A vertebral lifting and reduction system

Abstract

The present invention relates to a novel vertebral lifting and reduction system, the innovation of which is that it includes a fixed frame mechanism for fixing on both sides of an operating table, a bone holding mechanism for clamping the transverse processes at both ends of a slipped vertebral body, and a lifting and adjusting and reducing mechanism for adjusting the bone holding mechanism, the two ends of the lifting and adjusting and reducing mechanism are respectively assembled and connected with the fixed frame mechanism and the bone holding mechanism, and the height of the bone holding mechanism is adjusted by the lifting and adjusting and reducing mechanism, when the bone holding mechanism clamps the transverse processes at both ends of the slipped vertebral body, the bone holding mechanism is locked, and the bone holding mechanism and the clamped vertebral body are synchronously lifted by the lifting and adjusting and reducing mechanism to achieve the lifting and reducing of the slipped vertebral body. The present invention can directly lift the transverse processes at both ends of the slipped vertebral body to achieve the purpose of reducing the slipped vertebral body, replacing the reduction using pedicle screws in the prior art.

Description

Technical Field

[0001] The invention relates to a lifting and resetting system, in particular to a vertebral lifting and resetting system suitable for orthopedics, and belongs to the technical field of medical devices. Background Art

[0002] Vertebral dislocation and scoliosis are relatively common clinical orthopedic reduction manifestations. The dislocated and scoliotic vertebrae compress the nerves or the excessive tissue tension caused by spinal instability causes severe pain to the patient. Therefore, vertebral reduction and spinal correction are a reduction treatment surgery based on restoring the anatomical position of the displaced vertebra, balancing the inside and outside of the spine, relieving the pressure around the spine to adapt it to the surrounding muscle groups, relieving the compression of the vertebrae on the nerve roots, and improving the blood flow of the vertebral arteries.

[0003] Vertebral reduction surgery is widely used in orthopedic surgery, and its advantages are simple surgery and stable structure. In traditional technology, vertebral reduction is to implant pedicle screws into the pedicles of the vertebral body in advance, and then use the lifting and reduction tool to perform the lifting operation until the patient's slipped vertebral body returns to its original position. However, this structure of intramedullary nails also has the following defects: First, since the principle of conventional surgical methods is to reposition the patient's vertebral body by lifting the vertebral body, if the vertebral body has osteoporosis, the scheme will fail; second, the traditional surgical scheme requires the cooperation of multiple instruments, which increases the difficulty of the operation; third, the traditional surgical scheme requires drilling the patient's vertebral body and implanting the pedicle screws into the body, which increases the possibility of complications after surgery; fourth, the traditional surgical scheme requires the operator to continuously lift the dislocated vertebral body, which increases the physical energy consumption of the operator. Summary of the invention

[0004] The purpose of the present invention is to provide a method of directly lifting the transverse processes at both ends of the slipped vertebral body to achieve the purpose of resetting the slipped vertebral body, replacing the vertebral lifting and resetting system using pedicle screws in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a vertebral lifting and reduction system, whose innovation lies in: it includes a fixed frame mechanism used to be fixed on both sides of the operating table, a bone holding mechanism used to clamp the transverse processes at both ends of the slipped vertebra, and a lifting and adjusting and reducing mechanism used to adjust the bone holding mechanism. The two ends of the lifting and adjusting and reducing mechanism are respectively assembled and connected with the fixed frame mechanism and the bone holding mechanism, and the height of the bone holding mechanism is adjusted by the lifting and adjusting and reducing mechanism. After the bone holding mechanism clamps the transverse processes at both ends of the slipped vertebra, the bone holding mechanism is locked, and the bone holding mechanism and the clamped vertebra are synchronously lifted by the lifting and adjusting and reducing mechanism to realize the lifting and reduction of the slipped vertebra.

[0006] In the above technical solution, the fixed frame mechanism includes a fixed block, a connecting rod, a cross bar, a connecting rod locking handle and a fixed block locking handle. A fixed block locking handle is provided on the top of the fixed block, and the two ends of the cross bar are respectively assembled and connected with one end of the corresponding connecting rod, and the fixed block and the other end of the connecting rod are locked into one by the connecting rod locking handle.

[0007] In the above technical solution, the fixed frame mechanism also includes an adjustment base and a fixed block anti-rotation sleeve, the other end of the connecting rod is inserted into a socket provided in the adjustment base, and the fixed block is sleeved on the outer periphery of one end of the adjustment base, the adjustment base is arranged in the inner cavity of the fixed block anti-rotation sleeve, and the fixed anti-rotation sleeve abuts against the fixed block;

[0008] The fixing block is provided with a bed frame slot, and a first locking pin is screwed into the bed frame slot on the top of the fixing block. The first locking pin is hingedly connected to the fixing block locking handle. When the fixing block is mounted on the bed frame, the fixing block locking handle is rotated to make the end surface of the first locking pin contact the bed frame, so that the fixing block and the bed frame are fixed together.

[0009] A second locking pin is provided on the outer end surface of the adjustment base and is screwed into the socket. The connecting rod locking handle is hingedly connected to the second locking pin. The connecting rod locking handle is rotated to make the end surface of the second locking pin abut against the connecting rod in the socket of the adjustment base, thereby fastening the connecting rod and the adjustment base as a whole.

[0010] In the above technical solution, a guide flange is provided at the bottom of the fixing block near the bed frame slot, the fixing block is provided with a stop tooth, the fixed stop sleeve is provided with a stop tooth groove, and the stop tooth is meshed with the stop tooth groove.

[0011] In the above technical solution, the fixed frame mechanism also includes a connecting head, a connecting sleeve is provided at one end of the connecting rod, and the two ends of the cross bar are respectively detachably connected to the corresponding connecting heads. The connecting sleeve is sleeved on the outer periphery of the connecting head, and a tightening sleeve threadedly connected to the connecting head and located on the outer side of the connecting sleeve is provided on the connecting head.

[0012] In the above technical scheme, the fixed frame mechanism includes a cross bar, and the lifting and lowering adjustment and resetting mechanism includes a slider, a threaded pull rod, a pull rod sleeve, a stop clamp, a tightening nut and a lifting handle. A groove is provided on the inner wall of the pull rod sleeve and along its circumferential direction. The tightening nut is fixedly connected with the stop clamp, and the stop clamp is sleeved on one end of the threaded pull rod. The pull rod sleeve is arranged on the outer periphery of the threaded pull rod and the stop clamp, and the lower edge of the stop clamp is clamped in the groove of the pull rod sleeve. The outer wall of the pull rod sleeve is fixedly connected to the slider, and the slider is sleeved on the cross bar and slidably cooperates with it. A lifting handle is provided at the end of one end of the threaded pull rod.

[0013] In the above technical scheme, the lifting and lowering adjustment and resetting mechanism includes a threaded pull rod, and the bone holding mechanism includes a first bone holding forceps, a second bone holding forceps, a bone holding forceps locking rod, a bone holding forceps locking head and a limit block. The first bone holding forceps and the second bone holding forceps are hingedly connected, and the other end of the threaded pull rod is fixedly connected to the first bone holding forceps, one end of the bone holding forceps locking rod is rotatably connected to the first bone holding forceps through a pin shaft, and the other end of the bone holding forceps locking rod passes through the outside of the tail of the second bone holding forceps, the bone holding forceps locking head and the limit block are both arranged on the bone holding forceps locking rod, and the bone holding forceps locking head is located on the outside of the second bone holding forceps, and the limit block is located between the first bone holding forceps and the second bone holding forceps.

[0014] In the above technical solution, anti-slip grooves are respectively provided on the inner sides of the first bone holding forceps and the second bone holding forceps.

[0015] In the above technical solution, the first bone holding forceps and the second bone holding forceps are respectively provided with spikes for hooking the transverse processes at both ends of the slipped vertebral body.

[0016] In the above technical solution, a hinge joint is provided at the tail of the first bone clamp, a bone clamp locking rod connecting head is provided at the tail of the second bone clamp, and the bone clamp locking rod connecting head has an oval-shaped through hole, one end of the bone clamp locking rod is rotatably connected to the hinge joint through a pin shaft, and the other end of the bone clamp locking rod passes through the outside of the oval-shaped through hole of the bone clamp locking rod connecting head.

[0017] The positive effect of the present invention is: after adopting the vertebral lifting and reduction system of the present invention, since the present invention includes a fixed frame mechanism for fixing on both sides of the operating table, a bone holding mechanism for clamping the transverse processes at both ends of the slipped vertebra, and a lifting and adjusting reduction mechanism for adjusting the bone holding mechanism, the two ends of the lifting and adjusting reduction mechanism are respectively assembled and connected with the fixed frame mechanism and the bone holding mechanism, and the height of the bone holding mechanism is adjusted by the lifting and adjusting reduction mechanism. After the bone holding mechanism clamps the transverse processes at both ends of the slipped vertebra, the bone holding mechanism is locked, and the bone holding mechanism and the clamped vertebra are synchronously lifted by the lifting and adjusting reduction mechanism to realize the lifting and reduction of the slipped vertebra. The specific operation process is: after the patient lies on the operating table, the position of the fixed frame mechanism fixed on both sides of the operating table is determined according to the patient's physiological structure parameters, and the fixed frame mechanism is pre-set The lifting and adjusting reset mechanism is fixed on both sides of the operating table, and the height of the fixed frame mechanism is further adjusted to expose the slipped vertebra. The bone holding mechanism is lowered and reaches below the transverse processes at both ends of the slipped vertebra by using the lifting and adjusting reset mechanism, and the bone holding mechanism is locked. The lifting and adjusting reset mechanism synchronously lifts the bone holding mechanism together with the clamped vertebra to achieve the lifting and reset of the slipped vertebra. The present invention replaces the technical solution of using pedicle screws to reset the slipped vertebra in the prior art. The advantages of the present invention are: first, even if the vertebra has osteoporosis, it will not affect the surgical operation, and the failure of the operation can be effectively avoided; second, after adopting the lifting and reset system of the present invention, there is no need for the assistance of multiple instruments, which reduces the difficulty of the operation and the cost of the operation. Third, the present invention is not only easy to operate, but also does not require the operator to continuously lift the dislocated vertebra, which reduces the surgical operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention;

[0019] Figure 2 yes Figure 1 A right side schematic diagram of

[0020] Figure 3 yes Figure 1 A magnified schematic diagram of part A;

[0021] Figure 4 yes Figure 1 A schematic diagram of the structure of the fixed frame mechanism;

[0022] Figure 5 yes Figure 1 Schematic diagram of the structure of the lifting and lowering adjustment and reduction mechanism and the bone holding mechanism;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the assembly of the retaining clamp and the tightening nut of the present invention;

[0024] Figure 7It is a three-dimensional schematic diagram of the use state of the present invention. DETAILED DESCRIPTION

[0025] The present invention is further described below with reference to the accompanying drawings and given embodiments, but is not limited thereto.

[0026] like Figure 1 , 2 As shown in Figures 3, 4, 5, 6 and 7, a vertebral lifting and reduction system includes a fixed frame mechanism 1 for fixing on both sides of an operating table, a bone holding mechanism 3 for clamping the transverse processes at both ends of a slipped vertebra, and a lifting and adjusting reduction mechanism 2 for adjusting the bone holding mechanism 3. The two ends of the lifting and adjusting reduction mechanism 2 are respectively assembled and connected with the fixed frame mechanism 1 and the bone holding mechanism 3, and the height of the bone holding mechanism 3 is adjusted by the lifting and adjusting reduction mechanism 2. After the bone holding mechanism 3 clamps the transverse processes at both ends of the slipped vertebra, the bone holding mechanism 3 is locked, and the bone holding mechanism 3 and the clamped vertebra are synchronously lifted by the lifting and adjusting reduction mechanism 2 to achieve the lifting and reduction of the slipped vertebra.

[0027] like Figure 1 , 4 As shown in Figures 7 and 8, in order to conveniently fix the present invention to the operating bed as a whole, the fixed frame mechanism 1 includes a fixed block 11, a connecting rod 12, a cross bar 13, a connecting rod locking handle 14 and a fixed block locking handle 15. The top of the fixed block 11 is provided with a fixed block locking handle 15, and the two ends of the cross bar 13 are respectively assembled and connected with one end of the corresponding connecting rod 12, and the fixed block 11 and the other end of the connecting rod 12 are locked as a whole through the connecting rod locking handle 14. When in use, the fixed blocks 11 are respectively clamped on the bed frames on both sides of the operating bed, and the fixed block and the bed frame are fastened together by the fixed block locking handle 15. Then, after adjusting the height of the connecting rod, the connecting rod locking handle 14 is tightened to fasten the connecting rod 12 and the fixed block 11 as a whole, so as to ensure the stability of the overall structure of the fixed frame mechanism 1 and provide a basis for subsequent vertebral lifting and reduction.

[0028] like Figure 3 , 4 As shown, in order to facilitate the adjustment of the angle of the fixed block and prevent the fixed block from rotating, the fixed frame mechanism 1 also includes an adjustment base 16 and a fixed block anti-rotation sleeve 17, the other end of the connecting rod 12 is inserted into the jack provided in the adjustment base 16, and the fixed block 11 is sleeved on the outer periphery of one end of the adjustment base 16, the adjustment base 16 is arranged in the inner cavity of the fixed block anti-rotation sleeve 17, and the fixed anti-rotation sleeve 17 is in contact with the fixed block 11. According to actual surgical needs, the fixed block 11 on the adjustment base 16 can be rotated in advance, and then the fixed anti-rotation sleeve 17 is in contact with the fixed block 11, so that the installation angle of the fixed block 11 can be freely adjusted;

[0029] The fixing block 11 is provided with a bed frame slot 111, and a first locking pin 112 is screwed into the bed frame slot 111 on the top thereof. The first locking pin 112 is hingedly connected to the fixing block locking handle 15. When the fixing block 11 is mounted on the bed frame, the fixing block locking handle 15 is rotated to make the end face of the first locking pin 112 abut against the bed frame, and the fixing block 11 and the bed frame are fixed together. After adjusting the installation angle of the fixing block 11, the fixing block locking handle 15 is tightened to make the end face of the first locking pin 112 abut against the bed frame, and finally the fixing block locking handle 15 is rotated;

[0030] A second locking pin 161 is provided on the outer end surface of the adjustment base 16 and is screwed into the socket. The connecting rod locking handle 14 is hingedly connected to the second locking pin 161. The connecting rod locking handle 14 is rotated to make the end surface of the second locking pin 161 abut against the connecting rod 12 in the socket of the adjustment base 16, thereby fastening the connecting rod 12 and the adjustment base 16 as a whole.

[0031] like Figure 3 As shown, in order to facilitate the fixing block 11 to be clamped on the bed frame and held tightly to prevent it from falling off, a guide flange 113 is provided at the bottom of the fixing block 11 and close to the bed frame slot 111, and the fixing block 11 is provided with a stop tooth 114, and the fixed stop sleeve 17 is provided with a stop tooth groove 171, and the stop tooth 114 is engaged with the stop tooth groove 171. In order to further ensure that the fixing block 11 does not rotate, it is limited and locked, and the stop tooth groove 171 of the fixed stop sleeve 17 cooperates with the stop tooth 114 of the fixing block 11.

[0032] like Figure 1 , 2 As shown in Figures 7, in order to facilitate the rapid assembly of the cross bar and the connecting rod, the fixed frame mechanism 1 also includes a connecting head 18, one end of the connecting rod 12 is provided with a connecting sleeve 121 which is integral with or fixedly connected thereto, and the two ends of the cross bar 13 are respectively detachably connected to the corresponding connecting heads 18, the connecting sleeve 121 is sleeved on the outer periphery of the connecting head 15, and a tightening sleeve 19 which is threadedly connected thereto is provided on the connecting head 18 and located on the outer side of the connecting sleeve 121. In order to facilitate postoperative storage and disinfection, after the operation is completed, the fixed block 11 is removed from the bed frame, the tightening sleeve 19 is loosened, and the connecting sleeve 121 is rotated relative to the connecting head 18. In this way, the connecting rods 12 at both ends of the cross bar 13 can be rotated and stored, which not only reduces the occupied space, but also facilitates storage and subsequent disinfection.

[0033] like Figure 1 , 5As shown in Figures 7 and 8, in order to facilitate the adjustment of the height of the bone holding mechanism, the fixed frame mechanism 1 includes a cross bar 13, and the lifting and lowering adjustment and resetting mechanism 2 includes a slider 21, a threaded pull rod 22, a pull rod sleeve 23, a stop ring 24, a tightening nut 25 and a lifting handle 26. A groove is provided on the inner wall of the pull rod sleeve 23 and along its circumferential direction. The tightening nut 25 is fixedly connected with the stop ring 24. The stop ring 24 is sleeved on one end of the threaded pull rod 22. The pull rod sleeve 23 is arranged on the outer periphery of the threaded pull rod 22 and the stop ring 24, and the lower edge of the stop ring 24 is stuck in the groove of the pull rod sleeve 23. The outer wall of the pull rod sleeve 23 is fixedly connected with the slider 21, and the slider 21 is sleeved on the cross bar 13 and slidably cooperates with it. A lifting handle 26 is provided at the end of one end of the threaded pull rod 22. The anti-retraction clamp 24 is fixedly connected or integrated with the tightening nut 25. A protrusion is provided at the lower edge of the anti-retraction clamp 24, which is integrated or fixedly connected with the anti-retraction clamp 24. The protrusion is stuck in the slot of the pull rod sleeve 23, and the protrusion can rotate relatively in the slot. When in use, the slider 21 slides along the cross bar 13 to adjust the overall position of the bone holding mechanism 3 so that it is located directly above the slipped vertebral body. The lifting handle 26 is rotated, the pull rod sleeve 23 is fixed, and the threaded pull rod 22 rotates relative to the pull rod sleeve 23 and can move up and down, thereby driving the overall movement of the bone holding mechanism 3.

[0034] like Figure 1 , 7 As shown, in order to quickly hook the transverse processes at both ends of the vertebral body, the lifting and adjusting resetting mechanism 2 includes a threaded pull rod 22, and the bone holding mechanism 3 includes a first bone holding forceps 31, a second bone holding forceps 32, a bone holding forceps locking rod 33, a bone holding forceps locking head 34 and a limit stop block 35. The first bone holding forceps 31 and the second bone holding forceps 32 are hingedly connected, and the other end of the threaded pull rod 22 is fixedly connected to the first bone holding forceps 31. One end of the bone holding forceps locking rod 33 is rotatably connected to the first bone holding forceps 31 through a pin shaft, and the other end of the bone holding forceps locking rod 33 passes through the tail of the second bone holding forceps 32. The bone holding forceps locking head 34 and the limit stop block 35 are both arranged on the bone holding forceps. The locking rod 33 is used for locking the first and second bone clamps 31 and 32, and the locking head 34 of the bone clamp is located on the outside of the second bone clamp 32. The limit stopper 35 is located between the first and second bone clamps 31 and 32. When in use, the threaded pull rod 22 is rotated to make the first and second bone clamps 31 and 32 reach below the transverse processes at both ends of the slipped vertebral body, and then the threaded pull rod 22 is lifted until the first and second bone clamps 31 and 32 are against the transverse processes, ensuring that the bone clamp locking head 34 and the limit stopper 35 are against both sides of the second bone clamp 32, completing the locking and positioning of the first and second bone clamps 31 and 32, and then further lifting the threaded pull rod 22 to achieve the lifting and reduction of the slipped vertebral body.

[0035] like Figure 7As shown, in order to increase the friction force of the bone clamp on both sides of the vertebral body and prevent slipping, the inner sides of the first bone clamp 31 and the second bone clamp 32 are respectively provided with anti-slip grooves 36.

[0036] like Figure 7 As shown, in order to facilitate puncturing of the patient's human tissue so that the spikes can hook the transverse processes, the first bone holding forceps 31 and the second bone holding forceps 32 are respectively provided with spikes 37 for hooking the transverse processes at both ends of the slipped vertebral body.

[0037] like Figure 1 , 7 As shown, in order to conveniently ensure the opening and closing angles of the bone clamp and lock it in place, a hinge joint 311 is provided at the tail of the first bone clamp 31, and a bone clamp locking rod connector 321 is provided at the tail of the second bone clamp 32. The bone clamp locking rod connector 321 has an oval through hole, and one end of the bone clamp locking rod 33 is rotatably connected to the hinge joint 311 through a pin, and the other end of the bone clamp locking rod 33 passes through the outside of the oval through hole of the bone clamp locking rod connector 321.

[0038] like Figure 7 As shown, the working principle of the present invention is:

[0039] Step 1: Fix the fixed frame mechanism 1 on both sides of the bed;

[0040] When in use, after adjusting the installation angle of the fixing block 11 according to actual needs, the fixing block 11 is clamped on the bed frames on both sides of the operating bed, and the fixing block locking handle 15 is tightened so that the end surface of the first locking pin 112 abuts against the bed frame, and finally the fixing block locking handle 15 is rotated to tighten the fixing block and the bed frame as a whole by using the fixing block locking handle 15.

[0041] After adjusting the height of the connecting rod 12, rotate the connecting rod locking handle 14 to make the end face of the second locking pin 161 abut against the connecting rod 12 in the socket of the adjustment base 16, and fasten the connecting rod 12 and the adjustment base 16 as a whole. The anti-rotation tooth groove 171 of the fixed anti-rotation sleeve 17 cooperates with the anti-rotation tooth 114 of the fixed block 11 to further ensure that the fixed block 11 will not rotate, and limit it to ensure the stability of the overall structure of the fixed frame mechanism 1, which is convenient for subsequent vertebral lifting and reduction.

[0042] Step 2: vertebral lifting and reduction;

[0043] The slider 21 slides along the crossbar 13 to adjust the overall position of the bone holding mechanism 3 so that it is located directly above the slipped vertebral body 4. The lifting handle 26 is rotated, the rod sleeve 23 is fixed, and the threaded rod 22 rotates relative to the rod sleeve 23 and can move up and down, thereby driving the overall movement of the bone holding mechanism 3.

[0044] Next, rotate the threaded pull rod 22 so that the first bone clamp 31 and the second bone clamp 32 reach below the transverse processes at both ends of the slipped vertebral body 4, and then lift the threaded pull rod 22 until the cone spikes 37 on the first bone clamp 31 and the second bone clamp 32 abut against the transverse processes of the vertebral body 4, and then ensure that the bone clamp locking head 34 and the limit block 35 abut against the two sides of the second bone clamp 32 to complete the locking and positioning of the first bone clamp 31 and the second bone clamp 32, and then further lift the threaded pull rod 22 to achieve the lifting and reduction of the slipped vertebral body.

[0045] The present invention replaces the technical solution of using pedicle screws to reposition the slipped vertebra in the prior art. The present invention has the following advantages: first, even if the vertebra has osteoporosis, it will not affect the surgical operation, and the failure of the operation can be effectively avoided; second, after adopting the lifting and repositioning system of the present invention, there is no need for the assistance of multiple instruments, which reduces the difficulty of the operation and also reduces the cost of the operation; third, the present invention is not only easy to operate, but also does not require the operator to continuously lift the dislocated vertebra, which reduces the surgical operation time.

[0046] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vertebral lifting and reduction system, characterized in that: The invention comprises a fixed frame mechanism (1) for fixing on both sides of an operating table, a bone holding mechanism (3) for clamping the transverse processes at both ends of a slipped vertebral body, and a lifting and adjusting reset mechanism (2) for adjusting the bone holding mechanism (3). The two ends of the lifting and adjusting reset mechanism (2) are respectively assembled and connected with the fixed frame mechanism (1) and the bone holding mechanism (3), and the height of the bone holding mechanism (3) is adjusted by the lifting and adjusting reset mechanism (2). After the bone holding mechanism (3) clamps the transverse processes at both ends of the slipped vertebral body, the bone holding mechanism (3) is locked, and the lifting and adjusting reset mechanism (2) synchronously lifts the bone holding mechanism (3) together with the clamped vertebral body, thereby realizing the lifting and reset of the slipped vertebral body. The fixed frame mechanism (1) comprises a fixed block (11), a connecting rod (12), a cross bar (13), a connecting rod locking handle (14) and a fixed block locking handle (15), wherein the top of the fixed block (11) is provided with a fixed block locking handle (15), the two ends of the cross bar (13) are respectively assembled and connected to one end of the corresponding connecting rod (12), and the other end of the fixed block (11) and the connecting rod (12) are locked into one piece via the connecting rod locking handle (14). The fixed frame mechanism (1) further comprises an adjustment base (16) and a fixed block anti-rotation sleeve (17), the other end of the connecting rod (12) is inserted into a socket provided in the adjustment base (16), and the fixed block (11) is sleeved on the outer periphery of one end of the adjustment base (16), the adjustment base (16) is arranged in the inner cavity of the fixed block anti-rotation sleeve (17), and the fixed anti-rotation sleeve (17) is in contact with the fixed block (11); The fixing block (11) is provided with a bed frame slot (111), and a first locking pin (112) is provided on the top of the fixing block and is screwed into the bed frame slot (111). The first locking pin (112) is hingedly connected to a fixing block locking handle (15). When the fixing block (11) is mounted on the bed frame, the fixing block locking handle (15) is rotated so that an end surface of the first locking pin (112) abuts against the bed frame, thereby fastening the fixing block (11) and the bed frame together. A second locking pin (161) is provided on the outer end surface of the adjustment base (16) and is screwed into the insertion hole. The connecting rod locking handle (14) is hingedly connected to the second locking pin (161). The connecting rod locking handle (14) is rotated to make the end surface of the second locking pin (161) abut against the connecting rod (12) in the insertion hole of the adjustment base (16), so that the connecting rod (12) and the adjustment base (16) are fixed as a whole. The lifting adjustment and resetting mechanism (2) comprises a threaded pull rod (22); the bone holding mechanism (3) comprises a first bone holding forceps (31), a second bone holding forceps (32), a bone holding forceps locking rod (33), a bone holding forceps locking head (34) and a limit stopper (35); the first bone holding forceps (31) and the second bone holding forceps (32) are hingedly connected; the other end of the threaded pull rod (22) is fixedly connected to the first bone holding forceps (31); one end of the bone holding forceps locking rod (33) is rotatably connected to the first bone holding forceps (31) via a pin; the other end of the bone holding forceps locking rod (33) passes through the outside of the tail of the second bone holding forceps (32); the bone holding forceps locking head (34) and the limit stopper (35) are both arranged on the bone holding forceps locking rod (33); the bone holding forceps locking head (34) is located on the outside of the second bone holding forceps (32); and the limit stopper (35) is located between the first bone holding forceps (31) and the second bone holding forceps (32).

2. The vertebral lifting and reduction system according to claim 1, characterized in that: A guide flange (113) is provided at the bottom of the fixing block (11) and close to the bed frame slot (111); the fixing block (11) is provided with a stop tooth (114); the fixing stop sleeve (17) is provided with a stop tooth groove (171); the stop tooth (114) is meshed with the stop tooth groove (171).

3. The vertebral lifting and reduction system according to claim 1, characterized in that: The fixed frame mechanism (1) further comprises a connecting head (18), one end of the connecting rod (12) is provided with a connecting sleeve (121), both ends of the cross bar (13) are respectively detachably connected to the corresponding connecting head (18), the connecting sleeve (121) is sleeved on the outer periphery of the connecting head (18), and a tightening sleeve (19) is provided on the connecting head (18) and located on the outer side of the connecting sleeve (121) and is threadedly connected to the connecting head (18).

4. The vertebral lifting and reduction system according to claim 1, characterized in that: The fixed frame mechanism (1) comprises a cross bar (13), and the lifting adjustment and resetting mechanism (2) comprises a slider (21), a threaded pull rod (22), a pull rod sleeve (23), a retaining ring (24), a tightening nut (25) and a lifting handle (26). A retaining groove is provided on the inner wall of the pull rod sleeve (23) and along its circumferential direction. The tightening nut (25) is fixedly connected to the retaining ring (24), and the retaining ring (24) is sleeved on the inner wall of the pull rod sleeve (23). At one end of the threaded tie rod (22), a tie rod sleeve (23) is arranged on the outer periphery of the threaded tie rod (22) and the anti-retraction clamp (24), and the lower edge of the anti-retraction clamp (24) is clamped in the clamping groove of the tie rod sleeve (23), the outer wall of the tie rod sleeve (23) is fixedly connected to the slider (21), and the slider (21) is sleeved on the cross bar (13) and slidably matched therewith, and a lifting handle (26) is provided at the end of one end of the threaded tie rod (22).

5. The vertebral lifting and reduction system according to claim 1, characterized in that: Anti-slip grooves (36) are respectively provided on the inner sides of the first bone holding forceps (31) and the second bone holding forceps (32).

6. The vertebral lifting and reduction system according to claim 1, characterized in that: The first bone holding forceps (31) and the second bone holding forceps (32) are respectively provided with cone spikes (37) for hooking the transverse processes at both ends of the slipped vertebral body.

7. The vertebral lifting and reduction system according to claim 1, characterized in that: The tail of the first bone clamp (31) is provided with a hinge joint (311), the tail of the second bone clamp (32) is provided with a bone clamp locking rod connecting head (321), and the bone clamp locking rod connecting head (321) has a waist-shaped through hole, one end of the bone clamp locking rod (33) is rotatably connected to the hinge joint (311) via a pin, and the other end of the bone clamp locking rod (33) passes through the waist-shaped through hole of the bone clamp locking rod connecting head (321).

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