УНИВЕРСАЛЬНЫЙ ЭНДОДИССЕКТОР

Изобретение относится к медицинской технике, в частности к хирургическим инструментам, в том числе эндоскопическим, для выполнения операций рассечения тканей, диссекции, захвата тканей, электрокоагуляции. Цель изобретения - создание устройства, позволяющего использовать другие, более эффективные факторы воздействия на ткани с целью диссекции, с расширенными функциями и возможностями за счет сочетания с режущим устройством. Универсальный эндодиссектор содержит полый корпус в виде реакционной камеры, один конец которой снабжен направляющим соплом, соединенный с резервуаром, где субстрат находится в жидком состоянии, а нагревательный электрический элемент выполнен с возможностью подачи тепла через корпус. Изобретение позволяет снизить травматичность при проведении операции. 2 з.п. ф-лы, 8 ил.

СПОСОБ ЛЕЧЕНИЯ ЭХИНОКОККОВОЙ КИСТЫ ПЕЧЕНИ ТИПА СЕ2В, СЕ3В

Изобретение относится к медицине, а именно к абдоминальной хирургии, и может быть использовано для лечения эхинококковой кисты печени типа CE2b, CE3b. Под контролем УЗИ производят пункцию наибольшей камеры и ее дренирование. Через отдельный мини-доступ каудальнее установленного дренажа осуществляют радиочастотную абляцию с нагреванием электродов внутри полости кисты до 100-105°С. Процедуру проводят до полной деструкции внутренних перегородок кисты с отхождением оставшегося содержимого кисты по установленному дренажу. Способ обеспечивает полную деструкцию внутренних перегородок эхинококковой кисты типа CE2b, CE3b, позволяет улучшить санацию дренируемой эхинококковой кисты типа CE2b, CE3b за счет аспирации и дефрагментации хитиновой оболочки. 3 ил., 1 пр.

Способ комбинированного лечения крупных многокамерных пиогенных абсцессов печени

Изобретение относится к медицине и может быть применимо для комбинированного лечения крупных многокамерных пиогенных абсцессов печени. Производят чрескожную чреспеченочную пункцию и дренирование абсцесса печени под ультразвуковой и рентгентелевизионной навигацией по наиболее короткому дренажному пути стилет-катетером диаметром от 7 до 14 Fr с последующей эвакуацией экссудата, затем с использованием игольчатого электрода длиной от 10 до 25 см с длиной рабочей части от 2 до 4 см выполняют пункцию абсцесса печени с последующей его радиочастотной термоабляцией в течение 15 минут с достижением температуры в очаге после воздействия в диапазоне от 70 до 100 градусов Цельсия. Способ позволяет минимизировать операционную травму, создать оптимальные условия для санации очага инфекции. 1 пр., 6 ил.

ХИРУРГИЧЕСКИЕ УЗЕЛ, СИСТЕМА И ЭЛЕКТРОДНЫЙ УЗЕЛ

Vorrichtung zum Behandeln einer hohlen anatomischen Struktur

Eine Vorrichtung zum Behandeln einer hohlen anatomischen Struktur, HAS, wobei die Vorrichtung umfasst: einen Katheter-Schaft (101) einen an einem Ende des Katheter-Schafts angebrachten Ballon (100); und ein ausdehnbares resistives Element (98, 102) auf dem Ballon (100), wobei der Ballon (100) ausdehnbar ist, um das resistive Element in Apposition mit einer Wand der HAS zu platzieren.

EINHEIT AUS BEHEIZTER SPITZE UND KATHETER

GERAET FUER DIE "ANGIOPLASTY".

KATHETER ZUR ABLATION MITTELS HOCHFREQUENZ

Intrauterine Ablation System

Brennerspitze für Glühkaustik

Surgical laser knives

A surgical knife includes a handle supporting a diamond blade. An Nd/YAG laser is optically coupled by a bundle of optical fibres to the blade. The arrangement enables the blade to cauterize tissue being incised by the knife. The selection of the material of the blade and the laser provides a laser knife of extended useful life. The heating of the diamond blade by the laser provides the blade with an unexpectedly increased cutting and cauterizing performance.

Electrically heated cauteries

Cauteries are used to cauterise or seal blood vessels and other tissue during surgical operations. An electrically heated cautery is in the form of a U-shaped electrical resistance heating element 1 of surgically acceptable material. The element 1 has a necked portion 3, (that is a portion of reduced cross-section) which becomes hotter than the remainder of the element in response to the passage of an electrical current. A member 2 of different material to the element 1 is made to contact the necked portion 3 to form with the element 1 a thermocouple junction 4. By this means an accurate indication of the temperature of the necked portion can be ascertained and by means of the circuit disclosed its temperature accurately maintained. ...

THERMISTOR CIRCUIT IN PARTICULAR FOR A WHEN SURGICAL GUMPTION AND/OR COAGULATION ELEMENT SERVING THERMISTOR.

SKALPELLE.

DEVICE TO KAUTERISATION

MODIFICATION OF THE AIRWAYS BY USE OF ENERGY

MODIFICATION OF THE AIRWAYS BY USE OF ENERGY

INTRAUTERINES ABLATION SYSTEM

DEVICE FOR THE PRODUCTION OF AN ANATOMICAL CAVITY WITH LAPAROSKOPI INTERFERENCES

BALLOON CATHETER FOR THE TREATMENT OF A DUKTUS OR A CAVE IN MAMMALS WITH PRESSURE OR WARMTH

BALLONDISSEKTOR

Veterinary equipment for the treatment of the Vagina

Bronchial stenter

Electrothermal device for coagulating, sealing and cutting tissue during surgery

Matter manipulator with conductive coating

Abstract A device including a tissue manipulator, a conductive coating and at least one connector area. For example, the tissue manipulator may be scissors, clip appliers or clips, staplers and staple of a vessel sealing device. The conductive coating may be applied to the clip, staple or jaws of the scissors or sealing device. Electrical energy can be supplied through areas of contact (connect - or areas) - such as between an anvil and a pusher of the stapler and the conductive coating on the staple. The conductive coating can be energized along with mechanical application of the manipulator to transform and facilitate attachment of tissue layers.

Induction coil assembly for uterine ablation and method

A vapor delivery device includes an induction coil system. The induction coil system can include a coiled fluid tube, a coiled wire, a capsule between the coiled fluid tube and the wire, and a cooling fluid supply configured to force a cooling fluid through the capsule across the coiled wire. The induction coil system can include a closed loop ferrite core, a wire coiled around a first portion of the ferrite core, and a fluid tube coiled around a second portion of the ferrite core. A wire coil can be contained in a cartridge system removably coupleable to a disposable vapor delivery device. The system can include a fluid flow controller and induction power regulation to maintain a specific operating pressure range for vapor within a uterus or other bodily cavity, tract, or duct.

Modification of airways by application of energy

THERMAL ABLATION WITH DEPLOYABLE CAGE

Device for local heat treatment of tissue

Magnetically guided atherectomy

Method and device for supply of heat

SELF-LIMITING ELECTROSURGICAL RETURN ELECTRODE

MULTI-ARM CATHETER WITH SIGNAL TRANSMISSION OVER BRAID WIRES

A medical probe includes an insertion tube for insertion into a patient's body, and multiple arms that are attached to a distal end of the insertion tube. Each arm includes a braid of wires that traverse the arm. Multiple electrodes are coupled to the arms and electrically connected to respective selected wires of the braid. The electrodes are configured to exchange signals over the wires with a system external to the patient body. 24//is1 22dR 1 n-i 14 FIG. 2 55 54 ...

Circumferential ablation device assembly and method

Articulating endometrial ablation device

Method and device for heat treatment of body tissue

Device for local heat treatment of tissue

Modification of airways by application of energy

SURGICAL INSTRUMENT HAVING SELF-REGULATED ELECTRICAL PROXIMITY HEATING OF ITS CUTTING EDGE AND METHOD OF USING THE SAME

The cutting edge of a scalpel blade is heated to a preselected constant temperature range by conduction of high frequency current through the blade of ferromagnetic material in a region thereof which is in close proximity to a conductor positioned along the cutting edge. Selective heating of regions of the cutting edge that are locally cooled by the tissue contact during surgical cutting is provided by constructing the blade of ferromagnetic materials that have a Curie point in the operating temperature range and that provide large increases in magnetic permeability for temperature decrements below the Curie point.

SURGICAL INSTRUMENT HAVING SELF-REGULATING RADIANT HEATING OF ITS CUTTING EDGE AND METHOD OF USING THE SAME

The cutting edge of a scalpel blade is heated to an elevated preselected constant operating temperature for cutting tissue with simultaneous hemostasis by radiant heating of the blade in the region along the cutting edge. Radiant energy is contained within the blade by a reflective coating over the transparent or translucent blade material. Heating along the cutting edge is provided by the disposition of a radiation-absorptive material beneath the reflective coating in the region along the cutting edge. Selective heating of regions of the cutting edge that are locally cooled by contact with tissues during surgical cutting is provided for by fabricating the radiation-absorptive element of the blade of a thermochromic material that exhibits a substantial increase in absorption coefficient for a temperature decrement within the operating temperature range.

METHOD AND APPARATUS FOR ANGIOPLASTY

The region surrounding the balloon utilized in percutaneous transluminal coronary angioplasty is heated by means within the balloon or within the skin of the balloon upon inflation of the balloon such that disrupted tissues of the plaque in the arterial wall are heated in order to fuse together fragmented segments of tissue and to coagulate blood trapped within dissected planes of tissue and within fissures created by wall fracture such that upon subsequent balloon deflation a smooth cylindrically-shaped channel results, thereby to prevent collapse of any flap of material which could cause either abrupt arterial closure and an acute myocardial infarction or gradual restenosis at the site of balloon inflation.

APPARATUS FOR MAPPING AND COAGULATING SOFT TISSUE IN OR AROUND BODY ORIFICES

A probe that mays be used to create circumferential lesions in body tissue and, in some implementations, may also be used to perform mapping functions. The probe includes a collapsible/expandable structure that supports electrodes or other operative elements against the body tissue.

MATTER MANIPULATOR WITH CONDUCTIVE COATING

A device including a tissue manipulator, a conductive coating and at least one connector area. For example, the tissue manipulator may be scissors, clip appliers or clips, staplers and staple or a vessel sealing device. The conductive coating may be applied to the clip, staple or jaws of the scissors or sealing device. Electrical energy can be supplied through areas of contact (connector areas) - such as between an anvil and a pusher of the stapler and the conductive coating on the staple. The conductive coating can be energized along with mechanical application of the manipulator to transform and facilitate attachment of tissue layers.

IMPROVED ENERGY DELIVERY DEVICES AND METHODS

... ²This relates to methods and devices for improving treatment to a wall, a ²cavity or ²passageway with a medical device when used in tortuous anatomy.² ...

SKIN PERMEATION DEVICE FOR ANALYTE SENSING OR TRANSDERMAL DRUG DELIVERY

Devices, systems, kits for increasing the skin's permeability controlled by measured skin electrical parameter are described herein. They may be used for transdermal drug delivery and/or analyte extraction or measurement. The controlled abrasion device contains (i) a hand piece, (ii) an abrasive tip (20), (iii) a feedback control mechanism, (iv) two or more electrodes (42,44 ), and (v) an electrical motor. Preferably the feedback control mechanism is an internal feedback control mechanism.

GASTRIC RESTRICTION DEVICES WITH FILLABLE CHAMBERS AND ABLATION MEANS FOR TREATING OBESITY

The invention relates to a gastric restraining device for treating excessive weight or obesity in mammals. The gastric restraining device includes an elastomeric sheet configured to be placed around a stomach of a mammal, an ablation device attached to the elastomeric sheet, the ablation device configured to emit energy toward an outer surface of the stomach when the elastomeric sheet is placed around the stomach, and an energy device coupled to the ablation device to generate the energy and to transfer the energy to the ablation device.

EMBOLIC COIL DETACHMENT MECHANISM WITH HEATING ELEMENT AND KICKER

Provided herein are a system, method, and apparatus for delivering a therapeutic device, e.g. an embolic coil, from a delivery tube at a target site in a patient's body. A heating element is disposed in the delivery tube that can be actuated remotely, and a layer of low temperature adhesive is applied at the heating element to retain the therapeutic device. The kicker in the form of, for example, a compressed spring is mounted within the delivery tube so as to be in contact with the therapeutic device for applying a constant ejector force that is countered by the adhesive force of the low temperature adhesive. When the heating element is actuated, the spring's ejector force overcomes the softened adhesive's adhesive force to force the therapeutic device out of the delivery tube.

INTRAVASCULAR ARTERIAL TO VENOUS ANASTOMOSIS AND TISSUE WELDING CATHETER

A device for creating an arteriovenous (AV) fistula comprises an elongate member, a distal member connected to the elongate member and movable relative to the elongate member, and a heating member disposed on at least one of the movable distal member and the elongate member. The distal member comprises structure for capturing tissue to be cut to create the fistula, and the heating member is adapted to cut through the tissue to create the fistula. The elongate member comprises an elongate outer tube. A shaft connects the distal member to the elongate member, and is extendable and retractable to extend and retract the distal member relative to the elongate member.

HOT TIP CATHETER ASSEMBLY

A hot tip catheter assembly (3) is disclosed which resolves atherosclerotic plaque buildup in vivo. The catheter has a heater (12), a cap (14), thermocouple, power leads (22a, 22b), thermocouple leads (20), and a central distal lumen (17) to position the catheter within the artery. The catheter tip has a thin, non-adhesive coating (25) of a hard, heat-conducting material. The thermocouple is used to continuously evaluate the temperature at the tip of the catheter, and the temperature is then regulated by a computer controlled feedback system. The catheter can completely melt the buildup without damage to the artery by direct contact with the plaque, without use of balloon catheter angioplasty. Until further notice, any designation of "DE" in any international application whose international filing date is prior to October 3, 1990, shall have effect in the territory of the Federal Republic of Germany with the exception of the territory of the former German Democratic Republic.

Therapeutisches Gerät

SICHERHEITSSCHALTVORRICHTUNG ZUR UEBERWACHUNG DES LEISTUNGSSCHALTGLIEDES EINES ELEKTRISCHEN STROMVERBRAUCHERS.

Veterinärmedizinisches Gerät zur Behandlung der Vagina

Sicherheitsschaltvorrichtung zur Überwachung des Leistungsschaltgliedes eines elektrischen Stromverbrauchers

Appareil médical pour le traitement par voie hypodermique

[...][...].

THERMISTOR CIRCUIT FOR A SURGICAL GUMPTION AND/OR COAGULATION INSTRUMENT.

Energy treatment system, energy control device, and energy treatment tool

ELECTRICAL APPLIANCE FOR THE THERAPEUTIC TREATMENT OF THE HEMORROIDES

DEVICE TO COAGULATE BIOLOGICAL FABRICS

SURGICAL INSTRUMENT COMPRISING FOR ITS EDGE A HEATING BY RADIATION

DEVICE INTENDS FOR THE ADMINISTRATION CALORIES IN A FABRIC, VESSEL OR SURGES HUMAN OR ANIMAL

Dispositif destiné à l'administration de calories dans une cavité, un tissu ou un vaisseau, caractérisé en ce que : - il se présente sous la forme d'un fil de cuivre isolé, sur toute la longueur duquel est serti un tube présentant une résistivité supérieure à 20 µΩ.cm, - le fil de cuivre est en contact par son extrémité distale avec ledit tube, - le tube est entouré sur partie de sa longueur d'au moins un cylindre mobile présentant une résistance électrique inférieure à 20 µΩ.cm, - le cylindre mobile et le fil de cuivre présentent des moyens de connexion à un générateur de courant ...

METHODS AND SYSTEMS FOR USE IN CONTROLLING TISSUE ABLATION VOLUME BY TEMPERATURE MONITORING

BIPOLAR CAUTERY INSTRUMENT

SEPARABLE HARMFUL GAS INHALATOR FOR LAPAROSCOPIC SURGERY INSTRUMENT

The present invention relates to a separable harmful gas inhalator for laparoscopic surgery instrument. More specifically, the present invention comprises: a head part attached to the front end of a surgery instrument to inhale harmful gas generated from a procedure of cutting and burning a lesion or conducting hemostasis from the affected area; a hose part extended from the rear end of the head part to a predetermined length and connected with an extra inhaling device to continuously collect and move the harmful gas inhaled through the head part; and a flow rate control valve installed in a side of the hose part to enable a user to control a flow rate of the harmful gas. The head part is made of a shape-changeable and shape-recoverable material to be matched with various surgery instruments regardless of size as well as adding a tube type structure including a combination hole penetrating the center in a longitudinal direction to be penetrated by the surgery instrument. COPYRIGHT KIPO ...

Eletrodo de retorno eletro-cirúrgico auto limitante

SYSTEMS AND METHODS FOR CONTROLLING USE AND OPERATION OF A FAMILY OF DIFFERENT TREATMENT DEVICES

A system for controlling a treatment device generates a graphical interface that visually prompts a user in a step-wise fashion to use the treatment device to perform a process of forming a pattern of lesions that extends both circumferentially and axially in different levels in a body region. The graphical interface displays for the user a visual record of the progress of the process from start to finish and guides the user so that so that individual lesions desired within a given level are all formed, and that a given level of lesions is not skipped.

METHOD AND INSTRUMENT FOR THERMAL SUTURE CUTTING

Novel suture removal instrument and technique are described herein. The invention utilizes a newly designed thermal filament to allow the tip of the suture removal instrument to be slipped under the stitch in order to heat and cut the stitch. Current suture removal techniques utilize scissors, forceps, and/or scalpels. These techniques, which are well known in the art, are problematic because they exert tension on the stitch and are associated with patient. discomfort. Small stitches add to the difficulty of suture removal because they have less suture laxity for scissor insertion. The present invention therefore allows for more rapid suture removal with less patient discomfort and at a competitive or lower cost.

METHOD FOR DISSECTING TISSUES, DEVICE FOR SIMULTANEOUSLY DISSECTING AND COAGULATING THE SAME AND VARIANTS THEREOF

Cette invention se rapporte au domaine des techniques médicales, et concerne des instruments chirurgicaux, notamment endoscopiques, qui permettent d'effectuer des opérations de découpages de tissus, de dissection et de coagulation. Cette invention concerne essentiellement la mise en oeuvre d'un procédé moins traumatique permettant d'effectuer une dissection sans déperdition tout en coagulant les tissus. On utilise à cette fin un appareil de dissection et de coagulation se présentant sous forme d'un générateur de vapeurs gazeuses qui peut être réalisé séparément ou être associé à un instrument chirurgical, notamment sur un dispositif de coupe de type ciseaux endoscopiques ou sur une électrode unipolaire. Le générateur de vapeurs gazeuses va envoyer de manière précise vers les tissus un flux de vapeurs ou de vapeurs gazeuses à haute température de manière à effectuer une dissection et une coagulation, la vitesse de ce flux étant suffisamment élevée pour briser et stratifier les tissus. Ce ...

SELF-LIMITING ELECTROSURGICAL RETURN ELECTRODE

A removable semi-insulating sheet for use in self-limiting electrosurgical return semi-insulating sheet for use with electrosurgery. Through the selection of impedance characteristics for the electrode materials of the principal body of the semi-insulating sheet, and through tailoring of semi-insulating sheet geometries, the return electrode of the present invention is self-regulating and self-limiting as to current density and temperature rise so as to prevent patient trauma. The semi-insulating sheet has an effective bulk impedance equal to or greater than about 4,000 Ω cm. The effective bulk impedance of the sheet may arise from resistive components, capacitive components, inductive components, or combinations thereof. The configuration of the presently described return electrode allows the electrode to self-limit the electrode's current densities, thereby preventing burning of a patient during surgery.

PHYSIOLOGIC LOW STRESS ANGIOPLASTY

Systems and methods for dilation of a body lumen, using an expandable dilatation catheter (34) to simultaneously heat and apply pressure to tissue of the lumen and to expand and dilate the lumen including means constructed to produce and/or detect physiological response of the heated tissue to applied pressure. The catheter (34) has an inflatable balloon (8) at the end of catheter shaft (10) and heating contacts (22 and 24). Module (54) controls the catheter apparatus.

DEVICE FOR THERMAL ABLATION OF A CAVITY

An apparatus and method for causing necrosis of tissue and specifically intended for thermal ablation of the uterine cavity to cauterizing the endometrial tissue. The apparatus includes a liquid-tight, liquid filled system having a distal flexible member (14); a proximal flexible member (26); and a catheter (16) joining and providing a liquid path between these distal and proximal members. The apparatus further includes a pressurizable pneumatic chamber into which the proximal flexible member is inserted and a means to controllably heat the contents of the pneumatic chamber. The system operates to: first withdraw substantially all of the liquid into the proximal flexible member contained within the pressurizable pneumatic chamber; second to heat this liquid to a temperature such that it can cause tissue necrosis; and third to force the heated liquid from the proximal flexible member into the distal flexible member where it is maintained for a predetermined time and at a predetermined pressure ...

BALLOON DEVICE FOR USE IN SURGERY AND METHOD OF USE

A ballon device useful for dissecting tissue or retracting tissue for the purpose or providing space for laparoscopic surgery includes a ballon (87) having at least two protuberances (88) in a distal region. The present device is particularly useful in bladder neck suspension, and hernia repair procedures.

ENDOMETRIAL BALLOON ABLATION CATHETER HAVING HEATER

Un système d'ablation thermique de tissus endométriaux comprend une vessie dilatable (40), un cathéter (20) contenant une ou plusieurs lumières auxquelles la vessie (40) est fixée, un élément chauffant (120) situé à l'intérieur du cathéter, un manche (50) de cathéter ainsi qu'une unité de commande (200) reliée de façon amovible au manche (50). L'unité de commande (200) contient toutes les alimentations nécessaires de même que des dispositifs (210) de commande et d'affichage de la température, de la pression de fluide et autre. Le manche (50) et le cathéter (20) servent de conduit pour l'alimentation, les dispositifs de commande (200) et d'affichage (210). Le manche (50) contient également un orifice (52) à travers lequel une solution salée ou tout autre liquide acceptable sur le plan physiologique peut être introduit sous une pression suffisante pour gonfler la vessie (40) à la pression voulue. L'élément chauffant (120) est situé dans le cathéter (20) à proximité de la vessie (40). La vessie ...

Ablation instrument and method for cutting, fragmenting and/or removing material

Ablation instrument is provided for cutting, fragmenting and/or removing material of an object, containing a carrier substrate, having at least one resistance-heated layer which is disposed on the substrate and made of doped diamond or diamond-like carbon (DLC) and also at least one electrical lead and at least one electrical discharge which are both electrically connected at different places by the resistance-heated layer.

Arrangement for cell sampling

An arrangement for taking a sample of cells from a suspicious lesion or a tumor with the so called fine needle aspiration technique, provides a good penetration of tumors, especially small and/or hard fibrous tumors, and in the meantime yielding an increased amount of cells in the sample, by applying a longitudinal movement to the needle when the needle is penetrating the tumor and by applying both a rotational and a longitudinal movement to the needle when the needle is positioned inside the tumor. The arrangement is further provided with heat generating elements in order to apply a short pulse of heat to the needle in order to lower the risk for the tumor to spread.

Methods for treating airways

This relates to treating an asthmatic lung and more particularly, relates to advancing a treatment device into the lung and treating the lung with the device. This also includes additional steps of treating the airway wall, applying energy or heat to the airway wall in an asthmatic lung.

Apparatus and method for dissecting tissue layers

An expansible tunneling apparatus and associated methods for creating an anatomic working space for a surgical procedure. Various embodiments of one and two piece apparatus that permit laparoscopic observation both during tunneling and during subsequent balloon dissection are disclosed. In a disclosed one piece embodiment, a tubular member has a bore extending therethrough and an open distal end. A lip is formed in the distal end of the tubular member to capture the distal tip of a laparoscope that is inserted into the tubular member to permit observation of the procedure both during tunneling to a desired location and during subsequent balloon inflation. An elongated neck of the balloon is secured to the tunneling member. The elongated neck permits the tubular member to be withdrawn slightly from the balloon after inflation to facilitate observation. After the balloon has been advanced to the desired location in the body it is inflated through a balloon inflation lumen to cause the balloon ...

Apparatus and method for treatment of an intervertebral disc

A system and method for approaching the intervertebral disc through a percutaneous insertion from the back of a patient for thermal or electromagnetic treatment of an intervertebral disc, includes an elongated probe member having a guidable region adjacent its distal end with an undulating groove defined in its outer surface. The undulating groove is dimensioned to facilitate bending of the guidable region in at least one radial direction of movement relative to a longitudinal axis of the thermal probe. Preferably, the guidable region includes a plurality of undulating grooves, whereby adjacent undulating grooves are longitudinally spaced with respect to each other. The undulating grooves each define a sinusoidal configuration which may be arranged about an undulating axis extending in oblique relation to the longitudinal axis. The guidable region also includes a longitudinally extending backbone which resists bending of the guidable region in a radial direction of movement. The apparatus ...

Apparatus and methods for fallopian tube occlusion

A sterilization device (10) is provided having a flexible housing element (12) that is smaller in diameter than the diameter of the lumen of the isthmic portion of the fallopian tube, a heating element (14) carried by the housing element adjacent to its distal end, and an energy source (18) coupled to the heating element such that when the energy source is energized the temperature of the heating element will be increased. A procedure is described for inserting the sterilization device (10) through the uterus and into the isthmic portion of the fallopian tube where the heating element (14) is energized and the heat generated destroys the mucosal layer and damages the muscular layer of the fallopian tube wall inducing sufficient scarification to occlude the fallopian tube.

Heating catheters

A catheter device and method for heating tissue, the device having a catheter shaft constructed for insertion into a patient's body, and at least one chamber mounted on the catheter shaft. The catheter shaft has at least one lumen for fluid flow through the shaft. The chambers are defined by walls that are at least in part expandable. Fluid flows, through the lumens, between the chambers and a fluid source outside the body. The chambers can be filled with the fluid after they have been placed within the body. A heating device heats liquid within at least one of the chambers, so that heat is transmitted from the liquid to surrounding tissue by thermal conduction through the wall of the chamber. Means are provided for selectively directing heat transmission toward a selected portion of surrounding tissue. The chambers are fillable with fluid separately from each other, so that the chambers can occupy any of a plurality of possible total volumes. By selecting the total volume of chambers, ...

Catheter with radiofrequency heating applicator

Radiofrequency (RF) heating applicator, located at the distal end of a coaxial line catheter, produces deeper and more uniform heat dissipation. The active applicator element is a conductor helix fed via the coaxial line. The applicator has provisions for interception of intracardiac electrogram signal. A cardiac ablation system using the above catheter, ablates cardiac tissue responsible for ventricular tachycardia. The ablation system provides means to monitor intracardiac electrograms and to control the RF power. A variation of the helical applicator can be used in a hyperthermia system for treatment of malignant tumors.

THERMAL SURGICAL TOOL

An electrical conductor, such as a wire or catheter, which is coated circumferentially with a ferromagnetic material in a selected region, is fed from a high frequency alternating current source. The ferromagnetic material has a quick response in heating and cooling to the controllable power delivery. The ferromagnetic material can be used for separating tissue, coagulation, tissue destruction or achieving other desired tissue effects in numerous surgical procedures.

FIXATION OF VESSELS FOR PERCUTANEOUS FISTULA CREATION

A method of percutaneously creating a fistula includes inserting percutaneously a medical instrument to a target location having a first blood vessel and a second blood vessel. A fastener is then deployed via the medical instrument to the target location. The fastener is in a first configuration before the deploying and a second configuration after the deploying. The fastener limits relative movement between the first blood vessel and the second blood vessel when in the second configuration. An anastomosis between the first blood vessel and the second blood vessel is percutaneously produced.

SYSTEMS AND METHODS FOR CONTROLLING USE AND OPERATION OF A TREATMENT DEVICE

A system for controlling a treatment device generates a graphical interface that visually prompts a user in a step-wise fashion to use the treatment device to perform a process of forming a pattern of lesions that extends both circumferentially and axially in different levels in a body region. The graphical interface displays for the user a visual record of the progress of the process from start to finish and guides the user so that so that individual lesions desired within a given level are all formed, and that a given level of lesions is not skipped.

Multi-mode surgical tool

Thermal, electrosurgical and mechanical modalities may be combined in a surgical tool. Potentially damaging effects in a first modality may be minimized by using a secondary modality. In one example, thermal hemostasis may thus help electrosurgical applications avoid the adverse tissue effects associated with hemostatic monopolar electrosurgical waveforms while retaining the benefits of using monopolar incising waveforms.

Device, system and method for in-vivo cauterization

Devices, systems and methods for in-vivo cauterization. An autonomous in-vivo device may include a heating mechanism to cauterize in-vivo tissue. A system may include an autonomous in-vivo heating device having a heating mechanism to cauterize in-vivo tissue, and an in-vivo imaging device to acquire in-vivo images.

HYPERTHERMIC VESSEL TREATMENT DEVICES AND METHODS AND KITS UTILIZING THE SAME

The present disclosure concerns hyperthermic devices for treating vascular involvements related to cancer therapies, such as surgery. In specific embodiments, the device is configured to provide therapeutic heating to destroy vessel-encasing tumors while still protecting the vessel itself. In particular embodiments, the devices utilize two opposing semi-cylindrical shells that encase the vessel in need of treatment of a tumor thereon. In other devices, a flexible substrate is guided under and around the vessel and tumor thereon.

Device for dilating the urethra of the body of a patient and device for removing prostate tissue

Device for removing prostate tissue from within the urethra, the device including a plurality of arms, and an actuating mechanism coupled to the arms, the arms being rotatable about a longitudinal axis of the urethra, the arms being divided into arm pairs, each of the arm pair being apart from each other in a first configuration and attempting to get closer to each other, in a second configuration, wherein the device is inserted in the urethra toward the prostate, in the first configuration, and wherein after the device is placed adjacent to the prostate, within the urethra, the actuating mechanism moves the arms to the second configuration, thereby pinching the prostate through the urethra.

REGIONAL FLOW SENSOR ON CARDIAC CATHETER

Catheters and methods are provided for determining a fluid flow rate of fluid located near a tip assembly of the catheter and providing an indication of the fluid flow condition and/or controlling one or more functions of the catheter based on the determined fluid rate. A method includes receiving a signal from a sensor located on a tip assembly of a catheter, the signal being indicative of a fluid flow condition of fluid located near the tip assembly. A processing device determines the fluid flow condition using the signal. Based on the determined fluid flow rate, the processor causes a device to output an indication of the determined fluid flow condition.

Меthоds fоr trеаting а hоllоw аnаtоmiсаl struсturе

А wоrking еnd оf а саthеtеr inсludеs аt lеаst оnе thеrаpеutiс еlеmеnt, suсh аs а rеsistivе hеаting еlеmеnt, usаblе tо dеlivеr еnеrgу fоr ligаting, оr rеduсing thе diаmеtеr оf а hоllоw аnаtоmiсаl struсturе. In сеrtаin ехаmplеs, thе саthеtеr inсludеs а lumеn tо ассоmmоdаtе а guidе wirе оr tо аllоw fluid dеlivеrу. In сеrtаin еmbоdimеnts, а bаllооn is inflаtеd tо plасе rеsistivе еlеmеnt(s) intо аppоsitiоn with а hоllоw аnаtоmiсаl struсturе аnd tо оссludе thе struсturе. Indехing dеviсеs аnd mеthоds аrе аlsо disсlоsеd fоr suссеssivеlу trеаting pоrtiоns оf thе hоllоw аnаtоmiсаl struсturе. In сеrtаin ехаmplеs, mаrks аlоng thе саthеtеr shаft prоvidе visuаl vеrifiсаtiоn tо thе phуsiсiаn оf thе rеlаtivе pоsitiоn оf thе thеrаpеutiс еlеmеnt оf thе саthеtеr. Еmbоdimеnts оf indехing dеviсеs mау inсludе pаirs оf rings аnd/оr hingеd аrms thаt mоvе а саthеtеr а dеsirеd indехеd pоsitiоn bеtwееn suссеssivе trеаtmеnts.

Control system and process for application of energy to airway walls and other mediums

The present invention includes a system for delivering energy to an airway wall of a lung comprising an energy delivering apparatus and a PID controller having one or more variable gain factors which are rest after energy deliver has begun. The energy delivering apparatus may include a flexible elongated member and a distal expandable basket having at least one electrode for transferring energy to the airway wall and at least one temperature sensor for measuring temperature. The PID controller determines a new power set point base on an error between a preset temperature and the measured temperature. The algorithm can be Pi+1 = Pi + G(aei+ ßei-1+ ? ei-2) where a, ß and ? are preset values and a is from 1 to 2; ß is from -1 to -2; and ? is from -0.5 to 0-5. In another variation, the controller is configured to shut down if various measured parameters are exceeded such as, for example, energy, impedance, temperature, temperature differences, activation time and combinations thereof. Methods ...

BALLOON CATHETER FOR HYPERTHERMIA TREATMENT

СПОСОБ И УСТРОЙСТВО ДЛЯ ДОСТАВКИ ЛЕКАРСТВЕННЫХ СРЕДСТВ

Изобретение относится к медицинской технике, а именно к устройствам для доставки лекарственных средств пациенту, в частности к устройствам для подкожной инфузии лекарственных средств или веществ, использующим источники энергии для повышения эффективности введения лекарственных средств. Устройство для доставки терапевтического вещества в тело пациента содержит инфузионный катетер, элемент прикрепления катетера, кожух, терапевтический элемент и контроллер. Инфузионный катетер выполнен с возможностью вставления в телесную ткань, расположенную на участке вставки на теле пациента, и с возможностью доставки терапевтического вещества в тело пациента в области инфузии. Область инфузии включает объем ткани тела, окружающий участок вставки. Элемент прикрепления катетера выполнен с возможностью прикрепления к коже пациента и с возможностью прикрепления инфузионного катетера к коже. Кожух содержит устройство доставки вещества, предназначенное для введения терапевтического вещества в инфузионный катетер ...

Способ сверхвысокочастотной аблации эхинококковых кист печени

Изобретение относится к медицине, хирургии, паразитологии. Процедура проводилась под общей анестезией в условиях операционной. Положение пациента на операционном столе определялось локализацией кисты и наличием ультразвукового окна для безопасной траектории пункционной иглы и в последующем антенны. Процедура проводится аппаратом для сверхвысокочастотной аблации с набором антенн. Аппарат состоит из генератора мощностью 60 Вт с частотой колебаний до 915 МГц, перистальтического насоса, подающего по замкнутому контуру охлажденную воду и антенны для СВЧ-аблации. Для проведения процедуры используют одиночные антенны. Пункция очага производится под ультразвуковым контролем. Параллельно в кисту устанавливался дренаж для частичной эвакуации жидкой части эхинококковой кисты и антенна СВЧ. Затем осуществляется контроль положения антенны для прецизионного позиционирования в центре эхинококковой кисты. Затем включалась подача жидкости перистальтическим насосом и начиналась работа генератора. При этом ...

УСТРОЙСТВО ДЛЯ ДЕРМАБРАЗИИ

Полезная модель относится к медицинской технике, а именно к электрохирургическим инструментам - электродам для дермабразии (дерматобразии), предназначенным для удаления поверхностных слоев кожи методом электрокоагуляции. Техническая проблема заключается в разработке устройства для дермабразии предназначенного для удаления поверхностных слоев кожи заданной толщины (глубины) на участках любой формы, позволяющего формировать кожный лоскут для аутодермальной пластики дефектов брюшной стенки. Технический результат - расширение арсенала устройств для удаления поверхностных слоев кожи методом электрокоагуляции. Технический результат достигается тем, что устройство для дермабразии, согласно решению содержит П-образную раму и элемент крепления рамы, выполненный в виде двух колец, наружного и внутреннего, в нижней части П-образной рамы, между концами боковых сторон, закреплен проволочный электрод, а в верхней части - элемент для подключения к устройству для электрокоагуляции, внутреннее опорное кольцо ...

УСТРОЙСТВО ДЛЯ КАПСУЛОРЕКСИСА С ГИБКИМ НАГРЕВАТЕЛЬНЫМ ЭЛЕМЕНТОМ

... 1. Устройство для капсулорексиса, содержащее: ! резистивный нагревательный элемент, содержащий электрически резистивную сверхупругую проволоку, имеющую первый и второй концы, при этом сверхупругая проволока выполнена с возможностью включения в себя петли, причем первый и второй концы являются смежными и продолжаются от петли для образования подводящей секции; ! изолирующий участок, содержащий электроизоляционный материал, отделяющий первый и второй концы сверхупругой проволоки; и ! рукоятку, входящую в фиксированное зацепление, по меньшей мере, с участком подводящей секции. ! 2. Устройство для капсулорексиса по п.1, дополнительно содержащее трубчатый вводной картридж, выполненный с возможностью плотного охвата участка рукоятки и по существу заключения в себя резистивного нагревательного элемента, когда резистивный нагревательный элемент находится в отведенном положении. ! 3. Устройство для капсулорексиса по п.1, в котором сверхупругая проволока выполнена из никель-титанового сплава. ! 4 ...

ИНСТРУМЕНТ И СИСТЕМА ДЛЯ ТЕРМИЧЕСКОЙ КАПСУЛОТОМИИ

... 1. Инструмент для выполнения капсулотомии, содержащий: ! (a) основной корпус, имеющий проксимальный конец и дистальный конец; ! (b) выдвигаемый-отводимый прожигающий элемент, присоединенный к упомянутому дистальному концу упомянутого основного корпуса и выполненный с возможностью перевода между отведенной конфигурацией и выдвинутой конфигурацией; ! (c) воздушный канал, продолжающийся через упомянутый основной корпус и заканчивающийся проксимально от упомянутого прожигающего элемента; и ! (d) средство подачи воздуха, соединенное с воздушным каналом для подачи струи воздуха под давлением; ! (e) средство управления капсулотомией и перемещением, соединенное с основным корпусом для обеспечения подачи электрического тока в прожигающий элемент и управления перемещением для управления выдвижением и отведением прожигающего элемента, ! при этом упомянутый отводимый прожигающий элемент выполнен с возможностью введения в глаз через небольшой корнеальный разрез, когда упомянутый прожигающий элемент ...

УСТРОЙСТВО ДЛЯ ПОВЫШЕНИЯ ПРОНИЦАЕМОСТИ КОЖИ ДЛЯ ОБНАРУЖЕНИЯ АНАЛИТА ИЛИ ТРАНСДЕРМАЛЬНОЙ ДОСТАВКИ ЛЕКАРСТВЕННЫХ ПРЕПАРАТОВ

... 1. Устройство для контролируемой абразивной обработки, содержащее рукоятку, абразивный наконечник, механизм управления с обратной связью, электрод истока, обратный электрод и электрический двигатель, при этом электрод истока расположен в абразивном наконечнике. ! 2. Устройство по п.1, в котором механизм управления с обратной связью представляет собой внутренний механизм управления с обратной связью. ! 3. Устройство по п.1, в котором механизм управления с обратной связью представляет собой внешний механизм управления с обратной связью. ! 4. Устройство по п.3, в котором обратный электрод расположен на проксимальном конце рукоятки и в котором обратный электрод окружает абразивный наконечник. ! 5. Устройство по п.1, в котором абразивный наконечник содержит смачивающую жидкость. ! 6. Устройство по п.1, в котором абразивный наконечник содержит материал, выбранный из группы, состоящей из проводящего и непроводящего материалов. ! 7. Устройство по п.6, в котором абразивный наконечник содержит проводящий ...

АДАПТЕРНЫЙ ЭЛЕМЕНТ, ВЫСОКОЧАСТОТНЫЙ ХИРУРГИЧЕСКИЙ ИНСТРУМЕНТ, НАСАДКА АДАПТЕРА И СИСТЕМА

... 1. Адаптерный элемент (3) для приема высокочастотной хирургической рукоятки (5), выполненный с возможностью за счет приема рукоятки (5) в адаптерный элемент (3) образовывать канал (9) дымового газа для отведения дымового газа из области обработки в адаптерном элементе (3), отличающийся тем, что на его дистальном конце прикреплен по меньшей мере один электрод (17) в форме стержня, наконечника, кольца, шара или петли или их сочетания.2. Адаптерный элемент по п. 1, отличающийся тем, что электрод (17) или электроды (17) установлены с возможностью перемещения.3. Адаптерный элемент по п. 1, отличающийся тем, что предусмотрено жидкостно-инжекционное сопло, которое выполнено, прежде всего, таким образом, что дистальный конец электрода (17) имеет встроенную форсунку для создания струи текучей среды.4. Адаптерный элемент по п. 2, отличающийся тем, что предусмотрено жидкостно-инжекционное сопло, которое выполнено, прежде всего, таким образом, что дистальный конец электрода (17) имеет встроенную форсунку ...

Устройство для управляемого нагрева тканей, сосудов и полостей человека и животных

1. Устройство, полностью или частично имплантируемое с целью передачи тепла в полость, ткань или сосуды отличающееся тем, что- оно представляет собой медный изолированный провод (1), за исключением концов, по крайней мере, на часть которого устанавливается резистивная трубка (5) обладающая электрическим сопротивлением более 20 мкОм/см,- медный провод (1) на дистальном конце (3) имеет контакт с упомянутой трубкой, в то время как проксимальный конец обладает возможностью быть соединенным с источником тока (9),- трубка покрыта на части своей длины одним подвижным проксимальным цилиндром (6), на проксимальном конце способным быть закрепленным на трубке (5), указанный цилиндр (6) обладает электрическим сопротивлением ниже 20 мкОм/см,- подвижный проксимальный цилиндр (6) и проксимальный конец медного провода (1) способны быть подключенными к источнику тока (9.)2. Устройство по п.1, отличающееся тем, что трубка (5) закреплена на проводе (1), только на дистальном конце указанного провода, на длину в пределах 5 см,3. Устройство по п.1, отличающееся тем, что трубка (5) закреплена микрообжатием,4. Устройство по п.1, отличающееся тем, что оно снабжено подвижными дистальными цилиндрами (7, 8), оснащенными на поверхности пористым носителем, выделяющим активное вещество,5. Устройство по п.1, отличающееся тем, что оно снабжено подвижными дистальными цилиндрами (7, 8), поверхность которых снабжена радиоактивным продуктом для терапии и локализации,6. Устройство по п.1, отличающееся тем, что трубка (5) выполнена из материала, выбранного из группы, включающей сталь, нержавеющую сталь, нитинол или титан,7. Устройство по п.1, отличающееся тем, что медный провод (1) изолир� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 142 663 U1 (51) МПК A61B 18/08 (2006.01) A61F 7/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2012140515/14, 04.03.2011 (24) Дата начала отсчета срока действия патента: 04.03.2011 (72) ...

Устройство для внутрикостной электрокоагуляции

Техническое решение относится к медицине, а именно к ортопедии и травматологии, и может также найти применение при хирургическом лечении злокачественных опухолей длинных костей.Устройство для внутрикостной электрокоагуляции состоит из рукоятки и сменной насадки, выполненной в виде металлического цилиндра, на конце которого имеется диэлектрическая головка с кольцевым электродом, насадка соединяется с рукояткой при помощи байонетного соединения. Это техническое решение отличается тем, что электрокоагуляционный эффект обеспечивается пропусканием через кольцевидный электрод электрического тока высокой частоты, генерируемого стационарным аппаратом для электрокоагуляции, глубина электрокоагуляционного некроза лимитируется эффектом снижения электрического тока с увеличением величины импеданса коагулированной ткани.Предложенное устройство обеспечивает высокую эффективность остановки внутрикостного кровотечения на всем протяжении фрезерованного канала и контролируемую глубину коагуляционного некроза. Данное устройство имеет достаточную простоту, надежность и высокую эффективность, что позволяет достичь хороших клинических результатов и может применятся в специализированных лечебных учреждениях. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 178 475 U1 (51) МПК A61B 18/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК A61B 18/082 (2018.01) (21)(22) Заявка: 2017128605, 10.08.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 04.04.2018 (45) Опубликовано: 04.04.2018 Бюл. № 10 U 1 1 7 8 4 7 5 R U (56) Список документов, цитированных в отчете о поиске: UA 8340 U, 15.08.2005. RU 114267 U1, 20.03.2012. RU 2522903 C2, 20.07.2014. RU 2567251 C2, 10.11.2015. US 20100268212 A1, 21.10.2010. (54) Устройство для внутрикостной электрокоагуляции (57) Реферат: Техническое решение относится к медицине, генерируемого стационарным аппаратом для а именно к ортопедии и травматологии, и может электрокоагуляции, глубина ...

Occlusion devices and methods

The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilisent structure to the tubal walls.

Laparoscopic medical device with de-mateable tip

A laparoscopic instrument assembly with a handle member and a removable tip. The handle member and removable tip are mated using a double threaded design which provides a secure connection with low electrical resistance. Electrical energy is provided through an inner shaft to the removable tip, and a return energy path is formed using an outer tubing of the instrument assembly. The removal tip includes a cutting and sealing device with a resistive member that is provided with the electrical energy, thereby enabling the tip to cut and seal tissue.

Balloon catheter system

A balloon catheter system enables only a target site to be efficiently ablated, ensuring a balloon to be able to be brought into close contact with the target site in conformity to a shape of the target site. The balloon includes a contact portion that contacts the target site and a noncontact portion that does not contact the target site. A membrane thickness of the contact portion is thinner than that of the noncontact portion The target site that is in contact with the thin contact portion is selectively ablated, while the thick noncontact portion is less likely to exhibit a temperature increase. Hence, only the target portion is efficiently ablated.

System for controlling tissue ablation using temperature sensors

Body tissue ablation is carried out by inserting a probe into a body of a living subject, urging the probe into contact with a tissue in the body, generating energy at a power output level, and transmitting the generated energy into the tissue via the probe. While transmitting the generated energy the ablation is further carried out by determining a measured temperature of the tissue and a measured power level of the transmitted energy, and controlling the power output level responsively to a function of the measured temperature and the measured power level. Related apparatus for carrying out the ablation is also described.

Endoluminal fold creation

Devices and methods are provided for forming one or more plications in the walls of a body cavity. In particular, endoscopic devices and methods are provided for forming and/or securing endoluminal tissue folds to reduce the volume of the gastric cavity. An end effector that includes a tissue receiving cavity can be delivered to a desired surgical site to allow a tissue fold to be formed within the tissue receiving cavity. A fastener can be used to secure the adjacent layers of tissue that form the tissue fold. The tissue folds can be effective to limit the stomach's capacity and create a feeling of satiety.

Endoluminal fold creation

Devices and methods are provided for forming one or more plications in the walls of a body cavity. In particular, endoscopic devices and methods are provided for forming and/or securing endoluminal tissue folds to reduce the volume of the gastric cavity. An end effector that includes a tissue receiving cavity can be delivered to a desired surgical site to allow a tissue fold to be formed within the tissue receiving cavity. A fastener can be used to secure the adjacent layers of tissue that form the tissue fold. The tissue folds can be effective to limit the stomach's capacity and create a feeling of satiety.

Devices and methods for treatment of luminal tissue

Devices and methods are provided for treatment of tissue in a body lumen with an electrode deployment device. Embodiments typically include a device with a plurality of electrodes having a pre-selected electrode density arranged on the surface of a support. The support may comprise a non-distensible electrode backing that is spirally furled about an axis and coupled to an expansion member such as an inflatable elastic balloon. In some embodiments, the balloon is inflated to selectively expose a portion of the electrode surface while maintaining the electrode density.

Medical treatment apparatus and control method of medical treatment device

A medical treatment device to treat body tissues for conjugation, includes at least a pair of holding members configured to hold the body tissues, an energy output portion provided in at least one of the holding members and connected to an energy source to form a joined portion by supplying energy to the body tissues held by the pair of holding members and joining the body tissues, and a conjugation coating portion to a region from a neighborhood of a joined portion to coat joined surfaces with a substance capable of preventing fluid from invading during or after the body tissues being joined by adding the energy to the body tissues.

Vertebral Body Nerve and Vein Cauterizing System and Method

Disclosed are vertebroplasty methods that include cauterizing an inner cavity of a vertebra of a mammal, such as a human, and injecting bone cement into the vertebra. Systems and kits for performing such methods are also disclosed.

System for heating a vertebral body to treat back pain

Methods and systems for modulating intraosseous nerves (e.g., nerves within bone) are provided. For example, the methods and systems described herein may be used to modulate (e.g., denervate, ablate) basivertebral nerves within vertebrae. The modulation of the basivertebral nerves may facilitate treatment of chronic back pain.

Device For Administering Heat To A Human Or Animal Tissue, Vessel Or Cavity

Device for administering heat to a cavity, tissue or vessel, characterised in that it takes the form of an insulated copper wire over the length of which is crimped a tube having a resistivity of more than 20 μΩ·cm, the copper wire ( 1 ) is in contact with the said tube at its distal extremity, the tube is enclosed over part of its length by at least one movable cylinder having an electrical resistance of less than 20 μΩ·cm, and the movable cylinder and the copper wire have means for connection to a current generator.

Surgical cutting and fastening device with descendible second trigger arrangement

A nested trigger assembly for a surgical instrument may generally comprise a first trigger and a second trigger, wherein the first trigger and the second trigger are movable together on a first stroke of the nested trigger assembly, wherein the second trigger is configured to be biased away from the first trigger after the first stroke and before a second stroke, and wherein the second trigger is configured to be moved toward to the first trigger during the second stroke. A surgical instrument may generally comprise a shaft comprising a proximal end and a distal end, a handle extending from the proximal end, wherein the handle comprises a gripping portion, and a nested trigger assembly extending from the handle. The nested trigger assemble may comprise one of a separable trigger assembly and a divisible trigger assembly.

Integrated Suture and Cauterization

A system for suturing and cauterization is provided. A needle assembly and/or suture line emanates heat to cauterize tissue during wound closure. Energy sources for the heat include thermal elements of a variety of configurations energized from electrical, RF or chemical sources disposed internally or external to the needle assembly. Conductive suture lines are provided and some embodiments include a surgical robot. Wound closure is improved and closing time decreased while the potential for bleeding induced by needle tract incisions and suture tension is minimized.

DETECTING AND TREATING NERVOUS SYSTEM DISORDERS

Some embodiments of a mapping device may be capable of passing through cerebral veins and other cerebrovascular spaces to provide electrophysiological mapping of the brain. These embodiments of the device may also be capable of providing, simultaneously or separately, ablation energy or other treatments to targeted brain tissue. In such circumstances, a user may be enabled to analyze an electrophysiological map of a patient's brain and, at the same time or within a short time period before or after the mapping process, may be enabled to apply ablation energy for treatment of a central nervous system disorder. Such treatment may be accomplished without the use of invasive surgery in which the brain is accessed through an opening in the patient's cranium. 1. A method of using a catheter device to provide intravenous brain mapping from within one or more cerebral veins , comprising:advancing a distal tip portion of a brain mapping catheter device through a patient's vein that extends below the patient's head to a position within one or more cerebral veins proximal to brain tissue within the patient's head, wherein the brain mapping catheter device accesses the one or more cerebral veins without surgical access through an opening in the patient's cranium; andusing one or more electrodes positioned along the distal tip portion of the brain mapping catheter device to detect electrophysiological signals in a portion of the brain tissue while the one or more electrodes remain disposed within the one or more cerebral veins and while a proximal portion of the brain mapping catheter device resides external to the patient.2. The method of claim 1 , further comprising electrically coupling at least one component of the proximal portion of the brain mapping catheter device to an electrophysiological mapping control and display system.3. The method of claim 2 , wherein the brain mapping catheter device comprises a flexible elongated body having an internal conduit through which ...

System and method for calibration of optical fiber instrument

An instrument system that includes an elongate body in a geometric configuration, an optical fiber, and a controller is provided. The optical fiber is operatively coupled to the elongate body and has a strain sensor provided on the optical fiber, wherein at least a portion of the optical fiber is in the geometric configuration. The controller is operatively coupled to the optical fiber and adapted to receive, from a source other than the optical fiber, information indicative of the geometric configuration, receive a signal from the strain sensor, and associate the signal with the geometric configuration.

OPTICAL FIBER INSTRUMENT SYSTEM AND METHOD WITH MOTION-BASED ADJUSTMENT

An instrument system that includes an optical fiber and a controller is provided. The optical fiber is coupled to an external structure of a patient and has a strain sensor provided thereon. The controller is operatively coupled to the optical fiber and adapted to receive a signal from the strain sensor and to determine a property of respiration of the patient based on the signal. 1. An instrument system , comprising:an optical fiber coupled to an external structure of a patient and having a strain sensor provided thereon; receive a signal from the strain sensor; and', 'determine a property of respiration of the patient based on the signal., 'a controller operatively coupled to the optical fiber and adapted to2. The instrument system of claim 1 , wherein the external structure comprises the patient's chest claim 1 , and wherein the property of respiration comprises movement of the patient's chest.3. The instrument system of claim 2 , further comprising an elongate body adapted to be located inside the patient claim 2 , wherein the controller is adapted to control the elongate body based on the determined movement of the patient's chest.4. The instrument system of claim 3 , wherein the elongate body is adapted to deliver therapy inside the patient claim 3 , and wherein the controller is configured to control timing of the delivery of therapy based on the determined movement of the patient's chest.5. The instrument system of claim 4 , wherein the elongate body comprises an ablation catheter claim 4 , and wherein the controller is adapted to control timing of the delivery of therapy by causing the ablation catheter to deliver ablation energy at a plurality of times that each correspond to a same point of a respiratory cycle or of a cardiac cycle.6. The instrument system of claim 3 , further comprising an actuation element adapted to actuate the elongate body claim 3 , wherein the controller is adapted to control the actuation element based on the determined movement of ...

METHODS AND APPARATUS FOR FOCUSED BIPOLAR TISSUE ABLATION USING AN INSULATED SHAFT

A tissue ablation probe is provided. The probe comprises a proximal electrode element, which includes a proximal electrode stem and a deployable proximal electrode array, and a distal electrode element, which includes a distal electrode stem and a deployable distal electrode array. The probe is configured, such that a majority of electrical energy conveyed between the proximal and distal electrode elements is conveyed between distal termini of the electrode arrays, whereas a relatively small amount of the electrical energy is conveyed between the electrode stems. One or more of the electrodes on the arrays may be optionally insulated to further enhance the electrical characteristics of the arrays. 155-. (canceled)56. A bipolar tissue ablation probe for creating a lesion within a target tissue comprising:a proximal electrode array configured for moving from a retracted configuration to a deployed configuration by proximal retraction;a distal electrode array configured for moving from a retracted configuration to a deployed configuration by distal advancement;a shaft carrying the proximal and distal electrode arrays, wherein the shaft has an electrically insulative portion that separates the proximal and distal electrode arrays, the shaft having a distal point of deployment for the distal electrode array and a proximal point of deployment for the proximal electrode array; andwherein the proximal electrode array and the distal electrode array each comprise respective everting needle electrodes when in the deployed configuration, wherein the everting needle electrodes of the proximal electrode array and the distal electrode array are partially coated with an insulating material along a length of the everting needle electrodes from their respective points of deployment.57. The bipolar tissue ablation probe of claim 56 , wherein the insulating material comprises at least one of plastic claim 56 , rubber claim 56 , and a polymer.58. The bipolar tissue ablation probe of ...

Articulating Ablation And Division Device With Blood Flow Sensing Capability

A laparoscopic liver resection device is described. The device combines the Radiofrequency Ablation (RFA) technology with a cutting mechanism, a blood-flow sensor and a flexible actuation mechanism to simultaneously coagulate and cut the liver tissue and detect the presence of blood flow to confirm avascularity. The present invention eliminates the risk of excess bleeding due to cutting too deep and reduces recovery time and the time spent on re-coagulation of coagulated areas, thereby shortening duration of surgery. Also embodiments prevent excess ablation by stopping ablation activity on the target tissue as soon as insufficient or no blood flow in the target tissue is detected. Thus a closed loop control for a bloodless tissue/organ division method is provided. 1. A device , comprising:a plurality of coagulating elements coagulating target tissue of a biological body;a blood flow sensor sensing levels of blood flow within the target tissue, the blood flow sensor indicating absence of blood flow when the target tissue is substantially coagulated;a retractable cutter cutting the coagulated tissue in an event the sensor indicates absence of blood flow in the target tissue;an actuator coupled to the retractable cutter that activates the retractable cutter; anda housing at a distal end of the device housing at least the plurality of coagulating elements and the retractable cutter.2. The device of wherein the blood flow sensor indicates the absence of blood flow in an event where zero blood flow within the target tissue is observed.3. The device of wherein the blood flow sensor indicates the absence of blood flow in an event the blood flow observed within the target tissue is less than a predetermined threshold.4. The device of wherein the blood flow sensor indicates the absence of blood flow within the target tissue by evaluating intensity of a backscattered signal resulting from irradiating the tissue with an ultrasonic wave.5. The device of wherein the blood flow ...

LAPARSCOPIC TISSUE MORCELLATOR SYSTEMS AND METHODS

A surgical tissue cutting and extraction device includes a sleeve having a tissue extraction lumen. One or more jaw members are coupled to the sleeve and configured to pivot or flex relative to the sleeve to capture tissue. The captured tissue may then be resected using radio frequency or other cutting tools on the sleeve. 1. A surgical tissue cutting and extraction device , comprising:an axially-extending sleeve having a tissue extraction lumen;an electrode edge disposed at a distal end of the sleeve; andone or more jaw members coupled to the sleeve, the jaw members configured to pivot or flex exteriorly of the extraction lumen toward and away from one another to capture tissue therebetween.2. The surgical device of wherein at least one jaw and sleeve are axially moveable relative to one another.3. The surgical device of wherein the electrode edge is coupled to an RF source and a controller for generating a tissue-cutting plasma at the electrode edge.4. The surgical device of wherein the electrode edge comprises a first polarity electrode and at least one jaw comprises a second polarity electrode.5. The surgical device of wherein the sleeve is axially moveable relative to the jaw member.6. The surgical device of wherein the sleeve is rotationally moveable relative to the jaw member.7. The surgical device of wherein the sleeve is actuatable axially and/or rotationally by a manual actuator.8. The surgical device of further comprising a motor drive to axially and/or rotationally actuate the sleeve.9. The surgical device of wherein the jaws are moveable toward or away from one another by a manual actuator.10. The surgical device of further comprising a motor drive to move the jaws are moveable toward or away from one another by a motor drive.11. The surgical device of wherein the jaws and sleeve are actuatable by a motor drive in a selected sequence.12. The surgical device of further comprising an RF on-off limit switch which terminates RF delivery based on the axial ...

Method for Ablating Tissue to Facilitate Implantation and Apparatus and Kit for Use Therewith

A method for treating a mammalian body having tissue comprising creating a cavity in the tissue formed by an internal surface of the tissue. The internal surface is ablated. An implant-forming material is introduced into the cavity to create an implant in the tissue. The ablation of the internal surface inhibits migration of the implant. An apparatus and kit for use with the method are provided. 145-. (canceled)46. A method for treating a mammalian body having tissue comprising:creating, via blunt dissection, a cavity in the tissue formed by an internal surface of the tissue by inserting a distal extremity of a flexible elongate member into the tissue;ablating, via an ablation element, the internal surface; andintroducing, via the flexible elongate member, an implant-forming material into the cavity to create an implant in the tissue whereby the ablation of the internal surface inhibits migration of the implant.47. The method of claim 46 , wherein the creating step includes the step of dissecting the tissue via an incising element by moving the incising element within a distal extremity of the flexible elongate member between an extended position in which the incising element projects distally from a distal extremity of the flexible elongate member for introducing a rounded distal end of the flexible elongate member and the expandable-collapsible body to a target position and a retracted position permitting use of the rounded distal end for blunt dissection.48. The method of claim 47 , wherein the ablating step includes utilizing the expandable-collapsible body to ablate the tissue.49. The method of claim 47 , wherein the expandable-collapsible body is inflated with a conductive material and the ablating step includes weeping the conductive material from the expandable-collapsible body.50. The method of claim 49 , wherein the ablating step includes energizing an electrode within the expandable-collapsible body to couple radio frequency energy to the conductive ...

TISSUE TREATMENT DEVICE AND RELATED METHODS

A hypotube based deliver system is used to position one or more elements in position for treatment within the body. The elements may include electrodes, sensors or injection ports or even anchors. The hypotubes may have pre-set shapes or are plastically deformed prior to positioning as they exit a positioning device. There are methods of providing therapy using the hypotubes including mixed mode therapies are also described. 1. A therapy device , comprising:A catheter having a proximal end and a distal end and a lumen extending therethrough;A positioning device disposed within and moveable relative to the catheter lumen to extend beyond the catheter distal end portion, the positioning device comprising a plurality of hollow, outwardly biased legs; andA hypotube disposed within and moveable relative to a distal end of one of the plurality of hollow legs, the hypotube having at least one element used for performing an action when the element is positioned away from the hollow leg.2. The therapy device of wherein the hypotube has a pre-set shape such that when the hypotube is advanced through the lumen of an outwardly biased leg the element on the hypotube is positioned to perform the action.3. The therapy device of wherein claim 1 , in use during or after performing the action claim 1 , a liquid ablation agent is disposed within the lumen of the pre-shaped hypotube.4. The therapy device of further comprising: a handle at the catheter proximal end having an injection port in fluid communication with a lumen of the hypotube and an opening in the hypotube distal portion.5. The therapy device of further comprising: an opening in the hypotube distal portion is in the sidewall of the hypotube and in communication with the hypotube lumen.6. The therapy device of wherein a distal most opening of the hypotube lumen is closed off.7. The therapy device of the at least one element is positioned at least partially along an outer radial portion of the pre-shaped hypotube.8. The ...

ENDOSCOPIC TISSUE STABILIZATION DEVICE AND RELATED METHODS OF USE

Embodiments of the invention include a sleeve for use in a body lumen defined by body tissue. The sleeve includes a collapsible wall defining a lumen and including an inflatable member configured to increase a volume of the lumen when the inflatable member is in an inflated state, a conduit configured to inflate the inflatable member, and a port defined by the collapsible wall and in flow communication with the lumen. 1. A method of performing an endoscopic procedure , comprising:introducing a sleeve through a channel of an endoscope into a body space;expanding the sleeve to at least partially engage a tissue wall, wherein the sleeve includes a wall defining a lumen and a port in flow communication with the lumen; andintroducing a tool through a channel of the endoscope into the lumen of the sleeve;accessing tissue at the port to perform a procedure.2. The method of claim 1 , further including collapsing the sleeve and withdrawing the sleeve through a channel of the endoscope.3. The method of claim 1 , wherein expanding the sleeve includes inflating the sleeve from a collapsed configuration to an expanded configuration.4. The method of claim 3 , further including deflating the sleeve from the expanded configuration to the collapsed configuration and withdrawing the sleeve through a channel of the endoscope.5. The method of claim 3 , wherein the sleeve includes a plurality of longitudinal non-inflatable members and plurality of longitudinal inflatable members claim 3 , wherein the plurality of longitudinal inflatable members alternate with the plurality of longitudinal non-inflatable members about a circumference of the wall of the sleeve.6. The method of claim 1 , further including partially collapsing the sleeve claim 1 , repositioning the sleeve with respect to the tissue wall claim 1 , and re-expanding the sleeve to contact the tissue wall.7. The method of claim 1 , further including drawing tissue through the port and into the lumen of the sleeve.8. The method ...

PROCESS FOR MANUFACTURING AN ELECTRODE FOR MEDICAL USE, AND ELECTRODE OBTAINED

A method of manufacturing an electrode for medical use, such as an intracerebral electrode () intended for use at brain level, the electrode having the shape of a narrow and elongated rod and including at least one electrical contact pad () connected to an electrical conductor intended to be connected to a processing device and/or a recording device. In order to realize the electrode (), a substrate () having a tridimensional shape is used and a metal layer is deposited on a periphery of the substrate () by a physical vapor deposition technique through a mask () that determines a pattern arranged so as to define at least the electrical contact pad (). 110-. (canceled)1124. A method of manufacturing an electrode for medical use , the electrode being formed in a shape of a narrow and elongated rod comprising at least one electrical contact pad ( , ) connected to an electrical conductor intended to be connected to at least one of a processing device and recording device ,{'b': 1', '10, 'wherein, in order to realize the electrode (), a substrate () having a cylindrical shape, made from a biocompatible rigid or semi-rigid material, which defines the body of the electrode, is used, and'}{'b': 10', '12', '2', '4, 'a metal layer is deposited on the surface of the substrate () by a physical vapor deposition technique, through a mask () that determines a pattern arranged so as to define at least the electrical contact pad (, ).'}1210. The method according to claim 11 , further comprising the step of depositing the metal layer along an entire circumference of the substrate () claim 11 ,carrying out the metal deposition in at least two successive steps, and{'b': '10', 'turning over the substrate () between the two successive steps.'}1310. The method according to claim 11 , further comprising the step of depositing the metal layer along an entire circumference of the substrate () claim 11 , andcarrying out the metal deposition in one single step using at least two targets.141010 ...

Ostial renal nerve ablation

A catheter including an elongated shaft having a distal end and a proximal end, where the catheter includes a thermal element at the distal end thereof. The thermal element may be used in an ablation procedure or other procedure to heat a tissue adjacent a vessel. In some instances, the thermal element may be positioned in a first vessel and may operate to heat tissue adjacent a second vessel or adjacent an ostium between the first vessel and the second vessel. Further, the catheter may include an expandable portion on which the thermal element may be connected or positioned. The expandable portion(s) may comprise a basket or cage, a balloon, a memory shape and formable portion, and/or other mechanical expanders.

ABLATION CATHETER WITH CRYOTHERMAL BALLOON

A catheter for thermal modulation of renal nerves via thermal ablation, the catheter including a catheter shaft including a distal end, a proximal end, and two lumens—a first lumen and a second lumen—extending therethrough. A thermal heating element is located proximate the distal end of the catheter shaft. In addition, a phase-change cooling mechanism is configured to extract heat away from the thermal heating element. The phase-change cooling mechanism involves vaporization of a liquid refrigerant circulated to the distal end of the catheter shaft through the first lumen into a gas and exhausting the gas to the proximal end of the catheter shaft through the second lumen. 1. A catheter for thermal modulation of renal nerves via thermal ablation , the catheter comprising:a catheter shaft including a distal end, a proximal end, a first lumen extending therethrough, and a second lumen extending therethrough;a thermal heating element located proximate the distal end of the catheter shaft; anda phase-change cooling mechanism configured to extract heat away from the thermal heating element, the phase-change cooling mechanism extracting heat through vaporization of a liquid refrigerant circulated to the distal end of the catheter shaft through the first lumen into a gas and exhausting the gas to the proximal end of the catheter shaft through the second lumen.2. The catheter of claim 1 , wherein the catheter includes a balloon mounted to the distal end of the catheter shaft claim 1 , the liquid refrigerant being circulated to an interior of the balloon.3. The catheter of claim 2 , further comprising an evaporator located within the balloon to vaporize the liquid refrigerant.4. The catheter of claim 2 , wherein the thermal heating element is mounted on the balloon.5. The catheter of claim 1 , wherein the thermal heating element is an ultrasound transducer.6. The catheter of claim 1 , wherein the liquid refrigerant is circulated to the distal end of the catheter shaft at a ...

Vacuum coagulation probes

A surgical device integrating a suction mechanism with a coagulation mechanism is provided for improving lesion creation capabilities. The device comprises an elongate member having an insulative covering attached about means for coagulating soft tissue. Openings through the covering expose regions of the coagulation-causing elements and are coupled to lumens in the elongate member which are routed to a vacuum source. A fluid source to passively transport fluid along the contacted soft tissue surface may be provided in order to push the maximum temperature deeper into tissue.

Skin Permeation Device for Analyte Sensing or Transdermal Drug Delivery

Devices, systems, kits and methods for increasing the skin's permeability controlled by measured skin electrical parameter are described herein. They may be used for transdermal drug delivery and/or analyte extraction or measurement. The controlled abrasion device contains (i) a hand piece, (ii) an abrasive tip, (iii) a feedback control mechanism, (iv) two or more electrodes, and (v) an electrical motor. Preferably the feedback control mechanism is an internal feedback control mechanism. In this embodiment, the abrasive tip contains two electrodes, i.e. both the source electrode and the return electrode. In another embodiment, the feedback control mechanism is an external feedback control. In the preferred embodiment for external feedback control, the device contains a co-axial or concentric arrangement of the two electrodes. In this embodiment, the abrasive tip contains the source electrode and the return electrode is located at the proximal end of the hand piece. The abrasive tip can be made of any material with a surface that can abrade skin. The material can be conductive or non-conductive. The controlled abrasion device may be provided in a kit, where the kit contains the device, one or more abrasive tips, optionally with a wetting fluid. The method for increasing the skin's permeability requires applying the controlled abrasion device to a portion of the skin's surface for a short period of time. The desired level of skin impedance, and thus the resulting permeability of the treated site, can be set at a predetermined value. Alternatively, the level of skin impedance can be selected based on the desired level of skin integrity, the subject's sensation of discomfort, or the duration of the application. The device contains a control mechanism which uses an appropriate algorithm or signal processing on the conductivity information provided by the electrodes to determine when the desired level of skin permeability has been reached. Once the desired ...

SYSTEM AND METHOD OF CONTROLLING POWER DELIVERY TO A SURGICAL INSTRUMENT

A thermal surgical instrument having a system to control the delivery of power from an energy source to active element located on a tip. The system for controlling delivery to the tip may include a control algorithm which uses on or more measurements, such as tip current, SWR, and rapid changes in reflected power, to manage power without affecting cutting efficacy, and in a manner that may be imperceptible by a surgeon. The system may utilize a state machine to determine the current environment in which the tip may be in. Power delivered to the tip may be selectively managed according to a fixed power index or a repeatedly executed power profile. 1. A surgical instrument comprising:a body;a thermal element disposed on the body and configure to receive oscillating electrical energy; andan information storage device for storing information relative to a configuration parameter of the thermal element.2. The surgical instrument of claim 1 , wherein the thermal element comprises a conductor having a ferromagnetic material covering at least a portion of the conductor claim 1 , and wherein ferromagnetic material claim 1 , when heated claim 1 , is movable between air and liquid without causing fracturing of the ferromagnetic material.3. The surgical instrument of claim 1 , wherein the information storage device is disposed in communication with a power supply configured to deliver oscillating electrical energy such that the information relative to the configuration parameter of the thermal element may be accessed and used to control delivery of oscillating electrical energy to the thermal element.4. The surgical instrument of claim 3 , wherein the information storage device is an EEPROM.5. The surgical instrument of claim 3 , wherein the thermal element is coupled to the power supply claim 3 , and wherein the power supply is configured to deliver oscillating electrical energy to the thermal element according to the configuration parameters stored in the information storage ...

SURGICAL CLAMP HAVING TREATMENT ELEMENTS

A medical device is provided having a means for actuating a pair of opposing jaw members. The jaw members are movable relative to one another from a first position, wherein the jaw members are disposed in a spaced apart relation relative to one another, to a second position, wherein the jaw members cooperate to grasp tissue therebetween. An ablation tool is connected to at least one of the jaws members, such that the jaw members are capable of conducting ablation energy through the tissue grasped therebetween. 1. A medical device comprising an elongate shaft , a cooling element , and a second element movable with respect to the cooling element to define a clamp , wherein the movable element is selectively detachable from the shaft.2. The medical device of claim 1 , wherein at least a portion of each of the elongate shaft claim 1 , cooling element claim 1 , and second element are thermally insulated.3. The medical device of claim 1 , wherein the elongate shaft defines a coolant flow path.4. The medical device of claim 3 , wherein at least one of the cooling element and second element defines a coolant flow path that is in fluid communication with the coolant flow path defined by the elongate shaft.5. The medical device of claim 4 , wherein both the cooling element and second element each define a coolant flow path.6. The medical device of claim 1 , wherein at least one of the cooling element and the second element includes a temperature measurement device.7. The medical device of claim 6 , wherein at least one of the cooling element and the second element includes an impedance measurement device.8. The medical device of claim 1 , wherein the second element includes a temperature sensor.9. The medical device of claim 1 , wherein the device is operable to clamp an area of target tissue when the second element is attached to the shaft claim 1 , and the device is operable to ablate the target tissue area when the second element is either attached to the shaft or detached ...

Renal nerve denervation via the renal pelvis

Apparatus, systems, and methods provide access to the renal pelvis of a kidney to treat renal nerves embedded in tissue surrounding the renal pelvis. Access to the renal pelvis may be via the urinary tract or via minimally invasive incisions through the abdomen and kidney tissue. Treatment is effected by exchanging energy, typically delivering heat or extracting heat through a wall of the renal pelvis, or by delivering active substances.

Apparatus for Administering Therapy at a Remote Location in the Body

Devices suitable for insertion into a hollow anatomical structure within a patient for the purpose of ablating tissue within or surrounding the hollow structure so as to induce occlusion of the hollow structure are provided. The devices are in the form of guidewires with functional tips, that comprise at least one heating module, at their distal ends. The devices of the invention are suitable for occluding hollow anatomical structures selected from vasculature or from non-vascular ducts and tubes, via percutaneous, laparoscopic or endoscopic routes of access. Methods of using the devices in the treatment of patients are also described. 142.-. (canceled)43. A device suitable for endoscopic insertion into a hollow anatomical structure within a patient for the purpose of administering thermal ablation to the walls of the hollow structure and optionally the surrounding tissue , the device comprising:a body having a distal end and a proximal end, the body comprising a central core which extends along the length of the body, the central core comprising more than two steering members arrayed about at least two independently insulated conductors, the at least two conductors having a connection to an external energy source; anda tip located at the distal end of the body, wherein the tip comprises at least two heating modules, and wherein each heating module is independently in contact with at least one conductor;wherein, in use, when the tip is located within the hollow structure the external energy source is activated, thereby inducing activation of the at least two heating modules and facilitating ablation of said structure and/or the surrounding tissue.44. The device of claim 43 , wherein the at least two heating modules comprise at least one electrode that is capable of expansion outwardly from the tip so as to achieve physical contact with at least a portion of the surface of the surrounding hollow structure.45. The device of claim 44 , wherein the electrode is capable ...

Expandable devices, rail systems, and motorized devices

Provided herein are expandable devices, rail systems, and motorized devices. In one embodiment, an expandable device comprises an expandable sac having a tool housed therein. The expandable device is optionally configured for operation while inside a body cavity. The expandable device optionally comprises at least one rail in the sac, and at least one railed device coupled to the rail for movement there on. Movement of the railed device on the rail is provided by, for example, a motor such as an electromagnetic motor or an inch-worm type motor. Expandable devices can be used, for example, to perform minimally invasive medical procedures requiring access to a body cavity. Expandable devices can also be used, for example, to provide safe and stable transport of instruments to the body cavity.

Unitary Endoscopic Vessel Harvesting Devices

Unitary surgical devices for tissue harvesting are disclosed. Such devices may include an elongated body extending between a proximal end and a distal end, and having one or more lumens extending through the elongated body and a tip disposed at the distal end of the elongated body. The harvesting device may further include a first gripping element disposed about the dissection tip and a second gripping element disposed about the dissection tip distally of the first gripping member. The second gripping member may be moveable with respect to the first gripping member for capturing a blood vessel between the first gripping member and the second gripping member. The blood vessel captured between first gripping member and the second gripping member may then be sealed and, subsequently, severed by a cauterizing element disposed between the first gripping member and the second gripping member.

MULTI-FUNCTIONAL MEDICAL DEVICE AND RELATED METHODS OF USE

A medical device including an elongate member having a proximal end, a distal end, and a lumen extending therebetween. The medical device may further include an end-effector disposed at the distal end of the elongate member. The end-effector may include a plurality of arms pivotally connected to one another, wherein each arm includes a tissue-contacting surface, a first portion of the tissue-contacting surface including a plurality of ridges configured to grasp tissue. Further, the tissue-contacting surface may include a channel oriented substantially parallel to a longitudinal axis of the medical device. 1. A medical device comprising:an elongate member having a proximal end, a distal end, and a lumen extending therebetween; andan end-effector disposed at the distal end of the elongate member, the end-effector including a plurality of arms pivotally connected to one another, wherein each arm includes a tissue-contacting surface, a first portion of the tissue-contacting surface including a plurality of ridges configured to grasp tissue,wherein the tissue-contacting surface includes a channel oriented substantially parallel to a longitudinal axis of the medical device.2. The device of claim 1 , wherein only one of the plurality of arms is configured to move.3. The device of claim 1 , wherein the entire tissue-contacting surface includes ridges.4. The device of claim 1 , wherein a second portion of the tissue-contacting-surface includes a mating surface having one or more teeth or ridges.5. The device of claim 1 , wherein the channel extends in a direction that is substantially parallel to a longitudinal axis of the elongate member.6. The device of claim 1 , further comprising a cutting element configured to be advanced through the channel.7. The device of claim 6 , wherein the cutting element includes a cautery device.8. The device of claim 1 , further comprising a locking device for selectively fixing a position of at least one of the plurality of arms.9. The device ...

DUAL THERMAL ABLATION DEVICE AND METHOD OF USE

The invention is a multi-functional ablation device that encompasses the use of both heat energy and cryogenic energy as integrated into one medical device. In one embodiment, the medical device integrates a heat source such as RF or HIFU in combination with a source of cryogenic energy such that the multi-functional ablation device is a dual thermal ablation device capable of utilizing either energy source alone or in combination. 1. A multi-functional ablation device comprisinga hybrid thermal-cooling system comprising an electrical power supply and a cryogen source;a longitudinal body having a proximal end and a distal end wherein said proximal end includes an outer sheath having an electrical connection contained therein and connected to said electrical power supply, and wherein said distal end is a closed tip with a thermally conductive surface;an ablation zone positioned within said distal end and defined by said thermally conductive surface;a cryogen supply line disposed through said longitudinal body and interconnected with said cryogen source for generating subzero temperatures;a wall having an inner surface and an outer surface such that said inner surface creates a cryogen return lumen surrounding said cryogen supply line and said outer surface creates an insulative lumen between said wall and said outer sheath, said wall extended circumferentially through said longitudinal body; and 'wherein said ablation zone directs subzero temperatures and hyperthermic temperatures to said thermally conductive surface.', 'one or more heating elements disposed within said ablation zone of said distal end and contacting said thermally conductive surface of said closed tip, said one or more heating elements interconnected with said electrical connection of said longitudinal body for generating hyperthermic temperatures;'}2. The multi-functional ablation device of claim 1 , wherein said ablation zone is an integral unit configured for alternating use of said subzero ...

Ultrasound Medical System and Method

An ultrasound medical system includes an interstitial end effector. The interstitial end effector is interstitially insertable into patient tissue, includes at least one medical-treatment ultrasound transducer, and includes at least one end-effector-tissue-track ablation device. One method for ultrasonically treating a lesion in a patient includes the steps of obtaining the interstitial end effector and inserting it into the patient creating a tissue track which is surrounded by patient tissue and which ends at the distal end of the inserted interstitial end effector. Other steps include ultrasonically ablating the lesion using the at-least-one medical-treatment ultrasound transducer, using the at-least-one end-effector-tissue-track ablation device to ablate the patient tissue surrounding the tissue track along substantially the entire tissue track, and withdrawing the end effector from the patient. 1. An ultrasound treatment system comprising:a probe comprising a treatment ultrasound transducer configured to treat patient tissue;a non-ultrasound tissue-property measuring sensor coupled to the probe; anda controller configured to communicate with the probe and the non-ultrasound tissue-property measuring sensor;wherein the non-ultrasound tissue-property measuring sensor is positioned to be in contact with the patient tissuewherein the controller is configured to control the probe and to receive feedback from the non-ultrasound tissue-property measuring sensor.2. The ultrasound treatment system according to claim 1 , wherein the non-ultrasound tissue-property measuring sensor is configured to measure tissue temperature.3. The ultrasound treatment system according to claim 2 , wherein the non-ultrasound tissue-property measuring sensor is at least one of a thermistor claim 2 , and a thermocouple.4. The ultrasound treatment system according to claim 1 , wherein the non-ultrasound tissue-property measuring sensor is configured to measure tissue electrical impedance.5. ...

HEMOSTASIS INSTRUMENT

A hemostasis instrument for actively stopping the bleeding, in particular after an open, laparoscopic, or endoscopic operation on a patient, having several hemostasis components. The hemostasis instrument has at least the following hemostasis components:—a thermal hemostasis device for tissue coagulation by producing a temperature above the coagulation temperature of biological tissue by means of a coagulation electrode;—a biochemical hemostasis device for producing a silent electric discharge by means of at least one discharge electrode, and an insulating device, wherein the insulating device is arranged between the discharge electrode and the tissue to be treated;—a supplying device for supplying substances that influence blood clotting to the tissue to be treated, and—a supply device for supplying noble gas to the tissue to be treated. 1. A hemostasis instrument for actively stopping bleeding , in particular after an open , laparoscopic or endoscopic operation on a patient , comprising a plurality of hemostasis components , wherein at least the following hemostasis components are provided:a thermal hemostasis apparatus for tissue coagulation by generating a temperature above the coagulation temperature of biological tissue by means of a coagulation electrode;a biochemical hemostasis apparatus for generating a dielectric barrier discharge by means of at least one discharge electrode and an insulation apparatus, wherein the insulation apparatus is arranged between the discharge electrode and the tissue to be treated;a supply apparatus for supplying substances influencing blood clotting to the tissue to be treated, anda supply apparatus for supplying noble gas to the tissue to be treated.2. The hemostasis instrument as claimed in claim 1 , wherein the hemostasis instrument comprises a further hemostasis component in the form of a heating apparatus for endogenous or exogenous heating of the blood during a dielectric barrier discharge to a temperature below the ...

THERMAL SURGICAL TOOL

An electrical conductor, such as a wire or catheter, which is coated circumferentially with a ferromagnetic material in a selected region, is fed from a high frequency alternating current source. The ferromagnetic material has a quick response in heating and cooling to the controllable power delivery. The ferromagnetic material can be used for separating tissue, coagulation, tissue destruction or achieving other desired tissue effects in numerous surgical procedures. 148.-. (canceled)49. A thermal surgical tool comprising an electrical conductor with a first section and second section , and a ferromagnetic coating covering a portion of the electrical conductor between the first section and second section.50. The thermal surgical tool of claim 49 , further comprising a power source and wherein the conductor is elongate and wherein the power source is attached to the conductor independent of the ferromagnetic coating such that passing power through the conductor heats the ferromagnetic coating.51. The thermal surgical tool of claim 50 , wherein the ferromagnetic coating covers a small area of the electrical conductor so as to limit heating of the entire conductor.52. The thermal surgical tool of claim 51 , wherein a portion of the conductor is formed claim 51 , and wherein the ferromagnetic coating is disposed on the conductor such that the ferromagnetic coating is exposed to tissue where the desired heating is to occur.53. The thermal surgical tool of claim 49 , wherein the electrical conductor is formed into a geometry.54. The thermal surgical tool of claim 53 , wherein the conductor geometry is selected from the group consisting of flexible loop claim 53 , rigid loop claim 53 , square claim 53 , pointed claim 53 , hook claim 53 , and angled.55. The thermal surgical tool of claim 49 , having a plurality of ferromagnetic coatings disposed on the electrical conductor.56. The thermal surgical tool of claim 49 , further comprising a thermal insulator disposed between ...

Systems and Methods for Treatment of Prostatic Tissue

A prostate therapy system is provided that may include any of a number of features. One feature of the prostate therapy system is that it can access a prostate lobe transurethrally. Another feature of the prostate therapy system is that it can deliver condensable vapor into the prostate to ablate the prostate tissue. Another feature of the prostate therapy system is that it can aspirate tissue from the prostate. Yet another feature of the prostate therapy system is that it can rotate during delivery of vapor and aspiration of tissue. Methods associated with use of the prostate therapy system are also covered. 1. A method of treating a disorder of a prostate comprising:introducing an ablation probe transurethrally into the prostate, the ablation probe having a longitudinal axis;injecting a condensable vapor through the ablation probe into the prostate; andtranslating the ablation probe along its longitudinal axis while injecting the condensable vapor into the prostate.2. The method of further comprising inserting an introducer into a urethra and advancing the ablation probe through the introducer.3. The method of wherein the introducing step comprises advancing the ablation probe into an apex of a lobe of the prostate.4. The method of further comprising aspirating prostate tissue proximally through the ablation probe to remove a core of prostate tissue.5. The method of further comprising rotating the ablation probe around its longitudinal axis while injecting the condensable vapor into the prostate.6. The method of wherein injecting the condensable vapor comprises delivering between 100 W and 1000 W to the prostate.7. The method of wherein injecting the condensable vapor comprises delivering between 250 cal/gram and 450 cal/gram to the prostate.8. The method of wherein aspirating prostate tissue further comprises removing between 10 grams and 50 grams of prostate tissue from the prostate.9. The method of wherein aspirating prostate tissue comprises removing prostate ...

MULTI-MODE SURGICAL TOOL

Thermal, electrosurgical and mechanical modalities may be combined in a surgical tool. Potentially damaging effects in a first modality may be minimized by using a secondary modality. In one example, thermal hemostasis may thus help electrosurgical applications avoid the adverse tissue effects associated with hemostatic monopolar electrosurgical waveforms while retaining the benefits of using monopolar incising waveforms. 156.-. (canceled)57. A multi-mode surgical tool comprising:a first modality for treating tissue; anda thermal element comprised of a ferromagnetic layer covering at least a portion of an electrical conductor.58. The multi-mode surgical tool of claim 57 , wherein the first modality comprises an electrosurgical electrode.59. The multi-mode surgical tool of claim 57 , wherein the first modality comprises an oscillating body.60. The multi-mode surgical tool of claim 57 , wherein the thermal element is separate from the first modality.61. The multi-mode surgical tool of claim 57 , wherein the thermal element is disposed adjacent to the first modality.62. The multi-mode surgical tool of claim 57 , further comprising a power supply for providing a signal to the first modality and the thermal element.63. The multi-mode surgical tool of claim 62 , wherein the signal provided to the first modality and the thermal element comprises oscillating electrical energy claim 62 , and wherein the first modality directs oscillating electrical energy into tissue and the thermal element converts oscillating electrical energy into thermal energy.64. The multi-mode surgical tool of claim 62 , wherein the signal provided to the first modality and the thermal element comprises oscillating electrical energy claim 62 , and wherein the first modality directs oscillating mechanical energy into tissue and the thermal element converts oscillating electrical energy into thermal energy.65. The multi-mode surgical tool of claim 62 , wherein one of the first modality and thermal ...

MEDICAL TREATMENT APPARATUS AND METHOD OF CONTROLLING THE SAME

A medical treatment apparatus includes a heat transfer portion, a heating chip, a temperature measurement unit and a control unit. The heat transfer portion comes into contact with a living tissue and transfers heat to the living tissue. The heating chip includes a heating region, is joined to the heat transfer portion, and heats the heat transfer portion by inputting energy to the heating region. The temperature measurement unit acquires a temperature of the heating region. The control unit controls a temperature of the heat transfer portion to a target temperature by controlling the temperature of the heating region to a temperature differing from the target temperature by an offset value which changes in accordance with an amount of the energy. 1. A medical treatment apparatus for treating a living body tissue by heating the living body tissue to a target temperature , the apparatus comprising:a heat transfer portion configured to come into contact with the living body tissue and transfer heat to the living body tissue;a heating chip including a heating region on one surface, joined to the heat transfer portion on the other surface, and configured to heat the heat transfer portion by inputting energy to the heating region;a temperature measurement unit configured to acquire a temperature of the heating region; anda control unit configured to control a temperature of the heat transfer portion to the target temperature by controlling the temperature of the heating region to a temperature differing from the target temperature by an offset value which changes in accordance with an amount of energy input to the heating region, based on the temperature of the heating region which is acquired by the temperature measurement unit.2. The apparatus of claim 1 , whereinthe heating region comprises a heating electric resistance pattern, andthe amount of the energy comprises an amount of an electric energy input to the heating electric resistance pattern.3. The apparatus of ...

INTRAVASCULAR ARTERIAL TO VENOUS ANASTOMOSIS AND TISSUE WELDING CATHETER

A catheter-based device tracks over a guidewire which has been placed from a first blood vessel into a second blood vessel. The distal tip of the catheter is advanced into the second vessel while a proximal member remains in the first vessel. Matching blunt tapered surfaces on each of the distal tip and the proximal member are clamped together, with adjacent walls of each vessel between them, after which a known, controlled pressure is applied between the two surfaces. Heat energy is then applied to the blunt surfaces for approximately 1-30 seconds to weld the walls of the two vessels together. After coaptation of the vessel walls, the heat is increased to then cut through the vessel walls to create a fistula of the desired size. 1. A device for creating an arteriovenous (AV) fistula , comprising:an elongate member;a distal member having a tapered distal end, connected to the elongate member and movable relative to the elongate member;a first heating member disposed on a blunt tapered face of one of said movable distal member and said elongate member; anda second heating member disposed on a blunt tapered face of the other one of said movable distal member and said elongate member;wherein the heating members are adapted to cut through said tissue to create the fistula.2. The device as recited in claim 1 , wherein said elongate member comprises an elongate outer tube.3. The device as recited in claim 1 , and further comprising a shaft for connecting the distal member to the elongate member claim 1 , the shaft being extendable and retractable to extend and retract said distal member relative to the elongate member.4. The device as recited in claim 3 , wherein one of the shaft and the distal member are fabricated of a flexible material.5. The device as recited in claim 1 , wherein the blunt tapered face on the proximal elongate member comprises a distal tapered face and the blunt tapered face on the distal member comprises a proximal tapered face claim 1 , and further ...

Electrochemical Transdermal Glucose Measurement System Including Microheaters and Process For Forming

A device contains individually controllable sites for electrochemically monitoring an analyte in interstitial fluid of a user. The sites include a conductive pattern attached at a first and second ends thereof to electrode material in a closed-circuit configuration for receiving a first predetermined voltage applied thereto in order to thermally ablate a stratum corneum of a user's skin to access the interstitial fluid and form an open-circuit configuration including first and second portions of the electrode material that are electrically isolated from each other; a sensing area deposited on at least one of the first and second portions of the electrode material; and a measuring component for receiving individual measurement data from the sensing area in response to a second predetermined voltage applied to the open circuit configuration. The individual measurement data is indicative of an amount of the analyte in the interstitial fluid.

Inductively heated multi-mode surgical tool

Thermal, Electrosurgical and Mechanical modalities may be combined in a surgical tool. Potentially damaging effects in a first modality may be minimized by using a secondary modality. In one example, thermal hemostasis may thus help electrosurgical applications avoid the adverse tissue effects associated with hemostatic monopolar electrosurgical waveforms while retaining the benefits of using incising waveforms.

Medical instrument and method of use

A medical for removing tissue from a patient includes an elongated probe with a working end. A pair of jaws is provided at the working end. The jaws may be closed for cutting and treatment of the tissue. Cutting may be effective through a sharpened cutting blade, and RF cutting blade, and similar cutting edges. The tissue may be remodeled using heat generated from passive heating elements on the jaws, active heating elements on the jaws, a PTCR heating element carried by the jaws, or resistive heaters on the jaws.

Devices for killing tumor cells and related systems and methods

Various devices, systems, and methods are capable of killing tumor cells by delivering cell-disrupting agents into a tumor in an inward direction from a peripheral border about the tumor. In some examples, a covering that includes one or more emissive elements encompasses at least a portion of a tumor such that the emissive element is directed inwardly toward the tumor so as to be able to introduce a cell-disrupting agent into the tumor. In further examples, the covering is incorporated into a glove.

Vertebral treatment

Methods and systems for modulating intraosseous nerves (e.g., nerves within bone) are provided. For example, the methods and systems described herein may be used to modulate (e.g., denervate, ablate) basivertebral nerves within vertebrae. The modulation of the basivertebral nerves may facilitate treatment of chronic back pain. The modulation may be performed by a neuromodulation device (e.g., an energy delivery device).

ELECTROSURGICAL DISSECTOR WITH THERMAL MANAGEMENT

An electrosurgical dissection apparatus is disclosed, and includes a thermally insulating body, a thermally conductive insert, at least one active electrode, and at least one return electrode. The at least one active electrode is disposed on the thermally conductive insert, and the at least one return electrode is spaced from the at least one active electrode by a portion of the thermally insulating body. The thermally conductive insert is configured to cauterize tissue dissected by radiofrequency energy passing from the at least one active electrode to the at least one return electrode. 1. An electrosurgical dissection apparatus , comprising:a thermally insulating body;a thermally conductive insert;at least one active electrode disposed on the thermally conductive insert;at least one return electrode, the at least one return electrode spaced from the at least one active electrode by a portion of the thermally insulating body;wherein the thermally conductive insert is configured to cauterize tissue dissected by radiofrequency energy passing from the at least one active electrode to the at least one return electrode.2. The electro surgical dissection apparatus of claim 1 , wherein the at least one active electrode is formed of a material selected from the group comprising copper claim 1 , silver claim 1 , and gold.3. The electro surgical dissection apparatus of claim 1 , wherein the thermally insulating body is formed from an amorphous polyamide.4. The electrosurgical dissection apparatus of claim 1 , wherein the thermally conductive insert is formed from alumina.5. The electrosurgical dissection apparatus of claim 1 , wherein the at least one active electrode is formed from a coating of conductive material.6. The electrosurgical dissection apparatus of claim 5 , wherein the conductive material is copper claim 5 , silver claim 5 , or gold.7. The electrosurgical dissection apparatus of claim 1 , further comprising at least a pair of approximatable jaw members claim 1 ...

MULTI-FUNCTIONAL SURGICAL CAUTERY DEVICE, SYSTEM AND METHOD OF USE

A surgical cautery device, system, and method of use may apply bipolar and/or sesquipolar electrocautery to target tissue via a pair of instruments with other primary surgical functions. The surgical cautery device and system may include first and second elements capable of forming an electrical circuit. The second element may be independently positionable with respect to the first element. The first and second elements may also include a surgical component with an independent surgical function. Exemplary surgical components include a rotary blade, a cutting tool, a grasper tool, a micro-scissors tool, a micro-grasping forceps tool, a dissector, a micro-dissector, curette, and a suction cannula. On some occasions, one of the surgical components may be interchangeable with another surgical component. 1. A device comprising:a first element; and 'wherein the first and second elements have a surgical component and are capable of forming an electrical circuit.', 'a second element, the second element being independently positionable with respect to the first element;'}2. The device of claim 1 , wherein the first and second elements are configured to contact a target tissue of a patient and claim 1 , upon completion of the electrical circuit claim 1 , deliver electrical energy to the target tissue.3. The device of claim 1 , wherein the first and second elements are configured to contact a target tissue of a patient and claim 1 , upon completion of the electrical circuit claim 1 , deliver electrical energy to the target tissue and approach the target tissue through one or more separate ports in the patient.4. The device of claim 1 , wherein the surgical component is at least one of a cutting tool claim 1 , grasper tool claim 1 , micro-scissors tool claim 1 , micro-grasping forceps tool claim 1 , dissector claim 1 , micro-dissector claim 1 , curette claim 1 , and a suction cannula.5. The device of claim 1 , wherein the surgical component is configured to be interchangeable ...

Treatment system and actuation method of treatment system

A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a grasped living tissue and is disposed at a grasping surface, and a control section which repeats a first control mode of performing control such that the heating element reaches a first temperature and a second control mode of performing control such that the heating element becomes lower than the first temperature, and controls the power source for heat generation according to a temperature change parameter based on change in temperature of the heating element in the first control mode or the second control mode so as to end application of the thermal energy.

MINIMALLY INVASIVE HAIR FOLLICLE INCAPACITATION APPARATUS AND METHODS

Methods, apparatus and systems for modifying hair follicles are disclosed herein. A method for modifying hair follicles may comprise inserting a tissue dissecting and modifying wand (TDM) into an incision in a patient's skin. The TDM may comprise a tip having a plurality of protrusions with lysing segments positioned between the protrusions. The TDM may also comprise an energy window positioned on top of the TDM that is configured to deliver energy to incapacitate hair follicles. After separating tissue using the lysing segment(s) to define a target region, the energy window may be activated and moved around within the target region to incapacitate hair follicles. In some implementations, the energy window may be activated prior to separating the tissue such that the tissue is separated while hair follicles are incapacitated within the target region. 1. A method for incapacitating hair follicles , the method comprising the steps of:creating an incision into a patient's skin; a tip comprising a plurality of protrusions; and', 'at least one lysing segment positioned between each of the protrusions;, "inserting a tissue dissecting and modifying wand into the incision and positioning the tissue dissecting and modifying wand beneath the patient's skin; wherein the tissue dissecting and modifying wand comprises:"}defining a target region for incapacitating hair follicles; andusing the tissue dissecting and modifying wand to at least partially incapacitate hair follicles within the target region.2. The method of claim 1 , wherein the tissue dissecting and modifying wand further comprises an energy window configured to deliver energy to incapacitate hair follicles within the target region.3. The method of claim 2 , wherein the energy window is positioned on an upper surface of the tissue dissecting and modifying wand.4. The method of claim 2 , wherein the energy window comprises a plurality of energy delivery regions within which energy is delivered and a plurality of ...

SURGICAL INSTRUMENTS WITH STRUCTURES TO PROVIDE ACCESS FOR CLEANING

A surgical instrument configured to facilitate access to interior components thereof for cleaning and refurbishment purposes. The instrument includes a housing assembly, an elongated shaft assembly and an end effector. The housing assembly includes an actuator, and the elongated shaft assembly includes an interior control member operatively coupled to the actuator. The elongated shaft assembly also includes outer cover including first and second cover members and a hinge coupling the first and second cover members to one another such that the outer cover may be selectively moved between a closed configuration wherein the interior control member is enclosed within the outer cover and an open configuration wherein the interior control member is exposed. The end effector is supported at a distal end of the elongated shaft assembly, and is operatively associated with the interior control member. 1. A surgical instrument , comprising:a housing assembly including an actuator;an elongated shaft assembly defining a longitudinal axis and extending from the housing assembly, the elongated shaft assembly including an interior control member operatively coupled to the actuator, and an outer cover including first and second cover members and a hinge coupling the first and second cover members to one another such that the outer cover may be selectively moved between a closed configuration wherein the interior control member is enclosed within the outer cover and an open configuration wherein the interior control member is exposed; andan end effector supported at a distal end of the elongated shaft assembly, the end effector operatively associated with the interior control member.2. The surgical instrument according to claim 1 , wherein the hinge extends along a longitudinal seam defined between the first and second cover members.3. The surgical instrument according to claim 2 , wherein the end effector is releasably supported at the distal end of the elongated shaft assembly such ...

Endovascular Closure Device

An aneurysm closure device that includes a retention assembly, adapted to retain the closure device in place on an aneurysm neck. Also, a seal has a wire frame, defining a set of eyeholes and thread, threaded through the set of eyeholes, to form a lattice. Finally, an expanse of silicone, is cured onto the thread, to form a barrier.

APPARATUS AND METHOD FOR POSITIONING AN IMPLANTABLE DEVICE

A catheter assembly for implanting a medical device, comprising a first wire and a second wire, electrically insulated from each other, attached to the medical device at a first attachment point and a second attachment point, respectively. The first wire defines a first region susceptible to electrolytic disintegration, by passing an electric current through it, contiguous to a the first attachment point. Similarly, and the second wire defines a second region susceptible to electrolytic disintegration, by passing an electric current through it, contiguous to the second attachment point. Also, there is a separately controllable electric supply for the first and the second wire, so that the first wire may be disconnected from the medical device, without disconnecting the second wire. 1. A method of implanting a medical device , including:a. providing an implantation catheter including a first wire and a second wire, electrically insulated from each other, attached to said medical device at a first attachment point and a second attachment point, respectively, said first wire defining a first region susceptible to electrolytic disintegration, contiguous to a said first attachment point, and said second wire defining a second region susceptible to electrolytic disintegration, contiguous to said second attachment point;b. positioning said medical device at a first desired positioning;c. passing electricity through said first wire, sufficient to heat and disintegrate said first region susceptible to electrolytic disintegration, thereby freeing said medical device from said first wire; andd. manipulating said medical device with said second wire to achieve a second desired positioning; ande. passing electricity through said second wire, sufficient to heat and disintegrate said second region susceptible to electrolytic disintegration, thereby freeing said medical device from said second wire.2. The method of claim 1 , wherein said medical device is a aneurysm seal.3. The ...

METHODS AND APPARATUS FOR COAGULATING AND/OR CONSTRICTING HOLLOW ANATOMICAL STRUCTURES

An energy delivering probe is used for thermally coagulating and/or constricting hollow anatomical structures (HAS) including, but not limited to, blood vessels such as perforator veins. The probe includes a shaft and an energy source. 1. A method of treating a perforator vein comprising:achieving direct percutaneous access into tissue with a rigid stylet having a resistive heating coil forming a portion of an exterior surface of the stylet, and a sharp tip, the resistive heating coil being covered by an electrically insulative sleeve;advancing the stylet to the perforator vein; andoccluding the perforator vein by applying energy from the resistive heating coil to the perforator vein.2. The method of claim 1 , wherein achieving direct percutaneous access is done without the use of an introducer sheath.3. The method of claim 1 , wherein occluding further comprises applying energy to an exterior surface of the perforator vein.4. The method of claim 1 , wherein occluding further comprises applying energy to an interior vessel wall of the perforator vein.5. The method of claim 1 , wherein the sharp tip is fixedly received within the stylet.6. The method of claim 1 , wherein the resistive heating coil is at a distal section of the stylet.7. The method of claim 1 , wherein the resistive heating coil is tapered.8. The method of claim 1 , wherein the advancing and occluding are performed under ultrasound guidance.9. The method of claim 1 , wherein advancing the stylet to the perforator vein further comprises advancing the stylet to the perforator vein below a fascial layer claim 1 , the fascial layer comprising deep fascia through which the perforator vein passes to connect a superficial vein with a deep vein.10. The method of claim 9 , wherein occluding the perforator vein comprises occluding the perforator vein below the fascial layer.11. The method of claim 1 , wherein occluding the perforator vein comprises occluding a portion of the perforator vein.12. A method ...

METHOD FOR TREATING TISSUE WITH A FERROMAGNETIC THERMAL SURGICAL TOOL

An electrical conductor, such as a wire or catheter, which is coated circumferentially with a ferromagnetic material in a selected region, is fed from a high frequency alternating current source. The ferromagnetic material has a quick response in heating and cooling to the controllable power delivery. The ferromagnetic material can be used for separating tissue, coagulation, tissue destruction or achieving other desired tissue effects in numerous surgical procedures. 116.-. (canceled)17. A method for treating tissue , the method comprising:selecting a primary geometry having a conductor disposed thereon, the conductor having a ferromagnetic coating disposed on a portion thereof;disposing the ferromagnetic coating into contact with the tissue; anddelivering an oscillating electrical signal to the conductor so as to heat the ferromagnetic coating and treat the tissue.18. The method according to claim 17 , further comprising the step of choosing a primary geometry selected from the group of scalpel claim 17 , spatula claim 17 , ball and pointed geometry19. The method according to claim 17 , further comprising the step of choosing a primary geometry that forms a portion of forceps.20. The method according to claim 17 , wherein the treat the tissue comprises vascular endothelial welding the tissue.21. The method according to claim 17 , wherein the treat the tissue comprises incising the tissue.22. The method according to claim 17 , wherein the treat the tissue comprises causing hemostasis in the tissue.23. The method according to claim 17 , wherein the treat the tissue comprises ablating the tissue.24. A method for tissue destruction claim 17 , the method comprising:selecting a conductor having a ferromagnetic coating disposed on a portion thereof; anddelivering an oscillating electrical signal to the conductor so as to heat the ferromagnetic coating and destroy tissue.25. The method for tissue destruction of claim 24 , further comprising:monitoring the tissue; ...

SELECTIVE LUNG TISSUE ABLATION

Medical methods and systems are provided for effecting lung volume reduction by selectively ablating segments of lung tissue. 1. A treatment apparatus for ablating a treatment site in a lung of a patient , comprising:a shaft having a proximal end and a distal end; andan energy emitting element disposed near the distal end of the shaft, wherein the energy-emitting element is configured to extend through and conform to an airway in the treatment site of the lung.2. A treatment apparatus as in claim 1 , wherein the energy emitting element comprises an elongate coil shaped electrode.3. A treatment apparatus as in claim 1 , wherein the energy emitting element comprises an elongate braided wire electrode.4. A treatment apparatus as in claim 1 , wherein the energy-emitting element includes an expansion element which expands the energy emitting element to conform to a shape of the airway of the treatment site.5. A treatment apparatus as in claim 4 , wherein the expansion element comprises an inflatable balloon.6. A treatment apparatus as in claim 4 , wherein the expansion element comprises a constraint which can be released to allow the expansion element to self-expand.7. A treatment apparatus as in claim 1 , wherein the energy emitting element comprises an electrically resistive coil or a hot fluid element.8. A method for selectively ablating a treatment region in a lung comprising:advancing a treatment apparatus through an airway toward the treatment region in the lung;exchanging energy through the treatment apparatus to heat or cool the treatment region to a level which destroys tissue at the region; andprotecting adjacent regions in the lung and surrounding tissue from thermal damage by controlling pressure or temperature at the treatment region and at one or more untreated regions adjacent the treatment region.9. A method as in claim 8 , wherein the tissue is raised to a temperature in the range from 40° C. to 95° C.10. A method as in claim 8 , wherein the delivered ...

Instruments and Methods for Thermal Tissue Treatment

Disclosed herein are high efficiency surgical devices and methods of using same using radio frequency (RF) electrical power and/or electrically heated filaments to destroy tumors, form lesions, denaturize, desiccate, coagulate and ablate soft tissues, as well as to drill, cut, resect and vaporize soft tissues. According to the principles of this invention, the electrosurgical instruments can be used with externally supplied conductive or non-conductive liquids, as well as without externally supplied liquids, a mode of operation often referred to as “dry field” environment. 1. An electrosurgical instrument for thermal tissue treatment comprising:a. an elongate shaft having a proximal end, a distal end and a longitudinal axis, wherein said proximal end is configured for connection to a power source and said a distal end is configured for connection to an electrode assembly; i. an active electrode formed from an electrically conductive material and connected via one or more connecting elements disposed within said shaft to a power source;', 'ii. a floating electrode formed from an electrically conductive material that is positioned in close proximity said active electrode and not directly electrically connected to either the linear elongate shaft or a power source; and', 'iii. an insulator formed from a nonconductive dielectric material that separates said active and floating electrodes to define a cavity therebetween; and, 'b. an electrode assembly mounted to the distal end of said elongate shaft, said electrode assembly comprisingc. a means for supplying an irrigant to said cavity;wherein powering of said active electrode in the presence of an irrigant results in flow of current from said active electrode to said floating electrode, heating of said irrigant and generation of steam in said cavity, wherein heated irrigant and steam flow out of said cavity and thermally treat target tissue upon contact.2. The electrosurgical instrument of claim 1 , wherein said tissue ...

ELECTRODES FOR TISSUE TREATMENT

An energy delivery device is disclosed. The energy delivery device may include an elongate member having a proximal end and a distal end, and an energy emitting portion coupled to the distal end of the elongate member. The energy emitting portion may be configured to transition between a first, collapsed configuration and a second, expanded configuration. In addition, the energy emitting portion may include a plurality of legs forming a basket, such that when the energy emitting portion is in the second, expanded configuration a central portion of at least one of the legs includes a substantially straight configuration. 1. An energy delivery device , comprising:an elongate member having a proximal end and a distal end; andan energy emitting portion coupled to the distal end of the elongate member, wherein the energy emitting portion is configured to transition between a first, collapsed configuration and a second, expanded configuration;wherein the energy emitting portion includes a plurality of legs forming a basket, and wherein when the energy emitting portion is in the second, expanded configuration a central portion of at least one of the legs includes a substantially straight configuration.2. The energy delivery device of claim 1 , wherein the central portion of the at least one leg is between proximal and distal portions of the at least one leg claim 1 , and wherein the central portion is stiffer than each of the proximal and distal portions.3. The energy delivery device of claim 2 , wherein the central portion of the at least one leg includes a modulus of elasticity that is greater than a modulus of elasticity of each of the proximal and distal portions.4. The energy delivery device of claim 2 , wherein the central portion of the at least one leg includes a cross-section dimension that is larger than a corresponding cross-section dimension of both the proximal and distal portions.5. The energy delivery device of claim 1 , wherein at least a portion of the ...

BLADE LOCKOUT MECHANISM FOR SURGICAL FORCEPS

A forceps includes first and second shaft members and a trigger assembly. The first and second shaft members each have a jaw member disposed at a distal end thereof. One or both of the jaw members are moveable to position the jaw members between an open position and a closed position. One of the jaw members is configured for reciprocation of a blade therethrough. The trigger assembly is movable between unactuated and actuated positions to selectively translate the blade between a retracted position and one or more extended positions. The blade extends at least partially through one or both of the jaw members in the one or more extended positions such that when the blade is disposed in the one or more extended positions, the trigger assembly is configured to move to the unactuated position upon movement of the jaw members from the closed position to the open position. 1. A forceps , comprising:first and second shaft members each having a jaw member disposed at a distal end thereof, at least one of the jaw members moveable to position the jaw members between an open position and a closed position for grasping tissue between the jaw members, at least one of the jaw members configured for reciprocation of a blade therethrough; anda trigger assembly movable between an unactuated position and an actuated position to selectively translate the blade between a retracted position and at least one extended position, the blade extending at least partially through at least one of the jaw members in the at least one extended position such that when the blade is disposed in the at least one extended position, the trigger assembly is configured to move to the unactuated position upon movement of the jaw members from the closed position to the open position.2. The forceps according to claim 1 , wherein the trigger assembly includes a trigger and at least one linkage claim 1 , the at least one linkage coupled at a first end to the trigger and coupled at a second end to the blade.3. ...

System for relieving stress at pipe connections using external sleeve

A pipe attachment assembly for attaching a pipe to another structure so stresses are reduced within the assembly includes a sleeve positioned outside the pipe which is composed of a material stronger than the pipe material, and an elastomeric bonding material which fills a gap between the pipe and the sleeve. The elastomeric bonding material transfers forces which are externally imposed on the pipe to the sleeve. This reduces bending, compression, tension, or torsion of the pipe in response to external forces, which in turn reduces the risk of a pipe failure at or near the termination or a breach where the pipe forms a joint with other pipes or containers. Various configurations may further improve the transfer of shearing stresses from the pipe to the sleeve, for example varying the width and/or the shear modulus of the elastomeric bonding material along the length of the pipe.

SURGICAL STAPLING APPARATUS WITH CLAMPING ASSEMBLY

A surgical stapling apparatus includes a handle assembly and an elongate portion extending distally from the handle assembly. An end effector disposed adjacent a distal portion of the elongate portion includes an anvil assembly and a cartridge assembly, wherein at least one of the cartridge assembly and the anvil assembly is movable with respect to the other to move the end effector between an open configuration where the cartridge assembly and the anvil assembly are substantially spaced and a closed configuration where the cartridge assembly and the anvil assembly are closer together. The end effector also includes a clamping assembly including a first clamping surface deployable to extend laterally from the anvil assembly, and a second clamping surface deployable to extend laterally from the cartridge assembly such that, when deployed, the first and second clamping surfaces oppose one another when the cartridge assembly is in the closed position. 111-. (canceled)12. A method of grasping tissue , the method comprising: a handle assembly;', 'a tubular elongate portion extending distally from the handle assembly and including a fluid conduit extending at least partially therethrough; and', a first jaw member including a first opposed surface;', 'a second jaw member including a second opposed surface; and', 'a fluid reservoir in fluid communication with the fluid conduit;, 'an end effector disposed adjacent a distal end of the tubular elongate portion, the end effector including], 'providing a surgical apparatus includinginflating the fluid reservoir to increase an effective clamping surface area over which the first and second jaw members oppose one another; andmoving the second jaw member relative to the first jaw member between an open position and an approximated position.13. The method of claim 12 , wherein the first jaw member includes an anvil assembly including a fastener forming surface thereon claim 12 , wherein the second jaw member includes a cartridge ...

SYSTEMS AND METHODS FOR PERCUTANEOUS INTRAVASCULAR ACCESS FOR ARTERIOVENOUS FISTULA

A device for extending, elongating, or repairing a previously created arteriovenous fistula between a first blood vessel and an adjacent second blood vessel includes a main body having a primary lumen and an articulating jaw member disposed at the distal end of the main body. The jaw member is configured with two elements to allow rotation of one element about a pivot point to grasp tissue while being rotated. The jaw member is also configured to allow thermal energy delivery to one or both elements of the jaw member that allow tissue welding and cutting with DC, RF, Laser or Ultrasonic energy. A second lumen located within one element of the jaw member is configured to allow advancement over a guidewire into the second vessel while the other element of the jaw member remains within the first blood vessel at the position where the arteriovenous fistula, or aperture, exists between the first and second blood vessel. 1. A device for elongating , extending , or repairing a tissue aperture , comprising:a handle;a body connected to and extending distally from the handle, comprised of a flexible material and having a primary lumen;a rigid jaw member connected to and extending distally from the flexible body; anda tissue cutting element disposed on the jaw member.2. The device as recited in claim 1 , wherein the flexible material comprising the body is a polymer.3. The device as recited in claim 2 , wherein the polymer comprising the body has a Shore A hardness of 70-90.4. The device as recited in claim 1 , wherein the rigid jaw member is fabricated of a rigid material comprising either a metal or a rigid polymer having a Shore A hardness greater than 90.5. The device as recited in claim 1 , wherein the jaw member comprises two elements claim 1 , each having distal ends claim 1 , wherein one of the elements is pivotable relative to the other element to create a spacing of varying sizes between the two elements at their respective distal ends.6. The device as recited in ...

THERMAL CAUTERY SURGICAL FORCEPS

A portable, thermal cauterizing forceps device for use in surgery. The device incorporates a pair of ceramic heater elements mounted within the tips of the tines of a forceps. The forceps is used to grasp tissue or blood vessels and apply heat to effect cauterization. The forceps instrument can incorporate a battery and control electronics. The thermal-forceps is of a self-contained wireless, handheld disposable design. The forceps handpiece can be connected to an external power source. The forceps can incorporate a set of rapidly heating ceramic heater elements that may be composed of silicon nitride. An LED provides the operator feedback as to the operating level of the heaters and/or battery reserve. The forceps can include a rechargeable power supply, variable control of the heater temperature, as well as a, digital display of the tip temperature. 1. (canceled)2. A thermocautery surgical forceps , comprising:a surgical forceps body including a pair of elongate tine members extending from the forceps body to respective opposed free end tip portions spaced from the forceps body, the tine members being mounted to the forceps body in a manner providing resilient compressible movement of the tine members between a normally open position wherein the tine members are disposed in an aligned and spaced-open relationship and a squeezed closed position wherein the tip portions of the tine members are disposed in a confronting abutting relationship;power source leads configured to be electrically connectable to a power supply, at least one of said tip portions of the tine members comprising a heater element connected to the power source leads and said heater element having a flat, gripping and heating surface defined on an inner facing surface of said at least one of said tip portions; anda circuit board configured to supply a high initial current to the heater element for rapid heat and to supply a reduced current to said heater element for maintenance of the heat,the tine ...

CATHETER

A catheter includes: a shaft at least a part of which is to be inserted into a blood vessel; an inlet; an outlet formed in the shaft; a lumen which extends inside the shaft, and through which the inlet and outlet communicate with each other; a balloon disposed on an outer circumference of the shaft, and expandable and contractable; an electrode disposed on a surface of the balloon; a signal acquirer electrically connected to the electrode; a first hole formed in the shaft in a zone between the balloon and the inlet; and a second hole formed in the shaft in a zone between the balloon and the outlet. A blood flowing through the blood vessel is made possible to flow in one of the first and second holes, and flow out from the other hole. 1. A catheter comprising:a shaft at least a part of which is to be inserted into a blood vessel of a living body;a first inlet;a first outlet which is formed in the shaft;a first lumen which extends inside the shaft, and through which the first inlet and the first outlet communicate with each other;a balloon which is disposed on an outer circumference of the shaft, and which is expandable and contractable;an electrode which is disposed on a surface of the balloon;a signal acquirer which is electrically connected to the electrode;a first hole which is formed in the shaft in a zone between the balloon and the first inlet; anda second hole which is formed in the shaft in a zone between the balloon and the first outlet, whereina blood flowing through the blood vessel is made possible to flow in one of the first and second holes, and flow out from the other of the first and second holes.2. The catheter according to claim 1 , wherein the first and second holes communicate with the first lumen.3. The catheter according to claim 1 , further comprising:a second inlet;a second outlet which is formed in the shaft; anda second lumen which extends inside the shaft, and through which the second inlet and the second outlet communicates with each other ...

APPARATUS FOR PERFORMING AN ELECTROSURGICAL PROCEDURE

A surgical instrument is provided and includes a housing having a shaft. An end effector assembly is operatively connected to a distal end of the shaft and has a pair of first and second jaw members that are movable relative to one another. A drive assembly operably couples to a handle assembly associated with the housing and is configured to impart movement of a respective jaw member when the handle assembly is actuated. A spring component operably associated with each of the jaw members is configured to provide a sealing force at the jaw members. 13-. (canceled)4. An endoscopic forceps , comprising:a housing having a shaft that extends therefrom defining a longitudinal axis therethrough;a handle assembly operatively coupled to the housing and movable relative thereto;an end effector assembly operatively coupled to a distal end of the shaft and having a pair of first and second jaw members, the first and second jaw members movable relative to one another from an open position wherein the first and second jaw members are disposed in spaced relation relative to one another, to a clamping position wherein the first and second jaw members cooperate to grasp tissue therebetween;a drive assembly operably coupled to the handle assembly, the drive assembly including two wires each including a proximal end that operably couples to the handle assembly and a distal end that operably couples to respective first and second jaw members, the two wires configured to impart movement of respective first and second jaw members when the handle assembly is actuated; anda center link operably coupled to the first and second jaw members via a respective cam member that is operably disposed within cam slots defined within respective first and second jaw members.5. An endoscopic forceps according to claim 4 , wherein each of the respective cam slots is disposed substantially parallel to the longitudinal axis and one another when the jaw first and second members are in the open position.6. ...

DEVICES AND METHODS FOR CUTTING TISSUE

Various medical devices and methods for cutting, evacuating and/or performing work on tissue are provided. The devices and methods may utilize a reciprocating mechanism or motor powered by suction from a vacuum source. The medical devices and methods may be used on tissue in various regions of a patient's body and for treating various conditions, e.g., for performing a polypectomy. 115-. (canceled)16. A tissue cutting device comprising:an elongate shaft having a proximal portion, a distal portion and a lumen defined therein, wherein the distal portion includes an opening for receiving tissue;wherein the distal portion includes at least a section which is configured to be manipulated into a first configuration by hand without the use of a separate tool prior to inserting the distal portion of the elongate shaft into a patient's body, wherein the elongate shaft is configured to retain the manipulated first configuration of the distal portion, wherein the manipulated distal portion is configured to be hand adjusted into a second configuration, wherein the elongate shaft is configured to retain the manipulated second configuration of the distal portion, such that the elongate shaft can access a variety of anatomical locations during a procedure;a cutting mechanism positioned within the distal portion of the elongate shaft, wherein the cutting mechanism is configured to be actuated within the distal portion of the elongate shaft and past the opening to cut tissue in the opening, and wherein manipulation of the distal portion causes manipulation of the cutting mechanism and the opening; anda chamber coupled to the proximal portion of the elongate shaft, the chamber having a cutting mechanism driver assembly positioned therein.17. The device of claim 16 , wherein the opening is positioned on a side of the distal portion of the elongate shaft.18. The device of claim 16 , wherein the distal portion of the elongate shaft comprises slits in the elongate shaft which allow for ...

PERINEAL PROBE AND PROCESS FOR MAKING A PERINEAL PROBE

A perineal probe () is provided mainly extending along a main axis () and including at least two electrodes () protruding from the axial direction (), spaced one another and electrically insulated along the axial direction (), one junction element () being apt to mechanically connect the electrodes () and mainly extending along the main axis (), in which at least one of the electrodes () includes a seat () for the junction element () apt to realize a first interlocking coupling () between the junction element () and the seat (), the junction element () including an inner cavity () mainly extending along the main axis () and elastically deformable portions () apt to realize the first interlocking coupling (), the probe () further including an inner body () apt to be inserted into the inner cavity () and being apt to hinder the elastic deformation of the deformable portions () of the junction element () in such a way as to prevent the release of the first interlocking coupling (). 1. A perineal probe extending along a main axis , comprising: at least two electrodes protruding from said axial direction , spaced apart from one another and electrically insulated along said axial direction , one junction element configured to mechanically connect said at least two electrodes and extending along said main axis , at least one of said at least two electrodes comprising a seat for said junction element to realize a first interlocking coupling between said junction element and said seat , said junction element comprising an inner cavity extending along said main axis and elastically deformable portions configured to realize said first interlocking coupling , and that it comprises an inner body configured to be inserted in said inner cavity and configured to prevent for interference the elastic deformation of said deformable portions of said junction element to prevent the release of said first interlocking coupling.2. The perineal probe according to claim 1 , wherein said at ...

MEDICAL DEVICES FOR THERMALLY TREATING TISSUE

A medical device for treating tissue includes a tissue-contacting surface and a solid state heating element that is thermally coupled to the tissue-contacting surface. The solid state heating element is configured to generate heat to thermally treat tissue. 1. A medical device for treating tissue , comprising:a tissue-contacting surface; anda solid state heating element thermally coupled to the tissue-contacting surface, the solid state heating element configured to generate heat to thermally treat tissue.2. The medical device according to claim 1 , further comprising control circuitry coupled to the solid state heating element claim 1 , the control circuitry configured to regulate heat generation by the solid state heating element.3. The medical device according to claim 2 , wherein the control circuitry and the solid state heating element are packaged or integrated together.4. The medical device according to claim 2 , wherein the control circuitry and the solid state heating element are part of an integrated circuit.5. The medical device according to claim 2 , further comprising at least one temperature-sensing element configured to sense a temperature of at least one of: the solid state heating element claim 2 , tissue claim 2 , and another element thermally coupled to the solid state heating element or tissue.6. The medical device according to claim 5 , wherein the temperature-sensing element and the solid state heating element are packaged or integrated together.7. The medical device according to claim 5 , wherein the temperature-sensing element and the solid state heating element are part of an integrated circuit.8. The medical device according to claim 5 , wherein the temperature-sensing element is coupled to the control circuitry for feedback-based control of the solid state heating element.9. The medical device according to claim 8 , wherein the feedback-based control limits the temperature of the solid state heating element.10. The medical device according ...

SYSTEMS AND METHODS FOR CREATING ARTERIOVENOUS (AV) FISTULAS

A system for creating an arteriovenous (AV) fistula comprises a vessel access sheath having a hollow interior and an exit port, a side access needle catheter configured to fit within the hollow interior of the sheath, a needle configured to be inserted into a blood vessel through the side access needle catheter, a toggle delivery catheter configured to fit within the hollow interior of the sheath, and a toggle apparatus configured to be delivered into a vessel through the toggle delivery catheter. The toggle apparatus comprises a shaft and a toggle member pivotably attached to a distal end of the shaft. A source of RF energy or resistive heat energy may be provided for application to the toggle member and/or to a heater insert in the toggle delivery catheter, for the purpose of creating the fistula. 135-. (canceled)36. An apparatus , comprising:a first portion having a proximal end and a distal end;a second portion movably coupled to the first portion, the second portion configured to be delivered through a first body lumen and into a second body lumen;an energy delivery portion operatively coupled to at least one of the first portion and the second portion; andan actuator configured to move the second portion from a first position disposed apart from a wall of the second body lumen to a second position adjacent the wall of the second body lumen.37. The apparatus of claim 36 , and further comprising a shaft coupled between the actuator and the second portion claim 36 , the shaft configured to be slidably positioned within a lumen defined by the first portion.38. The apparatus of claim 36 , wherein the first portion and the second portion are configured to be separated by a first distance when the apparatus is in a first configuration and the first portion and the second portion are configured to be separated by a second distance when the apparatus is in a second configuration claim 36 , the first distance being different than the second distance.39. The apparatus of ...

SINGLE ACTION TISSUE SEALER

An endoscopic bipolar forceps includes a housing and a shaft, the shaft having an end effector assembly at its distal end. The end effector assembly includes two jaw members for grasping tissue therebetween. The jaw members are adapted to connect to an electrosurgical energy source which enable them to conduct energy through the tissue to create a tissue seal. A drive assembly is disposed within the housing which moves the jaw members. A switch is disposed within the housing which activates the electrosurgical energy. A knife assembly is included which is advanceable to cut tissue held between the jaw members. A movable handle is connected to the housing. Continual actuation of the movable handle engages the drive assembly to move the jaw members, engages the switch to activate the electrosurgical energy source to seal the tissue, and advances the knife assembly the cut the tissue disposed between the jaw members. 116-. (canceled)17. A bipolar forceps , comprising:a housing;an elongated shaft extending distally from the housing;an end effector assembly engaged to a distal end of the elongated shaft, the end effector assembly including a first jaw member and a second jaw member, the first jaw member pivotable relative to the second jaw member from a first open position to a second closed position for grasping tissue, the jaw members adapted to connect to an electrosurgical energy source such that the jaw members are capable of conducting energy through tissue grasped therebetween;a drive assembly disposed within the housing and operable to pivot the first jaw member from the first open position to the second closed position;a switch operably associated with the housing and actuatable to energize the jaw members;a knife advanceable to cut tissue grasped between the jaw members; anda movable handle connected to the housing and selectively rotatable about a pivot point, wherein continuous actuation of the movable handle is operable to force the drive assembly to pivot ...

SELECTIVELY DEFORMABLE ABLATION DEVICE

In accordance with at least one aspect of this disclosure, an ablation apparatus includes a proximal body portion, a shaft extending distally from the proximal body portion, the shaft being selectively deformable utilizing at least one deformation system between a first position wherein the shaft is straight an a second position wherein the shaft is bent, the at least one deformation system configured to retain the shaft in each of the first and second positions, and at least one electrode disposed at least partially within the shaft, the electrode movable with the shaft upon movement of the shaft between the first and second positions. 1. An ablation apparatus , comprising:a proximal body portion;a shaft extending distally from the proximal body portion, the shaft being selectively deformable utilizing at least one deformation system between a first position wherein the shaft is substantially straight and a second position wherein the shaft is bent, the at least one deformation system configured to retain the shaft in each of the first and second positions; andat least one electrode disposed at least partially within the shaft, the at least one electrode movable with the shaft upon movement of the shaft between the first and second positions.2. The ablation apparatus of claim 1 , wherein the deformation system comprises a goose-neck type shaft having at least two links operably coupled to each other.3. The ablation apparatus of claim 2 , wherein the goose-neck type shaft includes a flexible layer disposed thereon to cover one or more separations between the at least two links.4. The ablation apparatus of claim 1 , wherein the shaft is made of a flexible material claim 1 , and the deformation system comprises a line pull system claim 1 , the line pull system comprising:at least one anchor fixedly attached to the shaft; andat least one line connected to the at least one anchor and configured to be pulled to bend the shaft.5. The ablation apparatus of claim 4 , ...

MULTI-FUNCTION BI-POLAR FORCEPS

An end effector is disclosed. The end effector includes a first jaw member. The first jaw member comprises a first electrode. The first jaw member defines a first aperture at a distal end. The end effector includes a second jaw member. The second jaw member comprises a second electrode. The second jaw member defines a second aperture at a distal end. The second jaw member is operatively coupled to the first jaw member. The first and second apertures are configured to define a single aperture when the first and second jaw members are in a closed position. The first and second electrodes are configured to deliver energy. 1. An end effector comprising:a first jaw member defining a first aperture at a distal end, the first jaw member comprising a first electrode located proximally of the first aperture, wherein the first electrode comprises a positive temperature coefficient (PTC) material; anda second jaw member defining a second aperture at a distal end, the second jaw member comprising a second electrode located proximally of the second aperture, wherein the second jaw member is operatively coupled to the first jaw member, wherein the first and second apertures are configured to define a single aperture when the first and second jaw members are in a closed position, wherein the second electrode comprises a PTC material, and wherein the first and second electrodes are configured to deliver energy.2. The end effector of claim 1 , wherein the first and second jaw members define a longitudinal channel claim 1 , the end effector comprising a cutting member slideably receivable within the longitudinal channel claim 1 , wherein the cutting member is deployable along the longitudinal channel claim 1 , and wherein the longitudinal channel is located proximally of the first and second apertures.3. The end effector of claim 2 , wherein the first electrode comprises a first PTC (positive temperature coefficient) electrode and a second a PTC electrode claim 2 , wherein the first ...

Jaw assemblies for electrosurgical instruments and methods of manufacturing jaw assemblies

A jaw assembly includes a jaw member and a structural insert. The jaw member includes an arm member and a support base extending distally from the arm member. The arm member defines a first portion of the jaw member. The support base defines a second portion and a third portion of the jaw member. The second portion defines a cavity disposed between the first portion and the third portion. At least a portion of the structural insert is disposed within the cavity.

JAW ASSEMBLIES FOR ELECTROSURGICAL INSTRUMENTS AND METHODS OF MANUFACTURING JAW ASSEMBLIES

A jaw assembly includes an electrically-conductive tissue-engaging structure, a jaw member including a support base, and a non-electrically conductive member including a first portion configured to engage the electrically-conductive tissue-engaging structure and a second portion configured to engage the support base of the jaw member. The non-electrically conductive member adapted to electrically isolate the electrically-conductive tissue-engaging structure from the jaw member. The electrically-conductive tissue-engaging structure and the non-electrically conductive member cooperatively define a longitudinally-oriented knife channel therethrough. 1. A jaw assembly , comprising:an electrically-conductive tissue-engaging structure;a jaw member including a support base; anda non-electrically conductive member including a first portion configured to engage the electrically-conductive tissue-engaging structure and a second portion configured to engage the support base of the jaw member, the non-electrically conductive member adapted to electrically isolate the electrically-conductive tissue-engaging structure from the jaw member, wherein the electrically-conductive tissue-engaging structure and the non-electrically conductive member cooperatively define a longitudinally-oriented knife channel therethrough.2. The jaw assembly of claim 1 , wherein the electrically-conductive tissue-engaging structure includes a first portion and a second portion claim 1 , the first and second portions at least partially separated by the longitudinally-oriented knife channel.3. The jaw assembly of claim 1 , wherein the non-electrically conductive member includes a body defining a first lateral side portion having a first length and a second lateral side portion having a second length.4. The jaw assembly of claim 3 , wherein the first and second lateral side portions are joined at one end by an apex disposed at the distal end of the body and spaced apart at opposing ends to define an opening ...

ELECTROSURGICAL DEVICES, SYSTEMS AND METHODS OF USING THE SAME

According to an aspect of the present disclosure, a desiccation device for operation on a target tissue is provided. The device includes a handle; a shaft extending distally from the handle, wherein the shaft defines a lumen therethrough; and a head having a loop configuration supported on a distal end of the shaft, the head being hollow and defining a lumen therethrough, said lumen being in fluid communication with the lumen of the shaft. At least a portion of the cutting head is electrically connected to a source of electrosurgical energy. A fluid is circulatable through the lumen of the shaft and the head. 1. A surgical device for operation on a target tissue , the surgical device comprising:a shaft defining a longitudinal axis;a suction lumen supported by the shaft and being adapted to connect to a fluid source; andan electrode operatively connected to the shaft and supported at a distal end thereof, the electrode including a scraping edge;wherein at least a portion of the electrode is disposed in a fixed spaced apart relation relative to the suction lumen such that the suction lumen may aspirate coagulated tissue.2. The surgical device according to claim 1 , wherein the electrode includes a conductive surface claim 1 , and wherein the scraping edge is a non-conductive surface.3. The surgical device according to claim 2 , wherein the scraping edge is spaced apart from the suction lumen by a distance that is one of approximately equal to an inner diameter of the suction lumen or approximately less than the inner diameter of the suction lumen.4. The surgical device according to claim 1 , further comprising wherein the fluid source is in fluid communication with the electrode.5. The surgical device according to claim 1 , wherein the shaft supports an inflow conduit and an outflow conduit claim 1 , said inflow conduit and outflow conduit each operatively fluid interfacing the electrode with the fluid source.6. The surgical device according to claim 1 , wherein the ...

SURGICAL TOOL

Disclosed is a surgical tool. The surgical tool comprises a surgical tool head () and a rod shaft (). The surgical tool head () is connected with the shaft (). The shaft () is a flexible shaft and comprises a flexible core and a flexible sleeve. The flexible sleeve has an inner cavity, and the flexible core is slidably disposed in the inner cavity. The surgical tool head () comprises two jaws (). The flexible core and the flexible sleeve are respectively connected with the two jaws (), and the flexible core is able to slide relatively to the flexible sleeve to drive the two jaws () to make relative opening and closing movements. The shaft () of the surgical tool can be bent freely into any shape, and thus can be integrated into a flexible surgical tool and applied in a wider range. 1. A surgical tool , comprising:a surgical tool head comprising a first jaw and a second jaw; and a flexible core connected with the second jaw; and', 'a flexible sleeve connected with the first jaw, the flexible sleeve comprising an inner cavity, and the flexible core being slidably disposed in the inner cavity and operable to slide relatively to the flexible sleeve to drive relative opening and closing of the first and second jaws., 'a shaft connected with the surgical tool head and comprising2. The surgical tool according to claim 1 , wherein the flexible core comprises:an elastic metal wire;a first covering tube wrapping the elastic metal wire and fixed relatively to the elastic metal wire.3. The surgical tool according to claim 1 , wherein the flexible sleeve comprises:a metal tube forming the inner cavity; anda second covering tube wrapping the metal tube and fixed relatively to the metal tube.4. The surgical tool according to claim 3 , wherein the first jaw comprises an electrode connected with the metal tube.5. The surgical tool according to claim 3 , wherein the metal tube comprises a spiral metal band claim 3 , a metal wire mesh or a corrugated metal tube.6. The surgical tool ...

METHOD OF MANUFACTURING MEDICAL HEATER, MEDICAL HEATER, TREATMENT TOOL, AND TREATMENT SYSTEM

A method of manufacturing a medical heater that includes arranging, on an electrically isolated substrate, (i) a heating element configured to generate heat based on a supply of electric current to the heating element, (ii) a metal film electrically connected to the heating element, and (iii) a wiring member bonded to the film. The method arranges a lead wire of the wiring member on the film, and arranges a metal bypass member on the film. A pair of welding electrodes are connected with the lead wire, and then welding the lead wire to the film occurs by allowing electric current to flow between the pair of welding electrodes. 1. A method of manufacturing a medical heater , the method comprising:arranging, on an electrically isolated substrate, (i) a heating element configured to generate heat based on a supply of electric current to the heating element, (ii) a metal film electrically connected to the heating element, and (iii) a wiring member bonded to the film;arranging a lead wire of the wiring member on the film;arranging a metal bypass member on the film;connecting a pair of welding electrodes with the lead wire; andwelding the lead wire to the film by allowing electric current to flow between the pair of welding electrodes.2. The method according to claim 1 , further comprising pressing the lead wire against the film.3. The method according to claim 1 , wherein:a bypass region is formed on the film, andthe bypass member is arranged such that at least a part of the bypass member is located in the bypass region.4. The method according to claim 3 , wherein the bypass region is a region that is located between two virtual lines that partition a region covering all of the film claim 3 , the virtual lines individually passing through contact points of the pair of welding electrodes to the lead wire claim 3 , and the virtual lines are located orthogonally to a direction connecting the contact points.5. The method according to claim 4 , wherein:the bypass member is ...

WIRELESS PAIRING OF A SURGICAL DEVICE WITH ANOTHER DEVICE WITHIN A STERILE SURGICAL FIELD BASED ON THE USAGE AND SITUATIONAL AWARENESS OF DEVICES

A surgical system includes a first surgical device comprising a control circuit. The control circuit is configured to be situationally aware of events occurring within the vicinity of the first surgical device according to data received from a database, a patient monitoring device, or a paired surgical device, or any combination of a database, patient monitoring device, or paired surgical device. The control circuit is configured to be wirelessly paired with a second surgical device according to usage of the first surgical device and the events of which the first surgical device is situationally aware. 1. A surgical system comprising: be situationally aware of events occurring within a vicinity of the first surgical device according to data received from a database, a patient monitoring device, or a paired surgical device, or any combination of the database, the patient monitoring device, or the paired surgical device; and', 'wirelessly pair with a second surgical device according to a usage of the first surgical device and the events of which the first surgical device is situationally aware,', 'wherein the first surgical device is located within a sterile field and the second surgical device is located outside the sterile field when the first surgical device wirelessly pairs with the second surgical device., 'a first surgical device comprising a control circuit, the control circuit configured to2. The surgical system of claim 1 , wherein the events of which the first surgical device is situationally aware comprise a first user using the first surgical device and a second user using the second surgical device.3. The surgical system of claim 2 , wherein the events comprising the first user using the first surgical device comprise the first user grasping a handle of the first surgical device.4. The surgical system of claim 3 , wherein the events comprising the first user grasping a handle of the first surgical device comprise the first user grasping the handle of the ...

Adjustable clamp systems and methods

Tissue treatment systems include an actuator handle assembly coupled with a clamp assembly having a first jaw mechanism and a second jaw mechanism. A first jaw mechanism includes a first flexible boot, a first flexible ablation member coupled with the first flexible boot, and a first rotatable jawbone disposed within the first flexible boot. A second jaw mechanism comprises a second flexible boot, a second flexible ablation member coupled with the second flexible boot, and a second rotatable jawbone disposed within the second flexible boot.

TRANSLATABLE OUTER TUBE FOR SEALING USING SHIELDED LAP CHOLE DISSECTOR

Aspects of the present disclosure are presented for a surgical instrument for cutting and sealing tissue. In some embodiments, the surgical instrument includes a handle assembly, a shaft, and an end effector. The end effector may include: a blade that vibrates at an ultrasonic frequency, a shielded portion enclosing a back edge of the blade, a high-friction surface coupled to the shielded portion and positioned between the shielded portion and the back edge of the blade. A space is defined between the high-friction surface and the back edge of the blade when the end effector is in a cutting configuration. In a sealing configuration, the high-friction surface contacts the back edge of the blade, which generates heat based on ultrasonic vibrations of the blade rubbing against the high-friction surface. The shielded portion can coagulate bleeding tissue based on heat transfer from the high-friction surface to the shielded portion. 1. An end effector , comprising:a blade having a cutting edge configured to dissect and coagulate tissue and a back edge, the blade is configured to couple to an ultrasonic waveguide and configured to vibrate at ultrasonic frequency to dissect and coagulate the tissue;a shielded portion enclosing the back edge of the blade; anda high-friction surface coupled to the shielded portion and positioned between the shielded portion and the back edge of the blade, wherein a space is defined between the high-friction surface and the back edge of the blade when the end effector is configured into a dissecting configuration;wherein, when the end effector is configured into a sealing configuration, the high-friction surface contacts the back edge of the blade and is configured to generate heat by frictionally coupling the ultrasonic vibrations of the blade to the high-friction surface, and wherein the shielded portion is configured to coagulate tissue by coupling heat from the high-friction surface to the tissue.2. The end effector of claim 1 , further ...

CONTROL DEVICE FOR ENERGY TREATMENT TOOL, AND ENERGY TREATMENT SYSTEM

A control device is a control device for an energy treatment tool including a first holding member and a second holding member which hold a biological tissue, and a heating element configured to generate heat corresponding to supplied power, thereby heating a holding surface. The control device includes a temperature acquiring section that acquires a temperature of the heating element; and a surface temperature estimating section that estimates, as a surface temperature, a temperature of at least a part of a surface of the first holding member which is different from a portion facing the second holding member, based on a change of the temperature of the heating element after supply of the power is stopped. 1. A control device for an energy treatment tool comprising a first holding member configured so that a holding surface comes in contact with a biological tissue , a second holding member that is configured to open and close relatively to the first holding member to hold the biological tissue between the first holding member and the second holding member , and a heating element configured to generate heat corresponding to supplied power , thereby heating the holding surface , the control device comprising:a temperature acquiring section that acquires a temperature of the heating element; anda surface temperature estimating section that estimates, as a surface temperature, a temperature of at least a part of a surface of the first holding member which is different from a portion facing the second holding member, based on a change of the temperature of the heating element after supply of the power is stopped.2. The control device according to claim 1 , wherein the temperature acquiring section acquires an electric resistance value of the heating element claim 1 , and acquires the temperature of the heating element based on the electric resistance value.3. The control device according to claim 1 , further comprising a control section that controls the power to be ...

Connectable catheter system

There are provided a connectable catheter system, device and methods of use thereof. The connectable catheter system, comprising: an intermediary catheter and a reconnectable indwelling stent wherein the intermediary catheter and the indwelling stent are configured to connect, within a subject body to form a continuous fluid conduit between the intermediary catheter and the reconnectable indwelling stent and to further allow controlled release of substances and/or heating of internal target regions.

SYSTEM AND METHOD FOR BRONCHIAL DILATION

A method of reducing bronchial constriction in a subject includes delivering energy to create one or more lesions on a main bronchus so as to transect pulmonary nerves sufficiently to reduce bronchial constriction in a lung of the patient distal to the main bronchus. 1delivering energy so as to damage pulmonary nerves located along an airway in the subject sufficiently to reduce bronchial constriction in a lung of the patient; andpreventing re-innervation of the pulmonary nerves.. A method of reducing bronchial constriction in a subject, comprising: This application is a continuation of application Ser. No. 15/853,030 filed Dec. 22, 2017, which in turn is a continuation of application Ser. No. 15/401,825 filed Jan. 9, 2017, now U.S. Pat. No. 9,867,986 issued Jan. 16, 2018, which in turn is a continuation of application Ser. No. 14/841,836 filed Sep. 1, 2015, now U.S. Pat. No. 9,539,048 issued Jan. 10, 2017, which in turn is a continuation of application Ser. No. 14/265,443 filed Apr. 30, 2014, now U.S. Pat. No. 9,125,643 issued Sep. 8, 2015, which in turn is a continuation of application Ser. No. 13/920,801 filed Jun. 18, 2013, now U.S. Pat. No. 8,731,672 issued May 20, 2014, which in turn is a continuation of U.S. patent application Ser. No. 13/523,223 filed Jun. 14, 2012, now U.S. Pat. No. 8,489,192 issued Jul. 16, 2013, which in turn is a continuation of U.S. patent application Ser. No. 12/372,607 filed Feb. 17, 2009, now U.S. Pat. No. 8,483,831 issued Jul. 9, 2013, which in turn claims the benefit of U.S. Provisional Application No. 61/066,026 filed Feb. 15, 2008, and U.S. Provisional Application No. 61/049,605 filed May 1, 2008, each of which is hereby fully incorporated herein.This document pertains generally to medical devices, and more particularly, but not by way of limitation, to systems and methods for bronchial stimulation.Obstructive pulmonary disease, including asthma, emphysema, or chronic bronchitis, afflicts more than 25 million individuals in the ...

RENAL NERVE MODULATION BALLOON HAVING IMPROVED ROBUSTNESS

A balloon for renal nerve modulation, the balloon comprising a polymer material forming a balloon wall having an interior surface and an exterior surface and flexible circuits adhesively bonded to the exterior surface of the balloon wall, wherein the exterior surface comprises laser induced microstructures on at least a portion of said exterior surface. 1. A balloon for renal nerve modulation , the balloon comprising:a polymer material forming a balloon wall having an interior surface and an exterior surface; andone or more flexible circuits adhesively bonded to the exterior surface of the balloon wall;wherein the exterior surface comprises laser induced microstructures on at least a portion of said exterior surface; andwherein said laser induced microstructures have an average surface roughness of about 0.25 μm to about 0.45 μm.2. The balloon of claim 1 , wherein said laser induced microstructures have a height of about 1 μm to about 3 μm.3. The balloon of claim 1 , wherein said flexible circuits are adhesively bonded to the exterior surface of the balloon wall with a thermoset adhesive.4. The balloon of claim 3 , wherein said thermoset adhesive is a UV cured adhesive.5. The balloon of claim 4 , wherein said adhesive is a urethane-acrylic adhesive.6. The balloon of claim 1 , wherein said polymer material comprises a non-compliant polymer material.7. The balloon of claim 6 , wherein said non-compliant polymer material is polyethylene terephthalate.8. The balloon of claim 1 , wherein said polymer material comprises a semi-compliant or a compliant polymer material.9. The balloon of claim 1 , where said flexible circuits comprise a polyimide material having copper lithographically printed thereon.10. The balloon of claim 1 , wherein said flexible circuits comprise laser induced microstructures.11. The balloon of claim 1 , wherein said balloon comprises a body claim 1 , a proximal waist claim 1 , a proximal cone claim 1 , a distal waist and a distal cone and said at ...

Methods, systems and devices for performing multiple treatments on a patient

Methods, systems and devices for treating a patient include performing a first treatment to treat a first portion of tissue and performing a second treatment to treat a second portion of tissue. The second portion of tissue is treated at least twenty-four hours after the first portion of tissue is treated. In particular embodiments, the first portion of tissue includes duodenal tissue, and the second portion of tissue includes duodenal or other gastrointestinal tissue.

BIPOLAR FORCEPS

A bipolar forceps may include a first forceps arm having a first forceps arm conductor tip; a second forceps arm having a second forceps arm conductor tip; and an input conductor isolation mechanism having a first forceps arm housing and a second forceps arm housing. The first forceps arm may be disposed in the first forceps arm housing and the second forceps arm may be disposed in the second forceps arm housing. The first forceps arm conductor tip may include a chrome conversion coating configured to prevent tissue from sticking to the first forceps arm conductor tip during a surgical procedure. The second forceps arm conductor tip may include a chrome conversion coating configured to prevent tissue from sticking to the second forceps arm conductor tip during a surgical procedure. 1. An instrument comprising:a first forceps arm having a first forceps arm distal end and a first forceps arm proximal end;a first forceps arm grip of the first forceps arm having a first forceps arm grip distal end and a first forceps arm grip proximal end wherein the first forceps arm grip distal end is disposed between the first forceps arm distal end and the first forceps arm proximal end and wherein the first forceps arm grip proximal end is disposed between the first forceps arm distal end and the first forceps arm proximal end;a first forceps jaw of the first forceps arm having a first forceps jaw distal end and a first forceps jaw proximal end wherein the first forceps jaw distal end is the first forceps arm distal end and wherein the first forceps jaw proximal end is disposed between the first forceps arm grip distal end and the first forceps arm distal end;a first conductor tip of the first forceps arm having a first conductor tip distal end and a first conductor tip proximal end wherein the first conductor tip distal end is the first forceps arm distal end and the first forceps jaw distal end and wherein the first conductor tip proximal end is disposed between the first forceps ...

APPARATUS AND METHOD FOR INTRA-CARDIAC MAPPING AND ABLATION

An intra-cardiac mapping system is based on locating the ports through which blood flows in or out the heart chambers. For many procedures, such as ablation to cure atrial fibrillation, locating the pulmonary veins and the mitral valve accurately allows to perform a Maze procedure. The location of the ports and valves is based on using the convective cooling effect of the blood flow. The mapping can be performed by a catheter-deployed expandable net or a scanning catheter. The same net or catheter can also perform the ablation procedure. 117-. (canceled)18. A system comprising:a plurality of elements configured at least to be introduced into an intra-cardiac cavity; and locate points on a wall of the intra-cardiac cavity based at least on sensing blood flow with the elements;', 'map the wall of the intra-cardiac cavity based at least on the located points; and', 'update the map based at least on a repositioning of the plurality of elements in the intra-cardiac cavity., 'a control computer coupled to the plurality of elements and configured at least to19. The system of claim 18 , wherein the control computer is configured at least to locate the points on the wall of the intra-cardiac cavity based at least on sensing temperature with the elements.20. The system of claim 18 , wherein the control computer is configured at least to locate the points on the wall of the intra-cardiac cavity at least in response to reception of signals from the plurality of elements claim 18 , the signals indicative of convective heat transfer by the blood flow.21. The system of claim 18 , further comprising a source coupled to at least a first one of the elements to provide electric current thereto claim 18 , the electric current sufficient to cause heating of at least a portion of the first one of the elements claim 18 , wherein the control computer is configured at least to locate at least one of the points on the wall of the intra-cardiac cavity based at least on sensing of electrical ...

END EFFECTOR ENABLING GRASPING OF TISSUE AND PLASMA RADIATION TO TISSUE, AND ENDOSCOPIC SYSTEM COMPRISING SAID END EFFECTOR

Provided is an end effector enabling the grasping of tissue and plasma radiation to tissue. This end effector comprises: a grasping member for grasping tissue; and a plasma generation mechanism capable of generating plasma. A pulling means is connected to the plasma generation mechanism, and by operation of the connected pulling means, grasping of tissue by the grasping means is achieved. The plasma generation means is configured so as to enable plasma to be radiated at the position where the grasping member grasps tissue. 1. An end effector comprising:a grasping member for grasping tissue; anda plasma generation mechanism that can generate plasma.2. The end effector of claim 1 , further comprising a hinge part claim 1 , wherein:the grasping member and the plasma generation mechanism are connected to each other at the hinge part; andthe grasping member is configured to be able to rotate around the hinge part.3. The end effector of claim 1 , further comprising a connection part that can connect with a pulling means that can pull the plasma generation mechanism claim 1 , wherein activation of the pulling means that has been connected achieves grasping of the tissue with the grasping member.4. The end effector of claim 3 , wherein the connection part is configured so that the puling means would be detachable.5. The end effector of claim 1 , wherein the grasping member is configured to be able to be electrically controlled.6. The end effector of claim 1 , wherein the plasma generation mechanism is configured so that the plasma can be irradiated to a position where the grasping member grasps the tissue.7. The end effector of claim 1 , wherein the grasping member comprises a plurality of grasping pieces.8. The end effector of claim 1 , wherein:the plasma generation configuration has a housing shape having a hollow part;the housing comprises a first electrode and a second electrode that is different from the first electrode; andthe plasma generation mechanism turns gas ...

Medical device and treatment method

A medical device and a treatment method, in which energy is accurately applied to a target site by suppressing a positional displacement between an expansion body and a biological tissue. The medical device includes an elongated shaft portion and an expansion body disposed in a distal portion of the shaft portion and configured to expand and contract in a radial direction. The expansion body includes a holding portion having a proximal side holding portion and a distal side holding portion configured to hold the biological tissue, and a movable portion configured to open and close the holding portion.

Medical device

A medical device is disclosed which can suppress torsion of a wire in a circumferential direction in an expansion body formed using the wire. The medical device includes an elongated shaft portion, and an expansion body disposed in a distal portion of the shaft portion, the expansion body configured to expand and contract in a radial direction. The expansion body has wire portions in which a distal portion and a proximal portion are linked with the shaft portion, and a holding portion formed using at least one of the wire portions, and holding a biological tissue. At least one of a proximal side and a distal side of the holding portion has an opening portion formed using a wire portion or formed using a plurality of the wire portions. When the expansion body expands, the wire portion forming the holding portion faces the opening portion.

SYSTEMS AND METHODS FOR TREATING TISSUE WITH RADIOFREQUENCY ENERGY

A device for applying radiofrequency energy for sphincter treatment comprising a flexible outer tube, an expandable basket having a plurality of arms movable from a collapsed position to an expanded position, and a plurality of electrodes movable with respect to the arms from a retracted position to an extended position. An advancer is slidably disposed within the outer tube to move the plurality of electrodes to the extended position. An actuator moves the advancer from a first position to a second position to advance the plurality of electrodes. An aspiration tube extends within the outer tube. An assembly includes an aspiration disabler having a first position to enable aspiration from a distal portion of the aspiration tube to a proximal portion and a second position to disable aspiration. 116-. (canceled)17. A method of treating gastrointestinal reflux disease comprising:providing a treatment device having a plurality of electrodes and an assembly having a disabler for disabling aspiration through an aspiration tube extending within the device, the disabler having a first position to enable aspiration from a distal portion of the aspiration tube to a proximal portion of the aspiration tube, the disabler movable to a second position to disable aspiration to facilitate axial and rotational movement of the treatment device within tissue and to limit undesired movement of tissue which can cause overtreatment of tissue and tissue ablation;applying radiofrequency energy to the plurality of electrodes to thermally treat tissue below a tissue ablation threshold and create a plurality of tissue lesions along axially spaced tissue levels within the upper gastrointestinal tract;monitoring tissue temperature throughout the applying of radiofrequency energy; andregulating power ensuring in response to the monitoring of tissue temperature that the tissue temperature does not exceed a predetermined value which would cause tissue ablation and/or tissue necrosis.18. The method ...

APPARATUS AND METHOD FOR INTRA-CARDIAC MAPPING AND ABLATION

An intra-cardiac mapping system is based on locating the ports through which blood flows in or out the heart chambers. For many procedures, such as ablation to cure atrial fibrillation, locating the pulmonary veins and the mitral valve accurately allows to perform a Maze procedure. The location of the ports and valves is based on using the convective cooling effect of the blood flow. The mapping can be performed by a catheter-deployed expandable net or a scanning catheter. The same net or catheter can also perform the ablation procedure. 1. (canceled)2. A method comprising:providing a structure and a plurality of elements arranged on the structure;activating at least a group of elements in the plurality of elements to generate heat, each element in the group of elements activated to generate heat sufficient to cause an increase in temperature above blood temperature but insufficient to cause tissue ablation;displaying a representation of a first spatial distribution of at least the group of elements; anddisplaying, for each particular element in the group of elements, respective information related to the heat generated by the activation of the particular element.3. The method of claim 2 , comprising displaying claim 2 , for each particular element in the group of elements claim 2 , the respective information related to the heat generated by the activation of the particular element at least proximate a location of the particular element in the displayed first spatial distribution of at least the group of elements.4. The method of claim 2 , comprising displaying all of the respective information for all elements in the group of elements according to a second spatial distribution claim 2 , the second spatial distribution corresponding to the first spatial distribution of at least the group of elements.5. The method of claim 2 , comprising displaying claim 2 , for each particular element in the group of elements claim 2 , the respective information related to the heat ...

TREATMENT SYSTEM, AND TREATMENT METHOD FOR LIVING TISSUE USING ENERGY

A treatment system includes a pair of holding members, a high-frequency energy output section, a heat generating section and a control section. At least one of the pair of holding members moves to the other holding member. The high-frequency energy output section and the heat generating section are provided on at least one of the holding members. The high-frequency energy output section exerts high-frequency energy to a living tissue to denature the living tissue, and collects the biological information of the living tissue. The heat generating section applies heat to it held between the holding members, generates the heat owing to the supply of the energy, and conducts the heat therefrom to denature the living tissue. The control section controls the output of the energy to the high-frequency energy output section and the heat generating section based on the biological information collected by the high-frequency energy output section. 1. A surgical controller for controlling an electrosurgical apparatus , the surgical controller comprising:a circuit configured to detect an impedance of a tissue between a pair of holding members disposed at the electrosurgical apparatus and to output an impedance value indicative of the impedance; and controlling a first generator to apply a first electric power to a first energy element that is provided on each of the holding members and is configured to apply a first energy to the tissue, the first energy generating Joule heat in the tissue to heat the tissue;', 'receiving the impedance value from the circuit;', 'when the impedance value reaches a first threshold value, controlling a second generator to set a second electric power to be applied to a second energy element to a value higher than before reaching the first threshold value, the second energy element being configured to apply a second energy to the tissue, the second energy coagulating the tissue from a surface side of the tissue contacting a grasping face of the ...

Capsulotomy Cartridge

A cartridge of a surgical device is disclosed that includes a capsulotomy device and a shell structure. The capsulotomy device includes a suction cup, a chamber configured to provide suction to the suction cup, and a cutting element that can be put into contact with a lens capsule of an eye to excise a portion of tissue of the lens capsule. Both the suction cup and cutting element are collapsible. The shell structure is configured for housing the capsulotomy device. The housing of the shell structure can contain the suction cup, the chamber, and the cutting element of the capsulotomy device to protect the device before it is used in performing a capsulotomy. 1. A cartridge of a surgical device , the cartridge comprising: a suction cup,', 'a chamber in fluid communication with the suction cup, the chamber configured to provide suction to the suction cup via a suction mechanism operable through a handpiece, and', 'a cutting element coupled to the suction cup in a position such that the cutting element can be put into contact with a lens capsule of an eye to excise a portion of tissue of the lens capsule, the suction cup and cutting element being collapsible; and, 'a capsulotomy device comprisinga shell structure configured for housing the capsulotomy device within, the shell structure comprising a housing having an outer surface configured to contain the suction cup, the chamber, and the cutting element of the capsulotomy device within the outer surface to protect the capsulotomy device before use in performing a capsulotomy.2. The cartridge of claim 1 , wherein the cartridge is reversibly attachable to the handpiece of the surgical device claim 1 , and wherein the cartridge is positionable on the handpiece such that claim 1 , when the surgical device is in use for performing the capsulotomy claim 1 , suction is provided to the suction cup via the suction mechanism operable through the handpiece.3. The cartridge of claim 1 , further comprising a suction generator ...

SYSTEMS, DEVICES AND METHODS FOR PERFORMING MEDICAL PROCEDURES IN THE INTESTINE

A method for performing a medical procedure in an intestine of a patient is provided. The method comprises providing a system comprising: a catheter for insertion into the intestine, the catheter comprising: an elongate shaft comprising a distal portion; and a functional assembly positioned on the shaft distal portion and comprising at least one treatment element. The catheter is introduced into the patient, and target tissue is treated with the at least one treatment element. The target tissue comprises mucosal tissue of the small intestine, and the medical procedure can be configured to treat at least one of non-alcoholic fatty liver disease (NAFLD) or non-alcoholic steatohepatitis (NASH). 1. A method for performing a medical procedure in an intestine of a patient , comprising:providing a system comprising:a catheter for insertion into the intestine, the catheter comprising:an elongate shaft comprising a distal portion; anda functional assembly positioned on the shaft distal portion and comprising at least one treatment element;introducing the catheter into the patient; andtreating target tissue with the at least one treatment element, wherein the target tissue comprises mucosal tissue of the small intestine;wherein the medical procedure is configured to reduce liver fat in the patient.2. The method according to claim 1 , wherein the medical procedure is further configured to reduce and/or prevent fibrosis of the liver.3. The method according to claim 1 , wherein the medical procedure is further configured to treat Type 2 diabetes.4. The method according to claim 1 , wherein the medical procedure is further configured to treat a disease or disorder selected from the group consisting of: Type 2 diabetes; Type 1 diabetes; “Double diabetes”; gestational diabetes; hyperglycemia; pre-diabetes; impaired glucose tolerance; insulin resistance; and combinations thereof.5. The method according to claim 1 , wherein treating target tissue modifies at least one of (1) nutrient ...

SURGICAL FORCEPS AND LATCHING SYSTEM

A surgical forceps comprising: a first working arm and a second working arm configured to move towards and away from each other; and an electromagnetic latching system; wherein the electromagnetic latching system is configured to create a force that is in a direction aligned with closing of the forceps or opposite to the closing of the forceps when an electromagnetic activation button is depressed. 1) A surgical forceps comprising:a first working arm and a second working arm configured to move in a direction that is towards and away from each other in a manner that creates a resilient moving force; andan electromagnetic latching system located in or on the first working arm, the second working arm, or both;wherein a first electromagnetic latch of the electromagnetic latching system has a constant magnetic field, and a second electromagnetic latch of the electromagnetic latching system has a variable magnetic field.2) The surgical forceps of claim 19 , wherein the force applied is based upon a measurement of impedance of tissue held between the first working arm and the second working arm.3) (canceled)4) (canceled)5) The surgical forceps of claim 1 , wherein both of the first electromagnetic latch and the second electromagnetic latch one or more electromagnetic latches are connected to power so that when power is applied each of the electromagnetic latches create a force that biases the first working arm and the second working arm towards each other; a force that biases the first working arm and the second working arm apart; or both.6) (canceled)7) The surgical forceps of claim 1 , wherein an amount of force required to move the first working arm and second working arm apart claim 1 , together claim 1 , or both is variable by a user.8) (canceled)9) The surgical forceps of claim 1 , wherein the surgical forceps are an electrosurgical device.10) The surgical forceps of claim 1 , wherein the first working arm and the second working arm include a neutral position and ...

ABLATION AND OCCLUSIVE SYSTEM

An example medical system for ablating and occluding the left atrial appendage is disclosed. The example system includes a catheter sized and shaped for vascular access and including an elongate body extending between a proximal end and a distal end. A first expandable member may be positioned near the distal end of the elongate body and have a first region configured to permeate a liquid therethrough. A first set of one or more electrodes may be arranged within the first expandable member and may be configured to deliver energy to the tissue region. An occlusive implant may be releasably secured to the distal end of the elongate body. 1. An ablation and implant system , the system comprising:a catheter sized and shaped for vascular access and including an elongate body extending between a proximal end and a distal end;a first expandable member positioned near the distal end of the elongate body and having a first region configured to permeate a liquid therethrough;a first set of one or more electrodes arranged within the first expandable member and configured to deliver energy to the tissue region; andan occlusive implant releasably secured to the distal end of the elongate body.2. The system of claim 1 , further comprising:a second expandable member and having a first region configured to permeate a liquid therethrough and positioned between the first expandable member and the occlusive implant; anda second set of one or more electrodes arranged within the second expandable member.3. The system of claim 1 , wherein the first region of the first expandable member is configured to transfer energy from the first set of one more electrodes to the tissue region.4. The system of claim 1 , further comprising a direct current source electrically coupled to the first set of one or more electrodes.5. The system of claim 1 , wherein the direct current source is configured to deliver pulses of voltage in the range of about 1000 to about 5000 volts.6. The system of claim 4 , ...