CN201701285U - Single vertebral body reset fixing device - Google Patents
Single vertebral body reset fixing device Download PDFInfo
- Publication number
- CN201701285U CN201701285U CN2010202196998U CN201020219699U CN201701285U CN 201701285 U CN201701285 U CN 201701285U CN 2010202196998 U CN2010202196998 U CN 2010202196998U CN 201020219699 U CN201020219699 U CN 201020219699U CN 201701285 U CN201701285 U CN 201701285U
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- screw
- connecting rod
- nut
- vertebral body
- vertebral
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Abstract
The utility model discloses a single vertebral body reset fixing device, which comprises a screw, a connecting rod and a vertebral plate hook, wherein a positioning block is fixedly arranged at the middle upper part of the screw, one end of the connecting rod is provided with a screw sleeve, an included angle a between the axial line of the screw sleeve and the connecting rod is between 60 and 70 degrees, the screw sleeve is sheathed on the screw, a matched first screw nut is arranged above the screw so that the screw sleeve is positioned between the first screw nut and the positioning block, the other end of the connecting rod is provided with external screw threads, a matched second screw nut is arranged on the external screw threads, and the vertebral plate hook is sheathed and connected on the connecting rod, and is positioned between the screw sleeve and the second screw nut. The whole device of the utility model can regulate the size, and can be regulated according to physiological structures of human bodies for further maintaining the physiological protrusion of people to reach the better curing effect.
Description
Technical field
This utility model relates to a kind of internal fixation medical apparatus and instruments that lumbar vertebral arch isthmus splits that is used for, and is specifically related to a kind of single vertebral body reseting fixture.
Background technology
Lumbar isthmus is burst apart and slippage is common spine disorders, and Biomechanical factor has important function in the selection of its pathogenesis and Therapeutic Method, and its operation purpose is recovery lumbar vertebra anatomical structure, stablizes vertebra.At present, the burst apart Therapeutic Method of slippage of lumbar isthmus has the original position bone-graft fusion, and directly repair single vertebral body and fix, the pedicle outside, the fixing back bone-graft fusion that resets, merge etc. simultaneously on intervertebral fusion and front and back road, and said method respectively has its corresponding indication; Make a general survey of domestic and international in recent years pertinent literature, Most scholars is built consensus: slippage is not had the single vertebral body fixation of the suitable directly reparation of the tangible young patient of regression less than II degree, intervertebral disc, the tangible gerontal patient of intervertebral disc degeneration is then advocated capable multi-segmental converged fixed.
Wherein, fixture about single vertebral body fixation has obtained broad research, a kind of pedicle nail-vertebral lamina hook fixture is disclosed as Chinese utility model patent CN2390562Y, mainly form by pedicle nail, vertebral lamina hook, connecting rod and nut, connecting rod coarse-pitch thread end penetrates the pedicle nail uropore, the fine thread end penetrates the vertebral lamina hook aperture, and uses nut fastening respectively.During use, the pedicle nail pedicle is implanted vertebral body, and the vertebral lamina hook hook is in homonymy vertebral plate lower edge, and both are connected by connecting rod, and tighten into a fastening system with nut.Rotary nut also can play pressurization, impels union of fracture.
Yet, the pedicle nail of said structure-there are the following problems for the vertebral lamina hook fixture: because connecting rod coarse-pitch thread end is fixedlyed connected with pedicle nail, connecting rod fine thread end is fixedlyed connected with vertebral lamina hook, therefore, the size of whole device is fixed, can't adjust according to organization of human body, be difficult to keep people's physiology prolapse.
Summary of the invention
This utility model purpose provides a kind of single vertebral body reseting fixture, and lumbar isthmus is burst apart and the surgical operation therapy of slippage to be used for.
For achieving the above object, the technical solution adopted in the utility model is: a kind of single vertebral body reseting fixture, comprise screw, connecting rod and vertebral lamina hook, the middle and upper part of described screw is fixed with locating piece, one end of described connecting rod is provided with the screw cover, and the axis of screw cover and the angle a between the connecting rod are 60～70 degree, and described screw cover is socketed on the screw, the top of screw is provided with first nut of cooperation, and screw is overlapped between first nut and locating piece;
The other end of described connecting rod is provided with external screw thread, which is provided with second nut of cooperation; Described vertebral lamina hook is socketed on the connecting rod, and between the screw cover and second nut.
Above, the screw cover of described connecting rod one end can slide up and down on screw, thereby can adjust the height that it lifts by first nut on it; Described screw cover forms certain angle with respect to the connecting rod slight inclination, and this is in order to cooperate the human physiological structure, to keep people's physiology prolapse.Described vertebral lamina hook is socketed on the connecting rod, and between the screw cover and second nut, its structure is similar to the screw cover, to regulate the distance between vertebral lamina hook and the screw.
Further technical scheme also is provided with spring between the described vertebral lamina hook and second nut, and described spring housing is connected on the connecting rod.
In the technique scheme, the top of first nut on the described screw also is provided with the attaching nut.
In the technique scheme, the top of second nut on the described connecting rod also is provided with the attaching nut.This is to be connected with other equipment for convenience.
Operation principle of the present utility model: when screwing second nut, be fulcrum,, produce and go up Power of Spin backward that make intervertebral space broadening, vertebral body slippage forward reduces by leverage with vertebral lamina hook and vertebral plate contact point; When screwing first nut, utilize the effect of lifting of screw to make the vertebral body reach obtain to reset.
Because the technique scheme utilization, the advantage that this utility model compared with prior art has is:
1. the screw cover owing to single vertebral body reseting fixture of the present utility model can move up and down on screw, and the distance of vertebral lamina hook and screw can be regulated, thereby make whole device can regulate size, it can be adjusted according to the physiological structure of human body, and then keep people's physiology prolapse, reach better curative effect.
2. apparatus structure of the present utility model is simple, is easy to make, and has a good application prospect.
Description of drawings
Accompanying drawing 1 is the structural representation of this utility model embodiment one;
Accompanying drawing 2 is the structural representation of screw among this utility model embodiment one;
Accompanying drawing 3 is the structural representation of connecting rod among this utility model embodiment one;
Accompanying drawing 4 is the structural representation of vertebral lamina hook among this utility model embodiment one.
Wherein: 1, screw; 2, connecting rod; 3, vertebral lamina hook; 4, locating piece; 5, screw cover; 6, first nut; 7, second nut; 8, spring; 9, attaching nut.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment one:
Shown in accompanying drawing 1～4, a kind of single vertebral body reseting fixture, comprise screw 1, connecting rod 2 and vertebral lamina hook 3, the middle and upper part of described screw 1 is fixed with locating piece 4, one end of described connecting rod 2 is provided with screw cover 5, and the axis of screw cover and the angle a between the connecting rod are 65 degree, and described screw cover 5 is socketed on the screw 1, the top of screw is provided with first nut 6 of cooperation, makes screw cover 5 between first nut 6 and locating piece 4; The other end of described connecting rod 2 is provided with external screw thread, which is provided with second nut 7 of cooperation; Described vertebral lamina hook 3 is socketed on the connecting rod, and between screw cover 5 and second nut 7.
Also be provided with spring 8 between the described vertebral lamina hook 3 and second nut 7, described spring housing is connected on the connecting rod.The top of first nut on the described screw also is provided with attaching nut 9.The top of second nut on the described connecting rod also is provided with the attaching nut.
Above, the screw cover of described connecting rod one end can slide up and down on screw, thereby can adjust the height that it lifts by first nut on it; Described screw cover forms certain angle with respect to the connecting rod slight inclination, and this is in order to cooperate the human physiological structure, to keep people's physiology prolapse.Described vertebral lamina hook is socketed on the connecting rod, and between the screw cover and second nut, its structure is similar to the screw cover, to regulate the distance between vertebral lamina hook and the screw.
Claims (4)
1. single vertebral body reseting fixture, comprise screw (1), connecting rod (2) and vertebral lamina hook (3), it is characterized in that: the middle and upper part of described screw (1) is fixed with locating piece (4), one end of described connecting rod (2) is provided with screw cover (5), the axis of screw cover and the angle a between the connecting rod are 60～70 degree, described screw cover (5) is socketed on the screw (1), the top of screw is provided with first nut (6) of cooperation, and screw cover (5) is positioned between first nut (6) and the locating piece (4);
The other end of described connecting rod (2) is provided with external screw thread, which is provided with second nut (7) of cooperation; Described vertebral lamina hook (3) is socketed on the connecting rod, and is positioned between screw cover (5) and second nut (7).
2. single vertebral body reseting fixture according to claim 1 is characterized in that: also be provided with spring (8) between described vertebral lamina hook (3) and second nut (7), described spring housing is connected on the connecting rod.
3. single vertebral body reseting fixture according to claim 1 is characterized in that: the top of first nut on the described screw also is provided with attaching nut (9).
4. single vertebral body reseting fixture according to claim 1 is characterized in that: the top of second nut on the described connecting rod also is provided with the attaching nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202196998U CN201701285U (en) | 2010-06-09 | 2010-06-09 | Single vertebral body reset fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202196998U CN201701285U (en) | 2010-06-09 | 2010-06-09 | Single vertebral body reset fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201701285U true CN201701285U (en) | 2011-01-12 |
Family
ID=43438429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202196998U Expired - Fee Related CN201701285U (en) | 2010-06-09 | 2010-06-09 | Single vertebral body reset fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201701285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102715943A (en) * | 2012-07-06 | 2012-10-10 | 常州市康辉医疗器械有限公司 | Dynamic repairing device for lumbar vertebra isthmus |
| CN108635032A (en) * | 2018-05-23 | 2018-10-12 | 中国医学科学院北京协和医院 | A kind of internal automatically-controlled elastic struts spinal growth bar system |
-
2010
- 2010-06-09 CN CN2010202196998U patent/CN201701285U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102715943A (en) * | 2012-07-06 | 2012-10-10 | 常州市康辉医疗器械有限公司 | Dynamic repairing device for lumbar vertebra isthmus |
| CN108635032A (en) * | 2018-05-23 | 2018-10-12 | 中国医学科学院北京协和医院 | A kind of internal automatically-controlled elastic struts spinal growth bar system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20150609 |
|
| EXPY | Termination of patent right or utility model |