METHODS AND DEVICES FOR ABLATION

摘要

An ablating device and method. The method includes providing an ablating device (38) having a plurality of ultrasound ablating elements (76) into an epicardal space, directing ultrasound energy at a first frequency for a first plurality of time periods, and directing ultrasound energy for a second plurality of time periods. Also, devices and methods for measuring a cardiac ablation length, and a device a movable cover with a flowable substance are disclosed.