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Catheter insertion device

DC CAFC
  • US 8,540,728 B2
  • Filed: 09/28/2012
  • Issued: 09/24/2013
  • Est. Priority Date: 07/04/2002
  • Status: Expired due to Fees
First Claim
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1. A catheter insertion device comprising:

  • a catheter hub comprising an interior cavity, an opening at a proximal end, and a catheter tube attached thereto and extending from a distal end;

    a needle having a needle shaft defining a needle axis projecting distally of an end of a needle hub, said needle projecting through the catheter tube and comprising a needle tip;

    a valve sized and shaped to obstruct fluid flow comprising a wall surface comprising a slit positioned inside the interior cavity of the catheter hub and in contact with the interior cavity;

    said valve remaining inside the interior cavity when the needle is removed from the catheter tube and the catheter hub and abuts a shoulder formed in the interior cavity of the catheter hub;

    a valve actuating element slidingly disposed in the catheter hub to actuate the valve, the valve actuating element comprising a nose section having a tapered end for pushing the valve to open the slit of the valve and a plunger end having at least two plunger elements extending proximally of the nose section and having a gap therebetween to permit fluid flow to flow therethrough;

    the two plunger elements being sufficiently rigid to transfer a distally directed force to the nose section to push the valve to open the slit;

    a needle protective device spaced from the needle tip in a ready position and movable relative to the needle tip to a protective position, at least in part, distally of the needle tip to prevent unintended needle sticks.

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