CN216956519U

CN216956519U - Endoscope with light source

Info

Publication number: CN216956519U
Application number: CN202220326897.7U
Authority: CN
Inventors: 陈威漳; 宋元劭
Original assignee: Ruitai Shengyi Technology Hong Kong Co ltd
Current assignee: Zhongguancun Technology Leasing Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-07-12
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses an endoscope with a light source, which is characterized by comprising: the light source assembly comprises a flexible substrate and a light source arranged on the flexible substrate, the flexible substrate comprises a top surface part, a connecting part and a side surface part, the top surface part and the side surface part are connected through the connecting part, the top surface part is not parallel to the side surface part, the light source is at least arranged on the side surface part, and the top surface part is provided with an opening; the light shield is arranged outside the light source assembly and covers the light source; the camera assembly is arranged at the inner side of the light source assembly, and one end of the camera assembly passes through the opening and is adjacent to the photomask for obtaining an image; the functional pipeline is arranged at the inner side of the light source assembly, and one end of the functional pipeline passes through the opening and is adjacent to the light shield. The endoscope with the light source solves the problem that the light source placing space in a compact space is not enough by using the mode of arranging the light source on the flexible substrate, can increase the number of the light sources and improve the elasticity of the light source configuration, and can achieve the effect of increasing the illumination intensity.

Description

Endoscope with light source

[ technical field ] A method for producing a semiconductor device

The present invention relates to an endoscope, and more particularly, to an endoscope including a light source.

[ background of the utility model ]

Endoscopes are now available on the market for many different medical, industrial or other applications, and generally require a small volume and more than adequate illumination. When the illumination provided by the light source is insufficient, the camera cannot accurately and effectively acquire images.

However, in the limited inner space of the endoscope, the light source with sufficient brightness cannot be provided, and besides the insufficient number of light sources, the light emitting angle that the light source can provide is limited. One solution is to use an externally connected rear light source to provide light, and to use light-conducting materials such as optical fibers to guide the light into the endoscope. However, such a rear-end light source has problems of large volume, insufficient portability, and power consumption. In addition, the light-emitting mode of the optical fiber is still limited in light-emitting angle, so that the illumination is uneven and dead angles exist. The endoscope has such a limitation that the developability is greatly affected.

Therefore, in view of the above-mentioned technical problems, there is a need to provide a new technical solution for an endoscope light source to overcome the aforementioned disadvantages.

[ Utility model ] content

The utility model provides an endoscope with a light source, which is provided with a plurality of light sources by utilizing a flexible substrate and can increase the number of the light sources and the illumination intensity.

An endoscope having a light source according to the present invention includes: the light source assembly comprises a flexible substrate and a plurality of light sources arranged on the flexible substrate, the flexible substrate comprises a top surface part, a connecting part and a side surface part, the top surface part and the side surface part are connected through the connecting part, the top surface part is not parallel to the side surface part, the plurality of light sources are at least arranged on the side surface part, and the top surface part is provided with a plurality of holes; the light cover is arranged outside the light source assembly and covers the plurality of light sources; the camera assembly is arranged on the inner side of the light source assembly, one end of the camera assembly penetrates through one of the openings and is positioned at a position adjacent to the photomask, and the camera assembly is used for acquiring an image; and at least one functional pipeline arranged inside the light source assembly, wherein one end of the at least one functional pipeline penetrates through another one of the plurality of openings and is positioned at a position adjacent to the photomask.

The endoscope having the light source of the present invention has the following advantageous effects:

according to the endoscope with the light source, the light source can be selectively placed at different positions by arranging the light source on the flexible substrate, so that the problem of insufficient light source placing space in a compact space is solved, the number and the illumination of the light source can be increased, the flexibility of light source configuration can be improved, and the endoscope is beneficial to being applied to different application scenes.

[ description of the drawings ]

Fig. 1 is a perspective view of an endoscope provided with a light source according to an embodiment of the present invention.

Fig. 2 is an exploded view of the endoscope of fig. 1 provided with a light source.

FIG. 3 is a front view of the light source assembly of FIG. 2.

Fig. 4 is a perspective view of a light source assembly.

FIG. 5 is a side view of a light source assembly.

Fig. 6 is an expanded schematic view of the flexible substrate of fig. 2.

Fig. 7 is an expanded view of a flexible substrate according to another embodiment of the present invention.

Fig. 8 is a perspective view of the assembled components other than the mask of fig. 2.

Fig. 9 is a perspective view of another perspective view of fig. 8.

FIG. 10 is a perspective view of a mask according to an embodiment of the utility model.

FIG. 11 is a schematic view of a mask disposed outside a light source assembly.

Fig. 12 is a cross-sectional view along AA' of fig. 11.

FIG. 13 is a schematic view of the fixing base and the mask of FIG. 11 after being fixed in a butt joint manner.

FIG. 14 is a cross-sectional view of the endoscope with respect to the position of the camera assembly.

FIG. 15 is a cross-sectional view of the endoscope at a location corresponding to the functional conduit.

Description of the reference numerals

Endoscope 1 light source assembly 11

Flexible substrate 110'

The top surface 111 has an opening 111a

Side surface 113 of connecting part 112

Side part 113' body 1131

First side 1131a of body 1131

First side 1131 a' and second side 1131b

Second side 1131 b' ring arm 1132

Ring arm 1132' tab 1133

Tab 1133' light source 115

Window 13a of mask 13

Through hole 13b stripe groove 131

Slope 131a fixing seat 15

Sleeve portion 151 snap-fit portion 153

Raised bar 1531 camera assembly 16

Functional pipe 17 power and signal line 18

Tube 19 section line AA'

Direction Z

[ detailed description ] embodiments

The following description will further explain the technical means taken by the utility model to achieve the object of the predetermined utility model, in conjunction with the accompanying drawings and the specific embodiments of the utility model. It will be understood by those skilled in the art that directional terms, such as up, down, left, right, front or rear, etc., provided in connection with particular embodiments of the utility model are used for convenience in description and not for limitation of the utility model, with reference to the accompanying drawings. In addition, without departing from the spirit and scope of the present invention, a person skilled in the art of the present invention can make numerous changes and modifications, and the embodiments derived therefrom will fall within the scope of the present invention.

The embodiment of the utility model provides an endoscope with a light source, the light source can be selectively placed at different positions in the endoscope by arranging the light source on the flexible substrate, the problem of insufficient light source placing space in a compact space is solved, the number of the light sources can be increased, the elasticity of the light source configuration can be further improved by placing the light sources at different parts of the flexible substrate, the effect of increasing the illumination intensity can be achieved, and the endoscope is more beneficial to being applied to different application scenes.

Referring to fig. 1 to 5, fig. 1 is a perspective view of an endoscope having a light source according to an embodiment of the present invention, fig. 2 is an exploded view of the endoscope having the light source of fig. 1, fig. 3 is a front view of the light source assembly of fig. 2, fig. 4 is a perspective view of the light source assembly, and fig. 5 is a side view of the light source assembly. It should be noted that the endoscope 1 with a light source may be used for medical purposes, industrial, environmental, precision mechanical inspection, manufacturing, or other purposes, and as long as there is a need to capture images in a limited space, the light source needs to provide enough illumination for the camera to capture color, black and white, laser, infrared, or other wavelength images, which is a range that the endoscope 1 with a light source according to the embodiment of the present invention can be applied.

The endoscope 1 with a light source of the present embodiment is characterized by comprising: light source assembly 11, light shield 13, camera assembly 16 and at least one functional duct 17. The light source assembly 11 includes a flexible substrate 110 and a plurality of light sources 115 disposed on the flexible substrate 110, the flexible substrate 110 includes a top surface portion 111, a connecting portion 112, and a side surface portion 113, the top surface portion 111 and the side surface portion 113 are connected by the connecting portion 112, the top surface portion 111 is not parallel to the side surface portion 113, the plurality of light sources 115 are disposed on at least the side surface portion 113, and the top surface portion 111 has a plurality of openings 111 a. The light shield 13 is disposed outside the light source assembly 11 and covers the plurality of light sources 115. The camera assembly 16 is disposed inside the light source assembly 11, and one end of the camera assembly 16 passes through one of the openings 111a and is located adjacent to the mask 13 for capturing an image. At least one functional duct 17 is disposed inside the light source assembly 11, and one end of the at least one functional duct 17 passes through another one of the openings 111a and is located adjacent to the mask 13.

The endoscope 1 having the light source further includes a tube 19, one end of the tube 19 is abutted against the mask 13, and the other end extends to the outside of the endoscope 1. The tube 19 is a hollow tube that can be bent, and a plurality of cables, pipes, etc. inside the endoscope 1 are all inserted into the tube 19. The characteristics of the tube 19 such as material and structure are not limited in the present invention.

The flexible substrate 110 of the present embodiment is, for example, a Flexible Printed Circuit (FPC), and includes the top surface portion 111, the connecting portion 112, and the side surface portion 113, where the side surface portion 113 is perpendicular to the top surface portion 111 (as shown in fig. 5), that is, the light source 115 disposed on the top surface portion 111, and the light emitting direction is perpendicular to the light emitting direction of the light source 115 disposed on the side surface portion 113, so as to achieve a side light source design. In the present embodiment, the light source 115 is disposed on both the top surface portion 111 and the side surface portion 113 of the flexible substrate 110, and the light source 115 emits light toward the front (direction Z in fig. 1, 4, and 5) and the side surface (direction perpendicular to Z in fig. 1, 4, and 5) of the endoscope 1. In addition, in order to achieve a good vertical bending degree of the top surface portion 111 and the side surface portion 113, the connecting portion 112 has a U-shaped bending structure, as shown in fig. 5.

Referring to fig. 3 to 6, fig. 6 is an expanded schematic view of the flexible substrate of fig. 2. In this embodiment, the side surface portion 113 includes a body 1131 and a pair of ring arms 1132, a first side 1131a of the body 1131 is connected to the connecting portion 112, a pair of second sides 1131b of the body 1131 are respectively connected to the pair of ring arms 1132, the pair of ring arms 1132 extend in opposite directions and are used for surrounding the top surface portion 111, and the plurality of light sources 115 arranged on the ring arms 1132 are arranged around the top surface portion 111, so as to achieve the design of a side annular light source, as shown in fig. 4 and 5. The length of the ring arm 1132 is not limited to a large extent, and in different embodiments, the length of the left ring arm 1132 may be greater than the length of the right ring arm 1132, or the length of the left ring arm 1132 may be smaller than the length of the right ring arm 1132, and the length of the ring arm 1132 may be changed according to the requirements of an actual product, and it is within the scope of the present invention that the light source 115 can be arranged along the side surface of the endoscope 1, so that the light source 115 can emit light from the side surface direction (the direction perpendicular to z).

In addition, one of the ring arms 1132 has a tab 1133, which extends from the ring arm 1132 in a direction opposite to the connecting portion 112 and the top portion 111 for electrically connecting with the power and signal line 18 (the power and signal line 18 is shown in fig. 2, and the tab 1133 is connected with the power and signal line 18 and is shown in fig. 9) so as to provide power and/or signals for the plurality of light sources 115. The tabs 1133 help facilitate the soldering of the power and signal lines 18 during assembly of the endoscope 1, and serve as access ports for power and/or signals to the flexible substrate 110. In various embodiments, each of the ring arms 1132 may be provided with one tab 1133 for connecting to the power and signal lines 18, and various configurations of the power and signal lines 18 and one or more tabs 1133 are also contemplated, as long as the tab 1133 serves as the power and/or signal inlet.

Fig. 7 is an expanded schematic view of a flexible substrate according to another embodiment of the utility model. The flexible substrate 110 ' of this embodiment includes a top portion 111, a connecting portion 112, and a side portion 113 ', and the side portion 113 ' includes a body 1131 ' and a ring arm 1132 ', a first side 1131a ' of the body 1131 ' is connected to the connecting portion 112, a second side 1131b ' of the body 1131 ' is connected to the ring arm 1132 ', and the ring arm 1132 ' is configured to surround the top portion 111. Embodiments include a ring arm 1132' that individually surrounds the top surface 111 to allow the plurality of light sources 115 to be positioned. Similarly, the length of the ring arm 1132 'may be adjusted according to actual requirements, for example, the length of the ring arm 1132' may be changed according to the number and density of the light sources 115 to be placed. In addition, the ring arm 1132 ' has a tab 1133 ' extending from the ring arm 1132 ' in a direction opposite to the connecting portion 112 and the top portion 111 for electrically connecting to the power and signal line 18. In various embodiments, the ring arm 1132 'may be provided with a plurality of tabs 1133' respectively connected to the power and signal lines 18. It is within the scope of the present invention to have various power and signal lines 18 and different arrangements of one or more tabs 1133 ', so long as the tabs 1133' serve as power and/or signal entry ports.

According to the light source assembly 11 of the embodiment of the utility model, the flexible substrate 110 is a flexible printed circuit board, the top surface portion 111 is perpendicular to the side surface portion 113 through the bent connecting portion 112, and the ring arm 1132 is bent around the top surface portion 111, so that the light source 115 arranged thereon can emit light to the side of the endoscope 1, thereby achieving the design of a side ring light source. In an embodiment of the utility model, LEDs may be used as the plurality of light sources 115, and different types of light sources 115 may be disposed on the flexible substrate 110, for example, the visible light LED light source 115 is disposed on the top surface portion 111, the infrared light LED light source 115 is disposed on the side surface portion 113, or the infrared light LED light source 115 is disposed on the top surface portion 111, and the visible light LED light source 115 is disposed on the side surface portion 113, or the visible light LED light source 115 and the infrared light LED light source 115 are disposed on the top surface portion 111 and/or on the side surface portion 113 at the same time. The number and distribution of the light sources 115 are not limited to those shown in fig. 2 to 5, and a plurality of light sources 115 may be provided in one or more of the top surface 111 and the side surface 113, and may be applied to the endoscope 1 according to the embodiment of the present invention, so that the space for providing the light sources 115 is increased, and the flexibility of the arrangement of the light sources 115 is improved.

Referring to fig. 2, 8 and 9, fig. 8 is a perspective view of the assembled components except the mask of fig. 2, and fig. 9 is a perspective view of the other angle of view of fig. 8. The endoscope 1 with the light source of the present embodiment further includes a fixing base 15, the fixing base 15 has a sleeve portion 151, and the sleeve portion 151 is inserted into the light source assembly 11 to abut against the main body 1131 and the ring arm 1132 of the top surface portion 111 and the side surface portion 113, thereby providing support. The fixing base 15 further has a clamping portion 153, and the surface of the clamping portion 153 has a plurality of parallel raised strips 1531, which are respectively inserted into and clamped with the plurality of strip-shaped grooves on the mask 13, so that the fixing base 15 and the mask 13 are fixed in a butt joint manner. The manner in which the tabs 1133 are connected to the power and signal lines 18 is also shown in fig. 9.

Referring to fig. 10 to 12, fig. 10 is a perspective view of a mask according to an embodiment of the utility model, fig. 11 is a schematic view of the mask disposed outside a light source assembly, and fig. 12 is a cross-sectional view of fig. 11 along AA'. The light shield 13 is in a sleeve shape with one closed end, and has a plurality of parallel strip-shaped grooves 131 distributed on the inner side of the light shield 13, the bottom end of each strip-shaped groove 131 is an inclined surface 131a, the position of the inclined surface 131a corresponds to at least one of the plurality of light sources 115, and an acute angle is formed between the inclined surface 131a and the corresponding light-emitting surface 115a of the light source 115. The inclined surface 131a of the light shield 13 can change the direction of the light, so that the light emitted from the side can move forward (as shown by the dotted arrow in fig. 12), thereby increasing the illumination of the light emitted from the front of the endoscope 1. Of course, the arrangement of the inclined surface 131a not only limits the light to be emitted from the front, but also in different embodiments, the inclined surface 131a can allow the light to be emitted from the side surface from different angles, so as to improve the dispersion degree of the light emitted from the side surface of the light source 115, or improve the uniformity of the light emitted from the side surface of the light source 115. In this embodiment, the inclined surfaces 131a of the plurality of stripe-shaped grooves 131 have the same inclination angle, but in different embodiments, the inclined surfaces 131a may be divided into a plurality of groups with different inclination angles, and the inclination angles may be changed according to the product requirements. In this embodiment, the plurality of inclined surfaces 131a on the optical cover 13 are arranged at equal intervals along the side surface of the sleeve shape, and correspondingly guide the light emitted from the plurality of light sources 115 which emit light from the side surface of the sleeve shape to form an annular light guide structure, thereby achieving an effect of annular light guide at 360 degrees.

Referring to fig. 13, the fixing base is illustrated after being abutted and fixed with the mask of fig. 11. As mentioned above, the surface of the clamping portion 153 of the fixing base 15 has the parallel protruding strips 1531, which are inserted into and clamped with the strip-shaped grooves 131, respectively, so that the fixing base 15 and the mask 13 are fixed in a butt joint manner.

Referring to fig. 10, 14 and 15, fig. 14 is a sectional view of the endoscope corresponding to the position of the camera assembly, and fig. 15 is a sectional view of the endoscope corresponding to the position of the functional conduit. The mask 13 of the present embodiment can be made of, for example, a transparent or translucent material and manufactured by an integral forming process, the mask 13 is used for allowing the light of the light source 115 to pass through for illumination, and simultaneously, the light of the light source 115 can be mixed for making the light more uniform. The mask 13 also serves to fix and protect a plurality of components disposed inside. The mask 13 has a window 13a and at least one through hole 13b, the window 13a corresponds to the position of the camera assembly 16, and the mask 13 has a thinner thickness at the position of the window 13a, so that the camera assembly 16 can obtain images through the window 13 a. The at least one through hole 13b corresponds to a position of the at least one functional pipe 18, so that the at least one functional pipe 18 is communicated with the outside of the mask 13. More specifically, the functional tube 18 is abutted to the through hole 13b, and functional instruments and/or functional fluids provided by the rear end device pass through the functional tube 18 and the through hole 13b and move out of the light shield 13. The functional device described herein may be a clamp, a clip, a knife, a scissors or the like for medical or industrial use, and the functional fluid may be a variety of gases, such as inert gases or other applicable gases or liquids, for medical or industrial use, for filling irrigation.

In the embodiment, the mask 13 is exemplified to have a window 13a and two through holes 13b, and the endoscope 1 correspondingly includes two functional tubes 18 respectively connected to the two through holes 13b, wherein one functional tube 18 is used for providing a functional apparatus, and the other functional tube 18 is used for providing a functional fluid.

According to the endoscope 1 shown in fig. 1 to 15 described in the foregoing embodiment, since the camera assembly 16, the functional pipes 18, and other components need to be disposed in the endoscope 1, in order to allow the components to pass through the flexible substrate 110, the top surface portion 111 of the flexible substrate 110 cannot be used for disposing all the light sources 115, and thus the number of the light sources 115 disposed on the top surface portion 111 is reduced, but the flexible substrate 110 according to the embodiment of the present invention employs the side surface portions 113 to dispose the light sources 115, so that the phenomenon of insufficient number of the light sources 115 and illumination on the bottom top surface portion 111 can be compensated.

In accordance with the above detailed description of various embodiments of the present invention, there is provided an endoscope including a light source, comprising: light source assembly, light shield, camera assembly and at least one functional duct. The light source assembly comprises a flexible substrate and a plurality of light sources arranged on the flexible substrate, the flexible substrate comprises a top surface portion, a connecting portion and a side surface portion, the top surface portion and the side surface portion are connected through the connecting portion, the top surface portion is not parallel to the side surface portion, the plurality of light sources are at least arranged on the side surface portion, and the top surface portion is provided with a plurality of holes. The light shield is arranged outside the light source assembly and covers the plurality of light sources. The camera assembly is arranged on the inner side of the light source assembly, and one end of the camera assembly penetrates through one of the openings and is located at a position adjacent to the photomask to obtain an image. The functional pipeline is arranged on the inner side of the light source assembly, and one end of the at least one functional pipeline penetrates through another one of the openings and is located at a position adjacent to the light cover. According to the endoscope with the light source, the light source is selectively placed at different positions by arranging the light source on the flexible substrate, the problem that the light source placement space in a compact space is insufficient is solved, the number of the light sources can be increased, the elasticity of the light source configuration can be further improved by placing the light sources at different parts of the flexible substrate, the effect of increasing the illumination intensity can be achieved, and the endoscope is more beneficial to being applied to different application scenes.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above embodiments, it should be understood that the present invention is not limited to the above embodiments, and any person skilled in the art should be able to make modifications or equivalent variations using the above disclosed technical content without departing from the technical scope of the present invention, but any simple modification, equivalent variation and modification made to the above embodiments according to the essential core technology of the present invention are all within the technical scope of the present invention.

Claims

1. An endoscope provided with a light source, comprising:

the light source assembly comprises a flexible substrate and a plurality of light sources arranged on the flexible substrate, wherein the flexible substrate comprises a top surface part, a connecting part and a side surface part, the top surface part and the side surface part are connected through the connecting part, the top surface part is not parallel to the side surface part, the plurality of light sources are at least arranged on the side surface part, and the top surface part is provided with a plurality of holes;

the light cover is arranged outside the light source assembly and covers the plurality of light sources;

the camera assembly is arranged on the inner side of the light source assembly, one end of the camera assembly penetrates through one of the openings and is positioned at a position adjacent to the photomask, and the camera assembly is used for acquiring an image;

and the functional pipeline is arranged at the inner side of the light source assembly, and one end of the functional pipeline penetrates through the other of the plurality of openings and is positioned at a position adjacent to the photomask.

2. An endoscope having a light source according to claim 1, characterized in that: side portion contains body and ring arm, the first side of body connect in connecting portion, the second side of body connect in the ring arm, the ring arm centers on top portion, wherein set up on the ring arm a plurality of light sources center on the configuration of top portion.

3. An endoscope having a light source according to claim 2, characterized in that: the ring arm has a tab for electrically connecting to a power line and/or a signal line to provide power and/or signals to the plurality of light sources.

4. An endoscope having a light source according to claim 2, characterized in that: the light source assembly further comprises a fixed seat, wherein the fixed seat is provided with a sleeve part which is inserted into the inner side of the light source assembly and is used for enabling the body of the top surface part and the side surface part and the ring arm to abut against each other so as to provide support.

5. An endoscope having a light source according to claim 1, characterized in that: side contains body and a pair of ring arm, the first side of body connect in connecting portion, a pair of second side of body connect respectively in to the ring arm, to the ring arm along opposite direction extension and around the top surface portion, wherein set up and be in to the ring arm a plurality of light sources center on the configuration of top surface portion.

6. An endoscope having a light source according to claim 1, characterized in that: the light shield is in a sleeve shape with one closed end and is provided with a plurality of parallel strip-shaped grooves which are distributed on the inner side of the light shield, the bottom end of each strip-shaped groove is an inclined plane, the position of each inclined plane corresponds to at least one of the light sources, and an acute angle is formed between each inclined plane and the corresponding light emergent surface of the light source.

7. An endoscope having a light source according to claim 6, characterized in that: the light shield is characterized by further comprising a fixed seat, wherein the fixed seat is provided with a clamping portion, the surface of the clamping portion is provided with a plurality of parallel raised strips which are correspondingly inserted into and clamped with the plurality of strip-shaped grooves respectively, and therefore the fixed seat and the light shield are fixedly butted.

8. An endoscope having a light source according to claim 1, wherein: the side surface portion is perpendicular to the top surface portion.

9. An endoscope having a light source according to claim 1, characterized in that: the connecting part is provided with a U-shaped bending structure.

10. An endoscope having a light source according to claim 1, characterized in that: the light shield is provided with at least one through hole corresponding to the position of the at least one functional pipeline, and the at least one functional pipeline is communicated with the outer side of the light shield.