Ultrasonically enhanced RF ablation catheter

Details Ultrasonically enhanced RF ablation catheter Ultrasonically enhanced RF ablation catheter

1989-04-13

1990-06-26

Cohen, Lee S.

Surgery

Truss

Pad

604 22, 606 48, 606 50, A61B 800, A61B 1739

Patent

active

049362810

ABSTRACT:
An electrosurgical angioplasty catheter with ultrasonic enhancement is described. It comprises an elongated, flexible plastic tubular body having located at its distal tip an electrode structure for effecting rf cutting along with a transducer for ultrasonically driving the rf cutting electrodes and the support thereof. The electronics module for driving the cutting electrodes and the ultrasonic transducer also includes means for receiving echo signals picked up by the transducer whereby Doppler flow readings and ultrasound imaging of the blood vessel being worked upon can be obtained.

REFERENCES:
patent: 3942530 (1976-03-01), Northered
patent: 4674498 (1987-06-01), Stasz
patent: 4682596 (1987-07-01), Bales et al.
patent: 4750902 (1988-06-01), Wuchinich et al.
patent: 4802476 (1989-02-01), Noerenberg et al.
patent: 4870953 (1989-10-01), DonMicheal

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