Linear, low noise inflation system for blood pressure monitor
US4832039A · kind A · utility
20Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1987 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Mar 23, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0235
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A compact, low noise inflation system for pressurizing occlusion cuffs used in conjunction with automatic blood pressure monitoring equipment. In the preferred embodiment, an electric pump is controlled by a closed-loop, pressure feedback control circuit which compares the cuff pressure with a desired pressurization profile set by the user or stored in a memory device. Acoustic filters are connected to the intake and exhaust ports of the pump to attenuate the intensity of acoustic noise and pressure waves to allow accurate detection of oscillometric pulse data by the blood pressure monitoring system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.