This is a device used in the occlusion of various lumen and other cavities in the body. In particular, it may be used to form an endovascular occlusion through the application of a radio-frequency modulated voltage to the device after its placement in the body. The elongated device is distally...http://www.google.fr/patents/US5743905?utm_source=gb-gplus-shareBrevet US5743905 - Partially insulated occlusion device
