Blood pressure monitoring apparatus
US7566307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2006 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Sep 12, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0285
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blood pressure monitoring apparatus which continuously estimates and monitors the blood pressure by using the pulse wave propagation time can accurately estimate the blood pressure. While an estimated blood pressure is continuously calculated by using the pulse wave propagation time, the correlation between the pulse wave propagation time and the interval between feature points contained in two consecutive heart beat waveforms of an electrocardiogram is monitored. If the correlation is reversed, the blood pressure is actually measured, and the estimated blood pressure is corrected on the basis of the difference between the estimated blood pressure and actually measured blood pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.