CN103908329B - A kind of threaded fusion cage - Google Patents
A kind of threaded fusion cage Download PDFInfo
- Publication number
- CN103908329B CN103908329B CN201410091641.2A CN201410091641A CN103908329B CN 103908329 B CN103908329 B CN 103908329B CN 201410091641 A CN201410091641 A CN 201410091641A CN 103908329 B CN103908329 B CN 103908329B
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- CN
- China
- Prior art keywords
- push rod
- fusant
- pawl
- head
- axis
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Classifications
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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
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Transplantation (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Prostheses (AREA)
Abstract
The invention provides a kind of threaded fusion cage technical scheme, the program includes fusant and the push rod be connected with fusant axial thread in fusant, the feature of this programme rectangle that to be the upright projection of described fusant be with chamfering, the top of this fusant is base portion, bottom is head, is the integrative-structure in pawl portion between base portion and head; Described pawl portion only has front and back two pawl walls of fusant band pawl, lacks two sidewalls, and two described pawl walls have corresponding pawl cinclides; Described head is inverted trapezoidal platform, and there is the head opening parallel with two pawl walls the bottom surface of head, and the both sides of described head inwall head opening are inclined-plane; Have push rod cross-drilled hole to run through push rod at the middle and lower part vertical pusher axis of described push rod, the axis on described push rod top along push rod has push rod axis hole to be connected with push rod cross-drilled hole.
Description
Technical field
What the present invention relates to is a kind of medical surgical instrument, especially a kind of threaded fusion cage for thoracic and lumbar vertebral posterior operation.
Background technology
Threaded fusion cage is widely used in spinal surgery, the intervertebral space being mainly used in diskectomy hands is rebuild, in the prior art, the technical scheme the most close with the application is the application number of being authorized by Patent Office of State Intellectual Property Office is 201120350285.3, title: the utility model patent of expanding interbody fusion cage, bone grafting window is lacked in the technical scheme of this patent, in operation, be difficult to osseous granules to inject carry out bone grafting, therefore Post operation fusion device and vertebral fusion difficulty, easily become the foreign body in body, there is certain operation risk, this is the weak point existing for prior art.
Summary of the invention
Technical problem to be solved by this invention, be exactly for the deficiency existing for prior art, and a kind of threaded fusion cage technical scheme is provided, the program adopts the fusant be made up of base portion, pawl portion and head, this pawl portion only has two pawl walls, and pawl cinclides is had on two pawl walls, the push rod be threaded connection with fusant in fusant there are push rod cross-drilled hole and push rod axis hole, push rod cross-drilled hole and push rod axis hole and pawl cinclides form bone grafting window, jointly in order to ensure that Post operation fusion device can together with vertebral fusion.
This programme is achieved by the following technical measures: the threaded fusion cage of this programme, include fusant and the push rod be connected with fusant axial thread in fusant, the feature of this programme rectangle that to be the upright projection of described fusant be with chamfering, the top of this fusant is base portion, bottom is head, is the integrative-structure in pawl portion between base portion and head; Described pawl portion only has front and back two pawl walls of fusant band pawl, lacks two sidewalls, and two described pawl walls have corresponding pawl cinclides; Described head is inverted trapezoidal platform, and there is the head opening parallel with two pawl walls the bottom surface of head, and the both sides of described head inwall head opening are inclined-plane; Have push rod cross-drilled hole to run through push rod at the middle and lower part vertical pusher axis of described push rod, the axis on described push rod top along push rod has push rod axis hole to be connected with push rod cross-drilled hole.The concrete feature of this programme also has, and also has base portion groove at the end face of described fusant base portion.The two side of described fusant base portion also has pawl wall groove.The spacing block set of vertical fusant axis is also had at the dual-side of described pawl cinclides.Described push rod end face along axis also have in hexagonal hole, the axis of this interior hexagonal hole and the dead in line of push rod axis hole.The push rod cross-drilled hole of described push rod is elliptical aperture.The material that described fusant adopts is medical titanium alloy or medical nonmetallic materials.The material that described push rod adopts is medical titanium alloy or medical nonmetallic materials.
The beneficial effect of this programme can be learnt according to describing of such scheme, and due in this scenario, the upright projection of fusant is the rectangle with chamfering, and the top of this fusant is base portion, and bottom is head, is the integrative-structure in pawl portion between base portion and head; Described pawl portion only has front and back two pawl walls of fusant band pawl, lacks two sidewalls, and two described pawl walls have corresponding pawl cinclides; Described head is inverted trapezoidal platform, and there is the head opening parallel with two pawl walls the bottom surface of head, and the both sides of described head inwall head opening are inclined-plane; Have push rod cross-drilled hole to run through push rod at the middle and lower part vertical pusher axis of described push rod, the axis on described push rod top along push rod has push rod axis hole to be connected with push rod cross-drilled hole.This structure, be rectangle due to fusant and have pawl on two pawl walls, this just between easy cone fusant being inserted patient vertebral body in, pawl on pawl wall can ensure that fusant not easily exits, by interior hexagonal hole rotating push-rod, push rod promotes two pawl walls and opens, the height between patient vertebral body cone can be controlled, reach the requirement of height and vertebral body physiologic radian between cone, in addition, bone grafting window can also be formed by the push rod axis hole of push rod and push rod cross-drilled hole through pawl cinclides and input osseous granules between cone, fusant and vertebral body are fixed and merges, this just makes the vertebral body of patient return to normal function.As can be seen here, compared with prior art, have outstanding substantive distinguishing features and significant progress, its beneficial effect implemented also is apparent in the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 is that partial cross structural representation is looked on a left side of Fig. 1.
Fig. 3 is the plan structure schematic diagram of Fig. 2.
In figure, 1 is head, and 2 is pawl portion, and 3 is base portion, and 4 is fusant, 5 is base portion groove, and 6 is push rod, and 7 is push rod cross-drilled hole, and 8 is spacing block set, and 9 is pawl, 10 is pawl cinclides, and 11 is pawl wall groove, and 12 is interior hexagonal hole, and 13 is push rod axis hole, and 14 is head opening.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, below by a detailed description of the invention, and in conjunction with its accompanying drawing, this programme is set forth.
Can be found out by accompanying drawing, the threaded fusion cage of this programme has fusant 4 and the push rod 6 be connected with fusant 4 axial thread in fusant 4, the upright projection of the fusant 4 described in this programme is the rectangle with chamfering, the top of this fusant 4 is base portion 3, bottom is head 1, is the integrative-structure in pawl portion 2 between base portion 3 and head 1.Described pawl portion 2 only has the front and back of fusant 4 with pawl 9 two pawl walls, hollow between two pawl walls, there is no two side, two described pawl walls have corresponding pawl cinclides 10, the spacing block set 8 of vertical fusant 4 axis is also had, in order to limit the position of push rod 6 at the dual-side of described pawl cinclides 10.Described head 1 is inverted trapezoidal platform, and there is the head opening 14 parallel with two pawl walls the bottom surface of head 1, and the both sides of described head 1 inwall head opening 14 are inclined-plane.Also have base portion groove 5 at the end face of described fusant 4 base portion 3, the effect of this groove is in the operation of inserting fusion device, for the connection groove of the operating theater instruments and fusion device that clamp fusion device.The two side of described fusant 4 base portion 3 also has pawl wall groove 11, for improving the elasticity of two pawl wall hypertonics.Push rod cross-drilled hole 7 is had to run through push rod 6 at middle and lower part vertical pusher 6 axis of described push rod 6, this push rod cross-drilled hole 7 is elliptical aperture, axis on described push rod 6 top along push rod 6 has push rod axis hole 13 to be connected with push rod cross-drilled hole 7, described push rod 6 end face along axis also have in hexagonal hole 12, the axis of this interior hexagonal hole 12 and the dead in line of push rod axis hole 13, interior hexagonal hole 12 opens to promote pawl wall with hexagon rotating push-rod 6 in operation.The material that described fusant 4 and push rod 6 adopt can be medical titanium alloy or medical nonmetallic materials, and fusant 4 and the push rod 6 of this detailed description of the invention have employed identical material, are all have employed medical titanium alloy material.
The present invention is not limited in above-mentioned detailed description of the invention, the change that those of ordinary skill in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (8)
1. a threaded fusion cage, include fusant and the push rod be connected with fusant axial thread in fusant, it is characterized in that: the upright projection of described fusant is the rectangle with chamfering, the top of this fusant is base portion, bottom is head, is the integrative-structure in pawl portion between base portion and head; Described pawl portion only has front and back two pawl walls of fusant band pawl, hollow between two pawl walls, and two described pawl walls have corresponding pawl cinclides; Described head is inverted trapezoidal platform, and there is the head opening parallel with two pawl walls the bottom surface of head, and the both sides of described head inwall head opening are inclined-plane; Have push rod cross-drilled hole to run through push rod at the middle and lower part vertical pusher axis of described push rod, the axis on described push rod top along push rod has push rod axis hole to be connected with push rod cross-drilled hole.
2. threaded fusion cage according to claim 1, is characterized in that: also have base portion groove at the end face of described fusant base portion.
3. threaded fusion cage according to claim 1 and 2, is characterized in that: on the two side of described fusant base portion, also have pawl wall groove.
4. threaded fusion cage according to claim 1, is characterized in that: the spacing block set also having vertical fusant axis at the dual-side of described pawl cinclides.
5. threaded fusion cage according to claim 1, is characterized in that: described push rod end face along axis also have in hexagonal hole, the axis of this interior hexagonal hole and the dead in line of push rod axis hole.
6. threaded fusion cage according to claim 1 or 5, is characterized in that: the push rod cross-drilled hole of described push rod is elliptical aperture.
7. threaded fusion cage according to claim 1 and 2, is characterized in that: the material that described fusant adopts is medical titanium alloy or medical nonmetallic materials.
8. threaded fusion cage according to claim 1 or 5, is characterized in that: the material that described push rod adopts is medical titanium alloy or medical nonmetallic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091641.2A CN103908329B (en) | 2014-03-13 | 2014-03-13 | A kind of threaded fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091641.2A CN103908329B (en) | 2014-03-13 | 2014-03-13 | A kind of threaded fusion cage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103908329A CN103908329A (en) | 2014-07-09 |
| CN103908329B true CN103908329B (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410091641.2A Active CN103908329B (en) | 2014-03-13 | 2014-03-13 | A kind of threaded fusion cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103908329B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002045628A1 (en) * | 2000-12-04 | 2002-06-13 | Jackson Roger P | Posterior expandable fusion cage |
| JP2008054710A (en) * | 2006-08-29 | 2008-03-13 | Taeyeon Medical Co Ltd | Transplantation implement for spinal fusion surgery |
| CN201510380U (en) * | 2009-09-29 | 2010-06-23 | 郭谦 | Self-stabilizing anterior cervical interbody fusion cage |
| CN102335051A (en) * | 2011-10-21 | 2012-02-01 | 浙江科惠医疗器械有限公司 | Cervical spine locking and fusion device |
| CN202235781U (en) * | 2011-09-19 | 2012-05-30 | 苏州欣荣博尔特医疗器械有限公司 | Expanding interbody fusion cage |
| CN202235780U (en) * | 2011-08-15 | 2012-05-30 | 傑奎科技股份有限公司 | Vertebral fusion device |
| CN102525624A (en) * | 2011-12-26 | 2012-07-04 | 周建明 | Interbody fusion cage |
| CN103356310A (en) * | 2012-03-28 | 2013-10-23 | 北京爱康宜诚医疗器材股份有限公司 | Adjustable interbody fusion cage |
| CN203369994U (en) * | 2013-07-23 | 2014-01-01 | 青岛高泰新材料有限公司 | Novel lumbar fusion cage structure |
| CN203749546U (en) * | 2014-03-13 | 2014-08-06 | 山东冠龙医疗用品有限公司 | Vertebral fusion device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU762689B2 (en) * | 1999-04-07 | 2003-07-03 | Howmedica Osteonics Corp. | Low profile fusion cage and insertion set |
| US8894712B2 (en) * | 2010-01-11 | 2014-11-25 | Innova Spinal Technologies, Llc | Expandable intervertebral implant and associated surgical method |
-
2014
- 2014-03-13 CN CN201410091641.2A patent/CN103908329B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002045628A1 (en) * | 2000-12-04 | 2002-06-13 | Jackson Roger P | Posterior expandable fusion cage |
| JP2008054710A (en) * | 2006-08-29 | 2008-03-13 | Taeyeon Medical Co Ltd | Transplantation implement for spinal fusion surgery |
| CN201510380U (en) * | 2009-09-29 | 2010-06-23 | 郭谦 | Self-stabilizing anterior cervical interbody fusion cage |
| CN202235780U (en) * | 2011-08-15 | 2012-05-30 | 傑奎科技股份有限公司 | Vertebral fusion device |
| CN202235781U (en) * | 2011-09-19 | 2012-05-30 | 苏州欣荣博尔特医疗器械有限公司 | Expanding interbody fusion cage |
| CN102335051A (en) * | 2011-10-21 | 2012-02-01 | 浙江科惠医疗器械有限公司 | Cervical spine locking and fusion device |
| CN102525624A (en) * | 2011-12-26 | 2012-07-04 | 周建明 | Interbody fusion cage |
| CN103356310A (en) * | 2012-03-28 | 2013-10-23 | 北京爱康宜诚医疗器材股份有限公司 | Adjustable interbody fusion cage |
| CN203369994U (en) * | 2013-07-23 | 2014-01-01 | 青岛高泰新材料有限公司 | Novel lumbar fusion cage structure |
| CN203749546U (en) * | 2014-03-13 | 2014-08-06 | 山东冠龙医疗用品有限公司 | Vertebral fusion device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103908329A (en) | 2014-07-09 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shen Weibo Inventor after: Lu Xuecheng Inventor before: Hao Zaichen Inventor before: Shen Weibo Inventor before: Lu Xuecheng Inventor before: Zhao Tianming |
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| COR | Change of bibliographic data | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shao Weixing Inventor before: Shen Weibo Inventor before: Lu Xuecheng |