Injector for use in injecting a liquid

Details Injector for use in injecting a liquid Injector for use in injecting a liquid

A - Human Necessities

61

M

128/84

A61M 5/00 (2006.01) A61M 5/315 (2006.01)

Patent

CA 1237037

ABSTRACT OF THE DISCLOSURE An injector such as a hypodermic syringe and the like is improved in that an amount of injection each time thereof is mechanically determined by a provision of a stopper means disconnectably attached to a plunger of the injector, which stopper means and the plunger are engaged with each other through a projection-recess engagement thereof, in which engagement the stopper means acts also as a wedge-like means inserted between the plunger and a barrel of the injector to make it possible that the stopper means abutting against a rear end of the barrel at a time when the injection operation is completed pre- vents the plunger from being advanced beyond it predeter- mined position, under the effect of its wedge action.

487539

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