CN215937635U - Digital minimally invasive high-frequency energy working system - Google Patents
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- CN215937635U CN215937635U CN202020979183.7U CN202020979183U CN215937635U CN 215937635 U CN215937635 U CN 215937635U CN 202020979183 U CN202020979183 U CN 202020979183U CN 215937635 U CN215937635 U CN 215937635U
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Abstract
The utility model relates to a digital minimally invasive high-frequency energy working system, wherein an output circuit of a high-frequency signal generator connected with a high-frequency power amplifier outputs signals to an operation electrode through a matching circuit; a coupling sampling circuit is arranged between the high-frequency power amplifier and the operation electrode and is used for accurately sampling the load in real time and transmitting the sampled load to a digital signal processing circuit for processing; the control circuit selects different matching circuits to adjust the constant power or the output voltage amplitude of the output signal according to the processing result of the digital signal processing circuit. The system operation electrode has the output signal frequency of more than 2MHz, the system has high intelligent digitization degree, high control precision, simple operation, safety and reliability, and little thermal damage to tissues around a human body, and can ideally realize the minimally invasive operation of digitally controlling constant-power electrosection and electrocoagulation on different loads with large impedance range change.
Description
Technical Field
The utility model relates to an electrosurgical instrument for transferring non-mechanical energy to a human body by heating tissues with high-frequency electromagnetic energy, in particular to a digital minimally invasive high-frequency energy working system.
Background
The digital minimally invasive high-frequency energy working system is an electrosurgery working system for replacing a mechanical scalpel or a traditional electrotome to cut or coagulate tissue. The digital control high-frequency energy generated by the tip of the effective electrode heats the tissue when contacting with the body of a patient, so that the separation or damage of the human tissue is realized, and the minimally invasive aims of cutting and hemostasis are further fulfilled.
The existing high-frequency electrotome mostly adopts two-pole output signals below 1MHz and generally 300-550 KHz, and has a plurality of problems. Firstly, the equipment has low control precision, no real-time tissue impedance detection and no constant power control working mode; secondly, the remote setting and monitoring function is lacked; thirdly, the frequency of output signals is low, the generated thermal effect is limited, carbide is formed on a cutting interface, the wound is not easy to heal quickly, scars are easy to form, and even adhesion is generated; and fourthly, the negative plate needs to be placed on the body of the patient, which affects the operation safety and even burns the patient. The current can generate side effect to human body when the time is too long; fifthly, the application range is limited, and other equipment such as an argon gas supply device and the like are required to be matched for coagulation when large-area diffuse bleeding occurs. The frequency of the output signal is increased, and the normal work of other peripheral electronic equipment is easily interfered.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the digital minimally invasive high-frequency energy working system is provided, and the problems of low precision, side effect, safety and the like of the existing minimally invasive high-frequency electrotome are solved.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a digital minimally invasive high-frequency energy working system comprises a power supply module, a high-frequency signal generator, a high-frequency power amplifier and an operation electrode; the high-frequency signal generator outputs signals to the operation electrode through an output circuit behind the high-frequency power amplifier; the power module provides power for the high-frequency signal generator, and the system also comprises a digital signal processing circuit and a control circuit which are connected with each other; a coupling sampling circuit is arranged between the high-frequency power amplifier and the operation electrode and is used for sampling the load in real time and transmitting sampling information to the digital signal processing circuit for processing; a matching circuit is also arranged between the output circuit of the high-frequency power amplifier and the operation electrode; the control circuit selects different matching circuits to regulate the constant power or the output voltage amplitude of the output signal output to the surgical electrode according to the processing result of the digital signal processing circuit; the frequency of the output signal output to the operation electrode by the system reaches more than 2 MHz.
As some embodiments, the system further comprises a working mode setting and displaying module; the working mode setting and displaying module sets the output energy size and/or the output mode of the surgical electrode through the control circuit and is also used for displaying set parameters and/or the working state of the system; the amplitude of the output signal frequency of the high-frequency power amplifier is adjustable; the output signal frequency is 2 MHz-5 MHz; the output power of the high-frequency power amplifier reaches 200W, and the output is isolated from the ground.
Furthermore, the control circuit is a control circuit which can set the output energy size and adjust the duty ratio of the output waveform by adopting a singlechip or a DSP; the coupling sampling circuit is used for accurately sampling the load and outputting the load to the digital signal processing circuit for fast analog-digital signal conversion to obtain an impedance value of the load; the selection of the matching circuits with different parameters is realized by adopting a relay, and the on-off of a coil of the relay is controlled by a control circuit.
Further, the control circuit controls the relay to select the secondary boost resonance circuit or the tertiary boost resonance circuit to regulate the constant power or the output voltage amplitude of the output signal; the secondary boost resonance circuit is formed by cascading an inductor L2, a capacitor C3, an inductor L3 and a load capacitor; when the load impedance value obtained by the initial sampling of the coupling sampling circuit to the load is small, the control circuit controls the relays LS1 and LS2 to select the secondary boost resonant circuit so as to ensure constant power output; the three-stage boosting resonant circuit is formed by cascading an inductor L2, a capacitor C31, an inductor L31, a capacitor C32, an inductor L32 and a load capacitor; when the load impedance value obtained by the initial sampling of the coupling sampling circuit to the load is large, the control circuit controls the relays LS1 and LS2 to select the three-stage boost resonant circuit so as to ensure constant power output.
Furthermore, the coupling sampling circuit can sample voltage and current data of the load and transmit the data to the digital signal processing circuit for rapid analog-digital signal conversion and processing to obtain an impedance value of the load; the coupling sampling circuit is a mutual inductor or a resistance sampling device.
Further, the power supply module is an output voltage adjustable AC/DC power supply module with power factor correction; the control circuit controls the output direct-current voltage of the AC/DC power supply module to regulate the constant power or the output voltage amplitude of the output signal of the high-frequency power amplifier.
Furthermore, a high-frequency transformer is arranged between the high-frequency power amplifier and the matching circuit, and the high-frequency transformer is used for electrically isolating the input commercial power from the output of the high-frequency power amplifier so as to protect an operator and inhibit high-frequency clutter; and a driving amplification circuit is connected between the high-frequency signal generator and the high-frequency power amplifier and is used for driving the high-frequency power amplifier.
Furthermore, the system also comprises an operation electrode identification module, wherein the operation electrode identification module is connected with the operation electrode and is used for automatically identifying and judging the connected operation electrode and automatically setting the maximum output power of the operation electrode; the system also comprises a negative plate detection and control module, wherein the negative plate detection and control module is connected with the operation electrode and is used for monitoring the adhesion degree of the negative plate and tissues in real time and displaying or alarming; the negative plate detection and control module is set to display or alarm with the display module or alarm through the sound reminding module in the working mode.
Further, the system also comprises a remote monitoring module; the remote monitoring module is used for remotely controlling and setting and monitoring working parameters and states of the system in real time through a communication network; the remote monitoring module is connected with the working mode setting and displaying module.
Furthermore, the system also comprises a sound reminding module which is used for setting and displaying the system state of the module and/or various monitoring modules according to the working mode and sending out sounds with different frequencies.
The utility model has the beneficial effects that:
the digital minimally invasive high-frequency energy working system of the utility model outputs a signal with a frequency higher than 2MHz, preferably 2 MHz-5 MHz, constant power output and adjustable magnitude. The digital minimally invasive high-frequency energy working system has the advantages of high intelligent digitization degree, high control precision, simple operation, safety, reliability and less thermal injury to tissues around a human body, and can ideally realize the minimally invasive surgery of constant power electrotomy and electrocoagulation on different loads with large impedance range change.
The present invention is described in further detail below with reference to the attached drawing figures.
Drawings
Fig. 1 is a block diagram of a digital minimally invasive high-frequency energy working system according to an embodiment of the utility model.
Fig. 2 is a circuit diagram of a high frequency power amplifier of a digital minimally invasive high frequency energy operating system in accordance with an embodiment of the utility model.
Fig. 3 is a schematic diagram of a matching circuit of the digital minimally invasive high frequency energy operating system of an embodiment of the utility model.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict, and the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a digital minimally invasive high-frequency energy working system, wherein an output circuit of a high-frequency signal generator connected with a high-frequency power amplifier outputs signals to an operation electrode through a matching circuit; a coupling sampling circuit is arranged between the high-frequency power amplifier and the operation electrode and is used for accurately and quickly sampling the load and transmitting the load to a digital signal processing circuit for processing; the control circuit selects different matching circuits to adjust the constant power or the output voltage amplitude of the output signal according to the processing result of the digital signal processing circuit. The system operation electrode has the output signal frequency of more than 2MHz, the system has high intelligent digitization degree, high control precision, simple operation, safety and reliability, and little thermal damage to tissues around a human body, and can ideally realize the minimally invasive operation of digitally controlling constant-power electrosection and electrocoagulation on different loads with large impedance range change.
Referring to fig. 1, a digital minimally invasive high-frequency energy working system includes a high-frequency signal generator 1, a driving amplifier circuit 2, a high-frequency power amplifier 3, a high-frequency transformer 4, a matching circuit 5, a surgical electrode 6, a control circuit 7, an AC/DC power module 8, a digital signal processing circuit 9, a coupling sampling circuit 10, a working mode setting and displaying module 11, a remote monitoring module 12, a negative plate detection and control module 13, a surgical electrode identification module 14, and a sound reminding module 15. The frequency of the output signal output to the operation electrode 6 by the system is higher than 2MHz and can reach 5MHz, the output power reaches 200W, and the output is isolated from the ground.
The output end of the high-frequency signal generator 1 is electrically connected with the drive amplifying circuit 2 and the high-frequency power amplifier 3 to form an output circuit which outputs a high-frequency pulse signal, and the output circuit outputs the high-frequency signal to the operation electrode 6.
A matching circuit 5 is arranged between the high-frequency power amplifier 3 and the operation electrode 6. Further, the high frequency power amplifier 3 is connected to a matching circuit 5 through a high frequency transformer 4.
A coupling sampling circuit 10 is arranged between the high-frequency power amplifier 3 and the operation electrode 6.
The coupling sampling circuit 10 is connected to the digital signal processing circuit 9 and transmits sampling information for the load.
The operation electrode 6 is connected with the negative plate detection and control module 13 and the operation electrode identification module 14.
The control circuit 7 is connected with the digital signal processing circuit 9, the driving amplifying circuit 2, the matching circuit 5, the AC/DC power supply module 8, the working mode setting and displaying module 11, the negative plate detecting and controlling module 13, the operation electrode identifying module 14 and the voice reminding module 15 and controls or receives the work and information of the electronic components.
The AC/DC power supply module 8 is connected with electronic components such as the high-frequency signal generator 1, the driving amplifying circuit 2, the high-frequency power amplifier 3, the control circuit 7, the digital signal processing circuit 9, the working mode setting and displaying module 11, the remote monitoring module 12, the sound reminding module 15 and the like, and is used for providing power. It will be appreciated that these electronic components may also have independent power supplies.
The high-frequency signal generator 1 is supplied with working power by the power module 8 to generate a high-frequency signal. Preferably, the power module 8 is an AC/DC multi-output power module, and is connected to a commercial power to convert an alternating current into a multi-direct current.
The drive amplifier circuit 2 is used to power-amplify the high-frequency signal output from the high-frequency signal generator 1 and drive the high-frequency power amplifier 3. The frequency of the output signal of the high frequency power amplifier 3 is between 2 MHz-5 MHz and the amplitude of the output signal is adjustable. The control circuit 7 controls the output direct-current voltage of the AC/DC power supply module 8 in real time to adjust the amplitude of the output signal of the high-frequency power amplifier 3, so that high-precision constant-power control or voltage amplitude adjustment is realized. The output power of the high-frequency power amplifier 3 reaches 200W, and the output is isolated from the ground. As a specific example, a circuit diagram of the high frequency power amplifier refers to fig. 2.
The high-frequency transformer 4 is connected between the high-frequency power amplifier 3 and the matching circuit 5, and is used for electrically isolating the input commercial power from the output of the high-frequency power amplifier 3 to protect the patient and suppress high-frequency noise.
The matching circuit 5 is a matching circuit 5 with different parameters selected by the control circuit 7 according to the load impedance value obtained by real-time high-speed sampling of the coupling sampling circuit 10, and the output signal output from the high-frequency power amplifier 3 to the operation electrode 6 is regulated by constant power or output voltage amplitude. The selection of the matching circuits 5 with different parameters is realized by adopting a relay combination, and the on-off of the coil of the relay is controlled by a control circuit 7. Reference is made to a specific example of the matching circuit 5 shown in fig. 3. The specific working principle of the matching circuit 5 is as follows: if the load impedance value obtained after the initial sampling of the load by the coupling sampling circuit 10 is small, in order to ensure constant power output, the control circuit 7 controls the relays LS1 and LS2 to select a two-stage boost resonant circuit. The two-stage boost resonant circuit is formed by cascading an inductor L2, a capacitor C3, an inductor L3 and a load capacitor. If the load impedance value obtained after initial sampling is large, in order to ensure constant power output, the control circuit 7 controls the relays LS1 and LS2 to select a three-stage boost resonant circuit. The three-stage boost resonant circuit is formed by cascading an inductor L2, a capacitor C31, an inductor L31, a capacitor C32, an inductor L32 and a load capacitor.
The control circuit 7 can adopt a single chip microcomputer or a DSP, the control circuit 7 receives data signals of the digital signal processing circuit 9 and selects different matching circuits 5 to adjust the constant power or the output voltage amplitude of the output signals of the high-frequency power amplifier 3.
The power supply module 8 is an output voltage adjustable AC/DC power supply module with power factor correction. The AC/DC power module 8 is electrically connected to the high-frequency signal generator 1, and is connected to the AC mains supply and converts the AC mains supply into a DC power supply to the high-frequency signal generator 1 to generate a high-frequency signal. The AC/DC power supply module 8 is electrically connected to the high-frequency power amplifier 3 (specifically, the driving amplifier circuit 2 and the high-frequency power amplifier 3), and the control circuit 7 controls the magnitude of the output DC voltage of the AC/DC power supply module 8 to adjust the amplitude of the high-frequency power amplifier 3. The output energy and the output mode can be set to the control circuit 7 by the operation mode setting and displaying module 11.
The coupling sampling circuit 10 is used for accurately sampling the load, sampling the output voltage and current, and outputting the sampling result to the digital signal processing circuit 9 for fast analog-digital signal conversion and processing.
The digital signal processing circuit 9 processes the real-time sampling result of the coupling sampling circuit 10 to obtain load impedance, and outputs the load impedance to the control circuit 7, and the control circuit 7 controls and selects the matching circuits 5 with different parameters and adjusts the output voltage amplitude or constant power of the output signal.
The operation electrode identification module 14 can automatically identify and judge the connected operation electrode, and can automatically set the maximum output power through the working mode setting and display module 11.
The negative plate detection and control module 13 is used for monitoring the adhesion degree of the negative plate of the operation electrode and tissues in real time, and can directly display or give an alarm or set the adhesion degree of the negative plate and the tissues through the control circuit 7 and the working mode and display or give an alarm through the display module 11, or remind the module 15 through sound.
The remote monitoring module 12 can remotely control and set and monitor the working parameters and states of the system in real time by using a computer through a communication network.
The working mode setting and displaying module 11 is used for setting the output energy size and the output mode and displaying the set parameters and the real-time working state of the system.
The sound reminding module 15 generates sounds with different frequencies according to the platform states of the working mode setting and display module 11 and various monitoring modules.
The working process of the digital minimally invasive high-frequency energy working system of the embodiment is as follows:
the system is connected with alternating current commercial power, the working mode and the output intensity of the operation electrode 6 are selected through the working mode setting and displaying module 11, and the operation electrode enters a preparation working state. A foot switch or a manual switch is stepped on, at the moment, a coupling sampling circuit 10 initially samples and then processes the sampled signals through a digital signal processing circuit 9 to obtain load impedance, and a control circuit 7 controls a relay to select different matching circuits 5 according to the load impedance; meanwhile, the load impedance is obtained by real-time and rapid sampling through the control circuit 7 and the coupling sampling circuit 10 and then processed by the digital signal processing circuit 9, and the amplitude of the output signal of the high-frequency power amplifier 3 is adjusted by real-time controlling the output direct-current voltage of the AC/DC power supply module 8 according to the load impedance, so that high-precision constant-power control or adjustment of the output amplitude is realized. The system outputs a strong electromagnetic field formed at the end of the operation electrode 6, the electromagnetic field and the body tissue of a patient act together to enable polar molecules in cells to oscillate rapidly in a local range to form low-temperature heat energy, so that water molecules are ionized, the separation and solidification of the body tissue are realized, and the purposes of cutting and hemostasis are further achieved. The minimally invasive electrosurgery operation is realized.
The digital minimally invasive high-frequency energy working system has the advantages of high intelligent digitization degree, high control precision, simple operation, safety and reliability, and less thermal injury to tissues around a human body, and can ideally realize the minimally invasive surgery of constant power electrotomy and electrocoagulation on different loads with large impedance range variation. The utility model can be widely applied to the direct-view operation of common surgery, extrathoracic surgery, extracerebral surgery, ENT surgery and maxillofacial surgery, and can also be widely applied to various endoscopic operations including laparoscope, prostatectomy, gastroscope, cystoscope and hysteroscope, in particular to the abdominal duct ligation, the prostate and urethral tumor excision operation which are difficult to enter and implement by a mechanical scalpel, and the operation on diffuse bleeding parts such as liver, spleen, thyroid, mammary gland and lung.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims; the scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. A digital minimally invasive high-frequency energy working system comprises a power supply module, a high-frequency signal generator, a high-frequency power amplifier and an operation electrode; the high-frequency signal generator outputs signals to the operation electrode through an output circuit behind the high-frequency power amplifier; the power module provides power to the high-frequency signal generator, its characterized in that: the system also comprises a digital signal processing circuit and a control circuit which are connected with each other;
a coupling sampling circuit is arranged between the high-frequency power amplifier and the operation electrode and is used for sampling the load and transmitting sampling information to the digital signal processing circuit for processing;
a matching circuit is also arranged between the output circuit of the high-frequency power amplifier and the operation electrode;
the control circuit is respectively and electrically connected with the power supply module, the high-frequency power amplifier, the matching circuit and the digital signal processing circuit; the control circuit selects different matching circuits to regulate the constant power or the output voltage amplitude of the output signal output to the operation electrode according to the processing result of the digital signal processing circuit;
the frequency of the output signal output to the operation electrode by the system reaches more than 2 MHz.
2. The digital minimally invasive high-frequency energy working system according to claim 1, wherein:
the system also comprises a working mode setting and displaying module; the working mode setting and displaying module sets the output energy size and/or the output mode of the surgical electrode through the control circuit and is also used for displaying set parameters and/or the working state of the system;
the amplitude of the output signal frequency of the high-frequency power amplifier is adjustable; the output signal frequency is 2 MHz-5 MHz; the output power of the high-frequency power amplifier reaches 200W, and the output is isolated from the ground.
3. The digital minimally invasive high-frequency energy working system according to claim 1, wherein: the control circuit is a control circuit which can set the output energy and has adjustable duty ratio of output waveform by adopting a singlechip or a DSP;
the coupling sampling circuit is used for accurately sampling the load and outputting the load to the digital signal processing circuit for fast analog-digital signal conversion to obtain an impedance value of the load;
the selection of the matching circuits with different parameters is realized by adopting the switching of the relay, and the on-off of the coil of the relay is controlled by the control circuit.
4. The digital minimally invasive high-frequency energy working system according to claim 3, wherein:
the control circuit controls the relay to select the secondary boost resonance circuit or the tertiary boost resonance circuit to regulate the constant power or the output voltage amplitude of the output signal;
the secondary boost resonance circuit is formed by cascading an inductor L2, a capacitor C3, an inductor L3 and a load capacitor; when the load impedance value obtained by the initial sampling of the coupling sampling circuit to the load is small, the control circuit controls the relays LS1 and LS2 to select the secondary boost resonant circuit so as to ensure constant power output;
the three-stage boosting resonant circuit is formed by cascading an inductor L2, a capacitor C31, an inductor L31, a capacitor C32, an inductor L32 and a load capacitor; when the load impedance value obtained by the initial sampling of the coupling sampling circuit to the load is large, the control circuit controls the relays LS1 and LS2 to select the three-stage boost resonant circuit so as to ensure constant power output.
5. The digital minimally invasive high-frequency energy working system according to claim 1, wherein: the coupling sampling circuit can sample voltage and current data of a load and transmit the data to the digital signal processing circuit; the coupling sampling circuit is a mutual inductor or a resistance sampling device.
6. The digital minimally invasive high-frequency energy working system according to claim 1, wherein: the power supply module is an output voltage adjustable AC/DC power supply module with power factor correction; the control circuit controls the output direct-current voltage of the AC/DC power supply module to regulate the constant power or the output voltage amplitude of the output signal of the high-frequency power amplifier.
7. The digital minimally invasive high-frequency energy working system according to claim 1, wherein: a high-frequency transformer is also arranged between the high-frequency power amplifier and the matching circuit and is used for electrically isolating the input commercial power from the output of the high-frequency power amplifier so as to protect the patient and inhibit high-frequency clutter;
and a driving amplification circuit is connected between the high-frequency signal generator and the high-frequency power amplifier and is used for driving the high-frequency power amplifier.
8. The digital minimally invasive high-frequency energy working system according to claim 2, wherein: the system also comprises an operation electrode identification module, wherein the operation electrode identification module is connected with the operation electrode and is used for automatically identifying and judging the connected operation electrode and automatically setting the maximum output power of the operation electrode;
the system also comprises a negative plate detection and control module, wherein the negative plate detection and control module is connected with the operation electrode and is used for monitoring the adhesion degree of the negative plate and tissues in real time and displaying or alarming;
the negative plate detection and control module is set to display or alarm with the display module or alarm through the sound reminding module in the working mode.
9. The digital minimally invasive high-frequency energy working system according to claim 2, wherein: the system also includes a remote monitoring module; the remote monitoring module is used for remotely controlling and setting and monitoring working parameters and states of the system in real time through a communication network; the remote monitoring module is connected with the working mode setting and displaying module.
10. The digital minimally invasive high-frequency energy working system according to claim 2, wherein: the system also comprises a sound reminding module which is used for setting and displaying the system state of the module and/or various monitoring modules according to the working mode and sending out sounds with different frequencies.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111494003A (en) * | 2020-06-01 | 2020-08-07 | 深圳市艾尔曼医疗电子仪器有限公司 | Digital minimally invasive high-frequency energy working system |
| CN115192186A (en) * | 2022-08-10 | 2022-10-18 | 浙江舒友仪器设备股份有限公司 | Automatic activation output system of high-frequency electrode |
-
2020
- 2020-06-01 CN CN202020979183.7U patent/CN215937635U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111494003A (en) * | 2020-06-01 | 2020-08-07 | 深圳市艾尔曼医疗电子仪器有限公司 | Digital minimally invasive high-frequency energy working system |
| CN111494003B (en) * | 2020-06-01 | 2025-03-11 | 深圳市艾尔曼医疗电子仪器有限公司 | A digital minimally invasive high-frequency energy working system |
| CN115192186A (en) * | 2022-08-10 | 2022-10-18 | 浙江舒友仪器设备股份有限公司 | Automatic activation output system of high-frequency electrode |
| CN115192186B (en) * | 2022-08-10 | 2023-09-15 | 浙江舒友仪器设备股份有限公司 | Automatic high-frequency electrode activation output system |
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