HCM rotary atherectomy simulation device
By designing an HCM rotary nectomy simulation device and using a human body model and support unit to adjust the HCM heart model, the problem that existing training methods cannot accurately simulate the human heart structure and diverse surgical scenarios is solved, thereby improving the effectiveness of surgical training and operational skills.
Patent Information
- Application Number
- CN202510536999.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2025-09-19
AI Technical Summary
Existing HCM atherectomy training methods cannot accurately simulate the human heart's anatomical structure and the real surgical environment, and cannot provide diverse surgical operation scenarios, resulting in limited training effects.
A HCM atherectomy simulation device was designed, including a human body model, a support unit and an HCM heart model. An ultrasonic esophageal access and instrument entry part were set up. The support unit could adjust the height and angle of the HCM heart model to simulate the pathological characteristics of hypertrophic cardiomyopathy and provide diverse surgical scenarios.
Provide doctors with a real surgical environment, improve surgical training effects, enhance familiarity with surgical steps and techniques, adapt to the anatomical differences of different patients, and improve operational skills.
Smart Images

Figure CN120673640A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical teaching instruments, and more specifically, to a HCM rotary nectomy simulation device. Background Art
[0002] Hypertrophic cardiomyopathy is a common heart disease, and HCM atherectomy is one of its important treatments. However, current surgical training methods have many limitations. On the one hand, animal experiments and cadaver dissections are difficult to accurately simulate the complex human cardiac anatomy and the real surgical environment due to differences in human cardiac structure, limited resources, and ethical controversies. On the other hand, traditional training methods cannot provide a variety of surgical operation scenarios, making it difficult for doctors to fully familiarize themselves with surgical procedures and techniques during training, thus limiting the training effect. Summary of the Invention
[0003] The present application provides a new technical solution for an HCM atherectomy simulation device, which can at least solve the technical problem of poor training effect of existing HCM atherectomy.
[0004] According to the first aspect of the present application, an HCM rotary nectomy simulation device is provided, comprising: a human body model, the human body model being provided with an ultrasonic esophageal access and a chest mounting chamber, the ultrasonic esophageal access extending from the mouth of the human body model to the chest mounting chamber; and the chest of the human body model being provided with an instrument entry portion, the instrument entry portion corresponding to the position of the chest mounting chamber; a support unit and an HCM heart model, the support unit and the HCM heart model being both provided in the chest mounting chamber, the HCM heart model being mounted on the support unit, and the support unit being configured to enable the HCM heart model to adjust its height and angle.
[0005] Optionally, a mounting port is provided on a side of the chest cavity mounting chamber close to the front side of the human body model, and the HCM rotational thoracic surgery simulation device further includes a cover body, and the cover body is used to open and close the mounting port.
[0006] Optionally, the installation opening is formed as the instrument entry portion.
[0007] Optionally, the cover body is provided with a skin simulation portion, and the skin simulation portion is formed as the instrument entry portion.
[0008] Optionally, the support unit includes: a turntable, which is rotatably arranged in the chest mounting chamber around an axis extending in the front-to-back direction of the human body model to adjust the horizontal angle of the HCM heart model; a support assembly, which is arranged on the side of the turntable close to the instrument entry part, and the HCM heart model is installed on the support assembly; wherein, a space suitable for the entry of an ultrasound probe is provided between the HCM heart model and the turntable, and the support assembly is configured to enable the HCM heart model to adjust the height and vertical angle.
[0009] Optionally, the support assembly includes: a plurality of support columns, the plurality of support columns are distributed along the circumference of the turntable, and the plurality of support parts are arranged on the side of the turntable close to the instrument entry part; a first limit member and a second limit member, at least part of the support columns are provided with the first limit member and the second limit member; wherein, the first limit member and the second limit member are adjustable in the axial position of the support column, and the second limit member and the second limit member are used to limit the position of the HCM heart model in the axial direction of the support column.
[0010] Optionally, the first limiting member and the second limiting member are both open clamps.
[0011] Optionally, at least a portion of the support columns pass through the HCM heart model.
[0012] Optionally, the HCM rotary atherectomy simulation device further includes: a rotating member, at least one of the support columns is provided with the rotating member at one end close to the instrument entry portion, and the rotating member is rotatably provided on the human body model around the axis of the turntable; a locking member, the locking member is provided on the rotating member, and the locking member is used to lock the rotating member to the human body model or release the locking member.
[0013] Optionally, the HCM heart model is made of 10% by mass of polyvinyl alcohol, 3% by mass of gelatin, 0.2% by mass of talc, and the balance by mass of water.
[0014] According to the HCM atherectomy simulation device of the present application, the pathological characteristics of hypertrophic cardiomyopathy can be simulated by setting up an HCM heart model in the chest cavity installation chamber, and the ultrasonic esophageal access is set up so that the ultrasonic probe can smoothly enter the chest cavity installation chamber from the mouth to perform ultrasonic detection on the HCM heart model. At the same time, the instrument entry part is set up so that surgical instruments can enter the chest cavity installation chamber for operation, thereby providing doctors with a real surgical environment, which is conducive to doctors becoming familiar with surgical steps and techniques, thereby effectively improving the surgical training effect; in addition, the support unit is set up to adjust the height and angle of the HCM heart model, so as to simulate a variety of surgical scenarios and surgical field exposure requirements, which is conducive to carrying out personalized training, so that the HCM atherectomy simulation device can adapt to the anatomical differences of different patients and effectively improve the doctor's operating skills.
[0015] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.
[0017] Figure 1 This is a schematic structural diagram of an HCM atherectomy simulation device according to an embodiment of the present application at one viewing angle;
[0018] Figure 2 This is a schematic structural diagram of an HCM atherectomy simulation device according to an embodiment of the present application from another perspective;
[0019] Figure 3 1. A schematic structural diagram of a support unit and an HCM heart model of an HCM atherectomy simulation device according to an embodiment of the present application;
[0020] Figure 4 1 is a partial structural schematic diagram of an HCM atherectomy simulation device according to an embodiment provided by the present application;
[0021] Figure 5 This is an ultrasound imaging image of an HCM heart model of an HCM atherectomy simulation device according to an embodiment of the present application.
[0022] Reference numerals
[0023] 100. HCM atherectomy simulation device;
[0024] 10. Human body model; 11. Ultrasonic esophageal approach; 12. Thoracic cavity installation chamber; 13. Mouth; 14. Guide ring;
[0025] 20. Support unit; 21. Turntable; 22. Support assembly; 221. Support column; 222. First stopper; 223. Second stopper;
[0026] 30. HCM heart model; 40. Cover; 50. Rotating part. DETAILED DESCRIPTION
[0027] 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 arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application.
[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.
[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0030] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0031] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0032] The following first describes in detail the HCM atherectomy simulation device 100 according to an embodiment of the present application with reference to the accompanying drawings.
[0033] like Figures 1 to 4 As shown, the HCM rotational atherectomy simulation device 100 according to an embodiment of the present application includes: a human body model 10, a support unit 20 and an HCM heart model 30.
[0034] Specifically, the human body model 10 is provided with an ultrasonic esophageal access 11 and a chest mounting chamber 12, and the ultrasonic esophageal access 11 extends from the mouth 13 of the human body model 10 to the chest mounting chamber 12; and the chest of the human body model 10 is provided with an instrument entry part, and the position of the instrument entry part corresponds to the position of the chest mounting chamber 12; the support unit 20 and the HCM (Hypertrophic Cardiomyopathy) heart model 30 are both provided in the chest mounting chamber 12, the HCM heart model 30 is installed on the support unit 20, and the support unit 20 is configured to enable the HCM heart model 30 to adjust the height and angle.
[0035] In other words, if Figures 1 to 4 As shown, the HCM atherectomy simulation device 100 according to an embodiment of the present application mainly includes a human body model 10, the human body model 10 is provided with a mouth 13, and a chest cavity mounting chamber 12 located at the chest cavity position of the human body model 10, wherein the mouth 13 is in a mounting mouth state, and the human body model 10 is provided with an ultrasonic esophageal access path 11 between the mouth 13 and the chest cavity mounting chamber 12, the first end of the ultrasonic esophageal access path 11 is connected to the mouth 13, and the second end of the ultrasonic esophageal access path 11 is connected to the chest cavity mounting chamber 12, and the human esophagus can be simulated through the ultrasonic esophageal access path 11, so that the ultrasonic probe can enter the chest cavity mounting chamber 12 from the mouth 13 through the ultrasonic esophageal access path 11.
[0036] like Figures 1 to 3 As shown, a heart model and a support unit 20 are provided within the chest cavity mounting chamber 12. The heart model is an HCM heart model 30, which can simulate the pathological characteristics of hypertrophic cardiomyopathy. The support unit 20 can be mounted on a side wall of the chest cavity mounting chamber 12 near the back of the human body. The HCM heart model 30 is mounted on the support unit 20, which can support the HCM heart model 30 so that an ultrasound probe can perform ultrasound detection on the HCM heart model 30. Furthermore, the support unit 20 can adjust the height and angle of the HCM heart model 30, thereby simulating different surgical scenarios and surgical field exposure requirements.
[0037] In this embodiment, an instrument entry portion corresponding to the chest cavity installation chamber 12 is provided at the chest position of the human body model 10. During use, surgical instruments can enter the chest cavity installation chamber 12 from the instrument entry portion to perform simulated surgical operations on the HCM heart model 30.
[0038] Therefore, according to the HCM atherectomy simulation device 100 provided in this embodiment, the pathological characteristics of hypertrophic cardiomyopathy can be simulated through the HCM heart model 30 set in the chest mounting chamber 12, and the ultrasonic esophageal access 11 is set, so that the ultrasonic probe can smoothly enter the chest mounting chamber 12 from the mouth 13 to perform ultrasonic detection on the HCM heart model 30. At the same time, the instrument entry part is set so that the surgical instruments can enter the chest mounting chamber 12 for operation, thereby providing doctors with a real surgical environment, which is conducive to doctors becoming familiar with surgical steps and techniques, thereby effectively improving the surgical training effect; in addition, the support unit 20 is set to adjust the height and angle of the HCM heart model 30, so as to simulate a variety of surgical scenarios and surgical field exposure requirements, which is conducive to carrying out personalized training, so that the HCM atherectomy simulation device 100 can adapt to the anatomical differences of different patients and effectively improve the doctor's operating skills.
[0039] In some specific embodiments of the present application, a mounting port is provided on one side of the chest mounting chamber 12 close to the front side of the human body model 10, and the HCM rotational thoracic surgery simulation device 100 further includes a cover 40 for opening and closing the mounting port.
[0040] Specifically, if Figure 1 and Figure 2 As shown, the front side of the mannequin 10 (i.e., the side where the chest of the mannequin 10 is located) is provided with an installation opening. This installation opening corresponds to the position of the chest cavity installation chamber 12. The HCM heart model 30 can be installed in the chest cavity installation chamber 12 through the installation opening, making the removal, installation, and replacement of the HCM heart model 30 more convenient. In addition, the installation opening is also provided with a cover 40. The cover 40 can be used to seal the installation opening, thereby preventing foreign matter such as dust from entering the chest cavity installation chamber 12. The cover 40 can also be removed from the installation opening to facilitate the installation and replacement of the HCM heart model 30.
[0041] According to one embodiment of the present application, the installation opening is formed as an instrument entry portion.
[0042] In this embodiment, the installation port is used as the instrument entry portion, that is, the surgical instrument can directly enter the chest installation chamber 12 from the installation port for surgical simulation without setting up other structures, thereby reducing manufacturing costs and structural complexity.
[0043] In some specific embodiments of the present application, the cover body 40 is provided with a skin simulation portion, and the skin simulation portion is formed as an instrument entry portion.
[0044] Specifically, the cover 40 has a through-hole, to which the skin-simulating portion is fixedly connected. The skin-simulating portion can be made of silicone. The skin-simulating portion can be used as an instrument access point. During the simulated surgery, an incision can be made in the skin-simulating portion, allowing surgical instruments to enter the chest cavity installation chamber 12 through the incision.
[0045] In this embodiment, the skin simulation part is set up to achieve a high degree of consistency between the simulated surgical operation and the real operation, which can provide doctors with a realistic training experience, effectively improve surgical skills and operational proficiency, and lay a solid foundation for the smooth progress of actual surgery.
[0046] According to one embodiment of the present application, the support unit 20 includes: a turntable 21, which is rotatably arranged in the chest mounting chamber 12 around an axis extending in the front-to-back direction of the human body model 10 to adjust the horizontal angle of the HCM heart model 30; a support assembly 22, which is arranged on a side of the turntable 21 close to the instrument entry part, and the HCM heart model 30 is installed on the support assembly 22; wherein, a space suitable for the entry of an ultrasound probe is provided between the HCM heart model 30 and the turntable 21, and the support assembly 22 is configured to enable the HCM heart model 30 to adjust the height and vertical angle.
[0047] In other words, if Figures 1 to 3 As shown, the support unit 20 according to the embodiment of the application primarily comprises a turntable 21 and a support assembly 22. The axis of the turntable 21 extends along the front-to-back direction of the human body model 10. The turntable 21 is rotatably mounted about its axis at the bottom of the chest cavity. For example, a rotating shaft is fixedly connected to the lower end of the turntable 21, which is rotatably connected to the bottom of the chest cavity via a bearing seat. The support assembly 22 is mounted on the upper side of the turntable 21, and the HCM heart model 30 is mounted on the support assembly 22. Furthermore, the HCM heart model 30 is spaced apart from the turntable 21 along its axis to create a space for an ultrasound probe to enter, thereby enabling ultrasound testing of the HCM heart model 30. During use, the horizontal angle of the HCM heart model 30 can be adjusted by rotating the turntable 21. Both the height and vertical angle of the HCM heart model 30 on the support assembly 22 are also adjustable. Therefore, the HCM heart model 30 can be adjusted to a desired position based on actual needs to accommodate diverse surgical scenarios and surgical field exposure requirements.
[0048] In some specific embodiments of the present application, the support assembly 22 includes: a plurality of support columns 221, the plurality of support columns 221 are distributed along the circumference of the turntable 21, and the plurality of support parts are arranged on the side of the turntable 21 close to the instrument entry part; a first limit member 222 and a second limit member 223, at least part of the support columns 221 are provided with a first limit member 222 and a second limit member 223; wherein the first limit member 222 and the second limit member 223 are adjustable in the axial position of the support column 221, and the second limit member 223 and the second limit member 223 are used to limit the position of the HCM heart model 30 in the axial direction of the support column 221.
[0049] Specifically, if Figure 3As shown, the support assembly 22 mainly includes multiple support columns 221, for example, 3, 4, 5 and 6, etc., multiple support columns 221 extend along the axial direction of the turntable 21, multiple support columns 221 are distributed at intervals along the circumference of the turntable 21, the lower end of the support shaft is fixedly connected to the turntable 21, and multiple support columns 221 are provided with a first limit member 222 and a second limit member 223, the first limit member 222 and the second limit member 223 are distributed at intervals along the axial direction of the support column 221, and the positions of the first limit member 222 and the second limit member 223 in the axial direction of the support column 221 are adjustable. The first limiting member 222 can be located on the lower side of the HCM heart model 30 to limit the downward movement of the HCM heart model 30, and the second limiting member 223 can be located on the lower side of the HCM heart model 30 to limit the upward movement of the HCM heart model 30, so that the position of the HCM heart model 30 can be locked by cooperating with the first limiting member 222 and the second limiting member 223.
[0050] When adjusting the height of the HCM heart model 30, it is sufficient to synchronously adjust the position of the HCM heart model 30 on each support column 221; when adjusting the vertical angle of the HCM heart model 30, it is sufficient to adjust the position of the HCM heart model 30 on one or more support columns 221.
[0051] In this embodiment, height adjustment and vertical angle adjustment share an adjustment structure, which significantly simplifies the overall design, reduces the complexity of the simulation device, reduces manufacturing costs, and improves the reliability and service life of the simulation device.
[0052] According to one embodiment of the present application, the first limiting member 222 and the second limiting member 223 are both open clamps, and the open clamps are tightly fastened to the support column 221 .
[0053] In this embodiment, if Figure 4 As shown, the first limiting member 222 and the second limiting member 223 adopt the same open clamp design, which not only simplifies the structure and reduces the cost, but also has a simple structure and is easy to install and adjust later.
[0054] In some specific embodiments of the present application, at least a portion of the support column 221 passes through the HCM heart model 30.
[0055] That is to say, when installing the HCM heart model 30, a part of the support column 221 can be passed through the HCM heart model 30, or each support column 221 can be passed through the HCM heart model 30, and finally the position of the HCM heart model 30 is fixed by the first limit member 222 and the second limit member 223, thereby ensuring the position stability of the HCM heart model 30 during the entire use process.
[0056] In some optional examples of the present application, the support column 221 does not pass through the HCM heart model 30. The HCM heart model 30 is supported by multiple first limiting members 222 and fixed by the first limiting members 222 and the second limiting members 223, thereby making the entire assembly process simpler and faster.
[0057] According to one embodiment of the present application, the HCM rotary atherectomy simulation device 100 further includes: a rotating member 50, wherein the rotating member 50 is sleeved on one end of at least one support column 221 close to the instrument entry portion, and the rotating member 50 is rotatably arranged on the human body model 10 around the axis of the turntable 21; and a locking member, wherein the locking member is arranged on the rotating member 50, and the locking member is used to lock the rotating member 50 to the human body model 10 or release the locking member.
[0058] Specifically, if Figure 3 and Figure 4 As shown, the upper ends of the two support columns 221 are detachably provided with a rotating member 50, and the upper side of the human body model 10 at the installation port of the chest cavity installation chamber 12 is provided with a guide ring 14 extending along the circumference of the turntable 21. The rotating member 50 extends along the circumference of the turntable 21 and is rotatably provided on the guide ring 14, thereby making the rotation of the HCM heart model 30 more stable. In addition, a locking member is provided on the rotating member 50, and the position of the rotating member 50 can be locked by cooperating with the locking member and the guide ring 14, thereby achieving the fixation of the horizontal angle of the HCM heart model 30. For example, the locking member can be a top screw, and the top screw is threadedly connected to the rotating member 50. When it is necessary to fix the horizontal angle of the HCM heart model 30, it is only necessary to rotate the top screw so that it abuts against the guide ring 14, thereby limiting the rotating member 50 from continuing to rotate, thereby achieving the fixation of the horizontal angle of the HCM heart model 30. The structure is simple and the operation is convenient.
[0059] In some specific embodiments of the present application, the HCM heart model 30 is made of 10% by mass of polyvinyl alcohol, 3% by mass of gelatin, 0.2% by mass of talc, and the remainder by mass of water.
[0060] That is to say, the HCM heart model 30 can be made of a hydrogel material. Specifically, when preparing the HCM heart model 30, polyvinyl alcohol is first dispersed and added to water to swell the polyvinyl alcohol. The swollen polyvinyl alcohol and water are then heated to 90°C and vigorously stirred at 90°C for 2 hours. After the polyvinyl alcohol is completely dissolved in water and the temperature of the polyvinyl alcohol solution is lowered to 60°C, gelatin is added to the polyvinyl alcohol solution, and the resulting mixture is stirred at 60°C for 1 hour to obtain a gel precursor solution. Talc is then added to the gel precursor solution and stirred evenly to form a composite precursor solution. The composite precursor solution is then allowed to stand for 10 minutes to remove bubbles. The composite precursor solution is then poured into a heart mold, frozen at -20°C for 12 hours, then taken out and thawed at room temperature for 4 hours. This freeze-thaw cycle is repeated three times to obtain the HCM heart model 30.
[0061] It should be noted that if the imaging filler content is too low, the imaging effect of the HCM heart model 30 will be relatively weak, unable to clearly display the tissue structure, and difficult to meet the imaging effect requirements in the surgical simulation, thereby affecting the authenticity of the surgical simulation; on the contrary, if the imaging filler content is too high, the imaging effect of the HCM heart model 30 will be too strong, inconsistent with the actual imaging effect of human tissue, and also unable to simulate the real surgical experience. Figure 5 As shown, in this embodiment, the content of polyvinyl alcohol is 10%, the content of gelatin is 1%, and the content of talc is 0.3%. At this content, the imaging effect of the HCM heart model 30 can be guaranteed to match the actual imaging effect of human tissue, thereby effectively simulating the surgical scene and improving the authenticity of the simulation.
[0062] When using the HCM atherectomy simulation device 100 according to the embodiment of the present application, the human body model 10 is first placed in the desired position, such as the supine position; then, the ultrasound probe is extended from the ultrasonic esophageal approach 11 into the chest cavity installation chamber 12, so that the ultrasound probe performs ultrasonic detection on the HCM heart model 30; then, a double-layer purse is made in the apical avascular area of the HCM heart model 30 with a 3-0 prolene line and a felt sheet; then, the left ventricular apex is incised in a cross shape in the center of the apical purse, and the apical incision is gradually expanded using an apical dilator; then, under the guidance of esophageal ultrasound, the myocardial atherectomy system is inserted into the left ventricular cavity and positioned to the left ventricular base and middle myocardial hypertrophy to perform hypertrophic myocardial resection; after completing the atherectomy, the instrument is withdrawn, and finally the incision is sutured to complete the surgical simulation.
[0063] In summary, the HCM atherectomy simulation device 100 provided in this embodiment can simulate the anatomical characteristics of hypertrophic cardiomyopathy through the HCM heart model 30 set in the chest mounting chamber 12, and the ultrasonic esophageal access 11 is set, so that the ultrasonic probe can smoothly enter the chest mounting chamber 12 from the mouth 13 to perform ultrasonic detection on the HCM heart model 30. At the same time, the instrument entry part is set so that surgical instruments can enter the chest mounting chamber 12 for operation, thereby providing doctors with a real surgical environment, which is conducive to doctors becoming familiar with surgical steps and techniques, thereby effectively improving the surgical training effect; in addition, the support unit 20 is set to adjust the height and angle of the HCM heart model 30, so as to simulate a variety of surgical scenarios and surgical field exposure requirements, which is conducive to carrying out personalized training, so that the HCM atherectomy simulation device 100 can adapt to the anatomical structure differences of different patients and effectively improve the doctor's operating skills.
[0064] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.
Claims
1. A HCM atherectomy simulation device, characterized in that: include: A human body model (10), wherein the human body model (10) is provided with an ultrasonic esophageal access path (11) and a chest cavity installation chamber (12), wherein the ultrasonic esophageal access path (11) extends from a mouth (13) of the human body model (10) to the chest cavity installation chamber (12); The chest of the human body model (10) is provided with an instrument entry portion, and the instrument entry portion corresponds to the position of the chest cavity installation chamber (12); A support unit (20) and an HCM heart model (30), wherein the support unit (20) and the HCM heart model (30) are both arranged in the chest cavity mounting chamber (12), the HCM heart model (30) is mounted on the support unit (20), and the support unit (20) is configured to enable the HCM heart model (30) to adjust its height and angle.
2. The HCM atherectomy simulation device according to claim 1, characterized in that The chest cavity installation chamber (12) is provided with an installation opening on one side close to the front side of the human body model (10), and the HCM rotational thoracic surgery simulation device further comprises a cover (40), and the cover (40) is used to open and close the installation opening.
3. The HCM atherectomy simulation device according to claim 2, characterized in that The installation opening is formed as the instrument entry portion.
4. The HCM atherectomy simulation device according to claim 2, characterized in that The cover (40) is provided with a skin simulation portion, and the skin simulation portion is formed as the instrument entry portion.
5. The HCM atherectomy simulation device according to claim 1, characterized in that The support unit (20) comprises: a turntable (21), the turntable (21) being rotatably arranged in the chest cavity mounting chamber (12) around an axis extending in the front-to-back direction of the human body model (10) to adjust the horizontal angle of the HCM heart model (30); A support assembly (22), the support assembly (22) being arranged on a side of the turntable (21) close to the instrument entry portion, and the HCM heart model (30) being mounted on the support assembly (22); A space suitable for entry of an ultrasound probe is provided between the HCM heart model (30) and the turntable (21), and the support assembly (22) is configured to enable the HCM heart model (30) to adjust its height and vertical angle.
6. The HCM atherectomy simulation device according to claim 5, characterized in that The support assembly (22) comprises: a plurality of support columns (221), wherein the plurality of support columns (221) are distributed along the circumference of the turntable (21), and the plurality of support portions are provided on a side of the turntable (21) close to the instrument entry portion; A first limiting member (222) and a second limiting member (223), wherein at least a portion of the support column (221) is provided with the first limiting member (222) and the second limiting member (223); The first limiting member (222) and the second limiting member (223) are adjustable in axial position on the support column (221), and the second limiting member (223) and the second limiting member (223) are used to limit the position of the HCM heart model (30) in the axial direction of the support column (221).
7. The HCM atherectomy simulation device according to claim 6, characterized in that The first limiting member (222) and the second limiting member (223) are both open clamping rings.
8. The HCM atherectomy simulation device according to claim 6, characterized in that At least a portion of the support column (221) passes through the HCM heart model (30).
9. The HCM atherectomy simulation device according to claim 6, characterized in that Also includes: A rotating member (50), wherein the rotating member (50) is sleeved on one end of at least one of the support columns (221) close to the instrument entry portion, and the rotating member (50) is rotatably arranged on the human body model (10) around the axis of the turntable (21); A locking member is provided on the rotating member (50), and is used to lock the rotating member (50) to the human body model (10) or release the locking member.
10. The HCM atherectomy simulation device according to claim 1, characterized in that The HCM heart model (30) is made of 10% by mass of polyvinyl alcohol, 3% by mass of gelatin, 0.2% by mass of talc, and the balance of water.