A drug sensitivity test device

By designing the agar box and bacterial suspension leveling component of the drug susceptibility testing device, the problem of high contamination risk in open operation of the drug susceptibility testing device was solved, achieving uniform spreading of bacterial suspension and accurate positioning of drug susceptibility test strips, thus reducing the risk of contamination and the possibility of incorrect drug use.

CN224299209UActive Publication Date: 2026-05-29XIAMEN BO CHUANG SHENG SHI BIOTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN BO CHUANG SHENG SHI BIOTECHNOLOGY CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing drug susceptibility testing devices are prone to sample contamination or pathogen leakage in open operating environments, especially when handling highly pathogenic microorganisms, and the long bacterial solution application time can easily lead to slide contamination.

Method used

A drug sensitivity testing device was designed, comprising an agar box, a lid, a separator, a silicone brush, and a bacterial solution leveling component. The bacterial solution leveling component reduces the contact area and time between the agar box and air, the silicone brush evenly spreads the bacterial solution, and the placement component ensures the accurate positioning of the drug sensitivity test strips.

Benefits of technology

This effectively reduces the possibility of contamination inside the agar box, decreases the risk of incorrect medication due to contamination, and improves the safety and accuracy of the operation.

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Abstract

The utility model discloses a drug sensitivity determination device, including fixed component, the fixed component includes the agar box of setting, the box cover fixedly engaged in agar box top, inlaying the partition in agar box, the bacteria liquid pushes flat component, the bacteria liquid pushes flat component and includes the connecting rod engaged in the channel, the fixed part fixed in the connecting rod bottom, the silica gel brush fixed in rotating and being connected on the fixed part, the pull rod fixed on the connecting rod, the placing space fixed in agar box one side, the effusion angle opened in the placing space bottom one side, the placing component, the placing component includes the round mouth opened on the box cover, the flap fixedly opened and closed on the box cover, the handle slot opened in the flap edge. The utility model discloses through setting the bacteria liquid spreads flat component, reduces the area and time of agar box inside and air contact, reduces the possibility that agar box and bacteria liquid inside are contaminated, has reduced the loss that caused because of the pollution of bacteria liquid or agar box leads to the error drug use.
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Description

Technical Field

[0001] This utility model relates to the field of microbial detection technology, specifically to a drug susceptibility testing device. Background Technology

[0002] An antimicrobial susceptibility testing device is a specialized instrument used in the field of microbial detection to determine the susceptibility of microorganisms, such as bacteria and fungi, to antimicrobial drugs. Its core function is to analyze the growth inhibition of microorganisms under the action of different antimicrobial drugs through specific technical means, thereby providing a scientific basis for clinical selection of effective treatment drugs.

[0003] Antimicrobial susceptibility testing is needed in many industries. In addition to equipment used in laboratories, there are also portable antimicrobial susceptibility testing products, such as antimicrobial susceptibility testing kits, which can be operated independently. However, the open operating environment can easily lead to sample contamination or leakage of pathogens, especially when handling highly pathogenic microorganisms. When applying the bacterial strain to the slide, the long time the lid is open can cause the inside of the slide to be contaminated by external bacteria. Therefore, there is a need to provide an antimicrobial susceptibility testing device. Utility Model Content

[0004] The purpose of this invention is to provide a drug sensitivity testing device to solve the problems mentioned in the background section. To solve these technical problems, this invention is achieved through the following technical solution:

[0005] This utility model is a drug sensitivity testing device, comprising:

[0006] The fixing component includes an agar box, a box cover that is fixedly engaged with the top of the agar box, a partition plate embedded in the agar box, and channels at the bottom and middle of the partition plate.

[0007] The bacterial liquid leveling component includes a connecting rod that engages within the channel, a fixing member fixed to the bottom of the connecting rod, a silicone brush fixed to the fixing member and rotatedly connected, a hole on one side of the agar box, and a pull rod fixed to the connecting rod.

[0008] Furthermore, the bacterial liquid leveling component also includes an injection port on one end of the box lid and a rubber stopper inserted into the injection port.

[0009] Furthermore, the bacterial liquid leveling component also includes a placement space fixed to one side of the agar box, a liquid accumulation angle opened at the bottom of the placement space, and the main inlet opened on one side of the placement space.

[0010] Furthermore, the bacterial liquid leveling component also includes a first locking block fixed on both sides above the silicone brush, a first locking hole on both sides of the fixing component, and a torsion spring fitted on the first locking block, with the first locking block fitted into the first locking hole.

[0011] Furthermore, it also includes a placement component, which includes a round opening on the lid, a flip cover fixed to the lid, and a handle groove on the edge of the flip cover.

[0012] Furthermore, the placement component also includes a second locking block fixed on both sides of the flip cover and a second locking hole opened on the box cover, the second locking block and the second locking hole fitting together.

[0013] Furthermore, there are several circular openings, located precisely in the middle of every two partition plates.

[0014] This invention has the following beneficial effects: When drug sensitivity testing is required, first remove the rubber stopper of the injection port, then inject the bacterial solution into the injection port. After injection, put the rubber stopper back in. At this time, the pull rod is completely pressed against the hole, and the injection port is at the farthest distance from the round opening. After injecting the bacterial solution, shake it to make the bacterial solution completely contact the bottom end of the silicone brush. Then pull the pull rod, which drives the connecting rod, which drives the fixing part, and the fixing part drives the silicone brush to pass through the channel. The silicone brush spreads the bacterial solution evenly on the bottom surface of the agar box, and then carries the excess bacterial solution into the accumulation corner. Alternatively, the bacterial solution can be evenly spread on the bottom surface of the agar box by rotating the agar box left and right.

[0015] This invention, through the design of a bacterial solution leveling component, reduces the area and time of contact between the inside of the agar box and the air, thereby reducing the possibility of contamination of the bacterial solution and the inside of the agar box, and minimizing losses caused by incorrect medication due to contamination of the bacterial solution or the agar box. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the hole-related structure of this utility model;

[0019] Figure 3 This utility model Figure 1 Schematic diagram of structure A in the middle;

[0020] Figure 4 This is a schematic diagram of the relevant structure of the rubber brush of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 10. Agar box; 11. Box lid; 12. Divider; 13. Channel; 20. Connecting rod; 21. Fixing component; 22. Silicone brush; 221. First locking block; 222. First locking hole; 223. Torsion spring; 23. Hole; 24. Pull rod; 25. Injection port; 26. Rubber stopper; 27. Placement space; 28. Liquid accumulation angle; 30. Round opening; 31. Flip cover; 32. Handle groove; 33. Second locking block; 34. Second locking hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Please see Figure 1-4 As shown, this utility model is a drug sensitivity testing device, comprising:

[0026] The fixing component includes an agar box 10, a box cover 11 fixedly engaged with the top of the agar box 10, a partition plate 12 embedded in the agar box 10, and a channel 13 opened at the bottom and middle of the partition plate 12.

[0027] The bacterial liquid leveling component includes a connecting rod 20 that engages within the channel 13, a fixing member 21 fixed to the bottom of the connecting rod 20, a silicone brush 22 fixed to the fixing member 21, a hole 23 on one side of the agar box 10, and a pull rod 24 fixed to the connecting rod 20.

[0028] The agar box 10 is used to hold the culture medium; the lid 11 snaps on top to form a sealed space to prevent contamination; the dividing plate divides the box into multiple independent areas to allow for simultaneous testing of multiple antibiotics; the channel 13 is located at the bottom and middle of the dividing plate to allow for the flow of bacterial solution and the movement of components; the connecting rod 20 passes through the channel 13 to connect the external pull rod 24 to the internal silicone brush 22, allowing the operator to control the movement of the silicone brush 22 from the outside; the fixing piece 21 connects the silicone brush 22 to make it rotatable, and the pull rod 24 is used to operate the connecting rod 20 to drive the silicone brush 22 to apply bacterial solution to the surface of the culture medium.

[0029] The bacterial liquid leveling component also includes an injection port 25 on one end of the box cover 11 and a rubber stopper 26 inserted into the injection port 25;

[0030] Inlet 25 is used to inject bacterial solution into the box, and rubber stopper 26 seals inlet 25 to prevent contamination.

[0031] The bacterial liquid leveling component also includes a placement space 27 fixed to one side of the agar box 10 and a liquid accumulation angle 28 opened at the bottom side of the placement space 27. The main inlet is opened on one side of the placement space 27.

[0032] The placement space 27 is used to temporarily store bacterial solutions or reagents, and the liquid collection angle 28 collects excess liquid.

[0033] The bacterial liquid leveling component also includes a first locking block 221 fixed on both sides above the silicone brush 22, a first locking hole 222 opened on both sides of the fixing member 21, and a torsion spring 223 fitted on the first locking block 221. The first locking block 221 is fitted into the first locking hole 222.

[0034] The first locking block 221 and the first locking hole 222 can fix the position of the silicone brush 22. The torsion spring 223 can prevent the silicone brush 22 from twisting too much and failing to spread the bacterial liquid evenly.

[0035] Working principle: When drug sensitivity testing is required, first remove the rubber stopper 26 of the injection port 25, then inject the bacterial solution into the injection port 25. After injection, put the rubber stopper 26 back in. At this time, the pull rod 24 is completely pressed against the hole 23, and the injection port 25 is at the farthest distance from the round opening 30. After injecting the bacterial solution, shake it to make the bacterial solution completely contact the bottom end of the silica gel brush 22. Then pull the pull rod 24. The pull rod 24 drives the connecting rod 20, the connecting rod 20 drives the fixing part 21, and the fixing part 21 drives the silica gel brush 22 to pass through the channel 13. The silica gel brush 22 spreads the bacterial solution evenly on the bottom surface of the agar box 10, and then carries the excess bacterial solution into the liquid accumulation corner 28. Alternatively, the bacterial solution can be evenly spread on the bottom surface of the agar box 10 by rotating the agar box 10 left and right.

[0036] This solution, through the addition of a bacterial solution leveling component, reduces the area and time of contact between the inside of the agar box 10 and the air, thereby reducing the possibility of contamination of the bacterial solution and the inside of the agar box 10, and minimizing losses caused by incorrect medication due to contamination of the bacterial solution or the agar box 10.

[0037] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes:

[0038] The placement component includes a round opening 30 on the box cover 11, a flip cover 31 that is fixed to the box cover 11 for opening and closing, and a handle groove 32 on the edge of the flip cover 31.

[0039] The round opening 30 is located on the box cover 11 for placing the drug sensitivity test strips. The flip cover 31 opens and closes to protect the area of ​​the round opening 30. The handle groove 32 makes it easy to open the flip cover 31.

[0040] The placement component also includes a second latch 33 fixed on both sides of the flip cover 31 and a second latch 34 opened on the box cover 11, wherein the second latch 33 and the second latch 34 are fitted together;

[0041] The second locking block 33 and the second locking hole 34 work together to fix the position of the flip cover 31.

[0042] There are several round openings 30, located exactly in the middle of every two partition plates 12;

[0043] The number of round apertures (30) corresponds to the number of antibiotics that can be tested.

[0044] Working principle: After the bacterial solution is evenly coated on the bottom of the agar box 10, the drug sensitivity paper needs to be placed into the agar box 10. Insert your finger into the handle groove 32, rotate the second locking block 33 in the second locking hole 34 to open the flip cover 31, and use tweezers or gloves to vertically insert the drug sensitivity paper into the round opening 30 so that the drug sensitivity paper falls vertically in the middle of the two partition plates 12.

[0045] This solution uses a placement component to center the susceptibility testing strip, allowing for better observation of its sterilization performance and facilitating medication decisions. This avoids errors in medication decisions due to misalignment of the susceptibility testing strip, which could prevent observation of its sterilization status.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drug sensitivity testing device, characterized in that, include: The fixing component includes an agar box (10), a box cover (11) fixedly engaged with the top of the agar box (10), a partition plate (12) embedded in the agar box (10), and a channel (13) opened at the bottom and middle of the partition plate (12). The bacterial liquid leveling component includes a connecting rod (20) that engages in the channel (13), a fixing member (21) fixed to the bottom end of the connecting rod (20), a silicone brush (22) fixed to the fixing member (21) and rotatedly connected to it, a hole (23) on one side of the agar box (10), and a pull rod (24) fixed to the connecting rod (20).

2. The drug susceptibility testing device according to claim 1, characterized in that: The bacterial liquid leveling component also includes an injection port (25) on one end of the box cover (11) and a rubber stopper (26) inserted into the injection port (25).

3. The drug susceptibility testing device according to claim 2, characterized in that: The bacterial liquid leveling component also includes a placement space (27) fixed to one side of the agar box (10), a liquid accumulation angle (28) opened at the bottom side of the placement space (27), and the injection port (25) opened on one side of the placement space (27).

4. The drug susceptibility testing device according to claim 1, characterized in that: The bacterial liquid leveling component also includes a first locking block (221) fixed on both sides above the silicone brush (22), a first locking hole (222) opened on both sides of the fixing member (21), and a torsion spring (223) fitted on the first locking block (221). The first locking block (221) is fitted into the first locking hole (222).

5. The drug susceptibility testing device according to claim 1, characterized in that: It also includes a placement component, which includes a round opening (30) on the box cover (11), a flip cover (31) fixed to the box cover (11) for opening and closing, and a handle groove (32) on the edge of the flip cover (31).

6. The drug susceptibility testing device according to claim 5, characterized in that: The placement component also includes a second locking block (33) fixed on both sides of the flip cover (31) and a second locking hole (34) opened on the box cover (11), the second locking block (33) and the second locking hole (34) fitting together.

7. The drug susceptibility testing device according to claim 5, characterized in that: There are several circular openings (30), located in the exact middle of every two partition plates (12).