Double-Chamber Container Weak Seal Manufacturing
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Solution Overview
Problem
Current methods for manufacturing double-chamber containers are costly, and existing configurations often result in incomplete administration of dried medical agents due to complex sealing mechanisms.
Innovation Solution
A method involving sheet-like members with specific layer configurations and welding techniques to form separate medical agent and solution storage chambers, utilizing a weak seal portion for communication, which is formed by joining specific sides of the members and peeled off to allow mixing without the need for additional costly sealing sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complex sealing mechanisms are used to separate chambers, then manufacturing precision is improved, but device complexity increases and manufacturing cost rises
Solution Approach 1:
The patent employs a disposable weak seal portion instead of complex reusable sealing mechanisms. The weak seal is designed to be easily breached during use, providing adequate separation during storage but allowing easy communication during administration, thereby reducing device complexity while maintaining manufacturing precision.
Solution Approach 2:
The patent changes the strength parameter of the seal from strong (complex mechanisms) to weak (simple tearable seal). This parameter change allows the seal to serve dual purposes: maintaining separation during storage and allowing easy communication during use, resolving the contradiction between precision and complexity.
2Reliability
If additional sealing sheets are added to ensure complete mixing, then reliability is improved, but manufacturing cost increases
Solution Approach 1:
The patent extracts the sealing function from a separate additional sheet and integrates it into the existing weak seal portion structure. This eliminates the need for additional sealing sheets while ensuring complete mixing, thereby improving reliability without increasing manufacturing cost.
Solution Approach 2:
The patent merges the sealing function with the weak seal portion structure, combining multiple functions (separation, sealing, and controlled communication) into a single integrated component, reducing the number of parts and manufacturing cost while maintaining reliable mixing.
3Reliability
If strong sealing is used to prevent leakage, then reliability is improved, but ease of operation deteriorates due to incomplete mixing
Solution Approach 1:
The patent transforms the seal from a static strong seal to a dynamic weak seal that changes state during use. The weak seal maintains separation during storage (reliability) but is easily breached during administration to enable complete mixing (ease of operation), resolving the contradiction between leakage prevention and mixing efficiency.
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
This approach allows for the cost-effective production of double-chamber containers where the medical agent and solution chambers can appropriately communicate, ensuring complete administration of the mixed drug without leakage or incomplete mixing issues.
Implementation Method 1
forming the medical agent storage chamber and the medical solution storage chamber by joining the first sheet-like member and the second sheet-like member
Implementation Method 2
the first sheet-like member and the second sheet-like member are peeled off from each other in the weak seal portion, and thereby, the medical agent storage chamber and the medical solution storage chamber communicate with each other
Data Source
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AI summary
There is provided a method for manufacturing a double-chamber container (100) including a medical agent storage chamber (61) and a medical solution storage chamber (62) separated from each other by a weak seal portion (30), the method including the steps of: preparing a first sheet-like member (10) including a first medical agent storage chamber forming portion (11) and a first medical solution storage chamber forming portion (12) whose one sides (11A, 12A) are joined to each other, as well as a second sheet-like member (20) including a second medical agent storage chamber forming portion (21) and a second medical solution storage chamber forming portion (22) whose one sides (21A, 22A) are joined to each other; and forming the medical agent storage chamber (61) and the medical solution storage chamber (62) by joining the first sheet-like member (10) and the second sheet-like member (20). The weak seal portion (30) is formed by joining the one side (12A) of the first medical solution storage chamber forming portion (12) and the one side (22A) of the second medical solution storage chamber forming portion (22).