JP2000210297A - Steel wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a steel wire to be inserted as it is bent into an object such as a bone to be fixed by bending a steel wire with hardness and flexibility the same as that of a Kirschner wire into an arc and rotating one end in a high speed as it is to utilize elasticity of the steel wire. SOLUTION: One point, some points, or the total length of this steel wire 11 are fixed in a state rotatable in its guide groove 12 by a guide holder 13. By fixing and holding such guide, the elasticity of the steel wire is utilized to enable the bent steel wire rotating in a high speed around the longitudinal axis to be punctured as it is bent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel wire used for treating a fracture, particularly in the medical field.

[0002]

2. Description of the Related Art Conventional steel wires such as Kirschner steel wires are
Because it was a straight, non-curved shape, it could be bent, but could only be inserted straight into a hard object such as bone.

[0003]

Since the curved steel wire of the present invention is originally formed in a curved state, depending on the type or condition of the fracture, the steel wire may be inserted in a direction other than the straight direction. Research was conducted to make it possible to fix the steel wire more ideally.

[0004]

SUMMARY OF THE INVENTION A steel wire having the same hardness and elasticity as a Kirschner steel wire is formed by being curved in an arc shape. Even if one end is rotated at a high speed, the arc rotates three-dimensionally so as to draw a curved surface and cannot be inserted into a hard object such as a bone in an arc shape. Therefore, as shown in FIGS. 3, 4, 5, and 6, one or several or almost the entire length of the steel wire is rotatable in the guide grooves (12, 32, 42) in such a state that it can be rotated. , 33,4
Fix in 3). By fixing and holding such a guide, high-speed rotation about the long-axis direction of the curved steel wire is enabled by utilizing the elasticity of the steel wire.

[0005]

Embodiments will be described with reference to the drawings.
A machine that can rotate one end of a curved steel wire (2
5) and guide groove (1) that draws the same arc as this steel wire
Guide holders (13, 32,
22, 33, 43) to the machine of (25) as shown in FIG. 4 or by holding it with the other hand, making use of the elasticity of the steel wire to change the longitudinal direction of the curved steel wire. High-speed rotation with the axis was completed. In the case of FIG. 4, the angle of the joint (24) of the handle of the guide holder decreases as the steel wire is inserted. 5 and 6
In the case where the guide hole holds almost the entire length of the steel wire as in the case (1), a part of the guide holder slides and shortens as the steel wire penetrates the bone (45) (FIG. 6). Has become.

[0006]

According to the present invention, a steel wire that is still curved can be used for a fracture that is difficult to fix only by inserting a straight steel wire, or when it is most suitable to fix a curved steel wire. Lancing can contribute to the treatment of a significant number of cases. Also, in cases requiring curved osteotomy, it can be used as the most powerful guide for the osteotomy. Not only is the curved steel wire of the present invention made of the same material as the Kirschner steel wire, but if it is made of a thinner and softer material such as C wire, it is effective for operations on finer parts. Further, if such a curved steel wire is provided with a thread, a completely different kind of fixation is possible from a screw which could be rotationally inserted only in a straight line until now. Until now, the inner fixing material to be inserted while rotating, such as various steel wires and screws, was straight, but by using the curved steel wire of the present invention, the inner fixing with a completely different concept from before Can be.

[Brief description of the drawings]

FIG. 1 is a side view of a steel wire.

FIG. 2 is a sectional view of a steel wire.

FIG. 3 is a sectional view of a detachable guide holder mounted on a curved steel wire.

FIG. 4 is a side view of a curved steel wire equipped with a detachable guide holder and a machine capable of rotating the steel wire at a high speed such as an air tome or an electric drill.

FIG. 5 is a sectional view of a detachable and slidable guide holder attached to almost the entire length of a curved steel wire.

FIG. 6 is a cross-sectional view of a detachable and slidable guide holder attached to almost the entire length of a curved steel wire,
It is sectional drawing of the state which inserted the steel wire in the bone etc. by sliding the guide holder.

[Explanation of symbols]

1,2,11,21,31,41 Curved steel wire 12,32,42 Guide groove 13,22,33,43 Guide holder 14,23,34,44 Guide holder handle 24 Joint of guide holder handle 25 Machine that can rotate steel wire at high speed, such as an air tome or electric drill 45 Object to insert steel wire such as bone 46 Slided part of guide holder

Claims (4)

[Claims] An elastic steel wire (1,2,11,21,31,41) which is a curved steel wire and can be rotated at a high speed in a long axis direction while being bent. 2. A holder as a removable guide made of a curved elastic steel wire.
43) A steel wire which is mounted with the guide holder and can be rotated at a high speed in the long axis direction while being curved by the guide holder. 3. A steel wire on which a holder serving as a detachable guide is mounted over substantially the entire length, and the guide holders (33, 43) are provided according to the insertion of the steel wire.
One that can be slid like 4. A resilient, curved steel wire which is threaded.