An end-effector and a surgical instrument including the end-effector are disclosed. The end-effector includes a clamp arm and an ultrasonic blade configured to acoustically couple to an ultrasonic transducer and to electrically couple to a pole of an electrical generator. The clamp arm incudes a clamp jaw, a cantilever electrode, and a clamp arm. The cantilever electrode is biased in a direction toward the clamp jaw and the clamp arm includes a retainer to oppose a biasing force and maintain the cantilever electrode in a substantially flat configuration relative to the ultrasonic blade. A skirt may be disposed around the clamp jaw. The clamp arm pad may include multiple support elements arranged in multiple rows to support the cantilever electrode.

A surgical instrument comprises a shaft, wherein a deflectable articulation section is formed at the shaft, a proximal handling portion at a proximal end of the shaft, a distal effector at a distal end of the shaft, and a deflection mechanism for controlling a bending state of the articulation section. The deflection mechanism comprises a first pull element for a deflection movement and a second pull element for a return movement. The first pull element and the second pull element are jointly pretensioned during the movement of the articulation section. An interface is provided where the instrument is demountable into a distal shaft assembly and a proximal handle piece, wherein the effector is controlled via an actuation mechanism that passes through the interface in a mounted state. The actuation mechanism comprises a push piece having a distal end that is coupled with the effector and a proximal end that is actuable by a pushing movement.

A surgical instrument for at least partial occlusion of the uterus blood vessels comprising two opposing jaws with scissor-type handles and a latching mechanism. Each jaw has a straight member 1 and a straight member 2 connected with an angle 30-45 degrees. Each said member 1 has a tubular cover. Each member 2 is integrated with the scissor-type handle. Each jaw has an inner side and an outer side. The jaws are made movable relative to each other in order to at least partially occlude the uterus blood vessels by the opposite sides of the covers on the inner sides of the members 1. The latching mechanism is made to retain the jaws in the working position over a needed period of time and release the jaws when the need for occlusion is over. Each cover has an inner cavity open from one end for receiving and retaining the member 1 of said jaw. The thickness of each said cover on the inner side of the member 1 is 8-12 mm, the width of said cover is 10-30 mm, the length of said cover is 50-60 mm, and said cover is made of soft plastic, silicon, fabric, gauze or non woven material.

End effectors with closing mechanisms, and related tools and methods may be particularly beneficial when used for minimally invasive surgery. An example surgical tool comprises a first and second jaw movable between a closed grasped or clamped configuration and an open configuration. The tool further comprises a soft grip mode for grasping the tissue at a first force during which a separation parameter between the jaws is measured, and a therapeutic clamping mode in which the jaws clamp on the body tissue at a force greater than the grasping force. The methods comprise grasping the body tissue between jaw members, measuring the separation parameter between jaws, indicating on a user interface the separation parameter for comparison to a desired separation parameter, and then releasing the body tissue for repositioning or therapeutically clamping the body tissue in response to the separation parameter indication.

Methods and apparatus for end effector control and calibration are described. The method may include detecting a signal in response to movement of a first tube relative to a second tube, the first tube driving movement of a clamp arm of the end effector. The method may further include determining a clamp arm position of the end effector relative to a ultrasonic blade of the end effector based on the signal. The method may also include adjusting a power output to the ultrasonic blade of the end effector based on the clamp arm position.

An assembly allowing retraction of soft tissue away from a reference plane; the assembly including at least one retracting element each having a distal end with a formation allowing anchorage of the at least one retracting element. The assembly also includes a proximal end of the at least one retracting element capable of movement through at least one degree of freedom relative to the anchorage.

A gouger grasper device including a handle at a proximal end of the device, the handle having a base and a trigger movably connected to the base, a chisel at a distal end of the device, a jaw at a distal end of the device and movable relative to the chisel, and a ratcheting assembly for moving the jaw relative to the chisel between an open position and a clamping position in response to movement of the trigger relative to the base.

A vascular catheter wire clamp is provided. The vascular catheter clamp includes an elastic body, a clamping shaft, and a clamping shaft receiving passageway. The elastic body includes a first arm having a first retention surface, a second arm having a second retention surface, and a bent section connecting the first arm and the second arm such that first arm away from the bent section and parallel with the second arm. The clamping shaft extends inward from outward facing surface of the first arm and includes a retention member positioned along an end thereof. The clamping shaft receiving passageway is positioned through the second arm and corresponds with the clamping shaft and the retention member.

Methods and apparatus for end effector control and calibration are described. The method may include detecting a signal in response to movement of a first tube relative to a second tube, the first tube driving movement of a clamp arm of the end effector. The method may further include determining a clamp arm position of the end effector relative to a ultrasonic blade of the end effector based on the signal. The method may also include adjusting a power output to the ultrasonic blade of the end effector based on the clamp arm position.

A three-arm clip is provided, which relates to the technical field of medical devices. By providing self-locking slots and realizing self-locking between movable arms and a fixed portion in cooperation with sliding slot pins, a snap-fitting structure such as a limiting elastic sheet may not be added to the movable arms, so that the three-arm clip has a reduced outer diameter, and may pass through an endoscope with a small working channel.