FIG. 2 illustrates an implantable medical device 200 comprising a wireless transcutaneous link according to an embodiment of the disclosure. The medical device 200 includes an external unit and an implantable unit. The external unit includes an electronic unit 204 operationally coupled to a transmitter coil 220 that is configured transmit power and/or data signal over a wireless transcutaneous link, a coil unit comprising a loop structure 210 with the transmitter coil 220 being wound around and along at least a part of length L of the loop structure 210, and a fixation unit 214 configured to attach the loop structure to a user's body (FIG. 3, 306) i) proximal to an implantable receiver coil 212 that is configured to be implanted within a body part (FIG. 3, 310), and ii) around the body part (FIG. 3, 310) of a user such that a part (FIG. 3, 302) of the body part is positioned in a hollow section 218 of the loop structure. The implantable unit includes the implantable receiver coil 212 configured to receive the power and/or data signal over the wireless transcutaneous link, a processing unit 206 configured to i) process the received data signal to control functionalities of at least one of the components of the implantable unit, and/or ii) utilize the received power for operation of at least one of the components of the implantable unit. The wireless transcutaneous link includes a coupling between the transmitter coil 220 and the receiver coil 212, and when the loop structure 210 is attached using the fixation unit 214, at least a substantial number of magnetic field lines 216 generated in response to excitation of the transmitter coil 220 passes through the implantable receiver coil 212.
