Medical device and method for inhalation of aerosolized drug...

Details Medical device and method for inhalation of aerosolized drug... Medical device and method for inhalation of aerosolized drug...

A - Human Necessities

61

M

A61M 11/06 (2006.01) A61M 15/00 (2006.01) A61M 16/06 (2006.01) A61M 16/08 (2006.01)

Patent

CA 2469347

Medical devices and methods are provided for the pulmonary delivery of a drug in heliox gas. One method comprises (a) providing a medical device which comprises an aerosolization means, a conduit means, a gas mask, and a source of heliox gas, the medical device being operable as a closed system to prevent entrainment of ambient air into an inhaled aerosol; (b) providing a drug in a liquid or dry powder form; (c) using the aerosolization means to form an aerosol of particles or droplets dispersed in heliox gas, said particles or droplets comprising the drug and said heliox gas being from said source; and (d) flowing the aerosol through the conduit means and into the gas mask secured over a patient's mouth and nose in a manner for the patient to inhale the aerosol without dilution of the aerosol with ambient air.

L'invention concerne des dispositifs médicaux et des méthodes permettant l'administration pulmonaire d'un médicament avec de l'héliox. Une méthode consiste (a) à utiliser un dispositif médical comprenant une unité d'aérosolisation, une unité de conduit, un masque à gaz et une source d'héliox, ce dispositif médical pouvant fonctionner comme un système fermé empêchant l'entraînement d'air ambiant dans un aérosol inhalé, (b) à utiliser un médicament sous forme de liquide ou de poudre sèche, (c) à utiliser l'unité d'aérosolisation pour former un aérosol de particules ou de gouttelettes dispersées dans l'héliox, lesdites particules ou gouttelettes contenant le médicament et ledit héliox provenant de la source, et (d) à acheminer l'aérosol à travers l'unité de conduit et dans le masque à gaz fixé sur la bouche et le nez d'un patient de façon que ce dernier inhale l'aérosol sans dilution dudit aérosol avec l'air ambiant.

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