CN104257422A - Inter-vertebral spacer suite - Google Patents
Inter-vertebral spacer suite Download PDFInfo
- Publication number
- CN104257422A CN104257422A CN201410550848.1A CN201410550848A CN104257422A CN 104257422 A CN104257422 A CN 104257422A CN 201410550848 A CN201410550848 A CN 201410550848A CN 104257422 A CN104257422 A CN 104257422A
- Authority
- CN
- China
- Prior art keywords
- base portion
- main body
- opening device
- external member
- device external
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
Abstract
The invention discloses an inter-vertebral spacer suite which comprises a plurality of spacers. Each spacer comprises a spacer main body and a handle connected at the back end of the spacer main body. Each spacer main body comprises a base portion and a front guide portion and a back connection portion connected at the front end and the back end of the base portion respectively. The area of the cross section of each front guide portion is decreased gradually from one end of the front guide portion close to the base portion to the other end of the front guide portion far away from the base portion. The area of the cross section of each back connection portion is decreased gradually from one end of the back connection portion close to the base portion to the other end of the back connection portion far away from the base portion. The handles are connected onto the back connection portions. The thicknesses of the base portions of the spacers are different from each other, and the thicknesses of the base portions of the spacers are increased gradually. During use, the spacer main body can enter narrow inter-vertebral space smoothly by aid of the front guide portions. In addition, the thicknesses of the base portions of the spacers are increased gradually by aid of the plurality of spacers, so that the inter-vertebral space can be enlarged gradually, and accordingly the inter-vertebral space can be spaced open conveniently.
Description
Technical field
The present invention relates to a kind of intervertebral opening device external member.
Background technology
Lumbar spondylolisthesis, Surgical treatment of degenerative lumbar scoliosis are common lumbar disc diseases.And serious lumbar spondylolisthesis, Surgical treatment of degenerative lumbar scoliosis etc. sick often with side or bilateral intervertebral space extremely narrow, over the course for the treatment of, need large for narrow intervertebral space support.At present, lack intervertebral pulling device in medical industry, thus cause narrow cone gap to strut operation very difficult.Thus, be necessary for people and a kind of intervertebral opening device external member that can realize narrow intervertebral space easily and strut is provided.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of intervertebral opening device external member, it can realize strutting of narrow intervertebral space easily.
For solving the problem, the technical solution adopted in the present invention is as follows:
Intervertebral opening device external member, comprises several dilators, and described dilator includes and struts main body, is connected to the lever strutting body rear; The described main body that struts comprises base portion, is separately positioned on the front guide part of base portion rear and front end and rear connecting portion; From the one end near base portion to the one end away from base portion, the cross-sectional area of described front guide part reduces gradually; From the one end near base portion to the one end away from base portion, the cross-sectional area of described rear guide part reduces gradually; Described lever is connected on rear connecting portion; The thickness of the base portion of each dilator is all different, and the thickness of the base portion of these several dilators increases progressively successively.
The thickness of the base portion of these several dilators increases progressively successively with identical tolerance, and described tolerance is 2mm, and the minimum base portion of thickness is that 4mm is thick.
This intervertebral opening device external member comprises seven dilators, and the thickness of the base portion of these seven dilators is respectively 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm.
The edges and corners strutting main body are all set to fillet.
The cross section of described base portion is tetragon.
Described lever comprises the connecting rod be connected with rear connecting portion; The both sides of described rod rear end are all formed with holding part, and the rear end of described connecting rod is set to tapered hammer portion.
Compared to existing technology, beneficial effect of the present invention is:
The present invention struts main body by what rationally to arrange dilator, front guide part can be utilized, make to strut main body can enter swimmingly in narrow intervertebral space, and, by adopting several dilators, and the thickness of the base portion of these several dilators is increased progressively successively, narrow intervertebral space can be expanded step by step, thus strutting of narrow intervertebral space can be realized easily; And, also can realize the reset of narrow intervertebral space; In addition, strutting main body by rationally arranging, also can avoid extracting when strutting main body and damaging nerve root and dural sac, to improve safety in utilization; By rationally arranging the structure of lever, being also convenient to strut the insertion of main body and exiting operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A place enlarged drawing of Fig. 1;
Wherein, 1, dilator; 21, connecting rod; 22, holding part; 23, hammer portion; 3, main body is strutted; 31, front guide part; 32, base portion; 33, rear connecting portion.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the present invention is described further, understands the present invention's technical thought required for protection so that clearer.
As shown in Figure 1, 2, be intervertebral opening device external member of the present invention, comprise several dilators 1, described dilator 1 includes and integratedly struts main body 3, is connected to the lever strutting main body 3 rear end; The described main body 3 that struts comprises base portion 32, is separately positioned on front guide part 31 and the rear connecting portion 33 of base portion 32 rear and front end; From the one end near base portion 32 to the one end away from base portion 32, the cross-sectional area of described front guide part 31 reduces gradually; From the one end near base portion 32 to the one end away from base portion 32, the cross-sectional area of described rear connecting portion 33 reduces gradually; Described lever is connected on rear connecting portion 33; The thickness of the base portion 32 of each dilator 1 is all different, and the thickness d of the base portion 32 of several dilators 1 increases progressively successively.Concrete, the cross section of described base portion 32 is tetragon, to be convenient to processing.
Preferably, the thickness of the base portion 32 of these several dilators 1 increases progressively successively with identical tolerance, and described tolerance is 2mm, and the minimum base portion 32 of thickness is that 4mm is thick.And by adopting said structure, rationally can arrange and supportting large distance step by step, making narrow intervertebral space can support greatly step by step equably, to recover intervertebral height and reset intervertebral.Preferred further, this intervertebral opening device external member comprises seven dilators 1, and the thickness of the base portion 32 of these seven dilators 1 is respectively 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm.
Preferably, the edges and corners strutting main body 3 are all set to fillet.The present invention by rationally arranging the structure of rear connecting portion 33, and by conjunction with said structure, can avoid strutting main body 3 infringement nerve root and dural sac when inserting or exit narrow intervertebral space.
Described lever is roughly in " T " font, concrete, described lever comprise be connected with rear connecting portion 33 connecting rod 21; The both sides of described connecting rod 21 rear end are all formed with holding part 22, and the rear end of described connecting rod 21 is set to tapered hammer portion 23.Concrete, the rear surface of hammer portion 23 is set to cambered outwards cambered surface.By utilizing hammer portion 23, user hammering can be convenient to, main body 3 will be strutted and be driven in intervertebral space; And by utilizing holding part 22, can be convenient to user holds, and be convenient to user force will strut main body 3 from bore gap extract.
When practice, thick by being as thin as of base portion 32 thickness, these several dilators 1 can be divided into first order dilator (namely base portion 32 is the dilator that 4mm is thick), second level dilator (namely base portion 32 is the dilator that 6mm is thick) ... n-th grade of dilator.In use, user holds lever, can first the main body 3 that struts of first order dilator be inserted in narrow intervertebral space, then in order by second dilator, the 3rd dilator ... the main body 3 that struts of n-th grade of dilator is inserted in narrow intervertebral space respectively, progressively to expand narrow intervertebral space, thus be convenient to realize strutting of narrow intervertebral space.And annulus fibrosus disci intervertebralis and front and back longitudinal ligament passivity can be made to loosen when narrow intervertebral space struts step by step, thus can intervertebral height be recovered, and intervertebral is resetted.
The present invention struts main body 3 by what rationally to arrange dilator 1, front guide part 31 can be utilized, making to strut main body 3 enters in narrow intervertebral space swimmingly, and, by adopting several dilators, and the thickness of the base portion 32 of these several dilators 1 is increased progressively successively, can progressively expand narrow intervertebral space, thus strutting of narrow intervertebral space can be realized easily, meanwhile, the reset of narrow intervertebral space also can be realized; In addition, strutting main body 3 by rationally arranging, also can avoid extracting injured nerve root when strutting main body 3, to improve safety in utilization; By rationally arranging the structure of lever, being also convenient to strut the insertion of main body 3 and exiting operation.
Above-mentioned embodiment is only the preferred embodiment of the present invention; can not limit the scope of protection of the invention with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present invention all belong to the present invention's scope required for protection.
Claims (6)
1. intervertebral opening device external member, is characterized in that: comprise several dilators, and described dilator includes and struts main body, is connected to the lever strutting body rear; The described main body that struts comprises base portion, is separately positioned on the front guide part of base portion rear and front end and rear connecting portion; From the one end near base portion to the one end away from base portion, the cross-sectional area of described front guide part reduces gradually; From the one end near base portion to the one end away from base portion, the cross-sectional area of described rear guide part reduces gradually; Described lever is connected on rear connecting portion; The thickness of the base portion of each dilator is all different, and the thickness of the base portion of these several dilators increases progressively successively.
2. intervertebral opening device external member as claimed in claim 1, it is characterized in that: the thickness of the base portion of these several dilators increases progressively successively with identical tolerance, described tolerance is 2mm, and the minimum base portion of thickness is that 4mm is thick.
3. intervertebral opening device external member as claimed in claim 2, is characterized in that: this intervertebral opening device external member comprises seven dilators, and the thickness of the base portion of these seven dilators is respectively 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm.
4. intervertebral opening device external member as claimed in claim 1, is characterized in that: the edges and corners strutting main body are all set to fillet.
5. intervertebral opening device external member as claimed in claim 1, is characterized in that: the cross section of described base portion is tetragon.
6. intervertebral opening device external member as claimed in claim 1, is characterized in that: described lever comprises the connecting rod be connected with rear connecting portion; The both sides of described rod rear end are all formed with holding part, and the rear end of described connecting rod is set to tapered hammer portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410550848.1A CN104257422A (en) | 2014-10-16 | 2014-10-16 | Inter-vertebral spacer suite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410550848.1A CN104257422A (en) | 2014-10-16 | 2014-10-16 | Inter-vertebral spacer suite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104257422A true CN104257422A (en) | 2015-01-07 |
Family
ID=52149091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410550848.1A Pending CN104257422A (en) | 2014-10-16 | 2014-10-16 | Inter-vertebral spacer suite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104257422A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018076957A1 (en) * | 2016-10-31 | 2018-05-03 | 高雄医学大学 | Guide for surgical purpose |
| CN108590225A (en) * | 2018-07-12 | 2018-09-28 | 中交路桥华南工程有限公司 | The removal tool and its application method of concrete embedded tubing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040078079A1 (en) * | 2002-10-21 | 2004-04-22 | Foley Kevin T. | Systems and techniques for restoring and maintaining intervertebral anatomy |
| CN201175392Y (en) * | 2008-04-15 | 2009-01-07 | 张桦 | Strutting type intervertebral fusion device and imbedding device thereof |
| CN201847760U (en) * | 2010-11-11 | 2011-06-01 | 李云峰 | Vertebral column centrum expanding device |
| CN202191381U (en) * | 2011-07-12 | 2012-04-18 | 丁亮华 | Adjustable intervertebral fusion device |
| CN203436433U (en) * | 2013-07-22 | 2014-02-19 | 天津市威曼生物材料有限公司 | Cervical fusion cage |
| CN103767779A (en) * | 2012-10-26 | 2014-05-07 | 苏州点合医疗科技有限公司 | Stacking-type full-height centrum forming device |
| CN203609548U (en) * | 2013-12-02 | 2014-05-28 | 苏州点合医疗科技有限公司 | Displacement-proof integral-expansion-type intervertebral fusion device |
| CN204169915U (en) * | 2014-10-16 | 2015-02-25 | 广州医科大学附属第一医院 | Intervertebral opening device external member |
-
2014
- 2014-10-16 CN CN201410550848.1A patent/CN104257422A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040078079A1 (en) * | 2002-10-21 | 2004-04-22 | Foley Kevin T. | Systems and techniques for restoring and maintaining intervertebral anatomy |
| CN201175392Y (en) * | 2008-04-15 | 2009-01-07 | 张桦 | Strutting type intervertebral fusion device and imbedding device thereof |
| CN201847760U (en) * | 2010-11-11 | 2011-06-01 | 李云峰 | Vertebral column centrum expanding device |
| CN202191381U (en) * | 2011-07-12 | 2012-04-18 | 丁亮华 | Adjustable intervertebral fusion device |
| CN103767779A (en) * | 2012-10-26 | 2014-05-07 | 苏州点合医疗科技有限公司 | Stacking-type full-height centrum forming device |
| CN203436433U (en) * | 2013-07-22 | 2014-02-19 | 天津市威曼生物材料有限公司 | Cervical fusion cage |
| CN203609548U (en) * | 2013-12-02 | 2014-05-28 | 苏州点合医疗科技有限公司 | Displacement-proof integral-expansion-type intervertebral fusion device |
| CN204169915U (en) * | 2014-10-16 | 2015-02-25 | 广州医科大学附属第一医院 | Intervertebral opening device external member |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018076957A1 (en) * | 2016-10-31 | 2018-05-03 | 高雄医学大学 | Guide for surgical purpose |
| CN108590225A (en) * | 2018-07-12 | 2018-09-28 | 中交路桥华南工程有限公司 | The removal tool and its application method of concrete embedded tubing |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150107 |
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| RJ01 | Rejection of invention patent application after publication |