Hypodermic injection apparatus

• US 2,960,087 A
• Filed: 02/16/1954
• Issued: 11/15/1960
• Est. Priority Date: 02/16/1954
• Status: Expired due to Term

• Current Assignee: Huybert Uytenbogaar Johannes W
• Original Assignee: Huybert Uytenbogaar Johannes W
• Inventors: HUYBERT UYTENBOGAAR JOHANNES W
• Application Number:
  US03/410,662
• Time in Patent Office: 2,464 Days
• US Class Current: 604/144
• CPC Class Codes: A61M 2005/206 With automatic needle insertion
• CPC Class Codes: A61M 2005/3112 Incorporating self-aspirating means, e.g. to provide flashback
• CPC Class Codes: A61M 5/2053 Media being expelled from injector by pressurised fluid or vacuum for infusion A61M5/145, A61M5/155
• CPC Class Codes: A61M 5/28 Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
• CPC Class Codes: A61M 5/31555 by purely axial movement of dose setting member, e.g. during setting or filling of a syringe
• CPC Class Codes: A61M 5/3156 using volume steps only adjustable in discrete intervals, i.e. individually distinct intervals
• CPC Class Codes: A61M 5/31563 interacting with a displaceable stop member
• CPC Class Codes: A61M 5/326 Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user

Claims