System and method to efficiently clean a blood filter
US9968723B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 8, 2013 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Jan 11, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for cleaning a blood filter includes: (i) pumping a physiologically safe fluid back and fourth through the insides and/or the outsides of a plurality of hollow fiber membranes of the blood filter to remove or loosen blood residuals, such as blood clots, proteins and/or biological fluid; (ii) injecting air into the physiologically safe fluid to form an air/fluid mixture; (iii) pumping the air fluid mixture through the insides and/or outsides of the plurality of the hollow fiber membranes of the blood filter to further or remove or loosen blood residuals therefrom; and (iv) removing the air/physiologically safe fluid mixture along with the removed or loosened blood residuals to drain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.