Electrostatic grounding structure of endoscope and endoscope

Abstract

The invention discloses an endoscope electrostatic grounding structure and an endoscope, and belongs to the field of endoscopes, an electricity leading end rod is formed on the side, close to a front end head, of a front connecting ring of the endoscope electrostatic grounding structure, and the length-width ratio of the electricity leading end rod is larger than 2.5: 1; the end portion of the electricity leading end rod is in a sharp corner shape or an arc shape. The power leading end rod extends towards the front end face of the front end head, and in the axial direction of the front end head, the power leading end rod passes through and exceeds the position, where an electrical module is installed, of the front end head. In the radial direction, the outer side face of the electricity leading end rod protrudes out of the outer circumferential face of the front end head. Under the condition that no extra component is added to the end of the endoscope, static electricity is stably discharged, the structure is simple, and installation is easy.

Description

Technical Field

[0001] This invention relates to the field of disposable endoscope technology, and more specifically, to an endoscope electrostatic grounding structure and an endoscope. Background Technology

[0002] An endoscope is a sophisticated medical device that integrates optical, mechanical, and electronic technologies. It enters the body through natural cavities or minimally invasive incisions, allowing doctors to directly observe the condition of internal organs for diagnosis and treatment.

[0003] If the conductive path between the endoscope lens assembly and external structures such as the handle is discontinuous or the shielding design is inadequate, static charge cannot be discharged in time and will accumulate around sensitive imaging elements (such as CMOS sensors). The accumulated static electricity may cause momentary discharge, interfering with the signal transmission of the image sensor, resulting in noise, pixelation, or even damage to internal precision electronic components.

[0004] For example, Chinese patent document (CN 206729856 U) provides a circuit shielding structure for an endoscope, which includes a camera component, a camera mounted at one end of the camera component, and a grounding terminal mounted at the other end of the camera component. A first shielding layer is provided around the camera component, and a cylindrical snake-shaped frame is provided around the first shielding layer. A second shielding layer is provided around the snake-shaped frame. During installation, the camera and the grounding terminal are respectively installed at both ends of the camera component to form a column. Then, the first shielding layer is installed around the column, the snake-shaped frame is installed around the first shielding layer, and the second shielding layer is installed around the snake-shaped frame. The second shielding layer is integrally formed with the curved sleeve. In this structure, the snake-shaped frame itself has a shielding function, thus achieving the shielding function.

[0005] For example, Chinese patent document (CN 219645672 U) provides an insertion part and endoscope, which, by adding a metal connector, electrically connects the metal tube in the clamp channel to the metal snake bone to form a static discharge path, so that when the metal tube comes into contact with static electricity, the static electricity can be discharged to the snake bone.

[0006] For example, Chinese patent document (CN 115177200 A) provides an endoscope, an endoscope assembly, and an endoscope testing device. The front-end functional module and the first electrostatic conductive element are both located inside the working end of the endoscope. The front-end functional module and the first electrostatic conductive element are both connected to the first circuit board, and the first electrostatic conductive element is grounded through the first circuit board. The first electrostatic conductive element is arranged adjacent to the front-end functional module.

[0007] The above three applications and the existing endoscope-related anti-static damage designs all require an additional component to be set at the end of the endoscope. This increases the cost and assembly difficulty of the endoscope, makes the structure more complex, occupies the already small end of the endoscope, and its static discharge effect is relatively unstable, especially its ability to absorb static electricity is insufficient. The static protection of the front-end functional module is still difficult to fully guarantee.

[0008] The relevant technologies do not provide effective solutions to the above problems. Summary of the Invention

[0009] 1. The technical problem that the invention aims to solve The purpose of this invention is to solve the problem that the existing anti-static interference structure of endoscopes is relatively complex and the effect is unstable.

[0010] 2. Technical Solution Some embodiments of this application provide an endoscope electrostatic grounding structure including: a front end head for mounting a camera, electrical module, and instrument channel tube; a front connector ring connected to the front end head, the side of the front connector ring away from the front end head being used for connection to a grounded serpentine tube; a current-leading end rod formed on the side of the front connector ring near the front end head, wherein the aspect ratio of the current-leading end rod is greater than 2.5:1; the end of the current-leading end rod is pointed or rounded; the current-leading end rod extends toward the front end face of the front end head, and in the axial direction of the front end head, the current-leading end rod passes through and extends beyond the position where the electrical module is mounted on the front end head; in the radial direction, the outer surface of the current-leading end rod protrudes from the outer peripheral surface of the front end head.

[0011] Furthermore, the cross-section of the power-leading end rod is arc-shaped, and the center of the power-leading end rod coincides with the center of the front end head.

[0012] Furthermore, the width of the lead-in end rod is 1mm to 2mm; or, the length-to-width ratio of the lead-in end rod is greater than 5:1.

[0013] Furthermore, in the radial direction, the outer surface of the lead-in end rod protrudes 0.1 mm to 0.5 mm beyond the outer peripheral surface of the front end head.

[0014] Furthermore, on the axial surface of the front end head, the lead-in end rod extends along the axial direction of the front end head to the front end face of the front end head, so that the end of the lead-in end is flush with or substantially flush with the end face of the front end head.

[0015] Furthermore, the front connector has at least two lead-in rods, which are evenly arranged along the axial direction of the front connector, with gaps between adjacent lead-in rods.

[0016] Furthermore, the radial surface of the front end head is formed with a receiving groove, and a portion of the power lead end rod is partially embedded in the receiving groove.

[0017] Furthermore, a mating portion is formed on the side of the front end near the front connector ring, the outer diameter of the mating portion is smaller than the inner diameter of the front connector ring, and the mating portion is inserted into the front connector ring; The mating part has a clearance notch extending in the axial direction to allow passage for electrical modules and / or instrument channel tubes.

[0018] To achieve the above objectives, this application also provides an endoscope, including an endoscope electrostatic grounding structure, a camera, an electrical module, an instrument channel tube, a snake skeleton, a steel wire, a capillary tube, a handle, an adapter plate, and a main unit, as described in any of the above solutions; the front connecting ring is fixedly connected to the snake skeleton, and the steel wire is fixedly connected to the snake skeleton or the front connecting ring; The camera, electrical module, and instrument channel tube are installed to the front end head; in the axial direction of the front end head, the power lead rod passes through and extends beyond the electrical module; an electrostatic insulation layer is provided on the outside of the front end head and the front connecting ring; At least a portion of the capillary is located within the handle, and the adapter plate is located within the handle; The steel wire passes through and contacts the capillary tube, the capillary tube is soldered to the grounding pin of the adapter plate, and the adapter plate is electrically connected to the host, so that the host can discharge static electricity.

[0019] Furthermore, the host is provided with an electrostatic accumulation steel plate; the adapter plate is electrically connected to the electrostatic accumulation steel plate in the host; the electrostatic accumulation steel plate is connected to an electrostatic discharge resistor, the electrostatic discharge resistor is in the megohm range, and the electrostatic discharge resistor is electrically connected to the power cord of the host.

[0020] 3. Beneficial effects Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects: (1) The lead-in rod is located on the outside of the front end head and is higher than the outer periphery of the front end head. Due to its slender structure and non-flat end structure, it can effectively achieve the tip discharge effect and can directly form a relatively low resistivity receiving discharge structure near the electrical module. When the electrostatic discharge breaks down the insulation layer of the front contact ring and the outer layer of the front end head, the electrostatic discharge is guided to the inside of the endoscope handle and finally grounded by the position characteristics of the front contact ring itself connected to the snake bone. The front contact ring and the front end head are fully matched. The front contact ring is the electrostatic conductor of the front end head. Without adding any additional components at the end of the endoscope, the electrostatic discharge is stable. The structure is simple, the cost is low and the installation is easy. (2) On the axial surface of the front end head, the lead-in end rod extends along the axial direction of the front end head to the front end face of the front end head, so that the end of the lead-in end rod is flush or substantially flush with the front end face of the front end head. This design extends the protection path of the lead-in end rod 210 and can flexibly adapt to the installation positions of various types of electrical modules inside the front end head; (3) In the radial direction, the outer side of the lead-in end rod protrudes from the outer peripheral surface of the front end head by 0.1mm to 0.5mm, such as 0.15mm, 0.3mm or 0.48mm. Within this range, static electricity can be preferentially grounded from the lead-in end rod, while further reducing the step feeling between the lead-in end rod and the front end head, minimizing the impact on the user experience, and ensuring the positioning accuracy and structural stability of the lead-in end rod in mechanical assembly.

[0021] For other beneficial effects, please refer to the detailed implementation section. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a schematic diagram of the electrostatic grounding structure of an endoscope according to some embodiments of this application; Figure 2 This is a schematic diagram of the electrostatic grounding structure of an endoscope according to some embodiments of this application; Figure 3 This is a radial cross-sectional schematic diagram of the electrostatic grounding structure of an endoscope according to some embodiments of this application; Figure 4 This is a schematic diagram of the front contact ring of the endoscope electrostatic grounding structure in some embodiments of this application; Figure 5 This is a schematic diagram of the front contact ring of the endoscope electrostatic grounding structure in some embodiments of this application; Figure 6 This is a schematic diagram of the front contact ring of the endoscope electrostatic grounding structure in some embodiments of this application; Figure 7 This is a schematic diagram of the front end of the endoscope electrostatic grounding structure according to some embodiments of this application; Figure 8 This is a schematic diagram of the front end of the endoscope electrostatic grounding structure according to some embodiments of this application; Figure 9 This is a schematic diagram illustrating the principle of an endoscope electrostatic grounding system according to some embodiments of this application; Explanation of the labels in the diagram: 100. Front end; 110. Receiving groove; 120. Mating part; 121. Clearance notch; 200, Front connector; 210, Lead-in terminal; 210a, Outer side; 300, snake bone; 400, steel wire; 500, capillary tube; 600, adapter plate; 700, circuit board; 800, static electricity storage steel plate; 900, static electricity discharge resistor. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate for the embodiments of this application described herein.

[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0026] This application provides an endoscope electrostatic grounding structure, such as Figures 1 to 6 As shown, it includes a front end head 100 and a front connector ring 200.

[0027] The front end 100 is used to mount a camera, electrical modules, and an instrument channel tube, which allows instruments, gaseous media, or liquid media to enter. Optionally, the front end 100 is made of insulating material, such as PTFE.

[0028] Electrical modules can include precision electronic components such as camera modules and lighting modules. Without the protection of an electrostatic discharge (ESD) shield, such electrical modules are easily damaged by ESD.

[0029] The front connector 200 is connected to the front end head 100, and the side of the front connector 200 away from the front end head 100 is used to connect to the grounded serpentine wire. Optionally, the front connector 200 is made of non-insulating materials such as stainless steel.

[0030] Among them, the "grounded snake bone" is the snake bone electrically connected to other grounding structures of the endoscope to realize the complete electrostatic discharge function.

[0031] In detail, the endoscope front connector 200 is a key connecting component at the front end of the endoscope insertion section. It is located between the flexible snake-bone section and the front end head 100, and mainly serves to connect, fix and protect the internal components.

[0032] As an optional solution, the front connector 200 is connected between the front end head 100 and the snake skeleton. The front connector 200 can be integrally formed with the snake skeleton or welded to the snake skeleton.

[0033] Specifically, both the front end 100 and the front connector 200 have an insulating layer on their outer sides.

[0034] In existing technologies, the serpentine frame, front connector, and outer layer of the endoscope tip are often equipped with an electrostatic insulation layer. This layer is usually made of high-molecular polymers, such as polyurethane or epoxy resin, to prevent static electricity buildup from damaging the internal circuitry. However, such insulation layers are prone to static charge accumulation due to friction during use, increasing the risk of discharge. When faced with an air discharge of 15 kV or higher, static electricity will almost certainly break down the electrostatic insulation layer, thereby damaging the internal functional modules.

[0035] To solve the above problems, such as Figures 1 to 6 As shown, in the electrostatic grounding structure of the endoscope of this application, a current-leading rod 210 is formed on the side of the front contact ring 200 near the front end head. The aspect ratio of the current-leading rod 210 is greater than 2.5:1. For example, when the width of the current-leading rod is 3mm, the length of the current-leading rod is 10mm, making the current-leading rod 210 a slender structure. Figure 1 , 2 As shown, the end of the lead-in rod 210 is either pointed or rounded. The lead-in rod 210 extends towards the front end face of the front end head 100, and in the axial direction of the front end head 100, the lead-in rod 210 passes through and extends beyond the position where the electrical module is mounted on the front end head 100. For example... Figure 1 , 2 As shown in Figure 3, in the radial direction, the outer surface 210a of the lead-in end rod 210 protrudes from the outer peripheral surface of the front end head 100.

[0036] Specifically, the length and width directions of the lead-in end rod 210 are referenced. Figure 4 As shown.

[0037] In this way, the lead-in rod 210 is located outside the front end head 100 and the outer side 210a of the lead-in rod 210 is higher than the outer periphery of the front end head 100. Due to its slender structure and non-flat end, it can effectively achieve the tip discharge effect and can directly form a relatively low resistivity receiving discharge structure near the electrical module. When the electrostatic discharge breaks down the insulation layer of the front contact ring 200 and the outer layer of the front end head 100, the electrostatic discharge is guided to the inside of the endoscope handle and finally grounded by the position characteristics of the front contact ring 200 itself connected to the snake bone. The front contact ring 200 and the front end head 100 are fully coordinated. The front contact ring 200 serves as the electrostatic discharge guide of the front end head 100. Without adding any additional components at the end of the endoscope, the electrostatic discharge is stably discharged. The structure is simple, the cost is low, and the installation is easy.

[0038] As a comparative example, if the outer surface 210a of the lead-in rod 210 is lower than the outer peripheral surface of the front end head 100, for example, if the lead-in rod 210 is embedded in the outer peripheral surface of the front end head 100, the priority of the lead-in rod 210 in receiving static electricity will be significantly reduced. This is because static electricity in the air is more likely to break down other protrusions or edge structures on the surface of the front end head 100, rather than preferentially acting on the recessed lead-in rod 210. As a result, static electricity may still directly break down the insulating layer of the functional area on the front end head 100 first, causing damage to the internal module.

[0039] Furthermore, if the lead-in rod 210 does not extend beyond the electrical module on the axial plane of the front end 100, it cannot effectively cover the axial range of the electrical module's location, weakening the lead-in capability and significantly increasing the probability of the electrical module being damaged by electrostatic discharge.

[0040] As a preferred embodiment, on the axial surface of the front end head 100, the lead-in end rod 210 extends along the axial direction of the front end head 100 to the front end face of the front end head 100, so that the end of the lead-in end rod 210 is flush with or substantially flush with the front end face of the front end head 100. This design extends the protection path of the lead-in end rod 210 and can flexibly adapt to the installation positions of various types of electrical modules inside the front end head 100.

[0041] Preferably, the front contact ring 200 has at least two lead-in rods 210, such as two, three or four, to fully capture and guide static electricity. The lead-in rods are evenly arranged along the axial direction of the front contact ring, and there is a gap between adjacent lead-in rods to ensure that each lead-in rod is independently conductive and does not interfere with each other, while improving the coverage and response speed of static electricity capture.

[0042] Preferably, refer to Figure 3As shown, the cross-section of the lead-in end rod 210 is arc-shaped, and the center of the lead-in end rod 210 coincides with the center of the front end head 100, thereby further conforming to the outer contour of the front end head 100 and improving the compactness and aesthetics of the overall structure. Specifically, when the cross-section of the lead-in end rod is arc-shaped, the width of the lead-in end rod 210 is equal to the arc length of its cross-section.

[0043] As a specific design, the width of the power lead-in rod 210 is 1mm to 2mm. For example, 1.2mm, 1.4mm, or 1.8mm.

[0044] Preferably, the end of the lead-in rod 210 has an acute angle, as shown in the reference. Figure 5 As shown, specifically, the included angle at the end of the lead-in rod 210 is less than 30°. The sharper tip structure of the lead-in rod 210 makes it easier to form a local high electric field intensity in the electric field, thereby preferentially inducing discharge and effectively guiding static electricity to dissipate along a predetermined path, avoiding random breakdown. This geometric optimization significantly improves static electricity capture efficiency without increasing space occupation, and is especially suitable for clinical scenarios where static electricity accumulates quickly in high-frequency operations or dry environments.

[0045] Reference Figure 6 As shown, the end of the power lead rod 210 is arc-shaped, which provides better structural strength and avoids stress concentration compared to an acute-angle structure.

[0046] Preferably, the aspect ratio of the lead-in end rod 210 is greater than 5:1, thereby further enhancing the tip discharge effect of the lead-in end rod 210 and improving the directionality and stability of electrostatic discharge.

[0047] In the radial direction, the outer surface 210a of the lead-in end rod 210 protrudes from the outer peripheral surface of the front end head by 0.1mm to 0.5mm, such as 0.15mm, 0.3mm or 0.48mm. Within this range, static electricity can be preferentially grounded from the lead-in end rod 210, while further reducing the step feel between the lead-in end rod 200 and the front end head 100, minimizing the impact on the user experience, and ensuring the positioning accuracy and structural stability of the lead-in end rod in mechanical assembly.

[0048] As a specific plan, refer to Figure 5 , 6 As shown, the front connector 200 has two lead-in rods 210, which are located on both sides of the front end head 100 in the radial direction, so that the two lead-in rods 210 are respectively located on both sides of the electrical module. This design can effectively protect the camera using limited space.

[0049] Specifically, such as Figure 7As shown, the radial surface of the front end head 100 has a receiving groove 110, and a portion of the power lead end rod 210 is embedded in the receiving groove 110. The power lead end rod 210 is further close to the camera and fully adapted to the front end head 100.

[0050] Specifically, such as Figure 7 , 8 As shown, a mating portion 120 is formed on the side of the front head 100 near the front connector ring 200. The outer diameter of the mating portion 120 is smaller than the inner diameter of the front connector ring. The mating portion 120 is inserted into the front connector ring 200. The contact area between the front head 100 and the front connector ring 200 is increased through the mating portion 120, so that the front head 100 and the front connector ring 200 are tightly connected.

[0051] More specifically, the front end 100 and the front connector ring 200 can be connected by adhesive.

[0052] Optional, such as Figure 8 As shown, the mating part 120 has a clearance notch 121 extending in the axial direction to allow passage of electrical modules and / or instrument channel tubes. This design can increase the capacity of the endoscope tip to some extent.

[0053] As an alternative, optical fibers are arranged within the front-end head 100 to provide illumination.

[0054] As an alternative, an LED lighting module can also be installed inside the front-end head 100, located near the camera.

[0055] Furthermore, due to assembly reasons, there are gaps between the endoscope camera and the electronic components in the prior art. These gaps are prone to air discharge, and the gaps between the LED and its wire (or soldered FPC) are an important cause of discharge breakdown leading to LED burnout and failure.

[0056] To solve the above problems, such as Figure 8 As shown, there are two clearance notches 121 in this application, one opposite to the installation position of the electrical module of the endoscope and the other opposite to the installation position of the instrument channel tube. In this way, the front end 100 is a semi-open endoscope camera support structure. This structure facilitates the flow of dispensing glue, and the glue can be smoothly poured into the gaps between all components, solving the static electricity problem caused by the difficulty in completely sealing the enclosed space.

[0057] As a more specific implementation, this embodiment also provides an endoscope, such as... Figure 9 As shown, the device includes the camera, electrical module, instrument channel tube, snake bone 300, steel wire 400, capillary tube 500, handle, adapter plate 600 and main unit as described above.

[0058] The front connector is fixedly connected to the snake bone 300, and the steel wire 400 is fixedly connected to the snake bone 300 or the front connector. The camera, electrical module, and instrument channel tube are installed to the front end 100; in the axial direction of the front end 100, the power lead rod 210 passes through and extends beyond the electrical module; an electrostatic insulation layer is provided on the outside of the front end 100 and the front connecting ring 200.

[0059] At least a portion of the capillary tube 500 is located inside the handle, and the adapter plate 600 is located inside the handle.

[0060] The steel wire 400 passes through and contacts the capillary tube 500. The capillary tube 500 is soldered to the grounding pin of the adapter plate 600. The adapter plate 600 is electrically connected to the host. The host discharges static electricity, thereby guiding the static electricity of the front end 100 to the ground terminal of the host via the steel wire 400, capillary tube 500, and adapter plate 600. This effectively avoids the risk of damage to the LED or camera due to electrostatic discharge and improves the stability and service life of the endoscope in complex working environments.

[0061] Specifically, the outer side of the snake bone 300 is wrapped with a snake bone 300 sheath, which serves as one of the external insulation layers of the cable. The snake bone 300 sheath has a certain degree of flexibility and its material can be PTU rubber, etc.

[0062] Specifically, the endoscope also includes a heat shrink tubing, which is fitted onto the front connector 200 and the front end head 100 to provide outer protection for the front connector 200. The heat shrink tubing smoothly transitions from the end face of the front end head 100 to the end of the snake bone 300 sheath. The heat shrink tubing can be made of PET or similar materials.

[0063] Therefore, as Figure 9 As shown, when the front connector 200 blocks / accepts electrostatic discharge, it conducts the electric charge through the snake bone 300 to the steel wire 400. The steel wire 400 then transfers the electric charge to the grounding pin of the adapter board 600, and finally to the host, where it is released by grounding. This design forms a complete grounding system, effectively transferring the current to a safe place and more effectively preventing components such as cameras from being subjected to continuous electrostatic discharge.

[0064] As a preferred option, such as Figure 9 As shown, the adapter board 600 is electrically connected to the static electricity storage steel plate 800 inside the main unit. Specifically, the adapter board 600 is electrically connected to the static electricity storage steel plate 800 via a wire through the circuit board 700 inside the main unit.

[0065] The electrostatic accumulator plate 800 is connected to an electrostatic discharge resistor 900, which is in the megohm range and is electrically connected to the power cord of the main unit. The discharge resistor slowly releases the accumulated charge to ground, preventing instantaneous discharge from impacting the circuit and ensuring that static electricity does not repeatedly accumulate within the system. Through the current-limiting effect of this megohm-level resistor, continuous and stable charge discharge can be achieved, further improving the reliability of the equipment in high-frequency plugging / unplugging or dry environments.

[0066] In this application, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0067] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An endoscope electrostatic grounding structure, comprising: The front end is used to install cameras, electrical modules, and instrument access tubes; A front connector is connected to the front end head, and the side of the front connector away from the front end head is used to connect to the grounded snake bone. Its features are: A current-leading end rod is formed on the side of the front connector near the front end head, wherein the length-to-width ratio of the current-leading end rod is greater than 2.5:1; the end of the current-leading end rod is pointed or rounded. The power lead rod extends toward the front end face of the front end head, and in the axial direction of the front end head, the power lead rod passes through and extends beyond the position where the electrical module is installed on the front end head; In the radial direction, the outer surface of the lead-in end rod protrudes beyond the outer peripheral surface of the front end head.

2. The endoscope electrostatic grounding structure according to claim 1, characterized in that: The cross-section of the power-leading end rod is arc-shaped, and the center of the power-leading end rod coincides with the center of the front end head.

3. The endoscope electrostatic grounding structure according to claim 1, characterized in that: The width of the lead-in end rod is 1mm to 2mm; or, the length-to-width ratio of the lead-in end rod is greater than 5:

1.

4. The endoscope electrostatic grounding structure according to claim 3, characterized in that: In the radial direction, the outer surface of the lead-in end rod protrudes 0.1 mm to 0.5 mm beyond the outer circumferential surface of the front end head.

5. The endoscope electrostatic grounding structure according to claim 1, characterized in that: On the axial surface of the front end head, the lead-in end rod extends along the axial direction of the front end head to the front end face of the front end head, such that the end of the lead-in end is flush or substantially flush with the end face of the front end head.

6. The endoscope electrostatic grounding structure according to claim 1, characterized in that: The front connector has at least two lead-in rods, which are evenly arranged along the axial direction of the front connector, with gaps between adjacent lead-in rods.

7. The endoscope electrostatic grounding structure according to claim 1, characterized in that: The radial surface of the front end head is formed with a receiving groove, and a portion of the power lead end rod is embedded in the receiving groove.

8. The endoscope electrostatic grounding structure according to claim 1, characterized in that: The front end has a mating part formed on the side near the front connector ring. The outer diameter of the mating part is smaller than the inner diameter of the front connector ring. The mating part is inserted into the front connector ring. The mating part has a clearance notch extending in the axial direction to allow passage for electrical modules and / or instrument channel tubes.

9. An endoscope, characterized in that, The device includes an endoscope electrostatic grounding structure, a camera, an electrical module, an instrument channel tube, a snake skeleton, a steel wire, a capillary tube, a handle, an adapter plate, and a main unit, as claimed in any one of claims 1-8; the front connecting ring is fixedly connected to the snake skeleton, and the steel wire is fixedly connected to the snake skeleton or the front connecting ring; The camera, electrical module, and instrument channel tube are installed to the front end head; in the axial direction of the front end head, the power lead rod passes through and extends beyond the electrical module; an electrostatic insulation layer is provided on the outside of the front end head and the front connecting ring; At least a portion of the capillary is located within the handle, and the adapter plate is located within the handle; The steel wire passes through and contacts the capillary tube, the capillary tube is soldered to the grounding pin of the adapter plate, and the adapter plate is electrically connected to the host, so that the host can discharge static electricity.

10. An endoscope according to claim 9, characterized in that: The host is equipped with an electrostatic accumulation steel plate. The adapter plate is electrically connected to the electrostatic storage steel plate inside the main unit; The electrostatic storage steel plate is connected to an electrostatic discharge resistor, which is in the megohm range and is electrically connected to the power cord of the host.

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