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Extraction of Respiratory Rate from Pulse Oximeter Recordings
Case ID:
7896
Web Published:
8/27/2020
Background
Pulse oximeters are simple, non-invasive instruments used extensively in hospitals and emergency rooms to acquire patient oxygen saturation and cardiac functions. To maximize the potential of pulse oximetry, researchers have explored additional measurements, including respiratory rates. Today, respiratory rates can only be determined with costly equipment and additional sensors that patients often find uncomfortable, which further limits its use as a diagnostic tool.
Technology
Researchers in the Department of Biomedical Engineering at Stony Brook University have developed a new method that uses the pulse oximeter signal to estimate a respiratory rate. They have developed an algorithm called ?variable frequency complex demodulation? (VFCD) to identify frequency modulations of the photoplethysmogram waveform. The algorithm is based on the highest possible time and frequency resolution method for estimating time-frequency resolution method for estimating time-frequency spectra (TFS) and associated amplitudes. VFCD provides the best time and frequency resolution and most accurate amplitude estimates compared to other time frequency-based methods for tracking respiratory rate.
Advantages
Detects modulations in AM or FM signals, most accurate and repeatable results when compared to AR, CWT-FM and CWT-AM methods.
Application
Biomedical Engineering.
Patent Status
8,858,450 & 8,388,543
Stage Of Development
Licensing Potential
Licensing
Licensing Status
Available for license.
Additional Info
Additional Information:
https://stonybrook.technologypublisher.com/files/sites/7896---extraction-of-respiratory-rate-from-pulse-oximeter-recordings.jpg
Please note, header image is purely illustrative. Source: wideshuts, stock.adobe.com/uk/334138696, stock.adobe.com
Patent Information:
App Type
Country
Serial No.
Patent No.
File Date
Issued Date
Expire Date
Category(s):
Campus > Stony Brook University
Technology Classifications > Diagnostics
Technology Classifications > Medical Devices
Case ID: R7896
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For Information, Contact:
Sean Boykevisch
Director
State University of New York at Stony Brook
6316326952
sean.boykevisch@stonybrook.edu
Inventors:
Ki Chon
Kihwan Ju
Keywords:
pulse oximeter
respiration rate
Technologies