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Method and apparatus for inserting and retaining an epidural catheter

  • US 4,973,305 A
  • Filed: 12/08/1989
  • Issued: 11/27/1990
  • Est. Priority Date: 12/08/1989
  • Status: Expired due to Fees
First Claim
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1. Apparatus for introducing into and maintaining a catheter in a patient'"'"'s epidural space comprising:

  • a. a hollow needle having means adapted for the puncture of an epidural space and a bore sized to permit the introduction of a catheter through said bore into the patient'"'"'s epidural space;

    b. a two-stage catheter having(1) a shortened first stage sized to fit saidbore;

    (2) an epidural end and an attachment end; and

    (3) brightly colored indicia, marking the length of said needle relative to the epidural end of said catheter;

    c. a retention balloon operatively attached at said epidural end, a pilot balloon disposed to operate outside the patient'"'"'s body and having fluid communication with said retention balloon; and

    d. means for attaching said catheter to the source of medication.

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