Multiple antenna ablation apparatus
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United States of America Patent
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Nov 4, 1997
Grant Date -
N/A
app pub date -
Aug 15, 1995
filing date -
Nov 8, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
An ablation apparatus has a multiple antenna device of adjustable length including an adjustable length primary antenna and an adjustable length secondary antenna. The primary antenna has a longitudinal axis, and the secondary antenna is deployed in a direction lateral to the longitudinal axis. The secondary antenna is constructed to be structurally less rigid than the primary antenna. The adjustable lengths of the primary and secondary antennas permits a desired geometric ablation of a selected tissue mass. An adjustable insulation sleeve is positioned on an exterior of one of the primary or secondary antennas. An energy source is connected to the multiple antenna device. A variety of energy sources can be used including RF, microwave and laser.
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