CN104983456B - Thoracolumbar disk anterior plate is longitudinally finely tuned and pressue device - Google Patents
Thoracolumbar disk anterior plate is longitudinally finely tuned and pressue device Download PDFInfo
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- CN104983456B CN104983456B CN201510258340.9A CN201510258340A CN104983456B CN 104983456 B CN104983456 B CN 104983456B CN 201510258340 A CN201510258340 A CN 201510258340A CN 104983456 B CN104983456 B CN 104983456B
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- thoracolumbar disk
- anterior plate
- bone screw
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses a kind of Thoracolumbar disk anterior plate is longitudinally finely tuned and pressue device，It is characterized in that Thoracolumbar disk anterior plate lower surface is matched with Thoracolumbar disk physiological camber，Thoracolumbar disk anterior plate is respectively arranged on the left side and the right side bar hole，Bar shaped hole wall is provided with internal tooth，In the bar hole of bone screw front end insertion Thoracolumbar disk anterior plate，Rear end is connected with fastening nut，Bone screw rearward end is provided with the gear being meshed with the internal tooth on bar shaped hole wall，During use，Two bone screw are squeezed into into two adjacent vertebral bodies respectively，Thoracolumbar disk anterior plate is put again and connects fastening nut，Thoracolumbar disk anterior plate is made to press to patient's Thoracolumbar disk，Two bone screw are longitudinally finely tuned with internal tooth by gear，Realize the more preferable positioning of bone screw，Vertebral body is lifted by bone screw simultaneously，Recover the height of patient disc and intervertebral foramina，Recover the height of patient disc and intervertebral foramina，Rebuild Thoracolumbar disk stability，It is simple with operation side、It is easy for installation，It is safe and reliable、The advantages of therapeutic effect is good.
Description
Technical field
The present invention relates to technical field of medical instruments, specifically a kind of anterior plate for treating human body Thoracolumbar disk disease
Longitudinal direction fine setting and pressue device.
Background technology
Thoracolumbar disk anterior lateral cervical approach is Hodgson first by person, mainly carries out drain to tuberculosis abscess at that time,
Also the anterior stabilization for being used in scoliosis in 1954.Wenger uses anterior lateral cervical approach to scoliosis first within 1953
Carry out apparatus to fix, fixing meanss are to be coupled one group of steel wire or threaded bar in vertebral body side screw.Front road fix apparatus and
In modus operandi evolution, the respective work of the scholar such as Dwyer, New ton, Hall and Zielke is also projected very much.
With regard to lumbar vertebra compression fracture, using anterior approach it is earliest be Bohlman, be primarily directed to late period canalis spinalis compressing patient at that time
Carry out;With using in treating in acute fracture successfully, various Anterior fixation devices just emerge in an endless stream.
The surgical interventions such as lumbar vertebra compression fracture, regression, malformation correction are extensively adopted for orthopedics circle, anterior plate fixing meanss
With its significant clinical characters, still become clinical key content in recent years.At present, the material of anterior plate is mainly titanium and closes
Gold, intensity and biocompatibility it is relatively good, nuclear-magnetism inspection can also be received.Steel plate is removed and the strength of materials to the stability of spinal column
Have outside the Pass, which is rational in infrastructure particularly significant.Anterior decompression and fusion are in addition to decompression purpose is reached, moreover it is possible to recover intervertebral disc and
The height of intervertebral foramina, rebuilds Thoracolumbar disk stability.There are some researches show, no matter which kind of pedicle posterior surgical approach breast used
Lumbar vertebra fracture, long-term postoperative Loss of correction are the complication of a more difficult prevention.Front road bone grafting and interior fixation can be knot before spinal column
Structure provides strong support, and makes spinal column recover enough stability.Front road intervertebral fusion compared with Posterior Fusion, vertebral body
Between larger contact surface and abundant blood supply provide more preferably implant bed, thus fusion has higher success rate.When after
After the fusion failure of road, anterior stabilization art often becomes even more ideal or even unique selection.
The content of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, there is provided a kind of simple to operate, good stability, can be with most
The decompression of few sections and the fusion of minimum range of activity, ensure the employing Thoracolumbar disk anterior plate tooth of the physiological activity of spinal column
Shape is engaged, and realizes Thoracolumbar disk anterior plate longitudinally fine setting and pressue device.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of Thoracolumbar disk anterior plate is longitudinally finely tuned and pressue device, including Thoracolumbar disk anterior plate, bone screw and fastening
Nut, it is characterised in that Thoracolumbar disk anterior plate lower surface is matched with Thoracolumbar disk physiological camber, Thoracolumbar disk anterior plate or so
Bar hole is respectively provided on two sides with, bar shaped hole wall is provided with internal tooth, in the bar hole of bone screw front end insertion Thoracolumbar disk anterior plate,
Rear end is connected with fastening nut, and bone screw rearward end is provided with the gear being meshed with the internal tooth on bar shaped hole wall.
Thoracolumbar disk anterior plate of the present invention is respectively arranged on the left side and the right side isometrical bar shaped unthreaded hole, the front road steel of Thoracolumbar disk
The lower surface of plate, the periphery of bar hole are provided with internal tooth, and Thoracolumbar disk anterior plate is inserted screw by unthreaded hole, screw gear is made
Fastening nut is meshed and is screwed on the internal tooth on Thoracolumbar disk anterior plate, in the coupling mechanism force and the tooth being meshed of fastening nut
In the presence of wheel, internal tooth, make bone screw finely tune along Thoracolumbar disk anterior plate both sides and vertebral body be lifted by bone screw, recover vertebral body
Height and the dual function of fine setting.
With fastening nut in split shape, fastening nut is connected bone screw of the present invention with bone screw Jing screw thread, bone
The diameter of screw and fastening nut auxiliary section less than bar hole minimum diameter on Thoracolumbar disk anterior plate, gear with diameter greater than breast
The maximum gauge of bar hole on lumbar vertebra anterior steel plate, to facilitate operation.
When the present invention is used, two bone screw are squeezed into into two adjacent vertebral bodies respectively, then Thoracolumbar disk anterior plate is passed through into bar shaped
Hole is through in the bone screw of the different vertebral bodys of two implantation and connects fastening nut, the internal tooth and bone on Thoracolumbar disk anterior plate lower surface
Gear on screw is meshed, and by rotational fastener nut, makes Thoracolumbar disk anterior plate press to patient's Thoracolumbar disk, while passing through tooth
Wheel makes two bone screw carry out longitudinal fine setting with the internal tooth cooperation on Thoracolumbar disk anterior plate lower surface, realizes the more preferably fixed of bone screw
Position, while bone screw plays the role of to lift vertebral body, recovers the height of patient disc and intervertebral foramina, rebuilds Thoracolumbar disk stability,
Thoracolumbar disk anterior plate, nail, the material of fixed screw adopt titanium alloy, and intensity and biocompatibility are all relatively good, may be used also
To receive nuclear-magnetism inspection, with rational in infrastructure, work side is simple, easy for installation, the advantages of safe and reliable, therapeutic effect is good.
Description of the drawings
Fig. 1 is a kind of structural decomposition diagram of the present invention.
Fig. 2 is a kind of structural representation of mesothorax lumbar vertebra anterior steel plate of the present invention, and wherein Fig. 2-1 is front view, and Fig. 2-2 is
Top view, Fig. 2-3 are look up figure.
Fig. 3 is a kind of structural representation of bone screw in the present invention, and 3-1 is front view, and Fig. 3-2 is look up figure.
Fig. 4 is a kind of structural representation of fastening nut of the present invention.
Label in figure：1 Thoracolumbar disk anterior plate, 2 bone screw, 3 fastening nuts, 4 Thoracolumbar disk anterior plate bar holes, in 5
Tooth, 6 gears.
Specific embodiment
With reference to Fig. 1, the invention will be further described：
As illustrated, a kind of Thoracolumbar disk anterior plate is longitudinally finely tuned and pressue device, including Thoracolumbar disk anterior plate 1, bone
Screw 2 and fastening nut 3, the structure and the interconnected relationship between them of above-mentioned each ingredient are same as the prior art,
This does not repeat, it is a feature of the present invention that Thoracolumbar disk anterior plate lower surface is matched with Thoracolumbar disk physiological camber, before Thoracolumbar disk
Road steel plate is respectively arranged on the left side and the right side bar hole 4, and bar shaped hole wall is provided with internal tooth 5, the front road steel of 2 front end of bone screw insertion Thoracolumbar disk
In the bar hole 4 of plate 1,2 rear end of bone screw is connected with fastening nut 3,2 rearward end of bone screw be provided with bar shaped hole wall in
The gear 6 that tooth 5 is meshed, Thoracolumbar disk anterior plate of the present invention 1 are respectively arranged on the left side and the right side symmetrical, isometrical bar
Shape unthreaded hole, the lower surface of Thoracolumbar disk anterior plate 1, the periphery of bar hole are provided with internal tooth 5, by unthreaded hole by Thoracolumbar disk anterior plate
On 1 insertion screw 2, bone screw gear 6 is made to be meshed with the internal tooth 5 of Thoracolumbar disk anterior plate 1 and screw on fastening nut 3,
The lower teeth groove of the bone screw 2 in the presence of gear 6 on 1 lower surface of Thoracolumbar disk anterior plate of coupling mechanism force effect of fastening nut 3
Displacement, makes bone screw finely tune along Thoracolumbar disk anterior plate both sides and lift vertebral body by screw, recovers the dual work of vertebral height
With in addition, described bone screw 2 and fastening nut 3 are in split shape, fastening nut 3 is connected with 2 Jing screw threads of bone screw, murices
Nail 2 is less than 4 minimum diameter of bar hole on Thoracolumbar disk anterior plate 1, the diameter of gear 6 with the diameter of 3 mating part of fastening nut
More than the maximum gauge of bar hole 4 on Thoracolumbar disk anterior plate 1, to facilitate operation, internal tooth of the present invention 5 to be provided in breast
The lower surface of lumbar vertebra anterior steel plate, the periphery of bar hole, internal tooth 5 are usually that continuous setting forms ring gear, it is also possible to discontinuous
Setting equably arranges internal tooth, can also be discontinuous, is unevenly provided with internal tooth, is only needing to what bone screw was adjusted
Region arranges internal tooth 5, when the present invention is used, two bone screw is squeezed into two adjacent vertebral bodies respectively, then Thoracolumbar disk anterior plate is led to
Bar hole is crossed through in the bone screw of the different vertebral bodys of two implantation and connects fastening nut, the tooth on Thoracolumbar disk anterior plate lower surface
Groove is meshed with the gear in bone screw, by rotational fastener nut, makes Thoracolumbar disk anterior plate press to patient's Thoracolumbar disk, while
Make two bone screw to carry out longitudinal fine setting with the teeth groove on Thoracolumbar disk anterior plate lower surface by gear, realize the more preferable of bone screw
Positioning, while lifting vertebral body by bone screw, recovers the height of patient disc and intervertebral foramina, rebuilds Thoracolumbar disk stability, breast
Lumbar vertebra anterior steel plate, nail, the material of fixed screw adopt titanium alloy, and intensity and biocompatibility are all relatively good, can be with
Receive nuclear-magnetism inspection, with rational in infrastructure, work side is simple, easy for installation, the advantages of safe and reliable, therapeutic effect is good.
Claims (1)
1. a kind of Thoracolumbar disk anterior plate is longitudinally finely tuned and pressue device, including Thoracolumbar disk anterior plate, bone screw and fastening spiral shell
Cap, it is characterised in that Thoracolumbar disk anterior plate lower surface is matched with Thoracolumbar disk physiological camber, Thoracolumbar disk anterior plate or so two
Side is respectively equipped with bar hole, and described bar hole is isometrical bar shaped unthreaded hole, the lower surface of Thoracolumbar disk anterior plate, bar hole
Periphery is provided with internal tooth, and in the bar hole of bone screw front end insertion Thoracolumbar disk anterior plate, rear end is connected with fastening nut, murices
Nail rearward end is provided with the gear being meshed with the internal tooth on bar shaped hole wall, and bone screw and fastening nut are in split shape, fastening nut
It is connected with bone screw Jing screw thread, the diameter of bone screw and fastening nut auxiliary section is less than bar hole on Thoracolumbar disk anterior plate most
Minor diameter, the maximum gauge with diameter greater than bar hole on Thoracolumbar disk anterior plate of gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258340.9A CN104983456B (en) | 2015-05-20 | 2015-05-20 | Thoracolumbar disk anterior plate is longitudinally finely tuned and pressue device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258340.9A CN104983456B (en) | 2015-05-20 | 2015-05-20 | Thoracolumbar disk anterior plate is longitudinally finely tuned and pressue device |
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| Publication Number | Publication Date |
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| CN104983456A CN104983456A (en) | 2015-10-21 |
| CN104983456B true CN104983456B (en) | 2017-03-29 |
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| CN201510258340.9A Active CN104983456B (en) | 2015-05-20 | 2015-05-20 | Thoracolumbar disk anterior plate is longitudinally finely tuned and pressue device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105455888B (en) * | 2015-12-02 | 2018-06-26 | 四川大学华西医院 | Thoracolumbar spine anterior adjustable zero-incisura minimally-invasive supporting steel plate |
| CN111969529A (en) * | 2020-09-02 | 2020-11-20 | 南京特瑞线路器材有限公司 | Special-shaped tension-resistant yoke plate for power transmission line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4119092A (en) * | 1976-04-21 | 1978-10-10 | Gil Jose Luis | Methods of reduction of bone fractures |
| CN2393492Y (en) * | 1999-11-10 | 2000-08-30 | 金大地 | Inner fixator in front of dorsal and lumbar vertebras |
| CN202184786U (en) * | 2011-07-14 | 2012-04-11 | 李立新 | Thoracic-lumbar vertebra anterior steel plate |
| CN204671257U (en) * | 2015-05-20 | 2015-09-30 | 上海长征医院 | Thoracolumbar disk anterior plate is fine setting and pressue device longitudinally |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007151674A (en) * | 2005-12-01 | 2007-06-21 | Hidetoshi Onoe | Bone plate |
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2015
- 2015-05-20 CN CN201510258340.9A patent/CN104983456B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4119092A (en) * | 1976-04-21 | 1978-10-10 | Gil Jose Luis | Methods of reduction of bone fractures |
| CN2393492Y (en) * | 1999-11-10 | 2000-08-30 | 金大地 | Inner fixator in front of dorsal and lumbar vertebras |
| CN202184786U (en) * | 2011-07-14 | 2012-04-11 | 李立新 | Thoracic-lumbar vertebra anterior steel plate |
| CN204671257U (en) * | 2015-05-20 | 2015-09-30 | 上海长征医院 | Thoracolumbar disk anterior plate is fine setting and pressue device longitudinally |
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| CN104983456A (en) | 2015-10-21 |
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Address after: 200003 Fengyang Road, Shanghai, No. 415, No. Co-patentee after: China Medical Instruments (Beijing) Co., Ltd. Patentee after: Shanghai Changzheng Hospital Address before: 200003 Fengyang Road, Shanghai, No. 415, No. Co-patentee before: Beijing Orthopedic Innovation Inc. Patentee before: Shanghai Changzheng Hospital |