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Safety catheter

  • US 4,828,548 A
  • Filed: 12/31/1987
  • Issued: 05/09/1989
  • Est. Priority Date: 03/16/1987
  • Status: Expired due to Fees
First Claim
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1. Apparatus for the safe disposal of a medical needle comprising:

  • a. container means containing slidable piston means;

    b. sight chamber means mounted on one side of said piston means;

    c. said needle attached at its proximal end to said sight chamber means and communicating with the interior of said chamber, said needle extending out of said container means;

    d. hollow catheter means outside of said container means having said needle passing therethrough for the penetration of a blood vessel of a patient to facilitate insertion of the distal end of said catheter means;

    e. sealing means mounted on the proximal end of said catheter means for removably attaching said catheter means to said container means so that said needle extends through said sealing means into said catheter means and out of the distal end of said scatheter means; and

    f. means within said container means for driving said piston means in the direction of retracting said needle into said container means, said sealing means including means for preventing said piston means from being retracted and upon separation of said sealing means from said container means after use of said needle releasing said piston means to permit retraction of said piston means whereby said needle is safely sheathed for disposal after use.

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