A wireless multi bundle concentric coil for charging the battery of a total artificial heart or a pacemaker

One coil is placed outside the chest and is fed with an electromagnetic field, while monitoring the output on a specifically designed multi-bundle concentric coil to be implanted inside the body. It is assumed that the proposed coil should be easier to implant to the chest wall and is less prone to possible misalignments of the outer and internal coils, easier to isolate with a biocompatible material and most important, the feasibility of a much better heat dissipation scenario. What type of waveform; triangular, square or sinusoidal, is best transformed from the outer coil to the inner on?. Furthermore, investigate the effect of different tissues separating the coils from each other. Different coils with various radiuses and number of turns and shapes were tried in this experimental study. Results from the multi-bundle concentric coils were compared to results from single bundle coils and found to be better if not equal.