Insertion Guide Needle Geometry for Lower-Pain Glucose Sensor Insertion
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Solution Overview
Problem
Existing continuous blood glucose monitoring devices face challenges in manufacturing complexity, high costs, and user discomfort due to pain during the skin insertion process of the insertion guide needle.
Innovation Solution
A method for manufacturing an insertion guide needle through cut processing and bending of a needle original plate, which minimizes pain by using a point-contacting structure with the skin and continuous enlargement of the incision portion, reducing manufacturing complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complex manufacturing processes are used for the insertion guide needle, then the precision and functionality of the needle can be improved, but the manufacturing cost and process complexity increase
Solution Approach 1:
The needle original plate is divided into distinct functional regions: a point-contacting front end portion for initial skin penetration, and an enlargement incision part for continuous incision enlargement. This segmentation allows each region to be optimized independently while simplifying the overall manufacturing process through a single plate structure.
Solution Approach 2:
The needle original plate is pre-formed with the enlargement incision part that will continuously enlarge the incision during insertion. This preliminary structuring eliminates the need for complex multi-step manufacturing processes, as the functional geometry is built into the original plate before insertion occurs.
2Ease of manufacture
If a traditional needle structure is used for skin insertion, then the manufacturing process is simple, but pain and user repulsion increase due to continuous skin contact
Solution Approach 1:
Different regions of the needle original plate are given different geometric properties: the front end portion has a point-contacting structure for minimal initial penetration, while the enlargement incision part has geometry designed to continuously enlarge the incision. This local differentiation reduces pain by optimizing each region's interaction with skin tissue.
Solution Approach 2:
Instead of using a traditional sharp needle that continuously penetrates skin, the invention inverts the approach by using a point-contacting front end for initial penetration followed by an enlargement structure that gradually expands the incision. This reverses the conventional needle mechanism to reduce pain and user repulsion.
3Reliability
If multiple processing steps are used for manufacturing the needle, then the functional features can be achieved, but the manufacturing cost increases
Solution Approach 1:
The invention merges multiple functional features into a single needle original plate structure. The point-contacting front end portion and the enlargement incision part are integrated into one continuous structure, allowing manufacturing through a single plate forming process rather than multiple separate components requiring assembly.
Solution Approach 2:
The needle original plate serves multiple functions simultaneously: it provides the sharp point-contacting front end for initial skin penetration, the enlargement incision part for continuous incision enlargement, and structural support for the insertion guide needle. This multi-functionality reduces manufacturing cost by eliminating the need for separate components.
Data Source
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AI summary
The present disclosure relates to a method for manufacturing an insertion guide needle for a continuous blood glucose monitoring device. The present disclosure provides a method for manufacturing an insertion guide needle for a continuous blood glucose monitoring device, by which: an insertion guide needle can be manufactured through a cutting process and a bending process of a needle raw plate, so that a complicated manufacturing process is unnecessary, and can thus be easily manufactured through a simple process; an enlargement incision part for continuous enlargement and incision, etc. can be conveniently manufactured through such a simple processing process, so that a manufacturing cost thereof can be reduced and also the size accuracy of the insertion guide needle can be improved; and, particularly, in a process of inserting the insertion guide needle into skin, the insertion guide needle can be brought into point contact with the skin to cut the skin, and then can continuously cut the skin in an enlarged manner, so as to minimize pains which may occur in the process of inserting the insertion guide needle into the skin, thereby alleviating the sense of repulsion or tension at the time of using the continuous blood glucose monitoring device.