CN103480092A - Device and method for controlling ultrasonic energy output and ultrasonic therapy device - Google Patents
Device and method for controlling ultrasonic energy output and ultrasonic therapy device Download PDFInfo
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Abstract
The invention provides a device for controlling ultrasonic energy output. The device comprises a control unit, an input unit and a drive unit, and further comprises an acquiring unit which is used for acquiring and outputting the actual ultrasonic energy value output by an ultrasonic transducer in real time to the control unit. The control unit is used for calculating or obtaining an alerting range corresponding to set ultrasonic energy parameters according to the set ultrasonic energy parameters input by a user, judging whether the actual ultrasonic energy value output by the ultrasonic transducer in real time is in the alerting range or not and outputting corresponding control signals according to a judgment result to control the drive unit to drive the ultrasonic transducer to continue to output the ultrasonic energy or to stop outputting the ultrasonic energy. Correspondingly, the invention provides a device for controlling the ultrasonic energy output. By means of the device and method for controlling the ultrasonic energy output, the safety and the accuracy of the ultrasonic therapy can be improved.
Description
Technical field
The invention belongs to the ultrasonic therapeutic technical field, be specifically related to a kind of ultrasonic energy output-controlling device, the ultrasonic therapeutic apparatus that comprises this ultrasonic energy output-controlling device and ultrasonic energy output control method.
Background technology
High intensity focused ultrasound (High Intensity Focused Ultrasound, be called for short HIFU) Therapeutic Method is the new method of the non-invasive therapy that gets up of developed recently.High-strength focusing ultrasonic therapy equipment is using ultrasound wave as the treatment source, but utilize ultrasound wave good physical characteristics such as directivity, penetrance and focusing in biological tissue, the ultrasound wave of external low energy densities is focused on to the target tissue in organism, to form the high sound intensity focus in target tissue, heat effect, mechanical effect and cavitation effect that the ultrasound wave of the high-energy-density of assembling by the focus place produces destroy such as non-normal tissue's cells such as tumor, cancers, realize the purpose of non-invasive therapy.In therapeutic process, the ultrasound wave of the high-energy-density that assemble at the focus place can make the tissue generation coagulation necrosis at illuminated position, and for the normal structure beyond focus, because its ultrasonic energy density absorbed is lower, the ultrasonic energy that it can be absorbed by the blood circulation in body is taken away, thereby generally can not cause damage by focusing tissue in addition.
Usually, in high-strength focusing ultrasonic therapy equipment, be to adopt ultrasonic transducer produce under the driving effect of driver element and launch hyperacoustic.Wherein, driver element provides electric energy for ultrasonic transducer, piezoelectric effect occurs in the piezoelectric in ultrasonic transducer under electric field action, thereby convert electrical energy into the mechanical energy of ultrasound wave form, thereby be that ultrasound wave that ultrasonic transducer is sent focuses in the target tissue in organism and reaches the purpose of destroying such as non-normal tissue's cells such as tumor, cancers in therapeutic process.
At present, driver element in ultrasonic therapeutic apparatus normally adopts constant pressure type type of drive or constant current mode type of drive to drive ultrasonic transducer output ultrasonic energy, but because the various factors such as depolarization of piezoceramic material in the variation of the fluctuation of driving voltage, drive current and ultrasonic transducer the stability of the ultrasonic energy of ultrasonic transducer emission; Simultaneously, propagation due to ultrasound wave after entering in organism easily is subject to the impact of the factors such as media variations, boundary reflection, environment for use, cause ultrasonic energy and the needed dosage of actual therapeutic of actual arrival organism internal object target tissue variant, thereby may cause the situation of futile treatment or over-treatment to occur, futile treatment can affect the curative effect for the treatment of, and over-treatment can bring the hidden danger of secure context even can make in organism normal structure destroyed to treatment.
The output acoustic power of ultrasonic transducer (ultraphonic agent amount) is to weigh a fundamental physical quantity of ultrasonic energy size in sound field, and described output acoustic power is relevant to the electrical power of this ultrasonic transducer.In the prior art, the general output acoustic power that adopts constant pressure type type of drive or constant current mode type of drive to control ultrasonic transducer, after completing, the ultrasonic transducer manufacture first measures ultrasonic transducer corresponding output acoustic power under different driving voltage or drive current, in therapeutic process, by driving voltage or the drive current of regulating ultrasonic transducer, obtain required ultrasonic energy.But facts have proved, although adopt the constant pressure type type of drive can keep voltage constant constant, but electric current still can change along with the change of the ultrasound emission material in ultrasonic transducer and ultrasonic passage, therefore electrical power can can't keep thereupon changing invariable, correspondingly, its output acoustic power also will change thereupon; In like manner, adopt the constant current mode type of drive can't keep too electrical power invariable, thereby also just can't guarantee the constant of output acoustic power.Even take measures to driving voltage or drive current is detected and feedback control, so that the output acoustic power of ultrasonic transducer can return to required steady state value within a period of time,, when yet feedback circuit is adjusted to steady state value by output acoustic power by the time, futile treatment or over-treatment often occur.Because it is original just very short usually to carry out the time of ultrasonic therapeutic, generally can not surpass half a minute, want in a short period of time the output acoustic power of ultrasonic transducer to be adjusted to steady state value, obviously be difficult to realization.
In summary, existing ultrasonic therapeutic apparatus ultrasonic energy to ultrasonic transducer output in therapeutic process carries out the generation that the definite technological means of effectively controlling can not well reduce the malpractice situation.How safety based on improving treatment and reduce the consideration of malpractice, promote in the scope that the output that makes ultrasonic energy can be controlled at safe dose and become current problem demanding prompt solution.
Summary of the invention
Technical problem to be solved by this invention is for above shortcomings in prior art, a kind of ultrasonic energy output-controlling device, the ultrasonic therapeutic apparatus that comprises this ultrasonic energy output-controlling device and ultrasonic energy output control method are provided, this ultrasonic energy output-controlling device and ultrasonic energy output control method can control effectively to the ultrasonic energy of ultrasonic transducer output, thereby further promote safety and the accuracy of ultrasonic therapeutic.
The technical scheme that solution the technology of the present invention problem adopts is that this ultrasonic energy output-controlling device comprises:
Control unit;
Input block, for the setting ultrasonic energy parameter that receives user input and to the control unit of exporting;
Driver element, for the output of the order-driven ultrasonic transducer according to control unit ultrasonic energy;
This device also comprises:
Acquiring unit, for obtaining the real-time actual ultrasonic energy value of exporting of ultrasonic transducer and to the control unit of exporting;
Described control unit also for the user according to the input setting ultrasonic energy calculation of parameter or obtain fence coverage corresponding to this setting ultrasonic energy parameter, with the ultrasonic energy value that judges in real time output of ultrasonic transducer whether in described fence coverage, and export corresponding control signal according to judged result, continue the output ultrasonic energy or stop driving ultrasonic transducer output ultrasonic energy to control the drive unit drives ultrasonic transducer.
Preferably, the setting ultrasonic energy parameter of described user's input is for setting sound power value or setting the electrical power value; Described acquiring unit employing can be measured the actual acoustical power of ultrasonic transducer output or the measuring mechanism of actual electric power in real time.
The fence coverage that described control unit calculates or obtains is warning acoustical power scope or warning electric power range.Preferably, described warning acoustical power scope is: set sound power value * (1 ± 10%); Described warning electric power range is: set electrical power value * (1 ± 10%).
Preferably, the setting ultrasonic energy parameter of described user's input is for setting sound power value, in this device, also comprise: memory element, for the ultrasonic energy reference table that prestores, shone upon the corresponding electrical power value of each sound power value in described ultrasonic energy reference table; Described control unit comprises processing module, described processing module is transferred the ultrasonic energy reference table for the setting sound power value according to user's input from memory element, to obtain the setting electrical power value corresponding with described setting sound power value, and according to described setting electric work modulus control driver element work.
Further preferably, the ultrasonic energy reference table prestored in described memory element is a plurality of, the corresponding ultrasonic transducer of described each ultrasonic energy reference table; Described input block is also for the identification information that receives user input and export described identification information to control unit, and the ultrasonic transducer that described identification information is corresponding with a certain ultrasonic energy reference table of storing in memory element is associated; The processing module of described control unit is also transferred the corresponding ultrasonic energy reference table of the ultrasonic transducer be associated with this identification information for the identification information according to user's input from memory element.
Further preferably, described acquiring unit adopts the measuring mechanism of the actual electric power value that can measure in real time ultrasonic transducer output; Described memory element, also for the warning electric power range reference table that prestores, has been shone upon each setting electrical power and has been worth corresponding warning electric power range in described warning electric power range reference table; The processing module of described control unit is also for transferring corresponding warning electric power range reference table according to setting the electrical power value from memory element, be worth corresponding warning electric power range to obtain the setting electrical power, and whether the actual electric power value that judges in real time output of ultrasonic transducer is in described warning electric power range, export corresponding control signal according to judged result again, to control the drive unit drives ultrasonic transducer, continue the output ultrasonic energy or stop driving ultrasonic transducer output ultrasonic energy.
More preferably, described input block is also for receiving the treatment time value to the control unit of exporting of user's input; Also include timing module in described control unit, described timing module is for receiving the treatment time value of user's input, carry out timing with the working time for to each treatment ultrasonic transducer, and output signal to processing module during value in the treatment time that the working time of ultrasonic transducer reaches user input; Described processing module stops driving described ultrasonic transducer according to the signal controlling driver element of timing unit output.
Further preferably, described driver element also comprises feedback unit and regulon, described feedback unit is for obtaining the described driver element outfan actual electric power value of output in real time, and described electrical power value is fed back to regulon, described regulon, for the described electrical power value received is adjusted, be take and dwindled it and set the difference between the electrical power value until described difference is zero.
A kind of ultrasonic therapeutic apparatus, comprise ultrasonic energy output-controlling device and ultrasonic transducer, and described ultrasonic energy output-controlling device adopts above-mentioned ultrasonic energy output-controlling device.
Preferably, also include the condition prompting unit in this equipment, described control unit also for the signal different according to the whether in running order output of ultrasonic transducer to the condition prompting unit, described condition prompting unit is for sending prompting according to the signal that receives.
A kind of ultrasonic energy output control method, comprise the steps:
S1: the setting ultrasonic energy parameter that receives user's input;
S2: according to the setting ultrasonic energy parameter of user's input, control ultrasonic transducer output ultrasonic energy;
S3: the actual ultrasonic energy value of Real-time Obtaining ultrasonic transducer output;
S4: whether the ultrasonic energy value that judges in real time output of ultrasonic transducer in the fence coverage of described setting ultrasonic energy parameter, and is controlled ultrasonic transducer according to judged result and is continued the output ultrasonic energy or stop exporting ultrasonic energy.
Preferably, the setting ultrasonic energy parameter of described user's input is for setting sound power value, and step S2 comprises:
S21: set up the ultrasonic energy reference table, shone upon the corresponding electrical power value of each sound power value in described ultrasonic energy reference table;
S22: according to the setting sound power value of user's input, obtain setting electrical power value correspondingly from described ultrasonic energy reference table;
S23: according to described setting electric work modulus control ultrasonic transducer output ultrasonic energy.
Preferably, in described step S21, the step of setting up the ultrasonic energy reference table is as follows:
S211: adopt respectively different electrical power to drive ultrasonic transducer, and measure the actual sound power value of the corresponding output of ultrasonic transducer under different electrical power drives simultaneously;
S212: each electrical power value and the sound power value corresponding with it are recorded, obtained described ultrasonic energy reference table.
Preferably, in step S4, the step of obtaining described fence coverage is as follows:
S41: calculate warning electric power range correspondingly according to described setting electrical power value, described warning electric power range is: set electrical power value * (1 ± 10%), the warning electric power range calculated is fence coverage.
Preferably, in step S1, also comprise: the treatment time value that receives user's input; And the method is further comprising the steps of:
S5: the working time to ultrasonic transducer at every turn while treating is carried out timing, when the working time of ultrasonic transducer, reaches described treatment time during value, controls ultrasonic transducer and stops exporting ultrasonic energy.
The invention has the beneficial effects as follows: the present invention can control effectively to the ultrasonic energy of ultrasonic transducer output, promote the stability of the ultrasonic energy of output, the ultrasonic energy that reduces output produces the possibility of fluctuation, thereby can promote safety and the accuracy of ultrasonic therapeutic.This device is specially adapted in high-strength focusing ultrasonic therapy equipment.
The accompanying drawing explanation
The flow chart that Fig. 1 is ultrasonic energy output control method in the embodiment of the present invention 2;
The concrete steps figure that Fig. 2 is step S2 in Fig. 1 flow chart;
The structural representation that Fig. 3 is ultrasonic therapeutic apparatus in the embodiment of the present invention 2.
The specific embodiment
For making those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1:
In the present embodiment, this ultrasonic energy output-controlling device comprises:
Control unit;
Input block, for the setting ultrasonic energy parameter that receives user input and to the control unit of exporting;
Driver element, for the output of the order-driven ultrasonic transducer according to control unit ultrasonic energy;
This device also comprises:
Acquiring unit, for obtaining the real-time ultrasonic energy value of exporting of ultrasonic transducer and to the control unit of exporting;
Described control unit also for according to the input setting ultrasonic energy calculation of parameter or obtain fence coverage corresponding to this setting ultrasonic energy parameter, with the ultrasonic energy that judges in real time output of ultrasonic transducer whether in described fence coverage, and export corresponding control signal according to judged result, continue the output ultrasonic energy or stop driving ultrasonic transducer output ultrasonic energy to control the drive unit drives ultrasonic transducer.
A kind of ultrasonic therapeutic apparatus, comprise ultrasonic energy output-controlling device and ultrasonic transducer, and described ultrasonic energy output-controlling device adopts above-mentioned ultrasonic energy output-controlling device.
A kind of ultrasonic energy output control method, comprise the steps:
S1: the setting ultrasonic energy parameter that receives user's input;
S2: according to the setting ultrasonic energy parameter of user's input, control ultrasonic transducer output ultrasonic energy;
S3: the actual ultrasonic energy value of Real-time Obtaining ultrasonic transducer output;
S4: whether the ultrasonic energy value that judges in real time output of ultrasonic transducer in the fence coverage of described setting ultrasonic energy parameter, and is controlled ultrasonic transducer according to judged result and is continued the output ultrasonic energy or stop exporting ultrasonic energy.
Embodiment 2:
As shown in Figure 1, in the present embodiment, the ultrasonic energy output control method comprises the steps:
Step S1: the setting ultrasonic energy parameter that receives user's input.
The user inputs the ultrasonic energy parameter by input block.Input block is specifically as follows keyboard, mouse, speech input device etc.
Wherein, the setting ultrasonic energy parameter of user's input is generally and sets sound power value or set the electrical power value.Particularly, in the present embodiment, the setting ultrasonic energy parameter of user's input is for setting sound power value.
Step S2: according to the setting ultrasonic energy parameter of user's input, control ultrasonic transducer output ultrasonic energy.
Particularly, as shown in Figure 2, step S2 comprises:
Step S21: set up the ultrasonic energy reference table, shone upon the corresponding electrical power value of each sound power value in described ultrasonic energy reference table;
Step S22: according to the setting sound power value of user's input, obtain setting electrical power value correspondingly from described ultrasonic energy reference table;
Step S23: according to described setting electric work modulus control ultrasonic transducer output ultrasonic energy.
Wherein, in step S21, the step of setting up the ultrasonic energy reference table is as follows:
Step S211: adopt respectively different electrical power to drive ultrasonic transducer, and measure the actual sound power value of the corresponding output of ultrasonic transducer under different electrical power drives simultaneously;
Step S212: each electrical power value and the sound power value corresponding with it are recorded, obtained described ultrasonic energy reference table.
Particularly, adopt sound power level to be measured the sound power value of the ultrasonic transducer in a certain ultrasonic therapeutic apparatus.Wherein, ultrasonic transducer carries out work by drive unit drives.
In the present embodiment, the sound power value corresponding to several electrical power values that the step pitch measuring method such as obtains at the step pitch such as first pass through, wherein, the unit of electrical power value, sound power value is W, as, be respectively 0W etc. several electrical power values of step pitch, 50W, 100W, 150W, Then, then the interpolation algorithm adopted calculate each electrical power value between each step pitch corresponding sound power value respectively.Certainly, the step pitch measuring method such as also can only adopt directly to be measured to obtain the ultrasonic energy reference table, now fixing stride value can arrange smallerly.
Before actual measurement, first by described sound power level zero clearing.While measuring acoustical power, sound power level is positioned over to the position of focus (not for any measuring object) the below 1-2cm apart from ultrasonic transducer, adjusts the electromotive power output value of driver element in ultrasonic therapeutic apparatus, from 0W, with etc. the mode of step pitch increase.In the present embodiment, employing etc. stride value be 50W, when driver element is at interval of the 50W electromotive power output, adopt sound power level to measure the sound power value of the corresponding output of ultrasonic transducer.Be specially, driver element is exported certain electrical power value (such as 50W) to ultrasonic transducer, operator's sound power value that (being generally about 5 seconds) shows in reading sound power level after the sound power level stable reading, this sound power value is above-mentioned electrical power and is worth corresponding sound power value, correspondence is write down described electrical power value and sound power value (this measuring process can be repeated repeatedly again, the electrical power value that makes driver element at every turn export ultrasonic transducer to remains unchanged, record again and average reading the sound power value obtained in each sound power level, this meansigma methods is worth to corresponding sound power value as described electrical power, further to improve the accuracy of measurement), then the electrical power value of driver element output is increased to a fixedly step pitch (such as being increased to 100W), then read in the manner described above the sound power value shown in the sound power level line item of going forward side by side, and then the electrical power value of driver element output is increased to a fixedly step pitch (such as being increased to 150W) ... repeat above-mentioned steps, until measure the maximum sound power value in required scope.The electrical power value obtained from above-mentioned measurement and the mapping table of sound power value are required ultrasonic energy reference table.For example, following table 1 is the ultrasonic energy reference table of the inventor company ultrasonic transducer of a type commonly used.
Table 1
| Electrical power value (W) | Sound power value (W) |
| 0 | 0 |
| 50 | 35 |
| 100 | 72 |
| 150 | 100 |
| 200 | 146 |
| 250 | 175 |
| 300 | 215 |
| 350 | 243 |
| 400 | 300 |
| 450 | 320 |
| 500 | 359 |
| 550 | 387 |
| 600 | 426 |
| ...... | ...... |
| 1000 | 720 |
| ...... | ...... |
Due to differing greatly between each sound power value measured in table 1, in order to treat needs, can utilize the ultrasonic energy reference table that calculates the corresponding relation of more detailed expression electrical power value and sound power value in table 1 by interpolation algorithm.In the present embodiment, the interpolation algorithm adopted is linear interpolation algorithm.
Particularly, the numerical value in his-and-hers watches 1 between a plurality of sound power values is calculated by linear interpolation algorithm, to calculate its corresponding electrical power value.In the present embodiment, the linear interpolation formula adopted is as follows:
(b-b
1)/(i-i
1)=（b
2-b
1)/(i
2-i
1) （1）
Wherein: i means sound power value, and b means the corresponding electrical power value of sound power value, b
1and b
2mean respectively two electrical power values known in table 1, i
1and i
2mean respectively and b
1and b
2the sound power value that difference is corresponding.Utilize formula (1), can computer chart 1 in the numerical value of sound power value between any two sound power values.Such as, if make sound power value i=1 calculate its corresponding electrical power value b, due to b
1, b
2, i
1, i
2all known, thereby can calculate the electrical power value b=1.4 that this sound power value is corresponding.Below, by sound power value being take to the mode that fixedly step pitch increases progressively as 1W, adopt interpolation calculation to go out the corresponding electrical power value of each sound power value, the sound power value obtained after the calculating ultrasonic energy reference table corresponding with the electrical power value is as shown in Table 2 below.
Table 2
| Sound power value (W) | Electrical power value (W) |
| 0 | 0 |
| 1 | 1.4 |
| 2 | 2.9 |
| 3 | 4.3 |
| ...... | ...... |
| 35 | 50 |
| 36 | 51.4 |
| 37 | 52.7 |
| ...... | ...... |
| 72 | 100 |
| 73 | 101.8 |
| ...... | ...... |
| 99 | 148.2 |
| 100 | 150 |
| 101 | 151.1 |
| ...... | ...... |
| 145 | 198.9 |
| 146 | 200 |
| ...... | ...... |
| 387 | 550 |
| 388 | 551.3 |
| ...... | ...... |
| 425 | 598.7 |
| 426 | 600 |
| ...... | ...... |
| 720 | 1000 |
| ...... | ...... |
Table 2 is required ultrasonic energy reference table.Certainly, if need to obtain less sound power value, can also further dwindle to ask for corresponding electrical power value by setting sound power value.
Certainly, interpolation method also can adopt other algorithms except linear interpolation method.
Each opposite sex due to electrical power value in each ultrasonic transducer and sound power value corresponding relation, accuracy for electrical power value and sound power value corresponding relation in the ultrasonic energy reference table that guarantees to set up for each ultrasonic transducer, each ultrasonic transducer generally all will be tested the corresponding relation of electrical power value and sound power value when first the use, each ultrasonic transducer is all needed to set up the ultrasonic energy reference table.And, along with the ultrasonic transducer increase of service time, the corresponding relation of its electrical power value and sound power value is also constantly changing, thereby, in the service life of this ultrasonic transducer, preferably every year can both repeated measure once, by adjusting the ultrasonic energy reference table, to adapt to the corresponding relation changed.
Step S3: the actual ultrasonic energy value of Real-time Obtaining ultrasonic transducer output.
Particularly, can obtain the ultrasonic energy value that ultrasonic transducer is exported by actual sound power value or the actual electric power value of measuring ultrasonic transducer output.
In the present embodiment, by the actual electric power value of measuring ultrasonic transducer output, measure the ultrasonic energy value of ultrasonic transducer output.Specifically can adopt power sensor to measure in real time the actual electric power of ultrasonic transducer output, to obtain the actual electric power value of ultrasonic transducer output.
Step S4: whether the ultrasonic energy value that judges in real time output of ultrasonic transducer in the fence coverage of described setting ultrasonic energy parameter, and is controlled ultrasonic transducer according to judged result and is continued the output ultrasonic energy or stop exporting ultrasonic energy.
In the present embodiment, described fence coverage is specially the warning electric power range.Described warning electric power range is to calculate according to the corresponding setting electrical power of the setting sound power value value of user's input, described warning electric power range=setting electrical power value * (1 ± 10%).
Here it should be understood that, above-mentioned warning electric power range has been considered each opposite sex of ultrasound emission material and the ultrasonic passage of ultrasonic transducer, and the propagation of ultrasound wave after in entering organism be subject to the factors such as media variations, boundary reflection, environment for use, therefore can guarantee in safe dose scope that the ultrasonic energy of the target tissue that actual arrival organism is interior should use in actual therapeutic.
A kind of ultrasonic therapeutic apparatus also is provided in the present embodiment, and this ultrasonic therapeutic apparatus is a kind of high-strength focusing ultrasonic therapy equipment specifically, for the target tissue in organism, carries out high-strength focusing ultrasonic therapy.
As shown in Figure 3, this ultrasonic therapeutic apparatus comprises ultrasonic energy output-controlling device and ultrasonic transducer.
Described ultrasonic energy output-controlling device comprises input block, acquiring unit, memory element, driver element and control unit.
In the present embodiment, the setting ultrasonic energy parameter of described user's input is for setting sound power value, and described input block is used for receiving the setting sound power value of user's input and to the control unit of exporting, prestore the ultrasonic energy reference table (for example table 2) of making by preceding method in described memory element, shone upon the corresponding electrical power value of each sound power value in this ultrasonic energy reference table, in the present embodiment, described acquiring unit adopts the measuring mechanism of the actual electric power value that can measure in real time ultrasonic transducer output, described measuring mechanism specifically can adopt power sensor, described power sensor can directly measure the actual electric power value of ultrasonic transducer output, and described acquiring unit is for obtaining the real-time actual electric power value of exporting of ultrasonic transducer and to the control unit of exporting, described driver element is for the output of the order-driven ultrasonic transducer according to control unit ultrasonic energy, described control unit comprises processing module, described processing module is transferred described ultrasonic energy reference table for the setting sound power value according to user's input from memory element, to obtain the setting electrical power value corresponding with described setting sound power value, and according to described setting electric work modulus control drive unit drives ultrasonic transducer work, described processing module is also calculated the warning electric power range for the setting electrical power value according to obtaining from memory element, with the actual electric power value that judges in real time output of ultrasonic transducer whether in described warning electric power range, and export corresponding control signal according to judged result, continue the output ultrasonic energy or stop driving ultrasonic transducer output ultrasonic energy to control the drive unit drives ultrasonic transducer.
In the present embodiment, described control unit specifically adopts computer workstation.Described driver element can adopt the driver element of existing constant pressure type type of drive or constant current mode type of drive, it specifically comprises single-chip microcomputer, DC source and power amplifier, wherein, single-chip microcomputer for the setting electrical power value of reception control unit output and by it inner numerical simulation transducer changed, DC source is for exporting corresponding setting electrical power value; Power amplifier is amplified and drives ultrasonic transducer to export corresponding ultrasonic energy for the setting electrical power value to DC source output.
Preferably, also can include the condition prompting unit in this ultrasonic therapeutic apparatus, described control unit also for the signal different according to the whether in running order output of ultrasonic transducer to the condition prompting unit, described condition prompting unit sends prompting, the in running order or halted state with the described ultrasonic transducer of reminding user for the signal according to receiving.Described condition prompting unit is specifically as follows speaker or display screen.
Embodiment 3:
The difference of the present embodiment and embodiment 2 is: the ultrasonic energy reference table prestored in the memory element of the ultrasonic energy output-controlling device of the present embodiment is a plurality of, the corresponding ultrasonic transducer of described each ultrasonic energy reference table; Described input block is also for the identification information that receives user input and export described identification information to control unit, and the ultrasonic transducer that described identification information is corresponding with a certain ultrasonic energy reference table of storing in memory element is associated; The processing module of described control unit is also transferred the corresponding ultrasonic energy reference table of the ultrasonic transducer be associated with this identification information for the identification information according to user's input from memory element.
Wherein, the corresponding ultrasonic energy reference table of each ultrasonic transducer is according to the method for making the ultrasonic energy reference table in embodiment 2, ultrasonic transducer to be carried out to measurements and calculations to obtain.
Ultrasonic energy output-controlling device in the present embodiment is compared with the ultrasonic energy output-controlling device in embodiment 2, and its range of application is wider, in various dissimilar ultrasonic therapeutic apparatus.
In the present embodiment, other structures of ultrasonic energy output-controlling device, ultrasonic energy output control method are all identical with embodiment 2, repeat no more here.
Embodiment 4:
The difference of the present embodiment and embodiment 2 is: in the ultrasonic energy output-controlling device of the present embodiment, also prestore warning electric power range reference table in described memory element, shone upon each setting electrical power in described warning electric power range reference table and be worth corresponding warning electric power range; The processing module of described control unit is also transferred corresponding warning electric power range reference table for the setting electrical power value according to obtaining from the ultrasonic energy reference table from memory element, to obtain the setting electrical power, is worth corresponding warning electric power range.
In the present embodiment, other structures of ultrasonic energy output-controlling device, ultrasonic energy output control method are all identical with embodiment 2, repeat no more here.
Embodiment 5:
The difference of the present embodiment and embodiment 2 is: described driver element also comprises feedback unit and regulon, described feedback unit is for obtaining the described driver element outfan actual electric power value of output in real time, and described electrical power value is fed back to regulon, described regulon is for being adjusted the described electrical power value received, take dwindle it and set difference between the electrical power value until described difference as zero, so that the electromotive power output of driver element tends towards stability.
Wherein, described feedback unit specifically adopts sensor.The actual electric power value that described sensor is exported in real time for obtaining described driver element outfan, and export described electrical power value to described regulon.Concrete, described sensor comprises voltage sensor and current sensor, first measure the actual voltage value of driver element outfan, the actual current value of current sensor measurement driver element outfan by voltage sensor respectively, then both are multiplied each other and obtain the driver element outfan actual electric power value of output in real time; Perhaps, sensor also can adopt power sensor, and it can directly measure the driver element outfan actual electric power value of output in real time.
From the working method of above-mentioned driver element, in the present embodiment, the driver element of ultrasonic energy output-controlling device adopts the driver element of constant power type type of drive.
In the present embodiment, other structures of ultrasonic energy output-controlling device, ultrasonic energy output control method are all identical with embodiment 2, repeat no more here.
Embodiment 6:
The difference of the present embodiment and embodiment 2 is: in the ultrasonic energy output control method of the present embodiment, in step S1, also comprise: the treatment time value that receives user's input;
Described control method is further comprising the steps of:
S5: the working time to ultrasonic transducer at every turn while treating is carried out timing, when the working time of ultrasonic transducer, reaches described treatment time during value, controls ultrasonic transducer and stops exporting ultrasonic energy.
In the process carrying out high-strength focusing ultrasonic therapy, the time of ultrasonic transducer output ultrasonic energy is very short (generally within half a minute) usually, therefore operator can be controlled treatment by the treatment time value pre-entered, thereby cause normal structure generation coagulation necrosis so that the output ultrasonic energy dosage of avoiding causing because of human negligence is excessive.
In the present embodiment, other structures of ultrasonic energy output-controlling device, ultrasonic energy output control method are all identical with embodiment 2, repeat no more here.
In ultrasonic energy output intent in above-described embodiment 2-6, the setting ultrasonic energy parameter of user's input is the setting sound power value, in fact, the user also can be according to the treatment needs, obtain by the ultrasonic energy reference table of consulting this ultrasonic transducer association the setting electrical power value that required ultrasonic energy is corresponding, directly input the setting electrical power value that the required sound power value of described treatment is corresponding.
And, in described ultrasonic energy output intent, set sound power value and be set in the ultrasonic energy reference table with the relation of setting the electrical power value, this ultrasonic energy output intent is applicable to the output of seriality ultrasound wave or cyclical intermission ultrasound wave or other forms of multiple ultrasound in nature.
Accordingly, in described ultrasonic energy output-controlling device, input block also can and to the control unit of export for the setting electrical power value that receives user input, correspondingly, in this device, memory element need not be set.
In addition, acquiring unit also can adopt the measuring mechanism of the actual sound power value that can measure in real time ultrasonic transducer output; Correspondingly, the fence coverage that control unit calculated or obtained should be warning acoustical power scope.This warning acoustical power scope is: set sound power value * (1 ± 10%).
Ultrasonic energy output-controlling device of the present invention also can be for other ultrasonic therapeutic apparatus, such as for launching the physiotherapy equipment of low-intensity ultrasonic.
Ultrasonic therapeutic apparatus of the present invention and existing ultrasonic therapeutic apparatus are Comparatively speaking, ultrasonic energy output-controlling device of the present invention has been set up the Real-Time Monitoring mechanism of ultrasonic energy, the ultrasonic energy that effectively reduces output produces the possibility of fluctuation, can obtain the output of more stable ultrasonic energy, the accuracy of ultrasonic energy output can be effectively promoted, and the safety of therapeutic process can be more effectively guaranteed.
Be understandable that, above embodiment is only the illustrative embodiments adopted for principle of the present invention is described, yet the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement also are considered as protection scope of the present invention.
Claims (15)
1. a ultrasonic energy output-controlling device comprises:
Control unit;
Input block, for the setting ultrasonic energy parameter that receives user input and to the control unit of exporting;
Driver element, for the output of the order-driven ultrasonic transducer according to control unit ultrasonic energy;
It is characterized in that, this device also comprises:
Acquiring unit, for obtaining the real-time actual ultrasonic energy value of exporting of ultrasonic transducer and to the control unit of exporting;
Described control unit is also for the setting ultrasonic energy calculation of parameter according to user input or obtain fence coverage corresponding to this setting ultrasonic energy parameter, with the ultrasonic energy value that judges in real time output of ultrasonic transducer whether in described fence coverage, and export corresponding control signal according to judged result, continue the output ultrasonic energy or stop driving ultrasonic transducer output ultrasonic energy to control the drive unit drives ultrasonic transducer.
2. device according to claim 1, is characterized in that, the setting ultrasonic energy parameter of described user's input is for setting sound power value or setting the electrical power value; Described acquiring unit employing can be measured the actual sound power value of ultrasonic transducer output or the measuring mechanism of actual electric power value in real time.
3. device according to claim 2, it is characterized in that, the fence coverage that described control unit calculates or obtains is warning acoustical power scope or warning electric power range, described warning acoustical power scope is: set sound power value * (1 ± 10%), described warning electric power range is: set electrical power value * (1 ± 10%).
4. device according to claim 3, is characterized in that, the setting ultrasonic energy parameter of described user's input, for setting sound power value, also comprises in this device:
Memory element, for the ultrasonic energy reference table that prestores, shone upon the corresponding electrical power value of each sound power value in described ultrasonic energy reference table; Described control unit comprises processing module, described processing module is transferred the ultrasonic energy reference table for the setting sound power value according to user's input from memory element, to obtain the setting electrical power value corresponding with described setting sound power value, and according to described setting electric work modulus control driver element work.
5. device according to claim 4, is characterized in that,
The ultrasonic energy reference table prestored in described memory element is a plurality of, the corresponding ultrasonic transducer of described each ultrasonic energy reference table;
Described input block is also for the identification information that receives user input and export described identification information to control unit, and the ultrasonic transducer that described identification information is corresponding with a certain ultrasonic energy reference table of storing in memory element is associated;
The processing module of described control unit is also transferred the corresponding ultrasonic energy reference table of the ultrasonic transducer be associated with this identification information for the identification information according to user's input from memory element.
6. device according to claim 4, is characterized in that,
Described acquiring unit adopts the measuring mechanism of the actual electric power value that can measure in real time ultrasonic transducer output;
Described memory element, also for the warning electric power range reference table that prestores, has been shone upon each setting electrical power and has been worth corresponding warning electric power range in described warning electric power range reference table;
The processing module of described control unit is also for transferring corresponding warning electric power range reference table according to setting the electrical power value from memory element, be worth corresponding warning electric power range to obtain the setting electrical power, and whether the actual electric power value that judges in real time output of ultrasonic transducer is in described warning electric power range, export corresponding control signal according to judged result again, to control the drive unit drives ultrasonic transducer, continue the output ultrasonic energy or stop driving ultrasonic transducer output ultrasonic energy.
7. according to the described device of one of claim 4-6, it is characterized in that,
Described input block is also for receiving the treatment time value to the control unit of exporting of user input;
Also include timing module in described control unit, described timing module is for receiving the treatment time value of user's input, carry out timing with the working time for to each treatment ultrasonic transducer, and output signal to processing module during value in the treatment time that the working time of ultrasonic transducer reaches user input;
Described processing module stops driving described ultrasonic transducer according to the signal controlling driver element of timing unit output.
8. according to the described device of one of claim 1-6, it is characterized in that,
Described driver element also comprises feedback unit and regulon, described feedback unit is for obtaining the described driver element outfan actual electric power value of output in real time, and described electrical power value is fed back to regulon, described regulon, for the described electrical power value received is adjusted, be take and dwindled it and set the difference between the electrical power value until described difference is zero.
9. a ultrasonic therapeutic apparatus, comprise ultrasonic energy output-controlling device and ultrasonic transducer, it is characterized in that, described ultrasonic energy output-controlling device adopts one of claim 1-8 described ultrasonic energy output-controlling device.
10. ultrasonic therapeutic apparatus according to claim 9, is characterized in that, also includes the condition prompting unit in this equipment,
Described control unit also for the signal different according to the whether in running order output of ultrasonic transducer to the condition prompting unit, described condition prompting unit is for sending prompting according to the signal that receives.
11. a ultrasonic energy output control method, comprise the steps:
S1: the setting ultrasonic energy parameter that receives user's input;
S2: according to the setting ultrasonic energy parameter of user's input, control ultrasonic transducer output ultrasonic energy;
S3: the actual ultrasonic energy value of Real-time Obtaining ultrasonic transducer output;
S4: whether the ultrasonic energy value that judges in real time output of ultrasonic transducer in the fence coverage of described setting ultrasonic energy parameter, and is controlled ultrasonic transducer according to judged result and is continued the output ultrasonic energy or stop exporting ultrasonic energy.
12. method according to claim 11, is characterized in that, the setting ultrasonic energy parameter of described user's input is for setting sound power value, and step S2 comprises:
S21: set up the ultrasonic energy reference table, shone upon the corresponding electrical power value of each sound power value in described ultrasonic energy reference table;
S22: according to the setting sound power value of user's input, obtain setting electrical power value correspondingly from described ultrasonic energy reference table;
S23: according to described setting electric work modulus control ultrasonic transducer output ultrasonic energy.
13. method according to claim 12, is characterized in that, in step S21, the step of setting up the ultrasonic energy reference table is as follows:
S211: adopt respectively different electrical power to drive ultrasonic transducer, and measure the actual sound power value of the corresponding output of ultrasonic transducer under different electrical power drives simultaneously;
S212: each electrical power value and the sound power value corresponding with it are recorded, obtained described ultrasonic energy reference table.
14. method according to claim 13, is characterized in that, in step S4, the step of obtaining described fence coverage is as follows:
S41: calculate warning electric power range correspondingly according to described setting electrical power value, described warning electric power range is: set electrical power value * (1 ± 10%), the warning electric power range calculated is fence coverage.
15. method according to claim 11, is characterized in that, also comprises in step S1: the treatment time value that receives user's input;
The method is further comprising the steps of:
S5: the working time to ultrasonic transducer at every turn while treating is carried out timing, when the working time of ultrasonic transducer, reaches described treatment time during value, controls ultrasonic transducer and stops exporting ultrasonic energy.
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