Blood purification using plural ultrafiltration stages
US4350594A · kind A · utility
30Cited by
2References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 8, 1981 |
| Grant date | Sep 21, 1982 |
| Priority date | — |
| Expiry date | Apr 8, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/3639
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a blood treatment apparatus realizing double-step-membrane filtration, namely separation of blood into plasma and a corpuscular fraction and separation of high-molecular-weight substances (e.g. gamma-globulin) in the plasma from low-molecular-weight substances (e.g. albumin). A method of treating blood is also provided. The apparatus and method are effective e.g. in the treatment of blood of patients with peripheral circulatory insufficiency due to arteriosclerosis and of patients with rheumatoid arthritis, which is an autoimmune disease.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.