Artificial kidney device
US3986956A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1974 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Dec 4, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D63/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An artificial kidney device is provided with a dialyzer for separating specified components from blood. A double walled tube is mounted midway of a tube provided for transporting the blood passed through the dialyzer into a vein of a human being, so as to automatically maintain an ultrafiltration pressure substantially constant. The double-tube wall consists of a flexible inner tube and a non-flexible outer tube and is adapted to automatically collapse or inflate the inner tube in response to a change in pressure prevailing within the dialyzer, by applying a predetermined pressure to a closed chamber defined between the inner tube and the outer tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.