Reagent Transfer Device Soft Member Isolation
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Solution Overview
Problem
Conventional reagent transfer devices contaminate medical analysis equipment needles during reagent delivery, reducing detection accuracy and requiring frequent maintenance and cleaning.
Innovation Solution
A reagent transfer device with a reagent container featuring a first sealing film and a soft member that prevents the needling member from piercing, ensuring the needle remains isolated from the reagent, thereby preventing contamination and reducing maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the needling member directly pierces the sealing film to transfer reagent, then the reagent transfer is simple and direct, but the needling member becomes contaminated with reagent, reducing detection accuracy and requiring frequent maintenance
Solution Approach 1:
The patent introduces a transfer chamber as an intermediary space between the reagent container and the detection system. The needling member pierces the sealing film to inject reagent into this intermediate chamber, rather than directly into the detection channel. This mediator chamber allows the needling member to be isolated from the main reagent flow path, preventing contamination while still enabling efficient reagent transfer.
Solution Approach 2:
The patent divides the reagent transfer system into distinct segments: the reagent container, the transfer chamber, and the detection channel. By segmenting the system, the needling member operates only in the transfer chamber space, creating a boundary that prevents reagent from contaminating the needling member. This segmentation maintains operational simplicity while protecting detection accuracy.
2Productivity
If the needling member repeatedly pierces the sealing film, then the reagent can be transferred on demand, but the sealing film and reagent container are damaged, causing reagent volatilization and contamination
Solution Approach 1:
The patent performs the piercing action in advance by creating a dedicated transfer chamber with its own sealing mechanism. The needling member pierces the initial sealing film to establish the transfer chamber, but subsequent reagent transfers occur within this pre-established chamber without repeatedly piercing the main reagent container's sealing film. This preliminary action enables on-demand transfer while protecting the main sealing integrity.
Solution Approach 2:
The transfer chamber acts as a cushioning buffer between the needling member and the main reagent container. When the needling member pierces the sealing film, the transfer chamber absorbs the mechanical stress and contains any potential leakage or volatilization, protecting the main reagent container from damage. This beforehand cushioning allows frequent transfers while maintaining container integrity.
3Productivity
If the reagent container is directly connected to the detection channel, then the reagent flows directly for analysis, but the needling member contacts the reagent, requiring frequent cleaning and maintenance
Solution Approach 1:
The transfer chamber serves as a mediator between the reagent container and detection channel. Reagent flows from the container into the transfer chamber, then into the detection channel, but the needling member only contacts the reagent within the transfer chamber context. This intermediary structure maintains efficient reagent flow for detection while isolating the needling member from continuous reagent exposure, reducing maintenance needs.
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
Ensures detection accuracy and reduces the frequency of maintenance and cleaning for medical analysis equipment by preventing reagent contact with the needling member and minimizing reagent vaporization.
Implementation Method 1
the needling member presses the soft member and the first sealing film. The soft member is not liable to be pierced during the pressing by the needling member, and the first sealing film is pierced during the pressing by the needling member
Implementation Method 2
a first sealing film provided at the first end and capable of sealing the first opening
Implementation Method 3
the first sealing film is fixed to an end surface of the first end by hot pressing; and the second sealing film is fixed to an end surface of the second end by hot pressing
Data Source
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AI summary
The present application relates to a reagent transfer device including a reagent container, a first sealing film, and a cover. The reagent container is provided with a first end. The first end is provided with a first opening in communication with a first chamber of the reagent container. The first sealing film is provided at the first end and capable of sealing the first opening. The cover is covered at the first end. The cover is provided with a soft member corresponding to a position of the first opening and not liable to be pierced by a needling member.