Liquid buffer instrument

Abstract

The utility model discloses a liquid buffer instrument, which relates to the technical field of liquid buffer instruments and comprises a buffer cylinder, a liquid inlet pipe and a communicating pipe are arranged on the upper side of the buffer cylinder and communicated with the inside of the buffer cylinder, an air inlet pipe is fixedly connected to the upper side of the communicating pipe, and an emptying pipe is fixedly connected to the outer side of the air inlet pipe. The air inlet pipe is communicated with the emptying pipe, so that the problems that the subsequent normal use of the liquid is influenced and the yield of the liquid after buffering and flowing is reduced due to the fact that the liquid flows into an external mother liquor bottle from the inside of the buffer instrument and is easy to pollute in the flowing process in general are solved; the buffer cylinder is communicated with the transmission pipe, the transmission pipe can play a certain role in connecting the liquid inlet medical hose through the threaded block, the third valve body can play a role in opening and closing circulation of the transmission pipe, and meanwhile the threaded block and the liquid inlet medical hose are arranged, so that the liquid inlet medical hose is more convenient to use. And the buffered liquid can smoothly flow into the mother liquid bottle.

Description

Technical Field

[0001] The utility model relates to the field of liquid buffer instruments, in particular to a liquid buffer instrument. Background Art

[0002] "Medical fluid buffers" are used to measure and adjust the pH or other chemical properties of fluids (such as drug solutions, saline, blood, etc.). In a medical setting, ensuring the chemical balance of fluids is very important, especially when it comes to patient treatment.

[0003] In the prior art, most liquid buffers are installed on the product transmission pipe of the synthesizer to buffer the liquid transmitted multiple times by the synthesizer. However, in general, the liquid is easily contaminated during the flow when it flows from the inside of the buffer to the external mother liquid bottle, thereby affecting the subsequent normal use of the liquid and reducing the yield of the liquid after the buffer flow. Therefore, a liquid buffer is now proposed. Utility Model Content

[0004] In order to improve the problem that, in general, liquid is easily contaminated during the flow when flowing from the inside of a buffer instrument to an external mother liquid bottle, thereby affecting the subsequent normal use of the liquid and reducing the yield of the liquid after buffering flow, the utility model provides a liquid buffer instrument.

[0005] The utility model provides a liquid buffer instrument, which adopts the following technical solution:

[0006] A liquid buffer instrument comprises a buffer cylinder, wherein a liquid inlet pipe and a connecting pipe are arranged on the upper side of the buffer cylinder, the liquid inlet pipe and the connecting pipe are both connected with the interior of the buffer cylinder, an air inlet pipe is fixedly connected to the upper side of the connecting pipe, an exhaust pipe is fixedly connected to the outer side of the air inlet pipe, and the air inlet pipe is connected with the exhaust pipe, a transmission pipe is arranged on the lower side of the buffer cylinder, a third valve body is arranged on the outer side of the transmission pipe, a threaded block is arranged on the outer side of the transmission pipe, a liquid inlet medical hose is fixedly connected to the lower side of the threaded block, a mother liquid bottle is arranged at the lower end of the liquid inlet medical hose, and the mother liquid bottle is arranged on the outer side of the liquid inlet medical hose.

[0007] By adopting the above technical solution, the connecting pipe can be connected to the intake pipe, and the exhaust pipe can be installed through the intake pipe. The exhaust pipe is connected to the external nitrogen pipe, and the intake pipe can be connected to the external exhaust pipe. After the nitrogen is added, it can exert pressure on the liquid and squeeze the liquid smoothly into the interior of the transmission pipe.

[0008] Optionally, the upper ends of the exhaust pipe and the air inlet pipe are fixedly connected to a first connecting hollow block, the upper side of the first connecting hollow block is fixedly connected to a connecting pipe, a threaded groove is provided on the outer side of the connecting pipe, and a sterile gas filter membrane is arranged inside the first connecting hollow block.

[0009] By adopting the above technical solution, both the air inlet pipe and the exhaust pipe can be connected to the sterile gas filter membrane through the first connecting hollow block. The opening of the threaded groove on the outside of the connecting pipe can facilitate the connection of the air inlet pipe with the external nitrogen pipe, and can also facilitate the connection of the exhaust pipe with the external exhaust pipe.

[0010] Optionally, a fixing rod is fixedly connected to the interior of the first connecting hollow block, and a plurality of the fixing rods are provided, and the plurality of fixing rods are all provided on the lower side of the sterile gas filter membrane.

[0011] By adopting the above technical solution, the fixing rod can limit and support the sterile gas filter membrane placed inside the first connected hollow block, so that when the sterile gas filter membrane is blown by gas, it is not easy for the sterile gas filter membrane to fall or slide out from the inside of the first connected hollow block due to excessive blowing force of the gas.

[0012] Optionally, a second connecting hollow block is fixedly connected to the lower side of the transmission tube, a liquid filter membrane is arranged on the inner side of the second connecting hollow block, and the threaded block is threadedly connected to the outer side of the second connecting hollow block.

[0013] By adopting the above technical solution, the transmission pipe can be connected to the liquid filter membrane through the second connecting hollow block, and the liquid filter membrane can filter the liquid flowing into the interior of the threaded block, thereby effectively reducing impurities contained in the liquid and increasing the purity of the liquid.

[0014] Optionally, a supporting filter plate is fixedly connected to the inner side of the second connecting hollow block, and the supporting filter plate is arranged on the lower side of the liquid filter membrane.

[0015] By adopting the above technical solution, the supporting filter plate can support and limit the liquid filter membrane, increase the stability of the liquid filter membrane when filtering the liquid, and reduce the possibility of the liquid filter membrane falling into the threaded block when filtering the liquid.

[0016] Optionally, a first valve body is disposed on the outer side of the liquid inlet pipe, a second valve body is disposed on the upper side of the buffer cylinder, and the second valve body is disposed on the outer side of the connecting pipe.

[0017] By adopting the above technical solution, the first valve body can control the flow of the liquid inlet pipe, and the second valve body can open and close the flow of the connecting pipe.

[0018] Optionally, a support rod is fixedly connected to the lower side of the buffer cylinder, a bottom plate is fixedly connected to the lower end of the support rod, and the mother liquid bottle is arranged on the upper side of the bottom plate.

[0019] By adopting the above technical solution, the bottom plate can support the buffer cylinder through the support rod, so that the buffer cylinder can be placed and used smoothly and stably.

[0020] Optionally, a rubber layer is fixedly connected to the upper side of the bottom plate, and the mother liquid bottle is arranged on the lower side of the rubber layer.

[0021] By adopting the above technical solution, the rubber layer can increase the friction between the bottom plate and the mother liquid bottle, thereby reducing the possibility of the mother liquid bottle being offset or shaking when being placed for collection.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. In the utility model, the buffer cylinder is connected with the transmission tube, and the transmission tube can play a certain connecting role with the liquid inlet medical hose through the threaded block, and the third valve body can play an opening and closing role for the circulation of the transmission tube. At the same time, the setting of the threaded block and the liquid inlet medical hose enables the buffered liquid to flow smoothly into the interior of the mother liquid bottle.

[0024] 2. The sterile gas filter membrane in the utility model can filter the incoming and outgoing gases, reducing the pollution to the liquid and the external air. The liquid filter membrane can filter the liquid flowing into the threaded block, thereby effectively reducing the impurities contained in the liquid and increasing the purity of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a liquid buffer instrument of the utility model;

[0026] Figure 2 It is a cross-sectional structural schematic diagram of a liquid buffer device of the utility model;

[0027] Figure 3 The utility model is a liquid buffer instrument Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 4 The utility model is a liquid buffer instrument Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0029] Description of reference numerals:

[0030] 1. Buffer cylinder; 2. Liquid inlet pipe; 3. Connecting pipe; 4. Air inlet pipe; 5. Exhaust pipe; 6. Transmission pipe; 7. Threaded block; 8. Liquid inlet medical hose; 9. Mother liquid bottle; 10. First connecting hollow block; 11. Connecting pipe; 12. Sterile gas filter membrane; 13. Fixing rod; 14. Second connecting hollow block; 15. Liquid filter membrane; 16. Support filter plate; 17. First valve body; 18. Second valve body; 19. Support rod; 20. Bottom plate; 21. Rubber layer; 22. Threaded groove; 23. Third valve body. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] Please refer to Figure 1-3 A liquid buffer instrument comprises a buffer cylinder 1, wherein a liquid inlet pipe 2 and a connecting pipe 3 are arranged on the upper side of the buffer cylinder 1, and the buffer cylinder 1 can play the role of installing and connecting the liquid inlet pipe 2 and the connecting pipe 3, and the liquid inlet pipe 2 can be connected to an external synthesizer so that the external synthesizer can smoothly add liquid to the interior of the buffer cylinder 1 through the liquid inlet pipe 2, and the liquid inlet pipe 2 and the connecting pipe 3 are both connected to the interior of the buffer cylinder 1, and an air inlet pipe 4 is fixedly connected to the upper side of the connecting pipe 3, and an exhaust pipe 5 is fixedly connected to the outer side of the air inlet pipe 4, and the air inlet pipe 4 is connected to the exhaust pipe 5, and the connecting pipe 3 can be connected to the air inlet pipe 4, and the exhaust pipe 5 is installed through the air inlet pipe 4, and the exhaust pipe 5 is connected to an external nitrogen pipe, and the air inlet pipe 4 can be connected to an external exhaust pipe, and after being added, the nitrogen can exert pressure on the liquid and squeeze the liquid smoothly to the transmission pipe 6. Inside, the exhaust pipe can be used to release the added nitrogen. A transmission tube 6 is arranged on the lower side of the buffer cylinder 1, and a third valve body 23 is arranged on the outer side of the transmission tube 6. A threaded block 7 is arranged on the outer side of the transmission tube 6. A liquid inlet medical hose 8 is fixedly connected to the lower side of the threaded block 7. A mother liquid bottle 9 is arranged at the lower end of the liquid inlet medical hose 8, and the mother liquid bottle 9 is arranged on the outer side of the liquid inlet medical hose 8. The buffer cylinder 1 is connected with the transmission tube 6, and the transmission tube 6 can play a certain connecting role on the liquid inlet medical hose 8 through the threaded block 7, and the third valve body 23 can play an opening and closing role on the circulation of the transmission tube 6. At the same time, the setting of the threaded block 7 and the liquid inlet medical hose 8 enables the buffered liquid to flow smoothly into the interior of the mother liquid bottle 9. The buffer cylinder 1 can use a disposable syringe sleeve for buffering, and the transmission tube 6 can use a medical extension tube to transmit liquid.

[0033] Reference Figure 2 and Figure 3The upper ends of the exhaust pipe 5 and the air inlet pipe 4 are fixedly connected with a first connecting hollow block 10, and the upper side of the first connecting hollow block 10 is fixedly connected with a connecting pipe 11, and a threaded groove 22 is provided on the outer side of the connecting pipe 11. A sterile gas filter membrane 12 is arranged inside the first connecting hollow block 10. More specifically, the air inlet pipe 4 and the exhaust pipe 5 can both be connected to the connecting pipe 11 and the sterile gas filter membrane 12 through the first connecting hollow block 10. The opening of the threaded groove 22 on the outer side of the connecting pipe 11 can facilitate the connection of the air inlet pipe 4 with the external nitrogen pipe, and can facilitate the connection of the exhaust pipe 5 with the external exhaust pipe. At the same time, the sterile gas filter membrane 12 can filter the incoming and discharged gases, thereby reducing the pollution to the liquid and the external air.

[0034] Reference Figure 2 and Figure 3 A fixing rod 13 is fixedly connected to the inside of the first connected hollow block 10, and a plurality of fixing rods 13 are provided, and the plurality of fixing rods 13 are all arranged on the lower side of the sterile gas filter membrane 12. More specifically, the fixing rod 13 can limit and support the sterile gas filter membrane 12 placed on the inner side of the first connected hollow block 10, so that when the sterile gas filter membrane 12 is blown by gas, it is not easy for the sterile gas filter membrane 12 to fall off or slide out from the inside of the first connected hollow block 10 due to excessive blowing force of the gas.

[0035] Reference Figure 2 and Figure 4 A second connecting hollow block 14 is fixedly connected to the lower side of the transmission tube 6, a liquid filter membrane 15 is arranged on the inner side of the second connecting hollow block 14, and the threaded block 7 is threadedly connected to the outer side of the second connecting hollow block 14. More specifically, the second connecting hollow block 14 can be smoothly connected to the threaded block 7, and the transmission tube 6 can be connected to the liquid filter membrane 15 through the second connecting hollow block 14, and the liquid filter membrane 15 can filter the liquid flowing into the interior of the threaded block 7, thereby effectively reducing the impurities contained in the liquid and increasing the purity of the liquid.

[0036] Reference Figure 2 and Figure 4 A support filter plate 16 is fixedly connected to the inner side of the second connecting hollow block 14, and the support filter plate 16 is arranged on the lower side of the liquid filter membrane 15. More specifically, the support filter plate 16 can support and limit the liquid filter membrane 15, increase the stability of the liquid filter membrane 15 when filtering the liquid, and reduce the possibility of the liquid filter membrane 15 falling into the threaded block 7 when filtering the liquid.

[0037] Reference Figure 1 and Figure 2A first valve body 17 is provided on the outer side of the liquid inlet pipe 2, and a second valve body 18 is provided on the upper side of the buffer cylinder 1. The second valve body 18 is provided on the outer side of the connecting pipe 3. More specifically, the first valve body 17 can control the flow of the liquid inlet pipe 2, and the second valve body 18 can open and close the flow of the connecting pipe 3, so that the staff can conveniently control the flow status of the liquid inlet pipe 2 and the connecting pipe 3.

[0038] Reference Figure 1 and Figure 2 A support rod 19 is fixedly connected to the lower side of the buffer cylinder 1, and a bottom plate 20 is fixedly connected to the lower end of the support rod 19. The mother liquid bottle 9 is arranged on the upper side of the bottom plate 20. More specifically, the bottom plate 20 can support the buffer cylinder 1 through the support rod 19, so that the buffer cylinder 1 can be placed and used smoothly and stably.

[0039] Reference Figure 1 and Figure 2 A rubber layer 21 is fixedly connected to the upper side of the bottom plate 20, and the mother liquid bottle 9 is arranged on the lower side of the rubber layer 21. More specifically, the rubber layer 21 can increase the friction between the bottom plate 20 and the mother liquid bottle 9, thereby reducing the possibility of deviation and shaking of the mother liquid bottle 9 when being placed for collection.

[0040] The implementation principle of the utility model is as follows: when the device is in use, the staff can connect the liquid inlet pipe 2 to the external synthesizer, and connect it to the external exhaust pipe through the air inlet pipe 4, and connect the emptying pipe 5 to the external nitrogen pipe. After that, the external synthesizer will transport the liquid to the inside of the buffer cylinder 1 through the liquid inlet pipe 2. After that, the staff can inject nitrogen into the inside of the buffer cylinder 1 through the external nitrogen pipe. At this time, the liquid can flow into the inside of the threaded block 7 due to the increase of nitrogen, and flow into the inside of the mother liquid bottle 9 through the threaded block 7 and the liquid inlet medical hose 8. After that, the staff can remove the liquid in the buffer cylinder 1 through the air inlet pipe 4. The added nitrogen is discharged. When the nitrogen enters and is discharged from the buffer cylinder 1, the sterile gas filter membrane 12 will filter the gas, thereby reducing the impurities in the gas and reducing the pollution to the liquid and air. At the same time, the flow of the liquid will be filtered by the liquid filter membrane 15, thereby reducing the impurities in the liquid and increasing the purity of the liquid. This can solve the problem that, in general, the liquid is easily contaminated during the flow when it flows from the inside of the buffer instrument to the external mother liquid bottle 9, thereby affecting the subsequent normal use of the liquid and reducing the yield of the liquid after the buffer flow.

[0041] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A liquid buffer device, comprising a buffer cylinder (1), characterized in that: A liquid inlet pipe (2) and a connecting pipe (3) are arranged on the upper side of the buffer cylinder (1), and the liquid inlet pipe (2) and the connecting pipe (3) are both connected to the interior of the buffer cylinder (1); an air inlet pipe (4) is fixedly connected to the upper side of the connecting pipe (3), and an exhaust pipe (5) is fixedly connected to the outer side of the air inlet pipe (4), and the air inlet pipe (4) is connected to the exhaust pipe (5); a transmission pipe (6) is arranged on the lower side of the buffer cylinder (1), and a third valve body (23) is arranged on the outer side of the transmission pipe (6); a threaded block (7) is arranged on the outer side of the transmission pipe (6), and a liquid inlet medical hose (8) is fixedly connected to the lower side of the threaded block (7); a mother liquid bottle (9) is arranged at the lower end of the liquid inlet medical hose (8), and the mother liquid bottle (9) is arranged on the outer side of the liquid inlet medical hose (8); The upper ends of the exhaust pipe (5) and the air inlet pipe (4) are both fixedly connected to a first connecting hollow block (10), the upper side of the first connecting hollow block (10) is fixedly connected to a connecting pipe (11), a threaded groove (22) is provided on the outer side of the connecting pipe (11), and a sterile gas filter membrane (12) is provided inside the first connecting hollow block (10).

2. A liquid buffer instrument according to claim 1, characterized in that: A fixing rod (13) is fixedly connected inside the first connecting hollow block (10), and a plurality of the fixing rods (13) are provided, and the plurality of fixing rods (13) are all provided on the lower side of the sterile gas filter membrane (12).

3. A liquid buffer according to claim 1, characterized in that: A second connecting hollow block (14) is fixedly connected to the lower side of the transmission pipe (6), a liquid filter membrane (15) is arranged on the inner side of the second connecting hollow block (14), and the threaded block (7) is threadedly connected to the outer side of the second connecting hollow block (14).

4. A liquid buffer instrument according to claim 3, characterized in that: A supporting filter plate (16) is fixedly connected to the inner side of the second connecting hollow block (14), and the supporting filter plate (16) is arranged on the lower side of the liquid filter membrane (15).

5. A liquid buffer instrument according to claim 1, characterized in that: A first valve body (17) is arranged on the outside of the liquid inlet pipe (2), a second valve body (18) is arranged on the upper side of the buffer cylinder (1), and the second valve body (18) is arranged on the outside of the connecting pipe (3).

6. A liquid buffer instrument according to claim 1, characterized in that: A support rod (19) is fixedly connected to the lower side of the buffer cylinder (1), a bottom plate (20) is fixedly connected to the lower end of the support rod (19), and the mother liquid bottle (9) is arranged on the upper side of the bottom plate (20).

7. A liquid buffer instrument according to claim 6, characterized in that: A rubber layer (21) is fixedly connected to the upper side of the bottom plate (20), and the mother liquid bottle (9) is arranged on the lower side of the rubber layer (21).

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