CN220898655U - Channel sealing assembly, handle and endoscope - Google Patents

Abstract

The utility model discloses a channel sealing assembly, a handle and an endoscope, and relates to the field of medical instruments. This passageway seal assembly, the mount pad is provided with first passageway, elastic sealing spare installs in first passageway, elastic sealing spare is provided with the second passageway, the block includes first body and second body, the second body sets up in first body, the internal diameter of first body and the external diameter phase-match of mount pad, the external diameter of second body is less than the internal diameter of first passageway, the second body is provided with the third passageway, when the cap closes on the mount pad, gap has between the outer wall of second body and the inner wall of mount pad, the cap still sets up along mount pad axial direction is portable, and make elastic sealing spare have at least make the state that the second passageway was opened and make the state that the second passageway was closed. The channel sealing assembly can ensure that the periphery of the elastic sealing element, the mounting seat and the second channel have good sealing performance all the time by increasing the extrusion force of the second pipe body to the elastic sealing element.

Description

Channel sealing assembly, handle and endoscope

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a channel sealing assembly, a handle and an endoscope.

Background

Endoscopes are a commonly used medical instrument that can directly access the natural lumen of the human body for examination, providing the physician with adequate diagnostic information. Endoscopes generally include: an insertion part for being inserted into the human body, a handle for controlling the front end of the insertion part to be bent, and a display device for displaying the internal environment of the natural cavity of the human body; the endoscope can realize peeping and focus exploration and treatment of the interior of a human body through the matching of the three parts.

An instrument tube channel is arranged in the handle of the endoscope, the instrument tube channel extends into the insertion part along the handle, treatment instruments such as biopsy forceps and the like can extend into a lesion position of a human body through the instrument tube channel to operate, and treatment substances can be conveyed to the lesion position in the human body through the instrument tube channel. The proximal end of the instrument tube channel in the prior art is usually provided with a silica gel pad, the silica gel pad is provided with a cross-shaped opening, the treatment instrument or the therapeutic substance can be sent into the instrument tube channel through the cross-shaped opening, and when the treatment instrument or the therapeutic substance is not required to be conveyed, the opening is in a closed state, so that the sealing effect can be achieved to isolate the external substances from entering the instrument tube channel.

However, the inventors found that: because the silica gel pad is provided with the cross-shaped opening, after the treatment instrument is inserted and pulled for many times, the opening is enlarged, so that the sealing performance of the instrument tube channel is reduced. Accordingly, providing a channel seal assembly with good sealing performance has become a technical problem to be solved by those skilled in the art.

Disclosure of utility model

The utility model discloses a channel sealing assembly, a handle and an endoscope, which are used for solving the technical problem that the sealing performance of an instrument tube channel is reduced after the instrument tube channel is used for multiple times by sealing the proximal end part of the instrument tube channel through a silica gel pad with a cross-shaped opening in the related art.

In order to solve the problems, the utility model adopts the following technical scheme:

a first aspect of the utility model provides a channel seal assembly.

The channel sealing assembly comprises a mounting seat, an elastic sealing element and a cover cap, wherein the mounting seat is provided with a first channel penetrating along the axial direction of the mounting seat, the elastic sealing element is mounted in the first channel, the elastic sealing element is provided with a second channel penetrating along the axial direction of the mounting seat, the cover cap comprises a first pipe body and a second pipe body, the second pipe body is arranged in the first pipe body, the inner diameter of the first pipe body is matched with the outer diameter of the mounting seat, the outer diameter of the second pipe body is smaller than the inner diameter of the first channel, the second pipe body is provided with a third channel penetrating along the axial direction of the second pipe body, when the cover cap is covered on the mounting seat, a gap is reserved between the outer wall of the second pipe body and the inner wall of the mounting seat, and the cover cap is movably arranged along the axial direction of the mounting seat and at least has a first state of opening the second channel and a second state of closing the second channel.

Further, at the distal end of the second pipe body, the distal end face of the second pipe body is connected with the side face of the second pipe body through an arc surface structure.

Further, the first pipe body and the second pipe body are coaxially arranged, and when the elastic sealing element is in the first state, the first channel, the second channel and the third channel are coaxially arranged with the channel to be sealed.

Further, the first channel has a first tapered portion therein, the resilient seal is mounted at the first tapered portion, and the distal end of the resilient seal has a second tapered portion having a configuration that matches the configuration of the first tapered portion.

Further, the first tapered portion is located at a distal end or a middle portion of the first channel, and an inner diameter of the first tapered portion and an inner diameter of the second tapered portion are gradually reduced from the proximal end to the distal end.

Further, the length of the second tube body along the axial direction thereof is greater than the distance between the proximal end face of the elastic sealing member and the proximal end face of the mounting seat.

Further, the outer surface of the mounting seat is connected with the inner surface of the first pipe body through a thread structure.

Further, when the length of the first pipe body is greater than or equal to the length of the second pipe body, the length of the thread structure is greater than the distance between the proximal end surface of the elastic sealing element and the proximal end surface of the mounting seat; when the length of the first pipe body is smaller than that of the second pipe body, the length of the thread structure is smaller than, equal to or larger than the distance between the proximal end face of the elastic sealing element and the proximal end face of the mounting seat.

A second aspect of the utility model provides a handle.

The handle comprises an instrument tube channel and a handle shell, wherein an accommodating cavity is formed in the handle shell and is used for accommodating the instrument tube channel, the proximal end of the instrument tube channel is provided with the channel sealing assembly according to any one of the technical schemes, and the first channel of the channel sealing assembly is communicated with the instrument tube channel.

A third aspect of the utility model provides an endoscope.

The endoscope comprises a handle, an insertion part and display equipment, wherein the handle is the handle according to any one of the technical schemes, the handle is connected with the insertion part, and the handle is also connected with the display equipment.

The technical scheme adopted by the utility model at least can achieve the following beneficial effects:

Taking the channel sealing assembly for sealing the instrument tube channel of the endoscope as an example, the channel sealing assembly can drive the second tube body of the cap to move towards the elastic sealing element by moving the cap along the axial direction of the mounting seat, when the second tube body is in abutting joint with the elastic sealing element, the cap can be continuously moved, the second tube body can generate extrusion action on the elastic sealing element, the elastic sealing element is deformed by extrusion force, and thus the second channel on the elastic sealing element can be closed; when the cap moves reversely, the second pipe body is separated from the elastic sealing element, the extrusion force born by the elastic sealing element disappears, and the elastic sealing element recovers deformation, so that the second channel on the elastic sealing element can be opened. Specifically, when the elastic sealing element is in a state that the second channel is closed, the closed second channel can isolate the instrument tube channel from the outside, so that the elastic sealing element can play a role in sealing the instrument tube channel to isolate foreign matters from entering the instrument tube channel; when the resilient seal is in a state in which the second channel is open, the open second channel may place the third channel in communication with the instrument tube channel, so that a treatment instrument may be inserted into the instrument tube channel or a therapeutic substance may be delivered.

Further, because the outer diameter of the second pipe body on the cap is smaller than the inner diameter of the first channel, when the cap is closed on the mounting seat, a gap is formed between the outer wall of the second pipe body and the inner wall of the mounting seat, and due to the structure, when the second pipe body is abutted against the elastic sealing element, part of the end face of the elastic sealing element is subjected to extrusion force in the far-end direction, the part of the elastic sealing element, which is not subjected to extrusion force, moves in the far-end direction, and the part of the elastic sealing element, which is not subjected to extrusion force, still keeps being attached to the inner wall of the mounting seat (or the part of the elastic sealing element, which is not subjected to extrusion force, has a movement displacement smaller than that of the stressed part), the elastic sealing element forms a concave structure with low middle part and high periphery, and because the periphery of the elastic sealing element and the inner wall of the mounting seat have a larger attachment area, the periphery of the elastic sealing element and the mounting seat have good sealing performance; at the same time, when the part of the elastic sealing element, which is subjected to the extrusion force, moves distally, the elastic sealing element deforms and closes the second channel, so that the elastic sealing element can form a state of completely sealing the first channel.

Therefore, the channel sealing assembly can ensure that the periphery of the elastic sealing element, the mounting seat and the second channel have good sealing performance all the time by increasing the extrusion force of the second tube body to the elastic sealing element, and solves the technical problem that the sealing performance of the channel of the instrument tube is reduced after the channel of the instrument tube is used for multiple times by sealing the proximal end part of the channel of the instrument tube through the silica gel pad with the cross-shaped opening in the related technology.

Drawings

In order to more clearly illustrate the embodiments of the 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, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a preferred embodiment of an endoscope of the present application;

FIG. 2 is a schematic view of a preferred implementation of the interior of an endoscope handle of an embodiment of the present application;

FIG. 3 is a partial view of a preferred embodiment of an endoscope of the present application;

FIG. 4 is a first schematic illustration of a preferred embodiment of a channel seal assembly of the present application;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

FIG. 6 is an enlarged view of portion B of FIG. 5;

FIG. 7 is a schematic view of a preferred implementation of an example mount of the present application;

FIG. 8 is a C-C cross-sectional view of FIG. 7;

FIG. 9 is a schematic view of a preferred embodiment of an elastomeric seal of the present application;

FIG. 10 is a D-D sectional view of FIG. 9;

FIG. 11 is a cross-sectional view of a second channel of an elastomeric seal of an embodiment of the present application in a closed state;

fig. 12 is a schematic view of a preferred implementation of the example cap of the present application.

In the figure: 10. a channel seal assembly; 11. a mounting base; 111. a first channel; 1111. a first tapered portion; 112. a first thread; 12. an elastic seal; 121. a second channel; 122. a second taper; 123. a boss; 13. capping; 131. a first tube body; 1311. a second thread; 132. a second tube body; 1321. a third channel; 1322. a distal end face; 1323. a side surface; 1324. a cambered surface structure; 133. a gap; 20. a handle; 21. an instrument tube channel; 22. a handle housing; 221. a receiving chamber; 30. an insertion portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The application is characterized in that: the proximal end of the instrument tube channel 21 in the prior art is sealed by a silicone pad having a cross-shaped opening, which is enlarged after a plurality of insertions and insertions of the treatment instrument, resulting in a reduced sealing performance of the instrument tube channel 21. To this end, the present application seals the proximal end of the instrument tube channel 21 by a seal assembly having a state of communicating the instrument tube channel 21 with the outside and having a state of isolating the instrument tube channel 21 from the outside; and when the instrument tube channel 21 is isolated from the outside, good tightness is kept between the periphery of the sealing assembly and the mounting seat 11 and at the channel of the sealing assembly all the time, so that the sealing assembly has good sealing performance.

In various embodiments of the present application, "proximal" and "distal" refer to the location of the components relative to the user's far and near position in the environment of use, wherein the end closer to the user is designated as "proximal" and the end farther from the user is designated as "distal".

The channel sealing assembly, the handle and the endoscope provided by the embodiment of the application are described in detail below by referring to fig. 1 to 12, and specific embodiments and application scenes thereof.

The first aspect of the present embodiment provides a channel seal assembly.

The channel sealing assembly of the present embodiment will be described by taking as an example an instrument tube channel 21 for sealing an endoscope. It will be appreciated that the channel sealing assembly of the present embodiment is not limited to use in sealing the instrument tube channel 21, but may also be used to seal other channels to be sealed, such as a fluid injection channel or a suction channel on an endoscope, etc.

The channel sealing assembly of this embodiment includes a mounting seat 11, an elastic seal 12, and a cap 13, as shown in fig. 4 and 5. The mounting seat 11 is arranged at the proximal end of the instrument tube channel 21, the mounting seat 11 is provided with a first channel 111 penetrating along the axial direction of the mounting seat, the first channel 111 is communicated with the instrument tube channel 21, the elastic sealing element 12 is arranged in the first channel 111, the elastic sealing element 12 is provided with a second channel 121 penetrating along the axial direction of the mounting seat, the cover cap 13 comprises a first tube body 131 and a second tube body 132, the second tube body 132 is arranged in the first tube body 131, the inner diameter of the first tube body 131 is matched with the outer diameter of the mounting seat 11, the outer diameter of the second tube body 132 is smaller than the inner diameter of the first channel 111, the second tube body 132 is provided with a third channel 1321 penetrating along the axial direction of the second tube body 132, when the cover cap 13 is covered on the mounting seat 11, a gap 133 is reserved between the outer wall of the second tube body 132 and the inner wall of the mounting seat 11, and the cover cap 13 is movably arranged along the axial direction of the mounting seat 11, and the elastic sealing element 12 at least has a first state for opening the second channel 121 and a second state for closing the second channel 121, as shown in fig. 1-12. Fig. 5 and 6 show schematic views of the second tube 132 having a gap 133 between the outer wall and the inner wall of the mounting 11, and fig. 10 and 11 show schematic views of the elastic seal 12 in an open state and a closed state, respectively.

Preferably, the mounting seat 11 and the cover cap 13 can be made of hard materials such as plastics or metals; the elastic sealing member 12 may be made of a material which is easily deformed, such as silicone rubber or rubber.

In the channel sealing assembly of the embodiment, the second tube 132 of the cap 13 is driven to move towards the elastic sealing element 12 by the cap 13 moving along the axial direction of the mounting seat 11, when the second tube 132 abuts against the elastic sealing element 12, the cap 13 is continuously moved, so that the second tube 132 can squeeze the elastic sealing element 12, the elastic sealing element 12 is deformed by the squeezing force, and the second channel 121 on the elastic sealing element 12 can be closed; when the cap 13 moves reversely, the second tube 132 is separated from the elastic sealing member 12, the pressing force applied to the elastic sealing member 12 is removed, and the elastic sealing member 12 is restored to be deformed, so that the second passage 121 on the elastic sealing member 12 can be opened. Specifically, when the elastic sealing member 12 is in a state where the second passage 121 is closed, the closed second passage 121 can isolate the instrument tube passage 21 from the outside, so that it can function as a seal for the instrument tube passage 21 to isolate foreign substances from entering the instrument tube passage 21; when the elastic seal 12 is in a state in which the second passage 121 is opened, the opened second passage 121 may communicate the third passage 1321 with the instrument tube passage 21, so that a treatment instrument may be inserted into the instrument tube passage 21 or a therapeutic substance may be delivered.

Further, since the outer diameter of the second tube 132 on the cap 13 is smaller than the inner diameter of the first channel 111, when the cap 13 is covered on the mounting seat 11, a gap 133 is formed between the outer wall of the second tube 132 and the inner wall of the mounting seat 11, and the structure is such that when the second tube 132 abuts against the elastic sealing member 12, a part of the end surface of the elastic sealing member 12 is subjected to extrusion force in the distal direction, the part of the elastic sealing member 12 subjected to extrusion force moves in the distal direction, while the part of the elastic sealing member 12 not subjected to extrusion force does not move and still keeps being in contact with the inner wall of the mounting seat 11 (or the part of the elastic sealing member 12 not subjected to extrusion force has a movement displacement smaller than the force receiving part), so that the elastic sealing member 12 forms a concave structure with low middle and high periphery (fig. 6 and 11 show schematic diagrams of the concave structure with low middle and high periphery on the periphery of the elastic sealing member 12), and the periphery of the elastic sealing member 12 has a large contact area with the inner wall of the mounting seat 11, so that the elastic sealing member 12 has good sealing performance with the mounting seat 11; at the same time, when the portion of the elastic sealing member 12 subjected to the pressing force moves distally, the elastic sealing member 12 deforms and closes the second passage 121, so that the elastic sealing member 12 can be brought into a state of completely sealing the first passage 111.

It can be seen that, in the channel sealing assembly of the present embodiment, the extrusion force of the second tube 132 to the elastic sealing member 12 is increased to ensure that the periphery of the elastic sealing member 12, the mounting seat 11 and the second channel 121 always have good sealing performance, so that the technical problem that the sealing performance of the instrument tube channel 21 is reduced after multiple uses due to the sealing of the proximal end of the instrument tube channel 21 by the silica gel pad with the cross-shaped opening in the related art is solved.

According to a preferred embodiment, at the distal end of the second tube 132, the distal end face 1322 of the second tube 132 is connected to the side face 1323 of the second tube 132 by a cambered surface structure 1324, as shown in fig. 12. In the channel sealing assembly according to the preferred technical solution of the present embodiment, since the elastic sealing member 12 forms a concave structure with a low middle portion and a high periphery, when the second pipe body 132 abuts against the elastic sealing member 12 and applies a pressing force to a portion of the end surface of the elastic sealing member 12, the distal end surface 1322 of the second pipe body 132 is connected with the side surface 1323 of the second pipe body 132 through the cambered surface structure 1324, so that the cutting effect on the elastic sealing member 12 caused by the periphery of the distal end surface 1322 of the second pipe body 132 can be avoided, and the service life of the elastic sealing member 12 can be prolonged.

According to a preferred embodiment, the first tube 131 is arranged coaxially with the second tube 132 and the first channel 111, the second channel 121, the third channel 1321 are arranged coaxially with the instrument tube channel 21 when the elastic seal 12 is in the first state. In the channel sealing assembly according to the preferred embodiment, the first tube body 131 and the second tube body 132 are coaxially arranged, and the first channel 111, the second channel 121 and the third channel 1321 are coaxially arranged with the instrument tube channel 21, on one hand, when the second tube body 132 abuts against the elastic sealing member 12, the second tube body 132 applies a pressing force to the middle part of the end surface of the elastic sealing member 12, so that good sealing performance can be maintained between the periphery of the elastic sealing member 12 and the mounting seat 11; on the other hand, insertion of a treatment instrument into the instrument tube channel 21 or delivery of a therapeutic substance may also be facilitated.

According to a preferred embodiment, the first channel 111 has a first tapered portion 1111 therein, the elastic sealing member 12 is mounted at the first tapered portion 1111, and the distal end of the elastic sealing member 12 has a second tapered portion 122, and the structure of the second tapered portion 122 is matched with that of the first tapered portion 1111, as shown in fig. 5, 7 to 11. Preferably, the first tapered portion 1111 is located at the distal end or middle of the first channel 111, and the inner diameters of the first tapered portion 1111 and the second tapered portion 122 gradually decrease in a proximal-to-distal direction. Fig. 7 and 8 show schematic views of the first taper 1111 distal to the first channel 111. In the channel sealing assembly according to the preferred embodiment, the elastic sealing member 12 is mounted at the first taper portion 1111, and meanwhile, the distal end of the elastic sealing member 12 has the second taper portion 122, the extrusion force is applied to the end surface of the elastic sealing member 12 at the second pipe 132, and the elastic sealing member 12 moves toward the smaller end of the first taper portion 1111, so that the elastic sealing member 12 deforms by extrusion toward the second channel 121, and the closing effect of the second channel 121 is better.

According to a preferred embodiment, the length of the second tube 132 in its axial direction is greater than the distance between the proximal end face of the elastic seal 12 and the proximal end face of the mounting seat 11. Preferably, the distance refers to the distance between the proximal end surface of the elastic sealing member 12 and the proximal end surface of the mounting seat 11 when the second passage 121 is in the open state. In the channel sealing assembly according to the preferred embodiment, the length of the second tube 132 in the axial direction is greater than the distance between the proximal end face of the elastic sealing member 12 and the proximal end face of the mounting seat 11, that is, the second tube 132 has a longer length, so that the end face of the second tube 132 can contact with the end face of the elastic sealing member 12 and apply a pressing force to the elastic sealing member 12, so that the second channel 121 of the elastic sealing member 12 can be completely closed.

According to a preferred embodiment, the outer surface of the mounting seat 11 is connected with the inner surface of the first tube 131 by a screw structure. Specifically, the outer surface of the mounting seat 11 is provided with a first thread 112, the inner surface of the first pipe body 131 is provided with a second thread 1311, and threaded connection is realized between the mounting seat 11 and the first pipe body 131 through cooperation of the first thread 112 and the second thread 1311, as shown in fig. 3, 7 and 12. According to the channel sealing assembly of the preferred technical scheme of the embodiment, the outer surface of the mounting seat 11 and the inner surface of the first pipe body 131 are in a threaded structure, and the first pipe body 131 can be moved along the axial direction of the mounting seat 11 by rotating the first pipe body 131, so that the second pipe body 132 is driven to move along the axial direction of the mounting seat 11, and the end face of the second pipe body 132 can be in contact with the end face of the elastic sealing element 12 and apply extrusion force to the elastic sealing element 12; the two are connected through the threaded structure, so that the second pipe body 132 can be continuously adjusted, the position of the second pipe body 132 can be controlled more accurately, and the sealing performance of the elastic sealing element 12 can be controlled accurately. The connection between the mount 11 and the first tube 131 may be, but not limited to, other connection methods such as clamping and bonding.

According to a preferred embodiment, when the length of the first tube 131 is greater than or equal to the length of the second tube 132, the length of the threaded structure is greater than the distance between the proximal end face of the elastic sealing member 12 and the proximal end face of the mounting seat 11. In the channel sealing assembly according to the preferred embodiment, when the length of the first tube body 131 is greater than or equal to the length of the second tube body 132, the length of the threaded structure is greater than the distance between the proximal end face of the elastic sealing member 12 and the proximal end face of the mounting seat 11, so that when the end face of the second tube body 132 contacts with the end face of the elastic sealing member 12, the first tube body 131 can still drive the second tube body 132 to move towards the distal end of the mounting seat 11, so that the second tube body 132 can apply the extrusion force to the elastic sealing member 12, and the second channel 121 of the elastic sealing member 12 can be completely closed.

According to a preferred embodiment, when the length of the first tube 131 is smaller than the length of the second tube 132, the length of the thread structure is smaller, equal to or larger than the distance between the proximal end face of the elastic sealing member 12 and the proximal end face of the mounting seat 11. Fig. 5 and 12 show schematic views in which the length of the first tube body 131 is smaller than that of the second tube body 132. Preferably, when the length of the first tube body 131 is smaller than the length of the second tube body 132, the length of the threaded structure is smaller than, equal to or greater than the distance between the proximal end face of the elastic sealing member 12 and the proximal end face of the mounting seat 11, which is specifically determined according to the length of the second tube body 132, so that when the end face of the second tube body 132 contacts with the end face of the elastic sealing member 12, the first tube body 131 can still drive the second tube body 132 to move towards the distal end of the mounting seat 11, so that the second tube body 132 can apply the extrusion force to the elastic sealing member 12, and the second channel 121 of the elastic sealing member 12 can be completely closed.

The length of the first tube 131 according to the preferred embodiment of the present invention refers to the length of the first tube 131 along the axial direction thereof; similarly, the length of the second tube 132 refers to the length of the second tube 132 along the axial direction thereof; the length of the screw structure means the length of the screw structure in the axial direction of the mount 11 or the length of the screw structure in the axial direction of the first pipe 131.

A second aspect of the present embodiment provides a handle.

The handle of this embodiment includes an instrument tube channel 21 and a handle housing 22, the handle housing 22 having a receiving chamber 221 formed therein, the receiving chamber 221 being for receiving the instrument tube channel 21, the proximal end of the instrument tube channel 21 being provided with the channel seal assembly 10 of any of the aspects of this embodiment, and the first channel 111 of the channel seal assembly being in communication with the instrument tube channel 21, as shown in fig. 2 and 3. It can be seen that the accommodating chamber 221 is further provided with a hauling cable, a signal wire, a negative pressure suction device, and the like, as shown in fig. 2 and 3.

The handle of the present embodiment, since the proximal end of the instrument tube channel 21 is provided with the channel seal assembly 10 according to any one of the embodiments, can enhance the tightness of the instrument tube channel 21 by the channel seal assembly 10, and can provide the elastic seal 12 with good sealing performance all the time by increasing the pressing force of the second tube 132 of the channel seal assembly 10 to the elastic seal 12.

A third aspect of the present embodiments provides an endoscope.

The endoscope of the present embodiment includes a handle 20, an insertion portion 30, and a display device, where the handle 20 is a handle according to any one of the embodiments, the handle 20 is connected to the insertion portion 30, and the handle 20 is further connected to the display device, as shown in fig. 1. The insertion portion 30 and the display device may have the same structure as those in the related art, and will not be described again.

The endoscope of the present embodiment may be a bronchoscope, a nephroscope, a esophagoscope, a gastroscope, a enteroscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, or the like. The present embodiment does not particularly limit the kind of endoscope. The endoscope of the present embodiment may be a limited-reuse endoscope or an unlimited-reuse endoscope.

The endoscope of the embodiment has good sealing performance due to the handle of any one of the technical proposal of the embodiment.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model.

Claims (10)

1. A channel sealing assembly is characterized by comprising a mounting seat (11), an elastic sealing element (12) and a cap (13), wherein the mounting seat (11) is provided with a first channel (111) penetrating along the axial direction of the mounting seat, the elastic sealing element (12) is arranged in the first channel (111), the elastic sealing element (12) is provided with a second channel (121) penetrating along the axial direction of the elastic sealing element,

The cap (13) comprises a first pipe body (131) and a second pipe body (132), the second pipe body (132) is arranged in the first pipe body (131), the inner diameter of the first pipe body (131) is matched with the outer diameter of the mounting seat (11), the outer diameter of the second pipe body (132) is smaller than the inner diameter of the first channel (111), the second pipe body (132) is provided with a third channel (1321) penetrating along the axial direction of the second pipe body,

When the cap (13) is covered on the mounting seat (11), a gap (133) is formed between the outer wall of the second pipe body (132) and the inner wall of the mounting seat (11), the cap (13) is further movably arranged along the axial direction of the mounting seat (11), and the elastic sealing piece (12) is at least provided with a first state for opening the second channel (121) and a second state for closing the second channel (121).

2. The channel seal assembly of claim 1, wherein at the distal end of the second tube (132), a distal end face (1322) of the second tube (132) is connected to a side face (1323) of the second tube (132) by a cambered surface structure (1324).

3. The channel sealing assembly according to claim 1 or 2, wherein the first tube body (131) is arranged coaxially with the second tube body (132), and wherein the first channel (111), the second channel (121), the third channel (1321) are arranged coaxially with the channel to be sealed when the elastic seal (12) is in the first state.

4. The channel sealing assembly according to claim 1 or 2, characterized in that the first channel (111) has a first cone (1111) inside, the elastic seal (12) is mounted at the first cone (1111), and the distal end of the elastic seal (12) has a second cone (122), the structure of which second cone (122) matches the structure of the first cone (1111).

5. The channel sealing assembly according to claim 4, wherein the first taper (1111) is located at a distal end or a middle portion of the first channel (111), and an inner diameter of the first taper (1111) and the second taper (122) is gradually reduced from a proximal end to a distal end direction.

6. The channel seal assembly according to claim 1 or 2, characterized in that the length of the second tube body (132) in its axial direction is larger than the distance between the proximal end face of the elastic seal (12) and the proximal end face of the mounting seat (11).

7. The channel sealing assembly according to claim 1 or 2, wherein the outer surface of the mounting seat (11) is connected to the inner surface of the first tube body (131) by a screw structure.

8. The channel seal assembly of claim 7, wherein the length of the thread structure is greater than the distance between the proximal end face of the resilient seal (12) and the proximal end face of the mount (11) when the length of the first tube (131) is greater than or equal to the length of the second tube (132);

When the length of the first pipe body (131) is smaller than that of the second pipe body (132), the length of the thread structure is smaller than, equal to or larger than the distance between the proximal end face of the elastic sealing element (12) and the proximal end face of the mounting seat (11).

9. A handle comprising an instrument tube channel (21) and a handle housing (22), wherein a receiving chamber (221) is formed in the handle housing (22), the receiving chamber (221) is used for receiving the instrument tube channel (21), the proximal end of the instrument tube channel (21) is provided with the channel sealing assembly according to any one of claims 1 to 8, and the first channel (111) of the channel sealing assembly is in communication with the instrument tube channel (21).

10. An endoscope, characterized by comprising a handle (20), an insertion portion (30) and a display device, wherein the handle (20) is a handle according to claim 9, the handle (20) is connected to the insertion portion (30), and the handle (20) is further connected to the display device.