Ablation device for lead extraction and methods thereof

Details Ablation device for lead extraction and methods thereof Ablation device for lead extraction and methods thereof

1998-09-28

2000-03-07

Peffley, Michael

Surgery

Instruments

Electrical application

607108, 606 45, A61B 1818

Patent

active

060334029

ABSTRACT:
An improved lead extraction system using a retractable inner catheter having an electrode means comprising memory-shaped Nitinol sheet members and a RF current generator to raise the temperature to above the transitional shape-change temperature of the Nitinol with a sharp cutting edge. The lead extraction system is useful for the extraction and the removal of unwanted lead by a minimal invasive procedure. In another embodiment, fluid infusion and irrigation means at its distal tip section and an electrode means for loosening the target scar tissue by applying radiofrequency energy and cooled fluid to the said electrode and its contacted tissue.

REFERENCES:
patent: 5423806 (1995-06-01), Dale et al.
patent: 5620451 (1997-04-01), Rosborough
patent: 5674217 (1997-10-01), Wahlstrom et al.
patent: 5697936 (1997-12-01), Shipko et al.
patent: 5779715 (1998-07-01), Tu
patent: 5980515 (1999-11-01), Tu

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