CN109009370A

CN109009370A - A kind of regular active type exterior fixing rack of wrist joint

Info

Publication number: CN109009370A
Application number: CN201810794466.1A
Authority: CN
Inventors: 霍仁斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-19
Filing date: 2018-07-19
Publication date: 2018-12-18

Abstract

The present invention relates to a kind of regular active type exterior fixing racks of wrist joint, including proximal end long stent, the short bracket in distal end, proximal end long stent includes proximal stent bar and the proximal end connector sleeve fixed with proximal stent bar one end, and 2 single nail clips being slidably matched with the clamping of proximal stent bar are equipped on proximal stent bar；Distally short bracket includes distal stent bar and the distal end connector sleeve fixed with distal stent bar one end, and 1 double nail clip being slidably matched with the clamping of distal stent bar is equipped on distal stent bar；Universal ball end joint is connected on the proximal end connector sleeve of the proximal end long stent, the distal end connector sleeve of the short bracket in distal end is connected with bulb plane articulation, and the short bracket of proximal end long stent and distal end is cooperatively connected by universal ball end joint, bulb plane articulation.The present invention by loosening the second camshaft, then it is limited unscrew handwheel, fixed into dynamic: it is movable that bulb plane articulation can carry out covering of the fan in the angular range of control, and wrist joint is enable to carry out stretching and beading functional training regularly.

Description

A kind of regular active type exterior fixing rack of wrist joint

Technical field

The present invention relates to a kind of regular active type exterior fixing racks of wrist joint, belong to orthopedic medical device field.

Background technique

Fracture of distal radius especially involves the comminuted fracture of articular surface, the disadvantage fixed outside manipulative reduction plaster slab It is that the supporting role of fracture end cannot be provided, fracture end articular surface is easy to collapse, and fractures and is easy malunion；But advantage is in stone Wrist joint energy fine motion during fixing outside cream support, is conducive to the generation for mitigating, avoiding anchylosis.

Wrist joints moving type bracket is a kind of exterior fixing rack for assisting radius far-end fracture reset to grow, by outer Power traction reduction makes fracture of distal radius be restored to the position before fracture, and wrist joints moving type bracket is fixed on breaking part bone Two sides, the support fixed function of bracket do not shift breaking part skeletal fixation to maintain carpal good reset, promote fracture The growth of bone is healed.The structure of wrist joints moving type bracket used at present are as follows: including proximal end long stent, the short bracket in distal end, Proximal end long stent is linked together with the short bracket in distal end by locking device (ball head locking device, bar bar cramp etc.), is drawn money on credit in proximal end One or more bar nail clips are respectively movably installed on frame, the short bracket in distal end, one or more clip nail holes are provided in bar nail clip.Hand When art, it is implanted into two pieces of Bone traction nails respectively in breaking part bone two sides, the bar nail clip of proximal end long stent clamps breaking part bone one The Bone traction of side is followed closely and is fixed on the long stent of proximal end, and the bar nail clip on the short bracket in distal end clamps the bone of the breaking part bone other side Traction nail is simultaneously fixed on the short bracket in distal end, locks the short bracket of proximal end long stent and distal end in relative position by locking device Tightly.

Major defect existing for the wrist joints moving type bracket of above structure form is: when quasi- fixed breaking part bone, The short bracket of fixed preceding proximal end long stent and distal end is adjusted by locking device (ball head locking device, bar bar cramp etc.), adjusts locking Then be chronically at static stationary state after the completion and cannot movable wrist joint, i.e. " activity " of wrist joints moving type bracket at any time Be it is provisional and cannot be regular, lead to the soft tissue contractures such as wrist joint capsule, be easy wrist joint it is stiff；If faced in the course for the treatment of Shi Songkai locking device (ball head locking device, bar bar cramp etc.) and the exercise of manual traction row wrist joint function, are easy fracture and move again Position；And professional is needed to operate, layman cannot operate, and orthopaedic technique requires height, can not regular carry out function It can take exercise, using there are limitations.

Therefore, a kind of active type wrist joint branch with support fixed function and the regular exercise wrist joint function of energy is researched and developed Frame just has apparent clinical meaning.

Summary of the invention

The purpose of the present invention is to cannot carry out wrist pass at any time after assembling existing for existing Articulatio carpi exterior fixing rack The deficiency for saving functional training, provides a kind of regular active type exterior fixing rack of wrist joint.

The object of the present invention is achieved like this, and a kind of regular active type exterior fixing rack of wrist joint, including proximal end are long Bracket, the short bracket in distal end, proximal end long stent include proximal stent bar and the proximal end connector sleeve fixed with proximal stent bar one end, 2 single nail clips being slidably matched with the clamping of proximal stent bar are installed on proximal stent bar；Distally short bracket includes distal stent Bar and the distal end connector sleeve fixed with distal stent bar one end are equipped on distal stent bar and the clamping of distal stent bar are slided The double nail clips of 1 of cooperation；It is characterized by:

It is connected with universal ball end joint on the proximal end connector sleeve of the proximal end long stent, connects on the distal end connector sleeve of the short bracket in distal end It is connected to bulb plane articulation, the short bracket of proximal end long stent and distal end is cooperatively connected by universal ball end joint, bulb plane articulation；

The universal ball end joint includes multi-directional ball, steel bowl, lock sleeve and camshaft, and steel bowl is placed in the connector sleeve of proximal end, universal The bulb of ball is partially disposed in steel bowl, and locking external threading is tightened on the connector sleeve of proximal end, so that multi-directional ball, steel bowl are placed in always In the connector sleeve of proximal end, multi-directional ball is equipped with the first linking arm, and the first linking arm is pierced by lock sleeve, and is placed in the outer of proximal end connector sleeve Portion, multi-directional ball can in steel bowl universal adjustment so that the first linking arm can outside lock sleeve universal adjustment；That is, lock sleeve screws In on the connector sleeve of proximal end, so that multi-directional ball is connected on the long stent of proximal end, the bulb part of multi-directional ball can freely turn in steel bowl It is dynamic；

Sets of holes are provided on the side wall of the proximal end connector sleeve, camshaft is through in sets of holes, and camshaft is placed in the connector sleeve of proximal end Part is located between the set bottom of steel bowl, proximal end connector sleeve, rotates camshaft, and camshaft can push out compressed steel bowl, and multi-directional ball clamps Between steel bowl, lock sleeve, to lock multi-directional ball；

The bulb plane articulation includes special-shaped multi-directional ball, deformed steel bowl, the second lock sleeve, the second camshaft, handwheel, anti-dropout Bolt, anti-rotational lateral mass, deformed steel bowl and anti-rotational lateral mass contact surface are plane, anti-rotational lateral mass and deformed steel bowl contact surface For plane, deformed steel bowl can move horizontally on anti-rotational lateral mass；Deformed steel bowl, anti-rotational lateral mass are placed in the connector sleeve of distal end, And anti-rotational lateral mass is arc surface backwards to the one side of anti-rotational lateral mass plane, arc surface is equipped with arc surface screw thread, and distal end connects It covers and is equipped with arc-shaped interconnecting piece at the outer wall of import, arc-shaped interconnecting piece is equipped with arc-shaped interconnecting piece screw thread, anti-rotational lateral mass Arc surface and distal end connector sleeve arc-shaped interconnecting piece constitute have externally threaded full circle；The bottom of the abnormal shape multi-directional ball is Plane, special-shaped multi-directional ball are placed in the connector sleeve of distal end, and the bottom of special-shaped multi-directional ball is placed in the plane of anti-rotational lateral mass, special-shaped The bulb of multi-directional ball is partially disposed in deformed steel bowl；Second lock sleeve is threaded onto the arc-shaped interconnecting piece of distal end connector sleeve and prevents On the arc surface for rotating lateral mass, so that special-shaped multi-directional ball, deformed steel bowl, anti-rotational lateral mass are placed in always in the connector sleeve of distal end, and Anti-rotational lateral mass is fixed on distal end connector sleeve, on the second lock sleeve；The abnormal shape multi-directional ball is equipped with the second linking arm, and second connects It connects arm and is pierced by the second lock sleeve, deformed steel bowl horizontal direction can be adjusted along anti-rotational lateral mass, so that the second linking arm can be the The outer horizontal direction of two lock sleeves is adjusted；That is, the bulb of special-shaped multi-directional ball is partially disposed in deformed steel bowl, then put anti-rotational side well Block, the second lock sleeve is threaded onto distal end connector sleeve, on anti-rotational lateral mass, so that special-shaped multi-directional ball, anti-rotational lateral mass are connected to far It holds on short bracket, and the bulb part of special-shaped multi-directional ball can only be freely rotated in deformed steel bowl as covering of the fan；

The second sets of holes are provided on the side wall of the distal end connector sleeve, the second camshaft is through in the second sets of holes, and the second camshaft is set Between the set bottom that the part in the connector sleeve of distal end is located at deformed steel bowl, distal end connector sleeve, the second camshaft, the second cam are rotated Axis can push outwardly on deformed steel bowl, and special-shaped multi-directional ball is clamped between deformed steel bowl, the second lock sleeve, special-shaped universal with locking Ball；

Third sets of holes are provided on the side wall of the distal end connector sleeve, anti-drop bolt passes through third sets of holes and stretches in distal end connector sleeve It is interior, and stretch in anti-drop bolt one end in the connector sleeve of distal end and fixed with the second camshaft bottom, to prevent the second camshaft It is slid from the connector sleeve of distal end；

First linking arm of the multi-directional ball is fixedly connected with the second linking arm of special-shaped multi-directional ball, and the first linking arm, second connect Arm composition integrated connection arm is connect, external screw thread is equipped on integrated connection arm, is equipped with internal screw thread in handwheel, handwheel is threaded onto integrated connection On arm.

The list nail clip includes first single nail clip fixture block, second single nail clip fixture block, third list nail clip fixture block, the 4th single nail clip Fixture block, single nail clip bolt, single nail clip nut, single nail clip spring, single Pin splint pad, first single nail clip fixture block, second single nail clip folder Block, third list nail clip fixture block, the 4th single nail clip fixture block center be equipped with single nail clip circular hole, single nail clip screw bolt passes the 4th Single nail clip fixture block, third list nail clip fixture block, single nail clip spring, second single nail clip fixture block, first single nail clip fixture block, single nail clip pad Piece, and single nail clip nut is threaded on single nail clip bolt of the one end for being pierced by single Pin splint pad；

Second single nail clip fixture block is equipped with second single nail clip fixture block groove, third list nail clip folder towards the one side of third list nail clip fixture block Block is equipped with third list nail clip fixture block groove towards the one side of second single nail clip fixture block, and single nail clip spring is located at second single nail clip folder Between block, third list nail clip fixture block, it is placed in second single nail clip fixture block groove, in third list nail clip fixture block groove, single nail clip spring Elastic force make second single nail clip fixture block, third list nail clip fixture block that there is isolated trend；

First single nail clip fixture block, second single nail clip fixture block opposite side side be respectively equipped with the first Dan Ding being mutually adapted Fixture block groove, second single nail clip fixture block convex block are pressed from both sides, second single nail clip fixture block convex block can be stuck in first single nail clip fixture block groove；The It is recessed that one single nail clip fixture block, second single nail clip fixture block opposite side other side are respectively equipped with the first opposite list nail clip fixture block clip nail Slot, second single nail clip fixture block clip nail groove, first single nail clip fixture block clip nail groove, second single nail clip fixture block clip nail groove surround the One single nail clip clip nail hole；It is additionally provided with proximal end traction nail, proximal end traction nail is sandwiched in first single nail clip clip nail hole；

The third list nail clip fixture block, the 4th single nail clip fixture block opposite side side be respectively equipped with the third Dan Ding being mutually adapted Fixture block convex block, the 4th single nail clip fixture block groove are pressed from both sides, third list nail clip fixture block convex block can be stuck in the 4th single nail clip fixture block groove；The Three single poles folder fixture block, that the 4th single nail clip fixture block opposite side other side is respectively equipped with opposite third list nail clip fixture block clamping bar is recessed Slot, the 4th single nail clip fixture block clamping bar groove, third list nail clip fixture block clamping bar groove, the 4th single nail clip fixture block clamping bar groove surround the Two single nail clip clamping bar holes；

Described second single nail clip fixture block, third list nail clip fixture block opposite side contact surface are the mutually identical concave-convex flank of tooth, so that Second single nail clip fixture block, third list nail clip fixture block can be engaged solid when rotating to desired position by the groove of the concave-convex flank of tooth Required position is scheduled on not slide.

Double nail clips include first pair of nail clip fixture block, second pair of nail clip fixture block, the double nail clip fixture blocks of third, the 4th pair of nail clip Fixture block, double nail clip bolts, double nail clip nuts, double nail clip springs, double Pin splint pads；First pair of nail clip fixture block, second pair of nail clip folder The double nail clip fixture block of block, third, the 4th pair of nail clip fixture block fixture block center be equipped with double nail clip circular holes, double nail clip screw bolt passes The double nail clip fixture blocks of 4th pair of nail clip fixture block, third, double nail clip springs, second pair of nail clip fixture block, first pair of nail clip fixture block, double nail clips Gasket, and double nail clip nuts are threaded on the double nail clip bolts for being pierced by one end of double Pin splint pads；

Second pair of nail clip fixture block is equipped with second pair of nail clip fixture block groove, the double nails of third towards the one side of the double nail clip fixture blocks of third It presss from both sides fixture block and is equipped with the double nail clip fixture block grooves of third towards the one side of second pair of nail clip fixture block, double nail clip springs are located at second pair of nail clip Between the double nail clip fixture blocks of fixture block, third, it is placed in the double nail clip fixture block grooves of second pair of nail clip fixture block groove, third, double nail clip bullets The elastic force of spring makes the double nail clip fixture blocks of second pair of nail clip fixture block, third have isolated trend；

First pair of nail clip fixture block, second pair of nail clip fixture block opposite side are respectively equipped with 2 first pair of nail clips being mutually adapted Fixture block clip nail groove, 2 second pair of nail clip fixture block clip nail grooves, first pair of nail clip fixture block clip nail groove, second pair of nail clip fixture block Clip nail groove surrounds first pair of nail clip clip nail hole；It is additionally provided with distal end traction nail, distal end traction nail is sandwiched in first pair of nail clip clip nail hole；

The double nail clip fixture block of the third, the 4th pair of nail clip fixture block opposite side side be respectively equipped with the double nails of the third being mutually adapted Fixture block convex block, the 4th pair of nail clip fixture block groove are pressed from both sides, the double nail clip fixture block convex blocks of third can be stuck in the 4th pair of nail clip fixture block groove；The It is recessed that three pairs of nail clip fixture blocks, the 4th pair of nail clip fixture block opposite side other side are respectively equipped with the double nail clip fixture block clamping bars of opposite third Slot, the 4th pair of nail clip fixture block clamping bar groove, the double nail clip fixture block clamping bar groove of third, the 4th pair of nail clip fixture block clamping bar groove surround the Two pairs of nail clip clamping bar holes；

The double nail clip fixture block opposite side contact surfaces of second pair of nail clip fixture block, third are the mutually identical concave-convex flank of tooth, so that The double nail clip fixture blocks of second pair of nail clip fixture block, third can be engaged solid when rotating to desired position by the groove of the concave-convex flank of tooth Required position is scheduled on not slide.

The special-shaped multi-directional ball is the irregular sphere that bottom is plane, the distance of the centre of sphere of special-shaped multi-directional ball to plane It is the 1/2 of radius of sphericity, the plane of the side plane of deformed steel bowl and special-shaped multi-directional ball is in the same plane.

It is the irregular steel bowl of plane that the deformed steel bowl, which is the side of part, the central axis of deformed steel bowl to abnormal shape The distance of steel bowl lateral plane is the 1/2 of radius of sphericity, and the side plane of deformed steel bowl and the plane of abnormal shape multi-directional ball are same In a plane.

The anti-rotational lateral mass proximally arrives distal end and is made of four parts: ball face, proximal end half column, intermediate attached column Body, distal end half column；The ball face, intermediate half column, at the top of the half column of distal end is plane at proximal end half column；

When the bulb plane articulation is by the second lock sleeve and the second cam shaft locking, the plane of special-shaped multi-directional ball, deformed steel The side plane of the bowl plane adaptation with anti-rotational lateral mass in the same plane；The distal end half column bottom of anti-rotational lateral mass is flat Face and the second camshaft do not generate pressure；Anti-rotational lateral mass cannot distally be done in short scaffold direction when unclamping the second camshaft It is mobile, axial-rotation can not be carried out around the short bracket in distal end；Special-shaped multi-directional ball, deformed steel bowl can not be around the short brackets in distal end Axial-rotation is carried out, anti-rotational lateral mass inner side plane plays the special-shaped multi-directional ball of limitation and is only capable of rotating in single plane.

First linking arm of the multi-directional ball is the first tack round bar, and the second linking arm of special-shaped multi-directional ball is the second tack Round bar, the center of the second tack round bar are equipped with circular hole, and the first tack round bar is adapted to circular hole, the proximal end of the first tack round bar and the The first pin hole and the second pin hole are issued in two tack round bar distal ends respectively, and pin shaft is connected by the first pin hole and the second pin hole by first Arm, the second linking arm are fastened togather, and multi-directional ball is mutual by respective first linking arm, the second linking arm with special-shaped multi-directional ball It is fixed together.

The handwheel is equipped with internal thread hole, and the second linking arm of special-shaped multi-directional ball is equipped with external screw thread, and handwheel passes through interior Threaded hole is threaded on the external screw thread of the second linking arm, so that handwheel screw thread is threaded on the second linking arm of special-shaped multi-directional ball；It is described The end flat of handwheel is identical as the outer diameter of the first lock sleeve, the second lock sleeve respectively, and handwheel is set on one side towards distal stent There is spherical groove, in the locking of bulb plane articulation and handwheel and the close contact of the second lock sleeve, with special-shaped multi-directional ball, anti-rotation Change one's position block spherical surface adaptation.

First linking arm of the multi-directional ball is less than the first company of other parts in the section start diameter that multi-directional ball connects Arm diameter is connect, to increase the scope of activities of universal ball-joint；What the second linking arm of special-shaped multi-directional ball was connected in special-shaped multi-directional ball Section start diameter is less than the second linking arm diameter of other parts, to increase the movable model of the bulb plane articulation of special-shaped multi-directional ball It encloses.

The camshaft, the second camshaft include nut, cam lever, and the diameter of the both ends cylindrical body of cam lever is identical simultaneously It is adapted to respectively with the second sets of holes, the third sets of holes on the side wall of sets of holes, distal end connector sleeve on the connector sleeve side wall of proximal end, cam lever The minimum diameter at middle part is less than the diameter of the both ends cylindrical body of cam lever；

The cam lever center of second camshaft is equipped with threaded hole, and anti-drop bolt is equipped with and the second camshaft overhead cam The external screw thread that the threaded hole at bar center matches, anti-drop bolt are threaded onto the threaded hole at the second camshaft overhead cam bar center；

The camshaft, the second camshaft, anti-drop bolt head diameter be all larger than sets of holes on corresponding connector sleeve side wall, The diameter of second sets of holes, third sets of holes on connector sleeve side wall is provided with interior hexagonal hole on the outside of nut.

The present invention, which manufactures, to be easy, is easy to use, the beneficial effects of the present invention are:

1, compared with the wrist joints moving type bracket in common double universal ball end joints, single nail clip, double nail clips in the present invention are all Energy universal adjustment can effectively make up the limited deficiency of bulb plane articulation scope of activities；It is first that handwheel and the second lock sleeve is abundant Separation, then adjusting angular range of the invention and static locking function are not less than traditional double bulb joint wrist joint brackets；

It 2, respectively will be in the universal ball end joint that connect with proximal end long stent, the short bracket in distal end, bulb plane articulation attachment device Lock sleeve, cam shaft locking, the present invention just has the fixed function of common Articulatio carpi exterior fixing rack static state；3, in aforementioned base The second camshaft on the short bracket in distal end is loosened on plinth, then it is limited unscrew handwheel, bulb plane articulation can be in the angle of control Covering of the fan activity is carried out in range；Wrist joint gap calibration when manual traction reseting fracture end anatomical reduction and fixed bracket static state Wrist joint gap when often can be broadening up to several millimeters of distances, and the second camshaft is unclamped with bracket longitudinal sliding motion distance when locking only About 1 millimeter, therefore there is no actual influence to the support fixed function at wrist fracture position when the second camshaft of release.

The present invention loosens the second camshaft on the short bracket in distal end after static state is fixed, then it is limited unscrew handwheel, into dynamic State stationary state: bulb plane articulation can carry out covering of the fan activity in the angular range of control, enable wrist joint regularly Stretching and beading functional training is carried out, i.e. the present invention can carry out wrist joint function exercise regularly, can effectively mitigate, prevent wrist joint deadlock Firmly, which is that the present invention is original, is not had by other patented inventions.

Detailed description of the invention

Fig. 1 is configuration schematic diagram of the invention.

Fig. 2 is the structural schematic diagram of universal ball end joint of the invention, bulb plane articulation part.

Fig. 3 is the structural schematic diagram of anti-rotational lateral mass of the invention.

In figure: 1 proximal end long stent, 1-1 proximal stent bar, the proximal end 1-2 connector sleeve, the short bracket in 2 distal ends, 2-1 distal stent Bar, the distal end 2-2 connector sleeve, 3 universal ball end joints, 301 multi-directional balls, 3,011 first tack round bars, 3,012 first pin holes, 302 steel Bowl, 303 lock sleeves, 304 camshafts, 4 bulb plane articulations, 401 special-shaped multi-directional balls, 4,011 second tack round bars, 4012 circular holes, It is 4013 second pin holes, 402 deformed steel bowls, 403 second lock sleeves, 404 second camshafts, 405 anti-drop bolts, 406 anti-rotational Lateral mass, 4061 ball faces, 4062 proximal end half columns, 4063 intermediate half columns, 4064 distal end half columns, 407 handwheels, 4014 pins Axis, 5 single nail clips, the single nail clip clip nail of 5-1 first hole, the single nail clip clamping bar of 5-2 second hole, 501 first single nail clip fixture blocks, 5,011 first Single nail clip fixture block groove, 502 second single nail clip fixture blocks, 5,021 second single nail clip fixture block convex blocks, 503 third list nail clip fixture blocks, 5031 third list nail clip fixture block convex blocks, 504 the 4th single nail clip fixture blocks, 5041 the 4th single nail clip fixture block grooves, 505 single nail clip spiral shells Bolt, 506 single nail clip nuts, 507 single nail clip springs, 508 single Pin splint pads, 509 proximal end traction nails, 6 pairs of nail clips, 6-1 first pair Nail clip clip nail hole, the second pair of nail clip clamping bar hole 6-2,601 first pairs of nail clip fixture blocks, 602 second pairs of nail clip fixture blocks, 603 thirds are double The double nail clip fixture block convex blocks of nail clip fixture block, 6031 thirds, 604 the 4th pairs of nail clip fixture blocks, 6041 the 4th pairs of nail clip fixture block grooves, 605 Double nail clip bolts, 606 pairs of nail clip nuts, 607 pairs of nail clip springs, 608 pairs of Pin splint pads, 609 distal end traction nails.

Specific embodiment

The present invention is described in further detail With reference to embodiment.

A kind of regular active type exterior fixing rack of wrist joint, including proximal end long stent 1, the short bracket 2 in distal end, proximal end is drawn money on credit Frame 1 includes the proximal stent bar 1-1 and proximal end connector sleeve 1-2 fixed with proximal stent one end bar 1-1, in proximal stent bar 1- 2 single nail clips 5 being slidably matched with proximal stent bar 1-1 clamping are installed on 1；Distally short bracket 2 includes distal stent bar 2-1 And it is equipped with and distal stent bar on the distal end connector sleeve 2-2 fixed with distal stent one end bar 2-1, distal stent bar 2-1 1 double nail clip 6 that 2-1 clamping is slidably matched.

Universal ball end joint 3 is connected on the proximal end connector sleeve 1-2 of proximal end long stent 1, the distal end of the short bracket 2 in distal end connects Bulb plane articulation 4 is connected on female connector 2-2, the short bracket 2 of proximal end long stent 1 and distal end is flat by universal ball end joint 3, bulb Face joint 4 is cooperatively connected.

Universal ball end joint 3 includes multi-directional ball 301, steel bowl 302, lock sleeve 303 and camshaft 304, and steel bowl 302 is placed in closely It holds in connector sleeve 1-2, the bulb of multi-directional ball 301 is partially disposed in steel bowl 302, and 303 screw thread of lock sleeve is tightened in proximal end connection It covers on 1-2, so that (302 are placed in always in the connector sleeve 1-2 of proximal end, and the first connection is arranged in multi-directional ball 301 for multi-directional ball 301, steel bowl Arm, the first linking arm are pierced by lock sleeve 303, and are placed in the outside of proximal end connector sleeve 1-2, and multi-directional ball 301 can be ten thousand in steel bowl 302 To adjusting, so that the first linking arm can be in the outer universal adjustment of lock sleeve 303；That is, lock sleeve 303 is tightened in proximal end connector sleeve 1-2 On, so that multi-directional ball 301 is connected on proximal end long stent 1, the bulb part of multi-directional ball 301 can be freely rotated in steel bowl 302.

Sets of holes are provided on the side wall of proximal end connector sleeve 1-2, camshaft 304 is through in sets of holes, and camshaft 304 is placed in proximal end Part in connector sleeve 1-2 is located between the set bottom of steel bowl 302, proximal end connector sleeve 1-2, rotates camshaft 304, camshaft 304 Compressed steel bowl 302 can be pushed out, multi-directional ball 301 is clamped between steel bowl 302, lock sleeve 303, to lock multi-directional ball 301.

Bulb plane articulation 4 includes special-shaped multi-directional ball 401, deformed steel bowl 402, the second lock sleeve 403, the second camshaft 404, handwheel 407, anti-drop bolt 405, anti-rotational lateral mass 406, deformed steel bowl 402 and anti-rotational 406 contact surface of lateral mass are flat Face, anti-rotational lateral mass 406 and 402 contact surface of deformed steel bowl are also plane, deformed steel bowl 402 can on anti-rotational lateral mass 406 water Translation is dynamic；Deformed steel bowl 402, anti-rotational lateral mass 406 are placed in the connector sleeve 2-2 of distal end, and anti-rotational lateral mass 406 is backwards to anti-rotational The one side of lateral mass plane is arc surface, and arc surface is equipped with arc surface screw thread, is equipped with circle at the outer wall of distal end connector sleeve 2-2 import Arc interconnecting piece, arc-shaped interconnecting piece are equipped with arc-shaped interconnecting piece screw thread, and the arc surface of anti-rotational lateral mass 406 is connect with distal end The arc-shaped interconnecting piece for covering 2-2, which is constituted, has externally threaded full circle；The bottom of the abnormal shape multi-directional ball 401 is plane, abnormal shape ten thousand It is placed in the connector sleeve 2-2 of distal end to ball 401, and the bottom of special-shaped multi-directional ball 401 is placed in the plane of anti-rotational lateral mass 406, it is different The bulb of type multi-directional ball 401 is partially disposed in deformed steel bowl 402；Second lock sleeve 403 is threaded onto the circular arc of distal end connector sleeve 2-2 On the arc surface of shape interconnecting piece and anti-rotational lateral mass 406, so that special-shaped multi-directional ball 401, deformed steel bowl 402, anti-rotational lateral mass 406 are placed in always in the connector sleeve 2-2 of distal end, and anti-rotational lateral mass 406 is fixed on distal end connector sleeve 2-2, the second lock sleeve 403 On；The abnormal shape multi-directional ball 401 is equipped with the second linking arm, and the second linking arm is pierced by the second lock sleeve 403, deformed steel bowl 402 It horizontal direction can be adjusted along anti-rotational lateral mass 406, so that the second linking arm can be in the outer horizontal direction tune of the second lock sleeve 403 Section；That is, the bulb of special-shaped multi-directional ball 401 is partially disposed in deformed steel bowl 402, then put anti-rotational lateral mass 406 well, the second locking Set 403 is threaded onto distal end connector sleeve 2-2, on anti-rotational lateral mass 402, so that special-shaped multi-directional ball 401, anti-rotational lateral mass 402 be connected On the short bracket 2 in distal end, and the bulb part of special-shaped multi-directional ball 401 can only be freely rotated in deformed steel bowl 403 as covering of the fan.

The second sets of holes are provided on the side wall of distal end connector sleeve 2-2, the second camshaft 404 is through in the second sets of holes, and second Camshaft 404 is placed in the part in the connector sleeve 2-2 of distal end and is located between the set bottom of deformed steel bowl 402, distal end connector sleeve 2-2, rotation Turn the second camshaft 404, the second camshaft 404 can push outwardly on deformed steel bowl 402, and special-shaped multi-directional ball 401 is clamped in deformed steel Between the 402, second lock sleeve 403 of bowl, to lock special-shaped multi-directional ball 401；

Third sets of holes are provided on the side wall of distal end connector sleeve 2-2, anti-drop bolt 405 passes through third sets of holes and stretches in distal end connection It covers in 2-2, and stretches in 405 one end of anti-drop bolt in the connector sleeve 2-2 of distal end and fixed with 404 bottom of the second camshaft, thus Prevent the second camshaft 404 from sliding from the connector sleeve 2-2 of distal end.

It is fixedly connected in the first linking arm of multi-directional ball 301 with the second linking arm of special-shaped multi-directional ball 401, the first connection Arm, the second linking arm composition integrated connection arm, external screw thread is equipped on integrated connection arm, is equipped with internal screw thread, handwheel in handwheel 407 407 are threaded on integrated connection arm.

The list nail clip 5 include the first single nail clip fixture block 502 of single nail clip fixture block 501, second, third list nail clip fixture block 503, 4th single nail clip fixture block 504, single nail clip bolt 505, single nail clip nut 506, single nail clip spring 507, single Pin splint pad 508, the The one single nail clip fixture block 502 of single nail clip fixture block 501, second, the center of the single nail clip fixture block 504 of third list nail clip fixture block the 503, the 4th are equal Single nail clip circular hole is set, and single nail clip bolt 505 sequentially passes through the 4th single nail clip fixture block 504, third list nail clip fixture block 503, Dan Ding The single nail clip fixture block 501 of the single nail clip fixture block 502, first of spring 507, second, single Pin splint pad 508 are pressed from both sides, and single nail clip nut 506 revolves In on single nail clip bolt 505 of the one end for being pierced by single Pin splint pad 508.

In second single one side of the nail clip fixture block 502 towards third list nail clip fixture block 503, second single nail clip fixture block groove is set, Third list nail clip fixture block groove, single nail clip spring is arranged towards the one side of second single nail clip fixture block 502 in third list nail clip fixture block 503 507 are located between second single nail clip fixture block 502, third list nail clip fixture block 503, are placed in second single nail clip fixture block groove, third list In nail clip fixture block groove, the elastic force of single nail clip spring 507 has second single nail clip fixture block 502, third list nail clip fixture block 503 point From trend.

The side of described first single 502 opposite side of nail clip fixture block of single nail clip fixture block 501, second, which is respectively set, to be mutually adapted The first single nail clip fixture block convex block 5021 of single nail clip fixture block groove 5011, second, second single nail clip fixture block convex block 5021 can be stuck in In first single nail clip fixture block groove 5011；The first single 502 opposite side other side point of nail clip fixture block of single nail clip fixture block 501, second First single nail clip fixture block clip nail groove that She You be not opposite, second single nail clip fixture block clip nail groove, first single nail clip fixture block clip nail Groove, second single nail clip fixture block clip nail groove surround first single nail clip clip nail hole 5-1；Proximal end traction nail 509 is also set up, proximal end is led Draw nail 509 and is sandwiched in first single nail clip clip nail hole 5-1.

It is respectively set and is mutually adapted in the side of single 504 opposite side of nail clip fixture block of third list nail clip fixture block the 503, the 4th The single nail clip fixture block groove 5041 of third list nail clip fixture block convex block the 5031, the 4th, third list nail clip fixture block convex block 5031 can be stuck in the In four single nail clip fixture block grooves 5041；The single 504 opposite side other side difference of nail clip fixture block of third list nail clip fixture block the 503, the 4th Opposite third list nail clip fixture block clamping bar groove, the 4th single nail clip fixture block clamping bar groove are set, and third list nail clip fixture block clamping bar is recessed Slot, the 4th single nail clip fixture block clamping bar groove surround second single nail clip clamping bar hole 5-2.

Second single nail clip fixture block 502,503 opposite side contact surface of third list nail clip fixture block are mutually identical shaggy tooth Face, so that second single nail clip fixture block 502, third list nail clip fixture block 503 can pass through the concave-convex flank of tooth when rotating to desired position Groove engagement be fixed on required position and do not slide.

Double nail clips 6 include first pair of nail clip fixture block, 601, second pairs of nail clip fixture blocks 602, the double nail clip fixture blocks the 603, the 4th of third Double nail clip fixture blocks 604, double nail clip bolts 605, double nail clip nuts 606, double nail clip springs 607, double Pin splint pads 608；First pair The fixture block center of double nail clip 603, the 4th pairs of nail clip fixture blocks 604 of fixture block of 601, second pairs of nail clip fixture blocks 602 of nail clip fixture block, third is Equipped with double nail clip circular holes, double nail clip bolts 605 sequentially pass through the double nail clip fixture blocks 603 of the 4th pair of nail clip fixture block 604, third, double nails 607, second pairs, spring nail clip fixture block 602, first pairs nail clip fixture block 601, double Pin splint pads 608 are pressed from both sides, and double nail clip nuts 606 revolve In on the double nail clip bolts 605 of one end for being pierced by double Pin splint pads 608.

Second pair of nail clip fixture block groove is set towards the one side of the double nail clip fixture blocks 603 of third in second pair of nail clip fixture block 602, Double 603 one sides towards second pair of nail clip fixture block 602 of nail clip fixture block of third are equipped with the double nail clip fixture block grooves of third, double nail clip springs 607 are located between the double nail clip fixture blocks 603 of second pair of nail clip fixture block 602, third, and it is double to be placed in second pair of nail clip fixture block groove, third In nail clip fixture block groove, the elastic force of double nail clip springs 607 has the double nail clip fixture blocks 603 of second pair of nail clip fixture block 602, third point From trend.

2 be mutually adapted are respectively set in first pair of nail clip fixture block, 601, second pairs of 602 opposite sides of nail clip fixture block A pair of nail clip fixture block clip nail groove, 2 second pair of nail clip fixture block clip nail grooves, first pair of nail clip fixture block clip nail groove, second pair Nail clip fixture block clip nail groove surrounds first couple of nail clip clip nail hole 6-1；Distal end traction nail 609 is also set up, distal end traction nail 609 is sandwiched in First couple of nail clip clip nail hole 6-1.It is set respectively in the side of double nail clip 603, the 4th pairs of 604 opposite sides of nail clip fixture block of fixture block of third Set double nail clip fixture block 6031, the 4th pairs of nail clip fixture block grooves 6041 of convex block of the third being mutually adapted, the double nail clip fixture block convex blocks of third 6031 can be stuck in the 4th pair of nail clip fixture block groove 6041；603, the 4th pairs of nail clip fixture blocks 604 of the double nail clip fixture blocks of third opposite one The face other side is respectively equipped with the double nail clip fixture block clip nail grooves of opposite third, the 4th pair of nail clip fixture block clamping bar groove, the double nails of third Folder fixture block clamping bar groove, the 4th pair of nail clip fixture block clamping bar groove surround second couple of nail clip clamping bar hole 6-2；

The double 603 opposite side contact surfaces of nail clip fixture block of second pair of nail clip fixture block 602, third are the mutually identical concave-convex flank of tooth, are made The double nail clip fixture blocks 603 of second pair of nail clip fixture block 602, third are obtained when rotating to desired position, the tooth of the concave-convex flank of tooth can be passed through Line engagement is fixed on required position and does not slide.

The special-shaped multi-directional ball 401 is the irregular sphere that bottom is plane, the centre of sphere of special-shaped multi-directional ball 401 to plane Distance be the 1/2 of radius of sphericity, the plane of the side plane of deformed steel bowl 402 and special-shaped multi-directional ball 401 is in approximately the same plane It is interior.

The deformed steel bowl 402 is that the side of part is the irregular steel bowl of plane, the central axis of deformed steel bowl 402 Distance to 402 lateral plane of deformed steel bowl is the 1/2 of radius of sphericity, the side plane of deformed steel bowl 402 and special-shaped multi-directional ball (401 plane is in the same plane.

The anti-rotational lateral mass 406 proximally arrives distal end and is made of four parts: ball face 4061, proximal end half column 4062, intermediate half column 4063, distal end half column 4064；The ball face 4061, proximal end half column 4062, intermediate half column 4063, the top of distal end half column 4064 is plane.

When bulb plane articulation 4 is locked by the second lock sleeve 403 and the second camshaft 404, special-shaped multi-directional ball 401 is put down Face, deformed steel bowl 402 the side plane plane adaptation with anti-rotational lateral mass 406 in the same plane；Anti-rotational lateral mass 406 4024 bottom plane of distal end half column and the second camshaft 404 do not generate pressure；Unclamp anti-rotational side when the second camshaft 404 Block 406 distally cannot do movement by short 2 long axis direction of bracket, can not carry out axial-rotation around the short bracket 2 in distal end；Abnormal shape ten thousand Axial-rotation can not be carried out around the short bracket 2 in distal end to ball 401, deformed steel bowl 402, anti-rotational 406 inner side plane of lateral mass rises To special-shaped multi-directional ball is limited, (401 are only capable of rotating in single plane.

First linking arm of multi-directional ball 301 is the first tack round bar 3011, and the second linking arm of special-shaped multi-directional ball 401 is the Circular hole 4012, the first tack round bar 3011 and circular hole 4012 is arranged in two tack round bars 4011, the center of the second tack round bar 4011 The first pin hole 3012 and the second pin are issued in adaptation, the proximal end and 4011 distal end of the second tack round bar of the first tack round bar 3011 respectively First linking arm, the second linking arm are fastened on one by the first pin hole 3012 and the second pin hole 4013 by hole 4013, pin shaft 4014 It rises, multi-directional ball (301) and special-shaped multi-directional ball (401) are mutually permanently connected by respective first linking arm, the second linking arm Together.

Internal thread hole is set on handwheel 407, and the second linking arm of special-shaped multi-directional ball 401 is equipped with external screw thread, handwheel 407 It is threaded by internal thread hole on the external screw thread of the second linking arm, so that 407 screw thread of handwheel is threaded onto the second company of special-shaped multi-directional ball 401 It connects on arm；The end flat of the handwheel 407 is identical as the outer diameter of the first lock sleeve 303, the second lock sleeve 403 respectively, handwheel 407 one sides towards distal stent 2 are equipped with spherical groove 4071, in the locking of bulb plane articulation 4 and handwheel 407 and the second lock When fixed 403 close contact, it is adapted to the spherical surface of special-shaped multi-directional ball 401, anti-rotational lateral mass 402.

First linking arm of the multi-directional ball 301 is less than the first of other parts in the section start diameter that multi-directional ball connects Linking arm diameter, to increase the scope of activities in 301 joint of multi-directional ball；Second linking arm of special-shaped multi-directional ball 401 is special-shaped universal The section start diameter that ball 401 connects is less than the second linking arm diameter of other parts, flat with the bulb for increasing special-shaped multi-directional ball 401 The scope of activities in face joint.

Camshaft 304, the second camshaft 404 include nut, cam lever, and the diameter of the both ends cylindrical body of cam lever is identical And it is suitable with the second sets of holes, the third sets of holes on the side wall of sets of holes, distal end connector sleeve 2-2 on the connector sleeve 1-2 side wall of proximal end respectively Match, the minimum diameter in the middle part of cam lever is less than the diameter of the both ends cylindrical body of cam lever；In the cam lever of the second camshaft 404 Threaded hole is arranged in the heart, and the threaded hole at setting and 404 overhead cam bar center of the second camshaft matches outer on anti-drop bolt 405 Screw thread, anti-drop bolt 405 are threaded onto the threaded hole at 404 overhead cam bar center of the second camshaft；Camshaft 304, the second cam Axis 404, anti-drop bolt 405 head diameter be all larger than sets of holes on corresponding connector sleeve 1-2 side wall, connector sleeve 2-2 side wall The diameter of upper second sets of holes, third sets of holes is provided with interior hexagonal hole on the outside of nut.

During surgery, after traction radius far-end fracture reset is good, 2 holes is bored in second metacarpal bone back side and tighten two pieces of distal ends Distal end traction nail 609 is connected on the short bracket 2 in distal end by traction nail 609 by double nail clips；2 holes are bored on radius to twist Two pieces of proximal end traction nails 509 are connected on proximal end long stent 1 by tight two pieces of proximal end traction nails 509 by two pieces of single nail clips 5；Closely It holds in the proximal end connector sleeve 1-2 on long stent 1 on the opposite end face proximal stent bar 1-1 and universal ball end joint 3 and places steel bowl 302, the bulb of multi-directional ball 301 is partially disposed in steel bowl 302, and multi-directional ball 301 is connected to proximal end by screw thread by lock sleeve 303 On long stent 1, camshaft 304 is installed in the sets of holes of the proximal end connector sleeve 1-2 of proximal end long stent 1；In distal end, short bracket 2 is remote The second sets of holes, the third sets of holes of end connector sleeve 2-2 install the second camshaft 404 and anti-drop bolt 405, the short branch in distal end respectively Deformed steel bowl 402, special-shaped multi-directional ball 401 are placed in distal end connector sleeve 2-2 on frame 2 and the opposite end face of bulb plane articulation 4 Bulb be partially disposed in deformed steel bowl 402, adjustment deformed steel bowl 402, the bottom plane of special-shaped multi-directional ball 401 and distal end The lateral incision face of the distal end connector sleeve 2-2 of short bracket 2 in the same plane, by anti-rotational 406 top planes of lateral mass and above-mentioned component Side plane installation adaptation, universal ball end joint 3,4 attachment device of bulb plane articulation pass through the threaded connection of the second lock sleeve 403 On the short bracket 2 in distal end.

Adjust the position of regular active type exterior fixing rack, wherein the plane motion direction of bulb plane articulation 4 with The direction for intending stretching and beading functional training after wrist joint replacement and fixation is consistent, locks all two pieces 5, one pieces of single nail clip double nail clips 6, lock Fixed 303, second lock sleeve 403, secondly lock cam axis 304, the second camshaft 404, again put down handwheel 407 with respect to bulb Second lock sleeve 403 in face joint 4 is tightened, and realizes that the static state of traditional Articulatio carpi exterior fixing rack is fixed.

Then, one piece of second camshaft 404 of bulb plane articulation 4 is loosened, finally closes handwheel 407 with respect to bulb plane Second lock sleeve 403 of section 4 is limited to be unscrewed, and the short bracket 2 in distal end just makees covering of the fan movement, motion amplitude model with bulb plane articulation 4 Enclosing can be adjusted by handwheel 407, realized wrist joint and really dynamically fixed, can reach the mesh of regular functional training 's.

The regular active type bracket of the wrist joint of above structure, static fixation create wrist pass in conjunction with dynamic stationary phase Save the regular new function for carrying out stretching and beading functional training of the fixed energy of bracket；Easy to operate, safety coefficient is higher；It must professional technique Personnel install for the first time；Later non-specialized-technical personnel can periodically carry out wrist joint function forging in the case where professional technician instructs Refining, the complication such as prevention anchylosis.

Above-described is only some embodiments of the present invention, it is noted that for those of ordinary skill in the art For, under the premise of not departing from concept of the invention, other modification and improvement can also be made, these belong to this hair Bright protection scope.

Claims

1. a kind of regular active type exterior fixing rack of wrist joint, including proximal end long stent (1), the short bracket (2) in distal end, proximal end is long Bracket (1) includes proximal stent bar (1-1) and the proximal end connector sleeve (1-2) fixed with proximal stent bar one end (1-1), proximal end 2 single nail clips (5) being slidably matched with proximal stent bar (1-1) clamping are installed on cradling piece (1-1)；Distally short bracket (2) Including distal stent bar (2-1) and the distal end connector sleeve (2-2) fixed with distal stent bar one end (2-1), distal stent bar 1 double nail clip (6) being slidably matched with distal stent bar (2-1) clamping is installed on (2-1)；It is characterized by:

It is connected with universal ball end joint (3) on the proximal end connector sleeve (1-2) of the proximal end long stent (1), the short bracket (2) in distal end It is connected on distal end connector sleeve (2-2) bulb plane articulation (4), the short bracket (2) of proximal end long stent (1) and distal end passes through multi-directional ball Head joint (3), bulb plane articulation (4) are cooperatively connected；

The universal ball end joint (3) includes multi-directional ball (301), steel bowl (302), lock sleeve (303) and camshaft (304), steel Bowl (302) is placed in proximal end connector sleeve (1-2), and the bulb of multi-directional ball (301) is partially disposed in steel bowl (302), lock sleeve (303) screw thread is tightened on proximal end connector sleeve (1-2), so that multi-directional ball (301), steel bowl (302) are placed in proximal end connector sleeve always In (1-2), multi-directional ball (301) is equipped with the first linking arm, and the first linking arm is pierced by lock sleeve (303), and is placed in proximal end connection The outside of (1-2) is covered, multi-directional ball (301) can be in steel bowl (302) interior universal adjustment, so that the first linking arm can be in lock sleeve (303) outer universal adjustment；That is, lock sleeve (303) is tightened on proximal end connector sleeve (1-2), so that multi-directional ball (301) is connected to closely It holds on long stent (1), the bulb part of multi-directional ball (301) can be freely rotated in steel bowl (302)；

Sets of holes are provided on the side wall of the proximal end connector sleeve (1-2), camshaft (304) is through in sets of holes, and camshaft (304) is placed in Part in proximal end connector sleeve (1-2) is located between the set bottom of steel bowl (302), proximal end connector sleeve (1-2), rotates camshaft (304), camshaft (304) can push out compressed steel bowl (302), multi-directional ball (301) be clamped in steel bowl (302), lock sleeve (303) it Between, to lock multi-directional ball (301)；

The bulb plane articulation (4) includes special-shaped multi-directional ball (401), deformed steel bowl (402), the second lock sleeve (403), the Two camshafts (404), handwheel (407), anti-drop bolt (405), anti-rotational lateral mass (406), deformed steel bowl (402) and anti- Rotation lateral mass (406) contact surface is plane, and anti-rotational lateral mass (406) and deformed steel bowl (402) contact surface are also plane, deformed steel Bowl (402) can move horizontally on anti-rotational lateral mass (406)；Deformed steel bowl (402), anti-rotational lateral mass (406) are placed in distal end and connect In female connector (2-2), and anti-rotational lateral mass (406) is arc surface backwards to the one side of anti-rotational lateral mass plane, and arc surface is equipped with circle Cambered surface screw thread, arc-shaped interconnecting piece is equipped at the outer wall of distal end connector sleeve (2-2) import, and arc-shaped interconnecting piece is equipped with arc-shaped Interconnecting piece screw thread, the arc surface of anti-rotational lateral mass (406) and the arc-shaped interconnecting piece of distal end connector sleeve (2-2) constitute and have outer spiral shell The full circle of line；The bottom of the abnormal shape multi-directional ball (401) is plane, and special-shaped multi-directional ball (401) is placed in distal end connector sleeve (2-2) It is interior, and the bottom of special-shaped multi-directional ball (401) is placed in the plane of anti-rotational lateral mass (406), the ball head of special-shaped multi-directional ball (401) Divide and is placed in deformed steel bowl (402)；Second lock sleeve (403) be threaded onto distal end connector sleeve (2-2) arc-shaped interconnecting piece and On the arc surface of anti-rotational lateral mass (406), so that special-shaped multi-directional ball (401), deformed steel bowl (402), anti-rotational lateral mass (406) beginning It is placed in distal end connector sleeve (2-2) eventually, and anti-rotational lateral mass (406) is fixed on distal end connector sleeve (2-2), the second lock sleeve (403) on；The abnormal shape multi-directional ball (401) is equipped with the second linking arm, and the second linking arm is pierced by the second lock sleeve (403), Deformed steel bowl (402) horizontal direction can be adjusted along anti-rotational lateral mass (406), so that the second linking arm can be in the second lock sleeve (403) outer horizontal direction is adjusted；That is, the bulb of special-shaped multi-directional ball (401) is partially disposed in deformed steel bowl (402), then put well Anti-rotational lateral mass (406), the second lock sleeve (403) is threaded onto distal end connector sleeve (2-2), on anti-rotational lateral mass (402), thus by different Type multi-directional ball (401), anti-rotational lateral mass (402) are connected on the short bracket (2) in distal end, and the bulb of special-shaped multi-directional ball (401) Part can only be freely rotated in deformed steel bowl (403) as covering of the fan；

The second sets of holes are provided on the side wall of the distal end connector sleeve (2-2), the second camshaft (404) is through in the second sets of holes, the The part that two camshafts (404) are placed in distal end connector sleeve (2-2) is located at the set of deformed steel bowl (402), distal end connector sleeve (2-2) It between bottom, rotates the second camshaft (404), the second camshaft (404) can push outwardly on deformed steel bowl (402), special-shaped multi-directional ball (401) it is clamped between deformed steel bowl (402), the second lock sleeve (403), to lock special-shaped multi-directional ball (401)；

Third sets of holes are provided on the side wall of the distal end connector sleeve (2-2), anti-drop bolt (405) passes through third sets of holes and stretches in far It holds in connector sleeve (2-2), and stretches in anti-drop bolt (405) one end in distal end connector sleeve (2-2) and the second camshaft (404) Bottom is fixed, to prevent the second camshaft (404) from sliding from distal end connector sleeve (2-2)；

First linking arm of the multi-directional ball (301) is fixedly connected with the second linking arm of special-shaped multi-directional ball (401), the first connection Arm, the second linking arm composition integrated connection arm, external screw thread is equipped on integrated connection arm, is equipped with internal screw thread, hand in handwheel (407) Wheel (407) is threaded on integrated connection arm.

2. the regular active type exterior fixing rack of a kind of wrist joint according to claim 1, it is characterised in that: the Dan Ding Pressing from both sides (5) includes first single nail clip fixture block (501), second single nail clip fixture block (502), third list nail clip fixture block (503), the 4th Dan Ding Fixture block (504), single nail clip bolt (505), single nail clip nut (506), single nail clip spring (507), single Pin splint pad (508) are pressed from both sides, First single nail clip fixture block (501), second single nail clip fixture block (502), third list nail clip fixture block (503), the 4th single nail clip fixture block (504) center is equipped with single nail clip circular hole, and single nail clip bolt (505) sequentially passes through the 4th single nail clip fixture block (504), third list Nail clip fixture block (503), single nail clip spring (507), second single nail clip fixture block (502), first single nail clip fixture block (501), single nail clip Gasket (508), and single nail clip nut (506) is threaded on single nail clip bolt (505) of the one end for being pierced by single Pin splint pad (508)；

Second single nail clip fixture block (502) is equipped with second single nail clip fixture block groove towards the one side of third list nail clip fixture block (503), the Three single nail clip fixture blocks (503) are equipped with third list nail clip fixture block groove, single nail clip bullet towards the one side of second single nail clip fixture block (502) Spring (507) is located between second single nail clip fixture block (502), third list nail clip fixture block (503), and it is recessed to be placed in second single nail clip fixture block In slot, third list nail clip fixture block groove, the elastic force of single nail clip spring (507) makes second single nail clip fixture block (502), third list nail clip Fixture block (503) has isolated trend；

First single nail clip fixture block (501), second single nail clip fixture block (502) opposite side side be respectively equipped with and be mutually adapted First single nail clip fixture block groove (5011), second single nail clip fixture block convex block (5021), second single nail clip fixture block convex block (5021) It can be stuck in first single nail clip fixture block groove (5011)；First single nail clip fixture block (501), second single nail clip fixture block (502) are opposite The other side is respectively equipped with the single nail clip fixture block clip nail groove of opposite first, second single nail clip fixture block clip nail groove on one side, and first is single Nail clip fixture block clip nail groove, second single nail clip fixture block clip nail groove surround first single nail clip clip nail hole (5-1)；Proximal end is additionally provided with to lead Draw nail (509), proximal end traction nail (509) is sandwiched in first single nail clip clip nail hole (5-1)；

The third list nail clip fixture block (503), the 4th single nail clip fixture block (504) opposite side side be respectively equipped with and be mutually adapted Third list nail clip fixture block convex block (5031), the 4th single nail clip fixture block groove (5041), third list nail clip fixture block convex block (5031) It can be stuck in the 4th single nail clip fixture block groove (5041)；Third list nail clip fixture block (503), the 4th single nail clip fixture block (504) are opposite The other side is respectively equipped with opposite third list nail clip fixture block clamping bar groove, the 4th single nail clip fixture block clamping bar groove, third list on one side Nail clip fixture block clamping bar groove, the 4th single nail clip fixture block clamping bar groove surround second single nail clip clamping bar hole (5-2)；

Described second single nail clip fixture block (502), third list nail clip fixture block (503) opposite side contact surface are mutually identical bumps The flank of tooth, so that second single nail clip fixture block (502), third list nail clip fixture block (503) be when rotating to desired position, it can be by recessed The groove engagement of convex side is fixed on required position and does not slide.

3. the regular active type exterior fixing rack of a kind of wrist joint according to claim 1, it is characterised in that: double nails Pressing from both sides (6) includes first pair of nail clip fixture block (601), second pair of nail clip fixture block (602), the double nail clip fixture blocks (603) of third, the 4th pair of nail Press from both sides fixture block (604), double nail clip bolts (605), double nail clip nuts (606), double nail clip springs (607), double Pin splint pads (608)； First pair of nail clip fixture block (601), second pair of nail clip fixture block (602), third double nail clip fixture blocks (603), the 4th pair of nail clip fixture block (604) fixture block center is equipped with double nail clip circular holes, and double nail clip bolts (605) sequentially pass through the 4th pair of nail clip fixture block (604), the It is three pairs of nail clip fixture blocks (603), double nail clip springs (607), second pair of nail clip fixture block (602), first pair of nail clip fixture block (601), double Pin splint pad (608), and double nail clip nuts (606) are threaded onto the double nail clip bolts (605) for being pierced by one end of double Pin splint pads (608) On；

One side of the second pair of nail clip fixture block (602) towards the double nail clip fixture blocks (603) of third is recessed equipped with second pair of nail clip fixture block Slot, the double nail clip fixture blocks (603) of third are equipped with the double nail clip fixture block grooves of third towards the one side of second pair of nail clip fixture block (602), double Nail clip spring (607) is located between second pair of nail clip fixture block (602), the double nail clip fixture blocks (603) of third, is placed in second pair of nail clip folder In the double nail clip fixture block grooves of block groove, third, the elastic force of double nail clip springs (607) keeps second pair of nail clip fixture block (602), third double Nail clip fixture block (603) has isolated trend；

First pair of nail clip fixture block (601), second pair of nail clip fixture block (602) opposite side are respectively equipped with 2 be mutually adapted First pair of nail clip fixture block clip nail groove, 2 second pair of nail clip fixture block clip nail grooves, first pair of nail clip fixture block clip nail groove, second Double nail clip fixture block clip nail grooves surround first pair of nail clip clip nail hole (6-1)；It is additionally provided with distal end traction nail (609), distal end traction nail (609) it is sandwiched in first pair of nail clip clip nail hole (6-1)；

The double nail clip fixture block (603) of the third, the 4th pair of nail clip fixture block (604) opposite side side be respectively equipped with and be mutually adapted Third double nail clip fixture block convex blocks (6031), the 4th pair of nail clip fixture block groove (6041), the double nail clip fixture block convex blocks (6031) of third It can be stuck in the 4th pair of nail clip fixture block groove (6041)；The double nail clip fixture blocks (603) of third, the 4th pair of nail clip fixture block (604) are opposite The other side is respectively equipped with the double nail clip fixture block clamping bar grooves of opposite third, the 4th pair of nail clip fixture block clamping bar groove on one side, and third is double Nail clip fixture block clamping bar groove, the 4th pair of nail clip fixture block clamping bar groove surround second pair of nail clip clamping bar hole (6-2)；

Second pair of nail clip fixture block (602), double nail clip fixture block (603) the opposite side contact surfaces of third are mutually identical bumps The flank of tooth, so that second pair of nail clip fixture block (602), the double nail clip fixture blocks (603) of third are when rotating to desired position, it can be by recessed The groove engagement of convex side is fixed on required position and does not slide.

4. the regular active type exterior fixing rack of a kind of wrist joint according to claim 1, it is characterised in that: described is different Type multi-directional ball (401) is the irregular sphere that bottom is plane, and the distance of the centre of sphere to the plane of special-shaped multi-directional ball (401) is sphere The plane of the 1/2 of radius, the side plane of deformed steel bowl (402) and special-shaped multi-directional ball (401) is in the same plane.

5. the regular active type exterior fixing rack of a kind of wrist joint according to claim 1, it is characterised in that: described is different It is the irregular steel bowl of plane that fashioned iron bowl (402), which is the side of part, the central axis of deformed steel bowl (402) to deformed steel bowl (402) distance of lateral plane is the 1/2 of radius of sphericity, the side plane of deformed steel bowl (402) and putting down for abnormal shape multi-directional ball (401) Face is in the same plane.

6. the regular active type exterior fixing rack of a kind of wrist joint according to claim 1, it is characterised in that: described is anti- Rotation lateral mass (406) is proximally arrived distal end and is made of four parts: ball face (4061), proximal end half column (4062), intermediate attached column Body (4063), distal end half column (4064)；The ball face (4061), proximal end half column (4062), intermediate half column (4063), Distal end half column is plane at the top of (4064)；

When the bulb plane articulation (4) is locked by the second lock sleeve (403) and the second camshaft (404), special-shaped multi-directional ball (401) side plane of plane, deformed steel bowl (402) the plane adaptation with anti-rotational lateral mass (406) in the same plane； Distal end half column (4024) bottom plane of anti-rotational lateral mass (406) and the second camshaft (404) do not generate pressure；Unclamp second Anti-rotational lateral mass (406) distally cannot do movement by short bracket (2) long axis direction when camshaft (404), can not be around distal end Short bracket (2) carries out axial-rotation；Special-shaped multi-directional ball (401), deformed steel bowl (402) can not around the short bracket (2) in distal end into Row axial-rotation, anti-rotational lateral mass (406) inner side plane play the special-shaped multi-directional ball (401) of limitation and are only capable of in single plane inward turning Turn.

7. the regular active type exterior fixing rack of a kind of wrist joint according to claim 1, it is characterised in that: described universal First linking arm of ball (301) is the first tack round bar (3011), and the second linking arm of special-shaped multi-directional ball (401) is the second tack The center of round bar (4011), the second tack round bar (4011) is equipped with circular hole (4012), the first tack round bar (3011) and circular hole (4012) it is adapted to, the first pin hole is issued in the proximal end of the first tack round bar (3011) and the second tack round bar (4011) distal end respectively (3012) and the second pin hole (4013), pin shaft (4014) are connected by the first pin hole (3012) and the second pin hole (4013) by first Arm, the second linking arm are fastened togather, and multi-directional ball (301) and special-shaped multi-directional ball (401) pass through respective first linking arm, second Linking arm is mutually permanently connected together.

8. the regular active type exterior fixing rack of a kind of wrist joint according to claim 1, it is characterised in that: the handwheel (407) it is equipped with internal thread hole, the second linking arm of special-shaped multi-directional ball (401) is equipped with external screw thread, and handwheel (407) passes through interior spiral shell Pit is threaded on the external screw thread of the second linking arm, so that handwheel (407) screw thread is threaded onto the second linking arm of special-shaped multi-directional ball (401) On；The end flat of the handwheel (407) is identical as the outer diameter of the first lock sleeve (303), the second lock sleeve (403) respectively, hand It takes turns (407) and is equipped with spherical groove (4071) towards the one side of distal stent (2), in bulb plane articulation (4) locking and handwheel (407) it when being in close contact with the second lock sleeve (403), is adapted to the spherical surface of special-shaped multi-directional ball (401), anti-rotational lateral mass (402).

9. the regular active type exterior fixing rack of a kind of wrist joint according to claim 1, it is characterised in that: described ten thousand The section start diameter connected to the first linking arm of ball (301) in multi-directional ball is less than the first linking arm diameter of other parts, with Increase the scope of activities in multi-directional ball (301) joint；Second linking arm of special-shaped multi-directional ball (401) connects in special-shaped multi-directional ball (401) The section start diameter connect is less than the second linking arm diameter of other parts, is closed with increasing the bulb plane of special-shaped multi-directional ball (401) The scope of activities of section.

10. the regular active type exterior fixing rack of a kind of wrist joint according to claim 1, it is characterised in that: described convex Wheel shaft (304), the second camshaft (404) include nut, cam lever, and the diameter of the both ends cylindrical body of cam lever is identical and distinguishes It is adapted to the second sets of holes, the third sets of holes on the side wall of sets of holes, distal end connector sleeve (2-2) on proximal end connector sleeve (1-2) side wall, Minimum diameter in the middle part of cam lever is less than the diameter of the both ends cylindrical body of cam lever；

The cam lever center of second camshaft (404) is equipped with threaded hole, anti-drop bolt (405) be equipped with it is second convex The external screw thread that the threaded hole at wheel shaft (404) overhead cam bar center matches, anti-drop bolt (405) are threaded onto the second camshaft (404) in the threaded hole at overhead cam bar center；

The camshaft (304), the second camshaft (404), anti-drop bolt (405) head diameter be all larger than corresponding connection Cover sets of holes on (1-2) side wall, on connector sleeve (2-2) side wall the second sets of holes, third sets of holes diameter, be respectively provided on the outside of nut There is interior hexagonal hole.