Intestinal microecological specimen collector

Abstract

The intestinal microecological specimen collector comprises a sampling tube, a piston, a piston rod and a collecting head, the piston is installed in the sampling tube, the piston rod is connected to the rear end of the piston, and the collecting head is arranged at the front end of the sampling tube; a sealing pipe is installed on the outer side of the sampling pipe through a thread structure A. The collecting head further comprises an oval head collecting structure, a sampling hole and an oval sealing structure. The device is simple in structure, convenient to operate, low in production and processing difficulty, low in cost and suitable for industrial production and practical application; meanwhile, the device can control opening and closing of the oval end and the oval sealing structure so as to collect samples, then the samples can be stored through the piston structure and the sample storage structure, the collection process is simple and rapid, the samples cannot make contact with air, the anus and the intestinal tract of a person who sends the samples to be detected are prevented from being damaged, and the safety performance is good; and the device can be manually operated, so that the feelings of a person who delivers the test specimen can be more conveniently considered during use.

Description

Technical Field

[0001] The patent of this invention belongs to the field of biological specimen collection technology, and specifically relates to an intestinal microecological specimen collector. Background Art

[0002] The common method of collecting intestinal microecological specimens is to use the small spoon of the stool specimen collector to scoop a small amount of feces into the specimen bottle after the feces is discharged into the toilet, and then cover it for storage and inspection. This collection process has the following shortcomings: 1. Since the toilet has not been disinfected, enzyme-free and DNA-free, the stool specimen will be contaminated by bacteria or other microorganisms on the toilet wall, resulting in the test results not being able to fully represent the intestinal microecological structure of the person who submitted the specimen; 2. After the stool specimen is collected, the anaerobic bacteria in it will die due to exposure to the air, while the non-anaerobic bacteria will continue to multiply. Intestinal microecology is the composition ratio of intestinal microorganisms. Therefore, the continued reproduction of non-anaerobic bacteria after the specimen is collected will increase their composition ratio, while the immediate death of anaerobic bacteria in the air environment will reduce their composition ratio. In other words, the exposure of stool specimens to the air will directly affect the test results of intestinal microecology.

[0003] The inventors have found that the prior art that solves the above technical problems includes an intestinal microecological specimen collector disclosed in Chinese patent (CN109988707A), which includes a collector body and a cover. A collecting device is arranged in the collector body. The top of the collecting device is six valves. The bottom of each valve is hinged to the top of a connecting column. The bottom of the connecting column is connected to the top of a telescopic column. The telescopic column is fixedly connected to the cylinder shaft of a cylinder one at its bottom. A cylinder two is arranged on the middle platform. Two pull rods are symmetrically arranged on both sides of the cylinder shaft at the top of the cylinder two. The pull rods pass through the top surface of the telescopic column and are fixedly connected to the bottom of a connecting ring. The top surface of the connecting ring is connected to the outer wall of each valve by a connecting rod respectively. The top of the connecting rod is hingedly connected to the outer wall of the valve. A power supply is arranged in the collector body and a control button panel is arranged at the bottom.

[0004] However, the device has the following defects: 1. Although the device can use a collector to directly collect fecal specimens in the intestine, the structure of the collector is too complicated, which makes the processing difficult and the cost too high, and is not suitable for industrial production and practical application; 2. At the same time, the design of the six valves makes the device a potential safety hazard during use. Because the six valves are still in the feces after sampling, the six valves cannot be completely closed. As long as there is a gap between them, the intestinal tissue of the person submitting the sample may be scratched, thereby causing infection. Moreover, after being drawn out, the sample will still be exposed to the air, affecting the test results of intestinal microecology; 3. In addition, the device uses cylinders to control the opening and closing and telescopic movement of the valve and telescopic column, which has great problems. Because the anus and intestinal adaptability of different test subjects is different, the electric control hard push method cannot take into account the feelings of the test subject like manual push collection.

[0005] Therefore, this paper proposes an intestinal microecological specimen collector. Summary of the invention

[0006] In order to solve the above problems, the present invention provides an intestinal microecological specimen collector which has a simple structure, is easy to operate, has high safety, and is isolated from air.

[0007] In order to achieve the above-mentioned technical effect, the present invention provides an intestinal microecological specimen collector, including a sampling tube, a piston, a piston rod, and a collecting head. A piston is installed in the sampling tube, the rear end of the piston is connected to the piston rod, and the front end of the sampling tube is provided with a collecting head; a sealing tube is installed on the outside of the sampling tube through a threaded structure A, and the collecting head also includes an elliptical head collecting structure, a sampling hole, and an elliptical sealing structure. The elliptical head collecting structure is installed at the front end of the sampling tube, and the sampling hole is arranged on the side wall of the collecting tube behind the elliptical head collecting structure. The front end of the sealing tube is provided with an elliptical sealing structure that can seal the sampling hole.

[0008] Preferably, a finger lock is provided on the rear end side of the sampling tube.

[0009] Preferably, the front end of the piston is provided with a rubber pad which can seal the sampling hole from inside the sampling tube.

[0010] Preferably, the elliptical head collection structure also includes an elliptical end, an inner cavity, a sample storage structure, an injection head, and a slot. The elliptical end is mounted on the outer side of the front end of the sampling tube through a threaded structure B. The elliptical end is provided with an inner cavity that can accommodate the sample storage structure. The sample storage structure is mounted on the inner side of the front end of the sampling tube through a threaded structure C. The injection head is installed in the slot on the inner side of the sampling tube at the rear end of the sample storage structure.

[0011] Preferably, the sample storage structure also includes a joint, a sealing rubber plug, and a compressed sterile bag. The joint can be mounted on the inner side of the front end of the sampling tube through a threaded structure C. A sealing rubber plug is installed in the joint, and a compressed sterile bag is installed at the front end of the joint.

[0012] Preferably, the injection head further comprises a base and an injection needle, wherein the base is installed in a slot inside the sampling tube at the rear end of the sample storage structure, and the injection needle is installed at the front end of the base.

[0013] Preferably, the rear end of the sealing tube is provided with anti-slip grooves.

[0014] Preferably, a sealing rubber ring is provided on the inner side of the front end of the elliptical sealing structure and is in close contact with the outer wall of the sampling tube.

[0015] Preferably, the front end outer diameter of the elliptical sealing structure is the same as the rear end outer diameter of the elliptical head collecting structure, and both the front end of the elliptical sealing structure and the rear end of the elliptical end head are provided with arc-shaped chamfers.

[0016] The present invention also provides an application method of an intestinal microecological specimen collector, which specifically comprises the following steps: S1. When using, first apply medical lubricant on the outside of the collection head and the anus of the person sending the sample for testing, and then the sampler slowly inserts the collection head into the intestine of the person sending the sample for testing by holding the finger buckle and the sealing tube; S2, then rotate the sealing tube or sampling tube to separate the elliptical sealing structure and the elliptical end to expose the sampling hole, then hold the sampling tube firmly by holding the finger buckle, and pull the piston rod backward to use negative pressure to draw the feces in the intestine into the sampling tube, and then close the elliptical sealing structure and the elliptical end; S3. Finally, pull out the collection head, unscrew the elliptical end, push the piston to push the sample into the sample storage structure, and then unscrew the sample storage structure to obtain the sample that has not been exposed to air.

[0017] Compared with the prior art, the beneficial effects of the present invention are mainly: The invention has a simple structure, is easy to operate, and has low difficulty and cost in production and processing, and is suitable for industrial production and practical applications. At the same time, the device can control the opening and closing of the elliptical end and the elliptical sealing structure through the threaded structure A on the sealing tube and the sampling tube to collect samples, and then the piston structure and the sample storage structure can be used to store the samples. The collection process is simple and fast and will not come into contact with the air, and damage to the anus and intestines of the person sending the sample for testing is avoided, and the safety performance is good. In addition, the device can be manually operated, and can be used more conveniently while taking into account the feelings of the person sending the sample for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for describing the embodiment are briefly introduced below. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural diagram of the present invention in the collection state; Figure 2 This is the main view of the present invention in the collection state; Figure 3 For the present invention Figure 2 Schematic cross-sectional view of ; Figure 4 For the present invention Figure 3A partial schematic diagram of the middle part; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Sampling tube; 2. Piston; 3. Piston rod; 4. Thread structure A; 5. Sealing tube; 6. Sampling hole; 7. Finger buckle; 8. Rubber pad; 9. Oval end; 10. Inner cavity; 11. Card slot; 12. Thread structure B; 13. Connector; 14. Sealing rubber plug; 15. Compressed sterile bag; 16. Thread structure C; 17. Base; 18. Injection needle; 19. Anti-slip pattern; 20. Sealing rubber ring; 21. Oval sealing structure. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0021] The prior art has the following problems: The inventors have found that, for example, a Chinese patent (CN109988707A) discloses an intestinal microecological specimen collector, which has the following defects: the structure of the collector is too complicated, which makes the processing too difficult and the cost too high, and is not suitable for industrial production and practical applications; at the same time, the device has safety hazards during use, which may scratch the intestinal tissue of the person submitting the specimen, and after being extracted, the sample will still be exposed to the air, affecting the detection results of the intestinal microecology; and the device cannot take into account the feelings of the person submitting the specimen as with manual push collection.

[0022] So, if Figures 1 to 4 As shown, the inventor provides an intestinal microecological specimen collector, including a sampling tube 1, a piston 2, a piston rod 3, and a collection head. The sampling tube 1 is installed with a piston 2, the rear end of the piston 2 is connected to the piston rod 3, and the front end of the sampling tube 1 is provided with a collection head; a sealing tube 5 is installed on the outside of the sampling tube 1 through a threaded structure A4, and the collection head also includes an elliptical head collection structure, a sampling hole 6, and an elliptical sealing structure 21. The elliptical head collection structure is installed at the front end of the sampling tube 1, and the sampling hole 6 is arranged on the side wall of the collection tube behind the elliptical head collection structure. The front end of the sealing tube 5 is provided with an elliptical sealing structure 21 that can seal the sampling hole 6.

[0023] The effect is as follows: the device has a simple structure, is easy to operate, and has low difficulty and cost in production and processing, and is suitable for industrial production and practical applications; at the same time, the device can control the opening and closing of the elliptical end 9 and the elliptical sealing structure 21 through the sealing tube 5 and the threaded structure A4 on the sampling tube 1 to collect samples, and then the piston 2 structure and the sample storage structure can be used to store the samples. The collection process is simple and fast and will not come into contact with the air, and it also avoids damaging the anus and intestines of the person sending the sample for testing, and has good safety performance; and the device can be manually operated, which can be more convenient to use while taking into account the feelings of the person sending the sample for testing.

[0024] Furthermore, a finger lock 7 is provided on the rear end side of the sampling tube 1 ; this structure can facilitate the sampler to hold the sampling tube 1 more stably, and also facilitate the sampler to control the pushing and pulling force of the sampling tube 1 .

[0025] Furthermore, a rubber pad 8 is provided at the front end of the piston 2, which can seal the sampling hole 6 from the inside of the sampling tube 1; this structure can seal the sampling hole 6 from the inside of the sampling tube 1 when the collector is not in use, and can also reduce the space for air in the tube to avoid the existence of air in the tube.

[0026] Furthermore, the elliptical head collection structure also includes an elliptical end 9, an inner cavity 10, a sample storage structure, an injection head, and a slot 11. The elliptical end 9 is mounted on the outer side of the front end of the sampling tube 1 through a threaded structure B12. The elliptical end 9 is provided with an inner cavity 10 that can accommodate the sample storage structure. The sample storage structure is mounted on the inner side of the front end of the sampling tube 1 through a threaded structure C16. The injection head is installed in the slot 11 on the inner side of the sampling tube 1 at the rear end of the sample storage structure. The elliptical end 9 in this structure can facilitate the collector to enter and exit the anus and intestines of the person sending the sample for testing when cooperating with the elliptical sealing structure 21, and after the collector is pulled out, the piston 2 can be pushed by the piston rod 3 to pressurize the sample, and the sample in the sampling tube 1 can be injected into the sample storage structure through the injection head.

[0027] Furthermore, the sample storage structure also includes a connector 13, a sealing rubber plug 14, and a compressed sterile bag 15. The connector 13 can be mounted on the inner side of the front end of the sampling tube 1 through a threaded structure C16. The sealing rubber plug 14 is installed in the connector 13, and the compressed sterile bag 15 is installed at the front end of the connector 13. The compressed sterile bag 15 in this structure can expand the accommodating space as the volume of the sample increases after the fecal sample is injected, and the sealing rubber plug 14 can tightly wrap the injection needle 18 on the injection head, and can also seal the connector 13 after the sample storage structure is removed and the injection needle 18 is pulled out to prevent air from entering.

[0028] Furthermore, the injection head also includes a base 17 and an injection needle 18. The base 17 is installed in the card slot 11 on the inner side of the sampling tube 1 at the rear end of the sample storage structure, and the injection needle 18 is installed at the front end of the base 17; when not in use, the front end of the injection needle 18 passes through the sealing plug 14 and is inserted into the compressed sterile bag 15 (the front end of the needle is not sharp and will not damage the compressed sterile bag 15).

[0029] Furthermore, the rear end of the sealing tube 5 is provided with anti-slip grooves 19; this structure can facilitate the sampler to rotate the sealing tube 5 or the sampling tube 1 through the threaded structure A4, thereby separating or closing the elliptical end 9 and the elliptical sealing structure 21, so as to collect and seal the sample through the sampling hole 6.

[0030] Furthermore, a sealing rubber ring 20 is provided on the inner side of the front end of the elliptical sealing structure 21, which is tightly attached to the outer wall of the sampling tube 1. After collecting the specimen, the structure can close the elliptical end 9 and the elliptical sealing structure 21 by rotating the sealing tube 5 or the sampling tube 1, thereby sealing the sampling hole 6.

[0031] Furthermore, the front end outer diameter of the elliptical sealing structure 21 is the same as the rear end outer diameter of the elliptical head collection structure, and the front end of the elliptical sealing structure 21 and the rear end of the elliptical end head 9 are both provided with arc-shaped chamfers; this structure can prevent the front end of the elliptical sealing structure 21 and the rear end of the elliptical end head 9 from scratching the anus and intestines of the person sending the specimen for testing when the collection head moves in and out, thereby avoiding infection and increasing the safety of the device.

[0032] Based on the above embodiments, the present invention also provides an application method of an intestinal microecological specimen collector, which specifically includes the following steps: S1. When in use, medical lubricant can be applied to the outer side of the anus of the sample collector and the sample collector, and then the sample collector can slowly insert the sample collector into the intestinal tract of the sample collector by holding the finger buckle 7 and the sealing tube 5; S2, then rotate the sealing tube 5 or the sampling tube 1, so as to separate the elliptical sealing structure 21 and the elliptical end 9, exposing the sampling hole 6, and then hold the sampling tube 1 by holding the finger buckle 7, and pull the piston rod 3 backwards, using negative pressure to draw the feces in the intestine into the sampling tube 1, and then close the elliptical sealing structure 21 and the elliptical end 9; S3. Finally, pull out the collection head, unscrew the elliptical end head 9, push the piston 2 to push the sample into the sample storage structure, and then unscrew the sample storage structure to obtain the sample that has not been exposed to air.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intestinal microecological specimen collector, comprising a sampling tube (1), a piston (2), a piston rod (3), and a collection head, wherein the sampling tube (1) is provided with a piston (2), the rear end of the piston (2) is connected to the piston rod (3), and the front end of the sampling tube (1) is provided with a collection head; characterized in that: A sealing tube (5) is installed on the outside of the sampling tube (1) via a threaded structure A (4); the collection head further comprises an elliptical head collection structure, a sampling hole (6), and an elliptical sealing structure (21); the elliptical head collection structure is installed at the front end of the sampling tube (1); the sampling hole (6) is arranged on the side wall of the collection tube behind the elliptical head collection structure; and an elliptical sealing structure (21) capable of sealing the sampling hole (6) is arranged at the front end of the sealing tube (5).

2. The intestinal microecological specimen collector according to claim 1, characterized in that: A finger lock (7) is provided on the rear end side of the sampling tube (1).

3. The intestinal microecological specimen collector according to claim 1, characterized in that: The front end of the piston (2) is provided with a rubber pad (8) which can seal the sampling hole (6) from the inside of the sampling tube (1).

4. The intestinal microecological specimen collector according to claim 1, characterized in that: The elliptical head collection structure further comprises an elliptical end head (9), an inner cavity (10), a sample storage structure, an injection head, and a slot (11); the elliptical end head (9) is sleeved onto the outer side of the front end of the sampling tube (1) via a thread structure B (12); an inner cavity (10) capable of accommodating the sample storage structure is provided in the elliptical end head (9); the sample storage structure is sleeved onto the inner side of the front end of the sampling tube (1) via a thread structure C (16); and the injection head is installed in the slot (11) on the inner side of the sampling tube (1) at the rear end of the sample storage structure.

5. The intestinal microecological specimen collector according to claim 4, characterized in that: The sample storage structure further comprises a joint (13), a sealing rubber plug (14), and a compressed sterile bag (15); the joint (13) can be sleeved onto the inner side of the front end of the sampling tube (1) via a threaded structure C (16); the sealing rubber plug (14) is installed in the joint (13); and the front end of the joint (13) is installed with a compressed sterile bag (15).

6. The intestinal microecological specimen collector according to claim 4, characterized in that: The injection head further comprises a base (17) and an injection needle tube (18); the base (17) is mounted in a slot (11) inside the sampling tube (1) at the rear end of the sample storage structure, and the injection needle tube (18) is mounted at the front end of the base (17).

7. The intestinal microecological specimen collector according to claim 1, characterized in that: The rear end of the sealing tube (5) is provided with anti-slip grooves (19).

8. The intestinal microecological specimen collector according to claim 1, characterized in that: A sealing rubber ring (20) is provided on the inner side of the front end of the elliptical sealing structure (21) and is tightly attached to the outer wall of the sampling tube (1).

9. The intestinal microecological specimen collector according to claim 1, characterized in that: The front end outer diameter of the elliptical sealing structure (21) is the same as the rear end outer diameter of the elliptical head collecting structure, and the front end of the elliptical sealing structure (21) and the rear end of the elliptical end head (9) are both provided with arc-shaped chamfers.

10. The application method of the intestinal microecological specimen collector according to any one of claims 1 to 9, characterized in that: The specific steps include: S1. When in use, medical lubricant may be applied to the outer side of the anus of the sample collector and the sample collector, and then the sample collector slowly inserts the sample collector into the intestinal tract of the sample collector by holding the finger buckle (7) and the sealing tube (5); S2, then rotating the sealing tube (5) or the sampling tube (1), thereby separating the elliptical sealing structure (21) and the elliptical end (9), exposing the sampling hole (6), and then holding the sampling tube (1) by holding the finger buckle (7), and pulling the piston rod (3) backwards, using negative pressure to draw feces in the intestine into the sampling tube (1), and then closing the elliptical sealing structure (21) and the elliptical end (9); S3. Finally, pull out the collection head, unscrew the elliptical end head (9), push the piston (2) to push the sample into the sample storage structure, and then unscrew the sample storage structure to obtain a sample that has not been exposed to air.

Images