CN2075068U - Spinal column stabilizer - Google Patents
Spinal column stabilizer Download PDFInfo
- Publication number
- CN2075068U CN2075068U CN 90222196 CN90222196U CN2075068U CN 2075068 U CN2075068 U CN 2075068U CN 90222196 CN90222196 CN 90222196 CN 90222196 U CN90222196 U CN 90222196U CN 2075068 U CN2075068 U CN 2075068U
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- CN
- China
- Prior art keywords
- screw
- sealing chamber
- spinal column
- dual
- spinal
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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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Abstract
The utility model relates to an inner fixing device for a spinal column vertebral body. The spinal column is used as an important column for human body's load bearing and motion, and accordingly, the stability is very important. The utility model aims to provide a novelspinal column stabilizer which has stable mechanical property, convenient operation and strong torsion-resistant ability and has no looseness, slip and damage for soft tissues. Two screws which are adjacent to the special type screw of a sealing chamber are connected through a pair of dual U-shaped connectors and are fixed on the screw of the sealing chamber through the fastening screws of the connectors, and accordingly, the stabilizer is formed.
Description
This utility model is a kind of internal fixation apparatus that is used for spinal vertebral.
Spinal column is as the load-bearing of human body, active mainstay, its stability has critical role, in the field that spinal surgery is learned, the method of using internal fixation has had quite long history at home and abroad, method that is adopted and internal fixation apparatus are various, but because the form difference of various internal fixation utensils, the structure difference, all have very high specificity again, often bring certain difficulty to operation technique, effect is still very imperfect, the complication of postoperative is more, therefore can not get using widely.From spinal column steel plate Harrington ' s(He Shi) excellent, Lugwe ' s(Lu Geshi) excellent to similar apparatuses in improvement back such as memorial alloy rods, in stabilizing spine treatment in the past, played certain effect, but its certain limitation is arranged all in practical clinical, the operation technique difficulty is complicated, operation wound is also bigger, and is hemorrhage many, the steadiness deficiency, antitorque commentaries on classics performance is bad, and the loosening slippage that has a postoperative apparatus common complication such as fracture.
In recent years, the research and the use of footpath pedicle of vertebral arch internal fixation of spine have constantly been carried out both at home and abroad.Domestic doctor the People's Hospital, north Jiangization dragons in 1989 etc. have been designed footpath pedicle of vertebral arch internal fixation apparatus, " spiral shell rod " with a kind of specification replaced specification and different spinal column steel plate, though certain progress is arranged, but still there is certain deficiency in using, longer as the spiral shell root, and adopt plain nut fastening, in operation, acquire a certain degree of difficulty.Organization exposure is bigger, and soft tissue injury is bigger, and a plurality of plain nuts are fastening, and is complicated and the factor of loosening different button is arranged, and need be bitten unnecessary spiral shell rod part broken with grampus after perform the operation, so leave the factor that sharp end impairs soft tissue.Simultaneously, because the spiral shell rod is the round thread roller, so lifting surface area is less, antitorque commentaries on classics performance is bad.
The purpose of this utility model is to provide a kind of mechanical performance firm, does not produce loosening and slippage, not the firm device of new spinal of the strong and facilitating operation of soft tissue injury's torsional rotation force.
This utility model is realized as follows: accompanying drawing 1 is spinal column and firm device side position sketch map, 1 spinal vertebral among the figure; 2 have the special type screw of sealing chamber, 3 dual U-shaped adapters, 4 adapter trip bolts.Special type screw structure with sealing chamber has a cylindrical hole 5 as shown in Figure 3 on the axis of screw, the hole contains female thread, and the both sides in hole have a pair of and dual U-shaped adapter sealing chamber 6 movingly.Therefore the angle of screw thread bus and screw axis is difficult for producing loosening and slippage near 90 degree in spongy bone.The dual U-shaped adapter as shown in Figure 2, it is made with the square column type material, (cross section is rectangular).Therefore torsional rotation force is strong.The trip bolt shape of adapter as shown in Figure 4, its screw thread matches with sealing chamber screw centre bore female thread.Each parts is all selected international standard internal fixation material 316-L for use, has good biocompatibility.Its using method as shown in Figure 1.
This utility model has excellent curative to following disease:
1. the caused unstable spine of spinal trauma is fixed, as the slippage of the fracture and the vertebral body articular process of spinal column.
2. spinal canal stenosis, prolapse of intervertebral disc disease, the unstable spine due to the tumor in the Taper Pipe, the wide little articular process excision of model vertebral plate is fixed.
3. the unstable spine due to the regression in lumbar vertebra and little joint, slippage is fixed.
4. lopsided and unstable due to the healing shape spinal tuberculosis.
5. the orthopedic of scoliosis, and kyphosis deformity fixed.
The firm device of new spinal provided by the utility model is not only simple in structure, volume is little, and operation technique is convenient, particularly supporting stapling apparatus, according to the physiological location of normal spinal column with require to reach good firm, there are not undesirable elements such as distortion slippage, the unstable and deformity (protruding behind the lateral bending) that the multiple reason of spinal column causes, all can be general, think through clinical practice to replace existing internal fixation of spine apparatus fully.
Claims (3)
1, the firm device of a kind of spinal vertebral is characterized in that by the special type screw with sealing chamber [2], and its two adjacent screws are linked by a pair of dual U-shaped adapter [3], and is fixed on the sealing chamber screw [2] by connected device trip bolt [4] and constitutes.
2, it is characterized in that on the axis of described sealing chamber screw a cylindrical hole (5) being arranged according to the firm device of the described spinal vertebral of claim 1, the hole contains female thread, the both sides in hole have a pair of and dual U-shaped adapter sealing chamber (6) movingly, and the screw thread bus of screw and screw axis angle are near 90 degree.
3, according to the firm device of the described vertebral body of claim 1, it is characterized in that the cross section of described dual U-shaped adapter is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90222196 CN2075068U (en) | 1990-10-25 | 1990-10-25 | Spinal column stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90222196 CN2075068U (en) | 1990-10-25 | 1990-10-25 | Spinal column stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2075068U true CN2075068U (en) | 1991-04-17 |
Family
ID=4900182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90222196 Withdrawn CN2075068U (en) | 1990-10-25 | 1990-10-25 | Spinal column stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2075068U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476704A (en) * | 2015-12-17 | 2016-04-13 | 周建明 | Anterior cervical plate fixation system |
| CN111134911A (en) * | 2018-11-06 | 2020-05-12 | 天津富华医疗科技有限公司 | Bionic artificial spinal joint |
| CN111134904A (en) * | 2018-11-06 | 2020-05-12 | 天津富华医疗科技有限公司 | Bionic artificial hip joint |
-
1990
- 1990-10-25 CN CN 90222196 patent/CN2075068U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476704A (en) * | 2015-12-17 | 2016-04-13 | 周建明 | Anterior cervical plate fixation system |
| CN105476704B (en) * | 2015-12-17 | 2019-01-25 | 浙江康慈医疗科技有限公司 | Anterior locking cervical plate system |
| CN111134911A (en) * | 2018-11-06 | 2020-05-12 | 天津富华医疗科技有限公司 | Bionic artificial spinal joint |
| CN111134904A (en) * | 2018-11-06 | 2020-05-12 | 天津富华医疗科技有限公司 | Bionic artificial hip joint |
| CN111134911B (en) * | 2018-11-06 | 2022-03-01 | 贵州澳特拉斯科技有限公司 | Bionic artificial spinal joint |
| CN111134904B (en) * | 2018-11-06 | 2022-03-01 | 贵州澳特拉斯科技有限公司 | Bionic artificial hip joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |