CN205286618U - Cervical vertebra interbody fusion cage - Google Patents
Cervical vertebra interbody fusion cage Download PDFInfo
- Publication number
- CN205286618U CN205286618U CN201521130656.1U CN201521130656U CN205286618U CN 205286618 U CN205286618 U CN 205286618U CN 201521130656 U CN201521130656 U CN 201521130656U CN 205286618 U CN205286618 U CN 205286618U
- Authority
- CN
- China
- Prior art keywords
- hole
- device body
- fusion device
- cervical
- fusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Prostheses (AREA)
Abstract
The utility model provides a cervical vertebra interbody fusion cage, is including fusing ware body and fixing device, fusing the ware body and being equipped with the bone grafting cavity that link up upper and lower face, the outline that just fuses ware body front outline is the arch. Fixing device includes preceding way fixed plate and locking screw, preceding way fixed plate and integration ware body are in order can dismantle mode fixed connection, the left end of preceding way fixed plate is equipped with first through -hole, and the both sides of first through -hole are equipped with the second through -hole rather than the diameter is the same. The contained angle that first through -hole, second through -hole and horizontal direction formed is complementary, locking screw and first through -hole, second through -hole clearance fit. The utility model discloses can obtain stronger local biomechanics stability, effective physiological curvature who recovers and keep the cervical vertebra, show improvement integration rate, not only be favorable to early function exercise, provide good condition for keeping of the recovery of neural function and effect at a specified future date in addition, it is especially more obvious with upper segment section surgery effect to two and two.
Description
Technical field
This utility model belongs to technical field of medical instruments, particularly relates to a kind of cervical fusion cage.
Background technology
Cervical spondylotic myelopathy can be divided into anterior approach and posterior approach according to operative approach, and operation method includes various forms of anterior decompression, bone-graft fusion, internal fixation and various different way of escape canalis spinalis expansion, laminoplasty. It is generally believed that for basically identical for the Operative manner of main patient with single segmental and two adjacent sections section prolapse of cervical intervertebral disc, namely select anterior internal fixation fusion or Subtotal vertebrectomy for treatment can obtain good effect. And the selection for multi-segmental (three or more than three) cervical spondylotic myelopathy art formula presently, there are bigger dispute, determine that the key element of operation plan includes: how thoroughly decompression, fusion rate, the postoperative impact on cervical vertebra motor function, the many aspects such as the cost of complication and patient. On overall trend, along with the improvement of the progress of surgical technic, internal fixation device, more tending to adopts anterior approach. Because anterior approach have the prominent advantages that direct decompression, have better long-term efficacy; It addition, this art formula can recover cervical curvature and intervertebral height, reduce axial pain.
Cervical spondylotic myelopathy cause pressure thing most for from spinal cord front, thus implement anterior cervical operation directly to reduce pressure, the stable feature merged is used widely. Only it is packed to intervertebral space, less stable with simple plant bone mass after initial decompression; Once postoperative generation plant bone mass is moved rearwards by, will directly oppress spinal cord, cause nerve injury even threat to life; If shifted forward, esophagus, throat blood vessel and nerve injury can be caused. Further, since there is fine motion between plant bone mass and upper hypocentrum interface, it is easy to cause Fusion failure, pseudoarticulation formation and then impact operative effect at a specified future date; Therefore, occurring to improve surgical effect, reducing above-mentioned complication, optimization is needed in the design for anterior cervical decompression and the operating equipment of Internal fixation technology badly.
Utility model content
The purpose of this utility model is in that for above-mentioned deficiency of the prior art, it is provided that a kind of cervical fusion cage that can adapt to Current therapeutic cervical spondylotic myelopathy technical merit.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of cervical fusion cage, including fusion device body and fixing device; Described fusion device body is provided with through the bone grafting cavity of above and below, and the outline of fusion device body upright projection is domed; Described fixing device includes the fixing plate in front road and lock-screw; The fixing plate in described front road is removably fixing with fusion device body to be connected; The left end of the fixing plate in described front road is provided with the first through hole, and the both sides of the first through hole are provided with second through hole identical with its diameter; The angle that described first through hole, the second through hole and horizontal direction are formed is complementary; Described lock-screw and the first through hole, the second via clearance coordinate.
Further, the right-hand member of described fusion device body is provided with slot, and the fixing plate left end in described front road is provided with inserted sheet, and described inserted sheet coordinates with described slot and level is embedded.
Further, the upper and lower surface of described fusion device body is provided with equally distributed zigzag projection.
Further, the both sides above, bone grafting cavity of described fusion device body are provided with bar-shaped trough.
Further, forward and backward correspondence of described fusion device body offers the bone grafting hole connecting described bone grafting cavity.
The beneficial effects of the utility model are in that: before the cervical fusion cage that the utility model proposes is used in combination on the basis of decompression bone grafting design, plate is fixed on road, stronger local biologic mechanical stability can be obtained, there is efficient recovery and maintain the physiological camber of cervical vertebra, significantly improve fusion rate, not only contribute to early functional exercise, shorten the hospital stays, and the maintenance for the rehabilitation of function of nervous system and long-term effect provides good condition, especially for two and two or more segment surgery effect become apparent from.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model fusion device body.
Fig. 2 is the left view of this utility model fusion device body.
Fig. 3 is the front view of the fixing plate in the front road of this utility model.
Fig. 4 is the right view of the fixing plate in the front road of this utility model.
In figure: 1-fusion device body, 11-bone grafting cavity, 12-bone grafting hole, 13-slot, 14-bar-shaped trough; Plate, 21-the first through hole, 22-the second through hole, 23-inserted sheet are fixed in the front road of 2-.
Detailed description of the invention
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 1 to Fig. 4, the utility model discloses a kind of cervical fusion cage, including fusion device body 1 and fixing device; Described fusion device body 1 is provided with through the bone grafting cavity 11 of above and below, and the outline of fusion device body 1 upright projection is domed; Described fixing device includes the fixing plate 2 in front road and lock-screw; The fixing plate 2 in described front road is removably fixing with fusion device body 1 to be connected; The left end of the fixing plate 2 in described front road is provided with the first through hole 21, and the both sides of the first through hole 21 are provided with second through hole 22 identical with its diameter; Described first through hole the 21, second through hole 22 is complementary with the angle that horizontal direction is formed; Described lock-screw and first through hole the 21, second through hole 22 matched in clearance.
Preferably, the right-hand member of described fusion device body 1 is provided with slot 13, and fixing plate 1 left end in described front road is provided with inserted sheet 23, and described inserted sheet 23 coordinates with described slot 13 and level is embedded. Certainly, the fixing plate 2 in described front road can also be connected either directly through screw with fusion device body 1.
Preferably, the upper and lower surface of described fusion device body 1 is provided with equally distributed zigzag projection.Fusion device body 1 upper and lower surface zigzag anti-skid structure designs, and is conducive to increasing stability.
Preferably, the both sides above, bone grafting cavity 11 of described fusion device body 1 are provided with bar-shaped trough 14; The design of described bar-shaped trough 14 is used for inserting titanium silk, in the implantation process of fusion device, is conducive to being accurately positioned. The left end of described fusion device body 1 can also embed development needle, and being implanted with of development needle is beneficial to clinical follow therapeutic effect.
Preferably, the forward and backward face of described fusion device body 1 is communicated with the bone grafting hole 12 of described bone grafting cavity 11, and the design in described bone grafting hole 12 facilitates the implantation of bone, reduces operation easier.
In order to overcome the deficiency of tradition internal fixation apparatus, fixing to cervical fusion cage 1 and front road plate 2 is mixed and is designed as one by this utility model, and using titanium alloy blade plate as front road fixing plate 2, Invasive lumbar fusion device body 1 material with polyether-ether-ketone (PEEK). The fixing plate in the front road of titanium alloy after implantation embeds among intervertebral space, less than anterior margin of vertebral body surface, it is provided that a firmly screw lock interface.
This programme adopts dynamic to fix, imitate the dynamic compression plate principle of extremity fracture, allow the rotation and the translation that there are certain angle scope between the fixing plate 2 of screw and front road, make to be in close contact between fusion device body 1 and upper hypocentrum interface, immediate postoperative stability is not only provided, and incidence muscle load strength vertically can be made to transmit to fusion device body, and then reduce stress-shielding effect, prevent pseudoarticulation formation.
Here description of the present utility model and application is illustrative, is not wishing to limit in the above-described embodiments scope of the present utility model. It should be appreciated by the person skilled in the art that when without departing from spirit of the present utility model or substitutive characteristics, this utility model can in other forms, structure, layout, ratio, and realize with other assembly, material and parts.
Claims (5)
1. a cervical fusion cage, it is characterised in that: include fusion device body and fixing device; Described fusion device body is provided with through the bone grafting cavity of above and below, and the outline of fusion device body upright projection is domed; Described fixing device includes the fixing plate in front road and lock-screw, and the fixing plate in described front road is removably fixing with fusion device body to be connected; The left end of the fixing plate in described front road is provided with the first through hole, and the both sides of the first through hole are provided with second through hole identical with its diameter; The angle that described first through hole, the second through hole and horizontal direction are formed is complementary; Described lock-screw and the first through hole, the second via clearance coordinate.
2. cervical fusion cage according to claim 1, it is characterised in that: the right-hand member of described fusion device body is provided with slot, and the fixing plate left end in described front road is provided with inserted sheet, and described inserted sheet coordinates with described slot and level is embedded.
3. cervical fusion cage according to claim 1 and 2, it is characterised in that: it is protruding that the upper and lower surface of described fusion device body is provided with equally distributed zigzag.
4. cervical fusion cage according to claim 1 and 2, it is characterised in that: the both sides above, bone grafting cavity of described fusion device body are provided with bar-shaped trough.
5. cervical fusion cage according to claim 1 and 2, it is characterised in that: forward and backward of described fusion device body also correspondence offers the bone grafting hole connecting described bone grafting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130656.1U CN205286618U (en) | 2015-12-30 | 2015-12-30 | Cervical vertebra interbody fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130656.1U CN205286618U (en) | 2015-12-30 | 2015-12-30 | Cervical vertebra interbody fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205286618U true CN205286618U (en) | 2016-06-08 |
Family
ID=56469419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521130656.1U Active CN205286618U (en) | 2015-12-30 | 2015-12-30 | Cervical vertebra interbody fusion cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205286618U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111184565A (en) * | 2020-03-09 | 2020-05-22 | 安徽医科大学附属阜阳医院 | Anterior cervical self-locking fusion device |
| CN111888056A (en) * | 2020-08-05 | 2020-11-06 | 四川大学华西医院 | Vertebral body X-shaped excision decompression vertebral body shaping intervertebral fusion fixator |
| US11259937B2 (en) | 2018-11-09 | 2022-03-01 | Shanghai Chanczheng Hospital | Cervical vertebra fixing plate maintaining natural height, cervical vertebra anterior fixation and fusion system maintaining natural height and method thereof |
| CN117860445A (en) * | 2024-03-11 | 2024-04-12 | 四川大学华西医院 | Anterior cervical internal fixation system |
-
2015
- 2015-12-30 CN CN201521130656.1U patent/CN205286618U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11259937B2 (en) | 2018-11-09 | 2022-03-01 | Shanghai Chanczheng Hospital | Cervical vertebra fixing plate maintaining natural height, cervical vertebra anterior fixation and fusion system maintaining natural height and method thereof |
| CN111184565A (en) * | 2020-03-09 | 2020-05-22 | 安徽医科大学附属阜阳医院 | Anterior cervical self-locking fusion device |
| CN111888056A (en) * | 2020-08-05 | 2020-11-06 | 四川大学华西医院 | Vertebral body X-shaped excision decompression vertebral body shaping intervertebral fusion fixator |
| CN111888056B (en) * | 2020-08-05 | 2022-05-24 | 四川大学华西医院 | X-shaped cutting-off decompression vertebroplasty intervertebral fusion fixator for vertebral body |
| CN117860445A (en) * | 2024-03-11 | 2024-04-12 | 四川大学华西医院 | Anterior cervical internal fixation system |
| CN117860445B (en) * | 2024-03-11 | 2024-05-28 | 四川大学华西医院 | Anterior cervical internal fixation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205286618U (en) | Cervical vertebra interbody fusion cage | |
| CN103610523A (en) | Minimally invasive lateral approach interbody fusion device | |
| CN201040010Y (en) | Full contact type vertebral column titanium netted bone grafting fusion device | |
| US20090099603A1 (en) | Minimally-Invasive Implant for Opening and Enlargement of Processus Spinosus Interspace and Method of Percutaneously Enlarging Processus Spinosus Interspace Therewith | |
| CN202051852U (en) | Highly-simulated customized combined-type artificial spine | |
| CN205007077U (en) | Ware is fused on way before steady type cervical vertebra | |
| CN107822747B (en) | 3D prints pillow neck and fuses fixing device | |
| CN105105889B (en) | A kind of artificial lumbar disc prostheses | |
| CN203662946U (en) | Minimally invasive lateral approach interbody fusion cage | |
| US20130166028A1 (en) | Composite layer intervertebral retrieving device | |
| CN201108492Y (en) | Synarthrosis machine within atlantoaxial | |
| CN105559949A (en) | Self-stabilized interbody fusion cage | |
| CN102166140B (en) | High-simulation customized combined artificial vertebra | |
| CN205339220U (en) | Self stabilization type interbody fusion cage | |
| CN101972179A (en) | Adjustable cervical interbody fusion cage | |
| CN102335051A (en) | Cervical spine locking and fusion device | |
| CN111839835B (en) | Intervertebral fusion fixer for lateral anterior approach vertebral body reconstruction | |
| CN101612056B (en) | Lumbar processus spinosus prop-open device | |
| CN204971720U (en) | It is biological from artifical intervertebral disc system of lock | |
| Zhang et al. | Biomechanical performance of the novel assembled uncovertebral joint fusion cage in single-level anterior cervical discectomy and fusion: a finite element analysis | |
| CN209564264U (en) | A kind of Titanium mesh cage for spinal interbody fusion | |
| CN209091753U (en) | Dynamic and static stabilizer between a kind of spine plate | |
| CN205903313U (en) | Waist interbody fusion cage implants dipstick | |
| CN205434005U (en) | Neck intervertebral disc false body | |
| CN109875668A (en) | Assembly type Thoracolumbar disk Anterior fixation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |