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Tissue discrimination and applications in medical procedures

  • US 6,760,616 B2
  • Filed: 05/18/2001
  • Issued: 07/06/2004
  • Est. Priority Date: 05/18/2000
  • Status: Expired due to Term
First Claim
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1. A method of determining whether a conductive element of a probe is located adjacent to a characterized body tissue comprising the steps of:

  • a) applying an electrical signal to the conductive element;

    b) determining characteristics of the applied signal, including a phase angle; and

    c) determining whether the conductive element of a probe is located adjacent to a characterized body tissue based on the phase angle of the applied signal, wherein said characterized body tissue comprises one of nerve tissue, prostate gland tissue, and annulus tissue.

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