Surgery – Instruments – Electrical application
Patent
1995-12-19
1997-09-30
Bahr, Jennifer
Surgery
Instruments
Electrical application
606 42, 606 48, 606 45, 607101, 607102, A61B 1739
Patent
active
056721730
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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Gough Edward J.
Stein Alan A.
Bahr Jennifer
Peffley Michael
Rita Medical Systems, Inc.
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