Automatic hypodermic syringe

• US 3,136,313 A
• Filed: 02/14/1961
• Issued: 06/09/1964
• Est. Priority Date: 10/27/1954
• Status: Expired due to Term

• Current Assignee: Adolf Nojd John, Gerold Fredriksson Rune, Gosta Enstrom Hans, Lundgren Rudolf A I
• Original Assignee: Adolf Nojd John, Gerold Fredriksson Rune, Gosta Enstrom Hans, Lundgren Rudolf A I
• Inventors: GOSTA ENSTROM HANS, GEROLD FREDRIKSSON RUNE, LUNDGREN RUDOLF A I, ADOLF NOJD JOHN
• Application Number:
  US04/089,261
• Time in Patent Office: 1,211 Days
• US Class Current: 604/139
• CPC Class Codes: A61M 2005/206 With automatic needle insertion
• CPC Class Codes: A61M 2005/2073 preventing premature release, e.g. by making use of a safety lock
• CPC Class Codes: A61M 2005/2407 from the rear
• CPC Class Codes: A61M 2005/247 with fixed or steady piercing means, e.g. piercing under movement of ampoule
• CPC Class Codes: A61M 2005/2488 via rotation, e.g. threads or bayonet
• 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 5/24 Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic ampoules or carpules A61J1/06
• CPC Class Codes: A61M 5/2459 upon internal pressure increase, e.g. pierced or burst A61M5/2429 takes precedence

Claims