Dual frequency segmented resonant ultrasonic surgical aspiration system and method of control

Abstract

The application discloses a kind of dual-frequency segmented resonance's ultrasonic surgical suction system and control method, belong to ultrasonic surgical equipment field, including main control module, dual-frequency matching drive module, dual-resonance point ultrasonic transducer handle, tool head assembly, foot control module, negative pressure waste liquid collection system, display drive module and power module;Main control module is used to obtain power parameter and generates corresponding start signal, relies on start signal to control power drive unit output high-frequency drive power supply.The dual-frequency segmented resonance's ultrasonic surgical suction system and control method of the application, by setting 23kHz, 40kHz two fixed resonance frequency points, match independent amplitude, power parameter, respectively corresponding hard tissue and soft tissue operation, dual-frequency drive and transducer accurate match, resonant state is kept throughout, under load fluctuation also will not appear detuning, power drop problem, equipment more widely applicable, more stable operation.

Description

Technical Field

[0001] This invention belongs to the field of ultrasonic surgical equipment, specifically relating to a dual-frequency segmented resonant ultrasonic surgical aspiration system and its control method. Background Technology

[0002] Existing ultrasound surgical aspiration (CUSA) equipment is mainly divided into two categories: single-frequency fixed models and full-band continuous frequency conversion models. Both have obvious technical shortcomings: single-frequency products mostly use a fixed 25kHz drive, which cannot distinguish between the needs of soft and hard tissue surgery. Low-frequency fragmentation efficiency is insufficient, and high-frequency soft tissue surgery is prone to damage to nerves and blood vessels. They are not suitable for use in multiple departments. Imported products use a 20-40kHz continuous stepless frequency conversion scheme, relying on a wideband transducer + full-bandwidth frequency tracking control. This structure has been fully patented, and domestic products are very likely to infringe on it. At the same time, wideband transducers are difficult to manufacture and the overall cost of the machine is high, resulting in high procurement costs for primary hospitals. Continuous frequency conversion algorithms are complex, and detuning and output power drops are very likely to occur when the surgical load fluctuates.

[0003] In addition, existing equipment has poor negative pressure suction control accuracy, with a large deviation between the actual negative pressure value and the set value; the integration of foot pedals and handles is low, making it impossible to quickly switch parameters between soft and hard tissue procedures, and the time spent changing surgical instruments is long. Existing equipment cannot achieve independent optimization and control of amplitude and power at different working frequencies, making it difficult to improve surgical safety and work efficiency simultaneously. To solve the above problems, a dual-frequency segmented resonance ultrasonic surgical suction system and control method are proposed. Summary of the Invention

[0004] In response to one or more of the above-mentioned defects or improvement needs of the existing technology, the present invention provides a dual-frequency segmented resonant ultrasonic surgical aspiration system and control method. By independently configuring the dual frequencies to adapt to different tissue surgeries, a differentiated architecture is formed to create a replication threshold, and foot pedal control is used to achieve rapid switching of working conditions, thereby comprehensively improving the practicality of the equipment and the clinical experience.

[0005] To achieve the above objectives, the present invention provides a dual-frequency segmented resonance ultrasonic surgical aspiration system, comprising a main control module, a dual-frequency matching drive module, a dual-resonance point ultrasonic transducer handle, a blade assembly, a foot pedal control module, a negative pressure waste fluid collection system, a display drive module, and a power supply module. The main control module is used to acquire power parameters and generate corresponding start signals, and uses the start signals to control the power drive unit to output high-frequency drive power. The blade assembly is mounted on the handle of the dual-resonance ultrasonic transducer to receive high-frequency drive power and generate ultrasonic vibration, thereby enabling the cutting, coagulation, decomposition and suction of the target tissue. The foot pedal control module is electrically connected to the negative pressure waste liquid collection system for one-button switching of the operating frequency band; The display driver module is used to receive user-inputted operation parameters and transmit them to the main control module; The power module is used to supply power to the entire system; The main control module has a built-in frequency band switching unit and a frequency band parameter storage unit. The frequency band switching unit is used to switch the circuit between two frequency points. The frequency band parameter storage unit pre-stores two sets of independent operating parameters: 23kHz frequency band: amplitude 0~350μm, maximum power 100W; 40kHz frequency band: amplitude 0~280μm, maximum power 80W. The dual-frequency matching drive module contains two independent matching units: a 23kHz matching unit corresponding to hard tissue and a 40kHz matching unit corresponding to soft tissue. The two matching units correspond one-to-one with the two inherent resonant frequencies of the dual-resonant ultrasonic transducer handle, namely 23kHz and 40kHz.

[0006] Furthermore, the negative pressure waste liquid collection system includes a piping kit, a filter, a suction tank, a drip control unit, a proportional valve assembly, a negative pressure suction port, and a pressure monitoring unit; The droplet control unit is connected to the negative pressure vacuum pump and adjusts the opening ratio of the negative pressure vacuum pump through a proportional solenoid valve to control the negative pressure suction pressure generated at the outlet of the negative pressure vacuum pump. The outlet of the negative pressure vacuum pump is connected to the negative pressure suction port, which is connected to the suction tank. The pressure monitoring unit is used to collect the actual negative pressure value of the negative pressure suction port and feed the actual negative pressure value back to the drip control unit. The drip control unit is also used to dynamically adjust the opening of the proportional solenoid valve according to the deviation between the actual negative pressure value and the negative pressure suction setting value in the main control module, so as to ensure the deviation range between the actual negative pressure value and the negative pressure suction setting value.

[0007] Furthermore, the foot pedal device includes a foot pedal interface and a foot switch connected to the foot pedal interface. The foot switch includes a foot pedal pressing module and an activation function unit; Among them, the excitation function unit and the parameter adjustment function unit are respectively connected to the main control module. The activation function unit is used to acquire the user's foot pedal action on the foot pedal module and switch the frequency of the ultrasonic surgical suction system based on the foot pedal action.

[0008] Furthermore, the piping kit includes A suction tube made of flexible, corrosion-resistant material is used to suction waste generated during surgery. One end of the suction tube is connected to the handle of a dual-resonance ultrasonic transducer via a connector. At least one connector and valve connect the other end of the suction tube to an external waste collection device for adjusting the suction force and preventing leakage. The connector and valve are integrated into the operating handle or controlled via an operating interface on the operating handle.

[0009] Furthermore, the power module includes power distribution terminals, a power switch, and a power plug; The power plug is the external AC power input terminal, and the power switch is connected in series between the power plug and the power distribution terminal to control the overall system power on and power off. The power distribution terminal is equipped with multiple independent output branches, which are electrically connected to the main control module, dual-frequency matching drive module, display drive module, foot pedal control module, and negative pressure waste liquid collection system, respectively. The power distribution terminal performs voltage regulation and current distribution on the input power, providing rated operating voltage and operating current to each functional module in the system. At the same time, the power distribution terminal has built-in overcurrent and overvoltage protection circuits. When a short circuit or overload occurs in a single or multiple loads, the power supply to the corresponding branch is automatically cut off to protect the equipment circuit safety.

[0010] The present invention also provides a method for controlling dual-frequency segmented resonance ultrasonic surgical aspiration, applied to the above-mentioned dual-frequency segmented resonance ultrasonic surgical aspiration system, comprising the following steps: S1. Preoperative mode selection: Select hard tissue mode or soft tissue mode according to the surgical object. The system will switch to the 23kHz or 40kHz frequency band accordingly and load the corresponding frequency band preset parameters. S2. Independent parameter adjustment by frequency band: Adjust the amplitude and output power separately within the current frequency band. The amplitude adjustment range is 0-350μm for the 23kHz band and 0-280μm for the 40kHz band. S3. Narrowband Resonance Lock-in: Real-time acquisition of the current and voltage phase difference of the transducer, and frequency locking is completed only within ±500Hz of the current fixed frequency point to maintain resonance stability; S4. Intraoperative frequency band switching: The system automatically switches the matching circuit and loads the corresponding parameters by issuing a command via the foot switch, thus completing the switching between the two operating frequency bands.

[0011] Furthermore, the overall switching time of the intraoperative frequency band does not exceed 200ms.

[0012] Furthermore, the maximum output power is 100W in the 23kHz band and 80W in the 40kHz band.

[0013] Furthermore, it also includes a negative pressure closed-loop control step: real-time acquisition of the actual negative pressure value of the negative pressure suction port, comparison with the preset negative pressure value, and dynamic adjustment of the opening of the proportional valve assembly to stabilize the negative pressure within the set deviation range.

[0014] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include: 1. The dual-frequency segmented resonance ultrasonic surgical aspiration system and control method of the present invention, by setting two fixed resonant frequencies of 23kHz and 40kHz, and matching them with independent amplitude and power parameters, respectively corresponding to hard tissue and soft tissue surgery, the dual-frequency drive and transducer are precisely matched to maintain the resonant state throughout the process. There will be no detuning or power reduction problem under load fluctuations, and the equipment has a wider range of applications and more stable operation.

[0015] 2. The dual-frequency segmented resonance ultrasonic surgical aspiration system and control method of the present invention abandons the mainstream continuous frequency conversion architecture and adopts a design with dual fixed frequency points and independent narrowband matching drive, which is significantly different from the existing product technology route, avoids patent risks, and the overall hardware, circuit and parameter logic are all proprietary designs. With dual resonant point components, it is difficult for existing technologies to simply imitate, forming a solid technical barrier.

[0016] 3. The dual-frequency segmented resonance ultrasonic surgical aspiration system and control method of the present invention, relying on the linkage between the foot pedal module and the main control unit, can instantly complete the switching of the working frequency and supporting parameters. There is no need to stop the machine to adjust parameters or change instruments during the operation. The soft and hard tissue operation modes can be switched by simply stepping on the foot pedal switch. The operation is simple, ensures the continuity of the operation, and effectively improves the efficiency of clinical operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention discloses a dual-frequency segmented resonant ultrasonic surgical aspiration system, including a power supply module, a display driver module, a main control module, a dual-frequency matching driver module, a dual-resonant point ultrasonic transducer handle, a blade assembly, a foot pedal control module, and a negative pressure waste fluid collection system. All modules adopt modular wiring. The power supply module provides unified power to the entire system, and the main control module is the core control center, coordinating all logics such as frequency switching, power output, negative pressure linkage, and human-machine interaction. Workflow: Medical staff set parameters through the display driver module - the main control module issues instructions - the dual-frequency matching driver module outputs ultrasonic power at the corresponding frequency - the transducer handle and the blade generate ultrasonic vibration to complete the tissue operation - the negative pressure waste fluid collection system simultaneously removes intraoperative waste - the foot pedal control module realizes one-click switching of intraoperative frequency bands.

[0020] Specifically, the power module consists of a power plug, a power switch, and power distribution terminals, and is the only power supply unit for the entire machine; The power plug uses a medical-grade three-prong plug, compatible with hospital 220V / 50Hz medical mains power; the power switch is a rocker-type waterproof medical switch, with functions to prevent accidental contact and liquid ingress; the power distribution terminal has a built-in multi-channel voltage regulator circuit, which converts the mains power into multiple voltages required by the module, namely DC12V, DC24V, and AC220V, to independently power the main control module, drive module, negative pressure vacuum pump, and display module, with each power supply isolated from the others to avoid electromagnetic interference; When in use, first insert the power plug, close the power switch, and the power distribution terminal will simultaneously supply power to the entire system, and the device will enter the power-on self-test state.

[0021] Specifically, the display driver module is a touch-screen human-machine interface that integrates button touch control, parameter display, and status alarm functions; The screen displays the current operating frequency band, ultrasonic amplitude, output power, real-time negative pressure value, and equipment operating status in real time; it supports manual selection of 23kHz / 40kHz dual frequency bands, and the amplitude and power can be customized and adjusted within the parameter range; when the negative pressure exceeds the threshold, the module fails, or the transducer is detuned, an alarm prompt will pop up on the screen; When in use, medical staff select the surgical type (hard tissue / soft tissue) on the touchscreen, and the system automatically matches the preset parameters of the corresponding frequency band. The parameters can also be manually fine-tuned, and the parameters are transmitted to the main control module in real time after confirmation.

[0022] Specifically, the main control module uses an industrial-grade microcontroller as the main control chip, and integrates four major functional sub-units: a frequency band switching unit, a frequency band parameter storage unit, a negative pressure closed-loop operation unit, and a signal transceiver unit. The frequency division parameter storage unit (fixed parameters) has two sets of factory calibration parameters pre-stored in the non-volatile memory: (1) Hard tissue setting (23kHz): Amplitude adjustment range 0~350μm, maximum output power 100W; suitable for the resection of hard bone tissue and calcified tissue in orthopedics; (2) Soft tissue setting (40kHz): Amplitude adjustment range 0~280μm, maximum output power 80W; suitable for the resection of soft tissues around organs, fat, and blood vessels.

[0023] The frequency band switching unit has a built-in electronic switching switch array. After receiving the switching signal from the display driver module or the foot pedal control module, it quickly completes the circuit switching and only selects the matching unit corresponding to the current working frequency band. The two frequency point circuits are interlocked to prevent the two drives from working at the same time and avoid hardware burnout. Signal interaction: Receives the setting parameters from the display module, the negative pressure feedback signal from the pressure monitoring unit, and the switching signal from the foot pedal module. After processing, it sends control commands to the dual-frequency matching drive module and the liquid aspiration control unit. Specifically, the dual-frequency matching drive module is the core of ultrasonic power output, with two completely independent narrowband matching units, without shared circuits, to achieve physical isolation of frequency points; 23kHz frequency band matching unit: specially matched to the 23kHz inherent resonant frequency of the dual resonant point transducer handle 10, and performs impedance matching and resonance compensation for hard tissue conditions to ensure stable low-frequency large amplitude and high power output; 40kHz band matching unit: specially matched to the transducer’s inherent 40kHz resonant frequency, with impedance parameters optimized for soft tissue to ensure stable output at high frequency, small amplitude, and low power. Compared to traditional wideband drives, this module uses narrowband fixed-point matching, ensuring that the transducer always operates at its inherent resonant point. This prevents detuning and power drops when the surgical load changes, significantly improving operational stability.

[0024] Specifically, the dual-resonance point ultrasonic transducer is a custom-designed component with two inherent resonant frequencies of 23kHz and 40kHz, requiring no additional frequency tuning. It has a simple structure and is easy to manufacture. The blade assembly is made of medical-grade titanium alloy and can be detachably mounted on the front end of the transducer handle. Different blade shapes can be replaced according to the surgical scenario. Working principle: The transducer receives the high-frequency electrical signal output by the drive module and converts the electrical energy into mechanical ultrasonic vibration. The blade vibrates and produces mechanical fragmentation and ultrasonic thermal coagulation on human tissue. At the same time, it works in conjunction with negative pressure to remove the tissue. Specifically, the foot pedal control module consists of a foot pedal interface and a foot pedal switch. It is a non-handheld control component during surgery and is placed under the operating table. The foot switch consists of a base, a foot pedal pressing module, and an activation function unit. It is waterproof and resistant to damage from being stepped on. The foot pedal interface uses an aviation plug to connect to the main control module via wired connection, ensuring stable signal transmission. The foot pedal control module is normally in standby mode. A single press of the foot pedal module triggers the functional unit to send a frequency band switching signal to the main control module, enabling one-click switching between the 23kHz and 40kHz frequency bands. When the foot pedal is pressed continuously, the system maintains the current ultrasound output, and releasing it stops the ultrasound vibration. Medical staff can focus their hands on surgical operations and switch between operating modes simply by pressing the foot pedal, making the operation convenient.

[0025] In this embodiment, the negative pressure waste fluid collection system is an intraoperative waste fluid and tissue debris collection unit, which includes a suction control unit, a proportional valve assembly, a negative pressure vacuum pump, a negative pressure suction port, a pressure monitoring unit, a tubing kit, a filter, and a suction tank, forming a fully closed-loop negative pressure control system. Medical staff set the target negative pressure value (commonly used in clinical practice: -20kPa to -80kPa) on the display module; the pressure monitoring unit collects the actual negative pressure value once per second and transmits it to the suction control unit; the suction control unit compares the actual negative pressure value with the set negative pressure value: if the actual negative pressure is too low, it controls the proportional valve assembly to increase the opening and increase the suction force; if the actual negative pressure is too high, it decreases the valve opening. The allowable deviation of negative pressure is set at ±0.5 kPa, and it is dynamically adjusted throughout the procedure to ensure constant suction pressure during the operation. The filter intercepts tissue debris, preventing particulate matter from entering the vacuum pump and causing wear; the suction tank is a detachable medical liquid storage tank, which facilitates postoperative waste liquid cleaning and disinfection.

[0026] In this embodiment, the main body of the tubing kit is a medical silicone suction tube, which has the characteristics of flexibility, resistance to body fluid corrosion, and resistance to bending. Specifically, one end of the suction tube is fixed inside the handle of the dual-resonance ultrasonic transducer via a quick connector, and the cutting head working area is connected to the suction port of the suction tube to achieve integrated ultrasonic cutting and synchronous suction. Valves and connectors: The pipeline is equipped with a miniature throttling valve in the middle section, and the valve operation lever extends to the outside of the handle, allowing medical staff to manually fine-tune the suction flow; all connectors adopt a clamp-type quick-release structure, which facilitates pipeline disassembly, cleaning, and high-temperature sterilization, and meets the infection control requirements of the operating room.

[0027] This invention also provides a dual-frequency segmented resonance ultrasonic surgical suction control method, applied to the above system, comprising the following steps: S1. System power-on initialization: Medical staff connect the power plug, close the power switch, and all modules are powered on. The main control module, drive module, and negative pressure module complete hardware self-tests in sequence. The display drive module lights up the interface. If there is no fault, it enters the standby interface. If a tube is detected to be disconnected or the transducer is abnormal, the interface alarms and locks the equipment. S2. Parameter Settings: Medical staff select the frequency band based on the type of surgical tissue. Orthopedic hard tissue surgery: Select the 23kHz frequency band, and the system will automatically call up parameters of amplitude 0-350μm and maximum power 100W. The amplitude and power can be manually fine-tuned. Soft tissue surgery of organs: Select the 40kHz frequency band, and the system will automatically call up parameters of amplitude 0-280μm and maximum power 80W; at the same time, set the target value of negative pressure suction, and upload it to the main control module after parameter confirmation; S3. The frequency band switching unit of the frequency band matching drive main control module selects the corresponding dual-frequency matching drive unit according to the selected frequency band, and the drive module outputs high-frequency AC power of the corresponding frequency to the dual resonant point transducer handle; S4. Ultrasonic Operation: Step on the foot switch to start the system's ultrasonic output. The transducer and the cutting head generate ultrasonic vibrations at a fixed frequency to cut, decompose, and thermally coagulate the target tissue. The 23kHz low-frequency, large-amplitude vibration is suitable for efficient fragmentation of hard tissue, while the 40kHz high-frequency, small-amplitude vibration protects the surrounding nerves and blood vessels of soft tissue. S5. The negative pressure closed-loop suction vacuum pump starts synchronously. The pressure monitoring unit collects negative pressure data in real time and feeds it back to the suction control unit. The suction control unit dynamically adjusts the opening of the proportional valve to control the negative pressure deviation within ±0.5kPa. Intraoperative tissue debris and exudate are finally collected into the suction canister through the suction tube and filter. S6. Intraoperative Frequency Switching: When the surgical area changes from hard tissue to soft tissue (or vice versa), the medical staff steps on the foot switch again, and the foot switch module sends a switching command to the main control module. The frequency switching unit immediately cuts off the current drive circuit and switches to the matching unit and preset parameters of another frequency point. The switching time is <0.5s. No need to stop the machine or change instruments, and the surgery can be carried out continuously. S7. After the operation is completed, release the foot switch. The main control module will cut off the ultrasonic drive power and turn off the negative pressure vacuum pump after a 3-second delay (to drain the residual waste liquid in the pipeline). The equipment will return to standby mode. After the operation, turn off the power switch and disassemble the pipeline and suction tank for cleaning and sterilization.

[0028] Example 1, Surgical subject: Resection of lesions in the hard bone tissue of the limbs; When the device is powered on, the display module selects the 23kHz hard tissue mode, the system defaults to an amplitude of 300μm and a power of 90W, and the negative pressure is set to -50kPa. Stepping on the foot switch activates the 23kHz ultrasonic vibration output from the blade, efficiently breaking down bone tissue. The negative pressure system simultaneously removes bone fragments and exudate, maintaining a stable negative pressure of -50kPa±0.5kPa. After bone tissue removal, there is soft tissue around the lesion. Stepping on the foot switch will switch to 40kHz mode with an amplitude of 200μm and a power of 60W, allowing for gentle treatment of the surrounding soft tissue and avoiding damage.

[0029] Example 2: Surgical subject: Resection of superficial lesions in the liver; Select 40kHz soft tissue mode, default amplitude 220μm, power 70W, negative pressure setting -35kPa; The foot-operated device uses high-frequency, low-amplitude ultrasonic vibration to precisely decompose liver tissue without damaging surrounding blood vessels or bile ducts; closed-loop negative pressure continuously removes exudate, providing a clear surgical field. The frequency band can be switched at any time via foot pedal to deal with special tissues such as calcified lesions during surgery.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-frequency segmented resonant ultrasonic surgical aspiration system, comprising a main control module, a dual-frequency matching drive module, a dual-resonant point ultrasonic transducer handle, a blade assembly, a foot pedal control module, a negative pressure waste fluid collection system, a display drive module, and a power supply module; The main control module is used to acquire power parameters and generate corresponding start signals, and uses the start signals to control the power drive unit to output high-frequency drive power. The blade assembly is mounted on the handle of the dual-resonance ultrasonic transducer to receive high-frequency drive power and generate ultrasonic vibration, thereby enabling the cutting, coagulation, decomposition and suction of the target tissue. The foot pedal control module is electrically connected to the negative pressure waste liquid collection system for one-button switching of the operating frequency band; The display driver module is used to receive user-input operation parameters and transmit them to the main control module; The power module is used to supply power to the entire system; Its features are: The main control module has a built-in frequency band switching unit and a frequency band parameter storage unit. The frequency band switching unit is used to switch the circuit between two frequency points. The frequency band parameter storage unit pre-stores two sets of independent operating parameters, namely 23kHz frequency band: amplitude 0~350μm, maximum power 100W; 40kHz frequency band: amplitude 0~280μm, maximum power 80W; The dual-frequency matching drive module contains two independent matching units: a 23kHz matching unit corresponding to hard tissue and a 40kHz matching unit corresponding to soft tissue. The two matching units correspond one-to-one with the two inherent resonant frequencies of the dual-resonant ultrasonic transducer handle, namely 23kHz and 40kHz.

2. The dual-frequency segmented resonant ultrasonic surgical aspiration system according to claim 1, characterized in that, The negative pressure waste liquid collection system includes a piping kit, filter, suction tank, drip control unit, proportional valve assembly, negative pressure suction port, and pressure monitoring unit; The droplet control unit is connected to the negative pressure vacuum pump and adjusts the opening ratio of the negative pressure vacuum pump through a proportional solenoid valve to control the negative pressure suction pressure generated at the outlet of the negative pressure vacuum pump. The outlet of the negative pressure vacuum pump is connected to the negative pressure suction port, which is connected to the suction tank. The pressure monitoring unit is used to collect the actual negative pressure value of the negative pressure suction port and feed the actual negative pressure value back to the drip control unit. The drip control unit is also used to dynamically adjust the opening of the proportional solenoid valve according to the deviation between the actual negative pressure value and the negative pressure suction setting value in the main control module, so as to ensure the deviation range between the actual negative pressure value and the negative pressure suction setting value.

3. The dual-frequency segmented resonant ultrasonic surgical aspiration system according to claim 1, characterized in that, The foot pedal device includes a foot pedal interface and a foot switch connected to the foot pedal interface. The foot switch includes a foot pedal pressing module and an activation function unit; Among them, the excitation function unit and the parameter adjustment function unit are respectively connected to the main control module. The activation function unit is used to acquire the user's foot pedal action on the foot pedal module and switch the frequency of the ultrasonic surgical suction system based on the foot pedal action.

4. The dual frequency segmented resonant ultrasonic surgical suction system according to claim 1, wherein, Piping kit includes A suction tube made of flexible, corrosion-resistant material is used to suction waste generated during surgery. One end of the suction tube is connected to the handle of a dual-resonance ultrasonic transducer via a connector. At least one connector and valve connect the other end of the suction tube to an external waste collection device for adjusting the suction force and preventing leakage. The connector and valve are integrated into the operating handle or controlled via an operating interface on the operating handle.

5. The dual frequency segmented resonant ultrasonic surgical suction system according to claim 1, wherein, The power module includes power distribution terminals, a power switch, and a power plug; The power plug is the external AC power input terminal, and the power switch is connected in series between the power plug and the power distribution terminal to control the overall system power on and power off. The power distribution terminal is equipped with multiple independent output branches, which are electrically connected to the main control module, dual-frequency matching drive module, display drive module, foot pedal control module, and negative pressure waste liquid collection system, respectively. The power distribution terminal performs voltage regulation and current distribution on the input power, providing rated operating voltage and operating current to each functional module in the system. At the same time, the power distribution terminal has built-in overcurrent and overvoltage protection circuits. When a short circuit or overload occurs in a single or multiple loads, the power supply to the corresponding branch is automatically cut off to protect the equipment circuit safety.

6. A method of dual frequency segmented resonant ultrasonic surgical aspiration control, applied to the dual frequency segmented resonant ultrasonic surgical aspiration system of any of claims 1-5, the method comprising: Includes the following steps: S1. Preoperative mode selection: Select hard tissue mode or soft tissue mode according to the surgical object. The system will switch to the 23kHz or 40kHz frequency band accordingly and load the corresponding frequency band preset parameters. S2. Independent parameter adjustment by frequency band: Adjust the amplitude and output power separately within the current frequency band. The amplitude adjustment range is 0-350μm for the 23kHz band and 0-280μm for the 40kHz band. S3. Narrowband Resonance Lock-in: Real-time acquisition of the current and voltage phase difference of the transducer, and frequency locking is completed only within ±500Hz of the current fixed frequency point to maintain resonance stability; S4. Intraoperative frequency band switching: The system automatically switches the matching circuit and loads the corresponding parameters by issuing a command via the foot switch, thus completing the switching between the two operating frequency bands.

7. The dual frequency segmented resonant ultrasonic surgical suction control method according to claim 6, wherein, The overall switching time of the frequency band during the operation does not exceed 200ms.

8. The dual frequency segmented resonant ultrasonic surgical suction control method according to claim 6, wherein, The maximum output power is 100W in the 23kHz band and 80W in the 40kHz band.

9. The dual-frequency segmented resonance ultrasonic surgical suction control method according to claim 6, characterized in that, It also includes a negative pressure closed-loop control step: real-time acquisition of the actual negative pressure value of the negative pressure suction port, comparison with the preset negative pressure value and dynamic adjustment of the opening of the proportional valve assembly to stabilize the negative pressure within the set deviation range.

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