Autoinjector device
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United States of America Patent
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Nov 14, 2017
Issued Date -
N/A
app pub date -
Mar 26, 2012
filing date -
Mar 24, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
An autoinjector device includes an elongate housing containing a syringe or cartridge having an internal piston for expressing a dose from the syringe or cartridge. A drive mechanism includes a drive member engaging the piston and a drive spring acting on the drive member. A side-operated trigger arrangement includes a retention element movably mounted in the housing from a retaining position in which the drive member is kept in a cocked condition, and a release position in which the drive member may more forwardly under spring pressure. An outer sleeve is mounted on the housing movable between a position in which the retention element is prevented from moving to release the plunger, and a position in which the retention member moves freely. The outer sleeve includes a trigger wall portion which may be depressed to move the retention element once the retention element is free to move, releasing the plunger.
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