A one-piece cylindrical bandstop filter for medical lead systems incorporates parallel capacitive and inductive elements in a compact cylindrical configuration. The compact cylindrical configuration of the bandstop filter does not add significantly to the size or weight of the medical lead system. Preferably,...http://www.google.ca/patents/US7853325?utm_source=gb-gplus-sharePatent US7853325 - Cylindrical bandstop filters for medical lead systems
