CN103285479B - Device for monitoring airway collapse characteristic parameters of breathing machine - Google Patents
Device for monitoring airway collapse characteristic parameters of breathing machine Download PDFInfo
- Publication number
- CN103285479B CN103285479B CN201310228421.5A CN201310228421A CN103285479B CN 103285479 B CN103285479 B CN 103285479B CN 201310228421 A CN201310228421 A CN 201310228421A CN 103285479 B CN103285479 B CN 103285479B
- Authority
- CN
- China
- Prior art keywords
- expiratory gas
- expiration
- gas flow
- module
- decrease
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 230000007423 decrease Effects 0.000 claims description 26
- 238000012806 monitoring device Methods 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000414 obstructive effect Effects 0.000 description 2
- 208000006545 Chronic Obstructive Pulmonary Disease Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009798 acute exacerbation Effects 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention relates to a device for monitoring airway collapse characteristic parameters of a breathing machine. The device is characterized by comprising the breathing machine, a monitoring host machine and a displayer, wherein the breathing machine processes gas inhaled by a patient in real time to obtain expiration flow data, the expiration flow data are transmitted to the monitoring host machine, the monitoring host machine conducts measurement of the airway collapse characteristic parameters on the expiration flow data, and measurement results are displayed by the displayer. According to the device, the range of application is greatly widened, and reliability is strong. The device can be widely applied to the technical field of medical equipment.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly fall into about a kind of respirator air flue the monitoring device closing characteristic parameter.
Background technology
Airway obstructive disease, mainly comprises chronic obstructive pulmonary disease (COPD) and asthma, and be the very common disease of a class, number of patients is many, and case fatality rate is high, is the 5th the dead in the world at present cause of disease.Its acute attack stage often needs tracheal intubation to connect respirator assisted ventilation.Patients with acute exacerbation airway secretions is many, air flue luminal stenosis, and airway resistance increases, thus occurs flow limitation.In addition, Patients with Lung parenchymal tissue extensively destroys for a long time and causes pulmonary elastic recoil to decline, and the driving pressure of exhaled air flow is reduced; The supporting construction of peripheral airways is destroyed, and easily makes to occur during expiration that the sunken of small airway closes.Therefore, air flue falls into that to close be that airway obstructive disease patients acuity increases the weight of phase one important feature.
Identify that this feature and the order of severity thereof can contribute to the clinical judgment state of an illness early, monitor its change and be also conducive to reflecting change of illness state.But, there is no the instrument accurately judged at present, only rely on the experience of clinical staff to differentiate.Further, the use due to respirator is professional very strong, and progress is fast, and still have a lot of medical personnel not possess differentiation experience, therefore, the scope of application has certain limitation.In addition, respirator waveform is with the naked eye difficult to accurate Characterization air flue fall into close feature.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of respirator air flue and fall into the monitoring device closing characteristic parameter, it greatly improves the scope of application, reliability is strong.
For achieving the above object, the present invention takes following technical scheme: a kind of respirator air flue falls into the monitoring device closing characteristic parameter, it is characterized in that: it comprises respirator, monitoring main frame and display; Expiratory gas flow data are obtained after being processed in real time by the gas of patient's incoming call by described respirator, and expiratory gas flow data are transferred to described monitoring main frame, carry out air flue by described monitoring main frame to the expiratory gas flow data received and fall into the measurement of closing characteristic parameter, measurement result is by described display output display.
Described respirator comprises sensor, amplifying circuit and sample circuit, described sensor obtains corresponding throughput signal by the gas gathering patient's incoming call, and by throughput Signal transmissions to described amplifying circuit, after throughput signal being carried out amplification and filtering by described amplifying circuit, input to the ADC module in described sample circuit, throughput signal is carried out the throughput signal that analog digital conversion obtains digital quantity by described ADC module.
Described monitoring main frame comprises memorizer and measurement module, presets expiratory gas flow range of decrease computing module and expiration percentage calculation module in described measurement module; Described sample circuit is preserved in the throughput Signal transmissions of digital quantity to described memorizer, described measurement module recalls not corresponding in the same time throughput signal value from described memorizer, carried out the calculating of the expiratory gas flow range of decrease and expiration percentage ratio respectively by described expiratory gas flow range of decrease computing module preset in described measurement module and expiration percentage calculation module, the expiratory gas flow range of decrease value obtained and expiration percent value are input in described display and show.
The expiratory gas flow range of decrease computing formula of described expiratory gas flow range of decrease computing module is:
The expiratory gas flow range of decrease=(FA-FB)/FA,
In formula, the flow value of FA corresponding to expiration maximum peak flow, FB be expiration maximum peak flow after the minimum of expiratory gas flow in 0.1s, first second expiratory gas volume is the expiratory gas volume of patient in expiration beginning first second, total expiratory gas volume of patient at the end of total expiration amount is respiration.
Expiration percentage calculation formula in described expiration percentage calculation module is:
Expiration percentage ratio=the first second expiratory gas volume/total expiration amount.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention closes feature owing to proposing to fall into as the air flue that parameter characterizes patient with the expiratory gas flow range of decrease and expiration percentage ratio, make in clinical practice, lower to the professional requirement of Use of respirator, therefore, be equally applicable to layman, substantially increase the scope of application.2, the present invention owing to being prefixed expiratory gas flow range of decrease computing module and expiration percentage calculation module in measurement module, the result of calculation of the expiratory gas flow range of decrease and expiration percentage ratio can be passed through display display translation, for medical personnel judge that the state of an illness provides foundation, reliability is strong.The present invention can extensively apply in technical field of medical instruments.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present invention;
Fig. 2 is flow-time curve schematic diagram of the present invention, and wherein, horizontal axis representing time, unit is second, and the longitudinal axis represents flow, and unit is liter/min.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, monitoring device of the present invention comprises respirator 1, monitoring main frame 2 and display 3.After patient exhales facing to respirator 1, carry out respective handling by the gas of respirator 1 pair of incoming call and obtain expiratory gas flow data in real time, and expiratory gas flow data are transferred to monitoring main frame 2, carry out air flue by monitoring main frame 2 to the expiratory gas flow data received and fall into the measurement of closing characteristic parameter, measurement result is by display 3 output display.
Respirator 1 comprises sensor 4, amplifying circuit 5 and sample circuit 6.Sensor 4 obtains corresponding throughput signal by the gas gathering patient's incoming call, through sensor 4 export throughput Signal transmissions in amplifying circuit 5, by amplifying circuit 5 by fainter and be attended by certain noise disturb throughput signal carry out amplifying and filtering.Amplification and filtered throughput signal input to the ADC module in sample circuit 6, and throughput signal is carried out the throughput signal that analog digital conversion obtains digital quantity by ADC module.
Monitoring main frame 2 comprises memorizer 7 and measurement module 8, wherein, preserves the throughput signal of the digital quantity obtained through sample circuit 6 in memorizer 7, presets expiratory gas flow range of decrease computing module and expiration percentage calculation module in measurement module 8.Sample circuit 6 is preserved in the throughput Signal transmissions of digital quantity to memorizer 7, measurement module 8 recalls not corresponding in the same time throughput signal value from memorizer 7, the calculating of the expiratory gas flow range of decrease and expiration percentage ratio is carried out respectively by expiratory gas flow range of decrease computing module preset in measurement module 8 and expiration percentage calculation module, the expiratory gas flow range of decrease value calculated through measurement module 8 and expiration percent value are input in display 3, by display 3 output display measurement result.
In above-described embodiment, in measurement module 8, the expiratory gas flow range of decrease computing formula of expiratory gas flow range of decrease computing module is:
The expiratory gas flow range of decrease=(FA-FB)/FA,
Expiration percentage calculation formula in measurement module 8 in expiration percentage calculation module is:
Expiration percentage ratio=the first second expiratory gas volume/total expiration amount,
In formula, the flow value of FA corresponding to expiration maximum peak flow, FB be expiration maximum peak flow after the minimum of expiratory gas flow in 0.1s.First second expiratory gas volume is the expiratory gas volume of patient in expiration beginning first second, and total expiratory gas volume of patient at the end of total expiration amount is respiration, the two is all by asking definite integral to obtain to flow-time curve.
In use, after patient exhales facing to respirator, the flow-time curve (as shown in Figure 2) of the patient obtained by monitoring main frame 2, wherein the first half of transverse axis represents the inspiratory flow of patient, and the latter half of transverse axis represents the expiratory gas flow of patient in the present invention.The transverse axis bottom left section curve of oval mark represents that namely throughput just occurs suddenly declining in breathing, is slowly down to 0 afterwards, and this is that air flue falls into the feature performance of closing; The curve that transverse axis lower right dotted portion is drawn represents the expiratory flow-volume curve falling into the normal person closing feature without air flue.By expiratory gas flow range of decrease computing module preset in measurement module 8 in monitoring main frame 2, obtain the expiratory flow value of patient, then obtain the expiration percent value of patient by preset expiration percentage calculation module.As shown in Figure 2, the area of dash area is the expiratory gas volume in expiration beginning first second, and its value is by asking definite integral to obtain to flow-time curve curve, and the bound of definite integral was decided by the selected time period.Total expiration amount at the end of expiration also can calculate by the method for definite integral, and wherein the lower limit of definite integral is corresponding moment when starting of once exhaling, the upper limit be once exhale at the end of corresponding moment.And then realize falling into the monitoring of closing characteristic parameter by monitoring main frame 2 pairs of respirator air flues.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, connected mode and processing technology etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (3)
1. respirator air flue falls into the monitoring device closing characteristic parameter, it is characterized in that: it comprises respirator, monitoring main frame and display; Expiratory gas flow data are obtained after being processed in real time by the gas of patient's incoming call by described respirator, and expiratory gas flow data are transferred to described monitoring main frame, carry out air flue by described monitoring main frame to the expiratory gas flow data received and fall into the measurement of closing characteristic parameter, measurement result is by described display output display;
Described respirator comprises sensor, amplifying circuit and sample circuit, described sensor obtains corresponding throughput signal by the gas gathering patient's incoming call, and by throughput Signal transmissions to described amplifying circuit, after throughput signal being carried out amplification and filtering by described amplifying circuit, input to the ADC module in described sample circuit, throughput signal is carried out the throughput signal that analog digital conversion obtains digital quantity by described ADC module;
Described monitoring main frame comprises memorizer and measurement module, presets expiratory gas flow range of decrease computing module and expiration percentage calculation module in described measurement module; Described sample circuit is preserved in the throughput Signal transmissions of digital quantity to described memorizer, described measurement module recalls not corresponding in the same time throughput signal value from described memorizer, carried out the calculating of the expiratory gas flow range of decrease and expiration percentage ratio respectively by described expiratory gas flow range of decrease computing module preset in described measurement module and expiration percentage calculation module, the expiratory gas flow range of decrease value obtained and expiration percent value are input in described display and show.
2. a kind of respirator air flue as claimed in claim 1 falls into the monitoring device closing characteristic parameter, it is characterized in that: the expiratory gas flow range of decrease computing formula of described expiratory gas flow range of decrease computing module is:
The expiratory gas flow range of decrease=(FA-FB)/FA,
In formula, the flow value of FA corresponding to expiration maximum peak flow, FB be expiration maximum peak flow after the minimum of expiratory gas flow in 0.1s.
3. a kind of respirator air flue as claimed in claim 1 or 2 falls into the monitoring device closing characteristic parameter, it is characterized in that: the expiration percentage calculation formula in described expiration percentage calculation module is:
Expiration percentage ratio=the first second expiratory gas volume/total expiration amount,
Wherein, first second expiratory gas volume is the expiratory gas volume of patient in expiration beginning first second, total expiratory gas volume of patient at the end of total expiration amount is respiration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310228421.5A CN103285479B (en) | 2013-06-08 | 2013-06-08 | Device for monitoring airway collapse characteristic parameters of breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310228421.5A CN103285479B (en) | 2013-06-08 | 2013-06-08 | Device for monitoring airway collapse characteristic parameters of breathing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103285479A CN103285479A (en) | 2013-09-11 |
| CN103285479B true CN103285479B (en) | 2015-05-06 |
Family
ID=49087355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310228421.5A Active CN103285479B (en) | 2013-06-08 | 2013-06-08 | Device for monitoring airway collapse characteristic parameters of breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103285479B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3316777A1 (en) * | 2015-06-30 | 2018-05-09 | Mermaid Care A/S | Identification of dynamic hyperinflation using a combination of expiratory flow and respiratory carbon dioxide signals |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0702977A2 (en) * | 1994-09-21 | 1996-03-27 | Medtronic, Inc. | Apparatus for detecting and treating obstructive airway disorders |
| US6440083B1 (en) * | 1991-12-17 | 2002-08-27 | Jeffrey J. Fredberg | Airway geometry imaging |
| CN101959455A (en) * | 2008-03-10 | 2011-01-26 | 捷斯特公司 | Respiration impedance measuring device and method, and respiration impedance display method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE517648T1 (en) * | 2004-01-07 | 2011-08-15 | Resmed Ltd | METHOD FOR PROVIDING EXPIRATORY PRESSURE RELIEF IN POSITIVE AIRWAY PRESSURE THERAPY |
| US20090107501A1 (en) * | 2007-10-24 | 2009-04-30 | Ana Krieger | System and method of monitoring respiratory airflow and oxygen concentration |
-
2013
- 2013-06-08 CN CN201310228421.5A patent/CN103285479B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6440083B1 (en) * | 1991-12-17 | 2002-08-27 | Jeffrey J. Fredberg | Airway geometry imaging |
| EP0702977A2 (en) * | 1994-09-21 | 1996-03-27 | Medtronic, Inc. | Apparatus for detecting and treating obstructive airway disorders |
| CN101959455A (en) * | 2008-03-10 | 2011-01-26 | 捷斯特公司 | Respiration impedance measuring device and method, and respiration impedance display method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103285479A (en) | 2013-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11247009B2 (en) | Anomaly detection device and method for respiratory mechanics parameter estimation | |
| US20110146683A1 (en) | Sensor Model | |
| JP2020500581A (en) | Resuscitation and ventilation unsynchronized monitor | |
| JP6783253B2 (en) | Methods, systems, and software for protection ventilation | |
| CN105769200A (en) | Wearable human respiration measuring system and method | |
| CN109350063B (en) | Respiratory mechanics parameter detection device and method suitable for chronic obstructive pulmonary disease monitoring | |
| CN106999098B (en) | Method and apparatus for determining the health of a subject | |
| CN108024759A (en) | Capnography with DSS framework | |
| US20140235959A1 (en) | Methods and algorithms for supervisory closed-loop determination of optimized scheduling of ventilator weaning trials | |
| Schmalisch et al. | Effect of endotracheal tube leak on capnographic measurements in a ventilated neonatal lung model | |
| CN103285479B (en) | Device for monitoring airway collapse characteristic parameters of breathing machine | |
| US20170100059A1 (en) | Lung function monitoring | |
| CN116110585B (en) | Respiratory rehabilitation evaluation system for chronic obstructive pneumonia | |
| TWM575322U (en) | Breathing training and monitoring device | |
| Brickman Raredon et al. | Pressure-Regulated Ventilator Splitting (PReVentS)–A COVID-19 Response Paradigm from Yale University | |
| Brewer et al. | Measurement of functional residual capacity by modified multiple breath nitrogen washout for spontaneously breathing and mechanically ventilated patients | |
| JP6912388B2 (en) | Non-invasive method of monitoring patient respiratory status via sequential parameter estimation | |
| WO2013137797A1 (en) | Apparatus and method for monitoring of mechanical ventilation | |
| CN109817331B (en) | Remote medical aid decision-making system for chronic obstructive pulmonary disease | |
| CN109316189B (en) | Non-contact respiration dynamic detection method and device | |
| TWI505812B (en) | System and method for displaying analysis of breath | |
| Sohrabi et al. | Quantification of nasal respiratory flow by tracheal sound analysis | |
| EP3764898A1 (en) | Method and apparatus for determining airflow limitation | |
| Robbani et al. | Design of Spirometry For Measure and Monitor Electric Smokers Lung Volume Based on Internet of Things | |
| TW202008959A (en) | Respiration training and monitoring device which comprises a respiration tube, a fluid sensor arranged in the respiration tube, and a control unit electrically connected to the fluid sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |