Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Zf Friedrichshafen Ag

Christian Weigand

Robert Couronne

Rainer Haevescher

Andreas Tobola

Michaela Benz

Sergey Ershov

Robert Couronné

Fabio Ciancitto

Hans-Josef Gassmann

Christian Douniama

Holger Wentzlaff

Thomas Norgall

A device for detecting a vital parameter is described, comprising: an optoelectronic sensor arrangement for detecting the vital parameter by means of light remission at a finger, wherein the optoelectronic sensor arrangement has a first light source for generating light in a visible wavelength range, a second light source for generating light in a non-visible wavelength range and a light-sensitive element; and a controller which is implemented to switch on the second light source in temporal intervals, execute an evaluation of the light received from the light-sensitive element in the invisible wavelength range of the second light source with respect to whether a finger is applied to the optoelectronic sensor arrangement and to switch on the first light source as soon as the evaluation indicates that a finger is applied to the optoelectronic sensor arrangement.

Device and method for detecting a vital parameter

A pressure gauge for determining at least one pressure value describing a pressure of a fluid flowing in a pulsating manner in a phase of the pulsating flow, includes a pulse wave characterizer. The pulse wave characterizer is configured to obtain transmit time information of a pulse wave, and amplitude information of the pulse wave. The pressure gauge additionally includes a pressure value determiner configured to obtain a first pressure value describing a pressure of the fluid in a first phase, on the basis of the transmit time information and while using a mapping. The pressure value determiner is further configured to obtain a second pressure value describing a pressure of the fluid in a second phase, on the basis of the first pressure value and the amplitude information while using a mapping.

Pressure gauge, blood pressure gauge, method of determining pressure values, method of calibrating a pressure gauge, and computer program

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Cadolzburg, Germany

Christian Weigand