US 12,303,129 B2
End tool of surgical instrument, and surgical instrument comprising same
Jaeyeong Lee, Seongnam-si (KR); Junghwan Kim, Seongnam-si (KR); Jung Joo Lee, Seongnam-si (KR); Heejin Kim, Seongnam-si (KR); and Dongkyu Jang, Seongnam-si (KR)
Assigned to LIVSMED INC., Seongnam-si (KR)
Filed by LIVSMED INC., Seongnam-si (KR)
Filed on Mar. 1, 2024, as Appl. No. 18/593,392.
Application 18/593,392 is a continuation of application No. PCT/KR2022/013250, filed on Sep. 5, 2022.
Claims priority of application No. 10-2021-0117997 (KR), filed on Sep. 3, 2021.
Prior Publication US 2024/0285275 A1, Aug. 29, 2024
Int. Cl. A61B 17/072 (2006.01); A61B 34/30 (2016.01)
CPC A61B 17/07207 (2013.01) [A61B 2034/305 (2016.02)] 23 Claims
OG exemplary drawing
 
1. A surgical instrument comprising:
an end tool including:
a first jaw;
a second jaw formed to face the first jaw;
a first jaw pulley coupled to the first jaw and formed to be rotatable around a first shaft;
a second jaw pulley coupled to the second jaw, formed to be rotatable around a shaft 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 and the second jaw pulley; and
a cartridge including:
a reciprocating member that is connected to the staple drive assembly, and linearly moved when the staple pulley is rotationally moved; and
an operation member including a contact member formed to be in contact with the reciprocating member, and configured to move in one direction together with the reciprocating member when the reciprocating member is moved in the one direction,
wherein, when the reciprocating member is moved toward a distal end of the cartridge, a relative movement between the operation member and the reciprocating member is restricted by the contact member, so that the reciprocating member and the operation member are moved together, and
when the reciprocating member is moved toward a proximal end of the cartridge, the relative movement between the operation member and the reciprocating member is possible, so that only the reciprocating member is moved.