Dyeing fluid path system and dyeing equipment

Abstract

The dyeing fluid path system comprises a plurality of dyeing units, each dyeing unit comprises a dyeing bin, a reagent bottle and a liquid conveying assembly, each liquid conveying assembly comprises a conveying pump and a liquid conveying pipe, the first end of each liquid conveying pipe is communicated with the corresponding dyeing bin, the second end of each liquid conveying pipe is communicated with the corresponding reagent bottle, and each conveying pump is arranged on the corresponding liquid conveying pipe; and forward infusion and reverse infusion can be realized. Before dyeing operation is carried out, a dyeing reagent in a reagent bottle is extracted by utilizing a conveying pump, the dyeing reagent is conveyed into a dyeing bin through a liquid conveying pipe, and a glass slide frame is immersed into the dyeing bin so as to dye a glass slide; after dyeing is finished, the dyeing reagent in the dyeing bin is pumped by the conveying pump, and the dyeing reagent is conveyed back to the reagent bottle through the liquid conveying pipe to be stored. The problem that the usage amount of the manually added dyeing reagent is not accurate is solved, the dyeing reagent is automatically recovered, the dyeing reagent is favorably stored, the operation is simplified, and mixed loading and waste of the manually recovered dyeing reagent are eliminated.

Description

Technical Field

[0001] This application relates to the field of staining technology, and in particular to medical devices, and discloses a staining liquid circuit system and staining equipment. Background Technology

[0002] In various dyeing equipment, such as textile dyeing equipment, paper dyeing equipment, and medical dyeing equipment, dyeing vats are typically used to hold dyeing agents.

[0003] Taking staining equipment as an example, in conventional staining equipment, multiple staining tanks are placed on the table, each containing various staining reagents. A transfer robotic arm moves a slide holder containing glass slides between the staining tanks to complete the staining process. The problems are: 1. Manual addition of staining reagents to each staining tank is required, making it difficult to precisely control the amount of reagents; 2. Since some reagents are volatile, prolonged exposure can affect their lifespan, and manual recovery of staining reagents is cumbersome and prone to mixing, resulting in waste; 3. When using reagent bottles to store staining reagents, small holes are usually made in the bottles to maintain pressure balance during extraction and recovery, but this can lead to reagent evaporation and leakage. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a staining solution system capable of accurately and automatically adding and recovering staining reagents.

[0005] This application also proposes a dyeing device that utilizes the aforementioned dyeing liquid path system.

[0006] The staining solution system provided in this application includes several staining units. Each staining unit includes a staining chamber, a reagent bottle, and an infusion assembly. The infusion assembly includes a delivery pump and an infusion tube. The first end of the infusion tube is connected to the staining chamber, and the second end of the infusion tube is connected to the reagent bottle. The delivery pump is mounted on the infusion tube and is capable of both forward and reverse infusion.

[0007] The staining solution system provided in this application has at least the following technical advantages:

[0008] Before staining, a transfer pump draws staining reagent from the reagent bottle and delivers it into the staining chamber via an infusion tube. The slide holder is then immersed in the staining chamber to stain the slides. After staining, the transfer pump removes the staining reagent from the staining chamber and delivers it back to the reagent bottle for storage via an infusion tube. This process eliminates the problem of inaccurate dosage when manually adding staining reagent, facilitates reagent preservation through automatic reagent recovery, simplifies operation, and eliminates the mixing and waste associated with manual reagent recovery.

[0009] According to some embodiments of the first aspect of this application, the delivery pump is a peristaltic pump, and the pump tube of the peristaltic pump is connected to the infusion tube.

[0010] According to some embodiments of the first aspect of this application, the second end is provided with a liquid extraction check valve and a bypass, wherein the bypass is provided with a recovery check valve.

[0011] According to some embodiments of the first aspect of this application, the inlet of the liquid-drawing check valve is provided with a liquid-drawing pipe, and the end of the liquid-drawing pipe is provided with a filter.

[0012] According to some embodiments of the first aspect of this application, the reagent bottle has a cap, the infusion tube passes through the cap, and the cap is provided with an exhaust check valve and an infusion check valve.

[0013] According to some embodiments of the first aspect of this application, the dyeing chamber is provided with an overflow port at its upper part, and the overflow port is connected to a waste liquid pool through a waste liquid pipe.

[0014] According to some embodiments of the first aspect of this application, the dyeing chamber is connected to a cleaning pipe, one end of which is connected to a water tank or an external water source.

[0015] According to some embodiments of the first aspect of this application, the other end of the cleaning tube is connected to the infusion tube, and the connection between the cleaning tube and the infusion tube is located between the first end and the delivery pump.

[0016] According to some embodiments of the first aspect of this application, one end of the cleaning pipe is connected to a drain valve, the drain valve having multiple ports, one of which is connected to the external water source, and another of which is connected to the waste liquid pool through a waste reagent pipe.

[0017] According to some embodiments of the first aspect of this application, the staining solution system has a slide washing chamber for holding glass slides for cleaning, and an overflow outlet is provided at the top of the slide washing chamber, which is connected to the waste liquid tank through a drain pipe.

[0018] According to some embodiments of the first aspect of this application, one of the ports of the drain valve (250) is connected to the film washing chamber via a water inlet pipe.

[0019] According to some embodiments of the first aspect of this application, the drain valve has a plurality of solenoid valves, and each of the ports is controlled to open and close by one of the solenoid valves.

[0020] According to some embodiments of the first aspect of this application, the external water source is a tap water pipe, and the tap water pipe is equipped with an inlet solenoid valve to control its opening and closing.

[0021] According to some embodiments of the first aspect of this application, the upper end of the dyeing chamber is provided with a chamber cover that can be opened movably.

[0022] The staining apparatus according to a second aspect of this application includes the staining liquid path system described in the first aspect embodiment.

[0023] According to some embodiments of the second aspect of this application, the dyeing equipment includes a robotic arm, which is equipped with a cleaning solution inlet pipe and a cleaning solution outlet pipe that can extend into the dyeing chamber.

[0024] The staining equipment provided in this application is based on the staining liquid circuit system provided in this application. Therefore, the staining equipment has all the beneficial effects of the staining liquid circuit system, which will not be elaborated further. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a schematic diagram of the staining solution system according to an embodiment of this application.

[0027] Figure label:

[0028] The system includes a staining liquid circuit system 100, a staining unit 200, a staining chamber 210, an overflow port 211, a waste liquid pipe 212, a cleaning pipe 213, a chamber cover 214, a reagent bottle 220, a bottle cap 221, an exhaust check valve 222, a gas replenishment check valve 223, an infusion assembly 230, a transfer pump 231, an infusion pipe 232, a liquid extraction check valve 233, a recovery check valve 234, a filter 235, a waste liquid pool 240, a waste reagent pipe 241, a drain valve 250, a water inlet solenoid valve 251, a slide washing chamber 260, an overflow port 261, a drain pipe 262, and a water inlet pipe 263. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0033] In various dyeing equipment, such as textile dyeing equipment, paper dyeing equipment, and tissue section staining machines in the medical industry, dyeing tanks are usually used to hold dyeing reagents, which presents many problems in the recovery and retention of dyeing reagents.

[0034] The following explanation uses a staining equipment as an example. In conventional staining equipment, multiple staining tanks are placed on the table, each containing various staining reagents required for staining. A transfer robotic arm moves a slide holder containing glass slides between the staining tanks to complete the staining process. The problems are: 1. Manual addition of staining reagents to each staining tank is required, making it difficult to precisely control the amount of reagents; 2. Since some reagents are volatile, prolonged exposure can affect their lifespan. Manually recovering staining reagents is cumbersome and prone to mixing, leading to waste.

[0035] Therefore, an embodiment of the first aspect of this application proposes a staining liquid path system 100, which is applied to staining equipment. The staining liquid path system 100 can achieve precise automatic addition and recovery of staining reagents.

[0036] The staining solution system 100 includes several staining units 200. Each staining unit 200 includes key components such as a staining chamber 210, a reagent bottle 220, and an infusion assembly 230. The number of staining units 200 is set according to the number of staining reagents, usually slightly more than the number of staining reagents, with 1-2 staining units 200 reserved as spares; or, the number of staining units 200 is set according to the needs of the staining equipment.

[0037] The staining chamber 210 is the area for staining operations. Inside, it contains items to be stained, such as glass slides. Multiple slides are typically mounted on a slide holder; the following explanation uses an example of multiple slides mounted on a slide holder. During the staining process, the slide holder is immersed in the staining reagent within the staining chamber 210 to ensure full contact between the slide and the reagent, achieving the desired staining effect. The material of the staining chamber 210 has good corrosion resistance to ensure that it will not change even after prolonged contact with the staining reagent, thus avoiding any impact on the staining result.

[0038] Reagent bottle 220 is used to store staining reagents. Its opening is equipped with a sealing device (such as cap 221) to prevent evaporation and contamination. The capacity of reagent bottle 220 can be set according to actual usage to meet the needs of different staining operations. Furthermore, reagent bottle 220 is usually clearly labeled with information such as reagent name, concentration, and expiration date for easy management and use.

[0039] The infusion assembly 230 serves as a bridge connecting the staining chamber 210 and the reagent bottle 220, and includes components such as a delivery pump 231 and an infusion tube 232. The first end of the infusion tube 232 connects to the staining chamber 210, and the second end connects to the reagent bottle 220, forming a complete fluid path. The delivery pump 231 is mounted on the infusion tube 232 and is used to control the direction and volume of the staining reagent delivery.

[0040] Specifically, the transfer pump 231 can be a bidirectional pump, capable of both forward and reverse infusion functions. In forward infusion mode, the transfer pump 231 delivers the staining reagent from reagent bottle 220 to staining chamber 210 via infusion tubing 232 for use in staining glass slides. At this time, the operating pressure of the transfer pump 231 should be moderate to ensure that the staining reagent flows evenly and stably into staining chamber 210, reducing adverse factors such as air bubbles and eddies. In reverse infusion mode, the transfer pump 231 draws the staining reagent from staining chamber 210 back into reagent bottle 220 via infusion tubing 232, achieving the recovery and preservation of the staining reagent. At this time, the suction force of the transfer pump 231 should be strong enough to ensure that the staining reagent in staining chamber 210 is completely drawn back, avoiding residue and waste.

[0041] In addition, the delivery pump 231 can also be a unidirectional pump, and a reversing valve is set at the connection between the delivery pump 231 and the delivery pipe 232 to satisfy both forward and reverse delivery functions.

[0042] To achieve automated control, the control system controls the working status of the delivery pump 231 and the opening and closing of the infusion tube 232, thereby enabling precise addition and recovery of the staining reagent.

[0043] In practical applications, the staining solution system has the following significant technical advantages:

[0044] 1. Precise control of dyeing reagent quantity: Through the precise coordination of the controller and the delivery pump 231, the precise control of the dyeing reagent delivery quantity is achieved, which can not only improve the accuracy and consistency of dyeing operations, but also avoid waste and contamination of dyeing reagents due to human error.

[0045] 2. Automatic Recovery of Dyeing Reagent: After dyeing is completed, the transfer pump 231 can automatically pump the dyeing reagent in the dyeing chamber 210 back to the reagent bottle 220 for storage. This not only extends the service life of the dyeing reagent but also reduces reagent volatilization and pollution, thus reducing the impact on the environment.

[0046] 3. Simplified operation process: Due to the implementation of automated control, operators only need to set the dyeing program and parameters to carry out batch dyeing operations, which simplifies the operation process, reduces labor intensity, and improves work efficiency.

[0047] 4. Eliminate mixing and waste: By setting up independent dyeing units 200 and control systems, the different dyeing reagents are managed and used in separate areas, avoiding mixing and waste that may occur when manually recycling dyeing reagents, and ensuring the accuracy and stability of dyeing reagents.

[0048] The staining solution system offers advantages such as precise control of staining reagent volume, automatic reagent recovery, simplified operation, and elimination of mixing and waste. Applying this staining solution system to staining equipment will provide more accurate, efficient, and environmentally friendly staining solutions for laboratory diagnosis in fields such as pathology and cytology.

[0049] In some embodiments of this application, a peristaltic pump is used as the delivery pump 231, and the pump tube of the peristaltic pump is directly connected to the infusion tube 232. A peristaltic pump is a device that pumps liquid by periodically squeezing and releasing an elastic pump tube using rollers. Its unique working principle allows it to handle various liquids, including high-viscosity, corrosive, or shear-sensitive fluids, without contaminating the fluid itself. The peristaltic pump can deliver dyeing reagents in both forward and reverse directions by rotating the rollers. Peristaltic pumps offer advantages such as high precision, high flow stability, and corrosion resistance in dyeing reagent metering. By compressing the pump tube, the peristaltic pump delivers dyeing reagents, has a wide flow adjustment range, and allows for fine-tuning, ensuring high metering accuracy. Furthermore, peristaltic pumps have a simple structure, low maintenance costs, and are easy to operate, making them suitable for various automated control systems.

[0050] In a specific embodiment, the peristaltic pump is installed at an appropriate location on the infusion tubing 232, typically near the first end of the staining chamber 210. The material of the pump tubing must be selected based on the chemical properties of the staining reagent being delivered, ensuring corrosion resistance, wear resistance, and a certain degree of elasticity to maintain pumping efficiency. The use of a peristaltic pump not only improves system flexibility, allowing precise control of the staining solution flow rate by adjusting the roller speed, but also reduces the risk of leakage due to its seal-less design, making it particularly suitable for staining processes requiring highly clean and sterile conditions. Furthermore, the peristaltic pump is easy to maintain and clean, and the pump tubing, as a consumable, can be replaced periodically, further ensuring the long-term stable operation of the system.

[0051] Reference Figure 1 In some embodiments of this application, a one-way valve 233 and a bypass are provided at the second end of the infusion tube 232 connecting to the reagent bottle 220. A one-way valve 234 is provided on the bypass. The above design aims to separate the extraction and recovery of the staining reagent. The one-way valve 233 is installed at the second end of the infusion tube 232. When extracting the staining reagent from the reagent bottle 220, the one-way valve 233 is open, while the one-way valve 234 is closed, and the staining reagent flows from the inside of the reagent bottle 220 to the outside. When recovering the staining reagent, the one-way valve 233 is closed, while the one-way valve 234 is open, and the staining reagent flows from the bottom of the staining chamber 210 to the reagent bottle 220.

[0052] Furthermore, a filter 235 is added to the inlet of the liquid extraction check valve 233. The filter 235, installed at the inlet of the liquid extraction check valve 233, can effectively intercept and remove impurities such as suspended particles, fibers, and dust, making the dyeing reagent delivered to the dyeing chamber 210 cleaner. The filter 235 is located at the bottom of the reagent bottle 220, while the recovery check valve 234 is located at the top of the reagent bottle 220. When extracting the dyeing reagent, it is drawn from the bottom of the reagent bottle 220, and the returned dyeing reagent flows in from the top of the reagent bottle 220, which helps maintain the concentration of the dyeing reagent and improves the stability of the dyeing operation.

[0053] The selection and maintenance of filter 235 are equally important. Depending on the characteristics of the dyeing reagent and the frequency of use, filter 235 needs to be inspected and replaced regularly to prevent clogging that could lead to reduced flow or system failure. Furthermore, some advanced filters 235 also have a self-cleaning function, extending their service life and reducing maintenance costs through backwashing or compressed air purging.

[0054] Furthermore, a cap 221 is provided at the upper end of the reagent bottle 220 to improve the sealing performance of the reagent bottle 220. The cap 221 is equipped with an exhaust one-way valve 222 and a gas replenishment one-way valve 223, and the infusion tube 232 passes through the cap 221. The exhaust one-way valve 222 automatically opens when the staining reagent is returned, allowing air inside the bottle to escape and preventing the return of the staining reagent from being affected by excessive air pressure inside the bottle. When the staining reagent is drawn, the air pressure inside the reagent bottle 220 will decrease, and the gas replenishment one-way valve 223 will automatically open, allowing outside air to enter the reagent bottle 220 in a controlled manner, thereby maintaining the stability of the air pressure inside and outside the reagent bottle 220 and ensuring the continuous and stable operation of the staining liquid circuit system. Except when the staining reagent is drawn and recovered, the exhaust one-way valve 222 and the gas replenishment one-way valve 223 are in the closed state, and the reagent bottle 220 remains in a closed state to prevent the staining reagent from evaporating and leaking, and also helps to maintain the cleanliness of the staining reagent.

[0055] Reference Figure 1 In some embodiments of this application, an overflow port 211 is provided at the top of the dyeing chamber 210, and the overflow port 211 is connected to a waste liquid pool 240 via a waste liquid pipe 212. After dyeing, the dyeing chamber 210 can be cleaned, and the waste liquid generated during cleaning is discharged through the overflow port 211 and flows into the waste liquid pool 240 through the waste liquid pipe 212, thereby avoiding pollution caused by waste liquid overflow. The overflow port 211 is usually located near the highest liquid level line of the dyeing chamber 210 to ensure that the waste liquid can be discharged in time before it reaches a dangerous level. The waste liquid pipe 212 is made of a corrosion-resistant material to ensure long-term stability and reliability. The waste liquid pool 240 is used to collect and treat the waste liquid discharged from the overflow port 211, facilitating subsequent environmental protection treatment and resource recycling.

[0056] Furthermore, the staining chamber 210 is also connected to a cleaning pipe 213. One end of the cleaning pipe 213 is connected to a water tank or an external water source, allowing cleaning solution to be injected into the staining chamber 210 after staining to remove residual staining reagents and other residues, ensuring the cleanliness of the staining chamber 210. The water tank is used to store the cleaning solution, which can be water or other cleaning solutions. The external water source can be tap water, a circulating water system, etc., depending on the configuration of the laboratory or production line. The external water source can be a tap water pipe, and the tap water pipe is equipped with an inlet solenoid valve 251 to control its opening and closing, using tap water as the source of the cleaning solution, while the solenoid valve precisely controls the inflow rate and time of the tap water.

[0057] Furthermore, the other end of the cleaning tube 213 is connected to the infusion tube 232, and the connection between the cleaning tube 213 and the infusion tube 232 is located between the first end and the delivery pump 231. When cleaning is required, the cleaning solution can be introduced from the cleaning tube 213 into the infusion tube 232 by switching valves or controlling the system, and then injected into the bottom of the dyeing chamber 210. When the liquid level of the cleaning solution rises to the overflow port 211, it flows from the overflow port 211 into the waste liquid tube 212, and finally into the waste liquid pool 240. At the same time, the cleaning solution also helps to clean part of the infusion tube 232, reducing the residual dyeing reagent in the infusion tube 232.

[0058] Reference Figure 1 It is understood that multiple dyeing units 200 can share a waste liquid tank 240 and an external water source. A drain valve 250 is connected to one end of the cleaning pipe 213. The drain valve 250 is an integrated device with internally switchable pipeline connections. The drain valve 250 has multiple ports, one of which connects to the external water source, and another port connects to the waste liquid tank 240 via the waste reagent pipe 241. Each dyeing unit 200's cleaning pipe 213 is connected to one port. When the dyeing chamber 210 needs cleaning, valve 7 is opened, and one or more valves from 2 to 6 are opened simultaneously, injecting cleaning solution into one or more dyeing chambers 210. The cleaning solution is introduced from the cleaning pipe 213 into the infusion pipe 232, and then injected into the bottom of the dyeing chamber 210. When the level of the cleaning solution rises to the overflow port 211, it flows from the overflow port 211 into the waste liquid pipe 212, and finally into the waste liquid tank 240. Through continuous rinsing, residual dyeing reagents in the dyeing chamber 210 are removed. Then close valve 7 and open valve 1. Using gravity, the cleaning solution in dyeing chamber 210 is discharged into waste liquid pool 240 through cleaning pipe 213 and waste reagent pipe 241.

[0059] In practical applications, each port of the drain valve 250 can be equipped with a solenoid valve or a manual valve to control the inflow and outflow of liquid. Each solenoid valve can be connected to the control system and its opening and closing status can be controlled by a preset program or command. During the cleaning process, the control system can automatically adjust the opening and closing status of the solenoid valves on the cleaning pipe 213 and the water inlet pipe 263 according to the cleaning requirements and the water level in the washing chamber 260 to achieve precise cleaning control.

[0060] In some embodiments of this application, a slide washing chamber 260 is also provided. The slide washing chamber 260 is used to hold glass slides for cleaning. An overflow port 261 is provided at the top of the slide washing chamber 260. The overflow port 261 is connected to a waste liquid tank 240 through a drain pipe 262. Cleaning fluid is injected into the slide washing chamber 260 to clean the slide holder. After cleaning, the waste liquid flows into the waste liquid tank 240 through the overflow port 261 and the drain pipe 262. One port of the drain valve 250 is connected to the slide washing chamber 260 through a water inlet pipe 263. The water level and water flow rate in the slide washing chamber 260 can be conveniently controlled by the drain valve 250, thereby completing automated cleaning.

[0061] In addition, since the cleaning tube 213 is connected to the infusion tube 232, and the cleaning tube 213 and the waste reagent tube 241 are respectively connected to one port of the drain valve 250, the used dyeing reagent in the reagent bottle 220 can be extracted by the transfer pump 231 through the drain valve 250 and transported to the waste liquid pool 240 through the cleaning tube 213 and the waste reagent tube 241, so as to automatically clean up the discarded dyeing reagent.

[0062] In some embodiments of this application, the upper end of the staining chamber 210 is provided with a movable cover 214. A power component can be provided to drive the cover 214 so that the cover 214 is automatically opened before the slide holder enters the staining chamber 210 and automatically closed after staining is completed, so as to prevent the staining chamber 210 and the staining reagent from being contaminated.

[0063] The second aspect of this application provides a dyeing apparatus, which includes the dyeing liquid circuit system of the first aspect embodiment, encompasses all the technical solutions of the dyeing liquid circuit system, and has all the technical effects of the dyeing liquid circuit system, which will not be repeated here.

[0064] In some embodiments of this application, the dyeing equipment includes a robotic arm, which is equipped with a cleaning solution inlet pipe and a cleaning solution outlet pipe that can extend into the dyeing chamber 210. After dyeing is completed, when it is necessary to clean the dyeing chamber 210, cleaning solution is injected into the dyeing chamber 210 through the cleaning solution inlet pipe, and then the cleaning solution and residual dyeing reagent are extracted through the cleaning solution outlet pipe. Repeating the rinsing process multiple times can complete the cleaning of the dyeing chamber 210.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A staining solution system, characterized in that, include: Several staining units (200) are provided. Each staining unit (200) includes a staining chamber (210), a reagent bottle (220), and an infusion assembly (230). The infusion assembly (230) includes a delivery pump (231) and an infusion tube (232). The first end of the infusion tube (232) is connected to the staining chamber (210), and the second end of the infusion tube (232) is connected to the reagent bottle (220). The delivery pump (231) is installed on the infusion tube (232) and is capable of both forward and reverse infusion.

2. The staining solution system according to claim 1, characterized in that, The delivery pump (231) is a peristaltic pump, and the pump tube of the peristaltic pump is connected to the infusion tube (232).

3. The staining solution system according to claim 1, characterized in that, The second end is provided with a liquid extraction check valve (233) and a bypass, and the bypass is provided with a recovery check valve (234).

4. The staining solution system according to claim 3, characterized in that, The inlet of the liquid-drawing check valve (233) is provided with a liquid-drawing pipe, and the end of the liquid-drawing pipe is provided with a filter (235).

5. The staining solution system according to claim 1, characterized in that, The reagent bottle (220) has a cap (221), and the infusion tube (232) passes through the cap (221). The cap (221) is provided with an exhaust check valve (222) and a gas replenishment check valve (223).

6. The staining solution system according to claim 1, characterized in that, The dyeing chamber (210) is provided with an overflow port (211) at the top, and the overflow port (211) is connected to a waste liquid pool (240) through a waste liquid pipe (212).

7. The staining solution system according to claim 6, characterized in that, The dyeing chamber (210) is connected to a cleaning pipe (213), one end of which is connected to a water tank or an external water source.

8. The staining solution system according to claim 7, characterized in that, The other end of the cleaning tube (213) is connected to the infusion tube (232), and the connection between the cleaning tube (213) and the infusion tube (232) is located between the first end and the delivery pump (231).

9. The staining solution system according to claim 8, characterized in that, One end of the cleaning pipe (213) is connected to a drain valve (250), which has multiple ports, one of which is connected to the external water source, and the other of which is connected to the waste liquid pool (240) through a waste reagent pipe (241).

10. The staining solution system according to claim 9, characterized in that, The staining liquid path system has a slide washing chamber (260) for holding glass slides for cleaning. The upper part of the slide washing chamber (260) is provided with an overflow outlet (261), which is connected to the waste liquid pool (240) through a drain pipe (262).

11. The staining solution system according to claim 10, characterized in that, One of the ports of the drain valve (250) is connected to the film washing chamber (260) via a water inlet pipe (263).

12. The staining solution system according to claim 9, characterized in that, The drain valve (250) has multiple solenoid valves, and each port is controlled to open and close by one of the solenoid valves.

13. The staining solution system according to claim 7, characterized in that, The external water source is a tap water pipe, and the tap water pipe is equipped with an inlet solenoid valve (251) to control its opening and closing.

14. The staining solution system according to any one of claims 1 to 13, characterized in that, The dyeing chamber (210) is provided with a movable chamber cover (214) at its upper end.

15. A dyeing apparatus, characterized in that, Includes the staining fluid system as described in any one of claims 1 to 14.

16. The dyeing apparatus according to claim 15, characterized in that, The dyeing equipment includes a robotic arm, which is equipped with a cleaning solution inlet pipe and a cleaning solution outlet pipe that can extend into the dyeing chamber.

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