CN110897597A

CN110897597A - Endoscope

Info

Publication number: CN110897597A
Application number: CN201911169352.9A
Authority: CN
Inventors: 王珍玮
Original assignee: ZHUHAI PUSHENG MEDICAL SCIENCE & TECHNOLOGY Co Ltd
Current assignee: ZHUHAI PUSHENG MEDICAL SCIENCE & TECHNOLOGY Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-03-24

Abstract

The invention discloses an endoscope for solving the illumination problem of the endoscope, which comprises a sleeve, wherein at least one part of the sleeve is a light guide section, the light guide section is a light guide pipe capable of conducting light rays, and incident light rays can be emitted from the peripheral surface and/or axial surface of the light guide pipe; the light pipe is used for illuminating the inside of the inserted cavity, so that the imaging device can conveniently obtain a clear image; the light guide pipe is used for lighting, so that lighting equipment in the sleeve pipe can be omitted, the size of the sleeve pipe is reduced, and discomfort of a patient when the endoscope is used is weakened.

Description

Endoscope

Technical Field

The invention relates to the field of medical equipment, in particular to an endoscope.

Background

The endoscope is after getting into the body, utilizes photographic arrangement to observe or treat for improve picture quality, makes the photographic image more clear, still is provided with the light source in the endoscope usually, and the light source shines towards the direction of motion of endoscope, so that acquire the image and observe the state of an illness through photographic arrangement, can also facilitate the user to control the endoscope motion.

The endoscope sets up an independent illumination channel usually in the body, and the light source passes through the illumination channel and inserts to the endoscope front end, owing to add the illumination channel on the endoscope body, can make the diameter increase of endoscope for the endoscope increases when the narrow passageway through the internal has operated the difficulty degree, can increase patient's misery undoubtedly, leads to the fact secondary damage even to the patient.

Disclosure of Invention

In order to overcome one of the technical problems of the prior art, the invention provides an endoscope capable of conducting light to illuminate.

The endoscope comprises a sleeve, wherein an image channel and a working channel are arranged in the sleeve, an imaging device is arranged in the image channel, at least part of the sleeve body is a light guide section, the light guide section is connected with a light source, the light guide section is a light guide pipe capable of conducting light, and incident light can be emitted from the peripheral surface and/or the axial surface of the light guide pipe.

The endoscope has at least the following beneficial effects: the light guide pipe is arranged in the sleeve body, light is conducted by the light guide pipe, light of a light source is guided into the light guide pipe, the interior of the inserted cavity is illuminated, and the endoscope can conveniently obtain clear images; and the sleeve body is used for lighting, so that lighting equipment can be omitted from being arranged in the sleeve, the size of the sleeve is reduced, and the discomfort of a patient when the endoscope is used is weakened.

In some embodiments, the light pipe is made of a highly light conductive material. Further reducing the refraction of light and improving the brightness of the light pipe.

In some embodiments, at least one sealed cavity is disposed in the light guide tube wall, and the sealed cavity is filled with light guide liquid. The refractive index of the light guide liquid is low, and the brightness of the light guide pipe can be improved.

In some embodiments, a light reflecting layer is disposed on an inner wall of the image channel, the light reflecting layer reflecting light out of the sleeve. The reflecting layer can prevent scattered light from influencing the lens of the endoscope, and the imaging quality of the endoscope is improved.

In some embodiments, a reflective layer is also disposed on the inner wall of the working channel, and reflects light out of the sleeve. The light reflecting layer can reflect the light irradiated inwards to irradiate outwards, so that the brightness of the light guide pipe is improved.

In some embodiments, the sleeve and the light pipe are bendable flexible tubes. The flexible sleeve and the light guide pipe can easily enter a bent channel, so that the endoscope is more convenient to place, and is not easy to injure patients, and is safer.

In some embodiments, the light pipe is disposed at the front end of the sleeve, and the light guide fiber is disposed in the sleeve, and the front end of the light guide fiber is connected to the tail end of the light pipe. Only the front end of the sleeve is illuminated, so that the illumination is more concentrated, the operation of the endoscope is not hindered, and the diameter of the endoscope can be prevented from being increased by conducting light through the light guide optical fiber.

In some embodiments, the body of the cannula is a light pipe. The light source directly irradiates the sleeve from the tail end of the sleeve, and the whole sleeve body conducts light guiding illumination, so that the light guiding brightness is improved.

In some embodiments, a light-shielding layer is disposed outside the sleeve. The visual interference caused by over-brightness of the tail end of the sleeve is prevented, the operation of a doctor is prevented from being influenced, and the use safety is improved.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. Obviously, the described figures are only some embodiments of the invention, not all embodiments, and other designs and figures can be obtained by those skilled in the art without inventive effort, based on these figures:

FIG. 1 is a cross-sectional view of a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of a second embodiment of the present invention;

FIG. 3 is a cross-sectional view of a third embodiment of the present invention;

fig. 4 is a partially enlarged schematic view of a portion a of fig. 1.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within 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", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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.

It should be noted that unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and include, for example, fixed or removable connections or integral connections; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, an endoscope includes a sleeve 1, an image channel 2 and a working channel 3 are disposed in the sleeve 1, an imaging device 4 is disposed in the image channel 2, at least a part of a body of the sleeve 1 is a light guide section, the light guide section is a light guide tube 5 capable of conducting light, and incident light can be emitted from a peripheral surface and/or an axial surface of the light guide tube 5.

Referring to fig. 1 and 2, the tube body of the cannula 1 in

embodiments

1 and 2 is the light guide tube 5, the light source directly irradiates the end of the cannula 1, the light is transmitted along the light guide tube 5, in order to solve the problem that the partial light emission of the cannula 1 outside the body affects the sight of the doctor, a light shielding layer can be additionally arranged outside the cannula 1, and only the partial light guide tube 5 at the front end of the cannula 1 is left for illumination. The shading layer comprises different structures such as shading sleeves, shading coatings, shading adhesive tapes and the like without limitation.

Referring to fig. 3, the light guide tube 5 in embodiment 3 is located at the front end of the sleeve 1, a light guide fiber 9 is disposed in the sleeve 1, the front end of the light guide fiber 9 is connected to the end of the light guide tube 5, a light source irradiates on the light guide fiber 9, and the light guide fiber 9 transmits light to the light guide tube 5 at the front end of the sleeve 1. Only the light guide pipe 5 at the front end of the sleeve 1 conducts light for illumination, the problem that the rear end of the sleeve 1 emits light to interfere with sight can be solved, the light guide pipe 5 is small in size, the light guide optical fiber 9 is small in size, and the effect of reducing the size of the endoscope can be achieved.

In the embodiments, the term "front end" refers to a direction away from an operator when the endoscope is used, and correspondingly, the term "distal end" refers to a direction close to the operator when the endoscope is used.

When the endoscope enters a cavity with a large space such as a stomach, a light source of the common endoscope can only irradiate towards the advancing direction of the endoscope, and cannot irradiate the periphery of the endoscope, so that the interior of the cavity cannot be illuminated. In addition, in order to reduce the diameter of the common endoscope, the diameter of the light source is correspondingly reduced, so that emergent rays are in a point shape, and spots appear in images due to overlarge light intensity, so that the images are unclear. The peripheral surface and the end surface of the light guide pipe 5 are simultaneously illuminated, the interior of the cavity can be illuminated, the condition of each part in the cavity can be clearly observed, light rays are diffused and refracted through the light guide pipe 5, emergent light rays are planar, the light ray intensity is weakened, and light spots are not easy to appear.

The light pipe 5 is made of a high light guide material, which includes but is not limited to materials such as acrylic, PVC, and PMMA. In order to facilitate the endoscope to enter the body, reduce the operation difficulty of doctors and prevent secondary damage to patients, the sleeve 1 and the light guide pipe 5 are flexible pipes.

In order to improve the light guide effect, at least one sealing cavity is arranged in the light guide pipe 5, the sealing cavity is located between the sleeve 1 and the image channel 2 and the working channel 3, light guide liquid 7 is filled in the sealing cavity, and the light outlet rate of the light guide pipe can be improved due to the fact that the light guide liquid 7 absorbs light little, the heat conduction effect of the liquid is good, and the heat dissipation problem of the endoscope imaging device can be solved.

Referring to fig. 4, in embodiment 1, preferably, the inner walls of the working channel 3 and the image channel 2 are both provided with a reflective layer 8, the reflective layer 8 can reflect light rays irradiating the interior of the casing 1 to the outside of the casing 1, and the reflective layer 8 includes, but is not limited to, a reflective paint, a reflective film, a reflective tube, and other structures. The reflecting layer arranged in the image channel 2 mainly prevents light rays beside the image channel 2 from influencing the imaging device 4, prevents phenomena such as halation and facula and the like, and improves imaging quality; the reflecting layer arranged in the working channel 3 mainly plays a role in increasing emergent rays and improving the brightness of the sleeve 1.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An endoscope, characterized by: the method comprises the following steps:

the optical fiber connector comprises a sleeve, wherein an image channel and a working channel are arranged in the sleeve, an imaging device is arranged in the image channel, and at least part of the sleeve body is a light guide section;

the light guide section is connected with the light source, the light guide section is a light guide pipe capable of conducting light, and incident light can be emitted from the peripheral surface and/or the axial surface of the light guide pipe.

2. The endoscope of claim 1, wherein: the light pipe is made of a high light guide material.

3. The endoscope of claim 1, wherein: the light guide pipe is characterized in that at least one sealed cavity is arranged in the light guide pipe body, and light guide liquid is filled in the sealed cavity.

4. An endoscope as claimed in claim 2 or 3, wherein: and a reflective layer is arranged on the inner wall of the image channel and reflects light to the outside of the sleeve.

5. An endoscope as claimed in claim 2 or 3, wherein: and a light reflecting layer is also arranged on the inner wall of the working channel and reflects light to the outside of the sleeve.

6. The endoscope of claim 1, wherein: the sleeve and the light pipe are flexible pipes.

7. The endoscope of claim 1, wherein: the light guide pipe is arranged at the front end of the sleeve, a plurality of light guide optical fibers are arranged in the sleeve, and the front ends of the light guide optical fibers are connected with the tail end of the light guide pipe.

8. The endoscope of claim 1, wherein: the pipe body of the sleeve is a light guide pipe.

9. The endoscope of claim 8, wherein: a light shielding layer is arranged outside the sleeve.