Extracorporeal membrane oxygenation device capable of quickly replacing membrane lung

Abstract

The utility model relates to an extracorporeal membrane oxygenation device capable of quickly replacing a membrane lung, which comprises a blood pump, and an outlet of the blood pump is provided with a first Y-shaped distribution pipe comprising a first header pipe, a first branch pipe and a second branch pipe; an inlet of the membrane lung is connected with the first branch pipe, a first pipeline clamp valve is arranged between the inlet and the first branch pipe, an outlet of the membrane lung is provided with a second Y-shaped distribution pipe comprising a second header pipe, a third branch pipe and a fourth branch pipe, and the fourth branch pipe is connected with the membrane lung, and a second pipeline clamp valve is arranged between the fourth branch pipe and the membrane lung; two ends of the bridge section pipeline are connected with the second and third branch pipes and are correspondingly provided with third and fourth pipeline clamp valves; the three-way valves are respectively arranged at two ends of the bridge section pipeline. When the membrane lung is replaced, the three-way valve pumps pre-filling liquid into the bridge section pipeline, the pipeline is cut off to connect a new membrane lung, the third and fourth pipeline clamp valves are opened, the first and second pipeline clamp valves are closed, the original treatment scheme is not interrupted in the whole replacement process, the vital signs of a patient fluctuate, and the membrane lung is replaced. And the risk of occupational exposure of medical staff does not exist.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an extracorporeal membrane oxygenation device capable of quickly replacing a membrane lung. Background Art

[0002] The core parts of extracorporeal membrane oxygenation (ECMO) are membrane lungs and blood pumps, which can provide long-term cardiopulmonary support for patients with severe cardiopulmonary failure, buying precious time for the rescue of critically ill patients. Among them, the membrane lung is a consumable and needs to be replaced immediately in response to emergencies during certain treatments.

[0003] Common extracorporeal membrane oxygenation equipment also includes venous tubes, arterial tubes and connecting tubes. The venous tube is led out from the human femoral vein and connected to the inlet of the blood pump. The outlet of the blood pump is connected to the inlet of the membrane lung with a connecting tube, and the outlet of the membrane lung is connected to the human femoral artery through an arterial tube. When replacing the membrane lung during ECMO use, it is necessary to cut the arterial tubes and connecting tubes before and after the membrane lung, and then connect a new membrane lung. However, doing so will have many disadvantages. One is that it will cause interruption of treatment for the patient, and the patient may have potential risks such as hypoxemia and hypotension. In severe cases, it may even endanger the patient's life; the second is that when cutting the original pipeline to connect the new membrane lung, it is easy to cause blood splattering, resulting in occupational exposure of medical staff, and the whole process is cumbersome and time-consuming, which is not convenient for clinical work. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the replacement of the membrane lung during the use of the extracorporeal membrane oxygenation device easily causes the interruption of treatment for the patient and occupational exposure for the medical staff.

[0005] In order to solve the above technical problems, the utility model provides an extracorporeal membrane oxygenation device capable of quickly replacing a membrane lung, comprising:

[0006] A blood pump, the outlet of which is provided with a first Y-shaped distribution pipe, the first Y-shaped distribution pipe comprising a first main pipe, a first branch pipe and a second branch pipe, the first main pipe being connected to the blood pump;

[0007] A membrane lung, wherein the inlet is connected to the first branch tube, and a first pipeline clamp valve is provided between the first branch tube and the membrane lung, and the outlet of the membrane lung is provided with a second Y-shaped distribution tube, the second Y-shaped distribution tube includes a second main tube, a third branch tube and a fourth branch tube, the fourth branch tube is connected to the membrane lung, and a second pipeline clamp valve is provided between the membrane lung and the fourth branch tube;

[0008] A bridge section pipeline, whose two ends are respectively connected to the second branch pipe and the third branch pipe, a third pipeline clamp valve is provided between the bridge section pipeline and the second branch pipe, and a fourth pipeline clamp valve is further provided between the third branch pipe and the bridge section pipeline;

[0009] There are two three-way valves, which are respectively arranged on the bridge section pipeline at positions close to the third pipeline clamp valve and the fourth pipeline clamp valve.

[0010] In one embodiment of the utility model, the three-way valve comprises an input port, an output port and a pre-filling port, and the pre-filling port is used to inject pre-filling liquid into the bridge section pipeline.

[0011] In one embodiment of the utility model, a sealing tube is further provided between the inlet of the blood pump and the outlet of the membrane lung, and the sealing tube includes an arterial cannula and a venous cannula, one end of the arterial cannula is connected to the second main pipe, the other end of the arterial cannula is connected to the venous cannula, and the end of the venous cannula away from the arterial cannula is connected to the inlet of the blood pump.

[0012] In one embodiment of the present invention, a first connecting pipe is provided between the blood pump and the first main pipe.

[0013] In one embodiment of the present invention, a second connecting tube is provided between the membrane lung and the first branch tube, and the first pipeline clamp valve is clamped on the second connecting tube.

[0014] In one embodiment of the present invention, a third connecting tube is provided between the membrane lung and the fourth branch tube, and the second pipeline clamp valve is clamped on the third connecting tube.

[0015] In one embodiment of the present utility model, a fourth connecting pipe is provided between the bridge section pipeline and the second branch pipe, and the third pipeline clamp valve is clamped on the fourth connecting pipe.

[0016] In one embodiment of the present utility model, a fifth connecting pipe is provided between the bridge section pipeline and the third branch pipe, and the fourth pipeline clamp valve is clamped on the fifth connecting pipe.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The extracorporeal membrane oxygenation device with a membrane lung that can be quickly replaced described in the utility model connects the membrane lung and the bridge section pipeline in parallel through two Y-shaped distribution tubes, the first pipeline clamp valve and the second pipeline clamp valve are in a normally open state, and the third pipeline clamp valve and the fourth pipeline clamp valve are in a normally closed state. When the ECMO membrane lung needs to be replaced during use, the priming fluid is first injected into the bridge section pipeline using the three-way valve, and then the bridge section pipeline is cut off and a new membrane lung is connected to the bridge section pipeline, and the third pipeline clamp valve and the fourth pipeline clamp valve are opened in turn, and the first pipeline clamp valve and the second pipeline clamp valve are closed at the same time. The original treatment plan of the entire device is not interrupted during the process of replacing the membrane lung, and the patient's vital signs can be ensured to fluctuate. Moreover, when the membrane lung is connected, the bridge section pipeline is filled with priming fluid, and there is no risk of occupational exposure of medical staff. The overall operation is convenient and the replacement time of the membrane lung is greatly saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0020] Figure 1 This is a schematic diagram of the overall structure of the extracorporeal membrane oxygenation device of the utility model that can quickly replace the membrane lung;

[0021] Figure 2 This is a piping system diagram of an extracorporeal membrane oxygenation device of the utility model that can quickly replace a membrane lung.

[0022] Explanation of the reference numerals in the specification: 1. blood pump; 2. first Y-shaped distribution tube; 210. first main tube; 220. first branch tube; 230. second branch tube; 3. membrane lung; 4. second Y-shaped distribution tube; 410. second main tube; 420. third branch tube; 430. fourth branch tube; 5. bridge section pipeline; 6. three-way valve; 610. pre-filling port; 7. sealing tube; 710. arterial cannula; 720. venous cannula; 8. first pipeline clamp valve; 9. second pipeline clamp valve; 10. third pipeline clamp valve; 11. fourth pipeline clamp valve; 12. first connecting tube; 13. second connecting tube; 14. third connecting tube; 15. fourth connecting tube; 16. fifth connecting tube. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] Reference Figure 1 to Figure 2 As shown, the utility model provides an extracorporeal membrane oxygenation device capable of quickly replacing a membrane lung 3, comprising:

[0025] The blood pump 1 has a first Y-shaped distribution pipe 2 at its outlet, the first Y-shaped distribution pipe 2 includes a first main pipe 210, a first branch pipe 220 and a second branch pipe 230, and the first main pipe 210 is connected to the blood pump 1;

[0026] A membrane lung 3, whose inlet is connected to the first branch pipe 220, and a first pipeline clamp valve 8 is provided between the first branch pipe 220 and the membrane lung 3, and a second Y-shaped distribution pipe 4 is provided at the outlet of the membrane lung 3, and the second Y-shaped distribution pipe 4 includes a second main pipe 410, a third branch pipe 420 and a fourth branch pipe 430, and the fourth branch pipe 430 is connected to the membrane lung 3, and a second pipeline clamp valve 9 is provided between the membrane lung 3 and the fourth branch pipe 430;

[0027] The bridge section pipeline 5 has two ends connected to the second branch pipe 230 and the third branch pipe 420 respectively, a third pipeline clamp valve 10 is provided between the bridge section pipeline 5 and the second branch pipe 230, and a fourth pipeline clamp valve 11 is further provided between the third branch pipe 420 and the bridge section pipeline 5;

[0028] There are two three-way valves 6 , which are respectively arranged on the bridge section pipeline 5 near the third pipeline clamp valve 10 and the fourth pipeline clamp valve 11 .

[0029] This extracorporeal membrane oxygenation device with a membrane lung that can be quickly replaced connects the membrane lung 3 and the bridge pipeline 5 in parallel through two Y-shaped distribution tubes. The first pipeline clamp valve 8 and the second pipeline clamp valve 9 are normally open, and the third pipeline clamp valve 10 and the fourth pipeline clamp valve 11 are normally closed. When the membrane lung 3 needs to be replaced during ECMO use, the priming fluid is first injected into the bridge pipeline 5 using the three-way valve 6, and then the bridge pipeline 5 is cut off and a new membrane lung is connected to the bridge pipeline 5. The third pipeline clamp valve 10 and the fourth pipeline clamp valve 11 are opened in turn, and the first pipeline clamp valve 8 and the second pipeline clamp valve 9 are closed at the same time. The original treatment plan of the entire device is not interrupted during the process of replacing the membrane lung 3, which can ensure that the patient's vital signs fluctuate. Moreover, when the new membrane lung is connected, the bridge pipeline 5 is filled with priming fluid, and there is no risk of occupational exposure of medical staff. The overall operation is convenient and the replacement time of the membrane lung is greatly saved.

[0030] Specifically, each connecting pipeline maintains the pipeline material of the original extracorporeal membrane oxygenation (ECMO) equipment, and the Y-shaped distribution pipe, three-way valve 6 and bridge pipeline 5 are all made of medical high-pressure resistant materials; the length of the bridge pipeline 5 should ensure the smooth connection of the new membrane lung; the inlet and outlet of the three-way valve 6 should be connected to the pipeline with a clamp to ensure the airtightness of the pipeline; the pipeline clamp valve should use a valve that matches the pipeline size and closes tightly, and can be customized if necessary.

[0031] Furthermore, the three-way valve 6 includes an input port, an output port and a pre-filling port 610 , and the pre-filling port 610 is used to inject pre-filling liquid into the bridge section pipeline 5 .

[0032] Specifically, the input port of the three-way valve 6 at the rear end is tightly connected to the rear end of the bridge section pipeline 5, the input port of the three-way valve 6 at the rear end is tightly connected to the fifth connecting pipe 16 mentioned later, the input port of the three-way valve 6 at the front end is tightly connected to the fourth connecting pipe 15 mentioned later, and the output port of the three-way valve 6 at the front end is tightly connected to the front end of the bridge section pipeline 5. The pre-filling ports 610 of the two three-way valves 6 are used for circulating the pre-filling liquid. In this embodiment, the pre-filling liquid is physiological saline to ensure that the pre-filling liquid can fill the entire bridge section pipeline 5.

[0033] Furthermore, a sealing tube 7 is provided between the inlet of the blood pump 1 and the outlet of the membrane lung 3. The sealing tube 7 includes an arterial cannula 710 and a venous cannula 720. One end of the arterial cannula 710 is connected to the second main pipe 410, and the other end of the arterial cannula 710 is connected to the venous cannula 720. The end of the venous cannula 720 away from the arterial cannula 710 is connected to the inlet of the blood pump 1.

[0034] Specifically, the sealing tube 7 seals all pipelines between the blood pump 1 and the membrane lung 3 to ensure the pipeline sealing of the entire device during transportation and movement. When in use, it is only necessary to cut it at a suitable position in the middle of the sealing tube 7. One section of the arterial cannula 710 is used to connect to the human femoral artery, and the other section of the venous cannula 720 is used to connect to the human femoral vein.

[0035] Further, a first connecting tube 12 is provided between the blood pump 1 and the first main pipe 210. A second connecting tube 13 is provided between the membrane lung 3 and the first branch pipe 220, and the first pipeline clamp valve 8 is clamped on the second connecting tube 13. A third connecting tube 14 is provided between the membrane lung 3 and the fourth branch pipe 430, and the second pipeline clamp valve 9 is clamped on the third connecting tube 14. A fourth connecting tube 15 is provided between the bridge section pipeline 5 and the second branch pipe 230, and the third pipeline clamp valve 10 is clamped on the fourth connecting tube 15. A fifth connecting tube 16 is provided between the bridge section pipeline 5 and the third branch pipe 420, and the fourth pipeline clamp valve 11 is clamped on the fifth connecting tube 16.

[0036] Specifically, the length of each connecting pipe is designed according to actual needs, and the connection between the above-mentioned components of each connecting pipe must be tight enough to ensure the normal use of the entire device.

[0037] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. An extracorporeal membrane oxygenation device capable of rapidly replacing a membrane lung, characterized in that: Includes: A blood pump, the outlet of which is provided with a first Y-shaped distribution pipe, the first Y-shaped distribution pipe comprising a first main pipe, a first branch pipe and a second branch pipe, the first main pipe being connected to the blood pump; A membrane lung, wherein the inlet is connected to the first branch tube, and a first pipeline clamp valve is provided between the first branch tube and the membrane lung, and the outlet of the membrane lung is provided with a second Y-shaped distribution tube, the second Y-shaped distribution tube includes a second main tube, a third branch tube and a fourth branch tube, the fourth branch tube is connected to the membrane lung, and a second pipeline clamp valve is provided between the membrane lung and the fourth branch tube; A bridge section pipeline, whose two ends are respectively connected to the second branch pipe and the third branch pipe, a third pipeline clamp valve is provided between the bridge section pipeline and the second branch pipe, and a fourth pipeline clamp valve is further provided between the third branch pipe and the bridge section pipeline; There are two three-way valves, which are respectively arranged on the bridge section pipeline at positions close to the third pipeline clamp valve and the fourth pipeline clamp valve.

2. The extracorporeal membrane oxygenation device with a rapidly replaceable membrane lung according to claim 1, characterized in that: The three-way valve comprises an input port, an output port and a pre-filling port, and the pre-filling port is used to inject pre-filling liquid into the bridge section pipeline.

3. The extracorporeal membrane oxygenation device with a rapidly replaceable membrane lung according to claim 1, characterized in that: A sealing tube is also provided between the inlet of the blood pump and the outlet of the membrane lung, and the sealing tube includes an arterial cannula and a venous cannula, one end of the arterial cannula is connected to the second main pipe, the other end of the arterial cannula is connected to the venous cannula, and the end of the venous cannula away from the arterial cannula is connected to the inlet of the blood pump.

4. The extracorporeal membrane oxygenation device with a rapidly replaceable membrane lung according to claim 1, characterized in that: A first connecting pipe is arranged between the blood pump and the first main pipe.

5. The extracorporeal membrane oxygenation device with a rapidly replaceable membrane lung according to claim 1, characterized in that: A second connecting tube is provided between the membrane lung and the first branch tube, and the first pipeline clamp valve is clamped on the second connecting tube.

6. The extracorporeal membrane oxygenation device with a rapidly replaceable membrane lung according to claim 1, characterized in that: A third connecting tube is provided between the membrane lung and the fourth branch tube, and the second pipeline clamp valve is clamped on the third connecting tube.

7. The extracorporeal membrane oxygenation device with a rapidly replaceable membrane lung according to claim 1, characterized in that: A fourth connecting pipe is provided between the bridge section pipeline and the second branch pipe, and the third pipeline clamp valve is clamped on the fourth connecting pipe.

8. The extracorporeal membrane oxygenation device with a rapidly replaceable membrane lung according to claim 1, characterized in that: A fifth connecting pipe is provided between the bridge section pipeline and the third branch pipe, and the fourth pipeline clamp valve is clamped on the fifth connecting pipe.

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