Mycobacterium tuberculosis droplet collecting device

Abstract

The utility model relates to the technical field of medical treatment, and discloses a tubercle bacillus droplet collecting device which comprises a mask body, a one-way air outlet valve and ear hooks, the one-way air outlet valve is installed at the position, corresponding to the mouth and the nose, of the mask body, the ear hooks are connected to the two edge sides of the mask body, and the tubercle bacillus droplet collecting device further comprises a droplet collecting mechanism. The foam collecting mechanism comprises a mounting frame and a collecting assembly, the mounting frame is mounted at the position, corresponding to the one-way air outlet valve, of the inner side of the mask body, one side of the mounting frame penetrates out of the mask body, and the end face of the end, located outside the mask body, of the mounting frame is provided with a sliding cavity which extends in the length direction of the mounting frame and is open towards the side of the end face. The collecting assembly is slidably arranged in the concave cavity in the length direction of the mounting frame and used for collecting spittle of a patient. The utility model solves the problems in the prior art that the diagnosis rate of early-stage tuberculosis is insufficient and the etiological positive rate is very low.

Description

Technical Field

[0001] The utility model relates to the field of medical technology, in particular to a tuberculosis droplet collection device. Background Art

[0002] Mycobacterium tuberculosis, commonly known as tuberculosis bacillus, is the pathogen that causes tuberculosis. It can invade all organs of the body, but pulmonary tuberculosis is the most common. Tuberculosis is still an important infectious disease. According to the WHO, there are about 8 million new cases each year and at least 3 million people die from the disease.

[0003] In response to the national End-TB strategy by 2035, the positive diagnosis rate of tuberculosis patients is improved, tuberculosis patients are treated early, and the risk of respiratory disease transmission is reduced. Therefore, early diagnosis of tuberculosis is very important. The existing relevant technologies are as follows:

[0004] 1) N95 masks and similar masks have the following disadvantages: they are only for protection and have no function of collecting and detecting germs.

[0005] 2) Tuberculosis detection technology:

[0006] a: Tuberculosis smear, disadvantages: low positive rate;

[0007] b: Tuberculosis culture, Disadvantages: Time-consuming;

[0008] c: Molecular detection technology (Xpert / Xpert ultra), disadvantages: high cost and expensive.

[0009] 3) Method for collecting tuberculosis bacteria:

[0010] a: Sputum, Disadvantages: Early patients have atypical symptoms, no sputum, and low positive rate;

[0011] b: Bronchoscopy lavage. In order to improve the positive detection rate, it is recommended that patients with early tuberculosis undergo bronchoscopy to increase the positive rate of the test. Disadvantages: high cost, surgical and anesthesia risks, and professional personnel are required for the operation;

[0012] c: Tongue swab, disadvantages: short sampling time, and lower positive rate than sputum and bronchoscopy.

[0013] In summary, the current diagnosis rate of early tuberculosis is insufficient and the etiology positivity rate is very low. Therefore, this device is designed to collect pathogens in the droplets of patients with respiratory infectious diseases. Utility Model Content

[0014] In view of this, the purpose of the utility model is to provide a tuberculosis droplet collection device to solve the problems of insufficient diagnosis rate of early tuberculosis and very low etiology positive rate in the prior art.

[0015] The utility model solves the above technical problems through the following technical means: a tuberculosis droplet collection device, including a mask body, a one-way air outlet valve and an ear hook, the one-way air outlet valve is installed at the position of the mask body corresponding to the mouth and nose, the ear hook is connected to the two edge sides of the mask body, and also includes a foam collecting mechanism, the foam collecting mechanism includes a mounting frame and a collecting component, the mounting frame is installed at the position of the inner side of the mask body corresponding to the one-way air outlet valve, one side of the mounting frame passes through the mask body, and the end face of the mounting frame located outside the mask body is provided with a sliding cavity extending along the length direction of the mounting frame and open to one side of the end face, the collecting component is slidably arranged in the concave cavity along the length direction of the mounting frame, and the collecting component is used to collect patient droplets.

[0016] Furthermore, the collection component includes a collection frame and filter cotton, the filter cotton is arranged in the middle of the collection frame and is used to collect the patient's droplets, the collection frame is slidably connected and can be received in the concave cavity of the installation frame, and the filter cotton covers the one-way air outlet valve.

[0017] Furthermore, the side wall of the collection frame is provided with an elastic protrusion, and the inner side wall of the concave cavity is provided with a card groove corresponding to the elastic protrusion.

[0018] Furthermore, a protrusion is provided at one end of the collecting frame away from the mounting frame.

[0019] Furthermore, a one-way air inlet valve is provided at a position of the mask body corresponding to the mouth and nose, and the one-way air inlet valve is located on one side of the one-way air outlet valve.

[0020] Furthermore, a through hole is formed through the one-way air intake valve.

[0021] The beneficial effects of the utility model are:

[0022] 1. This device can be worn for a long time, continuously collecting the patient's droplets, increasing the time for collecting pathogens, improving the positive detection rate of etiology, early treatment, reducing the spread of tuberculosis, and is beneficial to the country's prevention and control of respiratory infectious diseases.

[0023] 2. The cost of this device is not high. Compared with bronchoscopy, it can reduce medical expenses and save medical resources.

[0024] 3. This device does not require professional operation like a bronchoscope. Patients can wear it by themselves, reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0026] Figure 1 It is a structural schematic diagram of a tuberculosis droplet collection device of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the foam collecting mechanism in the utility model;

[0028] Figure 3 It is a structural schematic diagram of the installation frame in the utility model;

[0029] Figure 4 It is a structural schematic diagram of the collection component in the utility model.

[0030] In the above drawings: 1. mask body; 2. one-way air outlet valve; 3. ear hook; 4. mounting frame; 5. collecting frame; 6. filter cotton; 7. elastic protrusion; 8. protrusion; 9. one-way air inlet valve; 10. through hole. DETAILED DESCRIPTION

[0031] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0032] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the figure. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] like Figure 1-4As shown, an embodiment of the utility model proposes a tuberculosis droplet collection device, including a mask body 1, a one-way air outlet valve 2 and an ear hook 3. The one-way air outlet valve 2 is installed at the center of the mask body 1 corresponding to the mouth and nose position, and the ear hook 3 is connected to the two edge sides of the mask body 1. In this embodiment, the mask body 1 and the ear hook 3 can adopt the N95 mask structure of the prior art, so they are not repeated here. The one-way air outlet valve 2 can adopt the breathing valve on the existing kn95 dust mask that can be directly purchased on the market. Its structure includes a mounting shell and a diaphragm hinged in the mounting shell, an air hole is arranged on the outside of the mounting shell, and a cross-shaped bracket is arranged on the inside. The diaphragm realizes a one-way effect under the action of airflow pressure, forming "only air out but no air in". It also includes a foam collecting mechanism, which includes a mounting frame 4 and a collecting component. The mounting frame 4 is fixedly mounted on the inner side of the mask body 1 at a position corresponding to the one-way air outlet valve, and one side of the mounting frame 4 passes through the mask body 1. An end face of the mounting frame 4 located outside the mask body 1 is provided with a sliding cavity extending along the length direction of the mounting frame 4 and open toward one side of the end face. The collecting component is slidably arranged in the concave cavity along the length direction of the mounting frame 4, and the collecting component is used to collect patient droplets.

[0034] In fact, the collection component can be a filter cotton directly set in the middle of the inner side of the mask body. In this embodiment, the collection component includes a collection frame 5 and a filter cotton 6. The filter cotton 6 is set in the middle of the collection frame 5 and is used to collect the patient's droplets. The collection frame 5 is slidably connected and can be received in the concave cavity of the installation frame 4. The filter cotton 6 covers the one-way air outlet valve 2. The side wall of the collection frame 5 is provided with an elastic protrusion 7, and the inner wall of the concave cavity is provided with a card groove corresponding to the elastic protrusion 7. The end of the collection frame 5 away from the installation frame 4 is integrally formed with a protrusion 8 to facilitate the insertion and removal of the collection frame 5. With such a structural design, detection is more convenient and quick.

[0035] In this embodiment, when the collecting frame 5 is received in the concave cavity of the mounting frame 4, the collecting frame 5 seals the end face of the mounting frame 4 so that the exhaled gas can only be exhaled through the filter cotton 6 and the one-way air outlet valve 2. After the device is worn, it is exposed to the air, and there may be a small amount of microorganisms to be detected in the air. The molecular biology detection is sensitive and false positives are prone to occur. The device is provided with a one-way air outlet valve 2, and the breathed gas can only pass through one side of the one-way air outlet valve 2. The filter cotton 6 is designed on the inner side of the one-way air outlet valve 2, so that pathogens are only collected on the inner side of the device to reduce pollution, and the filter cotton 6 can be taken out from the mounting frame 4, the collecting frame 5 of the mounting frame 4 is extracted and the filter cotton 6 is sent for inspection in time. Specifically, the pathogens on the filter cotton 6 can be detected by molecular biology (Xpert / Xpertultra) and the like, and the remaining device can be disposed of as ordinary medical waste after use.

[0036] A one-way air inlet valve 9 is arranged at a position of the mask body 1 corresponding to the mouth and nose, and the one-way air inlet valve 9 is located on one side of the one-way air outlet valve 2. A through hole 10 is provided through the one-way air inlet valve 9.

[0037] In this embodiment, since the structure of the device is similar to that of an N95 mask, there is breathing resistance. By setting a "only air out but not air in" one-way outlet valve 2 in the middle of the front end of the device and a "only air in but not air out" one-way inlet valve 9 on the side of the device, the resistance of the air flow is reduced to a minimum and the wearing comfort is increased. For patients with poor lung function who need oxygen, a through hole 10 is opened at the position of the one-way inlet valve 9, and an oxygen inhalation tube interface can be connected to the one-way inlet valve 9 during use, and oxygen can directly enter the device.

[0038] At present, the diagnosis of pulmonary tuberculosis requires samples of sputum or lung lavage fluid. Finding tuberculosis bacilli in the samples is a necessary condition for the diagnosis of pulmonary tuberculosis. There is no other method for obtaining samples of pulmonary etiology. This study and device solve the problems of small number of samples, high cost, high difficulty in operation, and high surgical risk in clinical practice. Detecting pathogens from the filter cotton 6 on the device is a brand-new technical solution. This device is similar to the shape of a mask, and the size of the cavity between the one-way air outlet valve 2 and the patient's mouth and nose can be appropriately increased as needed. The droplets containing bacteria are exhaled by the patient's talking, coughing, breathing, etc., and the droplets and bacteria are intercepted by the special filter cotton 6. The pathogens are collected in the filter cotton 6, and finally the filter cotton 6 can be sent for inspection by extracting the collection frame 5.

[0039] The tuberculosis droplet collection device provided by the utility model allows the patient to exhale droplets containing bacteria through talking, coughing, breathing, etc. All exhaled gases pass through a special filter cotton 6, which intercepts droplets and bacteria, and detects bacteria on the filter cotton 6 through molecular biology (Xpert / Xpert ultra / NGS) and other methods, with the purpose of increasing the patient's etiology positive rate. Comparative sputum smear: It solves the problem that patients without sputum cannot obtain samples, increases the time for continuous sampling, and improves the positive rate. Comparative bronchoscopy has the advantages of reducing inspection costs, no surgery and anesthesia, and simple operation. Comparative tongue swab can increase the positive rate.

[0040] The tuberculosis droplet collection device provided by the utility model can be worn for a long time, continuously collects the patient's droplets, increases the time for collecting pathogens, improves the positive detection rate of etiology, treats early, reduces the spread of pulmonary tuberculosis, and is beneficial to the country's prevention and control of respiratory infectious diseases. The device is not expensive, and compared with the bronchoscopic examination method, it reduces medical expenses and saves medical resources. The device does not need to be operated by professionals like a bronchoscope, and the patient wears it by himself, reducing labor costs.

[0041] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A tuberculosis droplet collection device, comprising a mask body (1), a one-way air outlet valve (2) and an ear hook (3), wherein the one-way air outlet valve (2) is installed at a position of the mask body (1) corresponding to the mouth and nose, and the ear hook (3) is connected to two edge sides of the mask body (1), characterized in that: The invention also comprises a foam collecting mechanism, the foam collecting mechanism comprising a mounting frame (4) and a collecting component, the mounting frame (4) being mounted on the inner side of the mask body (1) at a position corresponding to the one-way air outlet valve (2), one side of the mounting frame (4) passing through the mask body (1), and an end face of the mounting frame (4) located outside the mask body (1) being provided with a sliding cavity extending along the length direction of the mounting frame (4) and open toward one side of the end face, the collecting component being slidably arranged in the concave cavity along the length direction of the mounting frame (4), and the collecting component being used to collect the patient's droplets.

2. A tuberculosis droplet collection device according to claim 1, characterized in that: The collection component comprises a collection frame (5) and filter cotton (6), wherein the filter cotton (6) is arranged in the middle of the collection frame (5) and is used to collect the patient's droplets, the collection frame (5) is slidably connected and can be received in a concave cavity of the mounting frame (4), and the filter cotton (6) covers the one-way air outlet valve (2).

3. A tuberculosis droplet collection device according to claim 2, characterized in that: The side wall of the collecting frame (5) is provided with an elastic protrusion (7), and the inner side wall of the concave cavity is provided with a clamping groove corresponding to the elastic protrusion (7).

4. A tuberculosis droplet collection device according to claim 2, characterized in that: A protrusion (8) is provided at one end of the collecting frame (5) away from the mounting frame (4).

5. A tuberculosis droplet collection device according to claim 1, characterized in that: A one-way air inlet valve (9) is provided at a position of the mask body (1) corresponding to the mouth and nose, and the one-way air inlet valve (9) is located on one side of the one-way air outlet valve (2).

6. A tuberculosis droplet collection device according to claim 5, characterized in that: The one-way air intake valve (9) is provided with a through hole (10).

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