CN2537355Y - Back fixer in vertebra - Google Patents
Back fixer in vertebra Download PDFInfo
- Publication number
- CN2537355Y CN2537355Y CN 02206324 CN02206324U CN2537355Y CN 2537355 Y CN2537355 Y CN 2537355Y CN 02206324 CN02206324 CN 02206324 CN 02206324 U CN02206324 U CN 02206324U CN 2537355 Y CN2537355 Y CN 2537355Y
- Authority
- CN
- China
- Prior art keywords
- hole
- screw thread
- implant assembly
- vertebra
- connect mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000007943 implant Substances 0.000 claims description 53
- 238000002513 implantation Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 9
- 231100000915 pathological change Toxicity 0.000 claims description 9
- 230000036285 pathological change Effects 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 6
- 230000003902 lesion Effects 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
Images
Abstract
The utility model relates to a fixer in rear spine, comprising a connecting mechanism, a plurality of embedding components, a bearer component and an external locking component. The utility model adopts the technical proposal that: firstly, the embedding components are fixedly locked in the spine body; secondly, the connecting mechanism is sleeved on the top part of the embedding component; then the corresponding bearer component and external locking component are assembled in sequence; with the locking function between the external locking component and the embedding components, the wounded or the lesion spine body and the complete fixer form a whole for complete fixing.
Description
Technical field
This utility model relates to a kind of rear vertebra inner fixer, design optimization by mechanical analysis, make its assembly after doing suitable dimension reduction, still can have enough intensity and fatigue durability, and by modularized design, making it is being when being subjected to the vertebra vertebral body fixing holder of wound or pathological changes, can carry out the adjustment of span and angle, and the vertebra vertebral body is fixed on best situation, to improve the effect of correcting rehabilitation.
Background technology
Modern regular meeting is because of year in year out sitting posture or sleeping position is bad, the generation of the motion mode of mistake or other unexpected situation; and cause the vertebra vertebral body to come to harm or produce retrograde affection; for improving the influence that the vertebra vertebral deformation is caused patient's work and rest; must be via surgical operation; adjusted fixing with being subjected to the vertebra vertebral body of wound or generation pathological changes; cooperate follow-up rectification work of rehabilitation again, make whole piece or partial vertebra vertebral body structure, can recover normal condition.
Under the prerequisite of considering ergonomics and structural strength, can design suitable vertebra fixer, its implantation is subjected in the vertebra vertebral body of wound or generation pathological changes, and according to the situation of patient's vertebra, adjust suitable span and angle, whole holder and vertebra cone shape are integral, reach the effect that is completely fixed.
For avoiding holder that patient's activity is brought inconvenience, it is better little to heal in the overall dimensions design of holder, and the height that will protrude in vertebra vertebral body outside is reduced to minimum, but in size reduction, must guarantee that still each assembly of holder has enough intensity and fatigue durability, prevent from the patient to be caused two degree injuries because of assembly damages or ruptures.
Secondly need to consider the convenience of operation technique, because having the nerve of many complexity to concentrate, human body is distributed in the vertebra rear side, make the surgical operation difficulty at this position increase, so must effectively reduce the quantity of fixation kit, to simplify operating procedure, to shorten operation time, improve the safety of operation.
In addition,, and there is certain diversity because be subjected to wound or the pathological changes situation of vertebra vertebral body can be because of the patient or the differences at position, thus in the design of holder, must make span and angle can do the elasticity adjustment, fully to satisfy the user demand of various situations.
Technical scheme
Main purpose of the present utility model is to solve the above problems, and avoids the existence of the problems referred to above, and this utility model provides a kind of rear vertebra inner fixer, the height that protrudes in vertebra vertebral body outside effectively can be reduced.
Another purpose of the present utility model provides a kind of rear vertebra inner fixer, and the assembly of this holder is doing can have enough intensity and fatigue durability under the situation of design optimization via mechanical analysis.
Another purpose of the present utility model provides a kind of rear vertebra inner fixer, effectively reduces fixation kit quantity, and adopts and from bottom to top assemble in regular turn and fixed mode, makes operation technique more easy.
Another purpose of the present utility model provides a kind of rear vertebra inner fixer, and the span of this holder and angle can be done the elasticity adjustment according to situation.
For realizing above-mentioned purpose, this utility model with a connect mechanism, organize implant assembly more, pad connected components and outer lock set constitute a rear vertebra inner fixer, lock set outside the many groups of connect mechanism binding implant assemblies, pad connected components reach, and span and angle done suitable adjustment, utilize the locking effect of outer lock set and implant assembly at last, will be completely fixed by the vertebra vertebral body of wound or pathological changes.
Relevant detailed description of the present utility model and technology contents, existing conjunction with figs. is described as follows.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a section of structure of the present utility model.
Fig. 3 is an assembled perspective view of the present utility model.
Fig. 4 is the first embodiment sketch map of the present utility model.
Fig. 5 is another pattern connect mechanism sketch map of the present utility model.
Fig. 6 is another pattern connect mechanism profile of the present utility model.
Fig. 7 is the second embodiment sketch map of the present utility model.
Fig. 8 is another pattern implant assembly of the present utility model and outer lock set sketch map.
Fig. 9 is another pattern implant assembly of the present utility model and outer lock set profile.
Figure 10 is the 3rd an embodiment sketch map of the present utility model.
Figure number explanation in the accompanying drawing:
Implant assembly ... ..1 implants screw thread ... ..11
External lock screw thread ... ..12 bulge loop ... .13
Connect mechanism ... ..2 narrow hole ... 21
The recessed edge of dome shape ... .22
Pad connected components ... ..3 through hole ... .31
Outer lock set ... ..4 screw ... .41
Connection assembly ... ..51 first through hole ... ..511
The recessed edge of sphere ring-type ... 512 second through holes ... ..513
Fixing threaded hole ... ..514
Uiform section rod member ... .52 fixed screw ... ..53
Spheroform surface ... ..6 winding plane ... ..7
Vertebra vertebral body ... ..8
The specific embodiment
As shown in Figure 1, be structural representation of the present utility model, this rear vertebra inner fixer is made up of many groups implant assembly 1, pad connected components 3, outer lock set 4 and a connect mechanism 2.
This implant assembly 1, connect mechanism 2, pad connected components 3 and outer lock set 4 can be formed in one or processing and manufacturing forms.
This implant assembly 1 and connect mechanism 2 can carry out design optimization via mechanical analysis, to have enough intensity and fatigue durability.
As Fig. 2, shown in Figure 3, be section of structure of the present utility model and assembled perspective view, this implant assembly 1, it is a cylinder, the one end has the implantation screw thread 11 of a suitable length, be used for implant assembly 1 is locked in vertebra vertebral body 8 admittedly, the shape of this implantation screw thread 11 can be one can reduce the cone of locking resistance admittedly, the external lock screw thread 12 that has a suitable length with respect to the other end of this implantation screw thread 11, has a bulge loop 13 between two screw threads, these bulge loop 13 outer rims can have a plurality of tangent planes of the convenient rotation application of force, and its side in this external lock screw thread 12 is a spheroform surface 6.
This connect mechanism 2, it is a narrow shape plate, it has two planes that are parallel to each other, have a plurality of and the vertical suitable length narrow hole 21 in plane along this planar longitudinally, be used to be socketed in the external lock screw thread 12 of this implant assembly 1, and have the appropriate gap that can make this implant assembly 1 adjust angle with these external lock screw thread 12 edges.
This narrow hole 21 is positioned at planar two ora terminalis, and one of them has the recessed edge 22 of a plurality of dome shape at least, makes the implant assembly 1 that is arranged in this narrow hole 21, can be according to the orientation adjustment of vertebra vertebral body 8 to suitable position and angle.
When two ora terminalis of this narrow hole 21, when all having the recessed edge 22 of dome shape, the recessed edge 22 of this dome shape has mutual corresponding relation in two planar positions.
When two ora terminalis of this narrow hole 21, when only one of them had the recessed edge 22 of dome shape, the implant assembly 1 that it disposed had bigger angle adjustable scope.
This connect mechanism 2 can be bent into required arc according to the shape of vertebra vertebral body 8 when assembling.
This fills up connected components 3, its center has a suitably big or small through hole 31, be used to be socketed in the external lock screw thread 12 that wore this narrow hole 21, and has the appropriate gap that can make this implant assembly 1 adjust angle with these external lock screw thread 12 edges, end face in this connect mechanism 2 is a spheroform surface 6, is a winding plane 7 with respect to the other end of this spheroform surface 6.
The recessed edge 22 of the dome shape of this connect mechanism 2 has the identical sphere curvature of spheroform surface 6 with implant assembly 1 and pad connected components 3, makes the angle of this implant assembly 1 with respect to this connect mechanism 2, can adjust according to the orientation of vertebra vertebral body 8.
Should outer lock set 4, be a cylinder, its outer rim can have the convenient a plurality of tangent planes that rotate the application of force, and the center has a screw 41, is screwed together in the external lock screw thread 12 of this implant assembly 1, is a winding plane 7 in an end face of this pad connected components 3.
As shown in Figure 4, be the first embodiment sketch map of the present utility model, the implantation screw thread 11 of a plurality of implant assemblies 1 is locked in the vertebra vertebral body 8 admittedly, socket connect mechanism 2, pad connected components 3 reach outer lock set 4 in the external lock screw thread 12 of this implant assembly 1 in regular turn then, at last with outer lock set 4 lockings, so will organize implant assembly 1, pad connected components 3 and outer lock set 4 by connect mechanism 2 links and fixes more, can will be subjected to the vertebra vertebral body 8 of wound or pathological changes to form one, reach the effect that is completely fixed with whole holder.
As Fig. 5, shown in Figure 6, be another pattern connect mechanism sketch map and profile of the present utility model, this connect mechanism includes: a plurality of connection assemblies 51, a prismatic member spare 52 and a plurality of fixed screw 53.
This connection assembly 51, it is a microscler plate, it has two planes that are parallel to each other, this planar end has first through hole 511 perpendicular to this in-plane, be used to be socketed in the external lock screw thread 12 of this implant assembly 1, and has the appropriate gap that can make this implant assembly 1 adjust angle with these external lock screw thread 12 edges, this first through hole 511 is positioned at planar two ora terminalis and has the recessed edge 512 of a sphere ring-type respectively, with respect to the other end of this first through hole 511 have one with this parallel plane second through hole 513, have one corresponding to the wherein plane of these second through hole, 513 positions and protrude the position, this protrusion position has one and is through to the fixing threaded hole 514 of second through hole 513 by the surface.
The recessed edge 512 of this sphere ring-type has the identical sphere curvature of spheroform surface 6 with this implant assembly 1 and pad connected components 3, and this implant assembly 1 can be adjusted according to the orientation of vertebra vertebral body 8 with respect to the angle of this connection assembly 51.
This prismatic member spare 52 is the modularized design of replaceable different length, can select the uiform section rod member 52 of suitable length according to the span of vertebra vertebral body 8 for use.
This fixed screw 53 is used for this prismatic member spare 52 is fixed in second through hole 513 of this connection assembly 51, and it has the screw thread that the fixing threaded hole 514 with this connection assembly 51 is complementary.
As shown in Figure 7, be the second embodiment sketch map of the present utility model, the implantation screw thread 11 of a plurality of implant assemblies 1 is locked in the vertebra vertebral body 8 admittedly, socket connection assembly 51 in regular turn then, pad connected components 3 and outer lock set 4 are in the external lock screw thread 12 of this implant assembly 1, and uiform section rod member 52 is arranged in second through hole 513 of this connection assembly 51, at last with outer lock set 4 and fixed screw 53 lockings, so will organize implant assembly 1 by uiform section rod member 52 more, connection assembly 51, pad connected components 3 and outer lock set 4 link fixing, can will be subjected to the vertebra vertebral body 8 of wound or pathological changes to form one, reach the effect that is completely fixed with whole holder.
As Fig. 8, shown in Figure 9, be another pattern implant assembly of the present utility model and outer lock set sketch map and profile, this implant assembly 1, it is a cylinder, the one end has the implantation screw thread 11 of a suitable length, be used for implant assembly 1 is locked in vertebra vertebral body 8 admittedly, the shape of this implantation screw thread 11 can be one can reduce the cone of locking resistance admittedly, the external lock screw thread 12 that has a suitable length with respect to the other end of this implantation screw thread 11, has a bulge loop 13 between two screw threads, these bulge loop 13 outer rims can have a plurality of tangent planes of the convenient rotation application of force, and its side in this external lock screw thread 12 is a winding plane 7.
Should outer lock set 4, be a cylinder, its outer rim can have the convenient a plurality of tangent planes that rotate the application of force, and the center has a screw 41, is screwed together in the external lock screw thread 12 of this implant assembly 1, is a spheroform surface 6 in an end face of this connect mechanism 2.
As shown in figure 10, be the 3rd embodiment sketch map of the present utility model, the implantation screw thread 11 of a plurality of implant assemblies 1 is locked in the vertebra vertebral body 8 admittedly, overlap connection pad connected components 3, connect mechanism 2 and outer lock set 4 then in regular turn in the external lock screw thread 12 of this implant assembly 1, at last with outer lock set 4 lockings, so will organize implant assembly 1, pad connected components 3 and outer lock set 4 by connect mechanism 2 links and fixes more, can will be subjected to the vertebra vertebral body 8 of wound or pathological changes to form one, reach the effect that is completely fixed with whole holder.
Claims (11)
1. a rear vertebra inner fixer comprises a plurality of implant assemblies (1), a connect mechanism (2) and a plurality of outer lock set (4), it is characterized in that:
This implant assembly (1) is a cylinder, the one end has the implantation screw thread (11) of a suitable length, the external lock screw thread (12) that has a suitable length with respect to the other end of implanting screw thread (11), have a bulge loop (13) between two screw threads, this bulge loop (13) is a spheroform surface (6) in a side of external lock screw thread (12); This connect mechanism (2) is disposed at the external lock screw thread (12) of implant assembly (1); And these a plurality of outer lock sets (4), be disposed at connect mechanism (2) top, and should outer lock set (4) be a cylinder, its center has a screw (41), being screwed together in the external lock screw thread (12) of implant assembly (1), is a spherical plane in an end face of connect mechanism (2); A plurality of implant assemblies (1) are locked in the vertebra vertebral body (8) admittedly, assemble connect mechanism (2) and outer lock set (4) more in regular turn, at last by the locking effect of outer lock set (4) with implant assembly (1), can will be subjected to the vertebra vertebral body (8) of wound or pathological changes to form one, reach the effect that is completely fixed with whole holder.
2. rear according to claim 1 vertebra inner fixer, it is characterized in that: this connect mechanism (2) can be a narrow shape plate, it has two planes that are parallel to each other, have a plurality of and the vertical suitable length narrow hole in plane (21) along this planar longitudinally, be socketed in the external lock screw thread (12) of above-mentioned implant assembly (1), this narrow hole (21) is positioned at planar two ora terminalis, and one of them has the recessed edge of a plurality of dome shape (22) at least.
3. rear according to claim 2 vertebra inner fixer is characterized in that: this connect mechanism (2) can cooperate the vertebra shape to be bent into required arc.
4. rear according to claim 2 vertebra inner fixer is characterized in that: this narrow hole (21) has appropriate gap between its edge and this external lock screw thread (12) after being socketed on the external lock screw thread (12) of above-mentioned implant assembly (1).
5. rear according to claim 2 vertebra inner fixer is characterized in that: the recessed edge of dome shape (22) of this narrow hole (221) has identical sphere curvature with the spheroform surface (6) of implant assembly (1).
6. rear according to claim 1 vertebra inner fixer is characterized in that, connect mechanism (2) can include:
A plurality of connection assemblies (51), this connection assembly (51) is a microscler plate, it has two planes that are parallel to each other, this two planar end has first through hole (511) perpendicular to this in-plane, be socketed in the external lock screw thread (12) of above-mentioned implant assembly (1), this first through hole (511) is positioned at planar two ora terminalis and has the recessed edge of a sphere ring-type (512) respectively, have one with respect to the other end of first through hole (511) and be parallel to above-mentioned planar second through hole (513), have one corresponding to the wherein plane of this second through hole (513) position and protrude the position, this protrusion position has one and is through to the fixing threaded hole (514) of this second through hole (513) by the surface;
One prismatic member spare (52) is arranged in second through hole (513) of connection assembly (51); And
A plurality of fixed screws (53) are disposed at the fixing threaded hole (514) of connection assembly (51).
7. rear according to claim 6 vertebra inner fixer is characterized in that: this first through hole (511) has appropriate gap between its edge and this external lock screw thread (12) after being socketed on the external lock screw thread (12) of above-mentioned implant assembly (1).
8. rear according to claim 6 vertebra inner fixer is characterized in that: the recessed edge of sphere ring-type (512) of this first through hole (511) has identical sphere curvature with the spheroform surface (6) of implant assembly (1).
9. rear according to claim 6 vertebra inner fixer is characterized in that: uiform section rod member (52) is the modularized design of replaceable different length.
10. rear according to claim 1 vertebra inner fixer, it is characterized in that: this outer lock set (4) can utilize socket one pad connected components (3) to form this spherical plane, this fills up connected components (3), its center has a suitably big or small through hole (31), to be socketed on implant assembly (1), end face in connect mechanism (2) is a spheroform surface, and holding with respect to the outer lock set (4) of spheroform surface is a winding plane.
11. rear according to claim 1 vertebra inner fixer, it is characterized in that: the bulge loop (13) of this implant assembly (1) can utilize socket one pad connected components (3) to form this spherical plane, this its center of pad connected components (3) has a suitably big or small through hole (31), to be socketed on implant assembly (1), end face in connect mechanism (2) is a spheroform surface, and holding with respect to the bulge loop (13) of spheroform surface is a winding plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206324 CN2537355Y (en) | 2002-02-25 | 2002-02-25 | Back fixer in vertebra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206324 CN2537355Y (en) | 2002-02-25 | 2002-02-25 | Back fixer in vertebra |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537355Y true CN2537355Y (en) | 2003-02-26 |
Family
ID=33687701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02206324 Expired - Lifetime CN2537355Y (en) | 2002-02-25 | 2002-02-25 | Back fixer in vertebra |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2537355Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622558A (en) * | 2015-02-12 | 2015-05-20 | 贺新宁 | Intervertebral space distraction internal fixing device |
| CN105246421A (en) * | 2014-05-02 | 2016-01-13 | 瑞特医疗技术公司 | Circular fixator system and method |
-
2002
- 2002-02-25 CN CN 02206324 patent/CN2537355Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246421A (en) * | 2014-05-02 | 2016-01-13 | 瑞特医疗技术公司 | Circular fixator system and method |
| US9808288B2 (en) | 2014-05-02 | 2017-11-07 | Wright Medical Technology, Inc. | Circular fixator system and method |
| CN105246421B (en) * | 2014-05-02 | 2017-12-12 | 瑞特医疗技术公司 | Loop fasteners System and method for |
| US10660671B2 (en) | 2014-05-02 | 2020-05-26 | Wright Medical Technology, Inc. | Circular fixator system and method |
| US11389199B2 (en) | 2014-05-02 | 2022-07-19 | Wright Medical Technology, Inc. | Circular fixator system and method |
| CN104622558A (en) * | 2015-02-12 | 2015-05-20 | 贺新宁 | Intervertebral space distraction internal fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120225 Granted publication date: 20030226 |