Artificial cardiopulmonary circuit system
US6994824B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2002 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Jun 25, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/1698
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
To provide an artificial cardiopulmonary circuit system having high heat resistance and excellent blood compatibility. The artificial cardiopulmonary circuit system includes a hollow fiber membrane oxygenator including a plurality of porous hollow fiber membranes for gas exchange having a blood contact part that contacts blood on one side thereof and a gas contact part that contacts a gas on the other side thereof, and a housing that contains the hollow fiber membranes therein. At least a portion of the blood contact part of the hollow fiber membrane oxygenator is coated with a polymer comprising a repeating unit represented by the following general formula (1) as a main structural component and having a viscosity at 65° C. of 5,000 poise (500 Pa·s)[Chemical Formula 4](Wherein R1 is hydrogen or a methyl group, R2 is an alkylene group having 1 to 4 carbon atoms, and R3 is an alkyl group having 1 to 4 carbon atoms).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.