Transcatheter mitral valve repair simulator
By designing a transcatheter mitral valve repair simulation simulator to mimic the structure of the human heart, the problem of traditional teaching methods being unable to effectively train minimally invasive interventional surgery has been solved, achieving efficient improvement in operational skills and enhanced safety.
Patent Information
- Application Number
- CN202520165227.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In the current technology, minimally invasive interventional surgery for mitral valve disease is difficult and risky. Traditional education methods cannot effectively simulate the real surgical environment, making it difficult for doctors to improve their operating skills and increasing surgical risks.
Design a transcatheter mitral valve repair simulation simulator, including a reservoir and model components, to simulate the structure of the human heart. The simulator uses a gland to achieve dynamic sealing of surgical instruments, simulates the actual surgical environment, and provides realistic operation training.
It shortens the learning curve for trainees, improves their surgical proficiency, reduces teaching costs and surgical risks, and enhances patient safety.
Smart Images
Figure CN223897982U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to surgical simulator technical field, concretely relates to a kind of transcatheter mitral valve repair surgery simulation simulator. BACKGROUND
[0002] With the development of medical technology, minimally invasive intervention surgery of mitral valve disease becomes important treatment method.This kind of operation is difficult, and risk is big, and the operation skill of doctor is strictly required.In traditional medical education, students mainly master surgical skill by theory learning and animal experiment.But there are many differences between animal body and human body, cannot completely simulate real human operation environment.This makes low seniority doctor and medical student face many difficulties in learning transcatheter mitral valve repair surgery process, difficult to obtain sufficient practice opportunity, to influence the promotion of surgical skill, also not conducive to the cultivation of medical talents.In addition, due to lack of effective simulation training equipment, doctor can cause operation failure in actual operation due to lack of experience, increase the operation risk of patient, threaten the health and life safety of patient.
[0003] Therefore, a new technical solution is needed to solve the above technical problems. CONTENT OF UTILITY MODEL
[0004] The utility model aims at providing a new technical scheme of transcatheter mitral valve repair surgery simulation simulator.
[0005] The utility model provides a kind of transcatheter mitral valve repair surgery simulation simulator, comprising: liquid storage tank, the lateral wall of the liquid storage tank is equipped with installation port, the installation port is equipped with luer, the luer is used to pass through surgical instrument, and dynamic sealing is realized with the surgical instrument;Model component, the model component is located in the liquid storage tank, the model component is used to simulate human heart structure, the model component includes mutually connected heart simulation body and inferior vena approach pipe;Wherein, the heart simulation body includes simulation main body, atrial septum simulation part being arranged in the simulation main body, and left atrium being arranged in the first side of the atrial septum simulation part, the atrial septum simulation part is configured to be able to be punctured by surgical instrument, the left atrium is equipped with left atrioventricular orifice, the left atrioventricular orifice is equipped with mitral valve simulation part, the first end of the inferior vena approach pipe is communicated with the space of the second side of the atrial septum simulation part, and the second end of the inferior vena approach pipe corresponds with the position of the luer.
[0006] Optionally, the heart simulation body is configured as left heart structure simulation body.
[0007] Optionally, the atrial septum simulation part includes soft simulation membrane, and the soft simulation membrane is arranged in the simulation main body.
[0008] Optionally, the atrial septum simulation part comprises a support body and a soft simulation membrane, the support body is arranged on the simulation main body, the support body is provided with a mark hole penetrating through along the thickness direction of the support body, and the soft simulation membrane is detachably connected to the side of the support body away from the left atrium.
[0009] Optionally, the soft simulation membrane is provided with at least one mark point corresponding to the position of the mark hole.
[0010] Optionally, the side wall of the inferior vena cava access tube is provided with a connecting rib extending along the length direction of the side wall, and the model assembly further comprises a support seat, the first end of the support seat is fixed to the bottom in the liquid storage tank, the second end of the support seat is provided with a placing groove suitable for accommodating the inferior vena cava access tube, and the support seat is provided with a connecting groove suitable for the connecting rib at one end of the placing groove in the length direction of the placing groove; and a fastener is arranged on the support seat, and the connecting rib is fastened in the connecting groove through the fastener.
[0011] Optionally, the heart simulation body extends a connecting pipe close to the side of the inferior vena cava access tube, the connecting pipe is in communication with the space of the second side of the atrial septum simulation part, and the model assembly further comprises a throat clamp, the connecting pipe is inserted into the first end of the throat clamp, and the inferior vena cava access tube is inserted into the second end of the throat clamp.
[0012] Optionally, the side of the liquid storage tank away from the mounting port is provided with an esophageal ultrasound access tube, and the esophageal ultrasound access tube is in communication with the inner side of the liquid storage tank.
[0013] Optionally, the bottom of the liquid storage tank is provided with a drain port, and a plugging piece is detachably connected to the drain port.
[0014] Optionally, the liquid storage tank, the simulation main body and the inferior vena cava access tube are configured as transparent pieces.
[0015] The trans-catheter mitral valve repair simulation simulator according to the utility model can simulate the heart structure of an actual human body through the model assembly, can provide a more real operation environment, greatly shortens the learning curve of the student on the trans-catheter mitral valve repair, improves the proficiency and skill of the student on the operation of the related instruments in the operation process, such as the precise operation of the puncture sheath and the guide wire, is beneficial to the student to master the operation process, is also beneficial to the doctor to fully practice and operate before the operation, thereby improving the operation skill and proficiency, reducing the operation risk, and finally achieving the purpose of improving the operation safety of the patient.
[0016] Other features and advantages of the present application will become apparent from the following detailed description of illustrative embodiments thereof, which proceeds with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.
[0018] Figure 1 is a structure schematic view of a transcatheter mitral valve repair simulation simulator according to an embodiment provided by the present application;
[0019] Figure 2 is a structure schematic view of a heart simulation body of a transcatheter mitral valve repair simulation simulator according to an embodiment provided by the present application in one perspective;
[0020] Figure 3 is a structure schematic view of a heart simulation body of a transcatheter mitral valve repair simulation simulator according to an embodiment provided by the present application in another perspective;
[0021] Figure 4 is a structure schematic view of a lower-cave access tube and a support seat of a transcatheter mitral valve repair simulation simulator according to an embodiment provided by the present application.
[0022] REFERENCE NUMERALS:
[0023] 100, transcatheter mitral valve repair simulation simulator;
[0024] 10, liquid storage tank; 11, Luer head; 12, plugging piece; 20, model assembly; 21, heart simulation body; 211, simulation main body; 21a, left atrium; 212, atrial septum simulation part; 212a, support body; 212b, mark hole; 213, mitral valve simulation part; 214, connecting tube; 22, lower-cave access tube; 221, connecting rib; 23, support seat; 231, connecting groove; 24, fastener; 25, throat clamp piece; 30, esophageal ultrasound access tube. DETAILED DESCRIPTION
[0025] Various illustrative embodiments of the present application will now be described in detail with reference to the accompanying figures. It should be noted that the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.
[0026] The following description of at least one exemplary embodiment is, therefore, not to be taken in a limiting sense as the sole exemplary embodiment is described with reference to the drawings and is merely illustrative of the many possible embodiments of the present application.
[0027] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus can be considered as part of the present disclosure.
[0028] In all of the compositions and methods shown and discussed herein, any specific numerical value should be interpreted as merely an example, and not as a limitation. Other examples of the exemplary embodiments can have different values.
[0029] It should be noted that like reference numerals and letters refer to like items throughout the several views, and thus a discussion of some items throughout the several views is not necessary.
[0030] The catheter-based mitral valve repair simulation device 100 according to the embodiments of the present application is described in detail below with reference to the accompanying drawings.
[0031] As shown in the drawings, the catheter-based mitral valve repair simulation device 100 according to the embodiments of the present application includes a liquid storage tank 10 and a model assembly 20. Figures 1 to 4
[0032] Specifically, the side wall of the liquid storage tank 10 is provided with a mounting port, and the mounting port is provided with a Luer fitting 11 for passing through surgical instruments and achieving dynamic sealing with the surgical instruments. The model assembly 20 is arranged in the liquid storage tank 10 and is used to simulate the structure of the human heart. The model assembly 20 includes a heart simulation body 21 and an inferior vena cava access tube 22 connected to each other. The heart simulation body 21 includes a simulation main body 211, a atrial septum simulation part 212 arranged on the simulation main body 211, and a left atrium 21a arranged on the first side of the atrial septum simulation part 212. The atrial septum simulation part 212 is configured to be punctured by surgical instruments. The left atrium 21a is provided with a left atrioventricular orifice, and the left atrioventricular orifice is provided with a mitral valve simulation part 213. The first end of the inferior vena cava access tube 22 is in communication with the space on the second side of the atrial septum simulation part 212, and the second end of the inferior vena cava access tube 22 corresponds to the position of the Luer fitting 11.
[0033] In other words, as shown in the drawings, Figures 1 to 3 As shown, the transcatheter mitral valve repair simulation simulator 100 according to an embodiment of this utility model mainly includes a reservoir 10 and a model assembly 20. The reservoir 10 can be made of acrylic material, with an opening at the top to facilitate water injection. One side wall of the reservoir 10 has an installation port communicating with its interior. A sealing gasket is fixedly connected to one end of the installation port via a flange structure. Specifically, the sealing gasket can be made of rubber or silicone. The sealing gasket is tightened and fixed by the flange structure. The sealing gasket has an installation hole corresponding to the installation port, which corresponds to the size of the gland 11, allowing the first end of the gland 11 to pass through the sealing gasket and be fixed to it, thus ensuring a tight connection. The gland 11 is used to pass through surgical instruments and achieve dynamic sealing with them. Surgical instruments may include a puncture sheath and a guide sheath, the sizes of which can be determined according to actual needs, and will not be elaborated further in this embodiment.
[0034] like Figures 1 to 3 As shown, the model component 20 is installed inside the reservoir 10 and can simulate the structure of the human heart. Specifically, the model component 20 includes an interconnected heart simulator 21 and an inferior vena cava tube 22. The heart simulator 21 can be fabricated using 3D printing technology based on the patient's imaging data. The heart simulator 21 includes a simulator body 211, an atrial septum simulator 212 disposed on the simulator body 211, and a left atrium 21a disposed on the first side of the atrial septum simulator 212. The left atrium 21a has a left atrioventricular orifice, and the left atrioventricular orifice has a mitral valve simulator 213. The atrial septum simulator 212 is configured to be punctured by surgical instruments. For example, the puncture site of the atrial septum simulator 212 can be made of silicone material to facilitate puncture. The mitral valve simulator 213 can be formed of silicone material to achieve the effect of mitral valve simulation.
[0035] The first end of the inferior vena cava tube 22 is connected to the space on the second side of the atrial septum simulation section 212 (when the heart simulation body 21 is the whole structure of the human heart, this space is the right atrium). The second end of the inferior vena cava tube 22 is spaced apart from the first end of the Gland head 11 and corresponds to the position of the Gland head 11, so that surgical instruments can be inserted into the inferior vena cava tube 22 to facilitate surgical simulation.
[0036] It should be noted that the position where the inferior vena cava access tube 22 is connected to the heart simulator 21 corresponds to the position where the human heart and inferior vena cava are connected. Those skilled in the art should understand this, and it will not be described again in this embodiment.
[0037] According to the embodiment of this utility model, the transcatheter mitral valve repair simulation simulator 100, during simulation training, firstly, inserts a puncture sheath into the gland tip 11 and adds water to the reservoir 10 so that the liquid level covers the entire model assembly 20. In this case, the water enters the interior of the model assembly 20, which can simulate body fluids and help reduce the friction between the surgical instruments and the model assembly 20, thus simulating the surgical process more realistically. Then, a guidewire is inserted into the puncture sheath, and the puncture sheath is pushed so that it enters the space on the second side of the interatrial septum simulation section 212 (i.e., the right atrium) through the inferior vena cava access tube 22. After the puncture sheath enters the right atrium, the direction of the puncture sheath is adjusted to puncture the interatrial septum simulation section 212 to puncture the left atrium 21a. After puncturing the left atrium 21a, subsequent surgical steps can be performed. For example, the clamp is guided to the location of the mitral valve simulation section 213 by the guidewire before instrument operation.
[0038] Therefore, the transcatheter mitral valve repair simulator 100 of this invention, through the set model component 20, can simulate the actual human heart structure, providing a more realistic surgical environment. This greatly shortens the learning curve for trainees in transcatheter mitral valve repair, improves their proficiency and skills in operating related instruments during the surgical procedure, such as the precise operation of the puncture sheath and guidewire. This helps trainees master the surgical procedure and also allows doctors to conduct sufficient practice and training before surgery, thereby improving surgical skills and proficiency, reducing surgical risks, and ultimately improving patient safety. Moreover, the transcatheter mitral valve repair simulator 100 is reusable, reducing teaching costs and avoiding the risk of harm to patients.
[0039] In some optional examples of this utility model, the heart simulator 21 is configured as the whole of a human heart, the space on the second side of the interatrial septum simulator 212 is the right atrium, and the mitral valve simulator 213 is located between the left atrium 21a and the left ventricle.
[0040] In some specific embodiments of this utility model, the mitral valve simulation part 213 and the simulation body 211 are detachably connected together by a plurality of screws.
[0041] According to one embodiment of the present invention, the heart simulator 21 is configured as a left ventricular structure simulator.
[0042] In other words, such as Figures 1 to 3As shown, the heart simulator 21 is not a simulation of the entire human heart, but only a simulation of the left ventricular structure. This simplifies the overall design of the transcatheter mitral valve repair simulator 100, reduces unnecessary complexity, and effectively lowers production costs. Furthermore, it keeps the space on the second side of the atrial septum simulator 212 open. During the procedure, the end of the puncture sheath needs to be turned to the position corresponding to the atrial septum simulator 212 before puncture can be performed. However, if the trainee's instrument handling skills are poor and they are unable to turn the end of the puncture sheath to the correct position, they can use their hand or tools to adjust the end of the puncture sheath to the correct position from the second side of the atrial septum simulator 212. This allows the trainee to move on to the next step of practice, facilitating modular practice and further shortening the learning curve for transcatheter mitral valve repair.
[0043] In some specific embodiments of this utility model, the room interval simulation part 212 includes a soft simulation membrane, which is disposed on the simulation body 211.
[0044] Specifically, the atrial septum simulation part 212 is configured as a soft simulation membrane, which can be made of silicone. It can simulate the softness of the human body, which helps to improve the realism of the simulated surgery and ensures that the atrial septum simulation part 212 can be punctured by surgical instruments.
[0045] According to one embodiment of the present invention, the atrial septum simulation part 212 includes: a support body 212a and a soft simulation membrane. The support body 212a is disposed on the simulation body 211. The support body 212a has a marking hole 212b that penetrates along its thickness direction. The soft simulation membrane is detachably connected to the side of the support body 212a away from the left atrium 21a.
[0046] In other words, such as Figures 1 to 3 As shown, the atrial septum simulation section 212 mainly includes a support body 212a and a soft simulation membrane. The support body 212a and the simulation body 211 can be formed as an integral structure. The support body 212a has a marking hole 212b that extends through its thickness direction. There can be one or more marking holes 212b, each marking hole 212b corresponding to a predetermined puncture point. The soft simulation membrane is disposed on the side of the support body 212a opposite to the left atrium 21a and covers the support body 212a. When the position of the puncture sheath and the marking hole 212b does not correspond to the predetermined point (i.e., the position of the marking hole 212b), the puncture sheath will not pass through the entire atrial septum simulation section 212. When the position of the puncture sheath and the marking hole 212b corresponds to the predetermined point, the puncture sheath can pass through the entire atrial septum simulation section 212. This can provide the trainee with immediate feedback and help the trainee quickly know whether the puncture position is accurate.
[0047] In some specific embodiments of this utility model, the soft simulation film is provided with at least one marking point, and the marking point corresponds to the position of the marking hole 212b.
[0048] Specifically, the soft simulation membrane has at least one marker point, which corresponds to the number and position of the marking holes 212b. The marker point can be a different color from other areas of the soft simulation membrane to achieve the marking function. The marker point helps trainees determine the accurate puncture location, which is conducive to the smooth performance of the simulated surgery. Trainees can choose to use a soft simulation membrane with or without marker points for simulated surgery based on their own experience.
[0049] According to one embodiment of the present invention, the side wall of the lower cavity inlet tube 22 is provided with a connecting rib 221 extending along its length direction. The model assembly 20 further includes: a support base 23, the first end of which is fixed to the bottom of the liquid storage tank 10, the second end of which is provided with a placement groove suitable for accommodating the lower cavity inlet tube 22, and a connecting groove 231 adapted to the connecting rib 221 at one end of the placement groove along its length direction; and a fastener 24, which is provided on the support base 23, and the connecting rib 221 is fastened to the connecting groove 231 by the fastener 24.
[0050] In other words, such as Figure 1 and Figure 4 As shown, a support base 23 is provided at the bottom of the inner side of the reservoir 10. The first end (i.e., the lower end) of the support base 23 is fixedly connected to the reservoir 10. The second end (i.e., the lower end) of the support base 23 is provided with a placement groove adapted to the lower cavity inlet tube 22. The lower cavity inlet tube 22 is placed in the placement groove, and the inner side of the placement groove has connecting grooves 231 on both sides of the lower cavity inlet tube 22. One end of the connecting groove 231 passes through the support base 23 along the length direction of the lower cavity inlet tube 22. The side wall of the lower cavity inlet tube 22 is provided with two connecting ribs 221 corresponding to the connecting grooves 231. The lower cavity inlet tube 22 and the support base 23 can be connected by the connecting ribs 221 cooperating with the connecting grooves 231, and the upper part of the lower cavity inlet tube 22 will not be obstructed, thus ensuring the surgical field of view.
[0051] Specifically, such as Figure 1 and Figure 4As shown, the second end of the support base 23 has a first connecting hole at a position corresponding to the connecting groove 231. This first connecting hole is located above the connecting groove 231. A second connecting hole corresponding to the first connecting hole is also provided below the connecting groove 231. The fastener 24 can be a screw. The first end of the fastener 24 passes through the first connecting hole and is threadedly connected to the support base 23 through the second connecting hole below the connecting groove 231. When the fastener 24 is tightened, the second end of the fastener 24 presses against the upper part of the connecting groove 231, thereby clamping and fixing the connecting rib 221 within the connecting groove 231. The structure is simple and assembly is convenient.
[0052] In some specific embodiments of this utility model, the heart simulator 21 has a connecting tube 214 extending from the side near the inferior vena cava tube 22. The connecting tube 214 communicates with the space on the second side of the atrial septum simulator 212. The model assembly 20 also includes a laryngeal clamp 25. The connecting tube 214 is inserted into the first end of the laryngeal clamp 25, and the inferior vena cava tube 22 is inserted into the second end of the laryngeal clamp 25.
[0053] In other words, such as Figures 1 to 3 As shown, the heart simulator 21 and the inferior vena cava tube 22 can be detachably connected together via a hose clamp 25. Specifically, the heart simulator 21 has a connecting tube 214 extending from the position where it connects to the inferior vena cava tube 22. The connecting tube 214 is inserted into the first end of the hose clamp 25, and the inferior vena cava tube 22 is inserted into the second end of the hose clamp 25. The hose clamp 25 can reliably fix the connecting tube 214 of the heart simulator 21 and the inferior vena cava tube 22 together, and facilitates subsequent disassembly.
[0054] According to one embodiment of the present invention, an esophageal ultrasound inlet tube 30 is provided on the side of the liquid storage tank 10 away from the installation port, and the esophageal ultrasound inlet tube 30 is connected to the inner side of the liquid storage tank 10.
[0055] Specifically, such as Figure 1 As shown, the reservoir 10 has a connection port on the side opposite to the mounting port, and an esophageal ultrasound inlet tube 30 is located on the side opposite to the mounting port. The first end of the esophageal ultrasound inlet tube 30 can be fixedly connected to the reservoir 10 via a flange structure. During use, the second end of the esophageal ultrasound inlet tube 30 is higher than the liquid level inside the reservoir 10 to prevent liquid from flowing out of the esophageal ultrasound inlet tube 30. During simulated surgery, the ultrasound probe can enter the outlet tank through the esophageal ultrasound inlet tube 30, simulating ultrasound-guided procedures in actual surgery. This provides a more realistic surgical environment and helps trainees better master ultrasound-guided surgical techniques.
[0056] In some specific embodiments of this utility model, the bottom of the liquid storage tank 10 is provided with a drain outlet, and the drain outlet is detachably connected to a sealing member 12.
[0057] like Figure 1 As shown, in order to quickly drain the water in the storage tank 10, a drain outlet can be provided at the bottom of the storage tank 10. The drain outlet can be a round hole structure, and a sealing member 12 is threadedly connected to the drain outlet. When drainage is needed, the sealing member 12 can be removed to drain the water in the storage tank 10, which is convenient to operate.
[0058] According to one embodiment of the present invention, the liquid storage tank 10, the simulation body 211, and the lower cavity inlet pipe 22 are all configured as transparent components.
[0059] In other words, the reservoir 10, the simulation body 211, and the inferior vena cava access tube 22 can all be made of transparent materials. This not only facilitates the visual operation of trainees, but also avoids the use of auxiliary equipment such as ultrasound during surgical simulation, further improving the practicality and teaching effect of the transcatheter mitral valve repair simulator 100.
[0060] In summary, the transcatheter mitral valve repair simulator 100 of this invention, through its model components 20, can simulate the actual human heart structure, providing a more realistic surgical environment. This significantly shortens the learning curve for trainees in transcatheter mitral valve repair, improves their proficiency and skills in operating related instruments during the surgical procedure, such as the precise operation of the puncture sheath and guidewire. It helps trainees master the surgical procedure and also allows doctors to conduct sufficient preoperative practice and training, thereby improving surgical skills and proficiency, reducing surgical risks, and ultimately enhancing patient safety. Furthermore, the transcatheter mitral valve repair simulator 100 is reusable, reducing teaching costs and avoiding the risk of harm to patients.
[0061] Although specific embodiments of the present invention 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 the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A simulation simulator for transcatheter mitral valve repair, characterized in that, include: A liquid storage tank (10) has an installation port on its side wall. The installation port is equipped with a gland (11) for passing through a surgical instrument and achieving a dynamic seal with the surgical instrument. Model component (20), the model component (20) is disposed inside the reservoir (10), the model component (20) is used to simulate the structure of the human heart, the model component (20) includes a heart simulation body (21) and a inferior vena cava tube (22) connected to each other; The cardiac simulator (21) includes a simulator body (211), an atrial septum simulator (212) disposed on the simulator body (211), and a left atrium (21a) disposed on the first side of the atrial septum simulator (212). The atrial septum simulation unit (212) is configured to be punctured by surgical instruments, the left atrium (21a) is provided with a left atrioventricular orifice, and the left atrioventricular orifice is provided with a mitral valve simulation unit (213). The first end of the lower cavity inlet tube (22) is connected to the space on the second side of the interatrial septum simulation part (212), and the second end of the lower cavity inlet tube (22) corresponds to the position of the gland head (11).
2. The transcatheter mitral valve repair simulation simulator according to claim 1, characterized in that, The heart simulator (21) is configured as a left heart structure simulator.
3. The transcatheter mitral valve repair simulation simulator according to claim 1, characterized in that, The room interval simulation unit (212) includes a soft simulation membrane, which is disposed on the simulation body (211).
4. The transcatheter mitral valve repair simulation simulator according to claim 1, characterized in that, The room interval simulation unit (212) includes: The support (212a) and the soft simulation membrane are provided. The support (212a) is disposed on the simulation body (211). The support (212a) is provided with a marking hole (212b) that runs through it along its thickness direction. The soft simulation membrane is detachably connected to the side of the support (212a) away from the left atrium (21a).
5. The transcatheter mitral valve repair simulation simulator according to claim 4, characterized in that, The soft simulated membrane is provided with at least one marking point, the marking point being located corresponding to the marking hole (212b).
6. The transcatheter mitral valve repair simulation simulator according to claim 1, characterized in that, The sidewall of the lower cavity inlet tube (22) is provided with a connecting rib (221) extending along its length direction, and the model assembly (20) further includes: Support base (23), the first end of the support base (23) is fixed to the bottom of the liquid storage tank (10), the second end of the support base (23) is provided with a placement groove suitable for accommodating the lower cavity inlet pipe (22), and the support base (23) is provided with a connecting groove (231) adapted to the connecting rib (221) at one end of the placement groove in the length direction; Fastener (24) is provided on the support base (23), and the connecting rib (221) is fastened to the connecting groove (231) by the fastener (24).
7. The transcatheter mitral valve repair simulation simulator according to claim 1, characterized in that, The cardiac simulator (21) has a connecting tube (214) extending from the side near the inferior vena cava inlet tube (22), the connecting tube (214) communicating with the space on the second side of the atrial septum simulator (212), and the model assembly (20) further includes: The hose clamp (25) is connected to the first end of the hose clamp (25), and the lower cavity inlet tube (22) is connected to the second end of the hose clamp (25).
8. The transcatheter mitral valve repair simulation simulator according to claim 1, characterized in that, The storage tank (10) is provided with an esophageal ultrasound inlet tube (30) on the side opposite to the installation port, and the esophageal ultrasound inlet tube (30) is connected to the inside of the storage tank (10).
9. The transcatheter mitral valve repair simulation simulator according to claim 1, characterized in that, The bottom of the liquid storage tank (10) is provided with a drain outlet, and the drain outlet is detachably connected to a sealing component (12).
10. The transcatheter mitral valve repair simulation simulator according to any one of claims 1 to 9, characterized in that, The liquid storage tank (10), the simulation body (211), and the lower cavity inlet pipe (22) are all configured as transparent components.