CN2487348Y

CN2487348Y - Adjustable external fixer for fracture

Info

Publication number: CN2487348Y
Application number: CN 01243970
Authority: CN
Inventors: 张廷丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-16
Filing date: 2001-07-16
Publication date: 2002-04-24
Anticipated expiration: 2011-07-16

Abstract

The utility model relates to an adjustable external fixer for fracture, which comprises a slide bar and a steel needle fixing device. The adjustable external fixer for fracture is characterized in that the steel needle fixing device comprises a slide block arranged on the slide bar, a lock needle device arranged on the slide block, and lock needle screws in the lock needle device; a needle threading hole is arranged on the lock needle device; the slide block is composed of two clip blocks, one of the clip blocks is provided with a fixed axle which is sheathed on the slide block. The lock needle device is gripped between the two clip blocks, and the two clip blocks are fixed on the slide block by the screws; a pressurizing spreading function is added on the slide bar in order to reduce interstice between broken bones to rectify deformity. The lock needle device of the utility model can be optionally adjusted within the range of 360 DEG, and fracture resetting fixing steel needles can be optionally threaded in the lock needle device. The adjustable external fixer for fracture can adapt to the fixation of various fractures. Meanwhile, the utility model is firmer and more reliable for people to use because the modes that the slide block is annularly sheathed at the slide bar, and the lock needle device is gripped by the clip blocks are adopted.

Description

Adjustable external fixation of fracture frame

Technical field

This utility model belongs to A61B17/60, relates to a kind of external fixation of fracture frame.

Background technology

Extremity fracture needs the fixed mount secure fixation with behind the draw point fixed reset, to alleviate the bearing capacity of extremity when movable, helps the fracture recovery from illness.Because fracture orientation due to illness people is different and different, the fixed position of draw point and disunity, so fixed mount should adapt to different fracture situation.The patent No. is 96204637.X, name is called: universal adjustable fracture external fixator, disclosed technical scheme is that the position in two pairs of staple holes and the steel nail fixture that direction can be adjusted arbitrarily are installed on main fixed axis, this steel nail fixture comprises that an end is clipped in the clip on the main fixed axis, the other end of clip has spherical groove, steel ball is housed in the groove, is connected with the steel nail fixed axis that has the steel nail hole on it on the steel ball, also have the steel nail locking device on the steel nail fixed axis.The strictness restriction that this patent makes the distance of holing in the operation and direction no longer be subjected to holder has reduced operation easier.Although but this patent has the controllability of direction, be subjected to the restriction of its structure, regulating direction has limitation, does not reach the regulated at will of 360 degree, can not adapt to the fixing of miscellaneous fracture; Moreover owing to adopt the steel-ball type frame mode, loosening easily under the effect of instantaneous burst power, influence is used.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of adjustable external fixation of fracture frame, can regulated at will, adapt to the fixing of miscellaneous fracture, and also have constitutionally stable characteristics.

Adjustable external fixation of fracture frame of the present utility model, comprise slide bar, draw point fixture, it is characterized in that described draw point fixture comprises the purl device of installing on the slide block that is installed on the slide bar, the slide block, the purl screw in the purl device, has the hole of threading a needle on the purl device.

Slide block can have a plurality of, and slide block can slide on slide bar, to adapt to the steel nail position on the fracture site.

The preferred structure mode of described slide block is: be made up of two fixture blocks, wherein have fixed axis on a fixture block, fixed hub clamps the purl device between two fixture blocks on slide bar, and two fixture blocks are fixed on the slide bar by screw.Slide block is slided or fixing on slide bar by unclamping or tightening screw,, can in 360 degree scopes, adjust, make location, purl device orientation, tighten screw after adjusting and be fixed on the slide bar because fixture block is to be located on the slide bar.

Described purl utensil has female thread, has the purl screw in it, and the female thread place is to the hole of should threading a needle.Reduction of the fracture draw point penetrates in the purl device by the hole of threading a needle, and fixes by the purl screw in the purl device.

In order to reduce the gap between knochenbruch and to carry out malformation correction, this utility model can increase the function of pressurizing and propping on slide bar, its concrete structure mode is: slide bar is formed by two sections, two intersegmentally are that plug-in type connects, two intersegmentally connect a support bar by the connecting rod on it respectively, support bar is formed by three sections, and three is intersegmental by being threaded.By turning middle one section of support bar, support bar length is increased during use, drive slide bar length increase in the axial direction simultaneously.By middle one section of operation support bar, adjust slide bar slip in the axial direction, slide bar length is changed to some extent, thereby make the gap between knochenbruch obtain adjusting.

The excellent effect that this utility model reaches is: the reduction of the fracture fixedly draw point can arbitrarily be through on the purl device in any direction, the purl device can arbitrarily be adjusted in 360 degree scopes, can adapt to the fixing of miscellaneous fracture, owing to adopting slide block to be located on the mode of slide bar and fixture block clamping purl device, use relatively firmly, reliably simultaneously.The pressurizing and propping function that is provided with can reduce the gap between knochenbruch and carry out malformation correction.This utility model reduces the operation easier of clinical fracture operation greatly.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is partial top view among Fig. 1 (A is to view), mainly is the structure of expressing slide block;

Fig. 3 is the left view of Fig. 1 state left side slide block, mainly is the structure of expressing slide block;

Among the figure: 1 slide bar, 2 slide blocks, 3 purl devices, 4 purl screws, 5 screws 6 hole 7 fixture blocks, 8 fixed axis, 9 connecting rods, 10 support bars of threading a needle

The specific embodiment

Fig. 1～3 are this utility model example structure sketch map, below in conjunction with the embodiment description of drawings:

As Fig. 1, this utility model is made up of purl device of installing on the slide block of installing on slide bar 1, the slide bar 12, the slide block 23 and the purl screw in the purl device.Slide block 2 has two.

Slide block 2 is made up of two fixture blocks 7, and wherein one has fixed axis 8, and fixed axis 8 is located on the slide bar, is fixed on the slide bar by screw 5.Clamp purl device 3 between fixture block, purl device one end has female thread, in have purl screw 4, the hole 6 of threading a needle on the purl device at corresponding female thread place.

As Fig. 1, slide bar is formed by two sections, and two is intersegmental for plug-in type connects, and the two intersegmental connecting rods 9 that pass through respectively on it connect a support bar 10, and support bar is formed by three sections, and three is intersegmental by being threaded.

During use, according to the fracture orientation, determine each purl device thread a needle the hole towards, realize by turning block that then the reduction of the fracture fixedly draw point is through at that the purl device is interior to be fixed by the purl screw.In order to reduce gap or the correction deformity between knochenbruch, first before use by turning one section of support bar 10 centre, owing to be to be threaded support bar length is increased, drive slide bar length increase in the axial direction simultaneously, reset in the position of two slide blocks and the purl device after fixedly draw point fixes, by middle one section of operation support bar, slide bar length is in the axial direction reduced to some extent, thereby make the gap between knochenbruch obtain pressurization, adjust.After two intersegmental slide bars are adjusted, fix by the screw in compression on the section of being inserted into.

Claims

1, a kind of adjustable external fixation of fracture frame, comprise slide bar (1), draw point fixture, it is characterized in that described draw point fixture comprises the purl device of installing on the slide block (2) that is installed on the slide bar, the slide block (3), the purl screw (4) in the purl device, has the hole of threading a needle (6) on the purl device.

2, fixed mount according to claim 1, it is characterized in that described slide block is made up of two fixture blocks (7), wherein have fixed axis (8) on a fixture block, fixed hub is on slide bar (1), clamp the purl device between two fixture blocks, two fixture blocks are fixed on the slide bar by screw (5).

3, fixed mount according to claim 1 and 2 is characterized in that described purl utensil has female thread, has the purl screw in it, and the female thread place is to the hole (6) of should threading a needle.

4, fixed mount according to claim 1 is characterized in that slide bar forms by two sections, two intersegmental be that plug-in type connects, two intersegmentally connect support bars (10) by the connecting rods (9) on it respectively, support bar is formed by three sections, three is intersegmental by being threaded.