Injection apparatus having a needle cassette for delivering...

A - Human Necessities – 61 – M

Patent

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A61M 5/20 (2006.01)

Patent

CA 2559750

An apparatus for delivering a pharmaceutical liquid to a patient includes an outer casing; a needle cassette (524) housed in the casing and containing a plurality of mutually parallel drug injection needles; a drug cartridge housed in the casing, containing a liquid and including a sealable aperture for accessing the liquid; a direct drive assembly housed in the casing and engageable with the drug cartridge to expel a measured dose of the liquid through the aperture; a lifter assembly housed in the casing and engageable with the needle cassette to drive one of the plurality of needles partially out of the casing and into a patient while also accessing the liquid in the drug cartridge through the sealable aperture, and thereafter to withdraw the needle from the patient while halting accessing of the liquid through the sealable aperture after the measured dose of the liquid has been aAn apparatus for delivering a pharmaceutical liquid to a patient a plurality of mutually parallel drug injection needles; a drug cartridge housed in the casing, containing a liquid and including a sealable aperture for acceing the liquid; a direct drive assembly housed in the casing and engageable with the drug cartridge to expel a measured dose of the liquid through the aperture; a lifter assembly housed in the casing and engageable with the needle cassette to drive one of the plurality of needles partially out of the casing and into a patient while also accessing the liquid in the drug cartridge through the sealable aperture, and thereafter to withdraw the needle from the patient while halting accessing of the liquid through the sealable aperture after the measures dose of the liquid has been administered through the needle; motor means in the casing for driving the direct drive assembly and the lifter assembly; computer means for activating the direct drive assembly and the lifter assembly; and, a control panel for enabling a user to activate the apparatus.

Cette invention concerne un dispositif permettant d'administrer un liquide pharmaceutique à un patient. Le dispositif décrit dans cette invention comprend un boîtier extérieur; une cartouche d'aiguilles (524) logée dans le boîtier et contenant plusieurs aiguilles d'injection de médicament parallèles les unes aux autres; une cartouche de médicament logée dans le boîtier, laquelle cartouche contient un liquide et présente une ouverture scellable permettant d'accéder au liquide; un ensemble d'entraînement direct logé dans le boîtier et conçu pour s'emboîter dans la cartouche de médicament de manière à permettre l'expulsion d'une dose mesurée de liquide à travers l'ouverture; un ensemble levier logé dans le boîtier et conçu pour s'emboîter dans la cartouche d'aiguilles afin d'acheminer l'une des nombreuses aiguilles en partie à l'extérieur du boîtier jusque dans le corps du patient, pendant que le liquide pénètre dans la cartouche de médicament à travers l'ouverture scellable, et de retirer l'aiguille du corps du patient tout en stoppant la pénétration du liquide à travers l'ouverture scellable après administration de la dose mesurée de liquide par l'intermédiaire de ladite aiguille ; un moyen moteur installé dans le boîtier conçu pour entraîner l'ensemble d'entraînement direct et l'ensemble levier ; un moyen informatique conçu pour actionner l'ensemble d'entraînement direct et l'ensemble levier ; et un panneau de contrôle pour permettre à un utilisateur d'actionner le dispositif.

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