Safety syringe
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United States of America Patent
Stats
-
Dec 7, 2004
Grant Date -
Nov 18, 2004
app pub date -
May 15, 2003
filing date -
May 15, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A safety syringe is disclosed. A plurality of axial slits are formed in the outer wall of the unidirectional buckling chamber of the seat. An inner wall of the unidirectional buckling chamber has a second unidirectional buckling lip. A buckling head at a front end of the rod head of the push rod is installed with a unidirectional buckling lip; the third unidirectional buckling lip is installed with a plurality of slits so that the third unidirectional buckling lip is elastic. Thereby, by the axial slits of the unidirectional buckling chamber and the slits of the third unidirectional buckling lip, when the push rod is pushed to a foremost end, the buckling head at the front end of the rod head is pushed into the unidirectional buckling chamber at the rear end of the rod head of the push rod.
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