Multiple antenna ablation apparatus and method
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United States of America Patent
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-
Sep 30, 1997
Grant Date -
N/A
app pub date -
Dec 19, 1995
filing date -
Aug 15, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ablation treatment apparatus has a multiple antenna device with a primary antenna and a secondary antenna. The secondary antenna is positioned in a lumen of the primary antenna as the primary antenna is introduced through tissue to a selected tissue site. At the tissue site the secondary antenna is deployed from the primary antenna in a lateral direction relative to a longitudinal axis of the primary antenna. At least a portion of a distal end of the secondary antenna is structurally less rigid than the primary antenna. The primary antenna is constructed to be rigid enough to be introduced and advanced through tissue. A cable couples the energy source to one or more of the antennas.
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