An intracorporeal device includes a helically wound coil having a plurality of windings having an outer perimeter and forming a coil length and a plurality of joining elements disposed on only a portion of the outer perimeter and along the coil length. Each joining element couples two coil windings....http://www.google.de/patents/US7833175?utm_source=gb-gplus-sharePatent US7833175 - Medical device coil
