Sample Chamber Piercing for Convenient Liquid Testing
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Solution Overview
Problem
Existing sample collection and testing devices for liquid samples, particularly fecal samples, are inconvenient for home use and prone to sample deterioration during transportation, leading to inaccurate test results, and lack the ability to perform multiple analyte detections simultaneously.
Innovation Solution
A device comprising a sample chamber and an accommodating chamber, where the sample chamber is designed to release liquid samples upon insertion into the accommodating chamber, using a piercing element to ensure hermetic sealing and facilitate fluid communication with a testing chamber, allowing for separate collection and detection steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If samples are collected and stored by special collection tools then sent to professional institutions for testing, then sample collection is possible, but the operation is inconvenient and samples deteriorate during transportation affecting test results
Solution Approach 1:
The patent combines the sample collection device and testing device into a single integrated unit. The collection container includes an inner container for sample collection and an outer container with a testing chamber that contains test strips. When the inner container is inserted into the outer container, the sample is automatically transferred to the testing chamber and tested in situ, eliminating the need for separate transportation to professional institutions while maintaining sample integrity and enabling convenient home testing.
Solution Approach 2:
The patent introduces a treatment liquid as an intermediary substance between the collected sample and the test strips. The treatment liquid is stored in a treatment liquid container within the outer container and is used to process the sample before it contacts the test strips. This intermediary treatment ensures proper sample preparation and maintains sample integrity during the automated transfer and testing process, improving both reliability and ease of operation.
2Measurement precision
If multiple test strips are used for detecting multiple targets simultaneously, then detection accuracy improves, but device complexity increases
Solution Approach 1:
The testing chamber is designed with universal functionality to accommodate multiple types of test strips simultaneously. The chamber includes a placement area where multiple test strips can be positioned, and the device can perform parallel testing for multiple targets (such as drug screening, hormone detection, and infectious disease markers) using a single sample. This multi-functional design enables accurate detection of multiple analytes without requiring separate testing devices, thereby improving measurement precision while maintaining relatively simple device structure.
3Reliability
If sample collection and testing are performed separately, then testing can be done at professional institutions, but samples deteriorate during transportation and operation errors increase
Solution Approach 1:
The patent implements preliminary action by pre-preparing the testing environment and reagents within the integrated device before sample collection. The outer container is pre-loaded with test strips and treatment liquid in the testing chamber. After sample collection, the inner container is simply inserted into the outer container, triggering automatic sample transfer and testing. This preliminary preparation eliminates the need for complex post-collection processing and professional institution intervention, maintaining test result accuracy while significantly improving testing efficiency and enabling immediate results at the collection site.
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
Enables convenient, accurate, and simultaneous testing of multiple analytes in liquid samples, including fecal samples, by ensuring sample integrity and reducing operation errors, suitable for self-testing by individuals with limited technical skills.
Implementation Method 1
a piercing element piercing the sealing film, thereby releasing the liquid sample
Data Source
AI summary
The invention provides a device, and the device includes: a sample chamber for receiving a sample collector, where the sample chamber is provided with an easy-to-pierce sealing film; and an accommodating chamber for receiving the sample chamber, where the accommodating chamber includes a piercing element for piercing the sealing film to release a liquid in the sample chamber therein, and a blade structure for laterally cutting the sealing film.