Prefilled needle assisted jet injector

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/30 (2006.01)

Patent

CA 2595730

A jet injector that includes a prefilled syringe (18). The syringe includes a fluid chamber (22) that contains a medicament. The syringe also has an injection-assisting needle (24), and a plunger is movable within the fluid chamber. A housing is configured for allowing insertion of the needle to a penetration depth. An energy source is configured for biasing the plunger to produce an injecting pressure in the medicament in the fluid chamber of between about 80 and 1000 p.s.i. to jet inject the medicament from the fluid chamber through the needle to an injection site.

L'invention concerne un injecteur comprenant une seringue préremplie (18). La seringue comprend une chambre à fluide (22) contenant un médicament. La seringue présente également une aiguille d'assistance à l'injection (24) et un piston peut se déplacer dans la chambre à fluide. Un logement est conçu pour permettre l'insertion de l'aiguille à une certaine profondeur de pénétration. Une source d'énergie est conçue pour solliciter le piston de manière à produire une pression d'injection au niveau du médicament contenu dans la chambre à fluide comprise entre environ 80 et 1000 p.s.i. afin d'injecter le médicament de la chambre à fluide vers un site d'injection en passant par l'aiguille.

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