CN103300949A - Artificial vertebral body - Google Patents
Artificial vertebral body Download PDFInfo
- Publication number
- CN103300949A CN103300949A CN2013102180131A CN201310218013A CN103300949A CN 103300949 A CN103300949 A CN 103300949A CN 2013102180131 A CN2013102180131 A CN 2013102180131A CN 201310218013 A CN201310218013 A CN 201310218013A CN 103300949 A CN103300949 A CN 103300949A
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- Prior art keywords
- vertebral body
- artificial
- vertebral
- main body
- positioning convex
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides an artificial vertebral body. According to the invention, the artificial vertebral body comprises a vertebral-body main body, a vertebral body upper supporting plate and a vertebral body lower supporting plate, wherein the vertebral body upper supporting plate is arranged at the upper end of the vertebral-body main body; the vertebral body lower supporting plate is arranged at the lower end of the vertebral-body main body; and the vertebral-body main body is provided with a plurality of buffer slots extending in the circumferential direction. According to the artificial vertebral body provided by the invention, as the buffer slots are formed in the vertebral-body main body, dynamic stability and mobility of the cervical vertebra are reserved, dynamic fixing is implemented, meanwhile, influence on complications of load increase, degeneration acceleration and the like of an adjacent segment is effectively improved, and an effective means is provided for rehabilitation treatment of the cervical vertebra.
Description
Technical field
The present invention relates to bone surgery implanting prosthetic field, especially, relate to a kind of artificial vertebral body.
Background technology
Since Hamdi reported first L2 plasmocytomas in 1969 and the capable vertebral tumor excision of adenocarcinoma metastatic, prosthese substitute, artificial vertebral body is used widely clinically as the effective vertebral body substitute of a class, its material is different, allograph bone, pottery, metal etc. are arranged, but the artificial vertebral body of every kind of material all there are pluses and minuses.As allograph bone have that the source is limited, immunological rejection etc., frangible and easily by fatigue rupture in the ceramic-like body, metal is implanted and is brought bone stress to shield and the bone resorption problem.In recent years, along with compound vertebral body substitution material has appearred in the development of tissue engineering, it can provide immediate postoperative stability can form the permanent bone fusion with vertebral body again.At this moment, the artificial vertebral body kind of design develops into the adjustable fixed pattern that can recover vertebral height also from initial simple support type.Yet no matter be that the change of the change of material or support modes is all for being that spinal column is merged, its maximum shortcoming is the activeness of thoroughly having removed the operative site cervical vertebra, in clinical practice and the test of a series of biomechanics, demonstrate, traditional artificial vertebral body remains in some aspects at some problems to be solveds, particularly the stability of postoperative axial-rotation aspect not, low etc. with the early stage bond strength of upper hypocentrum, its complication is easily to cause the implant displacement even deviate from, operative site spinal motion function limitation, the spinal column of neighbouring section is because a series of loads increases that compensatory ground over-activity brings, regression acceleration etc.
Summary of the invention
The object of the invention is to provide a kind of artificial vertebral body, to solve the stable inadequate technical problem of artificial vertebral body postoperative axial-rotation aspect.
For achieving the above object, the invention provides a kind of artificial vertebral body, comprise the vertebral body main body; The vertebral body mounting plate is arranged on the upper end of vertebral body main body; The vertebral body bottom plate is arranged on the lower end of vertebral body main body; Be provided with the dashpot that circumferentially extend on a plurality of edges on the vertebral body main body.
Further, the staggered side that connects the vertebral body main body of a plurality of dashpots.
Further, a plurality of dashpots are parallel to each other.
Further, the groove of a plurality of dashpots height is t, 1mm≤t≤2mm.
Further, artificial vertebral body also comprises and vertebral body mounting plate upper stiff end connected vertically, is provided with on the upper stiff end for the first fixing screw hole.
Further, artificial vertebral body also comprises and vertebral body bottom plate lower stiff end connected vertically, is provided with on the lower stiff end for the second fixing screw hole.
Further, be provided with upwardly extending upper positioning convex for fixing on the vertebral body mounting plate; Be provided with the fixing lower positioning convex that is used for to downward-extension on the vertebral body bottom plate.
Further, upper positioning convex and lower positioning convex are tapered protrusion.
Further, the height of upper positioning convex and lower positioning convex is p, 1mm≤p≤3mm.
Further, be provided with the first bio-ceramic coating on the vertebral body mounting plate; Be provided with the second bio-ceramic coating on the vertebral body bottom plate.
The present invention has following beneficial effect:
The artificial vertebral body of the present invention is by arranging a plurality of dashpots in the vertebral body main body, the dynamic stability and the activeness that have kept cervical vertebra, realized dynamically fixing, effectively improved simultaneously the impact on complication such as the increase of neighbouring section load, regression acceleration, for the rehabilitation of cervical vertebra provides a kind of effective means.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.The below is with reference to figure, and the present invention is further detailed explanation.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the axle side schematic diagram according to artificial vertebral body of the present invention;
Fig. 2 is the schematic diagram that hold-down screw is not installed according to artificial vertebral body of the present invention;
Fig. 3 is that the master according to artificial vertebral body of the present invention looks schematic diagram;
Fig. 4 is the schematic top plan view according to artificial vertebral body of the present invention; And
Fig. 5 is the schematic diagram according to the user mode of artificial vertebral body of the present invention.
Reference numeral in the accompanying drawing is as follows: 10, vertebral body main body; 11, dashpot; 20, vertebral body mounting plate; 21, upper positioning convex; 22, upper stiff end; 23, the first screw hole; 24, the first bio-ceramic coating; 30, vertebral body bottom plate; 31, lower positioning convex; 32, lower stiff end; 33, the second screw hole; 34, the second bio-ceramic coating; 40, hold-down screw; 50, vertebral body.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1 to Fig. 5, according to artificial vertebral body of the present invention, comprising: vertebral body main body 10; Vertebral body mounting plate 20 is arranged on the upper end of vertebral body main body 10; Vertebral body bottom plate 30 is arranged on the lower end of vertebral body main body 10; Be provided with a plurality of dashpots 11 on the vertebral body main body 10.
Referring to Fig. 1 to Fig. 3, a plurality of dashpot 11 staggered sides that connect vertebral body main body 10.A plurality of dashpot 11 is parallel to each other.The groove height of a plurality of dashpots 11 is t, 1mm≤t≤2mm.The number of dashpot 11 is 8 to 15.The artificial vertebral body of dynamic stability type according to the present invention is provided with on the artificial vertebral body main body by the dashpot 11 parallel with vertebral body mounting plate 20 and vertebral body bottom plate 30, the high t=1～2mm of groove, and staggered vertebral body one side that connects, the groove number is 8～15.Under the effect of neck load; vertebral body main body 10 with uniform dashpot 11 forms an elastic support structure; can do the support with favored policy motion by one way or another; to adapt to the needs of human cervical spine motion; when dashpot 11 is extruded closure; motion reaches capacity, and can prevent like this hyperkinesia of spinal column, carries out overload protection.
Referring to Fig. 1 to Fig. 3, artificial vertebral body also comprises and vertebral body mounting plate 20 upper stiff ends 22 connected vertically, is provided with on the upper stiff end 22 for the first fixing screw hole 23.With vertebral body bottom plate 30 lower stiff ends 32 connected vertically, be provided with on the lower stiff end 32 for the second fixing screw hole 33.Referring to vertebral body mounting plate 20 and the vertebral body bottom plate 30 of Fig. 2, at the edge upper stiff end 22, the lower stiff end 32 of vertically establishing arranged, be distributed with on the upper stiff end 22 and be distributed with 4 the second screw holes 33 on 4 the first screw holes 23, the lower stiff end 32.Hold-down screw 40 is used for artificial vertebral body and human cervical spine vertebral body are fixedly linked.
Referring to Fig. 1 to Fig. 4, be provided with upwardly extending for fixing upper positioning convex 21 on the vertebral body mounting plate 20; Be provided with the fixing lower positioning convex 31 that is used for to downward-extension on the vertebral body bottom plate 30.Upper positioning convex 21 and vertebral body bottom plate 30 are tapered protrusion.The height of upper positioning convex 21 and lower positioning convex 31 is p, 1mm≤p≤3mm.There is upper positioning convex 21, the lower positioning convex 31 of thorn-like on the surface of vertebral body mounting plate 20 and vertebral body bottom plate 30, rising height p=1～3mm, this projection will embed therewith among the upper hypocentrum that connects, and can prevent the vertebral body prosthese slippage all around of implanting, and play simultaneously and strengthen fixing effect.
Referring to Fig. 1 to Fig. 2, be provided with the first bio-ceramic coating 24 on the vertebral body mounting plate 20; Be provided with the second bio-ceramic coating 34 on the vertebral body bottom plate 30.Surface attachment at this vertebral body mounting plate 20 and vertebral body bottom plate 30 has the hydroxyl apatite bioceramic coating, this coating adopts the generally accepted hydroxyapatite sprayed technology of artificial joint to make, and this coating technology can fixedly play good effect for the initial stage of implant.
Referring to Fig. 4, the vertebral body main body 10 of artificial vertebral body and vertebral body mounting plate 20 and vertebral body bottom plate 30 shape of cross sections are the appearance profile similar to corpus vertebrae, and this contour shape can reach and the coincideing of corpus vertebrae maximum area, thereby increase the ability of carrying.
Referring to Fig. 5, the structural representation of the artificial vertebral body user mode of dynamic stability type according to the present invention, artificial vertebral body will replace any sections vertebral body 50 of the 3rd to the 7th sections of cut human cervical spine.
A kind of operation process of the artificial vertebral body of dynamic stability type of the present invention is:
At first, taking-up needs replaced impaired host's cervical vertebral body sections;
Secondly, select the suitably artificial vertebral body of the dynamic stability type of height, strut the sections of the impaired host vertebral body 50 that has been removed with the instrument appropriateness, the ready vertebral body prosthese of packing into, hypocentrum is fitted on rest and reorganize the in case of necessity outer ledge position of upper hypocentrum, the lower stiff end 32 that makes the upper stiff end 22 of vertebral body mounting plate 20 and vertebral body bottom plate 30 and human body;
Again, select the hold-down screw 40 of suitable diameter and length, by in the two adjacent host health vertebral bodys about the first screw hole 23, the second screw hole 33 screw-ins, two adjacent host health vertebral bodys will fixedly secure by hold-down screw 40 and artificial vertebral body this moment with hold-down screw 40.
Behind the implanted human body of the artificial vertebral body of dynamic stability type of the present invention, it is positioning convex 21, lower positioning convex 31 on the lip-deep thorn-like of supporting plate up and down, to embed among the upper hypocentrum that connects therewith, prevent the vertebral body prosthese slippage all around of implanting, play simultaneously and strengthen fixing effect.Simultaneously, the supporting plate surface attachment has hydroxyapatite the first bio-ceramic coating 24, the second bio-ceramic coating 34 will effectively bring into play the long upper ability of bone, can fixedly play good effect for the initial stage of implant.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
The artificial vertebral body of dynamic stability type of the present invention can be realized the interior fixing of the single vertebral resection operation in cervical vertebra front and back road, the dynamic stability and the activeness that have kept simultaneously cervical vertebra, realized dynamically fixing, effectively improved simultaneously the impact on complication such as the increase of neighbouring section load, regression acceleration, for the rehabilitation of cervical vertebra provides a kind of effective means.Adopted simultaneously screw to fix, spinous process is fixed, ripe hydroxyl apatite bioceramic coating technology is fixed, and therefore stablely has preferably effect aspect fixing in initial stage of implant prosthese and later stage.Worker vertebral body shape of cross section is the appearance profile similar to corpus vertebrae, can reach and the coincideing of corpus vertebrae maximum area, thereby increase the ability of carrying.The artificial vertebral body operation wound is little, and easy operating is convenient to promote, and application prospect is good.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an artificial vertebral body is characterized in that, comprising:
Vertebral body main body (10);
Vertebral body mounting plate (20) is arranged on the upper end of described vertebral body main body (10);
Vertebral body bottom plate (30) is arranged on the lower end of described vertebral body main body (10);
Be provided with the dashpot (11) that circumferentially extend on a plurality of edges on the described vertebral body main body (10).
2. artificial vertebral body according to claim 1 is characterized in that, the staggered side that connects described vertebral body main body (10) of a plurality of described dashpots (11).
3. artificial vertebral body according to claim 1 is characterized in that, a plurality of described dashpots (11) are parallel to each other.
4. artificial vertebral body according to claim 1 is characterized in that, the groove height of a plurality of described dashpots (11) is t, 1mm≤t≤2mm.
5. artificial vertebral body according to claim 1 is characterized in that, also comprises and described vertebral body mounting plate (20) upper stiff end connected vertically (22), is provided with on the fixed end (22) for fixing the first screw hole (23).
6. artificial vertebral body according to claim 1 is characterized in that, also comprises and described vertebral body bottom plate (30) lower stiff end connected vertically (32), is provided with on the described lower stiff end (32) for fixing the second screw hole (33).
7. artificial vertebral body according to claim 1 is characterized in that, is provided with upwardly extending for fixing upper positioning convex (21) on the described vertebral body mounting plate (20); Be provided with the fixing lower positioning convex (31) that is used for to downward-extension on the described vertebral body bottom plate (30).
8. artificial vertebral body according to claim 7 is characterized in that, described upper positioning convex (21) and described lower positioning convex (31) are tapered protrusion.
9. artificial vertebral body according to claim 7 is characterized in that, the height of described upper positioning convex (21) and described lower positioning convex (31) is p, 1mm≤p≤3mm.
10. artificial vertebral body according to claim 1 is characterized in that, is provided with the first bio-ceramic coating (24) on the described vertebral body mounting plate (20); Be provided with the second bio-ceramic coating (34) on the described vertebral body bottom plate (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102180131A CN103300949A (en) | 2013-06-03 | 2013-06-03 | Artificial vertebral body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102180131A CN103300949A (en) | 2013-06-03 | 2013-06-03 | Artificial vertebral body |
Publications (1)
| Publication Number | Publication Date |
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| CN103300949A true CN103300949A (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2013102180131A Pending CN103300949A (en) | 2013-06-03 | 2013-06-03 | Artificial vertebral body |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490494A (en) * | 2014-09-30 | 2015-04-08 | 四川大学华西医院 | Shock-absorbing ball pad for intervertebral disc prosthesis |
| CN104958125A (en) * | 2015-07-24 | 2015-10-07 | 天津市第四中心医院 | Artificial vertebral body of framework in non-fusion technology |
| CN106923941A (en) * | 2017-04-26 | 2017-07-07 | 中国人民解放军第二军医大学第二附属医院 | A kind of personalized plate body integration artificial vertebral body based on 3D printing |
| US9700425B1 (en) | 2011-03-20 | 2017-07-11 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| CN106943215A (en) * | 2017-04-25 | 2017-07-14 | 中国人民解放军第二军医大学第二附属医院 | A kind of adjustable assembly type artificial vertebral body |
| CN107095730A (en) * | 2017-04-25 | 2017-08-29 | 中国人民解放军第二军医大学第二附属医院 | A kind of assembly type artificial vertebral body |
| CN110368080A (en) * | 2019-08-22 | 2019-10-25 | 上海长征医院 | A kind of biological centrum prosthese |
| WO2020069204A1 (en) * | 2018-09-26 | 2020-04-02 | Revivo Medical, Llc | Flexible interbody spacer and methods for use |
| CN113081405A (en) * | 2021-04-08 | 2021-07-09 | 新疆大学 | Artificial vertebral body and manufacturing method thereof |
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| CN102166140A (en) * | 2011-04-20 | 2011-08-31 | 中国人民解放军第四军医大学 | High-simulation customized combined artificial vertebra |
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| CN203354708U (en) * | 2013-06-03 | 2013-12-25 | 北京爱康宜诚医疗器材股份有限公司 | Artificial vertebral body |
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| CN2234256Y (en) * | 1995-03-31 | 1996-09-04 | 中国人民解放军第一军医大学 | Movable artificial pyramid |
| US6733532B1 (en) * | 1998-12-11 | 2004-05-11 | Stryker Spine | Intervertebral disc prosthesis with improved mechanical behavior |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10485672B2 (en) | 2011-03-20 | 2019-11-26 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| US9700425B1 (en) | 2011-03-20 | 2017-07-11 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| US11389301B2 (en) | 2011-03-20 | 2022-07-19 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| CN104490494A (en) * | 2014-09-30 | 2015-04-08 | 四川大学华西医院 | Shock-absorbing ball pad for intervertebral disc prosthesis |
| CN104958125A (en) * | 2015-07-24 | 2015-10-07 | 天津市第四中心医院 | Artificial vertebral body of framework in non-fusion technology |
| CN104958125B (en) * | 2015-07-24 | 2016-09-28 | 天津市第四中心医院 | Frame-type non-fusion technology artificial vertebral body |
| CN106943215A (en) * | 2017-04-25 | 2017-07-14 | 中国人民解放军第二军医大学第二附属医院 | A kind of adjustable assembly type artificial vertebral body |
| CN107095730A (en) * | 2017-04-25 | 2017-08-29 | 中国人民解放军第二军医大学第二附属医院 | A kind of assembly type artificial vertebral body |
| CN106923941A (en) * | 2017-04-26 | 2017-07-07 | 中国人民解放军第二军医大学第二附属医院 | A kind of personalized plate body integration artificial vertebral body based on 3D printing |
| WO2020069204A1 (en) * | 2018-09-26 | 2020-04-02 | Revivo Medical, Llc | Flexible interbody spacer and methods for use |
| US11497614B2 (en) | 2018-09-26 | 2022-11-15 | Revivo Medical, Llc | Flexible interbody spacer and methods for use |
| CN110368080A (en) * | 2019-08-22 | 2019-10-25 | 上海长征医院 | A kind of biological centrum prosthese |
| CN113081405A (en) * | 2021-04-08 | 2021-07-09 | 新疆大学 | Artificial vertebral body and manufacturing method thereof |
| CN113081405B (en) * | 2021-04-08 | 2023-11-03 | 新疆大学 | Artificial vertebral body and manufacturing method thereof |
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Application publication date: 20130918 |