Liquid supply device and liquid supply system

Abstract

The embodiment of the utility model provides a liquid supply device and a liquid supply system. The liquid supply device comprises a first liquid storage container, at least one second liquid storage container, a conveying pipeline, a pressurization mechanism, a switch mechanism and a pressure control mechanism. The first liquid storage container is provided with a first inlet and a first outlet. The second liquid storage container is provided with a second inlet and a second outlet, the first liquid storage container and the second liquid storage container are located on different floors, and the second outlet is used for being connected with the filtering mechanism through a pipeline. The conveying pipeline is communicated with the first outlet of the first liquid storage container and the second inlet of the second liquid storage container. The pressurizing mechanism is arranged in the conveying pipeline. The switching mechanism is arranged in the conveying pipeline. The pressure control mechanism is arranged in the second liquid storage container. The liquid supply device can solve the problem that fluid in a concentrated liquid supply conveying pipeline exceeds allowable liquid supply pressure due to cross-floor conveying, so that a liquid supply system can be helped to safely and stably supply liquid to hemodialysis machines on different floors.

Description

Technical Field

[0001] The present application relates to the field of liquid supply technology, and in particular to a liquid supply device and a liquid supply system. Background Art

[0002] Hemodialysis usually refers to the use of the principle that artificial semipermeable membranes can pass through urea toxins, and the effects of solute diffusion, osmotic pressure difference and transmembrane pressure to expel excessive urea toxins in the blood and excess water retained in the body of uremic patients, so as to purify the patient's blood. Each treatment cycle uses about 5L of concentrated solution A, solution B and purified water containing various electrolytes needed by the human body to supply the hemodialysis machine to automatically configure it into standard dialysis fluid for dialysis.

[0003] At present, various hospitals mainly use the centralized hemodialysis fluid supply system, which includes a centralized concentrated fluid supply system (CCDS) and a centralized dialysis fluid delivery system (CDDS). Compared with the traditional barreled finished fluid supply mode, the centralized fluid supply makes it more convenient for nurses to operate, the conductivity parameters of the hemodialysis machine are more stable, the treatment of patients is safer, the treatment effect is good, and the fluid supply cost is low, so it is widely used.

[0004] However, the AB fluid input method of the hemodialysis machines used on the market is to absorb A and B fluids by negative pressure, and the positive pressure supply is not allowed to exceed the allowed positive pressure of the hemodialysis machine. Therefore, the current centralized dialysis fluid supply can only be supplied to each hemodialysis machine in a large flat. If the fluid is supplied across multiple floors, the fluid supply pressure will be over-pressured, and it may even cause inaccurate dialysis fluid conductivity, making it impossible to use normally.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The present application provides a liquid supply device and a liquid supply system, which can reduce the probability of the fluid in the centralized liquid supply pipeline exceeding the allowable liquid supply pressure of the hemodialysis machine due to cross-floor transportation, thereby helping the liquid supply system to safely and stably supply hemodialysis machines on different floors, allowing the hemodialysis machines to be used normally.

[0007] The first aspect of the embodiment of the present application provides a liquid supply device, which is used to centrally transport liquid to different floors. The liquid supply device includes a first liquid storage container, at least one second liquid storage container, a delivery pipeline, a pressurizing mechanism, a switch mechanism and a pressure control mechanism. The first liquid storage container is used to store the liquid to be transported, and the first liquid storage container has a first inlet and a first outlet, wherein the first inlet is used to add the liquid to be transported and the circulating reflux liquid into the first liquid storage container. At least one second liquid storage container is used to receive the liquid flowing out of the first liquid storage container, and the second liquid storage container has a second inlet and a second outlet, wherein the first liquid storage container and the second liquid storage container are located on different floors, and the second outlet is used to connect multiple filtering mechanisms located on the same floor with the second liquid storage container through a pipeline. The delivery pipeline is connected to the first outlet of the first liquid storage container and the second inlet of the second liquid storage container. The pressurizing mechanism is arranged in the delivery pipeline, and is used to transport the liquid to be transported stored in the first liquid storage container to the second liquid storage container through the delivery pipeline. The switch mechanism is arranged in the delivery pipeline. The pressure control mechanism is arranged in the second liquid storage container, and is used to control the pressure in the second liquid storage container within a preset pressure range.

[0008] The liquid supply device provided in the embodiment of the present application is configured such that the second liquid storage container and the multiple filtering mechanisms connected thereto are arranged on the same floor. When the first liquid storage container delivers the stored liquid to be delivered to the second liquid storage container through the boosting mechanism, the delivery pipeline and the switch mechanism, the pressure control mechanism is turned on to make the pressure in the second liquid storage container within a preset pressure range, thereby reducing the pressure difference between the liquid to be delivered on different floors, so that the pressure of the liquid flowing out of the second liquid storage container and entering the filtering mechanism on the same floor is within the required range. This can reduce the probability of the fluid in the centralized liquid supply delivery pipeline exceeding the allowable liquid supply pressure of the hemodialysis machine due to cross-floor delivery, thereby helping the liquid supply system to safely and stably supply the hemodialysis machines on different floors, allowing the hemodialysis machines to be used normally.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the switch mechanism includes a solenoid valve or an electric valve.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the switch mechanism includes a first solenoid valve or an electric first valve.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the pressure control mechanism further includes a second solenoid valve or a second electric valve.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the pressure control mechanism further includes an air filter, wherein the solenoid valve 18 is connected between the second liquid storage container and the air filter.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the boosting mechanism includes a delivery pump.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the liquid supply device further includes a rotating nozzle, which is disposed in the second liquid storage container and is connected to the output end of the delivery pipeline.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the liquid supply device further includes a circulation pipeline, which is used to connect the filtering mechanism and the first liquid storage container.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the liquid supply device further includes a check valve, which is disposed in the circulation pipeline.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the liquid supply device includes a plurality of second liquid storage containers, each of which is used to be arranged on a different floor, so as to be connected to a plurality of filtering mechanisms located on the same floor as the second liquid storage container through a pipeline; wherein each second liquid storage container is connected to a delivery pipeline in a one-to-one correspondence, and the height of the first liquid storage container relative to the horizontal plane is greater than the height of each second liquid storage container relative to the horizontal plane.

[0018] A second aspect of the embodiments of the present application provides a liquid supply system, comprising a liquid supply device as described in any one of the first aspect of the embodiments of the present application.

[0019] Instruction Manual

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a liquid supply device provided in some embodiments of the present application is shown;

[0022] Figure 2 Shows Figure 1 A schematic structural diagram of a second liquid storage container;

[0023] Figure 3 A schematic structural diagram of the second liquid storage container in some other embodiments of the present application is shown.

[0024] Specific digital identification instructions:

[0025] 100-a first liquid storage container;

[0026] 200 - second liquid storage container, 210 - first liquid level mark, 220 - second liquid level mark;

[0027] 300-transport pipeline, 310-first transport pipeline, 320-second transport pipeline;

[0028] 400-boosting mechanism;

[0029] 500 - switch mechanism, 510 - first electric valve, 520 - third solenoid valve;

[0030] 600-pressure control mechanism, 610-second solenoid valve, 620-air filter;

[0031] 700-rotating nozzle;

[0032] 800-circulation pipeline;

[0033] 900-check valve;

[0034] 20-Hemodialysis machine. DETAILED DESCRIPTION

[0035] The "range" disclosed in this application is defined in the form of a lower limit and an upper limit, and a given range is defined by selecting a lower limit and an upper limit, and the selected lower limit and upper limit define the boundaries of the particular range. The range defined in this way can be inclusive or exclusive of the end values, and can be arbitrarily combined, that is, any lower limit can be combined with any upper limit to form a range.

[0036] If not otherwise specified, all embodiments and optional embodiments of the present application may be combined with each other to form new technical solutions, and such technical solutions should be deemed to be included in the disclosure of the present application.

[0037] Unless otherwise specified, all technical features and optional technical features of the present application may be combined with each other to form new technical solutions, and such technical solutions should be deemed to be included in the disclosure of the present application.

[0038] If there is no special explanation, all steps of the present application can be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), which means that the method may include steps (a) and (b) performed sequentially, or may include steps (b) and (a) performed sequentially. For example, the method may further include step (c), which means that step (c) may be added to the method in any order. For example, the method may include steps (a), (b) and (c), or may include steps (a), (c) and (b), or may include steps (c), (a) and (b), etc.

[0039] If there is no special explanation, the "include" and "comprising" mentioned in this application are open-ended or closed-ended. For example, the "include" and "comprising" may mean that other components not listed may also be included or only the listed components may be included or only the listed components may be included.

[0040] If not specifically stated, in this application, the term "or" is inclusive. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, any of the following conditions satisfies the condition "A or B": A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0041] Unless otherwise specified, the terms used in this application have the commonly understood meanings that are generally understood by those skilled in the art.

[0042] Unless otherwise specified, the values ​​of the parameters mentioned in the present application can be measured by various test methods commonly used in the art, for example, they can be measured according to the test methods given in the embodiments of the present application.

[0043] During hemodialysis, the fluid supply system can prepare dialysate and bring the dialysate into contact with the patient's blood for substance exchange, thereby removing metabolic waste from the patient's body, maintaining electrolyte and acid-base balance, while also removing excess water from the body and returning the purified blood.

[0044] In the related art, the fluid supply system can only centrally supply dialysis fluid to each hemodialysis machine in a large flat. If the fluid is supplied across multiple floors, the fluid supply pressure will be over-pressured, and even the dialysis fluid conductivity may be inaccurate, making it impossible to use it normally.

[0045] In view of this, an embodiment of the present application provides a liquid supply device and a liquid supply system, which can reduce the probability of the fluid in the centralized liquid supply pipeline exceeding the allowable liquid supply pressure of the hemodialysis machine due to cross-floor transportation, thereby helping the liquid supply system to safely and stably supply hemodialysis machines on different floors, allowing the hemodialysis machines to be used normally.

[0046] See also Figure 1In a first aspect, the embodiment of the present application provides a liquid supply device, which is used to centrally deliver liquid to different floors. The liquid supply device includes a first liquid storage container 100, at least one second liquid storage container 200, a delivery pipeline 300, a pressurization mechanism 400, a switch mechanism 500, and a pressure control mechanism 600. The first liquid storage container 100 is used to store the liquid to be delivered. The first liquid storage container 100 has a first inlet and a first outlet, wherein the first inlet is used to add the liquid to be delivered and the circulating reflux liquid into the first liquid storage container 100. At least one second liquid storage container 200 is used to receive the liquid flowing out of the first liquid storage container 100. The second liquid storage container 200 has a second inlet and a second outlet, wherein the first liquid storage container 100 and the second liquid storage container 200 are located on different floors, and the second outlet is used to connect multiple filtering mechanisms located on the same floor as the second liquid storage container 200 through a pipeline. The delivery pipeline 300 is connected to the first outlet of the first liquid storage container 100 and the second inlet of the second liquid storage container 200. The pressurizing mechanism 400 is disposed in the delivery pipeline 300, and is used to deliver the liquid to be delivered stored in the first liquid storage container 100 to the second liquid storage container 200 through the delivery pipeline 300. The switch mechanism 500 is disposed in the delivery pipeline 300. The pressure control mechanism 600 is disposed in the second liquid storage container 200, and is used to control the pressure in the second liquid storage container 200 to be within a preset pressure range.

[0047] The liquid supply device provided in the embodiment of the present application is configured such that the second liquid storage container 200 and the multiple filtering mechanisms connected thereto are arranged on the same floor. When the first liquid storage container 100 delivers the stored liquid to be delivered to the second liquid storage container 200 through the boosting mechanism 400, the delivery pipeline 300 and the switch mechanism 500, the pressure control mechanism 600 is opened to make the pressure in the second liquid storage container 200 within a preset pressure range, thereby reducing the pressure difference between the liquid to be delivered on different floors, so that the pressure of the liquid flowing out of the second liquid storage container 200 and entering the filtering mechanism on the same floor is within the required range. This can reduce the probability of the fluid in the centralized liquid supply delivery pipeline 300 exceeding the allowable liquid supply pressure of the hemodialysis machine 20 due to cross-floor delivery, thereby helping the liquid supply system to safely and stably supply the hemodialysis machines 20 on different floors, so that the hemodialysis machines 20 can be used normally.

[0048] In the above embodiment, the liquid supply device may also include at least two preparation containers, which are used to respectively prepare A and B dry powders into concentrated liquids A and B, and these concentrated liquids are then transported to the first liquid storage container 100 as the liquid to be transported in the first liquid storage container 100.

[0049] In addition, in order to quickly prepare the concentrated liquid, a stirring paddle can be arranged in the preparation container, and the stirring paddle can be driven by a motor to quickly prepare the concentrated liquid. In addition, a cleaning device can also be installed in the preparation container to quickly clean the preparation container so that it can be reused.

[0050] In order to reduce the amount of bacteria growing in the concentrated liquid, in some embodiments of the present application, a filter is provided at the first inlet of the first liquid storage container 100, and the bacteria in the first liquid storage container 100 are reduced by the air filter.

[0051] In the above embodiments, the filter may be an air filter and / or a precision filter, which can effectively reduce the amount of bacteria in the liquid supply device.

[0052] In the embodiments of the present application, the material of the preparation container and the liquid storage container can be any material known in the art for preparation containers and liquid storage containers, and the embodiments of the present application do not impose any special restrictions on this. For example, the preparation container and the liquid storage container can adopt a one-time injection-molded cone plastic tank or a sanitary corrosion-resistant polypropylene (PP) barrel.

[0053] See also Figure 2 As shown, in some embodiments of the present application, the switch mechanism 500 includes a first solenoid valve or a first electric valve 510 , and the first electric valve 510 can be used to conveniently control the flow of liquid entering the second liquid storage container 200 .

[0054] See also Figure 2 As shown, in some embodiments of the present application, the pressure control mechanism 600 also includes a second solenoid valve 610 or a second electric valve. The second solenoid valve 610 can easily make the pressure in the second liquid storage container 200 consistent with the pressure in the filtering mechanism on the same floor, thereby reducing the pressure difference between the liquid flowing out of the second liquid storage container 200 and the liquid flowing into the filtering mechanism on the same floor, thereby helping to reduce the probability of the fluid in the centralized liquid supply delivery pipeline 300 exceeding the allowable liquid supply pressure of the hemodialysis machine 20 due to cross-floor transportation, thereby helping the liquid supply system to safely and stably supply the hemodialysis machines 20 on different floors, so that the hemodialysis machines 20 can be used normally.

[0055] See also Figure 2 As shown, in some embodiments of the present application, the pressure control mechanism 600 further includes an air filter 620, wherein the second solenoid valve 610 is connected between the second liquid storage container 200 and the air filter 620. The air filter 620 can further reduce the amount of bacteria in the second liquid storage container 200.

[0056] In some embodiments of the present application, the pressurizing mechanism 400 includes a delivery pump.

[0057] See also Figure 2 As shown, in some embodiments of the present application, the liquid supply device further includes a rotating nozzle 700, which is disposed in the second liquid storage container 200 and is connected to the output end of the delivery pipeline 300. The rotating nozzle 700 can make the liquid flow into the second liquid storage container 200 evenly in a short time, thereby avoiding excessive local pressure that causes excessive pressure out of the second liquid storage container 200.

[0058] In some embodiments of the present application, the liquid supply device further includes a circulation pipeline 800 , and the circulation pipeline 800 is used to connect the filtering mechanism and the first liquid storage container 100 .

[0059] In some embodiments of the present application, the liquid supply device further includes a check valve 900 , and the check valve 900 is disposed in the circulation pipeline 800 .

[0060] In some embodiments of the present application, the liquid supply device includes a plurality of second liquid storage containers 200, each second liquid storage container 200 is used to be arranged on a different floor, so as to be connected to a plurality of filtering mechanisms located on the same floor as the second liquid storage container 200 through a pipeline; wherein each second liquid storage container 200 is connected to a delivery pipeline 300 one by one, and the height of the first liquid storage container 100 relative to the horizontal plane is greater than the height of each second liquid storage container 200 relative to the horizontal plane.

[0061] For example, see Figure 1 As shown, liquid needs to be supplied to the hemodialysis machines 20 on the third and fourth floors, so the first liquid storage container 100 is located on the fifth floor, and a second liquid storage container 200 is provided on the third and fourth floors respectively.

[0062] In some embodiments of the present application, the liquid supply device may further include a controller, which is electrically connected to the boosting mechanism 400, the switch mechanism 500 and the pressure control mechanism 600, respectively, so that the working status of each key component can be remotely monitored and operated.

[0063] In some embodiments of the present application, a first liquid level mark 210 and a second liquid level mark 220 are disposed inside the second liquid storage container 200 , and the height of the first liquid level mark 210 relative to the horizontal plane is higher than the height of the second liquid level mark 220 relative to the horizontal plane.

[0064] It can be understood that the first liquid level mark 210 and the second liquid level mark 220 are respectively provided with a first liquid level sensor and a second liquid level sensor.

[0065] See also Figure 3As shown, in some embodiments of the present application, the delivery pipeline 300 includes a first delivery pipeline 310 and a second delivery pipeline 320 connected in parallel, a first electric valve 510 is arranged on the first delivery pipeline 310 , and a third solenoid valve 520 is arranged on the second delivery pipeline 320 .

[0066] The following is a detailed description of the method for using the liquid supply device according to the embodiment of the present application.

[0067] The liquid storage container needs to be disinfected regularly, please refer to Figure 2 As shown, the first electric valve 510 is opened, the second electromagnetic valve 610 is closed, and the effective concentration disinfectant is delivered at high speed by the delivery pump to achieve immersion, circulation, and spraying without dead space flushing.

[0068] After disinfection, the first liquid preparation is performed. At this time, the second solenoid valve 610 is closed, the first electric valve 510 is opened, and the delivery pump runs at high speed to deliver the concentrated liquid to discharge the water and air in the delivery pipeline 300. The first electric valve 510 is closed to test and verify the conductivity of the hemodialysis machine. After the conductivity of the terminal hemodialysis machine 20 is stable, the second solenoid valve 610 is opened to connect to the atmospheric pressure to achieve normal constant suction and liquid supply mode.

[0069] Reservoir Refill Supply Mode: See Figure 1-Figure 3 ,,The second liquid storage container 200 and the multiple hemodialysis machines 20 connected thereto are located on the same layer, wherein the multiple hemodialysis machines 20 are connected in series. Before the liquid level of the concentrated liquid reaches the first liquid level mark 210 in the second liquid storage container 20, the first electric valve 510, the first electromagnetic valve 610 and the third electromagnetic valve 520 are opened, and the concentrated liquid in the first liquid storage container 100 is delivered to the second liquid storage container 200 through the delivery pump. When the liquid level reaches the first liquid level mark 210 where the first liquid level sensor is located, a feedback signal is sent to close the first electric valve 510 and the third electromagnetic valve 520. The second electromagnetic valve 610 is opened, and the liquid in the second liquid storage container 200 is connected to the atmospheric pressure to realize the normal constant suction and liquid supply mode. When the liquid in the second liquid storage container 200 is consumed by the hemodialysis machine 20 and the liquid level reaches the second liquid level mark 220 of the second liquid level sensor, a feedback signal is sent to open the third electromagnetic valve 620 to replenish the liquid. When the liquid level reaches the first liquid level mark 210 of the first liquid level sensor, the third electromagnetic valve 520 is closed. This cycle continues, with liquid replenishment and liquid supply being performed simultaneously. The liquid replenishment flow rate of the third electromagnetic valve 520 must be greater than the liquid consumption flow rate of all hemodialysis machines 20 on the same floor. The operation of the above electronic components can all be operated by the controller.

[0070] A second aspect of the embodiments of the present application provides a liquid supply system, comprising a liquid supply device as described in any one of the first aspect of the embodiments of the present application.

[0071] Finally, it should be noted that the above experimental examples are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned experimental examples, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned experimental examples, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the experimental examples of the present application.

Claims

1. A liquid supply device, characterized in that: The liquid supply device is used to centrally transport liquid to different floors, and the liquid supply device includes: A first liquid storage container, used for storing the liquid to be transported, the first liquid storage container having a first inlet and a first outlet, wherein the first inlet is used for adding the liquid to be transported and the circulating reflux liquid into the first liquid storage container; At least one second liquid storage container, used to receive the liquid flowing out of the first liquid storage container, the second liquid storage container having a second inlet and a second outlet, wherein the first liquid storage container and the second liquid storage container are located on different floors, and the second outlet is used to connect to a plurality of filtering mechanisms located on the same floor as the second liquid storage container through pipelines; a delivery pipeline connected to a first outlet of the first liquid storage container and a second inlet of the second liquid storage container; A pressurizing mechanism, disposed in the delivery pipeline, for delivering the liquid to be delivered stored in the first liquid storage container to the second liquid storage container via the delivery pipeline; A switch mechanism is arranged in the conveying pipeline; The pressure control mechanism is arranged in the second liquid storage container and is used to control the pressure in the second liquid storage container to be within a preset liquid supply pressure range.

2. The liquid supply device according to claim 1, characterized in that: The switch mechanism includes a first solenoid valve or a first electric valve.

3. The liquid supply device according to claim 1, characterized in that: The pressure control mechanism further includes a second solenoid valve or a second electric valve.

4. The liquid supply device according to claim 3, characterized in that: The pressure control mechanism further includes an air filter, wherein the second solenoid valve is connected between the second liquid storage container and the air filter.

5. The liquid supply device according to claim 1, characterized in that: The pressurizing mechanism comprises a delivery pump.

6. The liquid supply device according to claim 1, characterized in that: The liquid supply device further comprises a rotating spray head, which is arranged in the second liquid storage container and communicated with the output end of the delivery pipeline.

7. The liquid supply device according to claim 1, characterized in that: The liquid supply device further comprises a circulation pipeline, and the circulation pipeline is used for connecting the filtering mechanism and the first liquid storage container.

8. The liquid supply device according to claim 7, characterized in that: The liquid supply device further comprises a check valve, and the check valve is arranged in the circulation pipeline.

9. The liquid supply device according to claim 1, characterized in that: The liquid supply device comprises a plurality of the second liquid storage containers, each of which is arranged on a different floor, so as to be connected to a plurality of filter mechanisms located on the same floor as the second liquid storage container through a pipeline; Wherein, each of the second liquid storage containers is connected to the delivery pipeline in a one-to-one correspondence, and the height of the first liquid storage container relative to the horizontal plane is greater than the height of each of the second liquid storage containers relative to the horizontal plane.

10. A liquid supply system, characterized in that: The invention comprises a liquid supply device as claimed in any one of claims 1 to 9.

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