CN100594846C - Atlantodental arthrosis gripping apparatus - Google Patents
Atlantodental arthrosis gripping apparatus Download PDFInfo
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- CN100594846C CN100594846C CN200810061858A CN200810061858A CN100594846C CN 100594846 C CN100594846 C CN 100594846C CN 200810061858 A CN200810061858 A CN 200810061858A CN 200810061858 A CN200810061858 A CN 200810061858A CN 100594846 C CN100594846 C CN 100594846C
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- dentata
- atlas
- atlantodental
- arthrosis
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Abstract
The invention discloses an atlanto-odontoid fixer, which comprises an atlas member for connecting two lateral masses of an atlas, an axis member for connecting two lateral masses of an axis, and a raised stage prepared at the middle of the atlas member, wherein a concave spherical cavity is formed at the lower end of the stage; connection plates extending to both sides are formed on the side edgesof the stage, and each connection plate is provided with at least one mounting screw; a raised pedestal is formed at the middle of the axis member; a raised ball is formed on the upper end of the pedestal and is rotatablely assembled in the spherical cavity; waist-shaped mounting holes are formed on fixed plates on both sides of the atlas member to better locate the positions of the mounting screws in the actual operation; and the hollow mounting screw structure with through sides facilitates the graft fusion of the screws, thus improving the firmness for actual application. The axis member can enhance the stability of a pivot component by using geometrical principle and graft fusion method. Reasonable design of the fixed screw holes improves the fixation strength and simplifies the operation, and the spherically assembled atlas member and the axis member have good direction changing effect.
Description
Technical field
The present invention relates to technical field of medical, particularly a kind of Atlantodental arthrosis gripping apparatus.
Background technology
Medically treating atlantoaxial dislocation and unstable decompression and the fusions of adopting at present more.Simple decompression can not be corrected completely to the extensive region dentata, even can increase the weight of the shakiness of articulatio atlantoepistrophica; And fusion is to stablize articulatio atlantoepistrophica by Atlantoaxial fusion, directly causes rotatablely moving of patient's postoperative (head and neck) articulatio atlantoepistrophica obviously limited, finally can make the cervical spinal instability and the regression of not merging.So decompression and fusion can not be eradicated Atlantoaxial dislocation and unstable problem, can't keep original function of articulatio atlantoepistrophica motion simultaneously, make the patient finally can't return to health status, promptly can't be treated completely.As the patent No. is that the Chinese utility model patent " pillow neck holder " (notification number is CNCN2587365Y) of ZL02288644.3 is exactly this type of design; It comprises an occipital fixation plates, is provided with several holes on the head end arc plate section of this occipital fixation plates, is provided with the occipital bone screw of tip in the hole; End in the straight plate section of tail end of described occipital fixation plates is provided with a hole, wears pedicle screw in this hole, is provided with the hold-down nut that is complementary on this pedicle screw; This holder adopts fixed form, has pinned occipital bone and cervical vertebra, has limited the activity in occipital bone and cervical vertebra joint.
Summary of the invention
Technical problem to be solved by this invention is the present situation at prior art, provide a kind of rational in infrastructure, motion flexibly, installation strength is high and the Atlantodental arthrosis gripping apparatus of long service life.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: Atlantodental arthrosis gripping apparatus, comprise the atlas spare that is connected in atlas two lateral mass, the dentata spare that is connected in dentata two lateral mass, and be shaped on the stage body of projection in the middle of the atlas spare; This stage body lower end is shaped on the ball cavity of indent; The stage body side is shaped on the connecting plate that extends to both sides, all is equipped with at least one mounting screw on each connecting plate; Be shaped on the base body of projection in the middle of the dentata spare, the base body upper end is shaped on the spheroid of projection; This spheroid is fitted in the ball cavity, and rotates.
The measure of taking also comprises:
Above-mentioned stage body upper end is shaped on the die cavity body of indent, and is positioned on the wall body of these die cavity body both sides and all is shaped at least two atlas side openings.
Be positioned at the atlas side opening that is shaped on each wall body of above-mentioned die cavity body both sides and be at least four; Also be shaped on wall between above-mentioned die cavity body and the ball cavity; Be shaped on the waist through hole that at least one can match with mounting screw on the above-mentioned connecting plate.
The waist through hole that above-mentioned connecting plate is shaped on is one, and correspondingly, above-mentioned waist through hole is all equipped mutually with a mounting screw.
Above-mentioned mounting screw is middle saturating empty pipe wall body, is shaped on the screw side opening of at least five break-through in inner chamber on the pipe wall body of this mounting screw.
The screw side opening that above-mentioned mounting screw is shaped on is at least ten; And the preparation of the head end of this mounting screw has cone.
Extension is shaped on dentata lateral mass fixing head to above-mentioned dentata spare to both sides according to base body, all is shaped at least one dentata fixing threaded hole on each dentata lateral mass fixing head.
Above-mentioned dentata lateral mass fixing head be on one side with the base body side trigone of one mutually; The dentata fixing threaded hole that is shaped on each vertebra lateral mass fixing head is one, and this fixing threaded hole is positioned at described trigone.
Above-mentioned base body inside is hollow cavity; And the end face of this base body is shaped at least one dentata metapore, and the side of base body all is shaped at least one dentata side opening.
The dentata metapore that above-mentioned base body end face is shaped on is at least five, and correspondingly, the dentata side opening that above-mentioned base body side is shaped on also all is at least five.
Compared with prior art, be shaped on the stage body of projection among the present invention in the middle of the atlas spare; This stage body lower end is shaped on the ball cavity of indent; The stage body side is shaped on the connecting plate that extends to both sides, all is equipped with at least one mounting screw on each connecting plate; Be shaped on the base body of projection in the middle of the dentata spare, the base body upper end is shaped on the spheroid of projection; This spheroid is fitted in the ball cavity, and rotates.The invention has the advantages that: waist shape installing hole is set on the fixing head of atlas spare both sides, the position that is beneficial to mounting screw in practical operation is better definite, hollow type and band are worn the mounting screw structure of side, are beneficial to the bone-graft fusion of this screw, have improved the fastness of practical application; Dentata spare utilizes wedge shape geometrical principle and bone-graft fusion method, has strengthened the stability of pivot parts; Reasonably fixing threaded hole design has increased constant intensity, has simplified operation technique simultaneously; Atlas spare and dentata spare utilized spherical principle in the Machine Design, improved both motilities when rotating, and turning efficiency is good, has guaranteed the reliability that rotatablely moves; The stability and the service life of adopting bone graft fusion and Embedded wedge shape geometrical principle to improve monoblock implement.
Description of drawings
Fig. 1 is that the front master of the embodiment of the invention looks sketch map;
Fig. 2 is the left-hand cross-sectional schematic of Fig. 1;
Fig. 3 is that overlooking of Fig. 1 partly cutd open sketch map;
Fig. 4 is the left-hand cross-sectional schematic of atlas spare among Fig. 1;
Fig. 5 is the left-hand cross-sectional schematic of dentata spare among Fig. 1;
Fig. 6 be among Fig. 1 mounting screw keep flat cross-sectional schematic.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
To embodiment shown in Figure 6, figure grade illustrates: atlas spare 1, stage body 11, ball cavity 11a as Fig. 1, die cavity body 11b, atlas side opening 11c, wall 11d, connecting plate 12, waist through hole 12a, dentata spare 2, base body 21, dentata metapore 21a, dentata side opening 21b, hollow cavity 21c, spheroid 22, dentata lateral mass fixing head 23, dentata fixing threaded hole 24, mounting screw 3, screw side opening 3a, cone 3b.
The embodiment of the invention, Atlantodental arthrosis gripping apparatus comprises the atlas spare 1 that is connected in atlas two lateral mass, the dentata spare 2 that is connected in dentata two lateral mass, is shaped on the stage body 11 of projection in the middle of the atlas spare 1; These stage body 11 lower ends are shaped on the ball cavity 11a of indent; Stage body 11 sides are shaped on the connecting plate 12 that extends to both sides, all are equipped with at least one mounting screw 3 on each connecting plate 12; Be shaped on the base body 21 of projection in the middle of the dentata spare 2, base body 21 upper ends are shaped on the spheroid 22 of projection; This spheroid 22 is fitted in the ball cavity 11a, and rotates.
Present embodiment is achieved in that stage body 11 upper ends are shaped on the die cavity body 11b of indent, and is positioned on the wall body of this die cavity body 11b both sides and all is shaped at least two atlas side opening 11c; Be positioned at the atlas side opening 11c that is shaped on each wall body of die cavity body 11b both sides and be at least four; Also be shaped on wall 11d between die cavity body 11b and the ball cavity 11a; Be shaped on the waist through hole 12a that at least one can match with mounting screw 3 on the connecting plate 12.
The waist through hole 12a that general connecting plate 12 is shaped on is one, and correspondingly, waist through hole 12a is all equipped mutually with a mounting screw 3.Mounting screw 3 is middle saturating empty pipe wall body, is shaped on the screw side opening 3a of at least five break-through in inner chamber on the pipe wall body of mounting screw 3.
The screw side opening 3a that general mounting screw 3 is shaped on is at least ten; And the preparation of the head end of this mounting screw 3 has cone 3b, and this cone 3b structure is beneficial to the bone grafting of whole erection screw 3 and allocates into.
Extension is shaped on dentata lateral mass fixing head 23 to dentata spare 2 to both sides according to base body 21, all is shaped at least one dentata fixing threaded hole 24 on each dentata lateral mass fixing head 23.
Dentata lateral mass fixing head 23 be on one side with the base body 21 sides trigone of one mutually; The dentata fixing threaded hole 24 that is shaped on each vertebra lateral mass fixing head 23 is one, and this fixing threaded hole 24 is positioned at described trigone.
Dentata spare 2 has adopted the bulb ball seat equipped with atlas spare 1, and both turning efficiencies are obvious, guarantees that the steady nothing of operation is interfered, thereby prolongs the life-span of this holder; Atlas spare 1 and dentata spare 2 are titanium alloy material and make, and have advantage wear-resistant, that the life-span is long.
Atlas spare 1 utilizes theory of mechanics to be rotated motion with dentata spare 2, and is rational in infrastructure, operates steadily; Connecting plate 12 adopts the butterfly Bionic Design, and practical function is remarkable; Mounting screw 3 structures of hollow type band side opening have effectively improved the constant intensity of atlas spare 1; Dentata lateral mass fixing head 23 is symmetrical arranged two dentata fixing threaded holes 24, has simplified operation technique; Its advantage is: the Bionic Design on morphology and the kinetics, improved the reliability and the practicality of utensil overall operation; Utilize theory of mechanics, guaranteed the flexibility ratio of patient's postoperative articulatio atlantoepistrophica motion; Reasonably fixing threaded hole design has increased constant intensity, has simplified operation technique simultaneously.
Most preferred embodiment of the present invention is illustrated, and various variations or the remodeling made by those of ordinary skills can not depart from the scope of the present invention.
Claims (9)
1, Atlantodental arthrosis gripping apparatus comprises the atlas spare (1) that is connected in atlas two lateral mass, the dentata spare (2) that is connected in dentata two lateral mass, it is characterized in that: the stage body (11) that is shaped on projection in the middle of the described atlas spare (1); Described stage body (11) lower end is shaped on the ball cavity (11a) of indent; Described stage body (11) side is shaped on the connecting plate (12) that extends to both sides, all is equipped with at least one mounting screw (3) on each described connecting plate (12); Be shaped on the base body (21) of projection in the middle of the described dentata spare (2), described base body (21) upper end is shaped on the spheroid (22) of projection; This spheroid (22) rotates and is fitted in the described ball cavity (11a); Described stage body (11) upper end is shaped on the die cavity body (11b) of indent, and is positioned on the wall body of these die cavity body (11b) both sides and all is shaped at least two atlas side openings (11c).
2, Atlantodental arthrosis gripping apparatus according to claim 1 is characterized in that: be positioned at the atlas side opening (11c) that is shaped on each wall body of described die cavity body (11b) both sides and be at least four; Also be shaped on wall (11d) between described die cavity body (11b) and the ball cavity (11a); Be shaped on the waist through hole (12a) that at least one can match with mounting screw (3) on the described connecting plate (12).
3, Atlantodental arthrosis gripping apparatus according to claim 2 is characterized in that: the waist through hole (12a) that described connecting plate (12) is shaped on is one, and correspondingly, described waist through hole (12a) is all equipped mutually with a mounting screw (3).
4, Atlantodental arthrosis gripping apparatus according to claim 3 is characterized in that: described mounting screw (3) is shaped on the screw side opening (3a) of at least five break-through in inner chamber for middle saturating empty pipe wall body on the pipe wall body of described mounting screw (3).
5, Atlantodental arthrosis gripping apparatus according to claim 4 is characterized in that: the screw side opening (3a) that described mounting screw (3) is shaped on is at least ten; And the preparation of the head end of this mounting screw (3) has cone (3b).
6, Atlantodental arthrosis gripping apparatus according to claim 5, it is characterized in that: extension is shaped on dentata lateral mass fixing head (23) to described dentata spare (2) to both sides according to base body (21), all is shaped at least one dentata fixing threaded hole (24) on each described dentata lateral mass fixing head (23).
7, Atlantodental arthrosis gripping apparatus according to claim 6 is characterized in that: described dentata lateral mass fixing head (23) on one side with described base body (21) the side trigone of one mutually; The dentata fixing threaded hole (24) that is shaped on each described vertebra lateral mass fixing head (23) is one, and this fixing threaded hole (24) is positioned at described trigone.
8, Atlantodental arthrosis gripping apparatus according to claim 7 is characterized in that: described base body (21) is inner to be hollow cavity (21c); And the end face of this base body (21) is shaped at least one dentata metapore (21a), and the side of base body (21) all is shaped at least one dentata side opening (21b).
9, Atlantodental arthrosis gripping apparatus according to claim 8, it is characterized in that: the dentata metapore (21a) that described base body (21) end face is shaped on is at least five, correspondingly, the dentata side opening (21b) that is shaped on of described base body (21) side also all is at least five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810061858A CN100594846C (en) | 2008-05-28 | 2008-05-28 | Atlantodental arthrosis gripping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810061858A CN100594846C (en) | 2008-05-28 | 2008-05-28 | Atlantodental arthrosis gripping apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101283923A CN101283923A (en) | 2008-10-15 |
| CN100594846C true CN100594846C (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810061858A Expired - Fee Related CN100594846C (en) | 2008-05-28 | 2008-05-28 | Atlantodental arthrosis gripping apparatus |
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| CN (1) | CN100594846C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105581829B (en) * | 2014-10-24 | 2018-01-05 | 中国科学院宁波材料技术与工程研究所 | A kind of spacing anticreep Atlanto-odontoid joint connector and its installation method |
| CN105326548B (en) * | 2015-10-28 | 2017-08-25 | 郑明辉 | Anterior approach lifts fixing device |
| CN107865686A (en) * | 2016-09-26 | 2018-04-03 | 青岛大学附属医院 | A kind of dichotomous atlas and axis hook fixed system of intelligence |
-
2008
- 2008-05-28 CN CN200810061858A patent/CN100594846C/en not_active Expired - Fee Related
Non-Patent Citations (6)
| Title |
|---|
| 人工寰枢关节的研制及应用解剖研究. 陈坚.中国临床解剖学杂志，第17卷第2期. 1999 |
| 人工寰枢关节的研制及应用解剖研究. 陈坚.中国临床解剖学杂志，第17卷第2期. 1999 * |
| 寰齿关节定量解剖研究及人工寰齿关节的研制. 胡勇.中华创伤杂志，第22卷第11期. 2006 |
| 寰齿关节定量解剖研究及人工寰齿关节的研制. 胡勇.中华创伤杂志，第22卷第11期. 2006 * |
| 经口咽入路人工寰齿关节置换术的解剖学研究. 胡勇.中华骨科杂志，第26卷第11期. 2006 |
| 经口咽入路人工寰齿关节置换术的解剖学研究. 胡勇.中华骨科杂志，第26卷第11期. 2006 * |
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| CN101283923A (en) | 2008-10-15 |
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