Wireless energy transfer for medical applications

  • US 9,662,161 B2
  • Filed: 12/12/2014
  • Issued: 05/30/2017
  • Est. Priority Date: 09/27/2008
  • Status: Active Grant
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First Claim
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1. A wirelessly powered surgical device comprising:

  • a device resonator configured to generate an oscillating voltage from a captured oscillating magnetic field; and

    a surgical tool electrically coupled to the device resonator, the surgical tool having a functional output that is capable of being directly powered by the oscillating voltage, and the surgical tool having a rechargeable battery backup;

    wherein the oscillating voltage is at least 30 volts and has a frequency of at least 1 kHz;

    wherein the wirelessly powered surgical device comprises a robot comprising;

    the device resonator and the surgical tool;

    a source resonator to generate the captured oscillating magnetic field;

    an energy storage system; and

    an additional device resonator configured to receive power wirelessly from a wireless source separate from the robot.

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