CN116898498B

CN116898498B - Sample collection device and endoscope

Info

Publication number: CN116898498B
Application number: CN202311176851.7A
Authority: CN
Inventors: 周震华; 周冠华; 唐鹏
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: CN116898498A

Abstract

The invention provides a sample collection device and an endoscope, relates to the technical field of endoscopes, and solves the problem of inconvenient sample collection. The sample collection device is used for an endoscope; the sample collecting device is internally provided with a main channel, a mounting through hole and a guide through hole which are laterally communicated with the main channel, the main channel is used for communicating an instrument channel, and the intersection area of the main channel and the mounting through hole can allow a treatment instrument to release a sample therein; the sample receiving container is detachable from the base body, and the container opening of the sample receiving container is communicated with the mounting through hole so as to receive the sample pushed by the sample pushing piece; the container cover is movably connected with the sample receiving container and is used for being detachably and hermetically connected with the container opening. According to the invention, the treatment instrument can return to the main channel along a way in one direction under the condition of not withdrawing the endoscope to release the sample, the sample collection container is collected, a tool clamp such as forceps is not required to be used for sampling the sample and putting the sample into the container, and the container cover moves along with the sample collection container, so that the condition of finding the cover and sealing the sample collection container can be avoided, and the sample collection process is more convenient.

Description

Sample collection device and endoscope

Technical Field

The invention relates to the technical field of endoscopes, in particular to a sample collection device 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 collection device and an endoscope, which are used for solving the problem of inconvenient sample collection.

The invention is realized by the following technical scheme:

the invention provides a sample collection device which is used for an endoscope, and comprises a substrate, a sample collection container and a container cover; a main channel and a mounting through hole which is laterally communicated with the main channel are arranged in the matrix, the main channel is used for being communicated with an instrument channel of the endoscope and guiding a treatment instrument penetrating into the main channel to move towards a distal outlet of the instrument channel of the endoscope, and the intersection area of the main channel and the mounting through hole can allow the treatment instrument to release a sample; the sample receiving container is detachably connected to the base body, and a container opening of the sample receiving container is communicated with the mounting through hole and is used for receiving the sample released into the main channel; the container cover is connected to the sample collection container, and is matched with the container opening of the sample collection container and used for being detachably and hermetically connected with the container opening.

When adopting above-mentioned setting structure, the main passageway that sets up in the base member of receipts appearance device can penetrate the treatment instrument, and main passageway is used for communicating with the instrument passageway of endoscope, can let the treatment instrument under the condition that does not take out the endoscope, release the sample of taking in the main passageway, and let the receipts appearance container get up the sample that comes from the installation through-hole, in this, in collecting the sample in-process, the sample need not to expose in the indoor environment, not only can effectively avoid the sample to be polluted, also can avoid the sample to pollute indoor environment, the sample also need not simultaneously through using tool clamp such as tweezers to get and collect in the container, make collecting process not involve the switching between treatment instrument, clamp get instrument and endoscope, also not involve the process from taking the receipts appearance container to opening the receipts appearance container, make collecting the process of sample comparatively convenient. In addition, since the main channel is used for guiding the treatment instrument penetrating into the main channel to move towards the distal outlet of the instrument channel of the endoscope, the treatment instrument can return to the main channel 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 collection process is more convenient. In addition, 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 of the sample receiving container immediately after the sample receiving container is detached from the substrate, the condition of finding the cover everywhere to seal is avoided, and the collection process is more convenient. After the sample collection container is detached, the main channel still has the capability of guiding the treatment instrument to move towards the distal end outlet of the instrument channel of the endoscope, so that necessary guiding and supporting can be provided for the treatment instrument, the sample collection device also has the multiplexing capability for the sampling function of the treatment instrument, for example, sampling can be performed again after one sample collection is completed, at the moment, a new sample collection container can be installed on the substrate again for collecting samples, or the new sample collection container is not installed any more, and the treatment instrument after the sample collection is completely withdrawn from the endoscope, and samples are collected in the existing mode.

Further, in order to better realize the invention, the following arrangement structure is adopted: a guide through hole which is laterally communicated with the main channel is also formed in the matrix; the sample collection device further comprises a sample pushing piece movably inserted into the guide through hole, the sample pushing piece can move between a first position and a second position along the axial direction of the guide through hole relative to the base body under the drive of external force, and in the process that the sample pushing piece moves from the first position to the second position, the sample pushing piece can push the sample left in the installation through hole and/or the guide through hole to the sample collection container.

By adopting the arrangement structure, after the sample pushing piece is arranged on the substrate, the sample pushing piece can be driven to axially move along the guide through hole so as to push the sample to the sample receiving container, so that the condition that the sample is detained in the substrate can be effectively avoided, and the sample can be smoothly collected. The sample is pushed to move by driving the sample pushing piece, so that the sample enters the sample receiving container, and compared with the mode of forcing the sample into the sample receiving container by shaking the endoscope and the like, the operation mode is simpler and more reliable, and the damage to a patient caused by shaking the endoscope can be avoided.

Further, in order to better realize the invention, the following arrangement structure is adopted: the sample collection device further comprises a piston movably arranged in the guide through hole, and the piston is positioned between the sample pushing piece and a container opening of the sample collection container; and in the process that the sample pushing piece moves from the first position to the second position, the sample pushing piece can push the piston until the piston moves into the installation through hole, and under the condition that the sample pushing piece returns to the first position from the second position, the piston is reserved in the installation through hole and seals the installation through hole, and the sample pushing piece seals the guide through hole.

By adopting the arrangement structure, the piston arranged in the matrix can seal the installation through hole after being pushed into the installation through hole by the sample pushing piece, and meanwhile, the sample pushing piece can seal the guide through hole, so that after sample collection is completed and the sample collecting container is detached from the matrix, both sides of the main channel are sealed, the main channel can be reused under the function condition of retaining the main channel, for example, sampling by a treatment instrument can be continuously adopted, samples can be collected in a conventional mode after sampling, and the main channel can be utilized for attraction operation.

Further, in order to better realize the invention, the following arrangement structure is adopted: the inner wall of the installation through hole is provided with a bulge extending along the circumferential direction of the installation through hole, the outer circumferential wall of the piston is provided with a clamping groove, and the piston reserved in the installation through hole is clamped with the bulge through the clamping groove.

By adopting the arrangement structure, the convex part is arranged on the inner wall of the installation through hole and is clamped with the clamping groove arranged on the piston, so that the binding force between the piston and the installation through hole can be improved, the piston can better resist the negative pressure effect when the suction operation is performed, the loosening or the detachment of the installation through hole is avoided, the sealing failure of the piston to the installation through hole is caused, and the suction operation cannot be performed.

Further, in order to better realize the invention, the following arrangement structure is adopted: the annular surface of the bulge facing the sample collection container is arranged to be perpendicular to the plane of the axis of the mounting through hole, and the annular surface of the bulge facing away from the sample collection container is arranged to be an inner conical surface; the piston is set to the outer conical surface towards the terminal surface of receipts appearance container, the draw-in groove be close to the lateral wall of receipts appearance container sets up to be perpendicular to install the plane of through-hole axis, the draw-in groove keep away from the lateral wall of receipts appearance container sets up to with protruding deviating from the outer conical surface that the anchor ring of receipts appearance container matches.

Further, in order to better realize the invention, the following arrangement structure is adopted: the sample pushing piece comprises a push rod, and the push rod is movably inserted into the guide through hole; the sample pushing piece further comprises a sealing plug connected to one end of the push rod, and the sealing plug is in dynamic sealing fit with the wall of the guide through hole; and/or, the sample pushing piece further comprises an elastic reset piece, wherein two ends of the elastic reset piece are respectively connected with the base body and the push rod and used for driving the push rod to reset to the first position; and/or the peripheral wall of the push rod is provided with a convex rib which is in sliding fit with the wall of the guide through hole and extends along the axial direction or the circumferential direction of the push rod.

By adopting the arrangement structure, the guide through hole can be sealed by the sealing plug when the sealing plug is arranged at one end of the push rod. The elastic reset piece with two ends respectively connected with the base body and the push rod can drive the push rod to automatically complete reset after being driven so as to retract into the guide through hole, thereby facilitating the subsequent use of the main channel. The peripheral wall of the push rod is in sliding fit with the hole wall of the guide through hole through the protruding edges, so that the contact area between the push rod and the guide through hole can be effectively reduced, and the sample pushing piece can be driven more easily and smoothly.

Further, in order to better realize the invention, the following arrangement structure is adopted: the outlet of the main channel is for connecting with the inlet of the instrument channel.

When the arrangement structure is adopted, the outlet of the main channel of the sample receiving device is connected with the instrument channel inlet of the endoscope, so that the inlet of the main channel is used as a starting point for penetrating into a treatment instrument, and the structure of the endoscope is not required to be modified or redesigned excessively, thereby being beneficial to popularization.

Further, in order to better realize the invention, the following arrangement structure is adopted: the sample collection device is used for being detachably connected with the instrument mouth of the endoscope through the outlet of the main channel of the base body.

By adopting the arrangement structure, the sample collecting device can be detached from the instrument mouth of the endoscope, so that the device has the advantages that the conventional endoscopic energy structure can be not required to be modified, the purpose of conveniently collecting samples can be achieved by attaching one sample collecting device, and the popularization is more facilitated.

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

When the arrangement structure is adopted, the container cover is matched with the container opening of the sample receiving container, and the outlet of the main channel of the substrate is also matched, so that when the sample receiving device is not connected to the instrument mouth of the endoscope, the container cover in an idle state can be used for sealing the outlet of the main channel, and after the sample receiving container is detached from the substrate, the container cover in the idle state can be used for sealing the container opening, so that samples can be stored in the sample receiving container in a sealing manner for inspection, and the cover does not need to be independently found to cover the outlet of the main channel and the container opening of the sample receiving container.

Further, in order to better realize the invention, the following arrangement structure is adopted: and the inlet of the main channel is detachably connected with a plug, and at least part of the plug is positioned in the main channel and is in sealing fit with the wall of the main channel.

The invention also provides an endoscope, which comprises an endoscope handle and the sample collection device, wherein a main channel arranged in a matrix of the sample collection device is communicated with an instrument channel of the endoscope.

The invention has the following advantages and beneficial effects:

according to the invention, the main channel arranged in the matrix of the sample collection device can penetrate into the treatment instrument, and the main channel is used for communicating with the instrument channel of the endoscope, so that the treatment instrument can release an acquired sample into the main channel under the condition that the endoscope is not pulled out, and the sample collection container can collect the sample from the mounting through hole, so that the sample is not required to be exposed to the indoor environment in the process of collecting the sample, the sample can be effectively prevented from being polluted, the sample is also prevented from polluting the indoor environment, and meanwhile, the sample is not required to be clamped and collected into the container by using tools such as forceps, so that the collection process does not involve the switching among the treatment instrument, the clamping tool and the endoscope, and the process from the sample collection container to the sample collection container opening, and the process of collecting the sample is convenient. In addition, since the main channel is used for guiding the treatment instrument penetrating into the main channel to move towards the distal outlet of the instrument channel of the endoscope, the treatment instrument can return to the main channel 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 collection process is convenient. In addition, the container cover is movably connected to the sample receiving container and moves along with the sample receiving container, so that after the sample receiving container is detached from the substrate, the container cover can be used for covering the container opening of the sample receiving container, the situation of finding the cover everywhere to seal is avoided, and the collection process is more convenient. After the sample collection container is detached, the main channel still has the capability of guiding the treatment instrument to move towards the distal end outlet of the instrument channel of the endoscope, so that necessary guiding and supporting can be provided for the treatment instrument, the sample collection device also has the multiplexing capability for the sampling function of the treatment instrument, for example, sampling can be performed again after one sample collection is completed, at the moment, a new sample collection container can be installed on the substrate again for collecting samples, or the new sample collection container is not installed any more, and the treatment instrument after the sample collection is completely withdrawn from the endoscope, and samples are collected in the existing mode.

Drawings

In order to more clearly illustrate the embodiments of the application 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 application, 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 the structure of an endoscope of the present application;

FIG. 2 is a schematic view of the appearance structure of the sample collection device according to the present application when the sample pushing member is at the first position;

FIG. 3 is an exploded view of the sample collection device of the present application;

FIG. 4 is a cross-sectional view of an assembly of a base and an end cap;

FIG. 5 shows the internal structure of the base body with the pushing member in the first position;

FIG. 6 is a schematic view of the appearance of the sample collection device according to the present application when the sample pushing member is in the second position;

FIG. 7 shows the internal structure of the base body with the pushing member in the second position;

FIG. 8 shows the internal structure of the base body when the piston is left in the mounting through hole;

FIG. 9 shows the structure of the container lid in an idle state;

FIG. 10 shows the structure with both the container lid and the stopper in an idle state;

FIG. 11 shows the internal structure at the mounting through hole of the base body after the sample receiving container is detached;

fig. 12 shows the structure of the sample container covered with the container cover.

Marked in the figure as:

10. a sample collection device;

11. a base; 111. a main channel; 112. mounting through holes; 1121. a protrusion; 113. a guide through hole; 114. sealing the diaphragm;

12. a sample collection container;

13. a container cover;

14. pushing the sample piece; 141. a push rod; 1411. a rib; 142. a sealing plug; 143. an elastic reset piece;

15. a piston; 151. a clamping groove;

16. an end cap; 161. perforating;

17. a plug;

20. an endoscope 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 collection device, as shown in fig. 1-12, specifically configured as follows:

the sampling device is used for an endoscope, and is used for providing a main channel 111 extending along the axial direction of an instrument channel of the endoscope, so that a treatment instrument can reciprocate along one channel to realize the actions of insertion, sampling, lofting and extraction.

As shown in fig. 2, the sample collection device 10 includes a base 11, a sample collection container 12, and a container cover 13.

As shown in fig. 4, a passage including a main passage 111 and a mounting through hole 112 is provided in the base 11. The main channel 111 of the sample collection device 10 is adapted to communicate with the instrument channel of the endoscope, the main channel 111 having an inlet at the right, proximal end and an outlet at the left, distal end in fig. 4.

The treatment instrument can be penetrated into the main channel 111 from the inlet and can be penetrated out from the outlet of the main channel 111, the main channel 111 can guide the treatment instrument penetrated into the main channel to move towards the distal outlet of the instrument channel of the endoscope, so that the treatment instrument penetrated into the main channel 111 can axially and singly advance along one channel formed by the main channel 111 and the instrument channel to reach the distal end of the instrument channel of the endoscope, and can axially and singly retreat along one channel formed by the main channel 111 and the instrument channel to enable the treatment instrument to reach the inside of the main channel 111 to finish lofting.

The internal hollow of the main channel 111 is sufficiently large to allow an operator to operate the treatment instrument at the rear end, causing the treatment instrument to release its gripped sample into the main channel 111.

The mounting through hole 112 is located at one side of the main passage 111, and communicates with the lateral direction of the main passage 111 to form an intersection region. If the sample released into the main channel 111 is not located at the intersection area of the main channel 111 and the mounting through hole 12, the sample may be moved into the intersection area of the main channel 111 and the mounting through hole 12 by shaking the endoscope or the sample receiving device 10, and then enter into the mounting through hole 12. Preferably, as shown in fig. 4, the mounting through hole 112 perpendicularly intersects the main channel 111, wherein the position where the treatment instrument releases the sample is determined as the intersection region.

The sample container 12 has an inner cavity and a container opening exposing the inner cavity, and as shown in fig. 12, the sample container 12 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. The sample receiving container 12 is detachably connected to the base 11, and preferably, the sample receiving container 12 is disposed coaxially with the mounting through hole 112, and the container mouth of the sample receiving container 12 is inserted into the aperture of the mounting through hole 112 to be fixed and communicated with each other, so that the sample receiving container 12 can receive the sample released into the main channel 111.

The container cover 13 is movably connected with the sample receiving container 12, the container cover 13 is matched with the container opening of the sample receiving container 12, when the container cover 13 is connected with the container opening of the sample receiving container 12, the container cover 13 can seal the container opening, and when the sample collected in the sample receiving container 12 needs to be tested, the container cover 13 can be detached from the container opening.

In the sample collection device 10, the sample collection container 12 is connected to the mounting hole 112 in advance so as to be fixed to the base 11, and specifically, as shown in fig. 5, the sample collection container 12 is connected to the hole position of the mounting hole 112 by means of a snap-fit connection. At this time, the container lid 13 is not connected to the container mouth of the sample container 12.

Preferably, after the sample container 12 is clamped with the mounting through hole 112, a ring-shaped sealing belt is formed at the joint.

In this embodiment, the main channel 111 provided in the base 11 of the sample collection device 10 can penetrate into a treatment instrument, and the main channel 111 is used for communicating with an instrument channel of an endoscope, so that the treatment instrument can release an obtained sample into the main channel 111 without withdrawing the endoscope, and the sample collection container 12 can collect the sample from the mounting through hole 112, so that the sample does not need to be exposed to an indoor environment in the process of collecting the sample, the sample can be effectively prevented from being polluted, the sample can also be prevented from polluting the indoor environment, and 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 the treatment instrument, the clamping tool and the endoscope, and the process from taking the sample collection container to opening the sample collection container, and the process of collecting the sample is convenient. In addition, since the main channel 111 is used for guiding the treatment instrument penetrating into the main channel to move towards the distal outlet of the instrument channel of the endoscope, 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 collection process is convenient. In addition, the container cover 13 is movably 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 cover 13 can be used for covering the container opening of the sample receiving container 12, and the situation of finding the cover to seal everywhere is avoided, so that the collection process is more convenient. After removing the sample receiving container 12, the main channel 111 still has the capability of guiding the treatment instrument to move towards the distal end outlet of the instrument channel of the endoscope, so that the necessary guiding and supporting can be provided for the treatment instrument, so that the sample receiving device 10 also has the multiplexing capability for the sampling function of the treatment instrument, for example, when sampling is performed again after sampling is completed once, a new sample receiving container 12 can be installed on the substrate again for receiving the sample, or the new sample receiving container 12 is not installed any more, and the treatment instrument after the sample is taken out of the endoscope completely, the sample is collected in the existing mode.

The sample collection device 10 may be non-detachably connected to the endoscope handle 20 of the endoscope or may be detachably connected to the endoscope handle 20 of the endoscope. The main channel 111 may be the inlet of the instrument channel of the endoscope, or may be a middle section of the instrument channel of the endoscope, which connects the two front and rear instrument channel sub-sections.

According to some alternative embodiments, as shown in fig. 1, the main channel 111 of the sample receiving device 10 is adapted to interface with the inlet of the instrument channel of the endoscope, and in particular, the outlet of the main channel 111 is adapted to be fixedly connected with the inlet of the instrument channel. The outlet of the main channel 111 of the sample receiving device 10 is adapted to be connected to the instrument channel inlet of the endoscope, so that the inlet of the main channel 111 serves as a starting point for penetrating the treatment instrument, and thus, the structure of the endoscope can be easily popularized without excessive modification or redesign.

Preferably, the sample receiving device 10 is adapted to be detachably connected to the instrument tip of the endoscope through the outlet of the main channel 111 of the base body 11, in which case the outlet of the main channel 111 is adapted to the instrument tip. As shown in fig. 4 and 9, the outlet hole shape of the main channel 111 of the base 11 is provided in a structure matching the mouth shape of the instrument mouth, so that the base 11 can be directly fixed to the instrument mouth provided on the handle of the endoscope through the outlet of the main channel 111. The sample collection device 10 of the preferred embodiment can be separated from the handle of the endoscope before use, stored separately, and detached from the instrument mouth of the endoscope after use, which has the advantages that the conventional endoscopic structure can be not needed to be modified, and the conventional instrument mouth on the handle of the endoscope can be used for attaching a sample collection device 10, thereby achieving the purpose of conveniently collecting samples, and being more beneficial to popularization.

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 when the sample receiving device 10 is not attached to the instrument nozzle on the handle of the endoscope, to seal the outlet of the main channel 111, and to detach the container cover 13 from the outlet of the main channel 111 when the sample receiving device 10 is required to be used, wherein the container cover 13 is in an idle state in which it is not connected to the outlet of the main channel 111 and the container opening of the sample receiving container 12. In this preferred embodiment, the container cover 13 is adapted to fit the outlet of the main channel 111 of the sample receiving container 12 in addition to the container mouth of the sample receiving container 12, so that the container cover 13 in the idle state can seal the outlet of the main channel 111 when the sample receiving device 10 is not connected to the instrument mouth of the endoscope, and the container cover 13 in the idle state can seal the container mouth after the sample receiving container 12 is detached from the base 11, so that the sample can be sealed and stored in the sample receiving container 12 for inspection, and the cover does not need to be separately found to cover the outlet of the main channel 111 and the container mouth of the sample receiving container 12.

According to some alternative embodiments, as shown in fig. 3 and 9, the container lid 13 is removably sleeved at the neck of the sample container 12 by an integrally provided flexible connecting band. The container cover 13 is connected to the sample container 12 through the connecting belt, so that the container cover 13 is connected to the sample container 12 when in the idle state as shown in fig. 9, and thus the situation that the sample container 12 is closed by searching for a bottle stopper can be avoided, and the operation in the operation is reduced.

According to some alternative embodiments, as shown in fig. 2, a plug 17 is detachably connected to the inlet of the main channel 111, and at least part of the plug 17 is located in the main channel 111 and is in sealing engagement with the wall of the main channel 111.

Preferably, as shown in fig. 2 and 10, the plug 17 is sleeved in a ring groove arranged on the base 11 near the inlet of the main channel 111 by an integrally arranged flexible connecting belt. The plug 17 is connected to the base 11 by a connecting band, so that the plug 17 is also connected to the base 11 when in the idle state as shown in fig. 10, which can avoid the situation of finding the plug to close the entrance of the main channel 111 everywhere when the entrance of the main channel 111 needs to be closed, so as to reduce the operation in operation.

According to alternative embodiments, as shown in fig. 4, a guiding through hole 113 is further provided in the base 11 at one side of the main channel 111, and the guiding through hole 113 is laterally communicated with the main channel 111 to form an intersection area, preferably, the guiding through hole 113 is vertically intersected with the main channel 111 and coaxially arranged with the mounting through hole 112. The sample collection device 10 is provided with a sample pushing piece 14, and the sample pushing piece 14 is movably inserted in the guide through hole 113 and can move between a first position and a second position, namely the up-down direction in fig. 4, along the axial direction of the guide through hole 113 relative to the base body 11 under the driving of an external force along the axial direction of the guide through hole 113. Wherein, referring to fig. 5, preferably, the first position is defined as a position where the pushing member 14 is located farthest from the sample container 12 in the axial direction of the guide through hole 113, and referring to fig. 7, the second position is defined as a position where the pushing member 14 is closest to the sample container 12 in the axial direction of the guide through hole 113. Since the endoscope or the sample receiving device 10 may have a certain angle change or shake during operation, the sample located in the main channel 111 or the mounting through hole 112 may enter the guide through hole 113 and be located on the moving path of the sample pushing member 14, and thus the sample pushing member 14 can push the sample remained in the mounting through hole 112 and/or the guide through hole 113 toward the sample receiving container 12 during the movement of the sample pushing member 14 from the first position to the second position. After the sample pushing piece 14 is arranged on the base body 11, the sample pushing piece 14 can be driven to axially move along the guide through hole 113 so as to push the sample to the sample receiving container 12, so that the condition that the sample stays in the base body 11 can be effectively avoided, and the sample can be successfully collected. The sample is pushed to move by driving the sample pushing member 14 so that the sample enters the sample receiving container 12, and compared with the method of shaking the endoscope to force the sample into the sample receiving container 12, the operation method is simpler and more reliable, and the damage to a patient caused by shaking the endoscope can be avoided.

According to some alternative embodiments, as shown in fig. 3 and 5, the sample pushing member 14 includes a push rod 141, the push rod 141 is coaxially disposed with the guide through hole 113, the bottom of the push rod 141 is inserted into the guide through hole 113 to be movably guided and matched with the hole wall of the guide through hole 113, and the push rod 141 can move up and down along the axial direction thereof.

Preferably, the outer circumferential wall of the push rod 141 is provided with a rib 1411 extending in the axial direction or the circumferential direction of the push rod 141, such as in fig. 3 and 5, the rib 1411 is preferably a rib in the axial direction of the push rod 141. The push rod 141 is slidably matched with the wall of the guide through hole 113 through the outer peripheral surface of the convex rib 1411, so that the contact area between the push rod 141 and the guide through hole 113 can be effectively reduced, and the sample pushing piece 14 can be driven more easily and smoothly.

According to some alternative embodiments, as shown in fig. 3 and 5, the sample pushing member 14 further includes a sealing plug 142 connected to the bottom end of the push rod 141, and the sealing plug 142 is in dynamic sealing engagement with the wall of the guide through hole 113. After the sealing plug 142 is disposed at the bottom end of the push rod 141, the sealing plug 142 may closely contact the wall of the guide through hole 113, so that the sealing plug 142 has a better pushing effect on the sample. After the sample collection is completed and the sample collection container 12 is removed, the sealing plug 142 can seal the installation through hole 112, so that when the plug 17 seals the inlet of the main channel 111 and simultaneously when the sample collection container 12 is sealed with the orifice of the installation through hole 112, the inlet and two sides of the main channel 111 can be ensured to be sealed, and the negative pressure suction operation can be normally performed after the endoscope is connected to the negative pressure suction device.

Preferably, as shown in fig. 3-5, a sealing plug 142 is removably attached to the bottom end of the push rod 141. The sample collection device 10 further comprises an end cover 16, the end cover 16 and the guide through hole 113 are coaxially arranged, the end cover 16 is detachably and fixedly connected to the base body 11, and a through hole 161 which is coaxial with the push rod 141 and matched with the cross section of the push rod 141 is formed in the middle of the end cover 16, so that the through hole 161 of the end cover 16 can play an axial guide role on the push rod 141. When the push rod 141 is provided with the convex rib 1411, the inner wall of the perforation 161 is correspondingly provided with the avoiding groove matched with the convex rib 1411, so that the convex rib 1411 can penetrate into the avoiding groove of the perforation 161 in a one-to-one correspondence manner, and the end cover 16 can limit the circumferential rotation of the push rod 141 through the perforation 161.

When the sample pushing member 14 is assembled on the base 11, the push rod 141 is inserted through the through hole 161 of the end cap 16, then the sealing plug 142 is mounted on the bottom end of the push rod 141, and then the sealing plug 142 is pressed into the guide through hole 113, and the end cap 16 is fixed on the base 11.

According to some alternative embodiments, as shown in fig. 4 and 5, the aperture of the through hole 161 of the end cover 16 is smaller than the aperture of the guide through hole 113, that is, the aperture of the through hole 161 of the end cover 16 is smaller than the outer diameter of the sealing plug 142, and the push rod 141 can be axially limited by the end cover 16, so as to prevent the push rod 141 from falling out of the guide through hole 113.

According to some alternative embodiments, as shown in fig. 3 and 5, the pushing member 14 further comprises an elastic restoring member 143, and the bottom end and the top end of the elastic restoring member 143 are connected to the base 11 and the pushing rod 141, respectively. The elastic restoring member 143 provides the restoring force to the push rod 141 to restore to the first position. The elastic reset piece 143 with two ends respectively connected with the base body 11 and the push rod 141 can drive the push rod 141 to automatically complete reset after being driven to push the sample, so as to retract into the guide through hole 113, leave the main channel 111, and facilitate the subsequent use of the main channel 111, such as penetrating the treatment instrument into the main channel 111 again.

Preferably, as shown in fig. 2, 3 and 5, the elastic restoring member 143 is provided as an elastic sleeve, a rubber-enclosed cavity wall is formed around the sleeve, and a cavity with an upper opening and a lower opening is formed inside the sleeve, and the cavity is compressible up and down and can help the restoring of the push rod 141 after the push rod 141 is pressed down. The top end opening of the sleeve is clamped with a circle of clamping grooves arranged on the periphery of the top end pressing cap of the push rod 141 to form a circle of sealing band, the bottom end opening of the sleeve is adhered and fixed with the base body 11 through glue, and an annular sealing band is formed between the bottom end of the sleeve and the base body 11, so that the sleeve seals the top end opening of the guide through hole 113. Of course, the cavity wall of the sleeve can also be provided with a window for communicating the inside and the outside, so that the sleeve can be compressed more easily.

According to some alternative embodiments, as shown in fig. 3, 5 and 7, the sample collection device 10 further includes a piston 15, where the piston 15 is disposed in the guide through hole 113, and can move axially along the guide through hole 113 and further move axially downward along the mounting through hole 112 after moving into the mounting through hole 112. The initial position of the piston 15 is located in the guide through hole 113 at a position between the bottom end of the sample pushing member 14 and the container mouth of the sample container 12, and the piston 15 is driven by the moving push rod 141. Referring to fig. 5 and 7, in moving the pushing member 14 from the first position to the second position from the top down, the bottom end of the pushing member 14 can contact the top surface of the piston 15, push and move the piston 15 from the guide through hole 113 into the mounting through hole 112, and finally push and move the piston 15 to a position close to the container mouth of the sample container 12. Referring to fig. 7 and 8, in the case where the push-sample member 14 is returned from the second position to the first position from the bottom to the top, the push rod 141 is separated from and gradually separated from the piston 15, and the piston 15 is operatively fixed with the wall of the mounting through-hole 112 such that the piston 15 is left in the mounting through-hole 112, and the piston 15 contacts the wall of the mounting through-hole 112 through its outer peripheral wall to seal the mounting through-hole 112. Referring to fig. 8, the sample pushing member 14 returned to the first position is brought into contact with the wall of the guide through hole 113 through the sealing plug 142 at the bottom end of the push rod 141 to seal the guide through hole 113 such that the upper and lower sides of the main passage 111 are simultaneously and respectively sealed by the sealing plug 142 and the piston 15. In this embodiment, the piston 15 disposed in the base 11 may seal the mounting through hole 112 after being pushed into the mounting through hole 112 by the sample pushing member 14, and at the same time, the sample pushing member 14 may seal the guiding through hole 113, so that after completing sample collection and removing the sample receiving container 12 from the base 11, both sides of the main channel 111 are sealed, and the main channel 111 may be reused while retaining the function of the main channel 111, for example, the main channel 111 may be penetrated into a treatment instrument for continuous sampling, and the sample may be collected in a conventional manner after sampling, or the inlet of the main channel 111 may be sealed by the plug 17, and then a negative pressure suction device may be connected to an endoscope connected to the sample receiving device for suction operation.

According to some alternative embodiments, as shown in fig. 4, 8 and 11, on the inner wall of the mounting through hole 112 in the base 11, a protrusion 1121 is provided at a position near the container mouth of the sample receiving container 12, while the outer peripheral wall of the piston 15 is provided with a clamping groove 151 adapted to be clamped with the protrusion 1121, and when the piston 15 is left in the mounting through hole 112, the piston 15 is clamped with the protrusion 1121 through the clamping groove 151, so that the piston 15 is firmly fixed above the container mouth of the sample receiving container 12.

Preferably, the protrusion 1121 is provided as an annular protrusion extending circumferentially along the mounting through hole 112, and the outer peripheral wall of the piston 15 is provided with a ring-shaped engaging groove 151 adapted to be engaged with the annular protrusion. When the piston 15 is left in the mounting through hole 112, the piston 15 is clamped with the annular protrusion through the annular clamping groove, so that the piston 15 is firmly fixed above the container mouth of the sample container 12.

In the process of moving the sample pushing member 14 from the first position to the second position from top to bottom, the bottom of the piston 15 is firstly abutted against the protrusion 1121, then the protrusion 1121 forces the bottom of the piston 15 to perform compression deformation to one side of the clamping groove 151 (the clamping groove 151 performs compression deformation at the same time), and finally the bottom of the piston 15 is extruded to pass over the protrusion 1121 and then is restored, and the protrusion 1121 enters the clamping groove 151. Through set up protruding 1121 come with the draw-in groove 151 joint that sets up on the piston 15 on the installation through-hole 112 inner wall, can improve the cohesion of piston 15 and installation through-hole 112, can make piston 15 resist the negative pressure effect better when doing the suction operation, avoid becoming flexible or breaking away from installation through-hole 112, cause piston 15 to the sealed inefficacy of installation through-hole 112, lead to can't carry out the suction operation.

Preferably, the annular surface of the protrusion 1121 facing the sample receiving container 12 is set to be perpendicular to the plane of the axis of the mounting through hole 112, the annular surface of the protrusion 1121 facing away from the sample receiving container 12 is set to be an inner conical surface, meanwhile, the end surface of the piston 15 facing the sample receiving container 12 is set to be an outer conical surface, the side wall of the clamping groove 151 close to the sample receiving container 12 is set to be perpendicular to the plane of the axis of the mounting through hole 112, and the side wall of the clamping groove 151 far away from the sample receiving container 12 is set to be an outer conical surface matched with the annular surface of the protrusion 1121 facing away from the sample receiving container 12. The protrusion 1121 is arranged to be of a structure with the top concave and the bottom flat, the bottom of the piston 15 is arranged to be flat, and the clamping groove 151 is arranged to be a flat bottom wall and an inclined surface with the top wall inclined upwards, so that clamping fit with the protrusion 1121 can be completed more easily in the process of clamping the piston 15 with the protrusion 1121, and the piston 15 can resist negative pressure and avoid upward movement.

According to some alternative embodiments, as shown in fig. 4 and 9, a sealing membrane 114 is disposed in the main channel 111 of the base 11 near the outlet, the sealing membrane 114 is formed by a plurality of membrane flaps equidistantly arranged around the axis of the main channel 111, when the membrane flaps disposable instruments pass through the sealing membrane 114 distally, the membrane flaps after being turned over can be tightly contacted with the outer peripheral surface of the disposable instruments to form a sealing belt, so that liquid backflow into the main channel 111 can be effectively avoided, and the preserving liquid stored in the sample receiving container 12 and used for preserving samples can be prevented from flowing into a human body.

In another aspect, the present application also provides an endoscope comprising an endoscope handle 20 and the sample collection device 10 of any of the embodiments described above.

The main channel 111 provided in the base 11 of the sample collection device 10 communicates with the instrument channel of the endoscope. In some embodiments, the outlet of the main channel 111 of the cartridge 10 is in communication with the inlet of the instrument channel, e.g., the cartridge 10 may be removably coupled to an instrument nozzle configured with an endoscope handle of an endoscope via the outlet of the main channel 111. In some embodiments, the sample collection device 10 is integral with the endoscope, and the sample collection device 10 can be positioned in any suitable location, such as in the middle of the handle 20 of the endoscope, with the main channel 111 being positioned in the middle of the instrument channel, and the inlet and outlet of the main channel 111 being engaged with the two separate instrument channel subsections.

In this embodiment, the sample collection device 10 and the endoscope handle 20 are separately provided as an example:

during the use process:

when the sample collection device 10 is not in use, as shown in fig. 2, the container mouth of the sample collection container 12 is inserted into the mounting through hole 112 for fixing, the bottom of the mounting through hole 112 is closed, the container cover 13 is covered at the outlet of the main channel 111, the plug 17 is covered at the inlet of the main channel 111, and the sample pushing piece 14 seals the guiding through hole 113, so that the inside of the substrate 11 is a surrounding sealed environment, and internal pollution can be effectively avoided.

Before the sample collection device 10 is attached to the instrument nozzle of the endoscope handle 20, as shown in fig. 9, the container cover 13 is detached from the outlet of the main channel 111, and the outlet of the main channel 111 is attached to the instrument nozzle, so that the structure shown in fig. 1 is formed.

When the sample collection device 10 is required to be used, for example, when a treatment instrument is required to be inserted for sampling, as shown in fig. 1, the plug 17 for blocking the main channel 111 is detached in the direction of the broken line, and the inlet of the main channel 111 is exposed, so that the sample is as shown in fig. 10.

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 junction position of the main channel 111 and the mounting through hole 112 and opened, and the sample is released. After that, as in the process of fig. 5 to 7, the push rod 141 is pressed, the elastic restoring member 143 is compressed, and the push rod 141 pushes the piston 15 through the sealing plug 142, so that the piston 15 pushes the sample which does not enter the sample collection container 12 to move toward the sample collection container 12, and the sample can be collected in the sample collection container 12 as much as possible. Then, as shown in fig. 6 to 8, the elastic restoring member 143 pushes the push rod 141 to restore, the restored push rod 141 seals the guide through hole 113 through the sealing plug 142, and the piston 15 is retained in the installation through hole 112 to be fastened to the protrusion 1121, so as to seal the installation through hole 112.

When it is necessary to carry out a sample in time, the sample collection container 12 is detached from the mounting hole 112 of the base 11, and then the container lid 13 is covered on the container mouth as shown in fig. 12, and at this time, the mounting hole 112 of the base 11 is as shown in fig. 11.

Since both the upper and lower sides of the main channel 111 are sealed, the substrate 11 can penetrate into the treatment instrument through the inlet of the main channel 111 to continue sampling operation, or can be connected to a suction nozzle of an endoscope for suction by a negative pressure suction device, when negative pressure suction is required, the idle plug 17 is required to be mounted at the inlet of the main channel 111 according to the dotted line direction as shown in fig. 1, and the part of the main channel 111 communicating with the outside is completely closed and sealed.

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 collection device for an endoscope, characterized in that: the sample collection device (10) comprises:

a base body (11) having a main channel (111) and a mounting through hole (112) and a guide through hole (113) provided therein, which are in lateral communication with the main channel (111), the main channel (111) being for communication with an instrument channel of the endoscope and for guiding a treatment instrument penetrating therethrough to move toward a distal outlet of the instrument channel of the endoscope, an intersection area of the main channel (111) and the mounting through hole (112) being capable of allowing a treatment instrument to release a sample therein;

A sample receiving container (12) detachably connected to the base body (11), a container mouth of the sample receiving container (12) communicating with the mounting through hole (112) for receiving the sample released into an intersection area of the main channel (111) and the mounting through hole (112);

a container cover (13) connected to the sample receiving container (12), the container cover (13) being adapted to the container mouth of the sample receiving container (12) for detachable sealing connection therewith;

the pushing sample piece (14) is movably inserted into the guide through hole (113), the pushing sample piece (14) can move between a first position and a second position along the axial direction of the guide through hole (113) relative to the base body (11) under the driving of external force, and the pushing sample piece (14) can push the sample remained in the installation through hole (112) and/or the guide through hole (113) to the sample receiving container (12) in the process of moving the pushing sample piece (14) from the first position to the second position.

2. The sample collection device of claim 1, wherein: the sample collection device (10) further comprises a piston (15) movably arranged in the guide through hole (113), and the piston (15) is positioned between the sample pushing piece (14) and a container opening of the sample collection container (12);

In the process that the sample pushing piece (14) moves from the first position to the second position, the sample pushing piece (14) can push the piston (15) until the piston (15) moves into the installation through hole (112), and when the sample pushing piece (14) returns to the first position from the second position, the piston (15) is left in the installation through hole (112) and seals the installation through hole (112), and the sample pushing piece (14) seals the guide through hole (113).

3. The sample collection device of claim 2, wherein: the inner wall of the installation through hole (112) is provided with a protrusion (1121) extending along the circumferential direction of the installation through hole (112), the outer circumferential wall of the piston (15) is provided with a clamping groove (151), and the piston (15) reserved in the installation through hole (112) is clamped with the protrusion (1121) through the clamping groove (151).

4. A sample collection device according to claim 3, wherein: the annular surface of the bulge (1121) facing the sample collection container (12) is arranged as a plane perpendicular to the axis of the mounting through hole (112), and the annular surface of the bulge (1121) facing away from the sample collection container (12) is arranged as an inner conical surface;

The end face of the piston (15) facing the sample collection container (12) is provided with an outer conical surface, the side wall, close to the sample collection container (12), of the clamping groove (151) is provided with a plane perpendicular to the axis of the mounting through hole (112), and the side wall, far away from the sample collection container (12), of the clamping groove (151) is provided with an outer conical surface matched with the annular surface, away from the sample collection container (12), of the protrusion (1121).

5. The sample collection device of claim 1, wherein: the sample pushing piece (14) comprises a push rod (141), and the push rod (141) is movably inserted into the guide through hole (113);

the pushing sample piece (14) further comprises a sealing plug (142) connected to one end of the push rod (141), and the sealing plug (142) is in dynamic sealing fit with the wall of the guide through hole (113);

and/or, the sample pushing piece (14) further comprises an elastic reset piece (143), and two ends of the elastic reset piece (143) are respectively connected with the base body (11) and the push rod (141) and are used for driving the push rod (141) to reset to the first position;

and/or, the outer peripheral wall of the push rod (141) is provided with a convex rib (1411) which is in sliding fit with the hole wall of the guide through hole (113) and extends along the axial direction or the circumferential direction of the push rod (141).

6. A sample collection device according to any one of claims 1-5, wherein: the outlet of the main channel (111) is for connecting with the inlet of the instrument channel.

7. The sample collection device of claim 6, wherein: the sample collection device is used for being detachably connected with the instrument mouth of the endoscope through the outlet of the main channel (111) of the base body (11).

8. The sample collection device of claim 6, wherein: the container cover (13) is adapted to the outlet of the main channel (111) for detachable sealing connection with the outlet of the main channel (111).

9. The sample collection device of claim 6, wherein: and a plug (17) is detachably connected to the inlet of the main channel (111), and at least part of the plug (17) is positioned in the main channel (111) and is in sealing fit with the wall of the main channel (111).

10. An endoscope, characterized in that: comprising an endoscope handle (20) and a sample collection device (10) according to any of claims 1-9, a main channel (111) provided in a base body (11) of the sample collection device (10) being in communication with an instrument channel of the endoscope.