Air purging systems for blood treatments
US10391228B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 8, 2019 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Feb 8, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0402
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hemodialysis system configured to purge air from a blood circuit comprises a dialyzer; a dialysis fluid circuit operable with the dialyzer via dialysis fluid inlet and outlet lines, the dialysis fluid circuit including a fresh dialysis fluid pump, and a used dialysis fluid pump; the blood circuit operable with the dialyzer and including an arterial line, a venous line, a blood pump operable with the arterial line upstream of the dialyzer, a physiologically acceptable fluid source in fluid communication with the arterial line upstream of the blood pump, a drip chamber located along the venous line, and a container for accepting air purged from the blood circuit; and an air purging scheme wherein, with the dialysis fluid inlet and outlet lines connected to the dialyzer, the blood pump pumps a fluid through the dialyzer and into the drip chamber, forcing air from the drip chamber into the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.