Needle Aid Device Trigger Module for CGM Sensor Placement
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Solution Overview
Problem
Existing needle aids for continuous glucose monitoring systems have complex structures that compromise the stability of needle implantation and withdrawal, leading to inaccurate sensor placement and reduced sensitivity.
Innovation Solution
A needle aid device with a trigger module that can be easily locked and unlocked, featuring elastic clamping jaws, a trigger buckle, and an adjustable guide needle mechanism, allowing for precise control over implantation depth and stability during needle insertion and withdrawal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the needle aid device uses a complex structure to control needle implantation, then the control precision is improved, but the device complexity increases
Solution Approach 1:
The needle aid device is divided into distinct functional modules: an adjustable needle depth control mechanism with scale markings, a trigger module with elastic clamping jaws, and a guide needle mechanism. This segmentation allows each component to perform its specific function independently, achieving precise needle implantation control without requiring an overly complex integrated structure.
Solution Approach 2:
The device incorporates preliminary depth adjustment and marking mechanisms before needle implantation. The guide needle has pre-marked depth indicators, and the trigger module is pre-positioned to engage at specific depths, ensuring accurate implantation without requiring complex real-time control systems during the procedure.
2Ease of operation
If the needle aid device uses a simple structure for easy operation, then the ease of operation is improved, but the stability of needle implantation deteriorates
Solution Approach 1:
The trigger module incorporates elastic clamping jaws that automatically engage with the guide needle when the trigger is pulled, eliminating the need for manual adjustment or complex locking mechanisms. The elastic mechanism provides self-regulating clamping force, ensuring stable needle retention through simple user action.
Solution Approach 2:
The trigger module uses dynamic elastic clamping jaws that can adaptively adjust to the guide needle dimensions. The elastic deformation allows the clamping jaws to firmly grip the needle during implantation while automatically releasing when the trigger is actuated, providing both stability and ease of operation through dynamic mechanical response.
3Adaptability or versatility
If the needle aid device allows adjustable implantation depth, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The guide needle features asymmetric depth markings and an asymmetric trigger module positioning system. The scale markings are positioned at specific asymmetric intervals corresponding to different implantation depths, allowing users to select appropriate depths for different skin thicknesses without requiring complex adjustable mechanisms.
Solution Approach 2:
The trigger module serves as an intermediary mechanism between the user's simple pulling action and the complex task of achieving precise adjustable depth implantation. By positioning the trigger module at specific distances from the needle tip and using elastic clamping jaws, the device translates a simple trigger pull into controlled needle deployment at predetermined depths.
4Ease of operation
If the needle aid device uses elastic clamping jaws for automatic locking, then the ease of operation is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The elastic clamping jaws are designed with specific elastic modulus and dimensional parameters that allow them to deform and engage the guide needle within a controlled range. The elastic material properties and jaw geometry are optimized so that dimensional variations within standard manufacturing tolerances do not significantly affect the clamping function, reducing manufacturing precision requirements while maintaining automatic locking capability.
Data Source
AI summary
A needle aid device comprises an outer shell; an inner shell located in the outer shell and comprising an upper portion and a lower portion, a trigger shell passage penetrating through the upper portion and the lower portion being formed in the inner shell, and an inner diameter of the lower portion being greater than that of the upper portion; and a trigger module capable of moving in the trigger shell passage and used for clamping or releasing an emitter mechanism; wherein, in an initial state, the trigger module is locked on the upper portion; and when unlocked, the trigger module drives the emitter mechanism to move downward until the emitter mechanism is separated from the trigger module.