Importance

Loading Importance Indicators...

Abstract

The acetabulum has an outer shell (1) which is composed of several relatively rigid outer shell segments (1a, 1c) that are interconnected by resilient regions. The outer shell (1) has regions of high shape stability which are elastically connected to each other. The outer shell segment (1) in the region of the direction of main loading (F) is made as an attachment zone (1a) and has apertures for bone screws and a guiding and attachment bore (3) for an inner shell (10). The guiding bore (3) is with respect to the whole outer shell (1) situated at the pole (P2). In the region of main loading (F) the outer shell (1), that is the attachment zone (1a), bears, engaged by shape, onto the inner shell (10), whereas the remaining outer shell segments (1c) have a spacing (D) from the inner shell (10), so that by the bell-like suspension of the inner shell (10) at the pole (P2) the inner shell is movable, particularly perpendicularly, to the axis (18), while damping elements (13a) of the inner shell (10) transmit onto the outer shell (1) particularly impact forces in a dampened manner.

Loading the Abstract Image...

First Claim