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Perfusion balloon catheter having a magnetically driven impeller

  • US 6,129,704 A
  • Filed: 02/17/1998
  • Issued: 10/10/2000
  • Est. Priority Date: 06/12/1997
  • Status: Expired due to Term
First Claim
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1. A perfusion balloon catheter comprising:

  • a first shaft having proximal and distal portions, a wall, one or more first apertures through the wall, a balloon disposed on the shaft distal of the first apertures,an inflation lumen in communication with the balloon, and a perfusion lumen in communication with the first apertures;

    at least one impeller disposed in the perfusion lumen, the impeller having a predetermined shape and one or more magnets disposed thereon, the magnets adapted to magnetically couple with a magnetic source spaced away from the perfusion balloon catheter and adapted to cause rotation of the impeller anda second shaft disposed in the first shaft, through the impeller, and extending distal thereof, the second shaft having proximal and distal portions and a wall, the wall having one or more apertures in the distal portion of the second shaft, and one or more apertures distal of the impeller, a perfusion lumen disposed in the second shaft between the apertures and being in communication therewith.

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