Dialyzing method of blood in artificial kidney
US4222869A · kind A · utility
Inventor
Key dates
| Filing date | Sep 28, 1978 |
| Grant date | Sep 16, 1980 |
| Priority date | — |
| Expiry date | Sep 28, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/2066
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Dialyzing elements of capsule form are constituted in a blood circulation path of a dialyzing membrane. Pulse pressure variation is applied to a dialyzing liquid which circulates within the dialyzing vessel in contact with the surface of the dialyzing elements. The pulse pressure variation of the dialyzing liquid causes the tension of the dialyzing membrane surface to vary the diameter of discharge hole on the dialyzing membrane is decreased and increased repeatedly, thereby toxins such as the harmful substances removed by the kidney, which are contained in the blood can be selectively separated and removed so as to carry out blood dialysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.