Needleless syringe with prefilled cartridge

Details Needleless syringe with prefilled cartridge Needleless syringe with prefilled cartridge

A - Human Necessities

61

M

A61M 5/30 (2006.01)

Patent

CA 2407056

The invention provides a cartridge and nozzle assembly (10) having a nozzle (14) with a valve-receiving portion including a plurality of channels to facilitate flow of injectate to the nozzle orifice. Specifically, the assembly includes a cartridge (12) having a plunger (24) disposed at a rearward end thereof, with an inner portion having a throat (21) at a forward portion thereof, the cartridge further including a generally laterally extending interface surface.

La présente invention concerne un ensemble (10) constitué d'une cartouche et d'un nez d'injection présentant un buse d'injection (14) avec une portion de réception de soupape comprenant une pluralité de canaux en vue de faciliter l'écoulement de la substance à injecter vers l'orifice de la buse d'injection. De manière spécifique, l'ensemble comprend une cartouche (12) présentant un piston (24) disposé vers l'extrémité arrière de celle-ci, avec une portion interne présentant une gorge (21) à la portion avant de celle-ci, la cartouche comportant en outre une surface de contact s'étendant latéralement de manière générale.

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