CN103610523A - Minimally invasive lateral approach interbody fusion device - Google Patents
Minimally invasive lateral approach interbody fusion device Download PDFInfo
- Publication number
- CN103610523A CN103610523A CN201310699878.4A CN201310699878A CN103610523A CN 103610523 A CN103610523 A CN 103610523A CN 201310699878 A CN201310699878 A CN 201310699878A CN 103610523 A CN103610523 A CN 103610523A
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- Prior art keywords
- fusion device
- main body
- 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 invention discloses a minimally invasive lateral approach interbody fusion device used for interbody fusion operations. The interbody fusion device comprises a device body and a developing needle, the cross section of the device body is rectangular, the inside of the device body is hollow vertically and comprises a head end, a tail end and a center wall, the center wall is arranged in the device body and divides a device body cavity into a front bone grafting cavity and a rear bone grafting cavity, reversed teeth and a plurality of through holes are formed in the side wall of the device body, the tail end of the device body is provided with threaded through holes used for being connected with fusion device installing equipment, and the developing needle is arranged on the device body. The side face of the head end of the device body is in a bullet shape, the length of the fusion device is consistent with the length of the coronal plane of the human body centrum, the width of the fusion device is slightly smaller than that of the sagittal plane, and the height of the fusion device is consistent with that of interbody spaces. The minimally invasive lateral approach interbody fusion device fits human body characteristics in size, convenient to implant and easy to install, does not need to peel the erector spinae in a large range, maintains physiology and mechanics stability of the lumbar vertebra and creates good conditions for bone graft fusion of an outer side thoracolumbar spine fusion device and stabling and recovering the physiological curvature of the spinal column for the long time.
Description
Technical field
The present invention relates to breast intervertebral disc of lumbar vertebra implant research field, particularly a kind of Wicresoft side approach Invasive lumbar fusion device.
Background technology
Aging along with China's population, in more than 50 years old middle-aged and elderly people, 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, to sufferer, causes puzzlement.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.
For this class disease, have two kinds of Therapeutic Method at present, a kind of is Drug therapy, and a kind of 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 is neural, and 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.
Summary of the invention
Main purpose of the present invention 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, by means of Wicresoft's passage, carry out the implantation of breast lumbar intervertebral fusion device, 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.
Object of the present invention 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 provide for the sclerotin in fusion device nutrition and blood supply, for bone merges, provides good physiological condition.
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.
As a kind of preferred, 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 from positive and side, observe by x line the position of assessment Invasive lumbar fusion device.
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 in the present invention:
1, size conforms characteristics of human body of the present invention, maximum with upper and lower joint contact area, the mode of employing side approach, little otch, Wicresoft can directly arrive intervertebral disc of lumbar vertebra under special aid, directly does intervertebral decompression and extracts intervertebral disc.
2, the present invention implants 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, the present invention 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 the present invention 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.
Accompanying drawing explanation
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.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are 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.During use, by Minimally Invasive Surgery passage, fusion device is implanted between vertebral body, front pillar and middle columnar region due to 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 the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
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.
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| CN201310699878.4A CN103610523A (en) | 2013-12-18 | 2013-12-18 | Minimally invasive lateral approach interbody fusion device |
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| CN201310699878.4A CN103610523A (en) | 2013-12-18 | 2013-12-18 | Minimally invasive lateral approach interbody fusion device |
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| CN201310699878.4A Pending CN103610523A (en) | 2013-12-18 | 2013-12-18 | Minimally invasive lateral approach interbody fusion device |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105232191A (en) * | 2015-11-06 | 2016-01-13 | 天津市天津医院 | Intervertebral fusion device capable of being braced in transverse direction |
| CN105287062A (en) * | 2015-12-09 | 2016-02-03 | 北京市富乐科技开发有限公司 | Lateral-admission-passage zero-incisure fusion cage |
| CN105287060A (en) * | 2014-12-01 | 2016-02-03 | 赵大镇 | Intervertebral cage for spinal implant |
| 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 |
| CN106308982A (en) * | 2016-08-22 | 2017-01-11 | 浙江康慈医疗科技有限公司 | Lumbar interbody fusion cage |
| CN107802383A (en) * | 2017-11-16 | 2018-03-16 | 天津正天医疗器械有限公司 | Lumbar vertebrae Invasive lumbar fusion device with Bone Ingrowth micropore |
| CN108056845A (en) * | 2017-12-15 | 2018-05-22 | 深圳清华大学研究院 | A kind of dypass lumbar intervertebral fusion device |
| CN108125736A (en) * | 2018-02-09 | 2018-06-08 | 申才良 | A kind of spliced homogeneous allogenic bone fusion device |
| CN108742954A (en) * | 2018-06-28 | 2018-11-06 | 何清义 | A kind of plate XLIF Invasive lumbar fusion devices |
| CN108742953A (en) * | 2018-03-19 | 2018-11-06 | 唐小毛 | A kind of minimally invasive double cortex centrum screw self-stabilization type " ear " type lumbar intervertebral fusion devices |
| CN109009579A (en) * | 2018-06-29 | 2018-12-18 | 何清义 | A kind of round bar shape XLIF Invasive lumbar fusion device |
| CN110384574A (en) * | 2019-04-24 | 2019-10-29 | 河南省直第三人民医院 | A kind of method of the 3D printing Thoracolumbar disk lateral approach interbody fusion device of individuation |
| 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 |
| CN110769784A (en) * | 2016-10-25 | 2020-02-07 | 肌肉骨骼科学教育研究所有限公司 | Implant with protected fusion zone |
| CN111714167A (en) * | 2020-06-15 | 2020-09-29 | 中国人民解放军总医院 | Split-assembly type lateral approach lumbar intervertebral fusion system |
| WO2023077664A1 (en) * | 2021-11-05 | 2023-05-11 | 天津市天津医院 | Expandable intervertebral implant |
| CN117224293A (en) * | 2023-11-14 | 2023-12-15 | 苏州大学附属第二医院 | Interbody fusion cage and transverse guiding implantation tool thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105287060A (en) * | 2014-12-01 | 2016-02-03 | 赵大镇 | Intervertebral cage for spinal implant |
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| CN105287062A (en) * | 2015-12-09 | 2016-02-03 | 北京市富乐科技开发有限公司 | Lateral-admission-passage zero-incisure fusion cage |
| 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 |
| 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 |
| CN106308982A (en) * | 2016-08-22 | 2017-01-11 | 浙江康慈医疗科技有限公司 | Lumbar interbody fusion cage |
| CN110769784A (en) * | 2016-10-25 | 2020-02-07 | 肌肉骨骼科学教育研究所有限公司 | Implant with protected fusion zone |
| US11452611B2 (en) | 2016-10-25 | 2022-09-27 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with protected fusion zones |
| CN110769784B (en) * | 2016-10-25 | 2022-04-05 | 肌肉骨骼科学教育研究所有限公司 | Implant with protected fusion zone |
| CN107802383A (en) * | 2017-11-16 | 2018-03-16 | 天津正天医疗器械有限公司 | Lumbar vertebrae Invasive lumbar fusion device with Bone Ingrowth micropore |
| CN108056845A (en) * | 2017-12-15 | 2018-05-22 | 深圳清华大学研究院 | A kind of dypass lumbar intervertebral fusion device |
| CN108125736A (en) * | 2018-02-09 | 2018-06-08 | 申才良 | A kind of spliced homogeneous allogenic bone fusion device |
| CN108742953A (en) * | 2018-03-19 | 2018-11-06 | 唐小毛 | A kind of minimally invasive double cortex centrum screw self-stabilization type " ear " type lumbar intervertebral fusion devices |
| CN108742954A (en) * | 2018-06-28 | 2018-11-06 | 何清义 | A kind of plate XLIF Invasive lumbar fusion devices |
| CN109009579A (en) * | 2018-06-29 | 2018-12-18 | 何清义 | A kind of round bar shape XLIF Invasive lumbar fusion device |
| CN110384574A (en) * | 2019-04-24 | 2019-10-29 | 河南省直第三人民医院 | A kind of method of the 3D printing Thoracolumbar disk lateral approach interbody fusion device of individuation |
| 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 |
| CN111714167A (en) * | 2020-06-15 | 2020-09-29 | 中国人民解放军总医院 | Split-assembly type lateral approach lumbar intervertebral fusion system |
| WO2023077664A1 (en) * | 2021-11-05 | 2023-05-11 | 天津市天津医院 | Expandable intervertebral implant |
| CN117224293A (en) * | 2023-11-14 | 2023-12-15 | 苏州大学附属第二医院 | Interbody fusion cage and transverse guiding implantation tool thereof |
| CN117224293B (en) * | 2023-11-14 | 2024-01-23 | 苏州大学附属第二医院 | Transverse guiding implantation tool of interbody fusion cage |
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Application publication date: 20140305 |
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