{HEAD ~ The implant} 7, wherein {TAIL ~ the switch} provides overvoltage protection as a function of an orientation of the external magnetic field 
wherein
{ HEAD ~ The implant } 7 , wherein { TAIL ~ the switch } provides overvoltage protection as a function of an orientation of the external magnetic field
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH