Slicing machine for biomedicine
By combining the tilting slicing blade and the rotation of the motor-driven support plate with a screw lifting mechanism, the problems of low efficiency and uneven slicing of the microtome are solved, achieving uniformity and controllability of the slices, which facilitates subsequent observation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN REHABILITATION CENT OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-28
AI Technical Summary
Existing microtome machines are inefficient, produce uneven slices, and are difficult to cut slices of different sizes as needed, which affects subsequent observation.
By employing an inclined slicing blade and a motor-driven support plate rotation combined with a screw lifting mechanism, the circumferential spiral slicing of the sample block and the uniform control of the slice thickness are achieved.
This achieves uniformity and controllability of the sections, improves sectioning efficiency, and facilitates subsequent observation and diagnosis.
Smart Images
Figure CN224169878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the medical field, and in particular to a biomedical slicer. Background Technology
[0002] A microtome is a machine used to cut thin, uniform tissue sections. The tissue is supported by hard paraffin or other materials. With each cut, a thickness gauge automatically advances the tissue forward (towards the blade) the required distance. The thickness gauge's gradient is typically 1 micrometer. When cutting paraffin-embedded tissue, multiple sections are created by adhering to the wax edges of the previous section.
[0003] In medicine, a tissue slide is a thin section taken from human tissue or organ for microscopic examination or other diagnostic procedures. Slides are obtained through surgery or biopsy to observe the tissue's structure and cellular characteristics in order to make a diagnosis or assess disease conditions. Slides can be used for pathological examination, disease diagnosis, treatment planning, cancer research, and more.
[0004] Currently, there are two methods for sectioning: manual sectioning, which is inefficient and produces uneven sections; and microtome, which is mostly reciprocating, causing sections to overlap and break easily, and preventing the sections from being cut to the required size, thus affecting subsequent observation. How to produce uniform sections is an important problem that needs to be solved. Therefore, a biomedical microtome has been invented to solve the sectioning problem. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a biomedical slicer.
[0006] This utility model is achieved through the following technical solution:
[0007] A biomedical microtome includes a storage box with an end cap at the upper right corner. A movable part is installed between the end cap and the storage box. A guide groove is formed on the end cap, and a microtome blade is installed at the guide groove. A door is installed at the front of the storage box. A support frame is installed below the storage box, and a base is installed below the support frame. Support rods are symmetrically installed between the base and the support frame. A collar is fixedly installed at the left side of the middle of the support frame, and a screw is fitted inside the collar. A second motor is located to the left of the screw, and a gear is fitted on the motor shaft of the second motor. A connecting frame is fixedly installed between the second motor and the support frame. A guide ring is installed on the right side of the surface, and a first motor is fitted inside the guide ring. A first rotating shaft is mounted on the upper side of the first motor, and a first pulley is fixedly fitted on the surface of the first rotating shaft. A connecting plate is fixedly installed on the left side of the first motor, and a support is fixedly installed on the left side of the connecting plate. A second rotating shaft is mounted on the upper side of the support, and a second pulley is fitted on the outer surface of the second rotating shaft. A belt is fitted between the first pulley and the second pulley. A support plate is fixedly installed at the top of the second rotating shaft, and guide blocks are symmetrically installed on the upper surface of the support plate. A sliding rod is fitted inside the guide block, and a helical spring is fitted on the outer surface of the sliding rod. A clamping plate is installed at the inner end of the sliding rod.
[0008] As a preferred embodiment of this invention, the slicing blade is inclined.
[0009] As a preferred embodiment of this invention, the first motor is slidably coupled with the guide ring.
[0010] As a preferred embodiment of this utility model, the screw has a fine thread, the thread on the screw corresponds to the groove of the gear, and the gear is a helical gear.
[0011] As a preferred embodiment of this utility model, the screw and the collar are slidably fitted, and the screw and the support are movably connected.
[0012] As a preferred embodiment of this utility model, the second rotating shaft is movably connected to the support, and the second rotating shaft is fixedly installed to the support plate.
[0013] As a preferred embodiment of this utility model, the slide rod is slidably engaged with the guide block, and a nut is fitted onto the surface of the slide rod.
[0014] As a preferred embodiment of this utility model, the door and the storage box are movably assembled.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention utilizes an inclined slicing blade for easy slicing of samples. The slicing operation is achieved by rotating the tissue while the blade remains stationary. A first motor drives a support plate to rotate, facilitating a circular spiral slicing operation. A second motor, along with gears and a screw, controls the raising and lowering of the support plate, ensuring accurate and uniform slicing for subsequent observation. A door allows for easy monitoring of the slices within the storage box. This invention achieves slicing by rotating the sample and using a slicing blade, while the raised and lowered control allows for uniform control of the slice thickness. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a schematic diagram showing the positional relationship between the support plate and the clamping plate of this utility model.
[0019] Figure 3 This is a schematic diagram of the end cap of this utility model after it is closed.
[0020] In the diagram: 1. Slicing blade, 2. Guide groove, 3. End cap, 4. Movable part, 5. Storage box, 6. Support frame, 7. Support rod, 8. Base, 9. First pulley, 10. Belt, 11. First shaft, 12. Connecting plate, 13. Guide ring, 14. First motor, 15. Screw, 16. Collar, 17. Gear, 18. Second motor, 19. Connecting frame, 20. Support, 21. Second pulley, 22. Second shaft, 23. Support plate, 24. Door, 25. Helical spring, 26. Guide block, 27. Slide rod, 28. Clamping plate. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-3 This utility model provides a technical solution:
[0023] A biomedical microtome includes a storage box 5, with an end cap 3 mounted on the upper right corner of the storage box 5. A movable part 4 is installed between the end cap 3 and the storage box 5. A guide groove 2 is provided on the end cap 3, and a microtome blade 1 is installed at the guide groove 2. A door 24 is installed at the front of the storage box 5. A support frame 6 is installed below the storage box 5, and a base 8 is provided below the support frame 6. Support rods 7 are symmetrically installed between the base 8 and the support frame 6. A collar 16 is fixedly installed at the left side of the middle of the support frame 6, and a screw 15 is fitted inside the collar 16. A second motor 18 is located to the left of the screw 15, and a gear 17 is fitted on the motor shaft of the second motor 18. A connecting frame 19 is fixedly installed between the second motor 18 and the support frame 6. A connecting frame 19 is installed on the right side of the surface of the support frame 6. A guide ring 13 is fitted inside the guide ring 13. A first motor 14 is mounted on the upper side of the first motor 14. A first pulley 9 is fixedly fitted on the surface of the first pulley 11. A connecting plate 12 is fixedly installed on the left side of the first motor 14. A support 20 is fixedly installed on the left side of the connecting plate 12. A second shaft 22 is mounted on the upper side of the support 20. A second pulley 21 is fitted on the outer surface of the second shaft 22. A belt 10 is fitted between the first pulley 9 and the second pulley 21. A support plate 23 is fixedly installed at the top of the second shaft 22. Guide blocks 26 are symmetrically installed on the upper surface of the support plate 23. A sliding rod 27 is fitted inside the guide block 26. A helical spring 25 is fitted on the outer surface of the sliding rod 27. A clamping plate 28 is installed at the inner end of the sliding rod 27.
[0024] The slicing blade 1 is set at an angle.
[0025] The first motor 14 is in sliding engagement with the guide ring 13.
[0026] The screw 15 has a fine thread, and the thread on the screw 15 corresponds to the groove of the gear 17, which is a helical gear.
[0027] The screw 15 is slidably engaged with the collar 16, and the screw 15 is movably connected to the support 20.
[0028] The second rotating shaft 22 is movably connected to the support 20, and the second rotating shaft 22 is fixedly installed to the support plate 23.
[0029] The slide rod 27 is slidably engaged with the guide block 26, and a nut is fitted on the surface of the slide rod 27.
[0030] The door 24 is movably assembled with the storage box 5.
[0031] The support plate 23 has a disc structure, and the storage box 5 has a cylindrical structure.
[0032] Working principle: When slicing, the block to be sliced is first placed between the clamping plates 28, then the end cap 3 is placed on top, and the switch of the first motor 14 is turned on. The belt 10, in conjunction with the first pulley 9 and the second pulley 21, drives the support plate 23 to rotate circumferentially, allowing the slicing blade 1 to slice. The sliced pieces are squeezed out from the guide groove 2. At the same time, the switch of the second motor 18 is turned on, which drives the gear 17 to rotate. The gear 17 meshes with the screw 15, causing the screw 15 to rise slowly, which in turn drives the support plate 23 to rise. During the slicing process, the slices are sliced evenly, thereby improving the slicing effect.
[0033] 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 biomedical slicer, comprising a storage box (5), characterized in that: The storage box (5) is equipped with an end cap (3) at the upper right corner. A movable part (4) is installed between the end cap (3) and the storage box (5). A guide groove (2) is provided on the end cap (3). A slicing knife (1) is installed at the position of the guide groove (2). A door (24) is installed in front of the storage box (5). A support frame (6) is installed below the storage box (5). A base (8) is set below the support frame (6). Support rods (7) are symmetrically installed between the base (8) and the support frame (6). A collar (16) is fixedly installed in the middle left position of the support frame (6). A screw (15) is fitted inside the collar (16). A second motor (18) is set on the left side of the screw (15). A gear (17) is fitted on the motor shaft of the second motor (18). A connecting frame (19) is fixedly installed between the second motor (18) and the support frame (6). A guide ring (13) is installed on the right side of the surface of the support frame (6). A first motor (14) is fitted inside the guide ring (13). A first rotating shaft (11) is mounted on the upper side of the first motor (14). A first pulley (9) is fixedly fitted on the surface of the first rotating shaft (11). A connecting plate (12) is fixedly installed on the left side of the first motor (14). A support (20) is fixedly installed on the left side of the connecting plate (12). A second rotating shaft (22) is mounted on the upper side of the support (20). A second pulley (21) is fitted on the outer surface of the second rotating shaft (22). A belt (10) is fitted between the first pulley (9) and the second pulley (21). A support plate (23) is fixedly installed at the top of the second rotating shaft (22). Guide blocks (26) are symmetrically installed on the upper surface of the support plate (23). A slide rod (27) is fitted inside the guide block (26). A spiral spring (25) is fitted on the outer side of the slide rod (27). A clamping plate (28) is installed at the inner end of the slide rod (27).
2. A biomedical slicer according to claim 1, characterized in that: The slicing blade (1) is set at an angle.
3. A biomedical slicer according to claim 1, characterized in that: The first motor (14) is in sliding engagement with the guide ring (13).
4. A biomedical slicer according to claim 1, characterized in that: The screw (15) has a fine thread, and the thread on the screw (15) corresponds to the groove of the gear (17), which is a helical gear.
5. A biomedical slicer according to claim 1, characterized in that: The screw (15) is slidably engaged with the collar (16), and the screw (15) is movably connected with the support (20).
6. A biomedical slicer according to claim 1, characterized in that: The second rotating shaft (22) is movably connected to the support (20), and the second rotating shaft (22) is fixedly installed on the support plate (23).
7. A biomedical slicer according to claim 1, characterized in that: The slide rod (27) is slidably engaged with the guide block (26), and a nut is fitted on the surface of the slide rod (27).
8. A biomedical slicer according to claim 1, characterized in that: The door (24) is movably assembled with the storage box (5).
9. A biomedical slicer according to claim 1, characterized in that: The support plate (23) has a disc structure, and the storage box (5) has a cylindrical structure.