CN205411402U - Inflation formula interbody fusion cage and interbody fusion cage subassembly - Google Patents
Inflation formula interbody fusion cage and interbody fusion cage subassembly Download PDFInfo
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- CN205411402U CN205411402U CN201521068399.3U CN201521068399U CN205411402U CN 205411402 U CN205411402 U CN 205411402U CN 201521068399 U CN201521068399 U CN 201521068399U CN 205411402 U CN205411402 U CN 205411402U
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- invasive lumbar
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Abstract
The utility model provides an inflation formula interbody fusion cage and integration ware subassembly, the formula that should expand interbody fusion cage includes the implant main part, under the first state, the implant main part is cylindricly, the lateral wall of implant main part is equipped with at least a set of open -end class, and including two at least openings, these at least two split rings wind in every group arranging in the axle center of implant main part, forms a spine form teat in every group between adjacent two openings, under the second state, the outwards outstanding hunch -up of spine form teat of implant main part, the conversion of implant main part through realize first state to second state along axial compression.
Description
Technical field
This utility model relates to Invasive lumbar fusion device field, particularly relates to a kind of expansion type Invasive lumbar fusion device and Invasive lumbar fusion device assembly.
Background technology
For the patient of intervertebral disk retrogression pathological changes, because function of nervous system is obstructed, the therapeutic schemes using fusion vertebral body more.Existing Invasive lumbar fusion device commonly used plane block structure, and at fusion device middle bone grafting hole bone grafting, and its planar structure is unfavorable for the stability of fusion device itself, therefore operation often need to use nail, rod combination to add stiff stability, its bone grafting mode determines and plants Bone mineral change simultaneously, thus it is unfavorable for later stage vertebral fusion, in some instances it may even be possible to false fusion occurs.
Utility model content
The technical problems to be solved in the utility model is how to reduce the volume of Invasive lumbar fusion device, and strengthens its stability.
In order to solve this technical problem, this utility model provides a kind of expansion type Invasive lumbar fusion device, including implant main body, under first state, described implant main body is cylindrical, the sidewall of described implant main body is provided with least one set opening group, often group includes at least two opening, this at least two split ring is arranged around the axle center of described implant main body, a carinate teat is formed between two often adjacent in group openings, under second state, the carinate teat of described implant main body outwardly arches upward, described implant main body realizes the conversion of the first state to the second state by compression vertically.
Optionally, the quantity at least two of described opening group, opening group described at least two groups is along the axial distribution of described implant main body.
Optionally, the quantity at least two of described opening group, the carinate teat dislocation arrangement that two groups of adjacent opening groups are formed.
Optionally, during the second state, the most partly or entirely between the carinate teat outwardly arched upward in group opening group along the angle in the direction around described implant main body axle center be 90 degree.
Optionally, it is provided with anchor portion part inside at least one end, two ends of described implant main body.
Optionally, it is provided with inside one of them end pieces and operates the first attachment structure that handle is connected.
Optionally, described first attachment structure is helicitic texture.
nullThis utility model additionally provides a kind of Invasive lumbar fusion device assembly，The expansion type Invasive lumbar fusion device provided including this utility model，Also include operating handle，Described operation handle includes the second attachment structure、Internal layer pipe fitting、Middle level pipe fitting、Outer layer pipe fitting、Handle main body and pressing mechanism，Described second attachment structure is connected with described expansion type Invasive lumbar fusion device，Described second attachment structure is located at one end of described internal layer pipe fitting，The other end of described internal layer pipe fitting is fixedly connected on one end of described middle level pipe fitting，One end of described outer layer pipe fitting is fixing with handle main body to be connected，Described middle level pipe fitting is positioned at described outer layer arranged at inner side of pipe fitting and extend out to the other end of described outer layer pipe fitting，Described middle level pipe fitting and the most affixed internal layer pipe fitting and the second attachment structure realize flexible relative to described outer layer pipe fitting and handle main body along its length by driving of described pressing mechanism，Described implant main body realizes compression by the flexible pushing tow of described middle level pipe fitting.
Optionally, described pressing mechanism includes pressurized handgrip and pressurised driving structure, described pressurised driving structure is in order to being linear telescopic motion by the translating rotation of described pressurized handgrip, and then it is flexible to drive described middle level pipe fitting to realize, and described pressurised driving structure is positioned at the inner side of described handle main body.
Optionally, described pressurised driving structure includes leading screw, nut and nut seat, described leading screw is affixed with described pressurized handgrip, described nut is installed on inside described handle main body by nut seat, described nut seat is also affixed with described middle level pipe fitting, described nut coupling is connected on described leading screw, and by the rotation of described leading screw realize its along the axial linear motion of described leading screw, and then drive described middle level pipe fitting to realize stretching by the linear motion of self.
This utility model introduces the Invasive lumbar fusion device of expansion type, and by the compression to it, the carinate teat of its implant main body can outwardly arch upward, and after expansion, implant body adds volume, and disc height and vertebral body can be kept stable.Meanwhile, the implant body of the present utility model volume when implanting is little, so the wound caused is the least, before implanting and can be at intervertebral space bone grafting after implanting so that bone grafting is convenient, and bone grafting amount is bigger, can effectively facilitate vertebral fusion.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first state of implant main body in this utility model one embodiment；
Fig. 2 to Fig. 4 is the schematic diagram of the second state of implant main body in this utility model one embodiment；
Fig. 5 is the schematic diagram operating handle in this utility model one embodiment；
Fig. 6 is the close-up schematic view of part A in Fig. 5；
In figure, 1-implant main body；11-opening；The carinate teat of 12-；13-anchor portion part；2-operates handle；21-the second attachment structure；22-internal layer pipe fitting；23-middle level pipe fitting；24-outer layer pipe fitting；25-handle main body；26-pressurized handgrip.
Detailed description of the invention
The expansion type Invasive lumbar fusion device provided this utility model below with reference to Fig. 1 to Fig. 6 is described in detail with Invasive lumbar fusion device assembly, it is this utility model optional embodiment, it is believed that it is modified in the range of this utility model spirit and content and polishes not changing by those skilled in the art.
Refer to Fig. 1 to Fig. 4, this utility model provides a kind of expansion type Invasive lumbar fusion device, including implant main body 1,
Refer to Fig. 1, under first state, described implant main body 1 is cylindrical, the sidewall of described implant main body 1 is provided with least one set opening group, often group includes at least two opening 11, this at least two opening 11 is arranged around the axle center of described implant main body 1, forms a carinate teat 12 between two often adjacent in group openings 11
Refer to Fig. 2 to Fig. 4, under the second state, the carinate teat 12 of described implant main body 1 outwardly arches upward, and described implant main body 1 realizes the conversion of the first state to the second state by compression vertically.
This utility model introduces the Invasive lumbar fusion device of expansion type, and by the compression to it, the carinate teat of its implant main body can outwardly arch upward, and after expansion, implant body adds volume, and disc height and vertebral body can be kept stable.Meanwhile, the implant body of the present utility model volume when implanting is little, so the wound caused is the least, before implanting and can be at intervertebral space bone grafting after implanting so that bone grafting is convenient, and bone grafting amount is bigger, can effectively facilitate vertebral fusion.
In this utility model optional embodiment, the quantity at least two of described opening group, opening group described at least two groups is along the axial distribution of described implant main body, it is possible to be interpreted as that the length direction along implant main body is arranged.And, the quantity of different group openings can be identical, it is also possible to is different.
Furthermore, it is understood that the carinate teat 12 dislocation arrangement that adjacent two groups of opening groups are formed.So, arranged by dislocation, form angle, can beneficially support and maintain height, prevent from subsiding, additionally it is possible to play effects such as preventing rotation and slip.
In an alternate embodiment of the invention, during the second state, the most partly or entirely between the carinate teat outwardly arched upward in group opening group along the angle in the direction around described implant main body axle center be 90 degree, in this role, often the quantity of the carinate teat that group opening group is formed is four, to form orthogonal carinate teat, it is more beneficial for preventing from rotating, it is ensured that it will not slide.
In this utility model optional embodiment, inside at least one end, two ends of described implant main body 1, it is provided with anchor portion part 13.It can be conducive to the control of compressed configuration, it is ensured that carinate teat 12 is by compression projection, and other parts are not compressed projection.In further alternative embodiment, it is provided with inside one of them anchor portion part 13 and operates the first attachment structure (not shown) that handle is connected.Furthermore, it is understood that described first attachment structure is helicitic texture.It screws with the helicitic texture coupling that operation handle is mentioned below after being connected, can be by the flexible compression promoting implant main body 1 of middle level pipe fitting.
nullRefer to Fig. 5 and Fig. 6，This utility model additionally provides a kind of Invasive lumbar fusion device assembly，The expansion type Invasive lumbar fusion device provided including the most various alternative embodiments，Also include operating handle 2，Described operation handle 2 includes the second attachment structure 26、Internal layer pipe fitting 25、Middle level pipe fitting 24、Outer layer pipe fitting 23、Handle main body 22 and pressing mechanism，Described second attachment structure 26 is connected with described expansion type Invasive lumbar fusion device，Specifically，Screw with the first attachment structure and be connected，Described second attachment structure 26 is located at one end of described internal layer pipe fitting 25，The other end of described internal layer pipe fitting 25 is fixedly connected on one end of described middle level pipe fitting 24，One end of described outer layer pipe fitting 23 is fixing with handle main body 22 to be connected，Described middle level pipe fitting 24 is positioned at inside described outer layer pipe fitting 23 and extend out to the other end of described outer layer pipe fitting 23，The outer layer pipe fitting 23 of described middle level pipe fitting 24 and connection fixed thereto and the second attachment structure 26 realize flexible relative to described outer layer pipe fitting 23 and handle main body 22 along its length by driving of described pressing mechanism，Described implant main body 1 realizes compression by the flexible pushing tow of described middle level pipe fitting 24.
In this utility model optional embodiment, in order to realize the internal layer pipe fitting 25 of middle level pipe fitting 24 and connection fixed thereto and the flexible of the second attachment structure 26, described pressing mechanism includes pressurized handgrip 21 and pressurised driving structure (not shown), described pressurised driving structure in order to by the translating rotation of described pressurized handgrip be linear telescopic motion, and then it is flexible to drive described middle level pipe fitting 24 to realize, described pressurised driving structure is positioned at the inner side of described handle main body 22.
A lot of by having in mode field that convert rotational motion is linear motion, be given with alternative with next alternative embodiment, to show what this utility model and above alternative thereof were that by, but protection domain of the present utility model is not restricted to this, described pressurised driving structure includes leading screw, nut and nut seat, described leading screw is affixed with described pressurized handgrip, described nut is installed on inside described handle main body by nut seat, described nut seat is also affixed with described middle level pipe fitting, described nut coupling is connected on described leading screw, and realize it along the axial linear motion of described leading screw by the rotation of described leading screw, and then it is flexible to drive described middle level pipe fitting to realize by the linear motion of self.It is relatively conventional lead screw assembly, by above description, would not cause ambiguity and unclear.
When using this utility model, rotary presser handle 21 is so that implant body 1 is expansion-molded, and along with stretching out of middle level pipe fitting 24, outer layer pipe fitting 25, as protection sleeve pipe, can retreat, relatively to ensure the expansion of implant body 1 in expansion process.
It should further be noted that, in this utility model any embodiment, the shape of the carinate teat 12 on one implant body 1 can be different, its concrete shape is not specifically limited by this utility model, as long as utilize opening to form carinate teat 12, it it is exactly the optional scheme of this utility model, simultaneously, carinate teat 12 is when the first state, pre-protruding form can also be designed to, such as outwards slightly arch upward, to be conducive to the expansion after implanting, so, alleged by the present invention, described implant main body 1 is cylindrical, open understanding should be done, the simply description to its configuration, but specific in details, carinate protuberance 12 can have fluctuating camber line, can be with the most smooth non-form.
By rotary presser handle 21, internal layer pipe fitting 25 makes implant body 1 can support according to the carinate teat 12 of spinal column teat 12. vertical direction of the different convex shape of geometry generation and maintain vertebral height, prevents collapse of vertebra.Wherein, the carinate teat 12 misplaced in other words of the orthorhombic form formed is possible to prevent the rotation of implant body 1, it is ensured that vertebral body will not horizontally slip.All of carinate teat 12 can effectively prevent vertebral body slide anteroposterior.
In sum, this utility model and optional embodiment thereof possess following positive technique effect:
1, operation wound is less, by reducing the volume of Invasive lumbar fusion device itself, thus reduces surgical wound, utilizes the implant body 1 of small-diameter circular tubulose to enter intervertebral space, carries out mechanical deformation, thus play the purpose supporting vertebral body between vertebral body.
2, operation is simpler, expense is lower, traditional operation needs after implanting fusion device, by using nail, rod combination to strengthen the stability of vertebral body in pedicle of vertebral arch, and the irregularly shaped stability that ensure that hypocentrum after the expansion of expansion type Invasive lumbar fusion device, save the operating time implanted needed for nail, rod combination, reduce surgery cost simultaneously.
3, vertebral fusion rate is higher: the structure of expansion type fusion device allow doctor before fusion device deformation and after deformation between vertebral body open bone grafting, considerably increase bone grafting amount, beneficially vertebral fusion.
Claims (9)
1. an expansion type Invasive lumbar fusion device, it is characterized in that: include implant main body, under first state, described implant main body is cylindrical, the sidewall of described implant main body is provided with least one set opening group, often group includes at least two opening, this at least two split ring is arranged around the axle center of described implant main body, a carinate teat is formed between two often adjacent in group openings, under second state, the carinate teat of described implant main body outwardly arches upward, described implant main body realizes the conversion of the first state to the second state by compression vertically, the quantity at least two of described opening group, the carinate teat dislocation arrangement that two groups of adjacent opening groups are formed.
2. expansion type Invasive lumbar fusion device as claimed in claim 1, it is characterised in that: the quantity at least two of described opening group, opening group described at least two groups is along the axial distribution of described implant main body.
3. expansion type Invasive lumbar fusion device as claimed in claim 1, it is characterised in that: during the second state, the most partly or entirely between the carinate teat outwardly arched upward in group opening group, angle along the direction around described implant main body axle center is 90 degree.
4. expansion type Invasive lumbar fusion device as claimed in claim 1, it is characterised in that: it is provided with anchor portion part inside at least one end, two ends of described implant main body.
5. expansion type Invasive lumbar fusion device as claimed in claim 4, it is characterised in that: it is provided with inside one of them end pieces and operates the first attachment structure that handle is connected.
6. expansion type Invasive lumbar fusion device as claimed in claim 5, it is characterised in that: described first attachment structure is helicitic texture.
null7. an Invasive lumbar fusion device assembly，It is characterized in that: include claim 1 to 6 one of arbitrarily as described in expansion type Invasive lumbar fusion device，Also include operating handle，Described operation handle includes the second attachment structure、Internal layer pipe fitting、Middle level pipe fitting、Outer layer pipe fitting、Handle main body and pressing mechanism，Described second attachment structure is connected with described expansion type Invasive lumbar fusion device，Described second attachment structure is located at one end of described internal layer pipe fitting，The other end of described internal layer pipe fitting is fixedly connected on one end of described middle level pipe fitting，One end of described outer layer pipe fitting is fixing with handle main body to be connected，Described middle level pipe fitting is positioned at described outer layer arranged at inner side of pipe fitting and extend out to the other end of described outer layer pipe fitting，Described middle level pipe fitting and the most affixed internal layer pipe fitting and the second attachment structure realize flexible relative to described outer layer pipe fitting and handle main body along its length by driving of described pressing mechanism，Described implant main body realizes compression by the flexible pushing tow of described middle level pipe fitting.
8. Invasive lumbar fusion device assembly as claimed in claim 7, it is characterized in that: described pressing mechanism includes pressurized handgrip and pressurised driving structure, described pressurised driving structure in order to by the translating rotation of described pressurized handgrip be linear telescopic motion, and then it is flexible to drive described middle level pipe fitting to realize, described pressurised driving structure is positioned at the inner side of described handle main body.
9. Invasive lumbar fusion device assembly as claimed in claim 8, it is characterized in that: described pressurised driving structure includes leading screw, nut and nut seat, described leading screw is affixed with described pressurized handgrip, described nut is installed on inside described handle main body by nut seat, described nut seat is also affixed with described middle level pipe fitting, described nut coupling is connected on described leading screw, and by the rotation of described leading screw realize its along the axial linear motion of described leading screw, and then it is flexible to drive described middle level pipe fitting to realize by the linear motion of self.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068399.3U CN205411402U (en) | 2015-12-18 | 2015-12-18 | Inflation formula interbody fusion cage and interbody fusion cage subassembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068399.3U CN205411402U (en) | 2015-12-18 | 2015-12-18 | Inflation formula interbody fusion cage and interbody fusion cage subassembly |
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| CN205411402U true CN205411402U (en) | 2016-08-03 |
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| CN201521068399.3U Active CN205411402U (en) | 2015-12-18 | 2015-12-18 | Inflation formula interbody fusion cage and interbody fusion cage subassembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113781A (en) * | 2017-12-12 | 2018-06-05 | 广州爱锘德医疗器械有限公司 | Adjustable for height threaded fusion cage |
| CN108113782A (en) * | 2017-12-12 | 2018-06-05 | 中以医疗技术发展有限公司 | Threaded fusion cage |
| WO2022057505A1 (en) * | 2020-09-17 | 2022-03-24 | 山东冠龙医疗用品有限公司 | Vertebral-body spreading and filling apparatus and pushing device |
-
2015
- 2015-12-18 CN CN201521068399.3U patent/CN205411402U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113781A (en) * | 2017-12-12 | 2018-06-05 | 广州爱锘德医疗器械有限公司 | Adjustable for height threaded fusion cage |
| CN108113782A (en) * | 2017-12-12 | 2018-06-05 | 中以医疗技术发展有限公司 | Threaded fusion cage |
| WO2019114345A1 (en) * | 2017-12-12 | 2019-06-20 | 广州爱锘德医疗器械有限公司 | Height-adjustable vertebral fusion cage |
| CN108113781B (en) * | 2017-12-12 | 2019-11-26 | 广州爱锘德医疗器械有限公司 | Height-adjustable threaded fusion cage |
| WO2022057505A1 (en) * | 2020-09-17 | 2022-03-24 | 山东冠龙医疗用品有限公司 | Vertebral-body spreading and filling apparatus and pushing device |
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