Preloaded CGM Sensor Applicator for Simpler Skin Attachment

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Solution Overview

Problem

Existing continuous glucose monitoring systems require complex user operations for attaching sensor modules, are inefficient with disposable transmitters, and lack convenience and safety in use.

Innovation Solution

A sensor applicator assembly with a preinstalled sensor module in an applicator, featuring a built-in battery and separate transmitter, allowing easy attachment to the skin and automatic needle removal, with disposable components for safety and convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a separate applicator and sensor module are used, then the system is flexible and reusable, but the user operation becomes complex and time-consuming

Engineering Contradiction:
Improveattachment process simplicityVSAvoidsystem structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines the applicator and sensor module into a single integrated assembly where the sensor module is preinstalled within the applicator. This integration eliminates the need for separate handling of multiple components, simplifying the attachment process while maintaining the functional benefits of both components

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sensor module is preinstalled in the applicator during manufacturing, so that when the user operates the applicator, the sensor module is already positioned and ready for immediate attachment to the skin. This preliminary preparation eliminates complex user assembly steps

Inventive Principle:
Principle #10Preliminary action

2Reliability

If a disposable transmitter is used with each sensor module, then each component can be optimized for single-use safety, but the cost increases and waste is generated

Engineering Contradiction:
Improveusage safetyVSAvoidtransmitter waste
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The system is segmented into disposable components (sensor module and applicator) and a reusable component (transmitter). The transmitter is separated from the single-use sensor module, allowing the transmitter to be used multiple times while the sensor module and applicator are discarded after one use, reducing waste and cost

Inventive Principle:
Principle #1Segmentation

3Productivity

If the user manually attaches the sensor module separately, then the applicator can be reused, but additional user tasks increase the complexity and time required

Engineering Contradiction:
Improveattachment speedVSAvoiduser task complexity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The applicator and sensor module are merged into a single operational unit. When the user operates the applicator to attach the sensor to the skin, both components work together as one integrated system, eliminating the need for separate manual attachment steps and reducing user task complexity

Inventive Principle:
Principle #5Merging (Combining)

4Measurement precision

If the sensor module and applicator are disposable, then accuracy and safety are ensured, but the initial cost per use increases

Engineering Contradiction:
Improveglucose monitoring accuracyVSAvoiddisposable component waste
Core Design Contradiction:
Measurement precisionVSLoss of substance

Solution Approach 1:

The system is divided into disposable parts (sensor module and applicator) that ensure accuracy and safety through single-use design, and a reusable transmitter that reduces overall waste. This segmentation allows the critical measurement components to be disposable while the expensive electronics are reused

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4397243B1Sensor applicator assembly for continuous glucose monitoring system
Publication Date: 2026.02.11 I SENS INC
  • EP4397243B1 patent drawingFigure 1
  • EP4397243B1 patent drawingFigure 2(a)~3(b)
  • EP4397243B1 patent drawingFigure 4

AI summary

The present invention relates to a sensor applicator assembly for a continuous glucose monitoring system and provides a sensor applicator assembly for a continuous glucose monitoring system, which is manufactured with a sensor module assembled inside an applicator, thereby minimizing additional work by a user for attaching the sensor module to the body and allowing the sensor module to be attached to the body simply by operating the applicator, and thus can be used more conveniently. A battery is built in the sensor module and a separate transmitter is connected to the sensor module so as to receive power supply from the sensor module and be continuously used semi-permanently, thereby making the assembly economical. The sensor module and the applicator are used as disposables, thereby allowing accurate and safe use and convenient maintenance.