A medical sectioning device

Abstract

This utility model discloses a medical slicing device, including a housing. A groove is formed on the front side of the housing, and an adjustable cutter is located inside the groove. An installation port is formed on the front side of the groove, and a sample tube is located inside the installation port. The device also includes a push-out mechanism. The push-out mechanism includes a guide rod, a support plate, a push rod, a lead screw, and a bellows. A guide rod is located between the front and rear inner walls of the housing. A support plate is slidably connected to the outside of the guide rod. A push rod is located on the front side of the support plate. A push block is fixedly connected to the front end of the push rod, and the outside of the push block is slidably connected to the inner wall of the sample tube. A lead screw is rotatably connected between the front and rear inner walls of the housing. The right side of the support plate is threadedly connected to the lead screw. This medical slicing device can quickly and stably adjust the position of the paraffin block, enabling the slicing blade to cut the paraffin block with a constant thickness, ensuring consistent thickness for each slice, improving slice quality, and facilitating subsequent pathological observation and diagnosis.

Description

Technical Field

[0001] This utility model relates to the technical field of medical slicing equipment, specifically a medical slicing device. Background Technology

[0002] In the medical field, accurate diagnosis is the cornerstone of effective disease treatment, and pathological diagnosis, as the "gold standard" of disease diagnosis, plays a crucial role in this process. Pathological diagnosis can deeply analyze the essence of a disease, whether determining whether a tumor is benign or malignant, or identifying the type of pathogen causing an infection. It provides decisive evidence for the formulation of subsequent treatment plans. Medical microtome is a precision instrument designed specifically for the needs of pathological diagnosis. It can accurately cut tissue blocks into slices only a few micrometers thick. Its cutting precision is extremely high, ensuring that each slice is of uniform thickness. The thin slices produced in this way allow light to pass through easily, enabling pathologists to clearly observe the morphology, arrangement, and subtle structural changes of cells under a microscope, thereby accurately determining the condition of the lesion.

[0003] Existing medical slicing devices involve placing the embedded tissue wax block on the sample holder of the microtome, adjusting the position of the sample holder to position the wax block in a suitable slicing position, manually adjusting the thickness adjustment device of the microtome according to the required slice thickness, installing the microtome blade to ensure that the blade is securely installed and sharp, and then the microtome's transmission device will slowly bring the tissue wax block on the sample holder closer to the microtome blade to slice the diseased tissue wax block.

[0004] Existing medical slicing devices require stopping the microtome and manually turning the adjustment knob to frequently adjust the position of the paraffin block on the sample holder in order to ensure uniform slice thickness. This necessitates multiple starts and stops of the microtome, wasting a significant amount of time on equipment startup, shutdown, and waiting, resulting in low overall slicing efficiency. Failure to adjust the paraffin block position in a timely manner also affects slice quality and leads to sample material waste. Therefore, we propose a new medical slicing device. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a medical slicing device that can quickly and stably adjust the position of the paraffin block, enabling the slicing blade to cut the paraffin block with a constant thickness, ensuring that each slice has a consistent thickness, improving the quality of the slices, and facilitating subsequent pathological observation and diagnosis. This can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a medical slicing device, including a housing, a groove on the front side of the housing, an adjustable cutter inside the groove, an installation port on the front side of the groove, a sample tube inside the installation port, and a push-out mechanism;

[0007] The ejection mechanism includes a guide rod, a support plate, a push rod, a lead screw, and a bellows. A guide rod is located between the front and rear inner walls of the chassis. A support plate is slidably connected to the outside of the guide rod. A push rod is located on the front side of the support plate. A push block is fixedly connected to the front end of the push rod. The outside of the push block is slidably connected to the inner wall of the sample tube. A lead screw is rotatably connected between the front and rear inner walls of the chassis. The right side of the support plate is threadedly connected to the lead screw. Bellows are located between the front and rear sides of the support plate and the front and rear inner walls of the chassis. The lead screw is located inside the bellows. This mechanism allows for rapid and stable adjustment of the wax block position, enabling the microtome to cut the wax block with a constant thickness, ensuring consistent thickness of each section, improving section quality, and facilitating subsequent pathological observation and diagnosis.

[0008] Furthermore, a microcontroller is provided on the front side of the chassis. The input terminal of the microcontroller is electrically connected to an external power source to provide electrical connections for various electrical components.

[0009] Furthermore, the ejection mechanism also includes a rotating shaft, a sector gear, and a gear. The rotating shaft is rotatably connected to the rear inner wall of the housing. The sector gear is fixedly sleeved on the outside of the rotating shaft, and the gear is fixedly sleeved on the outside of the lead screw. The sector gear and the gear are installed together to achieve stable transmission.

[0010] Furthermore, the ejection mechanism also includes a motor, which is located on the rear side of the chassis. The front end of the output shaft of the motor is fixedly connected to the rear end of the rotating shaft, and the input end of the motor is electrically connected to the output end of the microcontroller to provide ejection drive.

[0011] Furthermore, the rear inner wall of the groove is connected to a sample slot by bolts, and the rear side of the sample slot is provided with a clearance hole corresponding to the sample tube to fix the sample tube.

[0012] Furthermore, the inner walls of the groove are provided with sliding grooves, and a mounting bracket is slidably connected between the two sliding grooves. A cutter is connected to the front side of the mounting bracket by a locking bolt. A rotating column is rotatably connected to the inner wall of the rear side of the groove. A rotating rod is fixedly sleeved on the outside of the rotating column. An adjusting rod is rotatably connected to the end of the rotating rod away from the rotating column. The bottom end of the adjusting rod is rotatably connected to the rear side of the mounting bracket to achieve slicing.

[0013] Furthermore, a second motor is provided on the front inner wall of the chassis. The front end of the output shaft of the second motor is fixedly connected to the rear end of the rotating column, and the input end of the second motor is electrically connected to the output end of the microcontroller to provide slice drive.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This medical slicing device has the following advantages:

[0015] The motor drives the rotating shaft, which in turn drives the sector gear inside the machine to rotate. The meshing gear drives the lead screw to rotate, causing the threaded support plate to slide under the limiting support of the guide rod. This pushes the wax block inside the sample tube forward, achieving stable pushing of the tissue wax block inside the sample tube. This reduces the time and effort required for manual operation, and enables the sample to be pushed out for sectioning quickly and continuously, significantly improving the efficiency of sectioning, saving time and labor costs while ensuring the quality of the section. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is a cross-sectional view of the structure of this utility model from the right side.

[0020] In the diagram: 1. Chassis, 2. Cutter, 3. Groove, 4. Sample tube, 5. Microcontroller, 6. Push mechanism, 61. Guide rod, 62. Support plate, 63. Push rod, 64. Lead screw, 65. Corrugated pipe, 66. Rotary shaft, 67. Sector gear, 68. Gear, 69. Motor 1, 7. Sample slot, 8. Slide groove, 9. Mounting bracket, 10. Rotary column, 11. Rotary rod, 12. Adjusting rod, 13. Motor 2. 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 1-4This embodiment provides a technical solution: a medical slicing device includes a housing 1, a groove 3 on the front side of the housing 1, an adjustable cutter 2 inside the groove 3, a mounting port on the front side of the groove 3, a sample tube 4 inside the mounting port, and an ejection mechanism 6. A microcontroller 5 is located on the front side of the housing 1, the input terminal of the microcontroller 5 is electrically connected to an external power source, a sample groove 7 is bolted to the rear inner wall of the groove 3, a clearance hole corresponding to the sample tube 4 is provided on the rear side of the sample groove 7, sliding grooves 8 are provided on the left and right inner walls of the groove 3, and a mounting bracket 9 is slidably connected between the two sliding grooves 8. A cutter 2 is connected to the front side of the frame 9 via locking bolts. A rotating column 10 is rotatably connected to the rear inner wall of the groove 3. A rotating rod 11 is fixedly sleeved on the outside of the rotating column 10. An adjusting rod 12 is rotatably connected to the end of the rotating rod 11 away from the rotating column 10. The bottom end of the adjusting rod 12 is rotatably connected to the rear side of the mounting frame 9. A second motor 13 is provided on the front inner wall of the chassis 1. The front end of the output shaft of the second motor 13 is fixedly connected to the rear end of the rotating column 10. The input end of the second motor 13 is electrically connected to the output end of the microcontroller 5. When it is necessary to observe the pathological tissue during pathological examination, the chassis 1 is first placed in the designated position, and the section containing the pathological tissue is placed on the machine. The paraffin block of the tissue is placed inside sample tube 4, and agarose gel is poured into it to solidify and fix the paraffin block of the diseased tissue inside sample tube 4. Then, sample tube 4 is inserted into the mounting port, so that the limiting piece on the outside of sample tube 4 is pressed tightly against the rear wall of groove 3. Then, sample groove 7 is aligned with the corresponding mounting hole so that sample tube 4 passes through the clearance hole on the rear side of sample groove 7. The bolt is tightened, and the sample tube 4 is fixed at the same time as the sample groove 7 (the diameter of the limiting piece on the outside of sample tube 4 is larger than the diameter of the clearance hole and the mounting port). Finally, 1×PBS buffer is poured into the sample groove 7, and the microcontroller 5 controls the process. When the motor 13 is turned on, the output shaft will drive the rotating column 10 to start rotating. The rotating column 10 will drive the adjusting rod 12 to move through the rotating rod 11. The adjusting rod 12 will pull the mounting bracket 9 to move up and down inside the slide 8, thereby causing the cutter 2 to slide up and down to slice the wax block with diseased tissue inside the sample tube 4. The sliced ​​wax block will automatically fall into the sample tank 7. After slicing, it is connected to the discharge port on the right side of the sample tank 7 through the delivery tube to collect the 1×PBS buffer inside for the next use. After it is completely drained, the sample tank 7 and sample tube 4 can be disassembled and cleaned.

[0023] The ejection mechanism 6 includes a guide rod 61, a support plate 62, a push rod 63, a lead screw 64, and a bellows 65. The guide rod 61 is located between the front and rear inner walls of the housing 1. The support plate 62 is slidably connected to the outside of the guide rod 61. The push rod 63 is located on the front side of the support plate 62. A push block is fixedly connected to the front end of the push rod 63. The outside of the push block is slidably connected to the inner wall of the sample tube 4. The lead screw 64 is rotatably connected between the front and rear inner walls of the housing 1. The right side of the support plate 62 is threadedly connected to the lead screw 64. Bellows 65 are provided between the front and rear sides and the front and rear inner walls of the casing 1. The lead screw 64 is located inside the bellows 65. The ejection mechanism 6 also includes a rotating shaft 66, a sector gear 67, and a gear 68. The rotating shaft 66 is rotatably connected to the rear inner wall of the casing 1. The sector gear 67 is fixedly sleeved on the outside of the rotating shaft 66. The gear 68 is fixedly sleeved on the outside of the lead screw 64. The sector gear 67 and the gear 68 are fitted together. The ejection mechanism 6 also includes a motor 69, which is located on the rear side of the casing 1. The front end of the output shaft of motor 69 is fixedly connected to the rear end of rotating shaft 66. The input end of motor 69 is electrically connected to the output end of microcontroller 5. After the exposed wax block on the outside of sample tube 4 is removed, motor 69 starts to run through the control of microcontroller 5. The output shaft drives rotating shaft 66 to start running. Rotation of shaft 66 drives sector gear 67 to rotate inside the housing 1. When the teeth of sector gear 67 mesh with gear 68, gear 68 drives lead screw 64 to rotate, causing the threaded support plate to rotate. Under the limiting support of the guide rod 61, the push rod 63 slides, causing the push block to push the wax block inside the sample tube 4 forward. During the movement of the support plate 62, the bellows 65 on the rear side of the support plate 62 gradually extends and elongates as the support plate 62 moves. At the same time, the bellows 65 on the front side of the support plate 62 gradually compresses and contracts accordingly. The two cooperate with each other to always keep the lead screw 64 inside the bellows 65, preventing dust from getting into the thread groove of the lead screw 64 and ensuring the transmission accuracy of the lead screw 64.

[0024] The working principle of the medical slide device provided by this utility model is as follows: When it is necessary to slide and observe the diseased tissue during pathological examination, firstly, place the machine box 1 in the designated position, put the wax block containing the diseased tissue into the sample tube 4, pour agarose gel into it, and let it solidify to fix the diseased tissue wax block inside the sample tube 4. Then, insert the sample tube 4 into the installation port, so that the limiting piece on the outside of the sample tube 4 is pressed tightly against the rear side wall of the groove 3. Then, align the sample groove 7 with the corresponding installation hole so that the sample tube 4 passes through the clearance hole on the rear side of the sample groove 7, and tighten the bolt. While fixing the sample well 7, the sample tube 4 is also fixed in a limiting position (the diameter of the limiting piece outside the sample tube 4 is larger than the diameter of the clearance hole and the mounting opening). Then, 1×PBS buffer is poured into the sample well 7. Under the control of the microcontroller 5, the motor 13 starts to run, and the output shaft drives the rotating column 10 to start running. The rotating column 10 drives the adjusting rod 12 to move through the rotating rod 11. The adjusting rod 12 pulls the mounting bracket 9 up and down inside the slide 8, thereby causing the cutter 2 to slide up and down to slice the paraffin block with diseased tissue inside the sample tube 4. The sliced ​​paraffin... The wax block will automatically fall into the sample tank 7. After the exposed wax block on the outside of the sample tube 4 is removed, the motor 69 starts to run under the control of the microcontroller 5. The output shaft will drive the rotating shaft 66 to start running. The rotation of 66 will drive the sector gear 67 to rotate inside the housing 1. When the teeth of the sector gear 67 mesh with the gear 68, the gear 68 will drive the lead screw 64 to rotate, so that the threaded support plate 62 drives the push rod 63 to slide under the limiting support of the guide rod 61, so that the push block pushes the wax block inside the sample tube 4 forward. During the movement of the support plate 62, the support... As the support plate 62 moves, the corrugated tube 65 on the rear side of the plate 62 gradually extends and elongates. At the same time, the corrugated tube 65 on the front side of the support plate 62 gradually compresses and contracts accordingly. The two work together to keep the lead screw 64 inside the corrugated tube 65, preventing dust from getting into the threaded groove of the lead screw 64 and ensuring the transmission accuracy of the lead screw 64. After the slicing is completed, it is connected to the discharge port on the right side of the sample tank 7 through the delivery tube to collect the 1×PBS buffer inside for the next use. After it is completely drained, the sample tank 7 and sample tube 4 can be removed and cleaned.

[0025] It is worth noting that the microcontroller 5 disclosed in the above embodiments can be SAMS70, and both motor 69 and motor 13 can be YS8024. The microcontroller 5 controls the operation of motor 69 and motor 13 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A medical sectioning device comprising a cabinet (1), a recess (3) is formed in the front side of the cabinet (1), an adjustable cutter (2) is arranged in the recess (3), a mounting opening is formed in the front side of the recess (3), and a sample tube (4) is arranged in the mounting opening, characterized in that: It also includes the launching agency (6); The ejection mechanism (6) includes a guide rod (61), a support plate (62), a push rod (63), a lead screw (64), and a bellows (65). The guide rod (61) is provided between the front and rear inner walls of the housing (1). The support plate (62) is slidably connected to the outside of the guide rod (61). The front side of the support plate (62) is provided with a push rod (63). The front end of the push rod (63) is fixedly connected with a push block. The outside of the push block is slidably connected to the inner wall of the sample tube (4). The lead screw (64) is rotatably connected between the front and rear inner walls of the housing (1). The middle right side of the support plate (62) is threadedly connected to the lead screw (64). The front and rear sides of the support plate (62) are provided with bellows (65) between the front and rear inner walls of the housing (1). The lead screw (64) is located inside the bellows (65).

2. The medical slicing device according to claim 1, characterized in that: The front side of the chassis (1) is equipped with a microcontroller (5), and the input terminal of the microcontroller (5) is electrically connected to an external power supply.

3. A medical slicing device according to claim 2, characterized in that: The ejection mechanism (6) also includes a rotating shaft (66), a sector gear (67) and a gear (68). The rotating shaft (66) is rotatably connected to the inner rear wall of the housing (1). The sector gear (67) is fixedly sleeved on the outside of the rotating shaft (66), and the gear (68) is fixedly sleeved on the outside of the lead screw (64). The sector gear (67) and the gear (68) are installed together.

4. A medical slicing device according to claim 3, characterized in that: The ejection mechanism (6) also includes a motor (69), which is located on the rear side of the chassis (1). The front end of the output shaft of the motor (69) is fixedly connected to the rear end of the rotating shaft (66), and the input end of the motor (69) is electrically connected to the output end of the microcontroller (5).

5. A medical slicing device according to claim 1, characterized in that: The rear inner wall of the groove (3) is connected to the sample groove (7) by bolts, and the rear side of the sample groove (7) is provided with a clearance hole corresponding to the sample tube (4).

6. A medical slicing device according to claim 2, characterized in that: The inner walls of the groove (3) are provided with sliding grooves (8), and a mounting bracket (9) is slidably connected between the two sliding grooves (8). A cutter (2) is connected to the front side of the mounting bracket (9) by a locking bolt. A rotating column (10) is rotatably connected to the inner wall of the rear side of the groove (3). A rotating rod (11) is fixedly sleeved on the outside of the rotating column (10). An adjusting rod (12) is rotatably connected to the end of the rotating rod (11) away from the rotating column (10). The bottom end of the adjusting rod (12) is rotatably connected to the rear side of the mounting bracket (9).

7. A medical slicing device according to claim 6, characterized in that: The front inner wall of the chassis (1) is provided with motor 2 (13). The front end of the output shaft of motor 2 (13) is fixedly connected to the rear end of the rotating column (10). The input end of motor 2 (13) is electrically connected to the output end of the microcontroller (5).

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