Plasma operation electrode knife with replaceable electrode
By designing a replaceable plasma surgical electrode knife, and employing a replacement mechanism and a positioning mechanism, the problem of electrode blade wear affecting surgical efficiency is solved, enabling rapid replacement of electrode blades and improving surgical outcomes and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JUANWEI NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-05-19
AI Technical Summary
Existing plasma surgical electrodes suffer from wear and tear during use, leading to decreased conductivity and cutting efficiency. The electrodes cannot be replaced quickly, impacting surgical efficiency and outcomes.
A plasma surgical electrode knife with replaceable electrodes is designed, employing a replacement mechanism and a positioning mechanism, including components such as a mounting box, a sliding plate, a pressing column, a transmission rod, and a clamping plate assembly, to achieve rapid replacement and stable installation of the electrode blade.
This ensures that the electrode blades can be quickly replaced according to the patient's condition, improving the cutting effect and coagulation performance of the surgery, and enhancing the safety and success rate of the surgery.
Smart Images

Figure CN224251480U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surgical instrument technology, specifically to a plasma surgical electrode knife with replaceable electrodes. Background Technology
[0002] According to a patent published on the China Patent Network, the patent title is "A Radiofrequency Plasma Ablation Electrode and Surgical Knife," patent application number 202410588997.0. This invention relates to the field of radiofrequency ablation electrode technology, specifically a radiofrequency plasma ablation electrode and surgical knife, including a radiofrequency ablation head and a handle. A button is fixedly installed on one side of the handle. One end of the radiofrequency ablation head is fixedly connected to a radiofrequency plasma wire. Current and signals are transmitted through the radiofrequency plasma wire to control the radiofrequency ablation head to perform ablation treatment on the affected area. By rotating the dial, the radiofrequency ablation head and the tubing can be moved out of the storage cavity. During the outward movement of the tubing, the disinfectant alcohol in the storage cavity will enter the cleaning and disinfection mechanism through the liquid guiding mechanism. The cleaning and disinfection mechanism can clean and disinfect the surface of the tubing. After use, the radiofrequency ablation head and the tubing can be stored in the storage cavity by rotating the dial. During the storage of the tubing, the surface of the tubing is also cleaned and disinfected, making it convenient to use. The aforementioned plasma surgical electrode blades will gradually wear down during use, which will affect their conductivity and cutting effect, making them unable to meet surgical requirements. Therefore, it is necessary to enable quick electrode replacement to ensure that the cutting effect and coagulation performance of the surgery are at their best.
[0003] Therefore, it is necessary to redesign and modify the plasma surgical electrode to effectively prevent the phenomenon of low electrode replacement efficiency. Utility Model Content
[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a plasma surgical electrode knife with replaceable electrodes, which has the advantage of quick electrode blade replacement and solves the problem of the inability to quickly replace the electrode blade, thus affecting work efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a replaceable electrode plasma surgical electrode knife, including a handle;
[0006] A power cord is connected to the outside of the handle;
[0007] A switch assembly is fixedly connected to the front of the knife handle;
[0008] The front of the handle is equipped with an anti-slip pad;
[0009] Electrode blades are provided on the outer side of the handle;
[0010] An electrode connector is fixedly connected to the outside of the tool holder;
[0011] The electrode connector is fitted with a replacement mechanism.
[0012] The replacement mechanism includes a mounting box. A short sliding column is fixedly connected to the top of the inner cavity of the mounting box. A sliding plate is slidably connected to the surface of the short sliding column. A pressing column is fixedly connected to the top of the sliding plate. The top of the pressing column extends to the outside of the mounting box. A return spring is sleeved on the surface of the short sliding column. The top of the return spring is fixedly connected to the bottom of the sliding plate. A transmission rod is fixedly connected to both sides of the sliding plate. A horizontal plate is fixedly connected to both sides of the inner cavity of the mounting box. A clamping plate assembly is movably connected to the top of the horizontal plate. A pressing plate is fixedly connected to the back of the clamping plate assembly. The top of the pressing plate is in contact with the bottom of the transmission rod. A power spring is fixedly connected to the bottom of the pressing plate. The bottom of the power spring is fixedly connected to the top of the horizontal plate. A positioning mechanism is fixedly connected to the top of the mounting box.
[0013] As a preferred embodiment of this utility model, the positioning mechanism includes a positioning hole, which is opened on the outside of the pressing column. A double sliding rod is fixedly connected to the top of the mounting box, and a positioning plate is slidably connected to the surface of the double sliding rod.
[0014] As a preferred embodiment of this invention, a connecting strip is fixedly connected to the top of the pressing plate, and the bottom of the connecting strip is fixedly connected to the top of the card plate assembly.
[0015] As a preferred embodiment of this utility model, right-angle plates are fixedly connected to both the front and back of the horizontal plate, and the outer side of the right-angle plates is fixedly connected to the inner wall of the mounting box.
[0016] As a preferred embodiment of this invention, a reinforcing plate is fixedly connected to the top of the skateboard, and the bottom of the reinforcing plate is fixedly connected to the top of the transmission rod.
[0017] As a preferred embodiment of this invention, a reinforcing ring is fitted onto the surface of the short sliding column, and the top of the reinforcing ring is fixedly connected to the inner wall of the mounting box.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. This utility model, by setting up a replacement mechanism, overcomes the shortcomings of traditional plasma surgical electrode knives in terms of electrode replacement. It can quickly replace the electrode according to the specific conditions of different patients, ensuring that the cutting effect and coagulation performance of the surgery reach the best state, thereby improving the safety and success rate of the surgery.
[0020] 2. This utility model, through the setting of the positioning mechanism, can position the pressing column, so that the pressing column is always in the same position, which brings convenience to the user when installing new electrodes.
[0021] 3. The present invention can reinforce the pressing plate by setting the connecting strip, which strengthens the connection between the pressing plate and the card plate assembly, and makes the two more stable.
[0022] 4. The right-angle plate in this utility model can reinforce the horizontal plate, ensuring that the horizontal plate can be more stably connected to the inner wall of the mounting box and preventing it from falling off.
[0023] 5. By adding a reinforcing plate, this utility model can strengthen the transmission rod, enhance the connection between the transmission rod and the slide plate, and make the two more stably connected.
[0024] 6. By adding a reinforcing ring, this utility model can reinforce the short sliding column, strengthen the connection between the short sliding column and the mounting box, and effectively prevent the short sliding column from falling off. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is an exploded view of the electrode blade of this utility model;
[0027] Figure 3 This is a diagram of the internal structure of the mounting box of this utility model;
[0028] Figure 4 This utility model Figure 4 Enlarged view of the structure at point A in the middle;
[0029] Figure 5 This is a structural diagram of the positioning mechanism of this utility model;
[0030] Figure 6 This is a partial structural diagram of the present invention.
[0031] In the diagram: 1. Tool handle; 2. Power cord; 3. Switch assembly; 4. Anti-slip pad; 5. Electrode blade; 6. Electrode connector; 7. Replacement mechanism; 71. Mounting box; 72. Short slide column; 73. Slide plate; 74. Pressing column; 75. Return spring; 76. Transmission rod; 77. Horizontal plate; 78. Clamping plate assembly; 79. Pressing plate; 710. Power spring; 8. Positioning mechanism; 81. Positioning hole; 82. Double slide rod; 83. Positioning plate; 9. Connecting strip; 10. Right angle plate; 11. Reinforcing plate; 12. Reinforcing ring. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] like Figures 1 to 6 As shown, the present invention provides a replaceable electrode plasma surgical electrode knife, including a handle 1;
[0034] A power cord 2 is connected to the outside of the handle 1;
[0035] A switch assembly 3 is fixedly connected to the front of the handle 1;
[0036] The front of the handle 1 is provided with an anti-slip pad 4;
[0037] An electrode blade 5 is provided on the outer side of the handle 1;
[0038] An electrode connector 6 is fixedly connected to the outside of the tool holder 1;
[0039] A replacement mechanism 7 is fitted onto the surface of the electrode connector 6;
[0040] The replacement mechanism 7 includes a mounting box 71. A short sliding column 72 is fixedly connected to the top of the inner cavity of the mounting box 71. A sliding plate 73 is slidably connected to the surface of the short sliding column 72. A pressing column 74 is fixedly connected to the top of the sliding plate 73. The top of the pressing column 74 extends to the outside of the mounting box 71. A return spring 75 is sleeved on the surface of the short sliding column 72. The top of the return spring 75 is fixedly connected to the bottom of the sliding plate 73. A transmission rod 76 is fixedly connected to both sides of the sliding plate 73. A horizontal plate 77 is fixedly connected to both sides of the inner cavity of the mounting box 71. A clamping plate assembly 78 is movably connected to the top of the horizontal plate 77. A pressing plate 79 is fixedly connected to the back of the clamping plate assembly 78. The top of the pressing plate 79 fits against the bottom of the transmission rod 76. A power spring 710 is fixedly connected to the bottom of the pressing plate 79. The bottom of the power spring 710 is fixedly connected to the top of the horizontal plate 77. A positioning mechanism 8 is fixedly connected to the top of the mounting box 71.
[0041] refer to Figure 5 The positioning mechanism 8 includes a positioning hole 81, which is opened on the outside of the pressing post 74. A double slide rod 82 is fixedly connected to the top of the mounting box 71, and a positioning plate 83 is slidably connected to the surface of the double slide rod 82.
[0042] As a technical optimization of this utility model, the positioning mechanism 8 can be used to position the pressing column 74, so that the pressing column 74 is always in the same position, which brings convenience to the user when installing new electrodes.
[0043] refer to Figure 4 A connecting strip 9 is fixedly connected to the top of the pressing plate 79, and the bottom of the connecting strip 9 is fixedly connected to the top of the card plate assembly 78.
[0044] As a technical optimization of this utility model, the connection strip 9 can reinforce the pressing plate 79, strengthen the connection between the pressing plate 79 and the card plate assembly 78, and enable the two to be connected more stably.
[0045] refer to Figure 3 Right-angle plates 10 are fixedly connected to both the front and back of the horizontal plate 77, and the outer side of the right-angle plates 10 is fixedly connected to the inner wall of the mounting box 71.
[0046] As a technical optimization of this utility model, the right-angle plate 10 can reinforce the horizontal plate 77, ensuring that the horizontal plate 77 can be more stably connected to the inner wall of the mounting box 71, and preventing it from falling off.
[0047] refer to Figure 3 A reinforcing plate 11 is fixedly connected to the top of the slide plate 73, and the bottom of the reinforcing plate 11 is fixedly connected to the top of the transmission rod 76.
[0048] As a technical optimization of this utility model, the reinforcing plate 11 can reinforce the transmission rod 76, strengthen the connection between the transmission rod 76 and the slide plate 73, and enable the two to be connected more stably.
[0049] refer to Figure 3 A reinforcing ring 12 is fitted onto the surface of the short sliding post 72, and the top of the reinforcing ring 12 is fixedly connected to the inner wall of the mounting box 71.
[0050] As a technical optimization of this utility model, the reinforcing ring 12 can reinforce the short sliding post 72, strengthen the connection between the short sliding post 72 and the mounting box 71, and effectively prevent the short sliding post 72 from falling off.
[0051] The working principle and usage process of this utility model are as follows: First, the user only needs to press the pressing column 74. The pressing column 74 drives the transmission rod 76 to move downward through the sliding plate 73, while squeezing the return spring 75 to store kinetic energy. The transmission rod 76 moves downward, causing the clamping plate assembly 78 to tilt and the power spring 710 to store kinetic energy. Then, the positioning plate 83 is moved left and right, so that the positioning plate 83 moves to a state of contact with the inner wall of the positioning hole 81, reaching the installation preparation state. Then, the new electrode blade 5 is moved to the inner cavity of the mounting box 71 and is in contact with the electrode connector 6, so that the positioning plate 83 is separated from the positioning hole 81. The return spring 75 releases kinetic energy, driving the transmission rod 76 to move upward. The power spring 710 releases kinetic energy to push the pressing plate 79 to rotate to a state of contact with the electrode blade 5. Through the above operations, the effect of quickly changing the electrode is achieved.
[0052] In summary, this replaceable electrode plasma surgical knife overcomes the shortcomings of traditional plasma surgical electrodes in terms of electrode replacement by incorporating a replacement mechanism. It allows for rapid electrode replacement based on the specific conditions of different patients, ensuring optimal cutting results and coagulation performance, thereby improving surgical safety and success rate.
[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A plasma surgical electrode knife with replaceable electrodes, including a handle (1); A power cord (2) is connected to the outside of the handle (1); A switch assembly (3) is fixedly connected to the front of the handle (1); The front of the handle (1) is provided with an anti-slip pad (4); An electrode blade (5) is provided on the outside of the handle (1); An electrode connector (6) is fixedly connected to the outside of the tool holder (1); A replacement mechanism (7) is fitted onto the surface of the electrode connector (6); Its features are: The replacement mechanism (7) includes a mounting box (71). A short sliding column (72) is fixedly connected to the top of the inner cavity of the mounting box (71). A sliding plate (73) is slidably connected to the surface of the short sliding column (72). A pressing column (74) is fixedly connected to the top of the sliding plate (73). The top of the pressing column (74) extends to the outside of the mounting box (71). A return spring (75) is sleeved on the surface of the short sliding column (72). The top of the return spring (75) is fixedly connected to the bottom of the sliding plate (73). Both sides of the sliding plate (73) are fixedly connected to transmission devices. The rod (76) has a horizontal plate (77) fixedly connected to both sides of the inner cavity of the mounting box (71). The top of the horizontal plate (77) is movably connected to a clamping plate assembly (78). The back of the clamping plate assembly (78) is fixedly connected to a pressing plate (79). The top of the pressing plate (79) is in contact with the bottom of the transmission rod (76). The bottom of the pressing plate (79) is fixedly connected to a power spring (710). The bottom of the power spring (710) is fixedly connected to the top of the horizontal plate (77). The top of the mounting box (71) is fixedly connected to a positioning mechanism (8).
2. The plasma surgical electrode knife with replaceable electrodes according to claim 1, characterized in that: The positioning mechanism (8) includes a positioning hole (81) which is located on the outside of the pressing column (74). A double slide rod (82) is fixedly connected to the top of the mounting box (71), and a positioning plate (83) is slidably connected to the surface of the double slide rod (82).
3. The plasma surgical electrode knife with replaceable electrodes according to claim 1, characterized in that: The top of the pressing plate (79) is fixedly connected to a connecting strip (9), and the bottom of the connecting strip (9) is fixedly connected to the top of the card plate assembly (78).
4. The plasma surgical electrode knife with replaceable electrodes according to claim 1, characterized in that: The front and back sides of the horizontal plate (77) are fixedly connected to right angle plates (10), and the outer side of the right angle plates (10) is fixedly connected to the inner wall of the mounting box (71).
5. A plasma surgical electrode knife with replaceable electrodes according to claim 1, characterized in that: The top of the slide plate (73) is fixedly connected to a reinforcing plate (11), and the bottom of the reinforcing plate (11) is fixedly connected to the top of the transmission rod (76).
6. The plasma surgical electrode knife with replaceable electrodes according to claim 1, characterized in that: The surface of the short sliding column (72) is fitted with a reinforcing ring (12), and the top of the reinforcing ring (12) is fixedly connected to the inner wall of the mounting box (71).