Catheter system having a ball electrode

Details Catheter system having a ball electrode Catheter system having a ball electrode

1997-06-02

1998-12-01

Getzow, Scott M.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

606 41, A61N 106

Patent

active

058431527

ABSTRACT:
An improved catheter system having at least one electrode at its tip section, can be used in ablating the arrhythmogenic point of a patient. A catheter suitable for radiofrequency ablation of cardiac tissues comprises a catheter shaft having a distal section, a distal end, a proximal end and at least one lumen extending therebetween, wherein a rotatable ball electrode is disposed at the tip section of said catheter. In one embodiment, the ablation catheter has a temperature sensor and a close-loop temperature control mechanism. In another embodiment, the ablation catheter has fluid infusion and irrigation means at its distal tip section for creating a deep and large lesion by applying radiofrequency energy and cooled fluid to said electrode.

REFERENCES:
patent: 5242441 (1993-09-01), Avitall
patent: 5282844 (1994-02-01), Stokes et al.
patent: 5643255 (1997-07-01), Organ

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