Artificial kidney
US4024059A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1975 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Apr 22, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/929
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An artificial kidney in which blood is pumped to and from a first compartment of a dialysis apparatus and dialysis liquid is pumped to and from a second compartment thereof. The hydrodynamic resistance within these compartments is arranged so that one simultaneously maintains a first zone of the apparatus in which the pressure of the blood in the first compartment is higher than the pressure of dialysis liquid in the second compartment and a second zone in which the pressure of the blood in the first compartment is lower than the pressure of the dialysis liquid in the second compartment. By this means in the first zone ultrafiltration occurs from the blood to the dialysis liquid and in the second zone ultrafiltration occurs to inject materials back into the bloodstream from the dialysis liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.