Biosignal measuring device, biosignal measuring method and biosignal program
First Claim
1. A biosignal-measuring device, comprising:
- a first information acquisition module configured to acquire multiple pulse wave signals from a subject at a first position;
a second information acquisition module configured to acquire multiple electrocardiogram signals from the subject at a second position different from the first position;
a first calculation module configured to calculate multiple pulse wave velocities based on signals acquired by the first information acquisition module and the second information acquisition module;
a second calculation module configured to calculate multiple heartbeat intervals based on the signals acquired by the first information acquisition module and the second information acquisition module;
a third calculation module configured to calculate a relational expression between multiple pulse wave velocities and multiple heartbeat intervals;
a heartbeat interval estimation module configured to estimate multiple estimated heartbeat intervals based on new multiple pulse wave velocities and the relational expression;
a determination module configured to determine whether a position of at least one of the first information acquisition module or the second information acquisition module is changed based on multiple heartbeat intervals and multiple estimated heartbeat intervals; and
an output module configured to output a notification based on the determination of the determination module.
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Accused Products
Abstract
A biosignal measuring device has a first information acquisition module, a second information acquisition module, a first calculation module, a second calculation module, a third calculation module, a heartbeat interval estimation module, a determination module, and an output module. The first information acquisition module acquires the pulse wave signal. The second information acquisition module acquires an electrocardiogram signal. The first calculation module calculates a pulse wave velocity based. The second calculation module determines a heartbeat interval. The third calculation module calculates a relationship between pulse wave velocity and the heartbeat interval. The heartbeat interval estimation module estimates an estimated heartbeat interval based on pulse wave velocity and calculated relationship. The determination module determines whether the position of the first and second information acquisition modules has changed based on the heartbeat interval and the estimated heartbeat interval. The output module outputs information.
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Citations
20 Claims
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1. A biosignal-measuring device, comprising:
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a first information acquisition module configured to acquire multiple pulse wave signals from a subject at a first position; a second information acquisition module configured to acquire multiple electrocardiogram signals from the subject at a second position different from the first position; a first calculation module configured to calculate multiple pulse wave velocities based on signals acquired by the first information acquisition module and the second information acquisition module; a second calculation module configured to calculate multiple heartbeat intervals based on the signals acquired by the first information acquisition module and the second information acquisition module; a third calculation module configured to calculate a relational expression between multiple pulse wave velocities and multiple heartbeat intervals; a heartbeat interval estimation module configured to estimate multiple estimated heartbeat intervals based on new multiple pulse wave velocities and the relational expression; a determination module configured to determine whether a position of at least one of the first information acquisition module or the second information acquisition module is changed based on multiple heartbeat intervals and multiple estimated heartbeat intervals; and an output module configured to output a notification based on the determination of the determination module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A biosignal measurement method, comprising:
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acquiring multiple pulse wave signals of a subject at a first position on the subject; acquiring multiple electrocardiogram signals of the subject at a second position on the subject, the second position being different from the first position; calculating multiple pulse wave velocities using the pulse wave signals and the electrocardiogram signals; calculating multiple heartbeat intervals using the pulse wave signals and the electrocardiogram signals; calculating a relational expression between multiple pulse wave velocities and multiple heartbeat intervals; estimating multiple estimated heartbeat intervals based on new multiple pulse wave velocities and the relational expression; determining whether the first position and the second position are changed using the heartbeat intervals and the estimated heartbeat intervals; and outputting a notification based on the determination of whether the first position and the second position are changed. - View Dependent Claims (14, 15, 16, 17)
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18. A non-transitory computer readable medium including a biosignal measuring program that when executed in a computer causes the computer to perform steps comprising:
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acquiring multiple pulse wave signals of a subject at a first position on the subject; acquiring multiple electrocardiogram signals of the subject at a second position on the subject, the second position being different from the first position; calculating multiple pulse wave velocities using the pulse wave signals and the electrocardiogram signals; calculating multiple heartbeat intervals using the pulse wave signals and the electrocardiogram signals; calculating a relational expression between multiple pulse wave velocities and multiple heartbeat intervals; estimating multiple estimated heartbeat intervals based on new multiple pulse wave velocities and the relational expression; determining whether the first position and the second position are changed using the heartbeat intervals and the estimated heartbeat intervals; and outputting a notification based on the determination of whether the first position and the second position are changed. - View Dependent Claims (19, 20)
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Specification