CN105361934A - Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device - Google Patents
Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device Download PDFInfo
- Publication number
- CN105361934A CN105361934A CN201510937442.3A CN201510937442A CN105361934A CN 105361934 A CN105361934 A CN 105361934A CN 201510937442 A CN201510937442 A CN 201510937442A CN 105361934 A CN105361934 A CN 105361934A
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- CN
- China
- Prior art keywords
- extending
- arm
- distraction
- dilator
- screw
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6433—Devices extending alongside the bones to be positioned specially adapted for use on body parts other than limbs, e.g. trunk or head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/645—Devices extending alongside the bones to be positioned comprising a framework
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Abstract
The invention discloses a thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device which comprises long-arm vertebral pedicle screws, a longitudinal connector, lengthened barrels and distraction devices. An arm external thread is arranged on the arm portion of each long-arm vertebral pedicle screw. The lengthened barrels are in a cylindrical shape. The lower section of each lengthened barrel is provided with an internal thread matched with the corresponding arm external thread. The long-arm vertebral pedicle screws and the lengthened barrels are connected through cooperation of the corresponding arm external threads and internal threads. The two ends of the longitudinal connector are connected to the lower ends of the two long-arm vertebral pedicle screws on the same side through nuts. The distraction devices comprise the first distraction device and the second distraction device which are vertically arranged between the two lengthened barrels in a staggered mode and used for adjusting the distance and angle between the lengthened barrels. According to the thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device, effective distraction can be achieved for thoracolumbar spine compression fracture percutaneous minimally invasive operation, a C-arm X-ray machine is used for observation in the distraction process to achieve gradual distraction, over distraction and insufficient distraction are effectively prevented, and operation controllability is strong.
Description
Technical field
The present invention relates to medical instruments field, particularly relate 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.
Summary of the invention
Technical problem to be solved by this invention, 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, the present invention 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 the present invention has is: the present invention 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 the preferred embodiment of the present invention;
Fig. 2 is the structural representation of the dilator of the preferred embodiment of the present invention;
Fig. 3 is the perspective view of the extending of the preferred embodiment of the present invention;
Fig. 4 is the cross-sectional view of the extending of the preferred embodiment of the present invention;
Fig. 5 is the cross-sectional view of the long-armed pedicle of vertebral arch screw of the preferred embodiment of the present invention.
Detailed description of the invention
For the understanding the present invention making those skilled in the art more clear and intuitive, below in conjunction with accompanying drawing, the present invention is further illustrated.
If Fig. 1-5 is the preferred embodiments of the present invention.
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 invention, not in order to limit the present invention, 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 (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 |
|---|---|---|---|
| CN201510937442.3A CN105361934A (en) | 2015-12-08 | 2015-12-08 | Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937442.3A CN105361934A (en) | 2015-12-08 | 2015-12-08 | Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105361934A true CN105361934A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510937442.3A Pending CN105361934A (en) | 2015-12-08 | 2015-12-08 | Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device |
Country Status (1)
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| CN (1) | CN105361934A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174329A (en) * | 2017-05-16 | 2017-09-19 | 李彦明 | A kind of universal restorer of centrum for orthopedic spinal surgery |
| CN108814695A (en) * | 2018-05-30 | 2018-11-16 | 广东知识城运营服务有限公司 | A kind of multi-faceted orthopedic external fixer of department of plastic surgery vertebral column minimally invasive |
| CN110269454A (en) * | 2019-07-08 | 2019-09-24 | 安俊平 | A kind of ornamental plant plantation frame |
| CN110652352A (en) * | 2019-10-09 | 2020-01-07 | 兰州大学第一医院 | Minimally invasive percutaneous screw vertebral body distractor |
| CN112998786A (en) * | 2021-04-13 | 2021-06-22 | 陈金兰 | Opening device for opening and resetting atlantoaxial dislocation |
| CN113796942A (en) * | 2020-06-17 | 2021-12-17 | 温冰涛 | Double-side reduction forceps for vertebral body slippage |
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| CN2439849Y (en) * | 2000-09-19 | 2001-07-25 | 吴建强 | Half-ring plane adjustable external fixing rack |
| CN1251648C (en) * | 2001-03-05 | 2006-04-19 | 奥叟菲克斯国际公司 | External fixation device for reducing bone fractures |
| CN2904965Y (en) * | 2006-02-24 | 2007-05-30 | 杭州市萧山区中医院 | A spine internal fixation device and tool dedicated therefor |
| CN202207197U (en) * | 2011-07-29 | 2012-05-02 | 王春 | Pedicle screw system spreader |
| CN203524753U (en) * | 2013-10-30 | 2014-04-09 | 侯忠军 | Angle and length adjustable external fixing device of phalanx fracture |
| CN204542331U (en) * | 2015-01-23 | 2015-08-12 | 北京中安泰华科技有限公司 | A kind of Bone Defect Repari fixture |
| CN205163218U (en) * | 2015-12-08 | 2016-04-20 | 邵阳市中医医院 | Chest lumbar vertebrae compressibility fracture percutaneous wicresoft struts resetting means |
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| CN2439849Y (en) * | 2000-09-19 | 2001-07-25 | 吴建强 | Half-ring plane adjustable external fixing rack |
| CN1251648C (en) * | 2001-03-05 | 2006-04-19 | 奥叟菲克斯国际公司 | External fixation device for reducing bone fractures |
| CN2904965Y (en) * | 2006-02-24 | 2007-05-30 | 杭州市萧山区中医院 | A spine internal fixation device and tool dedicated therefor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174329A (en) * | 2017-05-16 | 2017-09-19 | 李彦明 | A kind of universal restorer of centrum for orthopedic spinal surgery |
| CN107174329B (en) * | 2017-05-16 | 2019-11-05 | 李彦明 | A kind of universal restorer of centrum for orthopedic spinal surgery |
| CN108814695A (en) * | 2018-05-30 | 2018-11-16 | 广东知识城运营服务有限公司 | A kind of multi-faceted orthopedic external fixer of department of plastic surgery vertebral column minimally invasive |
| CN108814695B (en) * | 2018-05-30 | 2020-11-06 | 宋晓飞 | Orthopedic department spine minimally invasive multi-azimuth orthopedic external fixing device |
| CN110269454A (en) * | 2019-07-08 | 2019-09-24 | 安俊平 | A kind of ornamental plant plantation frame |
| CN110652352A (en) * | 2019-10-09 | 2020-01-07 | 兰州大学第一医院 | Minimally invasive percutaneous screw vertebral body distractor |
| CN113796942A (en) * | 2020-06-17 | 2021-12-17 | 温冰涛 | Double-side reduction forceps for vertebral body slippage |
| CN113796942B (en) * | 2020-06-17 | 2023-11-21 | 温冰涛 | Bilateral reset forceps for vertebral body slipping |
| CN112998786A (en) * | 2021-04-13 | 2021-06-22 | 陈金兰 | Opening device for opening and resetting atlantoaxial dislocation |
| CN112998786B (en) * | 2021-04-13 | 2022-05-06 | 陈金兰 | Opening device for opening and resetting atlantoaxial dislocation |
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Application publication date: 20160302 |
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