Valve system with removable fluid interface
US5178182A · kind A · utility
308Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1991 |
| Grant date | Jan 12, 1993 |
| Priority date | — |
| Expiry date | Aug 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7504
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A valve having a disposable portion, which comes into contact with the fluid being controlled by the valve. The disposable portion has a valving chamber and a flexible membrane, which can seal off a mouth that is located on a protrusion in the chamber. The disposable portion is held by a fixture which uses a control gas or a mechanical actuator to apply pressure to the flexible membrane. The disposable portion may also have a pressure conduction chamber, which may be used to measure the flow rate of liquid through the disposable portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.