Patent · US Expired

Prosthesis having a deformable implant surface

US5133767A · kind A · utility

35Cited by

1References

6Claims

0Family size

Assignee

Sulzer Brothers Limited · CH

Inventors

Otto Frey · Winterthur, CH
Rudolf Koch · Oberhaching, DE
Hans Fluckiger · Männedorf, CH

Key dates

Filing date	Sep 20, 1990
Grant date	Jul 28, 1992
Priority date	—
Expiry date	Sep 20, 2010

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2310/00011
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A hip joint prosthesis in the form of a femur head prosthesis or acetabulum has a mesh secured over at least part of the implant surface to define a cavity between the mesh and the supporting member of the prosthesis. The mesh is made of elastically deformable material to permit inward deformation during implantation. In addition, bone cement can be injected into the cavities so that the mesh then follows the individual shape of the cavity in the bone to mesh into the internal structure of the bone with hardened bone cement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.