JPH0810163Y2 - Induction heating applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an applicator for induction heating used for hyperthermia and the like.

(Prior Art) Conventionally, an induction heating applicator using a solid magnetic material has been used.

(Problems to be solved by the invention) When the induction heating applicator is used on a human body that is a body to be heated, the magnetic pole spacing of the applicator is adjusted to fit closely to the size of the affected part of the human body or the shape of the part. The high-frequency magnetic field must be efficiently guided to the affected area by using the conventional solid magnetic material, but there is a problem that such adjustment is difficult.

It is an object of the present invention to solve the above problems and to provide an induction heating plicator which is configured to adjust the magnetic pole spacing and can efficiently guide a high frequency magnetic field to the affected area.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention is directed to a pair of magnetic poles made of solid ferrite whose tips are opposed to each other, and end portions of the magnetic poles which are not opposed to each other. A flexible magnetic core that connects between the
A coil wound around each of the magnetic poles and the flexible magnetic core, and the gap between the pair of magnetic poles can be changed by deforming the flexible magnetic core. is there.

(Operation) Since the flexible magnetic core is used, the magnetic pole spacing can be easily adjusted. For this reason, it can be deformed in accordance with the shape of the affected part of the human body, which is the object to be heated, and can be brought into close contact,
The high frequency magnetic field can be efficiently guided to the affected area.

(Example) Hereinafter, the present invention will be described in detail with reference to an example.

The drawing is a sectional view showing an embodiment of the induction heating applicator of the present invention.

This applicator is composed of a pair of magnetic poles 3 and 3 made of solid ferrite, each tip 1 of which is opposed to each other, and a flexible magnetic pole arranged so as to connect the non-opposed ends of the magnetic poles 3 and 3. Core 7 and coil 6 wound around the magnetic poles 3, 3.
And two coils 1 wound around the flexible magnetic core 2.
It is composed of 6,16 and.

The flexible magnetic core 7 is composed of a flexible container (for example, rubber) 4 connected between the magnetic poles 3, 3 and a magnetic powder 2 filled in the flexible container 4.

A flexible cooling pipe 5 is housed between the magnetic poles 3 and 3 and the flexible magnetic core 7, and the cooling water inlets / outlets 5A, 5A of the flexible cooling pipe 5 are arranged facing the outside. Has been done. By passing water to the cooling pipe 5, heat generation of the core is prevented.

According to the application having the above configuration, each coil 6,
By supplying power (current) to 16, the tip of the magnetic poles 3,3
It is possible to generate a high-frequency magnetic field between the magnetic poles 1 and 1 and perform thermal treatment of the affected part of the human body as the body to be heated arranged between the magnetic poles 3 and 3.

At this time, since the flexible magnetic core 7 is used, the deformation can be easily performed. As a result, the magnetic pole spacing is adjusted in accordance with the shape and size of the treatment site (affected part) to bring them into close contact with each other, and the high frequency magnetic field is applied. Can be efficiently guided to the affected area.

Further, when the flexible magnetic core 7 is deformed, the flexible cooling pipe 5 housed therein is also deformed, so that the function of preventing heat generation of the core due to cooling water flow is not hindered. .

The present invention is not limited to the above embodiment, but various modifications can be made. For example, the flexible container 4 may have a bellows structure. Further, the flexible container may be filled with a mixture of a silicon solution and magnetic powder or a magnetic fluid. Further, the flexible magnetic core may be composed of only a flexible magnetic material such as an amorphous magnetic alloy without using the flexible container.

[Advantage of the Invention] According to the present invention described above, since the flexible magnetic core is used, the magnetic pole interval can be easily adjusted. Therefore, it can be deformed and brought into close contact with the affected part of the human body, which is the object to be heated, and the high-frequency magnetic field can be efficiently guided to the affected part.

Further, when the flexible cooling pipe is used, the cooling pipe is also deformed according to the deformation of the core, so that the heat generation preventing function of the core is not hindered.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention. 1 ... Magnetic pole tip, 2 ... Magnetic powder, 3 ... Magnetic pole, 4 ...
… Flexible container, 5 …… Flexible cooling pipe, 6,16 …… Coil,
7: Flexible magnetic core.

Claims (2)

[Scope of utility model registration request] 1. A pair of magnetic poles made of solid ferrite whose ends are opposed to each other, a flexible magnetic core connecting between the ends of the magnetic poles which are not opposed to each other, and windings around the magnetic poles and the flexible magnetic core. An induction heating applicator, which comprises a wound coil and is configured so that the interval between the pair of magnetic poles can be changed by deforming the flexible magnetic core. 2. The induction heating applicator according to claim 1, wherein a flexible cooling tube is housed inside each of the magnetic poles and inside of the flexible magnetic core.