Rapid detection device for respiratory tract infection

Abstract

The utility model relates to the field of medical auxiliary instruments, in particular to a rapid respiratory tract infection detection device. Comprising a test paper unit, a storage unit, a test paper unit shell and test paper, a detection cavity is formed in the shell, the test paper is located in the detection cavity, and the shell is provided with an observation window right opposite to a test paper developing area; the storage unit comprises a solution bottle, an opening capable of being closed is formed in the solution bottle, the storage unit further comprises a communicating pipe and a sealing end, one end of the communicating pipe is communicated with the detection cavity, the other end of the communicating pipe extends into the solution bottle, the sealing end is located at the end, away from the detection cavity, of the communicating pipe, and a connecting part capable of being damaged is arranged between the sealing end and the communicating pipe. The rapid respiratory tract infection detection device can isolate the test paper from the outside, prevent the test paper from being polluted, and meanwhile avoid cross infection caused by sample leakage in the detection process.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary devices, specifically to a rapid detection device for respiratory tract infections. Background Technology

[0002] Currently, some respiratory diseases can be quickly detected using antigen test kits. Taking the colloidal gold method as an example, after taking a throat swab sample from the patient, the throat swab is immersed in the sample extraction solution to mix the samples. Then, the sample extraction solution mixed with the sample is dropped onto the test strip. After standing for a certain period of time, the patient can determine whether they are infected with the disease based on the negative or positive result of the test strip reaction. Patients can quickly complete the self-test at home.

[0003] However, this type of kit has the test strip and sample extraction solution packaged separately. During testing, the sample extraction solution must be opened first, the throat swab and sample extraction solution thoroughly mixed, and then the test strip opened. The container containing the sample extraction solution is then capped, and the sample extraction solution is dripped into the sample well on the test strip. The sample extraction solution is gradually drawn into the test strip by the siphon effect. Finally, to prevent excess sample extraction solution leakage and cross-infection, the container containing the sample extraction solution and the completed test strip must be sealed in a sealed bag, making the entire operation quite complicated. Furthermore, to facilitate the dripping of the sample extraction solution, the sample well on the test strip is exposed, posing a risk of contamination if the outer packaging of the test strip is damaged. This is especially true if the damage is not obvious, making it difficult for users to notice in time. Using a contaminated test strip will affect the accuracy of the test.

[0004] Later, a test strip detection kit, as shown in patent number CN111876304A, emerged. This kit includes a box body, an mounting section, and a solution tube. The mounting section has an mounting channel with a piercing mechanism at its lower end. When the solution tube is inserted into the mounting channel, it can be pierced by the piercing mechanism, allowing the sample solution to flow into a receiving cavity. The receiving cavity contains a liquid storage tank and a chromatography test strip. The upper surface of the liquid storage tank is sealed by a sealing layer. The chromatography test strip is placed on the sealing layer and reacts with the sample solution. After the reaction is complete, the mounting section can be operated to pierce the sealing layer. Using this technical solution, after the chromatography test strip completes the test, operating the mounting section causes its end, which extends into the box body, to pierce the sealing layer. This allows the liquid in the liquid storage tank to react with the sample solution on the chromatography test strip and in the solution tube, completely removing any residual nucleic acid from the test strip detection kit. This prevents the solution tube from accidentally falling off or the device from breaking, thus avoiding internal exposure and any contamination.

[0005] However, in actual use, the test strip and the container holding the sample extract may tilt or fall off the table due to impact or slippage before the test is finished, resulting in leakage of the sample extract mixed with the sample, so there is still a risk of cross-infection. Utility Model Content

[0006] The present invention aims to provide a rapid detection device for respiratory infections, which isolates the test strip from the outside world to prevent the test strip from being contaminated, and at the same time avoids sample leakage during the testing process, thus preventing cross-infection.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a rapid respiratory infection detection device, comprising a test strip unit and a storage unit, a test strip unit housing and a test strip, a detection chamber provided inside the housing, the test strip located inside the detection chamber and an observation window on the housing facing the color development area of ​​the test strip; the storage unit comprises a solution bottle with a sealable opening, the storage unit further comprising a connecting tube and a sealing end, one end of the connecting tube communicating with the detection chamber and the other end extending into the solution bottle, the sealing end being located at the end of the connecting tube away from the detection chamber and having a damageable connection portion between it and the connecting tube.

[0008] The beneficial effects of this plan are:

[0009] 1. The solution bottle in this solution contains sample extract. After mixing the sample with the sample extract, the opening is closed, and the connecting part is broken to connect the connecting tube to the solution bottle. At this time, the sample extract can be forced into the detection chamber by squeezing the connecting tube and other means, and come into contact with the test strip in the detection chamber. Excess sample extract can continue to be stored in the solution bottle. Since the opening of the solution bottle is closed at this time, the excess sample extract will not leak, effectively avoiding cross-contamination.

[0010] 2. Secondly, after the opening is closed, neither the test strip nor the sample extraction solution will come into contact with the outside world, so the sample extraction solution at the test strip position will not leak. After the test is completed, there is no need to seal the test strip and solution bottle separately, making it more convenient to use and reducing the risk of cross-infection.

[0011] 3. Finally, since the opening of the solution bottle is closed when not in use, the sample extract and the test strip are completely isolated from the outside world by the solution bottle and the outer shell, thus avoiding contamination of the test strip and a decrease in accuracy.

[0012] Furthermore, the connecting tube is fitted with a protective sleeve, the two ends of which are fixed to the outer shell and the solution bottle, respectively.

[0013] The beneficial effects of this solution are: the protective sleeve protects the connecting tube, preventing damage to the connecting tube before use, which could lead to leakage of sample extract and contamination of the test strip.

[0014] Furthermore, the protective sleeve is a frustum-shaped structure with an inner diameter greater than that of the end near the solution bottle, and the protective sleeve is made of rigid material.

[0015] The beneficial effects of this solution are: the protective sleeve in this solution can better protect the connecting tube, and the connection area between the protective sleeve and the solution bottle is larger, resulting in a more stable connection.

[0016] Furthermore, the chamber was found to be under negative pressure.

[0017] The beneficial effects of this solution are: after the connection is broken, the sample extract in the solution bottle quickly enters the detection chamber under negative pressure, allowing the test strip to quickly and fully absorb the sample extract, thus improving the detection speed.

[0018] Furthermore, the solution bottle includes a bottle body and a bottle bottom, the bottle body is made of flexible material, and the connecting part is opposite to the bottle body.

[0019] The beneficial effect of this solution is that the flexible bottle body makes it easier to apply force to the connecting part, thereby destroying the connecting part.

[0020] Furthermore, the connecting tube is L-shaped, and the end of the connecting tube away from the detection cavity is located inside the bottle and tilted downwards.

[0021] The beneficial effect of this solution is that when the detection device is placed on the table with the detection plate horizontal, the end of the connecting tube can extend to the bottom of the solution bottle, ensuring that the sample extract can continue to be drawn into the detection chamber.

[0022] Furthermore, the detection chamber is equipped with a siphon layer, which is located below the test strip and in contact with it. The end of the connecting tube away from the solution bottle is in contact with the siphon layer.

[0023] The beneficial effects of this solution are: the siphon layer can more quickly and evenly disperse the sample extract into the detection chamber throughout the test strip, thereby ensuring that the sample extract is quickly absorbed throughout the test strip and improving detection efficiency. Attached Figure Description

[0024] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;

[0025] Figure 2 for Figure 1 Exploded view;

[0026] Figure 3 for Figure 1 Right vertical sectional view of the pilot test paper unit;

[0027] Figure 4 for Figure 2 Enlarged view of the central connecting tube;

[0028] Figure 5 This is a front vertical sectional view of Embodiment 2 of this utility model;

[0029] Figure 6 for Figure 5 Enlarged view of the solution bottle. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method:

[0031] The reference numerals in the accompanying drawings include: outer casing 1, observation window 11, detection chamber 12, observation plate 13, siphon layer 14, test paper 15, solution bottle 2, bottle bottom 21, bottle body 22, sealing plug 23, connecting tube 3, connecting part 4, and sealing end 5.

[0032] Example 1

[0033] Example 1 is basically as follows Figure 1 and Figure 2 As shown, a rapid respiratory infection detection device includes a test strip unit and a storage unit, a test strip unit housing 1 and a test strip 15, combined with... Figure 3 As shown, the outer casing 1 contains a detection chamber 12, which contains an siphon layer 14 and a test strip 15. The siphon layer 14 is laid flat at the bottom of the detection chamber 12, and the test strip 15 is laid flat on the siphon layer 14. In this embodiment, the siphon layer 14 is made of a water-absorbing material. The test strip 15 is selected according to the type of virus to be detected. The top of the detection chamber 12 has a window facing the color development area of ​​the test strip 15, which facilitates observation of the test results. The window is covered with a transparent observation plate 13. Specifically, in this embodiment, the observation plate 13 is located inside the detection chamber 12, and the top of the observation plate 13 abuts against the top of the detection chamber 12 and is glued and fixed, thereby sealing the window and forming an observation window 11.

[0034] The storage unit includes a solution bottle 2, a connecting tube 3, and a sealed end 5. The solution bottle 2 includes a bottom 21 on the left and a body 22 on the right. The bottom 21 is a frustum-shaped structure with a diameter smaller at the left end than at the right end, and it is made of a rigid material. The left end of the bottom 21 is fixed to the right side wall of the outer casing 1, connecting the solution bottle 2 to the outer casing 1. The body 22 is made of soft medical plastic. The left end of the connecting tube 3 is inserted into the detection chamber 12 and is in contact with the right end of the siphon layer 14. The right end passes through the bottom 21 and extends to a position opposite to the body 22, so that the bottom 21 is fitted over the left side of the connecting tube 3, acting as a protective sleeve for the connecting tube 3.

[0035] Combination Figure 4 As shown, the sealing end 5 is located on the right side of the connecting pipe 3, and a connection part 4 that can be damaged is provided between the sealing end 5 and the connecting pipe 3. Specifically, in this embodiment, the connecting pipe 3, the connection part 4 and the sealing end 5 are all made of hard plastic, and the outer diameter and wall thickness of the connection part 4 are smaller than the outer diameter and wall thickness of the connecting pipe 3, so that the connection part 4 can be broken when subjected to force, thereby exposing the end of the connecting pipe 3 and communicating with the solution bottle 2.

[0036] The right end of the bottle body 22 is provided with an opening and a sealing plug 23. The sealing plug 23 engages with the opening and seals it. In actual implementation, the sealing plug 23 can also be threaded to the opening for a more stable connection. In this embodiment, the detection chamber 12 is also kept under negative pressure. Specifically, the air pressure is determined according to the size of the detection chamber 12, the siphon layer 14, and the connecting tube 3, ensuring that when the connecting part 4 is damaged and the connecting tube 3 is connected to the solution bottle 2, the sample extract liquid drawn into the detection chamber 12 through the connecting tube 3 can wet the siphon layer 14.

[0037] The specific implementation process is as follows:

[0038] During testing, open the sealing plug 23, place the sampled swab into the sample extraction solution, and squeeze the bottle body 22 to squeeze and rub the swab to ensure that the sample on the swab is fully dissolved in the sample extraction solution. Then, reinstall the sealing plug 23 and reseal the opening. Next, keep the solution bottle 2 vertical with the bottom 21 lower than the bottle body 22, and break the connecting part 4 to damage it. At this time, the connecting tube 3 is connected to the solution bottle 2. Under the negative pressure in the detection chamber 12, the sample extraction solution is quickly drawn into the detection chamber 12 and comes into contact with the siphon layer 14. As the sample extraction solution in the detection chamber 12 is drawn into the siphon layer 14, the sample extraction solution in the solution bottle 2 is continuously drawn into the detection chamber 12 through the connecting tube 3. Since the test strip 15 is in contact with the siphon layer 14, the sample extraction solution enters the test strip 15 simultaneously.

[0039] Once the testing time is reached, the user can observe the colored area on the test strip 15 through the observation window 11. By combining the color development result with the reference card of the test strip 15, the user can quickly determine whether an infection has occurred. After the test is completed, with the opening of the solution bottle 2 sealed, the sample extract in the test chamber 12 and the solution bottle 2 will not leak to the outside. Therefore, it is not necessary to separately seal the test strip 15 and the solution bottle 2, and there will be no leakage of the sample extract mixed with the sample. Thus, there is no risk of cross-infection, making it safer to use.

[0040] Example 2

[0041] Based on Example 1, such as Figure 5 and Figure 6As shown, in this embodiment, the connecting tube 3 is L-shaped, and when the entire device is placed flat on a plane, the lower part of the connecting tube 3 extends to the lower part of the bottle body 22. Therefore, after breaking the connecting part 4, it is not necessary to manually keep the solution bottle 2 vertical to ensure that one end of the connecting tube 3 is immersed in the sample extraction solution, so that the sample extraction solution is continuously drawn into the detection chamber 12, making the operation simpler. In actual implementation, the outer diameter of the bottle body 22 can also be greater than the thickness of the outer shell 1, so that when the outer shell 1 is horizontal, the bottom of the bottle body 22 is lower than the bottom of the outer shell 1. Therefore, when the outer shell 1 and the solution bottle 2 are placed flat on a plane, since the siphon layer 14, the test strip 15 and the observation window 11 need to be installed, the outer shell 1 needs to maintain a relatively large size, which results in the total weight of the test strip unit being greater than the total weight of the solution bottle 2, the sealing plug 23 and the sample extraction solution. Therefore, after being placed flat, the solution bottle 2 is kept in a tilted state with the right end higher than the left end, so that the sample extraction solution gathers on the left side of the bottle body 22, ensuring that a small amount of sample extraction solution is enough to submerge the lower end of the connecting tube 3. Apart from the above, all other operations in this embodiment are the same as in Embodiment 1, and will not be described again in this embodiment.

[0042] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A rapid respiratory infection detection device, comprising a test strip unit and a storage unit, wherein the test strip unit has a housing and a test strip, the housing has a detection chamber, the test strip is located within the detection chamber, and the housing has an observation window facing the color development area of ​​the test strip; the storage unit comprises a solution bottle, the solution bottle having a sealable opening, characterized in that: The storage unit also includes a connecting tube and a sealed end. One end of the connecting tube is connected to the detection chamber and the other end extends into the solution bottle. The sealed end is located at the end of the connecting tube away from the detection chamber and has a damaged connection between it and the connecting tube.

2. The rapid detection device for respiratory infections according to claim 1, characterized in that: The connecting tube is covered with a protective sleeve, and the two ends of the protective sleeve are fixed to the outer shell and the solution bottle, respectively.

3. The rapid detection device for respiratory tract infection according to claim 2, characterized in that: The protective sleeve is a frustum-shaped structure with an inner diameter greater than that of the end near the solution bottle, and it is made of rigid material.

4. The rapid detection device for respiratory tract infection according to claim 1, characterized in that: The detection chamber is under negative pressure.

5. The rapid detection device for respiratory infections according to claim 1, characterized in that: The solution bottle consists of a body and a bottom. The body is made of a flexible material, and the connecting part is opposite to the body.

6. The rapid detection device for respiratory tract infection according to claim 5, characterized in that: The connecting tube is L-shaped, with the end of the connecting tube furthest from the detection chamber located inside the bottle and tilted downwards.

7. A rapid respiratory infection detection device according to claim 6, characterized in that: The detection chamber is equipped with a siphon layer, which is located below and in contact with the test paper. The end of the connecting tube away from the solution bottle is in contact with the siphon layer.

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