05860974 is referenced by 727 patents and cites 38 patents.

An expandable ablation electrode is provided on a catheter constructed to access the heart. When the electrode is introduced to the heart, it is small and suitably flexible to maneuver through the torturous path. However, when the catheter is in place in the heart, the electrode is expansible in diameter to a substantially larger dimension, and is relatively rigid, enabling a large conductive surface to press against the heart tissue with the desired contact pressure. When RF energy is then applied to the electrode it produces a burn lesion of desired large size and depth. This overcomes the limitations to size that have been encountered using conventional rigid electrodes.

Title
Heart ablation catheter with expandable electrode and method of coupling energy to an electrode on a catheter shaft
Application Number
86543
Publication Number
5860974
Application Date
February 11, 1997
Publication Date
January 19, 1999
Inventor
John E Abele
Concord
MA, US
Agent
Lyon & Lyon
Assignee
Boston Scientific Corporation
MA, US
IPC
A61N 1/05
A61B 5/042
A61B 17/39
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