A surgical instrument includes a body assembly, a shaft assembly extending distally from the body assembly along a shaft axis, and an end effector at a distal end of the shaft assembly. The shaft assembly includes an outer tube configured to rotate relative to the body assembly about the shaft axis. The surgical instrument further includes a slip ring assembly configured to enable electrical communication between the shaft assembly and the body assembly while permitting relative rotation therebetween. The slip ring assembly includes a first electrical contact supported by the outer tube, and a second electrical contact electrically coupled with the first electrical contact and positioned radially outward of the outer tube. The first electrical contact is configured to rotate with the outer tube about the shaft axis relative to the second electrical contact while the first and second electrical contacts remain electrically coupled.

Provided is a locking apparatus, and more particularly, to a locking apparatus with improved locking performance as a locking unit is stuck between different members capable of moving relative to each other and in which locking is released as an unlocking unit pushes the locking unit.

A surgical instrument for treating tissue includes an articulating elongated shaft (14), a drive shaft (28) extending through the elongated shaft and configured to rotate about a longitudinal axis defined by the drive shaft, and an end effector assembly (100) coupled to a distal end portion of the elongated shaft. The end effector assembly includes a jaw member (110) and a blade member (112) configured to rotate in response to a rotation of the drive shaft to treat tissue disposed between the jaw member and the blade member.

A surgical instrument is connectable to a bone anchor insertion device having a drive shaft that defines a coaxial channel for receiving a needle therethrough. The instrument includes a handle portion configured to be coupled to the drive shaft in a rotationally fixed manner to transmit torque to the drive shaft, a needle holder configured to hold a needle and movable axially relative to the handle portion, an actuator rotatable relative to the handle portion, and a transmission member connectable to the needle holder and movable axially relative to the actuator and comprising a first advancement surface engageable with a second advancement surface of the handle portion to convert rotational movement of the actuator into axial movement of the needle holder relative to the handle portion for axially advancing and retracting a needle held by the needle holder relative to the handle portion.

In an energy control device, a processor detects, based on a detection result of an electric characteristic value in relation to an electric energy which is output from an energy output source to an ultrasonic transducer, a gradual decrease start time at which the electric characteristic value starts a gradual decrease after a gradual increase. The processor executes, based on a fact that a time rate of change of the electric characteristic value become greater than a predetermined threshold after the gradual decrease start time, at least one of causing the energy output source to stop or reduce the output of the electric energy to the ultrasonic transducer, and notifying that the time rate of change become greater than the predetermined threshold.

Disclosed is a surgical instrument having an interlock mechanism, and the surgical instrument includes a handle portion having a handle housing; an elongated body, defining a longitudinal axis of the instrument; an end effector, arranged on distal portion of the elongated body for operating tissues; a rotatable sleeve, circumferentially fixed with proximal portion of the elongated body and provided with a plurality of teeth; a rotatable knob, operatively to be reciprocated along the longitudinal axis; and an articulation gear assembly including an annular gear and a planet gear assembly.

A surgical instrument that includes a shaft assembly that defines a shaft axis and includes a proximal articulation joint that defines a first articulation axis that is transverse to the shaft axis and a distal articulation joint that defines a second articulation axis that is transverse to the shaft axis and the first articulation axis. The instrument further includes an anvil that is non-removably attached to the shaft assembly and a channel that is removably attachable to the shaft assembly and configured to operably support a surgical staple cartridge.

A surgical instrument comprising a handle, an elongate shaft, an end effector, an articulation joint, an articulation knob, an articulation member, and an articulation lock is disclosed. The end effector is rotatably coupled to the elongate shaft by the articulation joint. The articulation knob is rotatable between an un-rotated position and rotated positions. The articulation lock comprises a lock member configured to move between a locked position where the lock member is engaged with a detent of the end effector and an unlocked position where the lock member is disengaged from the end effector. The lock member is movable between the locked position and the unlocked position by the articulation knob. The articulation member is moved from a proximal position toward a distal position to articulate the end effector when the articulation knob is moved from the un-rotated position toward a rotated position.

A treatment tool includes a first grasper and a second grasper. The first grasper includes a treatment portion that includes a treatment surface and an opposing surface, and a holder portion that is mounted on the opposing surface. The holder portion is formed of an elastically deformable material, and includes a first region having a first contact surface, a second region having a second contact surface, and a connection region that is arranged between the first contact surface and the second contact surface and that includes a concave portion. The holder portion is mounted on the opposing surface in an elastically deformed state such that the first contact surface and the second contact surface are in contact with the opposing surface and such that a depth of the concave portion is smaller than a depth of the concave portion is a non-elastically deformed state.

An endoscopic instrument containing a retractable tool at its end that is articulated by engaging an actuator that moves pull wires to angularly move the tip of the instrument along a plane for conducting a procedure at a target site. The tool of instrument is linearly move from an extension position to a retracted position by another actuator. The instrument provide rotational control of the tool and instrument tip portion with a rotational actuator for rotating housings that carry both pull wires and a conducting wire connected to the tool.