CN206499564U - A kind of Multifunctional infant supracondylar fracture of humerus aids in external fixation device - Google Patents

Abstract

The utility model is related to a kind of Multifunctional infant supracondylar fracture of humerus auxiliary external fixation device, belongs to medical instruments field.It is mainly made up of rotatable folding frame assembly, front side clamping plate, inner side clamping plate, outside clamping plate, connection flexible pipe.Rotatable folding frame assembly is by arm-supporting splint, rear side clamping plate, special ball pivot assembly, curved rod handle assembly are constituted, it connects arm-supporting splint and rear side clamping plate, the angle for adjusting by curved rod handle assembly and stablizing arm-supporting splint between rear side clamping plate by special ball pivot assembly.Special ball pivot assembly is made up of ball pivot seat, ball pivot bar, ball pivot head locking bolt again.Curved rod handle assembly is made up of threaded curved rod, cylinder rotational pin, Y types inserted link, 2 pieces of convex surface nuts.The utility model can be resetted to children's supracondylar fracture with auxiliary traction, fixed, demolition is convenient rapidly, prevent that valgus deformity occurs in elbow, the physiotherapy effective to fracture and auxiliary suffer from elbow and carry out functional training.

Description

A kind of Multifunctional infant supracondylar fracture of humerus aids in external fixation device

Technical field

The utility model is related to a kind of Multifunctional infant supracondylar fracture of humerus auxiliary external fixation device, belongs to medicine equipment neck Domain.

Background technology

Treatment of Humeral Supracondylar Fractures in Children is the common disease of pediatric Orthopaedics, frequently-occurring disease.Most of fracture infant can be used Fix to solve outside manipulative reduction, clamping plate.Because to correct the lateral displacement of Treatment of Humeral Supracondylar Fractures in Children, the rotation of condyles, look after The physiology top rake of supracondylar fracture of humerus, prevent the generation turned up in elbow, therefore children's supracondylar fracture is more difficult in fracture reset again Fracture.It is difficult to there is massatherapy in traditional reduction by three persons fixed form；Fixation is cumbersome；Adjust demolition clamping plate inconvenient； Cold treatment or thermotherapy effectively can not be carried out to fracture.Making originally can be with the fixed trouble cured outside traditional Chinese medical science massatherapy clamping plate Youngster is changed to open operation, actually unfortunately.The development of doctor trained in Western medicine Internal fixation technology is maked rapid progress, from AO, BO, CO ideas again by now Transformation, from dissection armor plate to locking steel plate, is fixed to dynamic from static(al) and fixes, and the outer eccentric Sui Nei centers that are fixed to of marrow of fracture are consolidated It is fixed, from the open surgery of fracture to small otch, again to MIPPO technologies fashionable for a time.And the outer fixation of thousands of years marrow of the traditional Chinese medical science Plintlet technology, almost floods in operation trend.Traditional Chinese medical science clamping plate technology only has succession, rarely has innovation.

A kind of Multifunctional infant supracondylar fracture of humerus aids in external fixation device, children's supracondylar fracture tradition can be solved one by one whole Fixed deficiency, and innovated, developed again.

The content of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art there is provided a kind of Multifunctional infant supracondylar fracture of humerus is auxiliary External fixation device is helped, Treatment of Humeral Supracondylar Fractures in Children is more easy to reset, is more fixed easily, is more easy to rehabilitation.Resetting time is reduced, is reduced saturating Depending on number of times, it is to avoid the generation for the postoperative complication that open surgery is brought.

To achieve these goals, the technical solution adopted in the utility model is：

A kind of Multifunctional infant supracondylar fracture of humerus aids in external fixation device, and it is mainly by rotatable folding frame assembly, preceding Side clamping plate, inner side clamping plate, outside clamping plate, connection flexible pipe composition.

The rotatable folding frame assembly is by arm-supporting splint, rear side clamping plate, special ball pivot assembly, curved rod handle assembly structure Into.Arm-supporting splint, back side panel are linked by special ball pivot assembly, open the scope of activities with drawing arm-supporting splint and rear side clamping plate in At 30-180 °；Curved rod handle assembly is placed in inside and outside rotatable folding frame assembly.

3 one wide two narrow ligatures are designed with arm-supporting splint, the ligature at ball pivot bar sliding support is slightly wider, and has Viscose glue is designed, and has pad pasting covering protection, makes it have adhesion and fixing function, and 2 ligatures only have fixed work without viscose glue in addition With；There is velcro 3 ligature distal ends；Arm-supporting splint is in depression cambered design, and there is ball pivot bar at rear under arm-supporting splint near-end Sliding support, and arch hole is provided with ball pivot bar sliding support, to place ball pivot bar so that ball pivot bar is slided with respect to ball pivot bar Bearing slidably but can not rotate, and there is ball pivot rod lock bolt at ball pivot bar sliding support rear；There is horizontal stroke at rear in the middle of arm-supporting splint Pass through the cylinder rotational pin via design of supporting plate.

Rear side clamping plate is characterized in that hypomere has about 30 ° forward of inclination angle design, and front sees that rear side clamping plate lower end is in blunt circle Shape, ball pivot seat is at the lower end rear of rear side clamping plate；Rear side clamping plate is slightly long compared with front side clamping plate, and folder is traversed at rear in the middle of rear side clamping plate The Y type inserted link via designs of plate.

Special ball pivot assembly is made up of ball pivot seat, ball pivot bar, ball pivot head lock screw.The nearly ball pivot head section of ball pivot bar with it is straight Section bends to 30 ° of angle, and certain angle is being constituted with the arm-supporting splint and rear side clamping plate that reduce rotatable folding frame assembly When the required anglec of rotation, so as to realize the composition that increase arm-supporting splint and rear side clamping plate are reached in finite spatial extent Angular range, the need for adapting to different patients.Ball pivot bar nearly bulb section cross sectional shape is sector, when opening rotatable completely During folding stand assembly, fan-shaped sharp corner can be mutually engaged with the angle-style incisura of ball pivot seat oblong opening hypomere, realize forearm Supporting plate and rear side clamping plate being engaged and being connected the function being integral by ball pivot bar in special ball pivot assembly and ball pivot seat.Ball pivot Bar flat segments are arch, and flat segments can not slidably rotate, ball pivot bar in the ball pivot bar sliding support of arm-supporting splint The ball pivot rod lock bolt at sliding support rear can be locked to ball pivot bar.

There is special shape opening on ball pivot seat, opening shape is constituted by three sections, hypomere is wedge angle section, with the nearly bulb of ball pivot bar Fan-shaped wedge angle be fully engaged against so that stuck rotate to the position when opening the rear side clamping plate of rotatable folding frame assembly completely Ball pivot bar；Stage casing is straightway, and this section of A/F is 1.5~2 times of ball pivot shank diameter, to enable ball pivot bar in ball pivot Swing, that is, realized when stablizing arm-supporting splint in seat, rear side clamping plate can the inside and outside function of swinging 15 °~30 ° of inclination；On Section is arc section.The left and right sides of ball pivot seat is provided with screwed hole, to place ball pivot head lock screw, realizes arm-supporting splint with after Locking after the clamping plate angle satisfaction of side to ball pivot head.In addition, the rear side of ball pivot seat is provided with non-slip hook, front side clamping plate distal end can be hooked Cord.

Curved rod handle assembly is by curved rod, cylinder rotational pin, Y type inserted links, 2 pieces of convex surface nut compositions.Cylinder is rotated Pin is inserted into the cylinder rotational pin through hole of arm-supporting splint, it is possible to rotated；Y type inserted links are inserted into the Y type inserted links of rear side clamping plate It is also rotatable in through hole；Curved rod is linked together by rivet with cylinder rotational pin, and curved rod can using rivet as Rotary shaft is rotated；Y type inserted links upper end takes the shape of the letter U, and curved rod can be caught in the U-lag of Y type inserted links upper end；Have on curved rod Curved rod, Y type inserted links upper end can be secured firmly to by 2 pieces of convex surface nuts by Design of Screw Thread；Curved rod assembly passes through circle Post rotational pin, cylinder rotational pin through hole, Y type inserted links, Y type inserted links through hole pair determines that the arm-supporting splint after angle and rear side clamping plate rise To fixed and stabilization.Curved rod handle assembly can be arranged on the inner side or outgoing of rotatable folding frame assembly for totally 2 sets, can not Point or so.

There is about 30 ° forward of inclination angle design described front side clamping plate distal end, and clamping plate distal end in front side is in blunt round, front side clamping plate 4 groups of cords that one is long and the other is short are above fixed with, cord has certain elasticity, and the cord at front side clamping plate two ends is pressed from both sides close proximity to front side Front plate is divided into three equal parts by plate two ends, middle 2 groups of cords.

Described inner side clamping plate is characterized in that distal end is slightly in elliptic design facing forward.

Described outside clamping plate is characterized in that distal end is slightly in elliptic design facing forward.

Described arm-supporting splint, front side clamping plate, inner side clamping plate, rear side clamping plate, outside clamping plate is characterized in that and patient's limb Body contact surface is provided with one layer of soft cotton layer；Front side clamping plate, inner side clamping plate, rear side clamping plate, outside clamping plate in its base layer, if Liquid circulation line is put, the top upper end both sides of four pieces of clamping plates are respectively disposed with inlet and leakage fluid dram, by connecting flexible pipe Front side clamping plate, inner side clamping plate, rear side clamping plate, the inlet of outside clamping plate and leakage fluid dram can be sequentially connected with；Make four pieces of clamping plate bases The pipe-line system of liquid circulation line connection one closing of composition in body layer, to access cold night or hydrothermal solution.

The utility model compared with prior art, with advantages below：1. an assistive device, which has, is utilizing arm-supporting splint 3 ligatures fix forearm and forearm and arm-supporting splint is turned into an entirety, rear side clamping plate is opened completely because special ball pivot is total Into effect can to the supracondylar fracture of humerus broken ends of fractured bone carry out counterextension, first assign condyle of humerus on outer strap with auxiliary traction Function.Used 2. rotatable folding frame assembly spy provides under toggle position, coordinate bone fracture gimmick to carry out bone fracture to fracture site Manipulative reduction, can look after humerus condyles top rake, fracture is more easy to success.Before 3. supracondylar fracture of humerus is utilized after resetting successfully The design of the 4 groups of cords and the non-slip hook of special ball pivot that are carried on the clamping plate of side make it is fixed more convenient, evenly, more firm, more section Learn, adjustment clamping plate is easier.4. prevent cubitus varus or elbow by placing turriform pad or trapezoidal pad in medial and lateral clamping plate distal end Valgus deformity occurs.5. the cold treatment of fracture progress at initial stage, later stage are entered by designing the liquid circulation line in clamping plate base layer Row warm physical therapy.Elbow joint carried out in arm-supporting splint and rear side cleat design curved rod handle assembly 6. the later stage enables Or the multiple function such as the bent or functional rehabilitation exercise stretched.

Brief description of the drawings

Fig. 1 is that a kind of partial cutaway structure of Multifunctional infant supracondylar fracture of humerus auxiliary external fixation device of the utility model is shown It is intended to.

Fig. 2 be Figure 1A to structural representation.

Fig. 3 be Figure 1B to structural representation.

Fig. 4 be Fig. 1 C to structural representation.

Fig. 5 is the three dimensional structure diagram of 4 ball pivots seat in Fig. 1.

Fig. 6 is the structural representation of 18Y type inserted links in Fig. 1.

Fig. 7 is the structural representation of 36 connection flexible pipes in Fig. 1.

In figure：1. outside clamping plate liquid circulation line, 2. outside clamping plates, 3. rear side clamping plate liquid circulation lines, 4. ball pivots Seat, 5. ball pivot bars, 6. ball pivot rod lock bolts, 7. ball pivot bar sliding supports, 8. wide ligatures, 9. arm-supporting splints, 10. arcs connect Bar, 11. cylinder rotational pin through holes, 12. cylinder rotational pins, 13. rivets, 14. curved rods, 15. narrow ligatures, 16. narrow ligatures, 17. convex surface nut, 18.Y type inserted links, 19. convex surface nuts, 20.Y type inserted link through holes, 21. rear side clamping plates, 22. inner side clamping plate liquid Circulation line, 23. inner side clamping plates, 24. front side clamping plate liquid circulation lines, 25. front side clamping plates, 26. cords, 27. cords, 28. Cord, 29. cords, 30. rivets, 31. cylinder rotational pins, 32. ball pivot head lock screws, 33. ball pivot head lock screws, 34.Y types Inserted link, 35. convex surface nuts, 36. connection flexible pipes.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this Utility model, is not used to limit the utility model patent.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, a kind of Multifunctional infant supracondylar fracture of humerus auxiliary of the utility model is outer Fixed apparatus, it is mainly by rotatable folding frame assembly, front side clamping plate (25), inner side clamping plate (23), outside clamping plate (2), connection Flexible pipe (36) is constituted.

A kind of Multifunctional infant supracondylar fracture of humerus aids in external fixation device, and described rotatable folding frame assembly is by forearm Supporting plate (9), rear side clamping plate (21), special ball pivot assembly, curved rod handle assembly are constituted；Arm-supporting splint (9), rear side clamping plate (21) Linked, opened with the scope of activities for drawing arm-supporting splint (9) and rear side clamping plate (21) at 30-180 ° by special ball pivot assembly, In the range of elbow joint is fixed on extreme flexing and is stretched.Curved rod handle assembly is placed in rotatable folding frame assembly Inside and outside.

3 one wide two narrow ligatures (8,15,16) are designed with the arm-supporting splint (9), close to ball pivot bar sliding support (7) ligature (8) at place is slightly wider, and has viscose glue (Q) design, and has pad pasting covering protection, makes it have adhesion and fixing function, separately Outer 2 ligatures (15,16) only have fixation without viscose glue；There are velcro (L, M, N), 3 in 3 ligature (8,15,16) distal ends Root ligature (8,15,16) winds forearm and forearm is fixed by velcro；The patch of wide ligature (8) is torn before reduction Viscose glue (Q) on film, wide ligature (8) can be with skin close adhesion, in addition other 2 ligatures (15,16) fixation, before making Arm firmly fixes integral and non-slip with arm-supporting splint (9), is conducive to total using rotatable folding frame under elbow flexion position The paired supracondylar fracture of humerus broken ends of fractured bone carries out counterextension and appropriateness rotation.Film of replying to the topic is pasted after reduction success, wide ligature (8) only has Fixation, can prevent the constraint of ligature (8) and aggravate the oedema of forearm.Arm-supporting splint (9) makes forearm in depression cambered design Contact more comfortable with supporting plate (9).There is ball pivot bar sliding support (7) at rear under arm-supporting splint (9) near-end, in have arch hole, accommodate Ball pivot bar (5), and can slide but can not rotate in hole, there is ball pivot rod lock bolt (6) at ball pivot bar sliding support (7) rear. On rear side of rear side clamping plate (21) and upper arm after docile, lockable ball pivot rod lock bolt (6).There is rear in the middle of arm-supporting splint (9) Traverse cylinder rotational pin through hole (11) design of supporting plate.

Described rear side clamping plate (21) distally has about 30 ° forward of inclination angle design, meets the life of supracondylar fracture of humerus forward Top rake is managed, front sees that rear side clamping plate hypomere is in blunt round；Ball pivot seat (4) is at the lower end rear of rear side clamping plate (21)；Rear side is pressed from both sides Plate (21) is slightly long compared with front side clamping plate (25), can prevent cord (26,29) from being slipped from rear side clamping plate (21), in the middle of rear side clamping plate (21) There is Y type inserted link through holes (20) design for traversing clamping plate at rear.

Special ball pivot assembly is made up of ball pivot seat (4), ball pivot bar (5), ball pivot head lock screw (32,33) again.Ball pivot bar (5) nearly ball pivot head section bends to 30 ° of angle with flat segments, with reduce rotatable folding frame assembly arm-supporting splint (9) and after Side clamping plate (21) anglec of rotation required when certain angle is constituted, increasing is reached so as to realize in finite spatial extent Plus the composition angular range of arm-supporting splint (9) and rear side clamping plate (21), the need for adapting to different patients.Ball pivot bar (5) is near Bulb section cross sectional shape is sector, when opening rotatable folding frame assembly completely, and fan-shaped sharp corner can be open with ball pivot seat (4) The angle-style incisura of hypomere is mutually engaged, and is realized arm-supporting splint (9) and rear side clamping plate (21) and is passed through ball pivot bar in special ball pivot assembly With being engaged and the connected function being integral for ball pivot seat；Ball pivot bar (5) flat segments are arch, and flat segments are slided mounted in ball pivot bar It in bearing (7), and can not slidably rotate, after rear side clamping plate (21) and upper arm rear fit satisfaction, lock ball pivot bar Ball pivot bar (5), can be relatively fixed by the ball pivot rod lock bolt (6) at sliding support (7) rear with arm-supporting splint (9).

There is special shape opening on ball pivot seat (4), opening shape is constituted by three sections, hypomere is wedge angle section, and it cuts for angle-style Mark, is fully engaged against so that opening the rear side clamping plate of rotatable folding frame assembly with the fan-shaped wedge angle of the nearly bulb of ball pivot bar (5) (21) the stuck ball pivot bar (5) for rotating to position when, during reduction by forearm and arm-supporting splint (9) it is fixed it is safe after, in elbow in the wrong The next hand in position holds forearm and arm-supporting splint (9), and rear side clamping plate (21) distal end is held on the other hand, can now be had to fracture site Effect traction, appropriateness rotation, and skidding is occurred without, Treatment of Humeral Supracondylar Fractures in Children cuttage, rotation and lateral displacement are easily corrected, while according to The top rake of supracondylar fracture of humerus is turned round and look at, the external fixation device is assigned first with the function of auxiliary traction.Coordinate bone under toggle position Hinder gimmick and bone fracture manipulative reduction is carried out to fracture site, looked after the physiology top rake of humerus condyles, fracture is more easy to success.Remove Outside this, such as rear side clamping plate (21), which blocks inconvenience reset, can also remove rear side clamping plate (21), and condyles pair are held under elbow flexion position Supracondylar fracture of humerus carries out reduction, and rear side clamping plate (21) is laid after applying art and finishing, and embodies the flexibility and accommodation of the apparatus Property.Stage casing is straightway, and this section of A/F is 1.5~2 times of ball pivot bar (5) diameter, to cause when stablizing arm-supporting splint, Ball pivot bar (5) can swing in ball pivot seat (4), that is, realizing rear side clamping plate (21), there is inside and outside swing to tilt 15 °~30 ° Function, one when can be achieved Treatment of Humeral Supracondylar Fractures in Children replacement and fixation no matter left side fracture or right side fracture, a set of apparatus It can fix and use；Two can under elbow flexion position rear side clamping plate (21) and more preferable docile on rear side of upper arm, more small displacement fixes, The requirement of satisfaction and 15 °~30 ° carrying angles of compensatory elbow joint, the physilogical characteristics of elbow joint are more met using the apparatus.Epimere is Arc section.The left and right sides of ball pivot seat (4) is provided with screwed hole, to place ball pivot head lock screw (32,33), realizes forearm holder Plate (9) and the locking after the satisfaction of rear side clamping plate (21) angle to ball pivot head.In addition, the rear side of ball pivot seat (4) is provided with non-slip hook (P)；The cord (29) of front side clamping plate (25) distal end can be hooked, playing prevents cord from sliding, cord can be achieved to bone on condyle of humerus The more firm fixation of folding.

Curved rod handle assembly is by curved rod (10), cylinder rotational pin (12), Y types inserted link (18), 2 pieces of convex surface nuts (17,19) constitute.Cylinder rotational pin (12) is inserted into the cylinder rotational pin through hole (11) of arm-supporting splint (9), it is possible to rotated； Y types inserted link (18) is inserted into the Y type inserted link through holes (20) of rear side clamping plate (21), and also rotatable, curved rod (10) passes through riveting Nail (13) links together with cylinder rotational pin (12), and curved rod (10) can be that rotary shaft is revolved with rivet (13) Turn；Y types inserted link (18) upper end takes the shape of the letter U, and curved rod (10) can be caught in the U-lag of Y types inserted link (18) upper end, curved rod (10) On have Design of Screw Thread, be fixed together by 2 pieces of convex surface nuts (17,19) and Y types inserted link (18)；Curved rod (10) passes through circle Post rotational pin (12), cylinder rotational pin through hole (11), Y types inserted link (18), Y type inserted link through holes (20) pair determine the forearm after angle Supporting plate (9) and rear side clamping plate (21) play fixation.Rotation of the cylinder rotational pin (12) in cylinder rotational pin through hole (11) The rotation that is inserted in Y types inserted link (18) in Y type inserted link through holes (20) so that curved rod (10) adapt to arm-supporting splint (9) and after Different angles between side clamping plate (21), which are fixed, to be required.Curved rod handle assembly can be arranged on rotatable folding frame assembly for totally 2 sets Inner side or outgoing, can be regardless of left and right.Fracture curved rod at initial stage handle assembly has been mainly stable rotatable folding frame assembly and made With not causing fracture redisplacement；It can pass through the upper 2 pieces of convex surface nuts of interior outside curved rod (10) after later stage fracture site is stable The advance and retreat of (17,19) realize rear side clamping plate (21) and arm-supporting splint (9) or close, reach passive to fixed elbow joint or stretch Or bent functional training, make fixation synchronous with rehabilitation, this is outer solid for a kind of novel and multifunctional Treatment of Humeral Supracondylar Fractures in Children auxiliary Determine the important innovations point of apparatus.

Described front side clamping plate (25) distally has about 30 ° forward of inclination angle design, meets the life of supracondylar fracture of humerus forward Top rake is managed, front side clamping plate (25) is in distally to be fixed with 4 groups of cords that one is long and the other is short on front side of blunt round, front side clamping plate (25), long Front side clamping plate (25), inner side clamping plate (23), rear side clamping plate (21), outside clamping plate (2) can be bundled in the surrounding of fracture limbs by rope, Short rope plays a part of auxiliary long rope and knotted, and it is achievable quick to limbs that front side clamping plate (25) carries cord (26,27,28,29) Fixation.Cord (26,27,28,29) has certain elasticity, can prevent the generation of compartment syndrome.Front side clamping plate (25) Front side clamping plate (25) is divided into third by the cord (26,29) at two ends close proximity to front side clamping plate (25) two, middle 2 groups of cords Part, make supracondylar fracture of humerus fix stress evenly, it is more firm.

Described inner side clamping plate (23) distal end is in slightly elliptic design facing forward, can meet inner side clamping plate (23) and meet from side The anatomical physiology top rake of humerus condyles forward.

Described outside clamping plate (2) distal end is in slightly elliptic design facing forward, can meet inner side clamping plate (2) and meet the upper arm from side The anatomical physiology top rake of bone condyles forward.

Described arm-supporting splint (9), front side clamping plate (25), inner side clamping plate (23), rear side clamping plate (21), outside clamping plate (2) Surface is contacted with limbs of patient and is provided with one layer of soft cotton layer, increase suffering limb and clamping plate contact comfort, and repressive burst can be prevented The generation of ulcer.Front side clamping plate (25), inner side clamping plate (23), rear side clamping plate (21), outside clamping plate (2) are set in its base layer Liquid circulation line (24,22,3,1), the top layout of four pieces of clamping plates has inlet and leakage fluid dram, can be by by connecting flexible pipe Front side clamping plate (25), inner side clamping plate (23), rear side clamping plate (21), the liquid circulation line (24,22,3,1) of outside clamping plate (2) connect The pipe-line system of one closing of composition is connect, the cold treatment to affected part can be achieved, to reach to affected part in the iced liquid of fracture instillation at initial stage Detumescence, hemostasis, analgesic effect.Later stage instillation warm liquid, can be achieved the thermotherapy to affected part, there is improvement local blood circulation, Promote union effect.Clinical application proves that, this is more traditional to carry out cold treatment or thermotherapy is more effective outside clamping plate.Soft silk floss Layer can effectively protect skin not by cold injury or scald.

A kind of Multifunctional infant supracondylar fracture of humerus auxiliary external fixation device spy provides one kind can be under toggle position to children Supracondylar fracture of humerus auxiliary traction resets, effectively fixation, demolition conveniently, by outside clamping plate inside distally place turriform pad rapidly Or cold treatment and the thermotherapy in later stage, profit of the trapezoidal pad to prevent cubitus varus or Cubitus Valgus Deformity from occurring, effective to fracture initial stage Suffer from elbow with curved rod handle auxiliary and carry out functional training, be worth clinically wideling popularize.

Claims (7)

1. a kind of Multifunctional infant supracondylar fracture of humerus aids in external fixation device, be by rotatable folding frame assembly, front side clamping plate, Inner side clamping plate, outside clamping plate and connection flexible pipe composition, it is characterised in that：The rotatable folding frame assembly by arm-supporting splint (9), Rear side clamping plate (21), special ball pivot assembly, curved rod handle assembly are constituted；Arm-supporting splint (9), rear side clamping plate (21) use special ball Assembly connection is cut with scissors, arm-supporting splint (9) is opened or draw in the scope of activities of rear side clamping plate (21) at 30-180 °；Curved rod handle Assembly is placed in inside and outside rotatable folding frame assembly；Rear side clamping plate (21) distally has about 30 ° forward of inclination angle design, just Face sees that rear side clamping plate (21) lower end is in blunt round；Ball pivot seat (4) at the lower end rear of rear side clamping plate (21), rear side clamping plate (21) compared with Front side clamping plate (25) is slightly long, and rear is provided with the Y type inserted link through holes (20) for traversing clamping plate in the middle of rear side clamping plate (21)；It is above-mentioned special Ball pivot assembly is made up of ball pivot seat (4), ball pivot bar (5), ball pivot head lock screw (32,33)；The nearly bulb section of ball pivot bar (5) with Flat segments bend to 30 ° of angle, and the nearly bulb section shape of cross section of ball pivot bar (5) is sector, fan-shaped sharp corner and ball pivot seat (4) The angle-style incisura of opening hypomere is mutually engaged, and ball pivot bar (5) flat segments are arch, and flat segments are mounted in the ball pivot bar of arm-supporting splint (9) In sliding support (7), and slidably but it can not rotate；There is special shape opening on ball pivot seat (4), opening shape is by three sections of structures Into hypomere is that wedge angle section is angle-style incisura, is fully engaged against with the fan-shaped wedge angle of the nearly bulb of ball pivot bar (5), stage casing is straightway, should Section A/F is 1.5~2 times of ball pivot bar (5) diameter, to cause ball pivot bar (5) inside and outside movement can incline in ball pivot seat (4) Oblique 15 °~30 °, epimere is arc section；The left and right sides of ball pivot seat (4) is provided with screwed hole, to place ball pivot head lock screw (32、33)；The rear side of ball pivot seat (4) is provided with non-slip hook (P).

2. Multifunctional infant supracondylar fracture of humerus according to claim 1 aids in external fixation device, it is characterised in that：It is described Three one wide two narrow ligatures (8,15,16) are provided with arm-supporting splint (9), the ligature close to ball pivot bar sliding support (7) place (8) it is slightly wider, and viscose glue (Q) is provided with, viscose glue (Q) is provided with pad pasting covering protection, and another two ligatures (15,16) set without viscose glue Put；Three ligatures (8,15,16) are distally provided with velcro (L, M, N)；Arm-supporting splint (9) is set in depression arc, preceding Rear is provided with ball pivot bar sliding support (7), ball pivot bar sliding support (7) under arm blaster (9) near-end accommodates provided with arch hole Ball pivot bar (5), ball pivot bar (5) can be slided in arch hole, and ball pivot bar sliding support (7) rear is provided with ball pivot rod lock bolt (6)；Rear is provided with the cylinder rotational pin through hole (11) for traversing arm-supporting splint in the middle of arm-supporting splint (9).

3. Multifunctional infant supracondylar fracture of humerus according to claim 1 or 2 aids in external fixation device, it is characterised in that： The curved rod handle assembly be by curved rod (10), cylinder rotational pin (12), Y types inserted link (18) and convex surface nut (17, 19) constitute；Cylinder rotational pin (12) is inserted into the cylinder rotational pin through hole (11) of arm-supporting splint (9), it is possible to rotated；Y types Inserted link (18) is inserted into the Y type inserted link through holes (20) of rear side clamping plate (21), can be rotated；Curved rod (10) rivet (13) Linked together with cylinder rotational pin (12), and curved rod (10) can be that rotary shaft is rotated along rivet (13)；Y types are inserted Bar (18) upper end is taken the shape of the letter U, and curved rod (10) can be caught in the U-lag of Y types inserted link (18) upper end, and curved rod is provided with (10) Curved rod (10), is secured firmly on Y types inserted link (18) by screw thread with two pieces of convex surface nuts (17,19)；Curved rod handle is total , can be regardless of left and right into two sets of inner sides for being arranged on rotatable folding frame assembly or outgoing are set.

4. Multifunctional infant supracondylar fracture of humerus according to claim 1 aids in external fixation device, it is characterised in that：It is described Front side clamping plate (25) is distally provided with about 30 ° forward of inclination angle, and front side clamping plate (25) is in distally blunt round；On front side of front side clamping plate (25) Four groups of cords that one is long and the other is short are fixed with, four groups of cords are respectively provided with certain elasticity；Two groups of cords at front side clamping plate (25) two ends (26,29) are positioned on front side close proximity to the two ends of front side clamping plate (25), the middle two groups of cords (27,28) of front side clamping plate (25) At clamping plate (25) three equal parts.

5. Multifunctional infant supracondylar fracture of humerus according to claim 1 aids in external fixation device, it is characterised in that：It is described Inner side clamping plate (23) is distally set to slightly in ellipse forward.

6. Multifunctional infant supracondylar fracture of humerus according to claim 1 aids in external fixation device, it is characterised in that：It is described Outside clamping plate (2) is distally set to slightly in ellipse forward.

7. the Multifunctional infant supracondylar fracture of humerus auxiliary external fixator according to claim 1 or 2 or 4 or 5 or 6 Tool, it is characterised in that：Described arm-supporting splint (9), front side clamping plate (25), inner side clamping plate (23), rear side clamping plate (21), outside folder Plate (2) contacts surface with limbs of patient and is provided with one layer of soft cotton layer；Its front side clamping plate (25), inner side clamping plate (23), rear side clamping plate (21) and outside clamping plate (2) is in its base layer, there is provided liquid circulation line (24,22,3,1), the top of above-mentioned four pieces of clamping plates Portion's arrangement is provided with inlet and leakage fluid dram (D-E, F-G, H-I, J-K)；Flexible pipe (36) is connected to press from both sides front side clamping plate (25), inner side Plate (23), the inlet of rear side clamping plate (21) and outside clamping plate (2) and leakage fluid dram (D-K) are attached, and make four pieces of clamping plate matrixes The pipe-line system of liquid circulation line (24,22,3,1) connection one closing of composition in layer, to access cold night or hydrothermal solution.