Endoscope distal-end base, distal-end assembly, and endoscope

Abstract

Provided are an endoscope distal-end base (11), a distal-end assembly, and an endoscope. The distal-end base (11) is provided with a first mounting hole (111), a second mounting hole (112), a nozzle mounting hole (113), and a channel mounting hole (114). The center connection lines of the nozzle mounting hole (113), the first mounting hole (111), and the second mounting hole (112) define a triangle, and the center connection lines of the channel mounting hole (114), the first mounting hole (111), and the second mounting hole (112) define a triangle. Moreover, the nozzle mounting hole (113) is located on one side of the first mounting hole (111) and the second mounting hole (112), and the channel mounting hole (114) is located on the other side of the first mounting hole (111) and the second mounting hole (112). A nozzle (16) can simultaneously clean a first imaging assembly (13) and a second imaging assembly (14), thus eliminating the need for two nozzles (16) and facilitating reducing the outer diameter dimension of the distal-end base (11).

Description

Endoscope tip mount, tip assembly and endoscope Technical Field

[0001] This application relates to the technical field of endoscopes, specifically to an endoscope tip mount, tip assembly, and endoscope. Background Technology

[0002] An endoscope is a medical device consisting of a long, thin tube that enters the human body through a natural passage or surgical incision to deliver an imaging component. This allows for comprehensive examination and treatment of internal organs. The imaging component of the endoscope is mounted on a tip, which has nozzles. These nozzles spray water or air onto the outer surface of the imaging component's lens to flush away any adhering foreign matter. To facilitate rapid and accurate detection of abnormal lesions, two imaging components with different functions are typically mounted on the endoscope's tip. With two imaging components, two corresponding nozzles are usually required, one nozzle for cleaning one imaging component, thus increasing the outer diameter of the tip. Summary of the Invention

[0003] This application provides an endoscope tip mount, tip assembly, and endoscope, which can solve the problem of large outer diameter of the tip mount.

[0004] According to one aspect of this application, one embodiment provides an endoscope tip mount, the tip mount having a first mounting hole for mounting a first imaging component, a second mounting hole for mounting a second imaging component, a nozzle mounting hole for mounting a nozzle, and a channel mounting hole for mounting an instrument channel, the nozzle being used to clean the first imaging component and the second imaging component;

[0005] The first mounting hole and the second mounting hole are arranged adjacent to each other. The center line connecting the nozzle mounting hole, the first mounting hole, and the second mounting hole, as well as the center line connecting the channel mounting hole, the first mounting hole, and the second mounting hole, are all triangular. The nozzle mounting hole is located on one side of the first mounting hole and the second mounting hole, and the channel mounting hole is located on the other side of the first mounting hole and the second mounting hole. Both the nozzle mounting hole and the channel mounting hole are located between the first mounting hole and the second mounting hole.

[0006] According to another aspect of this application, one embodiment provides an endoscope tip assembly, including an endoscope tip mount as described above, a nozzle is installed in the nozzle mounting hole, a first imaging component is installed in the first mounting hole, a second imaging component is installed in the second mounting hole, and an instrument channel is installed in the channel mounting hole; the distal end of the nozzle is provided with a spray portion protruding from the distal end face of the tip mount, the spray portion is located between the first imaging component and the second imaging component, the spray portion has a spray nozzle, the spray area of ​​the spray nozzle at least covers the first imaging component and the second imaging component, and the spray area of ​​the spray nozzle is the area covered by the fluid sprayed from the spray nozzle.

[0007] According to another aspect of this application, one embodiment provides an endoscope including a water-air tube and an endoscope tip assembly as described above, the water-air tube being connected to the tip assembly for providing cleaning fluid to the nozzle.

[0008] According to the endoscope tip mount, tip assembly, and endoscope of the above embodiments, the nozzle mounting hole and the channel mounting hole are both located between the first mounting hole and the second mounting hole. This not only makes the structure compact, but also allows the nozzle in the nozzle mounting hole to clean the first imaging assembly and the second imaging assembly simultaneously after installation, eliminating the need for two nozzles. This helps to reduce the number of parts and the outer diameter of the tip mount. Attached Figure Description

[0009] Figure 1 is a schematic diagram of the structure of an endoscope tip mount in a first direction view according to an embodiment;

[0010] Figure 2 is a schematic diagram of the structure of an endoscope tip mount in a second direction view according to an embodiment;

[0011] Figure 3 is a schematic diagram of the structure of a third-direction view of an endoscope tip mount according to an embodiment;

[0012] Figure 4 is a schematic diagram of the structure of an endoscope tip assembly according to an embodiment;

[0013] Figure 5 is a cross-sectional structural diagram of the imaging component and the terminal block in one embodiment;

[0014] Figure 6 is a cross-sectional schematic diagram of the nozzle, instrument channel and end seat in one embodiment;

[0015] Figure 7 is a schematic diagram of a structure with a second connecting groove on the tip seat according to an embodiment;

[0016] Figure 8 is a schematic diagram of a structure in which the housings of the first imaging component and the second imaging component are integrated into one unit according to an embodiment;

[0017] Figure 9 is a schematic diagram of the structure of the spray area in one embodiment;

[0018] Figure 10 is a schematic diagram of the structure of the first injection port and the second injection port according to an embodiment;

[0019] Figure 11 is a schematic cross-sectional view of a nozzle including a tube body according to an embodiment;

[0020] Figure 12 is a schematic diagram of the structure of a nozzle including an extension according to an embodiment;

[0021] Figure 13 is a schematic diagram of another structure of the spray area in one embodiment;

[0022] Figure 14 is an exploded structural diagram of the front component portion of one embodiment;

[0023] Figure 15 is a cross-sectional structural diagram of the connection between the water pipe and the tip seat in one embodiment.

[0024] Figure 16 is a schematic cross-sectional view of another embodiment of the nozzle including the tube body;

[0025] Figure 17 is a schematic diagram of the structure of an endoscope according to an embodiment;

[0026] Explanation of reference numerals in the attached figures:

[0027] 11-Pinner seat; 111-First mounting hole; 112-Second mounting hole; 113-Nozzle mounting hole; 114-Channel mounting hole; 115-Water pipe mounting hole; 116-Hollow shaft section; 117-Fourth notch; 118-Fifth notch; 119-Second notch; 120-Third notch; 121-First notch; 122-First connecting groove; 123-Second connecting groove; 124-Groove; 125-Positioning step; 12-Instrument channel; 1 3-First imaging component; 14-Second imaging component; 15-Water supply pipe; 16-Nozzle; 161-Spray area; 162-First spray port; 163-Second spray port; 164-Pipe body; 165-Spray section; 1661-First spray channel; 1662-Second spray channel; 167-Limiting section; 168-Guide surface; 169-Extension section; 17-Proximal end; 18-Distal end; 19-Handle; 20-Insert tube; 21-Water vapor pipe. Detailed Implementation

[0028] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0029] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. The component designations used herein, such as "first" and "second," are merely for distinguishing the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages).

[0030] Please refer to Figures 1 to 8. This application provides an endoscope tip mount, which will be described in detail below.

[0031] In this embodiment, the terminal block 11 is provided with a first mounting hole 111 for mounting the first imaging component 13, a second mounting hole 112 for mounting the second imaging component 14, a nozzle mounting hole 113 for mounting the nozzle 16, and a channel mounting hole 114 for mounting the instrument channel 12. The nozzle 16 is used to clean foreign matter adhering to the outer surface of the lenses of the first imaging component 13 and the second imaging component 14. The first mounting hole 111 and the second mounting hole 112 are arranged adjacent to each other. The center line connecting the nozzle mounting hole 113, the first mounting hole 111, and the second mounting hole 112, and the center line connecting the channel mounting hole 114, the first mounting hole 111, and the second mounting hole 112 are all triangular. The nozzle mounting hole 113 is located on one side of the first mounting hole 111 and the second mounting hole 112, and the channel mounting hole 114 is located on the other side of the first mounting hole 111 and the second mounting hole 112. The nozzle mounting hole 113 and the channel mounting hole 114 are both located between the first mounting hole 111 and the second mounting hole 112. It is understood that in this embodiment, the nozzle mounting hole 113 is located between the first mounting hole 111 and the second mounting hole 112, that is, the vertical projection of the center of the nozzle mounting hole 113 onto the straight line passing through the centers of the first mounting hole 111 and the second mounting hole 112 is located between the first mounting hole 111 and the second mounting hole 112. Similarly, in this embodiment, the channel mounting hole 114 is located between the first mounting hole 111 and the second mounting hole 112, that is, the vertical projection of the center of the channel mounting hole 114 onto the straight line passing through the centers of the first mounting hole 111 and the second mounting hole 112 is located between the first mounting hole 111 and the second mounting hole 112.

[0032] It is understood that the tip seat 11 in this embodiment can be made of metal or plastic. The tip seat 11 in this embodiment can be a one-piece structure or it can be assembled from components. The shapes of the first mounting hole 111 and the second mounting hole 112 in this embodiment match the outer contour shape of the corresponding imaging component. For example, when the outer contour of the imaging component is circular, the corresponding mounting hole can also be a circular hole. The shape of the nozzle mounting hole 113 in this embodiment can also match the outer contour shape of the nozzle 16, and the shape of the channel mounting hole 114 can also match the outer contour shape of the instrument channel 12. In this embodiment, the nozzle mounting hole 113 is located between the first mounting hole 111 and the second mounting hole 112, allowing the nozzle 16 to simultaneously clean the outer surfaces of the lenses of both the first imaging assembly 13 and the second imaging assembly 14. This helps reduce the number of components and the outer diameter of the end-mount. Furthermore, the nozzle mounting hole 113 is close to both the first and second mounting holes 111 and 112, ensuring that the liquid or gas sprayed by the nozzle 16 onto the outer surfaces of the lenses of both the first and second imaging assemblies has sufficient pressure, resulting in good cleaning of the lenses of both assemblies. In this embodiment, the channel mounting hole 114 is also located between the first and second mounting holes 111 and 112, creating a compact quadrilateral arrangement of the channel mounting hole 114, nozzle mounting hole 113, first mounting hole 111, and second mounting hole 112, further reducing the outer diameter of the end-mount. In some applications, when the endoscope is used for examination, the instrument channel 12 may not be provided, and the terminal block 11 may not have a channel mounting hole 114. When the endoscope is used for treatment, the instrument channel 12 allows the treatment instruments to pass through, in which case the terminal block 11 may have a channel mounting hole 114. When the terminal block 11 does not have a channel mounting hole 114, the first mounting hole 111, the second mounting hole 112, and the nozzle mounting hole 113 are still arranged in a triangular shape, and the first mounting hole 111, the second mounting hole 112, and the nozzle mounting hole 113 may be arranged around the center of the terminal block 11.

[0033] In one embodiment, as shown in FIG1, the line connecting the center of the first mounting hole 111 and the center of the second mounting hole 112 is the first line segment L1, and the line connecting the midpoint of the first line segment L1 and the center of the nozzle mounting hole 113 is the second line segment L2. The first line segment L1 and the second line segment L2 are perpendicular. At this time, the nozzle mounting hole 113, the first mounting hole 111, and the second mounting hole 112 are arranged in the most compact isosceles triangle, which can further reduce the outer diameter of the tip seat and avoid the situation that the tip seat cannot pass through the natural cavity of the human body to reach the required specific part due to the large outer diameter of the tip seat, or cause obvious discomfort to the patient. Moreover, the distance from the center of the nozzle mounting hole 113 to the center of the first mounting hole 111 is equal to the distance from the center of the nozzle mounting hole 113 to the center of the second mounting hole 112, so that the pressure of the liquid or gas sprayed by the nozzle 16 onto the outer surface of the lens of the first imaging component 13 and the second imaging component 14 is consistent, and the nozzle 16 has a sufficiently good cleaning effect on the lens of the first imaging component 13 and the second imaging component 14. In this embodiment, when the first line segment L1 and the second line segment L2 are almost perpendicular, it is equivalent to the first line segment L1 and the second line segment L2 being perpendicular. In some application scenarios, the first line segment L1 and the second line segment L2 may not be perpendicular, as long as the nozzle mounting hole 113 is located between the first mounting hole 111 and the second mounting hole 112.

[0034] In one embodiment, the line connecting the midpoint of the first line segment L1 and the center of the channel mounting hole 114 is the third line segment L3, and the first line segment L1 is perpendicular to the third line segment L3. The third line segment L3 can also be perpendicular to the first line segment L1, in which case the channel mounting hole 114, the first mounting hole 111, and the second mounting hole 112 also form a compact isosceles triangle, resulting in a smaller outer diameter of the endcap. In some applications, the third line segment L3 may not be perpendicular to the first line segment L1; this can be set as needed.

[0035] In one embodiment, as shown in Figures 2 and 3, the tip base 11 is provided with a first connecting groove 122. The opening of the first connecting groove 122 faces the proximal end 17 of the tip base 11. The tip base 11 is provided with the first connecting groove 122, and the first mounting hole 111 and the second mounting hole 112 extend from the bottom of the first connecting groove 122 to the distal end 18 of the tip base 11. The first connecting groove 122 allows the proximal end 17 near the first mounting hole 111 and the second mounting hole 112 to be connected. The first connecting groove 122 can correspond to the wider parts of the two imaging components. After installation, the two imaging components can be arranged close together in the first connecting groove 122, which is beneficial to reducing the outer diameter of the tip base.

[0036] In one embodiment, the wall of the first connecting groove 122 is provided with a first notch 121 communicating with the nozzle mounting hole 113. By setting the first notch 121, the nozzle 16 can be set as close as possible to the axis of the tip seat 11, which is also beneficial to reducing the outer diameter of the tip seat. In another embodiment, the wall of the first connecting groove 122 is also provided with a second notch 119 communicating with the channel mounting hole 114. By setting the second notch 119, the instrument channel 12 can also be set as close as possible to the axis of the tip seat 11, which is also beneficial to reducing the outer diameter of the tip seat.

[0037] In one embodiment, the tip seat 11 further includes a water pipe mounting hole 115 for mounting a water supply pipe 15, which is provided through the tip seat 11. The water pipe mounting hole 115 and the channel mounting hole 114 are located on the same side of the first mounting hole 111 and the second mounting hole 112. Because the size of the instrument channel is relatively large, the distance between the channel mounting hole 114 and the two mounting holes is greater than the distance between the nozzle mounting hole and the two mounting holes. This results in a relatively large amount of unused space around the channel mounting hole 115. When the water pipe mounting hole 115 and the channel mounting hole 114 are located on the same side, the water pipe mounting hole 115 can be arranged in this unused space without needing to increase the size of the tip seat to design the water pipe mounting hole 115. The space on the tip seat is utilized more fully, which is beneficial for reducing the outer diameter of the tip seat.

[0038] In one embodiment, the wall of the first connecting groove 122 is further provided with a third notch 120 communicating with the water pipe mounting hole 115. The third notch 120 allows the water supply pipe 15 to be positioned as close as possible to the axis of the tip seat 11, which also helps to reduce the outer diameter of the tip seat. In this embodiment, the water supply pipe 15 can be used to rinse the target area within the body to ensure that the imaging area of ​​the imaging component is not obstructed. In some applications, the water supply pipe 15 can provide the water required for cleaning the nozzle 16, or the water and air required for cleaning the nozzle 16 can be supplied separately by another delivery pipe.

[0039] In one embodiment, the water pipe mounting hole 115 and the channel mounting hole 114 are both stepped holes. The large-diameter holes of the water pipe mounting hole 115 and the channel mounting hole 114 are close to the proximal end 17 of the tip seat 11. The wall of the first connecting groove 122 is provided with a second notch 119 that communicates with the channel mounting hole 114. The second notch 119 connects the large-diameter hole of the channel mounting hole 114 with the first connecting groove 122. The third notch 120 connects the large-diameter hole of the water pipe mounting hole 115 with the first connecting groove 122. The step between the large-diameter hole and the small-diameter hole of the water pipe mounting hole 115 is the first step, and the step between the large-diameter hole and the small-diameter hole of the channel mounting hole 114 is the second step. The first step and the second step are located on the far end 18 side of the bottom of the first connecting groove 122. The first step abuts against the end of the water supply pipe 15, and the large-diameter hole of the water pipe mounting hole 115 can be bonded and fixed to the outer peripheral sidewall of the water supply pipe 15. The second step abuts against the end of the instrument channel 12, and the large-diameter hole of the channel mounting hole 114 can be bonded and fixed to the outer peripheral sidewall of the instrument channel 12. The first step is located on the far end 18 side of the bottom of the first connecting groove 122, which allows the far end 18 of the large-diameter hole of the water pipe mounting hole 115 to have a completely enclosed hole wall, and the airtightness of the bonding and fixing of the outer peripheral sidewall of the water supply pipe 15 to this part of the hole wall is good. The second step is located on the far end 18 side of the bottom of the first connecting groove 122, which allows the far end 18 of the large-diameter hole of the channel mounting hole 114 to also have a completely enclosed hole wall, and the airtightness of the bonding and fixing of the outer peripheral sidewall of the instrument channel 12 to this part of the hole wall is also good, ensuring good airtightness of the tip after installation. In this embodiment, the small diameter holes of the water pipe mounting hole 115 and the small diameter holes of the channel mounting hole 114 are located near the far end 18 of the tip seat 11 and are used to supply water in the water pipe 15 and allow instruments in the instrument channel 12 to pass through.

[0040] In one embodiment, the proximal end 17 of the tip seat 11 is provided with a hollow shaft section 116 for connecting the curved portion of the endoscope. The side wall of the water pipe mounting hole 115 is provided with a fourth notch 117, and the side wall of the channel mounting hole 114 is provided with a fifth notch 118. Both the fourth notch 117 and the fifth notch 118 extend to the inner side wall of the hollow shaft section 116. In this embodiment, the curved portion is bent by axially pulling the traction steel wire rope, causing the adjacent curved sections of the curved portion to rotate relative to each other. The distal end 18 of the curved portion is connected to the hollow shaft section 116 of the tip seat 11, and the proximal end 17 of the curved portion is connected to the insertion tube. Because the fourth notch 117 and the fifth notch 118 penetrate to the inner wall of the hollow shaft section 116, when the tip seat 11 is connected to the curved part, the end of the curved part can extend into the hollow shaft section 116, and the curved part can squeeze the instrument channel 12 and the water supply pipe 15 towards the axis of the tip seat 11. The instrument channel 12 and the water supply pipe 15 have space for deformation and displacement. Under the premise of ensuring smooth flow, the curved part can be connected with a smaller outer diameter of the tip seat 11.

[0041] In one embodiment, as shown in Figures 7 and 8, the front end seat 11 is further provided with a second connecting groove 123. The second connecting groove 123 is located between the first mounting hole 111 and the second mounting hole 112. The second connecting groove 123 forms a notch on the hole wall of the first mounting hole 111 and the second mounting hole 112, connecting the first mounting hole 111 and the second mounting hole 112. Through the second connecting groove 123, the first imaging component 13 and the second imaging component 14 can be pre-connected as an integral structure, and then installed in the first mounting hole 111 and the second mounting hole 112 at once. The second connecting groove 123 provides clearance for the connection part between the first imaging component 13 and the second imaging component 14. In one embodiment, the housing of the first imaging component 13 and the second imaging component 14 can be an integral structure. In this case, the integration of the front end components is higher, and the assembly is simplified. In some embodiments, the second connecting groove 123 can extend along the axial direction of the front end seat 11 to the bottom of the first connecting groove 122, so that the second connecting groove 123 communicates with the first connecting groove 122. In some application scenarios, the second connecting groove 123 may not be provided between the first mounting hole 111 and the second mounting hole 112.

[0042] In one embodiment, as shown in FIG14, the distal end 18 of the front end seat 11 is provided with a groove 124, which extends from the nozzle mounting hole 113 to the space between the first mounting hole 111 and the second mounting hole 112. An extension 169 corresponding to the groove 124 can be provided on the nozzle 16. The groove 124 forms a receiving space for accommodating the extension 169. The spray nozzle of the nozzle 16 can be disposed on the extension 169, thereby making the spray nozzle closer to the imaging component, reducing the pressure attenuation of the water or air flow sprayed by the nozzle 16, and improving the cleaning effect on the outer surface of the lens of the imaging component.

[0043] In the endoscope tip mount of the above embodiment, the nozzle mounting hole 113 is located between the first mounting hole 111 and the second mounting hole 112, allowing the nozzle 16 to simultaneously clean the outer surfaces of the lenses of the first imaging assembly 13 and the second imaging assembly 14. This helps reduce the number of components and the outer diameter of the tip mount. Furthermore, the nozzle mounting hole 113 is close to both the first and second mounting holes 111 and 112, ensuring that the liquid or gas sprayed by the nozzle 16 onto the outer surfaces of the lenses of the first and second imaging assemblies 13 and 14 has sufficient pressure, resulting in good cleaning of the lenses of both components. In this embodiment, the channel mounting hole 114 is also located between the first and second mounting holes 111 and 112, creating a compact quadrilateral arrangement of the channel mounting hole 114, nozzle mounting hole 113, first mounting hole 111, and second mounting hole 112, further reducing the outer diameter of the tip mount.

[0044] Please refer to Figures 1-16. This application embodiment also provides an endoscope tip assembly, including the endoscope tip seat as described above, as well as the tip seat 11, nozzle 16, first imaging assembly 13, second imaging assembly 14, instrument channel 12, and other functional components as needed, which are described in detail below.

[0045] In this embodiment, the tip seat 11 is the same as in the above embodiment. The nozzle 16 is installed in the nozzle mounting hole 113 of the tip seat 11, the first imaging component 13 is installed in the first mounting hole 111, the second imaging component 14 is installed in the second mounting hole 112, and the instrument channel 12 is installed in the channel mounting hole 114. The distal end of the nozzle 16 is provided with a spray portion 165 protruding from the distal end face of the tip seat 11. The spray portion 165 has a spray nozzle, and the spray area 161 of the spray nozzle at least covers the first imaging component 13 and the second imaging component 14. The spray area 161 of the spray nozzle is the area covered by the fluid sprayed from the spray nozzle.

[0046] In this embodiment, the spraying portion 165 of the nozzle 16 is located between the first imaging component 13 and the second imaging component 14, making the distance between the spraying port and both the first and second imaging components 13 and 14 relatively small. This ensures that the water or airflow sprayed onto the outer surface of the lenses of the first and second imaging components 13 and 14 has sufficient pressure, resulting in good lens cleaning effect of the nozzle 16 on both components. In this embodiment, the spraying area 161 of the spraying port covers both the first and second imaging components 13 and 14, allowing the nozzle 16 to clean both components simultaneously. This eliminates the need for two nozzles 16, reducing the number of components and the outer diameter of the tip seat 11.

[0047] This embodiment does not limit the specific connection method between the first imaging component 13, the second imaging component 14, and the tip seat 11; they can be connected by means of bonding, but are not limited to adhesive bonding. In this embodiment, the spray section 165 protrudes from the distal end face of the tip seat 11, which facilitates the cleaning of the lens outer surface of the imaging component by the nozzle 16. In this embodiment, the first imaging component 13 and the second imaging component 14 can have different functions; for example, one can be used for imaging under normal light and the other for imaging under special light, or one can be used for imaging at normal magnification and the other for imaging at magnification.

[0048] In one embodiment, as shown in Figures 10-13, the spray section 165 is provided with a first spray port 162 and a second spray port 163. The spray area 161 of the first spray port 162 at least covers the first imaging component 13, and the spray area 161 of the second spray port 163 at least covers the second imaging component 14. When one spray port corresponds to cleaning one imaging component, the water or air flow ejected from the spray port can have a larger pressure, resulting in a better cleaning effect on the imaging component. The width of the outer sides of the first spray port 162 and the second spray port 163 determines the spray area 161 of the first spray port 162. In this embodiment, the width of the outer sides of the first spray port 162 and the second spray port 163 can make the spray area 161 just cover the imaging component, or it can make the spray area 161 cover the imaging component and the outer part of the imaging component. In some application scenarios, in order to form a better area definition, the two opposite sidewalls of the first spray port 162 and the two opposite sidewalls of the second spray port 163 can both be set as outwardly inclined slopes. As shown in Figure 9, the spray section 165 may also be provided with only one spray port, the width of which is large enough that its spray area 161 can simultaneously cover the first and second imaging components.

[0049] In one embodiment, as shown in FIG11, the nozzle 16 includes a tube 164, which is inserted into the nozzle mounting hole 113 and fixedly connected to the tip seat 11. A spray section 165 is located at the distal end of the tube 164, and the proximal end of the tube 164 is used to connect to the water / air pipe 21. The spray section 165 has a first spray channel 1661 that is perpendicular to and communicates with the inner hole of the tube 164. A first spray port 162 and a second spray port 163 are provided on the side wall of the spray section 165 near the imaging component, and both the first spray port 162 and the second spray port 163 communicate with the first spray channel 1661. When the first spray port 162 and the second spray port 163 are located on the same side of the spray section 165, the pressure attenuation of the water or air flow ejected from the spray port is smaller, resulting in a better spray cleaning effect of the nozzle 16. When installing the nozzle 16, the outer periphery of the tube 164 can be bonded to the wall of the nozzle mounting hole 113, resulting in better airtightness of the connection. In this embodiment, the proximal end is the end closer to the endoscope handle, and the distal end is the end farther from the handle. The first injection channel 1661 is perpendicular to the inner hole of the tube body 164, meaning that the axis of the first injection channel 1661 is perpendicular to the axis of the inner hole of the tube body 164, or the first injection channel 1661 can be approximately perpendicular to the inner hole of the tube body 164, where approximately perpendicular is an equivalent substitution for perpendicular.

[0050] In one embodiment, as shown in Figure 11, the nozzle 16 is provided with a guide surface 168. The guide surface 168 is located at the connection between the first injection channel 1661 and the inner hole of the pipe body 164, and is used to guide the fluid from the inner hole of the pipe body 164 to the first injection channel 1661. The guide surface 168 is an inclined surface or an arc-shaped surface. Through the guidance of the guide surface 168, the fluid can be redirected more smoothly, reducing the decrease in flow velocity caused by the redirection, which is beneficial to improving the spraying effect of the nozzle 16. In some embodiments, an inclined transition section may also be provided between the first injection channel 1661 and the inner hole of the pipe body 164.

[0051] In one embodiment, as shown in FIG11, the tube body 164 and the spraying part 165 are integral structures. The outer wall of the tube body 164 is provided with a protruding limiting part 167, and the wall of the nozzle mounting hole 113 is provided with a limiting step. The limiting part 167 and the limiting step cooperate to form an axial limiting of the nozzle 16. The tube body 164 and the spraying part 165 can be an integral structure formed by injection molding. The integral structure has higher processing efficiency and better airtightness, which can avoid leakage of high-pressure liquid or gas, and can also avoid the situation where liquid leakage to live parts such as imaging components and lighting components can cause short circuits and safety risks. In this embodiment, the limiting part 167 and the limiting step cooperate to form an axial limiting of the nozzle 16, so that the protrusion height of the spraying part 165 is more precise, avoiding the situation where water or air flow cannot be smoothly sprayed to the outer surface of the lens of the imaging component due to the spraying nozzle being too high or too low. In this embodiment, the specific shape of the limiting part 167 is not limited. It can protrude from the outer wall of the tube body 164. For example, it can be a protruding square or an annular flange structure.

[0052] In one embodiment, as shown in Figures 12-15, the nozzle 16 has an extension 169 extending between the first mounting hole 111 and the second mounting hole 112. A spraying portion 165 is disposed on the extension 169, and a first spray port 162 and a second spray port 163 are located on the sidewalls of opposite sides of the spraying portion 165. The first spray port 162 and the second spray port 163 being disposed on the extension 169 further reduces the distance between the first spray port 162 and the first imaging component 13, and the distance between the second spray port 163 and the second imaging component 14. This allows for sufficiently high pressure on the outer surface of the lens of the imaging component from the spraying ports, which is beneficial for improving the cleaning effect of the nozzle 16. In this embodiment, the width of the extension 169 can be equal to or smaller than the distance between the two imaging components. In some embodiments, the width of the portion of the extension 169 located between the two imaging components may be set to be narrower, while the width of the remaining portions may be set to be wider. This allows the fluid to flow from the wider portion to the narrower portion, thereby increasing the fluid pressure and improving the cleaning effect. Furthermore, when the width of the portion between the two imaging components is set to be narrower, it also helps to reduce the distance between the two imaging components and thus reduce the outer diameter of the tip seat 11.

[0053] In one embodiment, as shown in Figures 14 and 15, the distal end face of the tip seat 11 is provided with a groove 124. The groove 124 extends from the nozzle mounting hole 113 to the space between the first mounting hole 111 and the second mounting hole 112. The extension portion 169 is fitted in the groove 124. The nozzle 16 is provided with a second spray channel 1662 perpendicular to the axis of the nozzle mounting hole 113. The spray portion 165 has a hollow structure. The second spray channel 1662 communicates with the first spray port 162 and the second spray port 163 through the hollow structure. The extension portion 169 is located in the groove 124, which can avoid the lighting effect or possible patient discomfort caused by an excessively large protruding structure. In this embodiment, the distal end face of the extension portion 169 can be flush with the distal end face of the tip seat 11. In some embodiments, the distal end face of the extension portion 169 can also be higher or lower than the distal end face of the tip seat 11. In this embodiment, the second injection channel 1662 is perpendicular to the inner hole of the tube body 164, meaning the axis of the second injection channel 1662 is perpendicular to the axis of the inner hole of the tube body 164. In some embodiments, the second injection channel 1662 may be approximately perpendicular to the inner hole of the tube body 164, which is an equivalent replacement for the second injection channel 1662 being perpendicular to the inner hole of the tube body 164. In some application scenarios, as shown in FIG16, the groove 124 may not be provided on the distal end face of the tip seat 11, allowing the extension 169 to extend close to the distal end face of the tip seat 11.

[0054] In one embodiment, the lead seat 11 is provided with a positioning step 125. A portion of the positioning step 125 is located on the wall of the nozzle mounting hole 113, and another portion is located on the wall of the groove 124. The proximal end face of the nozzle 16 is fixedly connected to the positioning step 125. The second injection channel 1662 communicates with the nozzle mounting hole 113, and the proximal end of the nozzle mounting hole 113 is used to communicate with the water / air pipe 21. The nozzle 16 is fitted in the nozzle mounting hole 113 and the groove 124. During fixation, the proximal end face of the nozzle 16 can be fixedly connected to the positioning step 125 by means of, but not limited to, adhesive bonding. Alternatively, the side wall of the nozzle 16 can be connected and fixed to the wall of the nozzle mounting hole 113 and the wall of the groove 124. The positioning step 125 can also provide axial limitation for the nozzle 16, which is beneficial to improving the fixing effect of the nozzle 16. Nozzle 16 is connected to water-air pipe 21 through nozzle mounting hole 113, meaning there is no direct connection between water-air pipe 21 and nozzle 16. During installation, water-air pipe 21 is inserted and fixed to the proximal end of nozzle mounting hole 113 from the proximal end of tip seat 11, and nozzle 16 is inserted and fixed to the distal end of nozzle mounting hole 113 from the distal end of tip seat 11. As shown in Figure 16, when nozzle 16 includes tube body 164, extension 169 can also be formed by directly extending the spray portion 165 protruding from the end face of tip seat 11 to the space between the two imaging components.

[0055] In one embodiment, the first end seat 11 is provided with a second connecting groove 123, which is located between the first mounting hole 111 and the second mounting hole 112. When the distal end face of the first end seat 11 is provided with a groove 124, a portion of the second connecting groove 123 can be a portion of the structure of the groove 124. That is, the first and second mounting holes are also connected to the groove 124. In addition, an avoidance groove can be provided on the connection structure between the first imaging component 13 and the second imaging component 14 so that the extension 169 can extend to the space between the two imaging components. In this case, the avoidance groove on the connection structure can be a portion of the structure of the groove 124.

[0056] In one embodiment, the instrument channel 12 for the instrument to pass through the body is installed in the channel mounting hole of the tip seat 11. The instrument channel 12 is also located between the first imaging component 13 and the second imaging component 14. The instrument channel 12, the first imaging component 13, and the second imaging component 14 are also arranged in a compact triangle, reducing the outer diameter of the tip seat. The tip component in this embodiment may also include a water supply pipe 15. The water supply pipe 15 and the water-air pipe 21 may be two different channels. The water in the water supply pipe 15 can be used to clean human tissue. The water supply pipe 15 is installed in the water pipe mounting hole 115. The specific arrangement between the instrument channel 12 and the channel mounting hole 114, and between the water supply pipe 15 and the water pipe mounting hole 115 in this embodiment is the same as in the above embodiment, and will not be repeated here. In some application scenarios, when the endoscope is an examination endoscope, the endoscope may not have an instrument channel 12, and the tip seat 11 may not have a channel mounting hole 114.

[0057] In the endoscope tip assembly of the above embodiment, the nozzle mounting hole 113 and the channel mounting hole 114 are located between the first mounting hole 111 and the second mounting hole 112. The nozzle 16 and the instrument channel 12 are both located between the first imaging component 13 and the second imaging component 14. The spray area 161 of the nozzle 16 covers the first imaging component 13 and the second imaging component 14, so that the nozzle 16 can clean the first imaging component 13 and the second imaging component 14 at the same time. There is no need to set two nozzles 16, which is beneficial to reduce the number of parts and reduce the outer diameter of the tip seat 11. Moreover, the nozzle 16 and the instrument channel 12 are located between the two imaging components, which not only makes the structure compact, but also makes the nozzle 16 effective in cleaning the two imaging components.

[0058] Please refer to Figures 1 to 17. This application embodiment also provides an endoscope, including a water-air tube 21 and the tip assembly as described above. The water-air tube 21 is connected to the tip assembly and is used to provide cleaning fluid to the nozzle 16.

[0059] The tip component in this embodiment is the same as in the previous embodiment, and will not be described again here. The endoscope in this embodiment may also include other functional structures or components, such as an insertion tube 20, a curved tube, and a handle 19. The handle 19 is connected to the proximal end of the insertion tube 20, the curved tube is connected to the distal end of the insertion tube 20, and the tip seat 11 is fixed to the distal end of the curved tube. The handle 19 is the control end, which can control the bending shape of the curved tube to adjust the visible area of ​​the imaging component within the body, facilitating surgery or examination. The distal end is the end furthest from the endoscope handle, and the proximal end is the end closest to the handle.

[0060] The endoscope in the above embodiment includes an end-mount assembly. In the end-mount assembly, the nozzle mounting hole 113 and the channel mounting hole 114 are located between the first mounting hole 111 and the second mounting hole 112. The spray area 161 of the nozzle 16 covers the first imaging component 13 and the second imaging component 14, so that the nozzle 16 can clean the first imaging component 13 and the second imaging component 14 at the same time. There is no need to set two nozzles 16, which helps to reduce the number of parts and reduce the outer diameter of the end-mount 11. Moreover, the nozzle 16 and the instrument channel 12 are located between the two imaging components, which not only makes the structure compact, but also makes the cleaning effect of the nozzle 16 on the two imaging components good.

[0061] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. An endoscope tip mount, characterized in that, The terminal block is provided with a first mounting hole for mounting a first imaging component, a second mounting hole for mounting a second imaging component, a nozzle mounting hole for mounting a nozzle, and a channel mounting hole for mounting an instrument channel. The nozzle is used to clean the first imaging component and the second imaging component. The first mounting hole and the second mounting hole are arranged adjacent to each other. The center line connecting the nozzle mounting hole, the first mounting hole, and the second mounting hole, as well as the center line connecting the channel mounting hole, the first mounting hole, and the second mounting hole, are all triangular. The nozzle mounting hole is located on one side of the first mounting hole and the second mounting hole, and the channel mounting hole is located on the other side of the first mounting hole and the second mounting hole. Both the nozzle mounting hole and the channel mounting hole are located between the first mounting hole and the second mounting hole.

2. The endoscope tip mount as described in claim 1, characterized in that, The line connecting the center of the first mounting hole and the center of the second mounting hole is a first line segment, and the line connecting the midpoint of the first line segment and the center of the nozzle mounting hole is a second line segment. The first line segment is perpendicular to the second line segment.

3. The endoscope tip mount as described in claim 1, characterized in that, The line connecting the center of the first mounting hole and the center of the second mounting hole is a first line segment, and the line connecting the midpoint of the first line segment and the center of the channel mounting hole is a third line segment. The first line segment and the third line segment are perpendicular.

4. The endoscope tip mount as described in any one of claims 1-3, characterized in that, The tip seat is provided with a first connecting groove, the opening of the first connecting groove facing the proximal end of the tip seat, and the first mounting hole and the second mounting hole extending from the bottom of the first connecting groove to the distal end of the tip seat.

5. The endoscope tip mount as described in claim 4, characterized in that, The first connecting groove has a first notch that communicates with the nozzle mounting hole, and / or the first connecting groove has a second notch that communicates with the channel mounting hole.

6. The endoscope tip mount as described in claim 5, characterized in that, The tip seat also includes a water pipe mounting hole through which a water supply pipe is installed. The water pipe mounting hole and the channel mounting hole are located on the same side as the first mounting hole and the second mounting hole. The wall of the first connecting groove is also provided with a third notch that communicates with the water pipe mounting hole.

7. The endoscope tip mount as described in claim 6, characterized in that, Both the water pipe mounting hole and the channel mounting hole are stepped holes. The large-diameter holes of the water pipe mounting hole and the channel mounting hole are close to the proximal end of the tip seat. The wall of the first connecting groove is provided with a second notch that communicates with the channel mounting hole. The second notch connects the large-diameter hole of the channel mounting hole with the first connecting groove. The third notch connects the large-diameter hole of the water pipe mounting hole with the first connecting groove. The step between the large-diameter hole and the small-diameter hole of the water pipe mounting hole is a first step. The step between the large-diameter hole and the small-diameter hole of the channel mounting hole is a second step. The first step and the second step are located on the far end side of the bottom of the first connecting groove.

8. The endoscope tip mount as described in claim 6, characterized in that, The proximal end of the tip seat is provided with a hollow shaft section for connecting the curved part of the endoscope. The side wall of the water pipe mounting hole is provided with a fourth notch, and the side wall of the channel mounting hole is provided with a fifth notch. Both the fourth notch and the fifth notch penetrate to the inner side wall of the hollow shaft section.

9. The endoscope tip mount as described in claim 4, characterized in that, The tip seat is further provided with a second connecting groove, which is located between the first mounting hole and the second mounting hole. The second connecting groove forms a notch on the hole wall of the first mounting hole and the second mounting hole, connecting the first mounting hole and the second mounting hole.

10. The endoscope tip mount as described in any one of claims 1-3, characterized in that, The distal end face of the tip seat is provided with a groove, which extends from the nozzle mounting hole to the space between the first mounting hole and the second mounting hole.

11. An endoscope tip assembly, characterized in that, The endoscope includes an endoscope tip mount as described in any one of claims 1-10, wherein a nozzle is installed in the nozzle mounting hole, a first imaging component is installed in the first mounting hole, a second imaging component is installed in the second mounting hole, and an instrument channel is installed in the channel mounting hole; the distal end of the nozzle is provided with a spray portion protruding from the distal end face of the tip mount, the spray portion is located between the first imaging component and the second imaging component, the spray portion has a spray nozzle, the spray area of ​​the spray nozzle at least covers the first imaging component and the second imaging component, and the spray area of ​​the spray nozzle is the area covered by the fluid sprayed from the spray nozzle.

12. The endoscope tip assembly as claimed in claim 11, characterized in that, The spraying part is provided with a first spraying port and a second spraying port. The spraying area of ​​the first spraying port at least covers the first imaging component, and the spraying area of ​​the second spraying port at least covers the second imaging component.

13. The endoscope tip assembly as claimed in claim 12, characterized in that, The nozzle includes a tube body, which is inserted into the nozzle mounting hole and fixedly connected to the tip seat. The spray section is located at the distal end of the tube body, and the proximal end of the tube body is used to connect to a water-air pipe. The spray section has a first spray channel that is perpendicular to and communicates with the inner hole of the tube body. The side wall of the spray section near the imaging component is provided with a first spray port and a second spray port, both of which are communicated with the first spray channel.

14. The endoscope tip assembly as claimed in claim 13, characterized in that, The nozzle has a guide surface located at the point where the first injection channel connects to the inner hole of the pipe body. The guide surface is used to guide the fluid from the inner hole of the pipe body to the first injection channel. The guide surface is an inclined surface or an arc surface.

15. The endoscope tip assembly as claimed in claim 13, characterized in that, The tube body and the spray section are an integral structure. The outer wall of the tube body is provided with a protruding limiting part, and the wall of the nozzle mounting hole is provided with a limiting step. The limiting part and the limiting step cooperate to form the axial limiting of the nozzle.

16. The endoscope tip assembly as claimed in claim 12, characterized in that, The nozzle has an extension extending between the first mounting hole and the second mounting hole, and the spraying part is disposed on the extension. The first spraying port and the second spraying port are located on the sidewalls of opposite sides of the spraying part.

17. The endoscope tip assembly as claimed in claim 16, characterized in that, The distal end face of the tip seat is provided with a groove, which extends from the nozzle mounting hole to the space between the first mounting hole and the second mounting hole. The extension is fitted in the groove. The nozzle is provided with a second injection channel perpendicular to the axis of the nozzle mounting hole. The injection part has a hollow structure, and the second injection channel is connected to the first injection port and the second injection port through the hollow structure.

18. The endoscope tip assembly as claimed in claim 17, characterized in that, The tip seat is provided with a positioning step. A part of the positioning step is located on the wall of the nozzle mounting hole, and another part is located on the groove wall of the groove. The proximal end face of the nozzle is fixedly connected to the positioning step. The second injection channel is connected to the nozzle mounting hole. The proximal end of the nozzle mounting hole is used to connect to the water and air pipe.

19. An endoscope, characterized in that, Includes a water-air tube and an endoscope tip assembly as described in any one of claims 11-18, wherein the water-air tube is connected to the tip assembly for providing cleaning fluid to the nozzle.

Images