Ultrasonic catheter driving circuit, method, device and medium

Abstract

The present application discloses a driving circuit, method, device and medium for an ultrasonic catheter, which is applied to the field of power electronics technology to solve the problems of slow matching speed and large matching resource occupation of the driving circuit of the ultrasonic catheter in the prior art. Specifically, the model identification module determines the corresponding identification signal based on the resistance value of the identification resistor; the switch module connects or disconnects the connection of the tuning module corresponding to the identification signal, and sends the pulse signal generated by the external processor to the corresponding tuning module; the tuning module is used to adjust the frequency of the pulse signal to obtain the target pulse signal; the isolation module is used to send the target pulse signal to the ultrasonic catheter and realize electrical isolation from the ultrasonic catheter. In this way, according to the hardware circuit of the driving circuit of the ultrasonic catheter, the identification signal determined by the resistance value of the identification resistor is automatically connected to the corresponding tuning module, thereby realizing the identification and configuration of ultrasonic catheters of different models, improving the matching speed, and effectively reducing the occupation of resources.

Description

Technical Field

[0001] The present application relates to the field of power electronics technology, and in particular to a driving circuit, method, device, and medium for an ultrasonic catheter. Background Art

[0002] Intravascular ultrasound (IVUS) combines noninvasive ultrasound and invasive catheter technology, using a catheter with an ultrasonic transducer in its distal lumen for medical imaging. An IVUS real-time imaging system primarily consists of an ultrasound catheter, a drive circuit, and a processor. The drive circuit primarily drives the ultrasound transducer through a drive shaft, rotating it circumferentially relative to the catheter to achieve 360-degree imaging within the blood vessels. The processor also processes the catheter pulse signal generated by the processor, allowing it to drive the ultrasound transducer to transmit ultrasound waves.

[0003] At present, different types of ultrasonic catheters are used for different pathologies. Different types of catheters use different ultrasonic transducers and corresponding drive circuits. The existing drive circuit matching is achieved by using FLASH recognition and reading and controlling the main control chip in the processor. This method consumes a lot of resources and is slow. Summary of the Invention

[0004] The embodiments of the present application provide a driving circuit, method, device, and medium for an ultrasonic catheter, which are used to solve the problems in the prior art of slow matching speed and large matching resource occupation of the driving circuit of the ultrasonic catheter.

[0005] The technical solutions provided in the embodiments of this application are as follows:

[0006] On the one hand, an embodiment of the present application provides a driving circuit for an ultrasonic catheter, comprising: a model identification module, a switch module, a plurality of tuning modules, and an isolation module;

[0007] The input end of the model identification module is connected to the identification resistor of the ultrasonic catheter, and the output end of the model identification module is connected to the input end of the external processor and the first input end of the switch module respectively; the model identification module is used to determine a corresponding identification signal based on the resistance value of the identification resistor, and send the identification signal to the external processor and the switch module, so that the external processor generates a corresponding pulse signal according to the identification signal;

[0008] The second input end of the switch module is connected to the output end of the external processor, and each output end of the switch module is connected to the input end of a plurality of tuning modules respectively; the switch module is used to connect or disconnect the connection of the tuning module corresponding to the identification signal, and send the pulse signal generated by the external processor to the corresponding tuning module;

[0009] The output ends of the multiple tuning modules are connected to the input end of the isolation module; the tuning module is used to adjust the frequency of the pulse signal to obtain the target pulse signal;

[0010] The first output end of the isolation module is connected to the transducer of the ultrasonic catheter; the isolation module is used to send the target pulse signal to the ultrasonic catheter and achieve electrical isolation with the ultrasonic catheter.

[0011] In a possible implementation, the model identification module includes: an online detection resistor, at least three voltage divider resistors, at least two transistors, and at least two negative feedback resistors;

[0012] At least three voltage-dividing resistors are connected in series, a first end of a first voltage-dividing resistor among the at least three voltage-dividing resistors is connected to a first power supply, and a last voltage-dividing resistor among the at least three voltage-dividing resistors is connected to ground; a first end of an identification resistor is connected to a second end of a first voltage-dividing resistor among the at least three voltage-dividing resistors, and a second end of the identification resistor is connected to ground;

[0013] A first end of the online detection resistor is connected to the first power supply, and a second end of the online detection resistor is connected to the detection signal output end and the ground in the ultrasonic catheter respectively;

[0014] The collector of each of the at least two transistors is connected to the first power supply, the base of each of the at least two transistors is connected to the connection between the corresponding two voltage-dividing resistors, and the emitter of each of the at least two transistors is respectively connected to the input end of the switch module and the first end of the corresponding negative feedback resistor;

[0015] A second end of each of the at least two negative feedback resistors is connected to the ground.

[0016] In a possible implementation, the switch module includes: a switch chip;

[0017] The control end of the switch chip is connected to the emitter of each transistor in at least two transistors in the model identification module, the input end of the switch chip is connected to the output end of the external processor, and each output end of the switch module is respectively connected to the input end of multiple tuning modules.

[0018] In a possible implementation, each of the multiple tuning modules includes: an inductor and a capacitor;

[0019] The first end of the inductor is connected to the output end corresponding to the switch module, and the second end of the inductor is connected to the input end of the isolation module;

[0020] The first end of the capacitor is connected to the second end of the inductor, and the second end of the capacitor is connected to the ground.

[0021] In a possible implementation, the driving circuit of the ultrasound catheter further includes: an amplitude limiting amplifier module;

[0022] The first end of the limiting amplifier module is connected to the second output end of the isolation module, and the second end of the limiting amplifier module is connected to the external processor; the limiting amplifier module is used to limit and amplify the echo signal output by the isolation module.

[0023] In a possible implementation, the driving circuit of the ultrasound catheter further includes: a motor encoding module;

[0024] One end of the motor encoding module is connected to the drive motor, and the second end of the motor encoding module is connected to the external processor; the motor encoding module is used to output the rotation data of the drive motor in real time.

[0025] On the other hand, an embodiment of the present application provides a method for driving an ultrasonic catheter, comprising:

[0026] Determine a corresponding identification signal based on the resistance value of the identification resistor, and send the identification signal to an external processor and a switch module;

[0027] Connecting the corresponding tuning module according to the identification signal and sending the pulse signal generated by the external processor to the corresponding tuning module;

[0028] Adjust the frequency of the pulse signal to obtain the target pulse signal;

[0029] Send a target pulse signal to the ultrasound catheter.

[0030] In a possible implementation, after sending the target pulse signal to the ultrasound catheter, the method further includes:

[0031] receiving echo signals sent by the ultrasound catheter;

[0032] The echo signal is subjected to limiting amplification processing and is sent to an external processor.

[0033] On the other hand, an embodiment of the present application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the driving method of the ultrasonic catheter provided in the embodiment of the present application is implemented.

[0034] On the other hand, an embodiment of the present application further provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed by a processor, the driving method of the ultrasonic catheter provided by the embodiment of the present application is implemented.

[0035] The beneficial effects of the embodiments of the present application are as follows:

[0036] In this embodiment, a model recognition module determines the identification signal corresponding to each ultrasound catheter signal based on the value of the identification resistor, thereby enabling identification of different ultrasound catheter models. Furthermore, a switch module automatically connects the corresponding tuning module based on the identification signal, thereby achieving automatic driver configuration and improving the matching speed of the ultrasound catheter driver. Furthermore, both the generation of the identification signal and the matching of the tuning module are implemented by hardware circuitry within the driver circuit, effectively reducing resource usage and providing high reliability.

[0037] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description or be understood by practicing the present application. The purposes and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0039] Figure 1 This is a schematic diagram of a first circuit structure of a driving circuit of an ultrasound catheter in an embodiment of the present application;

[0040] Figure 2 Schematic diagram of a second circuit structure of the driving circuit of the ultrasound catheter in an embodiment of the present application;

[0041] Figure 3 This is a schematic diagram of a circuit structure of a model identification module in a driving circuit of an ultrasound catheter in an embodiment of the present application;

[0042] Figure 4 Schematic diagram of a third circuit structure of the driving circuit of the ultrasound catheter in an embodiment of the present application;

[0043] Figure 5 Schematic diagram of a fourth circuit structure of the driving circuit of the ultrasound catheter in an embodiment of the present application;

[0044] Figure 6 Schematic diagram of a fifth circuit structure of the driving circuit of the ultrasound catheter in an embodiment of the present application;

[0045] Figure 7 Schematic diagram of a sixth circuit structure of the driving circuit of the ultrasound catheter in an embodiment of the present application;

[0046] Figure 8 Schematic diagram of an overview of the driving method of an ultrasonic catheter in an embodiment of the present application;

[0047] Figure 9Schematic diagram of the hardware structure of the electronic device in the embodiment of the present application. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and beneficial effects of this application more clearly understood, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0049] The embodiment of the present application provides a driving circuit for an ultrasonic catheter. Figure 1 As shown, the driving circuit of the ultrasonic catheter provided in the embodiment of the present application includes at least: a model identification module 110, a switch module 120, a plurality of tuning modules 130 and an isolation module 140;

[0050] The input end of the model recognition module 110 is connected to the recognition resistor of the ultrasonic catheter, and the output end of the model recognition module 110 is connected to the input end of the external processor and the first input end of the switch module 120 respectively; the model recognition module 110 is used to determine a corresponding recognition signal based on the resistance value of the recognition resistor, and send the recognition signal to the external processor and the switch module 120, so that the external processor generates a corresponding pulse signal according to the recognition signal;

[0051] The second input terminal of the switch module 120 is connected to the output terminal of the external processor, and each output terminal of the switch module 120 is connected to the input terminal of the plurality of tuning modules 130 respectively; the switch module 120 is used to turn on or off the connection of the tuning module 130 corresponding to the identification signal, and send the pulse signal generated by the external processor to the corresponding tuning module 130;

[0052] The output ends of the plurality of tuning modules 130 are all connected to the input end of the isolation module 140; the tuning module 130 is used to adjust the frequency of the pulse signal to obtain the target pulse signal;

[0053] The first output end of the isolation module 140 is connected to the transducer of the ultrasonic catheter; the isolation module 140 is used to send the target pulse signal to the ultrasonic catheter and achieve electrical isolation from the ultrasonic catheter.

[0054] In actual applications, there are many models of existing ultrasonic catheters, and different models correspond to different drive circuits. An ultrasonic catheter is provided with an identification resistor, and different models correspond to different identification resistor values. By identifying the resistance value of the identification resistor, the ultrasonic catheter model can be determined and an identification signal corresponding to the ultrasonic catheter model can be generated. Based on the identification signal, the processor can generate a pulse signal that matches the ultrasonic catheter model and send it to the switch module 120. Simultaneously, based on the identification signal, the switch module 120 connects to the corresponding tuning module 130 that matches the ultrasonic catheter model. The pulse signal generated by the processor is then passed through the switch module 120 to the corresponding tuning module 130 for frequency modulation to obtain a target pulse signal. The target pulse signal is then transmitted to the ultrasonic catheter via the isolation module 140. The ultrasonic transducer in the ultrasonic catheter transmits ultrasonic waves under the action of the matching target pulse signal. In this way, the model identification module determines the identification signal corresponding to different ultrasonic catheter signals based on the resistance value of the identification resistor, thereby enabling identification of different ultrasonic catheter models. Furthermore, the switch module can automatically connect to the corresponding tuning module based on the identification signal, thereby achieving automatic driver configuration and improving the matching speed of the ultrasonic catheter drive. In addition, the generation of the identification signal and the matching of the tuning module are both realized through the hardware circuit in the driving circuit, which can effectively reduce the occupation of resources, has high reliability, low cost and simple production.

[0055] In specific implementation, in the driving circuit of the ultrasonic catheter provided in this embodiment, the model identification module 110 can have various structures to realize its specific functions. Figure 2 As shown, the model identification module 110 includes: an online detection resistor R1, at least three voltage divider resistors Rv1, Rv2...Rvn, at least two transistors Q1, Q2...Qn and at least two negative feedback resistors Rq1, Rq2...Rqn;

[0056] The at least three voltage-dividing resistors Rv1, Rv2…Rvn are connected in series in sequence, a first end of the first voltage-dividing resistor Rv1 among the at least three voltage-dividing resistors Rv1, Rv2…Rvn is connected to the first power supply, and a last voltage-dividing resistor Rvn among the at least three voltage-dividing resistors Rv1, Rv2…Rvn is connected to the ground; a first end of the identification resistor R0 is connected to the second end of the first voltage-dividing resistor Rv1 among the at least three voltage-dividing resistors Rv1, Rv2…Rvn, and a second end of the identification resistor R0 is connected to the ground;

[0057] The first end of the online detection resistor R1 is connected to the first power supply, and the second end of the online detection resistor R1 is connected to the detection signal output end and the ground in the ultrasonic catheter respectively;

[0058] The collector of each of the at least two transistors Q1, Q2...Qn is connected to the first power supply, the base of each of the at least two transistors Q1, Q2...Qn is connected to the connection between the corresponding two voltage-dividing resistors, and the emitter of each of the at least two transistors Q1, Q2...Qn is respectively connected to the input end of the switch module 120 and the first end of the corresponding negative feedback resistor;

[0059] A second end of each of the at least two negative feedback resistors Rq1 , Rq2 . . . Rqn is connected to the ground.

[0060] In actual applications, the online detection resistor R1 is used to detect whether the ultrasonic catheter is reliably connected to the driving circuit. When the ultrasonic catheter is reliably connected to the driving circuit, the online detection resistor R1 is connected to the ground in the ultrasonic catheter, and the detection signal output end changes from a high level to a low level; when the ultrasonic catheter is not connected to the driving circuit or there is a virtual connection, the detection signal output end is a high level. The processor can start generating a pulse signal when it detects that the detection signal output end is a low level, and stop generating a pulse signal when it detects that the detection signal output end is a high level. The voltage dividing resistors Rv1, Rv2...Rvn are mainly used to obtain different voltages to drive the corresponding transistors through voltage division. The transistors Q1, Q2...Qn are used to turn on when the driving voltage at their base exceeds the threshold value, and output the voltage corresponding to the first power supply as an identification signal; when the driving voltage at their base does not exceed the threshold value, they are turned off and output a 0 level as an identification signal. Negative feedback resistors Rq1, Rq2,…Rqn stabilize the operating point and suppress the rate of change in the storage time from on-to-off of transistors Q1, Q2,…Qn, which increases with temperature. This accelerates transistor turn-off and prevents deep saturation of the transistors. Different values of identification resistor R0 result in different voltages being input to the bases of transistors Q1, Q2,…Qn after voltage division by voltage divider resistors Rv1, Rv2,…Rvn. The identification signals output by each transistor Q1, Q2,…Qn can thus distinguish different models of ultrasound catheters.

[0061] like Figure 3The circuit diagram of the model identification module 110 is shown, which includes an online detection resistor, three voltage-dividing resistors, two transistors, and two negative feedback resistors. R0 is the identification resistor, R1 is the online detection resistor, Rv1, Rv2, and Rv3 are voltage-dividing resistors, Q1 and Q2 are transistors, and Rq1 and Rq2 are negative feedback resistors. The first power supply Vcc is a DC power supply with an output voltage of 3.3V. After the ultrasound catheter is connected to the drive circuit, the output signal of the detection signal output terminal ON_LINE is forced to be pulled down from a high level of 3.3V to 0V. The negative feedback resistors Rq1 and Rq2, the online detection resistor R1, and the voltage-dividing resistors Rv1, Rv2, and Rv3 are appropriately set according to actual needs. In this example, the voltage-dividing resistors Rv1, Rv2, and Rv3 are 0.28KΩ, 10KΩ, and 10KΩ, respectively. Different voltages U1 and U2 can be obtained when the resistance values of the identification resistors are different, corresponding to driving transistors Q1 and Q2. If the drive voltages U1 and / or U2 exceed the 1.3V threshold of transistors Q1 and Q2, transistors Q1 and / or Q2 conduct, and identification signals ID1 and ID2 change from 0V to VCC, or 3.3V. Table 1 shows the transistor drive voltages and corresponding identification signals when different ultrasound catheter models are connected. When the resistance of the identification resistor is 10KΩ, the voltage across the voltage-dividing resistor Rv1 is small, the driving voltage of the transistors Q1 and Q2 is much higher than the threshold value of 1.3V, the transistors Q1 and Q2 are both turned on, and the identification signals ID1 and ID2 are both 3.3V; when the resistance of the identification resistor is 1KΩ, the voltage across the voltage-dividing resistor Rv1 increases, the driving voltage of the transistor Q1 is higher than the threshold value of 1.3V, and the driving voltage of the transistor Q2 is lower than the threshold value of 1.3V, the transistor Q1 is turned on, the transistor Q2 is turned off, the identification signal ID1 is 3.3V, and the identification signal ID2 is 0V; when the resistance of the identification resistor is 0.5KΩ, the voltage across the voltage-dividing resistor Rv1 further increases, the driving voltage of the transistors Q1 and Q2 is both lower than the threshold value of 1.3V, the transistors Q1 and Q2 are both turned off, and the identification signals ID1 and ID2 are both 0V.

[0062] Table 1 Truth table of identification signals of different types of ultrasonic catheters

[0063]

[0064]

[0065] It is worth noting that by increasing the number of voltage-dividing resistors, transistors and negative feedback resistors in the circuit, more identification resistors with different resistance values can be identified, thereby achieving more different types of ultrasound catheters. Among them, the resistance value of the online detection resistor, the resistance value of the voltage-dividing resistor and the voltage value of the first power supply can be set according to actual needs, and the transistor can be controlled by other controllable switching tubes such as field-effect transistors, and there is no restriction here.

[0066] In specific implementation, in the driving circuit of the ultrasonic catheter provided in this embodiment, the switch module 120 can have various structures to realize its specific functions. Figure 4 As shown, the switch module 120 includes: a switch chip;

[0067] The control end of the switch chip is connected to the emitter of each transistor in at least two transistors in the model identification module 110, the input end of the switch chip is connected to the output end of the external processor, and each output end of the switch module 120 is respectively connected to the input end of the multiple tuning modules 130.

[0068] In actual applications, the switch chip primarily controls the opening or closing of the switches corresponding to the respective identification signal chips based on the level of the input identification signals. When the identification signal of the input switch is at a high level, the switch chip drives the switch corresponding to the identification signal to open, connecting the corresponding tuning module 130 and sending the pulse signal generated by the external processor to the tuning module 130. When the identification signal of the input switch is at a low level, the switch chip drives the switch corresponding to the identification signal to close, and the corresponding tuning module 130 is not connected. By controlling the opening or closing of the switches corresponding to the respective identification signal chips based on the identification signal, the tuning module 130 corresponding to the identification signal can be connected, thereby achieving automatic selection of the tuning module 130.

[0069] In specific implementation, in the driving circuit of the ultrasonic catheter provided in this embodiment, each of the multiple tuning modules 130 can have multiple structures to achieve its specific function. Figure 5 As shown, the tuning module 130 may include: an inductor and a capacitor;

[0070] The first end of the inductor is connected to the output end corresponding to the switch module 120, and the second end of the inductor is connected to the input end of the isolation module 140;

[0071] The first end of the capacitor is connected to the second end of the inductor, and the second end of the capacitor is connected to the ground.

[0072] In actual applications, the tuning module 130 mainly adjusts the frequency of the input pulse signal through the set inductance and capacitance. The resistance values of the inductance and capacitance can be set according to actual needs. The values of the capacitance and inductance of each tuning module 130 in multiple tuning modules 130 can be the same or different. More precise adjustment can also be achieved by increasing the number of capacitors and inductors in the tuning module 130, which is not limited here.

[0073] In one possible implementation, see Figure 6 As shown, the driving circuit of the ultrasonic catheter further includes: an amplitude limiting amplifier module 160;

[0074] The first end of the limiting amplifier module 160 is connected to the second output end of the isolation module 140 , and the second end of the limiting amplifier module 160 is connected to the external processor; the limiting amplifier module 160 is used to limit and amplify the echo signal output by the isolation module 140 .

[0075] In practical applications, the limiting and amplifying module 160 primarily performs limiting and amplification processing on the echo signal output by the ultrasonic transducer connected to the ultrasound catheter, and transmits the processed echo signal to the processor for imaging processing based on the processed echo signal. The amplitude of the limiting processing and the amplification factor of the amplification processing can be set according to actual needs and are not limited here.

[0076] In one possible implementation, see Figure 7 As shown, the driving circuit of the ultrasonic catheter further includes: a motor encoding module 170;

[0077] One end of the motor encoding module 170 is connected to the driving motor, and a second end of the motor encoding module 170 is connected to the external processor; the motor encoding module is used to output the rotation data of the driving motor in real time.

[0078] In actual applications, the rotation parameters of the driving motor output by the motor encoding module 170 mainly include the rotation angle and rotation direction of the motor. The processor generates a pulse signal according to the rotation parameters of the motor and the identification signal sent by the driving circuit and sends it to the driving circuit.

[0079] The embodiment of the present application provides a driving method of an ultrasonic catheter, which is applied to a driving circuit of an ultrasonic catheter. Figure 8 As shown, the general process of the driving method of the ultrasonic catheter provided in the embodiment of the present application is as follows:

[0080] Step 801: Determine a corresponding identification signal based on the resistance value of the identification resistor, and send the identification signal to an external processor and a switch module.

[0081] Step 802: Connecting a corresponding tuning module according to the identification signal, and sending the pulse signal generated by the external processor to the corresponding tuning module.

[0082] Step 803: Adjust the frequency of the pulse signal to obtain a target pulse signal.

[0083] Step 804: Send the target pulse signal to the ultrasound catheter.

[0084] In practical applications, after the driver circuit is connected to the ultrasonic catheter, it can determine the corresponding identification signal based on the resistance of the ultrasonic catheter identification resistor and send the identification signal to the external processor and switch module respectively. The external processor can generate a motor control signal to control the motor operation while generating a corresponding pulse signal based on the identification signal and the motor's rotation parameters and sending it to the switch module. The switch module can automatically connect to the corresponding tuning module in real time based on the identification signal and perform frequency modulation processing on the pulse signal generated by the processor through the connected tuning module to obtain the target pulse signal. The target pulse signal is sent to the ultrasonic catheter via the isolation module. The ultrasonic transducer in the ultrasonic catheter generates ultrasonic waves under the action of the target pulse signal.

[0085] In one possible implementation, after sending the target pulse signal to the ultrasound catheter, it is necessary to receive the echo signal returned by the ultrasound transducer in the ultrasound catheter. Specifically, the following methods may be used, but are not limited to:

[0086] First, an echo signal sent by the ultrasound catheter is received.

[0087] Then, the echo signal is subjected to a limiting amplification process, and the echo signal after the limiting amplification process is sent to the external processor.

[0088] In actual applications, the driving circuit can receive the echo signal sent by the ultrasonic transducer in the ultrasonic catheter through the isolation module. The echo signal is limited and amplified by the limiting and amplifying module and then sent to the processor, so that the processor converts the echo signal after limiting and amplifying processing and outputs the corresponding image signal, thereby realizing imaging.

[0089] Based on the above analysis, the driving method of the ultrasonic catheter provided in the embodiment of the present application can not only determine the corresponding identification signal based on the resistance value of the identification resistor to realize the identification of different models of ultrasonic catheters, but also automatically connect the corresponding tuning module according to the identification signal, thereby realizing automatic configuration of the drive, improving the matching speed of the ultrasonic catheter drive, and increasing the matching reliability of the ultrasonic catheter drive.

[0090] After introducing the driving circuit and method of the ultrasonic catheter provided in the embodiment of the present application, the electronic device provided in the embodiment of the present application is briefly introduced next.

[0091] See Figure 9 As shown, the electronic device 900 provided in the embodiment of the present application includes at least: a processor 901, a memory 902, and a computer program stored in the memory 902 and executable on the processor 901. When the processor 901 executes the computer program, the driving method of the ultrasonic catheter provided in the embodiment of the present application is implemented.

[0092] It should be noted that Figure 9 The electronic device 900 shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0093] The electronic device 900 provided in the embodiment of the present application may further include a bus 903 connecting different components (including the processor 901 and the memory 902). The bus 903 represents one or more of several types of bus structures, including a memory bus, a peripheral bus, a local bus, and the like.

[0094] The memory 902 may include a readable medium in the form of a volatile memory, such as a random access memory (RAM) 9021 and / or a cache memory 9022 , and may further include a read-only memory (ROM) 9023 .

[0095] The memory 902 may also include a program tool 9025 having a set (at least one) of program modules 9024, including but not limited to: an operating subsystem, one or more application programs, other program modules and program data, each of which or some combination may include the implementation of a network environment.

[0096] The electronic device 900 may also communicate with one or more external devices 904 (e.g., keyboards, remote controls, etc.), and may also communicate with one or more devices that enable a user to interact with the electronic device 900 (e.g., mobile phones, computers, etc.), and / or any device that enables the electronic device 900 to communicate with one or more other electronic devices 900 (e.g., routers, modems, etc.). Such communication may be performed through an input / output (I / O) interface 905. Furthermore, the electronic device 900 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 906. Figure 9 As shown, the network adapter 906 communicates with other modules of the electronic device 900 via the bus 903. Figure 9 Not shown, other hardware and / or software modules may be used in conjunction with the electronic device 900, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, disk arrays (Redundant Arrays of Independent Disks, RAID) subsystems, tape drives, and data backup storage subsystems.

[0097] The following describes the computer-readable storage medium provided in the embodiments of the present application. The computer-readable storage medium provided in the embodiments of the present application stores computer instructions, which, when executed by a processor, implement the ultrasound catheter driving method provided in the embodiments of the present application. Specifically, the computer instructions may be built into or installed in the electronic device 900. Thus, the electronic device 900 can implement the ultrasound catheter driving method provided in the embodiments of the present application by executing the built-in or installed computer instructions.

[0098] In addition, the driving method of the ultrasonic catheter provided in the embodiment of the present application can also be implemented as a program product, which includes a program code. When the program product can be run on the electronic device 900, the program code is used to enable the electronic device 900 to execute the driving method of the ultrasonic catheter provided in the embodiment of the present application.

[0099] The program product provided in the embodiments of the present application may adopt any combination of one or more readable media, wherein the readable medium may be a readable signal medium or a readable storage medium, and the readable storage medium may be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any combination of the above. Specifically, more specific examples of readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable disk, a hard disk, RAM, ROM, Erasable Programmable Read Only Memory (EPROM), optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0100] The program product provided in the embodiments of the present application may be a CD-ROM and include program code, and may also be run on a computing device. However, the program product provided in the embodiments of the present application is not limited thereto. In the embodiments of the present application, the readable storage medium may be any tangible medium containing or storing a program, and the program may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0101] It should be noted that although several units or subunits of the device are mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, depending on the embodiment of the application, the features and functions of two or more units described above can be embodied in a single unit. Conversely, the features and functions of a single unit described above can be further divided and embodied by multiple units.

[0102] Furthermore, although the operations of the method of the present application are described in a particular order in the accompanying drawings, this does not require or imply that the operations must be performed in this particular order, or that all illustrated operations must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

[0103] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0104] Obviously, those skilled in the art may make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include such modifications and variations.

Claims

1. A driving circuit for an ultrasonic catheter, characterized in that: include: Model identification module, switch module, multiple tuning modules and isolation modules; The input end of the model recognition module is connected to the recognition resistor of the ultrasonic catheter, and the output end of the model recognition module is connected to the input end of the external processor and the first input end of the switch module respectively; the model recognition module is used to determine a corresponding recognition signal based on the resistance value of the recognition resistor, and send the recognition signal to the external processor and the switch module, so that the external processor generates a corresponding pulse signal according to the recognition signal; The second input end of the switch module is connected to the output end of the external processor, and each output end of the switch module is connected to the input end of the plurality of tuning modules respectively; the switch module is used to turn on or off the connection of the tuning module corresponding to the identification signal, and send the pulse signal generated by the external processor to the corresponding tuning module; The output ends of the plurality of tuning modules are all connected to the input end of the isolation module; the tuning module is used to adjust the frequency of the pulse signal to obtain a target pulse signal; The first output end of the isolation module is connected to the transducer of the ultrasonic catheter; the isolation module is used to send the target pulse signal to the ultrasonic catheter and achieve electrical isolation from the ultrasonic catheter; The model identification module includes: an online detection resistor, at least three voltage-dividing resistors, at least two transistors and at least two negative feedback resistors; The at least three voltage-dividing resistors are connected in series in sequence, a first end of a first voltage-dividing resistor among the at least three voltage-dividing resistors is connected to a first power supply, and a last voltage-dividing resistor among the at least three voltage-dividing resistors is connected to ground; a first end of the identification resistor is connected to a second end of the first voltage-dividing resistor among the at least three voltage-dividing resistors, and a second end of the identification resistor is connected to ground; The first end of the online detection resistor is connected to the first power supply, and the second end of the online detection resistor is connected to the detection signal output end and the ground in the ultrasonic catheter respectively; The collector of each of the at least two transistors is connected to the first power supply, the base of each of the at least two transistors is connected to the connection between the corresponding two voltage-dividing resistors, and the emitter of each of the at least two transistors is respectively connected to the input end of the switch module and the first end of the corresponding negative feedback resistor; The second end of each of the at least two negative feedback resistors is connected to the ground.

2. The driving circuit of the ultrasonic catheter according to claim 1, wherein: The switch module includes: a switch chip; The control end of the switch chip is connected to the emitter of each of the at least two transistors in the model identification module, the input end of the switch chip is connected to the output end of the external processor, and each output end of the switch module is respectively connected to the input end of the multiple tuning modules.

3. The driving circuit of the ultrasonic catheter according to claim 1, wherein: Each of the plurality of tuning modules includes: an inductor and a capacitor; The first end of the inductor is connected to the output end corresponding to the switch module, and the second end of the inductor is connected to the input end of the isolation module; The first end of the capacitor is connected to the second end of the inductor, and the second end of the capacitor is connected to the ground.

4. The driving circuit of the ultrasonic catheter according to any one of claims 1 to 3, characterized in that: Also includes: Limiting amplifier module; The first end of the limiting amplifier module is connected to the second output end of the isolation module, and the second end of the limiting amplifier module is connected to the external processor; The limiting and amplifying module is used to perform limiting and amplifying processing on the echo signal output by the isolation module.

5. The driving circuit of the ultrasonic catheter according to claim 4, characterized in that: Also includes: Motor encoder module; One end of the motor encoding module is connected to the drive motor, and a second end of the motor encoding module is connected to the external processor; The motor encoding module is used to output the rotation data of the drive motor in real time.

6. A method for driving an ultrasonic catheter, characterized in that: include: Determine a corresponding identification signal based on the resistance value of the identification resistor, and send the identification signal to an external processor and a switch module; connecting the corresponding tuning module according to the identification signal, and sending the pulse signal generated by the external processor to the corresponding tuning module; Adjust the frequency of the pulse signal to obtain the target pulse signal; Send a target pulse signal to the ultrasound catheter.

7. The driving method of the ultrasonic catheter according to claim 6, characterized in that: After sending the target pulse signal to the ultrasonic catheter, the method further includes: receiving an echo signal sent by the ultrasonic catheter; The echo signal is subjected to limiting amplification processing, and the echo signal after the limiting amplification processing is sent to the external processor.

8. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the driving method of the ultrasound catheter according to any one of claims 6 to 7 is implemented.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the driving method of the ultrasound catheter according to any one of claims 7 to 8 is implemented.

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