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Method and apparatus for producing a central pressure waveform in an oscillometric blood pressure system
专利权人:
Andrew Lowe
发明人:
Andrew Lowe
申请号:
US12632003
公开号:
US09433358B2
申请日:
2009.12.07
申请国别(地区):
US
年份:
2016
代理人:
摘要:
A central arterial blood pressure waveform is developed from pressure waveforms obtained from proximal and distal blood pressure cuffs on the brachial artery of an arm that are inflated to a supra-systolic pressure, The proximal and distal cuff pressure waveforms associated with at least one cardiac ejection cycle are sensed, The propagation times of a blood pressure pulse from the entry of the artery to the proximal cuff and from the proximal cuff to the distal cuff are calculated, permitting calculation of a reflection coefficient of the pressure pulse at one of the proximal and distal cuffs. Assuming a physical model of wave propagation along the artery between the aorta and the proximal and distal cuffs, an estimated pressure waveform at the opening of the artery can be determined.
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