Tumor ablation apparatus
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United States of America Patent
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Jul 27, 1999
Issued Date -
N/A
app pub date -
Oct 30, 1997
filing date -
Nov 8, 1993
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An ablation apparatus has a multiple antenna device with a primary antenna and a secondary antenna positionable in a lumen of the primary antenna. The secondary antenna is at least partially deployable from the primary antenna in a lateral direction relative to a longitudinal axis of the primary antenna with at least one radius of curvature. A distal end of the primary antenna is sufficiently sharp to pierce tissue. The primary and secondary antennas are configured to provide a selectable geometric ablation of a selected tissue mass. An insulation sleeve is positioned on an exterior of the primary antenna. One or more cables are coupled to the multiple antenna device.
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