Anchor and method for fixing a screw in bone
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United States of America Patent
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-
Feb 10, 1998
Grant Date -
N/A
app pub date -
May 29, 1996
filing date -
May 30, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An anchor including a shank formed from a hardened product of a calcium phosphate compound. The anchor having a strength capable of retaining its original shape, before, during and after insertion into a pre-drilled hole of a bone, and a brittleness capable of causing its original shape to disintegrate as a result of a breakage of the shank upon an application of a driving force from the screw to the shank during a driving of the screw through the anchor inserted in the bone. The present invention also relates to a method for fixing a screw in a bone. Using the anchor of the present invention, it becomes possible to easily and reliably fix a screw in a bone having a reduced strength.
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