| 摘要 |
The invention is an intravascular device for the formation of linear lesions which has particular utility in the treatment of atrial fibrillation, and flutter. The intravascular device has an outer delivery member (11) with a distal section which has an elongated opening (28), and a support element (26) co-extending with the opening. An EP device (12) having a plurality of electrodes (32) on its distal section is slide disposed within the inner lumen of the delivery member but it is secured by its distal end within the distal extremity of the delivery member at least while in operation. In this manner an axial force in the proximal direction on the proximal extremity of the EP device, which extends out of the patient during the procedure, will cause the distal shaft section of the delivery shaft along an inner side of the curved distal section, and engage the surface of the patient's heart chamber. RF electrical energy delivered to the electrodes on the distal shaft section of the EP device will form a linear lesion which terminates the fibrillation or flutter.
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