CN107349035B

CN107349035B - Motive force endophytes for spinal decompression

Info

Publication number: CN107349035B
Application number: CN201710674740.7A
Authority: CN
Inventors: 邹德威
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-09
Filing date: 2017-08-09
Publication date: 2024-05-03
Anticipated expiration: 2037-08-09
Also published as: CN107349035A

Abstract

The invention discloses a motive power endophyte for vertebral decompression, which comprises a base plate (10) and a first plugboard (20), wherein two racks are fixedly connected to one side edge of the base plate (10), the first plugboard (20) comprises two gears, the first plugboard (20) is spliced with the base plate (10), and a first gear (21) and a second gear (22) are meshed with each other; when the first gear (21) is screwed, the distance between the first plug board (20) and the base board (10) can be adjusted. This a motive force internal plant for vertebra decompression is first, through predetermineeing the track, can ensure accurate adaptation, convenient implantation and safety. Secondly, the adjustable axial expansion and compression can realize accurate adjustment of the clearance, and the decompression and implantation are integrated into one step. Thirdly, the endophytes and the upper and lower vertebras form a three-dimensional integral mechanical module, the screws are implanted into cancellous bones of the vertebras, the tracks are embedded into end plates, and the tracks are meshed with the fusion device to realize the fixation between interfaces.

Description

Motive force endophytes for spinal decompression

Technical Field

The invention relates to a medical apparatus, in particular to a motive power endophyte for spinal decompression.

Background

The anterior cervical intervertebral space decompression and bone grafting fusion are classical operations for half a century, and are the only effective methods for solving the problem of cervical vertebra degeneration and spinal cord compression spinal cord cervical spondylosis. The key to the procedure is the thorough decompression of the spinal cord. The gap left after decompression is cleaned to leave defect, and the bone grafting fusion reconstruction is required to be stable. In addition to the traditional autologous ilium three-sided cortical bone block filling bone grafting, various new techniques have been applied successively in recent years. Aiming at the complications such as bone block falling, shifting, sinking and the like after bone grafting and the complications such as nerve injury, pain, infection and the like in ilium supply areas, the main technology widely adopted except for replacing bone grafting materials is as follows: the intervertebral bone grafting fusion device is fixed by adding an anterior steel plate, so that a representative main technology at present is formed, and even the main technology is called a 'gold standard' for treating retrogression.

The problems of the prior art are: the key of anterior cervical surgery is to completely and effectively decompress the spinal cord from the intervertebral space, but in the process of cervical degeneration, the intervertebral space is mostly severely narrowed, and common surgical instruments such as curettes, nucleus pulposus forceps and the like are difficult to enter, so that the sight is severely blocked. Therefore, to achieve thorough and effective decompression, firstly, the vertebral nails and the external vertebral body spreader are used for axially spreading the intervertebral space with the degenerated and narrowed intervertebral space, expanding the intervertebral space, enabling the sight of the operator to see the pressed object protruding into the vertebral canal clearly, sending the instrument into the vertebral canal, and carefully separating and taking out the pressed object from the surface of the spinal cord. However, after the step is implemented, the vertebral body nail is often cut in the cancellous bone of the vertebral body, so that the cancellous bone fracture and iatrogenic osteoporosis are caused; after decompression is completed, the implanted intervertebral bone grafting fusion device is currently made of metal with hardness far greater than that of cancellous bone and polyvidone materials, and the fusion device has large height step span, so that the anatomical suitability is poor: the loose dislocation is easy to occur if the height is insufficient; if the height is too large, the intervertebral disc is easy to sink and squeeze into the upper or lower vertebral bodies, so that the intervertebral space is re-narrowed. To prevent these problems, the anterior plate is generally added to fix after the intervertebral bone fusion device is implanted, but the cancellous bone is damaged once or even cut by using the vertebral body nails for expanding in operation. All plants approved for clinical use in the anterior cervical approach at present do not have the capability of being axially spread backwards, such as an intervertebral fusion device and a steel plate, and once the plants are implanted, the vision is completely shielded, and any decompression can not be performed any more, so after the decompression is completed, the vertebral body nails destroy cancellous bone, and the steel plate is implanted again, so the stability of the steel plate screws is greatly reduced, and the potential danger of loosening the steel plate exists. In recent years, the non-fusion technology (non-fusion endoprosthesis implantation using artificial cervical intervertebral disc) of functional reconstruction is adopted without fusion after decompression, and the purpose of the non-fusion endoprosthesis is to preserve the function of reconstructing the movement, so that the non-fusion endoprosthesis cannot be fixed by adding a steel plate. Degenerative diseases frequently occur in middle-aged and elderly people, and osteoporosis with different degrees is often combined, so that serious complications such as dislocation, loosening, sinking and the like of a bone grafting fusion device are often caused, particularly, an artificial cervical intervertebral disc fixed by a steel plate is not added any more, the serious complications are caused, and the operation is completely failed, so that the serious problems puzzled to both doctors and patients are caused, and the problem is not solved satisfactorily at present.

Disclosure of Invention

In order to solve the problem that the existing endophyte system is inconvenient to use in a vertebra decompression operation, the invention provides a motive power endophyte for vertebra decompression, and the motive power endophyte for vertebra decompression is first and can ensure accurate adaptation, convenient implantation and safety through a preset track. Secondly, the adjustable axial expansion and compression can realize accurate adjustment of the clearance, and the decompression and implantation are integrated into one step. Thirdly, the endophytes and the upper and lower vertebras form a three-dimensional integral mechanical module, the screws are implanted into cancellous bones of the vertebras, the tracks are embedded into end plates, and the tracks are meshed with the fusion device to realize the fixation between interfaces.

The technical scheme adopted for solving the technical problems is as follows: a photodynamic endophyte for spinal decompression comprising: the base plate and one side edge of the base plate are fixedly connected with two racks, wherein the two racks are a first rack and a second rack respectively, and the first rack and the second rack are parallel to each other; the first plugboard is inserted with two racks of the base board, the first gear and the second gear are positioned between the first rack and the second rack, the first gear and the second gear are meshed with each other, the first gear is meshed with the first rack, and the second gear is meshed with the second rack; when the first gear is screwed, the distance between the first plugboard and the base plate can be increased or decreased.

The edge of one side of the foundation plate is fixedly connected with a first inserting track, the first inserting track is located between the first rack and the second rack, the first inserting track is columnar, and the first inserting track is perpendicular to the foundation plate.

The first plugboard is internally provided with two gear installation grooves and two rack plugging channels, the two gear installation grooves are respectively a first gear installation groove and a second gear installation groove, the two rack plugging channels are respectively a first rack plugging channel and a second rack plugging channel, the first gear installation groove is communicated with the second gear installation groove, the first gear installation groove is also communicated with the first rack plugging channel, and the second gear installation groove is also communicated with the second rack plugging channel.

The first gear is located first gear mounting groove, first gear mounting groove and first gear phase-match, the second gear is located second gear mounting groove, second gear mounting groove and second gear phase-match, first rack peg graft in first rack grafting passageway, second rack peg graft in second rack grafting passageway.

Be equipped with first stand in the first gear mounting groove, outside first stand was located to first gear cover, first gear could use first stand as the axle rotation, the one end and the first plugboard fixed connection of first stand, and the other end of first stand is equipped with first screw, and the head of first screw can prevent that first gear from breaking away from first gear mounting groove.

The first sliding groove is arranged in the first plugboard, the locking tooth is arranged in the first sliding groove, one end of the locking tooth is a sharp angle, the first sliding groove is communicated with the first gear installation groove or the second gear installation groove, the locking tooth can slide along the first sliding groove, and when one end of the locking tooth is inserted into the edge of the gear and is fixed, the gear can not rotate any more.

Be equipped with a plurality of bar recesses that are used for screwing up first gear on the first gear, a plurality of bar recesses are evenly spaced along the circumference of first gear and are arranged, and the size and the structure of first gear and second gear are the same.

The edge of one side of the foundation plate is provided with a first hook-shaped part, the first hook-shaped part is positioned between the first rack and the second rack, the two gears are positioned on the front surface of the foundation plate, the opening of the first hook-shaped part faces the back surface of the foundation plate, one end of the first plugboard, which faces the foundation plate, is provided with a second hook-shaped part, and the first hook-shaped part and the second hook-shaped part are symmetrically arranged and are mirror images.

The primary power interior plant for vertebra decompression further comprises a second plugboard, the second plugboard is identical to the first plugboard in size and structure, the second plugboard is spliced with the two racks of the foundation board, and the foundation board, the first plugboard and the second plugboard are sequentially arranged along the straight line direction.

The other side edge fixedly connected with third rack and fourth rack of this foundation plate, third rack and fourth rack are parallel to each other, the interior plant of motive power for vertebra decompression still includes the third plugboard, and the size and the structure of third plugboard and first plugboard are the same, and the third plugboard is pegged graft with third rack and the fourth rack of this foundation plate, and third plugboard, foundation plate and first plugboard are arranged in proper order along the straight line direction.

The beneficial effects of the invention are as follows:

first, through predetermining the track, can ensure accurate adaptation, convenient implantation and safety.

Secondly, the axial expansion and compression can be adjusted, the accurate adjustment of the clearance is realized, the decompression and implantation are integrated into one step, a three-dimensional stable mechanical module is formed with the pathological change segment of the spine, and the complications of displacement, sinking, dislocation and the like of the fusion cage (or artificial intervertebral disc) are thoroughly eliminated.

Thirdly, the endophytes and the upper and lower vertebras form a three-dimensional integral mechanical module, the screws are implanted into cancellous bones of the vertebras, the tracks are embedded into end plates, and the tracks are meshed with the fusion device to realize the fixation between interfaces.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.

FIG. 1 is a front view of a plant in motive force for spinal decompression as described in example 1 of the present invention.

Fig. 2 is a schematic view showing the state of distraction of the plants in the motive force for spinal decompression according to example 1 of the present invention.

Fig. 3 is a schematic perspective view of a first board according to embodiment 1 of the present invention.

Fig. 4 is a perspective view of a base plate in embodiment 1 of the present invention.

Fig. 5 is a perspective view showing a state of clamping a plant in a motive force for spinal decompression according to example 1 of the present invention.

Fig. 6 is a perspective view showing the state of the distraction of the plants in the motive force for spinal decompression according to example 1 of the present invention.

Fig. 7 is a schematic perspective view of an implant according to example 1 of the present invention.

Fig. 8 is a schematic view showing the use state of the endo-motive plant for spinal decompression according to example 1 of the present invention.

Fig. 9 is a cross-sectional view of the first plug board of embodiment 1 of the present invention without gears.

Fig. 10 is a cross-sectional view of the first plug board of embodiment 1 of the present invention including a gear.

Fig. 11 is an enlarged view of the locking tooth portion in embodiment 1 of the present invention.

Fig. 12 is a schematic view of the structure of the gear screwing tool.

Fig. 13 is a front view of a motive force endophyte for spinal decompression as described in example 2 of the present invention.

Fig. 14 is a schematic perspective view of an end portion of a first board according to embodiment 2 of the present invention.

Fig. 15 is a schematic cross-sectional view of an end portion of a first board according to embodiment 2 of the present invention.

Fig. 16 is a perspective view of an implant according to embodiment 2 of the present invention.

FIG. 17 is a schematic view showing the use state of the endo-motive plant for spinal decompression according to example 2 of the present invention.

Fig. 18 is a front view of a motive force endophyte for spinal decompression as described in example 3 of the present invention.

Fig. 19 is a front view of a motive force endophyte for spinal decompression as described in example 4 of the present invention.

Fig. 20 is another implementation of a motive endophyte for spinal decompression.

10. A base plate; 20. a first plugboard; 30. a second plugboard; 40. a third plugboard; 50. a vertebra; 11. a first rack; 12. a second rack; 13. a first plugging track; 14. screw holes; 15. a first hook portion; 16. a third rack; 17. a fourth rack;

21. A first gear; 22. a second gear; 23. a first gear mounting groove; 24. a second gear mounting groove; 25. the first rack is inserted into the channel; 26. a second rack plugging channel; 27. a first upright; 28. a second upright; 29. a first screw; 210. a second screw; 211. a first chute; 212. locking teeth; 213. a strip-shaped groove; 214. a second hook portion; 215. and a second plugging track.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

A motive endophyte for spinal decompression comprising a base plate 10 and a first plugboard 20; the upper side edge of the base plate 10 is fixedly connected with two racks, namely a first rack 11 and a second rack 12, and the first rack 11 and the second rack 12 are parallel to each other; two gears are fixed in the first plugboard 20, the two gears are a first gear 21 and a second gear 22 respectively, the first plugboard 20 is spliced with two racks of the base board 10, the first gear 21 and the second gear 22 are positioned between the first rack 11 and the second rack 12, the first gear 21 and the second gear 22 are meshed with each other, the first gear 21 is meshed with the first rack 11, and the second gear 22 is meshed with the second rack 12; screw holes 14 are formed in the base plate 10 and the first plugboard 20; when the first gear 21 is screwed, the distance between the first plug board 20 and the base board 10 can be increased or decreased, as shown in fig. 1 and 2.

In this embodiment, the upper edge of the base board 10 is also fixedly connected with a first plugging track 13, the first plugging track 13 is located between the first rack 11 and the second rack 12, the first plugging track 13 is columnar, and the first plugging track 13 is perpendicular to the base board 10. The cross section of the first inserting track 13 is triangular, and the two sides of the first inserting track 13 are also provided with fins. The lower edge of the first plugboard 20 is also fixedly connected with a second pluging track 215, and the second pluging track 215 and the first pluging track 13 are vertically symmetrical and mirror images. As shown in fig. 1 to 8, the implant may be inserted between the base plate 10 and the first plug plate 20 in the spread state of the plants in the motive force for spinal decompression. The base plate 10 and the first plug plate 20 lie in the same plane.

In this embodiment, the front surface of the first plugboard 20 further includes two gear mounting grooves, which are a first gear mounting groove 23 and a second gear mounting groove 24, and two rack plugging channels, which are a first rack plugging channel 25 and a second rack plugging channel 26, respectively, the first gear mounting groove 23 is in communication with the second gear mounting groove 24, the first gear mounting groove 23 is also in communication with the first rack plugging channel 25, and the second gear mounting groove 24 is also in communication with the second rack plugging channel 26.

In the present embodiment, the first gear 21 is located in the first gear mounting groove 23, the first gear mounting groove 23 is matched with the first gear 21, the second gear 22 is located in the second gear mounting groove 24, the second gear mounting groove 24 is matched with the second gear 22, the first rack 11 is inserted into the first rack insertion channel 25, the second rack 12 is inserted into the second rack insertion channel 26, and the first rack insertion channel 25 and the second rack insertion channel 26 can prevent the first gear 21 and the second gear 22 from being separated from the first plugboard 20 in the radial direction.

In this embodiment, the first gear mounting groove 23 is internally provided with the first upright post 27, the first gear 21 is sleeved outside the first upright post 27, the first gear 21 can rotate with the first upright post 27 as an axis, the first gear 21 and the first upright post 27 can be in transition fit, one end of the first upright post 27 is fixedly connected with the first plugboard 20, the other end of the first upright post 27 is provided with the first screw 29, and the outer diameter of the head of the first screw 29 is larger than the space between the central holes of the first gear 21, so that the head of the first screw 29 can prevent the first gear 21 from being axially separated from the first gear mounting groove 23, as shown in fig. 9 and 10.

In this embodiment, the second gear mounting groove 24 is internally provided with a second upright post 28, the second gear 22 is sleeved outside the second upright post 28, the second gear 22 can rotate with the second upright post 28 as an axis, one end of the second upright post 28 is fixedly connected with the first plugboard 20, the other end of the second upright post 28 is provided with a second screw 210, and the head of the second screw 210 can prevent the second gear 22 from being axially separated from the second gear mounting groove 24. The second screw 210 is the same size and configuration as the first screw 29.

In this embodiment, in order that the distance between the base board 10 and the first plugboard 20 can be fixed, a first sliding groove 211 is provided in the first plugboard 20, a locking tooth 212 is provided in the first sliding groove 211, one end of the locking tooth 212 is pointed, as shown in fig. 11, the first sliding groove 211 communicates with the first gear mounting groove 23 or the second gear mounting groove 24, the locking tooth 212 can slide along the first sliding groove 211, and when one end of the locking tooth 212 is inserted into the edge of the gear and fixed, the gear cannot rotate any more.

Specifically, as shown in fig. 1 and 2, the first sliding groove 211 communicates with the second gear installation groove 24, the locking tooth 212 can slide along the first sliding groove 211, and one end of the locking tooth 212 can be inserted between teeth of the edge of the second gear 22 so that neither the first gear 21 nor the second gear 22 can rotate, and thus the distance between the base plate 10 and the first plugboard 20 can be fixed. When one end of the locking tooth 212 is inserted between teeth of the edge of the second gear 22, the locking tooth 212 may be fixed in the first sliding groove 211 by a screw. The cross section of the locking tooth 212 is of an inverted T-shaped structure, and the cross section of the first sliding groove 211 is matched with the cross section of the locking tooth 212, so that the locking tooth 212 can be prevented from being separated from the first sliding groove 211.

In this embodiment, a plurality of bar-shaped grooves 213 for screwing the first gear 21 are provided on the first gear 21, the plurality of bar-shaped grooves 213 are uniformly spaced along the circumferential direction of the first gear 21, and the first gear 21 and the second gear 22 are identical in size and structure. The first gear mounting groove 23 and the second gear mounting groove 24 are the same in size and structure. In order to facilitate screwing the first gear 21 and the second gear 22, the invention also provides a gear screwing tool, as shown in fig. 12, one end of the gear screwing tool is provided with a plurality of strip-shaped ribs, and after the strip-shaped ribs are matched and butted with the strip-shaped grooves 213 of the gear, the gear can be conveniently screwed by rotating the tool.

Example 2

This embodiment is a modification of embodiment 1, and differs from embodiment 1 in that the upper side edge of the base plate 10 is provided with a first hook portion 15, the first hook portion 15 is located between the first rack 11 and the second rack 12, the two gears are located on the front surface of the base plate 10, the opening of the first hook portion 15 faces the back surface of the base plate 10, the end of the first plug board 20 (the lower end in fig. 13) facing the base plate 10 is provided with a second hook portion 214, and the first hook portion 15 and the second hook portion 214 are symmetrically arranged and mirror images of each other, as shown in fig. 13 to 15.

The front surface of the base plate 10 is a surface facing the outside of the drawing sheet in fig. 13, the middle part of the upper side edge of the base plate 10 is provided with a first sliding groove, the middle part of the lower side edge of the first plugboard 20 is provided with a second sliding groove, and the implant matched with the motive force endophyte for spinal decompression is shown in fig. 16.

In this embodiment, the first hook portion 15 and the second hook portion 214 are used to be inserted into the vertebra 50 and connected and fixed to the vertebra 50, and the implant shown in fig. 16 can be inserted between the base plate 10 and the first plug plate 20 in the state of being spread by the plant in the motive force for decompressing the vertebra, and the implant is inserted as shown in fig. 17. The length-width dimensions of the base plate 10 and the first plug plate 20 correspond to the width and height of the spine 50.

Other technical features of this embodiment are the same as those of embodiment 1, and for the sake of economy, this embodiment will not be described in detail.

Example 3

The photodynamic endophytes for spinal decompression described in example 1 or example 2 are the most common lesions for single gaps. In recent years, double gap lesions have also been on the rise. In order to solve this problem, this embodiment is an improvement over embodiment 1 or embodiment 2.

In this embodiment, the motive force endophyte for spinal decompression further includes a second plugboard 30, the second plugboard 30 has the same size and structure as the first plugboard 20, the second plugboard 30 is in socket connection with two racks of the base board 10, and the base board 10, the first plugboard 20 and the second plugboard 30 are sequentially arranged along a straight line direction, as shown in fig. 18. In use, the base plate 10, the first plugboard 20 and the second plugboard 30 can be connected and fixed with three vertebrae in one-to-one correspondence, thereby realizing double-gap decompression.

In addition, the said motive force for vertebra decompression is built-in plant can include the second plugboard 30 of the multiple pieces, the foundation board 10, first plugboard 20 and multiple second plugboard 30 are arranged sequentially along the straight line direction, realize the connection like train carriage, realize the use of more than one section multi-gap pathological changes of cervical vertebra, make this invention cover decompression, fusion of cervical vertebra gap pathological changes.

In the present embodiment, the second board 30 may be the same as the first board 20 described in embodiment 1, and the second board 30 may be the same as the first board 20 described in embodiment 2. The base plate 10 may be the same as the base plate 10 described in embodiment 1, and the base plate 10 may be the same as the base plate 10 described in embodiment 2.

Other technical features of this embodiment are the same as those of embodiment 1 or embodiment 2, and for the sake of economy, this embodiment will not be described in detail.

Example 4

In order to solve the problems of the multi-gap disease and the narrow and pathological changes of the embodiment 3, the lower side edge of the base plate 10 is fixedly connected with a third rack 16 and a fourth rack 17, the third rack 16 and the fourth rack 17 are parallel to each other, the motive force endophyte for the vertebra decompression further comprises a third plugboard 40, the size and the structure of the third plugboard 40 are the same as those of the first plugboard 20, the third plugboard 40 is in plug connection with the third rack 16 and the fourth rack 17 of the base plate 10, and the third plugboard 40, the base plate 10 and the first plugboard 20 are sequentially arranged along the straight line direction, as shown in fig. 19.

In use, the third plug board 40, the base board 10 and the first plug board 20 may be connected and fixed in a one-to-one correspondence with the three vertebrae 50, thereby achieving multi-gap decompression. The third rack 16 may be mirror images of the first rack 11 and the second rack 12 may be mirror images of the fourth rack 17.

Other technical features of this embodiment are the same as those of embodiment 3, and for the sake of economy, this embodiment will not be described in detail.

Clinical practice of cervical vertebra artificial joints in recent ten years continuously verifies whether the purpose of retaining the movement function of the intervertebral joint in the physiological state is successful or not, and the stress born again by the cervical vertebra artificial joints is closely related to whether the adjacent living vertebrae in the upper and lower physiological states reach the re-accurate balance or not, and the key point of the stress re-balance is the same accurate height in the stress environment, so that the stress re-balance is a determining factor. Analysis from the failure cases, or too high tension of the implanted artificial intervertebral disc, the endplate is crushed and sunk into the vertebral body, so that the movement function is lost; or too low, too low tension to loosen and fall. For this reason, there is no unified standard data, such as high correction, fat and thin of the crowd, the body needs to be cut, the body needs to be personalized, the height matched with the upper and lower normal intervertebral space of each implanted object, no external force is used for accurately regulating and controlling the countermeasure under the environment of biological and mechanical cohesive stress, and the skill and the feeling of doctors are difficult to perfectly realize, which is the fact of no contentions. Only the height matching with the normal intervertebral space above and below each implant can maximally realize the balance of cohesive stress, which has become the determining factor for the success or failure of the implantation of the artificial intervertebral disc at present. I.e. "according to the individualised ideal height, the same precisely adapted prosthesis implantation is chosen, so that a redistribution of the physical tensions is achieved to achieve equilibrium. The double positive and negative threaded bolts of the invention can be adjusted in parallel, so that the aim can be completely achieved, and after ideal adjustment is completed, the artificial intervertebral disc which is completely adapted is implanted and inserted and fixed along the central monorail. At this time, the power device is removed, so that a perfect low plane is realized, the artificial intervertebral disc is enabled to realize the inter-segment movement with six degrees of freedom in the three-dimensional space, hidden danger of displacement, sinking and falling off in the movement of the artificial intervertebral disc is eliminated due to the embedding effect of the track, and the artificial intervertebral disc and the whole of the inner plant form a three-dimensional stable mechanical module combined with dynamic and static. Any existing artificial intervertebral disc with other intellectual property rights can be used simultaneously by adding a rail groove which is matched with the single arm inserted into the intervertebral space and embedded with the invention on the central axis of the upper surface and the lower surface, thereby realizing the functions.

The scheme has more definite advantages in the use of a fusion mode (the mode which is most used at present), and more definite embodies the originality which is not available in the prior art, and is specifically as follows:

a. the utility model has the advantages of having the low plane completely consistent with all steel plates, eliminating the external bulge, being more suitable for the installation in human body, and thoroughly eliminating the hidden trouble that the protrusion can interfere the trachea and esophagus adjacent to the protrusion in front of the cervical vertebra.

B. The adjustment is more convenient, the double-sided positive and negative threaded bolt needs to be designed with a special tool, and the double sides rotate simultaneously, so that only one side rotates, and the other side is restricted, and according to the scheme, only any one of two gears lying in the first plugboard 20 is required to be adjusted, and the foundation board 10 and the first plugboard 20 can be easily separated and folded, and also, the adjustment is stopped, even if the state is solidified, the locking teeth arranged on the surface are pushed, and even if the overall locking is realized (as shown in the figure).

The core connotation of the invention is clearly revealed for modern biomechanical research, is continuously revealed in reality, is neglected, is obviously not commonly known, but breaks through the traditional mode of repairing the static structure by the static structure in the key link for preventing the most fundamental purpose of operation, is based on deeper cognition of biomechanical dynamic internal environment, tightly withholds the contradictory focus of dynamic and static, endows the dynamic structure with active regulation and control power, resists the apparent static state in a living body, objectively, truly and conceals the existing strong cohesive stress, is actually the image of the hidden dynamic repair in the force, achieves the reconstruction of new dynamic balance, realizes the elimination of pathological state, continuously resists the pathogenic factor, reconstructs new physiological environment in the balance state, enables the living body to be continued as long as possible after the pathological change is eliminated, enables the living body to obtain the state with the highest quality in the limited process, and is not only buried and fixed by the pathological change which is still possible, thus the invention has the main points of being pursued:

1. the method follows the objective rules of the environment in biomechanics, and has the clear, visible, credible and realizable real effect from practice to practice.

2. The core connotation aims at the contradiction focus of 'dynamic' and 'static' in biomechanical internal environment, so that the basic purpose of operation is realized firstly through a dynamic internal fixation structure in force antagonism, spinal cord compression is thoroughly and safely relieved, accurate regulation and control are realized, new physiological balance is achieved in dynamic antagonism, and accurate solidification is realized on the basis.

The foregoing description of the embodiments of the invention is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention shall fall within the scope of the patent. In addition, the technical characteristics and technical scheme, technical characteristics and technical scheme can be freely combined for use.

Claims

1. A photodynamic-internal plant for spinal decompression, the photodynamic-internal plant for spinal decompression comprising:

The base plate (10) and one side edge of the base plate (10) are fixedly connected with two racks, wherein the two racks are a first rack (11) and a second rack (12) respectively, and the first rack (11) and the second rack (12) are parallel to each other;

The first plugboard (20) and the first plugboard (20) are internally provided with two gears, the two gears are a first gear (21) and a second gear (22) respectively, the first plugboard (20) is in plug connection with two racks of the base board (10), the first gear (21) and the second gear (22) are positioned between the first rack (11) and the second rack (12), the first gear (21) and the second gear (22) are meshed with each other, the first gear (21) is meshed with the first rack (11), and the second gear (22) is meshed with the second rack (12);

Screw holes (14) are formed in the foundation plate (10) and the first plugboard (20), and when the first gear (21) is screwed, the distance between the first plugboard (20) and the foundation plate (10) can be increased or decreased;

The first plugboard (20) also comprises two gear installation grooves and two rack insertion channels, the two gear installation grooves are a first gear installation groove (23) and a second gear installation groove (24) respectively, the two rack insertion channels are a first rack insertion channel (25) and a second rack insertion channel (26) respectively, the first gear installation groove (23) is communicated with the second gear installation groove (24), the first gear installation groove (23) is also communicated with the first rack insertion channel (25), and the second gear installation groove (24) is also communicated with the second rack insertion channel (26);

The first gear (21) is positioned in the first gear mounting groove (23), the first gear mounting groove (23) is matched with the first gear (21), the second gear (22) is positioned in the second gear mounting groove (24), the second gear mounting groove (24) is matched with the second gear (22), the first rack (11) is inserted into the first rack insertion channel (25), and the second rack (12) is inserted into the second rack insertion channel (26);

A first upright post (27) is arranged in the first gear mounting groove (23), the first gear (21) is sleeved outside the first upright post (27), the first gear (21) can rotate by taking the first upright post (27) as an axis, one end of the first upright post (27) is fixedly connected with the first plugboard (20), a first screw (29) is arranged at the other end of the first upright post (27), and the head of the first screw (29) can prevent the first gear (21) from being separated from the first gear mounting groove (23);

a second upright post (28) is arranged in the second gear mounting groove (24), the second gear (22) is sleeved outside the second upright post (28), the second gear (22) can rotate by taking the second upright post (28) as an axis, one end of the second upright post (28) is fixedly connected with the first plugboard (20), a second screw (210) is arranged at the other end of the second upright post (28), and the head of the second screw (210) can prevent the second gear (22) from being axially separated from the second gear mounting groove (24);

the edge of one side of the foundation plate (10) is fixedly connected with a first inserting track (13), the first inserting track (13) is positioned between the first rack (11) and the second rack (12), the first inserting track (13) is columnar, and the first inserting track (13) is vertical to the foundation plate (10);

A first sliding groove (211) in the first plugboard (20), a locking tooth (212) is arranged in the first sliding groove (211), one end of the locking tooth (212) is a sharp angle, the first sliding groove (211) is communicated with the first gear mounting groove (23) or the second gear mounting groove (24), the locking tooth (212) can slide along the first sliding groove (211), and when one end of the locking tooth (212) is inserted into the edge of the gear and is fixed, the gear can not rotate any more;

The first gear (21) is provided with a plurality of strip-shaped grooves (213) for screwing the first gear (21), the plurality of strip-shaped grooves (213) are uniformly distributed at intervals along the circumferential direction of the first gear (21), and the first gear (21) and the second gear (22) are identical in size and structure;

The edge of one side of the foundation plate (10) is provided with a first hook-shaped part (15), the first hook-shaped part (15) is positioned between a first rack (11) and a second rack (12), the two gears are positioned on the front surface of the foundation plate (10), the opening of the first hook-shaped part (15) faces the back surface of the foundation plate (10), one end of the first plugboard (20) facing the foundation plate (10) is provided with a second hook-shaped part (214), and the first hook-shaped part (15) and the second hook-shaped part (214) are symmetrically arranged and are mirror images;

the motive power endophyte for spinal decompression also comprises a second plugboard (30), wherein the second plugboard (30) has the same size and structure as those of the first plugboard (20), the second plugboard (30) is spliced with two racks of the foundation board (10), and the foundation board (10), the first plugboard (20) and the second plugboard (30) are sequentially arranged along the straight line direction;

The other side edge fixedly connected with third rack (16) and fourth rack (17) of this foundation board (10), third rack (16) and fourth rack (17) are parallel to each other, the interior plant of motive power for vertebra decompression still includes third plugboard (40), and size and structure are the same with first plugboard (20) third plugboard (40), and third plugboard (40) are pegged graft with third rack (16) and fourth rack (17) of this foundation board (10), and third plugboard (40), foundation board (10) and first plugboard (20) are arranged in proper order along sharp direction.