Patent ID: 9572682
Date: 2017-02-21
CPC Classifications: A61B,A61F

Claim:
1. A method for precise intra-operative positioning of a total hip prosthesis in a human subject, comprising: determining a pelvic axis of a human subject in need of hip arthroplasty; attaching a first electronic position sensor (ES1) to a bony anatomic site on the pelvic axis of the subject; attaching a second electronic position sensor (ES2) to a cup impactor, wherein the first and second electronic position sensors are capable of acting in combination to report information useful to calculate a true angle of inclination and a true angle of forward flexion of an acetabular prosthetic cup; contacting the cup impactor with the acetabular prosthetic cup that is to be implanted into a prosthetic implantation site in the subject; transferring information from the first and second electronic position sensors to a computer processor running application software, wherein the application software calculates the true angle of inclination and the true angle of forward flexion of the acetabular prosthetic cup; and displaying results of the calculations on an electronic visual display device while the prosthesis is being surgically positioned for implantation into the subject.