CN203138663U - Vertebral plate-fixing titanium plate without requiring bone grafting - Google Patents
Vertebral plate-fixing titanium plate without requiring bone grafting Download PDFInfo
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- CN203138663U CN203138663U CN2013200954078U CN201320095407U CN203138663U CN 203138663 U CN203138663 U CN 203138663U CN 2013200954078 U CN2013200954078 U CN 2013200954078U CN 201320095407 U CN201320095407 U CN 201320095407U CN 203138663 U CN203138663 U CN 203138663U
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- plate
- titanium plate
- titanium
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- fixing
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- 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
- A61B17/7071—Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor
Abstract
The utility model relates to a vertebral plate-fixing titanium plate without requiring bone grafting, which is provided with a titanium plate, a supporting block made of porous titanium is fixed on the middle section of the titanium plate, and the titanium plate and the supporting block can be integrated or fixed by adopting microscrews or a slot. The vertebral plate-fixing titanium plate has the advantages that since the supporting block made of porous titanium is fixed on the titanium plate, bone grafting is not required in the process of an operation, consequently, the operation steps of the posterior cervical spine formation operation are simplified, the time of the operation is shortened, and the intraoperative wounding and infection chance of patients is greatly reduced; moreover, the supporting block made of porous titanium can guide bone tissues to grow inward, so that the bony union between the titanium plate and the spinal column can be formed, and therefore the strength is high; and meanwhile, since the titanium plate and the supporting block can be fixed in multiple ways, the fixing methods can be conveniently chosen according to actual circumstances in the process of production.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically, is a kind of fixing titanium plate of using of vertebral plate that need not bone grafting.
Background technology
Posterior cervical laminoplasty (also claim posterior cervical open the door operation), created by Japanese scholar, has good effect for treatment multi-segmental cervical spondylosis, cervical ossified posterior longitudinal ligament, cervical spinal canal stenosis, so far existing tens kinds of improvement art formulas, but which kind of art formula no matter all need the vertebral plate that mill leaves is fixed, to prevent the vertebral plate displacement, form the what is called phenomenon of closing the door again, cause spinoneural compressing again, complication such as cause that nervous symptoms increases the weight of.
The mode that vertebral plate is fixed has a variety of, and mainly be divided into three major types: 1. suture is fixed, but fixing insecure, and intensity difference, suture be lax or fracture easily, causes the incidence rate height of closing the door again, because constant intensity is not enough, vertebral plate hinge side fusion rate is low simultaneously; 2. the artificial bone suture is fixed, and adopts hydroxyapatite or calcium phosphate to be supported in the side of opening the door, and then the artificial bone piece is fixed on the vertebral plate with suture, because artificial bone piece matter is crisp, operating difficulties, and suture is fixing not firm, the plant bone mass displacement takes place on the contrary easily, causes spinal compression or bone grafting disunion; 3. the titanium plate is fixed, and the titanium plate is fixed in the vertebral plate side of opening the door with micro-screw, embeds allosome rib section or the artificial bone of appropriate length simultaneously in the side of opening the door.The constant intensity of titanium plate and micro-screw is higher, but complex operation needs with micro-screw plant bone mass to be fixed on the titanium plate before operation, and then it is placed to the operative site of cervical vertebra.Allograph bone is the most frequently used plant bone mass material, but its source is limited, and has the risk of rejection and infection.In art, also can use from the body bone, but can increase extra wound to patient from taking of body bone, and prolong operating time.
At the fixing above-mentioned defective of titanium plate, there was scholar (Tanaka etc.) to propose with hydroxyl apatite bone piece replacement allograph bone or from the body bone in recent years in the world, one hole is arranged in the middle of the hydroxyl apatite bone piece of its design, the titanium plate can be passed through in the middle of the bone piece, simple to operate, and the hydroxyapatite source is sufficient, does not have the risk of rejection and infection, thereby has solved the problem of use titanium plate and allograph bone (or from body bone).Though clinical use has obtained certain effect, hydroxyl apatite bone piece fragility is bigger, and intensity is low, and the systemic time of body is long, and it is cracked that the bone piece takes place in operation and postoperative life-time service process easily, and therefore large-scale application is not arranged at present.
Japan scholar Tani etc. has then designed the titanium plate that comprises square cage, in square cage, can add little of the broken plant bone mass of body owing in art, obtain from the big relatively plant bone mass of the broken plant bone mass of body is easier, easy and simple to handle.But because few from body bone number of blocks, be difficult to guarantee that enough bone amounts fill up cage, therefore still have shortcoming.
In sum, need a kind of fixing titanium plate of using of vertebral plate that need not bone grafting badly.
POROUS TITANIUM technology (claiming metal bone trabecula technology again) is the New Processing that grew up in recent years, has developed again at present multiple technologies, and titanium or titanium alloy are processed into cavernous structure, as plasma spraying, powder sintered or titanium fiber winding.Because the biocompatibility of titanium is fine, form loose structure and can promote skeleton in hole, to grow later, the intensity of POROUS TITANIUM structure is higher in addition, can be used for the fixing of skeleton.Present existing how tame orthopaedics company, Zimmer and Synthes as the U.S. make the spinal column Invasive lumbar fusion device with POROUS TITANIUM, and be applied to clinical, obtain good effect, need not other bone grafting, solved the limited problem of strength problem and plant bone mass source of hydroxyapatite.And yet there are no report about titanium plate and POROUS TITANIUM being combined for fixing vertebral plate at present.
Summary of the invention
The purpose of this utility model is that a kind of fixing titanium plate of using of vertebral plate that need not bone grafting is provided.
For achieving the above object, the technical scheme taked of this utility model is:
A kind of vertebral plate that need not bone grafting is fixed and is used the titanium plate, is provided with the titanium plate, and back-up block is fixedly arranged on the centre portion of described titanium plate.
Described back-up block is to be made by POROUS TITANIUM.
Preferably, the porosity of described POROUS TITANIUM is 30%-90%.
Preferably, described back-up block is cylindric or rectangular-shaped.
Preferably, described titanium plate and back-up block are integrated.
Preferably, described titanium plate is provided with the first back-up block fixing hole, and described back-up block is provided with the second back-up block fixing hole corresponding with the first back-up block fixing hole, and the described first back-up block fixing hole and the second back-up block fixing hole are fixed by the miniature screw thread riveting.
Preferably, the fixed form of described titanium plate and back-up block is bayonet type.
This utility model advantage is:
1, fixes the back-up block that a POROUS TITANIUM is made at the titanium plate, so need not bone grafting again in the operation process, simplified the operating procedure of posterior cervical plastic operation, shortened operating time, farthest reduced wound and infection chance in patient's the art;
2, because POROUS TITANIUM can be grown into by inducting osseous tissue, form the bony union of titanium plate and vertebra, therefore also have the high advantage of intensity;
3, the fixed form of titanium plate and back-up block is various, is convenient to the manufacturing of the present utility model.
Description of drawings
Accompanying drawing 1 is a kind of fixing titanium plate structure sketch map of using of vertebral plate that need not bone grafting of the present utility model.
Accompanying drawing 2 is fixing titanium plate structure sketch maps of using of vertebral plate that another kind of the present utility model need not bone grafting.
The specific embodiment
Below in conjunction with embodiment and with reference to accompanying drawing this utility model is further described.
The Reference numeral and the ingredient that relate in the accompanying drawing are as follows:
1. titanium plate 11. vertebral plate fixed areas
12. lateral mass fixed area 13. back-up block fixed areas
2. back-up block 3. screw holes
41. the first back-up block fixing hole, 42. second back-up block fixing holes
5. miniature screw thread
Embodiment 1
Please refer to Fig. 1, Fig. 1 is a kind of fixing titanium plate structure sketch map of using of vertebral plate that need not bone grafting of the present utility model.Described vertebral plate is fixing to be provided with titanium plate 1 and back-up block 2 with the titanium plate.Described titanium plate 1 is provided with vertebral plate fixed area 11 and the lateral mass fixed area 12 that is positioned at two ends, and the back-up block fixed area 13 that is positioned at centre portion.Be respectively equipped with two screw holes 3 on described vertebral plate fixed area 11 and the lateral mass fixed area 12.On the face of described back-up block fixed area 13 back-up block 2 is arranged fixedly, described back-up block 2 is an integral body with titanium plate 1, and is namely integrated.Described back-up block 2 adopts POROUS TITANIUM to make.
Embodiment 2
Please refer to Fig. 2, Fig. 2 is the fixing titanium plate structure sketch map of using of vertebral plate that another kind of the present utility model need not bone grafting.Described vertebral plate is fixing to be provided with titanium plate 1 and back-up block 2 with the titanium plate.Described titanium plate 1 is provided with vertebral plate fixed area 11 and the lateral mass fixed area 12 that is positioned at two ends, and the back-up block fixed area 13 that is positioned at centre portion.Be respectively equipped with two screw holes 3 on described vertebral plate fixed area 11 and the lateral mass fixed area 12.Four corner locations of described back-up block fixed area 13 respectively are provided with tapped first a back-up block fixing hole 41.An end face of described back-up block 2 is provided with four tapped second back-up block fixing holes 42, described four second back-up block fixing holes 42 are corresponding with the position of four first back-up block fixing holes 41, and be with externally threaded miniature screw thread 5 rivetings fixed by four, and then titanium plate 1 and back-up block 2 are fixed in one.Described back-up block 2 adopts POROUS TITANIUM to make.
Need to prove that described titanium plate 1 can provide at once stability, prevent that vertebral plate from closing the door and form compressing to spinal cord, provide good biomechanics environment for bony union simultaneously.Described back-up block 2 can be cylindric, also can be rectangular-shaped, is used for making open cervical vertebra vertebral plate to form firm domes.The described back-up block 2 preferred POROUS TITANIUM that adopt are made, and mechanical properties such as the intensity of POROUS TITANIUM, elastic modelling quantity can reach by the adjustment to porosity with osseous tissue mates more, to reduce the stress shielding situation; Unique loose structure and inside and outside all coarse surface be conducive to osseous tissue and grow into, make the firm biological fixation of formation between implant and the skeleton, and finally form an integral body, need not to adopt in addition allograph bone, artificial bone, from the body bone; The three-dimensional pore space structure is conducive to that nutrient substance transmits in porous implant and tissue regeneration is rebuild, and can accelerate knitting; The elasticity of titanium and the moulding bioceramic material that is much better than are easy to use in production and processing and the operation; The preferred 30%-90% of POROUS TITANIUM porosity, Young's modulus of elasticity (E) 0.5-20 GPa.Described titanium plate 1 and back-up block 2 are fixed together, and its fixed form can be one-body molded, also can be to fix as embodiment 2 described employing miniature screw threads, and can also be bayonet fixing etc.; When the two adopted miniature screw thread fixedly, the first back-up block fixing hole 41, the second back-up block fixing hole 42 were not limited only to four and be in corner location, as long as can guarantee the two firm combination.
The fixing specification with the titanium plate of vertebral plate of the present utility model is: titanium plate 1 width 5mm, thickness 1mm, vertebral plate fixed area 11 length 10mm, lateral mass fixed area 12 length 10mm, back-up block fixed area 13 length 8mm, 10mm, 12mm or 14mm; Miniature screw thread 5 diameter 2.5mm, length 6mm, 8mm or 10mm; Back-up block 2 thickness 2mm or 3mm.Above-mentioned specification is preferable parameter, admittedly be not limited only to this.
The fixing using method with the titanium plate of vertebral plate of the present utility model is: in the posterior cervical laminoplasty, after vertebral plate left by mill, vertebral plate fixed area 11 and the lateral mass fixed area 12 of titanium plate 1 are alignd with vertebral plate and lateral mass respectively, and guarantee back-up block 2 towards vertebral plate one side, use then corresponding screw by screw hole 3 fixedly titanium plate 1 get final product.
Use this vertebral plate to fix and need not bone grafting again with the titanium plate, can simplify the operating procedure of posterior cervical plastic operation, shorten operating time, at utmost reduce wound and infection chance in patient's the art, and higher constant intensity and better therapeutic effect is provided.Because the sickness rate of modern society's cervical vertebra is higher, the posterior cervical plastic operation is used also more and more in clinical, so the present invention has social benefit and economic benefit widely.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this utility model principle; can also make some improvement and replenish, these improvement and replenish and also should be considered as protection domain of the present utility model.
Claims (7)
1. a vertebral plate that need not bone grafting is fixing uses the titanium plate, is provided with the titanium plate, it is characterized in that back-up block is fixedly arranged on the centre portion of described titanium plate.
2. vertebral plate according to claim 1 is fixing uses the titanium plate, it is characterized in that described back-up block is to be made by POROUS TITANIUM.
3. vertebral plate according to claim 2 is fixing uses the titanium plate, it is characterized in that the porosity of described POROUS TITANIUM is 30%-90%.
4. vertebral plate according to claim 2 is fixing uses the titanium plate, it is characterized in that described back-up block is cylindric or rectangular-shaped.
5. use the titanium plate according to the arbitrary described vertebral plate of claim 1-4 is fixing, it is characterized in that described titanium plate and back-up block are integrated.
6. according to the fixing titanium plate of using of the arbitrary described vertebral plate of claim 1-4, it is characterized in that, described titanium plate is provided with the first back-up block fixing hole, described back-up block is provided with the second back-up block fixing hole corresponding with the first back-up block fixing hole, and the described first back-up block fixing hole and the second back-up block fixing hole are fixed by the miniature screw thread riveting.
7. use the titanium plate according to the arbitrary described vertebral plate of claim 1-4 is fixing, it is characterized in that the fixed form of described titanium plate and back-up block is bayonet type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200954078U CN203138663U (en) | 2013-03-04 | 2013-03-04 | Vertebral plate-fixing titanium plate without requiring bone grafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200954078U CN203138663U (en) | 2013-03-04 | 2013-03-04 | Vertebral plate-fixing titanium plate without requiring bone grafting |
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| Publication Number | Publication Date |
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| CN203138663U true CN203138663U (en) | 2013-08-21 |
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| CN2013200954078U Expired - Fee Related CN203138663U (en) | 2013-03-04 | 2013-03-04 | Vertebral plate-fixing titanium plate without requiring bone grafting |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103860245A (en) * | 2014-03-22 | 2014-06-18 | 常州市康辉医疗器械有限公司 | Anti-withdrawing stable cervical vertebra posterior single-opening door sheet nailing system |
| CN105055058A (en) * | 2015-09-02 | 2015-11-18 | 北京爱康宜诚医疗器材股份有限公司 | Artificial vertebral lamina and vertebral canal expansion tool |
| CN105055057A (en) * | 2015-09-02 | 2015-11-18 | 北京爱康宜诚医疗器材股份有限公司 | Artificial vertebral lamina |
| CN105078622A (en) * | 2015-09-02 | 2015-11-25 | 北京爱康宜诚医疗器材股份有限公司 | Vertebral body structure |
| CN105266877A (en) * | 2015-11-26 | 2016-01-27 | 广州聚生生物科技有限公司 | Spinal column vertebral plate open-door fixing system |
| CN107693170A (en) * | 2017-09-30 | 2018-02-16 | 北京爱康宜诚医疗器材有限公司 | Vertebral plate prosthese |
| CN110353793A (en) * | 2019-07-26 | 2019-10-22 | 北京市春立正达医疗器械股份有限公司 | Posterior cervical follows closely board fixer |
-
2013
- 2013-03-04 CN CN2013200954078U patent/CN203138663U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103860245A (en) * | 2014-03-22 | 2014-06-18 | 常州市康辉医疗器械有限公司 | Anti-withdrawing stable cervical vertebra posterior single-opening door sheet nailing system |
| CN105055058A (en) * | 2015-09-02 | 2015-11-18 | 北京爱康宜诚医疗器材股份有限公司 | Artificial vertebral lamina and vertebral canal expansion tool |
| CN105055057A (en) * | 2015-09-02 | 2015-11-18 | 北京爱康宜诚医疗器材股份有限公司 | Artificial vertebral lamina |
| CN105078622A (en) * | 2015-09-02 | 2015-11-25 | 北京爱康宜诚医疗器材股份有限公司 | Vertebral body structure |
| CN105266877A (en) * | 2015-11-26 | 2016-01-27 | 广州聚生生物科技有限公司 | Spinal column vertebral plate open-door fixing system |
| CN107693170A (en) * | 2017-09-30 | 2018-02-16 | 北京爱康宜诚医疗器材有限公司 | Vertebral plate prosthese |
| CN110353793A (en) * | 2019-07-26 | 2019-10-22 | 北京市春立正达医疗器械股份有限公司 | Posterior cervical follows closely board fixer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |