Endoscope and circuit structure and front end assembly thereof

Abstract

The utility model 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 connecting part and a light source mounting part, the camera module mounting part and the light source mounting part are arranged at an interval and are opposite, the two ends of the connecting part are connected with the camera module mounting part and the light source mounting part respectively, and an avoiding hole is formed in the light source mounting part and extends to the edge of one side of the light source mounting part. The light source mounting part is provided with a closed end and an open end which are arranged back to back, the open end is connected with the connecting part, the light source mounting part, the connecting part and the camera module mounting part surround to form a closed hollow area, and the hollow area comprises an avoiding hole. The open end of the light source mounting part is connected with the connecting part, the end, away from the connecting part, of the light source mounting part is the closed end instead of the free end, the rigidity is relatively large, and therefore in the glue injection process, the risk of deformation of the light source mounting part can be reduced, and the risk of deflection of the light emitting direction of the light source can be reduced.

Description

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. It is an inspection instrument that can directly enter the natural channels of the human body and provide doctors with sufficient diagnostic information to treat diseases. The endoscope includes a front-end component that can enter the human body through a human cavity or a surgical incision.

[0003] The front-end assembly usually includes a front-end shell, a camera module, a light source and a flexible circuit board. The camera module and the light source are both arranged on the flexible circuit board. The flexible circuit board is first positioned in the front-end shell and then fixed by injection. However, the current flexible circuit board is prone to deformation during the injection process, which will cause the light emitting direction of the light source to deviate, thereby reducing the lighting effect and the quality of framing. 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 component, 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, including 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 arranged at intervals and opposite to each other, and 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, and 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, and 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 a receiving space, and the receiving 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, including a front end assembly.

[0011] In the embodiment of the present application, the open end of the light source mounting part is connected to the connecting part, and thus indirectly connected to the camera module mounting part, that is, the open end of the light source mounting part is not a free end, and the end of the light source mounting part away from the connecting part is a closed end, which is also not a free end. The light source mounting part, the connecting part and the camera module mounting part extend along the annular 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 part 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 part, the extrusion force exerted on the light source mounting part can be transmitted to the camera module mounting part through the above-mentioned closed contour to enhance the ability of the light source mounting part to resist the extrusion of the glue, thereby reducing the risk of deformation of the light source mounting part and reducing the risk of deviation of the light emitting direction of the light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the circuit structure disclosed in the embodiment of the present application;

[0013] Figure 2 The structure of the front-end component disclosed in the embodiment of this application is shown in FIG. Figure 1 ;

[0014] Figure 3 The structure of the front-end component disclosed in the embodiment of this application is shown in FIG. Figure 2 ;

[0015] Figure 4 This is a schematic diagram of the structure of the support member disclosed in the embodiment of the present application.

[0016] Description of reference numerals:

[0017] 100, substrate; 110, hollow area; 200, camera module mounting part; 300, connecting part; 310, hollow groove; 400, light source mounting part; 410, avoidance hole; 411, first section; 412, second section; 413, third section; 500, accommodating space; 600, camera module; 610, lens holder; 700, supporting member; 710, notch; 720, convex part; 800, light source. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are 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 creative work are within the scope of protection of this application.

[0019] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0020] The endoscope and its circuit structure and front-end components provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in combination 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 emitting direction of the light source to deviate.

[0024] like Figure 1 As shown, the embodiment of the present application discloses a circuit structure of an endoscope, including a camera module mounting part 200, a connecting part 300 and a light source mounting part 400, wherein the camera module mounting part 200 and the light source mounting part 400 are arranged at intervals and opposite to each other, and the two ends of the connecting part 300 are respectively connected to the camera module mounting part 200 and the light source mounting part 400. Specifically, the camera module 600 can be arranged on a side of the camera module mounting part 200 facing the light source mounting part 400, and the light source 800 can be arranged on a side of the light source mounting part 400 facing away from the camera module mounting part 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 penetrates 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 area 110 extends to the connecting portion 300 to form a hollow groove 310 on the connecting portion 300, and 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, so as to facilitate the installation of the camera module 600. It should be noted that the hollow area 110 may extend to the camera module mounting portion 200, 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 part 400 is connected to the connecting part 300, thereby indirectly connected to the camera module mounting part 200, that is, the open end of the light source mounting part 400 is not a free end, and the end of the light source mounting part 400 away from the connecting part 300 is a closed end, which is also not a free end. The light source mounting part 400, the connecting part 300 and the camera module mounting part 200 extend along the 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 part 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 part 400, the extrusion force on the light source mounting part 400 can be transmitted to the camera module mounting part 200 through the above-mentioned closed contour to enhance the ability of the light source mounting part 200 to resist the extrusion of the glue, thereby reducing the risk of deformation of the light source mounting part 400 and reducing the risk of the light output direction of the light source 800 being deflected.

[0027] Optionally, the camera module mounting part 200, the connecting part 300 and the light source mounting part 400 may all be split structures, the avoidance hole 410 may be processed on the light source mounting part 400, and the hollow groove 310 may be processed on the connecting part 300, the camera module mounting part 200, the connecting part 300 and the light source mounting part 400 may be connected in sequence by welding, and the avoidance hole 410 and the hollow groove 310 may 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 flow is relatively complicated.

[0028] In an optional embodiment, the circuit structure includes a substrate 100, a hollow area 110 is provided on the substrate 100, and 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, so that only the hollow area 110 needs to be opened on the substrate 100, and the hollow area 110 is continuously bent to form a hollow groove 310 and an avoidance hole 410, that is, this embodiment only needs to perform a cutting process once, thereby simplifying the processing flow of the circuit structure.

[0029] In an optional embodiment, the edge of the connection part 300 away from the hollow area 110 is flush with the outer edge of the camera module mounting part 200. If the edge of the connection part 300 away from the hollow area 110 is staggered with the outer edge of the camera module mounting part 200, that is, there is a gap between the two, a step will be formed between the edge of the connection part 300 away from the hollow area 110 and the outer edge of the camera module mounting part 200, which will increase the internal stress at the intersection between the edge of the connection part 300 away from the hollow area 110 and the camera module mounting part 200. In this embodiment, the edge of the connection part 300 away from the hollow area 110 is flush with the outer edge of the camera module mounting part 200, so no step will be formed between the edge of the connection part 300 away from the hollow area 110 and the outer edge of the camera module mounting part 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 away from the hollow area 110 is flush with the outer edge of the light source mounting portion 400. Similarly, the edge of the connecting portion 300 away from the hollow area 110 of the present embodiment 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 away from the hollow area 110 and the outer edge of the light source mounting portion 400, thereby reducing the area 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 away from the hollow area 110 can also be staggered with the outer edge of the light source mounting portion 400.

[0031] In an optional embodiment, the width of the avoidance hole 410 gradually decreases in the direction extending from the open end to the closed end. In this embodiment, the width of the open end of the avoidance hole 410 is larger, and the width of the closed end of the avoidance hole 410 is smaller, so that the camera module 600 can enter the avoidance hole 410 more easily. Of course, in the direction extending from the open end to the closed end, the width of the avoidance hole 410 can also remain unchanged.

[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 to an arc surface is more suitable for the shape of the lens barrel, so as 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 part 400 away from the connecting part 300 is a curved surface convex in a direction away from the connecting part 300. In this embodiment, the portion of the outer wall of the light source mounting part 400 away from the connecting part 300 is opposite to the portion of the inner wall of the avoidance hole 410 opposite to the open end. The portion of the outer wall of the light source mounting part 400 away from the connecting part 300 is set as a curved surface to match the shape of the portion of the inner wall of the avoidance hole 410 opposite to the open end, thereby increasing the wall thickness of the portion of the light source mounting part 400 away from the connecting part 300 to increase the structural strength of the light source mounting part 400; and the portion of the outer wall of the light source mounting part 400 away from the connecting part 300 is set as a curved surface to release internal stress to prevent the light source mounting part 400 from being damaged.

[0034] like Figures 2 to 4 As shown, the embodiment of the present application also discloses a front end assembly 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 surround to form a receiving space 500, the receiving 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 receiving space 500, and the second part of the camera module 600 is located in the avoidance hole 410. In the embodiment of the present application, the open end of the light source mounting part 400 is connected to the connecting part 300, and the end of the light source mounting part 400 away from the connecting part 300 is a closed end, which is not a free end, and has relatively large rigidity. The light source mounting part 400 of the present application has a better ability to resist the extrusion of the glue liquid, so in the process of glue injection, the risk of deformation of the light source mounting part 400 can be reduced, and the risk of deflection of the light output direction of the light source 800 can be reduced.

[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, one of 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 a portion of the inner wall of the avoidance hole 410 opposite to the open end, which may be a curved surface.

[0036] In an optional embodiment, the camera module 600 includes a lens holder 610, which is disposed on the camera module mounting portion 200, and the front-end assembly further includes a support member 700, which is supported between the lens holder 610 and the light source mounting portion 400. In this embodiment, a support member 700 is disposed between the lens holder 610 and the light source mounting portion 400, so that the distance between the camera module mounting portion 200 and the light source mounting portion 400 can be increased, so that the light source mounting portion 400 can be closer to the end surface of the distal end of the front-end shell, which can prevent the front-end shell from blocking the light emitted by the light source 800 disposed on the light source mounting portion 400, so as to enhance 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 holder 610, and a portion of the lens barrel is located in 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 facing the connecting portion 300. A portion of the camera module 600 is located in the notch 710. The inner wall of the notch 710 is provided with a latching protrusion 720, and the latching protrusion 720 is latched together with the camera module 600. In this embodiment, the support member 700 is provided with a notch 710, and the notch 710 extends to the edge of the support member 700 facing the connecting portion 300, that is, the support member 700 of this embodiment extends in an arc 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 supporting 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 clamping protrusion 720, and the clamping protrusion 720 can clamp the camera module 600, so that the camera module 600 is stably installed on the circuit structure, and further prevent the camera module 600 from being deflected during the injection of glue. Of course, the support member 700 can also be a flat member, in which case the support member 700 is arranged 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, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The present application does not specifically limit the type of the endoscope.

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

[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 enlightenment of the present application, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present application and the claims, all of which are within the protection of the present application.

Claims

1. A circuit structure of an endoscope, characterized in that: The invention comprises a camera module mounting part (200), a connecting part (300) and a light source mounting part (400), wherein the camera module mounting part (200) and the light source mounting part (400) are arranged at an interval and face each other, and two ends of the connecting part (300) are respectively connected to the camera module mounting part (200) and the light source mounting part (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, characterized in that: The circuit structure comprises a substrate (100), the substrate (100) being provided with the hollow 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, characterized in that: 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, characterized in that: 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, characterized in that: 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 installation portion (400) that is away from the connection portion (300) is a curved surface that bulges in a direction away from the connection 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 arranged on the camera module installation 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).

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) which are 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), and the notch (710) extends 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). The inner wall of the notch (710) is provided with a convex portion (720), and the convex portion (720) is snap-fitted 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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