Lancing Device Tail Handle Spiral Depth Adjustment
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Solution Overview
Problem
Existing lancing devices lack a mechanism for secondary loading of lancets, leading to waste when the initial puncture depth is insufficient, and their complex structures increase manufacturing costs and user complexity.
Innovation Solution
A lancing device design that integrates a tail handle for both loading and depth adjustment, using a spiral action surface to adjust puncture depth and enable secondary loading, simplifying the structure and operation by combining functions previously handled by separate components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate mechanisms are used for puncture depth adjustment and secondary loading, then each function can be independently optimized, but the device structure becomes complex with more components and higher manufacturing costs
Solution Approach 1:
The patent combines the puncture depth adjustment mechanism and secondary loading mechanism into a single integrated structure. The tail handle serves dual purposes: rotating it adjusts the puncture depth while pulling it back performs secondary loading of the lancet. This merging of functions reduces the number of separate components and simplifies the overall device structure while maintaining functional independence through distinct operational modes.
Solution Approach 2:
The tail handle is designed as a universal component that performs multiple functions: it acts as both the puncture depth adjustment mechanism (through rotation) and the secondary loading mechanism (through backward pulling). This multi-functionality eliminates the need for separate dedicated components for each function, thereby reducing device complexity and manufacturing costs while ensuring reliable operation of both functions.
2Device complexity
If a single tail handle is used for both loading and depth adjustment, then the structure is simplified and manufacturing costs are reduced, but the operational functions are combined which may reduce independent control
Solution Approach 1:
The tail handle employs dynamic operational modes where the same component performs different functions based on the user's action: rotating the handle adjusts puncture depth, while pulling it backward performs secondary loading. This dynamic functionality allows a single simplified structure to adapt to multiple operational requirements, maintaining functional versatility despite structural simplicity.
Solution Approach 2:
The invention utilizes parameter changes in the tail handle's position and orientation to achieve different functions. Rotational movement changes the angular parameter for depth adjustment, while axial displacement changes the linear parameter for loading. This parameter-based differentiation allows the single tail handle to provide versatile functionality without requiring complex separate mechanisms.
3Reliability
If multiple separate components are used for different functions, then each component can be optimized for its specific function, but the number of components increases leading to higher manufacturing costs and assembly complexity
Solution Approach 1:
The patent merges the previously separate puncture depth adjustment component and secondary loading component into a single tail handle structure. This consolidation reduces the total number of components that need to be manufactured and assembled, thereby lowering manufacturing costs and assembly complexity while maintaining the functional optimization of each operation through dedicated movement modes.
Solution Approach 2:
By designing the tail handle as a universal component that performs both puncture depth adjustment and secondary loading functions, the invention eliminates the need for multiple specialized components. This reduces manufacturing costs and assembly complexity while ensuring each function remains optimized through its specific operational mechanism within the unified structure.
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 integrated tail handle allows for versatile one-key operation, reducing the number of components, simplifying the design, and lowering manufacturing costs while enhancing user convenience and operational performance.
Implementation Method 1
a spiral action surface is provided on the tail handle, and rotating the tail handle can change the position of impact point on the passive impact surface in the axial direction of the lancing device
Data Source
AI summary
A lancing device utilizing tail handle to load and adjust depth, includes a shell, an ejection pin, and a tail handle. The tail handle rotates fit with shell in circumferential direction of lancing device and slides fit with shell in axial direction of lancing device; the tail handle has forward sliding limit relative to shell in axial direction; passive impact surface is arranged corresponding to active impact surface on ejection pin for adjusting puncture depth and loading, and passive impact surface is formed by spiral action surface on tail handle; in use state, rotating tail handle will drive position of impact point on passive impact surface to change in axial direction of lancing device, thereby adjusting lancet tip puncture depth; pulling the tail handle backward will force the passive impact surface to come into contact with the active impact surface, and drive the ejection pin to be loaded and locked.