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Self-venting balloon dilatation catheter and method

  • US 4,638,805 A
  • Filed: 07/30/1985
  • Issued: 01/27/1987
  • Est. Priority Date: 07/30/1985
  • Status: Expired
First Claim
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1. In a self-venting balloon dilatation catheter, a flexible tubular member having first and second lumens extending therethrough, an inflatable balloon carried by the distal extremity of the tubular member in such a manner so that the first lumen extends through the balloon and is out of communication with that interior of the balloon and the second lumen is in communication with the distal extremity interior of the balloon and means disposed between the balloon and the tubular member for venting air from the interior of the balloon but inhibiting the escape of liquid from the balloon.

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