PROBLEM TO BE SOLVED: To provide a respiratory function measuring apparatus which can measure a respiratory function signal indicative of an intrathoracic pressure change and the like.SOLUTION: The respiratory function measuring apparatus includes: a blood pressure transducer 11 configured to detect blood pressure, a respiratory component separating portion 35 as an extracting means configured to extract a respiratory function signal by using a signal derived from cardiac contraction or a signal derived from respiration from the blood pressure detected by the blood pressure transducer 11, and means configured to extract the signal derived from cardiac contraction or the signal derived from respiration from a living body to supply the signal to the respiratory component separating portion 35.COPYRIGHT: (C)2010,JPO&INPIT【課題】胸腔内圧変化などの呼吸機能信号を簡易に測定する。【解決手段】血圧を検出するための血圧トランスデューサ11と、前記血圧トランスデューサ11により検出された血圧から、心臓収縮由来の信号または呼吸由来の信号を用いて呼吸機能信号を抽出する抽出手段である呼吸成分分離部35と、生体から心臓収縮由来の信号または呼吸由来の信号を取り出し、前記呼吸成分分離部35に対し供給する手段とを具備する。【選択図】図2
