Patent ID: 6045583
Filing Date: 2000-04-04
Classification: A61F,B21K,B23P

Abstract:
A twin-shelled artificial hip joint socket comprising:an outer shell of titanium and an inner shell of high molecular compressed polyethylene, with the outer shell including a portion that projects inwardly beyond the inner shell in the region of the equator to such an extent that a permanent, no longer releasable connection exists between the shells, wherein the outer shell is formed from a metal sheet of deep drawing grade with a thickness 3>s>1 mm; wherein the outer shell is rolled in around a shoulder of the inner shell through a bending or rolling in process;wherein the outer shell has at least one protrusion approximately in a main load direction with an anchoring pin fastened thereto; andwherein the pin has a positioning tip penetrating up to and into the inner shell as a security against rotation by the inner shell.