Therapeutic apparatus and therapeutic apparatus monitoring method

Abstract

The invention relates to a therapeutic apparatus and a therapeutic apparatus monitoring method. The therapeutic apparatus comprises an ultrasonic therapeutic host and an ultrasonic transducer, wherein the ultrasonic transducer comprises a temperature sensor; the ultrasonic treatment host comprises an upper computer interaction module, a signal generation module, a power monitoring module and a temperature monitoring module; the upper computer interaction module is used for determining excitation parameters in response to parameter setting operation; the signal generation module is used for generating ultrasonic excitation signals according to the excitation parameters; the power monitoring module is used for monitoring the power value of the ultrasonic excitation signal and generating a first alarm signal under the condition that the power value meets a preset power condition; the temperature monitoring module is used for monitoring the temperature value of the ultrasonic transducer through the temperature sensor and generating a second alarm signal under the condition that the temperature value is larger than or equal to a first preset threshold value. By adopting the therapeutic instrument, the safety of the therapeutic instrument in the using process can be improved through a power monitoring mechanism and a temperature monitoring mechanism.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a therapeutic instrument and a method for monitoring the therapeutic instrument. Background Technology

[0002] With the rapid development of medical device technology, transcranial focused ultrasound (TUS) neuromodulation therapy devices have emerged specifically for treating neurological dysfunctions (e.g., Parkinson's disease, depression). TUS neuromodulation therapy, with its transcranial ultrasound technology capable of emitting ultrasound waves that penetrate the skull, and its advantages of non-invasiveness and high spatial precision, has become a research hotspot in the field of neuromodulation.

[0003] However, current transcranial focused ultrasound neuromodulation therapy devices have certain safety risks during use, which makes it difficult for them to better serve the treatment needs of patients with neurological dysfunction. Summary of the Invention

[0004] Therefore, it is necessary to provide a therapeutic instrument, a therapeutic instrument monitoring method, and a therapeutic instrument monitoring device that can improve the safety of the therapeutic instrument during use, in response to the above-mentioned technical problems.

[0005] In a first aspect, this application provides a therapeutic device, which includes an ultrasonic therapy host and an ultrasonic transducer, the ultrasonic transducer including a temperature sensor; the ultrasonic therapy host includes a host computer interaction module, a signal generation module, a power monitoring module and a temperature monitoring module;

[0006] The signal generation module is connected to the host computer interaction module, the ultrasonic transducer, the power monitoring module, and the temperature monitoring module, respectively. The temperature monitoring module is connected to the temperature sensor.

[0007] The host computer interaction module is used to respond to parameter setting operations and determine excitation parameters;

[0008] The signal generation module is used to generate ultrasonic excitation signals based on excitation parameters.

[0009] The power monitoring module is used to monitor the power value of the ultrasonic excitation signal and generate a first alarm signal when the power value meets the preset power conditions.

[0010] The temperature monitoring module is used to monitor the temperature value of the ultrasonic transducer through a temperature sensor, and generate a second alarm signal when the temperature value is greater than or equal to a first preset threshold.

[0011] Secondly, this application provides a method for monitoring a therapeutic device, applied to the therapeutic device described in any of the first aspects of this application, the method comprising:

[0012] In response to parameter setting operations, the excitation parameters are determined;

[0013] Generate ultrasonic excitation signals based on excitation parameters;

[0014] Monitor the power value of the ultrasonic excitation signal and generate a first alarm signal when the power value meets the preset power condition;

[0015] The temperature of the ultrasonic transducer is monitored by a temperature sensor, and a second alarm signal is generated when the temperature is greater than or equal to a first preset threshold.

[0016] Thirdly, this application also provides a therapeutic instrument monitoring device, comprising:

[0017] The parameter determination module is used to determine the excitation parameters in response to parameter setting operations;

[0018] The signal generation module is used to generate ultrasonic excitation signals based on the excitation parameters;

[0019] The power monitoring module is used to monitor the power value of the ultrasonic excitation signal and generate a first alarm signal when the power value meets the preset power conditions.

[0020] The temperature monitoring module is used to monitor the temperature value of the ultrasonic transducer through a temperature sensor, and generate a second alarm signal when the temperature value is greater than or equal to a first preset threshold.

[0021] The aforementioned therapeutic instrument, therapeutic instrument monitoring method, and therapeutic instrument monitoring device include an ultrasonic therapy host and an ultrasonic transducer, the ultrasonic transducer including a temperature sensor; the ultrasonic therapy host includes a host computer interaction module, a signal generation module, a power monitoring module, and a temperature monitoring module; the signal generation module is connected to the host computer interaction module, the ultrasonic transducer, the power monitoring module, and the temperature monitoring module respectively, and the temperature monitoring module is connected to the temperature sensor; the host computer interaction module is used to determine excitation parameters in response to parameter setting operations; the signal generation module is used to generate an ultrasonic excitation signal according to the excitation parameters; the power monitoring module is used to monitor the power value of the ultrasonic excitation signal and generate a first alarm signal when the power value meets a preset power condition; the temperature monitoring module is used to monitor the temperature value of the ultrasonic transducer through the temperature sensor and generate a second alarm signal when the temperature value is greater than or equal to a first preset threshold. Using the therapeutic instrument provided in this embodiment, because the power monitoring module provides a power monitoring mechanism and the temperature monitoring module provides a temperature monitoring mechanism, the power value and temperature value of the therapeutic instrument can be ensured to be within the normal range during use, significantly improving the safety of the therapeutic instrument during use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural block diagram of a therapeutic device in one embodiment;

[0024] Figure 2 This is a schematic diagram showing the position between an ultrasound transducer and a target point in a deep brain region in one embodiment.

[0025] Figure 3 This is a structural block diagram of another treatment device in one embodiment;

[0026] Figure 4 This is a flowchart illustrating the monitoring method for the therapeutic device in another embodiment;

[0027] Figure 5 This is a structural block diagram of the monitoring device for a therapeutic instrument in one embodiment. Detailed Implementation

[0028] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0030] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0031] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0032] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0033] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0034] like Figure 1 As shown, one embodiment of the therapeutic device includes an ultrasonic therapy host 12 and an ultrasonic transducer 14. The ultrasonic transducer 14 includes a temperature sensor 142. The ultrasonic therapy host 12 includes a host computer interaction module 122, a signal generation module 124, a power monitoring module 126, and a temperature monitoring module 128.

[0035] The signal generation module 124 is connected to the host computer interaction module 122, the ultrasonic transducer 14, the power monitoring module 126 and the temperature monitoring module 128 respectively. The temperature monitoring module 128 is connected to the temperature sensor 142.

[0036] The host computer interaction module 122 is used to determine the excitation parameters in response to parameter setting operations.

[0037] The signal generation module 124 is used to generate an ultrasonic excitation signal based on the excitation parameters.

[0038] The power monitoring module 126 is used to monitor the power value of the ultrasonic excitation signal and generate a first alarm signal when the power value meets the preset power conditions.

[0039] The temperature monitoring module 128 is used to monitor the temperature value of the ultrasonic transducer 14 through the temperature sensor 142, and generate a second alarm signal when the temperature value is greater than or equal to a first preset threshold.

[0040] Among these, the treatment device can be a transcranial focused ultrasound neuromodulation therapy device. A transcranial focused ultrasound neuromodulation therapy device refers to a medical device that uses low-intensity focused ultrasound waves to non-invasively modulate brain neural activity.

[0041] like Figure 2As shown, the ultrasound transducer 14 is used to convert the ultrasound excitation signal generated by the ultrasound therapy host 12 into ultrasound waves that modulate brain neural activity non-invasively based on the piezoelectric effect, so as to transmit the energy of the ultrasound waves through the skull 202 and to the deep brain target 204 of the user using the therapy device via transcranial focusing.

[0042] The host computer interaction module 122 is a module in the ultrasound therapy host that has human-computer interaction functionality. The host computer interaction module 122 has a human-computer interaction interface, allowing users to set parameters and monitor the treatment status of the device. The host computer interaction module 122 has a touchscreen, thus the human-computer interaction interface is a touchscreen interface, enabling human-computer interaction through the touch function of the touchscreen.

[0043] Optionally, the parameter setting operation can be the setting operation of parameters such as frequency, period, duty cycle, amplitude, treatment time, etc.

[0044] Optionally, the parameter settings can be determined based on the user's condition, physiological characteristics, and past treatment history. Optionally, the user's condition may include the type, severity, and course of the disease; the user's physiological characteristics may include the user's age, gender, and skull thickness; and the user's past treatment history may include the treatment methods previously received and their effects.

[0045] In a way that is easy to understand, the therapeutic device provided in this embodiment allows the user to set parameters independently in the host computer interaction module 122. As a result, the therapeutic device can take into account the individual differences of different users and make targeted and precise adjustments, so that the therapeutic effect provided by the therapeutic device is more targeted and provides better therapeutic effect for the user.

[0046] The excitation parameters are determined based on parameters input by the user to the host computer interaction module 122 through setting operations. They are used to generate the ultrasonic excitation signal that excites the ultrasonic transducer 14 to produce ultrasonic waves. In simple terms, the excitation parameters are time-series parameters that characterize the temporal characteristics of ultrasonic waves. The ultrasonic excitation signal is an electrical signal, which is sent to the ultrasonic transducer 14 so that the ultrasonic transducer 14 converts the ultrasonic excitation signal, which is in electrical form, into ultrasonic waves based on the piezoelectric effect.

[0047] Optionally, the signal generation module 124 can use a Field-Programmable Gate Array (FPGA) as the microcontroller unit (MCU) chip. When the signal generation module 124 uses an FPGA as its MCU chip, it can quickly configure and generate an ultrasonic excitation signal based on the excitation parameters. Therefore, even if the host computer interaction module 122 switches parameters, it can ensure that the parameter switching operation does not cause a delay in the generation of the ultrasonic excitation signal.

[0048] In an exemplary embodiment, the signal generation module 124 is used to generate an ultrasonic excitation signal according to the excitation parameters; the delay value from the generation of the ultrasonic excitation signal to the output of the ultrasonic excitation signal by the signal generation module 124 is less than or equal to a preset delay value; the signal generation module 124 uses an FPGA as the MCU chip.

[0049] Optionally, the accuracy of the temperature sensor 142 can be ±0.1℃. An accuracy of ±0.1℃ means that the maximum error between the temperature value measured by the temperature sensor 142 and the actual temperature value will not exceed 0.1℃. For example, when the actual temperature is 25.0℃, the temperature value measured by the temperature sensor 142 will be between 24.9℃ and 25.1℃. The accuracy of the temperature sensor 142 refers to its measurement accuracy.

[0050] Optionally, the temperature sensor 142 can be located inside the probe in the ultrasonic transducer 14 and attached to the surface of the piezoelectric ceramic. Attaching the temperature sensor 142 to the piezoelectric ceramic surface inside the probe allows the temperature sensor 142 to directly monitor the temperature changes of the piezoelectric ceramic during the use of the therapeutic device. This enables the temperature sensor 142 to provide accurate temperature feedback, ensuring the accuracy and real-time performance of the temperature values ​​measured by the temperature sensor 142.

[0051] Optionally, the power monitoring module 126 monitors the power value of the ultrasonic excitation signal in real time; in other words, the power value of the ultrasonic excitation signal monitored by the power monitoring module 126 is a real-time power value.

[0052] Optionally, the temperature monitoring module 128 monitors the temperature value of the ultrasonic transducer 14 in real time; in other words, the temperature value of the ultrasonic transducer 14 monitored by the temperature monitoring module 128 is a real-time temperature value.

[0053] In one exemplary embodiment, the first preset threshold is greater than or equal to 43°C.

[0054] In one exemplary embodiment, the first preset threshold is positively correlated with the ambient temperature at the location of the therapeutic device.

[0055] In another exemplary embodiment, the first preset threshold is the sum of the ambient temperature at the location of the therapeutic device and a fixed temperature increment.

[0056] Optionally, the fixed temperature increment can be 10℃, 15℃, 18℃ or other temperature values. Based on this, the first preset threshold can be (ambient temperature + 10)℃, (ambient temperature + 15)℃, (ambient temperature + 18)℃ or other temperature values.

[0057] In one exemplary embodiment, the power monitoring module 126 is used to monitor the power value of the ultrasonic excitation signal in real time and generate a first alarm signal when the power value meets a preset power condition.

[0058] In an exemplary embodiment, the temperature monitoring module 128 is used to monitor the temperature value of the ultrasonic transducer 14 in real time through the temperature sensor 142, and generate a second alarm signal when the temperature value is greater than or equal to a first preset threshold.

[0059] Optionally, after generating the first alarm signal, the power monitoring module 126 can cut off its own operating circuit to stop the ultrasonic transducer 14 from working. After the ultrasonic transducer 14 stops working, it will no longer transmit ultrasound waves to the target point in the deep brain region.

[0060] Optionally, after generating the second alarm signal, the temperature monitoring module 128 can cut off its own working circuit to stop the ultrasonic transducer 14 from working.

[0061] The aforementioned therapeutic device includes an ultrasonic therapy host and an ultrasonic transducer, the ultrasonic transducer including a temperature sensor; the ultrasonic therapy host includes a host computer interaction module, a signal generation module, a power monitoring module, and a temperature monitoring module; the signal generation module is connected to the host computer interaction module, the ultrasonic transducer, the power monitoring module, and the temperature monitoring module respectively, and the temperature monitoring module is connected to the temperature sensor; the host computer interaction module is used to determine excitation parameters in response to parameter setting operations; the signal generation module is used to generate an ultrasonic excitation signal according to the excitation parameters; the power monitoring module is used to monitor the power value of the ultrasonic excitation signal and generate a first alarm signal when the power value meets a preset power condition; the temperature monitoring module is used to monitor the temperature value of the ultrasonic transducer through the temperature sensor and generate a second alarm signal when the temperature value is greater than or equal to a first preset threshold. Using the therapeutic device provided in this embodiment, because the power monitoring module provides a power monitoring mechanism and the temperature monitoring module provides a temperature monitoring mechanism, the power and temperature values ​​of the therapeutic device can be kept within normal ranges during use, significantly improving the safety of the therapeutic device during use.

[0062] In an exemplary embodiment, the ultrasound therapy host 12 further includes a database, which is connected to the host computer interaction module 122 and the signal generation module 124 respectively; the host computer interaction module 122 is also used to determine the parameters corresponding to the disease type in the database according to the mapping relationship based on the disease type in response to the setting operation of the disease type; the mapping relationship includes the correspondence between multiple disease types and parameters, and there is a one-to-one correspondence between disease types and parameters.

[0063] In this embodiment, the host computer interaction module not only allows users to set parameters themselves through the human-computer interaction interface, but also provides users with different disease types for selection within the interface. This allows for direct parameter determination based on the corresponding disease type. In other words, the host computer interaction module can implement both a "self-setting mode" for parameters and a "scheme selection mode" to directly determine parameters based on the disease type. This significantly improves the targeting and flexibility of the treatment device, making parameters more tailored to individual user differences and reducing the difficulty of parameter setting through the pre-defined correspondence between disease types and parameters.

[0064] In an exemplary embodiment, the signal generation module 124 is specifically used to generate time series parameters based on excitation parameters; and to generate an ultrasonic excitation signal based on the time series parameters.

[0065] Among them, time series parameters refer to parameters that describe the characteristics and variation patterns of ultrasonic excitation signals in the time dimension. Time series parameters can be used to define the waveform shape, duration, repetition pattern, etc. of ultrasonic excitation signals to control the generation and transmission of ultrasonic excitation signals.

[0066] In this embodiment, the signal generation module can be used to generate time-series parameters based on the excitation parameters. Then, an ultrasound excitation signal is generated based on the time-series parameters. This ensures that the ultrasound excitation signal is accurately generated based on the excitation parameters, that the signal characteristics of the ultrasound excitation signal correspond to the excitation signal, and consequently, that the therapeutic device can accurately perform transcranial focused ultrasound neuromodulation therapy.

[0067] In one exemplary embodiment, the time series parameters include the frequency parameter of the ultrasonic excitation signal and the duty cycle parameter of the pulse period.

[0068] The frequency parameters range from 0.3MHz to 5MHz, and the duty cycle parameters range from 1% to 99%.

[0069] Among these, the frequency parameter refers to the parameter in the time series that determines the vibration frequency of the ultrasonic wave. The frequency parameter affects the penetration depth of the ultrasonic wave.

[0070] The pulse period refers to the time interval between two consecutive pulse signals. The length of the pulse period affects the repetition frequency of ultrasound.

[0071] The duty cycle parameter of a pulse period refers to the proportion of the high-level time of a pulse signal to the entire pulse period. The duty cycle parameter determines the proportion of the high-level time of the pulse signal and affects the energy transfer efficiency of ultrasound.

[0072] Optionally, the accuracy of the duty cycle parameter of the pulse period can be ±0.1%. The accuracy of the duty cycle parameter of the pulse period is the adjustment accuracy.

[0073] Optionally, the accuracy of the pulse period can be ±10 ns. The accuracy of the pulse period is the adjustment accuracy.

[0074] In this embodiment, the accuracy of the duty cycle parameter of the pulse period and the accuracy of the pulse period are both high. Therefore, it can be ensured that the ultrasound of the therapeutic device provided in this embodiment has high-precision targeting capability, and the stimulation effect on deep brain target points is relatively stable and has high stimulation accuracy. It can meet the requirements of microsecond-level pulse interval and broadband frequency adjustment, and overcome the poor stimulation effect caused by the difficulty of traditional therapeutic devices in achieving high-resolution parameter control.

[0075] In one exemplary embodiment, such as Figure 3As shown, the signal generation module 124 includes a main control unit 1242 and a direct digital frequency synthesizer 1244. The main control unit 1242 is connected to the host computer interaction module 122, the direct digital frequency synthesizer 1244 and the ultrasonic transducer 14 respectively.

[0076] The main control unit 1242 is used to generate time series parameters based on the excitation parameters.

[0077] A direct digital frequency synthesizer 1244 is used to generate an ultrasonic excitation signal based on time-series parameters; the signal-to-noise ratio of the ultrasonic excitation signal is greater than 80 dB.

[0078] The full name of the Direct Digital Frequency Synthesizer 1244 is Direct Digital Frequency Synthesizer, abbreviated as DDS.

[0079] The signal-to-noise ratio (SNR) of an ultrasonic excitation signal is the ratio between the power value of the ultrasonic excitation signal and the power value of the noise, expressed in decibels (dB).

[0080] The direct digital frequency synthesizer 1244 includes a phase accumulator and a sine wave lookup table. The phase accumulator adds a frequency control word to the current phase value in each pulse cycle to generate a new phase value. The sine wave lookup table is a memory that stores sine wave sample values. It uses the phase code output from the phase accumulator as a lookup address to output the corresponding sine wave sample value based on that lookup address. Based on this, the direct digital frequency synthesizer 1244 can achieve high-frequency signal synthesis without phase accumulation error to generate ultrasonic excitation signals with a signal-to-noise ratio greater than 80 dB.

[0081] In this embodiment, the signal generation module includes a main control unit and a direct digital frequency synthesizer, thereby enabling the generation of an ultrasonic excitation signal with a high signal-to-noise ratio through the direct digital frequency synthesizer. A high signal-to-noise ratio indicates that the ultrasonic excitation signal has a low degree of noise interference, which in turn enables the ultrasonic excitation signal to have high reliability and high purity, so as to ensure that the ultrasound has a more accurate stimulation effect on the target points in the deep brain region, that is, the therapeutic device has a better therapeutic effect.

[0082] In an exemplary embodiment, the ultrasound therapy host 12 further includes a power amplifier 130, which is connected to the signal generation module 124 and the ultrasound transducer 14, respectively.

[0083] The signal generation module 124 is used to generate an initial excitation signal based on the excitation parameters.

[0084] Power amplifier 130 is used to amplify the initial excitation signal to obtain an ultrasonic excitation signal.

[0085] The power amplifier 130 has a gain of 40dB or greater and a bandwidth of 0.3 MHz to 5 MHz. Based on the gain principle of the power amplifier 130, a gain of 40dB or greater indicates a power amplification factor of 10,000 times. That is to say, the power value of the ultrasonic excitation signal is more than 10,000 times the power value of the initial excitation signal. The power amplifier 130 can amplify a portion of the sub-signals in the frequency range of 0.3 MHz to 5 MHz in the initial excitation signal. In other words, the power amplifier 130 can process and amplify a signal frequency range of 0.3 MHz to 5 MHz.

[0086] Optionally, the ultrasound therapy host 12 may also include a filter, which is connected to the power amplifier 130 and the ultrasound transducer 14 respectively. The filter is used to filter the initial excitation signal after power amplification to obtain an ultrasound excitation signal.

[0087] In this embodiment, through the coordinated operation of the signal generation module and the power amplifier, an ultrasonic excitation signal after power amplification is obtained based on the excitation parameters. This makes the ultrasonic excitation signal to be converted into ultrasound by the ultrasonic transducer highly accurate, thereby further ensuring the therapeutic effect of the treatment device.

[0088] Meanwhile, in this embodiment, on the one hand, the power amplifier has a large gain, resulting in a high accuracy of the obtained ultrasonic excitation signal; on the other hand, the power amplifier can amplify a portion of the initial excitation signal with a frequency range of 0.3MHz to 5MHz, ensuring that the power amplifier has good amplification characteristics for this portion of the sub-signals. Based on this, it can be ensured that the therapeutic device can effectively generate ultrasound within the required frequency range to meet the treatment needs of various disease types.

[0089] In the case where the signal generation module 124 of the therapeutic instrument includes a direct digital frequency synthesizer 1244, the direct digital frequency synthesizer 1244 is connected to the power amplifier 130.

[0090] In this embodiment, the therapeutic device, with the power amplifier 130 connected to both the signal generation module 124 and the ultrasonic transducer 14, achieves a higher degree of integration among these components. This avoids the high response delay issues caused by the dispersed design of different modules in traditional therapeutic devices. The highly integrated modular design of the therapeutic device ensures low response delays for each module, thereby guaranteeing high stability and safety of the ultrasonic stimulation effect.

[0091] In an exemplary embodiment, the ultrasound therapy host 12 further includes an impedance matching device connected to the power amplifier 130 and the ultrasound transducer 14, respectively; the impedance matching device is used to match the impedance of the power amplifier and the impedance of the ultrasound transducer.

[0092] Matching the impedance of the power amplifier and the impedance of the ultrasonic transducer can reduce the signal reflection phenomenon of the ultrasonic excitation signal being reflected back to the ultrasonic transducer 14 during transmission, that is, it can reduce the reverse power value reflected back to the ultrasonic transducer 14, thereby improving the transmission efficiency of the ultrasonic excitation signal to the ultrasonic transducer 14.

[0093] In an exemplary embodiment, the ultrasound therapy host 12 further includes a power module 132, which is connected to the host computer interaction module 122, the signal generation module 124, and the power amplifier 130.

[0094] The power supply module 132 is used to convert the AC power supply signal provided by the external power supply module into a DC power supply signal, and provide the DC power supply signal to the host computer interaction module 122, the signal generation module 124 and the power amplifier 130 respectively, so that the host computer interaction module 122, the signal generation module 124 and the power amplifier 130 can operate at their respective voltage levels.

[0095] In one exemplary embodiment, such as Figure 3 As shown, the power module 132 is also connected to the power monitoring module 126 and the temperature monitoring module 128 respectively.

[0096] The power monitoring module 126 is also used to generate a first stop signal after generating a first alarm signal; and to send the first stop signal to the power module 132. The first stop signal is used by the power module 132 to control the power to shut down so that the ultrasonic transducer 14 stops working.

[0097] The temperature monitoring module 128 is also used to generate a second stop signal after generating a second alarm signal; and to send the second stop signal to the power module 132. The second stop signal is used by the power module 132 to control the power to shut down so that the ultrasonic transducer 14 stops working.

[0098] In an exemplary embodiment, the ultrasound therapy host 12 further includes a dual directional coupler 134, which is connected to the power amplifier 130 and the ultrasound transducer 14, respectively.

[0099] The dual directional coupler 134 is used to extract and separate the ultrasonic excitation signal through the coupling structure to obtain a first detection signal with a positive power value and a second detection signal with a negative power value.

[0100] The power monitoring module 126 is specifically used to determine that the power value of the ultrasonic excitation signal meets the preset power condition when the difference between the power value of the first detection signal and the power value of the second detection signal meets the preset difference condition, or when the power value of the second detection signal is greater than or equal to the second preset threshold.

[0101] In an exemplary embodiment, the preset difference condition represents a difference within ±5% of the target power value, and the second preset threshold is determined based on the power value of the first detection signal.

[0102] The first detection signal is a signal with a positive power value output from the power amplifier 130 during transmission, and the second detection signal is a signal with a negative power value reflected back to the power amplifier 130 during transmission. The difference between the power values ​​of the first and second detection signals is positive.

[0103] The target power value is the power level that the user desires the ultrasonic excitation signal to maintain. Optionally, the target power value can be a parameter that the user sets through a setting operation in the human-machine interface of the host computer interaction module 122.

[0104] Optionally, the target power value can be 100W, 150W, or other values.

[0105] Optionally, the second preset threshold can be a preset percentage of the power value of the first detected signal. Optionally, the preset percentage can be 50%, 60%, or other percentages. Based on this, for example, the second preset threshold can be 50% of the power value of the first detected signal.

[0106] The power value of the electrical signal corresponding to the ultrasound waves transmitted to the target point in the deep brain region before being converted into ultrasound waves is the difference between the power value of the first detection signal and the power value of the second detection signal.

[0107] In this embodiment, the ultrasonic excitation signal is extracted and separated using a dual-directional coupler coupling structure to obtain a first detection signal with a positive power value and a second detection signal with a negative power value. This allows the power monitoring module to determine whether the power value of the ultrasonic excitation signal meets a preset power condition based on the power values ​​of the first and second detection signals. By ensuring the accuracy of the matching between the power value of the ultrasonic excitation signal and the preset power condition, the accuracy of the first alarm signal generation is ensured, thereby significantly improving the safety of the therapeutic device during use.

[0108] In one exemplary embodiment, the signal generation module 124 is specifically configured to generate an ultrasonic excitation signal based on the input voltage value and excitation parameters.

[0109] The power monitoring module 126 is specifically used to monitor the power value of the first detection signal and the power value of the second detection signal; determine the difference between the power value of the first detection signal and the power value of the second detection signal; and adjust the input voltage value based on the matching result between the difference and the target power value.

[0110] The power monitoring module 126 adjusts the input voltage value so that the difference between the power value of the first detection signal and the power value of the second detection signal of the ultrasonic excitation signal generated by the signal generation module 124 can be maintained within ±5% of the target power value.

[0111] In an exemplary embodiment, the dual directional coupler 134 is specifically used to extract and separate the ultrasonic excitation signal through the coupling structure based on a preset coupling degree and a preset insertion loss, to obtain a first detection signal with a positive power value and a second detection signal with a negative power value.

[0112] The preset coupling degree is greater than or equal to 30dB, and the preset insertion loss is less than 0.5dB.

[0113] The preset coupling degree ensures that the dual directional coupler 134 has high efficiency in separating the ultrasonic excitation signal into a first detection signal and a second detection signal. It is easy to understand that the higher the coupling degree during signal separation, the more signal energy is coupled to the coupling port, meaning a better separation effect of the ultrasonic excitation signal into the first and second detection signals.

[0114] The preset insertion loss ensures high transmission efficiency of the ultrasonic excitation signal when passing through the dual directional coupler 134, resulting in low power loss of the ultrasonic excitation signal during transmission. Consequently, the signal integrity of both the first detection signal and the second detection signal obtained after signal separation of the ultrasonic excitation signal are high.

[0115] In an exemplary embodiment, the signal generation module 124 is further configured to generate an original pulse signal with a corresponding power value and a pulse synchronization signal with a corresponding power value according to a set voltage value; the voltage accuracy is ±1mV and the pulse width adjustment accuracy is ±1μs.

[0116] The original pulse signal is used to drive the power amplifier 130 to amplify the initial excitation signal to obtain the ultrasonic excitation signal, and to drive the ultrasonic transducer 14 to convert the ultrasonic excitation signal into ultrasonic waves. The signal characteristics of the original pulse signal (exemplarily, signal characteristics may be voltage, pulse width, etc.) directly affect the ultrasonic excitation signal.

[0117] The pulse synchronization signal refers to the signal that is synchronized with the original pulse signal. It is used to synchronize modules such as the power amplifier 130 in the ultrasound therapy host 12 to ensure the coordinated operation of each module in the ultrasound therapy host 12.

[0118] It is understood that the above-mentioned therapeutic device can also take other forms, not limited to those mentioned in the above embodiments, as long as it can achieve the function of improving the safety of the therapeutic device during use.

[0119] Based on the same inventive concept, this application also provides a method for monitoring a therapeutic device, applicable to the therapeutic device described in any of the above-described embodiments, the method comprising the following steps 402-408:

[0120] 402, in response to parameter setting operations, determine the excitation parameters.

[0121] 404, generate ultrasonic excitation signal based on excitation parameters.

[0122] 406. Monitor the power value of the ultrasonic excitation signal and generate a first alarm signal when the power value meets the preset power condition.

[0123] 408. The temperature value of the ultrasonic transducer is monitored by a temperature sensor, and a second alarm signal is generated when the temperature value is greater than or equal to a first preset threshold.

[0124] It should be noted that the solution provided by the monitoring method for this therapeutic instrument is similar to the solution described in the therapeutic instrument above. Therefore, the specific limitations in the one or more embodiments of the monitoring method for this therapeutic instrument provided above can be found in the limitations of the therapeutic instrument above, and will not be repeated here.

[0125] In an exemplary embodiment, the above-mentioned generation of ultrasonic excitation signal based on excitation parameters includes: generating time series parameters based on excitation parameters; and generating ultrasonic excitation signal based on time series parameters.

[0126] In an exemplary embodiment, the above-mentioned generation of an ultrasonic excitation signal based on excitation parameters includes: generating time series parameters based on excitation parameters; generating an ultrasonic excitation signal based on the time series parameters; and the signal-to-noise ratio of the ultrasonic excitation signal is greater than 80dB.

[0127] In an exemplary embodiment, the above-mentioned generation of an ultrasonic excitation signal based on excitation parameters includes: generating an initial excitation signal based on the excitation parameters; and amplifying the power of the initial excitation signal to obtain an ultrasonic excitation signal.

[0128] In an exemplary embodiment, the above method further includes: extracting and separating the ultrasonic excitation signal through a coupling structure to obtain a first detection signal with a positive power value and a second detection signal with a negative power value;

[0129] The above-mentioned monitoring of the power value of the ultrasonic excitation signal and generating a first alarm signal when the power value meets a preset power condition includes: determining that the power value of the ultrasonic excitation signal meets the preset power condition when the difference between the power value of the first detection signal and the power value of the second detection signal meets a preset difference condition, or when the power value of the second detection signal is greater than or equal to a second preset threshold, so as to generate a first alarm signal.

[0130] In an exemplary embodiment, the above-described extraction and separation processing of the ultrasonic excitation signal through the coupling structure to obtain a first detection signal with a positive power value and a second detection signal with a negative power value includes: extracting and separating the ultrasonic excitation signal through the coupling structure based on a preset coupling degree and a preset insertion loss to obtain a first detection signal with a positive power value and a second detection signal with a negative power value; wherein the preset coupling degree is greater than or equal to 30dB and the preset insertion loss is less than 0.5dB.

[0131] Based on the same inventive concept, this application also provides a therapeutic instrument monitoring device for implementing the therapeutic instrument monitoring method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more therapeutic instrument monitoring device embodiments provided below can be found in the limitations of the therapeutic instrument monitoring method described above, and will not be repeated here.

[0132] In one exemplary embodiment, such as Figure 5 As shown, a therapeutic instrument monitoring device is provided, comprising: a parameter determination module 502, a signal generation module 504, a power monitoring module 506, and a temperature monitoring module 508, wherein:

[0133] The parameter determination module 502 is used to determine the excitation parameters in response to the parameter setting operation.

[0134] The signal generation module 504 is used to generate an ultrasonic excitation signal based on the excitation parameters.

[0135] The power monitoring module 506 is used to monitor the power value of the ultrasonic excitation signal and generate a first alarm signal when the power value meets the preset power conditions.

[0136] The temperature monitoring module 508 is used to monitor the temperature value of the ultrasonic transducer through a temperature sensor, and generate a second alarm signal when the temperature value is greater than or equal to a first preset threshold.

[0137] In an exemplary embodiment, the signal generation module 504 is specifically used to generate an ultrasonic excitation signal based on the excitation parameters, including: generating time series parameters based on the excitation parameters; and generating an ultrasonic excitation signal based on the time series parameters.

[0138] In an exemplary embodiment, the signal generation module 504 is specifically used to generate time series parameters based on the excitation parameters; generate an ultrasonic excitation signal based on the time series parameters; and the signal-to-noise ratio of the ultrasonic excitation signal is greater than 80dB.

[0139] In an exemplary embodiment, the signal generation module 504 is specifically used to generate an initial excitation signal based on excitation parameters; and to amplify the power of the initial excitation signal to obtain an ultrasonic excitation signal.

[0140] In one exemplary embodiment, such as Figure 5 As shown, the above-mentioned device also includes a dual-directional coupling module 510, which is used to extract and separate the ultrasonic excitation signal through the coupling structure to obtain a first detection signal with a positive power value and a second detection signal with a negative power value. The power monitoring module 506 is specifically used to determine that the power value of the ultrasonic excitation signal meets the preset power condition when the difference between the power value of the first detection signal and the power value of the second detection signal meets the preset difference condition, or when the power value of the second detection signal is greater than or equal to a second preset threshold, so as to generate a first alarm signal.

[0141] In an exemplary embodiment, the dual-directional coupling module 510 is specifically used to extract and separate the ultrasonic excitation signal through the coupling structure based on a preset coupling degree and a preset insertion loss to obtain a first detection signal with a positive power value and a second detection signal with a negative power value; wherein, the preset coupling degree is greater than or equal to 30dB and the preset insertion loss is less than 0.5dB.

[0142] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0143] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0144] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A therapeutic device, characterized in that, The therapeutic device includes an ultrasonic therapy host and an ultrasonic transducer, the ultrasonic transducer including a temperature sensor; the ultrasonic therapy host includes a host computer interaction module, a signal generation module, a power monitoring module, and a temperature monitoring module; The signal generation module is connected to the host computer interaction module, the ultrasonic transducer, the power monitoring module and the temperature monitoring module respectively, and the temperature monitoring module is connected to the temperature sensor; The host computer interaction module is used to determine the excitation parameters in response to the parameter setting operation; The signal generation module is used to generate an ultrasonic excitation signal based on the excitation parameters; The power monitoring module is used to monitor the power value of the ultrasonic excitation signal and generate a first alarm signal when the power value meets a preset power condition. The temperature monitoring module is used to monitor the temperature value of the ultrasonic transducer through the temperature sensor, and generate a second alarm signal when the temperature value is greater than or equal to a first preset threshold.

2. The therapeutic device according to claim 1, characterized in that, The signal generation module is specifically used to generate time series parameters based on the excitation parameters; and to generate the ultrasonic excitation signal based on the time series parameters.

3. The therapeutic device according to claim 2, characterized in that, The time series parameters include the frequency parameter of the ultrasonic excitation signal and the duty cycle parameter of the pulse period; The frequency parameter is 0.3MHz to 5MHz, and the duty cycle parameter is 1% to 99%.

4. The therapeutic device according to claim 2, characterized in that, The signal generation module includes a main control unit and a direct digital frequency synthesizer. The main control unit is connected to the host computer interaction module, the direct digital frequency synthesizer, and the ultrasonic transducer, respectively. The main control unit is used to generate time series parameters based on the excitation parameters; The direct digital frequency synthesizer is used to generate an ultrasonic excitation signal based on the time series parameters; the signal-to-noise ratio of the ultrasonic excitation signal is greater than 80 dB.

5. The therapeutic device according to claim 1, characterized in that, The ultrasound therapy host also includes a power amplifier, which is connected to the signal generation module and the ultrasound transducer respectively; The signal generation module is used to generate an initial excitation signal based on the excitation parameters; The power amplifier is used to amplify the power of the initial excitation signal to obtain the ultrasonic excitation signal.

6. The therapeutic device according to claim 5, characterized in that, The ultrasound therapy host also includes a dual-directional coupler, which is connected to the power amplifier and the ultrasound transducer respectively; The dual-directional coupler is used to extract and separate the ultrasonic excitation signal through the coupling structure to obtain a first detection signal with a positive power value and a second detection signal with a negative power value; The power monitoring module is specifically used to determine that the power value of the ultrasonic excitation signal meets the preset power condition when the difference between the power value of the first detection signal and the power value of the second detection signal meets a preset difference condition, or when the power value of the second detection signal is greater than or equal to a second preset threshold.

7. The therapeutic device according to claim 6, characterized in that, The preset difference condition indicates that the difference is within ±5% of the target power value, and the second preset threshold is determined based on the power value of the first detection signal.

8. The therapeutic device according to claim 6, characterized in that, The dual directional coupler is specifically used to extract and separate the ultrasonic excitation signal based on a preset coupling degree and a preset insertion loss through a coupling structure to obtain a first detection signal with a positive power value and a second detection signal with a negative power value. Wherein, the preset coupling degree is greater than or equal to 30dB, and the preset insertion loss is less than 0.5dB.

9. The therapeutic device according to claim 1, characterized in that, The first preset threshold is greater than or equal to 43°C.

10. A method for monitoring a therapeutic instrument, characterized in that, The method, applied to the therapeutic device according to any one of claims 1-9, comprises: In response to parameter setting operations, the excitation parameters are determined; An ultrasonic excitation signal is generated based on the excitation parameters; Monitor the power value of the ultrasonic excitation signal, and generate a first alarm signal when the power value meets a preset power condition; The temperature sensor monitors the temperature value of the ultrasonic transducer, and generates a second alarm signal when the temperature value is greater than or equal to a first preset threshold.

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