END TOOL OF SURGICAL INSTRUMENT, CARTRIDGE, SURGICAL INSTRUMENT, AND METHOD FOR DRIVING SURGICAL INSTRUMENT

Abstract: provided is a surgical instrument including an end tool that includes a jaw having a first jaw and a second jaw formed to face the first jaw, a first jaw pulley coupled to the jaw and formed to be rotatable around a first shaft, an opposing pulley formed to be rotatable around a shaft substantially the same as or parallel to the first shaft and formed to be spaced apart from the first jaw pulley by a certain extent, and a staple drive assembly including one or more staple pulleys at least partially formed between the first jaw pulley or the opposing pulley, a cartridge that includes a reciprocating assembly connected to the staple drive assembly and configured to move linearly in response to a rotational movement of the one or more staple pulleys, and an operation member that may be in contact with the reciprocating assembly and formed to move in one direction by the reciprocating assembly when the reciprocating assembly may move in the one direction, and a retraction wire connected to the operation member and formed to pull the operation member toward a proximal end of the jaw.

Inventor(s): Jaeyeong LEE, Jung Joo LEE, Heejin KIM, Dongkyu JANG

CPC Classification: A61B17/07207 ({the staples being applied sequentially})

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