Abstract: In a method for detecting a physiological signal at least one ventilation parameter is measured. The device for detecting a physiological signal has at least one sensor for measuring a ventilation parameter and a control unit for the ventilation pressure. A device for monitoring at least one ventilation parameter while respiratory gas is being supplied to a patient is provided with a sensing device for detecting the behavior of the ventilation parameter as a function of time.

Abstract: A sensor for measuring at least one body parameter, particularly blood and/or tissue parameters, is used for carrying out the measurements of electromagnetic radiation in the transmission or reflection methods, wherein the sensor uses at least one LED as a source of electromagnetic radiation. At least one photodetector is used as the receiving element. At least one LED is used in a non-invasive measurement of the parameters for ensuring a sufficiently high residual intensity of the radiation received by the photodetector and transmitted or reflected by the blood and/or tissue, wherein the LED has a light intensity of at least 200 millicandela and/or a light yield of at least 2 lumen/watt.

Abstract: The device is used to detect the gravity of an illness of a living being and the method is used to control the corresponding detection device. At least one sensor (1) for non-invasive measurement of at least one signal dependent upon the autonomous regulation of the cardiovascular system of the living being is connected to an evaluation device (2). The evaluation device (2) is provided with a calculation unit (4) for converting the signal into a state parameter. The evaluation unit also has an index determining device (6) for determining at least one cumulative system parameter. A comparison device (8) that analyses the index while considering other parameters of the living being is connected to an output device (9) for generating the detected gravity of the illness.

Abstract: In a method for detecting a physiological signal at least one ventilation parameter is measured. The device for detecting a physiological signal has at least one sensor for measuring a ventilation parameter and a control unit for the ventilation pressure. A device for monitoring at least one ventilation parameter while respiratory gas is being supplied to a patient is provided with a sensing device for detecting the behavior of the ventilation parameter as a function of time.

Abstract: A ventilator and a method for detecting an obstruction during episodes of apnea by an additional pressure increment serve to detect episodes of obstructive apnea a respiratory gas source, a connecting line, and a patient interface are used to carry out the ventilation. The respiratory gas source has a control system for generating an incremental pressure change and at least one sensor for flow measurement. The sensor is connected to an evaluation unit that evaluates the flow pattern. A comparison of the flow pattern with the pattern of a pressure increment is carried out, and a ventilation state is automatically detected on the basis of the flow pattern.