Plasma operation electrode for treating rhinitis

Abstract

The utility model discloses a plasma surgical electrode for treating rhinitis, which comprises an outer tube, a handle arranged at the rear end of the outer tube 1, a cable connector arranged on the handle, an inner tube with a cavity structure inside and connected in the outer tube in a matched manner, an electrode tip arranged at the front end of the inner tube, and a wire connected between the electrode tip and the cable connector, the cable joint is connected with the host, the electrode tip comprises an upper insulating head and a lower insulating head which are assembled into an integrated structure, a positive working electrode and a negative working electrode which are arranged on the upper insulating head and are connected with a lead, and a thermocouple for monitoring temperature, and the positive working electrode and the negative working electrode are respectively positioned on two sides of the upper insulating head. The structure is simple and reasonable, stable and reliable, assembly and disassembly are convenient, and the ablation treatment effect on the posterior lower nasal nervous tissue is effectively improved.

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. However, some surgical devices using radiofrequency electrodes to ablate lesions cannot cover the lesion area of ​​the posterior inferior nasal nerve region, resulting in incomplete ablation and poor efficacy. Utility Model Content

[0003] To address the aforementioned technical problems, this invention provides a plasma surgical electrode for treating rhinitis.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A plasma surgical electrode for treating rhinitis includes an outer tube, a handle disposed at the rear end of the outer tube, a cable connector disposed on the handle, an inner tube with an internal cavity structure and connected to the outer tube, an electrode head disposed at the front end of the inner tube, and a wire connected between the electrode head and the cable connector, wherein the cable connector is connected to the main unit.

[0005] The electrode head includes an upper insulating head and a lower insulating head assembled as an integral structure, a positive working electrode and a negative working electrode set on the upper insulating head and connected to the wire, and a thermocouple for monitoring temperature. The positive working electrode and the negative working electrode are located on both sides of the upper insulating head, respectively.

[0006] Furthermore, the upper insulating head includes a wedge-shaped seat and a cylinder integrally connected to the wedge-shaped seat. Multiple limiting blocks are respectively provided on the top two sides of the wedge-shaped seat, and limiting posts are respectively provided on the bottom two sides of the wedge-shaped seat. A slot is formed between adjacent limiting blocks, and a cavity is formed between the limiting posts and the limiting blocks. The cylinder has an installation cavity for the wire and inner tube to pass through, and the cylinder is provided with a stepped groove for the lower insulating head to engage.

[0007] Furthermore, the upper end of the wedge-shaped seat is inclined towards the lower end face of the wedge-shaped seat.

[0008] Furthermore, the lower insulating head includes a wedge-shaped portion, a wedge-shaped groove formed in the wedge-shaped portion and matching the wedge-shaped seat, a snap-fit ​​post set in the wedge-shaped groove and matching the snap-fit ​​groove of the upper insulating head, and a plug-in end set on the rear end face of the wedge-shaped portion, the plug-in end being plugged into the stepped groove of the upper insulating head.

[0009] Furthermore, both the positive and negative working electrodes include an electrode sheet, multiple electrode tips disposed on the upper end face of the electrode sheet, and a wire connection end disposed on the lower end face of the electrode sheet. The electrode tips are engaged in the slot of the upper insulating head, and the lower end face of the electrode sheet is engaged in the cavity of the limiting post.

[0010] Furthermore, the electrode sheet and the wedge-shaped part at the front end of the upper insulating head are tilted at the same angle.

[0011] Furthermore, the outer surface of the electrode tip is coated with a conductive layer.

[0012] Furthermore, both the outer surface of the inner tube and the outer surface of the outer tube are coated with an anti-reverse layer.

[0013] This invention offers the following advantages: The plasma surgical electrode for treating rhinitis provided by this invention has a reliable and simple structure, facilitating operation within the confined space of the nasal cavity. The electrode head employs an integrated upper and lower insulating head structure, improving the overall stability and durability of the electrode head and reducing surgical risks caused by loose or detached components. Furthermore, assembly and disassembly are convenient. Simultaneously, the positive and negative working electrodes are located on opposite sides of the upper insulating head, which helps generate a more uniform and stable plasma during surgery, thereby improving surgical outcomes and resulting in better ablation treatment of the posterior inferior nasal nerve tissue. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the electrode head structure in this utility model;

[0017] Figure 4 This is a schematic diagram of the upper insulating head structure in this utility model;

[0018] Figure 5 This is a schematic diagram of the lower insulating head structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the working electrode structure in this utility model;

[0020] Figures 1 to 6The reference numerals in the attached figures are as follows: 1-outer tube, 2-handle, 3-cable connector, 4-inner tube, 5-electrode head, 6-wire, 50-upper insulating head, 51-lower insulating head, 52-positive working electrode, 53-negative working electrode, 54-thermocouple, 501-wedge seat, 502-cylinder, 503-limiting block, 504-limiting post, 505-slot, 506-slot cavity, 507-mounting cavity, 508-step groove, 509-slot groove, 510-wedge part, 511-wedge groove, 512-slot post, 513-plug end, 520-electrode plate, 521-electrode tip. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0022] like Figures 1 to 2 As shown, a plasma surgical electrode for treating rhinitis includes an outer tube 1, a handle 2 located at the rear end of the outer tube 1, a cable connector 3 located on the handle 2, an inner tube 4 with a hollow internal structure connected to the outer tube 1, an electrode head 5 located at the front end of the inner tube 4, and a wire 6 connecting the electrode head 5 and the cable connector 3. The cable connector 3 is connected to the main unit. The inner tube 4 is hollow and can accommodate the electrode and the wire 6 of the thermocouple 54. A PI tube is sleeved on the outer layer of the inner tube 4 to increase its strength. The exposed parts of the inner and outer tubes 1 are covered with heat-shrink tubing or coatings, including but not limited to Teflon coatings. The inner and outer tubes 1 extend into the handle 2 so that the wire 6 can be connected to the cable connector 3, and then connected to the main unit through the cable connector 3. To prevent reflection from affecting the observation effect of the endoscope, the outer surfaces of the inner tube 4 and the outer tube 1 are coated with an anti-reflection layer. The outer tube 1 is made of a flexible metal material, which allows for easy adjustment of the electrode angle, thereby better ablation of tissues near the posterior inferior nasal nerve.

[0023] like Figure 3 As shown, the electrode head 5 includes an upper insulating head 50 and a lower insulating head 51 assembled as a single unit, a positive working electrode 52 and a negative working electrode 53 disposed on the upper insulating head 50 and connected to the wire 6, and a thermocouple 54 for monitoring temperature. The positive working electrode 52 and the negative working electrode 53 are located on both sides of the upper insulating head 50, respectively. Both the upper insulating head 50 and the lower insulating head 51 are made of ceramic or plastic.

[0024] like Figure 4As shown, the upper insulating head 50 includes a wedge-shaped seat 501 and a cylinder 502 integrally connected to the wedge-shaped seat 501. Multiple limiting blocks 503 are respectively provided on the top two sides of the wedge-shaped seat 501. The limiting blocks 503 are square structures. Limiting posts 504 are respectively provided on the bottom two sides of the wedge-shaped seat 501. The limiting posts 504 are elongated structures. A slot 505 is formed between adjacent limiting blocks 503. A cavity 506 is formed between the limiting posts 504 and the limiting blocks 503. The cylinder 502 has an installation cavity 507 for the conductor 6 and the inner tube 4 to pass through. The cylinder 502 is also provided with a stepped groove 508 for the lower insulating head 51 to engage. The upper end of the wedge-shaped seat 501 is inclined to the lower end face of the wedge-shaped seat 501. A thermocouple 54 mounting hole is provided in the middle of the wedge-shaped seat 501.

[0025] The lower insulating head 51 is wedge-shaped and adapts to the front end of the upper insulating head 50, with its front end having a rounded corner to prevent punctures. Figure 5 As shown, the lower insulating head 51 includes a wedge-shaped portion 510, a wedge-shaped groove 511 formed in the wedge-shaped portion 510 and matching the wedge-shaped seat 501, a snap-fit ​​post 512 set in the wedge-shaped groove 511 and matching the snap-fit ​​groove 509 of the upper insulating head 50, and an insertion end 513 set on the rear end face of the wedge-shaped portion 510. The insertion end 513 is inserted into the stepped groove 508 of the upper insulating head 50, thereby enabling a stable connection between the upper insulating head 50 and the lower insulating head 51 and increasing the stability of the insulating head.

[0026] like Figure 6 As shown, both the positive working electrode 52 and the negative working electrode 53 include an electrode sheet 520, multiple electrode tips 521 disposed on the upper end face of the electrode sheet 520, and a wire connection end 522 disposed on the lower end face of the electrode sheet 520. The electrode tips 521 are engaged in the slots 505 of the upper insulating head 50, and the lower end face of the electrode sheet 520 is engaged in the cavity 506 on the limiting post 504, which improves the stability of the working electrode and increases the reliability of the entire electrode. The electrode sheet 520 has a thin sheet structure, and the electrode tips 521 have a toothed structure. The electrode sheet 520 and the wedge-shaped portion 510 at the front end of the upper insulating head 50 have the same tilt angle. The outer surface of the electrode tip 521 is coated with a conductive layer to increase conductivity and better stimulate the nasal mucosal fluid to form plasma. The wedge-shaped portion 510 at the front end of the upper insulating head 50 and the electrode sheet 520 are tilted at a certain angle (e.g., 12°) so that the electrode head 520 can better fit the tissue, thereby better ablating the tissue near the posterior inferior nasal nerve.

[0027] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A plasma surgical electrode for treating rhinitis, characterized in that, Includes an outer tube (1), a handle (2) located at the rear end of the outer tube (1), a cable connector (3) located on the handle (2), an inner tube (4) with an internal cavity structure and connected to the outer tube (1), an electrode head (5) located at the front end of the inner tube (4), and a wire (6) connecting the electrode head (5) and the cable connector (3). The cable connector (3) is connected to the host. The electrode head (5) includes an upper insulating head (50) and a lower insulating head (51) assembled as an integral structure, a positive working electrode (52) and a negative working electrode (53) disposed on the upper insulating head (50) and connected to the wire (6), and a thermocouple (54) for monitoring temperature. The positive working electrode (52) and the negative working electrode (53) are located on both sides of the upper insulating head (50).

2. The plasma surgical electrode for treating rhinitis according to claim 1, characterized in that, The upper insulating head (50) includes a wedge-shaped seat (501) and a cylinder (502) integrally connected to the wedge-shaped seat (501). Multiple limiting blocks (503) are respectively provided on the top two sides of the wedge-shaped seat (501), and limiting posts (504) are respectively provided on the bottom two sides of the wedge-shaped seat (501). A slot (505) is formed between adjacent limiting blocks (503), and a cavity (506) is formed between the limiting post (504) and the limiting block (503). The cylinder (502) has an installation cavity (507) for the conductor (6) and the inner tube (4) to pass through, and the cylinder (502) is provided with a stepped groove (508) for the lower insulating head (51) to engage.

3. The plasma surgical electrode for treating rhinitis according to claim 2, characterized in that, The upper end of the wedge-shaped seat (501) is inclined to the lower end face of the wedge-shaped seat (501).

4. The plasma surgical electrode for treating rhinitis according to claim 2, characterized in that, The lower insulating head (51) includes a wedge-shaped portion (510), a wedge-shaped groove (511) formed in the wedge-shaped portion (510) and matching the wedge-shaped seat (501), a snap-fit ​​post (512) formed in the wedge-shaped groove (511) and matching the snap-fit ​​groove (509) of the upper insulating head (50), and a plug-in end (513) formed on the rear end face of the wedge-shaped portion (510), wherein the plug-in end (513) is plugged into the stepped groove (508) of the upper insulating head (50).

5. The plasma surgical electrode for treating rhinitis according to claim 4, characterized in that, Both the positive working electrode (52) and the negative working electrode (53) include an electrode plate (520), a plurality of electrode tips (521) disposed on the upper end face of the electrode plate (520), and a wire connection end (522) disposed on the lower end face of the electrode plate (520). The electrode tips (521) are engaged in the slot (505) of the upper insulating head (50), and the lower end face of the electrode plate (520) is engaged in the cavity (506) on the limiting post (504).

6. The plasma surgical electrode for treating rhinitis according to claim 5, characterized in that, The electrode sheet (520) and the wedge-shaped part (510) at the front end of the upper insulating head (50) are tilted at the same angle.

7. The plasma surgical electrode for treating rhinitis according to claim 5, characterized in that, The outer surface of the electrode tip (521) is coated with a conductive layer.

8. The plasma surgical electrode for treating rhinitis according to any one of claims 1 to 7, characterized in that, The outer surface of the inner tube (4) and the outer surface of the outer tube (1) are both coated with an anti-reflection layer.

Images