Reagent tube convenient to operate and used for medical examination experiments
By incorporating a reagent tube and a separating membrane within the reagent tube, and utilizing a pressing column and a needle to facilitate the release of the reagent, the design solves the problems of cumbersome operation and poor sealing of traditional reagent tubes, thereby improving the convenience and accuracy of testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional reagent tubes require manual opening to add reagents after incubation, which is cumbersome and prone to sample contamination. Existing pre-filled reagent tubes have poor sealing, leading to inaccurate test results.
A reagent tube and a separating membrane are set inside the reagent tube. The design of the pressing column and the needle enables the pre-sealed storage and convenient release of the reagent, avoiding repeated opening operations.
Simplify operating procedures, reduce the risk of sample contamination, and improve the accuracy and convenience of test results.
Smart Images
Figure CN223974089U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of test reagent tubes, specifically designed as an easy-to-use test reagent tube for medical testing. Background Technology
[0002] Medical laboratory tests are frequently performed and are an important method for the preliminary diagnosis of diseases. Test tubes are commonly used as containers for various samples, and the results are determined by observing the reaction after incubation and the addition of a reaction agent. For example, in the detection of sialidase in bacterial vaginosis (BV), an enzymatic colorimetric method is typically used, requiring test tubes. The specific steps are: 1. Open the test tube cap and immerse a vaginal secretion swab into the test tube containing the reaction buffer; 2. Initial incubation: Incubate at 37°C for 10 minutes to allow sialidase to react with the substrate; 3. Second opening: Open the tube cap again and add the colorimetric reagent (such as Solid Blue B salt); 4. Result interpretation: If sialidase is present, the solution will turn blue (due to oxidation of free indole derivatives); otherwise, it will remain colorless / yellow.
[0003] Traditional reagent tubes require manual opening and addition of reagents after incubation, which is cumbersome and prone to sample contamination. While there are pre-filled reagent tubes available, they suffer from poor sealing and uncontrollable triggering, making them inconvenient for operators performing large-scale medical tests and potentially leading to inaccurate results. Utility Model Content
[0004] To address the aforementioned problems, this invention proposes an easy-to-use reagent tube for medical testing. By placing a reagent tube containing the reactant inside the tube cap, the reactant is pre-placed inside the reagent tube. The reactant is then independently sealed using a separating membrane. During medical testing, the separating membrane is punctured by a pressing post with a needle, thus achieving the goal of conducting medical testing without repeatedly opening the tube cap.
[0005] To achieve the technical objectives mentioned above, this utility model is implemented through the following technical solution: a reagent tube for easy-to-operate medical testing, comprising a tube body;
[0006] The tube is a cylindrical tube with an open top, and the bottom can hold the sample. A tube cap is threaded onto the top of the tube. A reactant tube is installed inside the lower part of the tube cap. An isolation membrane is installed inside the reactant tube to isolate the reactant. A pressing column with a needle is installed inside the upper part of the tube cap. By controlling the pressing column, the reactant in the reactant tube can be released.
[0007] Furthermore, the reactant tube is a cylindrical tube that runs vertically through the tube, with its upper end threadedly connected to a tube cap. A separating membrane is installed at the bottom of the reactant tube, creating an internal cavity that can hold the reactant.
[0008] A flow guide port is connected below the isolation membrane at the bottom of the reactant tube. The flow guide port is funnel-shaped, which facilitates the rapid flow of reactant to the bottom of the tube.
[0009] An isolation membrane identical to the one inside the reactant tube is installed above the junction of the tube cap and the reactant tube, so that a sealed internal cavity is formed between the two isolation membranes after the reactant tube and the tube cap are fitted together.
[0010] The pressing column is symmetrically equipped with sliding cylinders on both sides, and the sliding cylinders are perpendicular to the axis of the pressing column.
[0011] The left and right sides of the tube cap are provided with centrally symmetrical L-shaped grooves. The width of the L-shaped grooves is the same as the diameter of the sliding cylinder, which allows the sliding cylinder to slide in the L-shaped grooves. After the sliding cylinder of the pressing column is connected to the tube cap through the L-shaped grooves, the pressing column can rotate laterally and then move downward, preventing the pressing column from moving directly downward after accidental contact.
[0012] The isolation membrane is a fragile membrane and can remain intact when carrying the reactant;
[0013] The needle is installed at the center of the bottom of the pressing column and coincides with the axis of the pressing column. The end of the needle is conical and the length of the needle is greater than the distance between the two isolation membranes, so that the pressing column can puncture both isolation membranes after moving the needle downward.
[0014] Furthermore, a partition plate is installed inside the pipe cap above the isolation membrane. The partition plate has the same inner diameter as the pipe cap and separates the top of the pipe cap from the isolation membrane.
[0015] The partition plate has a hole at its center with the same diameter as the needle, and the edge of the hole is covered with a soft rubber layer, so that the needle can pass through the partition plate and maintain the isolation effect of the partition plate.
[0016] A spring is installed above the partition plate, and the upper end of the spring is connected to the pressing column. The spring keeps the pressing column above the tube cover, preventing the pressing column from sliding down on its own when not in use, and further preventing accidental activation.
[0017] The beneficial effects of this utility model are:
[0018] 1. This utility model can simplify the operation steps in medical testing experiments. The reagent tube and the isolation membrane connected inside the tube cap can be used to pre-fill the cavity, which can avoid repeatedly opening the test reagent tube.
[0019] 2. By using the pressing column and the needle inside the tube cap, the pressing column can be pressed after the initial incubation to drive the needle to puncture the isolation membrane, releasing the reactant in the inner cavity into the tube to mix with the test sample. The pressing trigger method makes it easy for operators to use.
[0020] 3. By using L-shaped grooves on both sides of the tube cap to cooperate with the sliding cylinder on the pressing column, the pressing column needs to be rotated before pressing, thus protecting the pressing column from accidental contact. Furthermore, by using a perforated partition plate in cooperation with a spring, the pressing column is further protected from accidental contact while maintaining the sealing of the tube cap. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments are briefly introduced below.
[0022] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;
[0023] Figure 2 This is an exploded view of a portion of the pipe cap structure of Embodiment 1 of this utility model;
[0024] Figure 3 This is an isometric sectional view of Embodiment 1 of this utility model;
[0025] Figure 4 This is an isometric sectional view of Embodiment 2 of this utility model.
[0026] The structural names represented by the labels in the attached diagram are as follows:
[0027] 1-Tube body, 2-Tube cap, 201-L-shaped groove, 3-Pressing column, 301-Needle, 302-Sliding cylinder, 4-Reactant tube, 401-Guide port, 5-Isolation membrane, 501-Inner cavity, 6-Spring, 7-Separator plate. Detailed Implementation
[0028] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.
[0029] Example 1
[0030] See Figures 1 to 3 As shown, and based on the contents of this specification, a medical testing reagent tube that is easy to operate is proposed, including a tube body 1;
[0031] The tube body 1 is a cylindrical tube with an open top, and the bottom can hold the sample. It is a transparent tube that allows direct observation of the internal condition. The tube body 1 is fitted with a tube cap 2 by a thread. The reactant tube 4 is installed inside the tube cap 2. The reactant tube 4 is a cylindrical tube that runs vertically through the tube and is fitted with the tube cap 2 by a thread at the top. A separating membrane 5 is installed at the bottom of the reactant tube 4, so that an internal cavity 501 is formed inside the reactant tube 4, which can hold the reactant. The separating membrane 5 is a fragile membrane that can remain intact when carrying the reactant. The same separating membrane 5 as the inside of the reactant tube 4 is installed above the joint between the tube cap 2 and the reactant tube 4, so that a sealed internal cavity 501 is formed between the two separating membranes 5 after the reactant tube 4 and the tube cap 2 are fitted together.
[0032] Inside the tube cap 2, a pressing post 3 with a needle 301 is installed at the top. The needle 301 is installed at the bottom center of the pressing post 3 and coincides with the axis of the pressing post 3. The end of the needle 301 is conical, and the length of the needle 301 is greater than the distance between the two isolation membranes 5, so that when the pressing post 3 moves, it drives the needle 301 downward and can pierce both isolation membranes 5. Sliding cylinders 302 are symmetrically installed on both sides of the pressing post 3. The sliding cylinders 302 are perpendicular to the axis of the pressing post 3. The left and right sides of the tube cap 2 are... The two sides are provided with centrally symmetrical L-shaped grooves 201. The width of the L-shaped grooves 201 is the same as the diameter of the sliding cylinder 302, which allows the sliding cylinder 302 to slide in the L-shaped grooves 201. After the sliding cylinder 302 of the pressing column 3 is connected to the tube cap 2 through the L-shaped grooves 201, the pressing column 3 can rotate laterally and then move downward, preventing the pressing column 3 from moving directly downward after accidental contact. By controlling the pressing column 3 to rotate first and then move downward, the reactant in the reactant tube 4 can be released.
[0033] Below the isolation membrane 5 at the bottom of the reactant tube 4, there is a flow port 401. The flow port 401 is funnel-shaped. When the reactant in the inner cavity 501 is released, the reactant can be quickly guided into the tube body 1 through the flow port to mix with the test sample.
[0034] When using this reagent tube, first load the sample containing the test substance into the tube body 1, then cover it with the tube cap 2 and incubate. After a period of time, remove the reagent tube. First, rotate the pressing column 3 above the tube cap 2. The pressing column 3 causes the sliding cylinder 302 to slide laterally along the L-shaped groove 201, and then slides downward along the L-shaped groove 201. At this time, the needle 301 moves downward with the pressing column 3, passes through the partition plate 7, and first punctures the isolation membrane 5 below the partition plate 7 to enter the inner cavity 501. Then, it continues to move downward until it punctures the isolation membrane 5 inside the reagent tube 4, thereby releasing the reagent in the inner cavity 501. The reagent flows into the tube body 1 through the guide port 401 and mixes with the test sample. After shaking the reagent tube, the results can be observed, and the medical test experiment is completed.
[0035] Example 2
[0036] See Figures 1 to 4 As shown, the difference from Embodiment 1 is that a partition plate 7 is installed inside the tube cap 2 above the isolation membrane 5. The partition plate 7 has the same inner diameter as the tube cap 2 and separates the top of the tube cap 2 from the isolation membrane 5. A hole with the same diameter as the needle 301 is opened at the center of the partition plate 7, so that the needle 301 can pass through the partition plate 7. The partition plate 7 separates the space above the tube cap 2 from the space where the isolation membrane 5 is located, so that the space after the tube body 1 and the inner cavity 501 are connected can be kept closed after the needle 301 passes through the partition plate 7.
[0037] A spring 6 is installed above the partition plate 7. The upper end of the spring 6 is connected to the pressing column 3. The spring 6 keeps the pressing column 3 above the tube cover 2 to prevent the pressing column 3 from sliding down on its own when not in operation, and further prevents accidental contact. When the reactant in the reactant tube 4 needs to be released after incubation, first rotate the pressing column 3 to make the sliding cylinder 302 slide laterally along the L-shaped slide groove 201, and then slide downward along the L-shaped slide groove 201. At this time, under the action of the spring 6, an upward force can be applied to the pressing column 3 to further prevent accidental release of the reactant after accidental contact.
[0038] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The preferred embodiments do not describe all details exhaustively, nor do they limit the present invention to the specific implementations described. Obviously, based on the content of this specification, those skilled in the art will understand that various modifications and variations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A reagent tube for medical examination experiments which is convenient to operate, characterized in that, The utility model provides a kind of reaction agent releasing device, including pipe body (1): The upper portion of the pipe body (1) is sleeved with a pipe cover (2) through threads, a reagent tube (4) is installed inside the pipe cover (2) below, an isolation film (5) is installed inside the reagent tube (4), and a pressing column (3) with a needle (301) is installed inside the upper portion of the pipe cover (2), and the reagent in the reagent tube (4) can be released by controlling the sliding of the pressing column (3).
2. The reagent tube for medical examination experiments convenient to operate according to claim 1, characterized in that: The upper end of the reagent tube (4) is sleeved with the pipe cover (2) through threads, and the bottom of the reagent tube (4) is installed with an isolation film (5).
3. The reagent tube for medical examination tests convenient to operate according to claim 2, characterized in that: The bottom of the reagent tube (4) is connected with a flow guide port (401) below the isolation film (5), and the flow guide port (401) is funnel-shaped.
4. The reagent tube for medical examination tests convenient to operate according to claim 3, characterized in that: The upper portion of the pipe cover (2) and the reagent tube (4) is sleeved with the same isolation film (5) inside the reagent tube (4), so that a sealed inner cavity (501) can be formed between the two isolation films (5) after the reagent tube (4) is sleeved with the pipe cover (2).
5. The reagent tube for medical examination tests convenient to operate according to claim 4, characterized in that: The two sides of the pressing column (3) are symmetrically installed with sliding cylinders (302), and the sliding cylinders (302) are perpendicular to the axis of the pressing column (3).
6. The reagent tube for medical examination experiments convenient to operate according to claim 5, characterized in that: The pipe cover (2) is provided with center-symmetric L-shaped sliding grooves (201) on the left and right sides, and the width of the L-shaped sliding grooves (201) is the same as the diameter of the sliding cylinders (302).
7. The reagent tube for medical examination tests convenient to operate according to claim 6, characterized in that: The isolation film (5) is a fragile film and can maintain an intact state when carrying reagents.
8. The reagent tube for medical examination tests convenient to operate according to claim 7, characterized in that: The needle (301) is installed at the bottom center of the pressing column (3) and coincides with the axis of the pressing column (3), the tip of the needle (301) is conical, the length of the needle (301) is greater than the distance between the two isolation films (5), so that the two isolation films (5) can be pierced when the pressing column (3) moves downward.
9. The reagent tube for medical examination tests convenient to operate according to claim 8, characterized in that: The pipe cover (2) is installed with a partition plate (7) above the isolation film (5) inside, and the inner diameter of the partition plate (7) is the same as that of the pipe cover (2).
10. The reagent tube for medical examination tests convenient to operate according to claim 9, characterized in that: A hole with the same diameter as the needle (301) is formed at the center of the partition plate (7), and a soft rubber layer is coated around the hole to maintain the isolation effect when the partition plate (7) is pierced by the needle (301).
11. The reagent tube for medical examination tests convenient to operate according to claim 9, characterized in that: The partition plate (7) is installed with a spring (6) above, and the upper end of the spring (6) is connected with the pressing column (3).