CN112451182B - XJ bionic artificial intervertebral joint - Google Patents
XJ bionic artificial intervertebral joint Download PDFInfo
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- CN112451182B CN112451182B CN202011367616.4A CN202011367616A CN112451182B CN 112451182 B CN112451182 B CN 112451182B CN 202011367616 A CN202011367616 A CN 202011367616A CN 112451182 B CN112451182 B CN 112451182B
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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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
-
- 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
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]
-
- 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
- A61F2002/444—Intervertebral or spinal discs, e.g. resilient for replacing the nucleus pulposus
-
- 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
- A61F2002/4495—Joints for the spine, e.g. vertebrae, spinal discs having a fabric structure, e.g. made from wires or fibres
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (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 XJ bionic artificial intervertebral joint, which comprises an upper vertebral body, a lower vertebral body and nucleus pulposus, wherein the upper vertebral body and the lower vertebral body are arranged in an up-down symmetrical manner; the top and the bottom of the upper vertebral body and the lower vertebral body are provided with an upper embedded part and a lower embedded part, and the top surfaces and the bottom surfaces of the upper embedded part and the lower embedded part are respectively provided with an inward-sunken arc-shaped concave position; the front side surface of the superior vertebral body is respectively provided with a pair of superior fixing holes and a pair of inferior fixing holes which penetrate through the back side surface of the superior vertebral body, and the superior fixing holes and the inferior fixing holes are arranged in a backward crossing way. The invention has simple structure, low cost and high flexibility, effectively prevents the dislocation of the prosthesis after operation, and realizes the omnibearing flexion and extension, lateral deviation and rotation motion of the intervertebral joint.
Description
Technical Field
The invention relates to the technical field of medical prostheses, in particular to an XJ bionic artificial intervertebral joint.
Background
In recent years, the incidence of cervical spondylosis in China is increasing year by year and tends to be younger. According to statistics, hundreds of millions of people suffer from cervical vertebra diseases in China. The cervical spine movement is composed of a plurality of spinal motion units. Each spinal telemechanical unit is composed of two vertebral bodies and an intervertebral disc therebetween. The most complex and special part of the spine is subjected to head load, multi-directional movements of flexion, extension and rotation, and the most prone to strain and strain. The cervical intervertebral disc mainly comprises an upper end plate, a nucleus pulposus and a lower end plate, is a main connection mode between vertebral bodies, has the physiological functions of buffering and damping, maintaining the sequence of the vertebral bodies and increasing the mobility of the cervical vertebra, and is characterized in that under the condition that the zygapophysis joint is intact, the function of a single intervertebral joint is jointly completed by an upper vertebral body, a lower vertebral body and the intervertebral disc between the upper vertebral body and the lower vertebral body. Due to natural aging, neck pressure and stress, cervical intervertebral discs are damaged or degenerate, the loss of disc height or herniation of nucleus pulposus can cause the pressure of cervical marrow or spinal nerve root, a series of clinical symptoms such as neck pain, numbness or severe pain of unilateral upper limbs or hands, weakness of upper limbs and the like are caused, and severe patients can cause paraplegia. Aiming at the treatment of cervical spondylosis, the artificial cervical intervertebral disc replacement is a new method for treating the cervical intervertebral disc diseases in recent years, the existing artificial cervical intervertebral disc prosthesis only replaces the pathological change or the degenerated cervical intervertebral disc singly, is limited to the replacement of the intervertebral disc and does not simulate the physiology and anatomy of a cervical intervertebral motion unit. The invention aims to provide a bionic artificial intervertebral motion unit to restore the physiological function of cervical vertebra.
Disclosure of Invention
The invention aims to provide an XJ bionic artificial intervertebral joint which is simple in structure and low in cost, greatly improves the post-operation stability and the fusion effect of vertebral bodies, and effectively solves the problems of cervical disc herniation, cervical spondylosis, cervical vertebra fracture and the like.
In order to realize the scheme, the embodiment of the invention provides an XJ bionic artificial intervertebral joint, which comprises an upper vertebral body, a lower vertebral body and a nucleus pulposus, wherein the upper vertebral body and the lower vertebral body are arranged in a vertically symmetrical manner, a groove matched with the shape of the nucleus pulposus is arranged on the opposite surface of the upper vertebral body and the lower vertebral body, the nucleus pulposus is embedded into the groove between the upper vertebral body and the lower vertebral body, and the nucleus pulposus is connected with the upper vertebral body and the lower vertebral body through nylon, terylene, expanded polytetrafluoroethylene tube or polyethylene fiber materials, so that the upper vertebral body and the lower vertebral body realize omnibearing rotary motion;
the top of the upper vertebral body is provided with an upper embedded part, the bottom of the lower vertebral body is provided with a lower embedded part, the top surface of the upper embedded part and the bottom surface of the lower embedded part are both provided with inward-sunken arc concave positions, and the vertical sections of the upper vertebral body and the lower vertebral body are frustum-shaped;
the front side of the superior vertebral body is provided with a pair of superior fixing holes penetrating through the back side surface of the superior vertebral body, the front side of the inferior vertebral body is provided with a pair of inferior fixing holes penetrating through the back side surface of the inferior vertebral body, and the superior fixing holes and the inferior fixing holes are arranged in a backward crossing manner.
Preferably, the superior injection hole penetrating through the groove is formed in the anterior side of the inferior part of the superior vertebral body, and the inferior injection hole penetrating to the groove is formed in the anterior side of the superior part of the inferior vertebral body.
Preferably, the nucleus pulposus comprises a core body, and the upper injection hole and the lower injection hole are respectively provided with an injection tube communicated with the core body, so that the core body can inject hydrogel into the core body through the injection tubes.
Preferably, the superior injection hole opening is provided with an superior pre-buried hole at the anterior side of the superior vertebral body, and the inferior injection hole opening is provided with a inferior pre-buried hole at the anterior side of the inferior vertebral body.
Preferably, the upper embedded hole and the lower embedded hole are provided with an upper plugging head and a lower plugging head, so that the upper plugging head and the lower plugging head plug the upper injection hole and the lower injection hole respectively.
Preferably, the surfaces of the superior and inferior vertebral bodies are trabecular cancellous bone.
Preferably, the upper fixing hole is in threaded connection with an upper screw, and the lower fixing hole is in threaded connection with a lower screw.
The embodiment of the invention has the following beneficial effects:
the superior vertebral body and the inferior vertebral body are respectively connected with the nucleus pulposus by adopting nylon, terylene, expanded Polytetrafluoroethylene (PTEE) tubes and polyethylene fibers, thereby improving the flexibility between the superior vertebral body and the inferior vertebral body and avoiding the dislocation of the nucleus pulposus.
Through excising osteophyte of human body vertebral body gap hyperplasia, an XJ bionic artificial intervertebral joint is implanted in the operation process, and hydrogel is injected into nucleus pulposus, so that an upper vertebral body and a lower vertebral body are respectively supported on a distal end plate of the excised vertebral body, and the omnibearing flexion, lateral deflection and rotation motions of the upper vertebral body and the lower vertebral body are realized.
And adopt 3D printing technique to make bionical artificial cervical intervertebral joint, effectively solve the problem such as the price is expensive, the size mismatching, the 3D false body elasticity, density and hole can imitate the trabecular bone structure simultaneously, optimize the false body structure.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is a rear elevational view of the overall construction of the present invention;
FIG. 4 is an overall exploded view of the present invention;
FIG. 5 is a half sectional view of the overall construction of the present invention;
FIG. 6 is a partial view of the overall structure of the present invention;
fig. 7 is a schematic view showing a structure of a portion a in fig. 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the XJ bionic artificial intervertebral joint comprises an upper vertebral body 1, a lower vertebral body 2 and a nucleus pulposus 3.
Referring to fig. 1 and 4, the superior vertebral body 1 and the inferior vertebral body 2 are symmetrically arranged up and down, the opposite surfaces between the superior vertebral body 1 and the inferior vertebral body 2 are provided with grooves 11 and 21 matched with the shape of the nucleus pulposus 3, the grooves are smooth surfaces, the nucleus pulposus 3 is embedded into the grooves 11 and 21 between the superior vertebral body 1 and the inferior vertebral body 2, so that the motion of the superior vertebral body 1 and the inferior vertebral body 2 is more flexible, and the nucleus pulposus 3 is connected with the superior vertebral body 1 and the inferior vertebral body 2 through nylon, terylene, expanded Polytetrafluoroethylene (PTEE) tubes or polyethylene fiber materials.
Referring to fig. 2, the vertical cross-sections of the superior vertebral body 1 and the inferior vertebral body 2 are in a frustum shape, and the superior vertebral body and the inferior vertebral body 2 are vertically arranged to form a rhombus shape, so that the stress between the superior vertebral body 1 and the inferior vertebral body 2 is more stable, and the superior vertebral body and the inferior vertebral body 2 are manufactured into an artificial vertebral body by adopting a titanium alloy material to perform a 3D printing technology, so that the superior vertebral body and the inferior vertebral body 1 and 2 have the advantages of high toughness, corrosion resistance, strong load and the like.
The top of superposition centrum 1 is provided with superposition scarf joint portion 4, the bottom of lower centrum 2 is provided with lower scarf joint portion 5, the top surface of superposition scarf joint portion 4 all is provided with the arc position of sinking with the bottom surface of lower scarf joint portion 5, the bottom diameter of superposition scarf joint portion 4 matches with the top diameter size of superposition centrum 1, the top diameter of superposition scarf joint portion 4 is greater than the top diameter of superposition centrum 1, the top diameter of lower scarf joint portion 5 matches with the bottom diameter size of lower centrum 2, the bottom diameter of lower scarf joint portion 5 is greater than the bottom diameter of lower centrum 2.
Referring to fig. 2 and 5, the superior vertebral body 1 has superior injection holes 12 penetrating through the groove 11 at the lower anterior side, the inferior vertebral body 2 has inferior injection holes 22 penetrating through the groove 21 at the upper anterior side, the nucleus pulposus 3 includes a core body 31, and injection pipes communicating with the core body 31 are respectively arranged in the superior injection holes 12 and the inferior injection holes 22.
Through carrying out wedge excision to human centrum, furthest excision is excised and is carried out human osteophyte, reserves the biggest bone volume as far as possible, then implants superior vertebra 1, inferior vertebra 2 in the human centrum, and superior scarf joint 4 of superior vertebra 1 and inferior vertebra 2's inferior scarf joint 5 support respectively on the distal end plate of excision centrum to remain joint mobility between the cervical vertebra.
Referring again to FIG. 7, the hydrogel is injected into the core 31 by a high pressure syringe, and the injection pressure is 50-70N during the injection process. The upper embedded hole 121 is arranged on the front side of the upper vertebral body 1 at the opening of the upper injection hole 12, the lower embedded hole 221 is arranged on the front side of the lower vertebral body 2 at the opening of the lower injection hole 22, the upper embedded hole 121 and the second embedded hole 221 are provided with an upper blocking head and a lower blocking head, the upper blocking head and the lower blocking head preferably adopt screws, and after the glue injection of the core body 31 is finished, the upper blocking head and the lower blocking head are respectively in threaded connection with the upper embedded hole 121 and the second embedded hole 221 to respectively block the upper injection hole 12 and the lower injection hole 22, so that hydrogel in the core body 31 is prevented from flowing out, the intervertebral units between the upper vertebral body 1 and the lower vertebral body 2 can realize omnibearing flexion, lateral deviation and rotation movement of the nucleus pulposus, and the flexibility and strength of the nucleus pulposus are improved.
The surfaces of the superior vertebral body 1 and the inferior vertebral body 2 are made of porous tantalum metal materials, so that porous bone trabeculae are formed on the surfaces of the superior vertebral body 1 and the inferior vertebral body 2, the pores on the surfaces of the porous tantalum metal materials are preferably 300-600 microns, after the superior vertebral body 1 and the inferior vertebral body 2 are respectively embedded with the superior end plate and the inferior end plate of a human body, the human body bone can grow into the pores on the surfaces of the porous bone trabeculae through the porous bone trabeculae on the surfaces of the superior vertebral body 1 and the inferior vertebral body 2, and the fusion effect between the superior vertebral body 1 and the inferior vertebral body 2 and the upper and lower human vertebral bodies after operation is better.
Referring to fig. 2, 3 and 6, a pair of superior fixing holes 13 penetrating through the back side surface of the superior vertebral body 1 is arranged at the front side of the superior vertebral body 1, a pair of inferior fixing holes 23 penetrating through the back side surface of the inferior vertebral body 2 is arranged at the front side of the inferior vertebral body 2, the superior fixing holes 13 and the inferior fixing holes 23 are arranged obliquely and backwards in a crossed manner, the superior fixing holes 13 of the superior vertebral body 1 are connected with superior screws, the inferior fixing holes 23 of the inferior vertebral body 2 are connected with inferior screws in a threaded manner, and the tail ends of the superior screws and the inferior screws respectively penetrate through the superior vertebral body 1 and the inferior vertebral body 2 to be fixedly connected with transverse processes at two sides of a human vertebral arch plate, so that dislocation of the superior vertebral body and the inferior vertebral body after operation in the moving process is greatly reduced, and the stability between the vertebral bodies after operation is improved.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All modifications made in accordance with the spirit of the main technical scheme of the invention are intended to be covered by the scope of the invention.
Claims (7)
1. An XJ bionic artificial intervertebral joint is characterized by comprising an upper vertebral body, a lower vertebral body and a nucleus pulposus, wherein the upper vertebral body and the lower vertebral body are symmetrically arranged up and down, grooves matched with the shape of the nucleus pulposus are formed in the opposite surfaces of the upper vertebral body and the lower vertebral body, the nucleus pulposus is embedded into the grooves between the upper vertebral body and the lower vertebral body, and the nucleus pulposus is connected with the upper vertebral body and the lower vertebral body through nylon, terylene, expanded polytetrafluoroethylene tubes or polyethylene fiber materials, so that the upper vertebral body and the lower vertebral body realize omnibearing rotary motion;
the top of the upper vertebral body is provided with an upper embedded part, the bottom of the lower vertebral body is provided with a lower embedded part, the top surface of the upper embedded part and the bottom surface of the lower embedded part are both provided with inward-concave arc concave positions, and the vertical sections of the upper vertebral body and the lower vertebral body are frustum-shaped;
the front side of the superior vertebral body is provided with a pair of superior fixing holes penetrating through the back side surface of the superior vertebral body, the front side of the inferior vertebral body is provided with a pair of inferior fixing holes penetrating through the back side surface of the inferior vertebral body, and the superior fixing holes and the inferior fixing holes are arranged in a backward crossing manner.
2. The XJ biomimetic artificial intervertebral joint according to claim 1, wherein the superior injection hole penetrating through the groove is provided on the inferior anterior side of the superior vertebral body, and the inferior injection hole penetrating through the groove is provided on the superior anterior side of the inferior vertebral body.
3. An XJ bionic artificial intervertebral joint as claimed in claim 2, wherein the nucleus pulposus comprises a core body, and the upper injection hole and the lower injection hole are respectively provided with an injection tube communicated with the core body, so that the core body can be injected with hydrogel through the injection tubes.
4. The XJ biomimetic artificial intervertebral joint according to claim 3, wherein the superior injection hole opening is provided with an superior pre-embedding hole at the anterior side of the superior vertebral body, and the inferior injection hole opening is provided with a inferior pre-embedding hole at the anterior side of the inferior vertebral body.
5. The XJ bionic artificial intervertebral joint as claimed in claim 4, wherein the first and second pre-buried holes are provided with an upper blocking head and a lower blocking head so as to block the upper injection hole and the lower injection hole respectively.
6. The XJ biomimetic artificial intervertebral joint according to any one of claims 1-5, wherein the surfaces of the superior vertebral body and the inferior vertebral body are trabecular bone.
7. The XJ biomimetic artificial intervertebral joint according to claim 1, wherein the upper fixing hole is in threaded connection with an upper screw, and the lower fixing hole is in threaded connection with a lower screw.
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CN202011367616.4A CN112451182B (en) | 2020-11-27 | 2020-11-27 | XJ bionic artificial intervertebral joint |
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CN202011367616.4A CN112451182B (en) | 2020-11-27 | 2020-11-27 | XJ bionic artificial intervertebral joint |
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CN112451182B true CN112451182B (en) | 2022-12-06 |
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Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2382028B (en) * | 2001-11-19 | 2006-11-01 | Aberdeen Orthopaedic Developme | Intervertebral disc prosthesis |
CA2468908C (en) * | 2001-12-05 | 2009-03-31 | Mathys Medizinaltechnik Ag | Intervertebral disk prosthesis or nucleus replacement prosthesis |
AU2003262694B2 (en) * | 2002-08-15 | 2008-10-23 | Synthes Gmbh | Intervertebral disc implant |
US7153325B2 (en) * | 2003-08-01 | 2006-12-26 | Ultra-Kinetics, Inc. | Prosthetic intervertebral disc and methods for using the same |
US8172904B2 (en) * | 2004-06-30 | 2012-05-08 | Synergy Disc Replacement, Inc. | Artificial spinal disc |
CN101422394A (en) * | 2007-10-30 | 2009-05-06 | 冠亚国际科技股份有限公司 | Vertebra filling block |
CN201719410U (en) * | 2010-06-23 | 2011-01-26 | 北京市春立正达科技开发有限公司 | Artificial disc |
CN105105889B (en) * | 2015-08-31 | 2017-11-10 | 深圳清华大学研究院 | A kind of artificial lumbar disc prostheses |
CN108836580A (en) * | 2018-07-06 | 2018-11-20 | 北京爱康宜诚医疗器材有限公司 | Artificial intervertebral disk frame body |
CN109620484A (en) * | 2018-12-19 | 2019-04-16 | 四川大学华西医院 | With the cervical vertebra joint replacement device of pyramidal portion excision |
CN111317597B (en) * | 2020-02-24 | 2022-03-18 | 汕头大学 | 3D printed bionic artificial cervical intervertebral joint |
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