Skin-Mounted Analyte Sensor Inserter With Buckle-Release Slider

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Solution Overview

Problem

Existing analyte detection devices have complex structures, high production costs, and are inconvenient for users, particularly in the installation process.

Innovation Solution

An installation unit for analyte detection devices featuring a housing with first buckles that couple with second buckles on a parallel slider module, utilizing an elastic module for installation, where the triggering module releases the coupling between the buckles to facilitate sensor insertion into the skin.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the installation unit uses a complex structure with multiple components, then the reliability of sensor insertion is improved, but the device complexity and ease of operation deteriorate

Engineering Contradiction:
Improvesensor insertion reliabilityVSAvoidinstallation unit structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The installation unit is divided into distinct functional modules: a housing containing the analyte detection device, a parallel slider module with auxiliary needle, and a triggering module. These modules are connected through buckle mechanisms that allow controlled relative movement. This segmentation enables each module to perform its specific function independently while maintaining overall system reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines multiple functions into integrated components. The housing both protects the analyte detection device and provides the structural framework for the buckle connection system. The parallel slider module integrates the auxiliary needle mechanism with the release mechanism, eliminating the need for separate components and simplifying the overall structure while maintaining reliability.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If the installation unit uses a complex structure with multiple components, then the reliability of sensor insertion is improved, but the ease of operation deteriorates

Engineering Contradiction:
Improvesensor insertion reliabilityVSAvoidinstallation convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The first and second buckles are pre-configured in a coupled state before use, with the elastic module already under tension. When the triggering module is actuated, the pre-loaded elastic energy automatically drives the release mechanism and guides the parallel slider module through the insertion motion. This preliminary configuration eliminates the need for users to manually coordinate multiple steps, making operation simple while ensuring reliable sensor insertion.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The elastic module provides self-powered motion for the parallel slider module during installation. After the buckles are released by the triggering module, the elastic force automatically propels the auxiliary needle and sensor into the skin without requiring additional manual force from the user. The system serves itself by converting stored elastic energy into the mechanical work needed for reliable insertion.

Inventive Principle:
Principle #25Self-service

3Reliability

If the installation unit uses traditional complex mechanisms, then the reliability of connection is improved, but the manufacturing cost increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The installation unit is designed as a disposable device where the housing, parallel slider module, and auxiliary needle are intended for single use. This approach allows the use of simpler, less durable materials and manufacturing methods compared to reusable devices. The buckle connection mechanism uses basic plastic clips and elastic bands that are inexpensive to manufacture, reducing production costs while maintaining sufficient connection reliability for the intended single-use application.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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

The solution provides a simple, user-friendly, and cost-effective installation process for analyte detection devices, ensuring reliable and efficient sensor insertion with minimal user effort.

Implementation Method 1

an elastic module for providing the elastic force required to perform the installation action

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentEP4408276B1Installation unit of analyte detection device and use method
Publication Date: 2026.02.25 MEDTRUM TECH
  • EP4408276B1 patent drawingFigure 1~2a
  • EP4408276B1 patent drawingFigure 2b
  • EP4408276B1 patent drawingFigure 3

AI summary

An installation unit (100) of the analyte detection device and use method. The installation unit (100) comprises: a housing (101), comprising at least two first buckles (1012); a parallel slider module (103), which is provided with the second buckles (1033) corresponding to the first buckles (1012), and the first buckles (1012) are separately coupled with the second buckles (1033); an analyte detection device (104); an auxiliary-needle module (105); an triggering module (106), when the triggering module (106) moves to the far end relative to the housing (101), it cancels the coupling of the first buckles (1012) and the second buckles (1033) to implement the installation action; and an elastic module (107). When using the installation unit (100), the user only needs to attach the near end of the installation unit (100) to the skin surface and press the housing (101) at the far end to complete the installation of the analyte detection device, which is simple in structure and convenient in use.