Spinal fixation
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United States of America Patent
Stats
-
Aug 16, 1988
Grant Date -
N/A
app pub date -
Mar 25, 1986
filing date -
Feb 28, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spinal scoliosis fixation implant comprises a plurality of devices which are associated with respective vertebrae and which are interconnected by a single semi-rigid wire, or by a cable with abutment ferrules. Each device may comprise a bone screw or hook with a slotted, externally threaded head into which is inserted the wire or cable and thereon a clamping element which projects slightly from the mouth of the slot, and a nut which is screwed onto the head to press the clamping element onto the wire or cable. The wire or cable can be unclamped, to permit adjustment of the device along the wire or cable, by simply untightening the nut.
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