Dialysate supply device for hemodialysis

Abstract

The invention discloses a dialysate supply device for hemodialysis, which comprises a tank body, a partition plate, a material storage tank, a liquid storage box, a stirring rod and a power mechanism, and is provided with a feeding mechanism, a liquid discharge mechanism and a supply device, the feeding mechanism performs lifting reciprocating motion through a first conical block and a second conical block which are driven by a cam; quantitative closed feeding of dialysis dry powder is achieved, the problem that a traditional blade cuts a dry powder bag to cause scrap pollution is solved, a liquid discharging mechanism adopts a double-column-shaped shell to be matched with a piston plate and a one-way valve and is in linkage with a feeding mechanism, medicine liquid is synchronously and quantitatively extracted, and a supply device utilizes a floating block to ascend and descend along with the liquid level, and a sealing block is driven to be opened and closed through an adjusting rod. According to the automatic feeding device for the dialysis dry powder, the dialysis dry powder is accurately metered, mixed and fed, and the preparation quality of the dialysis liquid and the clinical use safety are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a dialysate supply device for hemodialysis. BACKGROUND

[0002] Hemodialysis is the core kidney replacement therapy for patients with end-stage renal disease, and its basic principle is to use the solute concentration gradient and pressure gradient on both sides of the semi-permeable membrane to remove metabolic waste, toxins and excess water in the body through diffusion, convection and ultrafiltration mechanisms, while correcting electrolyte and acid-base balance disorders. The dialysate supply device, as a key component of the hemodialysis system, has the function of mixing and preparing dialysate according to the proportion of dialysate and dialysis dry powder and continuously and stably delivering it to the dialyzer. Its performance directly determines the sufficiency and safety of dialysis treatment.

[0003] The existing Chinese patent with publication number CN119185686A includes a supply device, which includes a liquid storage tank for storing mixed dialysate. One side of the liquid storage tank is provided with a dialysis device, and the mixed dialysate in the liquid storage tank is used to supply the dialysis device. It also includes a dialysate preparation tank, which is arranged on the top of the liquid storage tank and includes a water tank and a mixing tank that are connected to each other. One side of the water tank is provided with a liquid inlet.

[0004] The above-mentioned device, when in use, drives the blade to move to cut the dialysis dry powder bag in a sealed environment, reducing the pollution and dampness caused by the contact between the dialysis dry powder and the external air. The blade reciprocally slides in the hole to not only cut the dry powder bag, but also to preliminarily crush the caked dry powder. However, in actual use, the cutting of the dry powder bag by the blade easily causes the dry powder bag debris to mix with the dialysis dry powder, which pollutes the subsequent dialysate mixing. Therefore, it is difficult to quantitatively put the dialysis dry powder into the dialysate, and the use effect is not good.

[0005] Therefore, we propose a dialysate supply device for hemodialysis. SUMMARY

[0006] The present application aims to provide a dialysate supply device for hemodialysis, which has the advantage of uniformly mixing the dialysis dry powder quantitatively put into the dialysate, and solves the problems in the background art.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a dialysate supply device for hemodialysis, comprising a tank body, two sides of the inner wall of the tank body are symmetrically provided with a sliding rail, the sliding rail is movably connected with a partition plate for partitioning the inner wall of the tank body, the inner wall of both ends of the tank body is respectively formed with a supply cavity and a mixing cavity, the partition plate is movably connected with a first spring on both sides and the opposite surface of the top end of the tank body, the end of the tank body is penetrated and fixedly connected with a storage tank for storing dialysis dry powder, the end of the tank body is fixedly connected with a liquid storage tank for storing liquid medicine near the storage tank, the outer contour of the tank body near the end of the mixing cavity is penetrated and fixedly connected with a stirring rod driven to rotate by a power mechanism, the storage tank is provided with a feeding mechanism and a liquid discharge mechanism for quantitatively feeding the dialysis dry powder and the liquid medicine in the storage tank and the liquid storage tank into the mixing cavity.

[0008] Preferably, the feeding mechanism comprises a first conical block movably connected with the inner wall of the bottom end of the storage tank, the first conical block is fixedly connected with a second conical block for quantitatively feeding the dialysis dry powder in the storage tank.

[0009] Preferably, the stirring rod is coaxially fixedly connected with a cam block for driving the first conical block to move up and down reciprocally, the cam block is provided with a cam groove, the bottom end of the first conical block is fixedly connected with a fixed rod for driving the first conical block to move up and down reciprocally, and the end of the fixed rod away from the first conical block is penetrated into the inner wall of the cam groove and movably connected.

[0010] Preferably, the liquid discharge mechanism comprises a cylindrical shell fixedly connected with the end of the tank body, the end of the cylindrical shell is penetrated and fixedly connected with a liquid inlet pipe for conveying the liquid medicine in the liquid storage tank into the cylindrical shell, and the end of the liquid inlet pipe is penetrated into the inner wall of the liquid storage tank and fixedly connected.

[0011] Preferably, the inner wall of the cylindrical shell is movably connected with a piston plate for extracting and discharging the liquid medicine in the liquid storage tank, the piston plate is penetrated and fixedly connected with a liquid discharge pipe, the outer contour of the bottom end of the liquid discharge pipe is fixedly connected with a support rod for driving the piston plate to move up and down reciprocally, the support rod is penetrated and fixedly connected with the fixed rod, and the inner wall of the adjacent end of the liquid inlet pipe and the liquid discharge pipe of each side is respectively fixedly connected with a one-way liquid inlet valve and a one-way liquid discharge valve for quantitatively extracting and discharging the liquid medicine in the liquid storage tank.

[0012] Preferably, the partition plate is provided with a supply device for discharging the mixed dialysate into the supply chamber. The supply device includes liquid passage holes symmetrically opened on both sides of the partition plate for conveying the mixed dialysate from the mixing chamber into the supply chamber. A movable groove is opened on both sides of the bottom of the partition plate symmetrically. A movable rod is horizontally movably connected to the inner wall of the movable groove on both sides. A sealing block is fixedly connected to the opposite end of the movable rod on both sides to seal the liquid passage hole on the adjacent side.

[0013] Preferably, a float is connected to the partition plate through which the float moves up and down, and a fixed block is fixedly connected to the bottom of the float. Adjusting rods that push the moving rod to move towards or away from each other are rotatably connected to the fixed block on both sides of the fixed block. The ends of the adjusting rods on both sides away from the fixed block are respectively rotatably connected to the moving rod on the adjacent side.

[0014] Preferably, a push switch for controlling the start and stop of the stirring rod is fixedly connected to the partition plate near the bottom of the float, and a second spring for guiding the float to reset is fixedly connected to the opposite surface of the fixed block and the partition plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The first and second conical blocks are driven by a cam block to move up and down in a reciprocating motion. The second conical block is used to quantitatively pick up and release the dialysis powder at the outlet of the storage tank, so as to quantitatively and uniformly add the dialysis powder into the mixing chamber. This avoids the contamination caused by the traditional blade cutting the powder bag, which significantly improves the purity of the dialysis solution and the clinical safety.

[0016] Second, the support rod is fixedly connected to the fixed rod of the feeding mechanism. The fixed rod drives the support rod to reciprocate, which causes the drain pipe to drive the piston plate to reciprocate synchronously. This achieves quantitative extraction and discharge of the drug solution from the storage tank to the mixing chamber. The flow control accuracy is high, which effectively ensures a constant mixing ratio of dialysis dry powder and drug solution and improves the consistency of dialysis fluid quality.

[0017] Third, the linkage mechanism of the float, the adjusting rod, the moving rod and the sealing block driven by the rise and fall of the float with the liquid level can automatically open the liquid passage when the mixed liquid reaches the preset liquid level, and introduce the mixed dialysate into the supply chamber. When the liquid level is insufficient, it will automatically close, realizing full-process automatic control. When the mixture reaches the set level, the press switch is triggered to stop the stirring rod, and the sealing block opens to supply the solution. This ensures that only fully mixed dialysate can enter the supply stage, preventing undissolved liquid from flowing into the dialyzer and improving treatment safety.

[0018] The combined use of the above structures solves the problem that, in actual use, existing devices often cause dry powder bag fragments to mix with the dialysis dry powder due to the blade cutting through the dry powder bag, thus contaminating the subsequent dialysis solution. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a three-dimensional structural diagram of the part where the stirring rod of the present invention is located; Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point A in the middle; Figure 5 For the present invention Figure 3 Schematic diagram of the structure at point B; Figure 6 This is a three-dimensional cross-sectional view of the part where the storage tank of the present invention is located; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point C; Figure 8 This is a three-dimensional cross-sectional view of the part where the partition plate of the present invention is located; Figure 9 For the present invention Figure 8 Schematic diagram of the structure at point D.

[0020] In the diagram: 1. Tank body; 101. Supply chamber; 102. Mixing chamber; 2. Slide rail; 3. Divider plate; 301. Liquid passage hole; 302. Moving groove; 4. Storage tank; 5. Stirring rod; 6. First conical block; 7. Second conical block; 8. Cam block; 801. Cam groove; 9. Fixing rod; 10. First spring; 11. Storage tank; 12. Cylindrical shell; 13. Liquid inlet pipe; 131. One-way liquid inlet valve; 14. Support rod; 15. Drain pipe; 151. One-way drain valve; 16. Piston plate; 17. Moving rod; 18. Sealing block; 19. Float block; 20. Fixing block; 21. Adjusting rod; 22. Second spring; 23. Press switch. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please see Figures 1 to 9This invention provides a technical solution: a dialysate supply device for hemodialysis, comprising a tank 1, with slide rails 2 fixedly connected to symmetrical positions on both sides of the inner wall of the tank 1, and partition plates 3 that separate the inner wall of the tank 1 being moved vertically on the slide rails 2. The inner walls at both ends of the tank 1 respectively form a supply chamber 101 and a mixing chamber 102. First springs 10 that guide the partition plates 3 to reset and move are fixedly connected to the opposite surfaces of the partition plates 3 and the top of the tank 1 on both sides. A storage tank 4 for storing dialysis dry powder is passed through and fixedly connected to the end of the tank 1, and a liquid storage tank 11 for storing medicine is fixedly connected to the end of the tank 1 near the storage tank 4. A stirring rod 5 driven by a power mechanism is passed through and rotatably connected to the outer contour of the tank 1 near the mixing chamber 102. The storage tank 4 is provided with a feeding mechanism and a draining mechanism for quantitatively dispensing the dialysis dry powder and medicine inside the storage tank 4 and the liquid storage tank 11 into the mixing chamber 102.

[0023] In use, a tank body 1 is provided, and a slide rail 2 is provided on the tank body 1. The slide rail 2 is fixedly supported on the inner wall of the tank body 1. A partition plate 3 is provided on the slide rail 2, which can be raised and lowered and connected to the slide rail 2. The partition plate 3 is in close contact with the inner wall of the tank body 1, so the partition plate 3 can divide the two ends of the tank body 1 into a supply chamber 101 and a mixing chamber 102. A first spring 10 is provided on the partition plate 3 and is fixedly supported on the partition plate 3, so that the first spring 10 can support the position of the partition plate 3. The dialysis dry powder is first sealed and stored in the inner wall of the storage tank 4 provided on the tank body 1 to prevent the dialysis dry powder from being contaminated and damp. The liquid storage tank 11 on the body 1 stores the drug solution mixed with dialysis dry powder on the inner wall of the liquid storage tank 11. Through the feeding mechanism and the draining mechanism on the storage tank 4, the feeding mechanism and the draining mechanism can quantitatively feed the dialysis dry powder and drug solution into the partition plate 3 inside the mixing chamber 102 in a proportional manner, so as to avoid the problem of uneven mixing caused by excessive feeding of dialysis dry powder clumping. As the drug solution and dialysis dry powder on the partition plate 3 increase, the partition plate 3 can move in the downward vertical direction under the action of gravity, and the first spring 10 is in a stretched state under the action of the partition plate 3, so that the first spring 10 can guide the partition plate 3 to reset in the upward vertical direction later.

[0024] The stirring rod 5 installed on the tank 1 can rotate on a fixed axis on the inner wall of the mixing chamber 102. The power mechanism is a motor after being energized, and the output shaft of the motor is coaxially fixed to the stirring rod 5. When the motor is started, the motor can drive the stirring rod 5 to rotate on a fixed axis on the inner wall of the mixing chamber 102. The stirring rod 5 can stir the dialysis dry powder and medicine inside the mixing chamber 102, thereby improving the mixing efficiency.

[0025] Example 2: Building upon Example 1, the following is a further step: The feeding mechanism includes a first conical block 6 that is connected to the inner wall of the storage tank 4 near the bottom and is able to move up and down to seal the bottom outlet end of the storage tank 4. The end of the first conical block 6 is fixedly connected to a second conical block 7 that quantitatively feeds the dialysis dry powder into the storage tank 4.

[0026] A cam block 8 is coaxially fixed to the stirring rod 5 to drive the first conical block 6 to move up and down reciprocally. The cam block 8 has a cam groove 801. A fixed rod 9 is fixedly connected to the bottom end of the first conical block 6 so that the cam groove 801 can drive the first conical block 6 to move up and down reciprocally. The end of the fixed rod 9 away from the first conical block 6 passes through the inner wall of the cam groove 801 and is movably connected.

[0027] In use, the first conical block 6 is installed on the storage tank 4, and the first conical block 6 moves up and down on the storage tank 4. Figure 6 As shown, in the initial state, the first conical block 6 is in a sealed state against the outlet end of the bottom of the storage tank 4 to prevent the dialysis dry powder inside the storage tank 4 from leaking. The second conical block 7 is fixedly supported on the first conical block 6 by the second conical block 7 set on the first conical block 6, and the second conical block 7 is located at the top of the outlet end of the bottom of the storage tank 4. Then the dialysis dry powder inside the storage tank 4 can enter the outlet end of the bottom of the storage tank 4 along the arc-shaped inclined surface.

[0028] The stirring rod 5 is equipped with a cam block 8, which is coaxially and fixedly connected to the stirring rod 5. This allows the stirring rod 5 to drive the cam block 8 to rotate synchronously on a fixed axis. A fixing rod 9 is fixedly supported on the first conical block 6. A cam groove 801 on the cam block 8 movably supports the end of the fixing rod 9 against the inner wall of the cam groove 801. As the cam block 8 rotates on its fixed axis, the fixing rod 9, under the action of the cam groove 801, can pull the first conical block 6 and the second conical block 7. Simultaneously, the first conical block 6 and the second conical block 7 move in a downward vertical direction, and the second conical block 7 can fit against the inner wall of the bottom outlet end of the storage tank 4 to prevent the leakage of dialysis dry powder inside the storage tank 4. At the same time, the first conical block 6 moves away from the bottom outlet end of the storage tank 4, so that the dialysis dry powder inside the bottom outlet end of the storage tank 4 can fall quantitatively into the mixing chamber 102. Meanwhile, the arc-shaped inclined surface of the first conical block 6 can guide the dialysis dry powder to be evenly scattered inside the mixing chamber 102.

[0029] When the first conical block 6 moves upward in a vertical direction, it can seal the outlet end of the bottom of the storage tank 4. The second conical block 7 is located at the top of the outlet end of the bottom of the storage tank 4, so that the outlet end of the bottom of the storage tank 4 can quantitatively collect the dialysis powder. With the fixed rod 9 pulling the first conical block 6 and the second conical block 7 to move up and down and back and forth, the dialysis powder inside the storage tank 4 is quantitatively and uniformly fed into the mixing chamber 102, avoiding the contamination caused by the traditional blade cutting the powder bag, and significantly improving the purity of the dialysis solution preparation and clinical safety.

[0030] Example 3: Building upon Example 2, the following is a further step: The drainage mechanism includes cylindrical shells 12 that are symmetrically connected to both sides of the end of the tank 1. Both ends of the cylindrical shells 12 are connected to inlet pipes 13 that transport the liquid inside the storage tank 11 to the inside of the cylindrical shells 12. The ends of the inlet pipes 13 on both sides are connected to the inner wall of the storage tank 11.

[0031] Both cylindrical shells 12 on both sides are connected to piston plates 16 that are movable up and down to draw and discharge the liquid medicine inside the storage tank 11. Both piston plates 16 are connected to drain pipes 15. Support rods 14 are fixedly connected to the outer contour of the bottom end of the drain pipes 15 on both sides, which are driven by the fixing rod 9 to move the piston plates 16 up and down. The support rods 14 are connected to the fixing rod 9. The inner walls of the adjacent ends of the inlet pipe 13 and the drain pipe 15 on each side are respectively fixedly connected to one-way inlet valves 131 and one-way drain valves 151 for the piston plates 16 to draw and discharge the liquid medicine inside the storage tank 11 in a quantitative manner.

[0032] In use, the cylindrical shell 12 on the tank body 1 is fixedly supported on the tank body 1, and the liquid inlet pipe 13 on the cylindrical shell 12 connects the storage tank 11 and the inner wall of the cylindrical shell 12. The drain pipe 15 on the piston plate 16 on the cylindrical shell 12 is fixedly supported on the piston plate 16, so the drain pipe 15 and the piston plate 16 can move up and down on the inner wall of the cylindrical shell 12. The support rod 14 on the drain pipe 15 is fixedly supported on the fixed rod 9. As the fixed rod 9 pushes the first conical block 6 and the second conical block 7 to move up and down, the support rod 14 can synchronously drive the drain pipe 15 and the piston plate 16 to move up and down and reciprocate on the inner wall of the cylindrical shell 12 under the action of the fixed rod 9.

[0033] like Figure 6 and Figure 7As shown, through the one-way inlet valve 131 and one-way outlet valve 151 installed on the inlet pipe 13 and outlet pipe 15, when the support rod 14 pulls the outlet pipe 15 and piston plate 16 to move in a downward vertical direction, the internal air pressure at the top of the cylindrical shell 12 is in a negative pressure state, and the one-way inlet valve 131 is in the open state and the one-way outlet valve 151 is in the closed state. Thus, the piston plate 16 can quantitatively draw the liquid from the storage tank 11 into the cylindrical shell 12 through the inlet pipe 13. When the support rod 14 pulls the outlet pipe 15 and piston plate 16 to move in an upward vertical direction, the pressure at the top of the cylindrical shell 12 is negative. The internal air pressure is positive, and the one-way inlet valve 131 is closed while the one-way outlet valve 151 is open. Thus, the piston plate 16 can discharge the liquid medicine inside the cylindrical shell 12 through the outlet pipe 15 into the mixing chamber 102 and mix it with the dialysis powder. This achieves quantitative extraction and discharge of the liquid medicine from the storage tank 11 to the mixing chamber 102, with high flow control accuracy, effectively ensuring the mixing ratio of dialysis powder and liquid medicine, and improving the consistency of dialysis fluid quality. With the stirring rod 5 rotating on a fixed axis, the stirring rod 5 can stir and mix the dialysis powder and liquid medicine inside the mixing chamber 102, improving the mixing efficiency of the liquid medicine and dialysis powder.

[0034] Example 4: Building upon Example 3, the following is a further step: The partition plate 3 is provided with a supply device for discharging the mixed dialysate into the supply chamber 101. The supply device includes liquid passage holes 301 on both sides of the partition plate 3 for conveying the mixed dialysate from the mixing chamber 102 into the supply chamber 101. The partition plate 3 also has moving grooves 302 on both sides of the bottom. The inner walls of the moving grooves 302 on both sides are horizontally connected to moving rods 17. The opposite ends of the moving rods 17 on both sides are fixedly connected to sealing blocks 18 to seal the liquid passage holes 301 on the adjacent side.

[0035] A float 19 is connected to the partition plate 3 through which it can be raised and lowered. A fixed block 20 is fixedly connected to the bottom of the float 19. An adjusting rod 21 that pushes the moving rod 17 to move towards or away from each other is rotatably connected to the fixed block 20 at symmetrical positions on both sides. The ends of the adjusting rods 21 on both sides that are away from the fixed block 20 are respectively rotatably connected to the moving rod 17 on the adjacent side.

[0036] A push switch 23 for controlling the start and stop of the stirring rod 5 is fixedly connected to the partition plate 3 near the bottom of the float 19. A second spring 22 for guiding the float 19 to reset is fixedly connected to the opposite surface of the fixed block 20 and the partition plate 3.

[0037] In use, the liquid passage 301 on the partition plate 3 connects the inner walls of the mixing chamber 102 and the supply chamber 101. The moving groove 302 on the partition plate 3, with a moving rod 17 on it, allows the moving rod 17 to move horizontally along the inner wall of the moving groove 302. A sealing block 18 on the moving rod 17 further facilitates this connection. Figure 8 As shown, the sealing block 18 is located at the bottom of the liquid passage 301, which enables the sealing block 18 to seal the liquid passage 301 and prevent the leakage of the drug solution and dialysis powder to be mixed inside the mixing chamber 102.

[0038] The float 19 on the partition plate 3 and the fixed block 20 on the float 19 enable the float 19 to drive the fixed block 20 to move up and down on the partition plate 3. The adjusting rod 21 on the fixed block 20 allows the two ends of the adjusting rod 21 to be rotatably supported on the moving rod 17 and the fixed block 20 respectively. The second spring 22 on the fixed block 20 enables the second spring 22 to support the position of the float 19.

[0039] In actual use, as the amount of medication and dialysis powder on the separator 3 increases, the separator 3 moves vertically downwards. When the medication on the separator 3 is higher than the float 19, and the end of the moving rod 17 abuts against the slide rail 2, the medication exerts an upward buoyancy force on the float 19. When the separator 3 moves downwards to its limit position, the mixed dialysis fluid reaches the preset level, and the moving rod 17 is located at the bottom of the slide rail 2. Under the action of buoyancy, the float 19 can pull the fixed block 20 downwards. The adjustment rod 21 moves vertically upwards, and the fixing block 20 squeezes the second spring 22, so that the adjustment rod 21 can push the two moving rods 17 to move in opposite directions under the action of the fixing block 20. The end of the moving rod 17 abuts against the bottom of the slide rail 2 and locks the position of the partition plate 3. At the same time, the moving rod 17 drives the sealing block 18 to move in opposite directions synchronously and releases the seal on the liquid passage 301. Then, the dialysate mixed inside the mixing chamber 102 can be supplied to the inside of the supply chamber 101 through the liquid passage 301 under the action of gravity.

[0040] When the liquid level on the partition plate 3 is lower than that on the float 19, the second spring 22, under its own elastic force, can pull the float 19 and the fixed block 20 to move downward in a vertical direction to reset. At the same time, the adjusting rod 21, under the action of the fixed block 20, can pull the moving rod 17 to move in opposite directions to reset. The end of the moving rod 17 is disengaged from the bottom end of the slide rail 2, so that the first spring 10 can pull the partition plate 3 to move upward in a vertical direction to reset.

[0041] The push switch 23 is installed on the partition plate 3, and the push switch 23 is electrically connected to the motor on the stirring rod 5, such as...Figure 3 and Figure 4 As shown, in the initial state, the second spring 22 pulls the float 19 to press the switch 23, and the motor can drive the stirring rod 5 to stir the inside of the mixing chamber 102. When the fixed block 20 pushes the moving rod 17 and the sealing block 18 to move towards each other and releases the seal on the liquid passage 301, the float 19 moves and disengages from the switch 23. At this time, the switch 23 cuts off the power to the motor on the stirring rod 5, ensuring that only fully mixed dialysate can enter the supply stage, avoiding the flow of incompletely dissolved liquid into the dialyzer and improving treatment safety.

[0042] Furthermore, the existing device can quantitatively add dialysis powder to the drug solution for uniform mixing during actual use, making it convenient to use and superior to traditional products.

[0043] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed directly based on existing technical knowledge without any doubt. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0044] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dialysate supply device for hemodialysis, characterized in that: The container includes a tank (1), on which slide rails (2) are fixedly connected at symmetrical positions on both sides of the inner wall of the tank (1). A partition plate (3) is connected to the slide rails (2) to separate the inner wall of the tank (1). A supply chamber (101) and a mixing chamber (102) are formed on the inner walls at both ends of the tank (1). First springs (10) are fixedly connected to the sides of the partition plate (3) opposite to the top of the tank (1) to guide the partition plate (3) to reset. The end of the tank (1) is penetrated... A storage tank (4) for storing dialysis dry powder is fixedly connected to the tank (1), and a liquid storage tank (11) for storing medicine is fixedly connected to the end of the tank (1) near the storage tank (4). A stirring rod (5) driven by a power mechanism is connected to the outer contour of the tank (1) near the mixing chamber (102) and rotates on a fixed axis. The storage tank (4) is provided with a feeding mechanism and a draining mechanism for quantitatively discharging the dialysis dry powder and medicine inside the storage tank (4) and the liquid storage tank (11) into the mixing chamber (102).

2. The dialysate supply device for hemodialysis according to claim 1, characterized in that: The feeding mechanism includes a first conical block (6) that seals the bottom outlet of the storage tank (4) by passing through the inner wall near the bottom and moving up and down. The end of the first conical block (6) is fixedly connected to a second conical block (7) that quantitatively feeds the dialysis dry powder inside the storage tank (4).

3. A dialysate supply device for hemodialysis according to claim 2, characterized in that: A cam block (8) is coaxially fixed to the stirring rod (5) to drive the first conical block (6) to move up and down reciprocally. A cam groove (801) is provided on the cam block (8). A fixed rod (9) is fixedly connected to the bottom end of the first conical block (6) to drive the first conical block (6) to move up and down reciprocally. The end of the fixed rod (9) away from the first conical block (6) passes through the inner wall of the cam groove (801) and is movably connected.

4. A dialysate supply device for hemodialysis according to claim 3, characterized in that: The draining mechanism includes cylindrical shells (12) that are symmetrically connected to both sides of the end of the tank (1). The ends of the cylindrical shells (12) on both sides are connected to inlet pipes (13) that transport the liquid inside the storage tank (11) to the inside of the cylindrical shells (12). The ends of the inlet pipes (13) on both sides are connected to the inner wall of the storage tank (11).

5. A dialysate supply device for hemodialysis according to claim 4, characterized in that: Both cylindrical shells (12) on both sides are connected to piston plates (16) that are raised and lowered to extract and discharge the liquid inside the storage tank (11). Both piston plates (16) are connected to drain pipes (15). The outer contour of the bottom end of the drain pipes (15) on both sides is connected to a support rod (14) for the fixed rod (9) to drive the piston plates (16) to move up and down. The support rod (14) is connected to the fixed rod (9). The inner wall of the adjacent end of the inlet pipe (13) and the drain pipe (15) on each side is connected to a one-way inlet valve (131) and a one-way drain valve (151) for the piston plate (16) to extract and discharge the liquid inside the storage tank (11) in a quantitative manner.

6. A dialysate supply device for hemodialysis according to claim 1, characterized in that: The partition plate (3) is provided with a supply device for discharging the mixed dialysate into the supply chamber (101). The supply device includes a liquid passage hole (301) on both sides of the partition plate (3) for conveying the mixed dialysate in the mixing chamber (102) to the supply chamber (101). A moving groove (302) is provided on both sides of the bottom of the partition plate (3). The inner walls of the moving groove (302) on both sides are horizontally connected to a moving rod (17). The opposite ends of the moving rod (17) on both sides are fixedly connected to a sealing block (18) for sealing the liquid passage hole (301) on the adjacent side.

7. A dialysate supply device for hemodialysis according to claim 6, characterized in that: A float (19) is connected to the partition plate (3) and moves up and down. A fixed block (20) is fixedly connected to the bottom of the float (19). An adjustment rod (21) that pushes the moving rod (17) to move towards or away from each other is rotatably connected to the fixed block (20) on both sides of the fixed block (20). The end of the adjustment rod (21) on both sides away from the fixed block (20) is rotatably connected to the moving rod (17) on the adjacent side.

8. A dialysate supply device for hemodialysis according to claim 7, characterized in that: A push switch (23) for controlling the start and stop of the stirring rod (5) is fixedly connected to the bottom of the partition plate (3) near the float (19). A second spring (22) for guiding the float (19) to reset is fixedly connected to the opposite surface of the fixed block (20) and the partition plate (3).

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