A device for collecting and processing a fecal sample

Abstract

This utility model discloses a fecal sample collection and processing device, relating to the field of sampling equipment technology. The device includes an outer tube, an inner tube, first and second covers, a diaphragm, and a filter membrane structure. The top of the outer tube is open, and its inner cavity is used to hold a second liquid. The first cover is located at the top of the outer tube to seal it. The inner tube is inserted into the inner cavity of the outer tube. The second cover is located at the top of the inner tube to seal the open top of the inner tube. A barrel-shaped filter membrane structure is located at the bottom of the inner tube, and the filter membrane structure is sealed to the inner tube, with its inner cavity communicating with the inner cavity of the inner tube. A diaphragm, which can be broken by external force, is located in the inner tube to divide the chamber formed by the inner tube and the filter membrane structure into two independent first and second chambers. The first chamber communicates with the open top of the inner tube and is used to hold a first liquid. The filter membrane structure is used to filter the sample after processing with the first and second liquids. Using this device effectively reduces the number of transfer steps required during sample processing.

Description

Technical Field

[0001] This utility model relates to the field of sampling equipment technology, and more specifically, to a fecal sample collection and processing device. Background Technology

[0002] Human fecal samples are one of the most commonly used clinical test samples, which can reflect the pathological condition of the human body. The test results have important guidance for the diagnosis and medication of digestive system diseases and parasitic diseases. Whether it is biochemical testing or molecular detection of feces, human feces must be collected first before subsequent research can be carried out.

[0003] Traditionally, fecal collection involves using a lid connected to a long handle to collect a portion of the feces from the surface into a sample box. For subsequent research, the fecal sample is removed from the sample box and transferred to a centrifuge tube. After centrifugation, the sample can be used for testing. This process is cumbersome and time-consuming.

[0004] In summary, how to reduce the number of transfer steps during sample processing is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a fecal sample collection and processing device, which can effectively reduce the steps that need to be transferred during the sample processing and save sample processing time.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fecal sample collection and processing device, comprising:

[0008] An outer tube, open at the top, with an inner cavity for containing a second liquid;

[0009] A first cover is provided at the top of the outer tube and is used to close the outer tube;

[0010] The inner tube is inserted into the inner cavity of the outer tube;

[0011] The second cover is located at the top of the inner tube and is used to close the opening at the top of the inner tube.

[0012] A barrel-shaped filter membrane structure is disposed at the bottom of the inner tube. The filter membrane structure is sealed to the inner tube, and the inner cavity of the filter membrane structure is in communication with the inner cavity of the inner tube.

[0013] A diaphragm that can be damaged by external force is provided in the inner tube to divide the chamber formed by the inner tube and the filter membrane structure into a first chamber and a second chamber that are independent of each other.

[0014] The first chamber is connected to the top opening of the inner tube, and the first chamber is used to hold the first liquid. The filter membrane structure is used to filter the sample after the first liquid and the second liquid treatment.

[0015] Preferably, the outer tube is provided with a top plate, which is spliced ​​with the first cover to cover the opening of the outer tube. The first cover is movably disposed on the top of the outer tube to close or open the outer tube.

[0016] The top plate has a through hole, and the inner tube is inserted into the through hole of the top plate.

[0017] Preferably, the inner tube is fixedly disposed within the inner cavity of the outer tube;

[0018] The bottom of the second cover is provided with a cylindrical structure, the outer peripheral wall of the cylindrical structure has external threads, the side wall of the through hole of the top plate has internal threads, and the cylindrical structure is threadedly connected to the through hole of the top plate and the inner wall of the inner tube.

[0019] Preferably, the first cover is provided with a force-applying part for the operator to apply power.

[0020] Preferably, the inner tube is provided with a support member, the diaphragm is located on top of the support member, and the support member has a first channel.

[0021] Preferably, the circumferential surface of the support member is seamlessly connected to the inner wall of the inner tube, and the first channel is a through hole of the support member;

[0022] Alternatively, the support member is a protruding structure on the inner sidewall of the inner tube, and the first channel is the gap between the opposing protruding structures.

[0023] Preferably, the top of the diaphragm is provided with a pressing member, the diaphragm is sandwiched between the support member and the pressing member, and the pressing member has a second channel.

[0024] Preferably, the pressing component has a ring-shaped structure, and the outer wall of the pressing component is seamlessly connected to the inner wall of the inner tube.

[0025] Preferably, the filter membrane structure includes a filter membrane and a support member for supporting the filter membrane, wherein the filter membrane is disposed outside or inside the support member.

[0026] Preferably, the filter membrane is sleeved on the outside of the carrier, and the sealing connection between the top of the filter membrane and the inner tube is higher than the diaphragm.

[0027] The fecal sample collection and processing device provided by this utility model has an opening at the top of the outer tube for inserting the inner tube into its inner cavity. A filter membrane structure is located at the bottom of the inner tube, and a diaphragm cooperates with the tube wall of the inner tube to divide the overall cavity of the inner tube and the filter membrane structure into two independent chambers: a first chamber and a second chamber. The first chamber is formed by the inner tube wall and the diaphragm, and the top opening of the inner tube communicates with the first chamber, so the sample can be placed into the first chamber through the top opening of the inner tube. The second chamber is formed by the filter membrane structure and the diaphragm, or by the filter membrane structure, the diaphragm, and the bottom part of the inner tube wall. A first cover covers the top opening of the outer tube, and a second cover covers the top opening of the inner tube, and the first cover and the second cover are independent of each other.

[0028] During sampling, the second cover is opened, the sample is placed into the first chamber of the inner tube, and then the second cover is closed. The sample dissolves in the first liquid contained in the first chamber. When removing the sample, the second cover is opened, the diaphragm is broken, and the sample enters the second chamber from the first chamber and into the second liquid. The sample then passes through a filter membrane structure and enters the inner cavity of the outer tube. The filter membrane structure removes large protein molecules, large particulate impurities, etc., from the sample, while the substances to be tested enter the inner cavity of the outer tube. The clear liquid in the inner cavity of the outer tube can be directly aspirated using the suction head. This fecal sample collection and processing device can both collect samples and perform filtration operations equivalent to centrifugation, effectively reducing the need for transfer steps during sample processing and saving sample processing time. The independent first and second covers also prevent direct contact between the sample and the second liquid during sampling due to sample dropping or contact. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a specific embodiment provided by this utility model;

[0031] Figure 2 A top view of a specific embodiment provided by this utility model;

[0032] Figure 3 This is a partial schematic diagram of a specific embodiment provided by this utility model;

[0033] Figure 4 A schematic diagram of the inner tube and filter membrane structure of a specific embodiment of this utility model;

[0034] Figure 5 A schematic diagram of the inner tube and filter membrane structure of the second specific embodiment provided by this utility model;

[0035] Figure 6 A schematic diagram of the inner tube and filter membrane structure of the specific embodiment three provided by this utility model;

[0036] Figure 7 A schematic diagram of the inner tube and filter membrane structure of the specific embodiment four provided by this utility model;

[0037] Figure 8 This is a schematic diagram of the inner tube and filter membrane structure of the fifth specific embodiment of this utility model.

[0038] Figures 1-8 In the accompanying drawings, the reference numerals include:

[0039] 1 is the outer tube, 2 is the inner tube, 21 is the first chamber, 22 is the second chamber, 3 is the first cover, 31 is the force application part, 4 is the second cover, 5 is the diaphragm, 6 is the filter membrane structure, 61 is the filter membrane, 62 is the carrier, 7 is the top plate, 8 is the support, and 9 is the pressing part. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] The core of this invention is to provide a fecal sample collection and processing device, which effectively reduces the number of transfer steps required during sample processing and saves sample processing time.

[0042] Please refer to Figures 1 to 8 This utility model provides a fecal sample collection and processing device, including an outer tube 1, an inner tube 2, a first cover 3, a second cover 4, a diaphragm 5, and a filter membrane structure 6.

[0043] The outer tube 1 has an open top, and its inner cavity is used to hold a second liquid. A first cover 3 is located at the top of the outer tube 1 to seal it. An inner tube 2 is inserted into the inner cavity of the outer tube 1. A second cover 4 is located at the top of the inner tube 2 to seal the open top of the inner tube 2. A barrel-shaped filter membrane structure 6 is located at the bottom of the inner tube 2, and is sealed to the inner tube 2. The inner cavity of the filter membrane structure 6 is connected to the inner cavity of the inner tube 2. A diaphragm 5, which can be broken by external force, is located in the inner tube 2 to divide the chamber formed by the inner tube 2 and the filter membrane structure 6 into two independent chambers: a first chamber 21 and a second chamber 22. The first chamber 21 is connected to the open top of the inner tube 2 and is used to hold a first liquid. The filter membrane structure 6 is used to filter the sample after the first liquid and the second liquid treatment.

[0044] The top opening of the outer tube 1 allows the inner tube 2 to be inserted into its inner cavity. This can be achieved by setting a fence plate on the inner wall of the outer tube 1, and the fence plate has a hole that can be locked onto the outer wall of the inner tube 2, thereby supporting the inner tube 2 in the inner cavity of the outer tube 1.

[0045] The diaphragm 5 is sealed to the wall of the inner tube 2. Optionally, it is set on the bottom surface of the inner tube 2 or in the cavity of the inner tube 2. The edge of the diaphragm 5 is bonded to the bottom surface or cavity wall of the inner tube 2, etc., to separate the first cavity 21 and the second cavity 22 into two independent cavities. Specifically, the first cavity 21 is the cavity formed by the inner tube wall of the inner tube 2 and the diaphragm 5, and the top opening of the inner tube 2 is connected to the first cavity 21, so that the sample can be put into the first cavity 21 from the top opening of the inner tube 2.

[0046] The filter membrane structure 6 is a straight cylindrical structure with one end open and the other end closed. The filter membrane structure 6 is located at the bottom of the inner tube 2. The filter membrane structure 6 is bonded to the inner tube 2 or other types of sealed connections, so that the top opening of the filter membrane structure 6 is connected to the bottom opening of the inner tube 2, forming a whole chamber between the chamber of the inner tube 2 and the chamber of the filter membrane structure 6. Optionally, the diaphragm 5 is located in the middle of the inner tube 2, and the second chamber 22 is formed by the diaphragm 5, the inner tube wall at the bottom end of the inner tube 2, and the filter membrane structure 6. Alternatively, the diaphragm 5 is located on the bottom surface of the inner tube 2, in which case the second chamber 22 is formed by the diaphragm 5 and the filter membrane structure 6. The liquid flowing out of the second chamber 22 needs to pass through the small filter pores on the side wall of the filter membrane structure 6 to achieve filtration.

[0047] The first cover 3 covers the opening at the top of the outer tube 1, and the second cover 4 covers the opening at the top of the inner tube 2. The first cover 3 and the second cover 4 are independent of each other. Optionally, the second cover 4 is fitted inside the first cover 3. The first cover 3 is threadedly connected to the outer tube 1, and the inner tube 2 is supported in the outer tube 1 by the aforementioned fence plate, so that rotating the first cover 3 will not affect the second cover 4.

[0048] During sampling, open the second cover 4, place the sample into the first chamber 21 of the inner tube 2, and then close the second cover 4. The sample dissolves in the first liquid contained in the first chamber 21. When removing the sample, open the second cover 4 to break the diaphragm 5. The sample enters the second chamber 22 from the first chamber 21 and enters the second liquid. Then, the sample is filtered by the filter membrane structure 6 and enters the inner cavity of the outer tube 1. The filter membrane structure 6 filters out large molecular proteins, large particulate impurities, etc. in the sample, and the substance to be detected in the sample enters the inner cavity of the outer tube 1. The clear liquid in the inner cavity of the outer tube 1 can be directly aspirated using the suction head.

[0049] This fecal sample collection and processing device can both collect samples and perform filtration operations equivalent to centrifugation, effectively reducing the need for transfer steps during sample processing and saving sample processing time. Furthermore, the device completes filtration before sample removal, eliminating the need for subsequent centrifugation and effectively preventing false negatives due to prolonged exposure to air. In addition, the sample is collected in the first chamber 21 of the inner tube 2 and dissolved in the second liquid, preventing the sample from sticking to the tube wall and greatly improving the sample collection pass rate. Moreover, the independent first cover 3 and second cover 4 can prevent direct contact between the sample and the second liquid during sampling due to sample falling or touching.

[0050] Optionally, the diaphragm 5 is made of a polymer protective film or metal foil to isolate the first chamber 21 from the second chamber 22, and can be destroyed under the action of a large external force.

[0051] Optionally, the first liquid is a lysis buffer that can dissolve the sample and contains guanidine isothiocyanate and sodium dodecyl sulfate; the second liquid is a preservation solution that can protect the sample from damage and contains ethylenediaminetetraacetic acid, tris(hydroxymethyl)aminomethane, sodium chloride, and β-mercaptoethanol.

[0052] The first liquid, containing sodium dodecyl sulfate and guanidine isothiocyanate, facilitates cell lysis and viral rupture, releasing nucleic acids and laying the foundation for filtration in the next step, the filter membrane structure 6. Only nucleic acids enter the inner lumen of the outer tube 1, further simplifying the operation after sample removal. The second liquid, containing ethylenediaminetetraacetic acid, tris(hydroxymethyl)aminomethane, sodium chloride, and β-mercaptoethanol, helps prevent nucleic acid degradation and protects the samples in the fecal sample collection and processing device from damage during long-distance transportation at room temperature. It is worth noting that in this embodiment, the first liquid and the second liquid of the above types can be used simultaneously, or only one of them can be used.

[0053] Optionally, the first liquid and the second liquid are guanidine isothiocyanate, sodium dodecyl sulfate, ethylenediaminetetraacetic acid, tris(hydroxymethyl)aminomethane, sodium chloride, and β-mercaptoethanol at different concentrations.

[0054] Optionally, the first liquid is a high concentration of guanidine isothiocyanate, sodium dodecyl sulfate, ethylenediaminetetraacetic acid, tris(hydroxymethyl)aminomethane, sodium chloride, and β-mercaptoethanol to facilitate sample lysis; the second liquid is a high concentration of guanidine isothiocyanate, sodium dodecyl sulfate, ethylenediaminetetraacetic acid, tris(hydroxymethyl)aminomethane, sodium chloride, and β-mercaptoethanol to facilitate sample preservation.

[0055] Optionally, the volume of the first chamber 21 is twice that of the second chamber 22, providing ample space for the sample to dissolve fully in the first liquid.

[0056] Preferably, the bottom surface of the outer tube 1 is flat, so that the fecal sample collection and processing device can be placed on the operating table for easy placement.

[0057] Based on the above embodiment, the outer tube 1 is provided with a top plate 7, which is spliced ​​with the first cover 3 to cover the opening of the outer tube 1. The first cover 3 is movably disposed on the top of the outer tube 1 to close or open the outer tube 1. The top plate 7 is provided with a through hole, and the inner tube 2 is inserted into the through hole of the top plate 7.

[0058] Specifically, such as Figure 2 As shown, the top plate 7 covers the side of the outer tube 1 where the inner tube 2 is located. A through hole is provided in the middle of the top plate 7 for the inner tube 2 and / or the second cover 4 to be inserted. The top plate 7 is inserted into or bonded to the outer tube 1. Preferably, the outer wall of the inner tube 2 is fitted with the inner side wall of the through hole on the top plate 7, which effectively reduces the possibility of leakage of the second liquid in the inner cavity of the outer tube 1.

[0059] The first cover 3 covers the side of the outer tube 1 where the inner tube 2 is not located. The side of the first cover 3 adjacent to the top plate 7 has the same shape as the top plate 7. When joined together, they can cover the entire opening at the top of the outer tube 1, ensuring that the second liquid inside the outer tube 1 will not leak. Optionally, the adjacent sides of the first cover 3 and the top plate 7 can be rotatably connected, for example, by using hinges or hinged joints. Alternatively, there can be no connecting structure between the first cover 3 and the top plate 7. The first cover 3 and the top plate 7 are integrally molded from plastic materials such as PV, PU, ​​PC, PE, PVC, and PP, and are connected by a thin plastic material with a certain degree of resilience at the joint. In this case, the first cover 3 and the top plate 7 are foldable, and the first cover 3 can be fastened to the outer tube 1. This design effectively ensures the sealing performance of the outer tube 1, and lifting the first cover 3 will not cause any movement or scraping of the second cover 4. The operation is simple, and the structure is straightforward.

[0060] Preferably, the first cover 3 is rotatably connected to the top plate 7, and the second cover 3 can only rotate 90°, effectively avoiding the situation where the second cover 4 cannot be opened after the first cover 3 is opened.

[0061] Based on the above embodiment, the inner tube 2 is fixedly disposed in the inner cavity of the outer tube 1; the bottom of the second cover 4 is provided with a cylindrical structure, the outer peripheral wall of the cylindrical structure has external threads, the side wall of the through hole of the top plate 7 is provided with internal threads, and the cylindrical structure is threadedly connected to the through hole of the top plate 7 and the inner wall of the inner tube 2.

[0062] Specifically, the inner tube 2 is supported within the outer tube 1 and will not move out with the second cover 4. Optionally, a grid plate is provided in the inner cavity of the outer tube 1 to hold the inner tube 2 in place, or the inner tube 2 is interference-fitted to the bottom of the through hole of the top plate 7. The bottom of the second cover 4 has a cylindrical protrusion structure. Optionally, this cylindrical structure can be a stepped structure with unequal diameters along its length or a cylindrical structure with equal diameters. External threads are machined on the circumferential surface of the cylindrical structure, and internal threads are machined on the inner sidewall of the through hole of the top plate 7 and the inner sidewall of the top of the inner tube 2. Thus, the threaded connection between the second cover 4 and the inner tube 2 and the through hole of the top plate 7 is achieved through the external and internal threads, effectively ensuring the sealing performance of the inner tube 2 chamber and preventing sample oxidation.

[0063] Based on the above embodiment, the first cover 3 is provided with a force-applying part 31 for the operator to apply power.

[0064] Specifically, such as Figure 2 As shown, a force-applying part 31 is provided on the side of the first cover 3 away from the top plate 7, or a force-applying part 31 is provided on the top surface of the first cover 3, etc. The force-applying part 31 can be arc-shaped or trapezoidal, etc. In use, the operator grasps the force-applying part 31 to apply force, thereby lifting or pressing the first cover 3. This design further improves the ease of operation of the fecal sample collection and processing device.

[0065] Based on the above embodiment, the inner tube 2 is provided with a support member 8, the diaphragm 5 is located on top of the support member 8, and the support member 8 has a first channel.

[0066] Specifically, the support member 8 has a through hole as a first channel for the sample to flow from the first chamber 21 into the second chamber 22. The first channel of the support member 8 can be a large through hole or a region of several evenly distributed small through holes, etc. Optionally, the support member 8 is fitted with the inner wall of the inner tube 2 by interference fit, bonding, etc., or the support member 8 is part of the structure of the inner tube 2 and the support member 8 is located at the bottom of the diaphragm 5. In this case, the second chamber 22 is formed by the support member 8, the filter membrane structure 6, the diaphragm 5 and the wall of the inner tube 2. With this configuration, the structure of the fecal sample collection and processing device is more stable and can better preserve the sample.

[0067] In some embodiments, the circumferential surface of the support member 8 is seamlessly connected to the inner wall of the inner tube 2, and the first channel is a through hole of the support member 8; or, the support member 8 is a protruding structure on the inner sidewall of the inner tube 2, and the first channel is the gap between the protruding structures that are arranged opposite to each other.

[0068] Specifically, such as Figure 4 and Figure 6 As shown, the circumferential surface of the support member 8 is seamlessly connected to the inner wall of the inner tube 2. It can be achieved that the support member 8 is bonded to the inner tube 2, or that the support member 8 and the inner tube 2 are an integral structure. The support member 8 is a mesh plate located in the middle of the inner tube 2, that is, several through holes are evenly distributed on the support member 8, or a grid-type plate, etc. In this way, it can both support the diaphragm 5 and filter the sample.

[0069] like Figure 5 As shown, the support member 8 is a protruding structure on the inner wall of the inner tube 2 facing its inner cavity, which is beneficial for processing and production.

[0070] Based on the above embodiment, the top of the diaphragm 5 is provided with a pressing member 9, the diaphragm 5 is sandwiched between the support member 8 and the pressing member 9, and the pressing member 9 has a second channel.

[0071] Specifically, the pressing component 9 has a second channel for the sample to flow from the first chamber 21 into the second chamber 22. Similarly, the second channel of the pressing component 9 can be a large through hole or a number of evenly distributed small through hole areas, etc. It is worth noting that the first channel and the second channel can be of the same type or different types. This arrangement helps to maintain the stability of the diaphragm 5 in the inner tube 2.

[0072] Similarly, the pressing component 9 can be fitted to the inner wall of the inner tube 2 by interference fit, bonding, etc. Alternatively, the pressing component 9 can be part of the inner tube 2 and located on top of the diaphragm 5. This arrangement effectively prevents the diaphragm 5 from falling off, which helps to ensure the function of the fecal sample collection and processing device.

[0073] In some embodiments, the pressing member 9 has an annular structure, and the outer wall of the pressing member 9 is seamlessly connected to the inner wall of the inner tube 2.

[0074] Specifically, such as Figure 4 and Figure 5 As shown, the through hole in the middle of the annular pressing part 9 serves as the second channel, and the circumferential surface of the pressing part 9 is fixed by fitting with the inner wall of the inner tube 2. It can be fixed by snap-fit ​​or other arbitrary connection methods. Optionally, the pressing part 9 can be made of elastic ring, such as polyurethane gasket, rubber ring, silicone ring, elastic snap ring, etc., or it can be made of rigid structure, such as plastic parts.

[0075] In some embodiments, the filter membrane structure 6 includes a filter membrane 61 and a support member 62 for supporting the filter membrane 61, wherein the filter membrane 61 is disposed outside or inside the support member 62.

[0076] like Figure 4 , Figures 6 to 8As shown, the top opening of the support member 62 aligns with the top opening of the inner tube 2, and the side wall opening of the support member 62 allows liquid in the second chamber 22 to flow out. Optionally, the support member 62 can be bonded to the inner tube 2, connected by a flange, threaded, or integrally molded. The filter membrane 61 is fitted onto the outside of the support member 62, and its top edge is bonded to the outer wall of the inner tube 2 or otherwise sealed. Alternatively, the filter membrane 61 can be located inside the support member 62, and its connection to the inner wall or bottom surface of the inner tube 2 can be bonded or otherwise sealed. This fecal sample collection and processing device uses the support member 62 to support the filter membrane 61, effectively preventing damage to the filter membrane 61 caused by liquid impact.

[0077] Optionally, filter membrane 61 is a microfiltration membrane, which filters out most of the impurities in the sample.

[0078] It is worth noting that filter membrane 61 can be set separately in filter membrane structure 6, such as Figure 5 As shown, a filter membrane 61 and a carrier 62 can also be provided simultaneously.

[0079] Preferred, such as Figure 8 As shown, the inner tube 2 and the support member 62 are connected by a flange. The diaphragm 5 is bonded to the bottom surface of the inner tube 2, and the support member 62 and the top surface abut against the diaphragm 5, thereby clamping the diaphragm 5 between the inner tube 2 and the support member 62. This arrangement facilitates production and assembly, and is conducive to the stable support of the diaphragm 5.

[0080] Based on the above embodiments, the filter membrane 61 is sleeved on the outside of the support member 62, and the sealing connection between the top end of the filter membrane 61 and the inner tube 2 is located above the diaphragm 5. The top end of the filter membrane structure 6 is bonded to the outer wall of the inner tube 2, or the filter membrane structure 6 is fixed to the inner tube by fasteners, such as clamps, elastic ropes, etc. Figures 4 to 6 As shown, the top opening of the filter membrane structure 6 is higher than the position of the diaphragm 5, which effectively ensures the filtration effect of the filter membrane structure 6 and facilitates assembly and production.

[0081] It is worth noting that the "adhesion" connection method mentioned above can be achieved through methods such as adhesive bonding or hot-press sealing.

[0082] It should be noted that the relational terms such as "first" and "second" mentioned above are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities; the terms "upper surface," "lower surface," "top," and "bottom" and the directional terms "upper," "lower," "left," and "right" mentioned above are defined based on the accompanying drawings in the specification.

[0083] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0084] The above provides a detailed description of the fecal sample collection and processing device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A faecal sample collection and processing device, characterised in that, include: An outer tube (1) with an open top, and the inner cavity of the outer tube (1) is used to hold a second liquid; The first cover (3) is located on the top of the outer tube (1) and is used to close the outer tube (1); The inner tube (2) is inserted into the inner cavity of the outer tube (1); The second cover (4) is provided on the top of the inner tube (2) and is used to close the opening at the top of the inner tube (2); A barrel-shaped filter membrane structure (6) is disposed at the bottom of the inner tube (2). The filter membrane structure (6) is sealed to the inner tube (2), and the inner cavity of the filter membrane structure (6) is in communication with the inner cavity of the inner tube (2). A diaphragm (5) that can be damaged by external force is provided in the inner tube (2) to divide the chamber formed by the inner tube (2) and the filter membrane structure (6) into a first chamber (21) and a second chamber (22) that are independent of each other; The first chamber (21) is connected to the top opening of the inner tube (2), and the first chamber (21) is used to hold the first liquid, and the filter membrane structure (6) is used to filter the sample after the first liquid and the second liquid treatment.

2. The fecal sample collection and treatment device of claim 1, wherein, The outer tube (1) is provided with a top plate (7), which is spliced ​​with the first cover (3) to cover the opening of the outer tube (1). The first cover (3) is movably disposed on the top of the outer tube (1) to close or open the outer tube (1). The top plate (7) is provided with a through hole, and the inner tube (2) is inserted into the through hole of the top plate (7).

3. The fecal sample collection and treatment device of claim 2, wherein, The inner tube (2) is fixedly disposed within the inner cavity of the outer tube (1); The bottom of the second cover (4) is provided with a cylindrical structure, the outer peripheral wall of the cylindrical structure has external threads, the side wall of the through hole of the top plate (7) is provided with internal threads, and the cylindrical structure is threadedly connected to the through hole of the top plate (7) and the inner wall of the inner tube (2).

4. The fecal sample collection and treatment device of claim 2, wherein, The first cover (3) is provided with a force-applying part (31) for the operator to apply power.

5. The fecal sample collection and treatment device of claim 1, wherein, The inner tube (2) is provided with a support member (8), the diaphragm (5) is located on top of the support member (8), and the support member (8) has a first channel.

6. The fecal sample collection and treatment device of claim 5, wherein, The circumferential surface of the support member (8) is seamlessly connected to the inner wall of the inner tube (2), and the first channel is a through hole of the support member (8); Alternatively, the support member (8) is a protruding structure on the inner wall of the inner tube (2), and the first channel is the gap between the protruding structures that are arranged opposite to each other.

7. The fecal sample collection and treatment device of claim 5, wherein, The top of the diaphragm (5) is provided with a pressing member (9), the diaphragm (5) is sandwiched between the support member (8) and the pressing member (9), and the pressing member (9) has a second channel.

8. The fecal sample collection and treatment device of claim 7, wherein, The pressing component (9) has a ring-shaped structure, and the outer wall of the pressing component (9) is seamlessly connected to the inner wall of the inner tube (2).

9. The fecal sample collection and treatment device of any one of claims 1 to 8, wherein, The filter membrane structure (6) includes a filter membrane (61) and a support member (62) for supporting the filter membrane (61), wherein the filter membrane (61) is disposed outside or inside the support member (62).

10. The fecal sample collection and treatment device of claim 9, wherein, The filter membrane (61) is sleeved on the outside of the carrier (62), and the sealing connection between the top of the filter membrane (61) and the inner tube (2) is higher than the diaphragm (5).

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