Apparatus and methods for clamping tissue layers and occluding hollow anatomical structures utilize a pair of implants, each having deployable radially extending legs that clamp the layers together. The implants are locked together by a separate pin that also transfixes the tissue layers.

A retainer for a ligating clip cartridge includes a peripheral skirt nested within the cartridge. The retainer includes a planar peripheral top margin surface extending from the skirt. A plurality of spaced rectilinear upwardly arched boundary leaves project from opposite sides of the top margin surface. The distal ends of the boundary leaves include a pair of spaced, downwardly inclined integral distensions. When positioned within a cartridge loaded with clips, the distensions are registered with and spaced above bosses which extend transversely from each clip leg. Should the clips tend to prolapse within the cartridge; the bosses engage a keeper notch formed at the juncture between the upwardly arched boundary leaves and the downwardly inclined distensions to maintain the clips in position suitable for dispensing.

An endoscopic clip device including a clip, a treatment instrument body comprising a sheath, an operation wire, and a distal connection portion, a sleeve accommodated inside the sheath and accommodating the connection portion in distal portion of the wire such that portion of inner diameter of the sleeve is smaller than outer diameter of the locking portion when the connection portion is drawable from the accommodation portion. The sleeve has diameter enlargement portion on distal side of the sleeve and elastically self-openable, a diameter reduction step portion on proximal side of the enlargement portion, and a sleeve body positioned on the proximal side of the enlargement portion from the step portion and having radial rigidity higher than that of the enlargement portion, and the inner diameter of the sleeve body is smaller than the outer diameter of the locking portion when the connection portion is drawable from the accommodation portion.

A delivery system for an interventional device includes an elongate catheter body, a catheter shaft extending within the elongate catheter body and configured to releasably attach to the interventional device, and at least one flexible element attached to a distal portion of the catheter shaft. The at least one flexible element has an expanded configuration in which the at least one flexible element extends beyond an outer circumference of the elongate catheter body and a collapsed configuration in which the at least one flexible element collapses within an inner circumference of the elongate catheter body. The at least one flexible element is configured to act as a tactile stop when pulled proximally against the elongate catheter body and/or to fold over the interventional device to act as a retraction aid.

A ligation clip module including a module housing that is compressible from an uncompressed condition to a compressed condition. The module housing includes a proximal portion, a distal portion, and a lumen extending therethrough. The ligation clip module further includes a pusher slidably disposed in the lumen of the module housing and a ligation clip disposed in the proximal portion of the module housing at a location distal of the pusher.

A surgical implant comprising a receiver member and deployment member for clamping and sealing tissue of variable thickness, a corresponding applicator tool and surgical system for connecting, sealing, fastening and/or attaching tissue to itself, to other tissue and/or to non-tissue structures, and/or sealing the flow of fluid at and/or between structures such as tissue and vessel structures.

A system for treating tissue includes a clip assembly including clip arms movable relative to a channel of a capsule so that the clip arms are movable between a tissue receiving configuration and a tissue clipping configuration. Also, the system includes an applicator releasably coupleable to the clip assembly. The applicator includes a bushing and a control member extending therethrough. The bushing includes deflectable fingers, each of the fingers including an engaging feature at a distal end thereof to engage a corresponding engaging feature of the capsule of the clip assembly and assembled with a pusher element configured to push the fingers to a radially outward position. The pusher element includes a U-shaped portion curving into a channel of the bushing and a longitudinal portion extending distally therefrom. A cam washer is slidable over a length of the control member and positioned distally of the U-shaped portion.

Surgical clip appliers are provided and includes a channel assembly extending distally from a housing; a clip carrier disposed within said channel assembly and defining a channel and a plurality of windows therein; a plurality of clips slidably disposed within said channel of said clip carrier; a wedge plate reciprocally disposed within said channel assembly, said wedge plate being operatively connected to said handles and including a plurality of apertures formed along a length thereof; and a clip follower slidably disposed within said channel of said clip carrier and disposed proximally of said plurality of clips, said clip follower being configured and adapted for selective engagement with said windows of said clip carrier and said apertures of said wedge plate. The clip follower is configured and adapted to urge said plurality of clips, in a distal direction relative to said clip carrier, upon reciprocal movement of said wedge plate.

A system for treating tissue includes an applicator and a clip assembly. The applicator includes a catheter extending longitudinally and a lumen extending therethrough, a control member extending through the lumen of the catheter. The assembly is releasably coupleable to a distal end of the applicator. The assembly includes a pair of clip arms, proximal ends of which are slidably received within a channel of a capsule, a pair of opposing coupling elements extending proximally from the proximal ends of the arms to be fixed over the distal end of the member so that the arms are movable relative to the capsule via a longitudinal motion of the member between a tissue receiving configuration, in which distal ends of the arms are separated from one another, and a tissue clipping configuration, in which distal ends of the arms are moved toward one another.

A surgical instrument, such as an endoscopic or laparoscopic instrument. The surgical instrument may comprise an end effector comprising at least one sensor. The surgical instrument may also comprise an electrically conductive shaft having a distal end connected to the end effector wherein the sensor is electrically insulated from the shaft. The surgical instrument may also comprise a handle connected to a proximate end of the shaft. The handle may comprise a control unit electrically coupled to the shaft such that the shaft radiates signals as an antenna from the control unit to the sensor and receives radiated signals from the sensor. Other components electrically coupled to the shaft may also radiate the signals.