Dialysate supply device for hemodialysis

Abstract

The invention relates to the technical field of dialysate preparation, in particular to a dialysate supply device for hemodialysis, which comprises a supply device, the supply device comprises a liquid storage tank for storing mixed dialysate, a dialysis device is arranged on one side of the liquid storage tank, the mixed dialysate in the liquid storage tank is supplied into the dialysis device, and the dialysis device is arranged on the other side of the liquid storage tank. The device further comprises a dialysate preparation box. According to the dialysis dry powder bag preparation device, through the arrangement of the storage box, the sliding plate, the blade and the driving assembly, a medical worker puts a bag stored with dialysis dry powder into the storage box, then the storage box is pushed into the preparation cavity, and then the driving assembly drives the blade to move to scratch the dialysis dry powder bag in a sealed environment; the dialysis dry powder bag is provided with the through holes, dirt and damp caused by contact of the dialysis dry powder and outside air are reduced, the blades slide in the through holes in a reciprocating mode, the dry powder bag can be scratched, meanwhile, the caked dry powder can be preliminarily crushed, and the arranged grinding assembly is matched, so that the dry powder can be further ground.

Description

Technical Field

[0001] The present invention relates to the technical field of dialysate preparation, and in particular to a dialysate supply device for hemodialysis. Background Art

[0002] Hemodialysis is the process of drawing the patient's blood out of the body and passing it through a purification device to remove pathogenic substances or waste in the blood and purify the blood to achieve the purpose of treating the disease. In the process of producing hemodialysis fluid, it is necessary to mix the dialysis dry powder with the drug solution in the supply device to form the dialysis fluid and then supply the dialysis fluid to the dialysis device.

[0003] The patent with application number CN202222843905.8 discloses a solid-liquid mixing stirring device for preparing hemodialysis powder, including a storage barrel body and a stirring mechanism installed on the storage barrel body. The storage barrel body is composed of an outer shell and an inner liner. The outer shell and the inner liner are an integrated structure, and a placement cavity for storing coolant is opened between the outer shell and the inner liner. A sealing plug is inserted into the liquid inlet at the top of the placement cavity, and a waterproof sealing ring is covered on the sealing plug.

[0004] However, when the above patent is used, it is necessary to open the top cover of the barrel and pour the dialysis dry powder. The dry powder is in contact with the outside air for a long time during the pouring process, which may cause the dry powder to be contaminated and damp. In addition, the above patent cannot handle the agglomerated dry powder when in use, which may cause the agglomerated dry powder to be difficult to completely dissolve or evenly disperse in the drug solution, resulting in an uneven proportion of the components of the mixture. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a dialysate supply device for hemodialysis to solve the problem that the dialysate dry powder is easily exposed to the outside air during the preparation of the dialysate, causing it to be contaminated and damp, and the dry powder that has become damp and agglomerated cannot be treated.

[0006] Based on the above purpose, the present invention provides a dialysate supply device for hemodialysis, comprising a supply device, wherein the supply device comprises a liquid storage tank for storing mixed dialysate, a dialysis device is arranged on one side of the liquid storage tank, and the mixed dialysate in the liquid storage tank is supplied to the dialysis device, and further comprises:

[0007] A dialysate preparation box is arranged on the top of the liquid storage box, comprising a water tank and a mixing box overlapped with each other, and a liquid inlet is arranged on one side of the water tank;

[0008] A first partition disposed horizontally in the mixing box is provided, the first partition divides the mixing box into a preparation chamber and a mixing chamber, and a second partition disposed vertically in the preparation chamber is provided, the second partition divides the preparation chamber into a powder processing chamber and a liquid processing chamber;

[0009] A pump body is provided in the liquid processing chamber, and the pump body is fixedly connected and arranged on the top of the first partition. The water inlet end of the pump body is connected with an infusion pipe, and the other end of the infusion pipe is passed through the mixing box and the water tank and is located in the water tank. A discharge pipe is provided at the water outlet end of the pump body, and the discharge pipe passes through the first partition downward. A first solenoid valve is provided in the discharge pipe to control the liquid in the discharge pipe to accurately discharge the liquid into the mixing box.

[0010] A partition plate is provided in the powder processing chamber, a through hole is provided on the partition plate, a sliding plate is provided at the bottom of the partition plate in a sliding connection, the sliding plate can slide horizontally at the bottom of the partition plate, a sliding groove is provided at the bottom of the sliding plate, at least one group of blades is provided on the top of the sliding plate, and the blades pass through the partition plate upward through the through hole;

[0011] A storage box for placing a dialysis dry powder bag is provided in the preparation chamber, and two sides of the storage box are slidably connected to the side walls in the preparation chamber. The storage box is located on the upper side of the partition plate, and continuous through holes corresponding to the blades are opened at the bottom and rear side of the storage box;

[0012] A grinding assembly is arranged in the preparation chamber and located at the lower side of the partition plate, and is used for grinding fine agglomerated dry powder;

[0013] A feeding assembly is arranged in the preparation chamber and located at the lower side of the grinding assembly, and is used to control the accurate feeding of the dry powder ground by the grinding assembly into the mixing box;

[0014] A driving assembly for driving the sliding plate to move back and forth is arranged in the preparation chamber. The driving assembly drives the sliding plate to slide horizontally at the bottom of the partition plate. The sliding plate drives the blade to slide in the through hole to cut the dialysis dry powder bag placed in the storage box. The dialysis dry powder is discharged to the mixing box through the through hole, the through hole, the grinding assembly and the feeding assembly in sequence;

[0015] A liquid outlet pipe for supplying liquid to the liquid storage tank is arranged at the bottom of the mixing box, a second solenoid valve is arranged on the liquid outlet pipe, a second stirring rod is arranged in the mixing box, and a first motor for driving the second stirring rod to rotate is arranged on one side of the mixing box.

[0016] Furthermore, the grinding assembly includes a grinding table, which is arranged in the preparation chamber and located at the lower side of the partition plate. The grinding table is funnel-shaped, and a grinding hole penetrating downward is opened at the center of the top of the grinding table.

[0017] Furthermore, the unloading assembly includes a discharge platform, which is arranged in the preparation chamber and located at the lower side of the grinding table. The discharge platform is funnel-shaped, and a discharge hole penetrating downward is opened at the top center of the discharge platform, and the discharge hole is connected to the mixing box.

[0018] Furthermore, the driving assembly includes a driving block, in which two groups of symmetrically arranged servo motors are arranged, a rotating rod is arranged on the top of the driving block, the bottom of the rotating rod is connected to the output end of a group of servo motors, the rotating rod is upwardly penetrated through the grinding hole to provide a grinding table, a grinding block is fixedly sleeved on the rotating rod, the grinding block is located in the grinding hole, and a grinding channel for grinding agglomerated powder is formed between the grinding block and the grinding hole, a cross bar is fixedly connected to the top of the rotating rod, a slider is arranged on the top of the other end of the cross bar, the slider is slidably matched with the sliding groove, an auger rod is arranged on the bottom of the driving block, the top of the auger rod is connected to the output end of another group of servo motors, and the auger rod is penetrated through the discharge hole to provide the discharge hole.

[0019] Furthermore, the partition plate is a hollow plate, and two groups of sealed blocks are slidingly connected inside the partition plate, and the two groups of sealed blocks are symmetrically arranged on both sides of the through hole. A bidirectional screw is rotatably connected inside the partition plate, and moving blocks are respectively screwed on the external threads on both sides of the bidirectional screw. The two groups of moving blocks are respectively fixedly connected to the two groups of sealed blocks, and a transmission assembly for driving the bidirectional screw to rotate is arranged on the top of the partition plate.

[0020] Furthermore, the transmission assembly includes a support seat, a gear rod is rotatably connected between the support seats, a first transmission rod is rotatably connected to one side of the support seat, the first transmission rod is fixedly connected to the gear rod, a transmission belt for transmission is provided between the first transmission rod and the bidirectional screw rod, hollow rods are respectively fixedly connected to the two side surfaces on the inner side of the support seat, two groups of hollow rods are slidably sleeved on the two ends of the outer surface of the gear rod, a sliding block is slidably connected to the partition plate, a side support is fixedly connected to the partition plate, a return spring is provided between the side support and the sliding block, one end of the return spring is fixedly connected to the side support, and the other end is fixedly connected to the sliding block, a belt is connected to the other side of the sliding block, the other end of the belt is connected to the storage box after passing through the hollow rod, and a rack meshing with the gear rod is provided on the belt.

[0021] Furthermore, a first stirring rod is provided in the liquid storage tank, and a second motor for driving the first stirring rod to rotate is fixedly connected to one side of the liquid storage tank. A heating module is also provided in the liquid storage tank, and the heating module is used to heat the dialysate stored in the liquid storage tank.

[0022] Furthermore, the bottom of the inner cavity of the storage box is sloping on both sides toward the center.

[0023] Beneficial effects of the present invention: As can be seen from the above description, the present invention provides a dialysate supply device for hemodialysis. Through the storage box, sliding plate, blade and driving assembly, medical staff put the bag storing the dialysis dry powder into the storage box, and then push the storage box into the preparation chamber and drive the blade to move through the driving assembly to cut the dialysis dry powder bag in a sealed environment, thereby reducing the contamination and moisture caused by the contact between the dialysis dry powder and the outside air. Moreover, the reciprocating sliding of the blade in the through hole can not only cut the dry powder bag, but also preliminarily crush the agglomerated dry powder, and cooperate with the provided grinding assembly to further grind the dry powder, thereby avoiding the agglomerated dry powder being difficult to completely dissolve or evenly disperse in the medicine solution, resulting in an uneven proportion of the components of the mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the water tank according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the liquid storage tank according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the dialysate preparation box according to an embodiment of the present invention;

[0029] Figure 5 For the embodiment of the present invention Figure 4 A is a schematic diagram of the enlarged structure of the middle part;

[0030] Figure 6 It is a schematic diagram of a side cross-sectional structure of the dialysate preparation box according to an embodiment of the present invention;

[0031] Figure 7 It is a partial cross-sectional structural schematic diagram of the dialysate preparation box according to an embodiment of the present invention;

[0032] Figure 8 For the embodiment of the present invention Figure 7 Schematic diagram of the enlarged structure of B;

[0033] Fig. 9 This is a schematic structural diagram of the partition board according to an embodiment of the present invention from a first viewing angle;

[0034] Fig.10 For the embodiment of the present invention Fig. 9 Schematic diagram of the enlarged structure of C in the middle;

[0035] Fig.11 This is a schematic structural diagram of the partition board according to an embodiment of the present invention from a second viewing angle;

[0036] Fig.12 It is a schematic diagram of a partial cross-sectional structure of the partition board according to an embodiment of the present invention;

[0037] Fig.13 This is a schematic diagram of the structure of the driving component according to an embodiment of the present invention;

[0038] Fig.14 This is a schematic diagram of the structure of the storage box from a first viewing angle according to an embodiment of the present invention;

[0039] Fig.15 This is a schematic diagram of the storage box structure from a second viewing angle according to an embodiment of the present invention;

[0040] Fig.16 Schematic diagram of the internal structure of the driving block according to an embodiment of the present invention.

[0041] The markings in the figure are:

[0042] 1. Supply device; 2. Water tank; 3. Mixing box; 4. Liquid storage tank; 5. Dialysis device; 6. Infusion tube; 7. Liquid inlet; 8. First stirring rod; 9. Second stirring rod; 10. Drain pipe; 11. Liquid outlet pipe; 12. Pump body; 13. Storage box; 1301. Through hole; 14. Grinding table; 15. Discharging table; 16. Driving block; 17. Rotating rod; 18. Grinding block; 19. Cross bar; 2 0. Sliding plate; 21. Auger rod; 22. Partition plate; 2201. Through hole; 2202. Support seat; 2203. Hollow rod; 2204. Tooth rod; 2205. Sliding block; 2206. Side support; 2207. Return spring; 2208. Belt; 2209. Rack; 2210. First transmission rod; 2211. Transmission belt; 2212. Bidirectional screw rod; 2213. Sealed block. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0044] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 As shown, a dialysate supply device for hemodialysis includes a supply device 1, wherein the supply device 1 includes a liquid storage tank 4 for storing mixed dialysate, a dialysis device 5 is arranged on one side of the liquid storage tank 4, and the mixed dialysate in the liquid storage tank 4 is supplied to the dialysis device 5, and further includes:

[0046] The dialysate preparation box is arranged on the top of the liquid storage tank 4, and comprises a water tank 2 and a mixing tank 3 which are overlapped with each other, and a liquid inlet 7 is arranged on one side of the water tank 2;

[0047] A first partition disposed horizontally is provided in the mixing box 3, and the first partition divides the mixing box 3 into a preparation chamber and a mixing chamber. A second partition disposed vertically is provided in the preparation chamber, and the second partition divides the preparation chamber into a powder processing chamber and a liquid processing chamber.

[0048] A pump body 12 is provided in the liquid processing chamber, and the pump body 12 is fixedly connected and arranged on the top of the first partition. The water inlet end of the pump body 12 is connected with a liquid infusion pipe 6, and the other end of the liquid infusion pipe 6 passes through the mixing box 3 and the water tank 2 and is located in the water tank 2. A discharge pipe 10 is provided at the water outlet end of the pump body 12, and the discharge pipe 10 passes through the first partition downward. A first solenoid valve is provided in the discharge pipe 10 to control the liquid in the discharge pipe 10 to accurately discharge the liquid into the mixing box 3;

[0049] A partition plate 22 is provided in the powder processing chamber, a through hole 2201 is provided on the partition plate 22, a knife groove for accommodating a blade is provided on the rear side of the partition plate 22, a sliding plate 20 is provided in sliding connection at the bottom of the partition plate 22, the sliding plate 20 can slide horizontally at the bottom of the partition plate 22, a sliding groove is provided at the bottom of the sliding plate 20, at least one group of blades is provided on the top of the sliding plate 20, and the blades pass through the partition plate 22 upward through the through hole 2201;

[0050] A storage box 13 for placing a dialysis dry powder bag is provided in the preparation chamber. Both sides of the storage box 13 are slidably connected to the side walls in the preparation chamber. The storage box 13 is located on the upper side of the partition plate 22. The bottom and rear side of the storage box 13 are provided with continuous through holes 1301 corresponding to the blades.

[0051] A grinding assembly, arranged in the preparation chamber and located on the lower side of the partition plate 22, is used to grind fine agglomerated dry powder;

[0052] A feeding assembly is arranged in the preparation chamber and located at the lower side of the grinding assembly, and is used to control the accurate feeding of the dry powder ground by the grinding assembly into the mixing box 3;

[0053] A driving assembly for driving the sliding plate 20 to move back and forth is arranged in the preparation chamber. The driving assembly drives the sliding plate 20 to slide horizontally at the bottom of the partition plate 22. The sliding plate 20 drives the blade to slide in the through hole 1301 to cut the dialysis dry powder bag placed in the storage box 13. The dialysis dry powder is discharged to the mixing box 3 through the through hole 1301, the through hole 2201, the grinding assembly and the feeding assembly in sequence;

[0054] A liquid outlet pipe 11 for supplying liquid to the liquid storage tank 4 is provided at the bottom of the mixing box 3, a second solenoid valve is provided on the liquid outlet pipe 11, a second stirring rod 9 is provided in the mixing box 3, and a first motor for driving the second stirring rod 9 to rotate is provided on one side of the mixing box 3;

[0055] In this embodiment, the medical staff first adds liquid medicine into the water tank 2, then pulls out the storage box 13, puts the bag containing the dialysis dry powder into the storage box 13, and then pushes the storage box 13 into the preparation chamber, starts the driving assembly to drive the sliding plate 20 to slide horizontally back and forth at the bottom of the partition plate 22, and the sliding plate 20 drives the blade to move out of the knife groove and slide back and forth in the through hole 1301 to cut the dialysis dry powder bag. At the same time, the reciprocating movement of the blade can also preliminarily crush the agglomerated dry powder, and the dialysis dry powder falls into the grinding assembly through the through hole 1301 and the through hole 2201 in turn, and the grinding assembly can further crush the agglomerated dry powder, and the ground dry powder falls downward into the unloading assembly, and the unloading assembly can accurately unload the material into the mixing box 3 according to the proportioning requirements;

[0056] At the same time, the pump body 12 is started to pump the liquid medicine in the water tank 2 into the discharge pipe 10 through the infusion pipe 6, and then the first solenoid valve arranged in the discharge pipe 10 can control the liquid medicine to be accurately discharged into the mixing box 3 according to the liquid medicine ratio;

[0057] The drug solution and the dialysis dry powder are mixed in the mixing box 3. Starting the first motor to drive the second stirring rod 9 to rotate can accelerate the mixing efficiency and mixing effect of the drug solution. Starting the second solenoid valve in the liquid outlet pipe 11 can discharge the mixed dialysate in the mixing box 3 into the liquid storage tank 4 to supply the dialysate to the dialysis device 5.

[0058] The device is provided with a storage box 13, a sliding plate 20, a blade and a driving component. The medical staff puts the bag containing the dialysis dry powder into the storage box 13, and then pushes the storage box 13 into the preparation chamber. The driving component drives the blade to move and cut the dialysis dry powder bag in a sealed environment to reduce the contamination and moisture caused by the contact between the dialysis dry powder and the outside air. In addition, the reciprocating sliding of the blade in the through hole 1301 can not only cut the dry powder bag, but also preliminarily break the agglomerated dry powder. In combination with the provided grinding component, the dry powder can be further ground to avoid the agglomerated dry powder being difficult to completely dissolve or evenly disperse in the liquid medicine, resulting in an uneven proportion of the components of the mixture.

[0059] Preferably, the grinding assembly includes a grinding table 14, which is arranged in the preparation chamber and located at the lower side of the partition plate 22, and the grinding table 14 is funnel-shaped, and a grinding hole penetrating downward is opened at the center of the top of the grinding table 14;

[0060] The material discharge assembly includes a discharge platform 15, which is arranged in the preparation chamber and located at the lower side of the grinding platform 14. The discharge platform 15 is funnel-shaped, and a discharge hole penetrating downward is opened at the top center of the discharge platform 15, and the discharge hole is connected to the mixing box 3;

[0061] The driving assembly includes a driving block 16, in which two groups of symmetrically arranged servo motors are arranged, a rotating rod 17 is arranged on the top of the driving block 16, and the bottom of the rotating rod 17 is connected to the output end of one group of servo motors, the rotating rod 17 passes through the grinding table 14 upward through the grinding hole, a grinding block 18 is fixedly sleeved on the rotating rod 17, the grinding block 18 is located in the grinding hole, and a grinding channel for grinding agglomerated powder is formed between the grinding block 18 and the grinding hole, a cross bar 19 is fixedly connected to the top of the rotating rod 17, a slider is arranged on the top of the other end of the cross bar 19, and the slider is slidably matched with the sliding groove, an auger rod 21 is arranged at the bottom of the driving block 16, the top of the auger rod 21 is connected to the output end of another group of servo motors, and the auger rod 21 passes through the discharge hole to set the discharge hole;

[0062] In this embodiment, the bidirectional motor drives the rotating rod 17 to rotate, and the rotating rod 17 drives the cross bar 19 and the slider to revolve around the rotating rod 17 as the center. The slider also slides in the sliding groove at the bottom of the sliding plate 20 during the revolution, so that the sliding plate 20 can be driven to move back and forth with the continuous rotation of the rotating rod 17, thereby driving the blade to reciprocate in the through hole 1301 to cut the dry powder bag and preliminarily crush the agglomerated dry powder.

[0063] At the same time, the rotation of the rotating rod 17 will drive the grinding block 18 to rotate. The outer surface of the grinding block 18 is provided with grinding balls for grinding the agglomerated dry powder, which can further grind the dry powder passing through the grinding channel to completely grind the dry powder, thereby avoiding the agglomerated dry powder being difficult to completely dissolve or evenly disperse in the liquid medicine, resulting in an uneven proportion of the components of the mixture, thereby improving the stability of the liquid medicine mixing;

[0064] The ground dry powder falls into the discharge platform 15 through the grinding channel, and the discharge of the dry powder can be accurately controlled by controlling the rotation speed and number of revolutions of the auger rod 21.

[0065] Preferably, the partition plate 22 is a hollow plate, and two groups of sealed blocks 2213 are provided in a sliding connection inside the partition plate 22, and the two groups of sealed blocks 2213 are symmetrically arranged on both sides of the through hole 2201, and a bidirectional screw rod 2212 is provided in a rotatable connection inside the partition plate 22, and moving blocks are respectively screwed on the external threads on both sides of the bidirectional screw rod 2212, and the two groups of moving blocks are respectively fixedly connected to the two groups of sealed blocks 2213, and a transmission component for driving the bidirectional screw rod 2212 to rotate is provided on the top of the partition plate 22;

[0066] The transmission assembly includes a support seat 2202, a gear rod 2204 is rotatably connected between the support seats 2202, a first transmission rod 2210 is rotatably connected to one side of the support seat 2202, the first transmission rod 2210 is fixedly connected to the gear rod 2204, a transmission belt 2211 for transmission is provided between the first transmission rod 2210 and the bidirectional screw rod 2212, and hollow rods 2203 are fixedly connected to the two side surfaces inside the support seat 2202, and two groups of hollow rods 2203 are slidably sleeved on both ends of the outer surface of the gear rod 2204, and a partition plate A sliding block 2205 is slidably connected on the partition plate 22, a side support 2206 is fixedly connected on the partition plate 22, a return spring 2207 is arranged between the side support 2206 and the sliding block 2205, one end of the return spring 2207 is fixedly connected to the side support 2206, and the other end is fixedly connected to the sliding block 2205, a belt 2208 is connected to the other side of the sliding block 2205, the other end of the belt 2208 is connected to the storage box 13 after winding around the hollow rod 2203, and a rack 2209 meshing with the rack rod 2204 is arranged on the belt 2208;

[0067] In this embodiment, when the dry powder in a group of dialysis dry powder bags is used up, if it is necessary to continue to prepare the dialysis fluid, first turn off the servo motor in the driving block 16 for controlling the rotation of the rotating rod 17 and drive the blade to reset to the blade groove, and then the medical staff pulls out the storage box 13. Through the provided belt 2208, the storage box 13 will be pulled out and the belt 2208 will drive the reset spring 2207 to stretch and change. After the belt 2208 is pulled out, the belt 2208 will drive the gear rod 2204 to rotate through the provided tooth block, and the gear rod 2204 will drive the bidirectional screw rod 2212 to rotate through the first transmission rod 2210 and the transmission belt 2211, thereby driving the two groups of sealing blocks 2213 to approach each other to seal the through hole 2201, so as to prevent the outside air from contaminating the dry powder stored in the discharge table 15;

[0068] When the medical staff places the next set of dialysis dry powder bags into the placement box, the reset spring 2207 uses its own elasticity to pull the sliding block 2205 to reset, and the sliding block 2205 drives the placement box to reset through the belt 2208. During the reset process of the belt 2208, the belt 2208 drives the gear rod 2204 to rotate in the opposite direction through the gear block, thereby driving the two sets of sealed blocks 2213 to move in the opposite direction and reset.

[0069] Preferably, a first stirring rod 8 is provided in the liquid storage tank 4, a second motor for driving the first stirring rod 8 to rotate is fixedly connected to one side of the liquid storage tank 4, and a heating module is also provided in the liquid storage tank 4, and the heating module is used to heat the dialysate stored in the liquid storage tank 4;

[0070] The heating module can heat the dialysate, and the second motor drives the first stirring rod 8 to rotate to continuously stir the dialysate in the liquid storage tank 4 to keep the dialysate flowing, so that the dialysate in the liquid storage tank 4 is heated evenly.

[0071] Preferably, the bottom of the inner cavity of the storage box 13 is sloping toward the center on both sides.

[0072] The dialysate supply device for hemodialysis provided by the present invention has a storage box 13, a sliding plate 20, a blade and a driving assembly. The medical staff puts the bag storing the dialysis dry powder into the storage box 13, and then pushes the storage box 13 into the preparation chamber. The driving assembly drives the blade to move and cut the dialysis dry powder bag in a sealed environment, thereby reducing the contamination and moisture caused by the contact between the dialysis dry powder and the outside air. In addition, the reciprocating sliding of the blade in the through hole 1301 can not only cut the dry powder bag, but also preliminarily crush the agglomerated dry powder. In combination with the provided grinding assembly, the dry powder can be further ground to avoid the agglomerated dry powder being difficult to completely dissolve or evenly disperse in the liquid medicine, resulting in an uneven proportion of the components of the mixture.

[0073] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0074] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dialysate supply device for hemodialysis, comprising a supply device (1), wherein the supply device (1) comprises a liquid storage tank (4) for storing mixed dialysate, a dialysate device (5) is arranged on one side of the liquid storage tank (4), and the mixed dialysate in the liquid storage tank (4) is supplied to the dialysate device (5), characterized in that: Also includes: A dialysate preparation box is arranged on top of the liquid storage box (4), comprising a water tank (2) and a mixing box (3) which are overlapped with each other, and a liquid inlet (7) is arranged on one side of the water tank (2); A first partition disposed horizontally is provided in the mixing box (3), the first partition dividing the mixing box (3) into a preparation chamber and a mixing chamber, and a second partition disposed vertically is provided in the preparation chamber, the second partition dividing the preparation chamber into a powder processing chamber and a liquid processing chamber; A pump body (12) is arranged in the liquid processing chamber, and the pump body (12) is fixedly connected to the top of the first partition. The water inlet end of the pump body (12) is connected to a liquid infusion pipe (6), and the other end of the liquid infusion pipe (6) is arranged in the water tank (2) after passing through the mixing box (3) and the water tank (2). A discharge pipe (10) is arranged at the water outlet end of the pump body (12), and the discharge pipe (10) passes through the first partition downward. A first solenoid valve is arranged in the discharge pipe (10) to control the liquid in the discharge pipe (10) to accurately discharge the liquid into the mixing box. A partition plate (22) is arranged in the powder processing chamber, a through hole (2201) is provided on the partition plate (22), a sliding plate (20) is slidably connected to the bottom of the partition plate (22), the sliding plate (20) can slide horizontally at the bottom of the partition plate (22), a sliding groove is provided at the bottom of the sliding plate (20), at least one group of blades is arranged on the top of the sliding plate (20), and the blades pass through the partition plate (22) upward through the through hole (2201); A storage box (13) for placing a dialysis dry powder bag is provided in the preparation chamber, two sides of the storage box (13) are slidably connected to the side walls in the preparation chamber, the storage box (13) is located on the upper side of the partition plate (22), and a continuous through hole (1301) corresponding to the blade is opened at the bottom and rear side of the storage box (13); A grinding assembly is arranged in the preparation chamber and located at the lower side of the partition plate (22), and is used for grinding fine agglomerated dry powder; A feeding assembly is arranged in the preparation chamber and located at the lower side of the grinding assembly, and is used to control the accurate feeding of the dry powder ground by the grinding assembly into the mixing box (3); A driving assembly for driving the sliding plate (20) to move back and forth is arranged in the preparation chamber, the driving assembly drives the sliding plate (20) to slide horizontally at the bottom of the partition plate (22), the sliding plate (20) drives the blade to slide in the through hole (1301) to cut the dialysis dry powder bag placed in the storage box (13), and the dialysis dry powder is discharged into the mixing box (3) in sequence through the through hole (1301), the through hole (2201), the grinding assembly and the feeding assembly; A liquid outlet pipe (11) for supplying liquid to the liquid storage tank (4) is arranged at the bottom of the mixing box (3), a second solenoid valve is arranged on the liquid outlet pipe (11), a second stirring rod (9) is arranged in the mixing box (3), and a first motor for driving the second stirring rod (9) to rotate is arranged on one side of the mixing box (3).

2. The dialysate supply device for hemodialysis according to claim 1, characterized in that: The grinding assembly comprises a grinding table (14) which is arranged in the preparation chamber and located at the lower side of the partition plate (22). The grinding table (14) is funnel-shaped, and a grinding hole penetrating downward is provided at the center of the top of the grinding table (14).

3. The dialysate supply device for hemodialysis according to claim 2, characterized in that: The unloading assembly comprises a discharge platform (15), which is arranged in the preparation chamber and located at the lower side of the grinding platform (14); the discharge platform (15) is funnel-shaped, and a discharge hole penetrating downward is opened at the top center of the discharge platform (15); the discharge hole is connected to the mixing box (3).

4. The dialysate supply device for hemodialysis according to claim 3, characterized in that: The driving assembly comprises a driving block (16), wherein two groups of symmetrically arranged servo motors are arranged in the driving block (16), a rotating rod (17) is arranged at the top of the driving block (16), the bottom of the rotating rod (17) is connected to the output end of one group of servo motors, the rotating rod (17) passes through the grinding hole to upwardly penetrate the grinding table (14), a grinding block (18) is fixedly sleeved on the rotating rod (17), the grinding block (18) is located in the grinding hole, and a grinding channel for grinding agglomerated powder is formed between the grinding block (18) and the grinding hole, a cross bar (19) is fixedly connected to the top of the rotating rod (17), a slider is arranged at the top of the other end of the cross bar (19), and the slider is slidably matched with the sliding groove, a auger rod (21) is arranged at the bottom of the driving block (16), the top of the auger rod (21) is connected to the output end of another group of servo motors, and the auger rod (21) passes through the discharge hole to form a discharge hole.

5. The dialysate supply device for hemodialysis according to claim 1, characterized in that: The partition plate (22) is a hollow plate. Two groups of sealed blocks (2213) are slidably connected inside the partition plate (22). The two groups of sealed blocks (2213) are symmetrically arranged on both sides of the through hole (2201). A bidirectional screw rod (2212) is rotatably connected inside the partition plate (22). Moving blocks are respectively screwed on the external threads on both sides of the bidirectional screw rod (2212). The two groups of moving blocks are respectively fixedly connected to the two groups of sealed blocks (2213). A transmission component for driving the bidirectional screw rod (2212) to rotate is arranged on the top of the partition plate (22).

6. The dialysate supply device for hemodialysis according to claim 5, characterized in that: The transmission assembly comprises a support seat (2202), a toothed rod (2204) is rotatably connected between the support seats (2202), a first transmission rod (2210) is rotatably connected to one side of the support seat (2202), the first transmission rod (2210) is fixedly connected to the toothed rod (2204), a transmission belt (2211) for transmission is provided between the first transmission rod (2210) and the bidirectional screw rod (2212), hollow rods (2203) are fixedly connected to the two side surfaces inside the support seat (2202), two groups of hollow rods (2203) are slidably sleeved on the two ends of the outer surface of the toothed rod (2204), and the partition plate (2 2) A sliding block (2205) is provided on the upper sliding connection, a side support (2206) is fixedly provided on the partition plate (22), a return spring (2207) is provided between the side support (2206) and the sliding block (2205), one end of the return spring (2207) is fixedly connected to the side support (2206), and the other end is fixedly connected to the sliding block (2205), the other side of the sliding block (2205) is connected to a belt (2208), the other end of the belt (2208) is connected to the storage box (13) after winding through the hollow rod (2203), and the belt (2208) is provided with a rack (2209) meshing with the gear rod (2204).

7. The dialysate supply device for hemodialysis according to claim 1, characterized in that: A first stirring rod (8) is arranged in the liquid storage tank (4), and a second motor for driving the first stirring rod (8) to rotate is fixedly connected to one side of the liquid storage tank (4). A heating module is also arranged in the liquid storage tank (4), and the heating module is used to heat the dialysate stored in the liquid storage tank (4).

8. The dialysate supply device for hemodialysis according to claim 1, characterized in that: The bottom of the inner cavity of the storage box (13) is in a shape where both sides slope down towards the center.

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