CN114098605A

CN114098605A - Lens mount, distal end module, endoscope and method

Info

Publication number: CN114098605A
Application number: CN202111431987.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Hunan Vathin Medical Instrument Co Ltd
Current assignee: Hunan Vathin Medical Instrument Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-03-01
Also published as: WO2023092737A1

Abstract

The invention is suitable for the technical field of endoscopes, and provides a lens mount, a far-end module, an endoscope and a method, wherein a light source assembly accommodating part and a camera shooting assembly accommodating part are arranged along the axial direction of a lens mount body, and the light source assembly accommodating part and the camera shooting assembly accommodating part are arranged adjacently; the side wall of the lens seat body is provided with a side opening part which is communicated with the light source assembly accommodating part, and the light source assembly accommodating part is used for accommodating a light source assembly; the camera lens holder comprises a lens holder body and is characterized in that a first bottom opening is formed in the bottom surface of the lens holder body, the first bottom opening is communicated with a camera shooting assembly accommodating part, and the camera shooting assembly accommodating part is used for accommodating a camera shooting assembly. The lens mount, the distal end module, the endoscope and the method provided by the invention can prevent the camera shooting unit and the light source unit from being damaged and facilitate the installation of the light source unit.

Description

Lens mount, distal end module, endoscope and method

Technical Field

The invention relates to the technical field of endoscopes, in particular to a lens mount, a far-end module, an endoscope and a method.

Background

An endoscope is a commonly used medical instrument and consists of a bendable part, a light source and a group of lenses. Enter the human body through natural orifices of the human body or small incisions made by operation. When in use, the endoscope is introduced into the pre-examined organ, and the change of the relevant part can be directly observed. The quality of the image directly affects the using effect of the endoscope and also marks the development level of the endoscope technology. The earliest endoscopes were applied to rectal examination. The doctor inserts a hard tube into the anus of the patient and observes the pathological changes of the rectum by means of the brightness of the candle. This method has limited diagnostic data available, is painful for the patient, and poses a significant risk of perforation due to the rigid apparatus. Because of these shortcomings, endoscopy continues to be used and developed, and many different uses and types of instruments are being designed.

In a known endoscope, a camera and a light source unit for illuminating and imaging an observation region of the endoscope are provided at a distal end of a lens portion of the endoscope.

Although in the endoscope of patent CN208724089U, the photoelectric coupler and the LED light source are integrated into a whole through the protective sleeve, and the position is fixed and sealed by the pouring sealant, in this endoscope, it needs to include transparent pouring sealant and black pouring sealant at the same time, the transparent pouring sealant is disposed between the LED light source and the protective sleeve, and the black pouring sealant is disposed between the photoelectric coupler, the wire and the protective sleeve. The photoelectric coupler is covered by the transparent pouring sealant, and light can be refracted when passing through the transparent pouring sealant, so that certain influence can be caused on image acquisition.

Due to the small size of the distal end of the endoscope head, space saving is always required in the endoscope head, so that the required components can advantageously be accommodated in a limited space. In addition, the light source unit and the camera unit are inserted from the rear end to the front end when being assembled, the assembly difficulty is high through the rear end insertion in a narrow space, and the light source unit and the camera unit are easily damaged during the assembly.

Disclosure of Invention

The invention aims to provide a lens mount, a far-end module, an endoscope and a method which prevent a camera shooting unit and a light source unit from being damaged and facilitate the installation of the light source unit.

The invention provides a lens mount, which is provided with a light source assembly accommodating part and a camera shooting assembly accommodating part along the axial direction of a lens mount body, wherein the light source assembly accommodating part is adjacent to the camera shooting assembly accommodating part;

the side wall of the lens seat body is provided with a side opening part which is communicated with the light source assembly accommodating part, and the light source assembly accommodating part is used for accommodating a light source assembly;

the camera lens holder comprises a lens holder body and is characterized in that a first bottom opening is formed in the bottom surface of the lens holder body, the first bottom opening is communicated with a camera shooting assembly accommodating part, and the camera shooting assembly accommodating part is used for accommodating a camera shooting assembly.

Furthermore, the lens holder comprises an operating tube accommodating part, wherein a second bottom opening part is arranged on the bottom surface of the operating tube accommodating part facing the lens holder body and is used for accommodating an operating tube.

Furthermore, the side wall of the light source assembly accommodating part and the side wall of the camera shooting assembly accommodating part are coated with light shielding layers, and the top end of the camera shooting assembly accommodating part is provided with a positioning part.

A second aspect of the present invention provides a remote module, including a camera module and a lens mount, where the camera module is at least partially accommodated in a camera module accommodating portion; the camera shooting assembly comprises a camera shooting unit and a camera sleeve, the camera sleeve is sleeved on the side wall of the camera shooting unit, and the front end of the camera shooting unit is not beyond the front end of the camera sleeve.

Furthermore, the lens holder sleeve is further included, and the part of the lens holder sleeve is sleeved on the peripheral wall of the lens holder.

Further, still include the light source subassembly, the light source subassembly sets up in the light source subassembly portion of accomodating.

Further, be provided with connecting portion on the light source subassembly, the lens mount sleeve with the lens mount body forms the through-hole on the lateral wall of distal end module, connecting portion set up in the through-hole, the side of connecting portion the telescopic periphery wall of lens mount with the lateral wall of lens mount body constitutes the lateral wall of distal end module jointly.

Furthermore, the camera shooting device further comprises a lens, and the lens is covered at the top outlet of the camera shooting assembly accommodating part.

A third aspect of the invention provides an endoscope comprising a handle portion and an insertion portion, the insertion portion comprising a bending portion and a distal module, the bending portion being fixedly connected to the distal module.

A fourth aspect of the present invention provides a method for assembling a remote module, including the steps of:

step S10: installing a camera unit in a camera sleeve, wherein the front end of the camera unit does not exceed the front end of the camera sleeve;

step S20: the camera shooting assembly is arranged in the camera shooting assembly accommodating part from the first bottom opening part and is positioned by the positioning part;

step S30: the light source component is arranged in the light source component accommodating part from the side opening part; the lens mount sleeve is sleeved on the outer peripheral wall of the lens mount.

In summary, the present invention has at least the following technical effects:

1. the side opening part communicated with the light source component accommodating part is arranged on the side wall of the lens holder body, so that the light source component is conveniently arranged in the lens holder body from the side surface, and the light source component is conveniently arranged and is prevented from being damaged;

2. according to the invention, the bottom surface of the lens holder body is provided with the first bottom surface opening part communicated with the camera shooting component accommodating part, so that the camera shooting component can be conveniently arranged in the lens holder body from the bottom surface;

3. the lens mount is arranged, so that the light source assembly and the camera shooting assembly can be more conveniently arranged, and the damage of the light source unit and the camera shooting unit during assembly is effectively avoided;

4. when the shading performance of the lens mount body material cannot meet the requirements, the shading layer is coated on the side wall of the lighting working channel, so that light leakage of the light source unit to the inner side of the endoscope lens mount is further prevented, the influence of light refraction on image acquisition is avoided, and the image acquisition quality is improved;

5. according to the invention, the camera shooting unit is arranged in the camera barrel sleeve, and the front end of the camera shooting unit does not exceed the front end of the camera barrel sleeve, so that the camera shooting unit is prevented from being damaged when being inserted into the camera barrel sleeve for assembly through the rear end;

6. according to the invention, the through hole is formed on the side wall of the far-end module through the lens mount sleeve and the lens mount body, and the through hole is used for accommodating the connecting part of the light source assembly, so that the positioning and fixing of the light source assembly are easily realized, and the assembly efficiency of the far-end module is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a lens holder according to the present invention;

FIG. 2 is a side view of the lens holder of the present invention;

FIG. 3 is a schematic bottom perspective view of the lens holder of the present invention;

FIG. 4 is a schematic diagram of a remote module of the present invention;

FIG. 5 is a cross-sectional view of a remote module of the present invention;

FIG. 6 is an exploded view of a remote module of the present invention;

FIG. 7 is a schematic top view of a remote module of the present invention;

fig. 8 is a cross-sectional view of a remote module of the present invention taken along the line a-a.

100, a lens mount, 110, a lens mount body, 120, a light source assembly accommodating part, 121, a side opening, 130, a camera shooting assembly accommodating part, 131, a first bottom opening, 132, a positioning part, 140, an operation tube accommodating part, 141, a second bottom opening, 200, a far-end module, 210, a camera shooting assembly, 211, a camera shooting unit, 212, a camera sleeve, 220, a light source assembly, 221, a connecting part, 230, a lens, 231, a concave part, 240 and a lens mount sleeve.

Detailed Description

The following description provides many different embodiments, or examples, for implementing different features of the invention. The particular examples set forth below are illustrative only and are not intended to be limiting.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection: may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example 1:

as shown in fig. 1, 2, and 3, in embodiment 1 of the present invention, a lens holder 100 is provided, in which a light source module accommodating portion 120 and a camera module accommodating portion 130 are disposed along an axial direction of a lens holder body 110, and the light source module accommodating portion 120 is disposed adjacent to the camera module accommodating portion 130;

the side wall of the lens holder body 110 is provided with a side opening 121, the side opening 121 is communicated with the light source module accommodating part 120, and the light source module accommodating part 120 is used for accommodating a light source module;

a first bottom opening 131 is disposed on the bottom surface of the lens holder body 110, the first bottom opening 131 is communicated with the camera module accommodating portion 130, and the camera module accommodating portion 130 is used for accommodating a camera module.

In this embodiment, the material of the lens holder body 110 is not particularly limited, and may be a transparent material or an opaque material. The shapes of the light source module accommodating part 120 and the image pickup module accommodating part 130 are not particularly limited, and may be selected from a cylindrical shape, a polygonal prism shape, and a polygonal frustum shape.

The side opening part 121 communicated with the light source assembly accommodating part 120 is arranged on the side wall of the lens holder body 110, so that the light source assembly is conveniently arranged in the lens holder body 110 from the side, and the light source assembly is convenient to arrange, and meanwhile, the damage to the light source assembly is avoided.

The bottom surface of the lens holder body 110 is provided with a first bottom surface opening 131 communicated with the camera module accommodating portion, so that the camera module can be conveniently installed into the lens holder body from the bottom surface.

Through setting up lens mount 100, be convenient for more the packing into of light source subassembly and subassembly of making a video recording, effectively avoided light source unit and the unit of making a video recording to receive the damage when the assembly.

Further, the lens holder further comprises an operation tube accommodating portion 140, wherein a second bottom opening portion 141 is provided on a bottom surface of the operation tube accommodating portion 140 facing the lens holder body 110, and the second bottom opening portion 141 is used for accommodating an operation tube.

The lateral wall of control tube portion of accommodating 140 sets up the depressed part, the depressed part with the outer wall laminating of control tube sets up, the tip of control tube is less than the front end of control tube portion of accommodating 140, the setting of depressed part has strengthened the fixed and sealed of control tube.

The operation tube housing 140 is used for housing an operation tube for passing operation instruments such as a scalpel and a forceps and for passing a fluid medium such as a medical solution or water.

Furthermore, the side walls of the light source module accommodating portion 120 and the side walls of the camera module accommodating portion 130 are coated with light shielding layers, the top end of the camera module accommodating portion 130 is provided with a positioning portion 132, and the positioning portion 132 is used for positioning the whole camera module when the camera module 210 is assembled.

When the shading performance of the lens mount body 110 material can not meet the requirements, the shading layer is coated on the side wall of the lighting working channel, so that the influence of light refraction on image acquisition is avoided, the lighting unit is further prevented from permeating light into the endoscope lens mount, and the image acquisition quality is improved.

Example 2:

as shown in fig. 4, 5, 6, 7, and 8, embodiment 2 of the present invention provides a remote module 200, which includes a camera assembly 210 and a lens mount 100, where the camera assembly 210 is at least partially accommodated in the camera assembly accommodating portion 130; the camera assembly 210 comprises a camera unit 211 and a camera sleeve 212, and the camera sleeve 212 is sleeved on the side wall of the camera unit 211.

The shape and material of the camera barrel sleeve 212 are not particularly limited, and the camera barrel sleeve can be made of flexible materials or rigid materials; in practical application, the wall thickness and/or the inner diameter of the camera barrel sleeve 212 can be adjusted, so that the camera barrel sleeve 212 is matched with the camera unit 211 with different sizes, the camera unit 211 is fixed and protected, and the camera unit 211 is prevented from being damaged in the installation process.

Set up camera unit 211 inside camera barrel casing 212, camera unit 211's front end is no longer than the front end of camera barrel casing 212 to avoid camera unit 211 to receive the damage when inserting through the rear end and assemble, and because camera barrel casing 212's setting, increased the holistic length of subassembly 210 of making a video recording, made things convenient for the packing into of subassembly 210 more.

Because the lens at the front end of the camera unit 211 is easily damaged by external force during assembly, when the camera end of the camera unit 211 is located at the front end of the camera unit 211, the front end of the camera unit 211 does not exceed the front end of the camera sleeve 212, so that collision and contact between the lens at the front end of the camera unit 211 and the lens 230 are avoided, and effective protection of the camera end of the camera unit 211 is realized.

Further, the lens holder comprises a lens holder sleeve 240, and the lens holder sleeve 240 is partially sleeved on the outer peripheral wall of the lens holder 100. The lens mount sleeve 240 is used to secure the lens mount 100 and the light source assembly 220 and to connect to other structures of the endoscope.

Further, the light source module 220 is further included, and the light source module 220 is disposed in the light source module accommodating portion 120. The light source assembly 220 is installed from the side, so that the situation that the light source assembly 220 is damaged when the light source assembly is installed from the bottom is avoided.

Further, be provided with connecting portion 221 on the light source subassembly 220, lens mount sleeve 240 with lens mount body 110 forms the through-hole on the lateral wall of distal end module 200, connecting portion 221 set up in the through-hole, the side of connecting portion 221, the periphery wall of lens mount sleeve 240 with the lateral wall of lens mount body 110 constitutes distal end module 200's lateral wall jointly.

Through the lens mount sleeve 240 and the lens mount body 110, a through hole is formed on the sidewall of the distal module, through which the connecting portion 221 of the light source assembly 220 is received, thereby easily achieving the positioning and fixing of the light source assembly 220, and further improving the assembly efficiency of the light source assembly 220.

Further, the camera module comprises a lens 230, and the lens 230 is covered on the top outlet of the camera module accommodating portion 130.

One side of the lens 230 facing the camera shooting unit 211 is provided with a concave part 231, so that even if the front end of the camera shooting unit 211 does not exceed the front end of the camera sleeve 212, the collision and contact between the lens at the front end of the camera shooting unit 211 and the lens 230 can be effectively avoided, and the camera shooting end of the camera shooting unit 211 can be effectively protected.

The lens 230 is used for protecting the image capturing unit 211 and prolonging the service life of the image capturing unit 211. The recessed portion 231 is used to position the image pickup unit 211, thereby improving the assembly efficiency of the image pickup unit 211.

Example 3:

embodiment 3 of the present invention provides an endoscope including a handle portion and an insertion portion including a bending portion fixedly connected to a distal end module 200 and the distal end module 200.

The handle portion and the insertion portion, which is composed of the bending portion and the distal end module 200 together, form an endoscope for examination of an internal body organ. Meanwhile, an operating tube can be arranged in the endoscope, sampling is carried out or medium circulation is realized through the operating tube, and the purpose of sampling or treatment is achieved.

Example 4:

embodiment 4 of the present invention provides an assembly method of a remote module, including the following steps:

step S10: the camera shooting unit 211 is arranged in the camera head sleeve 212, and the front end of the camera shooting unit 211 does not exceed the front end of the camera head sleeve 212;

step S20: the camera module 210 is loaded into the camera module accommodating part 130 from the first bottom opening part 131 and is positioned by the positioning part 132;

step S30: the light source module 220 is inserted into the light source module accommodating part 120 from the side opening 121; the lens holder sleeve 240 is disposed on the outer peripheral wall of the lens holder 100.

Install camera unit 211 in camera sleeve 212 for camera unit 211 receives the protection before the installation, and the camera unit 211 that will receive the protection again is packed into camera module accommodating part 130 from the first bottom surface opening 131 that is located the lens mount body 110 bottom surface in, thereby makes camera unit 211 pack into from lens mount body bottom, simultaneously because camera sleeve 212 has made things convenient for the holding of camera module 210 more to camera unit 211 volumetric extension, and then makes things convenient for camera module 210's assembly.

Meanwhile, the light source assembly 220 is arranged in the light source assembly accommodating part 120 from the side opening part 121 on the side wall of the lens holder body 110, so that the light source assembly 220 is arranged from the side surface of the lens holder body 110, the problem of high assembly difficulty in a narrow space is effectively solved, the damage of the lighting unit and the camera unit during assembly is effectively avoided, and the light source assembly has positive practical significance in the field of industrial application.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A lens holder (100) is characterized in that a light source assembly accommodating part (120) and a camera shooting assembly accommodating part (130) are arranged along the axial direction of a lens holder body (110), and the light source assembly accommodating part (120) is adjacent to the camera shooting assembly accommodating part (130);

the side wall of the lens holder body (110) is provided with a side opening part (121), the side opening part (121) is communicated with the light source assembly accommodating part (120), and the light source assembly accommodating part (120) is used for accommodating a light source assembly;

the bottom surface of the lens holder body (110) is provided with a first bottom surface opening part (131), the first bottom surface opening part (131) is communicated with the camera shooting component accommodating part (130), and the camera shooting component accommodating part (130) is used for accommodating a camera shooting component.

2. The lens holder (100) of claim 1, further comprising a handling tube accommodating portion (140), wherein a second bottom opening portion (141) is provided on a bottom surface of the handling tube accommodating portion (140) facing the lens holder body (110), and the second bottom opening portion (141) is configured to receive a handling tube.

3. The lens holder (100) of claim 1 or 2, wherein the side walls of the light source module accommodating portion (120) and the side walls of the camera module accommodating portion (130) are coated with light shielding layers, and the top end of the camera module accommodating portion (130) is provided with a positioning portion (132).

4. A remote module (200) comprising a camera assembly (210), the lens holder (100) of any one of claims 1-3, the camera assembly (210) being at least partially received in a camera assembly receiving portion (130); the camera shooting assembly (210) comprises a camera shooting unit (211) and a camera sleeve (212), and the camera sleeve (212) is sleeved on the side wall of the camera shooting unit (211).

5. The remote module (200) of claim 4, further comprising a lens holder sleeve (240), wherein the lens holder sleeve (240) partially fits over the outer peripheral wall of the lens holder (100).

6. The remote module (200) as recited in claim 5, further comprising a light source assembly (220), the light source assembly (220) being disposed within the light source assembly housing (120).

7. The remote module (200) of claim 6, wherein the light source assembly (220) is provided with a connecting portion (221), the lens holder sleeve (240) and the lens holder body (110) form a through hole on a sidewall of the remote module (200), the connecting portion (221) is disposed in the through hole, and a side surface of the connecting portion (221), an outer peripheral wall of the lens holder sleeve (240) and the sidewall of the lens holder body (110) together form a sidewall of the remote module (200).

8. The distal module (200) of claim 4, further comprising a lens (230), wherein the lens (230) covers the top outlet of the camera module receiving portion (130).

9. An endoscope, characterized in that it comprises a handle portion and an insertion portion, said insertion portion comprising a bending portion and a distal module (200) according to one of claims 4 to 8, said bending portion being fixedly connected to the distal module (200).

10. A method of assembling a remote module as claimed in any one of claims 4 to 8, comprising the steps of:

step S10: installing a camera unit (211) in a camera sleeve (212), wherein the front end of the camera unit (211) does not exceed the front end of the camera sleeve (212);

step S20: the camera shooting assembly (210) is arranged in the camera shooting assembly accommodating part (130) from the first bottom opening part (131) and is positioned by the positioning part (132);

step S30: the light source module (220) is arranged in the light source module accommodating part (120) from the side opening part (121); the lens holder sleeve (240) is sleeved on the outer peripheral wall of the lens holder (100).