CN2522041Y

CN2522041Y - Eccentric whole-nail internal-fixing bone-setting plate for radius far-end fracture

Info

Publication number: CN2522041Y
Application number: CN 00263019
Authority: CN
Inventors: 祝桂涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-26
Filing date: 2000-11-26
Publication date: 2002-11-27
Anticipated expiration: 2010-11-26

Abstract

The utility model provides an eccentric full-nail steel plate for fixing distal fracture of radius relating to a medical equipment for internal fracture fixation, in particular to an internal component for treating distal fracture of radius. The utility model solves the instability problem of half-nail steel plate for fixing distal fracture of radius in clinical treatment. The utility model is characterized in that the palmar and dorsal steel plate is eccentrically arranged on one side of the bone for fixation. The utility model has the advantages of good fixing effect, more solid fracture after being fixed and having the value of promotion and use.

Description

The eccentric full nail internal fixation blade plate of radius far-end fracture

This utility model relates to a kind of internal fixation apparatus of fracture.

The general therapeutic radius far-end fracture adopts the treatment of manual reduction external fixation clinically, in treatment, has big difficulty for comminuted fracture, especially the comminuted fracture of distal radius articular surface injustice, feel simply helpless often, certainly will cause the long term wear in joint to form osteoarthritis in early days, cause the long-term pain in gentle joint and the invalidity of function.At present, the method of this fracture of western medical treatment is to adopt a kind of blade plate internal fixation, two blade plate palm dorsal parts are fixing simultaneously, the blade plate of every side can only be on one-sided cortical bone fixes with screw that (screw is called full nail by the fixing fracture of the cortical bone of both sides to be fixed, it is fixing to be called half nail by the fixing fracture of one-sided cortical bone), fixing with half nail, the stability maintenance of blade plate is very poor, the healing of influence fracture.Therefore at present also there is not a kind of comparatively ideal internal fixation blade plate to be used for treating the fracture of distal radius.

The purpose of this utility model is a kind of eccentric full nail internal fixation blade plate for the treatment of radius far-end fracture of design, to guarantee behind this fracture internal fixation immediate union preferably.

This utility model is achieved in that the eccentric full nail internal fixation blade plate 2 of radius far-end fracture, by synthetism wrench 1, synthetism plate body 4 and screw hole 3 are formed, it is characterized in that when overlapping in opposite directions the lumping together of palm dorsal part blade plate, palm dorsal part synthetism wrench 1 is that the mirror shadow is equal to symmetrical relations, the synthetism plate body 4 of palm dorsal part blade plate staggers different with the connecting portion city of synthetism wrench 1, if palmar synthetism plate body 4 connects near synthetism wrench 1 ulnar side (eccentric ulnad), 4 oar sides (eccentric radiad) near synthetism wrench 1 of dorsal part synthetism plate body connect so, otherwise, if palmar synthetism plate body 4 connects near synthetism wrench 1 oar side, 4 ulnar sides near synthetism wrench 1 of that petty dorsal part synthetism plate body connect.

Advantage of the present utility model and good effect are comminuted fracture of distal radius, utilizing the palmar and the back of the body to survey two internal fixation blade plate enclosing types fixes, the body eccentricity of palm dorsal part blade plate staggers, internal fixation screw can pass through both sides cortical bone fixation bone fracture plate, more firm after the fracture fixation, more help the healing of fracturing, the radian of the center side of blade plate screw hole is big, the radian of opposite side is little and lack, the periphery of the whole screw hole of blade plate all was in contact with one another with head of screw after screw was fixed on the cortical bone, can play allowing screw get a side at key centrage partially vertically to pass and fix, the trend of all internal fixation screws can be sentenced the state that is parallel to each other after the fracture fixation.And the full nail blade plate that fixedly screw cap does not also influence offside behind the blade plate of bilateral is laid.

Description of drawings of the present utility model is as follows:

Fig. 1 is the structural representation that the body of blade plate is abutted against the ulnar side connection of hone lamella head.

Fig. 2 is the structural representation of a screw hole of the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1.

Fig. 4 is the C-C cutaway view of Fig. 1.

Fig. 5 is the structural representation of the body of blade plate near the oar side connection of synthetism wrench.

Fig. 6 is the structural representation of a screw hole of the A-A cutaway view of Fig. 5.

Fig. 7 is the B-B cutaway view of Fig. 5.

Fig. 8 is the C-C cutaway view of Fig. 5.

Fig. 9 be blade plate when being fixed on key going up blade plate and the structural representation of screw contact relation.

Figure 10 is the projection relation sketch map of the blade plate of palm dorsal part when being fixed on key going up.

(Fig. 2,3,4,6,7,8 drawing ratio are amplified).

Be that embodiment is further elaborated this utility model below with the accompanying drawing.

When distal radius generation comminuted fracture, when adopting open reduction blade plate internal fixation treatment, establishing Fig. 1 is the dorsal part blade plate, and Fig. 5 is the palmar blade plate.Dorsal part blade plate (as the blade plate of Fig. 1) is placed in the distal radius dorsal part, squeeze into screw in the screw hole of blade plate body, this screw is beaten the inclined to one side inboard at the dried central axis of radius, and the trend of screw is fore-and-aft direction, does not influence laying of palmar blade plate; Palmar blade plate (as the blade plate of Fig. 5) is placed in the palmar that radius is done, the outside that the body of this blade plate is done near radius, be partial to the outside that radius is done the axle center by the screw that screw hole is squeezed into, do not influence laying of dorsal part blade plate yet, when palm dorsal part blade plate all be fixed on radius do go up after, its projection-type is like the structure of Figure 10, the relation object of screw and blade plate is like shown in the structure of Fig. 9, make screw and blade plate reach contacting of maximum area, help the stability of fracture fixation.

Claims

The eccentric full nail internal fixation blade plate of a kind of radius far-end fracture, by the synthetism wrench, synthetism plate body and screw hole are formed, it is characterized in that slapping the anatomical structure of coronalplane of the similar distal radius of its shape of a side of dorsal part blade plate, the latter's planform belongs to a kind of irregular biological characteristic anatomical structure shape, when the head of the blade plate of slapping dorsal part lumps together in opposite directions is that the mirror shadow is equal to symmetrical relations, when palm dorsal part blade plate lumps together in opposite directions, the synthetism plate body staggers different with the connecting portion of blade plate head, if palmar synthetism plate body connects near blade plate head ulnar side, dorsal part synthetism plate body then connects near the oar side of blade plate head so, be that eccentricity connects, otherwise, if palmar synthetism plate body connects near the oar side of synthetism wrench,, dorsal part synthetism plate body then connects near the ulnar side of blade plate head so.