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Therapeutic porous balloon catheter

  • US 5,213,576 A
  • Filed: 06/11/1991
  • Issued: 05/25/1993
  • Est. Priority Date: 06/11/1991
  • Status: Expired due to Term
First Claim
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1. A balloon catheter which comprises a catheter shaft, first and second balloons carried on said catheter shaft with said second balloon positioned to at least partly overlie and sealingly enclose said first balloon;

  • a lumen defined by said catheter shaft which communicates between a space located within said first balloon and a proximal end portion of said catheter shaft;

    said first and second balloons defining holes of a size to permit medication delivered through said lumen to pass outwardly through the perforations of both the first and second balloons.

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