ATP fluorescence detection swab

Abstract

The ATP fluorescence detection swab comprises a liquid pushing mechanism, the liquid pushing mechanism comprises a tube seat and a liquid pushing device detachably connected with the tube seat, and the liquid pushing device moves in the axial direction of the tube seat; the medicine bag assembly is arranged in the tube base and below the liquid pusher, the medicine bag assembly comprises a medicine bin, a sealing film is arranged at the bottom of the medicine bin, and a sealing plug is arranged on the upper portion of the medicine bin; the reaction tube is connected to the lower part of the tube seat; the needle type hollow cotton swab is located in the reaction tube, and the top of the needle type hollow cotton swab is inserted into the tube base to pierce the sealing film. According to the ATP fluorescence detection swab, the medicine bag assembly is used for storing reaction liquid, the medicine bag assembly is arranged in the liquid pushing mechanism, the liquid pushing device is used for pushing the medicine bag assembly to add liquid, and the ATP fluorescence detection swab is good in sealing performance, safe and convenient to use.

Description

Technical Field

[0001] This utility model relates to microbial detection equipment, and in particular to an ATP fluorescent detection swab. Background Technology

[0002] ATP, as a direct energy donor in biological metabolism, is ubiquitous in various cellular organisms and maintains a relatively stable concentration level. Based on this biological characteristic, the quantitative detection of cellular ATP concentration can indirectly assess the residual status of microbial contamination, and the ATP fluorescence detection technology developed from this has become an important tool in modern health monitoring.

[0003] The widely used ATP biofluorescence detection system consists of a portable detector and a matching swab. This technology, with its rapid and sensitive characteristics, has been applied in numerous industries worldwide, including food processing, medical and catering, and supermarket retail, for scenarios such as verifying environmental surface cleanliness, monitoring water quality, and checking critical control points in HACCP systems. However, current swab devices mostly use break-through or puncture methods to release the reaction reagent, which suffers from poor sealing of the reaction solution. Utility Model Content

[0004] To address the shortcomings of existing breakable ATP fluorescence detection swabs in terms of poor reaction solution sealing, this invention proposes an ATP fluorescence detection swab that uses a drug capsule assembly for reaction solution storage and a dispensing mechanism for dispensing. This design offers good sealing, safety, and convenience. The solution is as follows:

[0005] An ATP fluorescence detection swab includes: a dispensing mechanism comprising a tube seat and a dispensing device detachably connected to the tube seat, the dispensing device moving axially along the tube seat; a drug capsule assembly disposed within the tube seat and below the dispensing device, the drug capsule assembly including a drug chamber, a sealing membrane disposed at the bottom of the drug chamber, and a sealing plug disposed at the top of the drug chamber; a reaction tube connected to the lower part of the tube seat; and a needle-type hollow cotton swab located within the reaction tube, the top of which is inserted into the tube seat to puncture the sealing membrane.

[0006] Furthermore, the tube seat is columnar, with a storage chamber at the top for placing the drug capsule assembly, and a groove at the bottom for inserting a needle-type hollow cotton swab and an annular groove for connecting the reaction tube, arranged sequentially from the inside to the outside; the groove communicates with the storage chamber; the storage chamber is also provided with a first connecting part for connecting the liquid pusher.

[0007] Furthermore, the liquid pusher is threadedly connected to the tube seat. The liquid pusher includes, in sequence, an integrally connected rotating operating part, a second connecting part, and a push rod. The second connecting part is provided with an external thread that mates with the internal thread of the first connecting part.

[0008] Furthermore, the needle-type hollow cotton swab sequentially includes a piercing needle, a hollow tube, and a cotton ball, with the piercing needle and the hollow tube integrally connected, and the cotton ball wrapped around the bottom end of the hollow tube; the piercing needle includes an integrally connected conical tip and a filter section, with the filter section having several liquid permeation grooves opened radially, and the maximum diameter of the filter section being the same as the diameter of the hollow tube; the depth of the grooves is greater than the length of the piercing needle; the grooves are fitted seamlessly with the hollow tube.

[0009] Furthermore, an observation window is provided on the side wall of the tube seat; the medicine container is made of transparent material so that the medicine container can be observed through the observation window.

[0010] Furthermore, the needle-type hollow cotton swab sequentially includes a piercing needle, a hollow tube, and a cotton ball, with the piercing needle and the hollow tube integrally connected, and the cotton ball wrapped around the bottom end of the hollow tube; the piercing needle includes an integrally connected conical tip and a filter section, with the filter section having several liquid permeation slots opened radially, and the maximum diameter of the filter section being the same as the diameter of the hollow tube.

[0011] Furthermore, the reaction tube and the tube seat are fitted together; the reaction tube is a transparent round tube with one end open and the other end closed in a hemispherical shape.

[0012] Furthermore, the tube seat, liquid injector, needle-type hollow cotton swab, and reaction tube are coaxially arranged.

[0013] Furthermore, the sealing film is an aluminum film, which is fixedly connected to the bottom of the medicine container.

[0014] Furthermore, the sealing plug is fitted with the medicine container in a transitional manner; the sealing plug is a rubber plug.

[0015] Compared with the prior art, the advantages of this utility model are as follows:

[0016] This invention employs a drug capsule assembly to independently store the reaction solution and uses separate packaging to isolate it from other components, ensuring the sealing and transportation safety of the reaction solution. In use, the drug capsule assembly is inserted into the liquid-adding mechanism, and the liquid is added by pushing the drug capsule assembly with a liquid-adding device, which is convenient and quick.

[0017] This embodiment of the invention uses a conical tip of a needle-type hollow cotton swab with a liquid-permeable groove, which improves the flowability of the reaction solution and facilitates the addition of the reaction solution. Attached Figure Description

[0018] Figure 1 This is a schematic cross-sectional view of the ATP fluorescence detection swab structure according to an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of the ATP fluorescence detection swab structure according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic cross-sectional view of the liquid-pushing mechanism structure according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the tube seat structure according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic cross-sectional view of the tube seat structure according to an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the liquid pusher structure according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic cross-sectional view of the drug capsule assembly structure according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic cross-sectional view of the structure of the liquid-pushing mechanism after the drug capsule assembly is installed in an embodiment of this utility model;

[0026] Figure 9 This is a schematic diagram of the structure of the needle-type hollow cotton swab according to an embodiment of the present utility model;

[0027] Figure 10 This is a top view schematic diagram of a needle-type hollow cotton swab according to an embodiment of this utility model.

[0028] In the above figures: 1. Tube seat; 11. Storage chamber; 12. Groove; 13. Annular groove; 14. First connecting part; 15. Observation window; 2. Drug capsule assembly; 21. Drug chamber; 22. Sealing membrane; 23. Sealing plug; 3. Liquid pusher; 31. Rotary operating part; 32. Second connecting part; 33. Push rod; 4. Reaction tube; 5. Needle-type hollow cotton swab; 51. Puncture needle; 511. Conical tip; 512. Filter part; 513. Liquid permeation groove; 52. Hollow tube; 53. Cotton ball. Detailed Implementation

[0029] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0030] like Figure 1 , 2As shown, this utility model proposes an ATP fluorescence detection swab, including a dispensing mechanism, a drug capsule assembly 2, a reaction tube 4, and a needle-type hollow swab 5. The dispensing mechanism includes a tube seat 1 and a dispensing device 3 detachably connected to the tube seat 1, the dispensing device 3 moving axially up and down along the inner wall of the tube seat 1. The drug capsule assembly 2 is placed inside the tube seat 1, below the dispensing device 3. The drug capsule assembly 2 includes a drug reservoir 21, with a sealing membrane 22 at the bottom and a sealing plug 23 at the top. The reaction tube 4 is connected to the lower part of the tube seat 1. The needle-type hollow swab 5 is located inside the reaction tube 4, its top inserted into the tube seat 1 to puncture the sealing membrane 22.

[0031] Furthermore, the tube seat 1, the liquid pusher 3, the needle-type hollow cotton swab 5, and the reaction tube 4 are coaxially arranged, that is, their axes coincide.

[0032] like Figure 3 As shown, the liquid pushing mechanism includes a tube seat 1 and a liquid pusher 3, which are connected by threads. For example, rotating the pusher clockwise will cause it to move into the tube seat 1, while rotating the pusher counterclockwise will cause it to disengage from the tube seat 1.

[0033] Specifically, such as Figure 4 , 5 As shown, the tube seat 1 is cylindrical. The upper part of the tube seat 1 has a storage chamber 11 for holding the drug capsule assembly 2, and the lower part, from the inside out, has a slot 12 for inserting a needle-type hollow cotton swab 5 and an annular groove 13 for connecting the reaction tube 4. The slot 12 communicates with the storage chamber. The inner wall of the storage chamber 11 also has a first connecting part 14 for connecting the liquid injector 3, and the first connecting part 14 has external threads.

[0034] Furthermore, for ease of observation, an observation window 15 is provided on the side wall of the tube base 1. In this embodiment, four observation windows 15 are selected and evenly distributed radially. Of course, other numbers and arrangements are also possible and are not limited here. Correspondingly, the medicine chamber 21 is made of transparent material to facilitate observation of the interior of the medicine chamber 21 through the observation windows 15.

[0035] Specifically, such as Figure 6 As shown, the liquid pusher 3 includes, from left to right, an integrally connected rotating operating part 31, a second connecting part 32, and a push rod 33. The second connecting part 32 is provided with an external thread that mates with the internal thread of the first connecting part 14 (not shown in the figure).

[0036] The rotating operation unit 31 is designed for convenient handheld operation. In this embodiment, a cylindrical structure with a T-shaped cross-section is selected as an example. Of course, other existing structures that facilitate handheld rotating operation can also be used, and there is no limitation here.

[0037] To facilitate the downward pushing of liquid, the diameter of the push rod 33 is smaller than or slightly smaller than the diameter of the sealing plug 23. In this embodiment, the push rod 33 is a cylindrical rod.

[0038] like Figure 1 , 2 As shown in Figure 7, the drug capsule assembly 2 includes a drug chamber 21. The bottom of the drug chamber 21 is sealed by a sealing membrane 22, and the upper part of the drug chamber 21 is sealed by a sealing plug 23 that fits into the inner wall of the drug chamber 21. This modular design allows the drug capsule assembly 2 to be stored separately for easy transportation. Furthermore, when the ATP fluorescence detection swab needs to be refilled with reaction solution, only the drug capsule assembly 2 needs to be replaced.

[0039] In this embodiment, the sealing film 22 is made of aluminum film and is sealed to the bottom of the medicine container 21 by heat pressing. Of course, the sealing film 22 can also be made of plastic or other suitable films. In this embodiment, the sealing plug 23 is made of rubber, but the sealing plug 23 can also be made of silicone or other materials.

[0040] During installation, insert the capsule assembly 2 into the tube seat 1 and push it to the designated position inside the tube seat 1 using the pusher 3. At this time, the sealing plug 23 is held in place by the push rod 33 (see reference). Figure 8 The sealing film 22 is held in place by the top of the needle-type hollow cotton swab 5.

[0041] like Figure 9 , 10 As shown, the needle-type hollow cotton swab 5 sequentially includes a piercing needle 51, a hollow tube 52, and a cotton ball 53. The piercing needle 51 and the hollow tube 52 are integrally connected, and the cotton ball 53 is wrapped around the bottom end of the hollow tube 52. The piercing needle 51 includes an integrally connected conical tip 511 and a filter section 512. The filter section 512 has several liquid permeation slots 513 radially opened. The conical tip 511 facilitates piercing the sealing membrane 22, and the liquid permeation slots 513 are used to allow the reaction liquid to smoothly enter the hollow tube 52. The maximum diameter of the filter section 512 is the same as the diameter of the hollow tube 52.

[0042] In this embodiment, four liquid permeation ports 513 are selected and are evenly distributed radially, but other numbers are also possible.

[0043] During installation, the needle-type hollow cotton swab 5 is fitted into the slot 12 of the tube seat 1, and the piercing needle 51 of the needle-type hollow cotton swab 5 extends slightly into the storage chamber 11.

[0044] like Figure 1 , 2 As shown, reaction tube 4 and tube seat 1 are fitted together. Reaction tube 4 is a transparent circular tube with one end open and the other end closed in a hemispherical shape.

[0045] Before use, the drug capsule assembly 2 is stored separately, while the liquid pusher 3, tube seat 1, reaction tube 4, and needle-type hollow cotton swab 5 are assembled together.

[0046] The working process of the ATP fluorescence detection swab of this invention is as follows:

[0047] First, assemble the drug capsule assembly 2. During assembly, inject an appropriate amount of reaction liquid into the drug chamber 21 with the sealing membrane 22 and seal it with the sealing plug 23. The reaction liquid is used to submerge the cotton ball 53 to be tested in the subsequent transparent reaction tube 4.

[0048] Rotate to remove reaction tube 4, hold the rotating operation part 31 of the liquid pusher 3, use the cotton ball 53 of the needle hollow cotton swab 5 to wipe the object to be tested or dip it into the liquid to be tested, and then install the transparent reaction tube 4 back into the liquid pusher 3 mechanism.

[0049] Rotate counterclockwise to disassemble the pusher 3, insert the sealed drug capsule assembly 2 containing the reaction liquid into the tube seat 1, reinstall the pusher 3, and rotate the pusher 3 clockwise to press against the sealing plug 23 of the drug capsule assembly 2.

[0050] Continue rotating the liquid pusher 3 clockwise until the piercing needle 51 of the needle-type hollow cotton swab 5 pierces the sealing membrane 22 of the drug capsule assembly 2. The reaction liquid flows from the liquid permeation groove 513 of the piercing needle 51 along the needle-type hollow cotton swab 5 into the transparent reaction tube 4 until it submerges the cotton ball 53 to be tested, thus realizing the detection.

[0051] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An ATP fluorescent detection swab, characterized in that, include: The liquid pushing mechanism includes a tube seat (1) and a liquid pusher (3) detachably connected to the tube seat (1), the liquid pusher (3) moving axially along the tube seat (1); The drug capsule assembly (2) is placed inside the tube seat (1) and below the liquid pusher (3). The drug capsule assembly (2) includes a drug chamber (21), a sealing membrane (22) is provided at the bottom of the drug chamber (21), and a sealing plug (23) is provided at the top of the drug chamber (21). The reaction tube (4) is connected to the lower part of the tube seat (1); A needle-type hollow cotton swab (5) is placed inside the reaction tube (4) and inserted into the tube seat (1) at the top to puncture the sealing membrane (22).

2. The ATP fluorescence detection swab according to claim 1, characterized in that, The tube seat (1) is columnar, with a storage chamber (11) for placing the drug capsule assembly (2) at the top and a slot (12) for inserting a needle-type hollow cotton swab (5) and an annular groove (13) for connecting the reaction tube (4) arranged sequentially from the inside to the outside at the bottom; the slot (12) is connected to the storage chamber (11); the storage chamber (11) is also provided with a first connecting part (14) for connecting the liquid pusher (3).

3. The ATP fluorescence detection swab according to claim 2, characterized in that, The liquid pusher (3) is threadedly connected to the tube seat (1). The liquid pusher (3) includes a rotating operating part (31), a second connecting part (32), and a push rod (33) that are integrally connected. The second connecting part (32) is provided with an external thread that matches the internal thread of the first connecting part (14).

4. The ATP fluorescence detection swab of claim 2, wherein, The needle-type hollow cotton swab (5) includes a piercing needle (51), a hollow tube (52), and a cotton ball (53) in sequence. The piercing needle (51) and the hollow tube (52) are integrally connected, and the cotton ball (53) is wrapped around the bottom end of the hollow tube (52). The piercing needle (51) includes an integrally connected conical tip (511) and a filter part (512). The filter part (512) has several liquid permeation slots (513) opened radially. The maximum diameter of the filter part (512) is the same as the diameter of the hollow tube (52). The depth of the slot (12) is greater than the length of the piercing needle (51); the slot (12) is fitted with the hollow tube (52).

5. The ATP fluorescence detection swab of claim 1, wherein, The tube base (1) has an observation window (15) on its side wall; the medicine container (21) is made of transparent material so that the medicine container (21) can be observed through the observation window (15).

6. The ATP fluorescence detection swab of claim 1, wherein, The needle-type hollow cotton swab (5) includes a piercing needle (51), a hollow tube (52), and a cotton ball (53) in sequence. The piercing needle (51) and the hollow tube (52) are integrally connected, and the cotton ball (53) is wrapped around the bottom end of the hollow tube (52). The piercing needle (51) includes an integrally connected conical tip (511) and a filter part (512). The filter part (512) has several liquid permeation slots (513) opened radially. The maximum diameter of the filter part (512) is the same as the diameter of the hollow tube (52).

7. The ATP fluorescence detection swab of claim 1, wherein, The reaction tube (4) is fitted with the tube seat (1) in a transitional manner; the reaction tube (4) is a transparent round tube with one end open and the other end closed in a hemispherical shape.

8. The ATP fluorescence detection swab of claim 1, wherein, The tube seat (1), the liquid pusher (3), the needle-type hollow cotton swab (5) and the reaction tube (4) are arranged coaxially.

9. The ATP fluorescence detection swab of claim 1, wherein, The sealing film (22) is an aluminum film, which is fixedly connected to the bottom of the cartridge (21).

10. The ATP fluorescence detection swab of claim 1, wherein, The sealing plug (23) is in transition fit with the cartridge (21), and is a rubber plug.

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