A catheter assembly comprises a sheath, which includes a side wall enclosing an interior bore, a distal region, and an opening in the sidewall. The assembly also comprises a bendable catheter tube, which is carried for sliding movement in the interior bore. The catheter tube has a distal portion. The...http://www.google.co.uk/patents/US6071274?utm_source=gb-gplus-sharePatent US6071274 - Loop structures for supporting multiple electrode elements
