Method and apparatus for location of a catheter tip

  • US 5,749,835 A
  • Filed: 01/09/1997
  • Issued: 05/12/1998
  • Est. Priority Date: 09/06/1994
  • Status: Expired due to Fees
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First Claim
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1. A method for determining the location of a tip of a catheter, inside biological tissue, wherein the catheter includes a distal end and a proximal end and a lumen positioned therebetween, the method comprising the steps of:

  • a) providing a source;

    b) providing a detector locked within the lumen of the catheter remote from the distal end of the catheter, the detector operable in generating a voltage when the source is proximate the detector;

    c) trimming the distal end of the catheter as to define a trimmed distal end;

    d) unlocking the detector from within the lumen of the catheter;

    e) positioning the detector proximate the trimmed distal end of the catheter;

    f) positioning the trimmed distal end of the catheter within the biological tissue; and

    g) placing the source proximate the detector to locate the trimmed distal end of the catheter.

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