Sampling equipment for pathological detection
The design of the quick-release sampling head and the detachable aspiration mechanism enables the disassembly and cleaning of the sampling equipment used for pathological testing, solving the problem of equipment waste and improving the practicality and accuracy of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN SELFAN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-12
AI Technical Summary
Existing pathological testing sampling equipment is disposable after one-time use, resulting in serious waste of materials and affecting the accuracy of test results.
The design incorporates a quick-release sampling head mechanism and a detachable suction mechanism, allowing for rapid disassembly and cleaning of the conical cylinder and suction components, and supporting reuse.
This reduces waste of sampling equipment materials and improves the practicality of the equipment and the accuracy of test results.
Smart Images

Figure CN224231356U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sampling device technology, and in particular to a sampling device for pathological testing. Background Technology
[0002] Pathological testing sampling equipment is a device that extracts serum or tissue from a pathological site. Pathological examination is a pathological morphological method used to examine pathological changes in organs, tissues, or cells of the body. In order to explore the disease process of organs, tissues, or cells, a certain pathological morphological examination method can be used to examine the lesions that have occurred. Some devices perform detection by extracting serum or saliva.
[0003] In existing technologies, most sampling devices used for pathological testing are disposable. After a sampling is completed, they are discarded and a new sampling device is used for different samples in the future. This is to avoid the sample remaining in the sampling head of the previous sampling device affecting the accuracy of the next sampling and testing results. Although this can ensure the accuracy of the sampling and testing results, it undoubtedly causes a lot of unnecessary loss of sampling equipment materials and a lot of unnecessary waste. Therefore, there is an urgent need for a sampling device for pathological testing to solve the above-mentioned technical problems. Utility Model Content
[0004] This utility model discloses a sampling device for pathological testing. It features a quick-release sampling head mechanism, allowing staff to, after completing a sampling operation, wear protective gloves, grasp the main cylinder and conical cylinder with both hands, and apply force to bring them closer together. The spring compresses until the locking block separates from the slot. Then, the conical cylinder is rotated until the locking block is far above the slot. At this point, the conical cylinder can be quickly and easily removed and replaced with a new one. The removed conical cylinder can be cleaned and disinfected for future reuse, significantly reducing unnecessary material loss from the sampling equipment. In summary, this invention solves the problems in the background technology.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] The present invention provides a sampling device for pathological testing, comprising a main cylinder, wherein the top and bottom of the main cylinder are both open, and the top opening of the main cylinder is provided with an internal thread;
[0007] A quick-release sampling head mechanism includes a fixed block, springs, a movable cylinder, a conical cylinder, a retaining seat, a vertical plate, and a locking block. The fixed block is an annular block and is fixedly installed inside the main cylinder. Multiple springs are provided, with their top ends fixedly connected to the fixed block. The top of the movable cylinder is fixedly connected to the bottom ends of the multiple springs. The movable cylinder is movably fitted inside the main cylinder. The bottom of the movable cylinder has an annular sealing gasket. The bottom of the conical cylinder has a sampling needle tube. Two retaining seats, two vertical plates, and two locking blocks are provided. The two retaining seats are fixedly connected to both sides of the main cylinder. The retaining seats have slots inside and are U-shaped. Connecting blocks are fixedly connected to both sides of the conical cylinder. The bottom of the vertical plate is fixedly connected to the connecting blocks. A locking block is fixedly connected to one side of the vertical plate, and the locking block matches and engages with the slots. The top of the conical cylinder abuts against the sealing gasket. The springs are in a compressed state.
[0008] A detachable suction mechanism is located at the top and inside of the main cylinder, and the detachable suction mechanism extends into the interior of the conical cylinder.
[0009] Furthermore, a plurality of telescopic guide rods are fixedly connected to the top of the movable cylinder, and the telescopic ends of the telescopic guide rods are fixedly connected to the bottom of the fixed block.
[0010] Furthermore, the multiple springs and multiple telescopic guide rods are all arranged in a ring array, and the multiple springs and multiple telescopic guide rods are arranged in an interleaved manner.
[0011] Furthermore, the outer surface of the movable cylinder is in close contact with the inner wall of the main cylinder, and the outer surface of the movable cylinder is a smooth surface.
[0012] Furthermore, the detachable suction mechanism includes a spherical cap, a connecting cylinder, and a suction tube. The bottom of the spherical cap is fixedly connected to the top of the connecting cylinder. The bottom of the connecting cylinder is provided with an external thread. The bottom of the connecting cylinder is threadedly connected to the top of the main cylinder. The top of the suction tube is connected to the bottom of the spherical cap. The bottom of the suction tube extends through the fixed block and the movable cylinder into the conical cylinder.
[0013] Furthermore, the outer wall of the suction tube is close to but does not contact the inner wall of the fixed block and the movable cylinder.
[0014] Furthermore, the outer surface of the connecting cylinder is uniformly provided with anti-slip textures.
[0015] The present invention has the following advantages over the prior art:
[0016] 1. This technical solution incorporates a quick-release sampling head mechanism. After the sampling equipment completes one sampling operation, the operator, wearing protective gloves, can grasp the main cylinder and the conical cylinder in the quick-release sampling head mechanism with both hands, apply force to bring them closer together and rotate them at a certain angle until the locking block separates from the slot and moves away. At this point, the conical cylinder can be quickly and easily removed and replaced with a new one. The removed conical cylinder can be cleaned and disinfected for future reuse, thus greatly reducing unnecessary material loss from the sampling equipment. To install a new conical cylinder, simply repeat the above steps. The disassembly and assembly of the conical cylinder are simple, time-saving, and labor-saving, thus greatly improving the overall practicality of the sampling equipment.
[0017] 2. This technical solution features a detachable suction mechanism, allowing the conical cylinder to be removed after multiple sampling operations. The spherical cap, connecting cylinder, and suction tube can then be disassembled, enabling convenient and quick cleaning and disinfection of all components of the sampling equipment, thus further enhancing its practicality. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;
[0021] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the present invention;
[0022] Figure 4 A schematic diagram of the explosive structure of the conical cylinder of this utility model;
[0023] Figure 5 This is a schematic diagram of the exploded structure of the connecting cylinder of this utility model.
[0024] In the diagram: 1. Main cylinder; 2. Quick-release sampling head mechanism; 201. Fixing block; 202. Spring; 203. Movable cylinder; 204. Conical cylinder; 205. Card seat; 206. Vertical plate; 207. Card block; 208. Sealing gasket; 209. Card slot; 210. Connecting block; 211. Telescopic guide rod; 3. Detachable suction mechanism; 301. Spherical cap; 302. Connecting cylinder; 303. Suction tube. Detailed Implementation
[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:
[0028] Reference Figures 1-4 A sampling device for pathological testing includes a main cylinder 1, the top and bottom of the main cylinder 1 are both open, and the top opening of the main cylinder 1 is provided with an internal thread.
[0029] The quick-release sampling head mechanism 2 includes a fixed block 201, a spring 202, a movable cylinder 203, a conical cylinder 204, a mounting base 205, a vertical plate 206, and a locking block 207. The fixed block 201 is an annular block and is fixedly installed inside the main cylinder 1. Multiple springs 202 are provided, with their top ends fixedly connected to the fixed block 201. The top of the movable cylinder 203 is fixedly connected to the bottom ends of the multiple springs 202. The movable cylinder 203 is movably sleeved inside the main cylinder 1. The bottom of the movable cylinder 203 is provided with an annular sealing gasket 208. The bottom of the conical cylinder 204 is provided with a sampling needle tube. The mounting base 205 and the vertical plate 206 are also included. 6 and two locking blocks 207 are provided. Two locking seats 205 are fixedly connected to the two sides of the main cylinder 1 respectively. The locking seat 205 has a locking groove 209 inside. The locking seat 205 is U-shaped. Connecting blocks 210 are fixedly connected to both sides of the conical cylinder 204. The bottom of the vertical plate 206 is fixedly connected to the connecting block 210. A locking block 207 is fixedly connected to one side of the vertical plate 206. The locking block 207 matches and engages with the locking groove 209. The top of the conical cylinder 204 abuts and presses against the sealing gasket layer 208. The spring 202 is in a compressed state. The detachable suction mechanism 3 is located at the top and inside of the main cylinder 1, and the detachable suction mechanism 3 extends into the inside of the conical cylinder 204.
[0030] Multiple telescopic guide rods 211 are fixedly connected to the top of the movable cylinder 203, and the telescopic ends of the telescopic guide rods 211 are fixedly connected to the bottom of the fixed block 201; multiple springs 202 and multiple telescopic guide rods 211 are arranged in a ring array, and the multiple springs 202 and multiple telescopic guide rods 211 are arranged in an interlaced manner; the outer surface of the movable cylinder 203 is in close contact with the inner wall of the main cylinder 1, and the outer surface of the movable cylinder 203 is a smooth surface.
[0031] In the specific implementation process, after the sampling equipment completes a sampling operation, the staff can wear protective gloves, hold the main cylinder 1 and the conical cylinder 204 with both hands respectively, and apply force to bring them closer together, compressing the spring 202 until the locking block 207 separates from the locking groove 209. Then rotate the conical cylinder 204 until the locking block 207 is away from the top of the locking groove 209. At this point, the conical cylinder 204 can be quickly and easily removed and replaced with a new conical cylinder 204. The removed conical cylinder 204 can be cleaned and disinfected for future reuse, which can greatly reduce unnecessary material loss of the sampling equipment. When installing a new conical cylinder 204, the above operation is repeated in reverse. The disassembly and assembly of the conical cylinder 204 are simple and time-saving.
[0032] Among them, multiple telescopic guide rods 211 can ensure the stability of the movable cylinder 203 when it moves up and down;
[0033] The multiple springs 202 and multiple telescopic guide rods 211 are arranged in a ring array, and the multiple springs 202 and multiple telescopic guide rods 211 are arranged in an interlaced manner, which can effectively ensure good stability when the fixed block 201 and the movable cylinder 203 move relative to each other.
[0034] The outer surface of the movable cylinder 203 is closely fitted to the inner wall of the main cylinder 1, and the outer surface of the movable cylinder 203 is a smooth surface in order to further improve the stability of the movable cylinder 203 and reduce the sliding friction between the movable cylinder 203 and the main cylinder 1, thereby facilitating the up and down movement of the movable cylinder 203 in the main cylinder 1. Specific Implementation Example 2:
[0036] Reference Figure 3 and Figure 5 In a preferred embodiment, the detachable suction mechanism 3 includes a spherical cap 301, a connecting cylinder 302, and a suction tube 303. The bottom of the spherical cap 301 is fixedly connected to the top of the connecting cylinder 302. The bottom of the connecting cylinder 302 is provided with an external thread. The bottom of the connecting cylinder 302 is threadedly connected to the top of the main cylinder 1. The top of the suction tube 303 is connected to the bottom of the spherical cap 301. The bottom of the suction tube 303 extends through the fixed block 201 and the movable cylinder 203 into the conical cylinder 204.
[0037] The outer wall of the suction tube 303 is close to but does not contact the inner wall of the fixed block 201 and the movable cylinder 203; the outer side of the connecting cylinder 302 is uniformly provided with anti-slip texture.
[0038] In the specific implementation process, after completing multiple sampling operations, the conical cylinder 204 can be removed first, and then the connecting cylinder 302 can be rotated to separate it from the main cylinder 1. The connecting cylinder 302 can be moved upward until the suction tube 303 is completely separated from the main cylinder 1. Then the spherical cap 301, the connecting cylinder 302 and the suction tube 303 can be removed. At this time, the components of the sampling equipment can be cleaned and disinfected more conveniently and quickly.
[0039] The outer wall of the suction tube 303 is close to the inner wall of the fixed block 201 and the movable cylinder 203 but does not contact them in order to improve the stability of the suction tube 303.
[0040] The connecting cylinder 302 has uniform anti-slip textures on its exterior to facilitate the installation or disassembly of the connecting cylinder 302 by workers.
[0041] Working principle: After the sampling equipment completes one sampling operation, the operator, wearing protective gloves, holds the main cylinder 1 and the conical cylinder 204 with both hands respectively, and applies force to bring them closer together. The spring 202 is compressed until the locking block 207 separates from the slot 209. Then, the conical cylinder 204 is rotated until the locking block 207 is far away from the slot 209. At this point, the conical cylinder 204 can be quickly and easily removed and replaced with a new one. The removed conical cylinder 204 can be cleaned and disinfected for future reuse, which greatly reduces unnecessary material loss of the sampling equipment. To install a new conical cylinder 204, the above operation is repeated in reverse. The disassembly and assembly of the conical cylinder 204 are simple, time-saving, and labor-saving.
[0042] After completing multiple sampling operations, the conical cylinder 204 can be removed first. Then, the connecting cylinder 302 can be rotated to separate it from the main cylinder 1. The connecting cylinder 302 can be moved upward until the suction tube 303 is completely separated from the main cylinder 1. The spherical cap 301, the connecting cylinder 302, and the suction tube 303 can then be removed. At this point, the components of the sampling equipment can be easily and quickly cleaned and disinfected.
[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A sampling device for pathological testing, comprising a main cylinder (1), characterized in that: The top and bottom of the main cylinder (1) are both open, and the top opening of the main cylinder (1) is provided with internal threads; A quick-release sampling head mechanism (2) includes a fixed block (201), a spring (202), a movable cylinder (203), a conical cylinder (204), a card seat (205), a vertical plate (206), and a card block (207). The fixed block (201) is an annular block and is fixedly installed inside the main cylinder (1). Multiple springs (202) are provided, and the top ends of the multiple springs (202) are fixedly connected to the fixed block (201). The top of the movable cylinder (203) is fixedly connected to the bottom ends of the multiple springs (202). The movable cylinder (203) is movably sleeved inside the main cylinder (1). The bottom of the movable cylinder (203) is provided with an annular sealing gasket layer (208). The bottom of the conical cylinder (204) is provided with a sampling needle tube. There are two of each of the card holder (205), vertical plate (206) and card block (207). The two card holders (205) are fixedly connected to the two sides of the main cylinder (1). The card holder (205) has a card groove (209) inside. The card holder (205) is U-shaped. Both sides of the conical cylinder (204) are fixedly connected with connecting blocks (210). The bottom of the vertical plate (206) is fixedly connected to the connecting block (210). One side of the vertical plate (206) is fixedly connected with a card block (207). The card block (207) matches and engages with the card groove (209). The top of the conical cylinder (204) abuts and presses against the sealing gasket layer (208). The spring (202) is in a compressed state. A detachable suction mechanism (3) is located at the top and inside of the main cylinder (1) and extends into the interior of the conical cylinder (204).
2. The sampling device for pathological testing according to claim 1, characterized in that: The top of the movable cylinder (203) is fixedly connected with a plurality of telescopic guide rods (211), and the telescopic ends of the telescopic guide rods (211) are fixedly connected to the bottom of the fixed block (201).
3. A sampling device for pathological testing according to claim 2, characterized in that: The multiple springs (202) and the multiple telescopic guide rods (211) are all arranged in a ring array, and the multiple springs (202) and the multiple telescopic guide rods (211) are arranged in an interleaved manner.
4. A sampling device for pathological testing according to claim 1, characterized in that: The outer surface of the movable cylinder (203) is closely fitted to the inner wall of the main cylinder (1), and the outer surface of the movable cylinder (203) is a smooth surface.
5. A sampling device for pathological testing according to claim 1, characterized in that: The detachable suction mechanism (3) includes a spherical cap (301), a connecting cylinder (302), and a suction tube (303). The bottom of the spherical cap (301) is fixedly connected to the top of the connecting cylinder (302). The bottom of the connecting cylinder (302) is provided with an external thread. The bottom of the connecting cylinder (302) is threadedly connected to the top of the main cylinder (1). The top of the suction tube (303) is connected to the bottom of the spherical cap (301). The bottom of the suction tube (303) extends through the fixed block (201) and the movable cylinder (203) into the conical cylinder (204).
6. A sampling device for pathological testing according to claim 5, characterized in that: The outer wall of the suction tube (303) is close to but does not contact the inner wall of the fixed block (201) and the movable cylinder (203).
7. A sampling device for pathological testing according to claim 5, characterized in that: The outer surface of the connecting cylinder (302) is uniformly provided with anti-slip texture.