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Hand held device for wireless powering and interrogation of biomems sensors and actuators

  • US 7,191,013 B1
  • Filed: 11/08/2004
  • Issued: 03/13/2007
  • Est. Priority Date: 11/08/2004
  • Status: Active Grant
First Claim
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1. A compact, hand-held device for wireless powering, interrogation and data retrieval from an implanted sensor, the hand-held device comprising:

  • an antenna for powering the implanted sensor and for receiving data from the implanted sensor to the hand-held device for at least one of storage, display and analysis,wherein the hand-held device establishes electromagnetic coupling at radio frequency with an inductor in the implanted sensor at a predefined separation and the hand-held device allows for the antenna to power, interrogate and retrieve data from the implanted sensor, the hand-held device being at a predefined distance from a human body housing the implanted sensor,wherein the antenna is a multi-turn circular loop antenna whose impedance at approximately 330 MHz is matched to an input impedance from an amplifier in a receiver to increase sensitivity.

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