Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical energy applicator
Patent
1997-07-22
1999-09-28
Peffley, Michael
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical energy applicator
606 34, 606 42, 607101, A61B 1739
Patent
active
059579692
ABSTRACT:
A tunable microwave ablation catheter system is disclosed which matches the impedance of its power supply with the transmission line to minimize reflected power and optimize energy delivery to targeted tissues. The tuner itself may be located in the power supply, the transmission line or the antenna. Tuner mechanisms at these locations can change the antenna configuration, move material relative to the antenna or alter the waveguide. A controller monitors the catheter system operation. A method of medical treatment is disclosed where the impedances of the components of the systems are adjusted during use to compensate for impedance variations.
REFERENCES:
patent: 4244371 (1981-01-01), Farin
patent: 4416276 (1983-11-01), Newton et al.
patent: 4494539 (1985-01-01), Zenitani et al.
patent: 4641649 (1987-02-01), Walinsky et al.
patent: 4657015 (1987-04-01), Irnich
patent: 4841990 (1989-06-01), Kikuchi et al.
patent: 4924863 (1990-05-01), Sterzer
patent: 4945912 (1990-08-01), Langberg
patent: 5019076 (1991-05-01), Yamanashi et al.
patent: 5045056 (1991-09-01), Behl
patent: 5100388 (1992-03-01), Behl et al.
patent: 5150717 (1992-09-01), Rosen et al.
patent: 5172699 (1992-12-01), Svenson et al.
patent: 5188122 (1993-02-01), Phipps et al.
patent: 5246438 (1993-09-01), Langberg
patent: 5248312 (1993-09-01), Langberg
patent: 5300068 (1994-04-01), Rosar et al.
patent: 5300099 (1994-04-01), Rudie
patent: 5507743 (1996-04-01), Edwards et al.
patent: 5628771 (1997-05-01), Mizukawa et al.
Langberg, Catheter Ablation of the Atrioventricular Junction Using a Helical Microwave Antenna: A Novel Means of Coupling Energy to the Endocardium, Departments of Medicine, University of California, San Francisco, CA, Dec. 1991, vol. 14, pp. 2105-2113.
Wu et al., "Performance characteristics of a helical microwave interstitial antenna for local hyperthermia," Mar./Apr. 1987, Medical Physics, vol. 14, No. 2.
Grundy David Alan
Mead R. Hardwin
Warner Glen Grant
Fidus Medical Technology Corporation
Peffley Michael
LandOfFree
Tunable microwave ablation catheter system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tunable microwave ablation catheter system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunable microwave ablation catheter system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-697253