Prosthesis for arthroplasty of the hip

Details Prosthesis for arthroplasty of the hip Prosthesis for arthroplasty of the hip

1977-08-17

1979-11-13

Frinks, Ronald L.

Surgery

Truss

Pad

128 92C, A61F 124

Patent

active

041737970

ABSTRACT:
A hip prosthesis comprising a thin metal cotyloid cup, substantially spherical in form, the dimensions of the outer surface of which are substantially equal to those of a the cotyloid cavity, and which is provided with a peripheral flange for abutting on the bone around the cotyloid cavity and for preventing the cup from pivoting; a thin femoral cup, also made of metal, extended by a skirt and substantially in the form of a finger guard; and a relatively thick intermediate cup made of plastics material, having a spherical outer surface adapted to pivot in the cotyloid cup, and an inner surface comprising a spherical central part extended by a cylindrical portion which fits on the femoral cup so as to allow said latter to move only in rotation about the axis of symmetry of the cups.

REFERENCES:
patent: 2668531 (1954-02-01), Haboush
patent: 3528109 (1970-09-01), Scales
patent: 4051559 (1977-10-01), Pifferi
McBride Acetabulum Cups, No. 6429 and Urist Hip Sockets, No. 6428, Vitallium Surgical Appliances (Catalog), Austenal Medical Division, Howmet Corp., N.Y., N.Y., p. 30, 1964 (received Jun. 9, 1966).

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