Continuous non-invasive blood pressure measurement apparatus and methods providing automatic recalibration
US7455643B1 · kind B1 · utility
124Cited by
10References
52Claims
0Family size
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Key dates
| Filing date | Dec 20, 2004 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Jan 21, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7239
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blood pressure measurement system is configured to perform a calibration automatically when a calibration condition is satisfied. The calibration condition is based upon one or more parameters of pulse waves of a subject. The parameters may include pulse wave area; a time difference between systolic peak and reflected wave peak or dichrotic notch in the pulse wave and a shape of at least a portion of the pulse wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.