An endoscopic clip apparatus includes a clip sleeve defining an interior passage along a longitudinal axis and having a distal end with a plurality of openings defined in the distal end. A clip including a plurality of arms is disposed in the clip sleeve, and each arm includes a distal tip extending from the clip sleeve through one of the plurality of openings. Each arm includes a convex curved section oriented away from the longitudinal axis. The clip sleeve and clip are axially moveable relative to each other such that when the clip sleeve travels over the convex curved section of each arm toward the distal tip of each arm, each arm is constrained by the clip sleeve and each distal tip advances toward the longitudinal axis to grasp tissue.

Various embodiments are directed to a powered surgical instrument for cutting and fastening tissue. The instrument may comprise an end effector comprising a first jaw member and a second jaw member. The second jaw member may be coupled to move relative to the first jaw member from an open position, where the jaw members are apart from one another, to a closed position. The end effector may also comprise a firing bar positioned to fire by translating within the end effector when the first and second jaw members are in the closed position. Additionally, the surgical instrument may comprise a drive device, a clamping trigger and a control circuit. The drive device may be mechanically coupled to the firing bar. The clamping trigger may be mechanically coupled to the end effector such that actuation of the clamping trigger causes the second jaw member to pivot towards the first jaw member. The control circuit may comprise a firing switch, a clamp switch, a latching device and an end-of-stroke sensor. The firing switch may be configured to be in electrical communication with a power supply for powering the drive device and in electrical communication with the drive device. The clamp switch may be in mechanical communication with the clamping trigger. The latching device may be in electrical communication with the clamp switch, the power supply and the drive device. The end-of-stroke switch may be in electrical communication with the latching device. Additionally, the firing switch may be electrically connected to, upon actuation, connect the power supply to the drive device via a first connection comprising the latching device and the firing switch. Further, the end-of-stroke switch may be electrically connected to, upon sensing an end of a stroke of the firing bar, cause a change in a state of the latching device to break the first connection between the power supply and the drive device.

Various embodiments are directed to a powered surgical instrument for cutting and fastening tissue. The instrument may comprise an end effector comprising a first jaw member and a second jaw member. The second jaw member may be coupled to move relative to the first jaw member from an open position, where the jaw members are apart from one another, to a closed position. The end effector may also comprise a firing bar positioned to fire by translating within the end effector when the first and second jaw members are in the closed position. Additionally, the surgical instrument may comprise a drive device, a clamping trigger and a control circuit. The drive device may be mechanically coupled to the firing bar. The clamping trigger may be mechanically coupled to the end effector such that actuation of the clamping trigger causes the second jaw member to pivot towards the first jaw member. The control circuit may comprise a firing switch, a clamp switch, a latching device and an end-of-stroke sensor. The firing switch may be configured to be in electrical communication with a power supply for powering the drive device and in electrical communication with the drive device. The clamp switch may be in mechanical communication with the clamping trigger. The latching device may be in electrical communication with the clamp switch, the power supply and the drive device. The end-of-stroke switch may be in electrical communication with the latching device. Additionally, the firing switch may be electrically connected to, upon actuation, connect the power supply to the drive device via a first connection comprising the latching device and the firing switch. Further, the end-of-stroke switch may be electrically connected to, upon sensing an end of a stroke of the firing bar, cause a change in a state of the latching device to break the first connection between the power supply and the drive device.

A surgical instrument for use with a robotic system that has a control unit and a shaft portion that includes an electrically conductive elongated member that is attached to a portion of the robotic system. The elongated member is configured to transmit control motions from the robotic system to an end effector.

Various exemplary methods, systems, and devices for initializing a surgical tool are provided. In general, a surgical tool can include an end effector, an elongate shaft, and a wrist that couples the end effector to a distal end of the shaft. The wrist can be configured to facilitate movement of the end effector relative to the shaft. The surgical tool can include multiple flexible members configured to move, either individually or as a group including any plural number of the flexible members, to cause the movement of the end effector relative to the shaft by pivoting at the wrist. The movement of the end effector can include movement between an unarticulated position and an articulated position. The surgical tool can also include one or more homing members configured to be selectively actuated to force the end effector into the unarticulated position.

A dispensing device configured to operate with an adhesive backed mesh and backing film for tissue bonding is disclosed. The dispensing device provides for low-friction, low force pay-out of a desired length of an adhesive backed mesh to a wound site. The device prevents or eliminates distortion of the mesh prior to application to the wound site, and includes means for reducing or eliminating binding during use. The dispensing device is configured to operate in a “forward” mode (substrate to which mesh is applied passes beneath applicator after mesh is applied) to provide essentially an unobstructed view of the wound site during use.

A dispensing device configured to operate with an adhesive backed mesh and backing film for tissue bonding is disclosed. The dispensing device provides for low-friction, low force pay-out of a desired length of an adhesive backed mesh to a wound site. The device prevents or eliminates distortion of the mesh prior to application to the wound site, and includes means for reducing or eliminating binding during use. The dispensing device is configured to operate in a “forward” mode (substrate to which mesh is applied passes beneath applicator after mesh is applied) to provide essentially an unobstructed view of the wound site during use.

A detachable motor-powered surgical instrument. The instrument may include a housing that includes at least one engagement member for removably attaching the housing to an actuator arrangement. A motor is supported within the housing for supplying actuation motions to various portions of a surgical end effector coupled to the housing. The housing may include a contact arrangement that is configured to permit power to be supplied to the motor only when the housing is operably attached to the actuator arrangement.

A surgical instrument for use with a robotic system that has a control unit and a shaft portion that includes an electrically conductive elongated member that is attached to a portion of the robotic system. The elongated member is configured to transmit control motions from the robotic system to an end effector.

A reposable surgical clip applier (10) is provided and includes a handle assembly (100), an endoscopic assembly (200) selectively connectable to a housing (102) of the handle assembly (100), and a cartridge assembly (300) selectively loadable in and connectable to the endoscopic assembly (200).