Artificial haemodialysis kidneys
US3979284A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1975 |
| Grant date | Sep 7, 1976 |
| Priority date | — |
| Expiry date | Mar 21, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/929
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An artificial haemodialysing kidney and method of operation in which the haemodialyser has one chamber connectable to a blood stream and another chamber on the opposite side of its membrane forming part of a constant volume closed vessel for dialysis liquid. The system can be operated as a closed circuit during which time a fraction of the dialysis liquid is withdrawn from the constant volume closed vessel at a desired flow rate and the reduction in pressure then existing in the vessel near the membrane is noted. The system is then switched to open circuit with the dialysis liquid being fed from a source thereof and the used liquid is dumped, the pressure during this period being adjusted to the noted value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.