An endoscopic instrument includes a shank (2) with an instrument head (9) arranged at the distal shank end (1) and includes a tool with two jaw parts (11, 12). The jaw parts (11, 12) are pivotable relative to one another and can be controlled from the proximal instrument end via a pull elements (5-8) led in the shank (2). At least one jaw part (11, 12) includes two curved disks (36, 37), on which the pull elements (5-8) engages in each case. Two curved disks (36, 37) of a different radial size are provided for each jaw part (11, 12). The radially larger curved disk is arranged closer to the longitudinal middle axis (14) of the tool than the radially smaller curved disk.

The present invention relates to an endoscope cap with a holding and withdrawal device for a tissue clip (4) that can be placed onto a spreading sleeve (3) of the endoscope cap (1). The endoscope cap comprises an end groove (7) that opens at the front edge of the spreading sleeve (3) and that slits open the cap wall on both sides, and a withdrawal thread or web (11) that radially traverses the end groove (7) in a forward axial cap section and that is introduced or can be introduced slideably into an endoscope channel for actuation thereof at a radial inside of the endoscope cap (1).

Jaw assemblies for use in medical devices and systems to enable the performance of multiple modes of dissection using a single jaw assembly are provided. The jaw assembly can include a variety of features to enable this versatility. For example, the jaws can be designed to have particular curvatures that are conducive to performing particular dissection steps. Further, the jaws can have different thicknesses and widths across a length of one or more jaws to also enable particular dissection steps to be more easily performed. Still further, ridges can be formed on both inner and outer surfaces of the jaws to provide additional dissection capabilities. In some embodiments, the jaw assemblies include more than two jaws, with the timing and rate of the jaws deployment being varied for at least two of the jaws. Additional systems, devices, and methods are also provided.

A suturing device including an outer bendable body and an inner bendable needle with a freely bendable angle includes a longitudinally extending outer hollow body having a point and a hollow passage and an inner needle portion or part disposed therein. The outer hollow body is constructed and dimensioned to receive a sized suture needle within the hollow passage with slightly close tolerances welded at its base to a point along the hollow body of the outer part and wherein the outer body includes a lower relatively stiff bendable material and an upper portion of relatively malleable material adjacent to and fixed to the lower portion. Further, the outer hollow body is more malleable as it becomes closer to the point.

Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.

An end effector of a surgical tool includes a first jaw and a second jaw rotated by a driving pulley. A first driven pulley is attached to the first jaw and a second driven pulley is attached to the second jaw. A first end portion of a first cable is connected to a first radial side of the first driven pulley, a second end portion of the first cable is connected to a second radial side of the second driven pulley, and an intermediate portion of the first cable is connected to the driving pulley. A first end portion of a second cable is connected to a first radial side of the second driven pulley, a second end portion of the second cable is connected to a second radial side of the first driven pulley, and an intermediate portion of the second cable is connected to the driving pulley.

An end effector of a surgical tool includes a first jaw and a second jaw rotated by a driving pulley. A first driven pulley is attached to the first jaw and a second driven pulley is attached to the second jaw. A first end portion of a first cable is connected to a first radial side of the first driven pulley, a second end portion of the first cable is connected to a second radial side of the second driven pulley, and an intermediate portion of the first cable is connected to the driving pulley. A first end portion of a second cable is connected to a first radial side of the second driven pulley, a second end portion of the second cable is connected to a second radial side of the first driven pulley, and an intermediate portion of the second cable is connected to the driving pulley.

A surgical tool having an open-close end effector is to be provided. The surgical tool includes: a shaft; a wrist that is connected to the shaft rotatably about a first axis; a first jaw member and a second jaw member, each of which is supported rotatably about a second axis; and an elastic member that applies a repulsive force between the first jaw member and the second jaw member. The surgical tool further includes: a first jaw capstan provided for the first jaw member; a first cable that pulls the first jaw member; a second jaw capstan provided for the second jaw member; and a second cable that pulls the second jaw member.

Provided is a surgical instrument. The surgical instrument includes an end tool configured to rotate in at least one direction, and a manipulation part configured to control a motion of the end tool, wherein the end tool includes a pair of jaws including a first jaw and a second jaw, a working member configured to move in a lengthwise direction of the pair of jaws, a moving member formed to extend to have a length corresponding to a movement direction of the working member, and configured to transmit, to the working member, power for moving the working member, while linearly moving in a lengthwise direction, and a clutch assembly arranged in the working member and configured to allow or block transmission of power from the moving member to the working member.

According to the present disclosure, provided is a surgical instrument in which an actual motion of bending an end tool or performing a surgical treatment intuitively matches a motion of a manipulation portion corresponding thereto. In detail, to this end, provided are an end tool having various degrees of freedom, a manipulation portion having a structure to enable intuitive manipulation of a motion of the end tool, and a driving force transmission portion for transmitting a driving force of the manipulation portion to the end tool so that the end tool operates as manipulated by the manipulation portion.