INTERFERENCE REDUCTION IN MONITORING A VITAL PARAMETER OF A PATIENT

The invention relates to a method of and device for monitoring a vital parameter of a patient by emitting light onto tissue of the patient with at least one light source (1, 2) and collecting light which is transmitted through the tissue and/or which is reflected from the tissue. The emitted light i...

Full description

Saved in:
Bibliographic Details
Main Authors FOKKENROOD, STEVEN, ANTONIE, WILLEM, VEEN, JEROEN, JANSEN, THEODORUS, PETRUS, HENRICUS, GERARDUS
Format Patent
LanguageEnglish
French
German
Published 30.01.2013
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
Online AccessGet full text

Cover

More Information
Summary:The invention relates to a method of and device for monitoring a vital parameter of a patient by emitting light onto tissue of the patient with at least one light source (1, 2) and collecting light which is transmitted through the tissue and/or which is reflected from the tissue. The emitted light is multiplexed according to a predefined multiplexing scheme having a plurality of multiplexing channels, and the collected light is detected according to the predefined multiplexing scheme, resulting in a plurality of detection channels (16, 17, 18, 19). At least one of the multiplexing channels is arranged to be a dark multiplexing channel for which no light is emitted by the at least one light source (1, 2), resulting in a dark detection channel (19), and the signal of this dark detection channel (19) is used for generating a reference signal for reducing interference in the signal of at least one of the other detection channels (16, 17, 18). In this way a versatile and reliable possibility of monitoring a vital parameter of a patient with a high signal-to-interference ratio is provided.
Bibliography:Application Number: EP20110716043