Drug Delivery Device with a Drive Mechanism
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United States of America Patent
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Issued Date -
Jan 11, 2018
app pub date -
Dec 8, 2015
filing date -
Dec 8, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
The present disclosure relates to a drive mechanism which is suitable for an injection device, especially a drug delivery device. The mechanism comprises a housing having a longitudinal axis defined by a compartment for receiving a cartridge, a plunger suitable for acting on a bung of a cartridge retained in the housing, a strained pressure spring arranged between the housing and the plunger, a retaining member coupled to the plunger, and a release member operable between a first state, in which the release member constrains the retaining member to the housing, and a second state, in which the release member is movable relative to the housing.
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