CN2393490Y - Inner fixator in front of cervical vertebra - Google Patents
Inner fixator in front of cervical vertebra Download PDFInfo
- Publication number
- CN2393490Y CN2393490Y CN 99253855 CN99253855U CN2393490Y CN 2393490 Y CN2393490 Y CN 2393490Y CN 99253855 CN99253855 CN 99253855 CN 99253855 U CN99253855 U CN 99253855U CN 2393490 Y CN2393490 Y CN 2393490Y
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- CN
- China
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- steel plate
- screw
- cervical vertebra
- fixing device
- cervical vertebrae
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- Expired - Fee Related
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Abstract
The utility model provides an internal fixing device of cervical vertebra anterior approach, which is composed of bolts, locking screws and a steel sheet, wherein, the steel sheet is provided with an upper and a lower inflated end parts, and a bridge part with constrictive middle; each end part is provided with two bolt holes and one screw hole, and two bolts are fixed in the vertebral body of a cervical vertebra through the bolt holes, and the tails of the bolts are compressed by the locking screws to make the bolts and the steel sheet rigidly connected. The bridge part is provided with a longitudinal slot, and the bolts can be fixed on a plurality of positions. The upper and lower ends of the surface of the steel sheet contacted the cervical vertebra are provided with a plurality of little protrusions to prevent the sliding between the system of the steel sheet and the cervical vertebra in the mounting process. The utility model is suitable to the situation of the intervertebral fusion after the operation of the cervical vertebra anterior approach.
Description
This utility model belongs to the skeleton fixed network, is specifically related to a kind of anterior cervical vertebrae inner fixing device.
After carrying out anterior cervical decompression operation, have employing to merge, but the less stable of injured vertebra sections from body bone piece support fixation, might take place the bone piece deviate from or bone grafting does not merge.Beginning at present to adopt the anterior plate fixation internal fixation strengthening the stability of operation sections clinically, is two kinds of anterior cervical fixation apparatuses commonly used clinically at present as the cervical steel plate internal fixation of the Ma Teshi company of the pivot Fa Mo company of the U.S. and Switzerland.But the steel plate of these fixed apparatus not too adapts to compatriots' cervical vertebra on crooked radian, and easily produces slip in the installation course of steel plate, makes the steel plate skew, influences fixed effect.
The purpose of this utility model is the stability that a kind of suitable compatriots' cervical vertebra is morphologic, can guarantee fixed-segment is provided, and prevents the anterior cervical vertebrae inner fixing device of the slip in the steel plate installation course.
The purpose of this utility model is achieved through the following technical solutions: comprise screw 12,13,14,16, lock screw 5,15 and steel plate, it is characterized in that described steel plate forms I-shape construction by upper and lower two end panel 1,3 of expanding to both sides and the bridge board 2 of middle constriction, the screw 12,13,14,16 that fixing cervical vertebra joint is arranged on two end panel of expanding 1,3 has the elongated slotted eye 8 and the fixing screw 7 of plant bone mass on the bridge board 2 of constriction.At the inner surface of steel plate that contacts with cervical vertebra several projectioies 4,9 are arranged.Constitute the structure that is rigidly connected by lock screw 5,15 between screw 12,13,14,16 on the plate of the upper and lower end of steel plate and steel plate.Crooked circular arc 10,11 is to a certain degree all arranged on steel plate horizontal and vertical.The scallop 6 that is lower than surface of steel plate is arranged on the elongated slotted eye 8.Have on the end panel 1,3 of expanding and be lower than the recess 17,18 that surface of steel plate cooperates with screw and lock screw.This device is made by the medical titanium alloy material, and the surface is with the non-oxidized substance bioceramic.
The utlity model has following useful effect:
1. utility model realizes bridge joint by the steel plate and the screw of this device between upper and lower cervical vertebral body, plays the purpose of the sick and wounded cervical vertebra sections of held stationary.Be a kind of sick and wounded cervical vertebra sections is had fixation and bone-graft fusion had the steel plate fixed system of facilitation.
2. elongated slotted eye by this device steel slab bridge portion and screw can be fixed the plant bone mass between the upper and lower cervical vertebra, prevent that plant bone mass from charging in canalis spinalis.
3. when steel plate system fixedly is placed in cervical vertebra, several small embossments on the steel plate embed upper and lower cervical vertebral body, effectively prevent the slip between steel plate and cervical vertebra, and can increase the gap between steel plate and the cervical vertebra after fixing cervical vertebral body, help growing into of blood vessel, promote the healing of skeleton.
Embodiment of the present utility model respectively schemes referring to following:
The front schematic view of Fig. 1 anterior cervical vertebrae inner fixing device, the form of demonstration steel plate, the relative position relation of screw and screw.
The A-A of Fig. 2 Fig. 1 shows vertical radian and several small embossments of steel plate to cutaway view, the connection angle relation between screw and steel plate.
Fig. 3 be the B-B of Fig. 1 to cutaway view, show the horizontal radian of steel plate.
As shown in Figure 1, 2, 3, a kind of anterior cervical vertebrae inner fixing device is disclosed.By screw 12,13,14,16, lock screw 5,9 and steel plate form, described steel plate is by last, following two end panel 1 of expanding to both sides, 3 and the bridge board 2 of middle constriction form I-shape constructions, fixedly two screws 12 of upper cervical spine joint are arranged on the end panel 1 of expanding, 13 and lock screw 12, a screw 5 of 13, on the end panel 3 of expanding, have and to fix two screws 14 of cervical vertebra joint down, 16 and lock screw 14, a screw 15 of 16, an elongated slotted eye 8 is arranged on the bridge board 2 of constriction, the scallop 6 that is lower than surface of steel plate is arranged on the elongated slotted eye 8, can be on a plurality of positions hold-down screw 7.Two pieces of screws are fixed in the cervical vertebral body by screw hole, by lock screw housing screw afterbody, make between screw and steel plate to be rigidly connected.Have on the end panel 1,3 of expanding and be lower than the recess 17,18 that surface of steel plate cooperates with screw and lock screw.Crooked circular arc 10,11 is to a certain degree all arranged on steel plate horizontal and vertical, several projectioies 4,9 are arranged, prevent the slip between installation process light plate system and cervical vertebra at the upper and lower end of the surface of steel plate that contacts with cervical vertebra.This utility model is made by the medical titanium alloy material, and the surface is with the non-oxidized substance bioceramic.
Claims (7)
1. anterior cervical vertebrae inner fixing device, comprise screw (12,13,14,16), lock screw (5,15) and steel plate, it is characterized in that described steel plate forms I-shape construction by the bridge board (2) of upper and lower two end panel of expanding to both sides (1,3) and middle constriction, the screw (12,13,14,16) that fixing cervical vertebra joint is arranged on two end panel of expanding (1,3) has elongated slotted eye (8) and the fixing screw of plant bone mass (7) on the bridge board (2) of constriction.
2. anterior cervical vertebrae inner fixing device according to claim 1 is characterized in that at the inner surface of steel plate that contacts with cervical vertebra several projectioies (4,9) being arranged.
3. anterior cervical vertebrae inner fixing device according to claim 1 and 2 is characterized in that constituting the structure that is rigidly connected by lock screw (5,15) between screw (12,13,14,16) on the upper and lower end of the steel plate plate (1,3) and steel plate.
4. anterior cervical vertebrae inner fixing device according to claim 3 is characterized in that all having crooked circular arc (10,11) to a certain degree on steel plate horizontal and vertical.
5. anterior cervical vertebrae inner fixing device according to claim 1 is characterized in that the scallop (6) that is lower than surface of steel plate is arranged on the elongated slotted eye (8).
6. according to claim 1 or 3 described anterior cervical vertebrae inner fixing devices, the recess (17,18) that is lower than surface of steel plate and cooperates with screw and lock screw is arranged on the end panel (1,3) that it is characterized in that expanding.
7. anterior cervical vertebrae inner fixing device according to claim 1 is characterized in that being made by the medical titanium alloy material, and the surface is with the non-oxidized substance bioceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99253855 CN2393490Y (en) | 1999-11-10 | 1999-11-10 | Inner fixator in front of cervical vertebra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99253855 CN2393490Y (en) | 1999-11-10 | 1999-11-10 | Inner fixator in front of cervical vertebra |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2393490Y true CN2393490Y (en) | 2000-08-30 |
Family
ID=34037659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99253855 Expired - Fee Related CN2393490Y (en) | 1999-11-10 | 1999-11-10 | Inner fixator in front of cervical vertebra |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2393490Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293849C (en) * | 2004-09-14 | 2007-01-10 | 李郁松 | Physiological internal fixer for upper cervical vertebra |
| CN1319494C (en) * | 2004-04-12 | 2007-06-06 | 张立 | Front path implanted upper cervical vertebra internal fixing device |
| CN100349552C (en) * | 2005-10-19 | 2007-11-21 | 中国人民解放军第三军医大学第一附属医院 | Front self locking fixing pin plate for lumbar vertebra |
| CN101095626B (en) * | 2006-06-29 | 2010-07-07 | 李郁松 | Anterior cervical vertebrae single corpus vertebrae Subtotal ablation physiological inner fixing device |
| CN101547657B (en) * | 2006-07-31 | 2011-07-27 | 整形外科有限公司 | Cervical plate system having an insertable rotating element |
| CN104352272A (en) * | 2014-11-14 | 2015-02-18 | 广西骨伤医院 | Anterior cervical locking and pressurizing steel plate |
| CN105147381A (en) * | 2015-09-07 | 2015-12-16 | 庄青山 | Anterior cervical bridging plate fixing system |
| CN105342680A (en) * | 2015-10-13 | 2016-02-24 | 广州聚生生物科技有限公司 | Anterior cervical interbody steel plate cage integrated internal fixing system |
-
1999
- 1999-11-10 CN CN 99253855 patent/CN2393490Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319494C (en) * | 2004-04-12 | 2007-06-06 | 张立 | Front path implanted upper cervical vertebra internal fixing device |
| CN1293849C (en) * | 2004-09-14 | 2007-01-10 | 李郁松 | Physiological internal fixer for upper cervical vertebra |
| CN100349552C (en) * | 2005-10-19 | 2007-11-21 | 中国人民解放军第三军医大学第一附属医院 | Front self locking fixing pin plate for lumbar vertebra |
| CN101095626B (en) * | 2006-06-29 | 2010-07-07 | 李郁松 | Anterior cervical vertebrae single corpus vertebrae Subtotal ablation physiological inner fixing device |
| CN101547657B (en) * | 2006-07-31 | 2011-07-27 | 整形外科有限公司 | Cervical plate system having an insertable rotating element |
| CN104352272A (en) * | 2014-11-14 | 2015-02-18 | 广西骨伤医院 | Anterior cervical locking and pressurizing steel plate |
| CN105147381A (en) * | 2015-09-07 | 2015-12-16 | 庄青山 | Anterior cervical bridging plate fixing system |
| CN105342680A (en) * | 2015-10-13 | 2016-02-24 | 广州聚生生物科技有限公司 | Anterior cervical interbody steel plate cage integrated internal fixing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |