Electromagnetic knife operation system

Abstract

The invention provides an electromagnetic knife operation system which comprises a main machine, a knife head assembly and a foot switch, and a power module, a high-frequency electromagnetic field generation module, a control processing module and a signal receiving and transmitting module are arranged in a shell of the main machine; the high-frequency electromagnetic field generation module is used for generating and amplifying high-frequency alternating electromagnetic field energy meeting operation requirements, receiving a control signal sent by the control processing module and controlling and adjusting electromagnetic field intensity and frequency; the control processing module is used for receiving a control instruction and sending a control signal to the high-frequency electromagnetic field generation module and the signal receiving and transmitting module according to the control instruction and a preset program; the signal receiving and transmitting module is used for receiving a control signal of external equipment, transmitting the control signal to the control processing module and transmitting a control instruction of the control processing module to the tool bit assembly. The problems that an existing surgical knife is large in tissue damage, poor in hemostatic effect, complex in operation, large in risk of heat damage to surrounding tissues and the like are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electromagnetic knives, in particular to a surgical system of an electromagnetic knife. BACKGROUND

[0002] As an indispensable tool in surgical operations, the development of surgical knives has witnessed the continuous progress of medical technology. Traditional surgical knives are generally composed of a blade and a handle. The blade is usually made of pure titanium, titanium alloy, stainless steel or carbon steel, and is usually disposable. During surgical operations, the blade edge is used to cut the skin and muscle, the blade tip is used to clean blood vessels and nerves, and the handle is used for blunt dissection. With a variety of different materials and specifications, doctors can choose the appropriate model according to the size of the wound, making it widely used in most surgical operations. However, traditional surgical knives have many limitations. From the perspective of durability, it is difficult to manufacture a product that is both durable and sharp due to the limitations of existing material technology, which leads to a large consumption of surgical knives and the need to frequently replace the blade and handle during surgical procedures. In terms of functionality, traditional surgical knives only have simple cutting functions and lack hemostatic ability. The incision after cutting bleeds actively, so it is generally only suitable for dissecting tissues with sparse and clear blood vessel distribution, such as skin and muscle tissue, or for peeling adhesive tissue. It is not suitable for complex situations such as internal organ surgery.

[0003] In order to overcome the drawbacks of traditional surgical knives, expand the field of surgical operations, and improve surgical efficiency and success rate, scientists have developed electric surgical knives using electric current and the heat generated by its conversion. Common electric surgical knives include high-frequency electric knives, ultrasonic knives and plasma knives.

[0004] High-frequency electrotome has been used in clinic since 1920, and has a history of more than 100 years. It generates high-frequency high-voltage current through the tip of the active electrode, which contacts the body to heat the tissue, separate and coagulate the tissue, and achieve the purpose of cutting and hemostasis. With the development of technology, it has experienced four generations of changes from spark plug discharge, high-power electron tube, high-power transistor, and high-power MOS tube, and combined with computer technology, it has realized the automatic adjustment of power waveform, voltage, and current under various functions, as well as the detection, programmed control, and fault detection indication of various safety indicators, improving the safety and reliability of the equipment and simplifying the operation of the doctor. High-frequency electrotome has two main working modes: monopolar and bipolar. In monopolar mode, the current passes through the active lead and electrode through the patient, and then returns to the generator of the high-frequency electrotome through the patient plate and its lead. By concentrating high-current high-frequency current, it destroys the tissue at the contact point of the active electrode tip, achieving cutting and coagulation. Bipolar electrocoagulation provides high-frequency electrical energy to the body tissue through the two tips of the bipolar forceps, causing the blood vessels between the two ends of the forceps to dehydrate and coagulate, achieving the purpose of hemostasis. Its action range is limited to the two ends of the forceps, and the damage degree and influence range of the body tissue are much smaller than the monopolar mode, which is suitable for small blood vessels (diameter <4mm) and tubal occlusion, and is commonly used in fine surgery such as brain surgery, microsurgery, otolaryngology, gynecology and obstetrics, and hand surgery.

[0005] Although high-frequency electrotome has the advantages of fast cutting speed, good hemostatic effect, simple operation, safety and convenience, it can shorten the operation time, reduce the amount of blood loss and blood transfusion of patients, reduce complications and operation cost, and has a wide range of surgical applications, but it also has some problems, such as the current passing through the human body may stimulate blood vessels and nerves, and the use of patient plate in monopolar mode may cause patient burns if the plate contact is poor or the current distribution is uneven.

[0006] Ultrasonic knife is a device that uses an ultrasonic frequency generator to act on the knife head to generate ultrasonic energy and mechanical vibration, converting electrical energy into mechanical energy to vaporize the liquid in the tissue and close the blood vessels, thereby achieving the effect of cutting and coagulation. Its advantages are precise control of cutting and coagulation, no smoke, less scab, clear surgical field, and easy dissection. However, the cost of ultrasonic knife equipment is high, the price of the knife head is expensive, which increases the medical expenses burden of patients, and when dealing with hard tissue, it may require high power, which still has a certain degree of risk of heat damage to the surrounding tissue.

[0007] The plasma knife is to generate plasma state by exciting sodium chloride molecules in blood, mucous membrane and soft tissue in human body through multi-pole knife head by specific waveform electric energy, to directly break the molecular bond of tissue by high-speed charged particles in plasma, to vaporize and decompose tissue protein into low molecular weight gas, to realize vaporization, cutting, punching, ablation, shrinkage, peeling, hemostasis and repair of tissue and other functions. However, the plasma knife also faces some challenges, for example, the working principle is relatively complex, the equipment maintenance and operation requirements are high, it is difficult to popularize in some primary medical institutions, and the control of the depth and range of the effect on the tissue during the operation requires high technical level, and if the operation is not proper, unnecessary damage to the surrounding normal tissue may be caused.

[0008] In summary, the existing surgical knives have problems such as large damage to tissue, poor hemostatic effect, complex operation, high risk of thermal damage to surrounding tissue, etc. during the operation, and it is difficult to meet the increasingly refined and minimally invasive surgical requirements. Therefore, it is of great practical significance to develop a new type of surgical knife and surgical system which can overcome the above-mentioned defects and has higher safety, precision and effectiveness. SUMMARY

[0009] The purpose of the present application is to provide an electromagnetic knife surgical system to solve the problems of large damage to tissue, poor hemostatic effect, complex operation, high risk of thermal damage to surrounding tissue, etc. of the existing surgical knives, and to realize safer, more precise and effective surgical operation.

[0010] The present application is implemented as follows:

[0011] An electromagnetic knife surgical system, comprising a host computer, a knife head assembly and a foot switch, the host computer comprising a shell, a power module, a high-frequency electromagnetic field generating module, a control processing module and a signal receiving and transmission module are arranged in the shell, the power module, the high-frequency electromagnetic field generating module and the signal receiving and transmission module are electrically connected with the control processing module, the high-frequency electromagnetic field generating module, the knife head assembly and the foot switch are electrically connected with the signal receiving and transmission module; the power module is used to convert the external input alternating current into direct current required by each module of the system, and to supply power to each module; the high-frequency electromagnetic field generating module comprises a high-frequency oscillation circuit and a power amplification circuit, and is used to generate and amplify high-frequency alternating electromagnetic field energy meeting the surgical requirements; the high-frequency electromagnetic field generating module receives the control signal sent by the control processing module to control and adjust the electromagnetic field intensity and frequency; the control processing module is used to receive control instructions, and to send control signals to the high-frequency electromagnetic field generating module and the signal receiving and transmission module according to the control instructions and preset programs to control the working state of each module; the signal receiving and transmission module is used to receive the control signal of the external device and transmit it to the control processing module, and to transmit the control instructions of the control processing module to the knife head assembly.

[0012] Further, the shell is also provided with a display driving module, the display driving module is electrically connected with the control processing module, the display driving module includes a display screen arranged on the shell, the display driving module is used for receiving system running parameters, working state data and fault information data sent by the control processing module, and converting the system running parameters, the working state data and the fault information data into visual images or characters presented on the display screen.

[0013] Further, the display driving module further includes a control panel, a plurality of control keys are arranged on the control panel, the control keys include a mode key, a switching key, a power increasing and decreasing key, a setting key, a parameter increasing and decreasing key, a forward selection key and a backward selection key; the mode key is used for selecting a working mode of the electromagnetic knife, including a cutting mode and a coagulation mode, different modes correspond to different high-frequency alternating electromagnetic field intensity and frequency parameter combinations; the switching key is used for controlling the electromagnetic knife to switch between the cutting mode and the coagulation mode; the power increasing and decreasing key is used for adjusting the output power of the electromagnetic knife; the setting key is used for entering a system setting mode, in the setting mode, each parameter of the system can be set through the parameter increasing and decreasing key, including but not limited to an electromagnetic field intensity range, a frequency range and a working time limit; the parameter increasing and decreasing key is used for increasing or decreasing the selected parameter in the setting mode; in the setting mode, one of the mode key or the setting key has a confirmation function, and the other has a quit function; the forward selection key and the backward selection key are used for progressively switching and selecting between a plurality of menu levels or a plurality of parameter setting items.

[0014] Further, the shell is also provided with a heat dissipation module, the heat dissipation module is electrically connected with the control processing module, the heat dissipation module includes a temperature sensor for detecting the temperature of each module and a heat dissipation fan with a variable frequency motor.

[0015] Further, an air inlet is arranged on the bottom wall or the side wall of the shell, dustproof cotton is arranged on the inner side of the air inlet, an air outlet is arranged on the rear wall of the shell, and the exhaust end of the heat dissipation fan is arranged corresponding to the air outlet; a plurality of anti-skid support pads are arranged on the bottom wall of the shell, the anti-skid support pads support the shell to a certain height, so that the bottom of the shell has a certain distance from the supporting surface.

[0016] Further, the knife head assembly includes an electrode knife head, an output adapter and an energy transmission cable, one end of the output adapter is detachably connected with the energy transmission cable, and the other end is detachably connected with the electrode knife head; the signal receiving and transmitting module includes an output connection port and an input connection port, the energy transmission cable is connected with the output connection port through plug-in connection, and the foot switch is connected with the input connection port.

[0017] Further, the electrode cutter head comprises a single-stage electrode cutter head, and the electrode structure of the single-stage electrode cutter head comprises a spherical electrode, a ring electrode, a knife electrode, a needle electrode, a double-blade electrode, a sickle electrode, and an insulating coating electrode.

[0018] The electrode head of the spherical electrode is in a spherical or semispherical curved surface structure, which is used to increase the current action area and realize uniform coagulation hemostasis of a large-area tissue.

[0019] The electrode of the ring electrode is in a closed ring structure, which is used to form a ring-shaped current path and realize ring-shaped cutting or resection of a tissue.

[0020] The electrode of the knife electrode is in a thin sheet-shaped blade structure, which is used to concentrate the current density and realize rapid cutting and separation of a fine tissue.

[0021] The electrode of the needle electrode is in an elongated needle structure, which is used to highly concentrate the current at the needle tip and realize accurate puncture and minimally invasive operation of a deep tissue.

[0022] The electrode of the double-blade electrode is provided with cutting blade structures on both sides, which are used to simultaneously perform bidirectional cutting and improve the efficiency of large-area tissue separation.

[0023] The electrode of the sickle electrode is in a sickle-shaped curved structure, which is used to adapt to the arc-shaped cutting demand of a narrow space or a special anatomical site.

[0024] The electrode surface of the insulating coating electrode is at least partially covered with an insulating material layer, and only the electrode tip or specific region is exposed, which is used to accurately control the current action range and reduce thermal damage to the surrounding normal tissue.

[0025] Further, the rear side of the electrode structure of the single-stage electrode cutter head is provided with a bending and shaping connecting part, which is used for angle adjustment and shaping of the electrode structure. The bending and shaping connecting part comprises an elastic metal tube body and an insulating layer wrapped on the outer surface of the elastic metal tube body. The elastic metal tube body is made of a shape memory alloy or a plastic metal material, which can be plastically deformed under the action of an external bending force and keep the shape after bending. The insulating layer is made of a medical-grade insulating material and has a thickness of 0.1-0.5 mm.

[0026] Further, the electrode knife head further comprises a double-stage electrode knife head, an electrode structure form of the double-stage electrode knife head comprises a straight double-pole forceps electrode and a gun-type double-pole forceps electrode, both electrode tips of the double-stage electrode knife head are made of conductive metal material, and the distance between the two electrode tips is 0.2-1 mm; the output connection port comprises a single-pole electrode knife head connection port and a double-stage electrode knife head connection port, the energy transmission cable electrically connected with the single-pole electrode knife head is connected to the single-pole electrode knife head connection port through plug-in connection, and the energy transmission cable electrically connected with the double-stage electrode knife head is connected to the double-stage electrode knife head connection port through plug-in connection.

[0027] Further, the foot switch comprises a mounting seat and a connecting cable, one end of the connecting cable is connected to the input connection port through plug-in connection, and the other end is connected to the mounting seat; the mounting seat is provided with a left mounting groove and a right mounting groove, a left pedal and a right pedal are respectively mounted in the left mounting groove and the right mounting groove, the left pedal and the right pedal are movably connected to the mounting seat through elastic return mechanisms, and the bottom of each of the left pedal and the right pedal is provided with a micro switch, the micro switch is electrically connected to the control processing module through the connecting cable, and is used to convert the stepping action of the pedal into an electrical signal and transmit the electrical signal to the control processing module; wherein:

[0028] The left pedal and the right pedal correspond to two different working modes of the electromagnetic knife respectively, the working modes comprise a cutting mode and a coagulation mode, when the left pedal is stepped down, the micro switch at the bottom thereof is closed to send a cutting mode starting signal to the control processing module, after receiving the signal, the control processing module controls the high-frequency electromagnetic field generating module to output high-frequency alternating electromagnetic field energy suitable for cutting, when the right pedal is stepped down, the micro switch at the bottom thereof is closed to send a coagulation mode starting signal to the control processing module, after receiving the signal, the control processing module controls the high-frequency electromagnetic field generating module to output high-frequency alternating electromagnetic field energy suitable for coagulation.

[0029] The surface color of the left pedal is blue, and the surface color of the right pedal is yellow, the blue and the yellow are both medical-grade safety colors with high contrast, and the surface colors of the left pedal and the right pedal are realized through medical-grade plastic injection molding or surface coating process, the coating thickness is 0.05-0.2 mm, and the left pedal and the right pedal have good wear resistance, corrosion resistance and ultraviolet resistance, so that the color does not fade or fall off in the long-term use process;

[0030] The upper surfaces of the left pedal and the right pedal are both provided with anti-skid lines, the anti-skid lines are raised stripes or dot matrix raised, the height of the raised is 0.5-2 mm, and the anti-skid lines are used to increase the friction between the soles of the doctors and the surfaces of the pedals, so as to prevent the pedals from being misoperated or inaccurately operated due to the slipping of the soles in the operation process;

[0031] The stop button is arranged between the left mounting groove and the right mounting groove on the mounting seat, and is electrically connected with the control processing module through a connecting cable.

[0032] Compared with the prior art, the application has the beneficial effects that: the application greatly reduces the thermal damage range by virtue of precise focusing regulation of electromagnetic field energy and diversified special electrode design, significantly improves the operation efficiency in blood vessel / neural stripping and tissue incision operation. At the same time, the system does not need a negative plate, avoids current passing through the human body, and guarantees patient safety from the root. In addition, the detachable knife head assembly and the setting of the bending and shaping connecting part further improve the operation flexibility, so that it can adapt to deep and narrow part surgery, realize more fine and minimally invasive surgical effect, and effectively solve the problems of large damage and low efficiency of traditional surgical knives. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a three-dimensional structural schematic diagram of the application;

[0034] Figure 2 is an electric control structure block diagram of the application;

[0035] Figure 3 is a three-dimensional structural schematic diagram of the main machine from the front view at the downward angle;

[0036] Figure 4 is a three-dimensional structural schematic diagram of the main machine from the rear view at the upward angle;

[0037] Figure 5 is an electric control structure block diagram of the knife head assembly of the application;

[0038] Figure 6 is an electric control structure block diagram of the foot switch of the application.

[0039] In the figure: 1, main machine; 11, shell; 12, display screen; 13, control panel; 14, control key; 15, air inlet; 16, air outlet; 17, output connection port; 18, input connection port; 19, anti-skid support pad; 2, knife head assembly; 21, electrode knife head; 22, output adapter; 23, energy transmission cable; 24, bending and shaping connecting part; 3, foot switch; 31, mounting seat; 32, connecting cable; 33, left pedal; 34, right pedal; 35, stop button. DETAILED DESCRIPTION

[0040] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, it can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] Further description will be made below in combination with the drawings and specific embodiments:

[0042] As shown in Figure 1 and Figure 2 An electromagnetic knife surgical system, comprising a host computer 1, a knife head assembly 2 and a foot switch 3, the host computer 1 comprises a shell 11, the shell 11 is provided with a power supply module, a high-frequency electromagnetic field generating module, a control processing module, a signal receiving and transmitting module, a display driving module and a heat dissipation module, the power supply module, the high-frequency electromagnetic field generating module, the signal receiving and transmitting module, the display driving module and the heat dissipation module are electrically connected with the control processing module, the high-frequency electromagnetic field generating module, the knife head assembly 2 and the foot switch 3 are electrically connected with the signal receiving and transmitting module.

[0043] The power supply module is the power source of the system, which is connected with the power socket through the power line. The power supply module is used for converting the external input alternating current into direct current required by each module of the system, and supplying power for each module. It has overvoltage, overcurrent and leakage protection functions, which can quickly cut off the circuit when the power supply is abnormal, to ensure the safety of the equipment and the user. The high-frequency electromagnetic field generating module is the core functional module of the host computer 1, which includes a high-frequency oscillation circuit and a power amplification circuit, and is used for generating and amplifying high-frequency alternating electromagnetic field energy meeting the operation requirements. The high-frequency electromagnetic field generating module receives the control signal sent by the control processing module, controls and adjusts the electromagnetic field intensity and frequency, and can realize precise control of the electromagnetic field intensity and frequency to adapt to different operation scenes and tissue cutting and hemostasis requirements. The control processing module is the control center of the host computer 1, which has an MCU chip. The control processing module is used for receiving control instructions, and sending control signals to the high-frequency electromagnetic field generating module and the signal receiving and transmitting module according to the control instructions and preset programs, to regulate the working state of each module. At the same time, the control processing module also monitors the system running state in real time, collects the working parameters and fault information of each module, to ensure the stable operation of the host computer. The signal receiving and transmitting module interacts with the foot switch 3 and other external devices, and is used for receiving the control signals of the foot switch 3 and other external devices and transmitting them to the control processing module, in addition, the signal receiving and transmitting module is also used for transmitting the control instructions of the control processing module to the knife head assembly 2.

[0044] AsFigure 2 and Figure 3 As shown in FIGS. 1, 2 and 3, the display driving module includes a display screen 12 and a control panel 13 arranged on the shell 11, and is used to receive the system running parameters, working state data and fault information data sent by the control processing module, and convert them into visual images or texts presented on the display screen 12. The doctor can intuitively understand the working conditions of the electromagnetic knife, such as the current electromagnetic field intensity, frequency, working mode, etc., through the display screen 12, which is convenient for operation and adjustment. The control panel 13 is provided with a plurality of control buttons 14, including mode buttons, switching buttons, power increase / decrease buttons, setting buttons, parameter increase / decrease buttons, forward selection buttons and backward selection buttons. The mode buttons are used to select the working mode of the electromagnetic knife, including cutting mode and coagulation mode, and different modes correspond to different combinations of high-frequency alternating electromagnetic field intensity and frequency parameters. The switching buttons are used to control the electromagnetic knife to switch between the cutting mode and the coagulation mode. The power increase / decrease buttons are used to adjust the output power of the electromagnetic knife; the setting buttons are used to enter the system setting mode, and in the setting mode, the parameters of the system can be set through the parameter increase / decrease buttons, including but not limited to electromagnetic field intensity range, frequency range and working time limit. The parameter increase / decrease buttons are used to increase or decrease the selected parameters in the setting mode. In the setting mode, one of the mode buttons or the setting buttons has a confirmation function, and the other has a quit function. The forward selection buttons and the backward selection buttons are used to select and switch between multiple menu levels or multiple parameter setting items in a progressive manner.

[0045] As shown in FIGS. 1, 2 and 3, the display driving module includes a display screen 12 and a control panel 13 arranged on the shell 11, and is used to receive the system running parameters, working state data and fault information data sent by the control processing module, and convert them into visual images or texts presented on the display screen 12. The doctor can intuitively understand the working conditions of the electromagnetic knife, such as the current electromagnetic field intensity, frequency, working mode, etc., through the display screen 12, which is convenient for operation and adjustment. The control panel 13 is provided with a plurality of control buttons 14, including mode buttons, switching buttons, power increase / decrease buttons, setting buttons, parameter increase / decrease buttons, forward selection buttons and backward selection buttons. The mode buttons are used to select the working mode of the electromagnetic knife, including cutting mode and coagulation mode, and different modes correspond to different combinations of high-frequency alternating electromagnetic field intensity and frequency parameters. The switching buttons are used to control the electromagnetic knife to switch between the cutting mode and the coagulation mode. The power increase / decrease buttons are used to adjust the output power of the electromagnetic knife; the setting buttons are used to enter the system setting mode, and in the setting mode, the parameters of the system can be set through the parameter increase / decrease buttons, including but not limited to electromagnetic field intensity range, frequency range and working time limit. The parameter increase / decrease buttons are used to increase or decrease the selected parameters in the setting mode. In the setting mode, one of the mode buttons or the setting buttons has a confirmation function, and the other has a quit function. The forward selection buttons and the backward selection buttons are used to select and switch between multiple menu levels or multiple parameter setting items in a progressive manner. Figure 2 and Figure 4 As shown in FIGS. 1, 2 and 3, the display driving module includes a display screen 12 and a control panel 13 arranged on the shell 11, and is used to receive the system running parameters, working state data and fault information data sent by the control processing module, and convert them into visual images or texts presented on the display screen 12. The doctor can intuitively understand the working conditions of the electromagnetic knife, such as the current electromagnetic field intensity, frequency, working mode, etc., through the display screen 12, which is convenient for operation and adjustment. The control panel 13 is provided with a plurality of control buttons 14, including mode buttons, switching buttons, power increase / decrease buttons, setting buttons, parameter increase / decrease buttons, forward selection buttons and backward selection buttons. The mode buttons are used to select the working mode of the electromagnetic knife, including cutting mode and coagulation mode, and different modes correspond to different combinations of high-frequency alternating electromagnetic field intensity and frequency parameters. The switching buttons are used to control the electromagnetic knife to switch between the cutting mode and the coagulation mode. The power increase / decrease buttons are used to adjust the output power of the electromagnetic knife; the setting buttons are used to enter the system setting mode, and in the setting mode, the parameters of the system can be set through the parameter increase / decrease buttons, including but not limited to electromagnetic field intensity range, frequency range and working time limit. The parameter increase / decrease buttons are used to increase or decrease the selected parameters in the setting mode. In the setting mode, one of the mode buttons or the setting buttons has a confirmation function, and the other has a quit function. The forward selection buttons and the backward selection buttons are used to select and switch between multiple menu levels or multiple parameter setting items in a progressive manner.

[0046] As shown in FIGS. 1, 2 and 3, the display driving module includes a display screen 12 and a control panel 13 arranged on the shell 11, and is used to receive the system running parameters, working state data and fault information data sent by the control processing module, and convert them into visual images or texts presented on the display screen 12. The doctor can intuitively understand the working conditions of the electromagnetic knife, such as the current electromagnetic field intensity, frequency, working mode, etc., through the display screen 12, which is convenient for operation and adjustment. The control panel 13 is provided with a plurality of control buttons 14, including mode buttons, switching buttons, power increase / decrease buttons, setting buttons, parameter increase / decrease buttons, forward selection buttons and backward selection buttons. The mode buttons are used to select the working mode of the electromagnetic knife, including cutting mode and coagulation mode, and different modes correspond to different combinations of high-frequency alternating electromagnetic field intensity and frequency parameters. The switching buttons are used to control the electromagnetic knife to switch between the cutting mode and the coagulation mode. The power increase / decrease buttons are used to adjust the output power of the electromagnetic knife; the setting buttons are used to enter the system setting mode, and in the setting mode, the parameters of the system can be set through the parameter increase / decrease buttons, including but not limited to electromagnetic field intensity range, frequency range and working time limit. The parameter increase / decrease buttons are used to increase or decrease the selected parameters in the setting mode. In the setting mode, one of the mode buttons or the setting buttons has a confirmation function, and the other has a quit function. The forward selection buttons and the backward selection buttons are used to select and switch between multiple menu levels or multiple parameter setting items in a progressive manner. Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the signal receiving and transmitting module includes an output connection port 17 and an input connection port 18, and the foot switch 3 is connected to the input connection port 18. The tool head assembly 2 includes an electrode tool head 21, an output adapter 22, and an energy transmission cable 23, one end of the output adapter 22 is detachably connected to the energy transmission cable 23, the other end is detachably connected to the electrode tool head 21, and the energy transmission cable 23 is connected to the output connection port 17 through plug-in connection. The electrode tool head 21 includes a single-stage electrode tool head and a double-stage electrode tool head, and correspondingly, the output connection port 17 includes a single-stage electrode tool head connection port and a double-stage electrode tool head connection port. The energy transmission cable 23 electrically connected to the single-stage electrode tool head is connected to the single-stage electrode tool head connection port through plug-in connection, and the energy transmission cable 23 electrically connected to the double-stage electrode tool head is connected to the double-stage electrode tool head connection port through plug-in connection. The rear side of the electrode structure of the single-stage electrode tool head is provided with a bending and shaping connection part 24, which is used for angle adjustment and shaping of the electrode structure. The bending and shaping connection part 24 includes an elastic metal pipe body and an insulating layer wrapped on the outer surface of the elastic metal pipe body. The elastic metal pipe body is made of shape memory alloy or plastic metal material, which can be plastically deformed under the action of external bending force and keep the shape after bending. A tensile reinforcing wire is also arranged in the elastic metal pipe body, which is made of high-strength fiber material (such as aramid fiber, carbon fiber, etc.) or metal wire (such as stainless steel wire), which is used to improve the tensile resistance of the bending and shaping connection part 24. The insulating layer is made of medical-grade insulating material, such as polytetrafluoroethylene, medical-grade silicone rubber, etc., with a thickness of 0.1-0.5mm, which is used to prevent the elastic metal pipe body from contacting the surrounding tissue or equipment, thereby avoiding the risk of electric leakage.

[0047] There are various forms of electrode structures for the single-stage electrode tool head, including spherical electrodes, ring-shaped electrodes, knife-shaped electrodes, needle-shaped electrodes, double-blade electrodes, sickle-shaped electrodes, and insulating coated electrodes. Among them:

[0048] The electrode head of the spherical electrode is in the form of a spherical or hemispherical curved surface structure, which is used to increase the current acting area and achieve uniform coagulation and hemostasis of large-area tissue;

[0049] The electrode of the ring-shaped electrode is in the form of a closed ring structure, which is used to form a ring-shaped current path and achieve ring-shaped cutting or resection of tissue;

[0050] The electrode of the knife-shaped electrode is in the form of a thin sheet-shaped blade structure, which is used to concentrate the current density and achieve rapid cutting and separation of fine tissue;

[0051] The electrode of the needle-shaped electrode is in the form of an elongated needle structure, which is used to highly concentrate the current at the needle tip and achieve accurate puncture and minimally invasive operation of deep tissue;

[0052] The electrode of the double-blade electrode is provided with cutting blade structures on both sides, which is used to simultaneously perform bidirectional cutting and improve the efficiency of large-area tissue separation;

[0053] The electrode of the sickle-shaped electrode is curved in the shape of a sickle, which is used to adapt to the arc cutting requirement of narrow space or special anatomical site.

[0054] The electrode of the insulated-coating electrode is at least partially covered with a layer of insulating material, only the electrode tip or specific area is exposed, which is used to accurately control the current action range and reduce the thermal damage to the surrounding normal tissue.

[0055] The electrode structure of the double-stage electrode knife head includes straight bipolar forceps electrode and gun-shaped bipolar forceps electrode, both electrode tips of the double-stage electrode knife head are made of conductive metal material, and the distance between the two electrode tips is 0.2-1mm. The high-frequency alternating electromagnetic field energy only forms a loop in the tissue between the two electrode tips, so as to realize accurate heating and coagulation of the target tissue and reduce the thermal damage to the surrounding normal tissue.

[0056] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 6 , the foot switch 3 includes a mounting seat 31 and a connecting cable 32, one end of the connecting cable 32 is connected with the input connection port 18, and the other end is connected with the mounting seat 31. The mounting seat 31 is provided with a left mounting groove and a right mounting groove, and a left pedal 33 and a right pedal 34 are respectively mounted in the left mounting groove and the right mounting groove. The left pedal 33 and the right pedal 34 are both movably connected with the mounting seat 31 through an elastic reset mechanism, and the bottom of the left pedal 33 and the right pedal 34 is provided with a micro switch. The micro switch is electrically connected with the control processing module through the connecting cable 32, which is used to convert the stepping action of the pedal into an electrical signal and transmit it to the control processing module. The upper surface of the left pedal 33 and the right pedal 34 is provided with anti-skid lines, which are raised stripes or dot matrix. The height of the raised lines is 0.5-2mm, which is used to increase the friction between the soles of the doctors and the surface of the pedals, preventing the pedals from being misoperated or operated inaccurately due to the slipping of the soles during the operation.

[0057] The left pedal 33 and the right pedal 34 correspond to two different working modes of the electromagnetic knife respectively, including cutting mode and coagulation mode. When the left pedal 33 is stepped down, the micro switch at the bottom is closed, sending a cutting mode start signal to the control processing module. After receiving the signal, the control processing module controls the high-frequency electromagnetic field generating module to output high-frequency alternating electromagnetic field energy suitable for cutting. When the right pedal 34 is stepped down, the micro switch at the bottom is closed, sending a coagulation mode start signal to the control processing module. After receiving the signal, the control processing module controls the high-frequency electromagnetic field generating module to output high-frequency alternating electromagnetic field energy suitable for coagulation.

[0058] The surface color of the left pedal 33 is blue, and the surface color of the right pedal 34 is yellow, both of which are high-contrast medical-grade safety colors, and the surface colors of the left pedal 33 and the right pedal 34 are realized by medical-grade plastic injection molding or surface coating process, with a coating thickness of 0.05-0.2mm, good wear resistance, corrosion resistance and ultraviolet resistance, to ensure that the color does not fade or fall off during long-term use.

[0059] As shown in Figure 6 The mounting seat 31 is provided with a stop button 35 between the left mounting groove and the right mounting groove, the stop button 35 is electrically connected with the control processing module through the connecting cable 32, and the stop button 35 is located at the rear side of the left pedal 33 and the right pedal 34, so that the misoperation can be effectively avoided.

[0060] To sum up, the high-frequency electromagnetic field generating module generates a high-frequency alternating electromagnetic field, which is conducted to the electrode tool bit 21 through the energy transmission cable 23, and a near-field electromagnetic field with extremely small range and extremely strong energy is formed at the front end of the electrode by using the near-field electromagnetic field focusing technology. Based on the geometric design of various different electrode structures (such as spherical and knife-shaped), the distribution of the electromagnetic field in the tissue is further regulated: during cutting, the knife-shaped electrode cooperates with the focused electromagnetic field to concentrate the current density, and uses the interaction force to make the water molecules between the tissue cells oscillate at high speed to produce heat, realizing the instantaneous tissue separation at the molecular level; during coagulation, the spherical electrode expands the energy acting area to promote the rapid denaturation and coagulation of the blood vessel protein. The present application greatly reduces the heat damage range by virtue of the precise focusing regulation of electromagnetic field energy and the diversified special electrode design, significantly improves the operation efficiency in the operation of blood vessel / nerve stripping and tissue incision. At the same time, the system does not need a negative plate, avoiding the current passing through the human body, and ensuring the safety of the patient from the root. In addition, the detachable tool bit assembly 2 and the bending and shaping connecting part 24 further improve the operation flexibility, so that it can adapt to deep and narrow part operation, realize more delicate and minimally invasive operation effect, and effectively solve the problems of large damage and low efficiency of traditional surgical knives.

[0061] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An electromagnetic knife surgical system, characterized in that: The present invention comprises a main unit (1), a blade assembly (2) and a foot switch (3), wherein the main unit (1) comprises a housing (11), wherein a power supply module, a high-frequency electromagnetic field generating module, a control processing module and a signal receiving and transmitting module are arranged in the housing (11), wherein the power supply module, the high-frequency electromagnetic field generating module and the signal receiving and transmitting module are all electrically connected to the control processing module, and the high-frequency electromagnetic field generating module, the blade assembly (2) and the foot switch (3) are all electrically connected to the signal receiving and transmitting module; the power supply module is used to convert the external input alternating current into the direct current required by each module of the system and to supply power to each module; the high-frequency electromagnetic field generating ... The field generating module includes a high-frequency oscillation circuit and a power amplification circuit, which are used to generate and amplify high-frequency alternating electromagnetic field energy that meets surgical requirements; the high-frequency electromagnetic field generating module receives a control signal sent by the control processing module, and controls and adjusts the electromagnetic field intensity and frequency; the control processing module is used to receive control instructions, and send control signals to the high-frequency electromagnetic field generating module and the signal receiving and transmitting module according to the control instructions and the preset program, so as to regulate the working status of each module; the signal receiving and transmitting module is used to receive control signals from external devices and transmit them to the control processing module, and transmit the control instructions of the control processing module to the cutter head assembly (2).

2. The electromagnetic knife surgical system according to claim 1, characterized in that: A display driver module is also provided in the housing (11), the display driver module being electrically connected to the control processing module. The display driver module includes a display screen (12) provided on the housing (11), and the display driver module is used to receive system operating parameters, operating status data, and fault information data sent by the control processing module, and convert them into visual images or text for presentation on the display screen (12).

3. The electromagnetic knife surgical system according to claim 2, characterized in that: The display driver module further comprises a control panel (13), on which a plurality of control buttons (14) are arranged, the control buttons (14) comprising a mode button, a switch button, a power increase / decrease button, a setting button, a parameter increase / decrease button, a progressive front selection button and a progressive back selection button; the mode button is used to select the working mode of the electromagnetic knife, including a cutting mode and a coagulation mode, and different modes correspond to different high-frequency alternating electromagnetic field strength and frequency parameter combinations; the switch button is used to control the electromagnetic knife to switch between the cutting mode and the coagulation mode; the power increase / decrease button is used to adjust the output power of the electromagnetic knife; the setting button is used to enter the system setting mode, in which the parameter increase / decrease button can be used to set various parameters of the system, including but not limited to the electromagnetic field strength range, frequency range and working time limit; the parameter increase / decrease button is used to increase or decrease the selected parameter in the setting mode; in the setting mode, one of the mode button or the setting button has a confirmation function, and the other has an exit function; the progressive front selection button and the progressive back selection button are used to perform progressive switching selection between multi-level menus or multiple groups of parameter setting items.

4. The electromagnetic knife surgical system according to claim 1, characterized in that: A heat dissipation module is also provided in the housing (11), the heat dissipation module is electrically connected to the control processing module, and the heat dissipation module comprises a temperature sensor for detecting the temperature of each module and a heat dissipation fan with a variable frequency motor.

5. The electromagnetic knife surgical system according to claim 4, characterized in that: An air inlet (15) is provided on the bottom wall or the side wall of the shell (11), dustproof cotton is provided on the inner side of the air inlet (15), an air outlet (16) is provided on the rear wall of the shell (11), and the air outlet end of the heat dissipation fan is provided corresponding to the air outlet (16); a plurality of anti-skid support pads (19) are provided on the bottom wall of the shell (11), and the anti-skid support pads (19) support the shell (11) to a certain height, so that there is a certain distance between the bottom of the shell (11) and the supporting surface.

6. The electromagnetic knife surgical system according to claim 1, characterized in that: The cutter head assembly (2) includes an electrode cutter head (21), an output adapter (22) and an energy transmission cable (23), one end of the output adapter (22) is detachably connected to the energy transmission cable (23), and the other end is detachably connected to the electrode cutter head (21); the signal receiving and transmission module includes an output connection port (17) and an input connection port (18), the energy transmission cable (23) is plug-connected to the output connection port (17), and the foot switch (3) is connected to the input connection port (18).

7. The electromagnetic knife surgical system according to claim 6, characterized in that: The electrode cutter head (21) includes a single-stage electrode cutter head, and the electrode structure of the single-stage electrode cutter head includes a spherical electrode, a ring electrode, a knife-shaped electrode, a needle-shaped electrode, a double-edged electrode, a sickle-shaped electrode and an insulating coating electrode; wherein: The electrode head of the spherical electrode is a spherical or hemispherical curved surface structure, which is used to increase the current action area and achieve uniform coagulation and hemostasis of a large area of ​​tissue; The annular electrode has a closed annular structure and is used to form an annular current path to achieve an annular cutting or resection of tissue; The knife-shaped electrode has a thin blade structure and is used to concentrate current density to achieve rapid cutting and separation of fine tissues; The needle-type electrode has a slender needle-like structure and is used to highly concentrate the current at the needle tip, achieving precise puncture of deep tissues and minimally invasive operations; The double-edged electrode has cutting blade structures on both sides of the electrode, which is used to perform bidirectional cutting simultaneously, thereby improving the efficiency of large-area tissue separation; The sickle-shaped electrode has a sickle-shaped curved structure, which is used to meet the arc cutting requirements of narrow spaces or special anatomical parts; The electrode surface of the insulating coating electrode is at least partially covered with an insulating material layer, with only the electrode tip or a specific area exposed, so as to precisely control the range of current action and reduce thermal damage to surrounding normal tissues.

8. The electromagnetic knife surgical system according to claim 7, characterized in that: A bending shaping connection portion (24) is provided on the rear side of the electrode structure of the single-stage electrode blade head, and the bending shaping connection portion (24) is used for adjusting the angle and shaping of the electrode structure; the bending shaping connection portion (24) comprises an elastic metal tube body and an insulating layer covering the outer surface of the elastic metal tube body, and the elastic metal tube body is made of a shape memory alloy or a plastic metal material, and can undergo plastic deformation under the action of an externally applied bending force and maintain the bent shape; The insulating layer is made of medical-grade insulating material and has a thickness of 0.1-0.5 mm.

9. The electromagnetic knife surgical system according to claim 7, characterized in that: The electrode blade (21) also includes a bipolar electrode blade, the electrode structure of the bipolar electrode blade includes a straight bipolar forceps electrode and a gun-type bipolar forceps electrode, the two electrode tips of the bipolar electrode blade are made of conductive metal materials, and the distance between the two electrode tips is 0.2-1mm; the output connection port (17) includes a monopolar electrode blade connection port and a bipolar electrode blade connection port, the energy transmission cable (23) electrically connected to the monopolar electrode blade is plugged and connected to the monopolar electrode blade connection port, and the energy transmission cable (23) electrically connected to the bipolar electrode blade is plugged and connected to the bipolar electrode blade connection port.

10. The electromagnetic knife surgical system according to claim 7, characterized in that: The foot switch (3) comprises a mounting base (31) and a connecting cable (32), one end of the connecting cable (32) is plug-connected to the input connection port (18), and the other end is connected to the mounting base (31); a left mounting slot and a right mounting slot are provided on the mounting base (31), a left pedal (33) and a right pedal (34) are respectively installed in the left mounting slot and the right mounting slot, the left pedal (33) and the right pedal (34) are both movably connected to the mounting base (31) through an elastic reset mechanism, and a micro switch is provided at the bottom of the left pedal (33) and the right pedal (34), and the micro switch is electrically connected to the control processing module through the connecting cable (32), and is used to convert the pedal stepping action into an electrical signal and transmit it to the control processing module; wherein: The left pedal (33) and the right pedal (34) respectively correspond to two different working modes of controlling the electromagnetic knife, and the working modes include a cutting mode and a coagulation mode. When the left pedal (33) is stepped on, the micro switch at the bottom thereof is closed, and a cutting mode start signal is sent to the control processing module. After the control processing module receives the signal, the high-frequency electromagnetic field generating module is controlled to output a high-frequency alternating electromagnetic field energy suitable for cutting. When the right pedal (34) is stepped on, the micro switch at the bottom thereof is closed, and a coagulation mode start signal is sent to the control processing module. After the control processing module receives the signal, the high-frequency electromagnetic field generating module is controlled to output a high-frequency alternating electromagnetic field energy suitable for coagulation. The surface color of the left pedal (33) is blue, and the surface color of the right pedal (34) is yellow, and the surface colors of the left pedal (33) and the right pedal (34) are both achieved by medical-grade plastic injection molding or surface coating technology, and the coating thickness is 0.05-0.2 mm; The upper surfaces of the left pedal (33) and the right pedal (34) are both provided with anti-skid patterns, wherein the anti-skid patterns are raised stripes or dot-matrix raised patterns, and the height of the raised patterns is 0.5-2 mm; A stop button (35) is provided on the mounting seat (31) between the left mounting slot and the right mounting slot. The stop button (35) is electrically connected to the control processing module via a connecting cable (32). The stop button (35) is located at the rear side of the left pedal (33) and the right pedal (34).

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