The present invention typically is in the form of a needleless injector which includes the following components: (1) a needleless syringe installed in the injector for holding medication prior to injection, the syringe including an injection aperture at the forward end thereof; (2) a syringe plunger...http://www.google.com/patents/US5993412?utm_source=gb-gplus-sharePatent US5993412 - Injection apparatus
