Medical endoscope

Abstract

This invention discloses an electronic endoscope, relating to the field of endoscopic technology. It includes a handheld unit with a detachable interventional unit at one end. The interventional unit includes an isolation component that prevents the camera from directly contacting the human body and becoming contaminated. The isolation component includes a light-blocking seat disposed within the interventional unit, which blocks illumination light to prevent reflections. This invention uses a sheath, outer tube, tip, isolation tube, light-blocking seat, and lens to form an isolation cavity, thus preventing the camera from contacting the patient's ear canal when inserted into the ear canal, avoiding contamination and unusability, thereby reducing medical costs for patients. Furthermore, the light-blocking seat and other structures effectively prevent light reflection from the lens, thus avoiding interference with exploration. The optimized design of components such as the sheath lock and sheath seat enables rapid assembly.

Description

Technical Field

[0001] This invention relates to the field of endoscopy technology, and particularly to an electronic endoscope. Background Technology

[0002] Endoscopic surgery has been widely adopted in the field of surgery. Due to its many advantages such as being minimally invasive, having a fast recovery time, and being inexpensive, it has gradually become the preferred method of surgical treatment. The electronic endoscope used in endoscopic surgery is a medical device that integrates image sensors, lenses, and light sources. It can enter the body through natural orifices to perform surgical treatment on lesions. In the application of electronic endoscopes in the ear canal, the internal structure of the ear canal is directly captured through miniature sensors and a high-definition image processing system, enabling non-invasive and precise diagnosis and treatment.

[0003] Chinese patent application number 2024105479660 discloses a detachable endoscope. In this detachable endoscope, the proximal and distal interfaces are detachably connected within a docking compartment located on a first and / or second housing. This allows the control components located on the handle to be reused, reducing the cost of using the detachable endoscope. However, the above invention is too cumbersome to assemble; doctors must carefully confirm the insertion holes before assembly.

[0004] A multi-purpose flexible pistol-type ENT endoscope with application number 2020103722607 includes an insertion part, a front end shell, a handle body, a handle, a fourth sealing ring, a fifth sealing ring, a handheld part, and a display screen. The insertion part is located on the front side of the front end shell. This multi-purpose flexible pistol-type ENT endoscope avoids unnecessary repeated disassembly and assembly work by adjusting the position of the components, and can perform precise point treatment and insert tools such as treatment forceps through the treatment channel, realizing a multi-functional structure.

[0005] Similar to the existing technologies mentioned above, since the camera is located at the front end, it will come into contact with the human body when the endoscope is inserted into the patient's body. In order to avoid the risk of cross-infection, the camera is usually used as a disposable consumable. It cannot be recycled and reused, which is too costly. In addition, existing endoscopes have reflective properties and are difficult to assemble.

[0006] Secondly, when using existing endoscopes to treat ear canal diseases, the degree of curvature of the ear canal varies from patient to patient. When the device reaches the curvature, the rigid endoscope has difficulty continuing to explore. Although the problem can be solved by using a flexible endoscope with controllable steering, such endoscopes are too expensive and require highly skilled operators due to the sensitivity of the patient's ear canal.

[0007] Meanwhile, when using this device to explore a patient's ear canal, especially in patients with ear canal infections, there will inevitably be secretions such as cerumen in the ear canal. If secretions stick to the lens during the exploration process, it will affect the image of the lens. If the device is removed and cleaned, it will prolong the diagnosis time. Furthermore, because the nerves in the ear canal are quite sensitive, repeated removal and insertion will aggravate the patient's discomfort.

[0008] Therefore, it is necessary to invent an electronic endoscope to solve the above problems. Summary of the Invention

[0009] The purpose of this invention is to provide an electronic endoscope to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution: an electronic endoscope, including a handheld part, one end of which is provided with a detachable intervention part, the intervention part including an isolation component, the isolation component being able to prevent the camera from directly contacting the human body, the isolation component including a light-blocking seat, the light-blocking seat being disposed inside the intervention part, and the light-blocking seat being able to block the illumination light to avoid reflection.

[0011] Preferably, the interventional part further includes a sheath seat, the isolation component is disposed on the sheath seat, the isolation component further includes an outer tube, the end of the outer tube away from the sheath seat is provided with a tip seat, an isolation tube is sleeved inside the outer tube, an optical fiber is provided between the outer tube and the isolation tube, and the tip seat can be illuminated by the light emitted by the optical fiber.

[0012] Preferably, one end of the isolation tube is connected to the sheath seat and the other end is connected to the light-blocking seat. The light-blocking seat is equipped with a lens. The sheath seat, outer tube, tip seat, isolation tube, light-blocking seat and lens together form an isolation cavity to isolate the camera from the human body, so that the camera can be used multiple times.

[0013] Preferably, the handheld part includes a sheath lock, which can be detachably connected to the sheath seat. The edges of the sheath seat and the sheath lock are provided with transition rounded corners. The sheath seat and the sheath lock are provided with corresponding mounting holes for connecting the insertion part and the handheld part. The edges of the mounting holes are provided with guide angles for guiding, positioning and blind insertion installation of the assembly.

[0014] Preferably, an installation tube is sleeved inside the isolation tube, with one end of the installation tube near the light-blocking base connected to the camera, and the other end of the installation tube away from the light-blocking base passing through the sheath and connected to the handheld part.

[0015] Preferably, the handheld part further includes a handle, which is connected to the sheath lock. The handle has a hollow structure and a light source is provided inside. Multiple heat dissipation components are provided around the light source. The handle also includes an image processing module, which is electrically connected to the camera and works with the camera to process and transmit images.

[0016] Preferably, the light-emitting end of the lamp source is connected to a light-emitting element, and the end of the light-emitting element away from the lamp source passes through the handle and extends into the sheath lock. After the intervention part and the hand-held part are assembled, the light-emitting element can guide the light emitted by the lamp source to the optical fiber.

[0017] Preferably, the sheath seat is provided with a limiting ring, which can slide on the sheath seat. Both the outer tube and the tip seat have a through groove and the two through grooves are interconnected. The through groove of the outer tube is provided with a first limiting block. One end of the first limiting block passes through the outer tube and extends into the tip seat. The other end of the first limiting block is connected to the limiting ring. The first limiting block can adjust the curvature of the tip seat by moving.

[0018] Preferably, both the isolation tube and the light-blocking seat have a limiting groove, and the two limiting grooves are interconnected. The limiting groove of the isolation tube is provided with a second limiting block. One end of the second limiting block is connected to the hand-held part, and the other end extends into the light-blocking seat. The middle part of the second limiting block is provided with a plurality of connecting members in a circular array. The plurality of connecting members pass through the isolation tube and are fixedly connected to the first limiting block. The isolation tube has a clearance groove adapted to the connecting members. The second limiting block can move to adjust the curvature of the light-blocking seat by following the movement of the first limiting block.

[0019] Preferably, a limiting hole is provided on the side of the tip seat that contacts the first limiting block, and a sliding member is provided in the limiting hole. The sliding member is fixedly connected to the first limiting block. When the first limiting block moves, it can drive the sliding member to move synchronously. When the sliding member contacts the side wall of the limiting hole during the movement, the sliding member can push the tip seat to move and adjust the illumination range.

[0020] The technical effects and advantages of this invention are as follows:

[0021] 1. This invention uses a sheath base, outer tube, tip base, isolation tube, light-blocking base, and lens to form an isolation cavity, thereby preventing the camera from coming into contact with the patient's ear canal when it is inserted into the ear canal, thus avoiding the problem of the camera being contaminated and unable to be reused, thereby reducing the patient's medical expenses. At the same time, the design of the light-blocking base and other structures effectively avoids the problem of light reflecting off the lens, which affects the exploration, and the optimized design of components such as the sheath lock and sheath base enables rapid assembly.

[0022] 2. The present invention, through the setting of a light-blocking seat, a tip seat, and a first limiting block and a second limiting block, on the one hand, can adjust the curvature of the intervention part of the device by moving the first limiting block and the second limiting block, so that the device can continue to explore forward beyond the curved area of ​​the patient's ear canal. On the other hand, by reciprocating the movement of the first limiting block and the second limiting block, the front end of the device will produce a small amplitude of shaking to remove impurities remaining on the lens, thereby avoiding damage to the patient's ear canal caused by repeated insertion and removal for cleaning. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the overall structure of the intervention part of the present invention.

[0025] Figure 3 This is a schematic diagram of the exploded structure of the intervention part of the present invention.

[0026] Figure 4 This is a schematic diagram of the connection structure between the tip seat and the outer tube of the present invention.

[0027] Figure 5 This is a schematic diagram of the connection mechanism between the isolation tube and the light-shielding seat of the present invention.

[0028] Figure 6 This is a schematic diagram of the connection structure between the sheath seat and the mounting tube of the present invention.

[0029] Figure 7 This is a schematic diagram of the handheld part structure of the present invention.

[0030] Figure 8 This is a schematic diagram of the internal structure of the handheld part of the present invention.

[0031] Figure 9 This is a half-sectional schematic diagram of the tip seat and the internal structure of the outer tube of the present invention.

[0032] Figure 10 This is a half-sectional schematic diagram of the internal structure of the isolation tube and light-shielding seat of the present invention.

[0033] Figure 11 For the present invention Figure 9 Schematic diagram of the mechanism at point A.

[0034] In the diagram: 1. Handheld part; 11. Sheath lock; 12. Handle; 13. Heat dissipation component; 14. Light source; 15. Light-emitting component; 2. Intervention part; 21. Sheath seat; 22. Outer tube; 23. Tip seat; 24. Isolation tube; 25. Light blocking seat; 26. Mounting tube; 27. Lens; 28. First limiting block; 29. ​​Second limiting block; 3. Limiting ring; 4. Connecting part; 5. Limiting hole; 6. Sliding part. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] First Embodiment

[0037] To address the issues of existing electronic endoscopes, where cameras come into contact with the human body, making recycling and reuse impossible and leading to cross-infection risks and high operating costs, as well as the cumbersome assembly and reflective nature of existing electronic endoscopes, this embodiment provides an electronic endoscope that solves these problems.

[0038] like Figures 1 to 8 As shown, the electronic endoscope includes a handheld part 1, and one end of the handheld part 1 is provided with a detachable intervention part 2. The intervention part 2 includes an isolation component, which can prevent the camera from directly contacting the human body and being contaminated. The isolation component includes a light-blocking seat 25, which is disposed inside the intervention part 2 and can block the illumination light to avoid reflection.

[0039] In this embodiment, the intervention unit 2 also includes a sheath seat 21, an isolation component is disposed on the sheath seat 21, the isolation component also includes an outer tube 22, a tip seat 23 is provided at the end of the outer tube 22 away from the sheath seat 21, an isolation tube 24 is sleeved inside the outer tube 22, an optical fiber is provided between the outer tube 22 and the isolation tube 24, and the tip seat 23 can be illuminated by the light emitted by the optical fiber.

[0040] In this embodiment, one end of the isolation tube 24 is connected to the sheath seat 21, and the other end is connected to the light-blocking seat 25. The light-blocking seat 25 is provided with a lens 27. The sheath seat 21, outer tube 22, tip seat 23, isolation tube 24, light-blocking seat 25 and lens 27 together form an isolation cavity to isolate the camera from the human body, so that the camera can be used multiple times.

[0041] It should be noted that the sheath 21, outer tube 22, tip seat 23, isolation tube 24, light-blocking seat 25, and lens 27 together form an isolation cavity, which prevents the camera from coming into contact with the patient's ear canal when it enters the ear canal, thus avoiding the problem of the camera being contaminated and unable to be reused, thereby reducing the patient's medical expenses. Furthermore, using the sheath 21, outer tube 22, tip seat 23, isolation tube 24, light-blocking seat 25, and lens 27 as disposable consumables is cheaper than sterilization and can completely avoid cross-infection caused by incomplete sterilization.

[0042] In this embodiment, the handheld part 1 includes a sheath lock 11, which can be detachably connected to the sheath seat 21. The edges of the sheath seat 21 and the sheath lock 11 are provided with transition rounded corners. The sheath seat 21 and the sheath lock 11 are provided with corresponding mounting holes for connecting the intervention part 2 and the handheld part 1. The edges of the mounting holes are provided with guide angles for guiding, positioning, and quick assembly blind insertion installation, so that the device can be quickly assembled during use.

[0043] In this embodiment, an installation tube 26 is fitted inside the isolation tube 24. The end of the installation tube 26 near the light-blocking base 25 is connected to the camera, and the end of the installation tube 26 away from the light-blocking base 25 passes through the sheath base 21 and is connected to the handheld part 1. By fixing the installation tube 26 to the handheld part 1, it is convenient to install and fix the camera. On the other hand, when the handheld part 1 and the intervention part 2 are assembled, the installation tube 26 guides the installation position, which further improves the installation efficiency.

[0044] In this embodiment, the handheld part 1 also includes a handle 12, which is connected to the sheath lock 11. The handle 12 has a hollow structure and a light source 14 is provided inside the handle 12. Multiple heat dissipation components 13 are provided around the light source 14. The handle 12 also has an image processing module, which is electrically connected to the camera and works with the camera to process and transmit images.

[0045] It should be noted that an anti-slip sleeve can be fitted on the outside of the handle 12 to facilitate use by medical personnel. Multiple heat dissipation components 13 are provided inside the handle 12 to prevent medical personnel from sweating after holding it for a long time, and to cool down the light source 14 to avoid overheating and damage. Furthermore, the wires between the image processing module and the camera can be placed inside the mounting tube 26, which further improves the ease of assembly of the device and avoids the problem of wire tangling.

[0046] In this embodiment, the light-emitting end of the lamp source 14 is connected to a light-emitting element 15. The end of the light-emitting element 15 away from the lamp source 14 passes through the tube handle 12 and extends into the sheath lock 11. After the intervention part 2 and the handheld part 1 are assembled, the light-emitting element 15 can guide the light emitted by the lamp source 14 to the optical fiber. The setting of the light-emitting element 15 is to transmit the light source to the optical fiber and ensure the brightness of the light. On the other hand, by setting the light-emitting element 15 and the optical fiber separately, when there is a problem with the optical path, the source of the problem can be quickly identified and the problem can be quickly solved by disassembly and replacement.

[0047] During assembly, the device can be assembled simply by connecting and locking the sheath seat 21 to the sheath lock 11. The ease of assembly is further improved by adding transition fillets and conical guide angles to the sheath seat 21, sheath lock 11 and their outer shell.

[0048] When examining a patient's ear canal with this device, the sheath 21, outer tube 22, tip seat 23, isolation tube 24, light-blocking seat 25, and lens 27 together form an isolation cavity, which prevents the camera from coming into contact with the patient's ear canal and becoming contaminated and unusable when the camera is inserted into the patient's ear canal.

[0049] Meanwhile, since the tip holder 23 is made of a light-transmitting material, the light emitted by the optical fiber can be dispersed outward through the tip holder 23 to provide a lighting environment for the camera's image acquisition. Furthermore, since the light-blocking holder 25 is made of an opaque material, the light generated by the optical fiber cannot pass through the light-blocking holder 25 and affect the camera's image acquisition, thus effectively avoiding the problem of unclear images caused by reflections from the lens 27.

[0050] It should be noted that, in order to improve the versatility of the device, the intervention part 2 can be improved so that the device can be used in endoscopes such as hysteroscopy, spinal endoscopy, arthroscopy, ureteroscopy, and bronchoscopy.

[0051] Second Embodiment

[0052] However, in actual use, medical staff found that due to the different degrees of curvature of the ear canal among different patients, when the device reached the curvature, the rigid endoscope could not continue to explore forward. Although this problem could be solved by a flexible endoscope with controllable steering, such endoscopes are too expensive and require high operating skills from the operator due to the high sensitivity of the patient's ear canal, making the operation too difficult.

[0053] like Figures 9 to 11 As shown, to overcome the above problems, in this embodiment, the device further includes: a limiting ring 3 on the sheath seat 21, the limiting ring 3 being able to rotate and slide on the sheath seat 21; a through groove being opened in both the outer tube 22 and the tip seat 23, and the two through grooves being interconnected; a first limiting block 28 being provided in the through groove of the outer tube 22; one end of the first limiting block 28 penetrating the outer tube 22 and extending into the tip seat 23; the other end of the first limiting block 28 being connected to the limiting ring 3; and the first limiting block 28 being able to adjust the curvature of the tip seat 23 by moving.

[0054] It should be noted that both the tip seat 23 and the light-blocking seat 25 are made of flexible materials. In order to prevent the light-blocking seat 25 from being transparent, a light-blocking coating can be applied inside the light-blocking seat 25 to further improve the light-blocking ability of the light-blocking seat 25. A sliding groove is provided on the sheath seat 21, and the limiting ring 3 is set in the sliding groove. The limiting ring 3 can slide back and forth in the sliding groove.

[0055] In this embodiment, both the isolation tube 24 and the light-shielding seat 25 have a limiting groove, and the two limiting grooves are interconnected. The limiting groove of the isolation tube 24 is provided with a second limiting block 29. One end of the second limiting block 29 is connected to the hand-held part 1, and the other end extends into the light-shielding seat 25. The middle part of the second limiting block 29 is provided with a plurality of connecting parts 4 in a circular array. The plurality of connecting parts 4 pass through the isolation tube 24 and are fixedly connected to the first limiting block 28. The isolation tube 24 has a clearance groove adapted to the connecting parts 4. The second limiting block 29 can move and adjust the curvature of the light-shielding seat 25 by following the movement of the first limiting block 28.

[0056] When the medical staff inserts the intervention part 2 of the device into the patient's ear canal, the limiting ring 3 is located in the middle of the sliding groove, and neither the first limiting block 28 nor the second limiting block 29 is fully inserted into the light-blocking seat 25 and the tip seat 23. Since the light-blocking seat 25 and the tip seat 23 are both made of flexible material, and the first limiting block 28 and the second limiting block 29 are not fully inserted, the ends of the light-blocking seat 25 and the tip seat 23 away from the handheld part 1 have a certain degree of deformation capability. In this state, if the medical staff operates improperly and the device comes into contact with the patient's ear canal, the flexible design of the light-blocking seat 25 and the tip seat 23 can effectively prevent the device from scratching the patient's ear canal or causing the patient to experience significant pain. At the same time, it can effectively prevent the patient from scratching the ear canal due to pain when moving their head during the ear canal examination.

[0057] Secondly, when one end of the interventional section 2 is inserted into the curved part of the patient's ear canal and cannot continue to probe forward, the limiting ring 3 is pushed to move away from the interventional section 2. Even if the limiting ring 3 slides backward, the limiting ring 3 will drive the first limiting block 28 to move closer to the handheld part 1. During this process, since the first limiting block 28 and the second limiting block 29 are connected by the connector 4, when the limiting ring 3 slides backward, it can simultaneously drive the first limiting block 28 and the second limiting block 29 to move closer to the handheld part 1. This will cause the first limiting block 28 and the second limiting block 29 to separate from the tip seat 23 and the light-blocking seat 25, respectively. At this time, since the tip seat 23 and the light-blocking seat 25 have lost the rigid support of the first limiting block 28 and the second limiting block 29, and because they are made of flexible material, their front end bending deformation ability is greatly increased. This allows the front end to bend according to the curvature of the ear canal, effectively overcoming the problem that rigid endoscopes have difficulty probing patients with excessively curved ear canals.

[0058] Third Embodiment

[0059] However, when using this device to explore a patient's ear canal, especially in patients with ear canal infections, there will inevitably be secretions such as cerumen in the ear canal. If secretions stick to the lens during the exploration process, it will affect the image of the lens. If the device is removed and cleaned, it will prolong the diagnosis time. Furthermore, because the nerves in the ear canal are quite sensitive, repeated removal and insertion will aggravate the patient's discomfort.

[0060] Therefore, to solve the above problems, the device further includes: a limiting hole 5 is provided on the side of the tip seat 23 that contacts the first limiting block 28, and a sliding member 6 is provided in the limiting hole 5. The sliding member 6 is fixedly connected to the first limiting block 28. When the first limiting block 28 moves, it can drive the sliding member 6 to move synchronously. When the sliding member 6 contacts the side wall of the limiting hole 5 during the movement, the sliding member 6 can push the tip seat 23 to move and adjust the illumination range.

[0061] When it is necessary to adjust the light intensity of the camera's sampling area during use, the limiting ring 3 slides forward, thereby driving the first limiting block 28 to slide. At this time, the first limiting block 28 can drive the sliding member 6 to move synchronously. When the sliding member 6 contacts the side wall of the limiting hole 5 during the sliding process, the first limiting block 28 is still sliding. In this state, the sliding member 6 pushes the tip seat 23 forward through the setting of the sliding member 6 and the limiting hole 5, thereby causing the end of the tip seat 23 to pop forward and improve the light intensity of the camera's sampling area.

[0062] Meanwhile, during the exploration process, if there are foreign objects on the lens 27, the limiting ring 3 is controlled to move back and forth, causing the first limiting block 28 to drive the sliding member 6 to slide within the limiting hole 5. Since the surface of the sliding member 6 is not a completely smooth surface, the sliding member 6 can contact the side wall of the limiting hole 5 and generate a slight vibration when sliding within the limiting hole 5. Furthermore, since the first limiting block 28 and the second limiting block 29 can move with the movement of the limiting ring 3, the curvature of the tip seat 23 and the light-blocking seat 25 is changed, thereby causing the front end of the device to shake slightly, effectively cleaning the foreign objects such as earwax remaining on the lens 27, and ensuring that the camera can normally collect information from inside the ear canal.

[0063] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electronic endoscope comprising a hand-held portion (1), characterized in that The hand-held part (1) is provided with an intervention part (2) at one end, which can be detachably connected, the intervention part (2) comprises an isolation assembly, which can avoid direct contact between the camera and the human body, the isolation assembly comprises a light isolation seat (25), which is arranged in the intervention part (2), and the light isolation seat (25) can shield the illumination light to avoid the reflection phenomenon; The intervention part (2) further comprises a sheath seat (21) and an outer tube (22), the outer tube (22) is sleeved with an isolation tube (24), one end of the isolation tube (24) is connected with the sheath seat (21), the other end is connected with the light isolation seat (25), the light isolation seat (25) is provided with a lens (27), the sheath seat (21) is provided with a limiting ring (3), the limiting ring (3) can slide on the sheath seat (21), one end of the outer tube (22) away from the sheath seat (21) is provided with a sharp end seat (23), the sharp end seat (23) and the light isolation seat (25) are made of flexible material; the outer tube (22) and the sharp end seat (23) are both provided with a through groove, and the two through grooves are communicated with each other, the through groove of the outer tube (22) is provided with a first limiting block (28), one end of the first limiting block (28) penetrates through the outer tube (22) and extends into the sharp end seat (23), the other end of the first limiting block (28) is connected with the limiting ring (3), and the first limiting block (28) can adjust the bending degree of the sharp end seat (23) by moving; The isolation tube (24) and the light isolation seat (25) are both provided with a limiting groove, and the two limiting grooves are communicated with each other, the limiting groove of the isolation tube (24) is provided with a second limiting block (29), one end of the second limiting block (29) is connected with the hand-held part (1), and the other end extends into the light isolation seat (25), the middle part of the second limiting block (29) is annularly arranged with a plurality of connecting pieces (4), the plurality of connecting pieces (4) penetrate through the isolation tube (24) and are fixedly connected with the first limiting block (28), the isolation tube (24) is provided with a giving slot matched with the connecting piece (4), and the second limiting block (29) can move to adjust the bending degree of the light isolation seat (25) by following the movement of the first limiting block (28); The first limiting block (28) and the second limiting block (29) can move by following the movement of the limiting ring (3), so as to change the bending degree of the sharp end seat (23) and the light isolation seat (25), by reciprocatingly adjusting the movement of the first limiting block (28) and the second limiting block (29), the front end of the light isolation seat (25) can be slightly shaken, and the impurities remaining on the lens can be treated.

2. The electronic endoscope according to claim 1, characterized by The isolation assembly is arranged on the sheath seat (21), the outer tube (22) and the isolation tube (24) are provided with an optical fiber, and the sharp end seat (23) can be illuminated by the light emitted by the optical fiber.

3. The electronic endoscope according to claim 2, characterized by The sheath seat (21), the outer tube (22), the sharp end seat (23), the isolation tube (24), the light isolation seat (25) and the lens (27) jointly form an isolation cavity, so as to isolate the camera from the human body, and the camera can be used repeatedly.

4. The electronic endoscope according to claim 1, characterized by The hand-held part (1) comprises a sheath lock (11) which is detachably connected with a sheath base (21), the sheath base (21) and the sheath lock (11) are both provided with a transition round corner, and the sheath base (21) and the sheath lock (11) are both provided with corresponding mounting holes which are used for connecting the intervention part (2) with the hand-held part (1), and the edges of the mounting holes are both provided with a guide angle, and the blind insertion mounting is used for guiding, positioning and assembling.

5. The electronic endoscope of claim 1, wherein The isolation tube (24) is provided with a mounting tube (26), one end of the mounting tube (26) close to the light isolation base (25) is connected with the camera, and the other end of the mounting tube (26) away from the light isolation base (25) penetrates through the sheath base (21) and is connected with the hand-held part (1).

6. The electronic endoscope of claim 1, wherein, The hand-held part (1) further comprises a handle (12), the handle (12) is connected with the sheath lock (11), the handle (12) is a cavity structure, the handle (12) is provided with a light source (14), a plurality of heat dissipation components (13) are arranged around the light source (14), and the handle (12) is further provided with an image processing module which is electrically connected with the camera and cooperates with the camera to process and transmit an image.

7. The electronic endoscope according to claim 6, characterized by The light emitting end of the light source (14) is connected with a light emitting part (15), one end of the light emitting part (15) away from the light source (14) penetrates through the handle (12) and extends into the sheath lock (11), when the intervention part (2) and the hand-held part (1) are assembled, the light emitting part (15) can guide the light emitted by the light source (14) to the optical fiber.

8. The electronic endoscope of claim 1, wherein, The side of the tip base (23) in contact with the first limiting block (28) is provided with a limiting hole (5), the limiting hole (5) is provided with a sliding part (6), the sliding part (6) is fixedly connected with the first limiting block (28), when the first limiting block (28) moves, the sliding part (6) can move synchronously, when the sliding part (6) contacts with the side wall of the limiting hole (5) during the movement, the sliding part (6) can push the tip base (23) to move and adjust the light range.

Images