Gearing mechanism for a dose delivery device
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United States of America Patent
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Oct 21, 2014
Grant Date -
Jul 18, 2013
app pub date -
Sep 23, 2011
filing date -
Sep 24, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a gearing mechanism for a dose delivery device wherein the dose can be set by rotating a dose setting member (2, 102), and by which the dose setting member (2, 102) and a push-button (4) elevates from one end of the device proportional to the set dose from a position fixed relative to a housing (1, 101), and by which an injection of the set dose can be done by pressing the push-button back to its not elevated position, moving a piston rod (10, 110) cooperating with the piston in an cartridge (12, 112) and expelling a medicament out of the through a needle. The gearing mechanism is arranged in the device in such a way, that the loss of energy is very low.
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