Injection device
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United States of America Patent
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May 5, 2015
Grant Date -
Mar 28, 2013
app pub date -
Nov 21, 2012
filing date -
Jun 16, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
An injection device for injection of set doses of medicine from a cartridge, in which syringe a dose is set by screwing a nut up along a threaded piston rod, whereby a dose setting drum, which carries on its cylindrical surface along a helix a scale of which a number corresponding to the set dose is shown in a window in the housing of the syringe, and an injection button, which is elevated over the end of the syringe, are moved axially a distance which is larger than the axial movement of the nut. A gear wheel gear transmission is established between the nut and the injection button.
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