公开(公告)号：US20180250144A1

公开(公告)日：2018-09-06

申请号：US15968868

申请日：2018-05-02

Applicant: ORTHOSOFT INC.

Inventor： Di LI ,  Louis-Philippe AMIOT ,  Herbert Andre JANSEN ,  Francois PARADIS ,  Isabelle ROBITAILLE ,  Bruno FALARDEAU ,  Karine DUVAL ,  Myriam VALIN ,  Yvan LEONE ,  Yonik BRETON ,  Benoit PELLETIER ,  Mathieu CHEVRIER ,  Jerome CASAUBON

IPC: A61F2/46 ,  A61B90/13 ,  A61B34/10 ,  A61B34/20

CPC classification number: A61F2/4609 ,  A61B90/13 ,  A61B2034/104 ,  A61B2034/2048 ,  A61F2002/4623 ,  A61F2002/4687

Abstract: A method for assisting in positioning the acetabular cup comprises orienting a cup positioning instrument with a cup thereon in an initial reference orientation relative to an acetabulum of a pelvis with the cup forming a joint with the acetabulum, the cup positioning instrument comprising an inertial sensor unit with pre-planned orientation data for a desired cup orientation based on at least one landmark of the pelvis, The cup positioning instrument is rotated to a desired abduction angle as guided by an interface of the cup positioning instrument, based on movements relative to at least one landmark. The cup positioning instrument is rotated to a desired anteversion angle as guided by the interface of the cup positioning instrument, based on movements relative to the at least one landmark. Upon reaching the desired cup orientation as indicated by the interface, the cup is impacted into the acetabulum.

公开(公告)号：US20180008354A1

公开(公告)日：2018-01-11

申请号：US15712929

申请日：2017-09-22

Applicant: ORTHOSOFT INC.

Inventor： Tin NGUYEN ,  Yvan LEONE ,  Benoit PELLETIER

IPC: A61B34/20 ,  A61B17/00

CPC classification number: A61B34/20 ,  A61B2017/00477 ,  A61B2034/2048 ,  A61B2090/3983

Abstract: A computer-assisted surgery (CAS) navigation assembly comprises a micro-electromechanical sensor (MEMS) navigation unit having one or more MEMS to provide at least orientation data. A support receives the MEMS navigation unit therein, the support being adapted to be mounted on the instrument in a fixed orientation relative to established navigated features of the instrument. At least two mating ball-in-socket features are disposed between the MEMS navigation unit and the support at opposed ends thereof for releasably engaging the MEMS navigation unit in precise orientational alignment within the receptacle, the at least two mating ball-in-socket features comprising catches aligned along an axis extending between the opposed ends, at least one of the catches being a biased catch. A method of connecting a MEMS navigation unit with a mating support fixed to a CAS instrument navigated by the CAS system is also provided.