Liquid medicine preparation system convenient to adjust

Abstract

This application discloses an easily adjustable liquid preparation system, relating to the field of drug preparation equipment technology. By optimizing and improving the structure of existing liquid preparation systems, a liquid channel and a spray nozzle are set on the mixing component located in the processing chamber. While mixing, the liquid in the processing chamber is controlled to circulate and be sprayed out through the mixing component, increasing turbulence and thus significantly improving mixing efficiency. The system achieves the following technical effects: effectively promoting axial movement of the liquid in the tank during liquid mixing; effectively improving the uniformity and mixing efficiency of the liquid; conveniently adjusting the pH value of the liquid; and having a simple structure.

Description

Technical Field

[0001] This invention relates to the field of drug preparation equipment technology, and in particular to a drug preparation system that is easy to adjust. Background Technology

[0002] The production process of large-volume injections generally includes steps such as concentration preparation, dilution preparation, coarse filtration, fine filtration, filling, sterilization, light inspection, labeling, and packaging of raw materials, excipients, and water for injection. Among these, concentration preparation and dilution preparation are usually completed in a mixing tank. When preparing the concentration preparation, the raw materials, excipients, and water for injection are added to the mixing tank according to the set amount, and then stirred to completely dissolve the raw materials and excipients and adjust the pH value. After the concentration preparation is completed, water for injection is introduced into the mixing tank to the full volume to achieve dilution preparation.

[0003] In existing technologies, the mixing tank mainly consists of a tank body and a stirring device. The stirring device includes a rotating rod and multiple blades (plate-shaped or rod-shaped blades) for stirring materials. The blades rotate to drive the solution in the tank to perform regular circular motion, thereby stirring and mixing the solution. However, under the action of centrifugal force, the solution will form a large vortex (spinning), resulting in less axial mixing between the upper and lower layers of the solution in the tank. This leads to uneven stirring of the drug solution in the mixing tank (low stirring efficiency, slow speed to achieve uniformity requirements), difficulty in adjusting the pH value of the drug solution (slow adjustment speed and low efficiency), and consequently, low overall efficiency of the mixing operation.

[0004] Therefore, there is a need for an easily adjustable liquid preparation system that can effectively promote axial movement of the liquid within the container and improve the uniformity and efficiency of the liquid mixing. Summary of the Invention

[0005] This application provides an easily adjustable drug solution preparation system, which solves the technical problems in the prior art where the mixing uniformity and efficiency of the drug solution are relatively poor due to insufficient axial mixing between the upper and lower layers of solution in the tank, and the pH adjustment speed is slow and inefficient. The drug solution preparation system achieves the technical effects of effectively promoting axial movement of the drug solution in the tank, effectively improving the mixing uniformity and efficiency of the drug solution, conveniently adjusting the pH value of the drug solution, and having a simple structure.

[0006] This application provides an easily adjustable drug solution preparation system, including a processing chamber, a rotation drive assembly, and a stirring and mixing assembly; the processing chamber is a tank structure with a bottom outlet for drug solution output; the rotation drive assembly is positioned at the top of the processing chamber; the stirring and mixing assembly includes a central support rod and stirring side rods; It also includes auxiliary mixing components and pump-liquid delivery components; A distribution valve is positioned on the bottom outlet; the distribution valve has at least two output ports, one of which is connected to the pump fluid delivery assembly. The central support rod has a built-in liquid channel and an annular groove on its side wall near the top; the bottom of the annular groove is connected to the liquid channel. The stirring rod has a built-in channel that communicates with the liquid channel, and a spray nozzle is provided on the side wall and / or at the end. The auxiliary mixing component includes a through pipe and a water-binding pipe; the through pipe passes through the side wall of the treatment chamber; the water-binding pipe is a vertical rigid round pipe, fixed to the end of the through pipe, sleeved on the central support rod, with an inner diameter 4 to 8 mm larger than the outer diameter of the central support rod, and a length greater than the width of the annular groove, covering the annular groove. The pump-liquid delivery assembly is used to add the liquid medicine and to promote the circulation of the liquid medicine by pumping it.

[0007] Furthermore, the pump fluid delivery assembly includes a connecting pipe, a feed pipe, and a circulating water pump; The connecting pipe connects the distribution valve to the through pipe; There are multiple feed pipes, which are connected to the connecting pipes. The multiple feed pipes are used to transport various raw and auxiliary materials. The circulating water pump is positioned on the connecting pipe and plays the role of pumping the medicine liquid. It is located between the inlet pipe and the through pipe and operates under control. The processing chamber or the connecting pipe is equipped with a sampling port and a pH sensor for detecting pH value.

[0008] Preferably, the spray nozzle is inclined, so the sprayed liquid is sprayed out at an angle, and some of the liquid sprayed from the nozzle will collide together.

[0009] Preferably, it also includes a second auxiliary component; A liquid distribution valve for distributing the liquid flow direction is also positioned on the connecting pipe; The liquid distribution valve is a distribution valve, located between the circulating water pump and the through pipe; An annular groove is also provided on the side wall near the bottom of the central support rod; The second auxiliary component includes a second through pipe and a second water jet pipe; The second through pipe is located near the bottom of the processing chamber and penetrates the processing chamber; The second water jet is fixed to the end of the second through pipe and sleeved on the central support rod. The liquid medicine is delivered to the liquid channel inside the central support rod through the annular groove near the bottom of the central support rod. When in use, the dispensing valve delivers the liquid medicine flowing in the connecting pipe to the through pipe and the second through pipe respectively.

[0010] Preferably, the amount of medicine flowing into the connecting pipe and the second connecting pipe is different, with one having more and the other less.

[0011] Preferably, the central support rod has two built-in liquid channels, and the medicine input from the through pipe and the second through pipe flows to different liquid channels; part of the built-in channel is connected to one of the liquid channels, and the other part of the built-in channel is connected to the other liquid channel.

[0012] Preferably, the cross-section of the central support rod at the annular groove is D-shaped; during the rotation of the central support rod, the amount of liquid in the input liquid channel fluctuates, causing the spray force of the liquid ejected from the spray nozzle to also fluctuate.

[0013] Preferably, the separator valve is also connected to the clean water outlet, so that the clean water can be discharged in a controlled and timely manner; After the drug solution is prepared and discharged from the treatment chamber, clean water is pumped into the treatment chamber through the feed pipe. At the same time, the rotation drive component is controlled to drive the central support rod to rotate at a different speed and the circulating water pump is controlled to run at a different speed. The liquid sprayed from the spray nozzle is sprayed onto the inner wall of the treatment chamber under the influence of pressure difference, inertia and centrifugal force, and part of it bounces back to rinse the stirring and mixing component. The water used for cleaning is recycled by using a pump-liquid delivery system, thus saving water.

[0014] Preferably, the end of the stirring side rod away from the central support rod is fixed with a rod end guide assembly; The rod end guide assembly is disc-shaped or bowl-shaped, and its opening faces the stirring side rod; Some of the spray nozzles on the stirring rod face the rod end guide assembly. After the water jets out from these nozzles, it impacts the rod end guide assembly. Under the guidance of the rod end guide assembly, the water jet forms a water curtain that sprays onto the central support rod and other stirring rods, rinsing them.

[0015] Preferably, a rod guide plate is also fixed on the stirring rod; The guide plate on the rod is disc-shaped or bowl-shaped with a hole in the center. It is fitted and fixed on the stirring side rod. Some of the spray nozzles spray water towards the concave or convex surface of the guide plate on the rod to form a water curtain, which accelerates mixing and cleaning.

[0016] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: By optimizing and improving the structure of existing drug preparation systems, liquid channels and spray nozzles are set on the mixing components located in the treatment chamber (drug preparation tank). While mixing, the drug solution in the treatment chamber is controlled to circulate and be sprayed out through the mixing components, increasing turbulence and thus significantly improving mixing efficiency. This effectively solves the technical problems in existing drug preparation systems, such as poor drug solution uniformity and efficiency due to insufficient axial mixing between the upper and lower layers of solution in the tank, and slow and inefficient pH adjustment. Thus, the drug preparation system achieves the following technical effects: effectively promoting axial movement of the drug solution in the tank, effectively improving the uniformity and efficiency of drug solution mixing, conveniently adjusting the pH value of the drug solution, and simple structure. Attached Figure Description

[0017] Figure 1 This is a simplified overall structural diagram of the drug solution preparation system for easy adjustment in this application; Figure 2 This is a schematic diagram showing the positional relationship between the stirring side rod and the central support rod; Figure 3 This is a schematic diagram showing the positional relationship between the through pipe, the water-binding pipe, and the central support rod. Figure 4 A schematic diagram showing the layout of the annular grooves on the central support rod; Figure 5 This is a schematic diagram of the water jet pipe structure; Figure 6 This is a schematic diagram showing the layout of the liquid spray nozzles on the stirring rod. Figure 7 This is a schematic diagram showing the connection relationship between the second auxiliary component, the processing chamber, and the pump-liquid delivery component; Figure 8 A schematic diagram of a central support rod with an annular groove; Figure 9 This is a schematic diagram showing the positional relationship between the liquid channel and the annular groove; Figure 10 This is a schematic diagram showing the state when the rod end guide assembly is fixed to the end of the stirring rod. Figure 11 A schematic diagram showing the state when the guide plate on the rod is sleeved and fixed on the stirring side rod; Figure 12 This is a schematic diagram of the external structure of the guide plate on the pole.

[0018] In the picture: Processing chamber 100, bottom outlet 110, distribution valve 120, discharge pipe 121, rotation drive assembly 200, central support rod 310, annular groove 311, liquid channel 312, stirring side rod 320, built-in channel 321, spray nozzle 322, through pipe 410, water jet pipe 420, support frame 430, connecting pipe 510, feed pipe 520, on / off valve 521, circulating water pump 530, second auxiliary assembly 600, liquid distribution valve 610, rod end guide assembly 700, rod guide plate 800. Detailed Implementation

[0019] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0020] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Example 1

[0023] like Figures 1 to 6 As shown, the easily adjustable liquid preparation system of this application includes a processing chamber 100, a rotation drive assembly 200, a stirring and mixing assembly, an auxiliary mixing assembly, a pump delivery assembly, a power assembly, and a control unit.

[0024] The processing chamber 100 is a tank structure with a bottom outlet 110 for discharging the liquid medicine. A distribution valve 120 is positioned on the bottom outlet 110 or is directly connected to the distribution valve 120. The distribution valve 120 is controlled to control the flow direction of the liquid medicine. The distribution valve 120 has at least two outlets, one of which is connected to the discharge pipe 121 for discharging the finished liquid medicine, and the other is connected to the pump delivery assembly.

[0025] The rotation drive assembly 200 is positioned at the top of the processing chamber 100 and drives the stirring and mixing assembly to rotate under the coordinated control of the power assembly and the control unit. It is preferably a motor structure.

[0026] The stirring and mixing assembly is used to mix the liquid medicine inside the treatment chamber 100 by stirring, and includes a central support rod 310 and a stirring side rod 320. The central support rod 310 is a vertically arranged rigid round rod, with its top positioned on the rotation drive assembly 200, and rotates around its own axis under the drive of the rotation drive assembly 200. The stirring rod 320 is a horizontal or oblique rigid rod, and there are multiple rods, one end of which is fixed to the side wall of the central support rod 310. The stirring side rod 320 has multiple sets, each set having a different fixed height on the central support rod 310, and each set has one or more units; When the central support rod 310 rotates, the stirring side rod 320 rotates accordingly to stir and mix the medicine liquid; The central support rod 310 has a built-in liquid channel 312 for the flow of medicine, and an annular groove 311 is provided on the side wall near its top; the annular groove 311 is an annular groove, and the bottom of the annular groove 311 is connected to the liquid channel 312 inside the central support rod 310. The stirring rod 320 has a built-in channel 321, and a spray nozzle 322 is provided on the side wall and / or at the end away from its own fixed point; the built-in channel 321 is used for the flow of medicine and is connected to the liquid channel 312; the spray nozzle 322 is connected to the built-in channel 321 and is a circular, polygonal or elongated hole used to spray out medicine and promote the flow of medicine in the treatment chamber 100.

[0027] The auxiliary mixing assembly is used to inject the liquid into the liquid channel 312, and includes a through pipe 410, a water-binding pipe 420, and a support frame 430. The through pipe 410 is a horizontally placed rigid pipe that penetrates the side wall of the treatment chamber 100 and is used to circulate the liquid. The water-binding pipe 420 is a vertically placed rigid circular pipe that is fitted onto the central support rod 310. Its inner diameter is 4 to 8 millimeters larger than the outer diameter of the central support rod 310, and its length (height) is greater than that of the annular groove 312. The groove width of 11 covers the annular groove 311; the water-binding pipe 420 is fixed on the through pipe 410 and communicates with the space enclosed by the water-binding pipe 420; the liquid transported from the through pipe 410 enters the space enclosed by the water-binding pipe 420 and then enters the liquid channel 312 in the central support rod 310 through the annular groove 311; the support frame 430 is a rigid frame that is fixed on the through pipe 410 and also fixed on the inner wall of the processing chamber 100, and plays a supporting role.

[0028] The pump-liquid delivery assembly is used to add liquid medicine and to promote the circulation of liquid medicine by pumping liquid medicine, including a connecting pipe 510, a feed pipe 520 and a circulating water pump 530. The connecting pipe 510 connects the distribution valve 120 to the through pipe 410; there are multiple feed pipes 520 connected to the connecting pipe 510, and the multiple feed pipes 520 are used to transport various raw and auxiliary materials (raw materials, cleaning water, pH adjuster, etc.). A shut-off valve 521 is positioned at the connection between the feed pipe 520 and the connecting pipe 510; the shut-off valve 521 controls whether the liquid flows and the flow rate, and is also a flow valve, which controls the flow rate and the liquid circuit opening and closing under the coordinated control of the control unit and the power component; The circulating water pump 530 is positioned on the connecting pipe 510 and plays the role of pumping the medicine liquid. It is set between the feed pipe 520 and the through pipe 410 and operates under control.

[0029] The processing chamber 100 or the connecting pipe 510 is provided with a sampling port and a pH sensor for detecting pH value.

[0030] The power assembly is used to provide power for the operation of each component of the easily adjustable drug solution preparation system of this application, and the control unit plays the role of controlling the coordinated operation of each component of the easily adjustable drug solution preparation system. Both of these are existing technologies and will not be described in detail here.

[0031] When using the easily adjustable drug solution preparation system of this application: When preparing the solution, the raw materials are controlled to enter the connecting pipe 510 sequentially or simultaneously from the feed pipe 520 in proportion. Under the pumping of the circulating water pump 530, they pass through the through pipe 410, the liquid channel 312 and the built-in channel 321, and finally spray out from the spray nozzle 322 into the internal space of the treatment chamber 100 (some raw materials are sprayed out from the gap between the water pipe 420 and the central support rod 310). After the raw materials enter the processing chamber 100, the rotation drive component 200 is controlled to drive the stirring and mixing component to rotate continuously. The medicine solution to be mixed is discharged from the distribution valve 120 under the influence of gravity and re-enters the pumping and conveying component, and then sent back into the internal space of the processing chamber 100. The rotation of the stirring and mixing component stirs and mixes the medicine solution, and the pumping and conveying component pumps the medicine solution to quickly and efficiently prepare the medicine solution (completing concentrated and diluted preparation). After mixing, the pH value of the mixed medicine solution is tested. During the circulation pumping process of the medicine solution, a pH value adjuster is added as needed. The pH value is adjusted quickly and efficiently by using the stirring action in conjunction with the circulation and spraying of the medicine solution. After the preparation is completed, the finished medicine solution is discharged into the discharge pipe 121 to enter the next process.

[0032] Preferably, the spray nozzle 322 is inclined, and the sprayed liquid is sprayed out at an angle. Some of the liquid sprayed from the spray nozzle 322 will collide together, increasing turbulence and accelerating mixing.

[0033] Preferably, during mixing, the liquid medicine can also be pumped from the spray nozzle 322 into the built-in channel 321 and the liquid channel 312, and then into the processing chamber 100 through the distribution valve 120 for mixing.

[0034] Preferred, such as Figure 7 As shown, the easily adjustable liquid preparation system of this application also includes a second auxiliary component 600; a liquid distribution valve 610 for distributing the liquid flow direction is also positioned on the connecting pipe 510; the liquid distribution valve 610 is a distribution valve and is positioned between the circulating water pump 530 and the through pipe 410; an annular groove 311 is also provided on the side wall near the bottom of the central support rod 310; The structure of the second auxiliary component 600 is the same as that of the auxiliary mixing component, and it also includes a through pipe 410 and a water-binding pipe 420. For ease of description and understanding, the through pipe 410 and the water-binding pipe 420 of the second auxiliary component 600 are referred to as the second through pipe and the second water-binding pipe, respectively. The second through pipe is located near the bottom of the processing chamber 100 and passes through the processing chamber 100. The second water-binding pipe is fixed to the end of the second through pipe and sleeved on the central support rod 310. The liquid medicine is transported to the liquid channel 312 inside the central support rod 310 through the annular groove 311 near the bottom of the central support rod 310. When the liquid dispensing valve 610 is used, it transports the liquid medicine flowing in the connecting pipe 510 to the through pipe 410 and the second through pipe, so that the liquid medicine is mixed in the liquid channel 312 and the built-in channel 321, increasing the turbulence of the liquid medicine and improving the preparation efficiency of the liquid medicine.

[0035] Preferably, the amount of medicine flowing into the connecting pipe 410 and the second connecting pipe is different, with one having more and the other less.

[0036] Preferably, the dispensing valve 610 dynamically adjusts the amount of medicine flowing into the connecting pipe 410 and the second connecting pipe under the control of the control unit.

[0037] Preferably, the central support rod 310 has two built-in liquid channels 312, and the liquid medicine input from the through pipe 410 and the second through pipe flows to different liquid channels 312; part of the built-in channel 321 is connected to one of the liquid channels 312, and the other part of the built-in channel 321 is connected to the other liquid channel 312.

[0038] Preferred, such as Figure 8 and Figure 9As shown, the cross-section of the central support rod 310 at the annular groove 311 is D-shaped (ignoring the liquid channel 312, the cross-section is D-shaped); during the rotation of the central support rod 310, the amount of medicine entering the liquid channel 312 fluctuates. Without frequently adjusting the operation of the circulating water pump 530 and the liquid distribution valve 610, the spraying force of the medicine sprayed from the spray nozzle 322 also fluctuates, further increasing the turbulence of the medicine and thus further improving the mixing efficiency.

[0039] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages: This invention solves the technical problems in existing technologies, such as poor uniformity and efficiency of drug solution mixing due to insufficient axial mixing between the upper and lower layers of solution in the tank, and slow and inefficient pH adjustment. It achieves the following technical effects: effectively promotes axial movement of the drug solution in the tank, effectively improves the uniformity and efficiency of drug solution mixing, allows for convenient pH adjustment, and has a simple structure.

[0040] Example 2

[0041] To further enhance the practicality and operational efficiency of the easily adjustable drug preparation system of this application, and to improve the cleaning efficiency of the treatment chamber 100 and its internal components after drug preparation, the easily adjustable drug preparation system of this application embodiment also has a self-cleaning mode; after entering the self-cleaning mode, it can complete the cleaning efficiently and with water-saving features; specifically: The liquid separator 610 is also connected to the clean water outlet, which can controllably and timely discharge the clean water. After the drug solution is prepared and discharged from the treatment chamber 100, cleaning water is pumped into the treatment chamber 100 through the feed pipe 520. At the same time, the rotation drive component 200 drives the central support rod 310 to rotate at a variable speed and controls the circulating water pump 530 to run at a variable speed. The liquid sprayed from the spray nozzle 322 is sprayed onto the inner wall of the treatment chamber 100 under the influence of pressure difference, inertia and centrifugal force, and part of it bounces back to rinse the mixing component. Multiple components (pumps, valves, motors, etc.) work together to continuously change the spray volume and spray direction during the cleaning process. The cleaning water is circulated by the pump-liquid delivery component to achieve water saving. During the flow of cleaning water, the auxiliary mixing component, pump-liquid delivery component, second auxiliary component 600 and treatment chamber 100 are rinsed clean. After the cleaning water is circulated multiple times, it is discharged and then clean water is added again to repeatedly clean the drug solution preparation system. The process of inlet and outlet is repeated multiple times to achieve the cleaning requirements.

[0042] Preferred, such as Figure 10As shown, a rod end guide assembly 700 is fixed to the end of the stirring rod 320 away from the central support rod 310. The rod end guide assembly 700 is disc-shaped or bowl-shaped, and its opening faces the stirring rod 320. Some of the spray nozzles 322 on the stirring rod 320 face the rod end guide assembly 700. After the water jet from these nozzles 322 impacts the rod end guide assembly 700, the water jet forms a water curtain under the guidance of the rod end guide assembly 700 and sprays it onto the central support rod 310 and other stirring rods 320 to rinse them. When mixing the medicine, the presence of the rod end guide assembly 700 can also increase the turbulence of the medicine.

[0043] Preferred, such as Figure 11 and Figure 12 As shown, a rod guide plate 800 is also fixed on the stirring rod 320; the rod guide plate 800 is disc-shaped or bowl-shaped with a hole in the center, and is sleeved and fixed on the stirring rod 320. Part of the spray nozzles 322 spray water toward the concave or convex surface of the rod guide plate 800 to form a water curtain, which accelerates mixing and cleaning.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An easily adjustable liquid preparation system, comprising a processing chamber (100), a rotation drive assembly (200), and a stirring and mixing assembly; the processing chamber (100) is a tank structure with a bottom outlet (110) for discharging liquid; the rotation drive assembly (200) is positioned at the top of the processing chamber (100); the stirring and mixing assembly comprises a central support rod (310) and a stirring side rod (320); Its features are: It also includes auxiliary mixing components and pump-liquid delivery components; A distribution valve (120) is positioned on the bottom outlet (110); the distribution valve (120) has at least two output ports, one of which is connected to the pump fluid delivery assembly; The central support rod (310) has a built-in liquid channel (312) and an annular groove (311) on its side wall near the top; the bottom of the annular groove (311) is connected to the liquid channel (312); The stirring rod (320) has a built-in channel (321) that communicates with the liquid channel (312), and a spray nozzle (322) is provided on the side wall and / or at the end. The auxiliary mixing component includes a through pipe (410) and a water-binding pipe (420); the through pipe (410) passes through the side wall of the treatment chamber (100); the water-binding pipe (420) is a vertical rigid round pipe, fixed at the end of the through pipe (410), sleeved on the central support rod (310), with an inner diameter 4 to 8 mm larger than the outer diameter of the central support rod (310), and a length greater than the width of the annular groove (311), covering the annular groove (311); The pump-liquid delivery assembly is used to add the liquid medicine and to promote the circulation of the liquid medicine by pumping it.

2. The easily adjustable drug solution preparation system as described in claim 1, characterized in that: The pump fluid delivery assembly includes a connecting pipe (510), a feed pipe (520), and a circulating water pump (530); The connecting pipe (510) connects the distribution valve (120) to the through pipe (410); There are multiple feed pipes (520), which are connected to the connecting pipe (510). The multiple feed pipes (520) are used to transport various raw and auxiliary materials respectively. The circulating water pump (530) is positioned on the connecting pipe (510) and plays the role of pumping the medicine liquid. It is set between the feed pipe (520) and the through pipe (410) and is operated under control. The processing chamber (100) or the connecting pipe (510) is provided with a sampling port, and a pH sensor for detecting pH value is also provided.

3. The easily adjustable drug solution preparation system as described in claim 1, characterized in that: The spray nozzle (322) is set at an angle, and the sprayed liquid is sprayed out at an angle. Some of the liquid sprayed from the spray nozzle (322) will collide together.

4. The easily adjustable drug solution preparation system as described in claim 2, characterized in that: It also includes a second auxiliary component (600); A liquid distribution valve (610) for distributing the liquid flow direction is also positioned on the connecting pipe (510); The liquid distribution valve (610) is a distribution valve and is located between the circulating water pump (530) and the through pipe (410); An annular groove (311) is also provided on the side wall near the bottom of the central support rod (310); The second auxiliary component (600) includes a second through pipe and a second water jet pipe; The second through pipe is located near the bottom of the processing chamber (100) and penetrates the processing chamber (100); The second water pipe is fixed to the end of the second through pipe and sleeved on the central support rod (310). The liquid medicine is delivered to the liquid channel (312) inside the central support rod (310) through the annular groove (311) near the bottom of the central support rod (310). When in use, the liquid separator (610) delivers the liquid flowing in the connecting pipe (510) to the through pipe (410) and the second through pipe respectively.

5. The easily adjustable drug solution preparation system as described in claim 4, characterized in that: The amount of medicine flowing into the connecting pipe (410) and the second connecting pipe is different, with one having more and the other less.

6. The easily adjustable drug solution preparation system as described in claim 4, characterized in that: The central support rod (310) has two built-in liquid channels (312), and the liquid medicine input from the through pipe (410) and the second through pipe flows to different liquid channels (312); part of the built-in channel (321) is connected to one of the liquid channels (312), and the other part of the built-in channel (321) is connected to the other liquid channel (312).

7. The easily adjustable drug solution preparation system as described in claim 1, characterized in that: The cross-section of the central support rod (310) at the annular groove (311) is D-shaped; during the rotation of the central support rod (310), the amount of liquid in the input liquid channel (312) fluctuates, which causes the spraying force of the liquid sprayed from the spray nozzle (322) to also fluctuate.

8. The easily adjustable drug solution preparation system as described in any one of claims 2 to 7, characterized in that: The separator valve (610) is also connected to the clean water outlet, and the clean water is discharged in a controlled and timely manner. After the liquid preparation is completed and discharged from the treatment chamber (100), clean water is pumped into the treatment chamber (100) through the feed pipe (520). At the same time, the rotation drive component (200) is controlled to drive the central support rod (310) to rotate at different speeds and the circulating water pump (530) is controlled to run at different speeds. The liquid sprayed from the spray nozzle (322) is sprayed onto the inner wall of the treatment chamber (100) under the influence of pressure difference, inertia and centrifugal force, and part of it bounces back to rinse the stirring and mixing component. The water used for cleaning is recycled by using a pump-liquid delivery system, thus saving water.

9. The easily adjustable drug solution preparation system as described in claim 8, characterized in that: The end of the stirring rod (320) away from the central support rod (310) is fixed with a rod end guide assembly (700); The rod end guide assembly (700) is disc-shaped or bowl-shaped, and its opening faces the stirring side rod (320); Some of the spray nozzles (322) on the stirring side rod (320) face the rod end guide assembly (700). After the water jet from these nozzles (322) impacts the rod end guide assembly (700), the water jet forms a water curtain under the guidance of the rod end guide assembly (700) and sprays towards the central support rod (310) and other stirring side rods (320) to rinse them.

10. The easily adjustable drug solution preparation system as described in claim 8, characterized in that: A rod guide plate (800) is also fixed on the stirring rod (320); The guide plate (800) on the rod is disc-shaped or bowl-shaped with a hole in the center. It is fitted and fixed on the stirring side rod (320). Some of the spray nozzles (322) spray water toward the concave or convex surface of the guide plate (800) on the rod to form a water curtain, which accelerates mixing and cleaning.

Images