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Heart assist device with expandable impeller pump

  • US 9,717,833 B2
  • Filed: 06/08/2016
  • Issued: 08/01/2017
  • Est. Priority Date: 09/17/2004
  • Status: Active Grant
First Claim
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1. A catheter pump comprising:

  • a cannula having an inlet and an outlet;

    an impeller disposed in the cannula, the impeller sized and shaped to be inserted into a heart of a patient; and

    a stator disposed downstream of the impeller in the cannula between the impeller and the outlet, the stator comprising a stationary blade configured to reduce swirl velocity from discharge flow from the impeller,wherein the stationary blade comprise an expanded state and wherein a proximal edge of the stationary blade is inclined distally in the expanded state.

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