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Hypodermic jet injection kit

  • US 20030040715A1
  • Filed: 08/20/2002
  • Published: 02/27/2003
  • Est. Priority Date: 08/21/2001
  • Status: Active Grant
First Claim
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1. A hypodermic injector for injecting fluid from an ampule loaded in said injector from a plurality of ampules in sequence, each ampule having a sealed condition for containing injectate in a sealed container and an empty condition where the injectate was discharged from the ampule without the necessity of human contact with the ampule, said injector comprising:

  • a gasping mechanism having a grasping condition for grasping an ampule and holding the ampule to receive an injectate discharge force, and an open condition;

    a plunger device movable from a set condition to a discharge condition for applying discharge force to an ampule in the sealed condition to eject injectate from the ampule to render the ampule in the empty condition;

    a first biasing device having a cocked condition for storing a biasing force in said device and a released condition, said first biasing device discharging force to said plunger device to move said plunger device from the set condition to the discharge condition in response to the movement of said biasing device from the cocked condition to the release condition;

    a first cocking mechanism for moving said first biasing device from the release condition to the cocked condition;

    a release mechanism actuatable for releasing said biasing mechanism from the cocked condition to the released condition to effect the movement of said plunger device from the set condition;

    an ejector mechanism for ejecting an empty ampule from said grasping mechanism in the open condition, said ejector mechanism including an ejector member movable from a set condition to an eject condition for engaging and ejecting an ampule from said injector, and a second biasing device releasable from a cocked condition to a release condition to drive said ejector member to eject the ampule; and

    a second cocking mechanism for moving said second biasing device from 5 the released condition to the cocked condition.

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