ECMO operation training device

Abstract

The invention provides an ECMO operation training device which comprises the components of a base which is provided with a liquid storage tank; a vein system simulation unit and an artery system simulation unit, wherein the vein system simulation unit and the artery system simulation unit are respectively arranged on the base; the puncture block is arranged on the base, the puncture block is used for simulating the tissue structure of a puncture part, and the liquid inlet end of the vein system simulation unit is communicated with the liquid outlet end of the artery system simulation unit through a blood flow channel in the puncture block; the liquid outlet end of the pulsating pump is communicated with the liquid inlet end of the artery system simulation unit; the switching module is switched between a first state and a second state; when the switching module is in a first state, the liquid inlet end of the pulsating pump is communicated with the liquid outlet end of the liquid storage tank; when the switching module is in the second state, the liquid inlet end of the pulsating pump is communicated with the liquid outlet end of the venous system simulation unit.

Description

Technical Field

[0001] This application relates to the field of surgical training devices, and more specifically, to an ECMO surgical training device. Background Technology

[0002] ECMO (extracorporeal membrane oxygenation) surgery is a key treatment method in the field of critical care medicine, but it is complex, high-risk, and requires strict skills from medical personnel. Traditional ECMO surgery training relies on animal experiments and clinical observation, but this has problems such as high cost and lack of reproducibility, resulting in poor training effectiveness. Summary of the Invention

[0003] This application provides a new technical solution for an ECMO surgical training device, which can at least solve the problem of poor training results in existing ECMO surgical procedures.

[0004] According to a first aspect of this application, an ECMO surgical training device is provided, comprising: a base, the base having a reservoir; a venous system simulation unit and an arterial system simulation unit, the venous system simulation unit and the arterial system simulation unit being respectively disposed on the base; a puncture block, the puncture block being disposed on the base, the puncture block being used to simulate the tissue structure of the puncture site, the inlet end of the venous system simulation unit and the outlet end of the arterial system simulation unit being connected through a blood flow channel within the puncture block; a pulsating pump, the outlet end of the pulsating pump being connected to the inlet end of the arterial system simulation unit; and a switching module, the switching module switching between a first state and a second state; when the switching module is in the first state, the inlet end of the pulsating pump is connected to the outlet end of the reservoir; when the switching module is in the second state, the inlet end of the pulsating pump is connected to the outlet end of the venous system simulation unit.

[0005] Optionally, the venous system simulation unit includes a first heart section and venous segments of the limbs respectively connected thereto, and the outflow tube provided in the first heart section constitutes the outflow end of the venous system simulation unit; the arterial system simulation unit includes a second heart section and arterial segments of the limbs respectively connected thereto, and the inflow tube provided in the second heart section constitutes the inflow end of the arterial system simulation unit; the ECMO surgical training device includes puncture blocks corresponding to the limbs respectively, and the blood flow channel in each puncture block connects the venous segment and arterial segment of the corresponding limb.

[0006] Optionally, the upper side of the venous system simulation unit and the arterial system simulation unit are respectively provided with controllable gas-liquid discharge pipes.

[0007] Optionally, the switching module includes: a first three-way valve and a second three-way valve, wherein the first end of the first three-way valve is connected to the first end of the second three-way valve, the second end of the first three-way valve and the second end of the second three-way valve are respectively connected to the liquid storage tank, the third end of the first three-way valve is connected to the liquid inlet of the pulse pump, and the third end of the second three-way valve is connected to the liquid outlet of the venous system simulation unit.

[0008] Optionally, the puncture block is detachably disposed on the base, and the venous system simulation unit and the arterial system simulation unit are respectively detachably connected to the puncture block.

[0009] Optionally, the blood flow channel includes a first functional section, a transition section, and a second functional section arranged sequentially; the end of the first functional section away from the transition section is connected to the outlet end of the arterial system simulation unit, and the end of the second functional section away from the transition section is connected to the inlet end of the venous system simulation unit; the flow area of ​​the transition section is smaller than the flow area of ​​the first functional section and the second functional section.

[0010] Optionally, the limb venous segment includes two lower limb venous segments, which are connected to the first heart segment via an abdominal venous segment; the limb arterial segment includes two lower limb arterial segments, which are connected to the second heart segment via an abdominal arterial segment; a height-adjustable first fixing frame is provided between the base and the abdominal venous segment, and a height-adjustable second fixing frame is provided between the base and the abdominal arterial segment.

[0011] Optionally, the first fixing frame and the second fixing frame are respectively disposed on the base. The upper end of the first fixing frame is ball-jointed to a first arc-shaped support portion adapted to the abdominal venous segment, and the upper end of the second fixing frame is ball-jointed to a second arc-shaped support portion adapted to the abdominal arterial segment.

[0012] Optionally, the first heart portion, the second heart portion, the limb venous segments, the limb arterial segments, the abdominal venous segments, and the abdominal arterial segments are all configured to be detachable and replaceable.

[0013] Optionally, the venous system simulation unit or the arterial system simulation unit is equipped with a pressure sensor, and the ECMO surgical training device further includes: a display control module, which is electrically connected to the pressure sensor and the pulsating pump; and a camera, which is detachably mounted on the base and electrically connected to the display control module.

[0014] According to the ECMO surgical training device of this application, by setting a switching module that can switch between a first state and a second state, the ECMO surgical training device can quickly switch between injection mode and simulation mode. In injection mode, simulated blood in the reservoir can be efficiently injected into the blood flow path, while in simulation mode, an independent circulation path is formed. In injection mode, the pulse pump injects simulated blood in the reservoir into the blood flow path composed of the venous system simulation unit, the puncture block, and the arterial system simulation unit, making full preparation for subsequent simulation operations. In simulation mode, the switching module isolates the reservoir from the circulation loop, avoiding interference from the reservoir to the simulated pulse, ensuring the authenticity and accuracy of the pulse at the preset puncture position on the puncture block surface, and significantly improving the realism of the surgical simulation and the training effect.

[0015] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

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

[0017] Figure 1 This is one of the structural schematic diagrams of an ECMO surgical training device according to an embodiment of this application; Figure 2 This is a second schematic diagram of the structure of an ECMO surgical training device according to an embodiment provided in this application; Figure 3 This is a third schematic diagram of the structure of an ECMO surgical training device according to an embodiment provided in this application; Figure 4 This is a fourth schematic diagram of the structure of an ECMO surgical training device according to an embodiment provided in this application; Figure 5 This is the fifth schematic diagram of the structure of an ECMO surgical training device according to an embodiment provided in this application; Figure 6 This is a schematic diagram of the structure of an ECMO surgical training device according to an embodiment of the present application; Figure 7 This is the seventh schematic diagram of the structure of an ECMO surgical training device according to an embodiment of the present application; Figure 8 This is the eighth schematic diagram of the structure of an ECMO surgical training device according to an embodiment of the present application.

[0018] Figure Labels 100. ECMO surgery training device; 10. Base; 11. Liquid storage tank; 12. First fixing frame; 121. First arc-shaped support; 13. Left box body; 14. Middle box body; 15. Snap-fit ​​post; 20. Venous system simulation unit; 21. First heart section; 22. Left upper limb venous segment; 23. Right upper limb venous segment; 24. Left lower limb venous segment; 25. Right lower limb venous segment; 26. Abdominal venous segment; 30. Arterial system simulation unit; 31. Second heart section; 32. Left upper limb arterial segment; 33. Right upper limb arterial segment; 34. Left lower limb arterial segment; 35. Right lower limb arterial segment; 36. Abdominal arterial segment; 40. Puncture block; 41. Blood flow channel; 411. First functional segment; 412. Transition segment; 413. Second functional segment; 50. Pulsating pump; 60. Switching module; 61. First three-way valve; 62. Second three-way valve; 70. Display control module; 80. Waist and hip contoured housing; 90. Controllable gas-liquid discharge pipe. Detailed Implementation

[0019] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0020] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0021] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0022] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0024] The ECMO surgical training device 100 according to an embodiment of this application will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1 to 8As shown, the ECMO surgical training device 100 according to an embodiment of this application includes: a base 10, a venous system simulation unit 20, an arterial system simulation unit 30, a puncture block 40, a pulsating pump 50, and a switching module 60.

[0026] Specifically, the base 10 is provided with a liquid storage tank 11; the venous system simulation unit 20 and the arterial system simulation unit 30 are respectively disposed on the base 10; the puncture block 40 is disposed on the base 10, and the puncture block 40 is used to simulate the tissue structure of the puncture site; the inlet end of the venous system simulation unit 20 and the outlet end of the arterial system simulation unit 30 are connected through the blood flow channel 41 in the puncture block 40; the outlet end of the pulse pump 50 is connected to the inlet end of the arterial system simulation unit 30; the switching module 60 switches between a first state and a second state; when the switching module 60 is in the first state, the inlet end of the pulse pump 50 is connected to the outlet end of the liquid storage tank 11; when the switching module 60 is in the second state, the inlet end of the pulse pump 50 is connected to the outlet end of the venous system simulation unit 20.

[0027] In other words, such as Figures 1 to 8 As shown, the ECMO surgical training device 100 according to an embodiment of this application mainly includes a base 10, a reservoir 11 for storing simulated blood, and a venous system simulation unit 20, an arterial system simulation unit 30, and a puncture block 40 on the upper side of the base 10. The puncture block 40 has a blood flow channel 41. The outlet end of the arterial system simulation unit 30 is connected to the first end of the blood flow channel 41 on the puncture block 40, and the inlet end of the venous system simulation unit 20 is connected to the second end of the blood flow channel 41 on the puncture block 40. The puncture block 40 is made of silicone, which can simulate the tissue structure of the human puncture site and improve the realism of the simulation. The ECMO surgical training device 100 also includes a pulse pump 50, the outlet end of the pulse pump 50 is connected to the inlet end of the arterial system simulation unit 30, and a switching module 60 is provided between the inlet end of the pulse pump 50, the outlet end of the venous system simulation unit 20, and the reservoir 11. The switching module 60 can switch between a first state and a second state.

[0028] When the switching module 60 is in the first state, the inlet of the pulse pump 50 is connected to the outlet of the reservoir 11. At this time, the ECMO surgical training device 100 is in the injection mode. In this state, the pulse pump 50 can inject simulated blood from the reservoir 11 into the blood flow path formed by the venous system simulation unit 20, the puncture block 40, and the arterial system simulation unit 30. After the simulated blood fills the entire blood flow path, the switching module 60 can be switched from the first state to the second state. When the switching module 60 is in the second state, the inlet of the pulse pump 50 is connected to the outlet of the reservoir 11. The outlet of the venous system simulation unit 20 is connected to the outlet of the reservoir 11, while it is disconnected from the outlet of the reservoir 11. At this time, the ECMO surgical training device 100 is in simulation mode. A simulated blood circulation pathway is formed between the pulse pump 50, the arterial system simulation unit 30, the puncture block 40 and the venous system simulation unit 20. In this state, the pulse pump 50 can drive the simulated blood to flow in the circulation pathway, and the preset puncture position on the surface of the puncture block 40 can simulate the generation of arterial pulses, so that the trainee can confirm the puncture position according to the pulse, which can ensure the authenticity of the surgical simulation.

[0029] Therefore, according to the ECMO surgical training device 100 provided in this embodiment, by setting a switching module 60 that can switch between a first state and a second state, the ECMO surgical training device 100 can quickly switch between the injection mode and the simulation mode. In the injection mode, the simulated blood in the reservoir 11 can be efficiently injected into the blood flow path, while in the simulation mode, an independent circulation path is formed. In the injection mode, the pulse pump 50 injects the simulated blood in the reservoir 11 into the blood flow path composed of the venous system simulation unit 20, the puncture block 40, and the arterial system simulation unit 30, making full preparations for subsequent simulation operations. In the simulation mode, the switching module 60 isolates the reservoir 11 from the circulation loop, avoiding interference of the reservoir 11 with the simulated pulse, ensuring the authenticity and accuracy of the pulse at the preset puncture position on the surface of the puncture block 40, and significantly improving the realism of the surgical simulation and the training effect.

[0030] In some specific embodiments of this application, the venous system simulation unit 20 includes a first heart section 21 and venous segments of the limbs respectively connected thereto, and the outflow tube provided in the first heart section 21 constitutes the outflow end of the venous system simulation unit 20; the arterial system simulation unit 30 includes a second heart section 31 and arterial segments of the limbs respectively connected thereto, and the inflow tube provided in the second heart section 31 constitutes the inflow end of the arterial system simulation unit 30; the ECMO surgical training device 100 includes puncture blocks 40 corresponding to the limbs respectively, and the blood flow channel 41 in each puncture block 40 connects the venous segment and arterial segment of the corresponding limb.

[0031] Specifically, such as Figure 4As shown, the venous system simulation unit 20 includes a first heart section 21 and venous segments of the limbs; the first heart section 21 is provided with an outlet tube communicating with it, and the end of the outlet tube away from the first heart section 21 constitutes the outlet end of the venous system simulation unit 20; the venous segments of the limbs include the left upper limb venous segment 22 (i.e., the left brachial vein segment), the right upper limb venous segment 23 (i.e., the right brachial vein segment), the left lower limb venous segment 24 (i.e., the left femoral vein segment), and the right upper limb venous segment 23 (i.e., the right femoral vein segment). The proximal ends of the left upper limb vein segment 22 and the right upper limb vein segment 23 are connected to the first heart section 21, respectively. The proximal ends of the left lower limb vein segment 24 and the right lower limb vein segment 25 are connected to the first heart section 21 through the abdominal vein segment 26. The distal ends of the left upper limb vein segment 22, the right upper limb vein segment 23, the left lower limb vein segment 24, and the right lower limb vein segment 25 constitute the four inlet ends of the venous system simulation unit 20.

[0032] like Figure 3 As shown, the arterial system simulation unit 30 includes a second heart section 31 and arterial segments of the limbs; the second heart section 31 is provided with an inlet pipe communicating with it, and the end of the inlet pipe away from the second heart section 31 constitutes the inlet end of the arterial system simulation unit 30; the arterial segments of the limbs include the left upper limb arterial segment 32 (i.e., the left brachial artery segment), the right upper limb arterial segment 33 (i.e., the right brachial artery segment), the left lower limb arterial segment 34 (i.e., the left femoral artery segment), and the right upper limb arterial segment 33 (i.e., the right femoral artery segment). The proximal ends of the left upper limb artery segment 32 and the right upper limb artery segment 33 are connected to the second heart section 31. The proximal ends of the left lower limb artery segment 34 and the right lower limb artery segment 35 are connected to the second heart section 31 through the abdominal artery segment 36. The distal ends of the left upper limb artery segment 32, the right upper limb artery segment 33, the left lower limb artery segment 34, and the right lower limb artery segment 35 constitute the four fluid outlets of the arterial system simulation unit 30.

[0033] like Figure 1 and Figure 2 As shown, the ECMO surgical training device 100 includes four puncture blocks 40 corresponding to the venous and arterial segments of the limbs. Specifically, the distal end of the left upper limb venous segment 22 is connected to the distal end of the left upper limb arterial segment 32 through a blood flow channel 41 within the left upper limb puncture block; the distal end of the right upper limb venous segment 23 is connected to the distal end of the right upper limb arterial segment 33 through a blood flow channel 41 within the right upper limb puncture block; the distal end of the left lower limb venous segment 24 is connected to the distal end of the left lower limb arterial segment 34 through a blood flow channel 41 within the left lower limb puncture block; and the distal end of the right lower limb venous segment 25 is connected to the distal end of the right lower limb arterial segment 35 through a blood flow channel 41 within the right lower limb puncture block.

[0034] In this embodiment, the four puncture blocks 40 can provide different puncture sites, which can meet the needs of establishing vascular access in multiple sites during ECMO surgery and improve the comprehensiveness of surgical simulation.

[0035] According to some embodiments of this application, when the switching module 60 is in the first state, the liquid outlet of the venous system simulation unit 20 is connected to the liquid storage tank 11; when the switching module 60 is in the second state, the liquid outlet of the venous system simulation unit 20 is disconnected from the liquid storage tank 11.

[0036] In other words, when the switching module 60 is in the first state, the inlet of the pulse pump 50 is connected to the outlet of the reservoir 11, and the outlet of the venous system simulation unit 20 is also connected to the reservoir 11 to form a pressure balance circuit, eliminating the need for additional ventilation structures during injection. When the switching module 60 switches to the second state, the inlet of the pulse pump 50 is connected to the outlet of the venous system simulation unit 20 and disconnected from the reservoir 11, allowing the pulse pump 50, arterial system simulation unit 30, puncture block 40, and venous system simulation unit 20 to form an independent simulated blood circulation pathway. For example, as... Figure 5 and Figure 6 As shown, the switching module 60 is configured as a composite valve module, which includes a first three-way valve 61 and a second three-way valve 62. The first end of the first three-way valve 61 is connected to the first end of the second three-way valve 62. The second ends of the first three-way valve 61 and the second end of the second three-way valve 62 are respectively connected to the storage tank 11. The third end of the first three-way valve 61 is connected to the inlet end of the pulse pump 50, and the third end of the second three-way valve 62 is connected to the outlet end of the venous system simulation unit 20. When the second end of the first three-way valve 61 is connected to the third end, and the second end of the second three-way valve 62 is connected to the third end, the switching module 60 is in a first state; when the first end of the first three-way valve 61 is connected to the third end, and the first end of the second three-way valve 62 is connected to the third end, the switching module 60 is in a second state.

[0037] According to one embodiment of this application, the puncture block 40 is detachably disposed on the base 10, and the venous system simulation unit 20 and the arterial system simulation unit 30 are respectively detachably connected to the puncture block 40.

[0038] The upper side of the base 10 is provided with a left box 13, a middle box 14, and a right box. The left upper limb puncture block is located on the upper side of the left box 13, the right upper limb puncture block is located on the upper side of the right box, and the left and right lower limb puncture blocks are both located on the upper side of the middle box 14. Specifically, the left and right upper limb puncture blocks are located on the right box, and the lower sides of the left and right lower limb puncture blocks are respectively provided with snap-fit ​​holes. The upper sides of the left box 13, the middle box 14, and the right box are respectively provided with snap-fit ​​posts 15 that match the snap-fit ​​holes on the corresponding puncture blocks 40. The puncture blocks 40 can be detachably connected to the base 10 by engaging the snap-fit ​​holes and snap-fit ​​posts 15. The puncture block 40 has connecting tubes fixedly connected to both ends of its blood flow channel 41. The distal ends of the left upper limb vein segment 22, the right upper limb vein segment 23, the left lower limb vein segment 24 and the right lower limb vein segment 25, as well as the distal ends of the left upper limb artery segment 32, the right upper limb artery segment 33, the left lower limb artery segment 34 and the right lower limb artery segment 35 are respectively connected to the corresponding tubes.

[0039] In this embodiment, after the puncture block 40 has been used once or multiple times, it can be removed and replaced. This can effectively extend the service life of the ECMO surgical training device 100 and ensure that each training session is conducted in the best condition, thereby effectively improving the quality and effectiveness of the training.

[0040] In some specific embodiments of this application, the blood flow channel 41 includes a first functional segment 411, a transition segment 412, and a second functional segment 413 arranged sequentially; the end of the first functional segment 411 away from the transition segment 412 is connected to the outlet end of the arterial system simulation unit 30, and the end of the second functional segment 413 away from the transition segment 412 is connected to the inlet end of the venous system simulation unit 20; the flow area of ​​the transition segment 412 is smaller than the flow areas of the first functional segment 411 and the second functional segment 413.

[0041] In other words, such as Figure 7As shown, the blood flow channel 41 consists of a first functional segment 411, a transition segment 412, and a second functional segment 413. The first functional segment 411 and the second functional segment 413 are arranged in parallel. The transition segment 412 is formed as an arc-shaped structure located between the first functional segment 411 and the second functional segment 413. The first functional segment 411 is an arterial segment, with its end furthest from the transition segment 412 connected to the outlet end of the arterial system simulation unit 30. The second functional segment 413 is a venous segment, with its end furthest from the transition segment 412 connected to the inlet end of the venous system simulation unit 20. The transition segment 412 has a small flow area. For the flow areas of the first functional segment 411 and the second functional segment 413, for example, when their cross-sections are both circular, the diameter of the transition segment 412 is smaller than the diameters of the first functional segment 411 and the second functional segment 413. This allows the transition segment 412 to simulate the capillary segment between the venous segment and the arterial segment. Under the action of the transition segment 412, the location of the first functional segment 411 can exhibit pulse fluctuations similar to those of a real artery, while the location of the second functional segment 413 does not exhibit such pulse fluctuations. This provides a highly realistic physiological simulation environment for ECMO surgery training, thereby improving the training effect.

[0042] In some examples of this application, the puncture block 40 is transparent or semi-transparent, and the simulated blood is red, so that operators can observe the specific location of the vascular segment inside the puncture block 40 during ECMO surgery training, thereby improving the effectiveness of ECMO surgery training.

[0043] According to one embodiment of this application, the limb venous segment includes two lower limb venous segments, which are connected to the first heart portion 21 via an abdominal venous segment 26; the limb arterial segment includes two lower limb arterial segments, which are connected to the second heart portion 31 via an abdominal arterial segment 36; a height-adjustable first fixing frame 12 is provided between the base 10 and the abdominal venous segment 26, and a height-adjustable second fixing frame is provided between the base 10 and the abdominal arterial segment 36.

[0044] Specifically, the venous system simulation unit 20 includes a first heart section 21, an abdominal venous segment 26, a left lower limb venous segment 24, and a right lower limb venous segment 25. The first heart section 21 is connected to the proximal end of the abdominal venous segment 26. The proximal ends of the left lower limb venous segment 24 and the right lower limb venous segment 25 converge to form a venous confluence. The venous confluence is connected to the distal end of the abdominal venous segment 26. A height-adjustable first fixing frame 12 is provided between the base 10 and the abdominal venous segment 26. For example, an existing telescopic support rod or similar structure can be used. The arterial system simulation unit 30 includes a second heart section 31, an abdominal artery segment 36, a left lower limb artery segment 34, and a right lower limb artery segment 35. The second heart section 31 is connected to the proximal end of the abdominal artery segment 36. The proximal ends of the left lower limb artery segment 34 and the right lower limb artery segment 35 converge to form an arterial confluence. The arterial confluence is connected to the distal end of the abdominal artery segment 36. A height-adjustable second fixing frame is provided between the base 10 and the abdominal artery segment 36, such as an existing telescopic support rod structure.

[0045] In this embodiment, the height of the venous system simulation unit 20 at the corresponding position can be adjusted by the first fixing frame 12, and the height of the arterial system simulation unit 30 at the corresponding position can be adjusted by the second fixing frame, thereby facilitating the simulation of the positions of the venous system simulation unit 20 and the arterial system simulation unit 30 under different body positions, which can effectively improve the realism of surgical simulation and training effect.

[0046] In some optional examples of this application, a third fixing frame is provided between the second heart part 31 and the base 10. The lower end of the third fixing frame is fixed to the base 10, and the upper end of the third fixing frame supports the second heart part 31. The second heart part 31 supports the first heart part 21.

[0047] In some specific embodiments of this application, the first fixing frame 12 and the second fixing frame are respectively disposed on the base 10. The upper end of the first fixing frame 12 is ball-jointed to a first arc-shaped support portion 121 adapted to the abdominal vein segment 26, and the upper end of the second fixing frame is ball-jointed to a second arc-shaped support portion adapted to the abdominal artery segment 36.

[0048] Specifically, such as Figure 8As shown, the lower ends of the first fixing frame 12 and the second fixing frame are both fixedly connected to the upper side of the middle box 14. The upper end of the first fixing frame 12 is ball-jointed to a first arc-shaped support 121, and the upper end of the second fixing frame is ball-jointed to a second arc-shaped support. The first arc-shaped support 121 can support the abdominal venous segment 26, and the second arc-shaped support can support the abdominal arterial segment 36. By adjusting the height of the first fixing frame 12 and the angle of the first arc-shaped support 121, abdominal venous segments 26 of different heights and shapes can be supported. Moreover, during the catheter placement process, it can ensure that the venous system simulation unit 20 and the arterial system simulation unit 30 do not undergo large displacement, thereby effectively ensuring the authenticity, stability, and repeatability of the catheter placement operation.

[0049] In some optional examples of this application, the upper side of the venous system simulation unit 20 and the arterial system simulation unit 30 is provided with a controllable gas-liquid discharge pipe 90.

[0050] Specifically, such as Figures 1 to 4 As shown, branch pipes communicating with the corresponding segments are respectively provided on the upper sides of the left upper limb venous segment 22, left upper limb arterial segment 32, right upper limb venous segment 23, right upper limb arterial segment 33, abdominal venous segment 26, and abdominal arterial segment 36. Each branch pipe is equipped with a control valve, which can control the opening and closing of the branch pipe, thus forming a controllable gas-liquid discharge pipe 90. When injecting fluid into the venous system simulation unit 20 and the arterial system simulation unit 30, the controllable gas-liquid discharge pipe 90 can be opened. At this time, the gas in the blood flow path can be smoothly discharged through the controllable gas-liquid discharge pipe 90, thereby ensuring that the simulated blood can fully fill the entire blood flow path, thus ensuring the realism of the simulation.

[0051] According to one embodiment of this application, the first heart portion 21, the second heart portion 31, the limb venous segments, the limb arterial segments, the abdominal venous segment 26, and the abdominal arterial segment 36 are all configured to be removable and replaceable.

[0052] In other words, the first heart section 21, the second heart section 31, the limb vein segments, the limb artery segments, the abdominal vein segment 26, and the abdominal artery segment 36 can all be detached independently. For example, rigid connecting tubes are provided between the first heart section 21 and the upper limb vein segment, between the first heart section 21 and the abdominal vein segment 26, between the second heart section 31 and the upper limb artery segment, between the second heart section 31 and the abdominal artery segment 36, between the abdominal vein segment 26 and the venous confluence, and between the abdominal artery segment 36 and the arterial confluence. Each component can be detachably connected by fitting it onto the end of the corresponding rigid connecting tube.

[0053] In this embodiment, the first heart section 21, the second heart section 31, the limb vein segment, the limb artery segment, the abdominal vein segment 26, and the abdominal artery segment 36 can all be replaced as needed to provide specialized training and practice for different patients' blood vessels and different lesion areas.

[0054] like Figure 1 As shown, in some optional examples of this application, the ECMO surgical training device also includes a hip and waist profiling shell 80, which is located on the upper side of the base 10. At least a portion of the abdominal venous segment 26 and the abdominal arterial segment 36, as well as the lower limb venous segment and the lower limb arterial segment are located inside the hip and waist profiling shell 80, and the upper surface of the lower limb puncture block 40 is located outside the hip and waist profiling shell 80.

[0055] The lower sides of the waist and hip contour shell 80, the left box, the middle box and the right box are all fixedly connected with pins, and the upper side of the base 10 is provided with corresponding insertion holes. By cooperating with the pins and insertion holes, the waist and hip contour shell 80, the left box 13, the middle box 14 and the right box can be detachably mounted on the base 10.

[0056] In some specific embodiments of this application, the venous system simulation unit 20 or the arterial system simulation unit 30 is provided with a pressure sensor, and the ECMO surgical training device 100 further includes: a display control module 70, which is electrically connected to the pressure sensor and the pulse pump 50; and a camera, which is detachably mounted on the base 10 and electrically connected to the display control module 70.

[0057] Specifically, the abdominal vein segment 26, the left lower limb vein segment 24, or the right upper limb vein segment 23 of the venous system simulation unit 20 are provided with a first branch segment, and the branch segment is equipped with a pressure sensor; or, the abdominal arterial segment 36, the left lower limb arterial segment 34, or the right upper limb arterial segment 33 of the arterial system simulation unit 30 are provided with a second branch segment, and the second branch segment is equipped with a pressure sensor; the pressure sensor can detect the blood pressure in the blood flow path, thereby facilitating the adjustment of the pressure to the physiological range to simulate the real blood flow environment, which can ensure the realism of the surgical simulation and the training effect.

[0058] like Figure 1As shown, the ECMO surgery training device 100 also includes a display control module 70. The display control module 70 can use existing display control equipment. The pressure sensor and the pulse pump 50 are electrically connected to the display control module 70. The display control module 70 can display the flow rate and blood pressure parameters of the pulse pump 50. Moreover, through the intuitive operation interface provided by the display control module 70, the operator can easily adjust the flow rate and pressure of the pulse pump 50 and accurately adjust them to the preset simulation values, which greatly improves the ease of operation and accuracy during the training process, and provides an efficient and reliable simulation operation environment for ECMO surgery training.

[0059] The ECMO surgical training device 100 is also equipped with multiple cameras, which can be detachably mounted on the base 10, for example, by plugging into the base 10. These cameras can capture the trainee's operational actions from different angles. The captured operational image data will be properly stored, and after the training, trainees can conduct in-depth operational analysis based on this image data, thereby providing precise and effective guidance for subsequent training.

[0060] When using the ECMO surgery training device 100 according to the embodiments of this application, simulated blood is first added to the reservoir 11. Then, the switching module 60 is switched to the first state, and the controllable gas-liquid discharge pipe 90 is opened. Next, the pulse pump 50 is controlled to work, so that the pulse pump 50 draws simulated blood from the reservoir 11. During the drawing process, the gas in the venous system simulation unit 20 and the arterial system simulation unit 30 is discharged from the gas-liquid discharge pipe to ensure that the simulated blood can fill the venous system simulation unit 20 and the arterial system simulation unit 30. After the venous system simulation unit 20 and the arterial system simulation unit 30 are filled, the controllable gas-liquid discharge pipe 90 is closed, and the switching module 60 is switched to the second state. Then, the flow rate and pressure of the pulse pump 50 are adjusted so that the blood flow rate and blood pressure parameters reach the preset simulated values. Then, the trainee can perform puncture training and other operations based on the pulse and ultrasound imaging information on the puncture block 40, thereby completing the ECMO surgery training.

[0061] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. An ECMO surgical training device, characterized in that, include: The base (10) is provided with a liquid storage tank (11); The venous system simulation unit (20) and the arterial system simulation unit (30) are respectively disposed on the base (10). A puncture block (40) is provided on the base (10). The puncture block (40) is used to simulate the tissue structure of the puncture site. The inlet end of the venous system simulation unit (20) and the outlet end of the arterial system simulation unit (30) are connected through the blood flow channel (41) in the puncture block (40). A pulsating pump (50) is connected to the inlet of the arterial system simulation unit (30) via its outlet end. A switching module (60) switches between a first state and a second state; When the switching module (60) is in the first state, the inlet end of the pulsating pump (50) is connected to the outlet end of the storage tank (11); when the switching module (60) is in the second state, the inlet end of the pulsating pump (50) is connected to the outlet end of the venous system simulation unit (20).

2. The ECMO surgical training device according to claim 1, characterized in that, The venous system simulation unit (20) includes a first heart section (21) and venous segments of the limbs respectively connected thereto. The fluid outlet tube provided in the first heart section (21) constitutes the fluid outlet of the venous system simulation unit (20). The arterial system simulation unit (30) includes a second heart section (31) and arterial segments of the limbs respectively connected thereto. The inlet pipe provided in the second heart section (31) constitutes the inlet end of the arterial system simulation unit (30). The ECMO surgical training device includes puncture blocks (40) corresponding to the four limbs respectively, and blood flow channels (41) in each puncture block (40) connect the venous segment and arterial segment of the corresponding limb.

3. The ECMO surgical training device according to claim 1, characterized in that, The upper side of the venous system simulation unit (20) and the arterial system simulation unit (30) are respectively provided with controllable gas-liquid discharge pipes (90).

4. The ECMO surgical training device according to claim 1, characterized in that, The switching module (60) includes: The first three-way valve (61) and the second three-way valve (62) are connected. The first end of the first three-way valve (61) is connected to the first end of the second three-way valve (62). The second end of the first three-way valve (61) and the second end of the second three-way valve (62) are connected to the liquid storage tank (11) respectively. The third end of the first three-way valve (61) is connected to the liquid inlet of the pulse pump (50). The third end of the second three-way valve (62) is connected to the liquid outlet of the venous system simulation unit (20).

5. The ECMO surgical training device according to claim 1, characterized in that, The puncture block (40) is detachably disposed on the base (10), and the venous system simulation unit (20) and the arterial system simulation unit (30) are detachably connected to the puncture block (40) respectively.

6. The ECMO surgical training device according to claim 1, characterized in that, The blood flow channel (41) includes a first functional segment (411), a transition segment (412), and a second functional segment (413) arranged sequentially. The end of the first functional segment (411) away from the transition segment (412) is connected to the outlet end of the arterial system simulation unit (30), and the end of the second functional segment (413) away from the transition segment (412) is connected to the inlet end of the venous system simulation unit (20). The flow area of ​​the transition segment (412) is smaller than the flow area of ​​the first functional segment (411) and the second functional segment (413).

7. The ECMO surgical training device according to claim 2, characterized in that, The limb vein segments include two lower limb vein segments, which are connected to the first heart section (21) via an abdominal vein segment (26); The limb arterial segment includes two lower limb arterial segments, which are connected to the second heart part (31) via an abdominal arterial segment (36); A height-adjustable first fixing frame (12) is provided between the base (10) and the abdominal vein segment (26), and a height-adjustable second fixing frame is provided between the base (10) and the abdominal artery segment (36).

8. The ECMO surgical training device according to claim 7, characterized in that, The first fixing frame (12) and the second fixing frame are respectively disposed on the base (10). The upper end of the first fixing frame (12) is connected to a first arc-shaped support part (121) adapted to the abdominal vein segment (26) by a ball joint. The upper end of the second fixing frame is connected to a second arc-shaped support part adapted to the abdominal artery segment (36) by a ball joint.

9. The ECMO surgical training device according to claim 7, characterized in that, The first heart section (21), the second heart section (31), the limb vein segments, the limb artery segments, the abdominal vein segment (26), and the abdominal artery segment (36) are all configured to be removable and replaceable.

10. The ECMO surgical training device according to claim 1, characterized in that, The venous system simulation unit (20) or the arterial system simulation unit (30) is equipped with a pressure sensor, and the ECMO surgical training device further includes: Display control module (70), which is electrically connected to the pressure sensor and the pulsating pump (50); The camera is detachably mounted on the base (10) and is electrically connected to the display control module (70).

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