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Nachweis einer Apnoe mit blutdruckabhaengig erfassten Signalen

Apnea detecting device, has evaluation device evaluating pulse wave signal provided on pulse frequency for closing on presence of apnea, if change of signal process of pulse wave signal fulfills predetermined detection criterion
 
: Mörsdorf, H.; Aschenbrenner, S.; Hofmann, C.

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Frontpage ()

DE 102007020038 A: 20070427
DE 102007020038 A: 20070427
A61B0005
German
Patent, Electronic Publication
Fraunhofer IIS ()

Abstract
(A1) Auf das Vorliegen einer Apnoe kann geschlossen werden, wenn bei einem breitgestellten blutdruckabhaengig erfassten Pulswellensignal eine Aenderung eines Signalverlaufs des Pulswellensignals ein vorbestimmtes Nachweiskriterium erfuellt.

 

DE 102007020038 A1 UPAB: 20081118 NOVELTY - The device has a supply device providing a blood pressure-dependent pulse wave signal. An evaluation device evaluates the pulse wave signal provided on pulse frequency for closing on presence of an apnea, if a change of a signal process of the pulse wave signal fulfills a predetermined detection criterion. A low-pass filter derives the low-frequency portion of the pulse wave signal from the pulse wave signal. A critical frequency of the low-pass filter lies below the pulse frequency. The supply device supplies the pulse wave signal detected photoplethysmographically. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method for detecting an apnea (2) a computer program with instructions for detecting an apnea. USE - Device for detecting an apnea in a patient. ADVANTAGE - The device is designed such that beginning of the apnea is detected in simple manner using smaller number of vital parameters with reduced signal processing complexity.

: http://publica.fraunhofer.de/documents/N-86213.html