Cannulae for selectively enhancing blood flow
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United States of America Patent
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Issued Date -
Jun 16, 2005
app pub date -
Dec 12, 2003
filing date -
Dec 12, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A perfusion cannula system for directing blood through the vasculature of a patient comprises a cannula body having a proximal end, a distal end, and at least one lumen extending therebetween. The perfusion cannula system enhances blood flow past the cannula when the cannula body resides within the patient. A first balloon can be located on an exterior surface of the cannula body and the balloon can be deployed within the vasculature whereby space may be provided between a vessel wall and the cannula body. A cannula body can have an aperture formed therein in fluid communication with a lumen. A sleeve can be carried by the cannula and can be configured to be moveable relative to the aperture to selectively cover and uncover the aperture as desired.
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