Ultrasonic material removal system for cardiopulmonary bypass and other applications
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United States of America Patent
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Apr 20, 2010
Grant Date -
Mar 1, 2007
app pub date -
Aug 8, 2006
filing date -
Aug 26, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Devices, systems, and methods manipulate target materials within fluids, and may be useful for removing microbubbles and other materials from blood. Ultrasound or acoustic filtering waves may be directed across a flow of blood, and differences in density between the target microbubbles and the blood may enhance separation by driving the lighter matter upward for removal from the blood stream. A disposable acoustically transmissive conduit can replaceably engage an ultrasound transmitter to facilitate sterilization. Exemplary conduits have elongate lumen cross-sections and an axial path resembling a portion of a Mobius strip.
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