CN115855824A - Hand-held carbon-13 breath detector - Google Patents
Hand-held carbon-13 breath detector Download PDFInfo
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- CN115855824A CN115855824A CN202310020014.9A CN202310020014A CN115855824A CN 115855824 A CN115855824 A CN 115855824A CN 202310020014 A CN202310020014 A CN 202310020014A CN 115855824 A CN115855824 A CN 115855824A
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Abstract
The application relates to the technical field of medical treatment, in particular to a handheld carbon-13 breath detector. A hand-held carbon-13 breath detector comprises a shell, a gas collecting card, a pneumatic unit arranged in the shell and an optical analysis unit arranged in the shell; the air collecting card is detachably connected with the shell; the pneumatic unit is communicated with the optical analysis unit; when the gas collection card is inserted into the shell, gas collected by the gas collection card can be conducted to the pneumatic unit and the optical analysis unit in sequence; at least two gas collection cards are arranged, at least one gas collection card is used for collecting first gas exhaled by a person in a first situation, and at least one other gas collection card is used for collecting second gas exhaled by the person in a second situation; to sum up, this application will be ingenious with the ingenious combination of collecting gas card, pneumatic unit, display screen, power supply unit and the ingenious control unit in the casing, the small and exquisite of overall structure, and can stabilize and whether accurate definite people suffer from helicobacter pylori.
Description
Technical Field
The application relates to the technical field of medical treatment, in particular to a handheld carbon-13 breath detector.
Background
In hospitals, the initial detection method is to determine whether the content of helicobacter pylori exceeds the standard by a carbon-14 detection method. Exhaled breath was measured after approximately half an hour of sitting still by eating a urea capsule containing a carbon-14 marker. However, the carbon-14 isotope is unstable, has a small amount of radioactivity, has a half-life of 5730 years, and radiates beta rays with an average radiation energy of about 50keV. Although the radiation dose is not large and no specific report is made on the damage to the human body, the carbon-14 may participate in the base synthesis of human cells as carbon-12 atoms after entering the human body, and the released radiation when the carbon-14 decays from a high energy state to a low energy state may cause gene mutation and further affect the health of the human body. The current improvement is to replace carbon-14 with carbon-13 and measure the carbon-13 content in the exhaled breath. The carbon-13 has no radioactivity, is stable and is harmless to human body. The carbon-13 expiration assay is completed in about 25 minutes. Is the internationally accepted "gold standard" for helicobacter pylori testing. It is called "milestone in the history of gastric disease examination". Before examination, the examinee needs to empty the stomach for three hours, completely takes one capsule orally by warm boiled water, after waiting for 15 minutes, blows air into the special expiratory card to take a sample, and then places the expiratory card into a special detector, so that whether the patient has helicobacter pylori infection can be sensitively and accurately detected. By adopting the carbon-13 isotope respiration test detection method, the patient can check the infection quantity of helicobacter pylori causing the gastrointestinal disease in the patient body only by slightly blowing breath into a special disposable special respiration detection card. After the capsule is orally taken, if helicobacter pylori exists in the stomach, the capsule can secrete urease to hydrolyze urea, the urea is hydrolyzed to form CO2 (carbon dioxide), the CO2 enters the lung along with blood and is discharged as gas, and then the gas exhaled by the patient is detected to have the carbon-13 which is not marked, if any, to indicate the existence of the helicobacter pylori. However, it should be noted that H.pylori is present in normal humans, but more than 100dpm is likely to cause canceration. And is infectious and a carcinogenic source specified by the world health organization.
The carbon 13 breath analyzer can assist doctors to diagnose diseases of patients, monitor disease states, observe treatment effects and the like by measuring the components and concentration of the exhaled gas of the human body. The following instruments are used for breath test: mass spectrum analyzer, infrared spectrum analyzer, laser spectrum analyzer. The system of the mass spectrum analyzer is complex and high in cost; the core device cost of the laser spectrometer is very high. Although many medical institutions and enterprises at home and abroad also use the infrared spectroscopy principle to develop an exhalation analyzer, the exhalation analyzer is inconvenient to carry due to large volume, is generally only used in hospital detection, is limited by place, time and detection mode, and is inconvenient for users. And because the concentration and the uniformity of the gas sample are easily influenced by factors such as environmental temperature, air pressure and the like, the detection of the gas sample is easy to have errors, and the accuracy and the stability are limited.
Therefore, improving the accuracy and stability of the detection of the gas sample carbon 13 and promoting the miniaturization of the instrument become technical problems to be solved urgently by those skilled in the art.
Disclosure of Invention
The application aims to provide a handheld carbon-13 breath detector which is used for promoting the miniaturization development of the detector while improving the accuracy and stability of the detection of the carbon 13 in a gas sample to a certain extent.
The application provides a handheld carbon-13 breath detector, which is used for detecting whether a person has helicobacter pylori and comprises a shell, a gas collecting card, a pneumatic unit arranged in the shell and an optical analysis unit arranged in the shell;
the air collecting card is detachably connected with the shell; the pneumatic unit is communicated with the optical analysis unit; when the gas collection card is inserted into the shell, gas collected by the gas collection card can be sequentially conducted to the pneumatic unit and the optical analysis unit;
the gas collection cards are at least two, at least one gas collection card is used for collecting first gas exhaled by a person in a first situation, and at least another gas collection card is used for collecting second gas exhaled by the person in a second situation;
the optical analysis unit is used for analyzing the first gas and the second gas to determine whether the person has helicobacter pylori.
In the above technical solution, further, the gas collection card includes an outer shell, an air bag, an air nozzle, and a protective cover;
the outer shell is provided with an accommodating space, and the air bag is arranged in the accommodating space;
one end of the air tap is arranged on the air bag through a one-way air inlet valve, the other end of the air tap extends out of the shell, and the protective cover is detachably connected with the air tap; when the protective cover is detached from the air faucet, the air bag can be blown by the air faucet;
a through hole is formed in one end, far away from the air faucet, of the outer shell; the gas collected by the gas collection card can be conducted to the pneumatic unit through the through hole.
In the above technical solution, further, the gas collecting card is clamped to the housing through a clamping component;
the clamping component is provided with a clamping part and a limiting part;
when the gas collection card is inserted into the shell, one end of the gas collection card abuts against the clamping portion and moves along a first direction until the limiting portion abuts against the gas collection card.
In the above technical solution, further, two gas collection cards are provided, where the two gas collection cards are a first gas collection card for collecting the first gas and a second gas collection card for collecting the second gas respectively;
the pneumatic unit comprises an air pump, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, an air inlet pipeline extending out of the shell and an air outlet pipeline extending out of the shell;
the first gas collecting card is communicated with a first end of the first electromagnetic valve through a first pipeline, a second end of the first electromagnetic valve is connected with a second end of the third electromagnetic valve through a second pipeline, and a third end of the first electromagnetic valve is communicated with a second end of the second electromagnetic valve through a third pipeline;
the second gas collecting card is communicated with a first end of the second electromagnetic valve through a fourth pipeline, and a third end of the second electromagnetic valve is communicated with the air inlet pipeline through a fifth pipeline;
the third end of the third electromagnetic valve is communicated with the air inlet end of the air pump through a sixth pipeline, and the air outlet end of the air pump is communicated with the optical analysis unit; the first end of the third electromagnetic valve is communicated with the first end of the fourth electromagnetic valve through a seventh pipeline;
the second end of the fourth electromagnetic valve is communicated with the gas outlet pipeline through an eighth pipeline; and the third end of the fourth electromagnetic valve is communicated with the optical analysis unit through a ninth pipeline.
In the above technical solution, further, the apparatus further comprises a filtering unit;
the filtering unit comprises a first filter, a second filter, a third filter, a fifth electromagnetic valve and a sixth electromagnetic valve;
the first filter is arranged on the seventh pipeline;
the second filter, the fifth electromagnetic valve and the sixth electromagnetic valve are sequentially arranged on the fifth pipeline, and the second filter is close to the air inlet pipeline;
and two ends of the third filter are respectively communicated with the fifth electromagnetic valve and the sixth electromagnetic valve.
In the above technical solution, further, the second filter and the third filter are both U-shaped tube structures.
In the above technical solution, further, the optical analysis unit includes two sets of analysis components, wherein one set of the analysis components is used for analyzing the first gas, and the other set of the analysis components is used for analyzing the second gas;
the gas analysis component comprises a light source, a gas collection chamber and an infrared sensor which are arranged in sequence;
the gas collection chamber is provided with a gas inlet port and a gas outlet port, the gas inlet port is communicated with the gas pump, and the gas outlet port is communicated with the third end of the fourth electromagnetic valve.
In the above technical solution, further, the power supply device further includes a power supply unit; the power supply unit is electrically connected with the air pump, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the sixth electromagnetic valve respectively.
In the above technical solution, further, the system further comprises a control unit;
the control unit comprises a single chip microcomputer, and the single chip microcomputer is in communication connection with the infrared sensor, the power supply unit, the air pump, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the sixth electromagnetic valve.
In the above technical solution, further, the display device further comprises a display screen; the display screen is respectively and electrically connected with the power supply unit and the single chip microcomputer.
Compared with the prior art, the beneficial effect of this application is:
the application provides a hand-held carbon-13 breath detector which is used for detecting whether a person suffers from helicobacter pylori and comprises a shell, a gas collecting card, a pneumatic unit arranged in the shell and an optical analysis unit arranged in the shell;
the air collecting card is detachably connected with the shell; the pneumatic unit is communicated with the optical analysis unit; when the gas collection card is inserted into the shell, the gas collected by the gas collection card can be sequentially conducted to the pneumatic unit and the optical analysis unit;
the gas collection cards are at least two, at least one gas collection card is used for collecting first gas exhaled by a person in a first situation, and at least another gas collection card is used for collecting second gas exhaled by the person in a second situation;
the optical analysis unit is used for analyzing the first gas and the second gas to determine whether the person suffers from helicobacter pylori.
Specifically, to sum up, this application will be ingenious with the ingenious combination of collecting gas card, pneumatic unit, display screen, power supply unit and the ingenious of control unit in the casing, overall structure is small and exquisite, and can stabilize and whether accurate definite people suffer from helicobacter pylori.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings used in the detailed description or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a hand-held carbon-13 breath test instrument according to the present disclosure at a first viewing angle;
FIG. 2 is a schematic view of a hand-held carbon-13 breath test instrument according to the present disclosure at a second viewing angle;
FIG. 3 is a schematic structural diagram of a gas collection card of the hand-held carbon-13 breath test instrument provided herein;
FIG. 4 is an exploded view of a gas collection card in the hand-held carbon-13 breath test meter provided herein;
FIG. 5 is a schematic view of a first configuration of a hidden housing of the hand-held carbon-13 breath test meter provided herein;
FIG. 6 is a schematic view of a second configuration of a hidden housing of the hand-held carbon-13 breath test meter provided herein;
fig. 7 is a schematic structural diagram of a hidden housing, a gas collection card, and a touch screen in the handheld carbon-13 breath detector provided in the present application;
fig. 8 is a schematic structural diagram of a hidden casing, a gas collecting card, a touch screen and a housing in the handheld carbon-13 breath detector provided in the present application;
FIG. 9 is a schematic diagram illustrating a first solenoid valve of the hand-held carbon-13 breath test instrument according to the present disclosure;
FIG. 10 is a schematic view of the first and second sidewalls of the hand-held carbon-13 breath test instrument provided herein;
FIG. 11 is a diagram of the plumbing connections for the pneumatic unit of the hand-held carbon-13 breath test meter provided herein;
fig. 12 is a block diagram of an optical analysis unit in the handheld carbon-13 breath detector provided in the present application.
Reference numerals: 1-a shell; 2-a first gas collecting card; 3-a second gas collecting card; 4-a pneumatic unit; 5-an optical analysis unit; 6-a filtration unit; 7-air bag; 8-air tap; 9-a protective cover; 10-one-way intake valve; 11-a through hole; 12-a first direction; 13-an air pump; 14-a first solenoid valve; 15-a second solenoid valve; 16-a third solenoid valve; 17-a fourth solenoid valve; 18-an air intake line; 19-an air outlet pipeline; 20-a first conduit; 21-a first end of a first solenoid valve; 22-a second end of the first solenoid valve; 23-a second conduit; 24-a second end of a third solenoid valve; 25-a third end of the first solenoid valve; 26-a third line; 27-a second end of the second solenoid valve; 28-a fourth line; 29-a first end of a second solenoid valve; 30-a third end of the second solenoid valve; 31-fifth pipeline; 32-a third end of a third solenoid valve; 34-the air inlet end of the air pump; 35-the air outlet end of the air pump; 36-a first end of a third solenoid valve; 37-a seventh conduit; 38-a first end of a fourth solenoid valve; 39-a second end of the fourth solenoid valve; 41-a third end of a fourth solenoid valve; 44-a second filter; 45-a third filter; 46-a fifth solenoid valve; 47-sixth solenoid valve; 48-a light source; 49-gas collection chamber; 50-an infrared sensor; 51-a power supply unit; 52-a single chip microcomputer; 53-display screen; 54-a housing; 55-a first side wall; 56-a second side wall; 57-a clamping block; 58-a limiting block; 59-a spring; 60-a first stop bar; 61-a second stop bar; 62-a first cavity; 63-a second cavity; 64-a button; 65-a first housing; 66-a second housing; 67-abutting holes; 68-a limiting hole; 69-optical filter.
Detailed Description
The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art in view of the disclosure of the present application. For example, the order of operations described herein is merely an example, which is not limited to the order set forth herein, but rather, variations may be made in addition to operations which must occur in a particular order, which will be apparent upon understanding the disclosure of the present application. Moreover, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.
The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent after understanding the disclosure of the present application.
Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on," "connected to," coupled to, "over," or "overlying" another element, it may be directly "on," "connected to," coupled to, "over," or "overlying" the other element, or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," directly coupled to, "directly over" or "directly overlying" another element, there may be no intervening elements present.
As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.
Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first member, component, region, layer or section discussed in the examples described herein could be termed a second member, component, region, layer or section without departing from the teachings of the examples.
For ease of description, spatial relationship terms such as "above … …", "above", "below … …", and "below" may be used herein to describe the relationship of one element to another element as shown in the drawings. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to other elements would then be oriented "below" or "lower" relative to the other elements. Thus, the term "above … …" includes both orientations "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof. Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.
The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.
The handheld carbon-13 breath test instrument provided herein is described in conjunction with fig. 1-12.
The application provides a hand-held carbon-13 breath detector which is used for detecting whether a person suffers from helicobacter pylori or not, and the hand-held carbon-13 breath detector comprises a shell 1, an air collecting card, a pneumatic unit 4 arranged in the shell 1 and an optical analysis unit 5 arranged in the shell 1.
Specifically, a mounting cavity is enclosed by the shell 1, and a first mounting position, a second mounting position, a third mounting position, a fourth mounting position, a fifth mounting position and a sixth mounting position are arranged in the mounting cavity; further, a first mounting position is used for mounting the air collecting card, a second mounting position is used for mounting the pneumatic unit 4, a third mounting position is used for mounting the optical analysis unit 5, a fourth mounting position is used for mounting the display screen 53 (explained below), a fifth mounting position is used for mounting the control unit (explained below), and a sixth mounting position is used for mounting the power supply unit 51 (explained below); further, as shown in fig. 5, the first mounting position is above the second mounting position, the fourth mounting position is above the first mounting position, the third mounting position is below the first mounting position, the sixth mounting position is below the third mounting position, and the fifth mounting position is above the third mounting position.
Specifically, the air collecting card is detachably connected with the shell 1; the pneumatic unit 4 communicates with the optical analysis unit 5; when the gas collection card is inserted into the housing 1, the gas collected by the gas collection card can be conducted to the pneumatic unit 4 and the optical analysis unit 5 in sequence; the gas collection cards are at least provided with two, at least one gas collection card is used for collecting the people in the first condition (the first condition refers to that the people do not eat 13 C-labelled urea capsules) exhaled first gas, at least one other of said gas collection cards being adapted to collect gas in a second condition (the second condition being that a person eats 13 C-labelled urea capsules) exhaled second gas; the optical analysis unit 5 is used to analyze the first gas and the second gas to determine whether the person has helicobacter pylori.
To sum up, this application will be ingenious with the ingenious combination of album gas card, pneumatic unit 4, display screen 53, power supply unit 51 and the ingenious combination of control unit in casing 1, the small and exquisite of overall structure, and can stabilize and whether accurate definite people suffer from helicobacter pylori.
In this embodiment, the gas collection card includes an outer casing 1, an air bag 7, an air nozzle 8 and a protective cover 9; specifically, the outer shell 1 includes a first outer shell 65 and a second outer shell 66 which are clamped to each other, and when the first outer shell 65 and the second outer shell 66 are clamped together, an accommodating space can be enclosed, and the accommodating space is used for accommodating the airbag 7. Specifically, one end of the air nozzle 8 is disposed on the air bag 7 through the one-way air inlet valve 10, and the other end extends out of the housing 1, where the one-way air inlet valve 10 is understood as an inflating structure of the tire, and the one-way air inlet valve 10 is disposed to ensure that the air bag 7 can be inflated without the air in the air bag 7 overflowing to the outside of the housing 1. Specifically, the protective cover 9 is detachably connected to the air faucet 8; when the protective cover 9 is detached from the air nozzle 8, the air bag 7 can be blown through the air nozzle 8, so that air is stored in the air bag 7, and when the blowing operation is completed, the protective cover 9 is buckled on the air nozzle 8. Specifically, a through hole 11 is formed in one end of the outer shell 1, which is far away from the air faucet 8; the gas collected by the gas collection card can be conducted to the pneumatic unit 4 through the through-hole 11.
In this embodiment, the gas collecting card is clamped to the housing 1 through the clamping component; specifically, the first installation position is enclosed by the housing 54, and the housing 54 has a first cavity 62 for inserting the first air collecting card 2 (which will be described below and will not be described herein in more detail) and a second cavity 63 for inserting the second air collecting card 3 (which will be described below and will not be described herein in more detail); specifically, the shell 54 has a first side wall 55 and a second side wall 56 which are opposite to each other, the first side wall 55 is provided with a clamping component corresponding to the first cavity 62, the second side wall 56 is provided with a second clamping component corresponding to the second cavity 63, positioning of the air collecting card can be achieved through the clamping component arranged on the side walls, occupied space of the shell 1 can be reduced, and therefore the air collecting card is located, and the shell 1 can be used for achieving the purpose 13 And C, miniaturization of the breath detector.
More specifically, referring to fig. 6, the second sidewall 56 is taken as an example to illustrate the clamping assembly, which includes a slider disposed on the inner sidewall of the second sidewall 56, a clamping block 57 disposed on the slider, a limiting block 58 disposed on the edge of the second sidewall 56, a spring 59 (one end of the spring 59 is hooked on the clamping block 57 and the other end is hooked on the top end of the second sidewall 56), a first limiting bar 60 (one end of the first limiting bar 60 is fixed on the clamping block 57, and the other end extends toward the limiting block 58), and a second limiting bar 61 (one end of the second limiting bar 61 is hooked on the bottom end of the second sidewall 56 and the other end is disposed in a groove formed on the slider); a limit hole 68 is formed in the side wall of the outer shell 1 of the air collecting card along the length direction of the outer shell, and an abutting hole 67 is formed between the through hole 11 and the limit hole 68; in the actual plugging process: the abutting hole 67 abuts against the clamping block 57, the gas collecting card is pressed along the first direction 12, at this time, the spring 59 is stretched, the second limiting strip 61 moves in the groove (the set track), and when the second limiting strip 61 slides to the end point of the groove, the first limiting strip 60 at this time is well clamped in the limiting hole 68, and then the gas collecting card is positioned.
In this embodiment, specifically, two gas collection cards are provided, namely a first gas collection card 2 for collecting the first gas and a second gas collection card 3 for collecting the second gas. Specifically, the pneumatic unit 4 includes an air pump 13, a first solenoid valve 14, a second solenoid valve 15, a third solenoid valve 16, a fourth solenoid valve 17, an air inlet line 18 extending out of the housing 1, and an air outlet line 19 extending out of the housing 1; further, the first air collecting card 2 is communicated with a first end 21 of a first solenoid valve through a first pipeline 20, a second end 22 of the first solenoid valve is connected with a second end 24 of a third solenoid valve through a second pipeline 23, and a third end 25 of the first solenoid valve is communicated with a second end 27 of the second solenoid valve through a third pipeline 26; further, the second air collecting card 3 is communicated with a first end 29 of a second electromagnetic valve through a fourth pipeline 28, and a third end 30 of the second electromagnetic valve is communicated with the air inlet pipeline 18 through a fifth pipeline 31; further, a third end 32 of the third electromagnetic valve is communicated with an air inlet end 34 of the air pump through a sixth pipeline, and an air outlet end 35 of the air pump is communicated with the optical analysis unit 5; the second end 24 of the third solenoid valve communicates with the first end 38 of the fourth solenoid valve through a seventh conduit 37; further, the second end 39 of the fourth solenoid valve communicates with the outlet line 19 through an eighth line; the third end 41 of the fourth solenoid valve communicates with the optical analysis unit 5 through a ninth conduit.
It is worth noting that: referring to fig. 7, the end of the first pipeline 20 facing the through hole 11 of the first gas collecting card 2 is a tip structure, and the end of the fourth pipeline 28 facing the through hole 11 of the second gas collecting card 3 is a tip structure, so that the first pipeline 20 can conduct gas to the pneumatic unit 4 and the fourth pipeline 28 can conduct gas to the pneumatic unit 4 when the gas collecting card is inserted into the housing 1.
In this embodiment, a filter unit 6 is also included; specifically, the filtering unit 6 includes a first filter, a second filter 44, a third filter 45, a fifth electromagnetic valve 46, and a sixth electromagnetic valve 47; a first filter is arranged in the seventh pipeline 37, and the first filter is used for dehumidification. The second filter 44, the fifth electromagnetic valve 46 and the sixth electromagnetic valve 47 are sequentially arranged on the fifth pipeline 31, and the second filter 44 is close to the air inlet pipeline 18; both ends of the third filter 45 are respectively communicated with the fifth electromagnetic valve 46 and the sixth electromagnetic valve 47, wherein the second filter 44 is used for removing PM2.5 in the air, and the third filter 45 is used for filtering carbon dioxide.
More specifically, the second filter 44 and the third filter 45 are all of a U-shaped tube structure.
In this embodiment, the optical analysis unit 5 comprises two sets of analysis means, one for analyzing the first gas and the other for analyzing the second gas; specifically, the gas analysis means comprises a light source 48, a plenum 49 and an infrared sensor 50 arranged in sequence; the air collection chamber 49 has an air inlet port communicating with the air pump 13 and an air outlet port communicating with the third end 41 of the fourth solenoid valve.
Further, an optical filter 69 is disposed between the light source and the plenum.
More specifically, the principle of the analysis means is: the detection of the gas concentration is achieved by the property of selective absorption of infrared light of a particular wavelength. When infrared light passes through the gas to be measured, the gas molecules absorb infrared light with specific wavelength, the intensity of the light is reduced in proportion to the number of the molecules, the relation between the change of the light intensity and the number of the molecules obeys Lambert-Beer (Lambert-Beer) absorption law, and the concentration of the gas can be determined. Further, the absorption of infrared radiation by gases follows lambert-beer's law, as in equation (1):
wherein I represents the energy of infrared radiation absorbed by the gas; i is 0 An initial energy representing infrared radiation; k represents a gas absorption coefficient; c represents the measured gas concentration; l represents the thickness of the radiation passing through the gas layer. By measuring the initial energy I of infrared radiation 0 And the energy I of the infrared radiation absorbed by the gas, the gas concentration c can be detected.
C Front side ＝C Front 12 +C Front 13 ，C Rear end ＝C Rear 12 +C Rear 13
ΔE＝E-σ 1
Wherein, C Front side Representing the concentration of carbon dioxide before taking the medicine; c Rear end Representing the concentration of carbon dioxide after taking the medicine; c 12 ，C 13 Respectively represent C in exhaled air 12 And C 13 The concentration of (c); Δ E represents the DOB value above background. DOB (Delta-over-base) represents C in breath samples 13 A value of over-reference. If the delta E is more than 4, the detection result is judged to be positive, otherwise, the detection result is judged to be negative.
In this embodiment, a power supply unit 51 is further included; the power supply unit 51 is electrically connected to the air pump 13, the first solenoid valve 14, the second solenoid valve 15, the third solenoid valve 16, the fourth solenoid valve 17, the fifth solenoid valve 46, and the sixth solenoid valve 47, respectively.
In this embodiment, a control unit is also included; the control unit comprises a single chip microcomputer 52, and the single chip microcomputer 52 is in communication connection with the infrared sensor 50, the power supply unit 51, the air pump 13, the first electromagnetic valve 14, the second electromagnetic valve 15, the third electromagnetic valve 16, the fourth electromagnetic valve 17, the fifth electromagnetic valve 46 and the sixth electromagnetic valve 47.
In this embodiment, a display 53 is also included; the display 53 is electrically connected to the power supply unit 51 and the single chip 52, respectively.
Specifically, the single chip microcomputer 52 and the infrared sensor 50 are used for analyzing data obtained by the infrared sensor 50 and finally displaying the analyzed result on the display 53.
Specifically, the asynchronous serial port of the single chip microcomputer 52 realizes the communication function with the display screen 53 and the optical analysis unit 5. The output port of the single chip 52 controls the power MOS tube to realize the on-off control of the air pump 13 and the air valve (the above-mentioned electromagnetic valve). The single chip microcomputer 52 realizes the functions of charging and external communication through a TypeC port.
More specifically, the solenoid valves are all three-way valves, and the single chip 52 can control the conduction mode of the three-way valves.
When the first gas is divided: when the single chip microcomputer 52 controls the first end 21 of the first electromagnetic valve to be communicated with the second end 22 of the first electromagnetic valve and the second end 24 of the third electromagnetic valve to be communicated with the third end 32 of the third electromagnetic valve, at this time, the first gas in the first gas collecting card 2 can be sequentially introduced into the gas pump 13 and the optical analysis unit 5 through the first electromagnetic valve 14, the first pipeline 20 and the third electromagnetic valve 16, the analysis of the first gas is realized in the optical analysis unit 5, and the analysis result is finally displayed on the display screen 53; after the analysis result is finished, the single chip microcomputer 52 controls the third end 41 of the fourth electromagnetic valve and the second end 39 of the fourth electromagnetic valve to conduct, so that the first gas in the optical analysis unit 5 passes through the fourth electromagnetic valve 17 and is discharged out of the housing 1 through the gas outlet pipeline 19.
When the first gas is divided: when the single chip microcomputer 52 controls the first end 29 of the second electromagnetic valve to be conducted with the second end 27 of the second electromagnetic valve, the second end 22 of the first electromagnetic valve to be conducted with the third end 25 of the first electromagnetic valve, and the second end 24 of the third electromagnetic valve to be conducted with the third end 32 of the third electromagnetic valve, at this time, the second gas in the second gas collection card 3 can be sequentially introduced into the gas pump 13 and the optical analysis unit 5 through the second electromagnetic valve 15, the first electromagnetic valve 14, the first pipeline 20 and the third electromagnetic valve 16, and the analysis of the second gas is realized in the optical analysis unit 5, and the analysis result is finally displayed on the display 53; after the analysis result is finished, the single chip microcomputer 52 controls the third end 41 of the fourth electromagnetic valve and the second end 39 of the fourth electromagnetic valve to conduct, so that the second gas in the optical analysis unit 5 passes through the fourth electromagnetic valve 17 and is discharged out of the housing 1 through the gas outlet pipeline 19.
In the above-mentioned process for discharging the first gas and the second gas from the optical analysis unit 5, if the single-chip microcomputer 52 detects that the moisture in the gas is too large, the single-chip microcomputer 52 controls the third end 41 of the fourth electromagnetic valve to be conducted with the first end 38 of the fourth electromagnetic valve, the first end 36 of the third electromagnetic valve to be conducted with the third end 32 of the third electromagnetic valve, that is, at this time, the gas is circulated back and forth among the third electromagnetic valve 16, the fourth electromagnetic valve 17, the air pump 13, and the optical analysis unit 5, and in this process, the first filter on the seventh pipeline 37 dehumidifies the gas until the humidity is in the standard atmosphere, and the single-chip microcomputer 52 controls the third end 41 of the fourth electromagnetic valve to be conducted with the second end 39 of the fourth electromagnetic valve, so that the gas in the optical analysis unit 5 is discharged out of the housing 1.
After the first gas and the second gas are analyzed, when the optical analysis unit 5 and the air pump 13 need to be dried and cleaned, the single chip 52 controls the second filter 44, the fifth electromagnetic valve 46, the sixth electromagnetic valve 47 to be opened, the third filter 45 to be opened, the third end 30 of the second electromagnetic valve to be conducted with the second end 27 of the second electromagnetic valve, the third end 25 of the first electromagnetic valve to be conducted with the second end 22 of the first electromagnetic valve, the second end 24 of the third electromagnetic valve to be conducted with the third end 32 of the third electromagnetic valve, and the third end 41 of the fourth electromagnetic valve to be conducted with the second end 39 of the fourth electromagnetic valve, that is, when the gas enters from the outside of the housing 1, the gas passes through the second filter 44, the fifth electromagnetic valve 46, the third filter 45, the sixth electromagnetic valve 47, the second electromagnetic valve 15, the first electromagnetic valve 14, the third electromagnetic valve 16, the air pump 13, the optical analysis unit 5, and the fourth electromagnetic valve 17 in sequence, and is arranged outside the housing 1.
Besides, the intelligent control system is further provided with a button 64, the button 64 is in communication connection with a display screen, a power supply unit and a control unit, and the button is used for opening and closing the equipment.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A hand-held carbon-13 breath detector is used for detecting whether a person suffers from helicobacter pylori, and is characterized by comprising a shell, a gas collecting card, a pneumatic unit arranged in the shell and an optical analysis unit arranged in the shell;
the air collecting card is detachably connected with the shell; the pneumatic unit is communicated with the optical analysis unit; when the gas collection card is inserted into the shell, the gas collected by the gas collection card can be sequentially conducted to the pneumatic unit and the optical analysis unit;
the gas collection cards are at least two, at least one gas collection card is used for collecting first gas exhaled by a person in a first situation, and at least another gas collection card is used for collecting second gas exhaled by the person in a second situation;
the optical analysis unit is used for analyzing the first gas and the second gas to determine whether the person suffers from helicobacter pylori.
2. The hand-held carbon-13 breath test instrument of claim 1, wherein the gas collection card comprises an outer housing, a bladder, a gas nozzle, and a protective cover;
the outer shell is provided with an accommodating space, and the air bag is arranged in the accommodating space;
one end of the air tap is arranged on the air bag through a one-way air inlet valve, the other end of the air tap extends out of the shell, and the protective cover is detachably connected with the air tap; when the protective cover is detached from the air faucet, the air bag can be blown by the air faucet;
a through hole is formed in one end, far away from the air tap, of the outer shell; the gas collected by the gas collection card can be conducted to the pneumatic unit through the through hole.
3. The hand-held carbon-13 breath test instrument of claim 2, wherein the gas manifold is snap-fit to the housing via a snap-fit assembly;
the clamping component is provided with a clamping part and a limiting part;
when the gas collection card is inserted into the shell, one end of the gas collection card abuts against the clamping portion and moves along a first direction until the limiting portion abuts against the gas collection card.
4. The hand-held carbon-13 breath test instrument of claim 1, wherein there are two gas collection cards, a first gas collection card for collecting the first gas and a second gas collection card for collecting the second gas;
the pneumatic unit comprises an air pump, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, an air inlet pipeline extending out of the shell and an air outlet pipeline extending out of the shell;
the first gas collecting card is communicated with a first end of the first electromagnetic valve through a first pipeline, a second end of the first electromagnetic valve is connected with a second end of the third electromagnetic valve through a second pipeline, and a third end of the first electromagnetic valve is communicated with a second end of the second electromagnetic valve through a third pipeline;
the second gas collecting card is communicated with a first end of the second electromagnetic valve through a fourth pipeline, and a third end of the second electromagnetic valve is communicated with the air inlet pipeline through a fifth pipeline;
the third end of the third electromagnetic valve is communicated with the air inlet end of the air pump through a sixth pipeline, and the air outlet end of the air pump is communicated with the optical analysis unit; the first end of the third electromagnetic valve is communicated with the first end of the fourth electromagnetic valve through a seventh pipeline;
a second end of the fourth electromagnetic valve is communicated with the air outlet pipeline through an eighth pipeline; and the third end of the fourth electromagnetic valve is communicated with the optical analysis unit through a ninth pipeline.
5. The hand-held carbon-13 breath test instrument of claim 4, further comprising a filter unit;
the filtering unit comprises a first filter, a second filter, a third filter, a fifth electromagnetic valve and a sixth electromagnetic valve;
the first filter is arranged on the seventh pipeline;
the second filter, the fifth electromagnetic valve and the sixth electromagnetic valve are sequentially arranged on the fifth pipeline, and the second filter is close to the air inlet pipeline;
and two ends of the third filter are respectively communicated with the fifth electromagnetic valve and the sixth electromagnetic valve.
6. The hand-held carbon-13 breath test instrument of claim 5, wherein the second filter and the third filter are both of a U-tube construction.
7. The hand-held carbon-13 breath test instrument of claim 5 wherein the optical analysis unit comprises two sets of analytical components, one set for analyzing the first gas and the other set for analyzing the second gas;
the gas analysis component comprises a light source, a gas collection chamber and an infrared sensor which are arranged in sequence;
the gas collection chamber is provided with a gas inlet port and a gas outlet port, the gas inlet port is communicated with the gas pump, and the gas outlet port is communicated with the third end of the fourth electromagnetic valve.
8. The hand-held carbon-13 breath test instrument of claim 7, further comprising a power supply unit; the power supply unit is electrically connected with the air pump, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the sixth electromagnetic valve respectively.
9. The hand-held carbon-13 breath test instrument of claim 8, further comprising a control unit;
the control unit comprises a single chip microcomputer, and the single chip microcomputer is in communication connection with the infrared sensor, the power supply unit, the air pump, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the sixth electromagnetic valve.
10. The hand-held carbon-13 breath test instrument of claim 9, further comprising a display screen; the display screen is respectively and electrically connected with the power supply unit and the single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310020014.9A CN115855824A (en) | 2023-01-06 | 2023-01-06 | Hand-held carbon-13 breath detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310020014.9A CN115855824A (en) | 2023-01-06 | 2023-01-06 | Hand-held carbon-13 breath detector |
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| Publication Number | Publication Date |
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| CN115855824A true CN115855824A (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310020014.9A Pending CN115855824A (en) | 2023-01-06 | 2023-01-06 | Hand-held carbon-13 breath detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117281558A (en) * | 2023-11-22 | 2023-12-26 | 深圳市福瑞康科技有限公司 | Detection system for helicobacter pylori and acquisition mechanism thereof |
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2023
- 2023-01-06 CN CN202310020014.9A patent/CN115855824A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117281558A (en) * | 2023-11-22 | 2023-12-26 | 深圳市福瑞康科技有限公司 | Detection system for helicobacter pylori and acquisition mechanism thereof |
| CN117281558B (en) * | 2023-11-22 | 2024-02-27 | 深圳市福瑞康科技有限公司 | Detection system for helicobacter pylori and acquisition mechanism thereof |
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