Improved soft and hard endoscope combined choledochoscope
Through the improved soft and hard lens combined with the choledoscopy, the hard and soft lens are threaded to connect the hard and soft lenses, the problem of hard choledoscopy is solved in the narrow common bile duct or common hepatic sinus tract, realizing the tortually combining the open circuit of the hard lens and the soft lens, improving the accuracy and efficiency of bile tract exploration.
Patent Information
- Application Number
- CN202421251043.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing hard and soft cholangioscopy have their own advantages and disadvantages. Hard cholangioscopy cannot be detected in narrow angles or multiple common bile ducts or common hepatic sinus tracts, and soft cholangioscopy cannot provide sufficient hardness support in narrow sinus tracts.
A modified soft and hard lens combined with a choledoscope is designed. By setting external threads on the hard choledoscope tube and internal threads on the soft lens, the two are threaded to achieve the combination of a hard choledoscope and a soft lens, forming a dual-use one-spectrum, suitable for detection of multiple common bile ducts or common hepatic sinus tracts.
It realizes that there is no need to change the lens body during biliary duct or sinus duct exploration. The hard mirror provides open circuit and the soft mirror provides tortuous support, which improves the accuracy and efficiency of the exploration. It is suitable for various liver and common bile duct stone extraction operations.
Smart Images
Figure CN223081653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of choledochoscopes, and particularly relates to an improved combined rigid and flexible choledochoscope. Background Art
[0002] When removing stones from the common bile duct, hepatic duct or through a sinus tract in daily life, usually a rigid choledochoscope or a flexible choledochoscope is used to remove stones, but each of the two choledochoscopes has its own advantages and disadvantages. The rigid choledochoscope is only applicable to the single sinus tract vision and cannot explore in the common bile duct or hepatic duct with a narrow angle or where more stones need to be removed; while when a direct exploration is required, especially in a narrow sinus tract, due to its flexible structure, the flexible choledochoscope does not have a complete rigid force entering the sinus tract. Therefore, we have developed an improved combined rigid and flexible choledochoscope. Content of the Utility Model
[0003] The main purpose of the utility model is to provide an improved combined rigid and flexible choledochoscope, which can effectively solve the problems in the background art.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0005] An improved combined rigid and flexible choledochoscope includes a main body. A head is arranged at the upper end of the main body. The outer surface of the main body is fixedly connected with a conversion port, a water inlet, a suction device connection end, a lens connection end, and a light source and optical fiber connection end in sequence from top to bottom. A rigid choledochoscope tube is arranged at the lower end of the main body, and a flexible endoscope body is connected to the outer surface of the rigid choledochoscope tube.
[0006] Preferably, an external thread is arranged at the lower part of the outer surface of the rigid choledochoscope tube.
[0007] Preferably, an internal thread is arranged on the inner wall of the flexible endoscope body.
[0008] Preferably, the flexible endoscope body is threadedly connected to the rigid choledochoscope tube through the internal thread.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] By arranging an external thread on the rigid choledochoscope tube and an internal thread on the flexible endoscope body, the flexible endoscope body and the rigid choledochoscope tube are connected together. After the combination of the two, when multiple common bile ducts or hepatic duct sinuses do not need to be explored, the rigid choledochoscope tube is used. In different common bile ducts and hepatic duct cavities where the rigid choledochoscope tube cannot turn, the head end of the rigid choledochoscope tube is directly connected to the flexible endoscope body. It can be used as two functions with one endoscope, and there is no need to replace the rigid and flexible endoscopes during the operation. When exploring the bile duct or sinus tract, it achieves the perfect combination of the rigid endoscope opening the way and the flexible endoscope being tortuous, and more accurately provides intraoperative assistance for various types of exploration and stone removal of the liver and common bile ducts, and cooperates with each area that needs to be explored in the common bile duct and hepatic duct. Brief Description of the Drawings
[0011] Figure 1 It is a schematic diagram of the overall structure of an improved combined rigid and flexible choledochoscope of the present utility model;
[0012] Figure 2 It is a schematic diagram of the overall structure of the flexible endoscope body of an improved combined rigid and flexible choledochoscope of the present utility model;
[0013] Figure 3 It is a schematic diagram of the overall structure of the rigid choledochoscope tube of an improved combined rigid and flexible choledochoscope of the present utility model.
[0014] In the figure: 1, main unit; 2, aspirator connection end; 3, conversion port; 4, head; 5, water inlet; 6, lens connection end; 7, light source and optical fiber connection end; 8, rigid choledochoscope tube; 9, flexible endoscope body; 81, external thread; 91, internal thread. Detailed Description of the Preferred Embodiment
[0015] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific embodiments.
[0016] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0017] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0018] Please refer to Figures 1-3 , the present utility model provides a technical solution:
[0019] An improved combined rigid and flexible choledochoscope, comprising a main body 1, a head 4 is arranged at the upper end of the main body 1, a conversion port 3, a water inlet 5, a suction device connection end 2, a lens connection end 6, and a light source and optical fiber connection end 7 are fixedly connected to the outer surface of the main body 1 in sequence from top to bottom. A rigid choledochoscope tube 8 is arranged at the lower end of the main body 1, and a flexible endoscope body 9 is connected to the outer surface of the rigid choledochoscope tube 8.
[0020] In this embodiment, an external thread 81 is arranged at the lower part of the outer surface of the rigid choledochoscope tube 8; an internal thread 91 is arranged on the inner wall of the flexible endoscope body 9; the flexible endoscope body 9 is threadedly connected to the rigid choledochoscope tube 8 through the internal thread 91; the inner wall structure of the flexible endoscope body 9: the tube is cylindrical, with an outer diameter ≤ 6 mm, and the inner wall is a 1-2 mm instrument channel + a 2-4 mm endoscope body itself; the inner wall structure of the rigid choledochoscope tube 8: the tube is cylindrical, with an outer diameter ≤ 5-6 mm, and the inner wall is a 1-2 mm instrument channel + a 2-4 mm endoscope body itself.
[0021] It should be noted that the present utility model is an improved combined rigid and flexible choledochoscope. During use, by arranging an external thread 81 on the rigid choledochoscope tube 8 and an internal thread 91 on the flexible endoscope body 9, the flexible endoscope body 9 and the rigid choledochoscope tube 8 are connected together. After the two are combined, when multiple common bile ducts or hepatic duct sinuses do not need to be explored, the rigid choledochoscope tube 8 is used. In different common bile ducts and hepatic duct cavities where the rigid choledochoscope tube 8 cannot bend, the head end of the rigid choledochoscope tube 8 is directly connected to the flexible endoscope body 9, which can be used as a single endoscope with two functions without replacing the rigid and flexible endoscopes during the operation. When exploring the bile duct or sinus, it achieves a perfect combination of the rigid endoscope opening the way and the flexible endoscope being tortuous, and more accurately provides intraoperative assistance for various types of hepatic and common bile duct exploration and stone extraction, and cooperates with each area that needs to be explored in the common bile duct and hepatic duct.
[0022] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. An improved combined rigid and flexible choledochoscope, comprising a main unit (1), characterized in that: The upper end of the main body (1) is provided with a head (4). The outer surface of the main body (1) is fixedly connected with a conversion port (3), a water inlet (5), a suction device connection end (2), a lens connection end (6), and a light source and optical fiber connection end (7) in sequence from top to bottom. The lower end of the main body (1) is provided with a rigid choledochoscope tube (8), and the outer surface of the rigid choledochoscope tube (8) is connected with a flexible endoscope body (9).
2. The improved combined rigid and flexible choledochoscope according to claim 1, wherein: An external thread (81) is provided on the lower part of the outer surface of the rigid choledochoscope tube (8).
3. The improved combined rigid and flexible choledochoscope according to claim 1, wherein: An internal thread (91) is provided on the inner wall of the flexible endoscope body (9).
4. An improved combined rigid and flexible choledochoscope according to claim 1, characterized in that: The flexible endoscope body (9) is threadedly connected with the rigid choledochoscope tube (8) through the internal thread (91).