Methods and devices for creating electrical block at specific sites in cardiac tissue with targeted tissue ablation
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United States of America Patent
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Sep 4, 2007
Grant Date -
Apr 28, 2005
app pub date -
Oct 22, 2004
filing date -
Oct 24, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In one embodiment, the present invention provides a bipolar ablation device with multiple needle electrodes that penetrate a desired target tissue. These electrodes may be arranged in a variety of therapeutically effective arrangements, such as a comb-like shape, a multi-needle wheel, or an expanding bow design. By contacting and preferably penetrating the cardiac tissue with bipolar electrodes, a user can more precisely create ablation-induced scarring and thus electrical block at desired target locations without causing unwanted damage and related complications.
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