Soft shell venous reservoir with improved air handling
US6773426B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Jul 11, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/03
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Venous reservoirs are interposed between the patient and the arterial pump and serve to remove air bubbles and provide compliance that accommodates variations in the volume of blood circulating in the extracorporeal circuit during cardiopulmonary bypass (CPB). The invention is a reservoir that incorporates automated means to remove air bubbles from the venous line prior to the blood entering the arterial blood pump. In form, the reservoir includes means that handle foam prior to the blood entering the blood pump. In another form, the invention provides means that improve air removal in a soft shell venous reservoir. These features are applicable to CPB circuits using gravity drainage or vacuum assisted venous drainage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.