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Magnetic resonance imaging interference immune device

  • US 6,949,929 B2
  • Filed: 02/17/2004
  • Issued: 09/27/2005
  • Est. Priority Date: 06/24/2003
  • Status: Expired due to Fees
First Claim
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1. A voltage compensation unit for reducing the effects of induced voltages upon a device to a safe level, comprising:

  • a sensing circuit to sense voltages induced in conductive components of the device, the voltages being induced by changing magnetic fields; and

    a compensation circuit, operatively connected to said sensing circuit and responsive thereto, to provide opposing voltages to the device to reduce the effects of induced voltages caused by changing magnetic fields.

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