PROBLEM TO BE SOLVED: To provide a respiratory waveform drawing system capable of presenting a waveform indicating respiration of a subject almost in real time.SOLUTION: A respiratory waveform drawing system for drawing a respiratory waveform of a subject on the bed includes a plurality of load detectors provided on the bed or at a leg lower part of the bed for detecting a load of the subject, a gravity position calculation part for obtaining a gravity position of the subject according to the load of the subject, a vibration coordinate setting part for setting a vibration origin and a vibration axis of the gravity position vibrating based on the respiration of the subject, a waveform drawing part for drawing the respiratory waveform based on a distance between the vibration origin and the gravity position in the vibration axis direction, and a load separation part for separating the load of the subject into each load of a plurality of subjects if the number of subjects is plural.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2018,JPO&INPIT【課題】被験者の呼吸を示す波形を、ほぼリアルタイムで提示することのできる呼吸波形描画システムを提供する。【解決手段】 ベッド上の被験者の呼吸波形を描画する呼吸波形描画システムは、ベッド又はベッドの脚下に設けられ、被験者の荷重を検出する複数の荷重検出器と、前記被験者の荷重に応じて被験者の重心位置を求める重心位置算出部と、被験者の呼吸に基づいて振動する前記重心位置の振動原点及び振動軸を設定する振動座標設定部と、前記振動原点と前記重心位置との前記振動軸方向の距離に基づいて前記呼吸波形を描画する波形描画部と、被験者が複数である場合に、前記被験者の荷重を複数の被験者の各々の荷重に分離する荷重分離部とを備える。【選択図】図7
