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Catheter pump

  • US 8,597,170 B2
  • Filed: 01/04/2012
  • Issued: 12/03/2013
  • Est. Priority Date: 01/05/2011
  • Status: Active Grant
First Claim
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1. A catheter assembly for a heart pump, comprisinga flexible catheter body having a proximal end and a distal end and defining a plurality of lumens therethrough, the catheter body being sufficiently flexible to extend from a peripheral access to a patient'"'"'s heart;

  • an impeller assembly having an impeller and a housing comprising a hypotube sized to be disposed over a distal portion of the catheter body, the hypotube having at least one barb disposed distally such that the barb engages a portion of the catheter assembly disposed inward of the hypotube when tensile forces are applied to opposite ends of the catheter assembly, to enhance the security of the connection between the catheter body and the impeller assembly under such tensile forces.

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