Element for temporarily increasing the rigidity of an orthopaedi

Details Element for temporarily increasing the rigidity of an orthopaedi Element for temporarily increasing the rigidity of an orthopaedi

1996-06-04

1998-03-10

Milano, Michael J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 16, 623 18, 606 77, A61F 232

Patent

active

057255903

ABSTRACT:
The element (20) according to the invention comprises a biodegradable body which is, before or during the implantation of an orthopaedic prosthesis (1), inserted into a recess (2) in the prosthesis (1) such that the rigidity of the prosthesis is increased. The element (20) provides mechanical connection between the shell segments (1a, 1b, 1c) so that the element (20) performs a supporting function which reduces the elastic properties of the outer shell (1). The ability of the biodegradable element (20) to transfer forces is increasingly reduced after the implantation so that the outer shell (1) of the artificial acetabulum has increasingly more elastic properties depending on the mechanical properties determined by the structure. Some time after the implantation, the biodegradable element (20) degrades so much that it no longer transfers any forces.

REFERENCES:
patent: 4329743 (1982-05-01), Alexander
patent: 5092896 (1992-03-01), Meuli et al.
patent: 5116357 (1992-05-01), Eberbach
patent: 5163960 (1992-11-01), Bonutti
patent: 5201735 (1993-04-01), Scott et al.
patent: 5207712 (1993-05-01), Cohen
patent: 5310408 (1994-05-01), Schryner et al.
patent: 5360450 (1994-11-01), Giannini
patent: 5507828 (1996-04-01), Maumy

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