Systems and methods of controlling fouling during a filtration procedure
US8840790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Apr 9, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Systems and methods of controlling fouling during a filtration procedure are described. A plasmapheresis method includes accepting a selection of a plasma flow rate and predicting an estimated procedure end time based at least partially on a plasma collection target volume. The method also includes flowing blood past a membrane and changing a plasma flow rate until the selected plasma flow rate through the membrane is achieved. The method also includes determining an acceptable rate of pressure change with time for respective times to the estimated procedure end time, the acceptable fouling rate limit being associated with a system pressure and adjusting the plasma flow rate based on the determined acceptable rate of pressure change with time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.