{
  "patent_number": "US 9282925",
  "country": "US",
  "title": "How Glucose Sensors Check Their Own Reliability for Insulin Pumps",
  "original_title": "Systems and methods for replacing signal artifacts in a glucose sensor data stream",
  "summary": "This patent describes a system that automatically checks how trustworthy a continuous glucose sensor's readings are and then adjusts how an insulin pump delivers medicine based on that trust level.",
  "what_it_does": "The patent details a system (Claim 14) and method (Claim 1) for a continuous glucose sensor (CGS) to assess its own data quality. An \"electronics unit\" receives glucose data from the CGS. A \"signal reliability module\" on a processor then determines a \"level of reliability\" for that data. This reliability level is chosen from at least three pre-set options, stored in memory (Claim 1). For example, if the sensor detects \"transient non-glucose related signal artifacts\" (Claim 8) or a \"drift in sensitivity\" (Claim 3), it might lower its reliability score. Crucially, this reliability score is then used to \"control the administration of a medicament\" (Claim 1), such as adjusting insulin delivery from an insulin pump. The system can also prompt a user for a reference glucose value if reliability is low (Claim 13).",
  "what_it_does_not_cover": [
    "Does not cover systems that only detect noise without using a \"level of reliability\" selected from \"three or more predetermined reliability levels\" (Claim 1).",
    "Does not cover systems where the reliability assessment does not directly \"control the administration of a medicament\" (Claim 1).",
    "Does not cover systems that only filter noise from glucose data without using the reliability level to influence medicament delivery.",
    "Does not cover systems where the reliability is determined by only one or two levels, as \"three or more predetermined reliability levels\" are specified (Claim 1).",
    "Does not cover systems that only display reliability to a user without also controlling medicament administration."
  ],
  "filed": "2010-03-25",
  "granted": "2016-03-15",
  "expires": "2030-03-25",
  "status": "active",
  "holder": "Dexcom",
  "holder_url": "https://patentbrief.org/company/dexcom",
  "inventors": [
    {
      "name": "Aarthi Mahlingam",
      "url": "https://patentbrief.org/inventor/aarthi-mahlingam"
    },
    {
      "name": "Apurv Ullas Kamath",
      "url": "https://patentbrief.org/inventor/apurv-ullas-kamath"
    },
    {
      "name": "James H. Brauker",
      "url": "https://patentbrief.org/inventor/james-h-brauker"
    }
  ],
  "times_cited": 10,
  "tags": [
    "consumer_electronics",
    "software",
    "biotech",
    "medical_devices",
    "telecommunications"
  ],
  "abstract": "Systems and methods for detecting noise episodes and processing analyte sensor data responsive thereto. In some embodiments, processing analyte sensor data includes filtering the sensor data to reduce or eliminate the effects of the noise episode on the signal.",
  "url": "https://patentbrief.org/patent/us/9282925/systems-and-methods-for-replacing-signal-artifacts-in-a-glucose-sensor-data-stre",
  "markdown_url": "https://patentbrief.org/patent/us/9282925/systems-and-methods-for-replacing-signal-artifacts-in-a-glucose-sensor-data-stre/md",
  "google_patents_url": "https://patents.google.com/patent/US9282925",
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}