Plasma operation electrode for treating rhinitis

Abstract

The utility model discloses a plasma operation electrode for treating rhinitis, and relates to the technical field of medical instruments. In order to solve the problems that a radio frequency electrode is inconvenient to assemble and disassemble, complex in structure and poor in treatment effect, the radio frequency electrode comprises an electrode tip, an electrode rod, a handle and a cable connector which are connected in sequence, the electrode rod comprises an inner tube and an outer tube, the tail end of the electrode tip is installed between the inner tube and the outer tube, and the inner tube and the outer tube extend into the handle; the electrode tip comprises a working electrode, a return electrode and an insulating head, the working electrode is arranged in the middle of the insulating head as a positive electrode, and a wire of the working electrode is connected with the cable connector; the rear end of the return electrode is connected with the outer tube, and the rear end of the outer tube is connected with the negative wire. According to the utility model, the performance of an operation tool is improved, the safety, efficiency and effect of an operation are improved, and a more effective and safer method is provided for treating rhinitis.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a plasma surgical electrode for treating rhinitis. Background Technology

[0002] Chronic rhinitis is a chronic inflammatory disease of the nasal mucosa caused by viruses, bacteria, allergens, various physical and chemical factors, and certain systemic diseases. It is a common chronic nasal disease affecting 10%-20% of the world's population. The treatment principle for rhinitis is "prevention and treatment combined, a four-pronged approach," including environmental control, drug therapy, immunotherapy, and health education. In clinical practice, allergic rhinitis is mainly treated by avoiding allergens, surgical treatment, drug therapy, and immunotherapy. Surgical treatment is becoming increasingly important as an adjunct to routine treatment of allergic rhinitis. Surgical treatment mainly includes the following methods: inferior turbinate reconstruction and septoplasty to improve nasal ventilation, and posterior nasal nerve block to reduce nasal mucosal hyperreactivity. Currently, some surgical devices use radiofrequency electrodes to ablate lesions. However, these devices are not well adapted to the structure of the nasal cavity, and the ablation effect still needs improvement. Utility Model Content

[0003] The purpose of this invention is to provide a plasma surgical electrode for treating rhinitis, in order to solve the problems of existing radiofrequency electrodes being inconvenient to assemble and disassemble, having a complex structure, and having poor ablation effects.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A plasma surgical electrode for treating rhinitis includes: an electrode head, an electrode rod, a handle, and a cable connector connected in sequence. The electrode rod includes an inner tube and an outer tube. The end of the electrode head is installed between the inner tube and the outer tube. The inner tube and the outer tube extend into the handle.

[0006] The electrode head includes a working electrode, a return electrode, and an insulating head. The working electrode, as the positive electrode, is located in the middle of the insulating head, and its wire is connected to a cable connector. The return electrode, as the negative electrode, is located on the side of the insulating head, and its rear end is connected to an outer tube. The rear end of the outer tube is connected to the negative electrode wire.

[0007] Furthermore, the insulating head includes a lower insulating head and an upper insulating head installed inside it, with the working electrode located in the middle of the upper insulating head and the return electrodes located at both ends of the upper insulating head.

[0008] Furthermore, the electrode head also includes a thermocouple, which is mounted on the front end face of the upper insulating head.

[0009] Furthermore, the upper insulating head includes a wedge-shaped front end and a hollow cylindrical rear end. The middle of the wedge-shaped front end has multiple working electrode mounting holes for mounting the working electrode. The front end of the wedge-shaped front end has a thermocouple mounting hole. The lower ends of both sides of the wedge-shaped front end are provided with elongated limiting posts. The upper ends of both sides of the wedge-shaped front end have return electrode mounting grooves. The hollow cylindrical rear end is inserted between the outer tube and the inner tube. The interior of the hollow cylindrical rear end has a mounting cavity.

[0010] Furthermore, the groove of the lower insulating head is provided with a snap-fit ​​post and a limiting groove that are compatible with the upper insulating head, and the plug end of the lower insulating head is installed in the mounting cavity.

[0011] Furthermore, the working electrode includes an electrode sheet and multiple discharge tips disposed on one side of the electrode sheet, while the other side of the electrode sheet is a wire connection terminal.

[0012] Furthermore, the electrode sheet is thin and the inclination angle of the electrode sheet is the same as that of the wedge-shaped front end of the upper insulating head; the discharge tip is toothed and each toothed discharge tip is correspondingly clamped into the mounting hole of each working electrode of the upper insulating head.

[0013] Furthermore, a conductive metal layer is provided on the surface of the discharge tip.

[0014] Furthermore, a PI tube is fitted over the outer tube, and both the outer tube and the PI tube have an anti-reflective layer or film on their outer surfaces.

[0015] This utility model has the following beneficial effects:

[0016] The electrode structure designed in this invention is simple and effective, reducing complexity and making the product easier to manufacture and maintain. The electrode design ensures performance stability during use, improving the reliability and safety of the surgery. The electrode components can be easily assembled and disassembled, facilitating rapid preparation and cleaning before and after surgery, and also simplifying future maintenance and replacement. Due to the special design of the electrode, including the configuration of the working electrode, return electrode, and insulating head, as well as the shape and layout of the discharge tip, it better adapts to the nasal cavity structure, enabling more precise ablation of the posterior inferior nasal nerve tissue, thereby providing better treatment results.

[0017] The installation of this thermocouple allows for more precise temperature control during surgery, helping to protect surrounding healthy tissue and reduce surgical complications. Due to the electrode's precise ablation capability, discomfort during surgery is reduced, improving patient comfort and satisfaction. The simple and rational structure and convenient assembly and disassembly help shorten surgical preparation and execution time, improving overall surgical efficiency. The electrode design allows for flexible use in different patients and surgical situations, demonstrating strong adaptability and broad application prospects. Attached Figure Description

[0018] Figure 1 This is an external overall structural diagram of the plasma surgical electrode for treating rhinitis according to this utility model;

[0019] Figure 2 This is a cross-sectional view of the electrode tip of the plasma surgical electrode for treating rhinitis according to this utility model.

[0020] Figure 3 This is a schematic diagram of the electrode head structure of the plasma surgical electrode for treating rhinitis according to this utility model;

[0021] Figure 4 This is an overall structural diagram of the upper insulating head of the plasma surgical electrode for treating rhinitis according to this utility model;

[0022] Figure 5 This is an overall structural diagram of the lower insulating head of the plasma surgical electrode for treating rhinitis according to this utility model.

[0023] Figure 6 This is a schematic diagram of the working electrode structure of the plasma surgical electrode for treating rhinitis according to this utility model;

[0024] Figures 1 to 6 The reference numerals in the attached drawings represent: electrode head 1, electrode rod 2, inner tube 21, outer tube 22, PI tube 23, handle 3, cable connector 4, working electrode 11, electrode plate 111, discharge tip 112, wire connection end 113, return electrode 12, upper insulating head 131, working electrode mounting hole 1311, thermocouple mounting hole 1312, limiting post 1313, mounting cavity 1314, return electrode mounting groove 1315, lower insulating head 132, snap-fit ​​post 1321, limiting groove 1322, plug-in end 1323, and thermocouple 14. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Please refer to Figure 1-2 This embodiment provides a plasma surgical electrode for treating rhinitis. Through precise electrode design and optimized assembly structure, this surgical electrode achieves efficient and stable ablation treatment of the posterior inferior nasal nerve tissue. The following is a detailed description of the structure and working principle of this surgical electrode.

[0027] First, the overall structure of the surgical electrode includes an electrode head 1, an electrode rod 2, a handle 3, and a cable connector 4. The electrode rod 2, serving as a bridge connecting the electrode head 1 and the handle 3, consists of an inner tube 21 and an outer tube 22. The electrode head 1 is mounted at the front end of the outer tube 22 and the inner tube 21. The inner tube 21 is hollow and used to carry the electrodes and thermocouple wires. The outer tube 22 is fitted with a PI tube 23 to enhance structural stability and provide additional insulation protection. Both the inner tube 21 and the outer tube 22 extend into the handle 3, allowing the wires to connect to the cable connector 4, thereby achieving electrical connection between the surgical electrode and an external power supply and control system.

[0028] Reference Figure 2-3 The electrode head 1 is the core component of the entire surgical electrode, comprising a working electrode 11, a return electrode 12, an insulating head, and a thermocouple 14. The working electrode 11, serving as the positive electrode, is located in the center of the insulating head and is used to generate plasma to ablate the target tissue. Thermocouple 14 is mounted on the front end of the insulating head to monitor temperature changes during the procedure, ensuring the safety and effectiveness of the surgery. The return electrode 12, serving as the negative electrode, is located on both sides of the insulating head, with its rear end fixedly connected (e.g., welded) to a metal outer tube 22 for conduction. The rear end of the metal outer tube 22 is connected to a negative electrode lead.

[0029] Reference Figure 4-5 The insulating head is made of ceramic or plastic, possessing excellent insulation performance and thermal stability. The insulating head consists of two parts: an upper insulating head 131 and a lower insulating head 132, which are securely connected through a precise mating structure. The upper insulating head 131 has a suitable shape design, including a wedge-shaped front end and a hollow cylindrical rear end. The lower end face of the wedge-shaped front end has a locking groove, and its upper end face is a plane inclined at a certain angle (e.g., 10°) to adapt to the tissue morphology within the nasal cavity. Multiple working electrode mounting holes 1311 are formed in the middle of the wedge-shaped front end for mounting the discharge tip of the working electrode 11. A thermocouple mounting hole 1312 is also formed at the front end of the wedge-shaped front end for mounting a thermocouple 14. Furthermore, elongated limiting posts 1313 are provided on the lower end faces of both sides of the wedge-shaped front end for positioning and mating with the lower insulating head 132. Return electrode mounting grooves 1315 are formed on the upper end faces of both sides of the wedge-shaped front end for mounting the return electrode 12.

[0030] The hollow cylindrical rear end portion is inserted between the outer tube 22 and the inner tube 21, and its interior is provided with a mounting cavity 1314 for the wire, the inner tube 21 and the lower insulating head 132. The mounting cavity 1314 provides sufficient space for the wire, the inner tube 21 and the lower insulating head 132 to ensure that they can be securely installed in the upper insulating head 131.

[0031] The lower insulating head 132 has a wedge-shaped structure with a rounded, puncture-resistant front end to enhance safety. An internal groove in the lower insulating head 132 is used to mount the wedge-shaped front end of the upper insulating head 131. Within this groove, a snap-fit ​​post 1321 and a limiting groove 1322 are provided, which respectively mate with the snap-fit ​​groove and limiting post 1313 of the upper insulating head 131. This mating structure ensures a secure connection between the upper insulating head 131 and the lower insulating head 132, increasing the stability of the insulating heads. The rear end of the lower insulating head 132 is a plug-in end 1323, which can be installed within the rear mounting cavity 1314 of the upper insulating head 131, further ensuring a secure connection between the upper and lower insulating heads 131 and 132.

[0032] Reference Figure 6 The working electrode 11 includes a thin electrode sheet 111 body and multiple toothed discharge tips 112 disposed on one side of the electrode sheet 111. The other side has a wire connection end 113 for welding wires and providing a limiting function. The electrode sheet 111 and the wedge-shaped portion at the front end of the upper insulating head 131 have the same tilt angle (e.g., 10°). This design allows the electrode head 1 to better conform to the tissue morphology within the nasal cavity, thereby improving the ablation treatment effect. Each toothed discharge tip 112 is correspondingly locked into the corresponding working electrode mounting hole 1311 of the upper insulating head 131. Through the locking structure, the working electrode 11 can be securely mounted on the upper insulating head 131, preventing it from falling off or shifting during the procedure. To improve conductivity, the surface of the discharge tip 112 can be coated with a conductive metal layer such as gold or silver to better excite nasal mucosal fluid to form plasma.

[0033] Thermocouple 14 is mounted on the front end of the upper insulating head 131 to monitor temperature changes during the procedure. The wires of thermocouple 14 also pass through the interior of the insulating head and connect to cable connector 4 along the inner tube 21, thereby transmitting the temperature signal to the external control system. The external control system can adjust the plasma generation parameters in real time based on the temperature signal to ensure the safety and effectiveness of the procedure.

[0034] The return electrode 12 includes two electrode plates, left and right, which are positioned as negative electrodes on both sides of the upper insulating head 131. The rear end of the return electrode 12 is fixedly connected (e.g., welded) to the outer metal tube 22, and the rear end of the outer metal tube 22 is connected to a negative electrode wire. During the procedure, the plasma generated by the working electrode 11 forms a current loop with the return electrode 12 through the target tissue, thereby achieving ablation treatment.

[0035] To prevent reflections from affecting the endoscope's observation capabilities, this embodiment also coats the outer surfaces of the PI tube 23 and the outer tube 22 with an anti-reflective material or film. This anti-reflective treatment effectively reduces reflection interference during surgery, improves the clarity of endoscope observation, and thus ensures the accuracy and safety of the surgery.

[0036] When assembling the surgical electrodes, first, the discharge tip of the working electrode 11 is secured into the working electrode mounting hole 1311 of the upper insulating head 131, and the thermocouple 14 is installed into the thermocouple mounting hole 1312. Then, the return electrode 12 is installed into the return electrode mounting slot 1315, ensuring it is fixedly connected to the rear end of the outer metal tube 22. Next, the snap-fit ​​post 1321 and the limiting groove 1322 of the lower insulating head 132 are respectively engaged with the snap-fit ​​groove and the limiting post 1313 of the upper insulating head 131, firmly connecting the upper insulating head 131 and the lower insulating head 132 together. Finally, the inner tube 21 and the outer tube 22 are respectively inserted into the hollow cylindrical rear end portion of the upper insulating head 131, and the wire is passed through the inner tube 21 and connected to the cable connector 4.

[0037] During the procedure, the surgeon inserts a surgical electrode into the patient's nasal cavity through an endoscope and adjusts the position of electrode tip 1 to contact the target tissue. Then, an external control system activates a plasma generator to produce a high-frequency electric field. Under the influence of this electric field, the discharge tip of the working electrode 11 excites the nasal mucosal fluid to form plasma. The high-energy ions and free radicals in the plasma react with the target tissue, breaking its molecular chains and transforming it into smaller molecules, thus achieving ablation therapy. Simultaneously, thermocouple 14 monitors temperature changes in real time during the procedure and transmits the temperature signal to the external control system. The external control system can adjust the plasma generation parameters in real time based on the temperature signal to ensure the safety and effectiveness of the procedure.

[0038] The surgical electrode of this specific embodiment has the following advantages:

[0039] The structure is simple, reasonable, stable, and reliable. Through precise fitting structure and clamping design, it is ensured that all components of electrode head 1 can be firmly connected together, avoiding the risk of detachment or displacement during surgery.

[0040] Easy to assemble and disassemble. The various components of the surgical electrode are connected by an easy-to-disassemble method, allowing doctors to easily assemble and adjust them before surgery, improving the efficiency and accuracy of the operation.

[0041] The ablation treatment of the posterior inferior nasal nerve tissue is more effective. The tilted design of electrode head 1 and multiple discharge tips can better conform to the tissue morphology within the nasal cavity and generate a uniform plasma distribution, thereby improving the effectiveness and safety of the ablation treatment.

[0042] Anti-reflective treatment improves the clarity of endoscopic observation. By coating the outer surfaces of the PI tube 23 and the outer tube 22 with anti-reflective material or film, reflection interference during surgery is effectively reduced, improving the clarity of endoscopic observation and thus ensuring the accuracy and safety of the surgery.

[0043] Thermocouples monitor temperature changes in real time. Thermocouple 14 can monitor temperature changes during the surgical process in real time and transmit the temperature signal to an external control system. The external control system can adjust the plasma generation parameters in real time based on the temperature signal to ensure the safety and effectiveness of the surgery.

[0044] In summary, this specific embodiment provides a plasma surgical electrode that is simple in structure, stable and reliable, and easy to assemble and disassemble. This surgical electrode can efficiently ablate and treat the posterior inferior nasal nerve tissue, while improving the clarity of endoscopic observation and the safety of the surgery. Therefore, this surgical electrode has broad application prospects in the surgical treatment of nasal diseases such as rhinitis.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plasma surgical electrode for treating rhinitis, characterized in that, include: The electrode head (1), electrode rod (2), handle (3) and cable connector (4) are connected in sequence. The electrode rod (2) includes an inner tube (21) and an outer tube (22). The end of the electrode head (1) is installed between the inner tube (21) and the outer tube (22). The inner tube (21) and the outer tube (22) extend into the handle (3). The electrode head (1) includes a working electrode (11), a return electrode (12), and an insulating head. The working electrode (11) is set as the positive electrode in the middle of the insulating head, and the wire of the working electrode (11) is connected to the cable connector (4). The return electrode (12) is set as the negative electrode on the side of the insulating head, and the rear end of the return electrode (12) is connected to the outer tube (22). The rear end of the outer tube (22) is connected to the negative electrode wire.

2. The plasma surgical electrode for treating rhinitis according to claim 1, characterized in that, The insulating head includes a lower insulating head (132) and an upper insulating head (131) installed inside it. The working electrode (11) is located in the middle of the upper insulating head (131), and the return electrode (12) is located at both ends of the upper insulating head (131).

3. The plasma surgical electrode for treating rhinitis according to claim 2, characterized in that, The electrode head (1) also includes a thermocouple (14), which is mounted on the front end face of the upper insulating head (131).

4. The plasma surgical electrode for treating rhinitis according to claim 3, characterized in that, The upper insulating head (131) includes a wedge-shaped front end and a hollow cylindrical rear end. The middle of the wedge-shaped front end has multiple working electrode mounting holes (1311) for mounting the working electrode (11). The front end of the wedge-shaped front end has a thermocouple mounting hole (1312). The lower end faces on both sides of the wedge-shaped front end are provided with limiting posts (1313). The upper end faces on both sides of the wedge-shaped front end have return electrode mounting grooves (1315). The hollow cylindrical rear end is inserted between the outer tube (22) and the inner tube (21). The interior of the hollow cylindrical rear end has a mounting cavity (1314).

5. The plasma surgical electrode for treating rhinitis according to claim 4, characterized in that, The groove of the lower insulating head (132) is provided with a snap-fit ​​post (1321) and a limiting groove (1322) that are compatible with the upper insulating head (131), and the plug end (1323) of the lower insulating head (132) is installed in the mounting cavity (1314).

6. The plasma surgical electrode for treating rhinitis according to claim 5, characterized in that, The working electrode (11) includes an electrode sheet (111) and a plurality of discharge tips (112) disposed on one side of the electrode sheet (111), and the other side of the electrode sheet (111) is a wire connection end (113).

7. The plasma surgical electrode for treating rhinitis according to claim 6, characterized in that, The electrode sheet (111) is thin and the electrode sheet (111) has the same inclination angle as the wedge-shaped front end of the upper insulating head (131); the discharge tip (112) is toothed and each toothed discharge tip (112) is correspondingly clamped into each working electrode mounting hole (1311) of the upper insulating head (131).

8. The plasma surgical electrode for treating rhinitis according to claim 6, characterized in that, The surface of the discharge tip (112) is provided with a conductive metal layer.

9. The plasma surgical electrode for treating rhinitis according to claim 1, characterized in that, The outer tube (22) is fitted with a PI tube (23), and the outer surfaces of both the outer tube (22) and the PI tube (23) are provided with an anti-reflective layer or film.

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