Method for ablating with needle electrode

Details Method for ablating with needle electrode Method for ablating with needle electrode

2007-04-24

2007-04-24

Rollins, Rosiland (Department: 3739)

Surgery

Instruments

Electrical application

C606S048000, C606S049000, C606S050000, C128S898000

Reexamination Certificate

active

10694118

ABSTRACT:
A method for ablating tissue in or around the heart to create an enhanced lesion is provided. The distal end of a catheter including a needle electrode at its distal end is introduced into the heart. The distal end of the needle electrode is introduced into the tissue. An electrically-conductive fluid is infused through the needle electrode and into the tissue. The tissue is ablated after and/or during introduction of the fluid into the tissue. The fluid conducts ablation energy within the tissue to create a larger lesion than would be created without the introduction of the fluid.

REFERENCES:
patent: 5403311 (1995-04-01), Abele et al.
patent: 5431649 (1995-07-01), Mulier et al.
patent: 6016809 (2000-01-01), Mulier et al.
patent: 6033402 (2000-03-01), Tu et al.
patent: 6866650 (2005-03-01), Stevens et al.
Gaiser, John, “Future Catheter Designs for Interventional Electrophysiology”, Interventional Electrophysiology, Chapter 16, p. 469-532.
Hoey, Michael F., et al. “Intramural Ablation Using Radiofrequency Energy Via Screw-Tip Catheter and Saline Electrode”, PACE, vol. 18, , Apr. 1995, Part II (Abstract).

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