ECMO puncture bypass training model capable of ultrasonic quality control

Abstract

The technical scheme relates to the technical field of medical education equipment, in particular to an ECMO puncture bypass training model capable of ultrasonic quality control, which comprises a simulation model main body provided with a plurality of mounting positions; the skin-like blocks are mounted in the corresponding mounting positions, and channels are formed in the skin-like blocks; the in-vivo circulation device is mounted in the mounting cavity, and an artificial blood vessel of the in-vivo circulation device is arranged in the corresponding channel; the simulation model body is provided with a fixing groove formed in the middle of an inner cavity of a lower model body and used for fixing a water tank of the internal circulation device. The model upper main body is used for shielding the opening; and the inner cavity of the lower model main body is communicated with each mounting position, so that the artificial blood vessel enters the channel from the inner cavity. According to the utility model, the installation cavity is arranged in the simulation model main body to accommodate the internal circulation device, and meanwhile, the skin-like block is used for fixing the artificial blood vessel for teaching, so that the problems that an existing model is large in size and inconvenient to carry and cannot be used for ultrasonic quality control teaching are solved.

Description

Technical Field

[0001] This technical solution relates to the technical field of medical education equipment, and in particular to an ECMO puncture and diversion training model capable of ultrasound quality control. Background Art

[0002] ECMO, short for extracorporeal membrane oxygenation, is a complex treatment for critical care in clinical medicine. It is one of the most cutting-edge and challenging technologies and a leading provider of cardiopulmonary support therapies. For severe heart and lung diseases, when lung function is severely impaired, ECMO can take on the task of gas exchange, allowing the lungs to rest. When heart function is severely impaired, a blood pump can simulate the heart's pumping function to maintain blood circulation. ECMO is an advanced life support technology and an effective treatment for severe heart and lung diseases.

[0003] In recent years, the world medical community has been committed to promoting the application of ECMO as a life support treatment method for critically ill patients in China, bringing hope for the rescue of critically ill patients. The medical and health authorities stipulate that ECMO treatment and nursing personnel must undergo rigorous and extensive skills training. Due to the lack of well-trained specialized technical personnel and unskilled skills, the first aid effect of ECMO will inevitably be affected, and even medical accidents may occur. For example, Chinese patent 202111594139.X discloses an ECMO skill training simulation teaching system. The simulated human body model disclosed in the patent uses an external pump box, and the pump body and other components are placed in the pump box, which makes the overall volume very large and inconvenient to carry.

[0004] Existing simulation models generally only support routine femoral artery and internal jugular vein punctures. However, clinically, puncture and connection of side branch lines are required, but no existing simulation model can perform this function. Furthermore, in real-world clinical practice, with advancements in safety technology, ultrasound is often used to explore the inferior vena cava and abdominal aorta to ensure intravascular placement of the line / guidewire, a function currently unavailable in existing models. Summary of the Invention

[0005] The purpose of this technical solution is to provide an ECMO puncture and diversion training model that can be ultrasonically controlled. By opening an installation cavity in the simulation model body to accommodate the internal circulation device, and using skin-like blocks to fix artificial blood vessels for teaching, it can solve the problems of existing models being large in size, inconvenient to carry, and unable to perform ultrasonic quality control teaching.

[0006] The purpose of this technical solution is achieved in this way:

[0007] An ECMO puncture and diversion training model with ultrasound quality control, including:

[0008] The simulation model body is provided with a plurality of mounting positions;

[0009] A plurality of skin-like blocks are installed in the corresponding installation positions, and a channel is opened on the skin-like blocks;

[0010] An intracorporeal circulation device is installed in the installation cavity, and an artificial blood vessel of the intracorporeal circulation device is placed in the corresponding channel;

[0011] Wherein, the simulation model main body has:

[0012] The lower body of the model is hollow and open at the top, and a fixing groove is provided in the middle of the inner cavity of the lower body of the model for fixing the water tank of the in-vivo circulation device;

[0013] The upper model body has a cover provided on the lower model body for covering the opening;

[0014] The inner cavity of the lower body of the model and each installation position are connected to each other, so that the artificial blood vessel can enter the channel from the inner cavity.

[0015] Preferably, the in vivo circulation device has:

[0016] a water tank fixed in the fixing groove;

[0017] a circulation pump, which is placed in the inner cavity of the lower body of the model and connected to the liquid outlet of the water tank through an artificial blood vessel;

[0018] a battery, which is placed in the inner cavity of the lower body of the model and connected to the circulation pump via a wire;

[0019] A plurality of artificial blood vessels, parts of which are placed in the channels of the corresponding skin-like blocks, and the artificial blood vessels are respectively connected to the liquid outlet of the circulation pump and the liquid return port of the water tank;

[0020] The liquid inlet of the circulation pump and the liquid outlet of the water tank are connected through a pipeline;

[0021] Powered by the battery, the circulation pump can extract the liquid from the water tank and then transport it back to the water tank through the artificial blood vessel.

[0022] Preferably, the peptoid block has:

[0023] The upper skin-like block is provided with a groove;

[0024] The lower skin-like block has two grooves formed thereon;

[0025] When the upper skin-like block and the lower skin-like block are docked with each other, the groove 1 and the groove 2 form the channel.

[0026] Preferably, a plurality of mutually staggered ribs are provided at the bottom of the fixing groove, and the upper end surfaces of the ribs are flush.

[0027] Preferably, the upper end surface of the water tank is recessed with a mounting groove, the sidewall of the mounting groove penetrates the vertical sidewall of the water tank, and a through-hole is provided on the opposite surface to conduct to the interior of the water tank, the skin-like block is installed in the mounting groove, and the channel of the skin-like block corresponds to the through-hole;

[0028] The intracorporeal circulation device comprises an abdominal aorta and an inferior vena cava, and both the abdominal aorta and the inferior vena cava are located in a skin-like block in a mounting groove, and is used for teaching ultrasound detection of large blood vessels.

[0029] Preferably, the lower end surface of the lower body of the model is formed with a plurality of placement planes for stable placement.

[0030] Preferably, a drain pipe is provided at the bottom of the fixed groove, and a drain outlet is provided at the bottom of the water tank. When the water tank is installed in the fixed groove, the edge of the drain outlet abuts against the upper end face of the drain pipe, and a valve is installed on the drain pipe to control the conduction or closing of the drain pipe.

[0031] Preferably, the peptoid blocks are divided into at least:

[0032] A neck skin block, which is installed in the installation position of the neck of the simulation model body;

[0033] An abdominal skin-like block, which is installed in the installation position of the abdomen of the simulation model body;

[0034] Two leg skin-like blocks, which are installed in the installation positions of the legs of the simulation model body;

[0035] Through skin-like blocks in different positions, teaching of different parts can be achieved.

[0036] Preferably, a superficial femoral artery channel is opened in one of the leg skin-like blocks, and a side branch artificial blood vessel is also connected to the artificial blood vessel through a three-way connector. The side branch artificial blood vessel is partially placed in the superficial femoral artery channel for teaching the establishment of ECMO side branches.

[0037] Compared with the existing technology, this technical solution has the following outstanding and beneficial technical effects:

[0038] 1. This technical solution is designed to accommodate the in vivo circulation device by opening an installation cavity in the main body of the simulation model, and at the same time use skin-like blocks to fix the artificial blood vessels. The skin-like blocks can not only fix the artificial blood vessels, but also completely wrap the artificial blood vessels, thereby realizing the teaching of ultrasonic quality control.

[0039] 2. This technical solution opens a superficial femoral artery channel in one of the leg skin-like blocks. By setting up a side branch artificial blood vessel and placing it in the superficial femoral artery channel, it can achieve the teaching of establishing ECMO side branches. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0041] Figure 2 It is a schematic diagram of the back structure of the utility model.

[0042] Figure 3 for Figure 2 Schematic diagram of the structure in the BB direction.

[0043] Figure 4 This is a structural diagram of the hidden model of the utility model.

[0044] Figure 5 This is a schematic diagram of the main structure of the model below of the present utility model.

[0045] Figure 6 This is a schematic diagram of the structure of the model lower body of the present invention after the water tank is installed.

[0046] Figure 7 This is a schematic diagram of the blood vessel layout structure of the present invention.

[0047] Figure numerals: 1. simulation model body; 2. mounting position; 3. skin-like block; 4. channel; 5. in vivo circulation device; 6. model lower body; 7. fixing groove; 8. model upper body; 9. water tank; 10. circulation pump; 11. battery; 12. upper skin-like block; 13. groove one; 14. lower skin-like block; 15. groove two; 16. convex rib; 17. mounting groove; 18. perforation; 19. placement plane; 20. drainage pipe; 21. drainage outlet; 22. superficial femoral artery channel; 23. collateral artificial blood vessel; 24. right femoral artery of the neck; 25. left femoral vein of the neck; 26. abdominal aorta; 27. inferior vena cava; 28. right femoral artery of the leg; 29. right femoral vein of the leg; 30. superficial femoral artery; 31. left femoral artery of the leg; 32. left femoral vein of the leg; 33. three-way connector. DETAILED DESCRIPTION

[0048] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings.

[0049] Currently, ECMO puncture simulators are only capable of routine femoral artery and internal jugular vein puncture. However, clinical practice requires the puncture and connection of side branch lines, a function currently unavailable in simulators. Furthermore, in real-world clinical practice, with advancements in safety technology, ultrasound is often used to explore the inferior vena cava and abdominal aorta to ensure intravascular placement of the line and guidewire. Currently, no simulators fully support this function.

[0050] Based on this, the following new model was designed, and the specific plan is as follows:

[0051] like Figure 1-7 As shown, an ECMO puncture and diversion training model with ultrasound quality control includes: a simulation model body 1, a skin-like block 3 and an in-vivo circulation device 5, wherein the in-vivo circulation device 5 includes a circulation pump 10, a water tank 9, a battery 11 and a plurality of artificial blood vessels;

[0052] The simulation model body 1 is mainly designed to imitate the shape of the human body. At the same time, a mounting cavity is opened inside it, and the mounting cavity is located in the middle. The model body is also provided with several mounting positions 2, which are located at the neck, abdomen and legs respectively.

[0053] In this embodiment, there are multiple skin-like blocks 3, specifically four, which are respectively installed in the corresponding installation positions 2, and a channel 4 is opened on the skin-like block 3;

[0054] An intracorporeal circulation device 5 is mainly installed in the installation cavity, and an artificial blood vessel of the intracorporeal circulation device 5 is placed in the corresponding channel 4;

[0055] The main structure of the simulation model body 1 includes: a model lower body 6 and a model upper body 8;

[0056] The lower body 6 of the model is hollow inside and open on the top. A fixing groove 7 is provided in the middle of the inner cavity of the lower body 6 of the model. The water tank 9 is fixed in the fixing groove 7. The battery 11 and the circulating pump 10 are both placed in the inner cavity of the lower body 6 of the model and are electrically connected by wires. The artificial blood vessels are respectively connected to the liquid outlet of the circulating pump 10 and the liquid return port of the water tank 9. The liquid inlet of the circulating pump 10 and the liquid outlet of the water tank 9 are connected by pipelines. At the same time, some artificial blood vessels are respectively placed in the channels 4 of the corresponding skin-like blocks 3;

[0057] No battery is required and the device can be connected directly to a socket using a plug.

[0058] The upper model body 8 is covered on the lower model body 6 to cover the opening;

[0059] During use, the circulation pump 10 works to transport the liquid in the water tank 9 into the artificial blood vessel, and then flows through the corresponding skin-like block 3 and then flows back into the water tank 9 through the artificial blood vessel.

[0060] The artificial blood vessel placed in the channel 4 is tightly wrapped by the skin-like block 3, and the position of the channel 4 is also designed according to the human body layout.

[0061] This ensures the quality of puncture instruction during teaching and ensures accuracy during subsequent patient procedures. The artificial blood vessel is tightly wrapped in the skin-like block 3, allowing the large abdominal blood vessels (abdominal aorta 27 and inferior vena cava 26) to meet ultrasound quality control / ultrasound exploration requirements (because ultrasound cannot penetrate air, but other materials can). Ultrasound quality control can also be called ultrasound exploration.

[0062] None of the existing models have the function of teaching ultrasound exploration.

[0063] At the same time, the skin-like block 3 has a high ultrasonic transmittance, which can better ensure the teaching effect.

[0064] The artificial blood vessel can be made of a rubber tube, and the pipeline can be made of a rubber tube or other tubes.

[0065] This technical solution is designed to accommodate the in vivo circulation device 5 by opening an installation cavity in the simulation model body 1, and at the same time use a skin-like block 3 to fix the artificial blood vessel. The skin-like block 3 not only fixes the artificial blood vessel, but also completely wraps the artificial blood vessel, thereby realizing the teaching of ultrasonic quality control.

[0066] The skin-like block 3 is the puncturable site, and during teaching, ultrasound exploration, puncture or other designs can be performed at the skin-like block 3.

[0067] The above-mentioned skin-like blocks 3 can be divided into at least: a neck skin-like block, an abdomen skin-like block and two leg skin-like blocks, which are respectively installed in the corresponding installation positions 2. Other skin-like blocks can also be set according to actual needs, which will not be described in detail in this embodiment.

[0068] By using skin-like blocks 3 at different positions, teaching of different parts can be achieved.

[0069] At the same time, in order to make the model teaching closer to clinical practice and better meet clinical needs, a superficial femoral artery channel 22 is opened in one of the leg skin-like blocks. In this embodiment, the skin-like block on the right leg is used as an example for explanation, and it can also be set on the left leg.

[0070] A side branch artificial blood vessel 23 is installed in the superficial femoral artery channel 22, and a three-way connector 33 is installed on the artificial blood vessel. The three-way connector 33 is used to realize the installation of the side branch artificial blood vessel 23 on the main artificial blood vessel.

[0071] This allows the model to have the teaching function of establishing ECMO side branches.

[0072] Further explanation, the skin-like block 3 has two parts: an upper skin-like block 12 and a lower skin-like block 14;

[0073] The upper skin-like block 12 and the lower skin-like block 14 are aligned and abutted with each other at the upper and lower end surfaces, and grooves are provided on the end surfaces that are connected to each other. Specifically, a groove 13 is provided on the upper skin-like block 12, and a groove 2 15 is provided on the lower skin-like block 14. When the upper skin-like block 12 and the lower skin-like block 14 are connected to each other, the groove 13 and the groove 2 15 constitute the channel 4.

[0074] This design not only facilitates the installation of the skin-like block 3, but also facilitates the replacement and adjustment of the artificial blood vessel in the channel 4, and ensures accurate installation, which facilitates subsequent accurate use.

[0075] Further explanation, a plurality of mutually staggered ribs 16 are provided at the bottom of the fixing groove 7, and the upper end surfaces of the ribs 16 are flush, so that after the water tank 9 is installed in the fixing groove 7, the fixation can be smooth and stable, and the ribs 16 increase the supporting force to avoid serious deformation problems.

[0076] At the same time, a mounting groove 17 is recessed in the upper end surface of the water tank 9. The side wall of the mounting groove 17 penetrates the vertical side wall of the water tank 9, and a through hole 18 is opened on the opposite side to conduct to the inside of the water tank 9. The skin-like block 3 is installed in the mounting groove 17, and the channel 4 of the skin-like block 3 corresponds to the through hole 18. The skin-like block 3 corresponds to the abdomen;

[0077] The upper surface of the skin-like block 3 in the mounting groove 17 does not protrude from the outer wall of the upper main body 8 of the model.

[0078] The water tank 9 is used to place the skin-like block 3 on the abdomen, and the water tank 9 is used to support it.

[0079] The lower end surface of the lower body 6 of the model is formed with a plurality of placement planes 19;

[0080] After being placed on the platform, the surface is prevented from abutting against the corresponding platform, so that stable placement can be achieved.

[0081] A drain pipe 20 is provided at the bottom of the fixed groove 7, and a drain outlet 21 is provided at the bottom of the water tank 9. When the water tank 9 is installed in the fixed groove 7, the edge of the drain outlet 21 abuts against the upper end surface of the drain pipe 20. At the same time, a valve is installed on the drain pipe 20 to control the conduction or closing of the drain pipe 20.

[0082] With this design, after the water tank 9 is installed in the fixed groove 7, the end face of the drain port 21 of the water tank 9 directly abuts the end of the sealed drain pipe 20, and then cooperates with the valve on the drain pipe 20 to realize the discharge of the liquid in the water tank 9.

[0083] refer to Figure 7 At the same time, the artificial blood vessels in the model have corresponding names, including: right femoral artery 24 of the neck, left femoral vein 25 of the neck, abdominal aorta 27, inferior vena cava 26, right femoral artery 28 of the leg, right femoral vein 29 of the leg, superficial femoral artery 30, left femoral artery 31 of the leg, left femoral vein 32 of the leg;

[0084] The abdominal aorta 27 is connected to the circulation pump 10, and the abdominal aorta 27 is connected to the right femoral artery 28 and the left femoral artery 31 of the leg through a three-way connector 33; the inferior vena cava 26 is connected to the right femoral vein 29 and the left femoral vein 32 of the leg through a three-way connector 33; at the same time, a valve is installed on each artificial blood vessel. When the corresponding artificial blood vessel needs to be replaced or a blood vessel needs to be closed, it is only necessary to control the corresponding valve.

[0085] The above shows and describes the basic principles and main features of the present technical solution and the advantages of the present technical solution. Those skilled in the art should understand that the present technical solution is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present technical solution. Various changes and improvements may be made to the present technical solution without departing from the spirit and scope of the present technical solution. Such changes and improvements fall within the scope of the present technical solution for which protection is sought. The scope of protection claimed by the present technical solution is defined by the appended claims and their equivalents.

Claims

1. An ECMO puncture and diversion training model with ultrasound quality control, characterized by: include: A simulation model body (1) is provided with a plurality of mounting positions (2); A plurality of skin-like blocks (3) are installed in the corresponding installation positions (2), and a channel (4) is provided on the skin-like blocks (3); An in-vivo circulation device (5) is installed in the simulation model main body (1), and an artificial blood vessel of the in-vivo circulation device (5) is placed in the corresponding channel (4); Wherein, the simulation model body (1) has: The model lower body (6) is hollow inside and open on the upper side. A fixing groove (7) is provided in the middle of the inner cavity of the model lower body (6) for fixing the water tank (9) of the in-vivo circulation device (5); A model upper body (8), the cover of which is arranged on the model lower body (6) and is used to cover the opening; The inner cavity of the lower main body (6) of the model is in communication with each installation position (2), so that the artificial blood vessel can enter the channel (4) from the inner cavity.

2. The ECMO puncture and flow training model with ultrasound quality control according to claim 1 is characterized by: The in vivo circulation device (5) comprises: a water tank (9) fixed in the fixing groove (7); a circulation pump (10), which is placed in the inner cavity of the lower body (6) of the model and is connected to the liquid outlet of the water tank (9) through an artificial blood vessel; A battery (11) is placed in the inner cavity of the lower body (6) of the model and connected to the circulation pump (10) via a wire; A plurality of artificial blood vessels, parts of which are placed in the channels (4) of the corresponding skin-like blocks (3), and the artificial blood vessels are respectively connected to the liquid outlet of the circulation pump (10) and the liquid return port of the water tank (9); The liquid inlet of the circulation pump (10) and the liquid outlet of the water tank (9) are connected via a pipeline; Powered by the battery (11), the circulating pump (10) can pump out the liquid in the water tank (9) and then transport it back to the water tank (9) after passing through the artificial blood vessel.

3. The ECMO puncture and bypass training model with ultrasound quality control according to claim 1 or 2, characterized in that: The peptoid block (3) has: An upper skin-like block (12) is provided with a groove (13); A lower skin-like block (14) is provided with a second groove (15); When the upper skin-like block (12) and the lower skin-like block (14) are docked with each other, the groove one (13) and the groove two (15) form the channel (4).

4. The ECMO puncture and bypass training model with ultrasound quality control according to claim 2 is characterized by: The bottom of the fixing groove (7) is provided with a plurality of mutually staggered ribs (16), and the upper end surfaces of the ribs (16) are flush.

5. The ECMO puncture and bypass training model with ultrasound quality control according to claim 2 is characterized by: The upper end surface of the water tank (9) is recessed with a mounting groove (17), the side wall of the mounting groove (17) penetrates the vertical side wall of the water tank (9), and a through hole (18) is provided on the opposite side thereof for conducting to the interior of the water tank (9). The skin-like block (3) is installed in the mounting groove (17), and the channel (4) of the skin-like block (3) corresponds to the through hole (18); The intracorporeal circulation device (5) has an abdominal aorta (27) and an inferior vena cava (26), and both the abdominal aorta (27) and the inferior vena cava (26) are located in a skin-like block (3) in a mounting groove (17), and is used for teaching ultrasound detection of large blood vessels.

6. The ECMO puncture and flow training model with ultrasound quality control according to claim 1 is characterized by: The lower end surface of the model lower body (6) is formed with a plurality of placement planes (19) for stable placement.

7. The ECMO puncture and bypass training model with ultrasound quality control according to claim 2 is characterized by: A drain pipe (20) is provided at the bottom of the fixed groove (7), and a drain port (21) is provided at the bottom of the water tank (9). When the water tank (9) is installed in the fixed groove (7), the edge of the drain port (21) abuts against the upper end surface of the drain pipe (20), and a valve is installed on the drain pipe (20) to control the conduction or closing of the drain pipe (20).

8. The ECMO puncture and bypass training model with ultrasound quality control according to claim 3 is characterized by: The skin-like block (3) is at least divided into: A neck skin block, which is installed in the installation position (2) of the neck of the simulation model body (1); An abdominal skin-like block, which is installed in the installation position (2) of the abdomen of the simulation model main body (1); Two leg skin-like blocks, which are mounted in the mounting positions (2) of the legs of the simulation model body (1); By using skin-like blocks (3) at different positions, teaching of different parts can be achieved.

9. The ECMO puncture and bypass training model with ultrasound quality control according to claim 8, characterized in that: A superficial femoral artery channel (22) is opened in one of the leg skin-like blocks, and a side branch artificial blood vessel (23) is connected to the artificial blood vessel through a three-way connector (33). The side branch artificial blood vessel (23) is partially placed in the superficial femoral artery channel (22) for teaching the establishment of ECMO side branches.

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