CN2225849Y

CN2225849Y - Multi-segmented multi-functional external bone fixator

Info

Publication number: CN2225849Y
Application number: CN 95210508
Authority: CN
Inventors: 王兆年
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-05
Filing date: 1995-05-05
Publication date: 1996-05-01
Anticipated expiration: 2005-05-05

Abstract

The utility model relates to a multi-segment multi-functional external bone fixer, mainly composed of a thigh movable segment connecting rod, a shank movable segment connecting rod, a movable segment connecting rod arch-shaped connecting plate, an arch-shaped connecting plate, a single arm fixing plate, a double arm fixing plate, resetting hands, a fixing steel needle threaded rod, a fastening screw cap, etc. The resetting hands are used for straightening the lateral displacement of fracture; the fixing steel needle threaded rod causes a stainless steel needle to be horizontally and crosswise fixed on the thigh movable segment connecting rod, the shank movable segment connecting rod, the movable segment connecting rod arch-shaped connecting plate, the single arm fixing plate, and the double arm fixing plate; a movable segment double threaded rod is used for bone pressurization and bone extension; the fastening screw cap is used for causing the thigh movable segment connecting rod and the shank movable segment connecting rod not to loosen; the problems of the resetting of fracture of multiple positions opening, instability, infection wound surface, and external fixation are solved.

Description

More piece multifunctional bone fracture external fixator

This utility model is the medical apparatus and instruments that is used for the treatment of homonymy tibiofibula, femur, multi-section position, opening, unstable fracture.

Existing holder Ma Shi frame and cloth Lang Shi frame, the bone that dangles traction, the restriction patient activity, can only go up dorsal position by bed, combinable external fixator, the bone external fixation is insecure, does not have fastening nut on the screw rod of connection side lever, causes the screw rod point of attachment loosening, when the treatment Fracture of femur, in horizontal level draw point resected femur, be inclined cross thigh with a semi-ring bar and fix, because of thigh quadriceps femoris contractility very powerful, lower limb lever force brachium, cause fixed mount loosening easily, therefore inapplicable, the fixing normal appearance of intramedullary needle is crooked.

The purpose of this utility model is to design a kind of more piece multifunctional bone fracture external fixator, it can accurately correct the fracture site lateral displacement with the hands that resets, multi-direction, multi-angle, multi-section position, level, the crossover location external fixation of threading a needle, make things convenient for the synthetism external fixator of infective wound surface treatment, it is simple in structure, easy to use, in light weight.

This utility model is by standing screw 1, articulated arm 2, joint connection pipe 3, knuckle rod 4, horizontal draw point standing screw 5, arch sheet 6, the screw rod 7 that resets, shank short screw 8, meniscus 9, flat side's fixed block 10, intersection draw point standing screw 11, stainless pin 12, hold-down screw 13, long bolt 14, hold-doun nut 15, convex fixed block 16, fastening nut 17, right angle yoke plate 18, left Nut pole 19, left-hand thread fastening nut 20, movable joint twin screw 21, fixedly the draw point piece 22, thigh knuckle rod 23, rivet 24, fixedly draw point medicated cap 25 is formed.It is characterized in that: an end of the screw rod 7 that resets is handwheel shapes, and the other end has an annular groove, the center be tubulose as shown in Figure 4, a fluted end places fixedly in the draw point medicated cap 25, connects with hold-down screw 13; Fixedly draw point medicated cap 25 be the cylindrical cap shape as shown in Figure 5, stainless pin 12 places the central canal of screw rod 7 and fixedly in the draw point medicated cap 25 of resetting, fix as shown in Figure 2 with hold-down screw 13, there is a screw to connect on one panel of right angle yoke plate 18 with the screw rod 7 that resets, form by standing screw 1 in the another side plate hole and reset hands as shown in Figure 2, be connected and fixed with the hole of standing screw 1 with meniscus 9, arch sheet 6, flat side's fixed block 10, convex fixed block 16 both sides; Meniscus 9 is first quarter moon shapes, have on the plate apart from equal apertures, the one side channel riveted joint of one end and flat side's fixed block 10 is formed the single armed fixing head as shown in Figure 3, flat side's fixed block 10 is deltiod shapes, 2 holes are arranged, a hole connects with knuckle rod 4, left Nut pole 19, with hold-down screw 13 fixing as Fig. 1,16, shown in, the two ends of arch sheet 6 are with rivet 24 and the type arched yoke plate of flat side's fixed block 10 riveted joints as shown in Figure 7; A hole is arranged in the middle of the convex fixed block 16, respectively there is a hole both sides, each forms the both arms fixing head as shown in Figure 6 by a groove and 24 riveted joints of meniscus 9 usefulness rivets two ends, and knuckle rod 4, left Nut pole 19, thigh knuckle rod 23 place in the interstitial hole fixing shown in Fig. 1,16,17,18 with hold-down screw 13; Rivet 24 riveted joints of 16 times end slot weeks of arch sheet 6 two ends and convex fixed block, arch sheet 6 place in the upper end slot and are connected and fixed composition movable joint arch yoke plate as shown in Figure 8 with standing screw 1; Intersection draw point standing screw 11 and horizontal draw point standing screw 5 are to be the step shape screw rod, the nut of intersection draw point standing screw 11 is hexagonal configurations, porose shown in Fig. 9,10 at nut one end, stainless pin 12 places in the hole, the two side holes internal fixation that the draw point standing screw 11 that intersects is placed on arch sheet 6, meniscus 9, flat side's fixed block 10, convex fixed block 16 as Fig. 1,16,17,18, shown in; Knuckle rod 4 is cylindrical rods that there is screw at two ends, the equidistant step-like hole that is is arranged, with the stepped hole vertical direction equidistant blind hole is arranged, on the movable joint twin screw 21 both sides screw rods by fastening nut 17, left-hand thread fastening nut 20 connect with knuckle rod 4, left Nut pole 19, thigh knuckle rod 23 form shank movable joint link rod as Figure 12,13, shown in and thigh movable joint link rod shown in Figure 14,15; Left side Nut pole 19 is cylindrical rods that there is left screw at two ends, the centre has distance to equate to be step-like pipe, there is distance to equate blind hole with step-like pipe vertical direction, thigh knuckle rod 23 is columns, there is screw at two ends, and an end is left screw, have distance to equate step-like pipe on the bar, with step-like pipe vertical direction have the distance equate blind hole, horizontal draw point standing screw 5 place step-like pipe internal fixation as Fig. 1,16,17,18, shown in; Fixedly draw point piece 22 is deltiod shapes, a hole is arranged, a pipe, a step pipe as shown in figure 11, knuckle rod 4, left side Nut pole 19, thigh knuckle rod 23 places the hole internal fixation, stainless pin 12 places in the pipe fixing with hold-down screw 13, the draw point standing screw 11 that intersects places step-like pipe internal fixation such as Fig. 1, shown in 16, one end of articulated arm 2 is semi-cylindricals, there is a hole centre, other end screw rod connects with knuckle rod 4, it is tubuloses that the joint connection manages 3, and 2 articulated arms 2 of lower leg portion and 2 joints connection pipes 3 are formed more piece multifunctional bone fracture external fixator as shown in Figure 1 with standing screw 1 connection as shown in figure 17 with 2 articulated arms 2 of thigh part as shown in figure 16.

Movable joint twin screw 21 connects with knuckle rod 4, thigh knuckle rod 23, fastening nut 17, left-hand thread fastening nut 20, with arch yoke plate, arch yoke plate as shown in Figure 7, both arms fixing head, both arms fixing head are as shown in Figure 6, movable joint arch yoke plate, movable joint arch yoke plate are as shown in Figure 8, reset hands, reset hands as shown in Figure 2, horizontal draw point standing screw as shown in figure 10, intersect the draw point standing screw as shown in Figure 9, shank short screw 8, long bolt 14 be linked together as shown in figure 18.Be used for the treatment of that a position unstable fracture resets, external fixation, bone pressurization, bone prolong.

This utility model is compared it and is used for the treatment of the homonymy tibiofibula with original, femur, the multi-section position, pulverize, open unstable fracture, have and reset accurately, external fixation is reliable, the hands that resets can accurately be corrected the fracture lateral displacement, it is simple in structure easy to operate, stainless pin in horizontal draw point standing screw and the intersection draw point standing screw hole, can fracture to the multi-section position, it is fixing to thread a needle, unstable fracture can many planes, multi-direction, the multi-angle external fixation of threading a needle, different directions twisting movable joint twin screw, bone pressurization or bone are prolonged, the fastening nut of tightening on the movable joint twin screw makes greatly, shank knuckle rod point of attachment is not loosening, there are hold-down screw and fixed by nut in each connection place of whole more piece multifunctional bone fracture external fixator, many stainless pins run through each fractured bones bar and can hold up greatly, shank, avoid the soft tissue extruding, the treatment of convenient infective wound surface on every side.

Description of drawings:

Fig. 1 is a population structure sketch map of the present utility model;

Fig. 2 is the hands structural representation that resets of the present utility model;

Fig. 3 is this utility model single armed fixing head structural representation;

Fig. 4 is this utility model screw rod cutaway view that resets;

Fig. 5 is a fixedly draw point medicated cap cutaway view of this utility model;

Fig. 6 is this utility model both arms fixing head structural representation;

Fig. 7 is this utility model arch yoke plate structural representation;

Fig. 8 is this utility model movable joint arch yoke plate structural representation;

Fig. 9 is this utility model intersection draw point standing screw front view;

Figure 10 is the horizontal draw point standing screw of a this utility model front view;

Figure 11 is a fixedly draw point piece sketch map of this utility model;

Figure 12 is this utility model shank movable joint link rod cutaway view;

Figure 13 is this utility model shank movable joint link rod cutaway view;

Figure 14 is this utility model thigh movable joint link rod cutaway view;

Figure 15 is this utility model thigh movable joint link rod cutaway view;

Figure 16 is a partly structural representation of this utility model shank;

Figure 17 is a partly structural representation of this utility model thigh;

Figure 18 is the structural representation of a position fracture of this utility model treatment;

Embodiment of the present utility model:

More piece multifunctional bone fracture external fixator is by standing screw 1, articulated arm 2, joint connection pipe 3, knuckle rod 4, horizontal draw point standing screw 5, arch sheet 6, the screw rod 7 that resets, shank short screw 8, meniscus 9, flat side's fixed block 10, intersection draw point standing screw 11, stainless pin 12, hold-down screw 13, long bolt 14, hold-doun nut 15, convex fixed block 16, fastening nut 17, right angle yoke plate 18, left Nut pole 19, left-hand thread fastening nut 20, movable joint twin screw 21, fixedly draw point piece 22, thigh knuckle rod 23, rivet 24, fixedly draw point medicated cap 25 is formed.

Wherein standing screw 1, hold-down screw 13, hold-doun nut 15, stainless pin 12 is standard components, other part of more piece multifunctional bone fracture external fixator is made of aluminum alloy materials, the end of screw rod 7 of resetting is handwheel shapes, the other end has annular groove, the center be tubulose as shown in Figure 4, a fluted end places fixedly and connects with hold-down screw 13 in the draw point medicated cap 25, fixedly draw point medicated cap 25 be the cylindrical cap shape as shown in Figure 5, stainless pin 12 places the central canal of screw rod 7 and fixedly fixing as shown in Figure 2 with hold-down screws 13 in the draw point medicated cap 25 that resets, right angle yoke plate 18 rectangular shapes, the screw of one panel connects with the screw rod 7 that resets, form by standing screw 1 in the hole of another panel and reset hands as shown in Figure 2, be fixed on meniscus 9 with standing screw 1, arch sheet 6, flat side's fixed block 10, be connected and fixed as Fig. 1 in the hole of convex fixed

block

16,8,16,17, shown in 18, meniscus 9 is first quarter moon shapes, there is distance to equate 4 holes on the plate, the one side channel riveted joint of flat side's fixed block 10 of one end and deltiod shape is formed the single armed fixing head as shown in Figure 3, flat side's fixed block 10 has 2 holes, knuckle rod 4, left side Nut pole 19 places in the hole fixing as Fig. 1 with hold-down screw 13, shown in 16, type arched yoke plate is riveted as shown in Figure 7 with rivet 24 and flat side's fixed block 10 in the two ends of arch sheet 6, arch sheet 6 is plates of arch shape, have on the plate apart from equal apertures, a hole is arranged in the middle of the convex fixed block 16, respectively there is a hole both sides, respectively there are a groove and meniscus 9 in two ends, form the both arms fixing head as shown in Figure 6 with rivet 24 riveted joints, knuckle rod 4, left side Nut pole 19, thigh knuckle rod 23, place in the interstitial hole fixing as Fig. 1 with hold-

down screw

13,16,17, shown in 18, the two ends of the convex fixed block 16 of flat side's convex form, wherein descend end slot and 24 riveted joints of arch sheet 6 usefulness rivets, arch sheet 6 places in the upper end slot and is connected and fixed composition movable joint arch yoke plate as shown in Figure 8 with standing screw 1, shank short screw 8, long bolt 14, place arch sheet 6, fixing in meniscus 9 holes with hold-doun nut 15.Intersection draw point standing screw 11 and horizontal draw point standing screw 5, it is the step shape screw rod, the draw point hold-doun nut that intersects is a hexagonal configuration, nut one end has a hole, stainless pin 12 places in the hole, the draw point standing screw 11 that intersects is placed on arch sheet 6, meniscus 9, flat side's fixed block 10, convex fixed block 16, the fixing hole internal fixation of draw point piece 22, horizontal draw point standing screw 5 places knuckle rod 4, left side Nut pole 19, use fixed by nut in the step-like pipe of thigh knuckle rod 23, knuckle rod 4 is columns, and there is screw at two ends, and equidistant step-like hole is arranged, there is distance to equate blind hole with the stepped hole vertical direction, on the both sides screw rod of movable joint twin screw 21 fastening nut 17 is arranged, left-hand thread fastening nut 20 and knuckle rod 4, left Nut pole 19, thigh knuckle rod 23 connect forms shank movable joint link rod such as Figure 12, shown in 13 and thigh movable joint link rod such as Figure 14, shown in 15, left side Nut pole 19 is columns, there is the left-hand thread hole at two ends, and the centre has distance to equate to be step-like pipe, have distance to equate blind hole with step-like pipe vertical direction, thigh knuckle rod 23 is columns, there is screw at two ends, wherein an end is left screw, has distance to equate step-like pipe on the bar, has distance to equate blind hole with step-like pipe Nogata.Fixedly draw point piece 22 is deltiod shapes, a hole, a pipe, a step pipe is arranged as shown in figure 11, and knuckle rod 4, left Nut pole 19 place in the hole, and stainless pin 12 places in the pipe, and the draw point standing screw 11 that intersects places step-like pipe internal fixation.Articulated arm 2 is screw rod shapes, on the one end semicolumn hole is arranged, other end screw rod connects with knuckle rod 4, joint connection pipe 3 is tubuloses, and articulated arm 2 and joint connection pipe 3 usefulness standing screws 1 partly connect shank as shown in figure 17 with leg portion as shown in figure 16 and form more piece multifunctional bone fracture external fixator as shown in Figure 1.

Movable joint twin screw 21 connects with knuckle rod 4, thigh knuckle rod 23, fastening nut 17, left-hand thread fastening nut 20, with the arch yoke plate, the both arms fixing head, movable joint arch yoke plate, hands resets, the level and the draw point standing screw that intersects, shank short screw 8, long bolt 14 be linked together be used for the treatment of that a position unstable fracture resets, fix, bone pressurization or bone prolongation as shown in figure 18.

Using method: treatment homonymy lower limb tibiofibula, femur, the multi-section position, pulverize, open fracture also has traumatic infection, according to X-ray film, fracture, displacement of fractured ends direction and distance, twisting movable joint twin screw is adjusted to the appropriate location, avoid infective wound surface resetting hands and horizontal draw point standing screw, intersection draw point standing screw, single, the both arms fixing head, movable joint arch yoke plate is by being placed on the appropriate location, suffering from limb by being placed in the more piece multifunctional bone fracture external fixator, stainless pin in the hands that resets brill is fixed to bone stump, tighten the hold-down screw on the fixing draw point medicated cap, fixing stainless pin, twisting the screw rod that resets makes stainless pin promote fracture site rectification lateral displacement forward, counterclockwise shearing movable joint twin screw makes greatly simultaneously, shank movable joint link rod prolongs corrects the overlapping displacement of fracture, the back that resets intersects to the unstable fracture position and wears stainless pin and fix, and penetrates stainless pin and fixes stablizing position fracture site horizontal level.Clockwise shearing movable joint twin screw again, large and small lower limb link rod is shortened, and the bone pressurization tightens fastening nut and left-hand thread fastening nut on the movable joint twin screw, and other hold-down screw, each point of attachment of fixed by nut, take off the stainless pin in the hands that resets and the hands that resets at last.

More piece multifunctional bone fracture external fixator also can be treated the damaged shortened deformity of fractured bones, prolong as on backbone of tibia, carrying out bone pressurization and bone simultaneously, as the damaged shortened deformity disunion of 1/3 bone under the tibia, implement 1/3 bone grafting down, last 1/3 does the bone prolongation is placed on this utility model shank partly as shown in figure 16, wear 2 horizontal level draw points at middle tibia, on tibia, each horizontal level of lower end penetrates 2 stainless pins and fixes, following 2 the movable joint twin screw of clockwise shearing make 1/3 shortening generation bone pressurization under the shank movable joint link rod, twist 2 the movable joint twin screw in top counterclockwise, 1/3 prolongs on the shank movable joint link rod, make 1/3 prolongation on the shank, the bone external fixation tightens fastening nut and left-hand thread fastening nut on the movable joint twin screw at last.

Claims

1, a kind of more piece multifunctional bone fracture external fixator, comprise the hands that resets, arch yoke plate, movable joint arch yoke plate, shank movable joint link rod, thigh movable joint link rod, level and intersection standing screw, fixedly draw point piece, stainless pin, long bolt, it is characterized in that:

A reset end of screw rod (7) of a is a handwheel, the other end has an annular groove, the center is a tubulose, a fluted end places in the fixedly draw point medicated cap (25) of cylinder convex form, connect with hold-down screw (13), stainless pin (12) is put and is resetted the central canal of screw rod (7) and fixedly in the draw point medicated cap (25), fixing with hold-down screw (13), there is a screwed hole to connect on one panel of right angle yoke plate (18) with the screw rod that resets (7), there is standing screw (1) to form the hands that resets in the another side plate hole, with standing screw (1) and meniscus (9) arch sheet (6), flat side's fixed block 10, the two side holes of convex fixed block (16) is connected and fixed

B meniscus (9) is the first quarter moon shape, have on the plate apart from equal apertures, the single armed fixing head is formed in the one side channel riveted joint of flat side's fixed block (10) of one end and deltiod shape, flat side's fixed block (10) is that the deltiod shape has 2 holes, a hole connects with knuckle rod (4), left Nut pole (19), thigh knuckle rod (23), fixing with hold-down screw (13)

Type arched yoke plate is riveted with rivet (24) and flat side's fixed block (10) in the two ends of c arch sheet (6),

In the middle of the d convex fixed block (16) hole is arranged, respectively there is a hole both sides, and two ends respectively have a groove and meniscus (9) to form the both arms fixing head with rivet (24) riveted joint, knuckle rod (4), left side Nut pole (19), thigh knuckle rod (23) place in the interstitial hole fixing with hold-down screw (13)

E arch sheet (6) two ends and convex fixed block (16) end slot are down riveted with rivet (24), and arch sheet (6) places interior being connected and fixed with standing screw (1) of upper end slot to form movable joint arch yoke plate,

F intersection draw point standing screw (11) and horizontal draw point standing screw (5) are to be the step shape screw rod, the nut of intersection draw point standing screw (11) is a hexagonal configuration, porose at nut one end, stainless pin (12) places in the hole, the draw point standing screw (11) that intersects is placed on arch sheet (6), the two side holes internal fixation of meniscus 9, flat side's fixed block 10, convex fixed block (16)

G knuckle rod (4) is the cylindrical rods that there is screw at two ends, the equidistant step-like hole that is is arranged, there is distance to equate blind hole with the stepped hole vertical direction, on the screw rod of movable joint twin screw (21) both sides fastening nut (17) is arranged, left-hand thread fastening nut (20) and knuckle rod (4), left side Nut pole (19), thigh knuckle rod (23) connects forms shank movable joint link rod and thigh movable joint link rod, left side Nut pole (19) is the cylindrical rods that there is left screw at two ends, the centre has distance to equate to be step-like pipe, there is distance to equate blind hole with step-like pipe vertical direction, thigh knuckle rod (23) is a column, there is screw at two ends, one end is left screw, there is distance to equate step-like pipe on the bar, there is distance to equate blind hole with step-like pipe vertical direction, horizontal draw point standing screw (5) places step-like pipe internal fixation, fixedly draw point piece (22) is the deltiod shape, and a hole is arranged, a pipe, a step pipe, knuckle rod (4), left side Nut pole (19), thigh knuckle rod (23) places the hole internal fixation; Stainless pin (12) places the interior all hold-down screws (13) of pipe fixing, and the draw point standing screw (11) that intersects places step-like pipe internal fixation,

One end of h articulated arm (2) is a semi-cylindrical, there is a hole centre, other end screw rod connects with knuckle rod (4), joint connection pipe (3) is a tubulose, and shank part 2 articulated arms (2), 2 joint connection pipes (3) and 2 articulated arms of leg portion (2) are connected composition more piece multifunctional bone fracture external fixator with standing screw (1).