ATP sampler

Abstract

The utility model belongs to the field of medical instruments, and discloses an ATP sampler which comprises a first sealing pipe, a second sealing pipe and a third sealing pipe, the first sealing pipe and the second sealing pipe are detachably connected in a sealed mode, and the second sealing pipe and the third sealing pipe are detachably connected in a sealed mode. A sealing disc and a liquid leakage disc are fixedly arranged in the second sealing pipe, the diameter of the sealing disc is smaller than the inner diameter of the second sealing pipe, and a plurality of connecting blocks are fixedly arranged between the outer edge of the sealing disc and the inner wall of the second sealing pipe; a plurality of liquid inlet holes are formed in the liquid leakage disc; a liquid storage cavity is formed in the third sealing pipe, a liquid outlet pipe communicated with the liquid storage cavity is fixedly arranged at the end, facing the second sealing pipe, of the third sealing pipe, and the end, away from the third sealing pipe, of the liquid outlet pipe abuts against the sealing disc in a sealed mode. According to the utility model, the mixed liquid can only flow out manually, so that the problem that the mixed liquid flows out due to external force factors is avoided, and the sensitivity and the stability of the mixed liquid are ensured; the device is used for sampling and detecting medical instruments, water quality or microorganisms and the like.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically an ATP sampler. Background Technology

[0002] ATP samplers are typically used in conjunction with ATP fluorescence detectors for surface hygiene testing of medical devices or hand hygiene testing of healthcare workers. Patent application CN116793750A discloses an ATP fluorescence detection swab, comprising a swab head, a sealing rod, a liquid inlet channel, a sealing shell, and a stirring rod. The swab head has a hollow structure containing a fluorescent mixture; the sealing rod is located inside the swab head, with its top closed and its bottom sealed to the liquid inlet channel; the stirring rod includes a rod body and a rod head, with the rod body sealed to the liquid inlet channel, the rod body being hollow internally, and an outlet hole located near the rod head. The swab head is made of a relatively soft and transparent plastic material, while the sealing rod is made of a relatively brittle plastic material. When using, wipe the surface of the instrument with the tip of the swab and place it inside the sealed housing. Gently break the sealing rod with your fingers, squeeze the swab head, and the fluorescent mixture flows into the hollow rod body along the inlet channel and then flows out from the outlet hole to contact the tip of the swab for a fluorescent reaction. Then, drop the mixture after the reaction into the ATP fluorescence detector for fluorescence measurement to check whether the hygiene of the cleaned medical device surface is up to standard.

[0003] However, the sealing rod in the ATP fluorescence detection swab in the aforementioned patent is thin and brittle, and can be easily broken by hand. During long-distance transportation, the sealing rod is easily broken due to shaking or collision, or it may be broken due to squeezing if stored improperly in the laboratory. In this case, the mixture will flow from the swab head into the sealed shell, which will reduce the sensitivity and stability of the mixture, or even cause it to fail. Utility Model Content

[0004] The present invention aims to provide an ATP sampler to solve the problem in the prior art where the sealing rod is prone to spontaneous breakage, causing leakage of the mixed solution and affecting its sensitivity and stability.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An ATP sampler includes a first sealing tube, a second sealing tube, and a third sealing tube, wherein the first sealing tube and the second sealing tube, and the second sealing tube and the third sealing tube are all sealed and detachable connections.

[0007] The second sealing tube is equipped with a sealing disc and a leakage disc. The diameter of the sealing disc is smaller than the inner diameter of the second sealing tube. Multiple connecting blocks are fixed between the outer edge of the sealing disc and the inner wall of the second sealing tube. The multiple connecting blocks are spaced apart along the circumference of the sealing disc. The leakage disc is equipped with several liquid inlet holes. A sampling rod is fixed on the side of the leakage disc facing the first sealing tube. The length of the sampling rod is adapted to the length of the first sealing tube.

[0008] The third sealing tube has a liquid storage chamber inside. The end of the third sealing tube facing the second sealing tube is fixed with a liquid outlet tube that communicates with the liquid storage chamber. The end of the liquid outlet tube away from the third sealing tube is sealed and abuts against the sealing plate.

[0009] As a limitation of this utility model: a sealing ring is fixed on the sealing disc, and the end of the liquid outlet tube abuts against the sealing ring.

[0010] As a further limitation of this utility model: the sealing ring is made of silicone.

[0011] As another limitation of this utility model: the sealing plate and the draining plate are arranged in parallel, and a support column is fixed between the sealing plate and the draining plate.

[0012] As a further limitation of this utility model: the first sealing tube and the second sealing tube, and the second sealing tube and the third sealing tube are all threaded connections.

[0013] As another limitation of this utility model: the first sealing tube, the second sealing tube, and the third sealing tube are all made of transparent plastic.

[0014] As a further definition of this utility model: the end of the sampling rod near the bottom of the first sealing tube is the head, and the head is made of short nylon fibers.

[0015] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:

[0016] In this invention, the first and second sealing tubes, as well as the second and third sealing tubes, are all detachably and sealed. The second sealing tube contains a sealing plate and a leakage plate. The third sealing tube contains a liquid storage chamber and an outlet pipe communicating with the storage chamber. The outlet pipe is sealed against the sealing plate. This structure ensures that the mixture in the storage chamber will not flow out from the bottom of the outlet pipe. In use, after sampling with the sampling rod, the third sealing tube is disassembled, separating the bottom of the outlet pipe from the sealing plate. The mixture then flows out from the bottom of the outlet pipe, passes through the gaps between multiple connecting blocks and the inlet hole on the leakage plate, and finally flows into the first sealing tube, contacting the head of the sampling rod for a fluorescence reaction. This invention requires manual separation of the second and third sealing tubes to separate the bottom of the outlet pipe from the sealing plate, allowing the mixture to flow out. This solves the problem in existing technologies where the sealing rod is thin and brittle, easily broken by external factors, causing the mixture to leak out.

[0017] In summary, this invention allows the mixture to flow out only manually, avoiding the problem of leakage caused by external forces, thus ensuring the sensitivity and stability of the mixture; it is used for sampling and testing medical devices, water quality, or microorganisms. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0021] Figure 3 This is a partial cross-sectional view of the sealing disc, connecting block, and leakage disc in an embodiment of this utility model;

[0022] Figure 4 This is a cross-sectional view of the liquid outlet pipe, sealing disc, and sealing ring in an embodiment of this utility model;

[0023] Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle.

[0024] In the figure: 1-First sealing tube, 2-Second sealing tube, 3-Third sealing tube, 4-Sealing plate, 5-Leaking plate, 6-Connecting block, 7-Inlet hole, 8-Sampling rod, 9-Liquid storage chamber, 10-Outlet tube, 11-Sealing ring, 111-Groove, 12-Support column, 13-Gap. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and do not constitute a limitation thereof.

[0026] like Figures 1-5 As shown, this embodiment includes a first sealing tube 1, a second sealing tube 2, and a third sealing tube 3. The first sealing tube 1 and the second sealing tube 2, as well as the second sealing tube 2 and the third sealing tube 3, are all detachably sealed. The third sealing tube 3 has a liquid storage chamber 9 inside. Only by manually separating the second sealing tube 2 and the third sealing tube 3 can the mixed liquid in the liquid storage chamber 9 flow out.

[0027] In this embodiment, the first sealing tube 1 and the second sealing tube 2, as well as the second sealing tube 2 and the third sealing tube 3, are all connected by threads. Figure 1-3 The thread is not shown. Rotating the second sealing tube 2 will separate the first sealing tube 1 from the second sealing tube 2, and rotating the third sealing tube 3 will separate the second sealing tube 2 from the third sealing tube 3. Of course, in this embodiment, the first sealing tube 1 and the second sealing tube 2, and the second sealing tube 2 and the third sealing tube 3 can also adopt any other existing detachable connection method, such as pin connection or snap-fit, as long as it is ensured that the second sealing tube 2 and the third sealing tube 3 will not separate due to shaking, collision or squeezing.

[0028] like Figure 2 , 3 As shown, a sealing disc 4 and a leakage disc 5 are fixed inside the second sealing tube 2.

[0029] The sealing disc 4 is located at the upper position. The diameter of the sealing disc 4 is smaller than the inner diameter of the second sealing tube 2. Multiple connecting blocks 6 are fixed between the outer edge of the sealing disc 4 and the inner wall of the second sealing tube 2. The multiple connecting blocks 6 are arranged at intervals along the circumference of the sealing disc 4. A gap 13 is formed between two adjacent connecting blocks 6. In this embodiment, there are six connecting blocks 6. The number can be adjusted according to the inner diameter of the second sealing tube 2, as long as the following is ensured: First, the sealing disc 4 can be fixed inside the second sealing tube 2 to prevent the liquid outlet pipe 10 in the third sealing tube 3 from not having enough restraining force when it comes into contact with the sealing disc 4; Second, there is a gap 13 between two adjacent connecting blocks 6 to ensure that the mixture can flow downward.

[0030] The sealing disc 4 and the leakage disc 5 are arranged in parallel. The leakage disc 5 has several inlet holes 7, the number of which can be adjusted according to the actual application to ensure that the mixture can flow smoothly to the first sealing tube 1. A sampling rod 8 is fixed on the side of the leakage disc 5 facing the first sealing tube 1. The length of the sampling rod 8 is adapted to the length of the first sealing tube 1. Here, "adapted" means that the head of the sampling rod 8 is almost close to the bottom of the first sealing tube 1. When the second sealing tube 2 is threadedly fixed to the first sealing tube 1, it is ensured that the head of the sampling rod 8 can be immersed in the mixture. The structure of the sampling rod 8 is existing technology and will not be described in detail in this embodiment.

[0031] The third sealing tube 3 has a liquid storage chamber 9 inside. A liquid outlet pipe 10 is fixedly installed at the end of the third sealing tube 3 facing the second sealing tube 2; that is, a liquid outlet pipe 10 is fixedly installed at the bottom of the third sealing tube 3, and the liquid outlet pipe 10 communicates with the liquid storage chamber 9. The end of the liquid outlet pipe 10 away from the third sealing tube 3 is sealed and abuts against the sealing plate 4. The sealing and abutting method here is as follows: Figure 3-5 As shown, a sealing ring 11 is fixed on the upper surface of the sealing disc 4. The sealing ring 11 is made of silicone. A groove 111 is formed on the sealing ring 11. The end of the liquid outlet pipe 10 abuts against the sealing ring 11, that is, the bottom end of the liquid outlet pipe 10 extends into the groove 111 and abuts against the sealing ring 11 to achieve sealing.

[0032] To further ensure that the bottom end of the outlet pipe 10 can be tightly pressed against the sealing ring 11, in this embodiment, a support column 12 is fixed between the sealing plate 4 and the leakage plate 5. The support column 12 can provide an upward support force to the sealing plate 4, preventing the sealing plate 4 from being concave and deformed downward when the outlet pipe 10 is pressed against the sealing plate 4, so that the outlet pipe 10 and the sealing ring 11 cannot be tightly pressed together, thus causing leakage.

[0033] In this embodiment, the first sealing tube 1, the second sealing tube 2, and the third sealing tube 3 are all made of transparent plastic, making them lightweight and easy to observe. Furthermore, Figure 4 , 5 The diagonal cross-sectional lines in the text are for illustrative purposes only and are not intended to limit the material.

[0034] The sampling rod 8 has a head at the end near the bottom of the first sealing tube 1. In this embodiment, the head is made of short nylon fibers, a technique already in use. The choice of short nylon fibers for the head in this embodiment is primarily to improve sampling efficiency. For example, da Vinci surgical instruments must be thoroughly cleaned after use to prevent infection during subsequent use. Currently, the cleanliness of da Vinci surgical instruments is often verified through sampling and testing; that is, samples are taken from the cleaned instruments, and then the samples are tested. If the sampling is incomplete, the test data cannot indicate whether the instruments are truly clean. Using a head made of short nylon fibers maximizes contact with the sample area, increasing sample adhesion and thus resulting in more accurate test data.

[0035] In this embodiment, first screw on the second sealing tube 2. The second sealing tube 2 and the third sealing tube 3 separate from the first sealing tube 1. Use the sampling rod 8 to sample the surface of the medical device. After sampling, screw the second sealing tube 2 and the first sealing tube 1 together to fix them in place, positioning the sampling rod 8 in the first sealing tube 1. Then screw on the third sealing tube 3. The third sealing tube 3 moves upward under the threaded engagement. At this time, the liquid outlet tube 10 separates from the sealing ring 11, creating a gap. The mixed liquid in the storage chamber 9 flows down from the gap, then flows through the gap 13 to the leakage tray 5, and then flows through the inlet hole 7 on the leakage tray 5 into the first sealing tube 1 to mix with the head of the sampling rod 8. After the mixture is evenly mixed, drop the mixture into the ATP fluorescence detector for measurement.

[0036] In this embodiment, the mixture can only flow down by manually turning the third sealing tube 3, which avoids the problem of the mixture flowing out automatically due to external force, thus ensuring the sensitivity and stability of the mixture.

[0037] It should be noted that the above description is merely 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 above embodiments, those skilled in the art can still modify the technical solutions described in the above 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 ATP sampler characterized in that, The first sealed tube, the second sealed tube and the third sealed tube are detachably connected in a sealed manner; The second sealed tube is internally fixed with a sealing disc and a liquid leakage disc, the sealing disc has a diameter smaller than the inner diameter of the second sealed tube, a plurality of connecting blocks are fixed between the outer edge of the sealing disc and the inner wall of the second sealed tube, and the connecting blocks are arranged in a circumferential direction of the sealing disc; the liquid leakage disc is provided with a plurality of liquid inlet holes, and the liquid leakage disc is fixed with a sampling rod on the side facing the first sealed tube, and the length of the sampling rod is matched with the length of the first sealed tube; The third sealed tube is internally provided with a liquid storage cavity, and the end of the third sealed tube facing the second sealed tube is fixed with a liquid outlet pipe in communication with the liquid storage cavity, and the end of the liquid outlet pipe away from the third sealed tube is sealed and abuts on the sealing disc.

2. The ATP sampler according to claim 1, wherein, The sealing disc is fixed with a sealing ring, and the end of the liquid outlet pipe abuts on the sealing ring.

3. An ATP sampler according to claim 2, wherein, The material of the sealing ring is silica gel.

4. An ATP sampler according to any one of claims 1-3, characterized in that, The sealing disc and the liquid leakage disc are arranged in parallel, and a supporting column is fixed between the sealing disc and the liquid leakage disc.

5. An ATP sampler according to claim 4, wherein, The first sealed tube, the second sealed tube and the third sealed tube are all connected in a threaded manner.

6. An ATP sampler according to any one of claims 1-3, 5, wherein, The first sealed tube, the second sealed tube and the third sealed tube are all made of transparent plastic.

7. An ATP sampler according to claim 6, wherein, The end of the sampling rod close to the bottom of the first sealed tube is a head, and the head is made of nylon short fibers.

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