Device for outputting driving signals to surgical instruments and surgical system

Abstract

The embodiments of the present disclosure provide an output device and a surgical system for outputting a driving signal to a surgical instrument. The device includes: an ultrasonic energy source and a high-frequency electric energy source, a signal port, an ultrasonic signal acquisition circuit, a high-frequency electric signal acquisition circuit, and a control module located in the same housing. The control module is used to obtain adjustment parameters based on a feedback signal and control the ultrasonic energy source and the high-frequency electric energy source to output a driving signal based on the adjustment parameters. The surgical instrument includes one or more of an ultrasonic electrosurgical knife, an ultrasonic scalpel, a monopolar electrosurgical knife, and a bipolar electrosurgical knife. According to the technical solution of the embodiments of the present disclosure, the ultrasonic energy source and the high-frequency electric energy source are encapsulated in the same housing of the output device, and the output device can drive ultrasonic surgical instruments and high-frequency electrosurgical instruments at the same time, saving equipment space, not increasing additional costs, facilitating control, helping to improve surgical efficiency, and obtaining better surgical results.

Description

Technical Field

[0001] The present disclosure relates to an ultrasonic electrosurgical system for performing surgical operations, and more particularly, to a device for outputting a driving signal to a surgical instrument and a surgical system. Background Art

[0002] Ultrasonic surgical instruments (abbreviated as ultrasonic scalpels) and high-frequency electrosurgical instruments (abbreviated as electrosurgeries) can both be used in surgical operations. Ultrasonic scalpels have good cutting performance, but poor coagulation performance in surgical operations. Electrosurgeries are divided into monopolar electrosurgeries and bipolar electrosurgeries according to their working modes. Bipolar electrosurgeries have good coagulation performance, but poor cutting performance in surgical operations. After setting electrodes on the end effector of the ultrasonic scalpel, the effects of ultrasonic scalpels and bipolar electrosurgeries can be achieved. This multifunctional ultrasonic surgical instrument is called an "ultrasonic electrosurgery."

[0003] Ultrasonic scalpels, ultrasonic scalpels, monopolar scalpels or bipolar scalpels are used in surgical operations as needed, and several surgical instruments are often used in one operation. At present, the output devices that drive these surgical instruments are all independent devices. These output devices not only occupy the limited equipment space in the operating room, but also have many inconveniences in controlling these output devices when in use, and may even affect the surgical effect. For example, a separate ultrasonic output device drives an ultrasonic scalpel, and a separate high-frequency electric output device drives a monopolar scalpel or a bipolar scalpel. When driving an ultrasonic scalpel, there is a method of connecting an ultrasonic output device and a high-frequency electric output device through a cable, and there is also a method of driving it through a device with a dual energy source. However, the ultrasonic drive signal and the high-frequency electric drive signal output by the device are superimposed single-channel signals, and a special ultrasonic transducer is required to separate the signal to drive the ultrasonic scalpel. The ultrasonic transducer is a vulnerable component, and this method will undoubtedly increase the application cost. Summary of the invention

[0004] In order to solve the problems in the related art, the embodiments of the present disclosure provide an output device for outputting a driving signal to a surgical instrument and a surgical system.

[0005] One aspect of the present disclosure provides an output device for providing a driving signal to a surgical instrument, comprising:

[0006] An ultrasonic energy source, used to generate an ultrasonic driving signal;

[0007] A high-frequency electric energy source is used to generate a high-frequency electric drive signal; the ultrasonic energy source and the high-frequency electric energy source are located in the same housing;

[0008] A signal port, used to connect to a surgical instrument to output the ultrasonic drive signal and / or the high-frequency electric drive signal to the surgical instrument;

[0009] An ultrasonic signal acquisition circuit, used for acquiring and processing the signal in the connection circuit between the ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and providing the ultrasonic feedback signal to a control module, wherein the ultrasonic feedback signal includes an ultrasonic voltage feedback signal and an ultrasonic current feedback signal;

[0010] A high-frequency electrical signal acquisition circuit, used for acquiring and processing the signal in the connection circuit between the high-frequency electrical energy source and the surgical instrument to obtain a high-frequency electrical feedback signal, and providing the high-frequency electrical feedback signal to the control module, wherein the high-frequency electrical feedback signal includes a high-frequency voltage feedback signal and a high-frequency current feedback signal;

[0011] A control module, used to obtain adjustment parameters based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; and, based on the adjustment parameters, control the ultrasonic energy source to output an ultrasonic drive signal and the high-frequency electrical energy source to output a high-frequency electrical drive signal; wherein the adjustment parameters include power parameters and frequency parameters, the power parameters are used to adjust the power of the ultrasonic drive signal output by the ultrasonic energy source and the power of the high-frequency electrical drive signal output by the high-frequency electrical energy source, and the frequency parameters are used to adjust the frequency of the ultrasonic drive signal output by the ultrasonic energy source and / or the frequency of the high-frequency drive signal output by the high-frequency electrical energy source,

[0012] Wherein, the surgical instrument includes one or more of an ultrasonic electrosurgery, an ultrasonic scalpel, a monopolar electrosurgery and a bipolar electrosurgery.

[0013] According to an embodiment of the present disclosure, the control module obtains adjustment parameters based on the ultrasonic feedback signal and the high-frequency electrical feedback signal, including:

[0014] Acoustic impedance is obtained based on ultrasonic feedback signals, and electrical impedance is obtained based on high-frequency electrical feedback signals;

[0015] matching the acoustic impedance and / or electrical impedance with the impedance data to determine the tissue type;

[0016] Based on the tissue type, the acoustic impedance and / or electrical impedance is matched with the impedance data to obtain a power parameter.

[0017] According to an embodiment of the present disclosure, the control module is further used for:

[0018] Obtaining a first phase difference based on the ultrasonic voltage feedback signal and the ultrasonic current feedback signal;

[0019] Obtaining a second phase difference based on the high-frequency voltage feedback signal and the high-frequency current feedback signal;

[0020] Based on the tissue type, the acoustic impedance and / or electrical impedance is matched with the impedance data, and a power parameter is obtained according to the first phase difference and the second phase difference.

[0021] According to an embodiment of the present disclosure, the control module is also used to control the duration of output signals of the ultrasonic energy source and the high-frequency electric energy source.

[0022] According to an embodiment of the present disclosure, the control module further includes:

[0023] A first processing module, used for performing digital filtering and digital operation on the ultrasonic feedback signal to obtain acoustic impedance;

[0024] The second processing module is used to perform digital filtering and digital operation on the high-frequency electrical feedback signal to obtain electrical impedance.

[0025] According to an embodiment of the present disclosure,

[0026] The ultrasonic energy source includes: an ultrasonic frequency adjustment module, an ultrasonic power adjustment module, and an ultrasonic signal generator;

[0027] The high-frequency electric energy source includes: a high-frequency electric frequency adjustment module, a high-frequency electric power adjustment module, and a high-frequency electric signal generator.

[0028] According to an embodiment of the present disclosure, the ultrasonic signal acquisition circuit includes: a first filtering module, a first differential amplification module, a second filtering module, a first automatic gain control module, and a first analog-to-digital conversion module.

[0029] According to an embodiment of the present disclosure, the high-frequency electrical signal acquisition circuit includes: a third filtering module, a second differential amplification module, a fourth filtering module, a second automatic gain control module, and a second analog-to-digital conversion module.

[0030] According to an embodiment of the present disclosure, the signal port is further used to receive a manual switch signal of the surgical instrument and provide it to a control module;

[0031] The control module is also used to control the power of the output signal of the ultrasonic energy source and / or the power of the output signal of the high-frequency electric energy source according to the manual switch signal and the adjustment parameter.

[0032] According to an embodiment of the present disclosure, an input module is also included for receiving parameter settings;

[0033] The control module is also used to control the power of the output signal of the ultrasonic energy source and / or the power of the output signal of the high-frequency electric energy source according to the parameter setting and the adjustment parameter.

[0034] Another aspect of the present disclosure provides a surgical system, including an output device and a surgical instrument.

[0035] Among them, the output devices include:

[0036] An ultrasonic energy source, used for outputting an ultrasonic driving signal;

[0037] A high-frequency electric energy source, used to output a high-frequency electric drive signal; the ultrasonic energy source and the high-frequency electric energy source are located in the same housing;

[0038] A signal port, used to connect to a surgical instrument to output the ultrasonic drive signal and / or the high-frequency electric drive signal to the surgical instrument;

[0039] An ultrasonic signal acquisition circuit, used for acquiring and processing the signal in the connection circuit between the ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and providing the ultrasonic feedback signal to a control module, wherein the ultrasonic feedback signal includes an ultrasonic voltage feedback signal and an ultrasonic current feedback signal;

[0040] A high-frequency electrical signal acquisition circuit, used for acquiring and processing the signal in the connection circuit between the high-frequency electrical energy source and the surgical instrument to obtain a high-frequency electrical feedback signal, and providing the high-frequency electrical feedback signal to the control module, wherein the high-frequency electrical feedback signal includes a high-frequency voltage feedback signal and a high-frequency current feedback signal;

[0041] A control module, used to obtain adjustment parameters based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; and, based on the adjustment parameters, control the ultrasonic energy source to output an ultrasonic drive signal and the high-frequency electrical energy source to output a high-frequency electrical drive signal; wherein the adjustment parameters include power parameters and frequency parameters, the power parameters are used to adjust the power of the ultrasonic drive signal output by the ultrasonic energy source and the power of the high-frequency electrical drive signal output by the high-frequency electrical energy source, and the frequency parameters are used to adjust the frequency of the ultrasonic drive signal output by the ultrasonic energy source and / or the frequency of the high-frequency drive signal output by the high-frequency electrical energy source;

[0042] The surgical instrument comprises an ultrasonic electroscalpel and a monopolar electroscalpel, and the ultrasonic electroscalpel and the monopolar electroscalpel are connected to the output device through the signal port to obtain the ultrasonic driving signal and the high-frequency electric driving signal.

[0043] According to the technical solution of the embodiment of the present disclosure, by encapsulating the ultrasonic energy source and the high-frequency electric energy source in the same shell of the output device, the output device can drive the ultrasonic surgical instrument and the high-frequency electrosurgical instrument at the same time, saving equipment space, without adding additional costs, facilitating equipment control, helping to improve surgical efficiency and obtaining better surgical results.

[0044] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Other features, objectives and advantages of the present disclosure will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0046] Figure 1 Schematically shows a block diagram of an output device that outputs a driving signal to a surgical instrument according to an embodiment of the present disclosure;

[0047] Figure 2 Schematically shows a block diagram of an output device that outputs a driving signal to a surgical instrument according to another embodiment of the present disclosure;

[0048] Figure 3a A block diagram schematically shows an ultrasonic energy source in an output device that outputs a driving signal to a surgical instrument according to another embodiment of the present disclosure;

[0049] Figure 3b Schematically shows a block diagram of a high-frequency electric energy source in an output device that outputs a driving signal to a surgical instrument according to another embodiment of the present disclosure;

[0050] Figure 4a A block diagram schematically shows an ultrasonic signal acquisition circuit in an output device for outputting a driving signal to a surgical instrument according to another embodiment of the present disclosure;

[0051] Figure 4b A block diagram schematically shows a high-frequency electrical signal acquisition circuit in an output device for outputting a driving signal to a surgical instrument according to another embodiment of the present disclosure;

[0052] Figure 5 Schematically shows a block diagram of an output device that outputs a driving signal to a surgical instrument according to another embodiment of the present disclosure;

[0053] Figure 6 A block diagram of a surgical system according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0054] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, parts not related to the description of the exemplary embodiments are omitted in the accompanying drawings.

[0055] In the present disclosure, it should be understood that terms such as "include" or "have" are intended to indicate the presence of features, numbers, steps, behaviors, components, parts, or a combination thereof disclosed in the present specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or a combination thereof exist or are added.

[0056] It should also be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0057] It should be noted that the acquisition or display of data in the present disclosure is authorized, confirmed, or actively selected by the user.

[0058] An embodiment of the present disclosure provides an output device for outputting a driving signal to a surgical instrument, comprising: an ultrasonic energy source for generating an ultrasonic driving signal; a high-frequency electric energy source for generating a high-frequency electric driving signal; the ultrasonic energy source and the high-frequency electric energy source are located in the same shell; a signal port for connecting to a surgical instrument to output the ultrasonic driving signal and / or the high-frequency electric driving signal to the surgical instrument; an ultrasonic signal acquisition circuit for acquiring and processing a signal in a circuit connecting the ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and providing the ultrasonic feedback signal to a control module, the ultrasonic feedback signal including an ultrasonic voltage feedback signal and an ultrasonic current feedback signal; a high-frequency electric signal acquisition circuit for acquiring and processing a signal in a circuit connecting the high-frequency electric energy source and the surgical instrument to obtain a high-frequency electric feedback signal, and providing the high-frequency electric signal acquisition circuit to a control module. A high-frequency electric feedback signal is provided to a control module, and the high-frequency electric feedback signal includes a high-frequency voltage feedback signal and a high-frequency current feedback signal; the control module is used to obtain adjustment parameters based on the ultrasonic feedback signal and the high-frequency electric feedback signal; and control the ultrasonic energy source to output an ultrasonic drive signal and the high-frequency electric energy source to output a high-frequency electric drive signal based on the adjustment parameters; wherein the adjustment parameters include power parameters and frequency parameters, the power parameters are used to adjust the power of the ultrasonic drive signal output by the ultrasonic energy source and the power of the high-frequency electric drive signal output by the high-frequency electric energy source, and the frequency parameters are used to adjust the frequency of the ultrasonic drive signal output by the ultrasonic energy source and / or the frequency of the high-frequency drive signal output by the high-frequency electric energy source, wherein the surgical instrument includes one or more of an ultrasonic electric knife, an ultrasonic knife, a monopolar electric knife and a bipolar electric knife.

[0059] Figure 1 A block diagram of an output device for outputting a driving signal to a surgical instrument according to an embodiment of the present disclosure is schematically shown.

[0060] like Figure 1As shown, the output device 100 includes an ultrasonic energy source 110 , a high-frequency electric energy source 120 , a signal port 130 , an ultrasonic signal acquisition circuit 140 , a high-frequency electric signal acquisition circuit 150 , and a control module 160 .

[0061] The ultrasonic energy source 110 is used to provide an ultrasonic driving signal for the ultrasonic surgical instrument. The ultrasonic energy source can convert industrial frequency alternating current into an ultrasonic electrical signal that matches the ultrasonic transducer of the ultrasonic surgical instrument, drive the ultrasonic transducer to convert electrical energy into mechanical energy, and drive the ultrasonic blade rod at the end of the ultrasonic surgical instrument to vibrate. The operating frequency of ultrasonic surgical instruments used in surgery is 20 to 100 kHz, with 55.5 kHz being the most common. The signal frequency output by the ultrasonic energy source in the embodiment of the present disclosure is also within this range.

[0062] The high-frequency electric energy source 120 is used to provide a high-frequency electric drive signal to the high-frequency electrosurgical instrument. The frequency range of the high-frequency electrosurgical instrument used in surgery is between 0.3 and 5 MHz. The "high frequency" referred to in the present disclosure also refers to the frequency between 0.3 and 5 MHz. The signal frequency output by the high-frequency electric energy source in the embodiment of the present disclosure is also within this range.

[0063] According to an embodiment of the present disclosure, the ultrasonic energy source 110 and the high-frequency electric energy source 120 are configured in the chassis of the same output device, that is, located in the same chassis housing, and connected to the surgical instrument through the signal port 130 to output a drive signal to the surgical instrument. Among them, the signal port 130 can be multiple, for one or more surgical instruments to connect. For example, the signal port 130 includes two ports, one of which provides a drive signal for an ultrasonic electric knife, and the ultrasonic drive signal and the high-frequency electric drive signal can be output by the port, and the other port provides a drive signal for a monopolar electric knife or a bipolar electric knife. When used, the control module 160 can automatically control the drive signal output by each signal port 130 to ensure that the surgical instrument currently in use is stable and working properly, and the drive signal output by each signal port 130 can also be manually controlled. The signal port 130 can also have only one port for connecting surgical instruments, and the output drive signal is controlled according to the use requirements, for example, when the ultrasonic knife is connected, an ultrasonic drive signal is output, when the monopolar electric knife is connected, a high-frequency electric drive signal is output, and when the ultrasonic electric knife is connected, an ultrasonic drive signal and a high-frequency electric drive signal are output. The output device 100 may further include a signal port for connecting to other surgical devices, so that the output device 100 can work in coordination with the other surgical devices.

[0064] The signal port 130 may also include a port for receiving a manual switch signal of a surgical instrument and providing it to the control module 160. For example, there is a manual switch at the handle of an ultrasonic scalpel, through which the power level of the ultrasonic scalpel can be selected, and each level sets the maximum output power at the current level. At this time, the control module 160 needs to control the power of the output drive signal according to the manual switch signal and the adjustment parameters.

[0065] The ultrasonic signal acquisition circuit 140 is used to collect and process the signal in the circuit connecting the ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and provide the ultrasonic feedback signal to the control module 160. The driving signal output by the ultrasonic energy source 110 is a continuous voltage signal. When the surgical instrument contacts the cut tissue, a load circuit is formed, and a current signal is generated in the circuit connecting the ultrasonic energy source 110 and the surgical instrument. The ultrasonic signal acquisition circuit 140 synchronously collects and processes the voltage signal and current signal in this circuit, and then converts them into a discontinuous digital signal, namely an ultrasonic feedback signal, and provides it to the processor in the control module 160 for high-speed digital processing and operation. The signal processing in the ultrasonic signal acquisition circuit 140 can reduce the interference components in the signal and improve the validity and reliability of the operation results.

[0066] The high-frequency electrical signal acquisition circuit 150 is used to acquire and process the signal in the circuit connecting the high-frequency electrical energy source and the high-frequency electrosurgical instrument to obtain a high-frequency electrical feedback signal, and provide the high-frequency electrical feedback signal to the control module 160. The high-frequency electrical signal acquisition circuit 150 synchronously acquires and processes the voltage signal and the current signal in the circuit, and then converts them into non-continuous digital signals, i.e., high-frequency electrical feedback signals, and provides them to the processor in the control module 160 for high-speed digital processing and calculation. The signal processing in the high-frequency electrical signal acquisition circuit 150 can reduce the interference components in the signal and improve the validity and reliability of the calculation results.

[0067] The control module 160 is used to obtain adjustment parameters based on the ultrasonic feedback signal and the high-frequency electrical feedback signal, and control the ultrasonic energy source 110 to output an ultrasonic drive signal and the high-frequency electrical energy source 120 to output a high-frequency electrical drive signal based on the adjustment parameters.

[0068] According to an embodiment of the present disclosure, the control module 160 obtains adjustment parameters based on the ultrasonic feedback signal. The feedback signal includes a voltage feedback signal and a current feedback signal, from which the phase difference between the voltage signal and the current signal can be obtained, and the phase difference can be multiplied by the frequency conversion coefficient set by the system to obtain a frequency offset, and the frequency of the output drive signal can be adjusted according to the frequency offset. On the other hand, the impedance in the load circuit can also be obtained through the feedback signal. According to the changes in the phase difference and impedance, the power of the output signal can be accurately adjusted, so that the ultrasonic surgical instrument works at a stable and appropriate power.

[0069] According to an embodiment of the present disclosure, the adjustment parameters obtained by the control module 160 include power parameters and frequency parameters. The power parameters are used to adjust the power of the ultrasonic drive signal output by the ultrasonic energy source and / or the power of the high-frequency electric drive signal output by the high-frequency electric energy source. The frequency parameters are used to adjust the frequency of the ultrasonic drive signal output by the ultrasonic energy source and / or the frequency of the high-frequency drive signal output by the high-frequency electric energy source. The frequency of the ultrasonic drive signal is adjusted to ensure the normal operation of the ultrasonic surgical instrument, and the frequency of the high-frequency electric drive signal usually does not need to be adjusted; the power of the ultrasonic drive signal and the power of the high-frequency electric drive signal are adjusted to obtain a better surgical effect. In some scenarios, it is not necessary to adjust the power of the drive signal. For example, in the case of only cutting or only sealing, or when the cut tissue structure is simple, the power adjustment may not be performed during the cutting process.

[0070] The control module 160 can control the ultrasonic energy source and the high-frequency electric energy source according to the adjustment parameters, and can also control the output of the energy source in combination with other system settings. For example, if the system sets the maximum power, the power parameter will give the percentage of the maximum power; if the system sets the center frequency, the frequency parameter will give the offset of the center frequency.

[0071] An implementation scheme for determining the power parameter based on the feedback signal is described below.

[0072] The impedance in the load circuit can be obtained from the voltage signal V(t) and the current signal I(t), that is, R(t) = V(t) / I(t). Therefore, the impedance R in the ultrasonic circuit can be obtained from the voltage signal output by the ultrasonic energy source and the current signal in the load circuit. US (t), referred to as acoustic impedance, can be obtained by the voltage signal and current signal output by the high-frequency electric energy source. ES(t), referred to as electrical impedance. By detecting the changes in acoustic impedance and / or electrical impedance during the surgical cutting process to track the cutting process, it can be used as a basis for adjusting the power of the driving signal, realizing adaptive power adjustment of the driving signal, and obtaining a better surgical effect. The impedance can reflect the changes in the tissue characteristics of the cut part, such as protein denaturation, blood coagulation, etc., so as to match the cutting process, so that the control module 160 can adjust the power of the output driving signal according to the cutting process. For example, when using an ultrasonic electric knife to cut the liver, the vibration of the ultrasonic knife rod can realize the cutting function, and the high-frequency electric energy applied by the electric jaws can assist in coagulation. When the impedance increase is detected, the signal power driving the ultrasonic knife also increases, thereby accelerating the vibration of the ultrasonic knife rod. When the impedance becomes larger, the signal power applied to the electric jaws also increases, which can improve the efficiency of coagulation or evaporation of water. In this way, the use of an ultrasonic electric knife can speed up the cutting process and reduce bleeding, and obtain a better surgical effect. For example, when cutting the small intestine, the cutting takes a long time due to the high toughness of the tissue. When using an ultrasonic electrosurgical knife, the signal power driving the ultrasonic knife can be increased to accelerate the cutting, while the signal power applied to the electric jaws is maintained at an appropriate level to evaporate the moisture in the tissue to assist in cutting.

[0073] According to an embodiment of the present disclosure, the control module 160 is also used to obtain acoustic impedance based on ultrasonic feedback signals and electrical impedance based on high-frequency electrical feedback signals; match the acoustic impedance and / or electrical impedance with impedance data to determine tissue type; and match the acoustic impedance and / or electrical impedance with impedance data to obtain power parameters based on the tissue type. The impedance data referred to here refers to the impedance characteristics exhibited by a certain type of tissue during the cutting process, and the impedance data at least includes the impedance size and the power recommended value of the surgical instrument used for the tissue. As mentioned above, tracking the cutting process by detecting changes in acoustic impedance and / or electrical impedance during the surgical cutting process can be used as a basis for adjusting the power of the driving signal, achieving adaptive power adjustment of the driving signal, and obtaining better surgical results. For example, there is a significant difference in the impedance size of the liver and small intestine when cutting. The current cutting tissue type can be matched by the impedance size, thereby finding the power parameters of this type of tissue.

[0074] In addition, the current cutting stage can be judged by detecting the rise and fall of impedance, so as to select the appropriate power in different cutting stages to obtain better surgical results. For example, the impedance characteristics in the initial stage of cutting are rapid rise and then fall, the impedance is maintained at a relatively stable level during the cutting stage, and the impedance shows a rapid rise again at the end of the cutting stage. A fixed power setting can be used at the initial and end of the cutting stage, and the above-mentioned adaptive power adjustment method can be used during the cutting stage.

[0075] According to an embodiment of the present disclosure, the control module 160 is also used to: obtain a first phase difference based on the ultrasonic voltage feedback signal and the ultrasonic current feedback signal; obtain a second phase difference based on the high-frequency voltage feedback signal and the high-frequency current feedback signal; match the acoustic impedance and / or electrical impedance with the impedance data based on the tissue type, and obtain a power parameter based on the first phase difference and the second phase difference. According to the phase difference between the voltage signal and the current signal in the load circuit, the signal power applied to the load circuit can be accurately adjusted. The actual signal power loaded on the surgical instrument is P = UIcosθ. When the phase difference θ between the voltage signal and the current signal is not zero, the actual signal power will decrease. According to an embodiment of the present disclosure, after matching the tissue type according to the impedance and obtaining the power recommendation value, if the phase difference in the current circuit is not zero, the signal power output by the energy source needs to be increased to ensure that the signal power actually loaded on the surgical instrument meets the requirements of the power recommendation value. For example, the currently matched tissue type is type 1, the corresponding ultrasonic signal power recommended value is P1, and the high-frequency electrical signal power recommended value is P2. At this time, the calculated first phase difference θ1, that is, the phase difference of the ultrasonic feedback signal is not zero, and the second phase difference θ2 is zero, then the control module 160 controls the signal power output of the ultrasonic energy source to be P US =P1 / cosθ1, the output signal power of the high-frequency electric energy source is P ES =P2.

[0076] The control module 160 can also control the duration of the ultrasonic energy source and the high-frequency electric energy source output signals. For example, when an ultrasonic electric knife is used for surgical cutting, in a certain period of time, the ultrasonic energy source is controlled to output a driving signal, while the high-frequency electric energy source is not output. At this time, the ultrasonic electric knife only performs the cutting function of the "ultrasonic knife". In another period of time, the high-frequency electric energy source is controlled to output a driving signal, while the ultrasonic energy source is not output. At this time, the ultrasonic electric knife only performs the coagulation function of the "electric knife", which also helps to obtain a better surgical effect.

[0077] According to an embodiment of the present disclosure, the output device 100 can output driving signals for one or more surgical instruments including ultrasonic electric knife, ultrasonic scalpel, monopolar electric scalpel and bipolar electric scalpel. For example, when using ultrasonic electric scalpel to perform surgery, the output device 100 only needs to provide ultrasonic driving signal and high-frequency electric driving signal for the ultrasonic electric scalpel. When using ultrasonic scalpel and monopolar electric scalpel to perform surgery, the output device 100 needs to provide ultrasonic driving signal for the ultrasonic scalpel and high-frequency electric driving signal for the monopolar electric scalpel.

[0078] According to the technical solution of the embodiment of the present disclosure, by encapsulating the ultrasonic energy source and the high-frequency electric energy source in the shell of an output device, the output device can drive ultrasonic surgical instruments and high-frequency electrosurgical instruments at the same time, saving equipment space, facilitating equipment control, helping to improve surgical efficiency and obtaining better surgical results.

[0079] Figure 2 A block diagram of an output device for outputting a driving signal to a surgical instrument according to another embodiment of the present disclosure is schematically shown.

[0080] like Figure 2 As shown, the output device 200 includes an ultrasonic energy source 110, a high-frequency electrical energy source 120, a signal port 130, an ultrasonic signal acquisition circuit 140, a high-frequency electrical signal acquisition circuit 150, and a control module 160, wherein the control module 160 includes a first processing module 210 and a second processing module 220.

[0081] The ultrasonic energy source 110, the high-frequency electric energy source 120, the signal port 130, the ultrasonic signal acquisition circuit 140, the high-frequency electric signal acquisition circuit 150, and the control module 160 are the same as those described above. Figure 1 The ultrasonic energy source 110, high-frequency electrical energy source 120, signal port 130, ultrasonic signal acquisition circuit 140, high-frequency electrical signal acquisition circuit 150, and control module 160 of the output device 100 in the illustrated embodiment have similar functions.

[0082] The first processing module 210 is used to perform digital filtering and digital operations on the ultrasonic feedback signal to obtain the acoustic impedance. By further filtering the ultrasonic feedback signal, a feedback signal with lower interference can be obtained. When the feedback signal is used to perform phase operations and power operations on the signal, the accuracy of the calculation results can be improved, and the accuracy of the frequency tracking of the ultrasonic transducer can be improved, thereby ensuring that the output ultrasonic drive signal resonates with the ultrasonic transducer, so that the ultrasonic knife has the highest working efficiency; at the same time, as mentioned above, the smaller the phase difference error, the higher the accuracy of the power adjustment.

[0083] The second processing module 220 is used to perform digital filtering and digital operation on the high-frequency electrical feedback signal to obtain the electrical impedance. By further filtering the high-frequency electrical feedback signal, a feedback signal with lower interference can be obtained. When the feedback signal is used to perform phase operation and power operation of the signal, the accuracy of the calculation result can be improved to obtain a more accurate adjustment parameter.

[0084] According to an embodiment of the present disclosure, the control module 160 may also include a module for combining and analyzing the ultrasonic feedback signal and the high-frequency electrical feedback signal to eliminate interference with the ultrasonic feedback signal and obtain a more accurate frequency offset.

[0085] Figure 3a A block diagram schematically shows an ultrasonic energy source in an output device that outputs a driving signal to a surgical instrument according to another embodiment of the present disclosure.

[0086] like Figure 3a As shown, the ultrasonic energy source 110 includes an ultrasonic frequency adjustment module 310 , an ultrasonic power adjustment module 320 , and an ultrasonic signal generator 330 .

[0087] The ultrasonic frequency adjustment module 310 is used to adjust the frequency of the signal output by the ultrasonic signal generator;

[0088] The ultrasonic power adjustment module 320 is used to adjust the power of the signal output by the ultrasonic signal generator;

[0089] The ultrasonic signal generator 330 is used to generate an ultrasonic driving signal of corresponding frequency and power according to the adjustments of the ultrasonic frequency adjustment module 310 and the ultrasonic power adjustment module 320 .

[0090] Figure 3b A block diagram schematically shows a high-frequency electric energy source in an output device that outputs a driving signal to a surgical instrument according to another embodiment of the present disclosure.

[0091] like Figure 3b As shown, the high-frequency electric energy source 120 includes a high-frequency electric frequency adjustment module 340 , a high-frequency electric power adjustment module 350 , and a high-frequency electric signal generator 360 .

[0092] A high-frequency electrical frequency adjustment module 340 is used to adjust the frequency of the signal output by the high-frequency electrical signal generator;

[0093] A high-frequency electric power regulating module 350 is used to regulate the power of the signal output by the high-frequency electric signal generator;

[0094] The high-frequency electrical signal generator 360 is used to generate a high-frequency electrical driving signal of corresponding frequency and power according to the adjustments of the high-frequency electrical frequency adjustment module 340 and the high-frequency electrical power adjustment module 350 .

[0095] According to the above Figure 3a and Figure 3b In the disclosed embodiment, the frequency and power of the output signals of the ultrasonic energy source and the high-frequency electric energy source are adjustable, and the switch is adjustable, so as to ensure that the surgical instruments can work stably during the operation and give full play to the advantages of the ultrasonic surgical instruments and the high-frequency electric surgical instruments.

[0096] Figure 4a The block diagram schematically shows an ultrasonic signal acquisition circuit in an output device that outputs a driving signal to a surgical instrument according to another embodiment of the present disclosure.

[0097] like Figure 4aAs shown, the ultrasonic signal acquisition circuit 140 includes: a first filtering module 401, a first differential amplifier module 402, a second filtering module 403, a first AGC module 404 (i.e., a first automatic gain control module, AGC is Automatic Generation Control), and a first ADC module 405 (i.e., a first analog-to-digital conversion module, ADC is Analog-to-Digital Converter).

[0098] The first filtering module 401 is used to perform primary filtering on the collected ultrasonic signal;

[0099] A first differential amplification module 402, used for differentially amplifying the signal after primary filtering;

[0100] The second filtering module 403 is used to perform secondary filtering on the signal after differential amplification;

[0101] A first AGC module 404, for performing gain control on the secondary filtered signal to facilitate digital sampling;

[0102] The first ADC module 405 is used to perform digital conversion on the processed signal.

[0103] Figure 4b The block diagram schematically shows a high-frequency electrical signal acquisition circuit in an output device that outputs a driving signal to a surgical instrument according to another embodiment of the present disclosure.

[0104] like Figure 4b As shown, the high-frequency electrical signal acquisition circuit 150 includes: a third filtering module 406, a second differential amplifier module 407, a fourth filtering module 408, a second AGC module 409 (ie, a second automatic gain control module), and a second ADC module 410 (ie, a second analog-to-digital conversion module).

[0105] The third filtering module 406 is used to perform primary filtering on the collected high-frequency electrical signal;

[0106] The second differential amplification module 407 is used to perform differential amplification on the signal after primary filtering;

[0107] The fourth filtering module 408 is used to perform secondary filtering on the signal after differential amplification;

[0108] A second AGC module 409, used to perform gain control on the secondary filtered signal to facilitate digital sampling;

[0109] The second ADC module 410 is used to perform digital conversion on the processed signal.

[0110] According to the above Figure 4aand Figure 4b In the disclosed embodiment, independent collection and processing circuits are used to obtain the ultrasonic feedback signal and the high-frequency electrical feedback signal. This structure can reduce the interference between the ultrasonic signal and the high-frequency signal.

[0111] Figure 5 A block diagram of an output device for outputting a driving signal to a surgical instrument according to another embodiment of the present disclosure is schematically shown.

[0112] like Figure 5 As shown, the output device 500 includes an ultrasonic energy source 110 , a high-frequency electrical energy source 120 , a signal port 130 , an ultrasonic signal acquisition circuit 140 , a high-frequency electrical signal acquisition circuit 150 , a control module 160 , and an input module 510 .

[0113] The ultrasonic energy source 110, the high-frequency electric energy source 120, the signal port 130, the ultrasonic signal acquisition circuit 140, the high-frequency electric signal acquisition circuit 150, and the control module 160 are the same as those described above. Figure 1 The ultrasonic energy source 110, high-frequency electrical energy source 120, signal port 130, ultrasonic signal acquisition circuit 140, high-frequency electrical signal acquisition circuit 150, and control module 160 of the output device 100 in the illustrated embodiment have similar functions.

[0114] The input module 510 in the output device 500 is used to receive parameter settings, and the control module 160 is also used to control the power of the ultrasonic energy source output signal and / or the power of the high-frequency electric energy source output signal according to the parameter settings and adjustment parameters received by the input module 510.

[0115] According to an embodiment of the present disclosure, the input module 510 may be a digital panel with display and input functions, which is arranged on the outer surface of the box of the output device 500. The input module 510 may also be an external terminal device, which is connected to the output device 100 through the signal port 130. For example, when using the output device 500, the doctor sets the maximum power of the high-frequency electric knife or the power gear combination of the ultrasonic knife through the input module 510 according to the preliminary judgment. When performing the operation, the control module 160 sets the parameter as the upper limit of the power. When the adaptive power adjustment is performed according to the method of the aforementioned embodiment, the power will also meet the requirements of the parameter setting.

[0116] The present disclosure also discloses a surgical system, Figure 6 A block diagram of a surgical system according to an embodiment of the present disclosure is schematically shown.

[0117] like Figure 6As shown, the surgical system includes an output device 610 and a surgical instrument 620, wherein the output device 610 includes an ultrasonic energy source 611, a high-frequency electric energy source 612, a signal port 613, an ultrasonic signal acquisition circuit 614, a high-frequency electric signal acquisition circuit 615 and a control module 616.

[0118] The ultrasonic energy source 611 is used to output an ultrasonic driving signal.

[0119] The high-frequency electric energy source 612 is used to output a high-frequency electric driving signal; the ultrasonic energy source 611 and the high-frequency electric energy source 612 are located in the same housing.

[0120] The signal port 613 is used to connect to the surgical instrument 620 so that the surgical instrument 620 can obtain the ultrasonic driving signal output by the ultrasonic energy source 611 and the high-frequency electric driving signal output by the high-frequency electric energy source 612 .

[0121] The ultrasonic signal acquisition circuit 614 is used to collect and process the signal in the circuit connecting the ultrasonic energy source 611 and the surgical instrument to obtain an ultrasonic feedback signal, and provide the ultrasonic feedback signal to the control module 616. The ultrasonic feedback signal includes an ultrasonic voltage feedback signal and an ultrasonic current feedback signal.

[0122] The high-frequency electrical signal acquisition circuit 615 is used to collect and process the signal in the circuit connecting the high-frequency electrical energy source 612 and the surgical instrument to obtain a high-frequency electrical feedback signal, and provide the high-frequency electrical feedback signal to the control module 616. The high-frequency electrical feedback signal includes a high-frequency voltage feedback signal and a high-frequency current feedback signal.

[0123] The control module 616 is used to obtain adjustment parameters based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; and, based on the adjustment parameters, control the ultrasonic energy source 611 to output an ultrasonic drive signal, and the high-frequency electrical energy source 612 to output a high-frequency electrical drive signal; wherein the adjustment parameters include power parameters and frequency parameters, the power parameters are used to adjust the power of the ultrasonic drive signal output by the ultrasonic energy source 611 and the power of the high-frequency electrical drive signal output by the high-frequency electrical energy source 612, and the frequency parameters are used to adjust the frequency of the ultrasonic drive signal output by the ultrasonic energy source 611 and / or the frequency of the high-frequency drive signal output by the high-frequency electrical energy source 612.

[0124] The surgical instrument 620 includes an ultrasonic electroscalpel (or ultrasonic scalpel) 621 and a monopolar electroscalpel 622 , and the ultrasonic electroscalpel 621 and the monopolar electroscalpel 622 are connected to the output device 610 through the signal port 613 to obtain the ultrasonic drive signal and the high-frequency electric drive signal.

[0125] The output device 610 in the surgical system of the embodiment of the present disclosure has various functions possessed by the output device 100 in the aforementioned embodiment, and the repeated parts are not repeated here.

[0126] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present disclosure is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other.

Claims

1. An output device for outputting a driving signal to a surgical instrument, comprising: An ultrasonic energy source, used to generate an ultrasonic driving signal; A high-frequency electric energy source, used to generate a high-frequency electric drive signal; The ultrasonic energy source and the high-frequency electrical energy source are located in the same housing; A signal port, used to connect to a surgical instrument to output the ultrasonic drive signal and / or the high-frequency electric drive signal to the surgical instrument; An ultrasonic signal acquisition circuit, used for acquiring and processing the signal in the connection circuit between the ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and providing the ultrasonic feedback signal to a control module, wherein the ultrasonic feedback signal includes an ultrasonic voltage feedback signal and an ultrasonic current feedback signal; A high-frequency electrical signal acquisition circuit, used for acquiring and processing the signal in the connection circuit between the high-frequency electrical energy source and the surgical instrument to obtain a high-frequency electrical feedback signal, and providing the high-frequency electrical feedback signal to the control module, wherein the high-frequency electrical feedback signal includes a high-frequency voltage feedback signal and a high-frequency current feedback signal; A control module, used to obtain adjustment parameters based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; and, based on the adjustment parameters, control the ultrasonic energy source to output an ultrasonic drive signal and the high-frequency electrical energy source to output a high-frequency electrical drive signal; and control the duration of the ultrasonic energy source and the high-frequency electrical energy source output signals; wherein the adjustment parameters include power parameters and frequency parameters, the power parameters are used to adjust the power of the ultrasonic drive signal output by the ultrasonic energy source and the power of the high-frequency electrical drive signal output by the high-frequency electrical energy source, and the frequency parameters are used to adjust the frequency of the ultrasonic drive signal output by the ultrasonic energy source and / or the frequency of the high-frequency drive signal output by the high-frequency electrical energy source, and obtaining the power parameters includes: obtaining acoustic impedance based on the ultrasonic feedback signal, and obtaining electrical impedance based on the high-frequency electrical feedback signal; matching the acoustic impedance and electrical impedance with impedance data to confirm determining a tissue type; obtaining a first phase difference based on the ultrasonic voltage feedback signal and the ultrasonic current feedback signal; obtaining a second phase difference based on the high-frequency voltage feedback signal and the high-frequency current feedback signal; matching the acoustic impedance and the electrical impedance with the impedance data based on the tissue type, and obtaining a power parameter according to the first phase difference and the second phase difference; Wherein, the surgical instrument includes one or more of an ultrasonic electrosurgery, an ultrasonic scalpel, a monopolar electrosurgery and a bipolar electrosurgery.

2. The output device for outputting a driving signal to a surgical instrument according to claim 1, wherein: The control module also includes: A first processing module, used for performing digital filtering and digital operation on the ultrasonic feedback signal to obtain acoustic impedance; The second processing module is used to perform digital filtering and digital operation on the high-frequency electrical feedback signal to obtain electrical impedance.

3. The output device for outputting a driving signal to a surgical instrument according to claim 1, wherein: The ultrasonic energy source comprises: Ultrasonic frequency adjustment module, ultrasonic power adjustment module, ultrasonic signal generator; The high-frequency electric energy source includes: a high-frequency electric frequency adjustment module, a high-frequency electric power adjustment module, and a high-frequency electric signal generator.

4. The output device for outputting a driving signal to a surgical instrument according to claim 1, wherein: The ultrasonic signal acquisition circuit comprises: A first filtering module, a first differential amplifying module, a second filtering module, a first automatic gain control module, and a first analog-to-digital conversion module.

5. The output device for outputting a driving signal to a surgical instrument according to claim 1, wherein: The high-frequency electrical signal acquisition circuit comprises: A third filtering module, a second differential amplifying module, a fourth filtering module, a second automatic gain control module, and a second analog-to-digital conversion module.

6. The output device for outputting a driving signal to a surgical instrument according to claim 1, in, The signal port is also used to receive the manual switch signal of the surgical instrument and provide it to the control module; The control module is also used to control the power of the output signal of the ultrasonic energy source and / or the power of the output signal of the high-frequency electric energy source according to the manual switch signal and the adjustment parameter.

7. The output device for outputting a drive signal to a surgical instrument according to claim 1, further comprising an input module for receiving parameter settings; The control module is also used to control the power of the output signal of the ultrasonic energy source and / or the power of the output signal of the high-frequency electric energy source according to the parameter setting and the adjustment parameter.

8. A surgical system comprising an output device and a surgical instrument, wherein: Output devices include: An ultrasonic energy source, used for outputting an ultrasonic driving signal; A high-frequency electric energy source, used to output a high-frequency electric drive signal; the ultrasonic energy source and the high-frequency electric energy source are located in the same housing; a signal port, used to connect to a surgical instrument to output the ultrasonic drive signal and / or the high-frequency electric drive signal to the surgical instrument; An ultrasonic signal acquisition circuit, used for acquiring and processing the signal in the connection circuit between the ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and providing the ultrasonic feedback signal to a control module, wherein the ultrasonic feedback signal includes an ultrasonic voltage feedback signal and an ultrasonic current feedback signal; A high-frequency electrical signal acquisition circuit, used for acquiring and processing the signal in the connection circuit between the high-frequency electrical energy source and the surgical instrument to obtain a high-frequency electrical feedback signal, and providing the high-frequency electrical feedback signal to the control module, wherein the high-frequency electrical feedback signal includes a high-frequency voltage feedback signal and a high-frequency current feedback signal; A control module, for obtaining adjustment parameters based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; and, based on the adjustment parameters, controlling the ultrasonic energy source to output an ultrasonic drive signal and the high-frequency electrical energy source to output a high-frequency electrical drive signal; and, controlling the duration of the ultrasonic energy source and the high-frequency electrical energy source output signals; wherein the adjustment parameters include power parameters and frequency parameters, the power parameters are used to adjust the power of the ultrasonic drive signal output by the ultrasonic energy source and the power of the high-frequency electrical drive signal output by the high-frequency electrical energy source, and the frequency parameters are used to adjust the frequency of the ultrasonic drive signal output by the ultrasonic energy source and / or the frequency of the high-frequency drive signal output by the high-frequency electrical energy source, and obtaining the power parameters includes: obtaining acoustic impedance based on the ultrasonic feedback signal, obtaining electrical impedance based on the high-frequency electrical feedback signal; matching the acoustic impedance and electrical impedance with impedance data to determine the tissue type; obtaining a first phase difference based on the ultrasonic voltage feedback signal and the ultrasonic current feedback signal; obtaining a second phase difference based on the high-frequency voltage feedback signal and the high-frequency current feedback signal; matching the acoustic impedance and electrical impedance with the impedance data based on the tissue type, and obtaining the power parameter according to the first phase difference and the second phase difference; The surgical instrument includes an ultrasonic electroscalpel and a high-frequency electroscalpel, which are connected to the output device through the signal port to obtain the ultrasonic drive signal and the high-frequency electric drive signal. The high-frequency electroscalpel is one or both of a monopolar electroscalpel and a bipolar electroscalpel.

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