Take the technical parameters of a brand of microwave therapy instrument as an example
Microwave power: physical therapy 1-50W;surgery 1-99W
VSWR: less than 3
Physical therapy mode: pulsed microwave
Therapy mode: continuous microwave
Microwave leakage: ≤2mW/CM2
Ambient temperature: -10°C~40°C
Ambient humidity: ≦80%
Input impedance: 50Ω
Input impedance: 50Ω °C~40°C
Environmental humidity: ≦80%
Input impedance: 50Ω
Three Technical Requirements
●Output of stable microwave power is the key technology of the microwave therapy instrument, the general use of PID negative feedback technology can effectively ensure that the output of microwave power is not with the fluctuations in the fluctuations of the external power supply and fluctuations; to ensure that the therapeutic safety (to avoid burns to human tissue)
This is the first time that the microwave power has been used in microwave therapy. (to avoid the occurrence of human tissue burns)
●Phase-locked technology: when the instrument's hardware has a single failure, the CPU can be detected through the PID signal for protection, can instantly cut off the external power supply and ensure the safety of the patient to be treated;
●Pulse technology: in order to improve the therapeutic efficacy of the deeper position of the inflammatory disease, the microwave therapy instrument can be used to increase the pulse technology to enhance the microwave thermal therapy depth without having to think about cranking up the output power to ensure patient safety.
●Use of high-quality hardware: the core components of the microwave therapy instrument, including magnetron, high-voltage rectifier board, high-voltage power supply, filament power supply and fan, etc., the magnetron is the core of the core, stable output of the microwave dose designed need to be based on high-quality magnetron.
Three microwave treatment of disease mechanism
Microwave therapy instrument belongs to the heat therapy instrument, and infrared therapy instrument is to promote blood circulation to promote the absorption of inflammation and improve the nutrient supply to the cells, the difference between the other heat therapy instrument, microwave's most important feature is that it has a much stronger than the infrared penetration ability, due to the microwave therapy instrument used in the physical therapy factor of the electromagnetic wave wavelength is 122.4 millimeters, far greater than the infrared wavelength of 1 millimeter maximum, so the microwave can directly penetrate the depth of human tissue up to 5-6 centimeters, see the following left:
Therefore, microwave therapy without taking off the clothes, bone fracture patients can be directly outside the plasterboard direct irradiation. Through the microwave irradiation can directly produce the following microwave thermal effect and microwave biological effect:
(1) Microwave thermal effect
The wavelength of 12 centimeters of the electromagnetic wave through the microwave therapy head irradiation of the human body tissues, can be directly caused by the human body tissues in the depth of 5-6 centimeters of the high speed of water molecules rotate and oscillate, which caused the temperature of the tissue rises, due to the temperature rise, the human body Due to the increase in temperature, the capillaries within the tissue expansion, so that the blood can easily perfusion to the human tissue, so that the nutritional supply of tissue cells greatly improved. The very obvious feeling of warmth and comfort during treatment is a reflection of the thermal effect of microwaves.
(Schematic diagram of microwave penetrating knee joint)
(2) Biological effect of microwave
Based on the thermal effect of microwave, due to the improvement of the blood circulation, the body cells can get sufficient nutrient supply, so that the cell metabolism is greatly strengthened, so it promotes the restoration of the cell function and morphology, and at the same time, promotes the growth of the new granulation, microwave has been widely used for the wound healing after surgery. Microwave has been widely used in post-surgical wound healing physiotherapy; at the same time, due to the improvement of blood circulation, so that a large number of substances with immune function can fully reach the inflamed tissues, so that the metabolism produced by the normal life of the cells affecting the normal activities of the material to be effectively removed, restored the human body's local tissues of the cellular environment, regulating the local acid-base imbalance, so the microwave therapeutic instrument has an anti-inflammatory, decongestive and de-analgesic efficacy.
Four Clinical Scope:
●Physical Therapy Scope
Mainly including osteoarthritis disease and soft tissue inflammation disease
Osteoarthritis disease: various arthritis, synovitis, lumbar disc disease, cervical spondylosis, frozen shoulder, joint sprain and fracture and so on
Soft tissue inflammation disease: prostatitis, pelvic inflammation, adnexitis, mastitis, rhinitis, pharyngitis, pharyngitis, and other inflammatory diseases. Rhinitis, pharyngitis, otitis media, hemorrhoids, appendicitis, hemorrhoids, surgical wound infection and healing
Five precautions for use:
● Microwave physiotherapy power size to warm comfortably, can not be set too high
● Can not be directly irradiated with microwave head of the eyes
● Can not be irradiated testicles
● Can not be irradiated pregnant women's abdominal
● Cannot irradiate the pregnant women
● Can not be irradiated with microwave head of the abdomen
●Patients who are not sensitive to heat should be cautious
●Cannot point the microwave head at other electrical appliances
●Tissues implanted with metal parts should not be directly irradiated
●Patients wearing pacemakers should be kept away from microwave therapy devices in working condition
VI Physiotherapy and treatment power reference
Physiotherapy efficacy is closely related to the power used. Closely related, in principle, the power of physical therapy to the principle of warmth and comfort during physical therapy, too low to affect the onset of time, too high prone to microwave burns to the diameter of 8 centimeters of the circle as an example to illustrate:
1: Physiotherapy power to choose:
(1) general treatment of osteoarthritic diseases in the power of 8-12W or so.
(2) fat thick parts, the power should be appropriately reduced to 8-10W is good.
(3) With the improvement of inflammation, the power can be moderately adjusted upward, generally the power of normal tissues in 10-15W.
(4) Patients with heavier inflammation, such as patients with prostatitis, tend to have a stinging sensation when the power is set to 6-8W, so you can moderately adjust the power downward on the basis of 8-12W, and wait for 1 week or so of time to be treated, due to the absorption of inflammation The obvious improvement, you can gradually adjust up the physical therapy power.
(5) If you change to a larger head, such as 200*78 square head, the power can be adjusted to 15W.
2: Selection of therapeutic power
(1) The size of the therapeutic power has a relationship with the therapeutic head, and generally adhere to the principle of the first small and then the big, the inexperienced operator, you can set the power of 15 or so, and some of the surgery. The power can be adjusted up to about 40W, because the effect of electrocautery can be observed with the eyes, so when the use of higher power will greatly shorten the electrocautery time.
(2) before carrying out microwave therapy, can be tested with soap. Since soap contains a certain amount of water, similar to the case of human tissue.
Seven microwave therapeutic instrument development
Microwave therapeutic instrument belongs to the thermal therapy equipment, but to avoid microwave burns and to provide microwave efficacy is for many years at home and abroad microwave therapeutic instrument development of the main direction of the main involves
(1) the output of microwave mode: traditional microwave therapeutic instrument is a sustained microwave output mode as a feature of the main shortcomings can not be too high a power to carry out physical therapy, the main drawback is that it can not be too high power. Otherwise, it is easy to cause human tissue burns, pulsed microwave output can be higher microwave power output to the human body lesions, so that the microwave can fully elevate the temperature of the inflamed tissue to improve blood circulation, promote the absorption of inflammation and repair of damaged tissue cells
(2) High-quality physical therapy head: microwave energy is emitted through the head of the physical therapy to the human body within the tissues, but the output of microwaves, the direction and distribution characteristics are very critical. Directionality, distribution characteristics is very critical, only uniform output, and into the longitudinal wave output, in order to better improve the blood circulation of the inflammatory tissues evenly to achieve clinical efficacy.
Eight microwave therapy instrument prospects
Because of osteoarthritis diseases and most of the superficial soft tissue inflammation is aseptic inflammatory diseases, mainly due to the existence of varying degrees of microcirculation disorders, long-term microcirculation disorders lead to increased edema and tissue degeneration, so the first treatment is not a drug therapy, and improve blood circulation to achieve the organization of the inflammation and swelling and the degeneration of tissue. Degeneration of tissue rehabilitation means of treatment, so microwave therapy instrument due to strong penetration, can penetrate to the depth of human tissue 3-5 cm, which is other common means of treatment can not be achieved, because the development of microwave therapy instrument is very good, mainly to hundreds of millions of patients with inflammation to bring a real chance of recovery, so the prospects for microwave therapy instrument into the family is very good.