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Adjustable injection length pen needle

  • US 5,944,700 A
  • Filed: 09/26/1997
  • Issued: 08/31/1999
  • Est. Priority Date: 09/26/1997
  • Status: Expired due to Term
First Claim
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1. A pen needle assembly comprising:

  • a hub having an outer surface with a groove and a double-ended cannula having a distal point;

    an extender movably mounted on said hub between a plurality of positions, said extender including an inner surface with a protrusion that travels in said groove as said extender moves between said plurality of position, wherein at each position said extender covers a predetermined portion of said cannula; and

    means for moving said extender on said hub between said plurality of positions.

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