CN116948800A - A gastrointestinal flora sampling device - Google Patents

Abstract

The invention discloses a gastrointestinal flora sampling device. The invention relates to the technical field of flora sampling and includes a handle barrel. The left end of the handle barrel is threaded with a central socket. The left end of the central socket is threaded with a thread. Disposable sterilization sleeve, completely transparent. This gastrointestinal flora sampling device can accurately impact the compression beads after the top beads sag due to inertia and are bounced upward by the trigger spring to achieve rapid crushing of thin glass explosive beads, thereby releasing the low-temperature particles inside. concentration of chlorine dioxide to automatically achieve rapid sterilization and disinfection of the interior of the disposable sterilization sleeve. By utilizing the good biodegradability of the polylactic acid scoop, it can be completely degraded by microorganisms in nature after use, ultimately generating carbon dioxide and Water does not pollute the environment and does not contaminate the bacterial flora of the sample. It reduces the steps of separately processing polylactic acid scoops and improves the efficiency of sampling and testing the bacterial flora of the sample.

Description

A gastrointestinal flora sampling device

Technical field

The present invention relates to the technical field of flora sampling, specifically a gastrointestinal flora sampling device.

Background technique

There are currently two main methods for sampling gastrointestinal flora: non-invasive sampling and invasive sampling. Non-invasive sampling: This method is suitable for general flora research; common non-invasive sampling methods include: fecal sample collection : By collecting fresh stool samples from individuals for analysis, this method is simple and easy to do, does no harm to the individual, and can obtain more comprehensive information on intestinal flora; Electronic bedpan sampling: By using an electronic bedpan with a urine collection cup, Relatively pure fecal samples can be collected; invasive sampling: This method is suitable for some special flora research. Common invasive sampling methods include: colonoscopy sampling and small intestinal puncture; however, no matter which method is used, it is necessary to maintain Samples are processed as soon as possible after collection, and the requirements for disinfection and aseptic operation are strictly followed to ensure the accuracy and reliability of the bacterial flora.

The existing gastrointestinal flora sampling device itself does not have the function of anti-falling and self-disinfection, and cannot quickly sterilize accidentally contaminated sampling devices or scattered samples to prevent the spread or leakage of sample bacteria. During the sampling process, it is often necessary to scrape the sample off the scoop bit by bit, which is time-consuming and labor-intensive. There is also the risk of sample contamination, and the detection efficiency of the sample flora is low.

Contents of the invention

In order to achieve the above objects, the present invention is realized through the following technical solutions: a gastrointestinal flora sampling device, including a handle tube, the left end of the handle tube is threadedly installed with a central socket, and the left end of the central socket is threadedly installed There is a disposable sterilization sleeve, which is transparent as a whole. It is convenient to observe the real-time situation of the samples collected inside the disposable sterilization sleeve, so as to decide whether to continue using or sterilizing the samples. The disposable sterilization The left end of the sleeve is threaded with a disposable sterilization cover, which is used to close and block the left end of the disposable sterilization sleeve;

It also includes a sampling assembly, which is assembled on the inside of the handle tube and can telescopically move left and right on the inside of the handle tube;

Sterilization assembly, which is installed on the inner wall of the central barrel. The sterilization assembly includes a one-way injection tube installed inside the left end of the handle barrel, with one end exposed on the outer surface of the handle barrel, and the other end inserted in the center. on the inner wall of the adapter and extends into the inner cavity of the central adapter.

Preferably, a hanging ear is symmetrically connected to the outer surface of the handle barrel and is located at the right end away from the central barrel. A first threaded ring is fixedly connected to the middle part of the left end of the handle barrel, and the middle part of the left end of the handle barrel is also fixed. A second threaded ring is connected and covers the outside of the first threaded ring. The handle tube is threadedly installed with the central socket through the first threaded ring and the second threaded ring.

Preferably, a central compartment is provided at the left end of the handle barrel and is located between the first threaded ring and the second threaded ring to protect the inner cavity of the vacuumed handle barrel in a sterile state at all times, thus avoiding the possibility of The attachment of bacteria to the surface of the long probe eliminates the risk of contamination of the sample by bacteria in the inner cavity of the handle tube through the long probe.

Preferably, a first rotating shaft is installed in the middle of one end of the handle barrel away from the central receiving barrel, a second rotating shaft is installed in the middle of the right end of the central receiving barrel, and a sterile envelope is fitted and installed on the inside of the second rotating shaft, so The sterile envelope is rotatably installed with the central receiving barrel through the second rotating shaft. The edges of the inner cavity of the central receiving barrel are provided with rounded portions to reduce the dead angle of the inner cavity of the central receiving barrel and prevent bacteria from colonizing the inner wall of the central receiving barrel. Massive attachment.

Preferably, a vacuum valve tube is installed on the left end of the handle barrel and penetrates the second threaded ring and extends into the inside of the central compartment, and a one-way valve is provided on the inner wall of the first threaded ring at a position corresponding to the central compartment. The hole is used to guide the air inside the handle tube through the central compartment and the vacuum valve tube and extract it in one direction so that the inside of the handle tube is always in a vacuum state. A balance plate is fixedly connected to the outer surface of the handle tube. And the side facing away from the vacuum valve tube allows the handle tube to be placed horizontally on the test bench to prevent the entire sampling device from rolling or shaking.

Preferably, the sampling assembly includes a long probe rod that is rotatably installed through a first rotating shaft and a handle barrel. A disc is fixedly mounted on the outer surface of the long probe rod and is disposed close to the first rotating shaft. The long probe rod An extrusion spring is set on the outer surface of the long probe rod, and a baffle is set on the outer surface of the long probe rod. The extrusion spring is installed between the disc and the baffle, and one end is fixedly connected to the disc, and the other end is connected to the disc. The baffle is fixedly connected, and the baffle is fitted and installed in the inner wall of the handle tube. The long probe rod is elastically installed with the handle tube through the extrusion spring and the baffle.

Preferably, the middle part of the left end of the long probe rod is fixedly connected with a barb and tilted to the right. An annular capsule is installed on the outer surface of the long probe rod. The left end of the long probe rod is equipped with a polylactic acid excavator. Spoon, the polylactic acid scoop is installed by being fastened with the long probe rod through barbs. The end of the polylactic acid scoop away from the long probe rod is symmetrically connected with convex thorns on both sides, which can detect the sample wrapped in the sterile bag. Carry out auxiliary bag breaking sampling.

Preferably, the left end of the annular capsule is fixedly installed with a positioning ring, and the right end of the annular capsule is fixedly installed with an extension plug ring. The annular capsule is installed in combination with the positioning ring and the long probe rod, and the extension plug ring It can be fitted and installed in the groove where the second rotating shaft and the sterile envelope are assembled, and the annular capsule is used to shield the left end of the second rotating shaft, providing a double bactericidal structure to prevent the disposable sterilization sleeve after collecting the sample. The long probe rod contaminates the inner cavity of the central barrel and the handle barrel, reducing the steps of separately handling the polylactic acid scoop, and improving the efficiency of sampling and testing the sample flora.

Preferably, a guide block is fixedly connected to the inner wall surface of the handle barrel and is located at the left end. The one-way injection pipe is provided through the middle of the guide block to support and guide the middle part of the one-way injection pipe. One end of the one-way injection tube extending into the inner cavity of the central socket is threaded with a thin glass explosive bead, and the interior is filled with low-concentration chlorine dioxide, which is used to sterilize and deodorize contaminated samples. The thin glass explosive beads are There are compression beads installed in the middle of the outer surface to facilitate crushing of thin glass blast beads.

Preferably, a hemisphere is fixedly installed on the inner wall of the central socket, and a top bead is installed on the side of the hemisphere away from the inner wall of the central socket. A trigger spring is connected between the top bead and the hemisphere. The top bead is triggered by The spring is elastically connected to the hemisphere, and the top of the top bead matches the compression bead, but does not contact. It is used to trigger the spring to bounce upward after the top bead sags due to inertia when the sampling device falls to the ground or suffers a frontal impact from an external force. When moving, the compression beads are accurately impacted to quickly crush the thin glass beads, thereby releasing the low concentration of chlorine dioxide inside to automatically achieve rapid sterilization and disinfection of the interior of the disposable sterilization sleeve.

The invention provides a gastrointestinal flora sampling device, which has the following beneficial effects:

1. This gastrointestinal flora sampling device, when the sampling device falls to the ground or suffers a frontal impact from an external force, can use the top beads to accurately impact the compression beads after sagging due to inertia and being bounced upward by the trigger spring to achieve explosion of thin glass. The beads are quickly crushed to release the low-concentration chlorine dioxide inside, which automatically realizes rapid sterilization and disinfection of the interior of the disposable sterilization sleeve, making the sampling device equipped with anti-fall and self-disinfection protection functions.

2. This gastrointestinal flora sampling device takes advantage of the good biodegradability of the polylactic acid scoop itself. After use, it can be completely degraded by microorganisms in nature, eventually generating carbon dioxide and water, without polluting the environment. The bacterial flora of the sample reduces the need for separate processing of polylactic acid scoops and improves the efficiency of sampling and testing the bacterial flora of the sample.

3. The gastrointestinal flora sampling device can be installed in the groove of the second rotating shaft and the sterile envelope by extending the stopper ring, and uses the annular capsule to cover the left end of the second rotating shaft, combined with the sterile The envelope effectively blocks bacteria and jointly provides a double bacteriostatic structure to prevent the disposable sterilization sleeve after collecting the sample from contaminating the inner cavity of the central receiving sleeve and the handle sleeve through the long probe rod, making it easier to replace the disposable sterilization sleeve with a new one. After the sterilization sleeve and the disposable sterilization cap are sealed, the handle barrel and the central adapter can be used continuously and safely to ensure that the previous sampling process will not interfere with the next sampling result, and to realize the recycling of the main body of the sampling device, which can The most contaminated parts are directly discarded, and the operating parts are reused, which not only reduces the waste of resources, but also makes the medical staff more comfortable in using the sampling device.

4. This gastrointestinal flora sampling device uses the central compartment as a buffer isolation zone to create a sterile environment in the inner cavity of the handle barrel. It is used to isolate the bacteria extracted from the inside of the handle barrel inside the central compartment to prevent the passage of vacuum. When the valve tube evacuates the inner cavity of the handle barrel, a small number of bacteria or impurities remain in the inner cavity of the handle barrel to protect the vacuumed inner cavity of the handle barrel and keep it in a sterile state at all times, thus avoiding the possibility of bacteria probing for a long time. The attachment to the surface of the rod eliminates the risk of contamination of the sample by bacteria in the inner cavity of the handle tube through the long probe rod.

5. This gastrointestinal flora sampling device continuously injects a large amount of low-concentration chlorine dioxide into the disposable sterilization sleeve through a one-way injection tube to ensure the detection of excess samples inside the disposable sterilization sleeve. Fully sterilized and disinfected to prevent samples from contaminating the inner wall of the disposable sterilization sleeve after being dropped or impacted by external forces, and then contaminating the working environment. Bacteria in the sample are eliminated in advance inside the disposable sterilization sleeve to facilitate replacement. New disposable sterilization sleeve and disposable sterilization cover; at the same time, simply flush the inner cavity of the central receiving tube with sterilizing water to start the next sampling operation again.

Description of the drawings

Figure 1 is a schematic diagram of the disassembled structure of a gastrointestinal flora sampling device according to the present invention;

Figure 2 is a schematic diagram of the internal structure of the handle barrel of the present invention;

Figure 3 is a schematic diagram of the assembly structure of the disposable sterilization sleeve of the present invention through the central socket and the handle sleeve;

Figure 4 is a schematic diagram of the internal structure of the disposable sterilization sleeve of the present invention;

Figure 5 is a schematic diagram of the partial assembly structure of the central barrel and the handle barrel of the present invention;

Figure 6 is a schematic diagram of the disassembled structure of the polylactic acid scoop and long probe of the present invention;

Figure 7 is a schematic diagram of the bottom structure of the handle barrel of the present invention;

Figure 8 is a schematic diagram of the external structure of a gastrointestinal flora sampling device according to the present invention.

In the picture: 1. Handle barrel; 2. Sampling assembly; 21. Long probe; 22. Disc; 23. Squeeze spring; 24. Baffle; 25. Barb; 26. Ring capsule; 27. Polymer Lactic acid scoop; 28. Protruding thorn; 29. Positioning ring; 210. Extended plug ring; 3. Central adapter; 4. Sterilization assembly; 41. One-way injection tube; 42. Guide block; 43. Thin glass explosion beads ; 44. Compression bead; 45. Hemisphere; 46. Top bead; 47. Trigger spring; 5. Disposable sterilization sleeve; 6. Disposable sterilization cap; 7. Hanging ear; 8. First threaded ring; 9. Second threaded ring; 10. Central compartment; 11. First rotating shaft; 12. Second rotating shaft; 13. Sterile envelope; 14. Rounded portion; 15. Vacuum valve tube; 16. Balance plate.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are presented for the purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention and design various embodiments with various modifications as are suited to the particular use contemplated.

First Embodiment, as shown in Figures 1 to 8, the present invention provides a technical solution: a gastrointestinal flora sampling device, including a handle barrel 1, and a central socket 3 is threadedly installed on the left end of the handle barrel 1. A disposable sterilization sleeve 5 is installed on the thread at the left end of the central socket 3, and a disposable sterilization cover 6 is installed on the thread at the left end of the disposable sterilization sleeve 5, which is used to perform sterilization on the left end of the disposable sterilization sleeve 5. Close occlusion;

It also includes a sampling assembly 2, which is assembled inside the handle tube 1 and can telescopically move left and right inside the handle tube 1;

Sterilization assembly 4. The sterilization assembly 4 is installed on the inner wall of the central socket 3. The sterilization assembly 4 includes a one-way injection tube 41 installed inside the left end of the handle barrel 1, and one end is exposed on the outer surface of the handle barrel 1. One end is inserted into the inner wall of the central socket 3 and extends into the inner cavity of the central socket 3 .

A hanging ear 7 is symmetrically connected to the outer surface of the handle tube 1 and is located at the right end away from the central socket 3. A first threaded ring 8 is fixedly connected to the middle part of the left end of the handle tube 1, and a third threaded ring 8 is fixedly connected to the middle part of the left end of the handle tube 1. Two threaded rings 9 cover the outside of the first threaded ring 8. The handle tube 1 is threadedly installed with the central socket 3 through the first threaded ring 8 and the second threaded ring 9.

A central compartment 10 is provided at the left end of the handle barrel 1 and is located between the first threaded ring 8 and the second threaded ring 9 to prevent a small number of bacteria or impurities from being released when the inner cavity of the handle barrel 1 is evacuated through the vacuum valve tube 15 remain in the inner cavity of the handle barrel 1.

A first rotating shaft 11 is installed in the middle of the end of the handle barrel 1 away from the central receiving barrel 3. A second rotating shaft 12 is installed in the middle of the right end of the central receiving barrel 3. A sterile envelope 13 is installed on the inner side of the second rotating shaft 12. The sterile envelope 13. The second rotating shaft 12 is rotated with the central adapter 3. A rounded portion 14 is provided at the edge of the inner cavity of the central adapter 3 to reduce the dead space in the inner cavity of the central adapter 3 and prevent bacteria from growing on the inner wall of the central adapter 3. A lot of attachment.

A vacuum valve tube 15 is installed on the left end of the handle barrel 1, and penetrates the second threaded ring 9 and extends into the inside of the central compartment 10, and a one-way valve is provided on the inner wall of the first threaded ring 8 at a position corresponding to the central compartment 10. The valve hole is used to guide the air inside the handle barrel 1 through the central compartment 10 and the vacuum valve tube 15 and extract it in one direction, so that the inside of the handle barrel 1 is always in a vacuum state, and the outer surface of the handle barrel 1 is fixedly connected There is a balance plate 16, and it is arranged on the side facing away from the vacuum valve tube 15.

When in use, twist off the disposable sterilization cover 6, press the hanging ear 7 with your fingers, press the long probe 21, use the polylactic acid scoop 27 to dig out an appropriate amount of sample, take it back into the disposable sterilization sleeve 5, store it separately, and store it again The disposable sterilization cover 6 is sealed. After reaching the sterile operating environment, the disposable sterilization cover 6 is opened, and the polylactic acid scoop 27 is directly bent in the inclined direction of the barb 25 to scoop out the polylactic acid. The spoon 27 is removed together with the sample, no hand contact is required, and it can be operated with one hand, thereby eliminating contamination of the sample flora, avoiding excessive instrument contact, and reducing cleaning and equipment losses.

The central compartment 10 is used as a buffer isolation zone to create a sterile environment in the inner cavity of the handle barrel 1. It is used to isolate the bacteria extracted from the inside of the handle barrel 1 inside the central compartment 10 and prevent the inside of the handle barrel 1 from being exposed through the vacuum valve tube 15. When the cavity is evacuated, a small number of bacteria or impurities remain in the inner cavity of the handle barrel 1 to protect the vacuumed inner cavity of the handle barrel 1 and keep it in a sterile state at all times, thereby avoiding the presence of bacteria on the surface of the long probe rod 21 Attachment eliminates the potential risk of contamination of the sample by bacteria in the inner cavity of the handle tube 1 through the long probe rod 21.

The second embodiment, based on the first embodiment, please refer to Figures 2 to 6. The sampling assembly 2 includes a long probe rod 21 that is rotatably installed through the first rotating shaft 11 and the handle barrel 1. The long probe rod 21 has A disc 22 is fixedly installed on the outer surface and is arranged close to the first rotating shaft 11. An extrusion spring 23 is set on the outer surface of the long probe rod 21. A baffle 24 is set on the outer surface of the long probe rod 21. The extrusion spring 23 is installed between the disc 22 and the baffle 24, and one end is fixedly connected to the disc 22, and the other end is fixedly connected to the baffle 24. The baffle 24 is fitted and installed in the inner wall of the handle tube 1, and the long probe rod 21 passes through The extrusion spring 23 and the baffle 24 cooperate with the handle barrel 1 and are mounted elastically.

The middle part of the left end of the long probe rod 21 is fixedly connected with a barb 25 and is tilted to the right. An annular capsule 26 is installed on the outer surface of the long probe rod 21. A polylactic acid scoop 27 is installed on the left end of the long probe rod 21. The lactic acid scoop 27 is fastened and installed with the long probe rod 21 through the barb 25. The end of the polylactic acid scoop 27 away from the long probe rod 21 is symmetrically connected with protrusions 28 on both sides, so that the sample wrapped in the sterile bag can be processed. Assist bag breaking sampling.

The left end of the annular capsule 26 is fixedly installed with a positioning ring 29, and the right end of the annular capsule 26 is fixedly installed with an extension plug ring 210. The annular capsule 26 is installed in combination with the positioning ring 29 and the long probe rod 21 to ensure that the previous sampling process is not interrupted. It will interfere with the next sampling results.

When in use, the plug ring 210 can be fitted and installed in the groove where the second rotating shaft 12 and the sterile envelope 13 are assembled by extending the plug ring 210, and the annular capsule 26 is used to seal the left end of the second rotating shaft 12, and combined with the sterile envelope 13, the The effective blocking of bacteria jointly provides a double bactericidal structure to prevent the disposable sterilization sleeve 5 after collecting the sample from contaminating the inner cavity of the central receiving sleeve 3 and the handle sleeve 1 through the long probe 21. In order to replace the new one After the disposable sterilization sleeve 5 and the disposable sterilization cap 6, the continuous safe use of the handle barrel 1 and the central receiving barrel 3 is realized, ensuring that the previous sampling process will not interfere with the next sampling result, and the sampling device is realized The recycling of the main body can directly discard the most contaminated parts, and reuse the operating parts, which not only reduces the waste of resources, but also makes the medical staff more comfortable in using the sampling device;

By taking advantage of the good biodegradability of polylactic acid scoop 27, it can be completely degraded by microorganisms in nature after use, eventually generating carbon dioxide and water. It does not pollute the environment and does not contaminate the bacterial flora of the sample, reducing the need to handle polylactic acid alone. Step 27 of scooping can improve the efficiency of sampling and testing the bacterial flora of the sample.

The third embodiment is based on the first and second embodiments. Please refer to Figures 4 and 5. A guide block 42 is fixedly connected to the inner wall of the handle barrel 1 and is located at the left end. A one-way injection tube 41 passes through the guide block 42. The middle part of the block 42 is provided to support and guide the middle part of the one-way injection tube 41. One end of the one-way injection tube 41 that extends into the inner cavity of the central socket 3 is threaded with a thin glass popping bead 43, and is filled inside. There is a low concentration of chlorine dioxide, which is used to sterilize and deodorize contaminated samples. A compression bead 44 is installed in the middle of the outer surface of the thin glass exploding beads 43 to facilitate crushing of the thin glass exploding beads 43.

A hemisphere 45 is fixedly installed on the inner wall of the central socket 3. A top bead 46 is installed on the side of the hemisphere 45 away from the inner wall of the central socket 3. A trigger spring 47 is connected between the top bead 46 and the hemisphere 45. The top bead 46 passes through the trigger spring 47. It is elastically connected to the hemispherical body 45, and the top of the top bead 46 corresponds to the compression bead 44, but does not contact.

When in use, when the sampling device falls to the ground or suffers a frontal impact from an external force, the top bead 46 can be used to accurately hit the compression bead 44 after sagging due to inertia and being bounced upward by the trigger spring 47 to achieve rapid impact on the thin glass explosive bead 43. Crush, thereby releasing low-concentration chlorine dioxide inside, to automatically realize rapid sterilization and disinfection of the interior of the disposable sterilization sleeve 5, so that the sampling device has the function of anti-falling and self-disinfection protection;

And by replacing the new thin glass explosive beads 43, the sterilization assembly 4, the handle barrel 1 and the central adapter 3 can be used together again, and the self-anti-fall protection function of the sampling device can continue to be exerted;

Moreover, a large amount of low-concentration chlorine dioxide can be continuously injected into the interior of the disposable sterilization sleeve 5 through the one-way injection tube 41 to ensure sufficient sterilization and disinfection of excess samples inside the disposable sterilization sleeve 5. Prevent the sample from contaminating the inner wall of the disposable sterilization sleeve 5 after falling or being impacted by external force, and then pollute the working environment, and eliminate the bacteria in the sample in advance inside the disposable sterilization sleeve 5, so as to facilitate the replacement of a new one The disposable sterilizing sleeve 5 and the disposable sterilizing cover 6 are installed; at the same time, the inner cavity of the central receiving barrel 3 is simply rinsed with sterilizing water, and the next sampling operation can be carried out again.

Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in this field and related fields without creative efforts should fall within the scope of protection of the present invention. The structures, devices and operating methods that are not specifically described and explained in the present invention are all implemented according to conventional means in the art unless otherwise specified or limited.

Claims (10)

1. A gastrointestinal flora sampling device comprising a handle (1), characterized in that: the left end thread of the handle cylinder (1) is provided with a central connecting cylinder (3), the left end thread of the central connecting cylinder (3) is provided with a disposable sterilizing sleeve (5), and the left end thread of the disposable sterilizing sleeve (5) is provided with a disposable sterilizing sealing cover (6) for closing and shielding the left end of the disposable sterilizing sleeve (5);

the device also comprises a sampling assembly (2), wherein the sampling assembly (2) is assembled on the inner side of the handle cylinder (1);

the sterilization assembly (4), this sterilization assembly (4) is installed on the inner wall of central connecing section of thick bamboo (3), sterilization assembly (4) are including installing one-way injection tube (41) inboard in handle section of thick bamboo (1) left end, and one end exposes in the surface of handle section of thick bamboo (1), and one end cartridge is on the inner wall of central connecing section of thick bamboo (3) to extend to the inner chamber of central connecing section of thick bamboo (3).

2. The gastrointestinal flora sampling device of claim 1, wherein: the outer surface symmetry of handle section of thick bamboo (1) is connected with hangers (7), and is located the right-hand member setting of keeping away from central joint section of thick bamboo (3), the left end middle part fixedly connected with first screwed ring (8) of handle section of thick bamboo (1), the left end middle part of handle section of thick bamboo (1) still fixedly connected with second screwed ring (9), and the cage is in the outside of first screwed ring (8), handle section of thick bamboo (1) connect section of thick bamboo (3) threaded installation with central joint through first screwed ring (8) and second screwed ring (9) cooperation.

3. The gastrointestinal flora sampling device of claim 2, wherein: the left end of the handle cylinder (1) is provided with a central separation cavity (10), and the central separation cavity is arranged between the first threaded ring (8) and the second threaded ring (9).

4. A gastrointestinal flora sampling device according to claim 3, wherein: the handle cylinder (1) is far away from one end mid-mounting of a central joint cylinder (3) and is provided with a first rotating shaft (11), the right end mid-mounting of the central joint cylinder (3) is provided with a second rotating shaft (12), the inner side of the second rotating shaft (12) is embedded with a sterile sleeve (13), the sterile sleeve (13) is rotatably mounted with the central joint cylinder (3) through the second rotating shaft (12), and the edge of the inner cavity of the central joint cylinder (3) is provided with a rounding part (14).

5. The gastrointestinal flora sampling device of claim 4, wherein: the left end of the handle cylinder (1) is provided with a vacuum valve tube (15), penetrates through the second threaded ring (9) and stretches into the inner side of the central separation chamber (10), a one-way valve hole is formed in the inner wall of the first threaded ring (8) at a position corresponding to the central separation chamber (10), and a balance plate (16) is fixedly connected to the outer surface of the handle cylinder (1) and is arranged on one side deviating from the vacuum valve tube (15).

6. The gastrointestinal flora sampling device of claim 4, wherein: the sampling assembly (2) comprises a long probe rod (21) rotatably mounted with the handle cylinder (1) through a first rotating shaft (11), a disc (22) is fixedly mounted on the outer surface of the long probe rod (21), the long probe rod is arranged close to the first rotating shaft (11), an extrusion spring (23) is sleeved on the outer surface of the long probe rod (21), a baffle plate (24) is sleeved on the outer surface of the long probe rod (21), the extrusion spring (23) is mounted between the disc (22) and the baffle plate (24), one end of the extrusion spring is fixedly connected with the disc (22), the other end of the extrusion spring is fixedly connected with the baffle plate (24), the baffle plate (24) is mounted in the inner wall of the handle cylinder (1) in a jogged mode, and the long probe rod (21) is mounted with the handle cylinder (1) in a bouncing mode through the cooperation of the extrusion spring (23) and the baffle plate (24).

7. The gastrointestinal flora sampling device of claim 6, wherein: the long probe rod is characterized in that a barb (25) is fixedly connected to the middle of the left end of the long probe rod (21), the long probe rod is obliquely arranged right, an annular capsule (26) is installed on the outer surface of the long probe rod (21), a polylactic acid scoop (27) is installed at the left end of the long probe rod (21), the polylactic acid scoop (27) is buckled and installed with the long probe rod (21) through the barb (25), and a protruding thorn (28) is symmetrically connected with one end side of the polylactic acid scoop (27) far away from the long probe rod (21).

8. The gastrointestinal flora sampling device of claim 7, wherein: the left end of the annular capsule (26) is fixedly provided with a positioning ring (29), the right end of the annular capsule (26) is fixedly provided with an extension plug ring (210), and the annular capsule (26) is assembled and installed with the long probe rod (21) through the positioning ring (29).

9. The gastrointestinal flora sampling device of claim 1, wherein: the inner wall surface fixedly connected with guide block (42) of handle section of thick bamboo (1), and be located the left end setting, one end screw thread that unidirectional syringe (41) stretched into central connect section of thick bamboo (3) inner chamber is installed thin glass and is exploded pearl (43), and inside hold the chlorine dioxide that is equipped with low concentration, the surface mid-mounting of thin glass explodes pearl (43) has oppression pearl (44).

10. The gastrointestinal flora sampling device of claim 9, wherein: the inner wall of the central connecting cylinder (3) is fixedly provided with a hemisphere (45), one surface of the hemisphere (45) far away from the inner wall of the central connecting cylinder (3) is provided with a top bead (46), a trigger spring (47) is connected between the top bead (46) and the hemisphere (45), the top bead (46) is in spring connection with the hemisphere (45) through the trigger spring (47), and the top of the top bead (46) is correspondingly matched with the pressing bead (44) but is not in contact with the pressing bead.