Functional Drug Injection Module with Separable Sealing Unit
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Solution Overview
Problem
Existing liquid injection devices for human body applications face challenges in easy and secure removal of sealing units, leading to inconvenience and potential contamination risks due to multi-step processes for opening and closing the outlet.
Innovation Solution
A functional drug injection module design featuring a separable sealing unit with creases and a cover unit that allows for simple opening of the outlet by external force, enabling easy use without specific structures for unsealing, using a sealing section, cutting section, and separating section to maintain hygiene and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sealing components (cover unit, cap, package) are used to prevent leakage and contamination, then sealing reliability is improved, but device complexity and ease of operation deteriorate due to multi-step removal processes
Solution Approach 1:
The sealing unit integrates the cover unit and package into a single unified structure. The cover unit is formed as an integral part of the package, eliminating the need for separate sealing components. This merging maintains comprehensive sealing protection while allowing the entire sealing unit to be removed in one simple action, resolving the contradiction between reliable sealing and easy operation.
Solution Approach 2:
The sealing unit is designed with a separable structure featuring a first crease that allows clean separation from the injection unit. This segmentation enables the sealing unit to function as a complete protective assembly during storage, then be easily divided and removed in one motion during use, maintaining both sealing integrity and operational simplicity.
2Reliability
If multiple sealing components are used to prevent leakage, then leakage prevention is improved, but the number of steps to remove seals increases causing inconvenience
Solution Approach 1:
The package is designed to integrally form the cover unit as part of its structure. This merging reduces the total number of separate sealing components while maintaining the functional equivalent of multiple seals, thereby preventing leakage without requiring multiple discrete parts that would increase device complexity.
Solution Approach 2:
The sealing unit serves multiple functions simultaneously: it acts as both the package wrapper and the outlet cover, providing comprehensive sealing protection. This multi-functionality eliminates the need for separate dedicated sealing components, reducing device complexity while maintaining reliable leakage prevention.
3Reliability
If a separate cover unit is used to close the outlet, then outlet sealing is improved, but ease of operation worsens due to additional separation steps
Solution Approach 1:
The cover unit is integrally formed with the package as a single sealing unit. This merging allows the outlet sealing function to be maintained while eliminating the need for separate cover removal steps. The entire sealing unit can be removed in one action, resolving the contradiction between reliable outlet sealing and ease of opening.
Solution Approach 2:
The sealing unit incorporates a first crease that enables clean separation from the injection unit. This segmentation allows the integrated cover-unit-package structure to be easily divided and removed in one motion, maintaining outlet sealing reliability while improving ease of operation by eliminating multiple separation steps.
Data Source
AI summary
Disclosed is a functional drug injection module including: an injection unit including a body that is elongated, keeps a functional drug therein, has an outlet formed at a front end thereof, and is open at a rear end thereof, and a piston that is inserted in the body through the rear end of the body and discharges the functional drug by longitudinally sliding; a cover unit at least partially formed like a projection, inserted in the outlet, and adjust opening/closing of the outlet by selectively separating; and a sealing unit surrounding the injection unit and the cover unit, having a first crease formed in a longitudinal direction of the injection unit, and separating from the injection unit together with the cover unit by being divided along the first crease by external force.