公开(公告)号：US20170151018A1

公开(公告)日：2017-06-01

申请号：US15361928

申请日：2016-11-28

Applicant: ORTHOSOFT, INC.

Inventor： YVAN LEONE ,  MATHIEU CHEVRIER ,  MYRIAM VALIN ,  BRUNO FALARDEAU ,  BENOIT PELLETIER ,  KARINE DUVAL

IPC: A61B34/10 ,  A61F2/34 ,  A61B17/17

CPC classification number: A61F2/34 ,  A61B5/1121 ,  A61B17/1746 ,  A61B34/20 ,  A61B2034/105 ,  A61B2034/2048 ,  A61B2034/2059 ,  A61B2034/2068 ,  A61B2090/061 ,  A61B2562/0219 ,  A61F2002/4658

Abstract: A computer-assisted surgery (CAS) system for navigating a surface of an anatomical feature in a coordinate system comprises an apparatus for obtaining points of a surface of an anatomical feature including a base adapted to be secured to the anatomical feature, a spherical joint supported by the base, the spherical joint having a ball member rotatable in at least two rotational degrees of freedom relative to the base and having a center of rotation fixed relative to the base, a distance-measurement device connected to the ball member such that a distance-measurement axis of the distance-measurement device passes through said center of rotation of the ball member. An inertial sensor unit produces signals representative of the orientation of the distance-measurement device. A CAS processor receives the signal from the at least one inertial sensor unit and outputs orientation data relating at least an object relative to the surface of the anatomical feature using the model of the surface in the coordinate system and the signals from the at least one inertial sensor unit.