Cardboard Carrier Plate with Pivoting Section for Immersion Testing
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Solution Overview
Problem
Existing devices for detecting analytes in liquid samples are costly, bulky, and not suitable for mobile or outdoor use under varying light and weather conditions, requiring a more portable, space-efficient, and environmentally friendly solution.
Innovation Solution
A compact device design featuring a carrier plate with a pivoted section for test strip holders, a cover layer, and test strips arranged on both sides of the device, made from cardboard and a decomposable film, allowing for immersion testing and efficient use of space while protecting the test strips from contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a traditional test cassette design is used, then the device can perform lateral flow immunoassay, but the production becomes complex and requires relatively large space
Solution Approach 1:
The patent merges the carrier plate and cover into a single integrated component formed from one piece of material. The carrier plate includes integrated receptacles for holding test strips, and the cover is formed as one piece with the carrier plate, eliminating the need for separate assembly steps. This integration significantly simplifies production while maintaining the functional capabilities of the test device.
Solution Approach 2:
The carrier plate serves multiple functions simultaneously: it provides structural support, holds multiple test strips through integrated receptacles, provides a mounting surface for the cover, and enables immersion testing through its pivoting capability. This multi-functionality reduces the number of separate components needed, thereby simplifying the overall device structure and manufacturing process.
2Volume of moving object
If a compact design with carrier plate and cover is used, then the device requires little space and is portable, but the test strips need protection from contamination
Solution Approach 1:
The cover is formed as a thin, flexible film that is integrally molded onto the carrier plate. This thin film provides sufficient protection for the test strips from contamination while maintaining the compact and portable nature of the device. The film covers the areas of the test strips not already covered with the coating, effectively protecting them without adding significant bulk.
Solution Approach 2:
The cover is integrally molded onto the carrier plate as a single piece, creating a unified protective structure. This integration ensures that the protection is built-in from the start, eliminating the need for separate protective components and maintaining the compact design while providing effective contamination protection.
3Ease of manufacture
If the carrier plate is made of cardboard with embossed receptacles, then the device is environmentally friendly and simple, but the test strip receptacles need to be securely formed
Solution Approach 1:
The carrier plate is made from cardboard, a porous and flexible material that can be easily formed and embossed. The receptacles are created through embossing, which is a simple process that forms the necessary structures without requiring complex manufacturing equipment. This approach maintains manufacturing simplicity while achieving the required precision for secure test strip placement.
Solution Approach 2:
The carrier plate undergoes physical transformation through embossing, where pressure is applied to change the shape and form the receptacles. This parameter change approach allows for the creation of secure receptacles in a simple manufacturing process, maintaining both ease of manufacture and manufacturing precision.
4Adaptability or versatility
If a pivoting section is added for immersion testing, then the device enables immersion test capability, but the device structure becomes more complex
Solution Approach 1:
The carrier plate incorporates a pivoting section that can rotate between a first position for lateral flow testing and a second position for immersion testing. This dynamic element allows the device to adapt to different testing methods without requiring completely separate structures. The pivoting mechanism enables versatility while adding minimal structural complexity compared to having separate devices for each testing method.
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
The device enables reliable, portable, and cost-effective detection of multiple analytes in a compact format, suitable for outdoor use and environmentally friendly disposal, while maintaining the accuracy of lateral flow assays.
Implementation Method 1
The test cassette is designed for performing a lateral flow immunoassay, an aptamer-based assay, or an enzyme immunoassay (EIA)
Implementation Method 2
At least one inspection window is advantageously formed by a transparent area of the film
Implementation Method 3
the carrier plate has a section that can be pivoted along a hinge fold, which is not covered with the top layer in the area of the test strips and which is arranged in such a way that the sample receiving section of the test strips protrudes from the carrier plate at least partially after the section is folded
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a device for the visual detection of analytes in an analytical or liquid sample originating from a human or animal organism, comprising a carrier plate (1) with at least one test strip receptacle (12) in which a test strip (3) provided with a sample receptacle section (32) and a test section (34) is arranged, which at least one test strip receptacle (12) is at least partially closed by a cover layer (4) which is permanently connected to the carrier plate (1), which cover layer (4) has a control window (41) in the area of the test section (34) of the test strip (3) of the at least one test strip receptacle (12).The carrier plate (1) has a section (16) that can be pivoted along a hinge fold (14), which is not provided with the cover layer in the area of the test strips (3) and which is arranged such that the sample receiving section (32) of the test strips (3) protrudes at least partially from the carrier plate (1) after the section (16) is folded.