COMBINED CONTAINER-SYRINGE
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United States of America Patent
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-
N/A
Issued Date -
Jun 3, 2010
app pub date -
Nov 25, 2009
filing date -
Nov 28, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A combined container-syringe includes: a cartridge; a needle hub having a base portion, a cylinder portion inside which a bypass chamber is formed, and a needle attachment portion inside which an introducing hole communicated with an injection needle is formed; a front stopper; a rear stopper; and a plunger rod connected to the rear stopper, in which: a bypass groove communicated with the introducing hole, and an annular groove connected to the bypass groove are formed on an inner circumferential surface of the bypass chamber; an air-bubble introducing groove is formed on an outer circumferential surface of the front stopper, the air-bubble introducing groove extending from a rear end surface of the front stopper toward a front end; and the air-bubble introducing groove and the annular groove are communicated with each other in a state where a part of the front stopper is disposed in the cartridge.
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