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Intradermal injector

  • US 9,333,309 B2
  • Filed: 06/22/2014
  • Issued: 05/10/2016
  • Est. Priority Date: 02/11/2002
  • Status: Expired due to Term
First Claim
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1. An injection device, comprising:

  • a chamber configured for containing a substance to be injected;

    a needle operatively associated with the chamber and having a length sufficient to deliver the substance to an injection site; and

    a collar surrounding the needle and defining a collar cavity, the collar having a peripheral forward skin-contacting surface that surrounds the needle, is discontinuous, and is radially spaced from the needle and injection site by an area having a diameter of at least about 4 mm;

    wherein the peripheral forward skin-contacting surface is the part of the injection device that is the most radially spaced from the injection site and contacts a skin surface that is radially spaced from the injection site when the injection device is pressed against the skin surface for an injection.

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