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Method and apparatus for predicting and detecting ovulation

  • US 6,468,223 B2
  • Filed: 02/12/2001
  • Issued: 10/22/2002
  • Est. Priority Date: 02/12/2001
  • Status: Expired due to Fees
First Claim
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1. A method for determining the onset of ovulation in a female subject comprising:

  • a. providing an oral sensor;

    b. connecting the oral sensor to an electrical circuit comprising;

    (i) frequency generating oscillator means;

    (ii) frequency measurement means;

    (iii) data processing and control means;

    (iv) data storage means; and

    (v) data display means;

    c. contacting the oral sensor on a first day with the subject'"'"'s saliva until a stable frequency is indicated by the frequency measurement means;

    d. recording the first day'"'"'s frequency measurement;

    e. repeating steps (c) and (d) on a subsequent day to obtain a second frequency measurement;

    f. calculating the difference in frequency, df, between the first and the second day'"'"'s frequencies;

    g. recording the df calculated in step (f);

    h. repeating steps (e) through (g) on each successive day of the subject'"'"'s menstrual cycle to establish an historic baseline of the df value for each of the days;

    i. applying the baseline df values to an algorithm corresponding to predetermined patterns of df values for menstrual cycles;

    j. recording the baseline data from step (i) in the data storage means corresponding to the subject'"'"'s historical menstrual cycle;

    k. repeating steps (c) through (h) for each day in a subsequent menstrual cycle of the same subject and recording the data in the data storage means in association with the subsequent cycle;

    l. comparing the data obtained in step (k) with the data obtained in step (j) to determine the subject'"'"'s fertility state; and

    m. displaying data from the data storage means on the data display means corresponding to the subject'"'"'s fertility state in the menstrual cycle.

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