Analyte Sensor Inserter With Auto-Retracting Auxiliary Needle
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Solution Overview
Problem
Existing analyte detection devices have complex structures, high production costs, and are inconvenient for users, necessitating a simpler and more user-friendly installation process.
Innovation Solution
The installation unit features a housing with an auxiliary-needle limit slot, a parallel slider module, and a slider-buckle mechanism that allows the auxiliary-needle to retract safely into the housing after insertion, utilizing elastic components and a simple, plane or approximate plane connection to facilitate easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the installation unit uses a complex structure to ensure reliability, then the reliability is improved, but the device complexity increases and ease of operation deteriorates
Solution Approach 1:
The installation unit is divided into distinct functional modules: a housing containing an auxiliary-needle module with retractable needle, a parallel slider module for controlled movement, and a triggering module. This segmentation allows each component to perform its function independently, simplifying the overall structure while maintaining reliability through modular design
Solution Approach 2:
The auxiliary-needle module automatically retracts the needle back into the housing after the installation action is completed. The elastic module provides automatic resetting functionality, and the slider-buckle mechanism self-locks and self-releases based on the triggering sequence, reducing the need for complex external control systems
2Reliability
If the installation unit uses a complex structure to ensure safety, then the safety is improved, but the ease of operation deteriorates
Solution Approach 1:
The system performs safety functions automatically: the auxiliary-needle retracts itself after use, the elastic module automatically resets the mechanism, and the slider-buckle self-locks and self-releases. This eliminates the need for users to manually perform complex safety operations, greatly improving ease of operation while maintaining high safety standards
Solution Approach 2:
The auxiliary-needle is designed to automatically retract back into the housing after the installation action, preventing unnecessary injury. The slider-buckle mechanism includes preliminary locking features that ensure safe operation sequence, and the elastic module pre-positioned ready to reset the system, all contributing to safety without complicating user interaction
3Ease of operation
If the installation unit uses simple structure, then the ease of operation is improved, but the device complexity increases due to additional components
Solution Approach 1:
Multiple functions are merged into integrated components: the auxiliary-needle module combines needle, slide block, and retraction mechanism; the parallel slider module integrates slider, buckle, and limit slot; the elastic module provides both actuation and resetting functions. This merging reduces the number of separate components while maintaining simplicity of operation
Solution Approach 2:
The elastic module serves multiple purposes: providing actuation force for the parallel slider module, enabling automatic resetting of the mechanism, and ensuring safe retraction of the auxiliary-needle. The slider-buckle mechanism simultaneously provides movement control, locking, and release functions, reducing component quantity while maintaining ease of operation
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, reliable, and user-friendly installation process that minimizes the risk of injury by ensuring the auxiliary-needle retracts safely, reducing complexity and cost while enhancing user convenience.
Implementation Method 1
an elastic module for providing the elastic force required to implement the installation action
Data Source
Figure 1~2a
Figure 2b
Figure 3
AI summary
An installation unit (100) of analyte detection device, comprises: a housing (101), provided with an auxiliary-needle limit slot (1015); a paralled slider module (103), the far end face of which is provided with the slider-buckle (10321); an analyte detection device (104), located at the front end of the parallel slider module (103); and an auxiliary-needle module (105). When implementing the installation action, the auxiliary-needle module (105) moves to the near end along with the parallel slider module (103) relative to the housing (101). The auxiliary-needle (1052) inserts the sensor under the skin until the slider-buckle (10321) is separated from the auxiliary-needle limit slot (1015), the auxiliary-needle slide block (10511) returns back to the initial position, and the auxiliary-needle (1052) retracts back into the housing (101) to avoid unnecessary injury. The installation unit (100) has simple structure, high reliability and convenient use.