发明授权
- 专利标题： Pulse wave analysis apparatus and pulse wave analysis program product for automatically extracting characteristic points of pulse wave
- 专利标题（中）： 脉波分析仪和脉波分析程序产品，用于自动提取脉搏波的特征点
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申请号： US11149441申请日： 2005-06-10
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公开(公告)号： US07074193B2公开(公告)日： 2006-07-11
- 发明人: Hironori Satoh , Takashi Inagaki , Akira Oshiumi
- 申请人： Hironori Satoh , Takashi Inagaki , Akira Oshiumi
- 申请人地址： JP Kyoto
- 专利权人： Omron Healthcare Co., Ltd.
- 当前专利权人： Omron Healthcare Co., Ltd.
- 当前专利权人地址： JP Kyoto
- 代理机构： Morrison & Foerster LLP
- 优先权： JP2004-175958 20040614
- 主分类号： A61B5/00
- IPC分类号： A61B5/00
摘要：
A pressure sensor for detecting a pulse wave, a digital conversion unit for converting a pressure signal from the pressure sensor into a digital signal, and a fourth derivative filter having an adjustable frequency characteristic for obtaining a fourth derivative wave of an original waveform based on the digital signal generated by the conversion by the digital conversion unit are provided. Local extrema of the fourth derivative wave in a section of the pulse wave corresponding to one beat are calculated. Based on the calculated local extrema, an early systolic component and a late systolic component are calculated.
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