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Multiple injection syringe system

  • US 5,354,284 A
  • Filed: 06/09/1992
  • Issued: 10/11/1994
  • Est. Priority Date: 06/09/1992
  • Status: Expired due to Fees
First Claim
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1. A multiple injection syringe system, comprising:

  • a hypodermic needle cannula having proximal and distal ends;

    cartridge carrier means in which a plurality of fluid filled cartridges are loaded, said cartridge carrier means having a space therein for receipt of said needle cannula;

    a manifold coupled to said cartridge carrier means, said needle cannula releasably retained by said manifold such that the distal end of cannula projects from said manifold in spaced alignment with the cartridges of said cartridge carrier means, said manifold being rotated relative to said cartridge carrier means to cause a corresponding displacement of said cannula;

    means for moving said cannula towards and away from said cartridge carrier means, said cannula moved towards said carrier means such that the proximal end of said cannula is placed into fluid communication with a selected cartridge from the plurality of cartridges in said cartridge carrier means, and said cannula moved away from said carrier means and out of fluid communication with the selected cartridge;

    means coupled to said cartridge carrier means for expulsing the fluid contents of the selected cartridge so that an injection may be administered by way of the distal end of said cannula when said cannula is in fluid communication with said cartridge; and

    needle releasing means carried by said manifold to release the needle cannula from said manifold and to position said cannula to be received within and shielded by said cartridge carrier means at the space therein after the injection has been administered and said cannula has been moved out of fluid communication with the selected cartridge.

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