A vascular intervention teaching and training model

Abstract

The present invention relates to the technical field of teaching and training models, and specifically discloses a vascular intervention teaching and training model, including a teaching model body; a vascular model; a trigger component, the trigger component is located outside the vascular model; and a simulation component, the simulation component is located outside the vascular model. The vascular intervention teaching and training model monitors the impact force of a catheter on the inner wall of the vascular model at different pushing speeds in real time through the trigger component. The simulation component adjusts the inner diameter of the vascular model and the viscosity of the fluid flowing in the blood vessel according to the impact force detected by the trigger component. By simulating the changes in the blood in the blood vessel when vascular spasm or thrombosis occurs, the doctor's hand feeling for pushing the catheter is trained, and the doctor's perception of the change in the blood resistance in the blood vessel when pushing the catheter is improved. In actual surgery, by sensing the changes in the blood in the blood vessel, the doctor can promptly discover the sudden situation and respond accordingly, thereby reducing the patient's surgical risk and complication rate.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching and training models, and in particular to a vascular intervention teaching and training model. Background Art

[0002] The vascular intervention teaching and training model is a simulation equipment designed specifically for medical education and training. By simulating the real human vascular system, the vascular intervention teaching and training model allows operators to practice the operation of interventional devices such as catheters and guidewires without the risk of radiation exposure. Medical students and doctors can improve their proficiency in vascular interventional surgery through repeated practice on the model.

[0003] Vascular intervention surgery itself is highly risky, and various emergencies may occur during the operation, such as vascular rupture, thrombosis, arrhythmia, etc. However, the general vascular intervention teaching and training model mainly trains medical students or doctors to accurately push the catheter to the target blood vessel position, which makes it difficult for medical students or doctors to conduct special training for emergencies during surgery, affecting their ability to respond in actual surgery and increasing patients' surgical risks and complication rates. To this end, we propose a vascular intervention teaching and training model. Summary of the invention

[0004] The purpose of the present invention is to provide a vascular intervention teaching training model to solve the problem raised in the above background technology that medical students or doctors find it difficult to conduct specialized training for emergencies during surgery, which affects their ability to respond in actual surgery and increases the surgical risks and complication rates of patients.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vascular intervention teaching and training model, comprising a teaching model body; and a vascular model, the vascular model being connected to the teaching model body;

[0006] A trigger component is located outside the blood vessel model and monitors the impact strength of the catheter on the inner wall of the blood vessel when the trainee pushes the catheter;

[0007] The simulation component is located outside the blood vessel model. The trigger component is connected to the simulation component. After the trigger component monitors the impact intensity of the catheter on the inner wall of the blood vessel model, the simulation component adjusts the inner diameter of the blood vessel model when the detected impact intensity reaches a first threshold, and adjusts the viscosity of the flowing liquid in the blood vessel when the detected impact intensity reaches a second threshold.

[0008] Among them, the trigger component includes a detection box fixedly connected to the outside of the blood vessel model, a liquid is arranged on the inner wall of the detection box, a support seat is fixedly connected to the outside of the detection box, the support seat is fixedly connected to the surface of the teaching model body, and a vibration sensor is fixedly connected to the surface of the detection box.

[0009] Among them, the simulation component includes a distribution box fixedly connected to the outside of the blood vessel model, the distribution box is fixedly connected to the main surface of the teaching model, a plurality of drainage holes are opened on the inner wall of the distribution box, a plurality of connecting holes are opened on the surface of the blood vessel model, the connecting holes correspond to the drainage holes one by one, an adjusting part for controlling the closing and opening of the drainage holes is provided on the inner wall of the distribution box, an infusion tube is connected to the outside of the distribution box, a micro pump is connected to the outside of the micro pump, and a liquid storage tank is fixedly connected to the main surface of the teaching model.

[0010] A latex pad is fixedly connected to the inner side of the distribution box. The latex pad is annular and fits the surface of the blood vessel model.

[0011] Among them, the adjusting part includes a closing cylinder, a rotating groove is opened on the inner wall of the distribution box, the closing cylinder is rotatably connected to the inner wall of the rotating groove, a plurality of docking holes are opened on the surface of the closing cylinder, and a rotating part is provided at the end of the closing cylinder to drive the closing cylinder to rotate.

[0012] Among them, the rotating part includes a connecting plate fixedly connected to one end of the closed tube, the connecting plate is rotatably connected to the inner wall of the distribution box, a plurality of stirring rods are fixedly connected to the outer side of the connecting plate, a transmission gear ring is fixedly connected to the side of the connecting plate close to the closed tube, a transmission part for driving the transmission gear ring to rotate is provided on the inner side of the transmission gear ring, and a reset part for driving the connecting plate to reset is provided on the side of the connecting plate away from the closed tube.

[0013] Among them, the transmission part includes a transmission gear meshing with a transmission gear ring, a transmission rod is fixedly connected to the outside of the transmission gear, the transmission rod is rotatably connected to the inner wall of the distribution box, and a plurality of blades are fixedly connected to the outside of the transmission rod, and the blades are located below the infusion tube.

[0014] The reset member comprises a rotating ring fixedly connected to the connecting plate, a vortex spring is fixedly connected to the inner side of the rotating ring, and the vortex spring is fixed to the inner wall of the distribution box.

[0015] Among them, a moving part for changing the position of the vibration sensor on the surface of the detection box is provided on the outer side of the transmission rod, and the moving part includes a connecting rod fixedly connected to the transmission rod, an adjusting gear is fixedly connected to the outer side of the connecting rod, an adjusting ring is provided on the outer side of the adjusting gear, the adjusting ring is rotatably connected to the inner wall of the distribution box, one end of the adjusting ring passing through the inner wall of the distribution box is fixedly connected to a connecting frame, the connecting frame is connected to the vibration sensor, an adjustment groove slidably connected to the vibration sensor is opened on the surface of the detection box, and a plurality of rubber teeth are fixedly connected to one end of the adjusting ring close to the adjusting gear.

[0016] Wherein, the rubber tooth is provided with a concave portion and a convex portion.

[0017] The present invention has at least the following beneficial effects:

[0018] When the trainee practices pushing the catheter, the catheters with different moving speeds exert different impact forces on the inner wall of the blood vessel model when moving on the inner wall of the blood vessel model. When the speed at which the trainee pushes the catheter is greater than the predetermined speed range for the practice, the trigger component monitors in real time the impact force of the catheter on the inner wall of the blood vessel model at different pushing speeds. The simulation component adjusts the inner diameter of the blood vessel model or the viscosity of the fluid flowing in the blood vessel according to the magnitude of the impact force detected by the trigger component, so as to simulate the situation in which the catheter moves too fast during vascular intervention surgery, causing vascular spasm or thrombosis. By simulating the changes in blood in the blood vessels when vascular spasm or thrombosis occurs, the doctor's feel for pushing the catheter is trained, and the doctor's ability to perceive changes in blood resistance in the blood vessels when pushing the catheter is improved. In actual surgery, the doctor can perceive the changes in blood in the blood vessels, detect emergencies in a timely manner, and respond accordingly, thereby reducing the patient's surgical risks and complication rates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the present invention;

[0020] Figure 2 It is a schematic top view of the present invention as a whole;

[0021] Figure 3 It is a schematic side view of the trigger assembly of the present invention;

[0022] Figure 4 for Figure 3 Enlarged schematic diagram of area A in the middle;

[0023] Figure 5 It is a schematic diagram of the structure of the simulation component of the present invention;

[0024] Figure 6 A schematic diagram of the connection relationship between the blood vessel model and the trigger component of the present invention;

[0025] Figure 7 It is a side cross-sectional schematic diagram of the distribution box of the present invention;

[0026] Figure 8 It is a schematic cross-sectional view of the end of the distribution box of the present invention;

[0027] Fig. 9 for Figure 8 Enlarged schematic diagram of area B in the middle;

[0028] Fig.10 It is a schematic diagram of the structure of the moving part of the present invention;

[0029] Fig.11 This is a schematic diagram of the meshing state of the adjusting gear and the rubber tooth of the present invention;

[0030] Fig.12 for Fig.11 Enlarged schematic diagram of area C in the middle.

[0031] In the figure: 1. teaching model body; 2. blood vessel model; 3. trigger component; 30. detection box; 31. support seat; 32. vibration sensor; 4. simulation component; 40. distribution box; 41. drainage hole; 42. connecting hole; 43. adjustment member; 44. infusion tube; 45. micro pump; 46. liquid storage tank; 47. latex pad; 48. sealing cylinder; 49. rotating groove; 410. docking hole; 411. rotating member; 412. connecting plate; 413. stirring rod; 414. transmission gear ring; 415. transmission member; 416. reset member; 417. transmission gear; 418. transmission rod; 419. blade; 420. rotating ring; 421. vortex spring; 5. moving member; 50. connecting rod; 51. adjustment gear; 52. adjustment ring; 53. connecting frame; 54. adjustment groove; 55. rubber tooth; 56. recessed part; 57. raised part. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] See also Figures 1 to 12 The present invention provides a technical solution: a vascular intervention teaching and training model, including a teaching model body 1; also including a vascular model 2, the vascular model 2 is connected to the teaching model body 1; a trigger component 3, the trigger component 3 is located outside the vascular model 2, the trigger component 3 monitors the impact strength of the catheter on the inner wall of the blood vessel when the trainee pushes the catheter; a simulation component 4, the simulation component 4 is located outside the vascular model 2, the trigger component 3 is connected to the simulation component 4, after the trigger component 3 monitors the impact strength of the catheter on the inner wall of the vascular model 2, the simulation component 4 adjusts the inner diameter of the vascular model 2 when the detected impact strength reaches a first threshold, and adjusts the viscosity of the flowing liquid in the blood vessel when the detected impact strength reaches a second threshold.

[0035] Since different vascular interventional surgeries have different requirements for the moving speed of the catheter, and the moving speed of the catheter in the blood vessel is also affected by many factors, including the patient's specific condition and vascular condition, the doctor needs to choose different pushing speeds according to the actual situation when pushing the catheter. The moving speed of the catheter on the inner wall of the blood vessel is different, and the impact force of the catheter on the inner wall of the blood vessel is also different, so the degree of damage to the inner wall of the blood vessel is also different. The present application utilizes the different impact forces of catheters with different moving speeds on the inner wall of the blood vessel model 2 when they move on the inner wall of the blood vessel model 2, and the impact force of the catheter on the inner wall of the blood vessel model 2 at different pushing speeds is monitored in real time by the trigger component 3. For example, before use, the pushing speed of the catheter is set to 8 mm / s as the threshold, and the trigger component 3 enters the impact force on the inner wall of the blood vessel model 2 at this catheter moving speed as the first threshold, and when the pushing speed of the catheter reaches 15 mm / s, the impact force of the catheter on the inner wall of the blood vessel model 2 is the second threshold. After the setting is completed, the doctor can practice the skills of pushing the catheter in vascular interventional surgery and monitor the impact force of the catheter on the inner wall of the blood vessel model 2 by the trigger component 3.

[0036] If the doctor pushes the catheter at a speed less than 8 mm / s, the simulation component 4 does not work, and the doctor pushes the catheter normally to move in the blood vessel model 2 .

[0037] If the doctor pushes the catheter at a speed between 8mm / s and 15mm / s, the first threshold of the trigger component 3 is triggered, and the simulation component 4 controls a certain part of the blood vessel model 2 to contract, thereby simulating the situation in actual surgery where the catheter moves too fast in the blood vessel, causing vascular spasm. The reduction in the inner diameter of the blood vessel model 2 increases the resistance to the movement of the catheter, reminding the doctor that the catheter pushing speed exceeds the training requirements.

[0038] If the doctor pushes the catheter at a speed greater than 15 mm / s, the second threshold of the trigger component 3 is triggered, and the simulation component 4 injects a liquid with a higher viscosity than the original flowing liquid into the blood vessel model 2 to simulate the situation in actual surgery where the blood vessels are damaged and thrombus is produced due to the rapid movement of the catheter. The newly injected viscous liquid also increases the resistance of the doctor to the movement of the catheter.

[0039] By training doctors on the feel of pushing catheters, doctors' ability to perceive changes in blood resistance in blood vessels when pushing catheters is improved. In actual surgery, doctors can sense changes in blood pressure in blood vessels, detect emergencies in a timely manner and respond accordingly, thereby reducing patients' surgical risks and complication rates.

[0040] Since the movement speed of the catheter in the blood vessel is also affected by many factors, including the patient's specific condition and blood vessel condition, the doctor can be trained to push the catheter stably by adjusting the impact force threshold detected by the trigger component 3 at different movement speeds.

[0041] The trigger component 3 includes a detection box 30 fixedly connected to the outside of the blood vessel model 2, and a liquid, such as water, is arranged on the inner wall of the detection box 30. A support seat 31 is fixedly connected to the outside of the detection box 30, and the support seat 31 is fixedly connected to the surface of the teaching model main body 1. A vibration sensor 32 is fixedly connected to the surface of the detection box 30, and the support seat 31 wraps the vibration sensor 32 on the inner wall to prevent the trainee from observing the position of the vibration sensor 32, so as to avoid the trainee actively controlling the catheter to move closer to the position away from the vibration sensor 32 when pushing the catheter to the detection position, resulting in the weakening of the vibration signal detected by the vibration sensor 32.

[0042] Since the blood vessel model 2 is generally made of flexible material, when the catheter moves in the blood vessel model 2, the catheter impacts the inner wall of the blood vessel model 2. The blood vessel model 2 transmits the vibration generated by the impact to the liquid in the detection box 30. The liquid can be water. The vibration sensor 32 detects the vibration of the liquid in real time and compares it with the first threshold and the second threshold set before the test, and controls the simulation component 4 to work according to the gear position reached.

[0043] The simulation component 4 includes a distribution box 40 fixedly connected to the outside of the blood vessel model 2, a latex pad 47 fixedly connected to the inside of the distribution box 40, the latex pad 47 is annular and fits the surface of the blood vessel model 2, the distribution box 40 is fixedly connected to the surface of the teaching model body 1, a plurality of drainage holes 41 are opened on the inner wall of the distribution box 40, a plurality of connecting holes 42 are opened on the surface of the blood vessel model 2, the connecting holes 42 correspond to the drainage holes 41 one by one, an adjusting part 43 for controlling the closing and opening of the drainage holes 41 is provided on the inner wall of the distribution box 40, an infusion tube 44 is connected to the outside of the distribution box 40, the end of the infusion tube 44 away from the distribution box 40 is connected to a micro pump 45, the outside of the micro pump 45 is connected to a liquid storage tank 46, and the liquid storage tank 46 is fixedly connected to the surface of the teaching model body 1.

[0044] When the impact force generated on the inner wall of the blood vessel model 2 during the movement of the catheter exceeds the first threshold, the vibration sensor 32 controls the micro pump 45 to work. The liquid in the liquid storage tank 46 is the same liquid as the liquid flowing in the blood vessel model 2, but the liquid in the liquid storage tank 46 has a higher viscosity. When the micro pump 45 works, the liquid in the liquid storage tank 46 is injected into the distribution box 40 through the infusion tube 44. When the liquid flows into the distribution box 40, it drives the adjustment member 43 to rotate. However, since the impact force only reaches the first threshold, the adjustment member 43 does not make the drainage hole 41 and the connecting hole 42 dock. The liquid injected into the distribution box 40 increases the pressure in the distribution box 40, thereby squeezing the distribution box 40. The latex pad 47 on the inner wall of the matching box 40 squeezes the surface of the blood vessel model 2 to change the inner diameter of the blood vessel model 2, thereby simulating the situation in actual surgery where the catheter moves too fast in the blood vessel, causing vascular spasm. The reduction in the inner diameter of the blood vessel model 2 increases the resistance to the movement of the catheter by the doctor, reminding the doctor that the catheter pushing speed exceeds the training requirements, training the doctor's hand feel for pushing the catheter, and improving the doctor's perception of changes in blood resistance in the blood vessel when pushing the catheter. In actual surgery, by sensing the changes in blood in the blood vessel, the doctor can promptly discover emergencies and respond accordingly, thereby reducing the patient's surgical risks and complication rates.

[0045] When the impact force on the inner wall of the blood vessel model 2 during the movement of the catheter exceeds the second threshold, the vibration sensor 32 controls the micro pump 45 to work for a longer time. Under the action of the micro pump 45, more liquid in the liquid storage tank 46 is injected into the distribution box 40. When the liquid enters the distribution box 40, it drives the adjustment member 43 to work. The adjustment member 43 makes the drainage hole 41 dock with the connecting hole 42 to cooperate with the injection of high-viscosity liquid into the blood vessel model 2 through the connecting hole 42, so as to simulate the situation in actual surgery where the blood vessel is damaged and thrombus is produced due to the excessively fast movement speed of the catheter. The newly injected viscous liquid also increases the resistance of the doctor to push the catheter to move, trains the doctor's hand feel for pushing the catheter, and improves the doctor's perception of changes in blood resistance in the blood vessel when pushing the catheter. In actual surgery, by sensing the changes in blood in the blood vessel, the doctor can promptly discover sudden situations and respond accordingly, thereby reducing the patient's surgical risks and complication rates.

[0046] The adjusting member 43 includes a closing cylinder 48. A rotating groove 49 is provided on the inner wall of the dispensing box 40. The closing cylinder 48 is rotatably connected to the inner wall of the rotating groove 49. A plurality of docking holes 410 are provided on the surface of the closing cylinder 48. A rotating member 411 is provided at the end of the closing cylinder 48 to drive the closing cylinder 48 to rotate.

[0047] After the liquid enters the distribution box 40 through the infusion tube 44, it drives the rotating part 411 to work, and the rotating part 411 drives the closing cylinder 48 to rotate, and the closing cylinder 48 drives the docking hole 410 to rotate. When the docking hole 410 has not rotated to between the connecting hole 42 and the drainage hole 41, as the liquid continues to enter the distribution box 40, the liquid squeezes the latex pad 47 on the inner wall of the distribution box 40, causing the latex pad 47 to deform and squeeze the blood vessel model 2, thereby changing the inner diameter of the blood vessel model 2. When the docking hole 410 rotates to between the connecting hole 42 and the drainage hole 41, the liquid in the distribution box 40 is injected into the blood vessel model 2 through the drainage hole 41 and the connecting hole 42, so that the high-viscosity liquid in the distribution box 40 enters the blood vessel model 2, increasing the viscosity of the liquid at the trigger position.

[0048] The rotating member 411 includes a connecting plate 412 fixedly connected to one end of the closed tube 48, the connecting plate 412 is rotatably connected to the inner wall of the distribution box 40, a plurality of stirring rods 413 are fixedly connected to the outer side of the connecting plate 412, a transmission gear ring 414 is fixedly connected to the side of the connecting plate 412 close to the closed tube 48, a transmission member 415 is provided on the inner side of the transmission gear ring 414 for driving the transmission gear ring 414 to rotate, and a reset member 416 is provided on the side of the connecting plate 412 away from the closed tube 48 for driving the connecting plate 412 to reset.

[0049] As the liquid enters the distribution box 40, the entering liquid drives the transmission member 415 to work, the transmission member 415 drives the transmission gear ring 414 to rotate, the transmission gear ring 414 drives the connecting plate 412 to rotate, the connecting plate 412 drives the stirring rod 413 to rotate to coordinate the stirring and mixing of the static liquid in the distribution box 40 with the injected liquid, and at the same time, the connecting plate 412 drives the closing cylinder 48 to rotate to coordinate the position of the adjustment of the docking hole 410. The rotation of the connecting plate 412 allows the reset member 416 to store energy. When the liquid is no longer injected into the distribution box 40, the reset member 416 drives the connecting plate 412 to reset, and the reset of the connecting plate 412 causes the closing cylinder 48 to reset.

[0050] The transmission member 415 includes a transmission gear 417 meshing with the transmission gear ring 414, a transmission rod 418 is fixedly connected to the outside of the transmission gear 417, the transmission rod 418 is rotatably connected to the inner wall of the distribution box 40, and a plurality of blades 419 are fixedly connected to the outside of the transmission rod 418, and the blades 419 are located below the infusion tube 44.

[0051] After the liquid is injected into the distribution box 40, the liquid pushes the blade 419 to rotate, the blade 419 drives the transmission rod 418 to rotate, the transmission rod 418 drives the transmission gear 417 to rotate, and the transmission gear 417 drives the outer meshing transmission gear 417 to rotate to cooperate with the position of the docking hole 410.

[0052] The reset member 416 includes a rotating ring 420 fixedly connected to the connecting plate 412 , a vortex spring 421 is fixedly connected to the inner side of the rotating ring 420 , and the vortex spring 421 is fixed to the inner wall of the distribution box 40 .

[0053] When liquid is injected into the distribution box 40, the connecting plate 412 rotates to contract the vortex spring 421. When liquid is no longer injected, the vortex spring 421 in the contracted state drives the connecting plate 412 to rotate in the opposite direction to cooperate with the sealing tube 48 to reset.

[0054] Embodiment 2

[0055] In the second embodiment, other structures remain unchanged. What is different from the first embodiment is that a moving part 5 for changing the position of the vibration sensor 32 on the surface of the detection box 30 is provided on the outer side of the transmission rod 418. The moving part 5 includes a connecting rod 50 fixedly connected to the transmission rod 418, an adjusting gear 51 is fixedly connected to the outer side of the connecting rod 50, an adjusting ring 52 is provided on the outer side of the adjusting gear 51, the adjusting ring 52 is rotatably connected to the inner wall of the distribution box 40, one end of the adjusting ring 52 passing through the inner wall of the distribution box 40 is fixedly connected to a connecting frame 53, the connecting frame 53 is connected to the vibration sensor 32, an adjusting groove 54 slidably connected to the vibration sensor 32 is opened on the surface of the detection box 30, and a plurality of rubber teeth 55 are fixedly connected to one end of the adjusting ring 52 close to the adjusting gear 51, and the rubber teeth 55 are provided with a recessed portion 56 and a protruding portion 57.

[0056] After the vibration sensor 32 is triggered, the vibration sensor 32 controls the micro pump 45 to work, and the micro pump 45 injects the viscous liquid in the liquid storage tank 46 into the distribution box 40. The injected liquid impacts the blade 419, so that the transmission rod 418 rotates, and the transmission rod 418 drives the connecting rod 50 to rotate, and the connecting rod 50 drives the adjusting gear 51 to rotate. When the adjusting gear 51 rotates, it squeezes the recessed part 56 of the rubber tooth 55, thereby driving the adjusting ring 52 to rotate, and the rotation of the adjusting ring 52 drives the connecting frame 53 to rotate, and the connecting frame 53 drives the vibration sensor 32 to rotate on the surface of the detection box 30, and the vortex spring 421 drives the vibration sensor 32 to rotate. When the movable sealing cylinder 48 is reset, the adjusting gear 51 rotates in the opposite direction and squeezes against the protruding portion 57 of the rubber tooth 55, causing the rubber tooth 55 to deform, that is, the adjusting gear 51 can only drive the adjusting ring 52 to rotate in one direction. Therefore, when the sealing cylinder 48 is reset, the position of the vibration sensor 32 after moving will not be reset, thereby changing the position of the vibration sensor 32 on the surface of the detection box 30, so that the vibration sensor 32 changes its position every time it is triggered, and the changed position is irregular, which prevents the trainee from finding the position of the vibration sensor 32 after a long period of training, artificially affecting the triggering of the vibration sensor 32, and reducing the training effect.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vascular intervention teaching and training model, comprising: Teaching model body (1); The invention is characterized in that: it also comprises a blood vessel model (2), wherein the blood vessel model (2) is connected to the teaching model body (1); A trigger component (3), the trigger component (3) being located outside the blood vessel model (2), and the trigger component (3) monitoring the impact strength of the catheter on the inner wall of the blood vessel when the trainee pushes the catheter; A simulation component (4), the simulation component (4) is located outside the blood vessel model (2), the trigger component (3) is connected to the simulation component (4), and after the trigger component (3) detects the impact strength of the catheter on the inner wall of the blood vessel model (2), the simulation component (4) adjusts the inner diameter of the blood vessel model (2) when the detected impact strength reaches a first threshold, and adjusts the viscosity of the liquid flowing in the blood vessel when the detected impact strength reaches a second threshold.

2. The vascular intervention teaching and training model according to claim 1, characterized in that: The trigger assembly (3) comprises a detection box (30) fixedly connected to the outside of the blood vessel model (2); a liquid is provided on the inner wall of the detection box (30); a support seat (31) is fixedly connected to the outside of the detection box (30); the support seat (31) is fixedly connected to the surface of the teaching model body (1); and a vibration sensor (32) is fixedly connected to the surface of the detection box (30).

3. The vascular intervention teaching and training model according to claim 2, characterized in that: The simulation component (4) comprises a distribution box (40) fixedly connected to the outside of the blood vessel model (2), the distribution box (40) being fixedly connected to the surface of the teaching model body (1), the inner wall of the distribution box (40) being provided with a plurality of drainage holes (41), the surface of the blood vessel model (2) being provided with a plurality of communication holes (42), the communication holes (42) being in one-to-one correspondence with the drainage holes (41), the inner wall of the distribution box (40) being provided with an adjustment member (43) for controlling the closing and opening of the drainage holes (41), the outer side of the distribution box (40) being connected to an infusion tube (44), the end of the infusion tube (44) being remote from the distribution box (40) being connected to a micro pump (45), the outer side of the micro pump (45) being connected to a liquid storage tank (46), the liquid storage tank (46) being fixedly connected to the surface of the teaching model body (1).

4. The vascular intervention teaching and training model according to claim 3, characterized in that: A latex pad (47) is fixedly connected to the inner side of the distribution box (40); the latex pad (47) is annular and fits the surface of the blood vessel model (2).

5. The vascular intervention teaching and training model according to claim 3, characterized in that: The regulating member (43) comprises a closed tube (48), the inner wall of the dispensing box (40) is provided with a rotation groove (49), the closed tube (48) is rotatably connected to the inner wall of the rotation groove (49), a plurality of docking holes (410) are provided on the surface of the closed tube (48), and a rotating member (411) is provided at the end of the closed tube (48) for driving the closed tube (48) to rotate.

6. The vascular intervention teaching and training model according to claim 5, characterized in that: The rotating member (411) comprises a connecting plate (412) fixedly connected to one end of the closed cylinder (48); the connecting plate (412) is rotatably connected to the inner wall of the distribution box (40); a plurality of stirring rods (413) are fixedly connected to the outer side of the connecting plate (412); a transmission gear ring (414) is fixedly connected to the side of the connecting plate (412) close to the closed cylinder (48); a transmission member (415) is provided on the inner side of the transmission gear ring (414) for driving the transmission gear ring (414) to rotate; and a reset member (416) is provided on the side of the connecting plate (412) away from the closed cylinder (48) for driving the connecting plate (412) to reset.

7. The vascular intervention teaching and training model according to claim 6, characterized in that: The transmission member (415) comprises a transmission gear (417) meshing with a transmission gear ring (414); a transmission rod (418) is fixedly connected to the outside of the transmission gear (417); the transmission rod (418) is rotatably connected to the inner wall of the distribution box (40); a plurality of blades (419) are fixedly connected to the outside of the transmission rod (418); the blades (419) are located below the infusion tube (44).

8. The vascular intervention teaching and training model according to claim 6, characterized in that: The reset member (416) comprises a rotating ring (420) fixedly connected to the connecting plate (412), a vortex spring (421) being fixedly connected to the inner side of the rotating ring (420), and the vortex spring (421) being fixed to the inner wall of the distribution box (40).

9. The vascular intervention teaching and training model according to claim 7, characterized in that: A moving member (5) for changing the position of the vibration sensor (32) on the surface of the detection box (30) is provided on the outer side of the transmission rod (418), the moving member (5) comprising a connecting rod (50) fixedly connected to the transmission rod (418), an adjusting gear (51) fixedly connected to the outer side of the connecting rod (50), an adjusting ring (52) provided on the outer side of the adjusting gear (51), the adjusting ring (52) being rotatably connected to the inner wall of the distribution box (40), one end of the adjusting ring (52) passing through the inner wall of the distribution box (40) being fixedly connected to a connecting frame (53), the connecting frame (53) being connected to the vibration sensor (32), an adjusting groove (54) slidably connected to the vibration sensor (32) being provided on the surface of the detection box (30), and a plurality of rubber teeth (55) being fixedly connected to one end of the adjusting ring (52) close to the adjusting gear (51).

10. The vascular intervention teaching and training model according to claim 9, characterized in that: The rubber tooth (55) is provided with a recessed portion (56) and a raised portion (57).

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