CN209285879U - Finger traction reduction is fixed to integration clamping plate - Google Patents

Abstract

The utility model discloses a kind of fixed finger traction reductions of radius far-end fracture reset that is mainly used for be fixed to integration clamping plate.It can be by clamping plate Fast Installation after the completion of the manipulative reduction of fracture of distal radius, then acted on by the ligament reduction that finger is drawn, Wrist fracture can realize further reset, and the well maintained distal aspect of the radius height of energy, lead can also be adjusted as required and correct lateral displacement, each joint of hand is allowed to carry out functional training on the basis of maintaining to reset, promote detumescence, also patient hand's function is remained as far as possible, guarantee rehabilitation efficacy, simultaneously, the utility model could be applicable to multiple fracture of metacarpal bone, specific type fracture of metacarpal bone, the treatment of ulna Impingement Syndrome and articulatio radiocarpea inflammation.

Description

Finger traction reduction is fixed to integration clamping plate

Technical field

The utility model relates to medical instruments field more particularly to a kind of fingers fixed for radius far-end fracture reset Traction reduction is fixed to integration clamping plate.

Background technique

Fracture of distal radius is clinically common, and the accounting highest in orthopaedics emergency treatment fracture patient, 17% is more than 50 years old Women fracture of distal radius can occur, mainly that osteoporosis easily occurs with women post menopausal is related.With mankind's life expectancy Continuous extend and to the continuous improvement that quality of life requires, the treatment of fracture of distal radius is more taken seriously.Articulatio radiocarpea Motion frequency is high, and malpractice is easy concurrent chronic ache and anchylosis after damage, extreme influence hand activities function, however How selecting correct therapeutic modality, there are still disputes.Current main treatment method has following 3 kinds: closed reduction gypsum is small It is fixed outside Boards wall, closed reduction Kirschner wire or bracket, it is fixed in open reduction steel plate screw.Gypsum is fixed to be used in section Lei Shi Palmar flexion, ruler deviation fix wrist joint usually after manipulative reduction when fracture, change after 2-3 weeks and fix for neutral position, and plintlet The fixed wrist joint that is typically not greater than is 4-6 weeks fixed, and above-mentioned fixed form is simple and easy to do, almost noninvasive, low-cost because having Advantage, it is often preferred for gerontal patient, but reduction of the fracture loss, articular surface height cannot maintain, (plintlet is solid for the long-term swelling of wrist It is fixed even to cause serious swelling), malunion the case where it is common, it is also difficult to early stage carries out effective efficiency exercise, and final Lead to patient's wrist joint inability, pain, stiff and limitation of activity, although and operative treatment is totally seen in reduction of the fracture rear stability And there is certain advantage, but this species diversity is unobvious in gerontal patient, but also there are blood vessels, mind in terms of functional rehabilitation Through, tendon injury, infection, extended hospital stay and risks or the drawback such as costly.

Try hard to make improvement to conventional gypsum or plintlet technology currently, having some Patent designs, this is that we are liked See, but there are still some defects, such as the Chinese utility model patent of Authorization Notice No. CN 201064510Y are public for these designs It has opened a kind of " Colles's fracture adjustable external fixer ", which, in the hinge arrangement of wrist joint, is realized by clamping plate Wrist joint bends and stretches the adjustment and fixation of angle in difference, but can not carry out the adjustment of ruler oar lateral deviation rake angle；And Granted publication The Chinese utility model patent of number CN 205515104U discloses " a kind of controlling type distal radius strap ", and the design is same Sample is the hinge arrangement by wrist joint while realizing wrist joint palmar flexion, dorsiflexion and ruler is inclined, oar is inclined adjustment, but above-mentioned is set Meter is exactly that distal aspect of the radius height cannot preferably maintain (especially comminuted bone there is also a common defect Folding), and the fracture of distal radius overwhelming majority is fragility fractures, is caused by osteoporosis, bone occurs in traditional fixed form later period The case where folding resets loss, distal aspect of the radius height reduces is very universal, and such case is restored to influence on wrist joint function It is very big, or even this is also the main reason for causing postoperative effect bad in internal fixation operation.

In addition, the Chinese invention patent of Authorization Notice No. CN 103989546B discloses one kind, " fracture of distal radius is noninvasive Adjustable type plywood support bracket ", the design connect the low temperature thermoplastic plate clamping plate of forearm and palm, it can be achieved that wrist by external fixing rack All directions adjustment, also can preferably maintain distal aspect of the radius height seemingly, but still have the following deficiencies: 1. installation processes Excessively cumbersome, time-consuming；2. two people or more is needed to cooperate for a long time simultaneously, it otherwise not can guarantee reset during the installation process and do not lose It loses；3. if X-ray film discovery reset is bad, and reset installation again, can expend the too many time after need to dismantling check after being installed, Does the form of palmar hand clamping plate need to remold at this time? 4. the maintenance of distal aspect of the radius height needs certain tractive force Amount, the hand clamping plate in the patent are " C " type structure, do not referred in patent document hand clamping plate be from ulnar side or oar side into Row installation, if being open in oar side, since palmar hand is by closely to being far gradually by thick thinning physiological structure, hand clamping plate can be protected Handle the strength to distal end traction? if opening is in ulnar side, clamping plate has certain support at first carpo-metacarpal Joints, works as connecting band Certain traction strength can be maintained after fastening, but the activity of thumb will receive obvious limitation at this time, this is should never to be allowed to Occur；5. low temperature thermo-plastic planking and external fixing rack be not cheap in current domestic price, how many patient can be ready using； 6. when use in winter, how to accomplish to keep warm? so the invention and do not have practicability.

Utility model content

For the various defects of the prior art, the utility model provides a kind of finger traction reduction and is fixed to integration folder Plate can be carried out Fast Installation after the completion of the manipulative reduction of fracture of distal radius, then draw Wrist fracture by carrying out finger It can also be achieved further reset, be both able to maintain distal aspect of the radius height, moreover it is possible to according to circumstances variation adjustment lead, Allow wrist joint on the basis of maintaining to reset and its with the activity in remote each joint, remain patient hand's function as far as possible, To guarantee rehabilitation efficacy.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of finger traction reduction is fixed Integrated clamping plate, including palm dorsal fitting splint, dorsal forearm clamping plate, forearm palmar clamping plate and its traction device of connection, and Column silicagel pad, by palm dorsal fitting splint and forearm palmar clamping plate dock, it can be achieved that fracture of distal radius it is fast and effective It is fixed, ligament reduction effect then can reach by the adjusting of traction device, can further stable fracture and promotion reset, may be used also The lateral displacement of fracture is adjusted using column silicagel pad, palm dorsal fitting splint is changed to dorsal forearm clamping plate again by the later period in due course Wrist joint function can preferably be retained.

The palm dorsal fitting splint main body is rigid plastic sheet, and human contact face is compounded with breathable sponge, hard plastic The form of flitch and sponge and the back of the hand and wrist are conformal, and keep roomy in wrist, and respectively there are a sheet metal in plate back two sides, should Sheet metal is fixed on rigid plastic sheet by fixing screws, and four pieces of symmetrical metal bars, metal are welded in sheet metal proximal end Stick passes through plate and protrudes to palmar, and forms 75 °~80 ° angles with plate, and the two sides spacing of metal bar is compared with wrist joint ruler oar side Wide 1~the 5mm of spacing, the length for protruding clamping plate part is 2~5mm smaller than carpal thickness, in palm dorsal fitting splint proximal end Side is provided with a strip clamping plate side opening, is provided with palm dorsal fitting splint Elastic bandage in side opening, can be solid by velcro It is fixed, multiple air holes, component early application after the reduction of the fracture are spread in the middle part of plate.

Described its structure of dorsal forearm clamping plate is similar to palm dorsal fitting splint, but its main body is longer, metal bar and plate The angle of formation is 93 °~95 °, the position distribution and height, installation direction and hand identical as palm dorsal fitting splint of the metal bar Dorsal fitting splint is slapped on the contrary, the phase uses after the treatment.

Described its structure of forearm palmar clamping plate is similar to dorsal forearm clamping plate, but its four pieces of symmetrical columnar metals Structure is metal tube, and the angle that metal tube and plate are formed is right angle, internal diameter 1~1.5mm big compared with metal rod outside diameter, metal tube It can dock and be inserted in metal bar, the distributing position and height of metal tube are identical as metal bar.

Described its distal end bottom surface of forearm palmar clamping plate has a bellows by bellows screw, and laterally bridge joint is fixed on clamping plate On the sheet metal of two sides, it can be accommodated in bellows and limit draw bar straight-bar.

Be provided with buckle teeth area in the middle part of described its proximal end bottom surface of forearm palmar clamping plate, buckle teeth towards distally directed, button There are two clamping plate side openings for the setting on one side of tooth area, are respectively used to fixed forearm palmar clamping plate proximal end Elastic bandage and forearm palmar clamping plate Distal end Elastic bandage.

The traction device is made of finger traction casing, draw bar straight-bar, Y-shaped bow arm and plastic fastener, traction dress It sets to be connected on forearm palmar clamping plate and use, the distal end of draw bar straight-bar bends arm with Y-shaped by traction bar joint and is connected, and is leading Drawing at bar joint has one piece of draw bar joint screw, and controllable Y-shaped bow arm bends and stretches angle, and Y-shaped bends the two-arm width of arm 10~20mm big compared with palm width, the distal end of two-arm bend wave arc by Y-shaped and are connected as an annular entirety.

Described its proximal end of draw bar straight-bar becomes flat, is connected by fastener rivet with plastic fastener, and plastic fastener is rectangular There are the buckle teeth of number row's row arrangement in the bodily form, top surface, and the direction of buckle teeth is directed toward proximal end, with buckleing for forearm palmar clamping plate proximal end bottom surface Tooth area can be mutually twisted, and the proximal end of plastic fastener convexes to form button handle to bottom surface.

The finger traction casing is reticular structure, is woven using polyester fiber, and distal end is tightened with button is closed up, then Be connected with metal retaining ring, there is snap switch on metal retaining ring, snap switch can padlock in Y-shaped bow wave arc.

The column silicagel pad is equipped with a relatively narrow stringer opening, and top view is in " C " shape, and internal diameter can be adapted to metal tube Outer diameter is inserted in metal tube when needing and assisting and correct lateral displacement and uses.

The utility model has the beneficial effects that the forearm palm can be run through after the manipulative reduction for completing fracture of distal radius The fastening of side clamping plate and palm dorsal fitting splint is completed to fix, and it is extremely low that early stage resets the risk lost；It is drawn by the fingerstall of finger It can maintain the height of distal aspect of the radius；Traction side can be adjusted by bellows and traction bar joint according to actual needs To and angle, when needing to carry out biggish side traction or still thering is lateral displacement to need to correct, also can be used column silica gel Pad is placed to reach auxiliary stablizing effect in metal tube diagonal positions, at this time can also auxiliary reset under the action of tractive force； The dynamics of traction can be configured according to the actual situation and can make adjustment at any time；When needs activity finger-joint, can incite somebody to action Padlock on finger-stall is opened to release to the traction referred to, and other fingerstall can then continue to traction strength, is keeping leading Hand function is carried out in the case where gravitation tempers the effect for also promoting the reduction of the fracture；It, can be interim when needs activity wrist joint Wrist Elastic bandage is adjusted to more nervous degree, integrated clamping plate at this time is then equivalent to traditional plintlet；Persistently lead The process drawn inherently has the function of elimination swelling, and the gap of wrist ruler oar side can more retain venous return function (especially cephalic vein), along with early stage effective functional training, the soft tissue swelling situation of fracture segment is available very big Take on a new look；In addition, patient can according to the requirement of doctor and itself impression come the adjustment that be drawn, one hand can complete independently it is all Operation；Meanwhile the utility model could be applicable to multiple fracture of metacarpal bone, specific type fracture of metacarpal bone, ulna Impingement Syndrome and The treatment of articulatio radiocarpea inflammation.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the side view of the utility model forearm palmar clamping plate and traction device；

Fig. 2 is the bottom view of the utility model forearm palmar clamping plate and traction device；

Fig. 3 is the side view of the utility model palm dorsal fitting splint；

Fig. 4 is the top view of the utility model palm dorsal fitting splint；

Fig. 5 is the side view of the utility model dorsal forearm clamping plate；

Fig. 6 is the structure chart of the utility model finger traction casing；

Fig. 7 is the structure chart of the utility model column silicagel pad；

Fig. 8 is using renderings the utility model early period (not illustrating Elastic bandage and silicagel pad)；

Fig. 9 is the utility model later period using renderings (not illustrating Elastic bandage and silicagel pad).

Description of symbols

1. forearm palmar clamping plate；2. palm dorsal fitting splint；8. dorsal forearm clamping plate；12. sponge；13. buckle teeth area；14. gold medal Belong to piece；15. metal tube；16. fixing screws；17. air hole；24. metal bar；25. palm dorsal fitting splint Elastic bandage；31. leading Draw bar straight-bar；32. Y-shaped bends arm；33. drawing bar joint；34. draw bar joint screw；35. Y-shaped bends wave arc；36. wave Line pipe；37. bellows screw；41. plastic fastener；42. detaining handle；43. fastener screw；44. buckle teeth；51. clamping plate side opening；Before 52. Arm palmar clamping plate proximal end Elastic bandage；53. velcro；54. forearm palmar clamping plate distal end Elastic bandage；61. finger traction casing； 62. closing up button；63. metal retaining ring；64. snap switch；71. column silicagel pad；72. stringer is open.

Specific embodiment

The utility model is described in further detail With reference to embodiment.

As shown in FIG. 1 to FIG. 2,1 main body of palm dorsal fitting splint is rigid plastic sheet, and human contact face is compounded with breathable The form and the back of the hand and wrist of sponge 12, rigid plastic sheet and sponge 12 are conformal, and keep roomy in wrist, and plate back two sides are each There is a sheet metal 14, which is fixed on rigid plastic sheet by fixing screws 16, and 14 proximal end of sheet metal welds four pieces Symmetrical metal bar 24, metal bar 24 pass through plate and protrude to palmar, and form 75 °~80 ° angles, metal bar with plate For 24 two sides spacing compared with the wrist joint ruler oar side wide 1~5mm of spacing, the length for protruding 1 part of clamping plate is smaller than carpal thickness by 2 ~5mm is provided with a strip clamping plate side opening 51 in the side of 1 proximal end of palm dorsal fitting splint, is provided with palm in side opening 51 Dorsal fitting splint Elastic bandage 25, can be fixed by velcro 53, and multiple air holes 17 are spread in the middle part of plate, and the component is multiple in fracture Early application behind position.

As shown in figure 3, its structure of dorsal forearm clamping plate 8 is similar to palm dorsal fitting splint 2, but its main body is longer, metal bar 24 angles formed with plate are 93 °~95 °, and the position distribution and height of the metal bar 24 are identical as palm dorsal fitting splint 2, Installation direction and palm dorsal fitting splint 2 are on the contrary, phase use, the distal end side of dorsal forearm clamping plate 8 are equally elastic after the treatment Bandage and velcro 53 design.

As shown in Fig. 4~Fig. 5,1 its structure of forearm palmar clamping plate is similar to dorsal forearm clamping plate 8, but its four pieces symmetrical point The columnar metal structure of cloth is metal tube 15, and the angle that metal tube 15 and plate are formed is right angle, internal diameter compared with metal bar 24 outside Big 1~the 1.5mm of diameter, metal tube 15 can be docked with metal bar 24 and be inserted in, the distributing position and height and metal bar 24 of metal tube 15 It is identical.1 distal end bottom surface of clamping plate has a bellows 36 laterally to be bridged the sheet metal 14 for being fixed on clamping plate two sides by bellows screw 37 On, it can be accommodated in bellows 36 and limit draw bar straight-bar 31.Buckle teeth area 13, buckle teeth are provided in the middle part of 1 proximal end bottom surface of clamping plate Towards distally directed, buckle teeth area 13 is arranged on one side there are two clamping plate side opening 51, is respectively used to fixed forearm palmar clamping plate proximal end Elastic bandage 52 and forearm palmar clamping plate distal end Elastic bandage 54 are equipped with velcro 53 on Elastic bandage and facilitate fixation.

As shown in Fig. 4~Fig. 5, traction device is by finger traction casing 61, draw bar straight-bar 31, Y-shaped bow arm 32 and plastics Fastener 41 forms, and traction device is connected on forearm palmar clamping plate 1 and uses, and the distal end of draw bar straight-bar 31 passes through traction bar joint 33 are connected with Y-shaped bow arm 32, have one piece of draw bar joint screw 34 at traction bar joint 33, Y-shaped can control to bend arm 32 Bend and stretch angle, Y-shaped bends the two-arm width 10~20mm big compared with palm width of arm 32, and wave is bent by Y-shaped in the distal end of two-arm It is whole that unrestrained arc 35 is connected as an annular.31 proximal end of draw bar straight-bar becomes flat, is connected by fastener screw 43 with plastic fastener 41, moulds Material fastener 41 is cuboid, and there is the buckle teeth 44 of number row's row arrangement in top surface, and the direction of the buckle teeth 44 is directed toward proximal end, with forearm The buckle teeth area 13 of 1 proximal end bottom surface of palmar clamping plate can be mutually twisted, and the proximal end of plastic fastener 41 convexes to form button 42 to bottom surface.

As shown in fig. 6, finger traction casing 61 be reticular structure, woven using polyester fiber, distal end with close up detain 62 tightenings, then are connected with metal retaining ring 63, there is snap switch 64 on metal retaining ring 63, snap switch 64 can padlock in Y-shaped bow In wave arc 35.

As shown in fig. 7, column silicagel pad 71 is equipped with a relatively narrow stringer opening 72, top view is in " C " shape, and internal diameter can be adapted to The outer diameter of metal tube 15 is inserted in metal tube 15 when needing and assisting and correct lateral displacement and uses.

It is illustrated in figure 8 effect picture of the utility model when using early period, is accurate layout folder plate and traction device knot Structure does not illustrate Elastic bandage and silicagel pad.

It is illustrated in figure 9 effect picture of the utility model when using in the later period, is accurate layout folder plate and traction device knot Structure does not illustrate Elastic bandage and silicagel pad.

The specifically used method of the utility model is the side for needing to draw after first being resetted according to fracture situation judgement before resetting To, and first pass through bellows 36 in advance and draw bar joint 33 and mix up traction angle；When the manipulative reduction for completing fracture of distal radius Afterwards, forearm palmar clamping plate 1 is placed in forearm palmar, makes fracture segment between metal tube 15, and is close with forearm palmar clamping plate It is fixed to hold Elastic bandage 52, then the metal bar 24 of palm dorsal fitting splint 2 is docked into insertion with 15 4 foot of metal tube, and carried on the back with palm Side clamping plate Elastic bandage 25 is fixed, and early stage Elastic bandage pressurizes dynamics can be slightly larger；It is then successively inserted in finger traction casing 61, and will Metal retaining ring 63 successively buckles into Y-shaped bow wave arc 35, and Pressing fastener reaches suitable traction dynamics 42, then by forearm palmar Clamping plate distal end Elastic bandage 54 fastens, this Elastic bandage can further limit the displacement of plastic fastener 41；In next step then according to multiple The concrete condition for looking into X-ray film decides whether to adjust again, and lateral displacement needs to correct if it exists, can be inserted in column silicagel pad 71 The diagonal positions of metal tube 15 adjust；It, can be by the snap switch on finger traction casing 61 when needs activity finger-joint 64 open, and to release to the traction referred to, and other fingerstall can equally maintain traction strength；It, can when needs activity wrist joint Palm dorsal fitting splint Elastic bandage 25 is temporarily adjusted to more nervous degree, at this moment, integrated clamping plate can play and tradition The identical effect of plintlet allows wrist joint appropriateness activity；All set-up procedures can be completed by patient's one-handed performance, 2-3 Doctor is contemplated that according to check situation after week is changed to dorsal forearm clamping plate 8, the direction of traction and power for palm dorsal fitting splint 2 Degree can adjust again, if no longer being drawn, can individually remove traction device.

Above-described embodiment only is used to further illustrate that a kind of finger traction reduction of the utility model is fixed to integration clamping plate, But the utility model is not limited to embodiment, and made by the above technical examples according to the technical essence of the present invention What simple modification, equivalent change and modification, each falls in the protection scope of technical solutions of the utility model.

Claims (10)

1. a kind of finger traction reduction is fixed to integration clamping plate, it is characterised in that: including palm dorsal fitting splint (2), dorsal forearm The traction device and column silicagel pad (71) of clamping plate (8), forearm palmar clamping plate (1) and its connection, palm dorsal fitting splint (2) Wrist is distributed on and the four pieces of metal bars (24) protruded to palmar and forearm palmar clamping plate (1) symmetrical by its wrist two sides Position is identical and is inserted in docking to four pieces of metal tubes (15) that back side protrudes, and traction device has the plastics of buckle teeth by its proximal end Fastener (41) forms dentation with the buckle teeth area (13) with buckle teeth being arranged in the middle part of forearm palmar clamping plate (1) proximal end bottom surface and is engaged company It connects, and in the traction device other end, it can then be connect with finger by finger traction casing (61).

2. finger traction reduction according to claim 1 is fixed to integration clamping plate, it is characterised in that: the palm back side Clamping plate (2) main body is rigid plastic sheet, and human contact face is compounded with breathable sponge (12), rigid plastic sheet and sponge (12) Form and the back of the hand and wrist are conformal, and keep roomy in wrist, and plate back two sides respectively have a sheet metal (14), and the sheet metal is logical It crosses fixing screws (16) to be fixed on rigid plastic sheet, four pieces of symmetrical metal bars (24), metal are welded in sheet metal proximal end Stick (24) passes through plate and protrudes to palmar, and forms 75 °~80 ° angles with plate, and the two sides spacing of metal bar (24) is closed compared with wrist The section ruler oar side wide 1~5mm of spacing, the length for protruding clamping plate part is 2~5mm smaller than carpal thickness, presss from both sides in palm back side The side of plate (2) proximal end is provided with a strip clamping plate side opening (51), is provided with palm dorsal fitting splint Elastic bandage in side opening (25), can be fixed by velcro (53), multiple air holes (17) are spread in the middle part of plate, which makes in early days after the reduction of the fracture With.

3. finger traction reduction according to claim 1 is fixed to integration clamping plate, it is characterised in that: the dorsal forearm Clamping plate (8) its structure is similar to palm dorsal fitting splint (2), but its main body is longer, the angle that metal bar (24) and plate are formed It is 93 °~95 °, the position distribution and height of metal bar (24) are identical as palm dorsal fitting splint (2), installation direction and palm back side Clamping plate (2) is on the contrary, the phase uses after the treatment.

4. finger traction reduction according to claim 1 is fixed to integration clamping plate, it is characterised in that: the forearm palmar Clamping plate (1) its structure is similar to dorsal forearm clamping plate (8), but its four pieces symmetrical columnar metal structures are metal tube (15), the angle that metal tube (15) and plate are formed is right angle, and internal diameter is compared with metal bar (24) big 1~1.5mm of outer diameter, metal tube (15) it can dock and be inserted in metal bar (24), the distributing position and height of metal tube (15) are identical as metal bar (24).

5. finger traction reduction according to claim 1 is fixed to integration clamping plate, it is characterised in that: the forearm palmar Its distal end bottom surface of clamping plate (1) has a bellows (36) laterally to be bridged the gold for being fixed on clamping plate (1) two sides by bellows screw (37) Belong on piece (14), can accommodate in bellows (36) and limit draw bar straight-bar (31).

6. finger traction reduction according to claim 1 is fixed to integration clamping plate, it is characterised in that；The forearm palmar Be provided with buckle teeth area (13) in the middle part of its proximal end bottom surface of clamping plate (1), buckle teeth towards distally directed, buckle teeth area (13) are arranged on one side There are two clamping plate side opening (51), are respectively used to fixed forearm palmar clamping plate proximal end Elastic bandage (52) and forearm palmar clamping plate distal end Elastic bandage (54).

7. finger traction reduction according to claim 1 is fixed to integration clamping plate, it is characterised in that: the traction device It is made of finger traction casing (61), draw bar straight-bar (31), Y-shaped bow arm (32) and plastic fastener (41), traction device connection It is used on forearm palmar clamping plate (1)；The distal end of draw bar straight-bar (31) passes through traction bar joint (33) and Y-shaped bow arm (32) It is connected, has one piece of draw bar joint screw (34) at traction bar joint (33), controllable Y-shaped bow arm (32) bends and stretches angle Degree, Y-shaped bend the two-arm width 10~20mm big compared with palm width of arm (32), and wave arc is bent by Y-shaped in the distal end of two-arm (35) it is whole to be connected as an annular.

8. finger traction reduction according to claim 7 is fixed to integration clamping plate, it is characterised in that: the draw bar is straight Bar (31) its proximal end becomes flat, is connected by fastener screw (43) with plastic fastener (41), and plastic fastener (41) is cuboid, There is the buckle teeth (44) of number row's row arrangement in top surface, and the direction of buckle teeth (44) is directed toward proximal end, with forearm palmar clamping plate (1) proximal end bottom surface Buckle teeth area (13) can be mutually twisted, the proximal end of plastic fastener (41) convexes to form button (42) to bottom surface.

9. finger traction reduction according to claim 7 is fixed to integration clamping plate, it is characterised in that: the finger traction Cover (61) be reticular structure, be made of polyester fiber, distal end with close up button (62) tightening, then with metal retaining ring (63) phase Even, have snap switch (64) on metal retaining ring (63), snap switch (64) can padlock in Y-shaped bow wave arc (35).

10. finger traction reduction according to claim 1 is fixed to integration clamping plate, it is characterised in that: the columnar silicon Rubber mat (71) is equipped with a relatively narrow stringer and is open (72), and top view is in " C " shape, and internal diameter can be adapted to the outer diameter of metal tube (15), It needs to assist being inserted in metal tube (15) use when correcting lateral displacement.