发明授权
- 专利标题： Noninvasive method and apparatus for measuring blood pressure by determining a maximum frequency of spectral content of the second heart sound
- 专利标题（中）： 通过确定第二心音的频谱含量的最大频率来测量血压的非侵入性方法和装置
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申请号： US12199217申请日： 2008-08-27
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公开(公告)号： US08202225B2公开(公告)日： 2012-06-19
- 发明人: Lorenzo Peretto , Alberto Bauer , Andrea Mollo
- 申请人： Lorenzo Peretto , Alberto Bauer , Andrea Mollo
- 申请人地址： IT Ferrara
- 专利权人： Luca Longhini
- 当前专利权人： Luca Longhini
- 当前专利权人地址： IT Ferrara
- 代理机构： RatnerPrestia
- 主分类号： A61B5/02
- IPC分类号： A61B5/02
摘要：
Methods and apparatus for noninvasively estimating a blood pressure are provided. A bandpass filter is applied to a second heart sound (S2) component to generate a filtered S2 component. The bandpass filter has a lower cutoff frequency greater than a maximum frequency of the S2 component. The maximum frequency of the S2 component is estimated using the filtered S2 component, a predetermined relationship is applied between the estimated maximum frequency and blood pressure to generate a blood pressure estimate and the blood pressure estimate is displayed.
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