Electromagnetic Interference in Brain Implants Using Multiple Coils: Biosafety and Data Communication Performance

This letter investigates the use of multiple coils for the powering of and the data communication to brain implants. It studies the limits imposed by these coils in terms of biosafety and interference in the communication channels caused by neighboring and misaligned coils. Simulations using the CST Studio voxel head model are used to assess the associated health risks as well as the resilience of the proposed data communication scheme.