CN106691636A - Interbody fusion cage - Google Patents
Interbody fusion cage Download PDFInfo
- Publication number
- CN106691636A CN106691636A CN201510415730.2A CN201510415730A CN106691636A CN 106691636 A CN106691636 A CN 106691636A CN 201510415730 A CN201510415730 A CN 201510415730A CN 106691636 A CN106691636 A CN 106691636A
- Authority
- CN
- China
- Prior art keywords
- screw
- fusion device
- fusion cage
- lumbar fusion
- screw hole
- 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.)
- Pending
Links
Abstract
The invention relates to an interbody fusion cage, which comprises a fusion cage main body and a screw, wherein screw holes are formed in the front sidewall of the fusion cage main body; the screw can be inserted into the screw holes; and the interbody fusion cage is characterized in that a memory alloy metal wire is arranged in the front side of each screw hole. According to the interbody fusion cage provided by the invention, with the application of the memory alloy metal wires, the screw can be effectively prevented from sliding out of the fusion cage, without influence to the insertion of the screw, and location of the fusion cage in an intervertebral disc can be guaranteed, so that the placing stability of the interbody fusion cage is enhanced.
Description
Technical field
The present invention relates to a kind of Invasive lumbar fusion device, belong to spinal surgery technical field of medical instruments.
Background technology
Invasive lumbar fusion device is widely used in spinal fusion surgery at present, and its placement location and stability are weighed very much
Will, reason is that the space between upper and lower two interverbebral discs is smaller, and such as placement location changes after surgery, can influence
To the effect of intervertebral fusion, it is also possible to encounter nerve, pain is produced.
Some Invasive lumbar fusion devices employ the design of fixed nail, and several screw holes, art are designed in the front side of fusion device
Middle implantation fixing screws so that fusion device can be fixed on certain ad-hoc location of interverbebral disc, for example
Invasive lumbar fusion device disclosed in CN103393487A.However, such design also brings a problem, it is fixed
Nail is easier to be skidded off from fusion device, so as to not reach fixed effect, it is impossible to Invasive lumbar fusion device is effectively ensured
Stability.
Some fusion devices then employ the design of baffle plate, in the additional baffle plate of screw hole, to prevent fixed nail past
The possibility of outer movement.Such method can actually prevent the loosening of fixed nail, however it is necessary that remanufacturing a gear
Plate, increases production cost, so as to aggravate the burden of patient.In addition, locking is also required between baffle plate and fusion device,
If this locking mechanism loosens, overall loosening can be equally caused so that fixed nail is slipped, and still cannot
The stability of Invasive lumbar fusion device is effectively ensured.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, the present invention to provide a kind of vertebra with low cost, simple and easy to apply
Between fusion device, it is effectively solved in current Invasive lumbar fusion device, and fixed nail is easily slipped, fixed effect is bad,
Relatively costly technical problem.
In order to realize foregoing invention purpose, present invention employs following technical proposals：A kind of Invasive lumbar fusion device, bag
Fusion device body and screw are included, screw hole are set in the front side wall of fusion device body, screw can be inserted into screw hole,
Characterized in that, installing a memory alloy metal wire in the front of each screw hole.
Preferably, the memory alloy metal wire is in itself straight form.
Preferably, screw hole is inclined, may be such that screw and fusion device body is angled pierces backbone
Centrum.
The principle of technical solution of the present invention is：Memory alloy metal wire form in itself is straight, its installation site
In the side of screw hole.When pedicle screw, threaded portion is thinner, can easily by memorial alloy gold
Category silk.With the advance of screw, its afterbody will encounter memory alloy metal wire due to larger.Memorial alloy gold
Category silk has certain elasticity, so that it produces deformation in stress, the afterbody for allowing for screw passes through screw
Hole.After screw afterbody passes through, the memory function that memory alloy metal wire possesses causes that its recovery is straight again
Form, so as to prevent screw afterbody from being skidded off from Invasive lumbar fusion device, plays a part of lock screw, finally makes to melt
Clutch is fixed on the position of intervertebral, keeps its stability.
The present invention can be applied to lumbar vertebrae and cervical vertebral fusion cage, and the quantity of screw hole and position can be according to fusion device sheets
The size of body and it is adjusted using position.For example, because lumbar vertebra is larger, therefore lumbar fusion cages are usual
Size is larger, and certain contact area is kept with upper hypocentrum；And cervical vertebral body is smaller, therefore cervical vertebral fusion cage
Size generally it is smaller.
Specifically, for lumbar fusion cages, 2-4 root screws, 2-4 spiral shell of relative set can typically be squeezed into
Nail, is respectively mounted a memory alloy metal wire as locking device before each screw hole；For cervical vertebral fusion cage,
Because it is smaller, usual screw hole cannot beat the interior lateral direction in fusion device body, therefore can increase fusion
The front side size of device body, and then each up and down make a call to 2 holes, pedicle screw.
Instant invention overcomes the deficiencies in the prior art, the Invasive lumbar fusion device for being provided is using memorial alloy as prevention
The locking device that screw is skidded off from fusion device, can effectively avoid screw from being skidded off from fusion device, it is ensured that
Position of the fusion device in interverbebral disc, improves the shelf-stability of Invasive lumbar fusion device, so as to further promote vertebra
Between merge effect, additionally, being also greatly reduced the complexity of production cost and operation.
Brief description of the drawings
Fig. 1,2 are the schematic diagram of embodiment 1.
Fig. 3 is the schematic diagram of embodiment 2.
Fig. 4 is the schematic diagram of embodiment 3.
Fig. 5 is the schematic diagram of embodiment 4.
Specific embodiment
Embodiment 1
Fig. 1 and Fig. 2 show a kind of cervical vertebral fusion cage, including cervical vertebral fusion cage body 101 and screw 104,
The front side wall size of cervical vertebral fusion cage body 101 is increased, is set in the front side wall of cervical vertebral fusion cage body 101
Two screw holes 103, screw hole 103 is inclined, and a note is installed in the front of each screw hole 103
Recall alloying metal silk 102, the memory alloy metal wire is in itself straight form.The threaded portion of screw 104 compared with
Carefully, memory alloy metal wire can easily be passed through.With the advance of screw 104, its afterbody due to larger,
Memory alloy metal wire 102 will be encountered.Memory alloy metal wire 102 has certain elasticity, so that it is being received
Deformation is produced during power, the afterbody for allowing for screw 104 passes through screw hole 103.After screw afterbody passes through,
The memory function that memory alloy metal wire 102 possesses causes that it recovers straight form again, so as to prevent screw
Afterbody is skidded off from Invasive lumbar fusion device cervical vertebral fusion cage body 101, plays a part of lock screw 104.
Embodiment 2
As shown in figure 3, a kind of lumbar fusion cages, including lumbar fusion cages body 201, in lumbar fusion cages sheet
The front side wall of body 201 sets two screw holes 203, and a memory is installed in the front of each screw hole 203
Alloying metal silk 202, also including the screw of pluggable screw hole 203, so may be such that, after fixing, screw
The surface of position is consistent with the front side wall surfacing of lumbar fusion cages body 201.
Embodiment 3
As shown in figure 4, a kind of lumbar fusion cages, including lumbar fusion cages body 301, in lumbar fusion cages sheet
The front side wall of body 301 sets three screw holes 303, and a memory is installed in the front of each screw hole 303
Alloying metal silk 302, also including the screw of pluggable screw hole 303.
Embodiment 4
As shown in figure 5, a kind of lumbar fusion cages, including lumbar fusion cages body 401, in lumbar fusion cages sheet
The side wall of body 401 sets four screw holes 403, and a memorial alloy is installed in the front of each screw hole 403
Wire 402, also including the screw of pluggable screw hole 403.
Claims (7)
1. a kind of Invasive lumbar fusion device, including fusion device body and screw, screw is set in the front side wall of fusion device body
Hole, screw can be inserted into screw hole, it is characterised in that install a memory in the front of each screw hole
Alloying metal silk.
2. Invasive lumbar fusion device according to claim 1, it is characterised in that：The memory alloy metal wire is in itself
In straight form.
3. Invasive lumbar fusion device according to claim 1, it is characterised in that：The screw hole is inclined.
4. the Invasive lumbar fusion device according to claim 1,2 or 3, it is characterised in that：The fusion device body
It is cervical vertebral fusion cage body.
5. Invasive lumbar fusion device according to claim 4, it is characterised in that：Before the cervical vertebral fusion cage body
Side wall dimensions are increased, and two screw holes are set in the front side wall of cervical vertebral fusion cage body.
6. the Invasive lumbar fusion device according to claim 1,2 or 3, it is characterised in that：The fusion device body
It is lumbar fusion cages body.
7. Invasive lumbar fusion device according to claim 6, it is characterised in that：In the front side of lumbar fusion cages body
Wall sets 2-4 screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510415730.2A CN106691636A (en) | 2015-07-15 | 2015-07-15 | Interbody fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510415730.2A CN106691636A (en) | 2015-07-15 | 2015-07-15 | Interbody fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106691636A true CN106691636A (en) | 2017-05-24 |
Family
ID=58895101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510415730.2A Pending CN106691636A (en) | 2015-07-15 | 2015-07-15 | Interbody fusion cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106691636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588521A (en) * | 2020-05-29 | 2020-08-28 | 四川大学华西医院 | Cervical vertebra side front approach double-cortical fixation uncinate vertebra joint fusion cage |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316230A (en) * | 2000-04-04 | 2001-10-10 | 沃尔德马连接股份有限公司 | Plastic implant |
| US20050071007A1 (en) * | 2003-09-30 | 2005-03-31 | Malek Michel H. | Intervertebral disc prosthesis |
| US20060161157A1 (en) * | 2004-02-26 | 2006-07-20 | Lawrence Mosca | Bone plate system and methods |
| CN201244104Y (en) * | 2008-06-27 | 2009-05-27 | 常州奥斯迈医疗器械有限公司 | Intervertebral fusion device for locking anterior lumbar interbody |
| CN201701284U (en) * | 2010-04-23 | 2011-01-12 | 创生医疗器械(江苏)有限公司 | Waist and thoracic vertebra fusion cage |
| CN202437321U (en) * | 2012-02-09 | 2012-09-19 | 常州迪恩医疗器械有限公司 | Anterior interbody spinal fusion system of cervical vertebra |
| CN202740160U (en) * | 2012-07-19 | 2013-02-20 | 浙江海圣医疗器械有限公司 | Integral locking type cervical vertebral fusion cage |
| US20130197588A1 (en) * | 2005-11-09 | 2013-08-01 | Samy Abdou | Bone fixation systems and methods of implantation |
| CN103393487A (en) * | 2013-07-16 | 2013-11-20 | 江苏双羊医疗器械有限公司 | Interbody fusion apparatus |
| CN204890261U (en) * | 2015-07-15 | 2015-12-23 | 苏州锐进医疗科技有限公司 | Interverterbral fusion implement |
-
2015
- 2015-07-15 CN CN201510415730.2A patent/CN106691636A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316230A (en) * | 2000-04-04 | 2001-10-10 | 沃尔德马连接股份有限公司 | Plastic implant |
| US20050071007A1 (en) * | 2003-09-30 | 2005-03-31 | Malek Michel H. | Intervertebral disc prosthesis |
| US20060161157A1 (en) * | 2004-02-26 | 2006-07-20 | Lawrence Mosca | Bone plate system and methods |
| US20130197588A1 (en) * | 2005-11-09 | 2013-08-01 | Samy Abdou | Bone fixation systems and methods of implantation |
| CN201244104Y (en) * | 2008-06-27 | 2009-05-27 | 常州奥斯迈医疗器械有限公司 | Intervertebral fusion device for locking anterior lumbar interbody |
| CN201701284U (en) * | 2010-04-23 | 2011-01-12 | 创生医疗器械(江苏)有限公司 | Waist and thoracic vertebra fusion cage |
| CN202437321U (en) * | 2012-02-09 | 2012-09-19 | 常州迪恩医疗器械有限公司 | Anterior interbody spinal fusion system of cervical vertebra |
| CN202740160U (en) * | 2012-07-19 | 2013-02-20 | 浙江海圣医疗器械有限公司 | Integral locking type cervical vertebral fusion cage |
| CN103393487A (en) * | 2013-07-16 | 2013-11-20 | 江苏双羊医疗器械有限公司 | Interbody fusion apparatus |
| CN204890261U (en) * | 2015-07-15 | 2015-12-23 | 苏州锐进医疗科技有限公司 | Interverterbral fusion implement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588521A (en) * | 2020-05-29 | 2020-08-28 | 四川大学华西医院 | Cervical vertebra side front approach double-cortical fixation uncinate vertebra joint fusion cage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101547759B1 (en) | Medical inserting apparatus | |
| US10524841B2 (en) | Spine stabilization system | |
| US10195051B2 (en) | Compound-arc, splined anchor | |
| US20070233073A1 (en) | Spinal rod characterized by a time-varying stiffness | |
| CN103610523A (en) | Minimally invasive lateral approach interbody fusion device | |
| US20070118131A1 (en) | Anchor for Augmentation of Screw Purchase and Improvement of Screw Safety in Pedicle Screw Fixation and Bone Fracture Fixation Systems | |
| CN102860888B (en) | Integration lumbar intervertebral titanium plate fusion device | |
| Wang et al. | SPIRE spinous process stabilization plate: biomechanical evaluation of a novel technology: invited submission from the joint section meeting on disorders of the spine and peripheral nerves, March 2005 | |
| WO2007041648A3 (en) | Devices and methods for inter-vertebral orthopedic device placement | |
| KR101136427B1 (en) | Cervical intervertebral fusion device | |
| WO2011137051A1 (en) | Bone fixation device and method of validating its proper placement | |
| CN103610522A (en) | Lumbar vertebra posterior approach fusion device | |
| CN101332116A (en) | Spinal crest elastic internal fixation device | |
| US20130253589A1 (en) | Pedicle Screw Assembly with Locking Cap | |
| CN106691636A (en) | Interbody fusion cage | |
| CN201168030Y (en) | Implant article between spinous process | |
| US9827019B2 (en) | Returnable and dynamic fixation pedicle screw system of rail-chain type for socket | |
| CN204890261U (en) | Interverterbral fusion implement | |
| CN104546095A (en) | Adaptive floating combined cervical interbody fusion cage | |
| US9833266B2 (en) | Implantable vertebral arthrodesis device for fusing two overlying and underlying vertebrae | |
| CN106214238A (en) | Dynamic fixer between spine | |
| CN103142331B (en) | Extensive region pivot Lateral mass joint fusion device | |
| CN201453355U (en) | Vertebral plate forming and bone-knitting plate | |
| CN203988323U (en) | A kind of occipital plate and surgical fixation system | |
| CN203107337U (en) | Atlanto-axial lateral mass joint fusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
|
| WD01 | Invention patent application deemed withdrawn after publication |