A pretreatment device and a fecal analyzer using the same
By introducing a mixing component and a breaking component into the fecal analyzer, combined with a driving component, efficient mixing and sampling of fecal samples are achieved, solving the problems of large device size, high cost and low efficiency in the existing technology, and ensuring the accuracy and safety of the detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN JIAWEN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-16
AI Technical Summary
Existing fecal analyzers are bulky, require a large area, and have high production costs due to the use of numerous mechanical structures. Furthermore, manual pretreatment is inefficient, easily contaminates samples, and emits odors.
The system employs a combination of a mixing component, a breaking component, and a driving component. The driving component drives the mixing component and the squeezing component to mix and break the fecal sample and reaction liquid in the sampling tube. The mixing component limits the position of the sampling tube to ensure sampling accuracy.
The structure of the pretreatment device has been simplified, the size and cost of the device have been reduced, the processing efficiency has been improved, and the accuracy of detection and the safety of operation have been ensured.
Smart Images
Figure CN224365849U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of in vitro detection technology, specifically relating to a pretreatment device and a fecal analyzer using the same. Background Technology
[0002] Fecal testing is an important clinical examination. By analyzing biomarkers in fecal samples, doctors can indirectly assess the functional status of the digestive tract, pancreas, liver, and gallbladder, detect gastroenteritis and liver disease early, and it can also serve as a basis for the diagnosis and screening of digestive tract tumors.
[0003] Before testing fecal samples, a series of pretreatments are required, including mixing the fecal sample with the diluent / reaction solution and breaking open the sampling tube containing the fecal sample. These pretreatment processes are complex and require manual processing, resulting in low efficiency. Furthermore, the fecal sample may emit an odor, affecting the operator and the surrounding environment, and may also contaminate the sample during operation, leading to inaccurate test results. Automating the process using mechanical structures involves numerous mechanical components, resulting in a larger size and footprint of the fecal analyzer, and higher production costs. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a pretreatment device that solves the problem that the current pretreatment of fecal samples involves a large number of mechanical structures, resulting in a large size and footprint of the fecal analyzer and high production costs.
[0005] The purpose of this invention is also to provide a fecal analyzer that uses the pretreatment device.
[0006] To achieve the above objectives, the first technical solution of this utility model is implemented as follows: a pretreatment device is applied to a fecal analyzer, including a mixing component, a breaking component, and a driving component. The mixing component is located below the breaking component and is connected to the driving component. In use, the automatic sampling device in the fecal analyzer drives the sampling tube through the breaking component and the mixing component. The driving component drives the mixing component to mix the fecal sample to be tested with the reaction liquid in the sampling tube. Furthermore, the mixing component limits the sampling tube when the breaking component breaks the seal on the sampling tube.
[0007] Furthermore, it also includes a squeezing component, which is located behind the mixing component and connected to the driving component; in use, the driving component drives the squeezing component to clamp the sampling tube passing through it, so that the fecal sample to be tested in the sampling tube is squeezed to the opening of the sampling tube.
[0008] Furthermore, the driving assembly includes a fixed base and a driving motor and a movable component disposed thereon. The driving motor drives the movable component to move, thereby driving the mixing assembly and / or the extrusion assembly to perform mixing and extrusion operations.
[0009] Furthermore, the mixing assembly includes two moving blocks and a mixing element. Both moving blocks are connected to the movable element and are located on both sides of the sampling tube injection path. The mixing element is located on one of the moving blocks.
[0010] Furthermore, the mixing component is an ultrasonic generator or a polarization motor.
[0011] Furthermore, the extrusion assembly includes two clamping blocks, both of which are connected to the movable component and are located on both sides of the sampling tube inlet path.
[0012] Furthermore, when the movable component moves the two moving blocks closer to each other, the distance between the two clamping blocks is less than the distance between the two moving blocks.
[0013] Furthermore, the breaking assembly includes a breaking drive motor and a drill bit connected thereto.
[0014] The second technical solution of this utility model is implemented as follows: a fecal analyzer includes an automatic sampling device and the above-mentioned pretreatment device. In use, the automatic sampling device drives a sampling tube loaded with the fecal sample to be tested and the reaction liquid through the pretreatment device, and the pretreatment device performs mixing, breaking and squeezing treatment on the sampling tube.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model drives the mixing component to move through the driving component, so as to promote the thorough mixing and reaction of the fecal sample to be tested and the reaction liquid, ensuring the accuracy of subsequent detection. At the same time, the breaking component is set to break the sealing film or soft plug on the sampling tube, so as to facilitate sampling with the sampling needle. When breaking, the mixing component is also used to limit the sampling tube to prevent the sampling tube from deviating from the sampling position, thus ensuring the accuracy of sampling. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the pretreatment device described in this utility model;
[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0018] Figure 3 This is a structural diagram of the driving component.
[0019] In the diagram, 1-mixing component, 11-moving block, 12-mixing element;
[0020] 2-Break assembly, 21-Break drive motor, 22-Drill bit;
[0021] 3-Drive assembly, 31-Fixed base, 32-Drive motor, 33-Moving part;
[0022] 4-Extrusion assembly, 41-Clamping block. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] In the description of this utility model, it should be clarified that the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," and "horizontal," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are merely for the convenience of describing this utility model. They do not imply that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Example 1
[0026] The pretreatment device provided in this embodiment is applied to a fecal analyzer, and its structure is as follows: Figure 1 , Figure 2 As shown, the fecal analyzer includes a mixing component 1, a breaking component 2, and a driving component 3. The mixing component 1 is located below the breaking component 2 and is connected to the driving component 3. In use, the automatic sampling device in the fecal analyzer drives the sampling tube through the breaking component 2 and the mixing component 1. The driving component 3 drives the mixing component 1 to mix the fecal sample to be tested with the reaction solution in the sampling tube. Furthermore, the mixing component 1 limits the sampling tube when the breaking component 2 breaks the seal on the sampling tube.
[0027] Based on the above structure, the pretreatment device drives the mixing component 1 to contact the sampling tube through the driving component 3, so as to make the fecal sample to be tested and the reaction liquid in the sampling tube fully mixed and reacted, ensuring the accuracy of subsequent detection. At the same time, the breaking component 2 breaks the sealing film or soft plug on the sampling tube, making it convenient to use the sampling needle for sampling. When breaking, the mixing component 1 also limits the sampling tube to prevent the sampling tube from deviating from the sampling position when breaking, thus ensuring the accuracy of sampling.
[0028] In some embodiments of this application, the pretreatment device further includes a squeezing component 4, which is located behind the mixing component 1 and connected to the driving component 3. In use, the driving component 3 drives the squeezing component 4 to clamp the sampling tube passing through it, so that the fecal sample to be tested in the sampling tube is squeezed to the opening of the sampling tube, which facilitates sampling by the sampling needle, avoids empty suction by the sampling needle or insufficient sampling volume, and ensures smooth operation and accurate detection.
[0029] like Figure 3 As shown, in some embodiments of this application, the driving component 3 includes a fixed base 31 and a driving motor 32 and a movable component 33 disposed thereon. The driving motor 32 drives the movable component 33 to move, thereby driving the mixing component 1 and / or the extrusion component 4 to perform mixing and extrusion operations.
[0030] In this embodiment, the drive motor 32 and the movable part 33 are supported by the fixed base 31. The drive motor 32 drives the movable part 33 to slide and rotate relative to the fixed base 31, thereby driving the mixing component 1 and the extrusion component 4 to perform corresponding operations.
[0031] Specifically, the movable component 33 includes a gear and two sliding blocks. The central axis of the gear is connected to the output shaft of the drive motor 32. The two sliding blocks are slidably connected to the fixed base 31 and are located parallel to each other on both sides of the gear. The two sliding blocks have racks that mesh with the gear on the side closest to the gear.
[0032] In use, the drive motor 32 drives the gear to rotate, which in turn drives the rack and sliding block meshing with the gear to move in parallel relative to each other. This causes the mixing component 1 and the extrusion component 4 connected to the sliding block to move closer to the sampling tube on the injection path when needed, and away from the sampling tube when not needed.
[0033] In some embodiments of this application, the mixing component 1 includes two moving blocks 11 and a mixing element 12. Both moving blocks 11 are connected to the movable element 33 and are located on both sides of the sampling tube injection path. The mixing element 12 is located on one of the moving blocks 11.
[0034] In this embodiment, the movable component 33 drives the two moving blocks 11 to move closer or further apart. When the two moving blocks 11 move closer together, they can clamp the sampling tube passing through them. At this time, the mixing component 12 approaches the sampling tube or directly contacts the sampling tube to mix the fecal sample to be tested and the reaction liquid in the sampling tube. At the same time, it can also limit the sampling tube when the breaking component 2 breaks the sealing film or soft plug on the sampling tube to prevent the sampling tube from deviating from its original position, which facilitates subsequent sampling and other processing.
[0035] In some embodiments of this application, the mixing element 12 is an ultrasonic generator or a polarization motor.
[0036] In this embodiment, by setting an ultrasonic generator or a polarization motor on the moving block 11, a force is generated from the side to avoid collision with the breaking component 2 when mixing from above; the ultrasonic waves generated by the ultrasonic generator can cause the fecal sample to be tested and the reaction liquid to vibrate, promoting their uniform dispersion; or the polarization motor can generate vibrations of a specific frequency and amplitude to promote the uniform mixing of the fecal sample to be tested and the reaction liquid.
[0037] In some embodiments of this application, the breaking assembly 2 includes a breaking drive motor 21 and a drill bit 22 connected thereto. The breaking drive motor 21 drives the drill bit 22 to move up and down and / or rotate, breaking the sealing film and soft plug of the sampling tube opening, so that the sampling needle can be inserted into the sampling tube for sampling.
[0038] In some embodiments of this application, the squeezing assembly 4 includes two clamping blocks 41, both of which are connected to the movable member 33 and are located on both sides of the sampling tube inlet path.
[0039] In this embodiment, the movable part 33 drives the two clamping blocks 41 to move closer or further apart. When the two clamping blocks 41 move closer to each other, they will squeeze the sampling tube passing through them, so that the fecal sample to be tested in the sampling tube is squeezed to the tube opening, which facilitates subsequent sampling.
[0040] Using a single drive component 3 to jointly drive the mixing component 1 and the extrusion component 4 can simplify the structure of the pretreatment device, reduce the size and floor space of the pretreatment device and the fecal analyzer that uses it, and lower production costs.
[0041] In some embodiments of this application, when the movable member 33 drives the two moving blocks 11 to move closer to each other, the distance between the two clamping blocks 41 is less than the distance between the two moving blocks 11.
[0042] When the movable part 33 moves the two moving blocks 11 and the two clamping blocks 41 closer to each other, the two moving blocks 11 limit the sampling tube to prevent it from deviating from its original position as the drill bit 22 moves upward. It also prevents the two moving blocks 11 from squeezing the sampling tube too forcefully, which would cause the fecal sample to be tested to be squeezed to the opening of the sampling tube and contaminate the drill bit 22. Therefore, the clamping force of the two moving blocks 11 on the sampling tube when they are close to each other is relatively small. However, the two clamping blocks 41 need to squeeze the sampling tube so that the fecal sample to be tested is squeezed to the opening of the sampling tube, which requires a larger clamping force. Therefore, the distance between the two clamping blocks 41 when they are close to each other is smaller than the distance between the two moving blocks 11 when they are close to each other.
[0043] The specific method for using the pretreatment device provided in this embodiment is as follows:
[0044] The pretreatment device is placed on the sampling path of the automatic sampling device in the fecal analyzer. When the automatic sampling device drives the sampling tube through the pretreatment device, the drive motor 32 in the drive assembly 3 drives the movable part 33 to move, which in turn drives the two moving blocks 11 to move closer to each other to limit the sampling tube. The mixing part 12 moves closer to the sampling tube and uses ultrasonic or polarized tapping to make the fecal sample to be tested in the sampling tube mix with the reaction liquid. After mixing, the breaking drive motor 21 drives the drill bit 22 to move up and down and / or rotate to break the sealing film or soft plug on the sampling tube. Then the breaking drive motor 21 drives the drill bit 22 to reset. Since the two moving blocks 11 clamp the sampling tube to limit it, the sampling tube will not move with the drill bit 22 at this time. After the drill bit 22 resets, the drive assembly 3 drives the two moving blocks 11 to move away from each other.
[0045] The automatic sampling device drives the sampling tube through the squeezing component 4. The driving component 3 drives the two clamping blocks 41 to move closer to each other and squeeze the sampling tube, so that the fecal sample to be tested moves to the opening of the sampling tube. Then, the driving component 3 drives the two clamping blocks 41 to move away from each other, and the automatic sampling device drives the sampling tube to the sampling position for sampling and testing.
[0046] When the automatic sampler drives multiple sampling tubes through the pretreatment device, the mixing component 1 and the squeezing component 4 can process the samples in two sampling tubes simultaneously, ensuring the orderliness and efficiency of the pretreatment.
[0047] Example 2
[0048] The fecal analyzer provided in this embodiment includes an automatic sampling device and a pretreatment device as described in Embodiment 1. In use, the automatic sampling device drives a sampling tube loaded with the fecal sample to be tested and the reaction solution through the pretreatment device, which performs mixing, breaking, and squeezing on the sampling tube.
[0049] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A pretreatment device for use in a fecal analyzer, characterized in that, The instrument includes a mixing component (1), a breaking component (2), and a driving component (3). The mixing component (1) is located below the breaking component (2). The mixing component (1) is connected to the driving component (3). In use, the automatic sampling device in the fecal analyzer drives the sampling tube through the mixing component (1) and the breaking component (2). The driving component (3) drives the mixing component (1) to mix the fecal sample to be tested with the reaction liquid in the sampling tube. The mixing component (1) limits the sampling tube when the breaking component (2) breaks the sealing film on the sampling tube.
2. The pretreatment apparatus according to claim 1, characterized in that, It also includes a squeezing component (4), which is located behind the mixing component (1) and connected to the driving component (3). In use, the driving component (3) drives the squeezing component (4) to clamp the sampling tube passing through it, so that the fecal sample to be tested in the sampling tube is squeezed to the opening of the sampling tube.
3. The pretreatment apparatus according to claim 2, characterized in that, The drive assembly (3) includes a fixed base (31) and a drive motor (32) and a movable part (33) disposed thereon. The drive motor (32) drives the movable part (33) to move, thereby driving the mixing assembly (1) and / or the extrusion assembly (4) to perform mixing and extrusion operations.
4. The pretreatment apparatus according to claim 3, characterized in that, The mixing component (1) includes two moving blocks (11) and a mixing element (12). Both moving blocks (11) are connected to the movable element (33) and are located on both sides of the sampling tube injection path. The mixing element (12) is located on one of the moving blocks (11).
5. The pretreatment apparatus according to claim 4, characterized in that, The mixing component (12) is an ultrasonic generator or a polarization motor.
6. The pretreatment apparatus according to claim 4, characterized in that, The extrusion assembly (4) includes two clamping blocks (41), both of which are connected to the movable part (33) and are located on both sides of the sampling tube inlet path.
7. A pretreatment apparatus according to claim 6, characterized in that, When the movable component (33) moves the two moving blocks (11) closer to each other, the distance between the two clamping blocks (41) is less than the distance between the two moving blocks (11).
8. A pretreatment apparatus according to any one of claims 1-7, characterized in that, The breaking assembly (2) includes a breaking drive motor (21) and a drill bit (22) connected thereto.
9. A fecal analyzer, characterized in that, The device includes an automatic sampling device and a pretreatment device as described in any one of claims 1-8. In use, the automatic sampling device drives a sampling tube containing the fecal sample to be tested and the reaction solution through the pretreatment device, which performs mixing, breaking, and squeezing on the sampling tube.