Spine correction device and system based on electromagnetic control

Abstract

The invention discloses a spine correction device and system based on electromagnetic control, and relates to the technical field of medical instruments. The correction device body comprises a control assembly, a fixing assembly connected with the correction device body, a growth rod assembly connected with the fixing assembly, a magnetic control assembly connected with the growth rod assembly and a sleeve assembly connected with the growth rod assembly. The device has the advantages that the nuts and the screws are inserted into the upper end and the lower end of the spine respectively to be fixed, the two pull rods are pulled to the opposite positions, the whole growth rod assembly is placed between the upper fixing assembly and the lower fixing assembly, clamping operation of the clamping plates on the growth rod assembly is completed under the action of the springs, and meanwhile the pull rods can clamp the growth rod assembly under the action of the springs. The clamping plate is driven to clamp an upper rod body and a lower rod body in the growth rod assembly, the distance can be automatically adjusted to a proper distance according to the width of the growth rod assembly, and the correction effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a spinal correction device and system based on electromagnetic control. Background Art

[0002] Scoliosis is a common bone disease, which is mainly manifested as abnormal curvature of the spine. Early-onset scoliosis (EOS) is a special type of scoliosis that occurs in children under 10 years old with immature bones. If this disease is not treated in time, it will have a serious impact on the patient's growth and development, including hindering bone development, affecting the chest and lung function, and even causing cardiopulmonary problems, seriously threatening the patient's life and health;

[0003] With the change of lifestyle, factors such as long-term sitting, poor sitting posture and lack of exercise among teenagers have led to increasingly serious spinal problems. Existing spinal correction devices usually use the principle of electromagnetic induction to achieve remote control of spinal growth rods through the magnetic field force generated by the rotation of electromagnet 2. However, in the process of spinal correction, teenagers need to replace screws with different apertures as they age. The existing device cannot adjust the appropriate distance according to the width of the growth rod, resulting in poor correction effect, and cannot obtain real-time spinal growth and movement acceleration information to provide a basis for doctors to formulate more accurate treatment plans. The effect is not ideal. For this reason, we propose a spinal correction device and system based on electromagnetic control. Summary of the invention

[0004] The object of the present invention is to provide a spinal correction device and system based on electromagnetic control.

[0005] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: a spinal correction device based on electromagnetic control, comprising a correction device body, the correction device body comprising a control component, a fixing component connected to the correction device body, a growth rod component connected to the fixing component, a magnetic control component connected to the growth rod component, and a sleeve component connected to the growth rod component;

[0006] The fixing assembly includes a nut, a nut, a screw rod, an arc plate, a pull rod, a spring, a clamping plate and a clamping groove. The rear part of the nut is fixedly connected to the screw rod, the screw rod is fastened with a spine through the nut, two arc plates are fixedly connected at the front end of the nut, the pull rod is slidably connected on the arc plate, the left end of the pull rod is fixedly connected to the right end of the clamping plate, the spring is arranged between the arc plate and the clamping plate, and the clamping groove is opened inside the clamping plate;

[0007] The two growth rod assemblies include an upper rod body, a lower rod body, an adjusting rod, a microcontroller, a first displacement sensor and a position sensor. The microcontroller is fixed inside the lower rod body, a temperature sensor is fixed on the right side of the microcontroller, the first displacement sensor is fixed on the adjusting rod, connecting plates are fixed on both sides of the outside of the lower rod body, a fixing frame is arranged on the upper end of the connecting plate, a fixing groove is provided inside the fixing frame, a sliding groove is provided on the right side of the inside of the fixing frame, a first motor is arranged at the inner bottom of the fixing groove, a lead screw is fixedly connected to the upper end of the first motor, a position sensor is arranged on the top of the fixing groove, a lifting block is threadedly connected to the lead screw, a fixing sleeve is fixedly provided on the outer side of the adjusting rod, fixed sliders are fixed on the left and right ends of the fixing sleeve, a connecting block is fixed to the right end of the right fixed slider, a connecting frame is fixed to the upper end of the right connecting plate, a sliding rod is fixed to the inner middle part of the connecting frame, and a connecting slider is slidably connected to the sliding rod.

[0008] As a further solution of the present invention: the control component includes an external controller, a user interface, a control button, a support column, a base and an anti-slip pad, the user interface is arranged in front of the external controller, the control button is fixed to the bottom of the user interface, the upper end of the support column and the lower end of the external controller are fixedly connected, the base is fixed to the lower end of the support column, the upper end of the anti-slip pad and the lower end of the support column are fixedly connected, and a magnet is arranged at the right end of the base.

[0009] As a further solution of the present invention: the magnetic control component includes a square plate, a second motor, a rotating shaft, a second magnet, a limiting groove and a second displacement sensor, the second motor is fixed to the top surface of the square plate, the lower end of the rotating shaft is fixedly connected to the upper end of the second motor, the second magnet is fixed to the rotating shaft, and limiting grooves are provided inside the lower rod body and the upper rod body, the limiting grooves are used to adjust the upper and lower height adjustment settings of the rod, and the second displacement sensor is fixed on the upper rod body and the lower rod body.

[0010] As a further solution of the present invention: the two sleeve assemblies include an outer tube, a slot, a cover body, a snap ring and a temperature sensor, the slot is opened inside the outer tube, the cover body is covered on the top surface of the outer tube, and the snap ring is fixed to the lower end surface of the cover body.

[0011] As a further solution of the present invention: a pressure sensor, an acceleration sensor and a strain gauge sensor are arranged in sequence from left to right between the spine and the upper rod.

[0012] As a further solution of the present invention: the upper rod body, the lower rod body and the adjustment rod in the correction device body are all made of titanium alloy.

[0013] As a further solution of the present invention: the first displacement sensor is fixedly arranged on the adjusting rod.

[0014] In addition, the present invention also provides a spinal correction system based on electromagnetic control, comprising the following steps:

[0015] S1. First, before using the correction device, check that the external remote control and the microcontroller are in normal working condition, insert the nut and screw into the upper and lower ends of the spine respectively, use the nut to tighten the spine and the screw, pull the two pull rods to the opposite position, at this time, the pull rod makes the two clamping plates move towards each other, put the entire growth rod assembly into the interior of the upper and lower fixing assemblies, and complete the clamping operation of the clamping plate on the growth rod assembly under the action of the spring, and the growth rod assembly is in the initial support state;

[0016] S2. Secondly, after a period of use, the pressure sensor, acceleration sensor and strain gauge sensor sense the pressure of the spine on the upper rod, the lower rod and the adjustment rod, the force change of the spine and the stress and strain. When the first displacement sensor and the second displacement sensor monitor the force condition of the growth rod and the growth change of the spine in real time, the microcontroller sends a command to the external controller, which receives and processes the command. The doctor inputs the control command through the user interface of the external remote control to adjust the position of the growth rod assembly. At this time, the microcontroller controls the second motor to drive the rotating shaft and the second magnet to rotate and generate electricity, and supplies power to the first motor. The first motor drives the lifting block on the screw rod to rise and fall according to the doctor's needs.

[0017] S3, further, the lifting block and the connecting block are lifted and lowered, driving the fixed sleeve between the lifting block and the connecting block to slide up and down inside the internal limiting grooves of the upper rod body and the lower rod body, controlling the lifting and lowering of the two growing rod assemblies, and completing the height adjustment of the adjusting rod inside the upper rod body and the lower rod body;

[0018] S4. Also, after the adjustment is completed, the doctor observes the numerical information on the user interface, presses the control button on the external controller to stop, issues a command to the microcontroller, stops the power supply to the second motor, the rotating shaft and the second magnet, stops the lifting block and the slider from lifting, and completes the height adjustment of the stop adjustment rod inside the upper rod body and the lower rod body;

[0019] S5. Finally, the doctor monitors the information of the position sensor, the first displacement sensor and the two second displacement sensors in the correction device in real time, and observes the position and status of the upper rod body, the adjustment rod and the lower rod body in the correction device. The microcontroller transmits the information back to the external controller. The doctor views the information through the user interface of the external controller, and adjusts and confirms the success of the operation as needed. After completing all necessary operations, the doctor can issue an end command through the control button, disconnect the connection with the growth rod assembly, and turn off the external controller.

[0020] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The present invention inserts nuts and screws into the upper and lower ends of the spine for fixing, pulls two pull rods to opposite positions, and places the entire growth rod assembly between the upper and lower fixing assemblies. Under the action of the spring, the clamping plate clamps the growth rod assembly. At the same time, the pull rod drives the clamping plate to clamp the upper rod body and the lower rod body in the growth rod assembly under the action of the spring. The distance can be automatically adjusted to a suitable distance according to the width of the growth rod assembly, and the correction effect is good. The provided clamping groove has a good clamping effect, which solves the problem that screws with different apertures need to be replaced as the age of the teenager increases when using the existing correction device.

[0022] 2. The present invention arranges a first displacement sensor, two second displacement sensors, a temperature sensor, a pressure sensor, an acceleration sensor and a strain gauge sensor. The first displacement sensor and the two second displacement sensors monitor the growth and development of the spine, the temperature sensor monitors the temperature in the patient's body, and the pressure sensor cooperates with the acceleration sensor and the strain gauge sensor to indirectly obtain the corresponding resistance change of the strain gauge when the patient's spine changes, and observes the position and state of the upper rod body, the adjustment rod and the lower rod body in the correction device body, which is convenient for doctors to monitor and adjust in real time, and can realize accurate and remote control of the upper rod body, the lower rod body and the adjustment rod in the growth rod assembly, ensuring the safety and success of the operation process, providing a basis for doctors to formulate more accurate treatment plans, and having good treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a first stereoscopic schematic diagram in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram at A in the middle;

[0025] Figure 3 This is a schematic diagram of the connection structure between the spine and the fixation assembly in an embodiment of the present invention;

[0026] Figure 4 is a second stereoscopic schematic diagram of an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the connection structure between the upper rod body and the limiting groove in an embodiment of the present invention;

[0028] Figure 6 for Figure 5 Schematic diagram at point B in the middle;

[0029] Figure 7 It is a schematic diagram of the connection structure of the upper rod body, the lower rod body and the sleeve assembly in an embodiment of the present invention;

[0030] Figure 8 It is a three-dimensional schematic diagram of a growth rod assembly and a magnetic control assembly in an embodiment of the present invention.

[0031] In the figure: 1. Correction device body; 2. Control assembly; 21. External controller; 22. User interface; 23. Control button; 24. Support column; 25. Base; 26. Anti-skid pad; 3. Spine; 4. Fixing assembly; 41. Nut; 42. Nut; 43. Arc plate; 44. Pull rod; 45. Spring; 46. Clamping plate; 461. Clamping groove; 5. Growth rod assembly; 51. Upper rod body; 52. Lower rod body; 522. Microcontroller; 5231. First displacement sensor; 524. Connecting plate; 525. Fixing frame; 526. Fixing groove; 5261. Slide groove; 527. The first motor; 528, the screw rod; 5281, the position sensor; 529, the lifting block; 530, the fixed slider; 531, the fixed sleeve; 532, the connecting frame; 533, the connecting block; 534, the sliding rod; 535, the connecting slider; 54, the magnetic control assembly; 541, the square plate; 542, the second motor; 543, the rotating shaft; 544, the second magnet; 56, the limiting groove; 57, the second displacement sensor; 59, the sleeve assembly; 591, the slot; 592, the cover; 593, the retaining ring; 58, the temperature sensor; 6, the pressure sensor; 7, the acceleration sensor; 8, the strain gauge sensor. DETAILED DESCRIPTION

[0032] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0033] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Please refer to the attached Figure 1 -Attached Figure 8 The present invention provides a spinal correction device and system based on electromagnetic control, comprising a correction device body 1, wherein the correction device body 1 comprises a control component 2, a fixing component 4 connected to the correction device body 1, a growth rod component 5 connected to the fixing component 4, a magnetic control component 54 connected to the growth rod component 5, and a sleeve component 59 connected to the growth rod component 5;

[0035] The fixing assembly 4 includes a nut 41, a nut 42, a screw, an arc plate 43, a pull rod 44, a spring 45, a clamping plate 46 and a clamping groove 461. The rear portion of the nut 42 is fixedly connected to the screw, the screw is fastened to the spine 3 through the nut 41, the two arc plates 43 are fixedly connected at the front end of the nut 42, the pull rod 44 is slidably connected on the arc plate 43, the left end of the pull rod 44 is fixedly connected to the right end of the clamping plate 46, the spring 45 is arranged between the arc plate 43 and the clamping plate 46, and the clamping groove 461 is opened inside the clamping plate 46;

[0036] The two growth rod assemblies 5 include an upper rod body 51, a lower rod body 52, an adjustment rod, a microcontroller 522, a first displacement sensor 5231 and a position sensor 5281. The microcontroller 522 is fixed inside the lower rod body 52. ​​A temperature sensor 58 is fixed on the right side of the microcontroller 522. The first displacement sensor 5231 is fixed on the adjustment rod. Connecting plates 524 are fixed on both sides of the outer side of the lower rod body 52. ​​A fixing frame 525 is provided on the upper end of the connecting plate 524. A fixing groove 526 is provided inside the fixing frame 525. A sliding groove 5261 is provided on the right side of the inner side of the fixing frame 525. The fixing groove 526 is provided on the inner side of the fixing frame 525. A first motor 527 is provided at the bottom of the inner side of the adjusting rod 26, a screw rod 528 is fixedly connected to the upper end of the first motor 527, a position sensor 5281 is provided at the top of the fixing groove 526, a lifting block 529 is threadedly connected to the screw rod 528, a fixing sleeve 531 is fixedly provided at the outer side of the adjusting rod, and fixed sliders 530 are fixed to the left and right ends of the fixing sleeve 531, a connecting block 533 is fixed to the right end of the right fixed slider 530, a connecting frame 532 is fixed to the upper end of the right connecting plate 524, a sliding rod 534 is fixed to the inner middle part of the connecting frame 532, and a connecting slider 535 is slidably connected to the sliding rod 534;

[0037] In one embodiment of the present invention: the control assembly 2 includes an external controller 21, a user interface 22, a control button 23, a support column 24, a base 25 and an anti-skid pad 26, the user interface 22 is arranged in front of the external controller 21, the control button 23 is fixed to the bottom of the user interface 22, the upper end of the support column 24 is fixedly connected to the lower end of the external controller 21, the base 25 is fixed to the lower end of the support column 24, the upper end of the anti-skid pad 26 is fixedly connected to the lower end of the support column 24, and a magnet 1 is arranged at the right end of the base 25;

[0038] In one embodiment of the present invention: the magnetic control component 54 includes a square plate 541, a second motor 542, a rotating shaft 543, a second magnet 544, a limiting groove 56 and a second displacement sensor 57, the second motor 542 is fixed to the top surface of the square plate 541, the lower end of the rotating shaft 543 is fixedly connected to the upper end of the second motor 542, the second magnet 544 is fixed to the rotating shaft 543, and limiting grooves 56 are provided inside the lower rod body 52 and the upper rod body 51. The limiting grooves 56 are used to adjust the upper and lower height adjustment settings of the rod, and the second displacement sensor 57 is fixed to the upper rod body 51 and the lower rod body 52.

[0039] In one embodiment of the present invention: the two sleeve assemblies 59 include an outer tube, a slot 591, a cover body 592, a snap ring 593 and a temperature sensor 58, the slot 591 is opened inside the outer tube, the cover body 592 is covered on the top surface of the outer tube, and the snap ring 593 is fixed to the lower end surface of the cover body 592.

[0040] In one embodiment of the present invention: a pressure sensor 6, an acceleration sensor 7 and a strain gauge sensor 8 are arranged in sequence from left to right between the spine 3 and the upper rod 51.

[0041] Example 1, please refer to the attached Figure 1 -Attached Figure 8 By setting the upper rod body 51, the lower rod body 52 and the adjustment rod in the correction device body 1 to titanium alloy material, it has the characteristics of high strength, light weight and strong corrosion resistance, remains stable in the human body fluid environment, and extends the service life and safety of the correction device body 1.

[0042] Example 2, please refer to the attached Figure 1 -Attached Figure 8 By fixing the first displacement sensor 5231 on the adjusting rod, magnetic fields of different strengths and directions are generated by controlling the magnitude and direction of the current.

[0043] Example 3, please refer to the attached Figure 1 -Attached Figure 8 , the microcontroller 522 controls the second motor 542 to drive the rotating shaft 543 and the second magnet 544 to rotate and generate electricity, and the first motor 527 is powered. The first motor 527 drives the lifting block 529 on the screw rod 528 to rise and fall according to the doctor's needs, and at the same time drives the fixed sleeve 531 and the connecting slider 535 and the connecting block 533 fixedly connected to the right end of the fixed sleeve 531 to slide. The connecting block 533 slides inside the connecting frame 532, and the fixed slider 530 slides vertically inside the slide groove 5261, and the lifting block 529 is vertically limited, so that the fixed sleeve 531 is more stable when the adjusting rod is lifted and lowered;

[0044] Example 4, please refer to the attached Figure 1 -Attached Figure 8 Through the arrangement of the first displacement sensor 5231, the two second displacement sensors 57, the temperature sensor 58, the pressure sensor 6, the acceleration sensor 7 and the strain gauge sensor 8, the first displacement sensor 5231 and the two second displacement sensors 57 monitor the growth and development of the spine 3, the temperature sensor 58 monitors the temperature in the patient's body, the pressure sensor 6 cooperates with the acceleration sensor 7 and the strain gauge sensor 8 to indirectly obtain the corresponding resistance change of the strain gauge when the patient's spine 3 changes, and the pressure sensor 6 and the acceleration sensor 7 monitor the pressure change and acceleration change of the growth rod assembly 5, which provides a basis for doctors to formulate more accurate treatment plans, and the treatment effect is good;

[0045] The present invention also provides a spinal correction system based on electromagnetic control, comprising the following steps:

[0046] S1. First, before starting to use the correction device body 1, check that the working status of the external remote control and the microcontroller 522 is normal, insert the nut 42 and the screw into the upper and lower ends of the spine 3 respectively, use the nut 41 to tighten the spine 3 and the screw, pull the two pull rods 44 to the opposite positions, at this time, the pull rod 44 makes the two clamping plates 46 move towards each other, put the entire growth rod assembly 5 into the interior of the upper and lower fixing assemblies 4, under the action of the spring 45, complete the clamping operation of the clamping plate 46 on the growth rod assembly 5, and the growth rod assembly 5 is in the initial support state;

[0047] S2. Secondly, after a period of use, the pressure sensor 6, the acceleration sensor 7 and the strain gauge sensor 8 sense the pressure of the spine 3 on the upper rod 51, the lower rod 52 and the adjustment rod, the force change and the stress-strain of the spine 3. When the first displacement sensor 5231 and the second displacement sensor 57 monitor the force condition of the growth rod assembly 5 and the growth change of the spine 3 in real time, the microcontroller 522 sends a command to the external controller 21, the external controller 21 receives and processes it, and the doctor inputs the control command through the user interface 22 of the external remote control to adjust the position of the growth rod assembly 5. When the doctor is in the position of the first motor 527, the doctor randomly selects two ways to adjust and extend the growth rod assembly. The first way is that the microcontroller 522 controls the second motor 542 to drive the rotating shaft 543 and the second magnet 544 to rotate and generate electricity, and the first motor 527 is powered. The first motor 527 drives the lifting block 529 on the screw 528 to rise and fall according to the doctor's needs. The second way is that the magnet 1 of the external controller 21 rotates and couples with the internal magnet 2 544 to provide input torque. The rotational motion of the input torque is converted into linear motion through the screw 528, thereby pulling the growth rod assembly 5 to extend.

[0048] S3, the lifting block 529 and the connecting block 533 are lifted and lowered, driving the fixing sleeve 531 between the lifting block 529 and the connecting block 533 to slide up and down inside the internal limiting groove 56 of the upper rod body 51 and the lower rod body 52, controlling the lifting and lowering of the two growing rod assemblies 5, and completing the height adjustment of the adjusting rod inside the upper rod body 51 and the lower rod body 52;

[0049] S4. Also, after the adjustment is completed, the doctor observes the numerical information on the user interface 22, presses the control button 23 on the external controller 21 to stop, issues a command to the microcontroller 522, stops the power supply to the second motor 542, the rotating shaft 543 and the second magnet 544, stops the lifting block 529 and the slider from lifting and lowering, and completes the height adjustment of the stop adjustment rod inside the upper rod body 51 and the lower rod body 52;

[0050] S5. Finally, the doctor monitors the information of the position sensor 5281, the first displacement sensor 5231 and the two second displacement sensors 57 in the correction device body 1 in real time, and observes the position and status of the upper rod body 51, the adjustment rod and the lower rod body 52 in the correction device body 1. The microcontroller 522 transmits the information back to the external controller 21. The doctor views the information through the user interface 22 of the external controller 21, and adjusts and confirms the success of the operation as needed. After completing all necessary operations, the doctor can issue an end command through the control button 23, disconnect the connection with the growth rod assembly 5, and turn off the external controller 21.

[0051] Example 5, please refer to the attached Figure 1 -Attached Figure 8 The second motor 542 drives the rotating shaft 543 and the second magnet 544 to rotate, which drives the first motor 527 and the screw 528 in the growth rod assembly 5 to rotate, and provides input torque for the height adjustment of the lifting block 529, the fixed slider 530 and the fixed sleeve 531. The rotational motion of the second magnet 544 completes the mechanical transmission and is converted into a linear lifting motion. A third motor is arranged inside the in vitro controller 21. The rotation of the third motor drives the first magnet to rotate. The first magnet rotates and couples with the internal second magnet 544 to provide input torque. The rotational motion of the input torque is converted into a linear motion through the screw 528, thereby pulling the growth rod assembly 5 to extend and retract.

[0052] Specifically, the present invention fixes the nut 42 and the screw at the upper and lower ends of the spine 3 respectively, pulls the two pull rods 44 to opposite positions, and places the entire growth rod assembly 5 between the upper and lower fixing assemblies 4. Under the action of the spring 45, the clamping operation of the clamping plate 46 on the growth rod assembly 5 is completed. At the same time, the pull rod 44, under the action of the spring 45, drives the clamping plate 46 to clamp the upper rod body 51 and the lower rod body 52 in the growth rod assembly 5, which can be automatically adjusted to a suitable distance according to the width of the growth rod assembly 5, and has a good correction effect. The set clamping groove 461 has a good clamping effect, which solves the problem that when the existing correction device main body 1 is used, it needs to replace screws of different diameters as the age of the teenager increases.

[0053] Specifically, the doctor monitors the information of the position sensor 5281, the first displacement sensor 5231 and the two second displacement sensors 57 in the correction device body 1 in real time, and observes the position and status of the upper rod body 51, the adjustment rod and the lower rod body 52 in the correction device body 1, which is convenient for the doctor to monitor and adjust in real time, and can achieve precise and remote control of the upper rod body 51, the lower rod body 52 and the adjustment rod in the growth rod assembly 5, ensuring the safety and success of the operation.

[0054] Working principle:

[0055] First, before using the correction device body 1, make sure that the external controller 21 and the microcontroller 522 are in normal working condition, then insert the nut 42 and the screw into the upper and lower ends of the spine 3 and fix them, pull the two pull rods 44 to opposite positions, put the entire growth rod assembly 5 into the interior of the upper and lower fixing assemblies 4, and under the action of the spring 45, complete the clamping operation of the clamping plate 46 on the growth rod assembly 5. The clamping plate 46 is driven by the set pull rod 44 under the action of the spring 45 to clamp the upper rod body 51 and the lower rod body 52 in the growth rod assembly 5, and the set clamping groove 461 has a good clamping effect;

[0056] Insert the upper and lower clamping rings 593 into the two clamping grooves 591 to achieve the clamping connection between the outer tubes and the cover bodies 592 in the two sleeve assemblies 59, and protect and support the two growing rod assemblies 5;

[0057] The doctor monitors the position message reminder of the first displacement sensor 5231 and the two second displacement sensors 57 through the information in the user interface 22 of the external controller 21. After sensing the need to adjust the extension of the correction device body 1, the doctor inputs a control command through the control button 23 of the external controller 21 to adjust the position extension of the growth rod assembly 5. The input command is received and processed by the external controller 21 and transmitted to the microcontroller 522. By setting an anti-skid pad 26 at the bottom of the support column 24 and the base 25, the anti-skid of the external controller 21 is achieved. At this time, the microcontroller 522 controls the two second motors 542 to drive the rotating shaft 543 and the magnet The second motor 544 rotates to generate electricity and supplies power to the first motor 527. The first motor 527 drives the screw rod 528 to rise. The height of the lifting block 529 and the connecting block 533 increases with the rise of the screw rod 528, and at the same time drives the fixing sleeve 531 between the lifting block 529 and the connecting block 533 to slide upward inside the internal limiting groove 56 of the upper rod body 51 and the lower rod body 52, so as to control the two growing rod assemblies 5 to rise at the same time. The magnet 1 of the in vitro controller 21 rotates and couples with the internal magnet 2 544 to provide input torque. The rotational motion of the input torque is converted into linear motion through the provided screw rod 528, thereby pulling the growing rod assembly 5 to extend.

[0058] When it is necessary to shorten the adjustment rod in the correction device body 1, the doctor inputs a control command through the control button 23 of the external controller 21 to adjust the position of the growth rod assembly 5 to shorten. The input command is received and processed by the controller and transmitted to the microcontroller 522. At this time, the microcontroller 522 controls the two second motors 542 to drive the rotating shaft 543 and the second magnet 544 to rotate and generate electricity, and supplies power to the first motor 527. The first motor 527 drives the screw rod 528 to descend, and the height of the lifting block 529 and the connecting block 533 decreases as the screw rod 528 descends, and at the same time drives the fixing sleeve 531 between the lifting block 529 and the connecting block 533 to move upward on the upper rod. The inner limiting groove 56 of the upper rod body 51 and the lower rod body 52 slides downward, controlling the two growing rod assemblies 5 to simultaneously descend to a suitable height, completing the shortening adjustment of the height of the adjusting rod inside the upper rod body 51 and the lower rod body 52, or the doctor rotates the magnet 1 of the external controller 21 and couples with the internal magnet 2 544 to provide input torque, and the rotational motion of the input torque is converted into linear motion through the provided screw rod 528, thereby pulling the growing rod assembly 5 to shorten, and improving the growth and development of the deformity of the spine 3 through magnetic field control. The growing rod assembly 5 can be controlled by the external controller 21, avoiding the damage caused by repeated incision and extension required by traditional distraction surgery;

[0059] At this point, the entire workflow ends.

[0060] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0062] It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field.

[0063] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0064] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations are made to these embodiments without departing from the principle and spirit of the present invention, and they still fall within the protection scope of the present invention.

Claims

1. A spinal correction device based on electromagnetic control, comprising a correction device body (1), characterized in that: The correction device body (1) comprises a control component (2), a fixing component (4) connected to the correction device body (1), a growth rod component (5) connected to the fixing component (4), a magnetic control component (54) connected to the growth rod component (5), and a sleeve component (59) connected to the growth rod component (5); The fixing assembly (4) comprises a nut (41), a nut (42), a screw, an arc-shaped plate (43), a pull rod (44), a spring (45), a clamping plate (46) and a clamping groove (461), wherein the rear portion of the nut (42) is fixedly connected to the screw, the screw is fastened to the spine (3) through the nut (41), the two arc-shaped plates (43) are fixedly connected to the front end of the nut (42), the pull rod (44) is slidably connected on the arc-shaped plate (43), the left end of the pull rod (44) is fixedly connected to the right end of the clamping plate (46), the spring (45) is arranged between the arc-shaped plate (43) and the clamping plate (46), and the clamping groove (461) is opened inside the clamping plate (46); The two growth rod assemblies (5) include an upper rod body (51), a lower rod body (52), an adjustment rod, a microcontroller (522), a first displacement sensor (5231) and a position sensor (5281). The microcontroller (522) is fixed inside the lower rod body (52). A temperature sensor (58) is fixed on the right side of the microcontroller (522). The first displacement sensor (5231) is fixed on the adjustment rod. Connecting plates (524) are fixed on both sides of the outer side of the lower rod body (52). A fixing frame (525) is provided at the upper end of the connecting plate (524). A fixing groove (526) is provided inside the fixing frame (525). A sliding groove (5261) is provided on the right side of the inner side of the fixing frame (525). The fixing groove (526) is provided on the inner side of the fixing frame (525). A first motor (527) is arranged at the bottom of the inner side of the adjusting rod (526), ​​a screw rod (528) is fixedly connected to the upper end of the first motor (527), a position sensor (5281) is arranged at the top of the fixing groove (526), ​​a lifting block (529) is threadedly connected to the screw rod (528), a fixing sleeve (531) is fixedly arranged on the outer side of the adjusting rod, a fixing slider (530) is fixed to the left and right ends of the fixing sleeve (531), a connecting block (533) is fixed to the right end of the right fixing slider (530), a connecting frame (532) is fixed to the upper end of the right connecting plate (524), a sliding rod (534) is fixed to the inner middle part of the connecting frame (532), and a connecting slider (535) is slidably connected to the sliding rod (534).

2. The electromagnetically controlled spinal correction device according to claim 1, characterized in that: The control component (2) comprises an external controller (21), a user interface (22), a control button (23), a support column (24), a base (25) and an anti-skid pad (26); the user interface (22) is arranged in front of the external controller (21); the control button (23) is fixed to the bottom of the user interface (22); the upper end of the support column (24) is fixedly connected to the lower end of the external controller (21); the base (25) is fixedly connected to the lower end of the support column (24); the upper end of the anti-skid pad (26) is fixedly connected to the lower end of the support column (24); and a magnet is arranged at the right end of the base (25).

3. The electromagnetically controlled spinal correction device according to claim 1, characterized in that: The magnetic control assembly (54) comprises a square plate (541), a second motor (542), a rotating shaft (543), a second magnet (544), a limiting groove (56) and a second displacement sensor (57); the second motor (542) is fixed to the top surface of the square plate (541); the lower end of the rotating shaft (543) is fixedly connected to the upper end of the second motor (542); the second magnet (544) is fixed to the rotating shaft (543); the lower rod body (52) and the upper rod body (51) are both provided with limiting grooves (56); and the second displacement sensor (57) is fixed to the upper rod body (51) and the lower rod body (52).

4. The electromagnetically controlled spinal correction device according to claim 1, characterized in that: The two sleeve assemblies (59) include an outer tube, a slot (591), a cover body (592), a snap ring (593) and a temperature sensor (58); the slot (591) is provided inside the outer tube; the cover body (592) is covered on the top surface of the outer tube; and the snap ring (593) is fixed to the lower end surface of the cover body (592).

5. The electromagnetically controlled spinal correction device according to claim 1, characterized in that: A pressure sensor (6), an acceleration sensor (7) and a strain gauge sensor (8) are arranged in sequence from left to right between the spine (3) and the upper rod body (51).

6. The electromagnetically controlled spinal correction device according to claim 1, characterized in that: The upper rod body (51), the lower rod body (52) and the adjustment rod in the correction device body (1) are all made of titanium alloy.

7. The electromagnetically controlled spinal correction device according to claim 1, characterized in that: The first displacement sensor (5231) is fixedly arranged on the adjustment rod.

8. A spinal correction system for use with an electromagnetically controlled spinal correction device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. First, before starting to use the correction device body (1), check that the external remote control and the microcontroller (522) are in normal working condition, insert the nut (42) and the screw into the upper and lower ends of the spine (3) respectively, use the nut (41) to tighten the spine (3) and the screw, pull the two pull rods (44) to opposite positions, at this time, the pull rods (44) make the two clamping plates (46) move towards each other, put the entire growth rod assembly (5) into the interior of the upper and lower fixing assemblies (4), and under the action of the spring (45), complete the clamping operation of the clamping plate (46) on the growth rod assembly (5), and the growth rod assembly (5) is in the initial support state; S2. Secondly, after a period of use, the pressure sensor (6), the acceleration sensor (7) and the strain gauge sensor (8) sense the pressure of the spine (3) on the upper rod body (51), the lower rod body (52) and the adjustment rod, the force change and stress and strain of the spine (3), and the first displacement sensor (5231) and the second displacement sensor (57) monitor the force of the growth rod assembly (5) and the growth change of the spine (3) in real time. The microcontroller (522) sends a command to the external controller (21), and the external controller (21) receives and processes it. The doctor inputs the control command through the user interface (22) of the external remote control to adjust the position of the growth rod assembly (5). At this time, the microcontroller (522) controls the second motor (542) to drive the rotating shaft (543) and the second magnet (544) to rotate and generate electricity, and supply power to the first motor (527). The first motor (527) drives the lifting block (529) on the screw rod (528) to rise and fall according to the doctor's needs; S3, further, the lifting block (529) and the connecting block (533) are lifted and lowered, driving the fixing sleeve (531) between the lifting block (529) and the connecting block (533) to slide up and down inside the internal limiting grooves (56) of the upper rod body (51) and the lower rod body (52), thereby controlling the lifting and lowering of the two growing rod assemblies (5), and completing the height adjustment of the adjusting rod inside the upper rod body (51) and the lower rod body (52); S4. Also, after the adjustment is completed, the doctor observes the numerical information on the user interface (22), presses the control button (23) on the external controller (21) to stop, issues a command to the microcontroller (522), stops the power supply to the second motor (542), the rotating shaft (543) and the second magnet (544), stops the lifting block (529) and the slider from lifting and lowering, and completes the height adjustment of the stop adjustment rod inside the upper rod body (51) and the lower rod body (52); S5. Finally, the doctor monitors the information of the position sensor (5281), the first displacement sensor (5231) and the two second displacement sensors (57) in the correction device body (1) in real time, and observes the position and status of the upper rod body (51), the adjustment rod and the lower rod body (52) in the correction device body (1). The microcontroller (522) transmits the information back to the external controller (21). The doctor views the information through the user interface (22) of the external controller (21), and adjusts and confirms the success of the operation as needed. After completing all necessary operations, the doctor can issue an end command through the control button (23), disconnect the connection with the growth rod assembly (5), and turn off the external controller (21).

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