CN218870594U

CN218870594U - Thoracolumbar fusion cage

Info

Publication number: CN218870594U
Application number: CN202222477267.2U
Authority: CN
Inventors: 高建华; 高山; 张晓娜; 卢东胜
Original assignee: Beijing Hua Kang Tian Yi Bio Tech Co ltd
Current assignee: Beijing Hua Kang Tian Yi Bio Tech Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-04-18
Anticipated expiration: 2032-09-19

Abstract

The utility model relates to a chest lumbar vertebrae fuses ware technical field, and discloses a chest lumbar vertebrae fuses ware, including chest lumbar vertebrae fuses ware, the cavity slot has been seted up at the middle part of chest lumbar vertebrae fuses ware, and the cavity slot that chest lumbar vertebrae fuses the ware lies in narrower both sides and all is equipped with the support main part, and the support frame mesopore has all been seted up at the middle part of support main part, and the internal thread groove has been seted up to one side of cavity slot broad in chest lumbar vertebrae fuses ware, and the support frame groove has been seted up to one side of support main part, and the side opening has all been seted up at the middle part in the support main part outside, and the support frame mesopore communicates with the side opening each other. The utility model discloses a be equipped with the screw rod, be favorable to screw-thread fit to fix screw rod and internal thread pad, with chest lumbar vertebrae fusion ware and hone lamella fixed, screw-thread fit is more firm, is difficult for droing when implanting the human body. The utility model discloses a be equipped with the support main part, be favorable to improving the stability of the chest lumbar vertebrae segment of postoperative, and be close normal lumbar vertebrae physiological curvature, accord with human normal intervertebral space anatomy shape.

Description

Thoracolumbar fusion cage

Technical Field

The utility model relates to a chest lumbar vertebrae fuses ware technical field, more specifically relates to a chest lumbar vertebrae fuses ware.

Background

With the increase of labor intensity of population in China, the incidence rate of thoracolumbar degenerative diseases and other pathological changes gradually increases, and thoracolumbar spondylolisthesis or instability and other intervertebral disc diseases are caused by the degenerative changes, so that the interbody fusion operation is required _。 The existing low incisura thoracolumbar fusion cage consists of a bone plate, a thoracolumbar fusion cage and fixing nails, wherein the bone plate and the thoracolumbar fusion cage adopt mechanical clamping, and the bone plate and the thoracolumbar are fixed by the fixing nails when implanted into a human body.

The main hone lamella of prior art, chest lumbar vertebrae fuse ware, staple and constitute, wherein hone lamella and chest lumbar vertebrae fuse the ware and adopt mechanical block, and it is fixed with hone lamella and chest lumbar vertebrae through the staple when implanting the human body. Because the low notch design of product, and hone lamella and chest lumbar vertebrae fuse the ware and adopt mechanical block, lead to the product stress point to concentrate on the block point when the human body, lead to product block point to become invalid easily, fuse the ware and deviate from the human body.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above defects of the prior art, the utility model provides a thoracolumbar fusion cage to solve the problems existing in the above background art.

The utility model provides a following technical scheme: the utility model provides a chest lumbar vertebrae fuses ware, fuses the ware including chest lumbar vertebrae, the cavity slot has been seted up at the middle part of chest lumbar vertebrae fuses the ware, the cavity slot that chest lumbar vertebrae fuses the ware is located narrower both sides and all is equipped with the support subject, the support frame mesopore has all been seted up at the middle part of supporting the subject, the internal thread groove has been seted up to one side of cavity slot broad in chest lumbar vertebrae fuses the ware, the support frame groove has been seted up to one side of supporting the subject, the side opening has all been seted up at the middle part in the support subject outside, the support frame mesopore communicates with the side opening each other.

Furthermore, the top end of one side of the thoracolumbar fusion cage, which is positioned in the internal thread groove, is in threaded connection with a bone plate, two ends of the bone plate are arranged into oblate circles, and the middle of the bone plate is provided with a threaded hole.

Furthermore, threaded hole threaded connection has the screw rod, the fixed orifices has all been seted up at the both ends middle part of hone lamella oblate department, the fixed orifices inner wall all is equipped with fixed internal thread, the middle part of hone lamella is to keeping away from chest lumbar vertebrae fusion ware department protrusion.

Furthermore, nail hole fixed slots have all been seted up to the inner wall of fixed orifices, the fixed orifices has the staple through nail hole fixed slot threaded connection, and the staple is located the one side that the hone lamella is close to chest lumbar vertebrae fusion ware.

Furthermore, the projection of the bone plate and the thoracolumbar fusion cage is in a cross shape.

Further, the internal thread groove is fixedly connected with an internal thread pad, a thread pad groove is formed in the middle of the internal thread pad, and the internal thread pad is in threaded connection with the screw rod.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be equipped with the screw rod, be favorable to screw-thread fit to fix screw rod and internal thread pad, with chest lumbar vertebrae fusion ware and hone lamella fixed, screw-thread fit is more firm, is difficult for droing when implanting the human body.

2. The utility model discloses a be equipped with chest lumbar vertebrae and fuse the ware, be favorable to the integration of centrum bone tissue and autogenous bone or allogeneic bone in the ware that fuses, shorten operation time, alleviate the tissue wound.

3. The utility model discloses a be equipped with the support main part, be favorable to improving the stability of the chest lumbar vertebrae festival section of postoperative, and be close normal lumbar vertebrae physiological curvature, accord with human normal intervertebral space anatomy shape.

4. The utility model discloses a be equipped with chest lumbar vertebrae and fuse the ware, be favorable to the postoperative to influence to observe, the postoperative can need not take out, has good biological fusion power.

Drawings

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

Fig. 2 is a schematic view of the top view structure of the thoracolumbar fusion cage of the present invention.

Fig. 3 is a front view of the thoracolumbar fusion cage of the present invention.

Fig. 4 is a schematic structural diagram of the bone plate of the present invention.

Fig. 5 is a top view of the bone plate of the present invention.

Fig. 6 is a schematic view of the fixing nail structure of the present invention.

Fig. 7 is a schematic overall side view of the present invention.

Fig. 8 is a schematic view of the screw structure of the present invention.

Fig. 9 is a schematic view of the structure of the internal thread pad of the present invention.

The reference signs are: 1. a thoracolumbar fusion cage; 101. a support frame slot; 102. a support body; 103. an internal thread groove; 104. a support frame central hole; 105. a side hole; 2. fixing nails; 3. a bone plate; 301. a fixing hole; 302. fixing the internal thread; 303. a threaded hole; 4. a screw; 5. an internal threaded pad; 501. and a thread gasket groove.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention, and in addition, the forms of the structures described in the following embodiments are merely examples, and the thoracolumbar fusion cage of the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person skilled in the art without creative work belong to the scope of the present invention.

Referring to fig. 1-6, the utility model provides a chest lumbar vertebrae fuses ware, fuse ware 1 including chest lumbar vertebrae, the cavity slot has been seted up at the middle part of chest lumbar vertebrae fuses ware 1, the cavity slot position that chest lumbar vertebrae fuses ware 1 all is equipped with support main part 102 in narrower both sides, support frame mesopore 104 has all been seted up at support main part 102's middle part, interior thread groove 103 has been seted up to one side of cavity slot broad in chest lumbar vertebrae fuses ware 1, support frame groove 101 has been seted up to one side of support main part 102, side opening 105 has all been seted up at the middle part in the support main part 102 outside, support frame mesopore 104 and side opening 105 communicate each other.

Referring to fig. 1, the top end of the thoracolumbar fusion cage 1 at one side of the internal thread groove 103 is connected with a bone plate 3 in a thread manner, two ends of the bone plate 3 are oblate, and a threaded hole 303 is formed in the middle of the bone plate 3.

Referring to fig. 7, the threaded hole 303 is connected with the screw rod 4 by a thread, the middle parts of the two ends of the flat circle of the bone plate 3 are both provided with fixing holes 301, the inner walls of the fixing holes 301 are both provided with fixing internal threads 302, and the middle part of the bone plate 3 protrudes to the position far away from the thoracolumbar fusion device 1.

Referring to fig. 1, the inner wall of the fixing hole 301 is provided with a nail hole fixing groove, the fixing hole 301 is connected with a fixing nail 2 through the nail hole fixing groove by screw threads, and the fixing nail 2 is located on one side of the bone plate 3 close to the thoracolumbar fusion cage 1.

Referring to fig. 7, the projection of the bone plate 3 and the thoracolumbar fusion cage 1 is in a cross shape, which is beneficial to observation after operation, and the bone plate can be taken out without operation, thereby having good biological fusion force.

Referring to fig. 7, the internal thread groove 103 is fixedly connected with the internal thread pad 5, the thread pad groove 501 is formed in the middle of the internal thread pad 5, the internal thread pad 5 is in threaded connection with the screw rod 4, the screw rod 4 and the internal thread pad 5 are fixed in threaded fit, the thoracolumbar fusion device 1 and the bone plate 3 are fixed, the threaded fit is more stable, and the thoracolumbar fusion device is not easy to fall off when implanted into a human body.

The utility model discloses a theory of operation: when the device is installed, firstly, the screw rod 4 is unscrewed until the thoracolumbar fusion device 1 and the bone plate 3 are separated, then tissues of a part needing to be fused are removed, then the thoracolumbar fusion device 1 is placed in the fused part, the internal thread pad 5 is placed in the internal thread groove 103, then the bone plate 3 is placed in a cross shape with the projection of the thoracolumbar fusion device 1, at the moment, the fixing nail 2 is aligned with the fixing hole 301 and screwed along the fixing internal thread 302, so that the fixing nail 2 is screwed into the framework of the fused part until the whole body is screwed to be free of shaking and stable and firm, finally, the screw rod 4 is aligned with the thread hole 303, the screw rod penetrates into the internal thread pad 5 and is screwed along the thread pad groove 501 until the fixing nail is not screwed, and finally, the rest space of the fused part is filled with filler, wherein the filler is composed of micropores, the purpose of the device replaces the tissue structure of the intervertebral disc, and the situations of insufficient pressure and instability of the intervertebral disc, slippage or narrow part crack and the like are eliminated.

Thoracolumbar fusion cage 1 is fixed with internal thread pad 5, implants the human body through surgical instruments, later through screw-thread fit in screw rod 4 and internal thread pad 5 with hone lamella 3 fixed with thoracolumbar fusion cage 1, squeeze into the human body through fixed orifices 301 by staple 2 at last and fix to make whole fastening more, be superior to the mechanical block of current product, reduce the risk that the fusion cage deviates from the human body.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a chest lumbar vertebrae fuses ware, includes chest lumbar vertebrae fuses ware (1), its characterized in that: well hollow groove has been seted up at the middle part of chest lumbar vertebrae fusion ware (1), the well hollow groove that chest lumbar vertebrae fusion ware (1) is located narrower both sides and all is equipped with support subject (102), support frame mesopore (104) have all been seted up at the middle part of support subject (102), interior thread groove (103) have been seted up to one side of well hollow groove broad in chest lumbar vertebrae fusion ware (1), support frame groove (101) have been seted up to one side of support subject (102), side hole (105) have all been seted up at the middle part in the support subject (102) outside, intercommunication each other in support frame mesopore (104) and side hole (105).

2. The thoracolumbar fusion cage according to claim 1, wherein: the thoracolumbar fusion cage is characterized in that a bone plate (3) is in threaded connection with the top end of one side of the thoracolumbar fusion cage (1) located in the inner threaded groove (103), two ends of the bone plate (3) are oblate, and a threaded hole (303) is formed in the middle of the bone plate (3).

3. The thoracolumbar fusion cage according to claim 2, wherein: threaded hole (303) threaded connection has screw rod (4), fixed orifices (301) have all been seted up at the both ends middle part of hone lamella (3) oblate department, fixed orifices (301) inner wall all is equipped with fixed internal thread (302), the middle part of hone lamella (3) is to keeping away from chest lumbar vertebrae fusion ware (1) department protrusion.

4. The thoracolumbar fusion cage according to claim 3, wherein: nail hole fixed slots have all been seted up to the inner wall of fixed orifices (301), fixed orifices (301) have staple (2) through nail hole fixed slot threaded connection, and staple (2) are located hone lamella (3) and are close to one side of chest lumbar vertebrae fuse ware (1).

5. The thoracolumbar fusion cage of claim 3, wherein: the projection of the bone plate (3) and the thoracolumbar fusion cage (1) is in a cross shape.

6. The thoracolumbar fusion cage of claim 3, wherein: the inner thread groove (103) is fixedly connected with an inner thread pad (5), the middle part of the inner thread pad (5) is provided with a thread pad groove (501), and the inner thread pad (5) is in threaded connection with the screw rod (4).