CN210170159U - Variable frequency output electrosurgical generator and electrosurgical system - Google Patents
Variable frequency output electrosurgical generator and electrosurgical system Download PDFInfo
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- CN210170159U CN210170159U CN201822034621.8U CN201822034621U CN210170159U CN 210170159 U CN210170159 U CN 210170159U CN 201822034621 U CN201822034621 U CN 201822034621U CN 210170159 U CN210170159 U CN 210170159U
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Abstract
The utility model provides an electrosurgery generator and electrosurgery system of variable frequency output. An electrosurgical system with variable frequency output, comprising: the electrosurgical instrument comprises a high-frequency electrotome surgical instrument, an ultrasonic scalpel surgical instrument and an electrosurgical generator, wherein the high-frequency electrotome surgical instrument and the ultrasonic scalpel surgical instrument share one energy output interface or respectively use different energy output interfaces. The electrosurgical generator also has an energy switching system therein, which can switch the type of output energy at any time as required to avoid frequent replacement of surgical instruments.
Description
Technical Field
The invention relates to the field of electrosurgical medical instruments, in particular to an electrosurgical system which is applied to an energy platform of electrosurgery and can provide energy for a high-frequency surgical instrument and an ultrasonic surgical instrument by using the same interface in a time-sharing manner.
Background
Currently, in the field of electrosurgical medical instruments, high-frequency scalpel and ultrasonic scalpel related products are mainly used, and the high-frequency scalpel and the ultrasonic scalpel have advantages, and the working principle and the implementation mode are greatly different. The ultrasonic knife drive control mainly adopts the mode that the MOS tube works in a linear amplification region to obtain high-frequency sine wave energy to drive the transducer to convert electric energy into high-frequency mechanical vibration energy, and the mode has high loss and low efficiency and is suitable for small-power fine operation occasions. The high-frequency electrotome mainly adopts switching devices such as MOS (metal oxide semiconductor) tubes and the like to carry out high-frequency chopping on direct-current voltage and then LC (liquid crystal) filtering to realize the output of high-frequency sine wave energy, and the mode has high output power, high efficiency and wide application; however, the output harmonic content is large, the design requirement of the filter is high, and the tissue thermal damage is easily caused when the high power is output. The demand of integrating the high-frequency electric knife and the ultrasonic knife appears in the market at present, but the driving control modes of the high-frequency electric knife and the ultrasonic knife are different greatly and are difficult to integrate. If the driving and controlling modes can be unified, the circuit design can be greatly simplified, and the overall performance is improved.
Currently available commercial versions of the combination of high frequency electrosurgical and ultrasonic surgical blades are the olympus dual electrosurgical generator version and the robust G11 multiplex electrosurgical generator version. The principle of the scheme of the double-electrosurgery generator of olympus is that one ultrasonic knife electrosurgery generator USG-400 and one high-frequency electrosurgery generator ESG-400 are used for simultaneously providing energy for one surgical instrument, in fact, great innovation is only made on the surgical instrument, the energy providing mode is not changed greatly, and in addition, the double-electrosurgery generator is high in cost for users and complex in use. The G11 electrosurgical generator can be connected with an ultrasonic knife or a large vessel coagulation instrument, but the two instruments can be connected with one instrument at a time and cannot be switched rapidly; the functions of a common monopolar and a common bipolar electrotome cannot be provided, and the use of a high-frequency electrotome instrument is limited; in addition, the output power of G11 is low, and the use process has certain limitation.
Disclosure of Invention
In order to solve the technical problems, the driving and controlling systems of the high-frequency electrotome and the ultrasonic scalpel are unified, and the working principle of pulse width modulation is adopted. Only one set of power converter and one set of driving controller are needed in one electrosurgical generator, so that high-frequency alternating current electric energy can be output to supply a high-frequency electrotome instrument, and alternating current electric energy with lower frequency required by an ultrasonic electrotome instrument can also be output. The electrosurgical generator also has an energy switching system therein, which can switch the type of output energy at any time as required to avoid frequent replacement of surgical instruments. In addition, the maximum output power of the electrosurgical generator is not less than 200W, and the electrosurgical generator can meet most market demands.
In one aspect, the present invention provides a variable frequency output electrosurgical system comprising: a high-frequency electrotome surgical instrument and an ultrasonic scalpel surgical instrument, which share a common energy output interface, and an electrosurgical generator.
Further, the electrosurgical generator may provide both high frequency electrosurgical energy and ultrasonic blade low frequency energy, but only one type of energy may be output at a time, with the energy output determined in a preemptive manner. The energy conversion is automatically completed by the switching system.
In another aspect, the present invention provides a variable frequency output electrosurgical system comprising: the ultrasonic scalpel and electrotome integrated surgical instrument comprises an ultrasonic scalpel and electrotome integrated surgical instrument, a connecting cable and an electrosurgical generator, wherein the ultrasonic scalpel and electrotome integrated surgical instrument is connected with the electrosurgical generator through the connecting cable, the connecting cable is divided into a high-frequency cable and two ultrasonic cables which are respectively connected with corresponding interfaces on the ultrasonic scalpel and electrotome integrated surgical instrument.
Further, the ultrasonic knife and electrotome integrated surgical instrument comprises a cutting button and a coagulation button, and the ultrasonic knife and electrotome integrated surgical instrument controls the electrosurgical generator to output ultrasonic energy and high-frequency electric energy through the cutting button and the coagulation button respectively.
Further, when the cutting button is pressed down, ultrasonic energy is converted into mechanical vibration energy through the ultrasonic transducer through the cable and is transmitted to the cutter head; when the coagulation button is pressed down, high-frequency electric energy is respectively transmitted to the cutter head and the clamp through the high-frequency cable.
In another aspect, the present invention provides a variable frequency output electrosurgical system comprising: high frequency electrosurgical and ultrasonic surgical instruments and electrosurgical generators, the high frequency electrosurgical and ultrasonic surgical instruments each using a different electrosurgical generator energy output interface.
The present invention is directed to a variable frequency output electrosurgical system wherein the electrosurgical generator also provides a common single stage and a common bipolar surgical instrument interface.
In addition, the invention also provides an electrosurgical generator for an electrosurgical system with variable frequency output, wherein the internal system of the electrosurgical generator comprises a direct current power supply system, an adjustable DC/DC converter, an inverter system, a switching system, a filtering system, a control system and an output interface. The control system is used for controlling the energy output of the electrosurgical generator. The system consists of a plurality of modules, and mainly comprises an integrated control system, an output energy closed-loop control module, a feedback sampling conditioning module, a switching control logic module, a direct current driving module, an inversion driving module, a direct current voltage and direct current sampling module, an alternating current voltage and alternating current sampling module and a switching control system.
The main power loop of the electrosurgical generator mainly comprises a direct current power supply system, an adjustable DC/DC converter, an inverter system, a switching system, a filtering system and an output interface. The filtering system consists of two groups of filters, wherein the first group is a high-frequency energy output filtering channel and consists of a high-frequency isolation transformer and a low-pass filter; the second group is an ultrasonic energy output filtering channel which consists of a high-frequency isolation transformer and a low-pass filter.
The invention unifies the power output principle of the ultrasonic scalpel into the realization principle of the high-frequency electrotome, simultaneously realizes the use functions of the high-frequency electrotome and the ultrasonic scalpel by using one set of electrosurgical generator, greatly simplifies the design of a drive control system of the electrosurgical generator and reduces the equipment cost. Meanwhile, the surgical instruments can be effectively prevented from being frequently replaced by means of the rapid energy switching system, and the use experience of a user is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application and not to limit the application.
FIG. 1 is a schematic diagram of the components of a variable frequency output electrosurgical system according to the present invention;
FIG. 2 is another component schematic of the variable frequency output electrosurgical system of the present invention;
FIG. 3 is another component schematic of the variable frequency output electrosurgical system of the present invention;
FIG. 4 is a block diagram of an electrosurgical generator system of the present invention;
FIG. 5 is a schematic view of the main power circuit of the electrosurgical generator of the present invention, FIG. 1;
FIG. 6 is a schematic view of the main power circuit of the electrosurgical generator of the present invention FIG. 2;
FIG. 7 is a diagram of the Vab and V _ RF waveforms in the high frequency energy output mode;
FIG. 8 is a waveform diagram of Vab and V _ US in the ultrasonic energy output mode.
Detailed Description
The present application is further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, and certain elements of the drawings are omitted, enlarged or reduced in size or not to represent the actual dimensions of the product, so that the detailed description of the application will be better understood, and it will be understood that certain well-known structures in the drawings and descriptions thereof may be omitted, based on the detailed description of the application, and all other detailed descriptions obtained by those skilled in the art without inventive faculty will fall within the scope of the protection of the present application.
Referring to fig. 1, there is shown a schematic diagram of the variable frequency output electrosurgical system of the present invention, which is comprised of a high frequency electrosurgical instrument 10 and an ultrasonic electrosurgical instrument 30, and an electrosurgical generator 20, wherein the high frequency electrosurgical instrument 10 and the ultrasonic electrosurgical instrument 30 share an energy output interface 290. The electrosurgical generator 20 can provide both high frequency electrosurgical energy and ultrasonic blade low frequency energy, but can only output one at a time. The energy output is determined in a preemptive manner, namely: the previously fired instrument preferentially outputs and masks the output of the other instrument, reverting to the preemptive state when no instrument is fired. The conversion of the instrument excitation energy is automatically accomplished by switching system 240.
Referring to fig. 2, a schematic diagram of the variable frequency output electrosurgical system of the present invention is shown, wherein the electrosurgical generator 20 of the electrosurgical system is the same as the electrosurgical generator 20 of the system of fig. 1, and the ultrasonic scalpel-electrotome surgical instrument 50 is a high frequency electrosurgical-ultrasonic scalpel design. The surgical instrument 50 is connected to the electrosurgical generator 20 by a connection cable 40, the connection cable 40 being divided into two, a high frequency cable 41 and an ultrasound cable 42, each of which is connected to a respective interface on the surgical instrument 50. The surgical instrument 50 controls the electrosurgical generator to output ultrasonic energy and high-frequency electric energy through the cutting button 51 and the coagulation button 52, respectively, wherein the ultrasonic energy is converted into mechanical vibration energy through the ultrasonic transducer 53 and transmitted to the cutter head 55 through the cable 42 when the cutting button 51 is pressed; when the coagulation button 52 is pressed, high frequency power is transmitted to the cutting head 55 and the clamp 54 through the high frequency cable 41, respectively.
Fig. 3 is a schematic diagram of the variable frequency output electrosurgical system of the present invention, which is composed of the high frequency electrosurgical instrument 10 and the ultrasonic electrosurgical instrument 30, and the electrosurgical generator 20, wherein the high frequency electrosurgical instrument 10 and the ultrasonic electrosurgical instrument 30 respectively use different electrosurgical generator energy output interfaces. The electrosurgical generator operates in a manner consistent with system 1.
As shown in fig. 1, 2 and 3, the electrosurgical generator provides a common mono-polar and a common bi-polar surgical instrument interface in addition to the ultrasonic-knife-electrotome-integrated surgical instrument interface, and the surgeon can flexibly assemble and use the electrosurgical instrument interface as required, but only one surgical instrument interface can output energy at a time.
As shown in fig. 4, the internal system 200 of the electrosurgical generator 20 includes a DC power supply system 210, an adjustable DC/DC converter 220, an inverter system 230, a switching system 240, a filter system 260, a control system 250, and an output interface 290. The control system 250 is configured to perform energy output control of the electrosurgical generator and is composed of a plurality of modules, including an integrated control system 251, an output energy closed-loop control module 252, a feedback sampling conditioning module 253, a switching control logic module 254, a dc driver module 255, an inverter driver module 256, a dc voltage and dc current sampling module 270, an ac voltage and ac current sampling module 280, and a switching control module 257.
As shown in fig. 4, the feedback sampling and conditioning module 253 is used for conditioning the power signal fed back by the dc voltage and dc current sampling module 270 and the ac voltage and ac current sampling module 280 into a feedback power signal that can be used by the integrated control system 251; the integrated control system 251 is a complex control system composed of digital control chips such as an MCU, a DSP or an FPGA, and can perform output energy closed-loop control 252 according to a user instruction and feedback electric quantity and generate a corresponding switching strategy by the switching control logic module 254; the DC driver module 255 controls the output voltage of the adjustable DC/DC converter 220 according to the output of the module 252; the inverter drive module 256 controls the inversion of the inverter system 230 according to the output of the module 252; the switching control system 257 controls the switching system 240 to perform the power loop switching operation according to the switching policy generated by the module 254.
As shown in fig. 4, the main power circuit of the electrosurgical generator 20 mainly includes a DC power supply system 210, an adjustable DC/DC converter 220, an inverter system 230, a switching system 240, a filter system 260, and output interfaces 291 and 292. The filtering system 260 consists of two groups of filters, wherein the first group is a high-frequency energy output filtering channel and consists of a high-frequency isolation transformer 261 and a low-pass filter 263; the second group is an ultrasonic energy output filtering channel, which is composed of a high-frequency isolation transformer 262 and a low-pass filter 264.
As shown in fig. 5, the DC power supply system 210 supplies power to the adjustable DC/DC converter 220, and the adjustable DC/DC converter 220 outputs a specified DC voltage to the inverter system 230 through the DC driving module 255 according to a given signal of the controller 250; the inverter system 230 is controlled by the control system 250 and driven by the inverter driving module 256, and the dc voltage is chopped into high-frequency ac square-wave voltages Vab with different frequencies and different pulse widths as required, and the frequency of the ac square-wave voltages Vab is linearly adjustable within a range from 300kHz to 1 MHz. Vab is a high frequency ac pulse electrical energy that must be converted to continuous ac sine wave energy by the filter system 260 for use by the surgical instruments. The switching system 240 selects an output channel of Vab according to a given signal of the controller 250.
As shown in fig. 5, the main loop of the inverter system 230 may employ any form of DC/AC converter topology, including but not limited to an H-bridge topology. The present case is only illustrated by an H-bridge topology, where the H-bridge includes four power switching devices (e.g., power MOSFETs, IGBTs, etc.) 231 and 234, which perform switching according to 4 driving signals outputted by the controller to obtain a specific PWM chopping voltage Vab.
As shown in fig. 5, the adjustable DC/DC converter 220 may adjust the supplied DC voltage of the inverter system 230 in real time according to the actual output condition, and the output of the adjustable DC/DC converter 220 is preferentially matched with the output power of the electrosurgical generator in the default condition, so that the inverter system 230 always operates at a higher DC voltage utilization rate. The higher direct-current voltage utilization rate is beneficial to improving the energy conversion efficiency of the inverter system 230, and can effectively reduce the harmonic content of the output waveform, and the effect is particularly obvious when the system works in a light-load state. When the AC output needs higher peak value factor, the AC voltage output with higher peak value factor can be more easily obtained by matching with the adjustment of the DC voltage value, thereby obtaining better tissue coagulation effect.
As shown in fig. 5, the switching system 240 is configured to select an energy output channel according to an actual operating mode, the switching system 240 performs output channel switching by using a switch, where the switch may be an electrically controlled physical switch (e.g., a relay, a contactor, etc.) or an electronic switch (e.g., a power switch device such as a MOS, an IGBT, a thyristor, etc.), and the selection of the output channel is determined by a switching strategy generated by the switching control logic module 254 in fig. 3. When the high-frequency energy output mode is operated, the switch 241 is closed (namely, the first switch), the switch 242 (namely, the second switch) is opened, and the high-frequency energy is output to interfaces 291 and 292 through the high-frequency isolation transformer 261 and the low-pass filter 263; when the ultrasonic energy output module works in the ultrasonic energy output mode, the switch 241 is opened, the switch 242 is closed, and the high-frequency energy is output to the interfaces 293 and 294 through the high-frequency isolation transformer 262 and the low-pass filter 264.
As shown in fig. 5, the 291 and 292 interfaces and the 293 and 294 interfaces are connected in parallel, and the high-frequency energy and the ultrasonic energy are finally output through the 291-292 interfaces, which may correspond to system composition scheme 1 and system composition scheme 2. As shown in fig. 6, the 291 and 292 interfaces and the 293 and 294 interfaces are independent from each other, the high frequency energy is finally output through the 291 and 292 interfaces, the ultrasonic energy is finally output through the 293 and 294 interfaces, the two interfaces are independent from each other on the output channel, and the connection mode can correspond to the system composition scheme 3.
As shown in FIG. 7, Vab is the high frequency AC pulse voltage waveform when the electrosurgical generator 20 is operating in the high frequency energy output mode, and V _ RF is the high frequency AC sine waveform after passing through the high frequency isolation boost 261 and low pass filter 263 loop. Vab in the high-frequency energy output mode is a series of alternating-current square-wave voltages with fixed phase difference and adjustable pulse width, and the frequency of the alternating-current square waves is above 300 kHz.
As shown in FIG. 8, Vab is the pulse width modulated voltage waveform of the electrosurgical generator 20 when operating in the ultrasonic energy output mode, and V _ US is the AC sinusoidal waveform after passing through the high frequency isolation boost 262 and low pass filter 264 loop. Vab in the ultrasonic energy output mode is generated by adopting a pulse width modulation mode, the fundamental frequency is matched with the frequency required by the ultrasonic transducer, generally within 100kHz, and the carrier frequency is more than 10 times of the fundamental frequency. Vab is filtered and then is changed into pure sine wave voltage V _ US with extremely low harmonic content, and the requirement of driving energy of the ultrasonic knife transducer is met.
Example one
With the electrosurgical system of fig. 1, a surgeon can use the high frequency electrosurgical instrument 10 and the ultrasonic scalpel surgical instrument 30 to output the required energy to perform tissue cutting, hemostasis, and coagulation as needed during a surgical procedure.
The system does not support simultaneous firing of two instruments, but the design is reasonable considering that the doctor is very easy to distract from operating the two instruments simultaneously and the adverse effect is caused. In addition, the situation that the ultrasonic knife and the electric knife are used simultaneously is less in practice, and the requirement is not over demanding.
Example two
With the electrosurgical system of fig. 2, the surgeon operates the ultrasonic-electrosurgical instrument 50 with one hand, and the surgeon may perform tissue cutting with ultrasonic energy by pressing the cutting button 51, or perform tissue or vessel coagulation with high frequency electrosurgical energy by pressing the coagulation button 52, as desired.
The system not only does not support the simultaneous excitation of two buttons on the circuit, but also considers the fool-proofing on the structural design of the buttons of the instrument, and ensures that only one button can be pressed down at a certain moment. Since the cutting and coagulation operations cannot be performed simultaneously during the actual surgical procedure.
EXAMPLE III
With the electrosurgical system of fig. 3, the surgeon can use the high frequency electrosurgical instrument 10 and the ultrasonic scalpel surgical instrument 30 to output the required energy to perform tissue cutting, hemostasis, and coagulation as needed during the procedure.
The system does not support simultaneous firing of two instruments, but the design is reasonable considering that the doctor is very easy to distract from operating the two instruments simultaneously and the adverse effect is caused. In addition, the situation that the ultrasonic knife and the electric knife are used simultaneously is less in practice, and the requirement is not over demanding.
It should be noted that the embodiments shown in the drawings are merely representative examples of the present invention, and those skilled in the art will readily understand that the scope of the present invention is not limited to the embodiments shown in the drawings, and that combinations, modifications and variations of the embodiments shown in the drawings fall within the scope of the present invention.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (31)
1. A variable frequency output electrosurgical system comprising: high-frequency electrosurgical (10) and ultrasonic (30) surgical instruments and an electrosurgical generator (20), characterized in that the high-frequency electrosurgical (10) and ultrasonic (30) surgical instruments share one energy output interface (290).
2. Electrosurgical system with variable frequency output according to claim 1, characterized in that the electrosurgical generator (20) can supply both high frequency electrosurgical energy and ultrasonic blade low frequency energy, but can only output one at a time, the energy output being determined in a preemptive manner.
3. Electrosurgical system with variable frequency output according to claim 1, characterized in that the transformation of energy is done automatically by a switching system (240).
4. The variable frequency output electrosurgical system according to claim 1, wherein the electrosurgical generator (20) further provides a common mono-polar and a common bi-polar surgical instrument interface.
5. A variable frequency output electrosurgical system comprising: the ultrasonic knife and electrotome integrated surgical instrument (50), the connecting cable (40) and the electrosurgical generator (20) are characterized in that the ultrasonic knife and electrotome integrated surgical instrument (50) is connected with the electrosurgical generator (20) through the connecting cable (40), and the connecting cable (40) is divided into two strands of a high-frequency cable (41) and an ultrasonic cable (42) which are respectively connected with corresponding interfaces on the ultrasonic knife and electrotome integrated surgical instrument (50).
6. The variable frequency output electrosurgical system according to claim 5, wherein the ultrasonic-knife-and-electrotome-integrated surgical instrument (50) includes a cutting button (51) and a coagulation button (52), the surgical instrument (50) controlling the electrosurgical generator (20) to output ultrasonic energy and high-frequency electrical energy through the cutting button (51) and the coagulation button (52), respectively.
7. The variable frequency output electrosurgical system according to claim 6, wherein ultrasonic energy is converted by the ultrasonic transducer (53) through the cable (42) into mechanical vibrational energy that is transmitted to the cutting head (55) when the cutting button (51) is depressed; when the coagulation button (52) is pressed, high-frequency electric energy is transmitted to the cutter head (55) and the clamp (54) through the high-frequency cable (41), respectively.
8. The variable frequency output electrosurgical system according to claim 5, wherein the electrosurgical generator (20) further provides a common mono-polar and a common bi-polar surgical instrument interface.
9. A variable frequency output electrosurgical system comprising: high frequency electrosurgical (10) and ultrasonic (30) surgical instruments and an electrosurgical generator (20), characterized in that the high frequency electrosurgical (10) and ultrasonic (30) surgical instruments use different electrosurgical generator energy output interfaces, respectively.
10. The variable frequency output electrosurgical system according to claim 9, wherein the electrosurgical generator (20) further provides a common mono-polar and a common bi-polar surgical instrument interface.
11. An electrosurgical generator (20), wherein the electrosurgical generator (20) is for a variable frequency output electrosurgical system according to any one of claims 1 to 10, comprising an internal system (200), the internal system (200) comprising a DC power supply system (210), an adjustable DC/DC converter (220), an inverter system (230), a switching system (240), a filtering system (260), a control system (250) and an output interface (290), wherein the control system (250) is configured to perform energy output control of the electrosurgical generator (20).
12. The electrosurgical generator (20) according to claim 11, wherein the internal system (200) further includes a dc voltage and dc current sampling module (270), an ac voltage and ac current sampling module (280), and a switching control system (257).
13. The electrosurgical generator (20) according to claim 12, wherein the control system (250) generally includes an integrated control system (251), an output energy closed loop control module (252), a feedback sampling conditioning module (253), a switching control logic module (254), a dc drive module (255), and an inverter drive module (256).
14. The electrosurgical generator (20) according to claim 13, wherein the feedback sample conditioning module (253) is configured to condition the charge signal fed back by the dc voltage and dc current sampling module (270) and the ac voltage and ac current sampling module (280) into a feedback charge signal usable by the integrated control system (251).
15. Electrosurgical generator (20) according to claim 13, characterized in that the integrated control system (251) is a complex control system consisting of MCU, DSP or FPGA digital control chip, able to output energy to the output energy closed-loop control module (252) according to user instructions and feedback electric quantity, while the corresponding switching strategy is generated by the switching control logic module (254).
16. The electrosurgical generator (20) according to claim 13, wherein the DC drive module (255) controls the output voltage of the adjustable DC/DC converter (220) according to a given output of the output energy closed loop control module (252).
17. The electrosurgical generator (20) according to claim 13, wherein the inverter drive module (256) outputs inverter control for a given control inverter system (230) according to an output energy closed loop control module (252).
18. The electrosurgical generator (20) according to claim 13, wherein the switching control system (257) controls the switching system (240) to perform a power circuit switching operation in accordance with a switching strategy generated by the switching control logic module (254).
19. Electrosurgical generator (20) according to claim 11, characterized in that the filtering system (260) consists of two sets of filters, the first set being a high frequency energy output filtering channel, consisting of a high frequency isolation transformer (261) and a low pass filter (263); the second group is an ultrasonic energy output filtering channel which consists of a high-frequency isolation transformer (262) and a low-pass filter (264).
20. Electrosurgical generator (20) according to claim 11, characterized in that the direct current supply system (210) supplies the adjustable DC/DC converter (220), the adjustable DC/DC converter (220) controlling the output of a specified direct voltage to the inverter system (230) via a direct current drive module (255) according to a given signal of the control system (250); the inverter system (230) is controlled by the control system (250) and driven by an inverter driving module (256), and chops the direct-current voltage into high-frequency alternating-current square-wave voltages Vab with different frequencies and different pulse widths according to requirements.
21. Electrosurgical generator (20) according to claim 20, characterized in that the frequency of the alternating square-wave voltage Vab is linearly adjustable in the range 300kHz to 1 MHz.
22. Electrosurgical generator (20) according to claim 20, characterized in that the switching system (240) selects the output channel of Vab according to a given signal of the control system (250).
23. The electrosurgical generator (20) according to claim 11, wherein the inversion system (230) main circuit may employ any form of DC/AC converter topology.
24. The electrosurgical generator (20) according to claim 23, wherein the topology includes, but is not limited to, an H-bridge topology.
25. The electrosurgical generator (20) according to claim 11, wherein the adjustable DC/DC converter (220) adjusts the DC voltage supplied to the inverter system (230) in real time based on actual output conditions, and the output of the adjustable DC/DC converter (220) is preferentially matched to the output power of the electrosurgical generator (20) by default, such that the inverter system (230) always operates at a higher DC voltage utilization.
26. Electrosurgical generator (20) according to claim 11, characterized in that the switching system (240) switches the output channels in the form of switches, either electrically controlled physical switches or electronic switches, the selection of the output channels being determined by a switching strategy generated by a switching control logic module (254).
27. Electrosurgical generator (20) according to claim 26, characterized in that the switches comprise a first switch (241), a second switch (242), when operating in the high frequency energy output mode, the first switch (241) is closed, the second switch (242) is open, high frequency energy is output to the first energy output interfaces (291 and 292) via the high frequency isolation transformer (261) and the low pass filter (263); when the ultrasonic energy output device works in an ultrasonic energy output mode, the first switch (241) is opened, the second switch (242) is closed, and high-frequency energy is output to the second energy output interfaces (293 and 294) through the high-frequency isolation transformer (262) and the low-pass filter (264).
28. Electrosurgical generator (20) according to claim 27, characterized in that the first energy output interface (291 and 292) and the second energy output interface (293 and 294) are connected in parallel, high frequency energy and ultrasonic energy being finally output through the first energy output interface (291 and 292).
29. Electrosurgical generator (20) according to claim 27, characterized in that the first energy output interface (291 and 292) and the second energy output interface (293 and 294) are independent of each other, high frequency energy being finally output via the first energy output interface (291 and 292) and ultrasonic energy being finally output via the second energy output interface (293 and 294), both independent of each other on the output channel.
30. Electrosurgical generator (20) according to claim 20, characterized in that the Vab in the high-frequency energy output mode is a series of alternating square-wave voltages with fixed phase difference and adjustable pulse width, the alternating square-wave frequency being above 300 kHz.
31. Electrosurgical generator (20) according to claim 20, characterized in that Vab in the ultrasonic energy output mode is generated by pulse width modulation, the fundamental frequency matching the desired frequency of the ultrasonic transducer (53), the carrier frequency being more than 10 times the fundamental frequency within 100 kHz.
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| CN111643183A (en) * | 2020-05-27 | 2020-09-11 | 大连理工大学 | Output mode switching self-matching high-frequency electrotome power supply circuit |
| CN113116465A (en) * | 2021-04-16 | 2021-07-16 | 北京速迈医疗科技有限公司 | Ultrasonic surgical system |
| WO2023104197A1 (en) * | 2021-12-09 | 2023-06-15 | 青岛迈博思医疗科技有限公司 | Method, device and apparatus for outputting driving signal to surgical instrument, and electronic device |
| 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 |
| WO2023124755A1 (en) * | 2021-12-31 | 2023-07-06 | 武汉迈瑞医疗技术研究院有限公司 | Integrated surgical system |
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| CN111643183A (en) * | 2020-05-27 | 2020-09-11 | 大连理工大学 | Output mode switching self-matching high-frequency electrotome power supply circuit |
| CN111643183B (en) * | 2020-05-27 | 2023-06-23 | 大连理工大学 | Output mode switching self-matching high-frequency electrotome power supply circuit |
| CN113116465A (en) * | 2021-04-16 | 2021-07-16 | 北京速迈医疗科技有限公司 | Ultrasonic surgical system |
| WO2023104197A1 (en) * | 2021-12-09 | 2023-06-15 | 青岛迈博思医疗科技有限公司 | Method, device and apparatus for outputting driving signal to surgical instrument, and electronic device |
| 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 |
| WO2023124755A1 (en) * | 2021-12-31 | 2023-07-06 | 武汉迈瑞医疗技术研究院有限公司 | Integrated surgical system |
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Address after: Block A, 199 Lane 1, Tianxiong Road, Pudong New Area, Shanghai, 201318 Patentee after: Shanghai Yisi Medical Technology Co.,Ltd. Address before: Block A, 199 Lane 1, Tianxiong Road, Pudong New Area, Shanghai, 201318 Patentee before: SHANGHAI YISI MEDICAL TECHNOLOGY Co.,Ltd. |