Patent ID: 9693735
Date: 2017-07-04
CPC Classifications: A61B

Claim:
1. A biological signal averaging processing device comprising: a signal acquisition unit configured to continuously obtain a biological signal in which analogous waves appear repeatedly; and a summing-averaging processing unit configured to subject the analogous waves obtained by the signal acquisition unit to a summing-averaging processing to thereby obtain an average wave each time succeeding predetermined time period lapses after a desired start time point or each time a predetermined number of succeeding analogous waves appear after the desired start time point, thereby taking out a biological signal from which random noise contained therein is removed, the biological signal averaging processing device further comprising: a noise level detection unit configured to detect noise levels of the random noise contained in the biological signal which is obtained by the signal acquisition unit, each time the succeeding predetermined time period lapses after the desired start time point or each time the predetermined number of the succeeding analogous waves appear after the desired start time point; a display unit configured to display information; and a display control unit configured to display information on a screen of the display unit, wherein the display control unit displays the noise levels detected by the noise level detection unit in a chronological manner in association with the respective succeeding predetermined time periods or the respective predetermined number of the succeeding analogous waves, the biological signal is an electroencephalographic signal, the summing-averaging processing unit subjects the electroencephalographic signal obtained by the signal acquisition unit to the summing-averaging processing to obtain a signal-averaged electrocardiogram, each time the succeeding predetermined time period lapses after the desired start time point, and the signal-averaged electrocardiogram, at a time where the noise level of the random noise detected by the noise level detection unit is smaller than a predetermined level, is used for a signal-averaged electrocardiogram test.