Surgical devices and related methods are disclosed. An example surgical device may include an end effector disposed at a distal end of the shaft, the end effector comprising a head, the head comprising an articulating mechanism, the articulating mechanism being operable to move a first jaw between an open position in which the first jaw and a second jaw are separated and substantially non-parallel and a closed position in which the first jaw and the second jaw are substantially adjacent and substantially parallel, where each of the first jaw and the second jaw comprises a first substantially straight portion proximate the head, a second substantially straight portion, a third substantially straight portion distant from the head, a first curved portion between the first substantially straight portion and the second substantially straight portion, and a second curved portion between the second substantially straight portion and the third substantially straight portion.

An end effector drive mechanism has first and second pulleys and first and second jaws configured as a torque-amplifying tool assemblies. Each pulley jaw pair is configured as kinematic assembly having a compact footprint that can amplify outputs to increase the grip force applied by the jaws. The end effector drive mechanism is within a pulley envelope defined by the first and second pulleys. In certain configurations, the tool assemblies are configured to produce a grip force independent from a push-pull force that is exerted on (or by) the jaws. In certain configurations, the tool assemblies are configured to prevent undesirable reverse rotations and limit the range of travel of the jaws (or pulleys).

A fastener cartridge can comprise a support portion, a tissue thickness compensator positioned relative to the support portion, and a plurality of fasteners positioned within the support portion and/or the tissue thickness compensator which can be utilized to fasten tissue. In use, the fastener cartridge can be positioned in a first jaw of a surgical fastening device, wherein a second jaw, or anvil, can be positioned opposite the first jaw. To deploy the fasteners, a staple-deploying member is advanced through the fastener cartridge to move the fasteners toward the anvil. As the fasteners are deployed, the fasteners can capture at least a portion of the tissue thickness compensator therein along with at least a portion of the tissue being fastened.

A surgical device for clipping tissue is disclosed. The surgical device comprises a housing, a shaft extending from the housing, and a first reload releasably attachable to the shaft. The first reload comprises a first end effector and a first clip magazine including a plurality of first clips. The surgical device further comprises a second reload releasably attachable to the shaft when the first reload is not attached to the shaft. The first reload and the second reload are different sizes. The second reload comprises a second end effector and a second clip magazine including a plurality of second clips.

A force transmission mechanism for a teleoperated surgical instrument includes a drive pulley, a drive cable operably coupled with the drive pulley, a driven pulley operably coupled with the drive cable, and an actuation member operably coupled to the driven pulley. The actuation member is configured to transmit force to actuate an end effector of the surgical instrument. Rotational motion of the driven pulley causes translational movement of the actuation element to actuate the end effector. Methods relate to operating a force transmission mechanism.

Provided is an instrument for surgery and, more specifically, to an instrument for surgery which can be manually operated in order to be used for laparoscopic surgery or various types of surgery.

A surgical device for clipping tissue is disclosed. The surgical device comprises a housing, a shaft extending from the housing, and a first reload releasably attachable to the shaft. The first reload comprises a first end effector and a first clip magazine including a plurality of first clips. The surgical device further comprises a second reload releasably attachable to the shaft when the first reload is not attached to the shaft. The first reload and the second reload are different sizes. The second reload comprises a second end effector and a second clip magazine including a plurality of second clips.

A surgical device for clipping tissue is disclosed. The surgical device comprises a housing comprising a motor configured to output rotary motions, a shaft, and a clip applier head. The clip applier head comprises a clip magazine, an end effector, a jaw closure cam, and a clip advancing member. The clip magazine comprises a plurality of clips. The end effector comprises a first jaw and a second jaw movable relative to each other between an unclamped position and a clamped position. The jaw closure cam is configured to move the first jaw and the second jaw toward the clamped position. The clip advancing member is operably attachable to the jaw closure cam. The clip advancing member is configured to move a clip from the clip magazine into a firing position. The jaw closure cam and the clip advancing member are configured to move in opposite directions at the same time.

A surgical device and associated methods such as an end effector are disclosed. The end effector can include: a first component forming a body of the end effector, wherein the first component is formed of a first electrically non-conductive material; and a second component coupled to the first component at a joint, wherein the second component is formed of a second material or is formed of the first material but is processed differently from the first material, wherein the second component connects the first component to the surgical device and has one or more features that are configured to facilitate articulating movement of the first component.

A treatment instrument used together with an endoscope includes a distal end grasping portion. The distal end grasping portion includes a distal end movable member capable of moving forward and backward along a longitudinal axis of the distal end grasping portion, and a distal end fixation member including a bending portion provided on a distal end side along the longitudinal axis with respect to a tilt portion of the distal end movable member. The bending portion of the distal end fixation member and the tilt portion of the distal end movable member constitute a grasping portion.