Distraction device for spinal distraction systems
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United States of America Patent
Stats
-
Jun 7, 1983
Grant Date -
N/A
app pub date -
Mar 23, 1981
filing date -
Mar 23, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A distractor device is used to apply force to a pair of distraction hooks each positioned between selected pairs of vertebrae. The hooks are components of a spinal distraction system used in the treatment of spinal deformities or fractures. The distractor device includes a threaded rod having a pair of force applying members shiftably mounted on the rod and each engaging one of the distraction hooks. A threaded nut on the rod engages and causes one of the force applying members to be moved away from the other force applying member to exert a distraction force on the distraction hooks. Each force applying member is pivotally mounted on the rod and is also comprised of a pair of pivotally connected elements whereby the pivoting movement between the force applying members and the rod permits positioning and adjustment of the distractor device in confined spaces.
First Claim
Family
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