CN214906599U

CN214906599U - Endoscope with heating and defogging functions

Info

Publication number: CN214906599U
Application number: CN202120706029.7U
Authority: CN
Inventors: 陈东; 赵建; 曹锐
Original assignee: Xinguangwei Medical Technology Suzhou Co ltd
Current assignee: Xinguangwei Medical Technology Suzhou Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-11-30
Anticipated expiration: 2031-04-07

Abstract

The utility model discloses an endoscope with heating defogging function, including endoscope eyepiece mechanism, the endoscope mirror body, endoscope mirror body front end is provided with lighting mechanism, imaging mechanism, light and heat conversion mechanism, the rear end of the endoscope mirror body is provided with the light source interface mechanism who is connected with lighting mechanism, the endoscope mirror body is internal also to be provided with light and heat conversion mechanism, light and heat conversion mechanism is including setting up at the internal first light and heat conversion layer and the second light and heat conversion layer of endoscope, be provided with the leaded light layer between light and heat conversion mechanism and imaging mechanism and the mirror body, first light and heat conversion layer is made by light and heat conversion material with second light and heat conversion layer. The endoscope can keep a good illumination effect of the endoscope, can effectively avoid the influence on the endoscope caused by the formation of water mist due to the use of factors such as an ultrasonic knife and the like in the operation process, greatly facilitates the use of an operator, simultaneously improves the observation effect of the endoscope, and reduces the risk of performing an operation by using the endoscope.

Description

Endoscope with heating and defogging functions

Technical Field

The utility model relates to an endoscope technical field, especially an endoscope with heating defogging function.

Background

When the endoscope is used, a light source is needed to provide illumination for the endoscope, and common medical illumination light sources include halogen lamps, xenon lamps and the like. The spectrum of the light sources contains an infrared band with a wide range and high energy, the infrared band has a thermal effect, a large amount of heat can be generated in the actual application process, and tissues such as mucosa and the like are easily burnt and damaged, so that medical accidents are caused.

The invention and the application of the cold light source greatly avoid accidents such as tissue scalding and burning of surgical compress department caused by overheating of the front end of the endoscope, and increase the safety of the endoscopic surgery. However, the application of the cold light source also causes the temperature of the front end of the endoscope to be low, and the end surface of the front end of the endoscope is easy to condense water mist during the operation of the endoscope, so that the lens is blurred, which is particularly obvious when the endoscope is operated in a narrow space. In addition, when the ultrasonic scalpel works in a narrow space, a large amount of high-temperature water vapor is brought instantly, and the water vapor is rapidly condensed on the end face of the front end of the endoscope, so that an operator needs to repeatedly wipe the end face, and the smoothness of the operation is seriously disturbed. Therefore, the anti-fog device which can temporarily increase the temperature of the end face or the endoscope body in the middle of the operation has great clinical practicability, and although the methods such as the lens heating device or the hot water heating device in the operation have certain effects, the frequency of the operation of wiping the endoscope cannot be obviously reduced.

Therefore, it is necessary to design an endoscope with heating and defogging functions, wherein the endoscope itself can absorb a part of the radiation energy of the light source to generate heat, so that the endoscope body and the end surface of the endoscope can always keep higher temperature when the endoscope is operated in a narrow space, and the chance of fogging of the lens is reduced, so that the operation is smoother.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems and designing an endoscope with heating and defogging functions.

The technical scheme of the utility model be, an endoscope with heating defogging function, including endoscope eyepiece mechanism, the endoscope mirror body, endoscope mirror body front end is provided with lighting mechanism, imaging mechanism, light and heat conversion mechanism, the rear end of the endoscope mirror body is provided with the light source interface mechanism who is connected with lighting mechanism, the endoscope mirror body is internal also to be provided with light and heat conversion mechanism.

As a further description of the utility model, the light-heat conversion mechanism is including setting up the endoscope internal portion and the first light-heat conversion layer and the second light-heat conversion layer of front end, first light-heat conversion layer with be provided with the leaded light layer between the second light-heat conversion layer, endoscope body central point is provided with the formation of image light path that the lenticular lens that is certain law setting by a plurality of sections is constituteed.

As a further description of the present invention, the first light-to-heat conversion layer and the second light-to-heat conversion layer are made of a light-to-heat conversion material, and the first light-to-heat conversion layer and the second light-to-heat conversion layer are both attached to the inner wall of the endoscope body.

As a further description of the present invention, the light guide layer is a light guide fiber bundle made of a plurality of light guide fiber filaments, the light guide layer is composed of two parts, one of them is a light guide layer with the first light-to-heat conversion layer the front end face of the second light-to-heat conversion layer aligns, and the other is a light guide layer with the first light-to-heat conversion layer the rear end face of the second light-to-heat conversion layer aligns.

As a further description of the present invention, the sectional shape of the first light-to-heat conversion layer is crescent, and the sectional shape of the second light-to-heat conversion layer is Ω.

As a further description of the present invention, the imaging mechanism includes an objective lens disposed at one end inside the endoscope body, and an objective lens is disposed outside the objective lens.

As the utility model discloses a further description, light source interface mechanism includes the interface fixed body, be provided with the light source interface pipeline that is certain angle setting on the interface fixed body, be provided with light source optic fibre in the light source interface pipeline, light source optical fiber connects external light source.

As a further description of the present invention, the endoscope eyepiece mechanism includes a connector connected to the light source interface mechanism, the connector keeps away from the light source interface mechanism one end integrated into one piece has an eyepiece cover.

The beneficial effects reside in that, the utility model designs an endoscope with heating defogging function, including endoscope eyepiece mechanism, the endoscope mirror body. The front end of the endoscope body is provided with an illuminating mechanism, an imaging mechanism and a photo-thermal conversion mechanism, and the rear end of the endoscope body is provided with a light source interface mechanism connected with the illuminating mechanism. The photothermal conversion mechanism comprises a first photothermal conversion layer and a second photothermal conversion layer, and a light guide layer is arranged between the photothermal conversion mechanism and the imaging mechanism as well as between the photothermal conversion mechanism and the mirror body. The first photothermal conversion layer and the second photothermal conversion layer are made of photothermal conversion materials and are attached to the inner wall of the endoscope body. The light guide layer is composed of two parts, wherein one part of the light guide layer is aligned with the front end faces of the first light-to-heat conversion layer and the second light-to-heat conversion layer, and the other part of the light guide layer is aligned with the rear end faces of the first light-to-heat conversion layer and the second light-to-heat conversion layer. When the endoscope is used, the external light source device transmits light into a light guide layer of the endoscope through the light source interface mechanism, and the light in the light guide layer is transmitted to the front end of the endoscope through total reflection. Then, the partial wave bands in the spectrum emitted by the light guide layer aligned with the rear end faces of the first and second light-heat conversion layers are absorbed and converted by the first and second light-heat conversion layers to generate heat, and the first and second light-heat conversion layers are kept in contact with the inner wall of the endoscope body, so that the heat can be transferred to the endoscope body through the contact face, so that the endoscope body and the front end of the endoscope can keep higher temperature, the other part of light can penetrate through the light-heat conversion layers to be used for illumination, and the light emitted by the light guide layer aligned with the front end faces of the first and second light-heat conversion layers is directly used for illumination. The structure can not only keep the good lighting effect of the endoscope, but also effectively avoid the influence on the endoscope caused by the formation of water mist due to the use of factors such as an ultrasonic knife and the like in the operation process, greatly facilitates the use of an operator, simultaneously also improves the observation effect of the endoscope and reduces the risk of using the endoscope for operation.

Drawings

FIG. 1 is a sectional view of the overall structure of the present invention;

fig. 2 is a schematic structural view of one of the photothermal conversion mechanisms of the present invention;

fig. 3 is a schematic structural view of one of the photothermal conversion mechanisms of the present invention;

fig. 4 is a perspective view of a circular photothermal conversion layer mounting structure according to the present invention;

FIG. 5 is a schematic cross-sectional view of the annular photothermal conversion layer of the present invention;

FIG. 6 is another schematic structural view of a cross section of a circular ring-shaped photothermal conversion layer according to the present invention;

fig. 7 is a schematic view of the overall structure of the present invention;

fig. 8 is a graph of the absorption band of the optical conversion material.

In the figure, 1, an endoscope eyepiece mechanism; 2. an endoscope body; 3. an imaging mechanism; 4. a light source interface mechanism; 5. a photothermal conversion mechanism; 6. a first light-to-heat conversion layer; 7. a second light-to-heat conversion layer; 8. a light guide layer; 9. an imaging optical path; 10. an object lens; 11. an objective lens; 12. an interface fixing body; 13. a light source interface conduit; 14. a linker; 15. an eyepiece cover; 16. an illumination mechanism; 17. an annular photothermal conversion layer.

Detailed Description

First of all, the utility model discloses establish the design original intention, the endoscope has concentrated traditional optics, human engineering, precision machine, modern electron, mathematics, software and equals integrative detecting instrument, the endoscope is in long-time use, some defects have appeared gradually, seriously influence the normal use of endoscope, for example, current optics hard endoscope is when using, there is the difference in temperature because of internal temperature and endoscope, internal vapor can be in a large number of liquefaction one-tenth water droplets at the front end of endoscope, form water smoke, and then cause the field of vision to be fuzzy, influence the observation effect of endoscope, the risk that leads to the operation is great, therefore, the utility model discloses an endoscope with heating defogging function.

The present invention will be described in detail with reference to the accompanying drawings, and as shown in fig. 1 to 7, an endoscope with heating and defogging functions comprises an endoscope eyepiece mechanism 1 and an endoscope body 2, in order to meet the requirement of using the endoscope, an imaging mechanism 3 is arranged at one end of the endoscope body 2, the specific structure of the imaging mechanism 3 will be described in detail, the imaging mechanism 3 comprises an objective lens 10 arranged at one end inside the endoscope body 2, and an objective lens 11 is arranged outside the objective lens 10.

In order to ensure the illumination of the endoscope during the use process, an illumination mechanism 16 and a photothermal conversion mechanism 5 are further arranged at the front end of the endoscope body, and an external light source needs to be introduced into the endoscope during the use process, so a light source interface mechanism 4 connected with the illumination mechanism 16 is arranged at the rear end of the endoscope body 2, and the specific structure of the light source interface mechanism 4 will be described in detail below, wherein the light source interface mechanism 4 comprises an interface fixing body 12, a light source interface pipeline 13 arranged at a certain angle is arranged on the interface fixing body 12, a light source optical fiber is arranged in the light source interface pipeline 13, the light source optical fiber is connected with the external light source, and the external light source generally adopts an LED cold light source, a xenon lamp light source, and the like.

In order to solve the problem that when an endoscope is used, water vapor in a body can be liquefied into small water drops at the front end of the endoscope due to the temperature difference between the temperature in the body and the temperature in the endoscope, so that water mist is formed, the visual field is blurred, and the observation effect of the endoscope is affected, a photothermal conversion mechanism 5 is arranged at the front end and inside the endoscope body 2, and the specific structure of the photothermal conversion mechanism 5 will be described in detail below, generally, the photothermal conversion mechanism 5 at the front end of the endoscope body 2 is provided with two structures, one of the structures is an annular photothermal conversion layer 17 arranged at the front end of the endoscope body 2, as shown in fig. 4-6, the section of the annular photothermal conversion layer 17 is annular, the annular photothermal conversion layer 17 is made of photothermal conversion material, and the optical conversion material has the following characteristics: in addition, as shown in fig. 8, the photothermal conversion material can absorb the near infrared band (e.g. 680-800nm) in the spectrum of the external light source to generate heat; during manufacturing, the material of the photothermal conversion layer can be adjusted to change the wave band which can be absorbed and converted by the material and the optical transmittance of the material; under this structure, the light-heat conversion mechanism 5 inside the endoscope body 2 has two kinds of arrangement modes, the first kind does, set up the first light-heat conversion layer 6 with the contact of endoscope body 2 inner wall in the endoscope body 2, first light-heat conversion layer 6 can be replaced by the heat conduction silk layer in the in-service use process, still be provided with second light-heat conversion layer 7 in the endoscope body 2, be provided with leaded light layer 8 between first light-heat conversion layer 6 and second light-heat conversion layer 7, the second kind does, be provided with second light-heat conversion layer 7 in the endoscope body 2, be provided with leaded light layer 8 between second light-heat conversion layer 7 and endoscope body 2 inner wall, when this mode uses, the light of leaded light layer 8 transmission, a part sees through at annular light-heat conversion layer, be used for the illumination, a part is absorbed by light-heat conversion layer and produces the heat.

In another structure of the photothermal conversion mechanism 5 at the front end of the endoscope body 2, as shown in fig. 2 to 3, there are provided two layers, that is, a first photothermal conversion layer 6 and a second photothermal conversion layer 7 which are provided inside the endoscope body 2, respectively, the first photothermal conversion layer 6 having a crescent cross-sectional shape, the second photothermal conversion layer 7 having an omega cross-sectional shape, the first photothermal conversion layer 6 and the second photothermal conversion layer 7 being made of photothermal conversion material, in this structure, there are two arrangement modes for the photothermal conversion mechanism 5 inside the endoscope body 2, the first photothermal conversion layer 6 which is provided inside the endoscope body 2 and contacts the inner wall of the endoscope body 2, the first photothermal conversion layer 6 can be replaced with a heat conductive wire layer during actual use, the second photothermal conversion layer 7 is further provided inside the endoscope body 2, and a light guide layer 8 is provided between the first photothermal conversion layer 6 and the second photothermal conversion layer 7, the second is that a second photothermal conversion layer 7 is arranged in the endoscope body 2, and a light guide layer 8 is arranged between the second photothermal conversion layer 7 and the inner wall of the endoscope body 2, when the method is used, part of light transmitted by the light guide layer 8 penetrates through the annular photothermal conversion layer for illumination, and part of light is absorbed by the annular photothermal conversion layer and generates heat.

In order to ensure the entire heating function of the endoscope, both the first photothermal conversion layer 6 and the second photothermal conversion layer 7 are bonded to the inner wall of the endoscope 2, and the entire endoscope 2 is heated by bonding.

In order to conduct light to external light source, be provided with leaded light layer 8 between first light-to-heat conversion layer 6 and second light-to-heat conversion layer 7, the inside imaging light path 9 that is certain law setting of a plurality of sections that is provided with of leaded light layer 8, leaded light layer 8 adopts light guide fiber to make, and the outer wall of leaded light layer 8 is laminated with first light-to-heat conversion layer 6, second light-to-heat conversion layer 7, the endoscope mirror body 2 inner wall respectively mutually.

The light guide layer 8 is composed of two parts, wherein one part of the light guide layer 8 is aligned with the front end faces of the first light-to-heat conversion layer 6 and the second light-to-heat conversion layer 7, and the other part of the light guide layer 8 is aligned with the rear end faces of the first light-to-heat conversion layer 6 and the second light-to-heat conversion layer 7.

When the endoscope is used, external light source equipment transmits light into a light guide layer 8 of the endoscope through a light source interface mechanism 4, and the light in the light guide layer 8 is transmitted to the front end of the endoscope through total reflection; then, part of the wavelength bands in the spectrum emitted by the light guide layer aligned with the rear end faces of the first photothermal conversion layer 6 and the second photothermal conversion layer 7 are absorbed and converted by the first photothermal conversion layer 6 and the second photothermal conversion layer 7 to generate heat, and the first photothermal conversion layer 6 and the second photothermal conversion layer 7 are kept in contact with the inner wall of the endoscope body, so that the heat is transferred to the endoscope body through the contact face, so that the endoscope body and the front end of the endoscope can both keep high temperature, the other part of the light can penetrate through the photothermal conversion layer for illumination, and the light emitted by the light guide layer aligned with the front end faces of the first photothermal conversion layer 6 and the second photothermal conversion layer 7 is directly used for illumination; the structure can not only keep the good lighting effect of the endoscope, but also effectively avoid the influence on the endoscope caused by the formation of water mist due to the use of factors such as an ultrasonic knife and the like in the operation process, greatly facilitates the use of an operator, simultaneously also improves the observation effect of the endoscope and reduces the risk of using the endoscope for operation.

The endoscope eyepiece mechanism 1 facilitates observation of a user, and the specific structure of the endoscope eyepiece mechanism 1 will be described in detail below, the endoscope eyepiece mechanism 1 includes a connecting body 14 connected to the light source interface mechanism 4, an eyepiece cover 15 is disposed at one end of the connecting body 14 away from the light source interface mechanism 4, and the eyepiece cover 15 and the connecting body 14 are integrally formed.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The endoscope with the heating and defogging functions is characterized by comprising an endoscope eyepiece mechanism (1) and an endoscope body (2), wherein an illuminating mechanism (16), an imaging mechanism (3) and a photo-thermal conversion mechanism (5) are arranged at the front end of the endoscope body (2), a light source interface mechanism (4) connected with the illuminating mechanism (16) is arranged at the rear end of the endoscope body (2), and the photo-thermal conversion mechanism (5) is also arranged inside the endoscope body (2).

2. The endoscope with the heating and defogging function according to claim 1, wherein the photothermal conversion mechanism (5) comprises a first photothermal conversion layer (6) and a second photothermal conversion layer (7) which are arranged inside and at the front end of the endoscope body (2), a light guide layer (8) is arranged between the first photothermal conversion layer (6) and the second photothermal conversion layer (7), and an imaging light path (9) consisting of a plurality of regularly arranged cylindrical lenses is arranged at the central part of the endoscope body (2).

3. The endoscope with the heating and defogging function according to claim 2, wherein the first photothermal conversion layer (6) and the second photothermal conversion layer (7) are made of photothermal conversion materials, and the first photothermal conversion layer (6) and the second photothermal conversion layer (7) are attached to the inner wall of the endoscope body (2).

4. The endoscope with heating and defogging functions as recited in claim 2, wherein the light guiding layer (8) is a light guiding fiber bundle made of a plurality of light guiding fiber filaments, and the light guiding layer (8) is composed of two parts, wherein one part of the light guiding layer is aligned with the front end surfaces of the first light-to-heat conversion layer (6) and the second light-to-heat conversion layer (7), and the other part of the light guiding layer is aligned with the rear end surfaces of the first light-to-heat conversion layer (6) and the second light-to-heat conversion layer (7).

5. The endoscope having the heating and defogging function according to claim 2, wherein a sectional shape of the first photothermal conversion layer (6) is crescent-shaped, and a sectional shape of the second photothermal conversion layer (7) is Ω -shaped.

6. An endoscope with heating and defogging functions as claimed in claim 1, wherein the imaging mechanism (3) comprises an object lens (10) arranged at one end inside the endoscope body (2), and an object lens (11) is arranged outside the object lens (10).

7. The endoscope with the heating and defogging functions as recited in claim 1, wherein the light source interface mechanism (4) comprises an interface fixing body (12), a light source interface pipeline (13) arranged at a certain angle is arranged on the interface fixing body (12), and a light source optical fiber is arranged in the light source interface pipeline (13) and is connected with an external light source.

8. An endoscope with heating and defogging functions as claimed in claim 1, wherein the endoscope eyepiece mechanism (1) comprises a connecting body (14) connected with the light source interface mechanism (4), and an eyepiece cover (15) is integrally formed at one end of the connecting body (14) far away from the light source interface mechanism (4).