Plasma operation electrode and plasma operation equipment

Abstract

The utility model discloses a plasma operation electrode and plasma operation equipment, and relates to the technical field of medical instruments, and the plasma operation electrode comprises a handle; the cutter bar assembly is connected with the handle, and a suction channel is formed in the cutter bar assembly; the scalpel head assembly comprises a flower-shaped electrode, the flower-shaped electrode is fixedly connected to the end, away from the handle, of the scalpel rod assembly, the middle of the flower-shaped electrode is arranged in a concave mode towards the suction channel relative to the periphery, and a suction opening communicated with the suction channel is formed in the middle of the flower-shaped electrode; and the anti-blocking piece is arranged at the suction port and connected with the edge of the suction port so as to divide the suction port into at least two sub-ports which are independently arranged. According to the technical scheme, the problem that a suction channel in an existing plasma operation electrode is prone to being blocked is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a plasma surgical electrode and plasma surgical equipment. Background Art

[0002] Low-temperature plasma ablation refers to a surgery that achieves functions such as cutting, ablation and hemostasis of tissues under low-temperature conditions (40-70°C). It is increasingly used in clinical practice, especially in departments such as otolaryngology and joint surgery, where it is widely used for soft tissue resection, ablation, hemostasis and other surgeries.

[0003] Plasma surgical electrodes typically consist of a handle, a blade, an electrode tip, a cable, an injection line, and a suction line. The injection line is used to inject saline or other electrolyte solutions into the electrode tip, while the suction line is used to aspirate blood or residual tissue. However, due to the shape and structure of existing electrode tips, it is difficult for the tip to focus suction, making it prone to tissue blockage during surgery. This also results in low cutting efficiency, prolonging the surgery and increasing patient pain. Utility Model Content

[0004] The main purpose of the utility model is to provide a plasma surgical electrode and a plasma surgical device, aiming to solve the problem that the suction channel in the existing plasma surgical electrode is easily blocked.

[0005] To achieve the above-mentioned purpose, the utility model provides a plasma surgical electrode, which comprises:

[0006] handle;

[0007] a knife bar assembly connected to the handle and forming a suction channel therein;

[0008] A blade head assembly, comprising a flower-shaped electrode, the flower-shaped electrode being fixedly connected to an end of the blade rod assembly away from the handle, the middle portion of the flower-shaped electrode being concave relative to the periphery toward the suction channel, and the middle portion of the flower-shaped electrode being provided with a suction port communicating with the suction channel; and

[0009] An anti-blocking member is provided at the suction port and connected to an edge of the suction port to divide the suction port into at least two independently provided sub-ports.

[0010] In one embodiment, the anti-blocking member includes two dividing ribs, and the two dividing ribs are cross-arranged at the suction port to separate the suction port into four independently arranged sub-ports.

[0011] In one embodiment, the flower-shaped electrode has four electrically connected petal-shaped electrode pieces, and the four petal-shaped electrode pieces are evenly distributed along the circumference of the suction port; the two separating ribs are arranged in a cross or X shape, and the four sub-ports are evenly distributed.

[0012] In one embodiment, the anti-blocking member and the flower-shaped electrode are integrally formed.

[0013] In one embodiment, the knife bar assembly comprises:

[0014] An outer blade tube, fixedly connected to the handle;

[0015] an inner blade tube, disposed inside the outer blade tube, with both ends of the inner blade tube respectively connected to the handle and the flower-shaped electrode, and the suction channel disposed inside the inner blade tube; and

[0016] An isolation tube is provided between the inner knife tube and the outer knife tube to isolate the inner knife tube from the outer knife tube.

[0017] In one embodiment, the knife rod assembly is formed with a bending portion, which bends and extends in an axial direction away from the knife rod assembly, and the outer knife tube, the inner knife tube and the isolation tube are all formed with the bending portion at the end away from the handle, and the knife head assembly is arranged at the bending portion.

[0018] In one embodiment, the outer blade tube has an exposed end portion to form a return electrode, and the return electrode is located at the bent portion and spaced apart from the flower-shaped electrode.

[0019] In one embodiment, the outer blade tube is located at the loop electrode and is provided with a liquid outlet, and a gap is provided between the outer blade tube and the isolation tube to form a liquid injection channel connected to the liquid outlet.

[0020] In one embodiment, the plasma surgical electrode further includes an insulating tube, which is sleeved on the outside of the outer blade tube. The insulating tube is provided with an opening, and the end of the outer blade tube exposed through the opening constitutes the loop electrode, and the liquid outlet is connected to the outside through the opening.

[0021] In one embodiment, the plasma surgical electrode further includes an injection tube, which is connected to the handle and communicates with the injection channel through the handle.

[0022] In one embodiment, the plasma surgical electrode further includes a suction tube, which is connected to the handle and communicates with the suction channel through the handle.

[0023] In one embodiment, the plasma surgical electrode further includes a cable assembly, and the cable assembly is connected to the knife head assembly through the handle and the knife rod assembly.

[0024] The present invention further provides a plasma surgical device, comprising:

[0025] The plasma surgical electrode according to any one of the above embodiments; and

[0026] A plasma generator is connected to the plasma surgical electrode.

[0027] In the technical solution of the present invention, a blade assembly is connected to a handle, and a suction channel is formed within it. The suction channel is designed to remove blood and residual tissue from the surgical area in real time, maintaining a clear surgical field of view. The blade head assembly includes a flower-shaped electrode, which is fixedly connected to the end of the blade assembly away from the handle. This is the portion of the plasma surgical electrode that directly contacts tissue. Furthermore, the center of the flower-shaped electrode is recessed relative to the periphery toward the suction channel, forming a trumpet-shaped shape. A suction port is provided in the center, connected to the suction channel. This facilitates concentrated suction at the center of the electrode, improving anti-clogging effectiveness. Furthermore, the edge of the flower-shaped electrode protrudes outward to form a sharp structure, thereby improving its cutting efficiency. An anti-blocking member is provided at the suction port and connected to its edge, providing a certain degree of shielding and crushing effect on the suction port. The anti-blocking member can also divide the suction port into at least two independently arranged sub-ports, preventing residual tissue from entering the suction channel through the small sub-ports. This design can effectively avoid the problem of suction channel blockage caused by large residual tissue, ensure the stable operation of the suction system, facilitate the smooth progress of the operation, and thus improve the efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0029] Figure 1 This is a schematic structural diagram of an embodiment of a plasma surgical electrode provided by the present invention;

[0030] Figure 2 A schematic diagram of the matching structure of the knife rod assembly and the knife head assembly in another embodiment of the plasma surgical electrode provided by the present invention;

[0031] Figure 3 for Figure 2A partial enlarged view of point A in the middle;

[0032] Figure 4 This is a schematic diagram of the matching structure of the knife rod assembly and the knife head assembly in another embodiment of the plasma surgical electrode provided by the present invention.

[0033] Description of Figure Numbers:

[0034] 100. Plasma surgical electrode; 1. Handle; 2. Blade assembly; 20. Bending portion; 21. Outer blade tube; 22. Inner blade tube; 3. Blade head assembly; 31. Flower-shaped electrode; 311. Suction port; 32. Return electrode; 321. Liquid outlet; 4. Anti-blocking component; 5. Insulating tube; 6. Liquid injection tube; 7. Suction tube; 8. Cable assembly.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] Plasma surgical electrodes typically consist of a handle, a blade, an electrode tip, a cable, an injection line, and a suction line. The injection line is used to inject saline or other electrolyte solutions into the electrode tip, while the suction line is used to aspirate blood or residual tissue. However, due to the shape and structure of existing electrode tips, it is difficult for the tip to focus suction, making it prone to tissue blockage during surgery. This also results in low cutting efficiency, prolonging the surgery and increasing patient pain.

[0040] The utility model provides a plasma surgical electrode.

[0041] See also Figures 1 to 3 In one embodiment of the present invention, the plasma surgical electrode 100 includes:

[0042] Handle 1;

[0043] The blade rod assembly 2 is connected to the handle 1 and forms a suction channel inside;

[0044] The blade assembly 3 includes a flower-shaped electrode 31, which is fixedly connected to the end of the blade assembly 2 away from the handle 1. The middle portion of the flower-shaped electrode 31 is concave relative to the periphery toward the suction channel, and the middle portion of the flower-shaped electrode 31 is provided with a suction port 311 connected to the suction channel; and

[0045] The anti-blocking member 4 is provided at the suction port 311 and connected to the edge of the suction port 311 to divide the suction port 311 into at least two independently provided sub-ports.

[0046] In the technical solution of the present invention, the blade assembly 2 is connected to the handle 1, and a suction channel is formed inside it. The suction channel is designed to remove blood and residual tissue from the surgical area in real time to maintain a clear surgical field of view. The blade head assembly 3 includes a flower-shaped electrode 31, which is fixedly connected to the end of the blade assembly 2 away from the handle 1. It is the part of the plasma surgical electrode 100 that directly contacts the tissue. In addition, the middle portion of the flower-shaped electrode 31 is recessed relative to the periphery toward the suction channel to form a trumpet shape, and a suction port 311 connected to the suction channel is provided in the middle. This facilitates the electrode to gather suction in the middle and improves the anti-blocking effect. At the same time, the edge of the flower-shaped electrode protrudes outward to form a sharp structure, thereby improving its cutting efficiency. The anti-blocking member 4 is provided at the suction port 311 and connected to the edge of the suction port 311, which can provide a certain degree of shielding and crushing effect on the suction port 311. Furthermore, the anti-blocking member 4 can divide the suction port 311 into at least two independently arranged sub-ports, preventing residual tissue from entering the suction channel through the small sub-ports. This design can effectively prevent the problem of suction channel blockage caused by large residual tissue, ensure the stable operation of the suction system, facilitate the smooth progress of the operation, and thus improve surgical efficiency.

[0047] Specifically, the knife bar assembly 2 is usually made of a metal or alloy that is corrosion-resistant and biocompatible. In addition, the knife bar assembly 2 needs to be sufficiently rigid to transmit force, and also needs a certain degree of flexibility to adapt to different surgical needs. It should be noted that the anti-blocking member 4 can also be used as a part of the flower-shaped electrode 31, and is used together for cutting and other operations during the surgical process. Large pieces of tissue during the surgical process are chopped up and then extracted from the suction port 311 to prevent blockage in the pipeline. The material of the anti-blocking member 4 is usually high-temperature resistant and not easy to deform, so as to adapt to various conditions that may be encountered during the surgical process. It is worth noting that in this embodiment, there is no limitation on the shape of the suction port 311. For example, it can be circular, elliptical, rectangular or other geometric shapes. The choice of shape depends on the requirements of suction efficiency, the overall design of the electrode and the specific functions required during the operation. For example, a circular hole may provide a uniform suction effect, while a rectangular hole may be more suitable for suction in a specific direction. In addition, there is no specific limitation on the size of the aperture of the suction port 311. The aperture of the suction port 311 needs to be large enough to effectively aspirate blood and tissue fluid, but it should not be too large to avoid causing unnecessary tissue damage or affecting the focus and effect of the plasma. Generally, the size of the aperture is determined according to the type of surgery and the characteristics of the target tissue. In this embodiment, there is no specific limitation on the structure of the anti-blocking member 4. For example, it can be a grid structure composed of fine metal grids or screens, which can block larger tissue fragments from entering the suction channel while allowing blood and fine tissue to be aspirated through the grid; it can also be a comb-like structure with multiple rows of slender protrusions, similar to the teeth of a comb. The gaps between these protrusions allow blood and fine tissue to pass through, while the protrusions themselves can block larger tissue from passing through.

[0048] In the embodiments of the present invention, please refer to Figure 3 The anti-blocking member 4 includes two separating ribs, which are cross-arranged at the suction port 311 to separate the suction port 311 into four independently arranged sub-ports. The design of the anti-blocking member 4 can not only block the passage of large pieces of tissue, but also enable each sub-port to be suctioned independently. Even if one or two of the sub-ports are blocked, the other sub-ports can still continue to suction, thereby improving the stability and reliability of the entire suction system. In addition, the material of the separating ribs can be medical-grade materials that are resistant to high temperatures, corrosion-resistant, and not easily deformed, such as stainless steel, titanium alloy or other biocompatible materials. The shape and size of the separating ribs need to be designed according to the size and shape of the suction port 311 to ensure that they can effectively separate the suction port 311 while not interfering with the surgical process.

[0049] In the embodiments of the present invention, please refer to Figure 3The flower-shaped electrode 31 has four electrically connected petal-shaped electrode sheets, and the four petal-shaped electrode sheets are evenly distributed along the circumference of the suction port 311, so that the edge of the flower-shaped electrode protrudes outward to form a sharp structure, which can increase the cutting area of the flower-shaped electrode 31, thereby improving its cutting efficiency; it should be pointed out that the four petal-shaped electrode sheets of the flower-shaped electrode 31 can be formed separately and then electrically connected and combined; or they can be manufactured in one piece, without the need to electrically connect the individual electrode sheets after processing. In addition, the two dividing ribs are arranged in a cross or X shape. The cross-shaped arrangement means that the two dividing ribs intersect each other at a 90-degree angle to form a cross-shaped pattern. This structure is simple and symmetrical, and can effectively divide the suction port 311 into four independent areas, each of which can be suctioned independently, thereby improving the suction efficiency; the X-shaped arrangement means that the two dividing ribs intersect each other at an angle of about 45 degrees to form an X-shaped pattern. This structure also divides the suction port 311 into four independent sub-ports. However, compared to a cross-shaped arrangement, an X-shaped arrangement may provide better suction performance in some cases because it more effectively disperses the suction flow and prevents blockage from accumulating between the dividing ribs. Optionally, the anti-blocking member 4 can be integrally formed with the flower-shaped electrode 31, simplifying the manufacturing process, reducing the number of surgical electrode components required, and improving assembly efficiency.

[0050] In the embodiments of the present invention, please refer to Figure 2 and Figure 4 , the tool bar assembly 2 includes:

[0051] The outer blade tube 21 is fixedly connected to the handle 1;

[0052] The inner blade tube 22 is provided inside the outer blade tube 21, the two ends of the inner blade tube 22 are respectively connected to the handle 1 and the flower-shaped electrode 31, and the suction channel is provided inside the inner blade tube 22; and

[0053] The isolation tube is provided between the inner blade tube 22 and the outer blade tube 21 to isolate the inner blade tube 22 from the outer blade tube 21 .

[0054] Specifically, during surgery, the doctor can control the movement of the blade assembly 2 and the working state of the flower-shaped electrode 31 through the handle 1. A suction channel is provided inside the inner blade tube 22, which can be connected to a negative pressure device to aspirate blood, cut tissue, etc. produced by cutting during surgery, thereby maintaining a clear surgical field of view. The inner blade tube 22 and the outer blade tube 21 can be made of a conductive material so that they can be integrally formed with the flower-shaped electrode 31 using the same material. At this time, in order to prevent electrical contact between the inner blade tube 22 and the outer blade tube 21, an insulating isolation tube can be used to achieve electrical insulation between the inner blade tube 22 and the outer blade tube 21.

[0055] In the embodiments of the present invention, please refer to Figure 2 and Figure 4 To meet the doctor's needs for resecting lesions in specific locations, the blade rod assembly 2 is formed with a bend 20 that bends and extends in a direction away from the axial direction of the blade rod assembly 2. The outer blade tube 21, inner blade tube 22, and isolation tube all have bends 20 at the end away from the handle 1. The blade head assembly 3 is located at the bend 20. The bend 20 forces the blade head assembly 3 to bend in a predetermined direction, preventing unintended tissue damage during surgery, effectively saving surgical time, and improving surgical efficiency.

[0056] In the embodiments of the present invention, please refer to Figure 3 The outer blade tube 21 has an exposed end portion to form a return electrode 32 . The return electrode 32 is located at the bent portion 20 and is spaced apart from the flower-shaped electrode 31 .

[0057] Specifically, the flower-shaped electrode 31 is the primary working electrode, typically made of a conductive material such as stainless steel or a special alloy, to facilitate cutting and coagulation via high-frequency current during surgery. The design of the flower-shaped electrode 31 allows it to effectively conduct current to the surgical site while maintaining sufficient rigidity for physical cutting. The suction port 311 on the flower-shaped electrode 31 promptly draws blood and residual tissue into the suction channel. It should be noted that the return electrode 32 is located at the bend 20 of the blade assembly 3. This position avoids direct contact with tissue and prevents accidental injury. Furthermore, the return electrode 32 is spaced apart from the flower-shaped electrode 31, preventing contact. This design is intended to form a current loop during surgery. The return electrode 32 serves as the other end of the current loop, working in conjunction with the flower-shaped electrode 31 to complete the electrocuting and electrocoagulation operations required for surgery, thereby preventing short circuits and accidental injury.

[0058] In the embodiments of the present invention, please refer to Figure 3 The outer catheter is located at the loop electrode 32 and has a liquid outlet 321. This outlet 321 allows saline or other cooling liquid to flow out, cooling the surgical area and reducing thermal damage to the tissue. It also provides the necessary environmental conditions for plasma generation during electrode surgery. Furthermore, a gap is provided between the outer blade tube 21 and the isolation tube to form an infusion channel connected to the liquid outlet 321. This allows saline or other electrolyte solutions to be delivered to the blade assembly 3 through the infusion channel.

[0059] In the embodiments of the present invention, please refer to Figure 2 and Figure 3The plasma surgical electrode 100 also includes an insulating tube 5, which is sleeved onto the exterior of the outer blade tube 21. Its primary function is to provide electrical insulation, preventing current from accidentally flowing to other parts of the patient's body during surgery, thereby ensuring surgical safety. The insulating tube 5 can be made of a high-temperature-resistant, biocompatible material, such as Teflon or other medical-grade plastics. Furthermore, the insulating tube 5 has an opening. The exposed end of the outer blade tube 21 forms a return electrode, and a liquid outlet 321 is connected to the outside through the opening. The liquid outlet 321 is part of the return electrode 32 and allows saline or other cooling liquid to flow out, cooling the surgical area and reducing thermal damage to the tissue. The opening allows the cooling liquid to flow out smoothly, while also leaving a portion of the return electrode 32 exposed to the outside, allowing the plasma generated by the flower-shaped electrode 31 during surgery to be promptly directed away from the tissue. It should be noted that the return electrode 32 is located inside the bend 20 to avoid direct contact with the tissue, preventing accidental tissue damage.

[0060] In the embodiments of the present invention, please refer to Figure 1 In order to supply electrolyte solution into the injection channel, the plasma surgical electrode 100 also includes an injection tube 6. One end of the injection tube 6 extends to the interior of the handle 1 and is connected to the injection channel. In this way, an electrolyte solution such as physiological saline can be injected into the injection channel from the injection tube 6, and then flows out from the liquid outlet 321 to the blade assembly 3, thereby providing the blade assembly 3 with the environmental conditions required for generating plasma. In addition, in order to facilitate the control of the flow rate of the solution in the injection channel, a flow control valve is provided on the injection tube 6. The flow control valve is provided on the outside of the injection tube 6. The flow rate inside the injection tube 6 can be controlled by changing the degree of flattening of the injection tube 6, thereby changing the flow rate in the injection channel. Optionally, as Figure 1 As shown, in another embodiment of the present invention, in order to facilitate the connection between the external electrolyte solution supply device and the injection tube 6, the injection tube 6 can also be provided with a Luer adapter, and the Luer adapter is provided at the end of the injection tube 6 away from the knife rod assembly 2. The setting of the Luer adapter can better connect the injection tube 6 with the electrolyte solution supply device, ensure the stability of the joint between the two, and prevent water leakage caused by poor connection.

[0061] In the embodiments of the present invention, please refer to Figure 1The plasma surgical electrode 100 also includes a suction tube 7, which is responsible for sucking blood and residual tissue in real time during the operation to maintain a clear surgical field of view. The plasma surgical electrode 100 also includes a suction tube 7, and one end of the suction tube 7 extends into the interior of the handle 1 and is connected to the suction channel. In this way, blood or residual tissue at the surgical site can be promptly extracted into the suction tube 7 through the suction channel and then discharged from the body, effectively preventing the temperature of blood from rising during the operation and causing unexpected thermal damage to the tissue. At the same time, a clear surgical field of view can help doctors more accurately judge the condition of the tissue, thereby improving the accuracy of the operation.

[0062] In the embodiments of the present invention, please refer to Figure 1 To provide the surgical head assembly 3 with the electrical energy required for the surgical procedure, thereby generating plasma at the blade head assembly 3, the plasma surgical electrode 100 further includes a cable assembly 8, which is connected to the blade head assembly 3 via the handle 1 and the blade rod assembly 2. Specifically, one end of the cable assembly 8 is connected to the external plasma generator, while the other end passes through the interior of the handle 1 and the blade rod assembly 2, electrically connecting to the blade head assembly 3. This cable assembly 8 is responsible for transmitting the high-frequency voltage from the plasma generator to the blade head assembly 3. It is understood that the cable assembly 8 must include at least two electrical conductors, one connecting the flower-shaped electrode 31 and the other connecting the return electrode 32.

[0063] The present invention also provides a plasma surgical device, which includes a plasma surgical electrode 100 and a plasma generator connected to the plasma surgical electrode 100. For example, the plasma surgical electrode 100 can be electrically connected to the plasma generator via a cable assembly 8, and the plasma generator is responsible for providing a high-frequency voltage to the surgical electrode. When voltage is applied to the electrode, an air sheath is formed at the electrode site. When the sheath is broken down, plasma is generated. The plasma obtains energy in the electric field, achieving effects such as cutting, hemostasis, and coagulation. The specific structure of the plasma surgical electrode 100 refers to the above-mentioned embodiment. Since the present plasma surgical device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0064] To enhance surgical safety, plasma surgical equipment can also be equipped with auxiliary devices such as temperature sensors, pressure sensors, and flow controllers. Temperature sensors monitor electrode temperature in real time to prevent tissue damage from overheating; pressure sensors detect pressure between the electrode and tissue to ensure surgical stability; and flow controllers adjust the injection flow rate to optimize surgical outcomes.

[0065] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A plasma surgical electrode, characterized in that: The plasma surgical electrode comprises: handle; a knife bar assembly connected to the handle and forming a suction channel therein; A blade head assembly, comprising a flower-shaped electrode, the flower-shaped electrode being fixedly connected to an end of the blade rod assembly away from the handle, the middle portion of the flower-shaped electrode being concave relative to the periphery toward the suction channel, and the middle portion of the flower-shaped electrode being provided with a suction port communicating with the suction channel; and An anti-blocking member is provided at the suction port and connected to an edge of the suction port to divide the suction port into at least two independently provided sub-ports.

2. The plasma surgical electrode according to claim 1, wherein: The anti-blocking component includes two dividing ribs, which are cross-arranged at the suction port to separate the suction port into four independently arranged sub-ports.

3. The plasma surgical electrode according to claim 2, wherein: The flower-shaped electrode has four electrically connected petal-shaped electrode sheets, and the four petal-shaped electrode sheets are evenly distributed along the circumference of the suction port; the two separating ribs are arranged in a cross or X shape, and the four sub-ports are evenly distributed; and / or, The anti-blocking component and the flower-shaped electrode are integrally formed.

4. The plasma surgical electrode according to claim 1, wherein: The knife bar assembly comprises: An outer blade tube, fixedly connected to the handle; an inner blade tube, disposed inside the outer blade tube, with both ends of the inner blade tube respectively connected to the handle and the flower-shaped electrode, and the suction channel disposed inside the inner blade tube; and An isolation tube is provided between the inner knife tube and the outer knife tube to isolate the inner knife tube from the outer knife tube.

5. The plasma surgical electrode according to claim 4, characterized in that: The knife bar assembly is formed with a bending portion, which bends and extends in an axial direction away from the knife bar assembly, and the outer knife tube, the inner knife tube and the isolation tube are all formed with the bending portion at the end away from the handle, and the knife head assembly is arranged at the bending portion.

6. The plasma surgical electrode according to claim 5, characterized in that: The outer blade tube has an exposed end portion to form a loop electrode. The loop electrode is located at the bent portion and spaced apart from the flower-shaped electrode.

7. The plasma surgical electrode according to claim 6, characterized in that: The outer blade tube is located at the loop electrode and is provided with a liquid outlet, and a gap is provided between the outer blade tube and the isolation tube to form a liquid injection channel connected with the liquid outlet.

8. The plasma surgical electrode according to claim 7, characterized in that: The plasma surgical electrode further includes an insulating tube, which is sleeved on the outside of the outer blade tube, and has an opening. The end of the outer blade tube exposed through the opening constitutes the loop electrode, and the liquid outlet is connected to the outside through the opening; and / or, The plasma surgical electrode further includes an injection tube, which is connected to the handle and communicates with the injection channel through the handle.

9. The plasma surgical electrode according to any one of claims 4 to 8, characterized in that: The plasma surgical electrode further includes a suction tube, which is connected to the handle and communicates with the suction channel through the handle; and / or, The plasma surgical electrode further includes a cable assembly, which is connected to the cutter head assembly via the handle and the cutter rod assembly.

10. A plasma surgical device, characterized in that: The plasma surgery device comprises: The plasma surgical electrode according to any one of claims 1 to 9; and A plasma generator is connected to the plasma surgical electrode.

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