公开(公告)号：US11311339B2

公开(公告)日：2022-04-26

申请号：US16249333

申请日：2019-01-16

Applicant: ORTHOSOFT INC.

Inventor： Herbert Andre Jansen ,  Louis-Philippe Amiot ,  Isabelle Fontaine ,  Sebastien Jutras ,  Daniel Odermatt ,  Benoit Pelletier

IPC: A61B34/20 ,  A61F2/34 ,  A61B34/10 ,  A61B5/06 ,  A61B5/103 ,  A61B17/15 ,  A61B17/17 ,  A61F2/46 ,  G09B23/28 ,  G09B23/30 ,  A61B90/00 ,  A61B17/16 ,  A61F2/32 ,  A61B5/00 ,  A61F2/30 ,  A61F2/36 ,  A61B34/00

Abstract: A CAS system and method for guiding an operator in inserting a femoral implant in a femur as a function of a limb length and orientation of the femoral implant with respect to the femur, comprising a reference tool for the femur, a registration tool, a bone altering tool and a sensing apparatus. A controller is connected to the sensing apparatus to: i) register a frame of reference of the femur by calculating surface information provided by the registration tool as a function of the position and orientation of the registration tool provided by the sensing apparatus, and/or retrieving in a database a model of the femur; ii) calculate a desired implant position with respect to the frame of reference as a function of the limb length; and iii) calculate a current implant position and orientation in relation to the desired implant position with respect to alterations being performed in the femur with the bone altering tool, as a function of the position and orientation of the bone altering tool provided by the sensing apparatus and of a digital model of a femoral implant provided by the database. The database is connected to the controller for the controller to store and retrieve information relating to an operation of the controller. The computer-assisted system may be used to guide an operator in inserting a pelvic implant in an acetabulum as a function of an orientation of the pelvic implant with respect to the pelvis.