Ampulla incorporating an injection syringe

• US 3,094,989 A
• Filed: 06/07/1961
• Issued: 06/25/1963
• Est. Priority Date: 06/10/1960
• Status: Expired due to Term

• Current Assignee: Ferdinand Stauffer
• Original Assignee: Ferdinand Stauffer
• Inventors: Stauffer, Ferdinand
• Application Number:
  US04/115,470
• Time in Patent Office: 748 Days
• US Class Current: 604/138
• CPC Class Codes: A61M 2005/2013 triggering of discharging means by contact of injector with patient body
• CPC Class Codes: A61M 2005/206 With automatic needle insertion
• CPC Class Codes: A61M 2005/3104 Caps for syringes without needle
• CPC Class Codes: A61M 2205/59 Aesthetic features, e.g. distraction means to prevent fears of child patients
• CPC Class Codes: A61M 5/2033 Spring-loaded one-shot injectors with or without automatic needle insertion multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287
• CPC Class Codes: A61M 5/283 by telescoping of ampoules or carpules with the syringe body
• CPC Class Codes: A61M 5/3287 Accessories for bringing the needle into the body; Automatic needle insertion A61M5/20, A61M5/31525 take precedence
• CPC Class Codes: A61M 5/3291 Shafts with additional lateral openings
• CPC Class Codes: A61M 5/46 having means for controlling depth of insertion

Claims

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.