Patent ID: 9392997
Filing Date: 2016-07-19
CPC Classification: A61B

Claim Text:
1. A device for determining a fertile phase of a woman by ascertaining a CO 2 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 CO 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 CO 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 CO