Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1988-09-23
1990-06-26
Isabella, David J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
A61F 242
Patent
active
049368605
ABSTRACT:
A scaphoid implant surgically insertable adjacent the trapezium, the trapezoid, the lunate, the capitate and the radius bones includes a rigid, metal body. The body defines a capitate articulating surface, a radius articulating surface and a lunate articulating surface. A stem extends from an inferior surface of the body. The stem defines a trapezium engaging ledge. The ledge when implanted engages the trapezium to prevent vertical or dorsal movement of the implant out of the plane of the wrist. The body defines a bore for receiving a suture to prevent rotation at the scapholunate junction.
REFERENCES:
patent: 3745590 (1973-07-01), Stubstad
patent: 3879767 (1975-04-01), Stubstad
patent: 3924276 (1975-12-01), Eaton
patent: 4164793 (1979-08-01), Swanson
patent: 4198712 (1980-04-01), Swanson
Vitallium Surg. Appliance (catalog), Howmet Corp., New York, NY, 1964, pp. 54 and 84.
Article entitled "Reconstruction of the Thumb Basal Joints, Development and Current Status of Implant Techniques", by Alfred B. Swanson, M.D. and Genevieve De Groot Swanson, M.D.
Work entitled "Clinical Symposia, Reconstructive Surgery in the Arthritic Hand and Foot", vol. 31, No. 6 (1979) by Alfred B. Swanson.
Work entitled "Flexible Implant Resection Arthroplasty in the Hand and Extremeties", by Alfred B. Swanson, published 1973, pp. 1-6, 15, 16, 30, 31 and 240-253.
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