Surgery – Truss – Pad
Patent
1976-07-12
1977-12-20
Frinks, Ronald L.
Surgery
Truss
Pad
128 92C, A61F 124
Patent
active
040633144
ABSTRACT:
A total wrist prosthesis of the type which is permanently included by surgery between the hand and the forearm with osteotomy of the carpus, comprising a stem having a section and length adequate for its nailing in the radial bone, a substantially rectangular plane base from one face of which said stem projects, a support arranged on the opposite face of said base displaced from the axial axis of said stem, a rotula articulated in said support, a second stem projecting in the opposite direction from said first stem connected with said rotula and nailable in the third metacarpal bone and in the capitate bone. In one variation a thin cylindrical stem projects from the neck of the second stem bent at an angle at a distance from said second stem to provide a substantially parallel sector to said second stem allowing rotational movement. In a second variation a pair of planar triangular transverse projections are arranged in the neck of the second stem symmetrically with respect to its axis, the projections having a side perpendicular to said axis and being nailable in the third metacarpal and in the body of the capitate bone.
REFERENCES:
patent: 3760427 (1973-09-01), Schultz
patent: 3795922 (1974-03-01), Herbert et al.
patent: 3837008 (1974-09-01), Bahler et al.
patent: 3842442 (1974-10-01), Kolbel
patent: 3909853 (1975-10-01), Lennox
Original Mueli Total Wrist, Advertisement by Promed International Inc., The Journal of Bone & Joint Surgery, vol. 55-A, No. 3, Apr. 1973.
McKee Finder Joints (No. 6949), Vitallium Surgical Appliances, (Catalog), Austenal Medical Div., Howmet Corp., New York, N. Y., p. 53.
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