one side of tines of the electrode was sheared before implanted. 普通心室电极在置入前均剪去电极头端的一侧翼。
in another, an electrode that blocks pain signals, reducing them to a mere tingling sensation, is surgically implanted. 另一个办法：通过外科手术植入一个电极，它能截断痛感信号，将这些信号减少到仅仅是一种麻刺感觉。