CN216248581U

CN216248581U - Optical fiber light guide superfine endoscope with preposed light source

Info

Publication number: CN216248581U
Application number: CN202123052734.9U
Authority: CN
Inventors: 韩沁驰
Original assignee: Suzhou Keqin Micro Vision Medical Equipment Co ltd
Current assignee: Suzhou Keqin Micro Vision Medical Equipment Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-04-08
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses an optical fiber light guide superfine endoscope with a front-mounted light source, which comprises a handheld part, a protective sleeve and a camera shooting assembly, wherein one end of the protective sleeve is connected with the handheld part, the opposite end is internally provided with the camera shooting assembly, the camera shooting assembly comprises a light-emitting piece, a camera shooting module and a plurality of light guide optical fibers, the light-emitting piece and the camera shooting module are electrically connected with the handheld part, an accommodating space is formed between the camera shooting module and the protective sleeve, the plurality of light guide optical fibers are arranged around the camera shooting module and are fully distributed in the accommodating space, and the plurality of light guide optical fibers extend towards the light-emitting piece and are in contact with the light-emitting piece. By arranging the light source in front, the utility model can effectively reduce the outer diameter of the endoscope to be less than 1mm, reduce the cost, reduce the light loss, reduce the assembly difficulty and prolong the service life.

Description

Optical fiber light guide superfine endoscope with preposed light source

Technical Field

The utility model relates to the technical field of endoscopes, in particular to an optical fiber light guide superfine endoscope with a front light source, which can be used in the industrial and medical fields.

Background

At present, endoscopes widely used in the digestive tract, urinary system and other aspects for daily clinical examination and treatment are generally large in diameter, and for examination and treatment of small vessels such as coronary arteries and fallopian tube lumens with a diameter of less than 1mm in some cardiovascular systems, endoscopes with a smaller diameter are required.

With the successful development of high-quality fine glass optical fibers, the development of small-size endoscopes is promoted, and at present, some small-caliber optical fiber endoscopes are successfully developed and applied to clinic. However, these small-sized fiber optic endoscopes are generally imported devices that are relatively expensive and not conducive to widespread use. In addition, these small-sized optical fiber endoscopes usually use a combination of illumination optical fibers and image transmission optical fibers to complete illumination and image transmission, or use a combination of illumination optical fibers and electronic imaging technology to complete illumination and image transmission, the required cold light source is usually disposed in the handle or in the image host or equipped with a separate cold light source host, the light generated by the cold light source is conducted to the front end through the optical fibers, which easily causes light energy loss, and the optical fibers are disposed in the whole endoscope body, which easily causes the problems of difficult assembly, high cost and easy damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an optical fiber light guide superfine endoscope with a front-mounted light source, which has the advantages of low cost, low light loss, low assembly difficulty, high reliability and superfine performance (the outer diameter is less than 1 mm).

In order to achieve the purpose, the utility model provides an optical fiber light guide superfine endoscope with a front-mounted light source, which comprises a handheld part, a protective sleeve and a camera shooting assembly, wherein one end of the protective sleeve is connected with the handheld part, the opposite end of the protective sleeve is internally provided with the camera shooting assembly, the camera shooting assembly comprises a light-emitting piece, a camera shooting module and a plurality of light guide optical fibers, the light-emitting piece and the camera shooting module are electrically connected with the handheld part, an accommodating space is formed between the camera shooting module and the protective sleeve, the plurality of light guide optical fibers are arranged around the camera shooting module and fully distributed in the accommodating space, and the plurality of light guide optical fibers extend towards the light-emitting piece and are connected with the light-emitting piece.

Preferably, the luminous element is an LED luminous element.

Preferably, the ends of the plurality of light guide fibers contacting the light emitting member are arranged in a rectangular shape.

Preferably, the protective sleeve comprises a front sleeve and a rear sleeve, the rear sleeve is electrically connected with the handheld portion, the front sleeve is sleeved on the rear sleeve, and the camera shooting assembly is arranged in the front sleeve.

Preferably, the front sleeve is a tubular member with the length of 6-8 mm.

Preferably, the protective sleeve is a tubular member with the outer diameter dimension of less than 1 mm.

Preferably, the light guide optical fibers are connected with the light emitting surface of the light emitting piece in a zero-to-zero point contact mode.

Preferably, the contact part of the light guide optical fibers and the light emitting element is provided with black glue.

Preferably, the camera module is a CMOS camera module.

The utility model has the beneficial effects that:

(1) according to the optical fiber light guide superfine endoscope with the front light source, the light loss can be reduced by arranging the light emitting piece at the front end, so that the luminous flux reaches the maximum utilization rate, the outer diameter of the endoscope can be smaller than 1mm, and the light source of the endoscope can meet the use requirement when the outer diameter is smaller than 1 mm.

(2) According to the optical fiber light guide superfine endoscope with the front light source, the light emitting piece is arranged at the front end, so that the using length of the light guide optical fiber can be reduced, the cost is further reduced, the assembly difficulty is reduced, the damage risk is reduced, and the service life is prolonged. The endoscope also has the advantages of simple structure and suitability for mass production.

(3) The optical fiber light guide superfine endoscope with the preposed light source also has the advantage of superfine (the outer diameter is less than 1mm), can meet different application scenes, and reduces the wound caused by the endoscope after insertion, particularly the wound of a fragile organ of a human body.

Drawings

FIG. 1 is a perspective view of a fiber optic light guide endoscope in accordance with an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a fiber optic light guide microendoscope;

FIG. 3 is a perspective view of an optical fiber light guide ultra-fine endoscope with a sheath tube removed;

fig. 4 is a schematic view of a plurality of light guide optical fibers.

Reference numerals:

10. sheath pipe, 11, front sheath, 20, camera module, 21, luminous element, 22, camera module, 23, leaded light optic fibre.

Detailed Description

The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

The optical fiber light guide superfine endoscope with the preposed light source has the outer diameter size smaller than 1mm, and the cost can be effectively reduced, the light loss can be reduced, the assembly difficulty can be reduced, and the service life can be prolonged by preposing the light source.

As shown in fig. 1, the optical fiber light guide ultra-slim endoscope with a front light source according to an embodiment of the present invention includes a handheld portion (not shown), a sheath tube 10 and a camera assembly 20. The sheath tube 10 is a tubular member, one end of which is connected to the hand-held portion, and the opposite end is a free end, which can be inserted into a body cavity, an internal organ cavity, and the like, and is used for protecting components (such as the camera module 20) therein. The camera assembly 20 is used to obtain image information of an image of a desired location, and is disposed in the free end of the sheath tube 10, that is: one end of the sheath tube 10 is connected to the hand-held portion, and the opposite end is fitted with a camera assembly 20, the camera assembly 20 being further electrically connected to the hand-held portion.

During the implementation, operating personnel directly stretches into human narrow chamber organ with protective sheath 10 or cooperate corresponding operation sheath pipe to get into the unable narrow position that gets into of conventional endoscope, and subassembly 20 of making a video recording can acquire the image information of relevant position to supply the doctor to diagnose, if use periphery lung nodule operation as an example: the endoscope and the operation sheath tube are assembled in a combined way, under the guidance of a visual image provided by the camera assembly 20 on the endoscope, the endoscope enters a bronchus part with a focus from a trachea, enters peripheral lung tissues after the puncture direction and the puncture distance are confirmed, and is withdrawn after the positioning is confirmed again in an ultrasonic or magnetic navigation way and the like, a biopsy instrument is arranged for biopsy diagnosis, and then an ablation instrument is arranged for treatment.

As shown in fig. 1, the sheath tube 10 includes a front sleeve 11 and a rear sleeve, one end of the rear sleeve is connected to the hand-held portion, the opposite end is connected to the front sleeve 11, and the camera module 20 is fitted in the front sleeve 11. In this embodiment, the front sleeve 11 is sleeved outside the rear sleeve, and of course, in other embodiments, the rear sleeve may also be sleeved outside the front sleeve 11, which may be selected according to actual requirements.

As shown in fig. 1 to 4, the camera module 20 includes a light emitting element 21, a camera module 22 and a plurality of light guide fibers 23. The illuminating part 21 is used for illuminating, is arranged in the front sleeve 11 and is powered through a cable b; the camera module 22 is used for acquiring image information, performs signal transmission through a cable a, is arranged in the front sleeve 11 and is located at the front end of the luminous element 21, that is: the illuminating part 21 is positioned between the camera module 22 and the handheld part, and an accommodating space is formed between the camera module 22 and the front sleeve 11 and can be used for assembling a light guide optical fiber 23; the plurality of light guide optical fibers 23 are arranged around the camera module 22 and fully distributed in the accommodating space, and the plurality of light guide optical fibers 23 extend to the light emitting piece 21 to be in contact with the light emitting piece 21, so that light generated by the light emitting piece 21 can be transmitted to the front end of the camera module 22, and required light is provided for the camera module 22 to acquire image information.

During implementation, a plurality of light guide optical fibers 23 are made into an independent and detachable light guide part according to the size of the light emitting surface of the light emitting piece 21, the light guide part and the end part connected with the light emitting piece 21 are gathered together to form a shape matched with the light emitting surface, and if the light emitting surface is rectangular, the plurality of light guide optical fibers are gathered together to form a rectangular shape. After making leaded light spare part, all polish the both ends of leaded light spare part and handle, wherein, the tip of being connected with illuminating part 21 adopts the zero to zero point to glue the mode of encapsulation and is connected with the light emitting area of illuminating part 21, and the looks remote site sets up around camera module 22 to leaded light optic fibre 23 around camera module 22 still need carry out some glue and handle, fixes camera module 22 and leaded light optic fibre 23, improves the stability of product.

In this embodiment, the light emitting member 21 is an LED light emitting member, and the light emitting member 21 has a rectangular light emitting surface. The camera module 22 is a CMOS camera module. The light guide fiber 23 is made of a glass fiber, but may be made of other materials, such as a plastic fiber, which has the advantage of small outer diameter, so that the outer diameter of the sheath tube 10 in the endoscope is smaller than 1 mm. In addition, the length of the light guide fiber 23 can be set according to the length of the camera module 22 and the actual assembly requirement.

Further, the light guide fibers 23 are detachable components, and since the area S of the rectangular end portions of the light guide fibers is smaller than the area S' of the accommodating space, the number of the light guide fibers 23 can be freely adjusted according to actual requirements in the actual assembly process, so that the accommodating space is fully filled with the light guide fibers 23. The area S' of the accommodating space is constituted by the area of the gap between the camera module 22 and the front sleeve 11.

Further, a black glue is disposed at a contact portion of the light guide fiber 23 and the light emitting member 21, and the black glue is used for concentrating and conducting light in the light guide fiber 23, preventing light from being emitted from the light guide fiber 23 and further preventing generation of stray light.

According to the optical fiber light guide superfine endoscope with the front light source, the light-emitting piece 21 is arranged at the front end, so that light loss can be reduced, the maximum utilization rate of luminous flux can be achieved, and further, when the outer diameter of the endoscope is smaller than 1mm, the light source of the endoscope can meet the use requirement. Meanwhile, the light-emitting piece 21 is arranged at the front end, so that the use length of the light guide optical fiber 23 can be reduced, the cost is reduced, the assembly difficulty is reduced, the damage risk is reduced, and the service life is prolonged. The optical fiber light guide superfine endoscope also has the advantages of simple structure and suitability for mass production.

In addition, the optical fiber light guide superfine endoscope with the front light source is characterized in that the light emitting piece 21 is arranged at the front end and is positioned at the rear side of the camera module 22, so that the outer diameter of the endoscope can be smaller than 1mm, and further, fine narrow-cavity organs and small animals can be imaged, such as when the endoscope is applied to the lung, the biopsy of nodes around the lung can be guided, and the endoscope is applied to the intracochlear imaging in the ear. Meanwhile, the trauma caused by the endoscope after insertion can be reduced, in particular the trauma of the fragile organs of the human body can be reduced, and the damage to brain tissues can be obviously reduced in the operation of intracranial aneurysm of the brain. The optical fiber light guide superfine endoscope also has the advantage of one-time use, and can reduce cross infection.

Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.

Claims

1. The utility model provides a superfine endoscope of optic fibre leaded light of leading light source, a serial communication port, the superfine endoscope of optic fibre leaded light includes handheld portion, protecting pipe and the subassembly of making a video recording, the one end of protecting pipe with handheld portion links to each other, is equipped with in the looks remote site the subassembly of making a video recording, the subassembly of making a video recording includes illuminating part, camera module and a plurality of leaded light optic fibre, illuminating part and camera module all with handheld portion electricity is connected, camera module with be formed with accommodation space, a plurality of between the protecting pipe leaded light optic fibre arrange in around camera module and be covered with the accommodation space, and a plurality of leaded light optic fibre to illuminating part direction extend and with the illuminating part is connected.

2. The fiber optic light guide ultrafine endoscope according to claim 1, wherein the light emitting element is an LED light emitting element.

3. The optical fiber light guide ultrafine endoscope according to claim 1 or 2, wherein end portions of a plurality of the light guide optical fibers contacting with the light emitting member are arranged in a rectangular shape.

4. The superfine endoscope with optical fiber and light guide according to claim 1, wherein the sheath tube comprises a front sleeve and a rear sleeve, the rear sleeve is connected with the hand-held part, the front sleeve is sleeved on the rear sleeve, and the camera module is arranged in the front sleeve.

5. The fiber optic light guide ultrafine endoscope according to claim 4, wherein the front sleeve is a tubular member with a length of 6-8 mm.

6. The fiber optic light guide ultrafine endoscope according to claim 1 or 4, wherein the sheath tube is a tubular member having an outer diameter dimension of less than 1 mm.

7. The superfine endoscope of claim 1, wherein a plurality of light guide fibers are provided with black glue at the contact part with the light emitting element.

8. The optical fiber light guide ultrafine endoscope according to claim 1, wherein a plurality of the light guide optical fibers are connected with the light emitting surface of the light emitting element in a zero-to-zero point contact manner.