Apparatus and method of finding the diastolic blood pressure point using pulse oximetry
US6405075B1 · kind B1 · utility
21Cited by
4References
4Claims
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Key dates
| Filing date | Oct 2, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Oct 2, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02255
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and method are provided for deriving diastolic blood pressure (DP) from systolic blood pressure (SP) and mean blood pressure (MP), especially useful in infants. A pulse oximeter is used to measure systolic blood pressure (SP) and an oscillametric blood pressure cuff is used to measure mean blood pressure (MP). Diastolic blood pressure is then derived from the formula: where K is a constant of 2.94±0.04 and C is a constant of 2.06±0.04.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.