Patent ID: 9381026
Filing Date: 2016-07-05
CPC Classification: A61B

Claim Text:
1. A custom positioning jig for a shoulder prosthesis on a glenoid, comprising: a plurality of bearing parts cooperating with the glenoid, said plurality of bearing parts cooperate, in a unique and custom manner, on a patient's anatomical bone structure with an anterior lip and a posterior lip of the glenoid, by means of a first oriented arm and a second oriented arm, forming a pair of oriented hook-shaped tabs, the first oriented arm cooperates with an anterior edge of the glenoid, the second oriented arm cooperates with a posterior edge of the glenoid, each of said first oriented arm and said second oriented arm have bearing areas which delineate a first oriented bearing arm sub assembly and a second bearing arm sub assembly respectively which separate an edge and lip of the glenoid; and a gripping handle coupled to said plurality of bearing parts to form a custom positioning jig to act as a drilling guide, a positioning and an orientation of the gripping handle determined with respect to a three-dimensional coordinate system specific to a scapula of the patient to be operated on resulting from intraoperative planning giving a drilling center line defined by a vector and an origin, determining a center of the glenoid and the orientation in space of the custom positioning jig.