Tumor sample slicing machine

By introducing a limiting structure and a transmission system into the microtome, the problem of sample slice curling was solved, improving slice quality and observation efficiency, and enhancing the practicality of the microtome.

CN223897063UActive Publication Date: 2026-02-10SHENYANG MEDICAL COLLEGE
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Patent Information

Application Number
CN202520181211.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-02-10
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

Traditional microtome slicers are prone to causing sample slices to curl during cutting, which reduces slice quality and increases the difficulty of subsequent observation.

Method used

The sample is positioned using a structure consisting of guide rails, sliders, moving plates, limiting plates, and push plates. Combined with a transmission system of worm gears, worm wheels, and gears, the stability and smoothness of the sample slicing process are ensured.

Benefits of technology

It effectively prevents sample slices from curling, improves slice quality, reduces the difficulty of subsequent observation, and enhances the practicality of the microtome.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tumor sample slicing machine which comprises a slicing machine body, a sliding rail is fixedly connected to the upper surface of the front side of the slicing machine body, a slicing base is installed on the side surface of the sliding rail in a sliding mode, a pressure plate is fixedly installed on the upper surface of the slicing base, and guide rails are fixedly and symmetrically connected to the surfaces of the two sides of the pressure plate. A cutter is fixedly mounted on the inner side surface of the upper end of the pressure plate, a sliding block is slidably arranged in one end of the guide rail, a moving plate is fixedly connected to one end of the sliding block, a limiting plate is fixedly connected to one end of the moving plate, an anti-sticking plate is fixedly connected to the lower surface of the limiting plate, and a supporting rod is fixedly connected to the outer side surface of the moving plate; a push plate is fixedly connected to one end of the supporting rod, a sliding groove is formed in the surface of the front side of the slicing machine, a supporting plate is slidably arranged in the sliding groove, and a mounting base is fixedly connected to one end of the supporting plate. The slicing quality of the slicing machine is improved, meanwhile, the difficulty degree during follow-up slice observation is reduced, the trouble of follow-up slice observation of workers is reduced, and the practicability of the slicing machine is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a tumor sample slicer. Background Technology

[0002] Pathological sections are one of the main methods of clinical disease diagnosis. They refer to the process of embedding diseased tissue in paraffin blocks using histological methods, staining them, and then examining the lesions under a microscope to make a pathological diagnosis. Pathological sections provide important evidence for clinical diagnosis and treatment, and their preparation process directly affects the specimen observation results. Tumor specimen sections are also a type of pathological section.

[0003] A microtome is generally used for pathological sectioning, which cuts the pathological sample into thin slices. However, during the sectioning process, the thin slices usually fall onto the pressure plate. Because the slices are relatively thin, they are prone to curling, which reduces the quality of the microtome and makes subsequent observation of the slices more difficult, thus increasing the trouble for the staff. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a tumor sample slicer that solves the problem of sample slice curling caused by traditional slicers during sample cutting, improves the slice quality, and reduces the difficulty of subsequent slice observation. This reduces the trouble for staff in subsequent slice observation and further enhances the practicality of the slicer.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tumor sample slicer, comprising a slicer, a slide rail fixedly connected to the upper front surface of the slicer, a slice holder slidably mounted on the side surface of the slide rail, a pressure plate fixedly mounted on the upper surface of the slice holder, guide rails fixedly and symmetrically fixedly connected to both sides of the pressure plate, a cutter fixedly mounted on the inner upper surface of the pressure plate, a slider slidably mounted inside one end of the guide rail, a moving plate fixedly connected to one end of the slider, a limiting plate fixedly connected to one end of the moving plate, an anti-stick plate fixedly connected to the lower surface of the limiting plate, a support rod fixedly connected to the outer surface of the moving plate, a push plate fixedly connected to one end of the support rod, a groove formed on the front surface of the slicer, a support plate slidably mounted inside the groove, a mounting base fixedly connected to one end of the support plate, and a pushing mechanism provided on both sides of the mounting base.

[0006] Preferably, the pushing mechanism includes a side plate, one end of which is fixedly connected to the side surface of the mounting base, and the other end of which is fixedly connected to a wedge block, which is aligned with the push plate.

[0007] Preferably, a spring is fixedly connected to the inner wall of the guide rail, and one end of the spring is fixedly connected to the slider.

[0008] Preferably, a bearing plate is fixedly connected to one end of the support plate, and a lead screw is internally threaded to one end of the bearing plate. A gear II is fixedly connected to the upper side surface of the lead screw, and a worm gear I is meshed with the side surface of gear II. A drive mechanism is fixedly connected to the upper surface of the worm gear I. Both ends of the lead screw are rotatably connected to the inner wall of the slicer.

[0009] Preferably, the driving mechanism includes a rotating disk, which is rotatably connected to one side surface of the slicer. A worm is connected to one side surface of the rotating disk via a transmission shaft, and a worm wheel is meshed with the side surface of the worm. The lower surface of the worm wheel is fixedly connected to the upper surface of the worm gear I. A handle is fixedly connected to the other side surface of the rotating disk.

[0010] Preferably, a limiting rod is slidably connected inside one end of the bearing plate, and both ends of the limiting rod are fixedly connected to the inner wall of the slicer.

[0011] This invention provides a tumor sample slicer. Compared with the prior art, it has the following advantages:

[0012] 1. The guide rails fixedly connected to both sides of the pressure plate and the limiting plate fixedly connected to the inside of the guide rails via sliders and moving plates, along with the support rods, push plates, and wedge blocks fixedly connected to both sides of the mounting base on the outer surface of the moving plate, work together to limit the sample throughout the sample slicing process, preventing sample slices from curling and improving the slice quality of the microtome. At the same time, it reduces the difficulty of subsequent slice observation, thus reducing the trouble for staff to observe the slices and further improving the practicality of the microtome.

[0013] 2. The worm gear and the worm wheel connected to the side surface of the worm gear are connected to the worm gear I fixed to the lower surface of the worm wheel and the worm gear II connected to the side surface of the worm gear I. This interaction reduces the transmission ratio of the drive to move the mounting base and makes the movement of the mounting base smoother and more stable, thereby further improving the quality of the sample slices. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the pressure plate in this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the slicer in this utility model;

[0017] Figure 4This is a schematic diagram of the limiting plate in this utility model.

[0018] In the diagram: 1. Slicer; 101. Handle; 102. Rotary disk; 103. Drive shaft; 104. Worm gear; 2. Slicing holder; 201. Slide rail; 202. Pressure plate; 203. Limiting plate; 2031. Push plate; 2032. Support rod; 2033. Anti-stick plate; 2034. Slider; 2035. Moving plate; 204. Cutter; 206. Guide rail; 207. Spring; 3. Worm gear; 301. Gear I; 302. Gear II; 303. Bearing plate; 304. Lead screw; 305. Support plate; 306. Limiting rod; 4. Mounting base; 401. Wedge block; 402. Side plate. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a tumor sample slicer, including a slicer 1. A slide rail 201 is fixedly connected to the upper front surface of the slicer 1. A slice holder 2 is slidably mounted on the side surface of the slide rail 201. A pressure plate 202 is fixedly mounted on the upper surface of the slice holder 2. Guide rails 206 are symmetrically fixedly connected to both sides of the pressure plate 202. A cutter 204 is fixedly mounted on the inner upper surface of the pressure plate 202. A slider 2034 is slidably provided inside one end of the guide rail 206. A movable plate 2035 is fixedly connected to one end of the movable plate 2035. A limit plate 203 is fixedly connected to one end of the movable plate 2035. An anti-stick plate 2033 is fixedly connected to the lower surface of the limit plate 203. A support rod 2032 is fixedly connected to the outer surface of the movable plate 2035. A push plate 2031 is fixedly connected to one end of the support rod 2032. A groove is opened on the front surface of the slicer 1. A support plate 305 is slidably arranged inside the groove. A mounting base 4 is fixedly connected to one end of the support plate 305. Pushing mechanisms are provided on both sides of the mounting base 4.

[0021] As a technical optimization of this utility model, the pushing mechanism includes a side plate 402. One end of the side plate 402 is fixedly connected to the side surface of the mounting base 4, and the other end of the side plate 402 is fixedly connected to a wedge block 401. The wedge block 401 is aligned with the push plate 2031, which facilitates pushing the push plate 2031 to move, thereby allowing the push plate 2031 to push the limiting plate 203 to move along the pressure plate 202, so as to always press the sample slice.

[0022] As a technical optimization of this utility model, a spring 207 is fixedly connected to the inner wall of the guide rail 206. One end of the spring 207 is fixedly connected to the slider 2034. The spring 207 can limit the position of the limiting plate 203 to prevent the limiting plate 203 from sliding downward under gravity. At the same time, it can push the limiting plate 203 to reset so that it can be used for the next slice.

[0023] As a technical optimization of this utility model, a support plate 305 is fixedly connected to a bearing plate 303 at one end, and a lead screw 304 is internally threaded to one end of the bearing plate 303. A gear II 302 is fixedly connected to the upper side surface of the lead screw 304, and a worm gear I 301 is meshed with the side surface of the gear II 302. A drive mechanism is fixedly connected to the upper surface of the worm gear I 301. Both ends of the lead screw 304 are rotatably connected to the inner wall of the slicer 1. Through the cooperation of the gear II 302, the worm gear I 301 and the bearing plate 303, the mounting base 4 can be adjusted up and down by the support plate 305, thereby slicing the sample.

[0024] As a technical optimization of this utility model, the driving mechanism includes a rotating disk 102, which is rotatably connected to one side surface of the slicer 1. A worm gear 104 is connected to one side surface of the rotating disk 102 via a transmission shaft 103. A worm wheel 3 is meshed with the side surface of the worm gear 104. The lower surface of the worm wheel 3 is fixedly connected to the upper surface of the worm gear I 301. A handle 101 is fixedly connected to the other side surface of the rotating disk 102. The driving mechanism can drive the worm gear I 301 to rotate. Therefore, the worm gear I 301 can drive the mounting base 4 to move up and down through the gear II 302.

[0025] As a technical optimization of this utility model, a limiting rod 306 is slidably connected inside one end of the bearing plate 303. The two ends of the limiting rod 306 are fixedly connected to the inner wall of the slicer 1, which can limit the bearing plate 303 and further improve the stability of the bearing plate 303, the support plate 305 and the mounting base 4.

[0026] In use, the tumor sample is first fixed to the front surface of the mounting base 4. The operator then rotates the rotating disk 102 via handle 101. The rotating disk 102 then drives the worm gear 104 to rotate via the transmission shaft 103. The worm gear 104 then drives the worm gear I 301 to rotate via the worm wheel 3. The worm gear I 301 then drives the gear II 302 to rotate, which in turn drives the lead screw 304 to rotate. The lead screw 304 then moves the support plate 303 up and down. Simultaneously, the support plate 303 moves the mounting base 4 up and down via the support plate 305. The mounting base 4 then moves the tumor sample up and down on the pressure plate 2. The inner surface of plate 202 moves up and down, thereby slicing the sample by the cutter 204 mounted on the rear surface of pressure plate 202. At this time, one end of the sample sliced ​​by cutter 204 will be located between the anti-stick plate 2033 on the lower surface of pressure plate 202 and limiting plate 203. The anti-stick plate 2033 limits the sliced ​​sample. When the mounting base 4 moves downward to slice, the wedge block 401 at one end of side plate 402 will squeeze the push plate 2031. At this time, the push plate 2031 will drive the limiting plate 203 to move towards the lower end of pressure plate 202. Therefore, the sliced ​​sample can be limited throughout the process to prevent the slice from curling.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] 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 tumor sample slicer, comprising a slicer (1), characterized in that: The slicer (1) has a slide rail (201) fixedly connected to its front upper surface, and a slicer seat (2) is slidably mounted on the side surface of the slide rail (201). A pressure plate (202) is fixedly mounted on the upper surface of the slicer seat (2), and guide rails (206) are fixedly and symmetrically connected to both sides of the pressure plate (202). A cutter (204) is fixedly mounted on the inner surface of the upper end of the pressure plate (202). A slider (2034) is slidably provided inside one end of the guide rail (206), and a moving plate (2035) is fixedly connected to one end of the slider (2034). One end of the movable plate (2035) is fixedly connected to a limiting plate (203), and the lower surface of the limiting plate (203) is fixedly connected to an anti-stick plate (2033). The outer surface of the movable plate (2035) is fixedly connected to a support rod (2032), and one end of the support rod (2032) is fixedly connected to a push plate (2031). The front surface of the slicer (1) is provided with a sliding groove, and a support plate (305) is slidably provided inside the sliding groove. One end of the support plate (305) is fixedly connected to a mounting base (4), and the two sides of the mounting base (4) are provided with a pushing mechanism.

2. A tumor sample slicer according to claim 1, characterized in that: The pushing mechanism includes a side plate (402), one end of which is fixedly connected to the side surface of the mounting base (4), and the other end of the side plate (402) is fixedly connected to a wedge block (401), and the wedge block (401) is aligned with the push plate (2031).

3. A tumor sample slicer according to claim 1, characterized in that: A spring (207) is fixedly connected to the inner wall of the guide rail (206), and one end of the spring (207) is fixedly connected to the slider (2034).

4. A tumor sample slicer according to claim 1, characterized in that: One end of the support plate (305) is fixedly connected to the bearing plate (303), and one end of the bearing plate (303) is internally threaded with a lead screw (304). The upper side surface of the lead screw (304) is fixedly connected to a gear II (302), and the side surface of the gear II (302) is meshed with a worm gear I (301). The upper surface of the worm gear I (301) is fixedly connected to a drive mechanism. Both ends of the lead screw (304) are rotatably connected to the inner wall of the slicer (1).

5. A tumor sample slicer according to claim 4, characterized in that: The driving mechanism includes a rotating disk (102), and the rotating disk (102) is rotatably connected to one side surface of the slicer (1). One side surface of the rotating disk (102) is connected to a worm (104) via a transmission shaft (103), and the side surface of the worm (104) is meshed with a worm wheel (3). The lower surface of the worm wheel (3) is fixedly connected to the upper surface of the worm gear I (301). The other side surface of the rotating disk (102) is fixedly connected to a handle (101).

6. A tumor sample slicer according to claim 4, characterized in that: One end of the bearing plate (303) is internally connected to a limiting rod (306), and both ends of the limiting rod (306) are fixedly connected to the inner wall of the slicer (1).