Drug delivery device with piston rod carrying dose markings

Details Drug delivery device with piston rod carrying dose markings Drug delivery device with piston rod carrying dose markings

A - Human Necessities

61

M

A61M 5/315 (2006.01) A61M 5/24 (2006.01) A61M 5/31 (2006.01)

Patent

CA 2746865

The present invention relates to a drug delivery (5) comprising a housing (10) with a proximal end (30) and a distal end (22), a cartridge holder (14) adapted to retain a cartridge (16), the cartridge holder (14) comprising an at least partially transparent side wall (36), a piston rod (26), the piston rod (26) being adapted to drive a piston so as to engage the piston (28) into the cartridge (16), and a plurality of symbols (32) on the piston rod (26), the symbols (32) representing dosage information during operation of the drug delivery device (5) and being visible through a window aperture (40) in the housing (10) or in the cartridge holder (14).

La présente invention porte sur une administration d'un médicament (5) comprenant un boîtier (10) comportant une extrémité proximale (30) et une extrémité distale (22), un porte-cartouche (14) apte à tenir une cartouche (16), le porte-cartouche (14) comprenant une paroi latérale au moins partiellement transparente (36), une tige de piston (26), la tige de piston (26) étant apte à entraîner un piston de façon à introduire le piston (28) dans la cartouche (16), et une pluralité de symboles (32) sur la tige de piston (26), les symboles (32) représentant des informations de dosage durant l'actionnement du dispositif d'administration de médicament (5) et étant visibles à travers une ouverture de fenêtre (40) dans le boîtier (10) ou dans le porte-cartouche (14).

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