Endoscope guiding device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to an endoscope guiding device. An endoscope guiding device comprises a guiding pipe, a handle and a camera. The guide pipe comprises a pipe body and a snake bone, one end of the pipe body is connected with the handle, the other end is connected with the snake bone, and the other end of the snake bone is connected with the camera. The handle comprises a first shell and an adjusting assembly, the adjusting assembly comprises a rocker, a control circuit and at least four sets of adjusting pieces, the control circuit is installed in the first shell, the rocker is connected with the control circuit, and the control circuit is connected with the four sets of adjusting pieces. According to the utility model, the plurality of groups of adjusting parts are arranged, and each group of adjusting parts is used for controlling the snake bone to bend in different directions, so that the adjusting parts can drive the camera to bend to a specified position through the snake bone, thereby improving the precision in the whole adjusting process and reducing the adjusting error. The problems that in the prior art, when the bending direction of the guide pipe is adjusted, the adjusting precision is low, and the adjusting error is large are solved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an endoscope guide device. Background Technology

[0002] An endoscope is a diagnostic instrument that integrates traditional optics, ergonomics, precision mechanics, modern electronics, mathematics, and software. It includes components such as an image sensor, optical lens, light source, and mechanical guidance device. During use, it can be inserted into the stomach through the mouth or other natural orifices. In the medical field, doctors use endoscopes to see lesions that cannot be detected by X-rays, thus playing a vital role. For example, doctors can use endoscopes to observe ulcers or tumors in the stomach, and then combine the endoscopic findings with the patient's condition to develop the best treatment plan.

[0003] Existing endoscope guide devices typically include an adjustment mechanism, a guide tube, and a camera. One end of the guide tube is connected to the adjustment mechanism, and the other end is connected to the camera. During use, the guide tube with the camera is inserted into the body through the mouth or other natural orifices to observe the internal structure. However, existing adjustment mechanisms generally involve manually rotating a single mechanical knob to pull a single steel wire to adjust the bending of the guide tube. This method of adjustment, where a single steel wire pulls the guide tube to bend, makes it difficult to control the direction of bending during actual adjustment. This results in the guide tube not being able to quickly bend to the desired position, leading to low adjustment accuracy and large errors throughout the process. Utility Model Content

[0004] To address the problem that the adjustment mechanism of the endoscope guide device in the prior art, which uses a manual rotation of a mechanical knob to adjust the bending direction of the guide tube, results in low adjustment accuracy and large errors throughout the adjustment process, this utility model provides an endoscope guide device.

[0005] The present utility model is implemented by the following technical solutions: An endoscope guiding device, which includes: a guiding tube, a handle, and a camera. One end of the guiding tube is connected to the handle, and the other end of the guiding tube is connected to the camera; the guiding tube includes a tube body and a snake bone. One end of the tube body is connected to the handle, the other end of the tube body is connected to one end of the snake bone, and the other end of the snake bone is connected to the camera. The camera is rotated by the bending of the snake bone; the snake bone is a cylindrical ring structure; the handle includes a housing one and an adjustment component. The end of the tube body far from the snake bone is installed on the housing one; the adjustment component includes a rocker, a control circuit, and at least four adjustment members. The control circuit is installed in the housing one. One end of the rocker passes through the housing one and is connected to the control circuit. The control circuit is respectively connected to the four adjustment members; each adjustment member includes a driving member and a connecting rope. The driving member is installed in the housing one. One end of the connecting rope is connected to the driving member, and the other end of the connecting rope is connected to the snake bone; the four connecting ropes are evenly distributed along the circumference of the tube body. The connection points of the four connecting ropes and the snake bone are the four corners of the inscribed square of the inner diameter circle of the snake bone; the control circuit is respectively connected to the four driving members. Each driving member respectively controls the telescopic movement of each connecting rope. The bending of the snake bone is controlled by the telescopic movement of the connecting rope.

[0006] As a further improvement of the present utility model, the adjustment component further includes a housing two. The four driving members are all installed in the housing two. On one side of the housing two close to the tube body, a housing three is installed. At least four limiting grooves are provided on the housing three. The four limiting grooves are respectively installed with limiting sleeves. The limiting sleeves are respectively aligned with the driving members. The end of the connecting rope far from the driving member passes through the limiting sleeve and is connected to the snake bone.

[0007] As a further improvement of the present utility model, the housing three includes a first side plate, a second side plate, and a third side plate. The first side plate and the third side plate are respectively installed at both ends of the second side plate. The first side plate, the second side plate, and the third side plate form the housing three in a "C" - shaped structure; the four limiting grooves are respectively provided on the second side plate; in the axial direction of the tube body, the distance from the second side plate to the housing two is one - half to three - quarters of the distance from the end of the tube body far from the snake bone to the housing two.

[0008] As a further improvement of the present utility model, the limiting sleeve includes a limiting sleeve body and two limiting protrusions. Each limiting protrusion extends outward integrally from the outer surface of the limiting sleeve body; a clamping groove is formed between the two limiting protrusions and the limiting sleeve body. The limiting sleeve is installed on the housing three by interference fit through the clamping groove.

[0009] As a further improvement of this utility model, the limiting sleeve body is a hollow cylindrical structure, and the inner diameter of the limiting sleeve body is larger than the diameter of the connecting rope.

[0010] As a further improvement of this utility model, the snake bone includes multiple snake bone segments, and adjacent snake bone segments are hinged together; each snake bone segment is provided with at least four arc-shaped grooves, the four arc-shaped grooves are located at the four corners of the inscribed square of the inner diameter circle of the snake bone segment, each arc-shaped groove is aligned with the limiting groove, and the connecting rope passes through the arc-shaped groove of each snake bone segment in sequence and is fixed to the snake bone segment connected to the camera.

[0011] As a further improvement of this utility model, the driving component is an electric cylinder.

[0012] As a further improvement of this utility model, the rocker includes a mounting part and a rotating part. The mounting part is installed inside the housing and connected to the control circuit. One end of the rotating part passes through the housing and is rotatably mounted on the mounting part.

[0013] As a further improvement of this utility model, the rotating part has a mushroom-shaped structure.

[0014] As a further improvement of this utility model, the guide tube also includes a flexible tube, which covers the outer surface of the tube body and the snake bone.

[0015] The technical solution provided by this utility model has the following beneficial effects:

[0016] (1) The endoscope guide device of this utility model uses multiple sets of adjusting components, each set of which controls the bending of the serpentine tube in different directions. During actual adjustment, the corresponding adjusting component can be selected according to the bending requirements of the serpentine tube, allowing the adjusting component to drive the camera to bend to a designated position via the serpentine tube. This improves the stability of the serpentine tube during bending, increases the accuracy of the entire adjustment process, and reduces adjustment errors. This solves the problem of low adjustment accuracy and large adjustment errors in the prior art when adjusting the bending direction of the guide tube by pulling a steel wire with a single mechanical knob.

[0017] (2) This utility model achieves the bending of the snake bone by using an electric cylinder to pull the connecting rope. The electric cylinder has high reliability and stability, and can maintain stable performance during long-term continuous operation. Compared with the existing technology of manually rotating a mechanical knob to pull the connecting rope, which in turn drives the guide tube to bend, the electric control method using an electric cylinder is more precise, thereby improving its adjustment accuracy. In addition, the electric cylinder can also control the stroke of the rod in the electric cylinder as needed, thereby adjusting the bending angle of the snake bone, further improving its adjustment accuracy. Attached Figure Description

[0018] Figure 1 A perspective view of the endoscope guide device provided by this utility model.

[0019] Figure 2 This is a magnified front view of the endoscope guide device provided by this utility model.

[0020] Figure 3 A partial structural diagram of the handle provided by this utility model.

[0021] Figure 4 This is a schematic diagram of the structure in which the driving component is installed inside the housing in this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the housing three installed on the housing two according to the present invention.

[0023] Figure 6 A schematic diagram of the snake bone structure provided by this utility model.

[0024] Figure 7 This is a schematic diagram of the snake bone structure provided by this utility model from another angle.

[0025] Figure 8 A top view (from the tube direction) of the snake bone provided by this utility model in an enlarged state.

[0026] The markings in the diagram are as follows: 11. Pipe body; 12. Snake bone; 121. Arc groove; 122. Limiting block; 13. Flexible hose; 21. Housing 1; 221. Mounting part; 222. Rotating part; 23. Control circuit; 241. Driving component; 242. Connecting rope; 25. Housing 2; 26. Housing 3; 261. Limiting groove; 262. First side plate; 263. Second side plate; 264. Third side plate; 265. Limiting sleeve body; 266. Limiting protrusion. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0028] This embodiment provides an endoscope guide device; please refer to... Figures 1 to 2 As shown, it includes a guide tube, a handle, and a camera (not shown in the figure). One end of the guide tube is connected to the handle, and the other end is connected to the camera. In actual operation, after the side of the guide tube with the camera is inserted into the human body, medical staff can rotate the handle to control the side of the guide tube near the camera to bend, thereby rotating the camera. The image captured by the rotating camera is used to conduct a comprehensive observation of the internal tissues of the human body.

[0029] Please refer to Figure 1 and Figure 2 The guide tube includes a tube body 11 and a snake-like structure 12. One end of the tube body 11 is connected to a handle, and the other end of the tube body 11 is connected to one end of the snake-like structure 12. The other end of the snake-like structure 12 is connected to a camera. The camera rotates by bending the snake-like structure 12. The snake-like structure 12 has a cylindrical ring structure. The cylindrical ring structure allows the snake-like structure 12 to bend in different directions, improving the flexibility during adjustment.

[0030] Understandably, the tube 11 can be made of medical-grade rubber, which possesses both flexibility and rigidity, facilitating quick insertion of the tube 11 into the human body by medical personnel. Please refer to... Figure 1 and Figure 2 The guide tube may also include a flexible tube 13, which covers the outer surface of the tube body 11 and the snake bone 12. The flexible tube 13 protects the tube body 11 and the snake bone 12 and also reduces friction between the tube body 11 and human tissue when the guide tube is inserted into the human body, thereby reducing discomfort caused to the human body during the examination.

[0031] Please refer to Figures 3 to 5The handle includes a housing 21 and an adjustment assembly. One end of the tube 11, away from the snake bone 12, is mounted on the housing 21. The adjustment assembly includes a rocker arm, a control circuit 23, and at least four sets of adjustment components. The control circuit 23 is installed inside the housing 21. One end of the rocker arm passes through the housing 21 and is connected to the control circuit 23. The tube 11 and the rocker arm are located on different sides of the housing 21. In this embodiment, the housing 21 can be a hexahedral structure. The rocker arm is mounted on the upper surface of the housing 21, and the tube 11 is mounted on the left end surface of the housing 21. Mounting the rocker arm on the upper surface of the housing 21 allows the operator to rotate it with their thumb while holding the handle. The control circuit 23 then controls the different adjustment components, thereby adjusting the rotation angle of the snake bone 12 to adjust the rotation of the camera, enabling comprehensive observation of the internal tissues of the human body. It is understood that in this embodiment, the joystick can be understood as a button that can rotate in different directions. In practical applications, the joystick can be pushed in different directions to control the control circuit 23 to connect to different adjustment components. Under the action of the adjustment components, the snake bone 12 is driven to bend in a specified direction, thereby achieving precise adjustment of the camera's rotation direction. For example, when the handle is placed horizontally, the joystick is vertically upward. When the camera needs to bend horizontally upward, simply move the joystick upward in the horizontal direction. At this time, the joystick control circuit 23 connects to the adjustment component that controls the snake bone 12 to bend horizontally upward. By driving this adjustment component, the snake bone 12 is driven to bend horizontally upward. It is understood that the control program of how the control circuit 23 controls the different driving components 241 to work can be implemented using control programs in existing technologies.

[0032] In existing technologies, the bending direction of the guide tube is adjusted by pulling a steel wire with a single mechanical knob. The combination of a single mechanical knob and a single steel wire makes it difficult to control the bending direction of the guide tube, resulting in low precision and large errors in the entire adjustment process. The key feature of this invention is the use of multiple adjusting components, each capable of controlling the snake-like frame 12 to bend in different directions. In actual operation, the desired position of the camera is determined by observation, and then a joystick is pushed according to the desired bending direction of the snake-like frame 12. The joystick controls the control circuit 23 to activate different adjusting components, thereby adjusting the snake-like frame 12 to bend in different directions. This invention, by setting adjusting components in different bending directions of the snake-like frame 12, allows for the selection of the appropriate adjusting component based on the bending requirements of the snake-like frame 12. This allows the adjusting component to guide the camera to bend to the designated position via the snake-like frame 12, thereby improving the stability of the snake-like frame 12 during bending, increasing the overall precision of the adjustment process, and reducing adjustment errors. This solves the problems of low adjustment precision and large adjustment errors inherent in existing technologies that use a single mechanical knob to pull a steel wire to adjust the bending direction of the guide tube.

[0033] In this embodiment, there are four sets of adjusting components. Please refer to [reference needed]. Figure 3Each set of adjustment components includes a drive component 241 and a connecting rope 242. One end of the connecting rope 242 is connected to its corresponding drive component 241, and the other end is connected to the snake bone 12. The four connecting ropes 242 are evenly spaced along the circumference of the tube 11, and the connection points between the four connecting ropes 242 and the snake bone 12 are the four corners of the inscribed square containing the inner diameter circle of the snake bone 12. In this embodiment, by connecting the four connecting ropes 242 to the four corners of the inscribed square containing the inner diameter circle of the snake bone 12, it is possible to control the snake bone 12 to bend along its axial direction (up, down, forward, backward) through the four drive components 241 during the adjustment process. This allows the snake bone 12 to bend quickly to the designated position, improving the bending accuracy of the snake bone 12. This facilitates the snake bone 12 to quickly bend the camera to the designated position, enabling medical personnel to better view the internal tissue structure of the human body, thereby providing a basis for formulating treatment plans. It is understood that the snake bone 12 in this embodiment can be bent in any direction. For example, if the snake bone 12 needs to be bent to the upper left, the joystick can be bent upwards first. During the adjustment process, the endoscope display screen can be observed while adjusting to see if the snake bone 12 has bent to the designated position one. This position refers to whether the snake bone 12 has bent to its upper position. This position can be determined by observing the endoscope display screen. Then, by slowly moving the joystick to the left, the drive component 241 that controls the leftward bending of the snake bone 12 can pull the connecting rope 242 connected to it. With the cooperation of the drive component 241 and the connecting rope 242, the snake bone 12 bends to the left on top of its upward bending. During this process, it is also necessary to observe the endoscope display screen while adjusting to see if the snake bone 12 has bent to the designated position two to the upper left. Once the designated position two is reached, stop moving the rocker arm. This allows for adjustment of the snake bone 12 in any direction. Through the above operation, the snake bone 12 can be bent in any direction, greatly improving its adjustment accuracy.

[0034] The driving component 241 can be an electric cylinder. During the adjustment process, the connecting rope 242 can be pulled by controlling the rod of the electric cylinder to retract into the cylinder. Under the action of the connecting rope 242, the snake bone 12 is pulled to bend. The bending of the snake bone 12 drives the camera to move to the designated position. By adjusting the position of the camera, different positions of the internal tissues of the human body can be observed. Based on the observation data, a suitable treatment plan can be formulated.

[0035] It is understandable that, in this embodiment, the use of an electric cylinder as the driving component 241 provides high reliability and stability, as well as high adjustment precision, enabling it to maintain stable performance during prolonged continuous operation. Compared to the prior art method of manually rotating a mechanical knob to pull the connecting rope 242, which in turn causes the guide tube to bend, the electric control method using an electric cylinder offers more precise control, thereby improving adjustment accuracy. Furthermore, the electric cylinder can control the stroke of the rod within it as needed, thereby adjusting the bending angle of the snake bone 12 and further enhancing adjustment precision.

[0036] It is understood that an angle sensor can also be installed on the snake bone 12 in this embodiment, which can display the bending angle of the snake bone 12. In practical applications, a series of data collected by the endoscope's camera can be used to determine the angle at which the camera needs to rotate. This angle can also be set based on the doctor's experience. Then, the control circuit 23 is connected to different driving components 241 via the handle. The driving components 241 pull the connecting rope 242 to bend the snake bone 12. During the pulling of the connecting rope 242, the angle sensor can display the bending angle of the snake bone 12 in real time. Thus, medical personnel can judge whether the camera has bent to the specified position by observing the bending angle of the snake bone 12 displayed on the endoscope screen, thereby further improving the accuracy of the bending process of the snake bone 12.

[0037] Please refer to Figure 3 The joystick includes a mounting part 221 and a rotating part 222. The mounting part 221 is installed inside the housing 21 and connected to the control circuit 23. One end of the rotating part 222 passes through the housing 21 and is rotatably mounted on the mounting part 221. The rotation of the rotating part 222 controls the electrical connection of the control circuit 23 to different electric cylinders. This allows for the control of different electric cylinders to move. These different electric cylinders, in turn, can pull the snake skeleton 12 via a connecting rope 242, thereby controlling the snake skeleton 12 to bend in different directions to rotate the camera.

[0038] The rotating part 222 can be a mushroom-shaped structure. The mushroom-shaped structure makes it easy for the operator to turn the rotating part 222 while holding the handle, thereby achieving the purpose of controlling the snake bone 12 to bend.

[0039] Please refer to Figure 4 and Figure 5, the adjusting component further includes a second housing 25, and all four driving members 241 are installed inside the second housing 25. In this embodiment, two of the driving members 241 are respectively installed above the other two driving members 241. With this arrangement, the four connecting ropes 242 connected to the four driving members 241 are independent of each other and are not interfered with each other in their moving directions, improving the stability of the driving members 241 during the process of controlling the movement of the connecting ropes 242. On one side of the second housing 25 close to the pipe body 11, a third housing 26 is installed. The third housing 26 has a "C" - shaped structure. The third housing 26 includes a first side plate 262, a second side plate 263, and a third side plate 264. The first side plate 262 and the third side plate 264 are respectively installed at both ends of the second side plate 263, and the first side plate 262, the second side plate 263, and the third side plate 264 enclose the third housing 26 with a "C" - shaped structure. At least four limiting grooves 261 are provided on the second side plate 263, and a limiting sleeve is installed in each limiting groove 261. The limiting sleeves are respectively aligned with the driving members 241, and the end of the connecting rope 242 far from the driving member 241 passes through the limiting sleeve and is connected to the snake bone 12.

[0040] Please refer to Figure 4 and Figure 5 , in the axial direction of the pipe body 11, the distance from the second side plate 263 to the second housing 25 is one - half to three - quarters of the distance from the end of the pipe body 11 far from the snake bone 12 to the second housing 25. By setting the second side plate 263 within this range, the purpose of effectively limiting the steel wire between the electric cylinder and the pipe body 11 can be achieved, thereby improving the stability of the connecting rope 242 during movement.

[0041] Please refer to Figure 5 , the limiting sleeve includes a limiting sleeve body 265 and two limiting protrusions 266. Each limiting protrusion 266 integrally extends outward from the outer surface of the limiting sleeve body 265. A clamping groove is formed between the two limiting protrusions 266 and the limiting sleeve body 265, and the limiting sleeve is installed on the second side plate 263 by interference fit through the clamping groove.

[0042] Please refer to Figure 5 , the limiting sleeve body 265 is a hollow cylindrical structure, and the inner diameter of the limiting sleeve body 265 is larger than the diameter of the connecting rope 242. This facilitates the connecting rope 242 to pass through the limiting sleeve body 265 and then extend into the pipe body 11 and be connected to the snake bone 12 located on the other side of the pipe body 11.

[0043] Please refer to Figure 5 , the cross - section of the limiting protrusion 266 is an arc - shaped structure, and the diameter of the outer circle of the limiting protrusion 266 is larger than the diameter of the limiting groove 261. Thus, under the action of the two limiting protrusions 266, the limiting sleeve is installed in the limiting groove 261 of the second side plate 263.

[0044] Understandably, please refer to Figure 5 The limiting groove 261 can be a U-shaped groove, and the width of the U-shaped groove is greater than or equal to the outer diameter of the limiting sleeve body 265, so that the limiting sleeve body 265 can pass through the U-shaped groove laterally.

[0045] Housing 1 21 includes two detachably connected housings 4. One of the housings 4 has a protrusion integrally formed from the outer surface of the housing 4. The purpose of the protrusion is to facilitate the operator's grip on the handle, thereby adjusting the bending of the snake 12 in different directions by rotating the rotating part 222. The protrusion has a mounting hole that communicates with the interior of housing 1 21. One end of the rotating part 222 passes through the mounting hole and is rotatably connected to the mounting part 221 located inside housing 1 21.

[0046] Please refer to Figures 6 to 8 The snake skeleton 12 comprises multiple segments, with adjacent segments hinged together. This hinged connection allows each segment to rotate, making the entire snake skeleton 12 more flexible and allowing it to bend in different directions under the pull of the connecting rope 242. Each segment has at least four arc-shaped grooves 121 located at the four corners of the inscribed square containing the inner diameter circle of the segment. In the axial direction of the snake skeleton 12, the arc-shaped grooves 121 on each segment are aligned with the limiting grooves 261. The connecting rope 242 passes sequentially through the arc-shaped grooves 121 of each segment and is fixed to the segment connected to the camera. Understandably, the snake-like joint connected to the camera has four limiting blocks 122, which are aligned with four arc-shaped grooves 121. Each limiting block 122 has a limiting hole. A limiting cap is located on the side of the connecting rope 242 furthest from the electric cylinder. The diameter of the limiting cap is larger than the diameter of the limiting hole. During actual installation, the end of the connecting rope 242 without the limiting cap is passed sequentially through the limiting hole, multiple arc-shaped grooves 121, the tube body 11, and the limiting sleeve body 265 before being connected to the electric cylinder. After the connecting rope 242 is connected to the electric cylinder, one end of the connecting rope 242 is fixed to the electric cylinder, and the other end of the connecting rope 242 abuts against the limiting hole under the action of the limiting cap. In this embodiment, by providing a limiting hole on the snake joint connected to the camera, the connecting rope 242 can connect each snake joint. Therefore, when the electric cylinder pulls the connecting rope 242, the connecting rope 242 can cause all the snake joints to bend to different degrees, thereby achieving the purpose of controlling the bending of the snake 12 through the connecting rope 242.

[0047] 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, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An endoscope guide device, characterized in that, It includes: The guide tube, the handle, and the camera are provided, with one end of the guide tube connected to the handle and the other end of the guide tube connected to the camera. The guide tube includes a tube body (11) and a snake bone (12). One end of the tube body (11) is connected to the handle, and the other end of the tube body (11) is connected to one end of the snake bone (12). The other end of the snake bone (12) is connected to the camera. The camera is rotated by bending the snake bone (12). The snake bone (12) has a cylindrical ring structure. The handle includes a housing (21) and an adjustment assembly. One end of the tube (11) away from the snake bone (12) is mounted on the housing (21). The adjustment assembly includes a rocker arm, a control circuit (23), and at least four sets of adjustment components. The control circuit (23) is installed inside the housing (21). One end of the rocker arm passes through the housing (21) and is connected to the control circuit (23). The control circuit (23) is connected to the four sets of adjustment components. Each set of adjustment components includes a drive element (241) and a connecting rope (242). The drive element (241) is installed inside the housing (21), and the connecting rope (242) is connected to the drive element (241). One end of the connecting rope (242) is connected to the drive member (241), and the other end of the connecting rope (242) is connected to the snake bone (12); the four connecting ropes (242) are evenly distributed along the circumference of the tube body (11), and the connection points of the four connecting ropes (242) and the snake bone (12) are the four corners of the inscribed square of the inner diameter circle of the snake bone (12); the control circuit (23) is connected to the four drive members (241) respectively, and each drive member (241) controls each connecting rope (242) to extend and retract, thereby controlling the snake bone (12) to bend through the extension and retraction of the connecting ropes (242).

2. The endoscope guide device as described in claim 1, characterized in that, The adjustment assembly also includes a second housing (25), in which the four drive components (241) are installed. A third housing (26) is installed on the side of the second housing (25) near the tube (11). The third housing (26) is provided with at least four limiting grooves (261). Each of the four limiting grooves (261) is fitted with a limiting sleeve, which is aligned with the drive component (241). The end of the connecting rope (242) away from the drive component (241) passes through the limiting sleeve and is connected to the snake bone (12).

3. The endoscope guide device as described in claim 2, characterized in that, The third housing (26) includes a first side plate (262), a second side plate (263), and a third side plate (264). The first side plate (262) and the third side plate (264) are respectively installed at both ends of the second side plate (263). The first side plate (262), the second side plate (263), and the third side plate (264) enclose the third housing (26) having a "C" - shaped structure; the four limiting grooves (261) are respectively arranged on the second side plate (263); in the axial direction of the tube body (11), the distance from the second side plate (263) to the second housing (25) is one - half to three - quarters of the distance from the end of the tube body (11) far from the snake bone (12) to the second housing (25).

4. The endoscope guide device as described in claim 3, characterized in that, The limiting sleeve includes a limiting sleeve body (265) and two limiting protrusions (266). Each limiting protrusion (266) integrally extends outward from the outer surface of the limiting sleeve body (265); a clamping groove is formed between the two limiting protrusions (266) and the limiting sleeve body (265), and the limiting sleeve is installed on the third housing (26) by interference fit through the clamping groove.

5. The endoscope guide device as described in claim 4, characterized in that, The limiting sleeve body (265) is a hollow cylindrical structure, and the inner diameter of the limiting sleeve body (265) is larger than the diameter of the connecting rope (242).

6. The endoscope guide device as described in claim 2, characterized in that, The snake bone (12) includes a plurality of snake bone joints, and adjacent two snake bone joints are hinged; at least four arc - shaped grooves (121) are provided on each snake bone joint. The four arc - shaped grooves (121) are located at the four corners of the inscribed square of the inner diameter circle of the snake bone joint. Each arc - shaped groove (121) is respectively aligned with the limiting groove (261), and the connecting rope (242) sequentially passes through the arc - shaped grooves (121) of each snake bone joint and is fixed to the snake bone joint connected to the camera.

7. The endoscope guide device as described in claim 1, characterized in that, The driving member (241) is an electric cylinder.

8. The endoscope guide device as described in claim 1, characterized in that, The rocker includes a mounting portion (221) and a rotating portion (222). The mounting portion (221) is installed in the first housing (21) and connected to the control circuit (23), and one end of the rotating portion (222) passes through the first housing (21) and is rotatably installed on the mounting portion (221).

9. The endoscope guide device as described in claim 8, characterized in that, The rotating portion (222) is a mushroom - shaped structure.

10. The endoscope guide device as claimed in claim 1, characterized in that, The guiding tube further includes a flexible tube (13), and the flexible tube (13) covers the outer surfaces of the tube body (11) and the snake bone (12).

Images