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 2430922

An injection device for injection of a medicament from a medicament cartridge, the medicament cartridge (40) having a bung (48) displaceable within the medicament cartridge (40) to cause medicament to be expelled from the medicament cartridge (40) is disclosed. The injection device comprises a drive mechanism (42) for selectively acting on the bung (48) to dispense the medicament from the medicament cartridge (40) and an electronic control unit for controlling operation of the drive mechanism (42). Under the control of the electronic control unit the drive mechanism (42) initially acts at first speed and at a second speed thereafter.

L'invention concerne un dispositif d'injection de m~dicament ~ partir d'une cartouche de m~dicament, cette cartouche (40) comportant une bonde (48) d~pla×able ~ l'int~rieur de la cartouche (40), provoquant l'expulsion du m~dicament ~ l'ext~rieur de la cartouche (40). Le dispositif d'injection comprend un m~canisme d'entra¹nement (42) permettant d'agir s~lectivement sur la bonde (48) afin de distribuer le m~dicament ~ partir de la cartouche (40) ainsi qu'une unit~ de commande ~lectronique destin~e ~ commander le fonctionnement du m~canisme d'entra¹nement (42). Sous la commande de l'unit~ de commande ~lectronique, le m~canisme d'entra¹nement (42) fonctionne, au d~part, ~ une premi­re vitesse, puis ensuite ~ une seconde vitesse.

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