Patent ID: 8712543

Claim:
A device that can be temporarily introduced in a body or permanently implanted in the body, comprising: at least one elongated electric function conductor configured to transmit treatment signals or diagnostic signals, or both, and further comprising a connector, which is connected to the at least one elongated electric function conductor and disposed on a proximal end of the at least one elongated electric function conductor, and configured to connect the device to a further device; at least one further conductor; wherein the at least one elongated electric function conductor and the at least one further conductor comprise an inner conductor and an outer conductor respectively, such that the outer conductor surrounds the inner conductor; and wherein said at least one elongated electric function conductor and said at least one further conductor comprise a characteristic impedance between the at least one elongated electric function conductor and the at least one further conductor; and a transition region from the at least one elongated electric function conductor to the connector that is configured such that said characteristic impedance between the at least one elongated electric function conductor and the at least one further conductor is configured to vary continuously through the transition region between a corresponding characteristic impedance of the device in a section located distal of the transition region and the characteristic impedance located proximal to the transition region when the connector is connected to said further device; wherein the connector comprises a distal section, a pin-shaped contact and a ring-shaped contact, such that the pin-shaped contact electrically connects to the inner conductor, the ring-shaped contact electrically connects to the outer conductor, and the distal section connects to the inner conductor and the outer conductor forming the transition region; wherein the transition region of the device comprises a filling, which alters the characteristic impedance and wherein properties and form of said filling are configured so that the desired characteristic impedance exists in the transition region; and wherein a volume of the filling increases in the region of the ring-shaped contact in a direction towards the proximal end.