An elbow arthroscopy limb support fixation device

Abstract

The application discloses an elbow arthroscopy limb supporting and fixing device and relates to the medical equipment field.The device comprises a supporting plate, the surface side of the supporting plate away from the fixing belt is provided with a limb positioning mechanism for positioning and angle adjusting of the limb, the limb positioning mechanism comprises symmetrical connecting blocks fixed on the surface side of the supporting plate, the surface side of the supporting plate close to the connecting blocks is provided with a supporting seat, the side of the supporting seat close to the supporting plate is provided with a movable space for rotation of the connecting blocks, and the supporting plate is in a horizontal state when the connecting blocks are in a vertical state.The angle of the supporting plate can be adjusted through rotation of the connecting blocks, and the angle of the supporting plate is fixed through self-locking performance between the worm gears after the adjustment, so that the angle of the supporting plate will not change under the action of the gravity of the limb, thereby providing stability for the angle of the limb during the operation.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a limb support and fixation device for elbow arthroscopy. Background Technology

[0002] Elbow arthroscopy is a minimally invasive surgery used to diagnose and treat various diseases of the elbow joint. During elbow arthroscopy, the patient's limb needs to be stably supported and fixed by a support and fixation device in order to provide a good field of vision and operating space for the surgical procedure.

[0003] The publication number CN220046401U discloses a limb support and fixation device for elbow arthroscopy in sports medicine, but it still has the following shortcomings in practical use:

[0004] When this device is used to fix the patient's limb, the angle of the fixation device is adjusted by a threaded connection. After adjustment, the angle of the fixation device is maintained by the friction between the threaded tube and the threaded rod. Because the limb itself has its own weight, when the weight of the limb is greater than the friction between the threaded tube and the threaded rod, the angle of the fixation device is prone to change, which may affect the normal progress of the operation or cause harm to the patient. Utility Model Content

[0005] In order to improve the problem of angle change due to limb gravity after limb angle adjustment, this application provides a limb support and fixation device during elbow arthroscopy.

[0006] The limb support and fixation device for elbow arthroscopy provided in this application adopts the following technical solution:

[0007] A limb support and fixation device for elbow arthroscopy includes a support plate, on the surface of which fixation straps are symmetrically arranged, and on the side of the support plate away from the fixation straps, a limb positioning mechanism for positioning the limb and adjusting its angle is provided.

[0008] The limb positioning mechanism includes connecting blocks symmetrically fixed on one side of the surface of the support plate. A support seat is provided on the side of the support plate near the connecting block. The support seat has an open space for the connecting block to rotate on the side near the support plate. When the connecting block is in a vertical state, the support plate is in a horizontal state.

[0009] By adopting the above technical solution, the limb positioning mechanism can fix the limb angle after adjusting the limb angle, preventing the limb angle from changing due to its own gravity.

[0010] Preferably, the limb positioning mechanism further includes a drive box disposed on one side of the support plate surface, a reduction motor is fixedly disposed inside the drive box, a worm gear rotatably disposed inside the drive box is fixedly disposed at the output end of the reduction motor, a worm wheel meshing with the worm gear is disposed inside the drive box, a rotating shaft passing through the side wall of the drive box is fixedly disposed at the end of the worm wheel away from the worm gear, and the end of the connecting block away from the support plate is fixedly disposed on the surface of the rotating shaft.

[0011] An anti-slip seat is fixed on the side of the support plate away from the connecting block. The anti-slip seat has ventilation holes and protrusions on the surface away from the support plate. An adjustment component for adjusting the position of the fixing strap is provided on the surface of the support plate.

[0012] By adopting the above technical solution, the geared motor provides power to rotate the worm, which in turn drives the worm wheel to rotate, which in turn drives the shaft to rotate, causing the connecting block to flip, thereby adjusting the angle of the support plate, and then adjusting the angle of the limb. During the adjustment process, the protrusions and ventilation holes can prevent the limb from slipping off the surface of the support plate.

[0013] Preferably, the adjustment assembly includes an adjustment rod fixed to one side of the surface of the fixing belt, the adjustment rod being slidably disposed on the inner surface of the anti-slip seat, a driving block being fixedly disposed at the end of the adjustment rod away from the fixing belt, a guide block being fixedly disposed at the end of the fixing belt away from the adjustment rod, the guide block being slidably disposed on the inner surface of the anti-slip seat, and a locking block being slidably disposed at the end of the guide block away from the fixing belt, which is engaged with the inner wall of the anti-slip seat.

[0014] By adopting the above technical solution, the driving block provides power to the adjusting rod, which in turn moves the fixing belt, thereby changing the fixing position of the fixing belt on the limb. After the fixing belt moves, it is automatically fixed by the locking of the locking block, so that the fixing belt is positioned inside the anti-slip seat.

[0015] Preferably, an elastic element fixed inside the guide block is fixed to one side of the surface of the card block.

[0016] By adopting the above technical solution, the elastic element provides power to the locking block, enabling the locking block to be smoothly engaged inside the anti-slip seat.

[0017] Preferably, a lifting box is slidably provided at the end of the support base away from the support plate, and an electric push rod is provided inside the lifting box. The telescopic end of the electric push rod is fixed to the end of the support base away from the support plate.

[0018] By adopting the above technical solution, the electric actuator drives the support base to move up and down, thereby causing the limb positioning mechanism to move up and down, so that medical staff can adjust the height of the limb according to their own needs.

[0019] Preferably, the anti-slip seat, protrusion, and fixing strap are all made of natural rubber.

[0020] By adopting the above technical solution, the anti-slip seat, protrusions, and fixing straps are made of natural rubber, which can provide comfort for patients during use.

[0021] Preferably, the fixing belt is in an undeformed state when not subjected to external force, and in a deformed state after being subjected to external force.

[0022] By adopting the above technical solution, the fixation strap can be deformed to position limbs of different thicknesses.

[0023] Preferably, the protrusion is hemispherical.

[0024] By adopting the above technical solution, the hemispherical protrusion can provide a smooth positioning surface for the patient.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The angle of the support plate can be adjusted by rotating the connecting block, so that the device can meet the multi-angle needs of medical staff. After adjustment, the angle of the support plate is fixed by the self-locking performance between the worm gear and the worm, so that the angle of the support plate will not change under the action of the limb's own weight, thus providing stability for the limb angle during surgery.

[0027] 2. By setting protrusions on the surface of the anti-slip seat, the friction between the anti-slip seat and the limb surface is increased, which helps to better fix the limb. At the same time, the ventilation holes on the surface of the anti-slip seat can promote air circulation, keep the part of the patient's limb in contact with the anti-slip seat dry, reduce discomfort caused by sweating, and improve the patient's comfort.

[0028] 3. The horizontal movement of the fixation strap can adaptively adjust its position according to the length of the patient's limb. It can adjust the fixation strap to the most suitable position according to the patient's specific situation to ensure that the limb is stably fixed. After adjustment, the fixation strap is automatically positioned by the engagement of the locking block and the anti-slip seat, ensuring that the fixation strap remains in the set position after adjustment and will not be displaced due to vibration during surgery, patient movement or other external forces. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present application;

[0030] Figure 2 This is a three-dimensional structural diagram from another angle in this application;

[0031] Figure 3 This is a partial three-dimensional structural schematic diagram of this application;

[0032] Figure 4 This is a three-dimensional structural diagram of the limb positioning mechanism in this application;

[0033] Figure 5 This is a partial three-dimensional structural diagram of the limb positioning mechanism in this application;

[0034] Figure 6 For the axis of this application Figure 5 Enlarged view of point A in the middle;

[0035] Figure 7 For this application Figure 5 Enlarged view of point B in the middle;

[0036] Figure 8 This is a partial three-dimensional structural diagram of the anti-slip seat in this application;

[0037] Figure 9 For this application Figure 8 Enlarged view of point C in the middle;

[0038] Figure 10 This is a three-dimensional structural diagram of the support base and lifting box in this application.

[0039] Reference numerals: 1. Base; 11. Casters; 2. Lifting box; 21. Electric actuator; 22. Guide slot;

[0040] 3. Limb positioning mechanism; 31. Drive box; 32. Gear motor; 33. Worm gear; 34. Worm wheel; 341. Limiting shaft; 35. Rotating shaft; 351. Connecting block; 352. Support plate;

[0041] 36. Support base; 361. Guide plate; 362. Movement space; 363. Limiting groove;

[0042] 37. Anti-slip base; 371. Ventilation hole; 372. Protrusion; 373. Movable groove; 374. Guide groove; 375. Slot; 376. Positioning groove; 377. Strip groove;

[0043] 4. Adjustment component; 41. Drive block; 421. Positioning block; 42. Adjustment rod; 43. Fixing strap; 44. Guide block; 441. Storage slot; 442. Slide groove; 443. Limiting block; 45. Locking block; 451. Sliding block; 452. Elastic element;

[0044] 5. Push-button switch. Detailed Implementation

[0045] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0046] This application discloses a limb support and fixation device for elbow arthroscopy.

[0047] Reference Figures 1-10 A limb support and fixation device for elbow arthroscopy includes a base 1. A lifting box 2 is fixed to one side of the surface of the base 1 by screws. Universal casters 11 are symmetrically installed at the end of the base 1 away from the lifting box 2. The universal casters 11 are Huilide gravity self-locking wheel spring series. Electric push rods 21 are symmetrically arranged inside the lifting box 2. The electric push rods 21 are JC series from Zhejiang Jiechang Linear Drive Technology. The fixed end of the electric push rod 21 is fixed to one side of the bottom wall of the lifting box 2. The telescopic end of the electric push rod 21 is fixed with a support seat 36. A guide plate 361 is symmetrically fixed at the end of the support seat 36 near the base 1. Guide grooves 22 are opened on both sides of the surface of the end of the lifting box 2 near the support seat 36. The guide plate 361 can slide inside the guide groove 22. A limb positioning mechanism 3 for positioning and adjusting the angle of the limb is provided at the end of the lifting box 2 away from the base 1. The limb positioning mechanism 3 is raised and lowered by controlling the electric push rod 21, thereby adjusting the height of the patient's limb according to the needs of medical staff.

[0048] With the above configuration, the telescopic end of the electric actuator 21 provides power to move the support base 36 up and down. The support base 36 moves up and down stably under the guidance of the guide plate 361, thereby moving the limb positioning mechanism 3 up and down, and thus adjusting the height of the limb.

[0049] It should be noted that the extension distance of the telescopic end of the electric actuator 21 is less than the height of the guide groove 22. When the telescopic end of the electric actuator 21 extends to its maximum distance, the guide plate 361 will not detach from the interior of the guide groove 22. When the telescopic end of the electric actuator 21 is not extended, the lower end of the guide plate 361 abuts against the bottom wall of the guide groove 22.

[0050] Reference Figures 1-8The limb positioning mechanism 3 includes a drive box 31 fixed to one side of the surface of the support base 36. A geared motor 32 is fixed inside the drive box 31. The geared motor 32 is an R-series from Jiangsu Keyide Transmission Technology Co., Ltd. A worm 33 is fixed to the output end of the geared motor 32. A worm wheel 34 meshing with the worm 33 is provided inside the drive box 31. One end of the worm 33 is rotatably mounted on the side wall of the drive box 31 via a bearing (this connection method is existing and mature, and will not be described in detail). A limiting shaft 341 is fixed to the end of the worm wheel 34 away from the geared motor 32. The end of the limiting shaft 341 away from the worm wheel 34 is rotatably connected to the inner wall of the drive box 31 via a bearing. The bearing includes an inner ring, an outer ring, rolling elements, and a cage. The outer ring of the bearing is fixedly connected to the inner wall of the drive box 31. A rotating shaft 35 is fixed to the end of the worm wheel 34 away from the worm 33. The rotating shaft 35... The bearing is rotatably connected to the side of the drive housing 31 near the support base 36. The outer ring of the bearing is fixedly connected to the side of the drive housing 31 near the support base 36. A limiting groove 363 is formed on one side of the surface of the support base 36. The rotating shaft 35 passes through the side of the support base 36 near the drive housing 31. The end of the rotating shaft 35 away from the drive housing 31 is rotatably connected to the inner wall of the limiting groove 363 through the bearing. The outer ring of the bearing is fixedly connected to the inner wall of the limiting groove 363. A connecting block 351 is symmetrically fixed on the surface of the rotating shaft 35. A support plate 352 is fixed on the end of the connecting block 351 away from the rotating shaft 35. An active space 362 for the connecting block 351 to rotate is formed on the side of the support base 36 near the support plate 352. The connecting block 351 can rotate inside the active space 362. The two ends of the support plate 352 are arc-shaped, which is beneficial for the placement of the patient's limb.

[0051] With the above configuration, the geared motor 32 provides power to drive the worm 33 on one side to rotate. The rotation of the worm 33 drives the meshing worm wheel 34 to rotate. The rotation of the worm wheel 34 drives the rotating shaft 35 to rotate. The rotation of the rotating shaft 35 drives the connecting block 351 to rotate. The connecting block 351 drives the support plate 352 to rotate, thereby adjusting the angle of the limb placed on the support plate 352.

[0052] It should be noted that: multiple push-button switches 5 are fixed on one side of the surface of the lifting box 2. The push-button switches 5 are the R13-507 series from Letuo Technology, and relay one and relay two are installed inside the lifting box 2.

[0053] Connect one end of one of the push-button switches 5 to the power supply, and the other end of push-button switch 5 to relay 1. Connect the other end of the coil of relay 1 to the power supply. Connect relay 1 to one end of geared motor 32, and the other end of geared motor 32 to the power supply. When push-button switch 5 is pressed, the coil of relay 1 is energized, and geared motor 32 is energized and runs. When push-button switch 5 is pressed again, the coil of relay 1 is de-energized, and geared motor 32 stops running.

[0054] Connect one end of another push button switch 5 to the power supply, and the other end of the push button switch 5 to the second relay. Connect the other end of the coil of the second relay to the power supply. Connect the second relay to the fixed end of the electric push rod 21. The fixed end of the electric push rod 21 is fixedly connected to the power supply. When the push button switch 5 is pressed, the coil of the second relay is energized, and the electric push rod 21 is energized and runs. When the push button switch 5 is pressed again, the coil of the second relay is de-energized, and the electric push rod 21 stops running.

[0055] It should be added that the length of the connecting block 351 and the length of the movable space 362 allow the support plate 352 to rotate 45 degrees clockwise or counterclockwise.

[0056] When the connecting block 351 is in a vertical position, the support plate 352 is in a horizontal position. When the connecting block 351 is rotated 45 degrees clockwise or counterclockwise, the surface of the connecting block 351 contacts the inner surface of the movable space 362, while the outer surface of the support plate 352 contacts the surface of the support base 36.

[0057] Reference Figure 3 An anti-slip seat 37 is attached to the side of the support plate 352 away from the support base 36 via Velcro. The anti-slip seat 37 has U-shaped ends, which are used to limit the limbs. Ventilation holes 371 are provided on the surface of the anti-slip seat 37 away from the support plate 352. The ventilation holes 371 are circular holes. A protrusion 372 is fixed on the surface of the anti-slip seat 37 away from the support plate 352. The protrusion 372 is located between every two ventilation holes 371. Both the anti-slip seat 37 and the protrusion 372 are made of natural rubber. The protrusion 372 is hemispherical.

[0058] With the above-mentioned design, by setting ventilation holes 371 on the surface of the anti-slip seat 37, air circulation can be promoted, allowing sweat to evaporate in time, keeping the skin dry and improving patient comfort. At the same time, the protrusions 372 on the surface of the anti-slip seat 37 increase the friction between the anti-slip seat 37 and the limb surface, which helps to better fix the limb.

[0059] Reference Figures 1-8The surface of the support plate 352 is provided with an adjustment assembly 4 for adjusting the position of the fixing strap 43. The adjustment assembly 4 includes a drive block 41 disposed on one side of the surface of the anti-slip seat 37. An adjustment rod 42 is fixedly disposed at one end of the drive block 41 near the anti-slip seat 37. A movable groove 373 is opened on one side of the surface of the anti-slip seat 37, and the adjustment rod 42 can slide inside the movable groove 373. Positioning blocks 421 are fixedly disposed on both sides of the surface of the adjustment rod 42. Positioning grooves 376 are symmetrically opened on both sides of the inner wall of the movable groove 373, and the positioning blocks 421 can slide inside the positioning grooves 376. The design of the positioning groove 376 ensures that the fixing band 43 will not cause the adjusting rod 42 to disengage from the interior of the movable groove 373 during the stretching process. The fixing band 43 is fixed at the end of the adjusting rod 42 away from the driving block 41. In the initial state, the distance between the fixing band 43 and the anti-slip seat 37 is 5-10cm. After the fixing band 43 can be stretched, the distance between it and the anti-slip seat 37 is 25-60cm. The fixing band 43 is made of natural rubber. The fixing band 43 is in an undeformed state when it is not subjected to external force, and in a deformed state after being subjected to external force.

[0060] With the above setup, the adjustment rod 42 is powered by manually pushing the drive block 41, which in turn drives the adjustment rod 42 to move horizontally. The horizontal movement of the adjustment rod 42 drives the fixing strap 43 to move horizontally, thereby better fixing the position of the fixing strap 43 and enabling the fixing strap 43 to fix the limbs of patients with most limb lengths.

[0061] Reference Figures 5-9 A guide block 44 is fixedly mounted on the end of the fixing band 43 away from the adjusting rod 42. A guide groove 374 is symmetrically formed on the side wall of the anti-slip seat 37 away from the movable groove 373. The guide block 44 can slide inside the guide groove 374. Limiting blocks 443 are fixedly mounted on both sides of the surface of the guide block 44. Strip grooves 377 are formed on both sides of the inner wall of the guide groove 374. The limiting blocks 443 can slide inside the strip grooves 377. Through the design of the limiting blocks 443 and the strip grooves 377, the fixing band 43 will not cause the guide block 44 to detach from the guide groove 374 during the stretching process. The guide block 44 is located away from the side of the fixing band 43. The guide block 44 has a storage groove 441 at one end, and a locking block 45 is provided at one end of the guide block 44 near the storage groove 441. The storage groove 441 can store the locking block 45. A slider 451 is symmetrically fixed on the surface of the locking block 45. A sliding groove 442 is symmetrically opened on the inner wall of the storage groove 441. The slider 451 can slide inside the sliding groove 442. A plurality of locking slots 375 adapted to the locking block 45 are opened on the inner wall of the guide groove 374. The end of the locking block 45 away from the guide block 44 is hemispherical. An elastic element 452 is fixed on one side of the surface of the locking block 45. The end of the elastic element 452 away from the locking block 45 is fixed on the side wall of the storage groove 441.

[0062] With the above configuration, the horizontal movement of the fixing belt 43 provides power, thereby driving the guide block 44 to slide inside the guide groove 374, so that the locking block 45 is squeezed into the storage groove 441, pressing the elastic element 452 and causing the elastic element 452 to deform. When the locking block 45 moves to face other locking grooves 375 during the sliding process of the guide block 44, the locking block 45 can be popped into the locking groove 375 with the help of the elastic element 452, thus completing the fixation of the guide block 44, so that it can be automatically fixed after the position of the fixing belt 43 is adjusted.

[0063] It should be noted that the elastic element 452 is a spring. The spring is calculated using the formula: F = kx, where F is the external force on the spring (N), k is the spring constant (N / m), and x is the spring deformation (m). The elastic force of the spring is then calculated to enable its use in this device.

[0064] The initial state reference of this device Figure 1 .

[0065] The implementation principle of the limb support and fixation device for elbow arthroscopy in this application embodiment is as follows: When using this device, medical staff first move the device to the limb support area using the casters 11 on the base 1. Then, the medical staff manually pulls the fixation strap 43 upwards. The fixation strap 43 deforms due to its own material and simultaneously presses the device. The pressing method can be by stepping on the casters 11, so that the device will not move when the fixation strap 43 is pulled upwards. When the fixation strap 43 is pulled upwards, the gap between it and the surface of the anti-slip seat 37 forms a fixation space for the patient's limb to enter. When the medical staff can visually observe that the independent space is sufficient to wrap the patient's limb, Medical staff move the device towards the patient's limb using the casters 11 on the base 1, allowing the fixing space between the fixing strap 43 and the anti-slip seat 37 to pass over the patient's limb. When both fixing straps 43 are above the patient's limb, and the fixing straps 43 have moved to what the medical staff considers the most stable fixing position, the medical staff gradually reduce the tension on the fixing straps 43, allowing the fixing straps 43 to gradually move closer to the patient's limb. When the other surfaces of the fixing straps 43 are in contact with the patient's limb, the fixing straps 43 are released. The elastic force of the fixing straps 43 restores its deformation, allowing all surfaces of the fixing straps 43 to contact the patient's limb, thus completing the positioning of the patient's limb.

[0066] By providing ventilation holes 371 on the surface of the anti-slip seat 37, air circulation can be promoted, allowing sweat to evaporate in time, keeping the skin dry and improving patient comfort. At the same time, protrusions 372 are provided on the surface of the anti-slip seat 37 to increase the friction between the anti-slip seat 37 and the limb surface. The combination design of the protrusions 372 and the fixing strap 43 can improve the fixation effect of the anti-slip seat 37 on the limb.

[0067] When medical staff need to adjust the angle of a patient's limb, they press the button switch 5, which is connected to the geared motor 32 on one side of the lifting box 2, to start the geared motor 32. The output end of the geared motor 32 drives the worm gear 33 to rotate, which in turn drives the worm wheel 34 to rotate. The worm wheel 34 then drives the rotating shaft 35 to rotate, which in turn drives the connecting block 351 to flip. The connecting block 351 then drives the support plate 352 to flip, which in turn drives the anti-slip seat 37 to flip, thereby adjusting the angle of the patient's limb. Once the medical staff can visually observe that the patient's limb has been adjusted to the required angle, they press the button switch 5 connected to the geared motor 32 again to turn off the geared motor 32.

[0068] When medical staff need to adjust the height of a patient's limb, they press the button switch 5, which is connected to the electric push rod 21 on one side of the lifting box 2, to activate the electric push rod 21. The telescopic end of the electric push rod 21 extends, driving the support base 36 to move up and down. The support base 36 then drives the limb positioning mechanism 3 to move up and down, thereby adjusting the height of the patient's limb. When the patient's limb is adjusted to the height required by the medical staff, the button switch 5 connected to the electric push rod 21 is pressed again to close the electric push rod 21.

[0069] When medical staff need to change the position of the fixation strap 43, they can manually push the drive block 41 to move it horizontally. The drive block 41 drives the adjustment rod 42 to move horizontally, and the adjustment rod 42 drives the fixation strap 43 to move horizontally, thereby better fixing the position of the strap 43. This allows the fixation strap 43 to select a suitable fixation position for patients with most limb lengths, so that the surgery will not be affected by an unsuitable fixation position.

[0070] When the fixing belt 43 moves horizontally, it drives the guide block 44 to slide inside the guide groove 374. When the guide block 44 slides inside the guide groove 374, it drives the locking block 45 to move. During the movement, the locking block 45 disengages from the original locking groove 375. The hemispherical shape of the end of the locking block 45 away from the guide block 44 is pressed into the receiving groove 441 by the inner wall of the guide groove 374. After being pressed into the receiving groove 441, the locking block 45 presses the elastic element 452, causing the elastic element 452 to deform. During the process of the locking block 45 moving from the original position of the locking groove 375 to other positions of the locking groove 375, the locking block 45 is always... When the card block 45 is pressed into the storage slot 441, and the card block 45 moves from its original position in the slot 375 to another position where the slots 375 are facing each other, the inner wall of the storage slot 441 will not press the card block 45. This causes the elastic element 452 to lose the pressing force from the card block 45, and the elastic element 452 returns to its original shape. Under the rebound force of the elastic element 452, the card block 45 pops out again into the other slot 375, thereby fixing the guide block 44 inside the guide groove 374. This ensures that the fixing strap 43 is automatically fixed inside the anti-slip seat 37 after the position is changed, ensuring that the fixing strap 43 remains in the set position after the change.

[0071] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An arthroscopic elbow limb support fixation device, characterized by: Includes a support plate (352), on the surface of the support plate (352) are symmetrically provided with fixing straps (43), and on the side of the support plate (352) away from the fixing straps (43) is provided a limb positioning mechanism (3) for positioning the limb and adjusting the angle; The limb positioning mechanism (3) includes a connecting block (351) symmetrically fixed on one side of the surface of the support plate (352). A support seat (36) is provided on the side of the support plate (352) near the connecting block (351). The support seat (36) has an active space (362) for the connecting block (351) to rotate on the side near the support plate (352). When the connecting block (351) is in a vertical state, the support plate (352) is in a horizontal state.

2. The arthroscopic elbow support and immobilization device of claim 1, wherein: The limb positioning mechanism (3) further includes a drive box (31) disposed on one side of the surface of the support plate (352). A reduction motor (32) is fixed inside the drive box (31). A worm (33) rotatably disposed inside the drive box (31) is fixed at the output end of the reduction motor (32). A worm wheel (34) meshing with the worm (33) is disposed inside the drive box (31). A rotating shaft (35) penetrating the side wall of the drive box (31) is fixed at the end of the worm wheel (34) away from the worm (33). The end of the connecting block (351) away from the support plate (352) is fixed on the surface of the rotating shaft (35). An anti-slip seat (37) is fixed on the side of the support plate (352) away from the connecting block (351). The anti-slip seat (37) is provided with a vent hole (371) and a protrusion (372) on the surface away from the support plate (352). An adjustment component (4) for adjusting the position of the fixing strap (43) is provided on the surface of the support plate (352).

3. The arthroscopic elbow support and immobilization device of claim 2, wherein: The adjustment assembly (4) includes an adjustment rod (42) fixed to one side of the surface of the fixing belt (43). The adjustment rod (42) is slidably disposed on the inner surface of the anti-slip seat (37). A driving block (41) is fixedly disposed at one end of the adjustment rod (42) away from the fixing belt (43). A guide block (44) is fixedly disposed at one end of the fixing belt (43) away from the adjustment rod (42). The guide block (44) is slidably disposed on the inner surface of the anti-slip seat (37). A locking block (45) is slidably disposed at one end of the guide block (44) away from the fixing belt (43) and engaged with the inner wall of the anti-slip seat (37).

4. The arthroscopic elbow support and immobilization device of claim 3, wherein: One side of the surface of the card block (45) is fixed with an elastic element (452) that is fixed inside the guide block (44).

5. The arthroscopic elbow support and immobilization device of claim 3, wherein: A lifting box (2) is slidably provided at one end of the support base (36) away from the support plate (352). An electric push rod (21) is provided inside the lifting box (2). The telescopic end of the electric push rod (21) is fixed to one end of the support base (36) away from the support plate (352).

6. The arthroscopic elbow support and immobilization device of claim 3, wherein: The anti-slip seat (37), protrusion (372), and fixing strap (43) are all made of natural rubber.

7. The arthroscopic elbow support and immobilization device of claim 1, wherein: The fixing band (43) is in an undeformed state when it is not subjected to external force, and the fixing band (43) is in a deformed state after being subjected to external force.

8. The arthroscopic elbow support and immobilization device of claim 6, wherein: The protrusion (372) is hemispherical. The protrusion (372) is hemispherical.

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