CN205094720U - Artifical neck intervertebral disc based on centrum physiological curvature - Google Patents
Artifical neck intervertebral disc based on centrum physiological curvature Download PDFInfo
- Publication number
- CN205094720U CN205094720U CN201520849821.2U CN201520849821U CN205094720U CN 205094720 U CN205094720 U CN 205094720U CN 201520849821 U CN201520849821 U CN 201520849821U CN 205094720 U CN205094720 U CN 205094720U
- Authority
- CN
- China
- Prior art keywords
- lower shoe
- upper plate
- artificial disc
- plate
- vertebral body
- 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 - Fee Related
Links
Abstract
The utility model discloses an artifical neck intervertebral disc based on centrum physiological curvature, including upper plate and lower plate, wherein the upper surface of upper plate is the arc on the sagittal position to agree with mutually with the physiology curved surface of the lower soleplate of the upper cone of intervertebral disc, the lower surface of lower plate is the arc on the position is described to the hat to agree with mutually with the physiology curved surface of the last soleplate of the next cone of intervertebral disc, the lower surface of upper plate is equipped with the globular thing of hemispherical protrusion, and ellipse ball grooves has been seted up to the upper surface of lower plate, and the globular thing of protrusion constitutes ball groove joint with the cooperation of ellipse ball grooves, still be equipped with on upper plate and the lower plate and be arranged in preventing baffle and the sawtooth of this manual work neck intervertebral disc in installation and use aversion. The utility model provides a physiology curved surface of centrum about artifical neck intervertebral disc can keep to furthest resumes the natural physiological state of cervical vertebra, reduces polishing of operation in -process, reduces postoperative complication.
Description
Technical field
This utility model belongs to field of medical products, is specifically related to a kind of cervical artificial disc based on vertebral body physiological camber.
Background technology
Human cervical spine is the minimum but sections that motility is maximum, movable frequency is the highest of volume in spinal column.Owing to constantly bearing various load, strain, and the prolongation of the average life span, because the sickness rate of the cervical vertebra instability caused by degeneration, prolapse of cervical intervertebral disc and cervical spondylosis is more and more higher.Cervical artificial disc replacement can carry out spinal decompression and provide stable while keep the physiological activity degree of operated level, more meet the biomechanics characteristic of cervical vertebra moving, neighbouring section intervertebral disc degeneration can be avoided to accelerate.In recent years, cervical artificial disc replacement is used widely, and the cervical artificial disc of main application clinically at present has Bryan prosthese, Prodisc-C prosthese, Prestige prosthese, PCM prosthese, Discover prosthese, Mobi-C prosthese etc.Although the material of various prosthese, to come in every shape, but existing cervical artificial disc product and upper hypocentrum contact surface are mean water level, from vertebral body normal physiological conditions lower be that curved surface is different, need polishing soleplate degree large, little with vertebral body contact area, easily cause the complication such as prosthese sinking, loose shift, ectopic ossification and spontaneous fusion.
Utility model content
The purpose of this utility model is to provide a kind of cervical artificial disc based on vertebral body physiological camber, can keep the physiology curved surface of hypocentrum, to recover the natural physiological status of cervical vertebra to greatest extent, reduces the polishing in operation process, reduces post-operative complication.
For achieving the above object, the technical solution adopted in the utility model is:
Based on a cervical artificial disc for vertebral body physiological camber, comprise upper plate and lower shoe, wherein the upper surface of upper plate is curved in sagittal plain, and agrees with mutually with the physiology curved surface of the lower soleplate of the upper cone of intervertebral disc; The lower surface of lower shoe is curved on Coronal, and agrees with mutually with the physiology curved surface of the upper soleplate of the next cone of intervertebral disc; The lower surface of upper plate is provided with hemispheric protrusion sphere, and the upper surface of lower shoe offers elliposoidal groove, and protrusion sphere and elliposoidal groove fit form ball groove joint; Upper plate and lower shoe are also provided with for preventing this cervical artificial disc at the baffle plate installed and be shifted in use procedure and sawtooth.
The sagittal plain diameter of described elliposoidal groove is greater than Coronal diameter, and the upper bottom surface diameter protruding sphere is greater than the major diameter of elliposoidal groove.
Described protrusion sphere is symmetrical about the longitudinal axis of upper plate, and the rear end of protruding the upper bottom surface circumference of sphere and upper plate is tangent; Elliposoidal groove is symmetrical about the longitudinal axis of lower shoe, and the distance that the distance of elliposoidal groove and lower shoe front end is greater than elliposoidal groove and lower shoe rear end is greater than zero; Near the one end at the human body back side when wherein the rear end of upper plate and lower shoe is its installation, near the one end in human body front when the front end of upper plate and lower shoe is its installation.
The front end edge of described upper plate be provided with for prevent upper plate install and in use procedure rearward and the baffle plate of both sides displacement, the front end edge of lower shoe be provided with for prevent lower shoe install and in use procedure rearward and the baffle plate of both sides displacement, wherein the front end of upper plate and lower shoe is its one end near human body front when installing.
The upper surface of described upper plate is provided with some for preventing upper plate at the sawtooth installed and be forwards shifted in use procedure, and the lower surface of lower shoe is provided with some for preventing lower shoe at the sawtooth installed and be forwards shifted in use procedure.
The sawtooth on described upper plate and lower shoe surface is horizontal by right angle trigonometry body shape, and wherein the vertical plane of right angle trigonometry body is positioned on human coronary face, and the inclined-plane of right angle trigonometry body is positioned at the rear of vertical plane.
The thickness of described lower shoe is greater than the thickness of upper plate.
The back end edge foot of the upper surface of described lower shoe adopts hypotenuse transition, and the rear end of lower surface is provided with chamfering, near the one end at the human body back side when wherein the rear end of lower shoe is lower shoe installation.
The material of described upper plate, lower shoe, protrusion sphere, baffle plate and sawtooth is titanium pottery alloy.
Relative to prior art, the beneficial effects of the utility model are:
The cervical artificial disc based on vertebral body physiological camber that this utility model provides is made up of upper and lower two base plates and a ball groove joint, wherein the upper surface of upper plate is curved in sagittal plain, can agree with mutually with the physiology curved surface of the lower soleplate of the upper cone of intervertebral disc, the lower surface of lower shoe is curved on Coronal, can agree with mutually with the physiology curved surface of the upper soleplate of the next cone of intervertebral disc.The upper and lower bottom plate of the cervical artificial disc that this utility model provides all adopts curved surface, the physiology curved surface of hypocentrum can be kept, to recover the natural physiological status of cervical vertebra to greatest extent, compared with the horizontal plane of existing most of prosthese, decrease the polishing to upper and lower soleplate in operation process, can operating time be shortened, reduce unnecessary surgical injury; And add the identical area of cervical artificial disc and upper hypocentrum, effectively can prevent that the prosthese that causes because identical area is too small from sinking, the post-operative complication such as ectopic ossification and spontaneous fusion; And the axial stress of cervical vertebra after implant into body, can be reduced, and increase the frictional force on horizontal plane, make cervical artificial disc not easily loose shift occur, and prevent the collapsed fracture of vertebral body.
Further, it is the design of ball groove between the upper plate of the cervical artificial disc that this utility model provides and lower shoe, the lower surface of upper plate is connected with protrusion sphere, the upper surface of lower shoe is provided with elliposoidal groove, protrusion sphere and elliposoidal groove fit form ball groove joint, and the sagittal plain diameter of elliposoidal groove is greater than Coronal diameter, the base diameter protruding sphere is greater than the major diameter of elliposoidal groove, so just can make upper plate while left and right all directions rotate forwards, backwards, its center of rotation can also carry out displacement by a small margin in sagittal plain, more close to the movable function of human intervertebral disc, make mobility satisfaction more.
Further, the upper plate of the cervical artificial disc that this utility model provides and lower shoe are also provided with for preventing it at the sawtooth installed and be forwards shifted in use procedure, sawtooth is horizontal by right angle trigonometry body shape, wherein vertical plane is positioned at human coronary face, cervical artificial disc is facilitated to implant between upper hypocentrum, and timely stability can be provided after implanting, and prevent upper and lower bottom plate from shifting forward.And the front end of the upper plate of the cervical artificial disc that this utility model provides and lower shoe be also provided with for prevent its install and use procedure in rearward and both sides displacement baffle plate, the coronalplane of baffle plate and upper and lower bottom plate at an angle, conical surface can be close to, timely stability is provided, prevents upper and lower bottom plate rearward and two Slideslips.
Further, the back end edge foot of the upper surface of the lower shoe of the cervical artificial disc that this utility model provides adopts hypotenuse transition, the rear end of lower surface is provided with chamfering, and the physiology curved surface of the upper soleplate of the next cone of its shape and intervertebral disc is agreed with mutually more, and fitness promotes further.
Accompanying drawing explanation
The upper plate top view of the cervical artificial disc that Fig. 1 provides for this utility model;
The lower shoe top view of the cervical artificial disc that Fig. 2 provides for this utility model;
The front view of the cervical artificial disc that Fig. 3 provides for this utility model;
The side view of the cervical artificial disc that Fig. 4 provides for this utility model;
The graphics of the cervical artificial disc that Fig. 5 provides for this utility model;
Wherein: 1 is upper plate, 2 is baffle plate, and 3 is sawtooth, and 4 is lower shoe, and 5 for protruding sphere, and 6 is elliposoidal groove.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further details.
This utility model provides a kind of for displacing the intervertebral disc that pathological changes occurs in cervical vertebra (C3-7), with to cervical vertebral space decompression, maintains cervical vertebral space height and recovers the cervical artificial disc of its normal physiological activity function.
See Fig. 1 to Fig. 5, the cervical artificial disc based on vertebral body physiological camber that this utility model provides, comprise upper plate 1 and lower shoe 4, wherein the upper surface of upper plate 1 is curved in sagittal plain, and agrees with mutually with the physiology curved surface of the lower soleplate of the upper cone of intervertebral disc; The lower surface of lower shoe 4 is curved on Coronal, and agrees with mutually with the physiology curved surface of the upper soleplate of the next cone of intervertebral disc.The thickness of lower shoe 4 is greater than the thickness of upper plate 1.The lower surface of upper plate 1 is provided with hemispheric protrusion sphere 5, protrudes sphere 5 symmetrical about the longitudinal axis of upper plate 1, and the rear end of protruding the upper bottom surface circumference of sphere 5 and upper plate 1 is tangent.The upper surface of lower shoe 4 offers elliposoidal groove 6, the sagittal plain diameter of elliposoidal groove 6 is greater than Coronal diameter, elliposoidal groove 6 is symmetrical about the longitudinal axis of lower shoe 4, and the distance that elliposoidal groove 6 and the distance of lower shoe 4 front end are greater than elliposoidal groove 6 and lower shoe 4 rear end is greater than zero.Protrude sphere 5 to coordinate with elliposoidal groove 6 and form ball groove joint, the upper bottom surface diameter of protrusion sphere 5 is greater than the major diameter of elliposoidal groove 6.The front end edge of upper plate 1 be provided with for prevent upper plate 1 install and in use procedure rearward and the baffle plate 2 of both sides displacement, the front end edge of lower shoe 4 be provided with for prevent lower shoe 4 install and in use procedure rearward and the baffle plate 2 of both sides displacement.The upper surface of upper plate 1 is provided with some for preventing upper plate 1 at the sawtooth 3 installed and be forwards shifted in use procedure, and the lower surface of lower shoe 4 is provided with some for preventing lower shoe 4 at the sawtooth 3 installed and be forwards shifted in use procedure.Sawtooth 3 is horizontal by right angle trigonometry body shape, and the vertical plane of right angle trigonometry body is positioned on human coronary face, and the inclined-plane of right angle trigonometry body is positioned at the rear of vertical plane.The back end edge foot of the upper surface of lower shoe 4 adopts hypotenuse transition, and the rear end of lower surface is provided with chamfering.Near the one end in human body front when wherein the front end of upper plate 1 and lower shoe 4 is its installation, near the one end at the human body back side when rear end of upper plate 1 and lower shoe 4 is its installation.
The material of the cervical artificial disc based on vertebral body physiological camber that this utility model provides is: the material of upper plate 1, lower shoe 4, protrusion sphere 5, baffle plate 2 and sawtooth 3 is titanium pottery alloy; The surface of upper plate 1, lower shoe 4, protrusion sphere 5, elliposoidal groove 6, baffle plate 2 and sawtooth 3 is equipped with the mixture coating of titanium valve and hydroxyapatite.
Specifically being of a size of of the cervical artificial disc based on vertebral body physiological camber that this utility model provides: the length of upper plate 1 is 15-22mm, and width is 12-20mm, and thickness is 1.2-1.6mm; The length of lower shoe 4 is 15-22mm, and width is 12-20mm, and thickness is 2.8-3.2mm; The length of the baffle plate 2 on upper plate 1 is 2-4mm, and width is 0.5-1mm, is highly 3-5mm; The length of the baffle plate 2 on lower shoe 4 is 2-4mm, and width is 0.5-1mm, is highly 4-6mm; The length of sawtooth 3 is 1.4-2mm, and width is 0.7-1mm, is highly 1.5-2mm; The radius of a circle that protrusion sphere 5 connects with upper plate 1 is 4.5-6.5mm; The major radius of elliposoidal groove 6 is 4-7mm, and short radius is 3.5-5mm; The total height protruding the ball groove joint that sphere 5 is formed with elliposoidal groove 6 is 6-9mm (upper and lower bottom plate does not count the peak wire length of sawtooth in).
This utility model is in order to solve prior art Problems existing, a kind of cervical artificial disc is provided, be made up of upper and lower two base plates and a ball groove joint, its special character is: the upper surface of upper plate is curved in sagittal plain, can agree with soleplate under vertebral body, the lower surface of lower shoe is curved on Coronal, and soleplate rear in obtuse angle, can agree with the upper soleplate of vertebral body, it is the design of ball groove between upper plate and lower shoe, the lower surface of upper plate is connected with protrusion sphere, the upper surface of lower shoe is provided with elliposoidal groove, the sagittal plain diameter of elliposoidal groove is greater than Coronal diameter.The base diameter protruding sphere is greater than the major diameter of elliposoidal groove.Upper plate and lower shoe surface have two rows, 6 sawtooth to prevent prosthese from shifting forward respectively, respectively there is the baffle plate of an oblique inner side upper plate and both sides, lower shoe front, and (baffle plate angle of inclination is 10-20 °, namely the angle of the front end face of baffle plate and upper and lower bottom plate is 10-20 °), prevent upper and lower bottom plate rearward and both sides displacement.The surface spraying titanium valve of upper and lower bottom plate and hydroxyapatite.Cervical artificial disc entirety of the present utility model adopts titanium pottery alloy material to make.
Upper and lower bottom plate is all curved, and the lower soleplate of cone upper with intervertebral disc and the upper soleplate of the next vertebral body are connected respectively, and the cambered surface thickness of lower shoe is greater than upper plate, agree with mutually with the physiology curved surface of terminal plate of vertebral body.Trough for used balls design is adopted in coupling part, and groove adopts elliposoidal, and while so just enabling prosthese left and right all directions rotation forwards, backwards, its center of rotation can also carry out displacement by a small margin in sagittal plain, more close to the movable function of human intervertebral disc.The sawtooth on upper and lower bottom plate surface is horizontal by right angle trigonometry body shape, wherein vertical plane is positioned at human coronary face, timely stability can be provided after implantation, and prevent prosthese from shifting forward, the baffle plate of both sides, upper and lower bottom plate front and coronalplane are at an angle, can conical surface be close to, timely stability is provided, prevent prosthese rearward and two Slideslips.Upper and lower bottom plate surface spraying titanium valve and hydroxyapatite, be conducive to bone tissue growth, fix.
During the cervical artificial disc using this utility model to provide, be separated soft tissue through anterior cervical operation, remove the cervical intervertebral disk of pathological changes, fully reduce pressure, implanting prosthetic (cervical artificial disc of the present utility model) after polishing soleplate.Due to the curved design of the distinctive upper and lower bottom plate of cervical artificial disc of the present utility model, easier during polishing soleplate, required time is relatively few, after inserting human body, the rotation that existence due to ball groove joint can make upper and lower bottom plate drive upper hypocentrum to keep all around, and be greater than footpath, left and right due to the anteroposterior diameter of oval-shaped groove, center of rotation can be movable in sagittal plain, more meet the physiological structure of human body, increase mobility.4 baffle plates are connected with upper and lower bottom plate leading edge, and due to baffle plate be oblique in direction, can prevent prosthese rearward and both sides loose shift, the sawtooth of upper and lower has the gradient from high to low after by forward direction, this design facilitates on Using prosthesis between hypocentrum, and prevents prosthese loose shift forward.Upper and lower bottom plate coats titanium valve and hydroxyapatite, can promote bone tissue growth, make upper vertebral body and upper plate, the next vertebral body and lower shoe fully fixing.
The utility model has the advantage of: upper and lower bottom plate all adopts curved surface, compared with the horizontal plane of existing most of prosthese, decrease the polishing to upper and lower soleplate in operation process, can operating time be shortened, reduce unnecessary surgical injury; And add the identical area of cervical artificial disc and upper hypocentrum, effectively can prevent that the prosthese that causes because identical area is too small from sinking, the post-operative complication such as ectopic ossification and spontaneous fusion; The axial stress of cervical vertebra can be reduced after implant into body, and increase the frictional force on horizontal plane, make prosthese not easily loose shift occur, and prevent the collapsed fracture of vertebral body.Trough for used balls design is adopted in coupling part, makes center of rotation can have displacement to a certain degree in sagittal plain, makes mobility satisfaction more.Adopt four pieces of baffle plates in each six pieces of sawtooth of upper and lower bottom plate and prosthese front to prevent prosthetic loosening to be shifted, timely stability is strengthened further.Upper and lower bottom plate surface spraying titanium valve and hydroxyapatite, be conducive to bone tissue growth, fix.
Above-mentioned particular content in conjunction with the accompanying drawings just schematically; not form the restriction to this utility model protection domain; belonging on the basis of the cervical artificial disc based on vertebral body physiological camber that provides at this utility model of the research worker in field, do not need to pay creative work and the various amendment made or distortion still in protection domain of the present utility model.
Claims (9)
1. the cervical artificial disc based on vertebral body physiological camber, it is characterized in that: comprise upper plate (1) and lower shoe (4), wherein the upper surface of upper plate (1) is curved in sagittal plain, and agrees with mutually with the physiology curved surface of the lower soleplate of the upper cone of intervertebral disc; The lower surface of lower shoe (4) is curved on Coronal, and agrees with mutually with the physiology curved surface of the upper soleplate of the next cone of intervertebral disc; The lower surface of upper plate (1) is provided with hemispheric protrusion sphere (5), the upper surface of lower shoe (4) offers elliposoidal groove (6), and protrudes sphere (5) and coordinate with elliposoidal groove (6) and form ball groove joint; Upper plate (1) and lower shoe (4) are also provided with for preventing this cervical artificial disc at the baffle plate (2) installed and be shifted in use procedure and sawtooth (3).
2. the cervical artificial disc based on vertebral body physiological camber according to claim 1, it is characterized in that: the sagittal plain diameter of described elliposoidal groove (6) is greater than Coronal diameter, and the upper bottom surface diameter protruding sphere (5) is greater than the major diameter of elliposoidal groove (6).
3. the cervical artificial disc based on vertebral body physiological camber according to claim 1 and 2, it is characterized in that: described protrusion sphere (5) is symmetrical about the longitudinal axis of upper plate (1), and the rear end of protruding the upper bottom surface circumference of sphere (5) and upper plate (1) is tangent; Elliposoidal groove (6) is symmetrical about the longitudinal axis of lower shoe (4), and the distance that elliposoidal groove (6) and the distance of lower shoe (4) front end are greater than elliposoidal groove (6) and lower shoe (4) rear end is greater than zero; Near the one end at the human body back side when wherein the rear end of upper plate (1) and lower shoe (4) is its installation, near the one end in human body front when the front end of upper plate (1) and lower shoe (4) is its installation.
4. the cervical artificial disc based on vertebral body physiological camber according to claim 1 and 2, it is characterized in that: the front end edge of described upper plate (1) be provided with for prevent upper plate (1) install and in use procedure rearward and the baffle plate (2) of both sides displacement, the front end edge of lower shoe (4) be provided with for prevent lower shoe (4) install and in use procedure rearward and the baffle plate (2) of both sides displacement, near the one end in human body front when wherein the front end of upper plate (1) and lower shoe (4) is its installation.
5. the cervical artificial disc based on vertebral body physiological camber according to claim 4, it is characterized in that: the upper surface of described upper plate (1) is provided with some for preventing upper plate (1) at the sawtooth (3) installed and be forwards shifted in use procedure, the lower surface of lower shoe (4) is provided with some for preventing lower shoe (4) at the sawtooth (3) installed and be forwards shifted in use procedure.
6. the cervical artificial disc based on vertebral body physiological camber according to claim 5, it is characterized in that: the sawtooth (3) on described upper plate (1) and lower shoe (4) surface is horizontal by right angle trigonometry body shape, wherein the vertical plane of right angle trigonometry body is positioned on human coronary face, and the inclined-plane of right angle trigonometry body is positioned at the rear of vertical plane.
7. the cervical artificial disc based on vertebral body physiological camber according to claim 1 and 2, is characterized in that: the thickness of described lower shoe (4) is greater than the thickness of upper plate (1).
8. the cervical artificial disc based on vertebral body physiological camber according to claim 1 and 2, it is characterized in that: the back end edge foot of the upper surface of described lower shoe (4) adopts hypotenuse transition, the rear end of lower surface is provided with chamfering, near the one end at the human body back side when wherein the rear end of lower shoe (4) is lower shoe (4) installation.
9. the cervical artificial disc based on vertebral body physiological camber according to claim 1 and 2, is characterized in that: described upper plate (1), lower shoe (4), protrude sphere (5), the material of baffle plate (2) and sawtooth (3) is titanium and makes pottery alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849821.2U CN205094720U (en) | 2015-10-29 | 2015-10-29 | Artifical neck intervertebral disc based on centrum physiological curvature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849821.2U CN205094720U (en) | 2015-10-29 | 2015-10-29 | Artifical neck intervertebral disc based on centrum physiological curvature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205094720U true CN205094720U (en) | 2016-03-23 |
Family
ID=55510537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520849821.2U Expired - Fee Related CN205094720U (en) | 2015-10-29 | 2015-10-29 | Artifical neck intervertebral disc based on centrum physiological curvature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205094720U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106890037A (en) * | 2017-04-10 | 2017-06-27 | 北京大学人民医院 | One kind can extend artificial vertebral body in vivo |
| CN107374790A (en) * | 2017-08-18 | 2017-11-24 | 中国医科大学附属第医院 | A kind of porous soleplate formula cervical artificial disc prosthese |
| CN108095863A (en) * | 2018-01-20 | 2018-06-01 | 西安市红会医院 | A kind of 3D printing cervical artificial disc prosthese |
| CN111938880A (en) * | 2020-08-18 | 2020-11-17 | 四川大学华西医院 | Artificial cervical intervertebral disc device and cover film suitable for same |
-
2015
- 2015-10-29 CN CN201520849821.2U patent/CN205094720U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106890037A (en) * | 2017-04-10 | 2017-06-27 | 北京大学人民医院 | One kind can extend artificial vertebral body in vivo |
| CN107374790A (en) * | 2017-08-18 | 2017-11-24 | 中国医科大学附属第医院 | A kind of porous soleplate formula cervical artificial disc prosthese |
| CN108095863A (en) * | 2018-01-20 | 2018-06-01 | 西安市红会医院 | A kind of 3D printing cervical artificial disc prosthese |
| CN111938880A (en) * | 2020-08-18 | 2020-11-17 | 四川大学华西医院 | Artificial cervical intervertebral disc device and cover film suitable for same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205094720U (en) | Artifical neck intervertebral disc based on centrum physiological curvature | |
| JP4980225B2 (en) | Lumbar and cervical intervertebral disc prosthesis with a cylindrical articulating surface curved surface bent laterally | |
| CN201529176U (en) | Embedded bone trabecula intervertebral fusion device used for anastomosing vertebra | |
| CN108403262B (en) | Femoral stem prosthesis | |
| CN101065081A (en) | Angular sliding core, also used as a component of an intervertebral disk endoprosthesis, for the lumbar column and the vertical column | |
| JP2008516647A (en) | Lumbar and cervical disc prosthesis with physiological movement | |
| CN105853031B (en) | A kind of bionical anti-artificial lumbar vertebrae of dislocation and interverbebral disc junctional complex | |
| CN105105889B (en) | A kind of artificial lumbar disc prostheses | |
| CN208464352U (en) | A kind of porous cervical fusion cage | |
| CN204839839U (en) | Artificial intervertebral disc | |
| CN211409540U (en) | Femoral stem prosthesis and artificial hip joint prosthesis | |
| CN107374790A (en) | A kind of porous soleplate formula cervical artificial disc prosthese | |
| CN107802383A (en) | Lumbar vertebrae Invasive lumbar fusion device with Bone Ingrowth micropore | |
| CN201542778U (en) | Vertical-trough handle hip-joint prosthesis | |
| CN103300948B (en) | A kind of Ω type cervical artificial disc implanting prosthetic with the two-way retaining pawl of rhombus | |
| CN204274724U (en) | Cervical intervertebral disc prosthesis | |
| CN204863560U (en) | Acetabular cup false body | |
| CN108969157B (en) | Highly bionic intervertebral motion retaining device | |
| CN201977964U (en) | Artificial intervertebral disc | |
| CN203354707U (en) | Self-adjusting bone trabecula artificial intervertebral disk | |
| CN103315830B (en) | Omega-shaped artificial cervical disc implantation prosthesis with inverted-V-shaped two-way stopping inverted teeth | |
| KR102168619B1 (en) | A cobra type femoral stem prosthesis | |
| CN200987698Y (en) | Lumbar vertebrae intervertebral fuse | |
| CN101507663B (en) | Emulated artificial spine | |
| CN201365987Y (en) | Simulation artificial vertebral column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20161029 |