Orthopedic joint replacement operation simulation device structure capable of being adjusted at multiple angles

Abstract

The invention provides an orthopedic joint replacement operation simulation device structure capable of being adjusted at multiple angles, and relates to the technical field of medical apparatuses and instruments. Four groups of lifting seats are mounted at the upper end of the bottom frame through bolts, a partition plate is mounted above the four groups of lifting seats, a first sliding plate slides on the partition plate, and a rail plate is mounted on the first sliding plate through bolts; the operation simulation effect is improved through various adjusting structures, the device height can be accurately adjusted by rotating a second hand wheel on a lifting seat on the left rear side of a bottom frame, a first sliding plate and a second sliding plate slide through cooperation of a first lead screw and a first motor and cooperation of a second lead screw and a second motor respectively, and a first overturning plate can be overturned by operating a first hand wheel; a rotating rod in the mounting seat drives the turntable to rotate; and a third motor is matched with a connecting base on the mounting frame to achieve overturning of a second overturning plate, the multi-angle overturning and rotating functions are beneficial for an operator to comprehensively understand the joint structure, and the surgical operation proficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a structure of an orthopedic joint replacement surgery simulation device that can be adjusted at multiple angles. Background Art

[0002] In the field of modern medicine, knee joint replacement surgery, as an effective means for treating severe knee joint diseases such as osteoarthritis, rheumatoid arthritis, traumatic arthritis, etc., has been widely applied. This surgery aims to relieve the pain of patients, correct deformities, and restore the function of the knee joint, thereby improving the quality of life of patients. However, knee joint replacement surgery is a highly complex and challenging surgical operation, and its successful implementation depends on the excellent surgical skills and rich clinical experience of surgical medical staff. For surgical medical staff, mastering the skills of knee joint replacement surgery is not achieved overnight and requires a large amount of practical practice. Therefore, a structure of an orthopedic joint replacement surgery simulation device that can be adjusted at multiple angles is designed.

[0003] Existing orthopedic joint replacement surgery simulation training devices cannot provide rich scene changes, and it is difficult for operators to fully adapt to the adjustment requirements of the position and angle of the knee joint model in actual surgery, reducing the quality and effect of surgical operation training. Summary of the Invention

[0004] Embodiments of the present disclosure relate to a structure of an orthopedic joint replacement surgery simulation device that can be adjusted at multiple angles to solve the technical problems raised in the above background art.

[0005] In a first aspect of the present disclosure, a structure of an orthopedic joint replacement surgery simulation device that can be adjusted at multiple angles is provided, specifically including: a chassis;

[0006] Four sets of moving wheels are installed at the lower end of the chassis through bolts, four sets of lifting seats are installed at the upper end of the chassis through bolts, a partition is installed above the four sets of lifting seats, a first sliding plate slides on the partition, a rail plate is installed on the first sliding plate through bolts, a second sliding plate slides on the rail plate, a first support and a second support are installed on the second sliding plate through bolts, rotating columns are installed on both the first support and the second support through bearings, first flipping plates are installed on both sets of rotating columns through bolts, and a worm gear is fixed on the rotating column of the first support, and a driving rod is installed on the first support through a bearing, a worm is fixed on the driving rod, the worm meshes with the worm gear, a first handwheel is installed on the driving rod, a mounting seat is installed on the first flipping plate through bolts, a support plate is installed on the mounting seat through bolts, and a rotating rod is installed in the mounting seat through a bearing, and a turntable is fixed at the upper end of the rotating rod.

[0007] In at least some embodiments,

[0008] Two sets of transmission seats are installed on the chassis through bolts. The four lifting seats are connected and driven by the two sets of transmission seats. A second handwheel is installed on the lifting seat near the left rear side of the chassis. A worm is arranged inside the lifting seat. A support rod is installed inside the lifting seat. Threads are provided on the support rod. A worm gear is installed inside the lifting seat. The worm gear is in threaded cooperation with the support rod. The partition board is installed at the upper ends of the four support rods.

[0009] In at least some embodiments,

[0010] A first lead screw is installed on the partition board through a bearing. A first motor is installed on the partition board through bolts. The output shaft of the first motor is connected to the first lead screw. The first lead screw is in threaded cooperation with the lower end of the first sliding plate.

[0011] In at least some embodiments,

[0012] A second lead screw is installed on the rail plate through a bearing. The second lead screw is in threaded cooperation with the lower end of the second sliding plate. A second motor is installed on the rail plate through bolts. The output shaft of the second motor is connected to the second lead screw.

[0013] In at least some embodiments,

[0014] A left slider and a right slider slide on the support plate. Rack plates are fixed on both the left slider and the right slider. A gear is fixed on the rotating rod. The rack plates on the left slider and the right slider are both meshed with the gear on the rotating rod.

[0015] In at least some embodiments,

[0016] Two sets of limit seats are installed on the support plate through bolts. Limit bolts are screwed on both sets of limit seats. The two limit bolts are respectively located in front of and behind the right slider. A cylinder seat is installed on the support plate through bolts. A first hydraulic rod is installed on the cylinder seat through bolts. The piston rod of the first hydraulic rod is fixedly connected to the left slider.

[0017] In at least some embodiments,

[0018] An installation frame is installed on the turntable through bolts. Two sets of connection seats are installed on the installation frame through bearings. A second flipping plate is installed between the two sets of connection seats. A pulley is fixed on the connection seat near the front end of the installation frame. A third motor is installed on the installation frame through bolts. A pulley is fixed on the output shaft of the third motor. A transmission belt is connected between the two pulleys.

[0019] In at least some embodiments,

[0020] Two sets of U-shaped seats are installed on the second flipping plate through bolts. Hinge frames are installed on both sets of U-shaped seats. Second hydraulic rods are installed on the hinge frames through bolts. A top seat is fixed on the U-shaped seat. A third hydraulic rod is installed at the lower end of the top seat through bolts.

[0021] In at least some embodiments,

[0022] A top plate is installed on the top seat, and a supporting column is movable on the top plate. The supporting column is made of rubber. The piston rod of the third hydraulic rod contacts the lower end of the supporting column, and a hinge seat is installed on the top seat by bolts.

[0023] In at least some embodiments,

[0024] A connecting plate is installed on the hinge seat, and a lower pressing plate is installed on the connecting plate by a pin shaft. Moreover, the lower pressing plate is connected to the piston rod of the second hydraulic rod by a pin shaft. A knee joint model is arranged on the second turning plate, and the knee joint model is clamped on the supporting column by the lower pressing plate.

[0025] The present invention provides a structure of an orthopedic joint replacement surgery simulation device that can be adjusted at multiple angles, having the following beneficial effects:

[0026] In the present invention, by operating the second handwheel on the lifting seat near the left rear side of the chassis, precise adjustment of the device height can be achieved. The first sliding plate on the partition board and the second sliding plate on the rail board respectively achieve sliding through the cooperation of the first lead screw and the first motor, and the second lead screw and the second motor. The rotating columns on the first support and the second support cooperate with the first handwheel to enable the flipping of the first turning plate; the rotating rod in the mounting seat drives the turntable to rotate. In addition, the connecting seat on the mounting frame and the third motor cooperate to enable the flipping of the second turning plate. These multi-angle flipping and rotating functions allow the operator to more comprehensively understand the joint structure during the surgery simulation process, improving the proficiency and accuracy of surgical operations.

[0027] In addition, in the present invention, the left slider and the right slider on the supporting plate are meshed with the gear on the rotating rod through a toothed plate, and further cooperate with the drive of the first hydraulic rod to be able to more flexibly adjust the simulation angle, further improving the quality and effect of surgical operation training. The synergistic effect of the supporting column, the third hydraulic rod, and the lower pressing plate on the top plate can firmly fix the knee joint model on the second turning plate. Combining the rotating function of the first hydraulic rod on the turntable, it can simulate the surgical scenario from more dimensions, greatly contributing to improving the surgical skills of the operator and the ability to handle complex situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0029] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0030] In the drawings:

[0031] Figure 1A schematic diagram showing the overall structure of the present application;

[0032] Figure 2 Shows the Figure 1 Enlarged structural schematic diagram of part A in;

[0033] Figure 3 Schematic diagram showing the structure of the first flip plate part of the present application;

[0034] Figure 4 Shows the Figure 3 Enlarged structural schematic diagram of part B in;

[0035] Figure 5 Schematic diagram showing the structure of the pallet part of the present application;

[0036] Figure 6 Schematic diagram showing the structure of the mounting bracket part of the present application;

[0037] Figure 7 Shows the Figure 6 Enlarged structural schematic diagram of part C in;

[0038] Figure 8 Schematic diagram showing the structure of the U-shaped seat part of the present application.

[0039] List of reference numerals

[0040] 1. Chassis; 11. Movable wheels; 12. Lifting seat; 121. Second handwheel; 122. Support rod; 13. Transmission seat; 14. Partition; 141. First sliding plate; 1411. First lead screw; 1412. First motor; 15. Rail plate; 151. Second lead screw; 152. Second motor; 16. Second sliding plate; 17. First support; 171. Driving rod; 1711. First handwheel; 172. Rotating column; 173. First flip plate; 18. Second support;

[0041] 2. Mounting seat; 21. Pallet; 22. Rotating rod; 23. Left slider; 24. Right slider; 241. Limit seat; 242. Limit bolt; 25. Cylinder seat; 251. First hydraulic rod; 26. Turntable; 27. Mounting bracket; 271. Connecting seat; 272. Second flip plate; 273. Third motor; 274. Transmission belt;

[0042] 3. U-shaped seat; 31. Hinge frame; 311. Second hydraulic rod; 32. Top seat; 321. Third hydraulic rod; 322. Hinge seat; 323. Connecting plate; 324. Lower pressing plate; 33. Top plate; 331. Supporting column;

[0043] 4. Knee joint model. Detailed implementation manners

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0045] Embodiment 1: Please refer to Figures 1 to 8 :

[0046] The present invention provides a structure of an orthopedic joint replacement surgery simulation device that can be adjusted at multiple angles, including: a chassis 1;

[0047] Four sets of moving wheels 11 are installed at the lower end of the chassis 1 by bolts, four sets of lifting seats 12 are installed at the upper end of the chassis 1 by bolts, a partition 14 is installed above the four sets of lifting seats 12, a first sliding plate 141 slides on the partition 14, a rail plate 15 is installed on the first sliding plate 141 by bolts, a second sliding plate 16 slides on the rail plate 15, a first support 17 and a second support 18 are installed on the second sliding plate 16 by bolts, a rotating column 172 is installed on both the first support 17 and the second support 18 through bearings, a first flip plate 173 is installed on both sets of rotating columns 172 by bolts, and a worm gear is fixed on the rotating column 172 on the first support 17, and a driving rod 171 is installed on the first support 17 through a bearing, a worm is fixed on the driving rod 171, the worm meshes with the worm gear, a first handwheel 1711 is installed on the driving rod 171, a mounting seat 2 is installed on the first flip plate 173 by bolts, a support plate 21 is installed on the mounting seat 2 by bolts, and a rotating rod 22 is installed in the mounting seat 2 through a bearing, and a turntable 26 is fixed at the upper end of the rotating rod 22.

[0048] In the embodiments of the present disclosure,

[0049] Two sets of transmission seats 13 are installed on the chassis 1 by bolts, the four sets of lifting seats 12 are connected and transmitted through the two sets of transmission seats 13, and a second handwheel 121 is installed on the lifting seat 12 near the left rear side of the chassis 1. A worm is provided in the lifting seat 12, a support rod 122 is installed in the lifting seat 12, a thread is provided on the support rod 122, a worm gear is installed inside the lifting seat 12, and the worm gear is in threaded cooperation with the support rod 122. The partition 14 is installed at the upper ends of the four support rods 122. Its function is: two sets of transmission seats 13 are installed on the chassis 1 by bolts, and the four sets of lifting seats 12 are connected and transmitted through these two sets of transmission seats 13, so that the four sets of lifting seats 12 form a linkage integral structure. The transmission seats 13 play a role in connecting and transmitting power, ensuring that the four sets of lifting seats 12 can operate synchronously, so that the device remains stable during the height adjustment process.

[0050] In the embodiments of the present disclosure,

[0051] On the partition plate 14, a first lead screw 1411 is installed through a bearing, and a first motor 1412 is installed on the partition plate 14 through bolts. The output shaft of the first motor 1412 is connected to the first lead screw 1411. The first lead screw 1411 is in threaded cooperation with the lower end of the first sliding plate 141. On the rail plate 15, a second lead screw 151 is installed through a bearing. The second lead screw 151 is in threaded cooperation with the lower end of the second sliding plate 16. And a second motor 152 is installed on the rail plate 15 through bolts. The output shaft of the second motor 152 is connected to the second lead screw 151. Its function is that the horizontal sliding adjustment functions of the first sliding plate 141 and the second sliding plate 16 cooperate with each other, providing an operation environment closer to the actual surgical situation for orthopedic joint replacement surgery simulation. The operator can adjust the positions of the first sliding plate 141 and the second sliding plate 16 respectively by controlling the first motor 1412 and the second motor 152 according to the simulation requirements, improving the authenticity and accuracy of the surgical simulation, and helping to improve the surgical skills of the operator and the ability to handle actual surgeries.

[0052] In the embodiments of the present disclosure,

[0053] On the support plate 21, a left slider 23 and a right slider 24 slide. Tooth plates are fixed on both the left slider 23 and the right slider 24. A gear is fixed on the rotating rod 22. The tooth plates on the left slider 23 and the right slider 24 are both meshed with the gear on the rotating rod 22. Two groups of limit seats 241 are installed on the support plate 21 through bolts. Limit bolts 242 are screwed on both groups of limit seats 241. The two groups of limit bolts 242 are respectively located in front of and behind the right slider 24. A cylinder seat 25 is installed on the support plate 21 through bolts. A first hydraulic rod 251 is installed on the cylinder seat 25 through bolts. The piston rod of the first hydraulic rod 251 is fixedly connected to the left slider 23. Its function is that the piston rod of the first hydraulic rod 251 is fixedly connected to the left slider 23. By controlling the expansion and contraction of the first hydraulic rod 251, the left slider 23 can be accurately pushed to move. The tooth plate on the left slider 23 can drive the rotating rod 22 to rotate, and finally the turntable 26 can be rotated. The two groups of limit bolts 242 can limit the extreme positions of the right slider 24, realizing the limitation of the rotation amplitude of the turntable 26.

[0054] Embodiment 2, on the basis of Embodiment 1,

[0055] An installation frame 27 is mounted on the turntable 26 by bolts. Two sets of connecting seats 271 are mounted on the installation frame 27 through bearings. A second turning plate 272 is mounted between the two sets of connecting seats 271. A pulley is fixed on the connecting seat 271 near the front end of the installation frame 27. A third motor 273 is mounted on the installation frame 27 by bolts. A pulley is fixed on the output shaft of the third motor 273. A transmission belt 274 is connected between the two pulleys. Its function is: when the third motor 273 is started, its output shaft drives the pulley on itself to rotate, and the power is transmitted to the pulley on the connecting seat 271 through the transmission belt 274, thereby driving the connecting seat 271 to rotate, and finally realizing the turning of the second turning plate 272 around the connecting seat 271 to simulate the state of the patient's knee joint in various surgical positions.

[0056] Embodiment 3, on the basis of Embodiment 1 and Embodiment 2,

[0057] Two sets of U-shaped seats 3 are mounted on the second turning plate 272 by bolts. Hinge frames 31 are mounted on both sets of U-shaped seats 3. Second hydraulic rods 311 are mounted on the hinge frames 31 by bolts. A top seat 32 is fixed on the U-shaped seat 3. A third hydraulic rod 321 is mounted on the lower end of the top seat 32 by bolts. A top plate 33 is mounted on the top seat 32. A support column 331 is movable on the top plate 33. The support column 331 is made of rubber. The piston rod of the third hydraulic rod 321 contacts the lower end of the support column 331. A hinge seat 322 is mounted on the top seat 32 by bolts. A connecting plate 323 is mounted on the hinge seat 322. A lower pressing plate 324 is mounted on the connecting plate 323 through a pin shaft, and the lower pressing plate 324 is connected to the piston rod of the second hydraulic rod 311 through a pin shaft. A knee joint model 4 is arranged on the second turning plate 272. The knee joint model 4 is clamped on the support column 331 through the lower pressing plate 324. Its function is: the second hydraulic rod 311 mounted on the hinge frame 31 is connected to the lower pressing plate 324 through the connecting plate 323 and the pin shaft. By controlling the expansion and contraction of the second hydraulic rod 311, the angle of the lower pressing plate 324 can be changed. This angle adjustment function can adapt to knee joint models 4 of different shapes and sizes, ensure that the lower pressing plate 324 can closely fit the knee joint model 4, and realize effective clamping and fixing.

[0058] Working principle of this embodiment: Adjust the extending length of the piston rod of the third hydraulic rod 321 to make it push the supporting column 331 upward to apply a vertical supporting force to the knee joint model 4. At the same time, control the telescoping of the piston rod of the second hydraulic rod 311. Drive the lower pressing plate 324 to rotate through the hinge frame 31, the connecting plate 323 and the pin shaft, apply a downward pressure to the knee joint model 4, and firmly clamp it on the supporting column 331. The four sets of moving wheels 11 installed at the lower end of the chassis 1 enable the device to move easily on different sites, facilitating the change of the device position according to the needs of teaching, scientific research, etc. Start the first motor 1412 on the partition plate 14, and its output shaft drives the first lead screw 1411 connected thereto to rotate. Since the first lead screw 1411 is in threaded cooperation with the lower end of the first sliding plate 141, the rotation of the first lead screw 1411 is converted into the horizontal sliding of the first sliding plate 141 on the partition plate 14, simulating the horizontal movement of instruments or observation perspectives during surgery at this level. The second sliding plate 16 slides: After the second motor 152 on the rail plate 15 is started, its output shaft drives the second lead screw 151 to rotate. The second lead screw 151 is in threaded cooperation with the lower end of the second sliding plate 16, causing the second sliding plate 16 to slide horizontally on the rail plate 15, further enriching the simulation scenario in the horizontal direction. Rotate the first handwheel 1711 to make the driving rod 171 rotate, and the worm fixed on the driving rod 171 rotates accordingly. The worm gear meshing with the worm drives the rotating column 172 to rotate, and further enables the first turning plate 173 fixed on the rotating column 172 to turn, simulating the turning state of the joint at a specific angle. Control the telescoping of the piston rod of the first hydraulic rod 251 to push the left slider 23 fixedly connected thereto to move. The left slider 23 meshes with the gear on the rotating rod 22 through the toothed plate, driving the rotating rod 22 to rotate, and making the turntable 26 fixed at the upper end of the rotating rod 22 rotate, providing a different angular basis for the simulated surgery. Turn on the third motor 273, the pulley on its output shaft rotates, and drives the pulley on the connecting seat 271 near the front end of the mounting frame 27 to rotate through the transmission belt 274, so that the connecting seat 271 rotates, realizing the turning of the second turning plate 272 installed between the two sets of connecting seats 271, further enriching the joint simulation angles and enabling the operator to more comprehensively understand the joint structure.

[0059] In this article, the following points need to be noted:

[0060] 1. The drawings of the embodiments of this disclosure only relate to the structures involved in the embodiments of this disclosure, and other structures can refer to the general design.

[0061] 2. Without conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0062] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure.

Claims

1. A multi-angle adjustable orthopedic joint replacement surgery simulation device structure, comprising: The chassis (1) is characterized in that: Four groups of moving wheels (11) are installed at the lower end of the base frame (1), four groups of lifting seats (12) are installed at the upper end of the base frame (1), a partition (14) is installed above the four groups of lifting seats (12), a first sliding plate (141) slides on the partition (14), a rail plate (15) is installed on the first sliding plate (141), a second sliding plate (16) slides on the rail plate (15), a first support (17) and a second support (18) are installed on the second sliding plate (16), a rotating column (172) is installed on the first support (17) and the second support (18) through a bearing, and the two groups of rotating columns (172) ) are both mounted with a first flip plate (173) by bolts, and a worm wheel is fixed on a rotating column (172) on a No. 1 support (17), and a driving rod (171) is mounted on the No. 1 support (17) via a bearing, a worm is fixed on the driving rod (171), the worm is meshed with the worm wheel, a No. 1 hand wheel (1711) is mounted on the driving rod (171), a mounting seat (2) is mounted on the first flip plate (173), a supporting plate (21) is mounted on the mounting seat (2), and a rotating rod (22) is mounted in the mounting seat (2) via a bearing, and a rotating disk (26) is fixed on the upper end of the rotating rod (22).

2. The multi-angle adjustable orthopedic joint replacement surgery simulation device structure according to claim 1 is characterized in that: Two groups of transmission seats (13) are installed on the base frame (1), and the four groups of lifting seats (12) are connected and transmitted through the two groups of transmission seats (13), and a second hand wheel (121) is installed on the lifting seat (12) close to the left rear side of the base frame (1), a worm is arranged in the lifting seat (12), a support rod (122) is installed in the lifting seat (12), and a thread is arranged on the support rod (122), a worm wheel is installed inside the lifting seat (12), and the worm wheel and the support rod (122) are threadedly matched, and a partition plate (14) is installed on the upper ends of the four groups of support rods (122).

3. The multi-angle adjustable orthopedic joint replacement surgery simulation device structure according to claim 1 is characterized in that: A first screw rod (1411) is mounted on the partition (14) via a bearing, and a first motor (1412) is mounted on the partition (14), an output shaft of the first motor (1412) is connected to the first screw rod (1411), and the first screw rod (1411) is threadedly matched with the lower end of the first sliding plate (141).

4. The multi-angle adjustable orthopedic joint replacement surgery simulation device structure according to claim 1 is characterized in that: A second screw rod (151) is mounted on the rail plate (15) via a bearing, the second screw rod (151) is threadedly matched with the lower end of the second sliding plate (16), and a second motor (152) is mounted on the rail plate (15), the output shaft of the second motor (152) is connected to the second screw rod (151).

5. The multi-angle adjustable orthopedic joint replacement surgery simulation device structure according to claim 1 is characterized in that: A left slider (23) and a right slider (24) are slidably mounted on the support plate (21), toothed plates are fixed on the left slider (23) and the right slider (24), a gear is fixed on the rotating rod (22), and the toothed plates on the left slider (23) and the right slider (24) are meshed with the gear on the rotating rod (22).

6. The multi-angle adjustable orthopedic joint replacement surgery simulation device structure according to claim 5, characterized in that: Two groups of limit seats (241) are installed on the support plate (21), and limit bolts (242) are threadedly screwed on the two groups of limit seats (241). The two groups of limit bolts (242) are respectively located at the front and rear of the right slider (24). A cylinder seat (25) is installed on the support plate (21), and a No. 1 hydraulic rod (251) is installed on the cylinder seat (25). The piston rod of the No. 1 hydraulic rod (251) is fixedly connected to the left slider (23).

7. The multi-angle adjustable orthopedic joint replacement surgery simulation device structure according to claim 1, characterized in that: The rotating disc (26) is mounted with a mounting frame (27), two groups of connecting seats (271) are mounted on the mounting frame (27) via bearings, a second flip plate (272) is mounted between the two groups of connecting seats (271), a belt pulley is fixed on the connecting seat (271) close to the front end of the mounting frame (27), a No. 3 motor (273) is mounted on the mounting frame (27), a belt pulley is fixed on the output shaft of the No. 3 motor (273), and a transmission belt (274) is connected between the two groups of belt pulleys.

8. The multi-angle adjustable orthopedic joint replacement surgery simulation device structure according to claim 7, characterized in that: Two groups of U-shaped seats (3) are installed on the second flip plate (272), and both groups of U-shaped seats (3) are installed with articulated frames (31), and a second hydraulic rod (311) is installed on the articulated frame (31). A top seat (32) is fixed on the U-shaped seat (3), and a third hydraulic rod (321) is installed at the lower end of the top seat (32).

9. The multi-angle adjustable orthopedic joint replacement surgery simulation device structure according to claim 8, characterized in that: A top plate (33) is installed on the top seat (32), a support column (331) is movably provided on the top plate (33), the support column (331) is made of rubber material, a piston rod of the third hydraulic rod (321) contacts the lower end of the support column (331), and a hinge seat (322) is installed on the top seat (32).

10. The multi-angle adjustable orthopedic joint replacement surgery simulation device structure according to claim 9, characterized in that: A connecting plate (323) is installed on the hinge seat (322), a lower pressing plate (324) is installed on the connecting plate (323) via a pin shaft, and the lower pressing plate (324) is connected to the piston rod of the second hydraulic rod (311) via the pin shaft, and a knee joint model (4) is arranged on the second flip plate (272), and the knee joint model (4) is clamped on the supporting column (331) via the lower pressing plate (324).

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