| 摘要 |
In one embodiment the present invention comprises an ultrasonic polyp snare adapted to grasp, cut and coagulate polyps and other tissue masses in internal body lumens, specifically in the colon. An ultrasonic polyp snare according to the present invention includes an ultrasonic signal generator attached to the proximal end of a flexible ultrasonic waveguide. An ultrasonic vibration amplifier is coupled to the distal end of the flexible ultrasonic waveguide. An ultrasonic blade is coupled to the ultrasonic amplifier. An ultrasonic attenuator is coupled to the distal end of the ultrasonic blade. And, a snare wire is positioned adjacent at least a portion of the ultrasonic blade.
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