Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1990-02-12
1992-07-28
Isabella, David
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
623 16, A61F 238
Patent
active
051337606
ABSTRACT:
Disclosed is an improved universal modular prosthetic stem extension which may be installed on a prosthesis in a multiplicity of differing orientations to allow adaptation to a multiplicity of differing patient conditions. The stem includes a coupling mechanism allowing the stem to be rotated to any one of a multiplicity of rotative positions with respect to a prosthetic base, whereupon the stem may be tightened and fixed in position at a desired such orientation. The inventive stem extension is disclosed in conjunction with embodiments of distal femoral, proximal tibial, and proximal femoral prostheses.
REFERENCES:
patent: 4462120 (1984-07-01), Rambert et al.
patent: 4714475 (1987-12-01), Grundei et al.
patent: 4963155 (1990-10-01), Lazzeri et al.
patent: 4985037 (1991-01-01), Petersen
Petersen Thomas D.
Stuart Douglas W.
Alvarado Orthopedic Research, Inc.
Burke Elizabeth M.
Isabella David
Spiegel H. Jay
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