System and method to efficiently clean a blood filter
US10463775B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 15, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A renal therapy apparatus includes a blood filter, a blood pump, a treatment fluid pump, and a control unit configured to control at least one of the blood pump or the treatment fluid pump during a filter cleaning sequence. In a first phase of the filter cleaning sequence, a first fluid including a blood-compatible and physiologically safe fluid is transferred back and forth across the insides and/or outsides of the blood filter. After the first phase, a second fluid is formed by mixing the first fluid with air. In a second phase of the filter cleaning sequence, the second fluid is transferred across the insides and/or outsides of the blood filter at least one time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.