Sampling device
By designing a sampling device with a sealed tube and a material collection mechanism, contactless sampling and double sealing of fecal samples were achieved, solving the pollution and infection problems of traditional sampling methods and improving hygiene and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南昌市青山湖区疾病预防控制中心
- Filing Date
- 2025-06-17
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional stool sampling methods are prone to operator contamination and cross-infection, and sample exposure poses a high risk of pathogen transmission.
A sampling device including a sealing tube and a material taking mechanism was designed. The device uses a rotating screw to drive the support and the material taking spoon to fold, thereby achieving sample encapsulation and sampling. The device also uses a double seal of threaded head and sealing ring to prevent the spread of odor and contamination.
It reduces the risk of operator contamination and cross-infection, improves hygiene and safety, and prevents sample contamination and the spread of pathogens.
Smart Images

Figure CN224136923U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sanitary inspection technology, specifically a sampling device. Background Technology
[0002] In medical and health testing, disease screening, and health checkups, the collection and analysis of stool samples are important means of diagnosing intestinal infections, parasitic diseases, gastrointestinal bleeding, and assessing gut microbiota. The traditional method of stool sampling is to manually dip a cotton swab in the sample. Although this can achieve the sampling effect, manual dipping can easily lead to direct contact with the sample, which may not only cause contamination of the operator, but also lead to cross-infection due to sample exposure, increasing the risk of bacterial transmission. Utility Model Content
[0003] The purpose of this invention is to provide a sampling device to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a sampling device, comprising a sealing tube, a threaded groove at the top of the sealing tube, and a handle fixedly connected to the outer wall of the sealing tube. A material-taking mechanism is installed inside the sealing tube, comprising an adjusting tube, a sealing cap, and a threaded head. The adjusting tube is fixedly fitted with the sealing cap and the threaded head. Multiple anti-slip blocks are circumferentially fixed to the top of the sealing cap, and a sealing ring is fixedly connected to the bottom of the sealing cap. Limiting grooves are longitudinally formed on both sides of the adjusting tube, and a screw passes through the top of the adjusting tube. An adjusting block is threaded onto the outside of the screw. Limiting blocks are fixedly connected to both sides of the adjusting block, and a bracket is movably connected to the limiting block. A material-taking spoon is movably connected to the bottom end of the bracket.
[0005] Optionally, the number of the feeding scoops is two, both of which are movably connected to the bottom of the adjusting tube, and the two feeding scoops are symmetrically distributed.
[0006] Optionally, the limiting block and the limiting groove are adapted to each other, and the limiting block is slidably connected inside the limiting groove, while the adjusting block is slidably connected inside the adjusting tube.
[0007] Optionally, the bottom end of the screw is rotatably connected to the inside of the adjusting tube via a bearing, and the top end of the screw extends to the top of the adjusting tube.
[0008] Optionally, the threaded head is fixed to the bottom of the sealing cap, and the threaded head is threaded into the inside of the threaded groove.
[0009] Optionally, the sealing ring is located on the periphery of the threaded head, with the bottom of the sealing ring abutting against the top of the sealing tube.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] The sampling mechanism uses a rotating screw to fold the support and sampling scoop. This folding of the scoop facilitates the wrapping and sampling of the patient's stool, preventing contamination from manual contact and providing an initial seal. After sampling, the threaded head is screwed into the threaded groove until the sealing cap seals the top of the sealing tube. The sealing ring further enhances the seal between the sealing cap and the sealing tube, preventing the spread of fecal odor and providing a secondary seal. This method not only reduces pollution to the surrounding environment but also prevents the spread of pathogens from the air, lowering the risk of pathogen transmission. Throughout the sampling process, the operator does not need to directly contact the stool sample, effectively preventing contamination and cross-infection and improving hygiene and safety. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of a sampling device according to the present invention;
[0013] Figure 2 This is a schematic diagram of the internal structure of a sampling device according to the present invention;
[0014] Figure 3 This is a schematic diagram of the threaded groove structure in a sampling device according to the present invention;
[0015] Figure 4 This is a schematic diagram of the material taking mechanism in a sampling device according to the present invention.
[0016] In the diagram: 1. Sealing tube; 11. Threaded groove; 2. Handle; 3. Material handling mechanism; 31. Adjusting tube; 32. Sealing cap; 33. Threaded head; 34. Anti-slip block; 35. Sealing ring; 36. Limiting groove; 37. Screw; 371. Adjusting block; 372. Limiting block; 38. Bracket; 39. Material handling spoon. Detailed Implementation
[0017] 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.
[0018] Please see Figures 1 to 4This utility model provides a sampling device, including a sealing tube 1, a threaded groove 11 on the top of the sealing tube 1, and a handle 2 fixedly connected to the outer wall of the sealing tube 1. A material taking mechanism 3 is installed inside the sealing tube 1. The material taking mechanism 3 includes an adjusting tube 31, a sealing cover 32, and a threaded head 33. The sealing cover 32 and the threaded head 33 are fixedly sleeved on the outside of the adjusting tube 31. Multiple anti-slip blocks 34 are fixedly connected to the top of the sealing cover 32 in an annular shape, and a sealing ring 35 is fixedly connected to the bottom of the sealing cover 32. Limiting grooves 36 are longitudinally opened on both sides of the adjusting tube 31, and a screw 37 passes through the top of the adjusting tube 31. An adjusting block 371 is threadedly sleeved on the outside of the screw 37. Limiting blocks 372 are fixedly connected to both sides of the adjusting block 371. A bracket 38 is movably connected to the limiting block 372, and a material taking spoon 39 is movably connected to the bottom end of the bracket 38.
[0019] Furthermore, there are two scoops 39, both of which are movably connected to the bottom of the regulating tube 31. The two scoops 39 are symmetrically distributed. The symmetrical design of the scoops 39 can more stably wrap the sample, improve the sampling efficiency and uniformity, and avoid the problems of insufficient sample volume or uneven distribution that may be caused by unilateral sampling.
[0020] Furthermore, the limiting block 372 and the limiting groove 36 are adapted to each other, and the limiting block 372 is slidably connected inside the limiting groove 36, while the adjusting block 371 is slidably connected inside the adjusting tube 31. This ensures that the adjusting block 371 moves smoothly and accurately within the adjusting tube 31, avoiding jamming or deviation, thereby ensuring that the screw 37 can smoothly drive the scoop 39 to complete the folding or unfolding action when it rotates.
[0021] Furthermore, the bottom end of the screw 37 is rotatably connected to the inside of the adjusting tube 31 via a bearing, and the top end of the screw 37 extends to the top of the adjusting tube 31. The bearing connection reduces friction, making it easier to rotate the screw 37. The extended top design allows users to directly operate the screw 37 without additional tools, improving ease of use.
[0022] Furthermore, the threaded head 33 is fixed to the bottom of the sealing cover 32, and the threaded head 33 is threaded into the inside of the threaded groove 11. Through thread fixation, the connection between the sealing cover 32 and the sealing tube 1 is ensured to be firm and detachable, which facilitates sealing and transportation after sampling, and at the same time provides a structural basis for secondary sealing.
[0023] Furthermore, the sealing ring 35 is located on the periphery of the threaded head 33, and the bottom of the sealing ring 35 abuts against the top of the sealing tube 1. The sealing ring 35 enhances the sealing performance between the sealing cap 32 and the sealing tube 1, effectively preventing sample odor leakage or environmental contamination, and further reducing the risk of cross-infection.
[0024] Working principle: Align the sampling spoon 39 with the stool sample to be collected, rotate the screw 37, the screw 37 drives the adjusting block 371 to move downward along the limiting groove 36, the limiting block 372 slides accordingly, pushing the bracket 38 to unfold outward, so that the two symmetrically distributed sampling spoons 39 gradually close and wrap around the sample. After the sampling spoons 39 are completely closed, the sample is clamped inside the sampling spoons 39, avoiding direct manual contact. After sampling, align the threaded head 33 with the threaded groove 11 at the top of the sealing tube 1, and then touch the multiple anti-slip blocks 34 with your hand and rotate them. At this time, the sealing cover 32 can be rotated until the threaded head 33 is completely screwed into the threaded groove 11. The sealing ring 35 is pressed tightly against the top of the sealing tube 1, forming a double seal to prevent odor leakage and sample contamination. The user can carry or transport the entire device by holding the handle 2 to avoid sample exposure and cross-infection. The design of the anti-slip blocks 34 makes it easy for the user to tighten the sealing cover 32, ensuring convenient operation and reliable sealing.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sampling device comprising a sealed tube (1), characterized in that, The top of the sealing tube (1) is provided with a threaded groove (11), and a handle (2) is fixedly connected to the outer wall of the sealing tube (1). The inside of the sealing tube (1) is equipped with a material taking mechanism (3). The material taking mechanism (3) includes an adjusting tube (31), a sealing cover (32) and a threaded head (33). The outer side of the adjusting tube (31) is fixedly fitted with a sealing cover (32) and a threaded head (33). The top of the sealing cover (32) is fixedly connected with multiple anti-slip blocks (34) in an annular shape, and the bottom of the sealing cover (32) is fixedly connected with a sealing ring (35). Both sides of the adjusting tube (31) are provided with a limit groove (36) in the longitudinal direction, and a screw (37) passes through the top of the adjusting tube (31). The outer thread of the screw (37) is fitted with an adjusting block (371). Both sides of the adjusting block (371) are fixedly connected with limit blocks (372). A bracket (38) is movably connected to the limit block (372), and a material taking spoon (39) is movably connected to the bottom end of the bracket (38).
2. A sampling device according to claim 1, wherein, There are two scoops (39), both of which are movably connected to the bottom of the regulating tube (31) and are symmetrically distributed.
3. A sampling device according to claim 2, wherein, The limiting block (372) and the limiting groove (36) are adapted to each other, and the limiting block (372) is slidably connected inside the limiting groove (36), and the adjusting block (371) is slidably connected inside the adjusting tube (31).
4. A sampling device according to claim 3, wherein, The bottom end of the screw (37) is rotatably connected to the inside of the regulating tube (31) via a bearing, and the top end of the screw (37) extends to the top of the regulating tube (31).
5. A sampling device according to claim 4, wherein, The threaded head (33) is fixed to the bottom of the sealing cap (32), and the threaded head (33) is threaded into the inside of the threaded groove (11).
6. A sampling device according to claim 5, wherein, The sealing ring (35) is located on the periphery of the threaded head (33), and the bottom of the sealing ring (35) abuts against the top of the sealing tube (1).