公开(公告)号：US20180064500A1

公开(公告)日：2018-03-08

申请号：US15670310

申请日：2017-08-07

Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

Inventor： Mark FROGGATT ,  Eric SANBORN ,  Alexander K. SANG ,  Matthew S. WOLFE

IPC: A61B34/00 ,  G02B6/02 ,  G01L1/24

CPC classification number: A61B34/76 ,  A61B34/70 ,  A61B90/06 ,  A61B2090/064 ,  A61B2090/067 ,  G01L1/242 ,  G02B6/02042

Abstract: A hinged tool includes a first member; a second member pivotally connected to the first member at a pivot; and an optical fiber. The optical fiber is fixed to the first member at a load application region and fixed to at least one of the pivot and the second member at a location such that the optical fiber bends when the first member and the second member are pivoted with respect to one another. A method of using a hinged tool includes measuring fiber strain in an optical fiber fixed to the hinged tool, and determining at least one of tool strain applied to the hinged tool and a degree of pivoting of the hinged tool using the fiber strain.