Endoscope insertion structure and endoscope

Abstract

The embodiment of the utility model belongs to the technical field of medical equipment, and particularly relates to an endoscope insertion structure and an endoscope. The embodiment of the utility model aims to solve the technical problem that the image effect is affected due to the fact that a camera shooting part is not cleaned thoroughly in the related technology. According to the endoscope insertion structure, the nozzle and the camera shooting part are installed on the installation table of the head assembly, and the fluid is sprayed out of the spraying end of the nozzle to flush the camera shooting part. Wherein the nozzle is mounted on a first mounting surface formed by the mounting table, and the camera part is opposite to the spraying end of the nozzle. The size, protruding out of the first mounting surface, of the diffusion surface is gradually increased in the fluid spraying direction of the nozzle, an inclined diffusion structure is formed, fluid sprayed out of the nozzle is diffused, the impact area of the fluid is increased, the whole camera part is covered, the surface, away from the mounting table, of the camera part is kept clean, and then a clear image is formed.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an endoscope insertion structure and an endoscope. Background Technology

[0002] An endoscope is an instrument used for medical examinations and surgeries. It can be inserted into the body through natural openings or small incisions, allowing doctors to directly observe internal organs and tissues. An endoscope typically consists of a long, thin insertion section, one end of which is equipped with a light source and a camera unit, capable of transmitting internal images to an external monitor.

[0003] In related technologies, the front end of the insertion part is also provided with a nozzle. The nozzle first sprays cleaning fluid into the camera part to wash away the body fluids and other adhering substances on the camera part; then the nozzle sprays gas into the camera part to remove the cleaning fluid remaining on the camera part.

[0004] However, residues or cleaning fluid remaining on the surface of the camera or at the edges of the camera can affect image quality. Utility Model Content

[0005] This application provides an endoscope insertion structure and an endoscope to solve the technical problem that residual impurities after cleaning the insertion part of existing endoscopes affect the image quality.

[0006] In a first aspect, embodiments of this application provide an endoscope insertion structure, which includes: an insertion tube and a head assembly, wherein the insertion tube is connected to the head assembly; the head assembly includes a mounting stage, a nozzle, and a camera unit;

[0007] Both the nozzle and the camera are mounted on the mounting platform; the camera is opposite to the nozzle's ejection end.

[0008] The mounting platform is configured to form a first mounting surface, on which the nozzle is mounted.

[0009] The mounting platform forms a diffusion surface between the camera unit and the nozzle;

[0010] Along the fluid ejection direction of the nozzle, the size of the diffuser surface protruding from the first mounting surface gradually increases;

[0011] The highest point of the diffusion surface is lower than the surface of the camera unit that is away from the mounting platform.

[0012] The endoscope insertion structure of this application embodiment has a nozzle and a camera mounted on the mounting platform of its head assembly. The nozzle ejects fluid to rinse the camera. The nozzle is mounted on a first mounting surface formed by the mounting platform, and the camera is positioned opposite the ejection end of the nozzle. Along the fluid ejection direction from the nozzle, the size of the diffusion surface protruding from the first mounting surface gradually increases, forming an inclined diffusion structure. This diffuses the fluid ejected from the nozzle, increasing the impact area of ​​the fluid to cover the entire camera, keeping the surface of the camera facing away from the mounting platform clean, thereby forming a clear image.

[0013] In some embodiments of this application, a first flow guide is further configured on the mounting platform; the first flow guide is located on the side of the camera unit away from the nozzle along the fluid ejection direction of the nozzle; the first flow guide is recessed relative to the first mounting surface;

[0014] Along the fluid ejection direction of the nozzle, the depth of the recess in the first guide portion gradually increases.

[0015] In some embodiments of this application, the spacing of the first guide portion gradually increases along the first direction in the fluid ejection direction of the nozzle;

[0016] Wherein, the first direction is perpendicular to the extension direction of the first guide portion.

[0017] In some embodiments of this application, the diffusion surface extends circumferentially along the camera portion and surrounds a portion of the outer side of the camera portion;

[0018] The first guide section is located on the side of the camera section that does not enclose the diffusion surface.

[0019] In some embodiments of this application, the mounting platform is further configured with curved protruding ribs, the two ends of which extend to the edge of the mounting platform; the protruding ribs enclose a flow guiding area;

[0020] Both the camera unit and the first flow guide unit are disposed in the flow guide area;

[0021] The portion of the protruding rib located between the camera unit and the nozzle forms the diffusion surface.

[0022] In some embodiments of this application, the mounting platform forms protruding structures on both sides of the flow guiding area, and both the protruding structures and the nozzle protrude from the camera portion;

[0023] The two protruding structures and the nozzle are spaced apart around the center of the camera unit.

[0024] In some embodiments of this application, the guide region is configured to form a second mounting surface;

[0025] The head assembly further includes an illumination section, the illumination section including at least one first illumination element; the camera section and the at least one first illumination element are arranged on the second mounting surface.

[0026] In some embodiments of this application, the flow guiding region is further configured to form a second flow guiding portion, which is located on the side of the first illumination element away from the nozzle.

[0027] In some embodiments of this application, the first guide portion extends from the side of the first lighting element close to the side of the first lighting element away from the first guide portion to form the second guide portion.

[0028] In some embodiments of this application, the first guide portion is a curved surface recessed relative to the first mounting surface.

[0029] In some embodiments of this application, the mounting platform is further configured to form at least two protruding structures, both of which protrude from the camera portion;

[0030] At least two of the protruding structures and the nozzle are arranged at intervals around the center of the camera unit.

[0031] Secondly, embodiments of this application provide an endoscope, which includes: an endoscope insertion structure and an endoscope host as described in the first aspect, wherein a cable is provided inside the insertion tube of the endoscope insertion structure to enable the endoscope host to communicate with the camera unit inside the head assembly of the endoscope insertion structure.

[0032] The endoscope provided in the second aspect of this application, since it includes the endoscope insertion structure described in the first aspect, also has the same advantages as the endoscope insertion structure described in the first aspect. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0034] Figure 1 A schematic diagram of the head assembly of the endoscope insertion structure provided in an embodiment of this application;

[0035] Figure 2 A schematic diagram of the fluid flow direction of the head assembly of the endoscope insertion structure provided in the embodiments of this application;

[0036] Figure 3 A cross-sectional schematic diagram of the head assembly of the endoscope insertion structure provided in an embodiment of this application;

[0037] Figure 4This is a partial structural schematic diagram of an endoscope provided in an embodiment of this application;

[0038] Figure 5 This is a schematic diagram of the structure of an endoscope provided in an embodiment of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10: Head assembly; 20: Insertion tube; 30: Endoscope main unit; 40: Bending section; 50: Operating section;

[0041] 100: Mounting platform; 101: First mounting surface; 102: Diffuser surface; 103: Second mounting surface; 110: First guide section; 120: Protruding rib; 130: Guide area; 140: Raised structure; 150: Second guide section; 160: Auxiliary water inlet; 170: Instrument channel; 180: Seal;

[0042] 200: Nozzle; 210: Ejection end;

[0043] 300: Camera Department;

[0044] 400: Lighting unit; 410: First lighting element; 420: Second lighting element.

[0045] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0046] In related technologies, the insertion section of an endoscope is provided with a camera unit, an illumination window, and a nozzle at its front end. The illumination window provides light, and the camera unit is used to form an image. The nozzle is used to spray a cleaning fluid (such as water) and a gas (such as air) toward the surface of the camera unit to remove adhering substances such as bodily fluids, thereby enabling the camera unit to form a clear image.

[0047] During the cleaning of the camera unit, the nozzle first sprays cleaning fluid into the camera unit to wash away any adhering bodily fluids or other substances; then the nozzle sprays gas into the camera unit to remove any remaining cleaning fluid.

[0048] However, residues of deposits or cleaning fluid remaining on the surface of the camera unit can obstruct the camera's field of view, affecting image quality and consequently impacting the normal use of the endoscope.

[0049] Furthermore, in related technologies, during the transportation of the endoscope in the trial equipment, the tip of its insertion part is prone to collisions with hard surfaces such as the ground and workbench, which can damage the camera part and the lighting window, affecting the service life of the endoscope.

[0050] In view of this, embodiments of this application provide an endoscope insertion structure in which a nozzle and a camera are mounted on the mounting platform of the head assembly, with the nozzle's ejection end facing the camera. A diffusion surface is formed between the camera and the nozzle. Along the fluid flow direction from the nozzle, the size of the diffusion surface protruding from the nozzle's mounting surface gradually increases, thus diffusing the fluid ejected from the nozzle. This allows the fluid to be sprayed more evenly onto the camera, improving the cleaning effect of the fluid on the camera and consequently improving the image quality of the camera.

[0051] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0052] Combination Figures 1 to 4 This application provides an endoscope insertion structure, which includes an insertion tube 20, a head assembly 10, and a bending portion 40. The head assembly 10 is connected to the insertion tube 20 through the bending portion 40.

[0053] The head assembly 10 is located at the foremost end and typically houses the imaging components. The bending section 40 is bendable and deformable, and its bending angle can be controlled by an internal traction system, allowing the operator to flexibly adjust the observation direction during the inspection process.

[0054] The insertion tube 20 adapts well to the natural physiological curvature of the human body during insertion, making the insertion process smoother. In this embodiment, the insertion tube 20 may include a tube body and a cable disposed within the tube body. The tube body may be a flexible tube, which facilitates the insertion of the insertion tube 20 and the head assembly 10. The cable within the tube body can be used to connect electrical components within the head assembly 10, providing power to the electrical components within the head assembly 10 and transmitting data.

[0055] In this embodiment, the head assembly 10 includes a mounting platform 100, a nozzle 200, and a camera unit 300.

[0056] The camera unit 300 is used to generate images so that medical staff can observe the condition inside the body cavity.

[0057] Nozzle 200 is used to spray fluid to clean the camera unit 300, keeping it clean to ensure a clear image. The fluid can be a cleaning solution, a gas, or the like.

[0058] The surface of the camera unit 300 is lower than the highest point of the ejection end 210 of the nozzle 200, which facilitates the ejected fluid to be sprayed toward the camera unit 300.

[0059] A fluid pipe can also be installed inside the insertion tube 20, which is connected to the nozzle 200 to provide fluid to the nozzle 200.

[0060] Mounting platform 100 provides mounting positions for components on head assembly 10, such that nozzle 200 and camera unit 300 are both mounted on mounting platform 100. Mounting platform 100 is connected to the tube body of insertion tube 20.

[0061] In some embodiments, the mounting platform 100 has a circular cross-section, making its edges smooth and without sharp corners, which facilitates the insertion of the head assembly 10. The mounting platform 100 is formed by cutting it with a plane perpendicular to its thickness direction.

[0062] In some embodiments, the head assembly 10 may further include an illumination unit 400, which is mounted on the mounting platform 100 and provides a light source for the camera unit 300 to form an image.

[0063] Continue to refer to Figures 1 to 3 The camera unit 300 is opposite to the nozzle 200's ejection end 210. In this way, the nozzle 200 ejects fluid from the nozzle 200's ejection end 210, which is opposite to the camera unit 300, thereby removing impurities from the camera unit 300 and helping to maintain the cleanliness of the camera unit 300.

[0064] The mounting platform 100 is configured to form a first mounting surface 101, on which a nozzle 200 is mounted. Mounting the nozzle 200 on the first mounting surface 101 facilitates the installation and positioning of the nozzle 200.

[0065] In some embodiments, a diffusion surface 102 is formed on the mounting platform 100, and the diffusion surface 102 is located between the camera unit 300 and the nozzle 200. Specifically, the diffusion surface 102 is located between the camera unit 300 and the ejection end 210. In this way, the diffusion surface 102 can diffuse the fluid ejected from the ejection end 210 before spraying it toward the camera unit 300, which is beneficial for uniform and diffused fluid, thereby helping to improve the cleanliness of the ejected fluid in cleaning the camera unit 300.

[0066] In this embodiment, the size of the diffuser surface 102 protruding from the first mounting surface 101 gradually increases along the fluid ejection direction of the nozzle 200. Thus, the diffuser surface 102 protrudes upwards away from the first mounting surface 101, and the protrusion height of the diffuser surface 102 gradually increases along the fluid ejection direction, allowing the diffuser surface 102 to diffuse the fluid ejected from the nozzle 200, increasing the fluid coverage area. The fluid, after being diffused by the diffuser surface 102, can cover the camera unit 300, allowing the entire camera unit 300 to be impacted and cleaned by the fluid, reducing the possibility of the camera unit 300 being partially uncleaned.

[0067] Among them, Figure 2 In the process, the direction of fluid ejection from nozzle 200 is from ejection end 210 to the center of camera unit 300.

[0068] In this embodiment, the highest point of the diffusion surface 102 is lower than the surface of the camera unit 300 away from the mounting platform 100. This allows the fluid passing through the diffusion surface 102 to impact the end of the camera unit 300 near the diffusion surface 102, ensuring that the fluid impacts the entire camera unit 300 and avoiding the formation of a rinsing dead zone at the end of the camera unit 300 near the diffusion surface 102.

[0069] With the above configuration, the endoscope insertion structure of this embodiment has a nozzle 200 and a camera unit 300 mounted on the mounting platform 100 of the head assembly 10. The nozzle 200 ejects fluid from its ejection end 210 to rinse the camera unit 300. The nozzle 200 is mounted on a first mounting surface 101 formed by the mounting platform 100, and the camera unit 300 is opposite to the ejection end 210 of the nozzle 200. Along the fluid ejection direction of the nozzle 200, the size of the diffusion surface 102 protruding from the first mounting surface 101 gradually increases, forming an inclined diffusion structure that diffuses the fluid ejected from the nozzle 200, increasing the impact area of ​​the fluid to cover the entire camera unit 300. This ensures that the surface of the camera unit 300 facing away from the mounting platform 100 remains clean, thereby forming a clear image.

[0070] Continue to refer to Figures 1 to 3 In some embodiments of this application, a first guide section 110 is also formed on the mounting platform 100. The first guide section 110 guides the fluid after cleaning the camera unit 300, reducing the possibility of the fluid remaining on the camera unit 300.

[0071] The first guide section 110 is located on the side of the camera unit 300 away from the nozzle 200 along the fluid ejection direction of the nozzle 200. In this way, the ejection end 210 of the nozzle 200 ejects fluid, and the fluid is diffused through the diffusion surface 102 and impacts the camera unit 300. The fluid that cleans the camera unit 300 enters the first guide section 110 and flows out of the mounting platform 100 under the guidance of the first guide section 110, so as to avoid water droplets remaining on the camera unit 300.

[0072] In this embodiment, the first guide portion 110 is recessed relative to the first mounting surface 101, that is, the first guide portion 110 is lower than the first mounting surface 101. In this way, the fluid in the first guide portion 110 can be prevented from diffusing toward the first mounting surface 101, which helps to ensure the convergence of the fluid in the first guide portion 110.

[0073] In some embodiments, the first guide portion 110 may be an inclined plane recessed relative to the first mounting surface 101, which facilitates the shaping of the surface structure of the mounting platform 100.

[0074] In other embodiments, the first guide portion 110 can be a curved surface recessed relative to the first mounting surface 101, such as an arcuate surface. This avoids sharp angles at the connection points between the first guide portion 110 and other locations on the mounting platform 100, which could lead to impurity accumulation. It also allows the fluid to flow more smoothly from the first guide portion 110, reducing the impact of the fluid on the cavity being tested. In addition, the curved shape of the first guide portion 110 helps reduce the structural stress of the mounting platform 100, thereby improving the structural strength and stability of the mounting platform 100.

[0075] Continue to refer to Figure 1 In some embodiments of this application, the recess depth of the first guide portion 110 gradually increases along the fluid ejection direction of the nozzle 200. The recess depth of the first guide portion 110 is the dimension of the recess of the first guide portion 110 relative to the first mounting surface 101.

[0076] This configuration can improve the smoothness of fluid flow in the first guide section 110, allowing the fluid to flow out of the camera section 300 and out of the first guide section 110 quickly under the guidance of the first guide section 110, and also helps to reduce the backflow of fluid toward the camera section 300.

[0077] Combination Figure 1 and Figure 2 In some embodiments of this application, the spacing of the first guide portion 110 gradually increases along the fluid ejection direction of the nozzle 200 in a first direction; wherein, the first direction is perpendicular to the extension direction of the first guide portion 110.

[0078] exist Figure 2 In the figure, the fluid ejection direction of nozzle 200 is the X direction, which is also the extension direction of the first guide section 110. The first direction is the Y-axis direction in the figure.

[0079] With the above configuration, along the direction away from the camera unit 300, the spacing of the first guide section 110 near the camera unit 300 is smaller, which helps the fluid flowing through the camera unit 300 to converge to the first guide section 110; the spacing of the first guide section 110 near the edge of the mounting platform 100 is larger, which helps the fluid in the first guide section 110 to flow out quickly and reduces the residence time of the fluid in the first guide section 110.

[0080] In some embodiments of this application, combined with Figure 1 The diffusion surface 102 extends circumferentially along the camera unit 300 and surrounds part of the outer side of the camera unit 300.

[0081] The camera unit 300 generally has a circular appearance on the surface of the mounting platform 100. The diffuser 102 extends along the axial direction of the camera unit 300 and surrounds part of the outer side of the camera unit 300, making the diffuser 102 arc-shaped.

[0082] With the above configuration, the diffusion surface 102 has a certain length and surrounds part of the outer side of the camera unit 300. It can diffuse the fluid sprayed by the nozzle 200 to multiple positions around the camera unit 300, further disperse the fluid, increase the coverage area of ​​the fluid on the camera unit 300, and further improve the cleaning effect on the camera unit 300.

[0083] In this embodiment, the first guide section 110 is located on the side of the camera section 300 where the diffusion surface 102 is not enclosed. Thus, the fluid diffused through the diffusion surface 102 cleans the camera section 300 and converges on the side of the camera section 300 where the diffusion surface 102 is not enclosed, and flows out of the camera section 300 through the first guide section 110.

[0084] Continue to refer to Figure 1 In some embodiments, the mounting platform 100 is also constructed with curved protruding ribs 120, the two ends of which extend to the edge of the mounting platform 100; the protruding ribs 120 enclose a flow guiding area 130.

[0085] Both the camera unit 300 and the first flow guide unit 110 are located in the flow guide area 130.

[0086] The portion of the protruding rib 120 located between the camera section 300 and the nozzle 200 forms a diffusion surface 102.

[0087] The shape of the protruding rib 120 is not limited in this embodiment. It is understood that the extension direction of the protruding rib 120 should be gentle to facilitate the flow of liquid.

[0088] Both ends of the protruding rib 120 are located at the edge of the mounting platform 100, and the middle part of the protruding rib 120 protrudes towards the middle area of ​​the mounting platform 100 to enclose and form a flow guiding area 130 on the mounting platform 100.

[0089] In this embodiment, a curved protruding rib 120 is constructed on the mounting platform 100 to enclose a flow guiding area 130. This creates a clear boundary between the flow guiding area 130 on the mounting platform 100 and the mounting areas of other components such as the nozzle 200. The protruding rib 120 guides, restricts, and converges the liquid, achieving fluid discharge while reducing the impact of the fluid on other structures on the mounting platform 100. The protruding rib 120 not only restricts the fluid flow direction, preventing the fluid from escaping, but also increases the fluid velocity, improving the cleaning efficiency of the camera unit 300 and the removal of residual water.

[0090] Furthermore, by utilizing the protruding rib 120 portion between the camera unit 300 and the nozzle 200 to form a diffusion surface 102, it is not only beneficial to diffuse the fluid ejected from the ejection end 210 of the nozzle 200, but also eliminates the need for additional structures to form the diffusion surface 102, thus simplifying the structure of the mounting platform 100.

[0091] Continue to refer to Figure 1 In some embodiments of this application, at least two protruding structures 140 are also formed on the mounting platform 100, and both the protruding structures 140 and the nozzle 200 protrude from the camera part 300.

[0092] At least two protruding structures 140 and nozzles 200 are arranged at intervals around the center of the camera unit 300.

[0093] The shape of the protruding structure 140 is not limited in this application embodiment. It can be understood that the connection between the protruding structure 140 and its surrounding surface is a curved surface connection to avoid sharp corners.

[0094] For example, two protruding structures 140 are formed on the mounting platform 100, and these two protruding structures 140 are spaced apart from the nozzle 200 around the center of the camera unit 300.

[0095] The protruding structure 140 may be a protrusion formed on the mounting platform 100, which protrudes upward relative to the camera part 300.

[0096] exist Figure 1 In the illustration, two protrusions 140 are shown as an example, but this is not a limitation on the number of protrusions 140. For example, if there is sufficient space, there can be three, four, or other protrusions 140.

[0097] At least two protruding structures 140 and nozzle 200 form a triangular protective area protruding from the camera unit 300, and the camera unit 300 is located within this protective area, thereby protecting the camera unit 300 and reducing the possibility of impact damage to the lens.

[0098] In some embodiments, at least one protrusion 140 is formed on the first mounting surface 101, that is, at least one protrusion 140 is located outside the flow guiding region 130, so as to avoid the flow resistance of the fluid being affected by the protrusion structure in the flow guiding region 130.

[0099] In other embodiments, the mounting platform 100 forms protruding structures 140 on both sides of the flow guiding region 130. Thus, the two protruding structures 140 can form a triangular protective area protruding from the camera unit 300 with the nozzle 200, and also guide and restrict the fluid within the flow guiding region 130. Since the protruding structures 140 are located on both sides of the flow guiding region 130, their impact on the fluid flow within the flow guiding region 130 is small, or even negligible.

[0100] In some specific implementations, the two ends of the protruding rib 120 are constructed to form a protruding structure 140, which helps to simplify the structure of the mounting platform 100.

[0101] Continue to refer to Figures 1 to 3 In some embodiments of this application, the guide region 130 is configured to form a second mounting surface 103.

[0102] The head assembly 10 also includes an illumination unit 400, which includes at least one first illumination element 410; the camera unit 300 and the at least one first illumination element 410 are arranged on the second mounting surface 103.

[0103] The second mounting surface 103 can be flat, which facilitates the installation of the camera unit 300 and the first lighting element 410.

[0104] For example, the second mounting surface 103 can be an inclined plane. Along the fluid ejection direction of the nozzle 200, the second mounting surface 103 is inclined downward to facilitate the outflow of fluid.

[0105] exist Figure 1 and Figure 2 In the middle, a first lighting element 410 is arranged on the second mounting surface 103, but this is not a limitation on the number of first lighting elements 410. Two or three first lighting elements 410 can also be provided.

[0106] Along the fluid ejection direction of the nozzle 200, the first illumination element 410 can be located on the side of the camera unit 300 opposite to the nozzle 200. This arrangement can prevent the first illumination element 410 from affecting the cleaning effect of the camera unit 300.

[0107] The surfaces of the camera unit 300 and the first illumination element 410 can protrude from the first mounting surface 101, which helps to form a clear image.

[0108] In this embodiment, the flow guiding region 130 is constructed to form a second mounting surface 103, on which the first lighting element 410 and the camera unit 300 are mounted, making the installation of the camera unit 300 and the first lighting element 410 simpler. By providing the first lighting element 410 in the flow guiding region 130, the lighting effect of the head assembly 10 can be improved.

[0109] The first illumination element 410 and the camera unit 300 are located within the second mounting surface 103. The first illumination element 410 is also located within the triangular protection area formed by the two protruding structures 140 and the nozzle 200, which protects the first illumination element 410 and reduces the possibility of damage to it. Moreover, the first illumination element 410 is located within the flow guiding area 130 and is flushed by the fluid, which helps to provide clear illumination.

[0110] Combination Figure 1 and Figure 2 The lighting unit 400 may also include at least one second lighting element 420 disposed on the first mounting surface 101 to further improve the lighting effect of the endoscope insertion structure.

[0111] For example, two second illumination elements 420 and one first illumination element 410 are provided, with the two second illumination elements 420 and one first illumination element 410 spaced apart around the center of the imaging unit 300. The three illumination elements form a triangular illumination area, in which the imaging unit 300 is located, further improving the illumination effect on the endoscope insertion structure and helping to improve image resolution.

[0112] In some embodiments of this application, at least one of the first illuminator 410 and the second illuminator 420 is positioned below the camera unit 300. This arrangement helps to reduce stray light from the camera unit 300 and improve image clarity.

[0113] In some implementations of this application, the guide region 130 is further configured to form a second guide portion 150, which is located on the side of the first illumination element 410 away from the nozzle 200.

[0114] The second guide portion 150 is recessed relative to the second mounting surface 103, that is, the second guide portion 150 is lower than the second mounting surface 103. In this way, the fluid in the second guide portion 150 can be prevented from diffusing toward the second mounting surface 103, which helps to ensure the convergence of the fluid in the second guide portion 150.

[0115] In some embodiments, the second guide portion 150 may be an inclined plane recessed relative to the second mounting surface 103, which facilitates the shaping of the surface structure of the mounting platform 100.

[0116] In other embodiments, the second guide portion 150 may be a curved surface recessed relative to the second mounting surface 103.

[0117] In this embodiment, a second guide section 150 is provided on the side of the first lighting element 410 away from the nozzle 200 to guide the fluid flowing through the first lighting element 410, so that the fluid flows out of the mounting platform 100 quickly along the second guide section 150, reducing the possibility of residual water droplets on the first lighting element 410.

[0118] In some specific implementations, the first guide portion 110 extends from the side near the first illumination element 410 to the side of the first illumination element 410 away from the first guide portion 110, forming a second guide portion 150. Thus, the first guide portion 110 and the second guide portion 150 are connected as a single unit, separated from each other, forming an integrated guide structure on the side of the camera unit 300 and the first illumination element 410 away from the nozzle 200, which helps to increase the fluid outflow rate.

[0119] Continue to refer to Figure 1 and Figure 2 The first mounting surface 101 of the mounting platform 100 is also configured to form an auxiliary water inlet 160, which serves to assist in water delivery.

[0120] Reference Figure 3 A seal 180 is provided around the camera unit 300 to improve the sealing performance of the camera unit 300 during installation. The seal 180 may be a sealant formed between the camera unit 300 and the mounting platform 100.

[0121] Understandably, the portion of the seal 180 located between the diffuser surface 102 and the camera unit 300 smoothly connects the two, preventing abnormally protruding seals from affecting the fluid flushing of the camera unit 300.

[0122] Combination Figures 1 to 5 This application also provides an endoscope, comprising: an endoscope insertion structure and an endoscope host 30 as described in the above embodiments. A cable is provided within the insertion tube 20 of the endoscope insertion structure to enable communication between the endoscope host 30 and the camera unit 300 within the head assembly 10 of the endoscope insertion structure. Thus, the operator can obtain image information from the camera unit 300 through the endoscope host 30.

[0123] In some embodiments, the endoscope further includes an operating section 50, which is connected to the end of the insertion tube 20 opposite to the curved section 40. The operating section 50 is communicatively connected to the endoscope host 30, and can control the degree and direction of the bending of the curved section 40, and can control the medical device to enter the body cavity through the instrument channel 170, etc.

[0124] The endoscope provided in this application embodiment includes the endoscope insertion structure of the above embodiment, and therefore the endoscope provided in this application embodiment also has the same advantages as the endoscope insertion structure of the above embodiment.

[0125] In the above description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0126] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. An endoscope insertion structure, characterized in that, include: An insertion tube and a head assembly, wherein the insertion tube is connected to the head assembly; the head assembly includes a mounting platform, a nozzle, and a camera unit. Both the nozzle and the camera are mounted on the mounting platform; the camera is opposite to the nozzle's ejection end. The mounting platform is configured to form a first mounting surface, on which the nozzle is mounted. The mounting platform forms a diffusion surface between the camera unit and the nozzle; Along the fluid ejection direction of the nozzle, the size of the diffuser surface protruding from the first mounting surface gradually increases; The highest point of the diffusion surface is lower than the surface of the camera unit that is away from the mounting platform.

2. The endoscope insertion structure according to claim 1, characterized in that, The mounting platform is also configured to form a first flow guide; the first flow guide is located on the side of the camera unit away from the nozzle along the fluid ejection direction of the nozzle; the first flow guide is recessed relative to the first mounting surface. Along the fluid ejection direction of the nozzle, the depth of the recess in the first guide portion gradually increases.

3. The endoscope insertion structure according to claim 2, characterized in that, Along the fluid ejection direction of the nozzle, the spacing of the first guide portion gradually increases along the first direction; Wherein, the first direction is perpendicular to the extension direction of the first guide portion.

4. The endoscope insertion structure according to claim 2, characterized in that, The diffusion surface extends circumferentially along the camera unit and surrounds a portion of the outer side of the camera unit; The first guide section is located on the side of the camera section that does not enclose the diffusion surface.

5. The endoscope insertion structure according to any one of claims 2-4, characterized in that, The mounting platform is also constructed with curved protruding ribs, the two ends of which extend to the edge of the mounting platform; The protruding ribs enclose and form a flow guiding area; Both the camera unit and the first flow guide unit are disposed in the flow guide area; The portion of the protruding rib located between the camera unit and the nozzle forms the diffusion surface.

6. The endoscope insertion structure according to claim 5, characterized in that, The mounting platform forms protruding structures on both sides of the flow guiding area, and both the protruding structures and the nozzle protrude from the camera part; The two protruding structures and the nozzle are spaced apart around the center of the camera unit.

7. The endoscope insertion structure according to claim 5, characterized in that, The flow guiding area is configured to form a second mounting surface; The head assembly further includes an illumination section, the illumination section including at least one first illumination element; the camera section and the at least one first illumination element are arranged on the second mounting surface.

8. The endoscope insertion structure according to claim 7, characterized in that, The flow guiding area is further configured to form a second flow guiding section, which is located on the side of the first illumination element away from the nozzle.

9. The endoscope insertion structure according to claim 8, characterized in that, The first guide portion extends from the side of the first lighting element close to the side of the first lighting element away from the first guide portion, forming the second guide portion.

10. An endoscope, characterized in that, include: The endoscope insertion structure and endoscope host as described in any one of claims 1-9, wherein a cable is provided inside the insertion tube of the endoscope insertion structure to enable the endoscope host to communicate with the camera unit inside the head assembly of the endoscope insertion structure.

Images