A pathological tissue rapid dehydration device based on magnetic force dynamic stirring and a method thereof

Abstract

The application provides a pathological tissue rapid dehydration device based on magnetic dynamic stirring and a method thereof, can greatly shorten the whole process time of tissue dehydration under the premise of zero mechanical damage and zero pollution, and is suitable for the needs of clinical rapid pathological diagnosis; the device comprises a rack, a processing box mounted on the rack, a magnetic stirring driving unit, a reagent switching liquid path unit and a main control unit; the processing box is a fully sealed, corrosion-resistant and pressure-resistant structure, and provides a sealed processing cavity for tissue dehydration processing; the processing box is provided with reagent cylinders for containing various pathological processing reagents; the magnetic stirring driving unit is matched and mounted with the reagent cylinders, and is used for dynamically stirring the pathological processing reagents in a magnetic non-contact driving mode; the reagent switching liquid path unit is in communication with the inside of the reagent cylinders, and is used for completing the switching, filling and draining of various pathological processing reagents; and the main control unit is electrically connected with the magnetic stirring driving unit and the reagent switching liquid path unit, and is used for overall controlling the cooperative work of the units.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a rapid dehydration device and method for pathological tissues based on magnetic dynamic stirring. Background Technology

[0002] Dehydration of pathological tissues is a core pre-procedure step in paraffin section preparation, directly determining the integrity of tissue sections, the clarity of staining, and the accuracy of pathological diagnosis. Currently, mainstream fully automated pathology dehydration machines in clinical practice rely on the natural diffusion and penetration of reagents to complete the gradient dehydration, clearing, and paraffin impregnation processes. This has a fatal shortcoming in efficiency, with a conventional processing cycle of 16-22 hours, allowing only overnight processing. This cannot meet the time-sensitive requirements of intraoperative frozen biopsy, emergency pathology, and rapid outpatient diagnosis. Specifically, the defects of existing dehydration equipment are concentrated in the following two aspects: First, in a static reagent environment, a concentration boundary layer easily forms on the tissue surface, preventing the dehydration and clearing solutions from continuously and fully exchanging with the tissue micropores. Dense fibrous tissue, adipose tissue, and small puncture specimens generally suffer from uneven dehydration, residual water, and incomplete clearing, which can easily lead to vacuoles in the sections and tissue shrinkage and deformation. Second, traditional mechanical stirring structures have drawbacks. Traditional impeller stirring and oscillating stirring are prone to generating mechanical impact forces, which can cause small biopsy tissues to fall off and break. In addition, the stirring shaft runs through the cavity, making sealing difficult, easily causing reagent leakage, cross-contamination, and exhaust gas leakage, resulting in high maintenance costs and short service life. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides a rapid dehydration device and method for pathological tissues based on magnetic dynamic stirring, which can significantly shorten the entire dehydration process time with zero mechanical damage and zero pollution, thus meeting the needs of rapid clinical pathological diagnosis.

[0004] The present invention adopts the following technical solution: a rapid dehydration device for pathological tissue based on magnetic dynamic stirring, comprising a frame and a processing box, a magnetic stirring drive unit, a reagent switching liquid circuit unit, and a main control unit mounted on the frame; the processing box is a fully sealed, corrosion-resistant, and pressure-resistant structure, providing a sealed processing cavity for tissue dehydration; the processing box is equipped with a reagent cylinder for holding various pathological processing reagents; The magnetic stirring drive unit is matched and installed with the reagent cylinder, and is used to dynamically stir the pathological treatment reagent in a magnetic non-contact driving manner. The reagent switching liquid circuit unit is connected to the inside of the reagent cylinder and is used to switch, add and drain various pathological treatment reagents. The main control unit is electrically connected to the magnetic stirring drive unit and the reagent switching liquid circuit unit, respectively, and is used to coordinate and control the collaborative work of each unit.

[0005] Furthermore, the magnetic stirring drive unit includes a speed-regulating magnetic rotary actuator, a permanent magnet assembly, and a permanent magnet stir bar. The speed-regulating magnetic rotary actuator is fixedly mounted on the frame and is drivenly connected to the permanent magnet assembly. The permanent magnet assembly is located on the outer side of the bottom of the reagent cylinder. The permanent magnet stir bar is placed inside the reagent cylinder at the position corresponding to the permanent magnet assembly to achieve magnetic field coupling with the permanent magnet assembly. The rotation of the permanent magnet assembly drives the permanent magnet stir bar to rotate synchronously. The permanent magnet stir bar is wrapped with a protective layer made of polytetrafluoroethylene. Furthermore, the device also includes a temperature detection sensor, a liquid level detection sensor, a concentration detection sensor, a constant temperature control unit, a negative pressure degassing unit, and an alarm notification unit connected to the main control unit. The temperature detection sensor, liquid level detection sensor, and concentration detection sensor are all integrated and installed inside the reagent cylinder, and are used to collect the temperature, liquid level, and concentration signals of the pathological treatment reagent inside the reagent cylinder in real time and feed them back to the main control unit. The constant temperature control unit is attached to the outer wall of the reagent cylinder and is used to achieve constant temperature control of the pathological treatment reagent in the reagent cylinder, with a temperature control range of 35℃~55℃. The negative pressure degassing unit is connected to the processing box and is used to perform negative pressure degassing on the processing box. The alarm notification unit is used to issue audible and visual warnings when abnormal liquid level, abnormal temperature, or abnormal concentration occurs. Furthermore, the bottom of the reagent cylinder is exposed outside the processing box, and the bottom of the reagent cylinder is provided with two sets of inlet and outlet ports, and the two sets of inlet and outlet ports are respectively sealed and connected to the reagent switching liquid circuit unit; Furthermore, the reagent switching liquid circuit unit includes a fixed liquid tank, a switching solenoid valve group, a waste liquid tank, a reagent storage tank, and a multi-channel supply buffer tank; the fixed liquid tank is connected to one of the inlet and outlet ports through a fixed liquid pipeline; the waste liquid tank, the reagent storage tank, and the multi-channel supply buffer tank are all connected to the input end of the switching solenoid valve group through independent pipelines, and the output end of the switching solenoid valve group is connected to another inlet and outlet port through a main pipeline; gear pumps are connected to both the fixed liquid pipeline and the main pipeline. Furthermore, there are two liquid supply buffer tanks, which are divided into a first liquid supply buffer tank and a second liquid supply buffer tank; the switching solenoid valve group is electrically connected to the main control unit; the switching solenoid valve group is a multi-channel independently controlled solenoid valve, and each of the solenoid valves is respectively connected to the waste liquid tank, the reagent storage tank, the first liquid supply buffer tank, and the second liquid supply buffer tank; Furthermore, the fixative tank is used to supply fixative to the reagent tank; the first supply buffer tank, the second supply buffer tank, and the reagent storage tank all contain the same type of pathological treatment reagent, and the concentration of the pathological treatment reagent in the first supply buffer tank, the second supply buffer tank, and the reagent storage tank increases in a gradient. A rapid dehydration method for pathological tissues based on magnetic dynamic stirring includes the following steps: S1. Place the carrier containing the pathological tissue specimen into the reagent container of the processing box and complete the sealing self-test; S2. Start the negative pressure degassing unit to perform negative pressure degassing pretreatment on the inside of the processing box, wherein the vacuum degree is 0.06MPa~0.08MPa; S3. The fixative and pathological treatment reagents of different concentrations are pumped in step by step. Each step is matched with a magnetic stirring mode with a corresponding rotation speed, and the penetration of the pathological treatment reagents is enhanced by constant temperature control until all steps are completed and the liquid in the reagent tank is discharged. S4. Depressurize the processing box, then remove the carrier containing the pathological tissue specimen, and finally complete the dehydration process.

[0006] Furthermore, step S3 also includes the following steps: S3.1. Pump the fixative into the reagent cylinder, and the magnetic stirring drive unit continuously stirs at 100r / min~200r / min for 15min~35min. Then, discharge the fixative in the reagent cylinder into the waste liquid tank. S3.2. The pathological treatment reagent in the first supply buffer tank is pumped into the reagent tank. The magnetic stirring drive unit stirs at intervals of 300r / min to 500r / min for 3s to 5s, and continues stirring for 12min to 15min. Then the pathological treatment reagent in the reagent tank is discharged into the waste liquid tank. S3.3. The pathological treatment reagent in the second supply buffer tank is pumped into the reagent cylinder. The magnetic stirring drive unit stirs at intervals of 300r / min to 500r / min for 3s to 5s, and continues stirring for 12min to 15min. Then the pathological treatment reagent in the reagent cylinder is discharged into the first supply buffer tank. S3.4. Pump the pathological treatment reagent in the reagent storage tank into the reagent cylinder. The magnetic stirring drive unit stirs at intervals of 300r / min to 500r / min for 3s to 5s, and continues stirring for 12min to 15min. Then, discharge the pathological treatment reagent in the reagent cylinder into the second supply buffer tank. Further, in step S3.4, after stirring, the concentration of the pathological treatment reagent in the reagent tank is detected. If the concentration value is greater than the concentration threshold, it is determined that it can be reused, and the pathological treatment reagent in the reagent tank is discharged to the second supply buffer tank; if the concentration value is less than the concentration threshold, it is determined that it is invalid, and the pathological treatment reagent in the reagent tank is discharged to the waste liquid tank.

[0007] The beneficial effects of this invention are that, relying on a magnetic non-contact dynamic stirring method, the reagent is driven to form a laminar flow circulation through magnetic field rotation, continuously flushing the tissue surface, breaking the concentration boundary layer, and accelerating the penetration of the reagent into the tissue micropores. This not only achieves no mechanical wear and no failure loss, and eliminates reagent leakage and cross-contamination, but also significantly shortens the entire process time of tissue dehydration. It is suitable for the batch and rapid diagnostic needs of clinical pathology departments and has good application value. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the hidden frame of the present invention; Figure 4 This is a top view of the structure of the present invention after the frame is hidden; Figure 5 This is a structural block diagram of the present invention. Detailed Implementation

[0009] like Figures 1-5 As shown, the present invention provides a rapid dehydration device for pathological tissue based on magnetic dynamic stirring, including a frame 1 and a processing box 2 mounted on the frame 1, a magnetic stirring drive unit 3, a reagent switching liquid circuit unit 4, and a main control unit; the processing box 2 is a fully sealed, corrosion-resistant, and pressure-resistant structure, providing a sealed processing chamber for tissue dehydration; the processing box 2 is equipped with a reagent cylinder 5 for holding various pathological processing reagents; The magnetic stirring drive unit 3 is matched and installed with the reagent cylinder 5 to dynamically stir the pathological treatment reagents in a non-contact magnetic driving manner. The reagent switching liquid circuit unit 4 is internally connected to the reagent cylinder 5 and is used to switch, add and drain various pathological treatment reagents. The main control unit is electrically connected to the magnetic stirring drive unit 3 and the reagent switching liquid circuit unit 4, respectively, and is used to coordinate and control the collaborative work of each unit.

[0010] The magnetic stirring drive unit 3 includes a speed-regulating magnetic rotary driver 6, a permanent magnet assembly 7, and a permanent magnet stir bar 8. The speed-regulating magnetic rotary driver 6 is fixedly mounted on the frame 1 and is connected to the permanent magnet assembly 7 via a transmission. The permanent magnet assembly 7 is located on the outer side of the bottom of the reagent cylinder 5. The permanent magnet stir bar 8 is placed inside the reagent cylinder 5 at the position corresponding to the permanent magnet assembly 7 to achieve magnetic field coupling with the permanent magnet assembly 7. The rotation of the permanent magnet assembly 7 drives the permanent magnet stir bar 8 to rotate synchronously, achieving non-contact stirring. That is, the permanent magnet stir bar 8 is suspended below the surface of the reagent liquid without any mechanical connection structure. The permanent magnet stir bar 8 is wrapped with a protective layer made of polytetrafluoroethylene.

[0011] The device also includes a temperature detection sensor 9, a liquid level detection sensor 10, a concentration detection sensor 11, a constant temperature control unit, a negative pressure degassing unit, and an alarm prompting unit connected to the main control unit. The temperature detection sensor 9, the liquid level detection sensor 10, and the concentration detection sensor 11 are all integrated and installed in the reagent cylinder 5, and are used to collect the temperature, liquid level, and concentration signals of the pathological treatment reagent inside the reagent cylinder 5 in real time and feed them back to the main control unit. The constant temperature control unit is attached to the outer wall of the reagent cylinder 5 to achieve constant temperature control of the pathological treatment reagents in the reagent cylinder 5, and the temperature control range is 35℃~55℃, which further improves the reagent penetration rate. The negative pressure degassing unit is connected to the processing chamber 2 and is used to achieve negative pressure degassing of the processing chamber 2. It can remove residual air bubbles in the tissue micropores, eliminate reagent penetration obstacles caused by air bubbles, and work synergistically with magnetic stirring to greatly improve the uniformity of dehydration of dense tissue. The alarm unit is used to issue audible and visual warnings when abnormal liquid level, temperature, or concentration occurs. The constant temperature control unit, negative pressure degassing unit, alarm unit, and main control unit can use existing components or equipment.

[0012] The bottom of the reagent cylinder 5 is exposed outside the processing box 2, and the bottom of the reagent cylinder 5 is provided with two sets of inlet and outlet ports 12, which are respectively sealed and connected to the reagent switching liquid circuit unit 4.

[0013] The reagent switching liquid circuit unit 4 includes a fixed liquid tank 13, a switching solenoid valve group, a waste liquid tank 14, a reagent storage tank 17, and a multi-channel supply buffer tank. The fixed liquid tank 13 is connected to one of the inlet / outlet ports 12 through a fixed liquid pipeline 18. The waste liquid tank 14, the reagent storage tank 17, and the multi-channel supply buffer tank are all connected to the input end of the switching solenoid valve group through independent pipelines. The output end of the switching solenoid valve group is connected to another inlet / outlet port 12 through a main pipeline 19. Gear pumps 20 are connected to both the fixed liquid pipeline 18 and the main pipeline 19.

[0014] There are two liquid supply buffer tanks, namely the first liquid supply buffer tank 15 and the second liquid supply buffer tank 16; the switching solenoid valve group is electrically connected to the main control unit; the switching solenoid valve group is a multi-way independent control solenoid valve, and each solenoid valve 21 is connected to the waste liquid tank 14, the reagent storage tank 17, the first liquid supply buffer tank 15, and the second liquid supply buffer tank 16 respectively.

[0015] Fixative tank 13 is used to supply fixative to reagent tank 5 to ensure the original morphology of pathological tissue specimens; the first supply buffer tank 15, the second supply buffer tank 16, and the reagent storage tank 17 all contain the same type of pathological treatment reagents, and the concentration of the pathological treatment reagents in the first supply buffer tank 15, the second supply buffer tank 16, and the reagent storage tank 17 increases in a gradient.

[0016] A rapid dehydration method for pathological tissues based on magnetic dynamic stirring includes the following steps: S1. Place the carrier containing the pathological tissue specimen (not shown in the figure) into the reagent cylinder 5 of the processing box 2 and complete the sealing self-test; S2. Start the negative pressure degassing unit to perform negative pressure degassing pretreatment inside the processing box 2, wherein the vacuum degree is 0.06MPa~0.08MPa; S3. The fixative and pathological treatment reagents of different concentrations are pumped in in stages. Each stage is matched with a magnetic stirring mode with a corresponding speed, and the penetration of the pathological treatment reagents is enhanced by constant temperature control until all stages are completed and the liquid in the reagent tank 5 is discharged. The main control unit has multiple pre-stored dehydration and stirring programs, which can automatically adjust the stirring speed and working mode according to the processing steps. Specifically, step S3 also includes the following steps: S3.1 Pump the fixative into reagent cylinder 5, and the magnetic stirring drive unit 3 continuously stirs at 100r / min~200r / min for 35min. Then, discharge the fixative in reagent cylinder 5 into waste liquid tank 14. S3.2. The pathological treatment reagent in the first supply buffer tank 15 is pumped into the reagent tank 5. The magnetic stirring drive unit 3 stirs at intervals of 300r / min to 500r / min for 3s to 5s to form pulsed fluid turbulence, which quickly breaks down the concentration barrier on the tissue surface, accelerates water replacement, and continues stirring for 15min. Then the pathological treatment reagent in the reagent tank 5 is discharged into the waste liquid tank 14. S3.3. The pathological treatment reagent in the second supply buffer tank 16 is pumped into the reagent tank 5. The magnetic stirring drive unit 3 stirs at intervals of 300r / min to 500r / min for 3s to 5s to form a pulsed fluid turbulence, which quickly breaks down the concentration barrier on the tissue surface, accelerates water replacement, and continues stirring for 15min. Then the pathological treatment reagent in the reagent tank 5 is discharged into the first supply buffer tank 15. S3.4. The pathological treatment reagent in the reagent storage tank 17 is pumped into the reagent cylinder 5. The magnetic stirring drive unit 3 stirs the reagent at intervals of 300r / min to 500r / min, with an interval of 3s to 5s, to form a pulsed fluid turbulence, which quickly breaks down the concentration barrier on the tissue surface and accelerates water replacement. The stirring is continued for 15min. After stirring, the concentration of the pathological treatment reagent in the reagent cylinder 5 is detected. If the concentration value is greater than the concentration threshold, it is determined that it can be reused, and the pathological treatment reagent in the reagent cylinder 5 is discharged to the second supply buffer tank 16. If the concentration value is less than the concentration threshold, it is determined that it is invalid, and the pathological treatment reagent in the reagent cylinder 5 is discharged to the waste liquid tank 14. S4. Depressurize the processing box 2, then remove the carrier containing the pathological tissue specimen, and finally complete the dehydration process.

[0017] This invention employs an external magnetic drive at the bottom of the reagent cylinder and a suspended permanent magnet stirrer inside the cylinder, eliminating the need for a mechanical rotating shaft running through the cylinder and completely resolving issues of sealing leaks and cross-contamination. The magnetic field rotation drives the reagent to form a laminar flow circulation, continuously flushing the tissue surface, breaking down the concentration boundary layer, and accelerating reagent penetration into tissue micropores. This significantly improves dehydration mass transfer efficiency, fundamentally shortening dehydration time to within 2 hours. Furthermore, differentiated rotation speeds can be matched for different steps, achieving a balance between dehydration speed and tissue morphology integrity. Additionally, used pathological treatment reagents can be further assessed for reuse rather than being discarded entirely, saving reagents and reducing consumption. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pathological tissue rapid dehydration device based on magnetic force dynamic stirring, characterized in that: The device includes a frame and a processing chamber mounted on the frame, a magnetic stirring drive unit, a reagent switching liquid circuit unit, and a main control unit; the processing chamber is a fully sealed, corrosion-resistant, and pressure-resistant structure, providing a closed processing cavity for tissue dehydration; the processing chamber is equipped with a reagent cylinder for holding various pathological treatment reagents; The magnetic stirring drive unit is matched and installed with the reagent cylinder, and is used to dynamically stir the pathological treatment reagent in a magnetic non-contact driving manner. The reagent switching liquid circuit unit is connected to the inside of the reagent cylinder and is used to switch, add and drain various pathological treatment reagents. The main control unit is electrically connected to the magnetic stirring drive unit and the reagent switching liquid circuit unit, respectively, and is used to coordinate and control the collaborative work of each unit.

2. The rapid dehydration device for pathological tissue based on magnetic dynamic stirring according to claim 1, characterized in that: The magnetic stirring drive unit includes a speed-regulating magnetic rotary driver, a permanent magnet assembly, and a permanent magnet stir bar. The speed-regulating magnetic rotary driver is fixedly mounted on the frame and is connected to the permanent magnet assembly for transmission. The permanent magnet assembly is located on the outer side of the bottom of the reagent cylinder. The permanent magnet stir bar is placed inside the reagent cylinder at the position corresponding to the permanent magnet assembly to achieve magnetic field coupling with the permanent magnet assembly. The rotation of the permanent magnet assembly drives the permanent magnet stir bar to rotate synchronously. The permanent magnet stir bar is wrapped with a protective layer made of polytetrafluoroethylene.

3. The rapid dehydration device for pathological tissue based on magnetic dynamic stirring according to claim 1, characterized in that: The device also includes a temperature detection sensor, a liquid level detection sensor, a concentration detection sensor, a constant temperature control unit, a negative pressure degassing unit, and an alarm unit connected to the main control unit. The temperature detection sensor, liquid level detection sensor, and concentration detection sensor are all integrated and installed inside the reagent cylinder, and are used to collect the temperature, liquid level, and concentration signals of the pathological treatment reagent inside the reagent cylinder in real time and feed them back to the main control unit. The constant temperature control unit is attached to the outer wall of the reagent cylinder and is used to achieve constant temperature control of the pathological treatment reagent in the reagent cylinder, with a temperature control range of 35℃~55℃. The negative pressure degassing unit is connected to the processing box and is used to perform negative pressure degassing on the processing box. The alarm notification unit is used to issue audible and visual warnings when abnormal liquid level, abnormal temperature, or abnormal concentration occurs.

4. The rapid dehydration device for pathological tissue based on magnetic dynamic stirring according to claim 1, characterized in that: The bottom of the reagent cylinder is exposed outside the processing box, and the bottom of the reagent cylinder is provided with two sets of inlet and outlet ports, and the two sets of inlet and outlet ports are respectively sealed and connected to the reagent switching liquid circuit unit.

5. The rapid dehydration device for pathological tissue based on magnetic dynamic stirring according to claim 4, characterized in that: The reagent switching liquid circuit unit includes a fixed liquid tank, a switching solenoid valve group, a waste liquid tank, a reagent storage tank, and a multi-channel supply buffer tank; the fixed liquid tank is connected to one of the inlet and outlet ports through a fixed liquid pipeline; the waste liquid tank, the reagent storage tank, and the multi-channel supply buffer tank are all connected to the input end of the switching solenoid valve group through independent pipelines, and the output end of the switching solenoid valve group is connected to the other inlet and outlet port through a main pipeline; gear pumps are connected to both the fixed liquid pipeline and the main pipeline.

6. The rapid dehydration device for pathological tissue based on magnetic dynamic stirring according to claim 5, characterized in that: The liquid supply buffer tank is provided in two parts, namely the first liquid supply buffer tank and the second liquid supply buffer tank; the switching solenoid valve group is electrically connected to the main control unit; the switching solenoid valve group is a multi-channel independently controlled solenoid valve, and each solenoid valve is respectively connected to the waste liquid tank, the reagent storage tank, the first liquid supply buffer tank, and the second liquid supply buffer tank.

7. The rapid dehydration device for pathological tissue based on magnetic dynamic stirring according to claim 6, characterized in that: The fixative tank is used to supply fixative to the reagent tank; the first supply buffer tank, the second supply buffer tank, and the reagent storage tank all contain the same type of pathological treatment reagent, and the concentration of the pathological treatment reagent in the first supply buffer tank, the second supply buffer tank, and the reagent storage tank increases in a gradient.

8. A rapid dehydration method for pathological tissues based on magnetic dynamic stirring, characterized in that: The rapid dehydration device for pathological tissue based on magnetic dynamic stirring as described in any one of claims 1 to 7 is used. The method includes the following steps: S1. Place the carrier containing the pathological tissue specimen into the reagent container of the processing box and complete the sealing self-test; S2. Start the negative pressure degassing unit to perform negative pressure degassing pretreatment on the inside of the processing box, wherein the vacuum degree is 0.06MPa~0.08MPa; S3. The fixative and pathological treatment reagents of different concentrations are pumped in in stages. Each stage is matched with a magnetic stirring mode with a corresponding rotation speed, and the penetration of the pathological treatment reagents is enhanced by constant temperature control until all stages are completed and the liquid in the reagent tank is discharged. S4. Depressurize the processing box, then remove the carrier containing the pathological tissue specimen, and finally complete the dehydration process.

9. A rapid dehydration method for pathological tissues based on magnetic dynamic stirring according to claim 8, characterized in that: Step S3 further includes the following steps: S3.1 Pump the fixative into the reagent tank, and the magnetic stirring drive unit continuously stirs at 100r / min~200r / min for 15min~35min. Then, discharge the fixative in the reagent tank into the waste liquid tank. S3.

2. The pathological treatment reagent in the first supply buffer tank is pumped into the reagent cylinder. The magnetic stirring drive unit stirs at intervals of 300r / min to 500r / min for 3s to 5s, and continues stirring for 12min to 15min. Then the pathological treatment reagent in the reagent cylinder is discharged into the waste liquid tank. S3.

3. The pathological treatment reagent in the second supply buffer tank is pumped into the reagent cylinder. The magnetic stirring drive unit stirs at intervals of 300r / min to 500r / min for 3s to 5s, and continues stirring for 12min to 15min. Then the pathological treatment reagent in the reagent cylinder is discharged into the first supply buffer tank. S3.

4. Pump the pathological treatment reagent in the reagent storage tank into the reagent cylinder. The magnetic stirring drive unit stirs at intervals of 300r / min to 500r / min for 3s to 5s, and continues stirring for 12min to 15min. Then, discharge the pathological treatment reagent in the reagent cylinder into the second supply buffer tank.

10. A rapid dehydration method for pathological tissues based on magnetic dynamic stirring according to claim 8, characterized in that: In step S3.4, after stirring, the concentration of the pathological treatment reagent in the reagent tank is detected. If the concentration value is greater than the concentration threshold, it is determined that it can be reused, and the pathological treatment reagent in the reagent tank is discharged to the second supply buffer tank. If the concentration value is less than the concentration threshold, it is determined to be invalid, and the pathological treatment reagent in the reagent tank is discharged into the waste liquid tank.

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