Ablation electrode dissector capable of keeping constant distance

Abstract

The utility model discloses an ablation electrode dissector keeping a constant distance, which comprises an electrode holder and two forceps rods connected with the electrode holder, the end parts of the forceps rods are connected with forceps tips, a U-shaped plate is fixed on the inner side of the electrode holder, the U-shaped plate is rotatably connected with a gear, the gear is matched with a toothed plate connected with the inner sides of the forceps rods, and the toothed plate is fixed on the electrode holder. The gear comprises an upper gear and a lower gear fixed below the upper gear, the U-shaped plate is connected with a positioning mechanism used for positioning the gear, and the positioning mechanism is connected with the upper gear. The distance between the two forceps tips can be changed, the movement of the forceps rods can synchronously drive the toothed plate to move, so that the upper gear and the lower gear rotate synchronously, the pushing block is loosened, the compressed spring pushes the moving plate and the positioning arc plate to move forwards, the positioning arc plate is connected to the upper gear, and then synchronous positioning of the upper gear and the lower gear is achieved. The distance between the two forceps tips is in a positioning state, the forceps rods do not need to be operated with force all the time, time and labor are saved, and the operation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of ablation electrode dissector technology, specifically an ablation electrode dissector that maintains a constant spacing. Background Technology

[0002] The ablation electrode dissecter is a high-frequency surgical accessory required in high-frequency surgery, enabling more precise electrocoagulation hemostasis and treatment of small blood vessels and other structures. The principle is to use heating to coagulate proteins and close blood vessels; the power is automatically cut off as the tissue is heated to its coagulation and boiling points. Current is conducted between the two forceps tips; during electrocoagulation, the current flows from one forceps tip to the other. The tissue at the two forceps tips experiences the thermal effect of the current, while the tissue outside the forceps tips is minimally or unaffected, thus protecting brain tissue.

[0003] The cauterization width of the electrode dissecter is adjusted by the surgeon manually squeezing or releasing the forceps to change the distance between the two forceps tips. The surgeon must constantly apply force to maintain the cauterization width, which is prone to human error and may lead to mistakes. This width directly affects the surgical outcome; if it is too narrow, it is impossible to definitively sever the abnormal intracranial discharge, while if it is too wide, it can cause unnecessary thermal damage, directly affecting the patient's prognosis. Utility Model Content

[0004] The purpose of this invention is to provide an ablation electrode dissecter that maintains a constant spacing, which has the advantages of easy positioning of the insulating block, convenient lifting of the block, and flexible and convenient operation, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ablation electrode dissecter that maintains a constant spacing, comprising an electrode base and two forceps connected to the electrode base, wherein the ends of the forceps are connected to forceps tips, a U-shaped plate is fixed to the inner side of the electrode base, and a gear is rotatably connected to the U-shaped plate, the gear being matched with a toothed plate connected to the inner side of the forceps, and the gear including an upper gear and a lower gear fixed below the upper gear, the U-shaped plate being connected to a positioning mechanism for gear positioning, and the positioning mechanism being connected to the upper gear.

[0006] Preferably, the bottom of the lower gear is connected to a rotating shaft, and the end of the rotating shaft is rotatably connected to a U-shaped plate.

[0007] Preferably, the toothed plate is meshed with the lower gear, and the toothed plate has an arc-shaped structure.

[0008] Preferably, the positioning mechanism includes a push block, a positioning arc plate, a guide frame, a moving plate, a spring, and a spring seat. The push block is used to push the positioning arc plate to move back and forth. The positioning arc plate is matched with the upper gear. The guide frame is used to guide the positioning arc plate and the moving plate. The two ends of the spring are connected to the moving plate and the spring seat. The spring seat is fixed to the inner side of the U-shaped plate.

[0009] Preferably, the U-shaped plate is provided with a guide hole, and the pushing block is slidably connected to the guide hole.

[0010] Preferably, the guide frame is connected to the inner side of the U-shaped plate, the movable plate passes through the guide frame, and the movable plate is slidably connected to the guide frame.

[0011] Preferably, the pushing block is fixedly connected to the moving plate, and the pushing block is provided with an arc-shaped friction surface.

[0012] Preferably, the upper gear is rotatably connected to the U-shaped plate via a shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a positioning mechanism, allows the two forceps to be driven by hand to move closer or further apart, thereby changing the distance between the two forceps tips. The movement of the forceps can synchronously drive the toothed plate to move, causing the upper and lower gears to rotate synchronously. When the push block is released, the compressed spring pushes the moving plate and the positioning arc plate forward, so that the positioning arc plate is connected to the upper gear, thereby achieving synchronous positioning of the upper and lower gears. This facilitates locking the two forceps and ensures that the distance between the two forceps tips is in the positioned state. There is no need to constantly exert force on the forceps, saving time and effort, improving surgical results, and making it highly practical. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 for Figure 1 A partial view;

[0016] Figure 3 This is a schematic diagram of the internal structure of the U-shaped plate of this utility model;

[0017] Figure 4 for Figure 3 A partial view.

[0018] In the diagram: 1. Electrode holder; 2. Tweezer bar; 3. Tweezer tip; 4. Toothed plate; 5. U-shaped plate; 6. Lower gear; 7. Push block; 8. Guide hole; 9. Upper gear; 10. Positioning arc plate; 11. Guide frame; 12. Moving plate; 13. Spring; 14. Spring seat; 15. Rotating shaft. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 4 This invention provides an ablation electrode dissecter that maintains a constant spacing, comprising an electrode base 1 and two forceps 2 connected to the electrode base 1. Forceps tips 3 are connected to the ends of the forceps 2, and friction surfaces are provided on the outer sides of the forceps 2 to increase friction with the hand, facilitating the operation of the dissecter. A U-shaped plate 5 is fixed to the inner side of the electrode base 1, and a gear is rotatably connected to the U-shaped plate 5. The gear matches a toothed plate 4 connected to the inner side of the forceps 2, and the gear includes an upper gear 9 and a lower gear 6 fixed below the upper gear 9. A positioning mechanism for gear positioning is connected to the U-shaped plate 5, and the positioning mechanism is connected to the upper gear 9.

[0021] Press or release the two tweezers 2 firmly to make the distance between the two tweezer tips 3 controllable, which can be adjusted according to the width of the electrocautery.

[0022] Once the two forceps tips 3 are at a suitable distance, release the push block 7. The compressed spring 13 pushes the moving plate 12 and the positioning arc plate 10 forward synchronously, so that the positioning arc plate 10 connects with the upper gear 9, thereby achieving synchronous positioning of the upper gear 9 and the lower gear 6, and limiting the two forceps rods 2. This ensures that the distance between the two forceps tips 3 is in the positioning state, eliminating the need to constantly exert force on the forceps rods 2, saving time and effort, and improving the surgical effect.

[0023] The bottom of the lower gear 6 is connected to a rotating shaft 15, and the end of the rotating shaft 15 is rotatably connected to the U-shaped plate 5, while the upper gear 9 is rotatably connected to the U-shaped plate 5 via a shaft. This improves the rotational stability of the upper gear 9 and the lower gear 6, and ensures the transmission effect between the lower gear 6 and the two gear plates 4.

[0024] The gear plate 4 meshes with the lower gear 6, resulting in high transmission efficiency and ensuring a constant instantaneous transmission ratio. The gear plate 4 has an arc-shaped structure, which increases the contact area between the gear plate 4 and the upper gear 9, thus providing a good limiting and locking effect for the upper gear 9 and the lower gear 6.

[0025] The positioning mechanism includes a push block 7, a positioning arc plate 10, a guide frame 11, a moving plate 12, a spring 13, and a spring seat 14. The push block 7 is used to push the positioning arc plate 10 to move back and forth. The positioning arc plate 10 matches the upper gear 9. The guide frame 11 is used to guide the positioning arc plate 10 and the moving plate 12. The two ends of the spring 13 are connected to the moving plate 12 and the spring seat 14. The spring seat 14 is fixed to the inner side of the U-shaped plate 5. When adjusting the distance between the two tweezer tips 3, the push block 7 is pushed backward, which simultaneously drives the moving plate 12 and the positioning arc plate 10 to move backward, so that the positioning arc plate 10 is separated from the upper gear 9, thereby releasing the two tweezer rods 2. At this time, the spring 13 is in a compressed state, which facilitates the control of the distance between the two tweezer tips 3. Once the distance between the two tweezer tips 3 is appropriate, the push block 7 is released, and the compressed spring 13 pushes the moving plate 12 and the positioning arc plate 10 to move forward synchronously, so that the positioning arc plate 10 is connected to the upper gear 9, thereby limiting the upper gear 9 and the lower gear 6, preventing the two tweezer rods 2 from moving, and ensuring that the distance between the two tweezer tips 3 is constant. The operation is flexible and convenient, and the applicability is strong.

[0026] The U-shaped plate 5 is provided with a guide hole 8, and the push block 7 is slidably connected to the guide hole 8. The guide hole 8 guides the push block 7. In conjunction with the use of the guide frame 11, the stability of the reciprocating movement of the positioning arc plate 10 and the moving plate 12 is improved, and the positioning arc plate 10 is conveniently and accurately connected to the upper gear 9.

[0027] The guide frame 11 is connected to the inner side of the U-shaped plate 5, and the movable plate 12 passes through the guide frame 11 and is slidably connected to the guide frame 11.

[0028] The push block 7 is fixedly connected to the moving plate 12, and the push block 7 is provided with an arc-shaped friction surface, which can increase the friction force with the hand and facilitate the operation of the push block 7.

[0029] Working principle: Pressing or releasing the tweezers 2 changes the distance between the two tweezer tips 3, allowing for selection of an appropriate distance based on the electrocautery width. During operation, first apply a backward pushing force to the pushing block 7, causing it to push the moving plate 12 and positioning arc plate 10 backward. The positioning arc plate 10 separates from the upper gear 9, at which point the spring 13 is compressed, releasing the upper gear 9 and lower gear 6, facilitating operation of the two tweezers 2. Once the distance between the two tweezer tips 3 is appropriate, release the pushing block 7. The compressed spring 13 drives the moving plate 12 and positioning arc plate 10 forward, connecting the positioning arc plate 10 with the upper gear 9. This locks and positions the upper gear 9 and lower gear 6, preventing movement of the two gear plates 4 and ensuring the two tweezers 2 are locked in place. This eliminates the need for constant force application to the tweezers 2, saving time and effort, and offering wide applicability.

[0030] 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. An ablation electrode dissector maintaining constant distance, comprising an electrode holder (1) and two forceps stems (2) connected to the electrode holder (1), the end of the forceps stem (2) is connected with a forceps tip (3), characterized in that, A U-shaped plate (5) is fixed on the inner side of the electrode holder (1). A gear is rotatably connected to the U-shaped plate (5). The gear matches the toothed plate (4) connected to the inner side of the tweezers (2). The gear includes an upper gear (9) and a lower gear (6) fixed below the upper gear (9). A positioning mechanism for gear positioning is connected to the U-shaped plate (5). The positioning mechanism is connected to the upper gear (9).

2. The ablation electrode dissecter maintaining a constant spacing according to claim 1, characterized in that, The bottom of the lower gear (6) is connected to a rotating shaft (15), and the end of the rotating shaft (15) is rotatably connected to a U-shaped plate (5).

3. The ablation electrode dissecter maintaining a constant spacing according to claim 2, characterized in that, The toothed plate (4) is meshed with the lower gear (6), and the toothed plate (4) has an arc-shaped structure.

4. The ablation electrode dissecter maintaining a constant spacing according to claim 1, characterized in that, The positioning mechanism includes a push block (7), a positioning arc plate (10), a guide frame (11), a moving plate (12), a spring (13), and a spring seat (14). The push block (7) is used to push the positioning arc plate (10) to move back and forth. The positioning arc plate (10) is matched with the upper gear (9). The guide frame (11) is used to guide the positioning arc plate (10) and the moving plate (12). The two ends of the spring (13) are connected to the moving plate (12) and the spring seat (14). The spring seat (14) is fixed to the inner side of the U-shaped plate (5).

5. The ablation electrode dissecter maintaining a constant spacing according to claim 4, characterized in that, The U-shaped plate (5) is provided with a guide hole (8), and the push block (7) is slidably connected to the guide hole (8).

6. The ablation electrode dissecter maintaining a constant spacing according to claim 4, characterized in that, The guide frame (11) is connected to the inner side of the U-shaped plate (5), and the movable plate (12) passes through the guide frame (11) and is slidably connected to the guide frame (11).

7. The ablation electrode dissecter maintaining a constant spacing according to claim 5, characterized in that, The push block (7) is fixedly connected to the moving plate (12), and the push block (7) is provided with an arc-shaped friction surface.

8. The ablation electrode dissecter maintaining a constant spacing according to claim 1, characterized in that, The upper gear (9) is rotatably connected to the U-shaped plate (5) via a shaft.

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