CN211658312U

CN211658312U - Atlantoaxial posterior internal fixation device with fusion device for spinal surgery

Info

Publication number: CN211658312U
Application number: CN201922202927.4U
Authority: CN
Inventors: 陈金水; 潘保顺; 彭鑫; 徐皓; 王菊英
Original assignee: 900th Hospital of the Joint Logistics Support Force of PLA
Current assignee: 900th Hospital of the Joint Logistics Support Force of PLA
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-13
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a spinal column surgery is with taking fusion ware atlas epistaxis way of escape internal fixation device, include with atlas complex atlas posterior arch board, be provided with below the atlas posterior arch board with axis complex axis posterior lateral plate, be provided with on the axis posterior lateral plate and be located the fusion ware that atlas and axis grow of being convenient for between atlas posterior arch and axis spinous process. The utility model discloses simple structure, easy and simple to handle can promote atlas and epistropheus bone grafting to fuse, and the nail point of making simultaneously is easily exposed, and stability is better relatively.

Description

Atlantoaxial posterior internal fixation device with fusion device for spinal surgery

Technical Field

The utility model relates to a spinal surgery is with taking amalgamation ware atlantoaxial way of escape internal fixation device.

Background

The atlantoaxial accounts for more than 50% of the neck rotation movement, so that the stability of the atlantoaxial becomes an important fixed fulcrum. The atlantoaxial posterior bone grafting fusion internal fixation is the most main means for treating atlantoaxial instability. The biomechanical stability and the bone grafting fusion rate of the atlantoaxial posterior internal fixation system are the most main indexes for evaluating the operation prognosis. The atlantoaxial posterior internal fixation system is commonly used as follows: internal fixation of atlas posterior with steel wire or titanium cable, internal fixation of atlas posterior with vertebral plate hook or clamp, internal fixation of atlas posterior with joint screw, and internal fixation of atlas posterior pedicle (lateral mass) with screw rod system or steel plate. In the prior art, the atlantoaxial posterior internal fixation scheme, the atlantoaxial pedicle screw technology is a common scheme for treating atlantoaxial instability, but the operation is difficult to a certain degree, and important structures such as vertebral artery, nerve root and the like are easily damaged. The destruction or loss of bony structures caused by external factors such as anatomical variation, trauma, tumors, etc. may render the single fixation method technically difficult or impractical.

Disclosure of Invention

In view of this, the utility model aims at providing a spinal surgery is with taking fusion ware atlantoaxial way of escape internal fixation device, simple structure, easy and simple to handle can promote the atlas and the integration of epistropheus grafting, and the nail point of making simultaneously is easily exposed, and stability is better relatively.

The technical scheme of the utility model is that: an atlantoaxial posterior fixing device with a fusion device for spinal surgery comprises an atlas posterior arch plate matched with the atlas, an axis posterior lateral plate matched with the axis is arranged below the atlas posterior arch plate, and the upper end of the axis posterior lateral plate is provided with a fusion device which is positioned between the atlas posterior arch and the axis spinous process and is convenient for the growth of the atlas and the axis.

Furthermore, four bilateral symmetrical clasps are arranged on two sides of the atlas posterior arch plate.

Furthermore, two first nail holes which are symmetrical left and right are arranged in the middle of the posterior arch plate of the atlas.

Furthermore, two sides of the axis posterior lateral plate are provided with six bilaterally symmetrical second nail holes.

Further, the second nail holes comprise two bilateral symmetry pedicle screw holes and four bilateral symmetry lamina screw holes.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being simple in structure and simple in operation, having the fusion cage, reducing and planting the bone and falling into the vertebral canal, increase the back fixed stable, can promote the atlas and the integration of epistropheus grafting, when putting the device atlas and epistropheus rear side simultaneously, the in-process system nail point of putting into the operation easily exposes, and stability is better relatively, can reduce the operation time.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic structural diagram 1 of an embodiment of the present invention;

fig. 2 is a schematic structural diagram 2 of an embodiment of the present invention;

FIG. 3 is a schematic view of the embodiment of the present invention illustrating the installation of pedicle screws;

FIG. 4 is a schematic view of the embodiment of the present invention in an installed state using vertebral plate screws;

in the figure: 10-arcus posterior atlantoaxial; 11-clasping hook; 12-a first nail hole; 20-posterior axis posterior lateral plate; 30-a second nail hole; 31-pedicle screw holes; 32-vertebral plate screw holes; 40-a fusion device; 50-a locking screw; 60-pedicle screws; 70-vertebral plate screw.

Detailed Description

As shown in figures 1-4, the atlantoaxial posterior fixation device with the fusion cage for spinal surgery comprises an atlas posterior arch plate 10 matched with the atlas, an axis posterior lateral plate 20 matched with the axis is arranged below the atlas posterior arch plate 10, and a fusion cage 40 which is positioned between the atlas posterior arch and the axis spinous process and facilitates the growth of the atlas and the axis is arranged at the upper end of the axis posterior lateral plate 20. The atlas posterior arch plate 10 and the axis posterior side plate 20 are arranged into an arc-shaped structure to conform to the posterior arch anatomical structures of the atlas and the axis; the fusion cage 40 is disposed between the atlas and the axis, so that the bone grafting fusion area can be enlarged and the fusion rate can be improved.

In this embodiment, four hooks 11 are symmetrically arranged on two sides of the posterior arcus vertebrae 10 of the atlas. The two sides of the arcus posterior atlantoaxial plate 10 can be clamped on the two sides of the atlas through the clasping hook 11, thereby achieving the effect of fixing the clamping position.

In this embodiment, two first nail holes 12 are provided in the middle of the posterior atlas arch plate 10 in bilateral symmetry. The atlas posterior arch plate 10 can be tightly fixed on the atlas rear side by arranging the first nail hole 12 on the atlas posterior arch plate 10.

In this embodiment, six bilaterally symmetrical second nail holes 30 are formed at both sides of the axis posterior plate 20.

In this embodiment, the second nail holes 30 include two bilaterally symmetric pedicle screw holes 31 and four bilaterally symmetric lamina screw holes 32. Two bilateral pedicle screw holes 31 and four bilateral vertebral plate screw holes 32 are formed in the axis posterior lateral plate 20, so that pedicle screws 60 or vertebral plate screws 70 can be selected for fixation according to actual conditions during surgery.

The specific implementation mode is as follows: when the fixing device is implanted into the atlas and the epistropheus rear side operation work is carried out, the internal fixing device is firstly arranged between the atlas and epistropheus spinous process, the fusion device 40 is arranged between the atlas and the epistropheus, the atlas posterior lateral plate 10 and the epistropheus posterior lateral plate 20 are respectively attached to the atlas and the epistropheus rear side, the holding hook 11 is clamped on the two sides of the atlas to form holding fixation, and then the atlas posterior lateral plate 10 is fixed on the atlas by using a locking screw 50 to pass through the first nail hole 12; and then, according to the actual situation of the patient, the vertebral plate screw 70 or the pedicle screw 60 is selected to be implanted for fixing the posterior lateral plate 20 of the epistropheus, so that the posterior atlas plate 10 and the posterior lateral plate of the epistropheus are respectively fixed on the posterior sides of the atlas and the epistropheus to support and fix the atlas and the epistropheus.

Above-mentioned operation flow and software and hardware configuration only do as the preferred embodiment of the utility model discloses a not therefore restrict the patent scope of the utility model, all utilize the utility model discloses the equivalent transform of doing of description and attached drawing content, or directly or indirectly use in relevant technical field, all the same reason is included in the patent protection scope of the utility model.

Claims

1. The utility model provides a spinal surgery is with taking amalgamation ware atlantoaxial way of escape internal fixation device which characterized in that: comprises an atlas posterior arch plate matched with the atlas, an epistropheus posterior lateral plate matched with the epistropheus is arranged below the atlas posterior arch plate, and a fusion device which is positioned between the atlas posterior arch and the epistropheus spinous process and is convenient for the growth of the atlas and the epistropheus is arranged at the upper end of the epistropheus posterior lateral plate.

2. The atlantoaxial posterior internal fixation device with fusion cage for spinal surgery as recited in claim 1, wherein: four bilateral symmetrical clasps are arranged on two sides of the atlas posterior arch plate.

3. The atlantoaxial posterior internal fixation device with fusion cage for spinal surgery as recited in claim 2, wherein: two first nail holes which are symmetrical left and right are arranged in the middle of the posterior arch plate of the atlas.

4. The atlantoaxial posterior internal fixation device with fusion cage for spinal surgery as recited in claim 3, wherein: six second nail holes which are symmetrical left and right are arranged on two sides of the axis posterior lateral plate.

5. The atlantoaxial posterior internal fixation device with fusion cage for spinal surgery as recited in claim 4, wherein: the second nail holes comprise two bilateral symmetry pedicle screw nail holes and four bilateral symmetry vertebral plate screw nail holes.