CN108938151A - A kind of elasticity intervertebral disk prosthesis - Google Patents
A kind of elasticity intervertebral disk prosthesis Download PDFInfo
- Publication number
- CN108938151A CN108938151A CN201810901575.9A CN201810901575A CN108938151A CN 108938151 A CN108938151 A CN 108938151A CN 201810901575 A CN201810901575 A CN 201810901575A CN 108938151 A CN108938151 A CN 108938151A
- Authority
- CN
- China
- Prior art keywords
- elastomer
- intervertebral disk
- metal
- fixed
- group
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 43
- 229920001971 elastomer Polymers 0.000 claims abstract description 32
- 239000000806 elastomer Substances 0.000 claims abstract description 32
- 230000006835 compression Effects 0.000 claims abstract description 25
- 238000007906 compression Methods 0.000 claims abstract description 25
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 20
- 239000010936 titanium Substances 0.000 claims description 20
- 229910052719 titanium Inorganic materials 0.000 claims description 20
- 210000002445 nipple Anatomy 0.000 claims description 12
- 238000004073 vulcanization Methods 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims 1
- 239000002861 polymer material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
Abstract
The present invention relates to a kind of elastic intervertebral disk prosthesis, the elasticity intervertebral disk prosthesis includes the top plate, elastomer and bottom plate being sequentially coaxially arranged from top to bottom, it is characterized in that, being symmetrically distributed with two groups of metal drag-lines in the centre bore of the elastomer with linear state, each group of metal drag-line is at least three；Diameter matched top board and lower platen are respectively equipped in circular groove set by the elastomer both ends, wherein the via hole equal with one group of metal drag-line quantity is respectively symmetrically distributed in the axis on the top board and lower platen around the elastomer；Two groups of metal drag-lines, one group of following is fixed on lower platen, top passes through corresponding via hole on the top board and is fixed on the top plate, and another group of top is fixed on top board, and following passes through corresponding via hole on lower platen and is fixed on the bottom plate.This intervertebral disk prosthesis all has buffer function under compression, stretching even rotation and curved load, and stability is good, bionical excellent result.
Description
Technical field
The present invention relates to can be transplanted to intracorporal prosthese, and in particular to the artificial prosthesis for spinal disc.
Background technique
Backbone is made of vertebrae and interverbebral disc, is a kind of quite soft movable structure of energy again.The activity of backbone is depended on
In the complete of interverbebral disc, the harmony being related between vertebrae articular process.Interverbebral disc has the characteristics that viscoplasticity, and human body fortune can be absorbed
It is dynamic, alleviate shock loading and brings damage to the human body.Backbone regression or wound are likely to result in the funeral of vertebra osteoarticular function
It loses, therefore generallys use spinal disc displacement clinically to carry out repairing and treating.
The application for a patent for invention of Publication No. CN 1925815A discloses a kind of " modular intervertebral disk prosthesis ", the vertebra
Between disc prosthesis one central part clamped by upper and lower two pieces of agproximation plates constitute, wherein the central part includes bellows, the bellows
Both ends are equipped with soleplate, and inside is equipped with butterfly spring group and helical spring, and the helical spring is located at the center of butterfly spring group
In hole, both ends are acted on the soleplate；The spring characteristic curve f of the central part has in the first subregion in 450N/mm
Spring rate between 550N/mm, and there is the spring rate between 1400N/mm and 1600N/mm in the second subregion.
According to the description of the patent application specification, central part of the spring rate between 450N/mm and 550N/mm is suitable for 40-
The load of the patient of 65kg weight, the central part between 1400N/mm and 1600N/mm are suitable for the negative of the patient of 60-100kg weight
It carries.Description prompt, doctor will select the spring rate of the central part according to the patient weight load carried.But
The widely dispersed of patient body weight, it is only tens kilograms light, and weight then has one two hundred kilograms, and the intervertebral of different location
The load great disparity that disk is undertaken is very big, as long as such as cervical intervertebral disk carrier head weight, and lumber ertebral disc will carry on entire
The weight of body.Therefore the scheme of above-mentioned patent application, will select to design the central part spring rate according to specific case
Big difficulty is foreseeable.If the spring rate of the central part is excessive, it is clear that buffer function is not had, if in described
The spring rate of heart part is too small, and stability can cause the clinical responses such as dizziness with regard to poor.In addition, the scheme of above-mentioned patent application is also
There are buffer function, let alone what stability are not just had when tension (such as when pitching by bus) at all, because
Butterfly spring group described in when stretching does not work.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of elastic intervertebral disk prosthesis, which is being pressed
Contracting stretches and all has buffer function under even rotation and curved load, and stability is good, bionical excellent result.
The technical solution that the present invention solves above-mentioned technical problem is:
A kind of elasticity intervertebral disk prosthesis, which includes the top plate being sequentially coaxially arranged from top to bottom, bullet
Property body and bottom plate, which is characterized in that
The edge of the cover top surface and lower surface of base plate the same side is respectively symmetrically set there are two lug, each lug
On be respectively equipped with sphere hole；
The elastomer includes metal compression coil spring, and vulcanization is enclosed with medical height on the metal compression coil spring
Molecular material forms cylindrical tube, and with respect to the helicla flute for the V-shaped for being equipped with accumbency on the vulcanization wrapping layer of inside and outside wall；Described
Helicla flute is located between two adjacent wires of the metal compression coil spring, and helical angle and the metal compression coil bullet
The helical angle of spring is consistent；
The middle part of the elastomer both ends of the surface removes the vulcanization wrapping layer and is respectively formed a circular groove, and the circle is recessed
The end face of the metal compression coil spring is exposed in the bottom surface of slot, and diameter is greater than the internal diameter of the metal compression coil spring,
Less than the outer diameter of the metal compression coil spring；Two groups of gold are symmetrically distributed with linear state in the centre bore of the elastomer
Belong to drag-line, each group of metal drag-line is at least three；Be respectively equipped in circular groove set by the elastomer both ends diameter with
The top board to match and lower platen, wherein the axis on the top board and lower platen around the elastomer respectively symmetrically divides
It is furnished with the via hole equal with one group of metal drag-line quantity；Two groups of metal drag-lines, one group of following are fixed on lower platen,
Top passes through corresponding via hole on the top board and is fixed on the top plate, and another group of top is fixed on top board, under
Head passes through corresponding via hole on lower platen and is fixed on the bottom plate；
Two groups of metal drag-lines are tensioned, keep the distance between the top plate and bottom plate default equal to the elastomer to be compressed to
The length of initial stiffness.
In order to accurately preset the initial stiffness of the elastomer, an improvement project of the invention is the top
The quantity upper and lower perforative counterbore equal with one group of metal drag-line radical is respectively equipped on plate and bottom plate；Two groups of metals are drawn
Rope, one group of top are equipped with nipple and are fixed by nuts on the top plate respectively in corresponding counterbore, another group
Following is equipped with nipple and is fixed by nuts on the bottom plate respectively in corresponding counterbore.
In order to make prosthese and adjacent vertebra preferably realizes bone fusion, in the cover top surface and lower surface of base plate
Be distributed with several rise it is prominent.
In above scheme, the nonbiodegradable medical macromolecular materials can be the poly- ammonia of polyurethane, polycarbonate
Ester or polyether-polyurethane, preferably polyurethane.
In above scheme, the preferred medical titanium cable of the metal drag-line.
Elasticity intervertebral disk prosthesis of the present invention has the advantages that:
(1) dexterously to be selected the technical problem for designing the elastomer rigidity simple according to specific case the prior art
The length for presetting the metal drag-line is turned to, so that position carries out phase to the weight and interverbebral disc according to patient in human vertebrae
To accurately presetting, the adaptation range of the intervertebral disk prosthesis of same specification has been expanded significantly.
(2) two-way when resilience of the dynamic loading of human motion greater than initial stiffness set by elastic intervertebral disk prosthesis
Flexible deformation, therefore elastic intervertebral disk prosthesis all has very under compression and tension load (such as when pitching by bus) effect
Good stability.
(3) it is only connected and fixed, be may be not present other by two groups of metal drag-lines between top plate and bottom plate and elastomer
Rigid fixation structure, while the complex spring is made of nonbiodegradable medical macromolecular materials, therefore entire elasticity
Intervertebral disk prosthesis not only can be axially stretched or compress, but also can reverse or be bent microly, and bionical effect has obtained obviously
Improve.
(4) top plate and bottom plate are both provided with two earholes, can by the top plate of prosthese and bottom plate and adjacent vertebra stitching,
It prevents prosthese from shifting after surgery and causes secondary injury.
Detailed description of the invention
Fig. 1~7 are the structural schematic diagram of elastic one specific embodiment of intervertebral disk prosthesis of the present invention, wherein Fig. 1 is
Main view (semi-cutaway), Fig. 2 are top view (right side lug uses partial cutaway), and Fig. 3 is that (right side lug is using part for bottom view
Cut open), Fig. 4 is the A-A cross-sectional view (medical titanium cable is omitted) of Fig. 1, and Fig. 5 is B-B cross-sectional view (medical titanium cable is omitted) in Fig. 1,
Fig. 6 is the I partial enlarged view in Fig. 1, and Fig. 7 is the II partial enlarged view in Fig. 1.
Fig. 8 is the usage state diagram of elasticity intervertebral disk prosthesis shown in Fig. 1~7.
Fig. 9 is the comparison diagram that intervertebral disk prosthesis shown in Fig. 1~7 is pressurized with tension state, wherein left figure is pressured state,
Right figure is tension state.
Specific embodiment
Example 1
Referring to Fig. 1~7, the elastic intervertebral disk prosthesis in this example includes the top plate that same axis 4 is set gradually from top to bottom
1, elastomer 3 and bottom plate 2.
Referring to Fig. 1 and Fig. 2, the upper surface of top plate 1 is the curved surface similar with human vertebrae planform to arch upward upwards, should
Several prominent 11 are distributed on curved surface, edge is symmetrically arranged with two lugs 12, is respectively equipped with sphere hole 12- on each lug 12
1；It with axis 4 is rotation center on the top plate 1, R is that symmetrical there are four the counterbores for running through plate body for radius of turn circumference
16；A ring-shaped groove 15 is equipped with around axis 4 on the lower surface of the top plate 1.
Referring to Fig. 1~3, bottom plate 2 in addition to the distributing position of four counterbores 16 is different, other structures feature with 1 mirror of top plate
As symmetrical.The distributing positions of four counterbores 16 of bottom plate 2 and 1 four 16 distributing positions of counterbore of top plate are staggered 45° angle around axis 4.
Referring to Fig. 1 and Fig. 4~5, the elastomer 3 includes a metal compression coil spring 3-1, the metal compression coil bullet
Vulcanization is enclosed with nonbiodegradable polyurethane 3-2 and forms cylindrical tube on spring 3-1, and opposite on the vulcanization wrapping layer of inside and outside wall
The helicla flute of V-shaped equipped with accumbency, the helicla flute be located at the two metal compression coil spring 3-1 adjacent wires it
Between, and helical angle is consistent with the helical angle of the metal compression coil spring 3-1；It is gone in the middle part of 3 both ends of the surface of elastomer vulcanisation
The polyurethane 3-2 of package is respectively formed a circular groove 5, and metal compression coil spring 3-1's exposed in the bottom surface of the circular groove 5
End face, and diameter greater than metal compression coil spring 3-1 internal diameter and be less than metal compression coil spring 3-1 outer diameter.
Referring to Fig. 1 and Fig. 4~5, matching upper of diameter is respectively equipped on circular groove 5 set by 3 both ends of elastomer
Pressing plate 7 and lower platen 8, the top board 7 and lower platen 8 are all medical metal plate, and are rotation center with axis 4 on plate body, and R is
Symmetrically staggeredly set there are four via hole 13 and four screw holes 14 on the circumference of radius of turn, wherein via hole 13 and adjacent screw hole 14 it
Between central angle be 45 °.The thickness of the top board 7 and lower platen 8 is less than the depth of the circular groove 5, and circular groove 5 surpasses
The outer edge 19 of (top board 7, lower platen 8) extends into the ring-shaped groove 15 out.
Referring to Fig. 1 and Fig. 6~7, two groups of medical titanium cables 6 are symmetrically distributed with linear state in the centre bore of elastomer 3, often
One group of titanium cable 6 is made of four medical titanium cables 6；The both ends of each medical titanium cable 6 are equipped with nipple 10, the nipple
10 are processed into using following methods: the titanium silk at 6 both ends of medical titanium cable being heated to the simultaneously jumping-up that is consolidated, is ground after cooling
At cylinder, nipple 10 is then processed.
Referring to Fig. 1~5, the outer edge 19 of 3 both ends circular groove 5 of elastomer is respectively embedded into top plate 1 and the corresponding ring of bottom plate 2
It is adhesively fixed in shape groove 15 and by sulfuration process；In elastomer 3, four via holes 13 on top board 7 are respectively and on top plate 1
The coaxial arrangement of four counterbores 16, four via holes 13 on lower platen 8 are coaxially disposed with four counterbores 16 on bottom plate 2 respectively；
In two groups of titanium cable groups, the following nipple 10 of one group of medical titanium cable 6 is fixed on the screw hole 14 of lower platen 8, and upper head thread connects
First 10 pass through and are fixed in the counterbore 16 of top plate 1 after corresponding via hole 13 on top board 7 by nut 9, another group of medical titanium cable 6
Top nipple 10 is fixed on the screw hole 14 of top board 7, and following nipple 10 passes through corresponding via hole 13 on lower platen 8
It is fixed in the counterbore 16 of bottom plate 2 by nut 9 afterwards.
Referring to Fig. 1~7, the overall structure and its assembly method of elasticity intervertebral disk prosthesis 18 described in this example are as described below:
(1) by four 6 one, medical titanium cable nipples 10 are spirally connected and solid welding is set on top board 7 screw hole 14
In, in the screw hole 14 that 6 one, four medical titanium cables remaining nipples 10 are spirally connected and solid welding is set on lower platen 8；
(2) top board 7 and lower platen 8 are respectively embedded into the circular groove 5 at 3 both ends of elastomer, and make to be fixed on pressure
Four medical titanium cables 6 on plate 7 pass through corresponding via hole 13 on lower platen 8 respectively, four medical titaniums being fixed on lower platen 8
Cable 6 passes through corresponding via hole 13 on top board 7 respectively, then in the one traction work of end face welding of each 6 other end of medical titanium cable
The wire of skill；
(3) by top plate 1 and the both ends staggered relatively in elastomer 3 of bottom plate 2, and the outer edge 19 of circular groove 5 is divided
Qian Ru not be in the ring-shaped groove 15 on top plate 1 and bottom plate 2, and two lugs 12 on top plate 1 are located at two lugs 12 on bottom plate 2
Then by counterbore 16 that the wire of each traction technique is pierced by respectively on top plate 1 and bottom plate 2 and medical titanium is straightened in the same side
Cable 6；
(4) top plate 1 and bottom plate 2 are put on a fixture together with elastomer 3 between the two and are forced into medical titanium cable 6
On nipple 10 stretch out top plate 1 and bottom plate 2, then remove the wire of the traction technique, and connect in each screw thread
A nut 9 is arranged on first 10；Then,
(5) gradually loosen the fixture, when on top plate 1 lower surface and the distance between bottom plate 2 be equal to the elasticity
When body 3 is compressed to the length of default initial stiffness, tightens nut 9 and point is welded, then use the method for heat cure by elastomer 3
The outer edge 19 at both ends is fixed together with ring-shaped groove 15 on top plate 1 and bottom plate 2 respectively.
Referring to Fig. 1 and Fig. 8, the method for implantation of intervertebral disk prosthesis 18 of the present invention is as described below: the elasticity that will be assembled
Intervertebral disk prosthesis 18 is placed between adjacent two vertebra 17, and two lugs 12 is made on top plate 1 to be located at ridge with two lugs 12 on bottom plate 2
Then intervertebral disk prosthesis 18 is fixed on adjacent vertebra through the sphere hole 12-1 on lug 12 with Medical screw by the front side of vertebra 17
On bone 17.
Referring to Fig. 9 and Fig. 1 and 8 is combined, the elastomer 3 under the quiet effect of patient's weight, in elastic intervertebral disk prosthesis 18
It is indeformable, once under the influence of certain factor (such as when pitching by bus), the human body on elastic 18 top of intervertebral disk prosthesis
When up and down motion, elastic intervertebral disk prosthesis 18 is just alternately tension or in compression.When elastic intervertebral disk prosthesis 18 is pressurized, pressure passes through
Top plate 1 and bottom plate 2 are transmitted on top board 7 and lower platen 8, and elastomer 3 generates flexible deformation by compression；When elastic interverbebral disc
When 18 tension of prosthese, which drives top plate 1 and bottom plate 2 to move backward, and generated displacement passes respectively through two groups of medical titanium cables 6
It is delivered on lower platen 8 and top board 7, top board 7 and lower platen 8 is forced to relatively move and the generation flexible deformation of compresses elastomeric 3.
Claims (5)
1. a kind of elasticity intervertebral disk prosthesis, which includes the top plate being sequentially coaxially arranged from top to bottom, elasticity
Body and bottom plate, which is characterized in that
The edge of the cover top surface and lower surface of base plate the same side is respectively symmetrically set there are two lug, on each lug point
It She You not sphere hole；
The elastomer includes metal compression coil spring, and vulcanization is enclosed with medical high polymer on the metal compression coil spring
Material forms cylindrical tube, and with respect to the helicla flute for the V-shaped for being equipped with accumbency on the vulcanization wrapping layer of inside and outside wall；The spiral
Slot position is between two adjacent wires of the metal compression coil spring, and helical angle and the metal compression coil spring
Helical angle is consistent；
The middle part of the elastomer both ends of the surface removes the vulcanization wrapping layer and is respectively formed a circular groove, the circular groove
The end face of the metal compression coil spring is exposed in bottom surface, and diameter is greater than the internal diameter of the metal compression coil spring, is less than
The outer diameter of the metal compression coil spring；Two groups of metals are symmetrically distributed in the centre bore of the elastomer with linear state to draw
Rope, each group of metal drag-line are at least three；Diameter phase therewith is respectively equipped in circular groove set by the elastomer both ends
Matched top board and lower platen, wherein the axis on the top board and lower platen around the elastomer is respectively symmetrically distributed with
The via hole equal with one group of metal drag-line quantity；Two groups of metal drag-lines, one group of following are fixed on lower platen, top
Corresponding via hole is fixed on the top plate on the top board, and another group of top is fixed on top board, and following is worn
Corresponding via hole on lower platen is crossed to be fixed on the bottom plate；
Two groups of metal drag-lines are tensioned, keep the distance between the top plate and bottom plate default initial equal to the elastomer to be compressed to
The length of rigidity.
2. a kind of elastic intervertebral disk prosthesis according to claim 1, which is characterized in that on the top plate and bottom plate respectively
Equipped with the quantity upper and lower perforative counterbore equal with one group of metal drag-line radical；Two groups of metal drag-lines, one group of top
It is equipped with nipple and is fixed by nuts on the top plate respectively in corresponding counterbore, another group of following is equipped with screw thread
Connector is simultaneously fixed by nuts on the bottom plate in corresponding counterbore respectively.
3. a kind of elastic intervertebral disk prosthesis according to claim 1 or 2, which is characterized in that the cover top surface and
Several are respectively equipped in lower surface of base plate to dash forward.
4. a kind of elastic intervertebral disk prosthesis according to claim 1 or 2, which is characterized in that the medical high polymer material
Material is polyurethane.
5. a kind of elastic intervertebral disk prosthesis according to claim 1 or 2, which is characterized in that the metal drag-line is doctor
With titanium cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810901575.9A CN108938151A (en) | 2018-08-09 | 2018-08-09 | A kind of elasticity intervertebral disk prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810901575.9A CN108938151A (en) | 2018-08-09 | 2018-08-09 | A kind of elasticity intervertebral disk prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108938151A true CN108938151A (en) | 2018-12-07 |
Family
ID=64468511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810901575.9A Pending CN108938151A (en) | 2018-08-09 | 2018-08-09 | A kind of elasticity intervertebral disk prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108938151A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030009223A1 (en) * | 2001-07-05 | 2003-01-09 | Gerald Fehling | Intervertebral disc prosthesis |
| US20030045940A1 (en) * | 2001-08-24 | 2003-03-06 | Robert Eberlein | Artificial intervertebral disc |
| CN1925816A (en) * | 2004-04-02 | 2007-03-07 | 斯恩蒂斯有限公司 | Intervertebral disk prosthesis or man-made vertebra |
| US20090076613A1 (en) * | 2007-07-26 | 2009-03-19 | Lutz Biedermann | Intervertebral disc prosthesis |
| US20120116513A1 (en) * | 2010-11-04 | 2012-05-10 | Carpenter Clyde T | Anatomic total disc replacement |
| CN105534623A (en) * | 2016-01-12 | 2016-05-04 | 四川大学华西医院 | Bionic artificial intervertebral disk |
| CN106382319A (en) * | 2016-10-17 | 2017-02-08 | 安徽信泽科技有限公司 | Disk spring damper with presettable early rigidity |
| CN106499762A (en) * | 2016-10-17 | 2017-03-15 | 安徽信泽科技有限公司 | A kind of coiled spring damper of predeterminable early stage rigidity |
| CN209316159U (en) * | 2018-08-09 | 2019-08-30 | 深圳市龙岗区人民医院 | A kind of elasticity intervertebral disk prosthesis |
-
2018
- 2018-08-09 CN CN201810901575.9A patent/CN108938151A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030009223A1 (en) * | 2001-07-05 | 2003-01-09 | Gerald Fehling | Intervertebral disc prosthesis |
| US20030045940A1 (en) * | 2001-08-24 | 2003-03-06 | Robert Eberlein | Artificial intervertebral disc |
| CN1925816A (en) * | 2004-04-02 | 2007-03-07 | 斯恩蒂斯有限公司 | Intervertebral disk prosthesis or man-made vertebra |
| US20090076613A1 (en) * | 2007-07-26 | 2009-03-19 | Lutz Biedermann | Intervertebral disc prosthesis |
| US20120116513A1 (en) * | 2010-11-04 | 2012-05-10 | Carpenter Clyde T | Anatomic total disc replacement |
| CN105534623A (en) * | 2016-01-12 | 2016-05-04 | 四川大学华西医院 | Bionic artificial intervertebral disk |
| CN106382319A (en) * | 2016-10-17 | 2017-02-08 | 安徽信泽科技有限公司 | Disk spring damper with presettable early rigidity |
| CN106499762A (en) * | 2016-10-17 | 2017-03-15 | 安徽信泽科技有限公司 | A kind of coiled spring damper of predeterminable early stage rigidity |
| CN209316159U (en) * | 2018-08-09 | 2019-08-30 | 深圳市龙岗区人民医院 | A kind of elasticity intervertebral disk prosthesis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070191838A1 (en) | Interspinous devices and methods of use | |
| US6527806B2 (en) | Intervertebral spacer device having a spiral wave washer force restoring element | |
| US20180353288A1 (en) | Accommodating intraocular lenses | |
| CN104224292B (en) | Dynamic bone fixation element and method of using the same | |
| US7806934B2 (en) | Radially compressed dehydrated spinal nucleus implants | |
| US20060149381A1 (en) | Prosthetic spinal discs | |
| US20030045939A1 (en) | Artificial intervertebral disc | |
| JP5909234B2 (en) | Flexible implant | |
| CN209316159U (en) | A kind of elasticity intervertebral disk prosthesis | |
| US20090222098A1 (en) | Spinal nucleus replacement with varying modulus | |
| WO2006133711A2 (en) | Medical device for insertion into a joint | |
| CN101394803A (en) | Vertebral rods and methods of use | |
| CN1774218A (en) | Intervertebral implant | |
| US20140296979A1 (en) | Implantable System With Elastic Components | |
| US20160175100A1 (en) | Tibial component | |
| US7291172B2 (en) | Artificial intervertebral disc | |
| CN209316158U (en) | A kind of bionical intervertebral disk prosthesis | |
| CN108938151A (en) | A kind of elasticity intervertebral disk prosthesis | |
| CN108938152A (en) | A kind of bionical intervertebral disk prosthesis | |
| CN2894635Y (en) | Coupled full intervertebral joint system | |
| CN110946682B (en) | Artificial cervical intervertebral disc prosthesis convenient for neck movement | |
| CN110934671B (en) | Artificial cervical intervertebral disc prosthesis | |
| CN201899586U (en) | Spinal implant structure | |
| CN111297661A (en) | Flexible limb rehabilitation mechanism | |
| CN110217313A (en) | The bionical body of stiffness variable of one species muscle fibre driving |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |