CN209629791U - A kind of 3 d traction fixed frame - Google Patents

Abstract

The utility model discloses more particularly to a kind of 3 d traction fixed frame, be related to medical instruments field.The hitch frame includes fixed device, traction device and tensometer.Wherein, fixed device includes two kirschner penetrated from limbs side nails and the U-shaped part for maintaining kirschner nail tension, and the both ends of kirschner nail are connected and fixed by a retaining mechanism and U-shaped part respectively；Traction device includes traction screw, the both ends of traction screw be arranged with respectively with the matched adjusting nut of its screw thread, offer universal hole in the middle part of arc panel, traction screw passes through two universal holes and passes through adjusting nut and arc board locking；Tensometer is fixed on traction screw.Fracture site can be supported and be drawn by the 3 d traction fixed frame, surround stable hitch frame, it does not need to be able to maintain stable traction state by external structure counterweight and flexibly be moved with patient when making to be formed to be spaced between fracture site and hospital bed to avoid the formation of thrombus, and drawing.

Description

A kind of 3 d traction fixed frame

Technical field

The utility model relates to medical instruments field more particularly to a kind of 3 d traction fixed frames.

Background technique

For the fracture of the long bones such as shin bone, femur, ulna and radius, humerus, Intramedullary nailing and bone plate are mainly used It is fixed to carry out operative treatment.Since the muscle strength of surrounding bone is powerful, often because the drawing of muscle causes fracture end cripetura Situations such as lopsided, influences the compound of fracture and can destroy soft tissue and neural blood vessel around fracture end, in order to maintain limbs The line of force prevents the generation of cripetura it is necessary to which auxiliary reset fractures and restores limbs in operation and therapeutic process using traction mechanism Length.

When such as being drawn to bone ilium in existing traction mechanism, kirschner nail is beaten into the end in limbs and is led using tension It draws a bow and maintains its tension, and tension force traction bow then needs to connect counterweight by pulley gear, to be led to tension force traction bow Draw.So, it is desirable to maintain the traction state of monolithic stability it is necessary to be always ensured that tension force traction bow and counterweight and pulley gear connect It connects, can not be moved after being fixed due to pulley gear, so that resulting in patient also can not be free movable, caused sleeping for a long time Bed；And during bed, limbs and bed board long-time contact squeeze easily cause phlebothrombosis, pressure sore etc., to patient Health generate harm；And when patient checks and must not be inactive, traction mechanism can only just be disassembled It is checked again, re-starts traction after having checked again, cannot keep the duration of traction, seriously affected the effect of traction Fruit.

Utility model content

Effectively fracture site can be supported the technical problem to be solved by the utility model is to provide one kind and drawn, and And stable hitch frame is surrounded, when making to be formed to be spaced between fracture site and hospital bed to avoid the formation of phlebothrombosis, while drawing not The 3 d traction fixed frame for needing to be able to maintain stable traction state by external structure counterweight and flexibly being moved with patient.

In order to solve the above technical problems, technical solution adopted in the utility model is:

A kind of 3 d traction fixed frame characterized by comprising

One fixed device, when patient lies low, positioned at the lower section of limbs by limb support, including two are used to from limbs The kirschner nail that side penetrates and the U-shaped part for maintaining each kirschner nail tension, the U-shaped part includes two parallel fixed arms And the arc panel of two fixed arm lower ends of connection, the both ends of kirschner nail respectively by a retaining mechanism with it is corresponding solid Fixed arm is connected and fixed.

One traction device, including the traction screw for connecting two arc panels, the both ends of the traction screw are arranged respectively Have and be located on the inside of arc panel with the matched adjusting nut of its screw thread, the adjusting nut, offers ten thousand in the middle part of the arc panel Xiang Kong, the traction screw pass through two universal holes and pass through adjusting nut and arc board locking.

One tensometer is fixed on traction screw for detecting the tension of traction screw.

A further technical solution lies in the U-shaped part further includes a link mechanism, and the link mechanism includes being located at U Plane and the connecting rod perpendicular to fixed arm where shape part, the connecting rod center ofthe setting, the both ends point of the connecting rod Be not hinged with inclined drive rod obliquely upward symmetrically, the other end and fixed arm of the drive rod are hinged, the connecting rod with Arc panel is bolted by a driving, and the driving bolt is parallel to fixed arm and is arranged in connecting rod and arc panel Portion, wherein the junction of told arc panel and driving bolt is equipped with matched screw thread, and the lower end of the driving bolt is fixed There is driving plate, the universal hole is provided in driving plate, and the arc panel and fixed arm are hinged by pin shaft.

A further technical solution lies in the retaining mechanism includes the bail wire being fixed on fixed arm, the clamping Ring can be such that kirschner nail wears wherein, open up jagged, the two sides court of the notch on the side wall of the bail wire along its axial direction Extend two fixed lobes being parallel to each other to the outer surface of bail wire, be formed between the fixed lobe and adjust gap, It adjusts and is bolted by one between the fixed lobe, the fixed lobe of the adjusting bolt and wherein side passes through screw thread and connects It connects, the tail portion for adjusting bolt is equipped with perpendicular connecting shaft, and the both ends of the connecting shaft have one by bearing hinge connection Adjust handle.

A further technical solution lies in the retaining mechanism includes perpendicular to plane where fixed arm and being arranged in fixation Fastening bolt on arm, the head of the fastening bolt offer the arc groove being bonded with kirschner nail outer surface, the arc Slot opening is arranged towards fixed arm direction, be equipped in the fastening bolt with the matched fastening nut of its screw thread, described gram The both ends of family name's nail are placed between arc groove and the surface of fixed arm and can be by rotational fastener nut lockings.

A further technical solution lies in the joint place of the bail wire and fixed arm is equipped with locking perpendicular to fixed arm Screw rod, one end and the bail wire of the tie down screw are fixed, the other end be arranged with the matched locking nut of its screw thread, it is described solid Fixed arm offers strip-shaped hole along the vertical direction, and the tie down screw is arranged in strip-shaped hole can be inside strip-shaped hole along its length It slides and is locked by locking nut in direction.

A further technical solution lies in the fixed arm offers strip-shaped hole along the vertical direction, and the fastening bolt is worn In strip-shaped hole can strip-shaped hole internal slide and be locked by fastening nut.

A further technical solution lies in the diameter of the kirschner nail is 2~2.5mm, and the both ends of told kirschner nail are equipped with Towards the fixation bending of inside.

A further technical solution lies in the fixed device and traction device use carbon material, and the tension is calculated as Detachable structure.

The beneficial effects of adopting the technical scheme are that

The structure mutually drawn using two U-shaped parts by traction screw ensure that the steady of traction effect and hitch structure It is fixed, it can effectively maintain the contraposition of fracture end to line before surgery, stable fracture promotes soft tissue to restore, and can be during surgery Effective traction is provided, operating time is shortened, reduces surgical injury.

Also, in patient's bed, the hitch frame structure that U-shaped part and traction screw surround is located at the lower section of fracture site, Fracture site is supported, makes to form gap between limbs and the bed board of lower section, ensure that the circulation of blood, avoid Blood circulation is slow to cause phlebothrombosis, to endanger patient health.

Meanwhile hitch frame and fracture site traction are fixed, traction does not need to tie by outside again mutually between two U-shaped parts Structure counterweight so that entire hitch structure can follow patient flexibly to move, and remains stable traction state, Bu Huiying Ring traction effect, for patient need to leave the bed inspection or activity when provide a great convenience, promote the recovery of soft tissue.

Detailed description of the invention

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.

Fig. 1 is a kind of axis geodesic structure schematic diagram of embodiment of the utility model；

Fig. 2 is a kind of schematic view of the front view of embodiment of the utility model；

Fig. 3 is the axis geodesic structure schematic diagram of the utility model another kind embodiment；

Fig. 4 is a kind of structural schematic diagram of embodiment of retaining mechanism described in the utility model；

Fig. 5 is the structural schematic diagram of retaining mechanism another kind embodiment described in the utility model.

Specific embodiment

Below with reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear Chu is fully described by, it is clear that described embodiment is a part of the embodiment of the utility model, rather than whole implementation Example.Based on the only embodiment in the utility model, those skilled in the art are obtained without making creative work The every other embodiment obtained, fall within the protection scope of the utility model.

Many details are explained in the following description in order to fully understand the utility model, but this is practical new Type can also be implemented using other than the one described here other way, and those skilled in the art can be without prejudice to this reality With doing similar popularization in the case where novel intension, therefore the utility model is not limited by the specific embodiments disclosed below.

As shown in fig. 1~fig. 5, a kind of 3 d traction fixed frame, is mainly used for at shin bone, femur, ulna and radius, humerus Fracture traction, including fixed device 1, traction device 2 and tensometer 3.Wherein, fixed device 1 is located at limbs when patient lies low Lower section by limb support, be used to the kirschner penetrated from limbs side nail 11 and for maintaining each kirschner nail 11 including two The U-shaped part 12 of tension, the U-shaped part 12 include two parallel fixed arms 121 and the arc for connecting two 121 lower ends of fixed arm The both ends of shape plate 122, the kirschner nail 11 are connected and fixed by a retaining mechanism 10 with corresponding fixed arm 121 respectively.It leads Leading-in device 2 includes the traction screw 21 for connecting two arc panels 122, and the both ends of the traction screw 21 are arranged with respectively and it The matched adjusting nut 23 of screw thread, the adjusting nut 23 are located at 122 inside of arc panel, and the middle part of the arc panel 122 opens up There is universal hole 22, the traction screw 21 passes through two universal holes 22 and locks by adjusting nut 23 and arc panel 122.Tensometer 3 are fixed on traction screw 21 for detecting the tension of traction screw 21.

When in use, the suitable distance first at fracture both ends respectively penetrates kirschner nail from side to the traction fixation frame 11, lower square degree retaining ring when U-shaped part 12 is lain low from patient on fracture limbs, and make two fixed arms 121 respectively with gram Two end in contact that family name's nail 11 exposes keep one end therein fixed with corresponding fixed arm 121, then use using retaining mechanism 10 Tension clamp, which is adjusted, maintains the tension of kirschner nail 11 to reach requirement, and then kirschner is followed closely 11 using the retaining mechanism 10 of the other end The other end and corresponding fixed arm 121 it is fixed, unclamp tension clamp, U-shaped part 12 can replace tension clamp to maintain kirschner nail 11 at this time Tension, guarantee to kirschner nail 11 effectively traction.Wherein tension clamp is structure common in medical instrument.

Then, the universal hole 22 that traction screw 21 is passed through to two arc panels, 122 middle part, so that two U-shaped parts 12 be connected Connect, then by the adjusting nut 23 at 21 both ends of rotation traction traction screw rod push two arc panels 122 to the both ends of traction screw 21 by It is gradually separate, and fixed arm 121 11 has been connected and fixed with kirschner nail, therefore U-shaped part 12 will drive kirschner nail 11 to two side-linings, The synchronous drawing tension for generating fracture end, and can be adjusted by the distance between adjusting arc panel 122 of adjusting nut 23 Change the tension of traction screw 21, as the distance between arc panel 122 becomes larger, the tension of traction screw 21 can gradually increase Greatly.At this point, the tensometer 3 being fixed on traction screw 21 can synchronize the tension of traction screw 21 is monitored and is shown in it is aobvious Show on device, when the tension on display, which reaches traction, to be required, stop promoting adjusting nut 23, to complete to fracture limbs Traction is fixed.

Wherein, universal hole 22 herein is structure common in medical instrument, such as the universal lock of the use on bone plate Structure.Due to the case where fracturing difference, when kirschner nail 11 penetrates limbs from side, it is difficult in fully horizontal state, and Two kirschner nails 11 can not be substantially parallel setting, and after having led to connection U-shaped part 12, two U-shaped parts 12 are not complete yet Vertical state and rotation angle is different, therefore is worn traction screw 21 wherein using universal hole 22, and universal hole 22 can make Traction screw 21 is connect with any angle with U-shaped part 12, to can be led the rotation angle difference of two U-shaped parts 12 Draw screw rod 21 to connect and stable structure is maintained to draw fracture end.

The structure mutually drawn using two U-shaped parts 12 by traction screw 21, ensure that traction effect and hitch structure Stabilization, can effectively maintain before surgery fracture contraposition to line, stable fracture, and can assist during surgery operation led Draw.Also, in patient's bed, the hitch frame structure that U-shaped part 12 and traction screw 21 and fracture site surround is located at fractures The lower section of position, is supported fracture site, makes to form gap between limbs and the bed board of lower section, ensure that the recycle stream of blood It is logical, avoid that blood circulation is slow to cause phlebothrombosis, to endanger patient health.Meanwhile hitch frame and fracture site are drawn Fixed, traction does not need again by external structure counterweight two U-shaped parts 12 mutually, so that entire hitch structure can follow patient It is flexible mobile, and remain stable traction state, it will not influence traction effect, need to leave the bed inspection or activity for patient When provide a great convenience, promote the recovery of soft tissue.

Since the tension for adjusting kirschner nail 11 using tension clamp recycles 10 fixation procedure of retaining mechanism cumbersome, tension clamp meeting The operation that interference medical staff follows closely 11 other ends to kirschner is fixed, therefore further includes a link mechanism, the connecting rod on U-shaped part 12 Mechanism includes positioned at 12 place plane of U-shaped part and perpendicular to the connecting rod of fixed arm 121 123,123 center ofthe of connecting rod Setting, the both ends of the connecting rod 123 are respectively symmetrically hinged with inclined drive rod 124 obliquely upward, the drive rod 124 The other end and fixed arm 121 are hinged, and the connecting rod 123 is connect with arc panel 122 by a driving bolt 125, the driving Bolt 125 is parallel to fixed arm 121 and is arranged in the middle part of connecting rod 123 Yu arc panel 122, wherein told arc panel 122 with The junction of bolt 125 is driven to be equipped with matched screw thread, the lower end of the driving bolt 125 is fixed with driving plate 126, institute It states universal hole 22 to be provided in driving plate 126, the arc panel 122 and fixed arm 121 are hinged by pin shaft.

In this way, just constituting the structure of tension force traction bow common in medical instrument.So as to which kirschner is directly followed closely 11 Both ends be also secured on U-shaped part 12, and by adjust U-shaped part 12 be open size come adjust kirschner nail 11 tension, behaviour Only need rotary drive plate 126 that driving bolt 125 is driven to adjust arc panel 122 at a distance from connecting rod 123 when making, due to arc The position of plate 122 is fixed, thus connecting rod 123 can present be gradually distance from or close to arc panel 122 motion profile, to drive The drive rod 124 of two sides using the hinge joint with fixed arm 121 as axis rotate, thus push two fixed arms 121 with arc panel 122 Hinge joint be that axis rotates toward or away from one another, to change the openings of sizes of U-shaped part 12, and then reach and adjust kirschner nail 11 Tension purpose.Since the middle part that universal hole 22 is provided with arc panel 122 can be interfered with each other with driving bolt 125, this The universal hole 22 at place is provided with 126 plate of driving plate, to reach same traction effect, without adjusting again by tension clamp Tension makes to operate simpler quick.

Wherein, a kind of embodiment of retaining mechanism 10 be include the bail wire 101 being fixed on fixed arm 121, the card Tight ring 101 can be such that kirschner nail 11 wears wherein, open up on the side wall of the bail wire 101 along its axial direction it is jagged, it is described to lack Extend two fixed lobes being parallel to each other 102, the fixed lobe 102 in the outer surface of two sides towards the bail wire 101 of mouth Between be formed with and adjust gap 1020, adjust bolt 103 by one between the fixed lobe 102 and connect, the adjusting bolt 103 are connected through a screw thread with the fixed lobe 102 of wherein side, and the tail portion for adjusting bolt 103 is equipped with perpendicular There is an adjusting handle 105 at the both ends of connecting shaft 104, the connecting shaft 104 by bearing hinge connection.

When in use, handle 105 will be adjusted first to rotate around connecting shaft 104 to suitable position, can enough hands easily The position held and adjusting screw rod 103 can be driven to rotate, rotation, which adjusts handle 105, makes adjusting screw rod 103 to adjusting 105 side of handle To movement, so that adjusting screw rod 103, which will drive, adjusts the fixed lobe 102 that handle 105 is gradually distance from adjacent side, no longer Fixed lobe 102 is squeezed, the U-shaped part 12 for being connected with retaining mechanism 10 is placed on to the suitable position connecting with kirschner nail 11 It sets, the both ends of kirschner nail 11 can easily penetrate the bail wire 101 of two sides at this time, then reversely rotate the adjusting handle of side 105, in the case where adjusting handle 105 and nut collective effect, the fixed lobe 102 of two sides can move closer to adjust gap 1020 It constantly reduces, and then reduces the diameter of bail wire 101, the inner sidewall of bail wire 101 is made gradually to oppress the side of kirschner nail 11, and It is finally that kirschner nail 11 is tight dead with bail wire 101, it move kirschner nail 11 can not again, will finally adjust handle 105 around connecting shaft 104 rotations are best not influence other operations, to complete to utilize a U-shaped part 12 and retaining mechanism 10 right to initial position The traction of kirschner nail 11 is fixed, and easy to operate, can directly be manually completed by medical worker.

Another embodiment of retaining mechanism 10 is, including perpendicular to 121 place plane of fixed arm and is arranged in fixed arm Fastening bolt 108 on 121, the head of the fastening bolt 108, which is offered, follows closely the arc groove that 11 outer surfaces are bonded with kirschner 1080, the opening of arc groove 1080 is arranged towards 121 direction of fixed arm, is equipped with and its spiral shell in the fastening bolt 108 The both ends of the matched fastening nut 109 of line, the kirschner nail 11 are placed between arc groove 1080 and the surface of fixed arm 121 simultaneously It can be locked by rotational fastener nut 109.When in use, it first has to unscrew fastening nut 109 by spanner, kirschner is followed closely 11 Both ends be placed between arc groove 1080 and the surface of fixed arm 121, then fastening nut 109 is screwed.

Due to the difference at patients with fractures position, and the limb size of different patients is also different, therefore in order to make the hitch frame Reach best bearing height, in the case where a kind of retaining mechanism 10, bail wire 101 is vertical with the joint place of fixed arm 121 It is equipped with tie down screw 106 in fixed arm 121, one end of the tie down screw 106 and bail wire 101 are fixed, and the other end is arranged Have and offers strip-shaped hole 1210, the locking along the vertical direction with the matched locking nut 107 of its screw thread, the fixed arm 121 Screw rod 106, which is arranged in strip-shaped hole 1210, can slide along its length inside strip-shaped hole 1210 and pass through locking nut 107 are locked.

In this way, retaining mechanism 10 can be adjusted on fixed arm 121 by tie down screw 106 and locking nut 107 Position reaches best support effect so as to adjust traction screw 21 at a distance from limbs of patient.And bail wire at this time 101 can be with tie down screw 106 for axis Arbitrary Rotation, to make kirschner nail 11 in the plane where U-shaped part 12 to appoint Meaning angle is connect with U-shaped part 12, so as to adjust U-shaped part 12 its support angle planar, make it in kirschner nail 11 be not still to be adjustable vertical state in the case where horizontality, further ensure can the limbs to patient most had The traction and support of effect.

In the case where another retaining mechanism 10, fixed arm 121 offers strip-shaped hole 1210 along the vertical direction, described tight Fixing bolt 108 be arranged in strip-shaped hole 1210 can strip-shaped hole 1210 internal slide and locked by fastening nut 109 with it It is fixed.So directly change traction screw 21 and limbs of patient by adjusting position of the fastening bolt 108 in strip-shaped hole 1210 Distance.

Since the both ends of kirschner nail 11 are more sharp, it is easy that surrounding objects are caused to scratch, and because of kirschner when drawing Nail 11 will maintain always tension, therefore the kirschner generally used follows closely 11 diameters as 4mm, it is not easy to be deformed, also just more increase The sharpness at both ends.And in 3 d traction fixed frame described in the utility model, due to maintaining kirschner by means of U-shaped part 12 The tension of nail 11, so use the kirschner nail 11 that diameter is 2~2.5mm, the kirschner of this diameter range 11 bendings resistance of nail compared with It is low, so medical worker can scratch week easily by both ends towards inside bending so as to avoid tip after traction is fixed The case where enclosing object improves the safety of the hitch frame.

In the therapeutic process of patient, the inspection such as nuclear magnetic resonance is inevitably carried out, and many metal materials can be right The instruments such as nuclear magnetic resonance interfere, or even will cause malpractice, therefore fixed device 1 and traction device 2 use carbon material Matter, and pressure gauge 3 is detachable structure, and kirschner nail 11 is substituted for peptide needle, so can directly be worn when being checked The hitch frame will not have an impact inspection apparatus, without being dismantled to hitch frame, so as to receive instrument inspection or Also stable traction state can be maintained when treating always.

The above is only the preferred embodiments of the utility model, anyone content according to the present utility model is to the utility model A little simple modification, deformation and the equivalent replacement made each falls within the protection scope of the utility model.

Claims (8)

1. a kind of 3 d traction fixed frame characterized by comprising

One fixed device (1), when patient lies low, positioned at the lower section of limbs by limb support, including two are used to from limbs The kirschner nail (11) that side penetrates and the U-shaped part (12) for maintaining each kirschner nail (11) tension, the U-shaped part (12) include Two parallel fixed arms (121) and the arc panel (122) for connecting two fixed arm (121) lower ends, the kirschner follow closely (11) Both ends be connected and fixed respectively by a retaining mechanism (10) with corresponding fixed arm (121)；

One traction device (2), the traction screw (21) including being used to connect two arc panels (122), the traction screw (21) Both ends are arranged with respectively to be located on the inside of arc panel (122) with the matched adjusting nut of its screw thread (23), the adjusting nut (23), It is offered universal hole (22) in the middle part of the arc panel (122), the traction screw (21) passes through two universal holes (22) and passes through Adjusting nut (23) and arc panel (122) lock；

One tensometer (3) is fixed on traction screw (21) for detecting the tension of traction screw (21).

2. a kind of 3 d traction fixed frame according to claim 1, which is characterized in that the U-shaped part (12) further includes one Link mechanism, the link mechanism include being located at U-shaped part (12) place plane and perpendicular to the connecting rod of fixed arm (121) (123), connecting rod (123) the center ofthe setting, the both ends of the connecting rod (123) are respectively symmetrically hinged with obliquely upward Inclined drive rod (124), the other end of the drive rod (124) and fixed arm (121) hingedly, the connecting rod (123) with Arc panel (122) is parallel to fixed arm (121) and is arranged in by driving bolt (125) connection, the driving bolt (125) The middle part of connecting rod (123) and arc panel (122), wherein told arc panel (122) and the junction of driving bolt (125) are set There is matched screw thread, the lower end of driving bolt (125) is fixed with driving plate (126), and the universal hole (22) opens up It is hinged by pin shaft between the arc panel (122) and fixed arm (121) on driving plate (126).

3. a kind of 3 d traction fixed frame according to claim 1 or 2, which is characterized in that retaining mechanism (10) packet The bail wire (101) being fixed on fixed arm (121) is included, the bail wire (101) can be such that kirschner nail (11) wears wherein, institute It states on the side wall of bail wire (101) and to open up jagged, the outer surface of the two sides of the notch towards bail wire (101) along its axial direction Extend two fixed lobes being parallel to each other (102), be formed between the fixed lobe (102) and adjust gap (1020), Bolt (103) connection is adjusted by one between the fixed lobe (102), adjusting bolt (103) is consolidated with wherein side Fixed protrusion (102) is connected through a screw thread, and the tail portion for adjusting bolt (103) is equipped with perpendicular connecting shaft (104), institute There is an adjusting handle (105) at the both ends for stating connecting shaft (104) by bearing hinge connection.

4. a kind of 3 d traction fixed frame according to claim 1 or 2, which is characterized in that retaining mechanism (10) packet It includes perpendicular to the fastening bolt (108) fixed arm (121) place plane and be arranged on fixed arm (121), the fastening bolt (108) head offers the arc groove (1080) being bonded with kirschner nail (11) outer surface, and the arc groove (1080) is opened Mouth is arranged towards fixed arm (121) direction, is equipped with and the matched fastening nut of its screw thread on the fastening bolt (108) (109), the both ends of the kirschner nail (11) are placed between arc groove (1080) and the surface of fixed arm (121) and can pass through Rotational fastener nut (109) locking.

5. a kind of 3 d traction fixed frame according to claim 3, which is characterized in that the bail wire (101) and fixation The joint place of arm (121) is equipped with tie down screw (106) perpendicular to fixed arm (121), one end of the tie down screw (106) with Bail wire (101) is fixed, the other end be arranged with the matched locking nut of its screw thread (107), the fixed arm (121) is vertically Direction offers strip-shaped hole (1210), and the tie down screw (106) is arranged in can be in strip-shaped hole in strip-shaped hole (1210) (1210) internal to slide and be locked by locking nut (107) along its length.

6. a kind of 3 d traction fixed frame according to claim 4, which is characterized in that the fixed arm (121) is vertically Direction offers strip-shaped hole (1210), and the fastening bolt (108) is arranged in can be in strip-shaped hole in strip-shaped hole (1210) (1210) internal slide is simultaneously locked by fastening nut (109).

7. a kind of 3 d traction fixed frame according to claim 1, which is characterized in that the diameter of kirschner nail (11) is 2~2.5mm, the both ends of told kirschner nail (11) are equipped with the fixation bending (111) towards inside.

8. a kind of 3 d traction fixed frame according to claim 1, which is characterized in that the fixed device (1) and traction Device (2) uses carbon material, and the tensometer (3) is detachable structure.