CN103720527A - Joint fusion cage - Google Patents
Joint fusion cage Download PDFInfo
- Publication number
- CN103720527A CN103720527A CN201410038103.7A CN201410038103A CN103720527A CN 103720527 A CN103720527 A CN 103720527A CN 201410038103 A CN201410038103 A CN 201410038103A CN 103720527 A CN103720527 A CN 103720527A
- Authority
- CN
- China
- Prior art keywords
- tray
- hole
- fusion device
- joint fusion
- alar part
- 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.)
- Granted
Links
Images
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
-
- 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
Abstract
The invention discloses a joint fusion cage. The fusion cage comprises a supporting block and a lock screw, wherein the supporting block is a wedge block, and one or more fusion holes are formed in the supporting block; the lock screw is used for fixing the supporting block. According to the joint fusion cage, the fusion holes are formed in the supporting block, so a cancellous bone can be conveniently implanted, or bone adjacent to the implanted part can grow in, so that bone and an implant can be fused, fixation and fusion can be realized in one operation, and the cancellous bone is stressed by adopting the wedge block structure, and the fusion can be facilitated.
Description
Technical field
The present invention relates to joint fusion field, in especially merging with extensive region pivot Lateral mass joint, the structure of implant is relevant.
Background technology
Atlantoaxial dislocation (atlantoaxial dislocation, AD) refer to that the first segment (atlas) of cervical vertebra, the joint between second section (dentata) lose normal relationship in a mutual action, thereby cause oblongata, upper cervical compression of spinal cord, vertebral artery trend and hemodynamics change; Gently occur dizzy or faint, in serious situation, can cause quadriplegia, even respiratory failure and death.Because it is disabled, fatality rate is high, atlantoaxial dislocation is worldwide one of the focus of spinal surgery research and difficult point.
Articulatio atlantoepistrophica fusion is the most effectual way of current generally acknowledged treatment atlantoaxial dislocation.Articulatio atlantoepistrophica Posterior interbody fusion exposes convenient and working place is large, and clinical practice is wider.This operation method comprises interior fixing and two contents of bone-graft fusion.Interior fixedly referring to adopts internal fixation device to comprise steel wire, interlaminar clamp, pedicle screw and nail-plate (or rod).Bone-graft fusion refers to by posterior approach bone grafting between atlas (C1) cantle and dentata (C2) vertebral plate.The key criterion of this successful surgery is " whether bone grafting merge ".The apparatus research and development of articulatio atlantoepistrophica fusion all the time round " fixing, merge " these two targets.From nineteen thirty-nine Gallie, reported with steel wire since the fixing articulatio atlantoepistrophica fusion method of colligation between the dentata cantle of extensive region, clinical practice through more than 60 years, update, in the dentata of extensive region, technique for fixing has had significant progress, has occurred the technology such as C1, C2 interarticular screw, way of escape C1-C2 nail-plate, C1-C2 nail rod.After above-mentioned interior fixing, then implement bone grafting operation (adopting bone-graft fusion between way of escape extensive region, dentata plate).
There is following shortcoming in above-mentioned technology:
1, operating procedure is many.This operation method need to could be implemented after extensive region dentata completes interior fixing.Can the bone that complete articulatio atlantoepistrophica merge, and whether the internal fixation operation that depends on to a great extent early stage is strong.
2, biomechanics is undesirable.Bone grafting part in bone-graft fusion, rear plant bone mass or bone grafting grain bear the tensile stress of biomechanics, and tensile stress is (contrary, compressive stress promotes bone to merge) that is unfavorable for fusion; The bone grafting distance simultaneously needing, creeping substitution distance, the bone grafting amount needing large (getting ilium district complication increases);
3, special case cannot complete.Lu Zhui district bone sex deviation or arch of posterior atlas lack as situation under (such as grow lack as or excision after), just cannot complete this operation.
Summary of the invention
For problems of the prior art, object of the present invention is for providing a kind of joint fusion device that can only learn well by once performed the operation fixing fusion and fusion Biological Strength.
For achieving the above object, technical scheme of the present invention is as follows:
A joint fusion device, comprises tray and lock-screw, and described tray is a wedge, is provided with one or more fusions hole on described tray, and described lock-screw is for fixing described tray.
Further, also comprise alar part, described alar part in the form of sheets, connects bottom one side that is arranged on described tray, and the section together with described tray is L-type, is provided with for the through hole through described lock-screw on described tray and described alar part.
Further, the lamellar body that described alar part is uniform thickness, and bottom is arc.
Further, described alar part connects the bottom of the thicker one side that is arranged on described tray, and comprises two that two tops link together.
Further, in the described thicker one side of described tray, be provided with upward the first through hole through upper proximal surface, be provided with the second through hole on described two of described alar part.
Further, described the first through hole and described the second through hole are unthreaded hole.
Further, described alar part and described tray are integrally formed, and the lateral surface of described alar part is concordant with the described thicker one side of described tray.
Further, on described tray, be also provided with and control hole, described in control hole and be positioned in the described thicker one side of described tray.
Further, described fusion Kong Weiyi macropore, the upper and lower surface of described tray is run through in described fusion hole.
Further, described tray adopts 3D printing technique to make.
The present invention compared with prior art, on tray of the present invention, arrange and merge hole, can conveniently insert spongy bone or grow into for the adjacent sclerotin of implant site, thereby realize the fusion of bone and implant, once operation realizes fixing and merges, and adopt wedge structure, and make spongy bone compression chord, be beneficial to fusion.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Fig. 1 is the structural representation of joint fusion device of the present invention;
Fig. 2 is the using state schematic diagram of joint fusion device of the present invention.
The specific embodiment
The exemplary embodiments that embodies feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various variations on different embodiment, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing be when the use that explain in itself, but not in order to limit the present invention.
Joint fusion device of the present invention merges for extensive region pivot Lateral mass joint, also can be applicable to the joint fusion at other positions that structure is close.As shown in Figure 1, joint fusion device of the present invention comprises tray 1, alar part 2 and lock-screw 3,4.The orientation such as upper and lower described in the application is the present invention's residing location positioning while being applied to stand according to human body after human body.The specification of this fusion device by height 4mm to 10mm all can, according to patient's preoperative CT scan, measure, according to actual Lateral mass joint gap length, carry out 3D printing.
Tray 1 is a wedge, basic is hexahedron structure (six faces can be plane or curved surface), the cross section of tray 1 in two orthogonal vertical planes is respectively trapezoidal and rectangle (certain limit of this trapezoidal and rectangle or be curve), and upper and lower surface is fitted respectively needs two fixing osseous parts.Tray 1 is between the pivot lateral mass of implant into body extensive region time, and thicker one side 11 is positioned at front portion (positive with respect to human body), and thinner one side 12 is positioned at rear portion (with respect to the human body back side).Conventionally, the height of thicker one side 11 is 6-8 millimeter, and thinner one side 11 is highly 4-6 millimeter, width 12 millimeter of tray 1, length 15 millimeter.
On tray 1, be provided with one or more fusions hole 14, in this fusion hole 14, can insert spongy bone, also can be emptying aperture, determine according to actual needs.In the present embodiment, merging hole 14 is a macropore, merges the upper and lower surface that tray 1 is run through in hole 14.
In the thicker one side 11 of tray 1, be provided with upward the first through hole 13 through upper proximal surface, this first through hole 13 is unthreaded hole (also can be set to as required screwed hole).In the present embodiment, the first through hole 13 is two, for through screw 3, joint fusion device of the present invention is fixed on atlas 5, and as shown in Figure 2, the first through hole 13 is tiltedly worn angle and determined as required.The setting of the first through hole 13 can guarantee completing smoothly of special case.Lu Zhui district bone sex deviation or arch of posterior atlas lack as situation under (such as grow lack as or excision after), if this first through hole 13 is not set, just cannot complete this operation.This screw 3 is selected 3 millimeters of diameters, the specification that length is 14 millimeters conventionally.
On tray 1, be also provided with and control hole 15, control hole 15 and be positioned in the thicker one side 11 of tray 1, namely with the entrance of the first through hole 13 on same operating surface, be convenient to fusion device to control operation.In the present embodiment, this is controlled hole 15 and has cross structure.
On alar part 2, be provided with the second through hole 23, the second through holes 23 and be positioned at the first through hole 13 belows.This second through hole 23 is unthreaded hole (also can be set to as required screwed hole), and quantity is two (in every a slice 21,22, a hole 23 being set), and for passing screw 4, screw 4 is fixed on joint fusion device of the present invention on the vertebral body of dentata 6.This screw 4 is selected 3 millimeters of diameters, the specification that length is 10 millimeters conventionally.
Joint fusion device of the present invention adopts 3D printing technique to make, adopt titanium metal powder as raw material by EBM(Electron Beam Melting electron beam melting) technology makes 3D product.The key step of making spinal column implants of 3D printing technique comprises: 1, by the spinal column implants model data input EBM Special Equipment designing; 2, titanium alloy powder is injected to EBM Special Equipment; 3, start EBM Special Equipment, through the required finished product of 3D print routine output.The 3D printed product that adopts EBM technology to make has three important speciality with desirable spinal column implants close association: one is for making the object of special shape, any complex figure that computer design goes out all can be through the disposable material object that is printed as of Special Equipment, and this speciality makes to make the implants meet anatomy of spine structure or to meet individual characteristic and becomes a reality; Its two short-term training that is production can obtain required implants in several hours, made the customization of individual spinal column implants become possibility; It three can make hole, and this hole can be grown into for the adjacent sclerotin of implant site, thereby realizes the fusion of bone and implants.Electron beam melting technology produces the titanium alloy porous type metal bone implant material (being called for short TTM) that metallic particles heap cast becomes, and all extremely approaches nature bone trabecularism on structure and mechanical characteristic.The average pore size of material is about 650um, porosity 40%～95%, and pressure-proof elasticity modulus is 0.5～1.3Gpa, between spongy bone and cortical bone, has excellent bio-compatibility and mechanical characteristic, and has very high friction stability with bone.Therefore as bone implant material, TTM can provide structural support to osseous tissue, and meeting physiological stress distributes, there is no stress shielding, its column structure is internal mutual the growing into that the honeycombed structure that forms makes that sclerotin can be quick, firm that be connected, in the situation that there is no autologous or the implantation of allograph bone tissue or bone grafting quantity not sufficient, also can not reach fast bone syncretizing effect, and avoid bone to transplant the complication of bringing.
The present invention has the following advantages: 1, disposablely complete interior fixing and bone-graft fusion, simplify operating procedure, be i.e. stable, the long-term postoperative joint fusion of immediate postoperative.2, create the mechanical environment of good bone-graft fusion.The bone grafting amount needing is few, does not need extensively to expose and peel off muscle and vertebral plate, greatly reduces operation wound.3, the design uses 3D to print, and flexible design, meets individual characteristic.4, the fixed form of the first through hole 13 Lu Zhui district bone sex deviation or arch of posterior atlas are lacked as situation under also can perform the operation, can treat in the past without surgical engine can patient.5, the hole that 3D printing technique provides can be grown into for the adjacent sclerotin of implant site, thereby realizes the fusion of bone and implants.Can cancel the osseous surgery of getting of autologous ilium, avoid the complication in Qu Gu district.
Technical scheme of the present invention is disclosed as above by preferred embodiment.Those skilled in the art should recognize in the situation that do not depart from change and the retouching that scope and spirit of the present invention that the appended claim of the present invention discloses are done, within all belonging to the protection domain of claim of the present invention.
Claims (10)
1. a joint fusion device, is characterized in that, comprises tray and lock-screw, and described tray is a wedge, is provided with one or more fusions hole on described tray, and described lock-screw is for fixing described tray.
2. joint fusion device as claimed in claim 1, is characterized in that, also comprises alar part, described alar part in the form of sheets, connect bottom one side that is arranged on described tray, the section together with described tray is L-type, is provided with for the through hole through described lock-screw on described tray and described alar part.
3. joint fusion device as claimed in claim 2, is characterized in that, the lamellar body that described alar part is uniform thickness, and bottom is arc.
4. joint fusion device as claimed in claim 2, is characterized in that, described alar part connects the bottom of the thicker one side that is arranged on described tray, and comprises two that two tops link together.
5. joint fusion device as claimed in claim 4, is characterized in that, is provided with upward the first through hole through upper proximal surface in the described thicker one side of described tray, is provided with the second through hole on described two of described alar part.
6. joint fusion device as claimed in claim 5, is characterized in that, described the first through hole and described the second through hole are unthreaded hole.
7. joint fusion device as claimed in claim 4, is characterized in that, described alar part and described tray are integrally formed, and the lateral surface of described alar part is concordant with the described thicker one side of described tray.
8. joint fusion device as claimed in claim 4, is characterized in that, on described tray, be also provided with and control hole, described in control hole and be positioned in the described thicker one side of described tray.
9. the joint fusion device as described in as arbitrary in claim 1-8, is characterized in that, described fusion Kong Weiyi macropore, and the upper and lower surface of described tray is run through in described fusion hole.
10. joint fusion device as claimed in claim 1, is characterized in that, described tray adopts 3D printing technique to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038103.7A CN103720527B (en) | 2014-01-26 | 2014-01-26 | A kind of joint fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038103.7A CN103720527B (en) | 2014-01-26 | 2014-01-26 | A kind of joint fusion cage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103720527A true CN103720527A (en) | 2014-04-16 |
| CN103720527B CN103720527B (en) | 2016-02-10 |
Family
ID=50444999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410038103.7A Expired - Fee Related CN103720527B (en) | 2014-01-26 | 2014-01-26 | A kind of joint fusion cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103720527B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104000674A (en) * | 2014-06-10 | 2014-08-27 | 张衣北 | Flexible trabecular bone structure interbody fusion cage |
| CN105147417A (en) * | 2015-06-24 | 2015-12-16 | 中国人民解放军第四军医大学 | Bone grafting stent for acetabular osteotomy reconstruction |
| CN105853032A (en) * | 2016-06-06 | 2016-08-17 | 陆宁 | Second cervical vertebra replacement body |
| CN108143523A (en) * | 2017-12-22 | 2018-06-12 | 北京大学第三医院 | Atlas and axis Lateral mass joint fixes fusing device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2875347Y (en) * | 2006-02-28 | 2007-03-07 | 孔琦 | Cervical vertebrae front steel plate fusion device |
| CN2936182Y (en) * | 2005-12-13 | 2007-08-22 | 赵定麟 | Barb type intervertebral fusion device with vertebral steel plate capable of opening regulation |
| CN201244104Y (en) * | 2008-06-27 | 2009-05-27 | 常州奥斯迈医疗器械有限公司 | Intervertebral fusion device for locking anterior lumbar interbody |
| CN201346235Y (en) * | 2008-12-31 | 2009-11-18 | 曾腾辉 | Intervertebral merging machine |
| CN101610741A (en) * | 2006-11-29 | 2009-12-23 | 外科技术有限公司 | Orthopaedic implants and prosthese |
| CN202342236U (en) * | 2011-10-24 | 2012-07-25 | 北京爱康宜诚医疗器材股份有限公司 | Fusion prosthesis |
| CN202589631U (en) * | 2012-05-16 | 2012-12-12 | 廖文胜 | Peroral atlantoaxial lateral mass joint fixing/fusing device |
| CN102860888A (en) * | 2012-09-07 | 2013-01-09 | 中山大学附属第三医院 | Integral lumbar intervertebral titanium plate fusion apparatus |
| US20130317548A1 (en) * | 2000-12-14 | 2013-11-28 | Depuy Synthes Products Llc | Devices and methods for facilitating controlled bone growth or repair |
| CN103494657A (en) * | 2013-08-15 | 2014-01-08 | 刘官喜生 | Fusion cage |
| CN203790085U (en) * | 2014-01-26 | 2014-08-27 | 北京大学第三医院 | Joint fusion device |
-
2014
- 2014-01-26 CN CN201410038103.7A patent/CN103720527B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130317548A1 (en) * | 2000-12-14 | 2013-11-28 | Depuy Synthes Products Llc | Devices and methods for facilitating controlled bone growth or repair |
| CN2936182Y (en) * | 2005-12-13 | 2007-08-22 | 赵定麟 | Barb type intervertebral fusion device with vertebral steel plate capable of opening regulation |
| CN2875347Y (en) * | 2006-02-28 | 2007-03-07 | 孔琦 | Cervical vertebrae front steel plate fusion device |
| CN101610741A (en) * | 2006-11-29 | 2009-12-23 | 外科技术有限公司 | Orthopaedic implants and prosthese |
| CN201244104Y (en) * | 2008-06-27 | 2009-05-27 | 常州奥斯迈医疗器械有限公司 | Intervertebral fusion device for locking anterior lumbar interbody |
| CN201346235Y (en) * | 2008-12-31 | 2009-11-18 | 曾腾辉 | Intervertebral merging machine |
| CN202342236U (en) * | 2011-10-24 | 2012-07-25 | 北京爱康宜诚医疗器材股份有限公司 | Fusion prosthesis |
| CN202589631U (en) * | 2012-05-16 | 2012-12-12 | 廖文胜 | Peroral atlantoaxial lateral mass joint fixing/fusing device |
| CN102860888A (en) * | 2012-09-07 | 2013-01-09 | 中山大学附属第三医院 | Integral lumbar intervertebral titanium plate fusion apparatus |
| CN103494657A (en) * | 2013-08-15 | 2014-01-08 | 刘官喜生 | Fusion cage |
| CN203790085U (en) * | 2014-01-26 | 2014-08-27 | 北京大学第三医院 | Joint fusion device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104000674A (en) * | 2014-06-10 | 2014-08-27 | 张衣北 | Flexible trabecular bone structure interbody fusion cage |
| CN105147417A (en) * | 2015-06-24 | 2015-12-16 | 中国人民解放军第四军医大学 | Bone grafting stent for acetabular osteotomy reconstruction |
| CN105853032A (en) * | 2016-06-06 | 2016-08-17 | 陆宁 | Second cervical vertebra replacement body |
| CN105853032B (en) * | 2016-06-06 | 2017-12-01 | 陆宁 | Axis replacement |
| CN108143523A (en) * | 2017-12-22 | 2018-06-12 | 北京大学第三医院 | Atlas and axis Lateral mass joint fixes fusing device |
| CN108143523B (en) * | 2017-12-22 | 2024-01-23 | 北京大学第三医院 | Atlantoaxial lateral mass joint fixing fusion device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103720527B (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Phan et al. | Application of a 3D custom printed patient specific spinal implant for C1/2 arthrodesis | |
| EP2772230B1 (en) | Fusion prosthesis for the axis | |
| EP2895092B1 (en) | Method for producing patient-specific plate | |
| JP2016512119A (en) | Removable reinforcement for medical implant | |
| Palmquist et al. | Complex geometry and integrated macro-porosity: Clinical applications of electron beam melting to fabricate bespoke bone-anchored implants | |
| CN103800101B (en) | A kind of anti-dislocation formula non-fused artificial cervical and intervertebral disc system | |
| CN104546228A (en) | Adjustable self-stabilizing type artificial sacrum prosthesis | |
| Strong | Orbital fractures: pathophysiology and implant materials for orbital reconstruction | |
| CN103720527B (en) | A kind of joint fusion cage | |
| Fang et al. | Comparative analysis of 3D-printed artificial vertebral body versus titanium mesh cage in repairing bone defects following single-level anterior cervical corpectomy and fusion | |
| CN107174325B (en) | Spinal fixation assembly | |
| CN203790085U (en) | Joint fusion device | |
| Thayaparan et al. | Patient-specific processes for occipitocervical fixation using biomodelling and additive manufacturing | |
| CN203749650U (en) | Dislocation prevention type non-fusion artificial cervical vertebra and intervertebral disc system | |
| CN108143523B (en) | Atlantoaxial lateral mass joint fixing fusion device | |
| CN204798066U (en) | Artificial pyramid | |
| RU173377U1 (en) | BIOACTIVE CELLULAR TRIANGULAR IMPLANT FOR REPLACEMENT OF THE TIBERAID DEFECT | |
| CN107928844B (en) | Atlantoaxial lateral mass joint fixing fusion device | |
| CN209301406U (en) | Atlas and axis Lateral mass joint fixes fusing device | |
| Ahmed et al. | 3D printed implants for joint replacement | |
| KR101496580B1 (en) | Reconstructing device for surgery of cervical disc | |
| CN208541442U (en) | Atlas and axis Lateral mass joint fixes fusing device | |
| CN105266929B (en) | A kind of composable allosome cortex axis of bone is to fusion device | |
| CN208710172U (en) | Articulatio sacroiliaca fusion device | |
| CN107928843B (en) | Tibia platform prosthesis component and knee joint prosthesis component with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20220126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |