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Safety catheter assembly having safety stop push button

  • US 5,501,675 A
  • Filed: 12/27/1994
  • Issued: 03/26/1996
  • Est. Priority Date: 12/27/1994
  • Status: Expired due to Term
First Claim
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1. A catheter and safety introducer needle assembly, comprising:

  • a catheter having a catheter hub with an inside and an outside;

    a generally hollow barrel having a proximal end and a distal end;

    a needle having a sharp distal tip and a proximal end;

    a needle hub affixed adjacent to the proximal end of the needle and movably disposed in the barrel;

    a spring disposed about the needle and extending between the needle hub and the distal end of the barrel;

    an activation latch having a top and a bottom and movably mounted adjacent to the distal end of the barrel and adapted for selective engagement with the needle hub to hold the needle hub adjacent to the distal end of the barrel against the bias of the spring such that the needle extends beyond the distal end of the barrel and through the catheter with the catheter hub adjacent to the distal end of the barrel; and

    a projection extending from the activation latch for engagement with the catheter hub to prevent movement of the activation latch when the catheter hub is adjacent to the distal end of the barrel.

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