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...http://www.google.de/patents/US6102896?utm_source=gb-gplus-sharePatent US6102896 - Disposable injector device
