Invention Grant
US09351673B2 Method and apparatus for demodulating signals in a pulse oximetry system
有权
用于在脉搏血氧测定系统中解调信号的方法和装置
- Patent Title: Method and apparatus for demodulating signals in a pulse oximetry system
- Patent Title (中): 用于在脉搏血氧测定系统中解调信号的方法和装置
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Application No.: US14269606Application Date: 2014-05-05
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Publication No.: US09351673B2Publication Date: 2016-05-31
- Inventor: Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
- Applicant: Masimo Corporation
- Applicant Address: US CA Irvine
- Assignee: Masimo Corporation
- Current Assignee: Masimo Corporation
- Current Assignee Address: US CA Irvine
- Agency: Knobbe, Martens, Olson & Bear LLP
- Main IPC: A61B5/1455
- IPC: A61B5/1455 ; A61B5/00 ; H04J3/10 ; H04J14/08
Abstract:
A method and an apparatus measure blood oxygenation in a subject. A light source is activated to cause a first emission at a first wavelength and a second emission at a second wavelength. A detector detects a composite signal indicative of an attenuation of the first and second wavelengths by tissue of a patient. The composite signal is demodulated into a first intensity signal and a second intensity signal. Blood oxygenation in the subject is determined from the first and second intensity signals.
Public/Granted literature
- US20140243627A1 METHOD AND APPARATUS FOR DEMODULATING SIGNALS IN A PULSE OXIMETRY SYSTEM Public/Granted day:2014-08-28
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