Anti-pollution excrement sample collection device
By designing a contamination-proof fecal sample collection device, which uses a support rod and an isolation net to expand and block feces inside the toilet, the problem of sample contamination in fecal microbiota sequencing is solved, and efficient and accurate fecal collection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG CHINESE MEDICAL UNIVERSITY
- Filing Date
- 2026-02-05
- Publication Date
- 2026-04-28
AI Technical Summary
Existing fecal microbiota sequencing samples are easily contaminated, leading to inaccurate testing.
A contamination-proof fecal sample collection device was designed, including a support rod, an isolation net, and a collection tray. The support rod expands inside the toilet and the isolation net blocks feces, preventing urine from flowing out. The feces are collected in the collection tray.
This method enables efficient and pollution-free collection of fecal samples within the toilet, avoiding the mixing of urine and feces and ensuring the accuracy of the test.
Smart Images
Figure CN121926631A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fecal sample technology, specifically a contamination-proof fecal sample collection device. Background Technology
[0002] Stool testing is a common clinical laboratory method used to assess the health of the digestive system. It involves visually observing the stool to determine its color, shape, and the presence of mucus, pus, blood, and parasites or fragments. Normal adult stool is yellowish-brown, soft, and columnar; infant stool is (golden) yellow or yellowish-green, pasty. Abnormal colors such as black or tarry stools may indicate upper gastrointestinal bleeding; clay-colored stools are seen in cases of complete biliary obstruction or after barium contrast radiography.
[0003] Currently, fecal microbiota sequencing is widely used in clinical research. However, if the sample is contaminated, the test will be inaccurate. Therefore, special devices are needed that do not contaminate the collected feces. Summary of the Invention
[0004] The purpose of this invention is to provide a contamination-resistant fecal sample collection device to address the problem mentioned in the background art: currently, fecal microbiota sequencing is widely used in clinical research, but if the sample is contaminated, the detection will be inaccurate, so there is a need for a device specifically designed to prevent contamination during fecal collection.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A fecal sample collection device for preventing contamination includes a support rod. A horizontally opening outer groove is formed on the outer side of the support rod. An anti-slip outer layer is horizontally and fixedly bonded to the inner side of the outer groove. An elastic support rod is fixedly connected to the inner side of the support rod. A compression screw is horizontally threaded to the side of the elastic support rod. A rotating block is fixedly installed at one end of the compression screw. An isolation net is inclinedly fixed to the inner side of the support rod. A collection tray is horizontally arranged on the bottom surface of the isolation net. A snap-fit side hole is formed on the inner side of the support rod. A mating screw hole is formed on the side of the elastic support rod. An end snap-fit block is fixedly connected to one end of the compression screw. A compression side block is fixedly installed on one side of the rotating block.
[0006] In a preferred embodiment of the present invention: the support rod body is arranged in an arc shape, the snap-fit outer groove is horizontally opened at the center line of the outer side of the support rod body, the anti-slip outer layer is horizontally fixedly arranged on the inner side of the snap-fit outer groove, and the anti-slip outer layer is made of anti-slip and anti-fouling material. The elastic support rod is arranged in an arc shape, and the two ends of the elastic support rod are fixedly connected to the inner side of the support rod body near the center position.
[0007] In a preferred embodiment of the present invention: the extrusion screw is horizontally threaded and connected to the inner side of the mating screw hole, and the extension end is horizontally connected to the opening end of the snap-fit side hole, and the side of the rotating block is located near the outer arc-shaped surface of the elastic support rod.
[0008] In a preferred embodiment of the present invention: the isolation net is obliquely fixed on the inner side of the support rod near the opening end, and the isolation net is made of corrosion-resistant and anti-fouling material and has a mesh structure. The collection tray is horizontally set on one side of the bottom surface of the isolation net, and the top surface of the collection tray is open.
[0009] In a preferred embodiment of the present invention: the snap-fit side hole is opened at the center of the inner arc-shaped surface of the support rod, and the screw hole is opened horizontally through the center of the side of the elastic support rod. One end of the end snap-fit block is snapped into the inner side of the snap-fit side hole, and the extrusion side block is fixedly sleeved at one end of the extrusion screw.
[0010] Compared with the prior art, the beneficial effects of the present invention are: This invention involves horizontally snapping a support rod onto the inner arc-shaped edge of the toilet. Rotating the rotating block causes the elastic support rod to expand outwards. Supported by side-pressing blocks, the expanded elastic support rod is pressed against the inner edge of the toilet. An external anti-slip layer provides stable support at the top opening of the inner edge of the toilet. When a person sits on the toilet, feces fall onto the top surface of the isolation mesh. The mesh prevents feces from flowing out as urine, allowing for screening. Feces can then be collected on the mesh or by moving the mesh to collect them in a collection tray. The compression-fixed installation structure makes installation convenient, while the screening-type isolation and collection structure prevents contamination of the toilet. Attached Figure Description
[0011] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A three-dimensional structural diagram of a pollution-resistant fecal sample collection device; Figure 2 A structural schematic diagram showing the connection details of a three-dimensional cross-section of the support rod of a pollution-proof fecal sample collection device; Figure 3 A schematic diagram showing the structural details of the three-dimensional connection of an elastic strut in a contamination-resistant fecal sample collection device; Figure 4This is a schematic diagram showing the structural details of the three-dimensional connection of the extrusion screw in a contamination-resistant fecal sample collection device.
[0012] In the diagram: 1. Support rod; 2. Snap-fit outer groove; 3. Anti-slip outer layer; 4. Elastic support rod; 5. Extrusion screw; 6. Rotating block; 7. Isolation net; 8. Collection tray; 9. Snap-fit side hole; 10. Mating screw hole; 11. End snap-fit block; 12. Extrusion side block. Detailed Implementation
[0013] Please see Figure 1-4 In this embodiment of the invention, a fecal sample collection device for preventing contamination includes a support rod 1. A horizontally opening snap-fit groove 2 is provided on the outer side of the support rod 1. An anti-slip outer layer 3 is horizontally fixedly bonded to the inner side of the snap-fit groove 2. An elastic support rod 4 is fixedly connected to the inner side of the support rod 1. The support rod 1 has an arc-shaped structure. The snap-fit groove 2 is horizontally opened at the center line of the outer side of the support rod 1. The anti-slip outer layer 3 is horizontally fixedly disposed on the inner side of the snap-fit groove 2 and is made of anti-slip and anti-fouling material. The elastic support rod 4 has an arc shape, and both ends of the elastic support rod 4 are fixedly connected to the inner side of the support rod 1 near the center. A compression screw 5 is horizontally threaded to the side of the elastic support rod 4. A rotating block 6 is fixedly disposed at one end of the compression screw 5. The compression screw 5 is horizontally threaded through and disposed on the inner side of the mating screw hole 17, and its extended end is horizontally connected to the opening end of the snap-fit side hole 9. The side of the rotating block 6 is disposed near the elastic support rod 1. At the outer arc-shaped surface of the support rod 4, an isolation net 7 is obliquely fixed to the inner side of the support rod 1. A collection tray 8 is horizontally mounted on the bottom surface of the isolation net 7. The isolation net 7 is obliquely fixed to the inner side of the support rod 1 near the opening end. The isolation net 7 is made of corrosion-resistant and stain-resistant material and has a mesh structure. The collection tray 8 is horizontally mounted on one side of the bottom surface of the isolation net 7. The top surface of the collection tray 8 is open. A snap-fit side is provided on the inner side of the support rod 1. Hole 9, a mating screw hole 10 is provided on the side of the elastic support rod 4, an end locking block 11 is fixedly connected to one end of the extrusion screw 5, an extrusion side block 12 is fixedly provided on one side of the rotating block 6, the locking side hole 9 is opened at the center of the inner arc surface of the support rod body 1, the mating screw hole 10 is opened horizontally through the center of the side of the elastic support rod 4, one end of the end locking block 11 is locked and set on the inner side of the locking side hole 9, and the extrusion side block 12 is fixedly sleeved and set on one end of the extrusion screw 5.
[0014] The working principle of this invention is: The support rod 1 is horizontally snapped into the inner arc-shaped edge of the toilet. After rotating the rotating block 6, the elastic support rod 4 is driven to expand outward. With the support of the side compression block 12, the two ends of the elastic support rod 4 are squeezed outward and pressed against the inner edge of the toilet. With the support of the outer anti-slip layer 3, the support rod 1 can be stably supported at the top opening of the inner edge of the toilet. When a person sits on the toilet, the feces will fall to the top of the isolation net 7. The isolation net 7 prevents the feces from flowing down instead of urine for screening. The feces can then be collected on the isolation net 7 or moved to allow the feces to fall into the collection tray 8 for centralized collection.
[0015] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A pollution-resistant fecal sample collection device, comprising a support rod (1), characterized in that, The outer side of the support rod (1) is horizontally provided with a snap-fit groove (2), and the inner side of the snap-fit groove (2) is horizontally fixedly bonded with an anti-slip outer layer (3). The inner side of the support rod (1) is fixedly connected with an elastic support rod (4), and the side of the elastic support rod (4) is horizontally threaded with a pressing screw (5). One end of the pressing screw (5) is fixedly provided with a rotating block (6). The inner side of the support rod (1) is inclinedly fixedly provided with an isolation net body (7), and the bottom surface of the isolation net body (7) is horizontally provided with a collection tray (8). The inner side of the support rod (1) is provided with a snap-fit side hole (9), and the side of the elastic support rod (4) is provided with a mating screw hole (10). One end of the pressing screw (5) is fixedly connected with an end snap-fit block (11), and one side of the rotating block (6) is fixedly provided with a pressing side block (12).
2. The pollution-resistant fecal sample collection device according to claim 1, characterized in that, The support rod (1) is arranged in an arc shape. The snap-fit outer groove (2) is horizontally opened at the center line of the outer side of the support rod (1). The anti-slip outer layer (3) is horizontally fixed on the inner side of the snap-fit outer groove (2). The anti-slip outer layer (3) is made of anti-slip and anti-fouling material. The elastic support rod (4) is arranged in an arc shape. The two ends of the elastic support rod (4) are fixedly connected to the inner side of the support rod (1) near the center.
3. The pollution-resistant fecal sample collection device according to claim 1, characterized in that, The extrusion screw (5) is horizontally threaded and connected to the inner side of the mating screw hole (17), and the extension end is horizontally connected to the opening end of the snap-fit side hole (9). The side of the rotating block (6) is located near the outer arc surface of the elastic support rod (4).
4. The pollution-resistant fecal sample collection device according to claim 1, characterized in that, The isolation net (7) is obliquely fixed on the inner side of the support rod (1) near the opening end. The isolation net (7) is made of corrosion-resistant and anti-fouling material and has a mesh structure. The collection tray (8) is horizontally set on one side of the bottom surface of the isolation net (7). The top surface of the collection tray (8) is open.
5. The pollution-resistant fecal sample collection device according to claim 1, characterized in that, The snap-fit side hole (9) is located at the center of the inner arc surface of the support rod body (1), and the screw hole (10) is horizontally and through the center of the side of the elastic support rod (4). One end of the end snap-fit block (11) is snapped into the inner side of the snap-fit side hole (9), and the extrusion side block (12) is fixedly sleeved at one end of the extrusion screw (5).