Endoscope front end structure, insertion part and endoscope

Abstract

The present invention provides a front end structure, an insertion part and an endoscope of an endoscope, and relates to the technical field of medical devices. The front end structure includes a front end shell, whose distal end surface is provided with a mounting hole; a camera module, which is installed in the mounting hole, and a receiving gap is formed between the camera module installed in place and the distal opening of the mounting hole; a transparent optical disc, which is movably arranged in the receiving gap, and the transparent optical disc has a rotating part, and the rotating part is evenly distributed circumferentially on the proximal surface of the transparent optical disc; a water spraying part, including a spraying part and a circulation part, the spraying part is arranged in the front end shell, and the spraying part has a spraying port facing the distal end surface of the transparent optical disc; the circulation part is arranged in the front end shell and communicated with the spraying part, and is used for the flushing liquid to enter from the proximal end of the endoscope and flow into the spraying part, so that the flushing liquid is sprayed to the distal end surface of the transparent optical disc through the spraying port. Compared with the prior art, the present invention can solve the problem of blurred imaging of the camera module.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a front end structure, an insertion portion and an endoscope of an endoscope. Background Art

[0002] An endoscope is a commonly used medical device, which generally consists of a bendable part, a light source part, and a lens part. When used, the endoscope enters the patient's body through a natural orifice of the human body or an incision formed by surgery. After the endoscope is introduced into the organ to be inspected, the doctor can directly observe the lesions in the relevant parts.

[0003] The endoscope includes an operating handle and an insertion part. During surgery, the doctor inserts the insertion part into the human body through the human cavity. The insertion part is equipped with a camera module and an instrument tube. The camera module is electrically connected to the camera host. By controlling the operating handle, the active bending section at the front end of the insertion part can be pulled by a traction rope to achieve a bending action, thereby changing the direction of the front end of the insertion part, allowing the camera module to present the irradiated image on the camera host.

[0004] The inventors have found in many operations that after the insertion portion is inserted into a human body cavity, the image presented by the camera module on the camera host often appears blurred, thereby affecting the doctor's observation. Summary of the invention

[0005] In order to solve the problem of blurred imaging of a camera module, the present application provides a front end structure, an insertion portion and an endoscope of an endoscope.

[0006] In a first aspect, the present application provides a front-end structure, which adopts the following technical solution:

[0007] A front end structure, applied to the insertion part of an endoscope, characterized in that it comprises: a front end shell, a distal end surface of which is provided with a mounting hole; a camera module, installed in the mounting hole, and a receiving gap is formed between the camera module installed in place and the distal end opening of the mounting hole; a transparent optical disc, movably arranged in the receiving gap, the transparent optical disc having a rotating part, and a plurality of the rotating parts are evenly distributed circumferentially on the proximal end surface of the transparent optical disc; a water spraying member, comprising a spraying part and a circulation part, the spraying part being arranged in the front end shell, and the spraying part having a water spraying part directed toward the transparent optical disc The distal end surface of the optical disc comprises a jet port; the circulation portion is arranged in the front end shell and is connected with the jet port, and is used for the flushing liquid to enter from the proximal end of the endoscope and flow into the jet port, so that the flushing liquid is sprayed to the distal end surface of the optical disc through the jet port, wherein the outer peripheral wall of the camera module and the inner peripheral wall of the mounting hole form an annular gap, the rotating portion extends into the annular gap, and the annular gap partially overlaps with the flow path of the flushing liquid in the circulation portion, so that the optical disc can rotate circumferentially in the accommodating gap under the action of the flushing liquid.

[0008] Preferably, the circulation portion has at least a first circulation section, a second circulation section and a third circulation section which are connected in sequence, wherein the distal end of the first circulation section is connected to the injection section, the proximal end of the third circulation section is connected to the operating handle of the endoscope via the insertion section, and the flow path of the flushing fluid in the second circulation section partially overlaps with the annular gap.

[0009] Preferably, an extension path of the second flow section is tangent to the outer periphery of the annular gap, so that the flushing liquid flowing in the second flow section applies a tangential thrust to the rotating part.

[0010] Preferably, one end of the rotating portion away from the optical disc extends into the second flow section and is located on the flow path of the flushing liquid, or the proximal opening of the third flow section is inclined toward the annular gap side.

[0011] Preferably, the rotating portion extends obliquely from the distal end to the proximal end; and / or, when the rotating portion is close to the second flow section, the angle formed by the extension path of the corresponding rotating portion and the flow path of the flushing liquid in the second flow section from the distal end to the proximal end is an acute angle.

[0012] Preferably, the front end shell has a limiting sealing portion, and the limiting sealing portion is circumferentially embedded in the distal opening edge of the mounting hole.

[0013] Preferably, the injection portion is protrudingly arranged at the distal end of the front end shell, and the injection portion is located at one side of the mounting hole; and the axial extension path of the injection port intersects with the distal end surface of the optical disc.

[0014] Preferably, the distal end of the optical disc is arranged to protrude outward.

[0015] In a second aspect, the present application provides an insertion portion, comprising a front end structure described in the above technical solution.

[0016] In a third aspect, the present application provides an endoscope, comprising an operating handle and the insertion portion described in the above scheme, wherein the operating handle is disposed at the proximal end of the insertion portion.

[0017] The present invention has the following advantages and beneficial effects:

[0018] First of all, the overall design effectively solves the problem of blurred images during endoscope surgery by introducing key components such as the transparent optical disc, the injection part, and the circulation part. The structural optimization of the transparent optical disc, especially the design of the refractive surface protruding outward at the distal end, can significantly improve the refraction and focusing efficiency of light, thereby improving the imaging quality of the camera module. Clear images are crucial for doctors to diagnose and treat, and this design directly enhances the reliability and effectiveness of endoscopes in clinical applications.

[0019] Secondly, the protruding setting of the injection part and its good cooperation with the transparent optical disc ensure that the flushing liquid can efficiently and evenly cover the surface of the transparent optical disc. By optimizing the angle and pressure of the liquid injection, dirt and body fluids during the flushing process can be quickly removed to keep the transparent optical disc clean. This feature not only improves the cleaning efficiency of the endoscope, but also reduces the risk of misdiagnosis that may occur during surgery due to blurred images, thereby ensuring the safety of patients.

[0020] In addition, the segmented design of the circulation part allows the flushing liquid to flow smoothly between different areas, ensuring the effective transfer of the liquid during the cleaning process. The overlapping design of the flow path and the annular gap allows the transparent disc to rotate circumferentially under the action of the flushing liquid. This dynamic cleaning mechanism further improves the cleaning effect and ensures the optimal performance of the transparent disc during use.

[0021] Furthermore, the clever combination of the rotating part and the flow path improves the liquid spraying effect of the spraying part, thereby enhancing the cleaning ability of the transparent disc. This innovative design drives the transparent disc to rotate through water power, allowing the flushing liquid to fully play its role during the flow process, effectively avoiding the cleaning blind spots that may be caused by static flushing.

[0022] In summary, this application significantly improves the imaging quality and cleaning efficiency of the endoscope by optimizing the technical features of the optical disc, the ejection part, and the circulation part in the design of the front end structure of the endoscope. These beneficial effects enable the endoscope to not only provide clearer images in practical applications, but also ensure the safety and medical effects of patients during surgery and diagnosis, providing strong support for the advancement and development of endoscope technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the front end housing of some embodiments of the present application. Figure 1 ;

[0025] Figure 2 A partial cross-sectional view of the front end housing of some embodiments of the present application Figure 1 ;

[0026] Figure 3 A partial cross-sectional view of the front end housing of some embodiments of the present application Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the structure of the front end housing of some embodiments of the present application. Figure 2 ;

[0028] Figure 5 yes Figure 3 A partial enlarged view of the

[0029] Figure 6 is a schematic diagram of the structure of a transparent optical disc used to illustrate some embodiments of the present application;

[0030] Figure 7 A partial cross-sectional view of the front end housing of some embodiments of the present application Figure 3 ;

[0031] Figure 8 yes Figure 7 A magnified view of part A in FIG.

[0032] Fig. 9 It is a schematic diagram of the structure of an endoscope in some embodiments of the present application.

[0033] The markings in the figure are:

[0034] 100, front end shell; 110, mounting hole; 120, accommodating gap; 130, annular gap; 140, limiting sealing part; 200, camera module; 300, transparent optical disc; 310, rotating part; 400, water spraying part; 410, injection part; 411, injection port; 420, circulation part; 421, first circulation section; 422, second circulation section; 423, third circulation section; 500, operating handle. DETAILED DESCRIPTION

[0035] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0036] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0037] In the related art, an endoscope is an important medical device widely used in the medical field, mainly used for direct visual inspection of the patient's internal organs. It is usually composed of a bendable part, a light source part and a lens part. When in use, the endoscope can enter the body through the natural orifices of the human body or surgical incisions. During the operation, the doctor inserts the insertion part of the endoscope through the human body cavity, thereby guiding it to the organ to be inspected. Once the endoscope successfully enters, the doctor can directly observe the lesions of the relevant parts for diagnosis and treatment.

[0038] The endoscope consists of two parts: an operating handle and an insertion part. During the operation, the doctor inserts the insertion part into the body through the human cavity with the help of the operating handle. The insertion part is equipped with a camera module and an instrument tube, and the camera module is electrically connected to the camera host. The doctor can control the operating handle and use the traction rope to pull the active bending section at the front end of the insertion part to achieve the bending of the insertion part and change the direction of its front end so that the camera module can effectively capture the irradiated image and transmit it to the camera host for display.

[0039] However, in many actual operations, the inventors noticed a significant problem, that is, when the insertion part is successfully inserted into the human body cavity, the image transmitted by the camera module to the camera host is often blurred. This phenomenon seriously affects the doctor's observation and judgment of the lesion during the operation, which may have a negative impact on the patient's treatment effect. The blurriness of the front end of the camera module is mainly due to the body fluids adhering to its surface during the operation. The presence of these body fluids makes it impossible for the camera module to clearly capture the image of the lesion, affecting the doctor's vision clarity and the accuracy of judgment. Therefore, although the endoscope has high flexibility and adaptability, the reduction in its image quality has become a major hidden danger in medical operations.

[0040] This technical problem not only frequently occurs during the use of endoscopes, but also has a direct negative impact on doctors' surgical efficiency and patients' treatment outcomes. Blurred images make it difficult for doctors to accurately determine the location of lesions during surgery, which may lead to misdiagnosis or missed diagnosis. In addition, when doctors perform complex surgeries, they often need to make quick decisions based on images. Unclear images undoubtedly increase the risk of surgery and may even prolong the operation time, affecting the patient's recovery.

[0041] In summary, the current technical challenges faced by endoscopes in practical applications are mainly concentrated on the problem of blurred images in the camera module. The emergence of this problem is not only due to the limitations of equipment design, but also closely related to the inevitable physiological factors during the operation. Therefore, it is urgent to improve the clarity of endoscopic images based on existing technologies, thereby enhancing the doctor's observation ability and surgical safety. This technological innovation can not only improve the performance of medical devices, but also play a vital role in the treatment of patients.

[0042] Based on this, the present application proposes a front end structure of an endoscope.

[0043] Please refer to Figure 1 to Figure 9 In some embodiments, the front end structure is applied to the insertion part of the endoscope, and includes a front end housing 100, a camera module 200, a transparent optical disc 300, and a water spraying member 400. The distal end surface of the front end housing 100 is provided with a mounting hole 110, the camera module 200 is installed in the mounting hole 110, and an accommodation gap 120 is formed between the distal end openings of the mounting hole 110.

[0044] Exemplarily, the camera module 200 is electrically connected to the camera host via a wire disposed in the insertion portion, so that the image captured by the camera module 200 at the far end of the front end structure can be projected onto the display screen of the camera host, thereby facilitating the doctor's observation of the diseased tissue in the human cavity.

[0045] At the same time, the transparent optical disc 300 is movably disposed in the accommodating gap 120. Exemplarily, the cross-sectional shape of the transparent optical disc 300 is circular, the cross-sectional shape of the accommodating gap 120 is also circular, and the inner diameter of the accommodating gap 120 is adapted to the outer diameter of the transparent optical disc 300, so that the transparent optical disc 300 can be embedded in the accommodating gap 120, and the movable mode of the transparent optical disc 300 in the accommodating gap 120 is rotation, that is, the transparent optical disc 300 can rotate around the central axis of the accommodating gap 120 under the driving action of an external force.

[0046] Furthermore, the water spraying member 400 includes a spraying portion 410 and a circulation portion 420, and the spraying portion 410 is disposed on the front housing 100. Exemplarily, the spraying portion 410 is protrudingly disposed at the distal end of the front housing 100, and the spraying portion 410 is located on one side of the mounting hole 110. Further, the spraying portion 410 has a spraying port 411, and the spraying port 411 faces the distal end surface of the transparent optical disc 300. In this way, when the flushing liquid is ejected from the spraying port 411, the flushing liquid can directly flush the distal end surface of the transparent optical disc 300, thereby flushing away the body fluid on the distal end surface of the transparent optical disc 300.

[0047] Further, the circulation part 420 is disposed in the front end housing 100 and communicated with the injection part 410, and is used for the flushing liquid to enter from the proximal end of the endoscope and flow into the injection part 410, so that the flushing liquid is sprayed to the distal end surface of the optical disc 300 through the injection port 411. Exemplarily, the circulation part 420 extends to the handle through the insertion part, and extends to the outside of the handle through the instrument tube on the handle, so that the water supply mechanism is connected to the circulation part 420, and the flushing liquid is pumped into the circulation part 420 through the water supply mechanism, and finally sprayed out from the injection port 411 of the injection part 410. Exemplarily, the circulation part 420 is configured as a tube body, and the tube body can normally allow the flushing liquid to circulate in the insertion part.

[0048] Exemplarily, the optical disc 300 has a rotating portion 310, and a plurality of rotating portions 310 are evenly distributed circumferentially on the proximal surface of the optical disc 300. At the same time, the outer peripheral wall of the camera module 200 and the inner peripheral wall of the mounting hole 110 form an annular gap 130, and the rotating portion 310 extends into the annular gap 130, and the annular gap 130 partially overlaps with the flow path of the flushing liquid in the circulation portion 420, so that the optical disc 300 rotates circumferentially in the accommodating gap 120 under the action of the flushing liquid.

[0049] In this configuration, the distal end surface of the front housing 100 is provided with a mounting hole 110, and the presence of the mounting hole 110 provides a stable foundation for the installation of the camera module 200. When the camera module 200 is installed in the mounting hole 110, the annular gap 130 formed between the outer peripheral wall of the camera module 200 and the inner peripheral wall of the mounting hole 110 is the key to realize the rotation of the transparent optical disc 300. This design enables the camera module 200 to not only maintain a stable position during observation, but also avoid the imaging effect being affected by interference from debris.

[0050] In the arrangement of the transparent optical disc 300, the transparent optical disc 300 is rotatably arranged in the accommodation gap 120, and is equipped with a plurality of circumferentially uniformly distributed rotating parts 310. The existence of these rotating parts 310 enables the transparent optical disc 300 to achieve circumferential rotation under the action of the flushing liquid. Specifically, when the flushing liquid flows into the water spraying part 400 through the circulation part 420, the flow of the flushing liquid not only transmits power to the spraying part 410, but also forms an impact on the rotating part 310, thereby driving the transparent optical disc 300 to rotate in the accommodation gap 120. The injection port 411 of the injection part 410 faces the distal end surface of the transparent optical disc 300. Through the hydrodynamic effect, the ejected water flow can effectively flush the surface of the transparent optical disc 300 and remove the attached body fluids or impurities.

[0051] In actual use, the flushing liquid enters the circulation part 420 from the proximal end of the endoscope, and flows into the injection part 410 through the connection between the circulation part 420 and the injection part 410. When the flushing liquid flows in the circulation part 420, the rotation of the transparent optical disc 300 is realized due to the partial overlap of the flow path and the annular gap 130. In this process, the design of the annular gap 130 provides additional hydrodynamic support, so that the transparent optical disc 300 can maintain a continuous rotation state under the impetus of the flushing liquid, thereby improving the cleaning effect. Through this design, the flow of the flushing liquid in the circulation part 420 not only drives the rotation of the transparent optical disc 300, but also ensures that the water flow ejected by the injection part 410 can fully act on the surface of the transparent optical disc 300. The impact force of the water flow and the rotation of the transparent optical disc 300 form a powerful cleaning effect, which significantly reduces the blurring caused by residual body fluids.

[0052] In summary, the front-end structure of the present invention realizes the dual functions of cleaning and imaging of the insertion part of the endoscope by organically combining various technical features. The flow of flushing liquid in the water spraying part 400 and the rotation of the transparent optical disc 300 not only improve the cleaning effect of the water jet on the transparent optical disc 300, but also ensure that the doctor can obtain a clearer image during operation. The realization of this technical effect significantly improves the use efficiency of the endoscope and provides reliable support for clinical medicine.

[0053] In some embodiments, Figure 3 , Figure 5As shown, the circulation section 420 at least has a first circulation section 421, a second circulation section 422 and a third circulation section 423 which are connected in sequence, wherein the distal end of the first circulation section 421 is connected to the injection section 410, the proximal end of the third circulation section 423 is connected to the operating handle 500 of the endoscope via the insertion section, and the flow path of the flushing liquid in the second circulation section 422 partially overlaps with the annular gap 130. Exemplarily, the side wall of the second circulation section 422 close to the annular gap 130 is completely open, so that the communication effect between the second circulation section 422 and the annular gap 130 is better, and when the flushing liquid passes through the second circulation section 422, part of the flushing liquid can be diverted into the annular gap 130 normally.

[0054] On this basis, the distal end of the first flow section 421 is connected to the injection section 410. This design enables the flushing liquid to flow quickly and efficiently from the proximal end of the endoscope to the injection section 410. When the doctor starts the flushing function, the flushing liquid enters the flow section 420 from the operating handle 500 of the endoscope, and quickly reaches the injection section 410 through the first flow section 421. This process ensures sufficient supply of flushing liquid in the injection section 410, thereby enhancing the power of the water flow at the injection port 411 of the injection section 410, providing strong support for the cleaning of the optical disc 300.

[0055] The proximal end of the third flow section 423 is connected to the operating handle 500 of the endoscope via the insertion portion. This design ensures the connectivity and integrity of the entire system. Through the third flow section 423, the flow of the flushing liquid is effectively guided to form a closed flow path, so that the flushing liquid flows more smoothly throughout the system. This closed design not only improves the efficiency of liquid flow, but also reduces the resistance that may be caused by the liquid during the flow process, ensuring the continuity and stability of the flushing effect.

[0056] More importantly, the design that the flow path of the rinse liquid in the second flow section 422 partially overlaps with the annular gap 130 further enhances the cleaning ability of the transparent optical disc 300. During the flow of the rinse liquid, the presence of the annular gap 130 provides important hydrodynamic support for the rotation of the transparent optical disc 300. Due to the overlap of the flow paths, when the rinse liquid passes through the second flow section 422, it will directly act on the rotating parts 310 around the transparent optical disc 300, pushing these rotating parts 310 to move, so that the water flow sprayed by the spray part 410 can more effectively realize the rotation of the transparent optical disc 300 in the accommodating gap 120.

[0057] In some embodiments, reference Figure 5, the extension path of the second flow section 422 is tangent to the outer periphery of the annular gap 130, so that the flushing liquid flowing in the second flow section 422 applies a tangential thrust to the rotating part 310. In this way, when the flushing liquid flows through the second flow section 422, because its extension path is tangent to the outer periphery of the annular gap 130, the flushing liquid will act on the rotating part 310 in a tangential manner. The application of this tangential thrust enables the transparent optical disc 300 to rotate more flexibly, and enhances the cleaning effect of the flushing liquid on the surface of the transparent optical disc 300. Due to the direct impact of the flushing liquid on the rotating part 310, the dirt and body fluids attached to the surface of the transparent optical disc 300 can be more effectively removed, preventing the occurrence of blurred imaging. In addition, the application of tangential thrust ensures that the flow of the flushing liquid will not be slowed down due to resistance, thereby optimizing the efficiency of the overall liquid flow. This design not only improves the cleaning ability of the transparent optical disc 300, but also reduces the risk of failure that may occur during the use of the endoscope.

[0058] In some embodiments, Figure 7 , Figure 8 As shown, the proximal opening of the third circulation section 423 is inclined toward the annular gap 130 side. Exemplarily, the proximal opening of the third circulation section 423 is a connection port with the second circulation section 422. In this way, the inclined opening design enables the flushing liquid to contact the rotating part 310 along a certain angle when flowing into the annular gap 130. This adjustment of the flow direction not only reduces the resistance to liquid flow, but also enhances the impact force of the flushing liquid on the rotating part 310 and the transparent optical disc 300, thereby promoting the rotation and cleaning process of the transparent optical disc 300. The flow of the flushing liquid in the annular gap 130 becomes more uniform, effectively avoiding the cleaning blind area caused by uneven flow velocity, thereby improving the cleaning effect on the surface of the transparent optical disc 300.

[0059] In addition, the design of the inclined opening also allows the washing liquid to continuously apply pressure to the rotating part 310. This continuous hydrodynamic effect not only promotes the rotation of the transparent optical disc 300, but also ensures that during the rotation process, the washing liquid can continuously wash the surface of the transparent optical disc 300 to remove any attached dirt or body fluids. In this way, not only the clarity of the transparent optical disc 300 is improved, but also the risk of image blur caused by incomplete cleaning is reduced.

[0060] In some embodiments, the end of the rotating part 310 away from the transparent optical disc 300 extends into the second circulation section 422 and is located on the flow path of the rinsing liquid. In this way, the extension design of the rotating part 310 enables it to be immersed in the flow path of the rinsing liquid. When the rinsing liquid flows through the second circulation section 422, the rotating part 310 will be impacted by the liquid, forming a direct hydrodynamic effect. The effect of this hydrodynamic force prompts the rotating part 310 to rotate under the impetus of the flowing rinsing liquid, so that the cleaning efficiency of the transparent optical disc 300 is greatly improved. In addition, the advantage of this structure is that the extended position of the rotating part 310 can ensure that it is always in the core area of ​​the flow of the rinsing liquid, avoiding the reduction of the cleaning effect due to uneven flow. As the rotating part 310 rotates, the rinsing liquid can continuously flush the surface of the transparent optical disc 300, remove attached dirt and body fluids, and ensure that the transparent optical disc 300 always maintains good clarity.

[0061] In some embodiments, in combination Figure 5 , Figure 6 , the rotating part 310 extends obliquely from the distal end to the proximal end; and / or, when the rotating part 310 is close to the second flow section 422, the angle formed by the extension path of the corresponding rotating part 310 and the flow path of the flushing liquid in the second flow section 422 from the distal end to the proximal end is an acute angle. In this way, the inclined extension design of the rotating part 310 enables it to better interact with the flowing flushing liquid during the rotation process. When the flushing liquid flows through the second flow section 422, the inclined rotating part 310 can more effectively capture and utilize the power brought by the liquid flow. Such a design not only improves the rotation efficiency of the rotating part 310, but also ensures that the liquid can fully act on the surface of the transparent optical disc 300, thereby removing the attached dirt and body fluid residue to the maximum extent.

[0062] In addition, the acute angle design formed by the rotating part 310 and the flow path of the washing liquid further enhances the transmission of flow power. Since the angle is an acute angle, the washing liquid will apply torque in a more direct way when passing through the rotating part 310, so that the rotating part 310 can start to rotate more quickly. This optimization of flow power effectively reduces the friction resistance between the washing liquid and the rotating part 310, thereby increasing the rotation speed of the transparent optical disc 300.

[0063] In practical applications, the effects of this design are reflected in several aspects. First, the inclined rotating part 310 can better adapt to the flow direction of the flushing liquid, so that the liquid will not encounter flow obstacles during the flushing process, thereby maintaining smooth flow. Second, due to the existence of the inclined design, when the transparent optical disc 300 rotates, the performance will not be reduced due to the conflict between the rotating part 310 and the flow path.

[0064] In some embodiments, in combination Figure 5The front housing 100 has a limiting seal 140, which is circumferentially embedded in the distal opening edge of the mounting hole 110. Exemplarily, the limiting seal 140 and the edge of the distal end surface of the transparent optical disc 300 are opposite in the axial direction of the front housing 100, so that when the transparent optical disc 300 has a tendency to move out of the accommodating gap 120, the limiting seal 140 can limit the transparent optical disc 300, so that the transparent optical disc 300 is not easy to escape from the accommodating gap 120. Furthermore, during flushing, under the action of the water pressure of the flushing liquid, the flushing liquid pushes the limiting sealing portion 140 to abut against the edge of the distal surface of the transparent optical disc 300 to form a sealing fit, so that the flushing liquid entering the annular gap 130 is not easy to flow out from the gap between the transparent optical disc 300 and the limiting sealing portion 140, thereby improving the utilization rate of the flushing liquid, allowing most of the flushing liquid to be sprayed out from the injection port 411, and at the same time allowing the flushing liquid to maintain a good pressurized state when flowing in the circulation portion 420, thereby increasing the pressure of the flushing liquid sprayed from the injection port 411, and allowing the flushing liquid with a certain pressure to more easily clean up the body fluids attached to the distal surface of the transparent optical disc 300.

[0065] In some embodiments, Figure 3 , Figure 4 As shown, the injection portion 410 is protruded at the distal end of the front housing 100 , and the injection portion 410 is located at one side of the mounting hole 110 . Further, the axis extension path of the injection port 411 intersects with the distal end surface of the optical disc 300 .

[0066] Thus, the protruding arrangement of the spraying portion 410 enables it to directly face the transparent optical disc 300 during the washing process, thereby ensuring that the sprayed liquid can accurately and efficiently cover the surface of the transparent optical disc 300. When the washing liquid is sprayed through the spraying portion 410, the spray angle and impact force of the liquid are maximized, and this direct liquid impact can quickly remove dirt and body fluids attached to the transparent optical disc 300, significantly improving the cleaning effect.

[0067] Secondly, the design that the axis extension path of the injection port 411 intersects the distal end surface of the optical disc 300 further optimizes the distribution of the injected liquid. With this design, the injected liquid can not only directly impact the surface of the optical disc 300, but also form a more ideal liquid flow pattern when in contact. This flow pattern ensures that the flushing liquid can be evenly distributed on the entire surface of the optical disc 300, effectively avoiding the cleaning blind area caused by uneven liquid distribution, and ensuring that every part of the optical disc 300 can be fully cleaned.

[0068] In addition, this design also plays an important role in improving the quality of endoscopic imaging. The cleanliness of the transparent optical disc 300 directly affects the clarity of the endoscopic image. The optimized design of the ejection part 410 can ensure that the transparent optical disc 300 remains clear during use, thereby improving the doctor's observation effect during surgery or examination and reducing the risk of misdiagnosis caused by blurred imaging.

[0069] In some embodiments, the distal end surface of the transparent optical disc 300 is convex outward (not shown in the figure). Exemplarily, the distal end surface of the transparent optical disc 300 is a refractive surface. In this way, the convex design of the distal end surface of the transparent optical disc 300 can effectively optimize the refraction and focusing of light. When light passes through the transparent optical disc 300, the design of the refractive surface allows the light to enter the camera module 200 at an optimal angle, thereby reducing imaging distortion caused by improper refraction of light. This structure ensures that the camera module 200 can capture clearer and more realistic images, allowing doctors to obtain higher quality visual information during examinations or operations.

[0070] Secondly, the refractive surface structure of the optical disc 300 also plays a positive role in the cleaning process. Since the distal end is protruding outward, the flushing liquid can better cover and clean the surface of the optical disc 300, and body fluids are not easy to adhere to the optical disc 300, thereby reducing the interference of dirt and body fluids on light. This design ensures that the optical disc 300 can maintain the best optical performance in actual use, avoids imaging blur or distortion caused by surface dirt, and improves the overall imaging quality of the endoscope.

[0071] In addition, the refractive surface design of the transparent optical disc 300 also shows superiority in processing light at different angles. Due to its unique curvature, the transparent optical disc 300 can effectively focus light from different angles, allowing the camera module 200 to obtain clear images under various operating conditions. This feature is particularly important in complex surgical environments, which can effectively reduce imaging problems caused by angle changes and improve the doctor's operating confidence and accuracy.

[0072] See also Figure 1 to Figure 9 The present application also provides an insertion portion, applied to an endoscope, comprising a front end structure of any one of the above-mentioned embodiments.

[0073] See also Figure 1 to Figure 9 The present application also provides an endoscope, comprising an operating handle 500 and the insertion portion of the above-mentioned solution, and the operating handle 500 is arranged at the proximal end of the insertion portion.

[0074] The endoscope has the same or corresponding technical features as the aforementioned insertion part, and can achieve the same or corresponding technical effects. At the same time, the endoscope of the embodiment of the present application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiment of the present application does not specifically limit the type of the endoscope.

[0075] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A front end structure, applied to the insertion portion of an endoscope, characterized in that: include: A front end housing (100), a distal end surface of which is provided with a mounting hole (110); A camera module (200) is installed in the installation hole (110), and an accommodation gap (120) is formed between the installed camera module (200) and the distal opening of the installation hole (110); A translucent optical disc (300) is movably disposed in the accommodating gap (120), the translucent optical disc (300) having a rotating portion (310), and a plurality of the rotating portions (310) are evenly distributed circumferentially on the proximal end surface of the translucent optical disc (300); A water spraying member (400) comprising a spraying portion (410) and a circulation portion (420), wherein the spraying portion (410) is disposed on the front end housing (100), and the spraying portion (410) has a spraying port (411) facing the distal end surface of the optical disc (300); The circulation portion (420) is disposed in the front end housing (100) and communicated with the injection portion (410), and is used for allowing the flushing liquid to enter from the proximal end of the endoscope and flow into the injection portion (410), so that the flushing liquid is sprayed onto the distal end surface of the optical disc (300) through the injection port (411), wherein: The outer peripheral wall of the camera module (200) and the inner peripheral wall of the mounting hole (110) form an annular gap (130), the rotating portion (310) extends into the annular gap (130), and the annular gap (130) partially overlaps with the flow path of the flushing liquid in the circulation portion (420), so that the transparent optical disc (300) rotates circumferentially in the accommodating gap (120) under the action of the flushing liquid.

2. A front end structure according to claim 1, characterized in that: The circulation portion (420) comprises at least a first circulation section (421), a second circulation section (422) and a third circulation section (423) which are connected in sequence, wherein: The distal end of the first flow section (421) is connected to the injection portion (410), the proximal end of the third flow section (423) is connected to the operating handle (500) of the endoscope via the insertion portion, and the flow path of the flushing liquid in the second flow section (422) partially overlaps with the annular gap (130).

3. A front end structure according to claim 2, characterized in that: The extension path of the second flow section (422) is tangent to the outer periphery of the annular gap (130), so that the flushing liquid flowing in the second flow section (422) applies a tangential thrust to the rotating part (310).

4. A front end structure according to claim 2, characterized in that: One end of the rotating portion (310) away from the optical disc (300) extends into the second flow section (422) and is located on the flow path of the flushing liquid. Alternatively, the proximal opening of the third flow section (423) is inclined toward the annular gap (130).

5. A front end structure according to claim 2, characterized in that: The rotating portion (310) extends obliquely from the distal end to the proximal end; And / or, when the rotating portion (310) is located close to the second flow section (422), in the direction from the distal end to the proximal end, an angle formed by an extension path of the corresponding rotating portion (310) and a flow path of the flushing liquid in the second flow section (422) is an acute angle.

6. A front end structure according to claim 1, characterized in that: The front end housing (100) has a position limiting sealing portion (140), and the position limiting sealing portion (140) is circumferentially embedded in the distal opening edge of the mounting hole (110).

7. A front end structure according to any one of claims 1 to 6, characterized in that: The injection portion (410) is protrudingly arranged at the far end of the front end housing (100), and the injection portion (410) is located on one side of the mounting hole (110); An extended path of the axis of the injection port (411) intersects with the distal end surface of the optical disc (300).

8. A front end structure according to any one of claims 1 to 6, characterized in that: The distal end surface of the transparent optical disc (300) is arranged to protrude outwards.

9. An insertion portion, applied to an endoscope, characterized in that: Comprising the front end structure according to any one of claims 1 to 8.

10. An endoscope, characterized in that: It comprises an operating handle (500) and the insertion part according to claim 8, wherein the operating handle (500) is arranged at the proximal end of the insertion part.

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