CN104075856A - 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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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 the air feeding flow Q and a second formula, namely C2=(Q-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, more specifically, relate to the measuring method of a kind of anesthesia machine system loop compliance and leakage rate.
Background technology
Compliance and leakage rate are two important parameters that Anesthesia machine can normally be worked, and have very important impact for the precision of accurate control and calculating tidal volume.Wherein, compliance refers to the change of capacity under unit pressure effect, i.e. compliance=capacity change/pressure change; Leakage rate refers to the total amount of system circuit Leakage Gas under certain pressure effect, can adopt following formula to calculate, and leakage rate=system circuit compliance * pressure of system circuit changes difference.
The detection of leakage rate is at present mainly to adopt maximum pressure and minimum pressure to estimate respectively corresponding leakage value, calculate again the corresponding leakage value of actual pressure, and the estimated value of leakage rate is derived corresponding compliance value thus, this mode easily causes the error of estimated value and actual value larger, causes calculating not accurate enough.
Based on foregoing description, need the measuring method of wanting a kind of anesthesia machine system loop compliance and leakage rate badly, larger to solve the error of estimated value that the method for available technology adopting estimation causes and actual value, cause calculating not accurate enough problem.
Summary of the invention
For solving the above problem, the object of the present invention is to provide the measuring method of a kind of anesthesia machine system loop compliance and leakage rate, the method can be measured system circuit compliance and leakage rate accurately, greatly reduces error.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A measuring method for anesthesia machine system loop compliance and leakage rate, comprises the following steps:
The air flue inflation to Anesthesia machine according to first flow Q1 of step S00, control module control purging device, pressure transducer detects the pressure value P in air flue simultaneously, and pressure value P is passed to control module, control module judges whether the pressure value P in air flue reaches the first preset value P10, if, control module control purging device stops to air flue inflation, closed system loop;
Whether the time that the judgement of step S10, control module stops ventilation reaching the first Preset Time △ T1, and if so, pressure transducer detects the pressure value P 11 in air flue now, and this detected value is passed to control module;
The difference of pressure value P 11 in step S20, control module calculation procedure S10 and the first preset value P10 in step S00, obtains the airway pressure difference △ P1 in the first Preset Time △ T1;
Step S30, control module, according to the airway pressure difference △ P1 calculating in default compliance value C1 and step S20, calculate starting leakage value L
leak;
Step S40, control module control flowmeter are inflated to air flue according to the second flow Q2, pressure transducer detects the pressure value P 2 in air flue, and this pressure value P 2 is passed to control module, judging unit judges whether the pressure value P 2 in air flue reaches the second preset value P20, if, control module control flowmeter stops to air flue inflation, and flowmeter passes to control module aerated flow value Q2;
Whether the time that step S50, control module judgement stop ventilation reaching the second Preset Time △ T2, and if so, pressure transducer detects the pressure value P 21 in air flue, and this detected value is passed to control module;
The difference of pressure value P 21 in step S60, control module calculation procedure S50 and the second preset value P20 in step S40, obtains the airway pressure difference △ P2 in the second Preset Time △ T2;
Step S70, control module be according to the aerated flow value Q2 in step S40, the airway pressure difference △ P2 in step S60, and starting leakage value L in step S30
leak, calculate the compliance value C2 that makes new advances;
The mean value of default compliance value C1 in new compliance value C2 and step S30 in step S80, control module calculation procedure S70, obtains compliance mean value C3;
Step S90, again perform step S00 to step S80, and using compliance mean value C3 the new default compliance value in step S30, calculate the leakage value that makes new advances and new compliance mean value C5;
Step S100, control module judge whether compliance mean value C3 and the absolute value of the new compliance mean value C5 difference again calculating exceed preset value △ C, if be no more than, execution step S110, otherwise, using new compliance mean value C5 as default compliance value, and again perform step S00 to step S90;
Step S110, control module be using the new compliance mean value C5 again calculating in step S90 as final compliance value, and calculate final leakage value according to new compliance mean value C5.
As preferably, step S00 comprises the following steps:
The air flue inflation to Anesthesia machine according to first flow Q1 of step S01, control module control purging device;
Step S02, control module controlled pressure sensor detect the pressure value P in air flue, and pressure value P are passed to control module;
Step S03, control judge whether the pressure value P in air flue reaches the first preset value P10, if so, performs step S04, otherwise, continue execution step S01;
Step S04, control module control purging device stop the air flue inflation to Anesthesia machine.
As preferably, step S40 comprises the following steps:
Step S41, control module control flowmeter are inflated to air flue with the second flow Q2;
Step S42, control module controlled pressure sensor detect the pressure value P 2 in air flue, and the pressure value P 2 detecting is passed to control module;
Step S43, control module judge whether the pressure value P 2 in air flue reaches the second preset value P20, if so, performs step S44, otherwise, execution step S41;
Step S44, control module control flowmeter stop inflating to air flue.
As preferably, in step S30, leakage rate L
leakcomputing formula be L
leak=△ P1*C1.
As preferably, in step S70, the computing formula of new compliance value C2 is C2=(Q2-L
leak)/△ P2.
As preferably, in step S00, purging device used is the solenoid valve that Anesthesia machine carries.
As preferably, in step S40, the flow using is counted electronic flow-meter.
As preferably, in step S40, the flow using is counted suspended body flowmeter.
As preferably, in step S40, described flow counts that Anesthesia machine carries.
As preferably, in step S40, described flowmeter is independent of outside Anesthesia machine.
Beneficial effect of the present invention is, because the measuring method of system circuit compliance of the present invention and leakage rate is, first test is for the first time used the solenoid valve of Anesthesia machine that driving gas is provided, a given default compliance value, obtains corresponding leakage value according to the variation difference of airway pressure and uses the leakage value and the airway pressure difference that obtain to obtain a new compliance value above, test is for the second time used independently electronic flow-meter that driving gas is provided, use the leakage value and the airway pressure difference that obtain to obtain a new compliance value above, after these two compliance values are averaged, again calculate and leak value and compliance value, according to the calculating that iterates of this process, until derive actual compliance value and leak value, because this method is according to progressively system compliance value and the leakage value of approaching to reality of measured data, so the method can solve in the situation that being difficult to determine accurate parameter value, taking experimental data as basic condition, find its variation tendency, thereby derive data value accurately.
Brief description of the drawings
Fig. 1 is the process flow diagram of the measuring method of system circuit compliance provided by the invention and leakage rate.
Embodiment
Further illustrate technical scheme of the present invention below by embodiment.
The twice pair of system circuit test of ventilate before and after the present invention mainly adopts, adopts iterative manner mutually to derive by compliance value and the computing formula of leaking value, according to progressively system compliance value and the leakage value of approaching to reality of measured data.The method can solve in the situation that being difficult to determine accurate parameter value, taking experimental data as basic condition, finds its variation tendency, thereby derives data value accurately.
The detailed process of technical solution of the present invention is as follows: test is for the first time used the solenoid valve of Anesthesia machine that driving gas is provided, and according to given in advance one default compliance value, then obtains corresponding leakage value according to the variation difference of airway pressure; Test is for the second time used independently electronic flow-meter that driving gas is provided, use the leakage value and the airway pressure difference that obtain to obtain a new compliance value above, after these two compliance values are averaged, again calculate and leak value and compliance value, then according to the calculating that iterates of this process, can derive actual compliance value and leak value.
Corresponding computing formula:
Leakage rate=compliance value * airway pressure difference;
Compliance value=(electronic flow-meter Liu Liang – leakage rate)/airway pressure difference;
New compliance value=(the compliance value of compliance value+this calculating of last computation)/2;
Initial value is the default setting value of compliance, according to the calculating that iterates of three formula above, can calculate actual compliance value and leak value.
Fig. 1 is the process flow diagram of the measuring method of system circuit compliance provided by the invention and leakage rate.As shown in Figure 1, the measuring method of this kind of anesthesia machine system loop compliance and leakage rate, comprises the following steps:
Step S00, add certain magnitude of voltage to the purging device of Anesthesia machine, in the present embodiment, drive unit is the solenoid valve that Anesthesia machine carries, this magnitude of voltage is 300 millivolts, solenoid valve can be with Q1 under 300 millivolts of this given magnitudes of voltage, and the flow that is preferably 5L/min provides driving gas to air flue.Certainly, the voltage that is carried in solenoid valve two ends can be also other value, controls solenoid valve and inflates to air flue with other flow value.Now, manometric demonstration numerical value can rise, and control module controlled pressure sensor detects the pressure value P in air flue, and the pressure value P value detecting is passed to control module, and control module judges whether the pressure value P in air flue reaches the first preset value P10.In the present embodiment, the first preset value P10 value is 30cmH2O, certainly, also can get other value.When reaching after preset value 30cmH2O, control module sends signal to electronic flow-meter, makes solenoid valve end air feed, closed system loop; If do not reach preset value 30cmH2O, continue to control purging device and inflate to air flue.
Step S10, from stopping inflating the moment, timing unit starts timing, whether the time that judging unit judgement stops ventilation reaching the first Preset Time △ T1.In the present embodiment, the first Preset Time △ T1 value is 15S, certainly, also can get other value.When arriving after 15S, pressure transducer detects the pressure value P 11 in air flue, and this detected value is passed to control module.
The difference of pressure value P 11 in step S20, control module calculation procedure S10 and the first preset value P10 in step S00, obtains out the airway pressure difference △ P1 in Preset Time △ T1.
The airway pressure difference △ P1 calculating in step S30, the default compliance value C1 of control module basis and step S20, then according to formula L
leak=△ P1*C1, calculates and leaks value L
leak.
Step S40, control module control flowmeter are with Q2, the flow that is preferably 1.5L/min is inflated to air flue, certainly, also can inflate to air flue by other flow value, control module controlled pressure sensor detects the pressure value P 2 in air flue, and this pressure value P 2 is passed to control module, and judging unit judges whether the pressure value P 2 in air flue reaches the second preset value P20, in the time that airway pressure does not reach the second preset value P20, control flowmeter and continue to inflate to air flue; When airway pressure reaches after the second preset value P20, control module sends signal to electronic flow-meter, makes electronic flow-meter end air feed, and control flowmeter passes to control module aerated flow value Q2.In the present embodiment, the second preset value P20 value is 30cmH2O, certainly, also can get other value.
Step S50, since stop inflation after, timing unit starts timing, and whether the time that control module judgement stops ventilation reaching the second Preset Time △ T2, if, control module controlled pressure sensor detects the pressure value P 21 in air flue, and this detected value is passed to control module.In the present embodiment, the second Preset Time △ T2 value is 15S.
The difference of pressure value P 21 in step S60, control module calculation procedure S50 and the second preset value P20 in step S40, obtains the airway pressure difference △ P2 in the second Preset Time △ T2.
Step S70, control module be according to the aerated flow value Q2 in step S40, the airway pressure difference △ P2 in step S60, and starting leakage value L in step S30
leak, according to formula C2=(Q2-L
leak)/△ P2, calculates the compliance value C2 that makes new advances.
Step S80, control module are according to formula C3=(C2+C1)/2, the compliance mean value C3 of the default compliance value C1 in new compliance value C2 and step S30 in calculation procedure S70.
Step S90, again perform step S00 to step S80, in air flue, inflate, after having inflated, detect through the pressure value P 12 in air flue after Preset Time △ T1, and according to the first preset value P10, calculate the airway pressure difference △ Pi in the first Preset Time △ T1.Afterwards using compliance mean value C3 as new default compliance value, according to formula: L
leak-1=C3* △ Pi, calculates new leakage value L
leak-1.Control module control flowmeter is inflated to air flue again, and aerated flow value Q2 when recording airway pressure and reaching the second preset value P20, and detection 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 aerated flow value Q2, pressure difference value △ P3, new leakage value L
leak-1, utilize formula: C4=(Q2 – L
leak-1)/△ Pj, calculates the compliance value C4 making new advances.Control module is according to formula C5=(C3+C4 afterwards)/2, the mean value C5 of new compliance value C4 and default compliance value C3 calculated.Calculate and then forward step S100 to.
Step S100, judging unit judge whether compliance mean value C3 and the absolute value of the new compliance mean value C5 difference again calculating exceed preset value △ C, if be no more than, and execution step S110, otherwise, perform step S00 to step S90.In the present embodiment, default value △ C can be 0.1, can be also 0.2.
Step S110, control module be using the new compliance mean value C5 again calculating in step S90 as final compliance value, and according to formula: L
final=C5* △ Pj, calculates final leakage value L
final.
In the present embodiment, the flowmeter using can be electronic flow-meter, also can use suspended body flowmeter that driving gas is provided, or also can adopt other driving source of the gas; Can carry for Anesthesia machine, also can, for to be independent of outside Anesthesia machine, can use as long as can accurately calculate corresponding flow value.
The measuring method of above system circuit compliance and leakage rate, the detection mode that has solved former leakage rate easily causes the error of estimated value and actual value larger, causes calculating not accurate enough problem.Can measure accurately system circuit compliance and leakage rate.
Know-why of the present invention has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present invention, and can not be interpreted as by any way limiting the scope of the invention.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, within these modes all will fall into protection scope of the present invention.
Claims (10)
1. a measuring method for anesthesia machine system loop compliance and leakage rate, is characterized in that, comprises the following steps:
The air flue inflation to Anesthesia machine according to first flow Q1 of step S00, control module control purging device, pressure transducer detects the pressure value P in air flue simultaneously, and pressure value P is passed to control module, control module judges whether the pressure value P in air flue reaches the first preset value P10, if, control module control purging device stops to air flue inflation, closed system loop;
Whether the time that the judgement of step S10, control module stops ventilation reaching the first Preset Time △ T1, and if so, pressure transducer detects the pressure value P 11 in air flue now, and this detected value is passed to control module;
The difference of pressure value P 11 in step S20, control module calculation procedure S10 and the first preset value P10 in step S00, obtains the airway pressure difference △ P1 in the first Preset Time △ T1;
Step S30, control module, according to the airway pressure difference △ P1 calculating in default compliance value C1 and step S20, calculate starting leakage value L
leak;
Step S40, control module control flowmeter are inflated to air flue according to the second flow Q2, pressure transducer detects the pressure value P 2 in air flue, and this pressure value P 2 is passed to control module, judging unit judges whether the pressure value P 2 in air flue reaches the second preset value P20, if, control module control flowmeter stops to air flue inflation, and flowmeter passes to control module aerated flow value Q2;
Whether the time that step S50, control module judgement stop ventilation reaching the second Preset Time △ T2, and if so, pressure transducer detects the pressure value P 21 in air flue, and this detected value is passed to control module;
The difference of pressure value P 21 in step S60, control module calculation procedure S50 and the second preset value P20 in step S40, obtains the airway pressure difference △ P2 in the second Preset Time △ T2;
Step S70, control module be according to the aerated flow value Q2 in step S40, the airway pressure difference △ P2 in step S60, and starting leakage value L in step S30
leak, calculate the compliance value C2 that makes new advances;
The mean value of default compliance value C1 in new compliance value C2 and step S30 in step S80, control module calculation procedure S70, obtains compliance mean value C3;
Step S90, again perform step S00 to step S80, and using compliance mean value C3 the new default compliance value in step S30, calculate the leakage value that makes new advances and new compliance mean value C5;
Step S100, control module judge whether compliance mean value C3 and the absolute value of the new compliance mean value C5 difference again calculating exceed preset value △ C, if be no more than, execution step S110, otherwise, using new compliance mean value C5 as default compliance value, and again perform step S00 to step S90;
Step S110, control module be using the new compliance mean value C5 again calculating in step S90 as final compliance value, and calculate final leakage value according to new compliance mean value C5.
2. the measuring method of anesthesia machine system according to claim 1 loop compliance and leakage rate, is characterized in that, step S00 comprises the following steps:
The air flue inflation to Anesthesia machine according to first flow Q1 of step S01, control module control purging device;
Step S02, control module controlled pressure sensor detect the pressure value P in air flue, and pressure value P are passed to control module;
Step S03, control judge whether the pressure value P in air flue reaches the first preset value P10, if so, performs step S04, otherwise, continue execution step S01;
Step S04, control module control purging device stop the air flue inflation to Anesthesia machine.
3. the measuring method of anesthesia machine system according to claim 1 loop compliance and leakage rate, is characterized in that, step S40 comprises the following steps:
Step S41, control module control flowmeter are inflated to air flue with the second flow Q2;
Step S42, control module controlled pressure sensor detect the pressure value P 2 in air flue, and the pressure value P 2 detecting is passed to control module;
Step S43, control module judge whether the pressure value P 2 in air flue reaches the second preset value P20, if so, performs step S44, otherwise, execution step S41;
Step S44, control module control flowmeter stop inflating to air flue.
4. the measuring method of anesthesia machine system according to claim 1 loop compliance and leakage rate, is characterized in that: in step S30, and leakage rate L
leakcomputing formula be L
leak=△ P1*C1.
5. the measuring method of anesthesia machine system according to claim 1 loop compliance and leakage rate, is characterized in that: in step S70, the computing formula of new compliance value C2 is C2=(Q2-L
leak)/△ P2.
6. the measuring method of anesthesia machine system according to claim 1 loop compliance and leakage rate, is characterized in that: in step S00, purging device used is the solenoid valve that Anesthesia machine carries.
7. the measuring method of anesthesia machine system according to claim 1 loop compliance and leakage rate, is characterized in that: in step S40, the flow using is counted electronic flow-meter.
8. the measuring method of anesthesia machine system according to claim 1 loop compliance and leakage rate, is characterized in that: in step S40, the flow using is counted suspended body flowmeter.
9. the measuring method of anesthesia machine system according to claim 1 loop compliance and leakage rate, is characterized in that: in step S40, described flow is counted the flowmeter that Anesthesia machine carries.
10. the measuring method of anesthesia machine system according to claim 1 loop compliance and leakage rate, is characterized in that: in step S40, described flowmeter is independent of outside Anesthesia machine.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880284A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Inner airtight testing device |
| CN104880281A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Outer airtight testing device |
| CN106706354A (en) * | 2016-12-29 | 2017-05-24 | 南京舒普思达医疗设备有限公司 | Device for testing safety and performance of inhalational anaesthesia systems |
| 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 |
| CN114235302A (en) * | 2021-11-16 | 2022-03-25 | 北京谊安医疗系统股份有限公司 | Method for detecting leakage amount of ventilation loop |
| CN115326314A (en) * | 2022-10-10 | 2022-11-11 | 西南医科大学附属医院 | Machine control leakage test control system of anesthesia machine |
Citations (6)
| 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 |
| US20030233049A1 (en) * | 2002-05-29 | 2003-12-18 | Samsun Lampotang | Interactive simulation of a pneumatic system |
| 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 |
-
2013
- 2013-03-29 CN CN201310109016.1A patent/CN104075856B/en active Active
Patent Citations (6)
| 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 |
| US20030233049A1 (en) * | 2002-05-29 | 2003-12-18 | Samsun Lampotang | Interactive simulation of a pneumatic system |
| 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 |
|---|
| 徐景岗: "麻醉呼吸回路结构对呼吸监测的影响", 《现代医学仪器与应用 》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880284A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Inner airtight testing device |
| CN104880281A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Outer airtight testing 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 |
| 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 |
| CN106706354A (en) * | 2016-12-29 | 2017-05-24 | 南京舒普思达医疗设备有限公司 | Device for testing safety and performance of inhalational anaesthesia systems |
| 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 |
| CN114235302A (en) * | 2021-11-16 | 2022-03-25 | 北京谊安医疗系统股份有限公司 | Method for detecting leakage amount of ventilation loop |
| 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 |
| CN115326314A (en) * | 2022-10-10 | 2022-11-11 | 西南医科大学附属医院 | Machine control leakage test control system of anesthesia machine |
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