Biological Sample Preprocessing Device with Sliding Ejection Mechanism
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Solution Overview
Problem
Manual operations in biological sample pretreatment processes pose a risk of infection and contamination due to direct contact with sampling and reaction tubes.
Innovation Solution
A biological sample pretreatment device featuring a base body with an elongated accommodation space and a moveable part that allows for the alignment and transfer of sampling and reaction tubes without direct hand contact, utilizing a sliding mechanism to eject the reaction tube from the device for safe handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual operations are used for sample pretreatment, then the process is simple and flexible, but the risk of infection and contamination increases due to direct hand contact with tubes
Solution Approach 1:
The patent introduces a device with a base body and moveable part that acts as an intermediary between the operator's hand and the reaction tube. The moveable part can be pushed by the operator to slide and eject the reaction tube, eliminating direct hand contact while maintaining operational simplicity. This intermediary mechanism resolves the contradiction by providing protection without requiring complex automated systems.
Solution Approach 2:
The device enables self-service operation where the operator simply pushes the moveable part, and the system automatically performs the tube ejection function. The base body and moveable part work together to automatically transfer the reaction tube without requiring manual handling, making the system self-sufficient in protecting the operator while maintaining ease of use.
2Reliability
If manual handling of reaction tubes is used, then the operation is straightforward, but the integrity of the sample pretreatment process is compromised due to contamination risk
Solution Approach 1:
The moveable part serves as an intermediary that the operator pushes to initiate the tube ejection process. This intermediary mechanism maintains sample integrity by preventing direct hand contact with the reaction tube while keeping the operation straightforward, as the operator only needs to push the moveable part rather than handle the tube directly.
Solution Approach 2:
The patent replaces the manual mechanical system of directly holding and transferring tubes with a device-based mechanical system. The base body and moveable part form a mechanical system that automatically handles the tube transfer, maintaining operational simplicity while ensuring sample integrity through eliminated direct contact.
3Object-affected harmful factors
If a device with moveable part is used to eject reaction tube, then operator safety is improved, but the device structure becomes more complex
Solution Approach 1:
The device is segmented into two main parts: a base body and a moveable part. This segmentation allows each part to perform its specific function independently - the base body provides structural support and housing, while the moveable part handles the tube ejection function. This simple segmentation provides operator protection without requiring complex integrated mechanisms.
Solution Approach 2:
The moveable part introduces dynamic functionality to the otherwise static base body. The moveable part can slide between positions, providing the ejection function when needed while remaining stationary otherwise. This dynamic element adds protection capability without significantly increasing overall device complexity, as it builds upon the simple base body structure.
Data Source
AI summary
A biological sample pretreatment device includes a base body and a moveable part. The base body is formed with an elongated accommodation space configured to accommodate a sampling tube and a reaction tube aligned with each other. The moveable part moveably connects to the base body for ejecting the reaction tube from the base body.