公开(公告)号：US20180085171A1

公开(公告)日：2018-03-29

申请号：US15720531

申请日：2017-09-29

Applicant: ORTHOSOFT, INC.

Inventor： Bruno FALARDEAU ,  Catherine PROULX ,  Herbert Andre JANSEN ,  Benoit PELLETIER ,  Jonathan Tardif

IPC: A61B34/10 ,  A61B34/00

CPC classification number: A61B34/10 ,  A61B34/20 ,  A61B34/25 ,  A61B34/70 ,  A61B2034/2048 ,  A61B2034/2055 ,  A61B2090/061 ,  A61B2090/3983 ,  A61B2090/3991

Abstract: A computer-assisted surgery system for obtaining a distance between at least two fixed points relative to a bone comprises a first accelerometer unit located at a first fixed location on the bone, and producing first acceleration data during a movement of the bone. A second accelerometer unit is located at a second fixed location on the bone, and simultaneously producing second acceleration data during the movement. A gyroscope unit is fixed to the bone and simultaneously producing angular rates of change of said movement. A processor unit obtains the acceleration data and the angular rates of change for calculating the distance between the first fixed position and the second fixed position on the bone using a distance value of a distance vector between the accelerometer units. An interface outputs the distance between the first fixed position and the second fixed position relative to the bone. A method for calculating a distance between at least two points on a bone is provided.