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Cassette for a hidden injection needle

  • US 9,925,336 B2
  • Filed: 04/24/2012
  • Issued: 03/27/2018
  • Est. Priority Date: 05/20/2008
  • Status: Active Grant
First Claim
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1. A system for injecting a fluid medicament into a patient which comprises:

  • a motorized drive mechanism;

    a hypodermic syringe with a needle, wherein the syringe is pre-filled with the fluid medicament and the syringe includes a stopper for expelling the medicament from the syringe through the needle;

    a cassette for receiving and holding the hypodermic syringe, the syringe movable relative to the cassette between a first position and a second position, the cassette comprising an inner sleeve for holding the syringe, an outer sleeve for supporting the inner sleeve, the inner sleeve moveable relative to the outer sleeve between the first position and the second position, and a detent formed by the outer sleeve for retaining the syringe in the first position; and

    a bar operated by the motorized drive mechanism for releasing the detent;

    wherein the needle is concealed inside the cassette in the first position, and wherein the needle extends from the cassette in the second position for injection of the medicament.

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