Surgery – Diagnostic testing – Monitoring fertility cycle
Reexamination Certificate
2002-07-29
2008-10-21
Hindenburg, Max (Department: 3736)
Surgery
Diagnostic testing
Monitoring fertility cycle
C600S346000
Reexamination Certificate
active
07438691
ABSTRACT:
A method and device to predict ovulation in a female human by measuring changes in the concentration of a number of ions in eccrine sweat is disclosed. The concentration, or changes in concentration, of one or more ions are determined throughout the day and analyzed against predetermined patterns in order to predict ovulation one to five days in advance. This permits the user to more accurately determine commencement of the fertile phase, which for female humans is generally considered to be about four days prior to ovulation to one day after ovulation. The concentration of the ions measured include sodium (Na+), potassium (K+), ammonium (NH4+), calcium (Ca2+), chloride (Cl−) and nitrate (NO3−). To further increase the accuracy of the reading, a large number of readings can be obtained throughout a day and statistically analyzed to determine the change over time. In addition, the concentration of two or more ions can be obtained to increase accuracy. Ratiometric measurements between two or more ions can be determined to increase accuracy and account for ion accumulation on the skin. Ratiometric measurements between ammonium (NH4+) and calcium (Ca2+) have been found to provide more distinct patterns because the concentration of these two ions change in opposite directions during the relevant period preceding ovulation.
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Blakely , Sokoloff, Taylor & Zafman LLP
Foreman Jonathan M
HealthWatchSystems, Inc.
Hindenburg Max
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