CN204971722U - Expandable backbone fuses ware - Google Patents
Expandable backbone fuses ware Download PDFInfo
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- CN204971722U CN204971722U CN201520757000.6U CN201520757000U CN204971722U CN 204971722 U CN204971722 U CN 204971722U CN 201520757000 U CN201520757000 U CN 201520757000U CN 204971722 U CN204971722 U CN 204971722U
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Abstract
The utility model discloses an expandable backbone fuses ware, including strutting the bolt and fusing the ware main part, it is semi -closed structure to fuse the ware body, it includes threaded rod and bolt horizontal pole to strut the bolt, for empty nested structure clearance fit between threaded rod and the bolt horizontal pole, the threaded rod passes and fuses the ware main part and stretch out the outside of fusing the ware main part, the bolt horizontal pole is located the inside of fusing the ware main part, the outer ends of threaded rod is equipped with hexagonal hole or plum blossom hole, it fuses ware or cervical vertebra integration ware for pawl shape to fuse the ware body, the regulation end is followed to implanting the inclined plane of end for reducing gradually for the width to the open slot that fuses the ware body, it is T type structure to strut the bolt. The utility model discloses simple structure, convenient to use, just the utility model discloses the inflation of well integration ware body constantly pushes implant the realization of end portion to through strutting the bolt horizontal pole, has avoided formation cavity cantilever structure, and the structure is very stable.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically a kind of inflatable spinal fusion device.
Background technology
Interbody fusion is generally used for the diseases such as treatment spinal column regression and shakiness, can recover intervertebral height, expand intervertebral foramina, support front pillar and increase Fusion levels stability.Late 1970s starts the research of Invasive lumbar fusion device, after be used to treatment lumbar degenerative and change and the disease such as lumbar instability, in Cervical Fusion, obtained significant progress again afterwards.This Therapeutic Method not only can recover the physiology height of intervertebral, maintains normal physiological camber, simultaneously when anterior spinal column stressed maximum strengthen the support of front pillar, make the sections merged obtain enough stability.
But still there are some defects in the treatment in traditional Invasive lumbar fusion device, such as Invasive lumbar fusion device Shortcomings in axial-rotation, with upper hypocentrum in conjunction with time firm not, the initial stage of merging is stable not.For solving above-mentioned situation, there is inflatable threaded fusion cage this year.Chinese utility model patent CN201410058675.1 discloses a kind of inflatable Invasive lumbar fusion device, this fusion device stretches stability after not only increasing, and stability is in a rotational direction also very good, this Invasive lumbar fusion device does not need additional pedicle screw to be fixed simultaneously, to make intervertebral fusion operation Wicresoft.But there is following deficiency in this design:
(1) this design can realize stepping with stepped arc regulating tank to regulate, and such stepping regulates the adjustment that can only realize some certain height, and any expansion that can not reach any height regulates;
(2) internal diameter of the stepped arcuate groove in this design is from implantation termination to the adjustment stepped reduction in termination.Namely rotate when expansion lock retracts to adjustable side by adjusting yoke and could realize strutting of vertebral body opening, whole fusion device front end can be made like this to become the cantilever beam structure of hollow.Can be known by spinal column three post theory, vertebral body is subject to the load of whole spinal column 80%, and such cantilever beam structure is extremely dangerous.
Therefore, need a kind of very stability and the fusion device of arbitrary height can be strutted to meet clinical needs.
Utility model content
The purpose of this utility model is to provide a kind of structure simple, firm stable inflatable spinal fusion device, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme:
A kind of inflatable spinal fusion device, comprise and strut latch and fusion device main body, described fusion device body is semi-closed structure, the described latch that struts comprises threaded rod and latch cross bar, for empty set structure interval coordinates between described threaded rod and latch cross bar, described threaded rod passes fusion device main body and stretches out the outside of fusion device main body, and described latch cross bar is positioned at the inside of fusion device main body, and the outboard end of described threaded rod is provided with hexagon ring or plum blossom hole.
As further program of the utility model: described fusion device body is pawl shape fusion device or cervical vertebral fusion cage.
As further program of the utility model: the open slot of described fusion device body is width is the inclined-plane reduced gradually from adjustment termination to implantation termination.
As this utility model further scheme: described in strut latch be T-type structure.
Compared with prior art, the beneficial effects of the utility model are:
This utility model structure is simple, easy to use, and in this utility model, the expansion of fusion device body is by constantly pushing to implant end head realization by strutting latch cross bar, and avoid and form hollow cantilever beam structure, structure is highly stable.
Accompanying drawing explanation
Fig. 1 is that in this utility model, fusion device main body is the structural representation before pawl shape fusion device expands.
Fig. 2 is that in this utility model, fusion device main body is the structural representation after pawl shape fusion device expands.
Fig. 3 is the structural representation strutting latch in this utility model.
Fig. 4 is one of structural representation when fusion device main body is cervical vertebral fusion cage in this utility model.
Fig. 5 is the structural representation two when fusion device main body is cervical vertebral fusion cage in this utility model.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1-5, a kind of inflatable spinal fusion device, comprise and strut latch 1 and fusion device main body 2, described fusion device body 2 is semi-closed structure, the described latch 1 that struts comprises threaded rod 3 and latch cross bar 4, and for empty set structure interval coordinates between described threaded rod 3 and latch cross bar 4, described threaded rod 3 passes fusion device main body 2 and stretches out the outside of fusion device main body 2, described latch cross bar 4 is positioned at the inside of fusion device main body 2, and the outboard end of described threaded rod 3 is provided with hexagon ring or plum blossom hole.
Described inflatable spinal fusion device in use, extraneous instrument auxiliary under, intervertebral disc can be replaced to implant between two vertebral bodys of spinal column, fusion device body 2 is rotated after implanting, regulate the knob of threaded rod 3 outboard end, constantly will push ahead strutting latch 1, because fusion device body 2 and the contact portion of latch cross bar 4 are inclined-plane, push ahead by latch 1 will be strutted, the forward open end of fusion device body 2 also can continuous distending, can realize the step-less adjustment of opening angle to reach desirable surgical effect.Described fusion device body 2 is pawl shape fusion device or cervical vertebral fusion cage, this fusion device body 2 is semi-closed structures, the open slot of fusion device body 2 is width is the inclined-plane reduced gradually from adjustment termination to implantation termination, this is T-shaped struts the threaded rod 3 of latch 1 and is for empty set structure interval coordinates between latch cross bar 3, prevent latch cross bar 4 from following threaded rod 3 to rotate together, when threaded rod 3 rotates, latch cross bar 4 only can move forward and can not rotate, the end of threaded rod 3 has hexagonal or plum blossom hole, conveniently can coordinate instrumentation.
During concrete use, doctor is by the disc removal of surgical operation by pathological changes, after excision to upper hypocentrum carry out process be polished to lamina surface hemorrhage till, carry out a series of strut and measure after select suitable fusion device to implant, threaded rod 3 is adjusted by specific purpose tool in adjustment termination after implantation, owing to being threaded engagement between threaded rod 3 and fusion device main body 2, threaded rod 3 can produce to implanting moving of end head relative to fusion device main body 2, threaded rod 3 constantly moves forward and also namely struts latch cross bar 4 and constantly move forward, until expand into suitable height thus realize upper hypocentrum combine enough firm, the advantages such as the fusion initial stage is enough stable.
This utility model structure is simple, easy to use, and in this utility model, the expansion of fusion device body 2 is by constantly pushing to implant end head realization by strutting latch cross bar 4, and avoid and form hollow cantilever beam structure, structure is highly stable.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (4)
1. an inflatable spinal fusion device, it is characterized in that, comprise and strut latch (1) and fusion device main body (2), described fusion device body (2) is semi-closed structure, the described latch (1) that struts comprises threaded rod (3) and latch cross bar (4), for empty set structure interval coordinates between described threaded rod (3) and latch cross bar (4), described threaded rod (3) is through fusion device main body (2) and stretch out the outside of fusion device main body (2), described latch cross bar (4) is positioned at the inside of fusion device main body (2), the outboard end of described threaded rod (3) is provided with hexagon ring or plum blossom hole.
2. inflatable spinal fusion device according to claim 1, is characterized in that, described fusion device body (2) is pawl shape fusion device or cervical vertebral fusion cage.
3. inflatable spinal fusion device according to claim 1, is characterized in that, the open slot of described fusion device body (2) is width is the inclined-plane reduced gradually from adjustment termination to implantation termination.
4. inflatable spinal fusion device according to claim 1, is characterized in that, described in strut latch (1) be T-type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520757000.6U CN204971722U (en) | 2015-09-28 | 2015-09-28 | Expandable backbone fuses ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520757000.6U CN204971722U (en) | 2015-09-28 | 2015-09-28 | Expandable backbone fuses ware |
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| CN204971722U true CN204971722U (en) | 2016-01-20 |
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| CN201520757000.6U Active CN204971722U (en) | 2015-09-28 | 2015-09-28 | Expandable backbone fuses ware |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108685628A (en) * | 2018-06-26 | 2018-10-23 | 西安赛隆金属材料有限责任公司 | A kind of Invasive lumbar fusion device and expandable stent preparation method |
| CN109688981A (en) * | 2016-06-28 | 2019-04-26 | Eit 新兴移植技术股份有限公司 | Distensible, adjustable angle intervertebral cage |
| CN110522537A (en) * | 2019-09-06 | 2019-12-03 | 昆明医科大学第一附属医院 | A kind of fixed fusing device of backbone intervertebral |
| CN111329629A (en) * | 2020-03-09 | 2020-06-26 | 中南大学湘雅医院 | Expansion type interbody fusion cage applied to minimally invasive spine surgery |
| US11344424B2 (en) | 2017-06-14 | 2022-05-31 | Medos International Sarl | Expandable intervertebral implant and related methods |
| US11426290B2 (en) | 2015-03-06 | 2022-08-30 | DePuy Synthes Products, Inc. | Expandable intervertebral implant, system, kit and method |
| US11426286B2 (en) | 2020-03-06 | 2022-08-30 | Eit Emerging Implant Technologies Gmbh | Expandable intervertebral implant |
| US11446156B2 (en) | 2018-10-25 | 2022-09-20 | Medos International Sarl | Expandable intervertebral implant, inserter instrument, and related methods |
| US11446155B2 (en) | 2017-05-08 | 2022-09-20 | Medos International Sarl | Expandable cage |
| US11452607B2 (en) | 2010-10-11 | 2022-09-27 | DePuy Synthes Products, Inc. | Expandable interspinous process spacer implant |
| US11596522B2 (en) | 2016-06-28 | 2023-03-07 | Eit Emerging Implant Technologies Gmbh | Expandable and angularly adjustable intervertebral cages with articulating joint |
| US11622868B2 (en) | 2007-06-26 | 2023-04-11 | DePuy Synthes Products, Inc. | Highly lordosed fusion cage |
| US11752009B2 (en) | 2021-04-06 | 2023-09-12 | Medos International Sarl | Expandable intervertebral fusion cage |
| US11850164B2 (en) | 2013-03-07 | 2023-12-26 | DePuy Synthes Products, Inc. | Intervertebral implant |
| US11850160B2 (en) | 2021-03-26 | 2023-12-26 | Medos International Sarl | Expandable lordotic intervertebral fusion cage |
-
2015
- 2015-09-28 CN CN201520757000.6U patent/CN204971722U/en active Active
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11622868B2 (en) | 2007-06-26 | 2023-04-11 | DePuy Synthes Products, Inc. | Highly lordosed fusion cage |
| US11452607B2 (en) | 2010-10-11 | 2022-09-27 | DePuy Synthes Products, Inc. | Expandable interspinous process spacer implant |
| US11850164B2 (en) | 2013-03-07 | 2023-12-26 | DePuy Synthes Products, Inc. | Intervertebral implant |
| US11426290B2 (en) | 2015-03-06 | 2022-08-30 | DePuy Synthes Products, Inc. | Expandable intervertebral implant, system, kit and method |
| CN109688981A (en) * | 2016-06-28 | 2019-04-26 | Eit 新兴移植技术股份有限公司 | Distensible, adjustable angle intervertebral cage |
| US11596523B2 (en) | 2016-06-28 | 2023-03-07 | Eit Emerging Implant Technologies Gmbh | Expandable and angularly adjustable articulating intervertebral cages |
| US11596522B2 (en) | 2016-06-28 | 2023-03-07 | Eit Emerging Implant Technologies Gmbh | Expandable and angularly adjustable intervertebral cages with articulating joint |
| US11510788B2 (en) | 2016-06-28 | 2022-11-29 | Eit Emerging Implant Technologies Gmbh | Expandable, angularly adjustable intervertebral cages |
| US11446155B2 (en) | 2017-05-08 | 2022-09-20 | Medos International Sarl | Expandable cage |
| US11344424B2 (en) | 2017-06-14 | 2022-05-31 | Medos International Sarl | Expandable intervertebral implant and related methods |
| CN108685628A (en) * | 2018-06-26 | 2018-10-23 | 西安赛隆金属材料有限责任公司 | A kind of Invasive lumbar fusion device and expandable stent preparation method |
| CN108685628B (en) * | 2018-06-26 | 2024-01-05 | 西安赛隆金属材料有限责任公司 | Intervertebral fusion device and preparation method of expansion bracket |
| US11446156B2 (en) | 2018-10-25 | 2022-09-20 | Medos International Sarl | Expandable intervertebral implant, inserter instrument, and related methods |
| CN110522537A (en) * | 2019-09-06 | 2019-12-03 | 昆明医科大学第一附属医院 | A kind of fixed fusing device of backbone intervertebral |
| US11426286B2 (en) | 2020-03-06 | 2022-08-30 | Eit Emerging Implant Technologies Gmbh | Expandable intervertebral implant |
| US11806245B2 (en) | 2020-03-06 | 2023-11-07 | Eit Emerging Implant Technologies Gmbh | Expandable intervertebral implant |
| CN111329629B (en) * | 2020-03-09 | 2022-03-01 | 中南大学湘雅医院 | Expansion type interbody fusion cage applied to minimally invasive spine surgery |
| CN111329629A (en) * | 2020-03-09 | 2020-06-26 | 中南大学湘雅医院 | Expansion type interbody fusion cage applied to minimally invasive spine surgery |
| US11850160B2 (en) | 2021-03-26 | 2023-12-26 | Medos International Sarl | Expandable lordotic intervertebral fusion cage |
| US11752009B2 (en) | 2021-04-06 | 2023-09-12 | Medos International Sarl | Expandable intervertebral fusion cage |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |