Mixing equipment for hemodialysis concentrated solution

Abstract

The utility model discloses a mixing device for hemodialysis concentrated solution, which comprises a bottom frame, a vertical plate is fixedly arranged on the bottom frame, a solution A box, a solution B box and a pure water box are arranged at the top end of the vertical plate, a first solution feeding hose of the solution A box is connected with a first peristaltic pump, a second solution feeding hose of the solution B box is connected with a second peristaltic pump, and a second peristaltic pump is arranged on the bottom frame. A third liquid feeding hose of the pure water tank is connected with a third peristaltic pump, a first mixing barrel and a second mixing barrel are arranged on the vertical plate, the first mixing barrel is driven by a first motor, and the second mixing barrel is driven by a second motor. By controlling the rotating speed of each peristaltic pump in unit time, the conveying amount in unit time is accurately controlled, quantitative conveying of liquid in unit time is achieved, the liquid only makes contact with the inner wall of the pipeline, finished liquid is directly conveyed to designated equipment in a closed mode through the second conveying pipe to be put into use, cross contamination is avoided, and the production efficiency is improved. The motor drives the mixing cylinder to rotate, and liquid is mixed by means of centrifugal force.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a mixing device for hemodialysis concentrate. Background Technology

[0002] Hemodialysis concentrate is a medical preparation used in hemodialysis treatment. Through a specific formulation, it provides electrolytes, buffers, and other components to help remove metabolic waste products from the body and regulate electrolyte balance. Mixing the hemodialysis concentrate is a crucial step in dialysis treatment.

[0003] The hemodialysis concentrate consists of two parts, solution A and solution B. When preparing the hemodialysis concentrate, the two liquids need to be mixed with pure water. During mixing, not only is it necessary to accurately measure the proportions of each liquid, but it is also necessary to mix the liquids thoroughly. If the operator lacks aseptic awareness, solution A and solution B are easily contaminated, which will affect the quality of the finished solution. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for hemodialysis concentrate to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing device for hemodialysis concentrate, comprising a base frame, on which a vertical plate is fixedly mounted. An A-liquid tank, a B-liquid tank, and a pure water tank are mounted on the top of the vertical plate. A first delivery hose of the A-liquid tank is connected to a first peristaltic pump, a second delivery hose of the B-liquid tank is connected to a second peristaltic pump, and a third delivery hose of the pure water tank is connected to a third peristaltic pump. A first mixing cylinder and a second mixing cylinder are mounted on the vertical plate. The first mixing cylinder is driven by a first motor, and the second mixing cylinder is driven by a second motor. Both the first and second mixing cylinders have flow channels.

[0006] The first mixing cylinder and the second mixing cylinder are each provided with a liquid inlet seat at their upper ends and a liquid outlet seat at their lower ends. The liquid inlet seat and the liquid outlet seat of the first mixing cylinder are connected to the first mixing cylinder via bearings, and the liquid inlet seat and the liquid outlet seat of the second mixing cylinder are connected to the second mixing cylinder via bearings.

[0007] Both the inlet and outlet seats are fixedly mounted on the upright plate.

[0008] One end of the first liquid delivery hose is connected to the outlet of liquid tank A, and the other end of the first liquid delivery hose is connected to the inlet of the first mixing cylinder.

[0009] One end of the second liquid delivery hose is connected to the outlet of liquid tank B, and the other end of the second liquid delivery hose is connected to the inlet of the first mixing cylinder.

[0010] One end of the third liquid delivery hose is connected to the outlet of the pure water tank, and the other end of the third liquid delivery hose is connected to the inlet of the second mixing cylinder.

[0011] A first delivery pipe is provided between the liquid outlet of the first mixing cylinder and the liquid inlet of the second mixing cylinder.

[0012] The liquid outlet of the second mixing cylinder is connected to the second delivery pipe.

[0013] The first and second mixing cylinders are each provided with a gear ring on their outer surfaces, and the output shafts of the first and second motors are both fixedly connected to gears, with the gears meshing and transmitting power to the gear rings.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The peristaltic pump of this utility model delivers liquid by mechanically squeezing the hose. By controlling the rotation speed of each peristaltic pump per unit time, the delivery volume per unit time is precisely controlled, realizing the quantitative delivery of liquid A, liquid B, and pure water per unit time. The liquid only contacts the inner wall of the pipe, and the finished liquid is directly and sealed through the second delivery pipe to the designated equipment for use, effectively avoiding cross-contamination and meeting the aseptic requirements.

[0016] 2. This utility model uses a motor to drive the mixing drum to rotate, and relies on centrifugal force to mix the liquid. The serpentine flow channel extends the flow time of the liquid in the flow channel, thereby improving the mixing quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure from one side view of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure from another side view of the present invention;

[0019] Figure 3 This is a side view of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the first mixing cylinder of this utility model.

[0021] In the diagram: 1. Base frame; 2. Vertical plate; 3. A liquid tank; 4. B liquid tank; 5. Pure water tank; 6. First peristaltic pump; 7. Second peristaltic pump; 8. Third peristaltic pump; 9. First mixing cylinder; 10. Second mixing cylinder; 11. First motor; 12. Second motor; 13. First delivery pipe; 14. Second delivery pipe; 15. Gear; 31. First liquid delivery hose; 41. Second liquid delivery hose; 51. Third liquid delivery hose; 91. Liquid inlet seat; 92. Liquid outlet seat; 93. Bearing; 94. Flow channel; 95. Gear ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a mixing device for hemodialysis concentrate, including a base frame 1, a vertical plate 2 fixedly mounted on the base frame 1, an A liquid tank 3, a B liquid tank 4 and a pure water tank 5 mounted on the top of the vertical plate 2, a first delivery hose 31 of the A liquid tank 3 connected to a first peristaltic pump 6, a second delivery hose 41 of the B liquid tank 4 connected to a second peristaltic pump 7, and a third delivery hose 51 of the pure water tank 5 connected to a third peristaltic pump 8, a first mixing cylinder 9 and a second mixing cylinder 10 mounted on the vertical plate 2, the first mixing cylinder 9 being driven by a first motor 11 and the second mixing cylinder 10 being driven by a second motor 12, both the first mixing cylinder 9 and the second mixing cylinder 10 being provided with flow channels 94, the flow channels 94 being configured with a serpentine structure to prolong the flow time of the liquid in the flow channels 94, thereby improving the mixing quality.

[0024] The peristaltic pump delivers liquids by mechanically squeezing the tubing. The first peristaltic pump 6 delivers liquid A, the second peristaltic pump 7 delivers liquid B, and the third peristaltic pump 8 delivers pure water. By controlling the rotation speed of each peristaltic pump per unit time, the delivery volume per unit time is controlled, thereby achieving quantitative delivery of liquid A, liquid B, and pure water per unit time.

[0025] Driven by the first peristaltic pump 6, liquid A enters the first mixing cylinder 9 through the first delivery hose 31. Driven by the second peristaltic pump 7, liquid B enters the first mixing cylinder 9 through the second delivery hose 41. Liquid A and liquid B are mixed in the first mixing cylinder 9. The first motor 11 drives the first mixing cylinder 9 to rotate. When liquid A and liquid B flow in the flow channel 94 of the first mixing cylinder 9, they are fully mixed by centrifugal force. The mixed liquid enters the second mixing cylinder 10 through the first delivery pipe 13.

[0026] Driven by the third peristaltic pump 8, pure water enters the second mixing cylinder 10 through the third liquid delivery hose 51. The mixture of liquid A and liquid B is mixed with pure water in the second mixing cylinder 10. The second motor 12 drives the second mixing cylinder 10 to rotate. When the mixture of liquid A and liquid B and pure water flow in the flow channel 94 of the second mixing cylinder 10, they are fully mixed by centrifugal force. The finished product liquid is discharged through the second delivery pipe 14. During the transportation process, the liquids A, B and pure water only come into contact with the inner wall of the pipe. The finished product liquid is directly and sealed through the second delivery pipe 14 to the designated equipment for use, effectively avoiding cross-contamination and meeting the sterility requirements.

[0027] The first mixing cylinder 9 and the second mixing cylinder 10 are each provided with a liquid inlet seat 91 at their upper ends and a liquid outlet seat 92 at their lower ends. The liquid inlet seat 91 and the liquid outlet seat 92 of the first mixing cylinder 9 are connected to the first mixing cylinder 9 by a bearing 93, and the liquid inlet seat 91 and the liquid outlet seat 92 of the second mixing cylinder 10 are connected to the second mixing cylinder 10 by a bearing 93.

[0028] The body of the first mixing cylinder 9 is rotatable relative to the inlet seat 91 and the outlet seat 92 of the first mixing cylinder 9, and the body of the second mixing cylinder 10 is rotatable relative to the inlet seat 91 and the outlet seat 92 of the second mixing cylinder 10.

[0029] Both the liquid inlet seat 91 and the liquid outlet seat 92 are fixedly mounted on the vertical plate 2.

[0030] The inlet seat 91 and outlet seat 92 of the first mixing cylinder 9 are fixed, and the inlet seat 91 and outlet seat 92 of the second mixing cylinder 10 are fixed. The cylinder body of the first mixing cylinder 9 can rotate under the drive of the first motor 11, and the cylinder body of the second mixing cylinder 10 can rotate under the drive of the second motor 12.

[0031] One end of the first liquid delivery hose 31 is connected to the outlet of the A liquid tank 3, and the other end of the first liquid delivery hose 31 is connected to the inlet seat 91 of the first mixing cylinder 9. The A liquid inside the A liquid tank 3 enters the first mixing cylinder 9 through the first liquid delivery hose 31 under the drive of the first peristaltic pump 6.

[0032] One end of the second liquid delivery hose 41 is connected to the outlet of the B liquid tank 4, and the other end of the second liquid delivery hose 41 is connected to the inlet seat 91 of the first mixing cylinder 9. The B liquid inside the B liquid tank 4 enters the first mixing cylinder 9 through the second liquid delivery hose 41 under the drive of the second peristaltic pump 7.

[0033] One end of the third liquid delivery hose 51 is connected to the outlet of the pure water tank 5, and the other end of the third liquid delivery hose 51 is connected to the inlet seat 91 of the second mixing cylinder 10. The pure water inside the pure water tank 5 enters the second mixing cylinder 10 through the third liquid delivery hose 51 under the drive of the third peristaltic pump 8.

[0034] A first conveying pipe 13 is provided between the liquid outlet seat 92 of the first mixing cylinder 9 and the liquid inlet seat 91 of the second mixing cylinder 10, through which the mixture of liquid A and liquid B enters the second mixing cylinder 10.

[0035] The liquid outlet seat 92 of the second mixing cylinder 10 is connected to the second conveying pipe 14, and the finished liquid is directly conveyed to the designated equipment for use through the second conveying pipe 14 in a closed manner.

[0036] The first mixing cylinder 9 and the second mixing cylinder 10 are both provided with gear rings 95 on their outer surfaces. The output shafts of the first motor 11 and the second motor 12 are both fixedly connected to gears 15, and gears 15 and gear rings 95 mesh and transmit power.

[0037] When the first motor 11 is working, it drives the gear 15 at one end to rotate. Through the transmission between the teeth, it drives the gear ring 95 of the first mixing cylinder 9 to move. The gear ring 95 drives the first mixing cylinder 9 to rotate. The first mixing cylinder 9 mixes the liquid by relying on centrifugal force. When the second motor 12 is working, it drives the gear 15 at one end to rotate. Through the transmission between the teeth, it drives the gear ring 95 of the second mixing cylinder 10 to move. The gear ring 95 drives the second mixing cylinder 10 to rotate. The second mixing cylinder 10 mixes the liquid by relying on centrifugal force.

[0038] Working principle: During use, the rotation speed of each peristaltic pump is controlled according to the mixing ratio requirements to precisely control the delivery volume per unit time. Driven by the first peristaltic pump 6, liquid A enters the first mixing cylinder 9 through the first delivery hose 31. Driven by the second peristaltic pump 7, liquid B enters the first mixing cylinder 9 through the second delivery hose 41. Liquids A and B are mixed in the first mixing cylinder 9. The first motor 11 drives the first mixing cylinder 9 to rotate. When liquids A and B flow in the flow channel 94 of the first mixing cylinder 9, they are subjected to... Centrifugal force ensures thorough mixing. The mixed liquid enters the second mixing cylinder 10 through the first delivery pipe 13. Driven by the third peristaltic pump 8, pure water enters the second mixing cylinder 10 through the third liquid delivery hose 51. The mixture of liquid A and liquid B is mixed with pure water in the second mixing cylinder 10. The second motor 12 drives the second mixing cylinder 10 to rotate. When the mixture of liquid A and liquid B and pure water flow in the flow channel 94 of the second mixing cylinder 10, they are thoroughly mixed by centrifugal force. The finished product liquid is discharged through the second delivery pipe 14.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing apparatus for hemodialysis concentrates, comprising a chassis (1), characterized in that: The chassis (1) is fixedly provided with a vertical plate (2), the top end of the vertical plate (2) is provided with an A liquid tank (3), a B liquid tank (4) and a pure water tank (5), the first liquid feeding hose (31) of the A liquid tank (3) is connected with a first peristaltic pump (6), the second liquid feeding hose (41) of the B liquid tank (4) is connected with a second peristaltic pump (7), the third liquid feeding hose (51) of the pure water tank (5) is connected with a third peristaltic pump (8), the vertical plate (2) is provided with a first mixing cylinder (9) and a second mixing cylinder (10), the first mixing cylinder (9) is driven by a first motor (11), the second mixing cylinder (10) is driven by a second motor (12), the first mixing cylinder (9) and the second mixing cylinder (10) are both provided with a flow channel (94).

2. A mixing apparatus for hemodialysis concentrates according to claim 1, characterized in that The upper end of the first mixing cylinder (9) and the second mixing cylinder (10) is provided with a liquid inlet seat (91), the lower end of the first mixing cylinder (9) and the second mixing cylinder (10) is provided with a liquid outlet seat (92), the liquid inlet seat (91) and the liquid outlet seat (92) of the first mixing cylinder (9) are connected with the first mixing cylinder (9) through a bearing (93), the liquid inlet seat (91) and the liquid outlet seat (92) of the second mixing cylinder (10) are connected with the second mixing cylinder (10) through a bearing (93).

3. A mixing apparatus for hemodialysis concentrates according to claim 2, characterized in that The liquid inlet seat (91) and the liquid outlet seat (92) are fixedly arranged on the vertical plate (2).

4. A mixing apparatus for hemodialysis concentrates according to claim 3, characterized in that One end of the first liquid feeding hose (31) is connected with the liquid outlet of the A liquid tank (3), the other end of the first liquid feeding hose (31) is connected with the liquid inlet seat (91) of the first mixing cylinder (9).

5. A mixing apparatus for hemodialysis concentrates according to claim 4, characterized in that One end of the second liquid feeding hose (41) is connected with the liquid outlet of the B liquid tank (4), the other end of the second liquid feeding hose (41) is connected with the liquid inlet seat (91) of the first mixing cylinder (9).

6. A mixing apparatus for hemodialysis concentrates according to claim 5, characterized in that One end of the third liquid feeding hose (51) is connected with the liquid outlet of the pure water tank (5), the other end of the third liquid feeding hose (51) is connected with the liquid inlet seat (91) of the second mixing cylinder (10).

7. A mixing apparatus for hemodialysis concentrates according to claim 6, characterized in that The liquid outlet seat (92) of the first mixing cylinder (9) is provided with a first conveying pipe (13) between the liquid inlet seat (91) of the second mixing cylinder (10).

8. A mixing apparatus for hemodialysis concentrates according to claim 7, characterized in that The liquid outlet seat (92) of the second mixing cylinder (10) is connected with a second conveying pipe (14).

9. The mixing apparatus for hemodialysis concentrate concentrate according to claim 1, wherein: The outer side of the first mixing cylinder (9) and the second mixing cylinder (10) is provided with a gear ring (95), the output shaft of the first motor (11) and the second motor (12) is fixedly connected with a gear (15), and the gear (15) is engaged with the gear ring (95).

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