Clinical application Chemotherapy assisted with microwave heat treatment can promote the effect of chemical agents 10-14 time.
KJ-9000 Microwave tumor heat treatment system
Over these years, NOVA company has also devoted its efforts to the research on tumor thermotherapy technology and clinical treatment plan, and developed Microwave tumor heat treatment system, which can be used for heat treatment of regional tissues, part, intracavity and some benign diseases. This system has National patented technology, Software copyrights, Provincial national key scientific and technological Planning programm, which listed in National “Torch” project, recognizedhigh and new technology product. The advanced tumor heat treatment concept and unique, mature and perfect tumor comprehensive treatment plan as well, which has brought about hope and benefits to the patients with tumor diseases and social and economic benefits to medical institutions.
System configuration and technical characteristics:
1. Microwave source: 433MHz/915MHz pressure control solid microwave made up of the PLL exciter, MOS power amplifier and circulator, absorbing load and PID control circuit, which solves microwave absorption problems in processes such as microwave transfer, coupling, matching and reflected wave.
2. Radiator: external exposure use lens type waveguide structure, with reasonable design of impedance matching and uniform heating field distribution controlling. Used for regional chest, abdomen, pelvic cavity tumor and part tumor thermotherapy.
3. Noninterference temperature measurement system: the technology of precise temperature measurement using high resistance line.(National second class prize), realize multipoint automatic real-time temperature measurement. Successful solve down-lead self-heating effect and microwave radiated interference problem on electromagnetic field environment.
4. Automatic control system: Specialized computer heat treatment software to realize the treatment parameter setup, multi-spot automatic temperature measurement, self-adapted temperature control, data processing during treatment, display, storage and print, automatic diagnostic trouble alarm mode.
Working principle:
When microwave with a certain output has effects on the tissue, the polar molecules in cells will turn the energy of electromagnetic field into heat which increases temperature in the tissues and thus improve the local blood circulation, relieve pain, accelerate the recovery of injury to achieve desirable theraperature effect. When microwave radiates through tumor tissues, increases its temperature over 39.5°Cand keep the temperature for a while, make good cooperative sensitized effect for radiotherapy, chemotherapy and immunization therapy, when tumour tissue temperature over 41.5°Cand keep the temperature for a while, cancer cells become necrotic, so that the patient can acquire effective therapy through heat treatment
Main technical parameters:
1. Working frequency: 433.9MHz ± 4MHz
2. Output power: 0-200W adjustable continually
3. Temperature control: 4 channels, 25-50°C, accuracy ± 0.2°C
4. Voltage standing wave ratio: ≤2
5. Range of time setting: 0-90 minutes
6.Radiator: large diameter, 200W+200W backup power compensation
7. Input power: ≤2000VA
8. Solid-state source: power rating 400W, lifetime is 10 years.
KJ-9000 Microwave Tumor heat treatment system
