Medical endoscope

Abstract

The invention discloses an electronic endoscope, and relates to the technical field of endoscopes, the electronic endoscope comprises a hand-held part, one end of the hand-held part is provided with an intervention part capable of being detachably connected, the intervention part comprises an isolation assembly, the isolation assembly can prevent a camera from being polluted due to direct contact with a human body, the isolation assembly comprises a light isolation seat, and the light isolation seat is arranged in the intervention part. And the light insulation seat can shield the illumination light so as to avoid a light reflection phenomenon. The sheath base, the outer tube, the tip base, the isolation tube, the light isolation base, the lens and the like jointly form an isolation cavity, so that the problem that the camera is polluted and cannot be repeatedly used due to contact between the camera and the ear canal of a patient when the camera goes deep into the ear canal of the patient can be avoided, the medical cost of the patient is reduced, and the patient experience is improved. Meanwhile, through the arrangement of structures such as the light insulation seat, the problem that a light source is reflected on the lens to affect exploration is effectively avoided, and the sheath lock, the sheath seat and other parts are optimally designed to achieve the effect of rapid assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to an electronic endoscope. Background Art

[0002] Endoscopic surgery has been widely carried out in the field of surgery. Due to its many advantages such as minimally invasive, rapid recovery and low cost, 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, light sources, etc. It can enter the body through natural channels to perform surgical treatment on the lesions. Among them, the electronic endoscope is used in the ear canal to directly capture the internal structure of the ear canal through micro sensors and high-definition image processing systems, realizing non-invasive and accurate diagnosis and treatment.

[0003] Chinese patent application number 2024105479660 discloses a detachable endoscope in which a proximal interface and a distal interface are detachably connected within a docking compartment on a first housing and / or a second housing. This allows for the reusability of the control components configured in the handle, reducing the cost of the detachable endoscope. However, the aforementioned invention is cumbersome to disassemble and assemble, requiring the physician to carefully confirm the insertion holes before assembly.

[0004] A multi-purpose soft gun-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 hand-held part and a display screen part. The insertion part is arranged on the front side of the front end shell. The multi-purpose soft gun-type ENT endoscope avoids unnecessary repeated disassembly and assembly through component position adjustment, and through the treatment channel, it can accurately locate treatment and use treatment forceps and other tools to realize a multi-functional structure.

[0005] Similar to the above-mentioned existing technologies, since the camera is set at the front end, when the endoscope is inserted into the patient's body, the camera will come into contact with the human body. In order to avoid the risk of cross infection, the camera is usually used as a disposable consumable. There is no way to recycle and reuse it, and the cost is too high. In addition, the existing endoscope has reflections and is difficult to assemble.

[0006] Secondly, when existing endoscopes are used to treat ear canal diseases, due to the different degrees of curvature of the ear canals of different patients, when the device reaches the bend, the rigid tube endoscope is difficult to continue to explore forward. Although this problem can be solved by a flexible tube endoscope with controllable steering, this type of endoscope is too expensive, and because the inside of the patient's ear canal is too sensitive, the operator needs to have high operating skills and is too difficult to operate.

[0007] At the same time, when the device is used to explore the patient's ear canal, especially for patients with ear canal infections, secretions such as earwax will inevitably remain in the ear canal. During the exploration process, if the lens is stuck with secretions, it will affect the imaging of the lens. If the device is removed and cleaned, the diagnosis time will be prolonged. Moreover, since the nerves in the ear canal are relatively 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 object of the present invention is to provide an electronic endoscope to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an electronic endoscope, comprising a hand-held part, one end of which is provided with an intervention part that can be detachably connected, the intervention part comprising an isolation component, the isolation component can prevent the camera from directly contacting the human body, the isolation component comprising a light isolation seat, the light isolation seat is arranged in the intervention part, and the light isolation seat can block the illumination light to avoid reflection.

[0011] Preferably, the intervention part also includes a sheath seat, the isolation component is arranged on the sheath seat, and the isolation component also includes an outer tube, the end of the outer tube away from the sheath seat is provided with a tip seat, the outer tube is provided with an isolation 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 isolation seat. A lens is provided on the light isolation seat. The sheath seat, outer tube, tip seat, isolation tube, light isolation seat and lens together form an isolation cavity, which isolates the camera from the human body and enables the camera to be used multiple times.

[0013] Preferably, the hand-held 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 fillets. The sheath seat and the sheath lock are provided with corresponding mounting holes, which are used to connect the intervention part and the hand-held part, and the edges of the mounting holes are provided with guide angles for blind insertion installation for guidance, positioning and assembly.

[0014] Preferably, a mounting tube is sleeved inside the isolation tube, one end of the mounting tube close to the light isolation seat is connected to the camera, and one end of the mounting tube away from the light isolation seat passes through the sheath seat and is connected to the handheld part.

[0015] Preferably, the handheld part also includes a handle, which is connected to the sheath lock. The handle has a cavity structure. A light source is provided in the handle. A plurality of heat dissipation components are provided around the light source. An image processing module is also provided in the handle, which is electrically connected to the camera and cooperates with the camera to process and transmit images.

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

[0017] Preferably, a limiting ring is provided on the sheath seat, and the limiting ring can slide on the sheath seat. A through groove is provided in each of the outer tube and the tip seat, and the two through grooves are connected to each other. A first limiting block is provided in the through groove of the outer tube, one end of the first limiting block passes through the outer tube and extends into the tip seat, and 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, a limiting groove is provided in both the isolation tube and the light-isolating seat, and the two limiting grooves are connected to each other. A second limiting block is provided in the limiting groove of the isolation tube, one end of the second limiting block is connected to the hand-held part, and the other end extends into the light-isolating seat. The middle part of the second limiting block is provided with a plurality of connecting parts in a circular array, and the plurality of connecting parts pass through the isolation tube and are fixedly connected to the first limiting block. A giving groove adapted to the connecting part is provided on the isolation tube, and the second limiting block can move following the movement of the first limiting block to adjust the curvature of the light-isolating seat.

[0019] Preferably, a limiting hole is opened on the side where the tip seat 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, and 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 movement, the sliding member can push the tip seat to move and adjust the illumination range.

[0020] Technical effects and advantages of the present invention: 1. The present invention comprises a sheath holder, an outer tube, a tip holder, an isolation tube, a light-isolating holder, and a lens, etc., which together form an isolation chamber. This prevents the camera from contacting the patient's ear canal when the camera is inserted deep into the patient's ear canal, thereby preventing the camera from being contaminated and becoming unreusable. This reduces the patient's medical expenses. At the same time, the provision of structures such as the light-isolating holder effectively prevents the light source from being reflected on the lens, thereby affecting the detection. Furthermore, the optimized design of components such as the sheath lock and sheath holder enables quick assembly.

[0021] 2. The present invention arranges devices such as a light-isolating seat, a pointed end seat, and a first limit block and a second limit block. On the one hand, the bending degree of the intervention portion of the device can be adjusted by moving the first limit block and the second limit 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 reciprocatingly adjusting the movement of the first limit block and the second limit block, the front end of the device can produce a slight shake to deal with impurities remaining on the lens, thereby avoiding damage to the patient's ear canal caused by repeated insertion and removal for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the overall structure of the intervention part of the present invention.

[0024] Figure 3 It is a schematic diagram of the explosion structure of the intervention part of the present invention.

[0025] Figure 4 This is a schematic diagram of the connection structure between the tip seat and the outer tube of the present invention.

[0026] Figure 5 Schematic diagram of the connection mechanism between the isolation tube and the light isolation seat of the present invention.

[0027] Figure 6 This is a schematic diagram of the connection structure between the sheath seat and the mounting tube of the present invention.

[0028] Figure 7 It is a schematic structural diagram of the handheld part of the present invention.

[0029] Figure 8 Schematic diagram of the internal structure of the handheld part of the present invention.

[0030] Figure 9 It is a half-section schematic diagram of the internal structure of the tip seat and the outer tube of the present invention.

[0031] Figure 10 It is a half-section schematic diagram of the internal structure of the isolation tube and the light isolation seat of the present invention.

[0032] Figure 11 For the present invention Figure 9 Schematic diagram of the organizational structure at A in the middle.

[0033] In the figure: 1. Hand-held part; 11. Sheath lock; 12. Handle; 13. Heat dissipation component; 14. Light source; 15. Light-emitting part; 2. Intervention part; 21. Sheath seat; 22. Outer tube; 23. Tip seat; 24. Isolation tube; 25. Light-isolating seat; 26. Mounting tube; 27. Lens; 28. First limit block; 29. ​​Second limit block; 3. Limit ring; 4. Connector; 5. Limit hole; 6. Sliding part. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] First embodiment In order to solve the problem that the camera of the existing electronic endoscope comes into contact with the human body and cannot be recycled and reused, resulting in the risk of cross infection and high cost of use, and the existing electronic endoscope is too complicated to assemble and the lens is prone to reflection, an electronic endoscope is provided in this embodiment to solve the above problems.

[0036] 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 an intervention part 2 that can be detachably connected. 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 isolation seat 25, which is arranged in the intervention part 2, and the light isolation seat 25 can block the illumination light to avoid reflection.

[0037] In this embodiment, the intervention part 2 also includes a sheath seat 21, and the isolation component is arranged on the sheath seat 21. The isolation component also includes an outer tube 22. The end of the outer tube 22 away from the sheath seat 21 is provided with a tip seat 23. The outer tube 22 is provided with an isolation tube 24 inside. An optical fiber is provided between the outer tube 22 and the isolation tube 24. The tip seat 23 can be illuminated by the light emitted by the optical fiber.

[0038] 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 isolation seat 25. A lens 27 is provided on the light isolation seat 25. The sheath seat 21, outer tube 22, tip seat 23, isolation tube 24, light isolation seat 25 and lens 27 together form an isolation cavity, which isolates the camera from the human body and enables the camera to be used multiple times.

[0039] It should be noted that the sheath seat 21, outer tube 22, tip seat 23, isolation tube 24, light isolation seat 25 and lens 27 together form an isolation cavity, so that when the camera enters the patient's ear canal, it can avoid contact between the camera and the patient's ear canal, causing the camera to be contaminated and unable to be reused, thereby reducing the patient's medical expenses. The sheath seat 21, outer tube 22, tip seat 23, isolation tube 24, light isolation seat 25 and lens 27 are used as disposable consumables, the cost of which is lower than the degree of disinfection, and can completely avoid cross infection caused by incomplete disinfection.

[0040] 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 fillets, and the sheath seat 21 and the sheath lock 11 are provided with corresponding mounting holes, which are used to connect the intervention part 2 and the handheld part 1, and the edges of the mounting holes are provided with guide angles for blind plug installation for guidance, positioning, and quick assembly, so that the device can be quickly assembled when in use.

[0041] In this embodiment, a mounting tube 26 is sleeved inside the isolation tube 24, and the end of the mounting tube 26 close to the light isolation seat 25 is connected to the camera, and the end of the mounting tube 26 away from the light isolation seat 25 passes through the sheath seat 21 and is connected to the handheld part 1. By fixing the mounting tube 26 to the handheld part 1, on the one hand, it is convenient to install and fix the camera, and on the other hand, when the handheld part 1 and the intervention part 2 are assembled, the mounting position is guided by the mounting tube 26, thereby further improving the installation efficiency.

[0042] 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 cavity structure. A light source 14 is provided in the handle 12. A plurality of heat dissipation components 13 are provided around the light source 14. An image processing module is also provided in the handle 12, which is electrically connected to the camera and cooperates with the camera to process and transmit images.

[0043] It should be noted that a non-slip cover can be provided on the outside of the handle 12 to facilitate use by medical staff. There are multiple heat dissipation components 13 in the handle 12. On the one hand, it prevents medical staff from sweating due to holding the device for a long time. On the other hand, it cools the light source 14 to avoid damage caused by overheating. The wires between the image processing module and the camera can be set in the mounting tube 26, which further improves the convenience of assembly of the device and avoids the problem of wire entanglement.

[0044] In this embodiment, the light-emitting end of the light source 14 is connected to a light-emitting component 15. The end of the light-emitting component 15 away from the light source 14 passes through the tube 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 component 15 can guide the light emitted by the light source 14 to the optical fiber. The setting of the light-emitting component 15 is to transmit the light source to the optical fiber to ensure the brightness of the light. On the other hand, by separating the light-emitting component 15 from the optical fiber, when a problem occurs in the optical path, the source of the problem can be quickly determined and the problem can be quickly solved by disassembly and replacement.

[0045] During assembly, the assembly of the device can be completed by simply connecting and locking the sheath seat 21 and the sheath lock 11. Among them, the convenience of assembling the device is further improved by adding transition fillets, conical guide angles and other structural designs on the sheath seat 21, the sheath lock 11 and their outer shells.

[0046] When the device is used to examine the patient's ear canal, the sheath seat 21, the outer tube 22, the tip seat 23, the isolation tube 24, the light isolation seat 25 and the lens 27 together form an isolation cavity, so that when the camera penetrates into the patient's ear canal, it can avoid contact with the patient's ear canal, resulting in the camera being contaminated and unable to be reused.

[0047] At the same time, since the material of the tip seat 23 is a translucent material, the light source emitted by the optical fiber can be scattered outward through the tip seat 23 to provide a lighting environment for the camera's image acquisition, and since the light isolation seat 25 is made of an opaque material, the light generated by the optical fiber cannot pass through the light isolation seat 25 to affect the camera's image acquisition, thereby effectively avoiding the problem of unclear image due to reflection from the lens 27.

[0048] It should be noted that, in order to improve the versatility of the device, the interventional portion 2 may be improved so that the device can be used in endoscopes such as hysteroscopes, spinoscopes, arthroscopes, ureteroscopes, and bronchoscopes.

[0049] Second embodiment However, in actual use, medical staff found that due to the different degrees of curvature of the ear canals of different patients, when the device reached the bend, the rigid tube endoscope was difficult to continue to explore forward. Although this problem could be solved by a flexible tube endoscope with controllable steering, this type of endoscope was too expensive, and because the inside of the patient's ear canal was too sensitive, it required the operator to have high operating skills and was too difficult to operate.

[0050] like Figures 9 to 11 As shown, in order to overcome the above problems, in this embodiment, the device also includes: a limit ring 3 is provided on the sheath seat 21, and the limit ring 3 can rotate and slide on the sheath seat 21, and a through groove is provided in the outer tube 22 and the tip seat 23, and the two through grooves are connected to each other, and a first limit block 28 is provided in the through groove of the outer tube 22, one end of the first limit block 28 passes through the outer tube 22 and extends into the tip seat 23, and the other end of the first limit block 28 is connected to the limit ring 3, and the first limit block 28 can adjust the curvature of the tip seat 23 by moving.

[0051] It should be noted that the tip seat 23 and the light-isolating seat 25 are both made of flexible materials, and in order to prevent the light-isolating seat 25 from being light-transmissive, a light-shielding paint can be coated inside the light-isolating seat 25 to further improve the light-isolating ability of the light-isolating seat 25; a sliding groove is provided on the sheath seat 21, and the limit ring 3 is arranged in the sliding groove, and the limit ring 3 can slide back and forth in the sliding groove.

[0052] In this embodiment, a limiting groove is provided in both the isolation tube 24 and the light-isolating seat 25, and the two limiting grooves are connected to each other. A second limiting block 29 is provided in the limiting groove of the isolation tube 24. One end of the second limiting block 29 is connected to the hand-held part 1, and the other end extends into the light-isolating 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. A giving groove adapted to the connecting part 4 is provided on the isolation tube 24. The second limiting block 29 can move and adjust the curvature of the light-isolating seat 25 following the movement of the first limiting block 28.

[0053] During use, when the medical staff extends the intervention part 2 of the device into the patient's ear canal, the limit ring 3 is located in the middle of the sliding groove, and the first limit block 28 and the second limit block 29 are not fully inserted into the light isolation seat 25 and the tip seat 23. At this time, since the light isolation seat 25 and the tip seat 23 are both made of flexible materials, and the first limit block 28 and the second limit block 29 are not fully inserted therein, the light isolation seat 25 and the tip seat 23 are far away from the end of the handheld part 1 and have a certain deformation ability. In this state, if the medical staff operates improperly and causes the device to contact the patient's ear canal, the flexible setting of the light isolation seat 25 and the tip seat 23 can effectively prevent the device from scratching the patient's ear canal or causing great pain to the patient. At the same time, it can effectively prevent the patient from scratching the ear canal due to pain when shaking his head during the ear canal examination.

[0054] Secondly, when one end of the intervention part 2 extends into the bend of the patient's ear canal and cannot continue to explore forward, at this time, by pushing the limit ring 3 to move toward the end away from the intervention part 2, even if the limit ring 3 slides backward, the first limit block 28 is driven by the limit ring 3 to move toward the direction close to the hand-held part 1. In this process, since the first limit block 28 and the second limit block 29 are connected by the connecting member 4, when the limit ring 3 slides backward, it can simultaneously drive the first limit block 28 and the second limit block 29 to move toward the direction close to the hand-held part 1, thereby causing the first limit block 28 and the second limit block 29 to separate from the tip seat 23 and the light-isolating seat 25 respectively. At this time, the tip seat 23 and the light-isolating seat 25 have lost the rigid support of the first limit block 28 and the second limit block 29, and because they are made of flexible material, their front-end bending deformation ability is greatly increased, so that the front end can bend according to the curvature of the ear canal, effectively overcoming the problem that the rigid tube endoscope is difficult to explore patients with excessively curved ear canals.

[0055] Third embodiment However, when using this device to explore the patient's ear canal, especially for patients with ear canal infections, secretions such as earwax will inevitably remain in their ear canal. During the exploration process, if the secretions are stuck on the lens, it will affect the imaging of the lens. If the device is removed and cleaned, the diagnosis time will be prolonged. In addition, since the nerves in the ear canal are relatively sensitive, repeated removal and insertion will increase the patient's discomfort.

[0056] Therefore, in order to solve the above problem, the device also includes: a limiting hole 5 is opened on the side where the tip seat 23 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 lighting range.

[0057] When it is necessary to adjust the light intensity of the camera collection area during use, the limit ring 3 slides forward, thereby driving the first limit block 28 to slide. At this time, the first limit block 28 can drive the sliding member 6 to move synchronously. When the sliding member 6 contacts the side wall of the limit hole 5 during the sliding process, at this time, since the first limit block 28 still keeps sliding, in this state, through the setting of the sliding member 6 and the limit hole 5, the sliding member 6 pushes the tip seat 23 forward, so that the end of the tip seat 23 pops forward, thereby increasing the light intensity of the camera sampling area.

[0058] At the same time, during the detection process, if there is foreign matter on the lens 27, the limit ring 3 is controlled to move back and forth, so that the first limit block 28 drives the sliding member 6 to slide in the limit hole 5. Because the surface of the sliding member 6 is not a completely smooth surface, the sliding member 6 can contact the side wall of the limit hole 5 and generate slight vibrations when sliding in the limit hole 5. Moreover, since the first limit block 28 and the second limit block 29 can move with the movement of the limit ring 3, the curvature of the tip seat 23 and the light isolation seat 25 is changed, so that the front end of the device shakes slightly, and foreign matter such as earwax remaining on the lens 27 is effectively cleaned, ensuring that the camera can normally collect information in the ear canal.

[0059] Finally, it should be noted that the above 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 aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electronic endoscope, comprising a handheld portion (1), characterized in that: One end of the handheld portion (1) is provided with a detachably connected intervention portion (2), the intervention portion (2) comprising an isolation component, the isolation component being capable of preventing the camera from directly contacting the human body, the isolation component comprising a light isolation seat (25), the light isolation seat (25) being arranged in the intervention portion (2), and the light isolation seat (25) being capable of shielding the illumination light to avoid reflection.

2. The electronic endoscope according to claim 1, wherein: The intervention part (2) further comprises a sheath seat (21), the isolation assembly is arranged on the sheath seat (21), the isolation assembly further comprises an outer tube (22), an end of the outer tube (22) away from the sheath seat (21) is provided with a tip seat (23), 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 light emitted by the optical fiber.

3. The electronic endoscope according to claim 2, characterized in that One end of the isolation tube (24) is connected to the sheath seat (21), and the other end is connected to the light isolation seat (25). A lens (27) is provided on the light isolation seat (25). The sheath seat (21), the outer tube (22), the tip seat (23), the isolation tube (24), the light isolation seat (25) and the lens (27) together form an isolation cavity, isolating the camera from the human body, so that the camera can be used multiple times.

4. The electronic endoscope according to claim 1, wherein The handheld portion (1) includes a sheath lock (11), and the sheath lock (11) can be detachably connected to the sheath seat (21). The edges of the sheath seat (21) and the sheath lock (11) are both provided with excessive rounded corners. The sheath seat (21) and the sheath lock (11) are both provided with corresponding mounting holes, which are used to connect the intervention portion (2) and the handheld portion (1). The edges of the mounting holes are both provided with guide angles for blind insertion installation for guidance, positioning and assembly.

5. The electronic endoscope according to claim 1, wherein: A mounting tube (26) is sleeved inside the isolation tube (24); one end of the mounting tube (26) close to the light isolation seat (25) is connected to the camera; and one end of the mounting tube (26) away from the light isolation seat (25) passes through the sheath seat (21) and is connected to the handheld part (1).

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

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

8. The electronic endoscope according to claim 2, characterized in that A limiting ring (3) is provided on the sheath seat (21), and the limiting ring (3) can slide on the sheath seat (21). A through groove is provided in each of the outer tube (22) and the tip seat (23), and the two through grooves are connected to each other. A first limiting block (28) is provided in the through groove of the outer tube (22), one end of the first limiting block (28) passes through the outer tube (22) and extends into the tip seat (23), and the other end of the first limiting block (28) is connected to the limiting ring (3). The first limiting block (28) can adjust the curvature of the tip seat (23) by moving.

9. The electronic endoscope according to claim 8, characterized in that A limiting groove is provided in each of the isolation tube (24) and the light-isolating seat (25), and the two limiting grooves are interconnected. A second limiting block (29) is provided in the limiting groove of the isolation tube (24). One end of the second limiting block (29) is connected to the handheld portion (1), and the other end extends into the light-isolating seat (25). A plurality of connecting members (4) are provided in a circular array in the middle of the second limiting block (29). The plurality of connecting members (4) pass through the isolation tube (24) and are fixedly connected to the first limiting block (28). A recess adapted to the connecting member (4) is provided on the isolation tube (24). The second limiting block (29) can follow the movement of the first limiting block (28) to move and adjust the curvature of the light-isolating seat (25).

10. The electronic endoscope according to claim 9, characterized in that 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), and when the first limiting block (28) moves, the sliding member (6) can be driven 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, thereby adjusting the illumination range.

Images