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Wearable Glucometer

  • US 20070249916A1
  • Filed: 01/15/2005
  • Published: 10/25/2007
  • Est. Priority Date: 01/15/2004
  • Status: Abandoned Application
First Claim
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1. Apparatus for assaying an analyte in blood in a patient'"'"'s blood vessel comprising:

  • a light provider comprising at least one light source that illuminates a tissue region in which a blood vessel is located with light that stimulates photoacoustic waves in the region;

    at least one acoustic transducer that generates signals responsive to the photoacoustic waves;

    a controller that receives the signals and processes them to determine which are responsive to photoacoustic waves that originate in the blood vessel and uses the determined signals to assay the analyte;

    wherein, the light provider and at least one transducer define a field of view that overlaps the blood vessel, said field of view having a central region and a lateral extent greater than about 4 mm.

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