JP2013094222A5 - - Google Patents

Claims (8)

A first acquisition means for acquiring a physical quantity of an attachment part to be attached to a living body or a measurement part for measuring a pulse wave of the living body;
A second acquisition means for acquiring a measurement signal the irradiated light to the measurement site based on the amount of light reflected by the measurement site,
The measurement site is congested when the physical quantity of the attachment site or the measurement site acquired by the first acquisition unit and the measurement signal acquired by the second acquisition unit satisfy a predetermined condition. And a determination means for determining that there is a blood stasis determination device.   The congestion determination apparatus according to claim 1, wherein the first acquisition unit acquires an acceleration according to a posture and a movement of the wearing part or the measurement part as the physical quantity. The determination unit is configured such that, as the predetermined condition, the posture of the measurement part based on the acceleration acquired by the first acquisition unit is a posture inclined in the direction of gravity, and the fluctuation range of the acceleration is predetermined. And satisfying each condition that the fluctuation range of the amplitude of the measurement signal with respect to the reference signal indicating the measurement result of the pulse wave in a non-congestive state is within a predetermined range, The blood congestion determination apparatus according to claim 2, wherein the blood congestion state is determined when the condition that each condition is satisfied continues for a certain period of time. 4. The congestion determination apparatus according to claim 2, wherein the predetermined range with respect to the fluctuation range of the acceleration is a range determined according to a pulse wave measurement target. The congestion determination apparatus according to any one of claims 1 to 4 ,
It is mounted on a measurement site for measuring a pulse wave, a light emitting and receiving means for the irradiated light to the measurement site the measurement signal based on the amount of light reflected by the measurement site, and outputs the congestion determining device,
An apparatus for outputting a pulse wave, comprising: an output unit that outputs a pulse wave signal indicating a pulse wave of the living body based on a determination result in the congestion determination apparatus and the measurement signal. First acquisition means for acquiring a physical quantity of a measurement site for measuring a pulse wave of a living body;
Second acquisition means for acquiring a measurement signal based on the amount of light reflected on the measurement site by the light irradiated on the measurement site;
Determining means for determining that the measurement site is congested when the physical quantity acquired by the first acquisition means and the measurement signal acquired by the second acquisition means satisfy a predetermined condition;
A device for determining blood congestion. The congestion determination apparatus according to claim 1, wherein the sixth acquisition unit acquires an acceleration corresponding to the posture and movement of the measurement site as the physical quantity. A detection step for detecting a physical quantity at a measurement site for measuring a body wearing part or a pulse wave of a living body ;
A measuring step of outputting a measurement signal indicating the amount of light the light irradiated to the measuring site for measuring the pulse wave is reflected by the measurement site,
The measurement when the physical quantity detected at the detection step and the physical quantity at the measurement site for measuring the pulse wave of the living body and the measurement signal output from the measurement step satisfy a predetermined condition. And a determination step for determining that the region is congested.