US 12,458,382 B2
End tool of surgical instrument, and electrocauterization surgical instrument comprising same
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 Oct. 17, 2024, as Appl. No. 18/918,597.
Application 18/918,597 is a continuation of application No. 18/413,760, filed on Jan. 16, 2024, granted, now 12,150,663.
Application 18/413,760 is a continuation of application No. PCT/KR2022/010390, filed on Jul. 15, 2022.
Claims priority of application No. 10-2021-0093831 (KR), filed on Jul. 16, 2021; and application No. 10-2021-0173270 (KR), filed on Dec. 6, 2021.
Prior Publication US 2025/0040951 A1, Feb. 6, 2025
Int. Cl. A61B 17/285 (2006.01); A61B 17/28 (2006.01); A61B 17/29 (2006.01); A61B 18/14 (2006.01)
CPC A61B 17/285 (2013.01) [A61B 17/2812 (2013.01); A61B 17/29 (2013.01); A61B 18/1442 (2013.01)] 17 Claims
OG exemplary drawing
 
17. An end tool of a surgical instrument, the end tool comprising:
a first jaw and a second jaw configured to be rotatable independently from each other;
a first jaw pulley connected to the first jaw and configured to be rotatable about a first rotation shaft;
a second jaw pulley connected to the second jaw and configured to be rotatable about the first rotation shaft or about a shaft that is parallel to the first rotation shaft;
an end tool hub having one end through which the first rotation shaft is inserted and another end through which a third rotation shaft different from the first rotation shaft is inserted, the end tool hub accommodating at least a part of the first jaw pulley and the second jaw pulley;
a blade configured to be movable between a proximal end and a distal end of the first jaw or the second jaw, at least a part of the blade accommodated in the first jaw or the second jaw;
a guide tube extending toward the blade through the end tool hub and formed to be bendable to a predetermined degree, the guide tube configured to accommodate at least a part of a blade wire therein and accommodate only the blade wire therein; and
the blade wire having one end connected to the blade configured to transmit a driving force required to move the blade to the blade, the at least a part of the blade wire disposed in the guide tube,
wherein at least a part of the guide tube is disposed between the first jaw pulley and the second jaw pulley.