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Syringe flange adapter and method

  • US 5,554,133 A
  • Filed: 04/13/1995
  • Issued: 09/10/1996
  • Est. Priority Date: 01/18/1994
  • Status: Expired due to Term
First Claim
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1. A syringe comprising:

  • a barrel having a longitudinal passage extending through the barrel and a flange;

    a connector adjacent one end of the barrel for attaching a cannula to the barrel and said flange being adjacent another end of the barrel and having a forward face facing said one end of the barrel;

    a plunger slidable in the passage of the barrel to expel flowable material from the barrel and having a pressure pad outside the passage adjacent one end of the plunger;

    an adapter having a passage extending through the adapter and a counterbore, said adapter being shorter than said barrel, said passage of the adapter being sized and adapted to allow the adapter to be slid over said connector and said one end of the barrel but not over the flange to the forward face of the flange, said counterbore being sized and adapted to receive the flange, said adapter including a collar extending circumferentially of the barrel and radially beyond the flange to form finger pads when the adapter is on the barrel and engaging the flange; and

    said adapter including a section which is constructed and adapted to yield radially outwardly as the adapter is moved onto the barrel and toward said flange from said one end of the barrel, said section gripping the barrel.

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