A hemodialysis concentrate on-demand dissolver
By designing a dissolver for on-the-spot preparation of hemodialysis concentrate, and using a combination of weighing hopper and dispersion hopper with stirring blades, the problem of uneven mixing of raw materials on an industrial scale was solved, and efficient preparation of dialysis concentrate was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIPENG MEDICAL EQUIP CHENGDU CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-29
AI Technical Summary
Existing technologies struggle to efficiently prepare large quantities of hemodialysis concentrate, especially on an industrial scale, where uneven mixing of raw materials leads to low efficiency in preparing dialysis concentrate.
A hemodialysis concentrate dissolver for immediate use was designed, comprising a dissolving tank, a stirring assembly, and a dispersing assembly. By combining a weighing hopper, a dispersing hopper, and stirring blades, the raw materials are accurately weighed and uniformly stirred, preventing clumping and improving the efficiency of dialysis concentrate preparation.
It achieves uniform mixing and dispersion of raw materials, improves the preparation efficiency of dialysis solution, is suitable for mass production, ensures that raw materials are mixed in proportion, and avoids raw material clumping.
Smart Images

Figure CN224293008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stirring equipment technology, and in particular to a dissolver for preparing hemodialysis concentrate on an on-site basis. Background Technology
[0002] Hemodialysis concentrate is the core solution in dialysis treatment, used to regulate the electrolyte and acid-base balance of the dialysate, ensuring that toxins and excess water in the patient's blood are effectively removed. It consists of two solutions: Solution A (acidic concentrate) and Solution B (bicarbonate concentrate), which usually need to be diluted according to a specific ratio before use. In preparing Solution A, sodium chloride, potassium chloride, calcium chloride, magnesium chloride, etc., must first be weighed according to the standard formula to ensure that the purity of the raw materials meets medical standards. Then, reverse osmosis water (RO water) is used to dissolve the raw materials, stirring until completely dissolved.
[0003] When hospitals prepare dialysis fluid, the raw materials of solution A can be dissolved in reverse osmosis water manually or by using a small stirrer. However, for industrial production of dialysis fluid, a device that can prepare large quantities of dialysis fluid is required. Utility Model Content
[0004] In view of the above problems, this utility model provides a dissolving device for preparing hemodialysis concentrate on the spot.
[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:
[0006] A hemodialysis concentrate dissolver for immediate use is provided, comprising a dissolving tank, an inlet pipe connected to the top of the dissolving tank and an outlet pipe connected to the bottom of the dissolving tank, a stirring assembly provided inside the dissolving tank, and a dispensing assembly provided at the top of the dissolving tank, the dispensing assembly comprising a weighing hopper and a dispersing hopper arranged sequentially from top to bottom, and a first valve provided at the bottom of the weighing hopper.
[0007] Furthermore, a support frame is provided on the top of the dissolving tank, and the weighing hopper is mounted on the support frame via a weighing sensor. A display is provided on the support frame to show the values detected by the weighing sensor.
[0008] Furthermore, the stirring assembly includes a stirring shaft coaxially rotatably disposed within the dissolving tank and a first drive motor for driving the stirring shaft to rotate, and a plurality of stirring blades are disposed on the stirring shaft.
[0009] Furthermore, the dispersing hopper is equipped with a dispersing component for dispersing raw materials fed into the dissolving tank. The dispersing component includes a dispersing screen, a dispersing roller, and a second drive motor. The dispersing roller is horizontally arranged inside the dispersing hopper, and its two ends are rotatably connected to the inner wall of the dispersing hopper. The second drive motor is used to drive the dispersing roller to rotate. The dispersing screen is connected to the bottom of the dispersing hopper, and the dispersing roller is used to reciprocate to move the raw materials on the dispersing screen.
[0010] Furthermore, the dispersing roller includes a rotating shaft and several dispersing blades. The two ends of the rotating shaft are rotatably connected to the dispersing hopper. The dispersing blades are connected to the outer wall of the rotating shaft. Multiple dispersing blades are evenly spaced along the circumference of the rotating shaft. Multiple groups of dispersing blades are evenly arranged along the rotating shaft. The dispersing blades are hollowed out and arranged in a spiral. The spiral directions of two adjacent groups of dispersing blades are opposite.
[0011] Furthermore, the outer edge of the dispersing blades is provided with bristles, and the dispersing screen is adapted to the rotation path of the dispersing blades.
[0012] The beneficial effects of this utility model are as follows: 1. When preparing dialysis solution, the raw materials are put into the weighing hopper, and the weight of each raw material is accumulated by the weighing hopper to make the raw materials compound ratio. Then, the raw materials are dispersed by the dispersion hopper and put into the reverse osmosis water in the dissolving tank. The raw materials in the dissolving tank are uniformly stirred and dissolved into the reverse osmosis water by the stirring component. This is suitable for mass production of dialysis solution.
[0013] 2. Inside the dispersion hopper, the raw materials are repeatedly moved on the dispersion screen by the rotation of the dispersion roller, so that the raw materials are dispersed and fall into the dissolving tank, thus avoiding the raw materials from clumping in the reverse osmosis water and improving the preparation efficiency of the dialysis solution. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the dissolver according to an embodiment of this application.
[0015] Figure 2 This is a partial cross-sectional view of the dissolving tank according to an embodiment of this application.
[0016] Figure 3 This is a schematic diagram of the internal structure of the dispersion bucket in an embodiment of this application.
[0017] The components include: 1. Dissolving tank; 11. Inlet pipe; 12. Outlet pipe; 2. Stirring assembly; 21. Stirring shaft; 22. First drive motor; 23. Stirring blades; 3. Batching assembly; 31. Weighing hopper; 311. First valve; 32. Dispersion hopper; 4. Support frame; 41. Weighing sensor; 42. Display; 5. Dispersion assembly; 51. Dispersion screen; 52. Dispersion roller; 521. Rotating shaft; 522. Dispersion blades; 523. Brush bristles; 53. Second drive motor. Detailed Implementation
[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0019] This application discloses a hemodialysis concentrate dissolver for immediate use, as described in the embodiments below. Figure 1 and Figure 2The system includes a dissolving tank 1, with an inlet pipe 11 connected to the top and an outlet pipe 12 connected to the bottom. The inlet pipe 11 is used to connect to an external reverse osmosis water storage tank, and a water pump pumps reverse osmosis water into the dissolving tank 1. The outlet pipe 12 is equipped with a valve for discharging the prepared dialysis solution. A stirring assembly 2 is installed inside the dissolving tank 1, and a batching assembly 3 is installed at the top of the dissolving tank 1. The batching assembly 3 includes a weighing hopper 31 and a dispersing hopper 32 arranged sequentially from top to bottom. A first valve 311 is installed at the bottom of the weighing hopper 31. The raw materials are weighed through the weighing hopper 31. After weighing, the raw materials are put into the dispersing hopper 32 and dispersed into the dissolving tank 1. The stirring assembly 2 stirs the solution in the dissolving tank 1 to avoid the raw materials from clumping together or floating on the surface of the solution and sticking to the inner wall of the tank when all the raw materials are added at once.
[0020] Specifically, a support frame 4 is integrally fixedly installed on the top of the dissolving tank 1. A weighing sensor 41 is fixedly installed on the support frame 4. The weighing hopper 31 is mounted on the support frame 4 via the weighing sensor 41. A display 42 for displaying the values detected by the weighing sensor 41 is also installed on the support frame 4. The weighing sensor 41 is electrically connected to the display 42. The operator can observe the cumulative weight of the material in the weighing hopper 31 in real time through the display 42, which facilitates the operator to weigh the raw materials according to the proportions when adding various raw materials in sequence. In other embodiments, various raw materials can also be automatically transported through various raw material storage tanks and material pumps. In this case, the weight of the raw materials in the weighing hopper 31 is weighed in real time by the weighing sensor 41, and the start and stop of the material pumps in each raw material tank are controlled by a computer.
[0021] Reference Figure 3 The bottom opening of the weighing hopper 31 is connected to the top opening of the dispersing hopper 32. The bottom opening of the dispersing hopper 32 extends into the dissolving tank 1. A dispersing assembly 5 for dispersing raw materials fed into the dissolving tank 1 is provided inside the dispersing hopper 32. Specifically, the dispersing assembly 5 includes a dispersing screen 51, a dispersing roller 52, and a second drive motor 53. The dispersing roller 52 is horizontally arranged inside the dispersing hopper 32, and its two ends are rotatably connected to the inner wall of the dispersing hopper 32. The second drive motor 53 is fixedly installed on the dispersing hopper 32, and its output shaft is coaxially connected to the dispersing roller 52 to drive the dispersing roller 52 to rotate. The dispersing screen 51 is connected to the bottom of the dispersing hopper 32, and the dispersing roller 52 is used to reciprocate to move the raw materials on the dispersing screen 51.
[0022] The dispersing roller 52 includes a rotating shaft 521 and several dispersing blades 522. Both ends of the rotating shaft 521 are rotatably connected to the dispersing hopper 32. The dispersing blades 522 are connected to the outer wall of the rotating shaft 521 and are hollowed out and spirally arranged. Multiple dispersing blades are evenly spaced along the circumference of the rotating shaft 521, and multiple sets of dispersing blades 522 are evenly arranged along the rotating shaft 521, with adjacent sets of dispersing blades 522 having opposite spiral directions. When the dispersing roller 52 rotates, the spirally arranged dispersing blades 522 push the raw material to move on the dispersing screen 51, allowing the material to pass through the dispersing screen 51 in a dispersed manner. Furthermore, bristles 523 can be provided on the outer edge of the dispersing blades 522. The dispersing screen 51 is adapted to the rotation path of the dispersing blades 522, so that the dispersing screen 51 is arranged in an arc shape within the dispersing hopper 32. This allows the dispersing blades 522 to more easily brush the raw material on the dispersing screen 51, ensuring that no raw material residue remains on the dispersing screen 51.
[0023] In this embodiment, the stirring assembly 2 includes a stirring shaft 21 coaxially rotatably disposed in the dissolving tank 1 and a first drive motor 22 for driving the stirring shaft 21 to rotate. The first drive motor 22 is fixedly installed on the top of the dissolving tank 1, and the output shaft of the first drive motor 22 is connected to the stirring shaft 21 for transmission. A plurality of stirring blades 23 are fixedly connected to the part of the stirring shaft 21 located inside the dissolving tank 1.
[0024] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.
Claims
1. A hemodialysis concentrate dissolver for immediate use, characterized in that: The system includes a dissolving tank (1), with an inlet pipe (11) connected to the top and an outlet pipe (12) connected to the bottom. A stirring assembly (2) is installed inside the dissolving tank (1), and a dispensing assembly (3) is installed at the top of the dissolving tank (1). The dispensing assembly (3) includes a weighing hopper (31) and a dispersing hopper (32) arranged sequentially from top to bottom. A first valve (311) is installed at the bottom of the weighing hopper (31). The dispersing hopper (32) is equipped with a dispersing component (5) for dispersing raw materials fed into the dissolving tank (1). The dispersing component (5) includes a dispersing screen (51), a dispersing roller (52), and a second drive motor (53). The dispersing roller (52) is horizontally arranged in the dispersing hopper (32). Both ends of the dispersing roller (52) are rotatably connected to the inner wall of the dispersing hopper (32). The second drive motor (53) is used to drive the dispersing roller (52) to rotate. The dispersing screen (51) is connected to the bottom of the dispersing hopper (32). The dispersing roller (52) is used to reciprocate to move the raw materials on the dispersing screen (51). The dispersing roller (52) includes a rotating shaft (521) and a plurality of dispersing blades (522). The two ends of the rotating shaft (521) are rotatably connected to the dispersing hopper (32). The dispersing blades (522) are connected to the outer wall of the rotating shaft (521). A plurality of dispersing blades (522) are evenly spaced along the circumference of the rotating shaft (521). A plurality of groups of dispersing blades (522) are evenly arranged along the rotating shaft (521). The dispersing blades (522) are hollow and spirally arranged. The spiral directions of two adjacent groups of dispersing blades (522) are opposite.
2. The hemodialysis concentrate dissolving apparatus according to claim 1, characterized in that, The dissolving tank (1) is provided with a support frame (4) on top. The weighing hopper (31) is mounted on the support frame (4) via a weighing sensor (41). The support frame (4) is provided with a display (42) for displaying the value detected by the weighing sensor (41).
3. The hemodialysis concentrate dissolving apparatus according to claim 2, characterized in that, The stirring assembly (2) includes a stirring shaft (21) coaxially rotatably disposed in the dissolving tank (1) and a first drive motor (22) for driving the stirring shaft (21) to rotate. The stirring shaft (21) is provided with a plurality of stirring blades (23).
4. The hemodialysis concentrate dissolving apparatus according to claim 1, characterized in that, The outer edge of the dispersing blade (522) is provided with bristles (523), and the dispersing screen (51) is adapted to the rotation path of the dispersing blade (522).