Blood Glucose Sensor Applicator Assembly for Stable Coupling

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Solution Overview

Problem

Existing blood glucose monitoring systems face challenges in stable coupling and decoupling operations between the applicator and the body-attachable unit, leading to complications during attachment and unstable attachment to the body, along with complex manufacturing processes.

Innovation Solution

A sensor applicator assembly featuring an upper and lower frame with identical peripheral surfaces and a plunger mechanism, including a locking hook and elastic members, allows for stable coupling and decoupling without separate engaging parts, enhancing design flexibility and simplifying the body-attachable unit's housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If various elements are used for coupling and decoupling between applicator and body-attachable unit, then coupling operations can be performed, but the configuration becomes complicated and manufacturing becomes difficult

Engineering Contradiction:
Improvecoupling stabilityVSAvoidconfiguration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the coupling and decoupling functions into a single integrated element structure. The body-attachable unit's housing directly engages with the applicator through complementary geometric features (protrusions and recesses), eliminating the need for separate coupling mechanisms. This integration simplifies the overall configuration while maintaining reliable coupling and decoupling operations.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The housing of the body-attachable unit serves multiple functions: it protects internal components, provides structural support, and enables coupling with the applicator through its peripheral surface design. This multi-functionality reduces the need for additional dedicated coupling elements, thereby simplifying the overall device configuration.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If various elements are used for coupling and decoupling between applicator and body-attachable unit, then coupling operations can be performed, but manufacturing becomes complex and design modifications are difficult

Engineering Contradiction:
Improveattachment stabilityVSAvoidmanufacturing simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The coupling features are integrated directly into the housing mold of the body-attachable unit, combining the housing and coupling elements into a single manufacturing process. This eliminates the need for separate manufacturing steps for coupling elements, simplifying production and enabling easier design modifications through straightforward mold updates.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the body-attachable unit is designed with separate engaging parts, then coupling can be achieved, but the housing form becomes complex and inner space is reduced

Engineering Contradiction:
Improvecoupling reliabilityVSAvoidinner space
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The coupling features are formed as integral parts of the housing structure, merging the housing and coupling elements into a unified design. This eliminates the need for separate engaging parts that would occupy additional space, thereby maximizing the inner space available for sensor components while maintaining reliable coupling through the housing's peripheral surface geometry.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables easy manufacturing, stable coupling, and decoupling operations, improving the applicator's operational performance and body attachment, while expanding the inner space utilization of the body-attachable unit.

Implementation Method 1

a plunger mechanism, including a locking hook and elastic members

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4628012A1Sensor applicator assembly for blood glucose meter
Publication Date: 2025.10.08 I SENS INC
  • EP4628012A1 patent drawingFigure 1
  • EP4628012A1 patent drawingFigure 2
  • EP4628012A1 patent drawingFigure 3

AI summary

Provided is a sensor applicator assembly for a blood glucose monitoring including a body-attachable unit including an upper frame and a lower frame that is disposed under the upper frame and has a surface attached to a body and an applicator within which the body-attachable unit is disposed. The upper frame includes a first area and a second area disposed under the first area and in contact with the lower frame. A perimeter of an outer peripheral surface of the second area is identical to a perimeter of an outer peripheral surface of the lower frame.