JPS6020018B2 - In-vivo implantable heat concentration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an in-vivo heating concentrator made of a good conductor such as a metal piece and used by being placed in a heating field in a living body in high-frequency heating bath therapy.

When we researched the effect of placing a good conductor such as a metal piece in a high-frequency return electrode heating field, we found that the phenomenon of localized heating of the metal piece due to heat generation due to absorption of electromagnetic fields by the metal, which was previously said, was not very noticeable. Rather, less heat was generated within the metal.

This is a natural phenomenon since heating of the return electrode is generated by Joule heat. However, strong heating was often observed between the metal piece and the living body, and in some cases no overflow was observed.

From this phenomenon, if there is a heat-generating concentrator that, by implanting a single metal piece into a return electrode heating field, will not be heated in some areas that are in contact with the metal piece, but will locally have strong greening in other areas, We realized that local warming bath therapy for cancer cells, etc., can be extremely effective. As a result of investigating this phenomenon, it was discovered that the structure of the metal piece is such that the current in the high-frequency heating field is concentrated on the metal piece.

That is, a large-shaped part having a smooth wide area such as a conical shape or a teardrop shape, a small-shaped part having a sharp area, and a conical part that integrally connects the large-shaped part and the small-shaped part. It was found that there was no humidification on the smooth, wide-area contact surface of the metal piece, and strong heating was concentrated on the mirror-like, small-area contact surface at the tip. The present invention will be explained in detail with reference to examples shown below.

In FIG. 1, reference numeral 1 denotes a pair of electrode plates connected to a high frequency generator, and the human body 3 is placed between them.

It has been known for a long time that when a high frequency power of about 10 MH2 is applied to these two electrode plates, a high frequency induced current flows through the human body 3 to warm the human body deep inside. Reference numeral 2 denotes a cone-shaped or teardrop-shaped heat concentrating device made of a good conductor such as a metal piece according to the present invention, and is shielded in the area to be heated.

In the case of the embodiment shown in FIG. 2, the heat generating concentrating tool 2 is composed of a rounded ball with a smooth large area and a radius R1 (30 skin?), and from this spherical part there is a sharp 4. The portion up to the small portion having a large area is a conical portion. The green connection between the sphere and the cone is integrally formed with a radius R2 and has a total length of 72 sails. In FIG. 1, when a current flows between the electrode plates 1, heat is generated concentrated in a small, pointed part of the heat-generating concentrated odor 2, as shown by the broken line. This phenomenon is a physical phenomenon that occurs when the current in the living body concentrates on the low resistance part of the heat-generating concentrator 2, which is a good conductor. Effective heating can be performed. In the case of the example, it was possible to heat the inside of the three skin spheres to 42°C from the tip of the heat-generating concentrating shell of the metal piece inserted into the six arcs under the skin of the living body with only 100 W of power. In normal return electrode humidification, which is not used, the injection of 500W of power is the limit at the human skin surface, but even in this case, the deep temperature is 41.
It is rare for 4 to exceed 0 up to ℃. The good conductor used for the heat generating concentrator 2 may be any electrical resistance wire, such as epoxy conductor, iron, etc.
Copper, aluminum, stainless steel, gold, etc. can be used, but iron-based materials, which also have microwave heating and magnetic field flooding characteristics, can be used in combination, and are therefore preferable.

As described above, according to the present invention, the large-shaped part having a large area is brought into contact with the part of the living body that is not desired to be heated, and the small-shaped part having an iron-like small area is the part to be heated. By heating the return electrode by placing it in contact with the electrode, it is possible to generate concentrated heating in the small-shaped part, which is an excellent effect of flooding the local area with a small amount of electric power. Not only that, but the return electrode plate generates less heat, so there is no need to apply strong cooling to the return electrode plate.

[Brief explanation of the drawing]

FIG. 1 is a schematic view of one mode of use of the present invention, showing a main part thereof in a longitudinal section, and FIG. 2 is an embodiment of the present invention. 1... Electrode plate, 2... Heat generating concentrator, 3
······human body. Figure 1 Figure 2

Claims (1)

[Claims] 1. An in-vivo implantable heat concentrating device made of a good conductor such as a metal piece and used by being implanted in a heating field in a living body in high-frequency heating therapy has a large-shaped part with a smooth wide area and a sharp small area. A heat generating concentrator implanted in a living body, comprising a small-shaped part and a cone-shaped part that integrally connects the large-shaped part and the small-shaped part.