A specimen sampler for pathological studies
By designing a detachable external threaded groove and elastic structure in the pathological specimen sampler, the problem of inconvenient cleaning was solved, enabling effective specimen cleaning and improving the accuracy of pathological research.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 175TH HOSPITAL OF PEOPLES LIBERATION ARMY
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pathological specimen sampling devices are cumbersome to clean and have poor cleaning results, leading to specimen residue and affecting the accuracy of pathological research.
The design incorporates external and internal threaded grooves, allowing the sampling blade and connecting cap to be disassembled by rotation for easy cleaning. The limiting block, pressing block, and sampling column form an elastic structure, and the specimen can be removed by sliding the pressing block. The through-groove design facilitates cleaning with liquid.
This improved the cleanliness of the device, prevented specimen residue, enhanced the accuracy of pathological studies, and prevented subsequent sampling specimens from being mixed with residual specimens.
Smart Images

Figure CN224535456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of specimen sampler technology, specifically to a specimen sampler for pathological research. Background Technology
[0002] Specimen samplers are specialized tools used in pathological research and clinical diagnosis to collect samples of human or animal tissues, body fluids, etc. In the field of medical research, accurate pathological diagnosis plays a decisive role in the formulation of disease treatment plans, and specimen sampling, as a crucial initial step in pathological research, is of paramount importance. The collection of histopathological specimens refers to the process of collecting representative portions from whole or large tissue blocks to prepare pathological sections for histopathological diagnosis; it is a very important step in histopathological diagnosis.
[0003] Chinese utility model patent CN220729660U discloses a pathological specimen sampler, which includes "a removal hole inside the handle, the removal hole communicating with the interior of the hollow sampling needle, the removal rod passing through the removal hole, and the removal rod being pushed along the direction of the removal hole to quickly remove the tissue sample inside the sampling needle"; however, the removal rod and the limiting block are both located inside the handle, making them impossible to disassemble, thus the cleaning process is cumbersome and the cleaning effect is poor. After sampling, some specimen tissue remains on the surface of the removal rod and inside the sampling needle. Poor cleaning effect will cause subsequent sampling specimens to mix with the previously remaining specimen tissue, thereby reducing the accuracy of pathological research. Utility Model Content
[0004] The purpose of this invention is to provide a specimen sampler for pathological research to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a specimen sampler for pathological research, comprising a main body, a fixed sleeve fixedly connected to the bottom of the main body, a sampling blade threadedly connected to the bottom of the main body inside the fixed sleeve, a fixed block fixedly connected to the top of the main body, a connecting cover threadedly connected to the top of the main body outside the fixed block, rotating parts fixedly connected to the outer sides of the connecting cover, a sampling column vertically installed through the inner side of the main body, a limiting block fixedly connected to the top of the sampling column, a pressing block fixedly connected to the top of the limiting block, and a spring sleeved below the limiting block on the outer side of the sampling column.
[0006] The beneficial effects of this utility model are as follows: By adding a first external threaded groove and a first internal threaded groove, the sampling blade can be detached from the main body by rotation, thereby facilitating the disassembly of the sampling blade and the inner through groove for cleaning, thus preventing specimen residue. Simultaneously, by adding a second external threaded groove and a second internal threaded groove, the connecting cover can be disassembled by rotation, allowing the limiting block, pressing block, and sampling column to be disassembled as a whole. This facilitates the cleaning of the column, the main body, and the inner through groove, preventing specimen residue from affecting subsequent specimen collection. This increases the cleanliness of the device, avoids mixing of subsequent sampled specimens with previously remaining specimen tissue, and ultimately improves the accuracy of pathological research.
[0007] To allow for the disassembly of the sampling tip: The sampling head is further configured such that the upper outer side of the sampling head is provided with a first external thread groove, and the inner side of the fixing sleeve is provided with a first internal thread groove.
[0008] By adopting the above technical solution, the first external thread groove can be disengaged from the first internal thread groove by rotation, thereby enabling the sampling cutter head to be disassembled and cleaned.
[0009] To allow for the removal of the connecting cover: The fixing block is further configured such that a second external thread groove is provided on the outer side, and a second internal thread groove is provided on the lower inner side of the connecting cover.
[0010] By adopting the above technical solution, the second external thread groove can be disassembled from the second internal thread groove by rotation, thereby allowing the connecting cover to be disassembled. This allows for the disassembly of the limiting block, pressing block, and sampling column, enabling the corresponding cleaning work and preventing specimen residues on the sampling column surface from affecting subsequent specimen collection.
[0011] To enable the specimen retrieval process: Further configuration: the limiting block, the pressing block and the spring form an elastic structure, and the inner sides of the main body, the sampling blade and the fixing block are all provided with through grooves that are consistent with the external dimensions of the sampling column. The external dimensions of the limiting block are consistent with the internal dimensions of the connecting cover, and the top center of the connecting cover is provided with a slot that is consistent with the external dimensions of the pressing block.
[0012] By adopting the above technical solution, after the specimen is cut, the pressing block can be pressed. The pressing block will slide inside the groove, and at the same time, the spring will undergo elastic deformation, thereby moving the sampling column in the through groove, squeezing out the specimen from the sampling head, so that the specimen can be removed for subsequent pathological research.
[0013] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main view of this utility model; Figure 2 This is a schematic diagram of the main sectional view of this utility model; Figure 3 This is a front view exploded view of the present invention; Figure 4 This is a schematic diagram of the exploded cross-section of the main view of this utility model.
[0015] In the diagram: 1. Main body; 2. Fixed sleeve; 3. Sampling blade; 4. Fixed block; 5. Connecting cover; 6. Rotating component; 7. Sampling column; 8. Limiting block; 9. Pressing block; 10. Spring. Detailed Implementation
[0016] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0017] Please see Figures 1 to 4 A specimen sampler for pathological research includes a main body 1, a fixed sleeve 2 fixedly connected to the bottom of the main body 1, a sampling blade 3 threadedly connected to the bottom of the main body 1 inside the fixed sleeve 2, a fixed block 4 fixedly connected to the top of the main body 1, a connecting cover 5 threadedly connected to the top of the main body 1 outside the fixed block 4, rotating parts 6 fixedly connected to the outer sides of the connecting cover 5, a sampling column 7 vertically installed through the inner side of the main body 1, a limiting block 8 fixedly connected to the top of the sampling column 7, a pressing block 9 fixedly connected to the top of the limiting block 8, and a spring 10 sleeved below the limiting block 8 on the outer side of the sampling column 7.
[0018] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the upper outer side of the sampling head 3 is provided with a first external thread groove, and the inner side of the fixing sleeve 2 is provided with a first internal thread groove.
[0019] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the outer side of the fixing block 4 is provided with a second external thread groove, and the lower inner side of the connecting cover 5 is provided with a second internal thread groove.
[0020] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the limiting block 8, the pressing block 9 and the spring 10 form an elastic structure. The inner sides of the main body 1, the sampling blade 3 and the fixing block 4 are all provided with through grooves that are consistent with the external dimensions of the sampling column 7. The external dimensions of the limiting block 8 are consistent with the internal dimensions of the connecting cover 5. At the same time, the top center of the connecting cover 5 is provided with a slot that is consistent with the external dimensions of the pressing block 9.
[0021] The working process of this specimen sampler used in pathological research is as follows: First, grasp the main body 1 and place the sampling head 3 against the area to be sampled. Then, rotate the rotating component 6 to make the sampling head 3 rotate, thereby cutting the required specimen. At this time, the specimen is located inside the through groove of the sampling head 3, and the sampling process is complete. Then, press the pressing block 9 to cause the spring 10 to deform elastically, thereby causing the sampling column 7 to slide within the through groove of the main body 1, the sampling head 3, and the fixing block 4. At the same time, the limiting block 8 will slide inside the connecting cover 5, thereby squeezing the specimen out of the sampling head 3 through the sampling column 7, thus completing the sample collection. The sampling head 3 is removed to facilitate subsequent pathological research. When cleaning is required, the sampling head 3 is rotated to separate the first external thread groove from the first internal thread groove, thereby disassembling the sampling head 3. Then, the connecting cover 5 is rotated to separate the second external thread groove from the second internal thread groove, thereby disassembling the connecting cover 5. At this time, the limiting block 8, the pressing block 9, and the sampling column 7 can be disassembled as a whole, so as to clean the sampling head 3 and the sampling column 7. At the same time, water can be injected into the inside of the through groove to clean the through groove and avoid specimen residue.
[0022] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0023] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0024] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A specimen sampler for pathological research, comprising a main body (1), characterized in that: The bottom of the main body (1) is fixedly connected to a fixed sleeve (2). The bottom of the main body (1) is threadedly connected to the inner side of the fixed sleeve (2). The top of the main body (1) is fixedly connected to a fixed block (4). The top of the main body (1) is threadedly connected to the outer side of the fixed block (4). Rotating parts (6) are fixedly connected to the outer sides of the connecting cover (5). A sampling column (7) is vertically installed through the inner side of the main body (1). A limiting block (8) is fixedly connected to the top of the sampling column (7). A pressing block (9) is fixedly connected to the top of the limiting block (8). A spring (10) is sleeved on the outer side of the sampling column (7) below the limiting block (8).
2. The specimen sampler for pathological research as described in claim 1, characterized in that: The upper outer side of the sampling blade (3) is provided with a first external thread groove, and the inner side of the fixing sleeve (2) is provided with a first internal thread groove.
3. A specimen sampler for pathological research as described in claim 1, characterized in that: The outer side of the fixing block (4) is provided with a second external thread groove, and the lower inner side of the connecting cover (5) is provided with a second internal thread groove.
4. A specimen sampler for pathological research as described in claim 1, characterized in that: The limiting block (8), pressing block (9) and spring (10) form an elastic structure. The inner sides of the main body (1), sampling blade (3) and fixing block (4) are all provided with through grooves that are consistent with the external dimensions of the sampling column (7). The external dimensions of the limiting block (8) are consistent with the internal dimensions of the connecting cover (5). At the same time, the top center of the connecting cover (5) is provided with a slot that is consistent with the external dimensions of the pressing block (9).