Fixed lifting assembly for spinal canal stenosis operation and lifting operation method of fixed lifting assembly

Abstract

The invention discloses a fixing and lifting assembly for spinal canal stenosis surgery, which comprises two rotary fixing clamps arranged at an interval, each rotary fixing clamp is provided with a fixing clamp male head and a fixing clamp female head which are rotatably connected, and connecting rods are arranged in the fixing clamp male heads of the two rotary fixing clamps in a penetrating manner; the connecting rod is anchored through a plurality of pedicle screws implanted into the target cone; a lifting fixing clamp provided with a lifting fixing male head and a lifting fixing female head which are rotationally connected is arranged between the two rotary fixing clamps, and a through hole connected with a lifting screw is formed in the lifting fixing male head; lifting nuts in threaded connection with the lifting screws are arranged on the lifting fixing female head and located on the two sides of the through hole. Transverse connecting rods are arranged on the two fixing clamp female heads and the lifting fixing male head in a penetrating mode at the same time to form a transverse supporting structure. The lifting operation method of the fixed lifting assembly for the spinal stenosis operation is applied to lifting operation of the fixed lifting assembly for the spinal stenosis operation, and has the advantages of being minimally invasive, high in stability, flexible to adjust and fast in postoperative recovery.

Description

Technical Field

[0001] The present invention relates to a fixing and lifting component for spinal canal stenosis surgery and a lifting operation method thereof, belonging to the technical field of spinal surgical instruments. Background Art

[0002] Lumbar spinal stenosis (LSS) is a common chronic degenerative spinal condition in the elderly. With aging, the bony and soft tissues within the spinal canal degenerate, resulting in a narrowing of the spinal canal and compression of the spinal cord, spinal nerve roots, and blood vessels, leading to symptoms such as pain, numbness, and weakness. Common symptoms include pain and numbness in the lower back and lower limbs, as well as intermittent claudication. Patients often have to stop and rest after walking for a while before continuing. Ossification of the ligamentum flavum (OLF) can also cause spinal stenosis, posing a serious health threat to patients. Ossification of the ligamentum flavum (LF) occurs due to various reasons, causing the ligament to thicken and harden, protruding into the spinal canal and compressing the spinal cord or nerve roots. This condition typically affects the thoracic spine (particularly the lower thoracic spine), causing patients to experience chest and back pain, lower limb sensory and motor impairments, and, in severe cases, paralysis. Symptoms gradually worsen over the course of the disease, interfering with daily life and even leaving patients bedridden.

[0003] At present, the treatment methods for lumbar spinal stenosis and ossification of the ligamentum flavum are mainly divided into non-surgical treatment and surgical treatment. Non-surgical treatment methods include physical therapy, drug therapy, etc. These methods can help relieve symptoms, but they cannot fundamentally solve the problem of spinal stenosis and have limited effects. Surgical treatment often improves symptoms through pedicle screw fixation and decompression. The surgery removes the diseased tissue or uses screws and connecting rods for fixation, expands the spinal canal space, and relieves nerve compression. Although surgical treatment can effectively alleviate symptoms, existing surgical methods still have some problems, such as large surgical trauma, slow recovery, unstable fixation, and insufficient lifting effect.

[0004] Existing fixation devices lack the flexibility to adapt to the complex relative positions of the different cones, resulting in unstable fixation and suboptimal lifting effects. Furthermore, traditional surgical methods require complex procedures and multiple adjustments, increasing the difficulty and risk of surgery and prolonging recovery time. While minimally invasive spinal technology has made some progress, it still cannot completely resolve issues such as postoperative complications, surgical stability, and lifting effects.

[0005] Therefore, how to provide a more stable, precise and simplified fixation and lifting device has become a technical problem that needs to be solved urgently in the surgical treatment of lumbar spinal stenosis and ossification of the ligamentum flavum. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, the present invention provides a fixed lifting assembly and lifting method for spinal stenosis surgery. The assembly effectively stabilizes the cone and provides a precise lifting effect, while simplifying the surgical procedure, improving surgical efficiency, and shortening the postoperative recovery period.

[0007] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0008] In a first aspect, the present invention provides a fixation and lifting assembly for spinal stenosis surgery, comprising:

[0009] A rotating fixing clip, wherein two rotating fixing clips are provided at intervals, and the rotating fixing clips have a fixing clip male head and a fixing clip female head that are rotatably connected, and a U-shaped through hole 1 and a U-shaped through hole 2 are respectively provided on the fixing clip male head and the fixing clip female head. A connecting rod is detachably passed through the U-shaped through hole 1 of the two rotating fixing clips, and a threaded hole 1 is provided on the side wall of the fixing clip female head. A set screw 1 is screwed into the threaded hole 1 to lock the fixing clip male head, thereby limiting the relative rotation of the fixing clip male head and the fixing clip female head;

[0010] The lifting and fixing clamp is arranged between the two rotating fixing clamps, and has a lifting and fixing male head and a lifting and fixing female head that are rotatably connected. The lifting and fixing male head is provided with a U-shaped through hole three, and the outer wall of the lifting and fixing female head is provided with a threaded hole two, and the threaded hole two is screwed with a set screw two to lock the lifting and fixing male head. The lifting and fixing female head is provided with a through hole for connecting the lifting screw, and the lifting screw is used to be implanted and connected to the target cone; lifting nuts that are threadedly connected to the lifting screw are provided on both sides of the lifting and fixing female head in the direction of the through hole, and the cone is moved backward by rotation;

[0011] A transverse connecting rod is passed through the U-shaped through hole 2 of the two fixing clamp female heads and the U-shaped through hole 3 of the lifting and fixing male head, and is used to connect the connecting rods on both sides to form a transverse supporting structure;

[0012] A plurality of pedicle screws are provided and respectively implanted into the target cones for anchoring the connecting rod.

[0013] Preferably, the U-shaped through hole 1 of the male fixing clamp and the U-shaped through hole 2 of the female fixing clamp are both provided with a threaded portion 1 for threadedly connecting a fixed clamping rod nut 1, the connecting rod is clamped between the inner wall of the U-shaped through hole 1 and the fixed clamping rod nut 1, and the transverse connecting rod is clamped between the inner wall of the U-shaped through hole 2 and the fixed clamping rod nut 1.

[0014] Preferably, a threaded portion 2 is provided in the U-shaped through hole 3 of the lifting and fixing male head to screw a fixed clamping rod nut 2, and the transverse connecting rod is clamped between the inner wall of the U-shaped through hole 3 and the fixed clamping rod nut 2.

[0015] Preferably, the through hole of the lifting and fixing female head is provided with anti-slip grooves to enhance the friction with the lifting screw.

[0016] Preferably, the male head of the fixing clamp is provided with a rotating connecting shaft 1, the female head of the fixing clamp is provided with a blind hole 1 that rotatably cooperates with the rotating connecting shaft 1, and the threaded hole 1 is connected to the blind hole 1; the male head of the lifting and fixing is provided with a rotating connecting shaft 2, the female head of the lifting and fixing is provided with a blind hole 2 that rotatably cooperates with the rotating connecting shaft 2, and the threaded hole 2 is connected to the blind hole 2.

[0017] Furthermore, the male head of the fixing clamp and the female head of the fixing clamp cooperate with the rotating connecting shaft one through the blind hole one to be adjusted at any axial angle, and the blind hole one and the rotating connecting shaft one adopt a clearance fit; the lifting and fixing male head and the lifting and fixing female head cooperate with the rotating connecting shaft two through the blind hole two to be adjusted at any axial angle, and the blind hole two and the rotating connecting shaft two adopt a clearance fit.

[0018] In a second aspect, the present invention provides a lifting method for a fixed lifting assembly for spinal stenosis surgery, characterized in that the lifting operation using the fixed lifting assembly for spinal stenosis surgery comprises the following steps:

[0019] Take the problem cone;

[0020] The spinous processes of the problematic cones were smoothed, and the pedicle screws and lifting screws were implanted bilaterally.

[0021] The unilateral lamina of the problematic cone is opened and the mastoid process and connecting tissue of the next cone are removed;

[0022] Install the connecting rod and the rotating clamp on the vertebral lamina side where the incision has been made on the problematic cone;

[0023] Use the lifting and fixing clamps to connect the transverse connecting rods to the lifting screws respectively, and use a lifting nut on the upper and lower sides of the lifting and fixing clamps to fix the lifting screws respectively;

[0024] Make an opening in the lamina on the other side of the problematic cone and remove the mastoid process and connecting tissue of the next cone;

[0025] Use a rotating fixing clamp to connect and fix the connecting rod on the second incision side to the transverse connecting rod;

[0026] Loosen the lifting nut close to the cone and rotate the distal lifting nut to move the cone backward.

[0027] Tighten the lifting nut on the cone side to complete the fixation.

[0028] Preferably, the problematic cone includes but is not limited to a physiological cone of the human body or an artificial cone prosthesis.

[0029] The present invention provides a fixed lifting assembly and lifting method for spinal stenosis surgery, which has the following advantages:

[0030] 1. The present invention provides a more precise and stable surgical device, which can not only effectively solve the problems of unstable fixation and insufficient lifting effect in the existing technology, but also simplify the surgical process, reduce surgical trauma, shorten postoperative recovery time, and improve the treatment effect and the patient's postoperative recovery speed.

[0031] 2. The present invention's fixed lifting assembly utilizes a rotating design that allows for flexible adjustment of the relative angle between the connecting rod and the transverse connecting rod. This structure adapts to the relative positions of different cones, ensuring precise fixation of the cone and avoiding the unstable fixation issues found in existing technologies.

[0032] 3. The present invention utilizes a lifting nut to precisely adjust the lifting screw. By rotating the lifting nut, the posterior displacement of the cone can be precisely controlled, effectively expanding the spinal canal and alleviating nerve compression. The lifting nut's simple and stable adjustment significantly enhances intraoperative convenience and improves the lifting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic structural diagram of a fixation and lifting assembly for spinal stenosis surgery provided by an embodiment of the present invention;

[0034] Figure 2 A schematic structural diagram of a rotary fixing clamp provided in an embodiment of the present invention;

[0035] Figure 3 A schematic cross-sectional view of a rotary fixing clamp provided in an embodiment of the present invention;

[0036] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the AA direction;

[0037] Figure 5 A schematic diagram of the structure of a lifting and fixing clamp provided in an embodiment of the present invention;

[0038] Figure 6 A schematic cross-sectional view of a lifting and fixing clamp provided in an embodiment of the present invention;

[0039] Figure 7A schematic diagram of the structure of the fixing and lifting assembly for spinal stenosis surgery provided by an embodiment of the present invention in cooperation with the spine;

[0040] Figure 8 A schematic diagram of the use of a fixation and lifting assembly for spinal stenosis surgery provided by an embodiment of the present invention;

[0041] Figure 9 This is a flowchart of a lifting method for a fixed lifting assembly used in spinal stenosis surgery according to an embodiment of the present invention.

[0042] In the picture:

[0043] 1-Connecting rod; 2-Transverse connecting rod; 3-Rotary fixing clamp; 31-Fixing clamp male head; 311-U-shaped through hole one; 312-Rotary connecting shaft one; 32-Fixing clamp female head; 321-U-shaped through hole two; 322-Threaded hole one; 323-Blind hole one; 33-Set screw one; 34-Fixing clamp pressure rod nut one; 4-Threaded part one; 5-Lifting fixing clamp; 51-Lifting fixing male head; 511-Rotary connecting shaft two; 512-U-shaped through hole three; 513-Threaded part two; 52-Lifting fixing female head; 521-Blind hole two; 522-Threaded hole two; 523-Through hole; 53-Set screw two; 54-Fixing clamp pressure rod nut two; 6-Lifting screw; 7-Lifting nut; 8-Pedicle screw; 9-Fixing clamp pressure rod nut three. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0045] Reference Figure 1 A fixation and lifting assembly for spinal stenosis surgery includes a rotation fixation clamp 3, a lifting fixation clamp 5, a connecting rod 1, a transverse connecting rod 2, a pedicle screw 8 and a lifting screw 6.

[0046] Reference Figures 1-4, two rotating fixing clips 3 are arranged at intervals, and the rotating fixing clip 3 has a fixing clip male head 31 and a fixing clip female head 32 that are rotatably connected. Specifically, a rotating connecting shaft 312 is integrally formed on the fixing clip male head 31, and a blind hole 323 is provided on the fixing clip female head 32 to rotate with the rotating connecting shaft 312. The initial connection between the fixing clip male head 31 and the fixing clip female head 32 is achieved by inserting the rotating connecting shaft 312 into the blind hole 323. The blind hole 323 and the rotating connecting shaft 312 are connected. By adopting clearance fit, the male head 31 of the fixing clamp and the female head 32 of the fixing clamp cooperate with the rotating connecting shaft 312 through a blind hole 323 to be adjusted at any axial angle; a threaded hole 322 is provided on the side wall of the female head 32 of the fixing clamp, and the threaded hole 322 is connected to the blind hole 323. A set screw 33 is screwed into the threaded hole 322 to lock the male head 31 of the fixing clamp, limit the relative rotation of the male head 31 of the fixing clamp and the female head 32 of the fixing clamp, and ensure the stability of the rotating fixing clamp 3 during surgery.

[0047] Furthermore, a U-shaped through hole 1 311 and a U-shaped through hole 2 321 are respectively formed on the male fixing clamp 31 and the female fixing clamp 32. A connecting rod 1 is detachably inserted into the U-shaped through hole 1 311 of the two rotating fixing clamps 3. The design of the U-shaped through hole allows the connecting rod 1 to pass smoothly through and connect with the rotating fixing clamp 3. Specifically, a threaded portion 1 4 is provided in the U-shaped through hole 1 311 of the male fixing clamp 31 and the U-shaped through hole 2 321 of the female fixing clamp 32 to be screwed with the fixing clamp pressure rod nut 1 34. The connecting rod 1 is clamped between the inner wall of the U-shaped through hole 1 311 and the fixing clamp pressure rod nut 1 34. By screwing in the fixing clamp pressure rod nut 1 34, the connecting rod 1 and the rotating fixing clamp 3 can be firmly fastened together to prevent the connecting rod 1 from loosening during surgery.

[0048] The two rotating fixing clamps 3 cooperate with each other to connect the connecting rods 1 on both sides, so that the connecting rods 1 form a transverse supporting structure, providing a stable supporting foundation for subsequent lifting operations.

[0049] Reference Figure 1 、 Figure 5 and Figure 6 The lifting and fixing clamp 5 is installed between the two rotating fixing clamps 3. The lifting and fixing clamp 5 has a lifting and fixing male head 51 and a lifting and fixing female head 52 that are rotatably connected. Specifically, a rotating connecting shaft 2 511 is integrally formed on the lifting and fixing male head 51, and a blind hole 2 521 is provided on the lifting and fixing female head 52 for rotatably matching with the rotating connecting shaft 2 511. The lifting and fixing male head 51 and the lifting and fixing female head 52 are matched with the rotating connecting shaft 2 511 through the blind hole 2 521 to be adjusted at any axial angle, and the blind hole 2 521 and the rotating connecting shaft 2 511 adopt a clearance fit.

[0050] Furthermore, a U-shaped through hole three 512 is provided on the lifting and fixing male head 51, and a threaded hole two 522 is provided on the outer wall of the lifting and fixing female head 52. The threaded hole two 522 is connected to the blind hole two 521, and a set screw two 53 is threaded in the threaded hole two 522 to lock the lifting and fixing male head 51. A through hole 523 for connecting the lifting screw 6 is provided on the lifting and fixing female head 52, and the lifting screw 6 is used to implant and connect the target cone; lifting nuts 7 threadedly connected to the lifting screw 6 are provided on both sides of the lifting and fixing female head 52 in the direction of the opening of the through hole 523. During the operation, the lifting operation of the cone can be achieved by rotating the lifting nut 7, thereby changing the position of the cone.

[0051] Furthermore, anti-slip grooves (not shown in the figure) are provided in the through hole 523 of the lifting and fixing female head 52. The anti-slip grooves can significantly enhance the friction between the lifting and fixing clamp 5 and the lifting screw 6, thereby ensuring the reliability of the connection between the lifting screw 6 and the lifting and fixing clamp 5 during the lifting operation.

[0052] The structural design of the present invention's rotating and lifting clamps 3 and 5 allows for arbitrary angle adjustment, achieved through a clearance fit between the blind hole of the female connector and the rotating shaft of the male connector. This design allows for high flexibility and adaptability of the entire fixation and lifting assembly during surgical procedures, allowing adjustments to be made based on the patient's specific condition and surgical needs.

[0053] Reference Figure 1 , a transverse connecting rod 2 is simultaneously passed through the U-shaped through hole 2 321 of the two fixing clamp female heads 32 and the U-shaped through hole 3 512 on the lifting and fixing male head 51, and a threaded portion 2 513 is provided in the U-shaped through hole 3 512 of the lifting and fixing male head 51 to screw the fixing clamping rod nut 2 54, and the transverse connecting rod 2 is simultaneously clamped between the inner wall of the U-shaped through hole 3 512 and the fixing clamping rod nut 2 54 and between the inner wall of the U-shaped through hole 2 321 and the fixing clamping rod nut 1 34. Under the action of the two rotating fixing clamps 3, the transverse connecting rod 2 connects the bilateral connecting rods 1 to form a stable transverse support system, which further enhances the stability of the entire fixing and lifting assembly during surgery.

[0054] Reference Figure 7 and Figure 8A fixed lifting assembly for spinal stenosis surgery also includes a pedicle screw 8. A plurality of pedicle screws 8 are arranged and implanted into the target cone respectively with the lifting screw 6. The plurality of pedicle screws 8 are used to anchor the connecting rod 1, providing a stable anchoring point for the entire fixed lifting assembly, ensuring that the entire assembly can be firmly attached to the cone during the operation and can maintain long-term stability after the operation. Specifically, a U-shaped through hole and a threaded hole are opened on the pedicle screw 8. The connecting rod 1 passes through the U-shaped through hole of the pedicle screw 8. A fixing clamping rod nut three 9 is screwed into the threaded hole. The anchoring of the connecting rod 1 is achieved by screwing in the fixing clamping rod nut three 9.

[0055] Reference Figure 7-Figure 9 The present invention provides a lifting method for a fixed lifting assembly for spinal stenosis surgery, which uses the fixed lifting assembly for spinal stenosis surgery to perform a lifting operation, including the following steps:

[0056] S1. Take the problem cone, which includes but is not limited to the human physiological cone or artificial cone prosthesis. Perform lifting experiments and exercises on the problem cone to facilitate clinical application. In this embodiment, the problem cone is taken as the spinal lumbar cone as an example.

[0057] S2, smoothing the spinous process of the problematic cone;

[0058] Specifically, the spinous process of the problematic cone is ground flat. This step provides a stable contact surface for the subsequent installation of the fixation device, ensuring that the fixed lifting component can be accurately fixed on the cone and avoiding unstable installation of the device due to uneven spinous process.

[0059] S3, implantation of bilateral pedicle screws 8 and levator screws 6;

[0060] After grinding the spinous process, according to the specific conditions of the problematic cone, holes are drilled on the problematic cone and pedicle screws 8 and lifting screws 6 are installed. The pedicle screws 8 are used to fix the cone, and the lifting screws 6 are used for subsequent cone lifting operations.

[0061] S4, the unilateral lamina of the problematic cone is opened and the mastoid process and connecting tissue of the next cone are removed;

[0062] An incision is made in the lamina on one side of the cone, exposing the structures within the spinal canal. The operator then cuts the lamina and removes the mastoid process, cartilage, and other tissues of the next cone connected to that side of the cone. This step aims to remove structures that would hinder the posterior movement of the cone, providing sufficient space for subsequent cone elevation. During the actual resection, the operator must be extremely careful to ensure that no important nerve roots or vascular structures are damaged.

[0063] S5, installing the connecting rod 1 and the rotating clamp 3 on the vertebral lamina side where the incision has been made on the problematic cone;

[0064] After removing excess tissue, install the connecting rod 1, rotate the fixing clamp 3, and use the fixing clamp pressure rod nut 34 to fix the connecting rod 1 to the pedicle screw 8 to ensure a stable connection between the connecting rod 1 and the cone.

[0065] S6. Use the lifting and fixing clamps 5 to connect the transverse connecting rods 2 to the lifting screws 6 respectively, and use a lifting nut 7 above and below the lifting and fixing clamps 5 to fix the lifting screws 6;

[0066] Specifically, after installing the connecting rod 1, proceed with installing the transverse connecting rod 2 and the lifting and fixing clamp 5. A lifting nut 7 is used above and below the lifting and fixing clamp 5 to secure the lifting screw 6. After the rotating fixing clamp 3 and the lifting and fixing clamp 5 are fixed in position, tighten the first set screw 33 and the second set screw 53. The transverse connecting rod 2 and the lifting and fixing clamp 5 together provide support and reinforcement, ensuring that the cone does not move during the lifting process.

[0067] S7: Open the lamina on the other side of the problematic cone and remove the mastoid process and connecting tissue of the next cone.

[0068] After completing the procedure on one side of the cone, the same procedure is performed on the other side of the cone, first opening the lamina and removing the soft tissue connected to that side of the cone.

[0069] S8. Use the rotating fixing clamp 3 to connect and fix the connecting rod 1 on the second incision side to the transverse connecting rod 2;

[0070] Install the connecting rod 1 and the rotating fixing clamp 3 on this side, use the rotating fixing clamp 3 to connect and fix the connecting rod 1 on this side to the horizontal connecting rod 2, and tighten the set screw 33 to ensure the stability of both sides of the cone.

[0071] S9, lifting operation and cone backward movement;

[0072] Specifically, loosen the lifting nut 7 close to the cone side, and then rotate the other lifting nut 7 to lift the free cone. The rotation of the other lifting nut 7 allows the cone that is free after cutting to gradually move backward, so that the spinal canal space is expanded, thereby reducing the pressure on the nerve roots. The lifting operation is the core of the entire lifting operation process. By rotating the lifting nut 7, the speed and amplitude of the cone's backward movement can be precisely controlled. The process of the cone's backward movement can be precisely adjusted to avoid excessive stretching or uneven lifting. After the cone moves backward, the space in the spinal canal is expanded, thereby reducing the pressure on the nerve roots and alleviating symptoms such as low back and leg pain and numbness.

[0073] S10, tighten the lifting nut 7 close to the cone side to complete the fixation;

[0074] After the lifting nut 7 reaches the appropriate position, the lifting nut 7 close to the cone side is locked to fix the free cone to the entire bracket, ensuring that the cone is stable in the final position after lifting and can remain stable for a long time after the lifting operation.

[0075] S11. Post-lifting supervision;

[0076] After the lifting procedure is completed, the stability and effectiveness of the work area are checked to ensure that the position of the cone is effectively fixed and the spinal canal space is expanded. Monitoring is then carried out and recovery usually begins within a few days.

[0077] The fixation and lifting assembly for spinal stenosis surgery of the present invention can also be used in a thoracic spine model. Since the anatomical structure of the thoracic spine is different from that of the lumbar spine, adjustments need to be made according to the physiological characteristics of the thoracic spine during incision selection, lamina opening, and tissue resection operations. The lifting and fixation process is the same as that of the lumbar spine and will not be elaborated on.

[0078] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form or substance. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be regarded as the scope of protection of the present invention. Any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the spirit and scope of the present invention by using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fixation and lifting assembly for spinal stenosis surgery, characterized in that: include: A rotating fixing clip, wherein two rotating fixing clips are provided at intervals, and the rotating fixing clips have a fixing clip male head and a fixing clip female head that are rotatably connected, and a U-shaped through hole 1 and a U-shaped through hole 2 are respectively provided on the fixing clip male head and the fixing clip female head. A connecting rod is detachably passed through the U-shaped through hole 1 of the two rotating fixing clips, and a threaded hole 1 is provided on the side wall of the fixing clip female head. A set screw 1 is screwed into the threaded hole 1 to lock the fixing clip male head, thereby limiting the relative rotation of the fixing clip male head and the fixing clip female head; The lifting and fixing clamp is arranged between the two rotating fixing clamps, and has a lifting and fixing male head and a lifting and fixing female head that are rotatably connected. The lifting and fixing male head is provided with a U-shaped through hole three, and the outer wall of the lifting and fixing female head is provided with a threaded hole two, and the threaded hole two is screwed with a set screw two to lock the lifting and fixing male head. The lifting and fixing female head is provided with a through hole for connecting the lifting screw, and the lifting screw is used to be implanted and connected to the target cone; lifting nuts that are threadedly connected to the lifting screw are provided on both sides of the lifting and fixing female head in the direction of the through hole, and the cone is moved backward by rotation; A transverse connecting rod is passed through the U-shaped through hole 2 of the two fixing clamp female heads and the U-shaped through hole 3 of the lifting and fixing male head, and is used to connect the connecting rods on both sides to form a transverse supporting structure; A plurality of pedicle screws are provided and respectively implanted into the target cones for anchoring the connecting rod.

2. The fixation and lifting assembly for spinal stenosis surgery according to claim 1, wherein: The U-shaped through hole 1 of the male head of the fixing clamp and the U-shaped through hole 2 of the female head of the fixing clamp are both provided with a threaded portion 1 for threadedly connecting a fixing clamping rod nut 1. The connecting rod is clamped between the inner wall of the U-shaped through hole 1 and the fixing clamping rod nut 1, and the transverse connecting rod is clamped between the inner wall of the U-shaped through hole 2 and the fixing clamping rod nut 1.

3. The fixation and lifting assembly for spinal stenosis surgery according to claim 1, wherein: A threaded portion 2 is provided in the U-shaped through hole 3 of the lifting and fixing male head to screw on the fixed clamping rod nut 2, and the transverse connecting rod is clamped between the inner wall of the U-shaped through hole 3 and the fixed clamping rod nut 2.

4. The fixation and lifting assembly for spinal stenosis surgery according to claim 1, wherein: The through hole of the lifting and fixing female head is provided with anti-slip lines to enhance the friction with the lifting screw.

5. The fixation and lifting assembly for spinal stenosis surgery according to claim 1, wherein: The male head of the fixing clamp is provided with a rotating connecting shaft 1, the female head of the fixing clamp is provided with a blind hole 1 that rotatably cooperates with the rotating connecting shaft 1, and the threaded hole 1 is connected to the blind hole 1; the male head of the lifting and fixing is provided with a rotating connecting shaft 2, the female head of the lifting and fixing is provided with a blind hole 2 that rotatably cooperates with the rotating connecting shaft 2, and the threaded hole 2 is connected to the blind hole 2.

6. The fixation and lifting assembly for spinal stenosis surgery according to claim 5, characterized in that: The male head of the fixing clamp and the female head of the fixing clamp cooperate with the rotating connecting shaft 1 through the blind hole 1 to be adjusted at any axial angle, and the blind hole 1 and the rotating connecting shaft 1 adopt a clearance fit; the lifting and fixing male head and the lifting and fixing female head cooperate with the rotating connecting shaft 2 through the blind hole 2 to be adjusted at any axial angle, and the blind hole 2 and the rotating connecting shaft 2 adopt a clearance fit.

7. A lifting method for a fixed lifting assembly used in spinal stenosis surgery, characterized in that: The lifting operation is performed using the fixed lifting assembly for spinal stenosis surgery according to any one of claims 1 to 6, comprising the following steps: Take the question cone; The spinous processes of the problematic cones were smoothed, and the pedicle screws and lifting screws were implanted bilaterally. The unilateral lamina of the problematic cone is opened and the mastoid process and connecting tissue of the next cone are removed; Install the connecting rod and the rotating clamp on the vertebral lamina side where the incision has been made on the problematic cone; Use the lifting and fixing clamps to connect the transverse connecting rods to the lifting screws respectively, and use a lifting nut on the upper and lower sides of the lifting and fixing clamps to fix the lifting screws respectively; Make an opening in the lamina on the other side of the problematic cone and remove the mastoid process and connecting tissue of the next cone; Use a rotating fixing clamp to connect and fix the connecting rod on the second incision side to the transverse connecting rod; Loosen the lifting nut close to the cone and rotate the distal lifting nut to move the cone backward. Tighten the lifting nut on the cone side to complete the fixation.

8. The lifting method of the fixed lifting assembly for spinal stenosis surgery according to claim 7, wherein: The problematic cones include but are not limited to human physiological cones or artificial cone prostheses.

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