CN117839066A - Signal output device and method and electronic equipment - Google Patents
Signal output device and method and electronic equipment Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000005684 electric field Effects 0.000 claims abstract description 84
- 230000026683 transduction Effects 0.000 claims abstract description 45
- 238000010361 transduction Methods 0.000 claims abstract description 45
- 239000000919 ceramic Substances 0.000 claims abstract description 44
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 238000004590 computer program Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000002463 transducing effect Effects 0.000 claims description 4
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- 210000004027 cell Anatomy 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 230000001225 therapeutic effect Effects 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
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- 238000002679 ablation Methods 0.000 description 2
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- 238000003491 array Methods 0.000 description 1
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- 210000004881 tumor cell Anatomy 0.000 description 1
- 238000002604 ultrasonography 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
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36002—Cancer treatment, e.g. tumour
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/025—Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/0404—Electrodes for external use
- A61N1/0472—Structure-related aspects
- A61N1/0492—Patch electrodes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/3603—Control systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N7/02—Localised ultrasound hyperthermia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0073—Ultrasound therapy using multiple frequencies
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Abstract
The embodiment of the application discloses a signal output device, a signal output method and electronic equipment, and relates to the field of signal control. The device comprises: the control signal generation module generates an electric field control signal and an ultrasonic control signal in a time sequence alternating relationship; the transduction patch comprises at least one pair of transducers, wherein the transducers comprise conducting layers, piezoelectric ceramic layers and gel layers which are arranged in a laminated mode; the conducting layer carries out signal conversion on the electric field control signal to obtain an alternating electric field signal and outputs the alternating electric field signal; the piezoelectric ceramic layer performs signal conversion on the ultrasonic control signal to obtain an ultrasonic signal and outputs the ultrasonic signal; the gel layer attaches the signal output device to the body surface. By adopting the embodiment of the application, the alternating electric field signals and the focused ultrasonic signals with alternating time sequences can be output to the body surface while the application range of the signal output device is improved, and the applicability is high.
Description
Technical Field
The present disclosure relates to the field of signal control, and in particular, to a signal output device, a signal output method, and an electronic device.
Background
Along with the rapid development of science and technology, the application of tumor therapeutic apparatuses is also becoming wider and wider. However, in the tumor therapeutic apparatus of the related art, an electric field signal or an ultrasonic signal is generally outputted through a signal output device of the tumor therapeutic apparatus to eliminate the simulated tumor.
However, the electric field treatment method can only inhibit the increase of the simulated tumor, but cannot completely eliminate the existing simulated tumor; by adopting the ultrasonic-based treatment method, although the tumor can be eliminated, normal biological tissues can be damaged, and both the ultrasonic-based treatment method and the ultrasonic-based treatment method can not eliminate the tumor and simultaneously do not damage the normal biological tissues. In the related art, the adopted signal output devices belong to large-scale apparatuses, are limited to specific use scenes, and cannot meet actual demands.
Disclosure of Invention
The embodiment of the application provides a signal output device, which aims to solve the problems that in the related technology, the application range of the signal output device is narrow, and normal biological tissues cannot be damaged while tumors are eliminated.
Correspondingly, the embodiment of the application also provides a signal output method, electronic equipment and a storage medium, which are used for guaranteeing the implementation and application of the method.
In one aspect, an embodiment of the present application provides a signal output apparatus, including:
the control signal generation module is used for generating a control signal; the control signals comprise an electric field control signal and an ultrasonic control signal which are in time sequence alternating relation; the control signal generation module comprises two signal receiving and transmitting interfaces;
At least one transduction patch including at least one pair of transducers, each transducer including a conductive layer, a piezoelectric ceramic layer, and a gel layer, which are stacked; the conductive layer is used for carrying out signal conversion on the electric field control signal to obtain an alternating electric field signal and outputting the alternating electric field signal; the piezoelectric ceramic layer is used for carrying out signal conversion on the ultrasonic control signal to obtain an ultrasonic signal and outputting the ultrasonic signal; the gel layer is used for attaching the signal output device to the body surface; the piezoelectric ceramic layer is connected with the control signal generating module through the other signal receiving and transmitting interface.
In another aspect, an embodiment of the present application provides a signal output method, including:
a control signal generation module in the control signal output device generates a control signal; the control signals comprise an electric field control signal and an ultrasonic control signal which are in time sequence alternating relation; the control signal generation module comprises two signal receiving and transmitting interfaces;
at least one transduction patch in the control signal output device outputs a signal according to the control signal;
the transduction patch comprises at least one pair of transducers, and each transducer comprises a conductive layer, a piezoelectric ceramic layer and a gel layer which are stacked; the conducting layer carries out signal conversion on the electric field control signal to obtain an alternating electric field signal and outputs the alternating electric field signal; the piezoelectric ceramic layer performs signal conversion on the ultrasonic control signal to obtain an ultrasonic signal and outputs the ultrasonic signal; the gel layer is attached to the body surface; the piezoelectric ceramic layer is connected with the control signal generating module through the other signal receiving and transmitting interface.
In another aspect, an embodiment of the present application provides an electronic device, including a processor and a memory, where the processor and the memory are connected to each other;
the memory is used for storing a computer program;
the processor is configured to execute the signal output method provided by the embodiment of the application when the computer program is called.
In another aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program that is executed by a processor to implement a signal output method provided by embodiments of the present application.
In the embodiment of the application, the signal output device comprises a control signal generation module and at least one pair of transducers, wherein the control signal generation module comprises two signal receiving and transmitting interfaces, and each transducer comprises a conducting layer, a piezoelectric ceramic layer and a gel layer which are arranged in a stacked manner; the piezoelectric ceramic layer is connected with the control signal generating module through the other signal receiving and transmitting interface. When signals are output through the signal output device, the whole signal output device is attached to the body surface through the gel layer, electric field control signals and ultrasonic control signals with time sequence alternation relationship are generated through the control signal generation module, and the electric field control signals are subjected to signal conversion through the conductive layer to obtain alternating electric field signals and output the alternating electric field signals; the ultrasonic control signals are subjected to signal conversion through the piezoelectric ceramic layer, so that ultrasonic signals are obtained and output; therefore, the application range of the signal output device is increased, and simultaneously, alternating electric field signals and focused ultrasonic signals with alternating time sequences can be output to the body surface, so that when the signal output device is applied to medical equipment, normal biological tissues are not damaged while tumors are eliminated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows one of schematic structural diagrams of a signal output device provided in an embodiment of the present application;
FIG. 2 shows a second schematic diagram of a signal output device according to an embodiment of the present disclosure;
fig. 3 shows a schematic structural diagram of a transduction patch according to an embodiment of the present application;
FIG. 4 shows a schematic structural diagram of a transducer provided by an embodiment of the present application;
fig. 5 shows an application scenario schematic diagram of a signal output device provided in an embodiment of the present application;
FIG. 6 shows one of the workflow diagrams of the signal output apparatus provided in the embodiments of the present application;
fig. 7 is a schematic structural diagram of a transducer unit array according to an embodiment of the present disclosure;
FIG. 8 is a second schematic diagram of the workflow of the signal output apparatus according to the embodiment of the present application;
FIG. 9 is a third schematic diagram of the workflow of the signal output apparatus according to the embodiment of the present application;
fig. 10 shows a schematic flow chart of a signal output method according to an embodiment of the present application;
fig. 11 shows a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, an embodiment of the present application provides a signal output apparatus 100, including:
a control signal generation module 101 for generating a control signal; the control signals comprise an electric field control signal and an ultrasonic control signal which are in time sequence alternating relation; the control signal generation module comprises two signal receiving and transmitting interfaces;
at least one transduction patch 102 including at least one pair of transducers, each transducer including a conductive layer, a piezoelectric ceramic layer, and a gel layer, which are stacked; the conductive layer is used for carrying out signal conversion on the electric field control signal to obtain an alternating electric field signal and outputting the alternating electric field signal; the piezoelectric ceramic layer is used for carrying out signal conversion on the ultrasonic control signal to obtain an ultrasonic signal and outputting the ultrasonic signal; the gel layer is used for attaching the signal output device to the body surface; the piezoelectric ceramic layer is connected with the control signal generating module through the other signal receiving and transmitting interface.
In the embodiment of the present application, the signal output device may be a wearable measuring instrument (for example, a head-mounted measuring instrument), or may be a measuring instrument generated by combining with an existing measuring instrument (for example, a tumor therapeutic instrument), which is not limited herein.
The control signal generation module may be implemented based on a sampling resistor, an operational amplifier, an ADC (Analog-to-digital converter) chip, and the like. The ADC chip is used for collecting voltage values of control signals output in a plurality of signal control periods (such as 5 periods), and calculating a difference value between a maximum value and a minimum value so as to obtain an amplitude value of an output signal; the frequency of the output signal is obtained by calculating the reciprocal of the time difference between the maximum and minimum values.
Optionally, the control signals include, but are not limited to, signals for controlling the phase, modulation frequency, modulation duty cycle, modulation waveform, modulation amplitude, each channel delay value, each channel output power, and each channel on time, etc. of the output signal. Among them, the channels may include, but are not limited to, channels (e.g., conductive layers) for outputting electric field signals and channels (e.g., piezoelectric ceramic layers) for outputting ultrasonic signals. The modulation frequency can be 1HZ (hertz) -37.5MHz (megahertz), the phase is 0-360 degrees, and the waveform type can comprise sine waves and square waves.
Optionally, the electric field control signal includes, but is not limited to, a signal for controlling a modulation frequency, a modulation duty cycle, a modulation waveform, a modulation amplitude, a delay value, an output power, an operating time, and the like of the alternating electric field signal.
The ultrasonic control signals include, but are not limited to, signals used to control the modulation frequency, modulation phase, modulation waveform, modulation amplitude, delay value, output power, and on time of the ultrasonic signals.
In the embodiment of the present application, the signal transceiver interface may also be referred to as a communication interface, a serial port, or the like. The ultrasonic control signals can be transmitted to the piezoelectric ceramic layer in the transduction patch through the signal receiving and transmitting interfaces corresponding to the ultrasonic control signals; and transmitting the electric field control signal to the conductive layer in the transduction patch through a signal receiving and transmitting interface corresponding to the electric field control signal.
In some embodiments, referring to fig. 2, the signal output device includes the above-mentioned transduction patch, a power module, a management system module, and a host. The power supply module is used for providing electric energy for the whole signal output device and can output 3.3V (volts), 5V and positive and negative 24V voltages. The management system module is used for setting parameters of the whole signal output device, displaying image information of the body surface in real time after outputting ultrasonic signals and alternating electric field signals to the body surface, and the like, wherein in the whole signal output system, only the management system module has a display function, and a user can control the output of operation signals through the management system module. The host includes the control signal generation module (which may also be a waveform generation, modulation, and control module).
Optionally, when the control signal includes a delay value and a working time of each channel, the delay value and the working time of each channel may also be sent to the timer, and when the delay value is 0, an instruction is sent to the transducer, so that the transducer starts to convert the control signal; or after the actual working time meets the working time corresponding to the control signal, sending an instruction to the energy converter, so that the energy converter stops converting the control signal.
The transduction patch may be composed of a transducer, a non-woven fabric, and an electrical interface. The non-woven fabric is used for firmly attaching the transduction patch to a user. The transducers are used to convert the control signals into ultrasonic signals or alternating electric field signals, referring to fig. 3, 4 transducers may be included in the transduction patch, and the 4 transducers may be controlled by a phased array algorithm to achieve focusing of the ultrasonic signals. The electrical interface of the transduction patch is connected with the signal receiving and transmitting interface of the host through a cable, and the cable can transmit control signals generated by the host and temperature values obtained by detecting the body surface.
Wherein, the phase control algorithm is: according to the different position relations between the ultrasonic transducer and the set focusing point, the transmitting time of each transducer is controlled, and the transmitting time is sequentially decreased: the transducers far from the set focusing point work firstly, and the transducers close to the set focusing point work later, so that the phase position of the ultrasonic waves emitted by all the transducers reaching the set focusing position is zero, and the ultrasonic waves generated by all the transducers are overlapped to form a focused ultrasonic field.
Referring to fig. 4, in the transducer, an electrode sheet, a piezoelectric ceramic layer, and a gel layer are included in a stacked arrangement, wherein the piezoelectric ceramic layer is located between the electrode sheet and the gel layer. Wherein the conductive layer may be generated by an electrode sheet. Through the gel layer, the transducer can be applied to the body surface better and can be used as a signal transmission medium to transmit alternating electric field signals and ultrasonic signals to the body surface.
In the embodiment of the application, the frequency range corresponding to the alternating electric field signal after the electric field control signal is subjected to signal conversion by the conductive layer can be 100-300kHZ (kilohertz) (preferably 170 kHZ), and the field strength range is 0.5-3V/cm (volt/cm) (preferably 2V/cm). The frequency range of the ultrasonic signal after the signal conversion of the ultrasonic control signal by the piezoelectric ceramic layer can be 0.5-5MHz (megahertz) (preferably 1 MHz), and the ultrasonic intensity range is 0.1-1KW/cm 2 (kilowatts per square centimeter) (preferably 0.8KW/cm 2).
In some possible embodiments, the transducer is in the shape of a fan ring, and the different transducers are arranged around a second center point of the transduction patch;
wherein the second center point overlaps the first center point when the transduction patch is attached to the body surface through the gel layer.
Optionally, the first center point is a center point of the target object under the body surface.
As an example, referring to fig. 3, four transducers are included in a transduction patch, each in the shape of a sector ring, and in the transduction patch, different transducers are arranged around a center point B of the transduction patch.
In the embodiment of the application, the transducers are in the shape of a fan ring, and different transducers are arranged around the second center point of the transduction patch; and when attaching the transduction patch to the body surface through the gel layer, the second center point overlaps with the first center point, so that each transducer can reach the first center point simultaneously when outputting signals through the signal output device, the signals output by each transducer can reach the first center point simultaneously, namely, no time delay exists in each transducer, and the focus calibration at the initial moment of signal output is convenient.
As an example, referring to fig. 5, when a signal is output to the head of a user through the signal output device, 4 transduction patches may be provided in the signal output device, and the positions of the 4 transduction patches are respectively in front of, behind, to the left of, and to the right of the signal output device, and when the whole signal output device is attached to the body surface through the gel layer in the transducer, the whole signal output device may be respectively attached to the forehead position, the occipital bone position, the upper left ear, and the upper right ear of the head of the user.
In one example, the transducer patch comprises a nonwoven fabric cut into sectors; a plurality of electrode plates which are separated from each other in space are attached to one surface of the non-woven fabric facing the human body, and each electrode plate comprises a conductive layer, a piezoelectric ceramic layer and a gel layer which are sequentially laminated; the conductive layers of the electrode plates are electrically connected; the piezoelectric ceramic layers of the electrode plates are electrically connected; the above arrangement facilitates increasing the flexibility of the transducer patch.
In the embodiment of the application, the signal output device comprises a control signal generation module and at least one pair of transducers, wherein the control signal generation module comprises two signal receiving and transmitting interfaces, and each transducer comprises a conducting layer, a piezoelectric ceramic layer and a gel layer which are arranged in a stacked manner; the piezoelectric ceramic layer is connected with the control signal generating module through the other signal receiving and transmitting interface. When signals are output through the signal output device, the whole signal output device is attached to the body surface through the gel layer, electric field control signals and ultrasonic control signals with time sequence alternation relationship are generated through the control signal generation module, and the electric field control signals are subjected to signal conversion through the conductive layer to obtain alternating electric field signals and output the alternating electric field signals; the ultrasonic control signals are subjected to signal conversion through the piezoelectric ceramic layer, so that ultrasonic signals are obtained and output; therefore, the application range of the signal output device is increased, and simultaneously, alternating electric field signals and focused ultrasonic signals with alternating time sequences can be output to the body surface, so that when the signal output device is applied to medical equipment, normal biological tissues are not damaged while tumors are eliminated.
In some possible embodiments, the piezoceramic layer is also used to isolate the conduction of current between the transducer in the transducer pair and the body surface during signal conversion of the electric field control signal by the conductive layer.
In the embodiment of the application, in the process of signal conversion of the electric field control signal by the conductive layer, the piezoelectric ceramic layer is used for isolating current conduction between the transducer in the transducer pair and the body surface, so that the conductive layer is insulated from the body surface, and the use safety is ensured.
In some possible embodiments, the transducer is further configured to receive a feedback signal for the ultrasonic signal, and send the feedback signal to the control signal generating module through a signal transceiver interface corresponding to the piezoelectric ceramic layer;
the control signal generation module is also used for: performing acoustic image conversion on the feedback signal; and adjusting the control signal according to the pixel difference value between the images obtained by converting the adjacent feedback signals.
In this embodiment of the present application, a mode in the related art may be adopted to perform acoustic image conversion on the feedback signal (may also be referred to as an echo signal), and determine a pixel value in the converted image, which is not described herein.
In some embodiments, referring to fig. 2, the host may further include an echo detection and image processing module, where the echo detection and image processing module is configured to perform acoustic image conversion on the feedback signal, obtain a converted image, and send the converted image to the management system module for display, so as to monitor, in real time, change information of the target object located under the body surface, thereby effectively adjusting the control signal.
The management system module analyzes images obtained by converting the feedback signals of two adjacent times, determines pixel difference values between the two images, determines whether the control signals need to be adjusted, generates signal adjustment instructions according to the pixel difference values when the control signals need to be adjusted, and sends the signal adjustment instructions to the control signal generation module to instruct the control signal generation module to regenerate the control signals.
In some possible embodiments, the control signal generation module is further configured to:
determining a first pixel value of a first image obtained by converting the sound wave image of the feedback signal;
determining a first depth value of a first center point of the target object according to the first pixel value;
determining a first depth value as a first distance between the transducer and a first center point;
a frequency value and an intensity value of the control signal are determined based on the first distance.
Alternatively, the method in the related art may be used to perform acoustic image conversion on the feedback signal and determine the pixel value in the converted image, which is not described herein.
It is possible to determine a region where the pixel values are concentrated and uniform as a region of the target object in the first image according to the distribution of the first pixel values in the first image, and further determine a depth value of the first center point of the target object according to the relationship between the pixels and the depth.
Further, a first depth value of the target object may be determined as the first distance.
In determining the frequency value of the control signal, the modulation frequency corresponding to the control signal can be used as the reference frequency f 0 For example f 0 The frequency value f=k (1/s) f of the control signal is =1 MHz 0 Wherein K is an adjustment coefficient, and a specific value can be set between 0.5 and 50; s is the first distance.
Alternatively, the sub-intensity values may be determined in accordance with the manner in which the sub-frequency values are determined.
In the embodiment of the application, the accuracy of the output signal can be improved by determining the frequency value and the intensity value of the control signal according to the first distance between the transducer and the first center point of the target object.
In some possible embodiments, the control signal generation module is further configured to:
when the feedback signal is changed, the second pixel value of the second image corresponding to the updated feedback signal is redetermined;
determining a second depth value of a third center point of the target object according to the second pixel value;
determining a second depth value as a third distance between the transducer and a third center point;
and updating the frequency value and the intensity value of the control signal according to the third distance.
Alternatively, the depth value of the third center point may be determined in a manner that determines the depth value of the first center point. And further determining a third distance, and updating the frequency value and the intensity value of the control signal according to the third distance, so that the frequency value and the intensity value of the control signal are adjusted in real time according to the actual condition of the target object, and the processing efficiency of the target object is improved.
Referring to fig. 6, when the signal is output through the signal output device, the ultrasonic focusing position (i.e., the first distance between the transducer and the first center point or the third distance between the transducer and the third center point) may be set specifically by the management system module, and the ultrasonic focusing position is issued to the host computer; the frequency, amplitude, phase, delay time and the like of the control signal are determined or updated according to the ultrasonic focusing position through a control signal generating module in the host, the delay time and the working time of the signal are sent to a timer, and the frequency, amplitude, phase and the like of the control signal are sent to the transducer; triggering the transducer to delay and output the ultrasonic signal or the alternating electric field signal after the control signal is converted through a timer, or switching the ultrasonic signal or the alternating electric field signal at fixed time through the timer; an alternating electric field signal is obtained through the conversion of an electric field control signal by a conductive layer in the transducer and is output, and an ultrasonic signal is obtained through the conversion of an ultrasonic control signal by a piezoelectric ceramic layer in the transducer and is output; the method comprises the steps that feedback signals are collected through an echo detection and image processing module and sent to a management system module; and determining whether the ultrasonic focusing position is deviated or not according to the feedback signal by the management system module, and correcting the ultrasonic focusing position when the deviation exists.
In some possible embodiments, the transducer comprises an array of transducing cells, the array of transducing cells comprising at least two transducing cells;
the control signal generation module determines a frequency value and an intensity value of the control signal according to the first distance, and comprises:
determining a second distance between each transduction unit and the first center point, and determining a longest distance among the second distances;
determining delay time and initial phase of the output sub-signals of the transduction units according to the distance difference between the second distance and the longest distance corresponding to each transduction unit;
determining a sub-frequency value or a sub-intensity value corresponding to each transduction unit according to the second distance corresponding to each transduction unit;
all the sub-signals output by the transduction units reach the target object at the same time, and the phase reaching the target object is the peak phase.
Optionally, the first center point is a center point of the target object under the body surface.
Referring to fig. 7, in the transducer cell array, the transducer cell array is equivalent to one concave spherical self-focusing transducer when focused at the center of the array by different transducer cells.
Taking the delay time, the sub-frequency value and the initial phase corresponding to the ultrasonic signal as examples, a specific manner of determining the delay time and the sub-frequency value is described as follows:
In determining the corresponding delay output time of the ith transducer element, a second distance s between the transducer element and the first center point may be determined i And the time t of the transduction unit reaching the first center point i ＝s i V, where v is the propagation velocity of the ultrasound in the tissue. Further, all second distances s are determined i Is the longest distance s 0 Time t for the transduction unit corresponding to the longest distance to reach the first center point 0 The delay output time of the ith transducer unit may be set as: Δt (delta t) i ＝t 0 -t i . In this way, each transduction unit can reach the first central point at the same time, and the time is t i +Δt i ＝t 0 。
When determining the value of the subfrequency corresponding to the ith transduction unit, the modulation frequency corresponding to the ultrasonic control signal can be used as the reference frequency f 0 For example f 0 =1 MHz, then the sub-frequency value f corresponding to the i-th transducer element i ＝K*(1/s i )*f 0 Where K is an adjustment factor, a specific value can be set between 0.5 and 50.
Alternatively, the sub-intensity values may be determined in accordance with the manner in which the sub-frequency values are determined.
Alternatively, it is possible to rely on the specific waveform period and t 0 The initial phase of the transducer unit is determined and will not be described in detail herein.
Alternatively, the delay time, the sub-frequency value, the sub-intensity value, and the initial phase corresponding to the alternating electric field signal may be determined by referring to a manner of determining the delay time, the sub-frequency value, the sub-intensity value, and the initial phase corresponding to the ultrasonic signal, which are not limited herein.
In the embodiment of the application, the transmitting time, the initial phase, the sub-frequency value or the sub-intensity value and the like of each transduction unit are controlled according to the distance between each transduction unit in the transduction unit array and the first center point of the target object under the body surface, wherein the transmitting time is sequentially decreased: the transducer far from the first center point works first and the transducer near the first center point works later, so that the phase difference between ultrasonic signals emitted by all the transducer units reaching the first center point is zero, ultrasonic signals emitted by all the transducer units can be overlapped at the first center point to form a focused ultrasonic field, and the emission efficiency of the ultrasonic signals is improved.
Alternatively, when the feedback signal is changed, the frequency value and the intensity value corresponding to each transducer unit may also be updated in the same manner.
In some possible embodiments, the control signal generation module generating the control signal comprises:
generating an electric field control signal with the working time being the first working time and generating an ultrasonic control signal with the working time being the second working time; the first working time and the second working time have no intersection on a time axis;
the signal working period comprises a time period corresponding to first working time and a time period corresponding to second working time, and in the signal working period, the time period corresponding to the first working time is positioned before the time period corresponding to the second working time on a time axis.
In this embodiment of the present application, the first working time and the second working time may be the same or different.
Alternatively, in some possible embodiments, the first working time and the second working time are equal and are each 1 minute.
Alternatively, in some possible embodiments, the first working time is less than the second working time, and the first working time is 5 minutes and the second working time is 18 hours.
In the signal working period, the time period corresponding to the first working time is positioned before the time period corresponding to the second working time on a time axis, namely, in one signal working period, when a signal is output through the transducer, an alternating electric field signal of the first working time is output first, and then an ultrasonic signal of the second working time is output.
In the embodiment of the application, the alternating electric field signals and the focused ultrasonic signals with alternating time sequences are output to the body surface, so that when the signal output device is applied to a medical instrument, normal biological tissues are not damaged while tumors are eliminated.
In some possible embodiments, the control signal generating module adjusts the control signal according to a pixel difference value between images obtained by converting the feedback signals of two adjacent times, including:
Determining the area variation of a target object positioned under the body surface according to the pixel difference value;
and adjusting the first working time or the second working time according to the area variation and the temperature value.
Alternatively, the ablation condition of the target object may be determined according to the area variation amount of the target object.
As an example, when the first operating time or the second operating time is adjusted, if the area becomes smaller, the first operating time may be appropriately prolonged, and the second operating time may be reduced; if the area becomes larger, the first working time can be properly reduced, and the second working time can be prolonged.
In the embodiment of the application, the area variation of a target object positioned under the body surface is determined according to the pixel difference value between the images obtained by converting the adjacent feedback signals; and the first working time or the second working time is adjusted according to the area variation and the temperature value, so that the first working time of the alternating electric field signal or the second working time of the ultrasonic signal can be adjusted according to the real-time ablation condition of the target object, and the target object can be better ablated.
In some possible embodiments, the signal output device further comprises a temperature acquisition module comprising a temperature sensor;
The temperature sensor is arranged on one side of the piezoelectric ceramic layer facing the body surface, and is used for monitoring the temperature value of the target body surface area covered by the transducer and sending the temperature value to the control signal generation module.
The specific specification of the temperature sensor is not limited in the embodiment of the present application, as long as it can detect the temperature, and is not limited herein.
Optionally, the temperature value monitored by the temperature sensor may be sent to the control signal generating module through a cable that connects the electrical interface of the transduction patch with the signal transceiver interface of the host.
In the embodiment of the application, the temperature sensor is arranged on one side of the piezoelectric ceramic layer facing the body surface to monitor the temperature value of the target body surface area covered by the transducer, so that the body surface temperature can be monitored more accurately; and the temperature value is sent to the control signal generation module, so that the control signal generation module can conveniently adjust the control signal according to the real-time temperature of the body surface, and the damage to the skin state of the body surface is avoided.
In some possible embodiments, the temperature sensor is configured to perform a third on-time temperature monitoring operation;
the time period corresponding to the third working time, the time period corresponding to the first working time and the time period corresponding to the second working time are not intersected on a time axis;
The signal working period comprises a time period corresponding to a first working time, a time period corresponding to a second working time and a time period corresponding to a third working time.
Alternatively, the third working time may be the same as the first working time or the second working time, or may not be the same as the first working time or the second working time, which is not limited herein.
For example, the first working time, the second working time, and the third working time may be set to be 1 minute. The first working time may be set to 5 minutes, the second working time may be set to 18 hours, the third working time may be set to 1 minute, and so on.
In the embodiment of the application, the time period corresponding to the third working time of the temperature sensor is set, the time period corresponding to the first working time of the alternating electric field signal and the time period corresponding to the second working time of the ultrasonic signal are not intersected on the time axis, so that the temperature monitoring process of the temperature sensor can be avoided, and the interference is caused to the transmitting process of the alternating electric field signal or the ultrasonic signal.
In some possible embodiments, the control signal generating module adjusts the first operating time or the second operating time according to the area variation and the temperature value, including at least one of:
The area variation is larger than or equal to a first preset value, and the first working time and the second working time are kept unchanged;
the area variation is smaller than a first preset value, the temperature value is larger than or equal to a second preset value, and the first working time and the second working time are kept unchanged;
the area variation is smaller than the first preset value, the temperature value is smaller than the second preset value, and the second working time is increased.
Alternatively, the first preset value and the second preset value may be set according to actual conditions, for example, the first preset value may be set to 10%, and the second preset value may be set to 40 ℃.
Alternatively, since the ultrasonic signal affects the amount of change in the area of the target object located under the body surface, in the case where the amount of change in the area of the target object is low, the operating time of the ultrasonic signal may be appropriately increased to further reduce the area of the target object. Alternatively, the increase may be 1 minute based on the original second working time.
If the temperature value of the body surface is too high, the damage to the skin state of the body surface may be caused, so that the temperature value of the body surface needs to be considered when the working time of the control signal is controlled, and the damage to the skin state of the body surface is avoided.
Referring to fig. 8, in one signal period, the first operation time of the alternating electric field signal and the second operation time of the ultrasonic signal are equal and are each 1 minute. After receiving the feedback signal, if the area variation of the target object positioned under the body surface is more than or equal to 10%, keeping the first working time of the alternating electric field signal and the second working time of the ultrasonic signal to be 1 minute in one signal period; if the area variation of a target object positioned under the body surface is less than 10%, and the temperature value of the body surface temperature is more than or equal to 40 ℃, keeping the first working time of an alternating electric field signal and the second working time of an ultrasonic signal to be 1 minute in one signal period, and avoiding damage to the skin state of the body surface due to too high temperature; if the area variation of the target object positioned under the body surface is less than 10%, and the body surface temperature value is less than 40 ℃, keeping the first working time of the alternating electric field signal unchanged and increasing the second working time of the ultrasonic signal for 1 minute in one signal period, so as to further reduce the area of the target object, namely, in one signal period, the first working time of the alternating electric field signal is 1 minute, and the second working time of the ultrasonic signal is 2 minutes; this is looped until the target object disappears.
Referring to fig. 9, in one signal period, the first operating time of the alternating electric field signal is 18 hours, and the second operating time of the ultrasonic signal is 5 minutes. In a signal application period, firstly, an ultrasonic signal for 5 minutes can be applied, then an electric field signal for 18 hours is applied, a management system module determines the shape change of a target object according to a received feedback signal, if the area change of the target object positioned under the body surface is more than or equal to 10%, the focusing position of the ultrasonic signal can be adjusted according to the shape of the target object, and in the signal period, the first working time of the alternating electric field signal is kept to be 18 hours, and the second working time of the ultrasonic signal is kept to be 5 minutes;
if the area variation of a target object positioned under the body surface is less than 10%, and the temperature value of the body surface temperature is more than or equal to 40 ℃, the focusing position of an ultrasonic signal can be adjusted according to the shape of the target object, and the first working time of an alternating electric field signal is kept to be 18 hours in one signal period, and the second working time of the ultrasonic signal is kept to be 5 minutes, so that the damage to the skin state of the body surface caused by too high temperature is avoided;
if the area variation of the target object positioned under the body surface is less than 10%, and the body surface temperature value is less than 40 ℃, the focusing position of the ultrasonic signal can be adjusted according to the shape of the target object, the first working time of the alternating electric field signal is kept unchanged and the second working time of the ultrasonic signal is increased within one signal period, the increased time is 1 minute, so that the area of the target object is further reduced, namely, the first working time of the alternating electric field signal is kept to be 18 hours and the second working time of the ultrasonic signal is kept to be 6 minutes within one signal period; this is looped until the target object disappears.
In the embodiment of the application, the first working time of the alternating electric field signals and the second working time of the ultrasonic signals are adjusted according to the area change quantity of the target object and the temperature value of the body surface, so that the damage to the skin state of the body surface can be avoided while the area of the target object is reduced.
In some possible embodiments, the control signal generating module adjusts the first operating time or the second operating time according to the area variation and the temperature value, including at least one of:
the area variation in the first time section is larger than or equal to a first preset value, and the first working time and the second working time are kept unchanged in the second time section;
the area change amount in the first time section is smaller than a first preset value, the average temperature value in the first time section is smaller than a second preset value, the first working time is increased in the second time section, and the increasing time length is 1 minute;
the area variation in the first time section is smaller than a first preset value, the average temperature value in the first time section is larger than a second preset value, and the first working time and the second working time are kept unchanged in the second time section.
Alternatively, the first time section may be set to n signal periods in units of signal periods. Correspondingly, the second time section may be set to m signal periods in units of signal periods. Wherein m and n may be the same or different, which is not limited in the embodiment of the present application.
In the embodiment of the application, the first working time of the alternating electric field signal and the second working time of the ultrasonic signal are adjusted according to the area variation of the target object and the temperature value of the body surface in the first time section, and the signals are applied according to the adjusted first working time of the alternating electric field signal and the adjusted second working time of the ultrasonic signal in the second time section, so that the damage to the skin state of the body surface can be avoided while the area of the target object is reduced, and the repeated adjustment due to the error of the real-time monitoring value and unnecessary consumption of data processing amount can be avoided.
Optionally, when the signal control device provided by the embodiment of the application is applied to a tumor therapeutic apparatus, physical characteristics such as good tissue penetrability, focusability and the like of ultrasonic waves can be utilized, innumerable low-sound-intensity ultrasonic waves emitted from outside are accurately focused at a target tissue in vivo, the focal sound intensity is amplified by nearly ten thousand times, high temperature of 40-50 degrees is instantaneously generated, tumor cells are damaged once by utilizing thermal effects, cavitation effects, mechanical effects and the like of the focused ultrasonic waves, and irreversible coagulative necrosis can be generated on the target tissue for multiple times.
Based on the same principle as the signal output device provided in the embodiment of the present application, a signal output method is also provided in the embodiment of the present application, as shown in fig. 10, where the method includes:
Step 101, a control signal generating module in a control signal output device generates a control signal; the control signals comprise an electric field control signal and an ultrasonic control signal which are in time sequence alternating relation; the control signal generation module comprises two signal receiving and transmitting interfaces;
102, at least one pair of transducers in the control signal output device outputs signals according to the control signals;
wherein each transducer comprises a conductive layer, a piezoelectric ceramic layer and a gel layer which are stacked; the conducting layer carries out signal conversion on the electric field control signal to obtain an alternating electric field signal and outputs the alternating electric field signal; the piezoelectric ceramic layer performs signal conversion on the ultrasonic control signal to obtain an ultrasonic signal and outputs the ultrasonic signal; the gel layer is attached to the body surface; the piezoelectric ceramic layer is connected with the control signal generating module through the other signal receiving and transmitting interface.
The apparatus of the embodiments of the present application may perform the method provided by the embodiments of the present application, and implementation principles of the method are similar, and actions performed by each module in the apparatus of each embodiment of the present application correspond to steps in the method of each embodiment of the present application, and detailed functional descriptions of each module of the apparatus may be referred to in the corresponding method shown in the foregoing, which is not repeated herein.
Based on the same principle as the signal output apparatus and method provided in the embodiments of the present application, an electronic device (such as a server) is also provided in the embodiments of the present application, where the electronic device may include a memory, a processor, and a computer program stored on the memory, where the processor executes the computer program to implement:
a control signal generation module in the control signal output device generates a control signal; the control signals comprise an electric field control signal and an ultrasonic control signal which are in time sequence alternating relation; the control signal generation module comprises two signal receiving and transmitting interfaces;
at least one pair of transducers in the control signal output device outputs signals according to the control signals;
wherein each transducer comprises a conductive layer, a piezoelectric ceramic layer and a gel layer which are stacked; the conducting layer carries out signal conversion on the electric field control signal to obtain an alternating electric field signal and outputs the alternating electric field signal; the piezoelectric ceramic layer performs signal conversion on the ultrasonic control signal to obtain an ultrasonic signal and outputs the ultrasonic signal; the gel layer is attached to the body surface; the piezoelectric ceramic layer is connected with the control signal generating module through the other signal receiving and transmitting interface.
Referring to fig. 11, fig. 11 shows a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 11, the electronic device 1100 in the present embodiment may include: processor 1101, network interface 1104, and memory 1105, and further, the above-described electronic device 1100 may further include: an object interface 1103, and at least one communication bus 1102. Wherein communication bus 1102 is used to facilitate connection communications among the components. The object interface 1103 may include a Display screen (Display) and a Keyboard (Keyboard), and the optional object interface 1103 may further include a standard wired interface and a wireless interface. Network interface 1104 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1105 may be a high-speed RAM memory or a non-volatile memory (NVM), such as at least one magnetic disk memory. The memory 1105 may also optionally be at least one storage device located remotely from the processor 1101. As shown in fig. 11, an operating system, a network communication module, an object interface module, and a device control application may be included in the memory 1105 as one type of computer-readable storage medium.
In the electronic device 1100 shown in fig. 11, the network interface 1104 may provide network communication functionality; while object interface 1103 is primarily an interface for providing input to objects; and the processor 1101 may be configured to invoke the device control application stored in the memory 1105 to implement:
in some possible embodiments, the processor 1101 is configured to:
it should be appreciated that in some possible embodiments, the processor 1101 may be a central processing unit (central processing unit, CPU), which may also be other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), off-the-shelf programmable gate arrays (field-programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The memory may include read only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store information of the device type.
In a specific implementation, the electronic device 1100 may execute, through each functional module built in the electronic device, an implementation manner provided by each step in fig. 10, and specifically, the implementation manner provided by each step may be referred to, which is not described herein again.
The embodiments of the present application further provide a computer readable storage medium, where a computer program is stored and executed by a processor to implement the method provided by each step in fig. 10, and specifically refer to the implementation manner provided by each step, which is not described herein again.
The computer readable storage medium may be the signal output apparatus provided in any one of the foregoing embodiments or an internal storage unit of the electronic device, for example, a hard disk or a memory of the electronic device. The computer readable storage medium may also be an external storage device of the electronic device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card (flash card) or the like, which are provided on the electronic device. The computer readable storage medium may also include a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (random access memory, RAM), or the like. Further, the computer-readable storage medium may also include both an internal storage unit and an external storage device of the electronic device. The computer-readable storage medium is used to store the computer program and other programs and data required by the electronic device. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
Embodiments of the present application provide a computer program product comprising a computer program for executing the method provided by the steps of fig. 10 by a processor.
The terms "first," "second," and the like in the claims and specification and drawings of this application are used for distinguishing between different objects and not for describing a particular sequential order.
Furthermore, as used herein, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless expressly stated otherwise. The terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or electronic device that comprises a list of steps or elements is not limited to the list of steps or elements but may, alternatively, include other steps or elements not listed or inherent to such process, method, article, or electronic device.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments. The term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The foregoing disclosure is only illustrative of the preferred embodiments of the present application and is not to be construed as limiting the scope of the claims, and therefore, equivalent variations in terms of the claims are intended to be included herein.
Claims (18)
1. A signal output apparatus, the apparatus comprising:
the control signal generation module is used for generating a control signal; the control signals comprise an electric field control signal and an ultrasonic control signal which are in time sequence alternating relation; the control signal generation module comprises two signal receiving and transmitting interfaces;
at least one transduction patch including at least one pair of transducers, each transducer including a conductive layer, a piezoelectric ceramic layer, and a gel layer, which are stacked; the conductive layer is used for carrying out signal conversion on the electric field control signal to obtain an alternating electric field signal and outputting the alternating electric field signal; the piezoelectric ceramic layer is used for carrying out signal conversion on the ultrasonic control signal to obtain an ultrasonic signal and outputting the ultrasonic signal; the gel layer is used for attaching the signal output device to a body surface; the piezoelectric ceramic layer is connected with the control signal generation module through the other signal receiving and sending interface.
2. The signal output device according to claim 1, wherein,
the piezoelectric ceramic layer is also used for isolating current conduction between the transducer in the transducer pair and the body surface in the process of signal conversion of the electric field control signal by the conductive layer.
3. The signal output device according to claim 1, wherein,
the transducer is also used for receiving a feedback signal aiming at the ultrasonic signal and sending the feedback signal to the control signal generation module through a signal receiving-sending interface corresponding to the piezoelectric ceramic layer;
the control signal generation module is further configured to: performing acoustic image conversion on the feedback signal; and adjusting the control signal according to the pixel difference value between the images obtained by converting the adjacent feedback signals.
4. A signal output device in accordance with claim 3 wherein said control signal generation module generating a control signal comprises:
generating the electric field control signal with the working time being the first working time and generating the ultrasonic control signal with the working time being the second working time; the first working time and the second working time have no intersection on a time axis;
The signal working period comprises a time period corresponding to the first working time and a time period corresponding to the second working time, and the time period corresponding to the first working time is positioned before the time period corresponding to the second working time on a time axis in the signal working period.
5. The signal output device of claim 4, further comprising a temperature acquisition module comprising a temperature sensor;
the temperature sensor is arranged on one side of the piezoelectric ceramic layer facing the body surface, and is used for monitoring the temperature value of the target body surface area covered by the transducer and sending the temperature value to the control signal generation module.
6. The signal output device according to claim 5, wherein the control signal generating module adjusts the control signal according to a pixel difference between images obtained by converting the feedback signals of two adjacent times, comprising:
determining the area variation of a target object positioned under the body surface according to the pixel difference value;
and adjusting the first working time or the second working time according to the area variation and the temperature value.
7. The signal output device according to claim 6, wherein the control signal generation module adjusts the first or second operating time according to the area variation and the temperature value, including at least one of:
the area variation is larger than or equal to a first preset value, and the first working time and the second working time are kept unchanged;
the area variation is smaller than a first preset value, the temperature value is larger than or equal to a second preset value, and the first working time and the second working time are kept unchanged;
the area variation is smaller than a first preset value, the temperature value is smaller than a second preset value, and the second working time is increased.
8. The signal output device of claim 6 wherein the first and second operating times are equal and are each 1 minute.
9. The signal output device of claim 6 wherein the first operating time is less than the second operating time and the first operating time is 5 minutes and the second operating time is 18 hours.
10. The signal output device according to claim 8 or 9, wherein the control signal generation module adjusts the first operating time or the second operating time according to the area variation amount and the temperature value, including at least one of:
The area variation in the first time section is larger than or equal to a first preset value, and the first working time and the second working time are kept unchanged in the second time section;
the area change amount in the first time section is smaller than a first preset value, the average temperature value in the first time section is smaller than a second preset value, the first working time is increased in the second time section, and the increasing time is 1 minute;
the area variation in the first time section is smaller than a first preset value, the average temperature value in the first time section is larger than a second preset value, and the first working time and the second working time are kept unchanged in the second time section.
11. The signal output device according to claim 10, wherein,
the temperature sensor is used for performing temperature monitoring operation of a third working time;
the time period corresponding to the third working time, the time period corresponding to the first working time and the time period corresponding to the second working time are not intersected on a time axis;
the signal working period comprises a time period corresponding to the first working time, a time period corresponding to the second working time and a time period corresponding to the third working time.
12. The signal output device according to any one of claims 5 to 9, wherein the control signal generation module is further configured to:
determining a first pixel value of a first image obtained by converting the sound wave image of the feedback signal;
determining a first depth value of a first center point of the target object according to the first pixel value;
determining the first depth value as a first distance between the transducer and the first center point;
and determining the frequency value and the intensity value of the control signal according to the first distance.
13. The signal output device of claim 12 wherein the transducer comprises an array of transducer cells, the array of transducer cells comprising at least two transducer cells;
the control signal generating module determines a frequency value and an intensity value of the control signal according to the first distance, and the control signal generating module comprises:
determining a second distance between each of the transducing elements and the first center point, and determining a longest distance of the second distances;
determining delay time and initial phase of the output sub-signals of the transduction units according to the distance difference between the second distance and the longest distance corresponding to each transduction unit;
Determining a sub-frequency value or a sub-intensity value corresponding to each transduction unit according to the second distance corresponding to each transduction unit;
all the sub-signals output by the transduction units reach the target object at the same time, and the phase reaching the target object is the peak phase.
14. The signal output device according to claim 13, wherein,
the shape of the transducer is a fan ring, and different transducers are arranged around a second center point of the transduction patch;
wherein the second center point overlaps the first center point when the transduction patch is attached to the body surface through the gel layer.
15. The signal output device of claim 14, wherein the control signal generation module is further configured to:
when the feedback signal is changed, the second pixel value of the second image corresponding to the updated feedback signal is redetermined;
determining a second depth value of a third center point of the target object according to the second pixel value;
determining the second depth value as a third distance between the transducer and the third center point;
and updating the frequency value and the intensity value of the control signal according to the third distance.
16. A method of outputting a signal, the method comprising:
a control signal generation module in the control signal output device generates a control signal; the control signals comprise an electric field control signal and an ultrasonic control signal which are in time sequence alternating relation; the control signal generation module comprises two signal receiving and transmitting interfaces;
controlling at least one transduction patch in the signal output device to output a signal according to the control signal;
the transducer patch comprises at least one pair of transducers, and each transducer comprises a conductive layer, a piezoelectric ceramic layer and a gel layer which are stacked; the conducting layer carries out signal conversion on the electric field control signal to obtain an alternating electric field signal and outputs the alternating electric field signal; the piezoelectric ceramic layer performs signal conversion on the ultrasonic control signal to obtain an ultrasonic signal and outputs the ultrasonic signal; the gel layer is attached to the body surface; the piezoelectric ceramic layer is connected with the control signal generation module through the other signal receiving and sending interface.
17. An electronic device comprising a processor and a memory, the processor and the memory being interconnected;
The memory is used for storing a computer program;
the processor is configured to perform the method of claim 16 when the computer program is invoked.
18. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, implements the method of claim 16.
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