Energy transport into the closed chest from a set of very-large mutually orthogonal coils

It is shown that high levels of energy can be transported by inductive coupling from a set of three very-large mutually orthogonal coils which are fixed in space to a single receiving coil inside the chest cavity or buried within the chest wall of an animal which is free to move about within a restricted portion of the field established by the coil set. Coil-excitation conditions and energy-transport-efficiency relationships are derived.