A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/00 (2006.01) A61F 2/46 (2006.01)
Patent
CA 2072243
ABSTRACT OF THE DISCLOSURE A method and apparatus for removing a pre-placed prosthetic appliance anchored in place in a bone recess by a cement mantle and conditioning the recess for receipt of a replacement appliance. The pre- placed appliance is first pulled from the mantle of hardened cement holding it within the recess thus leaving a cavity within the mantle. A screw threaded post having nuts threadably engaged therewith at longitudinally spaced locations is then anchored within the cavity with a new mass of cement. Thereafter, the post is threadably disengaged from the nuts, leaving the nuts in place within the new mass of cement. A pulling tool is then successively engaged with the nuts and tensioned to incrementally remove the mantle from the recess.
Mccoll Milton B.
Moll Frederic H.
Gowling Lafleur Henderson Llp
Linvatec Corporation
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