Medical appliance for bridging and stabilizing spaced apart bone segments having a bone screw locking system
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United States of America Patent
Stats
-
Jan 24, 2006
Grant Date -
Feb 12, 2004
app pub date -
Apr 21, 2003
filing date -
Sep 25, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A locking system for attaching a first workpiece to a bone or second workpiece. A countersink in the first workpiece has an opening for receiving a screw having a threaded first end, an opposite top head end, and a collar. The collar has external threads which engage complimentary threads in the counter sink. The collar is sized to allow the screw head to rotate within a smooth concave cavity in the collar while at the same time retaining the screw within the collar. Once the screw is threaded into the bone (or second workpiece), the collar retains the screw securely in the first workpiece.
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Family
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Cited Art Landscape
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