Surface smearing sampling tube

Abstract

The utility model relates to the technical field of microbiological detection, and discloses a surface smearing sampling tube which comprises a transparent tube body, a tube cover, a sampling swab and a functional filter element, an inner cavity for accommodating a culture solution is formed in the transparent tube body and is communicated with a tube opening of the transparent tube body; the tube cover hermetically covers the tube opening; the sampling swab is connected with the tube cover and is arranged in the inner cavity of the transparent tube body; the functional filter element is a filter element with fine pores, the functional filter element comprises a main body, a containing cavity for containing a neutralizing agent is formed in the main body, and the functional filter element is arranged in an inner cavity of the transparent pipe body. According to the technical scheme of the utility model, the neutralizing agent can be prevented from being dispersed in the culture solution to influence the observation of related workers on the microorganism culture condition.

Description

Technical Field

[0001] The utility model relates to the technical field of microbial detection, in particular to a surface smear sampling tube. Background Art

[0002] When sampling environmental samples, the surface smear sampling method is generally used. The surface smear sampling method is a common method that involves swabbing the sample surface with a swab. It can be applied to the monitoring of microorganisms on food surfaces and cosmetics, the cleanliness monitoring of sterile workshops in pharmaceutical companies, and the monitoring of disinfection effects in public places. It is mainly used for sampling of surfaces of equipment in public health places, hospitals, the cosmetics industry, the food industry, the surfaces of operating tables, the hands of operators, and the surfaces of objects containing preservatives and disinfectants in the public health field. After sampling, bacteria or viruses are cultured to evaluate the content of pathogenic microorganisms in the sampling environment.

[0003] Since the surfaces of objects are often disinfected in the above-mentioned places, alcohol, disinfectants and other disinfectants on the surface of objects will be collected into the sampling tube when surface smearing is used. Therefore, neutralizers need to be added to the culture medium to eliminate alcohol, disinfectants and other disinfectants. However, since the neutralizer is a fine particle and a large amount is required, the neutralizer in the culture medium is more dispersed, which will affect the observation of the microbial culture by relevant staff. Utility Model Content

[0004] The main purpose of the utility model is to provide a surface smear sampling tube, aiming to prevent the neutralizer from being dispersed in the culture solution and affecting the observation of the microbial culture situation by the relevant staff.

[0005] To achieve the above purpose, the surface coating sampling tube proposed by the utility model comprises:

[0006] A transparent tube body, wherein an inner cavity for accommodating a culture fluid is provided in the transparent tube body, and the inner cavity is connected to a tube opening of the transparent tube body;

[0007] A pipe cover, wherein the pipe cover sealing cover is arranged at the pipe opening;

[0008] a sampling swab, the sampling swab being connected to the tube cover and disposed in the inner cavity; and

[0009] A functional filter element, wherein the functional filter element is a filter element with fine pores, and the functional filter element comprises a main body, wherein the main body is provided with a accommodating cavity for accommodating a neutralizing agent, and the functional filter element is arranged in the inner cavity of the transparent tube body.

[0010] Optionally, the main body is provided with an opening communicating with the accommodating cavity, and the functional filter element further comprises a cover body, which covers the opening and is detachably connected to the main body.

[0011] Optionally, the main body includes side walls and a bottom plate and a top plate arranged at both ends of the side walls, the side walls, the bottom plate and the top plate enclose the accommodating cavity, the opening is opened on the top plate, at least part of the structure of the cover body is located in the opening and is interference fit with the top plate.

[0012] Optionally, a guiding slope is formed on the top plate at the opening, and at least a portion of the cover body can be embedded in the groove along the guiding slope.

[0013] Optionally, a portion of the cover body close to the opening is provided with an inclined table surface, and the inclined table surface cooperates with the guiding inclined surface to enable one end of the cover body to be embedded in the opening.

[0014] Optionally, there are multiple functional filter elements.

[0015] Optionally, an outer circumference of one end of the transparent tube body close to the tube opening is provided with an external thread, an internal thread is provided in the tube cover, and the transparent tube body and the tube cover are threadedly connected through the external thread and the internal thread.

[0016] Optionally, the surface smear sampling tube also includes a silicone sealing ring, which is arranged on a side of the tube cover away from the transparent tube body. When the tube cover is closed on the transparent tube body, the silicone sealing ring abuts against the end surface of the transparent tube body at the tube mouth.

[0017] Optionally, the surface smear sampling tube further comprises a silicone plug, which is arranged in the tube cover at a side away from the transparent tube body, and when the tube cover is covered on the transparent tube body, the silicone plug is inserted into the tube opening and has an interference fit with the transparent tube body;

[0018] Wherein, the cross-sectional area of ​​the silicone plug gradually decreases from an end of the silicone plug close to the tube cover to an end of the silicone plug far from the tube cover.

[0019] Optionally, a groove is formed at one end of the silicone plug away from the tube cover, and one end of the sampling swab is inserted into the groove; a plurality of snap-in blocks are provided at intervals on the inner circumferential wall of the groove, and each snap-in block abuts against the sampling swab for limiting position on one side of the circumferential wall facing away from the groove.

[0020] In the technical solution of the utility model, the sampling swab is used for surface smear sampling, the inner cavity of the transparent tube contains culture fluid for the growth of microorganisms, the functional filter element has fine pores for the circulation of the culture fluid, and a neutralizer is placed in the accommodating cavity formed by the main body of the functional filter element. The neutralizer can eliminate alcohol, disinfectants and other disinfectants in the culture fluid flowing through the functional filter element. By concentrating the neutralizer in the main body of the functional filter element, it is avoided that the neutralizer is dispersed in the culture fluid to affect the observation of the microbial culture situation by relevant staff, and the functional filter element itself can adsorb disinfectants such as alcohol and disinfectants, which is convenient for the neutralizer to eliminate alcohol, disinfectants and other disinfectants. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the surface coating sampling tube provided by the utility model;

[0023] Figure 2 It is a schematic diagram of the structural decomposition of the functional filter element;

[0024] Figure 3 Schematic diagram of the structure of the tube cover.

[0025] Description of Figure Numbers:

[0026] Label name Label name 1000 Surface smear sampling tube 4 Functional filter 1 Transparent tube body 41 main body 2 Tube cap 411 Guide slope 21 Silicone plug 42 Cover 22 Card block 421 Sloping table 3 Sampling swab 5 Culture medium

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] Please refer to Figures 1 to 3 The utility model proposes a surface smear sampling tube 1000, comprising a transparent tube body 1, a tube cover 2, a sampling swab 3 and a functional filter element 4; the transparent tube body 1 is provided with an inner cavity for accommodating a culture fluid 6, and the inner cavity is connected to the tube mouth of the transparent tube body 1; the tube cover 2 has a sealing cover arranged at the tube mouth; the sampling swab 3 is connected to the tube cover 2 and is arranged in the inner cavity of the transparent tube body 1; the functional filter element 4 is a filter element with fine pores, and the functional filter element 4 comprises a main body 41, and the main body 41 is provided with a accommodating cavity for accommodating a neutralizer, and the functional filter element 4 is arranged in the inner cavity of the transparent tube body 1.

[0032] In this embodiment, the sampling swab 3 is used for surface smear sampling, the inner cavity of the transparent tube body 1 contains a culture solution 6 for microbial growth, the functional filter element 4 has fine pores for the culture solution 6 to flow, and a neutralizer is placed in the accommodating cavity formed by the main body 41 of the functional filter element 4. The neutralizer can eliminate alcohol, disinfectants and other disinfectants in the culture solution 6 flowing through the functional filter element 4. By concentrating the neutralizer in the main body 41 of the functional filter element 4, it is avoided that the neutralizer is dispersed in the culture solution 6 to affect the observation of the microbial culture by the relevant staff, and the functional filter element 4 itself can adsorb alcohol, disinfectants and other disinfectants, which is convenient for the neutralizer to eliminate alcohol, disinfectants and other disinfectants. In addition, when the functional filter element 4 is placed in the transparent tube body 1, it will float on the culture solution 6, which is more convenient for the staff to observe the microbial culture in the culture solution 6.

[0033] For ease of use, in one embodiment of the present invention, please refer to Figure 2The main body 41 is provided with an opening communicating with the accommodating cavity, and the functional filter element 4 further comprises a cover 42, which covers the opening and is detachably connected to the main body 41. The detachable connection can speed up the assembly and disassembly of the functional filter element 4, and the neutralizer can be conveniently placed in the accommodating cavity of the main body 41. And because the cover 42 is detachably connected to the main body 41, after being used once, the cover 42 and the main body 41 can be separated to replace a new neutralizer, so that the functional filter element 4 can be reused, reducing the cost of detection.

[0034] Specifically, in one embodiment of the present invention, please refer to Figure 2 The main body 41 includes side walls and a bottom plate and a top plate arranged at both ends of the side walls. The side walls, the bottom plate and the top plate are enclosed to form a accommodating cavity. An opening is provided on the top plate. At least part of the cover body 42 is located in the opening and is interference fit with the top plate. Through the interference fit design, after the cover body 42 is embedded in the opening, there is no gap between the cover body 42 and the inner wall of the top plate, so as to avoid the neutralizer from spilling into the culture solution 6 during use, affecting the staff's observation of the microbial culture in the culture solution 6; and because the cover body 42 is interference fit with the inner wall of the top plate, the cover body 42 is not easy to be separated from the main body 41. When the functional filter element 4 is placed in the transparent tube body 1, there is no need to consider whether the cover body 42 is facing up or down, and it can be directly placed in the transparent tube body 1, which is convenient for the staff to use.

[0035] In order to facilitate the assembly of the functional filter element 4, in one embodiment of the present utility model, please refer to Figure 2 A guide slope 411 is formed on the top plate at the opening, and at least a portion of the cover body 42 can be embedded in the opening along the guide slope 411. Through the design of the guide slope 411, the cover body 42 can be easily embedded in the opening through the guide slope 411 without the need for calibration and other steps, so that the cover body 42 and the main body 41 can be quickly assembled into a functional filter element 4.

[0036] Further, in one embodiment of the present invention, please refer to Figure 2 The cover 42 is provided with an inclined table 421 near the opening, and the inclined table 421 matches the guiding slope 411 of the groove. Through the cooperation of the inclined table 421 and the guiding slope 411, the cover 42 can be easily inserted into the opening through the guiding slope 411. In addition, the upper and lower ends of the cover 42 are provided with inclined tables 421. When assembling the functional filter element 4, whether the upper end or the lower end of the cover 42 faces the opening of the top plate, there can be an inclined table 421 that matches the guiding slope 411 of the top plate, so that the cover 42 and the main body 41 can be quickly assembled into the functional filter element 4.

[0037] Specifically, in one embodiment of the present invention, the main body 41 is made of a polymer material with adsorptive properties such as polypropylene or polyethylene, which can adsorb disinfectants such as alcohol and disinfectants, making it easier for the neutralizer to eliminate disinfectants such as alcohol and disinfectants.

[0038] In order to ensure the elimination effect, in one embodiment of the present utility model, please refer to Figure 1 There are multiple functional filter elements 4, and the multiple functional filter elements 4 are arranged around the sampling swab 3, and the multiple functional filter elements 4 all float on the culture solution 6, which will not affect the observation of the microbial culture situation by relevant staff.

[0039] Further, in one embodiment of the present invention, please refer to Figure 1 and Figure 3 An external thread is provided on the outer periphery of one end of the transparent tube body 1 close to the tube mouth, and an internal thread is provided inside the tube cover 2. The transparent tube body 1 and the tube cover 2 are screwed together through the external thread and the internal thread. The screw connection has the advantages of being simple, reliable, easy to disassemble and reuse, and is convenient to use. It also provides good sealing performance to prevent sample leakage or external contamination.

[0040] In order to ensure a good sealing effect, in one embodiment of the utility model, the surface coating sampling tube 1000 also includes a silicone sealing ring 5, which is arranged on the side of the tube cover 2 away from the transparent tube body 1. When the tube cover 2 is covered on the transparent tube body 1, the silicone sealing ring 5 abuts against the end face of the tube mouth of the transparent tube body 1, thereby sealing the transparent tube body 1 to prevent outside air from entering the transparent tube body 1 and affecting the culture of microorganisms in the culture solution 6.

[0041] Further, in one embodiment of the present invention, please refer to Figure 3 The surface smear sampling tube 1000 also includes a silicone plug 21, which is arranged on the side of the tube cover 2 away from the transparent tube body 1. When the tube cover 2 is covered on the transparent tube body 1, the silicone plug 21 is inserted into the tube mouth and has an interference fit with the transparent tube body 1. The silicone plug 21 can bring a better sealing effect, increase the sealing between the tube cover 2 and the transparent tube body 1, and prevent the outside air from entering the transparent tube body 1 to affect the cultivation of microorganisms in the culture solution 6. In addition, from the end of the silicone plug 21 close to the tube cover 2 to the end of the silicone plug 21 away from the tube cover 2, the cross-sectional area of ​​the silicone plug 2 gradually decreases, which can facilitate the tightening of the tube cover 2 to ensure a good sealing effect.

[0042] In order to ensure the stability of the connection between the sampling swab 3 and the tube cover 2, in one embodiment of the utility model, a groove is formed at the end of the silicone plug 21 away from the tube cover 2, and one end of the sampling swab 3 is inserted into the groove; a plurality of snap-in blocks 22 are arranged at intervals on the inner peripheral wall of the groove, and a side of each snap-in block 22 facing away from the peripheral wall of the groove abuts against the sampling swab 3 for limiting position. Through the cooperation of the plurality of snap-in blocks 22, the sampling swab 3 can be firmly connected to the tube cover 2 and limited to a specific position, so as to fully contact with the sampling surface when used and absorb a sufficient amount of sample.

[0043] In one embodiment of the present invention, the transparent tube 1 is made of transparent polymer materials such as polycarbonate or polyethylene terephthalate, which have high light transmittance, low scattering and excellent light resistance.

[0044] In order to better fix and seal the sample obtained by sampling, in one embodiment of the present utility model, please refer to Figure 1 The bottom wall of the inner cavity of the transparent tube body 1 is set in a conical surface, so that the sampled sample flows to the bottom of the tube, avoiding leakage or overflow of the sample during transportation or storage. In addition, the bottom wall set in a conical surface also helps to transfer the sample to other containers or equipment more easily during the analysis process.

[0045] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A surface smear sampling tube, characterized in that: include: A transparent tube body, wherein an inner cavity for accommodating a culture fluid is provided in the transparent tube body, and the inner cavity is connected to a tube opening of the transparent tube body; A pipe cover, wherein the pipe cover sealing cover is arranged at the pipe opening; A sampling swab, the sampling swab is connected to the tube cover and disposed in the inner cavity; as well as A functional filter element is a filter element with fine pores. The functional filter element comprises a main body, and a housing cavity for housing a neutralizing agent is provided on the main body. The functional filter element is arranged in the inner cavity.

2. The surface smear sampling tube according to claim 1, characterized in that: The main body is provided with an opening communicating with the accommodating cavity, and the functional filter element further comprises a cover body, which covers the opening and is detachably connected to the main body.

3. The surface smear sampling tube according to claim 2, characterized in that: The main body includes a side wall and a bottom plate and a top plate arranged at both ends of the side wall. The side wall, the bottom plate and the top plate enclose the accommodating cavity. The top plate is provided with the opening. At least part of the cover body is located in the opening and is interference fit with the top plate.

4. The surface smear sampling tube according to claim 3, characterized in that: The top plate is formed with a guiding slope at the opening, and at least a portion of the cover body can be embedded in the opening along the guiding slope.

5. The surface smear sampling tube according to claim 4, characterized in that: A portion of the cover body close to the opening is provided with an inclined table surface, and the inclined table surface cooperates with the guiding inclined surface to enable one end of the cover body to be embedded in the opening.

6. The surface smear sampling tube according to any one of claims 1 to 5, characterized in that: There are multiple functional filter elements.

7. The surface smear sampling tube according to any one of claims 1 to 5, characterized in that: An outer circumference of one end of the transparent tube body close to the tube opening is provided with an external thread, and an internal thread is provided in the tube cover. The transparent tube body and the tube cover are threadedly connected by the external thread and the internal thread.

8. The surface smear sampling tube according to any one of claims 1 to 5, characterized in that: The surface smear sampling tube also includes a silicone sealing ring, which is arranged on a side of the tube cover away from the transparent tube body. When the tube cover is closed on the transparent tube body, the silicone sealing ring abuts against the end surface of the transparent tube body at the tube mouth.

9. The surface smear sampling tube according to any one of claims 1 to 5, characterized in that: The surface smear sampling tube also includes a silicone plug, which is arranged on a side of the tube cover away from the transparent tube body. When the tube cover is covered on the transparent tube body, the silicone plug is inserted into the tube mouth and has an interference fit with the transparent tube body. Wherein, the cross-sectional area of ​​the silicone plug gradually decreases from an end of the silicone plug close to the tube cover to an end of the silicone plug far from the tube cover.

10. The surface smear sampling tube according to claim 9, characterized in that: A groove is formed at one end of the silicone plug away from the tube cover, and one end of the sampling swab is inserted into the groove; a plurality of clamping blocks are arranged at intervals on the inner peripheral wall of the groove, and a side of each clamping block facing away from the peripheral wall of the groove abuts against the sampling swab for limiting position.

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