Disposable injector device

Details Disposable injector device Disposable injector device

1999-09-08

2000-08-15

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604124, 604232, A61M 500

Patent

active

061028967

ABSTRACT:
The present invention is a single use injector device for injecting parenteral medications which operates by hand force. The injector device has a plunger section and a base. As hand force is applied to a moving portion of the plunger section, break tabs or a snap ring resist its motion toward the patient's skin surface. The break tabs or snap ring release abruptly as the hand force reaches a snap point. The motion of the moving portion then drives the medication through the skin surface and into the body of the patient. If the medication is in liquid form, the actual injection may be carried out through a hollow needle attached to the plunger section. Alternatively, the suddenly increased pressure of the medication at the snap point may be used to form a liquid jet for needleless injection. Part or all of the medication may be contained in a glass needle which dissolves in the body after injection. The injector device requires little training to use, reduces perceived pain, and improves injection safety.

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