Patent ID: 8862246

Claim:
An implantable medical device, comprising an electrode lead with a central axis compromising a shared insulating sheathing; a functional lead connected to a functional electrode pole, wherein said functional lead comprises an internal conductor and an external conductor, and is configured to dispense therapeutic signals or to detect diagnostic signals; and, an additional lead coupled to the functional lead, wherein said additional lead comprises at least one second electrical conductor, wherein said additional lead is guided with the functional lead in said shared insulating sheathing, such that a coupling is formed between the functional lead and the additional lead to input electromagnetic radiofrequency waves guided in the functional lead at least partially into the additional lead; wherein said additional lead is inductively and capacitively coupled to said external conductor of said functional lead; wherein said inductive coupling between said additional lead and said external conductor comprises a helical winding of said external conductor and said additional lead; and, wherein said capacitive coupling between said additional lead and said external conductor comprises said external conductor and said additional lead wound co-radially side by side with respect to said central axis of said electrode lead, and wherein said external conductor is electrically insulated from said additional lead.