Signal processing for pulse oximetry

Details Signal processing for pulse oximetry Signal processing for pulse oximetry

2011-08-23

2011-08-23

Winakur, Eric F (Department: 3777)

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

C600S324000, C600S336000

Reexamination Certificate

active

08005523

ABSTRACT:
A signal processing technique for estimating the frequency of a pulsatile signal (including but not limited to pulse oximetry signals) is disclosed. Each of the functions contained within a pre-selected set of functions is compared to the input signal at many different time-shifts, and the function/time-shift combination that best matches the input signal is selected. The frequency of the best-matching function is then used as the best estimate of the frequency of the input signal. Optionally, once a function has been selected, the rising portion of the selected function can be correlated in time to the rising portion of the input signal. Improved results can then be obtained by basing the oxygen saturation level calculations on samples taken from the rising portion of the input signal.

REFERENCES:
patent: 4193393 (1980-03-01), Schlager
patent: 4960126 (1990-10-01), Conlon et al.
patent: 6002952 (1999-12-01), Diab et al.
patent: 6650918 (2003-11-01), Terry
patent: 6684090 (2004-01-01), Ali et al.
patent: 6816741 (2004-11-01), Diab
patent: 6997880 (2006-02-01), Carlebach et al.
patent: 7341560 (2008-03-01), Henderson et al.
patent: 2003/0055325 (2003-03-01), Weber et al.
patent: 1 297 784 (2003-04-01), None
patent: WO 2004/016169 (2004-02-01), None
patent: WO 2004/066161 (2004-08-01), None

Affiliated with

Also associated with

Rating

Signal processing for pulse oximetry does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal processing for pulse oximetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal processing for pulse oximetry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2746810