CN201719410U - Artificial disc - Google Patents
Artificial disc Download PDFInfo
- Publication number
- CN201719410U CN201719410U CN2010202477775U CN201020247777U CN201719410U CN 201719410 U CN201719410 U CN 201719410U CN 2010202477775 U CN2010202477775 U CN 2010202477775U CN 201020247777 U CN201020247777 U CN 201020247777U CN 201719410 U CN201719410 U CN 201719410U
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- CN
- China
- Prior art keywords
- cover plate
- lower cover
- intervertebral disk
- artificial intervertebral
- nuclear
- 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
Links
- 239000000463 material Substances 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 229910000771 Vitallium Inorganic materials 0.000 claims description 3
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- 239000000602 vitallium Substances 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007850 degeneration Effects 0.000 abstract 1
- 230000001717 pathogenic effect Effects 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 231100000915 pathological change Toxicity 0.000 description 5
- 230000036285 pathological change Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007659 motor function Effects 0.000 description 3
- 206010061218 Inflammation Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 208000018650 Intervertebral disc disease Diseases 0.000 description 1
- 230000001363 autoimmune Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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
Landscapes
- 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 relates to an artificial disc. The artificial disc mainly comprises an upper cover plate, a lower cover plate and a sliding kernel, wherein the sliding kernel is ellipsoidal; the upper and lower cover plates are covered on the upper part and the lower part of the sliding kernel respectively; and a distance exists between the upper and lower cover plates. The artificial disc of the utility model has the advantages of replacing a pathogenic intervertebral disc, acting the function of the intervertebral disc, keeping a motion segment, keeping the motion function of an intervertebral joint on the segment, effectively preventing the stress increase of an adjacent segment and reducing the secondary degeneration of the adjacent segment.
Description
Technical field
This utility model relates to a kind of surgery implanting prosthetic, particularly a kind of artificial intervertebral disk.
Background technology
The intervertebral fusion operation is the important method of disorder of the vertebral column such as treatment unstable spine disease, spondylolishesis disease and degenerated spine lateral bending, it adopts the on-fixed mode, spinal fusion device is implanted, and replace ill intervertebral disc, the vertebrae that connects pathological changes, the position of slippage is recovered, thereby recover the function of patient's spinal column.
Though above-mentioned vertebrae mixer can recover the stability of spinal column after implantation, but what the operation sections obtained is the stable of a kind of non-physiological state, lost corresponding motion segment, sacrificed the corresponding sections of spinal column bend over, face upward body, about mobility such as reverse, cause breast lumbar vertebra total range of motion and range of activity to reduce, fusion device can not well match with ill spinal column, and stress concentration is between adjacent awl, and regression appears in adjacent segment to be accelerated.Follow up a case by regular visits to confirmation according to case, the Secondary cases of adjacent segment is changed in quality and instability can cause original symptomatic recurrence or increases the weight of behind the fusion, and become a key factor that influences operative treatment intervertebral disc disorder late result, more obvious in the multi-segmental spinal fusion is fixing especially, some patients even need accept the fusion of adjacent segment once more.
This shows that above-mentioned existing Invasive lumbar fusion device obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.How to develop and a kind ofly replace the intervertebral disc of pathological changes and exercise its function, keep motion segment, the motor function that keeps joint between this sections awl, the stress that effectively prevents adjacent segment increases, and the artificial intervertebral disk of the new structure of minimizing adjacent segment Secondary cases regression, be one of current important research and development problem in this area.
The utility model content
The purpose of this utility model is, overcome the defective that existing Invasive lumbar fusion device exists, and provide a kind of artificial intervertebral disk of new structure, technical problem to be solved is to make it can replace the intervertebral disc of pathological changes and exercise its function, keep motion segment, keep the motor function in joint between this sections awl, prevent that effectively the stress of adjacent segment from increasing, and reduce the regression of adjacent segment Secondary cases, thereby be suitable for practicality more.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of artificial intervertebral disk that the utility model proposes, mainly form by the upper and lower cover plate and the nuclear that slides, wherein: the nuclear that slides is elliposoidal; Upper and lower cover plate covers at the upper and lower of nuclear of sliding respectively, and has spacing between the upper and lower cover plate.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid artificial intervertebral disk, the upper surface of described upper cover plate are elliptic plane, the depression that lower surface is provided with and the nuclear top of sliding is complementary; The lower surface of lower cover is an elliptic plane, the depression that upper surface is provided with and the nuclear bottom of sliding is complementary.
Aforesaid artificial intervertebral disk is equipped with lobe on the upper surface of described upper cover plate and the lower surface of lower cover.
Aforesaid artificial intervertebral disk, described upper and lower cover plate side is provided with the vertebral body fixed part.
Aforesaid artificial intervertebral disk, described upper and lower cover plate are provided with tilting forward and back of 5 ° and 10 °.
Aforesaid artificial intervertebral disk, described upper and lower cover plate is identical or approximate with area, the shape of human intervertebral disc.
Aforesaid artificial intervertebral disk, the thickness of described slip nuclear is 7mm, 9mm or 11mm.
Aforesaid artificial intervertebral disk, described slip nuclear is the ultra-high molecular weight polyethylene material.
Aforesaid artificial intervertebral disk, described upper and lower cover plate is the vitallium material.
Aforesaid artificial intervertebral disk, described upper and lower cover plate outer surface also is coated with titanium layer and hydroxyapatite layer successively.
In sum, this utility model artificial intervertebral disk can replace the intervertebral disc of pathological changes and exercise its function, keeps motion segment, keeps the motor function in joint between this sections awl, prevents that effectively the stress of adjacent segment from increasing, and reduces the regression of adjacent segment Secondary cases.The utlity model has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing Invasive lumbar fusion device has the effect of enhancement, thereby is suitable for practicality more.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of description, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation of this utility model artificial intervertebral disk.
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
For further setting forth this utility model is to reach technological means and the effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of artificial intervertebral disk, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
See also Fig. 1, shown in Figure 2, this utility model artificial intervertebral disk mainly is made up of upper cover plate 1, lower cover 2 and the nuclear 3 that slides.Wherein, slip nuclear 3 is elliposoidal; Upper and lower cover plate covers at the upper and lower of the nuclear 3 that slides respectively, and spacing slightly between the upper and lower cover plate.
Preferable, the preferred vitallium material of upper and lower cover plate, and spray titanium layer and hydroxyapatite layer successively at outer surface, the combination rate of osseous tissue and prosthese is obviously improved; In shape, the design of the ball-and-socket of the similar artificial hip joint of upper and lower cover plate, identical or approximate with area, the shape of human intervertebral disc; The lower surface of the upper surface of upper cover plate 1 and lower cover 2 is elliptic plane, and is provided with lobe 4 thereon, to fixedly secure with neighbouring vertebra; The depression that the upper surface of the lower surface of upper cover plate 1 and lower cover 2 is respectively equipped with and nuclear 3 upper and lower parts of sliding are complementary is beneficial to upper and lower cover plate and slides closely cooperating and sliding smoothly between the nuclear; Upper and lower cover plate side is provided with vertebral body fixed part 5, to fix by screw and vertebral body, and complication such as prevent postoperative displacement and come off; In addition, be to adapt to L3, L4, front wide and rear narrow anatomical features of L5 stage, upper and lower cover plate is provided with tilting forward and back of 5 ° and 10 °.
Slide and examine 3 preferred ultra-high molecular weight polyethylene materials, have intensity and toughness preferably to guarantee it; The axial thickness of elliposoidal z can be made as 7mm, 9mm, 11mm equidimension, to adapt to the requirement in differing heights awl gap.
Its upper and lower cover plate of this utility model and slip nuclear structure all adopt Bionic Design, and the mechanical characteristic similar to normal disc can be provided, and can easier imitate the dynamic performance of intervertebral disc, and the permission lumbar vertebra bends and stretches, lateral bending, and is unrestricted to the rotation of sagittal axis.And can be different model with product design, art is preceding according to l spine ap ﹠ lat X-ray sheet, measure the transverse diameter and the radius vector of cone, and normal height of boring the gap on the pathological changes gap, the used according to a preliminary estimate cover plate size and the nuclear thickness that slides, select again to implant, adapting to different patients' physiological feature, and load is distributed to bigger zone with the sizable prosthese of vertebral body cross-sectional area.
This utility model artificial intervertebral disk adopts non-fusion technology, regeneration product as vertebrae mixer, not only can remove damage, the intervertebral disc of inflammation regression, reduce autoimmune source and regression intervertebral disc and bring out the material of inflammation with alleviating pain, and height between having recovered to bore, stress conduction and distribution, make the nerve root canal indirect decompression, can recover normal physiological movement function substantially, improved the pressure that closes in the awl gap, and effectively reach and share load, prevent the effect of the stress increase of adjacent segment, the Secondary cases adjacent segment regression of avoiding or reduced traditional fusion to bring is accelerated.The starting point that adopts this utility model to treat is adjacent segment but not operation sections itself has even more important meaning for young and middle-aged patient.
The above, it only is preferred embodiment of the present utility model, be not that this utility model is done any pro forma restriction, though this utility model discloses as above with preferred embodiment, any those skilled in the art, make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents that can utilize above-mentioned announcement, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. an artificial intervertebral disk is characterized in that mainly being made up of the upper and lower cover plate and the nuclear that slides, and wherein: the nuclear that slides is elliposoidal; Upper and lower cover plate covers at the upper and lower of nuclear of sliding respectively, and has spacing between the upper and lower cover plate.
2. artificial intervertebral disk according to claim 1, the upper surface that it is characterized in that described upper cover plate is an elliptic plane, the depression that lower surface is provided with and the nuclear top of sliding is complementary; The lower surface of lower cover is an elliptic plane, the depression that upper surface is provided with and the nuclear bottom of sliding is complementary.
3. artificial intervertebral disk according to claim 2 is characterized in that being equipped with lobe on the lower surface of the upper surface of described upper cover plate and lower cover.
4. artificial intervertebral disk according to claim 1 is characterized in that described upper and lower cover plate side is provided with the vertebral body fixed part.
5. artificial intervertebral disk according to claim 1 is characterized in that described upper and lower cover plate is provided with tilting forward and back of 5 ° and 10 °.
6. artificial intervertebral disk according to claim 1 is characterized in that described upper and lower cover plate is identical or approximate with area, the shape of human intervertebral disc.
7. artificial intervertebral disk according to claim 1 is characterized in that the thickness of described slip nuclear is 7mm, 9mm or 11mm.
8. according to the described artificial intervertebral disk of the arbitrary claim of claim 1-6, it is characterized in that described slip nuclear is the ultra-high molecular weight polyethylene material.
9. artificial intervertebral disk according to claim 7 is characterized in that described upper and lower cover plate is the vitallium material.
10. artificial intervertebral disk according to claim 9 is characterized in that described upper and lower cover plate outer surface also is coated with titanium layer and hydroxyapatite layer successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202477775U CN201719410U (en) | 2010-06-23 | 2010-06-23 | Artificial disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202477775U CN201719410U (en) | 2010-06-23 | 2010-06-23 | Artificial disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201719410U true CN201719410U (en) | 2011-01-26 |
Family
ID=43487677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202477775U Expired - Lifetime CN201719410U (en) | 2010-06-23 | 2010-06-23 | Artificial disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201719410U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105889A (en) * | 2015-08-31 | 2015-12-02 | 深圳清华大学研究院 | Artificial lumbar intervertebral disc prosthesis |
| CN105105890A (en) * | 2015-08-31 | 2015-12-02 | 北京市春立正达医疗器械股份有限公司 | Cervical vertebrae inter-vertebral disc prosthesis |
| CN107049563A (en) * | 2017-04-19 | 2017-08-18 | 北京爱康宜诚医疗器材有限公司 | Intervertebral disk prosthesis |
| CN112451182A (en) * | 2020-11-27 | 2021-03-09 | 汕头大学医学院第二附属医院 | XJ bionic artificial intervertebral joint |
-
2010
- 2010-06-23 CN CN2010202477775U patent/CN201719410U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105889A (en) * | 2015-08-31 | 2015-12-02 | 深圳清华大学研究院 | Artificial lumbar intervertebral disc prosthesis |
| CN105105890A (en) * | 2015-08-31 | 2015-12-02 | 北京市春立正达医疗器械股份有限公司 | Cervical vertebrae inter-vertebral disc prosthesis |
| CN107049563A (en) * | 2017-04-19 | 2017-08-18 | 北京爱康宜诚医疗器材有限公司 | Intervertebral disk prosthesis |
| CN107049563B (en) * | 2017-04-19 | 2020-02-07 | 北京爱康宜诚医疗器材有限公司 | Intervertebral disc prosthesis |
| CN112451182A (en) * | 2020-11-27 | 2021-03-09 | 汕头大学医学院第二附属医院 | XJ bionic artificial intervertebral joint |
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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: BEIJING CHUNLIZHENGDA TECHNOLOGY + DEVELOPMENT CO. Free format text: FORMER NAME: BEIJING CITY CHUNLI ZHENGDA TECHNOLOGY + DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 101112 Beijing city Golden Triangle town Huoxian Tongzhou District Development Zone Xin Mi Road No. 17 Patentee after: Beijing Chunlizhengda Medical Instrument Co., Ltd. Address before: 101112 Beijing city Golden Triangle town Huoxian Tongzhou District Development Zone Xin Mi Road No. 17 Patentee before: Beijing Chunlizhengda Technology & Development Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |