CN105816227A - Bone fixing device - Google Patents
Bone fixing device Download PDFInfo
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- CN105816227A CN105816227A CN201510002859.0A CN201510002859A CN105816227A CN 105816227 A CN105816227 A CN 105816227A CN 201510002859 A CN201510002859 A CN 201510002859A CN 105816227 A CN105816227 A CN 105816227A
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- nail
- locks
- skeleton
- lock
- bone fixator
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Abstract
The invention provides a bone fixing device comprising a fixed rod, at least one first bone nail, and at least one second bone nail; the first bone nail is provided with a first fixed end and a first locking end arranged in opposite, wherein the first fixed end is fixed on the fixed rod, and the first locking end is locked on the first bone; the second bone nail is provided with a second fixed end and a second locking end arranged in opposite, wherein eh second fixed end is fixed on the fixed rod, and the second locking end is locked on the second bone; the second bone nail material comprises shape memory alloy and the second bone nail can be deformed by temperature changes, thus driving the second locking end to move relative to the first locking end.
Description
Technical field
The present invention relates to a kind of fixing device, particularly relate to a kind of bone fixator.
Background technology
In orthopaedic medical treatment field, the medical mode for fracture has many kinds, the most commonly utilizes the bone fixator such as nail and hone lamella to fix the knochenbruch of fracture.In recent years, the mode of the knochenbruch of fixing fracture by the conventional formula that is completely fixed towards dynamic fixed development, i.e. allow skeleton section part to have trace movement (micromotion), stimulate bone cell growth and the healing of skeleton section part with the oppressive force produced by trace movement.
For fracturing with human body lower limbs, owing to lower limb are subjected to human body weight, therefore described oppressive force can be produced by human body weight at fracture of the lower limb section part.But, the force way of human upper limb is different from the force way of human body lower limbs, and human upper limb is not subjected to human body weight, therefore cannot as above utilize human body weight to oppress to promote that knochenbruch heals to upper limb skeleton section part.Therefore, how in the case of without the help of human body weight, at fracture face, oppressive force is produced, for the research theme that orthopaedic medical treatment field is important.
Summary of the invention
The present invention provides a kind of bone fixator, can be produced oppressive force at fracture face by the deformation of nail.
The bone fixator of the present invention includes fixing bar, at least one first nail and at least one second nail.This first nail has the fixing end of relative first and first and locks end, and wherein this first is fixed end and be fixed on this fixing bar, and this first locks end and be attached to the first skeleton.This second nail has the fixing end of relative second and second and locks end, and wherein this second is fixed end and be fixed on this fixing bar, and this second locks end and be attached to the second skeleton.The material of this second nail includes that marmem and this second nail are deformed by variations in temperature, and drive this second lock end relative to this first lock end produce displacement.
In one embodiment of this invention, above-mentioned this second locks to hold and relative to this by the deformation of this second nail first is locked end and produce the displacement of single direction.
In one embodiment of this invention, above-mentioned this second locks the deformation held by this second nail and first to lock end mobile toward this, first locks end and this second distance locking between end shortening this.
In one embodiment of this invention, above-mentioned this second locks the deformation held by this second nail and first locks end away from this, first locks end and this second distance locking between end increasing this.
In one embodiment of this invention, above-mentioned this second nail is deformed into case of bending by variations in temperature from straight configuration.
In one embodiment of this invention, above-mentioned this second nail is one of the forming.
In one embodiment of this invention, this above-mentioned second nail includes the first assembly and the second assembly assembled mutually, and this second is fixed end and be positioned at this first assembly, and this second locks end and be positioned at this second assembly, and the material of this first assembly is marmem.
In one embodiment of this invention, above-mentioned this second locks to hold and first locks mobile 1 millimeter～10 millimeters of end by the deformation of this second nail relative to this.
In one embodiment of this invention, above-mentioned this second locks to hold and first locks mobile 3 millimeters～5 millimeters of end by the deformation of this second nail relative to this.
In one embodiment of this invention, the material of above-mentioned this second nail includes Nitinol.
In the bone fixator of the present invention, the material of the second nail includes marmem, and makes the second nail have the ability varied with temperature and deform.Accordingly, first nail and the second nail are being fixed on fixing bar and are locking respectively after the first skeleton and the second skeleton, may utilize variations in temperature and allow the second nail produce suitable deflection, end generation displacement is locked relative to the first of the first nail to drive the second of the second nail to lock end, make to be locked by first and hold the first skeleton locked and locked generation active force between the second skeleton that end locks by second, and stimulate the bone cell growth of skeleton section part and healing by this active force, or promote the increase of bone length.
For the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 is that the bone fixator by one embodiment of the invention fixes the first skeleton and the schematic diagram of the second skeleton；
Fig. 2 is that second nail of Fig. 1 varies with temperature the schematic diagram deformed；
Fig. 3 is the structural representation of second nail of Fig. 1；
The schematic diagram of the installing flow process of Fig. 4 A and bone fixator that Fig. 4 B is Fig. 1；
Fig. 5 is that the bone fixator by another embodiment of the present invention fixes the first skeleton and the schematic diagram of the second skeleton；
Fig. 6 is that second nail of Fig. 5 varies with temperature the schematic diagram deformed.
Description of reference numerals:
50, the 50 ': the first skeleton；
60, the 60 ': the second skeleton；
100,200: bone fixator；
110,210: fixing bar；
120,220: the first nail；
120a, 220a: the first fixing end；
120b, 220b: first locks end；
130,230: the second nail；
130a, 230a: the second fixing end；
130b, 230b: second locks end；
132,232: the first assembly；
134,234: the second assembly；
D, D ': direction；
F: oppressive force；
F ': expansionary force.
Detailed description of the invention
Fig. 1 is that the bone fixator by one embodiment of the invention fixes the first skeleton and the schematic diagram of the second skeleton.Refer to Fig. 1, the bone fixator 100 of the present embodiment includes fixing bar 110, at least one first nail 120 (being shown as two) and at least one second nail 130 (being shown as two).Each first nail 120 has relative first fixing end 120a and first and locks end 120b, and wherein the first fixing end 120a is fixed on fixing bar 110, and first locks end 120b and be attached to the first skeleton 50.Each second nail 130 has relative second fixing end 130a and second and locks end 130b, and wherein the second fixing end 130a is fixed on fixing bar 110, and second locks end 130b and be attached to the second skeleton 60.In other embodiments, plural number bone fixator 100 can be used to fix the first skeleton 50 and the second skeleton 60 according to demand, this is not any limitation as by the present invention.
In the present embodiment, the first skeleton 50 and the second skeleton 60 two knochenbruch the most adjacent one another are.By each first nail 120 locking and each second nail 130 locking the second skeleton 60 the first skeleton 50, the first skeleton 50 can be made to interfix with the second skeleton 60.Furthermore, the material of each second nail 130 includes that marmem (such as Nitinol) and each second nail 130 can be deformed by variations in temperature, and drive the second of each second nail 130 to lock end 130b and lock end 120b generation displacement relative to the first of each first nail 120, make the first skeleton 50 and the second skeleton 60 lock by each second to hold 130b to lock the displacement of end 130a relative to each first and mutually oppress, to promote the healing of skeleton section part.Below by way of to accompanying drawing, this is specifically described.
Fig. 2 is that second nail of Fig. 1 varies with temperature the schematic diagram deformed.Each first nail 120 and each second nail 130 are being fixed on as shown in Figure 1 fixing bar 110 and are locking respectively after the first skeleton 50 and the second skeleton 60, may utilize variations in temperature and allow each second nail 130 comprising marmem produce suitable deflection as shown in Figure 2, make the second of each second nail 130 lock the end 130b deformation by the second nail 130 and lock end 120b toward the first of the first nail 120 and move, lock end 120b and second and lock the distance held between 130b shortening first.
Under the second the most undeformed state of nail 130, such as there is between the first skeleton 50 and the second skeleton 60 gap of trace.Shortened first as shown in Figure 2 by the deformation of the second nail 130 and lock the distance holding 120b and second to lock between end 130b, can make locked the first skeleton 50 holding 120b to lock by first and locked, by second, the second tight closing of skeleton 60 holding 130b to lock and between the first skeleton 50 and the second skeleton 60, produce oppressive force F, and stimulate bone cell growth and the healing of skeleton section part with this oppressive force F.In other embodiments, each first nail 120 also can comprise shape memory alloy material and be deformed in the way of being similar to each second nail 130, and this is not any limitation as by the present invention.
In the present embodiment, each second nail 130 comprising marmem is e.g. trained by shape memory and is become the straight configuration shown in Fig. 1 under relatively low temperature state, and becomes the case of bending shown in Fig. 2 by variations in temperature under higher temperatures state (such as blood heat).In other embodiments, can be trained by shape memory and make each second nail 130 have other deformation state at other temperatures, this is not any limitation as by the present invention.The known technology that memory training is art being carried out marmem, is not described in detail at this.
Owing to each second nail 130 is that the shape memory characteristic by marmem is deformed, rather than as the elastic deformation of elastomer, therefore second locks the displacement holding 130b to be locked end 120b generation single direction D relative to first by the deformation of the second nail 130, rather than produce two-way displacement.It is to say, second locks end 130b and will not lock end 120b along being in reverse to the direction of direction D away from first, and the first skeleton 50 and the second skeleton 60 can be made the most mutually to provide oppressive force F to promote the healing of skeleton section part.In the present embodiment, second lock end 130b and such as can lock end movement 1 millimeter～10 millimeters, preferably 3 millimeters～5 millimeters by the deformation of the second nail 130 relative to first along direction D.In other embodiments, second locks end can have other suitable displacement scope, and this is not any limitation as by the present invention.
The two upper limb knochenbruch that the first skeleton 50 shown in Fig. 1 and Fig. 2 is adjacent one another are with the second skeleton 60 for example, human body, and as above mutually oppressed by the deformation of nail.In other embodiments, bone fixator 100 can be applicable to the skeleton of other kind, and in order to make skeleton produce the relative displacement in other direction, this is not any limitation as by the present invention.
Fig. 3 is the structural representation of second nail of Fig. 1.Refer to Fig. 1 and Fig. 3, each second nail 130 of the present embodiment includes the first assembly 132 and the second assembly 134 assembled mutually, and the second fixing end 130a is positioned at the first assembly 132, and second locks end 130b and be positioned at the second assembly 134.The material of the first assembly 132 is that marmem is suitable for varying with temperature as shown in Figure 2 being deformed, and the spiral lock that material for example, rustless steel, titanium or the aluminium alloy etc. of the second assembly 134 are made by non-shape memory alloy material.
The schematic diagram of the installing flow process of Fig. 4 A and bone fixator that Fig. 4 B is Fig. 1.At installing bone fixator 100 during skeleton, the most first two knochenbruch (i.e. first skeleton 50 and the second skeleton 60) producing fracture shown in Fig. 4 A are reset to position shown in Fig. 4 B, and as shown in Figure 4 B the first nail 120 and the second assembly 134 are attached to the first skeleton 50 and the second skeleton 60 respectively.Then, as shown in Figure 1 the first assembly 132 comprising marmem is assembled to the second assembly 134, so that the second nail 130 can be deformed by the first assembly 132 as shown in Figure 2.In other embodiments, the shape memory alloy structure that the second nail can be one of the forming, and bone fixator can be installed according to other suitable flow process, this is not any limitation as by the present invention.
Fig. 5 is that the bone fixator by another embodiment of the present invention fixes the first skeleton and the schematic diagram of the second skeleton.Fig. 6 is that second nail of Fig. 5 varies with temperature the schematic diagram deformed.In the bone fixator 200 shown in Fig. 5 and Fig. 6, fixing bar 210, each first nail 220, each first fixing end 220a, each first locks end 220b, each first assembly 232, each second assembly 234, each second nail 230, each second fixing end 230a, each second configuration mode locking end 230b is similar to the fixing bar 110 shown in Fig. 1, each first nail 120, each first fixing end 120a, each first locks end 120b, each first assembly 132, each second assembly 134, each second nail 130, each second fixing end 130a, each second configuration mode locking end 130b, do not repeat them here.Bone fixator 200 is from the different places of bone fixator 100, bone fixator 200 is e.g. applied to Orthopedic correction operation (such as increasing operation) and corrects the first skeleton 50 ', second skeleton 60 ' of for example, vertebrae, and details are as follows.
First assembly 232 of each second nail 230 comprising marmem is e.g. trained by shape memory and is become the case of bending shown in Fig. 5 under relatively low temperature state.Each first nail 220 and each second nail 230 are being fixed on as shown in Figure 5 fixing bar 210 and are locking respectively after the first skeleton 50 ' and the second skeleton 60 ', may utilize variations in temperature and allow the first assembly 232 of each second nail 230 comprising marmem produce suitable deflection as shown in Figure 6 and to stretch, make the second of each second nail 230 lock the end 230b deformation by the second nail 230 and lock end 220b away from the first of the first nail 220, lock end 220b and second and lock the distance held between 230b increasing by first.Increased by first as shown in Figure 6 by the deformation of the second nail 230 and lock the distance holding 220b and second to lock between end 230b, can make locked the first skeleton 50 ' holding 220b to lock by first and locked generation expansionary force F ' between the second skeleton 60 ' that end 230b locks, to cause the gap increment of trace to increase the length of skeleton between the first skeleton 50 and the second skeleton 60 by second.
Owing to each second nail 230 is that the shape memory characteristic by marmem is deformed, rather than as the elastic deformation of elastomer, therefore second locks the displacement holding 230b to be locked end 220b generation single direction D ' relative to first by the deformation of the second nail 230, rather than produce two-way displacement.It is to say, second locks end 230b and will not lock end 220b toward first move along being in reverse to the direction of direction D ', and the first skeleton 50 ' and the second skeleton 60 ' can be made the most mutually to provide expansionary force F ' to promote the increase of bone length.
In sum, in the bone fixator of the present invention, the material of the second nail includes marmem, and makes the second nail have the ability varied with temperature and deform.Accordingly, first nail and the second nail are being fixed on fixing bar and are locking respectively after the first skeleton and the second skeleton, may utilize variations in temperature and allow the second nail produce suitable deflection, end generation displacement is locked relative to the first of the first nail to drive the second of the second nail to lock end, make to be locked by first and hold the first skeleton locked and locked generation active force between the second skeleton that end locks by second, and stimulate the bone cell growth of skeleton section part and healing with this active force, or promote the increase of bone length.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a bone fixator, it is characterised in that including:
Fixing bar；
At least one first nail, has the fixing end of relative first and first and locks end, and wherein this first is fixed end and be fixed on this fixing bar, and this first locks end and be attached to the first skeleton；And
At least one second nail, has the fixing end of relative second and second and locks end, and wherein this second is fixed end and be fixed on this fixing bar, and this second locks end and be attached to the second skeleton,
Wherein the material of this second nail includes that marmem and this second nail are deformed by variations in temperature, and drive this second lock end relative to this first lock end produce displacement.
Bone fixator the most according to claim 1, it is characterised in that this second locks to hold and relative to this by this deformation of this second nail first locked end and produce this displacement of single direction.
Bone fixator the most according to claim 1, it is characterised in that this second locks and hold by this deformation of this second nail that first to lock end mobile toward this, first locks end and this second distance locking between end shortening this.
Bone fixator the most according to claim 1, it is characterised in that this second locks to hold and first lock end by this deformation of this second nail away from this, first locks end and this second distance locking between end increasing this.
Bone fixator the most according to claim 1, it is characterised in that this second nail is deformed into case of bending by this variations in temperature from straight configuration.
Bone fixator the most according to claim 1, it is characterised in that this second nail is one of the forming.
Bone fixator the most according to claim 1, it is characterized in that, this second nail includes the first assembly and the second assembly assembled mutually, and this second is fixed end and be positioned at this first assembly, this second locks end and is positioned at this second assembly, and the material of this first assembly is marmem.
Bone fixator the most according to claim 1, it is characterised in that this second locks to hold and first lock mobile 1 millimeter～10 millimeters of end by this deformation of this second nail relative to this.
Bone fixator the most according to claim 1, it is characterised in that this second locks to hold and first lock mobile 3 millimeters～5 millimeters of end by this deformation of this second nail relative to this.
Bone fixator the most according to claim 1, it is characterised in that the material of this second nail includes Nitinol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002859.0A CN105816227A (en) | 2015-01-05 | 2015-01-05 | Bone fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002859.0A CN105816227A (en) | 2015-01-05 | 2015-01-05 | Bone fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105816227A true CN105816227A (en) | 2016-08-03 |
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ID=56513606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510002859.0A Pending CN105816227A (en) | 2015-01-05 | 2015-01-05 | Bone fixing device |
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| CN (1) | CN105816227A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056854U (en) * | 1989-10-10 | 1990-05-09 | 内蒙古大兴安岭林业中心医院 | Ni, ti-alloy rivet and plate for reparing skull defect |
| CN2124682U (en) * | 1992-05-30 | 1992-12-16 | 魏国勇 | Pediculus arcus vertebrae nailing lu's stick spine orthopedic stabilizer |
| CN2317822Y (en) * | 1997-12-15 | 1999-05-12 | 兰州记忆合金有限公司 | Split device for setting of fracture |
| CN1849099A (en) * | 2003-08-08 | 2006-10-18 | Sdgi控股股份有限公司 | Implants formed of shape memory polymeric material for spinal fixation |
| CN200942118Y (en) * | 2006-08-22 | 2007-09-05 | 姜喜明 | Memory alloy three-dimensional automatic pressure bone plate |
| CN101119683A (en) * | 2005-01-18 | 2008-02-06 | 斯恩蒂斯有限公司 | Angularly stable device for mutually fixing a longitudinal carrier to a bone fixing element |
| CN202515761U (en) * | 2011-11-23 | 2012-11-07 | 纪忠义 | Nickel-titanium memory alloy sustained-pressurization bone fracture plate |
| TWI452994B (en) * | 2007-10-11 | 2014-09-21 | Biedermann Technologies Gmbh | Rod assembly and modular rod system for spinal stabilization |
-
2015
- 2015-01-05 CN CN201510002859.0A patent/CN105816227A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056854U (en) * | 1989-10-10 | 1990-05-09 | 内蒙古大兴安岭林业中心医院 | Ni, ti-alloy rivet and plate for reparing skull defect |
| CN2124682U (en) * | 1992-05-30 | 1992-12-16 | 魏国勇 | Pediculus arcus vertebrae nailing lu's stick spine orthopedic stabilizer |
| CN2317822Y (en) * | 1997-12-15 | 1999-05-12 | 兰州记忆合金有限公司 | Split device for setting of fracture |
| CN1849099A (en) * | 2003-08-08 | 2006-10-18 | Sdgi控股股份有限公司 | Implants formed of shape memory polymeric material for spinal fixation |
| CN101119683A (en) * | 2005-01-18 | 2008-02-06 | 斯恩蒂斯有限公司 | Angularly stable device for mutually fixing a longitudinal carrier to a bone fixing element |
| CN200942118Y (en) * | 2006-08-22 | 2007-09-05 | 姜喜明 | Memory alloy three-dimensional automatic pressure bone plate |
| TWI452994B (en) * | 2007-10-11 | 2014-09-21 | Biedermann Technologies Gmbh | Rod assembly and modular rod system for spinal stabilization |
| CN202515761U (en) * | 2011-11-23 | 2012-11-07 | 纪忠义 | Nickel-titanium memory alloy sustained-pressurization bone fracture plate |
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Application publication date: 20160803 |