Surgery – Instruments – Electrical application
Patent
1997-10-30
1999-07-27
Peffley, Michael
Surgery
Instruments
Electrical application
606 48, 606 42, 607101, 607102, A61B 1739
Patent
active
059282290
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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Gough Edward J.
Stein Alan A.
Peffley Michael
Rita Medical Systems, Inc.
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