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Low profile perfusion catheter

  • US 5,571,089 A
  • Filed: 12/16/1994
  • Issued: 11/05/1996
  • Est. Priority Date: 06/30/1993
  • Status: Expired due to Term
First Claim
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1. A drug delivery catheter, comprising:

  • an elongate, flexible tubular body;

    an inflatable drug delivery balloon on the tubular body;

    at least one influent port on the tubular body on a first side of the balloon;

    at least one effluent port on the tubular body on a second side of the balloon, said influent and effluent ports in fluid communication with each other by way of a central lumen through the balloon; and

    an axially movable support within the central lumen, said support movable from a first, proximal position to a second, distal position, wherein at least a portion of the central lumen has a first inside cross-sectional flow area when the support is in the proximal position and a second, larger inside cross-sectional flow area when the support is in the distal position.

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