CN220069656U - Head end structure, insert assembly and endoscope - Google Patents

Abstract

The utility model discloses a head end structure, an insertion assembly and an endoscope, wherein the head end structure comprises a main body and at least two electronic elements, wherein a mounting channel, an operation channel and a water passing channel are arranged on the front end surface of the main body at intervals, and extend backwards to penetrate through the main body; the electronic component is fixedly arranged at the front channel section of the mounting channel; the thickness of the side wall of the water passing channel formed by surrounding on the main body is reduced compared with the thickness of the side wall of the installation channel and the operation channel formed by surrounding. According to the utility model, the wall thickness of the side wall of the water channel formed by the enclosing of the main body is thinned, so that the blank space in the head end structure can be utilized as much as possible, the cross-sectional area of the water channel is increased, and the purpose of increasing the water flow of the water channel is finally realized; and the required interval wall thickness among the installation channel, the operation channel and the water passing channel is not influenced, thereby being beneficial to the quality reliability of the head end structure.

Description

Head end structure, insert assembly and endoscope

Technical Field

The utility model relates to the technical field of endoscopes, in particular to a head end structure, an insertion assembly and an endoscope.

Background

The endoscope is generally provided with a head end structure at the front end of the insertion section, the head end structure is not only integrated with electronic elements such as an illumination component, an imaging component and the like and reserved with an instrument channel for medical instruments to enter and exit, but also provided with a water inlet hole/water outlet hole at the front end, and the water inlet pipe/water outlet pipe is generally inserted into the head end structure and directly connected with the water inlet hole/water outlet hole.

Because the water inlet pipe/water outlet pipe is directly inserted into the water inlet hole/water outlet hole, the outer diameter of the head end structure is designed, and the wall thickness of the water inlet pipe/water outlet pipe also needs to be considered. However, in some clinical applications, such as the biliopancreatic duct surgery, the outer diameter of the endoscope needs to be slender to be inserted, which has a certain limitation on the size of the head end structure, so that the water inlet pipe/water outlet pipe can only be made very thin, and the water inlet amount/water outlet amount is reduced.

Disclosure of Invention

The utility model mainly aims to provide a head end structure, an insertion assembly and an endoscope, and aims to solve the problem that the water inflow/outflow space is small in the traditional head end structure, so that the water inflow/outflow is reduced.

In order to achieve the above object, the present utility model provides a headend structure, comprising:

the front end face of the main body is provided with a mounting channel, an operation channel and a water passing channel at intervals, and the mounting channel, the operation channel and the water passing channel extend backwards to penetrate through the main body; the method comprises the steps of,

at least two electronic components fixedly mounted at a front channel section of the mounting channel;

the thickness of the side wall of the water passing channel is formed by enclosing on the main body, and compared with the thickness of the side wall of the mounting channel and the operation channel by enclosing, the thickness of the side wall of the water passing channel is thinned.

Optionally, the body has a first direction and a second direction disposed in a cross-section thereof;

the installation channel comprises an installation front channel section and an installation rear channel section which are sequentially communicated from front to back, two water passing channels are arranged, and each water passing channel comprises a water passing front channel section and a water passing rear channel section which are sequentially communicated from front to back;

the installation front channel sections and the operation channels are arranged at intervals along the first direction, and the two water passing front channel sections are respectively arranged at two opposite sides of the operation channel in the second direction.

Optionally, the water passing rear channel section is gradually curved and extends towards the installation rear channel section from front to back.

Optionally, the cross-sectional area of the post-installation channel section is smaller than the cross-sectional area of the pre-installation channel section;

the cross-sectional area of the post-water passage section is larger than the cross-sectional area of the pre-water passage section.

Optionally, the body includes:

the base body is provided with the installation channel and the operation channel, and the side wall of the base body is provided with a through groove which is communicated in the front-back direction; the method comprises the steps of,

the cladding piece is cladding is in the lateral wall of pedestal, and at least the lid closes the notch setting of logical groove, in order to with logical groove encloses jointly and closes and define the water channel.

Optionally, the through grooves are respectively arranged on different side walls of the seat body;

the cladding piece cladding is in the whole week lateral wall of pedestal.

Optionally, the cladding is made of a heat shrink material; or,

the cladding is made of a thermal compression material; or,

the wrap is made of an elastic material.

Optionally, the head end structure further includes a mounting member, where the mounting member is provided with at least two mounting positions, and each mounting position is adapted for mounting each electronic component, so as to connect each electronic component into a whole;

the mounting member is mounted at a forward channel section of the mounting channel.

In addition, to achieve the above object, the present utility model also provides an insertion assembly including:

the head end structure comprises a main body and at least two electronic elements, wherein the front end surface of the main body is provided with a mounting channel, an operation channel and a water passing channel at intervals, and the mounting channel, the operation channel and the water passing channel extend backwards to penetrate through the main body; the electronic component is fixedly arranged at the front channel section of the mounting channel; the thickness of the side wall of the water passing channel formed by surrounding the main body is thinned compared with the thickness of the side wall of the mounting channel and the operation channel formed by surrounding the main body;

the pipe bodies are positioned at the rear of the head end structure and are respectively connected with the installation channel, the operation channel and the water passing channel;

at least one traction piece positioned beside a plurality of the pipe bodies; the method comprises the steps of,

the sleeve is at least sleeved on the peripheries of the plurality of pipe bodies and the traction piece.

In addition, to achieve the above object, the present utility model also provides an endoscope including an insertion assembly including:

the head end structure comprises a main body and at least two electronic elements, wherein the front end surface of the main body is provided with a mounting channel, an operation channel and a water passing channel at intervals, and the mounting channel, the operation channel and the water passing channel extend backwards to penetrate through the main body; the electronic component is fixedly arranged at the front channel section of the mounting channel; the thickness of the side wall of the water passing channel formed by surrounding the main body is thinned compared with the thickness of the side wall of the mounting channel and the operation channel formed by surrounding the main body;

the pipe bodies are positioned at the rear of the head end structure and are respectively connected with the installation channel, the operation channel and the water passing channel;

at least one traction piece positioned beside a plurality of the pipe bodies; the method comprises the steps of,

the sleeve is at least sleeved on the peripheries of the plurality of pipe bodies and the traction piece.

In the technical scheme provided by the utility model, the installation channel is used for installing and wiring the electronic element; the operation channel is used for the medical forceps, the snare and other medical instruments to pass through; the wall thickness of the side wall of the water channel formed by the encircling of the main body is thinned, so that the blank space in the head end structure can be utilized as much as possible, the cross section area of the water channel is increased, and the aim of increasing the water flow of the water channel is finally realized; and the required interval wall thickness among the installation channel, the operation channel and the water passing channel is not influenced, thereby being beneficial to the quality reliability of the head end structure.

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 required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of an insert assembly according to the present utility model;

FIG. 2 is an exploded view of the insert assembly of FIG. 1;

fig. 3 is a schematic perspective view of an embodiment of a headend structure according to the present utility model;

FIG. 4 is a schematic view of the structure of the base in FIG. 3 at a view angle;

FIG. 5 is a schematic view of the base in FIG. 3 from another perspective;

fig. 6 is a schematic view of the structure of the mounting member in fig. 3.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				1	Head end structure	120	Cladding piece
100	Main body	200	Mounting member
				110	Seat body	210	Mounting position
111	Mounting channel	3	Pipe body
				111a	Front-mounted channel section	31	Wiring tube
111b	Post-installation channel section	32	Operating tube
				112	Working channel	33	Water pipe
113	Water passage	4	Traction piece
				113a	Water passing front channel section	5	Casing pipe
113b	Post-water passage section	6	Connecting pipe
				114	Through groove

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 3 to 6, an embodiment of a headend structure 1 according to the present utility model is shown.

Referring to fig. 3 to 5, the head end structure 1 provided by the present utility model includes a main body 100 and at least two electronic components (not shown). Wherein, the front end surface of the main body 100 is provided with a mounting channel 111, an operation channel 112 and a water passing channel 113 at intervals, and the mounting channel 111, the operation channel 112 and the water passing channel 113 extend backwards to penetrate through the main body 100; each of the electronic components is fixedly mounted at a front channel section of the mounting channel 111; the thickness of the side wall of the water channel 113 is reduced compared with the thickness of the side wall of the mounting channel 111 and the operation channel 112.

In the technical scheme provided by the utility model, the mounting channel 111 is used for mounting and wiring electronic elements; the operation channel 112 is used for passing medical forceps, snares and other medical instruments; the wall thickness of the side wall of the water channel 113 formed by the body 100 is thinned, so that the blank space in the head end structure 1 can be utilized as much as possible, the cross section area of the water channel 113 is increased, and the aim of increasing the water flow of the water channel 113 is finally achieved; and does not affect the required wall thickness of the space between the mounting channel 111, the operating channel 112 and the water passage 113, contributing to the quality reliability of the head end structure 1.

The front-back direction refers to the length direction of the main body 100, and basically corresponds to the front end of the head end structure 1 facing the focal position and the rear end facing away from the focal position and near the hand-held position of the user when the head end structure is actually applied. Further, the main body 100 has a cross section, and the cross section refers to a section in the vertical direction at the time of application. For ease of understanding, in the following embodiments, two directions disposed across the cross section of the main body 100 are defined as a first direction and a second direction, which may be disposed substantially perpendicularly.

The specific form of the main body 100 is not limited, and may be set to a suitable shape, size and material according to actual needs. For example, in the present embodiment, the main body 100 has a substantially cylindrical shape, the front end surface and the rear end surface of which are substantially flat surfaces, and the side surfaces of which are curved surfaces.

The front end surface of the main body 100 extends rearward and is provided with a mounting passage 111, and the mounting passage 111 includes a mounting front passage section 111a and a mounting rear passage section 111b which are sequentially communicated from front to rear. The mounting front channel section 111a is used for mounting electronic components, and the shape of the mounting front channel section can be matched with the corresponding position of each electronic component; the post-installation channel section 111b may be routed through electrical connection structures for the electrical components, such as wires, terminals, and the like. The post-mounting channel section 111b directs the electrical connection structure of the electronic component back to be electrically connected to the control device or power supply device of the complete machine.

The front end surface of the main body 100 is also extended backwards and penetrated with an operation channel 112, and the operation channel 112 can be used for the medical instrument to movably pass through, thereby facilitating the medical instrument to extend out of the head end structure 1 from back to front and perform operation on the focus part. The medical instrument is, for example, a snare, a stone-taking basket, a medical clamp, etc. To facilitate smooth penetration of the medical device, the operation channel 112 may be generally disposed in an equal diameter from front to back and extend as linearly as possible.

The front end surface of the main body 100 is also extended rearward through a water passing channel 113, and the water passing channel 113 includes a water passing front channel section 113a and a water passing rear channel section 113b which are sequentially communicated from front to rear. The water channel 113 can provide water to flow through, and the water channel 113 can be a water inlet channel or a water outlet channel according to practical needs, wherein the difference between the water channel and the water outlet channel is that the water flows from front to back or from back to front.

In the present embodiment, the cylindrical body 100 is provided with a mounting passage 111, an operation passage 112, and a water passage 113 therethrough. The size of the cross-sectional area of the mounting passage 111 is related to the overall size of the mounted electronic component, and after the type of the mounted electronic component is determined, the cross-sectional area of the mounting passage 111 is a determined value and is only large or small. The cross-sectional area of the working channel 112 is related to the overall size of the medical instrument being threaded, and after the threaded medical instrument is determined, the cross-sectional area of the working channel 112 is likewise a determined value and is only large or small.

In view of the above, the water passing passage 113 needs to reasonably use the blank space of the main body 100 except the installation passage 111 and the operation passage 112. Regardless of the arrangement, the mounting passage 111, the operation passage 112, and the water passage 113 necessarily have one side passage wall near the middle of the main body 100 and one side passage wall near the edge of the main body 100, and the passage walls of the mounting passage 111 and the operation passage 112 need to be formed with a certain wall thickness so that the mounting passage 111 forms a sufficient mounting strength and the operation passage 112 forms a sufficient operation strength. Therefore, on the premise of not affecting the normal arrangement of the installation channel 111 and the operation channel 112, the utility model performs proper thinning treatment on the water channel 113 at the same time far away from the operation channel 112 and the side wall of the installation channel 111, namely the side wall of the water channel 113 surrounded on the main body 100, so that the removal amount of the material of the main body 100 is converted into the increase amount of the cross-sectional area of the water channel 113 in the thinning treatment, thereby increasing the cross-sectional area of the water channel 113 as much as possible, namely the water flow of the water channel 113 in the limited main body 100 structure without affecting the installation channel 111 and the operation channel 112.

In the present embodiment, the number of the water channels 113 is not limited, and may be one or more according to actual needs. As shown in fig. 3 to 5, for example, the water passage 113 is provided in two, and both the water passages 113 are provided as described above. The two water passing channels 113 can be set as one water inlet channel and the other water outlet channel according to actual needs; alternatively, both water channels 113 may serve as water inlet channels.

In view of the above, when the main body 100 has a first direction and a second direction disposed in a cross-section thereof; the mounting channel 111 includes a front mounting channel section 111a and a rear mounting channel section 111b that are sequentially communicated from front to back, the number of the water passing channels 113 is two, and when each water passing channel 113 includes a front water passing channel section 113a and a rear water passing channel section 113b that are sequentially communicated from front to back, each electronic component is mounted due to the front mounting channel section 111a, and the cross-sectional area is generally larger; the cross-sectional area of the working channel 112 also needs to meet the setting, but is generally no greater than the cross-sectional area of the channel section 111a prior to installation. The pre-installation channel section 111a and the operation channel 112 are thus arranged at intervals along the first direction in the present embodiment, so that the pre-installation channel section 111a and the operation channel 112 are spaced apart along the first direction and occupy a sufficient space as required.

The two water passing front passage sections 113a are provided separately on opposite sides of the operation passage 112 in the second direction. Specifically, when the cross-sectional area of the operation passage 112 is substantially the same as that of the pre-installation passage section 111a, the two water passing passages 113 may be separately provided at opposite sides of the operation passage 112 in the second direction, and near the middle of the pre-installation passage section 111a and the operation passage 112 in the first direction. When the cross-sectional area of the operation passage 112 is smaller than that of the pre-installation passage section 111a, the two water passing passages 113 may be separately provided at opposite sides of the operation passage 112 in the second direction and disposed closer to the operation passage 112 than the pre-installation passage section 111a to fully utilize the space at both sides of the operation passage 112.

Further, in an embodiment, the post-water passage section 113b is curved to extend gradually from front to back toward the post-installation passage section 111b. The cross-sectional areas of the front mounting passage section 111a and the rear mounting passage section 111b may be different, or when the rear end of the head structure 1 is provided with a plurality of pipe bodies 3 corresponding to the mounting passage 111, the operation passage 112 and the water passing passage 113, the arrangement manner of the rear mounting passage section 111b and the two water passing passage sections 113b may be changed in consideration of reasonable arrangement of the respective pipe bodies 3. Therefore, by bending and extending the post-water passage segment 113b, the relative orientation relationship between the two post-water passage segments 113b and the operation passage 112 and the post-installation passage segment 111b can be adjusted, which is more helpful to fully utilize the limited space of the main body 100 and increase the cross-sectional area of the post-water passage segment 113b as much as possible.

Specifically, since the pre-mounting channel section 111a is provided for mounting each electronic component, and the post-mounting channel section 111b is provided for electrical connection structure of each electronic component, particularly wire arrangement, which is relatively small in space, in the present embodiment, the cross-sectional area of the post-mounting channel section 111b is set smaller than that of the pre-mounting channel section 111a, so that the main body 100 reserves more space at least at the rear section thereof. In combination with the above-mentioned bending and extending of the water passing rear channel section 113b, the water passing channels 113 close to the opposite sides of the operation channel 112 section are bent and extended to the opposite sides of the installation rear channel section 111b, so that the larger reserved space on the two sides of the installation rear channel section 111b can be reasonably utilized, and the cross-sectional area of the water passing rear channel section 113b is larger than that of the water passing front channel section 113 a. I.e. the water flow through at least the rear channel section of the water channel 113. And when the operation head end structure 1 is connected with the pipe body 3 corresponding to the water passing channel 113, the space of the water passing rear channel section 113b is increased compared with the space of the water passing front channel section 113a, so that the wall thickness of the pipe body 3 connected with the water passing rear channel section can be occupied, the further occupation of the limited space in the water passing channel 113 by the wall thickness of the pipe body 3 can be counteracted, and the water passing channel 113 is ensured to have enough water flow.

Of course, in other embodiments, since the cross-sectional area of the post-installation channel section 111b is smaller than that of the pre-installation channel section 111a, the post-installation channel section 111b may also be bent and extended from front to back toward one side in the first direction or one side in the second direction, so as to achieve avoidance, thereby reserving a larger space for the post-installation channel section 113b.

Based on any of the above embodiments, the main body 100 may be in a single structure and independently define the water passing channel 113, or in an embodiment, the main body 100 includes a base 110 and a cover 120, wherein the base 110 is provided with the mounting channel 111 and the operating channel 112, and a side wall of the base 110 is provided with a through slot 114 penetrating in a front-rear direction; the covering member 120 is covered on the outer side wall of the base 110, and at least covers the notch of the through groove 114, so as to define the water channel 113 together with the through groove 114.

Through the through groove 114 formed on the side wall of the seat 110, that is, the wall thickness of the side wall surrounding the water channel 113 on the seat 110 is sufficiently reduced, so that the cross-sectional area of the water channel 113 is sufficiently enlarged. The cover 120 covers at least the notch of the through groove 114, and forms a wall of the water passage 113 near the edge of the main body 100. Based on this, the thickness of the covering member 120 can be adjusted to be smaller according to practical needs, so that the thickness of the sidewall surrounding the water channel 113 on the main body 100 is reduced as much as possible.

The coating member 120 may cover the entire peripheral outer side wall of the housing 110, or may cover only the through groove 114.

In an embodiment, when the number of the water channels 113 is small, for example, one, the covering member 120 may partially cover the outer sidewall of the seat 110, that is, only the through groove 114 is covered, and at this time, the covering member 120 may be connected to the outer sidewall of the seat 110 in a sheet or film shape.

In another embodiment, when the number of the water passing channels 113 is greater, for example, at least two through slots 114 are respectively formed on different sidewalls of the base 110, the covering member 120 may optionally cover the entire peripheral outer sidewall of the base 110. In this way, the mounting of each cladding member 120 is not required to be performed one by one at each through groove 114, and the slot covers at all through grooves 114 can be completed by only cladding the entire peripheral outer side wall of the seat body 110.

In view of the above, the specific form of the sheathing member 120 is not limited.

In one embodiment, the cladding 120 is made of a heat shrink material. The covering member 120 is, for example, a heat shrink film, partially covers the through groove 114, or entirely covers the outer peripheral sidewall of the seat 110. The wrapping member 120 may also be a heat shrinkage tube, where the tube diameter of the heat shrinkage tube is larger than the outer diameter of the main body 100 before heating, so that the heat shrinkage tube is conveniently sleeved on the outer side of the main body 100. By heating the cladding member 120, the cladding member 120 is contracted to be tightly attached to the outer side of the main body 100, so that the cladding strength between the cladding member 120 and the seat body 110 is increased, the covering effect of the cladding member 120 on the notch of the through groove 114 is better, and the notch of the through groove 114 is prevented from generating gaps, so that water leakage is caused.

Or in an embodiment, the overmold 120 is made of a thermally compressed material. Specifically, for example, the covering member 120 is a thermal pressing film, and can generate adhesion under the thermal pressing action, so as to be adhered to the outer side wall of the main body 100. Reference is made in particular to sealing films.

Or in an embodiment, the cover 120 is made of an elastic material. The cladding member 120 is specifically, for example, an elastic tube, where the tube diameter of the elastic tube is not greater than the outer diameter of the main body 100 in an unstressed state, and the elastic tube expands under the action of an external force, so that the elastic tube is conveniently sleeved on the outer wall of the main body 100; after the external force is removed, the elastic tube is reset, and is elastically pressed on the outer side wall of the main body 100, that is, tightly covered on the notch of the through groove 114. The elastic material is arranged, so that the cover member 120 and the main body 100 can be disassembled and replaced, the cross section area of the water passing channel 113 defined by the cover member 120 and the seat body 110 can be adjusted in a certain range, for example, when the water flow is large and the flow speed is rapid, the cover member 120 is stressed to deform outwards, and the cross section area of the water passing channel 113 is increased; conversely, when the water flow rate is smaller and the flow rate is slower, the packing member 120 is less stressed without deformation, and the cross-sectional area of the water passage 113 is maintained as it is.

Furthermore, the above-described electronic components are not limited in the specific form of the present design, but generally, at least two kinds of electronic components, such as an illumination component and an imaging component, are integrated at the head end structure 1 in order to facilitate the surgical operation. The illumination component is used for illuminating the focus part, and is represented by a lamp bead, a lamp strip, a lamp post and the like. The lighting means may be specifically provided as a light-emitting diode (LED). The imaging component is used for imaging the focus part, and can be a photographing device such as a camera or a video device such as a video camera. The imaging component may be embodied as a CMOS (Complementary Metal Oxide Semiconductor ).

The electronic components are mounted in the mounting channel 111 and are located in the pre-mounting channel section 111a. The working surface of the electronic component is exposed forward to facilitate action on the lesion site. The working surface of the electronic component is, for example, the light-emitting surface of the illumination member, the imaging surface of the imaging member, or the like.

Based on this, referring to fig. 6, in one embodiment, the head end structure 1 further includes a mounting member 200, where the mounting member 200 is provided with at least two mounting positions 210, and each of the mounting positions 210 is adapted for mounting each of the electronic components so as to connect each of the electronic components into a whole; the mount 200 is mounted at a forward channel section of the mounting channel 111.

After the electronic components are integrally connected by the mounting member 200, the electronic components form a universal module, and the universal module is suitable for the mounting channels 111 with different specifications. The mounting locations 210 for different electronic components may take on different configurations, such as being configured as any number or size of slots, cavities, support columns, etc. The mounting locations 210 may be separated by, for example, a spacer structure, so that the electronic components may be isolated from each other as necessary to avoid interference.

In addition, referring to fig. 1 to 2, the present utility model also provides an insertion assembly comprising a head end structure 1, a plurality of tubes 3, at least one traction member 4 and a sleeve 5 as described above. It should be noted that, the detailed structure of the head end structure 1 in the insert assembly may refer to the embodiment of the head end structure 1 described above, and will not be described herein again; because the above-mentioned head end structure 1 is used in the insertion assembly of the present utility model, the embodiments of the insertion assembly of the present utility model include all the technical solutions of all the embodiments of the above-mentioned head end structure 1, and the achieved technical effects are also identical, and are not described in detail herein.

Wherein, a plurality of the pipe bodies 3 are positioned at the rear of the head end structure 1 and are respectively connected with the installation channel 111, the operation channel 112 and the water passing channel 113. Specifically, the plurality of pipe bodies 3 may be provided as the wiring pipe 31, the operation pipe 32, and the water passing pipe 33, respectively. Wherein the wiring pipe 31 is connected with the post-installation channel section 111b for the layout of the point connection structure of each electronic component; the operating tube 32 is connected to the operating channel 112 to guide the medical instrument to extend forward into the operating channel 112; the water passing pipes 33 are connected to the water passing passages 113 in one-to-one correspondence.

The traction piece 4 is positioned beside the plurality of pipe bodies 3; the sleeve 5 is at least sleeved on the peripheries of the plurality of pipe bodies 3 and the traction pieces 4, and the traction pieces 4 are connected to the rear end of the head end structure 1 or the front end of the sleeve 5. When the traction elements 4 are provided in plurality, the traction elements 4 are distributed at intervals along the circumferential direction of the head end structure 1, so that when any traction element 4 is pulled backwards by external force, the sleeve 5 can bend towards the corresponding side, and the head end structure 1 is driven towards the corresponding side.

The insert assembly further comprises a connecting tube 6, which connecting tube 6 is connected between the rear section of the head end structure 1 and the sleeve 5, and is adapted to wrap around at least the periphery of each tube body 3. And the joint between the head end structure 1 and the sleeve 5 is protected.

Furthermore, the present utility model provides an endoscope comprising an insertion assembly as described above. It should be noted that, the detailed structure of the insertion assembly in the endoscope may refer to the embodiment of the insertion assembly described above, and will not be described herein again; because the above-mentioned insertion assembly is used in the endoscope of the present utility model, the embodiments of the endoscope of the present utility model include all the technical solutions of all the embodiments of the above-mentioned insertion assembly, and the achieved technical effects are also identical, and are not described in detail herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A headend structure comprising:

the front end face of the main body is provided with a mounting channel, an operation channel and a water passing channel at intervals, and the mounting channel, the operation channel and the water passing channel extend backwards to penetrate through the main body; the method comprises the steps of,

at least two electronic components fixedly mounted at a front channel section of the mounting channel;

the thickness of the side wall of the water passing channel is formed by enclosing on the main body, and compared with the thickness of the side wall of the mounting channel and the operation channel by enclosing, the thickness of the side wall of the water passing channel is thinned.

2. The headend structure of claim 1 wherein the body has first and second directions disposed in cross-section thereof;

the installation channel comprises an installation front channel section and an installation rear channel section which are sequentially communicated from front to back, two water passing channels are arranged, and each water passing channel comprises a water passing front channel section and a water passing rear channel section which are sequentially communicated from front to back;

the installation front channel sections and the operation channels are arranged at intervals along the first direction, and the two water passing front channel sections are respectively arranged at two opposite sides of the operation channel in the second direction.

3. The head end structure of claim 2 wherein the post-water passage section curves from front to back toward the post-installation passage section.

4. A headend structure according to claim 3 wherein the cross-sectional area of the post-installation channel section is less than the cross-sectional area of the pre-installation channel section;

the cross-sectional area of the post-water passage section is larger than the cross-sectional area of the pre-water passage section.

5. The headend structure of any of claims 1-4, wherein the body comprises:

the base body is provided with the installation channel and the operation channel, and the side wall of the base body is provided with a through groove which is communicated in the front-back direction; the method comprises the steps of,

the cladding piece is cladding is in the lateral wall of pedestal, and at least the lid closes the notch setting of logical groove, in order to with logical groove encloses jointly and closes and define the water channel.

6. The head end structure of claim 5, wherein the through slots are respectively provided with at least two through slots on different side walls of the seat body;

the cladding piece cladding is in the whole week lateral wall of pedestal.

7. The headend structure of claim 5, wherein the cladding is made of a heat shrink material; or,

the cladding is made of a thermal compression material; or,

the wrap is made of an elastic material.

8. The header structure of claim 1, further comprising a mounting member, the mounting member having at least two mounting locations, each of the mounting locations adapted for mounting of each of the electronic components to connect each of the electronic components together;

the mounting member is mounted at a forward channel section of the mounting channel.

9. An insert assembly, comprising:

the headend structure of any of claims 1-8;

the pipe bodies are positioned at the rear of the head end structure and are respectively connected with the installation channel, the operation channel and the water passing channel;

at least one traction piece positioned beside a plurality of the pipe bodies; the method comprises the steps of,

the sleeve is at least sleeved on the peripheries of the plurality of pipe bodies and the traction piece.

10. An endoscope comprising the insertion assembly of claim 9.