CN109540610B - Sample collection device - Google Patents
Sample collection device Download PDFInfo
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- CN109540610B CN109540610B CN201811523126.1A CN201811523126A CN109540610B CN 109540610 B CN109540610 B CN 109540610B CN 201811523126 A CN201811523126 A CN 201811523126A CN 109540610 B CN109540610 B CN 109540610B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention relates to the technical field of medical equipment, and provides a sample collection device, which comprises a shell and an absorption piece for absorbing gas, wherein the shell is provided with an air inlet, an air outlet, a first channel, a second channel and a detection cavity; the first passageway and the air inlet intercommunication, second passageway and gas outlet intercommunication, one side of detecting the chamber is provided with the first passageway of intercommunication first passageway and detecting the chamber, the opposite side of detecting the chamber is provided with the second passageway of intercommunication second passageway and detecting the chamber, through the direction effect of first passageway and first passageway, the gas of being exhaled by the person of testee is led into the detecting the intracavity from detecting chamber one side, then is discharged through second passageway and second passageway from detecting the chamber opposite side, help gas and the absorbing member in the detecting the chamber fully contact reaction, thereby improve sample collection efficiency.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a sample collection device.
Background
In the medical field, the method of adopting the expiration test is used for diagnosing certain diseases, has the characteristics of rapidness, safety and painless, and is beneficial to early diagnosis and treatment of diseases. For example, the detection of helicobacter pylori, the isotope labeled carbon is orally taken to the testee 13 C、 14 C) Urea medicine containing isotope labeled CO generated after decomposition of medicine into human body 2 Exhaled with the respiration of the subject, collecting a sample of exhaled gas, detecting the isotopically labelled CO 2 And correspondingly obtaining whether the tested person is infected with helicobacter pylori and the infection degree. In the prior art, when collecting the gas exhaled by the testee, the sample carrier is simply placed on the carrier, and then the sample carrier is exhaled to make the carbon dioxide in the gas absorbed by the sample carrier become the sample to be tested, and the sample is collectedThe efficiency is low. Therefore, a new technical solution is needed to solve the technical problem of low sample collection efficiency.
Disclosure of Invention
The invention aims to provide a sample collection device capable of guiding the entering gas, and the gas exhaled by a tested person can be guided into a cavity provided with an absorbing piece, so that the sample collection efficiency is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a sample collection device, which comprises a shell and an absorption piece for absorbing gas, wherein the shell is provided with an air inlet, an air outlet, a first channel, a second channel and a detection cavity; the air inlet, the first channel, the detection cavity, the second channel and the air outlet are sequentially communicated.
As an improvement of the technical scheme, one side of the detection cavity is provided with a plurality of first passages which are communicated with the first passage and the detection cavity, and the other side of the detection cavity is provided with a plurality of second passages which are communicated with the second passage and the detection cavity.
As a further improvement of the above technical solution, the detection cavity is of a circular cavity structure, and each first passage is arranged at intervals along a circumferential direction of one side of the detection cavity, and each second passage is arranged at intervals along a circumferential direction of the other side of the detection cavity.
As a further improvement of the above technical solution, the first passage includes a first ventilation slot and a first through hole, the first through hole is disposed at one end of the first ventilation slot, the first through hole communicates the first ventilation slot with the first channel, and the other end of the first ventilation slot communicates with the detection cavity; the second passageway includes second ventilation groove and second through-hole, the second through-hole is located the one end of second ventilation groove, the second through-hole will the second ventilation groove with the second passageway intercommunication, the other end of second ventilation groove with detect the chamber intercommunication.
As a further improvement of the above technical solution, the first ventilation groove and the second ventilation groove are both provided on an outer side surface of the housing.
As a further improvement of the technical scheme, the shielding layer covers the detection window, the outer hole end of the first through hole, the outer hole end of the second through hole, the notch of the first ventilation groove and the notch of the second ventilation groove.
As a further improvement of the technical scheme, the outer side face of the shell is provided with a concave structure at the periphery of the detection window, and the first ventilation groove and the second ventilation groove are formed in the bottom face of the concave structure.
As a further improvement of the above technical solution, the recess structure is recessed from the surface of the housing and formed with a recess hole penetrating the detection window, and the shielding layer is attached to the recess hole.
As a further improvement of the above technical solution, the housing comprises a first assembly and a second assembly, which are assembled to form the first channel, the second channel and the detection chamber.
As a further improvement of the above technical solution, the detection window is disposed on the first assembly, a convex wall is disposed on an inner side surface of the first assembly around the detection window, a ring groove is disposed on an inner side surface of the second assembly, the convex wall is disposed in the ring groove after the first assembly and the second assembly are assembled, and an edge of the absorbing member is pressed between the convex wall and the ring groove.
As a further improvement of the technical scheme, the convex wall is an annular convex wall, a limiting table is arranged between the annular convex wall and the edge of the detection window, an installation table is formed in an area surrounded by the annular groove, the absorbing piece is arranged on the installation table, the installation table is embedded in the annular convex wall, and the absorbing piece is clamped between the installation table and the limiting table.
As a further improvement of the above technical solution, the first assembly is provided with a first cavity and a second cavity, the second assembly is provided with a third cavity and a fourth cavity, and the positions of the first cavity and the third cavity correspond to each other and form the first channel; the second concave cavity and the fourth concave cavity are mutually corresponding in position and form the second channel.
As a further improvement of the above technical solution, the absorbent member comprises an outwardly convex arcuate absorbent surface.
As a further improvement of the technical scheme, an indication sheet is fixedly arranged in the first channel, and an observation port is formed in the position, corresponding to the indication sheet, of the shell.
As a further improvement of the above technical solution, the first passage includes an expansion section and a contraction section, the expansion section is located between the air inlet and the contraction section, a width of the expansion section gradually expands from the air inlet toward the contraction section, the contraction section is located between the expansion section and the detection chamber, and a width of the contraction section gradually contracts from an end of the expansion section toward the detection chamber.
As a further improvement of the above technical solution, the second channel includes an expansion section, and the width of the expansion section gradually expands from the detection cavity to the direction of the air outlet.
As a further improvement of the above technical solution, the shielding layer is a solid scintillation film or a solid scintillation sheet or a soft film or a thin sheet or a hard cover plate.
As a further improvement of the above technical solution, the solid state scintillator is a granular solid state scintillator attached to the absorber.
The beneficial effects of the invention are as follows:
the shell of the sample collection device comprises an air inlet, an air outlet, a first channel, a second channel and a detection cavity, wherein an absorbing piece is arranged in the detection cavity, the detection cavity is provided with a detection window, a shielding layer is covered on the detection window, and the air inlet, the first channel, the detection cavity, the second channel and the air outlet are sequentially communicated; therefore, through the guiding function of the first channel, the gas exhaled by the tested person can be guided into the testing cavity from one side of the testing cavity, then is exhausted from the other side of the testing cavity through the second channel, and the blocking function of the shielding layer is added, so that the gas can be fully contacted and reacted with the absorbing piece in the testing cavity, and the sample collecting efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following description will briefly explain the drawings that are required to be used in the description of the embodiments:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of one embodiment of a second assembly of the present invention;
FIG. 3 is a schematic view of an embodiment of a first assembly of the present invention;
FIG. 4 is a schematic view of the inner side of the first assembly shown in FIG. 3;
fig. 5 is a schematic side view of the first assembly of fig. 3.
Detailed Description
The conception, specific structure and technical effects of the present invention will be clearly and completely described below with reference to the embodiments and the accompanying fig. 1 to 5 to fully understand the objects, features and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The description of the orientations of the various elements of the invention in relation to the top, bottom, left, right, etc. is merely illustrative of the relative positions of the various elements of the invention in the drawings. The technical features of the invention can be interactively combined on the premise of no contradiction and conflict.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention, where the sample collection device includes a housing, and an air inlet 10, an air outlet 20, a first channel 30, a second channel 40, and a detection cavity 50 are disposed on the housing, and the sample collection device further includes an absorbing member 60 for absorbing gas, where the broken line portion shows the first channel 30, the second channel 40, and the detection cavity 50 inside the sample collection device, the absorbing member 60 is disposed in the detection cavity 50, the detection cavity 50 is provided with a detection window 51 for docking a detection instrument for detection, the detection window 51 may be covered with a shielding layer (not shown in the drawing), which may be a soft film, a sheet, or a hard cover plate, etc., and the shielding layer may separate the absorbing member 60 in the detection cavity 50 from the outside, so as to facilitate the gas sample to be detected to be sufficiently absorbed by the absorbing member. The air inlet 10, the first channel 30, the detection cavity 50, the second channel 40 and the air outlet 20 are sequentially communicated. One side of the detection chamber 50 is provided with a plurality of first passages 70 for communicating the first channels 30 with the detection chamber 50, and the other side of the detection chamber 50 is provided with a plurality of second passages 80 for communicating the second channels 40 with the detection chamber 50, so that the gas exhaled by the testee is guided into the detection chamber 50 from one side of the detection chamber 50 through the guiding action of the first passages 30 and the first passages 70, then is exhausted from the other side of the detection chamber 50 through the second passages 80 and the second passages 40, and the blocking action of the shielding layer is added to facilitate the sufficient contact reaction of the gas with the absorbing member 60 in the detection chamber 50, thereby improving the sample collecting efficiency.
In this embodiment, the detection chamber 50 has a circular chamber structure, and each first passage 70 is arranged at intervals along the circumferential direction of one side of the detection chamber 50, and each second passage 80 is arranged at intervals along the circumferential direction of the other side of the detection chamber 50. The first channel 30 comprises an expansion section and a contraction section, the expansion section being located between the air inlet 10 and the contraction section, the contraction section being located between the expansion section and the detection chamber 50; the expansion section has a diffusion effect, and the width of the expansion section gradually expands from the air inlet 10 to the direction of the contraction section, so that the expansion section can diffuse the air blown in from the air inlet 10, thereby facilitating the blowing; the width of the contraction section gradually contracts from the end of the expansion section to the direction of the detection cavity 50, so that the gas in the expansion section can be better guided into the detection cavity; the second channel 40 includes an expansion section, and the width of the expansion section gradually expands from the detection chamber 50 to the direction of the air outlet 20, so that the air in the detection chamber 50 is conveniently and uniformly diffused into the second channel 40, and the air is conveniently discharged. After the first channels 30 are filled with the gas exhaled by the testee, the gas enters the detection cavity 50 from each first channel 70 on one side of the detection cavity 50 in the circumferential direction, and then is discharged to the second channels 40 from each second channel 80 on the other side of the detection cavity 50 in the circumferential direction, so that the pressure of the gas flowing into the detection cavity 50 from each first channel 70 is basically the same, uneven distribution of the gas in the detection cavity 50 is avoided, the gas is facilitated to uniformly contact the absorbing member 60, the full contact reaction is realized, and the sample collection efficiency is further improved.
An indicator (not shown in the figure, refer to the following and fig. 3) is further arranged in the shell of the sample collection device, and an indicator is attached to the indicator, wherein the indicator can be a PH indicator, such as phenolphthalein, phenol red and the like; the position of the sample collection device corresponding to the indicator is provided with a pit 91, the pit 91 is provided with an observation port 92, the observation port 92 is covered with a transparent sealing layer for sealing the observation port 92, the indicator inside the sample collection device can be observed through the observation port 92, and the function of the indicator will be described below.
The shielding layer may be a solid-state scintillator, which may be covered on the detection window 51 by a solid-state scintillation film or a solid-state scintillation sheet, and the sample to be detected in the absorber 60 may excite the solid-state scintillator to make the solid-state scintillator emit a light signal for detection by the scintillation detector. In other embodiments of the invention, the solid state scintillator may also be provided in other forms for detection purposes, for example, a granular solid state scintillator may be attached to an absorber.
Fig. 2 is a schematic structural view of an embodiment of a second assembly B according to the present invention, fig. 3 is a schematic structural view of an embodiment of a first assembly a according to the present invention, and referring to fig. 2 and 3 in combination with fig. 1, a housing of a sample collection device according to the present invention may be a single-piece structure or may be a split-piece structure, and the embodiment provides one of solutions of the split-piece structure, where the sample collection device includes the first assembly a and the second assembly B, and the first assembly a and the second assembly B are assembled to form a first channel 30, a second channel 40 and a detection chamber 50. Wherein, the first assembly a is provided with a first concave cavity 31 and a second concave cavity 41, the second assembly B is provided with a third concave cavity 32 and a fourth concave cavity 42, and the positions of the first concave cavity 31 and the third concave cavity 32 are mutually corresponding to form a first channel 30; the second cavity 41 and the fourth cavity 42 are positioned in correspondence with each other and form the second channel 40.
The detection window 51 is arranged on the first assembly A, the inner side surface of the first assembly A is provided with a convex wall 52 around the detection window 51, the convex wall 52 can be an annular convex wall, the inner side surface of the second assembly B is provided with a ring groove 53, after the first assembly A and the second assembly B are assembled, the convex wall 52 is positioned in the ring groove 53, a space surrounded by the convex wall 52 and the ring groove 53 is used for installing an absorber, and the edge of the absorber 60 is pressed between the convex wall 52 and the ring groove 53, so that the absorber 60 is fixed in the detection cavity 50, and quick assembly and disassembly of the absorber 60 can be realized.
A limiting table 54 is arranged between the convex wall 52 and the edge of the detection window 51, an installation table 55 is formed in the area surrounded by the annular groove 53, the absorbing piece 60 is arranged on the installation table 55, after the first assembly A and the second assembly B are assembled, the installation table 55 is embedded in the annular convex wall, the inner wall of the limiting table 54 forms a limiting structure for the installation table, the installation table is prevented from shifting, the installation is limited, the edge of the absorbing piece 60 is clamped between the installation table 55 and the limiting table 54, and the shifting of the absorbing piece 60 can be prevented.
As a simple variant of the above embodiment, the positions of the above-mentioned projecting wall 52 and the annular groove 53 can be interchanged, for example, the annular groove 53 can be provided around the detection window 51 of the first assembly a, and correspondingly the projecting wall 52, the projecting wall 52 and the sliding groove 53 can be provided on the second assembly B, without changing the function, which variant is also within the scope of the invention.
In this embodiment, the absorbent member 60 may be made of cotton or non-woven fabric substrate plus an adsorbent for adsorbing carbon dioxide gas, and is used for absorbing carbon dioxide gas exhaled by the testee, and the absorbent member 60 includes an arc-shaped absorbing surface protruding outwards, so as to increase the adsorption area.
The positioning groove A1 and the positioning convex edge B1 which are matched with each other are arranged between the edge of the first assembly A and the edge of the second assembly B, and the positioning groove A1 and the positioning convex edge B1 are correspondingly installed during assembly, so that the assembly can be completed, the positioning function is realized, and the first assembly A and the second assembly B can be accurately and quickly assembled. The first concave cavity 31 and the third concave cavity 32 are provided with the positioning column 33 and the positioning hole 34 which are matched with each other, and when the assembly is carried out, the positioning column 33 and the positioning hole 34 are correspondingly installed, so that the assembly has the functions of positioning and pressure prevention.
Referring to fig. 3, an indicator 90 is further fixedly disposed in the first channel, an indicator is disposed on the indicator 90, and different colors can be presented according to the amount of carbon dioxide absorbed, so as to indicate the amount of carbon dioxide exhaled by the testee, when the gas exhaled by the testee can enable the absorber in the detection cavity to absorb the amount required for detection, the indicator 90 displays the corresponding color, and corresponding color data can be obtained through multiple tests, so that a comparison color card can be manufactured for comparison and judgment. An observation port 92 (see fig. 1) is formed in the sample collection device at a position corresponding to the indicator 90, so that the change of the indicator 90 is observed from the outside to judge whether the required carbon dioxide gas is enough, thereby prompting whether the testee needs to continuously exhale or not. The indicator sheet 90 may be collinear with the air inlet 10, the detection chamber 50 and disposed on a side relatively close to the detection chamber 50, facilitating a more accurate reaction of the indicator sheet to the amount of exhaled air required for detection.
Specifically, an installation part for installing the indicator 90 is disposed in the first concave cavity 31, the installation part is surrounded by a plurality of protruding structures 36 protruding from the first concave cavity 31, the protruding structures of this embodiment are cylindrical protruding structures and surround into a circular installation part, the circular indicator 90 is disposed in the installation part, a boss 35 is disposed in the third concave cavity 32 on the second assembly B, after the first assembly A and the second assembly B are assembled, the boss 35 abuts against the installation part, the indicator is disposed in a space surrounded by the first assembly A and the second assembly B, and gas in the first channel enters the installation part to react with the indicator through a gap between the protruding structures.
Fig. 4 is a schematic view of the inner side of the first assembly a shown in fig. 3, fig. 5 is a schematic view of the outer side of the first assembly a shown in fig. 3, and referring to fig. 4 and 5, the first passage 70 includes a first ventilation slot 71 and a first through hole 72, the second passage 80 includes a second ventilation slot 81 and a second through hole 82, each of the first through hole 72 and each of the second through holes 82 is disposed along the circumferential direction of opposite sides of the convex wall 52, the first through hole 72 is disposed at one end of the first ventilation slot 71, the first through hole 72 communicates the first channel 30 with the first ventilation slot 71, and the other end of the first ventilation slot 71 communicates with the detection chamber 50, so that gas in the first channel 30 can enter the detection chamber 50 through each of the first passages 70; the second through hole 82 is provided at one end of the second vent groove 81, the second through hole 82 communicates the second passage 40 with the second vent groove 81, and the other end of the second vent groove 81 communicates with the detection chamber 50, so that the gas in the detection chamber 50 can be discharged into the second passage 40 through each second passage 80.
In this embodiment, each of the first ventilation grooves 71 and each of the second ventilation grooves 81 are disposed on the outer side surface of the first assembly a, and the shielding layer covers the detection window 51, the outer hole end of the first through hole 72, the outer hole end of the second through hole 82, the notch of the first ventilation groove 71 and the notch of the second ventilation groove 81, so that gas can be prevented from escaping through the detection window 51, each of the through holes and the notch of each of the ventilation grooves, which is advantageous for better contact reaction of the gas with the absorbing member.
Preferably, the outer side surface of the first assembly a may be provided with a recess structure 56 at the periphery of the detection window 51, each of the first ventilation slots 71 and each of the second ventilation slots 81 may be disposed at a bottom surface of the recess structure 56, the recess structure is recessed from the surface of the first assembly a and formed with a recess opening penetrating the detection window 51, and the shielding layer may be attached to the recess opening, so that the shielding layer may also cover the detection window 51, the outer hole end of the first through hole 72, the outer hole end of the second through hole 82, the notch of the first ventilation slot 71 and the notch of the second ventilation slot 81.
It should be noted that the first passage 70, the second passage 80, the detection window 51, the recess structure 56, and the like may also be provided on the second assembly B.
The outside of the sample collection device can be provided with a bar code area for printing or pasting bar codes so that the detection equipment can scan and read the sample information.
The present invention is not limited to the above-described embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present invention, and these equivalent modifications and substitutions are intended to be included in the scope of the present invention as defined in the appended claims.
Claims (12)
1. A sample collection device, characterized in that: the gas-absorbing device comprises a shell and an absorbing piece for absorbing gas, wherein the shell is provided with a gas inlet, a gas outlet, a first channel, a second channel and a detection cavity, the absorbing piece is arranged in the detection cavity, the detection cavity is provided with a detection window, and a shielding layer is covered on the detection window; the air inlet, the first channel, the detection cavity, the second channel and the air outlet are sequentially communicated;
one side of the detection cavity is provided with a plurality of first passages which are communicated with the first passage and the detection cavity, and the other side of the detection cavity is provided with a plurality of second passages which are communicated with the second passage and the detection cavity;
the first passage comprises a first ventilation groove and a first through hole, the first through hole is arranged at one end of the first ventilation groove, the first through hole is used for communicating the first ventilation groove with the first channel, and the other end of the first ventilation groove is communicated with the detection cavity; the second passage comprises a second ventilation groove and a second ventilation hole, the second ventilation hole is arranged at one end of the second ventilation groove, the second ventilation groove is communicated with the second passage by the second ventilation hole, and the other end of the second ventilation groove is communicated with the detection cavity;
the lateral surface of casing is in the periphery of detecting the window is provided with the sunk structure, the sunk structure certainly the surface subsides of casing and be formed with the sunk mouth that detects the window is link up mutually, shielding layer attached in sunk mouth department, first ventilation groove with the bottom surface of sunk structure is seted up to the second ventilation groove, shielding layer will detect window, the outer hole end of first through-hole, the outer hole end of second through-hole, the notch of first ventilation groove and the notch of second ventilation groove all cover.
2. The sample acquisition device of claim 1, wherein: the detection cavity is of a circular cavity structure, the first passages are distributed at intervals along the circumferential direction of one side of the detection cavity, and the second passages are distributed at intervals along the circumferential direction of the other side of the detection cavity.
3. The sample acquisition device of claim 1, wherein: the housing includes a first assembly and a second assembly that are assembled to form the first channel, the second channel, and the detection cavity.
4. A sample acquisition device according to claim 3, wherein: the detection window is arranged on the first assembly, a convex wall is arranged on the inner side surface of the first assembly around the detection window, an annular groove is arranged on the inner side surface of the second assembly, the convex wall is positioned in the annular groove after the first assembly and the second assembly are assembled, and the edge of the absorption piece is pressed between the convex wall and the annular groove.
5. The sample acquisition device of claim 4, wherein: the flange is annular flange, annular flange with be provided with spacing platform between the border of detection window, the region that the annular encloses forms the mount table, the absorbing member sets up on the mount table, the mount table inlays in the annular flange, just the absorbing member presss from both sides in the mount table with between the spacing platform.
6. A sample acquisition device according to claim 3, wherein: the first assembly is provided with a first concave cavity and a second concave cavity, the second assembly is provided with a third concave cavity and a fourth concave cavity, and the positions of the first concave cavity and the third concave cavity correspond to each other and form the first channel; the second concave cavity and the fourth concave cavity are mutually corresponding in position and form the second channel.
7. The sample acquisition device of claim 1, wherein: the absorbent member includes an arcuate absorbent surface that is outwardly convex.
8. The sample acquisition device of any one of claims 1 to 7, wherein: the first channel is also fixedly provided with an indicating sheet, and an observation port is formed in the position, corresponding to the indicating sheet, on the shell.
9. The sample acquisition device of claim 1, wherein: the first channel comprises an expansion section and a contraction section, the expansion section is located between the air inlet and the contraction section, the width of the expansion section gradually expands from the air inlet to the direction of the contraction section, the contraction section is located between the expansion section and the detection cavity, and the width of the contraction section gradually contracts from the end part of the expansion section to the direction of the detection cavity.
10. The sample acquisition device of claim 1, wherein: the second channel comprises an expansion section, and the width of the expansion section gradually expands from the detection cavity to the direction of the air outlet.
11. The sample acquisition device of claim 1, wherein: the shielding layer is a solid scintillation film or a solid scintillation sheet or a soft film or a thin sheet or a hard cover plate.
12. The sample acquisition device of claim 1, wherein: also included is a solid state scintillator, which is a particulate solid state scintillator attached to the absorber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811523126.1A CN109540610B (en) | 2018-12-12 | 2018-12-12 | Sample collection device |
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| CN201811523126.1A CN109540610B (en) | 2018-12-12 | 2018-12-12 | Sample collection device |
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| CN109540610A CN109540610A (en) | 2019-03-29 |
| CN109540610B true CN109540610B (en) | 2024-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111044547A (en) * | 2019-12-31 | 2020-04-21 | 深圳市福瑞康科技有限公司 | Absorber, gas collecting card, breathing detection equipment, preparation method and application |
| CN111419291A (en) * | 2020-04-24 | 2020-07-17 | 陈粉 | Medical self-service sampling device of respiratory track |
| CN111631755A (en) * | 2020-05-29 | 2020-09-08 | 深圳市福瑞康科技有限公司 | Gas sample collection device |
| CN111631756B (en) * | 2020-05-29 | 2025-07-25 | 深圳市福瑞康科技有限公司 | Gas sample collection device |
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