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ON-BODY MICROSENSOR FOR BIOMONITORING

  • US 20170128009A1
  • Filed: 01/19/2017
  • Published: 05/11/2017
  • Est. Priority Date: 03/14/2013
  • Status: Active Grant
First Claim
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1. A sensor for sensing analytes present in a body fluid of a user, the sensor comprising:

  • a substrate and an array of filaments, each filament in the array comprising;

    a substrate core comprising;

    a columnar protrusion having a base end, coupled to the substrate, and a distal portion operable to provide access to the body fluid of the user during operation of the sensor;

    a first electrode portion operable to sense a first analyte within the body fluid and defined by;

    a first conductive layer, isolated to the distal portion of the substrate core and away from the base end and operable to transmit electronic signals generated upon detection of a first analyte within the body fluid,a first insulating layer surrounding the substrate core and exposing a portion of the first conductive layer at the distal portion, anda sensing layer coupled to the first conductive layer and operable to sense the first analyte;

    a second electrode portion operable to sense a second analyte within the body fluid and defined by;

    a second conductive layer,a second isolating layer separating the second conductive layer from the first electrode portion, anda second sensing material volume coupled to the second conductive layer and operable to sense the second analyte; and

    a third electrode portion operable to sense a third analyte within the body fluid and defined by;

    a third conductive layer,a third isolating layer separating the third conductive layer from the first electrode portion and the second electrode portion, anda third sensing material volume coupled to the third conductive layer and operable to sense the third analyte.

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