An apparatus having a support structure, a plurality of longitudinally spaced conductive regions, and an actuation device including at least one electrical contact located within the support structure and movable between respective positions where the one electrical contact is in electrical connection...http://www.google.de/patents/US6666864?utm_source=gb-gplus-sharePatent US6666864 - Electrophysiological probes having selective element actuation and variable lesion length capability
