Simplified safety syringe with retractable self-biased needle and minimized plunger
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United States of America Patent
Stats
-
Oct 29, 1996
Grant Date -
N/A
app pub date -
Jun 23, 1995
filing date -
Jun 23, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A safety syringe for saving cost includes: a coupling member of arrowhead shape integrally formed with the thin-disk plunger, an annular ring embedded on the plunger to allow the plunger to be slibably held in the syringe for injection use, a syringe cylinder integrally formed with a sleeve portion on a front portion of syringe cylinder, an annular depression formed at the lower portion of said sleeve portion, a hollow needle which comprising a shank portion and a needle portion, said shank portion which connected with needle portion having a bias socket, said shank portion formed integrally a downward depression in it's rear portion from middle portion of the shank portion to somewhere beyond bias socket appropriate whereby upon retraction of the plunger and the coupled needle into the syringe, the needle will be inclined to prevent a further outward protruding of the retracted needle, and said shank portion could be held in the sleeve portion.
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