Apparatus for concurrently oxgenating and pumping blood circulated extra-corporeally in cardiovascular systems
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United States of America Patent
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May 5, 1992
Grant Date -
N/A
app pub date -
Mar 10, 1988
filing date -
Mar 25, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for concurrently oxygenating and pumping blood circulated extra-corporeally in vascular assistance includes at least one blood-oygenating fluid interface permeable to gas and impermeable to blood. The interface is provided within a container to define an exchange area between a first circulation space for blood and a second circulation space for an oxygenating fluid. A pressure control device is provided for periodically varying the pressure of an oxygenating fluid acting on the interface within the second circulation space. As a result, the oxygenated blood in the first circulation space is pumped therefrom through the oxygenated blood outlet concurrently during oxygenation of blood within the first circulation space.
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