Artificial socket

Details Artificial socket Artificial socket

2006-03-28

2006-03-28

Isabella, David J. (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

C623S022230, C623S022380

Reexamination Certificate

active

07018417

ABSTRACT:
The present invention relates to a socket for an artificial hip joint. The present invention provides an artificial joint socket for knocking into a bone, with an excellent primary stabilization, which may be manufactured so that at least two locking elements are arranged in the distal superficies region of the socket shell. The locking elements anchor the socket shell in the hip bone and safeguard against tensile forces, torsion forces, and combined tensile and torsion forces. The locking elements effectively prevent the socket from rotating-out opposite the knock-in direction. When knocking in the implant, the locking elements cut into the bone and rotate the socket shell about the socket axis by a few degrees. The socket of the present invention forms a gradient of web-like locking elements with respect to the socket base surface, increasing from the distal or equatorial end towards the proximal or pole-side end, enabling the locking elements to jam and lock the implant against axial tensile forces, radial torsion forces, as well as the combination of both forces.

REFERENCES:
patent: 3840904 (1974-10-01), Tronzo
patent: 4743262 (1988-05-01), Tronzo
patent: 6537321 (2003-03-01), Horber
patent: 0 923 915 (1998-11-01), None
patent: 1 068 843 (2000-04-01), None
patent: 1 099 426 (2000-11-01), None
patent: 1 072 236 (2001-06-01), None
patent: 2 716 106 (1994-02-01), None
patent: WO 99/03429 (1999-01-01), None

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