Front end base, front end assembly, insertion portion, and endoscope

Abstract

The application discloses a front end seat, a front end assembly, an insertion part and a endoscope, and relates to the technical field of medical instruments. The front end seat disclosed by the application is used for the front end assembly of an endoscope, and has a wire channel. The wire channel is used for penetrating a cable of the front end assembly. The wire channel comprises a first guide section. Along the axial direction of the distal end to the proximal end of the front end seat, the first guide section extends and is distributed away from the axis of the front end seat. The front end seat also has an instrument channel. The instrument channel is formed through the avoidance area formed by the deviation of the first guide section. The above scheme can be used to optimize the insertion performance of the insertion part of the endoscope.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a front-end seat, a front-end component, an insertion part, and an endoscope. Background Technology

[0002] With the continuous development of medical technology, endoscopes have been widely used in the diagnosis and treatment of diseases. When using an endoscope, images of the affected area can be acquired through a camera module at the distal end of the insertion section, and surgical instruments can be inserted through the instrument channel to perform the procedure.

[0003] In related technologies, the instrument tube can be positioned behind the camera module, while only the camera and light source are arranged on the distal end of the front-end seat. This allows for a smaller outer perimeter of the front-end seat, optimizing the insertion performance of the insertion section. However, in practice, the aforementioned insertion sections still experience insertion difficulties. Utility Model Content

[0004] This application provides a front-end base, a front-end component, an insertion part, and an endoscope, which can at least be used to optimize the insertion performance of the insertion part of the endoscope.

[0005] In a first aspect, embodiments of this application provide a front-end mount for a front-end component of an endoscope.

[0006] The front-end unit has a cable routing channel for routing cables of the front-end assembly. The cable routing channel includes a first guide section extending axially from the distal end to the proximal end of the front-end unit, offset from the axis of the front-end unit. The front-end unit also has an instrument channel, which is a clearance area formed by the offset of the first guide section.

[0007] In some embodiments, the cable routing channel includes a second guide segment connected to the proximal end of the first guide segment, and the front end is provided with an opening in the side wall of the second guide segment to avoid a corresponding portion of the cable.

[0008] In some embodiments, the front end has a first notch on its sidewall, the first notch corresponding to the second guide segment to achieve an opening; the first notch corresponds to exposing the proximal end of the first guide segment to avoid a corresponding portion of the cable.

[0009] In some embodiments, the instrument channel includes a main channel segment and a connecting segment connecting the main channel segment and the instrument port of the front end seat, wherein: the instrument port is opened on the side of the front end seat, the main channel segment extends along the axial direction of the front end seat, and the projection of the main channel segment in the axial direction of the front end seat at least partially coincides with the projection of the device mounting space of the front end seat; or, the instrument port is opened on the distal end face of the front end seat, both the main channel segment and the connecting segment extend along the axial direction of the front end seat, and the projection of the main channel segment in the axial direction of the front end seat partially coincides with the projection of the device mounting space of the front end seat.

[0010] In some embodiments, where the instrument port is located on the side of the front end seat, the first guide section and the connecting section are at least partially parallel.

[0011] In some embodiments, when the instrument port is located on the side of the front end seat, the connecting section passes through the avoidance area, and the main channel section is offset from the avoidance area in the axial direction of the front end seat.

[0012] In some embodiments, the front end has a second notch that connects the wiring channel to the portion of the main channel segment where the instrument tube is installed, so as to avoid at least one of the instrument tube and the cable.

[0013] Secondly, embodiments of this application provide a front-end component, including the front-end socket described in the first aspect of this application.

[0014] Thirdly, embodiments of this application provide an insertion part, including the front-end component described in the second aspect of this application.

[0015] Fourthly, embodiments of this application provide an endoscope including the insertion portion described in the third aspect of this application.

[0016] The technical solution adopted in this application can achieve the following beneficial effects:

[0017] In the front-end connector disclosed in this application embodiment, a first guide segment offset from the front-end connector axis is provided in the wiring channel, and a avoidance area is formed on the side of the first guide segment near the instrument channel, thereby reserving installation layout space for the instrument channel. Based on this layout, the instrument channel can be arranged in the avoidance area where the wiring channel originally corresponds axially with the device mounting space, resulting in a higher degree of overlap between the projection of the instrument channel and the device mounting space in the axial direction of the front-end connector. Compared with related technologies, the front-end connector of this application embodiment effectively reduces the radial dimension and significantly improves the insertion performance of the insertion part. Attached Figure Description

[0018] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0019] In the attached diagram:

[0020] Figure 1 Isometrics of the front-end components disclosed in some embodiments of this application Figure 1 ;

[0021] Figure 2 Isometrics of the front-end components disclosed in some embodiments of this application Figure 2 ;

[0022] Figure 3This is a front view of the front-end components disclosed in some embodiments of this application;

[0023] Figure 4 for Figure 3 Sectional view along the AA direction.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100-Front-end mount, 100a-Instrument channel, 100a1-Connecting section, 100a2-Main channel section, 100b-Instrument port, 100c-Device mounting space, 100d-Cable routing channel, 100d1-First guide section, 100d2-Second guide section, 100e-First notch,

[0026] 200 - Camera, 300 - Light source, 400 - Cable, 500 - Instrument tube. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] In various embodiments of this application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories relative to the user in the usage environment. The end closer to the user is designated as the "proximal end", and the end farther from the user is designated as the "distal end".

[0029] To facilitate understanding of the front-end base, front-end component, insertion part, and endoscope provided in the embodiments of this application, the relevant technologies will first be introduced in conjunction with the application scenarios below.

[0030] Regarding the issue of difficulty in inserting the insertion section of related endoscopes, the inventors discovered through research that this is mainly due to the inability to effectively reduce the external dimensions of the front-end unit. Specifically, in the relevant front-end unit, the instrument tube is positioned behind the camera module, and their axial projections overlap. This allows for a certain reduction in the radial dimension of the front-end unit. However, because the camera module has cables extending from its rear end, the axial overlap between the camera module and the instrument tube remains relatively small, preventing an effective reduction in the external dimensions of the front-end unit and thus hindering the improvement of insertion performance.

[0031] In view of this, some embodiments of this application provide a front-end mount for a front-end component of an endoscope.

[0032] Please see Figures 1-4 The front-end mount 100 disclosed in this application embodiment has a wiring channel 100d for passing through the cable 400 of the front-end assembly. The wiring channel 100d includes a first guide segment 100d1, which extends off-axis from the axis O of the front-end mount 100 along the axial direction from the distal end to the proximal end of the front-end mount 100. The front-end mount 100 also has an instrument channel 100a, which is an avoidance area formed by the offset setting of the first guide segment 100d1.

[0033] The front-end mount 100 is the basic component of the front-end assembly of the endoscope insertion section, serving as the mounting base for other structures within the front-end assembly. The front-end mount 100 provides mounting space for the functional components of the front-end assembly through its component mounting space 100c. These functional components include at least parts of the camera 200, light source 300 (typically an LED), circuit board, and instrument tube 500. The front-end mount 100 also provides some protection for these functional components.

[0034] The cable 400 of the front-end component refers to the cable 400 led out from the functional device, which is installed in the wiring channel 100d within the front-end base 100 and is used to realize power supply and signal interaction. The embodiments of this application do not limit the specific type of the cable 400. It can be a cable 400 used by the camera 200 or the light source 300 alone, or it can be a shared cable 400 used by the camera 200 and the light source 300.

[0035] In the embodiments of this application, the first guide segment 100d1 of the wiring channel 100d is offset from the axis O of the front end seat 100 (see reference). Figure 4 The wiring channel 100d, which extends along the axial direction of the front end seat 100 in the related technology, is distributed as an extension of the dotted line in the diagram. It forms an avoidance area in the area of ​​the front end seat 100 that is deviated from its original position. This avoidance area can release the layout space in the front end seat 100, allowing the instrument channel 100a to pass through the layout area that originally belonged to the wiring channel 100d.

[0036] It should be understood that in the front-end components of related technologies, after the cable 400 is led out from the rear end of the functional device, there is often a large space left between it and the outer wall of the front end seat 100 on the side away from the instrument channel 100a. Therefore, the feature of the off-set setting of the wiring channel 100d (corresponding to the layout area of ​​the cable 400) in the embodiment of this application makes good use of the above-mentioned wasted layout space, thereby ensuring the smooth arrangement of the wiring channel 100d.

[0037] In this case, the instrument channel 100a occupies the original layout area of ​​the wiring channel 100d. The wiring channel 100d was originally axially aligned with the device mounting space 100c of the front end 100. With the instrument channel 100a located closer to the wiring channel 100d within the front end 100, the projection overlap between the instrument channel 100a and the device mounting space 100c is higher in the axial direction of the front end 100. This effectively reduces the radial dimension of the front end 100, thereby effectively improving the insertion performance of the insertion part.

[0038] In some embodiments, such as Figures 1-4 As shown, the cable routing channel 100d includes a second guide segment 100d2 connected to the proximal end of the first guide segment 100d1. The front end seat 100 is provided with an opening in the side wall corresponding to the second guide segment 100d2 to avoid the corresponding part of the cable 400.

[0039] It should be understood that this layout eliminates the sidewall of the front seat 100 corresponding to the second guide surface, causing the second guide segment 100d2 to be set further away from the axis O of the front seat 100 in the radial direction, and causing the first guide segment 100d1 to be set further away from the axis O of the front seat 100. This leaves a larger avoidance area, allowing the instrument channel 100a to be set further closer to the wiring channel 100d on the front seat 100, thus occupying more of the layout space that originally belonged to the wiring channel 100d. This further improves the overlap of the projection of the instrument channel 100a and the device mounting space 100c in the axial direction of the front seat 100, achieving a better reduction in the radial dimension of the front seat 100 and improving the insertion performance of the insertion part.

[0040] Furthermore, such as Figures 1-4 As shown, the front end 100 has a first notch 100e on its side wall, the first notch 100e corresponding to the second guide section 100d2 to achieve an opening; the first notch 100e exposes the proximal end of the first guide section 100d1 to avoid the corresponding part of the cable 400.

[0041] It should be understood that the cable routing channel 100d is used to extend the cable 400. After the cable 400 is placed in the cable routing channel 100d, its extension shape will be constrained by the cable routing channel 100d. In the junction area between the first extension section and the second extension section, the cable 400 will be bent. In this example, the first notch 100e extends to the proximal end of the first guide surface, so that the bent part of the cable 400 can be exposed through the first notch 100e, thus preventing interference and scratching with the side wall if the first notch 100e is not present, thereby avoiding damage to the cable 400.

[0042] The embodiments of this application do not impose specific limitations on the configuration of the instrument channel 100a.

[0043] For example, such as Figure 3 and Figure 4 As shown, the instrument channel 100a includes a main channel section 100a2 and a connecting section 100a1 connecting the main channel section 100a2 and the instrument port 100b of the front end seat 100. The instrument port 100b is located on the side of the front end seat 100. The main channel section 100a2 extends along the axial direction of the front end seat 100. In the axial direction of the front end seat 100, the projection of the main channel section 100a2 at least partially overlaps with the projection of the device mounting space 100c of the front end seat 100. With this arrangement, the connecting section 100a1 is equivalent to a deflection section. It can both occupy the aforementioned avoidance area by the main channel section 100a2 to achieve the technical objective of reducing the radial dimension of the front end seat 100, and also allow for a larger opening of the instrument port 100b, thereby obtaining better suction performance.

[0044] For example, the instrument channel 100a includes a main channel segment 100a2 and a connecting segment 100a1 connecting the main channel segment 100a2 and the instrument port 100b of the front end seat 100. The instrument port 100b can be opened on the distal end face of the front end seat 100. Both the main channel segment 100a2 and the connecting segment 100a1 extend along the axial direction of the front end seat 100. In the axial direction of the front end seat 100, the projection of the main channel segment 100a2 coincides with the projection of the device mounting space 100c of the front end seat 100. With this arrangement, the connecting segment 100a1 is equivalent to a tapered section, and the instrument port 100b occupies a smaller layout area on the distal end face of the front end seat 100, thereby achieving the purpose of reducing the outer peripheral dimensions of the front end seat 100.

[0045] In some embodiments, such as Figure 3 and Figure 4 As shown, when the instrument port 100b is located on the side of the front end seat 100, the first guide section 100d1 and the connecting section 100a1 are at least partially parallel. It should be understood that the partition wall within the front end seat 100 used to separate the wiring channel 100d and the instrument channel 100a needs to have a certain thickness to meet the strength requirements. As the most core improvement feature of the front end seat 100 in this application embodiment, if the first guide section 100d1 and the connecting section 100a1 do not have the characteristic of being roughly parallel, then one end of them will be smaller and the other end larger. The smaller end of the gap must ensure that it meets the above-mentioned thickness to meet the strength requirements of the partition wall. In this case, the larger end of the gap will reduce the occupation of the avoidance area by the instrument channel 100a.

[0046] In this example, the first guide section 100d1 and the connecting section 100a1 are at least partially parallel, which keeps the interval between them at a minimum. This satisfies the strength requirements of the partition wall and ensures that the arrangement of the instrument channel 100a fully occupies the avoidance area formed by the offset arrangement of the wiring channel 100d. This effectively reduces the radial dimension of the front end seat 100, thereby effectively improving the insertion performance of the insertion part.

[0047] In some embodiments, such as Figure 3 and Figure 4 As shown, with the instrument port 100b located on the side of the front end seat 100, the connecting section 100a1 passes through the avoidance area, and the main channel section 100a2 is offset from the avoidance area along the axial direction of the front end seat 100. It should be understood that the main channel section 100a2 extends along the axis O of the front end seat 100, while the avoidance area is the layout area formed by the deviation of the cable channel 100d from the first guide section 100d1. If the distal end of the main channel section 100a2 extends into the avoidance area, the main channel section 100a2 can only avoid penetrating the partition wall between the first guide section 100d1 and the connecting section 100a1 by gradually moving radially away from the cable 400. However, this would reduce the effectiveness of the instrument channel 100a in reducing the size of the front end seat 100 by utilizing the avoidance area.

[0048] In this case, the above-mentioned structural layout limits the distal end of the main channel segment 100a2 to the edge of the avoidance area at most, and does not extend into the avoidance area. That is, the avoidance area is completely traversed by the bent connecting segment 100a1. The two can be adapted in shape, so that the instrument channel 100a makes full use of the avoidance area and achieves an effective reduction in the size of the front end seat 100.

[0049] In some embodiments, the front end 100 has a second notch that connects the wiring channel 100d with the portion of the main channel segment 100a2 where the instrument tube 500 is mounted, thereby avoiding obstruction of at least one of the instrument tube 500 and the cable 400. With this arrangement, after the front end 100 is assembled with the instrument tube 500 and the cable 400, the second notch can accommodate the instrument tube 500 and / or the cable 400, effectively allowing them to be embedded in the partition wall between the wiring channel 100d and the main channel segment 100a2. This utilizes the space originally occupied by the partition wall to compress the space occupied by the instrument tube 500 and the cable 400, thereby further reducing the radial dimension of the front end 100 and improving the insertion performance of the insertion portion.

[0050] Furthermore, by configuring the width of the second notch, the cable 400 and the instrument tube 500 can be abutted together after assembly, maximizing the effect of reducing the radial dimension of the front end 100.

[0051] Please see Figures 1-4 Furthermore, embodiments of this application also provide a front-end component, which includes the front-end socket 100 mentioned in any of the foregoing solutions. Thus, the front-end component possesses the beneficial effects of the aforementioned front-end socket 100, which will not be elaborated upon here.

[0052] Please see Figures 1-4 Furthermore, embodiments of this application also provide an insertion part, which includes the front-end component mentioned in any of the foregoing solutions. Thus, the insertion part possesses the beneficial effects of the aforementioned front-end component, which will not be elaborated upon here.

[0053] Please see Figures 1-4 Embodiments of this application also provide an endoscope, which includes a handle and an insertion portion as mentioned in any of the foregoing solutions, with the handle connected to the insertion portion. Thus, the endoscope possesses the beneficial effects of the aforementioned insertion portion, which will not be elaborated upon here.

[0054] The endoscopes involved in the embodiments of this application may be bronchoscopes, pyeloscopes, esophagoscopes, gastroscopes, colonoscopes, otoscopes, rhinoscopes, oral endoscopes, laryngoscopes, colposcopes, laparoscopes, arthroscopes, etc. The embodiments of this application do not specifically limit the types of endoscopes.

[0055] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0056] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A front-end mount for an endoscope's front-end assembly, characterized in that, The front-end base has a wiring channel for passing cables of the front-end assembly through it. The wiring channel includes a first guide section along the axial direction from the distal end to the proximal end of the front-end base. The first guide section extends off-axis from the axis of the front-end base. The front end also has an instrument channel, which is an avoidance area formed by the offset setting of the first guide section.

2. The front-end mount according to claim 1, characterized in that, The cable routing channel includes a second guide segment connected to the proximal end of the first guide segment, and the front end seat is provided with an opening in the side wall of the second guide segment to avoid the corresponding part of the cable.

3. The front-end mount according to claim 2, characterized in that, The front end has a first notch on its side wall, which corresponds to the second guide segment to achieve an opening; the first notch exposes the proximal end of the first guide segment to avoid a corresponding portion of the cable.

4. The front end holder according to any one of claims 1 to 3, characterized in that, The instrument channel includes a main channel section and a connecting section between the main channel section and the instrument port of the front end seat, wherein: The instrument port is opened on the side of the front end seat, and the main channel section extends along the axial direction of the front end seat. In the axial direction of the front end seat, the projection of the main channel section at least partially coincides with the projection of the device mounting space of the front end seat. Alternatively, the instrument port is located on the distal end face of the front end seat, and both the main channel segment and the connecting segment extend along the axial direction of the front end seat. In the axial direction of the front end seat, the projection of the main channel segment coincides with the projection of the device mounting space of the front end seat.

5. The front-end mount according to claim 4, characterized in that, When the instrument port is located on the side of the front end seat, the first guide section and the connecting section are arranged at least partially parallel.

6. The front-end mount according to claim 4, characterized in that, When the instrument port is located on the side of the front end seat, the connecting section passes through the avoidance area, and the main channel section is offset from the avoidance area in the axial direction of the front end seat.

7. The front-end mount according to claim 4, characterized in that, The front end has a second notch that connects the wiring channel to the portion of the main channel section where the instrument tube is installed, in order to avoid at least one of the instrument tube and the cable.

8. A front-end component, characterized in that, Includes the front end mount as described in any one of claims 1 to 7.

9. An insertion part, characterized in that, Includes the front-end component as described in claim 8.

10. An endoscope, characterized in that, It includes a handle and the insertion part as described in claim 9, wherein the handle is connected to the insertion part.

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