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Implantable lead-based sensor powered by piezoelectric transformer

  • US 7,203,551 B2
  • Filed: 04/25/2003
  • Issued: 04/10/2007
  • Est. Priority Date: 04/25/2003
  • Status: Expired due to Fees
First Claim
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1. An implantable medical device comprising:

  • a battery to deliver a first voltage derived exclusively from the battery, wherein the battery is adapted to be implanted internally relative to a patient'"'"'s skin;

    a piezoelectric transformer to convert the first voltage to a second voltage greater than the first voltage;

    a sensor powered by the second voltage; and

    an implantable lead, wherein the sensor and the piezoelectric transformer are disposed within the implantable lead.

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