Medical simulation puncture needle training device

Abstract

The present invention relates to the technical field of puncture needle training, and specifically discloses a medical simulation puncture needle training device, including: a simulation arm, a simulation puncture member is provided on the end face of the simulation arm, and a simulation member is fixed inside the simulation puncture member, and a simulation cavity is opened inside the simulation member; further including: a simulation skin simulation component and a driving component, the simulation skin simulation component is arranged inside the simulation cavity, the driving component is arranged on the side of the simulation skin simulation component, the simulation skin simulation component includes a skin layer one arranged inside the simulation cavity, and a skin layer two is arranged at the bottom of the skin layer one, and the driving component works to adjust the tension between the skin layer one and the skin layer two to simulate the skin states of patients of various ages; realizing the adjustment operations of the elasticity degree of the skin layer two, the wrinkling degree of the skin layer one, and the bending degree of the simulated blood vessels, so that the trainer can experience the real touch of the skin of different ages on the same model and conduct targeted intensive training.

Description

Technical Field

[0001] The present invention relates to the technical field of puncture needle training, and more specifically to a medical simulation puncture needle training device. Background Art

[0002] A puncture needle training simulation model is a tool for medical training, aiming to provide a realistic puncture practice environment for medical staff to help them improve their puncture skills. The simulation training model usually simulates specific parts of the human body, such as the arm, and can simulate the elasticity, toughness, and resistance of real human tissues, enabling the trainer to obtain an experience close to reality when practicing punctures. Most arm models are composed of simulated skin, simulated blood vessels, subcutaneous tissue simulation layer, bone simulation structure, and a base or bracket. The simulated skin is the outermost layer of the model, usually made of materials such as silicone rubber. The subcutaneous tissue simulation layer is located between the simulated skin and the simulated blood vessels and is usually made of materials such as sponge and gel to simulate the texture and thickness of human subcutaneous tissue.

[0003] Currently, there are generally puncture needle simulation arm models for the elderly and adults. The skin of the elderly is loose, dry, and has decreased elasticity, while the skin of adults is relatively firm and elastic. However, existing fixed models are difficult to accurately present this difference, and trainers cannot experience the real touch of the skin of different age groups on the same model, which is not conducive to accurately mastering the puncture strength and angle for people between the elderly and adults. Since the skin state cannot be adjusted according to different age groups, it is difficult for trainers to conduct differentiated puncture exercises according to the skin characteristics of people between the elderly and adults, which is not conducive to improving the puncture skills for different populations in actual clinical operations, and is not easy to accurately simulate real scenarios. As a result, when facing real patients, trainers may make operation mistakes or be unskilled due to the lack of adaptability to different skin states, which limits the comprehensiveness and in-depthness of teaching content and is not conducive to the systematic learning of puncture knowledge for different patient groups by students. Therefore, we propose a medical simulation puncture needle training device. Summary of the Invention

[0004] The purpose of the present invention is to provide a medical simulation puncture needle training device to solve the problems proposed in the above background art, such as it being difficult for trainers to conduct differentiated puncture exercises according to the skin characteristics of people between the elderly and adults, which is not conducive to improving the puncture skills for different populations in actual clinical operations, being unable to simulate diverse skin states, and not being easy to accurately simulate real scenarios.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A medical simulation puncture needle training device, comprising: a simulated arm, a simulated puncture member is arranged on the end face of the simulated arm, and a simulation member is fixed inside the simulated puncture member, and a simulation cavity is opened inside the simulation member.

[0006] It further includes: a simulation skin simulation component and a driving component. The simulation skin simulation component is arranged inside the simulation cavity, and the driving component is arranged on the side of the simulation skin simulation component. The simulation skin simulation component includes a first skin layer arranged inside the simulation cavity, and a second skin layer is arranged at the bottom of the first skin layer. The driving component works to adjust the tension between the first skin layer and the second skin layer to simulate the skin states of patients of various ages;

[0007] A blood vessel simulation component and a control component. The blood vessel simulation component is arranged at the bottom of the simulation skin simulation component. The blood vessel simulation component includes a simulated blood vessel arranged at the bottom of the second skin layer. The control component is connected to the driving component to control the bending degree of the simulated blood vessel through the control component to simulate the blood vessel tortuosity states of patients of various ages;

[0008] A disorder component. The disorder component is arranged on the end face of the simulation puncture piece to randomly and disorderly control the skin state and the blood vessel tortuosity state through the disorder component.

[0009] Wherein, both sides of the first skin layer are connected to a connecting belt. One end of the connecting belt away from the first skin layer is connected to the second skin layer, and a guiding rod is pressed against the top of the connecting belt.

[0010] Wherein, a toothed bar is fixed to the inner wall of the connecting belt, and a first gear is arranged on the inner wall of the toothed bar. The first gear is fixed to the outer wall of a first rotating rod, and support rings are fixed to both ends of the outer wall of the first rotating rod.

[0011] Wherein, the driving component includes a motor fixed to one end face of a group of rotating rods. The other end of the first rotating rod is fixed with a second gear. A third gear is meshed on the side of the second gear. The center of the third gear is fixed with a second rotating rod, and the end face of the second rotating rod is rotatably connected to the inner wall of the simulation cavity. A belt is sleeved on the surface of the second rotating rod, and the other end of the belt is sleeved on the outer wall of the first rotating rod.

[0012] Wherein, the simulated blood vessel is arranged on the surface of a connecting seat, and a pressing member is pressed against the surface of the simulated blood vessel, and the pressing members are alternately pressed against the surface of the simulated blood vessel.

[0013] Wherein, a slider is fixed to the bottom of the pressing member, and the slider is slidably connected inside a sliding cavity. The sliding cavity is opened inside the connecting seat. A metal sheet is fixed to the surface of the slider, and an electromagnet one, an electromagnet two, and an electromagnet three are sequentially fixed to the inner wall of the sliding cavity.

[0014] Wherein, the control component includes a third rotating rod arranged inside the second gear, and a pressing block is fixed to the outer wall of the third rotating rod. A switch seat is fixed to the inner wall of the second gear, and a first pressing switch, a second pressing switch, and a third pressing switch are sequentially distributed on the inner wall of the switch seat.

[0015] Wherein, the surface of the pressing block is set to be arc-shaped, and the surfaces of the first pressing switch, the second pressing switch, and the third pressing switch are set to be arc-shaped.

[0016] Among them, the disordered components include a protective box fixed to the end face of the simulation puncture piece. A first rotating seat is rotatably connected to the outer ring of the inner wall of the protective box. The first rotating seat is evenly provided with a first trigger cavity. A second rotating seat is rotatably connected to the inner ring of the inner wall of the protective box. A second trigger cavity is provided inside the second rotating seat. A connecting cylinder is fixed to the center of the inner wall of the protective box. A goal opening is provided at the bottom of the connecting cylinder. A first trigger switch is fixed to the inner wall of the second trigger cavity. A second trigger switch is fixed to the inner wall of the first trigger cavity.

[0017] Among them, a feeding cylinder is fixed to the inner wall of the connecting cylinder. A feeding opening is provided at the bottom of the feeding cylinder. A ball outlet seat is fixed to the bottom of the protective box. A trigger ball is arranged inside the ball outlet seat. A first rotating disc is fixed to the surface of the first rotating seat. A first rotating ring is fixed to the surface of the first rotating disc. A second rotating disc is fixed to the surface of the second rotating seat. A second rotating ring is fixed to the surface of the second rotating disc.

[0018] The present invention has at least the following beneficial effects:

[0019] The adjustment operation of the elasticity degree of the second skin layer and the fold degree of the first skin layer is realized. The skin elasticity and fold degree of a real human body vary from person to person and are affected by age factors. Changing these characteristics of the simulation skin can more accurately simulate the skin conditions of different individuals. These complex puncture scenarios can be simulated, enabling the trainer to encounter various possible situations during the training process, making the trainer better adapt to various changes in actual operations, improving the authenticity and closeness of the training. Different skin elasticity and fold degrees will affect the feel and resistance feedback during puncture. The trainer needs to continuously feel and adapt to these changes, learn to adjust the puncture strength, angle, and depth according to different skin states, thereby improving the accuracy and success rate of puncture. This kind of training helps the trainer cultivate a sensitive feel and accurate judgment, and better cope with various skin conditions encountered in actual operations. Different skin conditions may expose different weak links of the trainer. For example, some trainers may tend to use excessive force when dealing with skin with less elasticity, and may have inaccurate puncture angles when dealing with skin with more folds. Through this diversified training and evaluation, it can help the trainer discover their own deficiencies and conduct targeted intensive training to further improve the training effect.

[0020] Implement the adjustment operation of the bending degree of the simulated blood vessels. There are blood vessels with different degrees of bending in the actual human body. Randomly changing the bending degree of the simulated blood vessels can enable the trainer to face various bending situations during the training process, exercise their ability to accurately judge the needle insertion angle, depth, and direction, so as to meet the puncture requirements of blood vessels with different bends, thereby improving the puncture accuracy. Different degrees of blood vessel bending will result in different feelings when puncturing. The trainer needs to practice repeatedly to feel the contact feedback between the puncture needle and the blood vessel wall under different bending situations, better master the puncture strength, avoid puncturing too deep or too shallow, reduce the damage to the blood vessels, and can more realistically simulate various blood vessel conditions encountered in clinical practice, enabling the trainer to adapt to the complex situations that may occur in actual operations in advance and improving their operation ability in a real environment.

[0021] The design of randomly adjusting the elasticity degree of the second skin layer, the wrinkle degree of the first skin layer, and the bending degree of the simulated blood vessels allows the trainer to experience the real touch of the skin of different age groups on the same model, which is conducive to accurately mastering the puncture strength and angle for the population between the elderly and adults. It is possible to conduct differentiated puncture exercises according to the skin characteristics of the population between the elderly and adults, which is conducive to improving the puncture skills for different populations in actual clinical operations, accurately simulating the real scene, and facilitating the systematic learning of puncture knowledge for different patient groups by students.

[0022] The synchronous changes in skin elasticity, wrinkle degree, and blood vessel bending make the control of resistance, angle, and depth during puncture more complex. The trainer needs to comprehensively consider these factors and precisely adjust the strength, angle, and depth of needle insertion to accurately hit the blood vessel and avoid damaging the surrounding tissues, thereby significantly improving the accuracy and success rate of needle insertion. Different combinations of skin elasticity, wrinkles, and blood vessel bending will produce unique tactile feedback. Through repeated practice, the trainer can more keenly perceive the contact state between the puncture needle and the tissue in various situations, better master the puncture strength and rhythm, and form a more delicate and accurate operating feel. The changes in skin elasticity and wrinkle degree are often closely related to the state of the blood vessels. For example, when the skin is loose, the blood vessels may be more prone to bending. Synchronously adjusting these parameters can reflect this physiological correlation, helping the trainer better understand the overall response of the human physiological structure during the puncture process and improving the ability to predict various situations in actual operations. Brief Description of the Drawings

[0023] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0024] Figure 2 It is a partial structural schematic diagram of the simulation cavity of the present invention;

[0025] Figure 3 It is a partial structural schematic diagram of the simulated skin simulation component of the present invention;

[0026] Figure 4 Partial structural schematic diagram of Skin Layer 1 of the present invention;

[0027] Figure 5 Partial structural schematic diagram of Rotating Rod 1 of the present invention;

[0028] Figure 6 Partial structural schematic diagram of the Control Component of the present invention;

[0029] Figure 7 Partial structural schematic diagram of the Blood Vessel Simulation Component of the present invention;

[0030] Figure 8 Partial structural sectional view of the Connection Base of the present invention;

[0031] Figure 9 Partial structural schematic diagram of the Disorder Component of the present invention;

[0032] Figure 10 Partial structural sectional view of the Delivery Tube and the Ball Outlet Seat of the present invention;

[0033] Figure 11 Partial structural sectional view of Rotating Base 1 and Rotating Base 2 of the present invention;

[0034] Figure 12 For the present invention Figure 11 Enlarged schematic diagram of Area A in

[0035] In the figure: 11, simulation arm; 12, simulation puncture piece; 13, simulation piece; 14, simulation cavity; 2, simulation skin simulation component; 21, Skin Layer 1; 22, Skin Layer 2; 23, guide rod; 24, connecting belt; 25, toothed bar; 26, Gear 1; 27, Rotating Rod 1; 28, support ring; 3, drive component; 31, motor; 32, Gear 2; 33, Gear 3; 34, Rotating Rod 2; 35, belt; 4, blood vessel simulation component; 41, simulation blood vessel; 42, pressing piece; 43, slider; 44, connection base; 45, sliding cavity; 46, metal sheet; 47, Electromagnet 1; 48, Electromagnet 2; 49, Electromagnet 3; 5, control component; 51, Rotating Rod 3; 52, pressing block; 53, switch base; 54, pressing switch 1; 55, pressing switch 2; 56, pressing switch 3; 6, disorder component; 61, protection box; 62, Rotating Base 1; 63, trigger cavity 1; 64, Rotating Base 2; 65, trigger cavity 2; 66, connecting cylinder; 67, delivery tube; 68, delivery port; 69, goal port; 71, trigger switch 1; 72, trigger switch 2; 73, ball outlet seat; 74, trigger ball; 75, rotating disk 1; 76, rotating ring 1; 77, rotating disk 2; 78, rotating ring 2. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1

[0038] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a medical simulation puncture needle training device, including: a simulation arm 11, a simulation puncture member 12 is arranged on the end face of the simulation arm 11, and a simulation member 13 is fixed inside the simulation puncture member 12, and a simulation cavity 14 is opened inside the simulation member 13;

[0039] It further includes: a simulation skin simulation component 2 and a driving component 3. The simulation skin simulation component 2 is arranged inside the simulation cavity 14, and the driving component 3 is arranged on the side of the simulation skin simulation component 2. The simulation skin simulation component 2 includes a first skin layer 21 arranged inside the simulation cavity 14, and a second skin layer 22 is arranged at the bottom of the first skin layer 21. By operating the driving component 3 to adjust the tension between the first skin layer 21 and the second skin layer 22, the skin states of patients of various ages are simulated. The skin elasticity and wrinkle degree of a real human body vary from person to person and are affected by age factors. By changing these characteristics of the simulation skin, the skin conditions of different individuals can be more accurately simulated, and these complex puncture scenarios can be simulated, enabling the trainer to encounter various possible situations during the training process, enabling the trainer to better adapt to various changes in actual operations, and improving the authenticity and closeness of the training;

[0040] A blood vessel simulation component 4 and a control component 5. The blood vessel simulation component 4 is arranged at the bottom of the simulation skin simulation component 2. The blood vessel simulation component 4 includes a simulated blood vessel 41 arranged at the bottom of the second skin layer 22. The control component 5 is connected to the driving component 3, and the bending degree of the simulated blood vessel 41 is controlled through the control component 5 to simulate the blood vessel tortuosity states of patients of various ages;

[0041] The disordered component 6 is arranged on the end face of the simulated puncture piece 12. By randomly and disorderly controlling the skin state and blood vessel tortuosity state through the disordered component 6, the actual human blood vessels have different degrees of curvature. Changing the curvature degree of the simulated blood vessel 41 enables the trainer to face various bending situations during training, exercises their ability to accurately judge the needle insertion angle, depth, and direction, so as to meet the puncture requirements of different curved blood vessels, thereby improving the puncture accuracy. Different blood vessel curvature degrees will result in different handfeel during puncture. The trainer needs to repeatedly practice to feel the contact feedback between the puncture needle and the blood vessel wall under different bending situations, better master the puncture force, avoid puncturing too deep or too shallow, and reduce the damage to the blood vessels.

[0042] Both sides of the first skin layer 21 are connected to the connecting belt 24. One end of the connecting belt 24 away from the first skin layer 21 is connected to the second skin layer 22. A guiding rod 23 is pressed against the top of the connecting belt 24. The guiding rod 23 presses against the surface of the connecting belt 24, making the first skin layer 21 and the second skin layer 22 fit closely, imitating the state of the outer layer of the patient's skin. The simulated outer layer of the skin is composed of the first skin layer 21 and the second skin layer 22. The first skin layer 21 imitates the wrinkling degree of the skin, and the second skin layer 22 imitates the elastic layer of the skin. When the second skin layer 22 is stretched, its elasticity decreases. The second skin layer 22 can be a thermochromic liquid crystal elastomer. When the thermochromic liquid crystal elastomer is stretched, the liquid crystal molecular chains inside it will be oriented and arranged along the stretching direction. This orientation causes the interaction between the molecular chains to change, and the originally relatively regular liquid crystal phase structure is damaged, and the elasticity of the material decreases accordingly. At the same time, due to the orientation and structural changes of the molecular chains, the material is more likely to exhibit crack propagation when subjected to external forces, thus showing the characteristic of increased brittleness. When the stretching external force is removed and the thermochromic liquid crystal elastomer is heated to a certain temperature, usually above its phase transition temperature, the liquid crystal molecular chains obtain sufficient energy and will return to a more disordered state, and the interaction between the molecular chains will also return to the level before stretching. At this time, the elasticity of the material gradually recovers, the brittleness decreases, and finally it basically returns to the state before stretching, realizing the restoration of shape and performance.

[0043] Different skin elasticity and wrinkling degrees will affect the handfeel and resistance feedback during puncture. The trainer needs to continuously feel and adapt to these changes, learn to adjust the puncture force, angle, and depth according to different skin states, thereby improving the puncture accuracy and success rate. This kind of training helps the trainer cultivate a sensitive handfeel and accurate judgment ability, and better cope with various skin conditions encountered in actual operations.

[0044] Different skin conditions may expose different weaknesses of the trainer. For example, some trainers may exert excessive force when dealing with less elastic skin, while inaccurate puncture angles may occur when dealing with skin with more folds. Through this diverse training and assessment, it can help trainers identify their deficiencies and conduct targeted intensive training to further improve the training effect.

[0045] The inner wall of the connecting belt 24 is fixed with a toothed bar 25, and a first gear 26 is arranged on the inner wall of the toothed bar 25. The first gear 26 is fixed on the outer wall of the first rotating rod 27. Support rings 28 are fixed at both ends of the outer wall of the first rotating rod 27. Through the design of the first gear 26 and the toothed bar 25, when the first rotating rod 27 rotates, it can drive the connecting belt 24 to move, thereby facilitating the movement of the first skin layer 21 and the second skin layer 22.

[0046] The driving component 3 includes a motor 31 fixed on the end face of one group of the first rotating rods 27, and a second gear 32 is fixed at the other end of the first rotating rod 27. A third gear 33 is meshed on the side of the second gear 32. The center of the third gear 33 is fixed with a second rotating rod 34, and the end face of the second rotating rod 34 is rotatably connected to the inner wall of the simulation cavity 14. A belt 35 is sleeved on the surface of the second rotating rod 34, and the other end of the belt 35 is sleeved on the outer wall of the first rotating rod 27. Through the design of the second gear 32, the third gear 33, the second rotating rod 34 and the belt 35, the two groups of the first rotating rods 27 rotate in opposite directions, thereby facilitating the stretching of the first skin layer 21 and the compression of the second skin layer 22. By changing the stretching length of the first skin layer 21, the elastic state of the first skin layer 21 is changed. By changing the extrusion and compression of the second skin layer 22, the degree of folds of the second skin layer 22 is changed.

[0047] When it is necessary to adjust the degree of folds of the first skin layer 21 and the elastic degree of the second skin layer 22, first turn on the working switch of the motor 31. The motor 31 works and drives the first rotating rod 27 to rotate. The rotation of the first rotating rod 27 drives the second gear 32, the support ring 28 and the first gear 26 to rotate synchronously. The rotation of the second gear 32 drives the third gear 33 to rotate. The rotation of the third gear 33 drives the second rotating rod 34 to rotate synchronously. The rotation of the second rotating rod 34 drives the other group of the first rotating rods 27 to rotate through the belt 35, so that the two groups of the first rotating rods 27 rotate in opposite directions. One group of the first rotating rods 27 rotates clockwise, and the other group of the first rotating rods 27 rotates counterclockwise. The first gear 26 rotates, causing the toothed bar 25 to move. The toothed bar 25 drives the connecting belt 24 to move synchronously. When the two groups of the first rotating rods 27 rotate in opposite directions, the two connecting belts 24 move and pull the second skin layer 22, causing the second skin layer 22 to be stretched. After the second skin layer 22 is stretched, its elasticity decreases. At the same time, the first skin layer 21 is squeezed, and the degree of folds changes, realizing the adjustment operation of the elastic degree of the second skin layer 22 and the degree of folds of the first skin layer 21.

[0048] The simulated blood vessel 41 is arranged on the surface of the connecting seat 44. A pressing member 42 is pressed against the surface of the simulated blood vessel 41, and the pressing members 42 are alternately pressed against the surface of the simulated blood vessel 41. Through the alternate pressing of the adjacent pressing members 42 on the simulated blood vessel 41, the simulated blood vessel 41 is designed to be bent, and the bending degree of the simulated blood vessel 41 is adjusted by changing the position of the pressing member 42.

[0049] A slider 43 is fixed to the bottom of the pressing member 42, and the slider 43 is slidably connected to the inside of a sliding cavity 45. The sliding cavity 45 is opened inside the connecting seat 44. A metal sheet 46 is fixed to the surface of the slider 43. Electromagnets 47, 48, and 49 are sequentially fixed to the inner wall of the sliding cavity 45. The positions of the electromagnets 47 and 49 inside two adjacent sliding cavities 45 are opposite.

[0050] It can more realistically simulate various blood vessel conditions encountered in clinical practice, enabling trainees to adapt in advance to the complex situations that may occur in actual operations and improving their operation ability in a real environment.

[0051] The control component 5 includes a third rotating rod 51 arranged inside the second gear 32. A pressing block 52 is fixed to the outer wall of the third rotating rod 51. A switch seat 53 is fixed to the inner wall of the second gear 32. A first pressing switch 54, a second pressing switch 55, and a third pressing switch 56 are sequentially distributed on the inner wall of the switch seat 53. Through the design of the first pressing switch 54, the second pressing switch 55, and the third pressing switch 56, during the rotation of the second gear 32, the energization states of the electromagnets 47, 48, and 49 are synchronously adjusted, so that the bending state of the blood vessel corresponds to the skin elasticity and the degree of wrinkles. When the patient is older, the skin may show phenomena such as reduced elasticity, increased degree of wrinkles, and increased bending degree state of the blood vessel. Through the design of the first pressing switch 54, the second pressing switch 55, and the third pressing switch 56, during the adjustment of the skin elasticity and the degree of wrinkles, the bending degree of the simulated blood vessel 41 is synchronously adjusted.

[0052] The synchronous changes in skin elasticity, wrinkle degree, and blood vessel bending degree make the control of resistance, angle, and depth during puncture more complex. Trainers need to comprehensively consider these factors and precisely adjust the force, angle, and depth of needle insertion to accurately hit the simulated blood vessel 41 and avoid damaging the surrounding tissues, thereby significantly improving the accuracy and success rate of needle insertion. Different combinations of skin elasticity, wrinkles, and the bending of the simulated blood vessel 41 will produce unique tactile feedback. Through repeated practice, trainers can more keenly perceive the contact state between the puncture needle and tissues in various situations, better master the puncture force and rhythm, and form a more delicate and accurate operating feel. The changes in skin elasticity and wrinkle degree are often closely related to the state of the simulated blood vessel 41. For example, when the skin is loose, the simulated blood vessel 41 may be more prone to bending. Synchronously adjusting these parameters can reflect this physiological correlation and help trainers better understand the overall response of the human physiological structure during puncture, improving the ability to predict various situations in actual operations.

[0053] The surface of the pressing block 52 is set to be arc-shaped, and the surfaces of the first pressing switch 54, the second pressing switch 55, and the third pressing switch 56 are set to be arc-shaped. The arc-shaped design facilitates the pressing block 52 to press the first pressing switch 54, the second pressing switch 55, and the third pressing switch 56.

[0054] When the second gear 32 rotates, it synchronously drives the first pressing switch 54, the second pressing switch 55, and the third pressing switch 56 to rotate. At this time, the pressing block 52 gradually presses on the surface of the first pressing switch 54, the second pressing switch 55, or the third pressing switch 56. The moving position of the pressing member 42 is adjusted according to the pressing position of the pressing block 52. When the first pressing switch 54 is pressed, the first electromagnet 47 is energized to generate magnetism and attract the metal sheet 46. When the second pressing switch 55 is pressed, the second electromagnet 48 is energized and generates magnetism to attract the metal sheet 46. When the third pressing switch 56 is pressed, the third electromagnet 49 is energized and generates magnetism to attract the metal sheet 46. After the metal sheet 46 is adsorbed, the metal sheet 46 drives the slider 43 to move synchronously. The slider 43 slides inside the sliding cavity 45, and the slider 43 drives the pressing member 42 to move. The pressing member 42 presses the simulated blood vessel 41 to change the bending degree of the simulated blood vessel 41. When the third electromagnet 49 is energized, the bending degree of the simulated blood vessel 41 is the largest. When the first electromagnet 47 is energized, the bending degree of the simulated blood vessel 41 is the smallest.

[0055] Embodiment 2

[0056] Please refer to Figures 9 to 12, the disordered component 6 includes a protection box 61 fixed to the end face of the simulation puncture piece 12. The outer ring of the inner wall of the protection box 61 is rotatably connected with a first rotating seat 62. The first rotating seat 62 is evenly provided with a first trigger cavity 63. The inner ring of the inner wall of the protection box 61 is rotatably connected with a second rotating seat 64. The inside of the second rotating seat 64 is provided with a second trigger cavity 65. The center of the inner wall of the protection box 61 is fixed with a connecting cylinder 66. The bottom of the connecting cylinder 66 is provided with a goal opening 69. The inner wall of the second trigger cavity 65 is fixed with a first trigger switch 71. The inner wall of the first trigger cavity 63 is fixed with a second trigger switch 72. Through the design of multiple groups of first trigger switches 71 and multiple groups of second trigger switches 72, it is convenient for the trigger ball 74 to be randomly triggered, controlling multiple gears of the motor 31 and the energization states of the first electromagnet 47, the second electromagnet 48 and the third electromagnet 49, so as to randomly change the elastic degree and wrinkle degree of the outer layer of the simulation skin, and randomly change the bending degree of the simulation blood vessel 41.

[0057] Randomly changing the characteristics of the simulation skin can enable the trainer to face various unexpected situations during the training process, prompting them to learn to quickly analyze and judge, and adjust the operation method in a timely manner. The cultivation of this adaptability is crucial for dealing with emergencies in actual medical scenarios, which can reduce puncture errors caused by changes in skin conditions and improve the trainer's operation level in complex situations.

[0058] When the trainer faces the simulation blood vessels 41 with different random bending degrees, they need to continuously adjust their operation methods and thinking modes to adapt to this individual difference. This kind of training helps to cultivate the flexibility and adaptability of the trainer, enabling them to better provide safe and effective puncture services for different patients.

[0059] Synchronously and randomly adjusting multiple parameters increases the uncertainty and complexity of the training, simulating various unexpected situations and individual differences that may occur in actual clinical practice. When facing these changes, the trainer needs to quickly analyze and make corresponding adjustments, thereby effectively cultivating their adaptability and decision-making ability, enabling them to calmly handle various complex situations in actual operations.

[0060] The inner wall of the connecting cylinder 66 is fixed with a delivery cylinder 67. The bottom of the delivery cylinder 67 is provided with a delivery opening 68. The bottom of the protection box 61 is fixed with a ball outlet seat 73. The inside of the ball outlet seat 73 is provided with a trigger ball 74. The surface of the first rotating seat 62 is fixed with a first rotating disc 75. The surface of the first rotating disc 75 is fixed with a first rotating ring 76. The surface of the second rotating seat 64 is fixed with a second rotating disc 77. The surface of the second rotating disc 77 is fixed with a second rotating ring 78, which is convenient for the delivery and removal of the trigger ball 74 and conducive to the reuse of the trigger ball 74.

[0061] When it is necessary to randomly control the degree of wrinkling of the first skin layer 21 and the degree of elasticity of the second skin layer 22, first rotate the second rotating ring 78 and the first rotating ring 76. The number of rotation turns of the second rotating ring 78 and the first rotating ring 76 is random. Subsequently, the triggering ball 74 is put into the inside of the delivery cylinder 67. Under the action of gravity, the triggering ball 74 enters the inside of the connecting cylinder 66 through the delivery port 68, and then randomly drops into the inside of one of the goal ports 69. Under the action of gravity, it drops into the inside of the second triggering cavity 65 and presses against the first triggering switch 71. After the first triggering switch 71 is pressed, it receives a signal. After the signal is transmitted to the controller, the controller controls the working gear of the motor 31. The design of multiple groups of the first triggering switches 71 corresponds to multiple groups of the working gears of the motor 31, realizing the random control of the working gear of the motor 31, and thus realizing the random control of the degree of wrinkling of the first skin layer 21 and the degree of elasticity of the second skin layer 22. Under the action of gravity, the triggering ball 74 continues to drop, and the triggering ball 74 drops into the inside of the first triggering cavity 63. Subsequently, it presses against the second triggering switch 72. After the second triggering switch 72 is pressed, it receives a signal. After the signal is transmitted to the controller, the controller controls the energization states of the first electromagnet 47, the second electromagnet 48, and the third electromagnet 49. The design of multiple groups of the second triggering switches 72 corresponds to the energization states of the first electromagnet 47, the second electromagnet 48, and the third electromagnet 49, realizing the random control of the position of the slider 43, and thus realizing the random control of the bending degree of the simulated blood vessel 41. The triggering ball 74 continues to move downward and drops into the inside of the ball outlet seat 73.

[0062] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Medical simulation puncture needle training device, comprising: Simulation arm (11), a simulation puncture member (12) is provided on the end face of the simulation arm (11), and a simulation member (13) is fixed inside the simulation puncture member (12), and a simulation cavity (14) is opened inside the simulation member (13); It is characterized in that: it further includes: A simulation skin simulation component (2) and a driving component (3), the simulation skin simulation component (2) is arranged inside the simulation cavity (14), the driving component (3) is arranged on the side of the simulation skin simulation component (2), the simulation skin simulation component (2) includes a first skin layer (21) arranged inside the simulation cavity (14), and a second skin layer (22) is arranged at the bottom of the first skin layer (21). By the operation of the driving component (3), the tension between the first skin layer (21) and the second skin layer (22) is adjusted to simulate various skin states of the patient. Both sides of the first skin layer (21) are connected to a connecting belt (24), and one end of the connecting belt (24) far from the first skin layer (21) is connected to the second skin layer (22), and a guide rod (23) is pressed against the top of the connecting belt (24); A blood vessel simulation component (4) and a control component (5), the blood vessel simulation component (4) is arranged at the bottom of the simulation skin simulation component (2), the blood vessel simulation component (4) includes a simulated blood vessel (41) arranged at the bottom of the second skin layer (22), and the control component (5) is connected to the driving component (3). By the control component (5), the bending degree of the simulated blood vessel (41) is controlled to simulate various blood vessel tortuous states of the patient; A disorder component (6), the disorder component (6) is arranged on the end face of the simulation puncture member (12), and the skin state and blood vessel tortuous state are randomly and disorderly controlled by the disorder component (6).

2. The medical simulation puncture needle training device according to claim 1, wherein: Tooth strips (25) are fixed on the inner wall of the connecting belt (24), and a first gear (26) is arranged on the inner wall of the tooth strips (25). The first gear (26) is fixed on the outer wall of a first rotating rod (27), and support rings (28) are fixed at both ends of the outer wall of the first rotating rod (27).

3. The medical simulation puncture needle training device according to claim 2, characterized in that: The driving component (3) includes a motor (31) fixed on the end face of one group of the first rotating rods (27), and a second gear (32) is fixed at the other end of the first rotating rod (27). A third gear (33) is meshed on the side of the second gear (32). The center of the third gear (33) is fixed with a second rotating rod (34), and the end face of the second rotating rod (34) is rotatably connected to the inner wall of the simulation cavity (14). A belt (35) is sleeved on the surface of the second rotating rod (34), and the other end of the belt (35) is sleeved on the outer wall of the first rotating rod (27).

4. The medical simulation puncture needle training device according to claim 1, characterized in that: The simulated blood vessel (41) is arranged on the surface of a connecting seat (44), and a pressing member (42) is pressed against the surface of the simulated blood vessel (41), and the pressing members (42) are alternately pressed against the surface of the simulated blood vessel (41).

5. The medical simulation puncture needle training device according to claim 4, characterized in that: A slider (43) is fixed to the bottom of the pressing member (42), and the slider (43) is slidably connected inside a sliding cavity (45). The sliding cavity (45) is formed inside a connecting seat (44). A metal sheet (46) is fixed to the surface of the slider (43). Inside the inner wall of the sliding cavity (45), an electromagnet one (47), an electromagnet two (48), and an electromagnet three (49) are successively fixed.

6. The medical simulation puncture needle training device according to claim 3, characterized in that: The control assembly (5) includes a rotating rod three (51) disposed inside the gear two (32), and a pressing block (52) is fixed to the outer wall of the rotating rod three (51). A switch seat (53) is fixed to the inner wall of the gear two (32). Inside the inner wall of the switch seat (53), a pressing switch one (54), a pressing switch two (55), and a pressing switch three (56) are successively distributed.

7. The medical simulation puncture needle training device according to claim 6, wherein: The surface of the pressing block (52) is arc-shaped. The surfaces of the pressing switch one (54), the pressing switch two (55), and the pressing switch three (56) are arc-shaped.

8. The medical simulation puncture needle training device according to claim 1, wherein: The disordered assembly (6) includes a protection box (61) fixed to the end face of the simulation puncture member (12). The outer ring of the inner wall of the protection box (61) is rotatably connected to a rotating seat one (62). The rotating seat one (62) is evenly provided with a triggering cavity one (63). The inner ring of the inner wall of the protection box (61) is rotatably connected to a rotating seat two (64). A triggering cavity two (65) is formed inside the rotating seat two (64). A connecting cylinder (66) is fixed to the center of the inner wall of the protection box (61). A goal inlet (69) is formed at the bottom of the connecting cylinder (66). A triggering switch one (71) is fixed to the inner wall of the triggering cavity two (65). A triggering switch two (72) is fixed to the inner wall of the triggering cavity one (63).

9. The medical simulation puncture needle training device according to claim 8, characterized in that: A feeding cylinder (67) is fixed to the inner wall of the connecting cylinder (66). A feeding port (68) is formed at the bottom of the feeding cylinder (67). A ball outlet seat (73) is fixed to the bottom of the protection box (61). A triggering ball (74) is disposed inside the ball outlet seat (73). A rotating disc one (75) is fixed to the surface of the rotating seat one (62). A rotating ring one (76) is fixed to the surface of the rotating disc one (75). A rotating disc two (77) is fixed to the surface of the rotating seat two (64). A rotating ring two (78) is fixed to the surface of the rotating disc two (77).

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