WRIST-WORN PULSE TRANSIT TIME SENSOR AND METHOD OF USING THE SAME
user-5edf3a5a4c775e09d87cc848(2018)
摘要
A wrist-worn device heart-monitoring device is presented. The wrist-worn heart-monitoring device includes a radial tonometer configured to output a pressure signal indicating a pulse pressure wave at a user's wrist, two or more electrodes configured to output an electrical signal indicating a user's heart has been commanded to contract, and a microphone configured to output an audio signal indicating a closing of a user's aortic valve. The wrist-worn heart-monitoring device further includes a pulse transit time monitor configured to calculate a pre-ejection period of the user's heart based on at least the pressure, electrical, and audio signals, and calculate a pulse transit time based on at least the pre-ejection period, the pressure signal, and the electrical signal.
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关键词
Pulse pressure wave,Signal,Audio signal,Microphone,Acoustics,Electrode,Wrist,Computer science,Pulse Transit Time
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