Multi-needle module adhesive injection and assembly
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Solution Overview
Problem
The existing multi-needle modules for skin treatment have complex manufacturing processes and low production efficiency due to the need for additional components like vacuum pumps and manual assembly, which complicates the bonding process and results in defective products.
Innovation Solution
A simplified multi-needle module design that allows adhesive injection through a front injection hole, eliminating the need for a jig and enabling simultaneous bonding of the cap part, housing, and connector, with a syringe coupling part to prevent spinning and enhance assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional parts such as vacuum pumps and suction pipes are used for suctioning the skin, then the skin treatment function is improved, but the manufacturing cost increases and the procedure becomes cumbersome
Solution Approach 1:
The patent extracts and eliminates the unnecessary vacuum pump and suction pipe components from the skin treatment system. The redesigned needle module achieves effective skin treatment through the needle array configuration alone, removing complex auxiliary suction equipment while maintaining treatment efficacy.
Solution Approach 2:
The needle module is designed to perform skin treatment functions independently without requiring external vacuum pumps or suction devices. The self-contained needle array structure enables direct treatment application, making the system self-sufficient and eliminating dependency on additional complex components.
2Reliability
If manual assembly with multiple bonding steps is used to assemble the needle module, then the components can be bonded together, but the manufacturing process becomes complicated and production efficiency decreases
Solution Approach 1:
The patent merges multiple bonding operations into a single integrated bonding step. The needle hub, needle guider, and syringe guider are designed with unified bonding features that allow all components to be bonded simultaneously in one process, eliminating the need for separate primary and secondary bonding steps.
Solution Approach 2:
The components are pre-configured with integrated bonding structures and alignment features before assembly. The needle guider and syringe guider include pre-formed bonding surfaces and positioning elements that enable direct bonding without requiring complex jigging or multiple adjustment steps during assembly.
3Reliability
If the needle hub, needles, and needle guider are assembled first with primary bonding, then the syringe guider is added with secondary bonding, then the manufacturing process is complex and requires removal from jig
Solution Approach 1:
The patent combines the assembly of needle hub, needles, needle guider, and syringe guider into a single integrated assembly operation. All components are positioned and bonded simultaneously in one step, eliminating the sequential primary and secondary bonding processes and the need for complex jig removal procedures.
Solution Approach 2:
The needle guider is nested within the syringe guider structure, and the needles are nested within the needle guider. This nested configuration allows all components to be assembled and bonded together in a single operation, with each component fitting into the previous one, simplifying the overall assembly process.
4Reliability
If medical adhesive is injected through the rear side to fill needle through holes, then bonding is performed, but the complex structure prevents deep injection resulting in defective products
Solution Approach 1:
Instead of injecting adhesive through the rear side of the complex structure, the patent inverts the approach by providing an adhesive injection hole in the front plate of the syringe guider. This allows adhesive to be injected from the front, directly reaching the needle through holes and bonding interfaces, ensuring complete filling and reliable bonding.
Solution Approach 2:
The patent extracts the adhesive injection access from the difficult-to-reach rear side and relocates it to the easily accessible front plate. This extraction of the injection function to a different location eliminates the problem of incomplete adhesive filling caused by the complex rear structure.
Data Source
AI summary
The present invention relates to a multi-needle module for skin treatment, including a needle; a cap part including a front plate including, formed therein, a needle hole through which the needle is passed and an injection hole through which adhesive is injected, and a receiving portion including an opening portion formed at a rear side and an empty space formed therein; a housing including an opening portion coupled to the rear opening portion of the cap part, a space formed therein, and a syringe coupling part connected to a syringe; and a connector inserted into the housing, and includes a concave adhesive injection part formed on a side to be filled with adhesive, and mounted with a plurality of needles on an upper portion thereof, in which the connector is spaced apart from the front plate of the cap part so as to form the adhesive injection part.