CN117045231A - Turbine type multifunctional spirometer - Google Patents
Turbine type multifunctional spirometer Download PDFInfo
- Publication number
- CN117045231A CN117045231A CN202311170853.5A CN202311170853A CN117045231A CN 117045231 A CN117045231 A CN 117045231A CN 202311170853 A CN202311170853 A CN 202311170853A CN 117045231 A CN117045231 A CN 117045231A
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- Prior art keywords
- turbine
- carbon dioxide
- spirometer
- light detection
- air pump
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- 238000001514 detection method Methods 0.000 claims abstract description 80
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 78
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 39
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 39
- 238000005259 measurement Methods 0.000 claims abstract description 20
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 36
- 238000000034 method Methods 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 8
- 230000029058 respiratory gaseous exchange Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000004098 cellular respiration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000013123 lung function test Methods 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/082—Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/091—Measuring volume of inspired or expired gases, e.g. to determine lung capacity
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pulmonology (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Physiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The application relates to a turbine type multifunctional spirometer which comprises a turbine, a turbine rotation signal acquisition module, a handheld shell, a controller, an air pump, a gas measurement cavity and a carbon dioxide concentration sensor, wherein the turbine and the turbine rotation signal acquisition module are both positioned in the handheld shell, one end of the air pump is connected with a gas output port of the handheld shell through a pipeline, the other end of the air pump is connected with the gas measurement cavity through a pipeline, and a detection end of the carbon dioxide concentration sensor is positioned in the gas measurement cavity; the controller is used for judging the starting time of receiving the exhaled air according to the output signal of the turbine rotation signal acquisition module, measuring the vital capacity, driving the air pump to be started, and acquiring the carbon dioxide concentration value of the exhaled air according to the output signal of the carbon dioxide concentration sensor. Compared with the prior art, the application realizes the purpose of simultaneously having the vital capacity and the CO 2 The concentration detection function has the advantages of simple structure, low price and the like.
Description
Technical Field
The application relates to the field of carbon dioxide measurement equipment, in particular to a turbine type multifunctional spirometer.
Background
End-tidal carbon dioxide is considered the sixth largest basic vital sign in parallel with body temperature, respiration, pulse, blood pressure, and arterial blood oxygen saturation. End-tidal carbon dioxide monitoring has been widely studied in recent years as a non-invasive technique and has been studied in a number of clinical and experimental settings worldwide, creating a number of insights.
The carbon dioxide value represents the end-tidal carbon dioxide partial pressure (PetCO 2), so PetCO2 is considered a non-invasive indicator of alveolar ventilation, with good correlation to arterial blood carbon dioxide partial pressure (PaCO 2) under physiological conditions. Thus, CO 2 Concentration plays an important role in medical diagnostics.
Human respiration has two important functions: absorbing oxygen and rejecting carbon dioxide. Carbon dioxide is a major metabolite of the human body, soluble in water, and has a partial pressure of about 40mmHg in blood. Carbon dioxide in the lungs accounts for about 5% of the exhaled gas volume. Oxygen is an important component of the respiratory system. All cellular respiration requires oxygen, the product of which is carbon dioxide; therefore, the carbon dioxide concentration generated by human respiration is also an important human index, and how to conveniently measure the carbon dioxide concentration of human respiration is a technical problem to be solved at present.
Disclosure of Invention
The application aims to overcome the defects of the prior art and provide the turbine type multifunctional spirometer which is convenient for measuring the carbon dioxide concentration of human breath.
The aim of the application can be achieved by the following technical scheme:
the utility model provides a multifunctional turbine spirometer, includes turbine, turbine rotation signal acquisition module, handheld shell, controller, air pump, gas measurement chamber and carbon dioxide concentration sensor, turbine and turbine rotation signal acquisition module all are located in the handheld shell, the one end of air pump passes through the gas delivery outlet of pipeline connection handheld shell, the other end passes through the pipeline connection gas measurement chamber, carbon dioxide concentration sensor's detection end is located in the gas measurement chamber;
the controller is respectively connected with the turbine rotation signal acquisition module, the air pump and the carbon dioxide concentration sensor and is used for judging the starting time of receiving the exhaled air according to the output signal of the turbine rotation signal acquisition module, carrying out vital capacity measurement, driving the air pump to be started and obtaining the carbon dioxide concentration value of the exhaled air according to the output signal of the carbon dioxide concentration sensor.
Further, the air pump is connected with the gas outlet of the handheld shell through a silica gel pipe, and one end of the silica gel pipe is located on the side face of the gas outlet.
Further, after judging that the starting time of the exhaled air is received, the controller drives the air pump to be started after a preset first time delay.
Further, the turbine rotation signal acquisition module comprises a first light detection component and a second light detection component, wherein the detection circuit of the first light detection component and the detection circuit of the second light detection component are both located in the rotation area of the turbine, and the detection circuit of the first light detection component is intersected with the detection circuit of the second light detection component.
Further, the first light detection assembly comprises a first infrared emitter and a first photodiode, and the first infrared emitter faces the first photodiode; the second light detection assembly comprises a second infrared emitter and a second photodiode, and the second infrared emitter faces the second photodiode.
Further, an intersection point formed between the detection line of the first light detection component and the detection line of the second light detection component is in a rotation area of the turbine, and a distance between the intersection point and a rotation center point of the turbine is in a range of 0.4-0.6r, wherein r is a rotation radius of the turbine.
Further, an included angle between the detection line of the first optical detection assembly and the detection line of the second optical detection assembly is within a range of 40-60 degrees.
Further, the first light detection component and the second light detection component are both connected with the controller, the controller respectively obtains the shielding starting time of the turbine blade according to the first light detection component and the second light detection component, and determines the rotation direction of the turbine blade according to the sequence of the shielding starting time obtained by the first light detection component and the second light detection component, so that whether the gas passing through the turbine is in the exhale direction or the inhale direction is judged.
Further, the controller is also connected with external equipment in a wireless communication mode.
Further, the gas measuring cavity is of a closed shell structure, and one side of the gas measuring cavity is provided with a one-way valve for deflation.
Compared with the prior art, the application has the following advantages:
(1) The scheme is improved in structure based on the spirometer, a silicone tube, an air pump, a gas measuring cavity and a carbon dioxide concentration sensor are added, and the exhaled gas is collected in the process of using the spirometer through the air pumpCollecting in a gas measuring cavity, measuring the carbon dioxide concentration of the gas in the gas measuring cavity by a carbon dioxide concentration sensor, and realizing the combination of vital capacity and CO 2 The concentration detection function has the advantages of simple structure, low price and the like.
(2) The scheme is suitable for popularization and application in families, clinics and the like; the two phases of respiration can be monitored simultaneously, and the lung function test can be more comprehensively assisted by a user.
(3) The turbine rotation signal acquisition module that constitutes by two sets of infrared transmitter and photodiode that this scheme provided sets up in different angles and positions, in turbine blade rotation process, can receive the induction signal successively, can confirm turbine blade's rotation direction.
Drawings
FIG. 1 is a schematic diagram of a data flow processed by a controller of a turbo type multifunctional spirometer according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a turbine rotation signal acquisition module according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a connection circuit of a silicone tube, an air pump and a gas measurement chamber according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an airflow transmission path of a turbo type multifunctional spirometer according to an embodiment of the present application;
in the figure, 1, a handheld shell, 2, a gas measuring cavity, 3, an air pump, 4, a silica gel tube, 5, a turbine, 6, a carbon dioxide concentration sensor, 7, a controller, 801, a first infrared emitter, 802, a first photodiode, 811, a second infrared emitter, 812 and a second photodiode.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present application.
It should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Example 1
As shown in fig. 1 and 3, the present embodiment provides a turbine type multifunctional spirometer, which includes a turbine 5, a turbine rotation signal acquisition module, a handheld housing 1, a controller 7, an air pump 3, a gas measurement cavity 2 and a carbon dioxide concentration sensor 6, wherein the turbine 5 and the turbine rotation signal acquisition module are both located in the handheld housing 1, one end of the air pump 3 is connected with a gas output port of the handheld housing 1 through a pipeline, the other end is connected with the gas measurement cavity 2 through a pipeline, and a detection end of the carbon dioxide concentration sensor 6 is located in the gas measurement cavity 2;
the controller 7 is respectively connected with the turbine rotation signal acquisition module, the air pump 3 and the carbon dioxide concentration sensor 6, and is used for judging the starting time of receiving the exhaled air according to the output signal of the turbine rotation signal acquisition module, carrying out the vital capacity measurement, driving the air pump 3 to be started and obtaining the carbon dioxide concentration value of the exhaled air according to the output signal of the carbon dioxide concentration sensor 6.
Preferably, as shown in fig. 4, the air pump 3 is connected with the air outlet of the handheld shell 1 through a silicone tube 4, and one end of the silicone tube 4 is located at the side surface of the air outlet. By the side flow method, the air pump 3 is used to convey the exhaled air of the human body into the air measuring cavity 2. The method has the advantage that only a small amount of gas is needed to measure the CO 2 Concentration, and does not require a closed breathing circuit.
In the using process, the gas breathed out by a human body enters the turbine 5 to drive the turbine blades to rotate, meanwhile, the turbine rotation signal acquisition module recognizes the rotation of the turbine blades and collects signals to be transmitted to the controller 7, after the gas flows out of the rear side of the turbine, the gas pump 3 obtains the signals of the controller 7 to start working, and the connected silica gel tube 4 pumps the gas into the tube from the side edge and sends the gas to the CO 2 The sensor is positioned in the gas measuring cavity 2 for detection, and CO is detected after the detection is completed 2 The sensor transmits the signal to the controller 7 for processing to obtain the vital capacity value and CO 2 Concentration.
The scheme is improved on the basis of a spirometer, and a silicone tube 4, an air pump 3, a gas measurement cavity 2 and a carbon dioxide concentration sensor 6 are added, so that the lung is used by the air pump 3The expired gas is collected in the gas measuring cavity 2 during the process of the flowmeter, and the carbon dioxide concentration of the gas in the gas measuring cavity 2 is measured by the carbon dioxide concentration sensor 6, so that the device has the capacity of vital capacity and CO at the same time 2 The concentration detection function has the advantages of simple structure, low price and the like.
In the present embodiment, for measuring CO 2 The concentration sensor is located in a single sealing space, the middle of the cover and the bottom of the sealing space is sealed by a sealing ring, and one side of the sealing space is provided with a one-way valve for air release.
The controller 7 may be a micro controller with control and data processing functions, and in this embodiment, the controller 7 uses an Arduino Uno development board.
As a preferred embodiment, the controller 7 loads the program to receive and process both the turbine rotation signal acquisition module and the CO 2 The sensor signal and output signal to operate the air pump 3. It should be noted that: when the human body inhales, the area where the turbine 5 is located still has fresh air. When exhaling, if the air pump 3 is simultaneously turned on, the remaining fresh air in the turbine 5 is delivered by the air pump 3 into the gas measuring chamber 2. This means that there is a mixture in the gas measurement chamber 2 which will be exhaled air and fresh air, which can lead to inaccurate measurements. To solve this problem of fresh air, the controller 7 sends a delay signal to the air pump 3 to delay its opening.
As a preferred embodiment, the controller 7 is also connected to external devices in wireless communication, and the controller 7 can communicate the vital capacity value and the CO 2 The concentration signal is transmitted to the APP of the smart phone through the Bluetooth function for display.
As a preferred embodiment, the turbine rotation signal collection module includes a first optical detection component and a second optical detection component, where the detection line of the first optical detection component and the detection line of the second optical detection component are both located in the rotation area of the turbine 5, and the detection line of the first optical detection component intersects with the detection line of the second optical detection component.
As shown in fig. 2, the first light detecting assembly includes a first infrared emitter 801 and a first photodiode 802, the first infrared emitter 801 facing the first photodiode 802; the second light detection assembly includes a second infrared emitter 811 and a second photodiode 812, the second infrared emitter 811 being opposite the second photodiode 812.
The intersection point formed between the detection line of the first light detection assembly and the detection line of the second light detection assembly is within the rotation region of the turbine 5, and the distance between the intersection point and the rotation center point of the turbine 5 is within the range of 0.4-0.6r, preferably 0.5r, where r is the rotation radius of the turbine 5.
The included angle between the detection line of the first light detection component and the detection line of the second light detection component is within the range of 40-60 degrees, preferably 50 degrees.
The first light detection component and the second light detection component are both connected with the controller 7, the controller 7 respectively obtains the shielding starting time of the blades of the turbine 5 according to the first light detection component and the second light detection component, and the rotation direction of the blades of the turbine 5 is determined according to the sequence of the shielding starting time obtained by the first light detection component and the second light detection component, so that whether the gas passing through the turbine 5 is in the exhaling direction or the inhaling direction is judged.
Since the placement positions of the two sets of light detection assemblies are different, the start times of shielding of the turbine blades are also different, and therefore, by comparing the start receiving times of the two photodiodes, the rotation direction of the turbine blades can be determined.
The foregoing describes in detail preferred embodiments of the present application. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the application by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides a multifunctional turbine spirometer which is characterized in that, including turbine (5), turbine rotation signal acquisition module, handheld shell (1), controller (7), air pump (3), gas measurement chamber (2) and carbon dioxide concentration sensor (6), turbine (5) and turbine rotation signal acquisition module all are located in handheld shell (1), the one end of air pump (3) is through the gas delivery outlet of pipeline connection handheld shell (1), and the other end is through the pipeline connection gas measurement chamber (2), the detection end of carbon dioxide concentration sensor (6) is located in gas measurement chamber (2);
the controller (7) is respectively connected with the turbine rotation signal acquisition module, the air pump (3) and the carbon dioxide concentration sensor (6) and is used for judging the starting time of receiving the exhaled air according to the output signal of the turbine rotation signal acquisition module, carrying out the vital capacity measurement, driving the air pump (3) to be started and obtaining the carbon dioxide concentration value of the exhaled air according to the output signal of the carbon dioxide concentration sensor (6).
2. The multifunctional turbine spirometer according to claim 1, characterized in that the air pump (3) is connected to the gas outlet of the hand-held housing (1) by means of a silicone tube (4), one end of the silicone tube (4) being located at the side of the gas outlet.
3. A turbo type multifunctional spirometer according to claim 1, characterized in that said controller (7) drives the air pump (3) to be turned on after a preset first delay after judging that the starting time of the expired air is received.
4. The multifunctional spirometer according to claim 1, characterized in that said turbine rotation signal acquisition module comprises a first light detection assembly and a second light detection assembly, the detection lines of said first light detection assembly and of said second light detection assembly being both located in the rotation area of said turbine (5), the detection lines of said first light detection assembly intersecting the detection lines of said second light detection assembly.
5. The multifunctional turbine spirometer of claim 4, wherein said first light detection assembly comprises a first infrared emitter (801) and a first photodiode (802), said first infrared emitter (801) being opposite said first photodiode (802); the second light detection assembly comprises a second infrared emitter (811) and a second photodiode (812), wherein the second infrared emitter (811) faces the second photodiode (812).
6. The multifunctional spirometer of claim 4, characterized in that an intersection point formed between the detection line of the first light detection assembly and the detection line of the second light detection assembly is within a rotation area of the turbine (5), a distance between the intersection point and a rotation center point of the turbine (5) being within a range of 0.4-0.6r, where r is a rotation radius of the turbine (5).
7. The multifunctional turbine spirometer of claim 4, wherein an angle between a detection line of said first light detection assembly and a detection line of said second light detection assembly is within a range of 40 degrees to 60 degrees.
8. The multifunctional turbine spirometer according to claim 4, wherein the first light detecting component and the second light detecting component are both connected with the controller (7), the controller (7) respectively obtains the shielding start time of the blades of the turbine (5) according to the first light detecting component and the second light detecting component, and determines the rotation direction of the blades of the turbine (5) according to the sequence of the shielding start time obtained by the first light detecting component and the second light detecting component, so as to judge whether the gas passing through the turbine (5) is in the exhaling direction or the inhaling direction.
9. A turbo type multifunctional spirometer according to claim 1, characterized in that said controller (7) is also connected in wireless communication to an external device.
10. The multifunctional turbine spirometer according to claim 1, characterized in that the gas measuring chamber (2) is of a closed housing structure, and that one side of the gas measuring chamber (2) is provided with a one-way valve for deflation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311170853.5A CN117045231A (en) | 2023-09-12 | 2023-09-12 | Turbine type multifunctional spirometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311170853.5A CN117045231A (en) | 2023-09-12 | 2023-09-12 | Turbine type multifunctional spirometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117045231A true CN117045231A (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311170853.5A Pending CN117045231A (en) | 2023-09-12 | 2023-09-12 | Turbine type multifunctional spirometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117045231A (en) |
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2023
- 2023-09-12 CN CN202311170853.5A patent/CN117045231A/en active Pending
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