Device and method for tissue ablation using bipolar radio-frequency current
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United States of America Patent
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Oct 3, 2006
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app pub date -
Oct 25, 2004
filing date -
Nov 12, 2003
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Abstract
A device for tissue ablation comprises plural arrays of segmented needle electrodes, each of which contains a plurality of electrically conductive segments, a plurality of non-conductive joints, and a needle tip. Each of the electrically conductive segments is wired to a radio-frequency electrical power source and can be connected to and disconnected from the power source. After the needle electrodes of the device are penetrated into a target tissue to be ablated, the intended volume of ablation can be configured in three dimensions. Thus, the device allows physicians to effectively control ablation boundaries.
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