CN112754532A - Expiration collecting device - Google Patents
Expiration collecting device Download PDFInfo
- Publication number
- CN112754532A CN112754532A CN202011626144.XA CN202011626144A CN112754532A CN 112754532 A CN112754532 A CN 112754532A CN 202011626144 A CN202011626144 A CN 202011626144A CN 112754532 A CN112754532 A CN 112754532A
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- air
- breath
- buffer chamber
- communicated
- exhaled
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- 238000001514 detection method Methods 0.000 claims abstract description 41
- 230000002457 bidirectional effect Effects 0.000 claims description 12
- 238000012360 testing method Methods 0.000 abstract description 7
- 210000002345 respiratory system Anatomy 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 39
- 238000010586 diagram Methods 0.000 description 8
- 230000003111 delayed effect Effects 0.000 description 3
- 230000003902 lesion Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B2010/0083—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements for taking gas samples
- A61B2010/0087—Breath samples
Abstract
The invention provides a breath collecting device which is used for collecting exhaled gas and transmitting the exhaled gas to a detection device for detection. The exhaled air can be stored for a longer time by the exhaled air collecting device, so that the exhaled air to be detected can be conveniently extracted; the front section gas of the exhaled breath, namely the gas in the mouth and nose can be completely eliminated, so that the collected gas is completely generated by the inner respiratory tract; the exhaled air to be tested can be temporarily stored, so that the exhaled air is stably output for a long time during testing, and the operation difficulty of a user can be reduced.
Description
Technical Field
The present invention relates to an expired air collecting apparatus.
Background
Because some specific gases can be exhausted from the human body only through the exhaled gases and the specific gases can be generated only when some specific organs in the respiratory system of the human body are diseased, the exhaled gases can be extracted and detected to judge which exhaled organs or parts of the human body are diseased. Through a series of sensors, the analysis result is converted into an electric signal, so that whether the lesion occurs or not and the degree of the lesion are deduced.
However, the detection of the sensor has delayed feedback, the gas to be detected must be continuously supplied, and the patient breathes out the gas for a long time to cause trouble to the patient; moreover, the object of the test does not contain the gas in the mouth and nose area, so it is necessary to exhaust the gas in the front segment of the exhaled gas of the human body, because the gas in these areas will interfere with the experimental result, making the test result inaccurate, therefore, a set of device for collecting the exhaled gas of the human body is needed, which has the following points:
1. the exhaled air at the front section in the exhaled air is removed, so that the air is prevented from interfering the experimental result;
2. a large amount of gas is exhaled by a human body in a short time, only a small part of gas needs to be collected during testing, and the gas to be tested is slowly extracted for a long time, so that the exhaled gas needs to be temporarily stored in a buffer area.
In the existing products in the market, the users find that the products can only partially meet the first key point, and only the interference is reduced as much as possible but cannot be completely eliminated, so that a set of system can meet the two key elements, and the number of components and the volume of the system are reduced as much as possible by a reasonable combination method.
Disclosure of Invention
The invention aims to provide a breath collecting device, which aims to solve the problems that the existing device is easily interfered by outside air and a user cannot continuously exhale the breath.
In order to achieve the above object, the present invention provides an expired air collecting device for collecting expired air and transmitting the expired air to a detecting device for detection, the expired air collecting device includes an expired air collecting channel, a buffer chamber communicated with the expired air collecting channel, and a power device, the buffer chamber is communicated with the outside air and the detecting device, the power device is used for driving the air in the expired air collecting channel to enter the buffer chamber and the air in the buffer chamber to enter the detecting device, the expired air collecting channel includes a first pipe and a second pipe with a diameter smaller than that of the first pipe, and the buffer chamber is connected to a side wall of one end of the first pipe close to the second pipe.
As a further improvement of the present invention, the buffer chamber has an air inlet communicating with the exhaled breath collection passage and an air outlet communicating with the outside air.
As a further improvement of the present invention, the breath collecting device further comprises a first switching device, and the first switching device comprises a first air path communicating the breath collecting channel with the air inlet of the buffer chamber, and a second air path communicating the air inlet of the buffer chamber and the detecting device.
As a further improvement of the present invention, the power unit is disposed between the first switching unit and the air intake.
As a further improvement of the invention, the power device is communicated with the air outlet.
As a further improvement of the invention, the breath collecting device further comprises a second switching device, the power device is communicated with the air outlet and the second switching device, and the second switching device comprises a third air passage communicated with the power device and the outside air and a fourth air passage communicated with the power device and the detection device.
As a further improvement of the invention, the power device is a bidirectional air pump.
As a further improvement of the present invention, the power device includes a first power source and a second power source, the first power source communicates the exhaled breath collecting duct and the air inlet, and the second power source communicates the air inlet and the detection device.
As a further improvement of the invention, an S-shaped air passage communicated with the air inlet and the air outlet is arranged in the buffer chamber.
As a further improvement of the present invention, the expiratory collector duct includes a connecting duct communicating the first duct and the second duct.
The invention has the beneficial effects that: according to the expired air collecting device, the expired air can be stored for a longer time by arranging the expired air collecting channels with the changed pipe diameters, and the expired air to be detected can be conveniently extracted; by setting the control function of starting the power source to exhaust in a delayed manner, the front-section gas of the exhaled air, namely the gas in the mouth nose, can be completely eliminated, so that the collected gas is completely generated by the inner respiratory tract; in addition, the exhaled gas to be tested can be temporarily stored by arranging the buffer chamber, the exhaled gas is stably output for a long time during testing, and the operation difficulty of a user can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of an expired air collection device according to a first embodiment of the present invention in a gas collection state;
fig. 2 is a schematic structural diagram of an expired air collecting apparatus according to a first embodiment of the present invention in a detection state;
fig. 3 is a schematic structural diagram of a breath collection device according to a second embodiment of the present invention in a gas collection state;
fig. 4 is a schematic structural diagram of the breath collection apparatus according to the second embodiment of the invention in a detection state;
fig. 5 is a schematic structural view of an expired air collection apparatus according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a breath collection device according to a fourth embodiment of the present invention in a gas collection state;
fig. 7 is a schematic structural diagram of an expired air collection apparatus according to a fourth embodiment of the present invention in a detection state;
fig. 8 is a schematic structural diagram of a fifth exhalation collecting device of the embodiment of the invention in a gas collection state;
fig. 9 is a schematic structural diagram of a fifth breath collection device according to an embodiment of the invention in a detection state.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 9, the breath collecting device 100 of the present invention is used to collect the exhaled breath and transmit the collected breath to the detecting device 200 for detection.
The breath collecting device 100 comprises a breath collecting channel 1, a buffer chamber 2 communicated with the breath collecting channel 1 and a power device 3.
The expiration collecting channel 1 comprises a first pipeline 11, a second pipeline 12 with the diameter smaller than that of the first pipeline 11, and a connecting pipeline 13 for communicating the first pipeline 11 and the second pipeline 12. A user inhales from the side of the first pipe 11 remote from the second pipe 12 and then discharges from the second pipe 12.
The buffer chamber 2 is connected to a side wall of the first pipe 11 near one end of the second pipe 12, where the flow of the exhaled breath of the user is blocked and the remaining time is longest.
The buffer chamber 2 communicates with the outside air and the detection device 200. Further, the buffer chamber 2 has an air inlet 21 and an air outlet 22, the air inlet 21 is communicated with the exhaled air collecting channel 1, and the air outlet 22 is communicated with the outside air. An S-shaped air channel 23 which is communicated with the air inlet 21 and the air outlet 22 is arranged in the buffer chamber 2.
On the one hand, the buffer chamber 2 can collect the exhaled air entering from the exhaled air collecting channel 1 and use this part of the air to discharge the original air in the buffer to the outside air. When enough exhaled air is collected, the exhaled air in the buffer is transmitted to the detection device 200 for communication, and the exhaled air is detected. The volume of the buffer chamber 2 is greater than the volume of the exhaled breath required for the test.
The power device 3 is used for driving the air in the expiration collecting channel 1 to enter the buffer chamber 2 and the air in the buffer chamber 2 to enter the detection device 200.
The present invention will be described in detail with reference to the following examples.
The first embodiment is as follows:
as shown in fig. 1 to 2, the exhalation collecting apparatus 100 further includes a first switching apparatus 4.
The first switching device 4 comprises a first air path 41 for communicating the expiration collecting channel 1 with the air inlet 21 of the buffer chamber 2, and a second air path 42 for communicating the air inlet 21 of the buffer chamber 2 and the detection device 200.
The power unit 3 is disposed between the first switching unit 4 and the air intake 21. In the present embodiment, the power device 3 is a bidirectional air pump. Of course, two air pumps may be provided in other embodiments.
In this embodiment, the first air path 41 is provided with a first one-way valve 411 for transmitting the exhaled air from the exhaled air collecting channel 1 to the power device 3, and the second air path 42 is provided with a second one-way valve 421 for transmitting the exhaled air from the power device 3 to the detection device 200.
As shown in fig. 1, in the gas collecting state of the exhaled breath collecting apparatus 100, the bidirectional gas pump is started to suck the exhaled breath out of the exhaled breath collecting channel 1, and the exhaled breath is transmitted to the buffer chamber 2 through the first one-way valve 411, and the original gas in the buffer chamber 2 is gradually discharged from the gas outlet 22.
As shown in fig. 2, in the detection state of the exhaled breath collecting apparatus 100, the bidirectional air pump is activated to suck the exhaled breath out of the buffer chamber 2, and the exhaled breath is transmitted to the detection apparatus 200 through the second one-way valve 421, and the detection apparatus 200 can detect the exhaled breath.
Furthermore, the two-way air pump has different working powers in two states, the two-way air pump adopts a large-flow mode in the gas collection state, and the two-way air pump adopts a small-flow mode in the detection state.
Example two:
as shown in fig. 3 to 4, in this embodiment, the rest of the structure is the same as that in the first embodiment, and is not described herein again, except that the switching between the first air passage 43 and the second air passage 44 is realized by an electromagnetic valve or other mechanical/electronic switching element, instead of a one-way valve.
As shown in fig. 3, in the gas collecting state of the exhaled breath collecting apparatus 100, the bidirectional gas pump is started to suck the exhaled breath out of the exhaled breath collecting channel 1, and the exhaled breath is transmitted to the buffer chamber 2 through the first gas path 43, and the original gas in the buffer chamber 2 is gradually discharged from the gas outlet 22.
As shown in fig. 4, in the detection state of the exhaled breath collecting apparatus 100, the bidirectional air pump is activated to suck the exhaled breath out of the buffer chamber 2, and the exhaled breath is transmitted to the detection apparatus 200 through the second air path 44, and the detection apparatus 200 can detect the exhaled breath.
Furthermore, the two-way air pump has different working powers in two states, the two-way air pump adopts a large-flow mode in the gas collection state, and the two-way air pump adopts a small-flow mode in the detection state.
Example three:
as shown in fig. 5, in the present embodiment, the rest of the structure is the same as that in the first embodiment, and the description thereof is omitted, except that the power device 3 is communicated with the air outlet 22 and the outside air.
When the breath collection device 100 is in the detection state, the bidirectional air pump pumps out the original air in the buffer chamber 2 to form negative pressure, thereby achieving the effect of sucking out the air from the breath collection channel 1 to the buffer chamber 2.
Example four:
as shown in fig. 6 to 7, in the present embodiment, the breath collection apparatus 100 further includes a second switching device 5.
The second switching device 5 includes a third air passage 51 for communicating the power unit 3 with the outside air, and a fourth air passage 52 for communicating the power unit 3 with the detection device 200.
The power device 3 is communicated with the air outlet 22 and the second switching device 5.
In the present embodiment, the power device 3 is a bidirectional air pump. Of course, two air pumps may be provided in other embodiments.
As shown in fig. 6, in the air collecting state of the exhaled air collecting device 100, the bidirectional air pump is activated to suck the exhaled air from the exhaled air collecting channel 1 to the buffer chamber 2, and simultaneously, the air in the buffer chamber 2 is discharged from the third air channel 51 to the outside air.
As shown in fig. 7, in the detection state of the breath collection apparatus 100, the bidirectional air pump is activated to suck the exhaled breath from the buffer chamber 2, and the exhaled breath is transmitted to the detection apparatus 200 through the fourth air path 52, and the detection apparatus 200 can detect the exhaled breath.
Furthermore, the two-way air pump has different working powers in two states, the two-way air pump adopts a large-flow mode in the gas collection state, and the two-way air pump adopts a small-flow mode in the detection state.
In this embodiment, the third air path 51 and the fourth air path 52 are switched by a solenoid valve or other mechanical/electronic switching elements. In other embodiments, the second switching device 5 may also adopt a one-way valve structure as in the first embodiment.
Example five:
as shown in fig. 8 and 9, in the present embodiment, the power device 3 includes a first power source 31 and a second power source 32, the first power source 31 communicates the exhaled breath collecting duct 1 with the air inlet 21, and the second power source 32 communicates the air inlet 21 with the detection device 200.
As shown in fig. 8, in the air collecting state of the exhaled breath collecting device 100, the first power source 31 is activated to suck the exhaled breath from the exhaled breath collecting channel 1 to the buffer chamber 2, and simultaneously discharge the air in the buffer chamber 2 to the outside air.
As shown in fig. 9, in the detection state of the breath collection apparatus 100, the bidirectional air pump is activated to suck the exhaled breath from the buffer chamber 2 to the detection apparatus 200, and the detection apparatus 200 can detect the exhaled breath.
In this embodiment, the first power source 31 is a large flow power source, and the second power source 32 is a small flow power source.
According to the expired air collecting device 100, the expired air collecting channel 1 with the pipe diameter changed is arranged, so that the expired air can be stored for a longer time, and the expired air to be detected can be conveniently extracted; by setting the control function of starting the power source to exhaust in a delayed manner, the front-section gas of the exhaled air, namely the gas in the mouth nose, can be completely eliminated, so that the collected gas is completely generated by the inner respiratory tract; in addition, the exhaled air to be tested can be temporarily stored by arranging the buffer chamber 2, the exhaled air is stably output for a long time during testing, and meanwhile, the operation difficulty of a user can be reduced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a expiration collection device for collect expired gas and convey detection to detection device, its characterized in that: expiration collection device including exhale the collection way, with buffer chamber, the power device that exhale the collection way intercommunication, buffer chamber and outside air and detection device intercommunication, power device is used for the drive to exhale the air admission buffer chamber in the collection way and buffer chamber air admission detection device, exhale the collection way and include first pipeline, diameter and be less than the second pipeline of first pipeline, the buffer chamber with be close to on the first pipeline the lateral wall of the one end of second pipeline is connected.
2. The breath collection device of claim 1, wherein: the buffer chamber is provided with an air inlet and an air outlet, the air inlet is communicated with the expiration collecting channel, and the air outlet is communicated with the outside air.
3. The breath collection device of claim 2, wherein: the breath collecting device further comprises a first switching device, and the first switching device comprises a first air path communicated with the breath collecting channel and the air inlet of the buffer chamber, and a second air path communicated with the air inlet of the buffer chamber and the detection device.
4. The breath collection device of claim 3, wherein: the power device is arranged between the first switching device and the air inlet.
5. The breath collection device of claim 3, wherein: the power device is communicated with the air outlet.
6. The breath collection device of claim 2, wherein: the breath collecting device further comprises a second switching device, the power device is communicated with the air outlet and the second switching device, and the second switching device comprises a third air path communicated with the power device and the outside air and a fourth air path communicated with the power device and the detection device.
7. The breath collection apparatus of any of claims 1 to 6, wherein: the power device is a bidirectional air pump.
8. The breath collection device of claim 2, wherein: the power device comprises a first power source and a second power source, the first power source is communicated with the expiration collecting channel and the air inlet, and the second power source is communicated with the air inlet and the detection device.
9. The breath collection device of claim 2, wherein: and an S-shaped air passage communicated with the air inlet and the air outlet is arranged in the buffer chamber.
10. The breath collection device of claim 1, wherein: the expiration collecting channel comprises a connecting pipeline which is communicated with the first pipeline and the second pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011626144.XA CN112754532A (en) | 2020-12-31 | 2020-12-31 | Expiration collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011626144.XA CN112754532A (en) | 2020-12-31 | 2020-12-31 | Expiration collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112754532A true CN112754532A (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011626144.XA Pending CN112754532A (en) | 2020-12-31 | 2020-12-31 | Expiration collecting device |
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| CN (1) | CN112754532A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3622278A (en) * | 1969-04-21 | 1971-11-23 | Hittman Associates Inc | Method and means for breath analysis |
| US4248245A (en) * | 1978-04-15 | 1981-02-03 | Dragerwerk Aktiengesellschaft | Method and device for determining and separating the alveolar air proportion from the breathing air |
| US20060200037A1 (en) * | 2005-03-02 | 2006-09-07 | Falasco Marianne R | System and method for selectively collecting exhaled air |
| CN101221190A (en) * | 2007-01-11 | 2008-07-16 | Khn解决方案有限责任公司 | Self-evacuation, air-steady, illumination type gathering system used for exhalation analysis |
| US20100262034A1 (en) * | 2009-04-13 | 2010-10-14 | Tomohisa Kawata | Gas component detection device |
| DE102009038237A1 (en) * | 2009-08-20 | 2011-03-03 | Siemens Aktiengesellschaft | Device for measuring gas analytes in breath gas, has inlet opening and line system which stands in fluid connection with inlet opening, where line system has branch |
| US20140180156A1 (en) * | 2010-11-17 | 2014-06-26 | Georgia Tech Research Corporation | Aerosol collection devices and methods of use |
| CN104023632A (en) * | 2011-12-22 | 2014-09-03 | 艾罗克林有限公司 | Method and device for measuring a component in exhaled breath |
| CN212207388U (en) * | 2020-05-29 | 2020-12-22 | 河北工业大学 | Can cushion expiration sample injector and expiration analysis appearance that end tide expired |
-
2020
- 2020-12-31 CN CN202011626144.XA patent/CN112754532A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3622278A (en) * | 1969-04-21 | 1971-11-23 | Hittman Associates Inc | Method and means for breath analysis |
| US4248245A (en) * | 1978-04-15 | 1981-02-03 | Dragerwerk Aktiengesellschaft | Method and device for determining and separating the alveolar air proportion from the breathing air |
| US20060200037A1 (en) * | 2005-03-02 | 2006-09-07 | Falasco Marianne R | System and method for selectively collecting exhaled air |
| CN101221190A (en) * | 2007-01-11 | 2008-07-16 | Khn解决方案有限责任公司 | Self-evacuation, air-steady, illumination type gathering system used for exhalation analysis |
| US20100262034A1 (en) * | 2009-04-13 | 2010-10-14 | Tomohisa Kawata | Gas component detection device |
| DE102009038237A1 (en) * | 2009-08-20 | 2011-03-03 | Siemens Aktiengesellschaft | Device for measuring gas analytes in breath gas, has inlet opening and line system which stands in fluid connection with inlet opening, where line system has branch |
| US20140180156A1 (en) * | 2010-11-17 | 2014-06-26 | Georgia Tech Research Corporation | Aerosol collection devices and methods of use |
| CN104023632A (en) * | 2011-12-22 | 2014-09-03 | 艾罗克林有限公司 | Method and device for measuring a component in exhaled breath |
| CN212207388U (en) * | 2020-05-29 | 2020-12-22 | 河北工业大学 | Can cushion expiration sample injector and expiration analysis appearance that end tide expired |
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