CN201361370Y - Microwave thermal therapy machine controlled by computer - Google Patents
Microwave thermal therapy machine controlled by computer Download PDFInfo
- Publication number
- CN201361370Y CN201361370Y CNU2009200959056U CN200920095905U CN201361370Y CN 201361370 Y CN201361370 Y CN 201361370Y CN U2009200959056 U CNU2009200959056 U CN U2009200959056U CN 200920095905 U CN200920095905 U CN 200920095905U CN 201361370 Y CN201361370 Y CN 201361370Y
- Authority
- CN
- China
- Prior art keywords
- module
- microwave
- computer
- outfan
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Radiation-Therapy Devices (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model relates to a microwave thermal therapy machine controlled by a computer, which is composed of a shell body, a microwave source module and a control module. The microwave source module and the control module are arranged in the shell body, the output end of the microwave source module is connected with a radio frequency output head which is arranged on the surface of the shell body, and the control module is electrically connected with the microwave source module, wherein the microwave source module is composed of a local oscillator adopting a microwave solid state source, an excitation amplifying module, a power distributor, a preceding stage amplifying module, a final stage amplifying module and a power combiner. The microwave thermal therapy machine has simple structure and leads low cost. Compared with present equipment which adopts a magnetron, the microwave thermal therapy machine has the advantages of light weight and small volume; the microwave thermal therapy machine can be used matching with the desktop computer, has a good man-machine interaction interface, reduces the entire volume, and improves the fluidity as well as convenience of microwave therapy.
Description
Technical field
This utility model belongs to the micro-wave therapeutic apparatus field, especially a kind of computer-controlled microwave diathermy machine.
Background technology
In 1930's, the medical personnel has found the biological effect of microwave, because becoming better and approaching perfection day by day of every technology makes micro-wave therapeutic need not anesthesia, can finish in outpatient service in recent years, has easy, safe characteristics.The microwave heat therapeutic that microwave diathermy machine adopted is a kind of noncontact mode of heating, not existing may because of what electrically contact the thermal burn that causes and electric injury, micro-wave therapeutic when operation with its superior haemostatic effect, advanced action principle, small tissue injury, replace just gradually fulgerize, traditional Therapeutic Method such as freezing, laser.According to national regulation, micro-wave therapeutic equipment is meant the equipment that utilizes the microwave radiation energy treatment disease of frequency in from 300MHZ to the 30GHZ scope, microwave diathermy machine mainly is made up of microwave source module and control module, to irradiator, irradiator is realized treatment to deep tissues by the irradiation to the human body specific region through cable transmission for microwave that the microwave source module is sent.Microwave source in the common microwave source module adopts magnetron, this magnetron is an electron tube, volume is big, the life-span is short, need to use high voltage power supply, microwave leakage and electromagnetic interference are big, its microwave output power inaccuracy, instability, and the control module that matches with it is complicated and be subject to disturb, and traditional microwave diathermy machine employing single-chip microcomputer does not have friendly human-computer interaction interface as control module yet.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides simple in structure, with low cost and has a kind of computer-controlled microwave diathermy machine of friendly human-machine interface.
The technical scheme that this utility model is taked is:
A kind of computer-controlled microwave diathermy machine, by housing, being installed in intravital microwave source module of shell and control module forms, the outfan of microwave source module connects the radio frequency delivery that is arranged on surface of shell, control module is electrically connected the microwave source module, it is characterized in that: described microwave source module is by the local oscillator of using the solid state microwave source, the excitation amplification module, power divider, the prime amplification module, final stage amplification module and power combiner are formed, the outfan of local oscillator connects the input of excitation amplification module, the outfan of excitation amplification module connects the input of power divider, two outfans of power divider connect the input of two prime amplification modules respectively, the outfan of two prime amplification modules connects the input of two final stage amplification modules respectively, the outfan of two final stage amplification modules connects two inputs of power combiner, and the outfan of power combiner connects the radio frequency delivery.
And the outfan of described two final amplifiers also connects the input of an isolator respectively, and the outfan of these two isolators connects two inputs of power combiner.
And; described control module by computer, power detection module, the temperature protection module and being used to that is used for measuring the microwave radiation temperature of the microwave diathermy machine output automatic gain control module of adjusting excitation amplification module, prime amplification module and final stage amplification module amplification coefficient forms; the input of power detection module connects the outfan of two final amplifiers respectively; power detection module is connected computer with the outfan of temperature protection module by serial port module, and computer connects the input of automatic gain control module by serial port module.
Advantage of the present utility model and good effect are:
1. the local oscillator in the microwave source module in this heat therapy machine is the semiconductor device in the solid state microwave source, its volume is less, the life-span is long, does not need to use high voltage power supply, and microwave leakage and electromagnetic interference are little, its microwave output power is accurate, stable, and the control module that matches with it is simple, cost is low.
In this heat therapy machine at the outfan of two final amplifiers isolator of connecting respectively, isolator can adopt microwave ferrite one-way transmission device, this microwave ferrite one-way transmission device only allows to pass through smoothly along the microwave of a direction transmission, and the ripple that rightabout is transmitted then has very big decay.This structure has effectively reduced the infringement of the microwave of reflection to the microwave source module.
3. the temperature protection module is installed in this heat therapy machine; this module is by the temperature of the microwave radiation of temperature sensor detection heat therapy machine output, and the real time temperature signal of its detection feeds back in the computer by serial port module and the outage of computer control microwave source module arranged with the protection patient.
4. the power detection module in this heat therapy machine detects the induction level of real-time microwave output power, and with this level feed-back to computer, computer is adjusted the amplification coefficient of each amplification module to realize higher amplification efficient by sending control signal control automatic gain control module more again.
5. this heat therapy machine can be installed Switching Power Supply to realize power supply, has overload protection function in the used Switching Power Supply, and this function has further improved the safety of microwave diathermy machine work.
6. this utility model is simple in structure, with low cost, compares with the existing equipment of magnetron that adopts, and has in light weight, the advantage that volume is little, the use that cooperatively interacts of it and desk computer has good human-computer interaction interface, has improved flowability, the convenience of micro-wave therapeutic.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model;
Fig. 3 is the workflow diagram of temperature protection program in the computer-controlled program;
Fig. 4 is the workflow diagram of power detection program in the computer-controlled program.
The specific embodiment
Below in conjunction with embodiment, this utility model is further specified, following embodiment is illustrative, is not determinate, can not limit protection domain of the present utility model with following embodiment.
A kind of computer-controlled microwave diathermy machine, as shown in Figure 1, by housing 3, being installed in intravital microwave source module of shell and control module forms, this housing can be separately two, connect by cable between each module, also microwave source module and control module can be placed in the housing, the outfan of microwave source module connects the radio frequency delivery 4 that is arranged on surface of shell, control module is electrically connected the microwave source module, innovation of the present utility model is: the microwave source module is by the local oscillator of using the solid state microwave source, the excitation amplification module, power divider, the prime amplification module, final stage amplification module and power combiner are formed, the outfan of local oscillator connects the input of excitation amplification module, the outfan of excitation amplification module connects the input of power divider, two outfans of power divider connect the input of two prime amplification modules respectively, the outfan of two prime amplification modules connects the input of two final stage amplification modules respectively, the outfan of two final stage amplification modules connects two inputs of power combiner, and the outfan of power combiner connects the radio frequency delivery.At the outfan of two final amplifiers isolator of can also connecting respectively, the outfan of these two isolators connects two inputs of power combiner.
Control module is by computer 2; power detection module; the temperature protection module and the automatic gain control module (AGC) that are used to measure the microwave radiation temperature of microwave diathermy machine output are formed; its concrete syndeton is: the input of power detection module connects the outfan of two final amplifiers respectively; power detection module is connected computer with the outfan of temperature protection module by serial port module; computer connects the input of automatic gain control module by serial port module, the outfan of automatic gain control module respectively with the excitation amplification module; prime amplification module and final stage amplification module are electrically connected.
Local oscillator, excitation amplification module, power divider, prime amplification module, final stage amplification module, isolator, power combiner, power detection module and automatic gain control module can be the cellular constructions 1 of encapsulation as shown in Figure 1.
The effect of each module is as follows:
Local oscillator can adopt microwave semiconductor device, such as common microwave diode or microwave transistor, its effect is the microwave that produces stabilized frequency, and it can adjust needed operating frequency in the scope of 915 ± 30MHz, and the stability of frequency can reach ± 2MHz.
The circuit that the excitation amplification module is made up of the PF211 chip of Mitsubishi, it is amplified to a watt level with the signal of local oscillator output.
The circuit that power divider is made up of the XC900A-01 chip of Anaren company, it will encourage amplification module to be divided into two-way output, the output of this two-way is amplified through the prime amplification module be made up of the MRF897 chip with by the final stage amplification module that the MRF899 chip is formed respectively, the signal of local oscillator is amplified to more than 120 watts, and these two quilts power combiner of being made up of the XC900A-01 chip again after by isolator of amplifying signal respectively gather and are delivered to the radio frequency delivery that surface of shell is provided with.
Isolator can adopt microwave ferrite one-way transmission device, and this microwave ferrite one-way transmission device only allows to pass through smoothly along the microwave of a direction transmission, and the ripple that rightabout is transmitted then has very big decay.This structure has effectively reduced the infringement of the microwave of reflection to the microwave source module
The circuit that power detection module is made up of the AOL90 chip of Maxim company, what it detected is the induction level that is directly proportional with the microwave output power size of final stage amplification module outfan, and this signal fed back to computer through D/A conversion back by serial port module, and compare back output control signal by computer and preset signals and control the amplification coefficient that the adjustment of automatic gain control module encourages amplification module, prime amplification module and final stage amplification module.
The circuit that the automatic gain control module is made up of the LM358 chip of ST company, its main purpose is according to the control signal of computer the amplification coefficient of excitation amplification module, prime amplification module and final stage amplification module to be adjusted, make the efficient of each amplification module higher under the identical prerequisite of the default output of the microwave output power that makes microwave synthesizer and computer, amplification module work more stable.
The temperature protection module is made up of temperature sensor; the test side of temperature sensor is used to detect the temperature of the microwave radiation of microwave diathermy machine output; generally be placed on the micro-wave therapeutic position of human body, its output signal is delivered to computer by serial port module after the D/A conversion.
Computer can be brand name computer or the kludge of buying on the market, it realizes the transmission of data signal and control signal by serial port module and other module, the function of this computer mainly is the duty that shows microwave diathermy machine, some microwave diathermy machine outputs, warning performance number, alarm temperature value are set, the demonstration of alarm signal is provided, and can also preset some management procedures of being write by high-level programming language and data base querying program so that human-computer interaction interface preferably to be provided in computer.
The serial port module of above-mentioned indication can select for use the serial port chip that has D/A and A/D change-over circuit of selling on the market to dwindle the scale of circuit.
Microwave source module, power detection module and automatic gain control module also can be packaged together in the present embodiment, are packaged together or divide the concrete form that is arranged to determine according to the volume requirement of microwave diathermy machine.
Can install Switching Power Supply in this utility model additional to realize the power supply to each module, owing to have overload protection function in the Switching Power Supply, this function has further improved the job security of each module.
The workflow of temperature protection program is as shown in Figure 3 in the computer-controlled program in this utility model:
1. program begins;
2. computer is by the input temp signal of the real-time reading temperature sensor of serial port module;
3. default alarm signal compares in this input temp signal and the computer:
The input temp signal is during less than default alarm signal
Program jumps to the A01 place and continues operation.
The input temp signal is during greater than default alarm signal
(1) computer carries out sound and light alarm, shows the numerical value of input temp signal and cut off the excitation amplification module by the automatic gain control module on the screen of computer;
(2) computer continues the input temp signal by the real-time reading temperature sensor of serial port module;
(3) whether judge the input temp signal less than default alarm signal, greater than the time, program jumps to the A02 place and continues operation; Less than the time, computer sends control signal control automatic gain control module and opens the excitation amplification module, microwave diathermy machine works on, program jumps to A01 place and continues to move.
The workflow diagram of power detection program is as shown in Figure 4 in the computer-controlled program in this utility model:
1. program begins;
2. computer is by the induction level signal of the real-time readout power detection module of serial port module;
3. default alarm signal compares in this induction level temperature signal and the computer:
The induction level signal is during less than default alarm signal
Program jumps to the A03 place and continues operation.
The induction level signal is during greater than default alarm signal
(1) computer carries out sound and light alarm, shows the microwave power value of responding to the level correspondence and the amplification coefficient of adjusting each amplification module by the automatic gain control module on the screen of computer;
(2) computer continues the induction level signal by the real-time readout power detection module of serial port module;
(3) whether judge the induction level signal less than default alarm signal, greater than the time, program jumps to the continuation of A04 place and moves; Less than the time, computer sends control signal and cuts out the adjustment of automatic gain control module to each amplification module, program jumps to the A03 place and continues operation.
Operation principle of the present utility model is:
1. local oscillator produces signal with stable frequency;
2. this signal is divided into two same signals by power divider after the blasting amplification module is amplified to watt level signal, and every road signal all is amplified to more than 120 watts through prime amplification module and final stage amplification module;
The signal that is exaggerated of two-way through the synthetic back of power combiner by the output of radio frequency delivery;
4. computer real-time detects the feedback signal by power detection module and temperature protection module, through with preset value relatively after output control signals to the amplification coefficient of automatic gain control module adjustment excitation amplification module, prime amplification module and final stage amplification module.
Claims (3)
1, a kind of computer-controlled microwave diathermy machine, by housing, being installed in intravital microwave source module of shell and control module forms, the outfan of microwave source module connects the radio frequency delivery that is arranged on surface of shell, control module is electrically connected the microwave source module, it is characterized in that: described microwave source module is by the local oscillator of using the solid state microwave source, the excitation amplification module, power divider, the prime amplification module, final stage amplification module and power combiner are formed, the outfan of local oscillator connects the input of excitation amplification module, the outfan of excitation amplification module connects the input of power divider, two outfans of power divider connect the input of two prime amplification modules respectively, the outfan of two prime amplification modules connects the input of two final stage amplification modules respectively, the outfan of two final stage amplification modules connects two inputs of power combiner, and the outfan of power combiner connects the radio frequency delivery.
2, a kind of computer-controlled microwave diathermy machine according to claim 1, it is characterized in that: the outfan of described two final amplifiers also connects the input of an isolator respectively, and the outfan of these two isolators connects two inputs of power combiner.
3; a kind of computer-controlled microwave diathermy machine according to claim 1; it is characterized in that: described control module is by computer; power detection module; be used to measure microwave diathermy machine output the microwave radiation temperature the temperature protection module and be used for adjusting the excitation amplification module; the automatic gain control module of amplification coefficient is formed in prime amplification module and the final stage amplification module; the input of power detection module connects the outfan of two final amplifiers respectively; power detection module is connected computer with the outfan of temperature protection module by serial port module, and computer connects the input of automatic gain control module by serial port module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200959056U CN201361370Y (en) | 2009-03-17 | 2009-03-17 | Microwave thermal therapy machine controlled by computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200959056U CN201361370Y (en) | 2009-03-17 | 2009-03-17 | Microwave thermal therapy machine controlled by computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201361370Y true CN201361370Y (en) | 2009-12-16 |
Family
ID=41472027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200959056U Expired - Fee Related CN201361370Y (en) | 2009-03-17 | 2009-03-17 | Microwave thermal therapy machine controlled by computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201361370Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271769A (en) * | 2013-06-18 | 2013-09-04 | 刘中一 | High-power 2450MHz solid-state-source microwave therapy apparatus |
| CN108732490A (en) * | 2018-08-31 | 2018-11-02 | 成都天箭科技股份有限公司 | The full-automatic unmanned aging test of microwave solid-state power amplifier and service life experiment system |
| CN113842560A (en) * | 2021-10-27 | 2021-12-28 | 武汉兰宝石医疗设备有限公司 | Constant-temperature pulse type microwave therapeutic apparatus |
-
2009
- 2009-03-17 CN CNU2009200959056U patent/CN201361370Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271769A (en) * | 2013-06-18 | 2013-09-04 | 刘中一 | High-power 2450MHz solid-state-source microwave therapy apparatus |
| CN103271769B (en) * | 2013-06-18 | 2016-09-14 | 刘中一 | High-power 2450MHz Solid Source microwave therapy apparatus |
| CN108732490A (en) * | 2018-08-31 | 2018-11-02 | 成都天箭科技股份有限公司 | The full-automatic unmanned aging test of microwave solid-state power amplifier and service life experiment system |
| CN108732490B (en) * | 2018-08-31 | 2024-02-23 | 成都天箭科技股份有限公司 | Full-automatic unmanned aging test and life test system for microwave solid-state power amplifier |
| CN113842560A (en) * | 2021-10-27 | 2021-12-28 | 武汉兰宝石医疗设备有限公司 | Constant-temperature pulse type microwave therapeutic apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100553579C (en) | Microwave power source and microwave ablation therapeutic equipment thereof | |
| CN1103807A (en) | Multi-frequency micro-wave therapeutic instrument | |
| CN201361370Y (en) | Microwave thermal therapy machine controlled by computer | |
| CN104739506B (en) | A kind of microwave ablation therapeutic equipment based on microwave power detection protection microwave melt needle | |
| CN107748522A (en) | A kind of ultra-short wave therapy apparatus | |
| CN100581498C (en) | 1064nm semiconductor laser therapeutic instrument | |
| CN105698228B (en) | A kind of solid state microwave furnace and implementation method | |
| CN108938081A (en) | N channel microwave ablation system | |
| CN103027708A (en) | Monitoring method and monitoring system for operating state of ultrasonic transducer | |
| CN105213174A (en) | A kind of microwave needle moxibustion instrument | |
| CN212343740U (en) | 108.48MHz/150kW solid state power source system | |
| CN111773557A (en) | Laser therapeutic instrument and therapeutic system thereof | |
| CN202223256U (en) | Monitoring device for working state of ultrasonic transducer | |
| CN111358550A (en) | Accurate microwave power control system of microwave therapeutic instrument | |
| CN201361109Y (en) | Microwave thermal therapy machine controlled by MCU (micro controller unit) | |
| CN209137767U (en) | A kind of microwave power source and therapeutic equipment | |
| CN109091760A (en) | A kind of microwave power source, therapeutic equipment and microwave signal generation method | |
| CN212234674U (en) | Microwave ablation therapeutic instrument | |
| CN203315560U (en) | High-power 2450MHz solid-state source microwave therapeutic instrument | |
| CN113288414B (en) | Adaptive broadband microwave tumor ablation instrument based on small signal scanning detection | |
| CN101766503A (en) | Microwave electrotome two-purpose therapeutic instrument | |
| CN201684299U (en) | Red light therapeutic instrument | |
| CN202876115U (en) | Infrared-photon treatment device capable of adjusting output peak value | |
| CN210728433U (en) | Radio frequency heating tumor thermotherapy system | |
| CN203119448U (en) | Radio-frequency power supply under-power protective circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20170317 |