Ampulla incorporating an injection syringe

Claim 1

A COMBINED AMPULLA AND INJECTION SYRINGE, COMPRISING A CYLINDRICAL BODY ENCLOSING A LIQUID-FILLED CHAMBER CONSTITUTED BY A REAR CYLINDRICAL SECTION AND A FORWARDLY TAPERING FRONT SECTION OPENING AT ITS FRONT END INTO THE OUTER SURFACE OF THE BODY, A PISTON CLOSING THE REAR END OF THE LIQUID-FILLED CHAMBER SLIDINGLY CARRIED INSIDE THE CYLINDRICAL SECTION OF THE BODY AND PROVIDED WITH AN AXIAL BORE, A ROD ADAPTED TO MOVE INSIDE THE BORE BETWEEN A NORMAL POSITION AND A FORWARDLY SHIFTED POSITION AND PROVIDED WITH A BLIND BORE, A HOLLOW NEEDLE FITTED INSIDE SAID BLIND BORE OF THE ROD AND THE TIP OF WHICH REGISTERS NORMALLY WITH THE OPENING OF THE TAPERING SECTION, MEANS ADAPTED TO COMMUNICATE THE HOLLOW OF SAID NEEDLE WITH SAID CHAMBER IN THE SHIFTED POSITION THEREOF, A CONTROL SLEEVE SLIDABLY MOUNTED ON THE CYLINDRICAL BODY, MEANS CONNECTING SAID ROD TO SAID SLEEVE SO THAT ON THE FORWARD MOVEMENT THEREOF, SAID SLEEVE IS ADAPTED TO URGE THE ROD FORWARDLY ALONG THE PISTON BORE TO MAKE THE NEEDLE PROJECT FORWARDLY OF THE OPENING OF THE TAPERING SECTION INTO ITS OPERATIVE POSITION, A COMPRESSION SPRING SUBJECTED TO THE FORWARD MOVEMENT OF THE CONTROL SLEEVE, A MEMBER INSERTED BETWEEN SAID SPRING AND THE PISTON AND ADAPTED TO BE MOVED FORWARDLY BY SAID COMPRESSION SPRING TO MAKE THE PISTON MOVE FORWARDLY AND URGE THE LIQUID IN THE CHAMBER INTO THE FORWARDLY PROJECTING NEEDLE, AND AN ELASTIC SYSTEM HAVING MEANS NORMALLY ENGAGING SAID ROD AND SAID BODY FOR RELEASABLY LOCKING SAID ROD AND LAST-MENTIONED MEMBER IN POSITION AND RENDERED ADAPTED TO RELEASE SAID ROD AND MEMBER UPON FORWARD MOVEMENT OF THE SLIDING CONTROL SLEEVE TO OBTAIN IN SUCCESSION THE FORWARD PROJECTION OF THE NEEDLE AND THE FORWARD MOVEMENT OF THE PISTON.