Noninvasive apparatus and method for estimating blood pressure
US7828740B2 · kind B2 · utility
12Cited by
2References
23Claims
0Family size
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Key dates
| Filing date | Aug 1, 2006 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Sep 9, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7257
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and apparatus for noninvasively estimating a blood pressure are provided. A pulmonic (P) component extracted from a second heart sound (S2) signal is analyzed to obtain a number of oscillations in the P component. A predetermined relationship between the number of oscillations and PAP is used to generate a blood pressure estimate. A PCG sensor including a mechanical filter for receiving heart sounds from a chest wall is also provided. The pressure of the PCG sensor on the chest wall is adjustable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.