Autoinjector with audible indication of completed delivery
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United States of America Patent
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Sep 19, 2017
Grant Date -
Sep 24, 2015
app pub date -
Jun 2, 2015
filing date -
Sep 29, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a device for automatic injection of a product into an injection site, the device comprising: a container having a displaceable piston; a tubular housing having at least a flexible part which, in a rest state, defines a first opening; a piston rod; and, an intermediate part fixed to the piston rod which defines a diameter larger than the first opening. With sufficient distal displacement of the piston rod, the intermediate part causes the at least a flexible part to deflect outwardly with further distal displacement of the piston rod causing the intermediate part to wholly pass through the first opening with the at least a flexible part returning towards the at rest state, engagement of the at least a flexible part with a surrounding element under force of movement towards the at rest state generating a sound.
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