Auto-injector
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
Oct 11, 2012
filing date -
Oct 21, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Described is an injection device for administering a dose of a medicament (M) comprising a carrier adapted to contain a syringe having a hollow injection needle and a stopper, a drive spring, a plunger adapted to forward load of the drive spring to the stopper, and a noise component adapted to generate an audible and/or tactile feedback by impacting a component of the injection device when the stopper is located at a proximal end of the syringe. In a first state, a resilient arm on the plunger is maintained in engagement with the noise component by the carrier. In a second state, the arm disengages the noise component and deflects at least partially into an aperture in the carrier.
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