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BIO-INFORMATION MEASUREMENT DEVICE AND METHOD THEREFOR

  • US 20160270708A1
  • Filed: 09/10/2014
  • Published: 09/22/2016
  • Est. Priority Date: 10/03/2013
  • Status: Abandoned Application
First Claim
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1. A biological information measurement apparatus comprising:

  • a first pulse wave signal acquisition unit configured to emit a first light beam to a first measurement position of a living body, and receive a corresponding light beam transmitted through or reflected by the living body, to acquire a first pulse wave signal;

    a second pulse wave signal acquisition unit configured to emit a second light beam to a second measurement position of the living body different from the first measurement position, and receive a corresponding light beam transmitted through or reflected by the living body, to acquire a second pulse wave signal;

    a time lag calculation section configured to calculate a temporal lag amount between a first time point at which the first pulse wave signal has a given phase, and a second time point at which the second pulse wave signal corresponding to the first pulse wave signal has the given phase;

    a direct-current component calculation section configured to calculate a direct-current component, based on either one of the first pulse wave signal and the second pulse wave signal;

    a pulse rate calculation section configured to calculate a pulse rate of the living body, base on either one of the first pulse wave signal and the second pulse wave signal; and

    a biological information calculation section configured to calculate, as biological information, a cardiac output of the living body, based on the lag amount, the direct-current component and the pulse rate.

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