CN107693169A - Wedged accommodating intraocular centrum - Google Patents
Wedged accommodating intraocular centrum Download PDFInfo
- Publication number
- CN107693169A CN107693169A CN201710835948.2A CN201710835948A CN107693169A CN 107693169 A CN107693169 A CN 107693169A CN 201710835948 A CN201710835948 A CN 201710835948A CN 107693169 A CN107693169 A CN 107693169A
- Authority
- CN
- China
- Prior art keywords
- support platform
- screw
- support block
- centrum
- accommodating intraocular
- 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
- 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
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
- A61F2/447—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
-
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30622—Implant for fusing a joint or bone material
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention provides a kind of Wedged accommodating intraocular centrum, belongs to medical instruments field.Including upper and lower two pieces of support platforms and middle sliding support block, there is the bone grafting groove of insertion among the support platform and sliding support block, the support platform is fitted and fixed with titanium alloy structure, there is screw on support platform and titanium alloy structure, for artificial vertebral body to be fixed on into corpus vertebrae with screw fit；The support platform has fixing hole close to middle slip support block position, and there is chute fixing hole both sides；The sliding support block be H types, both ends limited position mechanism, in the chute in embedded support platform, screw is can be inserted into the fixing hole, locking slidably supports block and support platform.The present invention is applied in operation, meet optimal proper height by slidably supporting the selection of tile height, suitable tonicity between backbone can not only be maintained, and there is initial stability well, and permanent stablizing effect is reached by bone grafting fusion, operation technique is greatly simplify, reduces postoperative bad complication.Therefore, the present invention simplifies operating procedure while accomplishing fully to merge, and shortens operating time, improves treatment curative effect.
Description
Technical field
The present invention provides a kind of Wedged accommodating intraocular centrum, belongs to medical instruments field.
Background technology
Vertebral resection or Partial Resection operation are a kind of conventional surgical technics in spinal surgery.Cut in the middle part of cervical vertebral body
Except with bone grafting fusion early in the 1960s Bailey Badaley just in clinical practice, treat based on cervical vertebra comminuted fracture
Cervical spondylosis, cervical vertebra is fixed after bone grafting, prevent cervical vertebra disfiguration.Later Norrell (1970), middle wild (1971)
It is applied to the treatment that fracture of cervical spine merges tetraplegia patient after Tangshan Earthquake with Duan Guosheng, cuts off the compressing thing in front of neck marrow
And carry out bone grafting and fix.But more plane cervical spondylopathys and ossification of cervical posterior longitudinal ligament are treated in the middle part of the multiple centrums of excision, then is
What (1976) and Manabe etc. such as Japanese scholars Sakau etc. (1976), Yamaura (1977) were more early carried out, referred to as centrum time is complete
Resection (subtotal vertebrectomy or subtotal spondylectomy), Saunder etc. (1991) are referred to as
Resection (central corpectomy) in the middle part of centrum.At present, this operation application is more universal in the world, be it is a kind of general and into
Ripe modus operandi.For more centrums and the cervical spondylopathy of more intervertenral space planes, this method is compared with Cloward methods and Smith Robinson
Method decompression is thorough, good the effect of wide property laminectomy, is still a kind of to receive and recognize for numerous doctors and patient at present
Can excellent modus operandi.
But after vertebral resection, the Cranial defect position stayed is usually the titanium net filling support that bone graft is filled out in,
Additional one block of steel plate be used for fix, such a mode is way current at present, not only cumbersome, and titanium net both ends with up and down
Centrum contact is not abundant enough, influences syncretizing effect, simultaneously because titanium net modular ratio sclerotin is high too much, titanium net easily occurs
Settle in centrum, cause Unstable internal fixation, so as to pressuring nerve blood vessel, serious complication occur.
Therefore, if a kind of device, not only modulus of elasticity is suitable with bone tissue, can effectively anti-locking apparatus be deposited to just
In normal centrum, and be very easy to installation, the Bony union effect after installation is very good, then can not only simplify operation technique,
Shorten operating time, improve operative effect, and the medical expense of patient can be reduced, this would is that doctor and patient are common
Gospel.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of Wedged accommodating intraocular centrum, are cut off in spinal vertebral
After can substitute excision centrum be used for merge fixation.
A kind of Wedged accommodating intraocular centrum, including upper and lower two pieces of support platforms and middle sliding support block, it is described
There is the bone grafting groove of insertion among support platform and sliding support block, the support platform is fitted and fixed with titanium alloy structure, supported
There is screw on platform and titanium alloy structure, for artificial vertebral body to be fixed on into corpus vertebrae with screw fit；
The support platform has fixing hole close to middle slip support block position, and there is chute fixing hole both sides；The slip
Support block is H types, both ends limited position mechanism, is embedded in the chute in support platform, and screw, locking are can be inserted into the fixing hole
Slidably support block and support platform.
In order to prevent artificial vertebral body from settling in normal vertebral body, upper and lower support platform and slidably support block material use with
The suitable medical peek materials of skeleton modulus of elasticity.The sectional area of support platform up and down of artificial vertebral body is as far as possible close to human body
The size of centrum cross section, it is also stronger that contact surface bears more greatly pressure, is also less susceptible to settle.Set up separately with fixing screws contact site
Titanium alloy structure is counted into, prevents damage of the screw of high elastic modulus to peek materials.The fixed screw also all uses
Medical titanium alloy material.
In order to improve the syncretizing effect of artificial vertebral body, artificial vertebral body leaves big bone grafting groove up and down among support platform,
The centrum bone tissue for being advantageous to artificial vertebral body both ends merges with the bone tissue of bone grafting groove, forms an entirety.
In order to adapt to different vertebral heights, artificial vertebral body of the present invention one Wedged in upper and lower support platform medium design
Block is slidably supported, when sliding support block is wedged between support platform, support platform will separate and increase height.Using not
Level sliding support block can make artificial pyramidal system reach preferable height, so as to adapt to the requirement of different centrums.
In order to adapt to the normal physiological radian of backbone, the support platform up and down of artificial vertebral body respectively has 5 degree of gradient, manually
The front-back of centrum is also cambered surface, suitable with physiologic radian, can so increase artificial vertebral body flat surface and normal vertebral body face up and down
Contact is abundant, effectively provides fusion rate and stability, and can avoid causing iatrogenic spinal canal stenosis.
In order to realize support and stabilization of the sliding support block between support platform, the both sides of support platform are designed with cunning
Groove, it is coupled, is prevented between support platform and the sliding support block of wedging with slidably supporting the position-limit mechanism of both sides projection of block
Side it is mobile or reverse.The screw inserted in addition from fixing hole, the nut of screw cover sliding support block and support simultaneously
Platform, as shown in Figure 3.Or sliding support block upper and lower side has earflap, has through hole to be overlapped with fixing hole on earflap.By screw and
The combination of nut or sleeve pipe, prevent the abjection of wedging sliding support block.
Limited location device, the support between support platform and Wedged sliding support block up and down of the artificial vertebral body system of the present invention
There is screw to fix between platform and corpus vertebrae, artificial pyramidal system is formed a stable entirety.The artificial vertebra of the present invention
Body, excision centrum can be substituted to be used to merge fixation after spinal vertebral excision.The artificial vertebral body system can be according to excision centrum
The height of itself highly is adjusted, support platform range of fusion is wide, and bone grafting slot structure is big, syncretizing effect is good, and operation technique is simple
Change, fixed fusion long-term effect is good.
Brief description of the drawings
Fig. 1, the decomposing schematic representation of Wedged accommodating intraocular centrum.
Fig. 2, the side view combination schematic diagram of Wedged accommodating intraocular centrum.
Fig. 3, Wedged accommodating intraocular centrum face combination schematic diagram.
Fig. 4, another artificial vertebral body decomposition texture schematic diagram.
Fig. 5, another artificial vertebral body overall structure side view.
Fig. 6, another artificial vertebral body overall structure front view.
In figure, 1- screws, 2- titanium alloy structures, 3- support platforms, 4- screws, 5- fixing holes, 6- sliding support blocks, 7-
Bone window, 8- position-limit mechanisms, 9- bone grafting grooves, 10- jump rings, 11- chutes, 12- supporters.
Embodiment
Embodiment 1, Fig. 1 are that a kind of brand-new Wedged of the present invention can adjust one embodiment that intervertebral fixes fusion device
Structural representation.
Present invention offer is a kind of can to substitute excision centrum to be used to merge fixed artificial vertebral body after spinal vertebral excision
Fixed system.As shown in Figure 1.A kind of Wedged accommodating intraocular centrum, including upper and lower two pieces of support platforms 3 and middle slip
There are the bone grafting groove 9 of insertion, the support platform 3 and titanium alloy knot among support block 6, the support platform 3 and sliding support block 6
Structure 2 is fitted and fixed with, and is had screw 4 on support platform 3 and titanium alloy structure 2, is fixed on artificial vertebral body for coordinating with screw 4
On corpus vertebrae；
The support platform 3 has fixing hole 5 close to middle slip support block position, and there is chute 11 both sides of fixing hole 5；Institute
It is H types to state sliding support block 6, both ends limited position mechanism 8, is embedded in the chute 11 in support platform, can in the fixing hole 5
Insert screw, locking sliding support block 6 and support platform 3.
As shown in Fig. 2 there is detent projection on the surface of support platform 3, the frictional force with hone lamella above and below centrum can be increased, up and down
Respectively there is 5 degree of gradient in support platform face, and whole pyramidal system is camber, suitable with physiologic radian, can increase artificial vertebral body
System platform face contacts fully with normal vertebral body face, effectively provides fusion rate and stability, and can avoid causing iatrogenic canalis spinalis
Narrow, centre is bone grafting groove 9, is merged for bone grafting.It is titanium alloy structure 2 with screw contact portion, titanium alloy structure passes through different
Body is firmly chimeric with support platform.As shown in Figure 2.There is bone window 7 both sides of sliding support block 6 in addition, are easy to both sides vertebral bone
Tissue is grown into.
The bone grafting groove and the bone grafting groove of upper and lower support platform 3 of Wedged sliding support block 6 connect, and support platform both ends are each
There are two pieces of screws to be fixed on the human normal centrum after cutting off.
There is neck in the titanium alloy structure, can be inserted into the screw that the clamping of jump ring 10 is squeezed into corpus vertebrae.Described is upper
Lower support platform can be further spacing by the cooperation between nose bar and groove.
The present invention is applied in operation, meets optimum height by slidably supporting the selection of tile height, can not only tie up
Suitable tonicity between backbone is held, and has initial stability well, and permanent stablizing effect, pole are reached by bone grafting fusion
Big simplifies operation technique, reduces postoperative bad complication.Therefore, the present invention is while accomplishing fully to merge, letter
Change operating procedure, shorten operating time, improve treatment curative effect.
Embodiment 2, a kind of artificial vertebral body system, there is different height specifications, can meet needed for different individuals.
As shown in figure 4, it includes the supporter of the bone grafting groove with up/down perforation, the upper and lower ends and titanium of the supporter
Alloy structure is fitted and fixed with, and is had screw on the supporter and titanium alloy structure, is fixed on artificial vertebral body for inserting screw
On corpus vertebrae.
As shown in figure 5, the upper and lower surface of supporter has detent projection, the friction with hone lamella above and below corpus vertebrae can be increased
Power.There is bone grafting groove the centre of the supporter, is merged for bone grafting.It is titanium alloy structure with screw contact portion, titanium alloy knot
Structure is chimeric with support body phase by obform body.The upper and lower surface of supporter respectively has 5 degree of gradient, and whole pyramidal system is arc
Type, it is suitable with physiologic radian, artificial vertebral body upper and lower surface can be increased and contacted with normal vertebral body face fully, effectively provide fusion rate and
Stability, and can avoid causing iatrogenic spinal canal stenosis.
As shown in fig. 6, supporter front sees that overall be in " work " font, upper and lower surface is relatively roomy, can increase and up and down
The contact surface of centrum, collapsing for artificial vertebral body system is prevented, center section is relatively narrow and small, readily replaceable excision pyramidal portion.Institute
There is bone window the both sides for stating supporter, are easy to both sides centrum bone tissue to grow into.
There is neck in the titanium alloy structure, can be inserted into the screw that jump ring clamping is squeezed into corpus vertebrae.The supporter
It is made up of medical embedded level PEEK materials, the titanium alloy structure and screw are formed using medical embedded level titanium alloy.
Claims (10)
- A kind of 1. Wedged accommodating intraocular centrum, it is characterised in that the slip including upper and lower two pieces of support platforms (3) and centre There are the bone grafting groove (9) of insertion, the support platform (3) among support block (6), the support platform (3) and sliding support block (6) It is fitted and fixed with titanium alloy structure (2), has screw (4) on support platform (3) and titanium alloy structure (2), for matches somebody with somebody with screw (1) Artificial vertebral body is fixed on corpus vertebrae by conjunction；The support platform (3) has fixing hole (5) close to middle slip support block (6) position, and there is chute (11) fixing hole both sides； The sliding support block (6) is H types, both ends limited position mechanism (8), is embedded in the chute (11) in support platform, the fixation Screw, locking sliding support block (6) and support platform (3) are can be inserted into hole (5).
- 2. accommodating intraocular centrum according to claim 1, it is characterised in that the support platform (3) up and down and slip The material of support block (6) uses medical peek materials, and fixed screw uses medical titanium alloy material.
- 3. accommodating intraocular centrum according to claim 1 or 2, it is characterised in that the support platform (3) up and down respectively has 5 degree of gradient, the front-back of artificial vertebral body is also cambered surface, suitable with physiologic radian.
- 4. accommodating intraocular centrum according to claim 1 or 2, it is characterised in that the spiral shell of insertion from fixing hole (5) Nail, the nut of screw cover sliding support block and support platform, by the combination of screw and nut or sleeve pipe, anti-sliding stop simultaneously The abjection of support block.
- 5. accommodating intraocular centrum according to claim 1 or 2, it is characterised in that sliding support block (6) upper and lower side has ear The wing, there is through hole to be overlapped with fixing hole (5) on earflap, by the combination of the screw and nut or sleeve pipe that are inserted from fixing hole, prevent The abjection of sliding stop support block.
- 6. accommodating intraocular centrum according to claim 1 or 2, it is characterised in that the surface of the support platform (3) has Detent projection.
- 7. accommodating intraocular centrum according to claim 1 or 2, it is characterised in that there is bone the sliding support block both sides Window (7).
- 8. accommodating intraocular centrum according to claim 1 or 2, it is characterised in that have card in the titanium alloy structure (2) Groove, it can be inserted into the screw that jump ring (10) clamping is squeezed into corpus vertebrae.
- 9. accommodating intraocular centrum according to claim 1 or 2, it is characterised in that described support platform up and down passes through Cooperation between nose bar and groove is further spacing.
- A kind of 10. Wedged artificial vertebral body, it is characterised in that include the supporter of the bone grafting groove (9) with up/down perforation, it is described The upper and lower ends of supporter (12) are fitted and fixed with titanium alloy structure (2), are had on the supporter (12) and titanium alloy structure (2) Screw, artificial vertebral body is fixed on corpus vertebrae for inserting screw, the upper and lower surface of the supporter respectively has 5 degree of inclination Spend, have detent projection in the upper and lower surface of the supporter, supporter is camber, suitable with physiologic radian, the both sides of supporter There is bone window (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835948.2A CN107693169A (en) | 2017-09-16 | 2017-09-16 | Wedged accommodating intraocular centrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835948.2A CN107693169A (en) | 2017-09-16 | 2017-09-16 | Wedged accommodating intraocular centrum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107693169A true CN107693169A (en) | 2018-02-16 |
Family
ID=61172704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710835948.2A Pending CN107693169A (en) | 2017-09-16 | 2017-09-16 | Wedged accommodating intraocular centrum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107693169A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350314A (en) * | 2018-12-18 | 2019-02-19 | 广州华钛三维材料制造有限公司 | A kind of height-adjustable artificial vertebral body |
| CN113520678A (en) * | 2021-06-30 | 2021-10-22 | 右江民族医学院附属医院 | Titanium mesh bone grafting fixing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1713867A (en) * | 2002-12-17 | 2005-12-28 | 马斯医药技术股份公司 | Intervertebral implant with tiltable joint parts |
| CN1713866A (en) * | 2002-12-17 | 2005-12-28 | 马斯医药技术股份公司 | Intervertebral implant |
| CN105361981A (en) * | 2015-12-09 | 2016-03-02 | 北京市富乐科技开发有限公司 | Cervical fusion apparatus |
| US20160106550A1 (en) * | 2009-03-30 | 2016-04-21 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
| CN105796214A (en) * | 2016-03-08 | 2016-07-27 | 吴志宏 | Porous metal cervical interbody fusion cage for directionally and slowly releasing rhBMP-2 |
| US9700425B1 (en) * | 2011-03-20 | 2017-07-11 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| CN207886317U (en) * | 2017-04-25 | 2018-09-21 | 中国人民解放军第二军医大学第二附属医院 | A kind of novel assembly type artificial vertebral body |
-
2017
- 2017-09-16 CN CN201710835948.2A patent/CN107693169A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1713867A (en) * | 2002-12-17 | 2005-12-28 | 马斯医药技术股份公司 | Intervertebral implant with tiltable joint parts |
| CN1713866A (en) * | 2002-12-17 | 2005-12-28 | 马斯医药技术股份公司 | Intervertebral implant |
| US20160106550A1 (en) * | 2009-03-30 | 2016-04-21 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
| US9700425B1 (en) * | 2011-03-20 | 2017-07-11 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| CN105361981A (en) * | 2015-12-09 | 2016-03-02 | 北京市富乐科技开发有限公司 | Cervical fusion apparatus |
| CN105796214A (en) * | 2016-03-08 | 2016-07-27 | 吴志宏 | Porous metal cervical interbody fusion cage for directionally and slowly releasing rhBMP-2 |
| CN207886317U (en) * | 2017-04-25 | 2018-09-21 | 中国人民解放军第二军医大学第二附属医院 | A kind of novel assembly type artificial vertebral body |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350314A (en) * | 2018-12-18 | 2019-02-19 | 广州华钛三维材料制造有限公司 | A kind of height-adjustable artificial vertebral body |
| CN109350314B (en) * | 2018-12-18 | 2023-03-14 | 广州华钛三维材料制造有限公司 | But height-adjusting's artificial centrum |
| CN113520678A (en) * | 2021-06-30 | 2021-10-22 | 右江民族医学院附属医院 | Titanium mesh bone grafting fixing device |
| CN113520678B (en) * | 2021-06-30 | 2024-03-26 | 右江民族医学院附属医院 | Titanium net bone grafting fixing device |
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Application publication date: 20180216 |
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