Surgery – Truss – Pad
Patent
1980-06-06
1982-05-11
Frinks, Ronald L.
Surgery
Truss
Pad
3 1913, 128 92C, 128 92CA, A61F 124
Patent
active
043285937
ABSTRACT:
A prosthesis for forming the spherical part of a hip joint with a calotte-shaped cap is disclosed. The inner surface of the prosthesis is provided with grooves and ribs which are evenly distributed over the circumference of the inner surface and extend along planes which, in turn, extend through the rotational symmetry axis of the outer cap surface. A sleeve having jacket is provided with holes is rigidly secured at the inner end of the inner cap surface on the cap and projects partly out of the latter. The ribbing of the inner cap surface and the sleeve permit the prosthesis to be firmly and durably secured in an operation on the bone without cement.
REFERENCES:
patent: 2537070 (1951-01-01), Longfellow
patent: 4007494 (1977-02-01), Sauer
"Histomorphological Investigation of Coxa Femoral Ends Following Double-Cup Arthroplasty According to Freeman" by M. D. Cserhati et al., Archives of Orthopaedic & Traumatic Surgery, 94, pp. 233-240, 1979.
Straumann Fritz
Sutter Franz
Frinks Ronald L.
Institut Straumann AG
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