A61B2017/2845

SURGICAL INSTRUMENT
20210322087 · 2021-10-21 · ·

An operation device for operating a tool of a surgical instrument. The operation device has an operation element that is pivotably supported between an initial position and a working position. The operation element is movably coupled with the tool by means of a coupling device comprising a coupling link or consisting of a coupling link. The coupling link is elastically deformable and effectuates a resetting torque due to the elastic deformation in case the operation element is deflected out of the initial position, wherein the resetting torque urges the operation element back in the initial position.

Nested forceps subassemblies and methods of assembly
11147576 · 2021-10-19 · ·

Methods of assembling a medical device including pivotably connecting a coupling link to a first lever. The coupling link including a main body and a tab extending away from the main body. The first lever having a first pivot and a boss. The method further including nesting the first lever and the coupling link with a second lever such that a recess in the second lever is supported by the boss, and such that an inner surface of the second lever is supported by the coupling link to provide a portion of the medical device in a sub-assembled state.

IMPLANT PLACEMENT AND REMOVAL SYSTEMS

Devices, methods, and systems are provided for placing an implant into a patient and removing it therefrom.

Surgical instrument with removable clamp arm assembly

A surgical instrument has a first modular assembly and a second modular assembly. The first modular assembly has a body, an ultrasonic waveguide, an ultrasonic blade connected to a distal end of the ultrasonic waveguide, and a coupling member that movably couples with the body. The second modular assembly has a clamp arm assembly with a first pivot coupling, a clamp pad assembly with a second pivot coupling, and a distal outer sheath that selectively couples to the body of the first modular assembly via the coupling member. The distal outer sheath has an interior surface that houses a portion of the ultrasonic waveguide, and this interior surface also houses the first pivot coupling and the second pivot coupling.

Surgical instrument with selectively actuated gap-setting features for end effector

A surgical instrument, has an end effector that includes an ultrasonic blade, and a clamp arm that moves relative to the ultrasonic blade from an opened position toward an intermediate position and a closed position. The clamp arm is offset from the ultrasonic blade to define a predetermined gap in the intermediate position between the opened position and the closed position. A clamp arm actuator connects to the clamp arm and moves from an opened configuration to a closed configuration to direct the clamp arm from the opened position toward the intermediate position and the closed position. A spacer connects with the clamp arm to inhibit movement of the clamp arm from the intermediate position toward the closed position for maintaining the predetermined gap between the clamp arm and the ultrasonic blade.

Surgical instruments comprising an articulation drive that provides for high articulation angles

A surgical instrument is disclosed comprising a shaft, an end effector, and an articulation joint rotatably connecting the end effector to the shaft. The surgical instrument further comprises an articulation drive system configured to permit high degrees of articulation.

Surgical clip applier comprising adaptive control in response to a strain gauge circuit

A surgical clip applier comprising an electric motor system is disclosed. The electric motor system is configured to drive a clip firing system of the surgical clip applier. The surgical clip applier further comprises a control system configured to control the electric motor system. The control system is configured to monitor a strain gauge circuit to assess the crimping force experienced by the clip firing system. In at least one instance, one or more strain gauges are mounted to a drive shaft and/or jaw of the clip firing system. The control system modifies the operation of the surgical clip applier when the voltage of the strain gauge circuit exceeds and/or falls below a threshold. In at least one instance, the control system modulates the width, or duration, of voltage pulses applied to the electric motor system to control the speed of the electric motor system.

Conductive Instrument

Disclosed is an instrument assembly for a selected procedure. The procedure may include a dissection and neural monitoring. The instrument may be insulated to allow for a selected and precise electrical conductive path.

Forceps with intentionally misaligned pin
11129632 · 2021-09-28 · ·

A forceps having at least a first jaw with a longitudinal axis is disclosed. The first jaw can include a body portion, a first flange, a second flange and a cam pin. The first flange can define a first cam slot with a longitudinal extent along the longitudinal axis. The second flange can be spaced from the first flange a distance transverse to the longitudinal axis of the first jaw and can have a second cam slot. The cam pin, with a longitudinal axis, can be moveably secured within the first cam slot and the second cam slot. A diameter of the cam pin can be less than a width between a first longitudinal edge that defines a first side of each of the first cam slot and the second cam slot and a second longitudinal edge that defines a second opposing side of each of the first cam slot and the second cam slot so that the cam pin is moveably received by both the first cam slot and the second cam slot. With the first jaw pivoted to at least a first position, the cam pin and first flange can be configured such that the first longitudinal edge is contacted by the cam pin but the second longitudinal edge is spaced from the cam pin. The cam pin and second flange can be configured such that the first longitudinal edge is spaced from the cam pin but the second longitudinal edge is contacted by the cam pin.

Surgical instrument with spot coagulation control and algorithm

A surgical instrument includes an end effector that has an ultrasonic blade and a clamp arm that is movable relative to the ultrasonic blade from an opened position toward a closed position. The ultrasonic blade and the clamp arm are able to receive tissue in the opened position, and the clamp arm is able to clamp tissue against the ultrasonic blade in the closed position. There is a first electrode connected with the clamp arm, and a second electrode associated with the ultrasonic blade. The electrodes are able to apply bipolar radiofrequency (RF) energy to tissue captured in the end effector. The instrument further has a first button for activating the ultrasonic blade to provide a cutting and sealing mode at the end effector. There is also a second button for activating the electrodes to provide a spot coagulation mode at the end effector.