Device for removal of excess water from blood
US4218321A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 2, 1978 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Aug 2, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D71/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for removal of excess water from blood is formed by having a plurality of solution chambers and a plurality of blood chambers arranged alternately, partitioning the adjoining ones of the alternately disposed chambers by insertion of semi-permeable membranes one each along the boundaries thereof and having a sorbent retained in the form of a bed inside the blood chambers, whereby the blood containing waste material and excess water in consequence of renal insufficiency is freed from such fouling substances by causing the blood to flow through the blood chambers in order for the beds of sorbent to deprive the blood of the waste material through sorption and for the high concentration solutions flowing through the adjoining solution chambers to deprive the blood of the excess water through osmosis effected through the medium of the semi-permeable membranes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.