CN220256436U - Front end structure of endoscope and endoscope - Google Patents

Abstract

The utility model discloses a front end structure of an endoscope and the endoscope, wherein the front end structure of the endoscope comprises an inner tube, an outer tube and a head end piece, the inner tube is provided with a first channel, the front end of the first channel is provided with a first opening, the outer tube is sleeved outside the inner tube, a second channel is formed between the outer tube and the inner tube, the head end piece is sleeved at the front ends of the inner tube and the outer tube, the head end piece is used for accommodating electronic devices and is provided with a first installation cavity and a second installation cavity, the rear ends of the first installation cavity and the second installation cavity are respectively arranged in an open mode, the inner tube is inserted into the first installation cavity, and the outer tube is inserted into the second installation cavity. In the utility model, the outer tube is sleeved in the head end piece, so that the smoothness of the joint between the head end piece and the outer tube can be effectively controlled, a heat shrinkage film is not required, the production process is simple, and the working time is reduced.

Description

Front end structure of endoscope and endoscope

Technical Field

The utility model belongs to the technical field of medical equipment, and particularly relates to a front end structure of an endoscope and the endoscope.

Background

An endoscope generally includes a handpiece and a front end structure of an elongated endoscope. The front end structure of the endoscope comprises an inner tube, an outer tube and a head end piece, a first channel is formed in the inner tube, a second channel is formed between the outer tube and the inner tube, one of the first channel and the second channel forms a liquid inlet channel, and the other one forms a liquid outlet channel, so that the outer diameter of the front end structure of the whole endoscope is reduced. The head end piece is used to house electronics such as a camera module and an illumination module for ease of viewing. The prior endoscope is provided with an electronic device and an instrument hole in a head end piece, then an outer tube is sleeved on the periphery of the head end piece, and an inner tube is inserted on the inner periphery of the head end piece so as to connect and fix the head end piece, the inner tube and the outer tube.

However, the above-described connection structure has the following drawbacks: when the outer tube is sleeved on the periphery of the head end piece, if the fixing modes such as gluing or clamping are adopted, the gap size between the outer tube and the head end piece is difficult to control, and further the smoothness of the adjacent part of the outer tube and the head end piece is difficult to ensure, and if the fixing mode of sleeving the heat shrinkage film is adopted, on one hand, the thickness of the heat shrinkage film still can cause local unevenness of the periphery of the head end piece, and on the other hand, the procedures of prefabricating the heat shrinkage film and sleeving the heat shrinkage film are required to be increased, so that the procedures of producing an endoscope are more complex and the working time is increased.

Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

Accordingly, the present utility model is directed to a distal end structure of an endoscope and an endoscope which are simple in production process and easy to control in flatness of appearance.

In order to solve the above technical problems, the present utility model provides a front end structure of an endoscope, comprising:

an inner tube having a first channel, a front end of the inner tube forming a first opening communicating with the first channel;

the outer pipe is sleeved outside the inner pipe, and a second channel is formed between the outer pipe and the inner pipe; the method comprises the steps of,

the head end piece is sleeved at the front ends of the inner tube and the outer tube, the head end piece is used for accommodating electronic devices and is provided with a first installation cavity and a second installation cavity, the rear ends of the first installation cavity and the second installation cavity are respectively in an open arrangement, the inner tube is inserted in the first installation cavity, and the outer tube is inserted in the second installation cavity.

In an embodiment, the outer tube comprises an insertion section and a bending section which are sequentially arranged in the front-back direction, wherein the insertion section is arranged in a non-bendable mode and is inserted into the second mounting cavity, and the bending section is arranged in a bendable mode and extends backwards from the rear end of the head end piece.

In an embodiment, the bending section comprises a skeleton pipe and a protective layer sleeved on the periphery of the skeleton pipe, the outer diameter of the skeleton pipe is the same as the outer diameter of the inserting section, and the outer diameter of the protective layer is the same as the outer diameter of the head end piece.

In an embodiment, a third opening communicating with the second channel is formed in the peripheral side of the insertion section, a fourth opening communicating with the second mounting cavity is formed in the peripheral side of the head end piece, and the third opening and the fourth opening are at least partially overlapped.

In an embodiment, the rear side of the fourth opening is disposed open.

In one embodiment, an adhesive is arranged between the outer tube and the inner wall of the second mounting cavity; and/or the number of the groups of groups,

the outer tube is clamped in the second mounting cavity.

In an embodiment, the head-end piece is further formed with a third mounting cavity for housing the electronic device.

In one embodiment, a first mounting cavity extends through the head end piece in a front-to-back direction to form a second opening on a front side of the head end piece that interfaces with the first opening; and/or the number of the groups of groups,

the third mounting cavity penetrates through the head end piece in the front-rear direction so as to form a mounting hole on the front side of the head end piece.

In one embodiment, the first, second and third mounting cavities are disposed side-by-side within the head-end piece, or,

the head end piece is in a cylindrical shape with an open rear end, two first connecting walls are arranged in the head end piece in parallel, each first connecting wall extends along the front-rear direction, two side edges of each first connecting wall extending along the front-rear direction are respectively connected with the peripheral wall of the head end piece, and a second mounting cavity is formed between the side surface of each first connecting wall, which is far away from the other first connecting wall, and the peripheral wall;

the outer tube comprises an insertion section and a bending section which are sequentially arranged in the front-back direction, the insertion section comprises two insertion blocks which are oppositely arranged in the radial direction of the outer tube, and the two insertion blocks are inserted into the two second installation cavities in a one-to-one correspondence manner;

and a second connecting wall extends between the two first connecting walls, and the second connecting wall divides the space between the two first connecting walls into the first mounting cavity and the third mounting cavity.

In order to solve the technical problems, the utility model provides an endoscope, which comprises the front end structure of the endoscope.

The technical scheme provided by the utility model has the following advantages:

the utility model provides a front end structure of an endoscope, which comprises an inner tube, an outer tube and a head end piece, wherein the inner tube is provided with a first channel, the front end of the first channel forms a first opening, the outer tube is sleeved outside the inner tube, a second channel is formed between the outer tube and the inner tube, the head end piece is sleeved at the front ends of the inner tube and the outer tube, the head end piece is used for accommodating electronic devices and is provided with a first installation cavity and a second installation cavity, the rear ends of the first installation cavity and the second installation cavity are respectively arranged in an open mode, the inner tube is inserted into the first installation cavity, and the outer tube is inserted into the second installation cavity. In the embodiment provided by the utility model, the outer tube is sleeved in the head end piece, so that the smoothness of the joint between the head end piece and the outer tube can be effectively controlled by ensuring the smoothness of the outer tube of the head end piece, a heat shrinkage film is not required, the production process is simple, and the working time is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a front end structure of an endoscope according to an embodiment of the present utility model;

FIG. 2 is a partially exploded view of the front end structure of the endoscope of FIG. 1;

FIG. 3 is a perspective exploded view of the front end structure of the endoscope of FIG. 1;

FIG. 4 is an enlarged schematic view of FIG. 3 at A;

FIG. 5 is a schematic perspective view of the tip end piece of FIG. 2;

fig. 6 is a schematic perspective view of the head end member of fig. 5 from another perspective.

Reference numerals illustrate:

100-a front end structure of an endoscope; 10-an inner tube; 20-an outer tube; 30-a head end piece; 11-a first channel; 12-a first opening; 21-a second channel; 22-a third opening; 201-insert section; 2011-plug block; 202-bending the segment; 2021-skeleton tube; 2022-protective layer; 31-a first mounting cavity; 32-a second mounting cavity; 33-a third mounting cavity; 301-a second opening; 302-fourth openings; 303-mounting holes; 34-a first connecting wall; 35-a second connecting wall.

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. The utility model will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

Referring to fig. 1 to 3, the present utility model provides a front end structure 100 of an endoscope and an endoscope, the front end structure 100 of the endoscope including an inner tube 10, an outer tube 20, and a head end member 30.

Wherein, the inner tube 10 and the outer tube 20 are hollow pipelines, the radial dimension of the outer tube 20 is larger than that of the inner tube 10, and the outer tube 20 is sleeved outside the inner tube 10. The head end piece 30 is provided at the end of the outer tube 20. The head end piece 30 is located in front of the end of the outer tube 20 in the extending direction of the outer tube 20. The inner tube 10 is located substantially within the outer tube 20, and thus, in the front-rear direction, the head end piece 30 is also located in front of the inner tube 10. That is, the head end 30 is positioned at the head end 30 of the front end structure 100 of the endoscope, and during insertion, the head end 30 is first introduced into the body, followed by the outer tube 20 and the inner tube 10.

The term "forward" refers to a direction in which the distal end structure 100 of the endoscope is inserted, and the member inserted earlier is positioned in front of the member inserted later in the insertion direction.

Specifically, a first passage 11 is formed inside the inner tube 10, and the end of the first passage 11 has a first opening 12. A second channel 21 is also formed between the inner tube 10 and the outer tube 20. The second channel 21 may be defined by an outer surface of the inner tube 10 and an inner surface of the outer tube 20, the second channel 21 and the first channel 11 together being substantially equal to the tube diameter channel dimension of the outer tube 20. More specifically, the inner tube 10 is disposed against the inner side wall of the outer tube 20, and the second channel 21 has a substantially meniscus shape in cross section. The first channel 11 and the second channel 21 are respectively provided with an opening communicated with the outside, so that one of the first channel 11 and the second channel 21 forms a liquid inlet channel, and the other one forms a liquid outlet channel, thus the arrangement avoids that a pipeline is additionally arranged between the inner tube 10 and the outer tube 20 to realize liquid circulation, and further effectively increases the flow of the liquid circulation and improves the capacity of the liquid circulation under the condition that the outer diameter of the front end structure 100 of the endoscope is fixed. Or in case of a certain fluid circulation flow rate, the outer diameter of the front end structure 100 of the endoscope is reduced, so that the trial parts of the endoscope are more, and the damage to the human body is reduced.

The head end piece 30 is used to house electronics, which may include, for example, a camera module and an illumination module through which internal body tissue structures are viewed when the camera module and the illumination module are in operation. The camera module may include a CMOS image sensor (Complementary Metal-Oxide-Semiconductor), a CCD image sensor (Charge-Coupled Device), and the lighting module may include an LED (Light Emitting Diode ), an LD (Laser Diode), and the like, and the camera module and the lighting module may further include a light guide fiber bundle, or may be a combination of the light guide fiber bundle and the image sensor, respectively, for example, the camera module includes a CMOS image sensor, and the lighting module includes a light guide fiber bundle. It should be noted that, the electronic component is disposed in the head end part 30, and the electronic component is understood to be fixed to the head end part 30, which is not limited to the case where the electronic component partially protrudes from the head end part 30. The electronics may be connected with electrical lines, which may be provided through either the first channel 11 or the second channel 21 and connected with the power supply module and/or the signal processing module. In particular, an electrical line, which may include a power supply line and/or a signal line, is provided in the second channel 21 in an insulating and sealing manner. The electronic device may also be connected to an external device through a wireless communication manner, and the wireless communication manner includes, but is not limited to, WIFI communication, bluetooth communication, radio frequency communication, zigBee communication, and the like.

In this embodiment, as shown in fig. 2 to 4 and fig. 5, the head end member 30 is sleeved on the front ends of the inner tube 10 and the outer tube 20, the head end member 30 is used for accommodating electronic devices, and is formed with a first mounting cavity 31 and a second mounting cavity 32, the rear ends of the first mounting cavity 31 and the second mounting cavity 32 are respectively opened, and preferably extend along the front-back direction respectively, the inner tube 10 is inserted into the first mounting cavity 31, and the outer tube 20 is inserted into the second mounting cavity 32. It can be appreciated that, compared with the connection mode of sleeving the outer tube 20 on the outside of the head end piece 30 in the prior art, the scheme provided by the embodiment can ensure the smoothness of the outer periphery of the front end structure 100 of the endoscope without strictly controlling the gap between the outer tube 20 and the head end piece 30, and the seam between the outer tube 20 and the head end piece 30 is reduced, so that the connection process between the outer tube 20 and the head end piece 30 is simpler, the appearance of the front end structure 100 of the endoscope is smoother, and the damage to the human body caused by the uneven outer surface of the front end structure 100 of the endoscope is effectively reduced. And the heat shrinkage film does not need to be sleeved, so that the procedures of prefabricating the heat shrinkage film and sleeving the heat shrinkage film in the existing production process are reduced, the production procedures are simpler, and the working time is reduced.

It will be appreciated that for placement of the electronics, the header 30 is generally provided as a rigid structure that is inflexible, such as by injection molding of hard plastic. In the conventional connection method, in order to ensure the connection reliability of the outer tube 20 and the head end piece 30, the front end of the outer tube 20 is also generally provided with a rigid structure which cannot be bent, however, in a narrow or narrow lumen, if the inflexible portion is too long, the front end of the endoscope is difficult to bend, or the front end of the endoscope is easy to stab into the lumen tissue during bending, so that unnecessary damage and discomfort are caused to the human body.

Thus, in an embodiment of the present utility model, referring to fig. 2, the outer tube 20 includes an insertion section 201 and a bending section 202 sequentially disposed in the front-back direction, the insertion section 201 is non-flexibly disposed and inserted into the second mounting cavity 32, and the bending section 202 is flexibly disposed, and specifically, the bending section 202 may be made of stainless steel or nickel-titanium snake bone by laser engraving to achieve bending performance. The curved section 202 extends rearwardly from the rear end of the head end piece 30. In the present embodiment, the non-bendable portion of the outer tube 20, i.e., the insertion section 201, is inserted entirely within the head-end piece 30 to achieve connection with the head-end piece 30, while the portion of the outer tube 20 extending outside the head-end piece 30, i.e., the bending section 202, has a bendable structure. Due to the insertion structure, even if the outer tube 20 is provided in a non-bendable structure only in the length range of the head end piece 30, an effective connection with the head end piece 30 can be ensured. Therefore, compared with the prior art, the integral length of the non-bendable part of the front end structure 100 of the endoscope is relatively reduced, so that the applicable part of the endoscope is wider, and the endoscope is not easy to stab into the cavity tissue during use, thereby reducing the damage to human bodies.

With continued reference to fig. 3, the curved section 202 includes a skeleton tube 2021 and a protecting layer 2022 sleeved on the outer periphery of the skeleton tube 2021, where the outer diameter of the skeleton tube 2021 is the same as the outer diameter of the insertion section 201, and the outer diameter of the protecting layer 2022 is the same as the outer diameter of the head end 30. In the present embodiment, the protective layer 2022 serves to protect and/or seal the outer tube 20 on the one hand, and the outer surface of the protective layer 2022 has a low friction coefficient, so that it is easy to be inserted into a human body and is less harmful to the human body. In a specific implementation, the protective layer 2022 may be a polyurethane material. In this embodiment, the outer diameters of the skeleton tube 2021 and the insertion section 201 are the same, and the skeleton tube 2021 and the insertion section 201 may be integrally formed, so that the skeleton tube has a smooth appearance, a simple forming process, and good forming precision and easy control of precision, compared with a variable-diameter structure. After the tubular structure formed by the insertion section 201 and the skeleton tube 2021 is inserted into the second mounting cavity 32, a break difference is formed between the outer diameter of the skeleton tube 2021 and the outer diameter of the head end piece 30, so as to provide a setting space for the protective layer 2022. Specifically, after the protective layer 2022 is sleeved on the outer periphery of the skeleton tube 2021, the outer diameter of the protective layer is the same as the outer diameter of the head end piece 30, so that the joint between the outer tube 20 and the head end piece 30 has few dimensional changes, and the protective layer smoothly transits, so that the front end structure 100 of the endoscope has a smoother appearance, is suitable for being inserted into a human body, and avoids unnecessary injury to the human body. And the front end structure 100 of the endoscope has simple production process, does not need to be sleeved with a heat shrinkage film, and has consistent and beautiful appearance and color.

Further, referring to fig. 2 and 4 in combination, the peripheral side of the insertion section 201 is provided with the third opening 22 communicating with the second channel 21, the peripheral side of the head end 30 is provided with the fourth opening 302 communicating with the second mounting cavity 32, and the third opening 22 and the fourth opening 302 at least partially overlap. It will be appreciated that the overlapping portion of the third opening 22 and the fourth opening 302 constitutes a liquid inlet or a liquid outlet (liquid inlet when the second channel 21 is a liquid inlet channel and liquid outlet when the second channel 21 is a liquid outlet channel) communicating with the second channel 21. In this embodiment, the liquid inlet or outlet of the front end structure 100 of the endoscope is communicated with the second channel 21 through the installation cavity, so that the liquid circulation space therein does not occupy the extending part of the inner tube 10 and the arrangement part of the electronic device in the head-end piece 30, and adverse effects on the flow rate of the circulating liquid are avoided. Preferably, the third opening 22 is disposed immediately adjacent the curved section 202 such that the circulating fluid flow is not affected by the connection between the outer tube 20 and the head end member 30.

On the basis of the above embodiment, the rear side of the fourth opening 302 is provided in an open manner. This arrangement, on the one hand, allows the fourth opening 302 to be more easily formed in the head end piece 30 and, on the other hand, increases the tolerance of the head end piece 30, making it easier for the insert section 201 to be inserted into the second mounting cavity 32.

It will be appreciated that the outer tube 20 and the second mounting cavity 32 in the head end member 30 may be interference fit to achieve connection, and in other embodiments, in order to facilitate disassembly and assembly and ensure connection reliability of the outer tube 20 and the head end member 30, an adhesive is provided between the outer tube 20 and the inner wall of the second mounting cavity 32; and/or, the outer tube 20 is snapped into the second mounting cavity 32. In this embodiment, the outer tube 20 and the head end member 30 are further connected and fixed by means of adhesion and/or clamping, which is easy to install and operate, and has good connection reliability.

On the basis of the above embodiment, the head-end piece 30 is further formed with a third mounting cavity 33, the third mounting cavity 33 being used for housing the electronic device. In the present embodiment, a third mounting chamber 33 is formed in the head end member 30 in a spaced-apart arrangement between the first mounting chamber 31 and the second mounting chamber 32 for mounting electronic devices. In this way, the electronic device is convenient to fix, is not easy to bend and disturb by the inner tube 10 and the outer tube 20, and avoids influencing imaging or illumination effects of the electronic device.

Based on the above embodiment, referring to fig. 5, in the embodiment, a second opening 301 communicating with the first channel 11 on the head end member 30 and a mounting hole 303 having a light-transmitting effect are formed at the front end of the head end member 30. The mounting hole 303 may also be used to mount electronic devices, and it is understood that the second opening 301 and the mounting hole 303 are not limited to be formed at the front side of the head end member 30, but may be formed at the circumferential side of the front end of the head end member 30. Preferably, the first mounting cavity 31 penetrates the head-end piece 30 in the front-rear direction to form a second opening 301 at the front side of the head-end piece 30, which interfaces with the first opening 12; and/or the third mounting cavity 33 penetrates the head-end piece 30 in the front-rear direction to form a mounting hole 303 at the front side of the head-end piece 30. Thus, the second opening 301 and/or the mounting hole 303 are formed on the front side of the head end 30, so that the liquid circulation effect is good, and the imaging and illumination directions are more in accordance with the actual requirements. The rear end of the third mounting cavity 33 extends through the head-end piece 30 in communication with the second channel 21 so that the wire bundle can be disposed in extension within the second channel 21.

In order to minimize the size of the head end piece 30, in one embodiment, the first, second and third mounting cavities 31, 32, 33 are disposed side-by-side within the head end piece 30. In this way, the first, second and third installation cavities 31, 32 and 33 extend in the front-rear direction in the head end piece 30 respectively, and may be disposed adjacent to each other, so that the overall structure of the head end piece 30 is more compact, the internal space is fully utilized, and the size of the head end piece 30 is effectively reduced.

In a specific embodiment, referring to fig. 3 and 6, the head-end member 30 is configured in a cylindrical shape with an open rear end, two first connecting walls 34 are disposed in the head-end member 30, each first connecting wall 34 extends in the front-rear direction, two side edges of each first connecting wall 34 extending in the front-rear direction are respectively connected to the peripheral wall of the head-end member 30, and a second mounting cavity 32 is formed between the side surface of each first connecting wall 34 away from the other first connecting wall 34 and the peripheral wall. The outer tube 20 includes an insertion section 201 and a bending section 202 that are sequentially disposed in the front-rear direction, the insertion section 201 includes two insertion blocks 2011 that are disposed opposite to each other in the radial direction of the outer tube 20, and the two insertion blocks 2011 are inserted into the two second installation cavities 32 in a one-to-one correspondence manner. So set up for the position near the periphery in head-end piece 30 is connected fixedly with the grafting piece 2011 of outer tube 20 front end, on the one hand guaranteed the connection reliability, on the other hand outer tube 20 is not inserted head-end piece 30 in the whole circle, make there is more space to settle electronic components and insert interior pipe 10 in the head-end piece 30, this is because second passageway 21 need not extend all the way to the front end side of head-end piece 30, thereby the front side position of head-end piece 30 has reduced the space that second passageway 21 occupy, make head-end piece 30 inner structure compacter, the size can be set up littleer, thereby be suitable for more positions of the human body, and harm to the human body is littleer.

Further, a second connecting wall 35 is provided extending between the two first connecting walls 34, the second connecting wall 35 dividing the space between the two first connecting walls 34 into a first mounting cavity 31 and a third mounting cavity 33. In this way, the first, second and third mounting cavities 31, 32 and 33, respectively, are disposed immediately adjacent to each other, so that the inside structure of the head-end piece 30 is compact, while the first and second connection walls 34 and 35 also function as supports, ensuring the rigidity of the head-end piece 30, so that the peripheral wall thickness of the head-end piece 30 can be appropriately reduced, thereby further reducing the size of the head-end piece 30.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. Based on the embodiments of the present utility model, those skilled in the art may make other different changes or modifications without making any creative effort, which shall fall within the protection scope of the present utility model.

Claims (10)

1. A front end structure (100) of an endoscope, characterized in that the front end structure (100) of the endoscope comprises:

an inner tube (10) having a first passage (11), a front end of the inner tube (10) forming a first opening (12) communicating with the first passage (11);

the outer tube (20) is sleeved outside the inner tube (10), and a second channel (21) is formed between the outer tube (20) and the inner tube (10); the method comprises the steps of,

the head end piece (30) is sleeved at the front ends of the inner tube (10) and the outer tube (20), the head end piece (30) is used for accommodating electronic devices and is provided with a first installation cavity (31) and a second installation cavity (32), the rear ends of the first installation cavity (31) and the second installation cavity (32) are respectively in an open arrangement, the inner tube (10) is inserted in the first installation cavity (31), and the outer tube (20) is inserted in the second installation cavity (32).

2. The endoscope front end structure (100) according to claim 1, wherein the outer tube (20) includes an insertion section (201) and a bending section (202) which are disposed in order in the front-rear direction, the insertion section (201) being disposed in a non-bendable manner and inserted into the second mounting chamber (32), and the bending section (202) being disposed in a bendable manner and extending rearward from the rear end of the head end member (30).

3. The endoscope front end structure (100) according to claim 2, wherein the bending section (202) includes a skeleton tube (2021) and a protective layer (2022) fitted around an outer periphery of the skeleton tube (2021), an outer diameter of the skeleton tube (2021) is the same as an outer diameter of the insertion section (201), and an outer diameter of the protective layer (2022) is the same as an outer diameter of the head end member (30).

4. The endoscope front end structure (100) according to claim 2, characterized in that a third opening (22) communicating with the second channel (21) is provided on a peripheral side of the insertion section (201), a fourth opening (302) communicating with the second mounting cavity (32) is provided on a peripheral side of the head end member (30), and the third opening (22) and the fourth opening (302) are at least partially overlapped.

5. The endoscope front end structure (100) of claim 4 characterized in that the rear side of the fourth opening (302) is open.

6. The endoscope front end structure (100) of claim 1 characterized in that an adhesive is provided between the outer tube (20) and the inner wall of the second mounting cavity (32); and/or the number of the groups of groups,

the outer tube (20) is clamped in the second mounting cavity (32).

7. The front end structure (100) of an endoscope according to any of claims 1 to 6, characterized in that the head end member (30) is further formed with a third mounting cavity (33), the third mounting cavity (33) being for housing the electronics.

8. The front end structure (100) of an endoscope according to claim 7, characterized in that a first mounting cavity (31) penetrates the head end member (30) in a front-rear direction to form a second opening (301) abutting the first opening (12) at a front side of the head end member (30); and/or the number of the groups of groups,

the third mounting cavity (33) penetrates the head end piece (30) in the front-rear direction to form a mounting hole (303) on the front side of the head end piece (30).

9. The endoscope front end structure (100) of claim 8, characterized in that the first, second and third mounting cavities (31, 32, 33) are arranged side by side within the head end piece (30); or, the head end piece (30) is in a cylindrical shape with an open rear end, two first connecting walls (34) which are arranged side by side are arranged in the head end piece (30), each first connecting wall (34) extends along the front-rear direction, two side edges of each first connecting wall (34) extending along the front-rear direction are respectively connected with the peripheral wall of the head end piece (30), and a second mounting cavity (32) is formed between the side surface of each first connecting wall (34) away from the other first connecting wall (34) and the peripheral wall;

the outer tube (20) comprises an insertion section (201) and a bending section (202) which are sequentially arranged in the front-back direction, the insertion section (201) comprises two insertion blocks (2011) which are oppositely arranged in the radial direction of the outer tube (20), and the two insertion blocks (2011) are inserted into the two second installation cavities (32) in a one-to-one correspondence manner;

a second connecting wall (35) extends between the two first connecting walls (34), and the second connecting wall (35) divides the space between the two first connecting walls (34) into the first mounting cavity (31) and the third mounting cavity (33).

10. An endoscope, characterized by comprising the front end structure (100) of the endoscope of any one of claims 1-9.