CN220477609U - Oral cavity gas sampling device - Google Patents
Oral cavity gas sampling device Download PDFInfo
- Publication number
- CN220477609U CN220477609U CN202321698994.XU CN202321698994U CN220477609U CN 220477609 U CN220477609 U CN 220477609U CN 202321698994 U CN202321698994 U CN 202321698994U CN 220477609 U CN220477609 U CN 220477609U
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- gas
- interface
- sampler
- sampling device
- oral
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- 238000005070 sampling Methods 0.000 title claims abstract description 56
- 210000000214 mouth Anatomy 0.000 title claims abstract description 24
- 238000001035 drying Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 19
- 230000010354 integration Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 55
- 238000000034 method Methods 0.000 description 5
- 239000012855 volatile organic compound Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 208000025157 Oral disease Diseases 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000021302 gastroesophageal reflux disease Diseases 0.000 description 1
- 201000007270 liver cancer Diseases 0.000 description 1
- 208000014018 liver neoplasm Diseases 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 208000030194 mouth disease Diseases 0.000 description 1
- 208000000689 peptic esophagitis Diseases 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Abstract
The utility model relates to the technical field of medical equipment, and discloses an oral cavity gas sampling device which comprises a sampler with a cavity inside and a through hole on the surface, an air extraction part and an air storage part which are connected with the sampler through sampling pipelines, wherein a three-way valve is arranged on the sampling pipeline, a first interface and a second interface of the three-way valve are respectively connected with the sampler and the air extraction part, a third interface is connected with the air storage part, and one-way valves are arranged at the first interface and the third interface. Through the setting of three-way valve, control the passageway between sampling end, bleed end and the gas storage end, realize the integration operation of sample collection and sample transfer, easy and simple to handle to can reduce and mix in outside gas, guarantee the sampling gas purity.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to an oral gas sampling device.
Background
The composition and the level of volatile organic compounds (Volatile Organic Compounds, VOCs for short) in the exhaled air of the human body can reflect the metabolic condition of the human body, thereby assisting clinical diagnosis and treatment work. For over twenty years, the kit is widely used for auxiliary diagnosis, treatment and research of various diseases, such as lung cancer, asthma, liver cancer, reflux esophagitis and the like. The gas detection mode generally adopts a gas collecting device to collect and detect gas exhaled by a person to be detected, wherein the gas exhaled by a human body comprises alveolar gas, airway gas and oral gas, and when the oral disease is diagnosed, the collection of the alveolar gas and the airway gas is required to be removed so as not to influence the detection result.
The current commonly used exhaled gas collection mainly comprises two modes, wherein the first mode is to directly collect the exhaled gas of a person to be collected by using a traditional sampling bag, and the mode is low in price, but the outside gas and the alveolar gas are easy to mix in the collected gas, and the preservation is inconvenient; the second is to use the instrument to sample and detect, for example use Bio-VOC breath sampler to sample, although can recycle, facilitate preserving, but mainly used for alveolar air collection, and the cost performance is low; or the sampling detection is carried out by the ReCIVA breath detector, and the sampling process of the instrument is comfortable, the sample is convenient to store, but the oral air can not be effectively collected for detection, and the instrument is high in price.
Disclosure of Invention
In order to solve the problem of mixing of the sampled gases at present, the application provides an oral gas sampling device.
The technical scheme adopted by the utility model is as follows: the utility model provides a gaseous sampling device in oral cavity, includes that inside is the cavity and the surface is equipped with the sample thief of through-hole, through sampling pipeline and the component of bleeding and the gas storage part that the sample thief is connected, is provided with the three-way valve on the sampling pipeline, and sample thief and the component of bleeding are connected respectively to the first interface and the second interface of three-way valve, and third interface connection gas storage part, first interface and third interface department are equipped with the check valve.
Further, the sampler is spherical, columnar, square, trapezoidal or nipple-shaped.
Further, the through hole is circular, elliptical or polygonal.
Further, the through hole is provided at an upper portion of the sampler.
Further, the sampler is made of food-grade silica gel, food-grade rubber or PTFE.
Further, a baffle is arranged at the rear end of the sampler.
Further, the air extraction component is a needle cylinder, the needle cylinder is matched with a micro suction pump or the needle cylinder is matched with a negative pressure device.
Further, a drying or filtering device is also arranged between the gas storage component and the third interface.
Further, the gas storage component is a gas collecting bag or a gas collecting tube.
The application principle of the utility model is as follows: firstly, a one-way valve of a first interface is conducted, a one-way valve of a third interface is closed, at the moment, a first interface end and a second interface end of the three-way valve are communicated, namely, a passage is formed between a sampler and an air extraction component, the sampler is placed in an oral cavity, teeth bite the rear end of the sampler lightly, a baffle at the rear end of the sampler is assisted to form an oral cavity closed state, oral cavity gas is extracted through the air extraction component, the oral cavity gas enters a sampling pipeline through a through hole on the surface of the sampler, and the sampling pipeline and the passage formed by the three-way valve enter the air extraction component for temporary storage, so that sampling of a sample is completed; then closing the one-way valve of the first interface, and conducting the one-way valve of the third interface, wherein at the moment, the third interface end of the second interface end of the three-way valve is communicated, namely, a passage is formed between the air extraction part and the air storage part, the air extraction part reversely releases the collected oral gas sample, and the oral gas sample enters the air storage part connected with the third interface end through the sampling pipeline to finish sample transfer.
The utility model has the beneficial effects that:
the sampler is placed in the oral cavity, the extraction of the oral cavity gas is carried out through the air extraction component, the exhalation of a human body is not needed, and only the oral cavity gas can be collected, so that the alveolar gas is removed; through the setting of three-way valve, control the passageway between sampling end, bleed end and the gas storage end, realize the integration operation of sample collection and sample transfer, easy and simple to handle to can reduce and mix in outside gas, guarantee the sampling gas purity.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without inventive effort:
fig. 1 is a schematic structural diagram of a sampler in the present utility model, fig. 1 (a) is a schematic structural diagram of a first sampler, fig. 1 (b) is a schematic structural diagram of a second sampler, and fig. 1 (c) is a schematic structural diagram of a third sampler.
Fig. 2 is a schematic view of an overall structure in the present utility model.
Fig. 3 is a schematic view of another overall structure of the present utility model.
In the figure: 1. a sampler; 2. a through hole; 3. a baffle; 4. a sampling pipeline; 5. an air extracting part; 6. a three-way valve; 601. a first interface; 602. a second interface; 603. a third interface; 7. a one-way valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
As shown in fig. 2 and 3, an oral cavity gas sampling device comprises a sampler 1, an air extraction component 5 and a gas storage component, wherein the interior of the sampler 1 is a cavity, the surface of the sampler is provided with a through hole 2, the air extraction component 5 and the gas storage component are connected with the sampler 1 through sampling pipelines 4, three-way valves 6 are arranged on the sampling pipelines 4, a first interface 601 and a second interface 602 of each three-way valve 6 are respectively connected with the sampler 1 and the air extraction component 5, a third interface 603 is connected with the gas storage component, and one-way valves 7 are arranged at the positions of the first interface 601 and the third interface 603.
When the sampling device is specifically used, firstly, the one-way valve 7 of the first interface 601 is conducted, the one-way valve 7 of the third interface 603 is closed, at the moment, the first interface 601 end and the second interface 602 end of the three-way valve 6 are communicated, namely, a passage is formed between the sampler 1 and the air extraction component 5, the sampler 1 is placed in an oral cavity, teeth bite the rear end of the sampler 1, the baffle 3 is assisted to form an oral cavity closed state, oral cavity air is extracted through the air extraction component 5, the oral cavity air enters the sampling pipeline 4 through the through hole 2 on the surface of the sampler 1, and the oral cavity air enters the air extraction component 5 through the passage formed by the sampling pipeline 4 and the three-way valve 6 for temporary storage, so that sampling of a sample is completed; then the one-way valve 7 of the first interface 601 is closed, the one-way valve 7 of the third interface 603 is conducted, at the moment, the third interface 603 end of the second interface 602 end of the three-way valve 6 is communicated, namely, a passage is formed between the air extraction part 5 and the air storage part, the air extraction part 5 reversely releases the collected oral gas sample, and the oral gas sample enters the air storage part connected with the third interface 603 end through the sampling pipeline 4 to finish sample transfer. Through setting up three-way valve 6, realize the integration operation of sample collection and sample transfer, reduce gaseous mixing, sampling process is simple and convenient.
As shown in fig. 1, the sampler 1 is spherical, columnar, square, stepped, or nipple-shaped. The placement position of the spherical sampler 1 is not limited, the spherical through holes 2 are convenient to arrange, oral gas can be extracted from multiple angles, the columnar shape can be prismatic or cylindrical, the front end is provided with an arc surface, and discomfort caused after placement is prevented; the nipple shape is preferable, the nipple shape is more in accordance with physiological structure, and the comfort level in the sampling process can be greatly improved. The length of the sampler 1 is 2cm-3cm, and the length is set to be suitable for the size of the oral cavity of a human body, so that discomfort of the human body caused by the fact that the sampler is too far deep into the oral cavity is avoided; the model numbers with different sizes can be set, so that the adaptability of use of different age groups or different crowds is ensured.
The through holes 2 are round, elliptic or polygonal, the number of the through holes 2 is a plurality of, and the through holes 2 are arranged at intervals.
As shown in fig. 3, the through hole 2 is disposed at the upper part of the sampler 1, and the sampler 1 of various shapes is provided with the through hole 2 only at the upper part, so that the lower through hole 2 can be prevented from contacting the tongue or other tissues of the inner wall of the oral cavity, and the through hole 2 is prevented from being blocked by saliva, soft tissues and the like, so that the sampling process is smooth.
In order to ensure the safety of human bodies, the sampler 1 is made of food-grade silica gel, food-grade rubber or PTFE; the sampling tube 4 can be a commonly used medical hose, and the sampling device is disposable in order to ensure sanitation and prevent cross infection.
As shown in fig. 1 and 3, a baffle 3 is arranged at the rear end of the sampler 1, specifically, the baffle 3 can be directly and fixedly connected with the sampler 1, and a through hole communicated with the sampler 1 is formed in the middle of the baffle 3; the device can also be an independent plate body, one side of the plate body is connected with a sampling tube, and the other end of the plate body is detachably connected with the sampler 1; the sampling tube can be directly fixedly connected with the sampling tube, and the sampler 1 is detachably connected to the other side of the sampling tube. The detachable mode is a clamping connection mode, a magnetic attraction mode and other connection modes. The baffle 3 can form a local airtight state of the oral cavity, and external air is prevented from being mixed in the sampling process.
The air extraction component 5 is a needle cylinder, the needle cylinder is matched with a micro suction pump or the needle cylinder is matched with a negative pressure device, when the needle cylinder is singly used, manual operation is carried out, oral cavity air is extracted through a back-pulling piston, and the collected oral cavity air is discharged by pushing the piston forwards; the syringe is preferably matched with the micro suction pump, and is arranged on the micro suction pump, so that automatic standard sampling can be realized, the device is suitable for a scene of frequent oral gas collection, the working intensity is reduced, the speed of oral gas suction is controlled, and errors caused by uneven suction speed during manual sampling are avoided; the syringe may also be placed in a negative pressure device to create a negative pressure or to pressurize to control the aspiration action of the syringe.
The gas storage part can be a gas collection bag or a gas collection tube for storing oral gas, the gas collection tube can be a thermal desorption tube, so that a sample can be conveniently stored and collected for a long time, the oral gas can be pre-enriched, and trace VOCs in the oral air can be detected. The connection mode of the gas storage part and the sampling pipeline 4 in the application is the existing connection mode. For example, the rubber plug of the infusion bottle and the needle inserting structure of the infusion apparatus can also be that the sampling pipeline 4 is a rubber pipe, and is directly sleeved on gas storage components such as a gas collecting bag, a gas collecting pipe and the like for use.
A drying or filtering means is also provided between the air reservoir and the third interface 603. The gas storage means are dried or filtered before the gas collection, and the collection means are sufficiently dry or filter out unwanted substances.
Claims (10)
1. The utility model provides a gaseous sampling device in oral cavity, a serial communication port, including inside for cavity and surface be equipped with sample thief (1) of through-hole (2), all be connected with sample thief (1) through sampling pipeline (4) bleed part (5) and gas storage part, be provided with three-way valve (6) on sampling pipeline (4), sample thief (1) and gas bleed part (5) are connected respectively to first interface (601) and second interface (602) of three-way valve (6), gas storage part is connected in third interface (603), first interface (601) and third interface (603) department are equipped with check valve (7).
2. The oral gas sampling device according to claim 1, wherein the sampler (1) is spherical, cylindrical, square, bench or nipple shaped.
3. The oral gas sampling device according to claim 1 or 2, wherein the through hole (2) is circular, oval or polygonal.
4. The oral gas sampling device according to claim 1 or 2, wherein the through hole (2) is provided in an upper portion of the sampler (1).
5. An oral gas sampling device according to claim 3, wherein the sampler (1) is of food grade silicone, food grade rubber or PTFE material.
6. The oral gas sampling device according to claim 1, 2 or 5, wherein the rear end of the sampler (1) is further provided with a baffle (3).
7. The oral gas sampling device according to claim 4, wherein the rear end of the sampler (1) is provided with a baffle (3).
8. The oral gas sampling device according to claim 1, 2, 5 or 7, wherein the pumping means (5) is a syringe, a syringe with a micro-suction pump or a syringe with a negative pressure device.
9. The sampling device according to claim 8, characterized in that a drying or filtering means is also provided between the gas storage means and the third interface (603).
10. The oral gas sampling device of claim 1, 2, 5, 7, or 9, wherein the gas storage component is a gas collection pouch or a gas collection tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321698994.XU CN220477609U (en) | 2023-06-30 | 2023-06-30 | Oral cavity gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321698994.XU CN220477609U (en) | 2023-06-30 | 2023-06-30 | Oral cavity gas sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220477609U true CN220477609U (en) | 2024-02-13 |
Family
ID=89839035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321698994.XU Active CN220477609U (en) | 2023-06-30 | 2023-06-30 | Oral cavity gas sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220477609U (en) |
-
2023
- 2023-06-30 CN CN202321698994.XU patent/CN220477609U/en active Active
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