Dual-channel time-sharing cooperative ultrasonic surgical control system and control method

Abstract

This invention discloses a dual-channel time-sharing coordinated ultrasonic surgical control system and method, belonging to the field of ultrasonic surgical equipment. It includes a main unit control module, a peak power amplification unit, a dual-channel switching unit, a first handle interface, a second handle interface, an ultrasonic surgical handle (first and second), a foot pedal priority control module, and a parameter storage unit. The peak power amplification unit is a single-channel high-power amplification circuit with a peak output power of not less than 200W. The dual-channel time-sharing coordinated ultrasonic surgical control system and method of this invention uses a single-channel peak power amplification unit to power both handles, requiring only one set of power amplification and matching circuits. This significantly reduces the number of hardware components, lowers equipment production costs, assembly difficulty, and overall size. Simultaneously, it completely bypasses the core patent layout of foreign companies with dual-channel independent power output, resolving the patent infringement risk for domestic manufacturers.

Description

Technical Field

[0001] This invention belongs to the field of ultrasonic surgical equipment, specifically relating to a dual-channel time-sharing ultrasonic surgical control system and method. Background Technology

[0002] Ultrasonic surgical instruments, with their characteristics of being minimally invasive, having excellent hemostatic effects, high operational precision, and causing minimal tissue damage, have become the core equipment for modern clinical surgery. Currently, the mainstream dual-handle ultrasonic surgical instruments on the market generally adopt a dual-path independent power output architecture. This technology has been patented by foreign companies, and domestic manufacturers that directly copy this architecture are highly likely to infringe on patents.

[0003] The existing dual-path independent power output architecture has several inherent technical defects: High hardware costs and large equipment size: This architecture requires a separate power amplifier circuit, impedance matching circuit, drive circuit, and other hardware for each ultrasound handpiece. The large number of components and high assembly complexity not only drive up the production cost and the final selling price of the equipment, but also result in a large size and weight of the equipment, which is not conducive to the arrangement in the small space of the operating room and makes it difficult to meet the procurement and use needs of primary medical institutions. Poor operational stability and susceptibility to power interference: When two independent power circuits work simultaneously, the overall power load increases exponentially. Electromagnetic crosstalk and frequency interference are prone to occur between the two circuits, which can lead to problems such as detuning of the ultrasonic handpiece's operating frequency, fluctuations in output power, and unstable amplitude, seriously affecting the safety and effectiveness of surgical procedures. Lack of priority control for dual-operator operation: Existing dual-handle devices only realize simple path switching and do not set priority logic for the collaborative operation of the chief surgeon and surgical assistant. When both handles are triggered at the same time during the operation, command conflicts and power distribution chaos are likely to occur, which may lead to safety hazards such as misoperation and loss of control of surgical operation. In summary, there is an urgent need in this field to develop a dual-handle ultrasonic surgical control system and method that features single-channel high-power amplification, dual-channel time-sharing switching, foot pedal priority control, low cost, high stability, and avoidance of existing patent barriers. Summary of the Invention

[0004] To address one or more of the above-mentioned defects or improvement needs in the existing technology, this invention provides a dual-channel time-sharing collaborative ultrasound surgical control system and method. It adopts a single-channel high peak power amplification and a dual-channel high-speed time-sharing switching architecture to replace the traditional dual-channel independent power architecture. At the same time, it adds foot pedal priority control logic. While reducing hardware costs, shrinking equipment size, and improving operational stability, it realizes dual-handle time-sharing collaborative work and priority preemption, ensuring clinical surgical safety and improving surgical efficiency.

[0005] To achieve the above objectives, the present invention provides a dual-channel time-sharing ultrasonic surgical control system, including a host control module, a peak power amplification unit, a dual-channel switching unit, a first handle interface, a second handle interface, an ultrasonic surgical handle one, an ultrasonic surgical handle two, a foot pedal priority control module, and a parameter storage unit. The high peak power amplification unit is a single-channel high power amplification circuit with a peak output power of not less than 200W, which is used to provide ultrasonic drive power to the two ultrasonic surgical handpieces in a unified manner. The first handle interface and the second handle interface are used to connect ultrasonic surgical handles with different functions. The dual-channel switching unit adopts a high-speed solid-state relay switching circuit with a switching response time of no more than 10ms. The dual-channel switching unit is electrically connected to the high peak power amplifier unit, the first handle interface, and the second handle interface, respectively, and is used to switch the power output path at high speed between the two handle interfaces. The foot pedal priority control module includes a main blade foot pedal and an assistant foot pedal, which are used to collect foot pedal trigger signals and configure the operation priority of the main blade handle and the assistant handle; The parameter storage unit is used to store the preset working parameters corresponding to the ultrasonic surgical handles connected to the first handle interface and the second handle interface; The host control module is connected to the high peak power amplifier unit, the dual-channel switching unit, the foot pedal priority control module, and the parameter storage unit to execute the overall control logic, signal parsing, and command issuance.

[0006] Furthermore, the preset operating parameters of the handle stored in the parameter storage unit include operating frequency, output power, ultrasonic amplitude, and irrigation flow rate; when the dual-channel switching unit completes the power path switching, the host control module synchronously calls the preset operating parameters of the corresponding ultrasonic surgical handle and loads and runs them.

[0007] Furthermore, the power switching frequency of the dual-channel switching unit is 100Hz.

[0008] Furthermore, the ultrasonic surgical handpiece is selected from any two of the following: ultrasonic aspiration handpiece, ultrasonic osteotomy handpiece, and ultrasonic drill handpiece.

[0009] This invention also provides a dual-channel time-sharing coordinated ultrasound surgical control method, applied to the above system, comprising the following steps: S1. Preoperative Handle Configuration: Connect two ultrasonic surgical handles with different functions to the first handle interface and the second handle interface respectively. Set the working parameters of the two handles through the host control module, and set the operation priority of the main handle and the assistant handle based on the foot pedal priority control module. S2. Standby state management: When there is no foot pedal trigger signal, the host control module controls the dual-channel switching unit to cyclically scan the resonance state of the two handles to maintain the handles in standby resonance. At this time, the high peak power amplifier unit does not output working power. S3. Single handle independent operation: When only the main blade foot pedal is triggered, the dual-channel switching unit distributes all peak power to the main blade handle and outputs continuously; when only the assistant foot pedal is triggered, the dual-channel switching unit distributes all peak power to the assistant handle and outputs continuously. S4. Dual-handle time-sharing collaborative operation: When the main blade foot pedal and the assistant foot pedal are triggered simultaneously, the dual-channel switching unit switches the power output between the two handles at high speed according to the set frequency, and allocates the corresponding proportion of power time slices to the main blade handle and the assistant handle in a single switching cycle; S5. Priority Preemption Control: During the dual-handle time-sharing collaborative operation, if the main handle triggers the emergency stop mode or the maximum power mode, the host control module immediately controls the dual-channel switching unit to pause the power allocation to the assistant handle and prioritize the allocation of 100% peak power to the main handle; after the main handle completes its operation, the system automatically resumes the dual-handle time-sharing collaborative operation state.

[0010] Furthermore, within a single switching cycle, the power time slice corresponding to the main handle accounts for no less than 60%, and the power time slice corresponding to the assistant handle accounts for no more than 40%.

[0011] Furthermore, the power switching frequency of the dual-channel switching unit is 100Hz.

[0012] Furthermore, the dual-channel switching unit continuously scans the resonant state of the two handles, enabling the handles to respond quickly to power output commands.

[0013] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include: (1) The dual-channel time-division collaborative ultrasonic surgical control system and control method of the present invention adopts a single-channel high peak power amplification unit to power two handles, and only one power amplification circuit and matching circuit are configured, which greatly reduces the number of hardware components, reduces equipment production costs, assembly difficulty and overall size; at the same time, it completely bypasses the core patent layout of foreign companies with dual-channel independent power output, and solves the patent infringement risk of domestic manufacturers.

[0014] (2) The dual-channel time-division coordinated ultrasonic surgical control system and control method of the present invention has only a single main power circuit in the whole machine. The two handpieces share the power source through high-speed time-division switching, which avoids the problems of electromagnetic crosstalk, frequency detuning and power fluctuation caused by the simultaneous operation of the two power circuits from the root. The output frequency, amplitude and power of the ultrasonic handpiece are more stable, and the reliability of the equipment operation is significantly improved.

[0015] (3) The dual-channel time-sharing collaborative ultrasound surgical control system and control method of the present invention adds a foot pedal priority control module and preemption logic to distinguish the operation permissions of the surgeon and the assistant; when the two handles work at the same time, time-sharing power allocation is adopted, with the surgeon handle occupying most of the time slice to ensure the priority of the main operation; when the surgeon handle triggers key operations such as emergency stop and maximum power, it can directly preempt all power to avoid intraoperative command conflicts and misoperations, and greatly reduce the surgical safety risks. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the system of the present invention; Detailed Implementation

[0017] 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.

[0018] like Figure 1 As shown, the system consists of a host control module, a high peak power amplification unit, a dual-channel switching unit, a foot pedal priority control module, a parameter storage unit, a first handle interface, a second handle interface, an ultrasonic surgical handle one, and an ultrasonic surgical handle two. All modules are integrated inside the ultrasonic surgical equipment host. The two ultrasonic surgical handles are connected to their respective interfaces via wired connections. The foot pedal assembly is located under the operating table for medical staff to trigger by foot pedal.

[0019] Specifically, the host control module uses an industrial-grade ARM main control chip as the core control unit, is equipped with an embedded real-time operating system, and has functions such as multi-channel IO signal acquisition, serial port / bus communication, instruction calculation, and logic judgment. The host control module is used to collect foot pedal trigger signals, dual-channel switching unit status signals, and handle resonance signals in real time; read preset parameters in the parameter storage unit; send control commands such as switching, power, frequency, and switching timing to the high peak power amplification unit and dual-channel switching unit; and execute core logic such as priority judgment, time-sharing scheduling, and emergency stop preemption.

[0020] Specifically, the high peak power amplification unit adopts a single-channel Class D high-power ultrasonic amplification circuit, which is the only power output source of the whole machine. The peak output power is designed to be 220W. The circuit integrates impedance matching network, overcurrent protection, overvoltage protection, and overheat protection circuit. The output waveform is an ultrasonic sine drive wave, and the output frequency and power can be dynamically adjusted according to different handle parameters. Under normal conditions, the high peak power amplifier unit is in a standby low power consumption state; after receiving the working command from the host control module, it outputs the rated ultrasonic drive power; when there is no trigger signal, it stops power output and only retains a weak standby current.

[0021] Specifically, the core of the dual-channel switching unit uses a high-speed solid-state relay array to build the switching circuit, replacing the traditional mechanical relays and solving the problems of slow response, short lifespan, and jitter interference of mechanical contacts. The input of the dual-channel switching unit is electrically connected to the power output of the high peak power amplifier unit, and the two outputs are connected one-to-one to the first handle interface and the second handle interface, respectively. The control end communicates with the host control module, and the host issues switching timing commands. The single-channel switching response time of the dual-channel switching unit is 8ms; the operating frequency of the dual-channel switching unit is a fixed switching frequency of 100Hz, that is, a single complete switching cycle is 0.01.

[0022] Specifically, the foot pedal priority control module has two independent foot pedal switches for the main surgeon and assistant, both of which are waterproof medical foot pedals suitable for the humid environment of the operating room. The module has a built-in signal acquisition circuit that can identify two states: foot pedal press trigger and release reset, and upload the digital signal to the host control module in real time. The handle corresponding to the main surgeon foot pedal has the highest priority, and the handle corresponding to the assistant foot pedal has the secondary priority. The priority logic can be manually modified through the host human-machine interface.

[0023] Specifically, parameter storage unit 5 uses a non-volatile memory chip (Flash), which does not lose data when power is off. It internally stores two independent parameters for the two handpieces. The parameters stored for each handpiece include four categories: ultrasound working frequency, rated output power, ultrasound amplitude, and intraoperative irrigation flow rate. When the host switches power paths, it automatically reads the corresponding partition parameters and synchronously loads them into the power amplification unit and the handpiece irrigation circuit.

[0024] Specifically, the first and second handle interfaces are universal medical ultrasound handle interfaces, and integrate multiple channels for power supply, signal, and water circuit; and the accompanying ultrasonic surgical handles are: ultrasonic bone cutting handle 1 and ultrasonic suction handle 2. Another optional combination is: ultrasonic drill handle + ultrasonic suction handle, or ultrasonic osteotomy handle + ultrasonic drill handle, which can be freely combined according to different surgical procedures in orthopedics, neurosurgery, and general surgery.

[0025] In Example 1, when dealing with a single-handle operation scenario, medical staff first insert the ultrasonic osteotomy handle into the first handle interface and the ultrasonic aspiration handle into the second handle interface. Using the device's touchscreen, they set the parameters for both handles: osteotomy handle frequency 55kHz, power 180W, amplitude 25μm; aspiration handle frequency 50kHz, power 120W, amplitude 18μm, and irrigation flow rate 30mL / min. The first handle interface corresponds to the main surgeon's foot pedal (main surgeon handle), and the second handle interface corresponds to the assistant's foot pedal (assistant handle), completing the priority configuration. All parameters are automatically stored in the corresponding partition of the parameter storage unit. During surgical breaks and when there is no foot pedal pressure, the system enters standby mode: the high peak power amplifier unit shuts down high power output, only retaining power to the detection circuit; the host control module controls the dual-channel switching unit to cyclically and alternately scan the first and second handle interfaces at a frequency of 100Hz; during the scanning process, the resonant frequency and impedance status of the two handles are detected in real time, so that the handles always maintain a pre-resonant standby state; this mechanism ensures that after any foot pedal trigger, the system can complete power output within 10ms, with no start-up delay.

[0026] In practical use: (1) When only the surgeon presses the surgeon foot pedal, the foot pedal signal is uploaded to the host control module, and the host determines that it is in single surgeon handle working mode; the dual-channel switching unit continuously switches the power path to the first handle interface; the high peak power amplifier outputs all 220W peak power, loads the bone cutting handle preset parameters, and the handle works normally; after the surgeon foot pedal is released, the system immediately returns to the standby scanning state; (2) When only the assistant presses the assistant foot pedal, the main unit determines that it is in single assistant handle working mode; the dual-channel switching unit continuously switches the power path to the second handle interface; the power amplification unit outputs all peak power to the ultrasonic suction handle and executes the corresponding working parameters; when the assistant foot pedal is released, the system returns to standby.

[0027] In Example 2, when both the main blade foot pedal and the assistant foot pedal are pressed simultaneously, the system automatically enters the dual-handle time-sharing collaborative working mode; the system frequency switches to a fixed 100Hz, and the duration of a single cycle is 0.01s; during this process, the main blade handle time slice accounts for 65%, and the assistant handle time slice accounts for 35%. The specific single-cycle timing breakdown is as follows: Within a single 0.01s switching cycle: (1) First 0.0065s: The dual-channel switching unit connects to the first handle interface, and the 220W full power output is sent to the main knife bone cutting handle to load the bone cutting handle parameters; (2) 0.0035s later: The dual-channel switching unit switches to the second handle interface, and the 220W full power output is sent to the assistant attraction handle to load the attraction handle parameters; (3) The cycle repeats continuously, and the switching action is executed continuously.

[0028] With a switching frequency as high as 100Hz, the human eye and surgical operation cannot perceive the switching of the pathway, and the two handles work almost simultaneously and continuously; the main handle occupies most of the working time to ensure the efficiency and force of the main operation, while the assistant handle assists in the operation, which fully meets the needs of two-person collaborative surgery.

[0029] Example 3: During the time-sharing collaborative operation of the two handsets, priority preemption is triggered if any of the following situations occur: (1) Activate the emergency stop mode on the main scalpel handle (emergency scalpel stop during surgery, avoid tissue); (2) Turn on the main blade handle to the maximum power mode (for heavy load operations such as bone tissue cutting and deep operation).

[0030] After the host control module receives the emergency stop / maximum power command of the main blade handle, it immediately sends a lock command to the dual-channel switching unit; the dual-channel switching unit permanently disconnects the power path of the assistant handle and no longer allocates time slices; the high peak power amplification unit continuously outputs 100% peak power to the main blade handle; the assistant handle stops working, and only the main blade handle operates independently; When the main blade handle exits the emergency stop mode or the maximum power mode is turned off, and the main blade foot pedal is still pressed: after a 200ms delay, the system automatically releases the path lock and restores the 100Hz time-sharing switching and the original time-slice allocation of the dual handle collaborative working state. If the main blade foot pedal is released directly, the whole machine will directly return to the standby scanning state.

[0031] Example 4: This system supports any two combinations of three types of ultrasonic surgical handpieces, adaptable to surgeries in different departments: Orthopedic osteotomy: ultrasonic osteotomy handpiece + ultrasonic drill handpiece; Neurosurgical procedures: Ultrasonic suction handpiece + ultrasonic drill handpiece; General surgery: Ultrasonic suction handpiece + ultrasonic bone cutting handpiece; Each time a set of handles is replaced, medical staff only need to re-enter the corresponding parameters into the host. The parameter storage unit automatically partitions and saves them, and they can be recalled with one click when used again. No changes are needed to the interface and control logic, making the device highly versatile.

[0032] 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-channel time-sharing coordinated ultrasound surgical control system, characterized in that, It includes a host control module, a high peak power amplification unit, a dual-channel switching unit, a first handpiece interface, a second handpiece interface, an ultrasonic surgical handpiece one, an ultrasonic surgical handpiece two, a foot pedal priority control module, and a parameter storage unit; The high peak power amplification unit is a single-channel high power amplification circuit with a peak output power of not less than 200W, which is used to provide ultrasonic drive power to the two ultrasonic surgical handpieces in a unified manner. The first handle interface and the second handle interface are used to connect ultrasonic surgical handles with different functions. The dual-channel switching unit adopts a high-speed solid-state relay switching circuit with a switching response time of no more than 10ms. The dual-channel switching unit is electrically connected to the high peak power amplifier unit, the first handle interface, and the second handle interface, respectively, and is used to switch the power output path at high speed between the two handle interfaces. The foot pedal priority control module includes a main blade foot pedal and an assistant foot pedal, which are used to collect foot pedal trigger signals and configure the operation priority of the main blade handle and the assistant handle; The parameter storage unit is used to store the preset working parameters corresponding to the ultrasonic surgical handles connected to the first handle interface and the second handle interface; The host control module is connected to the high peak power amplifier unit, the dual-channel switching unit, the foot pedal priority control module, and the parameter storage unit to execute the overall control logic, signal parsing, and command issuance.

2. The dual-channel time-sharing coordinated ultrasound surgical control system according to claim 1, characterized in that, The parameter storage unit stores the preset operating parameters of the handpiece, including operating frequency, output power, ultrasonic amplitude, and irrigation flow rate. When the dual-channel switching unit completes the power path switching, the host control module synchronously calls the preset operating parameters of the corresponding ultrasonic surgical handpiece and loads them for operation.

3. The dual-channel time-sharing coordinated ultrasound surgical control system according to claim 1, characterized in that, The power switching frequency of the dual-channel switching unit is 100Hz.

4. The dual-channel time-sharing coordinated ultrasound surgical control system according to claim 1, characterized in that, The ultrasonic surgical handpiece can be selected from any two of the following: ultrasonic aspiration handpiece, ultrasonic bone cutting handpiece, and ultrasonic grinding drill handpiece.

5. A dual-channel time-sharing coordinated ultrasound surgical control method, applied to the control system of any one of claims 1-4, characterized in that, Includes the following steps: S1. Preoperative Handle Configuration: Connect two ultrasonic surgical handles with different functions to the first handle interface and the second handle interface respectively. Set the working parameters of the two handles through the host control module, and set the operation priority of the main handle and the assistant handle based on the foot pedal priority control module. S2. Standby state management: When there is no foot pedal trigger signal, the host control module controls the dual-channel switching unit to cyclically scan the resonance state of the two handles to maintain the handles in standby resonance. At this time, the high peak power amplifier unit does not output working power. S3. Single handle independent operation: When only the main blade foot pedal is triggered, the dual-channel switching unit distributes all peak power to the main blade handle and outputs continuously; when only the assistant foot pedal is triggered, the dual-channel switching unit distributes all peak power to the assistant handle and outputs continuously. S4. Dual-handle time-sharing collaborative operation: When the main blade foot pedal and the assistant foot pedal are triggered simultaneously, the dual-channel switching unit switches the power output between the two handles at high speed according to the set frequency, and allocates the corresponding proportion of power time slices to the main blade handle and the assistant handle in a single switching cycle; S5. Priority Preemption Control: During the dual-handle time-sharing collaborative operation, if the main handle triggers the emergency stop mode or the maximum power mode, the host control module immediately controls the dual-channel switching unit to pause the power allocation to the assistant handle and prioritize the allocation of 100% peak power to the main handle; after the main handle completes its operation, the system automatically resumes the dual-handle time-sharing collaborative operation state.

6. The dual-channel time-sharing coordinated ultrasound surgical control method according to claim 5, characterized in that, Within a single switching cycle, the power time slice corresponding to the main handle accounts for no less than 60%, and the power time slice corresponding to the assistant handle accounts for no more than 40%.

7. The dual-channel time-sharing coordinated ultrasound surgical control method according to claim 5, characterized in that, The power switching frequency of the dual-channel switching unit is 100Hz.

8. The dual-channel time-sharing coordinated ultrasound surgical control method according to claim 5, characterized in that, The dual-channel switching unit continuously scans the resonant state of the two handles, enabling the handles to respond quickly to power output commands.

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