CN203662946U - Minimally invasive lateral approach interbody fusion cage - Google Patents
Minimally invasive lateral approach interbody fusion cage Download PDFInfo
- Publication number
- CN203662946U CN203662946U CN201320841795.XU CN201320841795U CN203662946U CN 203662946 U CN203662946 U CN 203662946U CN 201320841795 U CN201320841795 U CN 201320841795U CN 203662946 U CN203662946 U CN 203662946U
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- China
- Prior art keywords
- main body
- fusion device
- wall
- development pin
- invasive lumbar
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The utility model discloses a minimally invasive lateral approach interbody fusion cage which is used for an interbody fusion operation. The minimally invasive lateral approach interbody fusion cage comprises a body and a developing needle, wherein the cross section of the body is rectangular, the body is vertically hollow inside and comprises a head end, a tail end and a center wall, the center wall is arranged inside the body to divide a cavity of the body into a front bone grafting cavity and a rear bone grafting cavity, reverse teeth and multiple through holes are arranged on the lateral walls of the body, a threaded through hole used for being connected with fusion cage installation equipment is formed in the tail end of the body, the developing needle is arranged on the body, the lateral side of the head end of the body is in the shape of a bullet, and the fusion cage is as long as the coronal plane of the human centrum, slightly narrower than the sagittal plane of the human centrum and as high as intervertebral space. According to the minimally invasive lateral approach interbody fusion cage, the size conforms to the human figure, implantation can be achieved conveniently, installation is easy to achieve, peeling of a large area of erector spinae is not needed, physiological and mechanical stability of the lumbar vertebra is maintained, and a good condition is provided for bone graft fusion and long-term stability of an outside thoracolumbar spine fusion cage and recovering of the spinal physiological curvature.
Description
Technical field
This utility model relates to breast intervertebral disc of lumbar vertebra implant research field, particularly a kind of Wicresoft side approach Invasive lumbar fusion device.
Background technology
Along with the aging of China's population, in middle-aged and elderly people more than 50 years old, the HUMAN DEGENERATIVE INTERVERTEBRAL DISCS skoliosis that intervertebral disc and articular process regression and secondary occur has become common disease, this disease is also often with lumbar spinal stenosis and Segmental instability, although this course advancement is slow, but lumbago and skelalgia can increase the weight of year by year, causes puzzlement to sufferer.Particularly the recall rate of Thoracic and breast lumbar segment (T10-T12) intervertebral disc prolapse has the trend of obvious rising at present, once spinal cord is often accompanied in morbidity clinically, and the infringement of circular cone and cauda equina nerve, severe patient can cause paralysis.
Have two kinds of Therapeutic Method for this class disease at present, one is Drug therapy, and one is operative treatment, although Drug therapy relief of symptoms temporarily can not solve root problem.Operative treatment is unique effective means of removing pain, correction deformity, reconstruction spinal stabilization.But traditional operation wound is large, hemorrhage many, easily Spinal Cord nerve, gerontal patient is difficult to tolerance.Therefore finding a kind of backbone correcting method that wound is little, intraoperative hemorrhage is few, post-operative recovery is fast is the key issue that must solve.
Existing lumbar spinal fusion is one of classical way for the treatment of degenerative lumbar shakiness, can recover the physiologic radian of spinal column, and fusion rate of bone graft is high.The Posterolateral fusion of the open lumbar vertebra posterior-path fusion of tradition and spinal column intervertebral spinal fusion, long incision, hemorrhage many, need to carry out muscle widely and peel off and long tractive, a kind of therefore find Wicresoft method is applied to the clinical development trend that become at present.
Utility model content
Main purpose of the present utility model is that the shortcoming that overcomes prior art is with not enough, a kind of Wicresoft side approach Invasive lumbar fusion device is provided, this fusion device energy matching with micro-traumatic side approach intervertebral fusion operation, carry out the implantation of breast lumbar intervertebral fusion device by means of Wicresoft's passage, can meet the requirement of present Minimally Invasive Surgery, meet human physiological structure, there is suitable own vol, all wall thickness and soleplate contact area, can fill sclerotin by q.s, have good support function, and implant conveniently.
The purpose of this utility model realizes by following technical scheme: Wicresoft's side approach Invasive lumbar fusion device, comprise main body and development pin, body cross-section is rectangle, inside is vertical hollow, comprise head end, end and median wall, median wall is arranged on body interior, and main body cavity is divided into planting in advance bone cavity and rear bone grafting chamber, is provided with pawl and several through holes in main body wall; Described main body end is provided with the tapped through hole for being connected with fusion device erection unit; Development pin is located in main body.Before and after main body, the design of sidewall bone grafting window can, for the sclerotin in fusion device provides nutrition and blood supply, provide good physiological condition for bone merges.
Preferably, the cross section of described main body head end is rectangle, and side is bullet-headed, and in bullet-headed structure, two hypotenuses are circular arc, and two circular arcs intersect at a point with main body wall respectively, and the angle of crossing these two tangent lines of 2 is 10 °-30 °.Adopt this design can facilitate main body to implant joint of lumbar vertebra gap, resistance is little, is easy to implant.
Preferably, the tooth base angle of the pawl arranging in described main body wall is 60 °, tooth depth 0.8-1.0mm.
Preferably, described main body wall is divided into front side wall and rear wall, and several symmetrical through holes are set respectively on front side wall and rear wall, and aperture is 1-4mm.。
Preferably, the length of described fusion device is consistent with the coronalplane length of corpus vertebrae, and width is 70%～80% of sagittal plane width, and height is consistent with disc height.Thereby can make fusion device have larger contact area.
Preferably, described main body end lateral surface is also provided with 2 auxiliary positioning holes, and the symmetrical horizontal distribution in auxiliary positioning hole is on tapped through hole both sides.So that the installation of apparatus, and apparatus fully contacts with fusion device while making to implant, stressed evenly.
Further, described main body end upper and lower surface is provided with several arc grooves, and radius of curvature is 0.5-1.0mm.Thereby can increase frictional force, maintain initial stability.
Preferably, described main body adopts polyether-ether-ketone (PEEK) material.This Biocompatibility is good, and its elastic modelling quantity and human body proximity can reduce stress shielding, promotes to merge.
Preferred as one, described development pin comprises front development pin, head end development pin and end development pin, and front development pin is positioned at median wall and front side wall joint; Head end development pin is positioned at main body head end and rear wall junction, apart from head end 1.0-1.5mm foremost; End development pin is positioned at end and rear wall junction, and apart from end rearmost end 1.0-1.5mm, development pin all connects in vertical direction, is all revealed in surface.Thereby can observe by x line the position of assessment Invasive lumbar fusion device from positive and side.
Preferably, described development pin is medical titanium alloy (TC4) material, development pin diameter 0.8mm.
Compared with prior art, tool has the following advantages and beneficial effect this utility model:
1, this utility model size conforms characteristics of human body, with upper and lower joint contact area maximum, adopts the mode of side approach, little otch, and Wicresoft can directly arrive intervertebral disc of lumbar vertebra under special aid, directly does intervertebral decompression and extracts intervertebral disc.
2, this utility model is implanted conveniently, installs simple.Fusion device far-end, for tip designs, can reduce and block, and it is convenient to implant.Installing apparatus can be connected with fusion device by fusion device through hole whorl, can easily put into operative region, and being rotated counterclockwise can removal equipment.Pawl increasing friction force prevents that fusion device from skidding off between vertebral body.
3, this utility model can retain Facet joint, spinous process, interspinal ligaments, posterior longitudinal ligament to greatest extent, do not need to peel off on a large scale back flesh, maintain lumbar vertebra physiology and mechanics stable, for outer pleurobranch lumbar fusion cages bone merges, physiologic radian stable for a long time and recovery spinal column is created good condition.
4, the main body in this utility model adopts polyether-ether-ketone (PEEK) material, good biocompatibility, and its elastic modelling quantity and human body proximity, radioprotective, resistance to wears, and creep resisting ability is strong.Can see through x-ray, can not produce artifact and block, facilitate doctor to assess fusion situation, be the material of current best manufacture fusion device.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment 1;
Fig. 2 is the structural representation of looking up of structure shown in Fig. 1;
Fig. 3 is the side structure schematic diagram of structure shown in Fig. 1;
Fig. 4 is main body end Facad structure schematic diagram in structure shown in Fig. 1;
Fig. 5 is the structural representation of main body head end in structure shown in Fig. 1.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
As shown in Figure 1, for the fusion device of breast lumbar intervertebral, comprise main body and development pin (21,22,23) described in the present embodiment, body cross-section is rectangle, and inside is vertical hollow.Main body comprises head end 3, end 4, front side wall 1, rear wall 8 and median wall 10, and median wall 10 is arranged on body interior, and main body cavity is divided into planting in advance bone cavity 11 and rear bone grafting chamber 12.When use, by Minimally Invasive Surgery passage, fusion device is implanted between vertebral body, due to front pillar and the middle columnar region of fusion device connection vertebral body, in order to make fusion device have larger contact area, fusion device length in the present embodiment is consistent with the coronalplane length of corpus vertebrae, width is 70%～80% of sagittal plane width, and height is consistent with disc height.
As shown in Figure 1, 2, 3, the cross section of described main body head end 3 is rectangle, and side is bullet-headed.In bullet-headed structure, two hypotenuses (as the L1 in Fig. 5, L2) are circular arc, and two circular arcs intersect at a point with main body wall respectively, and the angle of crossing these two tangent lines of 2 is 10 °-30 °, as shown in angle A in figure.In main body wall, be provided with pawl 9, the tooth base angle of pawl 9 is 60 °, tooth depth 0.8-1.0mm.As shown in Figure 3, be also provided with respectively 4 through holes 13 on front side wall and rear wall, aperture is 1-4mm, and the through hole on two sidewalls is symmetrical.
As shown in Figure 4, described main body end 4 is provided with screwed hole 5 and two the auxiliary positioning holes 6 for being connected with fusion device erection unit, and the symmetrical horizontal distribution in auxiliary positioning hole 6 is on tapped through hole 5 both sides.As illustrated in fig. 1 and 2, main body end 4 upper and lower surfaces are provided with several arc grooves 14, and radius of curvature is 0.5-1.0mm.
As shown in Figure 1, described development pin comprises front development pin 22, head end development pin 21 and end development pin 23, and front development pin 22 is positioned at median wall 10 and front side wall 1 joint; Head end development pin 21 is positioned at main body head end 3 and rear wall 8 junctions, apart from head end 3 1.0-1.5mm foremost; End development pin 23 is positioned at end 4 and rear wall 8 junctions, and apart from end 4 rearmost end 1.0-1.5mm, development pin all connects in vertical direction, is all revealed in surface.
In the present embodiment, described development pin is medical titanium alloy (TC4) material, development pin diameter 0.8mm.Described main body adopts polyether-ether-ketone (PEEK) material.
Above-described embodiment is preferably embodiment of this utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (10)
1. Wicresoft side approach Invasive lumbar fusion device, it is characterized in that, comprise main body and development pin, body cross-section is rectangle, inside is vertical hollow, comprises head end, end and median wall, and median wall is arranged on body interior, main body cavity is divided into planting in advance bone cavity and rear bone grafting chamber, in main body wall, is provided with pawl and several through holes; Described main body end is provided with the tapped through hole for being connected with fusion device erection unit; Development pin is located in main body.
2. Wicresoft according to claim 1 side approach Invasive lumbar fusion device, it is characterized in that, the cross section of described main body head end is rectangle, side is bullet-headed, in bullet-headed structure, two hypotenuses are circular arc, two circular arcs intersect at a point with main body wall respectively, and the angle of crossing these two tangent lines of 2 is 10 °-30 °.
3. Wicresoft according to claim 1 side approach Invasive lumbar fusion device, is characterized in that, the tooth base angle of the pawl arranging in described main body wall is 60 °, tooth depth 0.8-1.0mm.
4. Wicresoft according to claim 1 side approach Invasive lumbar fusion device, is characterized in that, described main body wall is divided into front side wall and rear wall, and several symmetrical through holes are set respectively on front side wall and rear wall, and aperture is 1-4mm.
5. Wicresoft according to claim 1 side approach Invasive lumbar fusion device, is characterized in that, the length of described fusion device is consistent with the coronalplane length of corpus vertebrae, and width is 70%～80% of sagittal plane width, and height is consistent with disc height.
6. Wicresoft according to claim 1 side approach Invasive lumbar fusion device, is characterized in that, described main body end lateral surface is also provided with 2 auxiliary positioning holes, and the symmetrical horizontal distribution in auxiliary positioning hole is on tapped through hole both sides.
7. Wicresoft according to claim 6 side approach Invasive lumbar fusion device, is characterized in that, described main body end upper and lower surface is provided with several arc grooves, and radius of curvature is 0.5-1.0mm.
8. Wicresoft according to claim 4 side approach Invasive lumbar fusion device, is characterized in that, described development pin comprises front development pin, head end development pin and end development pin, and front development pin is positioned at median wall and front side wall joint; Head end development pin is positioned at main body head end and rear wall junction, apart from head end 1.0-1.5mm foremost; End development pin is positioned at end and rear wall junction, and apart from end rearmost end 1.0-1.5mm, development pin all connects in vertical direction, is all revealed in surface.
9. Wicresoft according to claim 1 side approach Invasive lumbar fusion device, is characterized in that, described main body adopts polyetheretherketonematerials materials.
10. Wicresoft according to claim 1 side approach Invasive lumbar fusion device, is characterized in that, described development pin is medical titanium alloy material, development pin diameter 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320841795.XU CN203662946U (en) | 2013-12-18 | 2013-12-18 | Minimally invasive lateral approach interbody fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320841795.XU CN203662946U (en) | 2013-12-18 | 2013-12-18 | Minimally invasive lateral approach interbody fusion cage |
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| CN203662946U true CN203662946U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320841795.XU Expired - Fee Related CN203662946U (en) | 2013-12-18 | 2013-12-18 | Minimally invasive lateral approach interbody fusion cage |
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| CN (1) | CN203662946U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103610523A (en) * | 2013-12-18 | 2014-03-05 | 广州聚生生物科技有限公司 | Minimally invasive lateral approach interbody fusion device |
| CN104706447A (en) * | 2015-03-24 | 2015-06-17 | 李鹏 | Bionic bone trabecula lumbar vertebra fusion cage and manufacturing method thereof |
| CN106236330A (en) * | 2016-08-22 | 2016-12-21 | 浙江康慈医疗科技有限公司 | Dypass waist Invasive lumbar fusion device |
| CN106473846A (en) * | 2016-12-09 | 2017-03-08 | 邹德威 | Spinal column dypass intervertebral fixes fusion device |
| CN106963522A (en) * | 2017-04-21 | 2017-07-21 | 中国人民解放军第二军医大学第二附属医院 | A kind of micro-wound pressure-reduced emerging system of posterolateral lumbar spinal |
| CN109009579A (en) * | 2018-06-29 | 2018-12-18 | 何清义 | A kind of round bar shape XLIF Invasive lumbar fusion device |
| CN111839835A (en) * | 2020-08-31 | 2020-10-30 | 四川大学华西医院 | Intervertebral fusion fixer for lateral anterior approach vertebral body reconstruction |
-
2013
- 2013-12-18 CN CN201320841795.XU patent/CN203662946U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103610523A (en) * | 2013-12-18 | 2014-03-05 | 广州聚生生物科技有限公司 | Minimally invasive lateral approach interbody fusion device |
| CN104706447A (en) * | 2015-03-24 | 2015-06-17 | 李鹏 | Bionic bone trabecula lumbar vertebra fusion cage and manufacturing method thereof |
| CN106236330A (en) * | 2016-08-22 | 2016-12-21 | 浙江康慈医疗科技有限公司 | Dypass waist Invasive lumbar fusion device |
| CN106236330B (en) * | 2016-08-22 | 2019-03-05 | 浙江康慈医疗科技有限公司 | Dypass waist Invasive lumbar fusion device |
| CN106473846A (en) * | 2016-12-09 | 2017-03-08 | 邹德威 | Spinal column dypass intervertebral fixes fusion device |
| CN106473846B (en) * | 2016-12-09 | 2018-03-27 | 邹德威 | Backbone dypass intervertebral fixes fusion device |
| CN106963522A (en) * | 2017-04-21 | 2017-07-21 | 中国人民解放军第二军医大学第二附属医院 | A kind of micro-wound pressure-reduced emerging system of posterolateral lumbar spinal |
| CN106963522B (en) * | 2017-04-21 | 2018-09-11 | 中国人民解放军第二军医大学第二附属医院 | A kind of micro-wound pressure-reduced emerging system of posterolateral lumbar spinal |
| CN109009579A (en) * | 2018-06-29 | 2018-12-18 | 何清义 | A kind of round bar shape XLIF Invasive lumbar fusion device |
| CN111839835A (en) * | 2020-08-31 | 2020-10-30 | 四川大学华西医院 | Intervertebral fusion fixer for lateral anterior approach vertebral body reconstruction |
| CN111839835B (en) * | 2020-08-31 | 2022-04-12 | 四川大学华西医院 | Intervertebral fusion fixer for lateral anterior approach vertebral body reconstruction |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20181218 |