CN111803138A - Mask type respiratory tract pathogen sampling device - Google Patents

Abstract

The invention discloses a mask type respiratory tract pathogen sampling device which comprises a mask, a gas delivery pipe, a collecting pipe, a pipe cover, a gas dispersion coil pipe, an exhaust pipe and a refrigeration box, wherein a one-way valve air suction port and an air outlet are arranged on the mask; the collecting pipe is detachably provided with a pipe cover, the pipe cover is provided with an air diffusion coil pipe and an exhaust pipe in an inserted mode, and the air diffusion coil pipe penetrates through the bottom of the collecting pipe; one end of the gas pipe is connected to the gas outlet of the mask, and the other end of the gas pipe is connected to the pipe orifice of the gas diffusion coil pipe; pathogen collecting and preserving fluid is contained in the collecting tube; the collection tube may be fittingly placed within the refrigeration cassette. The invention has the innovation points that the mask intercepts the gas exhaled by a person to be sampled, the gas is led into the air diffusion coil pipe immersed with the sampling preservation liquid, and then the gas is exhausted through the micropores on the spiral air diffusion coil pipe, so that the pathogens carried in the bubbles are dissolved in the pathogen collecting preservation liquid, and the purpose of efficiently collecting the respiratory pathogens is achieved.

Description

A mask-type respiratory pathogen sampling device

technical field

The invention belongs to the technical field of pathogen sampling appliances, and in particular relates to a mask-type respiratory pathogen sampling device.

Background technique

At present, most of the sampling of respiratory infectious disease pathogens (such as new coronavirus, influenza virus, measles virus, Mycobacterium tuberculosis, etc.) use swabs to scrape the mucous membranes of the oropharynx or nasopharynx, and then wash the viruses on the swabs. down for detection and analysis. However, this method has three disadvantages: First, since the foci of most pathogens of respiratory infectious diseases are in the lungs of the lower respiratory tract, the amount of pathogens remaining on the mucosal walls of the oropharynx and nasopharynx in the upper respiratory tract is higher than that of the upper respiratory tract. Therefore, there are not many pathogens that can be scratched; second, the surface area of the swab head is very limited, and the mucosal cells and pathogens it can adhere to are also very limited; third, if you want to scratch as much as possible Pathogens, it is necessary to extend the swab as far as possible to the back of the upper respiratory tract for collection, but this will make the sampled person feel very uncomfortable, especially when the nasopharynx is used for sampling. Therefore, there is an urgent need to invent a sampling tool, which can collect a large number of pathogens discharged from the breeding points of lower respiratory tract lesions without causing too much discomfort to the sampled person.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the above-mentioned prior art, the present invention invents a mask-type respiratory pathogen sampling device.

In order to achieve the above object, the present invention adopts the following technical scheme:

A mask-type respiratory pathogen sampling device, comprising a mask, an air delivery pipe, a collection pipe, a pipe cover, a diffuser coil and an exhaust pipe, and the mask is provided with a one-way valve suction port and an air outlet; the The collecting pipe is detachably provided with a pipe cover, the pipe cover is provided with a gas diffuser coil and an exhaust pipe, and the gas diffuser coil extends to the bottom of the collecting pipe; one end of the gas transmission pipe is connected to On the air outlet on the mask, the other end of the air delivery pipe is connected to the pipe opening of the air diffuser coil on the pipe cover; the collection pipe is filled with pathogen collection and preservation solution.

The innovations of the present invention are as follows: First, a spiral coil tube designed with micropores is used to release the gas exhaled by the sampler in a large amount and dispersedly in the solution, so as to enrich the pathogens carried in the gas and elute them in the pathogens. Collect the preservation solution; second, the gas exhaled by the sampled person is introduced into the pathogen collection tube by wearing a special mask, and the gas exported by the mask is all from the lung exhalation of the sampled person, which contains a large amount of pathogens; The sampler has a good medical compliance with wearing a mask, which can allow the sampled person to wear a mask for a long time and wash out pathogens to increase the amount of pathogens collected.

Further, the tube body of the collection tube is a 50ml pointed-bottom or round-bottom centrifuge tube commonly used in laboratories, and the tube cover is modified to use a conventional centrifuge tube, which can be conveniently matched with other related equipment in subsequent experiments.

Further, the lower part of the air diffusing coil is spirally coiled, and the wall of the lower part of the air diffusing coil is densely covered with air diffusing holes. The diffuser holes are fully contacted and mixed with the pathogen collection and preservation solution, so that the pathogenic microorganisms in the exhaled air are fully dissolved in the pathogen collection and preservation solution.

Further, the pore size of the air diffuser is 0.1-0.3mm, the smaller the pore size, the smaller the bubbles of exhaled air, the larger the surface area of the bubbles, the more the contact area with the pathogen collection and preservation solution. The greater the chance of dissolution in the pathogen preservation solution. In addition, the design of small aperture allows more air diffusion holes to be set on the limited spiral coil.

Further, it also includes a refrigerated box, the refrigerated box includes a hollow box body, a slot, a waistband and a water injection port, the top of the box body is provided with a slot for placing the collection tube, and the collection tube can be attached to a suitable It is placed in the refrigerated box; the box body is provided with a belt, which is convenient for the sampled person to hang on his body comfortably for long-term sampling; Water or other refrigerants are injected into the refrigerated box, so that the pathogenic microorganisms dissolved into the collection box can better preserve their biological activity at low temperature when the refrigerated box is pre-cooled.

Further, a check valve is also included, and a check valve is provided at the air inlet end of the air diffusing coil to prevent the preservation liquid in the collection pipe from flowing back into the gas transmission pipe.

Further, the exhaust pipe is provided with a filter membrane and a waterproof and breathable membrane. Under the condition that the preservation liquid in the collection pipe is not sprayed out, the gas discharged from the collection pipe can be filtered to prevent the escape of pathogens and cause environmental pollution.

The advantages of the present invention are: the present invention uses a mask to collect the pathogens exhaled from the lungs of the sampled person, and then uses the pathogen collection and preservation solution to elute the exhaled air, so that the pathogens entrained in the exhaled air are eluted to the pathogen collection and preservation. In the liquid, the purpose of collecting the pathogens of lower respiratory tract infection in a convenient and large amount is achieved. The device has the advantages of simple structure, convenient use, good medical compliance, can collect pathogenic microorganisms of lower respiratory tract infection, large amount of enrichment and collection, and can maintain the biological activity of pathogens. And use, low production cost, strong practicability, suitable for pathogen collection in various respiratory infectious diseases.

Description of drawings

Fig. 1 is the structural representation of a kind of mask-type respiratory pathogen sampling device of the present invention;

FIG. 2 is a schematic structural diagram of a tube cover and a diffuser coil in a mask-type respiratory pathogen sampling device of the present invention.

Detailed ways

The present invention is described in detail below in conjunction with the accompanying drawings:

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by "left", "right", "upper", "lower", etc. are based on the orientations or positional relationships shown in the drawings, or the invention The orientation or positional relationship that is usually placed when the product is used is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be used. It is understood as a limitation of the present invention.

As shown in Figure 1-2, a mask-type respiratory pathogen sampling device includes a mask 1, an air delivery pipe 2, a collection pipe 3, a pipe cover 4, an air diffuser coil 5, an exhaust pipe 6, an air diffuser hole 7, and a refrigerator box. 8 and a check valve 9, the mask 1 is provided with a one-way valve suction port 11 and an air outlet 12, the collection pipe 3 is detachably provided with a pipe cover 4, and the collection pipe 3 adopts a 50ml universal Conical bottom or round bottom centrifuge tube, set in the tube to hold the collection and preservation solution of pathogens. One of the innovative points of this embodiment is to use a 50ml centrifuge tube commonly used in laboratories for transformation, and it is only necessary to install the air diffuser coil 5 and the exhaust pipe 6 on the tube cover 4 . Before not in use, the nozzles of the diffuser coil 5 and the exhaust pipe 6 will be covered with rubber caps to avoid contamination or leakage of the pre-installed pathogen collection and preservation solution therein. After the components of the collecting pipe are assembled, the air diffuser coil 5 extends to the lower part of the collecting pipe 3, and a filter membrane and a waterproof and breathable membrane are arranged at the nozzle of the exhaust pipe 6, and the filter membrane is located on the outside. One end of the gas transmission pipe 2 is sleeved on the air outlet 12, and the other end of the air transmission pipe 2 is sleeved and connected with the air diffuser coil 5, and the air diffuser coil 5 is provided with a check valve on the connecting end of the air transmission pipe 2. 9. It can prevent the preservation liquid from flowing back into the gas pipe 2.

The end of the air diffusing coil 5 in this embodiment is closed, and is composed of a straight pipe and a spiral coil. The spiral coil is located at the lower part of the air diffusing coil 5, and the straight pipe passes through the middle of the spiral coil. The tube cover 4 is protruded, and the lower end is connected to the bottom of the spiral coil tube. Air diffuser holes 7 are arranged on the lower half of the spiral coil tube and the straight tube, and the air diffuser holes 7 are distributed in an orderly and densely manner, and the diameter of the air diffuser holes 7 is 0.2 mm. The refrigerated box 8 includes a hollow box body 81, a slot 82, a waistband 83 and a water injection port 84. The upper part of the box body 81 is provided with a slot 82 for placing the collecting pipe 3; the box body 81 A waist belt 83 is arranged on the upper surface; the water filling port 84 is arranged on the upper surface of the box body 81 . When the user needs to wear it for a long time to collect pathogens, he can take out the pre-cooled refrigerated box 8 from the refrigerator, hang it on his body, plug in the collection tube 3, and connect the air delivery tube 2.

Although the specific embodiments of the present invention have been described and illustrated in detail above, it should be noted that various changes and modifications can be made to the above-mentioned embodiments without departing from the spirit of the present invention and the appended rights The scope of the requirement is stated.

Claims (7)

1. A mask type respiratory tract pathogen sampling device is characterized by comprising a mask (1), a gas conveying pipe (2), a collecting pipe (3), a pipe cover (4), a gas diffusion coil pipe (5) and an exhaust pipe (6), wherein a one-way valve gas suction port (11) and a gas outlet (12) are arranged on the mask (1), and the pipe cover (4) is detachably arranged on the collecting pipe (3); the pipe cover (4) is inserted with an air-dispersing coil pipe (5) and an exhaust pipe (6), and the air-dispersing coil pipe (5) extends to the bottom of the collecting pipe (3); one end of the gas pipe (2) is connected to the gas outlet (12) of the mask, and the other end of the gas pipe (2) is connected to the pipe orifice of the gas diffusion coil pipe (5); pathogen collection and preservation solution is contained in the collection pipe (3).

2. The mask type respiratory pathogen sampling device according to claim 1, wherein the collection tube (3) is a conventional pointed-bottom or round-bottom centrifuge tube.

3. The mask type respiratory tract pathogen sampling device according to claim 2, wherein the lower part of the air diffusion coil (5) is spirally coiled, and air diffusion holes (7) are distributed on the periphery of the tube wall.

4. The mask type respiratory tract pathogen sampling device according to claim 3, wherein the aperture of the air diffusion hole (7) is 0.1-0.3 mm

5. The mask type respiratory tract pathogen sampling device according to claim 4, further comprising a refrigeration box (8), wherein the refrigeration box (8) comprises a hollow box body (81), a slot (82), a waistband (83) and a water injection port (84), and the slot (82) for placing the collection tube (3) is arranged on the upper surface of the box body (81); the slot (82) is matched and matched with the collecting pipe (3); a waistband (83) is arranged on the box body (81); the water injection port (84) is arranged on the upper surface of the box body (81).

6. The mask respiratory pathogen sampling device according to claim 5, further comprising a check valve (9), wherein the air inlet end of the air dispersion coil (5) is provided with the check valve (9).

7. The mask type respiratory pathogen sampling device according to claim 6, wherein the exhaust pipe (6) is provided with a filtering membrane and a waterproof breathable membrane.

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