CN104075856B - Method for measuring compliance and leakage of system circuit of anaesthesia machine - Google Patents
Method for measuring compliance and leakage of system circuit of anaesthesia machine Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 206010002091 Anaesthesia Diseases 0.000 title claims abstract description 18
- 230000037005 anaesthesia Effects 0.000 title claims abstract description 18
- 238000001949 anaesthesia Methods 0.000 title abstract 2
- 230000003444 anaesthetic effect Effects 0.000 claims description 18
- 238000010926 purge Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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Abstract
The invention discloses a method for measuring the compliance and leakage of a system circuit of an anaesthesia machine. The method comprises the steps that firstly, air is fed into an air channel, the pressure difference value delta P1 of the air channel in the preset time delta T1 is calculated, the initial leakage value Lleak is calculated according to a stored default compliance value C1 and a first formula, namely Lleak=delta P1*C1; secondary, air is fed into the air channel again, the pressure different value delta P2 of the air channel in the preset time delta T2 is calculated after air feeding, and a new compliance value C2 is calculated according to a second flow Q2 and a second formula, namely C2=(Q2-Lleak)/delta P2; thirdly, the average value C3 of the stored default compliance value C1 and the new compliance value C2 is calculated according to a third formula, namely C3=(C1+C2) /2, a new leakage value Lleak-1 and a new compliance average value C5 are calculated by utilizing the first formula, the second formula and the third formula repeatedly; whether the absolute value of the difference between the average value C3 and the compliance average value C5 exceeds a preset value delta C is judged, if yes, all the steps are executed continuously, and if not, the compliance value C5 is taken as the final compliance value and the final leakage is calculated according to the compliance value C5.
Description
Technical field
The present invention relates to field of medical device, more specifically, it is related to a kind of anesthesia machine system loop compliance and leakage rate
Measuring method.
Background technology
Compliance and leakage rate are two important parameters that anesthetic machine is capable of normal work, control and calculating tide for accurate
The precision of tolerance has highly important impact.Wherein, compliance refers to the change of the lower capacity of unit pressure effect, i.e. compliance
=capacity change/pressure change；Leakage rate refers to the total amount of system circuit gas leakage under certain pressure effect, can adopt
Below equation is calculated, i.e. the leakage rate of system circuit=system circuit compliance * pressure change difference.
The detection of leakage rate mainly estimates corresponding leakage value respectively using maximum pressure and minimum pressure at present,
Calculate the leakage value corresponding to actual pressure again, and corresponding compliance value is derived by the estimated value of this leakage rate, this
It is larger with the error of actual value that mode easily causes estimated value, leads to calculate not accurate enough.
Based on foregoing description, need the measuring method wanting a kind of anesthesia machine system loop compliance and leakage rate badly, to solve
The estimated value being led to using the method for estimation in prior art is larger with the error of actual value, leads to calculate not accurate enough asking
Topic.
Content of the invention
For solving problems described above, it is an object of the invention to provide a kind of anesthesia machine system loop compliance and leakage
The measuring method of amount, the method can accurately be measured system circuit compliance and leakage rate, greatly reduce error.
For solving above-mentioned technical problem, the present invention employs the following technical solutions：
A kind of anesthesia machine system loop compliance and the measuring method of leakage rate, comprise the following steps：
Step S00, control unit control purging device to inflate to the air flue of anesthetic machine according to first flow Q1, pressure simultaneously
Sensor detects the pressure value P in air flue, and pressure value P is passed to control unit, and control unit judges the pressure in air flue
Whether value P reaches the first preset value P10, if it is, control unit controls purging device to stop inflating to air flue, closed system
Loop；
Step S10, control unit judge whether the time stopping ventilation reaching the first Preset Time △ T1, if it is,
The pressure transducer detection now pressure value P 11 in air flue, and this detected value is passed to control unit；
The first preset value P10's in pressure value P 11 in step S20, control unit calculation procedure S10 and step S00
Difference, obtains the airway pressure difference △ P1 in the first Preset Time △ T1；
Step S30, control unit are according to airway pressure difference △ calculating in default compliance value C1 and step S20
P1, calculates starting leakage value Lleak；
Step S40, control unit control effusion meter to inflate to air flue according to second flow Q2, and pressure transducer detects air flue
Interior pressure value P 2, and this pressure value P 2 is passed to control unit, judging unit judges whether the pressure value P 2 in air flue reaches
To the second preset value P20, if it is, control unit controls effusion meter to stop inflating to air flue, and effusion meter is second flow
Q2 passes to control unit；
Step S50, control unit judge whether the time stopping ventilation reaching the second Preset Time △ T2, if it is, pressure
Force transducer detects the pressure value P 21 in air flue, and this detected value is passed to control unit；
The second preset value P20 in pressure value P 21 in step S60, control unit calculation procedure S50 and step S40
Difference, obtain the airway pressure difference △ P2 in the second Preset Time △ T2；
Step S70, control unit are according to second flow Q2 in step S40, airway pressure difference △ in step S60
Starting leakage value L in P2, and step S30leak, calculate new compliance value C2；
The default compliance value in new compliance value C2 and step S30 in step S80, control unit calculation procedure S70
The meansigma methodss of C1, obtain compliance meansigma methodss C3；
Step S90, again execution step S00 to step S80, and using compliance meansigma methodss C3 as new in step S30
Default compliance value, calculate new leakage value and new compliance meansigma methodss C5；
It is poor with new compliance meansigma methodss C5 calculating again that step S100, control unit judge compliance meansigma methodss C3
Whether the absolute value of value exceedes preset value △ C, if be less than, execution step S110, otherwise, then with new compliance meansigma methodss
C5 as default compliance value, and again execution step S00 to step S90；
Step S110, control unit are using new compliance meansigma methodss C5 calculating again in step S90 as final
Compliance value, and be calculated final leakage value according to new compliance meansigma methodss C5.
Preferably, step S00 comprises the following steps：
Step S01, control unit control purging device to inflate to the air flue of anesthetic machine according to first flow Q1；
Step S02, control unit control pressure sensor detect the pressure value P in air flue, and pressure value P is passed to control
Unit processed；
Step S03, control judge whether the pressure value P in air flue reaches the first preset value P10, if it is, executing step
Rapid S04, otherwise, continues executing with step S01；
Step S04, control unit control purging device to stop to the air flue inflation of anesthetic machine.
Preferably, step S40 comprises the following steps：
Step S41, control unit control effusion meter to inflate to air flue with second flow Q2；
Step S42, control unit control pressure sensor detect the pressure value P 2 in air flue, and the pressure value detecting
P2 passes to control unit；
Step S43, control unit judge whether the pressure value P 2 in air flue reaches the second preset value P20, if it is, holding
Row step S44, otherwise, execution step S41；
Step S44, control unit control effusion meter to stop inflating to air flue.
Preferably, in step s 30, leakage rate LleakComputing formula be Lleak=△ P1*C1.
Preferably, in step S70, the computing formula of new compliance value C2 is C2=(Q2-Lleak)/△P2.
Preferably, in step S00, the electromagnetic valve that purging device used carries for anesthetic machine.
Preferably, in step s 40, the flow being used is calculated as electronic flowmeter.
Preferably, in step s 40, the flow being used is calculated as suspended body flowmeter.
Preferably, in step s 40, described flow is calculated as what anesthetic machine carried.
Preferably, in step s 40, outside described effusion meter is independent of anesthetic machine.
Beneficial effects of the present invention are, the measuring method due to present system loop compliance and leakage rate is, first
Secondary test provides driving gas first by the electromagnetic valve of anesthetic machine, gives a default compliance value, according to airway pressure
Change difference obtain corresponding leakage value using the leakage value that is previously obtained and airway pressure difference obtain one new
Compliance value；Second test is provided using independent electronic flowmeter and drives gas, using the leakage value being previously obtained
And airway pressure difference obtains a new compliance value, after this two compliance values are averaged, calculate leakage rate again
Value and compliance value, carry out, according to this process, the calculating that iterates, until deriving compliance value and the leakage value of reality,
Because this method is according to measured data Step wise approximation real system compliance value and leakage value, can solve the problem that in this way
In the case of being difficult to determine accurate parameter value, condition based on experimental data, finds its variation tendency, thus deriving standard
True data value.
Brief description
System circuit compliance and the flow chart of the measuring method of leakage rate that Fig. 1 provides for the present invention.
Specific embodiment
To further illustrate technical scheme below by specific embodiment.
The present invention mainly using in front and back twice system circuit is carried out ventilation test, by compliance value and leakage value meter
Calculate formula mutually to be derived using iterative manner, according to measured data Step wise approximation real system compliance value and leakage rate
Value.The method can solve the problem that in the case of being difficult to determine accurate parameter value, and condition based on experimental data finds its change
Trend, thus derive accurate data value.
The detailed process of technical solution of the present invention is as follows：Test for the first time provides drive gas using the electromagnetic valve of anesthetic machine
Body, according to a previously given default compliance value, the change difference further according to airway pressure obtains corresponding leakage rate
Value；Second test is provided using independent electronic flowmeter and drives gas, using the leakage value being previously obtained and air flue
Pressure difference value obtains a new compliance value, calculates leakage value again and comply with after this two compliance values are averaged
Property value, the calculating then according to this process carries out iterating, can derive reality compliance value and leakage value.
Corresponding computing formula：
Leakage rate=compliance value * airway pressure difference；
Compliance value=(electronic flowmeter flow leakage rate)/airway pressure difference；
New compliance value=(the compliance value of the compliance value of last computation+this calculating)/2；
Initial value be compliance default setting value, carry out, according to above three formula, the calculating that iterates, you can by terms of
Calculate compliance value and the leakage value of reality.
System circuit compliance and the flow chart of the measuring method of leakage rate that Fig. 1 provides for the present invention.As shown in figure 1,
This kind of anesthesia machine system loop compliance and the measuring method of leakage rate, comprise the following steps：
Step S00, the purging device to anesthetic machine add certain magnitude of voltage, and in the present embodiment, driving means are fiber crops
The electromagnetic valve that liquor-saturated machine carries, this magnitude of voltage is 300 millivolts, and electromagnetic valve can be with Q1, preferably under this 300 millivolts given of magnitude of voltage
Flow for 5L/min provides to air flue and drives gas.Certainly, the voltage being carried in electromagnetic valve two ends can also be other values, control
Electromagnetic valve processed is inflated to air flue with other flow values.Now, manometric display numerical value can rise, and control unit control pressure passes
Sensor detects the pressure value P in air flue, and the pressure value P value of detection is passed to control unit, and control unit judges in air flue
Pressure value P whether reach the first preset value P10.In the present embodiment, the first preset value P10 value is 30cmH2O, certainly,
Other values can also be taken.When reaching preset value 30cmH2After O, then control unit sends signal to electronic flowmeter, makes electromagnetic valve
Stop supply, closed system loop；Without reaching preset value 30cmH2O, then continue to control purging device to inflate to air flue.
Step S10, from stopping the inflation moment, timing unit starts timing, and judging unit judges to stop the time of ventilation
Whether reach the first Preset Time △ T1.In the present embodiment, the first Preset Time △ T1 value is 15S, it is of course also possible to take
Other values.After reaching 15S, then pressure transducer detects the pressure value P 11 in air flue, and it is single that this detected value is passed to control
Unit.
The first preset value P10's in pressure value P 11 in step S20, control unit calculation procedure S10 and step S00
Difference, obtains the airway pressure difference △ P1 in Preset Time △ T1.
Step S30, control unit are according to airway pressure difference △ calculating in default compliance value C1 and step S20
P1, further according to formula Lleak=△ P1*C1, calculates leakage value Lleak.
Step S40, control unit control effusion meter with Q2, and the preferably flow of 1.5L/min is inflated to air flue, certainly,
Can inflate other flow values to air flue, control unit control pressure sensor detects the pressure value P 2 in air flue, and this is pressed
Force value P2 passes to control unit, and judging unit judges whether the pressure value P 2 in air flue reaches the second preset value P20, works as air flue
When pressure is not up to the second preset value P20, then effusion meter is controlled to continue to be inflated to air flue；When airway pressure, to reach second pre-
If after value P20, control unit sends signal to electronic flowmeter, makes electronic flowmeter stop supply, and controls effusion meter the
Two flow Q2 pass to control unit.In the present embodiment, the second preset value P20 value is 30cmH2O, it is of course also possible to take
Other values.
Step S50, after stopping inflation, timing unit starts timing, and control unit judges that the time stopping ventilation is
No reach the second Preset Time △ T2, if it is, control unit control pressure sensor detect air flue in pressure value P 21,
And this detected value is passed to control unit.In the present embodiment, the second Preset Time △ T2 value is 15S.
The second preset value P20 in pressure value P 21 in step S60, control unit calculation procedure S50 and step S40
Difference, obtain the airway pressure difference △ P2 in the second Preset Time △ T2.
Step S70, control unit are according to second flow Q2 in step S40, airway pressure difference △ in step S60
Starting leakage value L in P2, and step S30leak, according to formula C2=(Q2-Lleak)/△ P2, calculates new compliance value
C2.
Step S80, control unit are according to formula C3=(C2+C1)/2, new compliance value C2 in calculation procedure S70 and step
Compliance meansigma methodss C3 of default compliance value C1 in rapid S30.
Step S90, again execution step S00, to step S80, are inflated toward in air flue, and after the completion of inflation, detection is through default
Pressure value P 12 in air flue after time △ T1, and according to the first preset value P10, calculate in the first Preset Time △ T1
Airway pressure difference △ Pi.Afterwards using compliance meansigma methodss C3 as new default compliance value, according to formula：Lleak-1=C3*
△ Pi, calculates new leakage value Lleak-1.Control unit controls effusion meter to inflate to air flue again, and records airway pressure and reach
To second flow Q2 during the second preset value P20, and detect the pressure value P 22 in air flue after the second Preset Time △ T2,
According to the second preset value P20, calculate the airway pressure difference △ Pj in the second Preset Time △ T2, according to second flow Q2,
Pressure difference value △ P3, new leakage value Lleak-1, using formula：C4=(Q2 Lleak-1)/△ Pj, calculates new compliance
Value C4.Control unit is according to formula C5=(C3+C4)/2 afterwards, calculates the average of new compliance value C4 and default compliance value C3
Value C5.Calculating then goes to step S100.
It is poor with new compliance meansigma methodss C5 calculating again that step S100, judging unit judge compliance meansigma methodss C3
Whether the absolute value of value exceedes preset value △ C, if be less than, execution step S110, and otherwise, then execution step S00 is to step
S90.In the present embodiment, default value △ C can be 0.1 or 0.2.
Step S110, control unit are using new compliance meansigma methodss C5 calculating again in step S90 as final
Compliance value, and according to formula：Lfinal=C5* △ Pj, calculates final leakage value Lfinal.
In the present embodiment, the effusion meter being used can be electronic flowmeter, it is possible to use suspended body flowmeter provides
Drive gas, or other driving sources of the gas can also be adopted；Can carrying for anesthetic machine or independent of anesthetic machine
Outside, as long as can accurately calculate corresponding flow value can use.
System above loop compliance and the measuring method of leakage rate, before solving, the detection mode of leakage rate is easily made
Become estimated value larger with the error of actual value, lead to calculate not accurate enough problem.System circuit can accurately be measured suitable
Answering property and leakage rate.
Describe the know-why of the present invention above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed to by any way.Based on explanation herein, the technology of this area
Personnel do not need to pay other specific embodiments that performing creative labour can associate the present invention, and these modes fall within
Within protection scope of the present invention.
Claims (10)
1. the measuring method of a kind of anesthesia machine system loop compliance and leakage rate is it is characterised in that comprise the following steps：
Step S00, control unit control purging device to inflate to the air flue of anesthetic machine according to first flow Q1, pressure sensing simultaneously
Device detects the pressure value P in air flue, and pressure value P is passed to control unit, and control unit judges that the pressure value P in air flue is
No reach the first preset value P10, if it is, control unit control purging device stop to air flue inflate, closed system loop；
Step S10, control unit judge whether the time stopping ventilation reaching the first Preset Time △ T1, if it is, pressure
The sensor detection now pressure value P 11 in air flue, and this detected value is passed to control unit；
The difference of the first preset value P10 in the pressure value P 11 in step S20, control unit calculation procedure S10 and step S00,
Obtain the airway pressure difference △ P1 in the first Preset Time △ T1；
Step S30, control unit according to the airway pressure difference △ P1 calculating in default compliance value C1 and step S20,
Calculate starting leakage value Lleak；
Step S40, control unit control effusion meter to inflate to air flue according to second flow Q2, in pressure transducer detection air flue
Pressure value P 2, and this pressure value P 2 is passed to control unit, judging unit judges whether the pressure value P 2 in air flue reaches
Two preset value P20, if it is, control unit controls effusion meter to stop inflating to air flue, and effusion meter passes second flow Q2
Pass control unit；
Step S50, control unit judge whether the time stopping ventilation reaching the second Preset Time △ T2, if it is, pressure passes
Sensor detects the pressure value P 21 in air flue, and this detected value is passed to control unit；
The difference of the second preset value P20 in the pressure value P 21 in step S60, control unit calculation procedure S50 and step S40
Value, obtains the airway pressure difference △ P2 in the second Preset Time △ T2；
Step S70, control unit according to second flow Q2 in step S40, the airway pressure difference △ P2 in step S60, with
And the starting leakage value L in step S30leak, calculate new compliance value C2；
Default compliance value C1 in new compliance value C2 and step S30 in step S80, control unit calculation procedure S70
Meansigma methodss, obtain compliance meansigma methodss C3；
Step S90, again execution step S00 to step S80, and using compliance meansigma methodss C3 as new pre- in step S30
If compliance value, calculate new leakage value and new compliance meansigma methodss C5；
Step S100, control unit judge compliance meansigma methodss C3 and the new compliance meansigma methodss C5 difference calculating again
Whether absolute value exceedes preset value △ C, if be less than, execution step S110, and otherwise, then made with new compliance meansigma methodss C5
For preset compliance value, and again execution step S00 to step S90；
Step S110, control unit are using new compliance meansigma methodss C5 calculating again in step S90 as final suitable
Answering property value, and it is calculated final leakage value according to new compliance meansigma methodss C5.
2. the measuring method of anesthesia machine system loop compliance according to claim 1 and leakage rate is it is characterised in that walk
Rapid S00 comprises the following steps：
Step S01, control unit control purging device to inflate to the air flue of anesthetic machine according to first flow Q1；
Step S02, control unit control pressure sensor detect the pressure value P in air flue, and it is single that pressure value P is passed to control
Unit；
Step S03, control judge whether the pressure value P in air flue reaches the first preset value P10, if it is, execution step
S04, otherwise, continues executing with step S01；
Step S04, control unit control purging device to stop to the air flue inflation of anesthetic machine.
3. the measuring method of anesthesia machine system loop compliance according to claim 1 and leakage rate is it is characterised in that walk
Rapid S40 comprises the following steps：
Step S41, control unit control effusion meter to inflate to air flue with second flow Q2；
Step S42, control unit control pressure sensor detect the pressure value P 2 in air flue, and the pressure value P 2 detecting is passed
Pass control unit；
Step S43, control unit judge whether the pressure value P 2 in air flue reaches the second preset value P20, if it is, executing step
Rapid S44, otherwise, execution step S41；
Step S44, control unit control effusion meter to stop inflating to air flue.
4. anesthesia machine system loop compliance according to claim 1 and leakage rate measuring method it is characterised in that：?
In step S30, leakage rate LleakComputing formula be Lleak=△ P1*C1.
5. anesthesia machine system loop compliance according to claim 1 and leakage rate measuring method it is characterised in that：?
In step S70, the computing formula of new compliance value C2 is C2=(Q2-Lleak)/△P2.
6. anesthesia machine system loop compliance according to claim 1 and leakage rate measuring method it is characterised in that：?
In step S00, the electromagnetic valve that purging device used carries for anesthetic machine.
7. anesthesia machine system loop compliance according to claim 1 and leakage rate measuring method it is characterised in that：?
In step S40, the flow being used is calculated as electronic flowmeter.
8. anesthesia machine system loop compliance according to claim 1 and leakage rate measuring method it is characterised in that：?
In step S40, the flow being used is calculated as suspended body flowmeter.
9. anesthesia machine system loop compliance according to claim 1 and leakage rate measuring method it is characterised in that：?
In step S40, described flow is calculated as the effusion meter that anesthetic machine carries.
10. anesthesia machine system loop compliance according to claim 1 and leakage rate measuring method it is characterised in that：
In step s 40, outside described effusion meter is independent of anesthetic machine.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880281B (en) * | 2014-02-28 | 2019-10-29 | 北京谊安医疗系统股份有限公司 | Outer airtight test device |
| CN104880284B (en) * | 2014-02-28 | 2019-10-29 | 北京谊安医疗系统股份有限公司 | Interior airtight test device |
| CN106706354B (en) * | 2016-12-29 | 2023-07-21 | 南京舒普思达医疗设备有限公司 | Safety and performance detection equipment for inhalation type anesthesia system |
| CN108663171A (en) * | 2017-03-30 | 2018-10-16 | 迈得医疗工业设备股份有限公司 | The air-tightness detection method of medical product and the air tightness detection system of medical product |
| CN114235302B (en) * | 2021-11-16 | 2024-02-06 | 北京谊安医疗系统股份有限公司 | Method for detecting leakage amount of ventilation loop |
| CN115326314B (en) * | 2022-10-10 | 2023-01-13 | 西南医科大学附属医院 | Machine control leakage test control system of anesthesia machine |
| CN118681101B (en) * | 2024-06-21 | 2025-07-15 | 深圳麦科田生物医疗技术股份有限公司 | Pulmonary function parameter detection method and anesthesia machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5161406A (en) * | 1990-02-08 | 1992-11-10 | Instrumentarium Corp. | Identification method for a gas flow and its disturbances |
| US5778874A (en) * | 1996-10-02 | 1998-07-14 | Thomas Jefferson University | Anesthesia machine output monitor |
| CN101467880A (en) * | 2007-12-28 | 2009-07-01 | 北京谊安医疗系统股份有限公司 | Method for improving tidal volume control and detection accuracy by introducing R value for calculation |
| 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 |
| CN102012243A (en) * | 2010-09-26 | 2011-04-13 | 深圳市百格医疗技术有限公司 | Method for detecting gas leakage quantity of medical instrument with respiration loop |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7128578B2 (en) * | 2002-05-29 | 2006-10-31 | University Of Florida Research Foundation, Inc. | Interactive simulation of a pneumatic system |
-
2013
- 2013-03-29 CN CN201310109016.1A patent/CN104075856B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5161406A (en) * | 1990-02-08 | 1992-11-10 | Instrumentarium Corp. | Identification method for a gas flow and its disturbances |
| US5778874A (en) * | 1996-10-02 | 1998-07-14 | Thomas Jefferson University | Anesthesia machine output monitor |
| CN101467880A (en) * | 2007-12-28 | 2009-07-01 | 北京谊安医疗系统股份有限公司 | Method for improving tidal volume control and detection accuracy by introducing R value for calculation |
| 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 |
| CN102012243A (en) * | 2010-09-26 | 2011-04-13 | 深圳市百格医疗技术有限公司 | Method for detecting gas leakage quantity of medical instrument with respiration loop |
Non-Patent Citations (1)
| Title |
|---|
| 麻醉呼吸回路结构对呼吸监测的影响;徐景岗;《现代医学仪器与应用 》;19971231;第9卷(第3期);第13-16页 * |
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