CN201055419Y - Spinal column waist 5 sacrum 1 front steel plate screw internal fixation device - Google Patents
Spinal column waist 5 sacrum 1 front steel plate screw internal fixation device Download PDFInfo
- Publication number
- CN201055419Y CN201055419Y CNU2007201247793U CN200720124779U CN201055419Y CN 201055419 Y CN201055419 Y CN 201055419Y CN U2007201247793 U CNU2007201247793 U CN U2007201247793U CN 200720124779 U CN200720124779 U CN 200720124779U CN 201055419 Y CN201055419 Y CN 201055419Y
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- China
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- steel plate
- internal
- hold
- pressure sheet
- sheet
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- Expired - Fee Related
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Abstract
The utility model provides an internal fixing device with steel plate and bolt for the fifth lumbar vertebra and the first sacrum of the spine by anterior approach and relates to medical instrument. The technical proposal is as follows that the bolt head of the two fixing bolts 2 are respectively arranged in two holes in the middle of the superior side of the steel plate 1, a squash sheet on the superior side 3 presses on the end surface of the two fixing bolts 2, and a countersunk locking bolt 4 gets through an internal strip-shaped slotted hole in the middle of the squash sheet on the superior side 3 and is engaged with an internal hole thread on the superior side of the steel plate 1; in addition, the bolt heads of the two fixing bolts 2 are respectively arranged in the two holes in the middle of the tail side of the steel plate 1, a squash sheet on the caudal side 5 presses on the end surfaces of the two fixing bolts 2, and the countersunk locking bolt 4 gets through an internal round hole in the middle of the squash sheet on the caudal side 5 and is engaged with the internal hole thread on the caudal side of the steel plate 1. The utility model is characterized in that the device has simple and compact structure and easy manufacture and the client can finish cleaning of focus (or bone transplanting between centrums) and planting of the internal fixing device for one time by anterior approach; the device has reliable strength of biomechanicals, easy operation, wide clinic indication, etc.
Description
Technical field
This utility model relates to medical apparatus and instruments, especially a kind of preceding road inner fixing device that is used for lumbar spine 5 sacrums 1 sections.
Background technology
The tuberculosis of lumbar spine 5 sacrums 1 sections, tumor, slippage, fracture, vertebral space infection etc. need internal fixation, lumbar spine 5 sacrums 1 sections veutro still lacks ideal inner fixing device at home, operative treatment for this position, the overwhelming majority adds the way of escape by simple posterior approach or preceding road focal cleaning to implant inner fixing device, and there are deficiencies such as operating time is long, wound is heavy, patient economy burden is overweight in above-mentioned modus operandi.Has two waist, 5 sacrums, 1 sections inner fixing device at lumbar spine 5 sacrums 1 sections veutro abroad, adopt both waist 5 sacrums, 1 vertebra preceding road triangle steel plate and the preceding road of waist sacral PACH steel plate, there are deficiencies such as biomechanical strength is not enough, operation is convenient inadequately in above-mentioned two inner fixing device.
Summary of the invention
It is a kind of simple in structure that order of the present utility model provides, and designs according to waist 5 sacrums 1 sections veutro anatomical features, adopts the lock-screw lock cover, and tabletting is pushed down hold-down screw, forms integrally-built inner fixing device.
Technical scheme that the purpose of this utility model adopts is, include the wide steel plate of the narrow tail side of a side that is circular-arc, the nail point has the nail body of self tapping groove to have the ailhead end face of fast pitch thread that the hold-down screw in interior six square groove holes is arranged, a side pressure sheet of rectangular slotted eye in elongated centre has, the countersunk head lock-screw, elongated centre is made up of the tail side pressure sheet of interior circular hole, the ailhead of its two hold-down screws installs respectively in middle two holes of a side of steel plate, side pressure sheet is pressed on two hold-down screw end faces, the countersunk head lock-screw passes the inner hole thread engagement of middle interior rectangular slotted eye of a side pressure sheet and steel plate head side, the ailhead of other two hold-down screws installs respectively in middle two holes of the tail side of steel plate, tail side pressure sheet is pressed on other two hold-down screw end faces, and the countersunk head lock-screw passes the inner hole thread engagement of middle interior circular hole of tail side pressure sheet and steel plate tail side.
A side of this utility model employing steel plate is narrow, the tail side is wide, and at sagittal plane and coronalplane certain radian is arranged all; But hold-down screw cephalad, tail inclination when implanting is oblique, and can be cohesion to the midline, and the implantation of screw is convenient, flexibly, again the stability of the internal fixation system of Bao Zhenging; The tabletting of side is that the slip by cephalad and tail side realizes or remove retaining, and the tabletting of tail side is to finish or remove the retaining effect by revolving to turn 90 degrees, and two tablettings all are fixed on the steel plate by lock-screw.After adopting inner fixing device to install, becoming an organic whole, both met the anatomical features of lumbosacral section, satisfy the biomechanics requirement at this position again, is the ideal inner fixing device in the lumbar spine preceding road of 5 sacrums, 1 sections.
The utlity model has simple and compact for structurely, make easily, make the patient finish focal cleaning (or interbody bone graft), the implantation of inner fixing device by anterior approach is disposable; Biomechanical strength is reliable, and is easy to operate; Characteristics such as clinical indication is wide.
Description of drawings
Further specify this utility model below in conjunction with accompanying drawing.
Fig. 1 is this utility model structural representation;
Fig. 2 is that Figure 1A-A is to the TV structure sketch map;
Fig. 3 is that Figure 1B-B is to the TV structure sketch map.
Among the figure: 3-side pressure sheet of 1-steel plate 2-hold-down screw 4-countersunk head lock-screw 5-tail side pressure sheet
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, include the wide steel plate 1 of the narrow tail side of a side that is circular-arc, the nail point has the nail body of self tapping groove to have the ailhead end face of fast pitch thread that the hold-down screw 2 in interior six square groove holes is arranged, a side pressure sheet 3 of rectangular slotted eye in elongated centre has, countersunk head lock-screw 4, elongated centre is made up of the tail side pressure sheet 5 of interior circular hole, the ailhead of its two hold-down screws 2 installs respectively in middle two holes of a side of steel plate 1, side pressure sheet 3 is pressed on two hold-down screw 2 end faces, countersunk head lock-screw 4 passes the inner hole thread engagement of a side pressure sheet 3 middle interior rectangular slotted eyes and 1 side of steel plate, the ailhead of other two hold-down screws 2 installs respectively in middle two holes of the tail side of steel plate 1, tail side pressure sheet 5 is pressed on other two hold-down screw 2 end faces, and countersunk head lock-screw 4 passes the inner hole thread engagement of tail side pressure sheet 5 middle interior circular holes and steel plate 1 tail side.
Claims (1)
1. lumbar spine 5 sacrums 1 anterior plate multiple screws device, include the wide steel plate (1) of the narrow tail side of a side that is circular-arc, the nail point has the nail body of self tapping groove to have the ailhead end face of fast pitch thread that the hold-down screw (2) in interior six square groove holes is arranged, a side pressure sheet (3) of rectangular slotted eye in elongated centre has, countersunk head lock-screw (4), elongated centre has the tail side pressure sheet (5) of interior circular hole to form, the ailhead that it is characterized in that two hold-down screws (2) installs respectively in middle two holes of a side of steel plate (1), side pressure sheet (3) is pressed on two hold-down screws (2) end face, countersunk head lock-screw (4) passes the inner hole thread engagement of a middle interior rectangular slotted eye of a side pressure sheet (3) and steel plate (a 1) side, the ailhead of other two hold-down screws (2) installs respectively in middle two holes of the tail side of steel plate (1), tail side pressure sheet (5) is pressed on other two hold-down screws (2) end face, and countersunk head lock-screw (4) passes the inner hole thread engagement of middle interior circular hole of tail side pressure sheet (5) and steel plate (1) tail side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201247793U CN201055419Y (en) | 2007-07-20 | 2007-07-20 | Spinal column waist 5 sacrum 1 front steel plate screw internal fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201247793U CN201055419Y (en) | 2007-07-20 | 2007-07-20 | Spinal column waist 5 sacrum 1 front steel plate screw internal fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201055419Y true CN201055419Y (en) | 2008-05-07 |
Family
ID=39424262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201247793U Expired - Fee Related CN201055419Y (en) | 2007-07-20 | 2007-07-20 | Spinal column waist 5 sacrum 1 front steel plate screw internal fixation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201055419Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD779065S1 (en) | 2014-10-08 | 2017-02-14 | Nuvasive, Inc. | Anterior cervical bone plate |
| CN113813033A (en) * | 2021-09-24 | 2021-12-21 | 浙江省立同德医院 | Angle-adjustable self-locking type lumbosacral anterior channel vertebral arch fixing nail plate fixing method and system |
-
2007
- 2007-07-20 CN CNU2007201247793U patent/CN201055419Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD779065S1 (en) | 2014-10-08 | 2017-02-14 | Nuvasive, Inc. | Anterior cervical bone plate |
| USD798455S1 (en) | 2014-10-08 | 2017-09-26 | Nuvasive, Inc. | Anterior cervical bone plate |
| CN113813033A (en) * | 2021-09-24 | 2021-12-21 | 浙江省立同德医院 | Angle-adjustable self-locking type lumbosacral anterior channel vertebral arch fixing nail plate fixing method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20160720 |