Invention Application
WO2007143543A1 SYSTEM AND METHOD FOR ESTIMATING OXYGEN CONCENTRATION IN A MIXED GAS EXPERIENCING PRESSURE FLUCTUATIONS
审中-公开
在混合气体经验压力波动中估算氧气浓度的系统和方法
- Patent Title: SYSTEM AND METHOD FOR ESTIMATING OXYGEN CONCENTRATION IN A MIXED GAS EXPERIENCING PRESSURE FLUCTUATIONS
- Patent Title (中): 在混合气体经验压力波动中估算氧气浓度的系统和方法
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Application No.: PCT/US2007/070214Application Date: 2007-06-01
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Publication No.: WO2007143543A1Publication Date: 2007-12-13
- Inventor: JAFARI, Mehdi, Matthew
- Applicant: NELLCOR PURITAN BENNETT INCORPORATED , JAFARI, Mehdi, Matthew
- Applicant Address: 4280 Hacienda Drive Pleasanton, CA 94588 US
- Assignee: NELLCOR PURITAN BENNETT INCORPORATED,JAFARI, Mehdi, Matthew
- Current Assignee: NELLCOR PURITAN BENNETT INCORPORATED,JAFARI, Mehdi, Matthew
- Current Assignee Address: 4280 Hacienda Drive Pleasanton, CA 94588 US
- Agency: SLAYDEN, Bruce, W.
- Priority: US11/421,949 20060602
- Main IPC: A61B5/083
- IPC: A61B5/083 ; G01N27/49 ; G01N33/497
Abstract:
A method for estimating the concentration of a particular gas in a gas mixture having a fluctuating pressure is provided. A sensor output signal indicating the concentration of a particular gas in the gas mixture is received from a gas sensor. The received sensor output signal may vary over time due to the fluctuating pressure of the gas mixture. The received sensor output signal may be processed to determine an estimate of the concentration of the particular gas in the gas mixture. The processing includes performing an autocorrelation of the signal. In some embodiments, the particular gas is oxygen and the method is used to estimate the concentration of oxygen in a gas mixture having a fluctuating pressure.
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