Locking mechanism for a jet injector
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United States of America Patent
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-
May 21, 2002
Grant Date -
N/A
app pub date -
Oct 25, 1999
filing date -
Oct 25, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A needle assisted jet injector having a locking mechanism for reducing the likelihood of inadvertent contact with the needle and deterring intentional reuse of the needle are disclosed. Upon activation of the force generating source, a portion of the needle extends past the nozzle assembly and penetrates the outer layer of skin to deliver the medicament via jet injection to a deeper region. After activation, the needle retracts back into the nozzle assembly. The locking mechanism includes a needle holder and a locking ring, which mate upon activation of the injector and prevent reignition.
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