Temperature field control system for whole body thermotherapy
Technical Field
The utility model relates to an electric infrared thermal therapy device field especially relates to a temperature field control system of whole body thermal therapy.
Background
With the increasing of the incidence of tumor, new treatment modes and treatment methods are developed successively, and the thermotherapy can kill cells which are insensitive to radiotherapy and are in an environment with hypoxia, nutrient deficiency, low pH value and tumor stage being S phase, the action mechanism of the thermotherapy is that the core temperature of a human body is quickly increased to 38-42 ℃ within the tolerance degree range of the human body through a near infrared heat source machine, similar to the natural fever condition of the human body, the natural fever of the human body can activate the immune system of the human body, the metabolism is accelerated, the circulation of organs and tissues is enhanced, and the secretion of auxin is stimulated, so that immune factors such as natural killer cells, lymphocytes and the like are increased, the nerve conduction is accelerated, and the reactivated immune cells can specifically kill cancer cells by using cytotoxicity, thereby achieving the purpose of eliminating the tumor.
In the whole body thermotherapy treatment process, monitoring the temperature distribution of human tissues is the key of the thermotherapy treatment effect, but the intensive close distribution of temperature measuring probes in a human body is inconvenient and uneconomical, the distribution of the temperature field in the body cannot be known, and the numerical simulation of the temperature field by using a computer is an important means for predicting the distribution of the temperature field in the thermotherapy treatment process. The skin surface of a human body is 0-2cm in skin temperature, the temperature rises quickly, the skin temperature deeper than 2cm is core temperature, when the thermal therapy is irradiated, the skin temperature rises quickly, the core temperature is relatively slowly raised, the core temperature range is 37-42 ℃ when the human body is thermally treated, 40 ℃ is the optimal thermal therapy core temperature, and the thermal pain threshold of the skin on the surface of the human body is 45 ℃, so that different frequencies sent by an infrared energy radiation source are required to be controlled to control the heated temperature of the human body, meanwhile, because the heat conduction speeds of four limbs, a trunk and a head of the human body are not uniform, the temperature rise speed difference of the core temperature of each part can be caused, the temperature field is controlled in real time when the temperature of each part of the human body is monitored in real time, and thermal injury is avoided.
Disclosure of Invention
In order to solve the technical problems, the temperature field control system for whole body thermotherapy has the characteristics of automatically sensing the temperature field of the human body core, intelligently sensing the temperature of the human body, flexibly controlling the temperature and avoiding thermal injury.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a temperature field control system for whole body hyperthermia, comprising: the system comprises an infrared therapeutic apparatus, a display control device, a temperature field simulation device, an infrared radiation control device, a thermal infrared imager and a laser Doppler blood flow instrument;
the thermal infrared imager, the infrared radiation control device and the temperature field simulation device are all connected with the display control device, and the laser Doppler blood flow instrument is connected with the temperature field simulation device;
the thermal infrared imager is used for detecting the skin temperature of a human body in real time and transmitting an infrared thermal image to the display control device;
the infrared radiation control device is used as an external infrared energy source for the whole body thermotherapy, and the power and the intensity of the infrared energy source are controlled by the display control device;
the display control device is used for processing the infrared thermal image transmitted by the thermal infrared imager, transmitting the processed and extracted information to the temperature field simulation device, judging whether to adjust the power and the intensity of the infrared energy radiation source or not according to the nuclear temperature of the heated body transmitted by the temperature field simulation device and transmitting a signal to be adjusted to the infrared radiation control device;
furthermore, the infrared radiation control device comprises an infrared generator, an infrared thermotherapy antenna and an infrared radiation control singlechip;
furthermore, the infrared thermotherapy antenna is a plurality of groups of radiating microstrip array antennas;
furthermore, the infrared generator in the infrared radiation control device further comprises a phase shifter unit, a power divider unit and an amplifier unit; the phase shifter performs phase shifting with different amplitudes on signals of different paths; the power divider unit comprises a plurality of divided power divider circuits, and the amplifier unit comprises an amplifier;
furthermore, a plurality of infrared subareas are arranged on the infrared therapeutic apparatus;
furthermore, the infrared subareas comprise a head subarea, a left arm subarea, a right arm subarea, a chest subarea, an abdominal cavity subarea, a left leg subarea and a right leg subarea, wherein the area location points are respectively arranged at the middle positions of seven areas, and the seven area location points form an infrared thermograph temperature field and a core temperature field;
the utility model has the advantages as follows:
adopt the utility model discloses, through human body core temperature field, to human each position heat-conduction inequality, form human subregion infrared chart temperature field and body core temperature field, the different frequency that sends through display control device and infrared radiation controlling means controls human each position temperature of being heated, reduces human each position because of the uneven each part core temperature rising speed difference that leads to of heat-conduction, avoids the thermal damage.
Drawings
Fig. 1 is an overall schematic view of the present invention;
fig. 2 is a schematic view of the infrared radiation control device of the present invention;
reference numerals: 1-infrared therapeutic apparatus, 2-human body, 3-infrared partition, 4-laser Doppler blood flow meter, 5-temperature field simulation device, 6-display control device, 7-thermal infrared imager, 8-infrared radiation control device, 81-infrared generator, 82-infrared thermotherapy antenna, 83-infrared radiation control single chip microcomputer, 84-phase shifter unit and 85-amplifier unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a temperature field control system for whole body hyperthermia, comprising: the system comprises an infrared therapeutic apparatus 1, a display control device 6, a temperature field simulation device 5, an infrared radiation control device 8, a thermal infrared imager 7 and a laser Doppler blood flow instrument 4;
the thermal infrared imager 7, the infrared radiation control device 8 and the temperature field simulation device 5 are all connected with the display control device 6, and the laser Doppler blood flow instrument 4 is connected with the temperature field simulation device 5;
the thermal infrared imager 7 is used for detecting the skin temperature of the human body in real time and transmitting an infrared thermal image to the display control device;
the infrared radiation control device 8 is used as an external infrared energy source for whole body thermotherapy, and the power and the intensity of the infrared energy source are controlled by the display control device 6;
the display control device 6 is used for processing the infrared thermograph transmitted by the thermal infrared imager 7, transmitting the processed and extracted information to the temperature field simulation device 5, judging whether to adjust the power and the intensity of the infrared energy radiation source or not according to the temperature of the heated body core transmitted by the temperature field simulation device 5, and transmitting a signal to be adjusted to the infrared radiation control device 8;
further, the infrared radiation control device 8 comprises an infrared generator 81, an infrared thermotherapy antenna 82 and an infrared radiation control single chip microcomputer 83;
further, the infrared thermal therapy antenna 82 is a plurality of groups of radiating microstrip array antennas;
further, the infrared generator 81 in the infrared radiation control device 8 further includes a phase shifter unit 84, a power divider unit, and an amplifier unit 85; the phase shifter performs phase shifting with different amplitudes on signals of different paths; the power divider unit includes a plurality of 1-to-4 power divider circuits, and the amplifier unit 85 includes 16 amplifiers;
further, a plurality of infrared subareas 3 are arranged on the infrared therapeutic apparatus 1;
furthermore, the infrared subarea 3 comprises a head subarea, a left arm subarea, a right arm subarea, a chest subarea, an abdominal cavity subarea, a left leg subarea and a right leg subarea, wherein the area location points are respectively arranged at the middle positions of seven areas, and the seven area location points form an infrared thermograph temperature field and a core temperature field;
the specific working process of the utility model is that when a human body 2 enters the infrared heat treatment instrument 1, the infrared subareas 3 correspond to each part of the human body; in the thermal therapy process, the human blood perfusion rate is defined as the blood flow in tissues in unit time volume and is measured by a laser Doppler blood instrument 4, firstly, the human blood perfusion rate of the human body is obtained by the laser Doppler blood instrument 4, the information is transmitted to a temperature field simulation device 5 for modeling of biological heat conduction, and the optimized variable is the core temperature of seven partitions of the human body; the thermal infrared imager 7 detects the temperature information of the epidermis of the human body and forms an infrared chart, then the infrared chart is transmitted to the display control device 6, and through the display control device 6, a doctor carries out proportional processing on the acquired infrared chart and the temperature of the nuclear body, and marks the infrared chart and the nuclear body temperature field; after an infrared heat source generates a signal, the signal is divided into sixteen paths with equal amplitude and in phase and is respectively sent to sixteen path phase shifting components, a phase shifter unit 84 carries out phase shifting with different amplitudes on the signals of different paths according to a signal instruction output by a single chip microcomputer in an infrared radiation control device 8, a power amplifier unit 85 carries out power amplification on the heat source signal, when the positions of required beam focusing are different, a display control device 6 is used for sending the focusing position to the single chip microcomputer in the infrared radiation control device 8, the position information is sent to the phase shifter, the phase shifter carries out phase shifting with different amplitudes on the signals of different antenna radiation units, finally, the change of a radiation antenna focusing area is completed, and the power amplifier unit 85 adjusts the energy of an antenna according to the temperature and the radiation effect required to be heated;
adopt the utility model discloses, through human body core temperature field, to each part heat-conduction inequality of human body, form human subregion infrared chart temperature field and body core temperature field, the different frequencies that send out through display control device 6 and infrared radiation controlling means 8 control each part of human body temperature of being heated, reduce each part of human body because of the uneven each part of heat-conduction leads to each part core temperature rising speed difference, avoid the heat damage.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.