Patent ID: 8901775
Filing Date: 2014-12-02
Classification: A61M,H01F,H02J

Abstract:
1. An apparatus for use in wireless energy transfer to power a medical device, the apparatus comprising: a transmitting assembly configured to transmit electromagnetic energy, the transmitting assembly comprising, a receiving assembly magnetic resonance coupled to the transmitting assembly, the receiving assembly comprising, wherein a first capacitor is electrically connected to said first conductor and a second capacitor is electrically connected to said second conductor; and wherein said first conductor and/or second conductor has a thickness T, smaller than a width W of said first conductor and/or second conductor, such that every point within said first conductor and/or second conductor resides within a skin depth at a resonant frequency of said transmitting resonant coil and/or receiving resonant coil, wherein the skin depth is defined by where δ is the skin depth, ρ is a resistivity of said first conductor and/or second conductor, f is the resonant frequency, and μ is an absolute magnetic permeability of said first conductor and/or second conductor; wherein said thickness T is less than 0.02 inches and said width W is 0.5 inch or less; and wherein said transmitting and/or receiving resonant coil has a diameter of 3 inches or less.