Hemoperfusion and hemodialysis combined connecting tube

Abstract

The utility model discloses a blood perfusion and hemodialysis combined connecting tube, which belongs to the technical field of medical instruments and comprises a branch tube, an artery port, a vein port, a perfusion device connector, a dialyzer connector and a waste liquid bag. The artery port is connected with the vein port through a branch pipe; the branch pipe is connected in series with a dialyzer; the dialyzer is connected with the branch pipe through a dialyzer interface; the perfusion device is connected to the branch pipes at the two ends of the dialyzer in parallel through the branch pipes; the perfusion device is connected with the branch pipe through a perfusion device interface; a waste liquid bag is connected between the branch pipe and the branch pipe; and switch clamps are arranged on the branch pipes and the branch pipes so as to control the circulation of liquid in the pipeline. According to the connecting pipe for the combination of blood perfusion and hemodialysis, under the condition that the connecting pipe does not need to be disassembled and assembled, the connecting pipe is connected with a perfusion device and a dialyzer through a connecting flow schematic diagram, pre-flushing and machine operation of the combination of blood perfusion and hemodialysis are achieved through an adjusting switch, and the connecting pipe is simple in structure and convenient to use. And after the perfusion treatment is finished, a connecting pipeline does not need to be disconnected, so that the infection risk of a patient is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a blood perfusion combined with hemodialysis connecting tube. Background Art

[0002] Blood purification therapy includes hemodialysis, hemofiltration, high-flux dialysis, CRRT (continuous renal replacement therapy) and hemoperfusion, but hemodialysis combined with hemoperfusion (HD+HP) has become the most commonly used combined artificial kidney treatment method in clinical practice. This method can effectively remove endogenous and exogenous toxins in the patient's body and is widely accepted in clinical practice.

[0003] During treatment, a perfusion device and a dialyzer are usually used in series, but sometimes a perfusion device or a dialyzer needs to be used alone. Before use, the perfusion device and other filters need to be pre-flushed separately. However, in the prior art, when a perfusion device or a dialyzer is used alone, the connecting pipes need to be frequently disassembled and assembled. During the process of disassembling the pipes, the ends of the perfusion device, the ends of the dialyzer, and the ends of the pipes are exposed to the air. Bacteria and dust in the air can cause contamination inside the pipes, which can adversely affect the patient's treatment. Utility Model Content

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] A blood perfusion combined with hemodialysis connecting tube comprises: a branch tube, an arterial port, a venous port, a perfusion device interface, a dialyzer interface, and a waste liquid bag; the arterial port and the venous port are connected via the branch tube; a dialyzer is connected in series on the branch tube; the dialyzer and the branch tube are connected via the dialyzer interface; the perfusion device is connected in parallel to the branch tubes at both ends of the dialyzer via branch tubes; the perfusion device and the branch tubes are connected via the perfusion device interface; a waste liquid bag is connected between the branch tube and the branch tube; and switch clamps are provided on both the branch tube and the branch tube to control the circulation of liquid in the pipeline.

[0006] Furthermore, the branch includes a first branch, a second branch and a third branch; the first branch is connected to the arterial port; the first branch is connected to the third branch; the third branch is connected to the first end of the dialyzer; the second branch is connected to the venous port; and the second branch is connected to the second end of the dialyzer.

[0007] Furthermore, the first branch pipe is provided with a first switch clamp; the second branch pipe is provided with a second switch clamp; and the third branch pipe is provided with a third switch clamp.

[0008] Furthermore, the dialyzer and the third branch are connected via a first dialysis branch; the dialyzer and the second branch are connected via a second dialysis branch;

[0009] The dialyzer interface includes a first dialysis interface and a second dialysis interface; the first dialysis interface is arranged on the first dialysis branch and connected to the first end of the dialyzer; the second dialysis interface is arranged on the second dialysis branch and connected to the second end of the dialyzer.

[0010] Furthermore, the branch pipe includes a first branch pipe and a second branch pipe; the first branch pipe is arranged between the first branch pipe and the third branch pipe; the first end of the first branch pipe, the first branch pipe and the third branch pipe are connected by a first tee pipe; the second branch pipe is arranged between the third branch pipe and the first dialysis branch pipe; the first end of the second branch pipe, the third branch pipe and the first dialysis branch pipe are connected by a second tee pipe; the perfusion device is connected between the second end of the first branch pipe and the second end of the second branch pipe.

[0011] Furthermore, the perfusion device and the first branch pipe are connected via a first perfusion branch pipe; the perfusion device and the second branch pipe are connected via a second perfusion branch pipe;

[0012] The perfusion device includes a first perfusion device interface and a second perfusion device interface; the first perfusion device interface is arranged on the first perfusion branch and connected to the first end of the perfusion device; the second perfusion device interface is arranged on the second perfusion branch and connected to the second end of the perfusion device.

[0013] Furthermore, the branch pipe also includes a third branch pipe; the first end of the third branch pipe, the second dialysis branch pipe, and the second branch pipe are connected through a third tee pipe; the second end of the third branch pipe is connected to a side pipe and a waste liquid bag branch pipe through a fourth tee pipe; the side pipe is connected to the second perfusion branch pipe and the second branch pipe through a fifth tee pipe; and a waste liquid bag is connected to the waste liquid bag branch pipe.

[0014] Furthermore, a fourth switch clamp is provided on the first branch pipe; a fifth switch clamp is provided on the second branch pipe; and a sixth switch clamp is provided on the third branch pipe.

[0015] Furthermore, a fluid infusion branch is provided on the first perfusion branch; the second end of the first branch pipe, the first perfusion branch and the fluid infusion branch are connected via a sixth three-way pipe; and the fluid infusion branch is connected to a fluid infusion port.

[0016] Furthermore, a seventh switch clamp is provided on the side tube; an eighth switch clamp is provided on the waste liquid bag branch tube; and a ninth switch clamp is provided on the fluid infusion branch tube.

[0017] Beneficial effects:

[0018] The utility model provides a blood perfusion combined with hemodialysis connecting tube, which connects the perfusion device, the dialyzer and the waste liquid bag, so that the perfusion device or the dialyzer can be pre-flushed separately without frequent installation and removal of the connecting tube, and the perfusion device and the dialyzer can be pre-flushed at the same time, which reduces operational errors and is more convenient and quick to use. In addition, the connection operation of the connecting tube to the perfusion device and the dialyzer can be completed according to the connection flow diagram without disassembling the connecting tube, and the pre-flushing and machine operation of the blood perfusion combined with hemodialysis can be realized by adjusting the switch. There is no need to disconnect the connecting tube after the perfusion treatment is completed, which reduces the risk of infection for patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the hemoperfusion combined with hemodialysis connecting tube connected to the hemoperfusion device and the dialyzer;

[0020] Figure 2 This is a schematic diagram of the connection process of the hemoperfusion combined with hemodialysis connecting tube of the utility model;

[0021] Among them, 1. Arterial port; 2. Venous port; 3. Perfusion device; 4. Dialyzer; 5. First branch; 6. Second branch; 7. Third branch; 8. First dialysis branch; 9. Second dialysis branch; 10. First branch; 11. Second branch; 12. Third branch; 13. First perfusion branch; 14. Second perfusion branch; 15. Side tube; 16. Waste bag branch; 17. Waste bag; 18. Infusion branch; 19. Infusion port; 20. First switch clamp; 21. Second switch clamp; 22. Third switch clamp; 23. Fourth switch clamp; 24. Fifth switch clamp; 25. Sixth switch clamp; 26. Seventh switch clamp; 27. Eighth switch clamp; 28. Ninth switch clamp; 29. ​​First three-way pipe; 30. Second three-way pipe; 31. Third three-way pipe; 32. Fourth three-way pipe; 33. Fifth three-way pipe; 34. Sixth three-way pipe; 35. First dialyzer interface; 36. Second dialyzer interface; 37. First perfusion interface; 38. Second perfusion interface. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "horizontal," "inner," "outer," "one side," etc., indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are used only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed or operate in a specific orientation, and therefore should not be understood as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can mean fixed connection, detachable connection, or integral connection; they can be mechanical connection or electrical connection; they can be direct connection or indirect connection through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example 1

[0025] like Figure 1 As shown, a blood perfusion combined with hemodialysis connecting tube includes: a branch tube, an arterial port 1, a venous port 2, a perfusion device 3 interface, a dialyzer 4 interface and a waste liquid bag 17; the arterial port 1 and the venous port 2 are connected by a branch tube; the dialyzer 4 is connected in series on the branch tube; the dialyzer 4 and the branch tube are connected via the dialyzer 4 interface; the perfusion device 3 is connected in parallel to the branch tubes at both ends of the dialyzer 4 through branch tubes; the perfusion device 3 and the branch tube are connected via the perfusion device 3 interface; a waste liquid bag 17 is connected between the branch tube and the branch tube; and switch clamps are provided on both the branch tube and the branch tube to control the flow of liquid in the pipeline.

[0026] In this embodiment, the branch tubes include a first branch tube 5, a second branch tube 6 and a third branch tube 7; the first branch tube 5 is connected to the arterial port 1; the first branch tube 5 is connected to the third branch tube 7; the third branch tube 7 is connected to the first end of the dialyzer 4; the second branch tube 6 is connected to the venous port 2; and the second branch tube 6 is connected to the second end of the dialyzer 4.

[0027] In this embodiment, the first branch pipe 5 is provided with a first switch clamp 20 ; the second branch pipe 6 is provided with a second switch clamp 21 ; and the third branch pipe 7 is provided with a third switch clamp 22 .

[0028] In this embodiment, the dialyzer 4 and the third branch 7 are connected via a first dialysis branch 8; the dialyzer 4 and the second branch 6 are connected via a second dialysis branch 98;

[0029] The dialyzer 4 interface includes a first dialysis interface 35 and a second dialysis interface 36; the first dialysis interface 35 is arranged on the first dialysis branch 8 and connected to the first end of the dialyzer 4; the second dialysis interface 36 is arranged on the second dialysis branch 98 and connected to the second end of the dialyzer 4.

[0030] In this embodiment, the branch pipes include a first branch pipe 10 and a second branch pipe 11; the first branch pipe 10 is arranged between the first branch pipe 5 and the third branch pipe 7; the first end of the first branch pipe 10, the first branch pipe 5 and the third branch pipe 7 are connected by a first tee pipe 29; the second branch pipe 11 is arranged between the third branch pipe 7 and the first dialysis branch pipe 8; the first end of the second branch pipe 11, the third branch pipe 7 and the first dialysis branch pipe 8 are connected by a second tee pipe 30; the second end of the first branch pipe 10 and the second end of the second branch pipe 11 are connected to the perfusion device 3.

[0031] In this embodiment, the perfusion device 3 and the first branch pipe 10 are connected via a first perfusion branch pipe 13; the perfusion device 3 and the second branch pipe 11 are connected via a second perfusion branch pipe 14;

[0032] The perfusion device 3 includes a first perfusion interface 37 and a first perfusion interface 38; the first perfusion interface 37 is arranged on the first perfusion branch 13 and connected to the first end of the perfusion device 3; the first perfusion interface 38 is arranged on the second perfusion branch 14 and connected to the second end of the perfusion device 3.

[0033] In this embodiment, the branch pipe also includes a third branch pipe 12; the first end of the third branch pipe 12, the second dialysis branch pipe 98, and the second branch pipe 6 are connected through a third three-way pipe 31; the second end of the third branch pipe 12 is connected to the side pipe 15 and the waste liquid bag branch pipe 16 through a fourth three-way pipe 32; the side pipe 15 is connected to the second perfusion branch pipe 14 and the second branch pipe 11 through a fifth three-way pipe 33; and the waste liquid bag branch pipe 16 is connected to a waste liquid bag 17.

[0034] In this embodiment, a fourth switch clamp 23 is provided on the first branch pipe 10 ; a fifth switch clamp 24 is provided on the second branch pipe 11 ; and a sixth switch clamp 25 is provided on the third branch pipe 12 .

[0035] In this embodiment, a fluid infusion branch 18 is provided on the first perfusion branch 13; the second end of the first branch pipe 10, the first perfusion branch 13 and the fluid infusion branch 18 are connected by a sixth three-way pipe 34; and a fluid infusion port 19 is connected to the fluid infusion branch 18.

[0036] In this embodiment, a seventh switch clamp 26 is provided on the side tube 15 ; an eighth switch clamp 27 is provided on the waste liquid bag branch tube 16 ; and a ninth switch clamp 28 is provided on the infusion branch tube 18 .

[0037] Through the above technical solution, each switch clamp can better control the direction of liquid flow in the pipeline during different operations, and prohibit liquid from entering the pipeline where no liquid flows.

[0038] The utility model provides a hemoperfusion combined with hemodialysis connecting tube, which is used in the following manner during use:

[0039] Priming the perfusion device 3: Open the seventh switch clamp 26, the eighth switch clamp 27, and the ninth switch clamp 28, while keeping the other switch clamps closed. Deliver priming solution through the infusion port 19. The priming solution sequentially passes through the infusion branch 18, the first perfusion branch 13, the perfusion device 3, the second perfusion branch 14, the side tube 15, the waste liquid bag branch 16, and finally flows into the waste liquid bag 17, thus completing priming of the perfusion device 3.

[0040] Priming the dialyzer 4: Open the first switch clamp 20, the third switch clamp 22, the sixth switch clamp 25 and the eighth switch clamp 27, and keep the other switch clamps closed. The priming liquid is delivered through the arterial port 1. The priming liquid passes through the arterial port 1, the first branch 5, the third branch 7, the first dialysis branch 8, the dialyzer 4, the second dialysis branch 9, the third branch 12, the waste liquid bag branch 16, and finally flows into the waste liquid bag 17 to achieve priming of the dialyzer 4.

[0041] Priming the perfusion device 3 and the dialyzer 4: Open the first switch clamp 20, the fourth switch clamp 23, the fifth switch clamp 24, the sixth switch clamp 25 and the eighth switch clamp 27, and deliver the priming solution through the arterial port 1. The priming solution passes through the arterial port 1, the first branch pipe 5, the first branch pipe 10, the first perfusion branch pipe 13, the perfusion device 3, the second perfusion branch pipe 14, the second branch pipe 11, the first dialysis branch pipe 8, the dialyzer 4, the second dialysis branch pipe 9, the third branch pipe 12, the waste liquid bag branch pipe 16, and finally flows into the waste liquid bag 17, thereby priming the perfusion tube and the dialyzer 4.

[0042] Perform combined perfusion and dialysis treatment: open the first switch clamp 20, the fourth switch clamp 23, the fifth switch clamp 24 and the second switch clamp 21. At this time, the dialyzer 4 is connected in series with the perfusion device 3 to perform perfusion treatment; after the perfusion is completed, close the first switch clamp 20, the fourth switch clamp 23, the fifth switch clamp 24 and the second switch clamp 21, and open the first switch clamp 20, the third switch clamp 22 and the second switch clamp 21 to perform dialysis treatment; this avoids the risks that may arise when disassembling the perfusion device 3, and realizes the combined use of blood perfusion and hemodialysis.

[0043] like Figure 2 As shown, the connection process of a hemoperfusion combined with hemodialysis connecting tube provided by the present invention is as follows:

[0044] Step 1. Connect the various pipelines: connect the first branch pipe, the third branch pipe, and the first branch pipe through the first tee; connect the third branch pipe, the first dialysis branch pipe, and the second branch pipe through the second tee; connect the second dialysis branch pipe, the second branch pipe, and the third branch pipe through the third tee; connect the third branch pipe, the waste liquid bag branch pipe, and the side pipe through the fourth tee; connect the side pipe, the second branch pipe, and the second perfusion branch pipe through the fifth tee; connect the first perfusion branch pipe, the first branch pipe, and the infusion branch pipe through the sixth tee. The switch clamps on each pipeline are all in the closed state;

[0045] Step 2: Connecting the dialyzer, perfusion device, and waste bag: Connect the dialyzer between the first dialysis branch and the second dialysis branch, connect the perfusion device between the first perfusion branch and the second perfusion branch, and connect the waste bag to the end of the waste bag branch;

[0046] Step 3: Connect normal saline to the arterial port;

[0047] Step 4: Establish vascular access.

[0048] In this way, the perfusion device 3 and the dialyzer 4 can be pre-flushed separately without disassembling the connecting tube, or the perfusion device 3 and the dialyzer 4 can be pre-flushed at the same time. When blood perfusion is combined with other blood purification methods in series treatment, the pipeline connection operation is visible according to the connection flow diagram of the connecting tube. After the perfusion treatment is completed, there is no need to frequently disconnect the connecting tube, which reduces operational errors, makes the operation more convenient, improves efficiency, and reduces the risk of infection for patients.

[0049] The above are merely preferred embodiments of the present invention and do not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A blood perfusion combined with hemodialysis connecting tube, characterized in that: include: A branch pipe, an arterial port, a venous port, a perfusion device interface, a dialyzer interface and a waste liquid bag; the arterial port and the venous port are connected via the branch pipe; a dialyzer is connected in series on the branch pipe; the dialyzer and the branch pipe are connected via the dialyzer interface; the perfusion device is connected in parallel to the branch pipes at both ends of the dialyzer via branch pipes; the perfusion device and the branch pipes are connected via the perfusion device interface; a waste liquid bag is connected between the branch pipe and the branch pipe; and switch clamps are provided on both the branch pipe and the branch pipe to control the circulation of liquid in the pipeline.

2. The hemoperfusion combined with hemodialysis connecting tube according to claim 1, characterized in that: The branch pipes include a first branch pipe, a second branch pipe and a third branch pipe; the first branch pipe is connected to the arterial port; the first branch pipe is connected to the third branch pipe; the third branch pipe is connected to the first end of the dialyzer; the second branch pipe is connected to the venous port; and the second branch pipe is connected to the second end of the dialyzer.

3. The hemoperfusion combined with hemodialysis connecting tube according to claim 2, characterized in that: The first branch pipe is provided with a first switch clamp; the second branch pipe is provided with a second switch clamp; and the third branch pipe is provided with a third switch clamp.

4. The hemoperfusion combined with hemodialysis connecting tube according to claim 2, characterized in that: The dialyzer and the third branch are connected via a first dialysis branch; the dialyzer and the second branch are connected via a second dialysis branch; The dialyzer interface includes a first dialysis interface and a second dialysis interface; the first dialysis interface is arranged on the first dialysis branch and connected to the first end of the dialyzer; the second dialysis interface is arranged on the second dialysis branch and connected to the second end of the dialyzer.

5. The hemoperfusion combined with hemodialysis connecting tube according to claim 4, characterized in that: The branch pipe includes a first branch pipe and a second branch pipe; the first branch pipe is arranged between the first branch pipe and the third branch pipe; the first end of the first branch pipe, the first branch pipe and the third branch pipe are connected by a first tee pipe; the second branch pipe is arranged between the third branch pipe and the first dialysis branch pipe; the first end of the second branch pipe, the third branch pipe and the first dialysis branch pipe are connected by a second tee pipe; the perfusion device is connected between the second end of the first branch pipe and the second end of the second branch pipe.

6. The hemoperfusion combined with hemodialysis connecting tube according to claim 5, characterized in that: The perfusion device and the first branch pipe are connected via a first perfusion branch pipe; the perfusion device and the second branch pipe are connected via a second perfusion branch pipe; The perfusion device includes a first perfusion device interface and a second perfusion device interface; the first perfusion device interface is arranged on the first perfusion branch and connected to the first end of the perfusion device; the second perfusion device interface is arranged on the second perfusion branch and connected to the second end of the perfusion device.

7. The hemoperfusion combined with hemodialysis connecting tube according to claim 6, characterized in that: The branch pipe also includes a third branch pipe; the first end of the third branch pipe, the second dialysis branch pipe, and the second branch pipe are connected through a third tee pipe; the second end of the third branch pipe is connected to a side pipe and a waste liquid bag branch pipe through a fourth tee pipe; the side pipe is connected to the second perfusion branch pipe and the second branch pipe through a fifth tee pipe; and a waste liquid bag is connected to the waste liquid bag branch pipe.

8. The hemoperfusion combined with hemodialysis connecting tube according to claim 7, characterized in that: The first branch pipe is provided with a fourth switch clamp; the second branch pipe is provided with a fifth switch clamp; and the third branch pipe is provided with a sixth switch clamp.

9. The hemoperfusion combined with hemodialysis connecting tube according to claim 7, characterized in that: The first perfusion branch is provided with a fluid infusion branch; the second end of the first branch pipe, the first perfusion branch and the fluid infusion branch are connected via a sixth three-way pipe; the fluid infusion branch is connected to a fluid infusion port.

10. The hemoperfusion combined with hemodialysis connecting tube according to claim 9, characterized in that: The side tube is provided with a seventh switch clamp; the waste liquid bag branch tube is provided with an eighth switch clamp; and the infusion branch tube is provided with a ninth switch clamp.

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