A heart sound signal including very low frequency sound (frequency sound equal to or lower than the audible frequency) from the sound sensor or further a respiration sound signal or blood flow signal and an electrocardiogram signal from the electrocardiogram sensor are acquired and diagnosis of the cardiovascular system mainly including the heart To provide a circulatory respiration function measuring apparatus suitable for use in a breathing apparatus. A detection unit 1 including a sound sensor 11 and an electrocardiogram sensor 12, a signal processing unit 2 for performing signal processing on a signal from the detection unit 1, and a display unit 3 for outputting a signal from a signal processing unit 2, Simultaneously displays the heart sound signal or further the breathing sound signal or blood flow sound signal and the electrocardiogram signal.音センサからの超低周波音(可聴周波数以下の周波数音)を含む心音信号またはさらに呼吸音信号または血流信号、および心電図センサからの心電図信号を取得し、主として心臓を含む循環器系の診断に好適な循環呼吸機能測定装置を提供する。 音センサ11および心電図センサ12を備えた検出部1と、検出部1からの信号に信号処理を施す信号処理部2と、信号処理部2からの信号を画像出力する表示部3とからなり、心音信号またはさらに呼吸音信号または血流音信号、および心電図信号を同時表示する。
