Oscillometric blood pressure measuring apparatus
US5560366A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1994 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Jul 12, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/022
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An oscillometric blood pressure measuring apparatus, including an inflatable cuff adapted to be wound around a body portion of a living subject, an oscillometric blood pressure measuring device which supplies a fluid pressure to the cuff to press the body portion of the subject, detects variation of a plurality of pulse amplitudes of a pulse wave which is produced in the cuff in synchronism with heartbeat of the subject while the fluid pressure of the cuff is changed, and determines a blood pressure of the subject based on the variation of the pulse amplitudes, a cuff pulse-wave detecting device which detects a pulse wave which is produced in the cuff when the fluid pressure of the cuff takes a reference pressure value not higher than a mean blood pressure of the subject, and produces a pulse wave signal representative of the detected pulse wave, and a waveform storing device including a waveform memory, for storing a waveform of a pulse wave of the subject by utilizing the pulse wave signal produced by the cuff pulse-wave detecting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.