A mouse feces collector

By designing a conical funnel and staggered channel structure in the mouse fecal collector, urine and feces can be collected separately, solving the problem of urine and feces mixing and improving sample purity and detection accuracy.

CN224419676UActive Publication Date: 2026-06-30FIRST AFFILIATED HOSPITAL OF XINJIANG MEDICAL UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FIRST AFFILIATED HOSPITAL OF XINJIANG MEDICAL UNIVERSITY
Filing Date
2025-07-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing mouse fecal collectors often result in urine and feces mixing during collection, leading to sample degradation and affecting the accuracy of subsequent nucleic acid extraction and component analysis.

Method used

A mouse feces collector was designed, comprising a conical funnel, a support plate, and staggered urine and feces channels. The support plate and a pushing component are used to separate urine and feces, which are then collected using a magnetic collection box.

Benefits of technology

This effectively avoids the mixing of urine and feces, improving sample purity and ensuring the accuracy of subsequent testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of sampler technology and discloses a mouse feces sampler, including a support frame with an installation groove on the support frame, and a feces collection unit placed inside the installation groove. The feces collection unit includes a conical funnel located inside the installation groove, with an upper connecting frame on the upper edge of the conical funnel, and a mesh plate installed on the upper connecting frame. The feces collection unit also includes a feces and urine separation component, which includes a support plate disposed inside the conical funnel, below the mesh plate. The conical funnel has urine channels and feces channels. By setting up the support plate and opening staggered urine and feces channels on the support plate, urine can enter the dedicated channel on its own, while feces fall into the other channel under the push of the pushing component, preventing them from mixing and avoiding contamination, thus improving sample purity.
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Description

Technical Field

[0001] This utility model relates to the field of collector technology, and in particular to a mouse feces collector. Background Technology

[0002] Mouse fecal collection is an important step in mouse gut microbiota research. The routine method for collecting mouse fecal samples is to first place a sterile mat in each mouse cage, then place one mouse in the cage, and collect the feces into a test tube after the mouse defecates.

[0003] Existing mouse fecal collectors have the following problems in practical use: most of them rely on a single grid plate to collect excrement, which makes it easy for urine and feces to mix. This not only degrades the fecal sample but also affects the accuracy of subsequent nucleic acid extraction, component analysis and other tests. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a mouse feces collector to overcome the above-mentioned shortcomings in the prior art.

[0005] Technical solution: A mouse feces collector, including a support, a mounting groove on the support, and a feces collection unit placed inside the mounting groove;

[0006] The fecal collection unit includes a conical funnel located inside the installation groove, with an upper connecting frame provided on the upper edge of the conical funnel, and a mesh plate installed on the upper connecting frame;

[0007] Furthermore, the fecal collection unit also includes a fecal and urine separation component, which includes a support plate disposed inside the conical funnel and located below the mesh plate. The conical funnel is provided with a urine channel and a fecal channel, and the urine channel and the fecal channel are arranged in an alternating manner.

[0008] A conical block is provided above the support plate, and several guide plates are arranged one-to-one above the fecal channel on the conical block, with the end of the guide plate away from the conical block fixedly connected to the inner wall of the conical funnel.

[0009] As a further description of the above technical solution: a pushing component is provided between the support plate and the conical block. The pushing component includes a rotating shaft rotatably connected to the bottom surface of the conical block, and a servo motor for driving the rotating shaft to rotate is provided on the conical block. The rotating shaft is connected to a push plate through a connecting rod, and the push plate is located between the support plate and the guide plate.

[0010] As a further description of the above technical solution: a diversion hopper is provided directly below the support plate, and a connecting pipe is connected through the lower end of the diversion hopper. The bottom of the fecal channel is located inside the diversion hopper, and the bottom of the urine channel is located outside the diversion hopper.

[0011] As a further description of the above technical solution: a lower connecting frame is provided at the bottom edge of the conical funnel, and an upper magnet is provided on the bottom surface of the lower connecting frame;

[0012] Furthermore, a collection box is provided directly below the conical funnel, and a lower magnet is provided on the top wall of the collection box to be used in conjunction with the upper magnet.

[0013] As a further description of the above technical solution: the collection box includes a urine collection chamber and a feces collection chamber, the feces collection chamber being located directly below the connecting tube.

[0014] As a further description of the above technical solution: the diameter of the fecal channel is larger than the diameter of the urine channel, and the fecal channel is arranged at an angle, while the urine channel is arranged vertically relative to the support.

[0015] As a further description of the above technical solution: a fence is provided above the bracket, located outside the mesh plate, a positioning rod is provided at the bottom of the fence, and a positioning groove is provided on the bracket to cooperate with the positioning rod.

[0016] As a further description of the above technical solution: the fence has a window, and a food box is provided on the inner side of the bracket, located below the window.

[0017] Beneficial effects: By setting a support plate inside the conical funnel and opening staggered urine and fecal channels on the support plate, urine can enter the dedicated channel on its own, while feces fall into another channel under the push of the push component, so they do not mix and avoid mixing contamination, thus improving sample purity. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a mouse feces collector proposed in this utility model;

[0019] Figure 2 This is an exploded view of the overall structure of this utility model;

[0020] Figure 3 This is a partial exploded view of the structure of this utility model;

[0021] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 5This is a partial three-dimensional structural diagram of the present invention.

[0023] Legend:

[0024] 1. Bracket; 2. Mounting slot; 3. Conical funnel; 4. Upper connecting frame; 5. Mesh plate; 6. Enclosure; 7. Positioning rod; 8. Positioning slot; 9. Window; 10. Feeding box; 11. Lower connecting frame; 12. Upper magnet; 13. Collection box; 14. Lower magnet; 15. Urine collection chamber; 16. Feces collection chamber; 17. Support plate; 18. Conical block; 19. Rotating shaft; 20. Connecting rod; 21. Push plate; 22. Guide plate; 23. Urine channel; 24. Feces channel; 25. Diverting hopper; 26. Connecting pipe. Detailed Implementation

[0025] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figure 1 - Figure 5 A mouse feces collector includes a support 1, on which a mounting groove 2 is provided, and a feces collection unit is placed inside the mounting groove 2.

[0027] The feces collection unit includes a conical funnel 3 located inside the mounting slot 2. An upper connecting frame 4 is provided on the upper edge of the conical funnel 3. A mesh plate 5 is installed on the upper connecting frame 4. The mouse moves on the mesh plate 5. When the mouse defecates and urinates, the urine and feces fall into the interior of the conical funnel 3 through the holes and grooves on the mesh plate 5.

[0028] Furthermore, the fecal collection unit also includes a fecal and urine separation component, which includes a support plate 17 disposed inside the conical funnel 3, located below the mesh plate 5. The conical funnel 3 is provided with a urine channel 23 and a fecal channel 24, and the urine channel 23 and the fecal channel 24 are arranged in an alternating manner.

[0029] A conical block 18 is provided above the support plate 17. Several guide plates 22 are arranged on the conical block 18, corresponding one-to-one with each other, directly above the fecal channel 24. It should be noted that the guide plates 22 can guide urine to both sides of the guide plates 22, preventing urine from flowing down the conical block 18 and directly entering the interior of the fecal channel 24. The end of the guide plate 22 away from the conical block 18 is fixedly connected to the inner wall of the conical funnel 3.

[0030] Specifically, if a mouse urinates above the mesh plate 5, the urine will flow down the mesh plate 5 into the conical funnel 3. Part of it will drip onto the conical block 18 and flow down the conical block 18 onto the support plate 17. However, the urine near the guide plate 22 will be guided to both sides by the guide plate 22 and continue to flow downward through the nearest urine channel 23. The other part will drip directly onto the support plate 17 and flow downward through the urine channel 23 on the support plate 17. If a mouse defecates above the mesh plate 5, the feces will fall from the mesh plate 5 into the conical funnel 3 and be located above the support plate 17. Thus, it is possible to separate urine and feces when collecting mouse feces.

[0031] Furthermore, a pushing assembly is provided between the support plate 17 and the conical block 18. The pushing assembly includes a rotating shaft 19 rotatably connected to the bottom surface of the conical block 18, and a servo motor for driving the rotating shaft 19 to rotate is provided on the conical block 18. The rotating shaft 19 is connected to a push plate 21 through a connecting rod 20. The push plate 21 is located between the support plate 17 and the guide plate 22. By driving the rotating shaft 19 to rotate, the push plate 21 on the connecting rod 20 is driven to rotate. The push plate 21 pushes the feces that are above the support plate 17 into the interior of the feces channel 24.

[0032] Furthermore, a diversion hopper 25 is provided directly below the support plate 17, and a connecting pipe 26 is connected to the lower end of the diversion hopper 25. The bottom of the fecal channel 24 is located inside the diversion hopper 25, and the bottom of the urine channel 23 is located outside the diversion hopper 25. The feces pushed by the pushing component enter the interior of the diversion hopper 25 from the inside of the fecal channel 24, while the urine passes through the outside of the diversion hopper 25.

[0033] Furthermore, a lower connecting frame 11 is provided at the bottom edge of the conical funnel 3, and an upper magnet 12 is provided on the bottom surface of the lower connecting frame 11;

[0034] Furthermore, a collection box 13 is provided directly below the conical funnel 3 for collecting urine and feces. A lower magnet 14 is provided on the top wall of the collection box 13 to be used in conjunction with the upper magnet 12. The collection box 13 can be installed on the lower connecting frame 11 by utilizing the magnetism of the upper magnet 12 and the lower magnet 14 to collect the collected feces and urine.

[0035] Furthermore, the collection box 13 includes a urine collection chamber 15 and a feces collection chamber 16. The feces collection chamber 16 is located directly below the connecting pipe 26, so that after the feces come out of the connecting pipe 26, they directly enter the interior of the feces collection chamber 16, while the urine enters the interior of the urine collection chamber 15, thus separating the collected feces from the urine.

[0036] Furthermore, the diameter of the fecal channel 24 is larger than that of the urine channel 23, and the fecal channel 24 is arranged at an angle, while the urine channel 23 is arranged vertically relative to the support 1. The angled channel of the fecal channel 24 causes the feces to converge towards the middle of the support plate 17, while the arrangement of the urine channel 23 allows the urine to flow down the cone block 18 and directly pass over the support plate 17 through the urine channel 23, avoiding the urine from staying on the support plate 17.

[0037] Furthermore, a barrier 6 is provided above the support 1, located outside the mesh plate 5, which can restrict the mouse's activity space and prevent the mouse from running around. The barrier 6 is preferably made of transparent material for observing the mouse's condition. A positioning rod 7 is provided at the bottom of the barrier 6, and a positioning groove 8 is provided on the support 1 to cooperate with the positioning rod 7, which can restrict the barrier 6 to a designated position and prevent the mouse from being knocked over after hitting the barrier 6.

[0038] Furthermore, the enclosure 6 has a window 9, and the inner side of the support 1 is provided with a food box 10, located below the window 9, which can add rat food into the food box 10 to increase the frequency of rat defecation.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A mouse fecal collector comprising a support (1), characterized in that, The bracket (1) is provided with an installation groove (2), and a fecal collection component is placed inside the installation groove (2); The fecal collection unit includes a conical funnel (3) located inside the installation groove (2), and an upper connecting frame (4) is provided on the upper edge of the conical funnel (3), and a mesh plate (5) is installed on the upper connecting frame (4). Furthermore, the fecal collection unit also includes a fecal and urine separation component, which includes a support plate (17) disposed inside the conical funnel (3) and located below the mesh plate (5). The conical funnel (3) is provided with a urine channel (23) and a fecal channel (24), and the urine channel (23) and the fecal channel (24) are arranged in an alternating manner. A conical block (18) is provided above the support plate (17). Several guide plates (22) are provided on the conical block (18) and are arranged one-to-one above the fecal channel (24). The end of the guide plate (22) away from the conical block (18) is fixedly connected to the inner wall of the conical funnel (3).

2. A mouse fecal collector according to claim 1, wherein A pushing component is provided between the support plate (17) and the conical block (18). The pushing component includes a rotating shaft (19) rotatably connected to the bottom surface of the conical block (18). A servo motor for driving the rotating shaft (19) to rotate is provided on the conical block (18). The rotating shaft (19) is connected to a push plate (21) through a connecting rod (20). The push plate (21) is located between the support plate (17) and the guide plate (22).

3. The mouse fecal collector of claim 1, wherein, A diversion hopper (25) is provided directly below the support plate (17), and a connecting pipe (26) is connected to the lower end of the diversion hopper (25). The bottom of the fecal channel (24) is located inside the diversion hopper (25), and the bottom of the urine channel (23) is located outside the diversion hopper (25).

4. A mouse fecal collector according to claim 3, wherein The bottom edge of the conical funnel (3) is provided with a lower connecting frame (11), and an upper magnet (12) is provided on the bottom surface of the lower connecting frame (11). A collection box (13) is provided directly below the conical funnel (3), and a lower magnet (14) is provided on the top wall of the collection box (13) to be used in conjunction with the upper magnet (12).

5. A mouse fecal collector according to claim 4, wherein The collection box (13) includes a urine collection chamber (15) and a feces collection chamber (16), the feces collection chamber (16) being located directly below the connecting tube (26).

6. The mouse fecal collector of claim 1, wherein, The diameter of the fecal channel (24) is larger than that of the urine channel (23), and the fecal channel (24) is arranged at an angle, while the urine channel (23) is arranged vertically relative to the support (1).

7. The mouse fecal collector of claim 1, wherein, A barrier (6) is provided above the bracket (1) and is located outside the mesh plate (5). A positioning rod (7) is provided at the bottom of the barrier (6), and a positioning groove (8) is provided on the bracket (1) to cooperate with the positioning rod (7).

8. A mouse fecal collector according to claim 7, wherein The enclosure (6) has a window (9), and a food box (10) is provided on the inner side of the bracket (1), located below the window (9).