PROBLEM TO BE SOLVED: To provide a biological body atrial fibrillation determination device capable of accurately determining atrial fibrillation of a biological body.SOLUTION: There is provided a biological body atrial fibrillation determination device, wherein, out of plural phose waves, an irregular pulse wave IHB is extracted, the irregular pulse wave IHB having a generation interval I which is not provided in a preset generation interval determination range Iavj whose center is an average generation interval Iav obtained by calculating an average of all generation intervals I of the plural pulse waves, and when a ratio TPR(%) of the irregular pulse wave IHB to the number of all generation intervals I of the plural pulse waves is larger than a preset abnormality generation interval generation ratio determination value TPRj, a generation of atrial fibrillation of a biological body is determined. The generation interval determination range Iavj is set to a range of ±13%-±16% of the average generation interval Iav. The abnormality generation interval generation ratio determination value TPRj is set to a range of 20-34%. Therefore, it is possible to accurately determine the atrial fibrillation of the biological body.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2019,JPO&INPIT【課題】生体の心房細動を精度良く判定できる生体の心房細動判定装置を提供する。【解決手段】生体の心房細動判定装置によれば、複数の脈波のうち、複数の脈波の全ての発生間隔Iを平均した平均発生間隔Iavを中心とする予め設定された発生間隔判定範囲Iavj内にない発生間隔Iを有する不規則脈波IHBが抽出され、複数の脈波の全ての発生間隔Iの数に対する不規則脈波IHBの数の割合TPR(%)が予め設定された異常発生間隔発生割合判定値TPRjよりも大きい場合に、生体の心房細動の発生が判定される。発生間隔判定範囲Iavjは、平均発生間隔Iavの±13%~±16%の間に設定される。異常発生間隔発生割合判定値TPRjは、20%~34%の間に設定される。これにより、生体の心房細動を精度良く判定することができる。【選択図】図6
