A device guiding disc to direct discs to a desired location includes a guiding passageway for guiding and aligning the individual discs at an exit position. AMC combines voice messaging with features such as tagging and threading of voice strings on a recipient device. In one embodiment, the method includes tunneling to a tissue site with one electrode, and cutting with a second electrode to obtain the tissue specimen. A guide portion is formed at a left edge portion of the communication opening such that the guide portion projects from a lower surface of the partition member into the lower space so as to guide the refrigerant toward the right end side. A vector normal to the first tapered surface has a first component vector extending in the movement direction. An anti-discharge member for preventing occurrence of an electric discharge on the periphery of the first electrode layer is provided only on the periphery of the first electrode layer.