CN103445839A - Ankle multidimensional regulation-control orthosis - Google Patents

Abstract

An ankle multidimensional regulation-control orthosis is formed by a bone fixing support, steel needle fixing clamps connected onto the bone fixing support and steel needles clamped in the steel needle fixing clamps; the bone fixing support comprises a far-end U-shaped hole ring arranged at the calcaneus, a near end hole full ring arranged at the middle section or middle upper section of a tibia, and a plurality of fast extending lengthening rods which are connected between the far end U-shaped hole ring and the near end hole full ring; each fast extending lengthening rod comprises a thread rod, an inner rod sleeve and an outer rod sleeve; a pressure controller is arranged between the upper end part of the inner rod sleeve and the thread rod; a locking joint is arranged between the upper end part of the outer rod sleeve and the inner rod sleeve. The ankle multidimensional regulation-control orthosis can perform treatment tasks such as traction, resetting, fixing and deformity correcting on the fracture or deformity of the angle in a multidimensional space, the treatment on multiple bone diseases of the angle can be realized, particularly, flexible correcting can be realized on rotary deformity, strephexopodia and strephenopodia, and the orthosis plays an important role in foot correcting aspect and has obvious advantages.

Description

Ankle joint multi-value regulation and control orthosis

Technical field

The present invention relates to a kind of bone external fixator, particularly a kind ofly treat the ankle multi-value regulation and control orthosis that ankle complicated fracture and ankle malformation are used.

Background technology

Ankle malformation, definable is divided into the deformities such as angulation, rotation, displacement and length clinically; From the definition of inferior dimension space, be multidimensional time space deformity, as two dimension, three-dimensional, four-dimensional or more times dimension aspect extremely.Rotation and displacement deformity, with the measurement unit of angle; Displacement and length deformity are all the displacement deformities, and the distance of take is measurement unit.Ankle is orthopedic is exactly by changing the angle displacement of lopsided angulation, makes it parallel or vertical with normal anatomical axis.Therefore, the rectification of ankle malformation, can apply the multidimensional control principle and be corrected.The angulation deformity of ipsilateral is not two dimension deformity, angulation with rotate compound malformation, be three-dimensional deformity, in Horse hoof, turn over, bone and soft tissue symphysic teratism etc., be that the four-dimension is lopsided.The center of rotation of ankle malformation is different from the deformity in backbone or other joint, except monoplane, single or compound malformation, and also has many planes, the complex deformity such as multi-direction.But deformity of different nature, all can apply many planes and multidirectional rectification control principle is corrected.

The bone external fixator of existing rectification ankle malformation is generally to adopt Ilizarov ring type external fixator, Bastiani unilateral external fixator or AO block form external fixator, these bone external fixators have the following disadvantages: 1, Ilizarov external fixator complex structure heaviness, there is no quick Telescopic and multidimensional orthopaedic function, lack motility, operating difficulties, be unfavorable for reconstruction; 2,, there are the shortcomings such as tibia is heavy, function is simple, the draw point diameter is thick in Bastiani unilateral external fixator and AO block form external fixator, is difficult to meet the treatment needs of ankle and foot complicated fracture or malformation correction.

Summary of the invention

The purpose of this invention is to provide a kind of ankle joint multi-value regulation and control orthosis, the bone external fixator complex structure, function that solve traditional treatment ankle complicated fracture and ankle malformation is simple, inconvenient operation, be difficult to meet the technical problem of the treatment needs of ankle and foot complicated fracture or correcting abnormality of ankle.

For achieving the above object, the present invention adopts following technical scheme: a kind of ankle joint multi-value regulation and control orthosis, by the bone fixed support, be connected to the steel needle fixing clamp on the bone fixed support and the draw point that is clipped in steel needle fixing clamp forms, it is characterized in that: described bone fixed support comprise the far-end U-shaped hole ring that is arranged on the calcaneus place, be arranged on the near-end hole loopful at middle tibia or middle epimere place and be connected to far-end U-shaped hole ring and near-end hole loopful between some quick lengthening bars.

Described quick lengthening bar includes threaded rod, interior bar cover and outer bar cover, described threaded rod from top to bottom is inserted in interior bar cover, described interior bar cover from top to bottom is inserted in outer bar cover, and the lower end of described outer bar cover is provided with multidirectional articulation joint, and multidirectional articulation joint is provided with threaded connector.

The upper end of described interior bar cover is provided with flanging, and be provided with pressure controller between the upper end of interior bar cover and threaded rod, described pressure controller controls cover by adjusting sleeve, pressure and Compress Spring forms, the upper end of described adjusting sleeve is threaded with threaded rod, the bottom of adjusting sleeve is controlled external threading with pressure and is connected, described pressure is controlled the interior bar that cover is movably set in the flanging downside and is put, on the threaded rod between the flanging that the upper end that described Compress Spring is enclosed within adjusting sleeve and interior bar overlap.

It is uncovered that the medial wall, upper end of described outer bar cover is provided with taper, the lateral wall, upper end of outer bar cover is provided with external thread section, and be provided with lock-on connection between the upper end of outer bar cover and interior bar cover, described lock-on connection is comprised of taper elastic ring and locking nut, described locking nut is by the be threaded upper end of the cover of bar outside of external thread section, described taper elastic ring be inserted in taper uncovered in, be clipped between interior bar cover and outer bar cover, and the fixing of the upper end of taper elastic ring is on the upper end of locking nut.

Threaded rod in described quick lengthening bar hingedly is connected with near-end hole loopful with the joint device of locking function by having, and the multidirectional articulation joint in the lengthening bar is connected with far-end U-shaped hole ring fast.

Can be provided with bar cover pad between the medial wall of the lateral wall, bottom of described interior bar cover and outer bar cover.

Can be provided with union joint on the medial surface of described bar cover pad, described interior bar puts and is provided with the locating hole corresponding with union joint, and bar cover pad is fixed on interior bar and puts by union joint is relative with locating hole.

Described multidirectional articulation joint can by Connection Block, hinged otic placode, in pin, axle sleeve and bearing pin form, wherein hinged otic placode is arranged on the lower end of outer bar cover, axle sleeve and bearing pin are articulated and connected on hinged otic placode by middle pin, Connection Block is articulated and connected again on bearing pin, and described threaded connector is arranged on Connection Block.

Described threaded connector can be out the internal thread hole on Connection Block.

Described bone fixed support can also comprise by the adjustable screw rod be connected on near-end hole loopful of up-down adjustment nut, on described screw rod, cover has draw point pad and draw point pressure pad, and draw point pad and draw point pressure pad are connected on screw rod by upper and lower adjusting nut is adjustable, between draw point pad and draw point pressure pad, accompany half pin.

Can be connected with four quick lengthening bars between described far-end U-shaped hole ring and near-end hole loopful.

All can be carved with angle scale on described far-end U-shaped hole ring and near-end hole loopful.

Angle scale on described far-end U-shaped hole ring can be the tolerance sign of 180 ° consisted of the angle scale of two 0 ° to 90 °, and the angle scale of two 0 ° to 90 ° be take the mid point of U-shaped ring as 0 ° and launched the sign angle index to both sides.

Angle scale on described near-end hole loopful can be the tolerance sign of 360 ° consisted of the angle scale of two 0 ° to 180 °, any point that the angle scale of two 0 ° to 180 ° be take on loopful as 0 °, launch the sign angle index to both sides.

Compared with prior art the present invention has following characteristics and beneficial effect.

The present invention is a kind of new outer fixture with several functions, can implement drawing-off fixing, the malformation correction treatment task that resets to the fracture of ankle and foot or deformity in hyperspace.

The present invention has adopted a U-loop and a loopful, has adopted quick lengthening bar simultaneously and has had scheme hinged and that joint device locking function matches, has multi-direction orthopedic fixed function; Described quick lengthening bar can be realized axial quick flexible and slow the prolongation or pressurization function, quick locking at any time; Described have hinged and joint device locking function and also can implement effectively to be locked after orthopedic; Described far-end U-shaped hole ring, for threading a needle at calcaneus, can make ankle and distal tibial realize stable fixing; Described near-end hole loopful is positioned at proximal tibia, with screw thread half pin, realizes that near-end fixes.

It is controlled that the present invention is adjustable, applied widely, but flexible Application, can meet the treatment of ankle various osteonosus, especially be applicable to the tibial rotation deformity is carried out to orthopaedic treatment: 1, the rotation deformity of tibia is as be positioned at the near-end of tibial tubercle, should select the proximal tibia osteotomy, as rotation deformity is positioned at the far-end of tibial tubercle, should select the tibial tubercle far-end to implement osteotomy orthopedic; 2, the osteotomy mode of rotation deformity, select to get final product with key vertical plane osteotomy; If 3 rotation deformities are extended simultaneously, can, after appropriateness extends, implement the rectification of rotation deformity; When 4, the present invention is rotated malformation correction, can immediately rotate rectification by regulation and control hole ring, by converting the position of quick lengthening bar on the hole ring, immediately correct, when orthopedic, loosen the set bolt that the fixing quick lengthening bar on far-end U-shaped hole ring and near-end hole loopful is used, counter-rotating far-end U-shaped hole ring and near-end hole loopful, after malformation correction, fastening set bolt again.

The present invention is except carrying out orthopaedic treatment to the tibial rotation deformity, to strephexopodia and strephenopodia, also can realize orthopedic flexibly, so brought into play significant role at foot aspect orthopedic and rotation deformity, with the obvious advantage.

The present invention in use, can carry out necessary adjustment (structure of the present invention being carried out to necessary adjustment) to quick lengthening bar according to concrete therapeutic purposes, and the increase and decrease change, so that more meet the treatment requirement.

Features simple structure dexterity of the present invention, meet topology and therapeutics requirement, has characteristics easy to operate and safe.

After the present invention is installed on suffering limb, less to the motion effects in ankle joint, so allow limbs to bear a heavy burden and functional training.

After having used the present invention, operation technique can complete under Wicresoft or noinvasive condition, avoids to greatest extent the destruction of local soft tissue damage and blood fortune, is conducive to promote union of fracture and reconstruction, so had advantages of that curative effect is high, complication is low.

During operation, according to the needs of different cases, the present invention is placed on orthopedic bone, and fixes with draw point, once import after the bone external fixator needs that can meet whole-course treatment.

The present invention can make mechanical energy (mechanical environment) and bioenergy (tissue regeneration) have the good compatibility (reasonability of Mechanobiology environment), and can meet fracture early implementation strong flexible fastening, later stage fixing, that provide axially mid-term and combined stress stimulates provides balance fixing requirement.

The present invention has carried out new innovation to the mechanics effect of bone external fixator, has dynamic elasticity drawing-off function, has the structure of complying with biological requirement, makes the bone external fixator bionic boundary of marching toward become possibility, for implementing cybernetics, provides technique guarantee.

The present invention has incorporated the structural element of more Ilizarov external fixator, not only in rationale, there is again new breakthrough the aspects such as apparatus innovation, technical specification, clinical practice and treatment theory, substantially realize theoretical system, apparatus seriation, regularized operation, criterion of therapeutical effect, formed new bone External technique system.

Each member in the present invention is compared with existing Combined bone external-fixer, when keeping original member characteristics, carried out again larger improvement and bring new ideas, increased new function, the improvement and bring new ideas of each member is newly promoted the performance of bone external fixator, function is science, advanced person and practical more, has met the needs of multiple case.Specific as follows: 1, the lengthening bar has drawing-off, pressurization function fast, in therapeutic process, according to the treatment requirement, can implement elasticity drawing-off, pressurization, flexible fastening (regulation and control elasticity) and adaptability rigidity by pressure controller and fix.2, the lengthening bar can stretch fast, clockwise or rotate counterclockwise lock-on connection 360 degree, the lengthening bar can increase or shorten fast, solved the difficult problem that the fixing rigidity of bone external fixator can not change, fixed so can require implement the adaptability balance that gap is zero early stage strongly fixes, mid-term, gap was 1～2mm flexible fastening and later stage gap are 3～5mm according to treatment at therapeutic process.3, the lengthening bar is the important component of implementing overall configuration and function combinations fast, can carry out the optimum organization of configuration, increase practicality and the dexterity of configuration, can require to implement drawing-off, pressurization, regulation and control elasticity and adaptability rigidity according to treatment at therapeutic process fixes, embodied highlightedly the bionics function, improve the compatibility of mechanical energy and bioenergy, met the requirement of regeneration reconstruction and control theory, guaranteed curative effect.

Quick lengthening bar in the present invention has quick-expansion, slowly extend and three kinds of functions of dynamic elasticity drawing-off, there is adjusting operation convenient, configuration is optimized, practical, dexterous characteristics, more importantly, in the overall process for the treatment of, early, in, the difference in later stage is the stage fixedly, under the prerequisite of the repertoire that keeps the bone external fixator, can meet respectively early stage strong fixing, the flexible fastening in mid-term, the later stage balance is the treatment requirement of stage bone fixedly, promote new bone growth, the sclerotin mineralising, realize optimized reconstruction and the actively rehabilitation of bone function, realize healing fully, facilitate management after operation simultaneously, be convenient for measuring.

With traditional extension rod (Chinese patent application that application publication number is CN102860861A), compare, the quick lengthening bar in the present invention is use better, specific as follows:

What 1, traditional extension rod adopted is the structure of two-stage nitration bar, there is the problem that dilatability is little, and the quick lengthening bar in the present invention has adopted the structure of three sections bars, so tensile elongation has increased a lot (collapsing length is larger) than traditional extension rod, can reach 160mm～350mm, adjusting range is wider, to ankle is orthopedic very large advantage is arranged, and has avoided the drawback of the limited length of traditional extension rod.

2, traditional extension rod is carried while shrinking locking jaw, is easily made the screw thread in locking jaw fasten threaded rod, make threaded rod and bar cover locking on lock sleeve, simultaneously, after traditional extension rod is locked by locking jaw, the fit clearance between threaded rod and bar cover can cause extension rod slight rolling innervation to occur.Quick lengthening bar in the present invention has been cancelled locking jaw, so there will be stuck problem while having avoided threaded rod and locking jaw flexible, simultaneously, quick lengthening bar in the present invention has designed outer bar cover and the cooperation of interior bar cover gapless is free to slide, and control by lock-on connection the slip that outer bar overlaps and interior bar overlaps, realize fast significantly length adjustment with this, owing to being being free to slide of gapless cooperation between interior bar cover and outer bar cover, so locking is rear without rocking.

3, avoided traditional extension rod inconvenient problem with use.Rigidity controller on traditional extension rod is to place separately, when it withstands locking jaw, could realize rigidity control, adjust complexity during use and lose time, if while not needing the rigidity controller, it must be unloaded, so, while using not isomorphism type, must add to consider, and the present invention has adopted the principle that the rigidity controller is built-in, rename as pressure controller, control cover by the pressure in the rotational pressure controller, can adjust the pressure of the present invention to the art bone, by the adjusting sleeve in the integral-rotation pressure controller, can make to realize flexible fine setting between threaded rod and interior bar cover, so both improved and regulated the speed, guaranteed again the degree of accuracy of adjusting, if while not needing rigidity to control, can directly pressure be controlled to cover and rotate the bosom to adjusting sleeve, Compress Spring is depressed into to the shortest (the inelastic state in Compress Spring place), now pressure controller is inoperative.

4, traditional extension rod is when the processing locking jaw, difficulty of processing is large, the finished product rate is low, production cost is high, become the bottleneck that affects product promotion, and the quick lengthening bar in the present invention is cancelled locking jaw, reduced difficulty of processing and production cost, improved working (machining) efficiency, the problem of having avoided the processing locking jaw to bring.

5, traditional bone external fixator all adopts rustless steel, can affect x-ray fluoroscopy in therapeutic process, and all can adopt lightweight duralumin, hard alumin ium alloy, titanium alloy or carbon fibre material in the present invention except threaded rod, so enlarged the x-ray fluoroscopy scope, increase the perspective rate of bone external fixator, be convenient to therapeutic effect is carried out to accurate assessment, also more be conducive to diagnose exactly the situation of fracture, reduce significantly in addition the weight of bone external fixator, be convenient to functional training.

Be provided with angle index on far-end U-shaped hole ring in the present invention and near-end hole loopful, the purpose that angle index is set is to make the installation of quick lengthening bar and the rotation that places of draw point all accomplish to quantize and accurately locate, so both can guarantee that the bone external fixator carried out Fast Installation, can guarantee that again draw point is accomplished to quantize and accurately rotation, can also guarantee that the present invention is when being rotated malformation correction, control accurately RA.That is to say, when having solved that traditional bone external fixator operation installation rate is slow, can not quantize accurately the angle of correcting during the rotation deformity of correction of bone and having adjusted draw point, can not quantize the technical problem of locating.

Although it is fairly simple that the scheme of angle index is set, there is important effect to improving relevance grade of the present invention, especially operation precision of the present invention, operation installation rate, operation installation level and teaching are all had to very large practical significance.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, the present invention will be further described in detail.

Fig. 1 is schematic perspective view of the present invention.

Fig. 2 is using state schematic perspective view of the present invention.

Fig. 3 is that using state master of the present invention looks schematic diagram.

Fig. 4 is that the master of quick lengthening bar looks schematic diagram.

Fig. 5 is the decomposing schematic representation of quick lengthening bar.

Fig. 6 is the assembling schematic diagram of quick lengthening bar.

Fig. 7 is the schematic diagram of the external thread section on the lateral wall, upper end of lock-on connection and outer bar cover.

Fig. 8 is the structural representation of quick lengthening bar.

Fig. 9 is the enlarged diagram at I place in Fig. 8.

Figure 10 is the enlarged diagram at II place in Fig. 8.

Figure 11 is carved with the schematic diagram of angle scale on near-end hole loopful.

Figure 12 is carved with the schematic diagram of angle scale on far-end U-shaped hole ring.

Reference numeral: 1-far-end U-shaped hole ring, 2-near-end hole loopful, the quick lengthening bar of 3-, 3.1-threaded rod, 3.2-interior bar cover, 3.3-outer bar cover, 3.4-adjusting sleeve, 3.5-Compress Spring, 3.6-pressure is controlled cover, 3.7-taper is uncovered, 3.8-taper elastic ring, 3.9-external thread section, 3.10-locking nut, 3.11-bar cover pad, 3.12-threaded connector, 3.13-flanging, 3.14-bearing pin, 3.15-axle sleeve, 3.16-middle pin, 3.17-hinged otic placode, 3.18-Connection Block, 3.19-union joint, 3.20-locating hole, 4-has hinged and joint device locking function, the 5-screw rod, 6-up-down adjustment nut, 7-draw point pad, 8-draw point pressure pad, 9-half pin.

The specific embodiment

Embodiment is referring to shown in Fig. 1-3, and this ankle joint multi-value regulation and control orthosis, by the bone fixed support, be connected to the steel needle fixing clamp on the bone fixed support and the draw point that is clipped in steel needle fixing clamp forms.Described bone fixed support comprise the far-end U-shaped hole ring 1 that is arranged on the calcaneus place, be arranged on the near-end hole loopful 2 at middle tibia or middle epimere place and be connected to far-end U-shaped hole ring and near-end hole loopful between some quick lengthening bars 3.As most preferred embodiment, be connected with four quick lengthening bars 3 between far-end U-shaped hole ring 1 and near-end hole loopful 2.

Referring to Fig. 4-10, described quick lengthening bar 3 includes threaded rod 3.1, interior bar cover 3.2 and outer bar cover 3.3, described threaded rod 3.1 from top to bottom is inserted in interior bar cover 3.2, described interior bar cover 3.2 from top to bottom is inserted in outer bar cover 3.3, the lower end of described outer bar cover 3.3 is provided with multidirectional articulation joint, and multidirectional articulation joint is provided with threaded connector 3.12.

The upper end of described interior bar cover 3.2 is provided with flanging 3.13, and be provided with pressure controller between the upper end of interior bar cover 3.2 and threaded rod 3.1, described pressure controller is by adjusting sleeve 3.4, pressure controls cover 3.6 and Compress Spring 3.5 forms, the upper end of described adjusting sleeve 3.4 is threaded with threaded rod 3.1, the bottom of adjusting sleeve 4 is controlled cover 3.6 with pressure and is threaded, described pressure control cover 3.6 is movably set on the interior bars cover 3.2 of flanging 3.13 downsides, described Compress Spring 3.5 is enclosed within on the threaded rod 3.1 between the flanging 3.13 of the upper end of adjusting sleeve 3.4 and interior bar cover 3.2.

The medial wall, upper end of described outer bar cover 3.3 is provided with taper uncovered 3.7, the lateral wall, upper end of outer bar cover 3.3 is provided with external thread section 3.9, and be provided with lock-on connection between the upper end of outer bar cover 3.3 and interior bar cover 3.2, described lock-on connection is comprised of taper elastic ring 3.8 and locking nut 3.10, described locking nut 3.10 is by the be threaded upper end of the cover of bar outside 3.3 of external thread section 3.9, described taper elastic ring 3.8 is inserted in taper uncovered 3.7, be clipped between interior bar cover 3.2 and outer bar cover 3.3, and the upper end of taper elastic ring 3.8 fixes on the upper end of locking nut 3.10.

Be provided with bar cover pad 3.11 between the medial wall of the lateral wall, bottom of described interior bar cover 3.2 and outer bar cover 3.3.The medial surface of bar cover pad 3.11 is provided with union joint 3.19, and described interior bar cover 3.2 is provided with the locating hole corresponding with union joint 3.19 3.20, and bar cover pad 3.11 is fixed on interior bar cover 3.2 by union joint 3.19 is relative with locating hole 3.20.

Described multidirectional articulation joint by Connection Block 3.18, hinged otic placode 3.17, in pin 3.16, axle sleeve 3.15 and bearing pin 3.14 form, wherein hinged otic placode 3.17 is arranged on the lower end of outer bar cover 3.3, axle sleeve 3.15 and bearing pin 3.14 are articulated and connected on hinged otic placode 3.17 by middle pin 3.16, Connection Block 3.18 is articulated and connected again on bearing pin 3.14, and described threaded connector 3.12 is arranged on Connection Block 3.18.As most preferred embodiment, threaded connector 3.12 is out the internal thread hole on Connection Block 3.18, and Connection Block 3.18 is connected with far-end U-shaped hole ring 1 by bolt.

Described bone fixed support also comprises by the adjustable screw rod 5 be connected on near-end hole loopful 2 of up-down adjustment nut 6, on described screw rod 5, cover has draw point pad 7 and draw point pressure pad 8, and draw point pad 7 and draw point pressure pad 8 are connected on screw rod 5 by upper and lower adjusting nut 6 is adjustable, accompany half pin 9 between draw point pad 7 and draw point pressure pad 8.

As most preferred embodiment, fast the threaded rod 3.1 in lengthening bar 3 hingedly is connected with near-end hole loopful 2 with the joint device 4 of locking function by having, and the multidirectional articulation joint in quick lengthening bar 3 is connected with far-end U-shaped hole ring 1.It is described that to have hinged and joint device 4 locking function can be any one or more the combination in spherical universal joint (Chinese patent application that application publication number is CN103006302A), damping joint (Chinese patent application that application publication number is CN103006303A) or self-locking joint (Chinese patent application that application publication number is CN103006301A).

In the present embodiment, except threaded rod, all can adopt lightweight duralumin, hard alumin ium alloy, titanium alloy, carbon fibre material to make.

Referring to Figure 11, Figure 12, the tow sides of described far-end U-shaped hole ring 1 and near-end hole loopful 2 all are carved with angle scale, and angle scale is engraved in positive outer edge and the reverse side outer edge of hole ring, wherein the angle scale on near-end hole loopful 2 is the tolerance sign of 360 ° consisted of the angle scale of two 0 ° to 180 °, the any point that the angle scale of two 0 ° to 180 ° be take on loopful is 0 °, launch the sign angle index to both sides, angle scale on far-end U-shaped hole ring 1 is the tolerance sign of 180 ° consisted of the angle scale of two 0 ° to 90 °, the angle scale of two 0 ° to 90 ° be take the mid point of U-shaped ring and is 0 °, and to both sides expansion sign angle index.

The layout of described draw point is to set according to the concrete condition of sufferer, in general, can be that near-end inboard screw thread half pin that places 3 pieces of 4mm before tibia (or penetrates two root 4mm screw thread half pins the positively biased side of middle tibia, penetrate 1 4mm screw thread half pin in tibial medial again), be three-dimensional layout, draw point does not pass through muscle, far-end places 1 to 2 piece of full pin of thin diameter (Kirschner wire of 2.5mm) from inside to outside at the calcaneus place, respectively wear 1 piece thin diameter half pin (Kirschner wire of 2.5mm) after in calcaneus and after outer, the thin full pin of diameter and thin diameter half pin are all by large inclined to one side or little partially being fixed on far-end U-shaped hole ring.

The effect of the lock-on connection in the lengthening bar is fast: make interior bar cover and outer bar overlap rapid drawing-off and locking, make interior bar cover and the locking at an arbitrary position of outer bar cover.Specifically, the medial wall, upper end of described exactly outer bar cover is provided with taper uncovered (the medial wall, upper end of outer bar cover is the pyramidal structure that the diameter of axle diminishes gradually) from top to bottom, during locking nut in tightening lock-on connection, taper is uncovered can be compressed the taper elastic ring, make bar cover in the locking of taper elastic ring, now interior bar overlaps and outer bar cover locking, when unscrewing locking nut, the reinstatement of taper elastic ring, make interior bar cover external bar cover free-extension mutually.

Treatment stage in early days, when operative reduction, while being fixed on the art bone by the present invention, locking nut on quick lengthening bar is unclamped, make quick lengthening bar in the quick adjustable state of length (but interior bar cover and outer bar cover relative sliding), simultaneously fast under the effect of the various joint devices with hinged and locking function, in free movement state, the present invention now can carry out three-dimensional adjustment to the drawing-off bar neatly, carries out drawing-off, rotation, pressurizes, resets.After the art bone resets substantially, by the joint device locking with hinged and locking function in the present invention, carry out the micro stretching contracting (adjusting sleeve can be controlled the relative position of interior bar cover and threaded rod) of threaded rod by the adjusting sleeve in the rotational pressure controller, the reduction of the fracture is finely tuned.After the adjustment of art bone resets, pressure in pressure controller can be controlled to cover and rotate the bosom to adjusting sleeve, now Compress Spring is compressed into the shortest, pressure controller inoperative (Compress Spring is inoperative), now the lengthening bar will fully be fixed the art bone fast fast, for union of fracture, new bone mineralising provide strong fixing, guarantee that the knitting initial stage is desired strong fixing, avoided inaccurate due to the stable poor dislocation caused, angulation, the problem such as heal bad.

When the mid-term of knitting, need to be to the flexible fastening that the art bone provides axially and combined stress stimulates, pressure is controlled to the cover rotation to be unclamped, make Compress Spring in the elastic force state, now under the effect of the Compress Spring in pressure controller, the lengthening bar can have certain telescopic resilience (threaded rod is connected with interior bar cover elasticity) fast, control cover by rotational pressure, can regulate the elastic force of Compress Spring, realize thus adjusting the elastic force of controlling quick lengthening bar, thereby reach the purpose of the pressure size of controlling quick lengthening pole pair art bone, now, can control the bone external fixator, implement drawing-off, pressurization function, drawing-off pressurization scope 0～200 handkerchief (unit) of adjusting sleeve on quick lengthening bar to knochenbruch.Clockwise rotate adjusting sleeve 360 degree, increase 1mm, rotate counterclockwise and shorten 1mm, this regulation and control, the flexible fastening rigidity of the best combined stress stimulation of knitting mid-term stage is provided, has given full play to the adaptability of bone counter stress, the growth of capable of regulating bone and absorption, promote the process of union of fracture, complete the optimized reconstruction of bone function.

The anaphase stage: the present invention will provide balance to fix, under the prerequisite of the function that keeps the bone external fixator, can reduce fast at random the quantity of the quick lengthening bar in the present invention, so both kept support strength of the present invention, alleviated again the weight of bone external fixator, and facilitate management after operation, be beneficial to positive rehabilitation.

Claims (10)

1. an ankle joint multi-value regulation and control orthosis, by the bone fixed support, be connected to the steel needle fixing clamp on the bone fixed support and the draw point that is clipped in steel needle fixing clamp forms, it is characterized in that: described bone fixed support comprise the far-end U-shaped hole ring (1) that is arranged on the calcaneus place, be arranged on the near-end hole loopful (2) at middle tibia or middle epimere place and be connected to far-end U-shaped hole ring and near-end hole loopful between some quick lengthening bars (3);

Described quick lengthening bar (3) includes threaded rod (3.1), interior bar cover (3.2) and outer bar cover (3.3), described threaded rod (3.1) from top to bottom is inserted in interior bar cover (3.2), described interior bar cover (3.2) from top to bottom is inserted in outer bar cover (3.3), the lower end of described outer bar cover (3.3) is provided with multidirectional articulation joint, and multidirectional articulation joint is provided with threaded connector (3.12);

The upper end of described interior bar cover (3.2) is provided with flanging (3.13), and be provided with pressure controller between the upper end of interior bar cover (3.2) and threaded rod (3.1), described pressure controller is by adjusting sleeve (3.4), pressure controls cover (3.6) and Compress Spring (3.5) forms, the upper end of described adjusting sleeve (3.4) is threaded with threaded rod (3.1), the bottom of adjusting sleeve (4) is controlled cover (3.6) with pressure and is threaded, described pressure is controlled cover (3.6) and is movably set on the interior bar cover (3.2) of flanging (3.13) downside, described Compress Spring (3.5) is enclosed within on the threaded rod (3.1) between the flanging (3.13) of the upper end of adjusting sleeve (3.4) and interior bar cover (3.2),

The medial wall, upper end of described outer bar cover (3.3) is provided with taper uncovered (3.7), the lateral wall, upper end of outer bar cover (3.3) is provided with external thread section (3.9), and be provided with lock-on connection between the upper end of outer bar cover (3.3) and interior bar cover (3.2), described lock-on connection is comprised of taper elastic ring (3.8) and locking nut (3.10), described locking nut (3.10) is by external thread section (3.9) upper end of bar cover (3.3) outside that is threaded, described taper elastic ring (3.8) is inserted in taper uncovered (3.7), be clipped between interior bar cover (3.2) and outer bar cover (3.3), and the upper end of taper elastic ring (3.8) fixes on the upper end of locking nut (3.10).

2. ankle joint multi-value regulation and control orthosis according to claim 1, it is characterized in that: the threaded rod (3.1) in described quick lengthening bar (3) hingedly is connected with near-end hole loopful (2) with the joint device (4) of locking function by having, and the multidirectional articulation joint in lengthening bar (3) is connected with far-end U-shaped hole ring (1) fast.

3. ankle joint multi-value regulation and control orthosis according to claim 1, is characterized in that: be provided with bar cover pad (3.11) between the medial wall of the lateral wall, bottom of described interior bar cover (3.2) and outer bar cover (3.3).

4. ankle joint multi-value regulation and control orthosis according to claim 1, it is characterized in that: described multidirectional articulation joint is by Connection Block (3.18), hinged otic placode (3.17), middle pin (3.16), axle sleeve (3.15) and bearing pin (3.14) form, wherein hinged otic placode (3.17) is arranged on the lower end of outer bar cover (3.3), axle sleeve (3.15) and bearing pin (3.14) are articulated and connected on hinged otic placode (3.17) by middle pin (3.16), Connection Block (3.18) is articulated and connected again on bearing pin (3.14), described threaded connector (3.12) is arranged on Connection Block (3.18).

5. ankle joint multi-value regulation and control orthosis according to claim 4, it is characterized in that: described threaded connector (12) is out the internal thread hole on Connection Block (3.18).

6. ankle joint multi-value regulation and control orthosis according to claim 1, it is characterized in that: described bone fixed support also comprises by the adjustable screw rod (5) be connected on near-end hole loopful (2) of up-down adjustment nut (6), the upper cover of described screw rod (5) has draw point pad (7) and draw point pressure pad (8), and draw point pad (7) and draw point pressure pad (8) are connected to screw rod (5) above by upper and lower adjusting nut (6) is adjustable, between draw point pad (7) and draw point pressure pad (8), accompany half pin (9).

7. ankle joint multi-value regulation and control orthosis according to claim 1, is characterized in that: between described far-end U-shaped hole ring (1) and near-end hole loopful (2), be connected with four quick lengthening bars (3).

8. ankle joint multi-value regulation and control orthosis according to claim 1, is characterized in that: on described far-end U-shaped hole ring (1) and near-end hole loopful (2), all be carved with angle scale.

9. the ring of the hole with scale according to claim 8, it is characterized in that: the angle scale on described far-end U-shaped hole ring (1) is the tolerance sign of 180 ° consisted of the angle scale of two 0 ° to 90 °, and the angle scale of two 0 ° to 90 ° be take the mid point of U-shaped ring as 0 ° and launched the sign angle index to both sides.

10. near-end hole loopful according to claim 8, it is characterized in that: the angle scale on described near-end hole loopful (2) is the tolerance sign of 360 ° consisted of the angle scale of two 0 ° to 180 °, any point that the angle scale of two 0 ° to 180 ° be take on loopful as 0 °, launch the sign angle index to both sides.

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