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Vivo refillable glucose sensor

  • US 4,986,271 A
  • Filed: 07/19/1989
  • Issued: 01/22/1991
  • Est. Priority Date: 07/19/1989
  • Status: Expired due to Term
First Claim
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1. The method of prolonging the useful life of an electrochemical sensor implanted in a living body and of the type employing an enzyme material for reaction with components of bodily fluids and which enzyme material becomes spent or degraded after reaction comprising the steps of:

  • fixing the enzyme material on bulk particulate matter for reaction in the implanted sensor with a component of bodily fluids, andrecharging the implanted sensor with fresh enzyme material fixed on said bulk particulate matter and removing the bulk particulate matter carrying the degraded enzyme material from the sensor.

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