WO2023092737A1

WO2023092737A1 - Lens mount, distal module, endoscope and method

Info

Publication number: WO2023092737A1
Application number: PCT/CN2021/138468
Authority: WO
Inventors: 唐鹏
Original assignee: 湖南省华芯医疗器械有限公司
Priority date: 2021-11-29
Filing date: 2021-12-15
Publication date: 2023-06-01
Also published as: CN114098605A

Abstract

A lens mount (100), a distal module (200), an endoscope and a method. A light source component accommodating part (120) and a camera component accommodating part (130) are provided in the axial direction of a lens mount body (110), and the light source component accommodating part (120) is arranged adjacent to the camera component accommodating part (130); a side opening part (121) is provided in a side wall of the lens mount body (110), the side opening part (121) communicates with the light source component accommodating part (120), and the light source component accommodating part (120) is used for loading a light source component (220); and a first bottom surface opening part (131) is provided in the bottom surface of the lens mount body (110), the first bottom surface opening part (131) communicates with the camera component accommodating part (130), and the camera component accommodating part (130) is used for loading a camera component (210). The lens mount (100) can prevent damage to the camera component (210) and the light source component (220), and can facilitate installation of the light source component (220).

Description

Lens mount, distal module, endoscope and method

technical field

The invention relates to the technical field of endoscopes, in particular to a lens holder, a distal module, an endoscope and a method.

Background technique

An endoscope is a commonly used medical device consisting of a bendable part, a light source and a set of lenses. Enter the human body through the natural orifice of the human body, or through a small incision made by surgery. When in use, the endoscope is introduced into the pre-examined organ, and the changes in the relevant parts can be directly observed. The quality of the image directly affects the use effect of the endoscope, and also marks the development level of the endoscope technology. The earliest endoscopes were used for rectal examinations. The doctor inserts a hard tube into the anus of the patient, and observes the lesions of the rectum with the help of the light of a candle. The diagnostic information that can be obtained by this method is limited, and the patient is not only very painful, but also because the instrument is very hard, the risk of perforation is very high. Because of these shortcomings, endoscopy has been continuously applied and developed, and many different purposes and different types of instruments have been gradually designed.

In known endoscopes, a camera and a light source unit for illuminating an observation area of the endoscope and an imaging unit are provided at the distal end of the endoscope head.

Although in the endoscope of patent CN208724089U, the photocoupler and the LED light source are integrated through the protective cover, and the position is fixed and sealed by the potting glue, but the endoscope needs to include transparent potting glue, black potting Sealing glue, the transparent potting glue is set between the LED light source and the protective cover, and the black potting glue is set between the photocoupler, the wire and the protective cover. The transparent encapsulant covers the optocoupler, and the light will be refracted when passing through the transparent encapsulant, which will affect the image acquisition to a certain extent.

Due to the small size of the distal end of the endoscope head, there is always a need to save space in the endoscope head so that the required components can advantageously be accommodated in a limited space. And when loading the light source unit and camera unit, they are all inserted from the rear end to the front end. In a narrow space, it is very difficult to assemble by inserting the rear end, and it is easy to cause the light source unit and the camera unit to be disconnected during assembly. damage.

Contents of the invention

The object of the present invention is to provide a lens holder, a remote module, an endoscope and a method that prevent damage to the camera unit and the light source unit and facilitate the installation of the light source unit.

The first aspect of the present invention provides a lens mount, wherein a light source assembly accommodating portion and a camera assembly accommodating portion are arranged along the axial direction of the lens mount body, and the light source assembly accommodating portion is adjacent to the camera assembly accommodating portion;

The side wall of the lens holder body is provided with a side opening, and the side opening communicates with the light source assembly accommodating portion, and the light source assembly accommodating portion is used for loading the light source assembly;

A first bottom opening is provided on the bottom surface of the lens holder body, and the first bottom opening communicates with the camera assembly accommodating part, and the camera assembly accommodating part is used for loading the camera assembly.

Further, it also includes an operation tube accommodating portion, a second bottom opening is provided on the bottom surface of the operation tube accommodating portion facing the lens holder body, and the second bottom opening is used for the operation tube to be inserted into.

Further, a light-shielding layer is coated on the side walls of the light source assembly accommodation part and the camera assembly accommodation part, and a positioning part is provided at the top of the camera assembly accommodation part.

The second aspect of the present invention provides a remote module, including a camera assembly and a lens seat, the camera assembly is at least partly accommodated in the camera assembly accommodating part; the camera assembly includes a camera unit and a camera sleeve, and the camera sleeve sleeve It is arranged on the side wall of the camera unit, and the front end of the camera unit does not exceed the front end of the camera sleeve.

Further, it also includes a lens holder sleeve, and the lens holder sleeve is partially sleeved on the outer peripheral wall of the lens holder.

Further, a light source assembly is also included, and the light source assembly is arranged in the light source assembly accommodating portion.

Further, the light source assembly is provided with a connection part, the lens holder sleeve and the lens holder body form a through hole on the side wall of the distal module, the connection part is arranged in the through hole, and the The side walls of the connecting portion, the peripheral wall of the lens mount sleeve and the side wall of the lens mount body together constitute the side wall of the distal module.

Further, a lens is also included, and the lens cover is arranged at the top outlet of the camera component accommodating part.

The third aspect of the present invention provides an endoscope, which includes a handle portion and an insertion portion, the insertion portion includes a curved portion and a distal module, and the curved portion is fixedly connected to the distal module.

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

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

Step S20: Load the camera assembly into the camera assembly accommodating part from the opening of the first bottom surface, and position it through the positioning part;

Step S30: Put the light source assembly into the light source assembly accommodating part from the side opening; set the lens mount sleeve on the outer peripheral wall of the lens mount.

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

1. In the present invention, the side wall of the lens holder body is provided with a side opening that communicates with the light source assembly accommodating portion, thereby facilitating the light source assembly to be loaded into the lens holder body from the side, while facilitating the loading of the light source assembly, avoiding the need for the light source assembly damage;

2. In the present invention, the bottom surface of the lens holder body is provided with a first bottom surface opening that communicates with the camera assembly accommodating portion, thereby facilitating the camera assembly to be loaded into the lens holder body from the bottom surface;

3. The present invention facilitates the loading of the light source unit and the camera unit by setting the lens holder, and effectively avoids the damage of the light source unit and the camera unit during assembly;

4. In the present invention, when the shading performance of the material of the lens holder body cannot meet the requirements, a shading layer is coated on the side wall of the lighting working channel, thereby further preventing the light source unit from seeping into the lens holder of the endoscope, and avoiding light refraction The impact on image acquisition improves the quality of image acquisition;

5. The present invention arranges the camera unit inside the camera sleeve, and the front end of the camera unit does not exceed the front end of the camera sleeve, thus avoiding the damage of the camera unit when it is inserted through the rear end for assembly, and due to the setting of the camera sleeve, The overall length of the camera assembly is increased, making it easier to install the camera assembly;

6. The present invention forms a through hole on the side wall of the distal module through the lens mount sleeve and the lens mount body, and the through hole is used to accommodate the connection part of the light source assembly, thereby easily realizing the positioning and fixing of the light source assembly. Thus, the assembly efficiency of the remote module is improved.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the present invention or in the description of the prior art. Obviously, the accompanying drawings described below are only illustrations of the present invention For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without creative effort.

Fig. 1 is the three-dimensional schematic diagram of lens holder among the present invention;

Fig. 2 is a schematic side view of the lens holder in the present invention;

Fig. 3 is the bottom three-dimensional schematic diagram of lens mount in the present invention;

Fig. 4 is the schematic diagram of the remote module in the present invention;

Fig. 5 is a sectional view of the distal module in the present invention;

Fig. 6 is an exploded view of the remote module in the present invention;

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

Fig. 8 is a sectional view of the distal module in the direction A-A of the present invention.

Among them, 100, lens holder, 110, lens holder body, 120, light source assembly accommodating part, 121, side opening, 130, camera assembly accommodating part, 131, first bottom surface opening, 132, positioning part, 140, operating tube Accommodating part, 141, second bottom surface opening, 200, remote module, 210, camera component, 211, camera unit, 212, camera sleeve, 220, light source component, 221, connection part, 230, lens, 231, depression Department, 240, lens mount sleeve.

Detailed ways

The following description provides many different embodiments, or examples, for implementing various features of the invention. The elements and arrangements described in the following specific examples are only used to express the present invention in a concise manner, which are only examples and not intended to limit the present invention.

In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", " The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected: it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include that the first and second features are in direct contact, or may include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "on", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature. "Below", "below" and "under" the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

The present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

Example 1:

As shown in Fig. 1, Fig. 2, and Fig. 3, Embodiment 1 of the present invention provides a lens mount 100, in which a light source assembly accommodating portion 120 and a camera assembly accommodating portion 130 are arranged along the axial direction of the lens mount body 110, so that The light source assembly accommodating portion 120 is adjacent to the camera assembly accommodating portion 130;

The side wall of the lens holder body 110 is provided with a side opening 121, and the side opening 121 communicates with the light source assembly accommodating portion 120, and the light source assembly accommodating portion 120 is used for loading the light source assembly;

The bottom surface of the lens holder body 110 is provided with a first bottom opening 131, and the first bottom opening 131 communicates with the camera assembly accommodating portion 130, and the camera assembly accommodating portion 130 is used for loading the camera assembly .

In this embodiment, there is no special limitation on the material of the lens holder body 110 , which may be a transparent material or an opaque material. The shapes of the light source assembly accommodating portion 120 and the camera assembly accommodating portion 130 are also not particularly limited, and they may be cylindrical, polygonal prism, or polygonal truncated.

The side wall of the lens holder body 110 is provided with a side opening 121 communicating with the light source assembly accommodating portion 120, so that the light source assembly can be easily loaded into the lens holder body 110 from the side, and while the light source assembly is conveniently loaded, the light source assembly is avoided. damage.

The bottom surface of the lens holder body 110 is provided with a first bottom surface opening 131 communicating with the camera assembly accommodating portion, so that it is convenient to install the camera assembly into the lens holder body from the bottom surface.

By providing the lens holder 100, it is more convenient to install the light source unit and the camera unit, and effectively avoids damage to the light source unit and the camera unit during assembly.

Further, it also includes an operation tube accommodating portion 140, and the bottom surface of the operation tube accommodating portion 140 facing the lens holder body 110 is provided with a second bottom surface opening 141, and the second bottom surface opening 141 is for the operation tube to be inserted into. .

The side wall of the operation tube accommodating part 140 is provided with a concave part, and the concave part is arranged in close contact with the outer wall of the operation tube. The end of the operation tube is lower than the front end of the operation tube accommodating part 140. The setting enhances the fixing and sealing of the operating tube.

The operation tube accommodating part 140 is used for loading the operation tube, and the operation tube is used for the passage of operating instruments such as scalpels and forceps, and is also used for the passage of fluid media such as liquid medicine or water.

Further, the side walls of the light source assembly accommodating portion 120 and the camera assembly accommodating portion 130 are coated with a light-shielding layer, the top of the camera assembly accommodating portion 130 is provided with a positioning portion 132, the positioning The part 132 is used to realize the positioning of the whole camera assembly when the camera assembly 210 is assembled.

When the light-shielding performance of the material of the lens holder body 110 cannot meet the requirements, a light-shielding layer is coated on the side wall of the lighting working channel, thereby avoiding the influence of light refraction on image acquisition, and further preventing the light from the lighting unit from seeping into the endoscope lens holder Inside, the quality of image acquisition has been improved.

Example 2:

As shown in FIG. 4, FIG. 5, FIG. 6, FIG. 7, and FIG. 8, Embodiment 2 of the present invention provides a remote module 200, including a camera assembly 210 and a lens holder 100, and the camera assembly 210 is at least partially housed in Inside the camera component accommodating portion 130 ; the camera component 210 includes a camera unit 211 and a camera sleeve 212 , and the camera sleeve 212 is sheathed on the side wall of the camera unit 211 .

The shape and material of the camera sleeve 212 are not particularly limited, it can be a flexible material or a rigid material; in practical applications, the wall thickness and/or inner diameter of the camera sleeve 212 can be adjusted so that the camera sleeve 212 The camera units 211 of different sizes are matched, so as to realize the fixing and protection of the camera unit 211 and avoid the damage of the camera unit 211 during installation.

The camera unit 211 is arranged inside the camera sleeve 212, and the front end of the camera unit 211 does not exceed the front end of the camera sleeve 212, thereby preventing the camera unit 211 from being damaged when it is inserted through the rear end for assembly, and due to the setting of the camera sleeve 212 , the overall length of the camera assembly 210 is increased, and the loading of the camera assembly 210 is more convenient.

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 positioned 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, thereby avoiding The collision and contact between the lens at the front end of the camera unit 211 and the lens 230 can effectively protect the camera end of the camera unit 211 .

Further, a lens mount sleeve 240 is also included, and the lens mount sleeve 240 is partially sleeved on the outer peripheral wall of the lens mount 100 . The lens mount sleeve 240 is used for fixing the lens mount 100 and the light source assembly 220, and is connected with other structures of the endoscope.

Further, a light source assembly 220 is also included, and the light source assembly 220 is disposed in the light source assembly accommodating portion 120 . The light source assembly 220 is loaded from the side, which avoids damage to the light source assembly 220 when it is loaded from the bottom.

Further, the light source assembly 220 is provided with a connecting portion 221, the lens mount sleeve 240 and the lens mount body 110 form a through hole on the side wall of the distal module 200, the connecting portion 221 is disposed on the In the through hole, the side walls of the connecting portion 221 , the peripheral wall of the lens mount sleeve 240 and the side wall of the lens mount body 110 together constitute the side wall of the distal module 200 .

The lens mount sleeve 240 and the lens mount body 110 form a through hole on the side wall of the distal module, and the through hole is used to accommodate the connecting portion 221 of the light source assembly 220, thereby easily realizing the positioning and fixing of the light source assembly 220 , thereby improving the assembly efficiency of the light source assembly 220 .

Further, a lens 230 is also included, and the lens 230 is covered at the top exit of the camera component accommodating portion 130 .

The side of the lens 230 facing the camera unit 211 is provided with a recessed portion 231, so that even if the front end of the camera unit 211 does not exceed the front end of the camera sleeve 212, the collision between the lens at the front end of the camera unit 211 and the lens 230 can be effectively avoided and contacts, thereby realizing effective protection of the camera end of the camera unit 211.

The lens 230 is used to protect the camera unit 211 and prolong the service life of the camera unit 211 . The concave portion 231 is used for positioning the camera unit 211 , thereby improving the assembly efficiency of the camera unit 211 .

Example 3:

Embodiment 3 of the present invention provides an endoscope, including a handle portion and an insertion portion, the insertion portion includes a curved portion and a distal module 200, and the curved portion is fixedly connected to the distal module 200.

The handle part and the insertion part composed of the bending part and the distal module 200 form an endoscope for detection of internal organs. At the same time, an operation tube can also be arranged in the endoscope, through which sampling or medium circulation can be realized, so as to achieve the purpose of sampling or treatment.

Example 4:

Embodiment 4 of the present invention provides a method for assembling a remote module, including the following steps:

Step S10: installing the camera unit 211 in the camera sleeve 212, the front end of the camera unit 211 does not exceed the front end of the camera sleeve 212;

Step S20: Load the camera assembly 210 into the camera assembly accommodating part 130 from the first bottom opening 131, and position it through the positioning part 132;

Step S30 : Install the light source assembly 220 into the light source assembly accommodating portion 120 from the side opening 121 ; sleeve the lens mount sleeve 240 on the peripheral wall of the lens mount 100 .

The camera unit 211 is installed in the camera sleeve 212, so that the camera unit 211 is protected before installation, and then the protected camera unit 211 is loaded into the camera assembly accommodating portion from the first bottom surface opening 131 located at the bottom surface of the lens holder body 110 130, so that the camera unit 211 is loaded from the bottom of the lens holder body. At the same time, the camera sleeve 212 extends the volume of the camera unit 211 to facilitate the grip of the camera assembly 210, thereby facilitating the assembly of the camera assembly 210.

At the same time, by loading the light source assembly 220 into the light source assembly accommodating portion 120 from the side opening 121 located on the side wall of the lens holder body 110, the light source assembly 220 is installed from the side of the lens holder body 110, thereby effectively solving the problem of narrow space. The problem of high assembly difficulty can effectively avoid the damage of the lighting unit and the camera unit during assembly, and has positive practical significance in the field of industrial application.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims

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

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

The bottom surface of the lens holder body (110) is provided with a first bottom surface opening (131), the first bottom surface opening (131) communicates with the camera assembly accommodation part (130), and the camera assembly accommodation part (130) is used for packing into for camera assembly.
The lens holder (100) according to claim 1, characterized in that it further comprises an operation tube accommodating portion (140), and the operation tube accommodating portion (140) faces the bottom surface of the lens holder body (110) A second bottom opening (141) is provided for the operation tube to be inserted into.
The lens holder (100) according to claim 1 or 2, characterized in that, both the side walls of the light source assembly accommodating part (120) and the side walls of the camera assembly accommodating part (130) are coated with There is a light-shielding layer, and a positioning part (132) is arranged on the top end of the camera assembly accommodating part (130).
A remote module (200), characterized in that it comprises a camera assembly (210), the lens mount (100) according to any one of claims 1-3, the camera assembly (210) is at least partially housed in the camera assembly In the accommodating portion (130); the camera assembly (210) includes 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 remote module (200) according to claim 4, further comprising a lens mount sleeve (240), and the lens mount sleeve (240) is partially sleeved on the lens mount (100) on the peripheral wall.
The remote module (200) according to claim 5, further comprising a light source assembly (220), and the light source assembly (220) is arranged in the light source assembly accommodating part (120).
The remote module (200) according to claim 6, characterized in that, the light source assembly (220) is provided with a connecting portion (221), and the lens mount sleeve (240) is connected to the lens mount The main body (110) forms a through hole on the side wall of the distal module (200), the connecting part (221) is arranged in the through hole, the side of the connecting part (221), the lens holder sleeve The peripheral wall of (240) and the side wall of the lens holder body (110) jointly constitute the side wall of the distal module (200).
The remote module (200) according to claim 4, further comprising a lens (230), the lens (230) covering the top exit of the camera component accommodating part (130).
An endoscope, characterized in that it comprises a handle portion and an insertion portion, the insertion portion includes a curved portion and the distal end module (200) according to any one of claims 4-8, the curved portion and the distal end The modules (200) are fixedly connected.
A method for assembling a remote module according to any one of claims 4-8, characterized in that it comprises the steps of:

Step S10: install the camera unit (211) in the camera sleeve (212), the front end of the camera unit (211) does not exceed the front end of the camera sleeve (212);

Step S20: loading the camera assembly (210) into the camera assembly accommodating portion (130) from the first bottom surface opening (131), and positioning through the positioning portion (132);

Step S30: Install the light source assembly (220) into the light source assembly accommodating portion (120) from the side opening (121); sleeve the lens mount sleeve (240) on the peripheral wall of the lens mount (100).