Method and apparatus for monitoring a sedated patient

A - Human Necessities – 61 – B

Patent

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A61B 5/053 (2006.01)

Patent

CA 2601919

A method and an apparatus for monitoring a sedated patient, the method comprising the steps of providing a skin conductance signal measured at an area of the patient's skin, establishing the existence of at least one fluctuation peak in the skin conductance signal through a time interval, providing a width value of said fluctuation peak in the skin conductance signal through said time interval, and comparing the width value with a reference value. If said width value is larger than the reference value, an output signal is provided which indicates the state of awakening in the patient. If the width value is less than the reference value, an output signal is provided which indicates the state of pain in the patient.

L'invention concerne une méthode et un dispositif pour surveiller un patient sous sédatifs. Ladite méthode comprend les étapes suivantes: fournir un signal de conductance dermique, mesuré en une zone de la peau du patient; déterminer l'existence d'au moins une crête de fluctuation du signal de conductance dermique au cours d'un intervalle-temps; fournir une valeur de largeur de ladite crête de fluctuation du signal de conductance dermique dans ledit intervalle-temps et comparer la valeur de largeur avec une valeur de référence. Si ladite valeur de largeur est supérieure à la valeur de référence, un signal de sortie est émis et indique l'état de conscience du patient. Si la valeur de largeur est inférieure à la valeur de référence, un signal de sortie est émis et indique l'état de souffrance du patient.

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