Use of motion sensor for dynamic updating of heart detection...

Details Use of motion sensor for dynamic updating of heart detection... Use of motion sensor for dynamic updating of heart detection...

2005-10-20

2011-10-04

Getzow, Scott (Department: 3762)

Surgery

Diagnostic testing

Cardiovascular

C600S521000, C600S536000

Reexamination Certificate

active

08032206

ABSTRACT:
A method for accurate heart rate detection includes receiving a signal indicative of motion due to respiration, and using the signal indicative of motion to adjust a threshold value of a signal indicative of activity of the heart. The adjusted threshold value is used to detect an accurate heart rate of a patient. A system for accurate heart rate detection comprises a motion sensor which produces a signal indicative of motion due to respiration, and a processor which adjusts a threshold value of a signal indicative of activity of the heart according to the signal indicative of motion. The adjusted threshold value is used to detect an accurate heart rate of a patient. The motion sensor can be any device that can determine direction of motion, such as an accelerometer, a displacement sensor, a velocity sensor, or a photoplethysmography (PPG) sensor.

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