Single use syringe
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United States of America Patent
Stats
-
Feb 7, 2006
Grant Date -
Dec 19, 2002
app pub date -
Feb 22, 2001
filing date -
Feb 22, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A single use syringe has a needle which is biased back into the barrel but which is prevented from doing so by a holding means which has an outer part and an inner part which are connected together by a frangible portion. The needle is held by the inner part. When the plunger is pushed towards the front of the barrel, it contacts the outer part and pushes it forwardly which stretches the frangible portion until it bursts. When the frangible portion breaks, the inner portion containing the needle is released and can shoot back into a hollow portion in the plunger through the frangible portion of the plunger head.
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Family
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Cited Art Landscape
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