Endoscope and circuit structure and front-end assembly thereof

Abstract

The present application belongs to the technical field of medical instruments, and particularly relates to an endoscope and a circuit structure and a front-end assembly thereof. The circuit structure comprises a camera module mounting part, a connection part, and a light source mounting part. The camera module mounting part and the light source mounting part are arranged at an interval and facing each other. Both ends of the connection part are connected to the camera module mounting part and the light source mounting part, respectively. The light source mounting part is provided with a clearance hole, which extends to the edge of one side of the light source mounting part, so that the light source mounting part forms a closed end and an open end that are arranged facing away from each other. The open end is connected to the connection part. The light source mounting part, the connection part, and the camera module mounting part enclose to form a closed hollowed-out region. The hollowed-out region comprises the clearance hole. The open end of the light source mounting part of the present application is connected to the connection part, the end of the light source mounting part facing away from the connection part is the closed end and is not a free end, and has relatively high rigidity. Therefore, in the glue injection process, the risk of deformation of the light source mounting part and the risk of deflection of the light emitting direction of the light source can be reduced.

Description

Endoscope and its circuit structure and front-end components Technical Field

[0001] The present application belongs to the field of medical device technology, and specifically relates to an endoscope and its circuit structure and front-end components. Background Art

[0002] An endoscope is a commonly used medical device that can directly enter the body's natural channels and provide doctors with sufficient diagnostic information to treat diseases. The endoscope includes a front-end component that can enter the body through a human cavity or surgical incision.

[0003] The front-end assembly typically includes a front-end housing, a camera module, a light source, and a flexible circuit board. Both the camera module and the light source are mounted on the flexible circuit board, which is first positioned within the front-end housing and then secured with glue. However, current flexible circuit boards are prone to deformation during the glue injection process, which can cause the light source's output direction to deviate, thereby reducing lighting quality and framing quality. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide an endoscope and its circuit structure and front-end components, which can solve the problem that the current infinite-step sliding sleeve has the risk of being unable to open.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a circuit structure of an endoscope, comprising a camera module mounting portion, a connecting portion, and a light source mounting portion, wherein the camera module mounting portion and the light source mounting portion are spaced apart and opposite to each other, and the two ends of the connecting portion are respectively connected to the camera module mounting portion and the light source mounting portion.

[0007] The light source mounting part is provided with an avoidance hole for the camera module to pass through. The avoidance hole extends to the edge of one side of the light source mounting part so that the light source mounting part forms a closed end and an open end arranged back to back. The open end is connected to the connecting part. The light source mounting part, the connecting part and the camera module mounting part surround and form a closed hollow area, and the hollow area includes the avoidance hole.

[0008] In a second aspect, an embodiment of the present application provides a front-end assembly of an endoscope, including a camera module and the above-mentioned circuit structure, wherein a camera module mounting portion, a connecting portion, and a light source mounting portion surround and form an accommodating space, and the accommodating space is located between the camera module mounting portion and the light source mounting portion.

[0009] The camera module is arranged at the camera module installation part, the first part of the camera module is located in the accommodating space, and the second part of the camera module is located in the avoidance hole.

[0010] In a third aspect, an embodiment of the present application provides an endoscope comprising a front end assembly.

[0011] In the embodiment of the present application, the open end of the light source mounting portion is connected to the connecting portion, thereby indirectly connected to the camera module mounting portion, that is, the open end of the light source mounting portion is not a free end, and the end of the light source mounting portion away from the connecting portion is a closed end, which is also not a free end. The light source mounting portion, the connecting portion and the camera module mounting portion extend along a circular closed contour and form the above-mentioned hollow area. Therefore, the circuit structure rigidity of this embodiment is relatively large, so that the light source mounting portion can have a better ability to resist the extrusion of the glue. During the glue injection process, when the glue squeezes the light source mounting portion, the extrusion force exerted on the light source mounting portion can be transmitted to the camera module mounting portion through the above-mentioned closed contour to enhance the ability of the light source mounting portion to resist the extrusion of the glue, thereby reducing the risk of deformation of the light source mounting portion and reducing the risk of deviation of the light output direction of the light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG1 is a schematic diagram of a circuit structure disclosed in an embodiment of the present application;

[0013] FIG2 is a structural diagram 1 of a front-end assembly disclosed in an embodiment of the present application;

[0014] FIG3 is a structural diagram 2 of a front-end assembly disclosed in an embodiment of the present application;

[0015] FIG4 is a schematic structural diagram of a support member disclosed in an embodiment of the present application.

[0016] Description of reference numerals:

[0017] 100. Base plate; 110. Hollow area; 200. Camera module mounting portion; 300. Connecting portion; 310. Hollow groove; 400. Light source mounting portion; 410. Avoidance hole; 411. First section; 412. Second section; 413. Third section; 500. Accommodating space; 600. Camera module; 610. Lens holder; 700. Support member; 710. Notch; 720. Protruding portion; 800. Light source. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0020] The endoscope, its circuit structure, and front-end components provided in the embodiments of the present application are described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0021] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its components 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".

[0022] The current flexible circuit board includes a camera module mounting part, a connecting part and a light source mounting part. The camera module mounting part is connected to the light source mounting part through the connecting part. The light source mounting part and the camera module mounting part are spaced apart and opposite to each other. The light source mounting part is provided with an avoidance hole for passing the camera module. The avoidance hole extends to the edge of the light source mounting part away from the connecting part to form a non-closed hole.

[0023] The inventor discovered that the end of the current light source mounting part away from the connecting part is an open end, the end of the light source mounting part connected to the connecting part is a closed end, and the open end of the light source mounting part is a free end, which has low rigidity. When glue is injected into the front end shell, the glue will squeeze the free end of the light source mounting part, thereby causing the open end of the light source mounting part to deform, causing the light output direction of the light source to deviate.

[0024] As shown in FIG1 , the embodiment of the present application discloses a circuit structure of an endoscope, comprising a camera module mounting portion 200, a connecting portion 300, and a light source mounting portion 400. The camera module mounting portion 200 and the light source mounting portion 400 are spaced apart and opposite to each other, and the two ends of the connecting portion 300 are respectively connected to the camera module mounting portion 200 and the light source mounting portion 400. Specifically, the camera module 600 can be disposed on a side of the camera module mounting portion 200 facing the light source mounting portion 400, and the light source 800 can be disposed on a side of the light source mounting portion 400 facing away from the camera module mounting portion 200.

[0025] The light source mounting part 400 is provided with an avoidance hole 410 for the camera module 600 to pass through, that is, the avoidance hole 410 passes through the light source mounting part 400 along the thickness direction of the light source mounting part 400, and the avoidance hole 410 extends to the edge of one side of the light source mounting part 400, so that the light source mounting part 400 forms a closed end and an open end arranged back to back, and the open end is connected to the connecting part 300. The light source mounting part 400, the connecting part 300 and the camera module mounting part 200 surround and form a closed hollow area 110, and the hollow area 110 includes the avoidance hole 410. Specifically, the hollow region 110 extends onto the connecting portion 300 to form a hollow groove 310 on the connecting portion 300. The hollow groove 310 is connected to the avoidance hole 410. When installing the camera module 600, the camera module 600 can pass through the open end of the avoidance hole 410 and the hollow groove 310 of the connecting portion 300 to enter the avoidance hole 410 and the accommodating space 500 described below, thereby facilitating the installation of the camera module 600. It should be noted that the hollow region 110 may or may not extend to the camera module mounting portion 200.

[0026] In the embodiment of the present application, the open end of the light source mounting portion 400 is connected to the connecting portion 300, thereby indirectly connected to the camera module mounting portion 200, that is, the open end of the light source mounting portion 400 is not a free end, and the end of the light source mounting portion 400 away from the connecting portion 300 is a closed end, which is also not a free end. The light source mounting portion 400, the connecting portion 300 and the camera module mounting portion 200 extend along an annular closed contour and form the above-mentioned hollow area 110. Therefore, the circuit structure rigidity of this embodiment is relatively large, so that the light source mounting portion 400 can have a better ability to resist the extrusion of the glue. During the glue injection process, when the glue squeezes the light source mounting portion 400, the extrusion force exerted on the light source mounting portion 400 can be transmitted to the camera module mounting portion 200 through the above-mentioned closed contour, so as to enhance the ability of the light source mounting portion 200 to resist the extrusion of the glue, thereby reducing the risk of deformation of the light source mounting portion 400 and reducing the risk of deviation of the light output direction of the light source 800.

[0027] Optionally, the camera module mounting part 200, the connecting part 300 and the light source mounting part 400 can all be split structures, the avoidance hole 410 can be processed on the light source mounting part 400, and the hollow groove 310 can be processed on the connecting part 300. The camera module mounting part 200, the connecting part 300 and the light source mounting part 400 can be connected in sequence by welding, and the avoidance hole 410 and the hollow groove 310 can be connected to form at least part of the hollow area 110; it can be seen that in this embodiment, the light source mounting part 400 and the connecting part 300 need to be cut separately, that is, at least two cutting processes are required, and the processing process is relatively cumbersome.

[0028] In an optional embodiment, the circuit structure includes a substrate 100, which is provided with a hollow region 110. The substrate 100 is continuously bent to form a camera module mounting portion 200, a connecting portion 300, and a light source mounting portion 400. In this embodiment, the camera module mounting portion 200, the connecting portion 300, and the light source mounting portion 400 are formed by continuously bending the substrate 100. As such, only the hollow region 110 needs to be provided on the substrate 100, and the hollow region 110 is continuously bent to form a hollow groove 310 and an avoidance hole 410. In other words, this embodiment only requires a single cutting process, thereby simplifying the processing flow of the circuit structure.

[0029] In an optional embodiment, the edge of the connecting portion 300 away from the hollow region 110 is flush with the outer edge of the camera module mounting portion 200. If the edge of the connecting portion 300 away from the hollow region 110 is staggered with the outer edge of the camera module mounting portion 200, that is, there is a gap between the two, a step will be formed between the edge of the connecting portion 300 away from the hollow region 110 and the outer edge of the camera module mounting portion 200, which will increase the internal stress at the intersection between the edge of the connecting portion 300 away from the hollow region 110 and the camera module mounting portion 200. In this embodiment, the edge of the connecting portion 300 away from the hollow region 110 is flush with the outer edge of the camera module mounting portion 200, so no step is formed between the edge of the connecting portion 300 away from the hollow region 110 and the outer edge of the camera module mounting portion 200, thereby reducing the area of ​​stress concentration on the circuit structure and reducing the risk of damage to the circuit structure.

[0030] And / or, in an optional embodiment, the edge of the connecting portion 300 that faces away from the hollow region 110 is flush with the outer edge of the light source mounting portion 400. Similarly, in this embodiment, the edge of the connecting portion 300 that faces away from the hollow region 110 is flush with the outer edge of the light source mounting portion 400, so no step is formed between the edge of the connecting portion 300 that faces away from the hollow region 110 and the outer edge of the light source mounting portion 400, thereby reducing areas of stress concentration on the circuit structure and reducing the risk of damage to the circuit structure. Of course, the edge of the connecting portion 300 that faces away from the hollow region 110 may also be staggered with the outer edge of the light source mounting portion 400.

[0031] In an alternative embodiment, the width of the avoidance hole 410 gradually decreases as it extends from the open end to the closed end. In this embodiment, the width of the avoidance hole 410 is larger at the open end and smaller at the closed end, making it easier for the camera module 600 to enter the avoidance hole 410. Of course, the width of the avoidance hole 410 can also remain constant as it extends from the open end to the closed end.

[0032] In an optional embodiment, the portion of the inner wall of the avoidance hole 410 opposite to the open end is an arc surface convex in the direction away from the open end. Such a setting can increase the space inside the avoidance hole 410 to increase the layout space of the camera module 600; and the portion of the inner wall of the avoidance hole 410 opposite to the open end usually contacts the lens barrel of the camera module 600, so setting the portion as an arc surface is more suitable for the shape of the lens barrel to increase the contact area between the lens barrel and the inner wall of the avoidance hole 410, thereby reducing the pressure exerted by the inner wall of the avoidance hole 410 on the lens barrel.

[0033] In a further embodiment, the portion of the outer wall of the light source mounting portion 400 that faces away from the connecting portion 300 is a curved surface that convexly extends away from the connecting portion 300. In this embodiment, the portion of the outer wall of the light source mounting portion 400 that faces away from the connecting portion 300 is opposite to the portion of the inner wall of the avoidance hole 410 that faces the open end. Providing a curved surface for the portion of the outer wall of the light source mounting portion 400 that faces away from the connecting portion 300 can match the shape of the portion of the inner wall of the avoidance hole 410 that faces the open end, thereby increasing the wall thickness of the portion of the light source mounting portion 400 that faces away from the connecting portion 300 and enhancing the structural strength of the light source mounting portion 400. Providing a curved surface for the portion of the outer wall of the light source mounting portion 400 that faces away from the connecting portion 300 can also relieve internal stress, thereby preventing damage to the light source mounting portion 400.

[0034] As shown in Figures 2 to 4, an embodiment of the present application also discloses a front end component of an endoscope, including a camera module 600 and the circuit structure described in any of the above embodiments. The camera module mounting part 200, the connecting part 300 and the light source mounting part 400 are surrounded to form a accommodating space 500. The accommodating space 500 is located between the camera module mounting part 200 and the light source mounting part 400. The camera module 600 is arranged in the camera module mounting part 200. The first part of the camera module 600 is located in the accommodating space 500, and the second part of the camera module 600 is located in the avoidance hole 410. In an embodiment of the present application, the open end of the light source mounting portion 400 is connected to the connecting portion 300, and the end of the light source mounting portion 400 facing away from the connecting portion 300 is a closed end, which is not a free end and has relatively large rigidity. The light source mounting portion 400 of the present application has a better ability to resist the extrusion of the glue, so during the glue injection process, it can reduce the risk of deformation of the light source mounting portion 400 and the risk of deviation of the light output direction of the light source 800.

[0035] In an optional embodiment, the inner wall of the avoidance hole 410 has a first section 411, a second section 412 and a third section 413 connected in sequence, the first section 411 and the third section 413 are opposite to each other, the second section 412 and the open end are opposite to each other, the camera module 600 is in contact with the second section 412, the camera module 600 is in contact with one of the first section 411 and the third section 413, and there is a gap between the camera module 600 and the other of the first section 411 and the third section 413. In this embodiment, the camera module 600 is in contact with the second section 412 of the avoidance hole 410, and one of the first section 411 and the third section 413 at the same time. In this way, the camera module 600 can be positioned by relying on the first section 411 and the third section 413, and the second section 412, so that the camera module 600 is located at a preset position; and this embodiment can also increase the number of points at which the camera module 600 contacts the avoidance hole 410, thereby reducing the risk of the camera module 600 being deflected during glue injection; in addition, there is a gap between the camera module 600 and one of the first section 411 and the third section 413, that is, the width between the first section 411 and the third section 413 is greater than the width of the camera module 600, thereby facilitating the insertion of the camera module 600 into the avoidance hole 410. It should be noted that the second section 412 of the avoidance hole 410 is the portion of the inner wall of the avoidance hole 410 opposite to the open end, and may be a curved surface.

[0036] In an optional embodiment, the camera module 600 includes a lens mount 610, which is disposed on the camera module mounting portion 200. The front-end assembly further includes a support member 700, which is supported between the lens mount 610 and the light source mounting portion 400. In this embodiment, a support member 700 is provided between the lens mount 610 and the light source mounting portion 400. This increases the distance between the camera module mounting portion 200 and the light source mounting portion 400, thereby allowing the light source mounting portion 400 to be closer to the end face of the distal end of the front-end housing. This prevents the front-end housing from blocking light emitted by the light source 800 disposed on the light source mounting portion 400, thereby enhancing the fill light effect of the light source 800. It should be noted that the camera module 600 further includes a lens barrel connected to the lens mount 610, a portion of which is located within the avoidance hole 410.

[0037] In an optional embodiment, a notch 710 is provided on the support member 700, and the notch 710 extends to the edge of the support member 700 toward the connecting portion 300. A portion of the camera module 600 is located in the notch 710, and a latching protrusion 720 is provided on the inner wall of the notch 710, and the latching protrusion 720 is snap-fitted with the camera module 600. In this embodiment, the support member 700 is provided with a notch 710, which extends to the edge of the support member 700 facing the connecting portion 300. In other words, the support member 700 of this embodiment extends in an arc-shaped direction, which can increase the contact area between the support member 700 and the lens holder 610 and the light source mounting portion 400, respectively, thereby improving the support effect of the support member 700 on the light source mounting portion 400. In addition, the inner wall of the support member 700 is also provided with a locking protrusion 720, which can hold the camera module 600, so that the camera module 600 is stably installed in the circuit structure, further preventing the camera module 600 from deflecting during glue injection. Of course, the support member 700 can also be a flat member, in which case the support member 700 is provided on the side of the lens holder 610 away from the connecting portion 300.

[0038] The present application also discloses an endoscope, including the front-end assembly described in any of the above embodiments. The endoscope referred to in the present application can be a bronchoscope, pyeloscope, esophagoscope, gastroscope, enteroscope, otoscope, rhinoscope, oral mirror, laryngoscope, colposcope, laparoscope, arthroscope, etc. The present application does not impose any specific restrictions on the type of endoscope.

[0039] In an embodiment of the present application, the open end of the light source mounting portion is connected to the connecting portion, and the end of the light source mounting portion facing away from the connecting portion is a closed end, which is not a free end and has relatively large rigidity. The light source mounting portion of the present application has a better ability to resist the extrusion of the glue, so it can reduce the risk of deformation of the light source mounting portion during the glue injection process and reduce the risk of deviation of the light output direction of the light source.

[0040] The above embodiments of the present application focus on 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. The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of this application and the claims, all of which are within the protection of this application.

Claims

1. A circuit structure of an endoscope, characterized in that: The device comprises a camera module mounting portion (200), a connecting portion (300) and a light source mounting portion (400), wherein the camera module mounting portion (200) and the light source mounting portion (400) are spaced apart and face each other, and two ends of the connecting portion (300) are respectively connected to the camera module mounting portion (200) and the light source mounting portion (400). The light source mounting portion (400) is provided with an avoidance hole (410) for allowing the camera module (600) to pass through, and the avoidance hole (410) extends to the edge of one side of the light source mounting portion (400), so that the light source mounting portion (400) forms a closed end and an open end arranged in opposite directions, and the open end is connected to the connecting portion (300). The light source mounting portion (400), the connecting portion (300) and the camera module mounting portion (200) surround and form a closed hollow area (110), and the hollow area (110) includes the avoidance hole (410).

2. The circuit structure according to claim 1, wherein: The circuit structure comprises a substrate (100), the substrate (100) being provided with the hollowed-out area (110), and the substrate (100) being continuously bent to form the camera module mounting portion (200), the connecting portion (300), and the light source mounting portion (400).

3. The circuit structure according to claim 1, wherein: The edge of the connecting portion (300) facing away from the hollow area (110) is flush with the outer edge of the camera module mounting portion (200); and / or, The edge of the connecting portion (300) facing away from the hollow area (110) is flush with the outer edge of the light source mounting portion (400).

4. The circuit structure according to claim 1, wherein: In the direction extending from the open end to the closed end, the width of the avoidance hole (410) gradually decreases.

5. The circuit structure according to claim 1, wherein: The portion of the inner wall of the avoidance hole (410) opposite to the open end is a curved surface convex in a direction away from the open end; The portion of the outer wall of the light source mounting portion (400) that is away from the connecting portion (300) is a curved surface that bulges in a direction away from the connecting portion (300).

6. A front end assembly of an endoscope, characterized in that: The invention comprises a camera module (600) and a circuit structure according to any one of claims 1 to 5, wherein the camera module mounting portion (200), the connecting portion (300) and the light source mounting portion (400) surround and form a receiving space (500), and the receiving space (500) is located between the camera module mounting portion (200) and the light source mounting portion (400). The camera module (600) is provided on the camera module mounting portion (200), a first portion of the camera module (600) is located in the accommodating space (500), and a second portion of the camera module (600) is located in the avoidance hole (410).

7. The front end assembly according to claim 6, characterized in that The inner wall of the avoidance hole (410) comprises a first section (411), a second section (412) and a third section (413) connected in sequence, the first section (411) and the third section (413) are opposite to each other, and the second section (412) and the open end are opposite to each other. The camera module (600) is in contact with the second section (412), the camera module (600) is in contact with one of the first section (411) and the third section (413), and there is a gap between the camera module (600) and the other of the first section (411) and the third section (413).

8. The front end assembly according to claim 7, characterized in that The camera module (600) comprises a lens seat (610), wherein the lens seat (610) is arranged on the camera module mounting portion (200), and the front-end assembly further comprises a support member (700), wherein the support member (700) is supported and arranged between the lens seat (610) and the light source mounting portion (400).

9. The front end assembly according to claim 8, characterized in that The support member (700) is provided with a notch (710), the notch (710) extending to the edge of the support member (700) facing the connecting portion (300), a portion of the camera module (600) is located in the notch (710), and an inner wall of the notch (710) is provided with a convex portion (720), the convex portion (720) being engaged with the camera module (600).

10. An endoscope, characterized in that: Comprising a front end assembly as claimed in any one of claims 6 to 9.

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