Importance

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Abstract

An injector device for a syringe and assembly is disclosed which enables the user to inject a syringe needle to a predetermined depth. The device includes a pipe union bearing upper retaining arms that are adapted to interfit with a plunger of a standard injector syringe. The pipe union is slidably mounted along an inner tube through which the syringe and needle are projected. The pipe union and an attached screw nut form upper and lower shoulders along the inner tube. The pipe union is spring loaded for movement along the inner tube, and this movement is set between the upper and lower shoulders by means of a rotatable firing hammer. The hammer fixes the pipe union and attached syringe in the upper, spring loaded position, and when triggered, the hammer releases the pipe union to the lower position and fires the syringe needle into the user. A lower adjustable tube partly encloses the inner tube, and provides a lower flat surface that contacts the user's body and enables the needle to be applied at the desired location.

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First Claim