What is microwave therapy? The therapy and scope of microwave therapy
Principle
Microwave thermal effect
Most of the components of the human body are carbohydrates, and the molecules of carbohydrates are polar molecules, polar molecules Under the action of the microwave field, its polarity changes with the microwave frequency, which is called polar oscillation. The frequency of the polar oscillation is the same as the microwave frequency, and its amplitude is proportional to the microwave intensity. We all know that traditional Chinese medicine can treat cold symptoms and local inflammation through hot compresses and acupuncture; through the body’s own heat, it can achieve autoimmune function, so people think, can the heat generated by microwave irradiation on the human body achieve the purpose of curing diseases? The main reasons for the good effect of microwave hyperthermia are:
Main reasons
(1) Microwave hyperthermia is that after microwave irradiation reaches the lesion, the lesion tissue absorbs The microwave energy generates heat by itself, so the diseased tissue heats up faster than other heat packs, and the temperature is evenly distributed.
(2) Microwaves have the characteristics of selective heating: the dielectric constants of various tissues in the human body are different, so the ability of various tissues to absorb microwaves is also different. Tissues with strong microwave absorption ability heat up faster, and tissue with weak absorption energy heats up slowly. The diseased tissue is often stronger than normal tissue in absorbing microwave ability and heats up faster, so as to achieve the purpose of selective treatment. Other hyperthermia methods do not have this feature.
(3) Microwave hyperthermia can diagnose the lesion site, but other heat compress treatment methods cannot: if the lesion site is inflamed, the microvessels in the lesion site are narrowed due to the compression of the inflamed tissue, resulting in poor blood circulation. Therefore, when microwaves are used to irradiate the diseased part, the healthy tissue adjacent to the diseased part is inevitably irradiated at the same time, that is, the diseased tissue and the healthy tissue are heated by microwaves at the same time. For healthy tissue, most of the heat generated by absorbing microwaves is carried away by the circulating blood and dissipated through the skin: for diseased tissue, the temperature rises sharply due to poor blood circulation. When the temperature of the local lesion tissue rises to 38℃-39℃, the affected part will feel pain. The pain site is the lesion site, so the location of the lesion can be accurately determined. This feature is of great benefit to improving the curative effect and shortening the course of treatment.
Therapeutic mechanism of diseases
The following is a detailed analysis of the treatment mechanism of some diseases for which microwave thermal effect is particularly effective:
(1) Mechanism of treating inflammation:
Inflammation is often a local lesion caused by injury, bacterial infection or viral infection, a certain vitamin deficiency and allergy. The main feature of the lesions is poor blood circulation. When the microwave is irradiated to the diseased part, the diseased tissue will heat up rapidly. When the temperature of a certain part exceeds a certain threshold, the human body will produce a self-protection reaction – that is to strengthen the blood supply to the part and improve the conditions of blood circulation in the diseased part At the same time, it increases the nutrition of the lesions, so as to open up the capillaries that are compressed and blocked, so that the blood circulation of this part tends to be normal, and the inflammation gradually disappears.
Microwave itself has the characteristics of sterilization and disinfection, coupled with the sterilization and disinfection effect of thermal effect, so as to achieve the purpose of dredging collaterals and reducing inflammation.
(2) Mechanism of tumor treatment
A large number of studies at home and abroad have proved that tumor cells will shrink and die at the temperature of 42.5-43.5℃. Before the emergence of microwave therapy, domestic and foreign countries have been puzzled to find a way to heat tumors. After microwave heating appeared, this problem was solved.
There are two ways to treat tumors with microwaves, one is to irradiate microwaves from outside the body, and the other is to send microwaves to the affected part to directly irradiate the tumor. These two treatment methods can be selected according to the lesion site. . However, there is a common requirement: the temperature of the lesion must be kept within the range of 42.5-43.5°C. Low temperature is ineffective for tumor treatment, and high temperature will cause damage to the healthy tissue around the lesion. Therefore, when treating tumors with microwaves, certain The temperature of the tumor site should be strictly controlled. At present, microwave tumor therapy instruments that can accurately measure and control the temperature of the treated site have been produced in China.
Please rest assured that the use of microwaves to treat tumors does not cause any damage to healthy tissues irradiated by microwaves. The reason is that the blood flow at the tumor site is not smooth, and the temperature rises much faster than normal tissues under microwave irradiation. When the temperature of the lesion site rises to the treatment temperature (42.5-43.5℃), the temperature of the normal tissue will not exceed 37.5℃. According to Li Dingjiu’s “Hyperthermia”, the temperature of human tissue is below 38.5°C, which may cause cell tissue degeneration.
(3) Principles of microwave treatment of traumatic bleeding
For traumatic bleeding, irradiating the wound with microwave not only stops bleeding rapidly, but also prevents wound infection and accelerates wound healing. The reasons are:
When the microwave is irradiated on the blood flowing outside the wound, the blood absorbs the microwave energy to generate heat, the water in the blood evaporates rapidly, the blood thickens and coagulates immediately, and the coagulated blood blocks the blood vessels and wounds to achieve hemostasis. the goal of. Under the thermal effect of microwave and the high-speed conversion of polar molecules, germs (such as Escherichia coli, staphylococcus, microbes, etc.) will be killed, thus playing a role in sterilization and disinfection, so that the wound will not be infected, especially Tetanus prevention is most effective. Microwave irradiation to the human body not only has a thermal effect, but also causes biological effects. Under microwave irradiation, it can speed up blood circulation, so it can provide enough nutrients to the wound, thereby speeding up the healing of the wound.
(4) The principle of microwave hyperthermia for internal injury congestion
A large number of experiments have shown that microwave heating is effective in treating postoperative congestion in the body.
In the body, if there is local bleeding, a blood clot will form and feel like a hard lump from the outside. Where there are hard lumps, the blood vessels are blocked and the blood flow is not smooth. When the microwave is irradiated, the congestion absorbs the microwave energy to generate heat, resulting in local heating. Because the water in the body is not easy to evaporate, the blood clot is diluted, and at the same time, due to the body’s own protective reaction , to provide a large amount of lesions to the site, so as to open up the blood vessels blocked by congestion, the blood supply becomes smooth, and the congestion is absorbed by the tissue. More than 70 cases of postoperative congestion have been treated with microwaves in relevant hospitals, and they have achieved amazing results.
(5) Microwave hyperthermia can also be used to treat diseases in body cavities. However, the microwave radiator needs to be sent to the intracavitary lesion during treatment, and the treatment principle is the same as (3) and (4). In order to achieve good curative effect and patient safety, strict and accurate temperature measurement and control devices and technical measures to ensure safety must be used during intracavitary therapy.
(6) Microwave hyperthermia can also be used for pure physical therapy, such as curing the prostate gland. Open up the esophagus blocked by esophageal tumors, remove intestinal, uterine polyps, etc. The treatment principle is as follows: send the bipolar radiator to the affected part, perform instantaneous discharge, and solidify the diseased tissue. The essence of this treatment method is to burn the diseased tissue from the surface to the inside gradually through the skin effect of microwaves, so as to achieve the purpose of treatment. The following items should be paid attention to when adopting this treatment method:
a. The location of the lesion should be accurate.
b. Appropriate cooling measures should be taken in time for the treatment site.
c. Local anesthesia should be applied to the treatment area.
d. Take antibiotics after treatment.
Athermal therapy
The so-called non-thermal therapy is to irradiate weak electromagnetic waves to the relevant parts of the human body, through the biological effects produced by it. Achieving the purpose of treating the disease.
A large number of life facts and experiments have proved that microwaves can cause biological effects on the human body: for example, when 2450MHZ microwaves with a power density of 5mw/cm are used to irradiate human acupuncture points, there will be acid deposits at the irradiated acupoints, similar to acupuncture. It is felt that when the Yongquan point is irradiated with weak microwaves, the whole body will feel comfortable (people with coronary atherosclerosis have a sense of dizziness), but there is no heat. Irradiating the relevant acupoints with 35GHZ, 70mw millimeter wave power will increase white blood cells… It can be seen that the non-thermal effect exists, and the “whitening instrument” has been successfully developed.
Some foreign experts believe that the biological effect of microwaves produced by microwave irradiation on the human body is because various tissues of the human body have natural frequencies. When the microwave frequency is the same as the natural frequency of a certain tissue, the tissue will resonate. absorb. A biological effect occurs when the energy absorbed by the tissue exceeds a certain subtraction threshold. The Soviet Union has done a lot of research in this area.
Others
The non-thermal effect is mostly used for the treatment of endocrine disorders and a system disorder in the human body. Its treatment principle is similar to that of acupuncture and moxibustion in my country. But the patient does not have any pain during the microwave athermal treatment, and there is no negative effect.
Scope of use
1. Treatment of dermatology: freckles, pigmentation, age spots, various pigmented moles, flat warts, common warts, plantar warts, Condyloma acuminatum, vascular nevus, capillary hemangioma, telangiectasia, skin neoplasms, eyelid xanthoma, hair epithelioma, verrucous nevus, sebaceous nevus, sweat adenoma, syringoma, senile plaques, congenital pigment spots, hemorrhagic granuloma Swelling, skin corners, rosacea, tattoo removal, eyebrow tattoo removal, slough removal of ulcers, corns, repair of certain scars, etc.
2. Surgery (anorectal): underarm odor, circumcision, internal hemorrhoid, external hemorrhoid, mixed hemorrhoid, anal fissure, anal fistula, perianal abscess, external hemorrhoid, rectal polyp, anal papilloma, urethral caruncle Wait.
3. Stomatology: cheilitis, glossitis, gingival hyperplasia, gingival tumor, gingival bleeding, lichen planus, pericoronitis of wisdom teeth, oral ulcer, oral cyst, etc.
4. Otolaryngology: turbinate hypertrophy, epistaxis, rhinitis, nasal polyps, otitis media, otitis media, external auditory canal tumors, chronic pharyngitis, tonsillitis, drape, tongue-tie surgery, etc.
Nasal polyps, ear, external auditory canal tumors, chronic pharyngitis, tonsillitis, drape, tongue-tie surgery, etc.
5. Gynecology: vaginitis, pelvic inflammatory disease, vulvitis, cervical erosion, cervical polyps, vaginal cysts, etc.
Microwave treatment of cervical erosion
Cervical erosion is the most common pathological change in chronic cervicitis, and it is a common and frequently-occurring disease in gynecology. The pathogenic factors are mainly caused by infection, and the treatment is mainly local treatment, and physical therapy is the most used. The principle is to destroy the eroded epithelium of the cervix by various physical methods, so that after the necrosis falls off, it is covered by the new squamous epithelium. Commonly used methods include laser, electric perm, freezing, infrared coagulation and other methods, but it is easy to cause bleeding, and there are complications such as cervical canal stenosis and atresia. There are also laser therapy and cryotherapy. Due to the insufficient depth of treatment, there are problems of bleeding, and the cure rate of massive drainage is not very high. The molecules and ions of the diseased tissue at the treatment site absorb microwaves and generate high-speed motion to generate internal heat, which instantly reaches a high temperature, self-coagulation, necrosis, degeneration, shedding, uniform damage to the diseased tissue, clear boundaries, and the same depth. a cure rate. At the same time, the micro-thermal effect and non-thermal effect of microwave increase blood in the surrounding basal part of coagulated damaged tissue, strengthen metabolism, improve nutrition, accelerate regeneration, and enhance phagocytosis of leukocytes, which has good anti-inflammatory and tumor cell killing effects. Because of the fast tissue repair, it can restore the normal soft texture and appearance of the cervix, without scars, and it can also be treated for nulliparous women. There is also less postoperative vaginal discharge, short duration, smooth wound surface, and basically no side effects. Due to the direct contact between the probe and the tissue during treatment, the microwave is directionally emitted, the positioning is accurate, and the depth is easy to control. Through clinical application, microwave treatment of cervical erosion has significant curative effect, one-time cure rate is high, basically no recurrence, the lower the degree of erosion, the higher the cure rate, reducing the risk factors of cervical cancer. The microwave therapeutic apparatus for the treatment of cervical erosion has the advantages of short treatment time, high curative effect, easy mastery, safety and reliability, no pain for the patient, and low cost. It is a method worthy of popularization and application.
Precautions for microwave therapy
1 The duration of microwave therapy should not exceed 30 minutes at a time;
2 The power of microwave therapy It is appropriate for the patient to feel warm and comfortable;
3 Direct microwave irradiation should not be used where there are metal implants to avoid burns;
4 Patients with pacemakers Keep away from the microwave therapy device;
5 Do not irradiate the eyes directly;
6 Use microwave hyperthermia with caution in patients who are not sensitive to heat;
7 Do not irradiate the testis ;
