It is suitable for the ring spring shape exter-nal fixer of comminuted fracture
Technical field
The present invention relates to a kind of ring spring shape exter-nal fixer, have and relate to a kind of using cable to carry out outside the bone that osseous part is fixing
Holder.
Background technology
During the orthopaedics therapies such as fracture, postoperative penetrate epidermis frequently by various supports, skeleton is fixed and makes
Recovery, after recovery, then by trauma operation, support is removed, whole process needs to carry out Repeated Operation, to human body
The wound that muscle and skin portion bring is bigger, and the convalescence after Miles operation is the most long, and the most traditional support is to osseous part band
Compressing and the wound come are the biggest;
To this currently on the market, it is provided that wound degree and minimizing operation number of times when much can reduce operation to a certain extent, same
Time again can accelerate healing orthopedic fixer, such as the invention of Patent No. ZL201120537796.6, where it is proposed one
For the steel wire of skeleton portion parcel, this steel wire reduces skeleton by arranging absorbable material protection set in Steel Wire Surface
Damage, reduces the probability of skeleton ischemic necrosis, but itself still realizes the fixing, at bone of osseous part by the way of being repeatedly wound around
After bone recovers, remove on the steel wire skin that brought of operation and muscle bed the biggest, need the long time to recover;
For another example with the patent of invention of the entitled a kind of patella external fixer of ZL201420132756.7, wherein it is also proposed a kind of micro-
The fixed mount outside skeleton of wound, this structure comparison compares the fixed structure of the steel nail being similar to commonly use now, and it is main
Syllabus is to realize multi-faceted osseous part to fix, and the wound that human body is brought by the thinnest steel nail is smaller, can avoid secondary
Take out injury and infection that human body is brought by operation, but in its technical scheme, steel nail play main supporting role, in order to ensure
Its certain support performance (i.e. bending strength) thus steel nail itself cannot do thin as acupuncture needle, so its steel nail is to people
The reduction of body surface skin and flesh wound degree still ratio is relatively limited, and steel nail itself is because of its volume reason and special life
Physical performance reason, if using titanium alloy etc materials to make, difficulty of processing and cost are the highest, if using some raw
If the preferable polymer of physical performance makes, its intensity cannot ensure again, and the main eyelid retractor of this invention simultaneously is an annular gold
Belonging to plate, during installation, can treat the limbs portion of operation and bring and block, installing can be relatively difficult, also cannot realize X-ray according under standard
Really install;
So in sum, skeleton external stability utensil of the prior art still also exists the deficiency of many, such as: install band
The wound, the secondary that come take out operation wound, cost cannot reduce, installation difficulty is big.
Summary of the invention
The technical problem to be solved in the present invention is: overcome prior art medium-height trestle to install wound operation complexity big, fixing etc.
Technical problem, it is provided that a kind of less to setter wound, it is possible to reduce even without the Orthopedic fixing support of second operation.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of ring spring shape exter-nal fixer, including fixer in vitro and longitudinally fixed device, passes through body between described longitudinally fixed device
External fixator is fixed to body surface, and described longitudinally fixed device includes that longitudinal housing and some surfaces of bone being arranged in housing are fixed
Assembly;
Described longitudinal housing is ring spring shape, and described surface of bone fixation kit includes several fixed blocks being fixed on longitudinal housing,
It is provided with fixed cable between described fixed block, between described housing, is provided with the carriage being at least made up of two fixed cable
Frame, described support frame contacts, realizes the support of skeleton with surface of bone;
Described fixer in vitro includes two fixing plugs being arranged on longitudinal axial both sides of housing, and the outer wall of described fixing plug sets
It is equipped with the thread groove corresponding with the internal ring of described longitudinal housing, in the middle part of described fixing plug, is provided with a cylindrical hole, institute
Being provided with the support set of circular tube shaped in stating cylindrical hole, described fixing plug is made up of at least two arc block.
As the further innovation of the present invention, the two ends up and down of described fixing plug are provided with annular groove, described arc block
Between connect by the jump ring that is arranged in annular groove is fixing.
As the further innovation of the present invention, described fixed block includes one for the fixing hole fixing fixed cable, institute
State and on the sidewall of fixing hole, be provided with lock-screw A.
As the further innovation of the present invention, described fixed block include one for the sliding eye being socketed with housing, described
Lock-screw B it is provided with on the sidewall of sliding eye.
As the further innovation of the present invention, described fixed cable includes that elastic threads, the material of described elastic threads have life
The thing compatibility.
As the further innovation of the present invention, described elastic threads uses aliphatic polyester to make.
As the further innovation of the present invention, in the middle part of described elastic threads, it is provided with reinforced metal cable, described reinforced metal line
The material of cable has biocompatibility.
As the further innovation of the present invention, described reinforced metal cable uses titanium alloy to make.
As the further innovation of the present invention, support set uses flexible material to make.
The invention has the beneficial effects as follows:
The present invention uses the cooperation of housing and elastic threads, by the less elastic threads of diameter under the support of housing, forms one
Or multiple fixing mesh, thus realize the cooperation to skeleton, because the low elasticity of elastic threads, it is possible not only to ensure consolidating of skeleton
Fixed, it is also possible to prevent the elastic threads excessive compressing to bone surface simultaneously, causes osteonecrosis;
The present invention is because its diameter is less simultaneously, so during initial surgery, block surface is smaller, can compare accurate
Operation, and its wound face of the implantation of elastic threads only has aperture size, it is possible to achieve the purpose of Minimally Invasive Surgery;
The housing of the wound spring shape of the present invention, not only increases globality, simultaneously as the elasticity of spring resisting longitudinal deformation, makes
The housing obtaining the present invention can carry out the deformation of trace according to the shape of human arm, and because the elasticity of spring itself, again may be used
Self modification is carried out with the skeleton to straight barrel type;
Support set can prevent fixing plug inwall from rubbing with human epidermal, cause epidermis while fixing plug screws in
Damaged.
In addition the present invention also can realize being fastened skeleton, thus adapts to the situation of comminuted fracture.
The method of work of above-mentioned ring spring shape exter-nal fixer, it is characterised in that including: when fixing, first according to concrete
Situation, penetrates into subcutaneous by fixed cable, until the opposite side from limb portion is drawn, is inserted in by longitudinal direction housing subsequently and is nested into human body
Arm, fixed block is fixed on longitudinal housing by lock-screw B, the two ends of fixed cable 3 is strained and by lock
Tight screw A, is fixed fixed cable 3, arranges the fixed cable on second pair of fixed block subsequently, until being strapped in by skeleton
In the Main subrack that fixed cable shown in Fig. 2 is surrounded, it is achieved fixing of skeleton.
1, the housing of the present invention also uses the loop configuration that profile is less, shielded area is smaller, alleviates whole
The weight of holder, reduces the difficulty of operation, also saves material.
2, the elastic threads of the present invention uses clamped-in style to fix, and this structure can improve the convenience of installation, strains simultaneously
Line can also be installed with a higher pretightning force.
3, fixing for sliding between fixed block and the housing of the present invention, between adjustment fixed block that can be convenient position
Put, thus easily according to concrete bone condition, adjust the fixed position of elastic threads, wide usage has been significantly greatly increased.
4, there is the elastic threads that the aliphatic polyester material of biocompatibility is made, because its low biocompatible, extensive
After Fu, the internal of human body can be stayed, secondary can be reduced and remove the wound degree of operation, if the destructiveness of skeleton own is not
If great, secondary can not be carried out and remove operation.
5, the tension cable of the present invention is also added into the strengthening cable that a titanium alloy makes excessively to lead to prevent from straining
The situation of the elastic threads fracture caused, after recovery can directly by the extraction of the strengthening cable of titanium alloy, be partially left at internal the most not
The biggest rejection problems can be there is.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is scheme of installation of the present invention;
Fig. 2 is the schematic diagram of the use state 1 of the present invention;
Fig. 3 is the schematic diagram of the use state 2 of the present invention;
Fig. 4 is the profile of fixed block;
Fig. 5 is the schematic diagram of longitudinal housing;
Fig. 6 is the profile of fixing plug;
Fig. 7 is the structural representation of fixing plug;
In figure: 1, fixed block;2, longitudinal housing;3, fixed cable;4, skeleton A;5, skeleton B;6, skeleton C;7, fixing plug;8, prop up
Support set;9, jump ring;
1-1, fixing hole;1-2, sliding eye.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only with
The basic structure of the illustration explanation present invention, therefore it only shows the composition relevant with the present invention.
Embodiment 1
Outer bone anchor mainly includes some longitudinally fixed devices and for connecting the connection support fixing each longitudinally fixed device, with
In time, be provided with for the fixer in vitro fixing with limb part at the two ends of support, and this product is mainly to for being connected with skeleton
Longitudinally fixed device improve, cancel original steel nail type and fix;
Concrete as it is shown in figure 1, the longitudinal housing in this product is ring spring shape, it is provided with surface of bone fixation kit, bone in longitudinal housing
Face fixation kit mainly includes some fixed blocks 1, is provided with fixed cable 3 between described fixed block 1, and described fixed block is fixed on
On fixing housing 2, by fixed block location on fixing housing 2 between described fixed cable 3, thus surround support frame;
Wherein fixed block (as shown in Figure 4) include one for by fixed block 1 set receive the sliding eye 1-2 on fixing housing 2,
It is provided with lock-screw B on the inwall of sliding eye 1-2, is additionally provided with one on fixed block for through fixed cable 3 simultaneously
Fixing hole 1-1, same is provided with one for the lock-screw A fixing fixed cable 3 on the sidewall of fixing hole 1-1;
Wherein fixed cable includes having the elastic threads that the aliphatic polyester material of biocompatibility is made, and sets in the middle part of elastic threads
It is equipped with and is similarly the reinforced metal line that the titanium alloy of biocompatible materials is made;
There is the elastic threads that the aliphatic polyester material of biocompatibility is made, because its low biocompatible, after recovery, can
To stay the internal of human body, secondary can be reduced and remove the wound degree of operation, if the destructiveness of skeleton own is little,
Secondary can not be carried out and remove operation;
The strengthening cable that titanium alloy is made, after recovery can be direct to prevent from straining the situation of the elastic threads fracture excessively caused
The strengthening cable of titanium alloy is extracted out, is partially left at and internal does not also have the biggest rejection problems;
Additionally, as shown in Figure 1, Figure 6, Figure 7, the side of fixing housing 2 is provided with two fixing plugs 7, and the outer wall of fixing plug 7 is arranged
There is the thread groove corresponding with longitudinal housing inwall, be internally provided with one for installing support set 8 at fixing plug 7 simultaneously
Through hole, is provided with one for the installing hole laying arm or leg, support set 8 generally silica gel etc. in the middle of support set 8
Gas permeable material is made;
Fixing plug 7 is made up of two semicircular arc blocks simultaneously, and the two ends up and down of arc block longitudinal direction are provided with two
The groove of annular, is fixed together by two jump rings 9 between arc block;
When fixing, as depicted in figs. 1 and 2, Fig. 2 is the fixing schematic diagram of single bone (skeleton A4), the most as the case may be,
Fixed cable 3 is penetrated into subcutaneous, until the opposite side from limb portion is drawn, subsequently longitudinal housing is inserted in 2 and is nested into human body
Arm, is fixed to fixed block on longitudinal housing by lock-screw B, is strained at the two ends of fixed cable 3 and by locking
Screw A, is fixed fixed cable 3, arranges the fixed cable on second pair of fixed block subsequently, until skeleton is strapped in figure
In the Main subrack that fixed cable shown in 2 is surrounded, it is achieved fixing of skeleton.
Embodiment 2
As it is shown on figure 3, be the present invention use schematic diagram when carrying out many skeletal fixations;
Outer bone anchor mainly includes some longitudinally fixed devices and for connecting the connection support fixing each longitudinally fixed device, with
In time, be provided with for the fixer in vitro fixing with limb part at the two ends of support, and this product is mainly to for being connected with skeleton
Longitudinally fixed device improve, cancel original steel nail type and fix;
Concrete as it is shown in figure 1, the longitudinally fixed device in this product mainly includes some fixed blocks 1, arrange between described fixed block 1
Fixed cable 3, described fixed block is had to be fixed on fixing housing 2, by fixed block at fixing housing between described fixed cable 3
Location on 2, thus surround support frame;
Wherein fixed block (as shown in Figure 4) include one for by fixed block 1 set receive the sliding eye 1-2 on fixing housing 2,
It is provided with lock-screw B on the inwall of sliding eye 1-2, is additionally provided with one on fixed block for through fixed cable 3 simultaneously
Fixing hole 1-1, same is provided with one for the lock-screw A fixing fixed cable 3 on the sidewall of fixing hole 1-1;
Wherein fixed cable includes having the elastic threads that the aliphatic polyester material of biocompatibility is made, and sets in the middle part of elastic threads
It is equipped with and is similarly the reinforced metal line that the titanium alloy of biocompatible materials is made;
The most as the case may be, fixed cable 3 is penetrated into subcutaneous, until the opposite side from limb portion is drawn, subsequently will longitudinally
Housing is inserted in 2 arms being nested into human body, is fixed on longitudinal housing by lock-screw B by fixed block, by fixed cable 3
Two ends are strained and by lock-screw A, fixed cable 3 are fixed, arrange the fixing line on second pair of fixed block subsequently
Cable;
Fig. 3 represents with skeleton B5 the tibia on shank, with the fibula on skeleton C6 simulation shank, first passes through two pairs of fixed blocks
1 and two fixed cable, it is achieved skeleton C5's is fixing, simultaneously by two further pairs fixed block 1 and other two fixing lines
Cable, it is achieved skeleton C6's is fixing, finally can realize the phase between two skeletons by one to two pairs of fixed blocks 1 and fixed cable
To location.
Embodiment 3
Fixed cable can be carried out interconnection between the fixed block of different longitudinally fixed devices by the present invention simultaneously, such as, enter
What row was fixing has 3 longitudinally fixed devices, including longitudinally fixed device A, longitudinally fixed device B, longitudinally fixed device C, fixes longitudinally in each
Device includes 4 fixed blocks, and four fixed blocks of the most longitudinally fixed device A are respectively labeled as fixed block AI, fixed block AII, fix
Block AIII, fixed block AIV, when cross arrangement, the fixed block AI on longitudinally fixed device A can fixing with longitudinally fixed device B
Connected by fixed cable between block BII, the fixed block AII on the most longitudinally fixed device A and the fixed block on longitudinally fixed device C
CIV is connected by fixed cable, and two fixed cable contact one support frame of composition with bone surface.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.