Patent ID: 9681830
Date: 2017-06-20
CPC Classifications: A61B

Claim:
1. A device for detecting a vital parameter, comprising: an optoelectronic sensor arrangement for detecting the vital parameter by means of light remission at a finger, wherein the optoelectronic sensor arrangement comprises 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; wherein the controller is implemented to execute an evaluation over a temporal course of the light received from the light sensitive element in the invisible wavelength range of the second light source to detect a pulse parameter when a finger is applied to the optoelectronic sensor arrangement and to switch on the first light source when a pulse wave is detected.