Electrosurgical electrode and processing technology thereof

Abstract

The present invention relates to the field of medical device technology, and specifically includes a blade head, a repeatedly bending area connecting section and a blade tail, wherein the blade tail is connected to one end of the repeatedly bending area connecting section, and the blade head is connected to the other end of the repeatedly bending area connecting section; the upper end of the repeatedly bending area connecting section is connected to the bottom end of the blade tail, and the lower end of the repeatedly bending area connecting section is connected to the blade head; the blade head includes a blade head body and a blade arranged on the blade head body, and a blade tip is provided on the blade. A coating is provided on the blade head except for the blade tip on the blade head body, and the thickness H of the blade tip is 15μm~100μm; the thickness of the blade tip is maintained at 15μm~100μm to ensure a higher current density during use and improve the smoothness of cutting.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an electrosurgery electrode and a processing technology thereof, and in particular to a plasma surgery electrode used in electrosurgery. Background Art

[0002] Traditional surgical blades cut tissue through mechanical force, requiring the blade material to be high-strength and easy to process and shape. The processed blade tip must be sharp, hard, and free of deformation.

[0003] Currently, conventional surgical blades are primarily made of 400-series ferritic and martensitic stainless steels, with 420 ("blade grade") and 430 stainless steel being common. However, these materials have low toughness, are brittle, and are difficult to bend, making them inadequate for doctors' ability to separate localized tissues during use.

[0004] For example, the patent application number is CN2017201134765, and the patent name is: A knife-shaped surgical electrode. The core component of the electrode adopts a split design, including a blade, a blade connector, and an electrode rod. The diameter of the blade connector is 3-5mm, the blade edge width is 0.4mm to 1mm, and the blade edge thickness is less than 0.05mm. The blade base is made of stainless steel, and the surface is electrolytically or mechanically polished to form a bright surface. The outer side of the electrode core component is coated with a high-temperature resistant insulating layer. The insulating layer covers part of the blade, part of the electrode rod, and the entire blade connector. The outer side of the insulating layer is provided with anti-slip protrusions. The surgical blade of the above-mentioned knife-shaped surgical electrode adopts a heat-treated hardened material and introduces an electrolytic polishing process to form a clean blade surface, increase the blade surface hardness, impact resistance, and corrosion resistance, improve the durability of the electrode, and reduce the tissue adhesion of the blade to a certain extent. However, the above-mentioned knife-shaped surgical electrode uses a physical method to apply force to the surgical blade, and the surgical blade cuts tissue under the action of force.

[0005] The efficiency of electrosurgical equipment in cutting tissue is related to the current density, and the current density depends on the contact area between the blade and the tissue. The thinner the tip of the electrode blade, the smaller the area of ​​contact with the tissue during use, the greater the current density, and the higher the cutting efficiency. When the thickness of the edge of the electrode tip is greater than 100μm, the electric field strength at the electrode tip is significantly attenuated. Secondly, the concentrated excitation of current is related to the thickness around the electrode tip, so it is necessary to design a blade slope shape for the electrode edge to ensure the concentrated current density. If a sloped blade shape is designed for soft metal materials and the blade tip thickness is less than 100μm, the blade and surrounding areas are prone to cracking.

[0006] However, the strength of the blade is related to the angle of the slope, which affects both the strength and the concentrated excitation performance of the current. Data show that when the slope angle is 17° to 30°, the overall performance of the blade (sharpness and blade hardness) is better.

[0007] At present, the electrosurgical sheet electrode materials on the market are mainly soft metals (mostly austenitic stainless steel), which can be bent repeatedly and have a flat duck tongue shape (no blade slope shape is designed). The thickness H (including the blade part) is greater than 400μm (such as Figure 1 ), when discharging, the current density at the tip is too small, resulting in poor tissue cutting. In order to improve the cutting efficiency of sheet electrodes, users often need to increase the output power of the surgical electrode host device and increase the output current intensity, but this also increases the degree of thermal damage to the tissue around the cutting area. Secondly, the bendable area of ​​this type of electrode is set in the cutting area of ​​the blade, and repeated bending will change the thickness of the blade (especially for electrodes with a sloped cutting edge), affecting the current release density in the local area and causing uneven cutting effect.

[0008] The traditional manufacturing method for high-strength surgical scalpels (primarily made from 420 and 430 stainless steel) consists of two steps: first, the material is stamped into the blade shape using a mold; second, the blade is ground using a semi-automatic rotary grinding wheel machine to create a sharp edge. However, this traditional grinding wheel method is not suitable for soft metal materials with low hardness and high toughness. During processing, the blade is prone to deformation due to stress, burrs and curling at the blade tip, cracking at the blade tip due to insufficient strength, and rough and uneven ground surfaces, all of which affect the blade's proper function. Furthermore, the grinding wheel grinding process is easily affected by human factors such as loading and unloading, resulting in poor dimensional consistency of the product.

[0009] Therefore, the electrosurgical electrode blades currently on the market cannot be formed into a thinner cutting edge through grinding. Instead, they are mainly formed through die stamping, punching round metal rods into flat blades. However, due to stamping accuracy and safety limit issues, the thickness of the punched blade is 400μm to 500μm, which cannot achieve a thinner blade tip and ensure smooth tissue cutting at low power output. In addition, traditional stamping methods are mostly single-shot stamping modes, which have low operating efficiency and high labor costs, making them unsuitable for mass production.

[0010] In view of the problems of low current release density, limitations in soft metal material processing and low production efficiency in the current existing flat electrodes, it is necessary to design a soft metal surgical electrode and its processing technology that can be repeatedly bent, has a sloped blade shape, a blade tip thickness of 15 to 100 μm, and a region specifically for bending, so as to achieve concentrated current release and efficient cutting during surgery, and bending without affecting the current density performance, and solve the problems of stress deformation, blade tip burrs and curling, blade cracking, rough grinding surface, poor product consistency and continuous stamping production that occur during the size forming process of soft metal material electrodes.

[0011] In summary, the existing electrosurgical electrodes and their processing technology have the following defects: (1) The existing electrosurgical electrode blades are formed by flat stamping. The thickness of the stamped blades is relatively thick, resulting in a low current density during the cutting process, which cannot guarantee the smoothness of tissue cutting at low power output; (2) The bending area is set at the blade head, and repeated bending can easily cause uneven current density in local areas; (3) In order to obtain a larger current density, a grinding wheel is often used to form a thinner cutting blade. However, due to the extrusion force of the interaction between the grinding wheel and the soft metal material, the material undergoes permanent deformation; (4) The blade tip is thin and the material itself has a low hardness. When processing surgical electrodes, burrs and curling are likely to appear on the blade tip; (5) The grinding surface is rough; (6) It is greatly affected by human factors and cannot guarantee the consistency of the finished product size; (7) The blade is set in a slope shape, and the traditional grinding method can easily cause the soft metal blade to crack; (8) The traditional single stamping production method is inefficient and has high labor costs.

[0012] Therefore, a soft metal material with low hardness and high toughness is selected and fabricated into a surgical electrode with a thin, sloped blade. The blade tip thickness is made within 100 μm, which not only meets the requirements for efficient tissue cutting but also allows for repeated bending of the blade. Therefore, the present invention provides an electrosurgical electrode and its processing technology. Summary of the Invention

[0013] In order to solve the above problems in the prior art, an electrosurgical electrode and a processing system and process thereof are proposed.

[0014] The present invention adopts the following technical solutions:

[0015] Provided is an electrosurgical electrode, comprising a blade head, a repeatedly bent region connecting section, and a blade tail, wherein the blade tail is connected to one end of the repeatedly bent region connecting section, and the blade head is connected to the other end of the repeatedly bent region connecting section.

[0016] A limiting step 1 is provided on both sides of the upper part of the knife tail, and the limiting steps 1 on both sides of the upper part of the knife tail form a connecting pin. A positioning hole is provided in the middle part of the knife tail. The upper end of the repeatedly bending area connecting section is connected to the bottom end of the knife tail, and a limiting step 2 is provided at the connection between the upper end of the repeatedly bending area connecting section and the bottom end of the knife tail. A limiting step 2 is provided on both sides of the lower part of the repeatedly bending area connecting section, and the lower end of the repeatedly bending area connecting section is connected to the knife head. Limiting steps 3 are provided on both sides of the lower end of the repeatedly bending area connecting section.

[0017] The cutter head comprises a cutter head body and a blade arranged on the cutter head body, the blade is provided with a blade tip, and the area of ​​the cutter head except the blade tip on the cutter head body is provided with a coating, and the thickness H of the blade tip is 15μm to 100μm.

[0018] Furthermore, the blade is U-shaped as a whole, and the blade includes a blade inclined surface, a blade tip and a blade bottom surface. The blade bottom surface and the bottom surface of the blade head body are on the same plane, the upper end of the blade inclined surface is connected to the top edge of the blade head body, the blade inclined surface and the bottom surface of the blade head body are inclined, and the blade inclined surface and the blade bottom surface are connected through the blade tip.

[0019] Furthermore, the angle between the inclined surface of the blade and the bottom surface of the cutter head body is 17°~30°.

[0020] Furthermore, the blade provided on the cutter head body is a double-sided blade, and the double-sided blade is U-shaped as a whole. The double-sided blade includes an upper inclined surface of the blade, a blade tip and a lower inclined surface of the blade. The upper end of the upper inclined surface of the blade is connected to the top edge of the cutter head body, and the lower end of the lower inclined surface of the blade is connected to the bottom edge of the cutter head body. The lower end of the upper inclined surface of the blade and the upper end of the lower inclined surface of the blade are connected through the blade tip, and the end face of the blade tip is arranged perpendicular to the cutter head body.

[0021] Furthermore, the angle between the upper inclined surface of the blade and the lower inclined surface of the blade is 17°~60°.

[0022] Furthermore, the blade head is U-shaped, a blade tip is provided at the outer edge of the blade head body, a double-sided blade is provided on the blade head body, the double-sided blade includes an upper blade surface and a lower blade surface, a blade tip is provided at the connection between the upper blade surface and the lower blade surface, the double-sided blade is U-shaped as a whole, and the cross-section of the whole formed by the blade head body and the double-sided blade is diamond-shaped.

[0023] Furthermore, the angle between the upper blade surface and the lower blade surface is 17° to 60°.

[0024] Furthermore, the blade head includes a blade head body, which is U-shaped. The blade head body includes an upper clamping part, a blade tip, and a lower clamping part. The blade tip is a surgical electrode blade, and the blade tip is arranged between the upper clamping part and the lower clamping part. The width of the blade tip is greater than the width of the upper clamping part and the lower clamping part, and the blade tip extends to the outside of the upper clamping part and the lower clamping part.

[0025] Furthermore, the coating is sprayed using ceramic coating, oily coating or inorganic nano coating.

[0026] Furthermore, the surgical electrode is integrally stamped from a soft metal material.

[0027] An electrosurgical plasma surgery electrode is provided with the electrosurgical surgery electrode described above.

[0028] The existing flat electrodes have the problems of low current release density, limitations in processing soft metal materials, and low production efficiency.

[0029] The present invention provides a processing system for processing the electrosurgical electrode, the processing system including a processing mold and processing equipment, the processing equipment including an intelligent CNC roller feeder, an intelligent CNC conveyor A, a stamping and forming area, an intelligent CNC conveyor B, a double-sided polishing machine and a coating sprayer, the intelligent CNC roller feeder is arranged on the left side of the intelligent CNC conveyor A, the stamping and forming area is provided on the right side of the intelligent CNC conveyor A, and the intelligent CNC conveyor B is provided on the right side of the stamping and forming area.

[0030] The intelligent CNC roller feeder includes a circular cargo roller, a T-shaped support, and a sensor power control motor. The T-shaped support is provided with a circular cargo roller, and the circular cargo roller is provided with a coil formed by sheet metal of soft metal material. The driving end of the circular cargo roller is connected to the output end of the sensor power control motor.

[0031] The stamping and forming area includes a stamping machine and a processing die disposed within the working area of ​​the stamping machine. The stamping machine is provided with a stamping power output terminal, and the working area is provided with a work platform. The processing die includes an upper die and a lower die. The top of the upper die is connected to the stamping power output terminal, and the lower die is mounted on the work platform via fastening bolts.

[0032] The lower punch is provided with a plurality of mounting grooves, and the mounting grooves are provided with rolling rollers, mounting frames, springs and signal triggers arranged at the bottom of the mounting grooves in sequence from bottom to bottom. The upper end of the spring is provided with a mounting frame, and the mounting frame is provided with a rolling roller, and the rolling roller rolls on the mounting frame. The lower end of the spring is provided with a signal trigger.

[0033] The upper punch includes a mold locating pin A, a mold locating pin B, a circular punching knife, a locating pin A, a locating pin B, a locating pin C, a locating pin D, a locating pin E, a left shape punching knife, a right shape punching knife, a blade forming punching knife 1, a blade cutting knife, a blade forming punching knife 2, and a connector punching knife.

[0034] The mold locating pin A is arranged at the upper left portion of the bottom of the upper punch, and the mold locating pin B is arranged at the lower right portion of the bottom of the upper punch.

[0035] The circular punching knife, positioning pin A, positioning pin B, positioning pin C, positioning pin D, and positioning pin E are arranged on the same horizontal line.

[0036] A left outer shape stamping knife is provided on one side of the positioning pin A, and the left outer shape stamping knife protrudes from the lower bottom surface of the upper punch die. The left outer shape stamping knife includes a left outer shape stamping knife 1 and a left outer shape stamping knife 2. The left outer shape stamping knife 1 is arranged on the left side of the positioning pin A. The left outer shape stamping knife 1 is used for stamping the left outer shape of the upper half of the connecting section of the blade tail and the repeated bending area to form a limiting step 1 and a limiting step 2. The right side surface of the left outer shape stamping knife 1 is adapted to the outer shape of the blade tail and the upper half of the connecting section of the repeated bending area of ​​the electrosurgical electrode.

[0037] A left outer shape stamping knife 2 is provided below the left outer shape stamping knife 1, and a gap is provided between the lower part of the left outer shape stamping knife 1 and the upper part of the left outer shape stamping knife 2 to form a connecting piece.

[0038] The left outer shape stamping knife 2 is used for stamping the lower half of the blade head and the repeatedly bending area connecting section to form the limiting step 3 and the blade head. The right side surface of the left outer shape stamping knife 2 is adapted to the blade head and the lower half of the repeatedly bending area connecting section of the electrosurgical electrode.

[0039] A right outer shape stamping knife is provided on one side of the positioning pin B, and the right outer shape stamping knife protrudes from the lower bottom surface of the upper punch die. The right outer shape stamping knife includes right outer shape stamping knife 1 and right outer shape stamping knife 2. The right outer shape stamping knife 1 is arranged on the right side of the positioning pin B. The right outer shape stamping knife 1 is used for stamping the outer shape of the upper half of the right part of the connecting section of the blade tail and the repeated bending area to form limiting steps 1 and limiting steps 2. The left side of the right outer shape stamping knife 1 is adapted to the outer shape of the blade tail and the upper half of the connecting section of the repeated bending area of ​​the electrosurgical electrode.

[0040] A right outer shape stamping knife 2 is provided below the right outer shape stamping knife 1, and a gap is provided between the lower part of the right outer shape stamping knife 1 and the upper part of the right outer shape stamping knife 2 to form a connecting piece.

[0041] The right outer shape stamping knife 2 is used for stamping the lower half of the connecting section of the blade head and the repeatedly bending area to form the limiting step 3 and the blade head. The left side of the right outer shape stamping knife 2 is adapted to the outer shape of the blade head and the lower half of the connecting section of the repeatedly bending area of ​​the electrosurgical electrode.

[0042] The positioning pin C is arranged on the upper part of the blade forming stamping knife 1, and the blade forming stamping knife 1 protrudes from the lower surface of the upper punch die. The blade forming stamping knife 1 includes an upper blade forming stamping knife 1 and a lower blade forming stamping knife 1. A stamping step is provided at the connection between the upper blade forming stamping knife 1 and the lower blade forming stamping knife 1. The lower blade forming stamping knife 1 is provided with a groove, and the groove is adapted to the cutter head body, the blade and the blade tip. The lower blade forming stamping knife 1 is higher than the protruding height of the upper blade forming stamping knife 1 to form a stamping step.

[0043] The positioning pin D is arranged above the cutter head, and the cutter head protrudes from the lower bottom surface of the upper punch. The cutter head is provided with a through groove that matches the three shapes of the cutter head and the limiting step, and the positioning pin D is arranged above the through groove.

[0044] The positioning pin E is arranged on the upper part of the blade forming stamping knife 2, and the blade forming stamping knife 2 has the same structure as the blade forming stamping knife 1.

[0045] The connecting part punching knife protrudes from the lower bottom surface of the upper punch die. The connecting part punching knife is used to punch and cut a connecting part with a gap between the upper part of the left outer shape punching knife one and the lower part of the left outer shape punching knife two. The connecting part punching knife is used to punch and cut a connecting part with a gap between the upper part of the right outer shape punching knife one and the lower part of the right outer shape punching knife two.

[0046] The lower punch includes a circular blanking hole, a mold positioning hole A, a mold positioning hole B, a positioning hole A, a positioning hole B, a positioning hole C, a positioning hole D, a positioning hole E, a stamping shape left blanking hole, a stamping shape right blanking hole, a cutter head cutting blanking hole, and a blade finished product blanking hole.

[0047] The circular blanking hole, positioning hole A, positioning hole B, positioning hole C, positioning hole D, and positioning hole E are arranged on the same horizontal line, and the circular blanking hole, positioning hole A, positioning hole B, positioning hole C, positioning hole D, and positioning hole E are arranged on the lower punch from left to right in sequence.

[0048] The mold positioning hole A is arranged at the lower left portion of the bottom of the lower punch, and the mold positioning hole B is arranged at the upper right portion of the bottom of the upper punch.

[0049] The circular blanking holes, positioning holes A, positioning holes B, positioning holes C, positioning holes D, and positioning holes E are respectively adapted and corresponded to the circular punching knife, positioning pins A, positioning pins B, positioning pins C, positioning pins D, and positioning pins E arranged on the lower surface of the upper punch die.

[0050] The left blanking hole of the stamped shape is arranged on the left side of the positioning hole A, and the left blanking hole of the stamped shape is adapted to the left shape stamping knife. The right blanking hole of the stamped shape is arranged on the right side of the positioning hole B, and the right blanking hole of the stamped shape is adapted to the right shape stamping knife. The blade cutting blanking hole is arranged above the positioning hole D, and the blade cutting blanking hole is adapted to the blade cutting knife. A blade finished blanking hole is provided on the right side of the positioning hole E, and the blade finished blanking hole is adapted to the shape of the electrosurgical electrode.

[0051] Traditional stamping methods are mostly single-shot stamping modes. This processing technology has low efficiency and high labor costs and is not suitable for mass production.

[0052] The present invention provides a process for processing an electrosurgical electrode, comprising the following process steps:

[0053] S1. Punching a circular positioning hole for the surgical electrode blade: In step S1, the upper punch presses downward, triggering a spring-loaded trigger and stopping the feeder and conveyor. The upper punch's circular punching blade punches the sheet metal into a circular, hollow hole. Waste material falls by gravity into a waste bin on the floor. After the upper punch returns, the trigger is deactivated, and the feeder and conveyor transport the sheet metal with the circular hole to the next process.

[0054] S2. Stamping the left external shape of the connecting section between the cutter head and the repeatedly bent area: In the step S2, the left external shape of the blade is first stamped, and the positioning pin A in the upper punch die is used to position the circular hole of the sheet metal after the S1 process. The sheet metal is stamped by the left external shape stamping cutter, and the sheet metal material is stamped into the left blanking hole of the stamped external shape. The waste material falls from the hole into the waste box, and the semi-finished product after stamping is sent to the next process after being unloaded by the stamping machine.

[0055] S3. Punching the right outer shape of the connecting section between the punch head and the repeatedly bent area: Use the right outer shape punching cutter to punch the right shape of the blade on the semi-finished product punched out in step S2. When the upper punch die descends for punching, the sheet metal is positioned with the positioning pin B. The punched sheet metal material falls from the right blanking hole of the punching outer shape into the waste box. The punched semi-finished product is sent to the next process together with the sheet metal through the connecting piece.

[0056] The above three steps of stamping can form the appearance of the blade, including: stamping positioning holes, blade head shape, repeatedly bending area connecting section and the limiting step and connecting pin at the blade tail.

[0057] S4, stamping to form a blade slope: The blade shape punched out in step S3 is stamped out using a blade forming stamping tool to form a blade slope. Before stamping, the blade positioning hole and the lower punch positioning hole C are positioned with a positioning pin C. The bottom of the blade forming part and the tail end face are kept in the same plane, and the upper end face of the blade forming part is higher than the tail end plane, forming a blade surface step. After stamping, the blade head forms a blade surface. Due to stamping accuracy issues, excess flash remains after one stamping, forming a blade step. The width and thickness of the blade head exceed the set size range, and the size of the blade tail part remains unchanged.

[0058] S5. Trimming Exceeding the Blade Width: The blade head punched in step S4 is punched and trimmed using a blade cutter. The trimmed scrap falls through the blade head's cutting hole into a scrap bin. The trimmed blade head width is within the set dimensional range, but the resulting blade tip thickness exceeds the set dimensional range by 500-800 μm. The dimensions of the blade tail and the connecting section of the repeated bending area remain unchanged. The trimmed semi-finished product is then transported to the next process along with the sheet metal via connectors.

[0059] S6. Secondary stamping to thin the blade edge: The blade tip, trimmed in step S5, is subjected to a secondary stamping process using blade forming stamping tool 2 to form a sharp edge. Blade forming stamping tool 2 has the same structure as blade forming stamping tool 1 in S4. Before stamping, it is positioned with the upper die positioning pin E. After stamping, the tip of the blade has a thickness of 100-200 μm. The blade tip thickness continues to increase, exceeding the blade tail thickness, forming a step at the connection between the blade tip and the repeated bending area. After unloading the punch, the semi-finished product is transported along with the sheet metal to the next step, S7.

[0060] S7. Punching the blade and the sheet metal connector: The blade punched in step S6 is punched using a connector punching knife. The punching knife acts directly on the blade base position and quickly punches the connector through high pressure. The finished blade falls from the finished blade blanking hole into the finished product box, and the sheet metal waste is output from the intelligent CNC conveyor B.

[0061] S8, double-sided polishing to finely refine the blade edge into a sharp blade: In the step S8: the finished blade is polished on both the upper and lower surfaces on a double-sided polishing machine, and the finished blade is placed in the middle positioning fixture. The polishing time, rotation speed and polishing pressure are set through the control panel. The polishing pressure is mainly formed by the sliding upper polishing disc squeezing the finished blade, and the up and down movement of the upper polishing disc is controlled by the control panel. The polishing process is divided into two steps: first, the upper and lower surfaces are polished at the same time. Since the contact area of ​​the upper surface is small and the polishing speed is fast, the polishing of the upper surface is stopped when the blade head and the blade tail are in the same plane. Then, the lower surface is polished separately until the blade head width is within the set size range and the blade tip thickness is 15μm to 100μm.

[0062] S9, spray coating: spray the blade in step S8 with a coating machine.

[0063] Compared with the prior art, the electrosurgical motor of the present invention has the following beneficial effects:

[0064] The electrosurgical electrode of the present invention is formed by integral stamping. The soft metal material can be bent repeatedly during use, making it convenient for the operator to use it when bending local tissue areas. The traditional flat electrosurgical blade is made into a blade with a sloped edge shape, so that the thickness of the blade tip is maintained at 15μm to 100μm, ensuring a higher current density during use and improving the smoothness of cutting.

[0065] In order to further ensure the strength of the blade and the concentrated release of current during cutting, according to the different structures of the electrosurgical electrode of the present invention, the angle α between the inclined surface of the blade and the bottom surface of the blade body is 17°~30°; the angles β and θ between the upper inclined surface of the blade and the lower inclined surface of the blade are 17°~60°; and the angle between the upper blade surface and the lower blade surface is 17°~60°.

[0066] The blade design on the blade head body of three structures of the electrosurgical electrode described in the present invention is U-shaped, and the three sides of the blade are connected by arc planes, which can ensure that the user can operate at multiple angles and avoid operational inconvenience caused by uncomfortable position and angle.

[0067] To cut and coagulate localized tissue, operators often need to bend surgical electrodes at a certain angle. Repeated bending of the blade tip can easily cause the cutting edge to crack, affecting cutting effectiveness. Therefore, a repeatedly bent section is designed at the rear of the blade tip. For optimal performance, this section is 5mm to 15mm long, allowing the operator to bend it during use without affecting cutting results.

[0068] The electrosurgical electrode blade of the present invention is provided with a circular positioning hole to facilitate subsequent positioning during stamping. Two upper side portions of the blade are provided with limiting steps, which form connecting pins that can be easily inserted into the grooves of the thin metal tubes to conduct electricity. The limiting steps also serve to control the insertion depth of the blade.

[0069] The traditional processing technology uses the method of grinding the blade only for high-strength and high-hardness metal materials, so the blade edge is prone to curling and cracking when grinding soft metal materials and metal materials with medium hardness; compared with the traditional surgical electrode processing technology, the present invention provides a processing technology for electrosurgical surgical electrodes that combines surgical electrode blade stamping and double-sided polishing to achieve the blade shape and size requirements of soft metal materials and metal materials with medium hardness.

[0070] The use of processing mold stamping eliminates interference from human factors and other factors, and can achieve product size consistency. At the same time, the processing system of the electrosurgical electrode described in the present invention abandons the traditional single stamping mode through the continuous stamping system, so that the stamping production is continuous, which significantly improves production efficiency and reduces labor costs.

[0071] The processing technology for electrosurgical electrodes described in the present invention uses high pressure to instantly impact the material, causing the material to deform within the mold cavity to form a cutting edge, while the surface roughness of the material is not affected and the metallic luster is still maintained. At the same time, regular inspection and maintenance of the mold and equipment can ensure a high product qualification rate and avoid the phenomenon of soft metal blades cracking due to insufficient strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 This is a schematic diagram of the structure of a surgical electrode in the prior art.

[0073] Figure 2 It is a schematic diagram of the three-dimensional structure of the electrosurgical electrode of the present invention.

[0074] Figure 3 It is a schematic diagram of the three-dimensional structure of the electrosurgical electrode described in Example 1 and Example 2 of the present invention.

[0075] Figure 4 It is a schematic diagram of the planar structure of the electrosurgical electrodes described in Examples 1 and 2 of the present invention.

[0076] Figure 5 This is a schematic diagram of the bottom-up structure of the electrosurgical electrode described in Example 2 of the present invention.

[0077] Figure 6 3D schematic diagram of the electrosurgical electrode according to Example 3 of the present invention.

[0078] Figure 7 It is a schematic diagram of the front view structure of the electrosurgical electrode described in Example 3 of the present invention.

[0079] Figure 8 yes Figure 7 Schematic diagram of the cross-sectional structure of the AA portion of the electrosurgical electrode described in.

[0080] Figure 9 It is a side view structural diagram of the electrosurgical electrode described in Example 3 of the present invention.

[0081] Figure 10 It is a schematic diagram of the three-dimensional structure of the electrosurgical electrode described in Example 4 of the present invention.

[0082] Figure 11 It is a schematic diagram of the front view structure of the electrosurgical electrode described in Example 4 of the present invention.

[0083] Figure 12 It is a schematic diagram of the cross-sectional structure of the upper blade surface and the lower blade surface described in Example 4 of the present invention.

[0084] Figure 13 It is a side view structural diagram of the electrosurgical electrode described in Example 4 of the present invention.

[0085] Figure 14 It is a schematic diagram of the three-dimensional structure of the electrosurgical electrode described in Example 5 of the present invention.

[0086] Figure 15 It is a schematic diagram of the front view structure of the electrosurgical electrode described in Example 5 of the present invention.

[0087] Figure 16 It is a schematic diagram of the cross-sectional structure of the upper cutter head described in Example 5 of the present invention.

[0088] Figure 17 It is a side view structural diagram of the electrosurgical electrode described in Example 5 of the present invention.

[0089] Figure 18 Schematic diagram of the processing system of the electrosurgical electrode of the present invention.

[0090] Figure 19 This invention Figure 18 Enlarged schematic diagram of part B in the middle.

[0091] Figure 20 It is a schematic diagram of the three-dimensional assembly structure of the processing mold of the present invention.

[0092] Figure 21 Schematic diagram of the cross section of the blade discharge area of ​​the present invention.

[0093] Figure 22 1 is a line relationship diagram of the electric field E and the blade tip thickness H when L is set to 8.469 mm and U is set to 1250 V for the surgical electrode of the present invention, the horizontal axis represents the blade tip thickness H, the vertical axis represents the electric field E, and the electric field E is set to 1250 V.

[0094] Figure 23 The horizontal axis represents the thickness H of the blade tip, the vertical axis represents the electric field E, and the line relationship diagram of the electric field E and the thickness H of the blade tip is shown.

[0095] Figure 24 It is a schematic diagram of the processing process flow of the electrosurgical electrode of the present invention.

[0096] Figure 25 Schematic diagram of the blade of the electrosurgical electrode of the present invention.

[0097] In the attached figure:

[0098] 100. Cutting head, 101. Connecting section of the repeatedly bent area, 102. Cutting tail, 103. Limiting step 1, 104. Connecting pin, 105. Cutting head body bottom surface, 106. Positioning hole, 107. Limiting step 2, 108. Limiting step 3, 109. Cutting head body, 110. Blade, 111. Coating, 112. Blade tip, 113. Blade inclined surface, 114. Blade bottom surface, H. Blade tip thickness, 115. Blade upper inclined surface, 116. Blade lower inclined surface, 117. Upper blade surface, 118. Lower blade surface, 119. Upper clamping portion, 120. Lower clamping portion;

[0099] 200. Intelligent CNC Roller Feeder, 201. Intelligent CNC Conveyor A, 202. Stamping and Forming Area, 203. Intelligent CNC Conveyor B, 204. Double-Sided Polishing Machine, 205. Coating Sprayer, 206. Work Platform, 207. Processing Die, 208. Upper Die, 209. Lower Die, 210. Stamping Machine, 211. Mounting Slot, 212. Roller, 213. Mounting Bracket, 214. Spring, 215. Signal Trigger, 216. Die Locating Pin A, 217. Die Locating Pin B, 218. Circular Punching Knife, 219. Locating Pin A, 220. Locating Pin B, 221. Locating Pin C, 222. Locating Pin D, 223. Locating Pin E, 224. Left Outer Shape stamping knife, 225. Right shape stamping knife, 226. Blade forming stamping knife one, 227. Blade cutting knife, 228. Blade forming stamping knife two, 229. Connector stamping knife, 230. Left shape stamping knife one, 231. Left shape stamping knife two, 232 Right shape stamping knife one, 233. Right shape stamping knife two, 234. Round blanking hole, 235. Die positioning hole A, 236. Die positioning hole B, 237. Positioning hole A, 238. Positioning hole B, 239. Positioning hole C, 240. Positioning hole D, 241. Positioning hole E, 242. Stamping shape left blanking hole, 243. Stamping shape right blanking hole, 244. Blade cutting blanking hole, 245. Finished blade blanking hole. DETAILED DESCRIPTION

[0100] The present invention is further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0101] Example 1

[0102] like Figure 2As shown, an electrosurgical electrode is provided, comprising a blade head 100, a repeatedly bending area connecting section 101 and a blade tail 102, wherein the blade tail 102 is connected to one end of the repeatedly bending area connecting section 101, and the blade head 100 is connected to the other end of the repeatedly bending area connecting section 101.

[0103] The upper sides of the blade tail 102 are provided with limiting steps 103, and the limiting steps 103 on both sides of the upper side of the blade tail 102 form a connecting pin 104. The middle part of the blade tail 102 is provided with a positioning hole 106. The upper end of the repeatedly bending area connecting section 101 is connected to the bottom end of the blade tail 102, and the connection between the upper end of the repeatedly bending area connecting section 101 and the bottom end of the blade tail 102 is provided with a limiting step 2 107. The lower sides of the repeatedly bending area connecting section 101 are provided with limiting steps 2 107. The lower end of the repeatedly bending area connecting section 101 is connected to the blade head 100, and the lower end of the repeatedly bending area connecting section 101 is provided with limiting steps 3 108.

[0104] The cutting head 100 includes a cutting head body 109 and a blade 110 disposed on the cutting head body 109. The blade 110 is provided with a blade tip 112. The cutting head 100 is provided with a coating 111 in all areas except the blade tip 112 on the cutting head body 109. The coating 111 is sprayed with a ceramic coating 111, an oily coating 111, or an inorganic nano-coating. When the thickness H of the blade tip 112 is 15 μm, 37 μm, 45 μm, 50 μm, 51 μm, 65 μm, or 100 μm, the current density is concentrated, the current density is high, and the cutting efficiency is high. When the thickness H of the blade tip 112 is 45 μm, the cutting efficiency is particularly significant.

[0105] Example 2

[0106] like Figures 2 to 5 As shown, based on Example 1, the blade 110 is U-shaped as a whole, and the blade 110 includes a blade inclined surface 113, a blade tip 112 and a blade bottom surface 114. The cross-section of the blade 110 in the direction perpendicular to the blade bottom surface 114 is a right triangle, but a blade tip 112 is provided at one of the acute angles. The end face of the blade tip 112 is perpendicular to the bottom surface of the blade 110 body, and the blade bottom surface 114 and the bottom surface 105 of the cutter head body are in the same plane. The upper end of the blade inclined surface 113 is connected to the top edge of the cutter head body 109, and the blade inclined surface 113 is inclined to the bottom surface 105 of the cutter head body. The blade inclined surface 113 and the blade bottom surface 114 are connected through the blade tip 112. The angle α between the blade inclined surface 113 and the blade bottom surface 114 or the bottom surface 105 of the cutter head body is 17°~30°.

[0107] Example 3

[0108] On the basis of Example 1, Figure 6 and 7 The blade 110 provided on the cutter head body 109 is a double-sided blade 110, and the double-sided blade 110 is U-shaped as a whole. The double-sided blade 110 is arranged on the side of the cutter head body 109, so that the lower part of the cutter head body 109 is arranged in the double-sided blade 110 which is U-shaped as a whole. Figure 8 and 9 The double-sided blade 110 includes an upper blade inclined surface 115, a blade tip 112, and a lower blade inclined surface 116. The upper end of the upper blade inclined surface 115 is connected to the top edge of the blade head body 109, and the lower end of the lower blade inclined surface 116 is connected to the bottom edge of the blade head body 109. The lower end of the upper blade inclined surface 115 and the upper end of the lower blade inclined surface 116 are connected by the blade tip 112. The end surface of the blade tip 112 is perpendicular to the blade head body 109. The angle β between the upper blade inclined surface 115 and the lower blade inclined surface 116 is 17° to 60°.

[0109] Example 4

[0110] like Figures 10-13 As shown, on the basis of Example 1, the cutter head 100 is U-shaped, and a blade tip 112 is provided at the outer edge of the cutter head body 109. A double-sided blade 110 is provided on the cutter head body 109. The bottom of the double-sided blade 110 is arc-shaped. The double-sided blade 110 includes an upper blade surface 117 and a lower blade surface 118. The upper end of the upper blade surface 117 and the connection between the upper blade surface 117 and the lower blade surface 118 are provided with a blade tip 112. The double-sided blade 110 is U-shaped as a whole, as shown in FIG. Figure 12 As shown, the cross section of the whole formed by the blade body 109 and the double-sided blade 110 is rhombus-shaped, and the two diagonal corners of the rhombus are provided with blade tips 112. The angle θ between the upper blade surface 117 and the lower blade surface 118 is 17° to 60°.

[0111] Example 5

[0112] like Figures 14-17As shown, based on Example 1, the blade head 100 includes a blade head body 109, and the blade head body 109 is U-shaped. The blade head body 109 includes an upper clamping portion 119, a blade tip 112, and a lower clamping portion 120. The blade tip 112 is a surgical electrode blade. The blade tip 112 is arranged between the upper clamping portion 119 and the lower clamping portion 120. The width of the blade tip 112 is greater than the width of the upper clamping portion 119 and the lower clamping portion 120, and the blade tip 112 extends to the outside of the upper clamping portion 119 and the lower clamping portion 120.

[0113] like Figure 21 In order to better verify the beneficial effects of the structures of the surgical electrodes described in Examples 1 to 5, the following experimental data are provided as further illustrations;

[0114] The relationship between the electric field E of the surgical electrode tip in a conductive liquid environment (which can also refer to the environment where the surgical electrode tip contacts the tissue) and the electrode potential U, radius r0, and length L is as follows:

[0115] ;

[0116] Where: E is the electric field, unit: V / mm (volt per millimeter); U is the electric potential, unit: V (volt); Figure 21 As shown in the figure, L is the length of the electrode, that is, the length of the contact between the blade of the surgical electrode and the conductive liquid, unit: mm (millimeter); r0 is the radius of the electrode, unit: mm (millimeter). The threshold electric field requirement for breaking through the liquid ionization is 10 4 ~10 5 V / mm, minimum value is 10 4 V / mm.

[0117] When L is set to 8.469 mm and U is set to 1250 V, the horizontal axis represents the blade tip thickness H (unit: μm, micrometer), and the vertical axis represents the electric field E. The line relationship diagram between the electric field E and the blade tip thickness H is shown in Figure 22 The values ​​of the electric field E and the blade tip thickness H are shown in Table 1.

[0118] Table 1

[0119]

[0120] When the blade tip thickness H is less than 15μm, the strength of the surgical electrode will be insufficient, which will easily lead to blade curling. When the blade tip thickness H is greater than 100μm, the surgical electrode cannot generate plasma in the conductive liquid, resulting in the inability of the surgical electrode to cut. Figure 22 As shown in Table 1, the surgical electrode of the present invention has the best effect when the thickness H of the blade tip is 15 μm to 100 μm.

[0121] In order to further verify the numerical range of the thickness H of the blade tip of the surgical electrode of the present invention, the setting range of L is: 3 mm to 15 mm, the setting range of U is: 1000 V to 1250 V, r0 = X / 2π mm, and H is the thickness of the blade tip;

[0122] The blade discharge area surface can be approximately regarded as the shape of a cylinder with a radius of r0 that is expanded. When L is set to be 8.5 mm, and the potential U of the surgical electrode blade is set to different values ​​of 1250 V, 1100 V, and 1000 V respectively.

[0123] The blade discharge area surface can be approximately regarded as the shape of a cylinder with a radius of r0 that is unfolded. When the lengths of L are set to 3mm, 5mm, 12mm, and 15mm, and the surgical electrode blade is set to the same potential U of 1250V.

[0124] The blade discharge area surface can be approximately regarded as the shape of a cylinder with a radius of r0 that is unfolded. When the lengths of L are set to 3mm, 5mm, 12mm, and 15mm, and the surgical electrode blade is set to the same potential U of 1000V.

[0125] The line graph of the electric field E and the blade tip thickness H is as follows: Figure 23 As shown, the values ​​of the electric field E and the blade tip thickness H are shown in Tables 2 and 3;

[0126] Table 2

[0127]

[0128] Table 3

[0129]

[0130] The above data indicates that when the blade tip thickness H is ≤ 100 μm, the electric field strength reaches the threshold for liquid ionization. The smaller H, the higher the electric field strength. However, considering the mechanical effects of the blade tip, excessively thin blades can result in curling and burrs. Therefore, the optimal thickness H of the blade tip for the surgical electrode of the present invention is set between 15 μm and 100 μm.

[0131] like Figures 18-20As shown, the present invention provides a processing system for processing the electrosurgical electrode, the processing system is used to process the electrosurgical electrode described in the above-mentioned embodiment 1, the processing system is used for the electrosurgical motor, the processing system includes a processing mold 207 and processing equipment, the processing equipment includes an intelligent CNC roller feeder 200, an intelligent CNC conveyor A201, a stamping and forming area 202, an intelligent CNC conveyor B203, a double-sided polishing machine 204 and a coating sprayer 205, the intelligent CNC roller feeder 200 is arranged on the left side of the intelligent CNC conveyor A201, the stamping and forming area 202 is provided on the right side of the intelligent CNC conveyor A201, and the intelligent CNC conveyor B203 is provided on the right side of the stamping and forming area 202.

[0132] The intelligent CNC roller feeder 200 includes a circular cargo roller, a T-shaped support, and a sensor power control motor. The T-shaped support is provided with a circular cargo roller, and the circular cargo roller is provided with a coil formed by sheet metal of soft metal material. The driving end of the circular cargo roller is connected to the output end of the sensor power control motor.

[0133] The stamping and forming area 202 includes a stamping machine 210 and a processing die 207 disposed in the working area of ​​the stamping machine 210. The stamping machine 210 is provided with a stamping power output terminal. A work platform 206 is provided in the working area. The work platform 206 is provided with a waste collection port. A waste collection box is provided below the waste collection port. The processing die 207 includes an upper die 208 and a lower die 209. The top of the upper die 208 is connected to the stamping power output terminal, and the lower die 209 is set on the work platform 206 by fastening bolts.

[0134] The lower punch 209 is provided with a plurality of mounting grooves 211, and the mounting grooves 211 are provided with rolling rollers 212, mounting frames 213, springs 214 and signal triggers 215 arranged at the bottom of the mounting grooves 211 from top to bottom. The upper end of the spring 214 is provided with a mounting frame 213, and the mounting frame 213 is provided with a rolling roller 212. The rolling roller 212 rolls on the mounting frame 213, and the lower end of the spring 214 is provided with a signal trigger 215.

[0135] The upper punch 208 includes a mold positioning pin A216, a mold positioning pin B217, a circular punching knife 218, a positioning pin A219, a positioning pin B220, a positioning pin C221, a positioning pin D222, a positioning pin E223, a left outer shape punching knife 224, a right outer shape punching knife 225, a blade forming punching knife 1 226, a blade cutting knife 227, a blade forming punching knife 2 228, and a connecting part punching knife 229.

[0136] The mold positioning pin A216 is set at the upper left part of the bottom of the upper punch 208, and the mold positioning pin B217 is set at the lower right part of the bottom of the upper punch 208.

[0137] The circular punching knife 218, positioning pin A219, positioning pin B220, positioning pin C221, positioning pin D222, and positioning pin E223 are arranged on the same horizontal line.

[0138] A left outer shape stamping knife 224 is provided on one side of the positioning pin A219, and the left outer shape stamping knife 224 protrudes from the lower bottom surface of the upper punch 208. The left outer shape stamping knife 224 includes a left outer shape stamping knife 1 230 and a left outer shape stamping knife 2 231. The left outer shape stamping knife 1 230 is provided on the left side of the positioning pin A219. The left outer shape stamping knife 1 230 is used for stamping the left outer shape of the upper half of the blade tail 102 and the repeatedly bending area connecting section 101 to form a limiting step 103 and a limiting step 2 107. The right side of the left outer shape stamping knife 1 230 is adapted to the outer shape of the blade tail 102 and the upper half of the repeatedly bending area connecting section 101 of the electrosurgical electrode.

[0139] A left outer shape punching knife 231 is provided below the left outer shape punching knife 1 230 , and a gap is provided between the lower portion of the left outer shape punching knife 1 230 and the upper portion of the left outer shape punching knife 2 231 to form a connecting piece.

[0140] The left outer shape stamping knife 231 is used for stamping the blade head 100 and the lower half of the repeatedly bending area connecting section 101 to form the limiting step 3 108 and the blade head 100. The right side surface of the left outer shape stamping knife 231 is adapted to the outer shape of the blade head 100 and the lower half of the repeatedly bending area connecting section 101 of the electrosurgical electrode.

[0141] A right outer shape stamping knife 225 is provided on one side of the positioning pin B220, and the right outer shape stamping knife 225 protrudes from the lower bottom surface of the upper punch 208. The right outer shape stamping knife 225 includes a right outer shape stamping knife 1 232 and a right outer shape stamping knife 2 233. The right outer shape stamping knife 1 232 is arranged on the right side of the positioning pin B220. The right outer shape stamping knife 1 232 is used for stamping the right outer shape of the blade tail 102 and the upper half of the repeatedly bending area connecting section 101 to form a limiting step 103 and a limiting step 2 107. The left side of the right outer shape stamping knife 1 232 is adapted to the outer shape of the blade tail 102 and the upper half of the repeatedly bending area connecting section 101 of the electrosurgical electrode.

[0142] A right outer shape punching knife 233 is provided below the right outer shape punching knife 1 232 , and a gap is provided between the lower portion of the right outer shape punching knife 1 232 and the upper portion of the right outer shape punching knife 2 233 to form a connecting piece.

[0143] The right outer shape stamping knife 233 is used for stamping the blade head 100 and the lower half of the repeatedly bending area connecting section 101 to form the limiting step 3 108 and the blade head 100. The left side of the right outer shape stamping knife 233 is adapted to the outer shape of the blade head 100 and the lower half of the repeatedly bending area connecting section 101 of the electrosurgical electrode.

[0144] The positioning pin C221 is arranged on the upper part of the blade forming stamping knife 226, and the blade forming stamping knife 226 protrudes from the lower surface of the upper punch 208. The blade forming stamping knife 226 includes an upper blade forming stamping knife 226 and a lower blade forming stamping knife 226. A stamping step is provided at the connection between the upper blade forming stamping knife 226 and the lower blade forming stamping knife 226. The lower blade forming stamping knife 226 is provided with a groove, and the groove is adapted to the cutter head body 109, the blade 110 and the blade tip 112. The lower blade forming stamping knife 226 is higher than the protruding height of the upper blade forming stamping knife 226 to form a stamping step.

[0145] The positioning pin D222 is arranged above the blade cutting knife 227, and the blade cutting knife 227 protrudes from the lower bottom surface of the upper punch 208. The blade cutting knife 227 is provided with a through groove that is compatible with the shape of the blade 100 and the limiting step 108, and the positioning pin D222 is arranged above the through groove.

[0146] The positioning pin E223 is arranged on the upper part of the blade forming stamping knife 228, and the blade forming stamping knife 2 has the same structure as the blade forming stamping knife 1.

[0147] The connecting part punching knife 229 protrudes from the lower bottom surface of the upper punch die 208. The connecting part punching knife 229 is used to punch and cut off the upper part of the left outer shape punching knife 1 230 and the lower part of the left outer shape punching knife 2 231 to form a connecting part. The connecting part punching knife 229 is used to punch and cut off the upper part of the right outer shape punching knife 1 232 and the lower part of the right outer shape punching knife 2 233 to form a connecting part.

[0148] The lower punch 209 includes a circular blanking hole 234, a mold positioning hole A235, a mold positioning hole B236, a positioning hole A237, a positioning hole B238, a positioning hole C239, a positioning hole D240, a positioning hole E241, a stamping shape left blanking hole 242, a stamping shape right blanking hole 243, a tool head cutting blanking hole 244, and a blade finished product blanking hole 245.

[0149] The circular blanking hole 234, positioning hole A237, positioning hole B238, positioning hole C239, positioning hole D240, and positioning hole E241 are arranged on the same horizontal line, and the circular blanking hole 234, positioning hole A237, positioning hole B238, positioning hole C239, positioning hole D240, and positioning hole E241 are arranged on the lower punch 209 in sequence from left to right.

[0150] The mold positioning hole A235 is set at the lower left part of the bottom of the lower punch 209, and the mold positioning hole B236 is set at the upper right part of the bottom of the lower punch 209.

[0151] The circular blanking hole 234, positioning hole A237, positioning hole B238, positioning hole C239, positioning hole D240, and positioning hole E241 are respectively adapted and corresponded to the circular punching knife 218, positioning pin A219, positioning pin B220, positioning pin C221, positioning pin D222, and positioning pin E223 arranged on the lower surface of the upper punch die 208.

[0152] The stamped shape left blanking hole 242 is arranged on the left side of the positioning hole A237, and the stamped shape left blanking hole 242 is adapted to the left shape stamping knife 224. The stamped shape right blanking hole 243 is arranged on the right side of the positioning hole B238, and the stamped shape right blanking hole 243 is adapted to the right shape stamping knife 225. The blade cutting blanking hole 244 is arranged above the positioning hole D240, and the blade cutting blanking hole 244 is adapted to the blade cutting knife 227. A blade finished blanking hole 245 is provided on the right side of the positioning hole E241, and the blade finished blanking hole 245 is adapted to the shape of the electrosurgical electrode.

[0153] Furthermore, the processing mold 207 can be structurally modified and adjusted according to the different electrosurgical electrode structures of Examples 2-5. While the processing mold 207 for processing the electrosurgical electrodes of Examples 2-5 will not be described again here, the main structure and principles are the same. The mold in the processing system for processing the electrosurgical electrodes described above is used to process the electrosurgical electrodes of Example 2.

[0154] The equipment included in the industrial equipment in this embodiment adopts the Youyi DL03F1 punch press three-in-one feeder, the model of the intelligent CNC roller feeder 200 adopts the Youyi DL series equipment, the model of the intelligent CNC transmission machine A201 adopts the Youyi DL series equipment, the stamping and forming area 202 adopts the general and mature stamping and forming equipment in the existing technology, and the specific model that can be adopted in the stamping and forming area 202 is Bowei CNC YXLM-250T, the intelligent CNC transmission machine B203 adopts the Youyi DL series equipment, and the double-sided polishing machine 204 adopts the model of Hyde Precision Machinery HD-640-5L.

[0155] The signal trigger 215 is similar to a switch. When the spring 214 is forced downward, it acts on the signal trigger 215, pressing the switch downward, disconnecting the current loop acting on the sensor power control motor and causing the motor to stop. When the spring 214 relaxes and returns, the switch is triggered to return, reconnecting the current, and the sensor power control motor restarts. The sensor power control motor and the signal trigger 215 complete their corresponding actions through the transmission and reception of signals. Both the sensor power control motor and the signal trigger 215 are commonly known devices in the prior art.

[0156] The blade 110 on the blade head 100 of the present invention is formed by applying high pressure instantaneously to a soft metal material, causing it to deform within the mold cavity of the processing mold 207 to form a cutting edge. To improve production efficiency, the electrosurgical electrode processing system of the present invention abandons the traditional single-shot stamping model. This stamping system implements continuous operations such as sheet metal feeding, stamping, finished product collection, and waste removal, ensuring consistent completion of all tasks and significantly improving operational efficiency.

[0157] The intelligent CNC roller feeder 200 continuously supplies stamped sheet metal parts. It consists of three main components: a circular loading roller, a T-shaped support, and a sensor-powered control motor. The circular loading roller meets the market's requirements for loading cylindrical sheet metal parts, facilitating loading and unloading. The T-shaped support provides a fixed support. The sensor-powered control motor provides the power to convey the sheet metal. Its start and stop are controlled by a signal trigger 215 in the stamping and forming area 202, and its speed remains consistent throughout operation.

[0158] Intelligent CNC conveyors A201 and B203 provide the power to transport and discharge sheet metal and maintain levelness in the stamping and forming area 202. The conveying power is synchronized with the intelligent CNC roller feeder 200 via a trigger signal 215 at the lower end of a spring 214, ensuring consistent transport speeds. A sensor-controlled motor provides driving force, driving the upper and lower rollers to rotate. The friction between the rollers allows the sheet metal to be transported forward.

[0159] The stamping and forming area 202 includes: a punching machine 210, a mold, a mold fastening bolt, a spring 214, a signal trigger 215, and a rolling roller 212. Among them, the punching machine 210 is used to provide punching power, and the mold fastening bolt is used to fasten and disassemble the mold. The upper end of the spring 214 is connected to the rolling pulley through a triangular bracket, and the bottom end is connected to the signal trigger 215. The rolling pulley is used to transmit sheet metal, and the signal trigger 215 is used to receive signals. When the punching machine 210 punches downward, the upper punch 208 contacts the sheet metal and compresses the spring 214 downward. The elastic force released by the compression of the spring 214 touches the signal trigger 215 at the bottom. The signal trigger 215 releases the stop signal and transmits it to the intelligent CNC roller feeder 200, the intelligent CNC conveyor A201 and the intelligent CNC conveyor B203, causing the three to stop operating at the same time. After the stamping is completed, the press is unloaded and the upper die 208 returns. The spring 214 gradually loses its force, and the signal trigger 215 acting on the bottom of the spring 214 disappears. The intelligent CNC roller feeder 200, intelligent CNC conveyor A 201, and intelligent CNC conveyor B 203 all start conveying the stamped semi-finished product to the next process. The roller pulley, spring 214, and signal trigger 215 connector are installed on the die base of the stamping press 210. After unloading, their height is higher than the lower die 209.

[0160] like Figure 24 As shown, the present invention provides a process for processing an electrosurgical electrode, comprising the following process steps:

[0161] S1. Punching the circular positioning hole 106 for the surgical electrode blade 102: In step S1, the upper punch 208 presses downward, triggering the signal trigger 215 via the spring 214, causing the intelligent CNC roller feeder 200, intelligent CNC conveyor A201, and intelligent CNC conveyor B203 to stop. The circular punch 218 of the upper punch 208 then punches the sheet metal into the circular blanking hole 234, which is hollow. Waste material falls due to gravity into a waste bin on the ground. After the upper punch 208 returns, the signal trigger 215 is deactivated, and the intelligent CNC roller feeder 200, intelligent CNC conveyor A201, and intelligent CNC conveyor B203 deliver the sheet metal with the circular hole to the next process.

[0162] S2, the left appearance shape of the stamping tool head 100 and the repeatedly bending area connecting section 101: In the step S2, the left appearance shape of the blade is stamped first, and the positioning pin A219 in the upper punch die 208 is used to position the circular hole of the sheet metal after the S1 process, and the sheet metal is stamped by the left outer shape stamping tool 224, and the sheet metal material is stamped into the left blanking hole 242 of the stamping outer shape. The waste material falls from the hole into the waste box, and the semi-finished product after stamping is sent to the next process after being unloaded by the stamping machine.

[0163] S3, the right appearance shape of the punching tool head 100 and the repeatedly bending area connecting section 101: The semi-finished product punched out in step S2 is punched into the right shape of the blade with the right appearance punching tool 225. When the lower punch 209 is lowered for punching, the sheet metal is positioned with the positioning pin B220. The sheet metal waste after punching falls from the right blanking hole 243 of the punching appearance into the waste box. The semi-finished product after punching is sent to the next process together with the sheet metal through the connecting parts.

[0164] The appearance of the blade can be formed through the above three steps of stamping, including: the stamped positioning hole 106, the shape of the blade head 100, the repeated bending area, the limiting step of the blade tail 102 and the connecting pin 104.

[0165] S4, stamping to form the slope of the blade 110: The blade shape punched out in step S3 is stamped out using a blade forming stamping tool 226 to form the slope of the blade 110. Before stamping, the blade positioning hole 106 and the lower punch 209 positioning hole C239 are positioned with a positioning pin C221. The bottom of the blade 110 forming part and the tail end face are kept in the same plane, and the upper end face of the blade 110 forming part is higher than the tail end plane, forming a blade face step. After stamping, the blade 110 face is formed on the cutter head 100. Due to the stamping accuracy problem, excess flash remains after one stamping, forming a blade 110 step, the width and thickness of the cutter head 100 exceed the set size range, and the size of the blade tail 102 part remains unchanged.

[0166] S5. Trimming Beyond the Blade 110 Width: The blade segment 100 punched out in step S4 is punched and trimmed using the segment cutter 227 to remove the step on the blade 110. The trimmed scrap falls through the segment cutting hole 244 into a scrap bin. The trimmed blade segment 100 is within the set width, but the thickness of the blade tip 112 exceeds the set size by 500-800 μm. The blade tail 102 and the intermediate area remain unchanged. The trimmed semi-finished product is then transported to the next process along with the sheet metal via a connector.

[0167] S6. Secondary stamping to thin the edge of the blade 110: The blade head 100, trimmed in step S5, is subjected to a secondary stamping process using the second blade forming stamping tool 228 to form a sharp edge. The blade forming tool 228 is identical in structure to that used in S4. Before stamping, the upper punch 208 is positioned using the locating pins E223. After stamping, the tip of the blade edge is approximately 100 to 200 μm thick. The thickness of the blade head 100 continues to increase, exceeding that of the blade tail 102, forming a step between the blade head 100 and the repeated bending area. After unloading from the press, the semi-finished product is transported along with the sheet metal to the next step, S7.

[0168] S7. Punching the blade and the sheet metal connector: The blade punched in step S6 is punched using the connector punching knife 229. The punching knife acts directly on the blade base position and quickly punches the connector through high pressure. The finished blade falls from the finished blade blanking hole into the finished product box, and the sheet metal waste is output from the intelligent CNC conveyor B203.

[0169] S8, double-sided polishing to finely refine the blade 110 into a sharp edge: In the step S8: the finished blade after secondary stamping is polished on both the upper and lower sides on the double-sided polishing machine 204, and the finished blade is placed in the middle positioning fixture. The polishing time, rotation speed and polishing pressure are set through the control panel. The polishing pressure is mainly formed by the sliding upper polishing disc squeezing the finished blade, and the up and down movement of the upper polishing disc is controlled by the control panel. The polishing process is divided into two steps: first, the upper and lower surfaces are polished at the same time. Since the contact area of ​​the upper surface is small and the polishing speed is fast, the polishing of the upper surface is stopped when the upper surface blade head 100 and the blade tail 102 are in the same plane. Then, the lower surface is polished separately until the width of the blade head 100 is within the set size range and the thickness of the blade tip 112 is 15μm to 100μm.

[0170] S9, spraying coating 111: spraying the blade in step S8 with coating 111 using a sprayer, wherein the sprayer is a sprayer in the prior art.

[0171] The structure of the processing mold 207 can be adjusted according to actual conditions, and the above-mentioned processing system and processing technology can also be used to process the electrosurgical electrodes described in the above-mentioned embodiments 1, 2, 3, and 4.

[0172] (1) The electrosurgical electrode of the present invention is formed by integrally stamping a soft metal material. The soft metal material can be bent repeatedly during use, which is convenient for the operator to use when bending the local area tissue. The traditional electrosurgical flat blade is made into a blade with a sloped edge 110, and the thickness of the blade tip 112 is maintained at 15μm to 100μm, thereby ensuring a larger current density during use and improving the smoothness of cutting.

[0173] (2) According to the different structures of the electrosurgical electrode of the present invention, the angle α between the inclined blade surface 113 and the bottom surface 105 of the blade body is 17°~30°; the angles β and θ between the upper inclined blade surface 115 and the lower inclined blade surface 116 are 17°~60°; and the angle between the upper blade surface 117 and the lower blade surface 118 is 17°~60°. The angles within this range can ensure the strength of the blade head 100 and the concentrated release of current during cutting.

[0174] (3) The blade body 109 of the electrosurgical electrode of the present invention is U-shaped, and the blade 110 is connected to the surface on three sides in the form of circular arcs, which can ensure that the user can operate at multiple angles and avoid inconvenience caused by uncomfortable position and angle.

[0175] (4) Due to the need to cut and coagulate local tissue, the operator often needs to bend the surgical electrode to a certain angle for use. If the blade head 100 is repeatedly bent, it is easy to cause the blade edge to crack, affecting the cutting effect. Therefore, a repeatedly bent area connecting section 101 is designed at the rear section of the blade head 100. The length of the repeatedly bent area connecting section 101 is 5mm to 15mm, which can be bent by the operator during use without affecting the cutting effect.

[0176] (5) The blade tail 102 of the electrosurgical electrode of the present invention is provided with a circular positioning hole 106 to facilitate subsequent punching and positioning. Limiting steps 103 are provided on both sides of the upper portion of the blade tail 102. The limiting steps 103 on both sides of the upper portion of the blade tail 102 form a connecting pin 104. The connecting pin 104 is conveniently inserted into the groove of the thin metal tube to play a conductive role. The limiting step 103 is provided to fix the insertion depth of the blade.

[0177] (6) The method of grinding the blade 110 is only suitable for high-hardness metal materials. Grinding the edge of soft metal materials is prone to curling and cracking. The processing technology of the electrosurgical electrode provided by the present invention adopts a processing method of "combining edge stamping and double-sided polishing" to achieve the blade shape and size of soft materials.

[0178] (7) The use of fixed mold stamping and automatic grinding wheel polishing machine double-sided polishing process eliminates the interference of human factors and other factors, and can achieve product size consistency. At the same time, the processing system of the electrosurgical electrode of the present invention abandons the traditional single stamping mode through the continuous stamping system, so that the stamping production is continuous, which significantly improves production efficiency and reduces labor costs.

[0179] (8) The electrosurgical electrode and its processing system and processing technology described in the present invention can instantly impact the material with high pressure, causing the material to deform in the mold cavity to form a cutting edge, while the surface roughness of the material is not affected and the metallic luster is still maintained; at the same time, regular inspection and maintenance of the mold and equipment can ensure a high product qualification rate and avoid the phenomenon of the soft metal material blade 110 cracking due to insufficient strength.

[0180] Obviously, the above embodiments are merely examples for the purpose of clearly illustrating the technical solutions of the present invention, and are not intended to limit the implementation methods of the present invention. The above-mentioned connection methods: movable connection, fixed connection, connection, connection, connection, etc. are all one or more of welding, bolt connection, riveting, interlocking connection, hinged connection or pin connection. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A processing system for electrosurgical electrodes, characterized in that: The processing system includes processing equipment, which includes an intelligent CNC roller feeder, an intelligent CNC conveyor A, a stamping and forming area, an intelligent CNC conveyor B, a double-sided polishing machine and a coating sprayer. The intelligent CNC roller feeder is arranged on the left side of the intelligent CNC conveyor A, and the stamping and forming area is provided on the right side of the intelligent CNC conveyor A. The intelligent CNC conveyor B is provided on the right side of the stamping and forming area; The intelligent numerical control roller feeder includes a circular cargo roller, a T-shaped support, and a sensor power control motor. The T-shaped support is provided with a circular cargo roller, and the circular cargo roller is provided with a coil formed by a sheet metal of a soft metal material. The driving end of the circular cargo roller is connected to the output end of the sensor power control motor. The stamping and forming area includes a stamping machine and a processing die arranged in the working area of ​​the stamping machine. The stamping machine is provided with a stamping power output end. A working platform is provided in the working area. The processing die includes an upper die and a lower die. The top of the upper die is connected to the stamping power output end, and the lower die is set on the working platform by fastening bolts. The lower punch is provided with a plurality of mounting grooves, and the plurality of mounting grooves are provided with rolling rollers, mounting brackets, springs and signal triggers arranged at the bottom of the mounting grooves in sequence from top to bottom. The upper end of the spring is provided with a mounting bracket, and the mounting bracket is provided with a rolling roller, and the rolling roller rolls on the mounting bracket. The lower end of the spring is provided with a signal trigger; The upper punch includes a die positioning pin A, a die positioning pin B, a circular punching knife, a positioning pin A, a positioning pin B, a positioning pin C, a positioning pin D, a positioning pin E, a left shape punching knife, a right shape punching knife, a blade forming punching knife 1, a blade cutting knife, a blade forming punching knife 2, and a connector punching knife; The mold positioning pin A is set at the upper left part of the bottom of the upper punch, and the mold positioning pin B is set at the lower right part of the bottom of the upper punch; The circular punching knife, positioning pin A, positioning pin B, positioning pin C, positioning pin D, and positioning pin E are arranged on the same horizontal line; A left-shaped stamping knife is provided on one side of the positioning pin A. The left-shaped stamping knife protrudes from the lower bottom surface of the upper punch die. The left-shaped stamping knife includes a left-shaped stamping knife 1 and a left-shaped stamping knife 2. The left-shaped stamping knife 1 is provided on the left side of the positioning pin A. The left-shaped stamping knife 1 is used for stamping the left shape of the upper half of the connecting section of the blade tail and the repeated bending area to form a limiting step 1 and a limiting step 2. The right side surface of the left-shaped stamping knife 1 is adapted to the shape of the blade tail and the upper half of the connecting section of the repeated bending area of ​​the electrosurgical electrode; A left outer shape stamping knife 2 is provided below the left outer shape stamping knife 1, and a gap is provided between the lower portion of the left outer shape stamping knife 1 and the upper portion of the left outer shape stamping knife 2 to form a connecting piece; The left outer shape stamping knife 2 is used for stamping the blade head and the lower half of the repeatedly bent area connecting section to form the limiting step 3 and the blade head. The right side surface of the left outer shape stamping knife 2 is adapted to the outer shape of the blade head and the lower half of the repeatedly bent area connecting section of the electrosurgical electrode. A right-shaped stamping knife is provided on one side of the positioning pin B. The right-shaped stamping knife protrudes from the lower bottom surface of the upper punch die. The right-shaped stamping knife includes a right-shaped stamping knife 1 and a right-shaped stamping knife 2. The right-shaped stamping knife 1 is provided on the right side of the positioning pin B. The right-shaped stamping knife 1 is used to stamp the right shape of the upper half of the connecting section of the blade tail and the repeatedly bent area to form the limiting step 1 and the limiting step 2. The left side of the right-shaped stamping knife 1 is adapted to the shape of the blade tail and the upper half of the connecting section of the repeatedly bent area of ​​the electrosurgical electrode; A right outer shape stamping knife 2 is provided below the right outer shape stamping knife 1, and a gap is provided between the lower portion of the right outer shape stamping knife 1 and the upper portion of the right outer shape stamping knife 2 to form a connecting piece; The second right outer shape stamping knife is used for stamping the lower half of the blade head and the repeatedly bent area connecting section to form the limiting step three and the blade head. The left side of the second right outer shape stamping knife is adapted to the outer shape of the blade head and the lower half of the repeatedly bent area connecting section of the electrosurgical electrode. The positioning pin C is arranged on the upper part of the blade forming stamping knife 1, and the blade forming stamping knife 1 protrudes from the lower surface of the upper punch die. The blade forming stamping knife 1 includes an upper blade forming stamping knife 1 and a lower blade forming stamping knife 1. A stamping step is provided at the connection between the upper blade forming stamping knife 1 and the lower blade forming stamping knife 1. The lower blade forming stamping knife 1 is provided with a groove, and the groove is adapted to the cutter head body, the blade and the blade tip. The lower blade forming stamping knife 1 is higher than the protruding height of the upper blade forming stamping knife 1 to form a stamping step; The positioning pin D is arranged above the cutter head, and the cutter head protrudes from the lower bottom surface of the upper punch. The cutter head is provided with a through groove that matches the three shapes of the cutter head and the limiting step, and the positioning pin D is arranged above the through groove; The positioning pin E is provided on the upper portion of the blade forming stamping knife 2, and the blade forming stamping knife 2 has the same structure as the blade forming stamping knife 1; The connector punching knife protrudes from the lower bottom surface of the upper punch die, and the connector punching knife is used to punch and cut off the upper part of the left outer shape punching knife and the lower part of the left outer shape punching knife to form a connector. The connector punching knife is used to punch and cut off the upper part of the right outer shape punching knife and the lower part of the right outer shape punching knife to form a connector. The lower punch includes a circular blanking hole, a mold positioning hole A, a mold positioning hole B, a positioning hole A, a positioning hole B, a positioning hole C, a positioning hole D, a positioning hole E, a left blanking hole for a stamping shape, a right blanking hole for a stamping shape, a cutter head cutting blanking hole, and a finished blade blanking hole; The circular blanking hole, positioning hole A, positioning hole B, positioning hole C, positioning hole D, and positioning hole E are arranged on the same horizontal line, and the circular blanking hole, positioning hole A, positioning hole B, positioning hole C, positioning hole D, and positioning hole E are arranged on the lower punch from left to right in sequence; The mold positioning hole A is set at the lower left part of the bottom of the lower punch, and the mold positioning hole B is set at the upper right part of the bottom of the lower punch; The circular blanking holes, positioning holes A, positioning holes B, positioning holes C, positioning holes D, and positioning holes E are sequentially matched and corresponded to the circular punching cutter, positioning pins A, positioning pins B, positioning pins C, positioning pins D, and positioning pins E provided on the lower surface of the upper punch die; The left blanking hole of the stamped shape is arranged on the left side of the positioning hole A, and the left blanking hole of the stamped shape is adapted to the left shape stamping knife. The right blanking hole of the stamped shape is arranged on the right side of the positioning hole B, and the right blanking hole of the stamped shape is adapted to the right shape stamping knife. The blade cutting blanking hole is arranged above the positioning hole D, and the blade cutting blanking hole is adapted to the blade cutting knife. A blade finished blanking hole is provided on the right side of the positioning hole E, and the blade finished blanking hole is adapted to the shape of the electrosurgical electrode.

2. A process for processing an electrosurgical electrode, implemented by the electrosurgical electrode processing system according to claim 1, characterized in that: The process steps include: S1. Punching to form a circular positioning hole at the tail of the surgical electrode blade: In step S1, the upper punch presses downward, and the signal trigger is triggered by the spring, and the intelligent CNC roller feeder and the intelligent CNC conveyor A and the intelligent CNC conveyor B stop running; the circular punching knife of the upper punch is used to punch the sheet metal, and the circular punching knife punches the sheet metal into the circular blanking hole. The circular blanking hole is a hollow hole, and the waste falls into the waste box on the ground due to its gravity; after the upper punch returns, the signal trigger signal is released, and the intelligent CNC roller feeder and the intelligent CNC conveyor A and the intelligent CNC conveyor B send the circular hole sheet metal to the next process; S2. Stamping the left external shape of the connecting section between the cutter head and the repeatedly bent area: In step S2, the left external shape of the blade is first stamped, and the positioning pin A in the upper punch die is used to position the circular hole of the sheet metal after the S1 process. The sheet metal is stamped by the left external shape stamping cutter, and the sheet metal is stamped into the left blanking hole of the stamped external shape. The waste material falls from the hole into the waste box. The semi-finished product after stamping is sent to the next process after being unloaded by the stamping machine; S3, punching the right outer shape of the connecting section between the punch head and the repeatedly bent area: The semi-finished product punched out in step S2 is punched into the right shape of the blade using the right outer shape punching tool. When the upper punch die descends for punching, the sheet metal is positioned with the positioning pin B. The punched sheet metal falls from the right blanking hole of the punched outer shape into the waste bin. The punched semi-finished product is sent to the next process together with the sheet metal through the connecting piece. The above three steps of stamping can form the appearance of the blade, including: stamping positioning holes, blade head shape, repeated bending area connecting section and the limiting step and connecting pin at the blade tail; S4, stamping to form a blade slope: The blade shape punched out in step S3 is stamped using a blade forming stamping tool to form a blade slope; before stamping, the blade positioning hole and the lower punch positioning hole C are positioned using a positioning pin C; the bottom of the blade forming part and the tail end plane are kept in the same plane, and the upper end surface of the blade forming part is higher than the tail end plane, forming a blade surface step; after stamping, the blade head forms a blade surface; due to stamping accuracy issues, excess flash remains after one stamping, forming a blade step, the blade head width and thickness exceed the set size range, and the size of the blade tail portion remains unchanged; S5. Cutting beyond the blade width: The blade head punched out in step S4 is punched and cut with a blade head cutter to the blade step, and the cut waste falls from the cutter head cutting hole into the waste box; the width of the cutter head after cutting is within the set size range, but the thickness of the formed blade tip exceeds the set size, and the size of the connection section between the blade tail and the repeatedly bent area remains unchanged; the cut semi-finished product is sent to the next process through the connecting piece along with the sheet metal; S6, secondary stamping to thin the blade edge: The blade head cut in step S5 is subjected to secondary stamping using a blade forming stamping tool 2 to form a sharp blade edge. The blade forming stamping tool 2 has the same structure as the blade forming stamping tool 1 in S4. Before stamping, the upper punch die positioning pin E is used to position it. After stamping, the thickness of the blade tip is 100 μm to 200 μm, and the thickness of the blade head continues to increase, exceeding the thickness of the blade tail. A step is formed at the connection section between the blade head and the repeatedly bent area. After the punch is unloaded, the semi-finished product is sent to the next step S7 along with the sheet metal. S7, punching off the blade and the sheet metal connector: The blade punched in step S6 is punched using a connector punching knife. The punching knife acts directly on the blade base position, quickly punching off the connector through high pressure, and the finished blade falls from the finished blade blanking hole into the finished product box. The sheet metal waste is output from the intelligent CNC conveyor B; S8, double-sided polishing to a sharp blade edge: In step S8, the finished blade is polished on both the upper and lower surfaces on a double-sided polishing machine, with the finished blade placed in the middle positioning fixture; the polishing time, rotation speed, and polishing pressure are set through the control panel. The polishing pressure is mainly generated by squeezing the finished blade by the sliding upper polishing disk, and the up and down movement of the upper polishing disk is controlled by the control panel; the polishing process is divided into two steps: first, the upper and lower surfaces are polished simultaneously. Due to the small contact area of ​​the upper surface, the polishing speed is fast. When the upper surface blade head and the blade tail are in the same plane, the polishing of the upper surface is stopped; then, the lower surface is polished separately until the blade head width is within the set size range and the blade tip thickness is 15μm to 100μm; S9, spray coating: spray the blade in step S8 with a coating machine.

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