Fan-shaped immunochromatography test kit
The fan-shaped arrangement of immunochromatographic strips with a centralized drop area and thin strips addresses the challenge of multiple target detection in immunochromatography, improving operability and reducing sample volume requirements.
Patent Information
- Application Number
- JP2025003453U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-01-14
- Estimated Expiration
- 2035-09-18
AI Technical Summary
Existing immunochromatography test kits face challenges in efficiently detecting multiple target substances simultaneously due to the need for multiple sample solution dropping sections and increased sample volume requirements, leading to cumbersome operations.
The kit arranges multiple immunochromatographic strips in a fan shape with a centralized sample solution drop area and uses fiber paper to distribute the solution evenly, while thinning each strip to 3 mm width to reduce sample volume.
This design simplifies the operation by using a single dropper and allows accurate measurement with a minimal sample volume, enhancing usability and efficiency.
Smart Images

Figure 0003254296000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to an immunochromatography test kit that has a built-in sample solution dropping section for measurement in immunochromatography, in which multiple immunochromatographic strips are arranged in a fan shape. [Background technology]
[0002] A typical immunochromatography test kit is known to have a configuration in which one immunochromatographic strip is provided for one drop of sample solution, or a configuration in which multiple immunochromatographic strips are provided for an expanded drop of sample solution. Summary of the Invention [Problem to be solved by the invention]
[0003] Immunochromatography test kits have various advantages, such as the ability to obtain measurement results quickly, ease of operation without the need for large equipment, and the ability to be stored at room temperature. In recent years, their use has been expanding for testing for controlled substances such as stimulants and cannabis, as well as viral antigen tests for influenza and COVID-19, pregnancy tests, and allergy tests. However, when multiple target substances are to be detected simultaneously, multiple immunochromatographic strips must be placed in the housing. As a result, the same number of sample solution dropping sections must be installed as the number of strips, or the number of dropping sections must be expanded, making the operation of the measurement operator cumbersome. Furthermore, problems such as an increase in the amount of sample solution required and a shortage of sample volume have arisen. [Means for solving the problem]
[0004] This device arranges multiple immunochromatographic strips in a fan shape, with the key area serving as the drop area for the sample solution, concentrating the drop areas in one location. Fiber paper is then placed at the key drop area to ensure that the sample solution reaches all of the immunochromatographic strips arranged in a fan shape. Furthermore, by thinning the width of each immunochromatographic strip to approximately 3 mm, the sample volume is significantly reduced, solving the aforementioned problems. [Effects of the Invention]
[0005] The immunochromatography test kit of this invention has only one dropper for the sample solution, eliminating the need for multiple droppers or extended droppers as in the past, leading to improved operability and simplified work. Furthermore, by making each immunochromatography strip as thin as approximately 3 mm in width, it is possible to perform measurements using a small amount of sample solution. [Brief explanation of the drawings]
[0006] [Figure 1] Top view of an immunochromatography test kit. [Figure 2] Figure 1. Exploded view of the test kit. [Explanation of symbols] 1 chassis 2. Sample solution dropping section 3. Fiber paper 4 Immunochromatographic Strips 5. The main part of the immunochromatographic strip arranged in a fan shape
Claims
1. 1. A test kit for immunochromatography measurement, characterized in that the housing is formed in a fan shape or an inverted oval shape.
2. 2. The test kit according to claim 1, wherein a plurality of immunochromatographic strips are arranged in a fan shape starting from one drop portion of the sample solution.