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Tank filters placed in series with the lead wires or circuits of active medical devices to enhance MRI compatibility

  • US 7,945,322 B2
  • Filed: 11/09/2006
  • Issued: 05/17/2011
  • Est. Priority Date: 11/11/2005
  • Status: Expired due to Fees
First Claim
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1. A medical therapeutic device, comprising:

  • an active medical device including electronic circuitry for therapy delivery or detection of biological signals, an electrode, and an electrical conductor for connecting the electrode to the electronic circuitry;

    a tank filter placed in series with the conductor and having electrical inductance in parallel with capacitance, whereby the tank filter attenuates current flow over a range of frequencies; and

    an RFID chip associated with the active medical device or the electrical conductor or the electrode for identifying the presence of the tank filter in the active medical device or the electrical conductor or the electrode.

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