Pen-type injector having an electronic control unit

Details Pen-type injector having an electronic control unit Pen-type injector having an electronic control unit

A - Human Necessities

61

M

A61M 5/24 (2006.01) A61M 5/142 (2006.01) A61M 5/145 (2006.01) A61M 5/172 (2006.01) A61M 5/315 (2006.01)

Patent

CA 2430931

An injection device (2) having a drive mechanism (42) to expel selectively a dose of medicament from a medicament cartridge (40) through a needle arrangement is disclosed. The injection device (2) also comprises a processor to control the drive mechanism (42), a dispense button (18) to generate a signal to the processor to cause the medicament to be expelled and a priming detector to detect a predetermined orientation of the injection device. When the predetermined orientation is detected the processor will only actuate the drive mechanism (42) to expel a small amount of medicament.

L'invention concerne un dispositif d'injection (2) comportant un m~canisme d'entra¹nement (42) servant ~ expulser de mani­re s~lective une dose de m~dicament d'une cartouche de m~dicament (40), ~ travers un agencement d'aiguille. Ce dispositif d'injection (2) comporte ~galement un processeur destin~ ~ commander le m~canisme d'entra¹nement (42), un bouton de distribution (18) destin~ ~ cr~er un signal ~ destination du processeur pour provoquer l'expulsion du m~dicament, ainsi qu'un d~tecteur d'amor×age destin~ ~ d~tecter une orientation pr~d~termin~e du dispositif d'injection. Lorsque cette orientation pr~d~termin~e est d~tect~e, le processeur n'a plus qu'~ actionner le m~canisme d'entra¹nement (42) pour expulser une petite quantit~ de m~dicament.

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