RF ablation probe with unibody electrode element

Details RF ablation probe with unibody electrode element RF ablation probe with unibody electrode element

2004-09-24

2008-12-02

Cohen, Lee S (Department: 3739)

Surgery

Instruments

Electrical application

Reexamination Certificate

active

07458971

ABSTRACT:
An ablation probe and method of manufacturing the ablation probe are provided. The probe comprises a probe shaft and a unibody electrode element. The unibody electrode element comprises a common electrode base located at the distal end of the shaft, and a plurality of electrode tines distally extending from the electrode base. The electrode element may be created by forming divisions (such as slits or slots) from a first end of an electrically conductive elongate member towards an opposing second end of the elongate member. Alternatively, the divisions can be formed from a first end of an electrically conductive sheet towards an opposing second end of the sheet, and then bent or rolled to form the elongate member. In either case, the common electrode base can either be separately mounted to a probe shaft, or the probe shaft can be formed from the elongate member, in which case, the electrode base will be integrated with the probe shaft as a unibody structure. The electrode tines can be optionally shaped, e.g., to proximally evert.

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PCT International Search Report for PCT/US2005/030299, Applicant:—Boston Scientific Scimed, Inc., Forms PCT/ISA/210 and 220, dated Jan. 10, 2006 (7 pages).
PCT Written Opinion of the International Search Authority for PCT/US2005/030299, Applicant:—Boston Scientific Scimed, Inc., Form PCT/ISA/237, dated Jan. 10, 2006 (6 pages).

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