VERTEBRA CONNECTION MEMBER AND NUT DRIVER
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United States of America Patent
Stats
-
N/A
Issued Date -
Feb 12, 2009
app pub date -
Feb 13, 2008
filing date -
Feb 14, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A vertebra connection member has: a screw member that is screwed in a vertebra; a connector member that connects a rod and the screw member; a first nut member that fixes the screw member and connector member; a second nut member that prevents the loosening of the first nut member; and a fixing member that fixes the rod and connector member. The first and second nut members are formed to have a cylindrical shape; and engagement concave portions of a concave curved shape are formed in the outer peripheral surface of the nut members from the rear ends in the screw-in direction to the front ends in the screw-in direction, in the direction in which the nut members are screwed onto the second male portion.
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Family
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Cited Art Landscape
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