Device and method for multi-phase radio-frequency ablation

Details Device and method for multi-phase radio-frequency ablation Device and method for multi-phase radio-frequency ablation

2006-12-19

2006-12-19

Schaetzle, Kennedy (Department: 3766)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Thermal applicators

C607S102000, C607S148000, C606S031000, C606S042000

Reexamination Certificate

active

07151964

ABSTRACT:
Multi-phase RF ablation employing a two-dimensional or three-dimensional electrode array produces a multitude of currents paths on the surface of the ablation zone. This results in a uniform lesion with a size defined by the span of the electrode array. An orthogonal electrode catheter array suitable for cardiac ablation is used in conjunction with a two-phase RF power source to produce uniform square-shaped lesions of size 1.2 cm2. Lesions of larger size are created by successive adjacent placement of the square-shaped lesions. A temperature sensor at the electrode tip allows monitoring of ablation temperature and regulation of thereof to minimize the electrode tips from being fouled by coagulum. In another embodiment, an external auxiliary electrode is used in combination with the catheter electrodes. This also produces lesions of greater depth. In yet another embodiment, ablation is performed with a sequence of elementary electrode-electrical configurations.

REFERENCES:
patent: 4365639 (1982-12-01), Goldreyer
patent: 4565200 (1986-01-01), Cosman
patent: 4660571 (1987-04-01), Hess et al.
patent: 4940064 (1990-07-01), Desai
patent: 4966597 (1990-10-01), Cosman
patent: 5083565 (1992-01-01), Parins
patent: 5122137 (1992-06-01), Lennox
patent: 5156151 (1992-10-01), Imran
patent: 5383917 (1995-01-01), Desai et al.
patent: 5620481 (1997-04-01), Desai et al.
European Patent Office, “Partial European Search Report”, corresponding application EP03024531, Nov. 26, 2003, 2 pages.

Affiliated with

Also associated with

Rating

Device and method for multi-phase radio-frequency ablation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device and method for multi-phase radio-frequency ablation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for multi-phase radio-frequency ablation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3716714