CN102335051A - Cervical spine locking and fusion device - Google Patents
Cervical spine locking and fusion device Download PDFInfo
- Publication number
- CN102335051A CN102335051A CN2011103225681A CN201110322568A CN102335051A CN 102335051 A CN102335051 A CN 102335051A CN 2011103225681 A CN2011103225681 A CN 2011103225681A CN 201110322568 A CN201110322568 A CN 201110322568A CN 102335051 A CN102335051 A CN 102335051A
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- Prior art keywords
- fusion device
- blade
- main body
- fusion
- locking
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- 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
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- 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
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Neurology (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 belongs to medical appliances, and in particular relates to a cervical spine locking and fusion device, characterized in that: perforated fusion holes are formed on a main body and used as bone graft implanting spaces; and a rotatable fixing device composed of bolts, a blade and nuts is arranged at the front part of the main body of the fusion device, wherein the blade is fixed together with the main body through the bolts and nuts, and the blade can be rotated to be locked by the bolts. The main body of the fusion device presents an arc shape on the upper surface and a wedge shape on the lower surface, and both the upper and lower surfaces are provided with anti-slip serrations for enhancing stability. According to the invention, the cervical spine locking and fusion device is implanted into the intervertenral space, and the blade is rotated 90 degrees to be retained into upper and lower vertebral bodies, thereby preventing the fusion device from slipping out of the vertebral bodies, enhancing the stability at the early stage of operations, improving the fusion rate and restoring an ideal vertebral body height, and the cervical spine locking and fusion device has the characteristics of short operation time, safety and alleviation of suffering of patients.
Description
Technical field
The invention belongs to medical mechanical domain, specifically is a kind of anterior cervical vertebrae locking fusion device.
Background technology
Intervertebral disc protrusion of cervical vertebra disease is the spinal surgery commonly encountered diseases.Intervertebral disc is made up of vertebral pulp that is positioned at central authorities and the fibrous ring that holds all around; Vertebral pulp is positioned at the central authorities of intervertebral disc; It is a kind ofly to be rich in moisture, to be gelatin elastin laminin; Around vertebral pulp is fibrous ring, and fibrous ring from level to level links together two vertebral bodys, and is fixed on central authorities to vertebral pulp firmly.When vertebral body was born longitudinal load, vertebral pulp borrowed its better elastic to expand to periphery with fibrous ring, with compensator or trimmer pressure, cushioning effect is arranged, and when walking, spring, running, prevented to shake the cranium brain.This structure of intervertebral disc allows to take exercises by the elasticity of vertebral pulp and the tension force of mobile and fibrous ring between vertebral body.But when people's age increases; Water content in the intervertebral disc reduces, proteoglycan content is lower; The height of intervertebral space reduces; The physiological function of intervertebral disc is lost gradually, and outstanding intervertebral disc all can increase the weight of patient's prolapse of cervical intervertebral disc to compressing, the pro-inflammatory cytokine of nerve to the situation such as stimulation of nerve.
Be to carry out cervical operation for prolapse of cervical intervertebral disc efficacious therapy method at present; Promptly in order to recover the physiologic radian of intervertebral height and cervical vertebra; Make cervical vertebra reach stable at once; Need carry out bone-graft fusion at depressor area, wherein the anterior cervical decompression bone graft fusion is the operation method commonly used of treating cervical spondylosis clinically.Because of having the simplification operation process, reduce complication; Obtain instant stablizing, improve fusion rate; Keep advantages such as intervertebral height and physiologic radian, approved by many clinicists and patient.But because there is 5～10 ° inclination in the vertebral body surface, anterior and posterior height is inconsistent between vertebral body, and preceding high back is low, and the Invasive lumbar fusion device of implantation is difficult to be close to upper and lower vertebral body, occurs the phenomenon that fusion device skids off from vertebral body easily.Skid off phenomenon in case fusion device occurs, the adjacent phases regression can appear in cervical vertebrae physiological radian hour, and the internal fixation fracture causes the failure of performing the operation.
Summary of the invention
The objective of the invention is in order to overcome the phenomenon that skids off that existing fusion device possibly occur after implantation, recover fast for the surgeon provides a kind of, be difficult for the anterior cervical vertebrae that health causes damage, fixed form to guarantee that implant has stability is locked fusion device.
The technical scheme that the present invention adopted is:
A kind of anterior cervical vertebrae locking fusion device comprises the fusion device main body, it is characterized in that: the fusion hole that connects before and after main body is provided with, implant the space as bone grafting; Be provided with the rotatable fixture that bolt, blade and nut are formed in the fusion device body front part, wherein blade is fixed together through bolts and nuts and main body, can make blade rotation realize locking through bolt.
Main body upper surface of the present invention is curved, and lower surface is wedge shape, and upper and lower surfaces is equipped with anti-slop serrations, with enhanced stability.
The present invention has marker pin, and main body is provided with and marker pin shape, development pin-and-hole that number is consistent, is used to insert marker pin.
Bolt hollow of the present invention, convenience is implanted plant bone mass, and the head of bolt is provided with a screw thread and a word groove, and convenience cooperates with implanting instrument.
When the present invention performs the operation, adopt preceding road approach modus operandi, cervical vertebra is locked fusion device be implanted to intervertebral space; One word groove of rotating bolt head, blade revolves and turn 90 degrees, and blade sticks into hypocentrum; Prevent that fusion device from skidding off the effect of vertebral body thereby reach; Increase the stability at operation initial stage, improve fusion rate, recover ideal vertebral height.The present invention has operating time weak point, safety, can alleviate the characteristics of patient's misery.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the A of Fig. 1 is to partial view.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is blade of the present invention and bolted partial sectional view.
Fig. 5 is the view after the present invention implants vertebral body.
The specific embodiment
Contrast accompanying drawing below, be further described through implementing that cervical vertebra of the present invention is locked fusion device.
Shown in Fig. 1-5, a kind of anterior cervical vertebrae locking fusion device comprises bolt 1, main body 2, blade 3, nut 4; Fusion device main body 2 upper surfaces are curved; Lower surface is wedge shape, and upper surface and lower surface are equipped with anti-slop serrations 7, the fusion hole 6 that connects before and after main body 2 is provided with; Blade 3 is fixed together through bolt 1 and nut 4 and main body 2, through bolt 1 blade 3 is rotated and realizes locking; The present invention has marker pin 5, and main body 2 is provided with and marker pin 5 shapes, development pin-and-hole that number is consistent, is used to insert marker pin 5.
As shown in Figure 4, blade 3 of the present invention is provided with D type hole, and next side is the sharp edge of a knife on the blade, and bolt 1 axle head also is D shape, guarantees that blade 3 is connected with the reliable of bolt 1.
Like Fig. 5, during operation, adopt preceding road approach modus operandi, cervical vertebra is locked fusion device be implanted to intervertebral space, the word groove 8 through implanting instrument swivel bolt 1 makes blade 3 revolve and turn 90 degrees, blade 3 is combined closely with last hypocentrum.
Cervical vertebra locking fusion device of the present invention, the PEEK material that main body adopts biocompatibility and mechanical performance to obtain extensively generally acknowledging in the whole world is processed, and can in art, accurately locate and clinical follow bone property fusion situation therebetween; Blade, bolt, nut adopt titanium alloy material to process, and marker pin adopts pure titanium material to process, and after the cervical vertebra place implants this cervical vertebra locking fusion device, can see the accurate position of fusion device at any time through the mode of X-ray film making, make things convenient for the inspection of postoperative.
Claims (5)
1. an anterior cervical vertebrae locks fusion device; Comprise the fusion device main body; It is characterized in that: the fusion hole that connects before and after main body is provided with, be provided with the rotatable fixture that bolt, blade and nut are formed in the fusion device body front part, wherein blade is fixed together through bolts and nuts and main body.
2. anterior cervical vertebrae locking fusion device according to claim 1, it is characterized in that: the main body upper surface is curved, and lower surface is wedge shape, and upper and lower surfaces is equipped with anti-slop serrations.
3. anterior cervical vertebrae according to claim 1 and 2 locking fusion device, it is characterized in that: main body has marker pin, and main body is provided with and marker pin shape, development pin-and-hole that number is consistent, is used to insert marker pin.
4. anterior cervical vertebrae locking fusion device according to claim 1 and 2, it is characterized in that: said bolt hollow, head are provided with a screw thread and a word groove.
5. anterior cervical vertebrae locking fusion device according to claim 4, it is characterized in that: blade is provided with D type hole, and next side is the sharp edge of a knife on the blade, and the bolt axle head also is D shape, and blade and bolt are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103225681A CN102335051A (en) | 2011-10-21 | 2011-10-21 | Cervical spine locking and fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103225681A CN102335051A (en) | 2011-10-21 | 2011-10-21 | Cervical spine locking and fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102335051A true CN102335051A (en) | 2012-02-01 |
Family
ID=45511160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103225681A Pending CN102335051A (en) | 2011-10-21 | 2011-10-21 | Cervical spine locking and fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102335051A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908329A (en) * | 2014-03-13 | 2014-07-09 | 山东冠龙医疗用品有限公司 | Threaded fusion cage |
| CN105213006A (en) * | 2014-06-17 | 2016-01-06 | 王克平 | Upper cervical spine anterior stabilization inner fixer |
| CN105310805A (en) * | 2015-12-07 | 2016-02-10 | 北京市富乐科技开发有限公司 | Anti-retreat distraction anterior cervical spine fusion cage |
| CN107252372A (en) * | 2017-05-17 | 2017-10-17 | 暨南大学 | Mortise and tenon type cervical intervertebral fixator |
| CN112294497A (en) * | 2020-11-23 | 2021-02-02 | 博能华医疗器械（北京）有限公司 | Zero-notch interbody fusion cage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2701412Y (en) * | 2004-04-08 | 2005-05-25 | 万邦高科技股份有限公司 | Device for turning, fixing and repositioning intervertebral blades |
| CN201701334U (en) * | 2010-04-23 | 2011-01-12 | 创生医疗器械(江苏)有限公司 | Cervical vertebra fusion device |
| CN201870715U (en) * | 2010-12-02 | 2011-06-22 | 无锡尚瑞德医疗器械有限公司 | Intervertebral fusion device |
| CN202288538U (en) * | 2011-10-21 | 2012-07-04 | 浙江科惠医疗器械有限公司 | Anterior cervical vertebra locking fusion cage |
-
2011
- 2011-10-21 CN CN2011103225681A patent/CN102335051A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2701412Y (en) * | 2004-04-08 | 2005-05-25 | 万邦高科技股份有限公司 | Device for turning, fixing and repositioning intervertebral blades |
| CN201701334U (en) * | 2010-04-23 | 2011-01-12 | 创生医疗器械(江苏)有限公司 | Cervical vertebra fusion device |
| CN201870715U (en) * | 2010-12-02 | 2011-06-22 | 无锡尚瑞德医疗器械有限公司 | Intervertebral fusion device |
| CN202288538U (en) * | 2011-10-21 | 2012-07-04 | 浙江科惠医疗器械有限公司 | Anterior cervical vertebra locking fusion cage |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908329A (en) * | 2014-03-13 | 2014-07-09 | 山东冠龙医疗用品有限公司 | Threaded fusion cage |
| CN103908329B (en) * | 2014-03-13 | 2015-12-02 | 山东冠龙医疗用品有限公司 | A kind of threaded fusion cage |
| CN105213006A (en) * | 2014-06-17 | 2016-01-06 | 王克平 | Upper cervical spine anterior stabilization inner fixer |
| CN105310805A (en) * | 2015-12-07 | 2016-02-10 | 北京市富乐科技开发有限公司 | Anti-retreat distraction anterior cervical spine fusion cage |
| CN107252372A (en) * | 2017-05-17 | 2017-10-17 | 暨南大学 | Mortise and tenon type cervical intervertebral fixator |
| CN112294497A (en) * | 2020-11-23 | 2021-02-02 | 博能华医疗器械（北京）有限公司 | Zero-notch interbody fusion cage |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120201 |