Multi-functional blood pressure monitor
US5603329A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1995 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Jun 21, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02255
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The multi-functional blood pressure monitor includes input unit for entering a value of blood pressure for calibration; unit for detecting a time interval detection reference point on an aortic pulse wave, unit for detecting a peripheral blood pulse wave as it appears later than the aortic pulse wave, unit (CPU) for measuring the pulse wave propagation time on the basis of the detection outputs from the unit for detecting a time interval detection reference point and the unit for detecting a peripheral blood pulse wave, first computing unit (CPU) for computing the values of parameters .alpha. and .beta. using the two values of blood pressure that have been entered for calibration and the two pulse wave propagation times that have been measured for calibration, second computing unit (CPU) for computing blood pressure from a measured pulse wave propagation time and the values of parameters .alpha. and .beta., and display for presenting both the computed blood pressure and the value of parameter .alpha. which serves as an index for arteriosclerosis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.