发明名称 |
Adaptive frequency domain filtering for improved non-invasive blood pressure estimation |
摘要 |
A system for processing oscillometric data from a plurality of pressure steps to determine the blood pressure of a patient as disclosed herein. A heart rate monitor connected to the patient acquires the patient's heart rate. A time to frequency domain converter receives oscillometric data and converts the oscillometric data into the frequency domain. A harmonic frequency calculator is connected to the heart rate monitor and derives at least the heart rate fundamental frequency. A filter connected to the time to frequency domain converter and the harmonic frequency calculator that produces a filter frequency domain oscillometric signal. A reconstruction calculator receives the filtered frequency domain oscillometric signal and reconstructs a time domain oscillometric signal. A method of computing an oscillometric envelope for use in determining the blood pressure of a patient is also disclosed herein.
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申请公布号 |
US8556821(B2) |
申请公布日期 |
2013.10.15 |
申请号 |
US20080034143 |
申请日期 |
2008.02.20 |
申请人 |
HERSH LAWRENCE T.;KOLLURI SAI;DONEHOO ROBERT F.;GENERAL ELECTRIC COMPANY |
发明人 |
HERSH LAWRENCE T.;KOLLURI SAI;DONEHOO ROBERT F. |
分类号 |
A61B5/22 |
主分类号 |
A61B5/22 |
代理机构 |
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代理人 |
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地址 |
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