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Catheter with distally distending balloon

  • US 6,264,631 B1
  • Filed: 08/11/1999
  • Issued: 07/24/2001
  • Est. Priority Date: 02/12/1998
  • Status: Expired due to Fees
First Claim
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1. A balloon catheter comprising:

  • an elongate shaft comprising;

    a distal tip, a fliuid lumen for fluid communication with a body cavity, a circumference, and an inflation lumen for fluid communication with a balloon; and

    a balloon attached at opposing ends to the elongate shaft so as to be disposed at the distal tip of the elongate shaft said balloon disposed coaxially about the shaft and attached to the circumference cooperatively to form an enclosure and further comprising at least one biasing ring extending radially about the circumference of the balloon, said biasing ring being configured to limit radial expansion of the balloon to bias the periphery of the balloon in the direction of the tip.

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