Intravascular blood pumps and methods of manufacture and use
OwnerMichael CALOMENI, Brian D. BRANDT +2inventors
InventorsMichael CALOMENI, Brian D. BRANDT, Daniel HILDEBRAND, Tom SAUL
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Abstract
Catheter blood pump that include an expandable pump portion extending distally from an elongate shaft. The pump portions include an expandable impeller housing including an expandable blood conduit that defines a blood lumen between an inflow and an outflow. The pump portions include one or more expandable impellers disposed at least partially within the blood lumen.
Claims37
(canceled)
A catheter blood pump, comprising:
- an expandable pump portion extending distally from an elongate shaft, the pump portion including
- an expandable impeller housing including an expandable blood conduit that defines a blood lumen between an inflow and an outflow, and
- an inflatable in fluid communication with a fluid pathway extending proximally from the expandable impeller housing, the inflatable secured relative to the blood conduit and positioned to provide radial support to the blood conduit when the inflatable is inflated;
- and
- one or more expandable impellers, each of which are disposed at least partially within the blood lumen and adapted to move blood through the blood conduit.
The catheter blood pump of 2, wherein the expandable impeller housing comprises more than one inflatable, the more than one inflatable have helical configurations, and are configured such that they are disposed in between one another along at least a portion of the blood conduit.
Dependencies are inferred from the claim text.