Needle-free injection device with nozzle auto-disable

Details Needle-free injection device with nozzle auto-disable Needle-free injection device with nozzle auto-disable

A - Human Necessities

61

M

A61M 5/30 (2006.01)

Patent

CA 2705585

A nozzle assembly for a needle-free injection device. The nozzle assembly includes a nozzle body including an injectate chamber and one or more outlet orifices and a plunger configured to move through the injectate chamber toward the one or more outlet orifices. In some embodiments, the plunger includes a first portion and a second portion removably joined by a frangible region. In some embodiments, the plunger includes extensions configured to couple the plunger to a drive assembly of a needle-free injection device.

L'invention concerne un embout pour un dispositif d'injection sans aiguille. L'embout comprend un corps d'embout comprenant une chambre pour substance à injecter et un ou plusieurs orifices de sortie, et un piston plongeur configuré pour se déplacer à travers la chambre pour substance à injecter vers un ou plusieurs orifices de sortie. Dans certains modes de réalisation, le piston plongeur comprend des première partie et deuxième parties reliées de manière amovible par une zone fragile. Dans certains modes de réalisation, le piston plongeur comprend des prolongements configurés pour coupler le piston plongeur à un ensemble d'entraînement d'un dispositif d'injection sans aiguille.

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