Syringe

Claim 1

A DISPOSABLE HYPODERMIC SYRINGE FOR USE IN ADMINISTERING FRACTIONAL CUBIC CENTIMETER DOSAGES COMPRISING A HOLLOW BODY, SAID BODY HAVING A NECK AND A DEFORMABLE OUTER CHAMBER, SAID OUTER CHAMBER BEING CONNECTED TO SAID NECK ADJACENT ONE END THEREOF, THE OTHER END OF SAID NECK BEING OPEN, SAID NECK HAVING A PASSAGEWAY THERETHROUGH, A VARIABLE VOLUME MEDICAMENT RECEPTACLE INTERIOR OF SAID BODY AND SPACED FROM SAID DEFORMABLE CHAMBER, SAID RECEPTACLE HAVING AN OPENING THEREIN COMMUNICATING WITH SAID OPEN END OF SAID NECK THROUGH SAID PASSAGEWAY, A FRANGIBLE SEAL CLOSING SAID RECEPTACLE OPENING, MEDICAMENT WITHIN SAID RECEPTACLE, LIQUID FILLING SAID SPACING BETWEEN SAID RECEPTACLE AND SAID DEFORMABLE CHAMBER, AND A DOUBLE ENDED HYPODERMIC NEEDLE AXIALLY MOVABLE WITHIN SAID NECK, ONE END OF SAID NEEDLE BEING ADAPTED TO PENETRATE SAID SEAL TO COMMUNICATE WITH SAID MEDICAMENT, SAID RECEPTACLE COMPRISING A TUBE EXTENDING WITHIN SAID DEFORMABLE CHAMBER, SAID TUBE BEING SEALED AT ITS OUTER PERIPHERAL SURFACE TO THE INNER PERIPHERAL SURFACE OF SAID PASSAGEWAY, SAID TUBE BEING OPEN AT AN END REMOTE FROM SAID FRANGIBLE SEAL, A PISTON POSITIONED ADJACCENT SAID REMOTE OPEN END AND AXIALLY DISPLACEABLE WITHIN SAID TUBE TOWARD SAID FRANGIBLE SEAL.