CN211409544U - Degradable cervical vertebra fusion cage - Google Patents
Degradable cervical vertebra fusion cage Download PDFInfo
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- CN211409544U CN211409544U CN201922480323.6U CN201922480323U CN211409544U CN 211409544 U CN211409544 U CN 211409544U CN 201922480323 U CN201922480323 U CN 201922480323U CN 211409544 U CN211409544 U CN 211409544U
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Abstract
The utility model discloses a degradable cervical vertebra fuses ware belongs to medical instrument technical field, fuse the ware including first fusion ware and second, the second fuses the ware and is located the top of first fusion ware, and a plurality of fastening holes have all been seted up to the front side that first fusion ware and second fused the ware, and it has fastening screw to run through in the fastening hole, has all seted up the right storehouse of packing on first fusion ware and the second fusion ware, and the left side of packing the storehouse in the right side has seted up left and has filled the storehouse, and the upper and lower horizontal plane that first fusion ware and second fused the ware is provided with the gradient of physiological bending angle and has outstanding texture on the surface. The utility model discloses an ion that uses degradable magnesium and magnesium alloy to release under the body fluid environment is absorbed by the human body gradually, along with the degradation process carry on its mechanical properties progressively reduce, has good biocompatibility and osteoinduction with new bone to reach and avoided the permanent internal puzzlement of remaining of fusion ware and the purpose that the secondary operation took out the fusion ware.
Description
Technical Field
The utility model relates to a cervical vertebra fusion cage, in particular to a degradable cervical vertebra fusion cage, which belongs to the technical field of medical instruments.
Background
The cervical vertebra fusion cage has been widely applied to the surgical treatment of cervical degenerative diseases, wounds and the like, and has the main functions of keeping the height of intervertebral space and promoting the bony fusion of the intervertebral space. At present, cervical vertebra fusion cages made of titanium alloy, polyaryletherketone, carbon fiber and other materials are mainly used clinically. However, this kind of fusion cage has several disadvantages: the pressure is caused to the esophagus, the accessory muscles and tissues, so that the patient has foreign body feeling and uncomfortable feeling; the pain caused by permanent retention or secondary operation taking out is increased, and the physiological and economic burden of the patient is increased; the high elastic modulus forms stress shielding in front of the intervertebral space, which is not beneficial to effective bone fusion.
SUMMERY OF THE UTILITY MODEL
The main objective of the utility model is to provide a degradable cervical vertebra fusion cage, the ion that releases under the body fluid environment through using degradable magnesium and magnesium alloy is absorbed by the human body gradually, along with its mechanical properties of carrying on of degradation process progressively reduces, has good biocompatibility and osteoinduction with the new bone to reach the purpose of having avoided fusion cage permanent retention internal puzzlement and secondary operation to take out fusion cage.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the degradable cervical vertebra fusion cage comprises a first fusion cage and a second fusion cage, wherein the second fusion cage is located above the first fusion cage, a plurality of fastening holes are formed in the front sides of the first fusion cage and the second fusion cage respectively, fastening screws penetrate through the fastening holes, a right filling bin is formed in the first fusion cage and the second fusion cage respectively, a left filling bin is formed in the left side of the right filling bin, and the upper horizontal plane and the lower horizontal plane of the first fusion cage and the second fusion cage are provided with gradients of physiological bending angles and have prominent textures on the surfaces.
Preferably, the first fusion cage and the second fusion cage are two groups of cervical interbody fusion cages with the same size, and all the components are used in a matched manner.
Preferably, the fastening hole is internally provided with an internal thread matched with the fastening screw, and the fastening hole penetrates through the first fusion device and the second fusion device in an obliquely outward direction.
Preferably, the first fusion cage is a stainless steel or titanium alloy cervical vertebra fusion cage, and the second fusion cage is a magnesium or magnesium alloy cervical vertebra fusion cage.
Preferably, the front end of the fastening screw is provided with a taper, and the fastening screw is a magnesium or magnesium alloy fastening screw.
Preferably, the right filling bin and the left filling bin are filling cavities with certain strength.
Preferably, the outer sides of the first and second fusion containers are each formed by a smoothly curved surface.
The utility model has the advantages of: according to the utility model, the degradable cervical vertebra fusion cage can be degraded after being implanted into the body, the degradation speed and the mechanical property can be adjusted through the shape design, the mechanical property during the service period can be ensured, the complete biological bone healing between the centrums can be realized, the magnesium ions released by degradation are ions contained in the human body, can be absorbed or metabolized, the surrounding bone formation can be promoted, and the healing period of the fracture is accelerated; magnesium is a metal with medium and high strength, low modulus, good biocompatibility in vivo and osteogenesis induction. Degradable magnesium and magnesium alloy cervical interbody fusion cage compare stainless steel or titanium alloy material cervical interbody fusion cage, and the material self tapping is poor, the utility model provides a stainless steel or titanium alloy material interbody fusion cage has avoided directly implanting degradable interbody fusion cage to the destruction of main part and screw as the instrument of implanting degradable interbody fusion cage, is of value to going on smoothly of operation.
Drawings
FIG. 1 is a front view of an overall structure of a preferred embodiment of a degradable cervical fusion cage according to the present invention;
fig. 2 is a plan view of the overall structure of a preferred embodiment of the degradable cervical fusion cage according to the present invention.
In the figure: 1-first fusion device, 2-second fusion device, 3-fastening screw, 4-right filling cavity, 5-left filling cavity and 6-fastening hole.
Detailed Description
In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-2, the degradable cervical fusion cage provided by the present embodiment includes a first cage 1 and a second cage 2, and the second cage 2 is located above the first cage 1. The front sides of the first fusion device 1 and the second fusion device 2 are respectively provided with a plurality of fastening holes 6, and fastening screws 3 penetrate through the fastening holes 6. The first fusion device 1 and the second fusion device 2 are both provided with a right filling bin 4, the left side of the right filling bin 4 is provided with a left filling bin 5, the upper horizontal plane and the lower horizontal plane of the first fusion device 1 and the second fusion device 2 are provided with gradients of physiological bending angles, and the surfaces of the gradients and the second fusion device are provided with protruding textures. Ions released by the degradable magnesium and the magnesium alloy in a body fluid environment are gradually absorbed by a human body, the mechanical properties of the degradable magnesium and the magnesium alloy are gradually reduced along with the degradation process, and the degradable magnesium and the magnesium alloy have good biocompatibility and osteoinductivity with new bones, so that the trouble that the fusion cage is permanently retained in the body and the fusion cage is taken out in a secondary operation can be avoided.
In this embodiment, as shown in fig. 1, the first fusion cage 1 and the second fusion cage 2 are two groups of cervical interbody fusion cages having the same size, and the two groups of fusion cages are used in cooperation with each other.
In the present embodiment, as shown in fig. 1, an internal thread is provided inside the fastening hole 6 to be engaged with the fastening screw 3, and the fastening hole 6 penetrates the first cage 1 and the second cage 2 obliquely outward.
In this embodiment, as shown in fig. 1, the first fusion cage 1 is a stainless steel or titanium alloy cervical fusion cage, and the second fusion cage 2 is a magnesium or magnesium alloy cervical fusion cage. The degradable magnesium and magnesium alloy cervical interbody fusion cage can be degraded after being implanted into a body, and the magnesium ions released by degradation are ions contained in the human body, can be absorbed or metabolized, can promote the surrounding bone formation, and quickens the healing period of fracture.
In the present embodiment, as shown in fig. 1, the front end of the fastening screw 3 is tapered, and the fastening screw 3 is a magnesium or magnesium alloy fastening screw.
In the present embodiment, as shown in fig. 2, the right filling chamber 4 and the left filling chamber 5 are filling cavities with certain strength. The degradation speed and the mechanical property of the fusion cage are adjusted through the shape design, so that the mechanical property of the fusion cage during service can be ensured, and complete biological bone healing between the vertebral bodies can be realized.
In the present embodiment, as shown in fig. 2, the outer sides of the first fusion cage 1 and the second fusion cage 2 are each constituted by a smoothly curved surface.
A use method of the degradable cervical vertebra fusion cage comprises the following steps:
step 1: implanting the main body component of the first fusion device 1 or the second fusion device 2 into the vertebral body, punching, and screwing in a matched fastening screw 3;
step 2: after the screw hole is punched, the fixing screw and the main body component are taken down;
and step 3: implanting the main body components of the fusion cage with the same size into the same position of the intervertebral, probing the position of the drilled hole, and slightly screwing the matched fastening screw 3 to complete the fixation of the cervical fusion cage.
In summary, in the present embodiment, according to the degradable cervical fusion cage of the present embodiment, the degradable magnesium and magnesium alloy cervical fusion cage provided by the present embodiment can be degraded after being implanted into the body, and the degradation speed and mechanical properties of the degradable magnesium and magnesium alloy cervical fusion cage can be adjusted through the shape design, so that the mechanical properties of the degradable magnesium and magnesium alloy cervical fusion cage during service can be ensured, and complete biological bone healing between vertebrae can be realized. The magnesium ions released by degradation are ions contained in the human body, can be absorbed or metabolized, can promote the surrounding bone formation, and accelerate the healing period of the fracture. Magnesium is a metal with medium and high strength, low modulus, good biocompatibility in vivo and osteogenesis induction. Degradable magnesium and magnesium alloy cervical interbody fusion cage compare stainless steel or titanium alloy material cervical interbody fusion cage, and the material self tapping is poor, the utility model provides a stainless steel or titanium alloy material interbody fusion cage has avoided directly implanting degradable interbody fusion cage to the destruction of main part and screw as the instrument of implanting degradable interbody fusion cage, is of value to going on smoothly of operation.
The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.
Claims (7)
1. The degradable cervical vertebra fusion cage is characterized by comprising a first fusion cage (1) and a second fusion cage (2), wherein the second fusion cage (2) is located above the first fusion cage (1), a plurality of fastening holes (6) are formed in the front side of the first fusion cage (1) and the front side of the second fusion cage (2), fastening screws (3) penetrate through the fastening holes (6), a right filling bin (4) is formed in the first fusion cage (1) and the second fusion cage (2), a left filling bin (5) is formed in the left side of the right filling bin (4), and the upper horizontal plane and the lower horizontal plane of the first fusion cage (1) and the second fusion cage (2) are provided with gradients of physiological bending angles, and the surfaces of the gradients and the surfaces of the physiological bending angles have prominent textures.
2. The degradable cervical fusion cage according to claim 1, wherein the first fusion cage (1) and the second fusion cage (2) are two sets of cervical fusion cages with the same size, and the components are used in cooperation with each other.
3. The degradable cervical fusion cage according to claim 1, wherein the fastening hole (6) is internally provided with an internal thread to be matched with the fastening screw (3), and the fastening hole (6) penetrates the first fusion cage (1) and the second fusion cage (2) obliquely and outwards.
4. The degradable cervical fusion cage according to claim 1, wherein the first fusion cage (1) is a stainless steel or titanium alloy cervical fusion cage, and the second fusion cage (2) is a magnesium or magnesium alloy cervical fusion cage.
5. The degradable cervical fusion cage according to claim 1, wherein the front end of the fastening screw (3) is tapered, and the fastening screw (3) is a magnesium or magnesium alloy fastening screw.
6. The degradable cervical fusion cage according to claim 1, wherein the right filling chamber (4) and the left filling chamber (5) are filling cavities with certain strength.
7. The degradable cervical fusion cage according to claim 1, wherein the outer sides of the first fusion cage (1) and the second fusion cage (2) are each formed of a rounded curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480323.6U CN211409544U (en) | 2019-12-31 | 2019-12-31 | Degradable cervical vertebra fusion cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480323.6U CN211409544U (en) | 2019-12-31 | 2019-12-31 | Degradable cervical vertebra fusion cage |
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| CN211409544U true CN211409544U (en) | 2020-09-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111067672A (en) * | 2019-12-31 | 2020-04-28 | 江苏澳格姆生物科技有限公司 | Degradable cervical vertebra fusion cage and implantation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111067672A (en) * | 2019-12-31 | 2020-04-28 | 江苏澳格姆生物科技有限公司 | Degradable cervical vertebra fusion cage and implantation method thereof |
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Effective date of registration: 20200901 Address after: 1 / F, building 2, No. 8, Jinfeng Road, high tech Zone, Suzhou, Jiangsu Province, 215000 Patentee after: Wenke medical technology (Suzhou) Co., Ltd Address before: 210000, No. 6, Changjiang back street, Xuanwu District, Jiangsu, Nanjing Patentee before: JIANGSU AOGEMU BIOLOGICAL TECHNOLOGY Co.,Ltd. |