Safety needle for accessing the interior of a hip joint
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United States of America Patent
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Apr 16, 2013
Grant Date -
Jul 16, 2009
app pub date -
Sep 15, 2008
filing date -
Sep 13, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A safety needle comprising a handle; a hollow needle; a trigger carriage; an obturator; a spring; a trigger; a first latch and a second latch; the first latch, second latch and trigger being configured so that when the trigger carriage is in a distal position and the first latch set, and the trigger is thereafter pulled proximally, the first latch is released and the trigger carriage moves proximally into a proximal position, and thereafter releasing the trigger causes the trigger carriage to move into an intermediate position and set the second latch; and further wherein, when the trigger carriage is in its intermediate position and the distal end of the obturator engages tissue, the trigger carriage is moved proximally so as to release the second latch.
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