CN202288538U - Anterior cervical vertebra locking fusion cage - Google Patents
Anterior cervical vertebra locking fusion cage Download PDFInfo
- Publication number
- CN202288538U CN202288538U CN2011204042310U CN201120404231U CN202288538U CN 202288538 U CN202288538 U CN 202288538U CN 2011204042310 U CN2011204042310 U CN 2011204042310U CN 201120404231 U CN201120404231 U CN 201120404231U CN 202288538 U CN202288538 U CN 202288538U
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- CN
- China
- Prior art keywords
- main body
- blade
- anterior cervical
- locking
- vertebra
- 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.)
- Expired - Lifetime
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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)
- Prostheses (AREA)
Abstract
The utility model belongs to medical instruments, and particularly relates to an anterior cervical vertebra locking fusion cage. The anterior cervical locking fusion cage is characterized in that a fusion hole penetrating through a front part and a rear part is arranged on a main body and used as a planting space for bone transplantation. The front part of the main body of the fusion cage is provided with a rotatable fixing device composed of a bolt, a blade and a nut, wherein the blade is fixed with the main body through the bolt and the nut, and the blade can be rotated to achieve locking through the bolt. The upper surface of the main body is in an arc shape, the lower surface of the main body is in a wedge shape, and the upper surface and the lower surface are both provided with anti-slipping teeth to enhance stability. The anterior cervical vertebra locking fusion cage is planted into a vertebra gap, and the blade rotates 90 degrees to be clamped between an upper vertebra body and a lower vertebra body to achieve the effect of preventing the fusion cage from slipping out of the vertebra bodies. The stability in operation initial period is enhanced, fusion rate is improved, ideal vertebra height is recovered, and the anterior cervical vertebra locking fusion cage has the advantages of being short in operation time, safe, and capable of reducing pain of a patient.
Description
Technical field
This utility model 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 purpose of this utility model is in order to overcome the phenomenon that skids off that existing fusion device possibly occur after implantation, recovers fast for the surgeon provides a kind of, is 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 this utility model 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.
This utility model main body upper surface is curved, and lower surface is wedge shape, and upper and lower surfaces is equipped with anti-slop serrations, with enhanced stability.
This utility model 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.
This utility model bolt hollow, 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.
During this utility model 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 utlity model has operating time weak point, safety, can alleviate the characteristics of patient's misery.
Description of drawings
Fig. 1 is this utility model structural representation.
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 this utility model blade and bolted partial sectional view.
Fig. 5 is the view after this utility model is implanted vertebral body.
The specific embodiment
Contrast accompanying drawing below, be further described through the cervical vertebra locking fusion device of enforcement to this utility model.
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; This utility model 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, this utility model blade 3 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.
This utility model bolt 1 hollow, convenience is implanted plant bone mass, and the head of bolt 1 is provided with a screw thread 9 and a word groove 8 (like Fig. 2), and convenience cooperates with implanting instrument.
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.
The described cervical vertebra locking of this utility model fusion device, 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 |
|---|---|---|---|
| CN2011204042310U CN202288538U (en) | 2011-10-21 | 2011-10-21 | Anterior cervical vertebra locking fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204042310U CN202288538U (en) | 2011-10-21 | 2011-10-21 | Anterior cervical vertebra locking fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202288538U true CN202288538U (en) | 2012-07-04 |
Family
ID=46357537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204042310U Expired - Lifetime CN202288538U (en) | 2011-10-21 | 2011-10-21 | Anterior cervical vertebra locking fusion cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202288538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335051A (en) * | 2011-10-21 | 2012-02-01 | 浙江科惠医疗器械有限公司 | Cervical spine locking and fusion device |
| CN111821072A (en) * | 2020-07-22 | 2020-10-27 | 广州民鋆医疗科技发展有限公司 | Intervertebral fusion cage |
-
2011
- 2011-10-21 CN CN2011204042310U patent/CN202288538U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335051A (en) * | 2011-10-21 | 2012-02-01 | 浙江科惠医疗器械有限公司 | Cervical spine locking and fusion device |
| CN111821072A (en) * | 2020-07-22 | 2020-10-27 | 广州民鋆医疗科技发展有限公司 | Intervertebral fusion cage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG CANWELL MEDICAL CO., LTD. Free format text: FORMER NAME: KEHUI MEDICAL EQUIPMENT CO., LTD., ZHEJIANG |
|
| CP03 | Change of name, title or address |
Address after: 321016 Zhejiang Province, Jinhua city Wucheng District Xianghua Street No. 466 Patentee after: Zhejiang Ke Hui Medical Treatment Equipment Co., Ltd Address before: 321016 Zhejiang city of Jinhua province Xian No. 466 South Street Zhejiang Kehui Medical Equipment Co Ltd Patentee before: Zhejiang Canwell Medical Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |