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BALLOON CATHETER

  • US 3,825,013 A
  • Filed: 03/12/1973
  • Issued: 07/23/1974
  • Est. Priority Date: 03/12/1973
  • Status: Expired due to Term
First Claim
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1. An improved balloon catheter which comprises:

  • an elongated flexible tubular member having a drainage lumen formed therein connected between the proximal end thereof and at least one drainage inlet formed in the distal end thereof;

    an inflatable balloon member positioned adjacent the distal end of said tubular member and attached thereto in a manner such that when inflated said balloon member is distended in directions generally normal to the axis of said tubular member;

    a first passage formed in said tubular member connecting the interior of said balloon member with the proximal end of said tubular member so that an inflating flud can be selectively injected through the first passage into the balloon member or withdrawn therefrom;

    a second passage formed in said tubular member connecting the interior of said balloon member with the proximal end of the tubular member so that deflation of the balloon member can be indicated and accomplished by way of the second passage; and

    an elongated string member disposed within and along the entire length of the second passage, the string member sealing the passage while disposed therein, but opening the passage when extracted therefrom.

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