Multiple antenna ablation apparatus and method with cooling element
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United States of America Patent
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Apr 7, 1998
Issued Date -
N/A
app pub date -
Dec 19, 1995
filing date -
Aug 15, 1995
priority date (Note) -
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Abstract
An ablation apparatus includes a multiple antenna device coupled to an electromagnetic energy source that produces an electromagnetic energy ablation output. The multiple antenna device includes a primary antenna with a lumen and a longitudinal axis, and a secondary antenna deployable from the lumen in a lateral direction relative to the longitudinal axis. At least a distal end of each secondary antenna is structurally less rigid than the primary antenna, and the primary antenna is sufficiently rigid to be introduced through tissue. At least one cable coupling the multiple antenna device to the energy source. A cooling element is coupled to the primary antenna. A variety of energy sources can be used including RF, microwave and laser.
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