US 12,185,918 B2
Operation apparatus having tension compensating mechanism of wire for steering end effector
Keri Kim, Seoul (KR); Jeongryul Kim, Seoul (KR); Seong Il Kwon, Seoul (KR); and Yonghwan Moon, Seoul (KR)
Assigned to KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed by KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed on Sep. 17, 2021, as Appl. No. 17/477,535.
Claims priority of application No. 10-2021-0021775 (KR), filed on Feb. 18, 2021.
Prior Publication US 2022/0257091 A1, Aug. 18, 2022
Int. Cl. A61B 1/005 (2006.01); A61B 17/00 (2006.01); A61B 34/00 (2016.01); A61B 17/29 (2006.01)
CPC A61B 1/0057 (2013.01) [A61B 1/0055 (2013.01); A61B 2017/00314 (2013.01); A61B 2017/00327 (2013.01); A61B 17/29 (2013.01); A61B 2034/715 (2016.02)] 16 Claims
OG exemplary drawing
 
1. An operation apparatus for performing an operation by steering an end effector, the operation apparatus comprising:
a wire which is connected to the end effector to steer the end effector;
a tension compensator which is connected with the wire; and
a manipulation shaft which is rotatably formed around a rotation central axis, wherein the manipulation shaft is perpendicular to a plane on which a steering trajectory of the end effector is placed, and pulls the wire back,
wherein in an operating state, the tension compensator changes a shape or position of the tension compensator in response to tension of the wire to keep the wire tight, and
when the wire is pulled to steer the end effector, the tension compensator is shifted to a lock state in which the shape or position of the tension compensator is not changed,
wherein the tension compensator is spontaneously shifted between the operating state and the lock state by the rotation of the manipulation shaft.