CN103040511B - Self-locking type anterior cervical vertebra plate - Google Patents
Self-locking type anterior cervical vertebra plate Download PDFInfo
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- CN103040511B CN103040511B CN201210577276.7A CN201210577276A CN103040511B CN 103040511 B CN103040511 B CN 103040511B CN 201210577276 A CN201210577276 A CN 201210577276A CN 103040511 B CN103040511 B CN 103040511B
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Abstract
The invention discloses a self-locking type anterior cervical vertebra plate quite convenient to use. The self-locking type anterior cervical vertebra plate comprises a steel plate body, wherein two pairs of cervical vertebra screw holes are respectively arranged on two side portions of the steel plate body, a mounting hole with a jump spring sleeve is arranged on the steel plate body between each pair of cervical vertebra screw holes, the top of each jump spring sleeve is fixedly connected with a jump spring retainer ring, a jump spring is mounted in each jump spring sleeve on the inner side of the jump spring retainer ring, annular grooves for holding the jump springs and the jump spring retainer rings are respectively arranged on the outer walls of the tops of the mounting holes, and each annular groove is mutually jointly communicated with the cervical vertebra screw holes on two sides thereof. Accordingly, two claw arms of the jump springs can respectively extend into the cervical vertebra screw holes on two sides from the annular grooves, and the claw arms extending to the cervical vertebra screw holes can shield the outer sides of cervical vertebra screw nuts in the cervical vertebra screw holes. Gaps are reserved among the two claw arms of the jump springs and the outer walls of the jump spring sleeves. An interlocking structure is arranged between the mounting holes and the jump spring sleeves and capable of interlocking the same.
Description
Technical field
The present invention relates to medical instruments field, the anterior cervical plates used when particularly relating to a kind of internal fixation operation treatment cervical spondylosis.
Background technology
Heredity, abnormal development, wound, chronic stress and tumor and Other diseases can cause the pathological condition of spinal column, it reduce the pliability of spinal column, limit the range of movement of spinal column.Adopting surgery internal fixation operation to treat above-mentioned pathological condition is Therapeutic Method medically conventional at present.Anterior cervical plates is mainly used in internal fixation operation treatment cervical disc degenerative disorders, cervical spondylolisthesis, spinal canal stenosis, Cervical vertebral tumor, the failure of cervical vertebra joint fusion, cervical vertebra pseudoarticulation formation, cervical spine malformation etc.Adopt anterior cervical plates internal fixtion to be the good method that anterior cervical operation stablizes cervical vertebra, it can fixedly secure plant bone mass, promotes to merge, and effectively maintains the natural physiological bending of pathological changes cervical vertebra, recovers the normal physiological function of cervical vertebra.Traditional anterior cervical plates, its structure comprises: steel plate body, both sides on steel plate body are respectively arranged with a pair cervical vertebra screw hole, steel plate body between often pair of cervical vertebra screw hole is provided with rotatable block, block is provided with flange, and the flange on each block all can be blocked in the outside that Post operation is arranged at the cervical vertebra screw head of a nail in two cervical vertebra screw holes of corresponding side.The using method of the anterior cervical plates of said structure is: cervical vertebra screw is installed on required disease sites through after cervical vertebra screw hole, after cervical vertebra screw installs, correspondingly instrument is used to rotate block, make the flange on block be blocked in the outside of the cervical vertebra screw head of a nail, be used for preventing cervical vertebra screw from occurring loosen and exit from cervical vertebra screw hole.The shortcoming of the anterior cervical plates of said structure is: also must rotate block after screwing cervical vertebra screw in operation again could lock cervical vertebra screw, more loaded down with trivial details during operation.
Summary of the invention
The technical issues that need to address of the present invention are: provide a kind of self-locking anterior cervical plates very easy to use.
For solving the problem, the technical solution used in the present invention is: self-locking anterior cervical plates, comprise: steel plate body, position, both sides on steel plate body is respectively arranged with a pair in order to install the cervical vertebra screw hole of cervical vertebra screw, steel plate body between often pair of cervical vertebra screw hole is respectively arranged with an installing hole, a jump ring cover is separately installed with in each installing hole, the top of each jump ring cover is fixedly connected with jump ring back-up ring, jump ring is positioned at inside jump ring back-up ring, and be sleeved on jump ring and put, the top exterior walls of each installing hole is respectively arranged with the annular groove holding jump ring and jump ring back-up ring, each annular groove crosses through with the cervical vertebra screw hole being positioned at its both sides mutually, two of jump ring claw arms are made to stretch in the cervical vertebra screw hole of both sides from annular groove respectively, and the claw arm stretched in cervical vertebra screw hole can block in the outside being installed on the cervical vertebra screw head of a nail in cervical vertebra screw hole, two claw arms of jump ring and jump ring overlap between outer wall and are provided with gap, make to be installed in the process of cervical vertebra screw hole at cervical vertebra screw, two claw arms of jump ring can be dodged over there toward jump ring cover and can not hinder moving ahead of the cervical vertebra screw head of a nail, until the cervical vertebra screw head of a nail squeezes toward side dial claw arm after crossing claw arm, claw arm elastic reset block in the outside of the cervical vertebra screw head of a nail again, also being provided with between installing hole and jump ring overlap can by the latching structure of both mutual clampings.
Further, aforesaid self-locking anterior cervical plates, wherein, the concrete form of described latching structure is: in the bottom outer wall of installing hole, be symmetrically arranged with two clamp bar slots, the sidewall of jump ring cover is symmetrically arranged with two microscler through holes of transverse direction, jump ring cover sidewall below microscler through hole is provided with the vertical openings cutting off this place's sidewall, the jump ring cover sidewall being positioned at vertical openings both sides is made to form two card bases, when jump ring cover is installed on after in installing hole, outside spreading card base, in the draw-in groove that card base is just in time snapped in installing hole bottom outer wall, thus jump ring is overlapped kayser in installing hole.
Further, aforesaid self-locking anterior cervical plates, wherein, the center position of described mounting hole site between often pair of cervical vertebra screw hole.
Further, aforesaid self-locking anterior cervical plates, wherein, jump ring back-up ring is provided with the circular arc cutaway dodging the cervical vertebra screw head of a nail.
Beneficial effect of the present invention: cervical vertebra screw is installed in the process of cervical vertebra screw hole, two claw arms of jump ring can be dodged over there toward jump ring cover and can not hinder moving ahead of the cervical vertebra screw head of a nail, until the cervical vertebra screw head of a nail squeezes toward side dial claw arm after crossing claw arm, claw arm elastic reset block in the outside of the cervical vertebra screw head of a nail again, thus play and effectively prevent cervical vertebra screw loosening and the effect exited, whole operating process is very convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of self-locking anterior cervical plates light plate body of the present invention.
Fig. 2 is the cross-sectional configuration schematic diagram of vertebral screw hole and installing hole on steel plate body.
Fig. 3 is the structural representation of jump ring cover in self-locking anterior cervical plates of the present invention.
Fig. 4 is the structural representation that Fig. 3 overlooks direction.
Fig. 5 is the structural representation that Fig. 3 looks up direction.
Fig. 6 is the structural representation of jump ring in self-locking anterior cervical plates of the present invention.
Fig. 7 is the structural representation of self-locking anterior cervical plates of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and optimum embodiment, the present invention is described in further detail.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Fig. 7, self-locking anterior cervical plates, comprise: steel plate body 1, position, both sides on steel plate body 1 is respectively arranged with a pair in order to install the cervical vertebra screw hole 2 of cervical vertebra screw, the steel plate body at the center position place between often pair of cervical vertebra screw hole 2 is respectively arranged with an installing hole 3, a jump ring cover 4 is separately installed with in each installing hole 3, the top of each jump ring cover 4 is fixedly connected with jump ring back-up ring 5, jump ring 6 is positioned at inside jump ring back-up ring 5, and be sleeved on jump ring cover 4, the top exterior walls of each installing hole 3 is respectively arranged with the annular groove 7 holding jump ring 6 and jump ring back-up ring 5, each annular groove 7 crosses through with the cervical vertebra screw hole 2 being positioned at its both sides mutually, two of jump ring 6 claw arms 61 are made to stretch in the cervical vertebra screw hole 2 of both sides from annular groove 7 respectively, and the claw arm 61 stretched in cervical vertebra screw hole 2 can block in the outside being installed on the cervical vertebra screw head of a nail in cervical vertebra screw hole 2, two claw arms 61 of jump ring 6 and jump ring overlap between 4 outer walls and are provided with gap, make to be installed in the process of cervical vertebra screw hole 2 at cervical vertebra screw, two claw arms 61 of jump ring 6 can be dodged over there toward jump ring cover 4 and can not hinder moving ahead of the cervical vertebra screw head of a nail, until the cervical vertebra screw head of a nail squeezes toward side dial claw arm 61 after crossing claw arm 61, claw arm 61 elastic reset block in the outside of the cervical vertebra screw head of a nail again, installing hole 3 and jump ring overlap that be also provided with between 4 can by the latching structure of both mutual clampings, the concrete form of described latching structure is: in the bottom outer wall of installing hole 3, be symmetrically arranged with two clamp bar slots 31, the sidewall of jump ring cover 4 is symmetrically arranged with two microscler through holes 41 of transverse direction, jump ring below microscler through hole 41 overlaps the vertical openings 42 4 sidewalls being provided with and cutting off this place's sidewall, the jump ring cover sidewall being positioned at vertical openings 42 both sides is made to form two card bases 43, when jump ring cover 4 is installed on after in installing hole 3, outside spreading card base 43, in the draw-in groove 31 that card base 43 is just in time snapped in installing hole 3 bottom outer wall, thus jump ring is overlapped 4 kaysers in installing hole 3.In the present embodiment, jump ring back-up ring 5 is provided with the circular arc cutaway 51 dodging the cervical vertebra screw head of a nail, so that the installation of cervical vertebra screw.
Beneficial effect of the present invention: cervical vertebra screw is installed in the process of cervical vertebra screw hole 2, two claw arms 61 of jump ring 6 can be dodged over there toward jump ring cover 4 and can not hinder moving ahead of the cervical vertebra screw head of a nail, until the cervical vertebra screw head of a nail squeezes toward side dial claw arm 61 after crossing claw arm 61, claw arm 61 elastic reset block in the outside of the cervical vertebra screw head of a nail again, thus play the effect effectively preventing cervical vertebra screw from exiting, whole operating process is very convenient.
Claims (3)
1. self-locking anterior cervical plates, comprise: steel plate body, position, both sides on steel plate body is respectively arranged with a pair in order to install the cervical vertebra screw hole of cervical vertebra screw, steel plate body between often pair of cervical vertebra screw hole is respectively arranged with an installing hole, it is characterized in that: in each installing hole, be separately installed with a jump ring cover, the top of each jump ring cover is fixedly connected with jump ring back-up ring, jump ring is positioned at inside jump ring back-up ring, and be sleeved on jump ring and put, the top exterior walls of each installing hole is respectively arranged with the annular groove holding jump ring and jump ring back-up ring, each annular groove crosses through with the cervical vertebra screw hole being positioned at its both sides mutually, two of jump ring claw arms are made to stretch in the cervical vertebra screw hole of both sides from annular groove respectively, and the claw arm stretched in cervical vertebra screw hole can block in the outside being installed on the cervical vertebra screw head of a nail in cervical vertebra screw hole, two claw arms of jump ring and jump ring overlap between outer wall and are provided with gap, make to be installed in the process of cervical vertebra screw hole at cervical vertebra screw, two claw arms of jump ring can be dodged over there toward jump ring cover and can not hinder moving ahead of the cervical vertebra screw head of a nail, until the cervical vertebra screw head of a nail squeezes toward side dial claw arm after crossing claw arm, claw arm elastic reset block in the outside of the cervical vertebra screw head of a nail again, also being provided with between installing hole and jump ring overlap can by the latching structure of both mutual clampings, the concrete form of described latching structure is: in the bottom outer wall of installing hole, be symmetrically arranged with two clamp bar slots, the sidewall of jump ring cover is symmetrically arranged with two microscler through holes of transverse direction, jump ring cover sidewall below microscler through hole is provided with the vertical openings cutting off this place's sidewall, the jump ring cover sidewall being positioned at vertical openings both sides is made to form two card bases, when jump ring cover is installed on after in installing hole, outside spreading card base, in the draw-in groove that card base is just in time snapped in installing hole bottom outer wall, thus jump ring is overlapped kayser in installing hole.
2. according to the self-locking anterior cervical plates described in claim 1, it is characterized in that: the center position of described mounting hole site between often pair of cervical vertebra screw hole.
3. the self-locking anterior cervical plates according to claim 1 or 2, is characterized in that: jump ring back-up ring is provided with the circular arc cutaway dodging the cervical vertebra screw head of a nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577276.7A CN103040511B (en) | 2012-12-27 | 2012-12-27 | Self-locking type anterior cervical vertebra plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577276.7A CN103040511B (en) | 2012-12-27 | 2012-12-27 | Self-locking type anterior cervical vertebra plate |
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| Publication Number | Publication Date |
|---|---|
| CN103040511A CN103040511A (en) | 2013-04-17 |
| CN103040511B true CN103040511B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210577276.7A Active CN103040511B (en) | 2012-12-27 | 2012-12-27 | Self-locking type anterior cervical vertebra plate |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108113742A (en) * | 2018-02-09 | 2018-06-05 | 北京市富乐科技开发有限公司 | Anterior cervical plates |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1006913A4 (en) * | 1997-02-11 | 2001-10-31 | Michelson Gary K | Anterior cervical plating system, instrumentation, and method of installation |
| CN1366866A (en) * | 2002-01-17 | 2002-09-04 | 蒋谊康 | Cervical front-side sheet steel bone screw anti-releasing device |
| CN1575780A (en) * | 2003-07-22 | 2005-02-09 | U&I公司 | Cervical spine fixator and screwdriver used therefor |
| CN201295280Y (en) * | 2008-11-10 | 2009-08-26 | 常州奥斯迈医疗器械有限公司 | Anterior locking cervical plate system |
| CN203089334U (en) * | 2012-12-27 | 2013-07-31 | 苏州欣荣博尔特医疗器械有限公司 | Self-lock type cervical spine anterior plate |
-
2012
- 2012-12-27 CN CN201210577276.7A patent/CN103040511B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1006913A4 (en) * | 1997-02-11 | 2001-10-31 | Michelson Gary K | Anterior cervical plating system, instrumentation, and method of installation |
| CN1366866A (en) * | 2002-01-17 | 2002-09-04 | 蒋谊康 | Cervical front-side sheet steel bone screw anti-releasing device |
| CN1575780A (en) * | 2003-07-22 | 2005-02-09 | U&I公司 | Cervical spine fixator and screwdriver used therefor |
| CN201295280Y (en) * | 2008-11-10 | 2009-08-26 | 常州奥斯迈医疗器械有限公司 | Anterior locking cervical plate system |
| CN203089334U (en) * | 2012-12-27 | 2013-07-31 | 苏州欣荣博尔特医疗器械有限公司 | Self-lock type cervical spine anterior plate |
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| CN103040511A (en) | 2013-04-17 |
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