Fail safe system for operating medical fluid valves
US7087036B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 24, 2002 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Nov 15, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87161
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method, system and apparatus for performing peritoneal dialysis are provided. To this end, in part, a cam arrangement for operating a series of valves in cooperation with a pump that pumps fluid to and from a patient, the valves including a supply valve, a drain valve, a from-patient valve and a to-patient valve is provided. The cam arrangement includes a camshaft and a series of cams connected to the camshaft. The cams are positioned and arranged to toggle back and forth between a first open position for the supply valve and a second open position for the drain valve, a third open position for the from-patient valve and the second open position, and the first open position and a fourth open position for the to-patient valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.