Breathing assistance device, and method of regulation

Details Breathing assistance device, and method of regulation Breathing assistance device, and method of regulation

A - Human Necessities

61

M

A61M 16/00 (2006.01)

Patent

CA 2518308

This invention relates to, according to a first aspect, a breathing assistance device consisting of: a turbine to generate a flow of pressurised respiratory gas, a duct to carry the pressurised gas to a patient, means of controlling the gas pressure capable of elaborating a pressure setting for the turbine, characterised in that the turbine is connected to a speed sensor capable of acquiring a signal corresponding to the rotation speed of a rotating element of the turbine, and the means of controlling include means of calculation linked to said speed sensor in order to elaborate using said signal a pressure setting and to send said pressure setting to the turbine. This invention relates to, according to a second aspect, a method for regulating the pressure of a respiratory gas delivered by a turbine to a patient, the method comprising elaborating a pressure setting for the turbine, characterised in that said pressure setting is elaborated using a signal representative of the rotation speed of a rotating element of the turbine.

L'invention concerne, dans un premier aspect, un appareil respiratoire équipé d'une turbine destinée à générer un flux de gaz respiratoire pressurisé, un conduit de transport du gaz pressurisé jusqu'à un patient, des moyens de réglage de la pression du gaz pouvant définir des paramètres de pression pour la turbine, se caractérisant en ce que la turbine est connectée à un capteur de vitesse pouvant acquérir un signal correspondant à la vitesse de rotation d'un élément rotatif de la turbine, les moyens de réglage comprenant des moyens de calcul connectés audit capteur de vitesse afin de définir, à l'aide dudit signal, un paramètre de pression, et d'envoyer ledit paramètre de pression à la turbine. L'invention concerne, dans un second aspect, un procédé de réglage de la pression d'un gaz respiratoire administré par une turbine à un patient, ce procédé consistant à définir un paramètre de pression pour la turbine, se caractérisant en ce que ledit paramètre de pression est défini à l'aide d'un signal représentant la vitesse de rotation d'un élément rotatif de la turbine.

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