Retracting sheath detachable safety needle with moving spring
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United States of America Patent
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-
May 17, 2016
Grant Date -
Oct 3, 2013
app pub date -
Mar 11, 2013
filing date -
Mar 14, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A passive safety needle device is disclosed having a housing, a needle hub, a needle cannula, a retractable sheath, a spring to bias the retractable sheath in a distal direction to cover the distal end of the needle cannula, a radial protrusion to cause the spring to move from the proximal spring position to the distal spring position, and a catch to secure the distal end of the spring to the distal end of the housing. The spring may bias the retractable sheath in a distal direction to cover the distal end of the needle cannula. The radial protrusion causes the spring to move from a proximal spring position to the distal spring position towards the catch located at the distal end of the housing.
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