Lever positioning technique simulation training auxiliary device

Abstract

The invention relates to the technical field of medical instruments, in particular to a lever positioning manipulation simulation training auxiliary device which comprises a simulation dummy and an arm guard, the arm guard is used for being worn on a physician training arm, and the simulation dummy is used for conducting simulation training on a lever positioning manipulation; the simulation dummy is provided with a detection assembly used for detecting the accuracy of manipulation simulation training of a physician. The detection assembly comprises a controller and a plurality of liquid injection cavities, and the liquid injection cavities are embedded in the thigh part; a liquid storage cavity is formed in the waist part, and one side, close to the waist part, of the liquid injection cavity is communicated with the liquid storage cavity; the liquid injection cavity and the liquid storage cavity are each internally provided with a liquid level sensor, and the controller is used for receiving liquid level signals of the liquid level sensors and judging whether the simulation dummy is in a horizontal state or not based on the liquid level signals and judging whether the field angle, namely the trigger angle, of the lumbar vertebra backward stretching to the maximum resistance is reached or not in the training process. Through interaction of the liquid injection cavity and various sensors, multi-level acquisition and judgment are carried out, and the accuracy and consistency of training are improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a lever positioning technique simulation training auxiliary device. Background Art

[0002] Lumbar disc herniation (LDH) refers to a disease with low back and leg pain as the main symptom, which is caused by external force causing rupture of the annulus fibrosus and protrusion of the nucleus pulposus from the ruptured part, based on changes in the biomechanical structure of the lumbar spine or degenerative changes in the lumbar disc, and then compressing the soft tissues such as the spinal nerve roots. Studies have found that when LDH patients experience clinical symptoms such as low back and leg pain and lower limb numbness, their lumbar curvature and lumbosacral angle will also change due to the imbalance of the lumbar biomechanical structure.

[0003] Traditional Chinese medicine manipulation is one of the main non-surgical treatments for LDH, but the forms of the techniques used in clinical practice vary with varying efficacy. Lever positioning manipulation is an innovative technique with proven clinical efficacy in treating LDH. The main operating steps are to have the patient flex his knees and hips and cross his lower limbs; the operator's right elbow acts on the affected vertebra in the waist and holds the patient's ankle joints with both hands. Through the lever arm, the lumbar spine is flexed and extended, and the lower limbs and ankle joints are pulled upward and backward with force; when the lumbar spine is overextended to a certain resistance, a quick pull is made with "clever force and inch strength" to reach the trigger angle, that is, the lumbar spine is extended to the angle of maximum resistance, so that the lumbar disc herniation and nerve root are separated or retracted, the physiological curvature of the lumbar spine is reshaped, and the stability of the lumbar spine is restored.

[0004] In the prior art, before the lever positioning technique is applied clinically, trainees usually perform simulation training on normal human bodies. During the training process, if the technique is not mastered properly, it is easy to cause harm to the normal human body. Currently, there is a lack of corresponding equipment for lever positioning technique training. Although there is a method of using dummies for simulation training, there are also problems of inconvenience in operation and lack of accuracy, which leads to the inability of trainees to accurately grasp the key points and skills of the lever positioning technique during the practice, thus affecting the training effect.

[0005] In summary, how to solve the problems of inconvenient operation and insufficient accuracy in the existing technology of using dummies for simulation training has become a difficult problem that needs to be solved urgently in current technical training and promotion. Therefore, it is necessary to invent a lever positioning technique simulation training auxiliary device. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a lever positioning technique simulation training auxiliary device, which performs multi-level collection and judgment through the interaction between the liquid injection cavity and various sensors, thereby helping to improve the accuracy and consistency of training.

[0007] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a lever positioning technique simulation training auxiliary device, including a simulation dummy and an arm guard, the arm guard is used to be worn on the doctor's training arm, and the simulation dummy is used to simulate the training of the lever positioning technique; the simulation dummy includes a waist and symmetrically arranged legs, the legs include thighs and calves, and the thighs are connected to the waist with a ball joint on one side away from the calf; the arm guard includes a contact part located at the doctor's elbow joint and a movable part located at the doctor's hand, and the movable part is used to grasp the intersection of the calf; the simulation dummy is provided with a detection component for detecting the accuracy of the doctor's technique during simulation training.

[0008] The detection component includes a controller and several liquid injection cavities, which are embedded and installed on the thigh; a liquid storage cavity is opened in the waist, and the injection cavity is connected to the liquid storage cavity on the side close to the waist; liquid level sensors are fixedly connected to the liquid injection cavity and the liquid storage cavity, and the controller is used to receive the liquid level signal of the liquid level sensor, and judge whether the simulated dummy is in a horizontal state and whether the lumbar spine is extended to the maximum resistance angle during training based on the liquid level signal.

[0009] Pressure sensors are provided on the waist, contact part and movable part. The controller is used to receive the pressure signal from the pressure sensor and judge whether the doctor's operation is accurate based on the pressure signal. Laser sensors are also fixedly connected on both sides of the lumbar spine. The controller is used to control the operation of the laser sensor and receive the laser signal from the laser sensor, and judge the position deviation of the arm guard and the force point deviation based on the laser signal. The legs are also provided with adjustment components for adjusting the length of the legs and expansion components for adjusting the size of the legs.

[0010] The technical principles of the above scheme are as follows: By wearing the arm guard on the doctor's training arm, the lever positioning technique is simulated and trained on the simulated dummy. Since the thigh is embedded with a liquid injection cavity, the liquid injection cavity is connected to the liquid storage cavity at the waist, and there are liquid level sensors in the liquid injection cavity and the liquid storage cavity, it is possible to judge whether the simulated dummy is horizontal through the liquid level signal, and whether the lumbar spine is extended to the maximum resistance angle during the simulated pulling and resetting process based on the flow rate of the reciprocating liquid. And by receiving the pressure signal of the pressure sensor, the accuracy of the doctor's operation is judged based on the pressure change. At the same time, the laser signal of the laser sensor is used to assist in judging the position and distance of the arm guard during the doctor's training, so as to determine whether the force application point is accurate. The length and size of the legs can also be adjusted according to the different body shapes during each training by adjusting the components and the expansion components.

[0011] The above scheme has the following beneficial effects: 1. The present invention can accurately reflect the position change of the legs through the flow of liquid in the injection cavity and the liquid storage cavity, as well as the real-time monitoring of the liquid level sensor. When the simulation dummy is in a horizontal state, the water level in all cavities should remain consistent; and when performing simulation training and resetting actions, the change in water level can help identify whether the preset lumbar extension angle to the maximum resistance has been reached. In this process, the accuracy of the simulation training can be improved based on the results of multiple acquisitions of liquid level signals.

[0012] 2. The present invention utilizes pressure sensors distributed in key areas to collect information about the force applied by the physician when performing lever positioning techniques. With the help of high-precision position information provided by the laser sensor, it can ensure that the deviation between the arm guard movement and the expected target during training is minimized. The interaction of various sensors, through multi-level collection and judgment, helps to improve the accuracy and consistency of training.

[0013] 3. The present invention provides an adjustment component and an expansion component, so that the leg length and size of the simulation dummy can be adjusted according to different training requirements; and personalized feedback and suggestions are provided based on the specific performance of each trainee to help them improve their skills in a targeted manner.

[0014] Furthermore, the adjustment assembly includes several shells, a first drive member and a first screw, and the controller is used to control the operation of the first drive member; the shells are embedded and installed in the thigh and calf, the first drive members are fixedly connected to the shells, and the output shafts of the first drive members are coaxially fixedly connected to the first screw; the ends of the first screws away from the first drive members extend into the shells and are threadedly engaged with the first nut seats, the first nut seats are fixedly connected with the first sliding rods, and the ends of the first sliding rods away from the first nut seats extend to the outside of the shells and are slidably engaged with the inner wall of the shells.

[0015] Several layers of second sliding rods are provided inside the first sliding rod, and the second sliding rods are slidably matched from the outer layer to the inner layer in sequence, and the second sliding rods located in the outermost layer are slidably matched with the inner side walls of the first sliding rods; the second sliding rods are fixedly connected with second nut seats, and the second nut seats are threadedly matched with second screws; the second screws are threadedly matched from the inner layer to the outer layer in sequence, and the first screws are threadedly matched with the second screws in the innermost layer; the second screws are rotatably connected to the first nut seats and the second nut seats adjacent to them, and the ends of the second sliding rods located in the innermost layer away from the second nut seats are fixedly connected to the inner side walls of the thigh and calf adjacent to them.

[0016] Beneficial effect: The first driving member drives the first screw to rotate. Since the first screw thread is matched with the first nut seat, the first nut seat is fixedly connected with the first sliding rod, and the first sliding rod is slidably matched with the inner wall of the shell, when the first screw rotates, it can drive the first nut seat to move linearly, and the first nut seat drives the first sliding rod to move. Since the first screw is matched with the innermost second screw thread, the second screws are matched with threads in sequence from the inner layer to the outer layer; therefore, when the first screw rotates, it can drive the innermost second screw to rotate outward, and when the innermost second screw rotates, it drives the outer second screw to rotate outward in sequence.

[0017] Since the second screw rods are rotatably connected to the first nut seat and the second nut seat adjacent thereto, the second nut seats are fixedly connected to the second sliding rods, and the second screw rods are threadedly matched with the second nut seats, when the second screw rods rotate, the second nut seats threadedly matched therewith can be driven to move linearly, and the movement of the second nut seats drives the second sliding rods fixedly connected thereto to move. The extension or shortening is achieved by a plurality of second sliding rods, and when the extension or shortening is achieved, the length of the thigh or calf is adjusted, so as to meet a variety of usage scenarios and improve the practicality of the device.

[0018] Furthermore, the expansion component includes an air circuit system and several air bag layers, and the controller is used to control the operation of the air circuit system; the air bag layers are embedded and installed in the thigh and calf, and the air bag layers are connected to the air circuit system; the air bag layers are opened with air outlet holes, and the air outlet holes and the connection points between the air bag layers and the air circuit system are connected with one-way solenoid valves, and the controller is used to control the operation of the one-way solenoid valves.

[0019] Beneficial effects: By inflating several airbag layers through the air circuit system and using a one-way solenoid valve to supply and deflate the airbag layers, the size of the simulated dummy's legs can be adjusted to adapt to the muscle and fat distribution of patients with different body shapes, providing a more realistic touch, thereby improving the authenticity and effectiveness of training.

[0020] Furthermore, a bracket for placing the simulation dummy is provided at the bottom of the simulation dummy, and a rotating component for rotating the simulation dummy is provided on the bracket.

[0021] Beneficial effect: The design of the stent can make physician training more time-saving and labor-saving.

[0022] Furthermore, the rotating assembly includes a second driving member, a gear and a ring gear, and the controller is used to control the operation of the second driving member; the second driving member is fixedly connected to the side of the bracket close to the waist, and the output shaft of the second driving member is coaxially fixedly connected to the gear; the gear and the ring gear are meshed with each other, and the ring gear is fixedly connected to the outer wall of the waist.

[0023] Beneficial effect: The second driving member drives the gear to rotate. Since the gear and the gear ring are meshed with each other and the gear ring is fixedly connected to the outer wall of the waist, the gear ring can be driven to rotate by the rotation of the gear, and the gear ring drives the simulation dummy to rotate together. This method is used to increase convenience, so that doctors can more easily adjust the simulation dummy to different angles and positions, making the training closer to the actual clinical environment.

[0024] Furthermore, a tilt sensor is fixedly connected to the ball joint connection between the thigh and the waist; the controller is used to receive the angle signal of the tilt sensor, and judge whether the doctor's training has reached the lumbar spine extension angle to the maximum resistance based on the angle signal.

[0025] Beneficial effects: The inclination sensor can accurately measure the angle change of the thigh relative to the waist in real time, which provides accurate data support for judging whether the doctor's operation has reached the predetermined lumbar extension angle to the maximum resistance. During the training process, the inclination sensor can continuously monitor the angle change and provide dynamic feedback information to help the doctor adjust the operation in time. This multi-level analysis and judgment can further improve the accuracy of doctor training.

[0026] Furthermore, the thigh part is connected to the calf part by a ball joint.

[0027] Beneficial effects: The ball joint connection allows the thigh and calf to move freely in multiple directions to adapt to different body positions and postures, making training more diverse.

[0028] Furthermore, air pressure sensors are fixedly connected inside the airbag layers; the controller is used to receive air pressure signals from the air pressure sensors and simulate feedback data of human power based on the air pressure signals.

[0029] Beneficial effects: The air pressure sensor can accurately measure the air pressure changes in the airbag layer in real time and provide detailed feedback data, which helps to determine whether the pressure applied by the physician during the operation is appropriate.

[0030] Furthermore, the controller is electrically connected to a display screen for displaying a liquid level signal, a pressure signal, a laser signal, an angle signal and an air pressure signal, and the display screen is fixedly connected to the bracket.

[0031] Beneficial effects: Through the data dynamically updated on the display screen, doctors can instantly understand the posture changes, applied pressure and position deviations of the simulated dummy and make corresponding adjustments.

[0032] Furthermore, the simulation dummy and the arm guard are both made of elastic materials, and the elastic material is selected from one or more of silicone, polyurethane foam, TPE, latex, rubber, gel and thermosetting elastomer.

[0033] Beneficial effects: Elastic materials can produce appropriate deformation and recovery when subjected to force, simulating the dynamic response of human tissue, allowing doctors to obtain more realistic feedback during the operation.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is an axonometric diagram of the lever positioning technique simulation training auxiliary device in an embodiment of the present invention.

[0036] Figure 2 It is an axonometric view of the guard arm in an embodiment of the present invention.

[0037] Figure 3 It is an axonometric cross-sectional view of the adjustment assembly in an embodiment of the present invention.

[0038] The figure marks in the drawings of the specification include: 1. simulation dummy; 2. arm guard; 3. waist; 4. thigh; 5. calf; 6. contact part; 7. moving part; 8. liquid injection cavity; 9. shell; 10. first motor; 11. first screw; 12. first nut seat; 13. first sliding rod; 14. second sliding rod; 15. second nut seat; 16. second screw; 17. bracket; 18. second motor; 19. gear; 20. gear ring; 21. display screen. DETAILED DESCRIPTION

[0039] The following is further described in detail through specific implementation methods: Embodiment 1:

[0040] As attached Figure 1-Figure 3 As shown: a lever positioning technique simulation training auxiliary device, including a simulation dummy 1 and an arm guard 2, the arm guard 2 is used to be worn on the doctor's training arm, and the simulation dummy 1 is used to simulate the lever positioning technique training; the simulation dummy 1 includes a waist 3 and symmetrically arranged legs, the legs include a thigh 4 and a calf 5, the left side of the thigh 4 is connected to the waist 3 by a ball joint, and the thigh 4 is connected to the calf 5 by a ball joint; the ball joint connection allows the thigh 4 and the calf 5 to move freely in multiple directions to adapt to different body positions and postures, making the training more diversified.

[0041] Combined with Figure 2 As shown, the arm guard 2 includes a contact portion 6 located at the doctor's elbow joint and a movable portion 7 located at the doctor's hand, and the movable portion 7 is used to grasp the intersection of the calf 5; the simulation dummy 1 is provided with a detection component for detecting the accuracy of the doctor's technique during simulation training.

[0042] The detection component includes a controller and a plurality of liquid injection cavities 8, and the liquid injection cavities 8 are all embedded and installed on the thigh 4; a liquid storage cavity is opened in the waist 3, and the liquid injection cavities 8 are connected to the liquid storage cavity; liquid level sensors are installed in the liquid injection cavity 8 and the liquid storage cavity, and the controller is used to receive the liquid level signal of the liquid level sensor, and judge whether the simulation dummy 1 is in a horizontal state and judge whether the lumbar spine is extended to the maximum resistance angle during training.

[0043] The waist 3, the contact part 6 and the movable part 7 are all screw-fixedly connected with pressure sensors, and the controller is used to receive the pressure signal of the pressure sensor and judge whether the doctor's operation is accurate based on the pressure signal; the waist 3 is also screw-fixedly connected with laser sensors on both sides of the spine, and the controller is used to control the operation of the laser sensor and receive the laser signal of the laser sensor, and judge the position deviation and force point deviation of the arm guard 2 based on the laser signal; the legs are also provided with adjustment components for adjusting the length of the legs and expansion components for adjusting the size of the legs.

[0044] Combined with Figure 3 As shown, the adjustment assembly includes a plurality of shells 9, a first driving member and a first screw 11. In this embodiment, the first driving member is a first motor 10, and the controller is used to control the operation of the first motor 10; the shells 9 are embedded and installed in the thigh part 4 and the calf part 5, the first motors 10 are fixedly connected with the shells 9 with bolts, and the output shafts of the first motors 10 are coaxially fixedly engaged with the first screw 11; the right ends of the first screws 11 extend into the shells 9 and are threadedly engaged with the first nut seats 12, the first nut seats 12 are fixedly engaged with the first sliding rods 13, and the right ends of the first sliding rods 13 extend to the outside of the shells 9 and are slidably engaged with the inner wall of the shells 9.

[0045] Several layers of second sliding rods 14 are provided in the first sliding rod 13, and the second sliding rods 14 are slidably matched from the outer layer to the inner layer in sequence, and the second sliding rods 14 located in the outermost layer are slidably matched with the inner side wall of the first sliding rod 13; the second sliding rods 14 are fixedly clamped with second nut seats 15, and the second nut seats 15 are threadedly matched with second screws 16; the second screws 16 are threadedly matched from the inner layer to the outer layer in sequence, and the first screws 11 are threadedly matched with the second screws 16 in the innermost layer; the second screws 16 are rotatably connected with the first nut seats 12 and the second nut seats 15 adjacent to them, and the right ends of the second sliding rods 14 located in the innermost layer are fixedly bonded to the inner side walls of the thigh 4 and the calf 5 adjacent to them.

[0046] Specifically, the first driving member drives the first screw 11 to rotate. Since the first screw 11 is threadedly matched with the first nut seat 12, the first nut seat 12 is fixedly connected with the first sliding rod 13, and the first sliding rod 13 is slidably matched with the inner wall of the housing 9, when the first screw 11 rotates, it can drive the first nut seat 12 to move linearly, and the movement of the first nut seat 12 drives the first sliding rod 13 to move. Since the first screw 11 is threadedly matched with the innermost second screw 16, and the second screws 16 are threadedly matched from the inner layer to the outer layer in sequence; therefore, when the first screw 11 rotates, it can drive the innermost second screw 16 to rotate outward, and when the innermost second screw 16 rotates, it sequentially drives the outer second screw 16 to rotate outward.

[0047] Since the second screw 16 is rotatably connected to the first nut seat 12 and the second nut seat 15 adjacent thereto, the second nut seat 15 is fixedly clamped to the second sliding rod 14, and the second screw 16 is threadedly engaged with the second nut seat 15, when the second screw 16 rotates, it can drive the second nut seat 15 threadedly engaged therewith to move linearly, and the movement of the second nut seat 15 drives the second sliding rod 14 fixedly clamped therewith to move.

[0048] Combined with Figure 3 As shown, when the first motor 10 rotates forward, the innermost second screw 16 can be driven to rotate through the first screw 11. When the innermost second screw 16 rotates, the outer second screw 16 is sequentially driven to rotate outward. When the outer second screw 16 rotates outward, the second sliding rod 14 is sequentially driven to the outside of the housing 9 through the second nut seat 15; otherwise, the second sliding rod 14 can be sequentially driven into the housing 9. Extension or shortening is achieved through a plurality of second sliding rods 14. When extending or shortening, the length of the thigh 4 or the calf 5 is adjusted to meet a variety of usage scenarios and improve the practicality of the device.

[0049] The expansion assembly includes an air circuit system and several air bag layers (not shown in the figure), and the controller is used to control the operation of the air circuit system; the air bag layers are embedded and installed in the thigh part 4 and the calf part 5, and the air bag layers are connected to the air circuit system; the air bag layers are provided with air outlet holes, and the air outlet holes and the connection points between the air bag layers and the air circuit system are connected with one-way solenoid valves, and the controller is used to control the operation of the one-way solenoid valves.

[0050] Specifically, several airbag layers are inflated through the air path system, and the one-way solenoid valve is used to supply air and deflate the airbag layers. The leg size of the simulation dummy 1 can be adjusted, and the muscle and fat distribution of patients with different body shapes can be adapted by inflating or deflating the air layer layer by layer, providing a more realistic touch, thereby improving the authenticity and effectiveness of the training.

[0051] The specific implementation process is as follows: first, before the simulation training begins, the arm guard 2 is worn on the doctor's training arm to perform simulated training on the lever positioning technique for the simulated dummy 1. Since the thighs 4 are embedded with injection cavities 8, the injection cavities 8 are connected to the liquid storage cavities of the waist 3, and there are liquid level sensors in the injection cavities 8 and the liquid storage cavities, it is possible to determine whether the simulated dummy 1 is horizontal through the liquid level signal, and whether the lumbar spine is extended to the maximum resistance angle (30 degrees) during the simulated pulling and resetting process based on the flow rate of the reciprocating liquid; when the liquid flow reaches the preset flow threshold, the controller determines that the lumbar spine is extended to the maximum resistance angle.

[0052] In addition, by receiving the pressure signal of the pressure sensor, the accuracy of the doctor's operation is judged based on the pressure change. During the doctor's operation, the pressure sensor monitors the pressure change in real time, and the receiving end processes and analyzes the received electrical signal to obtain a real-time pressure value. When the elbow joint is pressed vertically downward, according to the human body shape, its position and angle will affect the distribution and size of the pressure. Generally speaking, the closer the elbow joint is to the vertical position, the more uniform the pressure applied; and too large or too small an angle may lead to uneven pressure distribution or too large / too small pressure values. Based on the standard posture, combined with clinical experience and experimental data, an expected pressure range of 220N~310N is set. If the pressure exceeds or falls below the expected range, it is judged that the operation does not meet the training requirements. At the same time, the laser signal of the laser sensor is used to assist in judging the position and distance of the arm guard 2 during the doctor's training process, so as to determine whether the force application point is accurate. The length and size of the leg can also be adjusted according to the different body shapes during each training through the second sliding rod 14 and the air bag layer.

[0053] The present invention can accurately reflect the position change of the leg through the flow of liquid in the injection cavity 8 and the liquid storage cavity, and the real-time monitoring of the liquid level sensor. When the simulation dummy 1 is in a horizontal state, the water levels in all cavities remain consistent; and when performing simulation training and resetting actions, the change in water level can help identify whether the preset lumbar spine extension to the maximum resistance angle has been reached. In this process, the accuracy of the simulation training can be improved based on the results of multiple acquisitions of liquid level signals.

[0054] And by using pressure sensors distributed in key areas, the force information applied by the physician when performing lever positioning techniques can be collected. With the help of high-precision position information provided by the laser sensor, the deviation between the movement of the arm guard 2 and the expected target during training can be minimized. By using the interaction of various sensors, multi-level collection and judgment can help improve the accuracy and consistency of training. By adjusting the leg length and size of the simulation dummy 1, the size of the simulation dummy 1 can be adjusted according to different training needs; and personalized feedback and suggestions are provided based on the specific performance of each trainee to help them improve their skills in a targeted manner.

[0055] Embodiment 2:

[0056] As attached Figure 1 As shown, the difference from the above embodiment is that a bracket 17 for placing the simulation dummy 1 is further installed at the bottom of the simulation dummy 1 , and a rotating component for rotating the simulation dummy 1 is provided on the bracket 17 .

[0057] The rotating assembly includes a second driving member, a gear 19 and a ring gear 20. In this example, the second driving member is a second motor 18, and the controller is used to control the operation of the second motor 18; the second motor 18 is bolted and fixedly connected to the bracket 17 on the side close to the waist 3, and the output shaft of the second motor 18 is coaxially fixedly connected with the gear 19; the gear 19 and the ring gear 20 are meshed with each other, and the ring gear 20 is screwed and fixedly connected to the outer wall of the waist 3.

[0058] The specific implementation process is as follows: The design of the bracket 17 can make the doctor training more time-saving and labor-saving. The second motor 18 is used to drive the gear 19 to rotate. Since the gear 19 and the ring gear 20 are meshed with each other, and the ring gear 20 is screwed and fixed to the outer wall of the waist 3, the ring gear 20 can be driven to rotate by the rotation of the gear 19, and the ring gear 20 drives the simulation dummy 1 to rotate together. This method is used to increase convenience, so that doctors can more easily adjust the simulation dummy 1 to different angles and positions, making the training closer to the actual clinical environment.

[0059] Embodiment 3:

[0060] The difference from the above embodiment is that a tilt sensor is also screwed fixedly connected to the ball joint connection between the thigh 4 and the waist 3; the controller is used to receive the angle signal of the tilt sensor, and judge based on the angle signal whether the doctor's training has reached the lumbar extension angle to the maximum resistance.

[0061] The specific implementation process is as follows: The inclination sensor can measure the angle change of the thigh 4 relative to the waist 3 in real time and accurately, which provides accurate data support for judging whether the doctor's operation has reached the predetermined lumbar spine extension angle to the maximum resistance. During the training process, the inclination sensor can continuously monitor the angle change and provide dynamic feedback information to help the doctor adjust the operation in time. This multi-level analysis and judgment can further improve the accuracy of doctor training.

[0062] Embodiment 4:

[0063] The difference from the above embodiment is that an air pressure sensor is fixedly bonded inside the airbag layer; the controller is used to receive the air pressure signal of the air pressure sensor and simulate the feedback data of human power based on the air pressure signal.

[0064] The specific implementation process is as follows: The air pressure sensor can measure the air pressure changes in the airbag layer in real time and accurately, providing detailed feedback data, which helps to assist the doctor in judging whether the pressure applied during the operation is appropriate.

[0065] Embodiment 5:

[0066] The difference from the above embodiment is that the controller is electrically connected to a display screen 21 for displaying a liquid level signal, a pressure signal, a laser signal, an angle signal and an air pressure signal, and the display screen 21 is fixedly connected to the bracket 17 by screws.

[0067] The specific implementation process is as follows: through the data dynamically updated by the display screen 21, the doctor can instantly understand the posture changes, applied pressure and position deviation of the simulation dummy 1, and make corresponding adjustments.

[0068] Embodiment 6:

[0069] The difference from the above embodiment is that the simulation dummy 1 and the arm guard 2 are both made of elastic material, and the elastic material is selected from one or more of silicone, polyurethane foam, TPE, latex, rubber, gel and thermosetting elastomer. In this embodiment, silicone is selected.

[0070] The specific implementation process is as follows: the elastic material enables the simulation dummy 1 and the arm guard 2 to be adjusted to suit the arms of doctors and trainees of different body shapes. The elastic material can produce appropriate deformation and recovery when subjected to force, simulating the dynamic response of human tissue, so that the doctor can obtain more realistic feedback during the operation.

[0071] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A lever positioning technique simulation training auxiliary device, characterized in that: The device comprises a simulation dummy (1) and an arm guard (2), The arm guard (2) is used to be worn on the arm of a physician for training; the simulation dummy (1) is used to simulate the lever positioning technique; The simulation dummy (1) comprises a waist (3) and symmetrically arranged legs; the legs comprise a thigh (4) and a calf (5), and the side of the thigh (4) away from the calf (5) is connected to the waist (3) by a ball joint; The arm guard (2) comprises a contact portion (6) located at the doctor's elbow joint and a moving portion (7) located at the doctor's hand; the moving portion (7) is used to grasp the intersection of the calf (5); the simulation dummy (1) is provided with a detection component for detecting the accuracy of the doctor's manipulation during simulation training; The detection component comprises a controller and a plurality of liquid injection cavities (8), each of which is embedded and installed on the thigh (4); a liquid storage cavity is opened in the waist (3), and the side of the liquid injection cavity (8) close to the waist (3) is connected to the liquid storage cavity; a liquid level sensor is fixedly connected to the liquid injection cavity (8) and the liquid storage cavity, and the controller is used to receive a liquid level signal from the liquid level sensor, and judge whether the simulated dummy (1) is in a horizontal state and whether the lumbar spine is extended to the maximum resistance angle during training based on the liquid level signal; The waist (3), the contact part (6) and the moving part (7) are all provided with pressure sensors, and the controller is used to receive pressure signals from the pressure sensors and judge whether the physician's operation is accurate based on the pressure signals; Laser sensors are also fixedly connected to both sides of the spine of the waist (3), and the controller is used to control the operation of the laser sensor and receive the laser signal of the laser sensor, and judge the position deviation and force application point deviation of the arm guard (2) based on the laser signal; The legs are also provided with an adjusting component for adjusting the length of the legs and an expanding component for adjusting the size of the legs.

2. The lever positioning technique simulation training auxiliary device according to claim 1, characterized in that: The adjustment assembly comprises a plurality of housings (9), a first driving member and a first screw (11), and the controller is used to control the operation of the first driving member; The outer shell (9) is embedded and installed in the thigh (4) and the calf (5); the first driving member is fixedly connected to the outer shell (9); the output shaft of the first driving member is coaxially fixedly connected to the first screw rod (11); the end of the first screw rod (11) away from the first driving member extends into the outer shell (9) and is threadedly engaged with a first nut seat (12); the first nut seat (12) is fixedly connected with a first sliding rod (13); the end of the first sliding rod (13) away from the first nut seat (12) extends to the outside of the outer shell (9) and is slidably engaged with the inner wall of the outer shell (9); A plurality of layers of second sliding rods (14) are arranged inside the first sliding rod (13), and the second sliding rods (14) are slidably matched in sequence from the outer layer to the inner layer, and the second sliding rods (14) located in the outermost layer are slidably matched with the inner side wall of the first sliding rod (13); the second sliding rods (14) are fixedly connected with the second nut seats (15), and the second nut seats (15) are threadedly matched with the second screw rods (16); the second screw rods (16) are threadedly matched in sequence from the inner layer to the outer layer, and the first screw rods (11) are threadedly matched with the second screw rods (16) in the innermost layer; the second screw rods (16) are rotatably connected with the first nut seats (12) and the second nut seats (15) adjacent thereto, and the ends of the second sliding rods (14) located in the innermost layer away from the second nut seats (15) are fixedly connected with the inner side walls of the thigh (4) and the calf (5) adjacent thereto.

3. The lever positioning technique simulation training auxiliary device according to claim 2, characterized in that: The expansion assembly comprises an air circuit system and a plurality of air bag layers, and the controller is used to control the operation of the air circuit system; the air bag layers are embedded and installed in the thigh part (4) and the calf part (5), and the air bag layers are connected to the air circuit system; the air bag layers are provided with air outlet holes, and the air outlet holes and the connection points between the air bag layers and the air circuit system are connected with one-way solenoid valves, and the controller is used to control the operation of the one-way solenoid valves.

4. The lever positioning technique simulation training auxiliary device according to claim 3, characterized in that: A bracket (17) for placing the simulation dummy (1) is also provided at the bottom of the simulation dummy (1), and a rotating component for rotating the simulation dummy (1) is provided on the bracket (17).

5. The lever positioning technique simulation training auxiliary device according to claim 4, characterized in that: The rotating assembly comprises a second driving member, a gear (19) and a ring gear (20), and the controller is used to control the operation of the second driving member; The second driving member is fixedly connected to a side of the bracket (17) close to the waist (3), and the output shaft of the second driving member is coaxially fixedly connected to the gear (19); the gear (19) and the ring gear (20) are meshed with each other, and the ring gear (20) is fixedly connected to the outer wall of the waist (3).

6. The lever positioning technique simulation training auxiliary device according to claim 5, characterized in that: The ball joint connection between the thigh (4) and the waist (3) is also fixedly connected to an inclination sensor; the controller is used to receive an angle signal from the inclination sensor and judge, based on the angle signal, whether the physician has achieved the extension angle of the lumbar spine to the maximum resistance through training.

7. The lever positioning technique simulation training auxiliary device according to claim 6, characterized in that: The thigh part (4) is connected to the calf part (5) by a ball joint.

8. The lever positioning technique simulation training auxiliary device according to claim 7, characterized in that: The inside of the airbag layer is fixedly connected with an air pressure sensor; the controller is used to receive the air pressure signal of the air pressure sensor and simulate the feedback data of human power based on the air pressure signal.

9. The lever positioning technique simulation training auxiliary device according to claim 8, characterized in that: The controller is electrically connected to a display screen (21) for displaying a liquid level signal, a pressure signal, a laser signal, an angle signal and an air pressure signal, and the display screen (21) is fixedly connected to the bracket (17).

10. The lever positioning technique simulation training auxiliary device according to claim 9, characterized in that: The simulation dummy (1) and the arm guard (2) are both made of elastic material, and the elastic material is selected from one or more of silicone, polyurethane foam, TPE, latex, rubber, gel and thermosetting elastomer.

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