CN212346708U - Electrosurgical system - Google Patents
Electrosurgical system Download PDFInfo
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- CN212346708U CN212346708U CN202020712993.6U CN202020712993U CN212346708U CN 212346708 U CN212346708 U CN 212346708U CN 202020712993 U CN202020712993 U CN 202020712993U CN 212346708 U CN212346708 U CN 212346708U
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Abstract
The utility model discloses an electrosurgery system generates and exports first high frequency signal of telecommunication through high frequency energy controlling means to transmission cable through predetermined impedance will first high frequency signal of telecommunication transmits to operation electrode, operation electrode pair first high frequency signal of telecommunication steps up and handles in order to acquire the second high frequency signal of telecommunication, and operates human tissue. Therefore, energy loss and radiation interference of the electrosurgical system can be reduced, and impedance matching with a human body is more accurate.
Description
Technical Field
The utility model relates to an electrosurgery technical field especially relates to an electrosurgery system and operation electrode.
Background
Electrosurgery is a surgical treatment performed with coagulation and cauterization of high frequency current. The effect on the skin is generally to conduct heat to the tissue or to generate a thermal response in the tissue by means of an electric current. The electrosurgery commonly used in dermal surgery is electrocoagulation and electrosection, which are the same as those used in general surgery, while electrocautery, electro-desiccation and electrocautery are used in dermatology in combination with other treatments.
Electrosurgical systems generally include a high frequency energy control device, a transmission cable, and a surgical electrode. In the prior art, a high-frequency low-voltage signal is generated by a high-frequency energy control device, and is subjected to boosting processing and impedance matching to output a high-frequency high-voltage signal, and then the high-frequency high-voltage signal is transmitted to an operation electrode through a transmission cable, wherein the operation electrode is only used as a function implementation execution unit to control and output corresponding energy.
However, the transmission cable is generally longer, and during an operation, when a high-frequency high-voltage signal reaches an operation electrode through the longer transmission cable, impedance changes, so that the high-frequency high-voltage signal cannot be well matched with the impedance of a human body, and meanwhile, the high-frequency high-voltage signal generates larger energy loss and radiation interference under the condition of unmatched impedance, so that negative effects on the operation are caused.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the embodiments of the present invention is to provide an electrosurgical system and an operation electrode, which can reduce energy loss and radiation interference of the electrosurgical system, so that impedance matching with a human body is more accurate.
In a first aspect, embodiments of the present invention provide an electrosurgical system, the system comprising:
a high-frequency energy control device configured to generate and output a first high-frequency electric signal;
a transmission cable configured to transmit the first high-frequency electric signal through a predetermined impedance; and
a surgical electrode configured to boost the first high-frequency electrical signal to obtain a second high-frequency electrical signal and operate on human tissue.
Preferably, the high frequency energy control device includes:
a control unit configured to generate a control signal;
the high-frequency power amplification unit is controlled by the control signal to generate a corresponding first high-frequency electric signal; and
a first docking unit configured to output the first high-frequency electric signal to the transmission cable.
Preferably, the surgical electrode comprises:
a second docking unit configured to receive the first high-frequency electrical signal from the transmission cable;
an impedance matching boosting unit configured to perform boosting processing on the first high-frequency electric signal to obtain a second high-frequency electric signal; and
a surgical knife head configured to operate on human tissue according to the second high-frequency electrical signal.
Preferably, the high frequency energy control apparatus further comprises:
and the protection unit is configured to detect the working temperature and/or the output power of the high-frequency power amplification unit and perform protection processing in response to the abnormity of the working temperature and/or the output power.
Preferably, the high frequency energy control apparatus further comprises:
the first power supply unit is configured to generate a first power supply signal according to an external input voltage, and the first power supply signal is used for supplying power to the high-frequency power amplification unit; and
a second power supply unit configured to generate a second power supply signal according to an external input voltage, the second power supply signal being used to supply power to the control unit and the protection unit;
wherein the protection unit is further configured to detect a current of the first power supply unit, and perform protection processing in response to a current abnormality of the first power supply unit.
Preferably, the system further comprises:
a neutral electrode configured to connect to human tissue;
the high-frequency energy control apparatus further includes:
a neutral electrode docking unit configured to connect the neutral electrode;
wherein the protection unit is further configured to detect a contact area of the neutral electrode docking unit and human tissue, and perform protection processing in response to the contact area abnormality.
Preferably, the surgical electrode further comprises:
and the functional finger press switch is configured to identify the operation type and the starting or stopping of the operation type to acquire an operation signal, wherein the operation type comprises cutting, coagulation and ablation.
Preferably, the protection unit is further configured to receive the operation signal through the transmission cable.
Wherein the control unit is configured to generate a corresponding control signal in dependence on the operation signal.
Preferably, the control unit is further configured to detect the validity period of the surgical electrode.
In a second aspect, embodiments of the present invention provide an electrosurgical electrode, the electrosurgical electrode including:
a second docking unit configured to receive the first high-frequency electric signal;
an impedance matching boosting unit configured to perform boosting processing on the first high-frequency electric signal to obtain a second high-frequency electric signal;
a surgical knife head configured to operate on human tissue according to the second high-frequency electrical signal.
Preferably, the surgical electrode further comprises:
and the functional finger press switch is configured to identify the operation type and the starting or stopping of the operation type to acquire an operation signal, wherein the operation type comprises cutting, coagulation and ablation.
The technical scheme of the utility model first high frequency signal of telecommunication is generated and exported through high frequency energy controlling means to transmission cable through predetermined impedance will first high frequency signal of telecommunication transmits to operation electrode, operation electrode pair first high frequency signal of telecommunication steps up and handles in order to acquire the second high frequency signal of telecommunication, and operates human tissue. Therefore, energy loss and radiation interference of the electrosurgical system can be reduced, and impedance matching with a human body is more accurate.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of an electrosurgical system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a high-frequency energy control device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a surgical electrode according to an embodiment of the present invention.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Meanwhile, it should be understood that, in the following description, a "circuit" refers to a conductive loop constituted by at least one element or sub-circuit through electrical or electromagnetic connection. When an element or circuit is referred to as being "connected to" another element or element/circuit is referred to as being "connected between" two nodes, it may be directly coupled or connected to the other element or intervening elements may be present, and the connection between the elements may be physical, logical, or a combination thereof. In contrast, when an element is referred to as being "directly coupled" or "directly connected" to another element, it is intended that there are no intervening elements present.
Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Fig. 1 is a schematic structural view of an electrosurgical system according to an embodiment of the present invention, as shown in fig. 1, a high-frequency energy control device 1, a transmission cable 2, an operation electrode 3, and a neutral electrode 4. Wherein the high-frequency energy control apparatus 1 is configured to generate and output a first high-frequency electric signal. The transmission cable 2 is connected to the high-frequency power control device 1 and the surgical electrode 3, and is configured to transmit the first high-frequency electric signal to the surgical electrode 3 through a predetermined impedance. The operation electrode 3 is configured to perform a voltage boosting process on the first high-frequency electric signal to obtain a second high-frequency electric signal, and to operate on a human tissue. The neutral electrode 4 is used to connect the human tissue and the high frequency energy control device 1 to form a loop.
In this embodiment, the first high-frequency electrical signal is a high-frequency low-voltage signal.
In this embodiment, the second high-frequency electrical signal is a high-frequency high-voltage signal.
Further, the voltage value of the second high-frequency electric signal may be several times that of the first high-frequency electric signal.
In the present embodiment, the transmission cable 2 is connected between the high-frequency energy control device 1 and the surgical electrode 3, and is configured to transmit the first high-frequency electric signal through a predetermined impedance.
In the present embodiment, the surgical electrode 3 is configured to perform a voltage boosting process on the first high-frequency electric signal to obtain a second high-frequency electric signal, and to operate on human tissue.
In a specific implementation manner, the frequency range of the first high-frequency electric signal is 20kHz to 5MHz, the voltage range is 100V to 250V, the transmission cable 2 is a 50 Ω matching cable, and the transformer turns ratio of the surgical electrode 3 is 1: 4, the voltage of the first high-frequency electric signal can be amplified by 4 times and the impedance can be amplified by 16 times, and the voltage of the second high-frequency electric signal can be further adjusted to 400V to 1000V and the impedance can be further adjusted to 800 omega. The impedance range of the human body is approximately 100-2000 omega, and the matching impedance is 800 omega, so that the electrosurgical system has a good effect on most of tissue cutting and blood coagulation.
The technical scheme of the utility model first high frequency signal of telecommunication is generated and exported through high frequency energy controlling means to transmission cable through predetermined impedance will first high frequency signal of telecommunication transmits to operation electrode, operation electrode pair first high frequency signal of telecommunication steps up and handles in order to acquire the second high frequency signal of telecommunication, and operates human tissue. Therefore, energy loss and radiation interference of the electrosurgical system can be reduced, and impedance matching with a human body is more accurate.
Further, fig. 2 is a schematic structural diagram of a high-frequency energy control device according to an embodiment of the present invention. As shown in fig. 2, the high-frequency energy control device 1 of the embodiment of the present invention includes a control unit 11, a high-frequency power amplifier unit 12, a first docking unit 13, a protection unit 14, a first power supply unit 15, a second power supply unit 16, a filtering unit 17, a neutral electrode docking unit 18, and a human-computer interaction unit 19.
In the present embodiment, the filtering unit 17 is connected to the power supply, and is configured to receive the external input voltage Vac of the power supply and filter the external input voltage Vac, so that the high frequency power control apparatus meets EMC (Electromagnetic Compatibility) requirements. EMC refers to the ability of a device or system to operate satisfactorily in its electromagnetic environment without producing intolerable electromagnetic disturbance to any device in its environment. EMC includes two requirements: on one hand, the electromagnetic disturbance generated to the environment in the normal operation process of the equipment cannot exceed a certain limit value; on the other hand, the device has a certain degree of immunity to electromagnetic disturbance existing in the environment, namely electromagnetic sensitivity.
Preferably, the power supply may be 220V or 380V ac mains.
Optionally, the high frequency power control device further includes a power switch (not shown in the figure) connected between the power supply and the filtering unit 17 for controlling the high frequency power control device to start or stop operating.
In the present embodiment, the first power supply unit 15 is configured to generate a first power supply signal V1 according to the external input voltage Vac, and the first power supply signal V1 is used for supplying power to the high frequency power amplifier unit 12.
In the present embodiment, the high frequency power amplifier unit 12 is configured to generate a corresponding first high frequency electrical signal V1 according to the control signal.
In an alternative implementation, the high frequency power amplifier unit may include an adjustable DC/DC converter, an inverter, and a filter circuit. The adjustable DC/DC converter is used for converting the first power supply voltage into a specified direct current voltage according to the control signal and outputting the specified direct current voltage to the inverter. The inverter chops the direct-current voltage into high-frequency alternating-current square-wave voltages with different frequencies and different pulse widths. The filter circuit converts the high-frequency alternating-current square wave voltage into a first high-frequency electric signal and outputs the first high-frequency electric signal.
In this embodiment, the first docking unit 13 is connected to an output terminal of the high frequency power amplifier unit 12, and configured to output the first high frequency electrical signal V1.
Further, the first docking unit 13 is connected with the transmission cable 2, and is configured to transmit the first high-frequency electrical signal V1 to the transmission cable 2.
In the present embodiment, the neutral electrode docking unit 18 connects the neutral electrode 4 and the high-frequency power amplification unit 12 so that a loop is formed.
In the present embodiment, the second power supply unit 16 is configured to generate a second power supply signal V2 according to the external input voltage Vac, wherein the second power supply signal is used for supplying power to the control unit 11 and the protection unit 14.
In the present embodiment, the protection unit 14 is used for detecting an abnormal condition of the electrosurgical system and performing protection processing in response to an abnormal operation of the electrosurgical system.
Further, the protection unit 14 may perform overcurrent protection on the first power supply unit 15. Specifically, the protection unit 14 obtains the working current Is of the first power supply unit 15, detects whether the working current Is exceeds a predetermined threshold, and controls the first power supply unit 15 to stop working in response to the working current Is exceeding the predetermined threshold.
Further, the protection unit 14 may perform overheat protection on the high-frequency power amplifier unit 12. Specifically, the protection unit 14 detects the working temperature T of the high-frequency power amplifier unit 12 in real time, detects whether the working temperature T exceeds a predetermined threshold, and generates a protection signal Vd to control the high-frequency power amplifier unit 12 to stop working in response to the working temperature T exceeding the predetermined threshold.
Further, the protection unit 14 may perform energy out-of-tolerance protection on the high frequency power amplifier unit 12. Specifically, the protection unit 14 detects the output power P of the high-frequency power amplifier unit 12 in real time, detects whether the power P exceeds a predetermined threshold, and generates a protection signal Vd to control the high-frequency power amplifier unit 12 to stop working in response to the power P exceeding the predetermined threshold. Optionally, the protection unit 14 calculates the output power by obtaining the output current and the output voltage of the high frequency power amplifier unit 12.
Further, the protection unit 14 may alarm protect the contact area of the neutral electrode 4. Specifically, the neutral electrode 4 acquires a contact area detection signal Va in real time and sends the contact area detection signal Va to the protection unit 14 through the neutral electrode docking unit 18, the protection unit 14 detects whether the contact area detection signal Va exceeds a predetermined threshold value in real time, and in response to the fact that the contact area detection signal Va exceeds the predetermined threshold value, a protection signal is generated to control the human-computer interaction unit 19 to send out an alarm signal.
In the present embodiment, the human-computer interaction unit 19 includes a touch screen for displaying data and receiving an input signal and a speaker. The loudspeaker is used for outputting various prompt sounds in the operation process, for example, the prompt that the neutral electrode is not connected is given, so that the whole operation is safer.
Further, the user may select the type of operation, including cutting, coagulation, ablation, etc., via a touch screen or other input device (e.g., keyboard, etc.). The human-computer interaction unit 19 sends the operation type to the control unit 11, and the control unit 11 generates a corresponding control signal Vc according to the operation type to control the high-frequency power amplifier unit 12 to output a corresponding first high-frequency electrical signal V1.
Fig. 3 is a schematic structural view of a surgical electrode according to an embodiment of the present invention. As shown in fig. 3, the surgical electrode includes a second docking unit 31, an impedance matching boosting unit 32, a functional finger-press switch 33, and a surgical tool bit 34. Wherein the second docking unit 31 is configured to receive the first high frequency electrical signal. The impedance matching boosting unit 32 is configured to perform boosting processing on the first high-frequency electric signal to obtain a second high-frequency electric signal. Surgical blade 34 is configured to operate on the body tissue in accordance with the second high frequency electrical signal. The functional finger-pressure switch 33 is configured to recognize the operation type including cutting, coagulation and ablation and the start or stop thereof to acquire the operation signal.
In the present embodiment, the first docking unit 13 is connected to one end of the transmission cable 2, and the second docking unit 31 is connected to the other end of the transmission cable 2, and is configured to receive the first high-frequency electrical signal V1 through the transmission cable 2.
In the present embodiment, the impedance matching boosting unit 32 is configured to perform a boosting process on the first high-frequency electrical signal V1 to complete impedance matching.
Optionally, the impedance matching boosting unit 32 is a transformer.
In a specific implementation manner, the voltage range of the first high-frequency electrical signal is 100V to 250V, the transmission cable 2 is a 50 Ω matching cable, and the transformer turns ratio of the surgical electrode 3 is 1: 4, the voltage of the first high-frequency electric signal can be amplified by 4 times and the impedance can be amplified by 16 times, and the voltage of the second high-frequency electric signal can be further adjusted to 400V to 1000V and the impedance can be further adjusted to 800 omega. The impedance range of the human body is approximately 100-2000 omega, and the matching impedance is 800 omega, so that the electrosurgical system has a good effect on most of tissue cutting and blood coagulation.
Thereby, boosting and impedance matching can be accomplished by the impedance matching boosting unit 32.
In the present embodiment, surgical blade 34 is configured to operate on human tissue.
Further, the scalpel head 34 is provided with a coating to prevent the scalpel head from adhering to human tissue during surgery.
In the present embodiment, the finger-press function switch 33 recognizes the operation type including cutting, coagulation and ablation and the start or stop thereof to acquire the operation signal. Specifically, the user may select to start or stop the corresponding operation function by pressing a key of the function switch 33, and the function switch 33 obtains the corresponding operation signal.
Further, the function finger-pressing switch 33 sends the acquired operation signal to the protection unit 14 through the transmission cable, the protection unit 14 identifies the corresponding operation function and sends the corresponding operation function to the control unit 11, and the control unit generates a corresponding control signal to control the high-frequency power amplification unit 12 to output the corresponding first high-frequency signal.
Further, the operation electrode 3 further comprises various sensors (such as a temperature sensor and the like), various parameters of human tissues in the operation process are obtained through the sensors and are sent to the control unit 11 through a transmission cable, and the parameters are processed and then displayed through the human-computer interaction unit 19 by the control unit 11, so that a user can obtain various conditions in the operation process in real time, and the success rate and the safety of the operation are improved.
Preferably, the surgical electrode 3 is a disposable surgical electrode to avoid cross-contamination during surgery.
In particular, by providing a destruction module in the surgical electrode 3, the destruction device can cause a high frequency signal to be sent from the high frequency energy control device 1 to the surgical electrode 3 after the surgical electrode 3 has been connected to the high frequency energy control device for the first time. After the operation electrode 3 is detached, the destroying device cuts off the access, and if the operation electrode 3 is installed again, the operation electrode 3 can not be connected. Thereby making the surgical electrode usable only once.
Further, the control unit 11 is also configured to detect the expiration date of the operation electrode 3, and send a prompt to the user through the human-computer interaction unit after detecting that the operation electrode 3 has been used. Alternatively, the control unit 11 may detect the expiration date by detecting a destruction device in the surgical electrode.
The embodiment of the utility model provides a generate and export first high frequency signal of telecommunication through high frequency energy controlling means to transmission cable through predetermined impedance will first high frequency signal of telecommunication transmits to operation electrode, operation electrode pair first high frequency signal of telecommunication steps up and handles in order to acquire the second high frequency signal of telecommunication, and operates human tissue. Therefore, energy loss and radiation interference of the electrosurgical system can be reduced, and impedance matching with a human body is more accurate.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. An electrosurgical system, characterized in that the system comprises:
a high-frequency energy control device configured to generate and output a first high-frequency electric signal;
a transmission cable configured to transmit the first high-frequency electric signal through a predetermined impedance; and
a surgical electrode configured to boost the first high-frequency electrical signal to obtain a second high-frequency electrical signal and operate on human tissue.
2. The system of claim 1, wherein the high frequency energy control means comprises:
a control unit configured to generate a control signal;
the high-frequency power amplification unit is controlled by the control signal to generate a corresponding first high-frequency electric signal; and
a first docking unit configured to output the first high-frequency electric signal to the transmission cable.
3. The system of claim 2, wherein the surgical electrode comprises:
a second docking unit configured to receive the first high-frequency electrical signal from the transmission cable;
an impedance matching boosting unit configured to perform boosting processing on the first high-frequency electric signal to obtain a second high-frequency electric signal; and
a surgical knife head configured to operate on human tissue according to the second high-frequency electrical signal.
4. The system of claim 3, wherein the high frequency energy control means further comprises:
and the protection unit is configured to detect the working temperature and/or the output power of the high-frequency power amplification unit and perform protection processing in response to the abnormity of the working temperature and/or the output power.
5. The system of claim 4, wherein the high frequency energy control means further comprises:
the first power supply unit is configured to generate a first power supply signal according to an external input voltage, and the first power supply signal is used for supplying power to the high-frequency power amplification unit; and
a second power supply unit configured to generate a second power supply signal according to an external input voltage, the second power supply signal being used to supply power to the control unit and the protection unit;
wherein the protection unit is further configured to detect a current of the first power supply unit, and perform protection processing in response to a current abnormality of the first power supply unit.
6. The system of claim 4, further comprising:
a neutral electrode configured to connect to human tissue;
the high-frequency energy control apparatus further includes:
a neutral electrode docking unit configured to connect the neutral electrode;
wherein the protection unit is further configured to detect a contact area of the neutral electrode docking unit and human tissue, and perform protection processing in response to the contact area abnormality.
7. The system of claim 4, wherein the surgical electrode further comprises:
and the functional finger press switch is configured to identify the operation type and the starting or stopping of the operation type to acquire an operation signal, wherein the operation type comprises cutting, coagulation and ablation.
8. The system of claim 7, wherein the protection unit is further configured to receive the operation signal over the transmission cable;
wherein the control unit is configured to generate a corresponding control signal in dependence on the operation signal.
9. The system of claim 2, wherein the control unit is further configured to detect an expiration date of the surgical electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020712993.6U CN212346708U (en) | 2020-04-30 | 2020-04-30 | Electrosurgical system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020712993.6U CN212346708U (en) | 2020-04-30 | 2020-04-30 | Electrosurgical system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437031A (en) * | 2020-04-30 | 2020-07-24 | 湖南菁益医疗科技有限公司 | Electrosurgical system and surgical electrode |
| CN113081229A (en) * | 2021-04-06 | 2021-07-09 | 湖南菁益医疗科技有限公司 | Novel neutral electrode contact quality detection system and method |
-
2020
- 2020-04-30 CN CN202020712993.6U patent/CN212346708U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437031A (en) * | 2020-04-30 | 2020-07-24 | 湖南菁益医疗科技有限公司 | Electrosurgical system and surgical electrode |
| CN113081229A (en) * | 2021-04-06 | 2021-07-09 | 湖南菁益医疗科技有限公司 | Novel neutral electrode contact quality detection system and method |
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