CN104207831A - Minimally invasive conformal repositor for repositing and fixing bone blocks around joints - Google Patents
Minimally invasive conformal repositor for repositing and fixing bone blocks around joints Download PDFInfo
- Publication number
- CN104207831A CN104207831A CN201410489322.7A CN201410489322A CN104207831A CN 104207831 A CN104207831 A CN 104207831A CN 201410489322 A CN201410489322 A CN 201410489322A CN 104207831 A CN104207831 A CN 104207831A
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- push rod
- circular arc
- reset
- conformal
- plate face
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Abstract
The invention relates to a minimally invasive conformal repositor for repositing and fixing bone blocks around joints, which belongs to the technical field of orthopedic surgical instruments, and is used for minimally invasive repositing the bone blocks around the joints. The minimally invasive conformal repositor for repositing and fixing the bone blocks around the joints is characterized in that the minimally invasive conformal repositor is formed by a push rod and a repositing head, wherein the repositing head is of a circular arc board structure or a circular arc clamp structure; the front end of the push rod and the rear end of the repositing head with the circular arc board structure are of a fixed connection structure or a rotary shaft connection structure; the front end of the push rod and the rear end of the repositing head with the circular arc clamp structure are of a fixed connection structure. The minimally invasive conformal repositor is simple in structure and convenient to use, can be used for thrusting dislocated bone blocks in a narrow area so as to accurately reposit and temporarily fix the dislocated bone blocks, realizes the effect of minimally invasive repositing surgery carried out on the bone blocks around the joints, appears for the first time in the field of minimally invasive orthopedic surgery, and can achieve the aims of improving the quality of orthopedic surgery for repositing the bone blocks around the joints, avoiding the influence on wound blood feeding, reducing postoperative recovery time, and reducing the pain of patients.
Description
Technical field
The present invention relates to a kind of Wicresoft's reset utensil adopting in the operation of bone block reset periarticular bone piece, belong to bone surgery utensil technical field.
Background technology
Damaging the spleen and stomach outside bone piece, tibia back ankle fracture, fracture of head of radius, Fracture of the distal ulna and radius etc. are clinical common damages.After fracture, owing to adhering to the tractive of the surrounding tissue such as ligament, tendon, sclerite is often shifted, and meanwhile, after fracture, due to the impact such as extruding, tractive of surrounding structure, sclerite also can be shifted.After being shifted, need to carry out operative reduction, still, due to the restriction of anatomical position, anatomical reduction sclerite has suitable difficulty.
For example,, after tibia back ankle fracture, because heel string is to back upper place tractive calcaneus, may push back ankle fracture piece is shifted to back upper place, because rear ankle position exists deeply, its rear has the soft tissues such as heel string to hold, and is difficult to reach anatomical reduction sclerite by general manual reduction.Even under operating room C shape arm or G arm perspective is auxiliary, because sclerotin around blocks, be also difficult to realize by the limited Wicresoft's fixing back ankle fracture piece that resets that appears.
In addition, after sclerite resets, need temporary fixed its position, then pedicle screw or blade plate screw carry out definitiveness and fix, in the time using Kirschner wire, reduction forceps etc. temporary fixed, operation also likely causes sclerite displacement.
Identical with tibia back ankle fracture, there are equally the problems referred to above at the fracture around joint such as fracture of head of radius, chi distal radius or part intra-articular fracture.
Therefore,, in order to realize well anatomical reduction fracture, Hospitals at Present is generally taked the method for extensively cutting, and to appear sclerite, then resets and fixes.But take this method wound large, can cause local blood transport to produce and disturb, affect union of fracture, not only increased patient's misery, also extended the time for the treatment of and rehabilitation.
Along with the progress of medical skill, Minimally Invasive Surgery has obtained develop rapidly, is that breast abdomen surgery or orthopaedics have all adopted Minimally Invasive Surgery in large quantities.The advantages such as Minimally Invasive Surgery is little with wound, good operation effect, operating time is short, wound recovers soon, patient suffering is little are subject to medical worker and patient's welcome, are widely applied.At present, in the reset periarticular bone piece operation of orthopaedics, adopt Minimally Invasive Surgery or blank, its reason is not have corresponding surgical instrument, be difficult in narrow and small region, the bone piece of displacement be passed, cannot make the bone piece parking position accuracy of displacement also temporary fixed, this problem is not resolved so far, becomes the restraining factors of carrying out Minimally Invasive Surgery in the operation of reset periarticular bone piece.In order to improve operation quality, reduce the postoperative recovery time, to reduce patient's misery, be necessary to design a kind of special instrument, to orthopaedics reset periarticular bone piece, the trial of Wicresoft's reattachment surgery is carried out in operation.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of periarticular bone piece fixing conformal positor of Wicresoft of resetting, the conformal positor of this Wicresoft can passed the bone piece of displacement in narrow and small region, make the bone piece parking position accuracy temporary fixed of displacement, improve operation quality to reach, reduce the postoperative recovery time, reduce patient suffering's object.
The technical scheme solving the problems of the technologies described above is:
A kind of periarticular bone piece fixing conformal positor of Wicresoft of resetting, it is by push rod, reset head composition, push rod is stock, reset head is arranged on the front end of push rod, reset head is circular arc plate face structure or circular arc clamp structure, circular arc plate face or circular arc clamp and sclerite rear portion conformal, the rear end of the reset head of the front end of push rod and circular arc plate face structure is fixed connection structure or rotating shaft connecting structure, the front end of the push rod of rotating shaft connecting structure is that rotating shaft is connected with the rear end of circular arc plate face, on push rod, have along push rod shaft to groove, the push rod that can move forward and backward is installed in groove, the front end of push rod is relative with the rear end of circular arc plate face, the rear end of the reset head of the front end of push rod and circular arc clamp structure is fixed connection structure.
Above-mentioned reset periarticular bone piece the fixing conformal positor of Wicresoft, have downward bending in the middle of the stock of described push rod, the front portion of push rod is lower than the rear portion of push rod, and the front portion of push rod or horizontal direction parallel with the rear portion of push rod has the angle of 5-30 degree.
Above-mentioned reset periarticular bone piece the fixing conformal positor of Wicresoft, the lower surface of the circular arc plate face of described circular arc plate face structure reset head is the arc surface raising up, the surperficial dissection radian of the radian of arc surface and displacement bone piece matches, the front end of the circular arc plate face of reset head has semicircle breach, on the arc surface of the lower surface of the circular arc plate face of reset head, there are multiple downward little sharp protrusion, multiple little sharp protrusion are uniform on the arc surface of the lower surface of reset head circular arc plate face, and the tip court of little sharp protrusion oliquely downward.
Above-mentioned reset periarticular bone piece the fixing conformal positor of Wicresoft, the circular arc clamp of described circular arc clamp structure reset head is made up of the clamp of both sides and middle cross bar, two side bitting clamps are the arc claw beam stretching out forward, the rear end of two side bitting clamps is connected with cross bar, and cross bar center is connected with the front end of push rod.
Above-mentioned reset periarticular bone piece the fixing conformal positor of Wicresoft, the clamp of the both sides of the reset head of described circular arc clamp structure and middle cross bar are for being fixedly connected with or flexible connection movably, movably the push rod of the flexible structure connecting is sleeve, the front end of push rod housing connects horizontal short sleeve, cross bar is divided into left and right two parts and is set in short sleeve, the outer end of both sides cross bar is connected with the clamp of both sides respectively, the inner of both sides cross bar connects respectively tooth bar, push rod housing inner sleeve dress adjusting lever, the front end of adjusting lever is installed gear, the both sides up and down of gear are meshed with the tooth bar of cross bar the inner, both sides respectively, the rear end of adjusting lever is positioned at the outer back end of push rod housing.
The invention has the beneficial effects as follows:
The present invention can stretch into fracture from mini-incision, the downward pushing and withstanding of reset head is to the sclerite of back upper place displacement, the little sharp protrusion of circular arc plate face reset head lower surface can firmly be controlled in the time of pushing and withstanding sclerite, prevent slippage, and can be temporary fixed after sclerite anatomical reduction, without changing reduction forceps; Circular arc plate face reset head front end has semicircle breach, for less sclerite, can directly pierce guide pin through this position, be screwed into hollow screw and fix, for larger sclerite, can control temporary fixed at this place's implantation Kirschner wire or reduction forceps, change again blade plate screw fracture, ensure not to be shifted in operative process; The clamp of the both sides of circular arc clamp reset head can transverse shifting, adjusts width between clamp, and clamp can firmly be controlled the sclerites of different sizes, can not occur to throw off or rotate in passing process.
The present invention is simple in structure, easy to use, can in narrow and small region, pass the bone piece of displacement, make the bone piece parking position accuracy of displacement also temporary fixed, solve the problem that Wicresoft's reattachment surgery is carried out in the operation of orthopaedics reset periarticular bone piece, fill up a blank of orthopaedics Minimally Invasive Surgery, can reach and improve orthopaedics reset periarticular bone piece operation quality, avoid impact on wound blood transport, reduce the postoperative recovery time, reduce patient suffering's object.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is another kind of structural representation of the present invention; ;
Fig. 4 is the top view of Fig. 3
Fig. 5 is the third structural representation of the present invention;
Fig. 6 is the 4th kind of structural representation of the present invention;
Fig. 7 is the 5th kind of structural representation of the present invention.
In figure, labelling is as follows: push rod 1, reset head 2, semicircle breach 3, little sharp protrusion 4, rotating shaft 5, groove 6, push rod 7, positioning round orifice 8, gap 9, clamp 10, cross bar 11, adjusting lever 12, short sleeve 13, gear 14, tooth bar 15, fluting 16, pull bar 17, dowel hole 18.
Detailed description of the invention
The present invention is made up of push rod 1, reset head 2.
In figure, show, push rod 1 is stock, and push rod 1 can be straight-bar, can be also the stock that has certain flexibility.In the middle of the stock of bending push rod 1, have downward bending, the front portion of push rod 1 is lower than the rear portion of push rod 1, and the front portion of push rod 1 or horizontal direction parallel with rear portion has the angle of 5-30 degree, has the push rod 1 of flexibility can make front end be inserted into more easily in wound.
In figure, show, reset head 2 is arranged on the front end of push rod 1, reset head 2 is circular arc plate face structure or circular arc clamp structure, circular arc plate face or circular arc clamp and sclerite rear portion conformal, the rear end of the reset head 2 of the front end of push rod 1 and circular arc plate face structure is fixed connection structure or rotating shaft connecting structure, and the rear end of the reset head 2 of the front end of push rod 1 and circular arc clamp structure is fixed connection structure.
In Fig. 1,2, show, the rear end of the reset head 2 of the front end of push rod 1 and circular arc plate face structure is fixed connection structure.The lower surface of circular arc plate face is the arc surface raising up, and the surperficial dissection radian of the radian of arc surface and displacement bone piece matches, and is conducive to circular arc plate face and blocks better displacement bone piece.For tibia back ankle fracture, at the displacement bone piece of the different parts such as fracture of head of radius, Fracture of the distal ulna and radius, the shape of circular arc plate face and displacement bone piece conformal, can make multiple circular arc plate face to adapt to different patients.
In Fig. 3,4, show, the rear end of the reset head 2 of the front end of push rod 1 and circular arc plate face structure is rotating shaft connecting structure.On push rod 1, have the groove 6 axial along push rod 1, the push rod 7 that can move forward and backward is installed in groove 6, the front end of push rod 7 is relative with circular arc plate surface rear end.This connected mode is unclamped push rod 7 in use backward, circular arc plate face can rotate, so that the bone piece to forward oblique rear displacement better, then transverse shifting push rod 1 front end, make circular arc plate face that bone piece is turned to tram, will before push rod 7, push away, hold out against circular arc plate face, circular arc plate face can not be rotated, then promote push rod 1 and make bone block reset.
Groove 6 is dovetail groove, and the bottom width of dovetail groove is greater than width above, and above dovetail groove, opening is along the upper surface of push rod 7, and cross section and the dovetail groove of push rod 7 match, and push rod 7 can prolapse upwards after pushing groove 6.Groove 6 can be also the circular hole axial along push rod 1, and push rod 7 is round bar, and push rod 7 slides before and after being inserted in circular hole, withstands on forward the rear end of reset head 2.
The back edge of circular arc plate face is arranged multiple zigzag gap 9, and push rod 7 front ends withstand on can be to two Slideslips on gap 9.
In figure, show, in above-mentioned two kinds of structures, the front end of circular arc plate face has semicircle breach 3, for less sclerite, can directly pierce guide pin through this position, be screwed into hollow screw and fix, for larger sclerite, can implant Kirschner wire at this place or reduction forceps be controlled temporary fixed, change again blade plate screw fracture, ensure not to be shifted in operative process.On the circular arc plate face of reset head 2, positioning round orifice 8 also can be set, can implant Kirschner wire at positioning round orifice 8 places and carry out temporary fixedly, ensure not to be shifted in operative process.
In figure, show, in above-mentioned two kinds of structures, have multiple downward little sharp protrusion 4 on the arc surface of the lower surface of circular arc plate face, multiple little sharp protrusion 4 are uniform on the arc surface of circular arc plate face lower surface, and the tip court of little sharp protrusion 4 oliquely downward.The effect of these little sharp protrusion 4 is in the time of pushing and withstanding sclerite, firmly to control, and prevents slippage, and can be temporary fixed after sclerite anatomical reduction, without changing reduction forceps.
Fig. 5 demonstration, the rear end of the reset head 2 of the front end of push rod 1 and circular arc clamp structure is fixed connection structure.Circular arc clamp is made up of the clamp 10 of both sides and middle cross bar 11, the arc claw beam of two side bitting clamps 10 for stretching out forward, and the rear end of two side bitting clamps 10 is connected with cross bar 11, and cross bar 11 centers are connected with the front end of push rod 1.On clamp 10 and cross bar 11, be distributed with little sharp protrusion 4, the effect of these little sharp protrusion 4 is identical with the effect of the little sharp protrusion 4 of circular arc plate face lower surface, can in the time of pushing and withstanding sclerite, firmly control, prevent slippage, and can be temporary fixed after sclerite anatomical reduction.
Fig. 6 demonstration, the reset head 2 of circular arc clamp structure also has a kind of movable expanding syndeton except Fig. 5 fixed connection structure.This movably flexible structure connecting is: push rod 1 is sleeve, the front end of push rod 1 sleeve connects horizontal short sleeve 13, cross bar 11 is divided into left and right two parts and is set in short sleeve 13, the outer end of both sides cross bar 11 is connected with the clamp 10 of both sides respectively, the inner of both sides cross bar 11 connects respectively tooth bar 15, push rod 1 inner sleeve dress adjusting lever 12, the front end of adjusting lever 12 is installed gear 14, the both sides up and down of gear 14 are meshed with the tooth bar 15 of both sides cross bar 11 the inners respectively, and the rear end of adjusting lever 12 is positioned at the outer back end of push rod 1 sleeve.
When use, rotate adjusting lever 12, gear 14 rotates, drive upper and lower tooth bar 15 respectively to two side shiftings, outwards or move inward, the width between the clamp 10 at cross bar 11 two ends can be adjusted the cross bar 11 that makes cross bar both sides, to adapt to the sclerites of different sizes, in passing process, can firmly control, can not occur to throw off or rotate.
Fig. 7 shows, the structure of the another kind of movable expanding of the reset head 2 of circular arc clamp structure is: push rod 1 is sleeve, cross bar 11 mid points are fixedly connected with the front end of push rod 1, an adjusting lever 12 of suit in sleeve, the lower end of two side bitting clamps 10 is contained on cross bar 11 by casing pipe sleeve, there is fluting 16 in the both sides of push rod 1 sleeve, two pull bars 17 are respectively through both sides fluting 16, the two ends of pull bar 17 are connected by rotating shaft with the upper end of adjusting lever 12 and the sleeve pipe of clamp 10 lower ends respectively, and adjusting lever 12 has multiple corresponding along the axial dowel hole 18 of push rod 1 with push rod 1 sleeve.
When use, promote forward or pull back adjusting lever 12, adjusting lever 12 drives pull bar 17 move forward or retreat, the clamp 10 that the other end of pull bar 17 can promote both sides along cross bar 11 outwards or move inward, adjust the width between two clamps 10, to adapt to the sclerite of different sizes, in passing process, can firmly control, can not occur to throw off or rotate.
This structure that can regulate clamp 10 width also has other various ways, as at cross bar mid point, oval cam being installed, and rotating cam, two side bitting clamps are along with the radius change of oval cam outwards or move inward to adjust two width between clamp.These structures should be all protection scope of the present invention, repeat no more.
Using method of the present invention:
First select the different reset heads 2 that have shape according to different operative sites, conformal to arrive with displacement bone piece;
Then limit is cut and is appeared tibia (radius, chi radius) rear partial cortical, implants positor, and pushing and withstanding is to the sclerite of back upper place displacement downwards;
Temporary fixed after sclerite anatomical reduction, without changing reduction forceps;
For less sclerite, can be directly pierce guide pin through the semicircle breach of reset head 2 front ends 3 positions, be screwed into hollow screw and fix; For larger sclerite, can implant at this place Kirschner wire or reduction forceps and control temporary fixedly, then change blade plate screw fracture, ensure not to be shifted in operative process.
Claims (5)
1. reset periarticular bone piece the fixing conformal positor of Wicresoft, it is characterized in that: it is by push rod (1), reset head (2) composition, push rod (1) is stock, reset head (2) is arranged on the front end of push rod (1), reset head (2) is circular arc plate face structure or circular arc clamp structure, circular arc plate face or circular arc clamp and sclerite rear portion conformal, the rear end of the reset head (2) of the front end of push rod (1) and circular arc plate face structure is fixed connection structure or rotating shaft connecting structure, the front end of the push rod (1) of rotating shaft connecting structure is that rotating shaft is connected with the rear end of circular arc plate face, on push rod (1), there is the groove (6) axial along push rod (1), the push rod (7) that can move forward and backward is installed in groove (6), the front end of push rod (7) is relative with the rear end of circular arc plate face, the rear end of the reset head (2) of the front end of push rod (1) and circular arc clamp structure is fixed connection structure.
2. reset periarticular bone piece according to claim 1 the fixing conformal positor of Wicresoft, it is characterized in that: in the middle of the stock of described push rod (1), have downward bending, the front portion of push rod (1) is lower than the rear portion of push rod (1), and the parallel or horizontal direction in the rear portion of the front portion of push rod (1) and push rod (1) has the angle of 5-30 degree.
3. reset periarticular bone piece according to claim 2 the fixing conformal positor of Wicresoft, it is characterized in that: the lower surface of the circular arc plate face of the reset head (2) of described circular arc plate face structure is the arc surface raising up, the surperficial dissection radian of the radian of arc surface and displacement bone piece matches, the front end of the circular arc plate face of reset head (2) has semicircle breach (3), on the arc surface of the circular arc plate face lower surface of reset head (2), there are multiple downward little sharp protrusion (4), multiple little sharp protrusion (4) are uniform on the arc surface of the circular arc plate face lower surface of reset head (2), the tip court of little sharp protrusion (4) oliquely downward.
4. reset periarticular bone piece according to claim 2 the fixing conformal positor of Wicresoft, it is characterized in that: the circular arc clamp of the reset head (2) of described circular arc clamp structure is made up of the clamp (10) of both sides and middle cross bar (11), the arc claw beam of two side bitting clamps (10) for stretching out forward, the rear end of two side bitting clamps (10) is connected with cross bar (11), and cross bar (11) center is connected with the front end of push rod (1).
5. reset periarticular bone piece according to claim 4 the fixing conformal positor of Wicresoft, it is characterized in that: the clamp (10) of the both sides of the reset head (2) of described circular arc clamp structure and middle cross bar (11) are for being fixedly connected with or flexible connection movably, movably the push rod (1) of the flexible structure connecting is sleeve, the front end of push rod (1) sleeve connects horizontal short sleeve (13), cross bar (11) is divided into left and right two parts and is set in short sleeve (13), the outer end of both sides cross bar (11) is connected with the clamp (10) of both sides respectively, the inner of both sides cross bar (11) connects respectively tooth bar (15), push rod (1) sleeve inner sleeve dress adjusting lever (12), the front end of adjusting lever (12) is installed gear (14), the both sides up and down of gear (14) are meshed with the tooth bar (15) of both sides cross bar (11) the inner respectively, the rear end of adjusting lever (12) is positioned at the outer back end of push rod (1) sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410489322.7A CN104207831B (en) | 2014-09-23 | 2014-09-23 | Minimally invasive conformal repositor for repositing and fixing bone blocks around joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410489322.7A CN104207831B (en) | 2014-09-23 | 2014-09-23 | Minimally invasive conformal repositor for repositing and fixing bone blocks around joints |
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| Publication Number | Publication Date |
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| CN104207831A true CN104207831A (en) | 2014-12-17 |
| CN104207831B CN104207831B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410489322.7A Active CN104207831B (en) | 2014-09-23 | 2014-09-23 | Minimally invasive conformal repositor for repositing and fixing bone blocks around joints |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105105802A (en) * | 2015-09-21 | 2015-12-02 | 徐亚东 | Surgical operation retractor |
| CN105748138A (en) * | 2014-12-26 | 2016-07-13 | 林仲可 | Anterior dislocation reduction fixator for atlantoaxial joint |
| CN106725819A (en) * | 2017-01-13 | 2017-05-31 | 中南大学湘雅三医院 | The interim fixed system in fracture region and its fixing means |
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| CN204133580U (en) * | 2014-09-23 | 2015-02-04 | 张英泽 | The conformal positor of Wicresoft that a kind of periarticular bone block that resets is also fixing |
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| CN101999923A (en) * | 2010-11-11 | 2011-04-06 | 上虞市中医院 | End plate leverage restorer for thoracic-lumbar vertebra reposition enchevillement bone-graft operation |
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| CN105748138A (en) * | 2014-12-26 | 2016-07-13 | 林仲可 | Anterior dislocation reduction fixator for atlantoaxial joint |
| CN105748138B (en) * | 2014-12-26 | 2019-09-27 | 林仲可 | Articulatio atlantoepistrophica anterior dislocation reduction fixture device |
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| CN106725819B (en) * | 2017-01-13 | 2023-08-08 | 中南大学湘雅三医院 | Temporary fracture area fixing system and fixing method thereof |
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|---|---|
| CN104207831B (en) | 2015-05-20 |
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