Medizinisches Aspirationssystem

Die Erfindung betrifft ein medizinisches Aspirationssystem mit einem Katheter (1) mit wenigstens zwei Lumen, wobei ein erstes Lumen ein Aspirationslumen (2) bildet, das mit einer Aspirationseinheit zum Absaugen von Stoffen aus einem Blutgefäß verbunden ist, und ein zweites Lumen ein Infusionslumen (3) bildet, durch das ein Stoff dem Blutgefäß zuführbar ist, wobei eine Austrittsöffnung (4) des Infusionslumens (3) in einem Bereich zwischen einer Eintrittsöffnung (5) des Aspirationslumens (2) und einer Position proximal zur Eintrittsöffnung des Aspirationslumens (2) angeordnet ist. Sie zeichnet sich dadurch aus, dass das Infusionslumen (3) mit einer Kühleinheit verbunden ist, die eine gekühlte Flüssigkeit zur Verabreichung durch das Infusionslumen (3) bereitstellt.

Devices for clearing blockages in artificial and natural lumens

Catheter for removal of thrombi and application of medicaments

Thromben werden mittels sogenannter Aspirationskatheter entfernt. Dabei besteht die Gefahr, dass sich gelöstes thrombotisches Material von der Stelle des Eingriffs entfernt und an anderer Stelle anlagert und dort eventuell ein anderes Gefäß verstopft. Ausgehend davon besteht die Aufgabe der Erfindung darin, einen Katheter bereitzustellen, der einen schnellen und komplikationslosen Abtransport von thrombotischem Material gewährleistet. Ein erfindungsgemäßes System (1) zur Entfernung von thrombotischem Material (D) aus einem Blutgefäß (B) umfasst einen Aspirationskatheter (2), der ein Führungselement (3) zum Einführen des Aspirationskatheters (2) in das Blutgefäß (B), und ein Infusionselement (4) zum Zuführen eines Medikaments (M) in das Blutgefäß (B), wobei das Infusionselement (4) Öffnungen (41) und/oder wenigstens einen (semi)permeablen Wandbereich aufweist, durch den bzw. die das Medikament (M) durchtreten kann. Nach der Applikation eines Thromben lösendes Medikaments werden die gelösten ...

A mini-invasive device for the endourologic treatment

A mini-invasive device (2) for the endourologic treatment, characterized in that it comprises a tubular conduit (4), longitudinally flexible, intended to be inserted through and cross the operating channel (8) of an endoscope (10), and in that said tubular conduit (4): - internally defines a substantially non-deformable lumen, - has a portion (14), that in operation is the proximal one, comprising a connector (30) for the connection to suction means, - has a portion (12), that in operation is the distal one, intended to project from the distal tip of said endoscope (10), - internally delimits a suction conduit (5) within which at least one tool (33, 41) used in the endourologic treatment can be removably inserted.

Clot retrieval device for ischemic stroke treatment

A clot removal device has a segment that has two main struts that serve as a frame for holding a plurality of secondary struts. Each of the two main struts has a proximal end that is connected at a proximal point of the segment and extends along a generally circumferential path, with each main strut terminating at a separate connecting point that is distal from the proximal point. The connecting points are connected to each other to form a generally tubular structure defining an inner lumen. The plurality of secondary struts forms a lattice of cells, with each cell surrounded by four secondary struts. Two generally straight distal struts are connected to the lattice of cells at a distal end of the segment, and are connected to each other to form a distal point. A distal opening is defined by the cells adjacent the distal struts, the distal opening communicating with the lumen and terminating at the proximal point.

Thrombectomy device and methods of use

The device disclosed herein is used to the remove a thrombus from the vasculature. It includes an aspiration catheter and a thrombus retrieval device that extends through the lumen of the aspiration catheter. An expandable braided assembly extends over a distal region of the retrieval device, and an activation wire extends through the lumen of the retrieval device to attach to and control the expansion of the braided assembly. Applying tension to the activation wire causes the braided assembly to expand to a diameter of the practitioner's choosing. For example, the practitioner may apply a first level of tension to the activation wire to deploy the braided assembly to a first diameter and then later change the diameter by applying a different level of tension. The expanded braided assembly contacts the thrombus and is pulled proximally toward the aspiration catheter to assist in thrombus removal.

Ultrasonic surgical instrument and cartilage and bone shaping blades therefor

Apparatus

Abstract This invention relates to apparatus and methods for removing emboli during vascular interventions. More particularly, the apparatus and methods of the present invention provide a catheter having an occlusion balloon of uniform thickness that facilitates retrograde flow and removes emboli from a treatment vessel via a funnel shaped taper of the occlusion balloon. 22813391 (GHMatters) 19/05/10 ...

Arterial device, system and method

An arterial device, system and method are provided for use with a patient undergoing a cardiac procedure. The system is configured for enabling one or more arterial devices to be accommodated in the aorta of the patient in use of the system, and a perfusion lumen arrangement provides therethrough a target perfusion flow into the aorta having a target perfusion flow rate that is significantly greater than a nominal perfusion flow rate, by an excess perfusion flow rate. A suction lumen arrangement provides therethrough a suction flow out of the aorta at a suction flow rate. The target perfusion flow rate and the suction flow rate may be concurrently and selectively controlled to cause embolic debris that may be present in the aorta to be diverted to the suction inlet, while providing the nominal flow rate to the body circulation of the patient.

SUCTION CATHETER

Rapid aspiration thrombectomy system and method

An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter (1320) having a flexible, distal luminal portion (1322) having an inner diameter defining a lumen (1323) extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine (1330) coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator (1340) having a flexible, distal dilator portion (1360) sized to be received within the lumen (1323) of the luminal portion (1322). Associated systems, devices, and methods of use are also described.

Single access flow-reversal catheter devices and methods

Embodiments herein include devices and methods directed toward creating reverse flow within a vessel and thereby providing protection against embolic debris. Embodiments comprise a catheter and a plurality of occluders that are expandable and adjustable within a lumen to create low-pressure areas that reroute blood flow and embolic debris therein.

Apparatus and methods for clot disruption and evacuation

APPARATUS AND METHODS FOR CLOT DISRUPTION AND The apparatus includes a catheter (50) having a combined infusion/aspiration lumen (70), a three lumen proximal portion (82) and a two lumen distal portion (84). An infusion/aspiration valve (132) located at the distal end of the catheter (50) facilitates performing infusion and aspiration through the same lumen (70), which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen (70) to be made larger without the need to increase the diameter of the catheter (50). Differing material properties in the proximal and distal portions (82, 84) of the catheter (50) enable the proximal portion (82) to be made stiffer for pushability, while the distal portion (84) is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator (80) to be received within the catheter (50).

Flow restoration systems and methods for use

Apparatus and methods are provided for removing obstructive material within a body lumen. The apparatus includes a macerator device deployable from a sheath that includes an expandable cage carried by a shaft and within a constraint tube. The shaft is movable relative to the constraint tube for deploying and expanding the cage within a body lumen such that an open end of the cage is oriented towards obstructive material. The cage is advanced to capture the material or the material is directed into the cage using an expandable member expanded beyond the material and retracted to direct the material into the cage. The cage is withdrawn into the constraint tube to compress the cage radially inwardly. Material extending through apertures in the cage are sheared off by a sharpened edge of the constraint tube. The smaller, sheared off particles are then aspirated from the body lumen through the sheath.

Devices and methods for the removal of lenticular tissue

An exemplary surgical device includes a shaft with a lumen defined therethrough and an element movable from a stored position to a deployed position in which a larger portion of the element extends out of the distal end of the lumen; wherein motion from the stored position to the deployed position causes a first leg of the element to advance distally relative to the distal end of the shaft, and causes a second leg of the element to move proximally relative to the distal end of the shaft.

Method for resection of tumors and tissues

Surgical snare

Embodiments of the invention provide a surgical snare structure in which the material used for the snare and the deployment mechanism of the snare are configured to improve the cutting efficacy of the snare. In particular, the surgical snare structure of the invention may omit the kink or nib present in the loop of known surgical snares and/or may provide a reaction surface against which the cutting action of the snare is effective. The surgical snare of the invention may be a cold, i.e. mechanical-only effect, snare, or may be used in conjunction with radiofrequency (RF) and/or microwave energy to enhance a cutting or coagulation effect.

FLOW PROTECTION DEVICE FOR ISCHEMIC STROKE TREATMENT

A clot removal device has an expandable treatment member, a proximal section, and a transition section having a distal end connected to the proximal end of the expandable treatment member, and a proximal end connected to the distal end of the proximal section. A delivery wire has a distal end coupled to the proximal section. The diameter of the proximal section is smaller than the diameter of the expandable treatment member, and the transition section has a diameter that varies from its proximal end to its distal end.

THROMBECTOMY CATHETER AND METHODS OF USE

A thrombectomy catheter with a catheter or delivery sheath having a dual lumen extending therethrough, the catheter having a proximal segment and a distal segment and a linear section coupled therebetween, the distal segment configured as a loop, a port or aperture formed therein said dual lumen of said catheter, the port positioned proximate the distal segment, and a guidewire configured to longitudinally traverse therethrough one of the dual lumen of the catheter, an aspiration device connected thereto one of the dual lumen and configured to create a vacuum therein the catheter and the loop to extract a biomaterial.

DIFFUSION ENHANCING COMPOUNDS AND THEIR USE WITH THROMBECTOMY AND EMBOLECTOMY AND OTHER VASCULAR DISEASE PROCEDURES

The subject invention relates to novel methods for the rapid treatment of disorders resulting from thrombosis or embolism such as a myocardial infarction or stroke. Specifically, the invention relates to diffusion enhancing compounds and their use with embolectomy and thrombectomy, or other procedures for the treatment of ischemia.

SYSTEMS AND METHODS FOR THROMBOLYSIS AND DELIVERY OF AN AGENT

A system for aspirating thrombus and delivering an agent includes an aspiration catheter having a supply lumen having a proximal end, a distal end, and a wall, and an aspiration lumen having a proximal end, an open distal end, and an interior wall surface adjacent the open distal end, and at least one orifice at or adjacent the distal end of the supply lumen, in fluid communication with the aspiration lumen and located proximally of the open distal end of the aspiration lumen, wherein the at least one orifice is configured to create a spray pattern that is caused to impinge on the interior wall surface of the aspiration lumen such that the spray pattern upon impinging on the interior wall surface is caused to transform into at least a substantially distally-oriented flow capable of exiting the open distal end of the aspiration lumen.

FECALITH REMOVAL SYSTEM

Disclosed herein is a fecalith treatment system for the removal of an impacted fecalith from a formed diverticula. The fecalith treatment system having an endoscopic device having a steerable line configured to be introduced into a patient via the endoscopic device; and an articulable fecalith treatment device coupled to a distal end of a treatment conduit that is configured to be received therein the steerable line to be delivered to an operative position within the patient. Subsequently, the fecalith treatment device is configured to allow for the removal of the impacted fecalith without damaging the underlying diverticula tissue.

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter (1320) having a flexible, distal luminal portion (1322) having an inner diameter defining a lumen (1323) extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine (1330) coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator (1340) having a flexible, distal dilator portion (1360) sized to be received within the lumen (1323) of the luminal portion (1322). Associated systems, devices, and methods of use are also described.

METHOD AND DEVICE FOR INFUSION OF PHARMACOLOGIC AGENTS AND THROMBUS ASPIRATION IN ARTERY

A catheter device and method for treating an artery with thrombus, the catheter comprising an inflatable member. A carrier catheter has a proximal end and a distal end adapted to be inserted percutaneously into an artery, the carrier catheter having a tubular body adjacent to a rear end of the inflatable member. An inflating tube passes through the tubular body and having an open front end in fluid communication with the inflatable member to inflate same. An infusion tube is adapted to infuse pharmacologic agents, the infusion tube passing through the tubular body and having an open front end extending beyond the inflatable member. An aspiration tube is adapted to aspire the thrombus, the aspiration tube passing through the tubular body and having an open front end between the carrier catheter and the inflatable member.

TRANSCATHETER DEVICE FOR THE ABLATION OF CALCIFIED TISSUE FROM AORTIC VALVE LEAFLETS

This transcatheter device for the ablation of calcified tissue at the flaps of an aortic valve, is characterised in that it comprises a flexible body (1) acting as a catheter and having a soft and flexible end piece (2) that engages with a previously inserted wire guide (g) suitable for passing through the flaps of the valve above the part where the calcified tissue needs to be removed, said end piece (2) having at least one cutting system (3) comprising two motorised rotating cutting heads (3a) and (3b) disposed coaxially one above the other, the head (3a) located at the end of the end piece and acting first to remove the calcified tissue, has arrangements suitable for making a rough cut by grinding, while the other head (3b) has arrangements suitable for making a fine cut by grinding, said cutting system being mounted in combination with a vacuum suction means (4), said end piece (2) being provided with an adjustable guide means (5) suitable for engaging with the calcified tissue over ...

Suction catheter.

Die vorliegende Erfindung betrifft einen Aspirationskatheter zur Aspiration von Material aus Blutgefässen. Der erfindungsgemässe Aspirationskatheter umfasst eine röhrenförmige Katheterwandung (2) mit einer ersten distalen Öffnung (3) und einer ersten proximalen Öffnung (4). Diese beiden Öffnungen (3, 4) sind durch ein erstes Lumen (5) miteinander verbunden. Der Aspirationskatheter umfasst weiter einen röhrenförmigen Führungsmantel (6) mit einer zweiten distalen Öffnung (7) und einer zweiten proximalen Öffnung (8). Durch diese beiden zweiten Öffnungen (7, 8) erstreckt sich ein zweites Lumen (9). Der röhrenförmige Führungsmantel ist innerhalb des ersten Lumens (5) angeordnet, wobei das zweite Lumen (9) koaxial zum ersten Lumen (5) verläuft. Die zweite proximale Öffnung (8) erstreckt sich lateral durch die röhrenförmige Katheterwandung (2). Der röhrenförmige Führungsmantel ist in einem Bereich (X) der ersten distalen Öffnung (3) und in einem Bereich (Y) der zweiten proximalen Öffnung (8) mit ...

Device for the endoscopic resectioning and removal of tissue comprises a grip handle with an inner tubular part for rotating or oscillating the cutting point

The device (1) comprises a hermetic disposable grip handle (2), an outer tubular part (3) with a proximal end, a distal end and cutting opening, an inner tubular part (4) with a proximal end, a distal end and cutting point near its distal end, a guide for rotating or oscillating the inner tubular part. The guide is housed inside the grip and comprises a brushless electric motor and power supply.

Device for treatments of resezione/endoscopica removal of the woven ones.

Dispositivo (1) per trattamenti di resezione/rimozione endoscopica dei tessuti comprendente: un manipolo (2) atto ad essere impugnato da un utilizzatore; un elemento tubolare esterno (3) comprendente una estremità prossimale, una estremità distale ed una apertura di taglio disposta in corrispondenza della detta estremità distale; un elemento tubolare interno (4) atto ad essere girevolmente ricevuto nellelemento tubolare esterno (3) e comprende una estremità prossimale, una estremità distale ed una punta di taglio in corrispondenza della sua estremità distale. Il dispositivo comprende inoltre dei mezzi, di guida (5) per porre in rotazione, e/o in oscillazione lelemento tubolare interno (4) rispetto allelemento tubolare esterno (3). I mezzi di guida (5) comprendono un motore elettrico (19) e dei mezzi di alimentazione elettrica per il motore elettrico (19) e sono contenuti completamente allinterno del manipolo (2).

Aspiration Catheter.

Die vorliegende Erfindung betrifft einen Aspirationskatheter zur Aspiration von Material aus Blutgefässen. Der erfindungsgemässe Aspirationskatheter umfasst eine röhrenförmige Katheterwandung (2) mit einer ersten distalen Öffnung (3) und einer ersten proximalen Öffnung (4). Diese beiden Öffnungen (3, 4) sind durch ein erstes Lumen (5) miteinander verbunden. Der Aspirationskatheter umfasst weiter einen röhrenförmigen Führungsmantel (6) mit einer zweiten distalen Öffnung (7) und einer zweiten proximalen Öffnung (8). Durch diese beiden zweiten Öffnungen (7, 8) erstreckt sich ein zweites Lumen (9). Der röhrenförmige Führungsmantel ist innerhalb des ersten Lumens (5) angeordnet, wobei das zweiten Lumen (9) koaxial zum ersten Lumen (5) verläuft. Die zweite proximale Öffnung (8) erstreckt sich lateral durch die röhrenförmige Katheterwandung (2). Der röhrenförmige Führungsmantel ist in einem Bereich (X) der ersten distalen Öffnung (3) und in einem Bereich (Y) der zweiten proximalen Öffnung (8) ...

Medical cleanup mechanism for blood lipid garbage in blood vessel depths

Thrombus aspiration catheter with spiral cutting bolt breaking function

Single-channel counter-current catheter device and method

Double-container balanced lavaging device for hematoma remover

SURGICAL INSTRUMENT FOR STENT

DEVICES AND METHODS FOR THE TREATMENT OF TISSUE

CLOT RETRIEVAL DEVICE FOR ISCHEMIC STROKE TREATMENT

TISSUE REMOVAL DEVICE WITH ADJUSTABLE FLUID SUPPLY SLEEVE FOR NEUROSURGICAL AND SPINAL SURGERY APPLICATIONS

A tissue cutting device that is especially suited for neurosurgical applications is disclosed and described. The device includes a handpiece and an outer cannula in which a reciprocating inner cannula is disposed. The inner cannula includes a hinge between a body section and a cutting section that allows the cutting section to pivot when the inner cannula reciprocates within the outer cannula. A tissue collector is also provided and is in fluid communication with the lumen of the inner cannula. A fluid supply sleeve is disposed about the outer cannula and is selectively positionable along the length of the outer cannula.

ROTATIONAL ATHERECTOMY DEVICE WITH DISTAL EMBOLIC PROTECTION

A rotational atherectomy device for removing a stenotic tissue (3) from the iliac artery (1) of a patient. The device comprises a flexible, rotatable drive shaft (10) having an elongated proximal portion, an elongated distal portion, and an abrasive element (16) mounted to the drive shaft between the elongated proximal (11) and distal (14) portions of the drive shaft and configured for rapid rotation together with the drive shaft. The drive shaft is configured to extend throughout an entire length of the iliac artery to be treated and one elongated portion of the drive shaft extends out of the patient through a first access opening located in a femoral artery (9) which is ipsilateral to the treated artery. Another elongated portion of the drive shaft extends through a second access opening located in another peripheral artery (19) of the patient. A method for treating an iliac artery of a patient using such a rotational atherectomy device is disclosed. A pair of drive shaft sheaths (41, ...

Apparatus and methods for clot disruption and evacuation

The apparatus includes a catheter having a combined infusion/aspiration lumen, a three lumen proximal portion and a two lumen distal portion. An infusion/aspiration valve located at the distal end of the catheter facilitates performing infusion and aspiration through the same lumen, which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen to be made larger without the need to increase the diameter of the catheter. Differing material properties in the proximal and distal portions of the catheter enable the proximal portion to be made stiffer for pushability, while the distal portion is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator to be received within the catheter.

SYSTEMS AND METHODS FOR REMOVING UNDESIRABLE MATERIAL WITHIN A CIRCULATORY SYSTEM

A system for removing undesirable material from vessels and from chambers within the heart is provided. The system includes a suction cannula for removing the undesirable material from a site of interest within a patient. A filter device may be provided for capturing the undesirable material and removing it from the fluid flow. The system also includes pump for generating the necessary suction force through the suction cannula to dislodge the undesirable material from the site of interest and for generating a sufficient driving force to direct the fluid flow downstream within the system. The system further includes a reinfusion cannula for introducing fluid removed from the site of interest back into a patient. A method for removing undesirable material from vessels and from heart chambers is also provided.

Stent and Other Object Removal From a Body

This disclosure contains methods, devices, and systems for object removal from a body, including removal of a stent from a body. Some methods of the present disclosure include inflating a balloon on a catheter, engaging a stent with a socket defined by a surface of the balloon, the surface inwardly sloped toward a lumen of the catheter, and retracting a portion of the stent through the socket and into the lumen. The present disclosure also includes methods for making a catheter, including forming a balloon, inverting a portion of the balloon, and attaching the balloon to a catheter such that a surface of the balloon defines a socket that is inwardly sloped toward a lumen of the catheter.

Blood flow restoration and thrombus management methods

Systems, methods, and devices for the treatment of acute ischemic stroke that provide immediate blood flow restoration to a vessel occluded by a clot and, after reestablishing blood flow, address the clot itself. Immediate blood flow restoration advantageously can facilitate natural lysis of the clot and also can reduce or obviate the concern for distal embolization due to fragmentation of the clot. Several embodiments of the invention provide for progressive, or modular, treatment based upon the nature of the clot. For example, the progressive treatment can comprise a three-step progressive treatment process that includes immediate restoration of blood flow, in-situ clot management, and/or clot removal depending on the particular circumstances of the treatment. The in-situ clot management can include, for example, lysis and maceration. The progressive, or modular, treatment can be provided by a system or kit of one or more treatment devices.

INVERTING THROMBECTOMY APPARATUSES HAVING ENHANCED TRACKING

Mechanical thrombectomy apparatuses, and particularly knitted rolling tube mechanical thrombectomy apparatuses configured to have improved tracking for delivery through tortious vessels are described herein. Also described herein are methods of removing clots using a mechanical thrombectomy apparatuses in which the clot is larger than the tractor portion of the mechanical thrombectomy apparatus.

DEVICES AND METHODS FOR THE REMOVAL OF LENTICULAR TISSUE

An exemplary surgical device includes a shaft with a lumen defined therethrough and an element movable from a stored position to a deployed position in which a larger portion of the element extends out of the distal end of the lumen; wherein motion from the stored position to the deployed position causes a first leg of the element to advance distally relative to the distal end of the shaft, and causes a second leg of the element to move proximally relative to the distal end of the shaft.

AXIAL LENGTHENING THROMBUS CAPTURE SYSTEM

Systems and methods can remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions.

EMBOLECTOMY DEVICES AND METHODS FOR TREATMENT OF ACUTE ISCHEMIC STROKE CONDITION

Clot engagement element comprising bundle of unwoven fibers can be assembled to form an acute stroke treatment device. The device has the capability of forming a three dimensional filtration matrix comprising effective pores with a distribution of sizes. The bundle of fiber design allows the device to be effectively delivered into circuitous cerebral arteries to remove clot that causes stroke. The fiber bundle based filtration matrix offers the advantages of conforming to the changing inner perimeter of a blood vessel during a clot removal process and thus the capability to effectively retain and remove a clot in the vessel. The filtration matrix offers the additional advantage to trap any break-off of the clot during the removal process. A plurality of fiber bundles can be combined to form an effective clot engagement element. Supplemental engagement structure as well as mechanical treatment structure can be integrated into the stroke treatment device. The deployment of the fiber based ...

Aspiration Catheter

The invention relates to an aspiration catheter (1) for the extraction of thrombotic material from blood vessels, with a first (3) and a second lumen (6), wherein the first lumen (3) is distally provided with an aspiration opening (5) and the second lumen (6) of smaller cross section than the first lumen (3) and extending coaxially in the distal region (2) of the first lumen (3) being provided with a lateral (7) as well as distally located opening (8), said lateral opening (7) reaching through the wall of the catheter. Within the first lumen (3) a stabilization wire (11) is movably arranged which terminates distally of the lateral opening (7) of the second lumen (6) but proximally of the aspiration opening (5) of the first lumen (3).

UTERINE FIBROID TISSUE REMOVAL DEVICE

A uterine fibroid tissue removal device includes an inner tube disposed within an outer tube and configured to be translated and rotated relative to the outer tube, and a separately formed unitary distal tip member attached to a distal end of the inner tube, such that the distal tip member translates and rotates relative to the outer tube along with the inner tube, wherein a distal facing open cutting end of the distal tip member in fluid communication with an axial lumen of the distal tip member translates across a tissue resection window in a sidewall of the outer tube so as to sever tissue extending therethrough, the distal tip member axial lumen being in fluid communication with an axial lumen of the inner tube, wherein an outer diameter of the distal tip member is greater than an outer diameter of the inner tube.

APPARATUS AND METHODS FOR REMOVING OBSTRUCTIVE MATERIAL FROM BODY LUMENS

An apparatus is provided for removing material within a body lumen that includes a catheter including a proximal end, a distal end for introduction into a body lumen, and an aspiration lumen extending therebetween; a guide member extending from the distal end and terminating in a distal tip, the guide member comprising a track adjacent a track lumen extending from the distal tip into the aspiration lumen; and an obstruction clearing device deployable from the guide member and retractable along the track. In addition or alternatively, the apparatus includes a cutting head reciprocable within the aspiration lumen adjacent the distal end for macerating material being aspirated into the aspiration lumen.

LITHROTRIPTER WITH IMPROVED STERILIZATION TIME

A method includes attaching one or more heat exchangers to one or more of a distal handle end and a proximal handle end of a lithotripter, the lithotripter including a handle, the handle having a handle distal end and a handle proximal end; a probe housed within the handle, the probe having a probe distal end and a probe proximal end; a passageway extending through the handle at least partially containing the probe; and a shielding insert contained within the passageway; wherein the probe, the passageway, and the shielding insert are contained within a central lumen of a driver resource; and performing a sterilization procedure on the surgical device; wherein the one or more heat exchangers collect and transfer heat at least through a full length of the handle, particularly to the lumen contained within the handle.

Thrombectomy catheter with flow directing mechanism

A thrombectomy catheter includes a catheter body having first and second lumens formed therein, and a flow directing mechanism upon a distal body end forming a channel for conveying fluid between an outlet and an inlet fluidly connected with the first and second lumens. The channel axially and circumferentially advances about the catheter body, and is positioned between the outlet and inlet such that fluid conveyed by the channel enters a suction stream flowing to the inlet and entraining material of disrupted thrombus.

CATHETERS HAVING SHAPED DISTAL PORTIONS, AND ASSOCIATED SYSTEMS AND METHODS

Disclosed herein are aspiration guide catheters having a pre-shaped distal portion configured to deflect away from a longitudinal axis of the catheter, and associated systems and methods. In some embodiments, an aspiration guide catheter includes an inner liner defining a lumen and having a proximal region and a distal region. The catheter further includes a braid of wires over the inner liner, and a wire coiled around the braid over at least a portion of the distal region of the inner liner. At least a portion of the braid over the distal region of the inner liner is configured to deflect away from a longitudinal axis of the proximal region. The catheter can further include an outer sheath over the braid, the wire, and the inner liner.

System and methods for removing undesirable material within a circulatory system utilizing during a surgical procedure

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.

SUCTION CATHETER

RAPID ASPIRATION THROMBECTOMY SYSTEM

МИНИИНВАЗИВНОЕ УСТРОЙСТВО ДЛЯ ЭНДОУРОЛОГИЧЕСКОГО ЛЕЧЕНИЯ

Группа изобретений относится к медицинской технике. Миниинвазивное устройство для эндоурологического лечения содержит гибкий в продольном направлении трубчатый канал, предназначенный для вставки в рабочий канал эндоскопа, при этом указанный трубчатый канал образует внутри практически недеформируемую полость, имеет проксимальную часть, включающую в себя соединитель для соединения с всасывающим устройством, имеет дистальную часть, выходящую наружу из дистального конца эндоскопа, изнутри разделяет всасывающий канал, в который можно съемно вставлять по меньшей мере один инструмент, используемый в эндоурологическом лечении. 2 н. и 13 з.п. ф-лы, 8 ил.

ХИРУРГИЧЕСКИЙ НАКОНЕЧНИК ДЛЯ ЭНДОСКОПИЧЕСКОЙ РЕЗЕКЦИИ

Группа изобретений относится к хирургии. Хирургический наконечник содержит вставку, выполненную с возможностью съемного крепления к наконечнику, причем эта вставка выполнена с возможностью аспирации жидкости и ткани через себя во время хирургического вмешательства и выполнена с возможностью снятия с наконечника для замены вставки и обеспечения доступа к вставке для стерилизации, вставка содержит деформируемые лапки, выполненные с возможностью размещения в отверстиях наконечника, наконечник содержит канавку в своем корпусе, выполненную с возможностью размещения в ней указанной вставки; аспирационный канал, находящийся на одной оси с указанной канавкой в корпусе наконечника, вследствие чего обеспечивается возможность аспирации жидкости и ткани по указанному аспирационному каналу и во вставку; и съемный клапан. Способ извлечения ткани во время эндоскопической процедуры включает введение резца в участок тела для разрезания ткани и для ее извлечения посредством указанного устройства. Группа ...

УСТРОЙСТВО ДЛЯ УДАЛЕНИЯ МАТЕРИАЛА И СПОСОБ ПРИМЕНЕНИЯ

Изобретение относится к медицине. Катетер для атерэктомии содержит внутренний приводной стержень, вращающий дистальный вращательный бурав для ткани со спиральной поверхностью резания. Бурав обеспечивает возможность прорезания катетера сквозь хроническую полную закупорку. Дополнительно катетер имеет дистальный режущий элемент и камеру для сбора. Режущий элемент вращается внешним приводным стержнем, выполненным для срезания материала со стенки сосуда на обрабатываемом участке по мере того, как катетер проталкивают в дистальном направлении через обрабатываемый участок. Камера для сбора расположена проксимально относительно режущего элемента и вращательного бурава для ткани. Катетер может содержать средства для направления материала, вырезанного из обрабатываемого участка, в камеру для сбора, средства для разрушения крупных частей материала, который может блокировать или закупоривать камеру для сбора, и средства для перемещения собранного материала из обрабатываемого участка к проксимальному ...

Многоразовое устройство для аноректального лигирования

Полезная модель многоразовое устройство для аноректального лигирования, имеющее внешнюю форму пистолета и содержащее рукоятку и лигирующий механизм, соединенный с возможностью съема с рукояткой, причем внутри рукоятки расположен пусковой механизм для срабатывания лигирующего механизма и всасывающее устройство, при этом лигирующий механизм содержит внутреннюю трубку (21), толкающий цилиндр (22) и затягивающий проволоку элемент (23) для перевязывания захваченной ткани. Внутренняя трубка (21) вставлена в толкающий цилиндр (22), который выполнен с возможностью перемещения относительно внутренней трубки (21), и между толкающим цилиндром (22) и внутренней трубкой (21) размещена предотвращающая переустановку конструкция, которая предотвращает возврат толкающего цилиндра (22) в исходное положение после перемещения, а затягивающий проволоку элемент (23) закреплен на толкающем цилиндре (22). Пусковой механизм содержит пусковой тумблер (31), направляющий толкатель (32) и верхний опорный элемент (33 ...

УСТРОЙСТВА И СПОСОБЫ ДЛЯ УДАЛЕНИЯ ХРУСТАЛИКОВОЙ ТКАНИ

Изобретение относится к медицинской технике, в частности к экстракции хрусталиковой или другой ткани в офтальмологической хирургии. Хирургическое устройство для разрезания хрусталика внутри капсульного мешка глаза содержит стержень и рассекающий элемент. Стержень имеет дистальный конец и просвет, образованный через стержень. Просвет имеет продольную ось и дистальный конец. Рассекающий элемент имеет первую сторону и вторую сторону. Рассекающий элемент выполнен с возможностью перемещения относительно стержня из первой конфигурации введения в направлении второй конфигурации захвата, в которой больший участок рассекающего элемента выдвинут из дистального конца просвета. По меньшей мере участок рассекающего элемента расположен внутри просвета, когда находится в первой конфигурации введения. Рассекающий элемент в первой конфигурации введения и дистальный конец стержня выполнены такого размера, чтобы вводить их в переднюю камеру глаза через разрез. Перемещение из первой конфигурации введения в ...

КАТЕТЕРНЫЕ УСТРОЙСТВА И СПОСОБЫ ОБРАЩЕНИЯ КРОВОТОКА С ОДНОЙ ТОЧКОЙ ДОСТУПА

... 1. Катетерное устройство с одной точкой доступа, содержащее:первый катетер с проксимальным и дистальным отверстием с просветом через него;первый окклюдер, расположенный внутри дистальной области первого катетера;второй окклюдер, расположенный проксимально относительно первого окклюдера;возвратное отверстие, расположенное проксимально относительно второго окклюдера; иканал, соединяющий дистальное отверстие первого катетера с возвратным отверстием,при этом первый окклюдер и второй окклюдер установлены с возможностью с регулирования расстояния между ними, а при расширении в сосуде первого окклюдера, кровь может протекать в канал.2. Устройство по п. 1, характеризующееся тем, что содержит второй катетер, связанный с первым катетером и расположенный концентрично ему.3. Устройство по п. 2, характеризующееся тем, что второй катетер связан с первым катетером с возможностью скользящего перемещения.4. Устройство по п. 3, характеризующееся тем, что содержит стилет-катетер, расположенный концентрично ...

Rotational atherectomy device with eccentric abrasive element and method of use

ASPIRATION CATHETER

To prevent a small diameter catheter 10 of soft material from collapsing when being used to aspirate a blood clot 25, the lumen 16 of the catheter contains a longitudinal member 26 having radially-extending fin elements 33. The longitudinal member may itself be a catheter having a lumen 22 through which passes a wire 27 having at its distal end an expandable basket 28 for retrieving the clot.

Aspiration catheter

EXHAUST OF YOU DEVICE

Methods and apparatus for removal of intracranial hemorrhage

A system for intracranial access that includes a support assembly is described. The system includes a tubular probe shaft that may be advanced through a hole in the patient's skull. The tubular probe shaft houses a rotating element that cuts clot, and is connected to a vacuum source to aspirate clot fragments and blood from the site. The rotating element may have a bident shape.

ASPIRATION CONTROL SYSTEM

Apparatus and methods for accessing and removing material from body lumens

Balloon encapsulation and isovolumetric suction thrombectomy catheter and methods thereof

The disclosure provides for an adjustable catheter system with isovolumetric suction and restoration of fluid for the removal of a thrombus and a method of use thereof. The catheter system includes an inner catheter and an outer sheath surrounding at least a portion of the inner catheter. The inner catheter may include at least three lumina extending from the proximal end to the distal end of the inner catheter, at least one infusion fenestration along the infusion segment, and a distal encapsulation balloon at the distal end. The outer sheath may include at least three lumina extending from the proximal end to the distal end of the outer sheath and a proximal encapsulation balloon at the distal end. The catheter system may further include an agitator for mechanical morcellation of the thrombus.

Apparatus and methods for clot disruption and evacuation

APPARATUS AND METHODS FOR CLOT DISRUPTION AND The apparatus includes a catheter (50) having a combined infusion/aspiration lumen (70), a three lumen proximal portion (82) and a two lumen distal portion (84). An infusion/aspiration valve (132) located at the distal end of the catheter (50) facilitates performing infusion and aspiration through the same lumen (70), which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen (70) to be made larger without the need to increase the diameter of the catheter (50). Differing material properties in the proximal and distal portions (82, 84) of the catheter (50) enable the proximal portion (82) to be made stiffer for pushability, while the distal portion (84) is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator (80) to be received within the catheter (50).

SYSTEM FOR TREATING EMBOLISM AND ASSOCIATED DEVICES AND METHODS

Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, positioning a distal portion of a catheter proximate to the clot material within the blood vessel. The method can further include coupling a pressure source to the catheter via a tubing subsystem including a valve or other fluid control device and, while the valve is closed, activating the pressure source to charge a vacuum. The valve can then be opened to apply the vacuum to the catheter to thereby aspirate at least a portion of the clot material from the blood vessel and into the catheter.

A CLOT RETRIEVAL DEVICE FOR REMOVING OCCLUSIVE CLOT FROM A BLOOD VESSEL

A clot retrieval device (1) has a clot engaging portion configured at the distal end of an elongate shaft (6) having an outer expandable member (2) comprising multiple expandable segments (26), and an inner expandable member (3) to facilitate restoration of blood flow through clot immediately after the clot retrieval device (1) is deployed at an obstructive site. The outer member (2) and inner expandable (member (3) comprises a collapsed configuration for delivery and an expanded configuration for clot retrieval, flow restoration and fragmentation protection. Proximal radiopaque markers (82) are positioned at the distal end of struts (20) of the outer member (2) just proximal to two proximal crowns (81). This position is advantageous because it denotes the start of the fully expanded diameter of the device, which is the portion of the device that is most desirable to deploy under the clot for optimal grip of the clot.

ASPIRATING BALLOON CATHETER FOR TREATING VULNERABLE PLAQUE

Devices and methods for extracting core material contained in plaque deposits inside a blood vessel are presented. A device in accordance with one embodiment of the invention includes a catheter having an elongate shaft, a collection array of a plurality of collection lumens disposed about the distal portion of the elongate shaft, a means for radially extending and/or collapsing the collection array, and a suction means for extracting material from the lumen of the blood vessel. A method in accordance with one embodiment of the present invention includes the steps of inserting the distal portion of the catheter into a lumen of the blood vessel, positioning the distal end of the collection array proximate plaque deposits, extending the collection array to rupture the plaque deposits and urging core material therefrom, and extracting the material using a suction means fluidly coupled to the proximal end of the collection array.

EMBOLIC PROTECTION SYSTEMS AND DEVICES

A vascular catheter including an embolic protection system (100) which is deployable within a blood vessel, comprising a filter (140) arranged to block the flow of solid particles and a gas capture system (150) for capturing gas bubbles entrained within a flow of blood along the blood vessel.

CATHETER SYSTEMS FOR ACCESSING THE BRAIN FOR TREATMENT OF ISCHEMIC STROKE

The invention describes catheter systems and methods for accessing the brain during endovascular/neurointervention procedures in the treatment of ischemic stroke. More specifically, a multi-axial catheter system and kit is described that improves the process of accessing a carotid artery particularly in patients having a tortuous aortic arch and thereafter improves the process of gaining access to the brain to enable the insertion of aspiration and/or the deployment clot retrieval devices. In addition, methods of utilizing these systems are described.

METHODS AND APPARATUS FOR REMOVAL OF INTRACRANIAL HEMORRHAGE

A system for intracranial access that includes a support assembly is described. The system includes a tubular probe shaft that may be advanced through a hole in the patient's skull. The tubular probe shaft houses a rotating element that cuts clot, and is connected to a vacuum source to aspirate clot fragments and blood from the site. The rotating element may have a bident shape.

CAPTURE ASSEMBLY AND METHOD

This patent document discloses assemblies and methods for removing obstructive material from a body vessel or other cavity. An assembly can include an elongate inner member, an elongate outer member, an aspirator, one or more valves, and a waste collection reservoir. Each of the elongate members can extend from a proximal end portion to a distal end portion and can include a lumen therethrough. The elongate inner member can be partially disposed in the lumen of the elongate outer member and can be moveable along its longitudinal axis relative to the elongate outer member. The aspirator can be in flow communication with the proximal end portion of the elongate inner member for drawing the obstructive material into or through its lumen. The one or more valves can be configured and positioned to allow obstructive material removed from the body vessel or cavity to be urged toward the waste collection reservoir.

FLUE FOR ULTRASONIC ASPIRATION SURGICAL HORN

A flue for use with an ultrasonic surgical tip, comprising protrusions or bumps on its inner surface with improved protrusion pattern, density and location. The flue has enhanced cooling effect for the ultrasonic surgical tip.

INFUSION CATHETER HAVING AN ATRAUMATIC TIP

The present invention is directed to apparatus and methods for treating a vascular occlusion by providing an infusion catheter (10) having an atraumatic tip (12) and at least one delivery port (14) configured to infuse fluid into the occlusion. The fluid that is infused dilutes the occlusion and reduces adhesion of the occlusion to an intima of the vessel wall, thereby causing the occlusion to dislodge. Emboli generated in the process are directed into an emboli removal catheter (60) for removal.

ARTERIAL DEVICE, SYSTEM AND METHOD

An arterial device, system and method are provided for use with a patient undergoing a cardiac procedure. The system is configured for enabling one or more arterial devices to be accommodated in the aorta of the patient in use of the system, and a perfusion lumen arrangement provides therethrough a target perfusion flow into the aorta having a target perfusion flow rate that is significantly greater than a nominal perfusion flow rate, by an excess perfusion flow rate. A suction lumen arrangement provides therethrough a suction flow out of the aorta at a suction flow rate. The target perfusion flow rate and the suction flow rate may be concurrently and selectively controlled to cause embolic debris that may be present in the aorta to be diverted to the suction inlet, while providing the nominal flow rate to the body circulation of the patient.

APPARATUS AND METHODS FOR REMOVING OBSTRUCTIVE MATERIAL FROM BODY LUMENS

An apparatus is provided for removing material within a body lumen that includes a catheter including a proximal end, a distal end for introduction into a body lumen, and an aspiration lumen extending therebetween; a guide member extending from the distal end and terminating in a distal tip, the guide member comprising a track adjacent a track lumen extending from the distal tip into the aspiration lumen; and an obstruction clearing device deployable from the guide member and retractable along the track. In addition or alternatively, the apparatus includes a cutting head reciprocable within the aspiration lumen adjacent the distal end for macerating material being aspirated into the aspiration lumen.

MEDICAL SYSTEMS AND METHODS

A fluid management system for use in a tissue resection procedure includes a controller. An inflow pump is operated by the controller and configured to provide fluid inflow through a flow path to a site in patient's body. An outflow pump is operated by the controller and configured to provide fluid outflow through a flow path from the site in patient's body. A motor driven resecting device may be provided for resecting tissue at the site. The controller is configured to actuate an inflow pump and an outflow pump in response to various signals and various algorithms are provided to provide malfunction warnings and assure safe operation.

Apparatus and method for clot disruption and evacuation

The apparatus includes a catheter having a combined infusion/aspiration lumen, a three lumen proximal portion and a two lumen distal portion. An infusion/aspiration valve located at the distal end of the catheter facilitates performing infusion and aspiration through the same lumen, which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen to be made larger without the need to increase the diameter of the catheter. Differing material properties in the proximal and distal portions of the catheter enable the proximal portion to be made stiffer for pushability, while the distal portion is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator to be received within the catheter.

System for the inhalation of thrombus

ABLATION DEVICE FOR CALCIFIED TISSUES AT THE FLAPS OF AN AORTIC VALVE

Le dispositif transcathéter pour l'ablation de tissus calcifiés au niveau des volets d'une valve aortique se caractérise en ce qu'il comprend un corps souple (1) faisant office de cathéter et présentant un embout souple et flexible (2) coopérant avec un guide-fil (g) préalablement introduit et apte à traverser les volets de la valve au-dessus de la partie où doivent être enlevés les tissus calcifiés, ledit embout (2) présentant au moins un système de coupe (3) monté en combinaison avec un moyen d'aspiration sous-vide (4), ledit embout (2) étant équipé d'un moyen de guidage réglable (5) apte à coopérer avec les tissus calcifiés au fur et à mesure de l'opération d'ablation par le système de coupe (3) en combinaison avec un effet de trajectoire en spirale appliqué à l'embout.

INFLATION LUMEN KINK PROTECTION AND BALLOON PROFILE

Clot evacuation and visualization devices and methods of use

BALLOON CATHETER SYSTEM AND METHODS OF USE THEREOF

A catheter including an outer conduit and an inner conduit movably disposed therein. The distal tip of the inner conduit extends beyond the distal tip of the outer conduit. An inflatable balloon has a first margin attached to the distal tip of the outer conduit, and a second margin attached to the portion of the inner conduit extending beyond the distal tip of the outer conduit. The balloon includes a middle portion, an inflatable distal side portion having at least one tapering part and an inflatable proximal side portion having at least one tapering portion. The length of proximal side portion is equal to or larger than the length of the middle portion. The distal end portion of the balloon is capable of intussuscepting upon proximal movement of the inner conduit within the outer conduit. The catheter includes an inflation/deflation port for introducing and removal of inflating fluid.

APPARATUS AND METHODS FOR TRANSFERRING ULTRASONIC ENERGY TO A BODILY TISSUE

An apparatus includes a monolithically-constructed transmission member that defines a lumen along a longitudinal axis. The transmission member includes a first portion, a second portion, and a third portion. The first portion is configured to be coupled to an ultrasonic energy source. The second portion is configured to contact a bodily tissue to transfer ultrasonic energy from a first portion into the bodily tissue. The third portion is disposed between the first portion and the second portion and defines a cross-sectional moment of inertia that is less than at least one of a cross-sectional area moment of inertia of the first portion or a cross-sectional moment of inertia of the second portion.

STONE FRAGMENT CAPTURE SYSTEMS FOR LITHOTRIPSY SYSTEMS

A lithotripsy device can comprise a handpiece, a lithotripsy probe extending from the handpiece, an energization source configured to deliver an energy to a distal end of the lithotripsy probe, a suction passage extending from the distal end of the probe and through the handpiece, and a capture device comprising a container comprising a storage space, an entry port configured to couple to the handpiece at the suction passage, and an exit port, and a capture element connected to the container and configured to facilitate capture of stone fragments within the storage space. A method can comprise fragmenting stones with a lithotripsy device, drawing a vacuum through the lithotripsy device to pull stone fragments and waste fluid therethrough, pulling the vacuum through a stone capture device connected to the lithotripsy device, depositing stone fragments within the stone capture device using a capture element, and drawing the vacuum through the device. 1. A lithotripsy device comprising:a handpiece;a lithotripsy probe extending from the handpiece;an energization source coupled to the handpiece configured to deliver an energy to a distal end of the lithotripsy probe;a suction passage extending from the distal end of the probe and through the handpiece; and{'claim-text': [{'claim-text': ['a wall defining a storage space within the container;', 'an entry port configured to couple to the handpiece at the suction passage; and', 'an exit port; and'], '#text': 'a container comprising:'}, 'a capture element connected to the container and configured to facilitate capture of stone fragments within the storage space.'], '#text': 'a capture device coupled to the handpiece, the capture device comprising:'}2. The lithotripsy device of claim 1 , wherein the capture element comprises at least one of (i) a filter disposed in the container and extending across the exit port claim 1 , (ii) a baffle disposed between the inlet port and the exit port or (iii) an elongate tube extending from ...

ACTUATED EXPANDABLE MOUTH THROMBECTOMY CATHETER

A clot retrieval catheter can have an expansile distal tip for flow restriction/arrest and improved aspiration efficiency and a large, distal facing mouth into which clots or other obstructions can be retrieved. The tip can be formed from a distal ring of leaflets or hoops. One or more pull cables can be retracted to actuate and radially expand the expansile distal tip. The clot retrieval catheter can have a catheter shaft with flexibility-adding features proximal of the tip. The catheter shaft can be a multi-lumen configuration with a large catheter lumen for passing auxiliary devices and directing aspiration and one or more guide lumens which can route the pull cables to the leaflets or hoops of the expansile tip. A flexible, low-modulus membrane can be disposed around at least a portion of the expansile tip and catheter shaft.

Aspirating balloon catheter for treating vulnerable plaque

Devices and methods for extracting core material contained in plaque deposits inside a blood vessel are presented. A device in accordance with one embodiment of the invention includes a catheter having an elongate shaft, a collection array of a plurality of collection lumens disposed about the distal portion of the elongate shaft, a means for radially extending and/or collapsing the collection array, and a suction means for extracting material from the lumen of the blood vessel. A method in accordance with one embodiment of the present invention includes the steps of inserting the distal portion of the catheter into a lumen of the blood vessel, positioning the distal end of the collection array proximate plaque deposits, extending the collection array to rupture the plaque deposits and urging core material therefrom, and extracting the material using a suction means fluidly coupled to the proximal end of the collection array.

Axial lengthening thrombus capture system

Axial lengthening thrombus capture systems and methods can remove materials of interest, including blood clots, from a body region. These can involve the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions.

SUCTION EVACUATION DEVICE

A method for removing a stone from a patient comprising the steps of: providing a suction evacuation assembly which includes a sheath and one or more side arms; inserting and positioning a distal end of the sheath into a lumen or cavity of a patient's body containing a stones; connecting a tube to one of the side arms and to a collection bottle; connecting another tube to the collection bottle and a negative pressure system; visualizing the stone or foreign body using a scope inserted through the assembly; activating the negative pressure system in order to remove the stone from the cavity if the diameter of the stone is narrower than an inside diameter of the sheath and the side arm, or performing a lithotripsy on the stone to create fragments with a decreased diameter which allow the passage through the assembly; and collecting the stone in the collection bottle. 144-. (canceled)45. A device for removing a stone , a stone fragment , a tissue fragment or a foreign body from a patient comprising:a suction evacuation assembly which includes a sheath and one or more side arms; 'wherein said proximal sheath and said distal sheath are constructed as a single piece, as two separate pieces secured together, or two separate pieces releasably secured together wherein the distal end of said proximal sheath is secured to the proximal end of said distal sheath;', 'said sheath being comprised of a proximal sheath and a distal sheath, said proximal sheath having a proximal end and a distal end and said distal sheath having a proximal end and a distal end;'}, 'an obturator which is configured to be inserted into a proximal end of the sheath and which extends beyond the distal end of the sheath and is releasably secured to the proximal end of said sheath;'}said side arm emanating from the outer surface of said proximal sheath;a pressure regulating mechanism accessible from the outer surface of said side arm and extending through said side arm, configured to allow an operator using ...

Enhanced Cross Stream Mechanical Thrombectomy Catheter

An enhanced cross stream mechanical thrombectomy catheter with backloading manifold having a distal end with outflow and inflow orifices at one side for producing concentrated cross stream jet flow for selective and concentrated thrombus ablation during thrombectomy procedures. The invention provides for suitable distancing of high powered ablation or suction forces from the near walls of the vasculature. Cross stream flow emanating from the one side of the distal end of the catheter resultantly urges the distal end of the catheter and thus the opposing non-orif iced side of the distal end of the catheter toward and against the vascular wall to inhibit contact of the inflow orifice with the vascular wall. Features of the invention include a geometrically configured insert to facilitate the backloading or exchange of guidewires.

Arthroscopic devices and methods

A medical device includes an elongated sleeve having a longitudinal axis, a proximal end and a distal end. A cutting member extends distally from the distal end of the elongated sleeve, and has sharp cutting edges. The cutting head is formed from a wear-resistant ceramic material, and a motor coupled to the proximal end of elongated sleeve rotate the cutting member. The cutter is engaged against bone and rotated to cut bone tissue without leaving any foreign particles in the site.

GLAND OR DUCT DIAGNOSTIC AND TREATMENT METHODS AND RELATED APPARATUS

A method is provided for treating a gland or duct of a patient. In a particular embodiment, an obstruction in a gland or duct and the orifice thereof can be alleviated; in another, a substance can be injected thereinto; in yet another, the gland can be aspirated. The method includes the step of inserting an elongated probe into a gland or duct via an orifice thereinto. In some embodiments the probe can have a longitudinal lumen therethrough, with at least one distal hole through the probe wall in fluid communication with the lumen. The lumen can be used in concert with a source of suction for removing debris from the gland or duct, and/or with a source of a fluid and pumping means, for injecting a substance into the gland or duct. 1. A device for treating a gland or duct of a patient comprising:a probe having an elongated distal end with an outer diameter of approximately 150 μm or less and a length of approximately 6 mm or less.2. The device recited in claim 1 , wherein the probe has a longitudinal lumen extending therealong defined by a probe wall and a distal hole through the probe wall in fluid communication with the lumen claim 1 , the distal hole positioned in the probe distal end.3. The device recited in claim 2 , further comprising a pump element in fluid communication with the lumen for pumping fluid through the lumen and out the distal hole into the meibomian gland.4. The device recited in claim 2 , wherein the distal hole comprises a plurality of distal holes.5. The device recited in claim 2 , wherein the probe lumen comprises a first lumen and a second lumen claim 2 , and the distal hole comprises a first distal hole in fluid communication with the first lumen and a second distal hole in fluid communication with the second lumen claim 2 , such that suction can applied to the first lumen while fluid is injected through the second lumen.6. The device recited in claim 2 , further comprising an elongated element positioned at least partially within the probe ...

MEDICAL DEVICE

A medical device is able to achieve a high aspiration pressure while also effectively transmitting rotational torque to a cutting portion to remove an object inside a biological lumen. The medical device includes a drive shaft, an outer tube accommodating the drive shaft, a cutting portion fixed to the drive shaft, and a hub unit. The hub unit has a first housing with an aspiration port, a second housing with a liquid delivering port, and first and second seal portions disposed between the second housing and the drive shaft. The first seal portion has a first frictional coefficient, and the second seal portion has a second frictional coefficient. The first frictional coefficient is lower than the second frictional coefficient, and the first seal portion is located on a distal side of the second seal portion.

Bone marrow harvesting device

Bone marrow harvesting devices and methods of use for harvesting bone marrow from a biological source of bone marrow are provided that promote ease of use, and reduce patient pain and potential trauma to harvested bone marrow, wherein an exemplary bone marrow harvesting device includes an elongated shaft comprising a distal region, a proximal region, and a lumen extending therebetween, the distal region comprising a plurality of through-wall apertures in fluid communication with the lumen; and an expandable member disposed along the distal region thereof and configured to transition between a collapsed state and an expanded state for vibrating to disrupt the bone marrow. Methods of using the inventive bone marrow harvesting device to provide more efficient bone marrow disruption, improve the efficiency of bone marrow aspiration, and increase the quantity of bone marrow harvested in a single procedure are also provided.

Uterine fibroid tissue removal device

A uterine fibroid tissue removal device includes an inner tube disposed within an outer tube and configured to be translated and rotated relative to the outer tube, and a unitary distal tip member attached to a distal end of the inner tube such that the distal tip member translates and rotates relative to the outer tube along with the inner tube, wherein a distal facing open cutting end of the distal tip member in fluid communication with an axial lumen of the distal tip member translates across a tissue resection window in a sidewall of the outer tube so as to sever tissue extending therethrough, the distal tip member axial lumen being in fluid communication with an axial lumen of the inner tube, wherein the axial lumen of the distal tip member is smaller in cross-sectional area than the axial lumen of the inner tube, and wherein the distal tip member has a length greater than a length of the resection window.

Device and method for clot capture

A clot removal device and method for removing a clot from a blood vessel may employ a tubular clot capture element. The clot capture element may be configured for deployment in a blood vessel for surrounding a clot. The clot capture element may have an opening therein configured to receive and guide a clot engaging element and may be configured to radially contract upon retraction, such that when the clot capture element surrounds a clot and is retracted in a longitudinal direction of the blood vessel, the clot capture element is configured to exert a radially inward compression force on the clot.

Aspiration catheters for thrombus removal

Systems for less invasive medical procedures comprise a filter device mounted on an integrated guiding structure and an aspiration catheter. These components can be used together or separately, and the system can be used with other medical devices that are designed for less invasive procedures, such as procedures in a patient's vasculature. The catheter can have a radiopaque band that is held in place under metal wire embedded within the polymer forming the tube of the catheter. In some embodiments, the aspiration catheter has a small diameter distal portion that can access into small diameter vessels in which the distal portion has a smaller average diameter than the remaining tube of the catheter.

Atherectomy device

A device for modifying a body lumen of a mammal in need thereof is provided, comprising a helically-cut tube comprising cutting teeth, said helically-cut tube substantially coaxial with the longitudinal axis of said device, a ramp wire that is displaced from the longitudinal axis of said device over at least a portion of said ramp wire and is enclosed by said helically-cut tube over at least a part of the length of said ramp wire, a drive rod wherein the broach may be moved proximally, distally, and/or radially via proximal, distal, and radial motions, respectively, of the drive rod. Also provided are methods for using the device.

Minimally Invasive Devices for Multi-Fluid Tissue Ablation

Prostate treatment using fluid stream to resect prostate tissue, thereby relieving symptoms of conditions such as BPH, prostatitis, and prostatic carcinoma. A device having a fluid delivery element is positioned within a lumen of the urethra within the prostate. A fluid stream is directed outwardly from the fluid delivery element toward a wall of the urethral lumen. The fluid delivery element is moved to scan the fluid stream over the wall to remove a volume of tissue surrounding the lumen. The fluid may be combined with therapeutically active substances or with substances that increase resection efficiency. Fluid force may be adjusted to provide selective tissue resection such that soft tissue is removed while harder tissue is left undamaged. In order to gain a working space within the urethra, another fluid may be introduced to insufflate the urethra in the region of treatment.

Stent and other object removal from a body

This disclosure contains methods, devices, and systems for object removal from a body, including removal of a stent from a body. Some methods of the present disclosure include inflating a balloon on a catheter, engaging a stent with a socket defined by a surface of the balloon, the surface inwardly sloped toward a lumen of the catheter, and retracting a portion of the stent through the socket and into the lumen. The present disclosure also includes methods for making a catheter, including forming a balloon, inverting a portion of the balloon, and attaching the balloon to a catheter such that a surface of the balloon defines a socket that is inwardly sloped toward a lumen of the catheter.

BALLOON ENCAPSULATION AND ISOVOLUMETRIC SUCTION THROMBECTOMY CATHETER AND METHODS THEREOF

The disclosure provides for an adjustable catheter system with isovolumetric suction and restoration of fluid for the removal of a thrombus and a method of use thereof. The catheter system includes an inner catheter and an outer sheath surrounding at least a portion of the inner catheter. The inner catheter may include at least three lumina extending from the proximal end to the distal end of the inner catheter, at least one infusion fenestration along the infusion segment, and a distal encapsulation balloon at the distal end. The outer sheath may include at least three lumina extending from the proximal end to the distal end of the outer sheath and a proximal encapsulation balloon at the distal end. The catheter system may further include an agitator for mechanical morcellation of the thrombus. 1. A catheter system for removal of a thrombus from a vessel , comprising: at least one infusion fenestration along the infusion segment; and', 'a distal encapsulation balloon at the distal end; and, 'an inner catheter having a proximal end, an infusion segment, and a distal end, the inner catheter comprising 'a proximal encapsulation balloon at the distal end,', 'an outer sheath having a proximal end and a distal end, the outer sheath comprisingwherein the outer sheath surrounds at least a portion of the inner catheter and the distal encapsulation balloon and the proximal encapsulation balloon are separated by a distance along the infusion segment.2. The catheter system of claim 1 , wherein the distal encapsulation balloon and the proximal encapsulation balloon are compliant balloons operable to accommodate varying vessel sizes and minimize damage or injury to the vessel.3. The catheter system of claim 1 , wherein the distance between the distal encapsulation balloon and the proximal encapsulation balloon is adjustable.4. The catheter system of claim 1 , wherein the distance between the distal encapsulation balloon and the proximal encapsulation balloon form a thrombolytic ...

LIPOSUCTION CANNULA WITH IMAGING MEANS

The cannula () comprises a tube () with a front end () at which there is provided at least one suction opening (), and with a back end () intended to be connected to a source of vacuum; in the tube () there being defined at least one longitudinal flow conduit () for the aspirated material; and an imaging apparatus () capable of supplying first signals or data allowing the generation of a visual representation of the environment in close proximity to the front end of the tube () of the cannula () down to a first depth or distance, and second signals or data allowing the generation of a visual representation of the environment around the front end of the tube () of the cannula () down to a second depth or distance, greater than the said first depth or distance. 1. Liposuction cannula , comprising:a tube with a front end at which there is provided at least one suction opening, and with a back end intended to be connected to a source of vacuum; in the tube there being defined at least one longitudinal flow conduit for the aspirated material; anddetector means arranged at the front end of said tube and capable of supplying in use signals containing information useful for the operator using the cannula;wherein the said detector means comprise an imaging apparatus capable of supplying first signals or data allowing the generation of a visual representation of the environment in close proximity to the front end of the tube of the cannula down to a first depth or distance, and second signals or data allowing the generation of a visual representation of the environment around the front end of the tube of the cannula down to a second depth or distance, greater than the said first depth or distance.2. Liposuction cannula according to claim 1 , wherein said imaging arrangement comprises a first imaging device capable of producing video signals or data for displaying the environment in close proximity to the front end of said tube.3. Liposuction cannula according to claim 1 , ...

Clot evacuation and visualization devices and methods of use

An integrated clot evacuation device having visualization for use in neurosurgical applications, particularly for the evacuation of clots formed as a result of intracranial hemorrhage (ICH). The device may further include an integrated camera and light for visualizing the interior of the brain and the clot itself. Further, the device is configured to evacuate clots through aspiration and irrigation.

Embolus Removal Device with Blood Flow Restriction and Related Methods

A clot removal device has an expandable treatment member having a distal tip and a proximal end, a delivery wire having a distal end coupled to the proximal end of the expandable treatment member, and a flow restrictor carried along the delivery wire at a location that is separate and proximal from the expandable treatment member. The flow restrictor has a body with a distal section and a proximal section, the distal section being covered and the proximal section being uncovered. The expandable treatment member is moveable relative to the flow restrictor, and can be retracted into the distal section. 117-. (canceled)18. A device for removing a clot or embolus from a blood vessel , comprising:an expandable treatment member having a distal tip and a proximal end;a delivery wire having a distal end coupled to the proximal end of the expandable treatment member; anda flow restrictor carried along the delivery wire at a location that is separate and proximal from the expandable treatment member, the flow restrictor having a body with a distal section and a proximal section, with the body defining an outer surface, the flow restrictor assuming an expanded configuration and an unexpanded configuration, wherein the outer surface of the distal section is covered by a biocompatible polymer coating, and the outer surface of the proximal section is uncovered in both the expanded and unexpanded configurations.19. The device of claim 18 , wherein the uncovered proximal section has a smaller diameter than the covered distal section.20. The device of claim 19 , wherein the uncovered proximal section is tapered and the covered distal section is cylindrical.21. The device of claim 18 , wherein the expandable treatment member is configured to define a catch basket.22. The device of claim 18 , wherein the expandable treatment member is moveable relative to the flow restrictor.23. The device of claim 18 , wherein the expandable treatment member is retractable into the distal section of ...

AORTIC ARCH FILTRATION CATHETER FOR CAROTID ARTERY PROTECTION AND METHODS OF USE

Filtration systems with integrated filter element(s) forming portions of the wall of the filtration catheter are disclosed. The filtration catheters disclosed herein are designed to be used alone or in conjunction with another filter device to provide embolic protection of both carotid arteries. Occlusive element such as balloon is placed on the exterior of the filtration catheter to redirect blood flow in the vessels during the filtration process as well as to help anchor the filtration catheter inside the vessel. The integrated filter element(s) does not require collapsing thus significantly reduces the complexity of the filtration system retrieval process and the chances of releasing emboli back into the blood stream. The compact design of the filtration systems makes them particularly suitable for embolic protection during endovascular procedures on or close to the heart. 1. A biocompatible filtration catheter comprising:a shaft having a balloon lumen, a proximal end and a distal end;a proximal port in fluid communication with the balloon lumen and connected to the proximal end of the shaft;an integrated filter element having an inner flow lumen integrated as part of a wall of the catheter at or near the distal end of the shaft, wherein the integrated filter element provides for fluid flow out from the catheter interior;a distal section extending in a distal orientation from the integrated filter element and having a distal opening, wherein a tubular portion of the balloon lumen extends along the integrated filter element through the inner flow lumen from the shaft to the distal section;a balloon having an interior in fluid communication with the balloon lumen and that is associated with the exterior of the distal section at or near the distal end of the distal section that can extend radially outward from the exterior of and around the circumference of the shaft; anda conduit extending within the distal section from the distal opening to the inner flow lumen of ...

Shock Wave Applicator with Movable Electrode

A shock wave applicator includes a reflector and a movable shockwave-generating electrode disposed in the reflector at a first focal point. The reflector is at least a portion of an ellipsoidal shape having a long and small axis with the first focal point and a second focal point on the long axis, and the reflector terminates at an edge defining a membrane-covered aperture on a plane intersecting the small axis and coincident with the second focal point.

AUTONOMOUS ULTRASOUND GUIDED ENDOSCOPE

A surgical system includes an endoscope, a computing device, a vacuum source, and a laser source. The endoscope defines an elongate body having an ultrasound sensor disposed on a distal portion thereof, a first channel defined through the elongate body defining a first aperture extending through the distal portion, a second channel defined through the elongate body defining a second aperture extending through the distal portion and having an optical waveguide disposed therein. The computing device includes a display screen and a processor having a memory storing a software application, which when executed, processes image data captured by the ultrasound sensor and displays a representation of the patient's anatomy on the display screen. The vacuum source is in fluid communication with the first channel to cause a stone to be retained against the distal portion of the endoscope. The laser source is in electromagnetic communication with the optical waveguide. 1. A surgical system , comprising: an ultrasound sensor disposed on a distal portion of the elongate body;', 'a first channel defined through the elongate body of the endoscope, the first channel defining a first aperture extending through the distal portion of the elongate body;', 'a second channel defined through the elongate body of the endoscope, the second channel defining a second aperture extending through the distal portion of the elongate body; and', 'an optical waveguide disposed within the second channel;, 'an endoscope defining an elongate body, the endoscope comprising;'} a display screen; and', "a processor including a memory associated therewith for storing a software application, which when executed, processes image data captured by the ultrasound sensor and displays a representation of a patient's anatomy on the display screen;"], 'a computing device, the computing device comprising;'}a vacuum source in fluid communication with the first channel, the vacuum source configured to cause a stone of a ...

CATHETER INCLUDING SURFACE-TREATED STRUCTURAL SUPPORT MEMBER

In some examples, a catheter includes an inner liner, an outer jacket, and a structural support member positioned between at least a portion of the inner liner and at least a portion of the outer jacket. A surface of at least a portion of the structural support member is surface treated to increase an adhesion of the surface to at least one of the inner liner or the outer jacket. Examples surface treatments include physical treatments, chemical treatments, coating treatments, and combinations thereof. In some instances, the at least one portion of the structural support member is a relatively high density portion. 1. A catheter , comprising:an inner liner;an outer jacket; anda structural support member positioned between at least a portion of the inner liner and at least a portion of the outer jacket, wherein a surface of at least a portion of the structural support member is surface treated to increase an adhesion of the surface to at least one of the inner liner or the outer jacket.2. The catheter of claim 1 , wherein the structural support member is surface treated on an inner radial surface of the structural support member without being surface treated on an outer radial surface of the structural support member.3. The catheter of claim 1 , wherein the structural support member is surface treated on an outer radial surface of the structural support member without being surface treated on an inner radial surface of the structural support member.4. The catheter of claim 1 , wherein the surface of at least the portion of the structural support member includes a surface roughness greater than about 2 microns Ra.5. The catheter of claim 1 , wherein the surface of at least the portion of the structural support member is covalently bonded to at least one of the inner liner or the outer jacket.6. The catheter of claim 1 , wherein the surface of at least the portion of the structural support member comprises a coating covalently bonded to at least one of the inner liner ...

NOVEL ENHANCED ENDOVASCULAR MECHANICAL THROMBECTOMY DEVICES AND TECHNIQUES

A novel variable diameter aspiration catheter (VDAC) device and method for an enhanced endovascular mechanical thrombectomy technique is disclosed. In an aspect, the use of a VDAC allows endovascular mechanical thrombectomy techniques to be performed with “full flow control”. 1. A thrombectomy catheter comprising: a tip inner diameter (ID);', 'a tip outer diameter (OD);', 'a tip distal end;', 'a tip proximal end;', 'a flared end towards the tip distal end having a flared end ID and a flared end OD; and', 'a variable diameter portion towards the tip proximal end having a variable outer diameter (OD);, 'a distal tip having a shaft inner diameter (ID);', 'a shaft outer diameter (OD);', 'a shaft proximal end; and', 'a shaft distal end; the shaft distal end being continuous with the tip proximal end., 'a proximal shaft having225-. (canceled) The present application is a continuation of U.S. patent application Ser. No. 16/661,301, filed Oct. 23, 2019, which in turn claims benefit of U.S. Provisional Patent Application Ser. No. 62/749,744, filed Oct. 24, 2018. The contents of the aforementioned applications are incorporated by reference herein.The present disclosure generally relates to the field of endovascular procedures, and more specifically to endovascular thrombectomy devices for the endovascular procedures within the neurovascular space.Referring to , all conventional endovascular mechanical thrombectomy (EVMT) techniques (including Technique #s 1-4 below) for removal of thrombus (clot) in the setting of acute stroke rely on the same basic principles:a. A guide catheter is navigated to the internal carotid artery (ICA), either via the femoral or radial approach, but typically via the femoral artery. The guide catheter is navigated over a standard guidewire (typically 0.035 inch diameter), after which the guidewire is removed. Some of the guide catheters in use have a balloon at the tip that allows for management of ICA flow during clot manipulation.b. An ...

APPARATUS AND METHOD FOR TREATMENT OF POST THROMBOTIC SYNDROME

A medical apparatus has a thrombectomy device disposed in a sheath lumen of a sheath that is movable between an initial extended position and a retracted position. The thrombectomy device includes a first elongate cannula having a distal tip, a guidewire lumen, and a perforated region, which is proximal to the distal tip and is in fluid communication with the guidewire lumen. A second elongate cannula, which is configured to rotate, has a second lumen and a mechanical thrombectomy whisk, which is proximal to the distal tip. A third elongate cannula has a third exterior surface, a third lumen, an inflation passageway, an inflatable balloon connected to the third exterior surface, and an expandable embolic filter connected to the third exterior surface at a location distal to the inflatable balloon. The first elongate cannula is disposed in the second lumen. The second elongate cannula is disposed in the third lumen. 1. A medical apparatus , comprising:a sheath having a sheath distal end and a sheath lumen, the sheath movable between an initial extended sheath position and a retracted sheath position; and a first elongate cannula having a proximal end, a distal end having a distal tip, a guidewire lumen, and a perforated region, the perforated region having a plurality of perforations in fluid communication with the guidewire lumen, the perforated region proximal to the distal tip;', 'a second elongate cannula having a second proximal end, a second distal end, a second lumen, and a mechanical thrombectomy whisk, the first elongate cannula disposed in the second lumen, the mechanical thrombectomy whisk proximal to the distal tip, the second elongate cannula configured to rotate;', 'a third elongate cannula having a third exterior surface, a third proximal end, a third distal end, a third lumen, and an expandable embolic filter connected to the third exterior surface, the second elongate cannula disposed in the third lumen; and', 'a fourth elongate cannula having a ...

NERVE AND SOFT TISSUE REMOVAL DEVICE

Ablation devices useful for removing nerve and soft tissue via a minimally invasive procedure to alleviate pain are provided. The device comprises a cannula having an opening at a distal tip of the cannula, the opening configured for suction of a surgical site, and a movable tissue capture member having a portion disposed within the opening or adjacent to the cannula, the movable tissue capture member configured to capture tissue when moved in a first position. Methods for ablating nerve and/or soft tissue utilizing the ablation devices are also provided. 1. A medical device for a minimally invasive surgical procedure comprising a cannula having an opening at a distal tip of the cannula , the opening configured for suction of a surgical site , and a movable tissue capture member having a portion disposed within the opening or adjacent to the cannula , the movable tissue capture member configured to capture tissue when moved in a first position.2. A medical device of claim 1 , wherein (i) the distal tip of the cannula is blunt and a lumen is disposed adjacent to the opening of the cannula claim 1 , the lumen having a length that is less than the length of the cannula and the movable capture member is disposed within the lumen; (ii) a lumen is disposed adjacent and parallel to the opening of the cannula claim 1 , the lumen having a length that is less than the length of the cannula and the movable capture member is disposed within the lumen; or (iii) the cannula comprises an exterior claim 1 , the movable capture member slidably attached to the exterior of the cannula via a channel and the movable capture member extends distally from the opening of the cannula when in a first position to contact tissue.3. A medical device of claim 2 , wherein the movable tissue capture member is configured to contact tissue when in the first position and cut tissue when in the second position.4. A medical device of claim 2 , wherein the movable tissue capture member is flexible and ...

Blood Vessel Treatment with Pressure Shock Waves

A shock wave device to provide treatment within a blood vessel includes a shock wave reflector that directs shock waves laterally to blood vessel walls in a direction perpendicular to a central axis of symmetry of a catheter. 1. An intracorporeal shock wave apparatus comprising:a catheter sized to fit within a blood vessel, wherein the catheter includes a tubular outer wall with a catheter longitudinal central axis of symmetry; anda shock wave applicator coupled to the catheter and including a shock wave generation source disposed within an ellipsoidal reflector having a major ellipsoidal axis and a minor ellipsoidal axis, wherein the reflector is configured to focus waves from the shock wave generation source and the reflector includes an opening along the tubular outer wall such that the major ellipsoidal axis is perpendicular to the catheter longitudinal central axis of symmetry.2. The apparatus of claim 1 , wherein the shock wave generation source is enclosed within the reflector.3. The apparatus of claim 2 , wherein the shock wave generation source is selected from the group consisting of an electrohydraulic shock wave generator claim 2 , a laser shock wave generator claim 2 , and a piezoelectric shock wave generator.4. The apparatus of claim 1 , wherein the shock wave generation source is selected from the group consisting of an electrohydraulic shock wave generator claim 1 , a laser shock wave generator claim 1 , an electromagnetic shock wave generator and a piezoelectric shock wave generator.5. The apparatus of claim 3 , further comprising a fluid delivery line into the shock wave applicator.6. The apparatus of claim 1 , further comprising a plurality of shock wave applicators including ellipsoidal reflectors with major axes that are perpendicular to the catheter longitudinal central axis of symmetry.7. The apparatus of claim 6 , wherein the plurality of shock wave applicators include enclosed reflectors.8. The apparatus of claim 1 , wherein a plurality of ...

SYSTEMS AND METHODS FOR ASPIRATING FROM A BODY LUMEN

An aspiration device can be used to aspirate an obstruction from a blood vessel. The aspiration device is configured to allow controlled one-handed aspiration yet maintain a syringe plunger feel of vacuum. The aspiration device also allows one-handed injection to empty the device when needed. Furthermore, mechanisms enable one-handed locking of a plunger position of the device to maintain vacuum when the user releases the device. 121-. (canceled)22. A device for aspirating fluid from a body lumen , comprising:an internal syringe barrel member defining a chamber configured to contain fluid, the chamber having an opening through which fluid can pass;a plunger movably positioned at least partially within the chamber, the plunger including a plunger seal;an external syringe barrel connected to the plunger, wherein the internal syringe barrel is slidably positioned inside the external syringe barrel, wherein the plunger and the external syringe barrel collectively form a body that can slide relative to the internal syringe barrel;first and second finger elements extending outward from a proximal end of the internal syringe barrel;third and fourth finger elements extending outward from a distal end of the external syringe barrel;wherein movement of the first and second finger elements toward the third and fourth finger elements causes relative movement between the plunger seal and the chamber so as to aspirate fluid into the chamber;a locking mechanism movable between a first state and a second state, wherein the locking mechanism locks a position of the plunger seal relative to chamber when the locking mechanism is in the first state, and the locking mechanism permits relative movement of the plunger seal relative to chamber when the locking mechanism is in the second state.23. A device as in claim 22 , wherein at least some of the finger elements are tabs.24. A device as in claim 22 , wherein the locking mechanism is positioned such that a user can use a thumb to change ...

SURGICAL SYSTEMS WITH SESNSING AND MACHINE LEARNING CAPABILITIES AND METHODS THEREOF

Systems and methods for determining surgical system settings during a surgical procedure are disclosed. The surgical systems comprise of a control system, a means for tissue removal, sensing capabilities and machine learning application(s). The sensing capabilities and machine learning application(s) are configured to determine type and/or properties of the removed tissue and to predict preferred surgical settings for optimized removal and surgical outcomes. The learning machine application(s) communicates these preferred settings to a surgical control system. 1. A system for removing a selected portion of tissue structure from a part of a human body , the system comprising:a catheter having a tubular body comprising an outer sheath and an inner core;a hub assembly connected at a proximal end of the catheter for coupling to a control system;a transducer;a horn coupled to the transducer; anda hollow needle, having an inner lumen, coupled directly or indirectly to the horn, wherein the hollow needle includes a distal cutting tip to fragment and/or emulsify the selected portion of tissue structure.2. The system of claim 1 , wherein the transducer is coupled to a distal end of one of the inner core or the outer sheath.3. The system of claim 1 , wherein the transducer is coupled to the hub assembly and the inner core.4. The system of further comprises a guidewire sized to pass longitudinally through an entire length of the catheter and an inner lumen of the hollow needle claim 1 , the guidewire includes one or more deployable surgical assisting elements.5. The system of claim 1 , wherein the hub assembly comprises a sealed port for a guidewire claim 1 , an aspiration port claim 1 , an irrigation port and a drive circuitry port.6. The system of claim 1 , wherein the control system comprises an associated drive circuitry configured to provide a variable frequency alternating current to drive or excite the transducer at a select operating frequency and causes oscillation of ...

CATHETER FOR REMOVING FOREIGN BODY IN BLOOD VESSEL

A capturing unit provided on a distal end of a second tube can be deformed into a contracted state and an expanded state, in which the capturing unit is deployed to form a capturing chamber. The capturing chamber has an opening area decreased as it goes from a distal end opening of the capturing chamber toward a proximal end opening of the capturing chamber. A third tube rotatable relative to the second tube and a cutting unit provided on a distal end of the third tube for cutting a foreign substance are arranged in a second lumen. In the expanded state of the capturing unit, the cutting unit is arranged more toward the proximal end opening of the capturing chamber than the distal end opening. 1. A catheter for removing a foreign substance in a blood vessel , the catheter comprising:a tube configured to be inserted in the blood vessel; anda capturing unit configured to be radially expandable and to be guided into the blood vessel through the tube to capture the foreign substance in the blood vessel, the capturing unit comprising a frame having protrusions on an inner side of the capturing unit; anda guide unit configured to guide a foreign substance between the guide unit and the capturing unit toward the capturing unit, the guide unit comprising wire members, each of the wire members being convex toward a wall of the blood vessel when the guide unit is placed inside the blood vessel.2. The catheter according to claim 1 , wherein the capturing unit is configured such that an outer side of the capturing unit touches a wall of the blood vessel when the capturing unit is expanded.3. The catheter according to claim 1 , wherein the capturing unit and the guide unit are sized such that the foreign substance guided toward the capturing unit is nodulized between the frame of the capturing unit and the wire members of the guide unit.4. The catheter according to claim 1 , wherein the capturing unit comprises a portion configured to expand in a bowl shape extending from an end ...

Sealed neurovascular extendable catheter

A catheter is provided which includes an outer catheter and an extendable inner catheter. A sealing feature is positioned between the inner catheter and the outer catheter to seal the annular gap between the two while allowing axial translation. The seal may be a compliant protrusion surrounding the inner catheter and may have a chevron-shape for facilitating axial translation. The seal may be a one-way valve configured to allow antegrade flushing but prevent retrograde flow. The seal may be squeegee-like flange on the distal tip of the outer catheter. The seal may be an expandable bulge, which may be mechanically expandable or inflatable or which may be a photosensitive or electrosensitive hydrogel. The seal may include a spring that is radially compressed upon translation or rotation of the inner catheter to transiently break the seal. Also provided is a seal for sealing between the catheter and the vasculature.

Pressure Switch for Aspiration Systems and Devices

Pressure regulations allow for example, tension control on spring valves to regulate cycling behavior for aspiration catheter systems. Unique brain access and procedures are driven by the improved cycling patterns and managed periodic frequencies. 1. An improved pressure switch for cycling pressure between atmospheric and pump pressures which generates and communicates a novel cycle pattern.2. The improved pressure switch of claim 1 , whereby a curve which defines the cycle pattern shows that induced variations of cyclic pressure generate alternate periodic frequencies claim 1 , for example claim 1 , fixed or unfixed sinusoidal patterns.3. The improved pressure switch of claim 2 , effective for use in neurovascular and interventional procedures with currently existing medical devices.4. The improved pressure switch of claim 3 , effective for use with newly developed or later developed medical devices.5. A medical device system for cycling pressure between pump pressure and atmospheric pressure comprising claim 3 , in combination:at least an aspiration pump, suction tubing connecting the at least a pump to a device; andan associated aspiration catheter, whereby a novel cycle pattern is generated.6. The medical device system of claim 5 , defined by the curve in .7. The medical device system of claim 6 , whereby a spring-loaded mechanism is effective to actuate a release valve as mechanical means to regulate pressure.8. The medical device system of claim 7 , further comprising tension control on the spring valve.9. The medical device system of claim 8 , wherein cycling behavior is regulated.10. The medical system of claim 9 , forming a kit for using any medical device along with the pump and tubing and aspiration catheter.11. The medical device system of claim 10 , wherein the aspiration catheter is designed for neurovascular use.12. The medical device system of claim 10 , wherein the aspiration catheter is designed for peripheral vascular use.13. The medical device ...

AXIAL LENGTHENING THROMBUS CAPTURE SYSTEM

Systems and methods can remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions. 119-. (canceled)20. A clot capture system , comprising:a tubular body comprising a first end and a second end, the first end having an opening,wherein the tubular body is transformable to a first expanded configuration in which the first end is expanded, wherein the second end is compressed in the first expanded configuration, wherein the tubular body is folded between the first end and the second end such that a compressed portion of the tubular body is within an expanded portion of the tubular body, wherein the tubular body has a first expanded axial length in the first expanded configuration,wherein the tubular body is transformable to a second expanded configuration in which the tubular body has a second expanded axial length greater than the first expanded axial length.21. The clot capture system of claim 20 , further comprising an expanding guide catheter.22. The clot capture system of claim 20 , further comprising a funnel tip catheter.23. The clot capture system of claim 20 , wherein the tubular body is configured to be retracted through a funnel opening of an expanding guide catheter.24. The clot capture system of claim 20 , wherein the tubular body is configured to at least partially surround a thrombus in the second expanded configuration.25. The clot capture system of claim 20 , wherein the tubular body and a thrombus are configured to retracted into an expanding guide catheter.26. The clot capture system of claim 20 , further comprising at least one anchor.27. A clot capture system claim 20 , comprising:a tubular body comprising a first end and a second end, the first end having an opening,wherein the tubular body is transformable to a first expanded configuration in which the ...

Single handed ent tool

A tool, consisting of an enclosure and a rotatable knob retained by, and protruding from, the enclosure. The tool has a tube having a proximal end that is retained by the enclosure, and the tube has an axis of symmetry. A Geneva drive is retained within the enclosure, the Geneva drive consisting of a drive wheel fixedly attached to the rotatable knob and a driven wheel fixedly attached to the proximal end of the tube, so that an axis of rotation of the driven wheel coincides with the axis of symmetry of the tube. Thus, a continuous rotation of the rotatable knob causes the tube to rotate about the axis of symmetry in discrete angular steps.

ASSISTED ASPIRATION CATHETER SYSTEM

A thrombectomy system comprising an aspiration catheter having an aspiration lumen and a high pressure irrigation lumen, the aspiration catheter having a proximal end and a distal, and a control box fluidly connected to the aspiration catheter and configured to synchronously provide irrigation and vacuum through the aspiration catheter. 1. A thrombectomy system , comprising a control box adapted to be connected to the aspiration lumen and the high pressure irrigation lumen of the aspiration catheter;', 'a displacement pump;', 'wherein the control box is configured to signal the displacement pump to provide pulses of high pressure irrigation fluid from a fluid source in a sinusoidal pressure pattern to the high pressure irrigation lumen when vacuum from a vacuum source is present in the aspiration lumen, and to prevent the high pressure irrigation fluid from the fluid source from being provided to the high pressure irrigation lumen when the vacuum from the vacuum source is not present in the aspiration lumen;', 'wherein the aspiration lumen has a distal opening and wherein the high pressure irrigation lumen has a distal orifice directed into the aspiration lumen and configured to release a jet of irrigation fluid across a width of the aspiration lumen against an opposing wall of the aspiration lumen, wherein the distal orifice is proximal of the distal opening; and', 'wherein the jet forms a spray pattern that interacts with the opposing wall of the aspiration lumen in such a way that embolic material is diluted for aspiration and not forced out of the distal opening., 'an aspiration catheter having an aspiration lumen and a high pressure irrigation lumen, the aspiration catheter having a proximal end and a distal end;'}2. The thrombectomy system of claim 1 , wherein the distal orifice is proximal of the distal opening by at least 0.050 cm.3. The thrombectomy system of claim 1 , wherein the distal orifice is proximal of the distal opening by between 0.043 cm and 0. ...

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter having a flexible, distal luminal portion having an inner diameter defining a lumen extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator having a flexible, distal dilator portion sized to be received within the lumen of the luminal portion. Associated systems, devices, and methods of use are also described. 1. A method of performing a medical procedure at a treatment site in a cerebral vessel of a patient , the method comprising: a catheter having a catheter lumen and a distal end; and', 'an inner member, having a lumen, extending through the catheter lumen, wherein a tapered distal end of the inner member extends distal to the distal end of the catheter forming an assembled coaxial system of devices; and, 'assembling a coaxial system of devices, the coaxial system of devices comprisingadvancing the assembled coaxial system of devices together within the petrous portion of the internal carotid artery while a guidewire is not present in the lumen.2. The method of claim 1 , further comprising removing the inner member after the catheter is placed at or near the treatment site.3. The method of claim 2 , further comprising advancing a treatment device into the catheter lumen so that the treatment device resides at or near the treatment site.4. The method of claim 2 , further comprising removing occlusive material while applying a negative pressure to the catheter lumen to capture occlusive material at claim 2 , within claim 2 , or through the distal end of the catheter.5. The method of claim 4 , wherein the step of removing occlusive material ...

SUCTION EVACUATION DEVICE

A method for removing a stone from a patient comprising the steps of: providing a suction evacuation assembly which includes a sheath and one or more side arms; inserting and positioning a distal end of the sheath into a lumen or cavity of a patient's body containing a stones; connecting a tube to one of the side arms and to a collection bottle; connecting another tube to the collection bottle and a negative pressure system; visualizing the stone or foreign body using a scope inserted through the assembly; activating the negative pressure system in order to remove the stone from the cavity if the diameter of the stone is narrower than an inside diameter of the sheath and the side arm, or performing a lithotripsy on the stone to create fragments with a decreased diameter which allow the passage through the assembly; and collecting the stone in the collection bottle. 1. A method for removing a stone , a stone fragment or a foreign body from a patient using a suction evacuation assembly comprising the steps of:providing a suction evacuation assembly which includes a sheath and one or more side arms; wherein the distal end of said proximal sheath is secured to the proximal end of said distal sheath and wherein said proximal sheath has one or more side arms emanating from the outer surface of said proximal sheath; and', 'wherein the sheath having a lumen which is the same diameter as a lumen of said one or more side arms;, 'said sheath being comprised of a proximal sheath and a distal sheath, said proximal sheath having a proximal end and a distal end and said distal sheath having a proximal end and a distal end;'}, 'inserting an obturator into a proximal end of a sheath and securing said obturator to the proximal end of said sheath;'}inserting a distal end of said sheath into a lumen or cavity of a patient's body containing one or more stones or foreign bodies;positioning the distal end of said sheath in a position in close proximity to said stones or foreign bodies; ...

OCCLUSION AND CLOT TREATMENT WITH INTRACORPOREAL PRESSURE SHOCK WAVES

An intracorporeal pressure shock wave device to provide treatment within blood vessels artificial vessels and grafts that includes a frontal pressure shock wave reflector positioned at the distal end of an intracorporeal catheter to direct shock waves toward a treatment target, such as an occlusion and clot. 1. An intracorporeal pressure shock wave device to treat occlusions and blood clots comprising:a catheter sized to fit within at least one of a blood vessel, graft and artificial blood vessel, said catheter including radio-opaque markers;an inner member within the catheter; anda pressure shock wave reflector operatively attached to a distal end of the inner member to direct pressure shock waves, wherein the pressure shock wave reflector has a frontal exposure that angularly moves around a living hinge;a shock wave generator that is configured to produce pressure shock waves adjacent the reflector so that a focal volume of the pressure shock waves intersects at least one of a targeted occlusion and blood clots; anda membrane that creates an enclosed space around the shock wave generator and reflector that is filled with at least one of degassed water, saline solution and a saline-contrast mixture.2. The intracorporeal pressure shock wave device of claim 1 , wherein the reflector includes at least one of nitinol claim 1 , temperature memory metal claim 1 , hard plastic claim 1 , ceramic and glass.3. The intracorporeal pressure shock wave device of claim 1 , wherein the reflector includes a shape selected from the group consisting of elliptical claim 1 , paraboloid claim 1 , spherical claim 1 , planar claim 1 , and a combination of at least two of the foregoing.4. The intracorporeal pressure shock wave device of claim 1 , further comprising one or more distal passive protection devices and active suction devices to capture generated debris.5. An intracorporeal pressure shock wave device to treat occlusions and blood clots comprising:a catheter sized to fit within ...

FLEXIBLE INTRAVASCULAR TREATMENT DEVICES AND ASSOCIATED SYSTEMS AND METHODS OF USE

Flexible expandable treatment devices are disclosed herein. One aspect of the present technology, for example, is directed to an expandable tubular structure formed of an interwoven strand and configured to be positioned in a blood vessel. The interwoven strand may be arranged to form a plurality of cells and a plurality of joints between adjacent cells. At least one of the joints may include a first strand slidably interlocked with a second strand, and at least one of the first strand and the second strand may bend back on itself to form a restriction that limits disengagement of the first strand and the second strand at the joint. 130-. (canceled)31. A medical device comprising:an expandable tubular structure formed of an interwoven strand and configured to be positioned in a blood vessel, wherein the interwoven strand is arranged to form a plurality of cells and a plurality of joints between adjacent cells, andwherein at least one of the joints includes a first strand slidably interlocked with a second strand, and wherein at least one of the first strand and the second strand bends back on itself to form a restriction that limits disengagement of the first strand and the second strand at the joint.32. The medical device of wherein the restriction limits longitudinally compressive disengagement of the first strand and the second strand at the joint.33. The medical device of wherein the interlocking relationship of the first strand and the second strand limits longitudinally expansive disengagement of the first strand and the second strand at the joint.34. The medical device of wherein the expandable structure is formed of a single claim 31 , continuous filament such that both the first strand and the second strand are portions of the same filament.35. The medical device of wherein the expandable structure is formed of at least a first filament and a second filament separate from the first filament claim 31 , and wherein the first strand is a portion of the first ...

MEDICAL ASPIRATION DEVICES AND METHODS

A medical aspiration device includes an internal elongated element and a bulbous tip at a distal end of the internal elongated element. Together, the internal elongated element and the bulbous tip may define a disruptor of the medical aspiration device. The medical aspiration device may also include an outer elongated element, or a catheter, that includes a lumen within which the internal elongated element may be disposed and relative to which the bulbous tip may be extended and retracted. Extension and retraction of the bulbous tip may provide control over an aspiration force, or suction, that has been applied through the catheter to a distal tip of the catheter. Extension and retraction of the bulbous tip may disrupt matter to be aspirated by the medical aspiration device in a manner that facilitates aspiration of the matter. 1. A medical aspiration device , comprising:an internal elongated element including a lumen with an inner diameter sufficient to receive a guide wire and an outer diameter small enough to enable fluids to flow between the internal elongated element and a catheter within which the internal elongated element is positioned;a bulbous tip at a distal end of the internal elongated element, the bulbous tip having a maximum outer diameter that is at least as large as an inner diameter of a lumen of the catheter within which the internal elongated element is positioned to enable a portion of the bulbous tip to seal against the catheter at the distal end.2. The medical aspiration device of claim 1 , wherein the internal elongated element comprises a hypotube.3. The medical aspiration device of claim 2 , wherein the hypotube comprises a metal hypotube.4. The medical aspiration device of claim 3 , wherein the metal hypotube comprises a shape memory alloy.5. The medical aspiration device of claim 4 , wherein the shape memory alloy includes at least one bend.6. The medical aspiration device of claim 1 , wherein the bulbous tip includes a proximal side that ...

AUTOMATICALLY-LOCKING VACUUM SYRINGES, AND ASSOCIATED SYSTEMS AND METHODS

Automatically-locking syringes are disclosed herein. A syringe in accordance with embodiments of the present technology can include (i) a barrel, (ii) a plunger slidably positioned within the barrel, and (iii) a lock plate coupled to the barrel. The plunger also extends through an opening in the lock plate, and a biasing member is configured to bias the lock plate to a locking position. When the plunger is moved from a depressed position to a withdrawn position, the lock feature engages the lock plate to drive the lock plate away from the locking position to thereby permit the lock feature to pass through the opening in the lock plate. After the lock feature passes through the opening, the biasing member drives the lock plate to the locking position to inhibit movement of the plunger from the withdrawn position to the depressed position. 1. An automatically-locking syringe , comprising:a barrel;a plunger slidably positioned within the barrel, wherein the plunger is movable between a depressed position and a withdrawn position, and wherein the plunger includes a lock feature; and when the plunger is moved from the depressed position to the withdrawn position, the lock feature is configured to engage the lock plate to drive the lock plate to a position away from the locking position to thereby permit the lock feature to pass through the opening, and', 'after the lock feature passes through the opening, the biasing member is configured to drive the lock plate to the locking position to inhibit movement of the plunger from the withdrawn position to the depressed position., 'a lock plate coupled to the barrel and having an opening extending therethrough, wherein the plunger is slidably positioned in the opening, wherein the lock plate includes a biasing member configured to bias the lock plate to a locking position, and wherein—'}2. The syringe of wherein the lock feature includes a stop surface extending generally perpendicular to a longitudinal axis of the syringe ...

APPARATUS AND METHODS FOR ACCESSING AND REMOVING MATERIAL FROM BODY LUMENS

An apparatus and method are provided for accessing and/or removing material from a body lumen. The apparatus includes a tubular sheath including a shaft having a proximal end and an expandable distal end that is expandable between a collapsed configuration and an expanded, tapered configuration. A treatment member can be introduced into the body lumen through the tubular sheath. The treatment member includes one or more expandable members to interact with the material to be removed from the body lumen. 1. An apparatus for removing obstructive material from a body lumen and for dilating the body lumen , the apparatus comprising:an outer tubular member having a proximal end, an expandable distal end, and a first lumen extending between the proximal and distal ends, the distal end being expandable between a collapsed configuration and an expanded configuration wherein the distal end adopts a tapered shape that flares outwardly away from the proximal end to define an inlet that is larger than and communicates with the first lumen;an inner member having a proximal end and a distal end having a tapered profile, the inner member being removably disposed within the first lumen of the outer tubular member such that the inner member proximal end extends proximally from the outer member proximal end and a tapered distal tip of the inner member extends distally beyond the outer member distal end; anda treatment member sized to be introduced through the first lumen of the outer tubular member after removal of the inner member, the treatment member comprising an expandable treatment element on a distal end thereof for treating an occlusive region within a body lumen within which the outer tubular member is deployed.2. The apparatus of claim 1 , wherein the expandable treatment element comprises a first balloon and a second balloon disposed concentrically around the first balloon claim 1 , wherein the first balloon is more compliant than the second balloon.3. The apparatus of ...

SYSTEMS AND METHODS FOR REMOVAL OF BLOOD AND THROMBOTIC MATERIAL

A method for improving a flow condition through a catheter includes coupling a distal end of a first conduit of a tubing set to an aspiration lumen of an aspiration catheter, coupling a proximal end of the first conduit to a vacuum source, coupling a distal end of a second conduit of the tubing set to a supply lumen of the aspiration catheter, coupling a proximal end of the second conduit to a first fluid source, inserting a distal end of a sheath within the vasculature of a subject, placing the aspiration catheter through the sheath and advancing the aspiration catheter such that an open distal end of the aspiration lumen of the aspiration catheter is distal to a distal end of the sheath and is in proximity to a thrombus within a blood vessel of a subject, coupling an extension conduit in fluid communication with a lumen of the sheath to a second fluid source, and activating a pump such that pressurized fluid from the first fluid source is applied to the supply lumen of the aspiration catheter, wherein when insufficient flowable material is present adjacent the open distal end of the aspiration lumen, fluid from the second fluid source is caused to flow through the lumen of the sheath. 1. A method for improving a flow condition through a catheter , comprising: an elongate shaft configured for placement within a blood vessel of a subject;', 'a supply lumen and an aspiration lumen each extending along the shaft, the supply lumen having a proximal end and a distal end, and the aspiration lumen having a proximal end and an open distal end; and', 'an opening at or near the distal end of the supply lumen, the opening configured to allow the injection of pressurized fluid from a first fluid source into the aspiration lumen at or near the distal end of the aspiration lumen when the pressurized fluid is caused or allowed to flow through the supply lumen;, 'providing an aspiration catheter comprisingproviding a sheath comprising a proximal end, a distal end and a lumen ...

ASPIRATION THROMBECTOMY SYSTEM AND METHODS FOR THROMBUS REMOVAL WITH ASPIRATION CATHETER

A thrombectomy removal system includes a catheter having a distal end and defining a lumen filled with a liquid column having a proximal portion and a distal portion, a vacuum source, a vent liquid source, and a vacuum and vent control system configured to cyclically connect or disconnect the vacuum source and the vent liquid source to change a level of vacuum at the distal end and substantially prevent forward flow. The vacuum source and the vent source are respectively fluidically connected to the vacuum and vent valves. A manifold connects the proximal portion to the vacuum and vent sources through the valves. Control of the valves prevents forward flow of the distal portion out from the distal end during each cycle. Each cycle can have states including vacuum-only, first double-closed, vent-only, and second double-closed. A time of the double-closed states can be no greater than 30 ms. 1. A clot removal system , comprising:a catheter having a distal end and defining a lumen filled with a liquid column having a proximal portion and a distal portion;a controllable vacuum valve;a vacuum source fluidically connected to the vacuum valve;a controllable vent valve having a vent liquid input;a vent fluid source containing a vent liquid and fluidically connected to the vent valve to retain the vent liquid at the vent fluid input; to the vacuum source through the vacuum valve; and', 'to the vent fluid source through the vent valve;, 'a manifold connected to the catheter, to the vacuum valve, and to the vent valve, the manifold fluidically connecting the proximal portion of the liquid column in the lumen responsive to opening the vacuum valve, the vacuum source is fluidically connected to the liquid column in the lumen; and', 'responsive to opening the vent valve, the vent fluid source is fluidically connected to the liquid column in the lumen,, 'a controller connected to the vacuum valve and the vent valve and configured to selectively open and close the vacuum valve and ...

METHODS FOR REMOVING CALCIUM FROM PERIPHERAL ARTERY VESSELS

Methods of removing calcium and other deposits from peripheral and other vessel walls using ultrasound waves. In an exemplary method of treating a deposit in a patient's peripheral artery, the method comprises the steps of generating an ultrasound wave outside of the patient and directing the ultrasound wave toward a peripheral artery of the patient. 1. A method of treating a deposit in a patient's peripheral artery , comprising the steps of:generating an ultrasound wave outside of the patient; anddirecting the ultrasound wave toward a peripheral artery of the patient.2. The method of claim 1 , further comprising the steps of:introducing a suction catheter into the vasculature of the patient; andusing the suction catheter to aspirate a fragmented part of the arterial deposit.3. The method of claim 1 , further comprising the steps of:generating a plurality of ultrasound waves outside of the patient; anddirecting the plurality of ultrasound waves toward the peripheral artery of the patient wherein the generated plurality ultrasound waves vary in power or rate of wave delivery.4. The method of claim 3 , wherein the plurality of ultrasound waves have a rate of wave delivery of 2-4 Hz.5. The method of claim 1 , wherein the ultrasound wave comprises a rectangular shaped focal beam.6. The method of claim 1 , wherein the rectangular shaped focal beam has a length of 1-2 cm.7. The method of claim 3 , further comprising the step of:directing the plurality of ultrasound waves so that a length of the peripheral artery is treated.8. The method of claim 2 , wherein the suction catheter comprises a flared tip.9. The method of claim 1 , wherein the ultrasound wave is generated from an ultrasound wave source positioned outside the patient.10. A method of treating a deposit in a patient's peripheral artery claim 1 , comprising the steps of:positioning an ultrasound wave source exterior to a patient;generating a plurality of ultrasound waves from the ultrasound wave source; ...

KIDNEY STONE SUCTION DEVICE

A method of using a suction device to remove an object from a subject's body includes extending a suction device into the body through a lumen of a medical device and expanding the suction head from a contracted configuration to an expanded configuration within the body. The suction head may be provided at a distal end of an elongate conduit. The method may also include applying suction to move the object into the expanded suction head, and removing the suction device with the object from the body. 120-. (canceled)21. A method of using a suction device to remove an object from a subject's body , the suction device including an expandable suction head at a distal end of a conduit , comprising:extending the suction device into the body through a lumen of a medical device;expanding the suction head from a contracted configuration to an expanded configuration within the body;applying suction to move the object into the expanded suction head;preventing the object from moving proximally beyond the expanded suction head; andremoving the suction device with the object from the body.22. The method of claim 21 , wherein expanding the suction head includes transforming the suction head from a contracted configuration within the lumen to an expanded configuration outside the lumen.23. The method of claim 22 , wherein expanding the suction head from a contracted configuration to an expanded configuration includes applying heat or current to the suction head.24. The method of claim 23 , further including contracting the suction head from the expanded configuration to a closed configuration by removing the applied heat or current.25. The method of claim 21 , wherein removing the suction device includes removing the suction device through the lumen of the medical device.26. The method of claim 21 , wherein removing the suction device includes removing the medical device along with the suction device from the body.27. The method of claim 21 , wherein the suction head is self- ...

SUCTION EVACUATION DEVICE

A method for removing a stone from a patient comprising the steps of: providing a suction evacuation assembly which includes a sheath and one or more side arms; inserting and positioning a distal end of the sheath into a lumen or cavity of a patient's body containing a stones; connecting a tube to one of the side arms and to a collection bottle; connecting another tube to the collection bottle and a negative pressure system; visualizing the stone or foreign body using a scope inserted through the assembly; activating the negative pressure system in order to remove the stone from the cavity if the diameter of the stone is narrower than an inside diameter of the sheath and the side arm, or performing a lithotripsy on the stone to create fragments with a decreased diameter which allow the passage through the assembly; and collecting the stone in the collection bottle. 1. A device for removing a stone , a stone fragment or a foreign body from a patient comprising:a suction evacuation assembly which includes a sheath and at least one side arm; 'said sheath having a proximal end and a distal end;', 'an obturator having a straight or tapered distal end which is inserted into a proximal end of the sheath and which extends beyond the distal end of the sheath and is releasably secured to the proximal end of said sheath;'}the side arm emanating from the outer surface of said sheath, wherein said side arm further comprises a pressure regulating mechanism in the form of a longitudinal slit in respect of the axis of the side arm which allows a person using the suction evacuation assembly to increase the negative pressure within the suction evacuation assembly by covering the pressure regulating mechanism or decrease the negative pressure within the suction evacuation assembly by uncovering the pressure regulating mechanism;a flexible cap releasably secured to the proximal end of the sheath;a proximal end of a primary tube releasably secured to said side arm and a distal end of ...

ASPIRATION CATHETER SYSTEMS AND METHODS OF USE

Described are methods, systems, and devices for facilitation of intraluminal medical procedures within the neurovasculature including catheters and catheter advancement elements. 1. A coaxial catheter system , the system comprising: a distal, catheter portion having a lumen and a distal end having an opening from the lumen, the lumen having an inner diameter at the distal end of at least about 0.052″; and', 'a proximal extension coupled to and extending proximally from the distal, catheter portion, the proximal extension being less flexible than the distal, catheter portion; and, 'a catheter comprising a tubular portion having an inner diameter that is at least about 0.014″ up to about 0.024″, an outer diameter, wherein the outer diameter has at least one snug point, wherein a difference between the inner diameter of the distal, catheter portion and the outer diameter of the tubular portion at such snug point is no more than about 0.010″;', 'a proximal extension coupled to and extending proximally from the tubular portion, the proximal extension being less flexible than the tubular portion; and', 'a tip portion located distal to the at least one snug point of the tubular portion, wherein the tip portion has a length and tapers along at least a portion of the length of the tip portion,, 'a catheter advancement element comprisingwherein the coaxial catheter system has an advancement configuration characterized by:a) the catheter advancement element positioned coaxially within the lumen of the distal catheter portion, wherein the at least one snug point of the tubular portion is substantially aligned with the distal end of the distal catheter portion, and a distal point of the at least three points located a distance proximal from the distal-most end of the catheter advancement element, the distal point having a first bending force that is no greater than about 0.05 Newtons;', 'an intermediate point of the at least three points located a distance proximal from the ...

METHODS AND DEVICES FOR REMOVING OBSTRUCTING MATERIAL FROM THE HUMAN BODY

A device for removing obstructive material from a patient may include an elongate rotational member having a distal end and a proximal end, an internal irrigation catheter at least partially surrounding the rotational member, and an aspiration catheter at least partially surrounding the rotational member and the irrigation catheter. The distal portion of the rotational member is configured to change compliance of the obstructive material and facilitate obstructive material aspiration outside the patient. 1. A device for removing obstructive material from a patient , the device comprising:an elongate rotational member having a distal end and a proximal end;an internal irrigation catheter at least partially surrounding the rotational member; andan aspiration catheter at least partially surrounding the rotational member and the irrigation catheter,wherein the distal portion of the rotational member is configured to change compliance of the obstructive material and facilitate obstructive material aspiration outside the patient.2. The device of claim 1 , wherein the rotational member is configured to move with a combination of rotational motion claim 1 , reciprocal and angular motion along its longitudinal axis.3. The device of claim 1 , wherein the rotational member has a shape selected from the group consisting of various diameters along its length.4. The device of claim 1 , wherein the rotational member consists of a single solid rod.5. The method of claim 4 , wherein the rotational member has a shape selected from the group consisting of circular claim 4 , oval claim 4 , square and rectangular.6. The device of claim 1 , wherein the rotational member comprises a material selected from the group consisting of metals claim 1 , polymers claim 1 , metal alloys and combinations thereof.7. The device of claim 1 , further comprising a handle disposed on the aspiration catheter including an aperture in fluid communication with the lumen and configured to be covered with a ...

POLYPECTOMY SYSTEMS, DEVICES, AND METHODS

A polyp removal device comprises an outer tubular body; an inner tubular body being movable with respect to the outer tubular body; a handle; an actuation member configured to cause movement of the inner tubular body with respect to the outer tubular body when the actuation member is moved with respect to the handle; a vacuum port for coupling thereto of a vacuum source; and an opening near a distal end of the polyp removal device, the opening configured to allow fluid communication between an environment external to the polyp removal device and the lumen of the inner tubular body, wherein a size of the opening is variable based on the movement of the inner tubular body with respect to the outer tubular body. 1. A polyp removal device , comprising:an outer tubular body having proximal and distal ends, the outer tubular body comprising an elongate cylindrical outer profile and a cylindrical lumen extending in a longitudinal direction,wherein the cylindrical outer profile of the outer tubular body comprises a diameter no greater than 0.125 inches;an inner tubular body positioned within the lumen of the outer tubular body, the inner tubular body having proximal and distal ends, the inner tubular body comprising an elongate cylindrical outer profile and a cylindrical lumen extending in the longitudinal direction from the proximal end of the inner tubular body to the distal end of the inner tubular body,wherein the cylindrical outer profile of the inner tubular body comprises a diameter smaller than the cylindrical lumen of the outer tubular body to allow the inner tubular body to translate in the longitudinal direction with respect to the outer tubular body,wherein the distal end of the inner tubular body comprises a circular-shaped cutting edge, andwherein the inner tubular body is not rotatable with respect to the outer tubular body;a handle comprising a main body having an elongate cylindrical outer profile extending in the longitudinal direction, the handle being ...

System and method for guided removal from an in vivo subject

A device for removing objects from an in vivo subject includes vacuum tube adapted to be associated with a sheath sized to be inserted into a passageway of the subject. The vacuum tube provides a suction channel extending therethrough. A navigation mechanism is designed to guide the vacuum tube through the passageway. The removal device is designed to remove debris having an approximate diameter of between about 0.0001 mm to about 8 mm.

Embolic protection via biologic effect

The present disclosure discussed a device, method and/or system for temporarily closing and/or constricting one or more blood vessels upstream and/or downstream of the vascular intervention site to allow for aspiration of vascular debris resulting from a peripheral vascular surgical procedure so as to effectively remove such debris.

Catheter Apparatus

A suction catheter for fragmenting and removing obstructive material and thrombus from the body or other body cavities that comprises a tube-like body with a proximal and distal end and a pressure lumen and discharge lumen formed in the catheter body. At the distal end of the catheter is a suction opening adjacent to the opening of the nozzle injector formation. At the proximal end of the catheter the lumens are connected to an inlet port and a discharge outlet. A hub structure is coupled to the proximal end of the catheter tubular body and includes a pressure lumen for connecting a fluid source to the pressure inlet. At the proximal end of the tubular catheter a discharge lumen is connected at the proximal hub to a discharge reservoir. The suction port at the distal end of the catheter may be formed into a separate lumen within the catheter body and may include a guidewire lumen. 1. A suction catheter apparatus , comprising:a tubular body having a proximal end portion and a distal end portion, and a suction opening at the distal portion for collecting material from a region external to the distal portion, the tubular body defining at least first and second lumens extending from the proximal end portion to the distal end portion, each of the first and second distinct lumens in fluid communication with a chamber defined within the distal end portion of the tubular body, the chamber being in fluid communication with the suction opening, the distal end portion of the tubular body defining a longitudinal axis coincident with or parallel to a central axis circumaxially around which is formed a side wall of the tubular body;{'sup': '2', 'a tube extending from the first lumen of the tubular body into the chamber and defining a tube channel and an emission opening in fluid communication with the tube channel, the emission opening being positioned and oriented in combination with the tube channel to direct fluid flow into an emission jet that is flowable within the chamber ...

BALLOON ENCAPSULATION AND ISOVOLUMETRIC SUCTION THROMBECTOMY CATHETER AND METHODS THEREOF

The disclosure provides for an adjustable catheter system with isovolumetric suction and restoration of fluid for the removal of a thrombus and a method of use thereof. The catheter system includes an inner catheter and an outer sheath surrounding at least a portion of the inner catheter. The inner catheter may include at least three lumina extending from the proximal end to the distal end of the inner catheter, at least one infusion fenestration along the infusion segment, and a distal encapsulation balloon at the distal end. The outer sheath may include at least three lumina extending from the proximal end to the distal end of the outer sheath and a proximal encapsulation balloon at the distal end. The catheter system may further include an agitator for mechanical morcellation of the thrombus. 1. A catheter system for removal of a thrombus from a vessel , comprising: at least one infusion fenestration along the infusion segment; and', 'a distal encapsulation balloon at the distal end; and, 'an inner catheter having a proximal end, an infusion segment, and a distal end, the inner catheter comprising 'a proximal encapsulation balloon at the distal end,', 'an outer sheath having a proximal end and a distal end, the outer sheath comprisingwherein the outer sheath surrounds at least a portion of the inner catheter and the distal encapsulation balloon and the proximal encapsulation balloon are separated by a distance along the infusion segment.2. The catheter system of claim 1 , wherein the distal encapsulation balloon and the proximal encapsulation balloon are compliant balloons operable to accommodate varying vessel sizes and minimize damage or injury to the vessel.3. The catheter system of claim 1 , wherein the distance between the distal encapsulation balloon and the proximal encapsulation balloon is adjustable.4. The catheter system of claim 1 , wherein the distance between the distal encapsulation balloon and the proximal encapsulation balloon form a thrombolytic ...

Internal secondary calculus fragmentation mechanism

The present disclosure includes a calculi fracture device having an acoustic transducer for transferring acoustic energy via a primary fragmentation probe to fracture a calculi mass into calculi fragments, an evacuation tube connecting the probe to a pressure source, and a secondary fragmentation device located in an evacuation pathway extending along the fragmentation probe and the evacuation tube to further break up the calculi fragments to inhibit clogging at a more proximal location in the evacuation pathway. A method of inhibiting clogging of a calculi fracture device can include receiving, from a primary fragmentation device, fragments of a calculi mass along a passage of a evacuation pathway of the calculi fracture device and further breaking up the calculi fragments along the passage of the evacuation pathway at a location that is more proximal to a primary fragmentation location.

MAGNETIC FERROCENYL-FUNCTIONALIZED NANOPARTICLE

A functionalized magnetic nanoparticle including an organometallic sandwich compound and a magnetic metal oxide. The functionalized magnetic nanoparticle may be reacted with a metal precursor to form in a catalyst for various C—C bond forming reactions. The catalyst may be recovered with ease by attracting the catalyst with a magnet. 16-. (canceled)8. (canceled)9. The magnetic nanoparticle of claim 7 , wherein the nanoparticle has an average diameter in a range of 1-20 nm.10. The magnetic nanoparticle of claim 7 , wherein Ris an optionally substituted alkyl.11. The magnetic nanoparticle of claim 7 , wherein Ris an optionally substituted aryl.12. The magnetic nanoparticle of claim 7 , wherein the functionalized magnetic nanoparticle has a saturation magnetization in a range of 40-70 emu/g.1320-. (canceled) This application claims the priority of the filing date of the U.S. Provisional Patent Application No. 62/406,449 filed Oct. 11, 2016, the disclosure of which is hereby incorporated herein by reference in its entirety.This project was funded by the National Plan for Science, Technology and Innovation (MAARIFAH)-King Abdulaziz City for Science and Technology through the Science and Technology Unit at King Fand University of Petroleum and Minerals (KFUPM), the Kingdom of Saudi Arabia, award number 15-NAN4650-04.Aspects of this technology are described in an article “Magnetic nanoparticle-supported ferrocenylphosphine: a reusable catalyst for hydroformylation of alkene and Mizoroki-Heck olefination” by M. Nasiruzzaman Shaikh, Md. Abdul Aziz, Aasif Helal, Mohamed Bououdina, Zain H. Yamania, and Tae-Jeong Kim, in RSC Advances, 2016, pages 41687-41695, which is incorporated herein by reference in its entirety.The present disclosure relates to a functionalized magnetic nanoparticle including an organometallic sandwich compound and a functional group which can bind to a nanoparticle. The disclosure also relates to a magnetic catalyst which catalyzes C—C bond forming ...

Simultaneous Rotating Separator, Irrigator Microcatheter for Thrombectomy and Method of Use

The described invention provides several aspects designed to help mechanically break up a clot inside vessels and/or remove a clot via aspiration simultaneously, and a method of using same. According to some embodiments, the devices are adapted to irrigate a blood vessel during thrombectomy; to macerate an obstruction during thrombectomy, to block blood flow in a blood vessel during aspiration of a thrombus; or to capture and remove distal emboli. With the described invention, when used to ameliorate arterial clots, irrigation and aspiration are performed simultaneously in conjunction with a balloon or occlusive catheter to reverse flow of the vessel. With the described invention, when used to ameliorate venous clots and most arteriovenous dialysis grafts, a filter-tipped aspirator is used downstream from the clot to capture and remove dislocated emboli. An optional embodiment protects the three Great Vessels of the heart, unlike the prior art.

RECANALIZING OCCLUDED VESSELS USING CONTROLLED ANTEGRADE AND RETROGRADE TRACKING

A method and systems for treating chronic total occlusions, particularly those that are difficult to treat, is disclosed. In this approach, recanalizing the CTO is achieved using a combined antegrade and retrograde approach. The proximal end of the occlusion is penetrated using an antegrade wire, using a traditional approach. Using collateral vessels, the distal end of the occlusion is crossed in a retrograde fashion and by appropriately maneuvering each member, a continuous channel is created. Additional elements such as capture devices, dilators and injection catheters are also disclosed. 1. A capture device for capturing an object , comprising:a tubular member with proximal and distal ends, the tubular member comprising an expandable member on its distal end;wherein the expandable member is configured to capture the object advancing in a retrograde or antegrade direction, wherein the object is a guidewire or thrombus.2. The capture device of claim 1 , wherein the expandable member comprises a plurality of ribs configured to flare out when the proximal end of the capture device is pushed towards the distal end claim 1 , or when the distal end of the capture device is pulled towards the proximal end.3. The capture device of claim 1 , wherein the expandable member comprises a plurality of twistable wires configured to expand when twisted in one direction and collapse when twisted in the opposite direction.4. The capture device of claim 1 , wherein the expandable member is rotatable.5. The capture device of claim 1 , further comprising means to extract the object via suction. This application is a divisional of prior U.S. patent application Ser. No. 12/150,111 filed Apr. 23, 2008, which is a continuation in part of U.S. patent application Ser. No. 11/706,041 filed Feb. 12, 2007, and claims the benefit of U.S. Provisional Patent Application Ser. No. 60/817,603 filed Jun. 28, 2006, and U.S. Provisional Patent Application Ser. No. 60/773,357 filed Feb. 13, 2006, which ...

Nasolacrimal obstruction treatment device and method

A device and method for performing probing and intubation of the nasolacrimal system includes a tubular probe through which a tracer fluid is injected and collected in the nasal cavity to verify that the tip of the probe has passed through an obstruction and reached the nasal cavity. A sleeve fitted over the probe has distal segment that is inflated in order to retain the sleeve in the nasolacrimal system once the tubular probe has been withdrawn. Removal of blood and other obstructions encountered during the probing or intubation process is accomplished by connecting the proximal end of the probe to a suction device.

DYNAMIC ASPIRATION CATHETER AND METHODS

A distal aspiration catheter comprises catheter body having a central lumen and at least one luminal channel. An aspiration source is configured to attach to a proximal end/luer hub of the central lumen. Each luminal channel includes one mandrel and a distal portion of the mandrel extends into a distal portion in the central lumen. When the aspiration source is activated, a clot/emboli lodged in a blood vessel is partially ingested into the distal portion of the central lumen. The distal portion of the mandrel can move into the partially ingested clot to induce clot fatigue. The fatigued clot can be removed completely by a single pass of the distal aspiration catheter. 1. A clot removal device , comprising:a catheter body;a first lumen located within the catheter body and opening at a distal end of the catheter body; the first lumen configured for connection to an aspiration source;a second lumen opening within a distal region of the first lumen and at a proximal region of the catheter body;a first elongated mandrel positioned within the second lumen and configured to move into the first lumen so as to fatigue a clot at least partially positioned within the first lumen.2. The clot removal device of claim 1 , wherein a distal portion of the first elongated mandrel is configured to move translationally into and out of the first lumen.3. The clot removal device of claim 1 , wherein a distal portion of the first elongated mandrel is configured to move rotationally within the first lumen.4. The clot removal device of claim 1 , wherein a distal portion of the first elongated mandrel is configured to move both translationally into and out of the first lumen and rotationally within the first lumen.5. The clot removal device of claim 1 , further comprising a third lumen opening within the distal region of the first lumen and at the proximal region of the catheter body; and a second elongated mandrel positioned within the third lumen and configured to move into the first ...

Multi-Mode Viscometric Thrombectomy System

A thrombectomy system incorporates analytical instrumentation to determine the aspirate characteristic (the fluid contents of the thrombectomy catheter) and subsequently selects a thrombectomy operating mode appropriate to the current aspirate characteristic. Aspirate characteristics include: (1) blood, which is slowly aspirated, (2) thrombus which is rapidly aspirated to waste, (3) clot, which is systematically aspirated and (4) clog, which is systematically cleared. A differential viscometer is disclosed for a broad array of applications including thrombectomy, as well as industrial, automotive, environmental and scientific. A variable aperture catheter is disclosed which permits selective aspiration and infusion in either the axial or radial directions. 1. An apparatus comprising a viscometer , the viscometer having:a fluid conduit in fluid communication with a fluid reservoir;a transducer operable to measure pressure within the fluid conduit;a controlled source of differential pressure operable to create a flow of a fluid within the fluid conduit; anda controller that:a. controls a setpoint of the controlled source of differential pressure,b. receives pressure data from the transducer,c. correlates the pressure data to the setpoint;the controller thereby measuring a viscosity, in arbitrary units, of the fluid within the fluid conduit.2. The apparatus of wherein the controlled source of differential pressure comprises a liquid pump.3. The apparatus of wherein the controlled source of differential pressure is comprises an evacuated reservoir.4. The apparatus of and further wherein the controller changes the setpoint through a range of values and correlates pressure data resulting from the change in setpoint through the range to measure rheological properties claim 1 , in arbitrary units claim 1 , of the fluid within the fluid conduit.5. The apparatus of claim 1 , wherein:the contents of the fluid reservoir comprising a first fluid and a second fluid;the first ...

DEVICE AND METHOD FOR TREATMENT OF DEEP VEIN THROMBOSIS AND PULMONARY EMBOLISM

An intravascular thrombus retraction device and method utilizing wires compressible into a compact form within a catheter and are self-expandable into a wire mesh web with fluid-penetrable openings in the wire mesh small enough to filter clot particles. A base of the wire mesh web is connected to a radially ring-shaped structure supporting and maintaining an opening in the base of the wire mesh and forming a thrombus capture volume. The ring-shaped structure is compressible into the catheter and is self-expandable when free of compressive forces within the catheter to open up into the open, expanded ring-shaped structure, maintaining the opening in the opening in the base of the wire mesh. 1. An intravascular thrombus retraction device comprises wires that are compressible into a compact cylindrical form within a catheter and which are self-expandable into a wire mesh web with at least some parallel wires forming openings in the wire mesh sufficient to allow fluid passage and small enough to filter particles of at least 0.001 mm , a base of the wire mesh web connected to radially ring-shaped structure supporting and maintaining an opening in the base of the wire mesh and forming a thrombus capture volume , the ring-shaped structure being compressible into the catheter and being self-expandable when free of compressive forces within the catheter to open up into the open , expanded ring-shaped structure , maintaining the opening in the opening in the base of the wire mesh , multiple intermediate guide wires are connected to and spaced about the ring-shaped structure , the multiple intermediate guide wires are connected to withdrawal guidewires extending into the catheter , at least some of the wires in the wire mesh having protrusions extending inwardly into the thrombus capture volume , at least some of the protrusions having a height less than a distance between the at least some parallel wires.2. The device of wherein the wire comprises a non-thrombogenic metal and ...

Hydrodynamic vortex aspiration catheter

An actuated telescoping system for navigation within a vascular lumen and thrombectomy of a thrombus. The system includes a tubular catheter member having an open distal end defining a catheter lumen, a vacuum source, a rotational drive system, a flexible shaft having a channel coupled to the rotational drive system for rotational movement in response thereto, and an optional guidewire selectively inserted at least partially within the flexible shaft. The flexible shaft is at least partially disposed within the tubular catheter member configured for uncoupled rotational and translational motion therein and to optionally define a corkscrew motion in response to rotational driving force by the drive system that results in formation of hydrodynamic vortices within the catheter lumen. The telescoping system can be capable of reversibly transitioning between navigation and thrombectomy modes by differentially disposing and actuating the components and enable faster, more efficient and simpler removal of thromboembolic material.

KIDNEY STONE SUCTION DEVICE

A method of using a suction device to remove an object from a subject's body includes extending a suction device into the body through a lumen of a medical device and expanding the suction head from a contracted configuration to an expanded configuration within the body. The suction head may be provided at a distal end of an elongate conduit. The method may also include applying suction to move the object into the expanded suction head, and removing the suction device with the object from the body. 1. An endoscopic suction device , comprising:an elongate conduit extending from a proximal end to a distal end along a longitudinal axis, the proximal end configured to be coupled to a vacuum source and the distal end configured to extend into a subject's body; andan expandable suction head at the distal end of the elongate conduit, the suction head being configured to expand from a contracted configuration to an expanded configuration within the body.2. The device of claim 1 , wherein the distal end of the elongate conduit is sized to extend into the body through a lumen of a medical device claim 1 , and wherein the suction head is configured to transform from a contracted configuration within the lumen to an expanded configuration outside the lumen.3. The device of claim 2 , wherein the lumen is a lumen of an ureteroscope.4. The device of claim 1 , wherein the suction head is self-expandable.5. The device of claim 1 , wherein the suction head includes a shape-memory alloy.6. The device of claim 1 , further including an activation device configured to apply energy to the suction head to transform the suction head from the contracted configuration to the expanded configuration.7. The device of claim 1 , wherein suction head includes a filter.8. The device of claim 1 , wherein claim 1 , in the expanded configuration claim 1 , a cross-sectional area of the suction head transverse to the longitudinal axis decreases from a distal-most end of the suction head to a proximal end ...

Blood Clot Aspiration Catheter

A blood clot aspiration catheter includes an aspiration/flushing lumen having a distal portion that is insertable into a blood vessel of a patient, an aspiration device configured to create an aspiration phase to aspirate clot and blood into the aspiration/flushing lumen and a flushing phase to flush non-clotted blood from the aspiration/flushing lumen, a one-way valve configured to allow clot and blood to flow through the aspiration/flushing lumen during the aspiration phase and to block flow during the flushing phase, and filter valves configured to filter non-clotted blood to be flushed from the aspiration/flushing lumen. 1. A blood clot aspiration catheter comprising:an aspiration/flushing lumen having a distal portion that is insertable into a blood vessel of a patient,an aspiration device configured to create an aspiration phase to aspirate clot and blood into the aspiration/flushing lumen and a flushing phase to flush non-clotted blood from the aspiration/flushing lumen;a one-way valve configured to allow clot and blood to flow through the aspiration/flushing lumen during the aspiration phase and to block flow during the flushing phase; andfilter valves configured to filter non-clotted blood to be flushed from the aspiration/flushing lumen.2. The blood clot aspiration catheter of claim 1 , wherein the one-way valve is disposed at a distal end of the catheter.3. The blood clot aspiration catheter of claim 1 , wherein the filter valves comprise micro-valves disposed on a wall of the catheter towards a distal end thereof.4. The blood clot aspiration catheter of claim 3 , wherein the micro-valves comprise a valve portion and a filter portion.5. The blood clot aspiration catheter of claim 1 , wherein the filter valves comprise micropores disposed on a wall of the catheter towards a distal end thereof claim 1 , the micropores having a diameter ranging from 150 to 300 microns.6. The blood clot aspiration catheter of claim 1 , wherein the filter valves comprise slits ...

METHODS FOR ADVANCING INVERTING MECHANICAL THROMBECTOMY APPARATUSES IN THE VASCULATURE

Mechanical thrombectomy apparatuses (devices, systems, etc.) and methods for positioning them within a vessel and using them to remove a thrombus, e.g., clot, from within a vessel. In particular, described herein are methods of advancing an inverting tractor thrombectomy apparatus having a tractor comprising a flexible tube of material that inverts over itself as it rolls over a distal end opening of an elongate inversion support by extending the tractor region and/or a puller coupled to the tractor distally beyond the end of the catheter. Also described herein are power-driven mechanical thrombectomy apparatuses. 1. A method of removing a clot from a vessel using a mechanical thrombectomy apparatus including a catheter extending from a proximal end to a distal end , a puller extending distally within the catheter and a flexible and tubular tractor , wherein the tractor is coupled to a distal end region of the puller and further wherein the tractor is inverted over a distal end opening of the catheter so that the tractor extends proximally over the catheter , the method comprising:advancing the puller distally within the catheter and within the vessel towards a clot, so that the tractor extends from the puller distally beyond the distal end opening of the catheter, forming a gap between the tractor and the distal end opening of the catheter;advancing the catheter distally over the puller and into the gap;repeating the advance steps until the distal end opening of the catheter is adjacent to the clot; anddrawing the clot into the catheter with the tractor by pulling the tractor proximally within the catheter so that the tractor rolls and inverts over the distal end opening of the catheter.2. The method of claim 1 , wherein repeating further comprises comprising pulling the pusher proximally within the catheter to invert a portion of the tractor over the distal end opening of the catheter.3. The method of claim 1 , wherein drawing the clot into the catheter further ...

PRE-LOADED INVERTING TRACTOR THROMBECTOMY APPARATUSES AND METHODS

Mechanical thrombectomy apparatuses including an inverting, rolling conveyor region (“tractor”) at the distal end that are configured to grab and remove thrombus material. In particular, described herein are mechanical thrombectomy apparatuses that are adapted to prevent premature deployment of the tractor, e.g., by including a tractor hold (e.g., a housing, a lock, a clamp, etc.) or the like to secure the outer end of the tractor against and/or relative to the elongate inversion support. 1. A method of removing a clot using a mechanical thrombectomy apparatus , the method comprising:positioning a distal end of the mechanical thrombectomy apparatus adjacent to the clot within a vessel, wherein the mechanical thrombectomy apparatus includes a tractor region that extends along a distal region of a catheter and inverts over a distal end of the catheter so that a first end of the tractor extends proximally within the catheter;disengaging a second end of the tractor from a tractor hold that secures the second end of the tractor to an outer diameter of the catheter by applying a first force that is greater than a threshold force to the first end of the tractor;pulling the distal end of the tractor proximally within the catheter to roll the tractor over the distal end of the catheter so that the tractor inverts over the distal end of the catheter; anddrawing the clot into the catheter with the inverting tractor.2. The method of claim 1 , wherein disengaging the second end of the tractor from the tractor hold comprises disengaging the second end of the tractor from a tractor hold attached to an outer diameter of the catheter.3. The method of claim 1 , wherein disengaging the second end of the tractor from the tractor hold comprises disengaging the second end of the tractor from a tractor hold that extends proximally along the catheter for less than 10 cm.4. The method of claim 1 , wherein disengaging the second end of the tractor from the tractor hold comprises disengaging ...

Device for the Treatment of Tissue Calcification

Device for the treatment of tissue calcification, in particular aortic valve leaflets, characterized by the fact that it comprises a first ultrasound emission source that is adapted to provide ultrasound waves with MHz frequencies and a second ultrasound emission source that is adapted to provide ultrasound waves with KHz frequencies, both MHz and KHz waves being used for the said treatment. The invention also includes a method for the treatment of tissue calcification that is characterized by the simultaneous use of ultrasound waves with MHz frequencies and ultrasound waves with KHz frequencies.

ASPIRATION SYSTEMS AND METHODS, AND EXPANDING-MOUTH CATHETERS

In some examples, a catheter includes an expandable member configured to expand radially outward from a collapsed configuration to an expanded configuration. The expandable member is configured to be expanded and contracted in a controlled manner, e.g., in response to user actuation or automatically under the control of control circuitry of a device. For example, in some examples, control circuitry of a device can be configured to control the expandable member to expand and contract according to a predetermined expansion frequency or according to an expansion frequency determined based on a cardiac cycle of a patient.

Suction Tube with Blade

[Problem] To provide a medical device with which resection of tissue is possible in addition to collection of liquid. [Solution] A medical suction tube 1 includes a tubular body 3 and a connecting part 7 that connects the body 3 and a suction device 5. A blade 9 for resecting tissue is provided inside the distal-end area of the body 3.

APPARATUS AND METHOD FOR CUTTING TISSUE

A cutting instrument comprising: 1. A cutting instrument comprising:an outer tube comprising a distal end and a proximal end;an inner tube rotatably disposed within said outer tube, said inner tube comprising a distal end, a proximal end and a region intermediate said distal end and said proximal end, said region comprising a plurality of slits formed in said inner tube so as to render said region of said inner tube flexible; anda bellows disposed adjacent to said plurality of slits so as to render said region of said inner tube fluid-tight.2. A cutting instrument according to wherein said bellows is disposed about the exterior of said inner tube.3. A cutting instrument according to wherein said bellows comprises a distal end and a proximal end claim 1 , and further wherein said bellows is secured to said inner tube at said distal end of said bellows and said proximal end of said bellows.4. A cutting instrument according to wherein said bellows is disposed exterior to said inner tube and interior to said outer tube claim 1 , and further wherein the outer surface of said bellows is spaced from said outer tube so as to provide a passageway between said bellows and said outer tube.5. A cutting instrument according to wherein said bellows is disposed exterior to said inner tube and interior to said outer tube claim 1 , and further wherein the outer surface of said bellows contacts said outer tube.6. A cutting instrument according to wherein said outer surface of said bellows is relieved so as to provide a passageway between said bellows and said outer tube.7. A cutting instrument according to wherein said bellows is disposed exterior to said inner tube and interior to said outer tube claim 1 , and further wherein the bellows comprises a helical bellows so as to provide a helical passageway between said bellows and said outer tube.8. A cutting instrument according to further comprising a suction source connected to said proximal end of said inner tube.9. A cutting ...

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter having a flexible, distal luminal portion having an inner diameter defining a lumen extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator having a flexible, distal dilator portion sized to be received within the lumen of the luminal portion. Associated systems, devices, and methods of use are also described. 1. An intravascular access catheter for advancing a medical device for intraluminal medical procedures within the neurovasculature , comprising:a flexible elongate body having a proximal end, a distal end, and a lumen extending therebetween, the flexible elongate body comprising of a plurality of regions, wherein at least two of the plurality of regions of the flexible elongate body are comprised of unreinforced polymer;a first marker disposed at the distal end of the flexible elongate body; anda proximal extension extending proximally from the proximal end of the flexible elongate body, the proximal extension having a lumen communicating with the lumen of the flexible elongate body, wherein the proximal extension is formed of two or more different materials.2. The catheter of claim 1 , wherein the unreinforced polymer is Pebax.3. The catheter of claim 1 , wherein the plurality of regions of the flexible elongate body comprises three regions.4. The catheter of claim 3 , wherein the three regions comprise claim 3 , a proximal region claim 3 , an intermediate region claim 3 , and a tip region.5. The catheter of claim 4 , wherein a portion of the tip region of the flexible elongate body is shapeable by a user.6. The catheter of claim 4 , ...

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter having a flexible, distal luminal portion having an inner diameter defining a lumen extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator having a flexible, distal dilator portion sized to be received within the lumen of the luminal portion. Associated systems, devices, and methods of use are also described. 1. An intravascular access catheter for advancing a medical device for intraluminal medical procedures within the neurovasculature , comprising:a flexible elongate body having a proximal end, a distal end, and a lumen extending therebetween, wherein the flexible elongate body comprises a plurality of regions, wherein one of the plurality of regions is a tapered region;a first marker disposed at a distal end of the tapered region;a second marker disposed at a proximal end of the tapered region, wherein the tapered region comprises an unreinforced polymer; anda proximal extension extending proximally from the proximal end of the flexible elongate body, the proximal extension having a lumen communicating with the lumen of the flexible elongate body.2. The access catheter of claim 1 , wherein the proximal extension is formed of two or more different materials.3. The access catheter of claim 2 , wherein one of the two or more different materials of the proximal extension is metal.4. The access catheter of claim 3 , wherein a second material of the two or more different materials of the proximal extension is polymer.5. The access catheter of claim 2 , wherein the two or more materials are arranged coaxially.6. The access catheter of claim 5 , ...

CATHETER INCLUDING A BAMBOO STRUCTURAL SUPPORT MEMBER

In some examples, a catheter includes a structural support member including bamboo. For example, a catheter may include a bamboo coil and/or a bamboo braided member positioned between an inner liner and an outer jacket. The structural support member comprising bamboo may be configured to be biodegradable. 1. A catheter comprising:{'claim-text': ['an inner liner;', 'a structural support member comprising bamboo; and', 'an outer jacket, wherein the structural support member is positioned between the inner liner and the outer jacket.'], '#text': 'an elongated body comprising:'}2. The catheter of claim 1 , wherein the structural support member comprises a bamboo coil.3. The catheter of claim 1 , wherein the structural support member comprises a braid comprising one or more bamboo fibers or a combination of bamboo and silk fibers.4. The catheter of claim 1 , wherein the structural support member comprises one or more axially extending bamboo stiffening elements.5. The catheter of claim 1 , wherein at least one of the outer jacket or the inner liner comprises a biodegradable polymer.6. The catheter of claim 1 , wherein the elongated body comprises:a proximal portion comprising the inner liner, the structural support member comprising bamboo, and the outer jacket;a medial portion comprising the inner liner, the structural support member comprising bamboo, and the outer jacket; anda distal portion comprising the inner liner and the outer jacket, the medial portion being positioned between the proximal portion and the distal portion.7. The catheter of claim 6 , wherein the structural support member comprises a first structural support member claim 6 , and wherein the distal portion comprises a second structural support member comprising a material different from the first structural support member.8. The catheter of claim 1 , wherein the structural support member comprises a first structural support member claim 1 , and wherein the elongated body comprises:a proximal portion ...

Flue for Ultrasonic Aspiration Surgical Horn

A flue for use with an ultrasonic surgical tip, comprising protrusions or bumps on its inner surface with improved protrusion pattern, density and location. The flue has enhanced cooling effect for the ultrasonic surgical tip. 1. A flue for an ultrasonic surgical apparatus , comprising:an internal surface, wherein the internal surface includes an arcuate region and a plurality of protrusions, wherein the plurality of protrusions form a bridge that limits contact with the arcuate region of the internal surface of the flue, and wherein the plurality of protrusions are distributed in staggered rows and columns such that one protrusion is centered in relation to every four adjacent protrusions arranged in a substantially square or rectangular manner; anda first flue extender portion and a second flue extender portion extending distally from the first flue extender portion, and wherein the second flue extender portion has a higher density of the plurality of protrusions than the first flue extender portion.2. The flue of claim 1 , wherein the plurality of protrusions of the first flue extender portion form the bridge of the first flue extender portion both longitudinally and axially and the plurality of protrusions of the second flue extender portion form the bridge of the second flue extender portion both longitudinally and axially.3. The flue of claim 1 , wherein the plurality of protrusions are spherical protrusions.4. The flue of claim 3 , wherein the plurality of protrusions on the first flue extender portion have a spherical radius in the range of about 0.01 inches to about 0.10 inches and the plurality of protrusions on the second flue extender portion have a spherical radius in the range of about 0.01 inches to about 0.08 inches.5. The flue of claim 1 , in combination with an ultrasonic horn having an external surface claim 1 , wherein the flue is configured to be disposed about the external surface of the ultrasonic horn claim 1 , and wherein bridge formed by ...

Medical device and treatment method

A medical device for removing an object within a living body lumen includes a rotatable tubular driven shaft having a leading-out hole opening in a proximal portion of the driven shaft, a cutting unit disposed on a distal side of the driven shaft, the cutting unit cutting an object while rotating together with the driven shaft, and a suction tubular body having a distal portion and a proximal portion, the distal portion of the suction tubular body being located within the driven shaft, the proximal portion of the suction tubular body being located outside the driven shaft and extending in a direction of separating from the driven shaft outward in a radial direction of the driven shaft.

AXIAL LENGTHENING THROMBUS CAPTURE SYSTEM

Systems and methods can remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions. 119-. (canceled)20. A clot capture system , comprising:a shaft;a plurality of axially spaced-apart anchors comprising a reduced configuration and an expanded configuration, wherein the plurality of axially spaced-apart anchors extend radially outward from the shaft in the expanded configuration;a shape memory tubular body comprising a first end, a second end, and an axial length therebetween, the first end having an opening, wherein the shape memory tubular body is compressed in a compressed configuration,wherein the shape memory tubular body is transformable to a first expanded configuration in which the first end is expanded, wherein the second end and a portion of the shape memory tubular body is compressed in the first expanded configuration, wherein the shape memory tubular body has a first expanded axial length in the first expanded configuration,wherein the shape memory tubular body is transformable to a second expanded configuration in which the shape memory tubular body has a second expanded axial length greater than the first expanded axial length, wherein the shape memory tubular body circumscribes the plurality of axially spaced-apart anchors in the second expanded configuration.21. The clot capture system of claim 20 , wherein the plurality of axially spaced-apart anchors comprise three or more anchors.22. The clot capture system of claim 20 , wherein the plurality of axially spaced-apart anchors are coaxial.23. The clot capture system of claim 20 , wherein the plurality of axially spaced-apart anchors comprise nitinol.24. The clot capture system of claim 20 , wherein an anchor of the plurality of axially spaced-apart anchors forms an angle with an anchor pusher when expanded ...

ASPIRATION MONITORING SYSTEM AND METHOD

A system for real time monitoring of catheter aspiration includes a pressure sensor configured for placement in fluid communication with a lumen which at least partially includes an aspiration lumen of a catheter, the aspiration lumen configured to couple to a vacuum source, a measurement device coupled to the pressure sensor and configured for measuring deviations in fluid pressure, and a communication device coupled to the measurement device and configured to generate a continuous signal which is proportional to measured fluid pressure. 1. A system for real time monitoring of catheter aspiration , comprising:a pressure sensor configured for placement in fluid communication with a lumen which at least partially includes an aspiration lumen of a catheter, the aspiration lumen configured to couple to a vacuum source;a measurement device coupled to the pressure sensor and configured for measuring deviations in fluid pressure; anda communication device coupled to the measurement device and configured to generate a continuous signal which is proportional to measured fluid pressure.2. The system of claim 1 , wherein the continuous signal is provided by a visual source.3. The system of claim 1 , wherein the continuous signal is provided by an audible source.4. The system of claim 1 , wherein the continuous signal is provided by a tactile source.5. The system of claim 1 , wherein the continuous signal is provided by at least one of a light source claim 1 , an audio speaker claim 1 , a piezoelectric device claim 1 , a heater claim 1 , or a vibration device.6. The system of claim 1 , wherein an amplitude of the continuous signal is proportional to the measured fluid pressure.7. The system of claim 1 , wherein a frequency of the continuous signal is proportional to the measured fluid pressure.8. The system of claim 1 , wherein an amplitude of the continuous signal is proportional to the absolute value of the measured fluid pressure.9. The system of claim 1 , wherein a ...

LOADING DEVICE FOR LOADING A MEDICAL DEVICE INTO A CATHETER

A loading device for loading a medical device into a catheter is provided. The loading device comprises a body having a lumen to receive an expandable portion of a medical device. The lumen has a length as the expandable portion when the latter is in a collapsed configuration and has a diameter that is greater than the collapsed configuration. The body comprises a first portion and a second portion that are reversibly separable to expose the lumen in an open configuration and enclose the lumen in a closed configuration. The first and second portions each comprise an inner face having a groove defining a first portion of the lumen and a second portion of the lumen, respectively. The body also has a distal tip portion to reversibly couple with a hemostatic valve of a delivery catheter. A method of loading a medical device into a catheter is also provided. 1. A loading device for loading a medical device into a catheter , the medical device having a nonexpandable portion and an expandable portion , the latter having an expanded configuration and a collapsed configuration , the loading device comprising:a body having a lumen configured to receive the expandable portion of the medical device, the lumen having a length at least as long as the expandable portion of the medical device when the expandable portion is in the collapsed configuration, the lumen having a diameter that is greater than the collapsed configuration of the medical device, the body comprising a first portion and a second portion that are reversibly separable to expose the lumen in an open configuration and enclose the lumen in a closed configuration, the first portion comprising an inner face, and the second portion comprising an inner face, wherein the inner face of the first portion has a first groove that defines a first portion of the lumen and the inner face of the second portion has a second groove that defines a second portion of the lumen;wherein the body has a distal tip portion that is sized, ...

METHODS OF USE OF AN ANATOMIC STRUCTURE EXTRACTOR

An anatomic structure extractor allows a medical practitioner to retract, aspirate, ligate and amputate an anatomic structure within a patient through a minimally invasive incision. An anatomic structure extractor may include a transparent tubular member with a cap coupled to one end. The cap may have at least one view port with a magnifying lens. The cap may also have a needle port through which a needle is inserted to puncture the anatomic structure. A trap may be in fluid communication with the transparent tubular member. A suction post is in communication with the trap to pull the contents of an aspirated cyst into the trap. A light post containing a light source may be connected to the transparent tubular member to illuminate the interior of the extractor. A ligature deployer and a cutting wire may also be coupled to the tubular member. 1. A method of removing an anatomic structure from a patient comprising the steps of:inserting an anatomic structure extractor comprising a tubular member and a handle in fluid communication with the tubular member into a patient;coupling the anatomic structure extractor to an anatomic structure; andextracting the anatomic structure coupled to the anatomic structure extractor from the patient.2. The method of claim 1 , wherein the anatomic structure is a non-fluid-filled structure.3. The method of claim 1 , wherein the anatomic structure is a solid structure.4. The method of claim 1 , wherein the inserting step comprises a trans-vaginal insertion.5. The method of claim 1 , wherein the inserting step comprises a trans-cutaneous insertion.6. The method of claim 1 , wherein the inserting step comprises a trans-mucosal insertion.7. The method of claim 1 , wherein the coupling step comprises applying a vacuum to a suction post of the anatomic structure extractor.8. The method of claim 1 , wherein the coupling step comprises boring a corkscrew needle inserted through a needle port in the anatomic structure extractor into the anatomic ...

CAPTURE ASSEMBLY AND METHOD

This patent document discloses assemblies and methods for removing obstructive material from a body vessel or other cavity. An assembly can include an elongate inner member, an elongate outer member, an aspirator, one or more valves, and a waste collection reservoir. Each of the elongate members can extend from a proximal end portion to a distal end portion and can include a lumen therethrough. The elongate inner member can be partially disposed in the lumen of the elongate outer member and can be moveable along its longitudinal axis relative to the elongate outer member. The aspirator can be in flow communication with the proximal end portion of the elongate inner member for drawing the obstructive material into or through its lumen. The one or more valves can be configured and positioned to allow obstructive material removed from the body vessel or cavity to be urged toward the waste collection reservoir. 1. An assembly for removing obstructive material from a body vessel or cavity , comprising:an elongate outer member and an elongate inner member, each extending from a proximal end portion to a distal end portion and including a lumen therethrough,the elongate inner member partially disposed in the lumen of the elongate outer member and movable along its longitudinal axis relative to the elongate outer member;an aspirator in flow communication with the elongate inner member for drawing the obstructive material through the lumen of the elongate inner member; anda one-way valve in communication with the lumen of the elongate inner member and allowing flow in a distal-to-proximal direction toward the aspirator.2. The assembly of claim 1 , further comprising a second one-way valve allowing flow toward a waste collection reservoir.3. The assembly of claim 1 , wherein the aspirator includes a syringe barrel claim 1 , a plunger slidable in the syringe barrel claim 1 , and a resilient means claim 1 , the resilient means configured to urge the plunger toward a resting ...

METHOD FOR RESECTION OF TUMORS AND TISSUES

A surgical method of removing tissue of a patient includes grasping a surgical cutting instrument. The instrument includes an outer blade including a tubular body, an end cap, and a cutting window defined by an edge on at least the end cap, and an inner blade including a cutting tip, the inner blade co-axially disposed within the outer blade, the cutting tip including a cutting edge extending toward the end cap of the outer blade, wherein the cutting tip is rotatably exposed at the cutting window. The method further includes positioning the cutting window and cutting tip to a target site, supplying fluid through an irrigation pathway to the cutting window and the target site, rotating the cutting tip of the inner blade to selectively cut the tissue, and aspirating fluid and cut tissue. 1. A surgical method of removing tissue of a patient , comprising: 'an outer blade including a tubular body, an end cap, and a cutting window defined by an edge on at least the end cap, and an inner blade including a cutting tip, the inner blade co-axially disposed within the outer blade, the cutting tip including a cutting edge extending toward the end cap of the outer blade, wherein the cutting tip is rotatably exposed at the cutting window;', 'grasping a surgical cutting instrument, the instrument comprisingpositioning the cutting window and cutting tip to a target site;supplying fluid through an irrigation pathway to the cutting window and the target site;rotating the cutting tip of the inner blade to selectively cut the tissue; andaspirating fluid and cut tissue.2. The method of claim 1 , wherein end cutting surfaces of the cutting tip directly contact an inner surface of the end cap.3. The method of claim 1 , wherein rotating the cutting tip a single revolution exposes the tissue to at least three end cutting surfaces of the cutting tip.4. The method of claim 1 , wherein the cutting window is open at a side of the tubular body and the end cap.5. The method of claim 1 , wherein ...

CALCULUS/CALCULI RETRIEVING DEVICE AND METHOD

A method of retrieving calculus in a living body and relocating the calculus to a different location in the living body involves positioning an elongated member in the living body in which the calculus is located, drawing the calculus in the living body toward the elongated member while the elongated member is positioned in the living body so that the calculus is retained by the elongated member; moving the elongated member so that the elongated member is located at a position in the living body that is different from the position of the elongated member in the living body during the drawing of the calculus toward the elongated member; and releasing the calculus from the elongated member so that the calculus is at a position in the living body different from a location of the calculus in the living body while the calculus is being drawn toward the elongated member. 1. A device for retrieving calculus in a lumen of a living body comprising:a shaft;an elongated member sized to be positioned in the lumen of the living body, the elongated member including a suction head housing possessing a distal end, a proximal end and an interior, the distal end of the suction head housing being open to permit entry of calculus and the proximal end of the suction head housing being closed by a wall through which passes the shaft;a rotatable impeller positioned inside the elongated member;the shaft being connected to the rotatable impeller so that the shaft and the rotatable impeller rotate together as a unit, the shaft being connectable to a drive source that is operable to rotate the shaft and the rotatable impeller, with rotation of the rotatable impeller creating suction that draws calculus through the open distal end of the suction head housing and into the interior of the suction head housing;a shaft cover possessing a distal end portion that terminates in a distal end connected to the proximal end of the suction head housing so that the elongated member and the shaft cover ...

Arthroscopic devices and methods

A medical device includes an elongated sleeve having a longitudinal axis, a proximal end and a distal end. A cutting member having a plurality of sharp edges is formed from a wear-resistant ceramic material is carried at the distal end of the elongated sleeve. A motor drive is coupled to the proximal end of the elongated sleeve to rotate the sleeve at cutting member at high RPMs to cut bone and other hard tissue. An electrode is carried in a distal portion of ceramic cutting member for RF ablation of tissue when the sleeve and cutting member are is a stationary position. In methods of use, (i) the ceramic member can be engaged against bone and then rotated at high speed to cut bone tissue, and (ii) the ceramic member can be held in a stationary (non-rotating) position to engage tissue and RF energy can be delivered to the electrode to create a plasma that ablates tissue.

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter having a flexible, distal luminal portion having an inner diameter defining a lumen extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator having a flexible, distal dilator portion sized to be received within the lumen of the luminal portion. Associated systems, devices, and methods of use are also described. 1. A method of performing a medical procedure in a cerebral vessel of a patient , the method comprising: [ a flexible distal luminal portion having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end; and', 'a proximal elongate body that is less flexible than the flexible distal luminal portion and is configured to control movement of the catheter; and, 'a catheter comprising, a flexible elongate body having a proximal end region, a distal tip, a single lumen that communicates with a distal opening in fluid communication with the blood vessel, and an outer diameter, wherein the outer diameter of the flexible elongate body is between about 0.003″-about 0.010″ smaller than an inner diameter of the lumen of the flexible distal luminal portion of the catheter, and wherein the single lumen of the flexible elongate body extends longitudinally through the flexible elongate body to the distal opening; and', 'a proximal portion extending from the proximal end region of the flexible elongate body and extending proximally outside of the body of the patient, the proximal portion having a single lumen that communicates with the single lumen of the flexible elongate body;, 'a catheter advancement element ...

Devices, systems and methods to remove blood clots

Systems, devices and methods for removing a blood clot ( 10 ) from a blood vessel ( 12 ). Various uses of suction pressure and positive pressure, proximal and/or distal to the blood clot ( 10 ) assist with clot dislodgement and removal. The pressure(s) may be constant and/or cycled/pulsed to assist with clot dislodgement and/or removal. Various further devices assist with separating the clot ( 10 ) from the vessel ( 12 ).

Electrically enhanced retrieval of material from vessel lumens

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the thrombectomy system. The system can include a catheter having a distal portion configured to be positioned adjacent to a thrombus in a blood vessel, an electrode disposed at the distal portion of the catheter, and an interventional element configured to be delivered through a lumen of the catheter. The electrode and the interventional element are each configured to be electrically coupled to an extracorporeal power supply.

Navigable catheter distal tip configuration

In some examples, a catheter includes an elongated body extending between a proximal end and a distal end, and defining an inner lumen, an outer body wall having a wall cross-sectional diameter, and a distal aperture at the distal end. A distal portion of the elongated body including a taper section that tapers from the outer body wall of the distal portion to the distal aperture, with the distal portion defining a plurality of slits open to the distal aperture. The distal aperture has an aperture diameter greater than zero and less than the wall cross-sectional diameter. The distal portion defining the plurality of slits is configured to substantially center the distal end around a guide member when the guide member is introduced in the inner lumen and extends through the distal aperture.

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use. 1. A catheter system comprising:an access sheath comprising a tubular sheath body with a central lumen having an inner diameter, a proximal end and a distal opening,and a connector operably connected with the sheath body and attachable to a fluid source or aspiration source via the connector; anda catheter comprising a distal portion and a proximal tether extending proximally from a point of attachment between the proximal tether and the distal portion, wherein the distal portion has a single inner lumen, and wherein the catheter is configured to extend from a femoral access site to a carotid artery,wherein the catheter is configured to slide within the central lumen of the sheath body to change the relative position of the catheter within the central lumen and provide for at least a portion of the distal portion to extend outward from the distal opening of the sheath body such that an overlap region is formed between the catheter and the access sheath,wherein a fluid lumen is collectively formed by the single inner lumen of the catheter and the central lumen of the access sheath, andwherein a proximal end region of the catheter comprises an inclined surface flaring outward in a proximal direction, wherein the inclined surface is formed in a thickened portion of the catheter ...

Matter Conveyance System

A matter conveyance system is located within a catheter and transports thrombus from a proximal portion of the catheter to a distal end of the catheter. In one example, the matter conveyance system is a screw or helix that rotates to cause movement of the thrombus.

PERCUTANEOUS RETROGRADE THERAPY FOR PULMONARY EMBOLISM

The disclosed invention provides a closed loop catheter system for treatment of pulmonary embolism with balloon tipped catheter insertion devices. The system includes a first catheter insertion device configured to be positioned at proximal segment of a designated pulmonary vein and a second catheter insertion device configured to be positioned at proximal segment of a designated pulmonary artery. The first and second catheter insertion devices each include a sheath defining at least one lumen therein and at least one balloon that is connected to the distal end of the sheath. The at least one balloon seals ostium of the pulmonary vein or ostium of the pulmonary artery when inflated and the first catheter insertion device is in use. 1. A catheter system for pulmonary embolism with balloon tipped catheter insertion devices , comprising: a sheath that defines at least one lumen therein and has a distal end that is configured to be positioned at proximal segment of a designated pulmonary vein and a proximal end that is external to the patient; and', 'at least one balloon that is positioned at the distal end of the sheath, wherein the at least one balloon is configured to seal ostium of the designated pulmonary vein when inflated; and, 'a first catheter insertion device configured to be suitable for facilitating precise and safe cannulation of pulmonary veins, wherein the first catheter insertion device is configured to be connected to an infuser to supply fluid to the pulmonary veins, the first catheter insertion device comprising a sheath that defines at least one lumen therein and has a distal end that is configured to be positioned at proximal segment of a designated pulmonary artery and a proximal end that is external to the patient; and', 'at least one balloon that is positioned at the distal end of the sheath, wherein the at least one balloon is configured to seal the designated pulmonary artery when inflated., 'a second catheter insertion device configured to be ...

Rotating frame thrombectomy device

A device for removing a clot from a vessel can have dual layers where an inner expandable body runs within an outer expandable body. The device can have a collapsed delivery configuration, an expanded deployed configuration, and a clot pinching configuration. The inner and outer bodies can be a plurality of cells formed by a network of struts. The openings of the cells align when the device is deployed within the clot, where the radial force from the expanding bodies urges portions of the clot through the openings. The inner and outer bodies can be configured to be selectively translatable relative to each other, so that the portions of the clot in the cell openings can be compressed and gripped when the translation transitions the device to the clot pinching configuration. The translation can be maintained to pinch the clot as it is retrieved from the patient.

SELF-ROLLING THROMBECTOMY APPARATUSES AND METHODS

Self-rolling mechanical atherectomy aka thrombectomy apparatuses for removing a clot from a vessel include a tractor tube portion that rolls and inverts over itself in a continuous motion, tractor-like, to draw material into the tractor tube, wherein the tractor tube rolls over itself without requiring any additional internal support at the distal-facing region of the tractor tube. 1. A self-rolling mechanical atherectomy apparatus for removing a clot from a vessel , comprising:an outer tractor pusher comprising a catheter having a distal end and a distal end opening;a tractor tube comprising an outer tractor tube portion that extends distally in an un-inverted configuration and inverts into itself at a distal-facing region to form an inner tractor tube portion, wherein the tractor tube is configured such that pulling the inner tractor tube portion proximally (i) compresses the outer tractor tube portion into a configuration having a column strength that resists collapsing, and (ii) causes a region of the outer tractor tube portion at the distal-facing region to roll over itself, unsupported, and invert into the inner tractor tube portion; andan inner tractor puller coupled to the inner tractor tube portion and extending proximally within the outer tractor pusher.2. The apparatus of claim 1 , wherein the outer tractor pusher is coupled to a proximal end of the outer tractor tube portion of the tractor tube.3. The apparatus of claim 1 , further comprising a distal access catheter claim 1 , wherein the outer tractor pusher claim 1 , the tractor tube claim 1 , and inner tractor puller are held within the distal access catheter in an un-deployed configuration claim 1 , and wherein the tractor tube is configured to be deployed by being pushed distally out of the distal access catheter so that the outer tractor tube portion expands to a diameter that is greater than an outer diameter of the distal access catheter in a deployed configuration.4. The apparatus of claim 1 , ...

CLOT RETRIEVAL DEVICE FOR REMOVING CLOT FROM A BLOOD VESSEL

A clot removal device for removing clot from a body vessel comprises an expandable structure and an elongate member. The expandable structure has a constrained delivery configuration, an expanded clot engaging deployed configuration, and an at least partially constrained clot pinching configuration. At least a portion of the expandable structure is configured to engage clot in the expanded deployed configuration and to pinch clot on movement from the deployed configuration to the clot capture configuration. The expandable structure may comprise a main body portion and a clot pinching structure and a diameter of the clot pinching structure is less than a diameter of the main body portion. The clot pinching structure may be substantially tubular and of spiral form. 1. A clot removal device for removing clot from a body vessel comprising an expandable structure and an elongate member ,the elongate member having a proximal end and a distal end, the elongate member being connected to the expandable structure at its distal end,the expandable structure having a constrained delivery configuration, an expanded clot engaging deployed configuration, and an at least partially constrained clot pinching configuration,at least a portion of the expandable structure being configured to engage clot in the expanded deployed configuration and to pinch clot on movement from the deployed configuration to the clot pinching configuration.2. A clot removal device as claimed in wherein the expandable structure comprises a clot pinching structure which is configured to pinch clot on movement from the deployed configuration to the clot pinching configuration.3. A clot removal device as claimed in wherein the expandable structure comprises a main body portion and a clot pinching structure and wherein a diameter of the clot pinching structure is less than a diameter of the main body portion.4. A clot removal device as claimed in wherein the clot pinching structure is substantially tubular.5. A ...

SYSTEM AND METHODS FOR ACCESSING AND TREATING CEREBRAL VENOUS SINUS THROMBOSIS

The invention relates to systems and methods for intracranial venous vessel access and a system for treatment of dural sinus thrombosis. In particular, a system including a co-axial combination of a steerable variable thickness microwire operatively supporting a tapered larger bore support and larger bore distal access catheter is described. Methods of advancing the intracranial access system through the venous vasculature are also described. 1. A catheter system for accessing the cerebral venous system from the femoral vein or jugular vein comprising:an outer catheter (OC) having an OC distal end having an OC distal end inner diameter (ID);an inner catheter (IC) having an IC distal tip end, an IC proximal end and an IC expanded section adjacent the IC distal tip end, the IC expanded section having a distal taper, a proximal taper and an outer diameter (OD), the OD substantially corresponding to the ID of the OC distal end ID, the expanded section for supporting the OC distal end during catheter placement within the cerebral venous vessels wherein the IC expanded section has a length sufficient to enable telescopic movement of the OC and IC relative to one another to enable successive advancement of the OC and IC within the cerebral venous vessels without causing separation of the OC distal end from the IC expanded section and wherein the IC expanded section and OC collectively have sufficient flexibility to progress through the cerebral venous vessels and sufficient stiffness to prevent separation of the OC distal end from the IC expanded section2. The catheter system as in where the IC is a bi-axial system where the IC distal tip end is an independently moveable microwire (MW) having a MW distal tip end and a MW proximal end telescopically engaged within the IC expanded section and wherein the MW and IC are independently moveable with respect to one another from outside the body.3. The catheter system as in where the OC is a bi-axial system including:a first OC ...

Devices and methods for removal of acute blockages from blood vessels

An aspiration catheter including an elongate body and an expansile distal tip continuous with the elongate body. An expanding assembly is alignable internal to the expansile distal tip and connected proximally to a control wire. The expanding assembly includes a proximal position within the expansile distal tip proximal of a distal most end of the expansile distal tip. In a distal position where the expanding assembly is distally moved, by the control wire, until being aligned with and contacting the distal most end of the expansile distal tip causing the expansile distal tip to form a funnel mouth to receive clot.

Aspiration Thrombectomy Catheter System, And Associated Methods

An aspiration thrombectomy catheter system includes an aspirator and an aspiration catheter for insertion in a blood vessel. The catheter has a shaft with a proximal end for connection with the aspirator and a tapering distal end with a tip for insertion in the vessel. A plurality of aspiration ports are arranged in sets along the tapering distal end, for aspirating thrombus from the vessel. At least one aspiration lumens within the shaft conducts thrombus from the vessel, through the aspiration ports, to the aspirator. Variably sized or shaped ports provide differing aspiration vectors for enhanced thrombus removal. The aspiration thrombectomy catheter additionally provides for uniform drug dispersion at a thrombotic area, alone or in combination with aspiration of the thrombus. In the event of an adverse reaction, drug dosage may be easily reduced by aspirating dispersed drugs back into the catheter.

Catheter for extraction of foreign substance from blood vessel

Disclosed is a catheter for the extraction of foreign substances from blood vessels including an insertion tube configured to be inserted into a blood vessel and provided at one side thereof with a branched suction tube, a moving crusher configured to be inserted into the blood vessel while being received inside the insertion tube, the moving crusher serving to crush foreign substances inside the blood vessel after being discharged out of the insertion tube, and a foreign substance moving net coupled to a front end of the moving crusher so as to guide the crushed foreign substances into the insertion tube, the foreign substance moving net having a mesh shape. The foreign substance moving net includes an introduction net having an open front end to allow the foreign substances to be introduced thereinto, a flow net connected to the introduction net and configured to provide a passage for movement of the foreign substances, and a discharge net configured to couple the flow net and the moving crusher to each other and to discharge the foreign substances into the insertion tube, and the flow net is provided at a surface thereof with a coating layer to prevent the foreign substances from being discharged out of the flow net.

METHOD AND DEVICE FOR INFUSION OF PHARMACOLOGIC AGENTS AND THROMBUS ASPIRATION IN ARTERY

A catheter device and method for treating an artery with thrombus, the catheter comprising an inflatable member. A carrier catheter has a proximal end and a distal end adapted to be inserted percutaneously into an artery, the carrier catheter having a tubular body adjacent to a rear end of the inflatable member. An inflating tube passes through the tubular body and having an open front end in fluid communication with the inflatable member to inflate same. An infusion tube is adapted to infuse pharmacologic agents, the infusion tube passing through the tubular body and having an open front end extending beyond the inflatable member. An aspiration tube is adapted to aspire the thrombus, the aspiration tube passing through the tubular body and having an open front end between the carrier catheter and the inflatable member. 1. A method for treating an artery having a thrombus comprising: percutaneously positioning a catheter with an infusion tube in the artery proximally to the thrombus; passing a tip of the infusion tube through the thrombus; and infusing at least one pharmacologic agent distally to the thrombus via the infusion tube.2. The method according to claim 1 , wherein positioning the catheter comprises positioning an inflatable member of the catheter proximally to the thrombus claim 1 , and further comprising inflating the inflatable member proximally to the thrombus.3. The method according to claim 2 , wherein inflating the inflatable member proximally to the thrombus is performed prior to infusing at least one pharmacologic agent distally to the thrombus.4. The method according to claim 1 , wherein positioning the catheter further comprises positioning an aspiration tube of the catheter proximally to the thrombus claim 1 , the aspiration tube being proximal to the inflatable member.5. The method according to claim 4 , further comprising performing an aspiration via the aspiration tube while deflating the inflatable member to aspire the thrombus.6. The ...

Suction catheter systems for applying effective aspiration in remote vessels, especially cerebral arteries

A suction catheter system is described with a suction extension interfaced with a guide catheter to form a continuous suction lumen extending through a portion of the guide catheter and through the suction extension. The suction extension can be positioned by tracking the suction nozzle through a vessel while moving a proximal portion of the suction extension within the lumen of the guide catheter. The suction extension can comprise a connecting section with a non-circular cross section for interfacing with the inner lumen of an engagement section of the guide catheter. The tubular body of the guide catheter can have a reduced diameter distal section the can be useful to restrain the movement of the suction extension. Proximal fittings attached to the guide catheter can facilitate safe removal of the catheter system from the patient by allowing for the removal of some or all of a tubular extension of the suction extension from the guide catheter behind a hemostatic seal. Pressure sensors connected to the proximal fittings can help to guide the procedures with reduced risk of embolizing thrombus.

APPARATUS, SYSTEM, AND METHOD FOR VASCULATURE OBSTRUCTION REMOVAL

An obstruction removal device is configured to be inserted through a catheter and at least partially extended into a vasculature from a distal end of the catheter. The obstruction removal device includes: a base member configured to engage one or more guide stops at the distal end of the catheter; a tubular member coupled to the base member and configured to apply a suction force from the catheter to an obstruction to remove the obstruction from the vasculature; and an expandable member surrounding the tubular member. The expandable member is configured to transition from a contracted state to an expanded state after the expandable member is at least partially extended into the vasculature from the distal end of the catheter. The expandable member is further configured to at least partially surround the obstruction as the obstruction is being removed from the vasculature. 1. An obstruction removal system , comprising:a catheter configured to be inserted into a vasculature; and a tubular member configured to apply a suction force from the catheter to an obstruction to remove the obstruction from the vasculature after the tubular member is at least partially extended from the distal end of the catheter; and', 'an expandable member surrounding the tubular member, the expandable member being configured to transition from a contracted state to an expanded state after the expandable member is at least partially extended into the vasculature from the distal end of the catheter, the expandable member being further configured to at least partially surround the obstruction as the obstruction is being removed from the vasculature, wherein a proximal portion of the expandable member is configured to fold over the distal end of the catheter in order to prevent the expandable member from being suctioned into the catheter., 'an obstruction removal device configured to be inserted through the catheter and at least partially extended into the vasculature from the distal end of the ...

Anti-clogging during calculi evacuation

A lithotripsy system can include a lithotripsy device and controller circuitry. The device for acoustic calculi fracture can include an acoustic treatment probe for providing acoustic energy along the probe to treat one or more calculi and an evacuation pathway extending at least partially via the prob, for removing at least a portion of the one or more calculi via the evacuation pathway. The controller circuitry, coupled to the lithotripsy device, can be configured to receive an indication of clogging of the evacuation pathway and at least one of initiate or adjust a anti-clogging mode for changing at least one characteristic of evacuation via the evacuation pathway in response to the received indication of clogging.

MEDICAL DEVICE AND MEDICAL DEVICE ASSEMBLY

A medical device for collecting a solid object together with a fluid in a living body, including: a cylindrical member having an inner cavity, a suction port provided on the distal end of the inner cavity, and a discharge port on a side wall and communicating with the inner cavity; an impeller in the inner cavity configured to carry the fluid from the suction port to the discharge port; and a filter in the inner cavity configured to collect the solid object. At least part of the wall surface of the cylindrical member, which defines a flow channel allowing movement of the fluid from the impeller to the discharge port, is inclined from a center axis of the cylindrical member toward a distal end with respect to a transverse direction of the cylindrical member. 1. A medical device for collecting a solid object in a living body together with a fluid in the living body , the medical device comprising:a cylindrical member possessing a center axis, an inner wall surface that defines a flow channel, and a side wall, the cylindrical member having an inner cavity possessing a distal end and a proximal end, a suction port on the distal end of the inner cavity, and a discharge port in the side wall configured to communicate with the inner cavity;an impeller in the inner cavity configured to carry the fluid from the suction port to the discharge port;a filter in the inner cavity configured to collect the solid object; andat least part of the inner wall surface, which defines the flow channel allowing a movement of the fluid from the impeller to the discharge port, is inclined from the center axis of the cylindrical member toward the distal end with respect to a transverse direction of the cylindrical member so that the part of the inner wall surface forms an acute angle with the center axis of the cylindrical member.2. The medical device according to claim 1 , whereinthe cylindrical member includes a proximal wall portion traversing the inner cavity proximally of a proximal end ...

DEVICES AND METHODS FOR APPLYING SUCTION

A medical retrieval device may include a member extending longitudinally between a proximal end and a distal end. The member may include at least one lumen configured to be fluidly coupled to a vacuum source and to receive a medical tool therethrough. The member may be configured to transition between a compressed configuration and an expanded configuration, wherein in the expanded configuration, the distal end may have a larger cross-sectional area than the proximal end. 1. A medical retrieval device , comprising:a member extending longitudinally between a proximal end and a distal end, the member including at least one lumen configured to be fluidly coupled to a vacuum source and to receive a medical tool therethrough;wherein the member is configured to transition between a compressed configuration and an expanded configuration, wherein in the expanded configuration, the distal end has a larger cross-sectional area than the proximal end, wherein the member is trumpet shaped.2. The medical retrieval device of claim 1 , wherein the member includes a braided material.3. The medical retrieval device of claim 1 , wherein the member includes a transition portion between the proximal end and the distal end claim 1 , wherein the transition portion defines a sloping or arcuate portion having a degree of sloping or curvature between 45° and 60°.4. The medical retrieval device of claim 1 , wherein the member comprises one or more of plastic claim 1 , rubber claim 1 , and polyurethane claim 1 , Pebax claim 1 , PTFE claim 1 , stainless steel claim 1 , and a metal alloy.5. The medical retrieval device of claim 1 , wherein the at least one lumen includes a first lumen claim 1 , the first lumen extends along a central longitudinal axis of the member claim 1 , and the first lumen is configured to be fluidly coupled to the vacuum source.6. The medical retrieval device of claim 5 , wherein the at least one lumen includes at least one second lumen claim 5 , the at least one second ...

Calculus retrieving/removing device and method

A device for retrieving calculus in a lumen of a living body includes an elongated member positionable in the living body lumen and including an inlet, an outlet and a retrieval space between the inlet and the outlet, and a sealing member movably positioned in the lumen of the elongated member to axially move in distal and proximal directions, wherein the sealing member is in sealing contact with the inner surface of the lumen in the elongated member. A plunger is connected to the sealing member and includes two parts separated from one another to form a divided sealing member when the plunger is moved in the distal direction and that directly contact one another to form an integrated sealing member when the plunger is moved in the proximal direction to draw fluid and the calculus into the retrieval space.

Mechanical thrombectomy apparatuses and methods

Methods and apparatuses for mechanically removing objects from a body. In particular, described herein are thrombectomy methods and mechanical thrombectomy apparatuses for removal of blood clots from within a lumen of a blood vessel.

AXIAL LENGTHENING THROMBUS CAPTURE SYSTEM

Disclosed herein are systems and methods to remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions. 120-. (canceled)21. A clot capture system , comprising:a first tubular member comprising a central lumen;a second tubular member; anda shape memory tubular body comprising a first end, a second end, and an axial length therebetween, the first end having an end opening, the second end attached to the second tubular member,wherein at least part of the shape memory tubular body is compressed within the central lumen of the first tubular shaft in a first delivery configuration,wherein the shape memory tubular body is transformable to a second configuration in which the first end is radially expanded while the second end and a majority of the shape memory tubular body remains radially compressed within the central lumen of the first tubular shaft and the second end is positioned proximal to the first end and the shape memory tubular body has a first expanded axial length,wherein the shape memory tubular body is transformable to a third configuration via movement of the first tubular shaft with respect to the second tubular shaft in which the shape memory tubular body has a second expanded axial length greater than the first expanded axial length, wherein a width of the shape memory tubular body along its second expanded axial length is substantially the same as a width of the shape memory tubular body along its first expanded axial length.22. The clot capture system of claim 21 , further comprising a capture guide attached to the first end opening.23. The clot capture system of claim 21 , wherein the capture guide at least partially circumscribes the first end opening.24. The clot capture system of claim 21 , wherein the capture guide fully partially circumscribes the first end ...