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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2704. Отображено 100.
15-03-2012 дата публикации

Expandable tip assembly for thrombus management

Номер: US20120065660A1
Автор: Andrew H. Cragg, David A. Ferrera, John Fulkerson
Принадлежит: Mindframe LLC

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 include 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, maceration, and/or removal.

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Номер записи: 1
07-06-2012 дата публикации

Devices and Methods for Removing Clots

Номер: US20120143239A1
Автор: Lishan Aklog, Michael Glennon
Принадлежит: Vortex Medical Inc

A device for capturing a clot is provided. The device can include an inflatable body, a network of veins incorporated thereinto, and a wall defining the inflatable body. The inflatable body can include a pathway substantially axial therethrough upon inflation. The network of veins, upon introduction of a fluid thereinto, can inflate the inflatable body to a predetermined shape. The wall can extend between adjacent veins to define the pathway through the inflatable body and to direct the clot therethrough.

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Номер записи: 2
05-07-2012 дата публикации

Method of Accessing the Left Common Carotid Artery

Номер: US20120172918A1
Автор: Antony J. Fields, Daniel W. Fifer, Michael Lee, Randall T. Lashinski
Принадлежит: Claret Medical Inc

Single filter and multi-filter endolumenal methods and systems for filtering fluids within the body. In some embodiments a blood filtering system captures and removes particulates dislodged or generated during a surgical procedure and circulating in a patient's vasculature. In some embodiments a filter system protects the cerebral vasculature during a cardiac valve repair or replacement procedure.

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Номер записи: 3
02-08-2012 дата публикации

Apparatus and methods for treating obstructions within body lumens

Номер: US20120197193A1
Автор: Gwendolyn Watanabe, Jeffrey A. Krolik, Juan Domingo, Lucas Fernandez, Ray Betelia
Принадлежит: Hotspur Technologies LLC

Apparatus and methods are provided for delivering fluid into a body lumen during a medical procedure. A distal end of an apparatus may be introduced into a body lumen, and a valve on the distal end may be opened to deliver fluid through a first lumen into the body lumen, e.g., contrast and/or other diagnostic or therapeutic agents. The valve may be closed, and a procedure may be performed within the body lumen, e.g., using a treatment element carried on the distal end. For example, the treatment element may include a balloon that may be inflated when fluid is delivered through the first lumen with the valve closed. Optionally, a prosthesis, energy source, drug platform, and the like may be carried by the balloon for treating the body lumen. In various embodiments, the valve may be located proximal or distal to the treatment element.

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Номер записи: 4
13-09-2012 дата публикации

Cutting balloon assembly and method of manufacturing thereof

Номер: US20120232638A1
Автор: Chaim Lotan, Haim Danenberg, Nadezda Yasko, Valery Diamant
Принадлежит: Cardioniti Ltd

A method for fabrication of a cutting balloon assembly is described. The method includes providing a predetermined number of filaments having predetermined properties, diameter and length and fabricating a scoring mesh on a weaving jig having a plurality of pins disposed circumferentially about the jig's surface. The fabrication of the scoring mesh includes placing the filaments between the pins and interlacing the filaments to form a scoring mesh by interweaving and intertwining at least a part of filament to form one or more permanent links with neighboring filaments. The fabrication of the scoring mesh also includes forming distal and proximal filament loops that protrude from the mesh distal and proximal ends, respectfully. The scoring mesh is mounted on an expandable balloon mounted on a distal end of a delivery catheter.

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Номер записи: 5
01-11-2012 дата публикации

Balloon Resection Method

Номер: US20120277578A1
Автор: Erhan H. Gunday, Lawrence J. Gerrans
Принадлежит: Sanovas Inc

A balloon resection method is disclosed generally comprising inserting a catheter with at least one balloon having an outer wall with a resecting, non-slip surface for resecting unwanted biological material, such as tissues or tumors, and supplying fluid thereto in pulsed fashion to repeatedly deflate and inflate the balloon. In certain embodiments, a pump controls the pulsed supply of fluid based on an established frequency or change in volume. In some embodiments, the a keyed connector is used to identify the balloon type, and in some cases, intra-lumen diameters and densities are calculated. In some embodiments, the balloon portion of the catheter includes multiple balloon segments, which in some cases, are inflatable separately from one another.

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Номер записи: 6
18-04-2013 дата публикации

METHOD AND DEVICE FO EXTRACTING OBJECTS FROM THE BODY

Номер: US20130096571A1
Автор: Massicott Peter J., Massicotte J. Mathieu
Принадлежит:

A device for extracting (or inserting) objects from the body, such as urinary stones, using a low pressure inflatable toroidal balloon that serves to engulf the object during extraction (or insertion) while dilating and protecting the passageway. The balloon loads onto an ureteroscope prior to insertion, rather than through the ureteroscope as do existing balloons. The toroidal balloon is a simple and unique device that may be applied external to the extracting telescope and does not interfere with existing methods for stone manipulation such as laser lithotripsy, irrigation and basket extraction in the case of urinary stone manipulation. 1. An apparatus used to remove a unwanted object comprising:a guide; an internal balloon surface of said toroidal balloon contacting a unwanted object;', 'an external balloon surface of said toroidal balloon configured for contacting a biological wall;, "an expandable toroidal balloon pre-rolled and only attached to a distal end of said guide's external surface and is not attached to any other point of said guide, said toroidal balloon unrolled over a length of said guide such that said toroidal balloon's surface is displaced along longitudinal length and an external surface of said guide and such that said toroidal balloon is disposed external to said guide, said expandable toroidal balloon comprising:"}said expandable toroidal balloon draws a unwanted object via an inversion of said internal balloon surface and external balloon surface, with said inversion safely guiding removal of said unwanted object without sliding of said external balloon surface against any contacted biological wall, but by allowing low friction extraction by sliding of said internal balloon surface of said toroidal balloon.2. An expandable toroidal balloon as per claim 1 , wherein said toroidal balloon is externally attached to a scope.3. An expandable toroidal balloon as per claim 1 , wherein said toroidal balloon is externally attached to a medical ...

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Номер записи: 7
09-05-2013 дата публикации

Flexible Vacuum Grabber for Holding Lesions

Номер: US20130116702A1
Автор: HAMILTON Peter
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

A grabbing device includes a transparent flexible cup that can be placed adjacent to a selected region of an inner surface of a body cavity. The flexible cup is visually put in place by the surgeon, and a vacuum is applied to draw a selected amount of tissue into the flexible cup, so that it may, e.g., be excised. The device may also retrieve the tissue excised from the body cavity. 122-. (canceled)23. A vacuum grabber device for insertion into a body via an insertion device , comprising:a hollow elongated rod extending from a proximal end accessible to a user to a distal end having a flexible cup attached thereto, the flexible cup being movable between a first folded configuration in which an outer profile of the flexible cup is smaller than a working channel extending through the insertion device and a second deployed configuration in which an outer profile of the flexible cup is greater than the working channel, the flexible cup configured to move from the first configuration to the second configuration upon deployment from an opening in the working channel, wherein the flexible cup moves from the first configuration to the second configuration due to a resilience of at least one of the flexible cup and a plurality of ribs associated with the cup.24. The vacuum grabber device of claim 23 , wherein the flexible cup is formed of a resilient elastic material biased to a funnel shape.25. The vacuum grabber device of claim 23 , wherein the flexible cup is biased to the second deployed configuration.26. The vacuum grabber device of claim 23 , wherein the plurality of resilient ribs are distributed over the flexible cup and force the flexible cup from the first configuration to the second configuration.27. The vacuum grabber device of claim 26 , wherein the ribs are one of embedded within claim 26 , positioned within and positioned outside of the flexible cup.28. The vacuum grabber device of claim 26 , wherein the ribs are one of planar and spiral.29. The vacuum grabber ...

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Номер записи: 8
16-05-2013 дата публикации

SINGLE HAND SEMI-AUTOMATIC TISSUE MORCELLATOR

Номер: US20130123797A1
Автор: Livneh Steve
Принадлежит:

A morcellator is described which may be operated with one hand, thus providing semi-automatic functionality, for the reduction of solid tissue into smaller pieces, which may then transported and emptied into a specimen bag. The morcellator eliminates the need for stand-alone grasping forceps that are currently used to grasp and pull the tissue against a sharp rotating tubular conduit. The grasping, cutting and transporting of the tissue may be accomplished via the handheld morcellator which provides triggers and control buttons, thus eliminating conventional handheld graspers and foot switches. The surgeon can now hold the scope and visualize the morcellation arena, thus eliminating the need for a second surgeon presently used for this purpose. Moreover, the ability to perform morcellation single handedly, while holding the scope, improves control and avoids wasted time compared to the procedure when it is done by two surgeons. 1. A morcellator system for morcellating tissue , comprising:a conduit member including an end portion having a cutting surface formed thereon, wherein the conduit member includes an area defining a through bore extending therethrough;a jaw assembly including a pair of pivotable jaw members, wherein at least a portion of the jaw assembly is positioned proximate to the end portion of the conduit member; andan auger assembly at least partially received in the through bore of the conduit member, wherein at least a portion of the auger assembly is positioned proximate to the end portion of the conduit member.2. The morcellator system according to claim 1 , further comprising a first actuation system selectively operable to cause the jaw assembly to extend distally away from the end portion of the conduit member.3. The morcellator system according to claim 2 , further comprising a second actuation system selectively operable to cause the jaw members to pivot to an open position.4. The morcellator system according to claim 3 , further comprising a ...

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Номер записи: 9
22-08-2013 дата публикации

Specimen retrieval apparatus

Номер: US20130218170A1
Автор: Anthony Ceniccola, Margaret Uznanski
Принадлежит: COVIDIEN LP

A specimen retrieval apparatus includes an elongated tubular member defining a lumen therethrough and having an end effector disposed at a distal end thereof. The end effector includes a shaft defining a longitudinal axis, the shaft including a lumen extending therethrough. The lumen of the shaft communicates with the lumen of the elongated tubular member. A suction member is disposed at a distal end of the shaft in communication with the lumen of the shaft. The suction member is configured to retain a tissue specimen thereon. A sleeve is disposed about the shaft and is movable with respect to the shaft from a proximal to a distal position. A specimen retrieval bag is coupled to the sleeve. The bag is deployable from an undeployed position wherein the bag is disposed about the sleeve to an extended position wherein the bag is deployed over the tissue specimen.

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Номер записи: 10
29-08-2013 дата публикации

INVERSIBLE TUBULAR MEMBER AND A GRIPPING DEVICE INCLUDING SUCH A MEMBER

Номер: US20130226196A1
Автор: Smith James
Принадлежит: ENDOGROWTH (PROPRIETARY) LIMITED

This invention relates to a gripping device (), e.g. a surgical retrieval device. The device includes an inversible tubular member (), which is composed of interengaged stitches of resiliently flexible filamentary material and which is progressively transformable between an everted condition and an inverted condition. The device includes also actuation means () carrying the inversible tubular member and operable for effecting progressive inversion and eversion of the inversible tubular member. Through progressive inversion of the inversible tubular member, an object can be gripped thereby. 1. A gripping device comprising:an inversible tubular member which is substantially round in cross-section and progressively transformable between an everted condition and an inverted condition, with a transformation end being defined intermediate an everted length and an inverted length of the inversible tubular member during such transformation and with the inverted length and the everted length defining opposite to the transformation end respectively an inverted end and an everted end of the inversible tubular member,wherein inversible tubular member is composed of interengaged knitted stitches of resiliently flexible filamentary material; andactuation means carrying the inversible tubular member and operable for effecting progressive inversion and eversion of the inversible tubular member at the transformation end, with such inversion providing for gripping an object in the inversible tubular member.2. A gripping device as claimed in claim 1 , wherein the stitches are plaited stitches and are knitted to form circumferential rows arranged in a helix pattern.345-. (canceled)46. A gripping device as claimed in claim 1 , further comprising a membrane over at least a part of a surface of the inversible tubular member which is an outer surface in the everted condition.47. A gripping device as claimed in claim 1 , further comprising a membrane over at least a part of a surface of the ...

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Номер записи: 11
26-09-2013 дата публикации

SYSTEMS, METHODS AND DEVICES FOR REMOVING OBSTRUCTIONS FROM A BLOOD VESSEL

Номер: US20130253569A1
Автор: Fung Norman, Miller John, Ngo Tiffany T., Nguyen Dan, Pierce Ryan, Sepetka Ivan, Vu Emily
Принадлежит: Concentric Medical, Inc.

Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction. 131-. (canceled)32. An obstruction removing device , comprising:an obstruction removing element which is movable from a collapsed position to an expanded position, the obstruction removing element having a wire which has a distal end coupled to an insertion element, the wire also having a proximal end which is slidable on the insertion element.33. The device of claim 32 , wherein:the insertion element has a stop, the stop preventing distal advancement of the proximal end of the wire.34. The device of claim 32 , wherein:the obstruction removing element has a proximal end which is slidable on the insertion element and a distal end which is pivotable on the insertion element.35. A method of removing an obstruction from a blood vessel claim 32 , comprising the steps of:providing an obstruction removing element which is movable from a collapsed position to an expanded position;positioning the obstruction removing element in a catheter with the obstruction removing element in the collapsed position;advancing the catheter through the obstruction;moving a distal end of the obstruction engaging element out of the catheter after the advancing step so that the obstruction removing element expands distal to the obstruction, wherein at least part of the obstruction engaging element proximal to the distal end expands within the obstruction; andremoving the obstruction by moving the obstruction engaging element after the advancing step.36. The method of claim 35 , wherein:the moving step is carried out with a proximal end of the obstruction engaging element expanding on a side of the obstruction opposite the distal end so that the obstruction is trapped between the expanded proximal and distal ends.37. The method of claim 35 , wherein:the ...

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Номер записи: 12
17-10-2013 дата публикации

Surgical tissue collection bag

Номер: US20130274758A1
Автор: John I. Shipp, Wayne P. Young
Принадлежит: Apollo Camera LLC, Surgicon Inc

An improved surgical dilator extractor is introduced into the abdominal cavity through a trocar cannula and expanded, forming a tissue receiving space, at the distal end. The tissue receiving space is enlarged by passing a grasper through a lumen of the dilator extractor to interact with a guide surface on the interior of dilator extractor to expand a dilator portion having a single leaf beyond the natural resiliency of the leaf. The tissue being extracted is then manipulated into the space with the grasper. The tissue is then removed from the cavity by the surgeon applying a force onto the dilator extractor that insures the elongation of the tissue and temporarily dilates the entry wound to the extent necessary for the tissue to be removed. Alternative embodiments of the surgical dilator extractor and related instrument tool sets and methods for the use thereof also are disclosed.

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Номер записи: 13
31-10-2013 дата публикации

Stent and other object removal from a body

Номер: US20130289694A1
Автор: Paul Sherburne
Принадлежит: Individual

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.

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Номер записи: 14
07-11-2013 дата публикации

Coupling System Useful in the Placement of Implants

Номер: US20130296928A1
Автор: Steven W. Opolski, Todd A. Peavey
Принадлежит: WL Gore and Associates Inc

A coupling system is disposed at the distal end of an interventional delivery system for coupling to an implant. The coupling device has a first and second prong connected at one end. The other end of the prongs open or close to release or trap an object, e.g., a bead tethered from an implant. A slot at the distal end of the coupling device allows extra degrees of flexibility for the coupling device.

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Номер записи: 15
05-12-2013 дата публикации

RETRIEVAL SYSTEMS AND METHODS FOR USE THEREOF

Номер: US20130325051A1
Автор: DIECK Martin S., Martin Brian B.
Принадлежит: Lazarus Effect, Inc.

The devices and methods described herein relate to improved structures for removing obstructions from body lumens. Such devices have applicability in through-out the body, including clearing of blockages within the vasculature, by addressing the frictional resistance on the obstruction prior to attempting to translate and/or mobilize the obstruction within the body lumen. 1. A medical device retrieval system for securing an obstruction within a vessel lumen and for use with a catheter configured to be navigated through the vasculature , the device comprising:an elongated stent comprising a plurality of struts, the stent being collapsible for positioning in the catheter during delivery and having an expanded profile such that when expanded the struts are configured to engage the obstruction;a shaft fixedly attached to the elongated stent and having a flexibility to navigate through tortuous anatomy;a fluid permeable cover having a distal end coupled to a proximal end of the elongated stent a cover wall defining a cavity and extending along the shaft, and a proximal end being moveable relative to the shaft, where the fluid permeable cover is collapsible for positioning in the catheter during delivery and is expandable upon deployment from the catheter such that a portion of the fluid permeable cover is expandable; andwhere the fluid permeable cover is axially pliable such that when the device is deployed in the vessel and frictional forces are applied against the fluid permeable cover, proximal movement of the shaft and elongated stent cause inversion of the fluid permeable cover wall such that the fluid permeable cover wall everts over the elongated stent.2. The medical device of claim 1 , where the fluid permeable cover claim 1 , elongated stent claim 1 , and shaft are a unitary structure.3. The medical device of claim 1 , where at least a portion of the cover wall adjacent to the distal end has a set shape that is everted upon expansion.4. The medical device of ...

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Номер записи: 16
05-12-2013 дата публикации

CLOT REMOVAL DEVICE WITH STEERABLE ELEMENT

Номер: US20130325055A1
Автор: ECKHOUSE Ronen, Eckhouse Shimon, SUDIN Yuri
Принадлежит: RAPID MEDICAL LTD.

A clot removal device and method for removing a clot from a blood vessel are provided, where the clot removal device includes a shaft and an elongate clot engagement element having one end connected to the shaft and a distal end remote from the end connected to the shaft, and where the shaft and elongate clot engagement element having a principal longitudinal axis. Further, the distal end can include an end formation forming a curved contact surface at the distal end, and the end formation can be displaced to one side of the principal longitudinal axis. 1. A clot removal device , comprising:a shaft; andan elongate clot engagement element having one end connected to the shaft and a distal end remote from the end connected to the shaft;the shaft and elongate clot engagement element having a principal longitudinal axis;wherein the distal end comprises an end formation forming a curved contact surface at the distal end; andwherein the end formation is displaced to one side of the principal longitudinal axis.2. The device of claim 1 , wherein the engagement element comprises a coil.3. The device of claim 1 , wherein the end formation comprises a curved section of the engagement element.4. The device of claim 3 , wherein the curved section has a J-shape.5. The device of claim 3 , wherein the curved section has two curved portions.6. The device of claim 1 , wherein the end formation comprises an over-sized tip at the distal end.7. The device of claim 6 , wherein the over-sized tip comprises a ball-like formation.8. The device of claim 6 , wherein the engagement element proximal the over-sized tip exhibits a substantial variation in pitch.9. The device of claim 6 , wherein the engagement element proximal the over-sized tip exhibits a substantial variation in radius.10. A method of removing a clot from a blood vessel claim 6 , comprising:{'b': '80', 'deploying a clot removal device according to claim into a blood vessel;'}advancing the device in a blood vessel to a junction ...

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Номер записи: 17
05-12-2013 дата публикации

Clot removal device with steerable element

Номер: US20130325056A1
Автор: Ronen Eckhouse, Shimon Eckhouse, Yuri Sudin
Принадлежит: RAPID MEDICAL LTD

A clot removal device and method for removing a clot from a blood vessel are provided, where the clot removal device includes a shaft and an elongate clot engagement element having one end connected to the shaft and a distal end remote from the end connected to the shaft, and where the shaft and elongate clot engagement element having a principal longitudinal axis. Further, the distal end can include an end formation forming a curved contact surface at the distal end, and the end formation can be displaced to one side of the principal longitudinal axis.

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Номер записи: 18
26-12-2013 дата публикации

Multi-lumen central access vena cava filter apparatus for clot management and method of using same

Номер: US20130345627A1
Автор: Elijah Wade Atkinson, Jeffrey N. Steinmetz, Jeremy Morgan, Luis F. Angel, Rogelio Ivan Guerra
Принадлежит: Bio2 Medical Inc

A combined multi-lumen central access catheter and an embolic filter including ports proximal and distal the filter for fluid infusion and/or pressure sensing and infusion ports in the catheter to permit infusion of bioactive agents, flushing agents and/or contrast agents and managing the capture of the clot thereafter.

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Номер записи: 19
26-12-2013 дата публикации

CLOT RETRIEVAL DEVICE FOR REMOVING OCCLUSIVE CLOT FROM A BLOOD VESSEL

Номер: US20130345739A1
Автор: BRADY Eamon, CASEY Brendan, Gilvarry Michael, GRIFFIN Patrick, McNamara Jason, Razavi Mahmood K., VALE David
Принадлежит: Neuravi Limited

A clot retrieval device () for removing occlusive clot from a blood vessel comprises an inner elongate body () and an outer elongate body () at least partially overlying the inner elongate body (). The device also comprises an elongate member or shaft () having a proximal end which extends exterior of a patient so that a user can retrieve the stent-basket device and captured clot by retracting the shaft (). The outer elongate body () and the inner elongate body () are connected to the distal end of the shaft () and are expandable relative to the shaft () from a collapsed delivery configuration to an expanded deployed configuration. The outer elongate body () is expandable relative to the inner elongate body () to a radial extent which is greater than the radial extent of the inner body () in the deployed configuration. 1. A clot retrieval device for removing occlusive clot from a blood vessel , the device comprising:an inner elongate body having a collapsed delivery configuration and an expanded deployed configuration;an outer elongate body at least partially overlying the inner elongate body;the outer elongate body being expandable relative to the inner elongate body to a radial extent which is greater than the radial extent of the inner body in the deployed configuration.2. A device as claimed in comprising an elongate member having a proximal end and a distal end claim 1 , the inner elongate body being connected to the elongate member adjacent to the distal end thereof claim 1 , the inner elongate body being expandable relative to the elongate member.3. A device as claimed in wherein the outer elongate body is connected to the elongate member adjacent to the distal end thereof claim 2 , the outer elongate body being expandable relative to the elongate member.4. A device as claimed in wherein the proximal end of the elongate member is adapted to extend exterior of the patient.5. A device as claimed in wherein claim 1 , in the expanded configuration claim 1 , the ...

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Номер записи: 20
02-01-2014 дата публикации

Micro laparoscopy devices and deployments thereof

Номер: US20140005474A1
Автор: Danny Farin, Ronny Winshtein, Yehuda Bachar
Принадлежит: Eon Surgical Ltd

An apparatus for reversely deactivating a port seal in a laparoscopic port and providing a continuous passage between the laparoscopic port and a remote location in a body cavity.

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Номер записи: 21
02-01-2014 дата публикации

Multi-lumen central access vena cava filter apparatus for clot management and method of using same

Номер: US20140005674A1
Автор: Elijah Wade Atkinson, Jeffrey N. Steinmetz, Jeremy Morgan, Luis F. Angel, Rogelio Ivan Guerra
Принадлежит: Bio2 Medical Inc

A combined multi-lumen central access catheter and an embolic filter including ports proximal and distal the filter for fluid infusion and/or pressure sensing and infusion ports in the catheter to permit infusion of bioactive agents, flushing agents and/or contrast agents and managing the capture of the clot thereafter.

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Номер записи: 22
02-01-2014 дата публикации

Obstruction Removal System

Номер: US20140005713A1
Автор: Bowman Heath
Принадлежит:

An obstruction removal device is described, having one or more engaging members which can engage portions of the clot. The one or more engaging members have a collapsed, delivery state, and an expanded, deployed state. 1. An obstruction removal device comprising:at least one engaging member;at least one proximal structure connected to said at least one engaging member such that said at least one engaging member is allowed to rotate independently of said proximal structure;said at least one engaging member including a collapsed configuration and an expanded configuration.2. The obstruction removal device of wherein in said expanded configuration claim 1 , said at least one engaging member forms a shape selected from the group consisting of round claim 1 , oval claim 1 , elliptical claim 1 , hourglass claim 1 , spherical claim 1 , basket claim 1 , stent claim 1 , countered claim 1 , rectangular claim 1 , prismatic and cage.3. The obstruction removal device of wherein said at least one engaging member comprises a proximal end claim 1 , a distal end claim 1 , and at least one strut between said proximal end and said distal end.4. The obstruction removal device of wherein said at least one strut between said proximal end and said distal end comprises a plurality of struts interconnected to span between said proximal end and said distal end.5. The obstruction removal device of wherein said plurality of interconnected struts comprises struts that are non-symmetrical with struts on an opposite side of said at least one engaging member.6. The obstruction removal device of wherein said non-symmetrical struts facilitate rotation of said engaging member when said obstruction removal device travels through a body lumen by shifting a center of gravity of said engaging member away from a geometric center thereof.7. The obstruction removal device of wherein said plurality of interconnected struts comprises a plurality of struts claim 4 , no single strut of which spans between said ...

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Номер записи: 23
06-02-2014 дата публикации

APPARATUS AND METHOD FOR HEART VALVE REPAIR

Номер: US20140039511A1
Автор: Furnish Gregory R., Griffin Mark, Johnson Wayne Allen, Miser John, Morris Benjamin E.
Принадлежит: ST. JUDE MEDICAL, INC.

A device for transcatheter gathering of tissue of a heart valve leaflet may include an elongated tube extending in a longitudinal direction and a capture tool moveable in the elongated tube between a retracted position and an extended position. The elongated tube may have at least one slot extending generally in the longitudinal direction from a distal end of the elongated tube. The at least one slot may have an open end at the distal end of the elongated tube and a closed end remote therefrom. The capture tool may be operable to gather tissue of the heart valve leaflet into the at least one slot. The gathered tissue may have a pleated configuration. 1. A device for transcatheter gathering of tissue of a heart valve leaflet , comprising:an elongated tube extending in a longitudinal direction and having at least one slot extending generally in the longitudinal direction from a distal end of the elongated tube, the at least one slot having an open end at the distal end of the elongated tube and a closed end remote therefrom; anda capture tool moveable in the elongated tube between a retracted position and an extended position, the capture tool being operable to gather tissue of the heart valve leaflet into the at least one slot, such that the gathered tissue has a pleated configuration.2. The device of claim 1 , wherein a distal end of the capture tool has a hook shape.3. The device of claim 2 , wherein the capture tool includes a grasping wire slidably disposed in a containment tube claim 2 , and a distal portion of the grasping wire is adapted to change from a linear shape to the hook shape when the distal portion of the grasping wire is extended out from the containment tube.4. The device of claim 3 , wherein the grasping wire is partially or entirely made from a shape-memory material.5. The device of claim 1 , further comprising an operating handle having an actuating member adapted to control movement of the capture tool between the retracted and extended ...

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Номер записи: 24
06-02-2014 дата публикации

Laparoscopic Gallbladder Extraction Device

Номер: US20140039512A1
Автор: Chu Taiming, He Yuhao, LaTulip Scott, Liu Zongchang, WEI YANG
Принадлежит:

A surgical instrument for removing a gallbladder is provided. The surgical instrument includes a handle assembly, an elongated body portion extending distally from the handle assembly, and a capture portion operably mounted on a distal end of the elongated body portion. The capture portion defines a tissue receiving opening when in an open configuration and is configured for receipt through an incision when in the capture portion is in a closed configuration. The capture portion includes at least one sharpened member for cutting tissue received within the tissue receiving opening as the capture portion moves from the open configuration to the closed configuration. Also provided is a method of removing a gallbladder using a surgical instrument. 1. A surgical instrument comprising:a handle assembly;an elongated body portion extending distally from the handle assembly;a capture portion operably mounted on a distal end of the elongated body portion, the capture portion defining a tissue receiving opening when in an open configuration and being configured for receipt through an incision when in a closed configuration, wherein the capture portion includes at least one sharpened member for cutting tissue received within the tissue receiving opening as the capture portion moves from the open configuration to the closed configuration.2. The surgical instrument of claim 1 , wherein the tissue capture portion includes a plurality of capture sections.3. The surgical instrument of claim 2 , wherein the plurality of capture sections form a longitudinal cylinder when the capture portion is in a closed configuration.4. The surgical instrument of claim 2 , wherein each of the capture sections are operably connected to a linkage system for moving the capture sections between the closed configuration and the open configurations.5. The surgical instrument of claim 4 , wherein each linkage assembly includes a proximal linkage member and a distal linkage member.6. The surgical instrument ...

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Номер записи: 25
13-02-2014 дата публикации

Shaped Removal Device

Номер: US20140046359A1
Автор: "OLeary Shawn", Bowman Heath
Принадлежит: MICROVENTION, INC.

An obstruction removal device is described having a variable external profile shape comprising one or more smaller profile regions and one or more larger profile regions. 1. An obstruction removal device comprising:a first tubular region;a second tubular region connected to said first tubular region; and,a third tubular region connected to said second tubular region;wherein said first tubular region and said third tubular region have a first diameter, and said second tubular region has a second diameter that is different from said first expanded diameter when said obstruction removal device is in an expanded state.2. The obstruction removal device of claim 1 , wherein said first diameter is larger than said second diameter.3. The obstruction removal device of claim 2 , wherein said second diameter is smaller than said first diameter.4. The obstruction removal device of claim 3 , wherein said first tubular region and said second tubular region are each composed of a plurality of rectangular cells and wherein said second tubular region is composed of a plurality of elliptical cells.5. The obstruction removal device of claim 4 , further comprising a fourth tubular region connected to said first tubular region and a fifth tubular region connected to said third tubular region; wherein said fourth tubular region and said fifth tubular region both have said second expanded diameter.6. The obstruction removal device of claim 5 , wherein said fourth tubular region further comprises members that merge to a single point.7. The obstruction removal device of claim 6 , wherein said first tubular region and said third tubular region are composed of at least four rectangular cells each.8. The obstruction removal device of claim 6 , wherein said second tubular region claim 6 , said fourth tubular region claim 6 , and said fifth tubular region are each composed of two elliptical cells.9. The obstruction removal device of claim 1 , wherein said first tubular region and said second ...

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Номер записи: 26
06-03-2014 дата публикации

Device for Retrieving a Body from a Tubular Structure

Номер: US20140066948A1
Автор: Chernov-Haraev Artem Nikolaevich, Khmelevskaya Irina Yurievna, Korotitskiy Andrey Victorovich, Prokoshkin Sergel Dmitrievich, Ryklina Elana Prokopievna, Soutorine Mikhail
Принадлежит: Globetek 2000 Pty Ltd.

Some embodiments relate to a device for retrieving a body from within a tubular structure, the device having a proximal end and a distal end and comprising: a device body at the proximal end; a conduit extending away from the device body to the distal end and sized to be receivable in the tubular structure; at least one actuator operably associated with the device body; a first strand extending at least in part through the conduit; a second strand extending at least in part through the conduit; wherein the first and second strands are affixed at the distal end of the device, and wherein the second strand is wound around the first strand along at least a distal length of the first strand; wherein the at least one actuator is operable to cause the second strand to adopt an expanded state in which the second strand defines a trawl volume to catch the body for retrieval of the body from the tubular structure. 1. A device for retrieving a body from within a tubular structure , the device having a proximal end and a distal end and comprising:a device body at the proximal end;a conduit extending away from the device body to the distal end and sized to be receivable in the tubular structure;at least one actuator operably associated with the device body;a first strand extending at least in part through the conduit;a second strand extending at least in part through the conduit;wherein the first and second strands are affixed at the distal end of the device, and wherein the second strand is wound around the first strand along at least a distal length of the first strand;wherein the at least one actuator is operable to cause the second strand to adopt an expanded state in which the second strand defines a trawl volume to catch the body for retrieval of the body from the tubular structure.2. The device of claim 1 , wherein the trawl volume is defined by a spiral shape of the second strand in the expanded state.3. The device of claim 1 , wherein the trawl volume tapers inwardly ...

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Номер записи: 27
02-01-2020 дата публикации

CONSTRICTION REMOVAL METHOD

Номер: US20200000485A1
Автор: MOTAI Kosuke
Принадлежит: OLYMPUS CORPORATION

A constriction removal method using a high-frequency knife () and a collecting instrument () having a longitudinal axis and an increasing-diameter part (), whose diameter can be increased, at the distal end, the constriction removal method including: inserting the collecting instrument () from a proximal end opening of a constricted lumen of a constricted portion; allowing the increasing-diameter part () to pass through the constricted lumen and to project from the distal-end opening of the constricted lumen and allowing the diameter of the increasing-diameter part () having passed through the constricted lumen to increase toward the radially outer side of the constricted lumen; hooking ends of the increasing-diameter part () having passed through the constricted lumen on an edge of the distal-end opening of the constricted lumen; positioning the high-frequency knife () on the radially outer side of the proximal end opening of the constricted lumen; cylindrically coring out the constricted lumen with the high-frequency knife () in a state in which the ends of the increasing-diameter part () are hooked on the edge of the distal-end opening of the constricted lumen; and collecting the cored-out constricted lumen by pulling the collecting instrument () toward the proximal end of the collecting instrument (). 1. A constriction removal method using a high-frequency knife and a collecting instrument having a longitudinal axis and an increasing-diameter part , whose diameter can be increased , at the distal end , the constriction removal method comprising:inserting the collecting instrument from a proximal end opening of a constricted lumen of a constricted portion;allowing the increasing-diameter part to pass through the constricted lumen and to project from the distal-end opening of the constricted lumen and allowing the diameter of the increasing-diameter part having passed through the constricted lumen to increase toward the radially outer side of the constricted lumen ...

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Номер записи: 28
03-01-2019 дата публикации

Clot retrieval system for removing occlusive clot from a blood vessel

Номер: US20190000492A1
Автор: Brendan Casey, David HARDIMAN, David Vale, Grainne O'connor, Maeve HOLIAN
Принадлежит: Neuravi Ltd

A clot removal device for removing clot from a body vessel comprising an expandable structure and an elongate member. The elongate member can have a proximal end and a distal end, the elongate member being connected to the expandable structure at its distal end. The expandable structure can have 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 can be configured to engage clot in the expanded deployed configuration and to pinch clot on movement from the deployed configuration to the clot pinching configuration.

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Номер записи: 29
04-01-2018 дата публикации

ENDOVASCULAR DEVICES AND METHODS FOR EXPLOITING INTRAMURAL SPACE

Номер: US20180000513A1
Автор: Atkinson Robert E., Kugler Chad J., Olson Matthew J.
Принадлежит: Bridgepoint Medical, Inc.

Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes inserting an intramural crossing device into the vascular lumen, positioning at least the distal tip of the crossing device in the vascular wall, advancing an orienting device over the crossing device such that an orienting element of the orienting device resides in the vascular wall, inserting a reentry device, and re-entering the true vascular lumen. 1. A method of bypassing an occlusion in a blood vessel through a subintimal pathway , comprising:advancing a subintimal crossing device through a subintimal space between tissue layers of a vascular wall of the blood vessel adjacent to the occlusion;thereafter, advancing an orienting device into the subintimal space;expanding an orienting element of the orienting device in the subintimal space to orient a side port of the orienting device toward a lumen of the blood vessel distal of the occlusion; andadvancing a re-entry device out of the side port and into the true lumen of the blood vessel distal of the occlusion.2. The method of claim 1 , further comprising claim 1 , withdrawing the subintimal crossing device from the subintimal space prior to advancing the orienting device into the subintimal space.3. The method of claim 1 , wherein the orienting element expands in a planar orienting element.4. The method of claim 3 , wherein the planar orienting element is a preformed planar sinusoid.5. The method of claim 3 , wherein the planar orienting element is two wings that extend in opposite directions.6. The method of claim 3 , wherein the side port of the orienting device is oriented at a right angle to a plane of the planar orienting element.7. The method of claim 1 , wherein the subintimal crossing device includes a bulbous distal tip.8. The method of claim 1 , wherein the ...

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Номер записи: 30
13-01-2022 дата публикации

TISSUE EXTRACTION DEVICES AND RELATED METHODS

Номер: US20220008091A1
Автор: BONADIO Frank, Chavan Tejas, Einarsson Jon I., Isakov Alexander, Katre Nikhil, Patankar Mangesh Ratnakar, PRADHAN Debasish, Smith Jordan, Solkar Athar Anwar
Принадлежит:

In accordance with an aspect of the present disclosure, a tissue extraction device may include a bag having an interior and a plurality of cutting elements extending through the interior of the bag. 1. A tissue extraction device , comprising:a bag having an interior;at least one cutting element extending along an interior surface of the bag, wherein the at least one cutting element includes at least one strand, and a cutting member coupled to the at least one strand, wherein the cutting member includes at least one cutting edge to cut tissue as the cutting member is drawn across tissue.2. The tissue extraction device of claim 1 , wherein the cutting member includes a plurality of cutting edges arranged in a chain.3. The tissue extraction device of claim 2 , wherein at least one of the cutting edges is curved.4. The tissue extraction device of claim 3 , wherein said at least one curved cutting edge is convex.5. The tissue extraction device of claim 1 , wherein the device includes a plurality of singular cutting elements that are overlapped with other to facilitate using the cutting elements individually in a predetermined order.6. The tissue extraction device of claim 1 , wherein the at least one cutting element includes a blade on the strand.7. The tissue extraction device of claim 1 , wherein the at least one cutting edge is linear.8. The tissue extraction device of claim 1 , wherein the at least one cutting element defines a plurality of cutting edges along the strand.9. The tissue extraction device of claim 1 , wherein each edge of the plurality of edges is discrete claim 1 , separated from all other edges of the plurality of edges by a respective gap.10. The tissue extraction device of claim 1 , further comprising a channel coupled to the bag claim 1 , wherein the at least one cutting element extends through the channel.11. The tissue extraction device of claim 1 , wherein the at least one cutting element includes eyelets.12. The tissue extraction device of ...

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Номер записи: 31
20-01-2022 дата публикации

APPARATUS AND METHOD FOR TREATMENT OF POST THROMBOTIC SYNDROME

Номер: US20220015784A1
Автор: Erlick Benjamin, Gerveler Matthew, Lewis Michael, Millar Claire, Sampath Kumaran Ranjani, Simmons Brandon, TESSMER Alexander, Tristan Michael, Tze David
Принадлежит:

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 ...

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Номер записи: 32
14-01-2016 дата публикации

METHODS AND APPARATUS FOR TREATING EMBOLISM

Номер: US20160008014A1
Автор: Cox Brian J., Lubock Paul, Rosenbluth Robert F.
Принадлежит:

A method and apparatus for treating a clot in the blood vessel of a patient, and particularly the treatment of a pulmonary embolism is disclosed. The treatment includes restoring flow through the clot followed by clot removal, either partially or substantially completely. The clot treatment device is expandable into the blood vessel and may contain radial extensions that assist in restoring flow as well as in removing clot material. 130-. (canceled)31. A method of treating a pulmonary embolism that at least partially restricts blood flow through a pulmonary vessel , the method comprising:delivering an embolectomy device at least partially through the pulmonary embolism, wherein the embolectomy device includes an expandable braided structure;deploying the braided structure within at least a portion of the pulmonary embolism, wherein deploying the braided structure includes withdrawing a delivery sheath such that the braided structure expands and forms a flow channel that restores blood flow through the pulmonary embolism and wherein, in a deployed state, the braided structure has a cylindrical portion positioned between a first portion and a second portion that individually extend radially outwardly from the cylindrical portion such that a surface area to length ratio of the individual first and second portions is greater than the surface area to length ratio of the cylindrical portion;moving the embolectomy device and at least a portion of the pulmonary embolism along the pulmonary vessel; andwithdrawing the embolectomy device and at least a portion of the pulmonary embolism from the pulmonary vessel.32. The method of wherein deploying the braided structure includes expanding at least one of the first and second portions distal to the pulmonary embolism.33. The method of wherein deploying the braided structure comprises expanding the braided structure such that a combined surface area of the cylindrical portion claim 31 , first portion claim 31 , and the second ...

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Номер записи: 33
14-01-2021 дата публикации

Streamlined Treatment of Clot Removal, Angioplasty and Prevention of Restenosis Using a Single Integrated Intravascular Device

Номер: US20210007761A1
Автор: Johnson Kirk
Принадлежит:

A single integrated intravascular device including a stentriever and semi-compliant balloon housed therein. After traversing a clot, the device is deployed to a self-expanded state engaging the clot therein, whereupon the device along with the embedded clot is removed. Detecting through imaging a stenosis at an original position of the captured clot, the device is reintroduced to that location and the stentriever is deployed to a self-expanded state. Inflating the semi-compliant balloon enlarges the stentriever to a hyper-expanded state greater than the self-expanded state thereby dilating the vessel while simultaneously completely detaching/releasing the stentriever from a remaining portion of the device. Then the semi-compliant balloon is collapsed and withdrawn along with the remaining portion of the device, while the detachable/releasable portion of the stentriever in the self-expanded state remains in the vessel. 1. A single integrated intravascular device comprising:a pusher member having a proximal end, an opposite distal end;a self-expanding stentriever comprising an open scaffolding formed by multiple struts secured together; the self-expanding stentriever being transitionable upon withdraw of an externally applied mechanical force between a compressed state having a reduced diameter and a self-expanded state having an enlarged diameter; proximal and distal ends of the self-expanding stentriever being secured to the pusher member at respective proximal and distal securement points; the self-expanding stentriever being detachable or releasable from the pusher member at the respective proximal and distal securement points;a semi-compliant balloon housed within the self-expanding stentriever and secured to the pusher member extending axially through the semi-compliant balloon; andan inflation lumen defined axially in the pusher member in fluid communication with the semi-compliant balloon.2. The device according to claim 1 , wherein the self-expanding ...

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Номер записи: 34
27-01-2022 дата публикации

ELECTRICALLY ENHANCED RETRIEVAL OF MATERIAL FROM VESSEL LUMENS

Номер: US20220022899A1
Автор: Girdhar Gaurav, Nguyen Hoai (Kevin)
Принадлежит:

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. 120-. (canceled)21. A thrombectomy system , comprising:a power source;a first catheter;a second catheter configured to be slidably received through a lumen of the first catheter, wherein the second catheter is an aspiration catheter;a third catheter configured to be slidably received through the lumen of the first catheter;an elongated member configured to be slidably received through a lumen of the third catheter, the elongated member having a proximal end coupled to the power source and a distal end configured to be positioned within a blood vessel at or near a thrombus;an electrode configured to be electrically coupled to the power source, wherein the electrode is carried by the distal portion of one of the first catheter, the second catheter, the third catheter, or the elongated member; andan interventional element carried by the distal end of the elongated member and coupled to the power source, wherein the interventional element includes a first metallic material and a second metallic material disposed on the first metallic material along at least a portion of the interventional element, and wherein the power source is configured to deliver a current to the interventional element to positively charge the interventional element and promote adhesion of the thrombus thereto.22. The thrombectomy system of claim 21 , wherein the first catheter includes a flow arrest element configured to expand within the vessel lumen and at least ...

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Номер записи: 35
10-01-2019 дата публикации

THROMBUS ASPIRATION WITH DIFFERENT INTENSITY LEVELS

Номер: US20190008626A1
Автор: Janardhan Vallabh, Janardhan Vikram
Принадлежит:

Vascular treatment devices and methods include a woven structure including a plurality of bulbs that may be self-expanding, a hypotube, for example including interspersed patterns of longitudinally spaced rows of kerfs, and a bonding zone between the woven structure and the hypotube. The woven structure may include patterns of radiopaque filaments measureable under x-ray. Structures may be heat treated to include various shapes at different temperatures. The woven structure may be deployable to implant in a vessel. A catheter may include a hypotube including interspersed patterns of longitudinally spaced rows of kerfs and optionally a balloon. Laser cutting systems may include fluid flow systems. 1. A system for facilitating aspiration of a thrombus in a vessel , the system comprising:an automated motor pump configured to facilitate aspiration of the thrombus, the automated motor pump comprising an external control panel configured to receive input from an operator; andpower electronics configured to power and control the automated motor pump to generate a plurality of suction patterns having a plurality of intensity levels, a first intensity level having a first negative pressure between 100 and 350 mm Hg;', 'a second intensity level having a second negative pressure between 351 and 550 mm Hg; and', 'a third intensity level having a third negative pressure between 551 and 769 mm Hg; and, 'wherein the plurality of intensity levels compriseswherein a first crescendo suction pattern of the plurality of suction patterns comprises a repetitive cycle comprising the first intensity level for a first duration, the second intensity level for a second duration after the first duration, and the third intensity level for a third duration after the second duration.2. The system of :wherein the first duration, the second duration, and the third duration are each between 1 and 30 seconds; andwherein a total duration of the repetitive cycle of the first crescendo suction pattern ...

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Номер записи: 36
10-01-2019 дата публикации

THROMBUS ASPIRATION USING AN OPERATOR-SELECTABLE SUCTION PATTERN

Номер: US20190008627A1
Автор: Janardhan Vallabh, Janardhan Vikram
Принадлежит:

Vascular treatment devices and methods include a woven structure including a plurality of bulbs that may be self-expanding, a hypotube, for example including interspersed patterns of longitudinally spaced rows of kerfs, and a bonding zone between the woven structure and the hypotube. The woven structure may include patterns of radiopaque filaments measureable under x-ray. Structures may be heat treated to include various shapes at different temperatures. The woven structure may be deployable to implant in a vessel. A catheter may include a hypotube including interspersed patterns of longitudinally spaced rows of kerfs and optionally a balloon. Laser cutting systems may include fluid flow systems. 1. A system for facilitating aspiration of a thrombus in a vessel using an operator-selectable suction pattern , the system comprising:an automated motor pump configured to facilitate aspiration of the thrombus, the automated motor pump comprising an external control panel configured to receive input from an operator; andpower electronics configured to power and control the automated motor pump to generate a plurality of variable suction patterns having a plurality of intensity levels, a first intensity level having a first negative pressure; and', 'a second intensity level having a second negative pressure,', 'wherein the first negative pressure is between 551 and 769 mm Hg, and', 'wherein the first negative pressure is more negative than the second negative pressure;, 'wherein the plurality of intensity levels compriseswherein a first variable suction pattern of the plurality of variable suction patterns comprises a repetitive cycle comprising the first intensity level for a first duration and the second intensity level for a second duration after the first duration,wherein the first duration and the second duration are each between 1 and 30 seconds, andwherein a total duration of the repetitive cycle of the first variable suction pattern is between 1 minute and 15 ...

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Номер записи: 37
09-01-2020 дата публикации

Sealed neurovascular extendable catheter

Номер: US20200008820A1
Автор: Ashoor Shahbazi Yourgenlow, Brandon Yee, Chad C. Roue, Maria Aboytes, Ryan Taylor KRONE, Tiffany C. SUEKAMA, Yi Yang
Принадлежит: Imperative Care Inc

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.

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Номер записи: 38
09-01-2020 дата публикации

INDWELLING DEVICE

Номер: US20200008824A1
Автор: KIKUCHI Daisuke, NAMIMA Satoshi, TSUKAMOTO Toshihiko
Принадлежит: ASAHI INTECC CO., LTD.

An indwelling device that includes a hollow tubular body having a first end and a second end, and the first end is made of an elastic member. 1. An indwelling device , comprising:a hollow tubular body having a first end and a second end, whereinthe first end is made of an elastic member.2. The indwelling device according to claim 1 , whereinthe hollow tubular body includes a larger inner diameter portion having a second inner diameter larger than a first inner diameter of the first end.3. The indwelling device according to claim 2 , whereinthe larger inner diameter portion is located at the second end.4. The indwelling device according to claim 2 , whereinan inner diameter of the hollow tubular body increases gradually from the first inner diameter at the first end to the second inner diameter at the larger inner diameter portion.5. The indwelling device according to claim whereinthe larger inner diameter portion is located between the first end and the second end, and a third inner diameter of the second end is smaller than the second inner diameter of the larger inner diameter portion.6. The indwelling device according to claim 5 , whereinan inner diameter of the hollow tubular body increases gradually from the first inner diameter at the first end to the second inner diameter at the larger inner diameter portion, and decreases gradually from the second inner diameter at the larger inner diameter portion to the third inner diameter at the second end.7. The indwelling device according to claim whereinthe larger inner diameter portion includes a braid configured with multiple wires wound in multiple directions.8. The indwelling device according to claim 7 , whereinthe larger inner diameter portion further includes a resin covering the braid.9. The indwelling device according to any one of claim 7 , whereinat least a part of the braid is made of a radiopaque material.10. The indwelling device according to claim 7 , whereinthe larger inner diameter portion is ...

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Номер записи: 39
17-01-2019 дата публикации

JAW ASSEMBLY FOR A VESSEL SEALER

Номер: US20190015124A1
Автор: Olichney Michael, Spomer Alyssa, Williams Mason
Принадлежит: CONMED CORPORATION

A jaw assembly for vessel sealing device having a pair of jaw member that are pivotally coupled together via two flanges associated with one of the jaw members and a single, centrally positioned flange associated with the other of the jaw members. The flanges include cam slots so that axial movement of a drive shaft can open and close the jaw members. The jaw members may include a knife pathway for axial movement of a knife blade that is positioned to one side of the central flange and thus offset from the central axis of the jaws. 1. A jaw assembly for a vessel sealing device , comprising:a first jaw member having first and second spaced apart flanges;a second jaw member having a single third flange positioned between the first and second flanges of the first jaw member and pivotally connected thereto.2. The jaw assembly of claim 1 , further comprising a drive shaft coupled to the first jaw member and the second jaw member.3. The jaw assembly of claim 2 , wherein the drive shaft is coupled to the first jaw member and the second jaw member by a clevis.4. The jaw assembly of claim 3 , wherein the clevis is coupled to the first and second flanges by corresponding first and second cam slots in the first and second flanges.5. The jaw assembly of claim 4 , wherein the clevis is coupled to the third flange by a third cam slot in the third flange.6. The jaw assembly of claim 5 , wherein first jaw member and the second jaw member are pivotally connected by a pivot pin.7. The jaw assembly of claim 6 , wherein the pivot pin has a shoulder positioned in abutting relation to the third flange of the second jaw member.8. The jaw assembly of claim 7 , wherein the first and second jaw members includes corresponding first and second slots defining a knife pathway.9. The jaw assembly of claim 8 , further comprising a knife blade extending from the drive shaft and to one side of the single third flange.10. The jaw assembly of claim 9 , wherein the knife pathway curves inwardly from a ...

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Номер записи: 40
21-01-2021 дата публикации

SURGICAL RETRACTOR TOOL

Номер: US20210015514A1
Автор: REKSTAD Lars Cato, STORLI Per Even, YSTGAARD Brynjulf
Принадлежит:

A surgical retractor tool for removing an object from the stomach or from the oesophagus. The tool includes a flexible steerable tube for insertion into the body via the oral cavity and a gripper at the distal end of the tube for gripping an object in the stomach or the oesophagus in order to allow for removal of the object from the stomach or the oesophagus. The gripper includes first and second rotatable gripper surfaces and a clamping mechanism for moving the gripper surfaces to clamp the object. The rotatable gripper surfaces are arranged to rotate relative to the tube in order to allow a longitudinal axis of a gripped object to move into alignment with a longitudinal axis of the tube. 1. A surgical retractor tool for removing an object from the oesophagus or from the stomach , the tool comprising:a flexible steerable tube for insertion into the body via the oral cavity; anda gripper at the distal end of the tube for gripping an object in the oesophagus or the stomach in order to allow for removal of the object from the oesophagus or the stomach;wherein the gripper includes:a first rotatable gripper surface,a second rotatable gripper surface, anda clamping mechanism for moving the gripper surfaces relative to one another to thereby clamp the object between the two gripper surfaces,wherein the rotatable gripper surfaces are arranged to rotate relative to the tube in order to allow a longitudinal axis of a gripped object to move into alignment with a longitudinal axis of the tube.2. A surgical retractor tool as claimed in claim 1 , wherein the gripper surfaces are provided by a layer of an elastic material that will generate higher friction in contact with a metal object than a metal-metal contact.3. A surgical retractor tool as claimed in claim 2 , wherein the level of friction is similar to that provided by a rubber-metal contact.4. A surgical retractor tool as claimed in claim 1 , wherein the gripper is joined to the steerable tube at an articulated end of the ...

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Номер записи: 41
21-01-2021 дата публикации

PERCUTANEOUS IMPLANT RETRIEVAL SYSTEM

Номер: US20210015611A1
Автор: Azanki Omar Fawzi, Passman Joseph Arthur
Принадлежит:

Devices and methods for retrieving percutaneously implanted catheter systems such as a heart valve repair system. The devices include at least one locking connector at the distal end of a flexible elongated extension for coupling to an implanted tubular member. The locking connector may be a tubular anchor having a pair of distal prongs which are biased outward and face in a proximal direction, as well as an expandable auxetic midsection. Inserting the tubular anchor into the implanted tubular member flexes the distal prongs inward such that they prevent proximal movement of the tubular anchor. A user pulls on the proximal end of the tubular anchor to expand the auxetic midsection and lock the two pieces together. The devices and methods are particularly useful to attach extensions to implanted concentric tubes to enable relative axial force application. 1. A retrieval system for use in retrieving an elongated percutaneously-implanted implant or instrument having an outer shaft that defines a lumen , comprising:a tubular extension member having a connector sized to extend within the lumen of the outer shaft and attach thereto, wherein the connector comprises an expandable auxetic section adapted to radially expand into contact with the lumen of the outer shaft when subjected to a tensile force.2. The system of claim 1 , wherein the percutaneously-implanted implant or instrument has the outer shaft concentrically-disposed about an inner shaft also having a lumen claim 1 , and wherein the retrieval system has:the tubular extension member configured to engage the outer shaft and,a flexible extension member configured to engage the inner shaft, wherein the flexible extension member has a first connector and a first length, the first connector being sized to extend within the lumen of the inner shaft and attach thereto, andthe connector of the tubular extension member is a second connector and the tubular extension member has a second length shorter than the first length ...

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Номер записи: 42
15-01-2015 дата публикации

Retrieval systems and methods for use thereof

Номер: US20150018929A1
Автор: Brian B. Martin, Martin S. Dieck
Принадлежит: Lazarus Effect Inc

The devices and methods described herein relate to improved structures for removing obstructions from body lumens. Such devices have applicability in through-out the body, including clearing of blockages within the vasculature, by addressing the frictional resistance on the obstruction prior to attempting to translate and/or mobilize the obstruction within the body lumen.

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Номер записи: 43
28-01-2016 дата публикации

A CLOT REMOVAL DEVICE

Номер: US20160022296A1
Автор: BRADY Eamon, CASEY Brendan, Gilvarry Michael, VALE David
Принадлежит: Neuravi Limited

A clot retrieval system comprises a clot retrieval device, a catheter , and a tubular shield element . The clot retrieval device comprises an elongate member having a proximal end and a distal end, and a clot engaging element at the distal end of the elongate member the clot engaging element having a collapsed delivery configuration and an expanded deployed configuration. The catheter is adapted for placement at a location at which a distal end of the catheter is proximal of the clot engaging element and the tubular shield element extends over the elongate member and is adapted for location between the distal end of the catheter and the proximal end of the clot engaging element . The tubular shield element is movable relative to the elongate member when the clot engaging element is in the expanded configuration in that the force that is applied on retraction of the elongate member is spread over the outer surface of the tubular shield element. The force that would usually be exerted on vessels on retrieval of the clot engaging element is spread by the shield element thus reducing the effects of abrasion. 1. A clot retrieval system comprising:a clot retrieval device;a catheter; anda tubular shield elementthe clot retrieval device comprising an elongate member having a proximal end and a distal end, and a clot engaging element at the distal end of the elongate memberthe clot engaging element having a collapsed delivery configuration and an expanded deployed configuration,the catheter being adapted for placement at a location at which a distal end of the catheter is proximal of the clot engaging element, the tubular shield element extending over the elongate member and being adapted for location between the distal end of the catheter and the proximal end of the clot engaging element and being movable relative to the elongate member when the clot engaging element is in the expanded configuration so that a retraction force applied to the elongate member is spread over ...

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Номер записи: 44
28-01-2016 дата публикации

METHOD AND APPARATUS FOR LITHIASIS TREATMENT

Номер: US20160022297A1
Автор: Qian Kun, QIAN Xuliang
Принадлежит:

A medical apparatus may include an inflatable tubular component that can be inflated into a U-shaped structure, a plurality of connecting portions formed on a main body. In one embodiment, the connecting portion can be used for inflating an inflatable cylindrical component formed in the U-shaped structure. The medical apparatus treatment may further include a plurality of control filaments disposed on an inner surface of the U-shaped structure to control the size thereof, so the inner surface of the U-shaped structure can tightly press against an outer surface of the inflatable cylindrical component when it is inflated, and a chamber is formed in the U-shaped structure next to the inflated cylindrical component. When in use, the stones can be trapped into the chamber and chemical reagents can be introduced to either dissolve or disrupt the stones. 1. A medical apparatus comprising an inflatable tubular component that is configured to be inflated into a U-shaped structure , a plurality of connecting portions formed on a main body , wherein one of the connecting portions is used to inflate the inflatable tubular component , while the other connecting portion inflates an inflatable cylindrical component formed inside the U-shaped structure until an inner surface of the U-shaped structure tightly presses against an outer surface of the inflatable cylindrical component , and a chamber to trap bladder stones is formed in the U-shaped structure next to the inflated cylindrical component.2. The medical apparatus of claim 1 , further comprising a plurality of control filaments disposed on an inner surface of the U-shaped structure to control the size thereof.3. The medical apparatus of claim 1 , wherein the inflatable cylindrical component is detachable from the U-shaped structure.4. The medical apparatus of claim 2 , wherein the inflatable cylindrical component is detachable from the U-shaped structure.5. The medical apparatus of claim 1 , wherein the medical apparatus is ...

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Номер записи: 45
23-01-2020 дата публикации

DEVICES AND METHODS FOR OCULAR SURGERY

Номер: US20200022841A1
Автор: Chamness Scott, Clauson Luke W., Reese Brendan, Schaller Michael
Принадлежит:

Devices, systems, and methods for performing an ophthalmic procedure in an eye are disclosed. The devices include a hand-held portion and a distal, elongate member coupled to the hand-held portion having a lumen operatively coupled to a vacuum source. A drive mechanism operatively coupled to the elongate member is configured to oscillate the elongate member. When in use, the device is configured to aspirate ocular material from the eye through the lumen. The drive mechanism retracts the elongate member with a retraction speed profile and advances the elongate member with an extension speed profile. The retraction speed profile is different from the extension speed profile. 1. A medical device for removing lens tissue from inside a capsular bag of an eye , the device comprising:a housing sized to be held in a hand, the housing comprising:at least one vacuum generation source;a variable-speed motor operatively coupled to said at least one vacuum generation source;an actuator for activating the motor to power said at least one vacuum generation source; anda shaft adapted to access a lens inside the capsular bag of the eye, said shaft having a lumen fluidly coupled to said at least one vacuum generation source,wherein actuation of said actuator on said housing causes said at least one vacuum generation source to generate vacuum within said lumen to aspirate said lens tissue.2. The medical device of claim 1 , wherein said at least one vacuum generation source generates pulses of vacuum within the lumen.3. The medical device of claim 1 , wherein said at least one vacuum generation source comprises a plurality of vacuum generation sources housed within said housing.4. The medical device of claim 3 , wherein said housing comprises a reusable portion operatively coupled to a disposable portion claim 3 , and further wherein said plurality of vacuum generation sources are housed within said disposable portion of the housing.5. The medical device of claim 4 , wherein said motor ...

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Номер записи: 46
28-01-2021 дата публикации

SUCTION EVACUATION DEVICE

Номер: US20210022759A1
Автор: Wan Shaw P.
Принадлежит:

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 a side arm;said side arm emanating from the outer surface of said sheath;an obturator having two or more channels which is configured to be inserted into a proximal end of the sheath and which extends beyond the distal end of said sheath and is releasably secured to the sheath; 'said sheath having a lumen contiguous with a lumen of said side arm; and', '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 the device to increase the negative pressure within the device by covering the pressure regulating mechanism or decrease the negative pressure within the device by uncovering the pressure regulating mechanism;'}a flexible cap is releasably secured to the proximal end of the sheath.2. The device of further comprising a guide wire which is configured to be introduced into a lumen or cavity of a patient containing one or more stones or foreign bodies ...

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Номер записи: 47
23-01-2020 дата публикации

Medical Device Handle and Method of Use

Номер: US20200023163A1
Автор: Chu Michael S. H., TAYLOR Ashley, Watschke Brian P.
Принадлежит:

A handle assembly includes a drive wire coupled to an expandable end effector, the wire having a diameter of no more than 3 French and a handle cannula receiving the wire therethrough, rotation of the handle cannula transferring torque to rotate the wire. The assembly also includes a shaft receiving the handle cannula, rotation of the shaft transferring torque to rotate the handle cannula. The assembly further includes an actuation assembly receiving the shaft, the actuation assembly coupled to a sheath sized to receive the wire and end effector therethrough, the actuation assembly moveable between a proximal configuration in which the sheath is moved proximally to expand the end effector and a distal configuration in which the sheath is moved distally to retract the end effector, the actuation assembly including a rotation mechanism transferring torque to the shaft to rotate the shaft. 115-. (canceled)16. A handle assembly , comprising:a drive wire extending from a proximal end to a distal end configured to be coupled to an expandable end effector, the drive wire having a diameter of less than 3 French;a handle cannula extending from a proximal end to a distal end and configured to receive the drive wire therethrough, the handle cannula including a crimped portion configured to crimp the handle cannula to the drive wire such that rotation of the handle cannula transfers torque to rotate the drive wire, an outer profile of the handle cannula being non-circular in shape;a shaft member extending from a proximal end to a distal end, the shaft member configured to slidably receive the handle cannula therethrough, an inner profile of the shaft member sized and shaped to match the outer profile of the handle cannula such that rotation of the shaft member transfers torque to rotate the handle cannula, and outer profile of the shaft member being non-circular in shape; andan actuation assembly configured to slidably receive the shaft member therein, a distal end of the ...

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Номер записи: 48
04-02-2016 дата публикации

System and method for guided removal from an in vivo subject

Номер: US20160030070A1
Автор: Brian Howard Esiner
Принадлежит: General Hospital Corp

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.

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Номер записи: 49
01-02-2018 дата публикации

SYSTEMS AND METHODS FOR INTRAVASCULAR OBSTRUCTION REMOVAL

Номер: US20180028209A1
Автор: ECKHOUSE Ronen, FRIEDMAN Aharon, SUDIN Yuri
Принадлежит: RAPID MEDICAL LTD.

Intraluminal devices and methods for removing an obstruction from a blood vessel using an intraluminal device are provided. The intraluminal device can include a flexible shaft and an expandable wire mesh structure extending from the flexible shaft, the wire mesh structure including at least one first expandable section having a first wire arrangement pattern and at least one second expandable section having a second wire arrangement pattern different from the first wire arrangement pattern. In addition, interstices in the at least one first expandable section can differ in size from interstices in the at least one second expandable section. 1. An intraluminal device , comprising:a flexible shaft;an expandable wire mesh structure extending from the flexible shaft, the wire mesh structure including at least one first expandable section having a first wire arrangement pattern and at least one second expandable section having a second wire arrangement pattern different from the first wire arrangement pattern; andwherein interstices in the at least one first expandable section differ in size from interstices in the at least one second expandable section.2. The intraluminal device of claim 1 , wherein wire of the at least one first expandable section is braided and wire of the at least one second expandable section is non-braided.3. The intraluminal device of claim 2 , wherein interstices of the at least one non-braided second section are larger than interstices of the at least one braided first section.4. The intraluminal device of claim 2 , wherein the at least one first expandable section includes at least two braided sections separated by a non-braided section.5. The intraluminal device of claim 2 , wherein the at least one second expandable section includes at least two non-braided sections separated by a braided section.6. The intraluminal device of claim 2 , wherein the at least one second expandable section includes a plurality of non-braided sections claim 2 , ...

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Номер записи: 50
17-02-2022 дата публикации

Medical device

Номер: US20220047288A1
Автор: John Bertram BARRITT, Yuichi Tada
Принадлежит: Terumo Corp

A medical device for cutting substances inside a body lumen includes a flexible and elongated drive shaft including a distal portion and a proximal portion, a cutting member connected to the distal portion of the drive shaft to be rotatable with the drive shaft, and a hub located at the proximal portion and supporting the drive shaft, the hub including a first bearing mounted on the drive shaft and an elastic ring that is made of an elastic material on an outer periphery of the first bearing.

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Номер записи: 51
29-01-2015 дата публикации

Aspiration systems

Номер: US20150032120A1
Автор: Vallabh Janardhan, Vikram JANARDHAN
Принадлежит: Insera Therapeutics Inc

Thrombus aspiration may be performed using manual negative intermittent suction (e.g., provided by a syringe) or using an automated negative suction device (e.g., provided by a vacuum pump). The suction device may be connected through suction tubing to a hub of a catheter. The automated negative suction device may include an external control panel for the operator configured to allow the operator to choose from any of a plurality of suction patterns during an aspiration procedure.

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Номер записи: 52
31-01-2019 дата публикации

VASCULAR DEVICE MARKER ATTACHMENT

Номер: US20190029789A1
Автор: Brown Kenneth, Epstein Evan
Принадлежит:

A medical device can include an elongate manipulation member, and a thrombectomy device connected to the elongate manipulation member. The thrombectomy device can have a first configuration and a second configuration, the thrombectomy device being expandable from the first configuration to the second configuration. The thrombectomy device can include an arcuate marker-mounting projection attached to a portion of the thrombectomy device configured to contact a thrombus. A marker can be coupled to, and extending around, the arcuate marker-mounting projection with the marker and the arcuate marker-mounting projection contacting each other at three discrete locations. A method for engaging a thrombus can include advancing a thrombectomy device to a location radially adjacent to a thrombus in a blood vessel. The thrombectomy device can be positioned such that a marker, disposed at a proximal end of a working length of thrombectomy device, is proximal to or longitudinally aligned with a proximal end of the thrombus, and can be expanded into the thrombus. 115-. (canceled)16. A medical device comprising:an elongate manipulation member; anda thrombectomy device coupled to the elongate manipulation member, the thrombectomy device extending between a first end and a second end and expandable from a first configuration to a second configuration,the thrombectomy device comprising (i) a plurality of arcuate marker-mounting projections, each attached to a portion of the thrombectomy device configured to contact a thrombus, (ii) a plurality of struts forming a plurality of cells, each of the projections extending from one of the struts disposed between the first and second ends of the thrombectomy device, and (iii) a plurality of markers, each marker being attached to one of the arcuate marker-mounting projections,wherein at least some of the marker-mounting projections are laterally aligned in the absence of external forces on the thrombectomy device, and wherein at least some of ...

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Номер записи: 53
17-02-2022 дата публикации

MEDICAL DEVICE HANDLE AND METHOD OF USE

Номер: US20220047848A1
Автор: Chu Michael S. H., TAYLOR Ashley, Watschke Brian P.
Принадлежит:

A handle assembly includes a drive wire coupled to an expandable end effector, the wire having a diameter of no more than 3 French and a handle cannula receiving the wire therethrough, rotation of the handle cannula transferring torque to rotate the wire. The assembly also includes a shaft receiving the handle cannula, rotation of the shaft transferring torque to rotate the handle cannula. The assembly further includes an actuation assembly receiving the shaft, the actuation assembly coupled to a sheath sized to receive the wire and end effector therethrough, the actuation assembly moveable between a proximal configuration in which the sheath is moved proximally to expand the end effector and a distal configuration in which the sheath is moved distally to retract the end effector, the actuation assembly including a rotation mechanism transferring torque to the shaft to rotate the shaft. 123-. (canceled)24. A retrieval device , comprising:an end effector moveable between a retracted configuration and an expanded configuration, the end effector having a diameter of no greater than 3 French;a drive wire extending from a proximal end to a distal end configured to be coupled to an expandable end effector;a handle cannula extending from a proximal end to a distal end and configured to receive the drive wire therethrough, the handle cannula including a crimped portion configured to crimp the handle cannula to the drive wire such that rotation of the handle cannula transfers torque to rotate the drive wire, an outer profile of the handle cannula being non-circular; andan actuation assembly configured to slidably receive the shaft member therein, a distal end of the actuation assembly being coupled to a sheath sized and shaped to receive the drive wire and end effector therethrough, the actuation assembly moveable between a proximal configuration in which the sheath is moved proximally to expand the end effector and a distal configuration in which the sheath is moved ...

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Номер записи: 54
30-01-2020 дата публикации

Tissue closure

Номер: US20200029972A1
Автор: Barry Weitzner, Gary Jordan, Michael Zupkofska
Принадлежит: Boston Scientific Scimed Inc

A device for fastening tissue includes (a) a shaft extending longitudinally from a distal end insertable into a body to a proximal end attached to a controller which remains outside of the body, the shaft including a lumen extending therethrough and an opening extending through a wall of a distal portion thereof to open the lumen to an exterior of the shaft; (b) a first roller housed within the lumen adjacent to a first longitudinal edge of the opening such that a rotation of the first roller grasps and draws tissue from the body into the lumen in combination; and (c) a fastening element housed within the lumen adjacent to the opening and movable from a tissue receiving configuration to a tissue gripping configuration.

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Номер записи: 55
11-02-2016 дата публикации

RECANALIZING OCCLUDED VESSELS USING CONTROLLED ANTEGRADE AND RETROGRADE TRACKING

Номер: US20160038164A1
Автор: Katoh Osamu, Ogata Wayne
Принадлежит:

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 ...

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Номер записи: 56
24-02-2022 дата публикации

Electrically-Responsive Hydrogels

Номер: US20220054801A1
Автор: Bowman Heath, Tsukashima Ross
Принадлежит: MICROVENTION, INC.

Implants comprising electrically-responsive hydrogel are described. Systems to provide electricity to induce response in hydrogel-containing implants are described. Methods for utilizing said system and methods for utilizing said hydrogel-containing implants are described. 1. A method of electrically inducing a change in state of a hydrogel of an implant comprising:advancing the implant outside of a delivery device; and,applying electrical current from a power source connected to the implant, through a patient's body, and through the hydrogel of the implant so as to control contraction and/or expansion of the hydrogel of the implant.2. The method according to claim 1 , wherein applying the electrical current through the hydrogel shrinks or mitigates expansion of the hydrogel.3. The method according to claim 1 , wherein applying the electrical current through the hydrogel expands the hydrogel or augments expansion of the hydrogel.4. The method according to claim 1 , wherein the applying the electrical current includes selectively modulating the pulse width of the electrical current.5. The method according to claim 1 , further comprising disconnecting the implant from the power source.6. The method according to claim 1 , wherein the applying electrical current through the hydrogel is performed after disconnecting the implant from the delivery device.7. The method according to claim 1 , wherein the implant is a helical coil having a hydrogel coating.8. The method according to claim 1 , wherein the implant is a helical coil containing the hydrogel.9. The method according to claim 1 , wherein the medical implant is a slotted tube containing the hydrogel.10. The method according to claim 1 , applying the electrical current further comprises applying electrical current through a patch contacting the patient's body.11. The method according to claim 1 , wherein the implant comprises a carrier in which the hydrogel is held under tension.12. The method according to claim 1 , ...

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Номер записи: 57
07-02-2019 дата публикации

Systems And Methods For Percutaneous Removal Of Objects From An Internal Body Space

Номер: US20190038316A1
Автор: Joseph H. Gorman, Iii, Mark Piper, Matthew J. Gillespie, Robert C. Gorman
Принадлежит: Childrens Hospital of Philadelphia CHOP, University of Pennsylvania Penn

Disclosed are systems, methods, and devices for percutaneous retrieval of objects, such as endovascular devices, from an internal body space. The present inventions have vascular, non-vascular (gastrointestinal), and surgical (laproscopic) applications. The inventions include a retrieval end having one or more compressed states and an expanded state, the retrieval end adopting the expanded state when the retrieval end is deployed into a subject's internal body space, the retrieval end having a mouth through which an object can be passed into an interior space within the retrieval end when the retrieval end is in the expanded state, the mouth being adjustable between an opened state and a closed state; wherein when at least a portion of the retrieval end of the inner sheath is transitioned to a compressed state following capture of the object, the retrieval end exerts an inward force that at least partially collapses or compresses the object.

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Номер записи: 58
07-02-2019 дата публикации

SYSTEM AND METHOD FOR TREATMENT OF EUSTACHIAN TUBE FROM MIDDLE EAR APPROACH

Номер: US20190038470A1
Автор: Chan Randy S., Dean Marc, Ha Hung V., Lam Sivette, Muni Ketan P., Nguyen Andy, Poe Dennis S., Sudhoff Holger
Принадлежит:

A dilation catheter includes a shaft and an expandable element. The shaft includes a proximal portion and a distal portion. The distal portion includes a tip and a bend. The tip is sized and configured to pass through an isthmus of a Eustachian tube (ET). The bend is proximal to the tip. The bend is formed at an angle configured to provide insertion of the tip into the isthmus of the ET via an ear canal associated with the ET. The expandable element is disposed at the distal portion of the shaft. The expandable element is configured to transition between a non-expanded state and an expanded state. The expandable element in the non-expanded state is configured for insertion into the ET via the isthmus. The expandable element in the expanded state is configured to dilate the ET. 120.-. (canceled)21. A dilation catheter , comprising: (i) a gripping portion comprising an inflation port, and', '(ii) an elongate portion extending distally from the gripping portion along a longitudinal axis, wherein the elongate portion comprises a first cross-sectional dimension, wherein the elongate portion defines a first section of an inflation lumen, wherein the first section of the inflation lumen is in fluid communication with the inflation port of the gripping portion;, '(a) a rigid proximal shaft, wherein the rigid proximal shaft comprises'}(b) a flexible distal shaft extending distally from the elongate portion of the proximal shaft, wherein the flexible distal shaft is configured to flex relative to the longitudinal axis, wherein the flexible distal shaft defines a second section of the inflation lumen in fluid communication with the first section of the inflation lumen, wherein the flexible distal shaft comprises a tapered outer surface defining an opening in fluid communication with the second section of the inflation lumen; and(c) an inflatable balloon attached to the outer surface of the flexible distal shaft, wherein an interior of the inflatable balloon is in fluid ...

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Номер записи: 59
06-02-2020 дата публикации

APPARATUS AND METHOD FOR IMPROVED ACCESS OF PROCEDURAL CATHETER IN TORTUOUS VESSELS

Номер: US20200038210A1
Автор: SHAIKH Azim, SYED Mubin I.
Принадлежит: RAM MEDICAL INNOVATIONS, LLC

Tortuosity of vessels at or leading to the site of minimally invasive procedures is a problem for conducting such procedures as they increase the difficulty to guide the procedural catheters through tortuous vessels. Methods and apparatus for stabilization of the sheaths and catheters during access, procedures, and withdrawal in these tortuous vessels are disclosed. The apparatus and method for improving access include application of a pull component to the stabilized procedural catheter using a stabilization catheter/wire in addition to a push component from the percutaneous access to make the access easier while enabling use of more flexible catheters and softer wires. These methods and devices address the problems of trauma to the vessels during access, procedure and removal of catheters and wires, improve pushability of softer catheters and wires, and also substantially reduce substantially the procedure time. 1. A percutaneous intervention system comprising:a bifurcated catheter comprising a first procedural lumen and a second stabilization lumen, the bifurcated catheter comprising a proximal end and a distal end;a stabilization wire slideably insertable through the stabilization lumen configured to provide end to end stabilization during procedure, the stabilization wire lockable to the distal end of the bifurcated catheter; anda procedural catheter slideably insertable through the first procedural lumen and configured to be delivered to a treatment site for a treatment procedure,wherein the bifurcated catheter is configured to be pushed from the proximal end and pulled from the distal end by the stabilization wire during delivery of the procedural catheter to the treatment site.2. The percutaneous interventional system of claim 1 , wherein the bifurcated catheter is inserted via a first percutaneous access.3. The percutaneous interventional system of claim 2 , wherein the first percutaneous access is a groin access.4. The percutaneous interventional system of ...

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Номер записи: 60
18-02-2016 дата публикации

KIDNEY STONE SUCTION DEVICE

Номер: US20160045208A1
Автор: CIULLA Ronald
Принадлежит:

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 ...

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Номер записи: 61
18-02-2016 дата публикации

SHAPE-SET TEXTILE STRUCTURE BASED MECHANICAL THROMBECTOMY SYSTEMS

Номер: US20160045211A1
Автор: Janardhan Vallabh, Janardhan Vikram
Принадлежит:

A biomedical shape-set textile structure based mechanical thrombectomy systems and methods are described. In one of the embodiments, the mechanical thrombectomy device can be customized to the length of the clot in each patient. In one of the embodiments, the mechanical thrombectomy device because of the textile structure has a very low overall profile or thickness that is less than 0.0125 inches (0.317 mm) and therefore can be deployed within microcatheters with inner lumen diameter as small as 0.014 inches (0.355 mm). 1. (canceled)2. A thrombectomy device comprising:a plurality of wires woven to form a textile structure having a collapsed configuration and an expanded configuration, the textile structure comprising five to ten self-expanding bulbs in the expanded configuration, at least two of the plurality of bulbs having different outer diameters in the expanded configuration; anda delivery system proximal to the textile structure.3. The device of claim 2 , wherein at least one of the self-expanding bulbs has a spherical shape in the expanded configuration.4. The device of claim 2 , wherein the plurality of wires comprises shape memory wires and radiopaque wires and wherein the radiopaque wires are clustered to enhance visibility under x-ray.5. The device of claim 2 , wherein the textile structure comprises five said self-expanding bulbs.6. The device of claim 2 , wherein the textile structure comprises six said self-expanding bulbs.7. The device of claim 2 , wherein the textile structure comprises ten said self-expanding bulbs.8. The device of claim 2 , wherein the delivery system comprises a multi-filament hybrid.9. The device of claim 2 , wherein the delivery system comprises a hypotube.10. The device of claim 2 , wherein the delivery system comprises a multi-filament hybrid claim 2 , wherein the textile structure comprises six said self-expanding bulbs claim 2 , wherein at least one of the self-expanding bulbs has a spherical shape in the expanded ...

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Номер записи: 62
18-02-2016 дата публикации

ANCHORED FLOW DIVERTING DEVICES

Номер: US20160045212A1
Автор: Janardhan Vallabh, Janardhan Vikram
Принадлежит:

Vascular treatment and methods include a plurality of self-expanding bulbs and a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Joints between woven structures and hypotubes include solder. Woven structures include patterns of radiopaque filaments measureable under x-ray. Structures are heat treated to include at least shapes at different temperatures. A catheter includes a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Heat treating systems include a detachable flange. Laser cutting systems include a fluid flow system. 1. (canceled)2. A device for treating a thrombus in a vessel , the device comprising:a distal portion including a plurality of wires woven to form a textile structure having a collapsed state and an expanded state, the textile structure comprising six self-expanding bulbs having three or more sizes, at least some of the self-expanding bulbs having a spherical shape, anda proximal portion coupled to the distal portion.3. The device of claim 2 , wherein the three or more sizes of said self-expanding bulbs are repeated two or more times.4. The device of claim 2 , wherein the proximal portion comprises a multi-filament hybrid.5. The device of claim 2 , wherein the plurality of wires include radiopaque wires and shape-memory wires.6. The device of claim 5 , wherein the radiopaque wires are clustered to enhance visibility under x-ray.7. The device of claim 2 , wherein the proximal portion comprises a multi-filament hybrid claim 2 , wherein the textile structure comprises six said self-expanding bulbs claim 2 , wherein at least one of the self-expanding bulbs has a spherical shape in the expanded state claim 2 , and wherein the plurality of wires comprises shape memory wires and radiopaque wires.8. A device for treating a thrombus in a vessel claim 2 , the device comprising:a distal portion including a plurality of wires woven to form a textile structure having a collapsed state and an ...

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Номер записи: 63
15-02-2018 дата публикации

METHODS FOR ADVANCING INVERTING MECHANICAL THROMBECTOMY APPARATUSES IN THE VASCULATURE

Номер: US20180042624A1
Автор: GREENHALGH E. Skott, Wallace Michael P.
Принадлежит: STRYKER CORPORATION

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 ...

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Номер записи: 64
15-02-2018 дата публикации

MEDICAL RETRIEVAL DEVICES AND RELATED METHODS

Номер: US20180042625A1
Автор: McLEISH Eric D.
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

A medical device may include a shaft and an end-effector extending distally of the shaft. The end-effector may be expandable between a collapsed configuration and an expanded configuration. The end-effector may include a proximal nose and a distal body. The proximal nose may have a radial dimension smaller than a radial dimension of the distal body in the expanded configuration. The end-effector may include a plurality of legs and a transition point of each leg may be located between the nose and the distal body along a common plane normal to the shaft. The shaft may include proximal ends of the legs wrapped about one another. 1. A medical device , comprising:a shaft; andan end-effector extending distally of the shaft and expandable between a collapsed configuration and an expanded configuration, the end-effector including a proximal nose and a distal body, wherein the proximal nose has a radial dimension smaller than a radial dimension of the distal body in the expanded configuration;wherein the end-effector includes a plurality of legs, wherein a transition point of each leg located between the nose and the distal body is located along a common plane normal to the shaft, and wherein the shaft includes proximal ends of the legs wrapped about one another.2. The medical device of claim 1 , wherein the distal body is spherical in the expanded configuration.3. The medical device of claim 1 , wherein the end-effector includes only four legs.4. The medical device of claim 1 , wherein the end-effector is symmetric about an axis of the shaft in the expanded configuration.5. The medical device of claim 1 , wherein the nose includes a proximal section having a changing radial dimension in the expanded configuration.6. The medical device of claim 1 , wherein the legs are coupled to one another via a knot at a distal-most end of the end-effector in the expanded configuration.7. The medical device of claim 1 , wherein the end-effector comprises an atraumatic tip.8. The medical ...

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Номер записи: 65
15-02-2018 дата публикации

PRE-LOADED INVERTING TRACTOR THROMBECTOMY APPARATUSES AND METHODS

Номер: US20180042626A1
Автор: Garabedian Robert, GREENHALGH E. Skott, Wallace Michael P.
Принадлежит: STRYKER CORPORATION

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 ...

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Номер записи: 66
15-02-2018 дата публикации

Methods And Devices To Remove Thromboembolic Material From Blood Vessels

Номер: US20180042628A1
Автор: Panian Justin
Принадлежит:

A guard device for removal of thromboembolic material from a blood vessel includes a placement catheter having at least one axial lumen, a shield device having a pusher wire with an expandable braid assembly attached to its distal end and deliverable through the lumen of the placement catheter. The expandable braid assembly has a distal end with a distal tip at the distal end, where the distal tip prevents the distal end of the expandable braid assembly from fully expanding when deployed from the placement catheter. The expandable braid assembly has a diameter that is at least 1.5 times larger in its expanded position than in its collapsed configuration when inside the placement catheter. 1. A guard device for removal of thromboembolic material from a blood vessel , comprising:a placement catheter having at least one axial lumen;a shield device comprising a pusher wire with an expandable braid assembly attached to its distal end and deliverable through the lumen of the placement catheter, wherein the expandable braid assembly is movable during deployment from a first delivery position to a second placement position, wherein in the first delivery position the expandable braid assembly is in an unexpanded position inside the placement catheter having a nominal first diameter, and wherein in the second position the expandable braid assembly is in a radially expanded position having a second nominal diameter greater than the first nominal diameter when deployed within the vasculature of a patient, wherein the expandable braid assembly has a distal end with a distal tip at the distal end, where the distal tip prevents the distal end of the expandable braid assembly from fully expanding when deployed from the placement catheter, andwherein the expandable braid assembly has a diameter that is at least 1.5 times larger in its expanded position than in its collapsed configuration when inside the placement catheter.2. The device of claim 1 , wherein the distal end of the ...

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Номер записи: 67
03-03-2022 дата публикации

FLEXIBILITY BALLOON CATHETER

Номер: US20220061863A1
Автор: Johnson Kirk, LORENZO Juan
Принадлежит: DePuy Synthes Products, Inc.

The disclosed technology includes a balloon guide catheter having a substantially tubular body, an inflation lumen, and a balloon. The tubular body can include an inner hollow lumen and a distal end. The inflation lumen can have a distal end and a proximal section. The distal end of the inflation lumen can be in connection with the tubular body approximate to the distal end of the tubular body. The proximal section of the inflation lumen can extend a majority of the length of the tubular body and can be moveable in relation to the tubular body. The inflation lumen can be positioned within an inner hollow lumen of a tubular body of the catheter or external to the tubular body, thereby enhancing flexibility of the catheter.

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Номер записи: 68
03-03-2022 дата публикации

ASPIRATION SYSTEMS AND METHODS, AND EXPANDING-MOUTH CATHETERS

Номер: US20220061870A1
Автор: Mintz Eric
Принадлежит:

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.

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Номер записи: 69
03-03-2022 дата публикации

ASPIRATION SYSTEMS AND METHODS, AND EXPANDING-MOUTH CATHETERS

Номер: US20220061871A1
Автор: Mintz Eric
Принадлежит:

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.

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Номер записи: 70
03-03-2022 дата публикации

ASPIRATION SYSTEMS AND METHODS, AND EXPANDING-MOUTH CATHETERS

Номер: US20220061872A1
Автор: Mintz Eric
Принадлежит: COVIDIEN LP

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.

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Номер записи: 71
25-02-2016 дата публикации

BALLOON CATHETER

Номер: US20160051270A9
Автор: DUBI SHAY, HIRSZOWICZ Eran
Принадлежит: ANGIOSLIDE LTD.

A balloon catheter includes an outer conduit having an outer surface, and an inner conduit having an outer surface. The inner conduit is suitable for passage over a guide wire, and the inner conduit is movably disposed within the lumen of the outer conduit. There is also a balloon having a proximal margin and a distal margin, such that the proximal margin of the balloon is attached to the outer surface of the distal tip of the outer conduit and the distal margin of the balloon is attached to the outer surface of the portion of the inner conduit that extends beyond the distal tip of the outer conduit. And there is a fluid port for introducing an expansion fluid into the annular space formed between the inner surface of the outer conduit and the outer surface of the inner conduit and into the lumen of the balloon, and for the removal of the expansion fluid. 1. A balloon catheter comprising:an outer conduit having an outer surface;an inner conduit having an outer surface, the inner conduit is suitable for passage over a guide wire, the inner conduit is movably disposed within the lumen of the outer conduit, wherein the distal tip of the inner conduit extends beyond the distal tip of the outer conduit at all times during operation of the catheter, and wherein the inner conduit is capable of being moved along its longitudinal axis in relation to the outer conduit;a balloon, having a proximal margin and a distal margin, wherein the proximal margin of the balloon is attached to the outer surface of the distal tip of the outer conduit and the distal margin of the balloon is attached to the outer surface of the portion of the inner conduit that extends beyond the distal tip of the outer conduit, and wherein the distal and/or proximal end portion(s) of the balloon are capable of intussuscepting upon proximal movement of the inner conduit in relation to the outer conduit to form a cavity within the balloon, such that when the intussuscepted balloon is deflated, the cavity is ...

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Номер записи: 72
25-02-2021 дата публикации

Specimen Retrieval System for Use in Endoscopic Surgery

Номер: US20210052262A1
Автор: Sherman Darren R., Smith Jeffrey
Принадлежит: Freehold Surgical, LLC

A specimen retrieval system for easier tissue removal during endoscopic surgery. The device includes a specimen tube with a main tube, and a mechanism for pulling and everting the distal end of the tube into the tube, or a side channel provided within the tube. The mechanism may include a tether fixed to the distal edge of the tube, or a grasper operable to grasp the distal edge of the tube. 1. A specimen retrieval system comprising:a tube having a distal end and a proximal end, said distal end being open, said tube having a lumen extending from the distal end to the proximal end;a tether fixed to the distal end of the tube, said tether extending from the distal end of the tube and extending out the proximal end of the tube, said tether operable to pull the distal end of the tube while the distal end of the tube is in an open configuration.2. The specimen retrieval system of further comprising:means for holding the distal end of the tube in an open configuration.3. The specimen retrieval system of claim 2 , wherein the means for holding the distal end of the tube in an open configuration comprise one or more inflatable channels extending longitudinally along the tube.4. The specimen retrieval system of claim 2 , wherein the means for holding the distal end of the tube in an open configuration comprise a semi-rigid hoop secured to a distal edge of the tube.5. The specimen retrieval system of claim 4 , wherein the tether is fixed to the distal end of the tube through the hoop.6. The specimen retrieval system of claim 2 , wherein the means for holding the distal end of the tube in an open configuration comprise a grasper extending through the tube claim 2 , from the proximal end of the tube to the distal end of the tube.7. The specimen retrieval system of further comprising:a casing disposed near the distal end of the tube; whereina first portion of the tether runs through the casing.8. The specimen retrieval system of further comprising:a plurality of inflatable ...

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Номер записи: 73
25-02-2021 дата публикации

TISSUE SPECIMEN RETRIEVAL DEVICES WITH INTEGRATED BAG CUT-OFF MECHANISM

Номер: US20210052291A1
Автор: Banerjee Saumya, Baril Jacob C.
Принадлежит:

A tissue specimen retrieval device includes a first shaft and a second shaft telescopically movable relative to the first shaft. The second shaft supports an end effector assembly at a distal end portion thereof and is movable relative to the first shaft between a retracted position, wherein the end effector assembly is disposed within the first shaft, and a deployed position, wherein the end effector assembly extends distally from the first shaft. The end effector assembly includes a tissue specimen bag supported by a first arm and a second arm. The first and second arms are configured to open the tissue specimen bag when the second shaft is deployed. A cut-off slider is operably associated with the distal end portion of the second shaft and is configured to sever the tissue specimen bag upon retraction of the second shaft. 1. A tissue specimen retrieval device , comprising:a first shaft;a second shaft telescopically movable relative to the first shaft, the second shaft supporting an end effector assembly at a distal end portion thereof and movable relative to the first shaft between a retracted position, wherein the end effector assembly is disposed within the first shaft, and a deployed position, wherein the end effector assembly extends distally from the first shaft,the end effector assembly including a tissue specimen bag supported by a first arm and a second arm, the first and second arms configured to open the tissue specimen bag when the second shaft is in the deployed position; anda cut-off slider operably associated with the distal end portion of the second shaft, the cut-off slider configured to sever the tissue specimen bag upon retraction of the second shaft.2. The tissue specimen retrieval device of claim 1 , wherein the cut-off slider includes a blade disposed therein.3. The tissue specimen retrieval device of claim 1 , wherein the cut-off slider includes a pair of first and second opposing flanges configured to ride atop respective first and second ...

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Номер записи: 74
22-02-2018 дата публикации

TISSUE REMOVAL SYSTEM

Номер: US20180049729A1
Автор: Michaels George Charles, Schenck Jessica Tina, Sullivan Roy H.
Принадлежит: Hologic, Inc.

A tissue removal device includes a housing, an outer tube having a distal portion configured for transcervical insertion into a uterus, an inner tube slidably disposed within the outer tube lumen, a vacuum generation chamber disposed within the housing, a movable piston slidably disposed in the vacuum generation chamber, a collection chamber, a manual actuator moveably coupled to the housing and operatively coupled to the piston, and proximal and distal one-way valves. The outer tube has an outer tube lumen, a tissue in-take opening proximate a distal end thereof, and a proximal end coupled to the housing. The inner tube has an inner tube lumen extending from an open inner tube distal end to an open inner tube proximal end, the open inner tube distal end comprising a cutting edge configured to sever intrauterine tissue extending through the tissue in-take opening in the outer tube. 1. A tissue removal device for acquiring one or more samples of intrauterine tissue from a patient , the tissue removal device comprising:a housing;an outer tube having a distal portion configured for transcervical insertion into a uterus, the outer tube having an outer tube lumen, a tissue in-take window proximate a closed distal end thereof, and a proximal end coupled to the housing;an inner tube slidably disposed within the outer tube lumen, the inner tube having an inner tube lumen extending from an open inner tube distal end to an open inner tube proximal end, wherein the open inner tube distal end severs intrauterine tissue extending through the tissue in-take window in the outer tube when the inner tube moves from a window open position to a window-closed position;a vacuum generation chamber disposed within the housing;a movable piston slidably disposed in the vacuum generation chamber, so that the piston forms a wall of the vacuum chamber, wherein the inner tube lumen is selectively placed in fluid communication with the vacuum generation chamber via a distal one-way valve, the ...

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Номер записи: 75
22-02-2018 дата публикации

DEVICES AND METHODS FOR FACILITATING SLEEVE GASTRECTOMY PROCEDURES

Номер: US20180049902A1
Автор: Dierking Kurt, Meehan Christopher M., Miesse Andrew, Racenet David
Принадлежит:

A gastrectomy device includes an elongated member and a tube. The elongated member has a proximal end and a distal end and defines a longitudinal side window disposed adjacent the distal end. The elongated member defines a first longitudinal channel, a second longitudinal channel, and a plurality of side apertures. The first longitudinal channel is in communication with the longitudinal side window and the plurality of side apertures is in communication with the second longitudinal channel. The tube extends through the first longitudinal channel. An array of lights is associated with the tube to provide illumination. The tube is movable through the elongated member between a first state, in which the tube is disposed within the first longitudinal channel of the elongated member, and a second state, in which a portion of the tube extends through the longitudinal side window of the elongated member. 1. A gastrectomy device , comprising: a distal end portion having a plurality of spaced-apart balloons that are selectively expandable;', 'a longitudinal side window disposed adjacent the distal end;', 'a first longitudinal channel in communication with the longitudinal side window;', 'a plurality of side apertures; and', 'a second longitudinal channel in communication with the plurality of side apertures and configured for coupling to a source of pressure;, 'an elongated member defininga tube extending through the first longitudinal channel and having a proximal end and a distal end, wherein the tube is movable to bow outwardly through the window; andat least one light associated with the tube to provide illumination.2. The gastrectomy device of claim 1 , further including an elongated printed circuit board disposed within the tube and having the array of lights disposed thereon.3. The gastrectomy device of claim 1 , wherein the array of lights includes LEDs.4. The gastrectomy device of claim 1 , further including a handle assembly coupled to the proximal end of the ...

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Номер записи: 76
10-03-2022 дата публикации

CLOT RETRIEVAL DEVICE FOR REMOVING OCCLUSIVE CLOT FROM A BLOOD VESSEL

Номер: US20220071646A1
Автор: BRADY Eamon, CASEY Brendan, Gilvarry Michael, GRIFFIN Patrick, McNamara Jason, Razavi Mahmood K., VALE David
Принадлежит: Neuravi Limited

A clot retrieval device that includes a proximal scaffolding section with a closed proximal end and an open distal end; an inner elongate member; and a distal scaffolding section with a closed proximal end and an open distal end element. The distal scaffolding section is configured to move distally or proximally so as to capture clot between the proximal and distal scaffolding sections 1. A clot retrieval device , comprising:a common central axis;{'claim-text': ['a proximal scaffolding section comprising a closed proximal end and an open distal end; and', 'a distal scaffolding section comprising a closed proximal end and a distal end element; and'], '#text': 'an outer member comprising:'}an inner elongate member connected to at least one of the proximal and distal scaffolding members;wherein one or both of the proximal and distal scaffolding sections are configured to move distally or proximally so as to capture clot between the proximal and distal scaffolding sections in a retracted state.2. The device of claim 1 , wherein the inner elongate member comprises a shaft.3. The device of claim 2 , wherein the shaft is axially aligned with the common central axis.4. The device of claim 1 , wherein each scaffolding section comprises a plurality of struts in the form of closed cells.5. The device of claim 4 , wherein the closed cells of the distal scaffolding section are larger than the closed cells of the proximal scaffolding section.6. The device of claim 4 , wherein a shape of the closed cells of the distal scaffolding section differs from than a shape of the closed cells of the proximal scaffolding section.7. The device of claim 4 , wherein the struts of each scaffolding sections diverge from the common central axis.8. The device of claim 1 , further comprising a clot inlet mouth between the proximal scaffolding section and the distal scaffolding section.9. The device of claim 1 , the distal scaffolding section is configured to slide distally relative to the inner ...

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Номер записи: 77
03-03-2016 дата публикации

Obstruction Removal System

Номер: US20160058459A1
Автор: Heath Bowman
Принадлежит: MicroVention Inc

An obstruction removal device is described, having one or more engaging members which can engage portions of the clot. The one or more engaging members have a collapsed, delivery state, and an expanded, deployed state.

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Номер записи: 78
01-03-2018 дата публикации

PERCUTANEOUS MODIFICATION OF VASCULAR EXTRACELLULAR MATRIX TO PREVENT AND TREAT VASCULAR RESTENOSIS

Номер: US20180056086A1
Автор: HARARI Emanuel
Принадлежит:

Aspects of disclosed embodiments relate to systems, devices and methods for treating and preventing restenosis by cross-linking collagen fibrils of the vessel wall at the intervention site. The devices described are drug-eluting devices comprising: an expandable member or a balloon; a cross-linking agent; and a photoactivating light source. Upon the inflation of the expandable member or the balloon the cross linking agent is released and photoactivated in a therapeutically effective amount for cross-linking collagen fibrils. 1. A device comprising:an expandable member having a distal end, a proximal end and a working length therebetween;a cross-linking agent; anda photoactivating light source.2. The device of claim 1 , wherein the expandable member is a balloon.3. The device of claim 1 , wherein the expandable member is coated with a layer comprising a carrying agent.45-. (canceled)6. The device of claim 1 , wherein the cross-linking agent is supplied through a catheter of the device.7. The device of claim 1 , wherein the photoactivating light source is supplied by and/or incorporated on the expandable member.89-. (canceled)10. The device of claim 1 , wherein in operable position claim 1 , the cross-linking agent induces cross-linking of collagen fibrils responsive to photoactivating light incident on the cross-linking agent.11. The device of claim 1 , wherein the cross linking agent comprises one or more photoactive bioflavonoids selected from the group consisting of: proanthocyanidin claim 1 , catechin claim 1 , epicatechin claim 1 , epigallo catechin claim 1 , epicatechin gallate claim 1 , epigallocatechin gallate claim 1 , quercetin claim 1 , tannic acid claim 1 , and any combination thereof.12. The device of claim 1 , wherein the cross-linking agent comprises one or more photoactive substances.13. The device of claim 10 , wherein the cross-linking agent comprises riboflavin.1415-. (canceled)16. The device of claim 1 , wherein the photoactivating light is ...

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Номер записи: 79
21-02-2019 дата публикации

Flexible-manipulator sheath and manipulator

Номер: US20190054639A1
Автор: Toshihiro Yoshii, Yuta FUJII
Принадлежит: Olympus Corp

Provided is a flexible-manipulator sheath including: a flexible inner tube having a lumen along a longitudinal direction thereof, the lumen configured to insert a wire; a flexible outer tube disposed to cover an outer circumferential surface of the inner tube, the outer tube having a higher compression stiffness than the inner tube; and a cushioning disposed at a space between an inner surface of the outer tube and an outer surface of the inner tube, wherein the cushioning is formed by at least one of filling the space with a viscous material and disposing an elastic sheet at the space.

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Номер записи: 80
15-05-2014 дата публикации

EMBOLIC PROTECTION DEVICE AND METHODS OF USE

Номер: US20140135813A1
Автор: Drontle John R., Dusbabek Andrew J., Hackett Steven S., Janecek Thomas F., Keith Peter T., Phillips Joel D., Ressemann Thomas V., Thunstrom Kyle L., Trembath Chad W., Whitbrook Eric S.
Принадлежит: St. Jude Medical, Cardiology Division, Inc.

An evacuation sheath assembly and method of reducing or removing a blockage within a vessel without permitting embolization of particulate matter is provided. The evacuation sheath assembly includes a first elongate tubular member, having proximal and distal ends and a main lumen configured to be placed in fluid communication with a blood vessel. An expandable member is provided on a distal portion of the tubular member. The evacuation assembly further includes a second elongate tubular member having an inflation lumen configured to be placed in fluid communication with the expandable member and a fluid inflator. The fluid inflator is configured to be placed in fluid communication with the inflation lumen in order to provide a regulated pressure fluid source for inflating the expandable member. 1. A fluid inflator comprising: a shuttle chamber having a pressure chamber and a vacuum chamber;', 'a shuttle movable within the shuttle chamber between at least first and second positions;, 'a shuttle mechanism for controlling fluid flow to an expandable member via an inflation lumen, the shuttle mechanism comprisingwherein the shuttle is operable to alternately place the pressure chamber in flow communication with a vacuum source, a pressurized fluid source, and the inflation lumen.2. The fluid inflator of claim 1 , further comprising a tube coupled to the inflation lumen and to the shuttle chamber claim 1 , the expandable member and inflation lumen being part of a balloon catheter.3. The fluid inflator of claim 1 , further comprising a puncturing mechanism connected to the pressurized fluid source and including a puncture spear and a lever for engaging the puncture spear.4. The fluid inflator of claim 1 , further comprising a mechanism for removing fluid from an expandable member of the balloon catheter.5. The fluid inflator of claim 1 , wherein the pressure chamber further comprises an inlet port in fluid communication with the pressurized fluid source for filling the ...

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Номер записи: 81
15-05-2014 дата публикации

Systems, methods and devices for removing obstructions from a blood vessel

Номер: US20140135814A1
Автор: Ivan Sepetka, John Miller, Maria Aboytes, Ryan Pierce, Son Gia, Tiffany Tran Ngo
Принадлежит: Concentric Medical Inc

Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.

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Номер записи: 82
05-03-2015 дата публикации

Balloon catheter

Номер: US20150066068A1
Автор: Eran Hirszowicz, Shay Dubi
Принадлежит: Angioslide Ltd

A balloon catheter includes an outer conduit having an outer surface, and an inner conduit having an outer surface. The inner conduit is suitable for passage over a guide wire, and the inner conduit is movably disposed within the lumen of the outer conduit. There is also a balloon having a proximal margin and a distal margin, such that the proximal margin of the balloon is attached to the outer surface of the distal tip of the outer conduit and the distal margin of the balloon is attached to the outer surface of the portion of the inner conduit that extends beyond the distal tip of the outer conduit. And there is a fluid port for introducing an expansion fluid into the annular space formed between the inner surface of the outer conduit and the outer surface of the inner conduit and into the lumen of the balloon, and for the removal of the expansion fluid.

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Номер записи: 83
28-02-2019 дата публикации

ENDOVASCULAR DEVICES AND METHODS

Номер: US20190059927A1
Автор: Atkinson Robert E., Kugler Chad J.
Принадлежит: Bridgepoint Medical, Inc.

Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes providing an intravascular device having a distal portion, inserting the device into the vascular lumen, positioning the distal portion in the vascular wall to at least partially surround the occlusion, and removing at least a portion of the surrounded occlusion from the lumen. 1. A method of treating an occlusion in a vascular lumen defined by a vessel wall , comprising:inserting a guidewire into the vascular lumen and advancing a distal end of the guidewire to a position adjacent the occlusion;advancing a catheter over the guidewire into the vascular lumen to the position adjacent the occlusion, the catheter including a balloon proximate a distal end of the catheter, a guidewire lumen having the guidewire slidably disposed therein, and a device lumen extending to a distal opening;inflating the balloon to an inflated configuration against an intima of the vessel wall at the position adjacent the occlusion;advancing a distal portion of a subintimal device disposed within the device lumen out of the distal opening and through the intima into a subintimal space within the vessel wall.2. The method of claim 1 , further comprising:delaminating tissue layers of the vessel wall adjacent the occlusion.3. The method of claim 2 , wherein delaminating tissue layers of the vessel wall includes infusing a fluid into the subintimal space.4. The method of claim 3 , wherein the fluid is infused directly into the subintimal space from the device lumen.5. The method of claim 3 , wherein the fluid is infused into the subintimal space through the subintimal device.6. The method of claim 2 , wherein delaminating tissue layers of the vessel wall includes expanding the distal portion of the subintimal device from a collapsed configuration to ...

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Номер записи: 84
10-03-2016 дата публикации

Vessel occluding material extractor

Номер: US20160066936A1
Автор: Jan Weber, Steven M. Spencer
Принадлежит: Boston Scientific Scimed Inc

Methods, devices, and systems for extracting vessel occluding material are provided. An embodiment of a vessel occluding material extractor includes a host structure, a plurality of expandable members, a slide mechanism, and a circumferential member. The host structure has an elongate axis. The expandable members are connected to the host structure arrayed radially around the elongate axis. The slide mechanism is connected to the expandable members and adjacent the host structure, and is slidable in the direction of the elongate axis. The circumferential member is connected to the expandable members between the connection of the slide mechanism and the host structure to the expandable members.

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Номер записи: 85
08-03-2018 дата публикации

VESSEL DISSECTION AND HARVESTING APPARATUS, SYSTEMS AND METHODS

Номер: US20180064528A1
Автор: Dye Kenneth R.
Принадлежит:

Apparatus, systems, and methods for endoscopic dissection of blood vessels and control over cavity pressure within an endoscopic procedure are described herein. Apparatus, systems, and methods for harvesting of blood vessels are also described herein. 112-. (canceled)13. A blood vessel harvesting apparatus comprising:an inner shaft comprising a proximal end and a distal end, the inner shaft extending between the proximal end and the distal end;an outer shaft comprising a first lumen and a second lumen, wherein at least a portion of the inner shaft is located within the first lumen, and wherein the inner shaft and the outer shaft are configured to rotate relative to each other about a longitudinal axis extending between the proximal end and the distal end of the inner shaft while the inner shaft is located within the first lumen, and further wherein the first lumen and the second lumen each comprise an opening proximate a distal end of the outer shaft;a capture member proximate the distal end of the inner shaft, wherein the capture member is operably attached to struts extending through the inner shaft, and wherein the capture member and the struts are movable between a retracted position in which the capture member is located proximate the distal end of the inner shaft and an extended position in which a blood vessel aperture is defined between the distal end of the inner shaft and the capture member, and wherein the capture member comprises a vessel gate that is movable between an open position in which a blood vessel can enter the blood vessel aperture and a closed position in which a blood vessel located in the blood vessel aperture is captured between the capture member and the distal end of the inner shaft; anda stabilizing member located in the blood vessel aperture, wherein the stabilizing member is movable between a retracted position in which the stabilizing member is located proximate the distal end of the inner shaft and an extended position in which the ...

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Номер записи: 86
09-03-2017 дата публикации

SYSTEMS AND METHODS FOR PERCUTANEOUS REMOVAL OF OBJECTS FROM AN INTERNAL BODY SPACE

Номер: US20170065299A1
Автор: Gillespie Matthew J., Gorman, Gorman Robert C., III Joseph H., PIPER MARK
Принадлежит:

Disclosed are systems, methods, and devices for percutaneous retrieval of objects, such as endovascular devices, from an internal body space. The present inventions have vascular, non-vascular (gastrointestinal), and surgical (laproscopic) applications. The inventions include a retrieval end having one or more compressed states and an expanded state, the retrieval end adopting the expanded state when the retrieval end is deployed into a subject's internal body space, the retrieval end having a mouth through which an object can be passed into an interior space within the retrieval end when the retrieval end is in the expanded state, the mouth being adjustable between an opened state and a closed state; wherein when at least a portion of the retrieval end of the inner sheath is transitioned to a compressed state following capture of the object, the retrieval end exerts an inward force that at least partially collapses or compresses the object. 2. The system according to claim 1 , further comprising at least one manipulation tool for grips claim 1 , grasps claim 1 , grapples claim 1 , ensnares claim 1 , moves claim 1 , captures claim 1 , changes the orientation claim 1 , or manipulates the object claim 1 , the manipulation tool being deployable into the subject's internal body space via a lumen in the inner sheath.3. The system according to claim 1 , further comprising a suture line having a loop portion that is positioned around the circumference of the mouth of the retrieval end and that is used to transition the mouth between the opened state and the closed state.4. The system according to wherein said suture line transitions the mouth between the opened state and the closed state independently of whether the retrieval sheath has been at least partially withdrawn into the outer sheath.5. The system according to claim 1 , further comprising a control line that is affixed to the retrieval end for changing the position of the mouth of the retrieval end within the ...

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Номер записи: 87
11-03-2021 дата публикации

Electrically enhanced retrieval of material from vessel lumens

Номер: US20210068853A1
Автор: Andy Huynh, Gaurav Girdhar, Hoai (Kevin) Nguyen
Принадлежит: COVIDIEN LP

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.

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Номер записи: 88
11-03-2021 дата публикации

INVERTING THROMBECTOMY APPARATUSES AND METHODS OF USE

Номер: US20210068854A1
Автор: GREENHALGH E. Skott, Leguidleguid Roy, TANG Winnie, VAN Clifford, Wallace Michael P.
Принадлежит: STRYKER CORPORATION

Described herein are methods using mechanical inverting tube apparatuses to remove clot (e.g., thrombectomy), the apparatuses including an inversion support catheter having an expandable funnel-shaped distal end, and a flexible tube that can be continuously rolled over the funnel-shaped distal end and invert into the inner lumen of the inversion support catheter. 1. A method of removing a clot from a blood vessel , the method comprising:advancing an inverting tube apparatus through the blood vessel until a distal end portion of the inverting tube apparatus is located proximate to the clot, wherein the inverting tube apparatus comprises an inversion support catheter having an elongate and flexible catheter body, an internal catheter lumen, and an expandable funnel disposed at a distal end of the catheter body, wherein a distal end of the funnel defines an opening in communication with an interior of the funnel and the catheter lumen, respectively, the inverting tube apparatus further comprising a flexible tube inverted over the distal end of the expandable funnel and having a first region at least partially disposed within the interior of the funnel, and a second region at least partially extending over an exterior surface of the funnel;expanding the funnel from a collapsed delivery configuration into an expanded configuration within the blood vessel proximate to the clot; andpulling the first region of the flexible tube proximally to thereby roll the second region of the flexible tube over the distal end of the funnel so that the flexible tube captures the clot and pulls the clot proximally into the respective funnel interior and catheter lumen.2. The method of claim 1 , wherein capturing the clot and pulling the clot proximally into the respective funnel interior and catheter lumen comprises compressing the clot and releases fluid from the clot laterally out of fluid egress openings in a proximal portion of the funnel.3. The method of claim 1 , further comprising ...

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Номер записи: 89
24-03-2022 дата публикации

Rotating frame thrombectomy device

Номер: US20220087700A1
Автор: Avi Shalgi, David Vale
Принадлежит: Neuravi Ltd

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.

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Номер записи: 90
15-03-2018 дата публикации

More Efficiently and Effectively Removing Stenotic And Restenotic Plaque From Arteries

Номер: US20180070965A1
Автор: Kelly Thomas K., Wiita Thomas A.
Принадлежит:

Technology by which, collectively, deposits of stemotic and restenotic plaque are more efficiently and more effectively removed from arteries is disclosed, including kit and method techniques by which arterial plaque is sequentially treated through a surgically-created arterial opening, followed by sequential arterial insertion and removal of medical instruments and appliances by which a bond at the interface between the plaque and the arterial well is first disunified and destrengthened with the arterial wall materially stretched away from the plaque, after which plaque is excavated and removed and, in some instances, a novel tubular graft and encased proximal stent adheringly installed. 1. A method of excavating plaque from an artery , comprising the acts of:providing a surgically-created opening in an artery;inserting a dissecting instrument into the artery through the opening;positioning the dissecting instrument at an interface between plaque in the artery and a portion of the arterial wall;radially expanding the arterial wall a predetermined distance away from the interface while separating plaque from the arterial wall utilizing the dissecting instrument for both to thereby accurately excavate a quantity of plaque from the remaining arterial wall exactly along the interfaceremoving the excavated plaque from the artery through the opening.2. A method of excavating plaque from an artery , comprising the acts of;positioning a dissecting instrument at an interface between plaque and an adjacent part of an arterial wall;expanding the arterial wall outwardly beyond the limits of the plaque to materially stretch the arterial wall while displacing the instrument along the interface and accurately severing the plaque from the remaining arterial wall while the adjacent arterial is being stretched.3. A method according to wherein the expanding act is performed by the dissecting instrument.4. A method according to wherein the expanding act is performed by other than the ...

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Номер записи: 91
15-03-2018 дата публикации

SELF-ROLLING THROMBECTOMY APPARATUSES AND METHODS

Номер: US20180070968A1
Автор: GREENHALGH E. Skott, Wallace Michael P.
Принадлежит: STRYKER CORPORATION

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 , ...

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Номер записи: 92
15-03-2018 дата публикации

More efficiently and effectively removing plaque from arteries

Номер: US20180070978A1
Автор: Wiita Thomas A.
Принадлежит:

Multi-procedural technology by which, collectively, deposits of plaque are more efficiently and more effectively removed from arteries is disclosed, including kit and method techniques by which arterial plaque is sequentially treated through a single surgically-created arterial opening, followed by sequential arterial insertion and removal of medical instruments and appliances by which a bond at the interface between the plaque and the arterial well is first disunified and destrengthened after which plaque is excavated and removed and, in some instances, a novel tubular graft and encased proximal stent adheringly installed. 1. A multi-disciplinary method for more efficiently and effectively removing plaque from an artery , comprising the acts of:creating a medically-acceptable multiple purpose opening in an artery having an arterial wall and a plaque-infested region in the artery:introducing a medical appliance through the multiple purpose arterial opening and placing the medical appliance within the plaque infested region;causing the medical appliance to engage the plaque in such a way as to at least partially disunify a bond between the plaque and the arterial wall at an interface therebetween thereby destrengthening the bond;removing the medical appliance from the artery through the opening;inserting a plaque excavating appliance through opening;excavating plaque from the arterial wall along the disunified interface using the plaque excavating appliance;removing the plaque excavating appliance from the artery through the opening;removing the excavated plaque from the artery through the opening;closing the opening in a medically-acceptable way.2. A multi-disciplinary method for more efficiently and effectively removing plaque from an artery , comprising the acts of:creating a medically-acceptable multiple purpose opening in an artery having an arterial wall and a plaque-infested region in the artery:introducing a medical appliance through the multiple purpose ...

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Номер записи: 93
07-03-2019 дата публикации

Device for clean excision of a heart valve

Номер: US20190069920A1
Автор: Benoit Raucent, Khanh Tran Duy, Parla Astarci, Xavier Bollen
Принадлежит: Universite Catholique de Louvain UCL

A device ( 100 ) is presented for excision of a heart valve comprising a first ( 120 ) and second ( 140 ) clamping element in mutual sliding relation, each having an annular clamping surface ( 122, 142 ) which annular clamping surfaces ( 122, 142 ) mutually co-operate to form an annular clamping region ( 166 ) configured for clamping a heart valve annularly, and a slidable cutting element ( 160 ) slidable and rotatable with respect to the annular clamping region ( 166 ) configured to circularly excise the heart valve, wherein the slidable cutting element ( 160 ) is displaceable within an annulus of the annular clamping zone region ( 166 ).

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Номер записи: 94
18-03-2021 дата публикации

Devices and methods for removal of acute blockages from blood vessels

Номер: US20210077134A1
Автор: Alan KEANE, Brendan Casey, Daniel King, David HARDIMAN, David Vale, Eamon Brady, Jacqueline O'Gorman, Kevin McArdle, Maeve HOLIAN, Michael Gilvarry
Принадлежит: Neuravi Ltd

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.

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Номер записи: 95
18-03-2021 дата публикации

Vacuum-Actuated Surgical Graspers

Номер: US20210077138A1
Автор: Chumfong Isabelle, Clark Orlo H., Rangarajan Sachin, Roux Romain Christophe, Suh Insoo
Принадлежит:

In one embodiment, a vacuum-actuated surgical grasper includes a suction head adapted to interface with patient tissue, a suction tube connected to and in fluid communication with the suction head, and a handle connected to the suction tube, the handle comprising an internal passage in fluid communication with the suction tube through which fluid from the suction tube can flow and a pivotable actuation lever that controls this flow through the passage. 1. A vacuum-assisted surgical grasper comprising:a suction head adapted to grasp patient tissue using only suction;a suction tube connected to and in fluid communication with the suction head; anda handle connected to the suction tube, the handle comprising a body, a fixed grip element extending downward from the body and configured to be gripped by fingers of the user, and a pivotable actuation lever extending downward from the body and configured to be actuated by the user's thumb, the body including an internal passage in fluid communication with the suction tube through which fluid from the suction tube can flow, wherein flow through the passage and grasping of the patient tissue are enabled by the user by pivoting the actuation lever toward the grip element using the thumb.2. The grasper of claim 1 , wherein the handle comprises a body that includes a distal channel and a proximal channel that both form part of the internal passage.3. The grasper of claim 2 , wherein the actuation lever includes a pivot head about which the actuation lever can be pivoted claim 2 , the pivot head being received in a cavity of the handle body that is in fluid communication with the distal and proximal channels.4. The grasper of claim 3 , wherein the pivot head comprises a central channel that can be aligned with the distal and proximal channels of the handle body to open the internal passage.5. The grasper of claim 4 , wherein the central channel does not align with the distal and proximal channels when the actuation lever is in an ...

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Номер записи: 96
19-03-2015 дата публикации

FREE END VASCULAR TREATMENT SYSTEMS

Номер: US20150080941A1
Автор: Janardhan Vallabh, Janardhan Vikram
Принадлежит:

Vascular treatment and methods include a plurality of self-expanding bulbs and a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Joints between woven structures and hypotubes include solder. Woven structures include patterns of radiopaque filaments measureable under x-ray. Structures are heat treated to include at least shapes at different temperatures. A catheter includes a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Heat treating systems include a detachable flange. Laser cutting systems include a fluid flow system. 1. (canceled)2. (canceled)3. (canceled)4. A device for treating a thrombus in a vessel , the device comprising: [ a plurality of radiopaque filaments, and', 'a plurality of shape memory filaments,, 'the plurality of filaments comprising, 'the textile structure configured to self-expand from a radially collapsed state to a radially expanded state upon release from a microcatheter,', 'the textile structure having a braid angle between 130° and 160°,', 'the textile structure having a pics per inch between 150 and 190,', hills, and', 'valleys between the hills;, 'the textile structure, in the radially expanded state, comprising an undulating shape comprising], 'a textile structure comprising a plurality of filaments woven together,'}a delivery system having a distal end; anda bond comprising the distal end of the delivery system fixably coupled to a first end of the textile structure, wherein a second end of the textile structure is free.5. The device of claim 4 , wherein the first end is a proximal end of the textile structure.6. The device of claim 4 , wherein the bond comprises the first end of the textile structure inlay bonded to the distal end of the delivery system.7. The device of claim 4 , wherein the bond comprises the first end of the textile structure overlay bonded to the distal end of the delivery system.8. The device of claim 4 , wherein the textile structure comprises a ...

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Номер записи: 97
05-06-2014 дата публикации

Treatment method

Номер: US20140155692A1
Автор: Kunihide Kaji, Masatoshi Sato
Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP

A treatment method on tissues in a body cavity includes: a first step of forming a hole for communicating first body tissue with second body tissue while both are in close contact with each other; and a second step of endoscopically inserting a treatment device into the second body tissue through the hole.

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Номер записи: 98
05-06-2014 дата публикации

CANNULOTOME

Номер: US20140155695A1
Автор: Davis John, Jansen Lex P., Kume Stewart, To John, Twardzik Wendy
Принадлежит: Spine View, Inc.

Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. A bone removal device includes a cannulotome with an endoscopic imaging lumen. Optionally, an endoscope retaining device can be used to facilitate advancement of the endoscope through the cannulotome. 123.-. (canceled)24. A method for spinal surgery comprising:inserting a cannulotome with a proximal handle, an elongate shaft with a lumen therethrough, and a tapered cutter at the distal end of the shaft through an introducer cannula;advancing an endoscope assembly comprising an endoscope coupled to an endoscope retaining device through the lumen of the cannulotome, wherein the endoscope retaining device comprises a channel therethrough;advancing the introducer cannula to a target spine region;tapping the cannulotome handle with a mallet to remove bony or calcified tissue while simultaneously visualizing the removal of the tissue through a lumen of the cannulotome.25. The method of claim 24 , further comprising infusing fluid through the channel of the endoscope retaining device to the target spine region.26. The method of claim 24 , wherein the distal cutter of the cannulotome comprises orientation markings claim 24 , and wherein advancing the endoscope assembly comprises positioning the endoscope assembly according to the orientation markings.27. The method of claim 24 , further comprising acquiring endoscope images during or immediately after the application of force to the cannulotome.28. The method of claim 26 , further comprising rotating the cannulotome within the introducer cannula to contact a different tissue region.29. The method of claim 27 , further comprising drawing up the removed tissue through the cannulotome shaft lumen using a grasping tool.30. The method of claim 28 , further comprising discarding the endoscope retaining device at the end of the procedure. This application is a ...

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Номер записи: 99
23-03-2017 дата публикации

TISSUE GATHERING BASKET ENHANCEMENTS

Номер: US20170079655A1
Автор: Dickson Todd, George Abby, Malenowski Sam, MOORE Brian, Walters Worth
Принадлежит:

Several embodiments disclosed herein relate to apparatus and methods for tissue gathering. In some examples, disclosed is a tissue gathering device that includes a basket and a cylindrical shaft. The basket can include a plurality of tines and the cylindrical shaft can include a lumen that is disposed about a portion of the proximal end of the basket. In some examples, the basket can include 4, 6, 7, or 8 tines. The tines of the basket can have a plurality of different configurations. 1. A tissue gathering device , comprising:a basket comprising a plurality of tines; anda cylindrical shaft comprising a lumen, wherein the cylindrical shaft is disposed about a portion of the proximal end of the basket.2. The device of claim 1 , wherein the material of the basket is selected from an elastic polymer such as polyurethane claim 1 , polyethylene terephthalate claim 1 , or polyethyleneoxide or metal such as nitinol claim 1 , cobalt-chromium.3. The device of wherein the basket comprises at least about 4 claim 1 , 6 claim 1 , 7 or 8 tines.4. The device of claim 1 , wherein the plurality of tines are of different lengths.5. The device of claim 1 , wherein the plurality of tines form an oval when the plurality of tines of the basket is depressed onto a surface.6. The device of claim 1 , wherein the plurality of tines are comprised of a first bend and a second bend claim 1 , wherein the first bend extends the tine radially outward claim 1 , and the second bend extends the tine radially inward along the length of the tine.7. The device of claim 6 , wherein the second bend has an angle of between about 0-180 degrees.8. The device of claim 6 , wherein the second bend has an angle of between about 0-20 claim 6 , 20-40 claim 6 , 40-60 claim 6 , 60-80 claim 6 , 80-100 claim 6 , 100-120 claim 6 , 120-140 claim 6 , 140-160 or 160-180 degrees.9. The device of claim 1 , wherein each of the plurality of tines has a diameter that widens along the length of each of the plurality of tines ...

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Номер записи: 100