Method of making an implantable joint prosthesis

Details Method of making an implantable joint prosthesis Method of making an implantable joint prosthesis

1990-10-25

1992-09-22

Ruggiero, Joseph

Boots, shoes, and leggings

623 18, G06F 1546, A61F 230

Patent

active

051503042

ABSTRACT:
A method of making a joint implant prosthesis which has a shaft adapted to fit into the bone cavity of a tubular bone and having a core region and a shaft region. The geometry of the bone cavity is determined by an irradiation method and based upon the detected geometry, the shaft is dimensioned. First a geometric centroid axis of the bone passage is determined and then the core region built up by computer around this axis with the aid of finite element analysis based upon geometry of the bone cavity. The boundary conditions of an undercut-free shaft and uniform distribution of the normal stresses in the shaft bone transition region are observed. The second boundary condition is also used as a control in the coating of the core with synthetic bone material and in the configuration of the surface region.

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McGraw-Hill Encyclopedia of Science & Technology, pp. 409, 410; date unkn. n

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