Retractable safety infusion needle
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United States of America Patent
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Dec 28, 2004
Grant Date -
Oct 23, 2003
app pub date -
Apr 17, 2002
filing date -
Apr 17, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A needle device, possibly in the form of a butterfly or IV needle, has a housing with an orthogonal passage to the bore of the housing. A key that has a non-uniform opening with spaces defined by the opposing inner walls of its two extending legs is inserted into the passage. By positioning the key at different placement locations relative to the passage so that the different dimensioned spaces of the opening become aligned with the bore of the housing, the needle assembly can be selectively retained at at least a first position whereby the needle is extended out of the housing, and a second position whereby the needle is permanently retracted within the housing after use.
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