Hemispherical artificial hip cotyl

Abstract

Abstract The new cup is provided with a longitudinal slot (4) which extends in the meridian direction and which reaches almost as far as the apex of the cup shell (1). Provided diametrically opposite the slot (4) is an anchoring tab (6), which is secured with bone screws to the edge of the roof of the acetabulum. <??>Furthermore, the cup shell consists of two hollow sphere surfaces (F1, F2) with different radii (R1, R2), the slot (4) being arranged in the area of the surface (F2) with the greater radius (R2). <??>The new cup is a soft and resilient construction, which is able to follow the elastic movements of the pelvis without any risk of jamming of the ball of an associated femoral head prosthesis. <IMAGE>

Inventors

• 👤 Carlo Prof. Dr.-Med. Dietschi

Bibliographic Details