CN104841055A - Control method, device and system for breathing machine PEEP valve - Google Patents
Control method, device and system for breathing machine PEEP valve Download PDFInfo
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- CN104841055A CN104841055A CN201510191851.3A CN201510191851A CN104841055A CN 104841055 A CN104841055 A CN 104841055A CN 201510191851 A CN201510191851 A CN 201510191851A CN 104841055 A CN104841055 A CN 104841055A
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Abstract
The invention relates to a control method for a breathing machine PEEP valve. The control method comprises the steps of obtaining the current monitored PEEP pressure and the set PEEP pressure, judging whether the current monitored PEEP pressure is the same as the set PEEP pressure, returning to the step of obtaining the current monitored PEEP pressure and the set PEEP pressure if the current monitored PEEP pressure is the same as the set PEEP pressure, adjusting the supply pressure of a pressure device and the current of a proportional valve according to the current monitored PEEP pressure and the set PEEP pressure if the current monitored PEEP pressure is not the same as the set PEEP pressure and returning to the step of obtaining the current monitored PEEP pressure and the set PEEP pressure. The supply pressure of the pressure device and the current of the proportional valve are adjusted according to the current monitored PEEP pressure and the set PEEP pressured, the voltage of the pressure device can change along with the supply pressure of the pressure device, the pressure device needn't work in constant voltage, the actual using efficiency of the pressure device is improved, the supply pressure of the pressure device can be automatically adjusted, and the accurate PEEP pressure can be quickly obtained. In addition, the invention further provides a control device for the breathing machine PEEP valve.
Description
Technical field
The present invention relates to respirator technical field, particularly relate to a kind of control method of respirator PEEP valve, device and system.
Background technology
Respirator is that a kind of normal physiological that can replace, control or change people is breathed, and increases pulmonary ventilation volume, improves respiratory function, alleviate work of breathing consumption, save the device of heart reservation ability.Respirator has multiple ventilating mode, PEEP (positive end expiratory pressure, positive end expiratory pressure) be one wherein, it is under the prerequisite of intermittent positive pressure ventilation, making to keep certain pressure in end-tidal air flue, playing an important role when treating respiratory distress syndrome, non cardiogenic pulmonary edema, pneumorrhagia.
The respirator PEEP valve of Most current to control to be all regulable control on the constant voltage source of the gas of elevated pressures, but the source of the gas stability of current respirator is poor, is difficult in this way obtain accurate PEEP controlled pressure and control cycle is long.Pressurizer major part under this control mode is all use as constant pressure source, and electric quantity consumption is large, and reduces the efficiency of actual of pressurizer.
Summary of the invention
Based on this, be necessary for above-mentioned technical problem, provide a kind of control method of respirator PEEP valve, device and system, the supply pressure of energy automatic pressure regulation device, obtains accurate PEEP pressure fast, also can improve the efficiency of actual of pressurizer.
A control method for respirator PEEP valve, described method comprises:
Obtain current monitoring PEEP pressure and PEEP pressure is set;
Judge described current monitoring PEEP pressure and whether arrange PEEP pressure identical, if identical, then return the step obtaining current monitoring PEEP pressure and PEEP pressure is set;
If described current monitoring PEEP pressure is not with to arrange PEEP pressure identical, then according to described current monitoring PEEP pressure with arrange PEEP pressure and regulate the supply pressure of pressure apparatus and the electric current of proportioning valve, return described acquisition current monitoring PEEP pressure and the step of PEEP pressure is set.
Wherein in an embodiment, described judge the step whether described current monitoring PEEP pressure identical with arranging PEEP pressure before, also comprise:
Judge whether current monitoring PEEP pressure meets preset range, if do not met, then the path between closing presure device and proportioning valve, is made the control gas in PEEP valve be discharged by electromagnetic valve, and sends alarm signal;
If current monitoring PEEP pressure meets preset range, then enter the described step whether described current monitoring PEEP pressure is identical with arranging PEEP pressure that judges
Wherein in an embodiment, described according to described current monitoring PEEP pressure with arrange PEEP pressure and regulate the step of the supply pressure of pressure apparatus and the electric current of proportioning valve to comprise:
Judge whether the described PEEP of setting pressure is 0, if be 0, then the path between closing presure device and proportioning valve, makes the control gas in PEEP valve be discharged by electromagnetic valve;
If the described PEEP of setting pressure is not 0, then more described current monitoring PEEP pressure and the size that PEEP pressure is set, if it is large that described current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of described pressure apparatus is turned down, the electric current of described proportioning valve is tuned up;
If it is little that described current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of described pressure apparatus is tuned up, the electric current of described proportioning valve is turned down.
Wherein in an embodiment, described method also comprises:
Obtain current monitoring PEEP controlled pressure, what acquisition prestored arranges target P EEP controlled pressure corresponding to PEEP pressure with described;
The supply pressure of pressure apparatus and the electric current of proportioning valve is regulated according to described current monitoring PEEP controlled pressure and target P EEP controlled pressure.
Wherein in an embodiment, described pressure apparatus is charging turbine, described according to described current monitoring PEEP pressure with arrange PEEP pressure and regulate the step of the supply pressure of pressure apparatus and the electric current of proportioning valve to comprise:
The rotating speed of described charging turbine is regulated according to described current monitoring PEEP pressure and the magnitude relationship arranging PEEP pressure;
Obtain the corresponding relation of the electric current of described rotating speed and the proportioning valve prestored;
The electric current of described proportioning valve is regulated according to described corresponding relation.
A control device for respirator PEEP valve, described device comprises:
Acquisition module, for obtaining current monitoring PEEP pressure and arranging PEEP pressure;
Judge module, for judging described current monitoring PEEP pressure and whether arrange PEEP pressure identical, if identical, then returns acquisition module, otherwise, enter the first adjustment module;
First adjustment module, for according to described current monitoring PEEP pressure with arrange PEEP pressure and regulate the supply pressure of pressure apparatus and the electric current of proportioning valve, then returns acquisition module.
Wherein in an embodiment, described device also comprises:
Processing module, for judging whether current monitoring PEEP pressure meets preset range, if do not met, path then between closing presure device and proportioning valve, control gas in PEEP valve is discharged by electromagnetic valve, and send alarm signal, if current monitoring PEEP pressure meets preset range, then enter judge module.
Wherein in an embodiment, described first adjustment module comprises:
First regulon, for judging whether the described PEEP of setting pressure is 0, if be 0, then the path between closing presure device and proportioning valve, makes the control gas in PEEP valve be discharged by electromagnetic valve;
Second regulon, if be not 0 for the described PEEP of setting pressure, then more described current monitoring PEEP pressure and the size that PEEP pressure is set, if it is large that described current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of described pressure apparatus is turned down, the electric current of described proportioning valve is tuned up, if to arrange PEEP pressure little for described current monitoring PEEP pressure ratio, then the supply pressure of described pressure apparatus is tuned up, the electric current of described proportioning valve is turned down.
Wherein in an embodiment, described device also comprises:
Second adjustment module, for obtaining current monitoring PEEP controlled pressure, what acquisition prestored arranges target P EEP controlled pressure corresponding to PEEP pressure with described, regulates the supply pressure of pressure apparatus and the electric current of proportioning valve according to described current monitoring PEEP controlled pressure and target P EEP controlled pressure.
Wherein in an embodiment, described pressure apparatus is charging turbine, described first adjustment module is also for regulating the rotating speed of described charging turbine according to described current monitoring PEEP pressure and the magnitude relationship arranging PEEP pressure, obtain the corresponding relation of the electric current of described rotating speed and the proportioning valve prestored, regulate the electric current of described proportioning valve according to described corresponding relation.
The control method of above-mentioned respirator PEEP valve and device, according to current monitoring PEEP pressure with PEEP pressure is set the supply pressure of pressure apparatus and the electric current of proportioning valve is regulated, the voltage of pressure apparatus changes along with the supply pressure of pressure apparatus, pressure apparatus is not needed to work at constant pressure, improve the efficiency of actual of pressure apparatus, by the supply pressure of automatic pressure regulation device, obtain accurate PEEP pressure fast.
A kind of control system of respirator PEEP valve, comprise the PEEP valve breathing communication with oxygen feed path and user, described system also comprises the control device of respirator PEEP valve described in pressure apparatus, throttling arrangement, electromagnetic valve, proportioning valve, pressure-detecting device and claim 1;
Described pressure apparatus outfan is connected with the input of described throttling arrangement;
The outfan connected electromagnetic valve of described throttling arrangement;
The outfan of the first port connecting joint stream device of described electromagnetic valve, the second port of electromagnetic valve is communicated with PEEP valve with the input of proportioning valve respectively;
Described pressure transducer obtains the current monitoring PEEP pressure of PEEP valve for detecting;
The control device of described respirator PEEP valve is connected with pressure apparatus, electromagnetic valve, proportioning valve and pressure-detecting device, for according to described current monitoring PEEP pressure with PEEP pressure is set, regulate the supply pressure of pressure apparatus and regulate the size of current of proportioning valve, PEEP controlled pressure pressure apparatus and proportioning valve being cooperatively interacted reach different.
Wherein in an embodiment, described electromagnetic valve is two-position three way magnetic valve, and the 3rd port of described two-position three way magnetic valve is connected with the external world.
Wherein in an embodiment, described pressure apparatus is charging turbine.
The control system of above-mentioned respirator PEEP valve, the control device of respirator PEEP valve according to current monitoring PEEP pressure with PEEP pressure is set the supply pressure of pressure apparatus and the electric current of proportioning valve is regulated, the voltage of pressure apparatus changes along with the supply pressure of pressure apparatus, pressure apparatus is not needed to work at constant pressure, improve the efficiency of actual of pressure apparatus, by the supply pressure of automatic pressure regulation device, obtain accurate PEEP pressure fast.
Accompanying drawing explanation
Fig. 1 is the hardware environment figure of the control method application of respirator PEEP valve in an embodiment;
Fig. 2 is the flow chart of the control method of respirator PEEP valve in an embodiment;
Fig. 3 is the flow chart of the control method of respirator PEEP valve in another embodiment;
Fig. 4 is the working state schematic representation of electromagnetic valve in an embodiment;
Fig. 5 is the another kind of working state schematic representation of electromagnetic valve in an embodiment;
Fig. 6 is the flow chart of the method regulating the supply pressure of pressure apparatus and the electric current of proportioning valve in an embodiment;
Fig. 7 is the flow chart of the method regulating the supply pressure of pressure apparatus and the electric current of proportioning valve in another embodiment;
Fig. 8 is the structured flowchart of the control device of respirator PEEP valve in an embodiment;
Fig. 9 is the structured flowchart of the control device of respirator PEEP valve in another embodiment;
Figure 10 is the structured flowchart of the first adjustment module in an embodiment;
Figure 11 is the structured flowchart of the control system of respirator PEEP valve in an embodiment.
Detailed description of the invention
Fig. 1 is the hardware environment figure of the control method application of respirator PEEP valve in an embodiment, and pressure apparatus 110 is pressure sources, provides different controlled pressures.The large discharge Compressed Gas that pressure apparatus 110 exports carries out throttling through inflow-rate of water turbine vapour lock 3, after electromagnetic valve 130 carries out security control, enter the input of proportioning valve 140, the pressure fitted that proportioning valve 140 and pressure apparatus 110 provide defines the controlled pressure of required PPEP valve 150.Pressure transducer 160 is for detecting actual exhalation PPEP pressure when user is exhaled by breathing mask 190, pressure transducer 170 detects the PPEP controlled pressure formed between electromagnetic valve 130 and proportioning valve 140, the control device of respirator PEEP valve for realizing a kind of control method of respirator PEEP valve, according to the monitoring pressure controlled pressure device 110 of pressure transducer 160, pressure transducer 170, electromagnetic valve 130 and proportioning valve 140.
In one embodiment, provide a kind of control method of respirator PEEP valve, as shown in Figure 2, comprising:
Step S210, obtains current monitoring PEEP pressure and arranges PEEP pressure.
Concrete, current monitoring PEEP pressure is the exhalation PEEP pressure of the user reality detected by pressure-detecting device, and arranging PEEP pressure is the target P EEP pressure arranged according to the practical situation of user.Pressure-detecting device can be pressure transducer.
Step S220, judges current monitoring PEEP pressure and whether arrange PEEP pressure identical, if identical, then returns step S210, if different, then enters step S230.
Concrete, if current monitoring PEEP pressure is identical with arranging PEEP pressure, then illustrate that the exhalation PEEP pressure of current reality has reached target P EEP pressure, do not need have adjusted, return step S210 to continue to obtain current monitoring PEEP pressure and arrange PEEP pressure, constantly carry out Real-Time Monitoring with at current monitoring PEEP pressure and/or PEEP pressure change is set regulate in real time.
Step S230, according to current monitoring PEEP pressure with arrange PEEP pressure and regulate the supply pressure of pressure apparatus and the electric current of proportioning valve, returns step S210.
Concrete, pressure apparatus, for providing the equipment of pressure, as charging turbine, cylinder, increases pump etc.If it is little that current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of pressure apparatus is tuned up, the electric current of proportioning valve is turned down, proportioning valve aperture is diminished, gas is slack-off from the proportioning valve rate of outflow, thus makes the PPEP controlled pressure formed between pressure apparatus and proportioning valve become large.If it is large that current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of pressure apparatus is turned down, the electric current of proportioning valve is tuned up, make proportioning valve aperture become large, gas easily flows out from proportioning valve, thus the PPEP controlled pressure formed between pressure apparatus and proportioning valve is diminished.Due to proportional between PPEP controlled pressure and PPEP pressure, PPEP pressure can change accordingly along with the change of PPEP controlled pressure.Enter step S210 after adjustment completes, the current monitoring PEEP pressure after can adjustedly completing, so according to the current monitoring PEEP pressure after having regulated with PEEP pressure be set continue to regulate until current monitoring PEEP pressure is identical with arranging PEEP pressure.
In the present embodiment, by obtaining current monitoring PEEP pressure and arranging PEEP pressure, judge current monitoring PEEP pressure and whether arrange PEEP pressure identical, if identical, then return the step obtaining current monitoring PEEP pressure and PEEP pressure is set, if described current monitoring PEEP pressure is not with to arrange PEEP pressure identical, then according to current monitoring PEEP pressure with arrange PEEP pressure and regulate the supply pressure of pressure apparatus and the electric current of proportioning valve, and then return the step obtaining current monitoring PEEP pressure and PEEP pressure is set.According to current monitoring PEEP pressure with PEEP pressure is set the supply pressure of pressure apparatus and the electric current of proportioning valve is regulated, the voltage of pressure apparatus changes along with the supply pressure of pressure apparatus, pressure apparatus is not needed to work at constant pressure, improve the efficiency of actual of pressure apparatus, by the supply pressure of automatic pressure regulation device, obtain accurate PEEP pressure fast.
In another embodiment, as shown in Figure 3, comprising:
Step S310, obtains current monitoring PEEP pressure and arranges PEEP pressure.
Step S320, judges whether current monitoring PEEP pressure meets preset range, if do not met, then enters step S330, if met, then enters step S340.
Concrete, preset range can set according to patient's practical situation, and general preset range is 0 ~ 60cmH2O.
Step S330, the path between closing presure device and proportioning valve, is made the control gas in PEEP valve be discharged by electromagnetic valve, and sends alarm signal.
Concrete, if current monitoring PEEP pressure does not meet preset range, then need quick adjustment PEEP valve to make it in preset range, and report to the police.Path now between closing presure device and proportioning valve, thus the Compressed Gas making pressure apparatus export can not enter proportioning valve, the PPEP controlled pressure that quick reduction is formed, when PPEP controlled pressure reduces, due to proportional between PPEP controlled pressure and PPEP pressure, PPEP pressure also can reduce.And the control gas in PEEP valve is discharged by electromagnetic valve, reduce PPEP pressure further.Electromagnetic valve can be two-position three way magnetic valve, and comprise a mouth, b mouth, c mouth 3 ports, wherein a mouth is connected with the outfan of pressure apparatus, and input, the PEEP valve of b mouth and proportioning valve are connected, and c mouth is connected with the external world.When normally working, electromagnetic valve is in the state shown in Fig. 4, and a mouth is closed, and c mouth is communicated with b mouth and makes pressure apparatus and proportioning valve form path.If current monitoring PEEP pressure does not meet preset range, then electromagnetic valve is in the state shown in Fig. 5, and c mouth is closed, and a mouth is opened, and a mouth is in communication with the outside, and the control gas in PEEP valve is discharged by electromagnetic valve a mouth.By judging whether current monitoring PEEP pressure meets preset range, can when exceeding preset range the duty of electromagnetic valve for adjusting, thus quick adjustment PEEP pressure, accelerates the speed of adjustment, adds safety.
Step S340, judges current monitoring PEEP pressure and whether arrange PEEP pressure identical, if identical, then returns step S310, if different, then enters step S350.
Step S350, according to current monitoring PEEP pressure with arrange PEEP pressure and regulate the supply pressure of pressure apparatus and the electric current of proportioning valve, returns step S310.
In one embodiment, as shown in Figure 6, step S230 comprises:
Step S231, judges that whether arrange PEEP pressure is 0, if be 0, then enters step S232.Otherwise enter step S233.
Concrete, first judge that whether arrange PEEP pressure is 0, if be 0, enter step S232 and carries out quick adjustment.
Step S232, the path between closing presure device and proportioning valve, makes the control gas in PEEP valve be discharged by electromagnetic valve.
Concrete, path between closing presure device and proportioning valve, thus the Compressed Gas making pressure apparatus export can not enter proportioning valve, the PPEP controlled pressure that quick reduction is formed, when PPEP controlled pressure reduces, due to proportional between PPEP controlled pressure and PPEP pressure, PPEP pressure also can reduce.And the control gas in PEEP valve is discharged by electromagnetic valve, reduce PPEP pressure further.
Step S233, more current monitoring PEEP pressure and the size arranging PEEP pressure, if current monitoring PEEP pressure ratio arranges PEEP pressure greatly, then turn down the supply pressure of pressure apparatus, tuned up by the electric current of proportioning valve.If it is little that current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of pressure apparatus is tuned up, the electric current of proportioning valve is turned down.
Concrete, if it is large that current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of pressure apparatus is turned down, the electric current of proportioning valve is tuned up, proportioning valve aperture is made to become large, gas easily flows out from proportioning valve, thus the PPEP controlled pressure formed between pressure apparatus and proportioning valve is diminished.If it is little that current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of pressure apparatus is tuned up, the electric current of proportioning valve is turned down, proportioning valve aperture is diminished, gas is slack-off from the proportioning valve rate of outflow, thus makes the PPEP controlled pressure formed between pressure apparatus and proportioning valve become large.Due to proportional between PPEP controlled pressure and PPEP pressure, PPEP pressure can change accordingly along with the change of PPEP controlled pressure.
In one embodiment, described method also comprises: obtain current monitoring PEEP controlled pressure, obtaining the target P EEP controlled pressure corresponding with arranging PEEP pressure prestored, regulating the supply pressure of pressure apparatus and the electric current of proportioning valve according to current monitoring PEEP controlled pressure and target P EEP controlled pressure.
Concrete, by pressure-detecting device, as pressure transducer, detect and coordinate by pressure apparatus and proportioning valve the PEEP controlled pressure formed.There is corresponding relation between PEEP pressure and PEEP controlled pressure, obtain arranging target P EEP controlled pressure corresponding to PEEP pressure by the corresponding relation prestored.Then the supply pressure of pressure apparatus and the electric current of proportioning valve is regulated according to the magnitude relationship of current monitoring PEEP controlled pressure and target P EEP controlled pressure.If current monitoring PEEP controlled pressure is less than target P EEP controlled pressure, then pressure apparatus is supplied pressure to tune up, and turn the electric current of proportioning valve accordingly down, proportioning valve aperture is diminished, gas is slack-off from the proportioning valve rate of outflow, thus makes the PPEP controlled pressure formed between pressure apparatus and proportioning valve become large.If current monitoring PEEP controlled pressure is larger than target P EEP controlled pressure, then pressure apparatus is supplied pressure to turn down, and tune up the electric current of proportioning valve accordingly, proportioning valve aperture is made to become large, gas accelerates from the proportioning valve rate of outflow, thus the PPEP controlled pressure formed between pressure apparatus and proportioning valve is diminished.The present embodiment intuitively can must observe current monitoring PEEP controlled pressure, makes to regulate more directly perceived, ensures safety further.
In one embodiment, pressure apparatus is charging turbine, and as shown in Figure 7, step S230 comprises:
Step S234, regulates the rotating speed of charging turbine according to current monitoring PEEP pressure and the magnitude relationship arranging PEEP pressure.
Concrete, if to arrange PEEP pressure little for current monitoring PEEP pressure ratio, then increase the voltage of charging turbine, make the faster rotational speed of charging turbine, make the supply pressure increase of charging turbine.If it is large that current monitoring PEEP pressure ratio arranges PEEP pressure, then reduce the voltage of charging turbine, make the spin down of charging turbine, the supply pressure of charging turbine is reduced.
Step S235, obtains the corresponding relation of the electric current of rotating speed and the proportioning valve prestored.
Concrete, there is corresponding relation in the electric current of rotating speed and proportioning valve, this corresponding relation is the empirical value contrast relationship drawn after repeatedly testing in early stage.
Step S236, regulates the electric current of described proportioning valve according to corresponding relation.
Concrete, according to the corresponding relation prestored, obtain the electric current that the rotating speed after regulating is corresponding, thus the aperture of control ratio valve is to the position corresponding with electric current.By the corresponding relation of the electric current of the rotating speed that prestores and proportioning valve, obtain the electric current that rotating speed just can obtain proportioning valve fast, thus reach the object of quick adjustment.
In one embodiment, as shown in Figure 8, provide a kind of control device of respirator PEEP valve, comprising:
Acquisition module 410, for obtaining current monitoring PEEP pressure and arranging PEEP pressure.
Judge module 420, for judging current monitoring PEEP pressure and whether arrange PEEP pressure identical, if identical, then returns acquisition module 410, otherwise, enter the first adjustment module 430.
First adjustment module 430, for according to current monitoring PEEP pressure with arrange PEEP pressure and regulate the supply pressure of pressure apparatus and the electric current of proportioning valve, then returns acquisition module 410.
In one embodiment, as shown in Figure 9, described device also comprises: processing module 440, for judging whether current monitoring PEEP pressure meets preset range, if do not met, then the path between closing presure device and proportioning valve, control gas in PEEP valve is discharged by electromagnetic valve, and send alarm signal, if current monitoring PEEP pressure meets preset range, then enter judge module 420.
In one embodiment, as shown in Figure 10, the first adjustment module 430 comprises:
First regulon 431, for judging whether be 0, if be 0, then the path between closing presure device and proportioning valve, makes the control gas in PEEP valve be discharged by electromagnetic valve if arranging PEEP pressure.
Second regulon 432, if be not 0 for arranging PEEP pressure, then more current monitoring PEEP pressure and the size that PEEP pressure is set, if it is large that current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of pressure apparatus is turned down, the electric current of proportioning valve is tuned up, if to arrange PEEP pressure little for current monitoring PEEP pressure ratio, then the supply pressure of pressure apparatus is tuned up, the electric current of proportioning valve is turned down.
In one embodiment, described device also comprises: the second adjustment module, for obtaining current monitoring PEEP controlled pressure, obtaining the target P EEP controlled pressure corresponding with arranging PEEP pressure prestored, regulating the supply pressure of pressure apparatus and the electric current of proportioning valve according to current monitoring PEEP controlled pressure and target P EEP controlled pressure.
In one embodiment, described pressure apparatus is charging turbine, first adjustment module 430 is also for regulating the rotating speed of charging turbine according to current monitoring PEEP pressure and the magnitude relationship arranging PEEP pressure, obtain the corresponding relation of the electric current of rotating speed and the proportioning valve prestored, regulate the electric current of proportioning valve according to corresponding relation.
In one embodiment, as shown in figure 11, provide a kind of control system of respirator PEEP valve, comprise the PEEP valve 550 breathing communication with oxygen feed path and user, described system also comprises the control device 570 of respirator PEEP valve described in pressure apparatus 510, throttling arrangement 520, electromagnetic valve 530, proportioning valve 540, pressure-detecting device 560 and claim 1;
Pressure apparatus 510 outfan is connected with the input of throttling arrangement 520, the outfan connected electromagnetic valve 530 of throttling arrangement 520, the outfan of the first port connecting joint stream device 520 of electromagnetic valve 530, the second port of electromagnetic valve 530 is communicated with PEEP valve 550 with the input of proportioning valve 540 respectively.Pressure-detecting device 560 obtains the current monitoring PEEP pressure of PEEP valve 550 for detecting.The control device 570 of respirator PEEP valve is connected with pressure apparatus 510, electromagnetic valve 530, proportioning valve 540 and pressure-detecting device 560, for according to current monitoring PEEP pressure with PEEP pressure is set, regulate the supply pressure of pressure apparatus 510 and regulate the size of current of proportioning valve 540, pressure apparatus 510 and proportioning valve 540 are cooperatively interacted the PEEP controlled pressure reaching different.
In the present embodiment, the control device of respirator PEEP valve according to current monitoring PEEP pressure with PEEP pressure is set the supply pressure of pressure apparatus and the electric current of proportioning valve is regulated, the voltage of pressure apparatus changes along with the supply pressure of pressure apparatus, pressure apparatus is not needed to work at constant pressure, improve the efficiency of actual of pressure apparatus, by the supply pressure of automatic pressure regulation device, the accurate PEEP pressure of quick acquisition, simultaneously because the supply pressure of automatic pressure regulation device does not need the devices such as air relief valve to provide constant pressure, system is made to decrease device, volume reduces, more portable.
In one embodiment, electromagnetic valve 530 is two-position three way magnetic valve, and the 3rd port of two-position three way magnetic valve is connected with the external world.
In one embodiment, pressure apparatus 510 is charging turbine.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (13)
1. a control method for respirator PEEP valve, described method comprises:
Obtain current monitoring PEEP pressure and PEEP pressure is set;
Judge described current monitoring PEEP pressure and whether arrange PEEP pressure identical, if identical, then return the step obtaining current monitoring PEEP pressure and PEEP pressure is set;
If described current monitoring PEEP pressure is not with to arrange PEEP pressure identical, then according to described current monitoring PEEP pressure with arrange PEEP pressure and regulate the supply pressure of pressure apparatus and the electric current of proportioning valve, return described acquisition current monitoring PEEP pressure and the step of PEEP pressure is set.
2. method according to claim 1, is characterized in that, described judge the step whether described current monitoring PEEP pressure identical with arranging PEEP pressure before, also comprise:
Judge whether current monitoring PEEP pressure meets preset range, if do not met, then the path between closing presure device and proportioning valve, is made the control gas in PEEP valve be discharged by electromagnetic valve, and sends alarm signal;
If current monitoring PEEP pressure meets preset range, then enter the described step whether described current monitoring PEEP pressure is identical with arranging PEEP pressure that judges.
3. method according to claim 1 and 2, is characterized in that, described according to described current monitoring PEEP pressure with arrange PEEP pressure and regulate the step of the supply pressure of pressure apparatus and the electric current of proportioning valve to comprise:
Judge whether the described PEEP of setting pressure is 0, if be 0, then the path between closing presure device and proportioning valve, makes the control gas in PEEP valve be discharged by electromagnetic valve;
If the described PEEP of setting pressure is not 0, then more described current monitoring PEEP pressure and the size that PEEP pressure is set, if it is large that described current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of described pressure apparatus is turned down, the electric current of described proportioning valve is tuned up;
If it is little that described current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of described pressure apparatus is tuned up, the electric current of described proportioning valve is turned down.
4. method according to claim 1, is characterized in that, described method also comprises:
Obtain current monitoring PEEP controlled pressure, what acquisition prestored arranges target P EEP controlled pressure corresponding to PEEP pressure with described;
The supply pressure of pressure apparatus and the electric current of proportioning valve is regulated according to described current monitoring PEEP controlled pressure and target P EEP controlled pressure.
5. method according to claim 1, is characterized in that, described pressure apparatus is charging turbine, described according to described current monitoring PEEP pressure with arrange PEEP pressure and regulate the step of the supply pressure of pressure apparatus and the electric current of proportioning valve to comprise:
The rotating speed of described charging turbine is regulated according to described current monitoring PEEP pressure and the magnitude relationship arranging PEEP pressure;
Obtain the corresponding relation of the electric current of described rotating speed and the proportioning valve prestored;
The electric current of described proportioning valve is regulated according to described corresponding relation.
6. a control device for respirator PEEP valve, is characterized in that, described device comprises:
Acquisition module, for obtaining current monitoring PEEP pressure and arranging PEEP pressure;
Judge module, for judging described current monitoring PEEP pressure and whether arrange PEEP pressure identical, if identical, then returns acquisition module, otherwise, enter the first adjustment module;
First adjustment module, for according to described current monitoring PEEP pressure with arrange PEEP pressure and regulate the supply pressure of pressure apparatus and the electric current of proportioning valve, then returns acquisition module.
7. device according to claim 6, is characterized in that, described device also comprises:
Processing module, for judging whether current monitoring PEEP pressure meets preset range, if do not met, path then between closing presure device and proportioning valve, control gas in PEEP valve is discharged by electromagnetic valve, and send alarm signal, if current monitoring PEEP pressure meets preset range, then enter judge module.
8. device according to claim 6, is characterized in that, described first adjustment module comprises:
First regulon, for judging whether the described PEEP of setting pressure is 0, if be 0, then the path between closing presure device and proportioning valve, makes the control gas in PEEP valve be discharged by electromagnetic valve;
Second regulon, if be not 0 for the described PEEP of setting pressure, then more described current monitoring PEEP pressure and the size that PEEP pressure is set, if it is large that described current monitoring PEEP pressure ratio arranges PEEP pressure, then the supply pressure of described pressure apparatus is turned down, the electric current of described proportioning valve is tuned up, if to arrange PEEP pressure little for described current monitoring PEEP pressure ratio, then the supply pressure of described pressure apparatus is tuned up, the electric current of described proportioning valve is turned down.
9. device according to claim 6, is characterized in that, described device also comprises:
Second adjustment module, for obtaining current monitoring PEEP controlled pressure, what acquisition prestored arranges target P EEP controlled pressure corresponding to PEEP pressure with described, regulates the supply pressure of pressure apparatus and the electric current of proportioning valve according to described current monitoring PEEP controlled pressure and target P EEP controlled pressure.
10. device according to claim 6, it is characterized in that, described pressure apparatus is charging turbine, described first adjustment module is also for regulating the rotating speed of described charging turbine according to described current monitoring PEEP pressure and the magnitude relationship arranging PEEP pressure, obtain the corresponding relation of the electric current of described rotating speed and the proportioning valve prestored, regulate the electric current of described proportioning valve according to described corresponding relation.
The control system of 11. 1 kinds of respirator PEEP valves, comprise the PEEP valve breathing communication with oxygen feed path and user, it is characterized in that, described system also comprises the control device of respirator PEEP valve described in pressure apparatus, throttling arrangement, electromagnetic valve, proportioning valve, pressure-detecting device and claim 1;
Described pressure apparatus outfan is connected with the input of described throttling arrangement;
The outfan connected electromagnetic valve of described throttling arrangement;
The outfan of the first port connecting joint stream device of described electromagnetic valve, the second port of electromagnetic valve is communicated with PEEP valve with the input of proportioning valve respectively;
Described pressure transducer obtains the current monitoring PEEP pressure of PEEP valve for detecting;
The control device of described respirator PEEP valve is connected with pressure apparatus, electromagnetic valve, proportioning valve and pressure-detecting device, for according to described current monitoring PEEP pressure with PEEP pressure is set, regulate the supply pressure of pressure apparatus and regulate the size of current of proportioning valve, PEEP controlled pressure pressure apparatus and proportioning valve being cooperatively interacted reach different.
12. systems according to claim 11, is characterized in that, described electromagnetic valve is two-position three way magnetic valve, and the 3rd port of described two-position three way magnetic valve is connected with the external world.
13. systems according to claim 11, is characterized in that, described pressure apparatus is charging turbine.
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