Device facilitating tissue slicing

Abstract

The utility model relates to the technical field of medical experiments, in particular to a device convenient for tissue slicing, which comprises a base, a knife rest, a knife bar, a blade, a lifting component and an adjusting component. The animal viscera tissue slicing device is reasonable and compact in structure, according to the requirement for animal viscera tissue slicing, the distance between every two adjacent blades is adjusted through the adjusting assembly, then animal viscera tissue is fixed to the base below the blades, then the tool rest is made to move downwards through the lifting assembly, and when the tool rest moves downwards, the tool rest moves downwards. All the blades are driven to cut the visceral tissue, so that the operation of slicing the visceral tissue of the animal is completed, the distance between all the blades can be adjusted at a time through the adjusting assembly, the distance between every two adjacent blades is the same, the slicing thickness is more uniform, the deviation of experimental results is reduced, and the working efficiency is improved. And the situation that slices with different qualities are possibly generated through operation of different people can be avoided, the consistency and repeatability of each time of slicing can be guaranteed, and the slicing efficiency can be improved by arranging the multiple blades.

Description

Technical Field

[0001] The utility model relates to the technical field of medical experiments and is a device convenient for tissue sectioning. Background Art

[0002] In scientific research experiments, it is often necessary to retain sections of animal visceral tissues. The importance lies in the following points: 1) Microscopic structure observation can clearly observe microscopic details such as cell morphology, tissue structure, and the relationship between cells in the tissue, which helps to deeply understand the normal physiological structure and function of organs; 2) Pathological analysis can help discover the characteristics of diseased tissues, such as cell lesions, inflammatory reactions, tumor formation, etc., which is crucial for the study of disease mechanisms and diagnosis; 3) Drug research and development can be used to evaluate the effects of drugs on tissues and observe the changes in tissues under the action of drugs, providing a basis for drug screening and efficacy evaluation; 4) Developmental research to understand the changes and characteristics of visceral tissues in animals at different developmental stages, revealing developmental laws and mechanisms; 5) Comparative research to conduct section comparisons under different species or different experimental conditions to discover differences and similarities, promoting the progress of related research; 6) Mechanism exploration to provide intuitive evidence and clues for exploring the internal mechanisms of various physiological, pathological, and biological processes; 7) Accumulating a large amount of tissue morphology data for research in this field, enriching scientific research resources and knowledge systems.

[0003] Currently, manual sectioning of animal visceral tissues is often carried out in experiments, and there are still some drawbacks: large errors. Due to the instability of manual operation, the thickness of the sections is uneven, which easily leads to large deviations in experimental results; low efficiency. The manual sectioning speed is slow, which may affect the entire experimental process; poor repeatability. Different people's operations may produce sections of different qualities, and it is difficult to ensure the consistency and repeatability of each section; high technical requirements. It depends greatly on the technical level and experience of the operator, and it may be difficult for novices to cut high-quality sections; easy to get tired. Long-term manual sectioning operations are prone to making people tired, which may in turn affect the section quality; additional damage may be introduced. During the operation process, additional damage to the tissue may be caused due to inappropriate techniques, etc. Summary of the Invention

[0004] The utility model provides a device convenient for tissue sectioning, which overcomes the above-mentioned deficiencies of the prior art and can effectively solve the problems of low efficiency and poor repeatability in the existing experiments of manually sectioning animal visceral tissues.

[0005] The technical solution of the present utility model is achieved by the following measures: A device for facilitating tissue sectioning, comprising a base, a tool rest, a tool bar, a blade, a lifting assembly, and an adjusting assembly. A tool rest is provided above the base. A front guide plate is fixedly installed on the front side of the tool rest. A plurality of front guide holes are provided at intervals left and right on the front side of the front guide plate. The distance between every two adjacent front guide holes decreases synchronously from top to bottom. Front guide wheels are installed in the front guide holes. A tool bar is installed on the upper side of the tool rest corresponding to the rear position of the front guide plate. A sliding sleeve corresponding to each front guide hole is sleeved outside the tool bar. A front rotating shaft is fixedly installed on the outer side of the front part of each sliding sleeve. The front end of the front rotating shaft is rotatably installed together with the corresponding front guide wheel. A blade is fixedly installed on the lower side of each sliding sleeve. An adjusting assembly capable of moving the tool bar up and down is provided on the upper part of the tool rest. When the tool bar moves downward, all the front guide wheels move downward in the corresponding front guide holes and all the blades approach equidistantly. When the tool bar moves upward, all the front guide wheels move upward in the corresponding front guide holes and all the blades move away equidistantly. A lifting assembly capable of moving the tool rest up and down is provided on the upper side of the left part of the base.

[0006] The following is a further optimization and / or improvement of the above technical solution of the utility model:

[0007] The above lifting assembly may include a fixed rod, an adjusting sleeve, and a locking screw. A fixed rod is fixedly installed on the upper side of the left part of the base. An adjusting sleeve is sleeved outside the fixed rod. A radially penetrating connecting screw hole is provided on the outer side of the left part of the adjusting sleeve. A locking screw with an end abutting against the fixed rod is screwed in the connecting screw hole. The left side of the tool rest is fixedly installed on the outer side of the right part of the adjusting sleeve.

[0008] The above tool rest may include a connecting plate, a left mounting plate, and a right mounting plate. The connecting plate is in a T shape. The left side of the connecting plate is fixedly installed on the outer side of the right part of the adjusting sleeve. The rear side of the left end of the front guide plate is fixedly installed on the front side of the right part of the connecting plate. A rear guide plate having the same structure as the front guide plate is fixedly installed on the rear side of the connecting plate. Rear guide holes corresponding to the front guide holes one by one are provided on the rear side of the rear guide plate. Rear guide wheels having the same structure as the front guide wheels and symmetrically arranged are installed in each rear guide hole. Rear rotating shafts having the same structure as the front rotating shafts and symmetrically distributed are installed between the front end of each rear guide wheel and the rear part of the corresponding sliding sleeve. The left mounting plate and the right mounting plate are fixedly installed at intervals left and right between the lower parts of the front guide plate and the rear guide plate.

[0009] The above-mentioned adjusting assembly may include an adjusting shaft, a first lifting lead screw, and a second lifting lead screw. A left shaft seat and a right shaft seat are respectively and fixedly installed on the upper sides of the left and right parts of the front guide plate. The outer side of the left part of the adjusting shaft is rotatably installed in the left shaft seat, and the outer side of the right part of the adjusting shaft is rotatably installed in the right shaft seat. A first driving bevel gear and a second driving bevel gear are fixedly installed at left and right intervals on the outer side of the adjusting shaft corresponding to the position between the left shaft seat and the right shaft seat. A first lifting lead screw is rotatably installed on the upper side of the left mounting plate, and a first driven bevel gear meshing with the first driving bevel gear is fixedly installed at the upper end of the first lifting lead screw. A second lifting lead screw is rotatably installed on the upper side of the right mounting plate, and a second driven bevel gear meshing with the second driving bevel gear is fixedly installed at the upper end of the second lifting lead screw. A left lead screw nut fixedly installed with the left end of the tool bar is screwed on the outer side of the first lifting lead screw, and a right lead screw nut fixedly installed with the right end of the tool bar is screwed on the outer side of the second lifting lead screw.

[0010] A handle may be fixedly installed on the outer side of the right end of the adjusting shaft corresponding to the right side of the right shaft seat. The rear sides of the left shaft seat and the right shaft seat are respectively fixedly installed with the corresponding positions on the upper side of the rear guide plate.

[0011] On the upper side of the base corresponding to the position between the front guide plate and the rear guide plate, a left clamping plate and a right clamping plate may be slidably installed at intervals.

[0012] A front guiding assembly may be provided on the front side of the left clamping plate. The front guiding assembly includes a first front slider, a second front slider, a left fixing plate, and a right fixing plate. On the upper side of the front part of the base corresponding to the front of the left clamping plate, a T-shaped front sliding groove with a rightward opening and a narrower upper part and a wider lower part is provided. The first front slider and the second front slider are slidably installed at left and right intervals inside the front sliding groove. A left fixing plate is fixedly installed between the upper side of the first front slider and the lower front side of the left clamping plate, and a right fixing plate is fixedly installed between the upper side of the second front slider and the lower front side of the right clamping plate. A rear guiding assembly with the same structure as the front guiding assembly and symmetrically distributed is provided on the rear side of the left clamping plate.

[0013] The above-mentioned rear guiding holes may include a first guiding hole, a second guiding hole, and a third guiding hole. The first guiding hole is provided in the middle of the rear guide plate and is a vertically elongated oval. A plurality of second guiding holes are arranged at intervals from left to right to the left of the first guiding hole. The left part of each second guiding hole is inclined upward relative to the right part. A third guiding hole symmetrically arranged with the plurality of second guiding holes is provided to the right of the first guiding hole. The front guiding holes have the same structure as the rear guiding holes and are symmetrically arranged.

[0014] The structure of the utility model is reasonable and compact. According to the requirements of slicing animal visceral tissues, the distance between two adjacent blades is adjusted through an adjusting component, and then the animal visceral tissues are fixed on the base below the blades. Then, the tool rest is moved downward through a lifting component. When the tool rest moves downward, all the blades are driven to cut the visceral tissues, thereby completing the operation of slicing the animal visceral tissues. Through the adjusting component, the distances between all the blades can be adjusted at one time, so that the distances between two adjacent blades are the same, making the thickness of the slices more uniform, reducing the deviation of experimental results, and also avoiding the possible different qualities of slices produced by different operators, ensuring the consistency and repeatability of each slice. Setting multiple blades can improve the slicing efficiency and the experimental process. The settings of the lifting component and the adjusting component can also reduce the operation difficulty of the operator and the operation fatigue during long-term operation, and ensure the slicing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG Figure 1 1 is a front sectional structural schematic diagram of Embodiments 1 to 8 of the utility model.

[0016] FIG Figure 2 2 is a right sectional structural schematic diagram of Embodiments 1 to 8 of the utility model.

[0017] FIG Figure 3 3 is a front structural schematic diagram of the front guide plate in Embodiments 1 to 8 of the utility model Figure 1 .

[0018] FIG Figure 4 4 is a front structural schematic diagram of the front guide plate in Embodiments 1 to 8 of the utility model Figure 2 .

[0019] The codes in the drawings are respectively: 1 is the base, 2 is the tool bar, 3 is the front guide hole, 4 is the front guide plate, 5 is the sliding sleeve, 6 is the front rotating shaft, 7 is the front guide wheel, 8 is the blade, 9 is the fixing rod, 10 is the adjusting sleeve, 11 is the locking screw, 12 is the connecting plate, 13 is the left mounting plate, 14 is the right mounting plate, 15 is the rear guide plate, 16 is the rear rotating shaft, 17 is the rear guide wheel, 18 is the adjusting shaft, 19 is the first lifting lead screw, 20 is the second lifting lead screw, 21 is the left shaft seat, 22 is the right shaft seat, 23 is the first driving bevel gear, 24 is the second driving bevel gear, 25 is the first driven bevel gear, 26 is the second driven bevel gear, 27 is the left lead screw nut, 28 is the right lead screw nut, 29 is the handle, 30 is the left clamping plate, 31 is the right clamping plate, 32 is the rear guide assembly, 33 is the first slider, 34 is the second slider, 35 is the left fixing plate, 36 is the right fixing plate, 37 is the first guide hole, 38 is the second guide hole, 39 is the third guide hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical solution of the present utility model and the actual situation.

[0021] In the present utility model, for the convenience of description, the description of the relative position relationship of each component is carried out according to the layout mode of the attached Figure 1 drawing of the specification. For example, the position relationships such as front, rear, upper, lower, left, and right are determined according to the layout direction of the attached drawing of the specification.

[0022] The present utility model will be further described below in conjunction with the embodiments and the attached drawings:

[0023] Embodiment 1: As shown in Figure 1 , 2 , 3, and 4, the device for facilitating tissue sectioning includes a base 1, a tool rest, a tool bar 2, a blade 8, a lifting assembly, and an adjusting assembly. A tool rest is provided above the base 1. A front guide plate 4 is fixedly installed on the front side of the tool rest. A plurality of front guide holes 3 are arranged at intervals left and right on the front side of the front guide plate 4. The distance between every two adjacent front guide holes 3 decreases synchronously from top to bottom. Front guide wheels 7 are installed in the front guide holes 3. A tool bar 2 is installed on the upper side of the tool rest corresponding to the rear position of the front guide plate 4. A sliding sleeve 5 corresponding to each front guide hole 3 is sleeved outside the tool bar 2. A front rotating shaft 6 is fixedly installed on the outer side of the front part of each sliding sleeve 5. The front end of the front rotating shaft 6 is rotatably installed with the corresponding front guide wheel 7. A blade 8 is fixedly installed on the lower side of each sliding sleeve 5. An adjusting assembly capable of moving the tool bar 2 up and down is provided on the upper part of the tool rest. When the tool bar 2 moves downward, all the front guide wheels 7 move downward in the corresponding front guide holes 3 and all the blades 8 approach equidistantly. When the tool bar 2 moves upward, all the front guide wheels 7 move upward in the corresponding front guide holes 3 and all the blades 8 move away equidistantly. A lifting assembly capable of moving the tool rest up and down is provided on the upper side of the left part of the base 1.

[0024] The distance between every two adjacent front guide holes 3 decreases synchronously from top to bottom. In this way, when all the front guide wheels 7 are at the same height, the distance between two adjacent front guide wheels 7 is the same, and the distance between two adjacent blades 8 is also the same. During use, according to the requirements of animal visceral tissue slicing, the distance between two adjacent blades 8 is adjusted through the adjustment component. Then, the animal visceral tissue is fixed on the base 1 below the blade 8. Then, the knife rest is moved downward through the lifting component. When the knife rest moves downward, it drives all the blades 8 to cut the visceral tissue, thus completing the operation of slicing the animal visceral tissue. Through the adjustment component, the distance between all the blades 8 can be adjusted at one time, so that the distance between two adjacent blades 8 is the same, making the thickness of the slices more uniform, reducing the deviation of the experimental results, and also avoiding the possible different qualities of slices produced by different operators. It can ensure the consistency and repeatability of each slice. By setting multiple blades 8, the slicing efficiency can be improved, the experimental process can be accelerated, and the settings of the lifting component and the adjustment component can also reduce the operation difficulty of the operator and reduce the operation fatigue during long-term operation, and can ensure the slicing quality.

[0025] According to actual needs, the above device for facilitating tissue slicing can be further optimized and / or improved as follows:

[0026] Embodiment 2: As an optimization of the above embodiment, as shown in the attached Figure 1 、 2 figure, the lifting component includes a fixing rod 9, an adjusting sleeve 10 and a locking screw 11. The fixing rod 9 is fixedly installed on the upper side of the left part of the base 1. The adjusting sleeve 10 is sleeved outside the fixing rod 9. A radially penetrating connecting screw hole is provided on the outer side of the left part of the adjusting sleeve 10, and a locking screw 11 with an end abutting against the fixing rod 9 is screwed in the connecting screw hole. The left side of the knife rest is fixedly installed on the outer side of the right part of the adjusting sleeve 10.

[0027] According to requirements, a cover plate is fixed at the upper end of the adjusting sleeve 10, and a compression spring is installed between the lower side of the cover plate and the upper end of the fixing rod 9, so that it is more labor-saving when the knife rest moves upward. During use, this can fix the knife rest during each slicing operation. By setting the locking screw, it can also avoid additional damage to the tissue when the adjusting sleeve 10 drives the blade 8 to move downward when the locking screw 11 is not tightened, reduce the operation difficulty of the operator, improve the working efficiency of tissue slicing, and can quickly and efficiently complete the slicing work, save scientific research time, and accelerate the research process.

[0028] Embodiment 3: As an optimization of the above embodiment, as shown in the attached Figure 1 、 2As shown in FIGS. 3 and 4, the tool rest includes a connecting plate 12, a left mounting plate 13 and a right mounting plate 14. The connecting plate 12 is T-shaped. The left side of the connecting plate 12 is fixedly installed on the outer side of the right part of the adjusting sleeve 10. The rear side of the left end of the front guide plate 4 is fixedly installed on the front side of the right part of the connecting plate 12. A rear guide plate 15 having the same structure as the front guide plate 4 is fixedly installed on the rear side of the connecting plate 12. Rear guide holes corresponding to the front guide holes 3 one by one are provided on the rear side of the rear guide plate 15. A rear guide wheel 17 having the same structure as the front guide wheel 7 and symmetrically arranged is installed in each rear guide hole. A rear rotating shaft 16 having the same structure as the front rotating shaft 6 and symmetrically distributed is installed between the front end of each rear guide wheel 17 and the rear part of the corresponding sliding sleeve 5. The left mounting plate 13 and the right mounting plate 14 are fixedly installed at left and right intervals between the lower parts of the front guide plate 4 and the rear guide plate 15.

[0029] During the use process, through such a setting, it is convenient for the connection between the adjusting sleeve 10 and the blade 8, and it can also improve the stability of the blade 8 when moving up and down with the adjusting sleeve 10, avoid the left and right shaking of the blade 8 when moving up and down, ensure the slicing quality, and then ensure the accuracy of subsequent observation and analysis data, can process tissues more precisely, reduce unnecessary damage to visceral tissues, ensure the original shape and characteristics of the tissues, and make the research conclusions more persuasive.

[0030] Embodiment 4: As an optimization of the above embodiment, as shown in the attached Figure 1 , 2 FIGS., the adjusting assembly includes an adjusting shaft 18, a first lifting lead screw 19 and a second lifting lead screw 20. A left shaft seat 21 and a right shaft seat 22 are respectively fixedly installed on the upper sides of the left part and the right part of the front guide plate 4. The outer side of the left part of the adjusting shaft 18 is rotatably installed in the left shaft seat 21, and the outer side of the right part of the adjusting shaft 18 is rotatably installed in the right shaft seat 22. A first driving bevel gear 23 and a second driving bevel gear 24 are fixedly installed at left and right intervals on the outer side of the adjusting shaft 18 corresponding to the positions between the left shaft seat 21 and the right shaft seat 22. A first lifting lead screw 19 is rotatably installed on the upper side of the left mounting plate 13. A first driven bevel gear 25 meshing with the first driving bevel gear 23 is fixedly installed at the upper end of the first lifting lead screw 19. A second lifting lead screw 20 is rotatably installed on the upper side of the right mounting plate 14. A second driven bevel gear 26 meshing with the second driving bevel gear 24 is fixedly installed at the upper end of the second lifting lead screw 20. A left lead screw nut 27 fixedly installed at the left end of the tool bar 2 is screwed on the outer side of the first lifting lead screw 19, and a right lead screw nut 28 fixedly installed at the right end of the tool bar 2 is screwed on the outer side of the second lifting lead screw 20.

[0031] During use, when the adjusting shaft 18 is rotated, the first driving bevel gear 23 and the second driving bevel gear 24 respectively drive the first driven bevel gear 25 and the second driven bevel gear 26 to rotate. When the first driven bevel gear 25 and the second driven bevel gear 26 rotate, they respectively drive the first lifting lead screw 19 and the second lifting lead screw 20 to rotate. When the first lifting lead screw 19 and the second lifting lead screw 20 rotate, they respectively drive the left lead screw nut 27 and the right lead screw nut 28 to move up and down. According to requirements, the first driving bevel gear 23 and the second driving bevel gear 24 have the same structure, the installation directions of the first driving bevel gear 23 and the second driving bevel gear 24 are the same, the first driven bevel gear 25 and the second driven bevel gear 26 have the same structure, the installation directions of the first driven bevel gear 25 and the second driven bevel gear 26 are the same, the first lifting lead screw 19 and the second lifting lead screw 20 have the same structure, and the left lead screw nut 27 and the right lead screw nut 28 have the same structure. In this way, when the adjusting shaft 18 rotates, the left lead screw nut 27 and the right lead screw nut 28 move downward synchronously, thereby driving the sliding sleeve 5 to move downward. When the sliding sleeve 5 moves downward, the front rotating shaft 6 drives the front guide wheel 7 to move downward along the front guide hole 3, and at the same time, the rear rotating shaft 16 drives the rear guide wheel 17 to move downward along the rear guide hole. When all the front guide wheels 7 move downward in the corresponding front guide holes 3, all the sliding sleeves 5 can be equidistantly approximated, so that the distance between two adjacent blades 8 can be adjusted, which helps to achieve a stable and repeatable slicing effect, ensures the reliability and comparability of experimental results, makes the slicing operation easier to master, reduces the requirements for the technical level of operators, enables more researchers to smoothly conduct relevant experiments, and at the same time facilitates the establishment of standard processes and specifications for slicing operations, and promotes exchanges and cooperation between different laboratories.

[0032] Embodiment Five: As an optimization of the above embodiment, as shown in the attached Figure 1 figure, a handle 29 is fixedly installed on the outer side of the right end of the adjusting shaft 18 corresponding to the right side position of the right shaft seat 22. The rear sides of the left shaft seat 21 and the right shaft seat 22 are respectively fixedly installed together with the corresponding upper side positions of the rear guide plate 15.

[0033] Installing the handle 29 can make it more labor-saving and convenient to rotate the adjusting shaft 18, so as to quickly adjust the distance between the blades 8, make the slicing operation easier to master, and reduce the requirements for the technical level of operators.

[0034] Embodiment Six: As an optimization of the above embodiment, as shown in the attached Figure 1 、 2 figure, a left clamping plate 30 and a right clamping plate 31 are slidably installed at intervals on the upper side of the base 1 corresponding to the position between the front guide plate 4 and the rear guide plate 15.

[0035] During use, by setting the left splint 30 and the right splint 31, the tissue to be sectioned can be limited, preventing the tissue from moving during the sectioning process, ensuring the section quality, and thus ensuring the accuracy of subsequent observation and analysis data, making the research conclusions more persuasive.

[0036] Embodiment Seven: As an optimization of the above embodiment, as shown in the appendix Figure 1 , 2 As shown, a front guiding component is provided on the front side of the left splint 30. The front guiding component includes a first front slider, a second front slider, a left fixing plate 35, and a right fixing plate 36. On the upper side of the front part of the base 1 corresponding to the front position of the left splint 30, there is a T-shaped front sliding groove that opens to the right and is narrower at the top and wider at the bottom. The first front slider and the second front slider are slidably installed at intervals on the left and right inside the front sliding groove. A left fixing plate 35 is fixedly installed between the upper side of the first front slider and the lower front side of the left splint 30, and a right fixing plate 36 is fixedly installed between the upper side of the second front slider and the lower front side of the right splint 31. A rear guiding component 32 with the same structure as the front guiding component and symmetrically distributed is provided on the rear side of the left splint 30.

[0037] During use, through such a setting, the left splint 30 and the right splint 31 can be better limited, preventing the left splint 30 and the right splint 31 from separating from each other due to the extrusion of the blade 8 on the tissue during the sectioning process. A tension spring can be installed between the right side of the first front slider and the left side of the second front slider as needed, or the weights of the first front slider and the second front slider can be increased. In this way, it can better avoid the left splint 30 and the right splint 31 from separating from each other during the sectioning process, can process the tissue more precisely, reduce unnecessary damage to visceral tissue, and also facilitate the establishment of standard procedures and specifications for sectioning operations, promoting communication and cooperation between different laboratories.

[0038] Embodiment Eight: As an optimization of the above embodiment, as shown in the appendix Figure 1 , 2 , Figures 3 and 4, the rear guiding holes include a first guiding hole 37, a second guiding hole 38, and a third guiding hole 39. The first guiding hole 37 is provided in the middle of the rear guiding plate 15 and is a vertically elongated oval. A plurality of second guiding holes 38 are arranged at intervals from left to right to the left of the first guiding hole 37. The left part of each second guiding hole 38 is inclined upward relative to the right part. A third guiding hole 39 symmetrically arranged with the plurality of second guiding holes 38 is provided to the right of the first guiding hole 37. The front guiding hole 3 has the same structure as the rear guiding hole and is symmetrically arranged.

[0039] According to requirements, a scale marking layer is provided on the lower front side of the lower part of the front guide plate 4 below the front guide hole 3 and on the lower front side of the lower part of the rear guide plate 15 below the rear guide hole. The zero scale line is aligned with the center line of the first guide hole 37, and the scale marks on the left and right sides of the zero scale line increase in sequence. When the front guide wheels 7 are located at the upper ends of the first guide hole 37, the second guide hole 38, and the third guide hole 39, the distance between two adjacent front guide wheels 7 is the same. During the downward movement of the front guide wheels 7, the second guide hole 38 causes the left front guide wheel 7 to move synchronously to the right and approach the middle front guide wheel 7, and at the same time, the third guide hole 39 causes the right front guide wheel 7 to move synchronously to the left and approach the middle front guide wheel 7. In this way, turning the handwheel drives the adjustment shaft 18 to rotate, so that the front guide wheels 7 move downward, which can synchronously reduce the distance between two adjacent blades 8, facilitating the rapid adjustment of the blade 8 spacing, enabling the slicing work to be completed quickly and efficiently, making the slicing operation easier to master, reducing the requirements for the technical level of operators, enabling more researchers to smoothly carry out relevant experiments, and also facilitating the establishment of standard processes and specifications for slicing operations, promoting communication and cooperation between different laboratories.

[0040] The above technical features constitute an embodiment of the present utility model, which has strong adaptability and implementation effects. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A device for facilitating tissue sectioning, characterized in that The tool holder comprises a base, a tool holder, a tool rod, a blade, a lifting assembly and an adjusting assembly. A tool holder is arranged above the base, and a front guide plate is fixedly installed on the front side of the tool holder. A plurality of front guide holes are arranged at intervals on the left and right sides of the front side of the front guide plate, and the distance between each two adjacent front guide holes decreases synchronously from top to bottom. A front guide wheel is installed in the front guide hole, and a tool holder is installed on the upper side of the tool holder corresponding to the rear position of the front guide plate. A sliding sleeve corresponding to the front guide hole is provided on the outer side of the tool holder, and a front rotating shaft is fixedly installed on the outer side of the front part of each sliding sleeve. The front end of the front rotating shaft is rotatably installed with the corresponding front guide wheel, and a blade is fixedly installed on the lower side of each sliding sleeve. An adjusting assembly capable of moving the tool holder up and down is provided on the upper part of the tool holder. When the tool holder moves downward, all the front guide wheels move downward in the corresponding front guide holes and all the blades are equidistantly close to each other. When the tool holder moves upward, all the front guide wheels move upward in the corresponding front guide holes and all the blades are equidistantly away from each other. A lifting assembly capable of moving the tool holder up and down is provided on the upper left side of the base.

2. The device for facilitating tissue sectioning according to claim 1, characterized in that The lifting assembly includes a fixed rod, an adjusting sleeve and a locking screw. The fixed rod is fixedly installed on the upper left side of the base, and the adjusting sleeve is sleeved on the outer side of the fixed rod. A radially penetrating connecting screw hole is provided on the outer side of the left side of the adjusting sleeve. A locking screw with an end that abuts against the fixed rod is threaded in the connecting screw hole. The left side of the tool holder is fixedly installed together with the outer side of the right side of the adjusting sleeve.

3. The device for facilitating tissue sectioning according to claim 2, characterized in that The tool holder includes a connecting plate, a left mounting plate and a right mounting plate. The connecting plate is T-shaped. The left side of the connecting plate is fixedly mounted to the outer side of the right part of the adjusting sleeve. The rear side of the left end of the front guide plate is fixedly mounted to the front side of the right part of the connecting plate. A rear guide plate with the same structure as the front guide plate is fixedly mounted on the rear side of the connecting plate. Rear guide holes corresponding to the front guide holes are provided on the rear side of the rear guide plate. A rear guide wheel with the same structure as the front guide wheel and symmetrically arranged is installed in each rear guide hole. A rear shaft with the same structure as the front shaft and symmetrically distributed is installed between the front end of each rear guide wheel and the rear part of the corresponding sliding sleeve. A left mounting plate and a right mounting plate are fixedly mounted at intervals on the left and right sides between the lower part of the front guide plate and the lower part of the rear guide plate.

4. The device for facilitating tissue sectioning according to claim 3, characterized in that The adjusting assembly includes an adjusting shaft, a first lifting screw rod and a second lifting screw rod, and the left shaft seat and the right shaft seat are fixedly installed on the upper left and right sides of the front guide plate respectively, the outer side of the left part of the adjusting shaft is rotatably installed in the left shaft seat, and the outer side of the right part of the adjusting shaft is rotatably installed in the right shaft seat, and the first active bevel gear and the second active bevel gear are fixedly installed at intervals on the left and right sides of the outer side of the adjusting shaft corresponding to the position between the left and right shaft seats, the first lifting screw rod is rotatably installed on the upper side of the left mounting plate, the first driven bevel gear that meshes with the first active bevel gear is fixedly installed on the upper end of the first lifting screw rod, and the second lifting screw rod is rotatably installed on the upper side of the right mounting plate, and the second driven bevel gear that meshes with the second active bevel gear is fixedly installed on the upper end of the second lifting screw rod, the left screw rod nut fixedly installed with the left end of the tool rod is screwed on the outer side of the first lifting screw rod, and the right screw rod nut fixedly installed with the right end of the tool rod is screwed on the outer side of the second lifting screw rod.

5. The device for facilitating tissue sectioning according to claim 4, characterized in that A handle is fixedly installed on the outer side of the right end of the adjustment shaft corresponding to the right position of the right axle seat, and the rear sides of the left axle seat and the right axle seat are fixedly installed together with the corresponding positions on the upper side of the rear guide plate respectively.

6. The device for facilitating tissue sectioning according to claim 3, 4 or 5, characterized in that A left clamping plate and a right clamping plate are slidably installed at intervals on the upper side of the base corresponding to the position between the front guide plate and the rear guide plate.

7. The device for facilitating tissue sectioning according to claim 6, characterized in that A front guide assembly is provided on the front side of the left clamping plate, and the front guide assembly includes a first front slider, a second front slider, a left fixed plate and a right fixed plate. A T-shaped front slide groove opening to the right and narrow at the top and wide at the bottom is provided on the upper front side of the base corresponding to the front position of the left clamping plate. The first front slider and the second front slider are slidably installed on the inner side of the front slide groove at intervals on the left and right sides. The left fixed plate is fixedly installed between the upper side of the first front slider and the front side of the lower part of the left clamping plate, and the right fixed plate is fixedly installed between the upper side of the second front slider and the front side of the lower part of the right clamping plate. A rear guide assembly having the same structure as the front guide assembly and symmetrically distributed is provided on the rear side of the left clamping plate.

8. The device for facilitating tissue sectioning according to claim 1 or 2 or 3 or 4 or 5 or 7, characterized in that The rear guide hole includes a first guide hole, a second guide hole and a third guide hole. The first guide hole is arranged in the middle of the rear guide plate and is a vertical oblong. A plurality of second guide holes are arranged at intervals from left to right on the left side of the first guide hole. The left part of each second guide hole is inclined upward relative to the right part. A third guide hole is arranged on the right side of the first guide hole and is symmetrically arranged with the plurality of second guide holes. The front guide hole has the same structure as the rear guide hole and is symmetrically arranged.

9. The device for facilitating tissue sectioning according to claim 6, characterized in that The rear guide hole includes a first guide hole, a second guide hole and a third guide hole. The first guide hole is arranged in the middle of the rear guide plate and is a vertical oblong. A plurality of second guide holes are arranged at intervals from left to right on the left side of the first guide hole. The left part of each second guide hole is inclined upward relative to the right part. A third guide hole is arranged on the right side of the first guide hole and is symmetrically arranged with the plurality of second guide holes. The front guide hole has the same structure as the rear guide hole and is symmetrically arranged.

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