Implantable gas-containing biosensor and method for measuring an analyte such as glucose

  • US 4,721,677 A
  • Filed: 05/07/1987
  • Issued: 01/26/1988
  • Est. Priority Date: 09/18/1985
  • Status: Expired due to Term
First Claim
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1. A device for sensing a product or reactant of an enzyme reaction with an analyte as a measure of the analyte comprisinga gas and enzyme permeable membrane having opposed sides,an enzyme on one side of said membrane for permeation through said membrane and enzymatic reaction with the analyte in presence of oxygen to provide the product or reactant,a closed container for containing oxygen on the enzyme side of said membrane to supply oxygen through said membrane for the enzymatic reaction, andmeans for sensing the product or reactant as a function of the analyte.

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