Needleless syringe for injecting a liquid contained a...

Details Needleless syringe for injecting a liquid contained a... Needleless syringe for injecting a liquid contained a...

A - Human Necessities

61

M

A61M 5/30 (2006.01) A61M 5/303 (2006.01)

Patent

CA 2398552

The invention relates to the technical field of needleless syringes for injecting a liquid active principle. It concerns the production of a simple device for in particular providing smooth injections in the initial stage. Said syringe comprises a reservoir (3) sealed with mobile closure elements (4, 5) enclosing the liquid (6), the reservoir being initially isolated from the injection system which is so designed that it comprises at least two peripheral injection conduits (8) located outside a receptacle (7) comprising a blind bore (10) which receives the downstream closure element (5) such that the inlets (8a) of the conduits are cleared.

La présente invention se situe dans le domaine des seringues sans aiguille pour l'injection de principe actif liquide Elle vise à la réalisation d'un dispositif simple et permettant notamment de réaliser des injections sans saccades en début de fonctionnement. Ladite seringue comporte un réservoir (3) fermé par des obturateurs déplaçables (4, 5) et emprisonnant le liquide (6), le réservoir étant initialement isolé d'un système d'injection qui est tel qu'il comporte au moins deux conduits périphériques (8) d'injection situés à l'extérieur d'un réceptacle (7) comportant un alésage borgne (10) qui reçoit l'obturateur aval (5) de façon que les entrées (8a) des conduits soient dégagées. Image

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