Hollow fiber membrane oxygenator
US6495101B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1998 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Oct 8, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hollow fiber membrane oxygenator of external blood circulation type has a housing and a lot of porous hollow fiber membranes for gas transfer housed in the housing. In the oxygenator, blood flows along the outer side of the hollow fiber membranes, whereas oxygen-containing gas flows along the inner side thereof. An outer surface or outer layer of the hollow fiber membrane as a blood-contacting portion is coated with synthetic polymer mainly formed of alkoxyalkyl(meta)acrylate containing a C(1-4)alkoxy group and a C(1-4)alkyl group. An intermediate layer and inner layer of the hollow fiber membranes contain substantially no synthetic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.