Test tube convenient for observing agglutination degree of immune test
By designing test tubes with base sleeves and supports, combined with a 45° tilt angle and a frosted tube body, the problems of tipping and contamination during rotation observation of existing test tubes are solved, enabling observation without blind spots and enhanced light and dark contrast, thus improving the accuracy and convenience of observing the degree of agglutination.
Patent Information
- Application Number
- CN202520520371.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing immunoassay agglutination tubes are prone to tipping over when rotated for observation, requiring manual adjustment of the tilt angle, making observation inconvenient. Light refraction has a significant impact, and the tube opening can easily slip, causing laboratory contamination. Furthermore, the degree of agglutination is difficult to observe.
A test tube with a base sleeve, a support, and a bottom box was designed. The base sleeve and support can be rotated to achieve 360° observation without blind spots. Combined with a 45° tilt angle and a frosted tube body, light reflection is used to create a contrast between light and dark. A magnifying glass is provided for magnified observation. The tube opening is thickened to prevent slippage.
It enables observation from all angles, enhances the contrast between light and dark in the agglomeration reaction, reduces laboratory contamination, and improves the accuracy and convenience of observing the degree of agglomeration.
Smart Images

Figure CN223774872U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, and specifically relates to a test tube that facilitates the observation of the degree of agglutination in immune tests. Background Technology
[0002] Immunoagglutination is a serological test in which particulate antigens agglutinate upon binding with their corresponding antibodies. Under the influence of electrolytes, the antigen-antibody complex forms a visible agglutination mass over a certain period. The test can be performed on a glass plate (glass plate agglutination test), used for bacterial identification and qualitative antibody detection; or in a test tube (test tube agglutination test), primarily used for antiserum titer determination. While test tubes for observing immunoagglutination are specifically designed for this purpose, they are prone to tipping over when rotating the sample, requiring manual adjustment of the tilt angle. Furthermore, the agglutination reaction is sometimes subtle and difficult to observe, and light refraction further hinders observation. The smooth top makes them slippery when picked up, and the lack of a thickened opening allows liquid to spill easily. Tilting the tube during observation can also lead to laboratory contamination. To address these issues, we propose a test tube designed for easier observation of immunoagglutination. Utility Model Content
[0003] The purpose of this invention is to provide a test tube that facilitates the observation of the degree of agglutination in an immunoassay, with the advantages of allowing for observation without blind spots and facilitating the observation of the shape.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a test tube for easy observation of the degree of agglutination in an immunoassay, comprising a tube body, a bottom sleeve fitted to the bottom of the tube body, a support bolted to the bottom of the bottom sleeve, and the top of the support extending through the surface of the tube body, a bottom box fixedly fitted to the bottom of the support, a base rotatably connected to the top of the support surface, and an observation mechanism provided at the top of the tube body.
[0005] The above technical solution involves dripping antigen and antibody into the tube. After a period of time, the reaction at the bottom of the tube is observed through a magnifying glass. If the reaction is not clearly visible, the tube is rotated. The tube rotates the bottom sleeve, which in turn rotates the support, which in turn rotates the base box. This allows for 360° observation without blind spots, ensuring that the distribution of agglutinates at every angle can be stably observed. Stability is maintained during the rotation operation to prevent sample tipping. The 45° tilt angle adjusts the incident angle of ambient light to the optimal reflection range, creating a contrast enhancement effect on the surface of the agglutinates, making it easier to identify minute agglutination reactions. The magnifying glass, combined with the 45° observation angle, can magnify the projection of the agglutinated particles to the size that the human eye can best resolve.
[0006] The present invention is further configured such that the observation mechanism includes a tube opening located at the top of the tube body, the top surface of the tube body is provided with a frosted material, and the bottom of the tube body is provided with a flattened oval shape.
[0007] The above technical solution adopts a standard cylindrical tube body with a smooth and rounded top opening, a thickened tube mouth, and a flattened round bottom. The outer surface of the tube body has a frosted texture on the top 20% and remains transparent on the remaining 80%, which is more conducive to observing the degree of agglutination in the immunoassay. The frosted texture on the top 20% of the tube body makes it easier to pick up and less likely to slip. The thickened tube mouth makes it less likely for the liquid inside to spill out when tilted, reducing the probability of laboratory contamination.
[0008] The present invention is further configured such that the front side of the base is a sloping trapezoid.
[0009] The above technical solution is adopted: by setting a 45-degree inclined trapezoid, the 45° inclined plane can effectively utilize the reflection path of the incident light, so that the agglomerated particles form a clearer contrast between light and dark at a specific angle, which makes it easier to identify the micro-agglomeration reaction.
[0010] The present invention is further configured such that the top of the pipe opening is configured as an open shape.
[0011] The above technical solution, by setting an open shape, makes it less prone to leakage when adding liquid.
[0012] The present invention is further provided that a magnifying glass is embedded in the front of the base.
[0013] The above technical solution employs a magnifying glass to facilitate observation of the experimental results.
[0014] The present invention is further provided that the base has openings on both sides.
[0015] The above technical solution allows light to enter the bottom of the tube by setting an opening.
[0016] The present invention is further configured such that a bearing is rotatably connected to the bottom of the base box, and the bearing is rotatably connected to the bottom inside the base.
[0017] The above technical solution, by incorporating bearings, can stabilize the base box.
[0018] The present invention is further configured such that a gasket is adhered to the top of the inner wall of the bracket, and the inside of the gasket is fitted with the bottom of the tube surface.
[0019] The above technical solution, by setting a gasket, can stabilize the pipe body.
[0020] In summary, this utility model has the following beneficial effects:
[0021] 1. This utility model ensures that the test tube does not shift radially when rotated, allowing for 360° observation without blind spots. It ensures that the distribution of agglomerates at each angle can be stably observed, maintaining stability during rotation and preventing sample tipping. The 45° tilt angle adjusts the incident angle of ambient light to the optimal reflection range, creating a bright-dark contrast effect on the surface of the agglomerates, making it easier to identify minute agglomeration reactions. The magnifying glass, combined with the 45° observation angle, can magnify the projection of the agglomerate particles to the size that the human eye can best distinguish.
[0022] 2. This utility model features a standard cylindrical tube body with a smooth and rounded top opening, a thickened tube mouth, and a flattened round bottom. The top 20% of the tube body has a frosted texture, while the remaining 80% remains transparent, which facilitates observation of the degree of agglutination in the immunoassay. The frosted texture on the top 20% of the tube body makes it easy to pick up and prevents slippage. The thickened tube mouth makes it difficult for the liquid inside to spill out when tilted, reducing the probability of laboratory contamination. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a side view of the overall structure of this utility model;
[0025] Figure 3 This is a front view of the overall structure of this utility model;
[0026] Figure 4 This is a top view of the overall structure of this utility model;
[0027] Figure 5 This is a partial structural side sectional view of this utility model.
[0028] Reference numerals in the attached diagram: 1. Tube body; 2. Base sleeve; 3. Support; 4. Base box; 5. Base; 6. Tube opening; 7. Frosted material; 8. Flat round shape; 9. Magnifying glass; 10. Opening; 11. Bearing; 12. Gasket. Detailed Implementation
[0029] The present invention will be further described in detail below with reference to the accompanying drawings.
[0030] Example 1:
[0031] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5A test tube for easy observation of the degree of agglutination in an immune test includes a tube body 1, a bottom sleeve 2 attached to the bottom of the tube body 1, a support 3 attached to the bottom of the bottom sleeve 2, and the top of the support 3 extending through the surface of the tube body 1. A bottom box 4 is fixedly attached to the bottom of the support 3, and a base 5 is rotatably connected to the top of the surface of the support 3. An observation mechanism is provided at the top of the tube body 1. Antigen and antibody are dripped into the tube body 1. After a period of time, the reaction at the bottom of the tube body 1 is observed through a magnifying glass 9. If the reaction is not clearly visible, the tube body 1 is rotated. The tube body 1 rotates the bottom sleeve 2, the bottom sleeve 2 rotates the support 3, and the support 3 rotates the bottom box 4, allowing for 360° observation without blind spots.
[0032] refer to Figure 2 , Figure 5 The front of the base 5 is set as a 45-degree inclined trapezoid. By setting the 45-degree inclined trapezoid, the 45° inclined surface can effectively utilize the reflection path of the incident light, so that the aggregated particles form a clearer contrast between light and dark at a specific angle, making it easier to identify the micro-aggregation reaction.
[0033] refer to Figure 1 , Figure 4 The base 5 has a magnifying glass 9 embedded in its front. By setting the magnifying glass 9, the experimental results can be magnified for easy observation.
[0034] refer to Figure 2 The base 5 has openings 10 on both sides, which allow light to shine into the bottom of the tube 1.
[0035] refer to Figure 5 The bottom of the base box 4 is rotatably connected to a bearing 11, and the bearing 11 is rotatably connected to the bottom of the base 5. By setting the bearing 11, the base box 4 can be stabilized.
[0036] refer to Figure 5 A sleeve 12 is bonded to the top of the inner wall of the bracket 3, and the inside of the sleeve 12 is fitted with the bottom of the surface of the tube 1. By setting the sleeve 12, the tube 1 can be stabilized.
[0037] Brief description of usage: When an experiment is needed, drop the antigen and antibody into tube 1. After a period of time, observe the reaction at the bottom of tube 1 through magnifying glass 9. If the reaction is not clearly visible, rotate tube 1. Tube 1 will rotate the bottom sleeve 2, which in turn will rotate the support 3, which will then rotate the base box 4. This allows for 360° observation without blind spots, ensuring that the distribution of agglutinates at every angle can be stably observed. The rotation operation maintains stability and prevents the sample from tipping over. The 45° tilt angle can adjust the incident angle of ambient light to the optimal reflection range, creating a bright-dark contrast effect on the surface of the agglutinates, making it easier to identify tiny agglutination reactions. The magnifying glass 9, combined with the 45° observation angle, can magnify the projection of the agglutinated particles to the size that the human eye can best distinguish.
[0038] Example 2:
[0039] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A test tube for easy observation of the degree of agglutination in an immunoassay test. The observation mechanism includes a tube opening 6, which is located at the top of the tube body 1. The top surface of the tube body 1 is provided with a frosted material 7, and the bottom of the tube body 1 is provided with a flattened oval shape 8. The tube body is a standard cylindrical tube with a smooth and rounded top opening 10. The tube opening 6 is thickened, and the bottom transitions to a flattened oval shape. The outer surface of the tube body has a frosted texture on the top 20% and remains transparent on the remaining 80%, which is more conducive to observing the degree of agglutination in the immunoassay test. The frosted texture on the top 20% of the tube body makes it easy to pick up and prevents slippage. The thickened tube opening 6 makes it less likely for the liquid inside the tube to spill out when tilted, reducing the probability of laboratory contamination.
[0040] Referring to the figure, the top of the nozzle 6 is designed with an open shape, which makes it less likely to leak when adding liquid.
[0041] Brief description of usage: For easy observation, the test tube is set as a standard cylindrical tube with a smooth and rounded top opening 10, a thickened tube opening 6, and a flattened round bottom. The outer surface of the tube is frosted on the top 20% and transparent on the remaining 80%, which is more conducive to observing the degree of agglutination in the immunoassay. The frosted texture on the top 20% of the tube makes it easy to pick up and prevents slippage. The thickened tube opening 6 makes it less likely for the liquid inside to spill out when tilted, reducing the probability of laboratory contamination.
[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A test tube for easy observation of the degree of agglutination in an immunoassay, comprising a tube body (1), characterized in that: The bottom of the tube (1) is fitted with a bottom sleeve (2), and a bracket (3) is bolted to the bottom of the bottom sleeve (2). The top of the bracket (3) is penetrated through the surface of the tube (1). A bottom box (4) is fixedly fitted to the bottom of the bracket (3). A base (5) is rotatably connected to the top of the surface of the bracket (3). An observation mechanism is provided on the top of the tube (1).
2. The test tube for convenient observation of the degree of agglutination in an immunoassay according to claim 1, characterized in that: The observation mechanism includes a nozzle (6) located at the top of the tube body (1). The top surface of the tube body (1) is provided with a frosted material (7), and the bottom of the inside of the tube body (1) is provided with a flat oval shape (8).
3. The test tube for convenient observation of the degree of agglutination in an immunoassay according to claim 1, characterized in that: The front of the base (5) is set as a 45-degree inclined trapezoid.
4. A test tube for convenient observation of the degree of agglutination in an immunoassay, as described in claim 2, characterized in that: The top of the opening (6) is set in an open shape.
5. A test tube for convenient observation of the degree of agglutination in an immunoassay, as described in claim 1, characterized in that: A magnifying glass (9) is embedded in the front of the base (5).
6. A test tube for convenient observation of the degree of agglutination in an immunoassay, as described in claim 1, characterized in that: The base (5) has openings (10) on both sides.
7. A test tube for convenient observation of the degree of agglutination in an immunoassay, as described in claim 1, characterized in that: The bottom of the base box (4) is rotatably connected to a bearing (11), and the bearing (11) is rotatably connected to the bottom of the base (5).
8. A test tube for convenient observation of the degree of agglutination in an immunoassay, as described in claim 1, characterized in that: A sleeve (12) is bonded to the top of the inner wall of the bracket (3), and the inside of the sleeve (12) is sleeved with the bottom of the surface of the tube (1).