Sampling device for excrement collection for intestinal flora detection

Abstract

The utility model provides a sampling device for excrement collection for intestinal flora detection, which comprises a cylindrical main body shell with a feed inlet formed at the upper end and an operation opening formed at the lower end; a penetrating connection space is formed in the shell wall; the double-cavity catheter air bag comprises a catheter body, a first air path and a second air path are arranged in the catheter body, a collecting end is arranged at the front end of the catheter body, and a collecting opening communicated with the first air path is formed in the front end of the collecting end. An air bag body is arranged on the peripheral side of the collecting end and is communicated with the second air path; the collecting piston piece comprises a piston part arranged in the main body shell, and a collecting space is formed between the upper end of the piston part and the upper space in the main body shell. A double-cavity catheter air bag structure is arranged in the sampling device, and the sampling device can be connected with an injector to achieve suction of loose excrement; and through the arrangement of the second air path, the access pump assembly can be connected and controlled, and the pressurization expansion air bag body blocks the feeding port.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a sampling device for collecting feces for intestinal flora detection. Background Technology

[0002] The gut microbiota refers to the collective term for microorganisms residing in the intestines. They influence the balance of the gut microbiota in terms of intestinal inflammation and metabolism. The gut microbiota has been found to play a crucial role in protecting human health and maintaining homeostasis, and is often referred to as the "second genome" of humans. Stool testing is a routine clinical laboratory procedure. By analyzing the gut microbiota, stool testing can reveal changes in intestinal inflammation and metabolism, identifying whether gut microbiota dysbiosis is present, thus enabling targeted treatment and helping people prevent disease and improve their health. Stool testing of the gut microbiota is of great significance.

[0003] When the user has little or no stool in the rectum, it can easily lead to sampling failure or insufficient sample volume. After sampling, the sample cannot be stored at a suitable temperature for intestinal flora testing, which affects the sample quality and results in non-standard test results, requiring improvement. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for collecting stool samples for intestinal flora detection, overcoming the shortcomings of existing technologies. This sampling device can automatically select and adjust different sampling methods to collect stool samples based on whether the sample is loose or regular, thus meeting the application requirements for stool collection in intestinal flora detection.

[0005] A sampling device for collecting fecal samples for intestinal flora detection includes: a main shell, which is cylindrical in shape, with an inlet at the upper end and an operation opening at the lower end; a penetration space is formed in the shell wall; a double-lumen catheter balloon, including a catheter body, wherein the catheter body has a first air passage and a second air passage, and a collection tip is provided at the front end of the catheter body, the collection tip having a collection opening communicating with the first air passage at its front end; an air balloon body is provided on the outer periphery of the collection tip, and the air balloon body is communicating with the second air passage; the penetration space has an upper penetration opening corresponding to the inlet and a lower penetration opening corresponding to the operation opening; the catheter body is inserted into the... In the insertion space, the collection end is positioned at the upper insertion port, the rear end of the conduit extends out through the lower insertion port, and the rear end of the conduit is provided with a collection port adapted for syringe assembly corresponding to the first air path, and a collection switch is provided on the collection port; the rear end of the conduit is provided with a pressure control port adapted for pump assembly assembly corresponding to the second air path; the collection piston includes a piston part disposed in the main body shell, a piston rod disposed at the lower end of the piston part, the piston rod extending through the operation opening, and a piston handle disposed at the lower end of the piston rod; a collection space is formed between the upper end of the piston part and the upper space inside the main body shell.

[0006] Furthermore, a first filter membrane for sample collection and filtration is provided inside the main shell corresponding to the inlet side.

[0007] Furthermore, a storage space is provided in the piston section, and a second filter membrane for sample collection and filtration is provided on the upper side of the piston section.

[0008] Furthermore, the insertion port is located on the lower outer periphery of the main body shell, and the insertion port is provided with a mounting component. The mounting component is provided with a first positioning hole that matches the acquisition port and a second positioning hole that matches the pressure control port.

[0009] Furthermore, a collection shovel for pre-collecting feces is provided on the outer periphery of the front end of the feed inlet, and a collection cavity is recessed on the side of the collection shovel facing the feed inlet.

[0010] Furthermore, the collecting shovel is configured in a bent shape.

[0011] The beneficial effects of the present invention are:

[0012] By incorporating a dual-lumen tubular airbag structure into the sampling device, a syringe can be connected via the rear end of the tubular body to the first air path, enabling the suction of loose stool and meeting the application requirements for loose stool collection. Furthermore, the second air path connects to a control pump assembly, pressurizing and expanding the airbag. This expanded airbag seals the inlet, effectively collecting and sealing conventional feces obtained through suction using a collection piston, thus meeting the application requirements for the collection and preservation of conventional feces. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structural arrangement of the sampling device of this utility model;

[0014] Figure 2 for Figure 1 A magnified view of part A.

[0015] Explanation of reference numerals in the attached figures:

[0016] Main body shell 1, feed inlet 10, first filter membrane 101, operation opening 11, through-hole 12.

[0017] 2. Catheter body; 201. First air passage; 202. Second air passage; 21. Acquisition tip; 211. Acquisition opening; 22. Inflatable bag; 23. Acquisition port; 24. Pressure control port.

[0018] Piston section 3, storage space 30, second filter membrane 301, piston rod 31, piston handle 32, collection space 4, third filter layer 41, sampling scale 42, collection shovel 5, collection chamber 51. Detailed Implementation

[0019] To make the technical solution, purpose and advantages of this utility model clearer, the following explanation is given in conjunction with the accompanying drawings and embodiments.

[0020] As attached Figures 1 to 2 As shown, this utility model discloses a fecal sampling device for intestinal flora detection, comprising:

[0021] The main body shell 1 is cylindrical, with an inlet 10 at its upper end and an operation opening 11 at its lower end; a through-hole 12 is formed in the shell wall. A dual-lumen catheter airbag includes a catheter body 2, which has a first air passage 201 and a second air passage 202. A collection tip 21 is located at the front end of the catheter body 2, with a collection opening 211 at the front end of the collection tip 21 communicating with the first air passage 201. An airbag body 22 is located on the outer periphery of the collection tip 21, communicating with the second air passage 202. The through-hole 12 has an upper through-hole corresponding to the inlet 10 and a lower through-hole corresponding to the operation opening 11. The catheter body 2 is inserted into the through-hole 12, the collection tip 21 is positioned at the upper through-hole, and the rear end of the catheter body 2 exits through the lower through-hole.

[0022] The rear end of the catheter body 2 is provided with a collection port 23 adapted for syringe mounting, corresponding to the first air passage 201, and a collection switch is provided on the collection port 23; the rear end of the catheter body 2 is provided with a pressure control port 24 adapted for pump assembly mounting, corresponding to the second air passage 202. Specifically, the insertion port is located on the lower outer periphery of the main body shell 1, and a mounting component is provided at the insertion port. The mounting component is provided with a first positioning hole matching the collection port 23 and a second positioning hole matching the pressure control port 24.

[0023] The piston assembly includes a piston section 3 disposed within the main body shell 1, a piston rod 31 disposed at the lower end of the piston section 3, the piston rod 31 passing through the operation opening 11, and a piston handle 32 disposed at the lower end of the piston rod 31; a collection space 4 is formed between the upper end of the piston section 3 and the upper space inside the main body shell 1.

[0024] Its application principle is as follows:

[0025] When collecting stool samples from users with loose stools, an existing conventional syringe can be adapted and connected to the collection port 23, the collection switch can be turned on, and the syringe can be used to draw out the loose stool fluid to complete the collection of loose stool.

[0026] When collecting regular viscous feces, the piston handle 32 is linked to the piston rod 31 in the collecting piston component to drive the piston part 3 to move, and the feces are drawn from the feed port 10 into the collecting space 4 under negative pressure, thus completing the collection of regular feces.

[0027] After conventional fecal collection, the external pump assembly is connected to the pressure control port 24, and the output gas is pressurized to inflate the air bladder 22. The inflated air bladder 22 can tightly seal the feed inlet 10 to enclose the collection space 4. The external pump assembly is disassembled and the pressure control port 24 is closed to obtain the temporarily sealed fecals.

[0028] When it is necessary to sample the feces temporarily stored in the sampling device, the sampling piston can be disassembled and separated through the operation opening 11. By disassembling the sampling piston, the feces can be taken out from the sampling space 4; or, the pressure control port 24 can be opened to depressurize the airbag 22, and the feed port 10 can be opened to take out the feces from the sampling space 4.

[0029] Example 2:

[0030] This embodiment is based on the application premise of Embodiment 1. In order to reduce the presence of impurities, particles, bacteria, and microorganisms in the obtained sampled feces, the following further preferred design can be selected:

[0031] The main body shell 1 is provided with a first filter membrane 101 for sample collection and filtration on the side corresponding to the feed port 10. The piston part 3 is provided with a storage space 30. The piston part 3 is provided with a second filter membrane 301 for sample collection and filtration on the upper side.

[0032] In a preferred embodiment, the first filter membrane 101 is a metal filter membrane, and the second filter membrane 301 is an activated carbon filter membrane.

[0033] Due to the piston movement of the aforementioned collecting piston, some feces may remain in the collecting space 4 during the collecting process; after the airbag 22 blocks the feed inlet 10, the piston 3 is continuously driven to increase pressure so that the feces in the collecting space 4 can fall fully into the storage space 30.

[0034] Preferably, a third filter layer 41 may be further provided within the storage space 30 to more thoroughly filter the sample. This third filter layer 41 is a dilution filter layer.

[0035] By using a multi-layer filtration structure, the quality of the fecal samples collected by the sampling device is improved, thus enhancing the accuracy of the sample test results.

[0036] The main shell 1 is made of transparent material, allowing the sampler to clearly and intuitively understand the sampling situation. A sampling scale 42 is set on the lower part of the main shell 1 corresponding to the storage space 30, allowing the sampler to know the amount of feces sampled.

[0037] Example 3:

[0038] To facilitate the collection of feces, a collection shovel 5 for pre-collection of feces can be provided on the outer periphery of the front end of the feed inlet 10. The collection shovel 5 has a collection cavity 51 recessed on the side facing the feed inlet 10, and the collection shovel 5 is bent.

[0039] During the collection process, the collection shovel 5 is first driven to move in multiple directions to buffer sufficient fecal samples into the collection chamber 51. Then, the syringe is driven to collect the corresponding loose stool liquid through the collection opening 211, or the piston movement of the collection piston causes the sample in the collection chamber 51 to be collected into the collection space 4 through the inlet 10. In this application, the collection opening 211 on the collection end 21 is set to correspond to the position of the collection chamber 51.

[0040] The front end of the bent-head collection shovel 5, i.e. the insertion end, has the smallest outer diameter, which makes it easy to insert into the sampling position; while the inward bending can effectively form a collection cavity 51 and prevent feces from flowing out backward.

[0041] The above description is only a preferred embodiment of the present utility model. For those skilled in the art, modifications can still be made to the embodiments without departing from the implementation principle of the present utility model, and the corresponding modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sampling device for collecting feces for intestinal flora detection, characterized in that, include: The main body shell is cylindrical, with a feed inlet at the top and an operating opening at the bottom. A through-hole is formed in its shell wall; A dual-lumen catheter balloon includes a catheter body, a first air passage and a second air passage provided inside the catheter body, a collection tip provided at the front end of the catheter body, and a collection opening at the front end of the collection tip communicating with the first air passage; An air bladder is provided on the outer periphery of the collection tip, and the air bladder is connected to the second air passage; the penetration space is provided with an upper penetration port corresponding to the inlet position and a lower penetration port corresponding to the operation opening side; the guide tube is inserted into the penetration space, the collection tip is positioned at the upper penetration port, the rear end of the guide tube extends out through the lower penetration port, the rear end of the guide tube is provided with a collection port adapted for syringe mounting corresponding to the first air passage, and a collection switch is provided on the collection port; the rear end of the guide tube is provided with a pressure control port adapted for pump assembly mounting corresponding to the second air passage; The sampling piston assembly includes a piston portion disposed within the main body housing, a piston rod disposed at the lower end of the piston portion, the piston rod extending through the operating opening, and a piston handle disposed at the lower end of the piston rod; a sampling space is formed between the upper end of the piston portion and the upper space within the main body housing.

2. The sampling device as described in claim 1, characterized in that, A first filter membrane for sample collection and filtration is provided inside the main shell on the side corresponding to the inlet.

3. The sampling device as described in claim 1, characterized in that, A storage space is provided in the piston section, and a second filter membrane for sample collection and filtration is provided on the upper side of the piston section.

4. The sampling device as described in claim 1, characterized in that, The insertion port is located on the lower outer periphery of the main body shell. The insertion port is provided with a mounting component. The mounting component is provided with a first positioning hole that matches the acquisition port and a second positioning hole that matches the pressure control port.

5. The sampling device according to any one of claims 1 to 4, characterized in that, A collection shovel for pre-collecting feces is provided on the outer periphery of the front end of the feed inlet, and a collection cavity is recessed on the side of the collection shovel facing the feed inlet.

6. The sampling device as described in claim 5, characterized in that, The shovel is designed with a curved head.

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