CN215503157U

CN215503157U - Sampling capsule and sampling capsule system

Info

Publication number: CN215503157U
Application number: CN202122257444.1U
Authority: CN
Inventors: 杨戴天杙
Original assignee: Ankon Technologies Co Ltd
Current assignee: Ankon Technologies Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-01-14
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses a sampling capsule and a sampling capsule system. The sampling capsule comprises a shell, a sampling part and a sampling trigger part, wherein the shell is provided with a first sampling port and a second sampling port, and a storage cavity is arranged in the shell; the sampling component is arranged in the storage cavity; the sampling capsule has a passive sampling state after the sampling trigger part is triggered; when the sampling capsule is in a passive sampling state, the first sampling port and the second sampling port are communicated with the outside and the inside of the storage cavity. The sampling capsule system comprises a control unit and the sampling capsule, and the sampling trigger component is in communication connection with the control unit. After the sampling trigger part is triggered, the sampling capsule is in a passive sampling state, at the moment, the first sampling port and the second sampling port are communicated, liquid in the alimentary canal circulates in the storage cavity, then is collected by the sampling part in the storage cavity, air cannot be sucked in during sampling, the sampling amount is large, the sampling success rate is high, sampling can be triggered actively, and the acquisition place is accurate.

Description

Sampling capsule and sampling capsule system

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a sampling capsule and a sampling capsule system.

Background

Digestive tract sampling capsules for collecting digestive tract liquid samples are gaining more and more attention due to their advantages of safety, painlessness, and the like. The sampling capsule has an imaging unit, a data processing unit, a wireless transmission unit, and the like, is swallowed by a subject from the mouth, can photograph organs such as the stomach and the intestine while passing through the digestive tract system, and transmits photographing information to an external receiving device by wireless transmission, and the information is received by the external receiving device and then displayed on a display device. The digestive tract sampling capsule can also collect liquid samples of organs such as stomach or intestine and the like for subsequent detection, thereby diagnosing gastrointestinal tract diseases of a detected person.

The sampling direction of a sampling capsule is generally divided into two types, active and passive. Active sampling uses vacuum, pump, biopsy forceps, etc. to collect the contents of the digestive tract. The active sampling mode has the advantages that the sampling time is actively controllable, and the defect that the sampling fails due to the fact that air is easily sucked is overcome. Passive sampling is typically accomplished by using enteric coatings or the like that disintegrate in the environment of a particular digestive tract biochemical, thereby triggering the sampling and absorbing the fluid flowing within the sampling capsule with a water-absorbing collection device. The passive sampling mode has the advantages that air cannot be sucked, so that the sampling amount is large, the success rate is high, and the defects that the acquisition triggering cannot be controlled, so that the acquisition place is not accurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sampling capsule and a sampling capsule system which are not easy to inhale air and can be actively triggered for sampling.

To achieve one of the above objects, an embodiment of the present invention provides a sampling capsule, including:

the sampling device comprises a shell, a sampling device and a sampling device, wherein a first sampling port and a second sampling port are arranged on the shell, and a storage cavity is arranged in the shell;

the sampling component is arranged in the storage cavity and is used for collecting liquid entering the storage cavity;

a sampling trigger component, the sampling capsule having a passive sampling state after the sampling trigger component is triggered; when the sampling capsule is in when passive sampling state, first sample connection and second sample connection are external and storing intracavity portion, just storing intracavity portion is in be formed with the passageway that supplies the liquid circulation between first sample connection and the second sample connection.

As a further improvement of an embodiment of the present invention, the sampling capsule further has an active sampling state prior to the passive sampling state after the sampling trigger member is triggered;

when the sampling capsule is in when the initiative sampling state, first sample connection external with storing intracavity portion, the second sample connection external with storing intracavity portion.

As a further improvement of an embodiment of the present invention, the sampling trigger part includes a first unit that opens or closes the first sampling port, and a second unit that opens or closes the second sampling port.

As a further improvement of an embodiment of the present invention, the first unit is a valve, and the second unit is a movable plug;

first unit is closed during the first sample connection, the storing intracavity is the negative pressure state than the external world, second sample connection storing chamber and then make the second unit is adsorbed and is fixed in second sample connection department.

As a further improvement of an embodiment of the present invention, a bottom end of the housing is provided with a groove for positioning the second unit, the second sampling port is disposed on a top wall of the groove to communicate the groove with the storage chamber, a width of the second unit increases in a direction away from the second sampling port, and a shape of the groove is adapted to the second unit.

As a further improvement of an embodiment of the present invention, a through hole is provided at the bottom of the housing, and a fixing plug is mounted in the through hole of the housing, and the second unit is disposed around the fixing plug.

As a further improvement of an embodiment of the present invention, a partition plate located below the first sampling port is disposed inside the housing, a bottom surface of the partition plate and an inner wall of the housing define the storage cavity, and a longitudinally extending sample inlet is disposed on the partition plate;

the shell is internally provided with a sample injection part which is positioned above the clapboard and is communicated with the first sampling port and the sample injection port, and the first unit is installed on the sample injection part.

As a further improvement of an embodiment of the present invention, a plurality of first sampling ports are disposed on an outer periphery of the housing, and the sample injection component includes a plurality of first connection channels corresponding to the first sampling ports one to one, an adapter communicating one end of the first connection channels away from the first sampling ports, and a second connection channel communicating the adapter and the sample injection ports.

As a further improvement of an embodiment of the present invention, the sampling member is made of a liquid absorbing material, the sampling member is fixed below the partition plate, and the sampling member has a through hole corresponding to the sample inlet.

As a further improvement of an embodiment of the present invention, a first water-stop unit is disposed on a side of the sampling component close to the sample inlet, and a second water-stop unit is disposed on a side close to the second sampling port;

under initial condition, the sampling part is through the perforation intercommunication the introduction port with the second sampling port, works as after the sampling part imbibition inflation is to a certain degree, the perforation is closed, first water proof unit shutoff introduction port, the shutoff of second water proof unit the second sampling port.

As a further improvement of an embodiment of the present invention, the first water-stop unit and the second water-stop unit are disposed around the perforation.

In order to achieve one of the above objectives of the present invention, an embodiment of the present invention provides a sampling capsule system, which includes a control unit and the sampling capsule described in the above embodiment, the sampling capsule further includes an optical module disposed in the housing, and both the optical module and the sampling trigger component are in communication connection with the control unit.

Compared with the prior art, the utility model has the beneficial effects that: after the sampling trigger part is triggered, the sampling capsule is in the passive sampling state, and first sample connection and second sample connection this moment, the liquid in the alimentary canal circulates in the storing cavity, then is gathered by the sampling part of storing cavity, can not inhale the air in the sampling process, therefore the sampling volume is big and the sampling success rate is high to the sampling can initiatively trigger, therefore the collection place is accurate.

Drawings

FIG. 1 is a schematic structural view of a sampling capsule according to an embodiment of the present invention;

FIG. 2 is a schematic bottom view of a sampling capsule with a hidden second unit according to an embodiment of the present invention;

FIG. 3 is a schematic bottom view of a sampling capsule according to an embodiment of the present invention;

FIG. 4 is an enlarged partial view of a sampling capsule in accordance with a preferred embodiment of the present invention;

fig. 5 is an exploded structural view of a sampling member and a second water-stop unit according to an embodiment of the present invention;

FIG. 6 is a schematic view of the sampling capsule of one embodiment of the present invention with the second unit detached and the sampling member expanded;

10, a shell; 11. a first sampling port; 12. a second sampling port; 13. a storage chamber; 14. a partition plate; 141. a sample inlet; 15. a groove; 20. a sampling component; 21. perforating; 22. a first water isolation unit; 221. a first portion; 222. a second portion; 23. a second water-resisting unit; 30. a first unit; 40. a second unit; 50. a sample introduction part; 51. a first connecting channel; 52. an adapter; 53. a second connecting channel; 60. a fixed plug; 70. an optical module; 80. an electrical module.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

In the various drawings of the present invention, certain dimensions of structures or portions are exaggerated relative to other structures or portions for ease of illustration and, therefore, are used only to illustrate the basic structure of the subject matter of the present invention.

The utility model provides a sampling capsule which is used for collecting a liquid sample of the digestive tract.

As shown in fig. 1, the sampling capsule comprises a housing 10, a sampling member 20 and a sampling trigger member.

The housing 10 is biocompatible and will not be corroded by digestive fluids. The shell 10 is provided with a first sampling port 11 and a second sampling port 12, and a storage cavity 13 is arranged inside the shell 10.

A sampling member 20 is disposed within the storage chamber 13 for collecting liquid that enters the storage chamber 13.

The sampling capsule has a passive sampling state after the sampling trigger part is triggered; when the sampling capsule is in the passive sampling state, first sampling port 11 and second sampling port 12 communicate the external world and the storing chamber 13 is inside, and storing chamber 13 is inside to be formed with the passageway that supplies the liquid circulation between first sampling port 11 and second sampling port 12. At this time, the first sampling port 11 and the second sampling port 12 are communicated, the liquid in the alimentary canal can circulate in the storage cavity 13, the liquid flows from the first sampling port 11 to the second sampling port 12 or from the second sampling port 12 to the first sampling port 11, and then the liquid is collected by the sampling component 20 in the storage cavity 13. The difficult air that inhales among the sampling process, perhaps even the air gets into storing chamber 13 and also can be taken out by the liquid that circulates, therefore sampling volume is big and the sampling success rate is high to the sampling can initiatively trigger, therefore gathers the place accuracy.

Specifically, the sampling trigger part includes a first unit 30 and a second unit 40. The first unit 30 opens or closes the first sampling port 11, thereby allowing the outside and the storage chamber 13 to communicate with or be blocked at the first sampling port 11. The second unit 40 opens or closes the second sampling port 12, thereby communicating or blocking the outside with the storage chamber 13 at the second sampling port 12.

The first unit 30 and the second unit 40 may each have the function of being actively triggered to open the sampling port, e.g. both are valves. Alternatively, one of the first unit 30 and the second unit 40 has a function of actively triggering to open the sampling port, and the other automatically opens the sampling port after a certain condition is satisfied.

As shown in fig. 1, 2 and 3, in a preferred embodiment of the present invention, the first unit 30 is a valve and the second unit 40 is a movable plug. Before the sampling capsule is used, the interior of the storage cavity 13 is vacuumized, so that when the first sampling port 11 is closed by the first unit 30, the interior of the storage cavity 13 is in a negative pressure state compared with the outside. The second sampling port 12 is communicated with the storage cavity 13, so that the second unit 40 is adsorbed and fixed at the second sampling port 12 under the action of negative pressure.

After the first unit 30 is triggered, the first sampling port 11 is opened, the negative pressure inside the storage cavity 13 disappears, and the adsorption effect on the second unit 40 disappears, so that the second unit 40 can be separated from the second sampling port 12, thereby opening the second sampling port 12. The first unit 30 has the function of opening the first sampling port 11 after active triggering, and the second unit 40 automatically opens the second sampling port 12 after the first unit 30 is opened for a period of time.

The following description will be made in detail with reference to fig. 1, 2 and 3 for an embodiment of the sampling capsule in which the first unit 30 is preferably a valve and the second unit 40 is preferably a movable plug.

The inside baffle 14 that is located first sample connection 11 below that is provided with of shell 10, baffle 14 divide into upper and lower two parts with the shell 10 inside, and the upper portion is the cavity that is used for acceping electrical component and optical component, and the lower part is the storing chamber 13 that is used for acceping the sample of collection.

The bottom surface of the partition 14 and the inner wall of the housing 10 define a storage chamber 13. The electrical and optical components of the sampling capsule are positioned above the partition 14 such that the electrical and optical components are separated from the reservoir 13.

The partition 14 is provided with a sample inlet 141 extending longitudinally, and the housing 10 is provided with a sample inlet part 50 located above the partition 14 and communicating the first sampling port 11 with the sample inlet 141. The first unit 30 is mounted on the sample introduction part 50. The first sampling port 11, the sample introduction part 50 and the first unit 30 are disposed above the partition 14, so that the first unit 30 is separated from the storage chamber 13.

Further, a plurality of first sampling ports 11 are disposed on the periphery of the housing 10, and the sample injection part 50 includes a plurality of first connection channels 51 corresponding to the first sampling ports 11 one to one, an adapter 52 communicating the first connection channels 51 with one end far away from the first sampling ports 11, and a second connection channel 53 communicating the adapter 52 with the sample injection port 141. Through the technical scheme, the number of the first sampling ports 11 is increased, so that the sampling efficiency is improved.

Specifically, the first sampling ports 11 are circumferentially distributed around the shell 10, if the sampling capsule is only partially soaked in the liquid of the digestive tract, the sampling can be performed as long as part of the first sampling ports 11 are soaked in the liquid of the digestive tract, and the success rate of sampling is improved.

Because the amount of liquid flowing through the second connecting channel 53 is larger than that of the first connecting channel 51, the diameter of the second connecting channel 53 is larger than that of the first connecting channel 51, and the second connecting channel 53 is prevented from being blocked by viscous digestive tract liquid.

The number of the first units 30 is one, and the first units 30 are installed on the adaptor 52 or the second connecting channel 53, so that all the first sampling ports 11 can be controlled to be communicated or closed from the outside and the inside of the storage cavity 13 through one first unit 30. The first unit 30 is a micro valve which closes the second connection channel 53 in an initial state, thereby not communicating the first sampling port 11 with the storage chamber 13. The medical staff actively opens the second connection channel 53 by activating the first unit 30, thereby putting the first sampling port 11 in communication with the storage chamber 13.

In particular, the first unit 30 is a pinch valve comprising a clamping ring for clamping the second connection channel 53 and a heating element for fusing the clamping ring. The medical staff opens the second connecting channel 53 by controlling the heating element to work and fusing the clamping ring.

The second sampling port 12 is disposed at the bottom of the housing 10, i.e., the first sampling port 11 and the second sampling port 12 are located at opposite sides of the storage chamber 13. Therefore, the flowing distance of the liquid in the cavity of the storage cavity 13 is larger, and the sampling part 20 in the storage cavity 13 is convenient to collect the liquid sample.

The bottom of the housing 10 is provided with a through hole, and the housing 10 is mounted with a fixing plug 60 in the through hole. The function of the fixed plug 60 is to allow the needle of the syringe to penetrate before the sampling capsule enters the human body, the needle penetrating the fixed plug 60 enters the storage cavity 13, and then the medical staff draws vacuum through the syringe. The fixed stopper 60 is selected softer and have elastic material, for example rubber or latex, makes things convenient for the syringe needle to pierce like this, and simultaneously after the syringe needle is extracted, the fixed stopper 60 seals the pinhole that the syringe needle formed after extracting under the extrusion of self, avoids the gaseous worker pinhole of external world to get into storing chamber 13 and makes the vacuum in the storing chamber 13 descend.

As shown in fig. 2, the bottom end of the housing 10 is provided with a groove 15 for positioning the second unit 40, and the second sampling port 12 is provided at the top wall of the groove 15 to communicate the groove 15 with the storage chamber 13. When the second unit 40 seals the second sampling port 12, the second unit 40 is located in the groove 15, so that the second sampling port 12 is isolated from the outside, and the second sampling port 12 is closed from the outside and the inside of the storage cavity 13. After the first unit 30 opens the second connecting channel 53, the vacuum state inside the storage cavity 13 disappears, and along with the intestinal peristalsis and the capsule shaking, the second unit 40 drops from the groove 15 and breaks away from the shell 10, so that the second sampling port 12 is communicated with the outside through the groove 15, and at the moment, the second sampling port 12 is communicated with the inside of the storage cavity 13 from the outside.

The second unit 40 is made of rubber or latex and has a certain deformation, so that the second unit 40 can be in interference fit with the inner wall of the groove 15 when being adsorbed and fixed at the position of the second sampling port 12, and the second unit 40 is prevented from being easily separated from the groove 15.

In a preferred embodiment, as shown in fig. 4, the width of the second cell 40 increases in a direction away from the second sampling port 12, and the shape of the recess 15 is adapted to the second cell 40. That is, the cross-section of the second unit 40 formed on the longitudinal plane has a trapezoidal structure. Through the above scheme, when the second unit 40 is fixed at the position of the second sampling port 12 by adsorption, the second unit 40 is partially in interference fit with the groove 15 under external pressure, so that the firmness of the second unit 40 is improved, and the second unit 40 is prevented from being easily separated from the groove 15. And the at least partially trapezoidal configuration of the second unit 40 allows the second unit 40 to be more easily removed from the recess 15 when the second unit 40 is removed from the housing 10.

Further, the second unit 40 is ring-shaped and is disposed around the fixed plug 60 to improve space utilization of the bottom of the sampling capsule. The groove 15 is also annular, and the second sampling port 12 is a plurality of arc-shaped holes distributed around the fixed plug 60, so that the area of the second sampling port 12 is larger, and the sampling efficiency is improved.

Further, the bottom of the second unit 40 is adapted to the shape of the bottom of the housing 10. Specifically, the bottom of the second unit 40 is a cambered surface, and the bottom of the second unit and the bottom of the housing 10 form a streamline structure together, so that the sampling capsule can move more smoothly in the human body.

The structure and operation of the sampling unit 20 will be described in detail with reference to fig. 1, 5 and 6.

The sampling member 20 is a liquid absorbent material. When the digestive tract fluid circulates inside the storage chamber 13, the sampling part 20 absorbs the fluid, thereby completing the sampling of the digestive tract fluid.

The sampling component 20 is fixed below the partition 14, and the sampling component 20 has a through hole 21 corresponding to the sample inlet 141, so that liquid can enter the storage cavity 13 from the sample inlet 141, and the sampling component 20 is prevented from influencing the circulation of the liquid. And the liquid in the perforations 21 is absorbed by the sampling member 20 while moving, improving the collection efficiency.

The sampling member 20 may be a cylindrical structure with a perforation 21 extending longitudinally through the center of the sampling member 20. The sampling part 20 may also be composed of a plurality of columns circumferentially distributed around the central axis of the injection port 141, and the through holes 21 under this structure are provided between the columns.

In a preferred embodiment, the sampling member 20 is made of a water-absorbent resin or a water-absorbent gel, and by using the above-mentioned material, the sampling member 20 gradually swells after the sampling member 20 absorbs the liquid sample.

The sampling part 20 has a first water-stop unit 22 on the side near the sample inlet 141, and a second water-stop unit 23 on the side near the second sampling port 12. The first and second water-

stop units

22 and 23 are made of a material selected to block the passage of liquid.

In the initial state, the sampling part 20 communicates the sample inlet 141 with the second sampling port 12 through the penetration hole 21. Specifically, the perforation 21 corresponds to the sample inlet 141, and the bottom of the sampling part 20 is spaced from the second sample inlet 12, so that the liquid can flow along the sample inlet 141, the perforation 21, and the second sample inlet 12.

When the sampling component 20 absorbs liquid and expands to a certain degree, the perforation 21 is closed, the first water-stop unit 22 blocks the sample inlet 141, and the second water-stop unit 23 blocks the second sampling port 12. Through the technical scheme, after the sampling part 20 absorbs enough liquid samples, the interior of the storage cavity 13 is sealed under the action of the first water-stop unit 22 and the second water-stop unit 23, so that the effect of protecting the samples absorbed by the sampling part 20 is achieved.

Further, a first water-stop unit 22 and a second water-stop unit 23 are disposed around the perforation 21. The first water stop unit 22 has a first portion 221 between the sampling member 20 and the septum 14 and a second portion 222 located within the perforation 21. The first portion 221 may be fixedly connected to the partition 14 or may not be connected to the partition 14.

After the sampling part 20 is imbibed and expanded to a certain extent, the second parts 222 of the first water stop units 22 approach each other, thereby closing the through holes 21 and closing the communication between the sample inlet 141 and the storage cavity; alternatively, the first portions 221 of the first water-stop units 22 are close to each other to close the communication between the sample inlet 141 and the storage chamber 13, and the second portions 222 of the first water-stop units 22 are close to each other to close the top of the through hole 21.

Specifically, the perforation 21 corresponds to the position of the fixing plug 60, and after the sampling member 20 is expanded, the fixing plug 60 blocks the perforation 21, thereby closing the bottom of the perforation 21.

The sampling capsule further includes an optics module 70 disposed within the housing 10, the optics module 70 having a lens for acquiring images within the alimentary tract to facilitate a healthcare worker in determining whether the sampling capsule has reached a collection site.

The sampling capsule further comprises an electrical module 80 disposed within the housing 10, the electrical module 80 being configured to provide an energy source to the optical module 70 within the sampling capsule.

In one embodiment of the utility model, the sampling capsule further has an active sampling state prior to the passive sampling state after the sampling trigger member is triggered. The active sampling state is a state in which negative pressure is provided inside the storage cavity 13 by a pump or vacuum is pumped in advance in the storage cavity 13, so that external liquid actively enters the storage cavity 13 to be collected by the sampling part 20. When the sampling capsule is in the initiative sampling state, first sampling port 11 intercommunication is external and storing intracavity 13 is inside, and second sampling port 12 closes external and storing intracavity 13 is inside.

The sampling trigger part of the first unit 30 and the second unit 40, both of which are actively triggered, is suitable for the above-mentioned sampling capsule having an active sampling state and a passive sampling state, and the sampling trigger part of the first unit 30 and the second unit 40, one of which has the function of actively triggering to open the sampling port and the other of which automatically opens the sampling port after certain conditions are met, is also suitable for the above-mentioned sampling capsule having an active sampling state and a passive sampling state. Obviously, the sampling capsule in which the first unit 30 is a valve and the second unit 40 is a movable plug in the aforementioned embodiment may also have an active sampling state and a passive sampling state.

In summary, a preferred embodiment of the present invention provides a sampling capsule having a valve as the first unit 30 and a movable plug as the second unit 40, and having two sampling states, i.e. active and passive, and the working process of the sampling capsule is as follows:

(1) before use, the first unit 30 closes the second connecting channel 53, the second unit 40 is assembled in the groove 15, then the fixing plug 60 is punctured by a syringe needle, vacuum is drawn, and the second unit 40 is adsorbed and blocked at the second sampling port 12 by negative pressure;

(2) after the user swallows the sampling capsule, the digestive tract is observed through the optical component of the sampling capsule, and after the sampling capsule reaches the interested digestive tract interval, a sampling instruction is sent wirelessly. After receiving the instruction, the sampling capsule opens the first unit 30, at this time, the external gas and liquid are pushed into the collection chamber under the action of pressure, and the sampling capsule enters an active sampling state;

(3) at this moment, the pressure of the collecting bin is rapidly recovered, the collecting bin is balanced with the outside, no external force is applied to fixation between the second unit 40 and the shell 10, the second unit 40 falls off from the groove 15 along with intestinal peristalsis and capsule shaking, the second sampling port 12 is communicated with the outside, the first sampling port 11 is communicated with the second sampling port 12, liquid can naturally flow through the storage cavity 13, and the sampling capsule enters a passive sampling state.

(4) When the sampling part 20 sucks enough liquid, the liquid is rapidly expanded, the storage cavity 13 is in a sealed state through the first water-stop unit 22 and the second water-stop unit 23, and the sample cannot be polluted by other contents in the downstream digestive tract.

The preferred embodiment described above rapidly absorbs the sample first by the active sampling state. If gas is inhaled during active sampling, air will be carried out by the flowing liquid during passive sampling and gas will not stay in the storage chamber 13 during passive sampling. In conclusion, the sampling time of the utility model can be accurately controlled, gas is not easy to be inhaled in the sampling process, the sampling amount is large, and the sampling success rate is high.

The utility model also provides a sampling capsule system, which comprises a control unit and the sampling capsule in the embodiment. The optical module and the sampling trigger component are both in communication connection with the control unit. The medical staff can acquire the image acquired by the optical module 70 through the control unit to judge whether the sampling capsule arrives at the acquisition place. When the sampling capsule arrives at the collection site, the medical personnel triggers the first unit 30 via the control unit, thereby performing the sampling.

The first unit 30 and the optical module 70 may have a built-in communication unit, which is in communication connection with the control unit, respectively. Alternatively, electrical module 80 has a communication unit communicatively coupled to first unit 30 and optical module 70, and the control unit is communicatively coupled to first unit 30 and optical module 70 via the communication unit on electrical module 80.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A sampling capsule, comprising:

2. The sampling capsule of claim 1, wherein the sampling capsule further has an active sampling state prior to the passive sampling state after the sampling trigger member is triggered;

3. The sampling capsule of claim 1 or 2, wherein the sampling trigger member comprises a first unit that opens or closes the first sampling port, a second unit that opens or closes the second sampling port.

4. A sampling capsule according to claim 3, wherein the first unit is a valve and the second unit is a movable plug;

5. The sampling capsule of claim 4, wherein the bottom end of the housing is provided with a recess for positioning the second unit, the second sampling port is provided at a top wall of the recess such that the recess communicates with the storage cavity, the width of the second unit increases in a direction away from the second sampling port, and the recess is shaped to fit the second unit.

6. A sampling capsule according to claim 4, wherein the bottom of the housing is provided with a through hole and the housing has a fixed plug mounted in the through hole, the second unit being arranged around the fixed plug.

7. The sampling capsule of claim 4, wherein a partition is disposed inside the housing below the first sampling port, a bottom surface of the partition and an inner wall of the housing define the storage chamber, and a longitudinally extending sample inlet is disposed on the partition;

8. The sampling capsule of claim 7, wherein a plurality of first sampling ports are disposed on the outer periphery of the housing, and the sample injection component comprises a plurality of first connection channels corresponding to the first sampling ports one to one, an adapter communicating with one end of the first connection channels away from the first sampling ports, and a second connection channel communicating with the adapter and the sample injection ports.

9. The sampling capsule of claim 8, wherein the sampling member is a liquid absorbent material, the sampling member is secured below the barrier, and the sampling member has a perforation corresponding to the sample inlet.

10. The sampling capsule of claim 9, wherein the sampling member has a first water stop unit on a side adjacent to the sample inlet and a second water stop unit on a side adjacent to the second sampling port;

11. The sampling capsule of claim 10, wherein the first and second water-stop units are disposed around the perforation.

12. A sampling capsule system comprising a control unit and a sampling capsule according to any of claims 1-11, the sampling capsule further comprising an optical module disposed within the housing, the optical module and sampling trigger member each communicatively coupled to the control unit.