Method and device for removal of radiocontrast media from blood
US7163520B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2003 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Oct 15, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3331
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An extracorpeal blood circuit for removal of contrast from human blood using a filter and withdrawal filter pump and a by-pass pump. The withdrawal filter blood pump operates when a contrast bolus has been detected. Otherwise the bypass blood pump maintains physiological blood flow from the coronary sinus preventing the need for deflation and re-inflation of the balloon catheter. When contrast is detected blood the bypass blood pump is stopped to prevent contrast from leaking back into the patients circulatory system via the bypass pump and CS blood flow is maintained at its physiological blood flow resulting in the heart being oblivious to the transition by the prefilter blood pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.