Dialysis systems having air traps with internal structures to enhance air removal
US7892332B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 1, 2007 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Apr 28, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/128
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dialysis fluid cassette includes a rigid portion defining first and second valve chambers, the rigid portion further defining an air separation chamber in fluid communication with the first and second valve chambers, the air separation chamber including a baffle and structured such that when the cassette is placed in a dialysis instrument, (i) the baffle extends upwardly from a bottom of the air separation chamber and (ii) first and second openings to the air separation chamber, communicating fluidly and respectively with the first and second valve chambers, are located near the bottom of the air separation chamber, such that the dialysis fluid is forced up one side of the baffle and down the other side of the baffle when flowing through the air separation chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.