Device for storing a sterile solution

Abstract

The utility model provides a device for storing sterile solution, which comprises a storage barrel, a barrel cover, an air inlet and outlet pipeline and a solution inlet and outlet pipeline, the barrel cover comprises a two-way cover and a two-way, two joint groups are arranged on the two-way, one end of the air inlet and outlet pipeline is connected with one joint group, and the other end of the air inlet and outlet pipeline is connected with external equipment through a first gyro filter; the solution inlet and outlet pipeline comprises an in-barrel pipe section and an out-barrel pipe section, one end of the in-barrel pipe section is located at the bottom of the storage barrel, and the other end of the in-barrel pipe section is connected with the other connector set. One end of the barrel outer pipe section is connected with the other connector set, and a thermoplastic pipe at the other end of the barrel outer pipe section is connected with an external thermoplastic pipe through a pipe connecting machine. Reliable sealing connection of the storage barrel, the air inlet and outlet pipeline and the solution inlet and outlet pipeline is achieved through the two-way cover, sterile storage of solution can be achieved through the gyro filter, the thermoplastic pipe is connected with an external thermoplastic pipe through the pipe connecting machine, sterile taking of the solution can be achieved, the solution can be transferred to other areas more easily, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of biotechnology industry, and more specifically, to a device for storing sterile solutions. Background Technology

[0002] In the biopharmaceutical industry, the transfer and storage of sterile solutions are key to ensuring product quality. Currently, the industry uses pipeline-based aseptic transfer and container-based aseptic transfer. Pipeline-based aseptic transfer is suitable for the transfer of large-volume solutions, such as directly transporting culture medium from a preparation tank to a bioreactor through a fixed pipeline system. Container-based aseptic transfer is suitable for the transfer, storage, and packaging of semi-finished products, such as aseptically connecting semi-finished products from a storage container to the inlet of an emulsification tank in vaccine production.

[0003] However, traditional pipeline systems are complex and have high maintenance costs, while container transfer solutions have significant shortcomings in terms of sealing reliability and ease of operation. Therefore, a device that is simple in structure, has good sealing, and is easy to transfer is essential.

[0004] Patent document CN220263913U discloses a solution storage device, in which a storage tank has a round cover at one end; the round cover is rotatably connected to the storage tank; a round hole is opened in the middle of the round cover; a rotating rod is slidably connected to the middle of the round hole; an arc-shaped scraper is fixedly connected to the middle of the rotating rod; multiple sets of arc-shaped scrapers are provided in the middle of the rotating rod; a slot is opened in the middle of the round cover; a support rod is provided in the middle of the rotating rod; the support rod is fixedly connected to the rotating rod; and the support rod is slidably connected to the slot. The advantage of this solution is that when the solution inside the storage tank needs to be taken out, the arc-shaped scraper can stir the bottom of the solution before opening the round cover, thereby reducing the occurrence of excessive precipitation at the bottom of the storage tank during the solution taking process, thus reducing the impact of precipitation on the drug's properties. When rotating the rotating rod to stir the solution, the round cover can be removed from the end of the storage tank at the same time, thus facilitating the taking out of the solution.

[0005] However, the above-mentioned methods cannot be used to store sterile solutions. Currently, there is no device that is convenient for storing sterile solutions, can be reused at low cost, and can also prevent the risk of solution contamination. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a device for storing sterile solutions.

[0007] The device for storing sterile solution according to the present invention includes a storage tank, a tank lid, an inlet and outlet air pipe, and an inlet and outlet solution pipe, wherein the storage tank is used to store sterile solution.

[0008] The barrel lid includes a two-way cap and a two-way connector, with the two-way cap installed at the top opening of the storage barrel;

[0009] The middle part of the two-way cover is a hollow structure. The two-way is installed inside the hollow structure. Two sets of connector groups are provided on the two-way. Each set of connector groups includes two interconnected barb connectors that are respectively located at the top and bottom of the two-way.

[0010] One end of the inlet and outlet air pipe is connected to the barbed connector at the top of the two-way connector in a set of connectors, and is fixed externally by a hose clamp. The other end of the inlet and outlet air pipe is connected to an external device through the first gyro filter, and is fixed externally by a hose clamp.

[0011] The inlet and outlet solution pipeline includes an inner pipe section and an outer pipe section. One end of the inner pipe section is located at the bottom of the storage tank, and the other end of the inner pipe section is connected to the barbed connector located at the bottom of the two-way connector in another set of connectors.

[0012] One end of the outer pipe section is connected to the barbed connector at the top of the two-way connector in another set of connectors, and the other end of the outer pipe section is connected to the external sterile pipeline through the pipe connection machine.

[0013] Preferably, the bucket lid further includes an O-ring and a sealing ring;

[0014] The middle part of the two-way valve is provided with a limiting protrusion along the circumference, and the upper surface of the limiting protrusion overlaps with the lower surface of the hollow structure edge of the two-way valve cover.

[0015] The outer edge of the two-way valve is provided with an O-ring mounting groove and a sealing ring mounting position along the circumferential direction. The O-ring mounting groove is located above the limiting protrusion. The O-ring is installed in the O-ring mounting groove, and the outer edge of the O-ring abuts against the inner edge of the hollow structure of the two-way valve cover.

[0016] The sealing ring mounting position is located below the limiting protrusion, the sealing ring is installed in the sealing ring mounting position, and the sealing ring abuts against the top opening of the storage tank.

[0017] Preferably, the air inlet and outlet pipelines include a first silicone tube and a first gyroscope filter;

[0018] One end of the first silicone tube is connected to the barbed connector at the top of the two-way connector in a set of connectors, and the other end of the first silicone tube is connected to an external device through the first gyroscope filter.

[0019] Preferably, the inlet and outlet air pipes further include pipe clamps, and the pipe clamps are provided with pipe clamping ports extending axially;

[0020] The pipe clamping port includes a first opening end and a second opening end, and the first silicone tube is clamped in the first opening end or the second opening end;

[0021] The radial opening of the first opening end is greater than the radial dimension of the first silicone tube. When clamped at the first opening end, the first silicone tube does not deform. The radial opening of the second opening end is less than the radial dimension of the first silicone tube. When clamped at the second opening end, the first silicone tube is compressed.

[0022] Preferably, the storage tank has graduations on its body to display the solution volume, and a handle is provided on the storage tank for carrying.

[0023] Preferably, the inlet and outlet solution pipeline includes a second silicone tube, a third silicone tube, a straight connector, a thermoplastic tube, and a second gyro filter;

[0024] The second silicone tube serves as an inner tube section of the barrel. One end of the second silicone tube is located at the bottom of the storage barrel, and the other end of the second silicone tube is connected to the barbed connector located at the bottom of the two-way connector in another set of connectors.

[0025] The third silicone tube and the thermoplastic tube serve as the outer pipe section of the barrel. One end of the third silicone tube is connected to the barbed connector located at the top of the two-way connector in another set of connectors. The other end of the third silicone tube is connected to one end of the thermoplastic tube through a straight connector. The other end of the thermoplastic tube can be connected to an external pipeline through the second gyro filter.

[0026] Preferably, the inlet and outlet solution pipelines further include a speed regulator, which is disposed on the third silicone tube;

[0027] The speed controller is equipped with rollers for adjusting the opening of the third silicone tube by rotating the rollers.

[0028] Preferably, both ends of the straight section are provided with barbs, and the third silicone tube and the thermoplastic tube are connected by the barbs respectively. The barbs prevent the third silicone tube and the thermoplastic tube from loosening and leaking.

[0029] Preferably, one end of the third silicone tube is fixed by an external hose clamp, and the other end of the thermoplastic tube is fixed by an external hose clamp.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] This utility model device has a compact structure. By setting a two-way cover, it achieves a reliable sealed connection between the storage tank and the inlet / outlet air pipeline and the inlet / outlet solution pipeline. Furthermore, the gyroscope filter enables aseptic storage of the solution and ensures aseptic retrieval, solving the difficulty of transferring the solution to other areas and improving work efficiency. Attached Figure Description

[0032] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0033] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0034] Figure 2 This is a schematic diagram of the structure of the bucket lid in this utility model;

[0035] Figure 3 This is a top view of the structure of the bucket lid in this utility model;

[0036] Figure 4 This is a schematic diagram of the structure of the two-way cover in this utility model;

[0037] Figure 5 This is a schematic diagram of the two-way valve in this utility model;

[0038] Figure 6 This is a schematic diagram of the structure of the O-ring in this utility model;

[0039] Figure 7 This is a schematic diagram of the pipe clamp structure of this utility model;

[0040] Figure 8 This is a schematic diagram of the sealing ring structure in this utility model;

[0041] Figure 9 This is a schematic diagram of the speed regulator in this utility model;

[0042] Figure 10 This is a schematic diagram of the straight-through structure in this utility model.

[0043] The diagram shows:

[0044] Bucket lid 1, second silicone tube 301

[0045] Two-way cap 101, third silicone tube 302

[0046] Two-way 102 speed controller 303

[0047] O-ring 103 straight-through 304

[0048] 104 barbed connector, 305 hose clamp

[0049] 105 sealing ring, 306 thermoplastic tubing

[0050] Inlet / outlet pipe 2 Second gyroscope filter 307

[0051] First silicone tube 201, roller 308

[0052] Pipe clamp 202 Storage bucket 4

[0053] First gyroscope filter 203 Handle 401

[0054] Solution inlet / outlet pipe 3, graduation 402 Detailed Implementation

[0055] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0056] This application discloses a device for storing sterile solutions. The main body of the device has a compact structure. A two-way cover is used to achieve a reliable sealed connection between the storage tank and the inlet / outlet air pipes and the inlet / outlet solution pipes. Furthermore, a gyroscope filter can achieve sterile storage of the solution and ensure sterile retrieval. This solves the difficulty of transferring the solution to other areas and improves work efficiency.

[0057] According to the device for storing sterile solutions provided by this utility model, such as Figure 1 As shown, it includes a storage tank 4, a lid 1, an inlet / outlet air pipe 2, and an inlet / outlet solution pipe 3. The storage tank 4 is used to store sterile solutions.

[0058] The barrel lid 1 includes a two-way cover 101 and a two-way connector 102. The two-way cover 101 is installed at the top opening of the storage barrel 4. The middle part of the two-way cover 101 is hollow, and the two-way connector 102 is installed inside the hollow structure. The two-way connector 102 is provided with two sets of connector groups. Each set of connector groups includes two interconnected barb connectors 104 respectively located at the top and bottom of the two-way connector 102. The internal thread of the two-way cover 101 matches the thread of the barrel opening of the storage barrel 4.

[0059] In a preferred example, such as Figures 2-6 as well as Figure 8 As shown, the bucket lid 1 also includes an O-ring 103 and a sealing ring 105; a limiting protrusion is provided circumferentially in the middle of the two-way valve 102, and the upper surface of the limiting protrusion overlaps with the lower surface of the hollow structure edge of the two-way valve lid 101; an O-ring mounting groove and a sealing ring mounting position are provided circumferentially along the outer edge of the two-way valve 102, the O-ring mounting groove is located above the limiting protrusion, the O-ring 103 is installed in the O-ring mounting groove, and the outer edge of the O-ring 103 abuts against the inner edge of the hollow structure of the two-way valve lid 101; the sealing ring mounting position is located below the limiting protrusion, the sealing ring 105 is installed in the sealing ring mounting position, and the sealing ring 105 abuts against the top opening of the storage bucket 4.

[0060] The installation steps for bucket lid 1 are as follows: Figure 5As shown, first install the two-way valve 102 onto the two-way valve cover 101, then install the O-ring 103 onto point C of the two-way valve 102 to prevent the two-way valve 102 from loosening and falling off. The sealing ring 105 is at the bottom of the two-way valve 102, installed at point D of the two-way valve 102, and is used to seal the storage tank 4 and the two-way valve 102. The outer diameter of the sealing ring 105 is slightly larger than the inner diameter of the two-way valve cover 101, and the inner diameter of the sealing ring 105 is slightly larger than the inner diameter of the opening of the storage tank 4.

[0061] One end of the inlet / outlet pipe 2 is connected to the barbed connector 104 located at the top of the two-way connector 102 in a set of connectors, and the other end of the inlet / outlet pipe 2 is connected to an external device through the first gyro filter 203. Specifically, the inlet / outlet pipe 2 includes a first silicone tube 201 and a first gyro filter 203; one end of the first silicone tube 201 is connected to the barbed connector 104 located at the top of the two-way connector 102 in a set of connectors, and the other end of the first silicone tube 201 is connected to an external device through the first gyro filter 203. The inlet / outlet pipe 2 is used to vent air when collecting the solution, and pressurizes the storage tank 4 through the first gyro filter 203 when discharging the solution.

[0062] In a preferred example, such as Figure 7 As shown, the inlet and outlet air pipes 2 also include pipe clamps 202, which are provided with pipe clamping ports extending axially. The pipe clamping ports include a first opening end and a second opening end, and the first silicone tube 201 is clamped in the first opening end or the second opening end. The radial opening of the first opening end is greater than the radial dimension of the first silicone tube 201. When clamped in the first opening end, the first silicone tube 201 does not deform. The radial opening of the second opening end is less than the radial dimension of the first silicone tube 201. When clamped in the second opening end, the first silicone tube 201 is compressed.

[0063] The inlet and outlet solution pipeline 3 includes an inner pipeline section and an outer pipeline section. One end of the inner pipeline section is located at the bottom of the storage tank 4, and the other end of the inner pipeline section is connected to the barbed connector 104 located at the bottom of the two-way connector 102 in another set of connectors. One end of the outer pipeline section is connected to the barbed connector 104 located at the top of the two-way connector 102 in another set of connectors, and the other end of the outer pipeline section is connected to an external sterile pipeline via a pipe connecting machine.

[0064] Specifically, the inlet and outlet solution pipeline 3 includes a second silicone tube 301, a third silicone tube 302, a straight connector 304, a thermoplastic tube 306, and a second gyro filter 307; the second silicone tube 301 serves as an inner pipe section of the tank, with one end of the second silicone tube 301 located at the bottom of the storage tank 4, and the other end of the second silicone tube 301 connected to the barbed connector 104 located at the bottom of the two-way connector 102 in another set of connectors; the second silicone tube 301 serves as a guide to prevent air bubbles from being generated in the tank when collecting the solution; when outputting the solution, the first gyro filter 203 pressurizes the storage tank 4, and the first silicone tube 301 outputs the solution outward; the first silicone tube 301 at the bottom of the tank has an inverted triangle to prevent it from being sucked onto the bottom of the tank.

[0065] The third silicone tube 302 and the thermoplastic tube 306 serve as the outer pipe sections of the barrel. One end of the third silicone tube 302 is connected to the barbed connector 104 located at the top of the two-way connector 102 in another set of connectors. The other end of the third silicone tube 302 is connected to one end of the thermoplastic tube 306 through the straight connector 304. The other end of the thermoplastic tube 306 is connected to the second gyro filter 307. The thermoplastic tube 306 is connected to the external sterile pipeline through a pipe fitting machine.

[0066] In a preferred example, such as Figure 9 As shown, the inlet and outlet solution pipeline 3 also includes a speed regulator 303, which is installed on the third silicone tube 302; the speed regulator 303 is provided with a roller 308, which is used to adjust the opening of the third silicone tube 302 by rotating the roller 308.

[0067] In a preferred example, such as Figure 10 As shown, both ends of the straight tube 304 are provided with barbs, which connect the third silicone tube 302 and the thermoplastic tube 306 respectively to prevent the third silicone tube 302 and the thermoplastic tube 306 from becoming loose. One end of the third silicone tube 302 connected to the straight tube 304 is fixed by an external hose clamp 305, and the other end of the thermoplastic tube 306 connected to the straight tube 304 is fixed by an external hose clamp 305.

[0068] The storage container 4 is used to store sterile solutions. In a preferred embodiment, the storage container 4 has a scale 402 on its body to accurately display the solution volume; the storage container 4 has two handles 401 on its top for easy handling.

[0069] In a preferred embodiment, both the hose clamp 305 and the two-way valve 102 are made of 316L stainless steel. The storage tank 4 is made of polypropylene or polytetrafluoroethylene, preferably polypropylene. The sealing ring 105 and the O-ring 103 are made of polytetrafluoroethylene or rubber, preferably polytetrafluoroethylene. The first silicone tube 201, the second silicone tube 301, and the third silicone tube 302 have certain elasticity, wear resistance, chemical corrosion resistance, can withstand certain pressure, have good airtightness, and are resistant to high temperatures; they are made of silicone. All components of the storage device are resistant to high temperature and high pressure, are resistant to acids and alkalis, and are reusable. The first gyro filter 203 and the second gyro filter 307 are air-pass sterilization filters with a pore size of 0.22 μm.

[0070] The working principle of this utility model is as follows:

[0071] Before storing liquid, each component of the storage device is cleaned and assembled, and then sterilized offline, usually in a pulsed vacuum sterilizer. The first gyroscope filter 203 and the second gyroscope filter 307 can maintain a balance with the internal pressure of the pulsed vacuum sterilizer, effectively preventing the storage tank 4 from being sucked flat.

[0072] Receiving solution: Thermoplastic tube 307 is connected to other sterile thermoplastic tubes using a connecting machine. One end of the other sterile thermoplastic tubes also has a gyroscope filter. After welding, there is a section of sterile thermoplastic tube with gyroscope filters at both ends. The sterile solution is stored in storage tank 4 through inlet / outlet solution pipeline 3. After storage, thermoplastic tube 307 is welded again to the sterile thermoplastic tube with gyroscope filters at both ends using a connecting machine. Finally, one end of thermoplastic tube 307 still has a sterile gyroscope filter.

[0073] Pressurizing storage tank 4 to store sterile solution under slight positive pressure: Speed ​​controller 303, through rollers, alters the elastic deformation of the silicone tube, blocking or regulating the solution flow rate. Speed ​​controller 303 is installed on the third silicone tube 302. Adjusting the rollers of speed controller 303 to their minimum position isolates the gas flow through the third silicone tube 302. A tube clamp 202 is installed approximately at the middle of the first silicone tube 201 and placed at point A of the clamp 202. As needed, pressurizing storage tank 4 is achieved through the first gyro filter 203. Pressurization is stopped when the pressure reaches slight positive pressure, and the first silicone tube 201 is placed at point B of the clamp 202, thus creating slight positive pressure in storage tank 4. This effectively prevents the risk of contamination of the sterile solution. Finally, the third silicone tube 302 and thermoplastic tube 307 are wound around the top of storage tank 4 to prevent wrinkles.

[0074] Solution output: The thermoplastic tube 306 is connected to other sterile thermoplastic tubes via a connector and pressurizes the storage tank 4 to output liquid through the first gyro filter 203.

[0075] All components in this invention are resistant to high temperature and high pressure, as well as acid and alkali. After sterilization by offline individual sterilization, the entire device is guaranteed to be sterile and reusable.

[0076] This invention utilizes a pipe-connecting machine to aseptically weld thermoplastic tubing, enabling the aseptic storage of solutions into a storage tank. When the solution is used, aseptic retrieval is guaranteed. During solution storage, the storage tank maintains a slight positive pressure, eliminating the risk of contamination of the stored aseptic liquid.

[0077] The device in this invention has a compact structure, solves the difficulty of transferring the solution to other areas, and improves work efficiency.

[0078] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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.

[0079] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A device for storing sterile solutions, characterized in that, It includes a storage tank (4), a lid (1), an inlet and outlet air pipe (2), and an inlet and outlet solution pipe (3), wherein the storage tank (4) is used to store sterile solution; The barrel lid (1) includes a two-way cover (101) and a two-way (102), and the two-way cover (101) is installed at the top opening of the storage barrel (4); The middle part of the two-way cover (101) is a hollow structure. The two-way (102) is installed inside the hollow structure. The two-way (102) is provided with two sets of connector groups. Each set of connector groups includes two interconnected barb connectors (104) respectively located at the top and bottom of the two-way (102). One end of the air inlet / outlet pipe (2) is connected to the barbed connector (104) located at the top of the two-way (102) in a set of connectors, and the other end of the air inlet / outlet pipe (2) is connected to an external device through the first gyro filter (203); The inlet and outlet solution pipeline (3) includes an inner pipe section and an outer pipe section. One end of the inner pipe section is located at the bottom of the storage tank (4), and the other end of the inner pipe section is connected to the barbed connector (104) located at the bottom of the two-way connector (102) in another set of connectors. One end of the outer pipe section is connected to the barbed connector (104) located at the top of the two-way connector (102) in another set of connectors, and the other end of the outer pipe section, the thermoplastic pipe (306), is connected to the external pipeline through the pipe connection machine.

2. The apparatus for storing sterile solutions according to claim 1, characterized in that, The bucket lid (1) also includes an O-ring (103) and a sealing ring (105); The middle part of the two-way (102) is provided with a limiting protrusion along the circumference, and the upper surface of the limiting protrusion overlaps with the lower surface of the hollow structure edge of the two-way cover (101). The outer edge of the two-way (102) is provided with an O-ring mounting groove and a sealing ring mounting position along the circumferential direction. The O-ring mounting groove is located above the limiting protrusion. The O-ring (103) is installed in the O-ring mounting groove, and the outer edge of the O-ring (103) abuts against the inner edge of the hollow structure of the two-way cover (101). The sealing ring mounting position is located below the limiting protrusion, the sealing ring (105) is installed in the sealing ring mounting position, and the sealing ring (105) abuts against the top opening of the storage tank (4).

3. The apparatus for storing sterile solutions according to claim 1, characterized in that, The air inlet / outlet pipe (2) includes a first silicone tube (201) and a first gyroscope filter (203); One end of the first silicone tube (201) is connected to the barbed connector (104) located at the top of the two-way connector (102) in a set of connectors, and the other end of the first silicone tube (201) is connected to an external device through the first gyroscope filter (203).

4. The apparatus for storing sterile solutions according to claim 3, characterized in that, The air inlet and outlet pipe (2) also includes a pipe clamp (202), which is provided with a pipe clamping port extending along the axial direction; The pipe clamping port includes a first opening end and a second opening end, and the first silicone tube (201) is clamped in the first opening end or the second opening end; The radial opening of the first opening end is greater than the radial dimension of the first silicone tube (201). When clamped at the first opening end, the first silicone tube (201) does not deform. The radial opening of the second opening end is less than the radial dimension of the first silicone tube (201). When clamped at the second opening end, the first silicone tube (201) is compressed.

5. The apparatus for storing sterile solutions according to claim 1, characterized in that, The storage tank (4) is provided with a scale (402) on its body to display the amount of solution, and a handle (401) is provided on the storage tank (4) for carrying.

6. The apparatus for storing sterile solutions according to claim 1, characterized in that, The solution inlet / outlet pipeline (3) includes a second silicone tube (301), a third silicone tube (302), a straight connector (304), a thermoplastic tube (306), and a second gyro filter (307); The second silicone tube (301) serves as an inner tube section of the barrel. One end of the second silicone tube (301) is located at the bottom of the storage barrel (4), and the other end of the second silicone tube (301) is connected to the barbed connector (104) located at the bottom of the two-way connector (102) in another set of connectors. The third silicone tube (302) and the thermoplastic tube (306) serve as the outer pipe section of the barrel. One end of the third silicone tube (302) is connected to the barbed connector (104) located at the top of the two-way connector (102) in another set of connectors. The other end of the third silicone tube (302) is connected to one end of the thermoplastic tube (306) through the straight connector (304). The other end of the thermoplastic tube (306) is connected to the second gyroscope filter (307).

7. The apparatus for storing sterile solutions according to claim 6, characterized in that, The inlet and outlet solution pipeline (3) also includes a speed regulator (303), which is installed on the third silicone tube (302); The speed regulator (303) is equipped with a roller (308) for adjusting the opening of the third silicone tube (302) by rotating the roller (308).

8. The apparatus for storing sterile solutions according to claim 6, characterized in that, Both ends of the straight tube (304) are provided with barbs, and the third silicone tube (302) and the thermoplastic tube (306) are respectively connected through the barbs.

9. The apparatus for storing sterile solutions according to claim 6, characterized in that, One end of the third silicone tube (302) connected to the straight section (304) is fixed by a hose clamp (305) located on the outside, and one end of the thermoplastic tube (306) connected to the straight section (304) is fixed by a hose clamp (305) located on the outside.

Images