Pressure gauge for regulating pressure in a disposable pressure cuff
US5346477A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1991 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Oct 1, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/1483
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for regulating pressure in and for controllably pressurizing infusion devices includes a flow-through pressure gauge for indicating and regulating the pressures within such infusion devices between minimum and maximum desirable pressures. Such apparatus includes a gauge, coupled between a fluid source and the bladder portion of the pressure infusion device. The gauge receives pressurized fluid from the fluid source, provides fluid to the bladder, indicates a range of fluid pressures in the bladder and maintains the pressure of fluid in the bladder between minimum and maximum pressures. The gauge includes a telescopingly coupled member to indicate a range of pressures in the bladder. A first valve permits the passage of fluid through the gauge and into the bladder when the fluid pressure exceeds a minimum pressure. A second valve prevents the passage of fluid through the gauge and into the bladder when the fluid pressure exceeds a maximum pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.