CN205163218U - Chest lumbar vertebrae compressibility fracture percutaneous wicresoft struts resetting means - Google Patents
Chest lumbar vertebrae compressibility fracture percutaneous wicresoft struts resetting means Download PDFInfo
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- CN205163218U CN205163218U CN201521039852.8U CN201521039852U CN205163218U CN 205163218 U CN205163218 U CN 205163218U CN 201521039852 U CN201521039852 U CN 201521039852U CN 205163218 U CN205163218 U CN 205163218U
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Abstract
The utility model provides a chest lumbar vertebrae compressibility fracture percutaneous wicresoft struts resetting means, include long arm pedicle of vertebral arch screw, longitudinal tie ware, an extension section of thick bamboo and strut the ware, the arm of long arm pedicle of vertebral arch screw is equipped with the arm external screw thread, an extension section of thick bamboo be cylindric, the hypomere of an extension section of thick bamboo be equipped with and arm matching the external screw's internal thread, long arm pedicle of vertebral arch screw passes through corresponding arm external screw thread and interior screw thread fit connection with an extension section of thick bamboo, the both ends of longitudinal tie ware are passed through the nut and are connected in two root length arm pedicle of vertebral arch screw lower extremes of homonymy, strutting the ware and including that first ware and the second of strutting struts the ware, first ware and the second of strutting struts the ware and sets up between two extension section of thick bamboos from top to bottom with staggering for adjust distance and angle between the extension section of thick bamboo. The utility model discloses can carry out effectively strutting chest lumbar vertebrae compressibility fracture percutaneous wicresoft, pass through C arm X -ray machine and observe strutting the in -process, progressively strut, effectively prevent to prop and strutted not enough, the operation controllability is strong.
Description
Technical field
This utility model relates to medical instruments field, particularly relates to a kind of compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device.
Background technology
For Treatment of vertebral body compression fracture, open operation treatment wound is in the past large, and complication is many.And minimal invasion distraction reduction is a spinal surgery development in recent years novel micro-wound surgical operation rapidly, clinical practice has confirmed its therapeutic effect, and few intercurrent disease.
By to existing technical research, existing minimal invasion struts system and can not effectively strut, main by preoperative Postural reduction, struts less effective.Therefore existing technology can not meet clinical needs completely.
Utility model content
Technical problem to be solved in the utility model, proposes a kind of compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device exactly, can carry out and effectively strut, strut in process by C arm X-ray machine observe, progressively strut, effectively prevented support and strut deficiency.
For solving the problems of the technologies described above, this utility model is achieved by the following technical solutions:
A kind of compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device, comprise long-armed pedicle of vertebral arch screw, longitudinal adapter, extending and dilator, the arm of described long-armed pedicle of vertebral arch screw is provided with arm external screw thread, described extending is cylindric, the hypomere of extending is provided with the female thread coordinated with described arm external screw thread, and long-armed pedicle of vertebral arch screw is connected by corresponding arm external screw thread and screw-internal thread fit to extending; The two ends of described longitudinal adapter are connected to two long-armed pedicle of vertebral arch screw lower ends of homonymy by nut; Described dilator comprises the first dilator and the second dilator, and the first dilator and the second dilator are arranged between two extendings with staggering up and down, for regulating distance between extending and angle, thus regulates the situation that pyramidal support resets.
As preferably, described dilator comprises expansion link and is articulated with two holders at described expansion link two ends, and described holder is individually fixed on described extending, by the distance between the telescopic adjustment extending of expansion link and angle.
As preferably, described holder comprises cuff and lock screw, and described cuff is sheathed on extending, is locked by lock screw.
As preferably, described expansion link comprises screw rod and is located at the swivel nut cylinder at screw rod two ends, and screw rod is provided with external screw thread, and swivel nut cylinder is provided with the female thread coordinated with described external screw thread, be fixed with rotary handle in the middle part of described screw rod, and external screw thread direction screw rod laying respectively at rotary handle both sides is contrary.
As preferably, described expansion link comprises two litter be parallel to each other and the control handle being connected two litter, has intersection between two litter, regulates the mutual displacement between two litter to realize elongation and the shortening of expansion link by control handle.
As preferably, in described extending, the cavity space of hypomere is large compared with the cavity space of epimere, and extending has observation port, screws in the degree of depth of extending for observing pedicle screw arm.
Compared with prior art, the beneficial effect that this utility model has is: this utility model can to compressed fracture of thoracic vertebra and lumber vertebra minimal invasion carry out effectively strut, strut in process by C arm X-ray machine observe, progressively strut, effectively prevented support and strutted deficiency, operation controllability is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model preferred embodiment;
Fig. 2 is the structural representation of the dilator of this utility model preferred embodiment;
Fig. 3 is the perspective view of the extending of this utility model preferred embodiment;
Fig. 4 is the cross-sectional view of the extending of this utility model preferred embodiment;
Fig. 5 is the cross-sectional view of the long-armed pedicle of vertebral arch screw of this utility model preferred embodiment.
Detailed description of the invention
For the understanding this utility model making those skilled in the art more clear and intuitive, below in conjunction with accompanying drawing, this utility model is further described.
If Fig. 1-5 is preferred embodiment of the present utility model.
A kind of compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device, comprise long-armed pedicle of vertebral arch screw 1, longitudinal adapter 2, extending 3 and dilator 4, the arm of long-armed pedicle of vertebral arch screw 1 is provided with arm external screw thread 11, extending 3 is cylindric, the hypomere of extending 3 is provided with the cylinder female thread 31 coordinated with arm external screw thread 11, long-armed pedicle of vertebral arch screw 1 is connected by corresponding arm external screw thread and cylinder female thread 31 to extending 3, longitudinal adapter 2 is located between different long-armed pedicle of vertebral arch screws 1, for connecting the different long-armed pedicle of vertebral arch screw 1 of homonymy, dilator 4 comprises the first dilator 41 and the second dilator 42, first dilator 41 and the second dilator about 42 are arranged between two extendings 3 with staggering, for regulating the Distance geometry angle between extending 3, thus regulate the situation that pyramidal support resets.
The expansion link 44 that dilator 4 comprises two holders 43 and is located between two holders 43, holder 43 is individually fixed on extending 3, by the distance between the telescopic adjustment extending of expansion link 44.In the present embodiment, expansion link 44 comprises screw rod 441 and is located at the swivel nut cylinder 442 at screw rod 441 two ends, screw rod 441 is provided with external screw thread, swivel nut cylinder 442 is provided with the female thread coordinated with external screw thread, swivel nut cylinder 442 is hinged with holder 43, be provided with rotary handle 5 in the middle part of screw rod 441, and external screw thread direction screw rod 441 being positioned at rotary handle 5 both sides is contrary.And holder 43 comprises cuff 431 and lock screw 432, cuff 431 is sheathed on extending 3, is locked by lock screw 432.In extending 3, the cavity space of hypomere is large compared with the cavity space of epimere, and extending 3 has observation port 6, enters the degree of depth in extending 3 for observing long-armed pedicle of vertebral arch screw 1.
The operational approach of the present embodiment is as follows: under C arm X-ray machine monitors, insert 4 pieces of long-armed pedicle of vertebral arch screws of percutaneous in the pedicle of vertebral arch of the upper hypocentrum of compression fracture vertebral body, according to the radian of spinal column, the bending of longitudinal adapter 2 is made it consistent with the radian of spinal column, the longitudinal adapter 2 in side is first installed, as the side of stiff end and long-armed pedicle of vertebral arch screw 1 locked through nut, temporarily not locked as the side and long-armed pedicle of vertebral arch screw 1 that strut end, the end that struts of longitudinal adapter 2 is mobilizable state in the arm of long-armed pedicle of vertebral arch screw 1; The upper arm of extending 3 with long-armed pedicle of vertebral arch screw 1 is connected, and the holder 43 of dilator 4 is fixed on extending 3, by the contraction of expansion link 44 and extending, compressed vertebral is strutted, first dilator 41 is mainly used in extending and regulates, second dilator 42 is for shortening adjustment, pedicle screw 1 is made to strut in " eight " shape gradually by original "/" shape by lever force, thus compression fracture vertebral body and anterior longitudinal ligament, posterior longitudinal ligament are stretched, by compressed vertebral being resetted under the extruding force of up-down stretch power and anterior longitudinal ligament, posterior longitudinal ligament.After coordinating C arm X-ray machine to observe, as the reduction of the fracture is satisfied, there is no support, now can by longitudinal adapter 2 to strut end also locked through nut, and take out dilator 4 and extending 3, then strut opposite side pedicle nail by same method.Last sew up wound, as Vertebral Compression is serious, Spinal canal encroachment is obvious, can at the descending laminectomy for decompression of MED.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendments in spirit of the present utility model and principle, equivalent replacement, improvement etc., all should within protection domain of the present utility model.
Claims (6)
1. a compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device, it is characterized in that: comprise long-armed pedicle of vertebral arch screw, longitudinal adapter, extending and dilator, the arm of described long-armed pedicle of vertebral arch screw is provided with arm external screw thread, described extending is cylindric, the hypomere of extending is provided with the female thread coordinated with described arm external screw thread, and long-armed pedicle of vertebral arch screw is connected by corresponding arm external screw thread and screw-internal thread fit to extending; The two ends of described longitudinal adapter are connected to two long-armed pedicle of vertebral arch screw lower ends of homonymy by nut; Described dilator comprises the first dilator and the second dilator, and the first dilator and the second dilator are arranged between two extendings with staggering up and down, for regulating distance between extending and angle.
2. compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device according to claim 1, it is characterized in that: described dilator comprises expansion link and is articulated with two holders at described expansion link two ends, described holder is individually fixed on described extending, by the distance between the telescopic adjustment extending of expansion link and angle.
3. compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device according to claim 2, it is characterized in that: described holder comprises cuff and lock screw, described cuff is sheathed on extending, is locked by lock screw.
4. compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device according to claim 3, it is characterized in that: described expansion link comprises screw rod and is located at the swivel nut cylinder at screw rod two ends, screw rod is provided with external screw thread, swivel nut cylinder is provided with the female thread coordinated with described external screw thread, be fixed with rotary handle in the middle part of described screw rod, and external screw thread direction screw rod laying respectively at rotary handle both sides is contrary.
5. compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device according to claim 3, it is characterized in that: described expansion link comprises two litter be parallel to each other and the control handle being connected two litter, between two litter, there is intersection, regulate the mutual displacement between two litter to realize elongation and the shortening of expansion link by control handle.
6. compressed fracture of thoracic vertebra and lumber vertebra minimal invasion pulling off reset device according to claim 5, it is characterized in that: in described extending, the cavity space of hypomere is large compared with the cavity space of epimere, and extending has observation port, the degree of depth of extending is screwed in for observing pedicle screw arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039852.8U CN205163218U (en) | 2015-12-08 | 2015-12-08 | Chest lumbar vertebrae compressibility fracture percutaneous wicresoft struts resetting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039852.8U CN205163218U (en) | 2015-12-08 | 2015-12-08 | Chest lumbar vertebrae compressibility fracture percutaneous wicresoft struts resetting means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205163218U true CN205163218U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521039852.8U Expired - Fee Related CN205163218U (en) | 2015-12-08 | 2015-12-08 | Chest lumbar vertebrae compressibility fracture percutaneous wicresoft struts resetting means |
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|---|---|
| CN (1) | CN205163218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361934A (en) * | 2015-12-08 | 2016-03-02 | 邵阳市中医医院 | Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device |
| CN105997210A (en) * | 2016-06-08 | 2016-10-12 | 常州迪恩医疗器械有限公司 | Spine minimally-invasive multi-azimuth orthopedic external fixing device |
-
2015
- 2015-12-08 CN CN201521039852.8U patent/CN205163218U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361934A (en) * | 2015-12-08 | 2016-03-02 | 邵阳市中医医院 | Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device |
| CN105997210A (en) * | 2016-06-08 | 2016-10-12 | 常州迪恩医疗器械有限公司 | Spine minimally-invasive multi-azimuth orthopedic external fixing device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161208 |