CN201977917U - Non-fusion elastic rod internal fixing system - Google Patents
Non-fusion elastic rod internal fixing system Download PDFInfo
- Publication number
- CN201977917U CN201977917U CN2010206049663U CN201020604966U CN201977917U CN 201977917 U CN201977917 U CN 201977917U CN 2010206049663 U CN2010206049663 U CN 2010206049663U CN 201020604966 U CN201020604966 U CN 201020604966U CN 201977917 U CN201977917 U CN 201977917U
- Authority
- CN
- China
- Prior art keywords
- screw
- internal fixation
- pitman
- flexible rod
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to the field of medical apparatus and instruments and discloses a non-fusion elastic rod internal fixing system, which comprises a connecting rod and vertebral pedicle bolts, wherein the vertebral pedicle bolts are arranged at two ends of the connecting rod, and the connecting rod is flexibly connected to the vertebral pedicle bolts. Compared with a strong internal fixing device, the non-fusion elastic rod internal fixing system can be used for increasing the fusing efficiency of the vertebral pedicle bones, reducing the transplanting failure rate and preventing dedifferentiation of the tissues close to the operation part and the shifting of bones. The system is used as an internal fixed implant for surgical treatment of the symptoms such as thoracic-lumbar fracture, harm, slipping, scoliosis, and the like, by anterior or posterior approach, and has a function of stress equal distribution, thereby reducing the extra stress generated in operation, reducing the probability of dedifferentiation of the tissues close to the operation part, allowing to replace DISC and creating an excellent condition for partial tissue shifting.
Description
Technical field
This utility model relates to medical instruments field, has related in particular to a kind of non-fusion flexible rod spinal internal fixation system.
Background technology
At present, the present spinal column way of escape inner fixing device of employed spinal fracture clinically, it is a kind of strong spinal column way of escape inner fixing device, at grafting of bone of vertebra or spinal column lumbar vertebra compression fracture, damage, slippage, in the symptom operative treatments such as lateral bending is orthopedic more application is arranged, but because its structure more complicated, it is more loaded down with trivial details to operate, and its less stable, influenced the success rate that operation is implanted, strong device also can cause the unstability of operative site adjacent tissue, may cause the degeneration of operative site adjacent tissue, therefore, be necessary its structure is optimized.
Summary of the invention
This utility model is strong device at spinal column way of escape inner fixing device in the prior art mostly, its structure more complicated, inconvenient operation, less stable, influenced the success rate that operation is implanted, can cause the unstability of operative site adjacent tissue, may cause the shortcoming of the degeneration of operative site adjacent tissue, provide a kind of simple in structure, can prevent the pathological changes of adjacent tissue and moving of fixed position, alleviated extra-stress to the operative site adjacent tissue, reduced regression rate to adjacent tissue, improved the efficient that merges at pedicle of vertebral arch position bone, reduced the mortality of transplanting, assembly and disassembly makes things convenient for and helps adding the non-fusion flexible rod spinal internal fixation system of the growth of bone strengthening.
In order to solve the problems of the technologies described above, this utility model is solved by following technical proposals:
Non-fusion flexible rod spinal internal fixation system, one of them important purposes are exactly the regression of adjacent tissue after preventing to perform the operation, and other purposes prevent to move, and keep balance simultaneously.Result from small the moving of regulator, help adding the growth of bone strengthening, therefore reached the effect that better merges, reduced the mortality of transplanting at pedicle of vertebral arch position bone.Aspect side effect, non-fusion flexible rod spinal internal fixation system has alleviated the extra-stress to adjacent tissue, has reduced the regression rate to adjacent tissue.This system the dismounting also than aspect.
Non-fusion flexible rod spinal internal fixation system comprises pitman and pedicle screw, and pedicle screw is arranged on the two ends of pitman, and pitman and pedicle screw are movably connected.
As preferably, described pitman comprises at least two elasticity pitmans, is provided with cross-connecting apparatus between adjacent two pitmans, and pitman and cross-connecting apparatus are movably connected.
As preferably, described cross-connecting apparatus comprises connecting rod and is arranged on the securing member at connecting rod two ends, securing member comprises transverse slat, the straight plate that links to each other with transverse slat and the bent plate that links to each other with straight plate, and transverse slat is orthogonal with straight plate, and transverse slat, straight plate and bent plate form a slotted eye, slotted eye internal fixation pitman, straight plate is provided with through hole, and connecting rod stretches in the through hole, and this device is made up of titanium alloy, be used to the fusion of fracturing, prevent the pathological changes of adjacent tissue and moving of fixed position.
As preferably, described transverse slat is provided with through hole, and the through-hole wall surface is provided with screw thread, is provided with hold-down nut in the through hole.
As preferably, described pedicle screw comprises adapter sleeve and is arranged on screw in the adapter sleeve, is provided with U type groove in the adapter sleeve, is provided with in the U type groove and is fixed nut, and the inner wall surface of U type groove is provided with screw thread, and pitman stretches in the U type groove.Structural design with gap makes screw to lock securely.U type groove makes has increased the self control ability of 30Nm when being fixed screw.
As preferably, described screw is arranged on the below of adapter sleeve, and adapter sleeve and screw are connected as a single entity.
As preferably, the below of described adapter sleeve is provided with through hole, and the top of screw is stretched in the through hole.
As preferably, the plug screw buttress thread is set on the described screw.
As preferably, the diameter of described screw is 4.5-7.5mm, and the length of screw is 30-55mm.
As preferably, described non-fusion flexible rod spinal internal fixation system also comprises adapter, and adapter plays fixation.
This device is by stable and strong hold-down screw, install at the implant top, the screw designs of top locking improvement, make mechanical strength better when reducing incisura, be easy to implant, reduced volume, has better intensity and toughness, the design of plug screw buttress thread is easy to install, and anti-dial-out power is stronger.When tightening screw, reduce false lock, increased the range of activity of screw.
This utility model is owing to adopted above technical scheme, have significant technique effect: this device supplies in the human body lumbar vertebra compression fracture, damage, slippage, internal fixation implant when symptoms such as lateral bending is orthopedic are made front and back road operative treatment, compare with strong inner fixing device, improved the efficient that merges at pedicle of vertebral arch position bone, reduced the mortality of transplanting, prevent the degeneration variation of operative site adjacent tissue and moving of bone, this device has the function of mean allocation stress, reduced the extra stress that in operation, produces, reduced the probability of adjacent tissue's degeneration simultaneously, and the replacement of permission DISC, in moving, the tissue of part created good environment.
Description of drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is the structural representation of pitman of the present utility model.
Fig. 3 is the structural representation that is fixed nut of the present utility model.
Fig. 4 is the structural representation of the pedicle screw of this utility model embodiment 1.
Fig. 5 is the structural representation of the pedicle screw of this utility model embodiment 2.
Fig. 6 is the structural representation of cross-connecting apparatus of the present utility model.
Fig. 7 is the structural representation of securing member of the present utility model.
Fig. 8 is the right view of Fig. 7.
Fig. 9 is the conversion model structural representation of securing member of the present utility model.
Figure 10 is that pitman of the present utility model and pedicle screw are used state diagram.
Figure 11 is the conversion model structural representation of elasticity pitman of the present utility model.
Figure 12 is the conversion model structural representation of elasticity pitman of the present utility model.
Figure 13 is the conversion model structural representation of pedicle screw of the present utility model.
Figure 14 is the cutaway view of Figure 13.
Figure 15 is the cutaway view of Fig. 4.
Figure 16 is the user mode figure of Fig. 9.
Figure 17 is the structural representation of this utility model adapter.
Figure 18 is the conversion model structural representation of this utility model adapter.
Figure 19 is the conversion model structural representation of this utility model adapter.
The specific embodiment
Below in conjunction with accompanying drawing 1 to Figure 19 and specific embodiment this utility model is described in further detail:
Non-fusion flexible rod spinal internal fixation system comprises pitman 1 and pedicle screw 2, and pedicle screw 2 is arranged on the two ends of pitman 1, and pitman 1 is movably connected with pedicle screw 2.
Pitman 1 comprises at least two elasticity pitmans, is provided with cross-connecting apparatus 3 between adjacent two pitmans 1, and pitman 1 is movably connected with cross-connecting apparatus 3.
Pedicle screw 2 comprises adapter sleeve 21 and the screw 22 that is arranged in the adapter sleeve 21, be provided with U type groove 23 in the adapter sleeve 21, be provided with in the U type groove 23 and be fixed nut 24, the inner wall surface of U type groove 23 is provided with screw thread, and pitman 1 stretches in the U type groove 23.
The plug screw buttress thread is set on the screw 22.
The diameter of screw 22 is 4.5-7.5mm, and the length of screw 22 is 30-55mm.
This device is by stable and strong hold-down screw, install at the implant top, the screw designs of top locking improvement, make mechanical strength better when reducing incisura, be easy to implant, reduced volume, has better intensity and toughness, the design of plug screw buttress thread is easy to install, and anti-dial-out power is stronger.When tightening screw, reduce false lock, increased the range of activity of screw.
This utility model is compared with strong inner fixing device, improved the efficient that merges at pedicle of vertebral arch position bone, reduced the mortality of transplanting, prevent the degeneration variation of operative site adjacent tissue and moving of bone, this device has the function of mean allocation stress, has reduced the extra stress that produces in operation, has reduced the probability of adjacent tissue's degeneration simultaneously, and the replacement of permission DISC, in moving, the tissue of part created good environment.This system of non-fusion flexible rod spinal internal fixation system has reduced the side effect of strong internal fixation system, has toughness and enough intensity is arranged, and can keep balance when partial portion moves, and lateral bending and rotation are extended in the bending of restriction damaged part.
Non-fusion flexible rod spinal internal fixation system comprises pitman 1 and pedicle screw 2, and pedicle screw 2 is arranged on the two ends of pitman 1, and pitman 1 is movably connected with pedicle screw 2.
Pitman 1 comprises at least two elasticity pitmans, is provided with cross-connecting apparatus 3 between adjacent two pitmans 1, and pitman 1 is movably connected with cross-connecting apparatus 3.
Pedicle screw 2 comprises adapter sleeve 21 and the screw 22 that is arranged in the adapter sleeve 21, be provided with U type groove 23 in the adapter sleeve 21, be provided with in the U type groove 23 and be fixed nut 24, the inner wall surface of U type groove 23 is provided with screw thread, and pitman 1 stretches in the U type groove 23.
The below of adapter sleeve 21 is provided with through hole 7, and the top of screw 22 is stretched in the through hole 7.
The plug screw buttress thread is set on the screw 22.
The diameter of screw 22 is 4.5-7.5mm, and the length of screw 22 is 30-55mm.
This device is by stable and strong hold-down screw, install at the implant top, the screw designs of top locking improvement, make mechanical strength better when reducing incisura, be easy to implant, reduced volume, has better intensity and toughness, the design of plug screw buttress thread is easy to install, and anti-dial-out power is stronger.When tightening screw, reduce false lock, increased the range of activity of screw.
This utility model is compared with strong inner fixing device, improved the efficient that merges at pedicle of vertebral arch position bone, reduced the mortality of transplanting, prevent the degeneration variation of operative site adjacent tissue and moving of bone, this device has the function of mean allocation stress, has reduced the extra stress that produces in operation, has reduced the probability of adjacent tissue's degeneration simultaneously, and the replacement of permission DISC, in moving, the tissue of part created good environment.Non-fusion flexible rod spinal internal fixation system is the non-fusion way of escape internal fixation system of foundation elasticity rod with the pedicle of vertebral arch system, and for adult waist and shank treatment of pain aspect, non-fusion flexible rod spinal internal fixation system has proposed new viewpoint.
Non-fusion flexible rod spinal internal fixation system is the device after the innovation, form by titanium alloy, being used for fracture merges, the degeneration that prevents adjacent tissue changes and the moving of bone, the internal fixation implant during for road operative treatment before and after symptoms such as human body lumbar vertebra compression fracture, damage, slippage, lateral bending be orthopedic are done.
Non-fusion flexible rod spinal internal fixation system has been accelerated the fusion of the bone on the pedicle of vertebral arch, compares with common strong fixture, has reduced the mortality of implanting.
In addition, non-fusion flexible rod spinal internal fixation system gets also to have in the function and reduces over-drastic stress, reduces the probability of adjacent tissue's degeneration.
For the waist degeneration, there is a lot of apparatuses to be used for alleviating clinical symptoms and stablizes vertebra.Most is strong device, and such device can cause the instability of adjacent tissue.Non-fusion flexible rod spinal internal fixation system is the stabilising arrangement of flexible rod, is playing the part of crucial role in treatment waist degeneration.
When each position in joint needed to be isolated, moving of one or two merging tissues can be not influential to whole lumbar spine, but the mobile pathological changes that can prevent adjacent tissue of pre-preventing tissue, and the replacement of permission DISC.In moving, the tissue of part created good environment.
In a word, the above only is preferred embodiment of the present utility model, and all equalizations of being done according to this utility model claim change and modify, and all should belong to the covering scope of this utility model patent.
Claims (9)
1. non-fusion flexible rod spinal internal fixation system comprises pitman (1) and pedicle screw (2), and it is characterized in that: described pedicle screw (2) is arranged on the two ends of pitman (1), and pitman (1) is movably connected with pedicle screw (2).
2. non-fusion flexible rod spinal internal fixation system according to claim 1, it is characterized in that: described pitman (1) comprises at least two elasticity pitmans, be provided with cross-connecting apparatus (3) between adjacent two pitmans (1), pitman (1) is movably connected with cross-connecting apparatus (3).
3. non-fusion flexible rod spinal internal fixation system according to claim 2, it is characterized in that: described cross-connecting apparatus (3) comprises connecting rod (4) and is arranged on the securing member (5) at connecting rod (4) two ends, securing member (5) comprises transverse slat (51), straight plate (52) that links to each other with transverse slat (51) and the bent plate (53) that links to each other with straight plate (52), transverse slat (51) is orthogonal with straight plate (52), transverse slat (51), straight plate (52) and bent plate (53) form a slotted eye (54), slotted eye (54) internal fixation pitman (1), straight plate (52) is provided with through hole (6), and connecting rod (4) stretches in the through hole (6).
4. non-fusion flexible rod spinal internal fixation system according to claim 3, it is characterized in that: described transverse slat (51) is provided with through hole (55), and through hole (55) inner wall surface is provided with screw thread, is provided with hold-down nut (56) in the through hole (55).
5. non-fusion flexible rod spinal internal fixation system according to claim 1, it is characterized in that: described pedicle screw (2) comprises adapter sleeve (21) and is arranged on the interior screw (22) of adapter sleeve (21), be provided with U type groove (23) in the adapter sleeve (21), be provided with in the U type groove (23) and be fixed nut (24), the inner wall surface of U type groove (23) is provided with screw thread, and pitman (1) stretches in the U type groove (23).
6. non-fusion flexible rod spinal internal fixation system according to claim 5, it is characterized in that: described screw (22) is arranged on the below of adapter sleeve (21), and adapter sleeve (21) is connected as a single entity with screw (22).
7. non-fusion flexible rod spinal internal fixation system according to claim 5, it is characterized in that: the below of described adapter sleeve (21) is provided with through hole (7), and the top of screw (22) is stretched in the through hole (7).
8. non-fusion flexible rod spinal internal fixation system according to claim 5, it is characterized in that: described screw is provided with the plug screw buttress thread on (22).
9. according to claim 5 or 6 or 7 described non-fusion flexible rod spinal internal fixation systems, it is characterized in that: the diameter of described screw (22) is 4.5-7.5mm, and the length of screw (22) is 30-55mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206049663U CN201977917U (en) | 2010-11-11 | 2010-11-11 | Non-fusion elastic rod internal fixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206049663U CN201977917U (en) | 2010-11-11 | 2010-11-11 | Non-fusion elastic rod internal fixing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201977917U true CN201977917U (en) | 2011-09-21 |
Family
ID=44605389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206049663U Expired - Lifetime CN201977917U (en) | 2010-11-11 | 2010-11-11 | Non-fusion elastic rod internal fixing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201977917U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598909A (en) * | 2013-11-21 | 2014-02-26 | 江苏百得医疗器械有限公司 | Posterior spinal fixation instrument |
| CN103800062A (en) * | 2014-02-27 | 2014-05-21 | 北京积水潭医院 | Surgical correcting device for spine malformation |
| CN105326557A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Fixed pedicle screw system with angle adjusting function |
| CN105326547A (en) * | 2014-08-11 | 2016-02-17 | 天津市康尔医疗器械有限公司 | Universal pedicle screw system |
| CN105361941A (en) * | 2015-12-14 | 2016-03-02 | 中国人民解放军第二军医大学 | Atlas vertebral pedicle hollow universal screw |
| CN106806010A (en) * | 2015-12-02 | 2017-06-09 | 东北大学 | Thoracic and lumbar vertebral posterior fine motion fixed system |
| CN106859756A (en) * | 2017-03-31 | 2017-06-20 | 上海石赫医疗科技有限公司 | Non-fused lumbar vertebrae fixing device |
| CN111728683A (en) * | 2020-07-15 | 2020-10-02 | 四川大学华西医院 | Centrum embedded fixing device |
-
2010
- 2010-11-11 CN CN2010206049663U patent/CN201977917U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598909A (en) * | 2013-11-21 | 2014-02-26 | 江苏百得医疗器械有限公司 | Posterior spinal fixation instrument |
| CN103800062A (en) * | 2014-02-27 | 2014-05-21 | 北京积水潭医院 | Surgical correcting device for spine malformation |
| CN105326557A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Fixed pedicle screw system with angle adjusting function |
| CN105326547A (en) * | 2014-08-11 | 2016-02-17 | 天津市康尔医疗器械有限公司 | Universal pedicle screw system |
| CN106806010A (en) * | 2015-12-02 | 2017-06-09 | 东北大学 | Thoracic and lumbar vertebral posterior fine motion fixed system |
| CN105361941A (en) * | 2015-12-14 | 2016-03-02 | 中国人民解放军第二军医大学 | Atlas vertebral pedicle hollow universal screw |
| CN106859756A (en) * | 2017-03-31 | 2017-06-20 | 上海石赫医疗科技有限公司 | Non-fused lumbar vertebrae fixing device |
| CN111728683A (en) * | 2020-07-15 | 2020-10-02 | 四川大学华西医院 | Centrum embedded fixing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201977917U (en) | Non-fusion elastic rod internal fixing system | |
| US8652174B2 (en) | Expandable interspinous process spacer | |
| CN1798528B (en) | Dynamic fixation device | |
| EP2323574B1 (en) | Interspinous spacer assembly | |
| EP2967582B1 (en) | Pedicle screw with reverse spiral cut | |
| US20070299445A1 (en) | Spine treatment devices and methods | |
| JP2016512098A (en) | Cross brace bilateral spinal rod connector | |
| US9675384B2 (en) | Spinal stabilization system | |
| CN103610523A (en) | Minimally invasive lateral approach interbody fusion device | |
| US20210045780A1 (en) | Bionic artificial spinal joint | |
| CN103190948B (en) | Internal vertebra fixing device | |
| JP2015519170A (en) | Method and apparatus for the treatment of scoliosis | |
| US20110004249A1 (en) | Flexible spinal fixation device and rod thereof | |
| CN203647451U (en) | Stretching type posterior lumbar non-fusion fixing system | |
| CN108577954B (en) | Internal absorbable lumbar vertebra limiting dynamic fixing device | |
| WO2021258546A1 (en) | Assembled cervical vertebra and uncovertebral joint fusion cage | |
| CN204410946U (en) | A kind of elastic vertebra dynamic pedicle screw system | |
| CN204410947U (en) | A kind of can the vertebra dynamic pedicle screw system of fine motion | |
| CN201631368U (en) | Hidden reset pedicle screw with fractured surface | |
| CN104000645B (en) | Dynamic fixing system of posterior spinal | |
| CN209091753U (en) | Dynamic and static stabilizer between a kind of spine plate | |
| CN204600645U (en) | A kind of anterior cervical vertebrae internal fixation steel plate | |
| CN203564323U (en) | Improved vertebral pedicle extending device | |
| CN206729966U (en) | Fixing device between a kind of spinous process | |
| CN219331860U (en) | Growth guiding spinal column orthopedic rod with elastic opening function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SHENTENG KANGCI BIOPHARMACEUTICAL TECHNOL Free format text: FORMER OWNER: ZHOU JIANMING Effective date: 20120202 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310052 HANGZHOU, ZHEJIANG PROVINCE TO: 310053 HANGZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120202 Address after: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 1168 4 floor Patentee after: Zhejiang Shenteng Kangci Bio-Pharmaceutical Technology Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310052 Shangcheng District No. 631 Jiangcheng Road, building 4, room 307, Scarlett Jingyuan Patentee before: Zhou Jianming |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Hangzhou City, Zhejiang province 310053 Shangcheng District No. 631 Jiangcheng Road, building 4, room 307, Scarlett Jingyuan Patentee after: Zhejiang Shenteng Kangci Bio-Pharmaceutical Technology Co.,Ltd. Address before: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 1168 4 floor Patentee before: Zhejiang Shenteng Kangci Bio-Pharmaceutical Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180814 Address after: 324113 No. 20 Huiyuan Road, Shanhai cooperation area, Jiangshan Economic Development Zone, Quzhou, Zhejiang Patentee after: Zhejiang Kangci Medical Technology Co., Ltd. Address before: 310053 307, room 4, Jia Jing Yuan, 631 Jiangcheng Road, Shangcheng District, Hangzhou, Zhejiang. Patentee before: Zhejiang Shenteng Kangci Bio-Pharmaceutical Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |