CN2655820Y - Sacrum screw combining rod-in plate fixing device - Google Patents
Sacrum screw combining rod-in plate fixing device Download PDFInfo
- Publication number
- CN2655820Y CN2655820Y CN 03210706 CN03210706U CN2655820Y CN 2655820 Y CN2655820 Y CN 2655820Y CN 03210706 CN03210706 CN 03210706 CN 03210706 U CN03210706 U CN 03210706U CN 2655820 Y CN2655820 Y CN 2655820Y
- Authority
- CN
- China
- Prior art keywords
- rod
- screw
- sacrum
- fixing device
- rumpbone
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
A fixing device inside a board of a sacrum screw combining bar belongs to the medical apparatus technological art, characterized in that the utility model comprises a sacrum supporting bar and the correspondingly equipped sacrum screw, and a universal flexible screw, wherein one end of the sacrum supporting bar is connected with a connection nail plate with nail holes in an obtuse angle. The fixation form is scientific and reasonable, and the fixation structure is more stable. The fixation device is distributed along a principal stress line conducted by the sacrum bar, which acts the similar function of an arc bridge, and forms a new composed structure with the pelvis to make the pelvis ring more stable, which accords to the biology force principle. The strain, the offset, the rigidity and the limit loading has no significance difference with a normal pelvis, which is advantageous than the prior inner fixation method. And the device has simple structure and convenient operation , which is safe and effective.
Description
[technical field]
This utility model belongs to technical field of medical instruments, is meant that specifically a kind of sacral screw is in conjunction with rod--the plate inner fixing device.
[background technology]
Pelvis C type fracture (Tile typing) is more common in vehicle accident, high-altitude high-energy damage such as fall, and is all unstable on vertical and horizontal direction, is the most serious one type of damage in the fracture of pelvis, and it treats difficult, and complication is more.Chinese scholars is advocated positive open reduction internal fixation treatment at present, to reduce its disability rate.Various in recent years operation fixing meanss day by day increase, as sacrum rod fix, the sacroiliac joint screw is fixed, reconstruction plate, S
1Screw is in conjunction with GaLveston technology internal fixation etc.Sacrum rod has the ability of good anti-vertical shear, but the ability reversed of nonreactive almost; When adopting the sacroiliac joint screw fixedly, it easily causes caving in of nail tail loosening in the single-point contact of ilium face; Reconstruction plate has certain anti-vertical shear and anti-torsion ability, but its fixed range is limited; S
1Screw is that single rod inserts the ilium wing in conjunction with GaLveston technology internal fixation, has rod and transiliac fine motion.More than the biomechanical property of these factors influence internal fixation, and there are shortcomings such as specification requirement height, big, the strong insufficient rigidity of operation wound, nerve and blood vessel injury complication be more in various art formula.
[technology contents]
Technical problem to be solved in the utility model is to overcome the defective that exists in the prior art, designs, provides a kind of sacral screw in conjunction with rod--the technical scheme of plate inner fixing device.
Described sacral screw is in conjunction with rod--the plate inner fixing device, it is characterized in that comprising the sacral screw of rumpbone supporting rod and relative set, universal active screw, and become the obtuse angle to be connected with rumpbone supporting rod one end the connection nail-plate that band is followed closely the hole is set.
Described sacral screw is in conjunction with rod--and the plate inner fixing device is characterized in that the rumpbone supporting rod and to be connected nail-plate one-body molded.
Described sacral screw is in conjunction with rod--and the plate inner fixing device is characterized in that sacral screw passes through to follow closely--and rod connector and rumpbone supporting rod are connected and fixed.
Described sacral screw is in conjunction with rod--and the plate inner fixing device is characterized in that universal active screw is connected and fixed by tiger groove and corresponding nut and the rumpbone supporting rod of its upper end.
Described sacral screw is in conjunction with rod--the plate inner fixing device, it is characterized in that sacral screw by nut and nail--rod connector is connected, and nail--rod connector is connected and fixed by the through hole that is provided with and set bolt and rumpbone supporting rod.
Sacral screw is in conjunction with rod--the plate inner fixing device, and fixed form is scientific and reasonable, and fixed structure is more stable.This fixture is arranged along the principal stress trajectory of pelvis power conduction, plays similar arch bridge, constitutes new combinative structure with pelvis, makes pelvic ring more firm, meets biomechanical principle.Its strain, displacement, rigidity, ultimate load and normal pelvis there was no significant difference are better than existing internal fixation mode.And this apparatus structure is simple, easy to operate, safe and effective.
[description of drawings]
Fig. 1 is this utility model structural representation.
As shown in the figure, the 1-sacral screw, the 2-nut, 3-nail--rod connector, the 4-set bolt, 5-rumpbone supporting rod, the universal active screw of 6-, the 7-nut, 8-connects nail-plate, and 9-follows closely the hole.
[specific embodiment]
According to the biological structure of human pelvis, rumpbone supporting rod 5 be connected 8 one-tenth obtuse angle structures of nail-plate, connect the nail hole 9 that is provided with on the nail-plate 8 more than two or two, relative set sacral screw 1 and universal active screw 6 on the rumpbone supporting rod 5.With nail--rod connector 3 is connected, nail--rod connector 3 is connected and fixed with rumpbone supporting rod 1 by through hole and the set bolt 4 that is provided with sacral screw 1 by nut 2.Universal active screw 6 is connected and fixed with rumpbone supporting rod 5 by the tiger groove and the nut 7 of its upper end.
Claims (5)
1. sacral screw is in conjunction with rod--the plate inner fixing device, it is characterized in that comprising the sacral screw (1) of rumpbone supporting rod (5) and relative set, universal active screw (6), become the obtuse angle to be connected with rumpbone supporting rod (5) one ends the connection nail-plate (8) that band is followed closely hole (9) is set.
2. sacral screw as claimed in claim 1 is in conjunction with rod--and the plate inner fixing device is characterized in that rumpbone supporting rod (5) and to be connected nail-plate (8) one-body molded.
3. sacral screw as claimed in claim 1 is in conjunction with rod--and the plate inner fixing device is characterized in that sacral screw (1) is by nail--and rod connector (3) is connected and fixed with rumpbone supporting rod (5).
4. sacral screw as claimed in claim 1 is in conjunction with rod--and the plate inner fixing device is characterized in that universal active screw (6) is connected and fixed with rumpbone supporting rod (5) by the tiger groove and the corresponding nut (7) of its upper end.
5. sacral screw as claimed in claim 3 is in conjunction with rod--the plate inner fixing device, it is characterized in that rod connector (3) is connected and fixed with rumpbone supporting rod (5) by through hole and the set bolt (4) that is provided with sacral screw (1) with following closely--rod connector (3) is connected, and follows closely--by nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210706 CN2655820Y (en) | 2003-09-18 | 2003-09-18 | Sacrum screw combining rod-in plate fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210706 CN2655820Y (en) | 2003-09-18 | 2003-09-18 | Sacrum screw combining rod-in plate fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2655820Y true CN2655820Y (en) | 2004-11-17 |
Family
ID=34325531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210706 Expired - Fee Related CN2655820Y (en) | 2003-09-18 | 2003-09-18 | Sacrum screw combining rod-in plate fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2655820Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588764B (en) * | 2006-12-26 | 2011-11-23 | 华沙整形外科股份有限公司 | Sacral reconstruction fixation device |
| CN105662560A (en) * | 2014-11-20 | 2016-06-15 | 熊鹰 | Combined stent internal fixation apparatus |
| CN105943143A (en) * | 2016-06-30 | 2016-09-21 | 山东威高骨科材料股份有限公司 | Reduction and internal fixation device for injury of lumbar vertebra, sacrum and ilium pelvis |
| US10179014B1 (en) | 2012-06-01 | 2019-01-15 | Nuvasive, Inc. | Systems and methods for promoting sacroiliac joint fusion |
-
2003
- 2003-09-18 CN CN 03210706 patent/CN2655820Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588764B (en) * | 2006-12-26 | 2011-11-23 | 华沙整形外科股份有限公司 | Sacral reconstruction fixation device |
| US10179014B1 (en) | 2012-06-01 | 2019-01-15 | Nuvasive, Inc. | Systems and methods for promoting sacroiliac joint fusion |
| US11253302B2 (en) | 2012-06-01 | 2022-02-22 | Nuvasive, Inc. | Systems and methods for promoting sacroiliac joint fusion |
| CN105662560A (en) * | 2014-11-20 | 2016-06-15 | 熊鹰 | Combined stent internal fixation apparatus |
| CN105943143A (en) * | 2016-06-30 | 2016-09-21 | 山东威高骨科材料股份有限公司 | Reduction and internal fixation device for injury of lumbar vertebra, sacrum and ilium pelvis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041117 Termination date: 20091019 |