Integrated membrane oxygenator, heat exchanger and reservoir
US4876066A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1987 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Jul 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/03
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A membrane oxygenator includes an upper nested arrangement of a hard shell venous reservoir, a bowl-like defoamer within the reservoir and a heat exchanger coil vertically supported within the defoamer, and includes a membrane oxygenator unit mounted on the bottom of the upper arrangement. The oxygenator unit includes an inlet chamber with a tangential inlet providing swirling blood flow to dislodge air bubbles and centrifuge air to an upper center region of an inlet chamber where gas is exhausted through a vent. A bottom blood outlet chamber of the blood oxygenator unit has a relatively thin vertical cross-sectional area such that priming flow velocity therein discharges all air from the outlet chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.