PROBLEM TO BE SOLVED: To provide a respiratory waveform analysis device that can accurately obtain noise components in a respiratory waveform.SOLUTION: The respiratory waveform analysis device for analyzing a respiratory waveform generated on the basis of chronological changes in the concentration of a specific component in respiratory gas of a subject, includes: a respiratory airway adapter through which the respiratory gas of the subject flows, and in which a sensor for detecting the concentration of the specific component in the respiratory gas and outputting a signal corresponding to the detected value is disposed therein a respiratory gas concentration calculation part 210 for generating a concentration signal indicating a level of the concentration based on the signal from the sensor and a stored water detection part for detecting water remaining in the respiratory airway adapter based on the concentration signal.COPYRIGHT: (C)2013,JPO&INPIT【課題】呼吸波形におけるノイズ成分を正確に把握することができる呼吸波形解析装置の提供。【解決手段】被測定者の呼吸ガス中における特定成分の濃度の経時変化に基づく呼吸波形を解析する呼吸波形解析装置であって、被測定者の呼吸ガスが流れるとともに、呼吸ガスにおける特定成分の濃度を検出してその検出値に応じた信号を出力するセンサが配置された呼吸気道アダプタと、センサからの信号に基づいて濃度の大きさを示す濃度信号を生成する呼吸ガス濃度算出部210と、濃度信号に基づいて、呼吸気道アダプタ内に水が貯留していることを検知する貯留水検知部を備える。【選択図】図4
