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Disposable double pointed injection needle, and an insulin injection system comprising a disposable double pointed injection needle

  • US 8,075,522 B2
  • Filed: 04/01/2005
  • Issued: 12/13/2011
  • Est. Priority Date: 05/31/2000
  • Status: Active Grant
First Claim
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1. A safety pen-needle assembly comprising:

  • a. a needle hub;

    b. a needle having a cannula having a first portion with a sharpened distal end, the first portion protruding distally from the hub and a second portion protruding proximally from the hub and having an end for piercing a sealable membrane;

    c. a sliding cover that slides over the cannula to conceal the sharp end of the first portion of the cannula, the cover being capable of sliding in a proximal direction away from the sharp end thereby exposing the sharp end so that it may be used to penetrate a portion of skin on a patientd. a biasing means for keeping the cover over the sharp end of the first portion unless a force is exerted to slide the cover proximally away from the sharp end of the first portion;

    e. a locking means for irreversibly locking the cover over the sharpened end of the first portion after an injection has been administered with the needle;

    f. a visual indicating means for visually indicating that the needle has been previously used to administer an injection.

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