Continuous non-invasive blood pressure monitoring method and apparatus
US6599251B2 · kind B2 · utility
126Cited by
47References
63Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 27, 2001 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Jul 27, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02255
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A non-invasive apparatus and method for monitoring the blood pressure of a subject detects a pulse signal at both a first and second location on the subject's body. The elapsed time between the arrival of corresponding points of the pulse signal at the first and second locations is determined. Blood pressure is related to the elapsed time by relationships such as:P=a+b ln(T)where a and b are constants dependent upon the nature of the subject and the signal detecting devices. The system can be calibrated by measuring a single pair of reference blood pressure and corresponding elapsed time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.