CN116898496B

CN116898496B - Sample collector and endoscope

Info

Publication number: CN116898496B
Application number: CN202311176846.6A
Authority: CN
Inventors: 周震华; 唐鹏; 莫文军
Original assignee: Hunan Vathin Medical Instrument Co Ltd
Current assignee: Hunan Vathin Medical Instrument Co Ltd
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2023-11-17
Anticipated expiration: 2043-09-13
Also published as: CN116898496A

Abstract

The invention provides a sample collector and an endoscope, relates to the technical field of endoscopes, and solves the problem that sample collection is inconvenient in the prior art. The sample collector is used for an endoscope, and a main channel and an installation through hole which are intersected are arranged in a matrix. The main channel allows the treatment instrument to penetrate and release the sample at the intersection of the main channel and the mounting through hole; the sample receiving container is detachably connected with the base body, and the container opening of the sample receiving container is in butt joint with the mounting through hole; the sealing piece seals the container mouth; the sample pushing piece is inserted into the mounting through hole, can move to the puncture position from the initial position relative to the mounting through hole, when the initial position is reached, the sample pushing piece extends into the side of the main channel, moves to the puncture position, and in the process of moving to the puncture position, the sample pushing piece passes through the main channel to approach the sample receiving container, and when the puncture position, the sample pushing piece pierces the sealing piece, so that the container mouth is communicated with the mounting through hole to receive a sample. The invention can lead the treatment instrument to return to the intersection of the main channel and the mounting through hole to release the sample without being pulled out of the endoscope, and the sample collection process is more convenient.

Description

Sample collector and endoscope

Technical Field

The invention relates to the technical field of endoscopes, in particular to a sample collector and an endoscope.

Background

The endoscope is used for directly entering the natural cavity of the human body for examination, providing sufficient diagnosis information for doctors, and if necessary, inserting treatment instruments to complete sampling or treatment of lesion sites. The treatment instrument is required to be inserted into a lesion in a human body through an instrument channel in an endoscope to sample or deliver a therapeutic substance.

In the sampling process by using the treatment instrument, the treatment instrument is required to be pulled out of the instrument channel to the external environment after the sampling is successful, the taken sample is released and placed in the instrument tray, then the sample is placed in the sample container by using a tool clamp such as forceps, and the sample collecting process is complicated.

Disclosure of Invention

The invention aims to design a sample collector and an endoscope, which are used for solving the problem of inconvenient collection of samples.

The invention is realized by the following technical scheme:

the invention provides a sample collector, which is used for an endoscope, wherein the endoscope comprises an instrument channel, and the sample collector comprises a base body, a sample collection container, a sample pushing piece and a sealing piece; an intersecting main channel and a mounting through hole are arranged in the matrix, an outlet of the main channel is used for abutting against an inlet of the instrument channel, the main channel is used for penetrating a treatment instrument, and the treatment instrument can release a sample at an intersection position of the main channel and the mounting through hole; the sample receiving container is detachably connected with the base body, and a container opening of the sample receiving container is in butt joint with the mounting through hole; the sealing element seals a container opening of the sample container; the sample pushing piece is inserted into the mounting through hole, and can move from an initial position to a puncture position relative to the mounting through hole under the action of external force; the sample pushing piece is located at the side of the main channel under the condition of the initial position, the sample pushing piece penetrates through the main channel to gradually approach the sample collecting container to push the sample left in the mounting through hole in the process of moving from the initial position to the puncture position, and the sample pushing piece pierces the sealing piece under the condition of the puncture position to enable a container opening of the sample collecting container to be communicated with the mounting through hole so as to receive the sample.

When the arrangement structure is adopted, the main channel arranged in the matrix of the sample collector can penetrate into the treatment instrument, the treatment instrument for obtaining samples can release the samples at the intersection of the main channel and the installation through hole, then the sample pushing piece can push the released samples to the sample collecting container at one end of the installation through hole, and the inner cavity of the sample collecting container is communicated with the installation through hole in a sealing piece penetrating manner, so that the released samples can enter into the inner cavity of the sample collecting container to be collected. Thus, in the process of collecting the sample, the sample does not need to be exposed to the indoor environment, so that the sample can be effectively prevented from being polluted, the sample can be prevented from polluting the indoor environment, and meanwhile, the sample does not need to be clamped and collected into the container by using tools such as forceps, so that the collection process does not involve switching among a treatment instrument, a clamping tool and an endoscope, and the process from taking the sample collection container to opening the sample collection container, and the process of collecting the sample is more convenient.

In addition, because the main channel is used for being in butt joint with the inlet of the instrument channel of the endoscope, the treatment instrument which can be guided to penetrate through the sampler can move towards the far-end outlet of the instrument channel of the endoscope, so that the treatment instrument can return to the main channel in one way after sampling is finished to release a sample, and complicated path guiding operation is not needed to be carried out on the treatment instrument, so that the sample collecting process is convenient.

In addition, the sealing piece seals the container mouth of the sample receiving container, so that the sample receiving container is sealed before collecting samples, and the medicine stored in the sample receiving container cannot leak into the main channel in the sampling process of the treatment instrument, so that the medicine enters the human body, and the safety of using the sample receiving container can be ensured.

Further, in order to better realize the invention, the following arrangement structure is adopted: the sample pushing piece comprises a push rod and a puncture piece; the push rod is inserted into the mounting through hole; during the process that the pushing sample piece moves from the initial position to the puncturing position, the pushing rod pushes the puncturing piece and the sample to gradually approach the sealing piece until the puncturing piece punctures the sealing piece.

Further, in order to better realize the invention, the following arrangement structure is adopted: the puncture member is arranged as a ring cutter extending along the circumference of the push rod in the circumferential direction, and the cutting edge of the puncture member extends continuously along the circumference of the push rod and faces the sample container.

When adopting above-mentioned setting structure, set up the piercing member into the cutting edge along pushing rod circumference continuous extension's cyclic cutting knife's condition, the piercing member will be can carry out the puncture of a greater scope to sealing member, forms great puncture region to promote the effect of receipts appearance container collection sample.

Further, in order to better realize the invention, the following arrangement structure is adopted: the piercing member includes a plurality of blade portions, the sub-cutting edges of the blade portions extending obliquely, all of the blade portions being arranged in sequence along the push rod Zhou Xiangyi to form annular cutting teeth directed toward the sealing member.

When the arrangement structure is adopted, in the annular cutting teeth, the cutting edge extending obliquely can cause the effect of circumferential cutting on the corresponding position of the sealing element, so that the puncture element can puncture the sealing element more easily.

Further, in order to better realize the invention, the following arrangement structure is adopted: the piercing member is provided with a notch that separates the leading and trailing portions of the cutting edge of the piercing member.

When adopting above-mentioned setting structure, under the condition that the puncture piece is the ring cutter, the breach that sets up makes the cutting edge have a disconnected position in circumference, and this position can not cut the sealing member, like this, the part that the sealing member was cut can not be followed the main part of sealing member and cut off, does not fall into the problem in the appearance container inner chamber of receiving, can not influence the contact of sample and medicament collected.

Further, in order to better realize the invention, the following arrangement structure is adopted: the puncture element and the push rod are integrated into a whole; the sample pushing piece can move between the initial position and the puncture position relative to the mounting through hole under the action of external force; in the process that the sample pushing piece returns to the initial position from the puncture position, the push rod drives the puncture piece to gradually keep away from the sample collection container until the puncture piece returns to the initial position.

By adopting the arrangement structure, the sample pushing piece can reciprocate between the initial position and the puncture position, has the capability of repeatedly pushing samples and puncturing, and can repeatedly receive samples by replacing the sample receiving container on the substrate.

In addition, after the sample pushing piece returns to the initial position, the main channel is still unblocked, so that the sample collecting device has the multiplexing capability of the sampling function of the treatment instrument, for example, the sample can be collected again after the sample collection is completed once, at the moment, a new sample collecting container can be installed on the substrate again for collecting the sample, or the new sample collecting container is not installed any more, and the treatment instrument after the sample collection is completely withdrawn from the main channel, and the sample is collected in the existing mode.

Further, in order to better realize the invention, the following arrangement structure is adopted: the sample collection container is connected with a container cover, and the container cover is matched with a container opening of the sample collection container and is used for being detachably and hermetically connected with the container opening.

When the structure is adopted, the container cover is connected to the sample receiving container and moves along with the sample receiving container, so that the container cover can be used for covering the container opening immediately after the sample receiving container is detached from the substrate, the situation of finding the cover everywhere to seal is avoided, and the collection process is more convenient.

Further, in order to better realize the invention, the following arrangement structure is adopted: the puncture piece and the push rod are separated; the pushing sample piece further comprises a plug body, one end of the plug body is detachably connected with the extending end of the push rod, and the other end of the plug body is connected with the puncture piece; the push rod can reciprocate relative to the mounting through hole under the action of external force so as to be close to or far away from the sample collection container, the plug body is detachably and hermetically connected with the container opening of the sample collection container under the condition of the puncture position of the sample pushing piece, and the plug body is left in the container opening of the sample collection container when the push rod is gradually far away from the sample collection container to the initial position; the plug body can be detached from the base body along with the sample receiving container.

By adopting the arrangement structure, the puncture of the sealing element and the sealing action of the container mouth of the sample receiving container are sequentially completed in the sample pushing process of the sample pushing element. The plug body is driven by the push rod to be installed in the container mouth of the sample receiving container so as to seal the container mouth of the sample receiving container, thus, after the sample receiving container is detached from the substrate, the plug or the cover is not required to be found for sealing, and the sample collecting process is quite convenient.

In addition, the push rod can return to the initial position, so that the main channel is smooth, the sample collector also has multiplexing capability for the sampling function of the treatment instrument, for example, sampling can be performed again after one sample collection is completed, and the treatment instrument after the sample collection can be completely pulled out of the main channel and then the sample is collected in the existing mode.

Further, in order to better realize the invention, the following arrangement structure is adopted: one end of the plug body is provided with a handle, and the handle is positioned outside the sample collection container under the condition that the plug body is in sealing connection with the container mouth of the sample collection container.

When the structure is adopted, the handle protruding to the outside of the container opening of the sample receiving container can provide a holding part for an operator, so that the container plug is conveniently pulled out of the sample receiving container, and the subsequent test on the sample stored in the sample receiving container is convenient.

Further, in order to better realize the invention, the following arrangement structure is adopted: the sample pushing piece further comprises a rod cap fixed at the extending end of the push rod, a first bulge is arranged on the inner wall of the rod cap, and a second bulge is arranged on the outer wall of the base body; in the process that the sample pushing piece moves from the initial position to the puncture position, the first bulge can be abutted against the second bulge from one end far away from the sample receiving container so as to prevent the sample pushing piece from moving to the puncture position; under the condition of the puncture position, the first protrusion can be abutted against the second protrusion from one end close to the sample collection container so as to prevent the push rod from being far away from the sample collection container.

By adopting the arrangement structure, the rod cap can be matched with the second bulge arranged on the outer wall of the matrix through the first bulge on the inner wall of the rod cap, so that the retaining effect is generated, and the sample pushing piece can be maintained at the puncture position.

Further, in order to better realize the invention, the following arrangement structure is adopted: the sealing element is fixedly connected to the sample receiving container.

When the setting structure is adopted, the sealing piece moves along with the sample receiving container, and the container opening of the sample receiving container is sealed, so that the sample receiving container can be pre-filled with required medicaments for storage, and temporary filling during sample receiving can be avoided, thereby saving time during operation. When the pushing member is returned to the initial position, the sample can be repeatedly collected by the sample collecting container by replacing the sample collecting container with a new one on the base.

Further, in order to better realize the invention, the following arrangement structure is adopted: the outer peripheral surface of the push rod is in dynamic sealing fit with the installation through hole, and can seal the installation through hole to be positioned on two opposite sides of the main channel.

By adopting the arrangement structure, under the condition that the outer peripheral surface of the push rod is in dynamic seal fit with the hole wall of the installation through hole, when the sample pushing piece moves to the puncture position, the intersection of the main channel and the installation through hole is plugged by the push rod, so that when the matrix is connected onto the instrument channel through the main channel, the main channel is isolated from the outside, and the endoscope can be subjected to negative pressure suction operation through the instrument channel. When the push rod returns to the initial position, the main channel can be reused for sampling operation.

The invention also provides an endoscope, which comprises a handle and the sample collector, wherein an outlet of a main channel arranged in a matrix of the sample collector is detachably connected with an instrument nozzle of the endoscope.

The invention has the following advantages and beneficial effects:

the main channel arranged in the matrix of the sample collector can penetrate into the treatment instrument, the treatment instrument for taking the sample can release the sample at the intersection of the main channel and the mounting through hole, then the sample pushing piece can push the released sample to the sample collecting container at one end of the mounting through hole, and the inner cavity of the sample collecting container is communicated with the mounting through hole in a mode of piercing the sealing piece, so that the released sample can enter into the inner cavity of the sample collecting container to be collected. Thus, in the process of collecting the sample, the sample does not need to be exposed to the indoor environment, so that the sample can be effectively prevented from being polluted, the sample can be prevented from polluting the indoor environment, and meanwhile, the sample does not need to be clamped and collected into the container by using tools such as forceps, so that the collection process does not involve switching among a treatment instrument, a clamping tool and an endoscope, and the process from taking the sample collection container to opening the sample collection container, and the process of collecting the sample is more convenient. In addition, because the main channel is used for being in butt joint with the inlet of the instrument channel of the endoscope, the treatment instrument which can be guided to penetrate through the sampler can move towards the far-end outlet of the instrument channel of the endoscope, so that the treatment instrument can return to the main channel in one way after sampling is finished to release a sample, and complicated path guiding operation is not needed to be carried out on the treatment instrument, so that the sample collecting process is convenient. In addition, the sealing piece seals the container mouth of the sample receiving container, so that the sample receiving container is sealed before collecting samples, and in the sampling process of the treatment instrument, the medicine stored in the sample receiving container cannot leak into the main channel, and then enter the human body, so that the safety of using the sample receiving container can be ensured

Drawings

In order to more clearly illustrate the embodiments of the invention 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 invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 illustrates the exterior configuration of a sample collector in some embodiments with a pushing member in an initial position;

FIG. 2 is a schematic view of the external appearance structure of the base body;

FIG. 3 is a schematic view of the internal structure of the base;

FIG. 4 illustrates the appearance of a pushing sample in some embodiments;

FIG. 5 illustrates the structure of a piercing member in some embodiments;

FIG. 6 shows the internal structure of the cartridge with the integrated lancing member and plunger in the initial position;

FIG. 7 shows the internal structure of the cartridge with the lancing member and the pusher member separated in the initial position;

FIG. 8 illustrates the appearance of the cartridge in some embodiments when the pushing member is just in contact with the seal;

FIG. 9 is a schematic view of the internal structure of FIG. 8;

FIG. 10 illustrates the exterior configuration of the cartridge in some embodiments with the pushing member in the piercing position;

FIG. 11 shows the appearance of a sample container with a container lid sealing the container mouth;

FIG. 12 is a schematic view of the internal structure of FIG. 10;

FIG. 13 illustrates the internal structure of the cartridge in some embodiments when the cap is in abutment with the base when the pusher has not been moved to the lancing position;

FIG. 14 shows the appearance of the cartridge in other embodiments with the pushing member in the piercing position;

FIG. 15 shows the appearance of a sample container using a stopper to seal the mouth of the container;

FIG. 16 is an exploded view of FIG. 15 (dashed lines indicate correspondence between two sides of a notch and a seal);

fig. 17 is a schematic view of the structure of the endoscope of the present application.

Marked in the figure as:

10. a sample collector; 11. a base; 111. a main channel; 112. mounting through holes; 113. a second protrusion; 12. a sample collection container; 13. a container cover; 14. pushing the sample piece; 141. a push rod; 1411. an avoidance groove; 142. a plug body; 1421. a handle; 1422. a boss portion; 1423. a groove; 143. a piercing member; 1431. a blade section; 1432. a notch; 144. a pole cap; 1441. a first protrusion; 15. a seal;

20. A handle.

Detailed Description

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

In the description of the present invention, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application can be understood as appropriate by those of ordinary skill in the art.

In various embodiments of the present application, "proximal" and "distal" refer to the fact that the end of the endoscope that is closer to the user is designated as "proximal" and the end that is farther from the user is designated as "distal" in the environment of use, wherein "distal" and "proximal" also correspond to the context of use, respectively.

In one aspect, the present application provides a sample collector 10, particularly configured as follows:

as can be seen in fig. 17, the cartridge 10 is for use with an endoscope that includes an instrument channel. The function of the cartridge 10 is to interface with the inlet of the instrument channel of the endoscope to provide a penetration channel for the treatment instrument, while the channel provided by the cartridge 10 supports the proximal end of the treatment instrument and guides the treatment instrument into the instrument channel for sampling operations. The treatment instrument may reciprocate along the instrument path and path provided by the cartridge 10 to effect insertion, sampling, lofting, and extraction.

As shown in fig. 1 and 6, the cartridge 10 includes a base 11, a cartridge 12, a pusher 14, and a seal 15.

The base body 11 provides a mounting base for the sample receiving container 12, the sample pushing member 14 and the sealing member 15, the sample pushing member 14 can move relative to the base body 11, the sample remained in the base body 11 is pushed to the sample receiving container 12 by penetrating the sealing member 15, the sample receiving container 12 can be detached from the base body 11, and the collected sample is taken away for inspection. The manner in which the sample inside the base 11 is pushed into the sample collection container 12 by movement of the pushing member 14 will allow the sample to be collected without exposure to an external environment, such as an operating room environment.

Specifically, as shown in fig. 3, the base 11 is provided therein with intersecting main passages 111 and mounting through holes 112. Preferably, the main channel 111 and the mounting through hole 112 are orthogonal, and a middle section of the mounting through hole 112 intersects with a middle section of the main channel 111 to form an intersection. Generally, as shown in fig. 2, the appearance of the base 11 is designed to be a four-way structure in cooperation with the orthogonal main channel 111 and the mounting through hole 112.

As shown in fig. 3, the main channel 111 has an inlet and an outlet in the base 11, and the inlet is on the right and the outlet is on the left in fig. 3. The main channel 111 is used for communication with the instrument channel of the endoscope and for penetration of a treatment instrument, which can be passed into the main channel 111 from an inlet of the main channel 111 and out from an outlet of the main channel 111. The outlet of the main channel 111 is adapted to interface with the inlet of the instrument channel, allowing the treatment instrument to be advanced into the instrument channel through the outlet of the main channel 111 and finally sampled through the distal outlet of the instrument channel to the target site.

The space at the intersection of the main channel 111 and the mounting through hole 112 is large enough so that the sampling portion of the treatment instrument can be spread out when retreating to the intersection, releasing the acquired sample. Generally, as shown in fig. 3, the aperture of the mounting through hole 112 is larger than the aperture of the main channel 111, providing sufficient upper and lower space for deployment of the treatment instrument, and also providing mounting space for mounting the pushing member 14 and the sample container 12.

As shown in fig. 3 and 17, the outlet of the main channel 111 is provided as a snap-fit interface which is adapted to the instrument mouth on the handle 20 of the endoscope, so that the cartridge 10 can be detachably snapped onto the instrument mouth formed on the handle 20 through the outlet of the main channel 111 of the base 11. Wherein the instrument mouth serves as an entry site for the instrument channel.

The sample collector 10 can be separated from the handle 20 of the endoscope before use, can be stored separately, and can be detached from the instrument mouth on the handle 20 after use, so that the sample collector 10 has the advantages that the existing endoscope structure can be not needed to be modified, and the existing instrument mouth on the handle 20 of the endoscope can be used for attaching one sample collector 10 to achieve the purpose of conveniently collecting samples, thereby being more beneficial to popularization.

As shown in fig. 6, 11 and 15, the sample receiving container 12 has an inner cavity for collecting a sample and a container opening exposing the inner cavity. The sample container 12 shown in fig. 6, 11 and 15 is a bottle having a large axial dimension and a small radial dimension, but the sample container 12 may be a basin-shaped container or a container having another shape.

As shown in fig. 1 and 6, the sample container 12 is detachably connected to the base 11. Generally, the sample container 12 is disposed coaxially with the mounting through-hole 112 such that the container mouth of the sample container 12 faces upward to be abutted with the bottom end of the mounting through-hole 112. Generally, the bottom end of the mounting through hole 112 forms a clamping interface, the container mouth of the sample container 12 forms a clamping joint, and the container mouth of the sample container 12 is inserted into the clamping interface at the bottom end of the mounting through hole 112 for mutual insertion, and is clamped and fixed together. The sample receiving container 12 may receive the sample released into the intersection of the main channel 111 and the mounting through hole 112 below the main channel 111. The sample container 12 may store, but is not limited to, a liquid medicament for better holding the sample. The sample container 12 may be used to store a chemical solution for sample pretreatment, so that the sample can be pretreated in time, which is beneficial to shortening the sample inspection time and improving the sample inspection efficiency.

The seal 15 is a relatively thin solid body that can be pierced, and may be a plastic film, paper, thin plastic sheet, or other material that can be used to seal the mouth of the sample container 12 and is easily pierced. As shown in fig. 6 and 7, the sealing member 15 is provided in the mounting through hole 112 between the main channel 111 and the sample container 12, and seals the mouth of the sample container 12 from the upper space.

As shown in fig. 1 and 6, the pushing member 14 is inserted into the mounting through hole 112 from the top end opening of the mounting through hole 112 from above the base body 11 to be assembled, and the pushing member 14 is movable relative to the mounting through hole 112 in the axial direction of the mounting through hole 112 to move from the initial position to the puncture position. The portion of the sample pushing member 14 located outside the base 11 is an extension end, and the portion inserted into the mounting through hole 112 is an extension end. The projecting end of the plunger 14 can be moved from the initial position to the puncture position when an external force is applied to the cartridge 12 in the axial direction of the mounting through hole 112. In general, there is a necessary contact point between the outer peripheral surface of the pushing member 14 and the wall of the mounting through hole 112, so that the pushing member 14 can move relatively smoothly in the mounting through hole 112.

In the case of the pushing member 14 in the initial position, as shown in fig. 6, the projecting end of the pushing member 14 is located at the upper side of the main passage 111, leaving the main passage 111 so that the treatment instrument penetrating into the main passage 111 does not interfere with the pushing member 14.

In the process of moving the pushing member 14 from the initial position to the puncturing position, referring to fig. 6 and 12, the projecting end of the pushing member 14 passes through the main passage 111 from the position shown in fig. 6 and gradually approaches the sample receiving container 12, and during this time, the projecting end of the pushing member 14 pushes the sample left in the mounting through hole 112 toward the sample receiving container 12.

The plunger 14 moves to the position shown in fig. 8 before reaching the puncture site, at which point the plunger 14 just contacts the seal 15.

In the case of the sample pushing member 14 in the puncturing position, as shown in fig. 12, a portion of the sample pushing member 14 passes through the sealing member 15, and the sealing member 15 is punctured so that the container mouth of the sample receiving container 12 and the mounting through hole 112 are communicated with each other through the puncturing position on the sealing member 15, and thus, the sample can enter the cavity of the sample receiving container 12 through the puncturing position of the sealing member 15 and be collected.

In this embodiment, the main channel 111 provided in the base 11 of the sample collector 10 can penetrate into the treatment device and can enable the treatment device for taking the sample to release the sample at the intersection of the main channel 111 and the mounting through hole 112, and then the sample pushing member 14 can push the released sample to the sample collector 12 at one end of the mounting through hole 112, and the cavity of the sample collector 12 is communicated with the mounting through hole 112 by penetrating the sealing member 15, so that the released sample can enter into the cavity of the sample collector 12 to be collected. Thus, in the process of collecting the sample, the sample does not need to be exposed to the indoor environment, so that the sample can be effectively prevented from being polluted, the sample can be prevented from polluting the indoor environment, and meanwhile, the sample does not need to be clamped and collected into the container by using tools such as forceps, so that the collection process does not involve switching among a treatment instrument, a clamping tool and an endoscope, and the process from taking the sample collection container to opening the sample collection container, and the process of collecting the sample is more convenient.

In addition, since the main channel 111 is used to interface with the inlet of the instrument channel of the endoscope, the sample collector 10 can guide the treatment instrument penetrating into the main channel to move towards the distal outlet of the instrument channel of the endoscope, so that the treatment instrument can return to the main channel 111 in one way after sampling is completed to release the sample, and complicated path guiding operation on the treatment instrument is not needed, so that the sample collecting process is convenient.

In addition, the sealing member 15 seals the mouth of the sample receiving container 12, so that the sample receiving container 12 is sealed before collecting the sample, and the medicine stored in the sample receiving container 12 will not leak into the main channel 111 during the sampling process of the treatment apparatus, and further enter the human body, so that the safety of using the sample receiving container 10 can be ensured.

According to some alternative embodiments, as shown in fig. 4 and 6, the pushing member 14 includes a plunger 141 and a piercing member 143. The push rod 141 is a straight rod member coaxially arranged with the mounting through hole 112, and the bottom end of the push rod 141 is inserted into the mounting through hole 112 and movably guided and matched with the wall of the mounting through hole 112 through the peripheral surface. The penetration piece 143 is located in the mounting through hole 112. Typically, the bottom end of the piercing member 143 is configured to pierce the sealing member 15, such as by providing a pointed tip, which may be a tapered piercing needle extending axially downward, but may also be provided as a flat head, to which sufficient axial force is applied by contact with the sealing member 15 to break the sealing member 15.

In the process of moving the plunger 14 from the initial position to the puncturing position, the plunger 141 moves from the initial position to the final position, pushing the puncturing element 143 and the sample gradually closer to the sealing element 15, and to the final position where the puncturing element 143 punctures the sealing element 15. The initial position refers to an initial position of each component in the pushing member 14 when the pushing member 14 is in the initial position when the pushing member 14 is used for the first time, and the final position refers to a final position of each component in the pushing member 14 when the pushing member 14 is in the piercing position. It should be noted that, in some embodiments, descriptions related to the start position will also appear, and only the start position will be explained once, which will not be described in detail later.

According to alternative embodiments, as shown in fig. 2 and 5, the piercing member 143 is provided as a ring cutter, the piercing member 143 extends circumferentially along the circumference of the plunger 141 to form a ring shape, and the cutting edge of the piercing member 143 extends continuously circumferentially along the plunger 141. As shown in fig. 6, the cutting edge of the puncture element 143 is disposed to face the sample container 12. In the case where the piercing member 143 is provided as a circular cutter with a cutting edge extending continuously in the circumferential direction of the plunger 141, the piercing member 143 can pierce the sealing member 15 in a wider range to form a larger piercing area, so as to enhance the effect of collecting the sample in the sample container 12.

In general, the cutting edge of the piercing member 143 may be a complete annular cutting edge or an incomplete annular cutting edge.

Preferably, as shown in fig. 5, the cutting edge of the piercing member 143 is in the form of an annular tooth. Specifically, the bottom of the piercing member 143 has a plurality of blade portions 1431, and all the blade portions 1431 are arranged in order along the push rod 141 Zhou Xiangyi. The cutting edges of the piercing elements 143 are distributed over all blade portions 1431 in the form of sub-cutting edges which, in addition to extending circumferentially, extend obliquely in the axial direction, so that all blade portions 1431 combine to form an annular cutting tooth directed towards the sealing element 15. The annular cutting teeth may each have a circumferentially cutting effect on the corresponding location of the seal 15 by the obliquely extending cutting edges during penetration of the seal 15, which may allow the penetration member 143 to penetrate the seal 15 more easily.

Preferably, the piercing member 143 is provided with a notch 1432, for example, in the preferred embodiment in which the cutting edge of the piercing member 143 is in the form of an annular tooth, as shown in fig. 5, the notch 1432 is formed between two adjacent blade portions 1431 of the piercing member 143, and separates the leading portion and the trailing portion of the cutting edge of the piercing member 143 so that the cutting edge is not a complete revolution. In the case of the piercing member 143 being a circular cutter, the notch 1432 is provided so that the cutting edge has a breaking position in the circumferential direction, as shown in fig. 16, the position of the notch 1432 does not cut the sealing member 15, and thus, the cut portion of the sealing member 15 has a section connected to the main body, so that the cut portion is not cut off from the main body of the sealing member 15, and the problem of falling into the cavity of the sample container 12 is avoided, and the contact between the collected sample and the medicament is not affected.

According to some alternative embodiments, the bottom end of plunger 141 is snapped together with the top end of piercing member 143, integrally formed, such that piercing member 143 can follow plunger 141 for corresponding movement. In this embodiment, the protruding end of the pushing member 14 can be moved between the initial position and the puncturing position with respect to the mounting through hole 112 by an external force, i.e., the pushing member 14 can be moved from the initial position to the puncturing position and then moved back from the puncturing position to the initial position. In the process that the pushing sample piece 14 returns to the initial position from the puncturing position, the pushing rod 141 drives the puncturing piece 143 to gradually move away from the sample receiving container 12 until the puncturing piece 143 returns to the initial position, and the main channel 111 is reserved again for the treatment instrument to penetrate into the main channel 111 for sampling operation.

Preferably, as shown in fig. 4 and 6, the sample pushing member 14 further includes a resilient plug body 142, the plug body 142 is located between the push rod 141 and the piercing member 143, the top end of the plug body 142 is fixedly connected with the extending end of the push rod 141 through a fastening structure, and the outer peripheral surface of the plug body 142 is fastened with an inward flange portion formed at the peripheral edge of the top end of the piercing member 143 through a fastening ring groove. The outer circumferential surface of the plug body 142 contacts the inner wall of the mounting through hole 112 to have a certain degree of compressive deformation in the radial direction, so that a good scraping effect can be achieved on the sample attached to the wall of the mounting through hole 112.

In this embodiment, the sample pushing member 14 can reciprocate between an initial position and a piercing position, has the capability of repeatedly pushing and piercing, and can repeat the sample collection process by replacing the sample collection container 12 on the base 11. The new sample container 12 to be replaced may or may not be provided with the sealing member 15, and the sample pushing member 14 will not have a puncturing process for the sample container 12 not provided with the sealing member 15. In addition, after the sample pushing member 14 returns to the initial position, the main channel 111 is still unblocked, so that the sample collecting device further has the capability of multiplexing the sampling function of the treatment device, for example, the sample can be collected again after the sample collection is completed once, at this time, a new sample collecting container 12 can be installed on the base 11 again for collecting the sample, or no new sample collecting container 12 is installed, and the treatment device after the sample is completely removed from the main channel 111 is collected in the existing manner.

According to some alternative embodiments, as shown in fig. 1, 10 and 11, the sample receiving container 12 is connected with a container lid 13, and the container lid 13 is adapted to the container mouth of the sample receiving container 12 for detachable sealing connection therewith. The container cover 13 can be sleeved on the neck position of the sample container 12 through a flexible connecting belt. The container cover 13 is connected to the sample receiving container 12 and moves along with the sample receiving container 12, so that after the sample receiving container 12 is detached from the base 11, the container opening can be covered by the container cover 13 immediately, and the situation of finding the cover to seal everywhere is avoided, so that the collection process is more convenient. The case where the container lid 13 is attached to the sample collection container 12 is applicable to a case where the container mouth of the sample collection container 12 is not sealed with a lid or a stopper after completion of sample collection.

Preferably, the container cover 13 is adapted to the outlet of the main channel 111 such that the container cover 13 can be used to connect to the outlet of the main channel 111 to seal the outlet of the main channel 111 when the cartridge 10 is not attached to the instrument nozzle on the handle 20 of the endoscope, and to detach the container cover 13 from the outlet of the main channel 111 when the cartridge 10 is required to be used, the container cover 13 being in an idle state in which it is not connected to the outlet of the main channel 111 and the container opening of the cartridge 12.

According to some alternative embodiments, as shown in fig. 7, 13 and 14, in the sample pushing member 14, the penetrating member 143 and the pushing member 141 are separated, that is, the pushing member 141 and the penetrating member 143 are not connected by a clamping structure, or do not form a strong connection relationship, so-called strong connection relationship may be considered that the pushing member 141 and the penetrating member 143 have strong bonding force, and during the process of returning the pushing member 141 from the end position to the initial position, the pushing member 141 does not return together with the penetrating member 143, but separation occurs. In this embodiment, plunger 141 establishes a temporary connection with piercing element 143 by abutting. In a specific manner, the sample pushing member 14 further includes a resilient plug body 142, where the plug body 142 is located between the push rod 141 and the piercing member 143, the top end of the plug body 142 axially abuts against the extending end of the push rod 141, and the outer peripheral surface of the plug body 142 is clamped with an inward flange portion formed along the periphery of the top end of the piercing member 143 by a provided clamping ring groove so as to be fixedly connected together. The outer circumferential surface of the plug body 142 contacts the inner wall of the mounting through hole 112 to have a certain degree of compressive deformation in the radial direction, so that a good scraping effect can be achieved on the sample attached to the wall of the mounting through hole 112. When the sample pushing member 14 is used for the first time, under the action of an axially downward external force, the push rod 141 of the sample pushing member 14 can approach the sample receiving container 12 relative to the mounting through hole 112, and under the condition that the sample pushing member 14 is in a puncture position, the plug body 142 is inserted into the container opening of the sample receiving container 12 and is detachably and tightly connected with the container opening of the sample receiving container 12 in a sealing manner. The push rod 141 of the sample pushing member 14 is under the action of the axial upward external force, the push rod 141 can be far away from the sample receiving container 12 relative to the mounting through hole 112, and in the process that the push rod 141 is gradually far away from the sample receiving container 12 to the initial position, the plug body 142 is separated from the push rod 141 and is left in the container mouth of the sample receiving container 12. When the sample container 12 is detached from the mounting through hole 112 of the base 11, the plug body 142 can be detached from the base 11 together with the sample container 12, so that the mouth of the sample container 12 after the completion of the sample collection can be sent for inspection with the plug sealed.

In this embodiment, the sample pushing member 14 sequentially performs the piercing operation of the sealing member 15 and the sealing operation of the container mouth of the sample container 12 in the sample pushing process. The plug body 142 is driven by the push rod 141 to be installed in the container mouth of the sample receiving container 12 so as to seal the container mouth of the sample receiving container 12, so that after the sample receiving container 12 is detached from the base body 11, a plug or a cover seal is not required to be found, and the collection process of the sample is quite convenient.

In addition, the push rod 141 can return to the initial position to make the main channel 111 clear, which makes the sample collector further have multiplexing capability for the sampling function of the treatment instrument, for example, sampling can be performed again after one sample collection is completed, and the treatment instrument after sample collection can be completely withdrawn from the main channel 111 to collect the sample in the existing manner.

According to some alternative embodiments, as shown in fig. 15, a handle 1421 protruding upwards is provided at a middle position of the top end of the plug body 142, and the handle 1421 provides a holding position for an operator. With the plug body 142 sealingly coupled to the mouth of the sample container 12, the handle 1421 is positioned outside the sample container 12. In this embodiment, the handle 1421 protruding outside the mouth of the sample container 12 can provide a holding position for an operator to facilitate the removal of the container plug from the sample container, and facilitate the subsequent inspection of the sample stored in the sample container 12.

Preferably, the end of the handle 1421 remote from the sample container 12, i.e., the top end thereof is provided with a flange portion protruding laterally in the radial direction, as shown in fig. 15, which makes the handle 1421 form a T-shaped structure. The flange provided at the end of the handle 1421 provides more grip to facilitate better force application by the operator to easily remove the plug 142 from the sample container 12.

Preferably, a boss portion 1422 protruding upward is provided at a middle position of the top end of the stopper body 142, and a handle 1421 is connected to a top center position of the boss portion 1422, as shown in fig. 14 to 16, so that a gap is formed between an outer circumferential surface of the boss portion 1422 and an inner wall of the container mouth when the stopper body 142 is moved into the container mouth. The boss part 1422 arranged on the plug body 142 can further prolong the distance from the handle 1421 to the contact part between the plug body 142 and the wall of the container mouth and hole, increase the moment arm, and enable an operator to pull out the plug body 142 more easily by properly shaking the handle 1421; in addition, the clearance formed between the boss 1422 and the container mouth can ensure the shaking amplitude of the plug 142, so as to ensure that the plug 142 can be easily pulled out from the sample container 12.

According to some alternative embodiments, as shown in fig. 7 and 14, a relief groove 1411 is provided at a middle position of a bottom end of the push rod 141, and a depth of the relief groove 1411 is slightly larger than a height of the handle 1421, and a radial dimension is slightly larger than a radial dimension of the handle 1421. In the process of abutting the push rod 141 and the plug body 142, the lifting handle 1421 extends upwards into the avoidance groove 1411, so that when the plug body 142 axially abuts the push rod 141, the lifting handle 1421 can enter the avoidance groove 1411, the assembly length is reduced, and the layout space is saved.

According to some alternative embodiments, as shown in fig. 7 and 14, a recess 1423 is provided at a central location of the bottom end of the plug body 142. The recess 1423 provided in the middle of the plug body 142 may facilitate inward deformation of the side of the plug body 142 so that the piercing member 143 may be more easily snapped onto the plug body 142.

According to some alternative embodiments, as shown in fig. 1, 4 and 6, the pushing sample 14 further comprises a rod cap 144, wherein the middle part of the rod cap 144 is coaxially fixed with the protruding end of the fixed push rod 141, and the radial direction of the rod cap 144 is larger than the radial dimension of the push rod 141. The inner wall of the lever cap 144 is provided with a first projection 1441, and the outer wall of the base 11 is provided with a second projection 113. Preferably, the first protrusion 1441 is an annular rib, and the second protrusion 113 is an annular rib. In the process of moving the pushing sample piece 14 from the initial position to the puncturing position, the pushing sample piece can be moved to the position shown in fig. 8, at this time, the puncturing piece 143 just contacts with the sealing piece 15, and then moves to the position shown in fig. 13, at this time, the first protrusion 1441 abuts against the second protrusion 113 from one end far away from the sample receiving container 12 so as to block the pushing sample piece 14 from moving to the puncturing position, so that the operator can remind through the change of resistance, and can choose to continuously press the push rod 141, make the rod cap 144 clamped and fixed with the base body 11, or lift the push rod 141 upwards to return, and repeatedly push samples again. Further pressing of the push rod 141 causes the sample pushing member 14 to move to the puncturing position, and at this time, as shown in fig. 12 and 14, the first protrusion 1441 can abut against the second protrusion 113 from an end close to the sample receiving container 12, so as to block the push rod 141 from moving away from the sample receiving container 12. In this embodiment, the lever cap 144 can cooperate with the second protrusion 113 provided on the outer wall of the base 11 through the first protrusion 1441 on the inner wall thereof to produce a retaining effect, so as to maintain the sample pushing member 14 in the puncturing position.

According to some alternative embodiments, the seal 15 is contoured to fit the mouth shape of the mouth of the sample holder 12 and is secured directly to the rim of the mouth of the sample holder 12 to seal the mouth. In this embodiment, the sealing member 15 moves along with the sample receiving container 12 to seal the mouth of the sample receiving container 12, so that the sample receiving container 12 can be pre-filled with the required medicament for storage, and temporary filling during sample receiving can be avoided, thereby saving time during operation. When the pushing member 14 can be returned to the initial position, the sample can be repeatedly collected by the sample collection container 12 by replacing the sample collection container 12 with a new one on the base 11.

According to some alternative embodiments, at least a portion of the outer peripheral surface of the stem segment of the push rod 141 is in dynamic sealing engagement with the mounting through bore 112. In general, as shown in fig. 12, when the pushing member 14 is in the puncture position, the push rod 141 forms a sealing band with the wall of the mounting through hole 112 by its outer peripheral surface, so that the upper and lower sides of the main passage 111 are sealed. In the case where the outer peripheral surface of the push rod 141 is in dynamic seal fit with the wall of the mounting through hole 112, the intersection of the main channel 111 and the mounting through hole 112 can be blocked by the push rod 141 when the pushing sample 14 is moved to the puncture position, so that when the base 11 is docked to the instrument channel through the main channel 111, the main channel 111 will be isolated from the outside, so that the endoscope can perform a negative pressure suction operation through the instrument channel. When the push rod 141 returns to the initial position, the main channel 111 can be reused for sampling operation.

In another aspect, the present application provides an endoscope, particularly employing the following arrangement:

as shown in fig. 17, the endoscope includes a handle 20 and the cartridge 10 of any of the embodiments described above.

The main channel 111 provided in the base 11 of the cartridge 10 is detachably connected to the instrument tip of the endoscope so that the main channel 111 communicates with the inlet of the instrument channel of the endoscope.

During the use process:

when the sample collector 10 is not in use, as shown in fig. 6 (in the sample pushing piece, the puncture piece 143 is integrated with the push rod 141) and fig. 7 (in the sample pushing piece 14, the puncture piece 143 is separated from the push rod 141), the container mouth of the sample collector 12 is inserted into the mounting through hole 112 to be fixed, and is in butt joint with the bottom hole of the mounting through hole 112, and the sample pushing piece 14 is inserted into the mounting through hole 112, so that the intersection of the mounting through hole 112 and the main channel 111 is a relatively airtight space, and the internal sample can be effectively prevented from being polluted or polluting the environment.

After the sampling of the treatment instrument is completed, the treatment instrument is withdrawn rearward, the sampling portion of the treatment instrument is withdrawn to the intersection position of the main channel 111 and the mounting through hole 112 and opened, and the sample is released. After that, the plunger 141 is pressed, and the plunger 141 moves the puncture member 143 by pushing the plunger 142 in the process from the state shown in fig. 6 to the state shown in fig. 12 or from the state shown in fig. 7 to the state shown in fig. 13, and in this process, the plunger 142 pushes the sample to move toward the sample container 12. When the plunger 14 is moved to the position shown in fig. 13, a portion of the piercing element 143 has penetrated the sealing element 15 but has not completely pierced the sealing element 15, at which point the piercing point of the sealing element 15 is insufficient for the sample to fall into the sample receiving container 12. When the plunger 14 is moved to the piercing position, as shown in fig. 12 and 14, the piercing member 143 pierces the seal 15 and the sample falls through the piercing portion of the seal 15 into the interior cavity of the sample receiving container 12. When the sample pushing member 14 is a member where the puncture member 143 is separated from the plunger 141, the stopper 142 and the puncture member 143 remain at the mouth of the sample container 12 after the plunger 141 returns to the initial position, and seal the sample container 12.

When it is necessary to perform a sample inspection in time, the sample container 12 is detached from the mounting hole 112 of the base 11, and the detached sample container 12 is as shown in fig. 11 (in the case where the puncture member 143 is integrated with the push rod 141 in the sample pushing member and the container cover 13 is connected to the sample container 12) or fig. 15 (in the case where the puncture member 143 is separated from the push rod 141 in the sample pushing member 14). In fig. 15, the plug 142 is retained at the mouth of the sample container 12, and the handle 1421 protrudes from the mouth.

When the pushing sample piece 14 is positioned at the puncture position, the upper side and the lower side of the main channel 111 are sealed by the outer peripheral surface of the push rod 141, so that the substrate 11 can penetrate into the treatment instrument through the inlet of the main channel 111 to continue sampling operation, and negative pressure suction equipment can be connected to the suction nozzle of the endoscope for suction.

The foregoing is merely illustrative of the present invention, and the present invention 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 invention.

Claims

1. A sample collector, characterized in that: for an endoscope comprising an instrument channel, the cartridge comprising a base body (11), a cartridge (12), a pushing member (14) and a sealing member (15);

An intersecting main channel (111) and a mounting through hole (112) are arranged in the base body (11), an outlet of the main channel (111) is used for being abutted against an inlet of the instrument channel, the main channel (111) is used for being penetrated by a treatment instrument, and the treatment instrument can release a sample at an intersection position of the main channel (111) and the mounting through hole (112);

the sample receiving container (12) is detachably connected with the base body (11), and a container opening of the sample receiving container (12) is in butt joint with the mounting through hole (112);

the sealing element (15) seals the container mouth of the sample container (12);

the sample pushing piece (14) is inserted into the mounting through hole (112), and the sample pushing piece (14) can move from an initial position to a puncture position relative to the mounting through hole (112) under the action of external force;

under the condition of the initial position, the extending end of the sample pushing piece (14) is located at the side of the main channel (111), in the process that the sample pushing piece (14) moves from the initial position to the puncture position, the sample pushing piece (14) gradually approaches to the sample receiving container (12) through the main channel (111) to push the sample left in the mounting through hole (112), and under the condition of the puncture position, the sample pushing piece (14) punctures the sealing piece (15) to enable a container opening of the sample receiving container (12) to be communicated with the mounting through hole (112) to receive the sample.

2. A cartridge according to claim 1, wherein: the sample pushing piece (14) comprises a push rod (141) and a puncture piece (143);

the push rod (141) is inserted into the mounting through hole (112);

during the movement of the pushing member (14) from the initial position to the piercing position, the pushing rod (141) pushes the piercing member (143) and the sample gradually closer to the sealing member (15) until the piercing member (143) pierces the sealing member (15).

3. A cartridge according to claim 2, wherein: the puncturing piece (143) is arranged as a ring cutter extending along the circumference of the push rod (141), and the cutting edge of the puncturing piece (143) extends along the circumference of the push rod (141) continuously and faces the sample container (12).

4. A cartridge according to claim 3, wherein: the piercing member (143) comprises a plurality of blade parts (1431), the sub-cutting edges of the blade parts (1431) extend obliquely, and all the blade parts (1431) are arranged along the push rod (141) Zhou Xiangyi in sequence to form annular cutting teeth pointing to the sealing member (15);

and/or the number of the groups of groups,

The piercing member (143) is provided with a notch (1432), the notch (1432) separating the leading and trailing portions of the cutting edge of the piercing member (143).

5. A cartridge according to claim 2, wherein: the sample pushing piece (14) can move between the initial position and the puncture position relative to the mounting through hole (112) under the action of external force;

in the process that the sample pushing piece (14) returns to the initial position from the puncture position, the push rod (141) drives the puncture piece (143) to gradually separate from the sample collection container (12) until the puncture piece (143) returns to the initial position.

6. The sample collector of claim 5 wherein: the sample collection container (12) is connected with a container cover (13), and the container cover (13) is matched with a container opening of the sample collection container (12) and is used for being detachably and hermetically connected with the container opening.

7. A cartridge according to claim 2, wherein: the pushing sample piece (14) further comprises a plug body (142), one end of the plug body (142) is detachably connected with the extending end of the push rod (141), and the other end of the plug body is connected with the puncture piece (143);

The push rod (141) can reciprocate relative to the mounting through hole (112) under the action of external force so as to be close to or far away from the sample collection container (12), the plug body (142) is detachably and hermetically connected with the container mouth of the sample collection container (12) under the condition of the puncture position of the sample pushing piece (14), and the plug body (142) is left in the container mouth of the sample collection container (12) in the process that the push rod (141) gradually moves away from the sample collection container (12) to the initial position;

the plug body (142) can be detached from the base body (11) along with the sample receiving container (12).

8. The sample collector of claim 7 wherein: one end of the plug body (142) is provided with a lifting handle (1421), and under the condition that the plug body (142) is in sealing connection with a container opening of the sample receiving container (12), the lifting handle (1421) is positioned outside the sample receiving container (12).

9. A cartridge according to claim 2, wherein: the sample pushing piece (14) further comprises a rod cap (144) fixed at the extending end of the push rod (141), a first protrusion (1441) is arranged on the inner wall of the rod cap (144), and a second protrusion (113) is arranged on the outer wall of the base body (11);

The first protrusion (1441) can abut against the second protrusion (113) from one end far away from the sample receiving container (12) in the process of moving the sample pushing piece (14) from the initial position to the puncture position so as to prevent the sample pushing piece (14) from moving to the puncture position;

the first protrusion (1441) can be abutted against the second protrusion (113) from one end close to the sample receiving container (12) under the condition of the puncture position of the sample pushing piece (14) so as to block the push rod (141) from being far away from the sample receiving container (12);

and/or the number of the groups of groups,

the sealing piece (15) is fixedly connected to the sample receiving container (12);

and/or the number of the groups of groups,

the outer peripheral surface of the push rod (141) is in dynamic sealing fit with the mounting through hole (112), and can seal the mounting through hole (112) to be positioned on two opposite sides of the main channel (111).

10. An endoscope, characterized in that: comprising a handle (20) and a cartridge (10) according to any of claims 1-9, the outlet of a main channel (111) provided in the base body (11) of the cartridge (10) being detachably connected to the instrument mouth of the endoscope.