Oscillometric blood pressure monitor and method employing non-uniform pressure decrementing steps
US5170795A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1986 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Oct 27, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02225
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blood pressure cuff is applied about a subject's artery, and inflated above the systolic level thus fully occluding the artery for a full heart cycle. The cuff pressure is thereafter reduced to permit an increasing flow through the progressively less occluded artery, and a measure of the peak amplitudes of the successively encountered blood pressure (oscillatory complex) pulses stored in memory. Also retained is the cuff pressure obtaining for each stored complex peak. In accordance with varying aspects of the present invention, the stored complex peak-representing data ensemble is corrected for aberrations; and improved data processing operates on the stored (and advantageously corrected) pulse peak data and the corresponding cuff pressure information to determine the subject's systolic arterial blood pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.