CN219353839U - Endoscope device - Google Patents

Abstract

The utility model provides an endoscope device, which belongs to the technical field of medical equipment and comprises: a body; the connector seat is arranged on the body and comprises a light guide sleeve and an air path sleeve; the connector is matched and spliced with the connector seat and comprises a light guide connecting structure inserted into the light guide sleeve and an air supply connecting structure inserted into the air passage sleeve; wherein the light guide connection structure and/or the gas path sleeve is a flexible structure. According to the endoscope device, the light guide connecting structure and/or the air passage sleeve are/is arranged to be of the flexible structure, and when the connector and the connector seat are spliced, the flexibility of the light guide connecting structure and/or the air passage sleeve is used for compensating processing errors and assembly errors of parts, so that accurate butt joint of an optical path and an air passage is guaranteed.

Description

Endoscope device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an endoscope device.

Background

The endoscope is a medical equipment integrating light, mechanical and electrical technologies, and can be connected with a light source device, a video processor and the like as peripheral equipment through a connector to observe, diagnose and treat the cavities of human body cavities and organs. The current more efficient connector system solution is to directly connect the integrated endoscope connector integrated with the connector structure for providing gas, optical illumination, image signal and the like transmission with the connector base of the light source device. However, in the prior art, when the connector is docked with the connector holder, there are cases where a plurality of rigid structures (gas, light, electricity, etc.) are docked at the same time, so that a plurality of rigid connection structures are required to be docked accurately, and there is a very high requirement on the processing precision and the assembly precision of the parts, and failure of the whole connector function can be caused by failure of any connection structure due to unreliable docking.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects that the connector of the endoscope device in the prior art is rigidly abutted with the connector seat and the requirements on the processing precision and the assembly precision of parts are high, so as to provide the endoscope device.

In order to solve the above-described problems, the present utility model provides an endoscope apparatus including: a body; the connector seat is arranged on the body and comprises a light guide sleeve and an air path sleeve; the connector is matched and spliced with the connector seat and comprises a light guide connecting structure inserted into the light guide sleeve and an air supply connecting structure inserted into the air passage sleeve; wherein the light guide connection structure and/or the gas path sleeve is a flexible structure.

Optionally, the connector includes a cylinder, the light guide connection structure and the air supply connection structure are both arranged at the end of the cylinder in a protruding manner along the axial direction of the cylinder, and the light guide connection structure and the air supply sleeve are both flexible structures.

Optionally, an electrical contact socket and a number of electrical contact pins are also included, a number of said electrical contact pins being arranged around said post, said electrical contact pins being in abutment with said electrical contact socket.

Optionally, the light guide connection structure includes a first light guide body, a second light guide body and an elastic element, wherein the first light guide body is sleeved outside the second light guide body in a certain gap, the elastic element is sleeved outside the first light guide body in a certain gap, and two ends of the elastic element are respectively connected with the first light guide body and the second light guide body.

Optionally, the first light pipe body is provided with spacing pin, the second light pipe body has seted up spacing hole, spacing pin inserts and locates in the spacing hole and clearance setting.

Optionally, the periphery cover of elastic component is equipped with the protective sheath, the both ends of protective sheath respectively with first light pipe body with second light pipe body is connected, the outer wall of protective sheath with the inner wall clearance setting of light guide sleeve.

Optionally, the light guide connection structure further includes a light guide connector, and the light guide connector is encapsulated at the front end of the first light guide body.

Optionally, a heat dissipation block is disposed in the connector base, and the light guide connector is inserted into the heat dissipation block.

Optionally, an air supply socket is formed in the connector seat, the air passage sleeve is inserted into the air supply socket, and the air passage sleeve is communicated with an air source.

Optionally, the front end of the air supply connection structure is in a conical structure.

The utility model has the following advantages:

1. according to the endoscope device, the light guide connecting structure and/or the air passage sleeve are/is arranged to be of the flexible structure, and when the connector and the connector seat are spliced, the flexibility of the light guide connecting structure and/or the air passage sleeve is used for compensating processing errors and assembly errors of parts, so that accurate butt joint of an optical path and an air passage is guaranteed.

2. The endoscope device provided by the utility model has the advantages that the light guide connecting structure, the air supply connecting structure and the electric contact pins are arranged at the front end face of the cylinder, the light guide connecting structure and the air passage sleeve are both flexible structures, when the connector and the connector seat are spliced, the flexibility of the light guide connecting structure and the air passage sleeve is utilized to compensate the processing errors and the assembly errors of parts, and the precise butt joint of the light passage, the air passage and the circuit is ensured.

3. The endoscope device provided by the utility model is characterized in that the first light guide body and the second light guide body are sleeved and arranged in a clearance way, the elastic piece is sleeved outside the first light guide body and arranged in a clearance way, so that deformation spaces are formed between the first light guide body and the second light guide body and between the first light guide body and the elastic piece, and smooth splicing of the light guide connecting structure and the light guide sleeve is realized.

4. According to the endoscope device, the radiating block is arranged to radiate heat of the light guide connector, so that the light guide connector is prevented from overheating, and the service life of the light guide connector is prolonged.

5. According to the endoscope device provided by the utility model, the air passage sleeve is made of the flexible material, so that the air passage sleeve can generate flexible deformation when the air supply connecting structure and the air passage sleeve are connected, and the air supply connecting structure and the air passage sleeve are ensured to be connected in a smooth inserting manner.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a partial perspective view of an endoscope apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic view showing the structure of a connector, a universal cable, an operation portion, and an insertion portion provided by an embodiment of the present utility model;

FIG. 3 shows a schematic structural view of a connector according to an embodiment of the present utility model;

FIG. 4 illustrates a partial cross-sectional view of a connector receptacle and connector mated connection provided by an embodiment of the present utility model;

FIG. 5 illustrates a partial cross-sectional view of a connector provided by an embodiment of the present utility model;

FIG. 6 shows an exploded view of a light guide connection structure provided by an embodiment of the present utility model;

FIG. 7 illustrates a partial cross-sectional view of a light guide connection structure and a light guide sleeve provided by an embodiment of the present utility model;

FIG. 8 illustrates a partial cross-sectional view of a light guide sleeve with a light guide connection structure deflected as provided by an embodiment of the present utility model;

FIG. 9 is a partial cross-sectional view illustrating an air supply connection structure and an air passage sleeve according to an embodiment of the present utility model;

fig. 10 is a partial sectional view illustrating the air supply connection structure according to the embodiment of the present utility model when the air supply connection structure is deflected and the air passage sleeve.

Reference numerals illustrate:

100. a body; 110. a light source unit; 120. a video processing unit; 10. a connector base; 11. a light guide sleeve; 12. an air path sleeve; 13. an electrical contact base; 14. an air supply jack; 15. a guide pin; 16. an abutment surface; 17. an elastic limit structure; 171. a leaf spring; 172. a limit ball; 18. a heat dissipation block; 20. a connector; 21. a light guide connection structure; 211. a first light pipe body; 2111. limit pins; 2112. a first trench; 212. a second light pipe body; 2121. a limiting hole; 2122. a second trench; 213. an elastic member; 214. a protective sleeve; 215. a light guide connector; 216. glue; 217. a bundle of light guides; 22. an air supply connection structure; 23. an electrical contact pin; 24. a guide groove; 25. a flange structure; 26. a column; 27. a connecting ring; 30. a universal cable; 40. an operation unit; 50. an insertion portion.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. 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 utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

One embodiment of an endoscopic device as shown in fig. 1 to 10, comprises: the connector comprises a body 100, a connector seat 10 and a connector 20, wherein the connector seat 10 is arranged on the body 100, and the connector 20 is matched and spliced with the connector seat 10. The connector base 10 comprises a light guide sleeve 11 and an air passage sleeve 12, the connector 20 comprises a light guide connecting structure 21 and an air supply connecting structure 22, the light guide connecting structure 21 is inserted into the light guide sleeve 11, and the air supply connecting structure 22 is inserted into the air passage sleeve 12. Wherein the light guide connection structure 21 and/or the gas circuit sleeve 12 are flexible structures.

Optionally, at least one of the light guide connection structure 21, the air passage sleeve 12 is a flexible structure. If the light guide connecting structure 21 is a flexible structure, the light guide sleeve 11 of the light path and the light guide connecting structure 21 realize accurate butt joint; if the air passage sleeve 12 is of a flexible structure, the air passage sleeve 12 of the air passage and the air supply connecting structure 22 are in accurate butt joint. In the present embodiment, the light guide connection structure 21 and the air passage sleeve 12 are each provided as a flexible structure.

When the connector 20 and the connector base 10 are plugged, the flexibility of the light guide connecting structure 21 and the air path sleeve 12 is utilized to compensate the machining errors and the assembly errors of the parts, so that the precise butt joint of the light path and the air path is ensured.

It should be noted that, the "flexible structure" may be a flexible component (may have a machining error) formed by using a flexible material to make an integral body, or may be a flexible structure formed by mutually assembling and combining various parts (may have an assembling error). The flexibility of the flexible structure is utilized to compensate for machining errors and assembly errors.

As shown in fig. 3, the connector 20 includes a cylindrical body 26, and the light guide connection structure 21 and the air supply connection structure 22 are each protruded from an end portion of the cylindrical body 26 in an axial direction of the cylindrical body 26.

As shown in fig. 3 and 4, the endoscopic device further comprises an electrical contact socket 13 and a number of electrical contact pins 23, the number of electrical contact pins 23 being arranged around the post 26, the electrical contact pins 23 being in abutment with the electrical contact socket 13. That is, referring to fig. 3, the electrical contact pins 23 are disposed on the front end surface of the post 26, and a plurality of electrical contact pins 23 are arranged in a ring shape. In this embodiment, the light guide connection structure 21 and the air path sleeve 12 are flexible structures, ensuring accurate docking of the electrical contact pins 23 with the electrical contact sockets 13.

Therefore, in the present embodiment, by providing the light guide connection structure 21 and the air passage sleeve 12 as flexible structures, accurate interfacing of the light passage, the air passage, and the electric circuit can be ensured.

It will be understood, of course, that in this embodiment, the electrical connection is achieved using the electrical contact pins 23 and the electrical contact pads 13, and that the electrical contact pins 23 and the electrical contact pads 13 are of rigid docking structure; in other alternative embodiments, the structure for the circuit connection may be other structures, and may be provided as a rigid structure or a flexible structure.

As shown in fig. 5 to 8, the light guide connection structure 21 includes a first light guide body 211, a second light guide body 212, and an elastic member 213, where the first light guide body 211 is sleeved outside the second light guide body 212 with a certain gap, the elastic member 213 is sleeved outside the first light guide body 211 with a certain gap, and two ends of the elastic member 213 are respectively connected with the outer wall of the first light guide body 211 and the outer wall of the second light guide body 212. That is, referring to fig. 5 to 8, the rear end of the first light guide body 211 is sleeved outside the front end of the second light guide body 212 and is disposed in a gap, and the elastic member 213 is sleeved outside the rear end of the first light guide body 211 and is disposed in a gap.

In this embodiment, the elastic member 213 is a spring.

The first light guide body 211 and the second light guide body 212 are sleeved and arranged in a clearance way, the elastic piece 213 is sleeved outside the first light guide body 211 and arranged in a clearance way, so that deformation spaces are formed between the first light guide body 211 and the second light guide body 212 and between the first light guide body 211 and the elastic piece 213, and smooth plug-in connection of the light guide connecting structure 21 and the light guide sleeve 11 is realized.

It should be noted that, referring to fig. 4, 6 to 10, the "rear end" refers to the right end in the drawing, and the "front end" refers to the left end in the drawing.

In this embodiment, as shown in fig. 3, 4 and 6, the light guide connection structure 21 further includes a light guide connector 215, and the light guide connector 215 is encapsulated at the front end of the first light guide body 211, that is, the light guide connector 215 is sleeved outside the first light guide body 211 and is located at the front end of the first light guide body 211.

In the present embodiment, as shown in fig. 4, the heat dissipation block 18 is disposed in the connector holder 10, and the light guide connector 215 is inserted into the heat dissipation block 18. By providing the heat dissipation block 18 to dissipate heat from the light guide connector 215, it is ensured that the light guide connector 215 will not overheat, thereby prolonging the service life of the light guide connector 215.

As shown in fig. 5 to 8, the first light pipe body 211 is provided with a limit pin 2111, the second light pipe body 212 is provided with a limit hole 2121, and the limit pin 2111 is inserted into the limit hole 2121 and is arranged in a clearance. In this embodiment, as shown in fig. 7 and 8, a limit pin 2111 is provided at the rear end of the first light pipe body 211, and a limit hole 2121 is provided at the front end of the second light pipe body 212.

In this embodiment, as shown in fig. 5 to 8, the outer periphery of the elastic member 213 is sleeved with a protecting sleeve 214, two ends of the protecting sleeve 214 are respectively connected with the outer wall of the first light guide body 211 and the outer wall of the second light guide body 212, and the outer wall of the protecting sleeve 214 is disposed in a gap with the inner wall of the light guide sleeve 11. Specifically, the protective sleeve 214 may be made of silica gel.

It should be noted that, referring to fig. 7, after the light guide connector 215 is inserted into the heat dissipation block 18, there may be a situation that the pull-out force is slightly larger due to the tight fit, in this case, the connector 20 is pulled out, the protective sleeve 214 and the elastic member 213 of the light guide connecting structure 21 will stretch a certain distance, and when the stretch distance reaches the gap D between the limit pin 2111 and the limit hole 2121 (at this time, the protective sleeve 214 and the elastic member 213 are both within the elastic limit), the limit pin 2111 and the limit hole 2121 are contacted, and the pull force is continuously applied to the limit pin 2111 by the limit hole 2121, so as to ensure the smooth pull-out of the light guide connector 215. When the connector 20 is pulled out, the clearance D is restored between the limit pins 2111 and the limit holes 2121 of the photoconductive connecting structure 21, and the protective sheath 214 and the elastic member 213 are restored to the original state.

It should be noted that, referring to fig. 7, a gap a is formed between the inner wall of the rear end of the first light guide body 211 and the outer wall of the front end of the second light guide body 212, and a gap B is formed between the inner wall of the elastic member 213 and the outer wall of the first light guide body 211, wherein the gap B is greater than or equal to the gap a. A gap C is arranged between the inner wall of the light guide sleeve 11 and the outer wall of the protective sleeve 214, and the gap C is larger than or equal to the gap A.

It should be further noted that, referring to fig. 8, when a machining error or an assembling error occurs in a part, the second light guide body 212 is deflected to a certain extent relative to the ideal position, and at this time, the light guide connecting structure 21 performs position compensation, so that the light guide connecting structure 21 still can smoothly enter the light guide sleeve 11, and the light guide connector 215 is aligned with the light path.

In this embodiment, as shown in fig. 7 and 8, the rear end outer wall of the first light pipe body 211 is provided with a first groove 2112, the front end outer wall of the second light pipe body 212 is provided with a second groove 2122, and two ends of the elastic member 213 are respectively connected to the first groove 2112 and the second groove 2122 through solder materials.

In this embodiment, as shown in fig. 7 and 8, the joint between the protective sleeve 214 and the outer wall of the first light guide body 211 and the joint between the outer wall of the second light guide body 212 are sealed and bonded by using glue 216, so as to ensure the overall tightness of the light guide connection structure 21.

In this embodiment, as shown in fig. 6, the bundle of light guides 217 is located within the light guide connector 215, the first light guide body 211, and the second light guide body 212.

As shown in fig. 9 and 10, an air supply socket 14 is formed in the connector holder 10, and an air passage sleeve 12 is inserted into the air supply socket 14, and the air passage sleeve 12 communicates with an air source. Specifically, in this embodiment, as shown in fig. 9 and 10, the rear end of the air passage sleeve 12 allows the air supply connection structure 22 to be inserted, the front end of the air passage sleeve 12 is connected to an air source, the air passage sleeve 12 is made of a flexible material, and a certain gap is formed between the air passage sleeve 12 and the air supply socket 14. In the present embodiment, as shown in fig. 9, a gap E is provided between the inner wall of the air supply port 14 and the outer wall of the air passage sleeve 12.

The air passage sleeve 12 is made of flexible materials, and a deformation space is formed between the air passage sleeve 12 and the air supply jack 14, so that when the air supply connecting structure 22 is connected with the air passage sleeve 12, the air passage sleeve 12 can flexibly deform, and smooth plug-in connection of the air supply connecting structure 22 and the air passage sleeve 12 is ensured.

It should be noted that the air passage sleeve 12 is made of a silicone elastic material.

In the present embodiment, as shown in fig. 9 and 10, the front end of the air supply connection structure 22 has a tapered structure. Therefore, the air supply connection structure 22 is more convenient to insert into the air supply sleeve 12, and the air supply function is realized.

It should be noted that, referring to fig. 10, when a part machining error or an assembly error occurs and the air supply connection structure 22 is offset to a certain extent from an ideal position, the air supply sleeve 12 is properly deformed to compensate the error when the front end of the air supply connection structure 22 is inserted into the air supply sleeve 12.

As shown in fig. 3 and 4, the inner side of the connector holder 10 is provided with a guide pin 15, the outer wall of the connector 20 is provided with a guide groove 24, the grooving direction of the guide groove 24 is along the insertion and extraction direction of the connector 20, and the guide pin 15 is slidably matched with the guide groove 24.

By providing the guide pins 15 and the guide grooves 24, orientation is performed when the connector 20 is inserted into the connector holder 10, ensuring a one-to-one connection of the electrical contact pins 23 and the signal ports on the electrical contact holder 13.

In this embodiment, as shown in fig. 3, the front end slot of the guide slot 24 is provided with a chamfer structure, which is more convenient for the guide pin 15 to smoothly enter the guide slot 24.

As shown in fig. 3 and 4, the outer wall of the connector 20 is further provided with a flange structure 25, the flange structure 25 is disposed at the rear side of the guide groove 24, the connector seat 10 is provided with an abutment surface 16, and the flange structure 25 is correspondingly abutted with the abutment surface 16. The flange structure 25 and the abutment surface 16 are provided to locate the insertion position of the connector 20.

As shown in fig. 4, an elastic limiting structure 17 is further disposed on the inner side of the connector base 10, the elastic limiting structure 17 is disposed on the rear side of the abutment surface 16, and when the connector 20 is abutted (correspondingly plugged) with the connector base 10, the elastic limiting structure 17 is in limited abutment with the rear side of the flange structure 25. By arranging the elastic limiting structure 17, after the connector 20 is inserted into the connector base 10, the position of the connector 20 is fixed, and the stability of the connector 20 is ensured.

In the present embodiment, as shown in fig. 4, the elastic stopper 17 includes a plate spring 171 and a stopper ball 172, the stopper ball 172 being disposed close to the inside of the connector holder 10 with respect to the plate spring 171, the plate spring 171 being adapted to apply an elastic force in the radial direction of the connector holder 10 to the stopper ball 172. When the connector 20 is inserted into the connector holder 10, the flange structure 25 passes forward over the limit ball 172 and then contacts the contact surface 16, and the limit ball 172 is engaged with the rear side of the flange structure 25 by the spring force of the plate spring 171.

In this embodiment, as shown in fig. 3, the connector 20 further includes a connection ring 27, the connection ring 27 is sleeved on the outer periphery of the post 26, the guide groove 24 is formed on the connection ring 27, and the flange structure 25 is also disposed on the connection ring 27.

In this embodiment, the connection ring 27 is made of stainless steel.

As shown in fig. 1, the body 100 includes a light source unit 110 and a video processing unit 120, the connector holder 10 is disposed on the light source unit 110, and the light source unit 110 is electrically connected to the video processing unit 120.

As shown in fig. 2, the connector 20 is connected to the operation portion 40 through the universal cable 30, the operation portion 40 is connected to the insertion portion 50, and the insertion portion 50 is used for insertion into the body cavity.

When the connector 20 of the present embodiment is plugged into the connector holder 10, first, the guide pin 15 is made to correspond to the guide groove 24, the connector 20 is inserted into the connector holder 10 in a forward movement until the flange structure 25 is abutted against the abutment surface 16, and the stopper ball 172 is fixed in a position-limited manner on the rear side of the flange structure 25. At this time, the light guide connector 215 is inserted into the heat dissipation block 18 to realize transmission of illumination light; the air supply connecting structure 22 is inserted into the air passage sleeve 12 to realize the transmission of air; the electric contact pins 23 are correspondingly connected with the electric contact seats 13, so that transmission of images and control signals is realized.

According to the above description, the present patent application has the following advantages:

1. the light guide connection structure and the flexibility of the air passage sleeve are utilized to compensate the machining errors and the assembly errors of the parts, so that the precise butt joint of the light passage, the air passage and the circuit is ensured;

2. by arranging the guide pin and the guide groove, the connector is oriented when being inserted into the connector seat, so that the electric contact pins are ensured to be connected with the signal ports on the electric contact seat in a one-to-one correspondence manner;

3. the flange structure and the abutting surface are arranged to position the insertion position of the connector.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. An endoscope apparatus, comprising:

a body (100);

a connector holder (10) provided on the body (100), the connector holder (10) including a light guide sleeve (11) and an air path sleeve (12);

the connector (20) is matched and spliced with the connector seat (10), and the connector (20) comprises a light guide connecting structure (21) inserted into the light guide sleeve (11) and an air supply connecting structure (22) inserted into the air passage sleeve (12); wherein the light guide connection structure (21) and/or the gas path sleeve (12) are/is flexible structures.

2. An endoscope apparatus according to claim 1, wherein said connector (20) comprises a cylindrical body (26), said light guide connection structure (21) and said air supply connection structure (22) are each provided protruding from an end portion of said cylindrical body (26) in an axial direction of said cylindrical body (26), and said light guide connection structure (21) and said air supply sleeve (12) are each of a flexible structure.

3. An endoscopic device according to claim 2, further comprising an electrical contact socket (13) and a number of electrical contact pins (23), a number of said electrical contact pins (23) being arranged around said post (26), said electrical contact pins (23) interfacing with said electrical contact socket (13).

4. An endoscope apparatus according to any one of claims 1-3, characterized in that the light guide connection structure (21) comprises a first light guide body (211), a second light guide body (212) and an elastic member (213), the first light guide body (211) is sleeved outside the second light guide body (212) with a certain gap, the elastic member (213) is sleeved outside the first light guide body (211) with a certain gap, and two ends of the elastic member (213) are respectively connected with the first light guide body (211) and the second light guide body (212).

5. The endoscope apparatus according to claim 4, wherein the first light guide body (211) is provided with a limit pin (2111), the second light guide body (212) is provided with a limit hole (2121), and the limit pin (2111) is inserted into the limit hole (2121) and is arranged in a gap.

6. An endoscope apparatus according to claim 4, characterized in that the outer circumference of the elastic member (213) is provided with a protective sleeve (214), both ends of the protective sleeve (214) are respectively connected with the first light guide body (211) and the second light guide body (212), and the outer wall of the protective sleeve (214) is arranged with the inner wall of the light guide sleeve (11) in a gap.

7. The endoscopic device of claim 4, wherein the light guide connection structure (21) further comprises a light guide connector (215), the light guide connector (215) being encapsulated at a front end of the first light guide body (211).

8. An endoscope apparatus according to claim 7, characterized in that a heat sink (18) is provided in the connector holder (10), and the light guide connector (215) is inserted in the heat sink (18).

9. An endoscope apparatus according to any one of claims 1-3, wherein an air supply socket (14) is formed in said connector holder (10), said air supply socket (14) being inserted with said air supply socket (12), said air supply socket (12) being connected to an air source.

10. An endoscope apparatus according to any one of claims 1 to 3, wherein a front end of said air supply connection structure (22) is formed in a tapered shape.