Continuous Glucose Monitor Notifications Filtered During Signal Loss

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Solution Overview

Problem

Existing continuous glucose monitoring systems (CGMS) fail to provide timely notifications during signal loss, posing health risks to diabetic patients due to missed alerts for critical glucose level changes or system events.

Innovation Solution

A method for determining and controlling the output of notifications during signal loss, prioritizing events such as high or low glucose levels, sensor replacement, calibration, battery status, or health care manager connection, ensuring timely glucose information delivery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal stops notification output during signal loss, then false alarms are prevented, but critical health alerts may be missed

Engineering Contradiction:
Improvenotification accuracyVSAvoidmissed health alerts
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system changes the notification output parameter dynamically based on signal loss detection. When signal loss is detected, the terminal modifies the notification behavior by comparing event priorities against a threshold, allowing only high-priority notifications (health alerts, glucose level warnings) to pass through while blocking low-priority ones (routine updates, non-critical events). This parameter change resolves the contradiction by making notification accuracy dependent on signal status and event importance.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The notification system combines multiple filtering criteria (signal loss status, event priority level, notification type) to create a composite decision-making mechanism. Rather than using a single criterion, the terminal evaluates multiple factors simultaneously to determine whether to output a notification during signal loss, achieving both false alarm prevention and critical alert delivery.

Inventive Principle:
Principle #40Composite materials

2Productivity

If the terminal continues notification output during signal loss, then all events are notified, but false alarms increase due to inability to verify data

Engineering Contradiction:
Improvenotification deliveryVSAvoidnotification accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The terminal changes the notification delivery parameter by introducing a priority threshold that becomes active during signal loss. Notifications are filtered based on their priority level, with only those exceeding the threshold being delivered. This parameter change maintains productivity for critical events while improving reliability by blocking uncertain or non-critical notifications during signal loss periods.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The notification system segments events into different priority categories (high-priority health alerts versus low-priority routine events). During signal loss, the terminal applies different delivery rules to each segment, delivering high-priority notifications while blocking low-priority ones. This segmentation resolves the contradiction by treating different notification types differently based on their criticality.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If no notification filtering is applied during signal loss, then all events are processed, but system resource waste increases

Engineering Contradiction:
Improveevent processingVSAvoidprocessing overhead
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The system changes the event processing parameter by activating a priority-based filtering mechanism during signal loss. Instead of processing all events uniformly, the terminal evaluates each event's priority level and selectively processes only those that meet the threshold. This parameter change reduces energy consumption by avoiding unnecessary processing of low-priority events while maintaining adaptability for critical events.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

During signal loss, the terminal applies partial action by processing only a subset of events (those with high priority) rather than all events. This selective processing reduces computational overhead and energy consumption while still maintaining system versatility for handling critical situations. The partial action is sufficient to ensure health safety without the excessive resource cost of processing all possible events.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP4623820A1Method of providing notification of event
Publication Date: 2025.10.01 I SENS INC
  • EP4623820A1 patent drawingFigure 1
  • EP4623820A1 patent drawingFigure 2
  • EP4623820A1 patent drawingFigure 3

AI summary

An embodiment may provide a method of providing an event notification in a glucose monitoring system, the method including determining whether an event occurs; in response to the occurrence of the event, determining whether an event occurrence time falls within a signal loss section; and outputting a notification corresponding to the event depending on whether the event occurrence time falls within the signal loss section.