CN2555790Y

CN2555790Y - Proximal anterolateral anatomical steel plate of humerus

Info

Publication number: CN2555790Y
Application number: CN 02268454
Authority: CN
Inventors: 郭炜; 崔鲁民; 张克源; 侯垒; 董燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-24
Filing date: 2002-07-24
Publication date: 2003-06-18
Anticipated expiration: 2012-07-24

Abstract

The utility model relates to a proximal anterolateral anatomical steel plate of humerus, comprising a steel plate body which is consistent with the physiological radian of the anterolateral part of the humerus, and a deflected and double-hook shaped head part at the top end. The double-hook shaped head part transits with the steel plate circular arc, and a fixing hole is arranged on the steel plate body. The usage of the utility model is that the positioning Kirschner wire is obliquely driven from the part which is 3 millimeters below the greater tubercle of the humerus, which makes the two-stage of the fractured positioned first. Then the Kirschner wire is made to pass through the positioning hole of the steel plate body, the double-hole at the head part is driven into the proximal humerus from the greater tubercle point. Because the steel plate body is consistent with the anterolateral physiological radian, then a cancellous bone screw is driven from the cancellous bone screw fixed hole point of the steel plate body, and the cancellous bone screw forms a stable triangular structure with the double-hook. At last the steel plate body is fixed with the anterolateral part of the humerus by the screw. After the fixation is finished, the Kirschner wire is taken out. The anatomical steel plate has the advantage of good fixed constancy. Preventing the steel plate body is not needed in operation, which makes operation easy. Because the anatomical steel plate is fixed fast and reliably, patient can move early, which is favorable for functional restoration. The anatomical steel plate has the advantage of small injury.

Description

Outside dissection armor plate before the proximal humerus

Technical field

This utility model belongs to the bone surgery apparatus, relates to the proximal humeral fracture fixation steel plate.

Background technology

Proximal humeral fracture such as fracture of the surgical neek of the humerus are because the fractured near end section is less and near the joint, give clinical certain difficulty of fixedly bringing.The normal Kirschner wire internal fixation (two fine steel needles intersections are inserted into two fracture segments) that adopts, because the Kirschner wire stability maintenance is poor, the nonreactive centrifugation, postoperative often need add external fixation, can not reach the purpose of early ambulant, make many patient's postoperative functions of joint all stay in various degree obstacle, the someone uses the trilobal cross steel plate to treat this type of fracture in recent years, but because trilobal cross steel plate upper end is bigger, the area that need peel off periosteum is big, and also needs pre-bending to adapt to the physiologic radian of upper end of humerus at the operation process light plate.

Summary of the invention

Technical problem to be solved in the utility model provides the preceding outside of a kind of proximal humerus dissection armor plate, and suitable proximal humeral fracture is fixed, and stability maintenance is good, makes operation technique easy.

Outside dissection armor plate before the proximal humerus of the present utility model, it is characterized in that forming by steel plate body and the vertical decurved double hook shape head of steel plate body consistent with outside physiologic radian before the humerus, double hook shape head and steel plate body arc transition, steel plate body is provided with fixing hole.

The fixing hole that is provided with on steel plate body is be convenient to steel plate fixing, in order to operate this dissection armor plate better, infall at double hook shape head and steel plate body omits upper/lower positions, can be provided with the Kirschner wire locating hole on the steel plate body, again toward being arranged with the cancellous bone screw fixing hole, far-end is provided with three screw fixed holes, and middle one is the pressurization hole.

Its using method is: squeeze into the location Kirschner wire from following 3 millimeters of the greater tubercle of humerus (or about) under tiltedly, make two sections of fracture to locate earlier, Kirschner wire is passed from the Kirschner wire locating hole of this dissection armor plate, from greater tubercle the head double hook of dissection armor plate is squeezed into proximal humerus, steel plate body is because consistent with preceding outside physiologic radian, cancellous bone screw fixing hole from the steel plate body is squeezed into cancellous bone screw then, cancellous bone screw and double hook form the quasi-stationary triangular structure of class, at last by screw with steel plate body and humerus before the outside fix.After fixing, take out Kirschner wire.

From using method as can be seen, the head of double hook shape is inserted into the greater tubercle place of humerus, and the Kirschner wire locating hole on the steel plate body is with respect to following 3 millimeters of greater tubercle (or about) position, and this Kirschner wire locating hole is an inclined hole; The position is set will be convenient to form similar triangular structure with cancellous bone screw and the double hook from then on squeezed into of cancellous bone screw fixing hole is to improve fixed stability; Other three screw holes scatter to be provided with and get final product.

Advantage of the present utility model:

Because form stable triangular structure in proximal humerus when using, and steel plate body is consistent with preceding outside physiologic radian, stability maintenance is good; Steel plate body meets the anatomical physiology radian, does not need pre-bending during operation, makes operation technique easy; Because fixation, reliable, but patient's early ambulant is beneficial to functional rehabilitation; Use this utility model wound little.

Description of drawings

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

Fig. 2 is the right view of Fig. 1;

Fig. 3 is a double hook shape head sketch map;

Among the figure: 1 double hook shape head, 2 steel plate bodies, 3 Kirschner wire locating holes, 4 cancellous bone screw fixing holes, 5 screw fixed holes, 6 pressurization holes

The specific embodiment

This utility model is made up of steel plate body 2 and the vertical curved double hook shape head 1 down of steel plate body, and the radian of steel plate body is consistent with outside radian before the humerus, and length is identical with preceding outside length.The head of double hook shape is inserted into the greater tubercle place of humerus, and the Kirschner wire locating hole 3 on the steel plate body is with respect to the following 3 millimeters positions of greater tubercle, and the Kirschner wire locating hole is an inclined hole; Cancellous bone screw fixing hole 4 is below the Kirschner wire locating hole, and on the face of fracturing relatively, cancellous bone screw of so from then on squeezing into and double hook can form triangular structure, improve fixed stability.Also be provided with screw fixed hole 5 and pressurization hole 6 on the steel plate body.

Use according to the using method that this utility model is described.

Claims

1, outside dissection armor plate before the proximal humerus is characterized in that being made up of steel plate body and the vertical decurved double hook shape head of steel plate body consistent with outside physiologic radian before the humerus, double hook shape head and steel plate body arc transition, and steel plate body is provided with fixing hole.

2, dissection armor plate according to claim 1, the infall that it is characterized in that double hook shape head and steel plate body omits upper/lower positions, and steel plate body is provided with the Kirschner wire locating hole, again toward being arranged with the cancellous bone screw fixing hole, far-end is provided with three screw fixed holes, and wherein middle one is the pressurization hole.