Device and method for determining a fertile phase of a woman by ascertaining a CO;partial pressure in a respiratory gas of the woman
First Claim
1. A device for determining a fertile phase of a woman by ascertaining a CO2 partial pressure in a respiratory gas of the woman in several consecutive breaths, comprising:
- an inlet for receiving the respiratory gas,an outlet, a sample chamber, into which the respiratory gas is conducted,a measuring module with a measuring element with which a CO2 concentration in the respiratory gas in the sample chamber is measurable,a processor for processing measured data obtained by the measuring module, andat least one output unit for outputting a result of the measured data,wherein the device is embodied as a hand-held device and an algorithm is stored in the processor, with which with a measurement based on several immediately consecutive breaths a predetermined reproducibility criterion regarding an end expiratory CO2 partial pressure of the respiratory gas is testable,wherein, if the reproducibility criterion is met, the at least one output unit outputs and/or signals and/or displays whether a fertile phase applies,wherein the predetermined reproducibility criterion is met when the measured data based on several immediately consecutive breaths are within a predetermined tolerance range; and
wherein the algorithm based on the measured data of a cycle calculates a base line for the end expiratory CO2 partial pressure in a follicle phase outside the fertile phase.
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Abstract
The invention relates to a device (1) for determining a fertile phase of a woman by ascertaining a CO2 partial pressure in a respiratory gas of the woman in several consecutive breaths, comprising an inlet for receiving the respiratory gas, and an outlet, a sample chamber (2), into which the respiratory gas can be conducted, a measuring module (3) with a measuring element (4) with which a CO2 concentration in the respiratory gas in the sample chamber (2) can be measured, optionally a pressure sensor (5) for measuring an air pressure, a processor (7) for processing measured data obtained by means of the measuring module (3) and the pressure sensor (5), and at least one output unit (9) for outputting a result of the measured data. So that the method can be carried out by a woman herself quickly and nevertheless with high precision, it is provided according to the invention that the device (1) is embodied as a hand-held device and an algorithm is stored in the processor (7), with which with a measurement based on several immediately consecutive breaths a predetermined reproducibility criterion regarding an end expiratory CO2 partial pressure of the respiratory gas can be tested, wherein, if the reproducibility criterion is met, the at least one output unit (9) outputs and/or signals and/or displays whether a fertile phase applies. Furthermore, the invention relates to a method for determining a fertile phase of a woman by ascertaining an end expiratory CO2 partial pressure in a respiratory gas and comparison of the measured data thus obtained with measured data in the follicle phase outside the fertile phase.
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Citations
30 Claims
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1. A device for determining a fertile phase of a woman by ascertaining a CO2 partial pressure in a respiratory gas of the woman in several consecutive breaths, comprising:
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an inlet for receiving the respiratory gas, an outlet, a sample chamber, into which the respiratory gas is conducted, a measuring module with a measuring element with which a CO2 concentration in the respiratory gas in the sample chamber is measurable, a processor for processing measured data obtained by the measuring module, and at least one output unit for outputting a result of the measured data, wherein the device is embodied as a hand-held device and an algorithm is stored in the processor, with which with a measurement based on several immediately consecutive breaths a predetermined reproducibility criterion regarding an end expiratory CO2 partial pressure of the respiratory gas is testable, wherein, if the reproducibility criterion is met, the at least one output unit outputs and/or signals and/or displays whether a fertile phase applies, wherein the predetermined reproducibility criterion is met when the measured data based on several immediately consecutive breaths are within a predetermined tolerance range; and wherein the algorithm based on the measured data of a cycle calculates a base line for the end expiratory CO2 partial pressure in a follicle phase outside the fertile phase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 30)
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18. A method for determining a fertile phase of a woman by ascertaining an end expiratory CO2 partial pressure in a respiratory gas of the woman and comparison of measured data thus obtained with measured data in a follicle phase outside the fertile phase, wherein with a measurement in a sample chamber based on several immediately consecutive breaths a reproducibility criterion predetermined with respect to the end expiratory CO2 partial pressure of the respiratory gas is tested and at least one output unit outputs a signal when the reproducibility criterion for a predetermined number of breaths has been achieved and it is output and/or signaled and/or displayed by the output unit whether a fertile phase applies,
wherein the reproducibility criterion is met when the measured data based on the predetermined number of consecutive breaths are within a predetermined tolerance range; - and
wherein a base line for the end expiratory CO2 partial pressure in the follicle phase outside the fertile phase is calculated based on the measured data of a cycle. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification