Method and apparatus for detecting the type of anesthetic gas
First Claim
1. A method for detecting a type of anesthetic gas, comprising:
- generating a light with a plurality of wavelengths, the light comprising a plurality of light beams with central frequencies corresponding to the plurality of wavelengths;
passing said light through a gas chamber, wherein the gas chamber is filled with said type of anesthetic gas, and said type of anesthetic gas has an absorption characteristic with respect to said plurality of light beams;
detecting a light intensity of each of the plurality of light beams transmitted through the gas chamber to obtain a relative absorption coefficient between selected two of said plurality of light beams attenuated, wherein the plurality of light beams are absorbed by said type of anesthetic gas and are attenuated; and
determining the type of anesthetic gas based on the relative absorption coefficient between the selected two of said plurality of attenuated light beams without determining or identifying a concentration of the anesthetic gas.
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Accused Products
Abstract
Disclosed is a method and apparatus for detecting the type of anesthetic gas. The method comprises the steps of: generating a light with a plurality of wavelengths, the light being able to be separated to a plurality of light beams whose central frequencies correspond to the plurality of wavelengths; passing said light through a gas chamber, wherein, the gas chamber being filled with said anesthetic gas, said anesthetic gas having absorption characteristic with respect to said plurality of light beams; detecting the light intensity of the attenuated light beams transmitted from the gas chamber respectively, to obtain the relative absorption characteristic of said attenuated light beams, which attenuated light beams having been absorbed by said anesthetic gas; and determining the type of said anesthetic gas based on the relative absorption characteristic between said attenuated light beams.
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Citations
20 Claims
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1. A method for detecting a type of anesthetic gas, comprising:
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generating a light with a plurality of wavelengths, the light comprising a plurality of light beams with central frequencies corresponding to the plurality of wavelengths; passing said light through a gas chamber, wherein the gas chamber is filled with said type of anesthetic gas, and said type of anesthetic gas has an absorption characteristic with respect to said plurality of light beams; detecting a light intensity of each of the plurality of light beams transmitted through the gas chamber to obtain a relative absorption coefficient between selected two of said plurality of light beams attenuated, wherein the plurality of light beams are absorbed by said type of anesthetic gas and are attenuated; and determining the type of anesthetic gas based on the relative absorption coefficient between the selected two of said plurality of attenuated light beams without determining or identifying a concentration of the anesthetic gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for detecting a type of anesthetic gas, comprising:
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at least one light source configured for generating a light with a plurality of wavelengths, the light being separated to a plurality of light beams whose central frequencies correspond to the plurality of wavelengths; a gas chamber, to which said anesthetic gas is injected, wherein said type of anesthetic gas has an absorption characteristic with respect to one of said plurality of light beams having passed through said gas chamber; a detecting unit configured for detecting light intensity of the one of the plurality of light beams transmitted through the gas chamber to obtain a relative absorption coefficient between the one of the plurality of light beams and another light beam of the plurality of light beams, wherein the light beams are absorbed by said anesthetic gas after being injected into the gas chamber; and a determining unit configured for determining the type of said anesthetic gas based at least in part on the relative absorption coefficient without determining or identifying a concentration of the anesthetic gas. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification