Water supply microcirculation device for hemodialysis instrument

Abstract

The utility model relates to the technical field of medical instruments, and discloses a water supply microcirculation device for a hemodialysis instrument. A main pipeline of the device is formed by connecting a first pipeline, a second pipeline and a third pipeline which are different in nominal diameter, and the main pipeline is connected with a hemodialysis instrument through a fourth pipeline, a fifth pipeline and a three-way connector. In the process that water production equipment conveys dialysis water to the hemodialysis instrument through the water supply microcirculation device, due to the fact that the dialysis water in the second pipeline with the large nominal diameter is low in flow speed and high in pressure, and the dialysis water in the third pipeline with the small nominal diameter is high in flow speed and low in pressure, the dialysis water in the second pipeline can be conveyed to the hemodialysis instrument through the water supply microcirculation device. The water flows through the fourth pipeline, the inlet of the three-way connector, the first outlet of the three-way connector and the fifth pipeline in sequence and then flows back to the third pipeline, the situation that a dead water section is formed between the main pipeline of the water production equipment and the hemodialysis instrument is reduced, and therefore the quality of dialysis water conveyed to the hemodialysis instrument by the water production equipment is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, for example, to a water supply microcirculation device for a hemodialysis machine. Background Art

[0002] During the operation of the hemodialysis machine, the concentrate and the dialysis water produced by the water production equipment need to be prepared into dialysis fluid for the patient to perform hemodialysis.

[0003] In order to provide the dialysis water produced by the water production equipment to the hemodialysis machine, in the related art, the water production equipment is connected to a main pipeline, in which the dialysis water flows, and the main pipeline is connected to multiple branch pipelines, each branch pipeline independently supplies water to a hemodialysis machine.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the related art, a single branch pipeline is used to supply water to the hemodialysis machine. If the hemodialysis machine stops running for a long time, a dead water section will be formed in the branch pipeline, and the dead water section in the branch pipeline is prone to breeding bacteria. Therefore, when the hemodialysis machine is restarted, the dialysis water provided by the water preparation equipment to the hemodialysis machine through the branch pipeline is prone to carry bacteria bred in the dead water section, thereby affecting the health of the patient.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a water supply microcirculation device for a hemodialysis machine, which can reduce the formation of dead water sections, thereby ensuring the water quality of the dialysis water delivered to the hemodialysis machine by the water production equipment.

[0009] The present disclosure provides a water supply microcirculation device for a hemodialysis machine, comprising:

[0010] A first pipeline, a first end of which is connected to a water supply pipeline of a water production device;

[0011] a second pipeline, wherein the nominal diameter of the second pipeline is greater than the nominal diameter of the first pipeline, and the first end of the second pipeline is connected to the second end of the first pipeline;

[0012] a third pipeline, the third pipeline having the same nominal diameter as the first pipeline, a first end of the third pipeline connected to the second end of the second pipeline, and a second end of the third pipeline connected to a return water pipeline of the water production equipment;

[0013] A three-way connector, the inlet of the three-way connector is connected to the second pipeline through the fourth pipeline, the first outlet of the three-way connector is connected to the third pipeline through the fifth pipeline, and the second outlet of the three-way connector is connected to the hemodialysis machine.

[0014] Optionally, the device further comprises: a first reducer, through which the first end of the second pipeline is connected to the second end of the first pipeline; and a second reducer, through which the first end of the third pipeline is connected to the second end of the second pipeline.

[0015] Optionally, the first reducer and the second reducer are concentric reducers.

[0016] Optionally, a first joint is provided at the first end of the first pipeline, and a second joint is provided at the second end of the third pipeline; wherein different water supply microcirculation devices are interconnected via the first joint and the second joint.

[0017] Optionally, the first connector and the second connector are quick-release connectors.

[0018] Optionally, the device further comprises: a third quick-release connector, arranged at the connection point between the fourth pipeline and the second pipeline; and a fourth quick-release connector, arranged at the connection point between the fifth pipeline and the third pipeline.

[0019] Optionally, the device further comprises: a fifth quick-release connector, which is arranged at the second outlet of the three-way connector and connected to the second outlet of the three-way connector; and a pagoda connector, which is respectively connected to the fifth quick-release connector and the hemodialysis machine.

[0020] Optionally, the first pipeline, the second pipeline and the third pipeline are made of S31603 stainless steel.

[0021] Optionally, the fourth pipeline and the fifth pipeline are made of plastic.

[0022] Optionally, the three-way connector is a U-shaped quick-insert connector.

[0023] The water supply microcirculation device for a hemodialysis machine provided in the embodiments of the present disclosure can achieve the following technical effects:

[0024] In the disclosed embodiment, the main pipeline of the water supply microcirculation device is formed by connecting the first pipeline, the second pipeline and the third pipeline with different nominal diameters, and the main pipeline and the hemodialyzer are connected by the fourth pipeline, the fifth pipeline and the three-way joint. Specifically, the inlet of the three-way joint is connected to the second pipeline through the fourth pipeline, the first outlet of the three-way joint is connected to the third pipeline through the fifth pipeline, and the second outlet of the three-way joint is connected to the hemodialyzer. In the process of the water production equipment delivering dialysis water to the hemodialyzer through the water supply microcirculation device, since the nominal diameter of the second pipeline is greater than the nominal diameter of the third pipeline, the dialysis water in the second pipeline with a larger nominal diameter has a slow flow rate and high pressure, and the dialysis water in the third pipeline with a smaller nominal diameter has a fast flow rate and low pressure, then the dialysis water in the second pipeline will flow to the inlet of the three-way joint through the fourth pipeline, and then a part of the dialysis water will flow back to the third pipeline through the first outlet of the three-way joint, and the other part of the dialysis water will flow to the hemodialyzer through the second outlet of the three-way joint. In this way, even if the hemodialysis machine stops running for a long time, the dialysis water in the second pipeline will flow through the fourth pipeline, the three-way joint inlet, the first outlet of the three-way joint and the fifth pipeline in sequence and flow back to the third pipeline, reducing the dead water section formed between the main pipeline of the water production equipment and the hemodialysis machine, thereby ensuring the water quality of the dialysis water delivered to the hemodialysis machine by the water production equipment, and further reducing the impact on the patient's health during the patient's hemodialysis through the hemodialysis machine.

[0025] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0027] Figure 1 is a schematic diagram of a water supply microcirculation device for a hemodialysis machine;

[0028] Figure 2 is a schematic diagram of a water supply microcirculation device for a hemodialysis machine provided by an embodiment of the present disclosure;

[0029] Figure 3 It is a connection diagram of a water supply microcirculation device for a hemodialysis machine provided in an embodiment of the present disclosure.

[0030] Reference numerals:

[0031] 11: Main pipeline; 12: Branch pipeline;

[0032] 21: first pipeline; 22: second pipeline; 23: third pipeline; 24: three-way connector; 25: fourth pipeline; 26: fifth pipeline; 27: first reducer; 28: second reducer;

[0033] 210: first connector; 230: second connector; 29: third quick connector; 30: fourth quick connector; 31: fifth quick connector; 32: pagoda connector;

[0034] 211: the first end of the first pipeline; 212: the second end of the first pipeline; 221: the first end of the second pipeline; 222: the second end of the second pipeline; 231: the first end of the third pipeline; 232: the second end of the third pipeline;

[0035] 241: inlet of the tee connector; 242: first outlet of the tee connector; 243: second outlet of the tee connector. DETAILED DESCRIPTION

[0036] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0037] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0040] Unless otherwise specified, the term "plurality" means two or more and the term "multiple" means two or more.

[0041] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0042] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0044] During the operation of the hemodialysis machine, the concentrate and the dialysis water produced by the water production equipment need to be prepared into dialysis fluid for the patient to perform hemodialysis.

[0045] In order to provide the dialysis water produced by the water production equipment to the hemodialysis machine. Figure 1 As shown, in the related art, the water production equipment is connected to a main pipeline 11, and dialysis water flows in the main pipeline 11. The direction of the arrow in the figure is the flow direction of the dialysis water. The main pipeline 11 is connected to multiple branch pipelines 12, and each branch pipeline 12 supplies water to a separate hemodialysis machine.

[0046] However, in the related art, a single branch pipe 12 is used to supply water to the hemodialysis machine. If the hemodialysis machine stops operating for a long time, a dead water section will be formed in the branch pipe 12, and bacteria are easily bred in the dead water section in the branch pipe 12. Therefore, when the hemodialysis machine is restarted, the dialysis water provided by the water preparation equipment to the hemodialysis machine through the branch pipe 12 is likely to carry bacteria bred in the dead water section, thereby affecting the health of the patient.

[0047] In view of this, an embodiment of the present disclosure provides a water supply microcirculation device for a hemodialysis machine. The device utilizes the Bernoulli principle to reduce the dead water section formed between the main pipeline of the water production equipment and the hemodialysis machine, thereby ensuring the water quality of the dialysis water delivered to the hemodialysis machine by the water production equipment, thereby reducing the impact on the patient's health during the process of hemodialysis through the hemodialysis machine.

[0048] Combination Figure 2 As shown, a water supply microcirculation device for a hemodialysis machine provided in an embodiment of the present disclosure includes a first pipeline 21, a second pipeline 22, a third pipeline 23 and a three-way connector 24, wherein:

[0049] The first end 211 of the first pipeline 21 is connected to the water supply pipeline of the water production equipment, so that the dialysis water produced by the water production equipment flows into the first pipeline 21 from the first end 211 .

[0050] The nominal diameter of the second pipeline 22 is greater than that of the first pipeline 21 . Preferably, the nominal diameter of the first pipeline 21 is 25 mm, and the nominal diameter of the second pipeline 22 is 50 mm. The first end 221 of the second pipeline 22 is connected to the second end 212 of the first pipeline 21 .

[0051] The third pipeline 23 has the same nominal diameter as the first pipeline 21. The first end 231 of the third pipeline 23 is connected to the second end 222 of the second pipeline 22, and the second end 232 of the third pipeline 23 is connected to the return pipeline of the water production equipment, so that the circulated dialysis water flows back to the water production equipment, reducing the waste of water resources.

[0052] The inlet 241 of the three-way connector 24 is connected to the second pipeline 22 through the fourth pipeline 25, the first outlet 242 of the three-way connector 24 is connected to the third pipeline 23 through the fifth pipeline 26, and the second outlet 243 of the three-way connector 24 is connected to the hemodialyzer.

[0053] In the disclosed embodiment, the main pipeline of the water supply microcirculation device is formed by connecting the first pipeline 21, the second pipeline 22 and the third pipeline 23 with different nominal diameters, and the main pipeline and the hemodialyzer are connected through the fourth pipeline 25, the fifth pipeline 26 and the three-way joint 24. Specifically, the inlet 241 of the three-way joint 24 is connected to the second pipeline 22 through the fourth pipeline 25, the first outlet 242 of the three-way joint 24 is connected to the third pipeline 23 through the fifth pipeline 26, and the second outlet 243 of the three-way joint 24 is connected to the hemodialyzer. In the process of the water production equipment delivering dialysis water to the hemodialysis machine through the water supply microcirculation device, since the nominal diameter of the second pipeline 22 is larger than the nominal diameter of the third pipeline 23, the dialysis water in the second pipeline 22 with a larger nominal diameter has a slow flow rate and a high pressure, and the dialysis water in the third pipeline 23 with a smaller nominal diameter has a fast flow rate and a low pressure, then the dialysis water in the second pipeline 22 will flow to the inlet 241 of the three-way joint 24 through the fourth pipeline 25, and then a part of the dialysis water will flow back to the third pipeline 23 through the first outlet 242 of the three-way joint 24, and the other part of the dialysis water will flow to the hemodialysis machine through the second outlet 243 of the three-way joint 24. In this way, even if the hemodialysis machine stops running for a long time, the dialysis water in the second pipeline 22 will flow through the fourth pipeline 25, the inlet 241 of the three-way joint 24, the first outlet 242 of the three-way joint 24 and the fifth pipeline 26 in sequence and flow back to the third pipeline 23, reducing the dead water section formed between the main pipeline of the water production equipment and the hemodialysis machine, thereby ensuring the water quality of the dialysis water delivered to the hemodialysis machine by the water production equipment, and further reducing the impact on the patient's health during the patient's hemodialysis through the hemodialysis machine.

[0054] It should be noted that in the related art, after bacteria grow in the dead water section formed between the main pipe of the water production equipment and the hemodialysis machine, the grown bacteria are difficult to be completely removed during chemical disinfection or thermal disinfection, resulting in incomplete disinfection. Moreover, the dead water section is prone to retain chemical drugs used in the patient's hemodialysis process, further increasing the possibility of bacterial growth. In view of this, in the embodiments of the present disclosure, by reducing the dead water section formed between the main pipe of the water production equipment and the hemodialysis machine, the possibility of bacterial growth in the water supply device is reduced, thereby reducing the difficulty of disinfecting the water supply device, thereby saving the maintenance cost of the water supply device.

[0055] Optionally, the water supply microcirculation device provided in the embodiment of the present disclosure further includes a first reducer 27 and a second reducer 28. Wherein, the first end 221 of the second pipeline 22 is connected to the second end 212 of the first pipeline 21 through the first reducer 27, and the first end 231 of the third pipeline 23 is connected to the second end 222 of the second pipeline 22 through the second reducer 28. Preferably, the first reducer 27 and the second reducer 28 are concentric reducers. In this way, the dialysis water in the first pipeline 21 can flow more smoothly to the second pipeline 22 and the third pipeline 23, further improving the circulation efficiency of the dialysis water.

[0056] Optionally, in the embodiment of the present disclosure, the first end 211 of the first pipeline 21 is provided with a first connector 210, and the second end 232 of the third pipeline 23 is provided with a second connector 230. Figure 3 As shown, different water supply microcirculation devices are connected to each other through the first connector 210 and the second connector 230. In this way, dialysis water can be provided to multiple blood analyzers at the same time, improving the water supply efficiency. Preferably, the first connector 210 and the second connector 230 are quick-release connectors. When different water supply microcirculation devices are connected, the quick-release connectors are used for easier connection, which simplifies the deployment complexity of multiple water supply microcirculation devices and improves the deployment efficiency of the water supply microcirculation devices.

[0057] Optionally, the water supply microcirculation device provided in the embodiment of the present disclosure further includes a third quick-release connector 29 and a fourth quick-release connector 30. The third quick-release connector 29 is provided at the connection between the fourth pipeline 25 and the second pipeline 22, and the fourth quick-release connector 30 is provided at the connection between the fifth pipeline 26 and the third pipeline 23. In this way, through the third quick-release connector 29 and the fourth quick-release connector 30, the fourth pipeline 25 and the fifth pipeline 26 are conveniently connected to the main pipeline, or conveniently disassembled from the main pipeline, which is convenient for replacing the fourth pipeline 25 and the fifth pipeline 26.

[0058] Optionally, the water supply microcirculation device provided in the embodiment of the present disclosure further includes a fifth quick-release connector 31 and a pagoda connector 32. The fifth quick-release connector 31 is disposed at the second outlet 243 of the three-way connector 24 and is connected to the second outlet 243 of the three-way connector 24. The pagoda connector 32 is connected to the fifth quick-release connector 31 and the hemodialysis machine, respectively. In this way, the fifth quick-release connector 31 and the pagoda connector 32 facilitate the connection or disassembly between the water supply microcirculation device and the hemodialysis machine, so as not to affect the hemodialysis machine during the disinfection process of the pipeline of the water supply microcirculation device.

[0059] Optionally, in the disclosed embodiment, the fourth pipeline 25 and the fifth pipeline 26 are made of plastic, preferably, high temperature resistant plastic. Thus, on the one hand, the plastic pipeline can be slightly bent, saving the installation space of the water supply microcirculation device. On the other hand, the plastic pipeline is more suitable for mobile hemodialysis machines. During the movement, the plastic pipeline is easy to bend and not easily damaged, thereby improving the scope of application of the water supply microcirculation device.

[0060] Optionally, in the water supply microcirculation device of the disclosed embodiment, except for the fourth pipeline 25 and the fifth pipeline 26, the material of the remaining pipes is S31603. In this way, the corrosion resistance of the entire water supply microcirculation device can be improved. For example, the first pipeline 21, the second hanging pipeline 22 and the third pipeline 23 are made of S31603 stainless steel, and the material of the three-way connector 24, the pagoda connector 32 and each quick-release connector is also S31603. Preferably, in the disclosed embodiment, the three-way connector 24 is a U-shaped quick-release connector.

[0061] Optionally, in the embodiment of the present disclosure, the first joint 210 , the second joint 230 , the third quick-release joint 29 and the fourth quick-release joint 30 are all configured with quick-release clamps.

[0062] Optionally, in the water supply microcirculation device of the embodiment of the present disclosure, each pipe fitting is a sanitary-grade pipe fitting, so that the entire water supply microcirculation device can more effectively prevent bacteria from growing.

[0063] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A water supply microcirculation device for a hemodialysis machine, characterized in that: include: A first pipeline, a first end of which is connected to a water supply pipeline of a water production device; a second pipeline, wherein the nominal diameter of the second pipeline is greater than the nominal diameter of the first pipeline, and the first end of the second pipeline is connected to the second end of the first pipeline; a third pipeline, the third pipeline having the same nominal diameter as the first pipeline, a first end of the third pipeline connected to the second end of the second pipeline, and a second end of the third pipeline connected to a return water pipeline of the water production equipment; A three-way connector, the inlet of the three-way connector is connected to the second pipeline through the fourth pipeline, the first outlet of the three-way connector is connected to the third pipeline through the fifth pipeline, and the second outlet of the three-way connector is connected to the hemodialysis machine.

2. The device according to claim 1, characterized in that The device also includes: a first reducer, wherein the first end of the second pipeline is connected to the second end of the first pipeline via the first reducer; A second reducing pipe, wherein the first end of the third pipeline is connected to the second end of the second pipeline through the second reducing pipe.

3. The device according to claim 2, characterized in that The first reducer and the second reducer are concentric reducers.

4. The device according to claim 1, characterized in that The first end of the first pipeline is provided with a first joint, and the second end of the third pipeline is provided with a second joint; Among them, different water supply microcirculation devices are connected to each other through a first joint and a second joint.

5. The device according to claim 4, characterized in that The first connector and the second connector are quick-release connectors.

6. The device according to claim 1, characterized in that The device also includes: A third quick-release connector is provided at the connection point between the fourth pipeline and the second pipeline; The fourth quick-release connector is arranged at the connecting point between the fifth pipeline and the third pipeline.

7. The device according to claim 1, characterized in that The device also includes: A fifth quick-release connector is disposed at the second outlet of the three-way connector and is connected to the second outlet of the three-way connector; The pagoda connector is connected to the fifth quick-release connector and the hemodialysis machine respectively.

8. The device according to any one of claims 1 to 7, characterized in that The first pipeline, the second pipeline and the third pipeline are made of S31603 stainless steel.

9. The device according to any one of claims 1 to 7, characterized in that The fourth pipeline and the fifth pipeline are made of plastic.

10. The device according to any one of claims 1 to 7, characterized in that The three-way connector is a U-shaped quick-insert connector.

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