Patent ID: 9364290
Filing Date: 2016-06-14
CPC Classification: A61B,F16M

Claim Text:
1. A stand for medical optical instrument comprising: a carrier arm including a first to fourth links rotatably coupled in a parallelogram shape with a first to fourth turning joints, wherein the second turning joint is rotatably coupled to a holding unit, and a front link extended from the fourth link; and a counter balancing unit coupled to the first and second links to maintain a counter balancing of the carrier arm by compensating a torque, which is generated in the second turning joint by a medical optical instrument installed on the front link, by rotating in connection with the first and second links on the second turning joint according to the rotation of the carrier arm, wherein the counter balancing unit comprises: first and second balancing links extended from the first and second links, respectively, to rotate in connection with the first and second links on the second turning joint; and first and second counter weights installed on the first and second balancing links, respectively.