Reloadable injector

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/20 (2006.01) A61M 5/32 (2006.01) A61M 5/24 (2006.01)

Patent

CA 2168670

A reloadable injector (10) comprises a reusable power pack assembly (12) for multiple injection operations. The power pack assembly (12) includes an outer body (16) and an energy releasing assembly (18) disposed within the body (16). The energy releasing assembly (18) is capable of providing multiple energy releasing strokes. A disposable cartridge assembly (14) is engageable with the power pack assembly (12) and forms an injection assembly therewith. The cartridge assembly (14) includes a housing (88) in which a charge of medicament (90) and a needle (96) is contained. A plunger (94) disposed within the housing (88) for forcing the medicament (90) through the needle (96). The cartridge assembly (14) receives energy from the power pack (12) during one of the energy releasing strokes to enable the needle (96) to project from the protected position to an unprotected position from the housing (88) and to enable the plunger (94) to force medicament (90) through the needle (96).

Un injecteur rechargeable (10) comprend un ensemble bloc d'alimentation réutilisable (12) pour effectuer de multiples opérations d'injection. L'ensemble bloc d'alimentation (12) comprend un corps externe (16) et un ensemble (18) libérant de l'énergie placé à l'intérieur du corps (16). L'ensemble (18) libérant de l'énergie peut produire plusieurs courses de libération d'énergie. Un ensemble cartouche jetable (14) peut venir en contact avec l'ensemble bloc d'alimentation (12) avec lequel il forme un ensemble d'injection. L'ensemble cartouche (14) comprend un logement (88) dans lequel se trouve une charge de médicament (90) et une aiguille (96). Un piston plongeur (94) se trouve dans le logement (88) et pousse le médicament (90) à travers l'aiguille (96). L'ensemble cartouche (14) reçoit l'énergie du bloc d'alimentation (12) durant l'une des courses de libération d'énergie afin de permettre à l'aiguille (96) de dépasser du logement (88), d'une position protégée à une position non protégée, et de permettre au piston plongeur (96) de pousser le médicament (90) dans l'aiguille (96).

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