04484579 is referenced by 174 patents and cites 10 patents.

A commissurotomy catheter and method for separating fused heart valve leaflets using the catheter is disclosed. The catheter is comprised of a lumen having at least two inflatable balloons at its operational end and at least one cutting edge between the balloons. To separate the fused leaflets the catheter is positioned within the heart so that it extends through the fused leaflets with a balloon on either side of the leaflets. Then the balloons are inflated which forces the cutting edge against the fissure between the fused leaflets and separates them. After separation the balloons are deflated and the catheter is removed.

Title
Commissurotomy catheter apparatus and method
Application Number
6/399864
Publication Number
4484579
Application Date
July 19, 1982
Publication Date
November 27, 1984
Inventor
P S Reddy
Pittsburgh
PA, US
Frank Meno
Pittsburgh
PA, US
Agent
Arnold B Silverman
Assignee
University of Pittsburgh
PA, US
IPC
A61F 17/32
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