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Demagnetized implant for magnetic resonance imaging

  • US 7,609,061 B2
  • Filed: 07/11/2008
  • Issued: 10/27/2009
  • Est. Priority Date: 07/13/2007
  • Status: Active Grant
First Claim
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1. A method of operating a magnetic resonance imaging (MRI) system, the method comprising:

  • a. demagnetizing a magnetic element in an implanted medical device by exposing it to an external demagnetizing magnetic field;

    b. performing magnetic resonance imaging of the patient while or after exposing the magnetic element to the demagnetizing field; and

    c. remagnetizing the magnetic element without removing it from the implanted medical device by exposing the magnetic element to an external remagnetizing magnetic field.

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