Photoplethysmography with controlled application of sensor pressure

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United States of America Patent

PATENT NO 8494606
APP PUB NO 20110046464A1
SERIAL NO

12543908

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Abstract

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Systems, methods, and devices for obtaining consistently reproducible diagnostic measurements with a photoplethysmographic sensor are provided. In one embodiment, a method for obtaining such a diagnostic measurement includes applying a pressure between a photoplethysmographic sensor and a patient, increasing the pressure until the photoplethysmographic sensor outputs a plethysmographic waveform of minimal amplitude, decreasing the pressure by a predetermined fraction, and obtaining a diagnostic measurement using the photoplethysmographic sensor. The pressure may be applied using a pressure device that includes, for example, a clip, a wrap, an inflatable balloon or bladder, or an inflatable cuff or any combination thereof.

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Patent Owner(s)

  • COVIDIEN LP

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Debreczeny, Martin P Danville, US 27 516
Ostrowski, Rafael Pittsburg, US 18 193

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