Directional side spraying visual system for direct spraying argon gas electrode

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a direct injection argon electrode directional side injection visual system which is characterized in that an endoscope auxiliary cap is detachably arranged at the end of an endoscope sheath tube, and a gas channel and a camera are arranged in the endoscope sheath tube; the endoscope auxiliary cap is made of transparent materials, a guide pipe is arranged on the side wall of the inner side of the endoscope auxiliary cap and provided with a guide mounting hole penetrating through the side wall of the endoscope auxiliary cap, and an injection notch is formed in the side wall of the endoscope auxiliary cap in a penetrating mode and is opposite to the guide pipe. The end part of the electrode penetrates through the guide mounting hole and is fixed on the endoscope auxiliary cap, so that the injection direction of the direct injection electrode is fixed, directional side injection is realized, and visual injection treatment of the direct injection soft electrode can be realized. In addition, the body of the electrode is fixedly arranged on the side wall of the endoscope sheathing canal, so that the electrode is fed into the human body along with the endoscope sheathing canal body.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a direct injection argon electrode directional side injection visual system. Background Art

[0002] Argon plasma coagulation (APC) is short for argon ion coagulation, which is a new non-contact endoscopic electrocoagulation technology. An argon plasma coagulation device generally consists of a high-voltage power supply, a low-voltage power supply, an oscillation unit, a power output, an electrocision and electrocoagulation selection unit, etc. The core of the argon plasma coagulation device is a transformer that converts a low-voltage and low-frequency current of 22V and (or) 50Hz into a high-frequency current with a frequency of 400 - 1000kHz and a voltage of thousands or even tens of thousands of volts through frequency conversion, voltage transformation, and power amplification. Argon is an inert gas with safety. Under the action of high voltage and high-frequency current, it is fully ionized to become argon ions with excellent conductivity, which can evenly conduct high-frequency electric energy, thus generating a uniformly distributed argon arc, conducting high-frequency current to the target tissue to produce a thermal effect, and forming a temperature of 110°C on the tissue wound surface, thereby playing a role in cutting and coagulating human tissues.

[0003] The argon electrodes of the argon gas nozzle are mainly divided into three forms according to their clinical functions: direct injection, annular injection, and side injection. Direct injection means that argon gas is directly ejected axially from the nozzle at the root of the electrode to form a linear argon plasma beam with concentrated energy and strong penetration. It is suitable for scenarios requiring high-precision operations, such as local tumor ablation or deep hemostasis. Argon gas isolates oxygen, which can reduce tissue carbonization and keep the surgical field clear. Side injection means that the argon plasma beam not only propagates axially but also laterally diffuses to cover a wider area to achieve uniform treatment. For gastrointestinal mucosal bleeding, large-area superficial lesions, etc., continuous coagulation can be achieved without direct contact, and it is suitable for uneven areas that are difficult to reach with lasers or traditional electrosurgical knives. Annular injection means that the annular injection electrode realizes 360-degree uniform injection of the argon plasma beam through the nozzle design around the end of the electrode. This design can cover the entire wound surface without rotating the electrode, especially suitable for treatments in narrow or curved cavities.

[0004] Since the direct injection electrode always faces the center of the lesion, there is no occlusion between the electrode and the treatment area in the surgical field, which is convenient for real-time observation of the coagulation depth and range. It is preferably used for punctate bleeding or superficial lesions that require precise visualization. However, the direct injection electrode can only be directly ejected axially from the nozzle at the root of the electrode and cannot achieve directional side injection, which affects the surgical efficiency and surgical effect. Summary of the Invention

[0005] The main object of the present invention is to provide a direct-injection argon electrode directional side-injection visual system. By arranging a guiding tube inside the inner side of the endoscopic auxiliary cap, and arranging an injection notch on the opposite side of the endoscopic auxiliary cap to the guiding tube, the electrode end is inserted into the guiding installation hole from the outside of the endoscopic auxiliary cap, realizing the directional side-injection of the direct-injection argon electrode. The main body of the electrode is fixedly arranged on the side wall of the endoscopic sheath tube, and then the electrode is sent into the human body together with the endoscope for treatment operations.

[0006] The technical problems to be solved by the present invention are realized by adopting the following technical solutions: A direct-injection argon electrode directional side-injection visual system, comprising an endoscopic sheath tube, an endoscopic auxiliary cap and an electrode; The endoscopic auxiliary cap is detachably arranged at the end of the endoscopic sheath tube; A gas passage and a camera are arranged inside the endoscopic sheath tube; The endoscopic auxiliary cap is made of a transparent material. A guiding tube is arranged on the inner side wall of the endoscopic auxiliary cap, and the guiding tube is provided with a guiding installation hole penetrating through the side wall of the endoscopic auxiliary cap; An injection notch is arranged through the side wall of the endoscopic auxiliary cap, and the injection notch is arranged opposite to the guiding tube; The end of the electrode passes through the guiding installation hole and is fixed on the endoscopic auxiliary cap, and the main body of the electrode is fixedly arranged on the side wall of the endoscopic sheath tube.

[0007] Preferably, the present invention further comprises a gas system, and the instrument tube is connected to the gas system; The end of the electrode is located directly in front of the gas passage. By introducing gas into the gas passage by using the gas system, the smoke generated at the end of the electrode can be dispersed, improving the clarity of the surgical field of view.

[0008] Preferably, a limiting groove connected to the guiding tube is axially arranged on the outer peripheral side wall of the endoscopic auxiliary cap, and the front end of the electrode is clamped in the limiting groove. The limiting groove on the outer peripheral side wall of the endoscopic auxiliary cap is used to fix the electrode, improving the stability of the front end of the electrode during operation; in addition, by embedding the electrode into the limiting groove, it can be avoided that the part of the electrode tube body protruding from the outer circle of the endoscopic auxiliary cap is too large and affects the entry into the cavity channel of the human body.

[0009] Preferably, the endoscopic auxiliary cap is provided with an operation cavity, and the front end of the endoscopic auxiliary cap is provided with air dispersion holes communicating with the operation cavity. By arranging air dispersion holes communicating with the operation cavity at the front end of the endoscopic auxiliary cap, the dissipation speed of the smoke in the operation cavity is further improved.

[0010] Preferably, the front end of the endoscopic auxiliary cap is designed in a conical shape. Since the front end of the endoscopic auxiliary cap is designed in a conical shape, it can protect the internal tissues of the human body during the insertion of the endoscope.

[0011] Preferably, the injection notch of the present invention includes a horizontal end face and an inclined end face, and the outlet direction of the guiding installation hole is perpendicular to the inclined end face. By providing a horizontal end face on the side of the injection notch, it is beneficial to stably place the endoscopic auxiliary cap on the surface of human tissues. The outlet direction of the guiding installation hole is perpendicular to the inclined end face, so that the front end of the electrode is perpendicular to the inclined end face to accurately inject the diseased area.

[0012] Preferably, the present invention further includes a mounting cap, and the mounting cap includes a limiting plate and a clamping portion matching the injection notch; A limiting portion matching the guiding installation hole is provided on the limiting plate. The mounting cap is clamped on the injection notch by the clamping portion, so that the mounting cap is connected and fixed to the endoscopic auxiliary cap; the electrode tube body is inserted into the limiting portion matching the guiding installation hole, and the insertion dimension of the electrode tube body is limited by the limiting portion, avoiding too little or too much insertion of the electrode, which affects the injection effect of the electrode, and can realize the standardized assembly of the electrode, improving the combination efficiency of the electrode and the endoscopic auxiliary cap.

[0013] Preferably, the mounting cap further includes a holding portion connected to the limiting plate. Since the volume of the mounting cap is small, in order to facilitate the assembly of the mounting cap and the endoscopic auxiliary cap, a holding portion is provided on the limiting plate to facilitate the operator to hold the mounting cap.

[0014] Preferably, the present invention further includes a sterile tape, and the body of the electrode is fixedly arranged on the side wall of the endoscopic sheath tube through a plurality of spaced sterile tapes. The electrode is fixed on the outer wall of the endoscopic sheath tube by the sterile tape, which is convenient for operation.

[0015] Preferably, the endoscopic auxiliary cap is made of polyvinyl chloride or silicone material. The endoscopic auxiliary cap is prepared from polyvinyl chloride or silicone material, ensuring that the endoscopic auxiliary cap has good elasticity, avoiding hard friction to human tissues, and being beneficial to protecting internal human tissues.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In the direct injection argon gas electrode directional side injection visual system of the present invention, the endoscopic auxiliary cap is detachably arranged at the end of the endoscopic sheath tube. A gas channel and a camera are arranged inside the endoscopic sheath tube. The endoscopic auxiliary cap is made of a transparent material. A guiding tube is arranged on the inner side wall of the endoscopic auxiliary cap. The guiding tube is provided with a guiding installation hole penetrating through the side wall of the endoscopic auxiliary cap. And a jet notch is penetratingly arranged on the side wall of the endoscopic auxiliary cap. The jet notch is arranged opposite to the guiding tube. By passing the end of the electrode through the guiding installation hole and fixing it on the endoscopic auxiliary cap, the injection direction of the direct injection electrode is fixed, realizing directional side injection, and the visual injection treatment of the direct injection soft electrode can be realized.

[0017] In addition, in the present invention, the main body of the electrode is fixedly arranged on the side wall of the endoscope sheath tube, so that the electrode is sent into the human body together with the endoscope body. Description of the Drawings

[0018] Figure 1 FIG. is a schematic structural diagram of the direct-injection argon electrode directional side-injection visual system described in the present invention; Figure 2 FIG. is a perspective view of the direct-injection argon electrode directional side-injection visual system according to an embodiment of the present invention; Figure 3 FIG. is a schematic structural diagram of the endoscope auxiliary cap according to an embodiment of the present invention; Figure 4 FIG. is a perspective view of the endoscope auxiliary cap according to an embodiment of the present invention; In the figure, 1 is an endoscope sheath tube, 2 is an endoscope auxiliary cap, and 3 is an electrode; 11 is a gas channel, and 12 is a camera; 21 is a guide tube, 211 is a guide mounting hole, and 22 is a spray notch; 4 is a gas system; 23 is a limit groove, 100 is an operation cavity, 24 is a ventilation hole, and 25 is a plug hole; 221 is a horizontal end face, and 222 is an inclined end face; 5 is a mounting cap, 51 is a limit plate, 52 is a clamping portion, 53 is a limit portion, and 54 is a gripping portion; 6 is a sterile tape. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings.

[0020] As Figures 1-4 shown, a direct-injection argon electrode directional side-injection visual system includes an endoscope sheath tube 1, an endoscope auxiliary cap 2, and an electrode 3.

[0021] The endoscope auxiliary cap 2 is detachably arranged at the end of the endoscope sheath tube 1 through the plug hole 25.

[0022] A gas channel 11 and a camera 12 are arranged in the endoscope sheath tube 1. The gas channel 11 runs through the endoscope sheath tube 1 along the axial direction of the endoscope sheath tube 1, and the camera 12 is embedded at the front end of the endoscope sheath tube 1 and is connected to the outside through a wire arranged in the endoscope sheath tube 1.

[0023] The endoscope auxiliary cap 2 is made of a transparent material, and the endoscope auxiliary cap 2 is made of polyvinyl chloride or silica gel.

[0024] A guide tube 21 is provided on the inner side wall of the endoscope assisting cap 2. The guide tube 21 is provided with a guide mounting hole 211 penetrating through the side wall of the endoscope assisting cap 2. The inner diameter of the guide mounting hole 211 matches the outer diameter of the electrode 3.

[0025] A spraying notch 22 is penetratingly provided on the side wall of the endoscope assisting cap 2. The spraying notch 22 is disposed opposite to the guide tube 21. The outlet direction of the guide mounting hole 211 forms an angle with the axis of the endoscope sheath 1, and the outlet direction of the guide mounting hole 211 is away from the front end of the endoscope sheath 1.

[0026] The end of the electrode 3 passes through the guide mounting hole 211 and is fixed on the endoscope assisting cap 2, and the body of the electrode 3 is fixedly provided on the side wall of the endoscope sheath 1. The end of the electrode 3 protrudes from the guide tube 21.

[0027] As Figure 1 shown, the direct-injection argon electrode directional side-injection visual system further includes a gas system 4, and the instrument tube 11 is connected to the gas system 4.

[0028] The end of the electrode 3 is located directly in front of the gas passage 11.

[0029] As Figure 2 and Figure 3 shown, a limiting groove 23 connected to the guide tube 21 is axially provided on the outer circumferential side wall of the endoscope assisting cap 2, and the front end of the electrode 3 is clamped in the limiting groove 23.

[0030] As Figure 3 shown, the endoscope assisting cap 2 is provided with an operation cavity 100 communicating with the insertion hole 25, and the front end of the endoscope assisting cap 2 is provided with air dispersion holes 24 communicating with the operation cavity 100.

[0031] The front end of the endoscope assisting cap 2 is designed in a conical shape, and the outer wall of the endoscope assisting cap 2 is designed as a curved surface.

[0032] As Figure 3 shown, the spraying notch 22 includes a horizontal end face 221 and an inclined end face 222, and the outlet direction of the guide mounting hole 211 is perpendicular to the inclined end face 222. The horizontal end face 221 is parallel to the axis of the endoscope assisting cap 2, and the inclined end face 222 forms a certain angle with the axis of the endoscope assisting cap 2.

[0033] As Figure 1 and Figure 2 shown, the direct-injection argon electrode directional side-injection visual system further includes a mounting cap 5, and the mounting cap 5 includes a limiting plate 51 and a clamping portion 52 matching the spraying notch 22.

[0034] The limiting plate 51 is provided with a limiting portion 53 matching the guide mounting hole 211.

[0035] The mounting cap 5 further includes a gripping portion 54 connected to the limiting plate 51.

[0036] As Figure 1 shown, the direct injection argon electrode directional side spray visual system further includes a sterile tape 6, and the body of the electrode 3 is fixedly arranged on the side wall of the endoscope sheath tube 1 through a plurality of spaced sterile tapes 6.

[0037] Assembly method of the direct injection argon electrode directional side spray visual system of the present invention: First, since the endoscope auxiliary cap 2 is made of an elastic material, the endoscope auxiliary cap 2 is installed at the end of the endoscope sheath tube 1.

[0038] Then, the mounting cap 5 is organized onto the injection notch 22 of the endoscope auxiliary cap 2. Next, the working end of the electrode 3 is inserted into the guiding installation hole 211 so that the front end of the electrode 3 contacts the limiting portion 53 to position the front end of the electrode 3. After the electrode 3 is installed in place, the endoscope auxiliary cap 2 is rotated so that the front end of the electrode 3 is located directly in front of the gas passage 11.

[0039] Finally, the portion of the electrode 3 outside the guiding installation hole 211 is bent, and the electrode 3 and the endoscope sheath tube 1 are wound and fixed together by the sterile tape 6. A plurality of sterile tapes 6 are arranged along the axial direction of the endoscope sheath tube 1 to ensure that the electrode 3 is closely attached to the endoscope sheath tube 1.

Claims

1. A direct-injection argon gas electrode directional side-injection visual system, characterized in that: It includes an endoscope sheath (1), an endoscope auxiliary cap (2), and an electrode (3); The endoscope auxiliary cap (2) is detachably arranged at the end of the endoscope sheath (1); A gas channel (11) and a camera (12) are arranged inside the endoscope sheath (1); The endoscope auxiliary cap (2) is made of a transparent material. A guide tube (21) is arranged on the inner side wall of the endoscope auxiliary cap (2), and the guide tube (21) is provided with a guide mounting hole (211) penetrating through the side wall of the endoscope auxiliary cap (2); A spraying notch (22) is arranged through the side wall of the endoscope auxiliary cap (2), and the spraying notch (22) is arranged opposite to the guide tube (21); The end of the electrode (3) passes through the guide mounting hole (211) and is fixed on the endoscope auxiliary cap (2), and the body of the electrode (3) is fixedly arranged on the side wall of the endoscope sheath (1).

2. The direct-injection argon electrode directional side-injection visual system according to claim 1, wherein: It further includes a gas system (4), and the instrument tube (11) is connected to the gas system (4); The end of the electrode (3) is located directly in front of the gas channel (11).

3. The direct injection argon gas electrode directional side injection visual system according to claim 1, characterized in that: A limiting groove (23) connected to the guide tube (21) is arranged axially on the outer side wall of the endoscope auxiliary cap (2), and the front end of the electrode (3) is clamped in the limiting groove (23).

4. The direct injection argon electrode directional side injection visual system according to claim 1, characterized in that: The endoscope auxiliary cap (2) is provided with an operation cavity (100), and an air vent hole (24) communicating with the operation cavity (100) is arranged at the front end of the endoscope auxiliary cap (2).

5. The direct injection argon electrode directional side injection visual system according to claim 1, characterized in that: The front end of the endoscope auxiliary cap (2) is designed in a conical shape.

6. The direct-injection argon electrode directional side-injection visual system according to claim 1, characterized in that: The spraying notch (22) includes a horizontal end face (221) and an inclined end face (222), and the outlet direction of the guide mounting hole (211) is perpendicular to the inclined end face (222).

7. The direct injection argon electrode directional side injection visual system according to claim 1, characterized in that: It further includes a mounting cap (5), and the mounting cap (5) includes a limiting plate (51) and a clamping portion (52) matching the spraying notch (22); A limiting portion (53) matching the guide mounting hole (211) is arranged on the limiting plate (51).

8. The direct injection argon gas electrode directional side injection visual system according to claim 7, characterized in that: The mounting cap (5) further includes a holding portion (54) connected to the limiting plate (51).

9. The direct injection argon electrode directional side injection visual system according to claim 1, characterized in that: It further includes a sterile tape (6), and the body of the electrode (3) is fixedly arranged on the side wall of the endoscope sheath (1) through a plurality of spaced sterile tapes (6).

10. The direct injection argon gas electrode directional side injection visual system according to claim 1, characterized in that: The endoscope auxiliary cap (2) is made of polyvinyl chloride or silica gel material.

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