Prosthesis cup for the acetabular socket of a hip joint

Abstract

Abstract 1. Prothesis shell for the acetabulum cup of a hip joint for the mounting of an in particular synthetic femur head, comprising an outer shell (2) the outside (3) of which is to be fixed in the cup tissue and an inner shell (4) which is positively connected to the outer shell (2) and the inside (12) of which is to be mounted on the femur head, and further comprising a cushioning layer (7) disposed between the outer shell (2) and the inner shell (4), characterised in that the cushioning layer (7) consisting in per se known manner of silicone has a plurality of mutually spaced apart holes (19) traversing it, and in that when the hip joint is in the resting state and is not under load the cushioning layer (7) ends at a distance (a') from a shoulder face (18) of one of the shoulders (19) protruding from the outside (16) of the bottom edge portion of the inner shell (4) and in that the inner shell (4) has on the portion of its outside (16) neighbouring on its free edge (14) a projection (17, 17') which engages into a slot-shaped recess (13) provided on the inside (12) of the outer shell (2).

Inventors

• 👤 Klaus-Dieter Schelhas
• 👤 Johan Rusdea

Bibliographic Details