A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
3/100
A61F 2/30 (2006.01) A61F 2/00 (2006.01) A61F 2/36 (2006.01) A61F 2/46 (2006.01)
Patent
CA 1060152
ABSTRACT OF THE DISCLOSURE Metal prosthetic devices having stems implantable in bone are known, the stem of each such device extending from a collar surface designed to bear against the cut surface of the bone. In this invention, an interpositioning collar made from a material having a low modulus of elasticity is provided which can be fitted onto the stem and be partially implanted therewith to improve the joint between the cut bone surface and the collar sur- face of the prosthetic device, as well as the joint between the im- planted stem and the adjacent bone portions. The interpositioning collar consists of a flat elongated, lengthwise tapered collar element which may be either O-shaped or U-shaped and a flange which is U-shaped and extends perpendicularly from the lower face of the collar element. In use, the collar element and flange em- brace the implanted stem of the prosthetic device, the collar ele- ment lying immediately below the collar of the prosthetic device and flat on the cut surface of the bone, with the flange extend ing into the bone alongside a topmost portion of the stem.
260008
Cotter Robert F.
Weisman Sidney
Howmedica
Na
LandOfFree
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