Front end assembly, insertion portion, and endoscope

Abstract

The present application discloses a front-end component, an insertion part and an endoscope, and relates to the technical field of medical devices. The front-end component is applied to an endoscope, and the front-end component includes a camera module and a front-end shell, wherein: the camera module is movably connected to the peripheral side of the front-end shell, the camera module includes a first camera, the shooting direction of the first camera is toward the distal end of the front-end shell, and the camera module is movably arranged along the axial direction of the front-end shell to adjust the axial position of the first camera. The above scheme can optimize the shooting performance of the camera module and the structural layout of the front-end component.

Description

Technical Field

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

[0002] With the continuous development of medical technology, endoscopes are increasingly used in diagnostic examinations, minimally invasive surgery, etc. When using an endoscope, the insertion portion of the endoscope is inserted into the human body, and the target part (such as a lesion) is inspected through a camera at the front end of the insertion portion.

[0003] In the relevant endoscope technology, an instrument tube is provided in the insertion part for inserting treatment instruments or aspirating tissue fluid. The camera and the outlet of the instrument tube are both arranged at the distal end face of the insertion part. With such a layout, the camera will have obvious shooting function defects when in use, and will also occupy the layout space of the instrument tube. Summary of the invention

[0004] The present application provides a front-end component, an insertion portion and an endoscope, which can optimize the shooting performance of the camera module and the structural layout of the front-end component.

[0005] In order to solve the above problems, this application adopts the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides a front-end assembly, which is applied to an endoscope, and the front-end assembly includes a camera module and a front-end shell, wherein:

[0007] The camera module is movably connected to the peripheral side of the front end shell, and the camera module includes a first camera. The shooting direction of the first camera is toward the distal side of the front end shell, and the camera module is movably arranged along the axial direction of the front end shell to adjust the axial position of the first camera.

[0008] In a second aspect, an embodiment of the present application provides an insertion portion, comprising the front end component described in the first aspect of the embodiment of the present application.

[0009] In a third aspect, an embodiment of the present application provides an endoscope, comprising a handle and the insertion portion described in the second aspect of the embodiment of the present application, wherein the handle is connected to the insertion portion.

[0010] The technical solution adopted in the embodiments of the present application can achieve the following beneficial effects:

[0011] Firstly, by movably arranging the camera module on one side of the peripheral side of the front end shell, the camera module is located outside the front end shell and does not occupy the internal space of the front end shell, thereby reserving a larger layout space for the instrument tube. The larger instrument tube is more convenient for handling instruments to enter and exit through the instrument tube, and can improve the suction efficiency of tissue fluid in the instrument tube.

[0012] Secondly, based on the above content, the camera module located on one side of the peripheral side of the front end shell can avoid the exit area of ​​the instrument tube, which can also avoid obstruction to the entry and exit of the treatment instrument and the suction of tissue fluid.

[0013] Thirdly, by setting the camera module to be movable along the axial direction of the front end shell, the axial position of the first camera can be adjusted, thereby adjusting the area inside the patient's body covered by the shooting field of view of the first camera. It can be seen that more image information of the target part can be obtained by moving the camera module of the embodiment of the present application without moving the insertion part.

[0014] Fourthly, it is precisely because the camera module of the embodiment of the present application has the performance of being movable along the axial direction of the front end shell, so in the process of driving the camera module to retract as a whole, the axial position of the field of view boundary of the first camera can be adjusted to reduce the blind spot of the field of view, especially the exit area of ​​the instrument tube.

[0015] In summary, compared with the related art, the front-end component of the embodiment of the present application optimizes the shooting performance of the camera module and optimizes the structural layout of the front-end component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0017] In the attached picture:

[0018] Figure 1 It is an axonometric view of the front-end assembly disclosed in the first embodiment of the present application when the camera module is located at the side edge of the front-end shell;

[0019] Figure 2 It is an axonometric view of the front-end assembly disclosed in the first embodiment of the present application from another perspective when the camera module is located at the edge of the side surface of the front-end shell;

[0020] Figure 3 A side view of the front-end assembly disclosed in the first embodiment of the present application when the camera module is located at the side edge of the front-end shell;

[0021] Figure 4 It is an axonometric diagram of the front-end assembly disclosed in the first embodiment of the present application when the camera module and the limiting boss are in limited cooperation;

[0022] Figure 5 It is a side view of the front-end assembly disclosed in the first embodiment of the present application when the camera module and the limiting boss are in limited cooperation;

[0023] Figure 6This is an axonometric diagram of the front-end assembly disclosed in the second embodiment of the present application when the camera module and the limiting boss are in limited cooperation;

[0024] Figure 7 A side view of the front-end assembly disclosed in the third embodiment of the present application when the camera module and the limiting boss are in limited position cooperation;

[0025] Figure 8 for Figure 7 A partial enlarged view of the middle A;

[0026] Fig. 9 It is an axonometric view of the front-end assembly disclosed in the first embodiment of the present application when the camera module is located at the far end side of the front-end housing;

[0027] Fig.10 It is a partial structural cross-sectional view of the front end assembly disclosed in the first embodiment of the present application (the front end shell is in a cross-sectional state);

[0028] Fig.11 It is a side view of the front-end assembly disclosed in the first embodiment of the present application when the camera module is located at the far end side of the front-end housing;

[0029] Fig.12 It is a side view of the front end assembly disclosed in the first embodiment of the present application when the camera module rotates from the distal end side of the front end shell to the peripheral side side thereof;

[0030] Fig.13 It is a partial structural sectional view of the front end assembly disclosed in the first embodiment of the present application (the main body is in a sectional state) and a local enlarged view of point B therein.

[0031] Description of reference numerals:

[0032] 100-camera module, 110-mounting seat, 111-giving way slope, 120-first camera, 130-second camera, 140-light source,

[0033] 200-connecting piece, 210-matching part,

[0034] 300-front end shell, 310-main body, 311-limiting boss, 311a-support slope, 311b-avoidance groove, 311c-installation channel, 311d-opening part, 312-step surface, 313-movement space, 320-end cover, 301-accommodation space,

[0035] 400-Instrument tube, 410-Instrument channel, 500-Traction rope. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0037] The technical solutions disclosed in various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0038] In the related endoscope technology, the outlets of the camera head and the instrument tube are arranged at the distal end surface of the insertion part. Such a layout may cause some defects in the front end component of the endoscope.

[0039] After research, the inventors found that the camera in the above-mentioned related technology is fixed at the front end of the insertion part, and its shooting function lacks flexibility. It is often necessary to adjust the position of the camera by moving the insertion part. It can be seen that the shooting performance of the front-end component in the related technology is poor.

[0040] At the same time, due to the narrow space in the human body cavity, the radial size of the insertion part is difficult to increase, and the camera will occupy the layout space of the instrument tube, resulting in a smaller instrument channel of the instrument tube, thereby limiting the size of the treatment instrument and the efficiency of aspirating tissue fluid.

[0041] Based on this, an embodiment of the present application provides a front end component, which is applied to an endoscope and solves the above-mentioned technical problems by arranging the camera module axially movably on the peripheral side of the front end shell.

[0042] See also Figures 1 to 13 The front-end assembly disclosed in the embodiment of the present application includes a camera module 100 and a front-end shell 300, wherein:

[0043] The front end shell 300 is a bearing structure near the distal end of the endoscope insertion part, and is used to install the camera module 100, the instrument tube 400, etc. The camera module 100 includes a camera, a light source 140 and a mounting seat 110, and the mounting seat 110 is used to carry components such as the camera and the light source 140, and the light source 140 is used to provide lighting function.

[0044] In an embodiment of the present application, the camera module 100 is movably connected to the peripheral side of the front end shell 300, and the camera module 100 includes a first camera 120. The shooting direction of the first camera 120 is toward the distal side of the front end shell 300. The camera module 100 is movably arranged along the axial direction of the front end shell 300 to adjust the axial position of the first camera 120.

[0045] It can be understood that in this layout, the camera module 100 is arranged outside the front end shell 300, that is, the camera module 100 will not occupy the internal space of the front end shell 300, thereby reserving a larger layout space for the instrument tube 400. In this way, the treatment instrument is more convenient to enter and exit the instrument tube 400, and the instrument tube 400 increases the amount of tissue fluid delivered, which can also improve the efficiency of tissue fluid suction. At the same time, the camera module 100 can avoid the exit area of ​​the instrument tube 400 on one side of the peripheral side to avoid obstruction to the entry and exit of the treatment instrument and the suction of tissue fluid.

[0046] It can be seen that the front-end components of the embodiment of the present application have been significantly optimized in terms of structural layout.

[0047] The camera module 100 is movably connected to the front end shell 300, that is, the camera module 100 can generate relative movement relative to the front end shell 300. Among them, the camera module 100 has the ability to move along the axial direction of the front end shell 300. The front end shell 300 is a part of the insertion part, and its axial direction is roughly located in the axial direction of the insertion part. During the movement of the camera module 100, the position of the camera module 100 in the axial direction of the insertion part can be adjusted.

[0048] The camera module 100 realizes the shooting function through the first camera 120. The shooting direction of the first camera 120 is toward the far end of the front end shell 300, so as to ensure that the first camera 120 can obtain the image information of the target part toward which the front end of the insertion part is facing. When the camera module 100 moves, the first camera 120 will move along the axial direction of the front end shell 300, so that the area covered by the shooting field of the first camera 120 can be adjusted. Figure 3 , Figure 5 and Figure 7 As shown, when the camera module 100 is located at different positions in the axial direction of the front end shell 300, the area covered by the shooting field of view of the first camera 120 (the dotted line extending from the first camera 120 in the figure is the field of view boundary l) will obviously change accordingly. In this way, more image information of the target part can be obtained by moving the camera module 100 without moving the insertion part.

[0049] In a specific application scenario, the camera module 100 can be extended along the axis of the front end shell 300 to approach the target part, thereby obtaining clearer image information; or, the camera module 100 can be retracted along the axis of the front end shell 300 to obtain a wider shooting field of view.

[0050] In addition, the inventors have also discovered that related technologies for configuring movable cameras often have blind spots in the field of view. The front-end component disclosed in the embodiment of the present application can adjust the axial position of the field of view boundary l of the first camera 120 by axially driving the camera module 100 to retract, thereby reducing the blind spot b, especially the dead angle area of ​​the exit area of ​​the instrument tube 400.

[0051] like Figure 3 As shown, the visual field boundary l of the first camera 120 forms a relatively large visual field blind area b at the exit area of ​​the instrument tube 400; Figure 5 As shown, by driving the camera module 100 to retract along the axial direction of the front end shell 300, the field of view boundary l of the first camera 120 approaches the far end of the front end shell 300, thereby reducing the field of view blind area b; Figure 7 As shown, by further driving the camera module 100 to retract along the axial direction of the front end shell 300, the field of view boundary l of the first camera 120 is closer to the far end of the front end shell 300, further reducing the field of view blind area b.

[0052] It can be seen that the front-end component of the embodiment of the present application can reduce the blind area b of the camera module 100 and further optimize the shooting performance of the camera module 100.

[0053] In the embodiments of the present application, the specific structure of the driving mechanism for driving the camera module 100 to move is not limited. For example, the driving mechanism may include at least part of a micro linear motor, a gear rack structure, etc. In some specific embodiments, such as Figure 1 to Figure 3 As shown, the camera module 100 can be driven by pulling the traction rope 500. Figure 3 The dotted arrow indicates that the camera module 100 is retracted by the traction rope 500. Further, the traction rope 500 can be guided to connect to the front end of the camera module 100 by setting a guide structure to pull the camera module 100 forward.

[0054] It should be noted that, in each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories relative to the user in the use environment, wherein 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".

[0055] like Figure 2 and Figure 3 As shown, in some embodiments of the present application, a accommodating space 301 is provided on the peripheral side of the front end shell 300 , and the accommodating space 301 extends to the far end of the front end shell 300 , and the camera module 100 is at least partially located in the accommodating space 301 .

[0056] It can be understood that the accommodating space 301 is used to accommodate the camera module 100. The camera module 100 can move in the accommodating space 301, and the accommodating space 301 extends to the far end of the front shell 300, so as to ensure that the first camera 120 will not be blocked and affect the shooting, and prevent the movement of the camera module 100 from being blocked. For details, please refer to Figure 3 and Figure 5 .

[0057] The camera module 100 of this layout is accommodated in the accommodation space 301, so that the installation height of the camera module 100 can be reduced to achieve the technical purpose of reducing the overall size of the front-end component. Even in the embodiment where the camera module 100 is completely located in the accommodation space 301, the overall size of the front-end component is roughly the size of the front-end shell 300, and the camera module 100 does not protrude from the front-end shell 300. Figure 3 As shown, the camera module 100 is partially accommodated in the accommodating space 301. Compared with the solution in which the camera module 100 is directly arranged on the side surface of the traditional front end shell 300, the overall size of the front end component of this embodiment is obviously smaller.

[0058] It can be seen that the front-end component under this layout achieves a reduction in overall size, making it easier to enter and exit the patient's cavity, and can reduce the intensity of scraping on the cavity wall and human tissue, thereby reducing the patient's stress response.

[0059] like Figure 2 and Fig. 9 As shown, in some embodiments of the present application, a limiting boss 311 is provided on the peripheral side of the front end shell 300 , and the limiting boss 311 is provided on the side of the accommodating space 301 away from the far end of the front end shell 300 , and is located on the moving path of the camera module 100 .

[0060] It can be understood that the camera module 100 needs to move in the vicinity of the far end of the front end shell 300 so that the first camera 120 can capture the field of view on the far end side of the front end shell 300, such as the field of view at the exit of the instrument tube 400. If the camera module 100 moves excessively in the direction away from the far end of the front end shell 300, the shooting field of view of the first camera 120 will be blocked by the intersection area c1 of the far end face of the front end shell 300 and its surrounding side surface, thereby affecting the shooting performance.

[0061] In this arrangement, when the camera module 100 is driven to retract in a direction away from the distal end of the front end shell 300, the limiting boss 311 can stop the camera module 100, so as to prevent the first camera 120 from being blocked by the boundary area c1 between the distal end surface of the front end shell 300 and its peripheral side surface and being unable to obtain complete image information. At the same time, when the limiting boss 311 and the camera module 100 are in a limiting position, the limiting boss 311 can support the camera module 100, prevent the camera module 100 from shaking, and thus optimize the shooting stability of the camera module 100.

[0062] In the embodiments of the present application, the specific configuration of the accommodating space 301 is not limited. For example, the accommodating space 301 may be a guide groove structure and axially penetrate the front end shell 300, and the camera module 100 may be slidably arranged along the extension direction of the guide groove structure.

[0063] In other embodiments, Figure 2 , Figure 3 and Fig. 9 As shown, the peripheral side surface of the front end shell 300 may be provided with a step surface 312, the step surface 312 is connected to the distal end of the front end shell 300, and the end of the step surface 312 away from the distal end of the front end shell 300 is connected to the limiting boss 311, so that the step surface 312 and the limiting boss 311 can form a step structure, and define an accommodating space 301 between the limiting boss 311 and the step surface 312.

[0064] It is understandable that the step surface 312 is a flat surface, which is more convenient for supporting the camera module 100 and realizing the relative movement relationship between the two. Both ends of the step surface 312 in the width direction can extend to the outer surface of the front shell 300 to set a larger camera module 100. A larger camera module 100 means that a larger layout space can be provided for the camera, and thus the shooting performance can be improved by setting a camera with better performance.

[0065] Of course, the bottom surface of the accommodating space 301 can be set to other surface shapes besides a flat surface, such as a concave arc surface, and the bottom surface of the camera module 100 (ie, the bottom surface of the mounting seat 110) also needs to be adaptively deformed.

[0066] like Figure 4 and Figure 5 As shown, in some embodiments of the present application, when the limiting boss 311 is in limiting cooperation with the camera module 100 , the shooting surface of the first camera 120 is aligned with the distal end surface of the front end shell 300 .

[0067] It can be understood that the above structural layout includes the situation that the shooting surface of the first camera 120 is roughly aligned with the distal end surface of the front end shell 300. "Aligned" means that the shooting surface of the first camera 120 is roughly coplanar with the distal end surface of the front end shell 300. In this way, the blind area b of the field of view of the first camera 120 is small, and a better shooting field of view can be obtained. For details, please refer to Figure 5 ; Secondly, the above-mentioned alignment features can enhance the aesthetics of the front-end components; furthermore, in combination with the embodiment described below in which the camera module 100 is rotatably disposed on the front-end shell 300, the camera module 100 only needs to move a short distance toward the distal end of the front-end shell 300 to achieve rotation, which can achieve faster operational response. For example, in some embodiments, when the insertion portion is withdrawn from the patient's cavity, the camera module 100 can be quickly pushed and rotated to the distal side of the front-end shell 300 via the cavity wall stop.

[0068] Or, if Figure 6 and Figure 7 As shown, in another embodiment, when the limiting boss 311 is in limiting cooperation with the camera module 100, the field of view boundary l of the first camera 120 passes through the intersection area c1 of the distal end surface of the front end shell 300 and its peripheral side surface.

[0069] It can be understood that in the process of driving the camera module 100 to retract axially along the front end shell 300, if the camera module 100 moves excessively in the direction away from the distal end of the front end shell 300, the shooting field of the first camera 120 will be blocked by the intersection area c1 between the distal end face of the front end shell 300 and its surrounding side surface, thereby affecting the shooting performance. In this regard, after the camera module 100 under the above layout is stopped by the limiting boss 311, the field of view boundary l of the first camera 120 roughly coincides with the intersection area c1 between the distal end face of the front end shell 300 and its surrounding side surface, that is, the first camera 120 is in the extreme position where its field of view boundary l is not blocked by the intersection area c1 between the distal end face of the front end shell 300 and its surrounding side surface. At this time, the shooting blind area b of the first camera 120 is the smallest, thereby achieving the purpose of optimizing the shooting performance of the camera module 100.

[0070] like Figure 7 and Figure 8As shown, in some embodiments of the present application, the intersection area c1 between the distal end surface of the front end shell 300 and its peripheral side surface is chamfered. Under such a layout, the intersection area c1 between the distal end surface of the front end shell 300 and its peripheral side surface is an arc transition. Compared with the traditional solution of the intersection area c2 transitioning through a right-angle configuration, the intersection area c1 has a shape feature that shrinks into the front end shell 300, thereby enabling the camera module 100 to move further in the direction away from the distal end of the front end shell 300, and ensuring that the field of view boundary l of the first camera 120 passes through the intersection area c2 and roughly overlaps with the intersection area c1, so as to further reduce the field of view blind area b of the first camera 120, thereby optimizing the shooting performance of the camera module 100.

[0071] Among them, the intersection area c1 between the distal end surface of the front end shell 300 and its peripheral side surface is an arc transition, which is conducive to the rotation operation of the camera module 100 between the peripheral side surface and the distal side of the front end shell 300.

[0072] Or, if Figure 8 As shown, the intersection area c1 between the distal end surface of the front end shell 300 and its peripheral side surface is chamfered. It can be understood that the intersection area c1 between the distal end surface of the front end shell 300 and its peripheral side surface is an inclined surface (see Figure 8 Similarly, compared with the traditional solution of transitioning the intersection area c2 through a right-angle configuration, this layout of the intersection area c1 can also reduce the blind spot b of the field of view of the first camera 120, thereby achieving the effect of optimizing the shooting performance of the camera module 100.

[0073] Of course, in the embodiment where the intersection area c1 between the distal end surface of the front end shell 300 and its peripheral side surface is a bevel transition, the bevel may roughly coincide with the visual field boundary l of the first camera 120, that is, Figure 8 The dotted line of the inclined plane in coincides with the dotted line of the visual field boundary l.

[0074] In an embodiment of the present application, the camera module 100 can be configured to be rotatable relative to the front end shell 300 so as to rotate between the distal end side and the peripheral side side of the front end shell 300. Thus, in the process of inserting the insertion part into or out of the patient's cavity, it is conceivable that the camera module 100 is rotated to the distal end side of the front end shell 300, thereby improving the convenience of the insertion part entering and exiting the patient's cavity by reducing the radial size of the front end component; moreover, when the camera module 100 is rotated to the peripheral side side of the front end shell 300, the shooting effect can be improved by moving along the axial direction of the front end shell 300; in addition, because the camera module 100 under this layout has the ability to rotate, a larger layout space can be reserved for the instrument tube 400 in the front end shell 300 to obtain a larger instrument channel 410.

[0075] Of course, the camera module 100 with the rotation function includes a second camera 130 arranged on the mounting seat 110. When the camera module 100 is located on the far side of the front end shell 300, the shooting direction of the second camera 130 is located in the axial direction of the front end shell 300.

[0076] In a specific embodiment, the front end module also includes a sliding seat, the camera module 100 is rotatably set on the sliding seat, and the sliding seat is movably set on the peripheral side of the front end shell 300. When the sliding seat slides to a position close to the distal end of the front end shell 300, the camera module 100 can be rotated to switch its position between the distal side and the peripheral side of the front end shell 300.

[0077] like Figure 3 , Fig. 9 , Figure 10 to Figure 12 As shown, in another embodiment, the front end component also includes a connecting member 200, one end of the connecting member 200 is connected to the camera module 100, a movement space 313 extending along its axial direction is provided in the front end shell 300, and the other end of the connecting member 200 is movably arranged in the movement space 313 along its axial direction and rotatably arranged in the movement space 313.

[0078] It can be understood that under this layout, the connector 200 realizes the movable connection between the camera module 100 and the front end shell 300. Since the other end of the connector 200 is movably and rotatably arranged on the front end shell 300, the camera module 100 and the front end shell 300 can be moved and rotated relative to each other. It can be seen that the connector 200 has both the transfer functions of movement and rotation, which is conducive to simplifying the internal structural layout of the front end component.

[0079] Of course, the connecting member 200 is used to drive the camera module 100 to be axially movable on one side of the peripheral side of the front end shell 300, and can rotate between the distal end side and the peripheral side of the front end shell 300.

[0080] The other end of the connector 200 may be provided with a mating portion 210 for realizing relative movement in the movement space and for limiting cooperation with the front end shell 300 .

[0081] Furthermore, the camera module 100 can be rotated by pulling the traction rope 500. Specifically, Fig.11 As shown, under the pulling action of the traction rope 500, the camera module 100 rotates, and the rotation direction is as shown in FIG. Fig.11 As shown by the dotted arrow in Fig.12 As shown, the camera module 100 rotates to a position where it abuts against the intersection area c1 of the distal end surface of the front end shell 300 and its peripheral side surface, and continues to rotate under the pulling of the traction rope 500, and the rotation direction is as shown in FIG. Fig.12 As shown by the dotted arrow in Figure 3 As shown, the camera module 100 rotates to one side of the peripheral side of the front end shell 300, and the traction rope 500 continues to exert a pulling effect, and moves along the axial direction of the front end shell 300, and the moving direction is as shown in FIG. Figure 3 As shown by the dotted arrow, until it moves to the limit position, Figure 5 shown.

[0082] Further, in order to facilitate the assembly of the connecting member 200 and the movement space 313, as shown in FIG. Fig.10 As shown, the matching portion 210 can be a ball head structure, and the groove wall of the movement space 313 is arc-shaped, which is conducive to improving the smoothness of the movement and rotation of the connecting member 200.

[0083] In order to facilitate the disassembly and assembly of the connector 200, Figure 1 and Fig.10 As shown, the front end housing 300 includes a main body 310 and an end cover 320 detachably mounted on the distal end surface of the main body 310 .

[0084] like Figure 2 , Figure 3 , Figure 5 and Figures 9 to 12 As shown, in some embodiments of the present application, a proximal end surface of the camera module 100 is provided with a yield slope 111 on the upper portion, and the yield slope 111 is inclined toward the distal end surface of the camera module 100, and the peripheral side surface of the front end shell 300 is provided with a limiting boss 311 for stopping the camera module 100, and the distal end surface of the limiting boss 311 is provided with a supporting slope 311a for abutting against the yield slope 111.

[0085] It should be understood that, when the camera module 100 has the ability to rotate, the proximal end face of the camera module 100 refers to the end face on the side of the camera module 100 (actually the mounting base 110) that is away from the third camera.

[0086] Under such a layout, during the rotation of the camera module 100, the intersection area c1 between the distal end surface of the front end shell 300 and its peripheral side surface is avoided to reduce its space occupation during rotation. When the camera module 100 moves to the extreme position on the peripheral side surface of the front end shell 300, the support slope 311a just abuts against the give-way slope 111 to prevent the camera module 100 from shaking and ensure that the shooting direction of the first camera 120 is toward the distal side of the front end shell 300, thereby optimizing the shooting stability of the camera module 100; at the same time, the cooperation of the support slope 311a and the give-way slope 111 increases the contact area between the camera module 100 and the front end shell 300, thereby improving the cooperation stability between the camera module 100 and the front end shell 300.

[0087] like Figure 2 , Figure 4 , Figure 6 and Fig. 9 As shown, in some embodiments of the present application, the front end assembly also includes a traction rope 500 for pulling the camera module 100 to move, and the distal end face of the limiting boss 311 is provided with an avoidance groove 311b, and the avoidance groove 311b is recessed along the axial direction of the front end shell 300, and the traction rope 500 is passed through the limiting boss 311 and through the avoidance groove 311b.

[0088] It can be understood that the traction rope 500 of the embodiment of the present application is inserted into the front end shell 300 to improve the compactness of the structure and prevent damage to the internal tissues of the human body. In the process of pulling the camera module 100 on one side of the peripheral side of the front end shell 300 through the traction rope 500, the part of the traction rope 500 close to the camera module 100 will be bent (see Figure 3 ), and will interfere with the limiting boss 311 and wear each other.

[0089] The avoidance groove 311b in the above layout can provide an accommodation space 301 for the curved traction rope 500, thereby avoiding the mutual wear of the limiting boss 311 and the traction rope 500 due to interference, and can also optimize the smoothness of the traction rope 500 pulling the camera module 100. For details, please refer to Figure 4 and Figure 6 .

[0090] In an embodiment of the present application, the traction rope 500 is connected to the proximal end face of the camera module 100 so that more components of the pulling action of the traction rope 500 are distributed on the moving path of the camera module 100, thereby optimizing the pulling efficiency.

[0091] like Fig.13 As shown, in some embodiments of the present application, the front end component also includes a traction rope 500 for pulling the camera module 100, and the front end shell 300 is provided with a mounting hole 311c for passing the traction rope 500, and an open portion 311d is provided at the opening of the mounting hole 311c, and the open area of ​​the open portion 311d gradually increases in the direction away from the mounting hole 311c.

[0092] It is understandable that the portion of the traction rope 500 connected to the camera module 100 will bend in the process of pulling the camera module 100, causing the traction rope 500 at the opening to collide with the edge of the opening and wear. In this layout, the opening of the installation channel 311c is in conflict with the traction rope 500 through the open portion 311d, and the open portion 311d can bend the traction rope 500 at the opening, thereby greatly reducing wear and preventing the traction rope 500 from breaking.

[0093] See also Figures 1 to 13, an embodiment of the present application provides an insertion portion, including the front end component mentioned in any of the aforementioned schemes, so that the insertion portion has the beneficial effects of the aforementioned front end component, which will not be repeated here.

[0094] An embodiment of the present application further provides an endoscope, comprising a handle and an insertion portion of any of the aforementioned schemes. The beneficial effects of the endoscope including the aforementioned insertion portion will not be repeated here.

[0095] The insertion part is connected to a handle, and the posture of the curved section of the insertion part can be adjusted by manipulating the handle to control the direction of the front end of the insertion part.

[0096] The endoscope in the embodiments of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not impose any specific restrictions on the type of the endoscope.

[0097] The above embodiments of the present 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. Considering the simplicity of the text, they will not be repeated here.

[0098] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A front end assembly, applied to an endoscope, characterized in that: The front-end assembly includes a camera module and a front-end shell, wherein: The camera module is movably connected to the outside of the peripheral side surface of the front end shell, and the peripheral side surface is the side surface distributed around the axis of the front end shell to avoid the exit area of ​​the instrument tube of the endoscope located on the distal end side of the front end shell; the camera module includes a first camera, and the shooting direction of the first camera is toward the distal end side of the front end shell. The camera module is movably arranged along the axial direction of the front end shell to adjust the axial position of the first camera.

2. The front end assembly according to claim 1, characterized in that: An accommodating space is provided on the peripheral side surface of the front end shell, and the accommodating space extends to the distal end of the front end shell, and the camera module is at least partially located in the accommodating space.

3. The front end assembly according to claim 2, characterized in that: A limiting boss is provided on the peripheral side surface of the front end shell. The limiting boss is provided on a side of the accommodating space away from the far end of the front end shell and is located on the moving path of the camera module.

4. The front end assembly according to claim 3, characterized in that: When the limiting boss cooperates with the camera module, the shooting surface of the first camera is aligned with the distal end surface of the front end shell, or the field of view boundary of the first camera passes through the intersection area between the distal end surface of the front end shell and its peripheral side surface.

5. The front end assembly according to any one of claims 1 to 4, characterized in that: The intersection area between the distal end surface of the front end shell and its peripheral side surface is rounded or chamfered.

6. The front end assembly according to any one of claims 1 to 4, characterized in that: The front end assembly also includes a connector, one end of which is connected to the camera module, a movement space extending along its axial direction is provided in the front end shell, and the other end of the connector is movably arranged along its axial direction in the movement space and rotatably arranged in the movement space.

7. The front end assembly according to claim 6, characterized in that: A yield slope is provided on the upper portion of the proximal end face of the camera module, and the yield slope is inclined toward the distal end face of the camera module. A limiting boss is provided on the peripheral side surface of the front end shell for stopping the camera module, and a supporting slope is provided on the distal end face of the limiting boss for abutting against the yield slope.

8. The front end assembly according to claim 7, characterized in that: The front end assembly also includes a traction rope for pulling the camera module to move. The distal end face of the limiting boss is provided with an avoidance groove, and the avoidance groove is recessed along the axial direction of the front end shell. The traction rope is passed through the limiting boss and the avoidance groove.

9. An insertion portion, characterized in that: A front end assembly comprising any one of claims 1 to 8.

10. An endoscope, characterized in that: The invention comprises a handle and the insertion part according to claim 9, wherein the handle is connected to the insertion part.

Images