CN101406417A - In vivo cervical vertebra fusion implant article - Google Patents
In vivo cervical vertebra fusion implant article Download PDFInfo
- Publication number
- CN101406417A CN101406417A CNA2008101221114A CN200810122111A CN101406417A CN 101406417 A CN101406417 A CN 101406417A CN A2008101221114 A CNA2008101221114 A CN A2008101221114A CN 200810122111 A CN200810122111 A CN 200810122111A CN 101406417 A CN101406417 A CN 101406417A
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- CN
- China
- Prior art keywords
- cervical vertebra
- fusion implant
- framework
- vertebra fusion
- implant article
- 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.)
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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
-
- 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 invention discloses an interbody vertebra fusion implant, which comprises a flat wedge-shaped frame, wherein the frame is separated by a reinforcing rib which is arranged in the frame to two inner cavities in which calcium phosphate is filled; and the upper surface of the reinforcing rib is arch-protrusion shaped, the upper surfaces and the lower surfaces of the frame and the reinforcing rib are provided with saw teeth respectively, and the lower surface of the frame is provided with two rectangular pyramids protruded outwards symmetrically. The interbody cervical vertebra fusion implant has the advantages of high intensity, good tenacity, no centrum collapse after operation, convenient implant, reliable and excellent biocompatibility.
Description
Technical field
The present invention relates to cervical vertebra fusion implant article in a kind of body.
Background technology
Existing more than the 20 year history of using cervical vertebra fusion device treatment cervical spondylosis, since Robinson-Smith and Cloward start the anterior cervical decompression bone graft fusion the 1950's, because this technology can effectively be removed the fragment of prominent intervertebral disc, hypertrophy hyperosteogeny and fracture to the Taper Pipe front, and bone-graft fusion simultaneously, treat cervical vertebra wound, tumor, cervical spondylosis so be widely used in.But there are a lot of shortcomings in autograft, for example: easily be shifted, subsiding causes intervertebral height to be lost.Therefore, be devoted to develop the novel cervical vertebra fusion device both at home and abroad always.The shape of most widely used cervical vertebral fusion cage mainly contains linear screw-like cage, rectangle cage clinically at present, material is bio-medical metal materials such as Ti6Al4V, Ni-Ti marmem mostly, yet there is certain difference in its section of the cervical vertebral fusion cage of these shapes and normal person's cervical vertebra crack, can not keep normal spinal column curve, postoperative easily causes collapse of vertebra, malunion, cervical vertebra crack narrow etc., metal object opacity in addition, postoperative is difficult to assess fusion situation between vertebral body.
Summary of the invention
The purpose of this invention is to provide a kind ofly develop, cervical vertebra fusion implant article in intensity height, good toughness, good biocompatibility, a kind of body that easily implants.
Cervical vertebra fusion implant article in the body of the present invention, comprise flat wedge-like framework, framework is separated to form two inner chambers by the reinforcement of establishing within it, fill calcium phosphate in the inner chamber, the curved crowned of the upper surface of reinforcement, the upper and lower surface of framework and reinforcement has sawtooth respectively, is symmetrically arranged with the rectangular pyramid of two evaginations at the lower surface of framework.
Develop to observe the position of cervical vertebra fusion implant article in the body for the ease of postoperative, symmetric two holes are set, be embedded with the titanium alloy tingle that is used to develop in two holes at the lower surface of framework.
For the ease of the implantation of cervical vertebra fusion implant article in the body, tapped propelling hole can be set at the upper side wall of framework.
The preparation of body endomixis cervical vertebra implant: the raw material polyether-ether-ketone is put into injector energising fusing, when temperature reaches 375 ℃, the injection molding molding; Fill calcium phosphate in two of cervical vertebra fusion implant article inner chambers in vivo then, in the symmetrical holes that the framework lower surface is established, embed the titanium alloy tingle.
Cervical vertebra fusion implant article has the following advantages in the body of the present invention:
1. cervical vertebra fusion implant article is flat wedge-like frame-like in the body, there is a reinforcement centre, the upper surface of reinforcement is the arc crowned, this structure meets the normal physiology camber line of cervical vertebra, strengthened the contact area of implant and vertebral body, can eliminate that cervical vertebra fusion implant article is implanted the back sedimentation in the body, cervical vertebrae height is lost, effectively prevent the postoperative collapse of vertebra.
2. the zigzag design is adopted on the upper and lower surface of cervical vertebra fusion implant article in the body, prevents that implant is forward and backward mobile at cervical vertebra.Two evagination rectangular pyramids of cervical vertebra fusion implant article lower surface in the body can prevent that implant is left and right mobile at cervical vertebra.Make implant possess stable, persistent support performance.
3. two inner chamber calcium phosphate fillings of cervical vertebra fusion implant article in the body because calcium phosphate is ideal biomaterial, can form inline compatible integral body with cervical spine soft tissue, have significantly increased bone conduction effect, help the recovery of postoperative patient.
4. in the interior cervical vertebra fusion implant article of body, embedded two pieces of titanium alloy tingles that are used to develop are convenient to the postoperative X line and are observed its position.
5. simple, any surface finish of cervical vertebra fusion implant article manufacturing process in the body is implanted conveniently, and is safe and reliable.
Description of drawings
Fig. 1 is the graphics of cervical vertebra fusion implant article in the body.
Fig. 2 is the three-view diagram of cervical vertebra fusion implant article in the body.Wherein A is a front view; C is a vertical view; B is a left view.
Among the figure, the flat wedge-like framework of 1-, 2-reinforcement, 3-inner chamber, 4-sawtooth, 5-rectangular pyramid, 6-titanium alloy tingle, the tapped propelling of 7-hole.
The specific embodiment
Further specify the present invention below in conjunction with accompanying drawing.
With reference to accompanying drawing, cervical vertebra fusion implant article in the body of the present invention, comprise flat wedge-like framework 1, framework is separated to form two inner chambers 3 by the reinforcement of establishing within it 2, fill calcium phosphate in the inner chamber 3, the curved crowned of the upper surface of reinforcement, the upper and lower surface of framework and reinforcement has sawtooth 4 respectively, is symmetrically arranged with the rectangular pyramid 5 of two evaginations at the lower surface of framework.Be provided with in 6, two holes, symmetric two holes at the lower surface of framework and be embedded with the titanium alloy tingle that is used to develop.Front side wall at framework is provided with tapped propelling hole 7.
Claims (3)
1. cervical vertebra fusion implant article in the body, it is characterized in that comprising flat wedge-like framework (1), framework is separated to form two inner chambers (3) by the reinforcement of establishing within it (2), fill calcium phosphate in the inner chamber (3), the curved crowned of the upper surface of reinforcement, the upper and lower surface of framework and reinforcement has sawtooth (4) respectively, is symmetrically arranged with the rectangular pyramid (5) of two evaginations at the lower surface of framework.
2. cervical vertebra fusion implant article in the body according to claim 1 is characterized in that being provided with symmetric two holes (6) at the lower surface of framework, is embedded with the titanium alloy tingle that is used to develop in two holes.
3. cervical vertebra fusion implant article in the body according to claim 1 is characterized in that at the upper side wall of framework tapped propelling hole (7) being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101221114A CN101406417A (en) | 2008-10-28 | 2008-10-28 | In vivo cervical vertebra fusion implant article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101221114A CN101406417A (en) | 2008-10-28 | 2008-10-28 | In vivo cervical vertebra fusion implant article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101406417A true CN101406417A (en) | 2009-04-15 |
Family
ID=40569776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101221114A Pending CN101406417A (en) | 2008-10-28 | 2008-10-28 | In vivo cervical vertebra fusion implant article |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101406417A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144942A (en) * | 2010-02-10 | 2011-08-10 | 上海微创骨科医疗科技有限公司 | Intervertebral implant |
| CN102869322A (en) * | 2010-03-03 | 2013-01-09 | Lfc斯博拉卡公司 | Prosthesis for spinal column, instrument for its guiding and method for implantation thereof |
| CN104970906A (en) * | 2015-06-29 | 2015-10-14 | 北京贝思达生物技术有限公司 | Interbody fusion instrument |
| CN109044571A (en) * | 2018-07-06 | 2018-12-21 | 上海纳米技术及应用国家工程研究中心有限公司 | The preparation method and product of half-moon-shaped 3D printing PLGA/ hydroxyapatite waist Invasive lumbar fusion device and application |
| WO2022052487A1 (en) * | 2020-09-09 | 2022-03-17 | 袁峰 | Self-stabilising fusion cage between posterior cervical articular processes |
-
2008
- 2008-10-28 CN CNA2008101221114A patent/CN101406417A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144942A (en) * | 2010-02-10 | 2011-08-10 | 上海微创骨科医疗科技有限公司 | Intervertebral implant |
| WO2011097905A1 (en) * | 2010-02-10 | 2011-08-18 | 上海微创骨科医疗科技有限公司 | Intervertebral implant |
| CN102869322A (en) * | 2010-03-03 | 2013-01-09 | Lfc斯博拉卡公司 | Prosthesis for spinal column, instrument for its guiding and method for implantation thereof |
| CN102869322B (en) * | 2010-03-03 | 2015-07-08 | Lfc斯博拉卡公司 | Prosthesis for spinal column, instrument for its guiding and method for implantation thereof |
| CN104970906A (en) * | 2015-06-29 | 2015-10-14 | 北京贝思达生物技术有限公司 | Interbody fusion instrument |
| CN109044571A (en) * | 2018-07-06 | 2018-12-21 | 上海纳米技术及应用国家工程研究中心有限公司 | The preparation method and product of half-moon-shaped 3D printing PLGA/ hydroxyapatite waist Invasive lumbar fusion device and application |
| WO2022052487A1 (en) * | 2020-09-09 | 2022-03-17 | 袁峰 | Self-stabilising fusion cage between posterior cervical articular processes |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090415 |