Gas systems and methods for enabling respiratory stability

Details Gas systems and methods for enabling respiratory stability Gas systems and methods for enabling respiratory stability

A - Human Necessities

61

M

A61M 16/12 (2006.01) A61M 16/00 (2006.01) A61M 16/10 (2006.01)

Patent

CA 2514481

Minimal concentrations of CO2 are mixed with pressurized air to provide a gas mix effective for stabilizing breathing of target patients or users. CO2 concentrations below about 2 % and preferably between about .5 % and 1.25 % are employed. A gas modulator includes a gas mixing module (20), a sensor (36) and a control processor (100). The gas mixing module mixes plural gases, including CO2, into a gas mix, for delivery to a substantially leak-proof patient face mask (48). The sensor (42), located substantially at the face mask, measures C02 concentration in the face mask. The control processor, based on a signal from the sensor, controls the CO2 concentration in the gas mix.

Selon la présente invention, des concentrations minimales de CO2 sont mélangées à de l'air sous pression afin d'obtenir un mélange de gaz efficace pour stabiliser la respiration de patients ou d'utilisateurs cibles. On utilise des concentrations en CO2 inférieures à environ 2 %, de préférence entre environ 0,5 % et 1,25 %. Un modulateur de gaz comprend un module de mélange de gaz (20), un capteur (36) et un processeur de commande (100). Le module de mélange de gaz mélange plusieurs gaz, notamment du CO2, pour former un mélange de gaz à fournir à un masque facial pour patient (48) sensiblement hermétique. Le capteur (42), situé principalement sur le masque facial, mesure une concentration en CO2 dans ce masque facial. Le processeur de commande, se basant sur un signal qui provient du capteur, commande la concentration en CO2 dans le mélange de gaz.

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