The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2025
Filed:
Jul. 19, 2022
The Feinstein Institutes for Medical Research, Manhasset, NY (US);
Stanley Asnis, Port Washington, NY (US);
Todd Goldstein, Albertson, NY (US);
The Feinstein Institutes for Medical Research, Manhasset, NY (US);
Abstract
There is provided an acetabular cup liner for a total hip replacement (THR) prosthesis comprising an inner surface with a hemispherical portion having a radius of curvature. The hemispherical portion is disposed about a centerline and it intersects a hemisphere plane perpendicular to the centerline so that the intersection of the hemispherical portion and the plane define a circle having a radius equal to the radius of curvature. The liner further comprises a capture portion continuous with the hemispherical portion that has the same radius of curvature as the hemispherical portion and connects with the hemispherical portion at the hemispherical plane along a first arc of the circle on the plane, and extends a first distance out of the plane. The liner further comprises an insertion portion continuous with the hemispherical portion. The insertion region is connected with the hemispherical portion along a second arc of the circle on the plane. The distance from the centerline to the insertion portion is greater than the radius. The cup liner constrains the femoral ball portion of the THR prosthesis. The femoral ball portion is engaged with the liner by orienting the ball at an angle so that the shoulder portion of the ball aligns with the insertion portion, pressing the ball into the liner, and orienting the ball away from the angle.