Flexible endoscope connection cap and endoscope system

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a flexible endoscope connecting cap and endoscope system, the utility model's flexible endoscope connecting cap includes cap body, cap body is transparent material, cap body includes connecting portion and operating part, connecting portion includes the insertion hole for connecting endoscope end, operating part includes the operating cavity with the insertion hole, and the operating cavity lateral wall is provided with guide pipe and jet gap, guide pipe and jet gap are opposite and set, guide pipe sets up in operating part inboard, and is provided with the guide hole of the through operating part lateral wall, and jet gap sets up from the lateral wall of operating part, thereby can realize the soft electrode end from operating cavity outside insertion guide hole, makes straight -jet argon soft electrode can realize directional side -jet, carries out the jet therapy to human body tissue from jet gap.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a flexible endoscope connecting cap and an endoscope system. Background Technology

[0002] Endoscopic surgery has been widely adopted and applied in recent years due to its advantages such as minimal incision damage and good clinical outcomes. In endoscopic surgery, endoscopic processing devices with electrocautery units (such as electric snares) are used for procedures such as incision, cauterization, and hemostasis of biological tissues. Argon coagulation (APC) is a novel non-contact endoscopic electrocoagulation technique.

[0003] Argon gas electrodes in argon gas nozzles are mainly classified into three types based on their clinical function: direct spray, annular spray, and side spray. Direct spray refers to argon gas being directly injected axially from the nozzle at the electrode root, forming a linear argon plasma beam with concentrated energy and strong penetration. It is suitable for scenarios requiring high-precision operation, such as local tumor ablation or deep hemostasis. Argon gas isolates oxygen, reducing tissue carbonization and maintaining a clear surgical field. Side spray refers to the argon plasma beam not only propagating axially but also diffusing laterally, covering a wider area and achieving uniform treatment. For gastrointestinal mucosal bleeding and large-area superficial lesions, continuous coagulation can be achieved without direct contact, making it suitable for uneven areas that are difficult to reach with lasers or traditional electrocautery. Annular spray refers to an electrode design where the nozzle surrounds the electrode end, achieving 360-degree uniform injection of the argon plasma beam. This design can cover the entire wound surface without rotating the electrode, making it particularly suitable for treatment in narrow or curved cavities.

[0004] Because the direct-spray electrode always faces the center of the lesion, there is no obstruction between the electrode and the treatment area in the surgical field, which facilitates real-time observation of the coagulation depth and range. It is preferred for pinpoint bleeding or superficial lesions that require precise visualization. However, the direct-spray electrode can only spray directly along the axial direction along the nozzle at the base of the electrode, and cannot achieve directional side spraying, which affects the efficiency and effectiveness of the surgery. Utility Model Content

[0005] The main purpose of this invention is to provide a flexible endoscope connecting cap and endoscope system. By setting a guide tube inside the operating part of the cap body and setting a spray notch on the opposite side of the guide tube in the operating part, the soft electrode end can be inserted into the guide hole from the outside of the operating cavity to achieve directional side spraying of argon gas soft electrode. The soft electrode body is fixedly set on the side wall of the endoscope tube, and then the soft electrode is sent into the human body along with the endoscope for treatment.

[0006] The technical problem to be solved by this utility model is achieved by the following technical solution: a flexible endoscope connecting cap, including a cap body, wherein the cap body is made of transparent material; The cap body includes a connecting part and an operating part; The connecting part includes a plug hole for connecting the endoscope tip; The operating part includes an operating cavity communicating with the insertion hole. A guide tube and a spray notch are provided on the side wall of the operating cavity. The guide tube and the spray notch are arranged opposite to each other. The guide tube is located inside the operating part and has a guide hole that penetrates the side wall of the operating part. The spray notch is also located through the side wall of the operating part.

[0007] Preferably, the outer ring sidewall of the operating part is provided with a limiting groove along the axial direction, which is connected to the guide tube. The limiting groove on the sidewall of the operating part is used to fix the soft electrode, improving the stability of the soft electrode tip during operation; in addition, by embedding the soft electrode into the limiting groove, the extent to which the soft electrode tube protrudes from the outer ring of the operating part can be avoided, thus preventing it from affecting the passage into the body cavity.

[0008] In a preferred embodiment of this invention, the front end of the operating part is provided with a ventilation hole communicating with the operating chamber. By providing a ventilation hole communicating with the operating chamber at the front end of the operating part, the dissipation speed of smoke in the operating chamber is further improved.

[0009] Preferably, the front end of the operating part of this invention is tapered. Because of this tapered design, internal tissues can be protected during endoscopic insertion.

[0010] Preferably, in this invention, the spray notch includes a horizontal end face and an inclined end face, and the guide hole outlet direction is perpendicular to the inclined end face. By providing a horizontal end face on the side of the spray notch, it is beneficial to stably place the flexible endoscope connecting cap on the surface of human tissue. The guide hole outlet direction is perpendicular to the inclined end face, allowing the soft electrode tip to accurately spray onto the lesion position perpendicular to the inclined end face.

[0011] Preferably, this utility model also includes a mounting cap, which includes a limiting plate and a snap-fit ​​portion that matches the spray notch; The limiting plate is provided with a limiting part that matches the guide hole. The mounting cap is snapped onto the spray notch using the snap-fit ​​part, so that the mounting cap is connected and fixed together with the cap body; the soft electrode tube is inserted into the limiting part that matches the guide hole. The limiting part restricts the insertion size of the soft electrode tube, preventing the soft electrode from being inserted too little or too much, which would affect the spraying effect of the soft electrode. It also enables standardized assembly of the soft electrode and improves the combination efficiency of the soft electrode and the endoscope auxiliary cap.

[0012] Preferably, in this invention, the mounting cap further includes a gripping part connected to the limiting plate. Because the mounting cap is small in size, a gripping part is provided on the limiting plate to facilitate assembly of the mounting cap with the cap body, making it convenient for the operator to hold the mounting cap.

[0013] Preferably, the cap body of this invention is made of polyvinyl chloride (PVC) or silicone. Using PVC or silicone to fabricate the endoscope auxiliary cap ensures that the cap body has good elasticity, avoiding hard friction on human tissue and thus protecting internal tissues.

[0014] This utility model also discloses an endoscope system, including the aforementioned flexible endoscope connecting cap. The endoscope tube is provided with a gas channel and a camera, and the flexible endoscope connecting cap is detachably inserted into the end of the endoscope tube.

[0015] Preferably, this invention also includes a soft electrode, the front end of which is inserted into a guide hole, and the soft electrode is fixed to the outside of the endoscope tube by sterile tape.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The flexible endoscope connecting cap of this utility model includes a cap body, which is made of transparent material. The cap body includes a connecting part and an operating part. The connecting part includes an insertion hole for connecting the endoscope end. The operating part includes an operating cavity communicating with the insertion hole. A guide tube and a spray notch are provided on the side wall of the operating cavity. The guide tube and the spray notch are arranged opposite to each other. The guide tube is located inside the operating part and is provided with a guide hole that penetrates the side wall of the operating part. The spray notch is provided through the side wall of the operating part, thereby enabling the soft electrode end to be inserted into the guide hole from the outside of the operating cavity, so that the direct-injection argon electrode can achieve directional side spraying and spray treatment on human tissue from the spray notch.

[0017] The endoscope system of this invention can connect the flexible endoscope connector cap, soft electrode and endoscope tubing together to achieve visualized directional side spraying of the direct-injection argon electrode. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the flexible endoscope connecting cap of this utility model; Figure 2 This is a cross-sectional view of the flexible endoscope connecting cap described in this utility model; Figure 3 This is a perspective view of the flexible endoscope connecting cap described in this utility model; Figure 4 This is a schematic diagram of the installation cap and endoscope system described in this utility model; Figure 5 This is a cross-sectional view of the endoscope system described in this utility model; In the figure, 1 hat body; 11 Connecting part; 12 Operating part; 111 Socket, 121 Operating cavity; 13 Guide tube, 14 Injection notch, 131 Guide hole, 15 Limiting groove, 16 Air diffuser hole; 141 Horizontal end face, 142 Inclined end face; 2. Mounting cap, 21. Limiting plate, 22. Snap-fit ​​part, 23. Limiting part, 24. Holding part; 3. Soft electrode, 4. Endoscope, 41. Gas channel, 42. Camera, 5. Sterile tape. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0020] like Figures 1-3 As shown, a flexible endoscope connecting cap includes a cap body 1, which is made of transparent material.

[0021] like Figure 1 As shown, the cap body 1 includes a connecting part 11 and an operating part 12.

[0022] The connecting part 11 includes a plug hole 111 for connecting the end of the endoscope 4.

[0023] The operating part 12 includes an operating cavity 121 communicating with the insertion hole 111. A guide tube 13 and a spray notch 14 are provided on the side wall of the operating cavity 121, and the guide tube 13 and the spray notch 14 are arranged opposite to each other.

[0024] The guide tube 13 is disposed inside the operating part 12 and is provided with a guide hole 131 that penetrates the side wall of the operating part 12. The spray notch 14 is disposed that penetrates the side wall of the operating part 12.

[0025] The operating part 12 has a limiting groove 15 connected to the guide tube 13 along the axial direction on the outer ring side wall.

[0026] The front end of the operating part 12 is provided with a vent 16 that communicates with the operating cavity 121.

[0027] The front end of the operating part 12 is tapered, and the outer wall of the operating part 12 is curved.

[0028] The injection notch 14 includes a horizontal end face 141 and an inclined end face 142, and the outlet direction of the guide hole 131 is perpendicular to the inclined end face 142. The horizontal end face 141 is parallel to the axis of the flexible endoscope connecting cap, and the inclined end face 142 forms a certain angle with the axis of the flexible endoscope connecting cap.

[0029] like Figure 4 As shown, the flexible endoscope connection cap also includes a mounting cap 2, which includes a limiting plate 21 and a snap-fit ​​portion 22 that matches the jet notch 14.

[0030] The limiting plate 21 is provided with a limiting part 23 that matches the guide hole 131.

[0031] The mounting cap 2 also includes a gripping part 24 connected to the limiting plate 21.

[0032] The cap body 1 is made of polyvinyl chloride or silicone.

[0033] like Figure 4 and Figure 5 As shown, an endoscope system includes the aforementioned flexible endoscope connector cap. A gas channel 41 and a camera 42 are disposed within the endoscope tube 4. The flexible endoscope connector cap is detachably inserted into the outer side of the end of the endoscope tube 4 via a connector hole 111. The guide hole 131 has its outlet facing at an angle to the axis of the endoscope tube 4, and its outlet faces away from the front end of the endoscope tube 4. The gas channel 41 extends axially through the endoscope tube 4. The camera 42 is embedded in the front end of the endoscope tube 4 and is connected to the outside via a wire disposed within the endoscope tube 4.

[0034] The endoscopic system also includes a flexible electrode 3, the front end of which is inserted into a guide hole 131. The flexible electrode 3 is fixed to the outside of the endoscope 4 tube by sterile tape 5. The end of the flexible electrode 3 extends out from the guide tube 13. The inner diameter of the guide hole 131 matches the outer diameter of the flexible electrode 3.

[0035] In this utility model, the assembly method of the endoscope system is as follows: First, since the flexible endoscope connecting cap is made of elastic material, the flexible endoscope connecting cap is installed at the end of the endoscope 4.

[0036] Then, the mounting cap 2 is attached to the injection notch 14 of the flexible endoscope connecting cap. Next, the working end of the soft electrode 3 is inserted into the guide hole 131, so that the front end of the soft electrode 3 contacts the limiting part 23 to position the front end of the soft electrode 3. After the soft electrode 3 is installed in place, the flexible endoscope connecting cap is rotated so that the front end of the soft electrode 3 is directly in front of the gas channel 41.

[0037] Finally, bend the part of the soft electrode 3 located outside the guide hole 131, and use sterile tape 5 to wrap and fix the soft electrode 3 and the endoscope 4 tube together. Set multiple sterile tapes 5 along the axial direction of the endoscope 4 tube to ensure that the soft electrode 3 and the endoscope 4 tube are tightly attached together.

Claims

1. A flexible endoscope connector cap, characterized in that: Includes a hat body (1), wherein the hat body (1) is made of transparent material; The cap body (1) includes a connecting part (11) and an operating part (12). The connecting part (11) includes a plug hole (111) for connecting the end of the endoscope (4); The operating part (12) includes an operating cavity (121) communicating with the insertion hole (111). A guide tube (13) and a spray notch (14) are provided on the side wall of the operating cavity (121). The guide tube (13) and the spray notch (14) are arranged opposite to each other. The guide tube (13) is located inside the operating part (12) and has a guide hole (131) that penetrates the side wall of the operating part (12). The spray notch (14) penetrates the side wall of the operating part (12).

2. The flexible endoscope connector cap according to claim 1, characterized in that: The operating part (12) has a limiting groove (15) connected to the guide tube (13) along the axial direction on the outer ring side wall.

3. The flexible endoscope connector cap according to claim 1, characterized in that: The front end of the operating part (12) is provided with a vent (16) that communicates with the operating cavity (121).

4. The flexible endoscope connector cap according to claim 1, characterized in that: The front end of the operating part (12) is tapered.

5. The flexible endoscope connector cap according to claim 1 or 4, characterized in that: The spray notch (14) includes a horizontal end face (141) and an inclined end face (142), and the guide hole (131) is arranged with its outlet direction perpendicular to the inclined end face (142).

6. The flexible endoscope connector cap according to claim 1, characterized in that: It also includes a mounting cap (2), which includes a limiting plate (21) and a snap-fit ​​portion (22) that matches the spray notch (14). The limiting plate (21) is provided with a limiting part (23) that matches the guide hole (131).

7. The flexible endoscope connector cap according to claim 6, characterized in that: The mounting cap (2) also includes a gripping part (24) connected to the limiting plate (21).

8. The flexible endoscope connector cap according to claim 1, characterized in that: The cap body (1) is made of polyvinyl chloride or silicone.

9. An endoscope system, characterized in that: Includes the flexible endoscope connector cap as described in any one of claims 1 to 8, wherein the endoscope (4) tube is provided with a gas channel (41) and a camera (42), and the flexible endoscope connector cap is detachably inserted into the end of the endoscope (4) tube.

10. The endoscope system according to claim 9, characterized in that: It also includes a soft electrode (3), the front end of which is inserted into a guide hole (131), and the soft electrode (3) is fixed to the outside of the endoscope (4) tube by sterile tape (5).

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