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Optical sensor

  • US 4,849,172 A
  • Filed: 01/29/1988
  • Issued: 07/18/1989
  • Est. Priority Date: 04/18/1986
  • Status: Expired due to Term
First Claim
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1. An optical sensor for a blood constituent of interest consisting essentially of:

  • a gas permeable, crosslinked silicone polymeric matrix having therein at least one optical indicator consisting essentially of a mixture of derivatives of a polynuclear aromatic compound, each of said derivatives providing a portion of an optical signal in response to excitation light when in the presence of a blood constituent of interest.

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