CN217611276U - Device for outputting drive signal to surgical instrument and surgical system - Google Patents
Device for outputting drive signal to surgical instrument and surgical system Download PDFInfo
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- CN217611276U CN217611276U CN202123077855.9U CN202123077855U CN217611276U CN 217611276 U CN217611276 U CN 217611276U CN 202123077855 U CN202123077855 U CN 202123077855U CN 217611276 U CN217611276 U CN 217611276U
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Abstract
The disclosed embodiments provide an output apparatus that outputs a drive signal to a surgical instrument and a surgical system. The apparatus comprises: the ultrasonic energy source and the high-frequency electric energy source are positioned in the same shell, the signal port, the ultrasonic signal acquisition circuit, the high-frequency electric signal acquisition circuit and the control module are positioned in the same shell. The control module is used for obtaining an adjusting parameter based on the feedback signal and controlling the ultrasonic energy source and the high-frequency electric energy source to output a driving signal based on the adjusting parameter. The surgical instrument includes one or more of an ultrasonic blade, a monopolar blade, and a bipolar blade. According to the technical scheme, the ultrasonic energy source and the high-frequency electric energy source are packaged in the same shell of the output device, the output device can drive the ultrasonic surgical instrument and the high-frequency electric surgical instrument at the same time, the equipment space is saved, the additional cost is not increased, the control is convenient, the operation efficiency is improved, and a better operation effect is obtained.
Description
Technical Field
The present disclosure relates to an ultrasonic electrosurgical system for performing a surgical operation, and more particularly, to an apparatus for outputting a drive signal to a surgical instrument and a surgical system.
Background
Ultrasonic surgical instruments (referred to as ultrasonic knives for short) and high-frequency electrosurgical instruments (referred to as electric knives for short) can be used for surgical operations. Ultrasonic cutters have better cutting performance, but have poorer coagulation performance in surgical operations. The electric knives are classified into monopolar electric knives and bipolar electric knives according to the operation mode, and the bipolar electric knives have excellent coagulation performance but poor cutting performance in surgical operations. The multifunctional ultrasonic surgical instrument is called an "ultrasonic electric knife" because the ultrasonic knife and the bipolar electric knife can achieve the effects after the electrode is arranged on the end effector of the ultrasonic knife.
Ultrasonic, monopolar, or bipolar electrosurgical blades are used as needed in surgery, several of which are often used in a single procedure. At present, the output devices for driving these surgical instruments are independent devices, which not only occupy the limited space of the operating room, but also have much inconvenience for controlling these output devices during use, and even affect the surgical effect. For example, when the ultrasonic scalpel is driven, an ultrasonic output device is used for driving the ultrasonic scalpel, and a high-frequency output device is used for driving the monopolar electric scalpel or the bipolar electric scalpel, the ultrasonic output device and the high-frequency output device are connected by a cable, and the ultrasonic scalpel is driven by a device with a dual energy source, but an ultrasonic driving signal and a high-frequency electric driving signal output by the device are superposed single-path signals, a special ultrasonic transducer is required to separate the signals to drive the ultrasonic scalpel, and the ultrasonic transducer is a vulnerable component, so that the application cost is undoubtedly increased.
SUMMERY OF THE UTILITY MODEL
To solve the problems in the related art, embodiments of the present disclosure provide an output apparatus that outputs a drive signal to a surgical instrument and a surgical system.
One aspect of the present disclosure provides an output device that provides an output drive signal to a surgical instrument, comprising:
an ultrasonic energy source for generating an ultrasonic drive signal;
a high frequency electrical energy source for generating a high frequency electrical drive signal; the ultrasonic energy source and the high-frequency electric energy source are positioned in the same shell;
a signal port for connection with a surgical instrument to output the ultrasonic drive signal and/or the high frequency electrical drive signal to the surgical instrument;
the ultrasonic signal acquisition circuit is used for acquiring and processing signals in a connecting circuit of an ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and the ultrasonic feedback signal is provided to the control module and comprises an ultrasonic voltage feedback signal and an ultrasonic current feedback signal;
a high-frequency electric signal acquisition circuit for acquiring and processing signals in a connection circuit of a high-frequency electric energy source and the surgical instrument to obtain a high-frequency electric feedback signal, and providing the high-frequency electric feedback signal to a control module, wherein the high-frequency electric feedback signal comprises a high-frequency voltage feedback signal and a high-frequency current feedback signal;
a control module for obtaining an adjustment parameter based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; and controlling the ultrasonic energy source to output an ultrasonic driving signal and the high-frequency electric energy source to output a high-frequency electric driving signal based on the adjusting parameters; wherein the adjusting parameters comprise a power parameter and a frequency parameter, the power parameter is used for adjusting the power of the ultrasonic driving signal output by the ultrasonic energy source and the power of the high-frequency electric driving signal output by the high-frequency electric energy source, the frequency parameter is used for adjusting the frequency of the ultrasonic driving signal output by the ultrasonic energy source and/or the frequency of the high-frequency driving signal output by the high-frequency electric energy source,
wherein the surgical instrument comprises one or more of an ultrasonic electrotome, an ultrasonic blade, a monopolar electrotome, and a bipolar electrotome.
According to an embodiment of the present disclosure, wherein the control module obtains an adjustment parameter based on the ultrasonic feedback signal and the high-frequency electrical feedback signal, includes:
obtaining acoustic impedance based on the ultrasonic feedback signal and electrical impedance based on the high-frequency electrical feedback signal;
matching the acoustic and/or electrical impedance to impedance data to determine a tissue type;
matching the acoustic and/or electrical impedance to the impedance data based on the tissue type to obtain a power parameter.
According to an embodiment of the present disclosure, the control module is further configured to:
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;
and matching the acoustic impedance and/or 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.
According to the embodiment of the disclosure, the control module is further configured to control the time lengths of the output signals of the ultrasonic energy source and the high-frequency electric energy source.
According to an embodiment of the present disclosure, wherein the control module further includes:
the first processing module is used for carrying out digital filtering and digital operation on the ultrasonic feedback signal so as to obtain acoustic impedance;
and the second processing module is used for carrying out digital filtering and digital operation on the high-frequency electric feedback signal so as to obtain the electric impedance.
In accordance with an embodiment of the present disclosure, wherein,
the ultrasonic energy source comprises: the ultrasonic frequency adjusting module, the ultrasonic power adjusting module and the ultrasonic signal generator are connected with the ultrasonic power adjusting module;
the high-frequency electric energy source comprises: the device comprises a high-frequency electric frequency adjusting module, a high-frequency electric power adjusting module and a high-frequency electric signal generator.
According to an embodiment of the present disclosure, wherein the ultrasound signal acquisition circuit comprises: the device comprises 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.
According to the embodiment of the present disclosure, the high frequency electric signal acquisition circuit includes: the device 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.
According to an embodiment of the present disclosure, the signal port is further configured to receive a manual switch signal of the surgical instrument and provide the manual switch signal to a control module;
the control module is further used for controlling 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.
According to the embodiment of the disclosure, the device further comprises an input module for receiving parameter setting;
the control module is further used for controlling 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 adjusting parameter.
Another aspect of the present disclosure provides a surgical system, comprising an output device and a surgical instrument,
wherein the output device includes:
an ultrasonic energy source for outputting an ultrasonic drive signal;
a high frequency electrical energy source for outputting a high frequency electrical drive signal; the ultrasonic energy source and the high-frequency electric energy source are positioned in the same shell;
a signal port for connection with a surgical instrument to output the ultrasonic drive signal and/or the high frequency electrical drive signal to the surgical instrument;
the ultrasonic feedback signal acquisition circuit is used for acquiring and processing signals in a connecting circuit of an ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and providing the ultrasonic feedback signal to the control module, wherein the ultrasonic feedback signal comprises an ultrasonic voltage feedback signal and an ultrasonic current feedback signal;
a high-frequency electric signal acquisition circuit for acquiring and processing signals in a connection circuit of a high-frequency electric energy source and the surgical instrument to obtain a high-frequency electric feedback signal, and providing the high-frequency electric feedback signal to a control module, wherein the high-frequency electric feedback signal comprises a high-frequency voltage feedback signal and a high-frequency current feedback signal;
a control module for obtaining an adjustment parameter based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; and controlling the ultrasonic energy source to output an ultrasonic driving signal and the high-frequency electric energy source to output a high-frequency electric driving signal based on the adjusting parameters; wherein the adjusting parameters comprise a power parameter and a frequency parameter, the power parameter is used for adjusting the power of the ultrasonic driving signal output by the ultrasonic energy source and the power of the high-frequency electric driving signal output by the high-frequency electric energy source, and the frequency parameter is used for adjusting the frequency of the ultrasonic driving signal output by the ultrasonic energy source and/or the frequency of the high-frequency driving signal output by the high-frequency electric energy source;
the surgical instrument includes an ultrasonic electrotome and a monopolar electrotome connected through the signal port to the output device for obtaining the ultrasonic drive signal and the high frequency electrical drive signal.
According to the technical scheme of the embodiment of the disclosure, the ultrasonic energy source and the high-frequency electric energy source are packaged in the same shell of the output device, the output device can simultaneously drive the ultrasonic surgical instrument and the high-frequency electric surgical instrument, the space of the device is saved, extra cost is not increased, the device control is convenient, the operation efficiency is improved, and better operation effect is obtained.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
Other features, objects, and advantages of the present disclosure will become more apparent from the following detailed description of non-limiting embodiments when taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 schematically illustrates a block diagram of an output device that outputs a drive signal to a surgical instrument, in accordance with an embodiment of the present disclosure;
FIG. 2 schematically illustrates a block diagram of an output device that outputs a drive signal to a surgical instrument, in accordance with another embodiment of the present disclosure;
fig. 3a schematically illustrates a block diagram of an ultrasonic energy source in an output device outputting a drive signal to a surgical instrument, in accordance with another embodiment of the present disclosure;
FIG. 3b schematically illustrates a block diagram of a source of high frequency electrical energy in an output device outputting a drive signal to a surgical instrument, in accordance with another embodiment of the present disclosure;
FIG. 4a schematically illustrates a block diagram of an ultrasound signal acquisition circuit in an output device that outputs a drive signal to a surgical instrument, in accordance with another embodiment of the present disclosure;
FIG. 4b schematically illustrates a block diagram of a high frequency electrical signal acquisition circuit in an output device that outputs a drive signal to a surgical instrument, in accordance with another embodiment of the present disclosure;
FIG. 5 schematically illustrates a block diagram of an output device that outputs a drive signal to a surgical instrument, in accordance with another embodiment of the present disclosure;
fig. 6 schematically illustrates a block diagram of a surgical system according to an embodiment of the present disclosure.
Detailed Description
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. Furthermore, parts that are not relevant to the description of the exemplary embodiments have been omitted from the drawings for the sake of clarity.
In the present disclosure, it is to be understood that terms such as "including" or "having," etc., are intended to indicate the presence of the disclosed features, numbers, steps, behaviors, components, parts, or combinations thereof, and are not intended to preclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or combinations thereof may be present or added.
It should be further noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It should be noted that the acquisition or presentation of data in this disclosure is authorized, confirmed, or actively selected by the user.
An embodiment of the present disclosure provides an output apparatus that outputs a drive signal to a surgical instrument, including: an ultrasonic energy source for generating an ultrasonic drive signal; a high frequency electrical energy source for generating a high frequency electrical drive signal; the ultrasonic energy source and the high-frequency electric energy source are positioned in the same shell; a signal port for connection with a surgical instrument to output the ultrasonic drive signal and/or the high frequency electrical drive signal to the surgical instrument; the ultrasonic signal acquisition circuit is used for acquiring and processing signals in a circuit connected with the surgical instrument by an ultrasonic energy source to obtain an ultrasonic feedback signal, and the ultrasonic feedback signal is provided to the control module and comprises an ultrasonic voltage feedback signal and an ultrasonic current feedback signal; a high-frequency electric signal acquisition circuit for acquiring and processing signals in a circuit connecting a high-frequency electric energy source with the surgical instrument to obtain high-frequency electric feedback signals, and providing the high-frequency electric feedback signals to a control module, wherein the high-frequency electric feedback signals comprise high-frequency voltage feedback signals and high-frequency current feedback signals; a control module for obtaining an adjustment parameter based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; and controlling the ultrasonic energy source to output an ultrasonic driving signal and the high-frequency electric energy source to output a high-frequency electric driving signal based on the adjusting parameters; wherein the adjustment parameters include a power parameter for adjusting 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 a frequency parameter for adjusting 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 knife, a monopolar knife, and a bipolar knife.
Fig. 1 schematically illustrates a block diagram of an output device that outputs a drive signal to a surgical instrument, in accordance with an embodiment of the present disclosure.
As shown in fig. 1, the output device 100 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.
An ultrasonic energy source 110 for providing an ultrasonic drive signal to an ultrasonic surgical instrument. The ultrasonic energy source can convert power frequency alternating current into ultrasonic electric signals matched with an ultrasonic transducer of the ultrasonic surgical instrument, and the ultrasonic transducer is driven to convert electric energy into mechanical energy to drive an ultrasonic cutter bar at the end part of the ultrasonic surgical instrument to vibrate and work. The operating frequency of the ultrasonic surgical instruments used in surgery is 20 to 100kHz, with 55.5kHz being the most common. The frequency of the signal output by the ultrasonic energy source in the disclosed embodiments is also within this range.
A source of high frequency electrical energy 120 for providing a high frequency electrical 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 5MHz, and the term "high frequency" as used in this disclosure also refers to frequencies between 0.3 and 5MHz, and the frequency of the signal output by the high-frequency electrical energy source in the embodiments of the present disclosure is also within this range.
In accordance with an embodiment of the present disclosure, the ultrasonic energy source 110 and the high frequency electrical energy source 120 are disposed in the same housing of the output device, i.e., within the same housing shell, and are connected to the surgical instrument via signal port 130 to output the drive signal to the surgical instrument. The signal port 130 may be a plurality of ports for connection of one or more surgical instruments. For example, the signal ports 130 include 2 ports, wherein one port provides a driving signal for the ultrasonic knife, the ultrasonic driving signal and the high-frequency electric driving signal can be output from the port, and the other port provides a driving signal for the monopolar knife or the bipolar knife, and the driving signal output from each signal port 130 can be automatically controlled by the control module 160 during use, so as to ensure that the currently used surgical instrument stably and normally works, and the driving signal output from each signal port 130 can also be manually controlled. The signal port 130 may have only 1 port for connecting a surgical instrument, and the output driving signal is controlled according to the use requirement, for example, when the ultrasonic knife is connected, the ultrasonic driving signal is output, when the monopolar knife is connected, the high-frequency electric driving signal is output, and when the ultrasonic knife is connected, the ultrasonic driving signal and the high-frequency electric driving signal are output. Output device 100 may also include a signal port for connection to other surgical devices to enable output device 100 to work in conjunction with other surgical devices.
The signal ports 130 may also include ports for receiving manual switch signals of the surgical instrument and providing them to the control module 160. For example, there is a manual switch at the handle of the ultrasonic blade by which the gear of the power of the ultrasonic blade can be selected, each gear setting the highest output power at the current gear. At this time, the control module 160 needs to control the power of the output driving signal according to the manual switch signal and the adjustment parameter.
An ultrasonic signal acquisition circuit 140 for acquiring and processing signals in the circuitry connecting the ultrasonic energy source to the surgical instrument to obtain an ultrasonic feedback signal and providing the ultrasonic feedback signal to the control module 160. The drive signal from the ultrasonic energy source 110 is a continuous voltage signal that forms a load circuit when the surgical instrument is in contact with the severed tissue, and a current signal is generated in the circuit connecting the ultrasonic energy source 110 to the surgical instrument. The ultrasonic signal acquisition circuit 140 synchronously acquires and processes the voltage signal and the current signal in the circuit, converts the signals into discontinuous digital signals, i.e., ultrasonic feedback signals, and provides the discontinuous digital signals 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 component in the signal and improve the validity and reliability of the operation result.
A high frequency electrical signal acquisition circuit 150 for acquiring and processing signals in the electrical circuit connecting the source of high frequency electrical energy to the high frequency electrosurgical instrument to obtain a high frequency electrical feedback signal and providing 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, converts the signals into discontinuous digital signals, i.e., high frequency electrical feedback signals, and provides the discontinuous digital signals to the processor in the control module 160 for high-speed digital processing and operation. The signal processing in the high-frequency electric signal acquisition circuit 150 can reduce the interference component in the signal and improve the effectiveness and reliability of the operation result.
And the control module 160 is configured to obtain an adjustment parameter based on the ultrasonic feedback signal and the high-frequency electric feedback signal, and control the ultrasonic energy source 110 to output an ultrasonic driving signal and the high-frequency electric energy source 120 to output a high-frequency electric driving signal based on the adjustment parameter.
According to an embodiment of the present disclosure, the control module 160 obtains the adjustment parameter based on the ultrasonic feedback signal. The feedback signal comprises a voltage feedback signal and a current feedback signal, and therefore, the phase difference between the voltage signal and the current signal can be obtained, the phase difference can be multiplied by a frequency conversion coefficient set by a system to obtain a frequency offset, and the frequency of an output driving signal can be adjusted according to the frequency offset. On the other hand, the impedance in the load circuit can be obtained through the feedback signal, and the power of the output signal can be accurately adjusted according to the phase difference and the change of the impedance, so that the ultrasonic surgical instrument works under stable and proper power.
According to an embodiment of the present disclosure, the adjustment parameters obtained by the control module 160 include a power parameter and a frequency parameter, the power parameter is used for adjusting the power of the ultrasonic driving signal output by the ultrasonic energy source and/or the power of the high-frequency electric driving signal output by the high-frequency electric energy source, and the frequency parameter is used for adjusting the frequency of the ultrasonic driving signal output by the ultrasonic energy source and/or the frequency of the high-frequency driving signal output by the high-frequency electric energy source. Adjusting the frequency of the ultrasonic drive signal to ensure proper operation of the ultrasonic surgical instrument, the frequency of the high frequency electrical drive signal generally not being adjusted; the power of the ultrasonic drive signal and the power of the high frequency electric drive signal are adjusted to achieve a better surgical effect. It may also be unnecessary to adjust the power of the drive signal in some scenarios, for example in the case of cutting only or sealing only, or in the case of a simple structure of the tissue to be cut, or not during the cutting process.
The control module 160 may control the ultrasonic energy source and the high frequency electrical energy source based on the tuning parameters, or may control the output of the energy source in conjunction with other system settings. For example, if the system sets the highest power, the power parameter will give a percentage of the highest power; the system sets the center frequency and the frequency parameter gives the offset of the center frequency.
An embodiment for determining a power parameter from a feedback signal is described below.
From the voltage signal V (t) and the current signal I (t), the impedance in the load circuit, i.e., R (t) = V (t)/I (t), can be derived. Therefore, the impedance R in the ultrasonic circuit can be obtained through the voltage signal output by the ultrasonic energy source and the current signal in the load circuit US (t), simply acoustic impedance, impedance R in a high frequency circuit is obtained from voltage and current signals output from a high frequency electrical energy source ES (t), referred to as electrical impedance. The cutting process is tracked by detecting the acoustic impedance and/or the change of the electrical impedance in the surgical cutting process, and the tracking method can be used as a basis for adjusting the power of the driving signal, so that the self-adaptive adjustment of the power of the driving signal is realized, and a better surgical effect is obtained. The impedance may reflect changes in tissue properties of the cut site, such as protein denaturation, blood coagulation, etc., to enable matching of the cutting process, so that the control module 160 adjusts the power of the output drive signal according to the progress of the cut. For example, when the ultrasonic scalpel is used for cutting liver, the vibration of the ultrasonic knife rod can realize the cutting function, the high-frequency electric energy applied by the electric jaw can assist in coagulation, when the impedance is detected to be increased, the signal power for driving the ultrasonic knife is also increased, so that the vibration of the ultrasonic knife rod is accelerated, when the impedance is increased, the signal power applied to the electric jaw is also increased, the coagulation or moisture evaporation efficiency can be improved, and the cutting process can be accelerated and bleeding can be reduced by using the ultrasonic scalpel, so that a better surgical effect can be obtained. For example, when cutting small intestine, the tissue toughness is high, the cutting time is long, and when using ultrasonic electric knife, the cutting time is increasedThe signal power for driving the ultrasonic knife is added to accelerate the cutting, and the signal power applied to the electric jaw is kept at a proper level to evaporate the moisture in the tissue to assist the cutting.
According to an embodiment of the present disclosure, the control module 160 is further configured to obtain an acoustic impedance based on the ultrasonic feedback signal and an electrical impedance based on the high frequency electrical feedback signal; matching the acoustic and/or electrical impedance to impedance data to determine a tissue type; matching the acoustic and/or electrical impedance to the impedance data based on the tissue type to obtain a power parameter. Impedance data as referred to herein refers to the impedance characteristics exhibited during the cutting process for a type of tissue, including at least the magnitude of the impedance and a recommended value for the power of the surgical instrument being used for that tissue. As mentioned above, the cutting process is tracked by detecting the acoustic impedance and/or the change of the electrical impedance in the surgical cutting process, and the tracking can be used as a basis for adjusting the power of the driving signal, so that the self-adaptive adjustment of the power of the driving signal is realized, and a better surgical effect is obtained. For example, the impedance of the liver and the small intestine during cutting is obviously different, and the type of the current cut tissue can be matched through the impedance, so that the power parameter of the type of the tissue can be found.
In addition, the current cutting stage can be judged by detecting the ascending and descending changes of the impedance, so that the adaptive power can be selected in different cutting stages, and a better surgical effect can be obtained. For example, the impedance characteristic in the initial stage of cutting is rapid rise and then fall, the impedance characteristic in the advanced stage of cutting is maintained to be relatively stable, the impedance characteristic in the final stage of cutting is rapid rise, fixed power setting can be adopted in the initial stage of cutting and the final stage of cutting, and the above-mentioned mode of adaptively adjusting the power is adopted in the advanced stage of cutting.
According to an embodiment of the present disclosure, the control module 160 is further configured to: 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 and/or electrical impedance with the impedance data based on the tissue type and in accordance therewithAnd obtaining a power parameter by the first phase difference and the second phase difference. The signal power applied to the load circuit can be accurately adjusted according to the phase difference between the voltage signal and the current signal in the load circuit. The actual signal power loaded on the surgical instrument is P = UIcos θ, and when the phase difference θ between the voltage signal and the current signal is not zero, the power of the actual signal decreases. According to the embodiment of the present disclosure, after the tissue type is matched according to the impedance and the power recommended value is obtained, if the phase difference in the current circuit is not zero, the signal power output by the energy source needs to be increased, so as to ensure that the signal power actually loaded on the surgical instrument meets the requirement of the power recommended value. For example, the currently matched tissue type is type 1, the power recommended value of the corresponding ultrasonic signal is P1, the power recommended value of the high-frequency electric signal is P2, and the first phase difference θ calculated at this time is 1 I.e. the phase difference of the ultrasonic feedback signal is not zero, and the second phase difference theta 2 If the signal power is zero, the control module 160 controls the signal power outputted by the ultrasonic energy source to be P US ＝P 1 /cosθ 1 The output signal power of the high-frequency electric energy source is P ES ＝P 2 。
The control module 160 may also control the duration of the ultrasonic energy source and the high frequency electrical energy source output signals. For example, when the ultrasonic scalpel is used for surgical cutting, the ultrasonic energy source is controlled to output a driving signal and the high-frequency electric energy source is not output in a certain period of time, at the moment, the ultrasonic scalpel only executes the cutting function of the ultrasonic scalpel, and the high-frequency electric energy source is controlled to output a driving signal and the ultrasonic energy source is not output in another period of time, at the moment, the ultrasonic scalpel only executes the blood coagulation function of the ultrasonic scalpel, so that better surgical effect is also facilitated.
According to an embodiment of the present disclosure, the output device 100 may output a drive signal for one or more surgical instruments including an ultrasonic electrotome, an ultrasonic blade, a monopolar electrotome, and a bipolar electrotome. For example, when performing a surgery using the ultrasonic scalpel, the output device 100 only needs to provide the ultrasonic driving signal and the high-frequency electric driving signal for the ultrasonic scalpel, and when performing a surgery using the ultrasonic scalpel and the monopolar scalpel, the output device 100 provides the ultrasonic driving signal for the ultrasonic scalpel and the high-frequency electric driving signal for the monopolar scalpel.
According to the technical scheme of the embodiment of the disclosure, the ultrasonic energy source and the high-frequency electric energy source are packaged in the shell of one output device, and the output device can simultaneously drive the ultrasonic surgical instrument and the high-frequency electric surgical instrument, so that the device space is saved, the device control is convenient, the operation efficiency is improved, and a better operation effect is obtained.
Fig. 2 schematically illustrates a block diagram of an output device that outputs a drive signal to a surgical instrument, according to another embodiment of the present disclosure.
As shown in fig. 2, the output device 200 includes an ultrasound energy source 110, a high frequency electrical energy source 120, a signal port 130, an ultrasound signal acquisition circuit 140, a high frequency electrical signal acquisition circuit 150, a control module 160, wherein the control module 160 includes a first processing module 210 and a second processing module 220.
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 similar in function to 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 of the output device 100 in the foregoing embodiment illustrated in fig. 1.
The first processing module 210 is configured to perform digital filtering and digital operation on the ultrasonic feedback signal to obtain an acoustic impedance. By further filtering the ultrasonic feedback signal, a feedback signal with lower interference can be obtained, and when the feedback signal is used for carrying out phase operation and power operation of the signal, the accuracy of a calculation result can be improved, and the frequency tracking accuracy of the ultrasonic transducer is improved, so that the resonance of the output ultrasonic driving signal and the ultrasonic transducer is ensured, and the working efficiency of the ultrasonic knife is highest; meanwhile, as described above, the smaller the error of the phase difference, the higher the accuracy of the power adjustment.
And a second processing module 220 for performing digital filtering and digital operation on the high-frequency electrical feedback signal to obtain the electrical impedance. The feedback signal with lower interference can be obtained by further filtering the high-frequency electric feedback signal, and when the feedback signal is used for carrying out phase operation and power operation of the signal, the accuracy of a calculation result can be improved, and more accurate adjustment parameters can be obtained.
According to an embodiment of the present disclosure, the control module 160 may further include a module for performing a combination analysis process on the ultrasonic feedback signal and the high-frequency electrical feedback signal, so as to perform interference cancellation on the ultrasonic feedback signal, and obtain a more accurate frequency offset.
Fig. 3a schematically illustrates a block diagram of an ultrasonic energy source in an output device that outputs a drive signal to a surgical instrument, in accordance with another embodiment of the present disclosure.
As shown in fig. 3a, the ultrasonic energy source 110 includes an ultrasonic frequency adjustment module 310, an ultrasonic power adjustment module 320, and an ultrasonic signal generator 330.
An ultrasonic frequency adjusting module 310 for adjusting the frequency of the signal output by the ultrasonic signal generator;
an ultrasonic power adjusting module 320 for adjusting the power of the signal output by the ultrasonic signal generator;
the ultrasonic signal generator 330 is configured to generate an ultrasonic driving signal with a corresponding frequency and power according to the adjustment of the ultrasonic frequency adjustment module 310 and the ultrasonic power adjustment module 320.
Fig. 3b schematically illustrates a block diagram of a high frequency electrical energy source in an output device outputting a drive signal to a surgical instrument, in accordance with another embodiment of the present disclosure.
As shown in fig. 3b, 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.
A high frequency electric frequency adjusting module 340 for adjusting the frequency of the signal output by the high frequency electric signal generator;
a high-frequency electric power adjusting module 350 for adjusting the power of the signal output by the high-frequency electric signal generator;
a high-frequency electric signal generator 360 for generating a high-frequency electric driving signal corresponding to the frequency and power according to the adjustment of the high-frequency electric frequency adjustment module 340 and the high-frequency electric power adjustment module 350.
According to the embodiments disclosed in fig. 3a and 3b above, the frequency and power of the output signals of the ultrasonic energy source and the high-frequency electrical energy source are adjustable. Therefore, the stable operation of the surgical instrument in the operation can be ensured, and the advantages of the ultrasonic surgical instrument and the high-frequency electrosurgical instrument can be fully exerted.
Fig. 4a schematically illustrates a block diagram of an ultrasound signal acquisition circuit in an output device outputting a drive signal to a surgical instrument according to another embodiment of the present disclosure.
As shown in fig. 4a, the ultrasound signal acquisition circuit 140 includes: a first filtering module 401, a first differential amplifying 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).
A first filtering module 401, configured to perform primary filtering on the acquired ultrasound signal;
a first differential amplifying module 402, configured to perform differential amplification on the primary-filtered signal;
a second filtering module 403, configured to perform secondary filtering on the signal after differential amplification;
a first AGC module 404 for gain controlling the secondary filtered signal for digital sampling;
a first ADC module 405, configured to perform digital conversion on the processed signal.
Fig. 4b schematically illustrates a block diagram of a high frequency electrical signal acquisition circuit in an output device that outputs a drive signal to a surgical instrument, according to another embodiment of the present disclosure.
As shown in fig. 4b, the high frequency electric signal collecting circuit 150 includes: a third filtering module 406, a second differential amplifying module 407, a fourth filtering module 408, a second AGC module 409 (i.e., a second automatic gain control module), and a second ADC module 410 (i.e., a second analog-to-digital conversion module).
A third filtering module 406, configured to perform primary filtering on the acquired high-frequency electrical signal;
a second differential amplifying module 407, configured to perform differential amplification on the signal subjected to the primary filtering;
a fourth filtering module 408, configured to perform secondary filtering on the signal after differential amplification;
a second AGC module 409 for gain controlling the secondary filtered signal for digital sampling;
and a second ADC module 410 for performing digital conversion on the processed signal.
According to the embodiment disclosed in fig. 4a and 4b, the acquisition of the ultrasound feedback signal and the high-frequency electrical feedback signal uses independent acquisition and processing circuits, and this structure can reduce the interference between the ultrasound signal and the high-frequency signal.
Fig. 5 schematically illustrates a block diagram of an output device that outputs a drive signal to a surgical instrument, according to another embodiment of the present disclosure.
As shown in fig. 5, the output device 500 includes an ultrasound energy source 110, a high frequency electrical energy source 120, a signal port 130, an ultrasound signal acquisition circuit 140, a high frequency electrical signal acquisition circuit 150, a control module 160, and an input module 510.
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 similar in function to 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 of the output device 100 in the illustrated embodiment of fig. 1.
The input module 510 of the output device 500 is configured to receive the parameter settings, and the control module 160 is further configured 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 settings and adjustment parameters received by the input module 510.
According to an embodiment of the present disclosure, the input module 510 may be a digital panel with display and input functions, and is disposed on an outer surface of the casing of the output device 500. The input module 510 may also be an external terminal device, and 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 hf electrotome or sets the power gear combination of the ultrasonic scalpel through the input module 510 according to the preliminary judgment, and when performing the operation, the control module 160 sets the parameter as the upper power limit, and the power will also meet the requirement of the parameter setting when performing the adaptive power adjustment according to the method of the foregoing embodiment.
The present disclosure also discloses a surgical system, and fig. 6 schematically illustrates a block diagram of a surgical system according to an embodiment of the present disclosure.
As shown in fig. 6, 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 electrical energy source 612, a signal port 613, an ultrasonic signal acquisition circuit 614, a high frequency electrical signal acquisition circuit 615, and a control module 616.
An ultrasonic energy source 611 for outputting an ultrasonic drive signal.
A high-frequency electrical energy source 612 for outputting a high-frequency electrical drive signal; the ultrasonic energy source 611 and the high frequency electrical energy source 612 are located within the same housing.
A signal port 613 for coupling to the surgical instrument 620 to enable the surgical instrument 620 to receive the ultrasonic drive signal from the ultrasonic energy source 611 and the high frequency electrical drive signal from the high frequency electrical energy source 612.
An ultrasonic signal acquisition circuit 614 for acquiring and processing signals in the circuitry connecting the ultrasonic energy source 611 to the surgical instrument to obtain ultrasonic feedback signals, which are provided to a control module 616, including an ultrasonic voltage feedback signal and an ultrasonic current feedback signal.
A high frequency electrical signal acquisition circuit 615 for acquiring and processing signals in the electrical circuit connecting the high frequency electrical energy source 612 to the surgical instrument to obtain high frequency electrical feedback signals, including high frequency voltage feedback signals and high frequency current feedback signals, and providing the high frequency electrical feedback signals to the control module 616.
A control module 616 for obtaining an adjustment parameter based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; controlling the ultrasonic energy source 611 to output an ultrasonic driving signal and the high-frequency electric energy source 612 to output a high-frequency electric driving signal based on the adjusting parameter; the adjusting parameters include a power parameter and a frequency parameter, the power parameter is used for adjusting the power of the ultrasonic driving signal output by the ultrasonic energy source 611 and the power of the high-frequency electric driving signal output by the high-frequency electric energy source 612, and the frequency parameter is used for adjusting the frequency of the ultrasonic driving signal output by the ultrasonic energy source 611 and/or the frequency of the high-frequency driving signal output by the high-frequency electric energy source 612.
The surgical instrument 620 includes an ultrasonic blade 621 and a monopolar blade 622, and the ultrasonic blade 621 and the monopolar blade 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.
The output device 610 in the surgical system of the embodiment of the present disclosure has various functions of the output device 100 in the foregoing embodiments, and repeated descriptions are omitted here.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.
Claims (11)
1. An output device that outputs a drive signal to a surgical instrument, comprising:
an ultrasonic energy source for generating an ultrasonic drive signal;
a high frequency electrical energy source for generating a high frequency electrical drive signal; the ultrasonic energy source and the high-frequency electric energy source are positioned in the same shell;
a signal port for connection with a surgical instrument to output the ultrasonic drive signal and/or the high frequency electrical drive signal to the surgical instrument;
the ultrasonic signal acquisition circuit is used for acquiring and processing signals in a connecting circuit of an ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and the ultrasonic feedback signal is provided to the control module and comprises an ultrasonic voltage feedback signal and an ultrasonic current feedback signal;
a high-frequency electric signal acquisition circuit for acquiring and processing signals in a connection circuit of a high-frequency electric energy source and the surgical instrument to obtain a high-frequency electric feedback signal, and providing the high-frequency electric feedback signal to a control module, wherein the high-frequency electric feedback signal comprises a high-frequency voltage feedback signal and a high-frequency current feedback signal;
a control module for obtaining an adjustment parameter based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; controlling the ultrasonic energy source to output an ultrasonic driving signal and the high-frequency electric energy source to output a high-frequency electric driving signal based on the adjusting parameters; wherein the adjusting parameters comprise a power parameter and a frequency parameter, the power parameter is used for adjusting the power of the ultrasonic driving signal output by the ultrasonic energy source and the power of the high-frequency electric driving signal output by the high-frequency electric energy source, the frequency parameter is used for adjusting the frequency of the ultrasonic driving signal output by the ultrasonic energy source and/or the frequency of the high-frequency driving signal output by the high-frequency electric energy source,
wherein the surgical instrument comprises one or more of an ultrasonic electrotome, an ultrasonic blade, a monopolar electrotome, and a bipolar electrotome.
2. The output device outputting a drive signal to a surgical instrument of claim 1, wherein the control module obtains an adjustment parameter based on the ultrasonic feedback signal and a high frequency electrical feedback signal, comprising:
obtaining acoustic impedance based on the ultrasonic feedback signal and electrical impedance based on the high-frequency electrical feedback signal;
matching the acoustic and/or electrical impedance to impedance data to determine a tissue type;
matching the acoustic and/or electrical impedance to the impedance data based on the tissue type to obtain a power parameter.
3. The output device to output a drive signal to a surgical instrument according to claim 2, the control module further to:
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;
and matching the acoustic impedance and/or 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.
4. The output device for outputting a drive signal to a surgical instrument of claim 1, wherein the control module is further configured to control the duration of the output signals of the ultrasonic energy source and the high frequency electrical energy source.
5. The output device that outputs a drive signal to a surgical instrument according to claim 1, wherein the control module further comprises:
the first processing module is used for carrying out digital filtering and digital operation on the ultrasonic feedback signal so as to obtain acoustic impedance;
and the second processing module is used for carrying out digital filtering and digital operation on the high-frequency electric feedback signal so as to obtain the electric impedance.
6. The output device that outputs a drive signal to a surgical instrument according to claim 1,
the ultrasonic energy source comprises: the ultrasonic frequency adjusting module, the ultrasonic power adjusting module and the ultrasonic signal generator are connected with the ultrasonic power adjusting module;
the high-frequency electric energy source includes: the device comprises a high-frequency electric frequency adjusting module, a high-frequency electric power adjusting module and a high-frequency electric signal generator.
7. The output device that outputs a drive signal to a surgical instrument according to claim 1, wherein the ultrasonic signal acquisition circuit includes: the device comprises 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.
8. The output device that outputs a drive signal to a surgical instrument according to claim 1, wherein the high-frequency electric signal acquisition circuit includes: the device 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.
9. The output device for outputting a drive signal to a surgical instrument of claim 1, wherein the signal port is further configured to receive a manual switch signal of the surgical instrument and provide the signal to a control module;
and the control module is also used for controlling 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.
10. The output device for outputting a drive signal to a surgical instrument of claim 1, further comprising an input module for receiving a parameter setting;
and the control module is also used for controlling 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.
11. A surgical system includes an output device and a surgical instrument,
wherein the output device includes:
an ultrasonic energy source for outputting an ultrasonic drive signal;
a high frequency electrical energy source for outputting a high frequency electrical drive signal; the ultrasonic energy source and the high-frequency electric energy source are positioned in the same shell;
a signal port for connection with a surgical instrument to output the ultrasonic drive signal and/or the high frequency electrical drive signal to the surgical instrument;
the ultrasonic signal acquisition circuit is used for acquiring and processing signals in a connecting circuit of an ultrasonic energy source and the surgical instrument to obtain an ultrasonic feedback signal, and the ultrasonic feedback signal is provided to the control module and comprises an ultrasonic voltage feedback signal and an ultrasonic current feedback signal;
a high-frequency electric signal acquisition circuit for acquiring and processing signals in a connection circuit of a high-frequency electric energy source and the surgical instrument to obtain a high-frequency electric feedback signal, and providing the high-frequency electric feedback signal to a control module, wherein the high-frequency electric feedback signal comprises a high-frequency voltage feedback signal and a high-frequency current feedback signal;
a control module for obtaining an adjustment parameter based on the ultrasonic feedback signal and the high-frequency electrical feedback signal; and controlling the ultrasonic energy source to output an ultrasonic driving signal and the high-frequency electric energy source to output a high-frequency electric driving signal based on the adjusting parameters; wherein the adjusting parameters comprise a power parameter and a frequency parameter, the power parameter is used for adjusting the power of the ultrasonic driving signal output by the ultrasonic energy source and the power of the high-frequency electric driving signal output by the high-frequency electric energy source, and the frequency parameter is used for adjusting the frequency of the ultrasonic driving signal output by the ultrasonic energy source and/or the frequency of the high-frequency driving signal output by the high-frequency electric energy source;
the surgical instrument comprises an ultrasonic electrotome and a high-frequency electrotome, the ultrasonic electrotome and the high-frequency electrotome are connected with the output device through the signal port to obtain the ultrasonic driving signal and the high-frequency electric driving signal, and the high-frequency electrotome is one or two of a monopolar electrotome and a bipolar electrotome.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023104203A1 (en) * | 2021-12-09 | 2023-06-15 | 青岛迈博思医疗科技有限公司 | Device for outputting drive signal to surgical instrument, and surgical system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023104203A1 (en) * | 2021-12-09 | 2023-06-15 | 青岛迈博思医疗科技有限公司 | Device for outputting drive signal to surgical instrument, and surgical system |
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