CN110389198A - Exhaled gas apparatus for measuring concentration and method based on human-computer interaction module - Google Patents
Exhaled gas apparatus for measuring concentration and method based on human-computer interaction module Download PDFInfo
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- CN110389198A CN110389198A CN201810359987.4A CN201810359987A CN110389198A CN 110389198 A CN110389198 A CN 110389198A CN 201810359987 A CN201810359987 A CN 201810359987A CN 110389198 A CN110389198 A CN 110389198A
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Abstract
The present invention provides exhaled gas apparatus for measuring concentration and measurement method based on human-computer interaction module, including the gas path module and control module communicated with each other.The gas path module is made of sampling module and analysis module；The sampling module includes sequentially connected flow controller, triple valve one, gas buffer region, flow detector two and aspiration pump one, and the branch road between the gas buffer region and aspiration pump one is equipped with solenoid valve；The analysis module includes sequentially connected gas buffer region, triple valve two, gas humidity adjuster, aspiration pump two, gas concentration sensor.The present invention improves the success rate and accuracy of exhaled gas measurement of concetration, and acquires and handle by the data that big data platform measures all appts, to realize personalized medicine and the statistical analysis to similar disease.
Description
Technical field
The present invention relates to gas analysis fields, specially the exhaled gas apparatus for measuring concentration based on human-computer interaction module and
Method.
Background technique
Diagnosis patient's illnesses can be assisted by the measurement of characteristics of contaminated respiratory droplets gas componant and its concentration, monitor disease
Diseased state and observation therapeutic effect etc..
Expiration nitric oxide for inflammation in respiratory system diagnosis and monitoring, this is because endogenous gas signaling molecule NO
It is decomposed and is generated by cortex cell arginine deamination, the pro-inflammatory cytokines such as infection, allergy, wound can be by increasing inductivity
The expression of NO synzyme and cause NO concentration to significantly rise, and can be quantitative determined by expired air analysis.Pulmonary inflammatory disease is led
Cause that eNO is increased has: bronchial asthma, upper respiratory tract infection, bronchiectasis, fibrosing alveolitis.And exhaled NO
Concentration has significant decrease during steroid therapy, this has eNO detection means potentially in monitoring lung inflammation
Value.
Patent No. ZL201510880965.9 " a kind of measuring device of expiration nitric oxide and carbonomonoxide concentration " at present
Patent in, have associated description to the measuring device of Exhaled nitric oxide before, but have the following problems in this patent:
1) flow of aspiration pump one and aspiration pump two is not monitored in the patent, since the gas in characteristics of contaminated respiratory droplets gas is dense
Spend very low, mostly ppm or ppb(10-6Or 10-9) magnitude, during sampling and analysis, flowing gas state can direct shadow
Ring final measurement result；
2) in the prior art, single machine is not all connect with background server or big data platform, since the personalization of human body is poor
Different, the result of single measurement is difficult to provide accurate assessment to the health status of the user of service, is unfavorable for diagnosing it
And treatment；
3) in the prior art, data processing relies on operator and is summarized according to more instruments to the test result of a large amount of personnel
And statistics, it acquires similar Disease and grouies busy the initial data of outlet, then carry out data analysis, this method acquires data sample
Amount work take time and effort, and and do not have statistical significance, be unfavorable for medicine and the disease be compared, analyze and is studied.
In the prior art, single machine needs are connected with the end PC carries out information reading and display, during clinical use,
Tester need to detect to fixed location.Due to the mobile difficulty of inpatient, measurement is more inconvenient.
Summary of the invention
Present invention seek to address that above-mentioned items problem, improves the success rate and accuracy of exhaled gas measurement of concetration, and lead to
It crosses the data that big data platform measures all appts to acquire and handle, to realize personalized medicine and the system to similar disease
Credit analysis is counted, the used time is intended to provide one kind and can be not connected to the terminal devices such as external computer with the detection device of Portable movable, be allowed
It detects more convenient simple.
Exhaled gas apparatus for measuring concentration based on human-computer interaction module, including shell, enclosure interior are equipped with and communicate with each other
Gas path module, control module, handhold part is connected on the shell, housing side is equipped with dismountable placing part, and shell is another
Side is provided with ventilating part, and shell is connected with by a hose can be with the expiration entrance of human contact.
It further, further include terminal, the terminal includes being mounted on the positive interactive module of shell, being mounted on shell
Internal memory module and embedded system plate, the interactive module is communicated with embedded system plate, the memory module
Carry out data transmission with embedded system plate.
Further, the gas path module is made of sampling module and analysis module；The sampling module includes successively to connect
Flow controller, triple valve one, gas buffer region, the aspiration pump one connect is connected with flow detection dress on the flow controller
Set one, be connected with flow detector two on the aspiration pump one, one normal open both ends of the triple valve connection flow controller and
The switched path both ends of atmosphere, triple valve one connect the gentle volume buffer of flow controller, the gas buffer region and aspiration pump
Branch road between one is equipped with solenoid valve；The analysis module includes that sequentially connected gas buffer region, triple valve two, gas are wet
Spend adjuster, aspiration pump two, gas concentration sensor；The two normal open both ends of triple valve connect gas buffer region front end, gas
Humidistat, the switched path both ends of triple valve two connect pneumatic filter, gas humidity adjuster, and the aspiration pump two connects
It is connected to flow detector three.
Further, the control module includes master control borad, and master control borad is equipped with first for driving flow controller
Driver, for driving the third driver of aspiration pump two, is used for and other ends for driving the second driver of aspiration pump one
The communication unit of end equipment communication；The embedded system is Android, Windows or linous system.
Further, the communication unit includes the USB unit with printer communication, is communicated with mobile phone or tablet computer
WIFI unit, the mobile network's unit communicated with background server；The interactive module is OLED, LED or LCD display；Institute
Stating gas concentration sensor can be nitric oxide sensor, carbon monoxide transducer, hydrogen or hydrogen sulfide sensor, methane gas
Body sensor.
The present invention also provides a kind of exhaled gas concentration measuring method based on human-computer interaction module, process include,
1) sampling process: when user of service exhales beginning, flow controller, solenoid valve are opened, flow detector one is real-time
Expiratory gas flow is detected, and transfers data to flow controller, flow controller is by the data and preset target expiratory gas flow
It is compared, and adjusts the latus rectum of flow controller in time, guarantee that expiratory gas flow meets preset flow, collect presetting
Exhaled gas under flow when collection gas reaches preset vol, closes solenoid valve, flow controller in gas buffer region；
2) analytic process: to sampling process 1) in collected gas when analyzing, open aspiration pump two, analyzing gas
Triple valve two, gas humidity adjuster, flow detector three, aspiration pump two, gas concentration sensor are passed sequentially through in module, are read
The current value one for taking gas concentration sensor to measure, then switching three-way valve two, pass the gas through pneumatic filter, triple valve two,
Gas humidity adjuster, flow detector three, aspiration pump two, gas concentration sensor read what gas concentration sensor measured
Current value two；
3) concentration calculation: process of calculation analysis 2) in the difference of two current values that measures, divided by the spirit of gas concentration sensor
Sensitivity, as sampling process 1) in collected gas concentration.
Further, when user of service's expiration starts, triple valve one is normally opened access, opens flow controller, exhales at this time
Gas is expelled directly out atmosphere, and after the expiratory air of about 1-3 airway dead space volume capacity to be discharged, the first driver is according to preset flow
Feedback regulation is carried out to flow controller, when expiration meets preset flow, the switched path of triple valve one is opened, opens electromagnetism
Valve enters gas buffer region so that exhaling, and when expiration is not up to preset flow, maintains the normally opened access of triple valve one, so that
Expiration is discharged into atmosphere；User of service, which is repeated several times, to exhale, until expired volume is more than or equal to 2 times of gas buffer region volume, pass
Close the flow controller, solenoid valve.
Further, the sampling process 1) it further include acquisition to nasal cavity gas or airbag gas, process are as follows: open stream
Amount controller, solenoid valve and aspiration pump one are entered under test gas acquisition in gas buffer region with the flow of 5 ~ 20ml/s, until
The gas volume of acquisition is more than or equal to 2 times of gas buffer region volume.
It further, further include 4) big data processing: by the analysis of nitric oxide gas in user information and its expiration
Journey information and the concentration information finally calculated are stored in terminal, can read and analyze data by human-computer interaction module, can also lead to
It crosses communication unit and is sent to background server or big data platform, big data platform analyzes user's according to human medical model
Physical condition carries out medical diagnosis on disease, records in conjunction with the treatment of user, provides the personalized scheme of profession
Further, the aspiration pump one or aspiration pump two work according to preset flow, and pass through flow detector two
Or flow detector three detects its practical working flow, when detecting that real work flow deviation is more than 3 ~ 10%,
The control module respectively carries out the operating voltage of aspiration pump one or aspiration pump two by the second driver or third driver
Adjustment, so that the working flow of aspiration pump one or aspiration pump two meets preset flow.
Exhaled gas apparatus for measuring concentration and method provided by the invention based on human-computer interaction module, passes through flow detection
Device real-time detection expiratory gas flow, and transfer data to flow controller, flow controller is by the data and preset target
Expiratory gas flow is compared, and adjusts the latus rectum of expiration pipeline in time, guarantees that expiratory gas flow meets preset flow, and lead to
The switching for crossing triple valve one makes qualified exhale enter gas buffer region, until expired volume is more than or equal to 2 times of gas
Buffer area volume, the present invention do not need user of service and deliberately control respiration rate, adopt to the expiration of respiratory system patient and child
Collect more friendly, also improves sampling success rate, strengthen user experience, user of service's expiration state is more consistent, guarantees to finish
The accuracy of fruit.
The present invention is by increasing flow detector two and flow detector in aspiration pump one and two front end of aspiration pump
Three pairs of its practical working flows detect, and according to the real work flow detected, feed back to control module, and pass through second
Driver or third driver are respectively adjusted the operating voltage of aspiration pump one or aspiration pump two, so that aspiration pump one or pumping
The working flow of air pump two meets preset flow, maintains the stability of whole system class gas flowing, improves measurement accuracy.
The present invention passes through the concentration that by the analytic process information of under test gas in user information and its expiration and finally calculates
Information is stored in terminal, can read and analyze data by human-computer interaction module, backstage can also be sent to by communication unit and is taken
Business device or big data platform, big data platform analyze the physical condition of user according to human medical model, carry out disease and examine
It is disconnected, it is recorded in conjunction with the treatment of user, provides the personalized scheme of profession.Meanwhile cloud can also be to all collected numbers
According to being handled and being analyzed, be conducive to medicine to comparison, analysis and the research on disease progress statistical significance.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will be apparent, be illustrated.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.
Fig. 1 is measuring device overall structure diagram of the invention.
Fig. 2 is measuring device overall structure side schematic view of the invention
Fig. 3 is the function simplified schematic diagram of measuring device of the invention.
Fig. 4 is the schematic internal view of measuring device of the invention.
Fig. 5 is another schematic internal view of measuring device of the invention.
Fig. 6 is the flow chart of measurement method of the invention.
Fig. 7 is another flow chart of measurement method of the invention.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
As shown in Fig. 1 ~ 3, the present invention proposes the exhaled gas apparatus for measuring concentration based on human-computer interaction module, including shell
1, it is equipped with gas path module 10, the control module 20 communicated with each other inside shell 1, is connected with handhold part 2, shell 1 on the shell 1
Side is equipped with dismountable placing part 3, and 1 other side of shell is provided with ventilating part 4, and shell 1 is connected with by a hose 6 can be with human body
The expiration entrance 5 of contact.
The present invention proposes that the exhaled gas apparatus for measuring concentration based on human-computer interaction module further includes terminal 40, the end
End 40 includes the memory module 42 being mounted on the positive interactive module 41 of shell, installation inside housings and embedded system plate
43, the interactive module 41 is communicated with embedded system plate 43, and the memory module 42 is carried out with embedded system plate 43
Data transmission.
A kind of embodiment according to the present invention, as shown in figure 4, gas path module 10 is by sampling module 11 and analysis module 12
It constitutes, exhaled gas passes sequentially through flow controller 101, triple valve 1,104 and of gas buffer region in sampling module 11
Aspiration pump 1, wherein flow controller 101 is equipped with flow detector 1, and the normal open both ends of triple valve 1 connect
Connect flow controller 101 and atmosphere, the switched path both ends connection flow controller 101 of triple valve 1 and gas buffer region
104, the branch road between gas buffer region 104 and aspiration pump 1 is equipped with solenoid valve 105, and aspiration pump 1 is equipped with flow
Detection device 2 107；Analysis module 12 includes the triple valve 2 108 connecting with gas buffer region 104, triple valve 2 108 it is normal
Logical both ends connection 104 front end of gas buffer region and gas humidistat 110, the switched path both ends connection of triple valve 2 108
Pneumatic filter 109 and gas humidistat 110,110 rear end of gas humidity adjuster are connected with 2 111 He of aspiration pump in turn
Nitric oxide concentration sensor 113 is additionally provided with flow detector 3 112 on aspiration pump 2 111.
The master control borad 21 of control module 20 is equipped with the first driver 22 for driving flow controller, takes out for driving
Second driver 23 of air pump one, for driving the third driver 24 of aspiration pump two, for other terminal equipment in communication
Communication unit 25.
Communication unit 25 includes the USB unit communicated with printer 31, the WIFI with 33 compunlcation of mobile phone 32 or plate
Unit, the mobile network's unit communicated with background server 34.In order to realize the above-mentioned exhaled gas based on human-computer interaction module
Apparatus for measuring concentration additionally provides a kind of measurement method of exhaled gas concentration, this method comprises:
1) when user of service exhales beginning, flow controller 101, solenoid valve 105, flow detector sampling process: are opened
One 102 real-time detection expiratory gas flows, and flow controller 101 is transferred data to, flow controller 101 is by the data and presets
Target expiratory gas flow be compared, and in time adjust expiration pipeline latus rectum, guarantee that expiratory gas flow meets preset stream
Amount collects the exhaled gas under default constant flow in gas buffer region, when acquisition gas reaches preset vol, closes solenoid valve
105, flow controller 101；
2) analytic process: to sampling process 1) in collected gas when analyzing, open aspiration pump 2 111, gas made to exist
Passed sequentially through in analysis module triple valve 2 108, gas humidity adjuster 110, flow detector 3 112, aspiration pump 2 111,
Gas concentration sensor 113 reads the current value one that nitric oxide concentration sensor measures, then switching three-way valve 2 108, makes sky
Gas passes through pneumatic filter 109, triple valve 2 108, gas humidity adjuster 110, flow detector 3 112, aspiration pump two
111, the current value two that nitric oxide concentration sensor measures is read in gas concentration sensor 113；
3) concentration calculation: process of calculation analysis 2) in the difference of two current values that measures, divided by nitric oxide concentration sensor
Sensitivity, as sampling process 1) in collected nitric oxide concentration.
4) big data is handled: by the analytic process information of nitric oxide gas in user information and its expiration and last calculating
Concentration information be stored in terminal 40, can read and analyze data by human-computer interaction module 41, communication unit 25 can also be passed through
It is sent to background server 34 or big data platform, big data platform analyzes the health of user according to human medical model
Situation carries out medical diagnosis on disease, records in conjunction with the treatment of user, provides the personalized scheme of profession.
When user of service starts to exhale by disposable filter tip 13, triple valve 1 is normally opened access, opens flow control
Device 101 processed exhales be expelled directly out atmosphere at this time, after the expiratory air of about 3 airway dead space volume capacities (about 100ml) to be discharged,
First driver 22 carries out feedback regulation to flow controller 101, when expiration meets default stream according to the preset flow of 50ml/s
When amount, opens the switched path of triple valve 1, opens solenoid valve 105, enter gas buffer region 104 so that exhaling, work as expiration
Not up to preset flow when, maintain triple valve 1 normally opened access so that exhale be discharged into atmosphere.User of service is repeated several times
It exhales, until expired volume is more than or equal to 2 times of gas buffer region volume, closing flow controller 102, solenoid valve 105, the gas
Volume buffer volume is about 50ml.
In 1) sampling in 2) analytic process, aspiration pump 2 111 works according to preset flow, and passes through flow detection
Device 3 112 detects its practical working flow, when detecting that real work flow deviation is more than 3%, the control mould
Block 20 is respectively adjusted the operating voltage of aspiration pump 2 111 by third driver 24, so that the work of aspiration pump 2 111
Flow meets preset flow, and the preset flow of the aspiration pump 2 111 in the present embodiment is 1.5ml/s.
Another embodiment according to the present invention, as shown in figure 5, gas path module 10 is by sampling module 11 and analysis module
12 are constituted, and exhaled gas passes sequentially through flow controller 101, triple valve 1, gas buffer region 104 in sampling module 11
With aspiration pump 1, wherein flow controller 101 is equipped with flow detector 1, the normal open both ends of triple valve 1
Connect flow controller 101 and atmosphere, the switched path both ends connection flow controller 101 and gas buffer of triple valve 1
Area 104, the branch road between gas buffer region 104 and aspiration pump 1 are equipped with solenoid valve 105, and aspiration pump 1 is equipped with stream
Amount detecting device 2 107；Analysis module 12 includes the triple valve 2 108 connecting with gas buffer region 104, triple valve 2 108
Normal open both ends connect 104 front end of gas buffer region and gas humidistat 110, and the switched path both ends of triple valve 2 108 connect
Pneumatic filter 109 and gas humidistat 110 are connect, the both ends of pneumatic filter 109 are separately connected 104 He of gas buffer region
Triple valve 2 108,110 rear end of gas humidity adjuster are connected with aspiration pump 2 111 and nitric oxide concentration sensor in turn
113, flow detector 3 112, the rear end of nitric oxide concentration sensor 113 and gas are additionally provided on aspiration pump 2 111
Buffer area 104 is connected.
The master control borad 21 of control module 20 is equipped with the first driver 22 for driving flow controller, takes out for driving
Second driver 23 of air pump one, for driving the third driver 24 of aspiration pump two, for other terminal equipment in communication
Communication unit 25.Communication unit 25 includes the USB unit communicated with printer 31, with 33 compunlcation of mobile phone 32 or plate
WIFI unit, the mobile network's unit communicated with background server 34.
In order to realize the above-mentioned exhaled gas apparatus for measuring concentration based on human-computer interaction module, a kind of expiratory air is additionally provided
The measurement method of bulk concentration, this method comprises:
1) sampling process: flow controller 101, solenoid valve 105 and aspiration pump one are opened in the acquisition to nasal cavity gas or airbag gas
106, under test gas acquisition is entered in gas buffer region 104 with the flow of 10ml/s, acquisition time 10s；
2) analytic process: to sampling process 1) in collected gas when analyzing, open aspiration pump 2 111, gas made to exist
Passed sequentially through in analysis module triple valve 2 108, gas humidity adjuster 110, flow detector 3 112, aspiration pump 2 111,
Gas concentration sensor 113 is returned in gas buffer region 104, reads the current value one that nitric oxide concentration sensor measures,
Switching three-way valve 2 108 again, make the gas returned in gas buffer region 104 pass through again pneumatic filter 109, triple valve 2 108,
Gas humidity adjuster 110, flow detector 3 112, aspiration pump 2 111, gas concentration sensor 113 read nitric oxide
The current value two that concentration sensor measures；
3) concentration calculation: process of calculation analysis 2) in the difference of two current values that measures, divided by nitric oxide concentration sensor
Sensitivity, as sampling process 1) in collected nitric oxide concentration.
4) big data is handled: by the analytic process information of nitric oxide gas in user information and its expiration and last calculating
Concentration information be stored in terminal 40, can read and analyze data by human-computer interaction module 41, communication unit 25 can also be passed through
It is sent to background server 34 or big data platform, big data platform analyzes the health of user according to human medical model
Situation carries out medical diagnosis on disease, records in conjunction with the treatment of user, provides the personalized scheme of profession.
When user of service starts to exhale by disposable filter tip 13, triple valve 1 is normally opened access, opens flow control
Device 101 processed exhales be expelled directly out atmosphere at this time, after the expiratory air of about 3 airway dead space volume capacities (about 100ml) to be discharged,
First driver 22 carries out feedback regulation to flow controller 101, when expiration meets default stream according to the preset flow of 50ml/s
When amount, opens the switched path of triple valve 1, opens solenoid valve 105, enter gas buffer region 104 so that exhaling, work as expiration
Not up to preset flow when, maintain triple valve 1 normally opened access so that exhale be discharged into atmosphere.User of service is repeated several times
It exhales, until expired volume is more than or equal to 2 times of gas buffer region volume, closing flow controller 102, solenoid valve 105, the gas
Volume buffer volume is about 50ml.
In 1) sampling in 2) analytic process, aspiration pump 1 or aspiration pump 2 111 work according to preset flow,
And its practical working flow is detected by flow detector 2 107 or flow detector 3 112, when detecting reality
When border working flow deviation is more than 3%, the control module 20 is by the second driver 23 or third driver 24 respectively to pumping
Pump 1 or the operating voltage of aspiration pump 2 111 be adjusted so that the working flow of aspiration pump 1 or aspiration pump 2 111
Meet preset flow, the flow of the aspiration pump 2 111 in the present embodiment is 1ml/s.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention answers the protection model with claim
Subject to enclosing.
Claims (10)
1. the exhaled gas apparatus for measuring concentration based on human-computer interaction module, including shell, enclosure interior, which is equipped with, to be communicated with each other
Gas path module, control module, it is characterised in that: handhold part is connected on the shell, housing side is equipped with dismountable glove
Portion, the shell other side are provided with ventilating part, and shell is connected with by a hose can be with the expiration entrance of human contact.
2. the exhaled gas apparatus for measuring concentration based on human-computer interaction module as described in claim 1, it is characterised in that: also wrap
Terminal is included, the terminal includes being mounted on the positive interactive module of shell, the memory module and insertion of installation inside housings
Formula system board, the interactive module are communicated with embedded system plate, and the memory module is counted with embedded system plate
According to transmission.
3. the exhaled gas apparatus for measuring concentration based on human-computer interaction module as described in claim 1, it is characterised in that；It is described
Gas path module is made of sampling module and analysis module；The sampling module includes sequentially connected flow controller, triple valve
One, gas buffer region, aspiration pump one are connected with flow detector one on the flow controller, connect on the aspiration pump one
It is connected to flow detector two, one normal open both ends of the triple valve connection flow controller and atmosphere, the switching of triple valve one are logical
Road both ends connect the gentle volume buffer of flow controller, and the branch road between the gas buffer region and aspiration pump one is equipped with electromagnetism
Valve；The analysis module includes sequentially connected gas buffer region, triple valve two, gas humidity adjuster, aspiration pump two, gas
Concentration sensor；The two normal open both ends of triple valve connect gas buffer region front end, gas humidity adjuster, and triple valve two is cut
The connection of access both ends pneumatic filter, gas humidity adjuster are changed, the aspiration pump two is connected with flow detector three.
4. the exhaled gas apparatus for measuring concentration based on human-computer interaction module as described in claim 1, it is characterised in that: described
Control module includes master control borad, and master control borad is equipped with the first driver for driving flow controller, for driving aspiration pump
One the second driver, for driving the third driver of aspiration pump two, for the communication unit with other terminal equipment in communication；
The embedded system is Android, Windows or linous system.
5. the exhaled gas apparatus for measuring concentration based on human-computer interaction module as claimed in claim 4, it is characterised in that: described
Communication unit includes the USB unit with printer communication, the WIFI unit communicated with mobile phone or tablet computer, with background server
Mobile network's unit of communication；The interactive module is OLED, LED or LCD display；The gas concentration sensor can be
Nitric oxide sensor, carbon monoxide transducer, hydrogen or hydrogen sulfide sensor, methane gas sensor.
6. a kind of exhaled gas concentration measuring method based on human-computer interaction module, it is characterised in that:
1) sampling process: when user of service exhales beginning, flow controller, solenoid valve are opened, flow detector one is real-time
Expiratory gas flow is detected, and transfers data to flow controller, flow controller is by the data and preset target expiratory gas flow
It is compared, and adjusts the latus rectum of flow controller in time, guarantee that expiratory gas flow meets preset flow, collect presetting
Exhaled gas under flow when collection gas reaches preset vol, closes solenoid valve, flow controller in gas buffer region；
2) analytic process: to sampling process 1) in collected gas when analyzing, open aspiration pump two, analyzing gas
Triple valve two, gas humidity adjuster, flow detector three, aspiration pump two, gas concentration sensor are passed sequentially through in module, are read
The current value one for taking gas concentration sensor to measure, then switching three-way valve two, pass the gas through pneumatic filter, triple valve two,
Gas humidity adjuster, flow detector three, aspiration pump two, gas concentration sensor read what gas concentration sensor measured
Current value two；
3) concentration calculation: process of calculation analysis 2) in the difference of two current values that measures, divided by the spirit of gas concentration sensor
Sensitivity, as sampling process 1) in collected gas concentration.
7. a kind of measurement method of exhaled gas concentration as claimed in claim 6, it is characterised in that: user of service, which exhales, to be started
When, triple valve one is normally opened access, opens flow controller, exhales be expelled directly out atmosphere at this time, about 1-3 air flue to be discharged is dead
After the expiratory air of cavity volume capacity, the first driver carries out feedback regulation to flow controller according to preset flow, accords with when exhaling
When closing preset flow, opens the switched path of triple valve one, opens solenoid valve, enter gas buffer region so that exhaling, work as expiration
Not up to preset flow when, maintain triple valve one normally opened access so that exhale be discharged into atmosphere；User of service is repeated several times and exhales
Gas closes the flow controller, solenoid valve until gas buffer region volume of the expired volume more than or equal to 2 times.
8. a kind of measurement method of exhaled gas concentration as claimed in claim 6, it is characterised in that: the sampling process 1) also
Including the acquisition to nasal cavity gas or airbag gas, process are as follows: flow controller, solenoid valve and aspiration pump one are opened, with 5 ~
The flow of 20ml/s enters under test gas acquisition in gas buffer region, until the gas volume of acquisition is more than or equal to 2 times of gas
Volume buffer volume.
9. a kind of measurement method of exhaled gas concentration as claimed in claim 6, it is characterised in that: further include 4) at big data
Reason: the concentration information by the analytic process information of nitric oxide gas in user information and its expiration and finally calculated is stored in end
End can be read and be analyzed data by human-computer interaction module, background server or big data can also be sent to by communication unit
Platform, big data platform analyze the physical condition of user according to human medical model, medical diagnosis on disease are carried out, in conjunction with user
Treatment record, provide the personalized scheme of profession.
10. a kind of measurement method of exhaled gas concentration as claimed in claim 6, it is characterised in that: the aspiration pump one or
Aspiration pump two works according to preset flow, and by flow detector two or flow detector three to its real work
Flow is detected, when detecting that real work flow deviation is more than 3 ~ 10%, the control module by the second driver or
Third driver is respectively adjusted the operating voltage of aspiration pump one or aspiration pump two, so that aspiration pump one or aspiration pump two
Working flow meets preset flow.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505217A (en) * | 2020-05-19 | 2020-08-07 | 东南大学 | Human body exhaled gas detection system |
| CN113504361A (en) * | 2021-01-19 | 2021-10-15 | 广州瑞普医疗科技有限公司 | Automatic detection method and system |
| CN113854997A (en) * | 2021-09-24 | 2021-12-31 | 中国科学院合肥物质科学研究院 | Lung dispersion function inspection device and method based on one-breath method |
| WO2022024011A1 (en) * | 2020-07-29 | 2022-02-03 | AusMed Global Limited | A fluid measurement chamber |
| CN114200087A (en) * | 2021-12-15 | 2022-03-18 | 杭州汇健科技有限公司 | Expiration tester and using method thereof |
| CN114431854A (en) * | 2021-12-23 | 2022-05-06 | 新绎健康科技有限公司 | Digital auscultation detection device based on respiratory gas and detection method thereof |
-
2018
- 2018-04-20 CN CN201810359987.4A patent/CN110389198A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505217A (en) * | 2020-05-19 | 2020-08-07 | 东南大学 | Human body exhaled gas detection system |
| WO2022024011A1 (en) * | 2020-07-29 | 2022-02-03 | AusMed Global Limited | A fluid measurement chamber |
| CN113504361A (en) * | 2021-01-19 | 2021-10-15 | 广州瑞普医疗科技有限公司 | Automatic detection method and system |
| CN113854997A (en) * | 2021-09-24 | 2021-12-31 | 中国科学院合肥物质科学研究院 | Lung dispersion function inspection device and method based on one-breath method |
| CN113854997B (en) * | 2021-09-24 | 2024-04-05 | 中国科学院合肥物质科学研究院 | Lung dispersion function inspection device and method based on one-touch method |
| CN114200087A (en) * | 2021-12-15 | 2022-03-18 | 杭州汇健科技有限公司 | Expiration tester and using method thereof |
| CN114431854A (en) * | 2021-12-23 | 2022-05-06 | 新绎健康科技有限公司 | Digital auscultation detection device based on respiratory gas and detection method thereof |
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Application publication date: 20191029 |