Filters with gradient porosities
US9827364B2 · kind B2 · utility
9Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2015 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Jan 13, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/75
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Multiple embodiments of medical filters are described. For example, this document describes extracorporeal blood filters that have a gradient of filter pore sizes at different portions of the filter element. The gradient of filter pore sizes may enhance the filter's potential for capturing and removing gaseous bubbles that may be present in the blood or other fluid that is flowing through the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.