发明名称 |
BLOOD PRESSURE MEASUREMENT SYSTEM |
摘要 |
A blood pressure measurement device and associated operating method utilize a measurement algorithm based on a plurality of measurements, supplying a unique ability to increase diagnostic and analytical success in detection. In an illustrative implementation, three measurement techniques are used in combination to improve overall measurement accuracy. A first of the three techniques is an ascultatory technique. A sound measurement acquired from a microphone located in the measurement cuff detects start and end Korotkoff sounds using a combination of filters. The auscultatory technique is a conventional method that is recommended by the American Heart Association and is similar to manual techniques used by a nurse or technician. The auscultatory technique and associated filtering techniques are well known by those having ordinary skill in the art. A second technique is an oscillometric technique that is commonly found in many low-cost blood pressure measurement devices. A pressure cuff is used to measure pressure oscillations, which are detected and monitored using mean pressure, and systolic and diastolic pressure ratios to identify systolic and diastolic blood pressure. A third technique, called a pattern recognition technique, measures a sound envelope and incorporates pattern recognition to identify systolic and diastolic pressures. A signal from the pressure sensor is used in addition to the three techniques to quantify the regions of sound under analysis.
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申请公布号 |
WO0178592(A2) |
申请公布日期 |
2001.10.25 |
申请号 |
WO2001US12082 |
申请日期 |
2001.04.11 |
申请人 |
COMPUTERIZED SCREENING, INC. |
发明人 |
BLUTH, CHARLES;BLUTH, JAMES |
分类号 |
A61B5/00;A61B5/022;(IPC1-7):A61B5/00 |
主分类号 |
A61B5/00 |
代理机构 |
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