Inflow cannula and blood flow assist system
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United States of America Patent
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Aug 1, 2017
Grant Date -
May 4, 2017
app pub date -
Oct 28, 2015
filing date -
Oct 28, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method of drawing blood from the heart of a patient. The system includes a blood pump, an outflow cannula, and a flexible cannula assembly. The flexible cannula assembly includes a cannula body, a tip, and first and second anchors. The cannula body includes a proximal end coupled to the inlet of the blood pump, a distal end including a first locking element coupled to the tip. The first anchor has a first plurality of arms and is coupled to the tip and adapted to engage the internal surface of the heart wall. The second anchor includes a second plurality of arms and a second locking element and is slidably positioned on the outer wall of the cannula body and adapted to engage the first locking element of the distal end of the cannula body to couple the second anchor to the external surface of the heart wall.
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