A non-invasive method and apparatus for determining onset of...

A - Human Necessities – 61 – B

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A61B 5/02 (2006.01) A61B 5/00 (2006.01) A61B 5/04 (2006.01) G06F 17/00 (2006.01) A61B 5/024 (2006.01) A61B 5/0402 (2006.01) A61B 5/053 (2006.01)

Patent

CA 2439276

The invention relates to the modelling and design of early warning systems for detecting medical conditions using physiological responses. The device comprises sensors for monitoring physiological parameters such as skin impedance, heart rate, and QT interval of a patient, means for establishing when those parameters change, the rate of change of the parameters, and a neural network processor for processing the information obtained by the sensors. The neural network processor is programmed with a fast learning algorithm. When the neural network establishes that a physiological condition is present in the patient an alarm signal will be generated. The invention extends to a method of non-invasive monitoring of a person using a neural network programmed with a fast learning algorithm. A non-invasive hypoglycaemia monitor is specifically described.

L'invention concerne la modélisation et la conception de systèmes de détection rapide destinés à la détection d'états pathologiques à l'aide de réponses physiologiques. Le dispositif de la présente invention comprend des capteurs permettant de surveiller des paramètres physiologiques, tels que l'impédance de la peau, le rythme cardiaque et l'intervalle QT d'un patient, un dispositif permettant d'établir quand ces paramètres changent et le rythme d'évolution de ces paramètres, et un processeur neuronal destiné au traitement des informations obtenues par le biais des capteurs. Le processeur neuronal est programmé à l'aide d'un algorithme d'apprentissage rapide. Lorsque le réseau neuronal établit qu'un état pathologique est présent chez le patient, un signal d'alarme est généré. L'invention concerne également une méthode non invasive destinée à la surveillance d'une personne, utilisant un réseau neuronal programmé à l'aide d'un algorithme d'apprentissage rapide. L'invention concerne plus précisément un dispositif de contrôle de l'hypoglycémie.

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