Various different implementations of lead systems are disclosed for use with implantable stimulation systems. Generally, the lead systems incorporate, within an elongate lead body, one or more electrical conduits that connect to one or more distal electrodes, and a liquid-filled pressure transmission...http://www.google.de/patents/US7945324?utm_source=gb-gplus-sharePatent US7945324 - Pressure sensing lead systems for implantable stimulators
