CN106908227B - A kind of air-tightness automatic testing method of Anesthesia machine Manual safety valve - Google Patents
A kind of air-tightness automatic testing method of Anesthesia machine Manual safety valve Download PDFInfo
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- CN106908227B CN106908227B CN201510971285.8A CN201510971285A CN106908227B CN 106908227 B CN106908227 B CN 106908227B CN 201510971285 A CN201510971285 A CN 201510971285A CN 106908227 B CN106908227 B CN 106908227B
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- pressure
- safety valve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The present invention relates to a kind of air-tightness automatic testing methods of Anesthesia machine Manual safety valve, comprising: after connecting pipeline with Manual bladder in Anesthesia machine, carries out quickly oxygen supply inflation to pipeline and leather bag, determines and perform the next step after airway pressure is being in propradation；Whether detection airway pressure reaches stable state, performs the next step after reaching stable state；The steady-state value of airway pressure is compared with a relief valve set pressure value, safety valve is tested whether to pass through with determination.
Description
Technical field
The present invention relates to instrument detection field, in particular to a kind of air-tightness of Anesthesia machine Manual safety valve side of detection automatically
Method.
Background technique
Manual safety valve is the critical component that Anesthesia machine monitors pressure and protected, in Anesthesia machine manual ventilation process
In, by adjusting the pressure limit value of setting Manual safety valve, the airway pressure of patient can be limited in venting process, no
The pressure limit value of Manual safety valve setting can be higher than, to guarantee safety of the Anesthesia machine to patient ventilating when.
The detection Manual safety valve safety whether working properly for Anesthesia machine performance has great importance.Inspection at present
Survey Manual safety valve method mainly lean on doctor's hand to pinch leather bag, by micro-judgment safety valve whether gas leakage, this detection side
Method is inconvenient for operation, and test inaccuracy be easy to cause biggish deviation.Therefore it needs to carry out technical improvement.
Summary of the invention
It is an object of the invention to overcome existing Manual safety valve detection method to rely on the defect of micro-judgment, to mention
For a kind of air-tightness automatic testing method of Anesthesia machine Manual safety valve.
To achieve the goals above, the present invention provides a kind of air-tightness of the Anesthesia machine Manual safety valve sides of detection automatically
Method, comprising:
Step 1) after connecting pipeline with Manual bladder in Anesthesia machine, carries out quickly oxygen supply inflation to pipeline and leather bag,
It determines and is performed the next step after airway pressure is being in propradation；
Whether step 2), detection airway pressure reach stable state, perform the next step after reaching stable state；
The steady-state value of airway pressure is compared by step 3) with a relief valve set pressure value, to determine to safety valve
Test whether pass through.
In above-mentioned technical proposal, the step 1) further comprises:
Step 1-1), connecting line and Manual bladder, then carry out quickly oxygen supply inflation to pipeline and leather bag；
Step 1-2), at each interval the time acquire a pressure data, the N number of data of continuous acquisition, if these count
According to continuously enlarging, it is determined that be in propradation for pressure, performing the next step, otherwise re-start data acquisition and
Detection.
In above-mentioned technical proposal, the range of first interval time is between 30ms~80ms, and the size of the N is 10
Between~20.
In above-mentioned technical proposal, the size of first interval time is 50ms, and the size of the N is 16.
In above-mentioned technical proposal, the step 2) further comprises:
Step 2-1), every the second interval time acquire a pressure data, M data of continuous acquisition therefrom find out most
Small pressure value；
Step 2-2), calculate step 2-1) in other pressure values and minimum pressure values collected difference, if all
The difference of data is all within stable state accuracy range, then airway pressure has entered steady state for the first time；
Step 2-3), when airway pressure for the first time enter steady state after, re-start detection airway pressure, and start
Timing, if detected pressure data is at steady state within a certain period of time, by the collected multiple pressure of institute
Data are compared, and take the average value of all pressure datas, calculate the error of each pressure data and average value, if all numbers
According to error all within stable state accuracy range, then pressure data is all in steady state, by the average value of all pressure datas
Steady-state value as airway pressure.
In above-mentioned technical proposal, the range of second interval time is between 30ms~80ms, and the size of the M is 40
Between~100.
In above-mentioned technical proposal, the size of second interval time is 50ms, and the size of the M is 40.
In above-mentioned technical proposal, the step 3) is specifically included:
The steady-state value for the airway pressure that will test is compared with relief valve set pressure value, if gap is in a range
Interior, then safety valve can work normally at the pressure value of setting.
The present invention has the advantages that
Method of the invention can be realized detects the air-tightness of Anesthesia machine Manual safety valve automatically, has detection accuracy
Advantage high, test result is accurate, effectively increases the safety of Anesthesia machine.
Detailed description of the invention
Fig. 1 is the schematic diagram of the manual gas circuit of Anesthesia machine；
Fig. 2 is the flow chart of the air-tightness automatic testing method of Anesthesia machine Manual safety valve of the invention.
Specific embodiment
Now in conjunction with attached drawing, the invention will be further described.
In the manual gas circuit of Anesthesia machine, doctor can ventilate in such a way that hand pinches leather bag into patient's lung.Fig. 1 is denoted
Position of the Manual safety valve in the manual gas circuit of Anesthesia machine, it can adjust the gas pressure for entering lung in control gas circuit.Work as gas
After pressure limit value of the body pressure more than Manual safety valve setting, Manual safety valve can bleed off extra gas, to guarantee
The safety of patient ventilating.When hand pinches leather bag, the gas in leather bag will be living by Manual safety valve, flow sensor, air-breathing
Valve, airway pressure sensor enter lung；After unclamping Manual bladder, the gas of patient lung will pass through expiratory valve, flow
Sensor, Manual safety valve return in Manual bladder, and patient completes respiration process.Wherein flow sensor is used to monitor gas
Body flow, airway pressure sensor monitor airway pressure, and inspiratory valve is connected in breathing process, closes in exhalation process；It exhales
Gas flap valve is connected in exhalation process, closes in breathing process.
With reference to Fig. 2, the air-tightness automatic testing method of Anesthesia machine Manual safety valve of the invention includes:
Step 1) after connecting pipeline with Manual bladder in Anesthesia machine, carries out quickly oxygen supply inflation to pipeline and leather bag,
In the process by detecting whether airway pressure has rising variation to determine whether inflating into pipeline.
The step specifically includes:
Step 1-1), connecting line and Manual bladder, then carry out quickly oxygen supply inflation to pipeline and leather bag；
Step 1-2), at each interval the time acquire a pressure data, the N number of data of continuous acquisition, if these count
According to continuously enlarging, it is determined that be in propradation for pressure, performing the next step, otherwise re-start data acquisition and
Detection.
In this step, the range of first interval time is between 30ms~80ms, and the size of the N is 10~20
Between a.As a preferred implementation, the size of first interval time is 50ms, and the size of the N is 16.
Step 2), determine pressure be in propradation after, detect airway pressure whether reach stable state.
The step specifically includes:
Step 2-1), every the second interval time acquire a pressure data, M data of continuous acquisition therefrom find out most
Small pressure value；
In this step, the range of second interval time is between 30ms~80ms, the size of the M 40~
Between 100.As a preferred implementation, the size of second interval time is 50ms, and the size of the M is 40.
Step 2-2), calculate step 2-1) in other pressure values and minimum pressure values collected difference, if all
The difference of data is all in stable state accuracy (such as 2cmH2O) within range, illustrate that airway pressure has entered steady state for the first time；
Step 2-3), when airway pressure for the first time enter steady state after, re-start detection airway pressure, and start
Timing, if within a certain period of time (in 3~5 seconds) detected by pressure data be at steady state, will be acquired
To multiple pressure datas (such as 40~100 data) be compared, take the average value of all pressure datas, calculate each pressure
The error of data and average value, if the error of all data illustrates to press all within stable state accuracy (such as 2cmH2O) range
Force data is all in steady state, using the average value of all pressure datas as the steady-state value of airway pressure, while also illustrating to pacify
Full valve has been switched on and plays the role of limiting pressure.
The steady-state value of airway pressure is compared by step 3) with a relief valve set pressure value, to determine to safety valve
Test whether pass through.
The step specifically includes:
(majority is set the steady-state value for the airway pressure that will test when such as Anesthesia machine clinical use with relief valve set pressure value
Setting safety valve pressure is 30cmH2O it) compares, if gap (such as positive and negative 5cmH in a smaller range2O), illustrate that safety valve exists
It can be worked normally at the pressure value of setting.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (7)
1. a kind of air-tightness automatic testing method of Anesthesia machine Manual safety valve, comprising:
Step 1) after connecting pipeline with Manual bladder in Anesthesia machine, carries out quickly oxygen supply inflation to pipeline and leather bag, determines
Airway pressure performs the next step after being in propradation；
Whether step 2), detection airway pressure reach stable state, perform the next step after reaching stable state；
The step 2) further comprises:
Step 2-1), every the second interval time acquire a pressure data, M data of continuous acquisition therefrom find out minimum pressure
Force value；
Step 2-2), calculate step 2-1) in other pressure values and minimum pressure values collected difference, if all data
Difference all within stable state accuracy range, then airway pressure has entered steady state for the first time；
Step 2-3), when airway pressure for the first time enter steady state after, re-start detection airway pressure, and start to count
When, if detected pressure data is at steady state within a certain period of time, by the collected multiple number pressures of institute
According to being compared, the average value of all pressure datas is taken, calculates the error of each pressure data and average value, if all data
Error all within stable state accuracy range, then pressure data is made the average value of all pressure datas all in steady state
For the steady-state value of airway pressure；
The steady-state value of airway pressure is compared by step 3) with a relief valve set pressure value, to determine the survey to safety valve
Whether examination passes through.
2. the air-tightness automatic testing method of Anesthesia machine Manual safety valve according to claim 1, which is characterized in that described
Step 1) further comprises:
Step 1-1), connecting line and Manual bladder, then carry out quickly oxygen supply inflation to pipeline and leather bag；
Step 1-2), at each interval the time acquire a pressure data, the N number of data of continuous acquisition, if these data are
It continuously enlarges, it is determined that be in propradation for pressure, performing the next step, otherwise re-starting data acquisition and inspection
It surveys.
3. the air-tightness automatic testing method of Anesthesia machine Manual safety valve according to claim 2, which is characterized in that described
The range of first interval time is between 30ms~80ms, and the size of the N is between 10~20.
4. the air-tightness automatic testing method of Anesthesia machine Manual safety valve according to claim 3, which is characterized in that described
The size of first interval time is 50ms, and the size of the N is 16.
5. the air-tightness automatic testing method of Anesthesia machine Manual safety valve according to claim 1, which is characterized in that described
The range of second interval time is between 30ms~80ms, and the size of the M is between 40~100.
6. the air-tightness automatic testing method of Anesthesia machine Manual safety valve according to claim 5, which is characterized in that described
The size of second interval time is 50ms, and the size of the M is 40.
7. the air-tightness automatic testing method of Anesthesia machine Manual safety valve according to claim 1, which is characterized in that described
Step 3) specifically includes:
The steady-state value for the airway pressure that will test is compared with relief valve set pressure value, if gap is in a range,
Safety valve can work normally at the pressure value of setting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971285.8A CN106908227B (en) | 2015-12-22 | 2015-12-22 | A kind of air-tightness automatic testing method of Anesthesia machine Manual safety valve |
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|---|---|---|---|
| CN201510971285.8A CN106908227B (en) | 2015-12-22 | 2015-12-22 | A kind of air-tightness automatic testing method of Anesthesia machine Manual safety valve |
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| CN106908227A CN106908227A (en) | 2017-06-30 |
| CN106908227B true CN106908227B (en) | 2019-04-16 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592547A (en) * | 2008-05-27 | 2009-12-02 | 北京谊安医疗系统股份有限公司 | The method of anesthesia machine system Leak Detection |
| CN103900803A (en) * | 2012-12-26 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | Machine-controlled safety valve detection method and device |
-
2015
- 2015-12-22 CN CN201510971285.8A patent/CN106908227B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592547A (en) * | 2008-05-27 | 2009-12-02 | 北京谊安医疗系统股份有限公司 | The method of anesthesia machine system Leak Detection |
| CN103900803A (en) * | 2012-12-26 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | Machine-controlled safety valve detection method and device |
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| CN106908227A (en) | 2017-06-30 |
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