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Self-sealing injection reservoir

  • US 4,840,615 A
  • Filed: 03/14/1988
  • Issued: 06/20/1989
  • Est. Priority Date: 09/30/1985
  • Status: Expired due to Term
First Claim
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1. A self-sealing injection reservoir adapted to be punctured by a hypodermic needle, the reservoir comprising:

  • a body defining a chamber for holding liquid, said body including a base;

    a substantially dome-shaped member made of elastic material and having a concave interior side which is under compression as a result of having been manufactured into a substantially dome-shaped configuration and thereafter inverted, the dome shaped member comprising at least an interior wall of the chamber and being disposed in a locaion of the chamber which is adapted to be punctured by the hypodermic needle;

    duct means for conducting liquid out of the chamber, andguard means incorporated in the chamber for preventing accidental puncture of the base with the hypodermic needle.

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