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Method and apparatus for analyzing uterine electrical activity from surface measurements for obstetrical diagnosis

  • US 5,776,073 A
  • Filed: 04/25/1997
  • Issued: 07/07/1998
  • Est. Priority Date: 05/19/1994
  • Status: Expired due to Term
First Claim
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1. A method for characterizing uterine electrical activity, comprising:

  • a. applying action potential measuring electrodes to an abdominal or vaginal (or cervical) surface of a patient;

    b. acquiring analog electromyographic signals transmitted through said electrodes, at a sampling frequency between about 0.5 and 1 kHz, for a duration of time sufficient to record at least one burst of action potentials;

    c. amplifying said electromyographic signals;

    d. storing acquired electromyographic signals, including at least one burst of action potentials;

    e. analyzing uterine activity indicating parameters from at least one burst of action potentials within the stored electromyographic signals; and

    f. characterizing uterine activity of said patient based on said parameter analysis.

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