Spiral circulation type dialysis pipeline

Abstract

The utility model discloses a spiral circulation type dialysis pipeline which can guide blood to flow along a flow guide groove to form a similar swirling flow state, solves the problem of thrombus blockage caused by vortex and turbulent flow and improves the flow state of the blood in the pipeline and a venous kettle, so that the risk of blood coagulation is reduced, and bubbles in the blood are more effectively removed. According to the technical scheme, the device comprises a spiral vein pot, a dialysis machine connector, a spiral pipe, a blood transfusion needle and a liquid valve. The dialysis machine connector is connected with the upper end of the spiral vein pot through the spiral pipe; the lower end of the spiral vein pot is connected with the liquid valve through a spiral pipe, and the liquid valve is connected with the blood transfusion needle through a spiral pipe; a spiral wing is arranged in the spiral vein pot, the width of the spiral wing is larger than the radius of the spiral vein pot, and the spiral wing is fixedly arranged on the wall of the spiral vein pot. An arc-shaped groove is formed in the spiral pipeline and is spirally formed in the inner wall of the spiral pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a spiral circulation dialysis tubing. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Hemodialysis is currently a common treatment for patients with kidney failure in hospitals, and the flow state of blood is crucial to patient safety. According to the principles of blood fluid dynamics, the flow state of fluid is affected by various factors such as tubing shape, size, flow velocity, and fluid properties. The formation of eddies and turbulence increases the contact time between blood and the tubing wall, promoting the aggregation of platelets and clotting factors, thereby increasing the risk of thrombosis.

[0004] Existing technology CN219481053U discloses a hemodialysis venous chamber device, comprising a main tube, a venous chamber assembly, and a secondary catheter. This hemodialysis venous chamber device consists of a main tube, a secondary catheter, and a venous chamber assembly. The main tube and the venous chamber assembly are detachably connected. The venous chamber of the venous chamber assembly is designed as a spiral chamber. The main tube and the secondary catheter are integrally formed and connected, which can reduce the occurrence of coagulation. However, it still has the problems of slow flow rate in the venous chamber, insufficient drainage effect, and the circulation tubing connected to the venous chamber being prone to coagulation and blockage. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a spiral circulating dialysis tubing that guides blood to flow along the guide channel, forming a swirling flow pattern. This solves the problem of thrombus blockage caused by eddies and turbulence, improves the blood flow state within the chamber, reduces the blood's residence time within the chamber, thereby lowering the risk of blood clotting. By increasing the contact area between air bubbles and the spiral blades, it more effectively removes air bubbles from the blood.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides a spiral circulating dialysis tubing, comprising a spiral venous chamber, a dialysis machine connector, a spiral tube, a transfusion needle, and a liquid valve; the dialysis machine connector is connected to the upper end of the spiral venous chamber via the spiral tube; the lower end of the spiral venous chamber is connected to the liquid valve via the spiral tube, and the liquid valve is connected to the transfusion needle via the spiral tube; the spiral venous chamber is provided with a spiral blade, the width of which is greater than the radius of the spiral venous chamber, and is fixedly disposed on the wall of the spiral venous chamber; the spiral tube is provided with an arc-shaped groove, which is arranged spirally on the inner wall of the spiral tube.

[0008] Furthermore, the spiral vein pot also includes a pot body, an exhaust valve, and a pot body connecting pipe; the spiral blade is disposed inside the pot body, and an exhaust valve is disposed above the spiral vein pot to discharge the gas in the spiral vein pot; a pot body connecting pipe is disposed at the center of the upper and lower ends of the spiral vein pot to connect the spiral pipeline.

[0009] Furthermore, the distance between the tip of the spiral blade and the tip of the spiral vein pot is 10mm.

[0010] Furthermore, multiple arc-shaped grooves are provided inside the spiral pipe, and the spacing between each arc-shaped groove is the same.

[0011] Furthermore, the liquid valve comprises a housing, a valve core, and a valve connecting pipe. The valve connecting pipe is disposed on the housing, and there are two valve connecting pipes, which are fixedly disposed coaxially on the housing. The valve core is disposed inside the housing.

[0012] Furthermore, one end of the dialysis machine connector is connected to the dialysis machine via a plug-in connection.

[0013] Furthermore, a filter pot is also provided between the dialysis machine connector and the spiral vein pot, and the filter pot is provided with a filter funnel and a collection screen, with the collection screen located at the center of the filter funnel.

[0014] Furthermore, the filter funnel is made of stainless steel mesh with a through hole in the center, and the edge of the filter funnel is fixedly connected to the filter pot.

[0015] Furthermore, the collecting net is a one-way closed stainless steel mesh tube, and the open end of the collecting net is connected to the through hole at the center of the filter funnel.

[0016] Furthermore, the filter pitcher and the spiral vein pitcher are connected by a plug-in connection.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are:

[0018] By incorporating a flow-guiding spiral groove design, blood flows more smoothly within the tubing, creating a swirling flow effect that reduces the risk of blockage caused by blood stagnation and accumulation. The tangential direction of blood flow into the venous reservoir and the spiral blades ensures more stable blood flow within the reservoir, removing air bubbles more quickly and reducing eddies and turbulence, thereby lowering the risk of blood clotting. Compared to conventional methods, this invention avoids the use of heparin, reducing the risk of thrombosis and thus reducing the dosage of anticoagulants. Furthermore, reducing the risk of blockage lowers the workload of healthcare workers, allowing them more time to focus on other patient needs. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1 This is a structural diagram of the spiral circulation dialysis tubing of this utility model.

[0021] Figure 2 This is a structural diagram of the filter jug ​​of this utility model.

[0022] Figure 3 This is a structural diagram of the spiral pipeline of this utility model.

[0023] In the diagram: 1. Dialysis machine connector; 2. Filter jug; 3. Spiral venous jug; 4. Spiral blade; 5. Spiral tubing; 6. Liquid valve; 7. Transfusion needle; 8. Filter funnel; 9. Collection screen; 10. Arc groove. Detailed Implementation

[0024] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0025] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a spiral circulation dialysis tubing, such as... Figures 1-3 As shown, the device includes a spiral venous chamber 3, a dialysis machine connector 1, a spiral tube 5, a blood transfusion needle 7, and a liquid valve 6. The dialysis machine connector 1 is connected to the upper end of the spiral venous chamber 3 via the spiral tube 5. The lower end of the spiral venous chamber 3 is connected to the liquid valve 6 via the spiral tube 5, and the liquid valve 6 is connected to the blood transfusion needle 7 via the spiral tube. The spiral venous chamber 3 is provided with a spiral blade 4, the width of which is greater than the radius of the spiral venous chamber 3, and it is fixedly installed on the wall of the spiral venous chamber 3. The spiral tube 5 is provided with an arc-shaped groove 10, which is arranged spirally on the inner wall of the spiral tube 5, and multiple arc-shaped grooves 10 are provided inside the spiral tube 5.

[0026] The spiral vein vessel 3 also includes a vessel body, an exhaust valve, and a vessel body connecting pipe. The vessel body has the same structure as a regular vein vessel, and its function is the same as a regular vein vessel: to contain and process blood. The spiral blades 4 are located inside the vessel body, and the width of the spiral blades 4 is greater than the radius of the vessel body. This allows the blood to flow down in a spiral pattern along the spiral blades 4 when it enters the vessel body, preventing blood from dripping directly onto the bottom of the vessel body and causing splashing. Since air bubbles will mix into the blood during splashing, this solves the problem of air bubbles entering the body with the blood. The distance between the tip of the spiral blades 4 and the tip of the spiral vein vessel 3 is 10mm, allowing blood to drip down, but the drop is small enough to prevent splashing. It also allows for observation of the blood flow rate. An exhaust valve is located at the top of the spiral vein vessel 3 to expel gas from the vessel. When the blood contains gas, the blood and gas separate in the spiral vein vessel 3. The blood flows smoothly along the spiral blades 4, while the gas accumulates at the top of the vessel and is discharged from the exhaust valve. The spiral vein pot 3 has a pot body connecting pipe at the center of its upper and lower ends, which is used to connect the spiral pipeline 5.

[0027] The spiral conduit 5 is provided with arc-shaped grooves 10, arranged in a spiral shape on the inner wall of the spiral conduit 5. These arc-shaped spiral grooves alter the blood flow path, causing blood to flow along the path formed by the grooves. This prevents excessive lateral or longitudinal flow fluctuations within the conduit, reduces turbulence through an orderly flow path, and avoids the activation of coagulation factors and prothrombin, thereby reducing the risk of thrombosis. Multiple arc-shaped grooves 10 are provided inside the spiral conduit 5, allowing more blood to flow along the path formed by the grooves, thus improving the flow guidance effect of the spiral conduit 5.

[0028] The liquid valve 6 consists of a housing, a valve core, and a valve connecting pipe. The valve connecting pipe is mounted on the housing, and there are two valve connecting pipes, which are fixedly mounted coaxially on the housing. The valve core is located inside the housing. Because the spiral tubing 5 has a different structure from ordinary infusion tubing, ordinary tubing switches cannot completely close the spiral tubing 5. Therefore, by turning the valve core, the spiral tubing 5 can not only be completely closed, but the blood flow rate can also be controlled.

[0029] One end of the dialysis machine connector 1 is connected to the dialysis machine via a plug-in connection. A filter cartridge 2 is also provided between the dialysis machine connector 1 and the spiral venous chamber 3. The filter cartridge 2 contains a filter funnel 8 and a collection screen 9. The collection screen 9 is located at the center of the filter funnel 8. The filter funnel 8 is made of stainless steel mesh, and the collection screen 9 is a one-way closed stainless steel mesh tube. The open end of the collection screen 9 is connected to the filter funnel 8. During blood flow, this allows for simultaneous filtration and collection of blood clots. Blood clots are generally thrombi formed by the activation of clotting factors and prothrombin by the impact of blood flow. The collection of blood clots does not affect the continuous flow of blood. The filter cartridge 2 and the spiral venous chamber 3 are connected via a plug-in connection, allowing the collection cartridge to be replaced promptly when it is full of blood clots.

[0030] Working principle:

[0031] When blood enters the filter pot 2 through the dialysis machine connector 1, it flows continuously downwards through the stainless steel mesh, while blood clots are collected by the collection net 9. When the blood enters the spiral venous pot 3, it drips onto the spiral vane 4. Due to the small drop between the top of the spiral venous pot 3 and the top of the spiral vane 4, there is no significant splashing. This step reduces the possibility of air mixing into the blood. The blood flows down the spiral vane 4 and enters the spiral tube 5. The curved spiral groove changes the path of the blood flow, allowing the blood to flow along the path formed by the spiral groove. This prevents a large amount of lateral or longitudinal flow fluctuations in the tube and reduces turbulence through an orderly flow path. The flow rate of the blood can be controlled by the liquid valve 6.

[0032] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A spiral cycler dialysis tubing, characterized by, Spiral vein pot, dialysis machine connector, spiral pipeline, blood transfusion needle and liquid valve are included; the dialysis machine connector is connected with the upper end of the spiral vein pot through the spiral pipeline; the lower end of the spiral vein pot is connected with the liquid valve through the spiral pipeline, and the liquid valve is connected with the blood transfusion needle through the spiral pipeline; the spiral wing is arranged in the spiral vein pot, the width of the spiral wing is greater than the radius of the spiral vein pot, and the spiral wing is fixedly arranged on the wall of the spiral vein pot; the arc-shaped grooves are arranged in the spiral pipeline and arranged in a spiral shape on the inner wall of the spiral pipeline.

2. A spiral loop dialysis line according to claim 1, characterized in that The spiral vein pot further includes a pot body, an exhaust valve and a pot body connecting pipe; the spiral wing is arranged in the interior of the pot body, the exhaust valve is arranged above the spiral vein pot and used for exhausting gas in the spiral vein pot, and the central positions of the upper end and the lower end of the spiral vein pot are respectively provided with the pot body connecting pipe and used for connecting the spiral pipeline.

3. A spiral loop dialysis line according to claim 2, characterized in that The distance between the top end of the spiral wing and the top end of the spiral vein pot is 10mm.

4. The spiral loop dialysis line according to claim 1, wherein The arc-shaped grooves are arranged in the spiral pipeline and have the same distance between each arc-shaped groove.

5. The spiral looped dialysis line according to claim 1, wherein, The liquid valve is composed of a shell, a valve core and a valve connecting pipe; the valve connecting pipe is arranged on the shell; the valve connecting pipe has two and is coaxially and fixedly arranged on the shell; and the valve core is arranged in the shell.

6. A spiral loop dialysis line according to claim 1, characterized in that One end of the dialysis machine connector is connected with the dialysis machine in the form of insertion.

7. A spiral loop dialysis line according to claim 1, wherein A filter pot is further arranged between the dialysis machine connector and the spiral vein pot; the filter pot is provided with a filter funnel and a collection net; and the collection net is arranged at the central position of the filter funnel.

8. A spiral loop dialysis line according to claim 7, characterized in that The filter funnel is made of a stainless steel net and is provided with a through hole at the central position; and the edge position of the filter funnel is fixedly connected with the filter pot.

9. A spiral loop dialysis line according to claim 8, characterized in that The collection net is a one-way closed stainless steel net pipe; and the opening end of the collection net is connected with the through hole at the central position of the filter funnel.

10. The spiral looped dialysis line according to claim 7, wherein The filter pot is connected with the spiral vein pot in the form of insertion.

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