US 11,737,809 B2
Surgical instrument
Ojiro Kitamura, Tokyo (JP)
Assigned to OLYMPUS CORPORATION, Tokyo (JP)
Filed by Olympus Corporation, Hachioji (JP)
Filed on Dec. 17, 2019, as Appl. No. 16/717,412.
Application 16/717,412 is a continuation of application No. PCT/JP2017/023595, filed on Jun. 27, 2017.
Prior Publication US 2020/0121377 A1, Apr. 23, 2020
Int. Cl. A61B 18/14 (2006.01); A61B 18/08 (2006.01); A61B 18/00 (2006.01); A61B 18/12 (2006.01)
CPC A61B 18/085 (2013.01) [A61B 18/1445 (2013.01); A61B 2018/0063 (2013.01); A61B 2018/00345 (2013.01); A61B 2018/00589 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00994 (2013.01); A61B 2018/126 (2013.01); A61B 2018/1226 (2013.01); A61B 2018/1266 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical instrument comprising:
a sheath having respective opposed proximal and distal ends extending along a longitudinal axis;
a pair of grasps disposed on a distal-end portion of the sheath, the pair of grasps being configured to grip a treatment target therebetween;
a drive shaft coupled to at least one of the pair of grasps and configured to open or to close the pair of grasps relative to one another by being moved along the longitudinal axis relative to the sheath;
electric elements configured to apply treatment energy to the treatment target using electric energy;
a first button configured to receive an operation input;
a power supply device configured to supply the electric energy to the electric elements in a first supply state in response to the operation input entered in the first button;
a first member configured to produce a force to open or close the pair of grasps relative to one another and to apply the force to the drive shaft; and
a second member having a first end and a second end, and being configured to apply a force to the drive shaft in response to the operation input entered in the first button,
wherein:
in the first supply state, the second end of the second member contacts the first button, and
in a second supply state in which an operation input has not been entered in the first button, the second end of the second member is spaced apart from the first button.