CN203107229U - Vertebral cortical bone puncher - Google Patents
Vertebral cortical bone puncher Download PDFInfo
- Publication number
- CN203107229U CN203107229U CN 201220640147 CN201220640147U CN203107229U CN 203107229 U CN203107229 U CN 203107229U CN 201220640147 CN201220640147 CN 201220640147 CN 201220640147 U CN201220640147 U CN 201220640147U CN 203107229 U CN203107229 U CN 203107229U
- Authority
- CN
- China
- Prior art keywords
- vertebral body
- cortical bone
- vertebral
- nail
- end handle
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model belongs to the technical field of medical apparatus and instruments and particularly relates to a vertebral cortical bone puncher applied to anterior cervical transforaminal lumbar interbody fusion and posterior lumbar transforaminal lumbar interbody fusion. Vertebral cortical bones above and below an intervertebral space can be punched point by point so as to increase vertebral blood supply and improve the bone graft fusion rate. The vertebral cortical bone puncher consists of four parts: a semi-conical cone puncturing nail, a front bar, two detachable bolts and a zigzag handle, wherein the diameter of the front bar is gradually increased. The vertebral cortical bone puncher is mainly characterized in that the vertebral cortical bones above and below the intervertebral space are punched by the cone puncturing nail cast at the head end of the front bar, and the bleeding amount of a bone graft bed and the damage degree of the cortical bones can be adjusted by controlling the punching number and the punching depth. Moreover, intra-operative operations can be facilitated by replacing the cone punching nail with different angles and heights during an operation.
Description
Technical field
This utility model relates to technical field of medical instruments, be a kind of for cervical vertebra, lumbar vertebra bone graft fusion through intervertebral space vertebral body card punch, be called for short card punch.
Background technology
Be widely used in throat road and waist posterior approach through the intervertebral space bone graft fusion, and the fusion of intervertebral can reach the purpose of rebuilding spinal column curvature and height, keeping spinal stability, and guarantee the long-term effect of operation.But in case taking place, bone do not merge, the internal fixation failure be can cause in early days, organ and nerve injury closed on, can increase that bone grafting absorbs, the risk of pseudoarticulation formation and the intervertebral of later stage due to not exclusively merging is unstable, sending out because of nervous symptoms needs to go the risk of overhaul technology also can significantly increase again.Therefore the raising of intervertebral fusion rate of bone graft is for keeping surgical effect, reducing complication significance is arranged.Although the application of the strong internal fixation of spinal column makes fusion rate of bone graft significantly increase, intervertebral fusion is because contact surface is less relatively, and the incidence rate that merges failure and pseudarthrosis still can be up to 5%-35%.Growing into of the early stage blood supply of plant bone mass and later stage new vessels is the key factor that promotes the intervertebral bone-graft fusion, and the blood of plant bone mass is for being mainly derived from implant bed.At present mainly be to supply by the blood that curet or scraper are scraped the partial cortical bone, the method that appears spongy bone increases plant bone mass, but because apparatus and vertebral body contact surface are big, often cause bleeding profusely because cortical bone strikes off too much in the art, and during long term follow-up vertebral fracture, plant bone mass sink and the probability that subsides higher.Reducing and go up the blood confession that does not reduce implant bed when the hypocentrum cortical bone destroys in the intervertebral space, is the key that guarantees the intervertebral fusion rate, reduces post-operative complication.
Summary of the invention
This utility model provides a kind of vertebral body cortical bone card punch that cortical bone destroyed but also can increase the confession of plant bone mass blood that not only reduced.
The vertebral body of front end puncture nail 1 and preceding bar 2 integrated castings have guaranteed the intensity of vertebral body puncture nail and firm degree, and can avoid the relevant risk that ruptures in the art to greatest extent.
Vertebral body puncture nail 1 is the design of the half cone bodily form, and vertical is positioned at foremost, and slope is positioned at the inboard, and is most advanced and sophisticated sharp keen, guarantees that it can penetrate hard vertebral body cortical bone.
The half-cone design of vertebral body puncture nail 1 can be avoided the dark purpose that punctured by successively cushioning to reach.
Before bar 2 solid hopkinson bar for being made by steel material, from front end to the back-end the diameter of bar increase gradually, be convenient to the card punch front end and enter intervertebral space.
Front end handle 4 and rear end handle 5 are that plastic cement is disposable moulding, and can be connected with preceding bar 2 rear ends by removable fasteners 3, fix, preceding bar 2 rear end diameters and nail road fixed-site, bar 2 before being convenient to change in the art.
Rear end handle 5 is by the rigid plastics manufacturing, and the design of folding shape is equivalent to increase a balance pivot, used strength in the time of can alleviating patient's operation.
The skin of rear end handle 5 is carved with groove and is sprayed anti-slip rubber, to increase the frictional force between hands and handle, increases the controllability of apparatus.
Consider the difference in cervical vertebra, lumbar vertebra intervertebral space gap, this device can be by adjusting vertebral body puncture nail height, angle and before the length of bar and the product that diameter is designed to the different size model, mainly be applicable to the throat road through intervertebral space bone graft fusion and lumbar vertebral posterior through the intervertebral space bone graft fusion.
Description of drawings
Fig. 1 is structural representation of the present utility model (side sight).
Each position numbering explanation among the figure: 1, vertebral body puncture nail 2, preceding bar 3, removable fasteners 4, front end handle 5, rear end handle.
The specific embodiment
In order to set forth effect of the present utility model better, below by the specific embodiment, and by reference to the accompanying drawings, this utility model is described in further detail.
Embodiment 1: be applied to the throat road through the card punch of intervertebral space bone graft fusion.
The height of vertebral body puncture nail 1 is 2.0mm, is 90 ° of angles with preceding bar; Leading edge with vertebral body puncture nail 1 is starting point, and the diameter of bar 2 is 2.5mm this place before, can reach the vertebral body trailing edge to guarantee that the vertebral body puncture is followed closely, and avoids the vertebral body lower edge to lean on the cortical bone at rear to punch; The later preceding shank diameter of starting point evenly increases, and apart from starting point 16mm with interior diameter all less than 5mm, so that preceding bar enters intervertebral space; The position in the preceding shank diameter that is connected with front end handle 4 and nail road keeps constant, is convenient to change preceding bar.
Embodiment 2 is applied to lumbar vertebral posterior through the card punch of intervertebral space bone graft fusion.
The height of vertebral body puncture nail 1 is 3.0mm, is 90 ° of angles with preceding bar; Leading edge with vertebral body puncture nail 1 is starting point, and the diameter of bar 2 is 3.5mm this place before, can reach the vertebral body trailing edge to guarantee that vertebral body punctures to follow closely; The later preceding shank diameter of starting point evenly increases, and apart from starting point 32mm with interior diameter all less than 7mm, so that preceding bar enters intervertebral space; The position in the preceding shank diameter that is connected with front end handle 4 and nail road keeps constant, is convenient to change preceding bar.
When two kinds of examples are operated, all need thoroughly to remove earlier vertebral pulp, terminal plate of vertebral body cartilage in the intervertebral space.When the vertebral body lower edge in the intervertebral space top punches, vertebral body puncture nail point upward is the drag effect point, the preceding bar that enters intervertebral space is resistance arm, the preceding bar and the intervertebral space below preceding upper limb of vertebral body that enter intervertebral space are fulcrum, the preceding bar and the handle that do not enter intervertebral space are power arm, hand-held handle place is the dynamic action point, and the operator carries out the vertebral body punch operation with downward power.When the vertebral body upper limb below the intervertebral space is punched, vertebral body puncture nail upwards is the drag effect point, the preceding bar that enters intervertebral space is resistance arm, the lower edge intersection point is fulcrum before preceding bar and the intervertebral space upper limb vertebral body, the preceding bar and the handle that do not enter intervertebral space are power arm, hand-held handle place is the dynamic action point, and the operator uses power upwards and carries out the vertebral body punch operation.
The design is simple in structure, novel in design, easy during use, safety, and can control for the damage of vertebral body cortical bone and the blood confession of implant bed with punching quantity by adjusting the punching degree of depth, and then reach the effect that promotes the bone grafting healing, reduces long term complication.
Claims (5)
1. vertebral body cortical bone card punch, be formed by connecting by vertebral body puncture nail, preceding bar, removable fasteners, front end handle and rear end handle five parts, bar can carry out the pointwise punching to hypocentrum cortical bone on cervical vertebra or the interspace of lumbar vertebrae after placing intervertebral space foremost before wherein vertebral body puncture nail was positioned at; Preceding rod rear end has the nail road, fixes by removable fasteners and front end handle, and can change the preceding bar of different size according to operative site; Front end handle and rear end handle are folding shape, are convenient to operate in the art.
2. vertebral body cortical bone card punch according to claim 1 is characterized in that: vertebral body puncture nail is cast into one with preceding bar, and angle is 90 ° between the two.
3. vertebral body cortical bone card punch according to claim 1 is characterized in that: vertebral body puncture nail is the half cone bodily form, and diameter is increased gradually by top to bottom.
4. vertebral body cortical bone card punch according to claim 1, it is characterized in that: preceding bar point diameter increases gradually, with the diameter of front end handle fixed position, length and on the fixed diameter of nail road screw thread constant.
5. vertebral body cortical bone card punch according to claim 1, it is characterized in that: the rear end handle has light engraving groove and anti-slip rubber coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640147 CN203107229U (en) | 2012-11-28 | 2012-11-28 | Vertebral cortical bone puncher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640147 CN203107229U (en) | 2012-11-28 | 2012-11-28 | Vertebral cortical bone puncher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203107229U true CN203107229U (en) | 2013-08-07 |
Family
ID=48887615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220640147 Expired - Fee Related CN203107229U (en) | 2012-11-28 | 2012-11-28 | Vertebral cortical bone puncher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203107229U (en) |
-
2012
- 2012-11-28 CN CN 201220640147 patent/CN203107229U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109199560A (en) | A kind of bracket strutting sustainable bone grafting | |
| CN203619645U (en) | Minimally invasive spine prying reconstructive external fixator | |
| CN101972179B (en) | Adjustable cervical interbody fusion cage | |
| CN103519874B (en) | External fixing device for minimally invasive spine leverage reduction | |
| CN203953882U (en) | Biotype cervical vertebral fusion cage | |
| CN201346235Y (en) | Intervertebral merging machine | |
| CN211862942U (en) | Spinal facet joint interapophysis bone long closes porous screw | |
| CN203107229U (en) | Vertebral cortical bone puncher | |
| CN201168027Y (en) | Kirschner wire | |
| CN203609490U (en) | Prying and pulling device for spine minimally invasive prying and pulling restitution external fixator | |
| CN207012235U (en) | A kind of pedicle of vertebral arch fixed system installation tool | |
| CN203483485U (en) | Autologous bone grafting block trimming die | |
| CN209136833U (en) | A kind of bracket strutting sustainable bone grafting | |
| CN203693716U (en) | Expanding device for vertebral plate | |
| CN204379411U (en) | A kind of vertebra front road locking device | |
| CN203815541U (en) | Arc bone knife for excising ossification focuses in thoracic and lumbar vertebral posterior longitudinal ligaments | |
| CN207886318U (en) | Mortise and tenon type cervical intervertebral fixator | |
| CN106725788A (en) | A kind of wing plate with curved surface internal fixation system for spondylolysis and spondylolithesis of the lumbar spine | |
| CN204581602U (en) | Fusion device and supporting cutter thereof between a kind of screw-in Cervical zygapophyseal joint | |
| CN202198659U (en) | Novel safety sunk-anterior-cervical approach-preventing titanium mesh | |
| CN201658398U (en) | Lumbar intervertebral disc extractor | |
| CN201213854Y (en) | Cervical vertebra intervertebral bone-planting device | |
| CN202526289U (en) | Resetting fixing device in single vertebral body of human body | |
| CN204274557U (en) | A kind of trepan for Thoracolumbar disk anterior decompression | |
| CN102599969A (en) | Human single vertebral internal reduction fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20131128 |