CN103040511A - Self-locking type anterior cervical vertebra plate - Google Patents
Self-locking type anterior cervical vertebra plate Download PDFInfo
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- CN103040511A CN103040511A CN2012105772767A CN201210577276A CN103040511A CN 103040511 A CN103040511 A CN 103040511A CN 2012105772767 A CN2012105772767 A CN 2012105772767A CN 201210577276 A CN201210577276 A CN 201210577276A CN 103040511 A CN103040511 A CN 103040511A
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- cervical vertebra
- jump ring
- vertebra screw
- jump
- cervical
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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, employed anterior cervical plates when relating in particular 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, and the pliability that this has reduced spinal column has limited the range of movement of spinal column.Adopting the surgery internal fixation operation that above-mentioned pathological condition is treated is the Therapeutic Method of medically commonly using at present.Anterior cervical plates is mainly used in internal fixation operation treatment cervical region intervertebral disc degeneration disease, cervical spondylolisthesis, spinal canal stenosis, cervical vertebra tumor, the failure of cervical vertebra joint fusion, cervical vertebra pseudoarticulation formation, cervical spine malformation etc.Adopting in the anterior cervical plates fixedly is the preferably method that anterior cervical operation is stablized cervical vertebra, and it can fixedly secure plant bone mass, promotes to merge, and effectively keeps the natural physiological bending of pathological changes cervical vertebra, recovers the normal physiological function of cervical vertebra.Traditional anterior cervical plates, its structure comprises: the steel plate body, both sides on the steel plate body are respectively arranged with a pair of cervical vertebra screw hole, be provided with rotatable block on the steel plate body between the every pair of cervical vertebra screw hole, be provided with flange on the block, the flange on each block all can be blocked in the outside of the cervical vertebra screw head of a nail in two cervical vertebra screw holes that are arranged at a corresponding side after the operation.The using method of the anterior cervical plates of said structure is: be installed on needed disease sites after the cervical vertebra screw is passed the cervical vertebra screw hole, after the cervical vertebra screw installs, use correspondingly instrument rotation block, make flange on the block be blocked in the outside of the cervical vertebra screw head of a nail, be used for preventing that the cervical vertebra screw from occuring loosening and withdraw from from the cervical vertebra screw hole.The shortcoming of the anterior cervical plates of said structure is: screw in the operation also must rotate again block behind the cervical vertebra screw could be with the locking of 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: a kind of self-locking anterior cervical plates very easy to use is provided.
For addressing the above problem, the technical solution used in the present invention is: the self-locking anterior cervical plates, comprise: the steel plate body, position, both sides on the steel plate body is respectively arranged with a pair of in order to the cervical vertebra screw hole of cervical vertebra screw to be installed, be respectively arranged with an installing hole on the steel plate body between the every pair of cervical vertebra screw hole, in each installing hole, be separately installed with a jump ring cover, the top of each jump ring cover is fixedly connected with the jump ring back-up ring, it is inboard that jump ring is positioned at the jump ring back-up ring, and be sleeved on jump ring and put, top exterior walls at each installing hole is respectively arranged with the annular groove that holds jump ring and jump ring back-up ring, the perforation that mutually crosses of each annular groove and the cervical vertebra screw hole that is positioned at its both sides, so that two claw arms of jump ring can stretch into respectively in the cervical vertebra screw hole of both sides, and stretch into the outside that the claw arm in the cervical vertebra screw hole can block the cervical vertebra screw head of a nail in being installed on the cervical vertebra screw hole from annular groove; Be provided with the gap between two claw arms of jump ring and the jump ring cover outer wall, so that be installed in the process of cervical vertebra screw hole at the cervical vertebra screw, two claw arms of jump ring can be dodged over there and can not hinder moving ahead of the cervical vertebra screw head of a nail toward the jump rings cover, until after the cervical vertebra screw head of a nail squeeze to dial the claw arm and cross the claw arm toward the next door, the claw arm is elastic reset and block the outside at the cervical vertebra screw head of a nail again; Also being provided with between installing hole and jump ring cover can be with the latching structure of both mutual clampings.
Further, aforesaid self-locking anterior cervical plates, wherein, the concrete form of described latching structure is: the bottom outer wall at installing hole is symmetrically arranged with two clamp bar slots, sidewall at the jump ring cover is symmetrically arranged with two horizontal microscler through holes, jump ring cover sidewall below microscler through hole is provided with the vertical openings of cutting off this place's sidewall, form two card bases so that be positioned at the jump ring cover sidewall on vertical openings both sides, after the jump ring cover is installed in the installing hole, outside spreading card base, card base is just in time snapped in the draw-in groove on the installing hole bottom outer wall, thereby 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 every pair of cervical vertebra screw hole.
Further, aforesaid self-locking anterior cervical plates wherein, is provided with the circular arc cutaway of dodging the cervical vertebra screw head of a nail on the jump ring back-up ring.
Beneficial effect of the present invention: the cervical vertebra screw is installed in the process of cervical vertebra screw hole, two claw arms of jump ring can be dodged over there and can not hinder moving ahead of the cervical vertebra screw head of a nail toward the jump rings cover, until the cervical vertebra screw head of a nail is toward the crowded group claw arm in next door and after crossing the claw arm, the claw arm is elastic reset and block the outside at the cervical vertebra screw head of a nail again, effectively prevent cervical vertebra screw loosening and the effect of withdrawing from thereby play, whole operating process is very convenient.
Description of drawings
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 sketch map of vertebral screw hole and installing hole on the steel plate body.
Fig. 3 is the structural representation of jump ring cover in the 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 the 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.
The specific embodiment
Below in conjunction with accompanying drawing and optimum embodiment the present invention is described in further detail.
Such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, the self-locking anterior cervical plates, comprise: steel plate body 1, position, both sides on the steel plate body 1 is respectively arranged with a pair of in order to the cervical vertebra screw hole 2 of cervical vertebra screw to be installed, be respectively arranged with an installing hole 3 on the steel plate body at the center position place between the every pair of cervical vertebra screw hole 2, in each installing hole 3, be separately installed with a jump ring cover 4, the top of each jump ring cover 4 is fixedly connected with jump ring back-up ring 5, jump ring 6 is positioned at jump ring back-up ring 5 inboards, and be sleeved on the jump ring cover 4, top exterior walls at each installing hole 3 is respectively arranged with the annular groove 7 that holds jump ring 6 and jump ring back-up ring 5, the perforation that mutually crosses of each annular groove 7 and the cervical vertebra screw hole 2 that is positioned at its both sides, so that two claw arms 61 of jump ring 6 can stretch into respectively in the cervical vertebra screw hole 2 of both sides, and stretch into the outside that the claw arm 61 in the cervical vertebra screw hole 2 can block the cervical vertebra screw head of a nail in being installed on cervical vertebra screw hole 2 from annular groove 7; Two claw arms 61 of jump ring 6 and jump ring overlap between 4 outer walls and are provided with the gap, so that be installed in the process of cervical vertebra screw hole 2 at the cervical vertebra screw, two claw arms 61 of jump ring 6 can be dodged over there and can not hinder moving ahead of the cervical vertebra screw head of a nail toward jump ring cover 4, until after the cervical vertebra screw head of a nail squeeze to dial claw arm 61 and cross claw arm 61 toward the next door, claw arm 61 is elastic reset and block the outside at the cervical vertebra screw head of a nail again; Also being provided with between installing hole 3 and the jump ring cover 4 can be with the latching structure of both mutual clampings, the concrete form of described latching structure is: the bottom outer wall at installing hole 3 is symmetrically arranged with two clamp bar slots 31, sidewall at jump ring cover 4 is symmetrically arranged with two horizontal microscler through holes 41, jump ring below microscler through hole 41 overlaps 4 sidewalls and is provided with the vertical openings 42 of cutting off this place's sidewall, form two card bases 43 so that be positioned at the jump ring cover sidewall on vertical openings 42 both sides, after jump ring cover 4 is installed in the installing hole 3, outside spreading card base 43, card base 43 is just in time snapped in the draw-in groove 31 on installing hole 3 bottom outer wall, thereby jump ring is overlapped 4 kaysers in installing hole 3.Be provided with the circular arc cutaway 51 of dodging the cervical vertebra screw head of a nail in the present embodiment on the jump ring back-up ring 5, so that the installation of cervical vertebra screw.
Beneficial effect of the present invention: the 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 and can not hinder moving ahead of the cervical vertebra screw head of a nail toward jump ring cover 4, until the cervical vertebra screw head of a nail is toward the crowded group claw arm 61 in next door and after crossing claw arm 61, claw arm 61 is elastic reset and block the outside at the cervical vertebra screw head of a nail again, thereby play the effect that prevents that effectively the cervical vertebra screw from withdrawing from, whole operating process is very convenient.
Claims (4)
1. self-locking anterior cervical plates, comprise: the steel plate body, position, both sides on the steel plate body is respectively arranged with a pair of in order to the cervical vertebra screw hole of cervical vertebra screw to be installed, be respectively arranged with an installing hole on the steel plate body between the every pair of cervical vertebra screw 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 the jump ring back-up ring, it is inboard that jump ring is positioned at the jump ring back-up ring, and be sleeved on jump ring and put, top exterior walls at each installing hole is respectively arranged with the annular groove that holds jump ring and jump ring back-up ring, the perforation that mutually crosses of each annular groove and the cervical vertebra screw hole that is positioned at its both sides, so that two claw arms of jump ring can stretch into respectively in the cervical vertebra screw hole of both sides, and stretch into the outside that the claw arm in the cervical vertebra screw hole can block the cervical vertebra screw head of a nail in being installed on the cervical vertebra screw hole from annular groove; Be provided with the gap between two claw arms of jump ring and the jump ring cover outer wall, so that be installed in the process of cervical vertebra screw hole at the cervical vertebra screw, two claw arms of jump ring can be dodged over there and can not hinder moving ahead of the cervical vertebra screw head of a nail toward the jump rings cover, until after the cervical vertebra screw head of a nail squeeze to dial the claw arm and cross the claw arm toward the next door, the claw arm is elastic reset and block the outside at the cervical vertebra screw head of a nail again; Also being provided with between installing hole and jump ring cover can be with the latching structure of both mutual clampings.
2. self-locking anterior cervical plates according to claim 1, it is characterized in that: the concrete form of described latching structure is: the bottom outer wall at installing hole is symmetrically arranged with two clamp bar slots, sidewall at the jump ring cover is symmetrically arranged with two horizontal microscler through holes, jump ring cover sidewall below microscler through hole is provided with the vertical openings of cutting off this place's sidewall, form two card bases so that be positioned at the jump ring cover sidewall on vertical openings both sides, after the jump ring cover is installed in the installing hole, outside spreading card base, card base is just in time snapped in the draw-in groove on the installing hole bottom outer wall, thereby jump ring is overlapped kayser in installing hole.
3. self-locking anterior cervical plates according to claim 1 and 2 is characterized in that: the center position of described mounting hole site between every pair of cervical vertebra screw hole.
4. self-locking anterior cervical plates according to claim 1 and 2 is characterized in that: be provided with the circular arc cutaway of dodging the cervical vertebra screw head of a nail on the jump ring back-up ring.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103040511A true CN103040511A (en) | 2013-04-17 |
| CN103040511B CN103040511B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210577276.7A Active CN103040511B (en) | 2012-12-27 | 2012-12-27 | Self-locking type anterior cervical vertebra plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69838856T2 (en) * | 1997-02-11 | 2008-12-11 | Warsaw Orthopedic, Inc., Warsaw | Plate for the anterior cervical spine with fixation system for one screw |
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2012
- 2012-12-27 CN CN201210577276.7A patent/CN103040511B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113742A (en) * | 2018-02-09 | 2018-06-05 | 北京市富乐科技开发有限公司 | Anterior cervical plates |
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| Publication number | Publication date |
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| CN103040511B (en) | 2015-03-04 |
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