CN204428631U - A kind of microwave energy transporter utilizing phased array antenna - Google Patents

Abstract

The utility model discloses a kind of microwave energy transporter utilizing phased array antenna, comprising: control part; Be connected respectively to microwave energy transfer control portion and the thermometric portion of this control part; Microwave source, described microwave energy transfer control portion and temperature measurement fraction are not connected to this microwave source; And phased array antenna portion and zone plate emission part, be connected respectively to described microwave source, and this phased array antenna portion is also connected to thermometric portion.Utilize phased array microwave energy transfer arrangement of the present utility model, with the heat protocol of the best, microwave energy can be transmitted to this specific objective, real time temperature measurement is carried out to this specific objective simultaneously.

Description

A kind of microwave energy transporter utilizing phased array antenna

This utility model application is the divisional application of the Chinese utility model application " a kind of microwave energy transporter utilizing phased array antenna " (application number 201220491237.0) of JIUYUE in 2012 submission on the 25th.

Technical field

This utility model relates to a kind of microwave energy transporter utilizing phased array antenna to carry out microwave energy transmission.This device can be used in the fields such as the transmission of microwave energy orientation, microwave heat therapeutic and real time temperature measurement.

Background technology

Microwave is utilized to heat to treat existing application to human body or biological tissue.In traditional technique for hyperthermia, carrying out hyperthermia treatment epidermal tissue may be caused to burn to deep tissues, therefore, how to heat the tissue of deep layer and not injure epidermal tissue or its hetero-organization, is a challenging problem.Chinese patent ZL90106492.0 discloses a kind of microkymotherapy and device, it is the rule according to Microwave Power Density, on the basis of existing proximity transthermia, the actinal surface of microwave radiometer is left human body by the distance of diathermanous position epidermis 15-70cm, simultaneously, before microwave radiometer actinal surface, add a focusing arrangement, and strengthen the output of microwave power supply, and continuous power output.The method and device can solve that depth of penetration heating is shallow, epidermis is easily burnt, heat the problems such as uneven preferably.But this device can not be monitored in real time to the situation of biological tissue's heating, also cannot regulate the depth of focus, incident angle and transmitting power, therefore can not reach and effectively heat to treat effect.In addition, existing heating microwave source mostly adopts unifrequency to heat, and target tissue cells (such as, tumor cell) easily adapts to this frequency over time, thus does not reach the therapeutic effect of effective deactivation.

Secondly, in recent years, the application of non-thermal effect has caused increasing concern.And market rarely has the equipment that simultaneously can carry out thermotherapy and non-thermal therapeutical.Biological tissue is after accepting microwave low-intensity, long-time radiation or the radiation of high intensity pulses formula, though body temperature does not occur obviously to rise but can produce a series of biological effect to be yet referred to as non-thermal effect, the radiant power needed for non-thermal effect is significantly less than the power level needed for heat effect.From physics, biomedical two angles, the mechanism of action of microwave non-thermal effect roughly comprises that transmembrane ion cyclotron resonance is theoretical, particle is theoretical etc. to be concerned with electric oscillation theory, cell electronic signal transduction of the penetration theory of film, biosystem.The effect of microwave pulse cell membrane can change transmembrane potential makes it that the reversible of cell membrane or irreversibility perforation occur, make to be subject at ordinary times cell membrane to limit the cancer therapy drug entered and enter in a large number in cell, reduce the consumption of chemotherapeutics, reduce the toxic and side effects of cancer therapy drug to human body.Microwave can cut off DNA, affects the content of second message,second messenger in cell, affect mitochondrial function cell death inducing.. microwave radiation carninomatosis stove can stimulate patient's immunomodulating system, strengthens the cellular immunity of NK cell, T lymphocyte and macrophage.

In addition, existing microwave thermometry be generally utilize sensor to carry out have loss measurement, such as utilize semiconductor thermistor as the temperature measuring equipment of temperature probe, it can not carry out effective deep layer thermometric, skin temperature can only be measured, and this temp measuring method can cause damage to human body, patient will bear larger misery, easily makes wound infection.Chinese patent CN 100475288C discloses a kind of monopole phased array thermotherapy applicator, and this device utilizes the temperature sensor being positioned at body surface to measure patient body-surface temperature.But this temperature measuring equipment can not carry out effective thermometric to deep tissues, does not also have the function of real time temperature measurement, can not effectively monitor heating-up temperature.

Utility model content

In view of above-mentioned deficiency of the prior art, this utility model is intended to propose a kind of phased array microwave energy transfer arrangement, can realize carrying out the transmission of targeting multifrequency energy to destination organization, and there is real time temperature measurement and the function monitored in real time, thus more effective energy transmission effect can be reached to specific objective tissue.

According to first aspect of the present utility model, propose a kind of microwave energy transporter utilizing phased array antenna, it is characterized in that, comprising: control part; Be connected respectively to microwave energy transfer control portion and the thermometric portion of this control part; Microwave source, described microwave energy transfer control portion and temperature measurement fraction are not connected to this microwave source; And phased array antenna portion and zone plate emission part, be connected respectively to described microwave source, and this phased array antenna portion is also connected to described thermometric portion; Wherein, described microwave energy transfer control portion, according to the heat protocol determined by described control part, determines micro-wave frequency to be launched, power and waveform; Described thermometric portion implements thermometric to specific objective, and temperature-measuring results is sent to described control part; Described microwave source, according to be launched micro-wave frequency, power and the waveform determined by described microwave energy transfer control portion, generates the microwave to be launched with this frequency, power and waveform; Described phased array antenna portion and/or described zone plate emission part are under the control in described microwave energy transfer control portion, according to the spatial positional information of described specific objective, launch the microwave to be launched with described frequency, power, waveform generated by described microwave source to this specific objective.

Utilize phased array microwave energy transfer arrangement of the present utility model, will can be irradiated to this specific objective while there is the microwave targeting of preferred power, frequency and waveform.Meanwhile, real time temperature measurement can be carried out to this specific objective, ensure that the safety in the process transmitted at microwave energy.

Accompanying drawing explanation

Fig. 1 is the structured flowchart that phased array microwave energy transfer arrangement of the present utility model is shown;

Fig. 2 illustrates the structured flowchart with the phased array microwave energy transfer arrangement of resonant frequency locating function of the present utility model;

Fig. 3 is the schematic diagram of the principle that zone plate emission part is shown;

Fig. 4 is the flow chart of the operational instances that phased array microwave energy transfer arrangement of the present utility model is shown;

Fig. 5 is the flow chart of another operational instances that phased array microwave energy transfer arrangement of the present utility model is shown; And

Fig. 6 is the flow chart of the another operational instances that phased array microwave energy transfer arrangement of the present utility model is shown.

Detailed description of the invention

Below, phased array microwave energy transfer arrangement of the present utility model is specifically described with reference to the accompanying drawings.

As shown in Figure 1, phased array microwave energy transfer arrangement 10 of the present utility model comprises the microwave energy transfer control portion 13 and thermometric portion 14 that are connected with control part 11 respectively.This microwave energy transfer control portion 13 and thermometric portion 14 are connected to microwave source 16 jointly, and this microwave source 16 is directly connected to phased array antenna portion 17 and zone plate emission part 8.Phased array antenna portion 17 is also connected with thermometric portion 14.In addition, control part 11 also shows with one and storage part 15 is connected.

The positional information of this specific objective that microwave energy transfer control portion 13 determines with reference to existing Scan orientation equipment (such as, ultrasonic device, nuclear magnetic resonance equipment etc.), utilizes phased array antenna or zone plate, carries out the orientation transmission of microwave energy.Thermometric portion 14 adopts conventional infrared temperature-test technology, or microwave thermometry, carries out real time temperature measurement, thus obtain the Three Dimensional Thermal scattergram of this specific objective to described specific objective.When adopting microwave thermometry, this thermometric portion 14 utilizes specific absorption rate and the directly proportional relation of temperature, and specific objective is converted to temperature for the specific absorption rate of microwave energy.

Micro-wave generating apparatus that microwave source 16 is a kind of frequency-adjustable, output waveform is adjustable, can be used for the microwave transmission in microwave energy transfer control portion 13.The phased array antenna portion 17 be connected with microwave source 16 and zone plate emission part 18 are for launching the microwave meeting focus direction, watt level, waveform shape etc. and require to specific objective.

The each module operation of control part 11 to phased array microwave energy transfer arrangement 10 of the present utility model controls.In addition, display and storage part 15 for showing the results such as thermometric to graphically, and store various operation and measurement data.

Below, by respectively to structure and the operation of above-mentioned each module of phased array microwave energy transfer arrangement 10 of the present utility model, and integrated operation is described.

Microwave source

As shown in Figure 1, and when phased array microwave energy transfer arrangement 10 of the present utility model carries out microwave energy transfer operation or microwave thermometric operates or these two operations carry out simultaneously, then make described microwave source 16 generate microwave pulse or the continuous wave with expected frequency, pulse width and power.This microwave source 16 selects one can the relay of frequency sweep microwave source to cover with semiconductor-on-insulator, makes microwave frequency range reach K-band from pattern-band, namely from 230MHz-26.5GHz.Output can be amplified to 100 watts of (100W) levels by milliwatt (mW) level through amplifier.The demand that aforesaid microwave energy transfer control portion 13 transmits according to microwave energy, controls the tranmitting frequency of this microwave source 16, microwave waveform and output etc.

The microwave generated by microwave source 16, will be sent to phased array antenna portion 17 or zone plate emission part 18 (will describe in detail hereinafter) by waveguide or microwave emitter etc.When main for the purpose of thermotherapy, by the focusing and the transmitting that utilize zone plate emission part 18 to carry out microwave, and when main for the purpose of non-thermal effect, by the transmitting utilizing phased array antenna portion 17 to carry out microwave.

Phased array antenna portion

Phased array antenna portion 17 is connected to aforementioned microwave source 16 and thermometric portion 14.This phased array antenna portion 17 for the electromagnetic wave to the specific focus direction of specific objective targeting eradiation, frequency, power, waveform, and receives the echo of electromagnetic wave after specific objective (such as, in the operation of microwave thermometric).

Phased array antenna controls the current feed phase of each radiating element in array antenna by the phase shifter, thus change the antenna of antenna pattern shape.Phased array antenna portion 17 of the present utility model can be configured to the structure in single district, also can be configured to the structure comprising multiple subregion.Such as, phased array antenna portion 17 can be configured to comprise: A type rectangle one side array antenna, and it is configured to the transmitting/receiving assembly of more than 128, and arrangement mode is (8*8) * n group; Type B rectangle one side array antenna, it is configured to the transmitting/receiving assembly of less than 128, and arrangement mode is (4*4) * n group; C type arch one side array antenna, it is configured to the transmitting/receiving assembly of more than 128.

The compound mode of above-mentioned one side array antenna can be, an A type rectangle one side array antenna is arranged in pairs or groups other optional compound modes such as more than one Type B rectangle one side array antenna, and various antenna is switchable type.Such as, a kind of one side array antenna is furnished with the coplanar array antenna that AA, AB, AC more than tri-have the adaptation different frequency of 128 and above wave beam, and be furnished with the coplanar array antenna that switchable BA, BB, BC more than tri-have 128 and following wave beam, wherein each beam phase can be relevant and irrelevant.

By such configuration, phased array antenna portion 17 of the present utility model can realize multizone technique effect controlled respectively.Such as, can only select the subregion of opening phased array antenna to operate, and remainder does not work; Or, the zones of different of phased array antenna can be controlled, come to different objective emission microwaves with different frequencies, power, waveform.

Zone plate emission part

Except using above-mentioned phased array antenna portion 17 to except specific objective launched microwave, phased array microwave energy transfer arrangement 10 of the present utility model can also be focused on by zone plate emission part 18 pairs of microwaves and be launched.This zone plate emission part 18 is connected to aforesaid microwave source 16, for being focused on by the controlled micro waves from this microwave source 16 and being emitted to specific objective.

Described zone plate emission part 18 utilizes the diffraction characteristic of ripple to carry out coherent superposition to wave beam, reaches and carry out focused radiation to targeting target.For the microwave of different frequency, zone plate emission part 18 of the present utility model includes in fact multiple zone plate, and each zone plate is for the microwave of a characteristic frequency.

The principle of zone plate is as shown in Figure 3:

With focus point P ₀centered by, with r ₁, r ₂r _nfor radius makes a series of sphere, wherein,

$r_1=z_1+\frac{\mathrm{\λ}}{2}$

$r_2=z_2+\frac{2\mathrm{\λ}}{2}$

$r_N=z_1+\frac{\mathrm{N\λ}}{2}$

A zone plate jth wavestrip outer edge radius is:

${\mathrm{\ρ}}_j=\sqrt{j{z}_1\mathrm{\λ}}$

Wherein z ₁for focal length, in order to overcome the larger restriction of microwave band zone plate size (∝ λ), technically can adopting the methods such as mechanical arm, reaching by reducing focal length the object reducing zone plate size.

According to the principle of stacking of ripple, P ₀point wave field strength is the intensity of wave sum that each endless belt produces at this point:

$E=\left|{\tilde{E}}_1\right|-\left|{\tilde{E}}_2\right|+\left|{\tilde{E}}_3\right|-\left|{\tilde{E}}_4\right|+...-{(-1)}^N\left|{\tilde{E}}_N\right|$

When N → ∞ (being equivalent to the unobstructed situation of ripple),

$\tilde{E}={\tilde{E}}_1/2$

Above-mentioned principle is utilized to make special ripple door screen: even (very) number wavestrip is hindered entirely, and strange (idol) number wavestrip is full unblocked, and each logical band of light complex amplitude, by cophase stacking, presents pure constructive interference, P ₀amplitude and ripple can greatly increase by force.Such as one opens and puts the 1st, 3,5 ..., the zone plate of ten odd bands such as 19 grades, if unobstructed time P ₀the wave-amplitude of point is can determine that the amplitude of prime focus is by half-wave belt theory

$\left|\tilde{E}\right|=\left|{\tilde{E}}_1\right|+\left|{\tilde{E}}_3\right|+...+\left|{\tilde{E}}_{19}\right|\≈10\left|{\tilde{E}}_1\right|=20\left|{\tilde{E}}_{\∞}\right|$

Intensity of wave is

$I\≈{\left(20{\tilde{E}}_{\∞}\right)}^2=400I_{\∞}$

Namely ripple is by force 400 times of unobstructed situation.

By this zone plate emission part 18, the controlled micro waves from microwave source 16 can be focused to the focal dimension of expectation, thus specific objective is irradiated.

Microwave energy transfer control portion

Microwave energy transfer control portion 13 of the present utility model is connected to aforementioned microwave source 16 and control part 11, for under the control of control part 11, instruction also controls microwave source 16 and sends the microwave with suitable frequency, power, waveform, thus according to existing Scan orientation equipment (such as, ultrasonic device, nuclear magnetic resonance equipment etc.) space position parameter of specific objective determined, by aforementioned waves strap emission part 18 or phased array antenna portion 17 to this specific objective launched microwave, transmit microwave energy.

Microwave to the feature that biological tissue acts on is: along with the rising of frequency, the depth shallower of heating, and along with the reduction of frequency, the degree of depth of heating deepens.

In addition, according to a preferred embodiment, this microwave energy transfer control portion 13 instruction microwave source 16 generates to be had by the microwave of the resonant frequency of the determined described specific objective of traditional Scan orientation device.

Thermometric portion

Thermometric portion 14 of the present utility model is connected to control part 11, microwave source 16 and phased array antenna portion 17, for measuring the temperature of specific objective with lossless manner.

As an example, this thermometric portion 14 also can be infrared thermometry portion.Infrared thermometry portion is suitable for the real time temperature figure generating Qian Biao biological tissue (such as, human body skin).

Or, this thermometric portion 14 also can be realized by the mode of microwave thermometric, by calculating specific absorption rate, then the power conversion absorbed by specific objective (organism, in vitro tissue etc.) is actual temperature value, can obtain the temperature of specific objective different tissues.

The electromagnetism general power P that biological tissue absorbs _atwith the gross mass m of biosystem _tratio (unit mass absorb power) be the specific absorption rate of organism:

${\mathrm{SAR}}_a=\frac{P_{\mathrm{at}}}{m_t}(W/\mathrm{kg})$ (formula 8)

Because energy is directly proportional to temperature, that is:

W ∝ kT (formula 9)

Wherein k is Boltzmann constant.

And the actual microwave energy being exactly organism unit mass (Δ m) and absorbing in the unit interval (Δ t) of the specific absorption rate of organism, that is:

W=SAR* Δ t* Δ m (formula 10)

In conjunction with above-mentioned formula 9 and formula 10, can obtain:

SAR* Δ t* Δ m ∝ k*T (formula 11)

In conjunction with above formula 11 and formula 8, can obtain:

P/m* Δ t* Δ m ∝ k*T (formula 12)

For identical bio-tissue (that is, m is identical), irradiate different electromagnetic power P1 and P0, the temperature T1 that this bio-tissue can be caused different and T0; According to above formula (12), P1, P0, T1 and T0 meet following formula:

P1/P0=T1/T0 (formula 13)

When described specific objective is tissue, by standardized human body's mode input one absorbed power P0, the temperature T0 of this tissue can be obtained; Then, using this P0 and T0 as reference value, according to above formula (11), the temperature T1 after this tissue absorbs microwave energy P1 (generate microwave by power transfer microwave source 162, and launched by phased array antenna portion 17) can be calculated.

About the energy P1 that tissue absorbs, when using phased array antenna portion 17 to carry out Microwave emission, can draw (namely simply by comparing " energy that phased array antenna portion 17 launches " and " backward energy that this phased array antenna portion 17 receives ", therebetween difference), and the SAR that process and standardized human body's model finite difference calculus draw carries out revising and obtains.And when using zone plate emission part 18 to carry out Microwave emission, the backward energy be reflected back from specific objective (target body tissue) can be detected by phased array antenna portion 17, and draw (namely simply by comparing " energy that zone plate emission part 18 is launched " and " backward energy that this phased array antenna portion 17 receives ", therebetween difference), and the SAR that process and standardized human body's model finite difference calculus calculate carries out revising and obtains.

It should be noted that the thermometric operation in thermometric portion 14 carries out in real time along with the microwave energy transmission under the control of microwave energy transfer control portion 13.Such as, when phased array microwave energy transfer arrangement 10 of the present utility model carries out microwave heating to specific objective, the temperature of this specific objective must be measured in real time, to guarantee that temperature can not become too high.

Control part

Control part 11 of the present utility model controls the integrated operation of phased array microwave energy transfer arrangement 10 of the present utility model.Idiographic flow, will be described below.

Display and storage part

Display of the present utility model and storage part 15 are for the form of image conversion, and the real time temperature image measured by thermometric portion 14 shows.In addition, this display and storage part 15 also store every measurement data, control data etc. in microwave energy transfer control portion 13 and thermometric portion 14.

Below, be described to the preferred embodiment of phased array microwave energy transfer arrangement 10 of the present utility model and operation thereof.

Example 1

The operating procedure of this example can be roughly divided into: initialize, heat protocol is determined, Microwave emission parameter is determined, Microwave emission, temperature monitoring and judgement, the judgement of thermotherapy/non-thermotherapy time and the step such as control, end.

Below, with phased array microwave energy transfer arrangement 10 of the present utility model for being heated to be example to the specific objective of organism, the operational instances 1 of phased array microwave energy transfer arrangement 10 of the present utility model is described.

As shown in Figure 4, first, at initialization step S11: phased array microwave energy transfer arrangement 10 of the present utility model starts operation, first according to traditional Scan orientation equipment, as the testing result of B ultrasonic machine, X-ray machine, nuclear magnetic resonance machine etc., know the position of interested specific objective in organism.

Subsequently, enter thermotherapy scheme determining step S13: according to the characteristic of this specific objective (such as, the type, position etc. of tumor), control part 11 generates a suitable heat protocol, such as, include but not limited to desired temperature and expection heat time heating time of this specific objective, and for the power of the thermotherapy microwave of this specific objective, waveform and frequency.

Subsequently, at thermotherapy microwave generation step S14, the power of the thermotherapy microwave determined in step s 13, waveform and frequency are sent to microwave energy transfer control portion 13 by control part 11.This microwave energy transfer control portion 13, after receiving the information from control part 11, controls described microwave source 16 and generates the thermotherapy microwave with this setting power, waveform, frequency.

At thermotherapy Microwave emission step S15, this thermotherapy microwave is transmitted into the accurate spatial locations (such as, being determined by traditional Scan orientation equipment) of this specific objective by zone plate portion 18.

The real time temperature of described specific objective is measured in thermometric portion 14, and measured temperature is sent to microwave energy transfer control portion 13.At thermotherapy temperature determination step S16, microwave energy transfer control portion 13 judges whether specific objective reaches the desired temperature (detailed process of microwave thermometric and computational methods refer to above for the description in " thermometric portion 14 ") of control part 11 heat protocol set in step s 13.If specific objective does not reach this desired temperature, then flow process returns step S14, is controlled increase Microwave emission power or increase pulse frequency by microwave energy transfer control portion 13; And if specific objective has reached this desired temperature, then in thermotherapy time determination step S17, judge whether to arrive the expection heat time heating time of heat protocol set in step s 13.If it is determined that reached described expection heat time heating time, then flow process has terminated at end step S22; Otherwise flow process returns step S17.

In addition, the parameter of each step of above-mentioned whole flow process, is all recorded in aforementioned display and storage part 15, and is demonstrated with the form of image conversion by this display and storage part 15.

Example 2

The operational instances 2 of phased array microwave energy transfer arrangement 10 of the present utility model is with the difference of above-mentioned example 1: this phased array microwave energy transfer arrangement also comprises resonant frequency and searches portion 12.As shown in Figure 2, resonant frequency is searched portion 12 and is connected with control part 11 with phased array antenna portion 17, microwave source 16.This resonant frequency portion of searching controls the microwave that described microwave source 16 sends different frequency, by phased array antenna portion 17 directional transmissions to specific objective; Meanwhile, the temperature of this specific objective is measured in real time by following thermometric portion 14.When maximum appears in the temperature of specific objective, the microwave frequency that can judge now is the resonant frequency of this specific objective.

As shown in Figure 5, between step S11 and S13, add resonant frequency determining step S12, wherein control part 11 controls the common resonant frequency judging described specific objective in described microwave energy transfer control portion 13 and thermometric portion 14.

In resonant frequency determining step S12, microwave energy transfer control portion 13 controls microwave source 16 and generates a series of low power microwave that frequency increases continuously in default frequency range, and this microwave is emitted to the accurate spatial locations place of described specific objective by phased array antenna portion 17.Meanwhile, thermometric portion 14 carries out thermometric to described specific objective in real time, and frequency-temperature relation is sent to control part 11.After described low power microwave completes the frequency sweep in default frequency range, control part 11 according to the frequency-temperature relation of gained, can be found out that frequency of the maximum temperature corresponding to specific objective, is the resonant frequency of this specific objective.

In S14 (determining thermotherapy microwave parameters) step afterwards, directly can adopt the resonant frequency of this specific objective determined in step S19, to reach best thermotherapy/non-thermotherapy effect.

Example 3

In above-mentioned each example, be all operate for main purpose with the thermotherapy to biological tissue, deactivation.But, thermotherapy is carried out for biological tissue's (such as, the lesion tissue near complicated blood vessel structure) at some specific position place, likely there is the worry of secure context.In this case, microwave can be utilized the non-thermal effect of organism, microwave irradiation is carried out to this biological tissue, make it produce non-thermal effect (as membrane perforation, be easy to drugs delivery, cut off DNA etc.).

As shown in Figure 6, in this example, the judgement of non-thermotherapy mode is added.Such as, in described therapeutic scheme determining step S13: control part 11 is determined to take thermotherapy mode or non-thermotherapy mode further, and determine the power of non-thermotherapy microwave of non-thermotherapy mode, waveform, frequency and pulse mode.

If control part 11 is determined to take non-thermotherapy mode, then flow process enters non-thermotherapy microwave generation step S18 at next step, and wherein this decision is sent to microwave energy transfer control portion 13 by control part 11.This microwave energy transfer control portion 13 is after receiving this decision (non-thermotherapy) from control part 11, and microwave source 16 generates the non-thermotherapy microwave with described power, waveform, frequency and pulse mode.

At non-thermotherapy Microwave emission step S19 subsequently, this non-thermotherapy microwave is transmitted into the accurate spatial locations of the specific objective determined by aforementioned conventional Scan orientation equipment by phased array antenna portion 17.At non-thermotherapy temperature determination step S20, microwave energy transfer control portion 13 judges whether specific objective reaches the desired temperature (detailed process of microwave thermometric and computational methods refer to above for the description in " thermometric portion 14 ") of heat protocol.If specific objective does not reach this desired temperature, then flow process returns step S18, is controlled to increase Microwave emission power by microwave energy transfer control portion 13; And if specific objective has reached this desired temperature, then judge whether to arrive the expection heat time heating time in heat protocol set in step s 13 in non-thermotherapy time determination step S21.If it is determined that reached described expection heat time heating time, then flow process has terminated at end step S22; Otherwise flow process returns step S21.

It should be noted that what heat effect and non-thermal effect always occurred simultaneously.When above-mentioned take non-thermotherapy mode, be only that treatment temperature is set as lower than treatment temperature during thermotherapy.Such as, in thermotherapy scheme, in order to deactivation effectively or make focus cell solidify, usually adopt the high temperature of such as more than 50 degree (having bibliographical information, when treating breast carcinoma and hepatocarcinoma with implanted microwave antenna, with 60-90 DEG C of high temperature by its thermocoagulation); And in non-thermotherapy scheme, in order to ensure the safety for the treatment of, treatment temperature can be arranged on such as about 40 degree (can not make focus warm area degree be increased to the patient of more than 42.5 DEG C and the patient in the thermotherapy intermission for apart from the body surface degree of depth more than when the pernicious focus of 15cm or actual thermotherapy treatment, and osteocarcinoma cannot tolerate the patient that thermotherapy causes osteodynia, can take the non-thermal therapeutic scheme of microwave).

Example 4

The operational instances 4 of phased array microwave energy transfer arrangement 10 of the present utility model is different from above-mentioned example 1-3 and is: the micro-wave frequency of the thermotherapy determined in thermotherapy scheme determining step S13 is multiple frequency, but not single-frequency.To the advantage of the multiple thermotherapy microwave frequency of thermotherapy goal setting be: avoid the toleration that histiocyte produces single-frequency microwave, thus more effectively carry out deactivation.

In the case, the different subregions in phased array antenna portion 17 can be utilized, the thermotherapy microwave with different frequency is emitted to specific objective respectively.Under this multi-frequency microwave irradiates, can the more effectively tissue such as deactivation such as cancerous cell.

Above exemplary embodiment is only used for illustrating principle of the present utility model, and is not intended to limit protection domain of the present utility model.Those skilled in the art, in the scope not deviating from spirit that this utility model discloses and principle, can make various improvement to this utility model, and can not exceed the scope be defined by the claims.

Claims (6)

1. utilize a microwave energy transporter for phased array antenna, it is characterized in that, comprising:

Control part;

Be connected respectively to microwave energy transfer control portion and the thermometric portion of this control part;

Microwave source, described microwave energy transfer control portion and temperature measurement fraction are not connected to this microwave source; And

Phased array antenna portion and zone plate emission part, be connected respectively to described microwave source, and this phased array antenna portion is also connected to described thermometric portion;

Wherein, described microwave energy transfer control portion, according to the heat protocol determined by described control part, determines micro-wave frequency to be launched, power and waveform;

Described thermometric portion implements thermometric to specific objective, and temperature-measuring results is sent to described control part;

Described microwave source, according to be launched micro-wave frequency, power and the waveform determined by described microwave energy transfer control portion, generates the microwave to be launched with this frequency, power and waveform;

Described phased array antenna portion and/or described zone plate emission part are under the control in described microwave energy transfer control portion, according to the spatial positional information of described specific objective, launch the microwave to be launched with described frequency, power, waveform generated by described microwave source to this specific objective.

2. utilize the microwave energy transporter of phased array antenna as claimed in claim 1, it is characterized in that, also comprise a display and storage part, for the form of image conversion, the temperature-measuring results by described thermometric portion is shown; Further, this display and storage part also store the temperature-measuring results by described thermometric portion.

3. utilize the microwave energy transporter of phased array antenna as claimed in claim 1, it is characterized in that, also comprise resonant frequency and search portion, this resonant frequency is searched portion and is connected with described control part with described phased array antenna portion, described microwave source.

4. utilize the microwave energy transporter of phased array antenna as claimed in claim 1, it is characterized in that,

Described phased array antenna portion has multiple subregion, for launching the microwave of different frequency to described specific objective simultaneously.

5. utilize the microwave energy transporter of phased array antenna as claimed in claim 1, it is characterized in that, described thermometric portion is infrared temperature measurement apparatus.

6. utilize the microwave energy transporter of phased array antenna as claimed in claim 1, it is characterized in that, described zone plate emission part has the multiple zone plates corresponding respectively to different tranmitting frequency.