Improved endoscope

Abstract

The utility model discloses an improved endoscope, including the image module of repeated use and the catheter of disposable use. Image module includes the cable assembly of camera module, the electromagnetic connector of built -in first magnetic attraction department and the connection port. The catheter includes the insertion part with the camera channel and the working channel and the handle with the magnetic attraction connection structure. Through the magnetic attraction mode, image module can conveniently, reliably with handle connection and butt joint power supply, and camera module reaches insertion part head end, still can be attached with front end magnetic attraction department adsorption, guarantees the imaging clear, avoided the cross infection risk, solved the traditional endoscope butt joint inconvenient, the connection unreliable, the field of vision different step and the problem that the slide is easy to fall off.

Description

Technical Field

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

[0002] An endoscope is a routine medical instrument, mainly composed of an operating section and an insertion section. The insertion section includes an insertion tube, a curved section, and a tip. Endoscopes are used by inserting them into the body through natural openings or small surgical incisions. During use, the insertion tube of the endoscope is guided into the organ to be examined, allowing direct visualization of changes in the relevant area.

[0003] Reusable endoscopes are expensive because they require repeated use. To prevent cross-infection between patients, each endoscope undergoes a strict and complex disinfection procedure, which is time-consuming and costly. Furthermore, the cleaning and disinfection process can damage the endoscope, leading to high maintenance and repair costs. The extremely high cost of reusable endoscopes limits their market application. For example, during urinary catheter removal, the routine procedure does not involve endoscopy because the condition of the bladder and catheter cannot be seen, making the process very painful for the patient and potentially causing urethral bleeding. Using reusable or disposable electronic endoscopes for catheter removal would be extremely costly for patients, and the operating environment would be limited.

[0004] For disposable electronic endoscopes, the integration of image ICs, module lenses, light sources, and mechanical devices, along with the complexity of the camera assembly comprised of the module lenses, image sensors, and light sources, significantly increases the manufacturing cost. Therefore, the disposable nature of endoscopes, requiring immediate disposal after use, has resulted in persistently high costs, making it difficult to achieve a balance between disposable structure and low cost.

[0005] The prior art discloses a combined endoscope, which includes an operating component, a viewing channel tube, and an image module. The operating component includes a handle and an insertion part. The handle has an instrument channel and a suction channel, which are connected to the instrument channel. The insertion part is connected to the handle, and the instrument channel extends to and connects to the free end of the insertion part. An electrical connector is provided on the handle. The other end of the viewing channel tube extends to and connects to the free end of the insertion part, and a first viewing window slide is provided at the other end of the viewing channel tube. The image module includes a connector and a camera. The connector is detachably connected to the electrical connector, and the camera is used to insert into the viewing channel tube through the electrical connector and extend to the other end of the viewing channel tube. While the aforementioned technologies can reduce usage costs to some extent, they are insufficient in protecting the image module. Inserting the image module into the viewing channel tube is not convenient, positioning is inaccurate, and the electrical connector design makes blind insertion impossible in practical use, leading to inconvenience. Furthermore, the relative fixation between the image module and the viewing channel tube end is inadequate, relying solely on shape for fixation, which is prone to errors. This can result in desynchronization between operation and image display when the insertion tube is bent or rotated. The use of a separate first viewing window slide assembly method at the tip makes the slide prone to detachment, posing a medical hazard during use. Utility Model Content

[0006] This invention aims to address the shortcomings of the prior art by providing an improved endoscope. By designing the high-value image module as reusable and the low-value catheter part as disposable, the cost of use is significantly reduced, while the convenience and safety of use are improved.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an improved endoscope, comprising a reusable image module and a disposable conduit. The image module includes: a longitudinally extending cable assembly, a camera module located at the distal end of the cable assembly, an electromagnetic connector mounted on the cable assembly and having a first magnetic attraction portion therein, and a connection port connected to the proximal end of the cable assembly for data transmission with a host computer. The conduit includes: an insertion portion having an internal camera channel and a working channel, and a handle connected to the proximal end of the insertion portion and having a magnetic attraction connection structure. When the image module is inserted into the camera channel and the camera module reaches its distal end, the electromagnetic connector and the magnetic attraction connection structure are magnetically attracted and connected.

[0008] To address the problem of blind insertion in existing technologies, this invention adopts a magnetic docking structure; to address the issue of insufficient connection reliability, this invention adds electromagnetic locking to the magnetic attraction; to solve the problems of image asynchrony and blurring, this invention adopts a magnetic bonding and integrated transparent part design at the head end; to eliminate the risk of glass slide falling off, this invention integrally molds the front end. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the image module and conduit provided in an embodiment of the present utility model;

[0010] Figure 2 A schematic diagram of the structure of the electromagnetic connector provided in the embodiment of this utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the catheter handle portion provided in an embodiment of the present utility model;

[0012] Figure 4 A schematic diagram of the structure of the snake-bone unit of the insertion part and the front end part provided in the embodiment of this utility model (showing the state in which the image module is engaged);

[0013] Figure 5 This is a schematic diagram of the structure of the front end of the insertion part provided in an embodiment of the present utility model;

[0014] Figure 6 A schematic diagram of the axial cross-sectional structure of the insertion part provided in an embodiment of this utility model;

[0015] Figure 7 A schematic diagram of the axial cross-sectional structure of the handle portion provided in an embodiment of this utility model;

[0016] 1-Image module; 2-Conduit; 11-Cable assembly; 12-Camera module; 13-Electromagnetic connector; 14-Connection port; 131, 132-First magnetic suction part; 133, 134, 135, 136-First electromagnetic coil ejector pin contact point; 137, 138-First LED light source spring ejector pin contact point; 21-Insert part; 22-Handle; 23, 25-Pull cable; 26-Camera channel; 27-Working channel; 210-Front end; 211-Snake bone unit; 212-Instrument channel interface; 213-Suction valve; 214-Bending operation part 221, 222 - Second magnetic attraction part; 223, 224, 225, 226 - Second electromagnetic coil ejector pin contact point; 227, 228 - Second LED light source spring ejector pin contact point; 215 - Transparent window; 216, 217 - Third magnetic attraction part; 218, 219 - LED light source; 220 - Pliers hole; 201, 202 - Light source hole; 205 - Positioning hole; 207 - Bent corner rubber; 111 - Camera module cable; 112 - Camera module protective tube; 113 - Spring tube; 114 - Camera module outer tube; 115 - Elastic protective sleeve. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of this utility model, it should be understood that the terms "length", "upper", "lower", "near", "far", "front", "rear", "inner", "outer", "axial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figures 1-7 This embodiment provides an improved endoscope, including a reusable image module 1 and a disposable catheter 2. High-value components in traditional flexible endoscopes, such as the camera module 12 and the circuit board of the handle 22, are reused. Low-value consumables, such as the forceps tube, insertion tube, snake-bone unit 211, tip 210, and handle 22, are replaced with extremely low-cost tubing. This replacement, while maintaining performance, transforms these low-value consumables into disposable components, namely the reusable image module 1 and the disposable handle 22 and insertion part 21. This significantly reduces the usage cost of the disposable handle 22 and insertion part 21. It solves the problems of cumbersome disinfection, high usage cost, and limited application scenarios associated with traditional reusable endoscopes, while also greatly reducing production costs, alleviating the burden on patients, avoiding the infection risks associated with reusable endoscopes, and providing doctors with more usage scenario options.

[0020] The existing method of connecting the image module to the insertion part 21 uses an aviation plug and snap-fit ​​connection, and provides power to the head end. This new method requires consistent orientation for successful insertion during actual use, which can lead to inconsistent insertion and prevent blind insertion. This increases the doctor's preparation time.

[0021] To address the issues of cumbersome connection methods, inability to perform blind insertion, and insufficient connection reliability in existing technologies, the image module 1 provided in this embodiment includes a cable assembly 11, a camera module 12, an electromagnetic connector 13, and a connection port 14. The connection port 14 may be equipped with a plug and a main circuit board, which connects the host computer and the camera module 12 for data conversion and processing. The cable assembly 11 extends longitudinally and connects the plug, main circuit board, and camera module 12 for power supply, data transmission, etc. The camera module 12 is located at the far end of the cable assembly 11 and provides the image feed. The electromagnetic connector 13 is located on the cable assembly 11. (See [link to relevant documentation]). Figure 2 The electromagnetic connector 13 is provided with first magnetic suction parts 131 and 132; the connection port 14 is connected to the near end of the cable assembly 11, and the connection port 14 is adapted to be connected to the host to transmit data.

[0022] The conduit 2 includes an insertion part 21 and a handle 22. The insertion part 21 has a camera channel 26 for the image module 1 to pass through and a working channel 27 for objects to pass through. The handle 22 is connected to the proximal end of the insertion part 21 and has a magnetic connection structure. When the image module 1 passes through the camera channel 26 until the camera module 12 reaches the distal end of the camera channel 26, the electromagnetic connector 13 is magnetically attracted to the magnetic connection structure.

[0023] The endoscope provided by this utility model offers an improved method of use, comprising the following steps: disinfecting the front end of the electromagnetic connector 13 of the image module 1; inserting the disinfected image module 1 through the camera channel 26 on the catheter handle 22; when the electromagnetic connector 13 approaches the top of the handle 22, initial positioning and connection are automatically completed through magnetic attraction; inserting the connection port 14 of the image module 1 into the host to complete the circuit closed loop and power supply; energizing the conductive coil inside the handle 22 to generate magnetic force, enhancing the connection strength between the electromagnetic connector 13 and the handle 22; observing the internal condition through the image module 1 and performing corresponding medical operations.

[0024] Please refer to some embodiments of this utility model. Figure 3 The magnetic connection structure includes second magnetic suction parts 221 and 222 and a conductive coil. The second magnetic suction parts 221 and 222 are adapted to be magnetically connected to the first magnetic suction parts 131 and 132 of the electromagnetic connector 13. The conductive coil is disposed inside the handle 22 and is adapted to make electrical contact with the electromagnetic connector 13. When the connection port 14 is connected to the host and supplies power to the conductive coil, the conductive coil generates a magnetic force to form an enhanced electromagnetic magnetic connection with the electromagnetic connector 13. Specifically, when the image module 1 is inserted into the handle 22, it first achieves rapid adsorption and initial alignment through the permanent magnetic force between the first magnetic suction parts 131 and 132 on the electromagnetic connector 13 and the second magnetic suction parts 221 and 222 on the handle 22, thereby solving the problem of blind insertion. Subsequently, when the connection port 14 is connected to the host power supply, current flows through the conductive coil inside the handle 22 and generates a strong magnetic field. This magnetic field interacts with the electromagnetic connector 13, forming an electromagnetic attraction force far exceeding that of purely mechanical latches or permanent magnets, thus achieving a final and secure lock-in, solving the problems of connection strength and accidental separation during operation. This phased connection mechanism ensures both ease of operation and absolute reliability in clinical procedures.

[0025] Please refer to some embodiments of this utility model. Figure 4 and Figure 5 The front end of the insertion part has a transparent window 215 and third magnetic suction parts 216 and 217. The transparent window 215 is formed at the far end of the camera channel 26. In this way, the camera module can capture images through the transparent window while avoiding contamination from external objects. The third magnetic suction parts 216 and 217 can magnetically engage with the camera module 12, so that the imaging plane of the camera module 12 is tightly attached to the inner side of the transparent window 215. Automatic magnetic attraction and calibration ensure a seamless fit between the imaging plane of the camera module 12 and the inner wall of the transparent window 215. In some specific embodiments, the camera module 12 has a metal shell. Through the magnetic attraction of the third magnetic suction parts 216 and 217 with the metal parts of the camera module, it is ensured that the objective lens of the camera module 12 remains tightly attached to the inner surface of the transparent window 215, eliminating the air gap between them. This avoids light refraction and ghosting at the air-glass interface, fundamentally improving image clarity.

[0026] In some embodiments of this utility model, the catheter 2 further includes LED light sources 218 and 219 and an LED light source connection part. The LED light sources 218 and 219 are disposed at the distal end of the insertion part 21, and the LED light source connection part is disposed within the handle 22 and electrically connected to the LED light sources 218 and 219. The LED light source connection part is adapted to electrically contact the corresponding contact within the electromagnetic connector 13 when the connection structure of the electromagnetic connector 13 and the handle 22 is aligned, thereby supplying power to the LED light sources 218 and 219. The contact connection for synchronous power transmission is completed through magnetic attraction, simplifying internal wiring and reducing the complexity and manufacturing cost of the disposable catheter 2. This achieves automatic power supply to the tip-end LED light sources 218 and 219 simultaneously with the access of the image module 1, providing intraoperative illumination without additional operation, resulting in highly efficient workflow integration.

[0027] Please refer to some embodiments of this utility model. Figure 6The cable assembly 11 includes a camera module cable 111, a camera module protective tube 112 sleeved around the camera module cable 111, a spring tube 113 sleeved around the camera module protective tube 112, and a camera module outer sleeve 114 sleeved around the spring tube 113. The multi-layered composite cable assembly 11 provides excellent axial tensile strength and radial compressive strength, protecting the internal conductors. The camera module protective tube 112 can be made of high-molecular-weight plastic tubing such as PI, PTFE, or PE, protecting the camera module cable 111. The spring tube 113 gives the cable assembly 11 good bending flexibility and shape retention, ensuring smooth operation when passing through curved instrument channels and accurately transmitting push and pull forces. The spring tube 113 is primarily made of 304 stainless steel. The outermost camera module outer sleeve 114 provides a smooth surface for easy insertion and protects the internal structure from wear; it can be a composite braided tube made of TPU with braided filaments or PEBAX with braided filaments.

[0028] In some embodiments of this utility model, the image module 1 further includes an elastic protective sleeve 115 fitted over the front end of the image module 1. The elastic protective sleeve 115 has a natural state in which it extends forward to cover and protect the camera module 12, and a tense state in which it contracts backward to expose the camera module 12 when subjected to axial pressure. This protective sleeve is co-extruded from shape memory alloy and TPU or PEBAX material. It deforms when subjected to external force. When the head of the elastic protective sleeve 115 contacts the internal step of the head of the camera module 12, the elastic protective sleeve 115 is blocked by external force, and the camera module 12 protected inside is exposed. When the image module 1 is removed for repeated use, the external force on the elastic protective sleeve 115 disappears, and under the action of the shape memory alloy, the elastic protective sleeve 115 returns to its original shape, thereby protecting the camera module 12 from damage caused by external impact when it is not inside the handle 22.

[0029] In some embodiments of this invention, the handle 22 is further provided with a suction valve 213 and an instrument channel interface 212. The suction valve 213 is connected to the working channel 27, and the instrument channel interface 212 is connected to the proximal end of the working channel 27. The integrated design of the suction valve 213 and the instrument channel interface 212 enables this flexible electronic endoscope to have multifunctional capabilities for irrigation, suction, and instrument manipulation. Doctors can perform suction to remove accumulated fluid, blood, or smoke under direct vision, or insert biopsy forceps, guidewires, baskets, and other tools through the instrument channel for interventional procedures, thus expanding its clinical application range.

[0030] In some embodiments of this invention, the insertion part 21 includes a flexible snake-bone unit 211 and a curved rubber 207 covering the snake-bone unit 211. The snake-bone unit 211 is connected to a bending operation part 214 provided on the handle 22 via pull wires 23 and 25 to perform bending operations on the snake-bone unit 211. The structure of the snake-bone unit 211 provides flexible and controllable bending performance, allowing the doctor to manipulate the tip of the insertion part 21 to turn within the human body cavity and reach the target area. The outer curved rubber 207 smoothly covers the snake-bone joint gaps, preventing soft tissue from being pinched during bending and improving the safety of the operation.

[0031] In some embodiments of this utility model, the front end portion 210 of the insertion part 21 is an integral transparent component, which has a positioning hole 205 for positioning the head end of the camera module 12 and closing the front end, a clamping hole 220 constituting the front end of the working channel 27, light source holes 201 and 202 for mounting LED light sources 218 and 219, and mounting positions 216 and 217 for mounting magnetic parts. The head end is made of integrally molded transparent PC or PE material, eliminating the need for separate assembly and bonding of glass slides, simplifying the production steps, reducing manufacturing costs, and completely avoiding the huge medical risk of separate glass slides potentially falling off and remaining in the patient's body. Its transparent integral head end provides a good field of view, and the integral structure can effectively seal the head end, protecting the camera module 12 from contamination. At the same time, its head end structure has light source holes 201 and 202 for fixing the light source, as well as hole structures communicating with the clamping tube and the camera channel tube.

[0032] Optionally, the third magnetic suction parts 216 and 217 are head-end magnetic blocks. Their main functions are: first, to block the light emitted from the LED light sources 218 and 219 through the transparent front end from affecting the camera module 12; and second, for the magnetic blocks to cooperate with the stainless steel head end of the camera module 12. When the head end of the camera module 12 is close to the transparent window, the front-end magnetic blocks can help the head end of the camera module 12 to have a good planar fit with the transparent head end. At the same time, it can ensure that the camera's field of view is consistent with the actual direction of the front end of the insertion part, and there will be no bending action that is inconsistent with the front end image.

[0033] In some examples, the handle 22 is provided with multiple second electromagnetic coil pin contact points 223, 224, 225, 226, multiple second LED light source spring pin contact points 227, 228, and multiple second magnetic attraction parts 221, 222. The electromagnetic connector 13 is provided with multiple first electromagnetic coil pin contact points 133, 134, 135, 136, multiple first LED light source spring pin contact points 137, 138, and multiple first magnetic attraction parts 131, 132. The multiple magnetic attraction parts and contact points constitute a foolproof structure, ensuring that the electromagnetic connector 13 can only be attracted and connected to the handle 22 in the only correct orientation. The coil spring pins are mainly made of conductive coils, and their function is to provide magnetic force when energized to attract and fix the electromagnetic connector 13.

[0034] In some examples, the insertion part 21 includes an insertion tube, a clamping channel tube disposed within the insertion tube, and a camera tube. The insertion tube is a composite braided tube composed of an outer TPU layer, a middle braided layer, and an inner TPU layer, or an outer PEBAX layer, a middle braided layer, and an inner PEBAX layer. Its function is to protect the remaining circuitry and tubing within the insertion tube and to provide good compressive strength and coaxiality. The clamping channel tube can be a single tube made of materials such as PE or PTFE, or a composite tube made of materials such as TPU + spring or PEBAX + spring. It constitutes the working channel 27, which can be used as an instrument channel and a suction channel. The camera tube is the camera channel 26, which can be a single tube made of materials such as PE or PTFE, or a composite tube made of materials such as TPU + spring or PEBAX + spring. Its function is to provide an entry channel for the camera module 12.

[0035] Example 1: Used in the urological catheter removal procedure:

[0036] Preoperative preparation: Prepare the main unit, reusable image module 1, and sterile packaged disposable catheter 2 (including handle 22 and insertion part 21) in sequence.

[0037] Disinfection and Assembly: Remove the disposable catheter 2. Disinfect the tip of the electromagnetic connector 13 of the reusable image module 1 with gauze soaked in medical alcohol. Then, carefully thread the cable assembly 11 of the image module 1 through the inlet of the image module channel 26 at the top of the catheter handle 22.

[0038] Blind-plug connection: When the electromagnetic connector 13 of the image module 1 approaches the top of the handle 22, no manual precise alignment is required. Relying on magnetic force, the second magnetic attraction parts 221 and 222 (magnetic blocks on the top of the handle 22) automatically engage with the first magnetic attraction parts 131 and 132 (magnetic blocks on the electromagnetic connector) inside the electromagnetic connector 13, completing a fast and accurate initial physical connection and positioning. At this moment, the contact points 227 and 228 of the second LED light source spring pins on the handle 22 and the coil spring pins (contacts of the conductive coil on the top of the handle) accurately contact the corresponding circuit contacts inside the electromagnetic connector 13, achieving electrical conduction.

[0039] Power-on locking: Insert the connection port 14 (plug) at the end of the image module 1 into the main unit. After the main unit starts to supply power, current flows into the conductive coil at the top of the handle 22. When the coil is energized, it generates a strong magnetic field, which forms a strong electromagnetic attraction with the metal structure of the electromagnetic connector 13, locking the two firmly. This additional force effectively prevents the connection from accidentally coming loose due to pulling during subsequent operations.

[0040] Inspection and Operation: After the circuit is fully connected, the LED light sources 218 and 219 at the foremost tip of the insertion part 21 illuminate to provide illumination, and the camera module 12 begins to acquire and transmit real-time images to the host display. Before the insertion part enters the human body, the operator can connect the syringe to the instrument channel interface 212 and test the flushing function, and simultaneously connect the negative pressure suction device to the suction valve 213 to test the suction function. After confirming that the image is clear, the illumination is normal, and all functions are normal, the insertion part 21 can be inserted into the target area (such as the bladder) through the body's natural cavities (such as the urethra). If the field of vision is unclear during the operation, flushing or suction operations can be performed at any time.

[0041] Direct visualization during catheter removal: Under high-definition direct visualization, the bending operation part 214 (such as a trigger and a turntable) on the operating handle 22 controls the movement of the bending part of the snake bone unit 211 by pulling the pull wires 23 and 25, accurately locates and confirms the position and status of the urinary catheter, and then safely performs catheter removal or related operations.

[0042] Postoperative care: After all procedures are completed, the disposable handle 22 and insertion part 21 will be disposed of as medical waste according to regulations. The reusable image module 1 will be removed by professionals, sterilized and stored for future use.

[0043] Example 2: Used in respiratory airway management and diagnostic procedures:

[0044] Preparation and Assembly: Prepare the main unit, reusable image module 1, disposable catheter 2 (designed specifically for the airway), and any necessary accessories such as biopsy forceps, cell brushes, and nebulizers. The sterilization of catheter 2, insertion of image module 1, and magnetoelectric docking locking procedures are exactly the same as in Example 1, demonstrating the platform's excellent versatility and ease of use.

[0045] Entering the airway: The assembled endoscope system is inserted into the patient's airway through the working channel of the endotracheal tube or bronchoscope.

[0046] Direct vision diagnosis and treatment:

[0047] Inspection and suction: Under the high-definition view provided by camera module 12, carefully observe the condition inside the airway. If secretions (sputum) are found, the negative pressure suction device connected to the suction valve 213 can be directly turned on for suction.

[0048] Interventional instruments: For viscous sputum plugs or when tissue biopsy is required, biopsy forceps or cell brushes can be inserted through instrument channel interface 212 to grasp, clean or sample under direct vision.

[0049] Local treatment: When medication needs to be administered to a specific bronchial area, the nebulizer can be connected to the instrument channel interface 212 to precisely spray the medication onto the lesion under camera monitoring.

[0050] Postoperative care: After the treatment, the two parts of the disposable catheter are discarded directly to prevent cross-infection; the image module part 1 is disinfected and kept for future use.

[0051] In the description of this specification, the references to terms such as "embodiment," "specific embodiment," and "example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. An improved endoscope, characterized in that, This includes reusable image modules and disposable conduits; The image module includes: A cable assembly that extends in the longitudinal direction; The camera module is located at the far end of the cable assembly; An electromagnetic connector is disposed on a cable assembly, and the electromagnetic connector is provided with a first magnetic attraction part; A connection port, which connects to the proximal end of a cable assembly, the connection port being adapted to connect to a host for data transmission; The catheter includes: The insertion section has a camera channel for the image module to pass through and a working channel for instruments to pass through and perform suction. The handle is connected to the proximal end of the insertion part, and the handle is provided with a magnetic connection structure; when the image module is inserted into the camera channel until the camera module reaches the far end of the camera channel, the electromagnetic connector is magnetically attracted and connected to the magnetic connection structure.

2. The endoscope according to claim 1, characterized in that, The magnetic connection structure includes: The second magnetic attraction part is adapted to be magnetically connected to the first magnetic attraction part of the electromagnetic connector; A conductive coil is disposed inside the handle. The conductive coil is adapted to make electrical contact with an electromagnetic connector. When the connection port is connected to the host and supplies power to the conductive coil, the conductive coil generates a magnetic force to form an enhanced electromagnetic attraction connection with the electromagnetic connector.

3. The endoscope according to claim 1, characterized in that, The front end of the insertion portion has: A transparent window, located at the far end of the camera corridor, The third magnetic attraction part is used to magnetically engage the camera module so that the imaging plane of the camera module is in close contact with the inner side of the transparent window.

4. The endoscope according to claim 1, characterized in that, The conduit further includes: an LED light source disposed at the distal end of the insertion portion; an LED light source connection portion disposed within the handle and electrically connected to the LED light source; the LED light source connection portion is adapted to make electrical contact with the electromagnetic connector, thereby supplying power to the LED light source.

5. The endoscope according to claim 1, characterized in that, The cable assembly includes: Camera module cable; camera module protective tube sleeved outside the camera module cable; spring tube sleeved outside the camera module protective tube; camera module outer sleeve sleeved outside the spring tube.

6. The endoscope according to claim 1, characterized in that, The image module also includes an elastic protective sleeve fitted over its front end. The elastic protective sleeve has a natural state in which it extends forward to cover and protect the camera module, and a tense state in which it contracts backward to expose the camera module when subjected to axial pressure.

7. The endoscope according to claim 1, characterized in that, The handle is also equipped with a suction valve and an instrument channel interface. The suction valve is connected to the working channel, and the instrument channel interface is connected to the proximal end of the working channel.

8. The endoscope according to claim 1, characterized in that, The insertion part includes a flexible snake-bone unit and a curved rubber covering the snake-bone unit. The snake-bone unit is connected to a bending operation part provided on the handle by a pull wire to perform bending operation on the snake-bone unit.

9. The endoscope according to claim 3, characterized in that, The front end of the insertion part is a one-piece transparent part, which is provided with a positioning hole for positioning the head end of the camera module, a clamping hole forming the far end of the working channel, a light source hole for installing the LED light source, and a mounting position for installing the third magnetic suction part.

10. The endoscope according to claim 2, characterized in that, The handle is provided with multiple second electromagnetic coil pin contact points, multiple second LED light source spring pin contact points, and multiple second magnetic attraction parts; the electromagnetic connector is provided with multiple first electromagnetic coil pin contact points, multiple first LED light source spring pin contact points, and multiple first magnetic attraction parts.

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