Lens structure and endoscope

Abstract

The utility model relates to the technical field of medical lenses, and particularly discloses a lens structure and an endoscope, the lens structure comprises a lens mount, a camera module and an illumination module; the lens seat is provided with a first end and a second end which are oppositely arranged, the lens seat is provided with a mounting hole and a working channel which extend from the first end to the second end, the mounting hole and the working channel are arranged at an interval, the working channel is used for being communicated with a working pipeline of an endoscope, a groove is formed in the side wall of the lens seat, and a mounting step is formed on the groove wall, close to the second end, of the groove; the camera module is arranged in the mounting hole; the lighting module is arranged on the installation step. According to the lens structure, the mounting hole is formed in the lens seat, so that the camera module is convenient to mount, the mounting step is arranged, so that the lighting module is convenient to mount, and the working channel which is spaced from the mounting hole is formed in the lens seat, so that the working channel is directly formed in the lens seat. Therefore, according to the lens structure, the number of parts is reduced, the size is reduced, and the assembling convenience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lens for medical use, in particular to a lens structure and an endoscope. BACKGROUND

[0002] An endoscope is a medical instrument used for observing internal organs or tissues of human body, and is widely applied to medical diagnosis and treatment. Since the endoscope works inside human body and micro-invasive surgery is performed inside human body, an illumination module such as an LED lamp needs to be arranged for illumination, and a working channel for surgical instruments needs to be arranged.

[0003] At present, the lens of the endoscope is of a common square or circular structure, the lens barrel of the lens generally only has the function of fixing the camera module, the illumination module needs to be fixed by an additional support, the working channel needs to be formed by a soft plate and glue, and the positional relationship between the camera module and the working channel needs to be limited by a sleeve. Therefore, the lens of the endoscope has many parts, large size and complex assembly. CONTENT OF THE INVENTION

[0004] In view of the above, it is necessary to provide a lens structure and an endoscope to reduce the number of parts, reduce the size and improve the convenience of assembly.

[0005] The lens structure provided by the embodiment of the present application is applied to an endoscope including a working pipeline, and includes a lens seat, a camera module and an illumination module. The lens seat has oppositely arranged first and second ends. The lens seat is provided with a mounting hole extending from the first end to the second end and a working channel. The mounting hole and the working channel are arranged at intervals. The working channel is used for communication with the working pipeline. A groove is arranged on the side wall of the lens seat. A groove wall of the groove close to the second end forms a mounting step. The camera module is arranged in the mounting hole. The illumination module is arranged on the mounting step.

[0006] The lens structure of the embodiment of the present application is provided with the mounting hole on the lens seat, which is convenient for mounting the camera module. The mounting step is arranged, which is convenient for mounting the illumination module. The illumination module does not need to be fixed by an additional support. The working channel arranged at intervals with the mounting hole is formed on the lens seat, which does not need to be formed by a soft plate and glue. The positional relationship between the working channel and the camera module is fixed, which does not need to be limited by a sleeve. Therefore, the lens structure of the embodiment of the present application reduces the number of parts, reduces the size and improves the convenience of assembly.

[0007] In some embodiments, the mounting step is provided with an avoiding slot, which is communicated with the side of the second end away from the first end; the lighting module comprises a lighting member and a flexible circuit board, the lighting member is arranged on the mounting step, one end of the flexible circuit board is electrically connected with the lighting member, and the other end of the flexible circuit board passes through the avoiding slot and extends towards the side of the second end away from the first end.

[0008] In this way, by arranging the avoiding slot, the flexible circuit board of the lighting module can pass through, and the flexible circuit board of the lighting module is prevented from protruding from the side wall of the lens seat to scratch the human tissue.

[0009] In some embodiments, along the extension direction of the mounting step, the two ends of the avoiding slot extend to the two ends of the mounting step, respectively.

[0010] In this way, the size of the avoiding slot is large, and the avoiding slot is facilitated to be filled with glue.

[0011] In some embodiments, the lens structure further comprises a first adhesive, which is arranged in the groove and seals the lighting module, and the side wall of the first adhesive located at the slot opening of the groove is arc-shaped.

[0012] In this way, by arranging the first adhesive to seal the lighting module, the lighting module is effectively prevented from falling off or being damaged in the human body, thereby improving the safety of the endoscope. By arranging the side wall of the first adhesive located at the slot opening of the groove to be arc-shaped, the probability of the first adhesive scratching the human tissue is reduced.

[0013] In some embodiments, the groove is communicated with the side of the first end away from the second end.

[0014] In this way, the groove is facilitated to be filled with glue to form the first adhesive, and the side wall of the first adhesive located at the slot opening of the groove is facilitated to be formed.

[0015] In some embodiments, the lens seat has a connecting arc surface, which is arranged around the working channel, and the connecting arc surface is connected with the side wall of the first adhesive located at the slot opening of the groove.

[0016] In this way, by arranging the connecting arc surface, the side wall of the lens seat and the side wall of the first adhesive located at the slot opening of the groove are arc-shaped, and no sharp edges are formed, thereby reducing the probability of the lens structure scratching the human tissue.

[0017] In some embodiments, the lens structure further comprises a tip, which is arranged on the second end, the tip is provided with a insertion hole, the insertion hole is arranged opposite to and communicated with the working channel, and the insertion hole is used for inserting the working pipeline to communicate the working channel with the working pipeline.

[0018] Thus, by setting the front head, the lens structure is facilitated to be connected with the working pipeline, and the accuracy of the communication between the working channel and the working pipeline is improved.

[0019] In some embodiments, the second end is provided with a first positioning part on one side away from the first end, the front head is provided with a second positioning part on one side close to the second end, and the first positioning part and the second positioning part are inserted and positioned.

[0020] Thus, by setting the first positioning part and the second positioning part to be inserted and positioned, the accuracy of the connection between the front head and the lens seat is improved, and thus the accuracy of the communication between the working channel and the working pipeline is improved.

[0021] In some embodiments, the front head is provided with a receiving groove in communication with the insertion hole on one side close to the second end; the lens structure further comprises a circuit board assembly and a second adhesive, the circuit board assembly is arranged in the receiving groove and electrically connected with the camera module, and the second adhesive is arranged in the receiving groove and connected with the circuit board assembly and the groove wall of the receiving groove, respectively.

[0022] Thus, by arranging the circuit board assembly in the receiving groove, the mounting hole is only considered to mount the camera module in the design, so as to facilitate to reduce the size of the mounting hole, and thus facilitate to reduce the size of the lens seat. By arranging the second adhesive, the circuit board assembly is facilitated to be fixed and sealed, so as to reduce the probability of falling off and damage of the circuit board assembly.

[0023] The embodiment of the present application also provides an endoscope comprising a working pipeline and the lens structure as described above.

[0024] The endoscope provided by the embodiment of the present application is facilitated to be miniaturized and cost-saving by arranging the lens structure, reducing the number of parts, reducing the size and improving the convenience of assembly. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the three-dimensional structure of the lens structure provided by the embodiment of the present application.

[0026] Figure 2 is Figure 1 is a schematic diagram of the exploded structure of the lens structure shown in FIG. 4.

[0027] Figure 3 is a schematic diagram of the three-dimensional structure of the lens seat and the camera module provided by another embodiment of the present application.

[0028] Figure 4 is a schematic diagram of the three-dimensional structure of the endoscope provided by the embodiment of the present application.

[0029] Main element symbol explanation: endoscope 1000, lens structure 100, lens seat 10, first end 11, second end 12, mounting hole 13, working channel 14, groove 15, mounting step 151, avoiding groove 1511, connecting curved surface 16, first positioning part 17, camera module 20, illumination module 30, illumination part 31, flexible circuit board 32, first adhesive 40, tip 50, insertion hole 51, supporting protrusion 52, second positioning part 521, storage groove 53, through hole 54, clamping groove 55, circuit board assembly 60, control board 61, control chip 62, second adhesive 70, connecting hole 71, working pipeline 200, cable 300, clamping sleeve 400, clamping protrusion 410. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same reference numerals throughout. The embodiments described below are examples for explaining the present application and are not intended to limit the present application.

[0031] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other, it can be direct connection, or indirect connection through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0033] Some embodiments of the present application will be described in detail below with reference to the drawings.

[0034] Please refer to Figure 1 and Figure 4The lens structure 100 is applied to an endoscope 1000, and the endoscope 1000 comprises a working channel 200 for passing a surgical instrument (not shown in the figure).

[0035] Please refer to Figure 2 The lens structure 100 comprises a lens seat 10, a camera module 20 and an illumination module 30. The lens seat 10 has a first end 11 and a second end 12 arranged oppositely, and the lens seat 10 is provided with a mounting hole 13 and a working channel 14 extending from the first end 11 to the second end 12. The mounting hole 13 and the working channel 14 are arranged at intervals, and the working channel 14 is used for communicating with the working channel 200. The side wall of the lens seat 10 is provided with a groove 15, and the groove wall of the groove 15 close to the second end 12 forms a mounting step 151. The camera module 20 is arranged in the mounting hole 13, and the illumination module 30 is arranged on the mounting step 151.

[0036] The lens structure 100 of the embodiment of the present application is convenient for installing the camera module 20 by opening the mounting hole 13 on the lens seat 10, and is convenient for installing the illumination module 30 by arranging the mounting step 151. The illumination module 30 does not need to be fixed by an additional support (not shown in the figure), the working channel 14 is directly formed on the lens seat 10 by arranging the working channel 14 at intervals with the mounting hole 13 on the lens seat 10, the working channel 14 does not need to be formed by a soft plate (not shown in the figure) and glue (not shown in the figure), and the positional relationship between the working channel 14 and the camera module 20 is fixed and does not need to be limited by a sleeve (not shown in the figure). Therefore, the lens structure 100 of the embodiment of the present application reduces the number of parts, reduces the size and improves the convenience of assembly.

[0037] In the embodiment, the lens structure 100 further comprises a first adhesive 40, and the first adhesive 40 is arranged in the groove 15 and seals the illumination module 30. The side wall of the first adhesive 40 located at the slot opening of the groove 15 is arc-shaped. By arranging the first adhesive 40 to seal the illumination module 30, the illumination module 30 is effectively prevented from falling off or being damaged in the human body, thereby improving the safety of the endoscope 1000. By arranging the side wall of the first adhesive 40 located at the slot opening of the groove 15 to be arc-shaped, the probability of the first adhesive 40 scratching the human tissue is reduced.

[0038] In the embodiment, the groove 15 is in communication with the side of the first end 11 away from the second end 12. In this way, the first adhesive 40 is conveniently injected into the groove 15 to form the first adhesive 40, and the side wall of the first adhesive 40 located at the slot opening of the groove 15 is conveniently formed.

[0039] In the embodiment, the lens seat 10 has a connecting arc surface 16 arranged around the working channel 14, and the connecting arc surface 16 is connected with the side wall of the first adhesive 40 located at the notch of the groove 15. By arranging the connecting arc surface 16, the side wall of the lens seat 10 and the side wall arc of the first adhesive 40 located at the notch of the groove 15 are connected, so that no sharp edges are formed, thereby facilitating reduction of the probability of scratching the human tissue by the lens structure 100.

[0040] In the embodiment, the mounting step 151 is provided with a avoiding slot 1511, and the avoiding slot 1511 is in communication with the side of the second end 12 away from the first end 11. The illumination module 30 includes an illuminating piece 31 and a flexible circuit board 32, the illuminating piece 31 is arranged on the mounting step 151, the illuminating piece 31 can be an LED lamp, one end of the flexible circuit board 32 is electrically connected with the illuminating piece 31, and the other end of the flexible circuit board 32 extends through the avoiding slot 1511 and towards the side of the second end 12 away from the first end 11.

[0041] By arranging the avoiding slot 1511, the flexible circuit board 32 of the illumination module 30 is facilitated to pass through, and the flexible circuit board 32 of the illumination module 30 is prevented from protruding from the side wall of the lens seat 10 to scratch the human tissue. In addition, when the first adhesive 40 is formed, the first adhesive 40 also extends into the avoiding slot 1511 to seal the flexible circuit board 32, therefore, the arrangement of the avoiding slot 1511 also improves the comprehensiveness of the first adhesive 40 in sealing the illumination module 30, and improves the firmness of the connection between the first adhesive 40 and the lens seat 10.

[0042] Please refer to Figure 3 In another embodiment, along the extension direction of the mounting step 151, the two ends of the avoiding slot 1511 extend to the two ends of the mounting step 151 respectively. In this way, the size of the avoiding slot 1511 is larger, the avoiding slot 1511 is facilitated to be filled with glue, and the connection area between the first adhesive 40 and the mounting step 151 is improved, thereby further improving the firmness of the connection between the first adhesive 40 and the lens seat 10.

[0043] Please refer to Figure 1 and Figure 2 In the embodiment, the lens structure 100 further includes a front end head 50, the front end head 50 is arranged on the second end 12, the front end head 50 is provided with a insertion hole 51, the insertion hole 51 is arranged opposite to and in communication with the working channel 14, and the insertion hole 51 is used for inserting the working pipeline 200 to make the working channel 14 in communication with the working pipeline 200. By arranging the front end head 50, the lens structure 100 is facilitated to be connected with the working pipeline 200, and the accuracy of the communication between the working channel 14 and the working pipeline 200 is improved.

[0044] In the embodiment, the first positioning part 17 is arranged on the side of the second end 12 away from the first end 11, and the second positioning part 521 is arranged on the side of the tip head 50 close to the second end 12. The first positioning part 17 and the second positioning part 521 are inserted and positioned. In this way, the accuracy of the connection between the tip head 50 and the lens seat 10 is improved, thereby improving the accuracy of the communication between the working channel 14 and the working pipeline 200.

[0045] In the embodiment, the first positioning part 17 is a positioning hole, and the second positioning part 521 is a positioning column. The positioning column is inserted into the positioning hole to position the position of the tip head 50 relative to the lens seat 10. In other embodiments, the first positioning part 17 can also be a positioning column, and correspondingly, the second positioning part 521 is a positioning hole. The embodiments of the present application do not make specific limitations on this.

[0046] In the embodiment, the side of the tip head 50 facing the second end 12 is provided with a receiving groove 53 communicating with the insertion hole 51. The lens structure 100 further comprises a circuit board assembly 60 and a second adhesive 70. The circuit board assembly 60 is arranged in the receiving groove 53 and electrically connected with the camera module 20. The second adhesive 70 is arranged in the receiving groove 53 and connected with the circuit board assembly 60 and the groove wall of the receiving groove 53, respectively.

[0047] Specifically, the circuit board assembly 60 comprises a control board 61 and a control chip 62 arranged on the control board 61. The control chip 62 is arranged opposite to the working channel 14. The control chip 62 can be a photosensitive chip. The control board 61 is connected with the camera module 20, and the control chip 62 processes the image information obtained by the camera module 20. By arranging the circuit board assembly 60 in the receiving groove 53, the mounting hole 13 only needs to consider the installation of the camera module 20 when designed, thereby facilitating the reduction of the size of the mounting hole 13, and further facilitating the reduction of the size of the lens seat 10. By arranging the second adhesive 70, the circuit board assembly 60 is fixed and sealed, thereby reducing the probability of falling off and damage of the circuit board assembly 60.

[0048] In the embodiment, the side of the tip head 50 close to the second end 12 is provided with a support protrusion 52, and the second positioning part 521 is arranged on the support protrusion 52. The second adhesive 70 is arranged around the support protrusion 52, and the second adhesive 70 is connected with the tip head 50 and the lens seat 10, respectively. The second adhesive 70 is provided with a connecting hole 71, and the two ends of the connecting hole 71 are respectively communicated with the working channel 14 and the insertion hole 51. In this way, the second adhesive 70 seals the gap between the tip head 50 and the lens seat 10, thereby avoiding the influence of the body fluid in the human body on the normal use of the endoscope 1000 caused by entering the working channel 14 and the working pipeline 200.

[0049] In the embodiment, the flexible circuit board 32 is bent away from one end of the illuminating member 31 and is electrically connected with the circuit board assembly 60. In this way, the illuminating member 31 and the camera module 20 can be uniformly controlled through the circuit board assembly 60, thereby facilitating reduction of the number of components and further facilitating reduction of the size of the lens structure 100.

[0050] In the embodiment, the tip 50 is further provided with a through hole 54 which is in communication with the receiving groove 53 and is spaced apart from the insertion hole 51. The through hole 54 is used for the cable 300 of the endoscope 1000 to pass through, thereby facilitating electrical connection of the cable 300 with the circuit board assembly 60.

[0051] In summary, the lens structure 100 of the embodiment of the application facilitates installation of the camera module 20 by forming the mounting hole 13 on the lens seat 10, facilitates installation of the illuminating module 30 by forming the installation step 151, does not need to use an additional support to fix the illuminating module 30, forms the working channel 14 directly on the lens seat 10 without using a soft plate and glue to form the working channel 14, and fixes the positional relationship between the working channel 14 and the camera module 20 without using a sleeve to limit the positional relationship. Therefore, the lens structure 100 of the embodiment of the application reduces the number of components, reduces the size and improves the convenience of assembly.

[0052] Please refer to Figure 4 The embodiment of the application further provides an endoscope 1000 which comprises a working pipeline 200, a cable 300 and the lens structure 100 as described above. Specifically, the working pipeline 200 can be a hose, the working pipeline 200 is inserted into the insertion hole 51 and is in communication with the working channel 14, and the cable 300 passes through the through hole 54 and is electrically connected with the circuit board assembly 60.

[0053] The endoscope 1000 of the embodiment of the application reduces the number of components, reduces the size and improves the convenience of assembly by using the lens structure 100, thereby facilitating miniaturization of the endoscope 1000 and saving costs.

[0054] In the embodiment, the endoscope 1000 further comprises a clamping sleeve 400, the side of the tip 50 away from the lens seat 10 is provided with a clamping groove 55, the clamping sleeve 400 is sleeved outside the working pipeline 200 and the cable 300 and is located at the side of the tip 50 away from the lens seat 10, one side of the clamping sleeve 400 towards the tip 50 is provided with a clamping protrusion 410 which is clamped in the clamping groove 55, and the clamping sleeve 400 is used for fixing the working pipeline 200 and the cable 300. In this way, the firmness of the connection between the working pipeline 200 and the cable 300 and the lens structure 100 is improved.

[0055] It is apparent that the present application is not limited to the details of the foregoing exemplary embodiments, and thus modifications and equivalent arrangements can be made to the application without departing from the spirit or scope of the application. Therefore, the scope of the application should be defined by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.

[0056] Finally, it should be noted that the above embodiments are merely used to illustrate the technical solutions of the present application, rather than limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the present application.

Claims

1. A lens structure applied to an endoscope including a working channel, characterized by, The lens structure comprises: a lens seat having oppositely arranged first and second ends, the lens seat being provided with a mounting hole and a working channel extending from the first end to the second end, the mounting hole and the working channel being arranged in a spaced manner, the working channel being configured to communicate with the working pipeline, a side wall of the lens seat being provided with a recess, a groove wall of the recess near the second end forming a mounting step; a camera module arranged in the mounting hole; and an illumination module arranged in the mounting step.

2. The lens structure of claim 1, wherein, The mounting step is provided with an avoiding groove, the avoiding groove being in communication with a side of the second end away from the first end; the illumination module comprises an illuminating member and a flexible circuit board, the illuminating member being arranged in the mounting step, one end of the flexible circuit board being electrically connected with the illuminating member, the other end of the flexible circuit board extending through the avoiding groove and extending towards the side of the second end away from the first end.

3. The lens structure of claim 2, wherein, In the extension direction of the mounting step, the two ends of the avoiding groove extend to the two ends of the mounting step, respectively.

4. The lens structure of claim 1, wherein, The lens structure further comprises a first adhesive, the first adhesive being arranged in the recess and sealing the illumination module, a side wall of the recess at the groove opening being arc-shaped.

5. The lens structure of claim 4, wherein, The recess is in communication with a side of the first end away from the second end.

6. The lens structure of claim 4, wherein, The lens seat is provided with a connecting arc surface, the connecting arc surface being arranged around the working channel, the connecting arc surface being connected with the side wall of the recess at the groove opening.

7. The lens structure according to any one of claims 1 to 6, wherein The lens structure further comprises a front end head, the front end head being arranged in the second end, the front end head being provided with a insertion hole, the insertion hole being arranged opposite to and in communication with the working channel, the insertion hole being configured to allow the working pipeline to be inserted therein so as to allow the working channel to communicate with the working pipeline.

8. The lens structure of claim 7, wherein, A side of the second end away from the first end is provided with a first positioning part, a side of the front end head near the second end is provided with a second positioning part, the first positioning part and the second positioning part being inserted and positioned.

9. The lens structure of claim 7, wherein, A side of the front end head towards the second end is provided with a receiving groove in communication with the insertion hole; the lens structure further comprises a circuit board assembly and a second adhesive, the circuit board assembly being arranged in the receiving groove and being electrically connected with the camera module, the second adhesive being arranged in the receiving groove and being connected with the circuit board assembly and the groove wall of the receiving groove, respectively.

10. An endoscope characterized by comprising: The lens structure comprises a working pipeline and the lens structure according to any one of claims 1-9.

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