A self-curling elongate non-conductive sheet (A) defines a helical cuff electrode (10). A plurality of contact members (40) are linearly disposed along a direction (C) between a first layer (30) and a second layer (32) of laminated elastomeric material. The first layer is stretched along direction (F)...http://www.google.es/patents/US5505201?utm_source=gb-gplus-sharePatente US5505201 - Implantable helical spiral cuff electrode
