CN116035687A - Low-frequency treatment device, equipment and application thereof - Google Patents

Abstract

A low frequency treatment device comprising: a shaft having a proximal end and a distal end; an electrode assembly located at a distal end of the shaft, the electrode assembly including a positive electrode and a negative electrode capable of forming a voltage difference; a separator that separates the positive electrode and the negative electrode; the detection sensing device is positioned at the far end of the shaft and comprises a detection rod, an elastic component and a sensing component which are connected in sequence. According to the low-frequency treatment device provided by the invention, in arthroscopic surgery, at least the problems that an electric loop and repeated switching of an ablation mode affect the efficiency of the surgery can be solved, and hard bones are protected. The invention also provides a low frequency treatment device which can automatically identify and adjust the output power of ablation and protect hard bone during operation.

Description

A low-frequency processing device, equipment and application thereof

technical field

The invention relates to plasma radiofrequency ablation technology, in particular to a low-frequency treatment device, equipment and application thereof.

Background technique

The basic principle of using plasma radio frequency technology for treatment is to excite NaCl and other electrolytes into low-temperature plasma through a stable electric field with an ultra-low frequency of 100-120 kHz, and form a thin plasma layer with a thickness of 100 μm in front of the electrode. Usually, under a 100kHz ultra-low frequency stable electric field, exciting a molecule of NaCl will generate a kinetic energy of 8 electron volts, and the kinetic energy required to break a peptide bond is 4 electron volts, so that the target tissue cells are disintegrated in units of molecules, and proteins, etc. Tissue pyrolysis vaporizes into low molecular weight gases such as H ₂ , O ₂ , CO ₂ , N ₂ and methane, and completes various functions such as tissue cutting, punching, ablation, shrinkage and hemostasis at low temperature. Because of its relatively low operating temperature (about 40-70°C), it is called low-temperature plasma radiofrequency ablation.

Plasma radiofrequency ablation technology has been applied in arthroscopic surgery to treat joint diseases. In the plasma radiofrequency ablation operation, the radiofrequency energy is applied to the electrode structure through the radiofrequency host, and it is ionized into plasma in the saline environment of the joint cavity. The high-speed moving ions will quickly strike the molecular bonds in the tissue cells. break to achieve the effect of ablation and decomposition.

At present, the most widely used plasma radiofrequency ablation products on the market are bipolar plasma radiofrequency ablation products, that is, the positive and negative electrodes of the radio frequency are integrated into the working end, and an electrical circuit is formed through physiological saline or conductive liquid. A stable plasma state will be formed. Under arthroscopic surgery, when using the plasma radiofrequency ablation head (electrode), usually two entrances will be cut into the joint cavity, one entrance is used for the entrance of radiofrequency ablation products, and the other entrance is used for the entrance of arthroscopic products. , providing image information through the arthroscopic host.

Put the plasma radio frequency ablation head (electrode) close to the target soft tissue, and perform ablation by pressing the handle button or stepping on the foot button. The target soft tissue, the high-speed particles in the plasma state will break the molecular bonds of the target soft tissue to achieve the purpose of ablation of soft tissue. If you need to adjust the output power, you can adjust the output energy through the shift button of the handle, or adjust the control button on the panel of the host. When the pedal or handle button is released, it stops working.

In the prior art, when using the bipolar plasma radiofrequency ablation cutter head/electrode to work, the doctor needs to control the distance between the positive electrode of the cutter head (electrode) and the target tissue according to the manipulation experience. When the positive electrode of the electrode is too close to the soft tissue or is wrapped by the soft tissue, the physiological saline or conductive fluid is blocked, which will cause the electrode surface to fail to form a stable plasma state, thereby affecting the work efficiency. When the positive pole of the electrode is too far away from the soft tissue, the effective area of the plasma state cannot contact the soft tissue, thereby affecting the work efficiency. At the same time, when soft tissue is ablated, because the radiofrequency ablation head (electrode) is in close contact with the soft tissue, it is difficult to visually detect the ablation status through the arthroscope, that is, whether the target soft tissue ablation has been completed, and whether ablation has been reached The cartilage area, hard bone area or in a non-contact state. During arthroscopic surgery, the doctor cannot directly observe the ablation status while performing the ablation operation. It is necessary to stop the ablation continuously and confirm the effect of the ablation status through the arthroscope before proceeding. This will seriously affect the operation and work efficiency.

Patent document CN101416874B discloses a medical probe comprising: a flexible insertion tube, a rigid distal tip, an elastic member, and a magnetic orientation sensor contained in the distal tip for sensing the distal tip relative to the distal end of the insertion tube an orientation that changes in response to deformation of the elastic member to give a total amount of movement of the distal tip relative to the distal end of the insertion tube, thereby giving a measure of the deformation of the elastic member, the magnetic orientation sensor being configured to A signal indicative of pressure applied to the distal tip is generated in response to the deformation. The device is mainly used in cardiac radiofrequency ablation to ensure proper contact between electrodes and endocardium during ablation.

Patent document JP2018075394A discloses predicting the electrical connection of the room wall based on the contact force measured during radiofrequency ablation. The catheter includes an ablation tip and a distal portion having a force sensor and being an energy source, a flexible catheter is operably connected to an energized parameter measurement device, and the ablation tip of the catheter is introduced into a patient during a medical procedure to guide the catheter to be moved The distal portion of the ablation head abuts against a step position of a target tissue and the ablation head is moved relative to a first target tissue position, and when the ablation head is energized for the first target tissue position, a series of energization parameters and force sensors are brought into contact. The size of the damaged area is automatically determined from the measurements of the force sequence and used to guide the ablation head to a second or subsequent target tissue location and to automatically generate control information. The method and device are mainly used in the treatment of atrial fibrillation.

Patent document CN108720920B discloses an ablation catheter with the function of detecting pressure in contact with tissue. The distal end of the ablation catheter includes an elastic body and a pressure sensor. The elastic body is a hollow tubular structure, which includes a section A and a section B. There is a hollow structure with increased elasticity and the end extends to section B. The pressure sensor is arranged in the junction area between section A and section B. The hollow structure includes at least one strip-shaped groove extending in a stepped manner and arranged in a spiral shape. Since the elasticity of the elastic body in section A is amplified by the hollow structure and the hollow structure is connected to section B, the deformation of the junction area is a magnified expression compared to the deformation of the complete elastic body structure in the prior art, and at the same time, it is not As for the problems in the background technology caused by the hollow structure being set up as a whole, a better balance can be achieved, so that the entire elastic body has appropriate elasticity during use, and can achieve the best state of tissue pressure during ablation. The adjoining pressure with the tissue is large enough, and the deformation of the handover area is large enough, the value reflected by the pressure sensor is larger, and the pressure detection effect is better. At the same time, the measured value will also cooperate with the rear-end positioning device. Measure the position, bending direction and angle of the catheter tip, the greater the value reflected by the pressure sensor, the better the precise positioning of the catheter. The invention aims to provide an ablation catheter with more accurate pressure detection, and related structures including the ablation catheter. The ablation catheter is mainly used in heart surgery.

Contents of the invention

The inventor found through research that the plasma state area is related to the output electrical power, and the thickness of the plasma state area is within 1.5mm directly above the surface of the positive electrode. This range is the effective area. After exceeding this range, the power will decay rapidly, and the ablation or coagulation effect will be sharp reduce. In addition, when doctors perform plasma radiofrequency ablation surgery under arthroscopy, they cannot accurately observe the ablation state of non-dissociated soft tissue in real time, and it is difficult to identify whether soft tissue ablation and debridement have been completed, and it is also difficult to identify whether the cartilage under the soft tissue has been touched For hard or hard bone parts, it is necessary to repeatedly switch between the "ablation stop"/"ablation run" mode, which affects the operation efficiency. In addition, in arthroscopic surgery, the doctor adjusts the power of ablation and debridement by pressing the power button of the handle or the power button of the main unit. When a large area of non-dissociated soft tissue is ablated, the button function needs to be triggered for a long time, which is inconvenient to operate.

The purpose of the present invention is to provide a low-frequency treatment device, which can be used in arthroscopic surgery, which can not only solve the problem that the electrode is too close to the surface of the tissue to easily generate an electrical circuit, but also can identify the contacted tissue (such as soft tissue, cartilage, etc.) quality, hard bone, etc.), automatically adjust the output power in the electrical circuit, and solve the problem of repeatedly switching the electrode output gear in the prior art, thereby improving the operation efficiency.

In order to solve the above technical problems, an embodiment of the present invention provides a low-frequency treatment device, including a shaft with a proximal end and a distal end; an electrode assembly located at the distal end of the shaft, and the electrode assembly includes a positive electrode capable of forming a voltage difference and the negative pole; an isolating device, which separates the positive pole from the negative pole; a detection sensing device, located at the far end of the shaft, and the detection sensing device includes a detection rod, an elastic component, and a sensing component connected in sequence; and handle.

According to some specific embodiments, the isolation device adopts a non-metallic bracket.

According to some specific embodiments, the sensing component includes a sensor and a sensor communication line, and the sensor is selected from one or more of a pressure sensor, a displacement sensor, and a stress-strain sensor.

According to some specific embodiments, the detection rod is made of non-conductive material, and is higher than the electrode assembly in a direction perpendicular to the axis.

According to some specific embodiments, the elastic member is a sealer containing a liquid substance or a gaseous substance.

According to some specific embodiments, the handle includes a control button for controlling the operation or stop of the electrode assembly.

Compared with the prior art, the technical solutions of the embodiments of the present invention have at least the following beneficial effects:

In the present invention, at least one detection rod and an elastic component (such as a sealer filled with liquid substance) connected with the detection rod are arranged near the electrode assembly. The combined structure of the detection rod and the sealer can produce a rebound effect. According to the rebound effect, the softness and hardness of the tissue can be judged to determine whether the electrode is working. If there is a rebound effect, it is judged as soft tissue, and the current signal is output to control the electrode work. If there is no rebound effect, it is judged as hard tissue and no current signal is output.

Secondly, according to the elastic parts and sensing parts (such as pressure sensor, displacement sensor, etc.) in the detection and sensing device to identify the displacement and pressure, judge the state of the tissue in contact with the detection rod, and then automatically adjust the output power to avoid frequent surgeries during the operation. Confirm the ablation status, and switch the electrode output gear repeatedly. The pressure sensor can convert the pressure signal into a usable output electrical signal. According to the electrical signal fed back by the pressure sensor and the change of the electrical signal, it is identified whether the contact is cartilage or hard bone, so as to control the circuit. When the detection rod touches the hard bone, the pressure signal received by the sensor increases, and the pressure value of the sensor is judged to feed back the output power of the electrode assembly or prompt an alarm or stop the ablation work.

Thirdly, the detection rod ensures that there is a distance between the electrode assembly and the tissue without damaging the tissue, and solves the problem that the electrode assembly and the tissue surface are too close to the surface of the tissue in the plasma radio frequency ablation operation, which is likely to cause an electrical circuit problem. At the same time, since the detection rod is higher than the electrode assembly, it can prevent the electrode assembly from damaging the hard bone during ablation, so that the hard bone can also be protected when detecting tissue.

Finally, the detection rod can ensure sufficient conductive liquid between the electrode assemblies. When the charged particles between the electrode assemblies are insufficient, the output power will be affected. At the same time, the detection rod can make the target soft tissue be in an effective ion state region, so as to achieve effective ablation effect.

The present invention also provides a low-frequency treatment device, including the low-frequency treatment device provided by the present invention.

According to some specific implementations, the low-frequency treatment device includes:

Power circuit S0;

A control module S1, the input end of the control module S1 is connected to the output end of the power supply circuit S0;

An ablation module S2, including the electrode assembly, the input end of the ablation module S2 is connected to the output end of the control module S1;

The detection sensing module S3 includes the detection sensing device, the output end of the detection sensing module S3 is connected to the input end of the control module S1, when the detection rod of the detection sensing device touches When tissue is formed, the contacted tissue is judged by the displacement change and pressure sensed by the elastic component and the sensing component, and outputs a signal to the control module S1, and the control module S1 outputs a signal to the ablation module S2 to control the ablation module S2. The electrode assembly in the ablation module S2 runs or stops.

According to some specific implementations, the control module S1 includes a pedal and/or a control button to control the operation or stop of the electrode assembly.

According to some specific implementation manners, the low-frequency treatment device further includes an alarm module S4 connected to the output terminal of the detection and sensing module S3.

The invention also provides the application of a low-frequency treatment device and equipment in arthroscopic surgery.

Description of drawings

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Those skilled in the art should understand that the accompanying drawings are intended to schematically illustrate preferred embodiments of the present invention, and components in the drawings are not drawn to scale.

FIG. 1 is a schematic diagram of plasma radiofrequency ablation under arthroscopic surgery in the prior art.

Fig. 2 is a cross-sectional view of a plasma radiofrequency ablation probe according to a specific embodiment of the present invention.

Fig. 2A is a structural diagram of a plasma radiofrequency ablation probe according to a specific embodiment of the present invention.

Fig. 2-1 is a structural diagram of a low-frequency treatment device according to a specific embodiment of the present invention.

Fig. 2-2 is a structural diagram of a low-frequency treatment device according to a specific embodiment of the present invention.

Fig. 3-1 is a schematic structural diagram of a detection and sensing device according to a specific embodiment of the present invention.

Fig. 3-2 is a schematic structural diagram of a detection and sensing device according to a specific embodiment of the present invention.

Fig. 4 is a system block diagram of a low-frequency treatment device according to a specific embodiment of the present invention.

Explanation of main symbols in the attached drawings:

Low frequency processing device 10

Plasma RF Ablation Probe 10A

Detection and sensing device 100

Detection rod 101 Elastic member 102 Sensor 103

Sensor communication line 104 metal sheet 105a metal electrode wire 105b

Metal head 106a Metal stem wall 106b Isolator 107

Sleeve 110 handle 120 control button 121

Wire 130 Suction line 140

Plasma radio frequency ablation equipment 1'

Plasma radio frequency ablation electrode 10'

Radiofrequency ablation host 11

Arthroscopic equipment 2

Arthroscopy Lens 21 Camera 22 Light Source 23

Arthroscopy host 24 monitor 25

Detailed ways

Arthroscopic surgery is to insert a lens metal tube with a lighting device into the joint cavity through a small incision, and enlarge the internal structure of the joint cavity on a monitor to observe the pathological changes and locations in the joint cavity, and at the same time monitor the joint cavity under the monitor of the TV. Perform a thorough inspection and clean up the lesion. Arthroscopy is a minimally invasive procedure. As shown in Figure 1, in the prior art, when doctors perform arthroscopic surgery, they need to use plasma radiofrequency ablation equipment 1' and arthroscopic equipment 2 at the same time. Plasma radiofrequency ablation equipment 1' includes a radiofrequency ablation host 11 and a Plasma radio frequency ablation electrode 10'. The arthroscopic device 2 includes an arthroscopic host 24 and a light source 23 connected thereto, a camera 22 and an arthroscopic lens 21. The light source 23 can provide light for the operation, and the arthroscopic lens 21 and the camera 22 can monitor and record the state of the target tissue. The host 24 is also connected with the display 25, and the image signal transmitted back by the camera 22 is projected on the display, which is convenient for the doctor to observe. When the doctor uses the plasma radiofrequency ablation electrode 10' to ablate the tissue, because the plasma radiofrequency ablation electrode 10' is too close to the target tissue A, the arthroscopic lens 21 is placed in the free body B (there is movable cartilage or osteocartilage in the finger joint) Fragments), it is difficult for doctors to visually detect the non-dissociated soft tissue ablation status through the arthroscopic lens 21 and display 25. During the operation, the doctor needs to repeatedly switch between the "ablation stop"/"ablation operation" mode.

In order to make the above objects, features and beneficial effects of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that various other embodiments can be conceived and modifications can be made by those skilled in the art based on the teachings of this specification without departing from the scope or spirit of this disclosure. Accordingly, the following detailed description is illustrative and not restrictive.

As a feasible implementation, the low-frequency treatment device of the present invention can be a plasma radiofrequency ablation electrode, as shown in Figure 2-1 and Figure 2A, the low-frequency treatment device 10 includes a plasma radiofrequency ablation probe 10A close to the head, and Connected to them are the cannula 110, the handle 120 and the wire 130 near the tail. The handle 120 is provided with a control button 121, which is used to control the operation (i.e., ablation) and stop of the electrode assembly in the plasma radiofrequency ablation probe 10A. It is used to adjust the working mode and non-working mode. In the non-working mode, the plasma radio frequency ablation electrode cannot perform the ablation function. Although not shown in the figure, the wire 130 can be connected with a radio frequency ablation host or other matching low frequency treatment hosts to form a plasma radio frequency ablation device or a low frequency treatment device.

As a feasible implementation manner, the low-frequency treatment device 10 further includes a suction pipeline 140, as shown in Fig. 2-2.

As shown in accompanying drawing 2A and accompanying drawing 2, plasma radiofrequency ablation probe 10A comprises spherical metal head 106a and cylindrical metal rod wall 106b, and metal head 106a and metal rod wall 106b together constitute the negative pole of electrode assembly; The metal electrode wire 105b extending from the inside to the outside of the probe 10A and the metal sheet 105a on the surface of the probe 10A, the metal electrode wire 105b and the metal sheet 105a together constitute the positive electrode of the electrode assembly. The positive pole and the negative pole of the electrode assembly are separated by an isolating device 107 (such as a non-metallic bracket), so that the probe 10A is in a non-short circuit state, and an electrical circuit is formed through the conductive liquid.

As a feasible implementation, as shown in FIG. 2A , guide holes can be designed on the surface of the metal sheet 105a, which not only enables the liquid to circulate, but also allows the RF energy to be evenly distributed and diffused between the electrodes, thereby promoting cooling of the electrodes.

Near the metal sheet 105a (positive electrode) of the plasma radiofrequency ablation probe 10A, a detection rod 101 is provided that passes through the metal sheet 105a and is higher than the metal electrode wire 105b in a direction perpendicular to the metal sheet 105a, and the elastic member is connected with the detection rod 101 102 , the sensor 103 is connected to the elastic member 102 . The detection rod 101, the elastic member 102 and the sensor 103 form a detection and sensing device 100, as shown in Figures 3-1 and 3-2.

The detection rod 101 can be made of high-strength non-elastic parts, such as polyether ether ketone (PEEK), polyphenylene sulfone resin (PPSU) and other hard plastic, high temperature resistant non-metallic materials. Preferably, the detection rod 101 can be a cylinder; preferably, the diameter of the cylinder is 1-8 mm, and the height is 2-6 mm. Wherein, the height of the detection rod 101 is designed based on the height of the effective area of the ion state generated by the product. When the detection rod 101 works in combination with the plasma radiofrequency ablation probe 10A, the effective plasma range that can be generated is considered, and the design of the high height of the detection rod 101 leads to inflexible use and interference with the joint tissue, or due to soft tissue and effective plasma The problem with intervals that are too far away for ablation. At the same time, this height design can also fully realize a sufficient gap between the electrode part and the ablated soft tissue part, so that there is sufficient electrolyte in the generated plasma area and maintain enough ions to continuously ablate the soft tissue.

The elastic component 102 can be a sealer filled with liquid or gaseous substances. Preferably, the gaseous substance in the sealer can be an inert gas meeting standard atmospheric pressure; preferably, the height of the compressible space of the sealer is 1-6 mm. Those skilled in the art should understand that, in order to achieve the same technical effect, the elastic component 102 may also be other functional components for identifying displacement changes.

The sensor 103 can be a pressure sensor, and a sheet-type high-sensitivity pressure sensor as disclosed in the invention patent CN108801536B can be selected for measuring the surface pressure. The sensor 103 can also be a stress-strain sensor. Preferably, the width of the sensor 103 is 4-5 mm.

As shown in accompanying drawing 2, sensor 103 is connected with sensor communication line 104, and when detecting rod 101 is subjected to positive pressure, the inner volume of elastic member 102 (such as sealer) is compressed, and sensor 103 is subjected to pressure change, and pressure signal is transformed into Electrical signal, and return electrical signal through the sensor communication line 104. When the plasma radiofrequency ablation probe 10A performs soft tissue ablation normally, the rebound rate of the probe rod 101 is the same as the radio frequency ablation rate, which is about 0.5mm/s. When the rate of change tends to 0, but there is still a pressure value, it means that the contact part is hard bone or cartilage, which cannot be ablated quickly.

Figures 3-1 and 3-2 exemplarily show the structure of the detection and sensing device, and those skilled in the art should understand that in order to achieve the same technical effect, the detection and sensing device may also have other designs. The embodiments of accompanying drawings 3-1 and 3-2 only show one detection rod, and the detection rod is perpendicular to the metal sheet. Those skilled in the art should understand that two or more detection rods can be set, and the detection rod and the metal sheet can also be arranged. The metal sheet is in a non-vertical state to achieve the same or similar technical effects.

The system block diagram of the plasma radiofrequency ablation equipment as shown in accompanying drawing 4, the plasma radiofrequency ablation equipment comprises: a power supply circuit S0, the power supply circuit S0 can be connected with the mains for continuous power supply; a control module connected with the output end of the power supply circuit S0 S1; the ablation module S2 connected to the output terminal of the control module S1, the control module S1 obtains electric energy through the power circuit S0 to control the operation of the electrode assembly in the ablation module S2; the detection and sensing module S3 includes a detection and sensing device, and its output The terminal is connected with the control module S1, and can output signals through the sensor communication line in the detection sensor device. During the operation, when the detection rod in the detection and sensing device touches the tissue, the contacted tissue is judged by the displacement change and pressure sensed by the elastic component and the sensing component, and a signal is output to the control module S1 to control The module S1 outputs a signal to the ablation module S2 to control the operation or stop of the electrode assembly in the ablation module S2.

The control module S1 can realize this function jointly by the radio frequency ablation host and the control buttons on the handle. The control button on the handle not only transmits electrical signals to the radio frequency ablation host through the wire at the end of the handle, but also transmits the instructions of the radio frequency ablation host to the plasma radio frequency ablation electrode for specific operations. The host computer adjusts the output power in the electrical circuit according to the magnitude of the received current, and at the same time calculates the displacement change of the detection rod based on the magnitude of the current. According to the displacement change, the contacted tissue state can be identified. The plasma radiofrequency ablation device can also include an alarm module S4, which is connected to the output end of the detection sensing module S3. When the detection sensing module S3 detects a change in the electrical signal, the electrical signal is transmitted to the Radiofrequency ablation host. Doctors can operate control buttons or pedals according to the content displayed on the radiofrequency ablation host or alarm information.

When the product is in the working mode, the non-conductive probe rod of the plasma radiofrequency ablation probe is not subjected to external force, the pressure sensor has no current generation, and the plasma radiofrequency ablation device does not work.

When the plasma radiofrequency ablation probe touches the soft tissue, the probe rod is subjected to external force, compresses the sealer, forms a specific pressure, transmits it to the sensor, feeds back a current signal of a specific magnitude, and transmits it to the radiofrequency ablation host through the sensor communication line, the radiofrequency ablation host Based on the magnitude of the current signal, the control module in the device outputs the corresponding power to realize the automatic soft tissue ablation function. At the same time, the greater the pressure received, the higher the output power.

When the soft tissue contacted by the plasma radiofrequency ablation probe is ablated, the probe rod gradually rebounds, the pressure in the sealer decreases, the current signal fed back by the pressure sensor decreases, and the output power of the corresponding host decreases.

When the soft tissue contacted by the plasma radiofrequency ablation probe is completely ablated, the probe rod returns to its original state, the sealer has no pressure, and the host has no output power.

When the plasma radiofrequency ablation probe touches hard tissue, the probe rod is stressed, which stimulates the output power of the radiofrequency ablation host. However, since hard tissue cannot be ablated, the probe rod will not rebound when it touches hard tissue. The radio frequency ablation host is based on the current signal and output power fed back by the pressure sensor, and at the same time recognizes the change of the current. When the current does not decrease significantly within a certain period of time (that is, the probe rod has no rebound), it means that the plasma radio frequency ablation probe has not affected the soft tissue. For ablation, at this time, the prompt function can be set on the radio frequency ablation host to trigger a prompt or stop working to protect the non-ablation target tissue of the human body.

In addition, due to the height of the detection rod itself, it can also effectively ensure the distance between the positive electrode of the electrode and the target tissue, so that there is sufficient conductive liquid between the positive and negative electrodes of the product to form an electrical circuit and excite the ion state on the surface of the positive electrode.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be based on the scope defined in the claims.

Claims (11)

1. A low-frequency processing device, comprising: a shaft having a proximal end and a distal end; an electrode assembly positioned at the distal end of the shaft, the electrode assembly including positive and negative electrodes capable of forming a voltage differential; an isolator separating said positive electrode from said negative electrode; A detection and sensing device is located at the far end of the shaft, and the detection and sensing device includes a detection rod, an elastic member, and a sensing member connected in sequence; and handle. 2. The low-frequency treatment device according to claim 1, wherein the isolation device adopts a non-metallic bracket. 3. The low-frequency treatment device according to claim 1, wherein the sensing component includes a sensor and a sensor communication line, and the sensor is selected from one or more of a pressure sensor, a displacement sensor, and a stress-strain sensor. 4. The low-frequency treatment device according to claim 1, wherein the detection rod is made of non-conductive material and is higher than the electrode assembly in a direction perpendicular to the axis. 5. The low-frequency treatment device according to claim 1, wherein the elastic member is a sealer, and the sealer accommodates a liquid substance or a gaseous substance. 6. The low-frequency treatment device according to claim 1, wherein the handle includes a control button for controlling the operation or stop of the electrode assembly. 7. A low-frequency treatment device, comprising the low-frequency treatment device according to any one of claims 1-6. 8. The low frequency treatment device of claim 7, comprising: Power circuit S0; Control module S1, the input end of the control module S1 is connected to the output end of the power circuit S0; the ablation module S2 includes the electrode assembly, the input end of the ablation module S2 is connected to the output end of the control module S1 end-to-end; The detection sensing module S3 includes the detection sensing device, the output end of the detection sensing module S3 is connected to the input end of the control module S1, and when the detection rod of the detection sensing device touches When tissue is formed, the contacted tissue is judged by the displacement change and pressure sensed by the elastic component and the sensing component, and outputs a signal to the control module S1, and the control module S1 outputs a signal to the ablation module S2 to control the ablation module S2. The electrode assembly in the ablation module S2 runs or stops. 9. The low-frequency treatment device according to claim 8, wherein the control module S1 includes a pedal and/or a control button to control the operation or stop of the electrode assembly. 10. The low-frequency treatment device according to claim 8, further comprising an alarm module S4 connected to the output terminal of the detection and sensing module S3. 11. Application of a low-frequency treatment device in arthroscopic surgery, including the low-frequency treatment device according to any one of claims 1-6, or the low-frequency treatment device according to any one of claims 8-10 .

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