JP2015119797A - Microwave therapeutic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microwave therapeutic device capable of performing hyperthermic treatment with excellent heating efficiency in a relaxed state without the patient minding the position of an antenna and reducing an erroneous operation due to unexpected radiation on portions other than an affected part to be treated or a radio wave hindrance on another electrical device.SOLUTION: A microwave therapeutic device comprises: an antenna including an attachment having antenna fixing means to be fixed on the affected part of a patient; and radiant efficiency improving means for reducing the microwave to be radiated from the antenna to portions other than the affected part so that the affected part can be efficiently treated.

Description

 The present invention relates to a microwave treatment device that radiates microwaves to a living body affected part and performs thermal treatment, and particularly relates to fixing an antenna that radiates microwaves to a living body affected part.

A microwave therapy device is a thermal therapy device that radiates and heats a microwave emitted from an antenna to a living tissue.
The microwave radiated from the antenna is absorbed by living tissue as microwave energy composed of an electromagnetic field, thereby warming the affected area to become a thermotherapy.
Here, microwaves can be heated deeper in patients compared to treatment devices that use conduction heat such as heaters or radiant heat such as infrared rays due to the characteristics of the frequency band of the microwaves. Irradiation is possible even if there are obstacles such as clothes worn by the patient between them, and the patient has the advantage that the desired affected area can be treated with heat without taking off the clothes.

   FIG. 3A is an external view of a conventional microwave therapy device. In this treatment device, a round antenna 24 for treating a relatively narrow range and a wide antenna 25 for treating a wide range are provided, and the antenna is selectively used according to the range of the affected part to be treated.

Conventionally, when using a microwave therapy device for hyperthermia treatment for a patient, the method of fixing the antenna to the affected area is located near the affected area where the antenna is attached to the arm provided on the main body of the therapy apparatus and the antenna is radiated. The position is fixed by fixing the arm.
This is shown in FIGS. 3 (b1), (b2), and (b3). In this method, since the patient can move freely, the arm must be fixed during the treatment. Therefore, the patient is instructed not to move and the arm is fixed. . Thus, patients are forced to maintain their posture during treatment.

   3B, the conventional antenna 24 is used without contact from the human body 28 during treatment. The conventional antenna 24 must be treated with a certain distance from the human body 17. This is because, when treatment is performed in the vicinity of the conventional antenna 24, heating by an unscheduled magnetic field other than the originally planned electric field is generated, thereby causing unevenness in a portion to be heated and causing local unevenness. This is because there is a problem that heating occurs.

In addition, since the antenna 24 is used in a non-contact manner, there is a problem of unexpected radiation due to microwave leakage from the antenna, and malfunction due to radio wave interference to other electrical equipment. Depending on the distance to the human body, impedance matching between the antenna and the human body becomes inappropriate, and there is a therapeutic problem that the planned heating efficiency is lowered.
With respect to this problem, Patent Document 2 discloses a means for securing the distance between the antenna 24 and the human body 17 to a certain distance or more and providing an electromagnetic shielding cover.

   However, even with this method, the patient is forced to maintain his / her posture during treatment, and there remains a problem that treatment cannot be performed in a relaxed state without worrying about the position of the antenna.

   With respect to this problem, Patent Document 1 discloses means for fixing an antenna to a patient, but in this case, the frequency band of radiated electromagnetic waves is different and is not a microwave but a high frequency band of about MHz. In addition, the effect of deep treatment is low, and the treatment effect of deep heating like microwaves cannot be expected.

JP 2007-020935 A JP 2004-313582 A

   Since the microwave therapy device antenna must be used in a non-contact and constant distance, a means for preventing microwave leakage is required, and the antenna cannot be reduced in size without reducing the heating efficiency. There is a problem that the patient cannot be treated in a relaxed state without worrying about the position of the antenna.

   The present invention has been made in view of the above points, and the patient can perform heat treatment with high heating efficiency in a relaxed state without worrying about the position of the antenna. An object of the present invention is to provide a microwave therapy device that can reduce malfunctions caused by radio wave interference to other electrical devices.

The invention described in claim 1
An oscillating unit for generating microwaves;
A power supply unit for supplying power for driving the oscillation unit;
An antenna for radiating the microwave to the affected area to be treated by the patient;
In a microwave therapy device with
The antenna is provided with an attachment having an antenna fixing means for fixing to the affected part of the patient,
The main feature is that a radiation efficiency improving means is provided which reduces the microwaves radiated from the antenna to the part other than the affected part so that the affected part can be efficiently treated.

The invention according to claim 2 is the microwave therapy device according to claim 1,
The attachment has a chair shape composed of a seat and a dorsal part, and the antenna is embedded in the dorsal part and antenna lumbar spine fixing means is provided so that the microwave can be emitted to the patient's lumbar part. Features.

The invention according to claim 3 is the microwave therapy device according to claim 1 or 2,
The shape of the attachment is a chair shape including a seat portion and a footrest portion, and the antenna is embedded in the footrest portion, and antenna lower limb fixing means is provided so that the microwave can be emitted to the lower limb portion of the patient. And

According to a fourth aspect of the present invention, there is provided the microwave treatment device according to the first to third aspects,
The attachment has a chair shape composed of a seat and an armrest, and the antenna is embedded in the armrest, and an antenna upper limb fixing means is provided so that the microwave can be radiated to the arm, hand, and elbow portions of the patient. Is the main feature.

According to a fifth aspect of the present invention, there is provided the microwave treatment device according to the first to fourth aspects,
The attachment has a chair shape composed of a seat and a dorsal part, and the antenna is fixed in the dorsal part so as to radiate the microwave to the patient's shoulder part. Features.

The invention according to claim 6 is the microwave treatment device according to claims 1 to 5, wherein
The attachment has a chair shape including a seat and a footrest, and the antenna is embedded in the footrest, and an antenna foot fixing means is provided so that the microwave can be radiated to the foot of the patient. Is the main feature.

The invention according to claim 7 is characterized in that it is provided with a detachable means capable of detaching the antenna fixing means from the attachment according to claims 1 to 6.

According to an eighth aspect of the present invention, the antenna fixing means according to any one of the first to seventh aspects is provided with a fixed position changing means capable of changing a fixed position of the antenna within a range of the antenna fixing means. Is the main feature.

The invention according to claim 9 is characterized in that the fixed position changing means according to claim 8 is provided with automatic fixed position changing means capable of automatically changing the fixed position in accordance with a program. .

The invention according to claim 10 is the microwave treatment device according to claims 1 to 9, wherein
The main feature is that automatic stopping means is provided so that the microwave is not emitted when the antenna fixing means is not fixed to the affected part of the patient.

   According to the present invention, the patient can perform heat treatment with high heating efficiency in a relaxed state without worrying about the position of the antenna, and further, unexpected radiation other than the affected part to be treated and radio wave interference to other electrical equipment It becomes possible to provide a microwave therapy device that can reduce malfunctions caused by the above.

It is one Example of the attachment of the microwave therapy device which concerns on Claims 1 thru | or 4 of this invention. It is a circuit block diagram which generates the microwave of the conventional microwave therapy device. It is the external view of the conventional microwave therapy device, and the schematic showing the mode of treatment. It is one Example of the attachment of the microwave therapy device which concerns on Claim 4 of this invention. It is one Example of the attachment of the microwave therapy device which concerns on Claim 5 of this invention. It is one Example of the attachment of the microwave therapy device which concerns on Claim 6 of this invention. It is one Example of the antenna fixing means which concerns on this invention.

   Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of an attachment of a microwave therapy device according to claims 1 to 4 of the present invention.
FIG. 2 is a circuit block diagram for generating a microwave of a conventional microwave therapy device.
FIG. 3 is an external view of a conventional microwave treatment device and a schematic view showing a state of treatment. FIG. 3A is a schematic view of a main body of a microwave therapy device having a conventional antenna. FIG. 3 (b1) is an explanatory view of a state when a lumbar spine is treated with a conventional microwave therapy device. FIG. 3 (b2) is an explanatory view of a state when treating a shoulder with a conventional microwave treatment device. FIG. 3 (b3) is an explanatory view of a state when a leg is treated with a conventional microwave therapy device.
FIG. 4 shows an embodiment of an attachment of a microwave therapy device according to claim 4 of the present invention.
FIG. 5 shows an embodiment of an attachment of a microwave therapy device according to claim 5 of the present invention.
FIG. 6 shows an embodiment of an attachment of a microwave therapy device according to claim 6 of the present invention.
FIG. 7 shows an embodiment of the antenna fixing means according to the present invention. FIGS. 7A1 and 7A2 are structural views of an embodiment of the means for actually fixing the antenna. FIGS. 7B1 and 7B2 are schematic diagrams of antenna shapes. FIG. 7C is a schematic view when the antenna is fixed to the antenna fixing means.

Hereinafter, a microwave treatment device according to claims 1 to 8 of the present invention will be described.
A circuit block diagram of the microwave therapy device is shown in FIG. Since the function of the control unit of the main body is not particularly related to the present invention, a detailed description thereof will be omitted. Here, a circuit block diagram relating to an oscillation unit that generates a microwave will be mainly described.
A high-voltage transformer 21, a rectifier 22, a magnetron 23, and an antenna 24 are included. The AC 100V AC input is boosted by the high voltage transformer 21 and then rectified by the rectifier 22 and supplied to the anode of the magnetron 23. When the anode voltage of the magnetron 23 exceeds the oscillation voltage, the magnetron 23 oscillates and generates a microwave. The generated microwave is radiated from the antenna 24. Mainly high voltage transformers, these circuits are controlled by the control unit to control microwave radiation and perform thermotherapy.
Next, the structure of the antenna fixing means according to the present invention is shown in FIGS. 7 (a1) and (a2). Here, FIG. 7A1 is a diagram of the antenna fixing unit viewed from the front, and FIG. 7A2 is a diagram of the antenna fixing unit viewed from the back.
The antenna fixing means includes a radiating portion 72 and an antenna throttle 71, and the antenna can be inserted from the side.
As the material for the antenna fixing means, a resin material that does not absorb microwave electromagnetic waves and does not contain carbon or the like that is easy to transmit is used. In some cases, there is no problem if a metal or the like is partially used.
FIGS. 7B1 and 7B2 show examples of antenna shapes. This antenna is a contact antenna using a patch antenna, and the antenna shape is a thin plate shape, which is easy to use. FIG. 7C is a schematic view when the antenna of FIG. 7B1 is inserted.
The antenna throttle 71 can be inserted in accordance with the shape of the antenna. Originally, the antenna shape is preferably the thin plate shape shown in FIGS. 7 (b1) and (b2), but even the conventional antenna 24 can be inserted in the same manner by providing an antenna throttle 71 corresponding thereto. Is possible. However, when the conventional antenna 24 is used, a place for storing the rear part of the antenna has to be secured, so that the place where the antenna can be installed is limited.
By adjusting the distance between the antenna inserted into the antenna throttle 71 and the radiating portion 72 so as to maintain a constant distance, it is possible to use either a non-contact type antenna or a contact type antenna.

A typical example in which the antenna is completely buried in a chair using this antenna fixing means is shown in FIG.
FIG. 1 includes a chair 11, a waist radiating unit 12, an arm radiating unit 13, a leg radiating unit 14, an indicator lamp 15, a side panel 16, and a main body 27.
Here, since the antenna is buried, it is possible to fix the antenna without using the antenna fixing means described above. The coaxial cable 26 is also buried in the chair 11 to prevent cable breakage. In FIG. 1, the main body 27 exists outside, but may be built inside the chair 11. In this case, the device is operated from the side panel 16.

   As described above, each radiation part of the microwave is fixed to each part of the chair, so that the patient does not have to forcibly maintain the conventional posture by leaning on each part of the chair, and the patient is in a relaxed state. It becomes possible to treat.

The fourth aspect of the present invention will be described below.
As shown in FIG. 4, a hand radiating portion 41, a hand radiating portion (with a cover) 42, and an elbow portion radiating portion (with a cover) 43 are provided using antenna fixing means.
Here, the hand portion radiating portion 41 is simply provided with an antenna fixing means at this position. The hand radiating portion 43 is provided with a cover for ensuring the fixation of the affected part, and further provided with a radiating portion on the cover side. The same applies to the elbow radiating portion 43. Moreover, these each part is removable.
As a result, it is not necessary for the patient to maintain hands, arms, and elbows, which are difficult to maintain his / her posture, and the patient can be treated in a relaxed state.

Hereinafter, claims 3 and 6 of the present invention will be described.
As shown in FIG. 6, the leg radiation | emission part 61 and the sole radiation | emission part 62 are provided using an antenna fixing means.
Here, the leg radiation | emission part 61 and the sole radiation | emission part 62 are provided with the cover in order to ensure fixation of an affected part, and also provide the radiation | emission part also in the cover side. Moreover, these each part is removable.
As a result, it is not necessary for the patient to maintain his / her legs and soles, which are difficult to maintain his / her posture, by his own efforts, and the patient can be treated in a relaxed state.

The fifth aspect of the present invention will be described below.
As shown in FIG. 5, shoulder radiating portions 51 and 52 are provided using an antenna fixing means.
Here, the shoulder radiating portions 51 and 52 are provided with a cover for ensuring fixation of the affected part, and further provided with a radiating portion on the cover side. Moreover, these each part is removable.
This eliminates the need for the patient to maintain his / her shoulder, which is difficult to maintain his / her posture, by himself / herself, and allows the patient to be treated in a relaxed state.

DESCRIPTION OF SYMBOLS 11 Chair 12 Waist part Radiation part 13 Arm part radiation part 14 Leg part radiation part 15 Indicator lamp 16 Side panel 21 High voltage transformer 22 Rectifier 23 Magnetron 24 Conventional antenna 25 Conventional wide antenna 26 Coaxial cable 27 Main body 28 Human body 41 Hand radiation part 42 Hand radiation part (with cover)
43 Elbow Radiation (with cover)
51 Shoulder radiation (with side cover)
52 Shoulder radiation (with top cover)
61 Leg radiation part (with cover)
62 Sole radiation (with cover)
71 Throttle 72 Radiator

Claims (8)

An oscillating unit for generating microwaves;
A power supply unit for supplying power for driving the oscillation unit;
An antenna for radiating the microwave to the affected area to be treated by the patient;
In a microwave therapy device with
The antenna is provided with an attachment having an antenna fixing means for fixing to the affected part of the patient,
A microwave therapy device comprising a radiation efficiency improving means for reducing the microwaves radiated from the antenna to a part other than the affected part so that the affected part can be efficiently treated. The attachment has a chair shape including a seat part and a back part, and the antenna is embedded in the back part, and antenna lumbar spine fixing means is provided so that the microwave can be emitted to the lumbar part of the patient. The microwave therapy device according to claim 1. The shape of the attachment is a chair shape composed of a seat portion and a footrest portion, and the antenna is embedded in the footrest portion, and antenna lower limb fixing means is provided so that the microwave can be radiated to the lower limb portion of the patient. The microwave therapy device according to claim 1 or 2. The attachment has a chair shape composed of a seat and an armrest, and the antenna is embedded in the armrest, and an antenna upper limb fixing means is provided so that the microwave can be radiated to the arm, hand, and elbow portions of the patient. The microwave therapy device according to any one of claims 1 to 3. The attachment has a chair shape including a seat portion and a dorsal portion, and the antenna is embedded in the dorsal portion, and antenna shoulder fixing means is provided so that the microwave can be radiated to the shoulder portion of the patient. The microwave therapy device according to any one of claims 1 to 4. The attachment has a chair shape including a seat and a footrest, and the antenna is embedded in the footrest, and an antenna foot fixing means is provided so that the microwave can be radiated to the foot of the patient. The microwave therapy device according to claim 1, wherein: 7. A microwave therapy device comprising a detachable means capable of detaching the antenna fixing means from the attachment according to claim 1. 8. The microwave therapy device according to claim 1, wherein the antenna fixing means includes a fixed position changing means capable of changing a fixing position of the antenna within a range of the antenna fixing means.

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