RU2262362C2 - Device for carrying out intracavitary treatment with extremely high frequency electromagnetic radiation - Google Patents

Abstract

FIELD: medical engineering.

SUBSTANCE: device has dielectric antenna connected to waveguide to electromagnetic radiation source. The antenna is manufactured as a dielectric rod and enclosed into sealed protective envelope manufactured from biologically inert material. Dielectric rings having material of relative permittivity of ε/ε₀=8 are spitted upon the dielectric rod of relative permittivity ε/ε₀=2.6.

EFFECT: enhanced effectiveness of treatment; maximum radiation directed in perpendicular to the axis.

1 dwg

Description

The invention relates to medicine, to methods of low-energy information-wave exposure.

Currently, medicine uses electromagnetic radiation (EMR) of the ultra-high-frequency (EHF) or millimeter range, which form the basis of the methods of information-wave EHF exposure (EHF therapy, millimeter therapy, microresonance therapy) [1]. These methods are based on the use of low-energy EHF EMR, introducing minor perturbations into the thermodynamics of a living organism comparable with the thermal noise of a biological system [2]. Therefore, EHF EMR, characterized by the presence of therapeutic effects, are classified as therapeutic factors of an informational nature [3]. The impact of EHF EMP is produced on biologically active points (BAP) non-invasively or invasively [4], as well as on internal organs [5]. With direct irradiation of the internal organs of a biological object, a flexible waveguide in a protective sheath with a sealed end is inserted into the patient’s body, and the diameter of the radiation spot is 4–6 mm [5]. The specified device for intracavitary exposure can be considered a prototype of the proposed device. At the same time, due to the fact that electromagnetic oscillations have the character of a traveling wave propagating at a speed close to the speed of light in the direction of the axis, this device has the main radiation maximum along the axis (spot diameter 4-6 mm) and weak radiation in perpendicular to the axis direction (it is practically absent), thereby limiting the scope and reducing (sometimes to a complete absence) the effect of treatment of EHF EMP.

However, antennas are known in radio engineering in which the main radiation lobe is directed perpendicular to the axis and weak radiation along the axis. The principle of operation of such an antenna can be explained as follows [6]. Mentally divide a conventional dielectric antenna into sections of length λ _f / 2, where λ _f is the wavelength in the antenna. Along each of the sections, the phase of the field continuously varies within 180 °. Every two adjacent sections are out of phase in the sense that each element of this section corresponds to the same element in the adjacent section with the opposite phase of the EM field. Plots through one (both even or both odd) are in this sense in-phase. At the same amplitudes along the entire antenna, the radiation fields of two neighboring sections have opposite phases in the direction perpendicular to the axis and are destroyed during interference. In the presence of wave attenuation along the rod, the radiation field in the direction perpendicular to the axis, although not non-zero, is very weak.

If in any way to achieve the destruction of the radiation of even sections, the radiation will remain only odd sections, which are in-phase. In this case, intense radiation will occur in a direction perpendicular to the axis. If the previous phases of the field are preserved in the remaining sections, then intense radiation along the axis will also take place. If, simultaneously with the destruction of the radiation of even regions, the previous phase relations in the odd regions are violated, for example, by decreasing the phase velocity of wave propagation along the antenna, then intense radiation will occur in the direction perpendicular to the axis and the radiation along the antenna axis will sharply weaken.

Based on the proposed considerations, a dielectric antenna is constructed, which is a cylindrical dielectric rod with a diameter of about 0.5λ from an insulator with ε / ε ₀ = 2.6, onto which insulator rings with permeability ε / ε ₀ = 8 are inserted through certain gaps. With large diameters of the rod, the field strength on its surface is very weak, the power W _a transferred by the external space is very small, which corresponds to very weak radiation. Therefore, the parts of the rod where the rings are located practically do not radiate. At the same time, in these sections, the phase velocity drops sharply to

which violates the necessary phase ratio to obtain axial radiation. The result is an antenna having a principal radiation maximum in the direction perpendicular to the axis and weak radiation along the axis.

Rings on a dielectric rod lead to such a distortion of the initial field, which is difficult to take into account in detail, using elementary representations. In the absence of a theoretical study of this issue, the sizes of the rings and the distances between them (for changing phase ratios) are selected empirically [6].

An antenna of the described construction is placed in a sealed enclosure of a bioinert material that is protective from aggressive media, such as polyethylene. After the procedure, the shell is sterilized.

Thus, the essence of the invention is the use for intracavitary exposure to EHF EMP dielectric antenna in a protective sealed sheath of bioinert material emitting perpendicular to its axis, which improves the treatment of various diseases.

The design of the proposed device is presented in the drawing.

EHF EMP from the source - 1, passing through a metal waveguide of circular cross section - 2, filled with a dielectric with ε / ε ₀ = 2.6 - 3, passing into the rod, excites a traveling wave in it. Through certain sections, dielectric rings with ε / ε ₀ = 8 - 4, which prevent the appearance of interference of antiphase waves, are installed on the rod. The antenna is placed in a sealed protective sheath - 5 of bioinert material.

An example of a specific implementation - In the device implemented by the authors, the radiating head of the AIST apparatus [7] is used as a source of EHF EMP, which is an EHF EMP generator on an avalanche-span diode. The dielectric rod is made of fluoroplastic, and the rings are made of hetinax. As a protective sheath, a protective cap made of polyethylene with a diameter of 10 mm was used, which is part of the AIST apparatus.

LITERATURE

1. Catcher B.C. Essays on general physiotherapy. Minsk, Science and Technology, 1994.

2. Devyatkov N.D., Golant M.B., Betsky O.V. Millimeter waves and their role in the process of life. M., Radio and Communications, 1991.

3. Davydov B.I., Timonchuk B.C., Antipov V.V. Biological action, regulation and protection against electromagnetic radiation. M., Energoatomizdat, 1984 (p. 104).

4. Glukhovsky G.I., Krevsky M.A., Koshurinov Yu.I., Zinina E.S., Vogralik M.V., Bugrov S.L., Tkachenko Yu.A. A method for determining the optimal value of the therapeutic frequency of the patient with resonant acupuncture EHF-therapy and a device for its implementation. Description of the invention to patent RU No. 2107486 C1, 1993.

5. Stoletova O.E., Kudryavtsev V.K., Zimin A.I., Sular L.M., Khvatov L.G., Zhukov D.S., Rychkov Yu.V., Lagutin P.N., Kononov V.A., Kramerov G.V., Gaponyuk P.Ya. Apparatus for EHF-therapy. Description of the invention to patent RU No. 2005510 C1, 1990.

6. Fradin A.Z. Microwave Antennas. M., Sov. Radio, 1957.

7. Apparatus for microresonance effects of AIST. Operation manual DAKZH 941526.003 OM.

Claims (1)

A device for intracavitary exposure to EHF EMP, containing a dielectric antenna connected through a waveguide to an EMP source, made in the form of a rod of dielectric and placed in a sealed protective sheath of bioinert material, characterized in that on the rod of a dielectric with relative permittivity ε / ε _o = 2.6 are inserted at certain intervals of the dielectric ring with ε / ε _о = 8.