CN102114284A - Inhaling holding method for electrically powered electrically controlled ventilator - Google Patents
Inhaling holding method for electrically powered electrically controlled ventilator Download PDFInfo
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- CN102114284A CN102114284A CN2009102175616A CN200910217561A CN102114284A CN 102114284 A CN102114284 A CN 102114284A CN 2009102175616 A CN2009102175616 A CN 2009102175616A CN 200910217561 A CN200910217561 A CN 200910217561A CN 102114284 A CN102114284 A CN 102114284A
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Abstract
The invention provides an inhaling holding method for an electrically powered electrically controlled ventilator. The method comprises the following steps of: setting the electrically powered electrically controlled ventilator into a volume controlled ventilation working mode, and setting inhaling holding parameters; obtaining target inhaling time and target exhaling time during the ventilation of inhaling holding according to the inhaling holding parameters and the preset conventional respiratory parameters; and performing ventilation control according to the target inhaling time, the target exhaling time, the inhaling holding parameters and the conventional respiratory parameters. The inhaling holding method is applicable to the situation that the ventilator is in transit and has no compressed air sources, does not need medical staff to stay for operation, simplifies the manual operation of realizing an inhaling holding function, and ensures that the medical staff who perform lung function radiography are free from physical injury caused by high-intensity radiation, so the inhaling holding method solves the problems that a pneumatically powered electrically controlled ventilator in the prior art fails to be used under the condition of transit or no compressed air sources and has adverse effect on the health of the medical staff who perform lung function radiography.
Description
Technical field
The present invention relates to medical field, in particular to a kind of air-breathing maintenance method that is used for electric electricing breathing machine.
Background technology
A kind of pneumatic automatically controlled respirator is provided in the correlation technique, and this respirator needs compressed gas source and could work, and can realize air-breathing maintenance when air-breathing maintenance function key is pressed.
The inventor finds pneumatic automatically controlled respirator in the correlation technique owing to need compressed gas source could work, so transporting or do not having under the situation of compressed gas source and can't use; In addition, be prerequisite because the realization of its air-breathing maintenance function must be pressed air-breathing maintenance function key with medical personnel, so when having the pulmonary function radiography of high-level radiation, can have a negative impact to the medical personnel's that press this function key health always.
Summary of the invention
The present invention aims to provide a kind of air-breathing maintenance method that is used for electric electricing breathing machine, can solve pneumatic automatically controlled respirator in the correlation technique in transhipment or do not have under the situation of compressed gas source and can't use, and the problem that can have a negative impact to the medical personnel's that carry out the pulmonary function radiography health.
To achieve these goals, according to an aspect of the present invention, a kind of air-breathing maintenance method that is used for electric electricing breathing machine is provided, may further comprise the steps: electric electricing breathing machine is set to volume control ventilation (Volume Controlled Ventilation, abbreviate VCV as) mode of operation, and air-breathing maintenance parameter is set; Target inspiratory duration and target expiratory duration when calculating air-breathing maintenance ventilation according to air-breathing maintenance parameter and default conventional respiration parameter; According to the control of ventilating of target inspiratory duration, target expiratory duration, air-breathing maintenance parameter and conventional respiration parameter.
Preferably, in said method, air-breathing maintenance parameter comprises air-breathing retention time Ti
KeepWith air-breathing maintenance frequency of occurrences N.
Preferably, in said method, conventional respiration parameter comprises conventional inspiratory duration Ti
SetWith the air-breathing frequency F of routine.
Preferably, in said method, target inspiratory duration and target expiratory duration when calculating air-breathing maintenance ventilation according to air-breathing maintenance parameter and default conventional respiration parameter comprise: according to air-breathing retention time Ti
KeepWith conventional inspiratory duration Ti
SetCalculate target inspiratory duration Ti; According to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N, conventional air-breathing frequency F and conventional inspiratory duration Ti
SetCalculate target expiratory duration Te.
Preferably, in said method, according to air-breathing retention time Ti
KeepWith conventional inspiratory duration Ti
SetCalculating target inspiratory duration Ti comprises: with air-breathing retention time Ti
KeepWith conventional inspiratory duration Ti
SetAddition obtains target inspiratory duration Ti=Ti
Keep+ Ti
Set
Preferably, in said method, according to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N, conventional air-breathing frequency F and conventional inspiratory duration Ti
SetCalculating target expiratory duration Te comprises: according to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N and conventional air-breathing frequency F calculate (60-Ti
Keep* N)/F; Compare (60-Ti
Keep* N)/F and (Ti
Set+ Temin) size, wherein Temin is the minimum exhale time; If (60-Ti
Keep* N)/F＞Ti
Set+ Temin is then according to (60-Ti
Keep* N)/F and Ti
SetCalculate target expiratory duration Te=(60-Ti
Keep* N)/F-Ti
Set, Ti wherein
Keep, Temin, Ti
Set, Te unit be second.
Preferably, in said method, according to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N, conventional air-breathing frequency F and conventional inspiratory duration Ti
SetCalculating target expiratory duration Te comprises: according to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N and conventional air-breathing frequency F calculate (60-Ti
Keep* N)/F; Compare (60-Ti
Keep* N)/F and (Ti
Set+ Temin) size; If (60-Ti
Keep* N)/F≤Ti
Set+ Temin, target expiratory duration Te=Temin then, wherein, Temin, Ti
Keep, Ti
Set, Te unit be second.
Preferably, in said method, the control of ventilating comprises according to target inspiratory duration, target expiratory duration, air-breathing maintenance parameter and conventional respiration parameter: the respiration parameter that initial N of per minute breathing is set is: inspiratory duration is target inspiratory duration Ti, and expiratory duration is target expiratory duration Te; N the breathing respiration parameter afterwards that per minute is set is: inspiratory duration is conventional inspiratory duration Ti
Set, expiratory duration is target expiratory duration Te.
Preferably, in said method, the control of ventilating also comprises according to target inspiratory duration, target expiratory duration, air-breathing maintenance parameter and conventional respiration parameter: when electric electricing breathing machine carries out air-breathing maintenance ventilation, and the output information.
Preferably, in said method, when electric electricing breathing machine carried out air-breathing maintenance ventilation, the output information comprised: when electric electricing breathing machine carries out air-breathing maintenance ventilation, and slave computer notice host computer; Host computer is in warning message hurdle output information.
The foregoing description has been realized air-breathing maintenance ventilatory function on electric electricing breathing machine, because the work of electric electricing breathing machine does not need compressed air, so situation that is applicable in transit and does not have compressed gas source, and, air-breathing maintenance parameter carries out the automatic control of air-breathing maintenance ventilation by being set, need not the stay-at-home operation of medical personnel, simplified the manually-operated that realizes air-breathing maintenance function, make the medical personnel that carry out the pulmonary function radiography avoid the actual bodily harm that high-level radiation brings, so overcome pneumatic automatically controlled respirator in the correlation technique in transhipment or do not have under the situation of compressed gas source and can't use, and problem that can have a negative impact to the medical personnel's that carry out the pulmonary function radiography health.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the flow chart according to the air-breathing maintenance method of first embodiment of the invention.
The specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 1 shows the flow chart according to the air-breathing maintenance method of first embodiment of the invention, and this method may further comprise the steps:
Present embodiment at first electric electricing breathing machine is set to the VCV mode of operation, inspiratory flow rate keeps constant under this pattern, can measure the vapour lock and the compliance of lung, target inspiratory duration and target expiratory duration when calculating air-breathing maintenance ventilation according to air-breathing maintenance parameter and default conventional respiration parameter then are at last according to the control of ventilating of target inspiratory duration, target expiratory duration, air-breathing maintenance parameter and conventional respiration parameter.Present embodiment has been realized air-breathing maintenance ventilatory function on electric electricing breathing machine, because the work of electric electricing breathing machine does not need compressed air, so situation that is applicable in transit and does not have compressed gas source, and, air-breathing maintenance parameter carries out the automatic control of air-breathing maintenance ventilation by being set, need not the stay-at-home operation of medical personnel, simplified the manually-operated that realizes air-breathing maintenance function, make the medical personnel that carry out the pulmonary function radiography avoid the actual bodily harm that high-level radiation brings, so overcome pneumatic automatically controlled respirator in the correlation technique in transhipment or do not have under the situation of compressed gas source and can't use, and problem that can have a negative impact to the medical personnel's that carry out the pulmonary function radiography health.
Preferably, in said method, air-breathing maintenance parameter comprises that the user wishes the air-breathing retention time Ti that realizes
KeepWish the air-breathing maintenance frequency of occurrences N that realizes with the user, wherein N is the number of times that air-breathing maintenance occurs in a minute, Ti
KeepScope be generally 0-15S (second), promptly the user wishes to occur N such breathing in one minute: its inspiratory duration has more Ti than conventional inspiratory duration
Keep, this N time breathing is the breathing that contains air-breathing maintenance; And all the other times in one minute are all controlled ventilation according to conventional respiration parameter.Do like this, make the user to be provided with air-breathing maintenance ventilation, to satisfy different application demands according to present case.
Preferably, in said method, conventional respiration parameter comprises the conventional inspiratory duration Ti under the non-air-breathing hold mode
SetWith the air-breathing frequency F of routine, wherein, carry out the conventional number of times of breathing in one minute that F wishes for the user to realize.Because Ti
SetBe the conventional parameter of electric electricing breathing machine with F, can directly use original parameter value, also can dynamically adjust as required.Do like this, make the user to be provided with conventional ventilation, to satisfy different application demands according to present case.
Preferably, in said method, step 102 comprises: according to air-breathing retention time Ti
KeepWith conventional inspiratory duration Ti
SetCalculate target inspiratory duration Ti; According to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N, conventional air-breathing frequency F and conventional inspiratory duration Ti
SetCalculate target expiratory duration Te.In the present embodiment to target inspiratory duration Ti and conventional inspiratory duration Ti
SetCalculating basis expect air-breathing maintenance parameter (the air-breathing retention time Ti that reaches for the user
KeepWith air-breathing maintenance frequency of occurrences N) and default conventional respiration parameter (comprise conventional inspiratory duration Ti
SetWith the air-breathing frequency F of routine), the default conventional respiration parameter in electric electricing breathing machine, the user only need be provided with air-breathing retention time Ti
KeepGet final product with air-breathing maintenance frequency of occurrences N, make that the user's is easy and simple to handle.
Preferably, in said method, according to air-breathing retention time Ti
KeepWith conventional inspiratory duration Ti
SetThe formula that calculates target inspiratory duration Ti is:
Ti=Ti
Keep+ Ti
Set, (1)
Present embodiment calculates target inspiratory duration Ti by (1) formula, is about to air-breathing retention time Ti
KeepWith conventional inspiratory duration Ti
SetAddition obtains target inspiratory duration Ti, so in one minute time, contain that inspiratory duration should be controlled to be the Ti that is calculated by (1) formula in the breathing of air-breathing maintenance for N time; Inspiratory duration still was conventional inspiratory duration Ti during remaining was breathed
SetDo like this, realized calculating simplely target inspiratory duration Ti.
Preferably, in said method, according to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N, conventional air-breathing frequency F and conventional inspiratory duration Ti
SetCalculating target expiratory duration Te comprises: according to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N and conventional air-breathing frequency F calculate (60-Ti
Keep* N)/F; Compare (60-Ti
Keep* N)/F and (Ti
Set+ Temin) size, wherein Temin is the minimum exhale time, promptly in order to guarantee patient's eupnea, and the expiratory duration minima of regulation, the expiratory duration during breathing machine ventilation must guarantee greater than this minimum exhale time, i.e. Te 〉=Temin; If (60-Ti
Keep* N)/F＞Ti
Set+ Temin is then according to (60-Ti
Keep* N)/F and Ti
SetThe formula that calculates the target expiratory duration is:
Te=(60-Ti
Keep* N)/F-Ti
Set, (2)
Wherein, Te, Ti
Keep, Ti
Set, Te unit be S (second).
Present embodiment preferentially guarantees the air-breathing retention time when controlling, promptly in one minute time, and the preferential breathing that guarantees to occur to contain for N time air-breathing maintenance, and the inspiratory duration of this N time breathing is Ti=Ti
Keep+ Ti
Set＞Ti
SetSo conventional the breathing compared in the breathing that contains air-breathing maintenance for N time N time, taken (Ti more
Keep* N) time, and in one minute time, except (Ti
Keep* N) taken by air-breathing maintenance outside, all the other (60-Ti
Keep* N) time is isometric breathing of time, so have
(Te+Ti
Set) * F=60-Ti
Keep* N, (3)
Arrangement (3) formula can obtain (2) formula, but because Te is the expiratory duration amount, and be the eupnea that guarantees the patient, must satisfy Te 〉=Temin, be (60-Ti so (2) formula of utilization is calculated the prerequisite of Te
Keep* N)/F＞Ti
Set+ Temin, thus Te=(60-Ti could be guaranteed
Keep* N)/F-Ti
Set＞Temin, only when this precondition was set up, (2) formula was just set up.Present embodiment has been realized as (60-Ti
Keep* N)/F＞Ti
SetDuring+Temin, to the calculating of target expiratory duration Te.
Preferably, in said method, according to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N, conventional air-breathing frequency F and conventional inspiratory duration Ti
SetCalculating target expiratory duration Te comprises: according to air-breathing retention time Ti
Keep, air-breathing maintenance frequency of occurrences N and conventional air-breathing frequency F calculate (60-Ti
Keep* N)/F; Compare (60-Ti
Keep* N)/F and (Ti
Set+ Temin) size; If (60-Ti
Keep* N)/F≤Ti
Set+ Temin, then the target expiratory duration is:
Te＝Temin， (4)
Wherein, Temin, Ti
Keep, Ti
Set, Te unit be S (second).
Present embodiment is (60-Ti
Keep* N)/F≤Ti
SetThe situation of+Temin if still use (2) formula to calculate Te, can obtain Te=(60-Ti
Keep* N)/F-Ti
Set≤ Temin does not satisfy Te 〉=Temin, so the time no longer be fit to calculate Te with (2) formula, present embodiment has been considered (60-Ti
Keep* N)/F≤Ti
SetThese special circumstances of+Temin, and the minimum exhale time of Te for regulation is set, to satisfy patient's respiratory demand, the air-breathing frequency in one minute this moment also becomes F '=(60-Ti thereupon
Keep* N)/(Ti
Set+ Temin).
Preferably, in said method, step 103 comprises: initial N the respiration parameter of breathing that per minute is set is: inspiratory duration is target inspiratory duration Ti, and expiratory duration is target expiratory duration Te; N the breathing respiration parameter afterwards that per minute is set is: inspiratory duration is conventional inspiratory duration Ti
Set, expiratory duration is target expiratory duration Te.
Present embodiment preferentially guarantees the air-breathing retention time when controlling, promptly in one minute time, the preferential breathing that guarantees to occur to contain for N time air-breathing maintenance: its inspiratory duration is target inspiratory duration Ti, and expiratory duration is target expiratory duration Te; Remaining time is not for repeatedly containing the breathing of air-breathing maintenance: its inspiratory duration is conventional inspiratory duration Ti
Set, expiratory duration is target expiratory duration Te.Present embodiment has been realized air-breathing maintenance function on electric electricing breathing machine, the time range of its air-breathing maintenance is 0-15S, the cycle of air-breathing maintenance is (1-9)/10, it is the ventilation that occurs having for 1-9 time air-breathing maintenance function in per breathe for 10 times, thereby guaranteed minute ventilation to greatest extent, when guaranteeing the patient respiratory demand, make medical personnel when carrying out the pulmonary function radiography, need not stay-at-home and operation push-button again, simplify the manually-operated that realizes air-breathing maintenance function, made the medical personnel that carry out the pulmonary function radiography avoid the actual bodily harm that high-level radiation brings.
Preferably, in said method, step 103 also comprises: when electric electricing breathing machine carries out air-breathing maintenance ventilation, and the output information.Present embodiment is also exported information in the control of ventilating.Do like this, make medical personnel know the work at present state of respirator, the patient's body situation is made assessment accurately.
Preferably, in said method, when electric electricing breathing machine carried out air-breathing maintenance ventilation, the output information comprised: when electric electricing breathing machine carries out air-breathing maintenance ventilation, and slave computer notice host computer; Host computer is in warning message hurdle output information " air-breathing maintenance ventilation ".Present embodiment is realized the output of information with the information interaction between slave computer and the host computer, does like this, has made full use of existing medical resource, makes that the output of information is simple.
From above description, as can be seen, the situation that the above embodiments of the present invention are applicable in transit and do not have compressed gas source, and, air-breathing maintenance parameter carries out the automatic control of air-breathing maintenance ventilation by being set, need not the stay-at-home operation of medical personnel, simplify the manually-operated that realizes air-breathing maintenance function, made the medical personnel that carry out the pulmonary function radiography avoid the actual bodily harm that high-level radiation brings.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the one accountant, perhaps be distributed on the network that a plurality of accountant forms, alternatively, they can be realized with the executable program code of accountant, carry out by accountant thereby they can be stored in the storage device, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an air-breathing maintenance method that is used for electric electricing breathing machine is characterized in that, may further comprise the steps:
Electric electricing breathing machine is set to volume control ventilation mode of operation, and air-breathing maintenance parameter is set;
Target inspiratory duration and target expiratory duration when calculating air-breathing maintenance ventilation according to described air-breathing maintenance parameter and default conventional respiration parameter;
According to the control of ventilating of described target inspiratory duration, described target expiratory duration, described air-breathing maintenance parameter and described conventional respiration parameter.
2. method according to claim 1 is characterized in that, described air-breathing maintenance parameter comprises air-breathing retention time Ti
KeepWith air-breathing maintenance frequency of occurrences N.
3. method according to claim 2 is characterized in that, described conventional respiration parameter comprises conventional inspiratory duration Ti
SetWith the air-breathing frequency F of routine.
4. method according to claim 3 is characterized in that, target inspiratory duration and target expiratory duration when calculating air-breathing maintenance ventilation according to described air-breathing maintenance parameter and default conventional respiration parameter comprise:
According to described air-breathing retention time Ti
KeepWith described conventional inspiratory duration Ti
SetCalculate described target inspiratory duration Ti;
According to described air-breathing retention time Ti
Keep, described air-breathing maintenance frequency of occurrences N, the air-breathing frequency F of described routine and described conventional inspiratory duration Ti
SetCalculate described target expiratory duration Te.
5. method according to claim 4 is characterized in that, according to described air-breathing retention time Ti
KeepWith described conventional inspiratory duration Ti
SetCalculating described target inspiratory duration Ti comprises:
With described air-breathing retention time Ti
KeepWith described conventional inspiratory duration Ti
SetAddition obtains described target inspiratory duration Ti=Ti
Keep+ Ti
Set
6. method according to claim 4 is characterized in that, according to described air-breathing retention time Ti
Keep, described air-breathing maintenance frequency of occurrences N, the air-breathing frequency F of described routine and described conventional inspiratory duration Ti
SetCalculating described target expiratory duration Te comprises:
According to described air-breathing retention time Ti
Keep, the air-breathing frequency F of described air-breathing maintenance frequency of occurrences N and described routine calculates (60-Ti
Keep* N)/F;
Compare (60-Ti
Keep* N)/F and (Ti
Set+ Temin) size, wherein Temin is the minimum exhale time;
If (60-Ti
Keep* N)/F＞Ti
Set+ Temin is then according to (60-Ti
Keep* N)/F and Ti
SetCalculate described target expiratory duration Te=(60-Ti
Keep* N)/F-Ti
Set, Ti wherein
Keep, Temin, Ti
Set, Te unit be second.
7. method according to claim 4 is characterized in that, according to described air-breathing retention time Ti
Keep, described air-breathing maintenance frequency of occurrences N, the air-breathing frequency F of described routine and described conventional inspiratory duration Ti
SetCalculating described target expiratory duration Te comprises:
According to described air-breathing retention time Ti
Keep, the air-breathing frequency F of described air-breathing maintenance frequency of occurrences N and described routine calculates (60-Ti
Keep* N)/F;
Compare (60-Ti
Keep* N)/F and (Ti
Set+ Temin) size, wherein Temin is the minimum exhale time;
If (60-Ti
Keep* N)/F≤Ti
Set+ Temin, then described target expiratory duration Te=Temin, wherein, Temin, Ti
Keep, Ti
Set, Te unit be second.
8. according to each described method in the claim 3 to 7, it is characterized in that ventilating to control according to described target inspiratory duration, described target expiratory duration, described air-breathing maintenance parameter and described conventional respiration parameter comprises:
Initial N the respiration parameter of breathing that per minute is set is: inspiratory duration is described target inspiratory duration Ti, and expiratory duration is described target expiratory duration Te;
N the breathing respiration parameter afterwards that per minute is set is: inspiratory duration is described conventional inspiratory duration Ti
Set, expiratory duration is described target expiratory duration Te.
9. method according to claim 8 is characterized in that, ventilating to control according to described target inspiratory duration, described target expiratory duration, described air-breathing maintenance parameter and described conventional respiration parameter also comprises:
When described electric electricing breathing machine carries out air-breathing maintenance ventilation, the output information.
10. method according to claim 9 is characterized in that, when described electric electricing breathing machine carried out air-breathing maintenance ventilation, the output information comprised:
When described electric electricing breathing machine carries out air-breathing maintenance ventilation, slave computer notice host computer;
Host computer is in warning message hurdle output information.
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|---|---|---|---|
| CN 200910217561 CN102114284B (en) | 2009-12-31 | 2009-12-31 | Inhaling holding method for electrically powered electrically controlled ventilator |
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| CN1035245A (en) * | 1989-02-24 | 1989-09-06 | 航天工业部第二研究院第四总体设计部 | The microcomputerized controller of respirator |
| US5540220A (en) * | 1994-12-08 | 1996-07-30 | Bear Medical Systems, Inc. | Pressure-limited, time-cycled pulmonary ventilation with volume-cycle override |
| EP0965356A1 (en) * | 1998-06-15 | 1999-12-22 | Siemens-Elema AB | A method for determining the volume of a tubing system and a breathing apparatus system |
| CN1761498A (en) * | 2003-01-27 | 2006-04-19 | 医疗电子工业应用公司(Saime) | Breathing assistance device, and method of regulation |
| CN101052432A (en) * | 2004-09-03 | 2007-10-10 | 雷斯梅德有限公司 | Target ventilating volumn adjusting in servo breathing machine |
| CN101528289A (en) * | 2006-08-11 | 2009-09-09 | Ric投资有限责任公司 | Systems and methods for controlling breathing rate |
-
2009
- 2009-12-31 CN CN 200910217561 patent/CN102114284B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035245A (en) * | 1989-02-24 | 1989-09-06 | 航天工业部第二研究院第四总体设计部 | The microcomputerized controller of respirator |
| US5540220A (en) * | 1994-12-08 | 1996-07-30 | Bear Medical Systems, Inc. | Pressure-limited, time-cycled pulmonary ventilation with volume-cycle override |
| EP0965356A1 (en) * | 1998-06-15 | 1999-12-22 | Siemens-Elema AB | A method for determining the volume of a tubing system and a breathing apparatus system |
| CN1761498A (en) * | 2003-01-27 | 2006-04-19 | 医疗电子工业应用公司(Saime) | Breathing assistance device, and method of regulation |
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|---|---|
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