Injection device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 16, 2003
Grant Date -
May 2, 2002
app pub date -
Jun 14, 2001
filing date -
Jun 16, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An injection device for injection of set does of medicine from a cartridge has a nut that is screwed up along a threaded piston rod during a dose setting operation. The nut is screwed along the piston rod by rotating a dose setting drum. An injection button is coupled to the piston rod with a gear wheel transmission. Axial movement of the injection button causes a corresponding axial movement of the piston rod until the nut engages an abutment in the housing.
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