CN109432603A - A kind of microwave therapy apparatus - Google Patents
A kind of microwave therapy apparatus Download PDFInfo
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- CN109432603A CN109432603A CN201811613309.2A CN201811613309A CN109432603A CN 109432603 A CN109432603 A CN 109432603A CN 201811613309 A CN201811613309 A CN 201811613309A CN 109432603 A CN109432603 A CN 109432603A
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- 238000002560 therapeutic procedure Methods 0.000 title claims abstract description 42
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000012806 monitoring device Methods 0.000 claims description 28
- 239000004065 semiconductor Substances 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 18
- 238000005457 optimization Methods 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 7
- 230000001225 therapeutic effect Effects 0.000 abstract description 24
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- 235000013399 edible fruits Nutrition 0.000 description 2
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- 208000006820 Arthralgia Diseases 0.000 description 1
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- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
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- 210000000170 cell membrane Anatomy 0.000 description 1
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- 238000002513 implantation Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/02—Radiation therapy using microwaves
- A61N5/022—Apparatus adapted for a specific treatment
- A61N5/025—Warming the body, e.g. hyperthermia treatment
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Abstract
The present invention relates to micro-wave therapeutic technical fields, disclose a kind of microwave therapy apparatus, which includes: signal source component, and signal source component includes frequency range multiple signal sources different from each other of generated microwave signal；Power amplifier components, power amplifier components include and signal source multiple power amplifier units correspondingly；Control switch component, control switch component include that multiple control switches, each control switch include an input terminal and two output ends correspondingly with power amplifier unit；Multiplefrequency mixer, the input terminal of multiplefrequency mixer are connect with an output end of each control switch；Emitter assemblies, emitter assemblies include and control switch multiple narrowband emitters and a wideband radiator corresponding with multiplefrequency mixer correspondingly.The microwave therapy apparatus may be implemented to carry out radiation therapy to the different parts of human body simultaneously and to the different depth radiation therapy at same position, effectively improve therapeutic effect, and using flexible, conveniently.
Description
Technical field
The present invention relates to micro-wave therapeutic technical field, in particular to a kind of microwave therapy apparatus.
Background technique
Micro-wave therapeutic disease is mainly realized by fuel factor, it is well known that tissue 70% is all by hydrone
It constitutes, damping action is generated to oscillation since there are magnetic resistance between polar molecule, thus consume microwave energy and heat, simultaneously because
Microwave has preferable penetrability for tissue, microwave energy can be penetrated skin and muscle by microwave radiation
Stop, is directly applied to the part treated, the increasing of blood vessel, capillary pressure and permeability of cell membrane can be caused
Add, so that local leucocyte and antibody concentration improve, accelerates local organization metabolism, to reach the treatments such as anti-inflammation detumescence effect
Fruit, especially therapeutic effect in terms of muscle, arthralgia are obvious.
So there is many instruments for being used for micro-wave therapeutic at present, wherein in microwave therapy apparatus in the prior art, microwave
Treatment use be by radiating antenna close to or implantation lesion, antenna at this time and load are near-field thermal radiation relationship, different frequency
The depth that is penetrated for tissue of microwave it is different, in actual therapeutic, different therapentic parts, therapeutic scheme are required
The microwave frequency wanted is also different, in certain therapeutic process, the microwave radiation of multiple frequencies is needed to reach the inside and outside effect taken into account
Fruit, and in traditional microwave therapy apparatus, when being treated to patient, human body different parts can not be carried out simultaneously radiation therapy or
The treatment of the complex scenario of different depth is carried out to same position.
Summary of the invention
The present invention provides a kind of microwave therapy apparatus, in the microwave therapy apparatus, it can produce the multiple of covering micro-wave therapeutic
The microwave signal of frequency range, and the microwave signal of each frequency range can be exported by the selectivity of each control switch, both can be by
Independent narrowband emitter is independently emitted, and can also be gone out together by a wideband radiator jointly with the microwave signal of multiple frequency range
It penetrates, may be implemented to carry out radiation therapy to the different parts of human body simultaneously and to the different depth radiation therapy at same position,
Make multiple therapentic parts while being treated, effectively improve therapeutic effect, and using flexible, conveniently.
In order to achieve the above objectives, the present invention the following technical schemes are provided:
A kind of microwave therapy apparatus, comprising:
Signal source component, the signal source component include that the frequency range of generated microwave signal is different from each other multiple
Signal source；
Power amplifier components, the power amplifier components include and the signal source multiple power amplifier units correspondingly, every a pair of phase
Between mutual corresponding power amplifier unit and signal source, the output end of the signal source is connect with the input terminal of the power amplifier unit；
Control switch component, the control switch component include opening with the one-to-one multiple controls of the power amplifier unit
It closes, each described control switch includes the output end an of input terminal and two alternative outputs, wherein every a pair of mutual
In corresponding control switch and power amplifier unit, the input terminal of the control switch is connect with the output end of the power amplifier unit；
Multiplefrequency mixer, the multiplefrequency mixer have input terminal and output end, wherein the input of the multiplefrequency mixer
End is connect with an output end of each control switch；
Emitter assemblies, the emitter assemblies include with the control switch correspondingly multiple narrowband emitters and
One wideband radiator corresponding with the multiplefrequency mixer, wherein the mutual corresponding narrowband emitter of every a pair and control are opened
Between pass, the input terminal of the narrowband emitter is connect with the another output of the control switch, the wideband radiator
Input terminal connect with the output end of the multiplefrequency mixer.
In above-mentioned microwave therapy apparatus, signal source component includes multiple signal sources, signal source, it can generates microwave signal
Microwave generator, in multiple signal sources, frequency range belonging to the microwave signal that each signal source generates is different each other, that is, every
It can produce the microwave signal of different frequency ranges between a signal source, then signal source component can produce in the micro- of multiple frequency ranges
Wave signal, that is to say, that signal source component can produce the microwave signal of multiple frequencies different from each other, need to illustrate
It is that the microwave signal that each signal source generates is to belong to the microwave signal for the frequency range applied in micro-wave therapeutic, wherein power amplifier group
Part includes the power amplifier unit being arranged in a one-to-one correspondence with each signal source, the corresponding signal source of every a pair and power amplifier unit it
Between, the output end of signal source and the input terminal of power amplifier unit connect, and so that microwave signal is transferred to power amplifier unit from signal source, control
Include in switch block and the one-to-one control switch of each power amplifier unit, wherein each control switch includes one defeated
The output end for entering end and two alternative outputs, for purposes of illustration only, it is defeated that an output end of each control switch is known as first
Another output is known as second output terminal by outlet, and in the mutual corresponding control switch of every a pair and power amplifier unit, control is opened
The input terminal of pass and the output end of power amplifier unit connect, then microwave signal can be transmitted to after power amplification in power amplifier unit
Control switch, and there are two output ends for control switch, the microwave signal after power amplification can there are two output selections, wherein
First output end of each control switch is connect with the input terminal of multiplefrequency mixer, the output end connection one of multiplefrequency mixer
A wideband radiator, the second output terminal of each control switch respectively correspond to a narrowband emitter, then, microwave signal transmission is extremely
After control switch, in the microwave signal of each control switch, can there are two output selection: one be enter multifrequency close
Road device is emitted from wideband radiator simultaneously together with the microwave signal of other frequency ranges；The other is individually entering corresponding narrowband
Radiator, itself is individually emitted from narrowband emitter, wherein narrowband emitter can radiate the microwave signal of designated frequency band, wide
The microwave signal of all frequency ranges needed for micro-wave therapeutic can be radiated with radiator.Microwave therapy apparatus in the present invention can produce
The microwave signal of multiple frequency ranges of raw covering micro-wave therapeutic, and the microwave signal of each frequency range can pass through each control switch
Selectivity output, both can be independently emitted by independent narrowband emitter, can also be with the microwave signal of multiple frequency range jointly by one
A wideband radiator is emitted together, may be implemented to carry out radiation therapy to the different parts of human body simultaneously and to same position
Different depth radiation therapy makes multiple therapentic parts while being treated, and effectively improves therapeutic effect, and using flexible, conveniently.
Optionally, the microwave therapy apparatus further includes and the signal source component, power amplifier components and control switch component
The monitoring device of connection.
Optionally, each described power amplifier unit include semiconductor power amplifier and with the semiconductor power amplifier
The observation circuit of connection.
Optionally, the semiconductor power amplifier be multilevel semiconductor power amplifier, the observation circuit include with
It the forward power detection circuit of multilevel semiconductor power amplifier connection and is connect with the forward power detection circuit
Backward power detection circuit.
Optionally, the forward power detection circuit includes the positive coupling connecting with the multilevel semiconductor power amplifier
Clutch and the first power detector being connect with the forward coupler；
The backward power detection circuit includes circulator and the second power detector for connecting with the circulator；
The monitoring device includes frequency optimization module, the frequency optimization module respectively with first power detector
It is connected with the second power detector signal.
Optionally, each described power amplifier unit further includes connecting with the semiconductor power amplifier and observation circuit
Temperature sensing circuit, the temperature sensing circuit are connect with the monitoring device.
Optionally, each described signal source includes voltage controlled oscillator and the locking phase that connect with the voltage controlled oscillator
Ring.
Optionally, the narrowband emitter is narrow-band radiated antenna, and the wideband radiator is broadband radiation antenna.
Optionally, the control switch is radio frequency gating switch or single-pole double-throw switch (SPDT).
Optionally, the microwave therapy apparatus further includes being electrically connected with the signal source component, power amplifier components and monitoring device
The power supply connect.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of microwave therapy apparatus provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of power amplifier unit provided in an embodiment of the present invention；
Icon: 1- signal source component；2- power amplifier components；3- control switch component；4- multiplefrequency mixer；5- radiator group
Part；6- monitoring device；7- power supply；11- signal source；21- power amplifier unit；31- control switch；51- narrowband emitter；The broadband 52-
Radiator；211- semiconductor power amplifier；212- forward power detection circuit；213- backward power detection circuit；2121- is just
To coupler；The first power detector of 2122-；2131- circulator；The second power detector of 2132-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to FIG. 1, a kind of microwave therapy apparatus provided in an embodiment of the present invention, comprising:
Signal source component 1, signal source component 1 include frequency range multiple letters different from each other of generated microwave signal
Number source 11；
Power amplifier components 2, power amplifier components 2 include that multiple power amplifier units 21, every a pair are mutual correspondingly with signal source 11
Between corresponding power amplifier unit 21 and signal source 11, the output end of signal source 11 is connect with the input terminal of power amplifier unit 21；
Control switch component 3, control switch component 3 include with the one-to-one multiple control switches 31 of power amplifier unit 21,
Each control switch 31 includes the output end of an input terminal and two alternative outputs, wherein every a pair of of reciprocal correspondence
Control switch 31 and power amplifier unit 21 in, the input terminal of control switch 31 is connect with the output end of power amplifier unit 21；
Multiplefrequency mixer 4, multiplefrequency mixer 4 have input terminal and output end, wherein the input terminal of multiplefrequency mixer 4 with
One output end of each control switch 31 connects；
Emitter assemblies 5, emitter assemblies 5 include and the one-to-one multiple narrowband emitters 51 and one of control switch 31
A wideband radiator 52 corresponding with multiplefrequency mixer 4, wherein the mutual corresponding narrowband emitter 51 of every a pair and control switch
Between 31, the input terminal of narrowband emitter 51 is connect with the another output of control switch 31, the input of wideband radiator 52
End is connect with the output end of multiplefrequency mixer 4.
In above-mentioned microwave therapy apparatus, signal source component 1 includes multiple signal sources 11, signal source 11, it can generates microwave
The microwave generator of signal, in multiple signal sources 11, frequency range belonging to the microwave signal that each signal source 11 generates is mutually not
It is identical, that is, to can produce the microwave signal of different frequency ranges between each signal source 11, then signal source 11 can produce in more
The microwave signal of a frequency range, that is to say, that signal source component 1 can produce the microwave letter of multiple frequencies different from each other
Number, it should be noted that the microwave signal that each signal source 11 generates is the microwave for belonging to the frequency range applied in micro-wave therapeutic
Signal, wherein power amplifier components 2 include the power amplifier unit 21 being arranged in a one-to-one correspondence with each signal source 11, and every a pair is corresponding
Signal source 11 and power amplifier unit 21 between, the output end of signal source 11 is connect with the input terminal of power amplifier unit 21, believes microwave
Number it is transferred to power amplifier unit 21 from signal source 11, includes in control switch component 3 and the control correspondingly of each power amplifier unit 21
Make switch 31, wherein each control switch 31 includes the alternative output ends exported of an input terminal and two, for convenient for
Illustrate, an output end of each control switch 31 be known as the first output end, another output is known as second output terminal,
In the mutual corresponding control switch 31 of every a pair and power amplifier unit 21, the output of the input terminal and power amplifier unit 21 of control switch 31
End connection, then microwave signal can be transmitted to control switch 31, and control switch 31 in power amplifier unit 21 after power amplification
There are two output end, after power amplification microwave signal can there are two output selections, wherein the of each control switch 31
One output end is all connect with the input terminal of multiplefrequency mixer 4, and the output end of multiplefrequency mixer 4 connects a wideband radiator 52,
The second output terminal of each control switch 31 respectively corresponds to a narrowband emitter 51, then, microwave signal transmission to control switch
After 31, in the microwave signal of each control switch 31, can there are two output selection: one be enter multiplefrequency mixer
4, it is emitted simultaneously from wideband radiator 52 together with the microwave signal of other frequency ranges；The other is individually entering corresponding narrowband spoke
Emitter 51, itself is individually emitted from narrowband emitter 51, wherein narrowband emitter 51 can radiate the microwave letter of designated frequency band
Number, wideband radiator 52 can radiate the microwave signal of all frequency ranges needed for micro-wave therapeutic.By above-mentioned, the embodiment of the present invention
In microwave therapy apparatus can produce the microwave signals of multiple different frequencies each other, can cover what micro-wave therapeutic used
Multiple frequency ranges, there are two outgoing selections for the microwave signal that each signal source 11 generates, can be with partner treatment scheme simultaneously to people
The different parts of body and the different depth at same position is treated, below by way of including five letters with signal source component 1
It is illustrated for number source 11:
For example, signal source component 1 includes five signal sources 11, wherein the frequency for the microwave signal that each signal source 11 generates
Section respectively is f1, f2, f3, f4, f5, then includes five power amplifier units 21 in power amplifier components 2, and each power amplifier unit 21 is distinguished
A signal source 11 is corresponded to, includes five control switches 31, the corresponding power amplifier of each control switch 31 in control switch component 3
First output end of unit 21, each control switch 31 is connect with multiplefrequency mixer 4, and multiplefrequency mixer 4 connects a broadband
Radiator 52, the second output terminal of each control switch 31 respectively connect a narrowband emitter 51, that is, there are five narrow-band radiateds
Device 51, wherein the microwave signal of above-mentioned five kinds of frequency ranges may be constructed a variety of output schemes when control switch 31 selects to export,
Wherein, for the microwave signal of f1, f2 frequency range, the first output end that can choose in corresponding control switch 31 is exported simultaneously
Into corresponding narrowband emitter 51, the microwave signal of f1, f2 frequency range is respectively independently emitted, can be to human body different parts
Radiation therapy is carried out, the second output terminal in corresponding control switch 31 is selected for the microwave signal of f3, f4, f5 frequency range
Output, i.e., the microwave signal of f3, f4, f5 frequency range enters multiplefrequency mixer 4 jointly, while being projected by wideband radiator, then can be with
The radiation therapy of different depth is carried out to the same position of human body, and for the defeated of the microwave signal of f1, f2, f3, f4, f5 frequency range
It selects out, can also there is other combining forms, for example, the microwave signal of f1, f3, f4 frequency range is corresponding narrow by what is answered respectively
The independent outgoing of band radiator 51, the microwave signal of f2 and f5 frequency range enter multiplefrequency mixer 4 by wideband radiator 52 together jointly
It projects, in use, each microwave signal can be changed according to the selection shape of two output ends to control switch 31
Output state is made in therapeutic process with changing the combining forms of all microwave signals, and microwave therapy apparatus uses more flexible, side
Just, it should be noted that there are many combinations between the microwave signal of different frequency range, numerous to list herein.
It should be noted that the signal source 11 in signal source component 1 is also possible to 4,6,7,8 or other numbers
Amount, the present embodiment, which is not done, to be limited to, and can be specifically arranged according to different therapeutic scheme demands.
Therefore, in above-mentioned microwave therapy apparatus, it can produce the microwave signal of multiple frequency ranges of covering micro-wave therapeutic, and each
The microwave signal of frequency range can be exported by the selectivity of each control switch 31, both can be by independent narrowband emitter 51 solely
Vertical outgoing, can also be emitted together by a wideband radiator 52, it is right simultaneously to may be implemented jointly with the microwave signal of multiple frequency range
The different parts of human body carry out radiation therapy and the different depth radiation therapy to same position, make multiple therapentic parts simultaneously
It is treated, effectively improves therapeutic effect, and using flexible, conveniently.
Wherein, microwave therapy apparatus works in which frequency range or which frequency range, is determined by specifically treating setting,
It is theoretical from microwave technology it is recognised that the microwave signal of the different frequencies depth that penetrates medium is different, it is general with penetrating depth
It spends to indicate medium to the size of the damping capacity of microwave energy, penetration depth (D) is defined as microwave power and decays from dielectric surface
To face value 1/e when distance.Penetration depth can be usedIt calculates, wherein λ0For the wave in vacuum
Long, ε ' is the relative dielectric constant of medium, and δ is the loss angle tangent of medium.By penetration depth calculation formula it is found that impinging microwave
Wavelength is longer, and medium relative dielectric constant is smaller, and loss is smaller, and penetration depth is deeper, and tissue is that have musculature, fat
The Various Tissues such as tissue, bone, fascia composition, parameter are complex.Following table 1 has been set out common several according to experimental data
Penetration depth of the microwave signal of a frequency in muscle.
Penetration depth of the 1 different frequency microwave signal of table in muscle
| Microwave signal frequency (MHz) | 433 | 915 | 2450 |
| Penetration depth (cm) in muscle | 4.57 | 2.44 | 1.07 |
As known from Table 1, it is heated with the microwave signal of different frequency, penetration depth is also different, and wavelength is longer, penetrates
Depth is deeper, this is also identical with theoretic analysis result.Similarly, under identical frequency, different tissues is corresponding
Penetration depth is also different.Microwave therapy apparatus in the present embodiment can be emitted the microwave signal of multiple frequency range, can cooperate more
Kind therapeutic scheme, it is easy to use.
Specifically, microwave therapy apparatus further includes connecting with signal source component 1, power amplifier components 2 and control switch component 3
Monitoring device 6.Monitoring device 6 controls each signal source 11 in signal source component 1, can control each signal source 11
Microwave signal generation, the microwave signal that control generates the frequency range needed, monitoring device 6 and power amplifier are carried out according to therapeutic scheme
Component 2 connects, and can control each power amplifier unit 21 in power amplifier components 2, controls power amplifier unit 21 to corresponding microwave
The power amplification situation of signal, monitoring device 6 are connect with control switch component 3, and monitoring device 6 can be to each control switch
The connected relation of 31 input terminal and two output ends, that is, can control microwave signal in two output ends of control switch 31
In outbound course, wherein monitoring device 6 be microprocessor, can with setting program to signal source component 1, power amplifier components 2 and
Control switch component 3 is controlled, more intelligent, using more convenient, flexible.
In above-mentioned microwave therapy apparatus, each signal source 11 includes voltage controlled oscillator and the lock connecting with voltage controlled oscillator
Xiang Huan.Wherein, the voltage controlled oscillator in signal source 11 and the phaselocked loop connecting with voltage controlled oscillator can be discrete setting shape
At circuit, voltage controlled oscillator and the phaselocked loop connecting with voltage controlled oscillator can also be integrated to form chip, this
Embodiment, which is not done, limits to.
In above-mentioned microwave therapy apparatus, each power amplifier unit 21 include semiconductor power amplifier 211 and with semiconductor function
The observation circuit that rate amplifier 211 connects.Observation circuit is connect with 6 signal of monitoring device, and can will be detected in observation circuit
To data be transferred to monitoring device 6, monitoring device 6 can control according to the data detected in observation circuit to other assemblies
System is adjusted.And power amplifier unit 21 amplifies microwave signal power using semiconductor power amplifier 211, by semiconductor
Solid state technology is combined with treatment use, substitutes magnetron in the prior art with Solid Source, has stable output power, system
The advantage of safe, compact-sized, highly integrated control.
Specifically, semiconductor power amplifier 211 is multilevel semiconductor power amplifier 211, can be by corresponding signal
The microwave signal that source 11 generates is amplified step by step, and observation circuit includes the positive function connecting with multilevel semiconductor power amplifier 211
Rate detection circuit 212 and the backward power detection circuit 213 connecting with forward power detection circuit 212, i.e. monitoring device 6 can be with
The control of other assemblies is adjusted according to the power data detected in observation circuit.
More specifically, forward power detection circuit 212 includes the positive coupling connecting with multilevel semiconductor power amplifier 211
Clutch 2121 and the first power detector 2122 being connect with forward coupler 2121；Backward power detection circuit 213 includes ring
Shape device 2131 and the second power detector 2132 being connect with circulator 2131；Monitoring device 6 includes frequency optimization module, frequency
Optimization module is connect with the first power detector 2122 and 2132 signal of the second power detector respectively, and frequency optimization module is used for
Obtain frequency and the radiation most matched microwave signal in position.
Wherein, as shown in Fig. 2, being shown as a kind of structural schematic diagram of power amplifier unit 21 provided in this embodiment in Fig. 2,
Each group of corresponding signal source 11, power amplifier unit 21, in control switch 31, frequency optimization module obtains microwave from power amplifier unit 21
The power data of signal, wherein the specific algorithm of frequency optimization module are as follows: the power coupled from forward power coupler passes through function
Forward power detecting circuit V-DF can be obtained after rate detector, pass through function by the backward power that circulator 2131 couples
Backward power detecting circuit V-DR, forward power detecting circuit V-DF and backward power inspection can be obtained after rate detector
Wave voltage V-DR will be transported to the frequency optimization module of monitoring device 6, after voltage sample and calculating it is available just
To power PfAnd backward power Pr, unit dBm, then can equally calculate the output under 21 working condition of power amplifier unit
Return loss RL=Pr-Pf, unit is dB (RL unit is dB), and RL is smaller, and the microwave energy reflective of power amplifier output is smaller, load
(wherein, load is collectively formed in radiator and the tissue radiated) absorbs the microwave that energy is higher, and RL is higher, and expression power amplifier exports
Energy is bigger, then the energy of load absorption is lower, in practical applications, it is intended that the microwave energy of microwave therapy apparatus can
The tissue resorption preferably radiated reaches better therapeutic effect.Since radiator has organized the formation of one with what is radiated
A load, in practical situations, load matched state corresponding to the microwave signal of different frequency are all different, so we
11 tranmitting frequency of microwave signal source be can change to optimize the output return loss RL of semiconductor power amplifier unit 21, reach optimal
Export matching status, improve effective transmission power, specific algorithm such as: a frequency range is chosen, such as fa~fb frequency range, the corresponding frequency
Microwave signal is projected in the work of signal source 11 of section, wherein the frequency range initial frequency is fa, and termination frequency is fb, can be set one
A frequency sweep stepping is 1MHz, can be fa by 11 set of frequency of signal source, open microwave therapy apparatus, at this moment available power amplifier
Then 11 set of frequency of signal source is fa+1MHz by return loss RL1 detected by unit 21, same available frequency
The corresponding return loss RL2 of rate constantly changes the frequency that signal source 11 generates microwave signal, available institute according to 1MHz stepping
There is the corresponding return loss of frequency point, the frequency optimization module in monitoring device may determine that minimum return loss RLmin institute is right
The frequency fq answered, and be the current optimal treatment frequency used by the set of frequency, then frequency optimization module acquisition is most preferably controlled
After treating frequency, monitoring device 6 controls the microwave signal that corresponding signal source 11 is emitted corresponding optimal treatment frequency, so that by spoke
The tissue penetrated obtains optimal therapeutic effect.
Specifically, each power amplifier unit 21 further includes the temperature connecting with semiconductor power amplifier 211 and observation circuit
Detection circuit is spent, temperature sensing circuit is connect with monitoring device 6, includes temperature sensor, temperature sensing in temperature sensing circuit
Device can detecte the temperature of power amplifier unit 21 and temperature data be sent to monitoring device 6, and monitoring device 6 can be according to temperature number
It is judged that the temperature regime of power amplifier unit 21, and monitoring device 6 may also include the alarm unit for sounding an alarm, when monitoring fills
When setting 6 and judging that power amplifier unit 21 has abnormal according to temperature data, alarm unit is alarmed, and the dimension of microwave therapy apparatus is conducive to
Shield.
Specifically, narrowband emitter 51 is narrow-band radiated antenna, and wideband radiator 52 is broadband radiation antenna.
Specifically, control switch 31 is radio frequency gating switch or single-pole double-throw switch (SPDT).
Specifically, microwave therapy apparatus further includes the electricity being electrically connected with signal source component 1, power amplifier components 2 and monitoring device 6
Source 7, conventional use of 220V/50Hz can be filtered by power supply 7 to be converted with voltage, obtains each component institute in microwave therapy apparatus
The various voltages needed.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
Bright spirit and scope.In this way, if these modifications and changes of the present invention belongs to the claims in the present invention and its equivalent technologies
Within the scope of, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of microwave therapy apparatus characterized by comprising
Signal source component, the signal source component include frequency range multiple signals different from each other of generated microwave signal
Source；
Power amplifier components, the power amplifier components include that multiple power amplifier units, every a pair are mutually right correspondingly with the signal source
Between the power amplifier unit answered and signal source, the output end of the signal source is connect with the input terminal of the power amplifier unit；
Control switch component, the control switch component include with the power amplifier unit multiple control switches correspondingly, often
One control switch includes the output end an of input terminal and two alternative outputs, wherein every a pair of of reciprocal correspondence
Control switch and power amplifier unit in, the input terminal of the control switch is connect with the output end of the power amplifier unit；
Multiplefrequency mixer, the multiplefrequency mixer have input terminal and output end, wherein the input terminal of the multiplefrequency mixer with
One output end of each control switch connects；
Emitter assemblies, the emitter assemblies include and the control switch multiple narrowband emitters and one correspondingly
Wideband radiator corresponding with the multiplefrequency mixer, wherein the mutual corresponding narrowband emitter of every a pair and control switch it
Between, the input terminal of the narrowband emitter is connect with the another output of the control switch, the wideband radiator it is defeated
Enter end to connect with the output end of the multiplefrequency mixer.
2. microwave therapy apparatus according to claim 1, which is characterized in that further include and the signal source component, power amplifier group
Part and the monitoring device of control switch component connection.
3. microwave therapy apparatus according to claim 2, which is characterized in that each described power amplifier unit includes semiconductor function
Rate amplifier and the observation circuit being connect with the semiconductor power amplifier.
4. microwave therapy apparatus according to claim 3, which is characterized in that the semiconductor power amplifier is that multistage is partly led
Body power amplifier, the observation circuit include the forward power detection circuit connecting with the multilevel semiconductor power amplifier
The backward power detection circuit being connect with the forward power detection circuit.
5. microwave therapy apparatus according to claim 4, which is characterized in that the forward power detection circuit include with it is described
The forward coupler of multilevel semiconductor power amplifier connection and the first power detector being connect with the forward coupler；
The backward power detection circuit includes circulator and the second power detector for connecting with the circulator；
The monitoring device includes frequency optimization module, the frequency optimization module respectively with first power detector and
The connection of two power detector signals.
6. microwave therapy apparatus according to claim 3, which is characterized in that each described power amplifier unit further include with it is described
The temperature sensing circuit that semiconductor power amplifier is connected with observation circuit, the temperature sensing circuit and the monitoring device connect
It connects.
7. microwave therapy apparatus according to claim 1, which is characterized in that each described signal source includes voltage controlled oscillator
And the phaselocked loop being connect with the voltage controlled oscillator.
8. microwave therapy apparatus according to claim 1, which is characterized in that the narrowband emitter is narrow-band radiated antenna,
The wideband radiator is broadband radiation antenna.
9. microwave therapy apparatus according to claim 1 or 2, which is characterized in that the control switch is radio frequency gating switch
Or single-pole double-throw switch (SPDT).
10. according to the described in any item microwave therapy apparatus of claim 2-8, which is characterized in that further include and the signal source group
The power supply of part, power amplifier components and monitoring device electrical connection.
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| CN201811613309.2A CN109432603A (en) | 2018-12-27 | 2018-12-27 | A kind of microwave therapy apparatus |
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| CN111010760A (en) * | 2019-12-12 | 2020-04-14 | 深圳摩极科技有限公司 | Design of low-voltage miniaturized semiconductor microwave physiotherapy instrument |
| CN111298301A (en) * | 2020-03-27 | 2020-06-19 | 河南翔宇医疗设备股份有限公司 | Microwave solid-state power source circuit and microwave therapeutic instrument |
| CN111603684A (en) * | 2020-05-13 | 2020-09-01 | 尚圣杰 | Microwave radio frequency cooperative rotation global irradiation thermotherapy system |
| WO2021104311A1 (en) * | 2019-11-28 | 2021-06-03 | 华为技术有限公司 | Power amplifier combining device and power amplifier circuit |
| CN113058161A (en) * | 2021-04-29 | 2021-07-02 | 广西善缘健康管理有限公司 | Microwave therapeutic instrument |
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