An engineered bacterial strain activity detection device

Abstract

The utility model discloses an engineering bacterial strain activity detection equipment, including detection host computer and setting at the display seat of detection host computer top, the detection host computer center place right side inside front and back is provided with two concave detection window, and concave detection window is located the right side of display seat, the concave detection window bottom center is provided with ATP detection insert bushing, through the novel shading interference -free device of equipment top outer wall addition, its cuboid sunshade can lift, rotate, and the detection swab that has the engineering bacterial strain dipped is inserted ATP detection test tube, and when the test tube is inserted the ATP detection insert bushing detection of concave detection window, the sunshade covers the concave detection window and goes down, can effectively block outside light interference, create stable lightless environment for detection, improve result accuracy, in addition, the sunshade bottom sealing gasket is pasted detection host computer top, forms the sealed space, prevents dust, impurity and enters, avoids the pollution detection insert bushing and test tube, reduces outside interference, promotes detection accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of microbial detection technology, specifically relating to an engineered bacterial strain activity detection device. Background Technology

[0002] In many important fields such as modern life sciences, medicine, food, and environmental monitoring, the demand for accurate detection of engineered bacterial strain activity is growing. In life science research, a deep understanding of engineered bacterial strain activity helps to explore the growth patterns, metabolic mechanisms, and interactions with the host of microorganisms, providing crucial information for the development of new drugs, vaccines, and biological agents. In the medical field, accurate detection of engineered bacterial strain activity plays an irreplaceable role in disease diagnosis, treatment planning, and prognosis assessment. For example, in the treatment of infectious diseases, detecting the activity of pathogens can determine the efficacy of drugs, adjust treatment strategies in a timely manner, and improve the cure rate. In the food industry, the detection of engineered bacterial strain activity is a key link in ensuring food safety, effectively preventing foodborne diseases and protecting consumer health. Similarly, in environmental monitoring, the detection of bacterial activity helps to assess environmental quality, ecological balance, and pollution levels.

[0003] With the continuous advancement of technology, ATP detection technology has gradually become the core method for detecting the activity of engineered bacterial strains due to its significant advantages such as speed, sensitivity, and high specificity. As the "energy currency" for energy metabolism in all living cells, the content of ATP is closely related to the activity state of bacteria. ATP detection technology based on the luciferin-luciferase reaction system can quantify the content of ATP by accurately measuring the intensity of the fluorescence signal, thereby inferring the activity of engineered bacterial strains. This method has extremely high sensitivity and can detect extremely low concentrations of ATP, greatly improving the accuracy and reliability of detection.

[0004] However, despite the many advantages of ATP detection technology, it still faces some challenges in practical applications. Since this detection method relies on the accurate measurement of fluorescence signals, interference from external light can seriously affect the accuracy of the fluorescence signals, leading to deviations in the detection results. In addition, during the detection process, dust, impurities and other contaminants can easily enter the detection area, which may not only react chemically with the sample and interfere with the detection signal, but may also damage the detection equipment, reducing its lifespan and detection accuracy. Utility Model Content

[0005] The purpose of this invention is to provide an engineered bacterial strain activity detection device to solve the problems mentioned in the background art. In the process of detecting the activity of engineered bacterial strains, the ATP detection technology mainly relies on the accurate measurement of fluorescence signals. However, external light interference can affect the accuracy of fluorescence signals and lead to deviations in detection results. During the detection process, dust, impurities and other contaminants can easily enter the detection area, which may not only react chemically with the sample to interfere with the detection signal, but also damage the detection equipment, reduce the service life of the equipment and the detection accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an engineered bacterial strain activity detection device, comprising a detection host and a display base disposed on the top of the detection host. Two concave detection windows are arranged front to back on the right side of the center of the detection host, and the concave detection windows are located on the right side of the display base. An ATP detection sleeve is disposed at the center of the bottom end of each concave detection window, and an ATP detection test tube is inserted into the ATP detection sleeve. A detection window sealing cover is also disposed inside the top opening of the concave detection window. The detection window sealing cover is fixed inside the concave detection window by a rotating shaft. The detection window sealing cover can be rotated clockwise and counterclockwise by the rotating shaft. After the ATP detection test tube is pulled out from the ATP detection sleeve, the detection window sealing cover can be rotated to a horizontal state by the rotating shaft and completely seal the top opening of the concave detection window. A light-shielding and interference-preventing device is disposed on the outer wall of the top of the detection host near the right rear corner.

[0007] Preferably, the light-shielding and interference-free device includes a sealing gasket, a cuboid light shield, an operating handle, a prism bracket, and a rectangular lifting and rotating sleeve. The prism bracket is vertically fixed to the outer wall of the top of the detection host near the right rear corner, and the prism bracket is flush with the outer wall of the rear end of the detection host. A rectangular lifting and rotating sleeve is fitted onto the outside of the prism bracket. A cuboid light shield is fixed to the left end of the rectangular lifting and rotating sleeve. The bottom end of the cuboid light shield is open. A sealing gasket is pasted and fixed to the outer wall of the bottom end of the cuboid light shield, and the sealing gasket can completely fit against the outer wall of the top of the detection host. An operating handle is provided on the outer wall of the top of the cuboid light shield. The cuboid light shield can completely protect the top of the multiple concave detection windows.

[0008] Preferably, the prism bracket has a rectangular cross-sectional shape, the lateral length of the prism bracket is less than the longitudinal width, the rectangular lifting and rotating sleeve can move up and down outside the prism bracket, and the rectangular lifting and rotating sleeve cannot rotate outside the prism bracket.

[0009] Preferably, the light-shielding and interference-free device further includes an anti-detachment block and a metal rod. A metal rod is fixed at the center of the top of the prism bracket, and an anti-detachment block is fixed at the top of the metal rod. The diameter of the anti-detachment block is greater than the lateral length of the prism bracket, and the length of the metal rod is greater than the thickness of the rectangular lifting and rotating sleeve.

[0010] Preferably, after the rectangular lifting and rotating sleeve moves upward to the outside of the metal rod, the rectangular lifting and rotating sleeve can rotate clockwise and counterclockwise outside the metal rod. When the cuboid light shield drives the rectangular lifting and rotating sleeve to rotate to the forward vertical extension state, the rectangular lifting and rotating sleeve can slide down and fit onto the outside of the prism bracket. When the cuboid light shield rotates to the left or right horizontal extension state, the rectangular lifting and rotating sleeve can be blocked at the top of the prism bracket.

[0011] Preferably, the detection host is provided with mounting feet at all four corners of the bottom, and multiple heat dissipation holes are provided at equal intervals inside the front and rear ends of the detection host, and the edges of the detection host are all treated with arc surface passivation.

[0012] Preferably, the outer wall of the top of the display stand is sloped, and a display screen is provided inside the rear side of the center of the top of the display stand, while multiple control buttons are provided on the front side of the center of the top of the display stand.

[0013] Preferably, a sealing plug is inserted into the opening at the top of the ATP test tube, the sealing plug and the ATP test tube are press-fitted, the sealing plug is made of medical grade elastic soft rubber, and a shrinkage fixing hole is provided inside the center of the sealing plug.

[0014] Preferably, a swab rod is inserted into the shrinkage fixing hole, the swab rod is set vertically downward and inserted into the inside of the ATP test tube, and a bacterial detection swab head is provided on the outside of the bottom end of the swab rod.

[0015] Compared with the prior art, this utility model provides an engineered bacterial strain activity detection device, which has the following beneficial effects:

[0016] This invention adds a novel light-shielding and interference-preventing device to the outer wall of the top of an engineered bacterial strain activity detection device. The rectangular light-shielding cover of this device is designed to be height-adjustable and rotatable. After an appropriate amount of engineered bacterial strain is extracted from the bacterial detection swab head and inserted into the ATP detection tube, the ATP detection tube needs to be inserted into the ATP detection sleeve inside the concave detection window for detection. At this time, the rectangular light-shielding cover can be lowered to completely cover the outside of the concave detection window, effectively blocking external light interference and creating a relatively stable, light-free environment for ATP detection. This is because, during the engineered bacterial strain activity detection process… Light can affect test results. For example, the degree to which certain chemical reactions proceed may differ under different lighting conditions. The presence of a light shield ensures stable lighting conditions in the testing environment, making the test results more accurate and reliable. Furthermore, the design of the sealing gasket at the bottom of the rectangular light shield plays an important role in preventing external interference. The sealing gasket can completely fit against the outer wall of the top of the testing host, forming a relatively sealed space that prevents external dust, impurities, etc., from entering the concave testing window and contaminating the ATP testing socket and ATP testing tube. This ensures that the testing process is not affected by external impurities and improves the accuracy of the test. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural diagram of an engineered bacterial strain activity detection device according to the present invention.

[0018] Figure 2 This is a top view schematic diagram of the structure of an engineered bacterial strain activity detection device according to the present invention.

[0019] Figure 3 This is a front view schematic diagram of an engineered bacterial strain activity detection device according to the present invention.

[0020] Figure 4 This is a three-dimensional disassembled structural diagram of the ATP detection test tube and its internal components according to the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the light-shielding and interference-free device of this utility model in its unused state.

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the light-shielding and interference-free device of this utility model in its unused state.

[0023] Figure 7 This is a three-dimensional structural diagram of the light-shielding and interference-free device of this utility model in use.

[0024] In the diagram: 1. Mounting feet; 2. Detection unit; 3. Heat dissipation vents; 4. Display base; 5. Control buttons; 6. Display screen; 7. Light-shielding and interference-preventing device; 8. Recessed detection window; 9. ATP detection sleeve; 10. Detection window sealing cover; 11. ATP test tube; 12. Bacterial detection swab head; 13. Swab rod; 14. Sealing plug; 15. Shrinkage fixing hole; 16. Sealing gasket; 17. Rectangular light shield; 18. Operating handle; 19. Prismatic support; 20. Rectangular lifting and rotating sleeve; 21. Anti-detachment block; 22. Metal rod. Detailed Implementation

[0025] 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.

[0026] This utility model provides, for example Figure 1-7The device for detecting the activity of engineered bacterial strains shown includes a detection host 2 and a display base 4 disposed on the top of the detection host 2. Two concave detection windows 8 are arranged front to back inside the right side of the center of the detection host 2, and the concave detection windows 8 are located to the right of the display base 4. An ATP detection sleeve 9 is disposed at the center of the bottom end of the concave detection window 8, and an ATP detection test tube 11 is inserted into the ATP detection sleeve 9. A detection window sealing cover 10 is also disposed inside the top opening of the concave detection window 8. The detection window sealing cover 10 is fixed inside the concave detection window 8 by a rotating shaft. The detection window sealing cover 10 can be rotated by the rotating shaft. After rotating counterclockwise and removing the ATP test tube 11 from the ATP test sleeve 9, the test window sealing cover 10 can be rotated to a horizontal position via the pivot and completely seal the top opening of the concave test window 8. A sealing plug 14 is inserted into the top opening of the ATP test tube 11, and the sealing plug 14 and the ATP test tube 11 are press-fitted. The sealing plug 14 is made of medical-grade elastic soft rubber, and a shrinkage fixing hole 15 is provided inside the center of the sealing plug 14. A swab rod 13 is inserted into the shrinkage fixing hole 15, and the swab rod 13 is set vertically downward and inserted into the ATP test tube. Inside the ATP test tube 11, a bacterial detection swab head 12 is installed on the outer side of the bottom end of the swab rod 13. The detection method of this bacterial strain activity detection equipment follows a rigorous and orderly procedure. First, the operator uses the swab rod 13 with the bacterial detection swab head 12 to extract engineered bacterial strains from the sample to be tested. Since the sealing plug 14 is made of medical-grade elastic soft rubber and has an interference fit with the ATP test tube 11, it can ensure good sealing. The swab rod 13 is inserted into the ATP test tube 11 through the shrinkage fixing hole 15 in the center of the sealing plug 14 to ensure that the bacterial sample is properly sealed. The ATP sample is collected in a test tube. Then, the test window sealing cap 10 at the top of the concave test window 8 is opened, and the ATP test tube 11 containing the bacterial sample is inserted into the ATP test sleeve 9 at the bottom center of the concave test window 8. The test window sealing cap 10 is fixed inside the concave test window 8 by a pivot and can rotate flexibly. After the test tube is inserted, it remains open for test preparation. After the test is completed, the ATP test tube 11 is pulled out and can be rotated to a horizontal position to completely seal the top opening of the concave test window 8, preventing external impurities from entering the test area and also avoiding leakage of any residual test substances inside.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the testing host 2 has four mounting feet 1 at its bottom corners. Multiple heat dissipation holes 3 are equidistantly arranged inside the front and rear ends of the testing host 2. The edges of the testing host 2 are rounded and blunted. The mounting feet 1 provide stable support for the equipment, ensuring its stability during operation. The multiple heat dissipation holes 3 equidistantly arranged inside the front and rear ends of the testing host 2 can promptly dissipate the heat generated during operation, ensuring that the internal electronic components are in a suitable operating temperature environment. The rounded and blunted edges of the testing host 2 effectively prevent operator injury due to collisions during operation, improving the safety of equipment use. The top outer wall of the display base 4 is sloped, and a display screen 6 is located inside the rear side of the top center of the display base 4. Multiple control buttons 5 are located on the front side of the top center of the display base 4. Operators can use the control buttons 5 on the sloped top of the display base 4 to start the testing program and set relevant parameters. The display screen 6 inside the rear side of the top center of the display base 4 is used to display the real-time operating status and testing data of the testing equipment, allowing operators to easily understand the testing progress and take appropriate actions.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the detection host 2 quickly determines the activity and quantity of bacteria by detecting the ATP content within bacterial cells. ATP is a nucleotide used to store and transfer energy in all living cells. Within bacterial cells, ATP participates in numerous metabolic reactions, maintaining normal cellular physiological functions. When bacteria are active, metabolic activities continuously occur within the cell, and ATP is constantly being synthesized and consumed. Therefore, active bacterial cells contain a certain amount of ATP. When using this device for detection, after the ATP detection socket 9 is connected to the ATP detection test tube 11, the internal detection system of the device will utilize fluorescein-fluorescence... The luciferase detection technology utilizes luciferin, which reacts with ATP under the catalysis of luciferase to generate oxidized luciferin and release photons. The detection system in the device can accurately measure the number of photons. Since the amount of photons produced is directly proportional to the ATP content, and the ATP content is related to the activity and quantity of bacteria, the activity of engineered bacterial strains in the sample can be indirectly inferred by detecting and analyzing the number of photons. The detection system converts the measured light signal into an electrical signal, and after a series of data processing and analysis, the detection results of the engineered bacterial strain activity are finally presented on the display screen 6.

[0029] like Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, a light-shielding and interference-avoiding device 7 is installed on the outer wall of the top of the detection host 2 near the right rear corner. The light-shielding and interference-avoiding device 7 includes a sealing gasket 16, a cuboid light shield 17, an operating handle 18, a prism bracket 19, and a rectangular lifting and rotating sleeve 20. The prism bracket 19 is vertically fixed on the outer wall of the top of the detection host 2 near the right rear corner, and the prism bracket 19 is flush with the outer wall of the rear end of the detection host 2. The rectangular lifting and rotating sleeve 20 is sleeved on the outside of the prism bracket 19. The cuboid light shield 17 is fixed to the left end of the rectangular lifting and rotating sleeve 20. The bottom end of the cuboid light shield 17 is open. A sealing gasket 16 is adhered and fixed to the bottom outer wall of the light shield 17, and the sealing gasket 16 can completely fit the top outer wall of the detection host 2. An operating handle 18 is provided on the top outer wall of the cuboid light shield 17. The cuboid light shield 17 can completely protect the top of the multiple concave detection windows 8. The sealing gasket 16 plays a crucial role. It can not only prevent external light from entering the concave detection windows 8 and avoid light interference with the detection process, but also effectively block dust, impurities, etc. from entering the detection area, preventing them from contaminating the ATP detection socket 9 and the ATP detection test tube 11, and ensuring the accuracy of the detection results. The prism bracket 19 has a rectangular cross-section, with its lateral length less than its longitudinal width. The rectangular lifting and rotating sleeve 20 can move up and down outside the prism bracket 19, but it cannot rotate outside the prism bracket 19. The light-shielding and interference-avoiding device 7 also includes an anti-detachment block 21 and a metal rod 22. A metal rod 22 is fixed at the center of the top of the prism bracket 19, and an anti-detachment block 21 is fixed at the top of the metal rod 22. The diameter of the anti-detachment block 21 is greater than the lateral length of the prism bracket 19, and the length of the metal rod 22 is greater than the thickness of the rectangular lifting and rotating sleeve 20. The design of the detachment block 21 and the metal rod 22 further ensures the reliability of the device. The metal rod 22, which is fixed at the center of the top of the prism bracket 19, has a diameter of anti-detachment block 21 at its top that is larger than the lateral length of the prism bracket 19, and the length of the metal rod 22 is greater than the thickness of the rectangular lifting and rotating sleeve 20. This ensures that the rectangular lifting and rotating sleeve 20 is always limited within a reasonable range during the entire lifting and rotating process and will not fall off the prism bracket 19 or the metal rod 22. This ensures that the light-shielding and interference-free device 7 can work continuously and stably, providing a reliable environmental guarantee for the detection of the activity of engineered bacterial strains.

[0030] like Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, after the rectangular lifting and rotating sleeve 20 moves upward to the outside of the metal rod 22, the rectangular lifting and rotating sleeve 20 can rotate clockwise and counterclockwise outside the metal rod 22. When the rectangular light shield 17 drives the rectangular lifting and rotating sleeve 20 to rotate to the forward vertical extension state, the rectangular lifting and rotating sleeve 20 can slide down and fit onto the outside of the prism bracket 19. When the rectangular light shield 17 rotates to the left or right horizontal extension state, the rectangular lifting and rotating sleeve 20 can be blocked at the top of the prism bracket 19. When the equipment is idle or does not need to protect the concave detection window 8 from light, the rectangular light shield 17 is controlled by the operating handle 18 to a position that does not hinder the detection operation. At this time, the rectangular lifting and rotating sleeve 20 is at the top of the prism bracket 19, and the rectangular light shield 17 may be in the left or right horizontal extension state. When it is necessary to shield the concave detection window 8 that is being detected and avoid external interference, the operator holds the operating handle 18 and pulls the rectangular lifting and rotating sleeve upward. 20, allowing it to move upwards along the prism bracket 19 until it detaches from the prism bracket 19 and reaches the outside of the metal rod 22. Since the cross-sectional shape of the prism bracket 19 is rectangular and its lateral length is much smaller than its longitudinal width, this design ensures that the rectangular lifting and rotating sleeve 20 can only move up and down outside the prism bracket 19 and cannot rotate, ensuring the stability of the structure and the accuracy of the operation. After reaching the outside of the metal rod 22, the operator can drive the rectangular lifting and rotating sleeve 20 to rotate clockwise and counterclockwise outside the metal rod 22 through the operating handle 18. When it rotates to the state where the cuboid light shield 17 extends forward vertically, the operating handle 18 is released, and the rectangular lifting and rotating sleeve 20 will slide down and re-fit onto the outside of the prism bracket 19. At this time, the cuboid light shield 17 is completely protecting the outside of the top of the multiple concave detection windows 8. At the same time, the sealing gasket 16 pasted on the outer wall of the bottom opening of the cuboid light shield 17 will completely fit against the outer wall of the top of the detection host 2, forming a relatively sealed space.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An engineered bacterial strain activity detection device, comprising a detection host (2) and a display base (4) disposed on the top of the detection host (2), wherein two concave detection windows (8) are disposed on the front and back of the right side of the center of the detection host (2), and the concave detection windows (8) are located on the right side of the display base (4), and an ATP detection sleeve (9) is disposed at the center of the bottom end of the concave detection window (8), wherein an ATP detection test tube (11) is inserted into the ATP detection sleeve (9), characterized in that: The top opening of the concave detection window (8) is also provided with a detection window sealing cover (10). The detection window sealing cover (10) is fixed inside the concave detection window (8) by a rotating shaft. The detection window sealing cover (10) can be rotated clockwise and counterclockwise by the rotating shaft. After the ATP detection tube (11) is pulled out from the ATP detection sleeve (9), the detection window sealing cover (10) can be rotated to a horizontal state by the rotating shaft and completely seal the top opening of the concave detection window (8). A light-shielding and interference-avoiding device (7) is provided on the outer wall of the top of the detection host (2) near the right rear corner. The light-shielding and interference-free device (7) includes a sealing gasket (16), a cuboid light shield (17), an operating handle (18), a prism bracket (19), and a rectangular lifting and rotating sleeve (20). The prism bracket (19) is vertically fixed to the outer wall of the top of the detection host (2) near the right rear corner, and the prism bracket (19) is flush with the outer wall of the rear end of the detection host (2). The rectangular lifting and rotating sleeve (20) is sleeved on the outside of the prism bracket (19). A cuboid light shield (17) is fixed to the left end of the sleeve (20). The bottom end of the cuboid light shield (17) is open. A sealing gasket (16) is pasted and fixed to the outer wall of the bottom end of the cuboid light shield (17). The sealing gasket (16) can be completely attached to the outer wall of the top of the detection host (2). An operating handle (18) is provided on the outer wall of the top of the cuboid light shield (17). The cuboid light shield (17) can completely protect the top outside of the multiple concave detection windows (8).

2. The engineered bacterial strain activity detection device according to claim 1, characterized in that: The prism bracket (19) has a rectangular cross-section. The lateral length of the prism bracket (19) is less than the longitudinal width. The rectangular lifting and rotating sleeve (20) can move up and down outside the prism bracket (19), but the rectangular lifting and rotating sleeve (20) cannot rotate outside the prism bracket (19).

3. The engineered bacterial strain activity detection device according to claim 2, characterized in that: The light-shielding and interference-free device (7) also includes an anti-detachment block (21) and a metal rod (22). The metal rod (22) is fixed at the center of the top of the prism bracket (19). The anti-detachment block (21) is fixed at the top of the metal rod (22). The diameter of the anti-detachment block (21) is greater than the lateral length of the prism bracket (19). The length of the metal rod (22) is greater than the thickness of the rectangular lifting and rotating sleeve (20).

4. The engineered bacterial strain activity detection device according to claim 3, characterized in that: After the rectangular lifting and rotating sleeve (20) moves upward to the outside of the metal rod (22), the rectangular lifting and rotating sleeve (20) can rotate clockwise and counterclockwise outside the metal rod (22). When the cuboid light shield (17) drives the rectangular lifting and rotating sleeve (20) to rotate to the forward vertical extension state, the rectangular lifting and rotating sleeve (20) can slide down and fit onto the outside of the prism bracket (19). When the cuboid light shield (17) rotates to the left or right horizontal extension state, the rectangular lifting and rotating sleeve (20) can be blocked at the top of the prism bracket (19).

5. The engineered bacterial strain activity detection device according to claim 1, characterized in that: The detection host (2) is provided with mounting feet (1) at the four corners of the bottom. Multiple heat dissipation holes (3) are provided at equal intervals inside the front and rear ends of the detection host (2). The edges of the detection host (2) are all treated with arc surface passivation.

6. The engineered bacterial strain activity detection device according to claim 1, characterized in that: The outer wall of the top of the display stand (4) is set with a slope, and a display screen (6) is set inside the rear side of the top center of the display stand (4). Multiple control buttons (5) are set on the front side of the top center of the display stand (4).

7. The engineered bacterial strain activity detection device according to claim 1, characterized in that: A sealing plug (14) is inserted into the opening at the top of the ATP test tube (11). The sealing plug (14) and the ATP test tube (11) are press-fitted together. The sealing plug (14) is made of medical grade elastic soft rubber. A shrinkage fixing hole (15) is provided inside the center of the sealing plug (14).

8. The engineered bacterial strain activity detection device according to claim 7, characterized in that: A swab rod (13) is inserted into the shrinkage fixing hole (15). The swab rod (13) is set vertically downward and inserted into the ATP test tube (11). A bacterial detection swab head (12) is provided on the outside of the bottom end of the swab rod (13).

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