Extracorporeal membrane lung oxygenation machine

Abstract

The utility model provides an extracorporeal membrane lung oxygenation machine, relates to the technical field of medical instruments, and is used for shortening the on-machine time of a patient. The extracorporeal membrane lung oxygenation machine comprises a movable support, a water tank and a main machine. The movable support comprises a tray and a supporting rod, a plurality of universal wheels are arranged at the bottom of the tray, and the supporting rod is connected with the tray. The water tank is detachably connected with the movable support. The main machine is detachably connected with the supporting rod, the main machine comprises a shell, a circuit module, an oxygenation centrifugal assembly and a display module, the shell is provided with a containing space, the circuit module is arranged in the containing space, the oxygenation centrifugal assembly is detachably connected with the shell and comprises a fixing plate, an oxygenator and a centrifugal pump, the oxygenator and the centrifugal pump are connected with the fixing plate, and the display module is arranged in the containing space. The display module is arranged on the shell and electrically connected with the circuit module. Therefore, the difficulty of pre-charging, testing and assembling of the extracorporeal membrane oxygenation machine can be reduced, so that the time of a patient on the machine can be saved, and consumable items can be conveniently replaced.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an extracorporeal membrane oxygenation machine. Background Art

[0002] Extracorporeal Membrane Oxygenation (ECMO) is used to replace heart and lung function to oxygenate blood and eliminate carbon dioxide to meet the needs of patients undergoing surgery. It is an important technology that uses ECMO equipment to provide life support for critically ill patients who have lost their heart and lung function. Such patients need to be quickly connected to the ECMO machine in a short period of time when the disease occurs. However, in the existing technology, many parts of ECMO equipment, such as blood pumps and oxygenators, are independent components and need to be connected through pipes when in use. On the one hand, the connecting pipes are easily damaged during use, and when blood flows through the joints, it is easy to cause blood damage. On the other hand, the priming time is long, and it is not easy to move after the connection is completed, which increases the preparation time in the early stage of treatment. In addition, the scattered components make the existing ECMO equipment have disadvantages such as scattered structure, bulky size, and low mobility, making it inconvenient for medical use. Utility Model Content

[0003] In order to solve the above technical problems, the present application provides an extracorporeal membrane oxygenation machine for reducing the patient's time on the machine.

[0004] In order to achieve the above-mentioned purpose, the embodiments of the present invention adopt the following technical solutions:

[0005] An embodiment of the present application provides an extracorporeal membrane oxygenation machine, which includes: a mobile bracket, a water tank and a main unit. The mobile bracket includes a tray and a support rod, the bottom of the tray has a plurality of universal wheels, and the support rod is connected to the tray. The water tank is detachably connected to the mobile bracket. The main unit is detachably connected to the support rod, and the main unit includes a shell, a circuit module, an oxygenation centrifugal assembly, and a display module. The shell has a storage space, and the circuit module is arranged in the storage space. The oxygenation centrifugal assembly is detachably connected to the shell, and the oxygenation centrifugal assembly includes a fixed plate, an oxygenator and a centrifugal pump. The oxygenator and the centrifugal pump are connected to the fixed plate. The display module is arranged on the shell and is electrically connected to the circuit module.

[0006] According to the extracorporeal membrane oxygenation machine of the embodiment of the present application, by detachably connecting the oxygenation centrifugal assembly to the housing and connecting the centrifugal pump, the oxygenator and the fixed plate, the difficulty of pre-filling, testing and assembly of the extracorporeal membrane oxygenation machine can be reduced, thereby saving the time for patients to use the machine and facilitating the replacement of consumables. At the same time, by providing a mobile bracket, the mobility of the extracorporeal membrane oxygenation machine can be improved, so that the extracorporeal membrane oxygenation machine can better meet usage requirements and improve emergency response capabilities.

[0007] In one possible implementation, the oxygenator and the centrifugal pump are both detachably connected to the fixing plate.

[0008] In one possible implementation, the shell has a mounting hole, one end of which is connected to the outside world and the other end is connected to the accommodating space. A first clip is provided on the fixing plate, and a second clip is provided in the accommodating space. The first clip is engaged with the second clip.

[0009] In one possible implementation manner, a handle is provided on a side of the fixing plate away from the accommodating space.

[0010] In one possible implementation, the extracorporeal membrane oxygenation machine further includes a first pipeline and a second pipeline. A water pipe interface is provided on the side wall of the shell. One end of the first pipeline is connected to the water pipe interface, and the other end is detachably connected to the water tank. One end of the second pipeline is connected to the water pipe interface, and the other end is detachably connected to the oxygenator.

[0011] In one possible implementation, the extracorporeal membrane oxygenation machine further includes an air-oxygen mixer, which is detachably disposed on the support rod and connected to the oxygenator.

[0012] In one possible implementation, the extracorporeal membrane oxygenation machine further includes a blood inlet catheter and a return catheter, the blood inlet catheter is connected to the centrifugal pump, and the return catheter is connected to the oxygenator. A first receiving member and a second receiving member are provided on the shell, the first receiving member is used to receive the blood inlet catheter, and the second receiving member is used to receive the return catheter.

[0013] In a possible implementation, one end of the blood inlet tube away from the centrifugal pump is communicated with the first three-way interface, and one end of the return tube away from the oxygenator is communicated with the second three-way interface.

[0014] In one possible implementation, the display module includes multiple displays, and the displays are electrically connected to the circuit module.

[0015] In one possible implementation, the centrifugal pump and the oxygenator are disposed on opposite sides of the fixed plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 Schematic diagram of an extracorporeal membrane oxygenation machine provided in some embodiments of the present application.

[0019] Reference numerals:

[0020] 100. Extracorporeal membrane oxygenation machine;

[0021] 1. Mobile bracket; 11. Tray; 12. Support rod; 13. Universal wheel;

[0022] 2. Water tank;

[0023] 3. Main unit; 31. Housing; 311. Mounting hole; 312. Water pipe interface; 32. Oxygenation centrifugal assembly; 321. Fixing plate; 3211. Handle; 322. Oxygenator; 323. Centrifugal pump; 33. Display module; 34. First pipeline;

[0024] 4. Air-oxygen mixer. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after connection remains unchanged. In addition, the directional terms mentioned in the embodiments of the present application, such as "inside" and "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0028] In the description of the embodiments of the present application, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In the absence of further restrictions, an element limited by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0029] See also Figure 1 , Figure 1 Schematic diagram of an extracorporeal membrane oxygenation machine provided in some embodiments of the present application. The extracorporeal membrane oxygenation machine 100 may include a mobile support 1, a water tank 2, and a main unit 3.

[0030] The mobile stand 1 may include a tray 11 and support rods 12. The bottom of the tray 11 may have multiple universal wheels 13. For example, the multiple universal wheels 13 may be spaced apart along the circumference of the tray 11. The provision of the universal wheels 13 enables the mobile stand 1 to achieve 360-degree omnidirectional movement, making the mobile stand 1 more flexible and adaptable to different usage scenarios.

[0031] The support rod 12 can be connected to the tray 11. Specifically, the fixed end of the support rod 12 is connected to the tray 11, and the tray 11 can drive the support rod 12 to move. The number of the support rod 12 can be multiple, and such a setting can ensure the supporting effect of the support rod 12.

[0032] The water tank 2 is detachably connected to the mobile bracket 1. Specifically, the water tank 2 and the mobile bracket 1 can be detachably connected by fastener connection, clamping, etc.

[0033] Therefore, the water tank 2 can be easily replaced and repaired, thereby improving the maintainability of the extracorporeal membrane oxygenation machine 100 .

[0034] The main unit 3 is detachably connected to the support rod 12 , thereby facilitating replacement and maintenance of the main unit 3 , thereby improving the maintainability of the extracorporeal membrane oxygenation machine 100 .

[0035] The host 3 may include a housing 31, a circuit module (not shown), an oxygenation centrifugal assembly 32, and a display module 33. The housing 31 may have a receiving space, and the housing 31 may protect the components in the receiving space.

[0036] The circuit module is disposed in the accommodating cavity, so that the circuit module can be protected. A power supply can be provided on the housing 31, and the power supply can be electrically connected to the circuit module.

[0037] The oxygenation centrifugal assembly 32 is detachably connected to the housing 31. This facilitates replacement of the oxygenation centrifugal assembly 32, allowing the main unit 3 to be reused, thereby reducing the manufacturing cost of the extracorporeal membrane oxygenation machine 100.

[0038] The oxygenation centrifugal assembly 32 may include a fixed plate 321 , an oxygenator 322 , and a centrifugal pump 323 .

[0039] Among them, the blood flow of ECMO is powered by a centrifugal pump 323. The centrifugal pump 323 can be composed of a blood flow chamber, a pump and a centrifugal pump motor. When blood flows through the centrifugal pump 323, the pump head rotates at high speed to form a vortex, causing a low-pressure area in the center of the pump chamber, while the side wall forms a high pressure. The kinetic energy is transferred to the blood by the viscous shear force or the high-speed rotating impeller, so that a pressure difference can be generated at the inlet and outlet of the pump, thereby promoting liquid flow. In this process, the centrifugal pump 323 converts electrical energy into mechanical energy to drive blood flow. The final blood flow rate is determined by the pressure difference of the blood in the ECMO circuit and the resistance of the blood at the outlet of the oxygenator 322. The resistance to blood flow is composed of the resistance generated by each device in the extracorporeal circulation and the patient's own vascular resistance.

[0040] The function of the oxygenator 322 is to convert non-oxygenated blood into oxygenated blood while expelling a large amount of carbon dioxide from the patient's body. In addition, it also has the functions of filtering microemboli in the blood and heating or cooling the blood.

[0041] Oxygenator 322 is connected to water tank 2. During ECMO, blood flows outside the patient's body, indirectly exchanging temperature with the room air. During transport in the operating room or other cold environments, the air temperature is relatively low, and the blood temperature also drops during circulation, which affects the efficiency of gas exchange. Water tank 2 provides water of the appropriate temperature to oxygenator 322, allowing for heat exchange with the blood.

[0042] The oxygenator 322 and the centrifugal pump 323 are both connected to the fixed plate 321. Specifically, the oxygenator 322 is connected to the fixed plate 321, and the centrifugal pump 323 is also connected to the fixed plate 321.

[0043] The display module 33 is disposed on the housing 31 and is electrically connected to the circuit module. The display module 33 can be used to display information such as flow rate, speed, and water temperature.

[0044] According to the extracorporeal membrane oxygenation machine 100 of the embodiment of the present application, by detachably connecting the oxygenation centrifugal assembly 32 to the housing 31 and connecting the centrifugal pump 323 to the oxygenator 322 and the fixing plate 321, the difficulty of pre-filling, testing, and assembling the extracorporeal membrane oxygenation machine 100 can be reduced, thereby saving time for patients to use the machine and facilitating the replacement of consumables. At the same time, by providing the mobile bracket 1, the mobility of the extracorporeal membrane oxygenation machine 100 can be improved, so that the extracorporeal membrane oxygenation machine 100 can better meet usage requirements and improve emergency response capabilities.

[0045] Please continue reading Figure 1 In some embodiments, the oxygenator 322 and the centrifugal pump 323 are both detachably connected to the fixing plate 321. Specifically, the oxygenator 322 and the centrifugal pump 323 are detachably connected to the fixing plate 321, and the centrifugal pump 323 is also detachably connected to the fixing plate 321. This facilitates replacement of the oxygenator 322 and the centrifugal pump 323, thereby reducing the operating cost of the extracorporeal membrane oxygenation machine 100.

[0046] It should be noted that only the oxygenator 322 and the fixing plate 321 may be detachably connected. Alternatively, only the centrifugal pump 323 and the fixing plate 321 may be detachably connected.

[0047] Please continue reading Figure 1 In some embodiments, the housing 31 has a mounting hole 311, one end of which communicates with the outside world and the other end with the accommodating space. A first clip is provided on the fixing plate 321, and a second clip is provided within the accommodating space. The first clip engages with the second clip. Specifically, the oxygenation centrifuge assembly 32 can be inserted into the accommodating space through the mounting hole 311. The first clip on the fixing plate 321 engages with the second clip within the accommodating space, connecting the oxygenation centrifuge assembly 32 to the housing 31. This configuration simplifies the structure and facilitates assembly of the oxygenation centrifuge system.

[0048] Illustratively, the first clamping member may be located on the side of the fixing plate 321 facing the accommodating space, and the second clamping member may be directly opposite the mounting hole 311 . This arrangement allows the fixing plate 321 to be directly connected to the housing 31 after being inserted into the mounting hole 311 .

[0049] Please continue reading Figure 1 In some embodiments, a handle 3211 is provided on one side of the fixing plate 321 away from the accommodation space. This arrangement facilitates the removal of the oxygenation centrifugal assembly 32 from the accommodation space, thereby increasing the speed of replacing the oxygenation centrifugal assembly 32.

[0050] Please continue reading Figure 1In some embodiments, the centrifugal pump 323 and the oxygenator 322 are disposed on opposite sides of the fixing plate 321. This arrangement can optimize the structural layout of the extracorporeal membrane oxygenation machine 100.

[0051] Please continue reading Figure 1 In some embodiments, the extracorporeal membrane oxygenation machine 100 may further include a first pipeline 34 and a second pipeline (not shown). A water pipe interface 312 is provided on the side wall of the housing 31. One end of the first pipeline 34 is connected to the water pipe interface 312, and the other end is detachably connected to the water tank 2. One end of the second pipeline is connected to the water pipe interface 312, and the other end is detachably connected to the oxygenator 322. This facilitates connecting the first pipeline 34 and the second pipeline to different water tanks 2 and oxygenators 322, thereby reducing assembly difficulty and allowing patients to be connected to the machine more quickly.

[0052] Please continue reading Figure 1 In some embodiments, the extracorporeal membrane oxygenator 322 further includes an air-oxygen mixer 4. The air-oxygen mixer 4 is connected to the oxygenator 322. The control of the patient's respiratory airflow is adjusted by the air-oxygen mixer 4. The functions of the air-oxygen mixer 4 are divided into oxygen concentration adjustment, gas flow adjustment, air pressure imbalance alarm and distilled water collection. In the ECMO system, oxygenation can be regulated by adjusting the oxygen concentration, and the carbon dioxide discharge efficiency can be regulated by adjusting the gas flow. The respiratory gas in ECMO (referring to the breathable gas delivered to the gas inlet of the oxygenator 322 for gas exchange) is a mixture of medical air and oxygen.

[0053] The air-oxygen mixer 4 is detachably mounted on the support rod 12. This arrangement facilitates replacement and maintenance of the air-oxygen mixer 4, thereby improving the maintainability of the extracorporeal membrane oxygenation machine 100.

[0054] Please continue reading Figure 1 In some embodiments, the extracorporeal membrane oxygenation machine 100 may also include a blood inlet catheter and a return catheter. The blood inlet catheter is connected to the centrifugal pump 323, and the return catheter is connected to the oxygenator 322. The housing 31 is provided with a first receiving member and a second receiving member. The first receiving member is used to accommodate the blood inlet catheter, and the second receiving member is used to accommodate the return catheter. This can speed up the machine installation process.

[0055] Please continue reading Figure 1 In some embodiments, the end of the blood drainage catheter away from the centrifugal pump 323 is connected to the first three-way port, and the end of the return catheter away from the oxygenator 322 is connected to the second three-way port. This facilitates venting during priming and also facilitates connection to the ECMO sheath.

[0056] Please continue reading Figure 1In some embodiments, the display module 33 includes multiple displays, which are electrically connected to the circuit module. By setting up multiple displays, the multiple displays can display different information, thereby facilitating better acquisition of real-time information about the patient.

[0057] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0058] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An extracorporeal membrane oxygenation machine, characterized in that: The extracorporeal membrane oxygenation machine comprises: A mobile bracket, comprising a tray and a support rod, wherein the bottom of the tray has a plurality of universal wheels, and the support rod is connected to the tray; a water tank, the water tank being detachably connected to the movable bracket; a host, the host being detachably connected to the support rod, the host comprising a housing, a circuit module, an oxygenation centrifugal assembly, and a display module; the housing having a storage space, the circuit module being disposed in the storage space, the oxygenation centrifugal assembly being detachably connected to the housing, the oxygenation centrifugal assembly comprising a fixing plate, an oxygenator, and a centrifugal pump, the oxygenator and the centrifugal pump being connected to the fixing plate; and the display module being disposed on the housing and electrically connected to the circuit module; The housing has a mounting hole, one end of which is in communication with the outside, and the other end of which is in communication with the accommodation space. A first clamping member is provided on the fixing plate, and a second clamping member is provided in the accommodation space. The first clamping member is engaged with the second clamping member. The centrifugal pump and the oxygenator are arranged on two opposite sides of the fixing plate.

2. The extracorporeal membrane oxygenation machine according to claim 1, characterized in that: The oxygenator and the centrifugal pump are both detachably connected to the fixing plate.

3. The extracorporeal membrane oxygenation machine according to claim 1, characterized in that: A handle is provided on one side of the fixing plate away from the accommodating space.

4. The extracorporeal membrane oxygenation machine according to claim 1, characterized in that: The extracorporeal membrane oxygenation machine also includes a first pipeline and a second pipeline. A water pipe interface is provided on the side wall of the shell. One end of the first pipeline is connected to the water pipe interface, and the other end is detachably connected to the water tank. One end of the second pipeline is connected to the water pipe interface, and the other end is detachably connected to the oxygenator.

5. The extracorporeal membrane oxygenation machine according to claim 1, characterized in that: The extracorporeal membrane oxygenation machine further includes an air-oxygen mixer, which is detachably mounted on the support rod and connected to the oxygenator.

6. The extracorporeal membrane oxygenation machine according to claim 1, characterized in that: The extracorporeal membrane oxygenation machine also includes a blood inlet catheter and a return catheter, the blood inlet catheter is connected to the centrifugal pump, and the return catheter is connected to the oxygenator. The shell is provided with a first receiving piece and a second receiving piece, the first receiving piece is used to receive the blood inlet catheter, and the second receiving piece is used to receive the return catheter.

7. The extracorporeal membrane oxygenation machine according to claim 6, characterized in that: One end of the blood drainage tube away from the centrifugal pump is communicated with a first three-way interface, and one end of the return tube away from the oxygenator is communicated with a second three-way interface.

8. The extracorporeal membrane oxygenation machine according to claim 1, characterized in that: The display module includes a plurality of displays, and the displays are electrically connected to the circuit module.

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