CN103040510B - Dynamic spine connecting rod - Google Patents
Dynamic spine connecting rod Download PDFInfo
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- CN103040510B CN103040510B CN201210560357.6A CN201210560357A CN103040510B CN 103040510 B CN103040510 B CN 103040510B CN 201210560357 A CN201210560357 A CN 201210560357A CN 103040510 B CN103040510 B CN 103040510B
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- spinal column
- groove
- elastic component
- connecting portion
- connection rod
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Abstract
The invention provides a dynamic spine connecting rod which comprises an upper connecting portion, a lower connecting portion and an elastic part, wherein the upper connecting portion and the lower connecting portion are connected with each other through the elastic part. The dynamic spine connecting rod is characterized in that the upper connecting portion, the lower connecting portion and the elastic part are integrally formed, an elastic hole is arranged in the elastic part, and an elastic groove is formed in the periphery of the elastic part. The elastic groove comprises multi-stage grooves and hollow holes, wherein each hollow hole is positioned between the grooves of each two adjacent stages and used for connecting the grooves of each two adjacent stages together. By the aid of a simple structure, spinal stability is improved, and normal physiological activities of a spine are kept.
Description
Divisional application explanation
The divisional application that the application is the applying date is on February 17th, 2011, application number is 201110041369.3, denomination of invention is the Chinese invention patent application of " a kind of spinal column dynamic connection rod ".
Technical field
The present invention relates to technical field is orthopedic implant technical field, particularly a kind of spinal column dynamic connection rod.
Background technology
When intervertebral disc degeneration or Minor articulus slippage or regression, intervertebral height can be caused to lose, rear structure is unstable, thus can cause intervertebral foramina and foraminal stenosis; And this narrow spinal nerves or the nerve root of oppressing, cause the symptoms such as patient's lumbago and skelalgia, numbness, have a strong impact on the quality of life of patient.
Topmost method known on addressing this problem is interbody fusion, by this interbody fusion, can keep intervertebral height, reduces the pressure of neuromechanism.At present, pedicle screw system (the metal pitman that in system, pitman is normally firm), fusion device and various plate-like component is mainly adopted to carry out strong fixing.But the relatively fixing stress that can cause of Fusion levels is concentrated to contiguous vertebral body, especially can increase the weight of the load of adjacent vertebral bodies.Meanwhile, the mobility forfeiture of Fusion levels can cause the range of activity of adjacent segment to increase, and to compensate the mobility of Fusion levels, thus cause the biomechanical environment of neighbouring section abnormal, the change of biomechanical environment finally result in Adjacent segment degeneration.
Spinal surgeons and researcher research find, existing pedicle screw system is stiff after the implantation.Although which increase the stability of lumbar vertebra, have also been changed the biomechanical environment of lumbar vertebra simultaneously, thus cause the probability of Adjacent segment degeneration.Had some lumbar vertebra dynamic implants to occur now, but their therapeutic effect is poor, mainly stability is inadequate, and range of movement is excessive, the related complication such as also have fracture of spinous process, implant loosens, thus causes the probability of again performing the operation.On the other hand, these implants can not or be not suitable for treating comparatively serious degenerative lumbar symptom, cause the range of application of these implants very narrow.
Recently, there is several pedicle of vertebral arch Dynamic link library rod clinically, for the operative treatment of the degenerative lumbar symptom of various degree.The major function of these Dynamic link library rods ensures, on the basis of spinal stabilization, to provide extra dynamic motion performance.
Prior art patent documentation US20070233075 discloses a kind of pedicle screw system, and it is made up of screw, kernel, a glove etc., and kernel penetrates a glove and is placed on the screw of adjacent vertebral bodies, and has special snap close locking.Stability and dynamic property can be provided for patient by the rigidity of adjustment kernel and a glove.The prior art pedicle screw system needs to provide kernel and a glove, thus complex structure, inconvenient Operation.
Scient ' x-Alphatec Spine company proposes one
tTL implant, this implant is a kind of Dynamic link library rod, and the centre of this pitman is made up of a complete buffer unit, and this buffer unit comprises stacked plate-like titanium alloy structure, allows linear extendible, controls axially and becomes angular movement.Each disc spring, through nitrogen oxidation processes, enhances antiwear property.The damping characteristics of rod allows 0.4mm maximum axial to compress in design and stretches, and allows the motion of (when bending and stretching with lateroflexion) most great achievement ± 2.25 ° simultaneously.Damping characteristics can play the effect of linear elasticity " buffer ".In combination type assembly system, be applied to non-fused sections, only limit flexion-extension motion and axially-movable, but there is no lateral bending and twisting property.In addition, this system also comprises the lordosis of preset nearly 15 °.The structure of the prior art implant is also comparatively complicated, needs more number of assembling steps, inconvenient Operation.
Prior art patent documentation CN100409820C proposes a kind of bio-flexible spinal fixation system of belt shape memorial alloy, it discloses a kind of bio-flexible spinal fixation system of belt shape memorial alloy, though this fixture can obtain good pliability, but the rigidity of this fixture is more weak, stability is not strong, can not provide the dynamic stability performance that spinal column is enough.
Summary of the invention
In view of the defect of prior art, the object of the invention is to develop a kind of spinal column dynamic connection rod, it can realize with simple structure the normal physiological activity keeping spinal column while providing spinal stability.
According to the present invention, provide a kind of spinal column dynamic connection rod, comprising: upper connecting portion; Lower connecting portion; And elastic component, described upper connecting portion and described lower connecting portion are interconnected by described elastic component, it is characterized in that: described upper connecting portion, described lower connecting portion and described elastic component form, in described elastic component, be provided with springhole, and spring groove is formed in the peripheral part of described elastic component.
By such scheme, the invention provides a kind of pedicle of vertebral arch dynamical system, its stuctures and properties is all better than existing product.Especially, according to the present invention, the upper connecting portion of spinal column dynamic connection rod, lower connecting portion and elastic component form, in described elastic component, be provided with springhole, and spring groove is formed in the peripheral part of described elastic component.Thus, the structure of spinal column dynamic connection rod of the present invention is single structure, does not thus need mechanical connection assembling.And, after pitman and pedicle screw are fixed, rely on the rigidity of pitman can provide the Initial stability of spinal column, simultaneously, the elastic performance of the elastic component of pitman can provide again spinal column mobility within the specific limits, to keep the biomechanical environment of natural spine.Thus, spinal column dynamic connection rod of the present invention can realize with simple structure the normal physiological activity keeping spinal column while providing spinal stability.
Preferably, described upper connecting portion and described lower connecting portion are relative to the centrage arranged off-centre of described elastic component; And/or the extension axis of described upper connecting portion and described lower connecting portion overlaps or does not overlap.The bias design of upper connecting portion and lower connecting portion position can make spinal column dynamic connection rod more to fit the dissection profile variation of spinal column adjacent segment.And, the biased link of spinal column dynamic connection rod of the present invention can after stretch and different restriction power be provided time anteflexion, thus biased link can provide the different limited degree on different activity direction, finally can prevent Adjacent segment degeneration.
Preferably, described upper connecting portion and described lower connecting portion are formed deviously relative to described elastic component, thus the centrage shape of described upper connecting portion and described lower connecting portion and elastic component at angle.Described angle is preferably in the scope of 0 degree to 30 degree.The upper connecting portion of spinal column dynamic connection rod and the band angle design of lower connecting portion can make spinal column dynamic connection rod share the abnormal load of spinal column better, help spinal column to recover normal biomechanical environment.
Preferably, the circumferential profile of described elastic component is circle, ellipse, box-shaped or irregular shape.The different shape of the elastic component of spinal column dynamic connection rod can provide different elastic performances, thus can relation better between the normal mobility of matching spinal column and bearing load.
Preferably, the circumferential profile size of described elastic component can change along the centrage of this elastic component, has nonlinear elastic performance to make described elastic component.Thus, spinal column dynamic connection rod of the present invention can provide nonlinear elastic performance, the nonlinear design of this elastic performance more meets the mechanical property performance of spinal column when carrying, and thus spinal column dynamic connection rod of the present invention can the flexural center of self adaptation spinal column after the implantation.
Preferably, the profile of described springhole is crescent, circle, ellipse, box-shaped or irregular shape.By the selection of shape, different elastic performances can be provided for the elastic component of spinal column dynamic connection rod, with the relation better between the normal mobility of matching spinal column and bearing load.
Preferably, the axis of described springhole overlaps with the centrage of described elastic component; Or the axis of described springhole is relative to disalignment one distance of described elastic component; Or the axis of described springhole is relative to centerline dip one angle of described elastic component; Or the axis of described springhole relative to described elastic component disalignment one apart from and the angle that simultaneously also tilts.By the position of springhole and the selection of angle, different elastic performances can be provided for the elastic component of spinal column dynamic connection rod, with the relation better between the normal mobility of matching spinal column and bearing load.
Preferably, the width of described springhole and length or aperture can change along the centrage of this elastic component, have nonlinear elastic performance to make described elastic component.Thus, nonlinear elastic performance can be provided for the elastic component of spinal column dynamic connection rod, with the relation better between the normal mobility of matching spinal column and bearing load.
Preferably, described spring groove spirally extends in the peripheral part of described elastic component.Thus, can easily for spinal column dynamic connection rod provides elastic performance.
Preferably it is possible to the elastic performance by regulating the groove width of described spring groove, separation and the number of turns to regulate described elastic component.Thus, different elastic performances can be provided for the elastic component of spinal column dynamic connection rod, with the relation better between the normal mobility of matching spinal column and bearing load.
Preferably, the groove width of described spring groove and separation can change along the centrage of described elastic component, have nonlinear elastic performance to make described elastic component.Thus, can relation better between the normal mobility of matching spinal column and bearing load.
Preferably, the cross-sectional profiles of described spring groove is rectangle or trapezoidal.Thus, can relation better between the normal mobility of matching spinal column and bearing load.
Preferably, described spring groove is formed by multistage groove and hollow hole, is connected with each other by the groove of described adjacent phases between the groove of the adjacent phases of wherein said hollow hole in described multistage groove.Thus, easily for spinal column dynamic connection rod provides elastic performance, and easily can process and manufacture.
Preferably, the groove part in each stage in described multistage groove has the groove expanded range angle being greater than 90 degree and being less than 360 degree.Thus, enough elastic performances and the stability of spinal column dynamic connection rod can be ensured.
Preferably it is possible to the elastic performance that the groove expanded range angle by adjusting each stage groove, the groove width of groove and the separation of groove regulate described elastic component, to make described elastic component, there is nonlinear elastic performance.Thus, suitable elastic performance can be provided for the elastic component of spinal column dynamic connection rod, with the relation better between the normal mobility of matching spinal column and bearing load.
In a word, the stuctures and properties of pedicle of vertebral arch dynamical system of the present invention is all better than existing product.And according to the present invention, after pitman and pedicle screw are fixed, the rigidity of pitman is relied on to provide the Initial stability of spinal column, the elastic part of pitman can provide again the mobility of spinal column certain limit simultaneously, keep the biomechanical environment of natural spine, prevent the excessive load that neighbouring section causes because of strong fixing, thus prevent the regression of neighbouring section.By the present invention, while recover intervertebral height, minimizing spinal nerves pressure, spinal stability being provided, the normal center of rotation of spinal column can be kept, the fine motion after treatment is provided, reduce the probability of Adjacent segment degeneration.
Above-mentioned feature and advantage of the present invention are readily appreciated that from below with reference to the accompanying drawings described preferred embodiment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the pitman of the prior art being applied to spinal column.
Fig. 2 (a) is the schematic diagram of spinal column dynamic connection rod according to an embodiment of the invention.
Fig. 2 (b) is the axonometric chart of the spinal column dynamic connection rod according to an embodiment of the invention being applied to spinal column.
Fig. 3 is the schematic diagram of spinal column dynamic connection rod according to another embodiment of the invention.
Fig. 4 is the schematic diagram of spinal column dynamic connection rod according to still a further embodiment.
Fig. 5 (a), Fig. 5 (b) and Fig. 5 (c) are the schematic diagram of the spinal column dynamic connection rod according to three different embodiments of the present invention respectively.
Fig. 6 (a) and Fig. 6 (b) is the schematic diagram of the spinal column dynamic connection rod according to two different embodiments of the present invention respectively.
Fig. 7 is the schematic diagram of spinal column dynamic connection rod according to still a further embodiment.
Fig. 8 and Fig. 9 is the cross-sectional schematic of the spinal column dynamic connection rod according to two different embodiments of the present invention respectively.
Figure 10 (a), Figure 10 (b) and Figure 10 (c) are the schematic diagrams of spinal column dynamic connection rod according to another preferred embodiment.
Detailed description of the invention
The preferred embodiments of the present invention are described in detail below with reference to accompanying drawing.
Fig. 1 is the schematic diagram of the pitman of the prior art being applied to spinal column.In the prior art, the metal pitman that the pedicle screw system pitman of spinal fusion surgery is normally firm, as shown in Figure 1; Firm metal pitman does not like this have elasticity.This firm metal pitman can make the Fusion levels of spinal column fixed relative to one another.But the relatively fixing stress that can cause of Fusion levels is concentrated to contiguous vertebral body; Meanwhile, the forfeiture of the mobility of Fusion levels can cause the range of activity of adjacent segment to increase, and to compensate the mobility of Fusion levels, thus causes the biomechanical environment of neighbouring section abnormal; And the change of biomechanical environment finally can cause Adjacent segment degeneration.
Device of the present invention belongs to the pedicle of vertebral arch dynamical system of spinal column non-fused operation.Fig. 2 (a) is the schematic diagram of spinal column dynamic connection rod according to an embodiment of the invention.Fig. 2 (b) is the axonometric chart of the spinal column dynamic connection rod according to an embodiment of the invention being applied to spinal column.
In Fig. 2 (a), Reference numeral 1 represents spinal column dynamic connection rod; Reference numeral 2 represents upper connecting portion; Reference numeral 3 represents lower connecting portion; Reference numeral 4 represents elastic component; Reference numeral 5 represents spring groove; Reference numeral 6 represents springhole; And X-X represents the centrage of elastic component.
As shown in Figure 2 (a) shows, the present invention adds one section of elastic component 4 on the basis of the pitman of prior art.This elastic component 4 can provide elastic performance for spinal column dynamic connection rod 1.After spinal column dynamic connection rod 1 implant into body, elastic component 4 can maintain motion in the certain range of activity of human spine.Whole spinal column dynamic connection rod 1 is roughly made up of upper connecting portion 2, lower connecting portion 3, elastic component 4, spring groove 5 and springhole 6.
From Fig. 2 (a) and Fig. 2 (b), this spinal column dynamic connection rod 1 is in monomer structure, that is, its each ingredient is integrally formed.The upper connecting portion 2 of spinal column dynamic connection rod 1 is for being connected to a part for human spine's structure, and the lower connecting portion 3 of spinal column dynamic connection rod 1 is for being connected to another part of human spine's structure.Upper connecting portion 2 and lower connecting portion 3 are linked together by therebetween elastic component 4, the structure and upper connecting portion 2, lower connecting portion 3 and elastic component 4 form as one.Upper connecting portion 2, lower connecting portion 3, elastic component 4 all have column structure.Get out flexible hole 6 at the approximate mid-section place of elastic component 4, this springhole 6 generally along centrage X-X and extends and penetrate through elastic component 4 along the longitudinal.In the peripheral part of elastic component 4, cut out flexible groove 5, wherein form spring groove 5 by the peripheral part of hollow out elastic component 4.This spring groove 5 spirally extends in the peripheral part of elastic component 4.Form spring groove 5 due to the peripheral part by hollow out elastic component 4, so spring groove 5 penetrates the peripheral part of elastic component 4, the springhole 6 of central authorities is communicated with outside by this spring groove 5.By the spinal column dynamic connection rod 1 designed above, elastic component 4 both can maintain the stability of spinal column, and spinal column can be allowed again movable within the specific limits, thus kept the biomechanical environment of natural spine.Thus, the excessive load that neighbouring section causes because of strong fixing can be prevented, and then the regression of neighbouring section can be prevented.
Fig. 3 is the schematic diagram of spinal column dynamic connection rod according to another embodiment of the invention, Fig. 4 is the schematic diagram of spinal column dynamic connection rod according to still a further embodiment, which respectively illustrates two kinds of different embodiments of the structure of the link of spinal column dynamic connection rod of the present invention.
In the embodiments of figure 3, relative to the centrage X-X of the elastic component 4 of spinal column dynamic connection rod, the position of upper connecting portion 2, lower connecting portion 3 is eccentric design, and upper connecting portion 2, lower connecting portion 3 be not on same straight line.That is, the upper connecting portion 2 of cylindricality, lower connecting portion 3 are not positioned on centrage X-X, but are positioned at the position except centrage X-X; And the extension axis of upper connecting portion 2, lower connecting portion 3 does not also overlap.The design of this bias can be fitted the dissection profile variation of spinal column adjacent segment more.
In the embodiment of Fig. 2 (a), Fig. 2 (b), Fig. 3, upper connecting portion 2, lower connecting portion 3 extend vertically, thus substantially parallel with the centrage of elastic component.But, the present invention is not limited thereto.Such as, in the fig. 4 embodiment, upper connecting portion 2, lower connecting portion 3 are formed deviously relative to elastic component 4, thus upper connecting portion 2, can have certain angle [alpha] between lower connecting portion 3 and the centrage of elastic component, and this angle can meet the physiological camber of spinal column.Preferably, this angle [alpha] can in the scope of about 0 degree of-30 degree.The upper connecting portion of spinal column dynamic connection rod and the band angle design of lower connecting portion can share the abnormal load of spinal column better, help spinal column to recover normal biomechanical environment.
The elastic component 4 of spinal column dynamic connection rod of the present invention can also have the design of multiple elastomer structure.Elastic component of the present invention can be screw-shaped groove design, and the circumferential profile of elastic component can be circle, ellipse, box-shaped, irregularly shaped etc.As shown in Fig. 5 (a), the circumferential profile of the elastic component of spinal column dynamic connection rod of the present invention can ovalize.As shown in Fig. 5 (b), the circumferential profile of the elastic component of spinal column dynamic connection rod of the present invention can be box-shaped.The different shape of the elastic component of spinal column dynamic connection rod can provide different elastic performances, thus can relation better between the normal mobility of matching spinal column and bearing load.Especially, the circumferential profile size of elastic component can change along the centrage of elastic component, makes elastic component have nonlinear elastic performance.Such as, as shown in Fig. 5 (c), the diameter of the circumferential profile of the elastic component of spinal column dynamic connection rod of the present invention can reduce from top to bottom gradually.
The profile of the springhole of spinal column dynamic connection rod of the present invention can adopt various shape.Particularly, the profile of the springhole of spinal column dynamic connection rod of the present invention can be crescent, circle, ellipse, box-shaped, irregular shape etc.As shown in Figure 6 (a), the profile of the springhole 6 of spinal column dynamic connection rod according to an embodiment of the invention is crescent.As shown in Figure 6 (b), the profile of the springhole 6 of spinal column dynamic connection rod is according to another embodiment of the invention oval.
According to the present invention, the axis of the springhole 6 of spinal column dynamic connection rod can overlap with the centrage of elastic component 4; Or the axis of the springhole 6 of spinal column dynamic connection rod can be certain relative to the disalignment of elastic component 4 distance; Or the axis of the springhole 6 of spinal column dynamic connection rod can relative to the centerline dip certain angle of elastic component 4; Or the distance that the axis of the springhole 6 of spinal column dynamic connection rod is certain relative to the disalignment of elastic component 4 and the certain angle that simultaneously also tilts.Such as, in the embodiment as shown in figure 7, the axis of the springhole 6 of spinal column dynamic connection rod of the present invention is relative to the centerline dip certain angle of elastic component 4.
In addition, the width in adjustable elastic hole and length the elastic performance of adjustable elastic part can also be carried out.Especially, the width of springhole and length or aperture can change along the centrage of elastic component, make elastic component have nonlinear elastic performance.
As mentioned above, the spring groove of spinal column dynamic connection rod 1 of the present invention can be thread-like groove structure.And then, the groove width d of thread groove, separation P and the number of turns can be regulated to carry out the elastic performance of adjustable elastic part.Design parameter as shown in Figure 8.Especially, the groove width d of spring groove and separation P can change along the centrage of elastic component, makes elastic component have nonlinear elastic performance, as shown in Figure 9.In addition, the cross-sectional profiles of spring groove can be rectangle, trapezoidal etc.
The spring groove of foregoing spinal column dynamic connection rod of the present invention is all the groove extended along the peripheral part helically of elastic component.But, the present invention is not limited thereto.The spring groove of spinal column dynamic connection rod of the present invention can also be formed by multistage groove and hollow hole, and wherein said multistage groove is interconnected by described hollow hole therebetween.The groove in each stage in described multistage groove can not spirally extend; Such as, the groove in each stage can extend in the plane perpendicular to elastic component centrage.Figure 10 (a), Figure 10 (b) and Figure 10 (c) are the schematic diagrams of spinal column dynamic connection rod according to an embodiment of the invention, it illustrates the structure of the elastic component 4 comprising multistage groove and hollow hole.Figure 10 (a) is the perspective view of the spinal column dynamic connection rod of the embodiment of the present invention; Figure 10 (b) is the cross section view of the groove in one of them stage of the spinal column dynamic connection rod of the embodiment of the present invention; Figure 10 (c) is the side view of the spinal column dynamic connection rod of the embodiment of the present invention.As seen from the figure, spinal column dynamic connection rod of the present invention comprises elastic component 4, and this elastic component 4 comprises multistage groove, between described multistage groove, cut out hollow hole 7, the groove part in each stage has and is greater than the groove expanded range angle beta that 90 degree are less than 360 degree, as shown in Figure 10 (b).The design parameter of groove, as shown in Figure 10 (c), illustrated therein is groove width d and the separation P of groove.According to the present invention, the groove expanded range angle of each stage groove can be adjusted, elastic performance that the groove width of groove, the separation of groove carry out adjustable elastic part, make elastic component have nonlinear elastic performance.
Compared with the dynamic pedicle screw pitman of other prior aries, spinal column dynamic connection rod of the present invention has more excellent elastic performance, more meets spinal biomechanics requirement.And spinal column dynamic connection rod of the present invention can preset certain physiological camber, thus can have better curvature to adapt to the change of spinal column physiological camber.And spinal column dynamic connection rod of the present invention can, under the prerequisite ensureing spinal stabilization performance, provide spinal column more range of activity.Spinal column dynamic connection rod of the present invention not only can provide axial compression, bending restriction, can also limit the twist motion of spinal column.And, spinal column dynamic connection rod of the present invention can realize different elastic performance coefficients by the structural parameters changing pitman, thus nonlinear elastic performance can be provided, the nonlinear design of this elastic performance more meets the mechanical property performance of spinal column when carrying, and thus spinal column dynamic connection rod of the present invention can the flexural center of self adaptation spinal column after the implantation.The biased link of spinal column dynamic connection rod of the present invention can after stretch and different restriction power be provided time anteflexion, thus biased link can provide the different limited degree on different activity direction, finally can prevent Adjacent segment degeneration.And, the elastic performance that structure of the present invention mainly relies on the groove formed by hollow out elastic component peripheral part to provide elastic parameter variable, thus its total is single structure, there is no too much number of assembling steps, do not need mechanical connection assembling, thus avoid wearing and tearing or the inefficacy of mechanical connection, facilitate Operation.
For the ordinary skill in the art, can be easy to carry out various modification and improvement to the details of embodiments of the invention.These modification and improvement all drop within the scope of design of the present invention.
Claims (2)
1. a spinal column dynamic connection rod, comprising: upper connecting portion (2); Lower connecting portion (3); And elastic component (4), described upper connecting portion (2) and described lower connecting portion (3) are interconnected by described elastic component (4),
Described upper connecting portion (2), described lower connecting portion (3) and described elastic component (4) form, springhole (6) is provided with in described elastic component (4), and spring groove (5) is formed in the peripheral part of described elastic component (4)
It is characterized in that:
Described spring groove is formed by multistage groove and hollow hole (7), between the groove of the adjacent phases of wherein said hollow hole (7) in described multistage groove, and is connected with each other by the groove of described adjacent phases,
Wherein, the elastic performance of described elastic component can be regulated by the groove expanded range angle (β) of each stage groove of adjustment, the groove width (d) of groove and the separation (P) of groove, and described groove width (d) and described separation (P) can change along the centrage of described elastic component, have nonlinear elastic performance to make described elastic component.
2. spinal column dynamic connection rod according to claim 1, is characterized in that:
The groove part in each stage in described multistage groove has groove expanded range angle (β) being greater than 90 degree and being less than 360 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560357.6A CN103040510B (en) | 2011-02-17 | 2011-02-17 | Dynamic spine connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560357.6A CN103040510B (en) | 2011-02-17 | 2011-02-17 | Dynamic spine connecting rod |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110041369 Division CN102106750B (en) | 2011-02-17 | 2011-02-17 | Spinal column dynamic connection rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103040510A CN103040510A (en) | 2013-04-17 |
| CN103040510B true CN103040510B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210560357.6A Expired - Fee Related CN103040510B (en) | 2011-02-17 | 2011-02-17 | Dynamic spine connecting rod |
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| CN (1) | CN103040510B (en) |
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|---|---|---|---|---|
| CN1578644A (en) * | 2001-12-07 | 2005-02-09 | 马斯医药技术股份公司 | Vibration reducing element |
| EP1574173A1 (en) * | 2004-03-09 | 2005-09-14 | BIEDERMANN MOTECH GmbH | Elastic rod-shaped element for use in spinal or accident surgery and stabilising device comprising such an element |
| EP1586276A1 (en) * | 2004-04-16 | 2005-10-19 | BIEDERMANN MOTECH GmbH | Elastic element for use in a stabilising device for bones and method of fabrication of such an elastic element |
| CN1806767A (en) * | 2004-11-03 | 2006-07-26 | 毛里齐奥·福纳里 | In-vivo stabilizing apparatus capable of planting through fine puncture |
| CN1838918A (en) * | 2003-09-29 | 2006-09-27 | 斯恩蒂斯有限公司 | Device for elastically stabilizing vertebral bodies |
| CN201692035U (en) * | 2010-06-23 | 2011-01-05 | 北京市富乐科技开发有限公司 | Dynamic non-fusion connector |
-
2011
- 2011-02-17 CN CN201210560357.6A patent/CN103040510B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1578644A (en) * | 2001-12-07 | 2005-02-09 | 马斯医药技术股份公司 | Vibration reducing element |
| CN1838918A (en) * | 2003-09-29 | 2006-09-27 | 斯恩蒂斯有限公司 | Device for elastically stabilizing vertebral bodies |
| EP1574173A1 (en) * | 2004-03-09 | 2005-09-14 | BIEDERMANN MOTECH GmbH | Elastic rod-shaped element for use in spinal or accident surgery and stabilising device comprising such an element |
| EP1586276A1 (en) * | 2004-04-16 | 2005-10-19 | BIEDERMANN MOTECH GmbH | Elastic element for use in a stabilising device for bones and method of fabrication of such an elastic element |
| CN1806767A (en) * | 2004-11-03 | 2006-07-26 | 毛里齐奥·福纳里 | In-vivo stabilizing apparatus capable of planting through fine puncture |
| CN201692035U (en) * | 2010-06-23 | 2011-01-05 | 北京市富乐科技开发有限公司 | Dynamic non-fusion connector |
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| CN103040510A (en) | 2013-04-17 |
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