CN111839709B - Quantifiable opening and lifting device for lumbar vertebra slippage reduction - Google Patents

Abstract

The invention discloses a quantifiable opening and lifting device for lumbar spondylolisthesis reduction, which comprises a vertical upper supporting rod, wherein the left side of the top end of the vertical upper supporting rod is integrally connected with a horizontal graduated scale, the bottom of the vertical upper supporting rod is rotationally connected with a sleeve A through a universal joint coupling, the top of the graduated scale is provided with saw teeth along the length direction of the graduated scale, the graduated scale is horizontally and slidably connected with a vertebral body deviation correcting device, and the vertebral body deviation correcting device is used for opening and lifting a pathological change slipping vertebral body part and resetting the pathological change slipping vertebral body part. According to the structure of the invention, the traditional mode of pulling the reset vertebral body by bare hands is changed, the distraction lifting device is adopted, the slipping lesions among the vertebral bodies can be effectively improved after the vertebral bodies are distracted and lifted during operation, the comfort level of patients is high, meanwhile, the amplitude of the distraction and lifting of the vertebral bodies is controlled through a quantifiable operation mode, the vertebral body correction amount is not easy to be too small or excessive, the accuracy of the reduction of the affected vertebral bodies is greatly improved, and the operability and the stability of the whole device are stronger.

Description

Quantifiable opening and lifting device for lumbar vertebra slippage reduction

Technical Field

The invention relates to the field of orthopedic medical instruments, in particular to a quantifiable opening and lifting device for lumbar vertebra slippage reduction.

Background

Lumbar spondylosis is one of common lumbar degenerative diseases, often causes symptoms such as lumbago and skelalgia, affects the life quality of patients, and requires operation for patients with ineffective conservative treatment.

Most scholars consider that the anatomical reduction of lumbar spondylolisthesis in operation can reconstruct the normal sequence of the spine, improve the unbalance of the sagittal plane of the spine, increase the stability between vertebral bodies, facilitate the fusion of surgical segments, avoid complications such as false joint formation, internal fixation failure and the like, effectively prevent the further aggravation of the lumbar spondylolisthesis, have definite biomechanical advantages, and the reduction is also favorable for relieving spinal stenosis secondary to the lumbar spondylolisthesis, improving the surgical curative effect and increasing the surgical satisfaction of patients.

However, the lumbar vertebra slipping often has a lesion intervertebral space height loss, so that the operation needs to restore the height of the lesion intervertebral space as much as possible when the sagittal plane reduction of the slipping vertebral body is carried out, otherwise, the lifting of the vertebral body is easy to be blocked, the lesions among the vertebral bodies are further aggravated, great pain is brought to a patient, meanwhile, the current lifting and stretching vertebral body is mainly operated by bare hands and a simple appliance, the mode of lifting and stretching the vertebral body by bare hands is not easy to control the amplitude, the correction amount of the vertebral body is easy to be too small or excessive, the operation precision is low, the stability is low, and the operation of stretching and lifting the vertebral body is carried out in the operation, so that the height of the intervertebral space is successfully restored, and the slipping vertebral body is reset, so that the hot spots and difficulties of the clinical discussion at present are achieved.

Disclosure of Invention

The invention aims to provide a quantifiable stretching and lifting device for lumbar vertebra slippage reduction, which overcomes the defects of the prior art, solves the problems that the lumbar vertebra slippage of a patient often combines with the height loss of a pathological change intervertebral space, the lifting and the blocking of vertebral bodies during operation are easy to cause, the pathological change among the vertebral bodies is further aggravated, and the huge pain is brought to the patient, and simultaneously solves the problems that the amplitude of stretching the vertebral bodies is difficult to control, the correction amount of the vertebral bodies is over small or excessive, the operation precision is low and the stability is low in the conventional manual stretching and lifting.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The utility model provides a quantifiable struts and draws device that carries for lumbar vertebra slippage resets, includes vertical last branch, and its top left side integral type is connected with horizontally graduated flask and bottom is connected with sleeve A through the universal joint shaft coupling rotation, the graduated flask top is equipped with sawtooth and level sliding connection has centrum deviation correcting device on the graduated flask along its length direction, carries out struts, carries the drawing to pathological change centrum position through centrum deviation correcting device to the pathological change centrum position resets.

The cone deviation correcting device comprises a spiral supporting device and a screw lifting device, wherein the spiral supporting device comprises an inverted-L-shaped bracket, a knob, a gear, a pin shaft M and a fixer, the inverted-L-shaped bracket is formed by integrally connecting a vertical rod and a transverse base, the transverse base is a square box body with left and right openings, and the graduated scale penetrates through the box body from right to left;

The rotary rod penetrates through the left side of the box body from front to back, the rear end head is locked through a screw, a gear is sleeved on the rotary rod positioned in the box body, and the gear is meshed with the saw teeth;

the fixing device is vertically and rotatably connected to the two sides of the front side of the right upper part of the box body through a pin shaft M;

The screw lifting device comprises a sleeve B, a connecting shaft and a lifting rod, wherein the bottom of the vertical rod is rotationally connected to the top of the sleeve B through a universal joint coupling, two vertical strip-shaped sliding grooves are oppositely formed in the front side wall and the rear side wall of the upper half of the sleeve B in a penetrating mode, the connecting shaft is sleeved in the sleeve B, a through hole is formed in the front end and the rear end of the connecting shaft in a penetrating mode, and the lifting rod penetrates through the strip-shaped sliding grooves and penetrates through the through hole to limit the connecting shaft in the sleeve B.

Further, the fixer is formed by integrally connecting an arc plate and two earplates which are symmetrical front and back, the pin shaft M penetrates through the two earplates and the box body, the fixer is limited at the right upper part of the box body, namely, the arc plate is vertically and rotatably connected to the front and back sides of the right upper part of the box body through the pin shaft M, and the right end part of the arc plate is just matched with a sawtooth groove between sawteeth.

Further, a torsion spring is sleeved on the pin shaft M positioned in the box body, the right end of the arc plate is clamped into the sawtooth groove under the action of the elasticity of the torsion spring in a natural state, and when the movable cone deviation correcting device is required to be adjusted, the left end of the arc plate is pressed downwards, so that the right end of the arc plate is separated from the sawtooth groove.

Further, the knob is vertically and rotatably connected with a 'concave' handle through a pin shaft N, namely the pin shaft N sequentially penetrates through the left side of the handle, the knob and the right side of the handle from left to right.

Further, scale marks are arranged on the outer side wall of the notch of the strip-shaped chute.

Further, be equipped with the screw thread on the lateral wall of connecting axle lower tip, just threaded connection is in the screw seat on the universal pedicle of vertebral arch screw, and connecting axle bottom center is equipped with spacing arch downwards, spacing arch matches the draw-in groove at screw rod top on the universal pedicle of vertebral arch screw.

Further, two groups of circular bulges are symmetrically arranged on the inner side wall of the bottom of the sleeve A from top to bottom, the central connecting line of each group of circular bulges is intersected with the central line of the sleeve A, and when the sleeve A is sleeved on the universal pedicle screw driven into the vertebral body, the circular bulges are just clamped in the hole slots matched with the universal pedicle screw.

Further, the pathological change centrum position is fourth centrum, fifth centrum and between the two, all inlay a universal pedicle of vertebral arch screw on fourth centrum, the fifth centrum and two universal pedicle of vertebral arch screws are located the homonymy of lumbar vertebra post, same vertical row.

Compared with the prior art, the invention has the beneficial effects that:

1. According to the quantifiable stretching and lifting device for lumbar vertebra slippage reduction, the left side of the top end of the upper supporting rod is integrally connected with the horizontal graduated scale, so that the amplitude of stretching of the vertebral bodies by the vertebral body deviation correcting device can be accurately controlled, collision between pathological change vertebral bodies is avoided, and the accuracy of reduction is improved.

2. The quantifiable stretching and lifting device for lumbar vertebra slipping reduction provided by the invention has the advantages that the rotary rod is integrally connected to the rear end surface of the knob, the rotary rod penetrates through the left side of the box body from front to back, the rear end head is locked through the screw, the rotary rod positioned in the box body is sleeved with the gear, the gear is meshed with the saw teeth, the vertebral body deviation correcting device is finely adjusted by screwing the knob, the amplitude of stretching vertebral bodies is conveniently controlled, the collision between pathological change vertebral bodies is avoided, and the accuracy of reduction is further improved.

3. The quantifiable strutting and lifting device for lumbar vertebra slippage reduction provided by the invention has the advantages that the bottom of the vertical rod is rotationally connected to the top of the sleeve B through the universal joint coupling, so that the sleeve B is better butted with the screw seat of the universal pedicle screw, and the device is more flexible.

4. The torsion spring is sleeved on the pin shaft M positioned in the box body, the right end of the arc plate is clamped into the sawtooth groove under the action of the elasticity of the torsion spring in a natural state, and when the device is used, the left end of the arc plate is pressed downwards, so that the right end of the arc plate is separated from the sawtooth groove, the purpose of timely adjusting the position of the correction device for moving the vertebral body is realized, and the requirements of expanding and lifting the vertebral body are met.

5. The quantifiable opening lifting device for lumbar spondylolisthesis reduction provided by the invention has the advantages that the knob is vertically and rotatably connected with the concave-shaped handle through the pin shaft N, namely the pin shaft N sequentially penetrates through the left side of the handle, the knob and the right side of the handle from left to right, the estimated distance of a pathological change vertebral body before operation can be greatly adjusted through the concave-shaped handle, and the speed and the efficiency are high.

6. The quantifiable opening lifting device for lumbar vertebra slippage reduction provided by the invention has the advantages that the scale marks are arranged on the outer side wall of the notch of the strip-shaped chute, so that the amplitude of the lifting vertebral body on the lifting rod can be conveniently controlled, and the accuracy of reduction is improved.

7. According to the quantifiable opening lifting device for lumbar vertebra slippage reduction, provided by the invention, the outer side wall of the lower end part of the connecting shaft is provided with the screw thread, the center of the bottom of the connecting shaft is downwards provided with the limiting protrusion, and when the lower end part of the connecting shaft is in threaded connection with the screw seat on the universal pedicle screw, the limiting protrusion is just embedded into the clamping groove at the top of the screw rod on the universal pedicle screw, so that the screw seat is not rotated any more, and the operation stability is improved.

8. The quantifiable opening and lifting device for lumbar spondylolisthesis reduction provided by the invention has the advantages that the inner side wall of the bottom of the sleeve A is provided with two groups of circular protrusions which are bilaterally symmetrical from top to bottom, the central connecting line of each group of circular protrusions is intersected with the central line of the sleeve A, when the sleeve A is sleeved on a universal pedicle screw driven into a vertebral body, the circular protrusions are just clamped in a hole slot matched with the universal pedicle screw, namely, the positions of the sleeve A and an upper supporting rod are limited, and the opening and lifting operations of a subsequent vertebral body deviation correcting device are facilitated.

9. The quantifiable expanding and lifting device for lumbar spondylolisthesis reduction provided by the invention has the advantages that the universal pedicle screws are embedded in the fourth vertebral body and the fifth vertebral body, and the two universal pedicle screws are positioned on the same side and the same vertical row of the lumbar vertebra column, so that the device is convenient to install and the subsequent vertebral body expanding and lifting operation is convenient.

10. The quantifiable stretching and lifting device for lumbar vertebra slipping reduction changes the traditional method of stretching and restoring the vertebral bodies by bare hands, adopts the stretching and lifting device, simultaneously completes stretching and lifting operations of the vertebral bodies during operation, simultaneously lifts the vertebral bodies without obstruction due to stretching, avoids aggravating pathological changes among the vertebral bodies, greatly reduces pain feeling, has high comfort level for patients, simultaneously controls the stretching and lifting amplitude of the vertebral bodies through the quantifiable operation mode, is not easy to cause too small or excessive correction amount of the vertebral bodies, greatly improves the accuracy of the pathological change slipping vertebral body reduction, has stronger operability and stability, further reduces the operation time of doctors, and has extremely high application and popularization values.

Drawings

Fig. 1 is a front view of the overall structure of the present invention.

Fig. 2 is a side longitudinal cross-sectional view of the overall structure of the present invention.

Fig. 3 is a perspective view of the screw spreader of the present invention.

Fig. 4 is a structural cross-sectional view of the sleeve B of the present invention.

Fig. 5 is a structural view of the universal joint coupling of the present invention.

Fig. 6 is a block diagram of a diseased vertebral body site of a human body in accordance with the present invention.

Fig. 7 is a schematic view of the structure of a prior art universal pedicle screw according to the invention.

Fig. 8 is a view of a clinical embodiment of the present invention, wherein fig. 8 is an operation table on which a human body is lying.

Detailed Description

The present application is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the application and not limiting of its scope, and various modifications of the application, which are equivalent to those skilled in the art upon reading the application, will fall within the scope of the application as defined in the appended claims.

The quantized spreading and lifting device for lumbar spondylolisthesis reduction is characterized by comprising a vertical upper supporting rod 1, a horizontal graduated scale 2 is integrally connected to the left side of the top end of the vertical upper supporting rod 1, a sleeve A4 is rotatably connected to the bottom of the vertical upper supporting rod through a universal joint coupler 3, a saw tooth 21 is arranged at the top of the graduated scale 2 along the length direction of the graduated scale 2, a cone deviation correcting device 5 is horizontally and slidably connected to the graduated scale 2, a pathological change cone part 6 is spread and lifted through the cone deviation correcting device 5, and the pathological change cone part 6 is reset, wherein the cone deviation correcting device 5 comprises a spiral spreading device 51 and a screw lifting device 52, the spiral spreading device 51 comprises an inverted L-shaped bracket 511, a knob 512, a gear 513, a pin shaft M514 and a fixer 515, the inverted L-shaped bracket 511 is integrally connected by a vertical rod 501 and a transverse base 502, the graduated scale 2 passes through the box body from right to left, a rotating rod 516 is integrally connected to the rear end face of the knob 512, the rotating rod 516 is arranged at the rear end face of the knob 516 and penetrates through the gear 513 and is positioned on the left side of the gear wheel body 508 and is meshed with the saw tooth sleeve 515;

The screw lifting device 52 comprises a sleeve B521, a connecting shaft 522 and a lifting rod 523, the bottom of the vertical rod 501 is rotationally connected to the top of the sleeve B521 through a universal joint coupler 3, two vertical strip-shaped sliding grooves 524 are oppositely penetrated through the front side wall and the rear side wall of the upper half of the sleeve B521, a connecting shaft 522 is sleeved in the sleeve B521, a through hole 525 penetrates through the front side and the rear side of the upper end of the connecting shaft 522, the lifting rod 523 penetrates through the strip-shaped sliding grooves 524 and penetrates through the through hole 525 to limit the connecting shaft 522 in the sleeve B521, the fixing device 515 is formed by integrally connecting an arc plate 503 and a front-rear symmetrical two-lug plate 504, the pin shaft M514 penetrates through the two-lug plate 504 and the box body, the fixing device 515 is limited to the right upper part of the box body, namely the arc plate 503 is vertically rotationally connected to the front side and the rear side of the right upper part of the box body through the pin shaft M514, and the right end of the arc plate 503 is just matched with a sawtooth groove between sawteeth 21.

The torsion spring 505 is sleeved on the pin shaft M514 inside the box body, under the natural state, the right end of the arc plate 503 is clamped into the sawtooth groove under the elastic action of the torsion spring 505, and when the cone deviation correcting device 5 needs to be adjusted and moved, the left end of the arc plate 503 is pressed downwards, so that the right end of the arc plate 503 is separated from the sawtooth groove.

The knob 512 is vertically and rotatably connected with a 'concave-shaped' handle 518 through a pin shaft N517, namely the pin shaft N517 sequentially penetrates through the left side of the handle 518, the knob 512 and the right side of the handle 518 from left to right, a scale mark 526 is arranged on the outer side wall of a notch of the strip-shaped chute 524, a screw thread is arranged on the outer side wall of the lower end part of the connecting shaft 522 and is just connected with a screw seat 506 on a universal pedicle screw in a threaded manner, a limiting protrusion 527 is downwards arranged at the center of the bottom of the connecting shaft 522, and the limiting protrusion 527 is matched with a clamping groove 71 at the top of a screw on the universal pedicle screw 7.

The inner side wall of the bottom of the sleeve A4 is provided with two groups of circular bulges 41 which are bilaterally symmetrical from top to bottom, the central connecting line of each group of circular bulges 41 is intersected with the central line of the sleeve A4, when the sleeve A4 is sleeved on the universal pedicle screw 7 driven in on the vertebral body, the circular bulges 41 are just clamped in the hole grooves 72 matched with the universal pedicle screw 7, the pathological change vertebral body part 6 is a fourth vertebral body 61, a fifth vertebral body 62 and between the fourth vertebral body 61 and the fifth vertebral body 62, the universal pedicle screw 7 is embedded on each of the fourth vertebral body 61 and the fifth vertebral body 62, and the two universal pedicle screws 7 are positioned on the same side and the same vertical column of the lumbar vertebra.

The working principle of the invention is as follows:

1. before operation, the distance that the pathological change intervertebral space needs to be opened and the degree that the slipped vertebral body needs to be lifted are determined in advance on the imaging (X-ray or CT);

2. After anesthesia, disinfection and towel spreading, taking the median incision behind the fourth and fifth vertebral bodies 61, 62 of the lumbar vertebra, sequentially cutting skin and subcutaneous tissues, cutting lumbar fascia along two sides of the spinous process, pushing the sacrospinous muscles from bottom to top, and exposing the facet joints on two sides of the fourth and fifth vertebral bodies 61, 62;

3. The proper pedicle screws 7 are respectively placed at the pedicles at the two sides of the fourth vertebral body 61 and the fifth vertebral body 62, vertebral laminas at the two sides of the fourth vertebral body 61 are cut off, the proliferated articular processes and ligaments are cut off, the gap posterior longitudinal ligament between the fourth vertebral body 61 and the fifth vertebral body 62 is cut off, the narrow intervertebral space is detected, and the intervertebral disc is gradually taken out;

4. Estimating the distance between the joints of the fourth cone 61 and the fifth cone 62 according to the images, pressing the fixing device 515, opening the cone deviation correcting device 5 to the estimated distance by the adjusting knob 512, loosening the fixing device 515, and fixing the position of the cone deviation correcting device 5;

5. when the screw driver is used for assembling the connecting shaft 522 and the pedicle screw 7, and the lower end part of the connecting shaft 522 is in threaded connection with the screw seat 506 on the universal pedicle screw 7, the limiting boss 527 is just embedded into the clamping groove 71 at the top of the screw rod on the universal pedicle screw 7, so that the screw seat 506 is not rotated any more, and the operation stability is improved;

6. According to the actual position of the fourth cone 61 joint, the universal joint coupler 3 is adjusted to enable the connected sleeve B521 end to be accurately aligned with the fourth cone 61 joint, the sleeve B521 is sleeved on the connecting shaft 522, then the sleeve B521 is rotated, the two ends of the through hole 525 are respectively aligned with the strip-shaped sliding grooves 524, and the inner hole axis of the through hole 525 is approximately parallel to the lumbar connecting line;

7. according to the actual position of the fifth cone 62 joint, the universal joint coupler 3 is adjusted to enable the connected sleeve A4 end to be accurately aligned with the fifth cone 62 joint, and the circular protrusion 41 in the sleeve A4 is assembled with the hole groove 71, so that the circular protrusion 41 is just clamped in the hole groove 71;

8. The lifting rod 523 is installed in the through hole 525 of the connecting shaft 522, then the fixer 515 of the screw adjusting device is opened, the adjusting knob 512 is carried out according to the preset opening distance, the intervertebral space between the fourth vertebral body 61 and the fifth vertebral body 62 is opened, and then the fixer 515 is closed;

9. the lifting rod 523 is pulled up to lift the fourth cone 61 to a preset position, the fourth cone 61 is reset, and the stretching and lifting effects are verified through perspective until satisfaction.

10. The connecting rod at the other side is installed, the pedicle screw and the nut are screwed, a proper amount of autologous bone and a fusion device with proper size are implanted in the intervertebral space between the fourth vertebral body 61 and the fifth vertebral body 62, after the device is dismantled, the connecting rod is installed at the same side, the pedicle screw and the nut are screwed, and the position is satisfied by perspective again.

The subsequent operation is as usual, the incision is placed for drainage and is sutured layer by layer, and finally the restoration of the height of the intervertebral space and the reduction of the slipped vertebral body are realized.

When the cone deviation correcting device 5 is installed, because the lifting rod 523 and the connecting shaft 522 are in clearance fit, the installation accuracy requirement is not too high, and the test shows that the inner hole axis of the lifting rod 523 is only required to be approximately parallel to the lumbar connecting line, and then the lifting rod 523 is installed in the through hole 525.

Wherein, the universal joint coupler 3 adopts a single-joint-universal joint coupler with the model of CPW-5.

In the embodiment 2, the upper end of the universal joint coupler 3 connected with the sleeve B521 is fixed, so that the sleeve B521 at the lower end can not rotate, and only the sleeve B521 at the lower end can vertically rotate back and forth, so that the degree of freedom is reduced, the assembly of the sleeve A4 and the universal pedicle screw 7 is prevented from being interfered, the specifications of the sleeve A4 and the sleeve B521 are the same, and the whole system is more harmonious.

Claims (6)

1. The quantifiable stretching and lifting device for lumbar vertebra slipping reduction is characterized by comprising a vertical upper supporting rod (1), wherein the top end left side of the vertical upper supporting rod is integrally connected with a horizontal graduated scale (2), the bottom of the vertical upper supporting rod is rotatably connected with a sleeve A (4) through a universal joint coupling (3), the top of the graduated scale (2) is provided with sawteeth (21) along the length direction of the graduated scale, the graduated scale (2) is horizontally and slidably connected with a vertebral body deviation correcting device (5), a pathological change vertebral body part (6) is stretched and lifted through the vertebral body deviation correcting device (5), and the pathological change vertebral body part (6) is reset, the vertebral body deviation correcting device (5) comprises a spiral stretching device (51) and a screw lifting device (52), the spiral stretching device (51) comprises an inverted L-shaped bracket (511), a knob (512), a gear (513), a pin shaft M (514) and a fixer (515), the inverted L-shaped bracket (511) is formed by integrally connecting a vertical rod (501) and a horizontal base (502), the horizontal base (502) is a box body with a left opening and a right box body, and the graduated scale (2) passes through a left box;

a rotary rod (516) is integrally connected to the rear end face of the knob (512), the rotary rod (516) penetrates through the left side of the box body from front to back, the rear end is locked through a screw (508), a gear (513) is sleeved on the rotary rod (516) positioned in the box body, and the gear (513) is meshed with the saw teeth (21);

The fixing device (515) is vertically and rotatably connected to the two sides of the front side of the right upper part of the box body through a pin shaft M (514);

The screw lifting device (52) comprises a sleeve B (521), a connecting shaft (522) and a lifting rod (523), the bottom of the vertical rod (501) is rotationally connected to the top of the sleeve B (521) through a universal joint coupler (3), two vertical strip-shaped sliding grooves (524) are oppositely penetrated through the front side wall and the rear side wall of the upper half of the sleeve B (521), the connecting shaft (522) is sleeved in the sleeve B (521), a through hole (525) is penetrated through the upper end of the connecting shaft (522), the lifting rod (523) penetrates through the strip-shaped sliding groove (524) and penetrates through the through hole (525) to limit the connecting shaft (522) in the sleeve B (521), the fixer (515) is integrally connected by an arc plate (503) and two lug plates (504) which are in front-back symmetry, a pin shaft M (514) penetrates through the two lug plates (504) and a box body, the fixer (515) is limited on the right upper part of the box body, namely the arc plate (503) is vertically and rotationally connected to the front side and the rear side of the right upper part of the box body through a pin shaft M (514), the end part (503) is just penetrated by a zigzag shape, namely, the end part (503) is just right and a knob (518) is penetrated through the right side (518) and a zigzag shape, namely, a knob (512) is connected to a knob (512) through the zigzag shape, a knob (512), and a knob (512) is sequentially penetrated through a zigzag shape, and a knob (512) The right side of the handle (518).

2. The quantifiable opening and pulling device for lumbar vertebra slippage reduction according to claim 1, wherein a torsion spring (505) is sleeved on a pin shaft M (514) positioned in the box body, and in a natural state, the right end part of the arc plate (503) is clamped into a sawtooth groove under the elastic action of the torsion spring (505), and when the vertebral body deviation correcting device (5) needs to be adjusted and moved, the left end part of the arc plate (503) is pressed downwards, so that the right end part of the arc plate (503) is separated from the sawtooth groove.

3. The quantifiable distraction lifting device for lumbar spondylolisthesis reduction of claim 1 wherein the outer sidewall of the notch of the bar shaped chute (524) is provided with graduation marks (526).

4. The quantifiable distraction lifting device for lumbar spondylolisthesis reduction of claim 1, wherein the outer side wall of the lower end of the connecting shaft (522) is provided with threads, the threads are just connected with a screw seat (506) on a universal pedicle screw, the center of the bottom of the connecting shaft (522) is downwards provided with a limit protrusion (527), and the limit protrusion (527) is matched with a clamping groove (71) on the top of a screw on the universal pedicle screw (7).

5. The quantifiable opening and pulling device for lumbar spondylolisthesis reduction of claim 1 characterized in that two groups of circular protrusions (41) which are bilaterally symmetrical are arranged on the inner side wall of the bottom of the sleeve A (4) from top to bottom, the central connecting line of each group of circular protrusions (41) is intersected with the central line of the sleeve A (4), and when the sleeve A (4) is sleeved on a universal pedicle screw (7) driven into a vertebral body, the circular protrusions (41) are just clamped in a hole groove (72) matched with the universal pedicle screw (7).

6. The quantifiable distraction lifting device for lumbar spondylolisthesis reduction of claim 1 wherein the diseased vertebral body part (6) is a fourth vertebral body (61), a fifth vertebral body (62) and between the fourth vertebral body and the fifth vertebral body, wherein the fourth vertebral body (61) and the fifth vertebral body (62) are embedded with a universal pedicle screw (7) and the two universal pedicle screws (7) are positioned on the same side and the same vertical column of the lumbar vertebra.