CN203619645U - Minimally invasive spine prying reconstructive external fixator - Google Patents
Minimally invasive spine prying reconstructive external fixator Download PDFInfo
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- CN203619645U CN203619645U CN201320652333.3U CN201320652333U CN203619645U CN 203619645 U CN203619645 U CN 203619645U CN 201320652333 U CN201320652333 U CN 201320652333U CN 203619645 U CN203619645 U CN 203619645U
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- prying
- screw
- sled
- minimally invasive
- external fixator
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Abstract
The utility model discloses a minimally invasive spine prying reconstructive external fixator which comprises a main screw rod 1, prying percutaneous vertebral pedicle screws 2 and prying devices. The prying devices comprise connecting parts 3, pushing pieces 4, fixing screws 5 and prying screws 6. The left end of the main screw rod 1 is movably installed in a main screw rod hole 31 in the left prying device and positioned by a nut 11, the right end of the main screw rod 1 is fixedly installed in a main screw rod hole 31 in the right prying device, and the left prying device and the right prying device are the same in structure and different in direction. The prying percutaneous vertebral pedicle screws 2 are installed in prying percutaneous vertebral pedicle screw holes 33 in the prying devices through abrasion preventing sleeves 22. According to the minimally invasive spine prying reconstructive external fixator, in-vitro surgery can be carried out, thoracolumbar fracture prying distraction restoration is achieved, no soft tissues of the skin need to be cut open, a patient can get out of bed one day to three days after the minimally invasive spine prying reconstructive external fixator is removed, the motion state obtained before the patient is injured is recovered in a short time, and the minimally invasive spine prying reconstructive external fixator is particularly suitable for elderly patients who are sixty years old to one hundred years old and have thoracolumbar fractures.
Description
Technical field
This utility model relates to a kind of bone surgery set, and particularly a kind of vertebral column minimally invasive sled is dialled reduction external fixator.
Background technology
At present, generally adopt following several method for the treatment of lumbar vertebra compression fracture both at home and abroad:
1, traditional open surgery pedicle screw and vertical shape rod are orthopedic interior fixing in conjunction with fracture is carried out.The weak point of this Therapeutic Method is large, hemorrhage many, the easy infection of wound, carries out again interior fixing removal surgery for the second time after 1 year in hospital, is adapted to the patient that body constitution is good (20～60 years old).
2. spinal column fixing orthopedic treatment outward.The feature of this Therapeutic Method be wound little, go out insufficiency of blood, easy infection not, after three months, after union of fracture, do not need to be again in hospital, directly in outpatient service, outer fixing orthosis is removed and can be gone home, the scope of adaptation is than traditional open surgery large (5～60 years old).Weak point be three months outer fixing orthopedic during nursing trouble, especially southern patient, because of the sweltering heat of weather can not have a bath (Tectonic external fixator of spinal column of many subsections CN200620052179.6, lumbar-thoracic spine external fixator CN200520051825.2).
Above two kinds of Therapeutic Method respectively have superiority for the treatment of lumbar vertebra compression fracture, and the scope for the treatment of is also different.But for advanced age lumbar vertebra compression fracture, osteoporosis, body constitution is poor, complication is many patient (60～100 years old), be all not suitable with by above-mentioned method.
Elderly patient (60～100 years old), after lumbar vertebra compression fracture, generally adopts the expectant treatment method of long-term bed.Most elderly patients are in the expectant treatment of long-term bed, owing to occurring that multiple complication causes death.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and provides a kind of vertebral column minimally invasive sled to dial reduction external fixator, and its wound is little, is difficult for causing infecting, and the range of age that is suitable for sufferer is larger than traditional open surgery.
The technical solution of the utility model is: a kind of vertebral column minimally invasive sled is dialled reduction external fixator, and it includes driving screw, sled is dialled percutaneous cervical arc root screw and prying and pulling device; Driving screw left end is thread segment, and nut is installed on thread segment; Driving screw left end is movably arranged in the driving screw hole of left prying and pulling device, and locates with nut, and right-hand member is fixedly mounted in the driving screw hole of right prying and pulling device, and left prying and pulling device and right prying and pulling apparatus structure equidirectional are in opposite directions; Sled group percutaneous cervical arc root screw is arranged on the sled of prying and pulling device and dials in percutaneous cervical arc root screw hole, and can be tilted in hole.
The further technical scheme of this utility model is: prying and pulling device comprises connector, push sheet, hold-down screw, prying and pulling screw, connector one side has driving screw hole, opposite side is the hollow box body of upper end open, the upper end open of hollow box body be shaped as ellipse, the bottom of hollow box body has a sled to dial percutaneous cervical arc root screw hole, side has slot, pushing sheet is movably arranged on by hold-down screw in the hollow box body of connector, and hold-down screw can drive to be pushed sheet and moves in slot, prying and pulling screw is arranged on connector by screw thread, its end with push sheet and contact.
This utility model further technical scheme is: push the up-small and down-big right-angled trapezium of being shaped as of sheet, the 3-5 that its height is its bottom side length doubly, pushes sheet middle part and is provided with hold-down screw installing hole.
This utility model further technical scheme is: sled is dialled percutaneous cervical arc root screw and comprised screw and anti-wear sleeve pipe, on screw, there is external screw thread, top is outer-hexagonal, bottom is tip-angled shape, anti-wear sleeve pipe is hollow pipe, internal diameter size and the external diameter size of screw of anti-wear sleeve pipe adapt, and anti-wear casing pipe sleeve is contained in the middle part of screw.
This utility model, owing to adopting as above design, compared with prior art, has following features:
1, this utility model is due to operation in vitro, can make breast pelvic bone folding sled dial distraction reduction, without cutting skin soft tissue, removing after vertebral column minimally invasive sled group reduction external fixator, patient can leave the bed for 1～3 day, recover at short notice injured front kinestate, be particularly suitable for the patients with thoracolumbar fracture at advanced age (patients with thoracolumbar fracture at advanced age of 60～100 years old is attended by osteoporosis, cardiovascular system diseases etc., and conventional therapy has a big risk) of 60～100 years old more.
2, vertebral column minimally invasive sled group reduction external fixator can produce breast lumbar vertebral body to prize to dial and open, the height of restore intravertebral front pillar.
3, vertebral column minimally invasive sled is dialled reduction external fixator and can longitudinally be strutted recovery vertebral body whole height to the generation of breast lumbar vertebral body.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural representation of this utility model prying and pulling assembly;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 is the left view of Fig. 3.
Detailed description of the invention
Below in conjunction with figure and embodiment, detailed structure of the present utility model is further described.
As shown in Figure 1-2: a kind of vertebral column minimally invasive sled is dialled reduction external fixator, and it includes driving screw 1, sled is dialled percutaneous cervical arc root screw 2 and prying and pulling device, driving screw 1 left end is thread segment, and nut 11 is installed on thread segment, sled is dialled percutaneous cervical arc root screw 2 and is comprised screw 21 and anti-wear sleeve pipe 22, on screw 21, there is external screw thread, top is outer-hexagonal, bottom is tip-angled shape, anti-wear sleeve pipe 22 is hollow pipe, internal diameter size and the external diameter size of screw 21 of anti-wear sleeve pipe 22 adapt, and anti-wear sleeve pipe 22 is sleeved on the middle part of screw 21, prying and pulling device comprises connector 3, push sheet 4, hold-down screw 5, prying and pulling screw 6(is as shown in Fig. 3-6), connector 3 one sides have driving screw hole 31, opposite side is the hollow box body of upper end open, the upper end open of hollow box body be shaped as oval 32, the bottom of hollow box body has a sled to dial percutaneous cervical arc root screw hole 33, side has slot 34, push the up-small and down-big right-angled trapezium of being shaped as of sheet 4, the 3-5 that its height is its bottom side length doubly, push sheet 4 middle parts and be provided with hold-down screw installing hole 41, it is movably arranged on by hold-down screw 5 in the hollow box body of connector 3, and hold-down screw 5 can drive pushes sheet 4 in the interior movement of slot 34, prying and pulling screw 6 is arranged on connector 3 by screw thread, its end contacts with the top of the right-angle side of pushing sheet 4, driving screw 1 left end is movably arranged in the driving screw hole 31 of left prying and pulling device, and locates with nut 11, and right-hand member is fixedly mounted in the driving screw hole 31 of right prying and pulling device, and left prying and pulling device and right prying and pulling apparatus structure equidirectional are in opposite directions, the sled that sled group percutaneous cervical arc root screw 2 is arranged on prying and pulling device by anti-wear sleeve pipe 22 is dialled in percutaneous cervical arc root screw hole 33, and can be tilted in sled group percutaneous cervical arc root screw hole 33 within the scope of 30 degree, sled is dialled the edge mouth place rounding processing in percutaneous cervical arc root screw hole 33.
Operation principle of the present utility model and using method are: two groups of this utility model are arranged in parallel, sled is dialled to percutaneous cervical arc root screw 2 lower ends to be positioned on two vertebras that adjoin with damaged vertebra, regulate afterwards prying and pulling screw 6, making to push sheet 4 tilts, dial percutaneous cervical arc root screw 2 by pushing the sled that sheet 4 pushes on left and right prying and pulling device, make sled on left and right prying and pulling device dial percutaneous cervical arc root screw 2 and be inclined to "eight" shape to direction in opposite directions, thereby two vertebras that are positioned are strutted, be convenient to follow-up operation.
Claims (7)
1. vertebral column minimally invasive sled is dialled a reduction external fixator, it is characterized in that including driving screw, sled group percutaneous cervical arc root screw and prying and pulling device; Driving screw left end is thread segment, and nut is installed on thread segment; Driving screw left end is movably arranged in the driving screw hole of left prying and pulling device, and locates with nut, and right-hand member is fixedly mounted in the driving screw hole of right prying and pulling device, and left prying and pulling device and right prying and pulling apparatus structure equidirectional are in opposite directions; Sled group percutaneous cervical arc root screw is arranged on the sled of prying and pulling device and dials in percutaneous cervical arc root screw hole, and can be tilted in hole.
2. vertebral column minimally invasive sled as claimed in claim 1 is dialled reduction external fixator, it is characterized in that prying and pulling device comprises connector, push sheet, hold-down screw, prying and pulling screw, connector one side has driving screw hole, opposite side is the hollow box body of upper end open, the upper end open of hollow box body be shaped as ellipse, the bottom of hollow box body has a sled to dial percutaneous cervical arc root screw hole, side has slot, pushing sheet is movably arranged on by hold-down screw in the hollow box body of connector, and hold-down screw can drive to be pushed sheet and moves in slot, prying and pulling screw is arranged on connector by screw thread, its end with push sheet and contact.
3. vertebral column minimally invasive sled as claimed in claim 1 or 2 is dialled reduction external fixator, it is characterized in that pushing the up-small and down-big right-angled trapezium of being shaped as of sheet, and the 3-5 that its height is its bottom side length doubly, pushes sheet middle part and is provided with hold-down screw installing hole.
4. vertebral column minimally invasive sled as claimed in claim 1 or 2 is dialled reduction external fixator, it is characterized in that sled group percutaneous cervical arc root screw comprises screw and anti-wear sleeve pipe, on screw, there is external screw thread, top is outer-hexagonal, bottom is tip-angled shape, anti-wear sleeve pipe is hollow pipe, and internal diameter size and the external diameter size of screw of anti-wear sleeve pipe adapt, and anti-wear casing pipe sleeve is contained in the middle part of screw.
5. vertebral column minimally invasive sled as claimed in claim 3 is dialled reduction external fixator, it is characterized in that sled group percutaneous cervical arc root screw comprises screw and anti-wear sleeve pipe, on screw, there is external screw thread, top is outer-hexagonal, bottom is tip-angled shape, anti-wear sleeve pipe is hollow pipe, and internal diameter size and the external diameter size of screw of anti-wear sleeve pipe adapt, and anti-wear casing pipe sleeve is contained in the middle part of screw.
6. vertebral column minimally invasive sled as claimed in claim 1 is dialled reduction external fixator, it is characterized in that the edge mouth place rounding in sled group percutaneous cervical arc root screw hole.
7. vertebral column minimally invasive sled as claimed in claim 2 is dialled reduction external fixator, it is characterized in that prying and pulling tip of screw contacts with the top of the right-angle side of pushing sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652333.3U CN203619645U (en) | 2013-10-22 | 2013-10-22 | Minimally invasive spine prying reconstructive external fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652333.3U CN203619645U (en) | 2013-10-22 | 2013-10-22 | Minimally invasive spine prying reconstructive external fixator |
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| CN203619645U true CN203619645U (en) | 2014-06-04 |
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| CN201320652333.3U Expired - Lifetime CN203619645U (en) | 2013-10-22 | 2013-10-22 | Minimally invasive spine prying reconstructive external fixator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103519874A (en) * | 2013-10-22 | 2014-01-22 | 宋西正 | External fixing device for minimally invasive spine leverage reduction |
| CN104997556A (en) * | 2015-08-05 | 2015-10-28 | 董晖 | Support reductor for treating tibial plateau fracture |
| CN107028647A (en) * | 2017-04-06 | 2017-08-11 | 广东施泰宝医疗科技有限公司 | A kind of multi-segmental tandem Spondylitis ankylosing support |
| CN107137136A (en) * | 2017-05-12 | 2017-09-08 | 王文军 | The connectivity kit of subcutaneous flexible spinal internal fixation system |
| US9907582B1 (en) | 2011-04-25 | 2018-03-06 | Nuvasive, Inc. | Minimally invasive spinal fixation system and related methods |
| CN111493990A (en) * | 2020-06-03 | 2020-08-07 | 北京市昌平区医院 | Percutaneous minimally invasive in-vitro reduction integrated device for vertebral fracture |
-
2013
- 2013-10-22 CN CN201320652333.3U patent/CN203619645U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9907582B1 (en) | 2011-04-25 | 2018-03-06 | Nuvasive, Inc. | Minimally invasive spinal fixation system and related methods |
| US10716600B1 (en) | 2011-04-25 | 2020-07-21 | Nuvasive, Inc. | Minimally invasive spinal fixation system |
| US11596453B2 (en) | 2011-04-25 | 2023-03-07 | Nuvasive, Inc. | Minimally invasive spinal fixation system |
| CN103519874A (en) * | 2013-10-22 | 2014-01-22 | 宋西正 | External fixing device for minimally invasive spine leverage reduction |
| CN103519874B (en) * | 2013-10-22 | 2017-02-08 | 宋西正 | External fixing device for minimally invasive spine leverage reduction |
| CN104997556A (en) * | 2015-08-05 | 2015-10-28 | 董晖 | Support reductor for treating tibial plateau fracture |
| CN107028647A (en) * | 2017-04-06 | 2017-08-11 | 广东施泰宝医疗科技有限公司 | A kind of multi-segmental tandem Spondylitis ankylosing support |
| CN107028647B (en) * | 2017-04-06 | 2023-05-09 | 广东施泰宝医疗科技有限公司 | Multi-section serial-type spine external fixation support |
| CN107137136A (en) * | 2017-05-12 | 2017-09-08 | 王文军 | The connectivity kit of subcutaneous flexible spinal internal fixation system |
| CN111493990A (en) * | 2020-06-03 | 2020-08-07 | 北京市昌平区医院 | Percutaneous minimally invasive in-vitro reduction integrated device for vertebral fracture |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |