CN209826636U

CN209826636U - Fiber endoscope

Info

Publication number: CN209826636U
Application number: CN201821508234.7U
Authority: CN
Inventors: 陈劲松; 张一�; 赵建
Original assignee: Suzhou Xinguang Medical Technology Co Ltd
Current assignee: Xinguangwei Medical Technology Suzhou Co ltd
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2019-12-24
Anticipated expiration: 2028-09-14

Abstract

The utility model provides a fiber endoscope, which comprises a lens tube, a detection head for detection and a connecting end connected with a host, wherein the inside of the lens tube is provided with an illuminating optical fiber and an image transmission optical fiber which are connected with both ends; the illumination optical fiber and the image transmission optical fiber are respectively connected with a light source component and an imaging component which are positioned in the host; the detection head is provided with a curved surface structure with one side protruding outwards, a scattering lens and a light collecting lens are arranged in the curved surface structure, and the end part of the illumination optical fiber is opposite to the scattering lens and emits illumination to the target cavity through the scattering lens; the image transmission optical fiber is opposite to the light collecting lens and collects light rays in the target cavity through the light collecting lens. The utility model discloses a set up the detecting head, with the optical lens integration on same object, simplified the structure of mirror tube tip, shorten the illumination optic fibre in the mirror tube and pass the distance of image optic fibre and mirror tube tip.

Description

Fiber endoscope

Technical Field

The utility model relates to an endoscope technical field, concretely relates to fiber endoscope.

Background

With the continuous development of science and technology, medical endoscopes have been widely used in the medical field, and serve as an important tool for detecting diseases. For example, endoscopes are used in kidney diseases or stomach diseases.

The endoscope mainly comprises a guide pipe, a probe connected with the guide pipe and a driving mechanism for controlling the guide pipe to drive the probe to bend at a required angle. When the endoscope is used, the far end of the catheter fixed probe needs to enter a human body, and images around the probe are collected and transmitted to an external display. In order to acquire images at different angular positions within the human body.

The catheter of the existing fiber endoscope is generally provided with two optical fibers, one optical fiber is used for sending light into a target area so as to illuminate the target area, and the other optical fiber is used for collecting the light reflected by the target area and transmitting the light to a host machine so as to finish imaging of the target area. The existing catheter enters the end part of a target cavity, one end distance is reserved between two optical fibers and the end part, and the part is used for installing an optical lens, so that the structure of the end part of the catheter is complex, and the maintenance and the cleaning are inconvenient.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is to overcome the defect of complicated structure of the optical fiber tip in the prior art, thereby providing a fiber endoscope with a simple structure of the end of the endoscope tube.

The utility model provides a fiber endoscope, include

The endoscope tube is provided with a detection head for detection and a connecting end connected with the host, and an illumination optical fiber and an image transmission optical fiber for connecting two ends are arranged in the endoscope tube; the illumination optical fiber and the image transmission optical fiber are respectively connected with a light source component and an imaging component which are positioned in the host;

the probe is provided with a curved surface structure with one side protruding outwards, a scattering lens and a light collecting lens are arranged in the curved surface structure,

the end part of the illumination optical fiber is opposite to the scattering lens and emits illumination into the target cavity through the scattering lens;

the image transmission optical fiber is opposite to the light collecting lens and collects light rays in the target cavity through the light collecting lens.

The probe and the mirror tube are integrally formed.

The scattering lens is a concave lens which is integrally formed with the detecting head, and the concave lens outwards disperses the light in the illuminating optical fiber.

The concave lens is a convex spherical surface towards the outer side, a concave surface towards the inner side, and the curvature of the spherical surface is smaller than that of the concave surface.

The illumination optical fiber and the image transmission optical fiber are arranged in the mirror tube in parallel.

The light collecting lens is a convex lens and is integrally formed with the detecting head, and the convex lens collects light rays in the target cavity.

Have lighting assembly, lighting assembly includes the light source, the host computer with still be provided with in the coupling end of link coupling with the speculum that the light source corresponds the setting, the light that the light source sent sends through leaded light bundle and sends extremely the speculum, and by the reflection extremely in the illumination optic fibre.

The imaging assembly comprises a CMOS assembly, and the CMOS assembly corresponds to the image transmission optical fiber.

An optical lens is further arranged between the image transmission optical fiber and the CMOS assembly and used for collecting light rays of the image transmission optical fiber to the CMOS assembly.

The imaging assembly further comprises an image processing host and a monitor, wherein the image processing host processes the light collected by the CMOS assembly into an image and transmits the image to the monitor, and the monitor is used for displaying the received image information.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a fiber endoscope, the tip of mirror tube has the detecting head, is equipped with the outside bellied curved surface structure in one side on the detecting head, is equipped with scattering lens and collection optical lens in the curved surface is structural, can make optical lens integration on same object through setting up this detecting head, has simplified the structure of mirror tube tip, shortens the illumination optic fibre in the mirror tube and passes the distance of image optic fibre and mirror tube tip.

2. The utility model provides a fiber endoscope, detecting head and mirror tube integrated into one piece to can make the mirror tube regard as disposable, use the endoscope promptly and all use a new mirror tube, guarantee aseptic technique's requirement in the human operation.

3. In the fiber endoscope provided by the embodiment, the scattering lens and the light collecting lens are integrally formed with the detection head, so that the production and installation of the detection head are facilitated.

4. According to the fiber endoscope provided by the embodiment, the scattering lens is the concave lens, so that the light transmitted by the illuminating optical fiber can greatly expand the irradiation range under the action of the concave lens, and a larger target area can be irradiated.

Drawings

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

FIG. 1 is a schematic configuration diagram of a fiber endoscope in example 1;

FIG. 2 is a schematic view showing the application of the fiberscope probe of embodiment 1 to a subject;

description of reference numerals:

1-a lens tube; 2-an illumination fiber; 3-image transmission optical fiber; 11-a probe head; 12-a connection end; 111-a scattering lens; 112-a collection lens; 41-a light source; 42-a light guide bundle; 43-a mirror; 51-CMOS components; 52-an optical lens; 53-image processing host; 54-a monitor; 6-target cavity.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides a fiber endoscope having a configuration as shown in fig. 1, and including a scope tube 1, an imaging unit, and an illumination unit. The imaging assembly and the illumination assembly are both located within the host. The endoscope tube 1 is provided with a detecting head 11 for detection and a connecting end 12 connected with a host, and the inside of the endoscope tube 1 is provided with an illuminating optical fiber 2 and an image transmission optical fiber 3 which are connected with the two ends; the lighting optical fiber 2 and the image transmission optical fiber 3 are respectively connected with a light source 41 component and an imaging component which are positioned in the host;

as shown in fig. 1, the probe 11 has a curved structure with one side protruding outwards, a scattering lens 111 and a light collecting lens 112 are arranged in the curved structure, and the end of the illumination fiber 2 is opposite to the scattering lens 111 and emits illumination into the target cavity 6 through the scattering lens 111; the image-transmitting fiber 3 is opposite to the light-collecting lens 112 and collects the light in the target cavity 6 through the light-collecting lens 112.

By arranging the scattering lens 111 and the light collecting lens 112 in the curved surface structure, the optical lens can be integrated on the same object by arranging the detecting head 11, the structure of the end part of the lens tube 1 is simplified, and the distance between the illumination optical fiber 2 and the image transmission optical fiber 3 in the lens tube 1 and the end part of the lens tube 1 is shortened. Meanwhile, due to the curved surface structure of the probe 11, the risk of damaging the body cavity is reduced when the probe works in the body cavity.

Specifically, the probe 11 in this embodiment is integrally formed with the endoscope tube 1, so that the endoscope tube 1 can be used for one time, i.e., a new endoscope tube 1 is used each time the endoscope is used, and the requirement of sterile operation is ensured in the human body operation.

The diffuser lens 111 in this embodiment is a concave lens that is integrally formed with the detector head 11, and the concave lens diverges the light in the illumination fiber 2 outward. As shown in fig. 2, the light transmitted by the illumination fiber 2 in this embodiment passes through the diffusion lens 111 to expand the illumination range in the target cavity 6. The concave lens is a convex spherical surface towards the outer side, a concave surface towards the inner side, and the curvature of the spherical surface is smaller than that of the concave surface.

The collection lens 112 in this embodiment is a convex lens that is integrally formed with the probe head 11, collects light within the target cavity 6, and has an image-transmitting fiber 3 that collects and transmits the light to an imaging component within the host. As shown in fig. 1, in the present embodiment, the illumination fiber 2 and the image transmission fiber 3 in the lens tube 1 are arranged in parallel, and the end portions correspond to the diffusion lens 111 and the collecting lens 112, respectively.

As shown in fig. 1, the illumination assembly in this embodiment includes a light source 41, a reflector 43 disposed corresponding to the light source 41 is further disposed in a coupling end of the host coupled to the connection end 12, and light emitted by the light source 41 is transmitted to the reflector 43 through a light guiding beam 42 and reflected into the illumination fiber 2. Specifically, the light source 41 is an LED lamp or other cold light source 41 such as a halogen light source 41.

The reflector 43 is arranged to reflect the light emitted by the light source 41 into the illumination fiber 2, so that the limitation on the installation position of the light source 41 is eliminated, and the light transmission of the illumination fiber 2 can be realized only by adjusting the reflection angle of the reflector 43.

As shown in fig. 1, the imaging module in the present embodiment includes a CMOS module 51, and the CMOS module 51 corresponds to the image transmitting fiber 3. An optical lens 52 is further disposed between the image transmission fiber 3 and the CMOS module 51, and the optical lens 52 is used for collecting the light of the image transmission fiber 3 to the CMOS module 51. The light transmitted by the image transmitting fiber 3 can be adjusted by the optical lens 52 and then irradiated onto the CMOS module 51, so as to facilitate the processing of the light by the CMOS module 51.

As shown in fig. 1, the imaging module in this embodiment further includes an image processing host 53 and a monitor 54, the image processing host 53 processes the light collected by the CMOS module 51 into an image and transmits the image to the monitor 54, and the monitor 54 is used for displaying the received image information. The monitor 54 feeds back the collected images to know the situation in the target cavity 6 in real time, and the operation such as the motion mode and the detection angle of the endoscope can be adjusted according to the actual situation of the target cavity 6.

The coupling end of the main machine in this embodiment is in threaded connection with the connecting end 12 of the mirror tube 1, namely, the outer peripheral surface of the coupling end is provided with an external thread, meanwhile, the inner peripheral surface of the connecting end 12 is provided with an internal thread matched with the external thread, and the mirror tube 1 is connected to the operating device through a thread knob.

As an alternative embodiment, the probe 11 and the scope tube 1 in this embodiment can be detachably connected.

As an alternative embodiment, the CMOS component 51 in this embodiment may be replaced by a CCD.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A fiberscope comprising

The endoscope comprises an endoscope tube (1) and a control system, wherein the endoscope tube (1) is provided with a detection head (11) for detection and a connecting end (12) connected with a host, and an illuminating optical fiber (2) and an image transmission optical fiber (3) for connecting two ends are arranged in the endoscope tube (1); the illumination optical fiber (2) and the image transmission optical fiber (3) are respectively connected with a light source (41) component and an imaging component which are positioned in a host machine;

it is characterized in that the detecting head (11) is provided with a curved surface structure with one side protruding outwards, a scattering lens (111) and a light collecting lens (112) are arranged in the curved surface structure,

the end part of the illumination optical fiber (2) is opposite to the scattering lens (111) and emits illumination into a target cavity (6) through the scattering lens (111);

the image transmission optical fiber (3) is opposite to the light collecting lens (112) and collects light rays in the target cavity (6) through the light collecting lens (112).

2. A fiberscope according to claim 1, wherein the probe (11) is formed integrally with the scope tube (1).

3. A fiberscope according to claim 2, wherein said scattering lens (111) is a concave lens integrally formed with said probe head (11), said concave lens diverging light from said illumination fiber (2) outwardly.

4. A fiberscope according to claim 3, wherein said concave lens is outwardly convex and inwardly concave, said spherical surface having a curvature smaller than that of said concave surface.

5. A fibre endoscope according to any one of claims 1-4, characterized in that the illumination fibre (2) and the image-transmitting fibre (3) are arranged in parallel inside the scope tube (1).

6. A fiberscope according to claim 5, wherein said light collecting lens (112) is a convex lens integrally formed with said probe head (11), said convex lens collecting light within said target cavity (6).

7. A fiber endoscope according to claim 6, characterized by that, it has an illumination assembly, said illumination assembly includes a light source (41), a reflector (43) corresponding to said light source (41) is set in the coupling end of said main body coupled with said connecting end (12), the light emitted by said light source (41) is transmitted to said reflector (43) via a light guide beam (42), and is reflected by said reflector (43) into said illumination fiber (2).

8. A fiberscope according to claim 7, wherein said imaging assembly comprises a CMOS assembly (51), said CMOS assembly (51) corresponding to said image-transmitting optical fiber (3).

9. A fiber endoscope according to claim 8, characterized in that an optical lens (52) is further arranged between the image transmission fiber (3) and the CMOS assembly (51), and the optical lens (52) is used for collecting the light of the image transmission fiber (3) to the CMOS assembly (51).

10. A fibre endoscope according to claim 9, characterised in that the imaging module further comprises an image processing host (53) and a monitor (54), the image processing host (53) processing the light collected by the CMOS module (51) into an image to be transmitted to the monitor (54), the monitor (54) being adapted to display the received image information.