CN106580526A - Cervical vertebral fusion cage - Google Patents
Cervical vertebral fusion cage Download PDFInfo
- Publication number
- CN106580526A CN106580526A CN201710023314.7A CN201710023314A CN106580526A CN 106580526 A CN106580526 A CN 106580526A CN 201710023314 A CN201710023314 A CN 201710023314A CN 106580526 A CN106580526 A CN 106580526A
- Authority
- CN
- China
- Prior art keywords
- fusion cage
- lock screw
- cervical vertebral
- main body
- fusion
- 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
Links
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
- A61F2/446—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 having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
-
- 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
-
- 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
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
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)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention provides a cervical vertebral fusion cage which comprises a fusion cage body and locking screws. The fusion cage body comprises a front end and a rear end, and the rear end of the fusion cage body is provided with locking screw mounting holes and a threaded hole matched with a surgical tool. Each locking screw comprises a screw rod and a screw cap, each screw rod and the corresponding screw cap are in integrated arrangement, the locking screws are mounted on the fusion cage body through the screw mounting holes, and the fusion cage body is fixed to a cervical vertebral body through the locking screws. After the cervical vertebral fusion cage is implanted at an intervertebral position, the locking screws are locked in the vertebral body to prevent the fusion cage from slipping, so that the fusion cage can be steadily arranged at the intervertebral position without steel plates for fixation, and small surgical wounds, patients' pain relief and short post-surgery healing time are realized. In addition, the cervical vertebral fusion cage which is provided with a porous mesh structure is beneficial for fusion of bone cell ingrowth, arrangement of autogenous bones or allogeneic bones into the fusion cage is avoided, and accordingly complications caused by bone transplantation are reduced.
Description
Technical field
The invention belongs to medical instruments field, and in particular to a kind of cervical vertebral fusion cage.
Background technology
Intervertebral disc of cervical vertebra degenerative disorders are one of common spinal diseases.Current treatment method be usually fusion device and
Steel plate combination is used, and wound is big, and operating procedure is more, brings long the time required to pain, and postoperation recovery to patient, easily
Cause complication.
The content of the invention
For problem above, the present invention provides a kind of cervical vertebral fusion cage, and the cervical vertebral fusion cage carries lock screw, and raising is melted
The stability of clutch, without the need for separately adding Interal fixation again, operating procedure is simple, wound is little, post-surgical healing time is short.
For achieving the above object, the technical scheme is that：A kind of cervical vertebral fusion cage, the cervical vertebral fusion cage includes melting
Clutch main body and lock screw；The fusion device main body includes front-end and back-end, and the fusion device body rear is provided with locking spiral shell
Nail installing hole and the screwed hole being engaged with operation tool；The lock screw is divided into nail rod and the head of a nail, the nail rod and nail
Cap is wholely set, and the lock screw is installed in fusion device main body by lock screw installing hole；The fusion device main body is led to
Cross lock screw to be fixed in cervical vertebral body.
The fusion device body rear is provided with two lock screw installing holes；Wherein, the axle of a lock screw installing hole
Line is oriented human dissection rostral, and the axis of another lock screw installing hole is oriented human dissection caudal.
There is angle between the axis and fusion device main body of the lock screw installing hole.
There is angle α, wherein α is between the axis direction of the lock screw installing hole and the cross section of fusion device main body
40±5°。
The cervical vertebral fusion cage is also comprising the snap ring for being used to prevent the lock screw from exiting fusion device main body；The locking
Screw mounting hole is provided with the groove structure coordinated with the snap ring, and snap ring is arranged at lock screw and installs by the groove structure
Kong Zhong.
The head of a nail of the lock screw is provided with the ring channel structures being engaged with snap ring.
The nail rod of the lock screw is provided with beneficial to the taper thread into centrum.
The fusion device main body has perforated grill structure.
The fusion device main body is made by 3 D-printing.
The fusion device body surfaces are using the convex design for meeting physiological anatomic architecture.Such convex design meets people
The anatomical structure of body cervical vertebra, preferably can fit after implantation with cervical vertebra.
Using fusion device main body made by 3 D-printing is on surface and is internally provided with perforated grill structure, the perforated grill
Structure is not due to being fine and close structure between grid, but perforated grill, so grow into beneficial to osteocyte, fusion device implantation
Afterwards, it is easy to growing into and fusion for bone, without the need for again autologous bone or homogeneous allogenic bone being inserted into fusion device, so as to reduce bone collection band
The complication come.
The fusion device material of main part is titanium alloy or PEEK (polyether-ether-ketone), and lock screw material is titanium alloy.
The surface of the fusion device main body is provided with anti-skidding toothing on side.
Compared with prior art, the present invention has following beneficial effect：
The present invention is fixed using lock screw to fusion device, and after fusion device is implanted between centrum, lock screw is locked
Prevent fusion device from slipping in centrum, fusion device is firmly placed between centrum, without the need for Interal fixation, operating procedure is simple, hand
Art wound is little, it is short to reduce patient's pain, post-surgical healing time.
Cervical vertebral fusion cage of the present invention has perforated grill structure, and beneficial to osteocyte realization fusion is grown into, and can remove bone grafting mistake from
Journey, without the need for again autologous bone or homogeneous allogenic bone being inserted into fusion device, reduces the complication that bone collection brings.
Additionally, the intervertenral space that the cervical vertebral fusion cage that the present invention is provided is inserted after decompression can be accommodated completely between centrum,
Avoid occupying the soft tissue space in front of centrum, zero incisura advantageously reduces the generation of postoperative dysphagia complication.
Description of the drawings
Fig. 1 is the structural representation of the cervical vertebral fusion cage of the embodiment of the present invention 1；
Fig. 2 is the cervical vertebral fusion cage rearview of the embodiment of the present invention 1；
Fig. 3 is the cervical vertebral fusion cage side view of the embodiment of the present invention 1；
Fig. 4 is the schematic diagram of the angle α between the lock screw installing hole of the embodiment of the present invention 1 and fusion device main body；
Fig. 5 is lock screw and snap ring scheme of installation；
Fig. 6 is the cervical vertebral fusion cage schematic diagram of the embodiment of the present invention 2；
1 fusion device main body；11 front ends；12 rear ends；13 lock screw installing holes；14 screwed holes；15 perforated grill structures；16
Anti-skid structure；
2 lock screws；21 nail rods；22 heads of a nail；
3 snap rings；
4：The bone grafting hole of the cervical vertebral fusion cage of embodiment 2.
Specific embodiment
For the ease of the understanding of the present invention, below in conjunction with accompanying drawing the present invention will be further explained explanation.
The cervical vertebral fusion cage of embodiment 1
The present embodiment cervical vertebral fusion cage, as shown in Figure 1, the cervical vertebral fusion cage includes fusion device main body 1 and locking spiral shell
Nail 2；The fusion device main body 1 includes front end 11 and rear end 12, and the fusion device body rear 12 is provided with lock screw installing hole
13 and the screwed hole 14 (Fig. 2) that is engaged with operation tool；The surface distributed of fusion device main body has perforated grill structure 15, many
The hole for interconnecting is respectively provided between the grid and grid of grid of holes structure, between the lines of composition grid；Fusion device main body
Surface jagged anti-skid structure 16 is also distributed with rim portion.
2 points of the lock screw is nail rod 21 and the head of a nail 22, and nail rod 21 and the head of a nail 22 are wholely set, and nail rod 21 is provided with cone spiral shell
Line, is easy to nail rod to enter centrum；The head of a nail 22 is installed in fusion device main body 1 by lock screw installing hole 13.
As shown in Fig. 2 this cervical vertebral fusion cage body rear 12 is provided with least two lock screw installing holes 13；Wherein, one
The axis of individual lock screw installing hole is oriented human dissection rostral, and the axis of another lock screw installing hole is oriented human body
Dissect caudal.As shown in figure 4, cross section (the A-A of the axis direction (B-B directions) of lock screw installing hole and fusion device main body
Direction) there is acute angle α, wherein α to be 40 ± 5 °.There is angle, implantation of being more convenient between lock screw and fusion device main body
Whole cervical vertebral fusion cage is fixed afterwards, prevents fusion device from slipping.
Snap ring 3 is arranged in the groove of lock screw installing hole 13, and the afterbody of the head of a nail 22 is provided with the annular being engaged with snap ring
Groove, the head of a nail 22 is threaded into after lock screw installing hole 13, and snap ring 3 is stuck in (Fig. 5) on the cannelure of the afterbody of the head of a nail 22, will follow closely
Cap 22 is fixed in screw mounting hole 13, lock screw 2 is installed in fusion device main body 1.
After between this cervical vertebral fusion cage implantation centrum, two lock screws 2 are respectively enterd in upper and lower adjacent vertebral, to fusion
Device is fixed, and fusion device main body is firmly placed between centrum, without the need for Interal fixation.
The cervical vertebral fusion cage main body Jing 3 D-printing of the present embodiment is formed, and is respectively provided with fusion device body surfaces and inside many
Grid of holes structure 15, such structure grows into realization because having the hole being interconnected between grid and grid beneficial to osteocyte
Fusion, without the need for again autologous bone or homogeneous allogenic bone being inserted into fusion device.
The cervical vertebral fusion cage of embodiment 2
Structural representation such as Fig. 6 of the cervical vertebral fusion cage of embodiment 2, its difference compared with Example 1 is, embodiment
2 cervical vertebral fusion cages do not have network in body surfaces, but have a bone grafting hole 4, are easy to bone to be implanted into.
The present invention is fixed using lock screw to fusion device, and after fusion device is implanted between centrum, lock screw is locked
Prevent fusion device from slipping in centrum, fusion device is firmly placed between centrum, without the need for Interal fixation, operating procedure is simple, hand
Art wound is little, it is short to reduce patient's pain, post-surgical healing time.Additionally, the cervical vertebral fusion cage that the present invention is provided is inserted after decompression
Intervertenral space can be accommodated completely between centrum, it is to avoid occupy the soft tissue space in front of centrum, and zero incisura advantageously reduces art
The generation of dysphagia complication afterwards.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto.
Claims (10)
1. a kind of cervical vertebral fusion cage, it is characterised in that the cervical vertebral fusion cage includes fusion device main body and lock screw；It is described to melt
Clutch main body includes front-end and back-end, and the fusion device body rear is provided with lock screw installing hole and matches with operation tool
The screwed hole of conjunction；The lock screw is divided into nail rod and the head of a nail, and the nail rod and the head of a nail are wholely set, and the lock screw passes through
Lock screw installing hole is installed in fusion device main body；The fusion device main body is fixed in cervical vertebral body by lock screw.
2. cervical vertebral fusion cage according to claim 1, it is characterised in that the fusion device body rear is provided with two lockings
Screw mounting hole；Wherein, the axis of a lock screw installing hole is oriented human dissection rostral, and another lock screw is installed
The axis in hole is oriented human dissection caudal.
3. cervical vertebral fusion cage according to claim 1, it is characterised in that the axis of the lock screw installing hole and fusion
There is angle between device main body.
4. cervical vertebral fusion cage according to claim 3, it is characterised in that the axis direction of the lock screw installing hole with
There is angle α, wherein α is 40 ± 5 ° between the cross section of fusion device main body.
5. cervical vertebral fusion cage according to claim 1, it is characterised in that the cervical vertebral fusion cage is also comprising for preventing institute
State the snap ring that lock screw exits fusion device main body；The lock screw installing hole is provided with the groove knot coordinated with the snap ring
Structure, snap ring is arranged in lock screw installing hole by the groove structure.
6. cervical vertebral fusion cage according to claim 5, it is characterised in that the head of a nail of the lock screw is provided with and snap ring phase
The ring channel structures of cooperation.
7. cervical vertebral fusion cage according to claim 1, it is characterised in that the nail rod of the lock screw is provided with beneficial to entering
The taper thread of centrum.
8. cervical vertebral fusion cage according to claim 1, it is characterised in that there is the fusion device main body perforated grill to tie
Structure.
9. cervical vertebral fusion cage according to claim 8, it is characterised in that the fusion device main body passes through 3 D-printing system
Into.
10. cervical vertebral fusion cage according to claim 1, it is characterised in that the fusion device body surfaces are using meeting life
The convex design of reason anatomical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710023314.7A CN106580526A (en) | 2017-01-12 | 2017-01-12 | Cervical vertebral fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710023314.7A CN106580526A (en) | 2017-01-12 | 2017-01-12 | Cervical vertebral fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106580526A true CN106580526A (en) | 2017-04-26 |
Family
ID=58584768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710023314.7A Pending CN106580526A (en) | 2017-01-12 | 2017-01-12 | Cervical vertebral fusion cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106580526A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569308A (en) * | 2017-08-08 | 2018-01-12 | 河北瑞鹤医疗器械有限公司 | Porous integrated cervical vertebral fusion cage |
| CN108324357A (en) * | 2018-03-14 | 2018-07-27 | 熊鹰 | A kind of minimally invasive drift fixing bracket device |
| CN108670505A (en) * | 2018-05-22 | 2018-10-19 | 广州迈普再生医学科技股份有限公司 | A kind of Invasive lumbar fusion device of 3D printing and preparation method thereof |
| CN108852563A (en) * | 2018-04-12 | 2018-11-23 | 深圳清华大学研究院 | Zero incisura Invasive lumbar fusion device of anterior cervical vertebrae |
| CN109646153A (en) * | 2019-02-28 | 2019-04-19 | 赵刘军 | Novel interbody cage systems based on lower cervical anterior pedicle of vertebral arch basal part screw |
| CN109953840A (en) * | 2019-04-04 | 2019-07-02 | 山东新华联合骨科器材股份有限公司 | Zero incisura anterior cervical interbody fusion cage of 3D printing |
| CN110538014A (en) * | 2019-10-08 | 2019-12-06 | 宋兴华 | Fusion cage for minimally invasive surgery and fusion cage assembly |
| CN111067672A (en) * | 2019-12-31 | 2020-04-28 | 江苏澳格姆生物科技有限公司 | Degradable cervical vertebra fusion cage and implantation method thereof |
| CN117204988A (en) * | 2023-09-13 | 2023-12-12 | 上海锐植医疗器械有限公司 | Interbody fusion cage and printing equipment and method thereof |
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| CN203736352U (en) * | 2014-03-13 | 2014-07-30 | 毛德举 | Anti-separation lumbar vertebra interbody fusion cage |
| CN205215455U (en) * | 2015-11-26 | 2016-05-11 | 上海三友医疗器械有限公司 | Interbody fusion cage |
| CN205515050U (en) * | 2016-03-04 | 2016-08-31 | 常州华森医疗器械有限公司 | Zero notch interbody fusion cage on porous titanium alloy people throat way |
| CN205514849U (en) * | 2016-01-27 | 2016-08-31 | 江西荣信医疗科技有限公司 | Fuse ware between zero notch anterior cervical spine awl |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7766911B1 (en) * | 2002-07-05 | 2010-08-03 | Theken Spine, Llc | Fixed and variable locking fixation assembly |
| CN2834440Y (en) * | 2004-11-05 | 2006-11-08 | 于海鹰 | Spinal inner fixer for case type inosculation device |
| WO2011008864A1 (en) * | 2009-07-14 | 2011-01-20 | Life Spine, Inc. | Combined interbody and plate assemblies |
| US20120083881A1 (en) * | 2010-10-02 | 2012-04-05 | Roderick Claybrooks | Stand-Alone Anterior Fusion Device |
| US20120209385A1 (en) * | 2011-02-15 | 2012-08-16 | Joshua Michael Aferzon | Anterior intervertebral fusion with fixation system, device and method |
| CN203736352U (en) * | 2014-03-13 | 2014-07-30 | 毛德举 | Anti-separation lumbar vertebra interbody fusion cage |
| CN205215455U (en) * | 2015-11-26 | 2016-05-11 | 上海三友医疗器械有限公司 | Interbody fusion cage |
| CN205514849U (en) * | 2016-01-27 | 2016-08-31 | 江西荣信医疗科技有限公司 | Fuse ware between zero notch anterior cervical spine awl |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569308B (en) * | 2017-08-08 | 2024-04-12 | 河北医科大学第三医院 | Porous integrated cervical vertebra fusion device |
| CN107569308A (en) * | 2017-08-08 | 2018-01-12 | 河北瑞鹤医疗器械有限公司 | Porous integrated cervical vertebral fusion cage |
| CN108324357A (en) * | 2018-03-14 | 2018-07-27 | 熊鹰 | A kind of minimally invasive drift fixing bracket device |
| CN108324357B (en) * | 2018-03-14 | 2024-04-30 | 熊鹰 | Minimally invasive drifting fixed support device |
| CN108852563A (en) * | 2018-04-12 | 2018-11-23 | 深圳清华大学研究院 | Zero incisura Invasive lumbar fusion device of anterior cervical vertebrae |
| CN108670505A (en) * | 2018-05-22 | 2018-10-19 | 广州迈普再生医学科技股份有限公司 | A kind of Invasive lumbar fusion device of 3D printing and preparation method thereof |
| CN109646153A (en) * | 2019-02-28 | 2019-04-19 | 赵刘军 | Novel interbody cage systems based on lower cervical anterior pedicle of vertebral arch basal part screw |
| CN109953840A (en) * | 2019-04-04 | 2019-07-02 | 山东新华联合骨科器材股份有限公司 | Zero incisura anterior cervical interbody fusion cage of 3D printing |
| CN110538014A (en) * | 2019-10-08 | 2019-12-06 | 宋兴华 | Fusion cage for minimally invasive surgery and fusion cage assembly |
| CN110538014B (en) * | 2019-10-08 | 2024-05-14 | 宋兴华 | Fusion device and fusion device assembly for minimally invasive surgery |
| CN111067672A (en) * | 2019-12-31 | 2020-04-28 | 江苏澳格姆生物科技有限公司 | Degradable cervical vertebra fusion cage and implantation method thereof |
| CN117204988A (en) * | 2023-09-13 | 2023-12-12 | 上海锐植医疗器械有限公司 | Interbody fusion cage and printing equipment and method thereof |
| CN117204988B (en) * | 2023-09-13 | 2024-06-25 | 上海锐植医疗器械有限公司 | Interbody fusion cage and printing equipment and method thereof |
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Application publication date: 20170426 |