Abstract: Thermally adjustable surgical tools include a conductor and a ferromagnetic material. The ferromagnetic material may be quickly heated when subjected to high frequency alternating current through the conductor. The ferromagnetic material may also cool rapidly because of its relatively low mass and the small thermal mass of the conductor. The thermally adjustable surgical tools may be used to sculpt, melt, break and/or remove biological material. The thermally adjustable surgical tools may also include balloon catheters which can heat fluid to thereby treat biological material.

Abstract: A medical retrieval device of an embodiment of the present disclosure includes a proximal handle, a sheath, and a retrieval assembly. The sheath extends from the handle and includes a lumen and a distal end opposite the handle. The retrieval assembly is moveable relative to the sheath to achieve a collapsed position of the retrieval assembly within the lumen and an expanded position of the retrieval assembly when extended outside the lumen. The retrieval assembly includes a plurality of legs. At least one of the legs includes a wire having an inner core at least partially surrounded by an outer layer.

Abstract: A bipolar electrosurgical colpotomy device includes a colpotomy cup and a tissue containment bag. The colpotomy cup includes a first electrode located adjacent to a rim of the cup, the rim being configured to contact an internal surface of a patient's cervico-vaginal junction. The tissue containment bag includes an opening and a second electrode located adjacent to the opening. The tissue containment bag is configured to surround the patient's uterus and the opening is configured to fit over an external surface of the patient's cervico-vaginal junction. Applying a voltage potential between the first and second electrodes vaporizes tissue at the patient's cervico-vaginal junction by electrosurgical energy passing through the tissue disposed between the first and second electrodes. The tissue containment bag then can be used to remove the uterus from the patient, possibly after masticating the uterus within the bag.

Abstract: The present embodiments provide apparatus and methods for treating tissue by applying a force to the tissue. In one embodiment, the apparatus comprises a deployable segment having proximal and distal regions, a main body extending therebetween, and a loop member formed at the distal region of the deployable segment. A cannula having a bore is dimensioned to circumferentially surround at least a portion of the main body at a location proximal to the loop member, and a spring member is disposed between the cannula and the loop member. The proximal end of the spring member is affixed to the cannula, and the distal end of the spring member is movable to apply a compressive force to adjust the size of the opening of the loop member and compress tissue disposed within the opening of the loop member. In an alternative embodiment, the cannula is omitted, and a diameter of the loop member is configured to be reduced and increased any number of times before final deployment of the deployable segment.

Abstract: A medical retrieval basket used for entrapping and extracting objects such as urinary and biliary calculi from the body comprising a handle assembly, a flexible shaft, and a basket. The basket comprises a plurality of outwardly disposed shape memory wires and is bulbous in shape at its distal end. Located at the intersection point of the wires at the distal end of the basket is a hub that restricts the degree of relative movement between the wires. This hub also serves to increase contact points with the object to be retrieved and to stabilize the orientation of the basket wires. The substantially tipless configuration of the distal end of the basket permits the basket to retrieve objects from difficult to reach locations and reduces tissue trauma caused by the basket tip. The basket wires have varying cross sectional shapes and sizes in different sections of the basket to optimize the performance to the needs of each section within the basket.

Abstract: A cautery assembly may include aninsulation ring and a monopolar cautery wire. A cautery assembly may include a monopolar cautery wire and an electrical conductor.

Abstract: A retrieval device with releasably attached loops is disclosed. Attachment portions on one or both ends of the shaft of the snare device may allow one or more loops to be coupled or de-coupled from the shaft. The retrieval device may further comprise a delivery conduit configured to receive both a snare shaft and a guidewire in one or more lumens.

Abstract: A snare for snaring an article in a vessel of a vascular system or other body vessel. The snare includes a core cable having a proximal end portion and a distal end portion. The snare also includes first, second and third loops each having a proximal end portion and a distal end portion, and a mid-portion therebetween formed by spaced apart first and second sides connected together at the distal end portion of the loop. The mid-portions of each of the loops cross over mid portions of one of the other two loops, and the loops are only connected together at their proximal end portions, where they are gathered together and attached to the distal end portion of the core cable. The loops are movable between an open position and a closed position.

Abstract: A high-frequency treatment instrument having a sheath; an elongated extension member; a narrow portion provided on an inner surface of the sheath; and a pressing member which allows the elongated extension member to advance and retract only in a part of the sheath. The elongated extension member is advanced to form a first treatment electrode extending along a central axial line of the sheath and the elongated extension member is further advanced to form a second treatment electrode which intersects with the central axial line of the sheath.

Abstract: In accordance with an aspect of the present disclosure, the medical device includes a snare member having a proximal portion and a distal portion. The medical device also includes an operating member extending proximally of the snare member. The operating is enabled to extend and retract the snare member from a sheath. The snare member includes a transition portion extending between the proximal portion and the distal portion. The transition portion connects the proximal portion to the distal portion. The distal portion has a different cross-sectional area than the proximal section of the snare member.

Abstract: Embodiments of the present disclosure include medical devices and related methods of use, and manufacture thereof. The medical device may include a snare including an elongate actuation member and a distal snare member. The medical device may further include a snare support including first and second arms and a base member disposed proximate to the elongate actuation member. The first arm may extend from the base member to a first lateral portion of the distal snare member and the second arm may extend from the base member to a second lateral portion of the distal snare member opposite the first lateral portion. Each arm may be moveably coupled to the distal snare member.

Abstract: A selectively bendable remote access gripping tool, includes a jaw portion having a pair of jaws or nets movable relative to each other between clamped and opened positions thereof, a handle portion spaced apart from the jaw portion by a bendable central portion that has a hollow, corrugated member that is bendable, and a cord extending through the hollow bendable member that connects the jaw portion and the handle portion.

Abstract: A device and related method of use is provided for the capture and removal of various unwanted objects present within the body's anatomical lumens. In an embodiment of the present disclosure, the device includes an external elongate member; an internal elongate member disposed within the external elongate member; and a retrieval assembly connected to the internal elongate member and retractable within and extendable from a lumen of the external elongate member. The retrieval assembly includes an end configured to be selectively open or substantially closed.

Abstract: A snare device having multiple loops is described. The loops may be configured having various sizes or shapes and may be configured for use within a single outer sheath. Each loop provided in connection with a single snare device may have a different size, shape, disposition, or orientation than other loops associated with the same snare device.

Abstract: A snare for snaring an article in a vessel of a vascular system or other body vessel. The snare includes a core cable having a proximal end portion and a distal end portion. The snare also includes first, second and third loops each having a proximal end portion and a distal end portion, and a mid-portion therebetween formed by spaced apart first and second sides connected together at the distal end portion of the loop. The mid-portions of each of the loops cross over mid portions of one of the other two loops, and the loops are only connected together at their proximal end portions, where they are gathered together and attached to the distal end portion of the core cable. The loops are movable between an open position and a closed position.

Abstract: A medical device is disclosed which includes a delivery member having at least two lumens extending within. Each lumen may include a rotational element within. Each rotational element may be configured to convert linear motion into rotational motion. The medical device may also include a snare element including a distal snare loop and two proximally extending legs. Each leg of the snare element may be within one of the two lumens. Further, the rotational element in a first lumen may be configured to impart a clock-wise rotation to a first leg of the two proximally extending legs, while the rotational element in a second lumen of the at least two lumens may be configured to impart a counter clock-wise rotation to a second leg of the two proximally extending legs.

Abstract: A tissue removal tool for use with an endoscope. The tool includes a loop formed by a piece of wire. The loop is movable between an open position and a closed position. The shape of the loop is defined in the open position by a proximal portion and a distal portion. The piece of wire may have a cross-sectional height in the proximal portion unequal to a cross-sectional height in the distal portion.

Abstract: A medical device may include a plurality of branch members having moveable distal portions. The medical device also may include a first moveable member movably connected to the distal portion of one of the branch members at a first location along the branch member. The first moveable member may have first and second proximal portions extending from the first location and disposed within one or more lumens of one or more of the other branch members. The moveable distal portions of the plurality of branch members and the first moveable member may form a first snare movable between a collapsed configuration and an expanded configuration.

Abstract: A surgical retrieval apparatus includes a handle including an elongated sleeve extending therefrom that, together cooperate to define a lumen therethrough. A shaft having an end effector assembly disposed at a distal end thereof and a plunger disposed at a proximal end thereof is selectively translatable between a first position and a second position, wherein the end effector assembly extends from the sleeve. An articulation mechanism is configured to articulate the end effector assembly relative to the shaft. A specimen retrieval bag is coupled to the end effector assembly and is deployable to an extended position upon movement of the end effector assembly to the second position.

Abstract: Provided a medical snare in which the expansion direction of a loop is easily rotated in an arbitrary direction in which a removable target has grown, the removable target is easily inserted into the loop so as to allow a surgical procedure to be easily performed to reduce a time required for the surgical procedure and burdens of a patient and a surgeon, and the free rotation of a wheel is prevented to be able to fix the expansion direction of the loop. Accordingly, only the wheel can be easily rotated to switch the expansion direction of the loop without rotating the entire medical snare.

Abstract: A treatment device for endoscope includes a flexible sheath, an operation wire that is advanceably/retreatably inserted into the sheath, a treatment part comprising at least one elastic wires that can enter and exit a tip side inner part of the sheath, and a connecting member that secures to each other a tip of the operation wire and ends of the elastic wires. The connecting member includes a cylindrical body part, and a plurality of walls that extend from one end face of the body part in the direction of the axis of the body unit. A proximal end of the operation wire is secured to the body part, and the plurality of ends of the elastic wires are secured to the wall in the direction of the axis; when viewed from the wall side in the direction of the axis, at least one of the ends of the elastic wires overlaps with the body part. The interval between mutually adjacent walls is narrower than the outer diameter of the elastic wires.

Abstract: A high-frequency treatment tool (1) includes an operating wire (12) having a treatment part (10) including a treatment electrode; a first tube (23) formed from an insulating material, in which the operating wire (12) for enabling the treatment part (10) to protrude and recede is inserted; and a second tube (21) having a passive electrode (22) at a distal end, in which inserted the first tube (23) such as to cover an inner peripheral face of the passive electrode (22) is inserted. An engagement part (25) and an engaged part (22C) that can engage with each other are formed in the first tube (23) and the passive electrode (22), and the engagement of the engagement part (25) with the engaged part (22C) restricts the relative movement of a distal-end part of the first tube (23) to a proximal-end side of the first tube (23) with respect to the passive electrode (22).

Abstract: An endoscopic device includes a longitudinal member, a pair of jaws installed at a distal end of the longitudinal member and configured to be freely opened and closed, a first grasping member supported by a first jaw of the pair of jaws, a second grasping member supported by a second jaw of the pair of jaws, the second body having a wire shape, flexibility, and being curved in a loop shape, a long operating transmission member having a distal end portion connected to the pair of jaws and installed to advance and retreat along a longitudinal axis of the longitudinal member, and an open-close operating portion installed at a proximal end portion of the operating transmission member and configured to be manipulated to open and close the pair of jaws.

Abstract: An endoscope treatment tool includes a treatment portion, a manipulation portion, and a manipulation wire connecting the treatment portion and the manipulation portion, the manipulation portion includes a manipulation portion main body, a shaft, a clutch plate having a through-hole into which the shaft is slidably inserted, a manipulation member slidably attached to the manipulation portion main body, and a force adjustment member compressed in accordance with manipulation of the manipulation member, and the clutch plate is inclined with respect to the shaft in accordance with compression of the force adjustment member, and thereby the manipulation member is fixed to the manipulation portion main body by the clutch plate which is fixed to the shaft so as not to slide with respect to the shaft.

Abstract: A medical device for manipulating a tissue is disclosed. The device includes an elongate shaft having a proximal end, a distal end, and a first lumen between the proximal end and the distal end, which has an opening in communication with the first lumen. The elongate shaft further includes a second lumen or aperture disposed in an external surface of the elongate shaft. The device further includes: a support truss, a snare loop, and an actuation member having a distal end. The actuation member is movably disposed within the first lumen. The support truss is configured to be received within the first lumen, second lumen, or aperture such that a proximal end of the support truss is operably connected to the elongate shaft adjacent a proximal portion of the first lumen, second lumen, or aperture. The snare loop has a first portion connected to a distal end of the support truss and a second portion connected to the distal end of the actuation member.

Abstract: A medical/surgical device for performing tissue resection can include an endoscope with proximal and distal ends, defining working channels, and a snare assembly located in one of the working channels. The working channel may include a bend near the distal end and towards the outward radial wall of the endoscope. The snare assembly may include a snare loop and an actuation element imparted with the pre-formed angular bends and an actuation control handle. The bends of the actuation element and the working channel may be the same. The rotational manipulation of the actuation element may synchronize the pre-formed bend of the actuation element with the bend of the working channel to concentrically (or otherwise) align the deployed snare loop with the endoscope or endoscope attachments.

Abstract: A medical instrument includes a guide (102) having an interlocking structure. A tool (104) is enclosed within the guide and has an interlocking feature configured to engage the interlocking structure of the guide. The tool has a stored position and a deployed position such that in transitioning between the stored position and the deployed position, motion of the tool relative to the guide is controlled in accordance with the interlocking structure.

Abstract: Embodiments of this invention relate to endoscopic and laparoscopic surgical instruments. More specifically, embodiments of this invention relate to an open loop snare device including a means for securely closing the loop. In some embodiments, a snare device comprises a snare wire and a capture mechanism wherein, when the snare wire is advanced, the snare wire extends from a distal portion of the device along an arcuate path curving back toward the capture mechanism such that, after the snare wire is advanced, activation of the capture mechanism captures the snare wire, creating a formed loop around a target tissue. Retraction of at least one of the snare wire and capture mechanism contracts the formed loop, resecting the target tissue.

Abstract: The invention relates to a surgical device (100) designed to be inserted into a stump or a hollow organ (40) of a person or animal in order to prepare a circular anastomosis, wherein the device (100) is designed without a stapling unit for producing a surgical stapled scam, wherein the device (100) has an instrument shaft (120) having a handle section (121, 300) and, at the end of time instrument shaft (120) away from the handle section (121, 300), a head section (130) that is or can be coupled to the instrument shaft (120) by means of a detachable coupling (113), wherein the handle section (121, 300) is designed for a user to hold the device (100), wherein the head section (130) has at least one first molded body (109) and a counter-pressure plate (111) of a surgical circular stapling device (160) connected to the first molded body (109), wherein the surgical device has fu least one first molded body (109) and one second molded body (108) between the handle section and the counter-pressure plate, the second

Abstract: A medical retrieval device used to remove objects such as urinary and biliary calculi from the body comprising a handle assembly with an independent rotational means, a sheath, and an object entrapping assembly. In preferred embodiments, the handle assembly comprises a longitudinally stationary base portion with a handle base and a rotating means and a thumb slide actuation means located between the distal and proximal ends of the handle base portion. Actuation of the thumb slide relative to the handle base causes the object entrapping assembly to be actuated between the open and closed positions. Rotation of the rotating means relative to the handle base causes precise rotation of the object entrapping assembly. The thumb slide actuation means and rotating means are separate and independent of each other, preventing inadvertent adjustment of the degree of actuation during rotation and preventing inadvertent adjustment of rotational position during actuation.

Abstract: A device for retrieval of organic and inorganic matter during a surgical procedure employing a camera and viewer to ascertain a removal target. The device has a catch basket formed of a plurality of radially oriented shaped wires extending an axis with gaps in-between for camera viewing and light transmission. A mouth aperture area is maximized by formation in a single plane and using wires of a shape to form an oval, crescent, or hexagon. A cauterizing snare may be formed using wires forming the mouth, may project from the catch basket, or may be used separate from the catch basket. Shaped memory material forming the wires maintains the shape of the catch basket, mouth, and snare, despite repeated compressions thereof into catheter housed conduits.

Abstract: A kit for surgically removing stones comprising: a double barreled sheath including a first barrel and a second barrel joined side-by-side; a first connector which is engaged at the proximal end of the first barrel; a second connector which is engaged at the proximal end of the second barrel; a first rigid tube interconnecting the first barrel with the first connector with the first connector being releasably engaged to the first rigid tube and the first rigid tube, first barrel and first connector being co-axial; a second rigid tube interconnecting the second barrel with the second connector with the second connector being releasably engaged to the second rigid tube and the second rigid tube, second barrel and second connector being co-axial; and a wire basket retriever adapted for insertion into one of the barrels and being releasably engaged with a connector or an actuation device.

Abstract: An apparatus having a longitudinal shaft. A guide feature is associated with the longitudinal shaft. The guide feature is disposed adjacent to a distal end of the longitudinal shaft. At least one ensnarement feature is associated with the longitudinal shaft. The at least one ensnarement feature is disposed at least partially proximally relative to the guide feature.

Abstract: A multi-wire instrument has a distal functional section, in which a plurality of individual wires form a wire basket, wherein they are combined at a distal end and connected to one another by being joined directly to one another or to a distal terminating body while forming a respective predetermined breaking connection. A shaft section extends between the distal functional section and a proximal end region of the multi-wire instrument. The individual wires extend in one piece from their distal end to the proximal end region of the multi-wire instrument and the shaft section is formed by the individual wires, which are combined there and held together.

Abstract: A retrievable device for treatment of a stenotic lesion in a body vessel is disclosed. The device comprises a reticulation portion including a plurality of struts connected together in a singly staggered configuration distally along a longitudinal axis. The plurality of struts of the reticulation portion is configured to fold along the longitudinal axis defining a collapsed state of the device for retrieval. The device further includes an expandable body distally extending from the reticulation portion along an outer diameter for treatment of the stenotic lesion. The expandable body is configured to expand in the open state and collapsed in the collapsed state of the reticulation portion for retrieval. The device further comprises a retrieval stem extending proximally from the reticulation portion for retrieval of the device in the collapsed state.

Abstract: A rooter includes a rotatable element, an actuator for causing the rotatable element to rotate, and a coupling feature for rotatably coupling an elongate medical instrument to the rotatable element. The rotatable element may be at least partially contained within the interior of a housing or another element that remains substantially stationary as the actuator causes the rotatable element to rotate. The rooter may be used with a variety of elongate medical instruments, such as needles, drill bits, trocars, wires, catheters, tubes, and other elongate instruments that are used to enable or effect medical procedures within the body of a subject. The rooter may be used for a variety of purposes, including, without limitation, the introduction of an elongate medical instrument into the body of a subject or its removal from the subject's body; removing, breaking up, or eliminating obstructions (e.g., blood clots, plaques, etc.) from the body of a subject; and obtaining samples from a subject's body.

Abstract: A medical device may include tubular member having a proximal end, a distal end, and a lumen extending therebetween. The tubular member may include an opening at a distal portion of the tubular member, wherein the opening is in communication with the lumen, wherein a distal end of the opening is disposed proximate of the distal end of the tubular member, and wherein the distal portion of the tubular member is configured to bend in at least one plane. The medical device may further include an actuation member extending at least partially within the tubular member, wherein a distal portion of the actuation member is configured to exit the tubular member at a location proximate the opening, wherein a distal end of the actuation member is coupled to the distal end of the tubular member, and wherein pulling the actuation member proximally is configured to cause the distal portion of tubular member to form a loop with itself.

Abstract: A medical device and a method for manipulating a tissue are disclosed. The medical device includes two or more bars, a snare loop and a constricting element. Each bar includes a proximal end, and one or more distal ends, such that the bars are in close proximity at the proximal end. The snare loop maybe coupled to the distal ends of the bars. The constricting element maybe movably coupled to the bars, such that the constricting element expands the snare loop when positioned at the proximal end of the plurality of bars while the constricting element collapses the snare loop when positioned at the distal end of the plurality of bars, thus, keeping the distal end of the snare loop stationary with respect to the tissue.

Abstract: A medical device for resecting tissue. The medical device includes a catheter shaft having a proximal portion and two or more distal branch portions. The distal branch portions are moveable between a closed position, and an open position. One or more lumens extend between the proximal portion and through each distal branch portion. An actuation element extends through the lumen of each distal branch portion. A snare loop is connected to each actuation element.

Abstract: A medical device may include a housing. The housing may include an outer wall, an inner wall spaced from the outer wall, and a cavity between the outer wall and the inner wall. The cavity may be in fluid communication with a lumen configured to adjust pressure within the cavity. The medical device may also include a cutting tool configured to move from extending around an outer surface of the housing to entering the cavity of the housing.

Abstract: A tissue resection device for resecting tissue from a target site within a patient's body. The device includes an elongate shaft having a proximal end and a distal end. An actuation member extends partially through the shaft, and reciprocates within the shaft between a retracted position and an extended position. Multiple snare wires extend through the actuation member, and emerge outwards from a distal portion of the actuation member. The snare wires cooperate and join to form a snare loop, which engages the tissue intended to be resected. The snare loop is configured to enhance friction while engaging the tissue, to resect the tissue.

Abstract: A medical device may include a housing. The housing may include an outer wall, an inner wall spaced from the outer wall, and a cavity defined by the outer wall and the inner wall. The distal end of the outer wall may be disposed proximally from the distal end of the inner wall. The housing may further define a passageway therethrough. The cavity may be in fluid communication with a port configured to adjust pressure within the cavity.

Abstract: A cutting device includes an elongated shaft that extends between a proximal end and a distal end. A distal arm extends from the distal end of the elongated shaft. The distal arm includes an inner surface defining a cavity and an outer surface defining a blunt tip. At least one proximal arm extends from the distal end of the elongated shaft at a position proximal to the distal arm. The at least one proximal arm has an inner surface defining a cavity including a cutting portion configured to cut tissue.

Abstract: A medical device for resecting tissue. The medical device is slidably disposed within a working channel of an elongate introduction sheath. The medical device includes an elongate shaft having a proximal end, a distal end, and a lumen extending therebetween. The distal end of the elongate shaft may include an opening in communication with the lumen. In addition, the medical device includes a support structure having a slot extending along an inner surface of the support structure in communication with the lumen of the elongate shaft. The medical device further includes a snare loop having a first position disposed within the slot of the support structure, and a second position disposed within the lumen of the elongate shaft. An actuation member is slidably disposed within the lumen of the elongate shaft and is connected to the snare loop.

Abstract: Baskets with multiple portions and multiple deployed configurations allow the capture and release of material within the body.

Abstract: Embodiments of the present invention relate to systems, methods, and apparatus for introducing and/or controlling a snare in a lumen (e.g., a lumen of a catheter tube, a body lumen, etc.). In one example, a snare loading device can reduce the size of a loop on a snare to allow the snare to be inserted into the catheter tube. Furthermore, before and/or after insertion of the snare into the catheter tube, the snare loading device can control the snare, by transferring motion thereto.

Abstract: A filter retrieval system for retrieving a previously implanted medical filter, and methods of using the retrieval system, are disclosed. The filter retrieval system has a flexible shaft, a retrieval element, and a handle with an actuator. The flexible shaft may be catheter-based, and has a proximal and a distal end, and has an opening near its distal end. The handle is affixed to the shaft near the proximal end of the shaft, and the actuator is adapted to manipulate the retrieval element to grasp or hook or otherwise engage a portion of the filter, and then pull the filter in through the opening into a passage or lumen of the catheter shaft. The retrieval system is capable of retrieving a filter in into a proximal and distal space defined by the flexible shaft, though only one space at a time.

Abstract: An attachment configuration for a vascular filter assembly including a self-expanding filter member attached to a catheter body and constrained from expansion in a first configuration by a constraining sheath is presented. The attachment configuration includes an outer tube of material that is overlaid over an end of the filter member and bonded to the catheter body through cutouts disposed through the end of the filter member.

Abstract: An endoscopic-use treatment instrument includes: a wire; an Y-shaped knife formed by a flexible material and is disposed at the distal end of the wire and used for treatment conducted in a body cavity; a flexible sheath having the wire passing therethrough; an operation section provided to the proximal end of the wire and capable of rotating the wire around an axial line; a cylindrical bearing fixed to the distal end of the sheath; a rotative member inserted into the bearing and capable of freely rotating relative to the bearing; and a regulator section provided to the rotative member and regulating the rotation of the treatment member relative to the rotative member around the axial line. The rotation of the Y-shape knife relative to the rotative member around the axial line is regulated when the Y-shape knife makes contact with the regulator section.

Abstract: The devices and methods described herein relate to improved structures for removing obstructions from body lumens and can include a main bundle comprising a group of wires having a first end and a second end; a capturing portion formed by the group of wires, where the group of wires forming the capturing surface comprise a crossing mesh pattern having a plurality of interference points in the crossing mesh pattern, where the plurality of interference points selectively interfere to limit radial expansion of the capturing surface upon axial compression of the capturing surface. Such devices have applicability in through-out the body, including clearing of blockages within the vasculature.