CN219397365U - Sealing plug and sampling device - Google Patents

Abstract

The application provides a sealing plug and sampling device relates to medical instrument technical field for solve sealed technical problem between sample subassembly and the sample container. A sealing plug is mountable between and communicates with a sampling assembly and a sample container, the sealing plug including a connecting portion and a sealing portion. The connecting portion is used for connecting the sampling assembly, and the sealing portion is connected with the connecting portion and used for sealing the sample container. The sealing plug is provided with a sampling channel penetrating through the connecting part and the sealing part, and at least part of the sealing part can extend into the sample container and seal the sample container. When the sample container is assembled with the sampling assembly, the sealing plug may extend into the sample container and seal the sample container. Meanwhile, the pathological effusion can flow into the sample container through the sampling channel penetrating through the connecting part and the sealing part. In this way, the sealing plug not only guides the collection of pathological liquid product, but also seals the sample container.

Description

Sealing plug and sampling device

Technical Field

The application relates to the technical field of medical equipment, in particular to a sealing plug and a sampling device.

Background

The sample container is commonly used for collecting pathological effusion such as sputum, gastric juice, urine and the like of a human body. In sampling, it is necessary to attach the sample container to the sampling device and then attach the sampling device to the sampling nozzle of the endoscope, thereby allowing pathological fluid to be withdrawn from the sampling nozzle. This requires good sealing between the sample container and the sampling device, otherwise the negative pressure for aspiration is increased and the aspiration efficiency is not high.

In patent CN110520059B, as shown in fig. 1, a flow path extending device is provided on the sampling assembly. When the sampling cap of the sample container is connected to the sampling assembly, the end face of the flow path extension device must be spaced from the sampling assembly in order to allow the gas in the sample container to flow out of the vent passage and allow the pathological liquid to flow in from the sampling passage. Otherwise, the exhaust passage and the sampling passage cannot be formed. However, the flow path extension device cannot seal the sampling assembly, resulting in negative pressure leakage.

Disclosure of Invention

The embodiment of the application provides a sealing plug and sampling device for solve or at least partly solve the sealed technical problem between sample subassembly and the sample container.

In order to achieve the above purpose, the present application adopts the following technical scheme:

embodiments of a first aspect of the present application provide a sealing plug mountable between and communicating with a sampling assembly and a sample container, the sealing plug comprising a connecting portion and a sealing portion. The connecting portion is used for connecting the sampling assembly, and the sealing portion is connected with the connecting portion and used for sealing the sample container. The sealing plug is provided with a sampling channel penetrating through the connecting part and the sealing part, and at least part of the sealing part can extend into the sample container and seal the sample container.

In some embodiments, a sealing end surface is provided on a side of the sealing portion adjacent to the connecting portion, and an area of the sealing end surface is larger than a projected area of the connecting portion on the sealing end surface.

In some embodiments, the sampling channel includes a first channel and a second channel. The first channel is used for communicating the sampling outlet of the sampling assembly with the sampling port of the sample container, and the second channel is used for communicating the sampling inlet of the sampling assembly with the sampling port of the sample container. The first channel and the second channel penetrate through the sealing part and extend to the connecting part, and openings of the first channel and the second channel on the sealing part face into the sample container.

In some embodiments, the opening of the first channel on the seal is located on the axis of the first channel and the opening of the second channel on the seal is towards the bottom of the sample container.

In some embodiments, the connection includes a first joint and a second joint. The first connector is connectable to a sampling outlet of the sampling assembly, and the first passage extends through the first connector. The second connector is connectable to the sampling inlet of the sampling assembly, and the second passage extends through the second connector.

In some embodiments, the outer sidewalls of the first and second joints are provided with at least one layer of annular sealing rings.

In some embodiments, the outer profile of the seal is kidney-shaped, oval-shaped, or rectangular.

In a second aspect, embodiments of the present application provide a sampling device comprising a sampling assembly, a sample container, and a sealing plug as described above, the sealing plug being mountable between the sampling assembly and the sample container. The sealing plug involved in the sampling device has the same technical effects as those provided in the foregoing embodiment, and will not be described in detail here.

In some embodiments, the sampling assembly includes a valve body and a valve spool. The valve body is provided with a negative pressure joint for connecting negative pressure equipment, and a valve cavity communicated with the negative pressure joint is formed in the valve body. The valve spool may be mounted within the valve cavity. The valve cavity is provided with a single-side opening, and the valve core can be inserted into the valve cavity along the single-side opening.

In some embodiments, the sampling assembly is provided with a sampling outlet and a sampling inlet, and a limiting step is arranged in the sampling outlet and the sampling inlet for limiting the connection position of the connection part.

Compared with the prior art, the application has the following beneficial effects:

the sealing plug that this application provided can pass through connecting portion and connect on the sampling subassembly, and after sample container and sampling subassembly assembly were accomplished, the sealing plug can stretch into in the sample container and sealed sample container. Meanwhile, the pathological effusion can flow into the sample container through the sampling channel penetrating through the connecting part and the sealing part. In this way, the sealing plug not only guides the collection of pathological liquid product, but also seals the sample container.

Drawings

FIG. 1 is a schematic cross-sectional view of a prior art sample container connected to a sampling assembly;

FIG. 2 is an exploded view of the sampling device of the present application;

FIG. 3 is a schematic perspective view of the sample container of FIG. 2;

FIG. 4 is a schematic perspective view of the sampling assembly of FIG. 2;

FIG. 5 is an exploded view of the sampling assembly of FIG. 4;

fig. 6 is a schematic perspective view of the sealing plug of fig. 2 from one perspective;

fig. 7 is a schematic perspective view of the sealing plug of fig. 2 from another perspective;

FIG. 8 is a schematic cross-sectional view of the sampling device of FIG. 2.

Reference numerals:

100-sampling device; 10-sealing plug; 11-a connection; 111-first linker; 112-a second linker; 12-a seal; 121-sealing end faces; 13-sampling channels; 131-first channel; 132-a second channel; 20-sample container; 21-a sampling vessel; 22-sampling cap; 23-sampling port; 30-a sampling assembly; 31-plug; 311-sampling outlet; 312-sampling inlet; 32-a negative pressure joint; 33-valve cavity; 34-valve core; 35-limit steps.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.

Hereinafter, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.

Furthermore, in this application, the terms "upper," "lower," "horizontal," and "vertical" are defined relative to the orientation in which the components in the figures are schematically disposed, and it should be understood that these directional terms are relative concepts, which are used for descriptive and clarity relative thereto, and which may be varied accordingly with respect to the orientation in which the components in the figures are disposed.

In the present application, unless explicitly specified and limited otherwise, the term "coupled" is to be construed broadly, and for example, "coupled" may be either fixedly coupled, detachably coupled, or integrally formed; can be directly connected or indirectly connected through an intermediate medium.

In the prior art, as shown in fig. 1, a flow path extension device is provided on a sampling assembly, and the top and bottom of the flow path extension device have grooved channels. When the flow path extension device is assembled to the sampling assembly, a top exhaust channel and a bottom sampling channel can be formed with the sampling assembly. When the sample container is connected with the sampling assembly, air in the sample container can be discharged through the exhaust channel to generate negative pressure, and pathological effusion can flow into the sample container through the sampling channel to be collected under the action of the negative pressure.

In order to maintain the vent and sampling channels clear at all times, the end face of the flow path extension device must be spaced from the sampling assembly. In this way, a gap exists between the flow path extending device and the sampling assembly, so that negative pressure is easy to leak from the gap between the flow path extending device and the sampling assembly, and the technical problems of high negative pressure energy consumption and reduced suction efficiency are caused.

In view of this, the present application provides a sampling device 100, as shown in fig. 2, where the sampling device 100 can be used with endoscopes such as gastroscopes, enteroscopes, cystoscopes, thoracoscopes, etc., for extracting pathological effusions from human body parts such as the chest, abdominal cavities, and pelvis. The sampling device 100 may also be used with other detection devices, such as medical devices including ventilators, ultrasonic detectors, and the like. The application is not particularly limited to the specific application scenario of the sampling device.

Specifically, as shown in fig. 2, the sampling device 100 may include a sealing plug 10, a sample container 20, and a sampling assembly 30. The sample container 20 and the sampling assembly 30 may be connected by a snap-fit, screw, or the like connection, and the sealing plug 10 may be installed between the sample container 20 and the sampling assembly 30 for sealing a gap between the sample container 20 and the sampling assembly 30. At the same time, the sealing plug 10 may also guide the collection of pathological effusions.

The sample device 100 will be described below, and as shown in fig. 3, the sample container 20 may include a sample container 21 and a sample cap 22. The sampling container 21 and the sampling cap 22 may be connected by a fastening means, a screw means, or the like, and the connection means between the sampling container 21 and the sampling cap 22 is not particularly limited in this application. A sampling port 23 is provided on the end face of the sampling cap 22 facing the sampling assembly 30.

In order to prevent relative rotation of the sample container 20 with respect to the sampling assembly 30, the sampling port 23 may be configured as a kidney-shaped port, an oval port, or a rectangular port, as shown in fig. 3. Meanwhile, in order to prevent the sampling assembly 30 from being reversely inserted up and down, the sampling port 23 may be designed at an eccentric position of the end face of the sampling cap 22. The shape and position of the sampling port 23 are not particularly limited in this application.

Correspondingly, as shown in fig. 4, a plug 31 may be disposed on the end surface of the sampling assembly 30 facing the sample container 20, the plug 31 protrudes from the end surface of the sampling assembly 30, and the shape of the plug 31 is the same as the shape of the sampling port 23. That is, the plug connector 31 may be selected from a kidney-shaped connector, an oval connector, a rectangular connector, or the like. Wherein, the plug 31 is provided therein with a sampling outlet 311 and a sampling inlet 312.

In addition, as shown in fig. 5, the sampling assembly 30 is further provided with a valve cavity 33, and the sampling outlet 311 and the sampling inlet 312 are both communicated with the valve cavity 33. A rotatable valve core 34 is inserted into the valve cavity 33, and the sampling assembly 30 can control the flowing state of pathological effusion in the sampling assembly 30 through the valve core 34.

It should be noted that, as shown in fig. 4 and 5, the sampling assembly 30 is further provided with an integrally formed negative pressure connector 32, and the negative pressure connector 32 is communicated with the valve cavity 33 and can be used for connecting a vacuum pump to suck pathological effusion. Wherein the valve chamber 33 may be provided in a one-sided opening structure such that the valve spool 34 may be inserted into the valve chamber 33 along the one-sided opening. Thus, the entire valve chamber 33 can be sealed by only sealing the opening of the valve chamber 33.

For example, as shown in FIG. 5, a sealing ring may be provided on top of the valve core 34. When the valve element 34 is inserted into the valve chamber 33, the seal ring can seal the opening portion of the valve chamber 33. Because the negative pressure joint 32 and the sampling assembly 30 are integrally formed, the valve cavity 33 is also in a sealed state at the position of the negative pressure joint 32. Therefore, the entire valve chamber 33 is sealed, and a sealing structure is not required to be separately arranged at the position of the negative pressure joint 32.

In some embodiments, as shown in fig. 6, to seal the gap between the sample container 20 and the sampling assembly 30, the present embodiments also provide a sealing plug 10. The sealing plug 10 may include a connecting portion 11 and a sealing portion 12, and the connecting portion 11 and the sealing portion 12 may be integrally formed or may be connected by gluing or screwing. The connection portion 11 is used to connect the sampling assembly 30, and the sealing portion 12 is used to seal the sample container 20.

Specifically, as shown in fig. 6 and 7, the connection part 11 may include a first joint 111 and a second joint 112. A sealing end surface 121 may be provided on one side of the sealing portion 12, and the first joint 111 and the second joint 112 are connected to one side of the sealing end surface 121. The sealing plug 10 is further provided with a sampling channel 13, and the sampling channel 13 may include a first channel 131 and a second channel 132. Wherein the first channel 131 penetrates the first joint 111 and the sealing portion 12, and the second channel 132 penetrates the second joint 112 and the sealing portion 12.

For example, as shown in fig. 6, the area of the sealing end surface 121 may be larger than the projected areas of the first joint 111 and the second joint 112 on the sealing end surface 121. In this way, when the sealing plug 10 is connected to the sampling assembly 30, the first connector 111 is inserted into the sampling outlet 311, the second connector 112 is inserted into the sampling inlet 312, and the sealing end surface 121 can also abut against the end of the plug 31, so as to play a role in sealing the plug 31.

In addition, as shown in fig. 6 and 7, in order to improve the sealing property between the first joint 111 and the sampling outlet 311 and the sealing property between the second joint 112 and the sampling inlet 312, a plurality of annular sealing rings may be provided on the outer side walls of the first joint 111 and the second joint 112. The multi-layer annular seal ring is capable of forming a multi-layer seal protection with the sampling assembly 30 when the first connector 111 is inserted into the sampling outlet 311 and the second connector 112 is inserted into the sampling inlet 312.

It should be noted that, as shown in fig. 7, the opening of the first channel 131 on the sealing portion 12 may be disposed on the axis of the first channel 131, that is, the first channel 131 is a linear channel. The opening of the second channel 132 on the sealing portion 12 may be arranged towards the bottom of the sample container 20, i.e. the second channel 132 is a meander-shaped channel.

In sampling, as shown in fig. 8, first, the first connector 111 is inserted into the sampling outlet 311, the second connector 112 is inserted into the sampling inlet 312, and then the sample container 20 is connected to the sampling assembly 30. At this time, two ends of the first channel 131 are respectively connected to the sampling outlet 311 and the sampling port 23 of the sampling cap 22, and two ends of the second channel 132 are respectively connected to the sampling inlet 312 and the sampling port 23 of the sampling cap 22.

Thus, the openings of the first channel 131 and the second channel 132 in the sealing portion 12 are both located in the sample container 20. At this time, air in the sample container 20 is discharged through the first passage 131, and a negative pressure is formed in the sample container 20. The pathological liquid is flowed from the second channel 132 into the sample container 20 under negative pressure for collection.

Wherein the opening in the sealing portion 12 due to the second channel 132 is directed towards the bottom of the sample container 20. When the air in the sample container 20 is discharged, the pathological effusion falls into the sample container 20 under the action of gravity, so that the problem that the pathological effusion is directly sucked by the negative pressure of the first channel 131 is avoided.

During the whole sampling process, as shown in fig. 8, the first channel 131 plays a role of exhausting, and the second channel 132 plays a role of draining the pathological effusion flow direction. At the same time, the sealing portion 12 of the sealing plug 10 provided in the present application can also protrude into the sampling port 23. That is, the sampling port 23 can be sealed by a portion of the sealing portion 12 that is not open, thereby preventing leakage of negative pressure from the gap between the sample container 20 and the sampling assembly 30.

For example, as shown in fig. 7, the sampling port 23 may be sealed with the sealing portion 12 between the connecting portions 11 and the opening of the second passage 132 on the sealing portion 12. Thus, the further the second channel 132 opens onto the sealing portion 12 away from the connecting portion 11, the longer the sealing portion 12 is for sealing the sampling port 23. The thicker the sampling port 23, the larger the sealing area between the sealing portion 12 and the sampling port 23.

It will be appreciated that by adjusting the length of the spigot 31 and the plug 10, the seal 12 can also be fully extended into the sampling port 23. In order to limit the connection position of the connection portion 11 in the sealing plug 10, a limit step 35 may be further provided in the sampling outlet 311 and the sampling inlet 312 as shown in fig. 8.

Meanwhile, when the first connector 111 is inserted into the sampling outlet 311 and the second connector 112 is inserted into the sampling inlet 312, the positioning step 35 may enable the first connector 111 to be flush with the inner sidewall of the sampling outlet 311 and enable the second connector 112 to be flush with the inner sidewall of the sampling inlet 312. In this way, the arrangement of the sealing plug 10 does not affect the flow of pathological liquid product in the sampling channel.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A sealing plug mountable between a sampling assembly (30) and a sample container (20) and communicating the sampling assembly (30) and the sample container (20), the sealing plug (10) comprising:

a connection part (11) for connecting the sampling assembly (30); the method comprises the steps of,

a sealing part (12) connected to the connecting part (11) for sealing the sample container (20);

the sealing plug (10) is provided with a sampling channel (13) penetrating through the connecting part (11) and the sealing part (12), and at least part of the sealing part (12) can extend into the sample container (20) and seal the sample container (20).

2. A sealing plug according to claim 1, characterized in that the sealing portion (12) is provided with a sealing end surface (121) on the side close to the connecting portion (11);

the area of the sealing end face (121) is larger than the projection area of the connecting part (11) on the sealing end face (121).

3. A sealing plug according to claim 2, characterized in that the sampling channel (13) comprises:

a first channel (131) for communicating a sampling outlet (311) of the sampling assembly (30) with a sampling port (23) of the sample container (20); the method comprises the steps of,

a second channel (132) for communicating a sampling inlet (312) of the sampling assembly (30) with a sampling port (23) of the sample container (20);

wherein, first passageway (131) and second passageway (132) all run through sealing portion (12) and extend to connecting portion (11), first passageway (131) and second passageway (132) are in opening on sealing portion (12) all towards in sample container (20).

4. A sealing plug according to claim 3, characterized in that the opening of the first passage (131) on the sealing part (12) is located on the axis of the first passage (131);

the opening of the second channel (132) on the sealing portion (12) is directed towards the bottom of the sample container (20).

5. A sealing plug according to claim 3, characterized in that the connection (11) comprises:

-a first connector (111) connectable to a sampling outlet (311) of a sampling assembly (30), said first passage (131) extending through said first connector (111); the method comprises the steps of,

a second connector (112) connectable to a sampling inlet (312) of the sampling assembly (30), the second passage (132) extending through the second connector (112).

6. A sealing plug according to claim 5, characterized in that the outer side walls of the first joint (111) and the second joint (112) are provided with at least one layer of annular sealing rings.

7. A sealing plug according to any of claims 1-6, characterized in that the outer contour of the sealing portion (12) is kidney-shaped, oval or rectangular.

8. A sampling device, comprising:

a sampling assembly (30);

a sample container (20); the method comprises the steps of,

the sealing plug (10) of any one of claims 1 to 7 mounted between the sampling assembly (30) and the sample container (20).

9. The sampling device according to claim 8, wherein the sampling assembly (30) comprises:

the valve body is provided with a negative pressure joint (32) for connecting negative pressure equipment, and a valve cavity (33) communicated with the negative pressure joint (32) is formed in the valve body; the method comprises the steps of,

a spool (34) mountable within the valve chamber (33);

wherein the valve chamber (33) has a single-sided opening along which the valve spool (34) can be inserted into the valve chamber (33).

10. The sampling device according to claim 8, wherein the sampling assembly (30) is provided with a sampling outlet (311) and a sampling inlet (312);

and a limiting step (35) is arranged in the sampling outlet (311) and the sampling inlet (312) and is used for limiting the connection position of the connecting part (11).