CN105055057A - Artificial vertebral lamina - Google Patents
Artificial vertebral lamina Download PDFInfo
- Publication number
- CN105055057A CN105055057A CN201510558068.6A CN201510558068A CN105055057A CN 105055057 A CN105055057 A CN 105055057A CN 201510558068 A CN201510558068 A CN 201510558068A CN 105055057 A CN105055057 A CN 105055057A
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- support portion
- structure body
- bone structure
- trabecular bone
- artificial neural
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Abstract
The invention provides an artificial vertebral lamina which comprises a support and a bone trabecula structural body. The support comprises a first supporting portion and a second supporting portion. The bone trabecula structural body is provided with multidirectional micropores allowing bone cells to grow therein. The first supporting portion is arranged at the first end of the bone trabecula structural body, and the second supporting portion is arranged at the second end of the bone trabecula structural body. Both the first supporting portion and the second supporting portion are detachably connected with the bone trabecula structural body. The artificial vertebral lamina solves the problem that greater damage is made to archecentra through artificial expansion of a vertebral canal in the prior art.
Description
Technical field
The present invention relates to artificial prosthesis technical field, in particular to a kind of artificial neural plate.
Background technology
The spinal canal stenosis of corpus vertebrae is a kind of common skeleton abnormal condition, therefore needs manually to expand canalis spinalis.Realize the expansion of canalis spinalis mainly through two kinds of means in prior art.
The first to open seam groove in bilateral vertebral body outer rim, retains a pleurocentrum inner panel as " door-hinge ", cuts off opposite side vertebral plate holostrome and form " enabling crack between a door and its frame ", then started to " door-hinge " by vertebral plate, complete single open-door action.Again vertebral plate supporting titanium plate is placed between the vertebral plate after enabling and lateral mass, on vertebral plate and lateral mass, inserts hold-down screw respectively, to maintain permanent " enabling ", thus realize the expansion of canalis spinalis.
Another kind is the first half of extracing vertebral body, namely with a part for spinous process, installs artificial spinous process part afterwards, replaces the first half of vertebral body, realizes the expansion of canalis spinalis.
But, the first step of above two kinds of methods appears corpus vertebrae, peel off by epicentral soft tissue, extensively must peel off paraspinal muscle, cut off muscle at each attachment point of cervical vertebra and all rears ligament structure, heavy damage vertebral body rear muscle ligament complex.Recovery postcentrum forms cicatrix with muscle and ligament and is connected, change power set structure, the motor pattern of vertebral body completely, cause cervical vertebra (or thoracic vertebra, lumbar vertebra) curvature loss, even kyphosis deformity, cervical vertebra motion amplitude is obviously limited, causes relevant ill symptoms and the complication such as Sagittal alignment.
Summary of the invention
Main purpose of the present invention is to provide a kind of artificial neural plate, damages larger problem to solve the artificial mode expanding canalis spinalis in prior art to archecenra.
To achieve these goals, the invention provides a kind of artificial neural plate, comprising: support, support comprises the first support portion and the second support portion; Trabecular bone structure body, trabecular bone structure body is provided with the multidirectional micropore of growing into for osteocyte, the first support portion is arranged on the first end of trabecular bone structure body, and the second support portion is arranged on the second end of trabecular bone structure body; Wherein, the first support portion is all removably connected with trabecular bone structure body with the second support portion.
Further, support also comprises the connecting portion of connection first support portion and the second support portion, and the first support portion is removably connected with trabecular bone structure body by connecting portion with the second support portion.
Further, connecting portion is provided with buckle, trabecular bone structure body is provided with the draw-in groove matched with buckle, connecting portion is arranged on trabecular bone structure body by buckle and being connected of draw-in groove.
Further, connecting portion is provided with positioning guide rail, trabecular bone structure body is provided with the locating slot matched with positioning guide rail, connecting portion is arranged on trabecular bone structure body by positioning guide rail and being connected of locating slot.
Further, connecting portion extends along the length direction of trabecular bone structure body, and the first support portion is arranged on the first end along bearing of trend of connecting portion, and the second support portion is arranged on second end along bearing of trend of connecting portion.
Further, the first support portion protrudes from first side along its length of trabecular bone structure body, and the second support portion protrudes from second side relative with the first side of trabecular bone structure body.
Further, be provided with bone grafting chamber in trabecular bone structure body, trabecular bone structure body is run through along the length direction of trabecular bone structure body in bone grafting chamber.
Further, trabecular bone structure body is provided with the opening being communicated with bone grafting chamber, connecting portion lid is located on opening, and connecting portion is provided with bone grafting hole, and bone grafting hole is communicated with bone grafting chamber by opening.
Further, the first support portion and the second support portion are arranged on connecting portion all bently.
Further, locating hole is provided with on the first support portion He on the second support portion.Artificial neural plate in the present invention comprises support and trabecular bone structure body, this trabecular bone structure body is provided with multidirectional micropore, like this, when the vertebral body of this trabecular bone structure body implant into body is upper, grow into along with osteocyte in human recovery process and capillary vessel are creeped along the micropore of trabecular bone structure body, trabecular bone structure body finally can form the Embedded structure of the activated fusion of tool, the autologous vertebral plate of this artificial neural plate and vertebral body is combined together, no longer forever rely on nail to fix, more firmly self-retaining at a specified future date can be realized.
In addition, the two ends of trabecular bone structure body are set respectively due to the first support portion in artificial neural plate and the second support portion and are removably connected with trabecular bone structure body, the vertebral body structure that more easily this artificial neural plate can be installed to human body is like this enclosed, the first support portion and the second support portion can also be changed more easily, improve the adaptability of this artificial neural plate, make this artificial neural plate be applied on different human bodies, realize fixing better and being connected.
Artificial neural plate in the present invention have structure simple, implant advantage easily, artificial neural plate and corpus vertebrae can be made better to merge, reduce the infringement to archecenra.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of an embodiment according to artificial neural plate of the present invention;
Fig. 2 shows the A-A sectional view of the artificial neural plate in Fig. 1;
Fig. 3 shows the structural representation of another embodiment according to artificial neural plate of the present invention;
Fig. 4 shows the B-B sectional view in Fig. 3;
Fig. 5 shows the structural representation of the support in Fig. 3; And
Fig. 6 shows the structural representation of the trabecular bone structure body in Fig. 3.
Wherein, above-mentioned accompanying drawing comprises the following drawings labelling:
10, support; 11, the first support portion; 12, the second support portion; 13, connecting portion; 14, buckle; 15, bone grafting hole; 16, positioning guide rail; 20, trabecular bone structure body; 21, bone grafting chamber; 22, locating slot.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Present embodiments provide a kind of artificial neural plate, please refer to Fig. 1 to Fig. 6, this artificial neural plate comprises: support 10, and support 10 comprises the first support portion 11 and the second support portion 12; Trabecular bone structure body 20, trabecular bone structure body 20 is provided with the multidirectional micropore of growing into for osteocyte, the first support portion 11 is arranged on the first end of trabecular bone structure body 20, and the second support portion 12 is arranged on the second end of trabecular bone structure body 20; Wherein, the first support portion 11 is all removably connected with trabecular bone structure body 20 with the second support portion 12.
Artificial neural plate in the present embodiment comprises support 10 and trabecular bone structure body 20, this trabecular bone structure body 20 has the matsurface of similar osteoporosis matter structure, the embedded combination in the face that combines between the higher and lower levels of this matsurface and the vertebral body embedded by artificial neural plate, provide incipient stability function to form the support to vertebral plate to the artificial neural plate after implanting, maintain the canal space expanded, and grow into along with osteocyte in human recovery process and capillary vessel are creeped along the micropore of trabecular bone structure body 20, trabecular bone structure body 20 finally can form the Embedded structure of the activated fusion of tool, the autologous vertebral plate of this artificial neural plate and vertebral body is combined together, no longer forever rely on nail to fix, more firmly self-retaining at a specified future date can be realized.
In addition, due to the first support portion 11 in artificial neural plate the two ends of trabecular bone structure body 20 be set respectively with the second support portion 12 and be removably connected with trabecular bone structure body 20, the vertebral body structure that more easily this artificial neural plate can be installed to human body is like this enclosed, the first support portion 11 and the second support portion 12 can also be changed more easily, improve the adaptability of this artificial neural plate, make this artificial neural plate be applied on different human bodies, realize fixing better and being connected.
Artificial neural plate in the present embodiment have structure simple, implant advantage easily, artificial neural plate and corpus vertebrae can be made better to merge, reduce the infringement to archecenra.
In the present embodiment, support 10 also comprises the connecting portion 13 of connection first support portion 11 and the second support portion 12, and the first support portion 11 is removably connected with trabecular bone structure body 20 by connecting portion 13 with the second support portion 12.
The present embodiment is by arranging connecting portion 13, and this connecting portion 13 is removably connected with trabecular bone structure body 20, more easily the first support portion 11 can be connected with the second support portion 12, and the first support portion 11 is connected with trabecular bone structure body 20 by this connecting portion 13 with the second support portion 12.
In the present embodiment, as depicted in figs. 1 and 2, connecting portion 13 is provided with buckle 14, trabecular bone structure body 20 is provided with the draw-in groove matched with buckle 14, connecting portion 13 is arranged on trabecular bone structure body 20 by buckle 14 and being connected of draw-in groove.In the present embodiment, buckle 14 is arranged on connecting portion 13 bently, like this, is placed on trabecular bone structure body 20 by connecting portion 13, and is folded in draw-in groove by buckle 14, and connecting portion 13 just can be made to be fixed on trabecular bone structure body 20.
In the present embodiment, as shown in Figures 3 to 6, connecting portion 13 is provided with positioning guide rail 16, trabecular bone structure body 20 is provided with the locating slot 22 matched with positioning guide rail 16, connecting portion 13 is arranged on trabecular bone structure body 20 by positioning guide rail 16 and being connected of locating slot 22.Like this, connecting portion 13 is inserted in the locating slot 22 of trabecular bone structure body 20 by positioning guide rail 16, just connecting portion 13 can be positioned on trabecular bone structure body 20.
In the present embodiment, connecting portion 13 extends along the length direction of trabecular bone structure body 20, and the first support portion 11 is arranged on the first end along bearing of trend of connecting portion 13, and the second support portion 12 is arranged on second end along bearing of trend of connecting portion 13.Like this, can more easily by the vertebral body structure of trabecular bone structure body 20 implant into body, and the first support portion 11 be connected more easily with the vertebral body structure of human body with the second support portion 12.
In the present embodiment, the first support portion 11 protrudes from first side along its length of trabecular bone structure body 20, and the second support portion 12 protrudes from second side relative with the first side of trabecular bone structure body 20.Like this, the first support portion 11 can be made to be connected with the vertebral body structure of human body more easily with the second support portion 12.Preferably, the projected direction of the first support portion 11 favours the length direction of trabecular bone structure body 20, and the projected direction of the second support portion 12 favours the length direction of trabecular bone structure body 20.
In the present embodiment, be provided with bone grafting chamber 21 in trabecular bone structure body 20, trabecular bone structure body 20 is run through along the length direction of trabecular bone structure body 20 in bone grafting chamber 21.The present embodiment, by arranging bone grafting chamber 21, can make the osteocyte of human body be filled in trabecular bone structure body 20, and then the autologous vertebral plate of artificial neural plate and vertebral body is combined together.
In the present embodiment, trabecular bone structure body 20 is provided with the opening being communicated with bone grafting chamber 21, connecting portion 13 lid is located on opening, and connecting portion 13 is provided with bone grafting hole 15, and bone grafting hole 15 is communicated with bone grafting chamber 21 by opening.The present embodiment can make osteocyte etc. enter in bone grafting chamber 21 through connecting portion 13 by arranging opening and bone grafting hole 15.
In the present embodiment, the first support portion 11 and the second support portion 12 are arranged on connecting portion 13 all bently.Like this, the first support portion 11 and the second support portion 12 can be made to fit with vertebral body better, be convenient to the installation of artificial neural plate.
In the present embodiment, locating hole is provided with on the first support portion 11 He on the second support portion 12.By arranging locating hole on the first support portion 11 and the second support portion 12, dog screw can be made to pass this locating hole, the first support portion 11 is connected with the vertebral body of human body with the second support portion 12.
In the present embodiment, the main part of this artificial neural plate adopts titanium alloy or absorbable material to make.Preferably, absorbable material comprises calcium-magnesium alloy.
In the present embodiment, the complete soak time of artificial neural plate in human body is no less than 12 months.
The application is in order to overcome the deficiency existing for artificial neural plate of the prior art, the filling providing this to can be used for human cervical spine spinal canal stenosis disease surgery supports the artificial neural plate of the assembly type merged, the bone trabecula part of the artificial neural plate of this assembly type has the 3D metal trabecular bone structure of similar human body spongy bone, can need to select the bone trabecula part of suitable dimension and angle to fill lamina gap according to the gap of vertebral plate during operation, and provide support power.
The matsurface of the similar cancellous bone structure had due to 3D metal trabecular bone structure and the embedded combination of upper and lower vertebral plate, provide incipient stability function to form the support to vertebral plate to the vertebral plate after implanting, in the rehabilitation course of patient, osteocyte and capillary vessel are creeped along the micropore of 3D metal trabecular bone structure and are grown into, and finally form the embedded artificial neural plate of the activated fusion of tool.
And this artificial neural plate adopts assembly type design, the holder part of this artificial neural plate adopts pure titanium material, bone trabecula part adopts titanium alloy, bone trabecula part after assembly can slide up and down on support, thus reach suitable Support Position, and holder part adopts pure titanium material, arbitrarily angled adjustment can be carried out in art.
Artificial neural plate in the application is realized by following technical scheme: this artificial neural plate is made up of support 10 and trabecular bone structure body 20, first support portion 11 of support 10 is connected with vertebral body side plate by screw, second support portion 12 is connected with vertebral body vertebral plate by screw, first support portion 11 and the second support portion 12 adopt with the faying face of vertebral body dissects shape-designing, add the stickiness of artificial neural plate, realize better fixing and being connected.
The connecting portion of artificial neural plate adopts entity structure, is formed better for the protection of canalis spinalis, and outside adopts trabecular bone structure design, better can realize bone and merge and follow-up Bone Ingrowth.
In the present embodiment, the size of connecting portion and bone trabecula part and angle can have the selection of plurality of specifications model, to adapt to different anatomic physiological data, screw hole (locating hole) on first support portion and the second support portion is for fixing assembly type artificial neural plate and vertebral body, the angle of the first support portion and the second support portion and radian adopt anatomical form design, can better and corpus vertebrae fit.
In this embodiment, the artificial neural plate of assembly type is connected by screw with physiology vertebral body, and the initial stage reaching vertebral plate stablizes.
The surface of the trabecular bone structure body of artificial neural plate is provided with the microcellular structure be convenient to osteocyte and grown into, this microcellular structure is a kind of multidirectional micro hole structure be interconnected, the scope of pore diameter is 300 μm to 1500 μm, preferably, pore diameter is 800 μm, this hole is conducive to osteocyte and creeps and grow into, and postoperative artificial neural plate faying face will with physiological bone structure generation Integrated implant to reach steady in a long-term.
The artificial neural plate of the assembly type in the present embodiment, has following beneficial effect:
Dimensionally can by adopting different specification, model, size to ensure meet the situation of various different patient, the fusion face of the artificial neural plate of assembly type with close on vertebral body physiology face good agreement; After the artificial neural plate implant into body of assembly type will and shape bone osteogenic fusion chimeric with surrounding physiological bone structure to reach steady in a long-term.
First support portion and the screw on the second support portion adopt screw to be connected with vertebral body, adopt again anatomic form design, can ensure good stability, can provide again good bone interface laminating.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, 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 amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an artificial neural plate, is characterized in that, comprising:
Support (10), described support (10) comprises the first support portion (11) and the second support portion (12);
Trabecular bone structure body (20), described trabecular bone structure body (20) is provided with the multidirectional micropore of growing into for osteocyte, described first support portion (11) is arranged on the first end of described trabecular bone structure body (20), and described second support portion (12) is arranged on the second end of described trabecular bone structure body (20);
Wherein, described first support portion (11) is all removably connected with described trabecular bone structure body (20) with described second support portion (12).
2. artificial neural plate according to claim 1, it is characterized in that, described support (10) also comprises the connecting portion (13) connecting described first support portion (11) and described second support portion (12), and described first support portion (11) is removably connected with described trabecular bone structure body (20) by described connecting portion (13) with described second support portion (12).
3. artificial neural plate according to claim 2, it is characterized in that, described connecting portion (13) is provided with buckle (14), described trabecular bone structure body (20) is provided with the draw-in groove matched with described buckle (14), described connecting portion (13) is arranged on described trabecular bone structure body (20) by described buckle (14) and being connected of described draw-in groove.
4. artificial neural plate according to claim 2, it is characterized in that, described connecting portion (13) is provided with positioning guide rail (16), described trabecular bone structure body (20) is provided with the locating slot (22) matched with described positioning guide rail (16), described connecting portion (13) is arranged on described trabecular bone structure body (20) by described positioning guide rail (16) and being connected of described locating slot (22).
5. artificial neural plate according to claim 2, it is characterized in that, described connecting portion (13) extends along the length direction of described trabecular bone structure body (20), described first support portion (11) is arranged on the first end along bearing of trend of described connecting portion (13), and described second support portion (12) is arranged on second end along bearing of trend of described connecting portion (13).
6. artificial neural plate according to claim 5, it is characterized in that, described first support portion (11) protrudes from first side along its length of described trabecular bone structure body (20), and described second support portion (12) protrudes from second side relative with described first side of described trabecular bone structure body (20).
7. artificial neural plate according to claim 2, it is characterized in that, be provided with bone grafting chamber (21) in described trabecular bone structure body (20), described bone grafting chamber (21) runs through described trabecular bone structure body (20) along the length direction of described trabecular bone structure body (20).
8. artificial neural plate according to claim 7, it is characterized in that, described trabecular bone structure body (20) is provided with the opening being communicated with described bone grafting chamber (21), described connecting portion (13) lid is established over said opening, and described connecting portion (13) is provided with bone grafting hole (15), described bone grafting hole (15) is communicated with described bone grafting chamber (21) by described opening.
9. artificial neural plate according to claim 2, is characterized in that, described first support portion (11) and described second support portion (12) are arranged on described connecting portion (13) all bently.
10. artificial neural plate according to claim 1, is characterized in that, described first support portion (11) above and on described second support portion (12) is provided with locating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558068.6A CN105055057A (en) | 2015-09-02 | 2015-09-02 | Artificial vertebral lamina |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558068.6A CN105055057A (en) | 2015-09-02 | 2015-09-02 | Artificial vertebral lamina |
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| CN105055057A true CN105055057A (en) | 2015-11-18 |
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| CN201510558068.6A Pending CN105055057A (en) | 2015-09-02 | 2015-09-02 | Artificial vertebral lamina |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105266877A (en) * | 2015-11-26 | 2016-01-27 | 广州聚生生物科技有限公司 | Spinal column vertebral plate open-door fixing system |
| CN107550555A (en) * | 2017-09-29 | 2018-01-09 | 赵斌 | A kind of minimally invasive Laminoplasty fixing device of double door |
| CN107693170A (en) * | 2017-09-30 | 2018-02-16 | 北京爱康宜诚医疗器材有限公司 | Vertebral plate prosthese |
| CN110353793A (en) * | 2019-07-26 | 2019-10-22 | 北京市春立正达医疗器械股份有限公司 | Posterior cervical follows closely board fixer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105266877A (en) * | 2015-11-26 | 2016-01-27 | 广州聚生生物科技有限公司 | Spinal column vertebral plate open-door fixing system |
| CN107550555A (en) * | 2017-09-29 | 2018-01-09 | 赵斌 | A kind of minimally invasive Laminoplasty fixing device of double door |
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| CN110353793A (en) * | 2019-07-26 | 2019-10-22 | 北京市春立正达医疗器械股份有限公司 | Posterior cervical follows closely board fixer |
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Application publication date: 20151118 |
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