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WIRELESS POWERED CONTACT LENS WITH GLUCOSE SENSOR

  • US 20120245444A1
  • Filed: 02/21/2012
  • Published: 09/27/2012
  • Est. Priority Date: 11/07/2007
  • Status: Active Grant
First Claim
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1. A powered contact lens formed from a transparent substrate shaped to be worn directly over a user'"'"'s eye, the contact lens comprising:

  • (a) an annular antenna disposed at a margin of the contact lens, wherein the antenna is configured to both receive a power signal and transmit a data signal;

    (b) a biosensor module configured to measure a characteristic of the user'"'"'s eye, the biosensor module comprising and electrochemical sensor comprising;

    (i) a working electrode;

    (ii) a counter electrode;

    (iii) a reference electrode; and

    (iv) a biosensor circuit configured to measure the voltage of the working electrode, the counter electrode, and the reference electrode, and to transmit a biosensor signal;

    wherein the working electrode, the counter electrode, and the reference electrode are all configured to be in electronic communication when the contact lens is worn on the user'"'"'s eye; and

    (c) a communications module configured to;

    (i) process the power signal from the antenna to provide operational power to the biosensor module; and

    (ii) process the biosensor signal to provide the data signal to the antenna.

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