Collection parts and collection devices

Abstract

The present invention provides a collection piece and collection device. The collection piece comprises: a body having a gripping end and a collection end disposed opposite each other, the collection end being provided with a collection hole; a solid collection portion disposed at the collection end and used to collect solid samples; and a suction and discharge member disposed at the end of the body opposite the collection end and connected to the collection hole, for sucking or discharging liquid samples through the collection hole. The technical solution provided in this application can address the problem that existing collection pieces cannot meet collection requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a collection piece and a collection device. Background Art

[0002] At present, stool testing is a routine clinical test item. During the stool testing process, stool samples need to be collected with the help of a collection spoon or a collection stick.

[0003] The Bristol Stool Scale is a medical classification system for feces, which divides stool into seven categories based on its shape: Type 1: hard balls (difficult to pass); Type 2: sausage-shaped, but with an uneven surface; Type 3: sausage-shaped, but with cracks on the surface; Type 4: like a sausage or snake, with a smooth surface; Type 5: soft lumps with smooth edges (easy to pass); Type 6: fluffy lumps with rough edges, mushy stool; Type 7: watery, with no solid lumps (completely liquid).

[0004] In the prior art, the structure of the collection piece is relatively simple, and the stool sample is usually collected by rotating. During the sampling process, since stool can be solid or liquid (such as the 7 types of stool in the Bristol Stool Classification System mentioned above), the existing collection piece is only suitable for collecting solid stool (the first to fifth types of stool in the Bristol Stool Classification System). It is not easy to collect liquid stool (the sixth and seventh types of stool in the Bristol Stool Classification System, especially the seventh type of stool), which affects the collection efficiency. In addition, the long collection time will affect the sample quality. Therefore, the existing collection piece cannot meet the needs of collecting different types of stool. Summary of the Invention

[0005] The present invention provides a collecting piece and a collecting device to solve the problem that the collecting piece in the prior art cannot meet the collection needs.

[0006] According to one aspect of the present invention, a collection piece is provided, comprising: a body having a gripping end and a collection end oppositely disposed, the collection end being provided with a collection hole; a solid collection portion disposed at the collection end and used to collect solid samples; and a suction and discharge piece disposed at the other end of the body opposite to the collection end and connected to the collection hole, the suction and discharge piece sucking or discharging a liquid sample through the collection hole.

[0007] Furthermore, the main body is a tubular structure, and the tubular structure passes through the solid collection part.

[0008] Furthermore, the solid collection portion includes: a plurality of convex walls, which are arranged at intervals along the circumferential direction of the collection end, and a sample collection area is formed between two adjacent convex walls.

[0009] Furthermore, a through hole is provided on the surface of at least one convex wall, and the through hole is communicated with the sample collection area.

[0010] Furthermore, the convex wall has a free end and a connecting end that are arranged opposite to each other, the connecting end of the convex wall is connected to the side wall of the collecting end, and the thickness of the free end is smaller than the thickness of the connecting end.

[0011] Furthermore, the convex wall is bent in a direction away from the main body, and the bending direction of each convex wall is the same.

[0012] Furthermore, the solid collecting part includes: a collecting shell, which is sleeved on the collecting end, has a collecting cavity inside the collecting shell, and the surface of the collecting shell is a porous structure.

[0013] Furthermore, the collection shell is a spherical structure.

[0014] According to another aspect of the present invention, a collection device is provided, comprising: a collection piece, which is the collection piece provided above; a mixing tube, which is used to mix the sample with the preservation solution to form a mixed solution, and one end of the mixing tube is detachably connected to the collection piece.

[0015] Furthermore, the collection device also includes: a liquid holding tube for storing the preservation liquid or the mixed liquid, the liquid holding tube and the other end of the mixing tube being detachably connected; a valve body assembly, arranged between the mixing tube and the liquid holding tube, the valve body assembly having an open state and a closed state, when the valve body assembly is in the open state, the mixing tube and the liquid holding tube are connected; when the valve body assembly is in the closed state, the mixing tube and the liquid holding tube are separated.

[0016] Furthermore, the valve body assembly includes: a first valve body, one end of the first valve body is connected to one of the mixing tube and the liquid holding tube; a second valve body, one end of the second valve body is connected to the other of the mixing tube and the liquid holding tube, and the other end of the second valve body is connected to the other end of the first valve body, and the second valve body has a connecting hole, which is used to connect the mixing tube and the liquid holding tube; a sealing assembly is arranged at the connecting hole, and the sealing assembly has a blocking position for blocking the connecting hole and a conducting position for conducting the connecting hole; a filter element is arranged between the sealing assembly and the mixing tube, or between the sealing assembly and the liquid holding tube.

[0017] Furthermore, the position between the first valve body and the second valve body is adjustable, and the blocking assembly is driven to move between the blocking position and the conducting position by adjusting the relative position between the first valve body and the second valve body.

[0018] Furthermore, the blocking component includes: a blocking member, which is arranged corresponding to the communicating hole, and the blocking member has a blocking end and an abutting end which are relatively arranged, the abutting end is arranged toward the first valve body, and the blocking end is arranged toward the communicating hole, and the blocking end is used to block the communicating hole; an elastic member, one end of the elastic member is connected to the second valve body, and the other end of the elastic member is connected to the blocking member; when the first valve body and the second valve body move toward each other, the first valve body squeezes the elastic member through the blocking member to move the blocking end of the blocking member to the blocking position; when the first valve body and the second valve body move away from each other, the elastic member drives the blocking member to move from the blocking position to the conducting position.

[0019] Furthermore, the sealing member includes a disc body and a guide column, the guide column is arranged on the side of the disc body facing the second valve body, the elastic member is sleeved on the guide column, a plurality of filtrate holes are provided on the disc body, and an annular protrusion is provided on the side of the disc body facing the second valve body, the guide column is located in the annular protrusion, and the annular protrusion is used to seal the connecting hole.

[0020] Furthermore, the guide column is a prism structure, and the side wall surface of the prism is a curved surface.

[0021] Furthermore, the first valve body and the second valve body are threadedly connected.

[0022] Furthermore, the collection device also includes: a filter element, which is arranged between the blocking component and the mixing tube.

[0023] Applying the technical solution of the present invention, the collection piece includes a main body, a solid collection portion, and a suction and discharge piece. The main body has a gripping end and a collection end that are relatively arranged, and the collection end is provided with a collection hole. Specifically, the solid collection portion is provided at the collection end, and the suction and discharge piece is provided at the other end opposite to the collection end of the main body and is connected to the collection hole. When feces sampling is required, the solid collection portion can be used to quantitatively collect solid samples, and the suction and discharge piece can be controlled in combination with the collection hole to quantitatively absorb or discharge liquid samples. With the above structure, the collection piece is suitable for quantitatively collecting both solid feces and liquid feces, thereby improving the collection efficiency and meeting the feces collection needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 An exploded view of a collection device according to an embodiment of the present invention is shown;

[0026] Figure 2 A cross-sectional view of a collection device according to an embodiment of the present invention is shown;

[0027] Figure 3Shown Figure 1 A schematic diagram of the structure of the collection component in FIG;

[0028] Figure 4 Shown Figure 1 A partial enlarged view of the collection piece in FIG;

[0029] Figure 5 Shown Figure 1 A bottom view of the collection piece in FIG;

[0030] Figure 6 Shown Figure 1 Another structural schematic diagram of the collection component in FIG;

[0031] Figure 7 Shown Figure 1 A partial enlarged view of the collection piece in FIG;

[0032] Figure 8 Shown Figure 1 A schematic diagram of the structure of the blocking member;

[0033] Figure 9 Shown Figure 1 A schematic structural diagram of the second valve body;

[0034] Figure 10 Shown Figure 1 Another structural schematic diagram of the second valve body in.

[0035] The above drawings include the following reference numerals:

[0036] 10. Main body; 11. Collection hole;

[0037] 20. Solid collection portion; 21. Convex wall; 211. Through hole; 212. Free end; 213. Connecting end; 22. Collection shell;

[0038] 30. Suction and exhaust parts;

[0039] 40. Mixing tube;

[0040] 50. Liquid holding tube;

[0041] 60. Valve body assembly; 61. First valve body; 62. Second valve body; 621. Communication hole; 63. Blocking assembly; 631. Blocking member; 631a. Disc body; 631b. Guide post; 631c. Filtrate hole; 631d. Annular protrusion; 632. Elastic member;

[0042] 70. Filter element. DETAILED DESCRIPTION

[0043] 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. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] like Figure 2 、 Figure 3 、 Figure 4 As shown, the present invention provides a collection member comprising a body 10, a solid collection portion 20, and a suction and discharge member 30. The body 10 has a gripping end and a collection end disposed opposite each other, with the collection end being provided with a collection hole 11. By placing the solid collection portion 20 at the collection end, solid samples can be collected using the solid collection portion 20. By placing the suction and discharge member 30 at the end of the body opposite the collection end and communicating with the collection hole 11, liquid samples can be aspirated or discharged through the collection hole 11 using the suction and discharge member 30, thereby enabling the simultaneous collection of both solid and liquid feces.

[0045] In a specific embodiment, Figures 1 to 10As shown, according to an embodiment of the present invention, a collection piece is provided, comprising a main body 10, a solid collection portion 20, and a suction and discharge piece 30. The main body 10 has a gripping end and a collection end disposed opposite each other, and the collection end is provided with a collection hole 11. By disposing the solid collection portion 20 at the collection end, solid samples can be collected using the solid collection portion 20. By disposing the suction and discharge piece 30 at the other end of the main body opposite the collection end and communicating with the collection hole 11, the suction and discharge piece 30 can be used to absorb or discharge liquid samples through the collection hole 11, thereby enabling the simultaneous collection of solid and liquid feces. Specifically, the diameter of the collection hole 11 is 2 mm. In this embodiment, the suction and discharge piece 30 is a liquid gel cap connected to the gripping end of the main body 10. The size of the gel head can be adjusted according to the reagent requirement, and graduations or printing can be provided on the collection piece as needed. When collecting liquid feces, by squeezing the liquid gel cap, the sample enters the collection hole 11 under the action of a pressure differential, thereby achieving quantitative collection of aqueous samples. In other embodiments, the suction and discharge member 30 can be a syringe-like structure, a vacuum pump, or the like, as long as the suction and discharge member 30 can generate negative pressure to absorb or discharge a liquid sample. Using the collection member provided in this embodiment, by providing a solid collection portion 20 at the collection end of the body 10 and connecting the suction and discharge member 30 to the collection hole 11, when feces sampling is required, the solid collection portion can be used to collect solid samples, while the suction and discharge member can be used to absorb or discharge liquid samples through the collection hole. This arrangement is suitable for collecting both solid feces (classes 1 to 5 of the Bristol Stool Classification) and liquid feces (classes 6 and 7 of the Bristol Stool Classification, particularly class 7). This arrangement allows for the collection of solid or liquid feces, or both solid and liquid feces (such as class 6 of the Bristol Stool Classification) simultaneously, as needed. This improves collection efficiency and meets feces collection needs. Furthermore, the collecting member may be the aforementioned integrated dry and wet collecting portion, or the solid collecting portion 20 and the body 10 may be configured as mutually detachable independent structures.

[0046] It should be noted that the present invention collects solid samples via the solid collection portion 20 and aspirates or discharges liquid samples via the collection hole using the suction and discharge member in conjunction with the collection hole. Depending on the specific situation, the space for accommodating the solid sample in the solid collection portion 20 is set to a desired size, the degree of negative pressure generated by the suction and discharge member 30 is set to a desired level, or the volume of the conduit between the suction and discharge member 30 and the collection hole 11 is set to a desired level, thereby enabling quantitative collection of solid or liquid samples. Quantitative collection is not based on a specific point value, but rather on obtaining an appropriate amount of sample, ensuring that the amount collected is neither too much nor too little.

[0047] In this embodiment, the body 10 is a tubular structure, and the tubular structure passes through the solid collection portion. Specifically, the collection hole 11 is set through the body 10, thereby forming a tubular structure.

[0048] like Figures 3 to 5 As shown, the solid collection portion 20 includes a plurality of convex walls 21 spaced apart along the circumference of the collection end, with a sample collection area formed between adjacent convex walls 21. The number of convex walls 21 can be adjusted based on actual needs, such as 3, 5, 8, or 10 convex walls 21. The space in the collection area can be adjusted to a desired size as needed. When the collection piece is used to collect solid feces, the feces sample can be collected in the sample collection area. When the solid feces fills the sample collection area of ​​the solid collection portion 20, quantitative sample collection is completed. In this embodiment, the solid collection portion 20 includes four convex walls 21, which are evenly spaced apart along the circumference of the collection end. By adjusting the height of the solid collection portion 20 and the width of the convex walls 21, quantitative fecal sample collection can be achieved.

[0049] To facilitate mixing of the stool sample with the preservation solution, a through hole 211 is provided on the surface of at least one convex wall 21, and the through hole 211 is connected to the sample collection area. By providing the through hole 211 on the surface of the convex wall 21, when the stool sample needs to be mixed with the preservation solution, the preservation solution can be flushed against the convex wall 21 through the through hole 211, preventing the stool sample from sticking to the convex wall 21 and being difficult to fall off. This structure facilitates the homogenization of the stool sample and the preservation solution. Specifically, due to the small size of the collection piece and the narrow structure of the convex wall 21, in order to maximize the aperture to allow the liquid and sample to pass through the aperture, it is considered to design the through hole 211 as a small rectangular hole. The through hole 211 can also be designed as a circular hole or other hole shape according to the specific usage. The through hole 211 can be provided on alternate convex walls 21 or on all convex walls 21. In this embodiment, two of the four convex walls 21 that are spaced apart are provided with through holes 211 , and each convex wall 21 is spaced apart with three rectangular small holes along the length direction.

[0050] The convex wall 21 has a free end 212 and a connecting end 213 disposed opposite each other. The connecting end 213 of the convex wall 21 is connected to the side wall of the collection end. By setting the thickness of the free end 212 to be smaller than the thickness of the connecting end 213, it is easier to insert the solid collection portion 20 into the solid feces when the collection member is used to collect solid feces. It is also easier to reduce the resistance of the convex wall 21 when the collection member is rotated, thereby facilitating sample collection.

[0051] Specifically, the convex walls 21 curve away from the body 10, and each convex wall 21 curves in the same direction. For example, they may all curve clockwise, counterclockwise, or in other configurations. In this embodiment, the convex walls 21 form a wheel-like fan-shaped structure along a clockwise direction. The opening direction, angle, and number of the convex walls 21, as well as the shape, diameter, and number of the holes on the convex walls 21 and the height of the convex walls 21 can all be adjusted accordingly based on actual sampling requirements.

[0052] like Figure 6 and Figure 7 As shown, the present invention provides another embodiment of a collection member. In this embodiment, the solid collection portion 20 of the collection member can also adopt the structural design of a collection shell 22. The collection shell 22 is mounted on the collection end, and the collection shell 22 has a collection cavity. The surface of the collection shell 22 has a porous structure. The space of the collection cavity is set to the required size as needed. Using the above structure, when solid feces is collected using the solid collection portion 20, the solid feces can enter the collection cavity through the porous structure on the surface of the collection shell 22, thus completing the quantitative collection of the sample. In this embodiment, the collection shell 22 has multiple ribs, and the multiple ribs are staggered. Multiple hole-shaped structures are formed between the multiple ribs, so that the collection shell 22 has a porous surface and a certain internal storage space.

[0053] Specifically, the collection shell 22 is a spherical structure. When it is necessary to collect samples, the spherical collection shell 22 does not need to adjust the use direction of the solid collection part 20, which has the advantage of being easy to use and can improve collection efficiency.

[0054] like Figure 1 and Figure 2 As shown, according to another embodiment of the present invention, a collection device is provided, which includes a collection piece and a mixing tube 40. The collection piece is the collection piece provided above, and the mixing tube 40 is used to mix the sample with the preservation liquid to form a mixed liquid. Specifically, one end of the mixing tube 40 is detachably connected to the collection piece. In this embodiment, the diameter of the tube mouth of the mixing tube 40 is larger than the diameter of the tube body. Such a setting facilitates the collection piece stained with fecal samples to penetrate into the tube, preventing the fecal sample from hitting the tube mouth or the user's hand, thereby improving the user's collection experience. In addition, there is a stainless steel ball with a diameter of 5-7 mm in the mixing tube 40, which is used for sample homogenization operations.

[0055] In this embodiment, the mixing tube 40 primarily achieves sample mixing and homogenization through the design of the steel ball and the solid collection portion 20. This step can also be achieved by designing a brush or other structure on the bottom or sidewall of the mixing tube 40 that matches the solid collection portion 20. Alternatively, the connection between the solid collection portion 20 and the body 10 can be designed to be breakable, with the breakable solid collection portion 20 replacing the function of the steel ball. For example, a fold can be provided. After sample collection is completed, the operator tilts the collection piece into the mixing tube 40 and applies a certain force, breaking the fold and allowing the solid collection portion 20 and the collection end, or a portion of the collection end, to fall into the mixing tube 40. Alternatively, the solid collection portion 20 can be connected to the body 10 via a breakable snap-fit ​​structure. After sample collection is completed, the snap-fit ​​structure is released, allowing the solid collection portion 20 and the collection end, or a portion of the collection end, to fall into the mixing tube.

[0056] The collection device further includes a liquid collection tube 50 and a valve assembly 60. The liquid collection tube 50 is used to store the preservation solution or mixed solution. The liquid collection tube 50 is detachably connected to the other end of the mixing tube 40. The valve assembly 60 is disposed between the mixing tube 40 and the liquid collection tube 50. Specifically, the valve assembly 60 has an open state and a closed state. When the valve assembly 60 is in the open state, the mixing tube 40 and the liquid collection tube 50 are in communication; when the valve assembly 60 is in the closed state, the mixing tube 40 and the liquid collection tube 50 are separated. In this embodiment, the bottom and side of the liquid collection tube 50 can be printed with a one-dimensional or two-dimensional code for sample tracking and recording. The one-dimensional or two-dimensional code can be applied to the bottom and side of the liquid collection tube 50 by pasting, spray painting, or other methods.

[0057] Furthermore, after separating the liquid holding tube 50 from the mixing tube, the valve body assembly 60 on the upper portion of the liquid holding tube 50 can be replaced with a tube cap as needed. Preferably, the tube cap has a hexagonal groove and a hexagonal bottom or a hexagonal groove. The cap and tube bottom structure can be secured by a corresponding opening instrument, enabling automated opening of the instrument to facilitate subsequent sample testing.

[0058] Specifically, the valve body assembly 60 includes a first valve body 61, a second valve body 62, a blocking assembly 63 and a filter element 70. One end of the first valve body 61 is connected to one of the mixing tube 40 and the liquid holding tube 50, one end of the second valve body 62 is connected to the other of the mixing tube 40 and the liquid holding tube 50, and the other end of the second valve body 62 is connected to the other end of the first valve body 61. In addition, the second valve body 62 has a connecting hole 621, which is used to connect the mixing tube 40 and the liquid holding tube 50. Specifically, the blocking assembly 63 is arranged at the connecting hole 621, and the blocking assembly 63 has a blocking position for blocking the connecting hole 621 and a conducting position for conducting the connecting hole 621. The filter element 70 is arranged between the blocking assembly 63 and the mixing tube 40, or between the blocking assembly 63 and the liquid holding tube 50. In this embodiment, one end of the first valve body 61 is connected to the mixing tube 40 , one end of the second valve body 62 is connected to the liquid storage tube 50 , and the filter element 70 is disposed between the blocking assembly 63 and the mixing tube 40 .

[0059] like Figure 9 and Figure 10 As shown, the position between the first valve body 61 and the second valve body 62 is adjustable. By adjusting the relative position between the first valve body 61 and the second valve body 62, the blocking assembly 63 is driven to move between the blocking position and the conducting position. The position between the first valve body 61 and the second valve body 62 can be adjusted by pushing or pulling, or a threaded structure can be provided between the first valve body 61 and the second valve body 62, and the relative position between the two can be adjusted by rotating the first valve body 61 or the second valve body 62. In this embodiment, a threaded structure is provided between the first valve body 61 and the second valve body 62.

[0060] Specifically, the blocking assembly 63 includes a blocking member 631 and an elastic member 632. The elastic member 632 is preferably a spring. The blocking member 631 is disposed corresponding to the connecting hole 621. The blocking member 631 has a blocking end and an abutting end disposed opposite each other. The abutting end is disposed toward the first valve body 61, and the blocking end is disposed toward the connecting hole 621. The blocking end is used to block the connecting hole 621. Specifically, one end of the spring is connected to the second valve body 62, and the other end of the spring is connected to the blocking member 631. Specifically, three support points are provided in the second valve body 62, which can be used to support the spring. When the first valve body 61 and the second valve body 62 move toward each other, the first valve body 61 squeezes the spring through the blocking member 631, so that the blocking end of the blocking member 631 moves to the blocking position. When the first valve body 61 and the second valve body 62 move away from each other, the spring drives the blocking member 631 to move from the blocking position to the conducting position.

[0061] like Figure 8As shown, the blocking member 631 includes a disc body 631a and a guide post 631b, and the body 631a and the guide post 631b are an integrally formed structure, and the blocking member 631 as a whole has a planar umbrella-shaped structure. Specifically, the guide post 631b is arranged on the side of the disc body 631a facing the second valve body 62, and a spring is sleeved on the guide post 631b. Among them, the disc body 631a is provided with a plurality of filtrate holes 631c, and a tripod structure is provided in the middle of the disc body 631a spaced apart from the filtrate holes 631c, which mainly serves to reinforce the circumference of the disc body 631a. In addition, an annular protrusion 631d is provided on the side of the disc body 631a facing the second valve body 62, and the guide post 631b is located within the annular protrusion 631d. The annular protrusion 631d is used to block the connecting hole 621.

[0062] The diameter of the connecting hole 621 is slightly smaller than that of the annular protrusion 631d. When the annular protrusion 631d contacts the connecting hole 621, it completely blocks the connecting hole 621, achieving a sealed effect. Specifically, the guide post 631b has a prismatic structure with curved sidewalls. In this embodiment, the guide post 631b is a three-pronged columnar structure. The cavity formed between the two prongs of the three-pronged structure facilitates the drainage of liquid from the filtrate hole 631c into the liquid holding tube 50.

[0063] In this embodiment, the first valve body 61 and the second valve body 62 are threadedly connected. By rotating the first valve body 61 or the second valve body 62, the relative position of the first valve body 61 or the second valve body 62 can be adjusted, thereby driving the blocking assembly 63 to move between a blocking position and a conducting position. Furthermore, the threads of the first and second valve bodies 61 and 62 are forward-threaded, while the threads of the second valve body 62 connected to the liquid holding tube 50 are reverse-threaded, preventing accidental opening of the liquid holding tube during filtration.

[0064] Specifically, the nozzle and bottom of the mixing tube 40 are both threaded, enabling a threaded connection between the collection member and the mixing tube 40. The mixing tube 40 is also threadedly connected to the first valve body 61. The collection member comprises a liquid gel cap, a solid collection portion 20, and a mixing tube cover. The solid collection portion 20 is connected to the mixing tube cover, which is threadedly connected to the mixing tube 40 to connect the collection member and the mixing tube 40. Furthermore, the second valve body 62 is threadedly connected to the liquid holding tube 50. The threads of the mixing tube 40 and the first valve body 61 rotate in the opposite direction to the threads of the second valve body 62 and the liquid holding tube 50, preventing the user from twisting both the mixing tube 40 and the liquid holding tube 50 simultaneously during operation.

[0065] In order to filter out impurities in the sample, the collection device also includes a filter element 70, which is arranged between the blocking component 63 and the mixing tube 40. In this embodiment, the filter element 70 is a filter mesh with small holes of 1 mm in diameter on the upper part of the filter mesh, which is mainly used to filter large particles of residue in feces, and the pore size and number of layers of the filter mesh can be adjusted according to actual needs. Among them, after the sample passes through this structure to filter out large particles of residue, on the one hand, it can improve the preservation effect of the sample in the protective liquid to a certain extent, and on the other hand, it can avoid large particles clogging the pipette tip during subsequent detection and sampling, affecting the sampling of the pipette or pipetting instrument.

[0066] In this embodiment, a sealing ring is provided between the valve body assembly 60 and the filter element 70, which is mainly used to improve the sealing performance of the collection device and prevent liquid from overflowing.

[0067] In this embodiment, the collecting part, the mixing tube 40 and the liquid holding tube 50 are connected in sequence. In other embodiments, the assembly order and structural position of the components can be combined and adjusted according to actual use needs, manufacturing process, manufacturing cost, etc.

[0068] To facilitate understanding of the device provided in this embodiment, the following is an explanation of the acquisition process:

[0069] 1) Before use, the valve body assembly 60 is in a closed state, and a certain volume of sample protection liquid is contained in the liquid storage tube 50.

[0070] 2) When collecting a sample, the cap of the mixing tube is opened by rotating it, and the main body 10 is taken out by holding the cap.

[0071] 3) Sampling: If the stool sample is solid, insert the solid collection unit 20 vertically into the stool sample and rotate it clockwise 1-3 times. To increase sample diversity, samples can be collected at 2-3 locations, rotating each location 1-2 times clockwise as needed. If collecting liquid stool, squeeze the gel tip on the main body 10 to collect a sufficient amount of sample. The sample enters the collection unit through the collection hole 11. After collection, tighten the mixing tube cap onto the mixing tube 40.

[0072] 4) According to the prompt on the outside of the valve body assembly 60, rotate the first valve body 61 to move the blocking assembly 63 to the conducting position, so that the valve body assembly 60 is in the open state.

[0073] 5) Turn the collection device upside down, and the preservation solution in the liquid storage tube 50 enters the mixing tube 40 through the connecting hole 621 and the filter screen.

[0074] 6) According to the instructions on the outside of the valve body assembly 60, rotate the first valve body 61 to move the blocking assembly 63 to the blocking position, so that the valve body assembly 60 is in a closed state.

[0075] 7) Hold the collection tube upright. If it is a solid stool sample, invert the steel ball several dozen times to disperse the sample into the protective solution to achieve homogenization. If it is a liquid stool sample, squeeze the gel tip to disperse and mix the sample into the protective solution.

[0076] 8) After the sample is fully homogenized, according to the instructions on the outside of the valve body assembly 60, rotate the first valve body 61 to move the blocking assembly 63 to the conducting position, so that the valve body assembly 60 is in the open state.

[0077] 9) After homogenization, the sample passes through the filter screen and sealing member 631 and enters the liquid holding tube 50, where large particles, impurities, and fibers are filtered out. During this time, the gel head can be squeezed to accelerate sample filtration. Furthermore, the liquid holding tube 50 can be a soft rubber tube, and squeezing the liquid holding tube 50 can accelerate liquid filtration.

[0078] 10) According to the instructions on the outside of the valve body assembly 60, rotate the first valve body 61 to move the blocking assembly 63 to the blocking position, so that the valve body assembly 60 is in a closed state.

[0079] 11) The valve body assembly 60 can be modified into a specific pipe cover according to transportation, storage or testing requirements.

[0080] The operations after step 7) can be performed by the user who takes the sample, or can be completed by sending the sample to a sample testing center afterwards.

[0081] The device provided by this embodiment has the following beneficial effects:

[0082] (1) The collecting piece can collect solid feces or liquid feces separately, or can collect solid feces and liquid feces at the same time, which can meet the needs of feces collection.

[0083] (2) The collection piece can realize the quantitative collection of appropriate amount of samples.

[0084] (3) The wide-mouth design of the mixing tube 40 greatly facilitates the timely, safe and hygienic placement of the sample-stained collection piece into the mixing tube 40, avoiding the user's worry about feces touching the tube mouth or getting on their hands.

[0085] (4) The collection device can realize the homogenization operation of the sample and filter out the large particle residue in the fecal sample.

[0086] (5) The collection device simultaneously realizes the requirements of quantitative collection, sample homogenization, residue filtration, and preventing spillage of the preservation solution.

[0087] (6) Through the above method, users can obtain a better sampling experience during the entire sampling process, such as as few sampling operations as possible and no need to worry about the preservation solution spilling and contacting.

[0088] (7) The samples processed as above can meet the high-throughput and high-efficiency requirements of testing centers / hospitals for sample processing and testing.

[0089] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0090] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0091] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0092] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0093] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0094] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A collection device, characterized in that: The collection device comprises: A collection piece, the collection piece comprising a body (10), a solid collection portion (20) and a suction and discharge piece (30), the body (10) having a gripping end and a collection end arranged opposite to each other, the collection end being provided with a collection hole (11), the solid collection portion (20) being arranged at the collection end, the solid collection portion (20) being used to collect solid samples, the suction and discharge piece (30) being arranged at the other end opposite to the collection end of the body and being in communication with the collection hole (11), the suction and discharge piece (30) being used to absorb or discharge liquid samples through the collection hole (11); A mixing tube (40) is used to mix the sample with the preservation solution to form a mixed solution, and one end of the mixing tube (40) is detachably connected to the collection member; A liquid storage tube (50) is used to store the preservation liquid or the mixed liquid, and the liquid storage tube (50) is detachably connected to the other end of the mixing tube (40); a valve body assembly (60) disposed between the mixing tube (40) and the liquid holding tube (50); the valve body assembly (60) has an open state and a closed state; when the valve body assembly (60) is in the open state, the mixing tube (40) is connected to the liquid holding tube (50); when the valve body assembly (60) is in the closed state, the mixing tube (40) is separated from the liquid holding tube (50); The valve body assembly (60) includes a first valve body (61), a second valve body (62), a blocking assembly (63) and a filter element (70), one end of the first valve body (61) is threadedly connected to the mixing tube (40), one end of the second valve body (62) is threadedly connected to the liquid holding tube (50), the thread rotation direction of the mixing tube (40) and the first valve body (61) is opposite to the thread rotation direction of the second valve body (62) and the liquid holding tube (50), the other end of the second valve body (62) is connected to the other end of the first valve body (61), and the second valve body (62) has a connecting hole (621), which is used to connect the mixing tube (40) and the The liquid holding pipe (50); the blocking component (63) is arranged at the communicating hole (621), and the blocking component (63) has a blocking position for blocking the communicating hole (621) and a conducting position for conducting the communicating hole (621); the position between the first valve body (61) and the second valve body (62) is adjustable, and the blocking component (63) is driven to move between the blocking position and the conducting position by adjusting the relative position between the first valve body (61) and the second valve body (62); the filter element (70) is arranged between the blocking component (63) and the mixing pipe (40), or between the blocking component (63) and the liquid holding pipe (50); The blocking component (63) includes a blocking member (631), the blocking member (631) is arranged corresponding to the communicating hole (621), the blocking member (631) has a blocking end and an abutting end arranged opposite to each other, the abutting end is arranged toward the first valve body (61), the blocking end is arranged toward the communicating hole (621), and the blocking end is used to block the communicating hole (621), the blocking member (631) includes a disc body (631a) and a guide column (631b), the guide column (631b) is arranged in the On the side of the disc body (631a) facing the second valve body (62), the guide column (631b) is a prismatic structure, and the side wall surface of the prism is a curved surface. A plurality of filtrate holes (631c) are provided on the disc body (631a). An annular protrusion (631d) is provided on the side of the disc body (631a) facing the second valve body (62). The guide column (631b) is located in the annular protrusion (631d), and the annular protrusion (631d) is used to seal the connecting hole (621).

2. The collection device according to claim 1, characterized in that: The body (10) is a tubular structure, and the tubular structure passes through the solid collection portion (20).

3. The collection device according to claim 2, characterized in that: The solid collection part (20) includes: A plurality of convex walls (21) are arranged at intervals along the circumferential direction of the collection end, and a sample collection area is formed between two adjacent convex walls (21).

4. The collection device according to claim 3, characterized in that: A through hole (211) is provided on the surface of at least one of the convex walls (21), and the through hole (211) is communicated with the sample collection area.

5. The collection device according to claim 3, characterized in that: The convex wall (21) has a free end (212) and a connecting end (213) that are arranged opposite to each other. The connecting end (213) of the convex wall (21) is connected to the side wall of the collecting end. The thickness of the free end (212) is smaller than the thickness of the connecting end (213).

6. The collection device according to claim 3, characterized in that: The convex walls (21) are bent in a direction away from the main body (10), and the bending direction of each convex wall (21) is the same.

7. The collection device according to claim 2, characterized in that: The solid collection part (20) includes: A collection shell (22) is sleeved on the collection end, the collection shell (22) has a collection cavity therein, and the surface of the collection shell (22) is a porous structure.

8. The collection device according to claim 7, characterized in that: The collection shell (22) is a spherical structure.

9. The collection device according to claim 1, characterized in that: The blocking component (63) further comprises: An elastic member (632), one end of the elastic member (632) is connected to the second valve body (62), and the other end of the elastic member (632) is connected to the blocking member (631); the elastic member (632) is sleeved on the guide column (631b), and when the first valve body (61) and the second valve body (62) move toward each other, the first valve body (61) squeezes the elastic member (632) through the blocking member (631) to move the blocking end of the blocking member (631) to the blocking position; when the first valve body (61) and the second valve body (62) move away from each other, the elastic member (632) drives the blocking member (631) to move from the blocking position to the conducting position.

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