Digestive tract infectious disease sample collection and harmless disinfection device

Abstract

The utility model relates to a digestive tract infectious disease sample collection and harmless disinfection device, and relates to the technical field of medical instruments, the digestive tract infectious disease sample collection and harmless disinfection device comprises: a sample collection box, a sample collection cavity is formed in the sample collection box, and a sample is placed in the sample collection cavity of the sample collection box; the sample diluting box is mounted on the sample collecting box, a sample diluting cavity is formed in the sample diluting box, and a diluent is stored in the sample diluting cavity; the sample culture box is mounted on the sample collection box, a sample culture cavity is formed in the sample culture box, and an excrement sample is cultured in the sample culture cavity; the isolation assembly is used for realizing conduction or closing of the sample collection box, the sample dilution box and the sample culture box. According to the invention, the contact between the excrement sample and air, environment and personnel in a laboratory in the collection and analysis process can be reduced, the propagation path is cut off, and the biological safety is effectively ensured.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a digestive tract infectious disease sample collection and harmless disinfection device. Background Art

[0002] At present, gastrointestinal infectious diseases are a type of disease that is transmitted through the patient's excrement, mainly including bacillary dysentery, amoebic dysentery, rotavirus enteritis, hand, foot and mouth disease, cholera, typhoid fever, etc. When a patient is suspected of having these diseases, stool culture is a commonly used diagnostic method. The purpose of stool culture is to detect whether there are pathogenic microorganisms, such as bacteria, viruses, parasites, etc. in the patient's feces. Through stool culture, the type and quantity of pathogens can be determined, thereby providing a strong basis for doctors to diagnose and treat diseases. Therefore, the clinical significance of stool examination and culture is very large, which directly reflects the functions of various organs of the human digestive system and the source of outbreaks of some infectious diseases.

[0003] Fecal culture requires patients to collect stool samples themselves. In order to facilitate the collection of samples by ordinary people, hospital laboratories mostly use conventional open collection cups.

[0004] This type of collection cup does not have an environmental isolation function and can easily cause environmental pollution during sample handover. In addition, the excess fecal samples lack effective harmless disinfection and can easily cause secondary contamination by pathogenic bacteria during waste disposal.

[0005] The existing Chinese patent with announcement number CN106033033B discloses a device for collecting samples, including a component for collecting samples, and the device for collecting samples also includes a rotating component and a hollow cavity; the open end of the cavity is connected to the rotating component, and the bottom of the cavity is connected to the component for collecting samples, the rotating component and the cavity are detachably connected, wherein the rotating component has a through hole, and the through hole is connected to the cavity; the through hole on the rotating component is sealed.

[0006] In the process of culturing feces using the above-mentioned sample collection device, the experimenter needs to open the bottle, take out the feces in the bottle and place it in a culture dish for feces culture. Then, during the process of taking out the feces, if there are some highly infectious bacteria in the feces, the feces will come into contact with the air, environment, medical equipment, etc. in the laboratory, increasing the chance of human infection and environmental pollution.

[0007] Therefore, the collection and cultivation of feces has become an urgent problem to be solved in sample analysis experiments. Utility Model Content

[0008] The technical problem to be solved by the utility model is to provide a digestive tract infectious disease sample collection and harmless disinfection device, which solves the technical problem.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A digestive tract infectious disease sample collection and harmless disinfection device, comprising: a sample collection box, a sample collection cavity is formed in the sample collection box, and a sample is placed in the sample collection cavity of the sample collection box; a sample dilution box is installed on the sample collection box, a sample dilution cavity is formed in the sample dilution box, and a diluent is stored in the sample dilution cavity; a sample culture box is installed on the sample collection box, a sample culture cavity is formed in the sample culture box, and a fecal sample is cultured in the sample culture cavity; an isolation component, the isolation component realizes the conduction or closure of the sample collection box, the sample dilution box and the sample culture box.

[0011] Through the above technical solution, the sample collection box, the sample dilution box and the sample culture box are assembled. When in use, the patient separates the sample collection box from the sample dilution box, and then places the stool sample in the sample collection cavity of the sample collection box, and then installs the sample dilution box on the sample collection box. The isolation component realizes the conduction between the sample collection box and the sample culture box, and the stool sample enters the sample culture cavity of the sample culture box. Then the isolation component seals the sample collection box and the sample culture box, and then the stool sample is cultured in the sample culture box. Subsequently, the isolation component conducts the sample collection box with the sample dilution box, and the diluent in the sample dilution box enters the sample collection box to dilute the stool sample. After the dilution is completed, the medical staff takes out the diluent to complete the microscopic examination of the sample. This reduces the contact of the stool sample with the air in the laboratory during the collection and analysis process, causing environmental pollution.

[0012] Furthermore, the isolation assembly includes a blocking plate, which is detachably installed in the sample collection cavity; a sealing plate is installed on the sample dilution box, and a through groove is provided on the sealing plate, and the through groove is connected to the sample dilution cavity; a barrier film is provided on the sealing plate, and the barrier film covers the through groove of the sealing plate; a convex rod is provided on the blocking plate, one end of the convex rod is connected to the blocking plate, and the other end extends to a side close to the through groove; a dilution hole is provided on the convex rod, and the dilution hole connects the through groove and the sample collection cavity.

[0013] Through the above technical solution, the barrier plate seals the sample collection box, and the sealing plate and the barrier film seal the sample dilution box. When the stool sample in the sample collection box needs to be diluted, the sample dilution box is moved to the side close to the sample collection box. At this time, the convex rod on the barrier plate punctures the barrier on the sealing plate. After the barrier film is punctured, the diluent in the sample dilution chamber flows into the sample collection box through the dilution hole on the convex rod to dilute the stool sample, thereby reducing the contact between medical staff and stool samples during the sample dilution process.

[0014] Furthermore, a quantitative pump is provided on the sample dilution box, and the quantitative pump is installed on the sample dilution box. A liquid guide tube is installed on the quantitative pump, one end of the liquid guide tube is connected to the quantitative pump, and the other end passes through the sealing plate and the barrier plate in sequence, and the liquid guide tube passes through one end of the barrier plate and extends to the sample collection cavity.

[0015] Through the above technical solution, the metering pump is installed on the sample dilution box, and the catheter on the metering pump is inserted into the sample collection box. After the stool sample is diluted, the metering pump is pressed to pump an appropriate amount of stool sample dilution liquid out of the sample collection box, and the medical staff observes the pumped dilution liquid under a microscopic examination.

[0016] Furthermore, a culture dish is placed in the sample culture box, and culture medium is placed in the culture dish. A through hole is opened on the sample collection box, and the through hole connects the sample collection cavity and the sample culture cavity.

[0017] Through the above technical solution, the patient puts the feces into the sample culture box, and then the feces enters the sample culture box through the through hole on the sample collection box for matching.

[0018] Furthermore, the isolation assembly includes an isolation plate, which is rotatably mounted on a side of the sample collection box close to the sample culture box, and a connecting hole is opened on the isolation plate, which connects the through hole and the sample culture chamber.

[0019] Through the above technical solution, the connecting hole on the isolation plate is connected with the through hole on the sample collection box. When the feces sample enters the sample culture box, the blocking plate is rotated, the connecting hole on the blocking plate and the through hole on the sample collection box are misaligned, and the through hole in the sample culture box is closed by the isolation plate.

[0020] Furthermore, a first sealing plate and a first sealing spring are provided on the sample collection box, the first sealing plate is embedded in the connecting hole, and the first sealing spring is pressed tightly between the sample culture box and the first sealing plate; a second sealing plate and a second sealing spring are provided on the isolation plate, the second sealing plate seals the through hole, and the second sealing spring is pressed tightly between the isolation plate and the second sealing plate.

[0021] Through the above technical solution, when the isolation plate blocks the through hole on the sample collection box, the first blocking spring presses the first blocking plate against the connecting hole of the isolation plate, and the first blocking plate pushes the feces sample in the connecting hole toward the sample culture box. At the same time, the second blocking spring pushes the feces sample in the through hole of the sample collection box into the sample sampling box through the second blocking plate.

[0022] Furthermore, a connecting rod is provided on the sample culture box, a connecting groove is provided on the isolation plate, one end of the connecting rod is connected to the sample culture box, and the other end thereof penetrates into the connecting groove.

[0023] Through the above technical solution, one end of the connecting rod on the sample culture box is inserted into the connecting groove of the isolation plate, so that during the rotation of the sample culture box, the isolation plate can also be rotated on the sample sampling box, thereby improving the convenience of rotating the isolation plate on the sample sampling box.

[0024] A harmless disinfection device for a digestive tract infectious disease sample collection device comprises an isolation box, a collection box is arranged in the isolation box, a disinfection box is installed on the isolation box, a collection pipe is arranged between the disinfection box and the collection box, the two ends of the collection pipe are respectively connected to the disinfection box and the collection box, a heating ring is arranged in the disinfection box, and the heating ring heats the inside of the disinfection box; the digestive tract infectious disease sample collection device as described above is placed in the disinfection box.

[0025] Through the above technical solution, the sampling device is placed in the disinfection box. After the sampling device is disinfected in the disinfection box, it falls into the collection box of the isolation box through the collection pipe, thereby improving the convenience of disinfection of the sampling device and reducing the contact between medical staff and the sampling device.

[0026] Furthermore, a support plate is provided on the isolation box, the support plate is slidably installed on the collection pipe, and the support plate blocks the collection pipe. A driving cylinder is installed on the isolation box, and a piston rod of the driving cylinder is connected to the support plate.

[0027] Through the above technical solution, the support plate supports the sampling device. When the sampling device is disinfected, the driving cylinder drives the support plate to slide, so that the sampling device can fall into the collection box through the collection pipe.

[0028] Furthermore, a spray pipe is installed on the isolation box, and a spray head is formed on the spray pipe. A number of spray heads are evenly distributed on the spray pipe, and one end of the several spray heads are inserted into the collecting pipe. The several spray heads form a spray curtain in the collecting pipe, and the spray curtain blocks the disinfection box and the collection box.

[0029] Through the above technical solution, when the support plate opens the collection pipe, the spray head on the spray pipe sprays disinfectant water into the collection pipe, thereby reducing the collection device that is not completely disinfected in the collection box from flowing back into the disinfection box through the collection pipe.

[0030] In summary, the present application includes at least one of the following beneficial technical effects of the digestive tract infectious disease sample collection and harmless disinfection device:

[0031] 1. Assemble the sample collection box, sample dilution box and sample culture box. When using, the patient separates the sample collection box from the sample dilution box, and then places the stool sample in the sample collection cavity of the sample collection box. Then, install the sample dilution box on the sample collection box. The isolation component realizes the conduction between the sample collection box and the sample culture box. The stool sample enters the sample culture cavity of the sample culture box. Then, the isolation component seals the sample collection box and the sample culture box. Then, the stool sample is cultured in the sample culture box. Subsequently, the isolation component conducts the sample collection box and the sample dilution box. The diluent in the sample dilution box enters the sample collection box to dilute the stool sample. After the dilution is completed, the medical staff takes out the diluent to complete the microscopic examination of the sample. This reduces the contact between the stool sample and the laboratory environment during the collection and analysis process, ensuring biosafety.

[0032] 2. Through the convex rod and the dilution hole on the convex rod, the diluent in the sample dilution box can flow into the sample culture box, reducing the contact between medical staff and samples;

[0033] 3. Through the setting of culture dishes and quantitative pumps, stool samples can be examined and cultured simultaneously, reducing the contact between medical staff and samples during the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a digestive tract infectious disease sample collection device mainly embodied in the first embodiment;

[0035] Figure 2 This is an exploded schematic diagram of the sample collection box structure mainly embodied in the first embodiment;

[0036] Figure 3 This is a cross-sectional view of the structure of the sample collection box mainly embodied in the first embodiment;

[0037] Figure 4 yes Figure 3 An enlarged schematic diagram of a local portion A;

[0038] Figure 5 This is a schematic diagram of an explosion of the sample culture box structure mainly embodied in the first embodiment;

[0039] Figure 6 This is a schematic diagram of the structure of the disinfection device mainly embodied in the second embodiment;

[0040] Figure 7 It is a cross-sectional view of the isolation box structure mainly embodied in the second embodiment.

[0041] Reference numerals:

[0042] 1. Sample dilution box; 11. Sample dilution chamber; 12. Dosing pump; 121. Liquid guide tube; 2. Sample collection box; 21. Sample collection chamber; 22. Card slot; 23. Through hole; 3. Sample culture box; 31. Card block; 32. Sample culture chamber; 33. Culture dish; 34. Connecting rod; 4. Isolation assembly; 41. Blocking plate; 411. Protruding rod; 412. Spike; 413. Dilution hole; 42. Ring; 43. Rubber ring; 44. Sealing plate ; 441, through groove; 442, barrier membrane; 45, isolation plate; 451, connecting hole; 452, connecting groove; 46, first blocking plate; 461, first blocking spring; 47, second blocking plate; 471, second blocking spring; 5, isolation box; 51, disinfection box; 511, heating ring; 52, collection box; 53, collection pipe; 54, support plate; 541, driving cylinder; 55, spray pipe; 551, spray head; 552, spray curtain. DETAILED DESCRIPTION

[0043] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0044] The following is combined with Figure 1-7 This application is described in further detail.

[0045] The embodiment of the present application discloses a digestive tract infectious disease sample collection and harmless disinfection device.

[0046] Reference Figure 1 A digestive tract infectious disease sample collection device includes a sample collection box 2, a sample dilution box 1 and a sample culture box 3. When in use, the patient places the fecal sample in the sample collection box 2, part of the sample enters the sample culture box 3 for culture, and the other part of the sample is diluted by the sample dilution box 1.

[0047] Reference Figure 2-Figure 3 The sample collection box 2 is cylindrical in shape as a whole, and a sample collection cavity 21 is formed in the sample culture box 3. The sample dilution box 1 is cylindrical in shape as a whole, and the axis of the sample dilution box 1 is coaxial with the axis of the sample collection box 2. A sample dilution cavity 11 is formed on one side of the sample dilution box 1 close to the sample collection box 2, and the sample dilution cavity 11 is connected to the sample collection cavity 21.

[0048] Furthermore, the sample collection box 2 is provided with an isolation component 4, which includes a blocking plate 41, which is in the shape of a circular plate as a whole. A ring 42 is provided in the sample collection box 2, and the ring 42 is fixed in the sample collection box 2. When in use, the blocking plate 41 is placed on the ring 42. When the patient needs to place feces in the sample collection box 2, the blocking plate 41 is removed from the ring 42. After the fecal sample is placed in the sample collection box 2, the blocking plate 41 is re-placed on the ring 42.

[0049] The side of the sample dilution box 1 close to the sample collection box 2 is threadedly connected to the sample collection box 2, and a rubber ring 43 is provided between the sample dilution box 1 and the sample collection box 2, and the rubber ring 43 is pressed tightly between the sample dilution box 1 and the sample collection box 2. By pressing the rubber ring 43 between the sample collection box 2 and the sample dilution box 1, on the one hand, the stability of the connection between the sample collection box 2 and the sample dilution box 1 is improved, and on the other hand, the sealing between the sample collection box 2 and the sample dilution box 1 is improved.

[0050] A sealing plate 44 is provided on the side of the sample dilution box 1 close to the sample collection box 2, and the sealing plate 44 is fixedly mounted on the sample dilution box 1. A through slot 441 is provided on the sealing plate 44, and four through slots 441 are provided at intervals on the sealing plate 44, and the four through slots 441 pass through both sides of the thickness direction of the sealing plate 44. A barrier film 442 is provided on the side of the sealing plate 44 close to the sample collection box 2, and the sample dilution chamber 11 of the sample dilution box 1 is filled with diluent, and the barrier film 442 covers the through slot 441 of the sealing plate 44, and the barrier film 442 seals the diluent in the sample collection chamber 21.

[0051] The barrier plate 41 is provided with a convex rod 411, and a plurality of convex rods 411 are evenly spaced on the barrier plate 41, one end of each of the convex rods 411 is connected to the barrier plate 41, and the other end extends to the side close to the sealing plate 44. A spike portion 412 is formed at one end of the convex rod 411 close to the sealing plate 44, and a dilution hole 413 is formed on the convex rod 411, and the dilution hole 413 penetrates the convex rod 411 and the barrier plate 41. When in use, the sample dilution box 1 is rotated, and as the sample dilution box 1 is rotated, the spike portion 412 of the convex rod 411 pierces the barrier film 442, and after the convex rod 411 pierces the barrier film 442, the diluent in the sample dilution box 1 flows into the sample collection chamber 21 through the dilution hole 413, and the stool sample is diluted by the diluent.

[0052] After the stool sample is diluted, in order to take out the diluent from the sample dilution box 1, a quantitative pump 12 is provided on the sample dilution box 1, and the quantitative pump 12 is threadedly connected to the sample dilution box 1. A liquid guide tube 121 is provided on the quantitative pump 12, one end of the liquid guide tube 121 is connected to the quantitative pump 12, and the other end passes through the sealing plate 44 and the blocking plate 41 in sequence, and one end of the liquid guide tube 121 passes through the blocking plate 41 and extends into the sample collection cavity 21.

[0053] When the stool sample is diluted, the metering pump 12 is pressed, and the diluent in the sample collection chamber 21 is taken out by the metering pump 12 through the liquid guide tube 121, and the taken out diluent is used as a microscopic examination material. By diluting, the density of microorganisms in the sample can be reduced to a level that can be effectively observed and analyzed. This helps to more clearly observe the morphology, structure and quantity of microorganisms during the microscopic examination, thereby more accurately diagnosing possible pathogens or pathological conditions.

[0054] Reference Figure 4 The sample culture box 3 is located on the side of the sample collection box 2 opposite to the sample dilution box 1. The sample collection box 2 is provided with a card slot 22, which is annular in shape. The sample culture box 3 is provided with a card block 31. When the sample culture box 3 is installed on the sample collection box 2, the card block 31 on the sample culture box 3 is clamped on the card slot 22 of the sample collection box 2.

[0055] Furthermore, a sample culture chamber 32 is formed in the sample collection box 2 . A through hole 23 is formed on the sample collection box 2 . The through hole 23 penetrates the sample collection box 2 , and the through hole 23 communicates the sample dilution chamber 11 with the sample culture chamber 32 .

[0056] A culture dish 33 is installed in the sample culture box 3, and a culture medium is placed in the culture dish 33. When the patient puts the stool sample into the sample collection box 2, part of the stool sample is placed on the culture dish 33 through the through hole 23. After the stool sample is placed on the culture dish 33, the patient shakes the sample culture box 3 to make the culture dish 33 fall off and be placed on the bottom of the sample culture box 3.

[0057] Reference Figure 5 In order to prevent the diluent from flowing into the sample culture box 3 through the through hole 23 and affecting the culture of the stool sample during the dilution process of the stool sample, an isolation plate 45 is provided on the side of the sample collection box 2 close to the sample culture box 3. The isolation plate 45 is rotatably mounted on the sample collection box 2. A connecting hole 451 is provided on the isolation plate 45. The connecting hole 451 runs through both sides of the isolation plate 45 in the thickness direction. When the stool sample needs to be placed in the sample culture box 3, the isolation plate 45 is rotated to connect the connecting hole 451 on the isolation plate 45 with the through hole 23 on the sample collection box 2.

[0058] Furthermore, the sample collection box 2 is provided with a first blocking plate 46 and a first blocking spring 461, and the first blocking spring 461 is pressed tightly between the first blocking plate 46 and the general collection box. The isolation plate 45 is provided with a second blocking plate 47 and a second blocking spring 471, and the second blocking spring 471 is pressed tightly between the second blocking plate 47 and the isolation plate 45.

[0059] The isolation plate 45 is rotated to block the through hole 23 on the sample collection box 2. When the connecting hole 451 on the isolation plate 45 corresponds to the first blocking plate 46, the first blocking plate 46 moves the stool in the connecting hole 451 toward the sample culture box under the action of the first blocking spring 461. The second blocking plate 47 on the isolation plate 45 pushes the stool in the through hole 23 toward the sample collection box 2 under the action of the second blocking spring 471. At the same time, the second blocking plate 47 blocks the through hole 23 on the sample collection box 2.

[0060] In order to improve the convenience of rotating the isolation plate 45 on the sample collection box 2, a connecting rod 34 is provided on the sample culture box 3, one end of the connecting rod 34 is connected to the sample culture box 3, and the other end extends to the side close to the sample collection box 2. A connecting groove 452 is provided on the isolation plate 45, and the connecting groove 452 corresponds to the connecting rod 34. When the sample culture box 3 is installed on the sample collection box 2, the connecting rod 34 on the sample culture box 3 penetrates into the connecting groove 452. When the isolation plate 45 is required to block the through hole 23 on the sample collection box 2, the sample culture box 3 is rotated, and as the sample culture box 3 rotates, the isolation plate 45 rotates on the sample collection box 2.

[0061] Reference Figure 6-Figure 7 A harmless disinfection device for collecting samples of gastrointestinal infectious diseases includes an isolation box 5, a post-disinfection box 51 is arranged on the isolation box 5, a collection box 52 is installed inside the isolation box 5, and a collection pipe 53 is arranged between the disinfection box 51 and the collection box 52 in the isolation box 5, and the two ends of the collection pipe 53 are respectively connected to the disinfection box 51 and the collection box 52. After the collection device is disinfected in the disinfection box 51, it falls into the collection box 52 through the collection pipe 53.

[0062] Furthermore, a heating ring 511 is installed on the disinfection box 51, and the heating ring 511 is spiral-shaped as a whole. When in use, the collection device is placed inside the spiral heating ring 511, and then the heating ring 511 is powered on to perform high-temperature disinfection on the collection device through the heating ring 511. The collection device is made of degradable materials. After high-temperature heating, the collection device will melt, so that the inside of the collection device can also be disinfected by high temperature.

[0063] The isolation box 5 is provided with a support plate 54, which is located on the side of the collection pipe 53 close to the disinfection box 51, and the isolation box 5 is provided with a driving cylinder 541, which is installed on the isolation box 5, and the piston rod of the driving cylinder 541 is connected to the support plate 54. When the collection device is disinfected, the collection device is placed on the support plate 54. After the collection device is disinfected, the driving cylinder 541 drives the support plate 54 to slide to the side away from the collection pipe 53, so that the collection device can pass through the collection pipe 53 and fall into the collection box 52.

[0064] The collection device falls into the collection box 52. If part of the collection device is not completely disinfected, the virus in the collection device will enter the disinfection box 51 along the collection pipe 53. When the disinfection box 51 is opened, the virus will contaminate the air in the laboratory. Therefore, a spray pipe 55 is provided on the disinfection pipe. One end of the spray pipe 55 is connected to the external disinfectant. The spray pipe 55 is formed with a spray head 551. One end of the spray head 551 penetrates into the collection pipe 53. There are several spray heads 551 evenly spaced on the spray pipe 55. Several spray heads 551 spray disinfectant on the collection pipe 53, so that the sprayed disinfectant forms a spray curtain 552. The disinfectant sprayed by the spray head 551 can further disinfect the sampling device on the one hand, and on the other hand, the spray curtain 552 formed by the spraying can reduce the virus from flowing back to the laboratory through the collection pipe 53.

[0065] After the collection box 52 completes the collection of the sampling devices, the medical staff will uniformly recycle the collected sampling devices.

[0066] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A digestive tract infectious disease sample collection device, characterized in that: include: A sample collection box (2), wherein a sample collection cavity (21) is formed in the sample collection box (2), and a sample is placed in the sample collection cavity (21) of the sample collection box (2); A sample dilution box (1), wherein the sample dilution box (1) is mounted on the sample collection box (2), a sample dilution chamber (11) is formed in the sample dilution box (1), and a diluent is stored in the sample dilution chamber (11); A sample culture box (3), the sample culture box (3) being installed on the sample collection box (2), the sample culture box (3) having a sample culture cavity (32) formed therein, and the fecal sample being cultured in the sample culture cavity (32); An isolation component (4), wherein the isolation component (4) realizes the connection or closure of the sample collection box (2), the sample dilution box (1) and the sample culture box (3).

2. A digestive tract infectious disease sample collection device according to claim 1, characterized in that: The isolation assembly (4) comprises a blocking plate (41), the blocking plate (41) being detachably mounted in the sample collection chamber (21), a sealing plate (44) being mounted on the sample dilution box (1), a through groove (441) being formed on the sealing plate (44), and the through groove (441) being in communication with the sample dilution chamber (11); The sealing plate (44) is provided with a barrier film (442), and the barrier film (442) covers the through groove (441) of the sealing plate (44); the barrier plate (41) is provided with a convex rod (411), one end of the convex rod (411) is connected to the barrier plate (41), and the other end extends to a side close to the through groove (441); a dilution hole (413) is provided on the convex rod (411), and the dilution hole (413) connects the through groove (441) and the sample collection cavity (21).

3. A digestive tract infectious disease sample collection device according to claim 2, characterized in that: The sample dilution box (1) is provided with a metering pump (12), the metering pump (12) is installed on the sample dilution box (1), and a liquid guide tube (121) is installed on the metering pump (12), one end of the liquid guide tube (121) is connected to the metering pump (12), and the other end passes through the sealing plate (44) and the blocking plate (41) in sequence, and the liquid guide tube (121) passes through one end of the blocking plate (41) and extends to the sample collection chamber (21).

4. The digestive tract infectious disease sample collection device according to claim 1, characterized in that: A culture dish (33) is placed in the sample culture box (3), and a culture medium is placed in the culture dish (33). A through hole (23) is opened on the sample collection box (2), and the through hole (23) connects the sample collection cavity and the sample culture cavity (32).

5. The digestive tract infectious disease sample collection device according to claim 4, characterized in that: The isolation assembly (4) comprises an isolation plate (45), wherein the isolation plate (45) is rotatably mounted on a side of the sample collection box (2) close to the sample culture box (3), and a connecting hole (451) is provided on the isolation plate (45), wherein the connecting hole (451) connects the through hole (23) and the sample culture chamber (32).

6. The digestive tract infectious disease sample collection device according to claim 5, characterized in that: The sample collection box (2) is provided with a first blocking plate (46) and a first blocking spring (461); the first blocking plate (46) is embedded in the communicating hole (451); and the first blocking spring (461) is pressed tightly between the sample culture box (3) and the first blocking plate (46); A second blocking plate (47) and a second blocking spring (471) are provided on the isolation plate (45); the second blocking plate (47) blocks the through hole (23); and the second blocking spring (471) is pressed tightly between the isolation plate (45) and the second blocking plate (47).

7. The digestive tract infectious disease sample collection device according to claim 6, characterized in that: The sample culture box (3) is provided with a connecting rod (34), the isolation plate (45) is provided with a connecting groove (452), one end of the connecting rod (34) is connected to the sample culture box (3), and the other end penetrates into the connecting groove (452).

8. A harmless disinfection device for collecting samples of digestive tract infectious diseases, characterized in that: The invention comprises an isolation box (5), wherein a collecting box (52) is arranged inside the isolation box (5), a disinfection box (51) is installed on the isolation box (5), a collecting pipe (53) is arranged between the disinfection box (51) and the collecting box (52), and the two ends of the collecting pipe (53) are respectively connected to the disinfection box (51) and the collecting box (52), and a heating ring (511) is arranged inside the disinfection box (51), and the heating ring (511) heats the inside of the disinfection box (51); a digestive tract infectious disease sample collection device as described in claims 1 to 7 is placed in the disinfection box (51).

9. The harmless disinfection device for collecting samples of digestive tract infectious diseases according to claim 8, characterized in that: The isolation box (5) is provided with a support plate (54), the support plate (54) is slidably mounted on the collection pipe (53), and the support plate (54) blocks the collection pipe (53). The isolation box (5) is provided with a driving cylinder (541), and the piston rod of the driving cylinder (541) is connected to the support plate (54).

10. The harmless disinfection device for collecting samples of digestive tract infectious diseases according to claim 9, characterized in that: A spray pipe (55) is installed on the isolation box (5), and a spray head (551) is formed on the spray pipe (55). A plurality of the spray heads (551) are evenly distributed on the spray pipe (55), and one end of the plurality of the spray heads (551) is inserted into the collection pipe (53). The plurality of the spray heads (551) form a spray curtain (552) in the collection pipe (53), and the spray curtain (552) blocks the disinfection box (51) and the collection box (52).

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