Gas supply apparatus and method for the supply of treatment gas to a person or to an animal
AssigneeHudson Respiratory Care Inc.
InventorHans Lambert
Life of this patent
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Abstract
A gas supply apparatus for supplying anesthetic to a human or animal. A vaporizer has a vaporization chamber which includes a gas inlet and outlet. A liquid emitting device in the vaporization chamber communicates with an external liquid source through a liquid delivery. The liquid to be vaporized is exposed to the bypassing gas by way of the liquid emitting device. The liquid is exposed exclusively by way of the porosities in the liquid emitting device. A heater is provided for heating said liquid.
Claims21
Gas supply apparatus for the supply of treatment gas, e.g., an anaesthetic, to a human being or to an animal, wherein the apparatus has a vaporiser which includes a vaporising chamber that has a gas inlet means and a gas outlet means and in which a porous liquid-emitting device is arranged to expose a liquid to said vaporising chamber for vaporisation of liquid, and wherein the liquid-emitting device is connected to a liquid supply means which communicates with an external liquid source, and wherein the gas outlet means is adapted for connection to an inhalation means, characterized in that said liquid-emitting device lies against the inner surface of a wall of said vaporising chamber and wherein said liquid supply means delivers said liquid directly to said liquid-emitting device whereby the liquid is exposed exclusively via the porosities in the liquid-emitting device;
- and in that the apparatus includes liquid-heating means.
A method of supply treatment gas to the respiratory organs of a human being or an animal, wherein liquid is delivered from an external liquid source to a porous liquid-emitting device in which the liquid is exposed to a flowing gas so as to vaporise upon contact with said gas, whereafter the vapour is delivered to said respiratory organs, said method comprising delivering said liquid directly to said liquid-emitting device and exclusively exposing said liquid to said gas via the porosities of said liquid-emitting device.
Dependencies are inferred from the claim text.