公开(公告)号：US20100249611A1

公开(公告)日：2010-09-30

申请号：US12470304

申请日：2009-05-21

申请人： Liu Chen ,  Min Wang ,  Hongchun Wang

发明人： Liu Chen ,  Min Wang ,  Hongchun Wang

IPC分类号： A61B5/0205 ,  A61B5/08

CPC分类号： A61B5/0816 ,  A61B5/7257 ,  A61B5/726

摘要： This Invention relates to a respiratory signal processing method, including the following steps: A. Obtain the respiratory physiological signals by means of a specific respiratory circuit, AD collects and obtains the respiratory digital signals and applies the data preprocessing to such signals; B. Convert frequency spectrum of the preprocessed respiratory signals and obtain the distribution of their frequency domain; C. Judge whether there is asphyxia in accordance with the properties of respiratory signal's physiological parameters; D. Introduce the physiological parameters of heart activities and analyze frequency spectrum distribution of respiratory signals and judge whether there is any interference from heart activities; E. Analyze the spectral energy envelop of respiratory waveform and find out the correct spectral peak, and then convert the frequency point corresponding to the spectral peak to the respiratory rate so as to obtain the value of current respiratory rate by integrating with the previous values of respiratory rate. The processing methods under this Invention can maximize the accuracy of results of respiratory rate and improve the stability of such result remarkably.

摘要翻译： 本发明涉及一种呼吸信号处理方法，包括以下步骤：A.通过特定呼吸回路获取呼吸生理信号，收集并获取呼吸数字信号，并将数据预处理应用于此类信号; B.转换预处理呼吸信号的频谱，获得其频域分布; C.根据呼吸信号的生理参数判断是否有窒息; D.介绍心脏活动的生理参数，分析呼吸信号的频谱分布，判断心脏活动是否有干扰; E.分析呼吸波形的光谱能量包络，找出正确的光谱峰值，然后将对应于光谱峰值的频率点转换为呼吸频率，以便通过与以前的值 呼吸频率。 本发明的加工方法可以最大限度地提高呼吸率结果的准确性，显着提高这种效果的稳定性。