Ionic enhanced dialysis/diafiltration system
US6821431B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Nov 29, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D61/146
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dual-stage system and methods for using the same include first and second filtration cartridges is provided and is particularly suited for hemodiafiltration and/or hemodialysis. As fluid enters the first diafiltration cartridge, the hydrogenion concentration (pH) is reduced by exposing it to an acidic solution such as citric acid across a filter membrane. This stage allows for improved removal of certain toxins in the fluid, such as protein-bound substances that disassociate more readily from proteins at lower pH. As the filtered fluid enters the second filtration cartridge, the pH of the fluid is restored to normal levels prior to infusion to a patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.