Lens mount, capsule endoscope and system thereof

Abstract

The utility model discloses a lens mount, a capsule endoscope and a system thereof, the lens mount is used for the capsule endoscope, the capsule endoscope comprises a first circuit board, a first lens and an antenna, and the bottom of the lens mount is used for being fixed on the surface of the first circuit board. The lens seat comprises a base body extending in the circumferential direction and a fixing part arranged on the periphery of the radial outer side of the base body, a penetrating hole penetrating through the thickness direction of the base body is formed in the base body, the penetrating hole is used for allowing the first lens to penetrate through, and the fixing part and the base body extend in different directions. The antenna is used for being fixed on the surface of the fixing part. According to the technical scheme, the antenna is fixed in the peripheral direction of the lens, the cost is low, and implementation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a lens holder, a capsule endoscope and a capsule endoscope system. Background Art

[0002] Existing capsule endoscope cameras generally consist of a base and a lens barrel containing lenses. To reduce the volume of the camera, the lens barrel and the base are generally designed to be relatively simple.

[0003] When used in a single-camera capsule endoscope, the antenna in the capsule is usually placed at the bottom of the end of the capsule endoscope where no camera is provided, which will not affect the use of the camera.

[0004] However, in a capsule endoscope with cameras at both ends, since the antenna cannot block the viewing angle of the camera and signal attenuation occurs when the antenna is wound around the battery, the antenna can only be wound around one of the cameras. In this case, it is necessary to consider how to fix the antenna around the camera. Summary of the Utility Model

[0005] In order to solve the above technical problems existing in the prior art, the present application provides a lens holder, a capsule endoscope and a capsule endoscope system.

[0006] In the first aspect of the present application, a lens holder for a capsule endoscope is provided. The capsule endoscope includes a first circuit board, a first lens and an antenna. The bottom of the lens holder is used to be fixed on the surface of the first circuit board. The lens holder includes a base extending in the circumferential direction and a fixing portion provided on the outer peripheral edge in the radial direction of the base. The base is formed with a through hole penetrating in the thickness direction thereof, and the through hole is used for the first lens to pass through. The fixing portion extends in a different direction from the base, and the antenna is used to be fixed on the surface of the fixing portion.

[0007] In the second aspect of the present application, a capsule endoscope is provided, which includes a first circuit board, a first lens, an antenna and the lens holder as described above. The bottom of the lens holder is fixed on the surface of the first circuit board. The first lens passes through the through hole of the lens holder, and the antenna is fixed on the surface of the fixing portion of the lens holder.

[0008] In the third aspect of the present application, a capsule endoscope system is provided, which includes a client and the capsule endoscope as described above. The client is used to receive the images captured by the capsule endoscope.

[0009] The lens holder provided by the present application is used to carry the first lens, and a fixing portion for fixing the antenna is provided on the periphery of the lens holder, providing a technical solution for fixing the antenna in the circumferential direction of the lens, with low cost and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings are used to provide a further understanding of the embodiments of the present utility model, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present utility model, but do not constitute a limitation to the embodiments of the present utility model.

[0011] Figure 1 It is a schematic structural diagram of a capsule endoscope system provided for the embodiments of the present application;

[0012] Figure 2 For Figure 1 It is a schematic perspective view of the capsule endoscope shown;

[0013] Figure 3 For Figure 2 It is a schematic cross-sectional structure diagram of the capsule endoscope shown along line III-III;

[0014] Figure 4 For Figure 3 It is a schematic cross-sectional structure diagram of the first module in;

[0015] Figure 5 Figure 4 It is a schematic perspective view of the first module shown;

[0016] Figure 6 For Figure 4 It is a schematic perspective view of the lens holder shown;

[0017] Figure 7 For Figure 6 It is a schematic top view of the lens holder shown;

[0018] Figure 8 For Figure 6 It is a schematic perspective view of the lens holder from another angle shown;

[0019] Figure 9 For Figure 5 It is a schematic perspective view of the antenna in another embodiment shown;

[0020] Figure 10 For Figure 8 It is a schematic perspective view of the lens holder in another embodiment shown;

[0021] Figure 11 For Figure 3 It is a schematic cross-sectional structure diagram of the housing shown;

[0022] Figure 12 For Figure 11 It is a schematic exploded cross-sectional structure diagram of the housing shown;

[0023] Figure 13 For Figure 1 the schematic diagram of the capsule endoscope system shown for gastric examination. Specific embodiments

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data used can be interchanged under appropriate circumstances to describe the embodiments of this application.

[0026] In addition, the terms "installed", "set", "provided with", "projected", "connected", "connected to", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] It should be noted that, without conflict, the embodiments in this application and the specific technical solutions in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to detail this application.

[0028] This application provides a lens holder 100 for carrying a lens. Antennas are fixed around the lens holder 100. The lens holder 100 can be widely applied to multiple fields such as personal entertainment, professional photography, security monitoring, communication, traffic management, medical devices, etc., such as unmanned aerial vehicles (UAVs), security monitoring cameras, satellite TV receivers, wireless network cameras, intelligent transportation systems, vehicle-mounted camera systems, smart home devices, wireless video transmission systems, astronomical telescopes, mobile devices, capsule endoscopes, and so on. The following takes the lens holder 100 for a capsule endoscope as an example for illustration. It can be understood that the lens holder 100 can also be applied to other fields and products mentioned or not mentioned above.

[0029] This application provides a lens holder 100, including a capsule endoscope 10 of the lens holder 100, and a capsule endoscope system 1 including the capsule endoscope 10.

[0030] The lens mount provided by this application can be used in single-lens capsule endoscopes, dual-lens capsule endoscopes, and multi-lens capsule endoscopes.

[0031] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a capsule endoscope system 1 provided by an embodiment of this application. The capsule endoscope system 1 includes a capsule endoscope 10 and a client 20. In some embodiments, the client 20 can communicate with the capsule endoscope 10, and the client 20 is used to receive images captured by the capsule endoscope 10. In some embodiments, the client 20 can be used to receive user operation instructions and transmit control signals to the capsule endoscope 10 wirelessly. In some embodiments, the client 20 is only used to receive images captured by the capsule endoscope 10.

[0032] The client 20 can include, for example, at least one of a mobile phone, a wearable device, an Internet of Things device, a tablet computer, a computer with a wireless transceiver function, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal device in industrial control, and a wireless terminal device in remote surgery, but is not limited thereto.

[0033] Please refer to Figures 2 to 8 , the capsule endoscope 10 provided by this application includes a first circuit board 910, a first lens 950, an antenna 990, and a lens mount 100. The bottom of the lens mount 100 is used to be fixed on the surface of the first circuit board 910. The lens mount 100 includes a base body 110 extending in the circumferential direction and a fixing portion 130 provided on the radially outer periphery of the base body 110. The base body 110 is formed with a through hole 111 penetrating in its thickness direction, and the through hole 111 is used for the first lens 950 to pass through. The fixing portion 130 extends in a different direction from the base body 110, and the antenna 990 is used to be fixed on the surface of the fixing portion 130.

[0034] In the assembled capsule endoscope 10, the bottom of the lens mount 100 is fixed on the surface of the first circuit board 910, the first lens 950 passes through the through hole 111 of the lens mount 100, and the antenna 990 is fixed on the surface of the fixing portion 130 of the lens mount 100.

[0035] The lens mount 100 provided by this application is used to carry the first lens 950, and a fixing portion 130 for fixing the antenna 990 is provided on the periphery of the lens mount 100, providing a technical solution for fixing the antenna 990 in the circumferential direction of the lens. Moreover, the antenna 990 is fixed by using the fixing portion 130 provided on the periphery of the lens mount 100, which has a lower cost and is easy to implement.

[0036] As Figure 2 compared with Figure 3As shown, the capsule endoscope 10 includes two ends in the axial direction. One end corresponding to the first lens 950 is defined as the first end 101, and the end facing away from the first lens 950 is defined as the second end 102. The first circuit board 910 includes two side surfaces, one of which faces the first end 101 and the other faces the second end 102. The lens holder 100 is disposed on one side surface of the first circuit board 910 facing the first end 101, and the first lens 950 is also disposed on one side surface of the first circuit board 910 facing the first end 101. The first lens 950 is installed in the lens holder 100, and the light incident surface of the first lens 950 faces the first end 101, so that the external environment can be imaged from the direction of the first end 101.

[0037] Definition:

[0038] Axial direction: The direction parallel to the axis of the capsule endoscope 10. In this application, the axis of the capsule endoscope 10 is the direction of the line connecting the first end 101 and the second end 102.

[0039] Circumferential direction: Perpendicular to the axial direction and the direction around the axis.

[0040] Radial direction: Perpendicular to the axial direction and the straight-line direction along the diameter or radius of the capsule endoscope 10.

[0041] Without contradiction, in this application, the axial, circumferential, and radial directions of the capsule endoscope 10 and its internal components are all the same.

[0042] As Figures 3 to 6 shown, preferably, the base body 110 extends in the circumferential direction of the lens holder 100 and is annular. A through hole 111 penetrating in the thickness direction is formed in the region of the base body 110 away from its radially outer peripheral edge. The thickness direction of the base body 110 is the same as the axial direction of the base body 110, that is, the same as the axial direction of the capsule endoscope 10. In this embodiment, a through hole 111 penetrating up and down is formed at the geometric center of the base body 110 for the first lens 950 to pass through. The shape of the through hole 111 matches the side wall of the first lens 950. In this embodiment, the through hole 111 is circular. The outer periphery of the base body 110 can be set to any regular or irregular shape such as circular, elliptical, rectangular, hexagonal, octagonal, etc. according to needs.

[0043] The lens holder 100 includes a fixing portion 130 disposed on the periphery of the base body 110. The fixing portion 130 extends in a different direction from the base body 110, and the antenna 990 is used to be fixed on the surface of the fixing portion 130.

[0044] In Figures 3 to 6In the illustrated embodiment, the extending direction of the fixing portion 130 is perpendicular to the extending direction of the base body 110. If the extending direction of the base body 110 is defined as the horizontal direction, then the extending direction of the fixing portion 130 is the vertical direction. The fixing portion 130 is sheet-shaped, and the antenna 990 is used to wind and fix on the radially outer peripheral surface of the fixing portion 130.

[0045] The fixing portion 130 can also be in other shapes protruding in any direction from the base body 110. For example, the extending direction of the fixing portion 130 and the base body 110 can form an angle of 60°, 70°, 80°, 100°, 110° or other angles. The surface shape of the fixing portion 130 needs to match the shape of the antenna 990 so that the antenna 990 can be conveniently fixed on the surface of the fixing portion 130. In this embodiment, the antenna 990 is flexible and sheet-shaped, having good flexibility and plasticity. This enables the antenna 990 to be bent and fixed according to the capsule shape of the capsule endoscope 10 and the space limitation outside the peripheral edge of the lens holder 100, facilitating its integration into the capsule endoscope 10. In this embodiment, the flexible sheet-shaped antenna 990 is fixed on the surface of the fixing portion 130 by adhesion. As Figure 3 and Figure 4 shown, the antenna 990 is electrically connected to the first circuit board 910. A back adhesive is provided on one side surface of the antenna 990 facing the fixing portion 130, and the antenna 990 is fixed on the radially outer surface of the fixing portion 130 by the back adhesive.

[0046] In some other embodiments, the antenna 990 can also be fixed on the surface of the fixing portion 130 through structures such as card slots.

[0047] Specifically, as Figure 5 shown, the antenna 990 is an FPC antenna. The antenna 990 surrounds the lens holder 100 for one or less than one circle, facilitating the regular fixing of the antenna 990 on the surface of the fixing portion 130 and improving the assembly efficiency. If the antenna 990 surrounds the lens holder 100 for more than one circle, problems such as the FPC antenna being easily wound unevenly, having an irregular shape after winding, and low production efficiency are likely to occur.

[0048] As Figure 9 shown, in some embodiments, the antenna 990 includes a main body 992 and a winding end 994 connected to one end of the main body 992. The antenna 990 is wound around the peripheral edge of the lens holder 100 for more than one circle, and the winding end 994 overlaps with the main body 992 in the radial direction. Preferably, the overlapping part of the winding end 994 and the main body 992 in the radial direction is fixed by adhesion with a colloid.

[0049] As Figures 3 to 6As shown, the capsule endoscope 10 includes a second circuit board 920 electrically connected to the first circuit board 910. The first circuit board 910 and the second circuit board 920 can be electrically connected through a flexible circuit or FPC. A plurality of LEDs are arranged on the surface of the second circuit board 950 facing the first end 101, which are used for lighting during the process of the first lens 950 photographing the digestive tract. The second circuit board 920 is arranged on a side of the first circuit board 910 adjacent to the first end 101, and the lens holder 100 is sandwiched between the first circuit board 910 and the second circuit board 920. From the first end 101 to the second end 102, the second circuit board 920, the lens holder 100 and the first circuit board 910 are stacked in sequence.

[0050] like Figure 4 and Figure 6 As shown, the fixing portion 130 extends from the base 110 to at least one of the top side (the side facing the first end 101) and the bottom side (the side facing away from the first end 101) of the base 110, so that the antenna 990 can be conveniently fixed to the radial outer surface of the fixing portion 130. Preferably, the fixing portion 130 extends from the base 110 to the top side (the side facing the first end 101) of the base 110, thereby facilitating the bottom of the lens holder 100 to be fixed to the surface of the first circuit board 910. The first lens 950 passes through the through hole 111 and protrudes from the surface of the lens holder 100 facing the first end 101. The second circuit board 920 is formed with a positioning hole 921, and the portion of the first lens 950 facing the first end 101 is passed through the positioning hole 921, thereby positioning the second circuit board 920.

[0051] Preferably, the axial dimension (height) of the fixing portion 130 is between 0.5 and 2 mm. If the height is too small, the antenna 990 will not be firmly fixed, especially for the fixing by the bonding process, the bonding area is too small, and the antenna 990 is easy to fall off. If the height of the fixing portion 130 is too large, the lens holder 100 (an embodiment in which the second circuit board 920 is not provided) or the second circuit board 920 will block the viewing angle of the first lens 950.

[0052] like Figure 3 as well as Figure 4 As shown, the antenna 990 is disposed around the lens holder 100 and the circumference of the second circuit board 920, and the antenna 990 is adhered and fixed to the fixing portion 130 and the second circuit board 920. In some embodiments, the antenna 990 is only adhered to the periphery of the fixing portion 130.

[0053] In some embodiments, the number of the fixing portion 130 is one, and the fixing portion 130 is annular and protrudes from the base 110 and extends toward the first end 101 .

[0054] like Figure 6 and Figure 7As shown, in this embodiment, the number of the fixing portions 130 is multiple. The circumferential direction of the base body 110 includes clearance sections 112 and connecting sections 114 which are arranged alternately. The base body 110 forms a clearance groove 113 recessed from its radially outer peripheral edge to its radially inner side in the clearance section 112, and each fixing portion 130 is connected to the base body 110 in the corresponding connecting section 114.

[0055] That is, a plurality of fixing portions 130 are arranged at intervals on the peripheral edge of the base body 110. The section of the base body 110 connecting the fixing portions 130 is the connecting section 114, and the section of the peripheral edge of the base body 110 not connected to the fixing portions 130 is grooved to form the clearance section 112. The base body 110 forms a clearance groove 113 in each clearance section 112. The clearance groove 113 is recessed from the radially outer peripheral edge of the base body 110 towards its radially inner side, which is convenient for avoiding the devices on the first circuit board 910 and the second circuit board 920 and the operating tools during installation. Preferably, the number of the clearance grooves 113 is 2 to 10, and they are arranged symmetrically or evenly around the center of the base body 110 to ensure that the center of gravity of this part is at the center of the circle. As Figure 6 shown in Figure 7 shown, the shapes of different fixing portions 130 can be different. It can be understood that the shapes of the plurality of fixing portions 130 can be the same and they are evenly distributed on the peripheral edge of the base body 110. Correspondingly, the shapes of the clearance grooves 113 can be the same or different, and the positions of the clearance grooves 113 can be flexibly set according to needs.

[0056] As Figure 7 shown, preferably, the interval between adjacent fixing portions 130 is less than 90°, which is convenient for fixing the antenna 990 in multiple directions on the peripheral edge of the base body 110.

[0057] As Figures 2 to 6 shown, the lens holder 100 includes an annular adjusting portion 150. The adjusting portion 150 is connected to the radially inner peripheral edge of the base body 110 and encloses a through hole 111.

[0058] In this embodiment, the adjusting portion 150 protrudes from the surface of the base body 110 facing the first end 101. In some embodiments, the top surface of the adjusting portion 150 is flush with the top surface of the base body 110. The top surface of the lens holder 100 is used to support the second circuit board 920. In this embodiment, the top surface of the lens holder 100 is the top surface of the adjusting portion 150. The top surface of the adjusting portion 150 is higher than the top surface of the fixing portion 130, that is, the top surface of the adjusting portion 150 is farther from the top surface of the base body 110 than the top surface of the fixing portion 130, which is convenient for the adjusting portion 150 to stably support the second circuit board 920.

[0059] The radially inner surface of the adjusting part 150 is in threaded engagement with the outer surface of the side wall of the first lens 950 (not shown in the figure). The axial position of the first lens 950 relative to the lens holder 100 can be adjusted by the thread, and thus the focal length of the first lens 950 can be adjusted.

[0060] As Figure 4 and Figure 6 shown, a dispensing groove 151 is formed in the radially inner side of the top of the adjusting part 150. The side wall of the first lens 950 and the adjusting part 151 are adhesively fixed by dispensing glue in the dispensing groove 151. After the focal length of the first lens 950 is adjusted, UV glue or other glue is dispensed in the dispensing groove 151 to fix the first lens 950 and the lens holder 100, thereby preventing the first lens 950 from loosening relative to the lens holder 100 and causing a change in the focal length. It can also prevent the second circuit board 920 from pressing on the glue that fixes the adjusting part 150 and the first lens 950 to cause the second circuit board 920 to be unevenly installed and the situation that the first lens 950 is not centered with the LED illumination area.

[0061] As Figure 8 shown, the lens holder 100 includes a light-shielding part 170 provided on the bottom surface of the base body 110. The light-shielding part 170 is annular, and the light-shielding part 170 communicates with the adjusting part 150, that is, the channels formed by the annular light-shielding part 170 and the channels formed by the annular adjusting part 150 communicate with each other.

[0062] As Figure 3 and Figure 8 shown, the capsule endoscope 10 includes a photosensitive element 952. The bottom of the light-shielding part 170 is fixed to the surface of the first circuit board 910. The first circuit board 910, the light-shielding part 170 and the base body 110 enclose a light-shielding space 171. The photosensitive element 952 is arranged on the surface of the first circuit board 910 in the light-shielding space 171, so that the photosensitive element 952 can only obtain incident light through the first lens 950 in the adjusting part 150, avoiding external stray light from entering the photosensitive element 952. Preferably, the bottom of the lens holder 100 is adhesively bonded to the first circuit board 910 by glue, and the glue can be UV glue.

[0063] Preferably, a positioning post 173 protrudes from the bottom of the light-shielding portion 170. The positioning post 173 extends in a direction away from the base body 110. The positioning post 173 is used to be inserted into the first circuit board 910, facilitating accurately positioning the lens holder 100 on the surface of the first circuit board 910 along a preset direction before the light-shielding portion 170 is fixed to the first circuit board 910. On the one hand, it is convenient for the center of the photosensitive area of the photosensitive element 952 to be aligned with the center of the adjusting portion 150 and the center of the first lens 950, improving the centering of the captured image and avoiding the situation where the center of the photosensitive area is eccentric after being assembled with the first lens 950, resulting in the captured image not being centered. On the other hand, setting the positioning post 173 also facilitates the clearance groove 113 to be aligned with the devices and tools that need clearance.

[0064] As Figure 10 shown, in some embodiments, the lens holder 100 is provided with a positioning post 173, facilitating the lens holder 100 to be assembled in accordance with a preset direction, avoiding the lens holder 100 being installed on the first circuit board 190 after rotating a certain angle relative to the preset direction, and ensuring that the photosensitive area of the photosensitive element 952 is roughly centered with the first lens 950.

[0065] Furthermore, the light-shielding portion 170 includes a plurality of positioning portions 175. The positioning portions 175 form a positioning groove 176. The positioning groove 176 is used to accommodate the periphery of the photosensitive element 952. Preferably, the positioning groove 176 is used to fit the periphery of the photosensitive element 952, so that the soldering error of the photosensitive chip 952 will not affect the centering between the photosensitive area and the lens holder 100, further improving the accuracy of centering between the photosensitive area of the photosensitive element 952 and the first lens 950. In Figure 10 the illustrated embodiment, the light-shielding portion 170 includes two oppositely arranged positioning portions 175. Further, the lens holder 100 can rely on the positioning groove 176 to clamp the diagonal corners of the photosensitive chip 952, thereby accurately positioning the position of the lens holder 100 and ensuring the accurate centering between the photosensitive area of the photosensitive element 952 and the first lens 950.

[0066] In some embodiments, the light-shielding portion 170 is provided with a positioning portion 175 and no positioning post 173 is provided.

[0067] As Figure 4 With Figure 7 shown, the light-shielding portion 170 is used to be adhesively fixed to the first circuit board 910. A pressing area 115 is provided on the top surface of the base body 110. The pressing area 115 is used to receive pressing during the process of adhesively fixing the light-shielding portion 170, which is beneficial for the bottom of the lens holder 100 to fit onto the surface of the first circuit board 910 for fixing, avoiding the problem that the lens holder 100 and the first lens 950 are installed obliquely when the lens holder 100 is adhesively fixed to the first circuit board 910 without being fully fitted to the first circuit board 910.

[0068] The pressing area 115 can be used to receive manual pressing or pressing by device components. For example, the light-shielding part 170 is cured to the first circuit board 910 using UV glue, and the fixture in the ultraviolet curing equipment can press on the pressing area 115, thereby ensuring that the light-shielding part 170 and the first circuit board 910 are well-fitted and fixed.

[0069] To facilitate the application of force by the fixture, the radial dimension of the pressing area 115 is between 1 - 5 mm. As Figure 7 shown, in this embodiment, the pressing area 115 is circular, and its radial dimension is its diameter. In other embodiments, the pressing area 115 can be other regular or irregular shapes, and its radial dimension is the maximum dimension of the pressing area 115 in the form of a planar figure, such as the diagonal length of a rectangular pressing area or the major axis length of an elliptical pressing area. The surface of the pressing area 115 can be frosted or formed with specific identification patterns.

[0070] As Figure 4 shown, the first circuit board 910, the second circuit board 920, the lens holder 100, and the first lens 950 are fixed by bonding. First step, insert the positioning post 173 at the bottom of the lens holder 100 into the corresponding hole of the first circuit board 910, and bond the periphery around the bottom of the light-shielding part 170 to the first circuit board 910. Second step, adjust the axial position of the first lens 950 in the lens holder 100, and bond and fix the first lens 950 to the lens holder 100. Third step, buckle the second circuit board 920 on the top of the lens holder 950, the top of the first lens 950 passes through the positioning hole 921 of the second circuit board 920, and bond and fix the side wall of the first lens 950 to the second circuit board 920, thereby realizing the mutual fixation among the first circuit board 910, the lens holder 100, the second circuit board 920, and the first lens 950.

[0071] Preferably, the diameter of the lens holder 100 and the diameter of the second circuit board 920 differ by ±0.3 mm, so that the periphery of the lens holder 100 and the periphery of the second circuit board 920 are roughly flush in the radial direction. When the antenna 990 is fixed to the surface of the lens holder 100, it will not interfere with the second circuit board 920, and it is also convenient to fix the antenna 990 to the lens holder 100 and the second circuit board 920, improving the fixing strength.

[0072] As Figure 2 With Figure 3As shown, the capsule endoscope 10 includes a dual-lens. Specifically, the capsule endoscope 10 includes a first module 11 and a second module 12. Both the first module 11 and the second module 12 are used to capture the external environment of the capsule endoscope 10. The first module 11 and the second module 12 are respectively arranged at one end of the capsule endoscope 10. The first module 11 is arranged at the first end 101 of the capsule endoscope 10, and the second module 12 is arranged at the second end 102 of the capsule endoscope 10.

[0073] As Figure 3 and Figure 11 As shown, the first module 11 includes a first circuit board 910, a second circuit board 920, a first lens 950, a lens holder 100, and an antenna 990. The second module 12 includes a third circuit board 930 and a second lens 960. The second lens 960 is arranged on one side surface of the third circuit board 930. The first circuit board 910 is electrically connected to the third circuit board 930. The first lens 950 and the second lens 960 are arranged at the axial two ends of the capsule endoscope 10 in opposite directions. The first lens 950 and the second lens 960 are arranged in opposite directions, which means that the light incident surfaces of the first lens 950 and the second lens 960 face opposite directions. Specifically, the light incident surface of the first lens 950 faces the first end 101, and the light incident surface of the second lens 960 faces the second end 102.

[0074] Specifically, the structure of the second module 12 is similar to that of the first module 11, and the second module 12 does not include an antenna. The second module 12 further includes a fourth circuit board 940 and a lens holder 200. In the direction from the second end 102 to the first end 101, the fourth circuit board 940, the lens holder 200, and the third circuit board 930 are arranged in sequence. The structure of the lens holder 200 can be the same as or different from that of the lens holder 100. An LED is arranged on the surface of the fourth circuit board 940 facing the second end 102, and is used to illuminate the shooting area during the shooting process of the second lens 960.

[0075] The capsule endoscope 10 includes a housing 800. The housing 800 includes a tubular middle section 810, and a first transparent cover 830 and a second transparent cover 850 respectively connected to one end of the middle section 810. Both the first transparent cover 830 and the second transparent cover 850 are transparent, or at least partially transparent, to facilitate light transmission.

[0076] The first transparent cover 830 is arranged corresponding to the first module 11, and the second transparent cover 850 is arranged corresponding to the second module 12. A limiting groove 801 is formed at the connection between the first transparent cover 830 and the middle section 810, and the periphery of the first circuit board 910 is clamped in the limiting groove 801.

[0077] As Figure 3As shown, the first transparent cover 830 and the second transparent cover 850 are respectively disposed at one end of the middle section 810. The first transparent cover 830 is disposed corresponding to the first lens 950 of the first module 11, and the second transparent cover 850 is disposed corresponding to the second lens 960 of the second module 12, so that the first lens 950 receives the incident light passing through the first transparent cover 830 for image capture, and the second lens 960 receives the incident light passing through the second transparent cover 850 for image capture.

[0078] like Figure 11 and Figure 12 As shown, a limiting groove 801 is formed at the connection between the first transparent cover 830 and the middle section 810 , and the periphery of the first circuit board 910 is clamped in the limiting groove 801 , thereby achieving the positioning of the first circuit board 910 by the housing 800 .

[0079] In this embodiment, the first transparent cover 830 and the middle section 810 are buckled and connected to each other, and the second transparent cover 850 and the middle section 810 are buckled and connected to each other. Figure 11 As shown, the first transparent cover 830 is connected to one end of the middle section 810 to form a first step groove 831, and correspondingly, the middle section 810 is connected to one end of the first transparent cover 830 to form a second step groove 812. During the mutual assembly process of the middle section 810 and the first transparent cover 830, the first step groove 831 and the second step groove 812 are mutually engaged in the axial direction, and a limiting groove 801 with an opening facing the radial inner side of the capsule endoscope 10 is formed in the first step groove 831. The axial dimension of the limiting groove 801 matches the peripheral thickness of the first circuit board 910. During the assembly process, the edge of the first circuit board 910 is placed on the end surface of the middle section 810 facing the first transparent cover 830, the first transparent cover 830 is engaged in the direction of the middle section 810, and at least part of the peripheral edge of the first circuit board 910 is accommodated in the limiting groove 801. Preferably, after the middle section 810 is fastened to the first transparent cover 830, the limiting groove 801 clamps the first circuit board 910 in the axial direction of the capsule endoscope 10, and the end of the first transparent cover 830 can roughly fill the second step groove 812 of the middle section 810. Preferably, the radial outer surface of the first transparent cover 830 and the middle section 810 are fixed by laser welding or bonding.

[0080] In this embodiment, the first transparent cover 830 is provided with a first step groove 831 on its radial inner side, and the middle section 810 is provided with a step groove 812 on its radial outer side, so as to facilitate the buckling of the first transparent cover 830 after the first module 11 is placed at the end position of the middle section 810. In a modified embodiment, the first step groove 831 is provided on the radial outer side of the first transparent cover 830, and the step groove 812 is provided on the radial inner side of the middle section 810.

[0081] In the change implementation mode, the first transparent cover 830, the middle section 810, and the second transparent cover 850 are sequentially connected by threads, by snap fits, or by other means.

[0082] The first circuit board 910 and the third circuit board 930 are connected by a flexible circuit board. In some implementation modes, the first circuit board 910 and the third circuit board 930 are connected by a flexible wire. Since one side of both the first circuit board 910 and the third circuit board 930 faces the end of the capsule endoscope 10, and they are connected by a flexible circuit board, the flexible circuit board is bent at the connection with the first circuit board 910 and the third circuit board 930, and has a tendency to return to a straight state, acting on the third circuit board 930 to make it have a tendency to extend axially along the capsule endoscope 10.

[0083] As Figure 3 , Figure 11 and Figure 12 shown, the middle section 810 includes a body 811 and a limiting portion 813. The body 811 is tubular, and the limiting portion 813 is arranged at one end of the body 811 connected to the second transparent cover 850. The limiting portion 813 protrudes from the inner surface of the body 811 towards the radially inner direction of the body 811. The limiting portion 813 abuts against the surface of the third circuit board 930 facing the second end 102, thereby avoiding the situation where the third circuit 930 flips in the axial direction of the capsule endoscope 10 due to the stress of the flexible circuit board acting on the third circuit board 930. The stress of the flexible circuit board can block the movement of the third circuit board 930 towards the first end 101. In the opposite direction, the limiting portion 813 is used to block the third circuit board 930 from flipping towards the second end 102, thereby ensuring that the third circuit board 930 can be stably positioned axially on the capsule endoscope 10.

[0084] Preferably, the limiting portion 813 is sheet-shaped and forms a ring around the circumference of the capsule endoscope 10. It can be understood that in some implementation modes, the middle section 810 includes a plurality of limiting portions 813 that are discretely distributed in the circumferential direction of the capsule endoscope 10, and each limiting portion 813 occupies a preset arc range in the circumferential direction of the capsule endoscope 10. In some implementation modes, the cross-section of the limiting portion 813 is in a regular or irregular shape such as a circle, an ellipse, or a hexagon.

[0085] As Figure 3As shown, the capsule endoscope 10 includes a magnet 970 disposed between the first circuit board 910 and the third circuit board 930. The magnet 970 is eccentrically arranged in the capsule endoscope 10, that is, the geometric center of the magnet 970 does not overlap with the geometric center of the capsule endoscope 10 axially. Specifically, in this embodiment, the magnet 970 is disposed near the second end 102 in the capsule endoscope 10, which is beneficial to increasing the magnetic field strength on the surface of one end (the second end 102 in this application) of the capsule endoscope 10 close to the magnet 970, improving the magnetic control sensitivity of one end of the capsule endoscope 10, and expanding the magnetic control range. It is convenient to use the second lens 960 corresponding to the second end 102 to take close-up shots of the details of the biological digestive tract, and use the first lens 950 corresponding to the first end 101 to take overall or long-distance views of the biological digestive tract.

[0086] A battery 980 is disposed between the magnet 970 and the first circuit board 910 in the capsule endoscope 10. Both ends of the battery 980 can be electrically connected to the first circuit board 910 and the third circuit board 930 respectively to supply power to each component in the capsule endoscope 10.

[0087] In this embodiment, the magnet 970 is cylindrically clamped between the battery 980 and the third circuit board 980. It can be understood that the magnet 970 can be set to other regular or irregular shapes.

[0088] As Figure 13 As shown, in some embodiments, the capsule endoscope system 1, in addition to including the capsule endoscope 10 and the client 20, further includes an external magnetic control device 30. The client 9 is used to receive the images taken by the capsule endoscope 10 through the first lens 950. The client 9 can be used to transmit user instructions to the capsule endoscope 10. The external magnetic control device 30 can provide magnetic force to control the attitude and position of the capsule endoscope 10. The client 9 can be used to control the external magnetic control device 30 to guide the movement of the capsule endoscope 10.

[0089] Preferably, compared with water of equal volume, the capsule endoscope 10 weighs 0 - 0.4 g. Furthermore, the density of the capsule endoscope 10 is close to the density of water, which is convenient to control the position and attitude of the capsule endoscope 10 in the digestive tract by magnetic force. The density of the capsule endoscope 10 is slightly larger than that of water, which is beneficial to the capsule endoscope 10 diving into body fluids to take pictures of the digestive tract, ensuring the shooting quality, and only a small magnetic force is required to adjust the attitude and position of the capsule endoscope 10, which is convenient for manipulation.

[0090] The optional embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0091] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the embodiments of the present invention will not separately describe various possible combination methods.

[0092] Furthermore, any combination can be made among the various different embodiments of the present invention as long as it does not violate the idea of the embodiments of the present invention, and it should also be regarded as the content disclosed by the embodiments of the present invention.

Claims

1. A lens holder for a capsule endoscope, the capsule endoscope comprising a first circuit board, a first lens and an antenna, characterized in that: The bottom of the lens mount is used to be fixed on the surface of the first circuit board. The lens mount includes a base extending in the circumferential direction and a fixing portion arranged on the radial outer periphery of the base. The base is formed with a through hole running through its thickness direction. The through hole is used for the first lens to be inserted therein. The fixing portion and the base extend in different directions, and the antenna is used to be fixed on the surface of the fixing portion.

2. The lens mount according to claim 1, wherein: The base is annular, the extending direction of the fixing portion is perpendicular to the extending direction of the base, the fixing portion is sheet-shaped, and the antenna is flexible sheet-shaped and is used to be wound around and fixed to the radial periphery of the fixing portion.

3. The lens mount according to claim 2, wherein: The fixing portion extends from the base toward at least one of the top side and the bottom side of the base, and the antenna is used to be bonded and fixed to a surface of the fixing portion.

4. The lens mount according to claim 3, wherein: The number of the fixing portion is one, and the fixing portion is annular; or There are multiple fixing parts, and the base includes alternately arranged avoidance sections and connecting sections in the circumferential direction. The base forms avoidance grooves in the avoidance sections that are recessed from the radial outer periphery to the radial inner side. Each fixing part is connected to the base in the corresponding connecting section.

5. The lens mount according to claim 3, wherein: The axial dimension of the fixing portion is between 0.5 and 2 mm.

6. The lens mount according to claim 3, wherein: There are multiple fixing parts, and the base includes alternately arranged avoidance sections and connecting sections in the circumferential direction. The base forms avoidance grooves in the avoidance sections that are recessed from the radial outer periphery to the radial inner side. Each fixing part is connected to the base in the corresponding connecting section, and the interval between adjacent fixing parts is less than 90°.

7. The lens mount according to any one of claims 2 to 6, characterized in that: The lens mount comprises a ring-shaped adjusting portion, which is connected to the radial inner peripheral edge of the base body and surrounds the through hole.

8. The lens mount according to claim 7, wherein: The capsule endoscope comprises a second circuit board electrically connected to the first circuit board, the second circuit board is arranged on a side of the first circuit board adjacent to the end of the capsule endoscope, the lens holder is used to be sandwiched between the first circuit board and the second circuit board, the top surface of the adjusting portion protrudes from the surface of the base, and the top surface of the adjusting portion is used to support the second circuit board; The radial inner surface of the adjustment part is threadedly matched with the outer surface of the side wall of the first lens, and a glue dispensing groove is formed on the radial inner side of the top of the adjustment part. The adjustment part and the first lens are used to be bonded and fixed by dispensing glue in the glue dispensing groove.

9. The lens mount according to claim 7, wherein: The lens holder includes a light-shielding portion arranged on the bottom surface of the base, the light-shielding portion is annular, and the light-shielding portion is connected to the adjustment portion. The capsule endoscope includes a photosensitive element. The bottom of the light-shielding portion is fixed to the surface of the first circuit board. The first circuit board, the light-shielding portion and the base form a light-shielding space. The photosensitive element is arranged on the surface of the first circuit board in the light-shielding space. A positioning column is protruding from the bottom of the light-shielding portion, and the positioning column is used to be inserted into the first circuit board.

10. The lens mount according to claim 9, wherein: The light shielding portion is used for bonding and fixing to the first circuit board, and a pressing area is provided on the top surface of the base body, and the pressing area is used for receiving pressing during the bonding process of the light shielding portion.

11. The lens mount according to claim 10, wherein: The radial dimension of the pressing area is between 1-5 mm.

12. The lens mount according to claim 9, wherein: The light shielding portion includes a positioning portion, the positioning portion forms a positioning groove, and the positioning groove is used to accommodate the periphery of the photosensitive element.

13. A capsule endoscope, characterized in that: It includes a first circuit board, a first lens, an antenna and a lens mount as described in any one of claims 1 to 12, wherein the bottom of the lens mount is fixed to the surface of the first circuit board, the first lens is inserted into the insertion hole of the lens mount, and the antenna is fixed to the surface of the fixed part of the lens mount.

14. The capsule endoscope according to claim 13, characterized in that: The capsule endoscope includes a second circuit board electrically connected to the first circuit board, the second circuit board is arranged on a side of the first circuit board adjacent to the end of the capsule endoscope, the lens holder is clamped between the first circuit board and the second circuit board, the second circuit board is formed with a positioning hole, the first lens is inserted into the positioning hole, the top surface of the lens holder is used to support the second circuit board, the side wall of the first lens is bonded and fixed to the second circuit board, the antenna is arranged around the lens holder and the circumferential direction of the second circuit board, and the antenna is glued and fixed to the fixing portion.

15. The capsule endoscope according to any one of claims 13 to 14, characterized in that: The antenna is an FPC antenna, and the FPC antenna is arranged around the lens holder in one circle or less than one circle.

16. The capsule endoscope according to claim 14, characterized in that: The diameter of the lens mount differs from the diameter of the second circuit board by ±0.3 mm.

17. The capsule endoscope according to claim 14, characterized in that: The capsule endoscope comprises a first module and a second module, the first module comprises the first circuit board, the second circuit board, the first lens, the lens holder and the antenna, the second module comprises a third circuit board and a second lens, the second lens is arranged on a side surface of the third circuit board, the first circuit board is electrically connected to the third circuit board, and the first lens and the second lens are arranged opposite to each other at two axial ends of the capsule endoscope; The capsule endoscope comprises a shell, the shell comprises a tubular middle section, and a first transparent cover and a second transparent cover respectively connected to one end of the middle section, the first transparent cover is arranged corresponding to the first module, the second transparent cover is arranged corresponding to the second module, a limiting groove is formed at the connection between the first transparent cover and the middle section, and the periphery of the first circuit board is clamped in the limiting groove; The first circuit board and the third circuit board are connected via a flexible circuit board; The middle section includes a body and a limiting portion, the body is tubular, the limiting portion is arranged at one end of the body connected to the second transparent cover, the limiting portion protrudes from the inner surface of the body toward the radial inner side of the body, and the limiting portion abuts against the surface of the third circuit board facing the second transparent cover.

18. The capsule endoscope according to claim 14, characterized in that: The capsule endoscope comprises a first module and a second module, the first module comprises the first circuit board, the second circuit board, the first lens, the lens holder and the antenna, the second module comprises a third circuit board and a second lens, the second lens is arranged on a side surface of the third circuit board, the first circuit board is electrically connected to the third circuit board, and the first lens and the second lens are arranged opposite to each other at two axial ends of the capsule endoscope; The capsule endoscope comprises a magnet located between the first circuit board and the third circuit board, wherein the magnet is eccentrically arranged in the capsule endoscope.

19. The capsule endoscope according to any one of claims 13 to 14, characterized in that: The capsule endoscope weighs 0-0.4 g compared with an equal volume of water.

20. A capsule endoscope system, characterized in that: It comprises a client and a capsule endoscope as described in any one of claims 13 to 19, wherein the client is used to receive images taken by the capsule endoscope.

Images