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Implantable chemical sensor with rugged optical coupler

  • US 20040161853A1
  • Filed: 02/13/2003
  • Published: 08/19/2004
  • Est. Priority Date: 02/13/2003
  • Status: Abandoned Application
First Claim
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1. A chemical sensor for detecting or measuring a parameter of interest in a sample fluid, comprising:

  • a) a housing chemically resistant to the sample fluid;

    b) a sensor element substantially within the housing, the sensor element having an optically transparent body with a first surface exposed from the housing for receiving a sample responsive to the parameter of interest in the sample fluid and for receiving a first signal from the sensing layer in response to optical stimulation thereof;

    c) wherein the sensor element comprises a light emitter on a second surface of the body, optically coupled to the first surface for providing said optical stimulation;

    d) wherein the sensor element comprises a first detector on a third surface of the body, optically coupled to the first surface for detecting said first signal; and

    e) wherein of the first, second and third surfaces of the body, two surfaces are opposed and a remaining surface couples the opposed surfaces.

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