Needle tip guard for percutaneous entry needles

  • US 8,414,539 B1
  • Filed: 12/27/2011
  • Issued: 04/09/2013
  • Est. Priority Date: 12/27/2011
  • Status: Expired due to Fees
First Claim
Patent Images

1. An intravenous catheter assembly comprising:

  • a catheter hub with a catheter tube;

    a needle having a needle shaft, a proximal end attached to a needle hub, a sharpened distal end, and a change in profile;

    a needle guard slidably disposed about said needle shaft, said needle guard comprising a needle trap, the needle trap comprising an extending arm and a projection for releasably holding the catheter hub in a ready to use position;

    the needle guard further comprising an inner chamber and a slot for fixedly attaching the needle trap into the slot;

    wherein the projection is free to move to allow the catheter hub to separate from the needle guard when the needle trap is no longer biased by the needle; and

    an opening on the needle guard for interacting with the change in profile to limit distal advancement of the needle guard along the needle.

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