CN2386777Y

CN2386777Y - Bone rongeur

Info

Publication number: CN2386777Y
Application number: CN 99244360
Authority: CN
Inventors: 姜士炜; 詹红; 崔俊宏; 程涛
Original assignee: 姜士炜
Priority date: 1999-09-13
Filing date: 1999-09-13
Publication date: 2000-07-12
Anticipated expiration: 2009-09-13

Abstract

The utility model relates to a bone rongeur which is mainly used for pruning a flat bone for neurosurgery. The bone rongeur which is mainly used for pruning a flat bone for neurosurgery can cause a flat bone which is pruned to form a wound edge which is approximate to be flat and straight, pruning workload is reduced, operation efficiency is enhanced, and sequelae is reduced or avoided. The structure of the bone rongeur which is mainly used for pruning a flat bone for neurosurgery is characterized in that two handles and two rongeur heads are riveted by four hinging shafts to form the bone rongeur which is mainly used for pruning a flat bone for neurosurgery. The rongeur heads are respectively composed of a rongeur opening and a hinging body. The front end part of the active face (6) of the rongeur opening is approximate to a channel steel section shape, and the top surface of an end wall (5), i.e. the transversal section of the active face is approximate to a rectangular.

Description

Rongeur

This utility model relates to neurosurgery and is mainly used in the rongeur that flat bone (tabular bone) is pruned, particularly rongeur binding clip oral area structure.

In neurosurgery, meet acute cerebral insult, space occupying lesion in the brain, patients such as emergency operation treatment often need skull to window, and used operating theater instruments comprises rongeur, and existing rongeur is made of by four hinge riveted joints two handles and two binding clips.As shown in Figure 1 and Figure 2, binding clip is made up of jaw and dumpling junctor, and jaw is provided with a recess 4, and the end of this recess is a curved surface, distance between the boundary line of the boundary line of this curved surface and binding clip outer surface is generally 1 millimeter, and promptly the width (thickness) of jaw sword face (end wall end face) 6 is 1 millimeter.Problem is that the fore-end of sword face 6 is a circular arc.Adopt thisly when being commonly called as round end or sharp mouth rongeur and stinging the bone operation, skull is windowed, and the bone window edge usually forms uneven bone angle in the process, repeatedly stings except that forming the zigzag edge of wound behind the skull.Postoperative often because of the people's headache of causing a disease of edge of wound compressing soft tissue, even damages brain, perhaps damages the scalp tissue blood vessel and causes hemorrhagely, and repairing cranial defects has in the future been increased difficulty.

The purpose of this utility model provides a kind of neurosurgery and is mainly used in the rongeur that flat bone is pruned, and it can make the flat bone of stinging after removing form approximate straight edge of wound, reduces the finishing process amount, improves operation efficient, alleviates or avoids sequela.

For reaching above-mentioned purpose, this utility model rongeur, constitute by four hinge riveted joints by two handles and two binding clips, binding clip is made up of jaw and articulated body, jaw is provided with recess and sword face, its construction features is that the end is divided into approximate channel-section steel section shape in face of the jaw sword, and the end face of binding clip end wall is that the lateral part of sword face is approximate rectangle.

After adopting such structure, when using the operation of this utility model rongeur carrying out sacrococcygeal joint because the lateral part of jaw sword face is a rectangle, its sting except that effective length be 3～4 times of existing rongeur, simultaneously, because the end is divided into channel-section steel section shape in face of the jaw sword, it is approximate straight to sting the edge of wound that forms behind the bone, less sawtooth bone angle, only need a small amount of integrity finishing, therefore, this utility model rongeur can improve operation efficient greatly, alleviates or avoids above-mentioned sequela shape.The range of application of this utility model rongeur enlarges, and not only can be used as routine and stings the bone aid, and finishing skull edge of wound also can be used in the defect of skull art, and to the rib as patching material, materials such as marrow bone and organic glass glass are repaired.

Below in conjunction with the drawings and specific embodiments this utility model is described in further detail:

Fig. 1 is existing four hinge rongeur overall structure sketch maps.

Fig. 2 is an A portion enlarged drawing among Fig. 1.

Fig. 3 was the vertical view of binding clip oral area sword when last of this utility model rongeur specific embodiment.

Fig. 4 is along N-N line cutaway view among Fig. 3.

Fig. 5 is along M-M line cutaway view among Fig. 3.

Fig. 6 is that B shown in Figure 3 is to view.

This utility model improves its binding clip oral area front edge face based on existing rongeur 1.Fig. 3 to Fig. 6 has provided the binding clip oral area structure after improving.

As shown in Figure 3, the boundary line of the boundary line of recess 4 and binding clip outer surface has surrounded binding clip oral area sword face 6, is that sword is towards last seen shape shown in the figure.Binding clip outer surface boundary line is made up of the outer surface boundary line and their intersecting curve of 5, two sidewalls 3 of binding clip end wall.Binding clip oral area sword face 6 fore-ends are approximate channel-section steel section shape, sword face 6 fore-ends are meant that the end face of end wall 5 is the lateral part of sword face 6, and a bit of near the lateral part in 6 two longitudinal components of sword face, they form channel-section steel section shape part, and they are parts that rongeur really is used to sting bone.So-called being similar to is meant that the lateral part and the longitudinal component of sword face 6 join by curved surface.In Fig. 3, the end face of end wall 5 is that the lateral part of sword face 6 is approximate rectangles.So-called approximate, be meant that long limit of rectangle and minor face join by curve.End parts presents river horse mouth shape in face of the sword.

As shown in Figure 4, two sidewalls 3 are perpendicular to the binding clip back side 2, and the end face of sidewall 3 is exactly the longitudinal component of binding clip oral area sword face 6.

As shown in Figure 5, the external boundary line of the boundary line of recess 4 and end wall 5 forms the lateral part of sword face 6, and end wall 5 is perpendicular to the back side 2.

As shown in Figure 6, the outer surface of end wall 5 is perpendicular to the outer surface of two sidewalls 3, and the outer surface at the back side 2 is parallel to sword face 6.

Claims

1, a kind of neurosurgery is mainly used in the rongeur that flat bone is pruned, constitute by four hinge riveted joints by two handles and two binding clips, binding clip is made up of jaw and articulated body, jaw is provided with recess (4) and sword face (6), it is characterized in that: jaw sword face (6) fore-end is approximate channel-section steel section shape, and the end face of binding clip end wall (5) is that the lateral part of sword face (6) is approximate rectangle.