CN106620979A - Breathing machine control method and device - Google Patents
Breathing machine control method and device Download PDFInfo
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- CN106620979A CN106620979A CN201611248740.2A CN201611248740A CN106620979A CN 106620979 A CN106620979 A CN 106620979A CN 201611248740 A CN201611248740 A CN 201611248740A CN 106620979 A CN106620979 A CN 106620979A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0087—Environmental safety or protection means, e.g. preventing explosion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
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Abstract
The embodiment of the invention provides a breathing machine control method and device. The breathing machine control method includes the steps that the voltage of the air outlet end of a breathing machine and state data used for representing the running state of the breathing machine are obtained, the state data is compared with a corresponding preset threshold when the voltage of the air outlet end is target voltage, and the use state of filtering cotton of the breathing machine is judged. An additional sensor is not needed, the use state of the filtering cotton can be automatically and accurately recognized only by means of parts of the breathing machine, and a user is prompted to maintain, clean or replace the filtering cotton in time, so the risk that ash, dust and other large-particle molecules are sucked into the airway when the use condition of the filtering cotton is not checked in time is reduced, use safety of the user is guaranteed, the service life of a draught fan of the breathing machine is also prolonged, waste caused when the filtering cotton is replaced too early can be avoided, and the use cost is reduced.
Description
Technical field
The present invention relates to field of medical technology, more particularly to a kind of lung ventilator control method and device.
Background technology
Critical medical devices of the lung ventilator as respiratory tract therapeutic field, it is necessary to which the gas that guarantee is conveyed to user is totally clear
It is clean.Wherein, filter cotton plays a part of to filter gas cleaning as the vitals in lung ventilator.The cleaning shape of filter cotton
Condition directly affects the health of user.
In prior art, in order to the clean-up performance of filter cotton in the machine of ensuring respiration meets the standard that uses, need by user
Carry out professional judgement to recognize the use state of filter cotton.In order to user can be judged exactly, goods producer is not
Big length in the description is only needed to introduce the maintenance and maintenance of filter cotton, supplier is also needed to when user buys lung ventilator
The training of correlation is done in maintenance and maintenance to filter cotton.To guarantee that user has professional judgement ability, filter cotton is accurately identified
Use state.
But user is during actually used lung ventilator, often forgets, ignore the use state to filter cotton and carry out
Judge, cause filter cotton in time to be maintained, cleaned or be changed, and then cause filter cotton clean-up performance to be unable to reach often
Using standard.The blocking of filter cotton directly results in growing for bacterium, and suction respiratory tract bulky grain molecule (dust, dust etc.)
Risk greatly improve, the service life of lung ventilator blower fan is shortened indirectly, and jeopardize the health of people.By setting timing
Device, although can play a part of prompting, but due to the specifically used situation otherness of lung ventilator it is larger, it is impossible to accurately judge to filter
The use state of cotton.By the sensor special for increasing identification filter cotton use state newly, although judgement can be made more accurate, but
It is relatively costly.
The content of the invention
Embodiment of the present invention technical problem to be solved is to provide a kind of lung ventilator control method, is not increasing cost
In the case of, accurately identify the use state of filter cotton.
Accordingly, the embodiment of the present invention additionally provides a kind of lung ventilator control device, to the realization for ensureing said method
And application.
In order to solve the above problems, the invention discloses a kind of lung ventilator control method, including：
Obtain the air pressure and the status data for characterizing the lung ventilator fan operation state of lung ventilator outlet side；
When the air pressure of the outlet side is goal pressure, the status data is compared with corresponding predetermined threshold value, sentenced
The use state of the disconnected lung ventilator filter cotton；
Wherein, the predetermined threshold value is included at least one in the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value
It is individual.
Preferably, when the air pressure of the outlet side is goal pressure, by the status data and corresponding predetermined threshold value
Relatively, the step of use state for judging the lung ventilator filter cotton includes：
When the status data is more than or equal to first predetermined threshold value, point out to change filter cotton.
Preferably, when the air pressure of the outlet side is goal pressure, by the status data and corresponding predetermined threshold value
Relatively, the step of use state for judging the lung ventilator filter cotton also includes：
According to the status data, the use ratio of the filter cotton of the lung ventilator is determined.
Preferably, when the air pressure of the outlet side is goal pressure, by the status data and corresponding predetermined threshold value
Relatively, the step of use state for judging the lung ventilator filter cotton also includes：
When the status data is less than the second predetermined threshold value, the flow of the lung ventilator is obtained, when the flow is equal to
Or during less than first flow threshold value, determine the gas outlet blocking of the lung ventilator；Wherein, first predetermined threshold value is more than described
Second predetermined threshold value.
Preferably, methods described also includes：
When the air pressure of the outlet side is less than goal pressure and the status data is more than or equal to maximum preset threshold value,
The flow of the lung ventilator is obtained, when the flow is less than or equal to second flow threshold value, points out to change filter cotton.
Preferably, methods described also includes：
When the air pressure of the outlet side is less than goal pressure and the status data is more than three predetermined threshold values, institute is obtained
The flow of lung ventilator is stated, when the flow is more than the second flow threshold value, the gas outlet for determining the lung ventilator is opened wide；
Wherein, the 3rd predetermined threshold value is more than first predetermined threshold value.
Preferably, in the air pressure of the acquisition lung ventilator outlet side and for characterizing the lung ventilator fan operation state
Status data before, also include：
To be matched with the different working condition of outlet side with the different filter cottons of latus rectum, simulated respiration machine is various to be made
Use situation；
Under the various service conditions, the corresponding predetermined threshold value is obtained.
Preferably, the status data includes the rotating speed of blower fan and/or the electric current of blower fan.
On the other hand, in order to solve the above problems, the invention also discloses a kind of lung ventilator control device, including：
Data acquisition module, for obtaining the air pressure of lung ventilator outlet side and for characterizing the lung ventilator fan operation
The status data of state；
Condition judgment module, for when the air pressure of the outlet side be goal pressure when, by the status data with it is corresponding
Predetermined threshold value compare, judge the use state of the lung ventilator filter cotton；Wherein, the predetermined threshold value includes the first default threshold
At least one in value, the second predetermined threshold value and the 3rd predetermined threshold value.
Preferably, condition judgment module, including：Change prompting submodule, use ratio determination sub-module, blocking determination
Module and unlimited determination sub-module.
Wherein, prompting submodule is changed, for when the status data is more than or equal to first predetermined threshold value, carrying
Show replacing filter cotton.
Use ratio determination sub-module, for according to the status data, determining the use of the filter cotton of the lung ventilator
Ratio.
Blocking determination sub-module, for when the status data is less than the second predetermined threshold value, obtaining the lung ventilator
Flow, when the flow is equal to or less than first flow threshold value, determines the gas outlet blocking of the lung ventilator；Wherein, it is described
First predetermined threshold value is more than second predetermined threshold value.
Unlimited determination sub-module, for when the air pressure of the outlet side less than goal pressure and the status data more than the
During three predetermined threshold values, the flow of the lung ventilator is obtained, when the flow is more than the second flow threshold value, it is determined that described exhale
The gas outlet of suction machine is opened wide；Wherein, the 3rd predetermined threshold value is more than first predetermined threshold value.
Preferably, the replacing prompting submodule, is additionally operable to when the air pressure of the outlet side is less than goal pressure and described
When status data is more than or equal to maximum preset threshold value, the flow of the lung ventilator is obtained, when the flow is less than or equal to the
During two flow thresholds, point out to change filter cotton.
Preferably, described device also includes：
Analog module, for will be matched with the different working condition of outlet side with the different filter cottons of latus rectum, mould
Intend the various service conditions of lung ventilator；Under the various service conditions, the corresponding predetermined threshold value is obtained.
Preferably, the status data includes the rotating speed of blower fan and/or the electric current of blower fan.
To sum up, the embodiment of the present invention is by the air pressure of acquisition lung ventilator outlet side and for characterizing lung ventilator fan operation
The status data of state, and when the air pressure of outlet side is goal pressure, status data is compared with corresponding predetermined threshold value, sentence
The use state of disconnected lung ventilator filter cotton.So as to sensor need not be increased newly, just can be automatically accurate merely with lung ventilator itself part
The use state of filter cotton is really recognized, and points out user to be maintained filter cotton, cleaned or changed in time.Both reduced because not
Filter cotton service condition is checked in time and causes the bulky grain such as dust, dust molecule is sucked the risk of air flue, ensure user's
Using safety, the service life of lung ventilator blower fan is improve again, moreover it is possible to avoid, because changing waste caused by filter cotton too early, reducing
Use cost.
Description of the drawings
Fig. 1 is a kind of lung ventilator control method flow chart provided in an embodiment of the present invention；
Fig. 2 is another kind of lung ventilator control method flow chart provided in an embodiment of the present invention；
Fig. 3 is another lung ventilator control method flow chart provided in an embodiment of the present invention；
Fig. 4 is a kind of lung ventilator control device structured flowchart provided in an embodiment of the present invention；
Fig. 5 is another kind of lung ventilator control device structured flowchart provided in an embodiment of the present invention.
Specific embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, it is below in conjunction with the accompanying drawings and concrete real
The present invention is further detailed explanation to apply mode.
One of the core concepts of the embodiments of the present invention is, the use state of filter cotton and blower fan turns in identification of breathing machine
The corresponding relation of the status data such as speed or electric current, and using the corresponding relation and the rotating speed or current data of monitoring acquisition,
The use state of filter cotton is determined, to point out user to be changed to filter cotton or maintained at the appropriate moment.
Embodiment one
With reference to Fig. 1, flow chart the step of give a kind of lung ventilator control method provided in an embodiment of the present invention specifically may be used
To comprise the steps：
Step 101, obtains the air pressure and the status number for characterizing lung ventilator fan operation state of lung ventilator outlet side
According to.
Lung ventilator generally by blower fan drive system, filter cotton, control system, man-machine interactive system and pressure sensor and
The devices such as flow sensor are constituted.Wherein, blower fan drive system includes blower fan and gas circuit, and gas circuit includes air inlet end and outlet side,
Air inlet end is the gas circuit that ambient atmos enter lung ventilator, and outlet side is gas circuit of the lung ventilator to user's supply gas.Filter cotton position
In the air inlet end of lung ventilator, for filtering ambient atmos, with the cleanliness factor of lift gas.
Pressure sensor is used to measure the air pressure of outlet side gas circuit.Flow sensor is used to measure the outlet side unit interval
Gas flow.Control system is by sending the status data control for characterizing lung ventilator fan operation state to blower fan drive system
Blower fan processed exports different rotating speeds, wherein, status data includes the rotating speed of blower fan and/or the electric current of blower fan.Control system is by inspection
The measurement result of pressure measurement force snesor and flow sensor, control blower fan drive system adjustment rotating speed, so that the air pressure of outlet side
Reach goal pressure, it is ensured that the therapeutic effect to user.Wherein, goal pressure can be a value, or a value
Scope.
Filter cotton is located at air inlet end, and when gas flows through filter cotton, filter cotton air-vent is equivalent to equivalent latus rectum.With ash
Trifle in the world thing is constantly accumulated on filter cotton, and filter cotton vapour lock increases therewith, and air inlet end vapour lock constantly increases, and the equivalent of filter cotton is led to
Footpath diminishes.Because the Long-Time Service of filter cotton piles up a large amount of dusts, the equivalent latus rectum of air intake can diminish.Can be by obtaining breathing
The air pressure of machine outlet side and the status data for characterizing lung ventilator fan operation state, determine the use state of filter cotton,
And then take specific aim measure to be adjusted.
Step 102, when the air pressure of outlet side is goal pressure, status data is compared with corresponding predetermined threshold value, is sentenced
The use state of disconnected lung ventilator filter cotton.
When the air pressure of outlet side reaches goal pressure, show that lung ventilator blower fan is stable, due in advance
The status data of blower fan and the corresponding relation of filter cotton use state are obtained, therefore can be pre- with corresponding by fan condition data
If threshold value compares, the use state of lung ventilator filter cotton is judged.Wherein, the use state of filter cotton at least includes exceeding the time limit to use,
Exceed the time limit, using filter cotton is referred to after the use of a period of time, as dust debris are constantly accumulated on filter cotton, to filter
The equivalent latus rectum of cotton is decreased to predetermined threshold value, if being continuing with that user's using effect, the now use state of filter cotton will be affected
As exceed the time limit to use.
Specifically, when the use state of filter cotton is to exceed the time limit to use, the dust debris blocked in filter cotton will directly be led
Growing for bacterium is caused, and greatly improves the risk that bulky grain molecule (dust, dust etc.) sucks respiratory tract, have a strong impact on user
Use, therefore filter cotton can be changed or maintained in the timing node prompting.
To sum up, the embodiment of the present invention is by the air pressure of acquisition lung ventilator outlet side and for characterizing lung ventilator fan operation
The status data of state, and when the air pressure of outlet side is goal pressure, status data is compared with corresponding predetermined threshold value, sentence
The use state of disconnected lung ventilator filter cotton.So as to sensor need not be increased newly, just can be automatically accurate merely with lung ventilator itself part
The use state of filter cotton is really recognized, and points out user to be maintained filter cotton, cleaned or changed in time.Both reduced because not
Filter cotton service condition is checked in time and causes the bulky grain such as dust, dust molecule is sucked the risk of air flue, ensure user's
Using safety, the service life of lung ventilator blower fan is improve again, moreover it is possible to avoid, because changing waste caused by filter cotton too early, reducing
Use cost.
Embodiment two
With reference to Fig. 2, on the basis of above-described embodiment, the present embodiment is discussed further lung ventilator control method.Concrete step
It is rapid as follows：
Step 201, the various service conditions of simulated respiration machine obtain corresponding predetermined threshold value.
Because after lung ventilator product is made, the characteristic parameter of lung ventilator Each part just can determine.Therefore, exhaling
Under different service conditions, the status data such as rotating speed, electric current of lung ventilator blower fan and filter cotton use state exist really suction machine
Fixed corresponding relation.In order to determine the corresponding relation, can the various service conditions of first simulated respiration machine, then measure it is various in the case of
The rotating speed and/or electric current of blower fan, just can obtain the status data of blower fan and the corresponding relation of filter cotton use state, and right
The predetermined threshold value answered.Wherein, the rotating speed of blower fan can be obtained by the revolution number of unit of account time fan leaf, blower fan
Electric current can pass through the voltage at fixed resistance two ends in measuring circuit and obtain.For example, in order to determine the electric current of lung ventilator blower fan with
The corresponding relation of filter cotton use state, can respectively measure corresponding blower fan electricity in the various service conditions of simulated respiration machine
Flow valuve, because every kind of service condition corresponds to respectively the different use states of filter cotton, thus, it is possible to obtain filter cotton is in difference
During use state, corresponding blower fan current value, and then can determine that the electric current of lung ventilator blower fan is right with filter cotton use state
Should be related to.
Specifically, first will can be matched with the different working condition of outlet side with the different filter cottons of latus rectum, mould
Intend the various service conditions of lung ventilator.Wherein, different latus rectums at least include the first latus rectum and the second latus rectum, the mistake with the first latus rectum
Filter pulp is used to simulate filter cotton unused state, and the filter cotton with the second latus rectum is used to simulating filter cotton and exceeds the time limit use state.
Outlet side different working condition includes wearing breathable gas mask, opens wide and block.
It can be assumed for instance that when air inlet end filter cotton is in unused state, the first latus rectum is 20mm, and filter cotton is in super
During phase use state, the second latus rectum is 10mm.Latus rectum when breathable gas mask is worn in outlet side is 4mm, logical when outlet side is opened wide
Footpath is 15mm, and latus rectum when outlet side blocks is 0mm.
After the various service conditions of simulated respiration machine, under various service conditions, when respectively measurement air pressure reaches goal pressure
The status data of lung ventilator blower fan and the gas flow of outlet side.
Specifically, if characterizing lung ventilator fan operation state with the rotating speed of blower fan, when air inlet end is using with the second latus rectum
Filter cotton, when breathable gas mask is worn in outlet side, measure the rotating speed of lung ventilator blower fan, and it is pre- that the rotating speed for measuring is labeled as into first
If threshold value；
When air inlet end is using the filter cotton with the first latus rectum, when breathable gas mask is worn in outlet side, lung ventilator blower fan is measured
Rotating speed, and the rotating speed for measuring is labeled as into the second predetermined threshold value.
If characterizing lung ventilator fan operation state with the electric current of blower fan, when air inlet end is using the filtration with the second latus rectum
Cotton, when breathable gas mask is worn in outlet side, measures the electric current of lung ventilator blower fan, and the electric current for measuring is labeled as into the first default threshold
Value；
When air inlet end is using the filter cotton with the first latus rectum, when breathable gas mask is worn in outlet side, lung ventilator blower fan is measured
Electric current, and the electric current for measuring is labeled as into the second predetermined threshold value.
In addition, when air inlet end is using the filter cotton with the first latus rectum, when outlet side blocks, measuring the gas stream of outlet side
Amount, and the gas flow for measuring is labeled as into first flow threshold value；
When air inlet end is using the filter cotton with the second latus rectum, when outlet side is opened wide, the gas flow of outlet side is measured, and
By the gas flow for measuring, second flow threshold value is labeled as.
In order to ensure that fan safe operates, lung ventilator after it has been manufactured, can also preset the 3rd predetermined threshold value, if status data
By taking rotating speed as an example, the 3rd predetermined threshold value is the default maximum speed limit of lung ventilator blower fan, i.e. lung ventilator, can in normal work
The maximum (top) speed for reaching.
Furthermore it is possible to pass through the data group that one group of experiment test is obtained, in correction same model lung ventilator, every equipment goes out
The relation of gas end air pressure and rotating speed.
For example, judge whether each latus rectum filter cotton of air inlet end and the various service conditions in outlet side correct successively.If not
Correction, then simulate the service condition, and the next item down is corrected if correcting.For example, if the filter cotton of the first latus rectum is not corrected, will
Filter cotton is replaced by the filter cotton of the first latus rectum and is corrected, if the filter cotton of the first latus rectum is corrected, continuation judges second
Whether the filter cotton of latus rectum corrects.All after the completion of correction, in the range of record preset pressure, the state corresponding to each atmospheric pressure value
Data and flow.
Step 202, monitors the status data of the air pressure, flow and lung ventilator blower fan of lung ventilator outlet side.
Specifically, in order to accurately judge the use state of the currently used situation of lung ventilator and filter cotton, can be to breathing
The status data of the air pressure, flow and lung ventilator blower fan of machine outlet side is monitored, and the current data of each parameter is obtained in real time,
And the fan condition data of acquisition in advance and the corresponding relation of filter cotton use state are combined, lung ventilator is adjusted, so that
Lung ventilator continuous and effective works.
Step 203, analyzes the air pressure of outlet side.
According to the air pressure and the relativity of goal pressure of outlet side, corresponding determination strategy is performed.Wherein, goal pressure
Can be atmospheric pressure value, or air pressure range.
When the air pressure of outlet side exceedes goal pressure, the rotating speed or electric current for reducing lung ventilator blower fan can be passed through, so that
The air pressure of outlet side is down to goal pressure.
Specifically, because filter cotton is in air inlet end, if filter cotton blocks the gas that the air inlet end unit interval will be caused to enter
Body flow is reduced, and so as to affect the gas flow of the unit interval of outlet side, and then causes outlet side air pressure to decline.That is filter cotton
The change of use state is not result in that the air pressure of outlet side rises, therefore the air pressure of outlet side exceedes goal pressure and lung ventilator wind
The status data of machine has direct relation, can pass through the rotating speed or electric current for reducing lung ventilator blower fan, so that the air pressure of outlet side
It is down to goal pressure.
When the air pressure of outlet side is not less than goal pressure, two kinds of situations can be divided into and be described.
On the one hand, when the air pressure of outlet side is less than goal pressure, can be judged according to the status data of lung ventilator blower fan
Whether blower fan needs to improve rotating speed, so that the air pressure of outlet side rises to goal pressure.Specifically, air pressure miss the mark pressure can
Can just start shooting for lung ventilator, be in air pressure ascent stage, it is also possible to there is exception for lung ventilator, cause the air pressure of outlet side
Goal pressure cannot be risen to.Improve fan condition data if without exception to continue to run with.
On the other hand, when outlet side air pressure be goal pressure when, can according to the status data of lung ventilator blower fan, it is determined that
The use state of filter cotton.Specifically, the air pressure of outlet side reaches goal pressure, shows that lung ventilator has been enter into stable operation rank
Section, can judge whether the air pressure of outlet side reaches goal pressure according to the gas flow of the status data of blower fan and outlet side
It is extremely caused for lung ventilator.If without exception, can be according to fan condition data, with reference to the advance fan condition data for obtaining
With the use state that the corresponding relation of filter cotton use state determines filter cotton, if the use state of filter cotton not up to needs more
The use state of exceeding the time limit changed, then continue to run with blower fan.
Step 204, analyzes the status data of lung ventilator blower fan.
Specifically, status data can be compared with corresponding predetermined threshold value, according to comparative result, performs corresponding judgement
Strategy or concrete measure.Status data is by taking rotating speed as an example：
When the rotating speed of lung ventilator blower fan is not up to the second predetermined threshold value, can be true according to the air pressure of outlet side and flow
It is fixed whether to need to improve rotating speed.If the air pressure miss the mark pressure of outlet side, improves rotation speed of fan.If the air pressure of outlet side
Goal pressure has been reached, then whether the flow for judging outlet side is equal to or less than first flow threshold value.Wherein, the 3rd predetermined threshold value
More than the first predetermined threshold value, the first predetermined threshold value is more than the second predetermined threshold value.
When the rotating speed of lung ventilator blower fan is between the first predetermined threshold value and the second predetermined threshold value, if the air pressure of outlet side is not
Goal pressure is reached, then improves rotation speed of fan.If the air pressure of outlet side has reached goal pressure, blower fan, and root are continued to run with
Determine the use ratio of filter cotton according to current rotating speed.Specifically, due to the dust accumulated in filter cotton in use progressively
Reduce the latus rectum of filter cotton, to reach goal pressure, rotation speed of fan is improved therewith, when filter cotton is in unused state, wind
The rotating speed of machine is the second predetermined threshold value, and when filter cotton is in the critical point of use state of exceeding the time limit, the rotating speed of blower fan is first pre-
If threshold value, thus can be according to current rotating speed between the second predetermined threshold value and the first predetermined threshold value value position, it is determined that
The ratio that filter pulp is used.Rotation speed of fan can be linear with the relation of filter cotton use ratio, or it is nonlinear.With
As a example by linear relationship, it is assumed that the second predetermined threshold value is 10000 revs/min, and the first predetermined threshold value is 15000 revs/min, and current rotating speed is
12000 revs/min, then the use ratio that can calculate current filter cotton is 40%.
When the rotating speed of lung ventilator blower fan is more than the first predetermined threshold value, but during not up to three predetermined threshold value, if outlet side
Air pressure miss the mark pressure, then still improve rotation speed of fan.If the air pressure of outlet side has reached goal pressure, it is determined that filter
Cotton is in use state of exceeding the time limit.Need to notify user to change or maintain.
When the rotating speed of lung ventilator blower fan reaches three predetermined threshold values, judge outlet side gas flow whether more than second
Flow threshold.
Step 205, analyzes outlet side gas flow.
Specifically, when the air pressure of outlet side has reached goal pressure, but gas flow is equal to or less than first flow threshold value
When, determine that outlet side blocks.
When the status data of lung ventilator blower fan has reached the 3rd predetermined threshold value, and outlet side gas flow is more than second flow
When, determine that outlet side is opened wide, that is, do not wear breathable gas mask.
Step 206 threshold value, according to different analysis results, performs countermeasure.
When lung ventilator outlet side is opened wide, reported to the police by means such as acousto-optics, point out user's breathable gas mask to come off, need to be worn
Gas mask.
When lung ventilator outlet side blocks, reported to the police by means such as acousto-optics, point out user outlet side to there is shelter, need to move
Open shelter.
When filter cotton is in unused state, user's filter cotton is pointed out for new filter cotton, or prompting and filtering cotton is more
Change.
When filter cotton is in use state, user filter cotton use ratio is pointed out, so as to play the work of early warning
With.
When filter cotton in exceed the time limit use state when, point out the user filter cotton to be continuing with, need more to renew
Filter cotton, or filter cotton is maintained.
To sum up, the embodiment of the present invention obtains corresponding predetermined threshold value by the various service conditions of simulated respiration machine, and monitors
The status data of the air pressure, flow and lung ventilator blower fan of lung ventilator outlet side, by air pressure, the lung ventilator wind of analyzing outlet side
The status data and outlet side gas flow of machine determine lung ventilator blower fan with the presence or absence of outlet side block or open wide wait exception feelings
Condition, and determine the use state of filter cotton.The use state of abnormal conditions and filter cotton further according to lung ventilator, performs correspondence
Measure is normally used with the machine of ensuring respiration.So as to sensor need not be increased newly, just can be automatically accurate merely with lung ventilator itself part
Really the various abnormal conditions of the use state of identification filter cotton and lung ventilator, can not only in time point out user to enter filter cotton
Row maintenance, cleaning are changed.And can the currently used ratio of real-time reminding user filtering cotton in use, effectively play
The effect of early warning.Both reduced causes the bulky grain molecule such as dust, dust because not checking filter cotton service condition in time
The risk of suction air flue, ensures that user's uses safety, the service life of lung ventilator blower fan is improve again, moreover it is possible to avoid because too early
Change and wasted caused by filter cotton, reduce use cost.
Embodiment three
Present embodiments provide in actual treatment, another lung ventilator control method specifically includes following operating procedure：
With reference to Fig. 3, the lung ventilator control method flow chart of the offer of the embodiment of the present invention three is given.
Step 301, obtains goal pressure.
The goal pressure arranged by user is obtained, the goal pressure can be an atmospheric pressure value, or air pressure value
Scope.
Step 302, obtains the corresponding relation between outlet side air pressure, flow and fan condition data under different situations.
Specifically, obtain beforehand through the outlet side air pressure, flow and fan condition number simulated obtained by various situations
Corresponding relation according between.
Step 303, runs blower fan.
By running lung ventilator blower fan, to lung ventilator gas circuit the gas of flowing is provided.Gas is sucked from air inlet end, and will
Gas is transmitted to outlet side along gas circuit, is supplied to user.
Step 304, obtains the status data of the air pressure, flow and lung ventilator blower fan of current lung ventilator outlet side.
Lung ventilator can be obtained and work as in the case of without the need for additionally increasing sensor, using the sensor of lung ventilator itself
The status data of the air pressure, flow and lung ventilator blower fan of front lung ventilator outlet side.
Step 305, judges whether air pressure is goal pressure.
In order to realize the therapeutic effect of lung ventilator, whether the air pressure for needing to judge outlet side is goal pressure.
If so, the i.e. air pressure of outlet side is steadily to goal pressure, execution step 315；
If it is not, i.e. the air pressure of outlet side is not yet steadily to goal pressure, execution step 306.
Step 306, judges whether air pressure exceedes goal pressure.
Air pressure steadily to goal pressure can not be divided into two kinds of situations, and one kind is that air pressure has exceeded goal pressure, another kind of
It is air pressure miss the mark pressure.
If air pressure has exceeded goal pressure, show that current gas pressure is too high, execution step 307；
If air pressure miss the mark pressure, show that current gas pressure cannot meet user's Treatment need, need to fan condition
Data and outlet side flow determine whether, execution step 308.
Step 307, reduces rotation speed of fan.
Specifically, when air pressure exceedes goal pressure, blower fan can be run by reducing rotating speed, realizes reducing air pressure.From
And make air pressure be down to goal pressure.
Whether step 308, judge status data more than the second predetermined threshold value.
Wherein, the second predetermined threshold value is used to characterize air inlet end using the filter cotton with the first latus rectum, and outlet side is worn
The status data of blower fan during gas mask.I.e. under lung ventilator normal operation, the filter cotton of air inlet end is in unused state, goes out
The status data of blower fan when breathable gas mask is worn at gas end.
If status data may just bring into operation not less than the second predetermined threshold value, blower fan, status data is in raised bench
Section, therefore temporarily miss the mark pressure, execution step 309.
If status data is more than the second predetermined threshold value, execution step 310.
Step 309, improves rotation speed of fan.
Specifically, when air pressure miss the mark pressure, blower fan can be run by improving rotating speed, realizes boost air pressure.
So that air pressure rises to goal pressure.
Whether step 310, judge status data more than the first predetermined threshold value.
Wherein, the first predetermined threshold value is used to characterize air inlet end using the filter cotton with the second latus rectum, and outlet side is worn
The status data of blower fan during gas mask.I.e. under lung ventilator normal operation, the filter cotton of air inlet end is in use state of exceeding the time limit,
The status data of blower fan when breathable gas mask is worn in outlet side.
If not less than the first predetermined threshold value, diminish because of filter cotton latus rectum causes the air inlet end unit interval to status data
Enter tolerance not enough, it is possible to be in fan condition data and adapt to filter cotton use state changes phase, therefore air pressure is not up to
Goal pressure, execution step 309.
If status data is more than the first predetermined threshold value, execution step 311.
Step 311, judges whether status data reaches the 3rd predetermined threshold value.
Wherein, the 3rd predetermined threshold value is used to characterize the default maximum speed limit of lung ventilator blower fan.
If status data is not up to the 3rd predetermined threshold value, because blower fan is still in safe work state, to avoid the external world from disturbing
Although the dynamic status data for causing lung ventilator blower fan is more than the first predetermined threshold value, air pressure still miss the mark pressure, or
Though filter cotton is being continuing with use state of exceeding the time limit.Can continue to improve status number by execution step 309
According to.
If status data has reached the 3rd predetermined threshold value, execution step 312.
Step 312, judges whether flow exceedes second flow threshold value.
Wherein, second flow threshold value is used to characterize air inlet end using the filter cotton with the second latus rectum, when outlet side is opened wide
The status data of blower fan.Although i.e. lung ventilator filter cotton in cannot state, the air inlet end unit interval enter tolerance compared with
It is low, but because outlet side is opened wide, therefore the flow of outlet side is higher.
If flow has exceeded second flow threshold value, show that outlet side is opened wide, execution step 313.
If flow is not less than second flow threshold value, show due to air inlet end filter cotton Severe blockage so that the unit interval
Enter tolerance wretched insufficiency, even if so as to cause status data to have been maxed out status data, but still outlet side gas cannot be made
Pressure reaches goal pressure, execution step 314.
Step 313, points out outlet side to open wide.
Specifically, by means such as acousto-optics user's lung ventilator outlet side can be pointed out to open wide.Need to wear breathable gas mask.
Step 314, prompting and filtering cotton is in use state of exceeding the time limit.
Specifically, the user filter cotton can be pointed out to be continuing with, needs more to renew filter cotton, or to filter cotton
Maintained.
Whether step 315, judge status data more than the second predetermined threshold value.
In the case where air pressure is goal pressure, judge that status data, whether more than the second predetermined threshold value, can be used for sentencing
The disconnected situation with the presence or absence of outlet side blocking, if outlet side blocking, when status data is relatively low, outlet side air pressure just can reach
To goal pressure.Can be used for judging the use state of filter cotton.
Specifically, if status data is more than the second predetermined threshold value, execution step 316；
If status data is not less than the second predetermined threshold value, execution step 319.
Whether step 316, judge status data more than the first predetermined threshold value.
Specifically, if status data not less than the first predetermined threshold value, i.e. fan condition data in the first predetermined threshold value and
Between two predetermined threshold values.According to status data and the corresponding relation of filter cotton use state, it may be determined that now filter cotton is in
State in use, execution step 317.
If status data is more than the first predetermined threshold value, according to status data and the corresponding relation of filter cotton use state,
Can determine filter cotton in use state of exceeding the time limit, execution step 318.
Step 317, calculates filter cotton use ratio and points out user.
Specifically, value position that can be according to current status data between the first predetermined threshold value and the second predetermined threshold value
Put, determine the ratio that filter cotton is used.Fan condition data can be linear with the relation of filter cotton use ratio, it is also possible to
For nonlinear.By taking linear relationship as an example, it is assumed that the second predetermined threshold value be 10000 revs/min, the first predetermined threshold value be 15000 turns/
Point, current status data is 12000 revs/min, then the use ratio that can calculate current filter cotton is 40%.
Step 318, prompting and filtering cotton is in use state of exceeding the time limit.
Specifically, the user filter cotton can be pointed out to be continuing with, needs more to renew filter cotton, or to filter cotton
Maintained.
Whether step 319, judge status data less than the second predetermined threshold value.
Status data includes two kinds of situations not less than the second predetermined threshold value, and one kind is status data less than the second default threshold
Value, another kind is that status data is equal to the second predetermined threshold value.
If status data is less than the second predetermined threshold value, and now outlet side air pressure has reached goal pressure, it can be determined that
Now outlet side may block, to further determine that outlet side state, execution step 320.
If status data is equal to the second predetermined threshold value, during lung ventilator filter cotton is likely to be at from unused state to use
The stage of state switching.Continue to run with blower fan.
Step 320, judges whether flow is equal to or less than first flow threshold value.
Wherein, first flow threshold value is used to characterize air inlet end using the filter cotton with the first latus rectum, when outlet side blocks
The status data of blower fan.Although i.e. lung ventilator filter cotton is in unused state, the air inlet end unit interval to enter tolerance more sufficient,
But due to outlet side blocking, therefore the flow of outlet side is relatively low, close to zero.
If flow is equal to or less than first flow threshold value, show that outlet side blocks, execution step 321.
If flow is more than first flow threshold value, although causing the not up to second default threshold because of extraneous factor disturbance
Value, but still outlet side air pressure can be made to reach goal pressure.Continue to run with blower fan.
Step 321, points out outlet side blocking.
Specifically, by means such as acousto-optics user's lung ventilator outlet side can be pointed out to open wide.Need to wear breathable gas mask.
To sum up, the embodiment of the present invention by obtaining goal pressure, and obtains outlet side under different situations in actual treatment
Corresponding relation between air pressure, flow and fan condition data, air pressure, flow according to current lung ventilator outlet side and exhales
The status data of suction machine blower fan, judges that determining that lung ventilator blower fans are blocked with the presence or absence of outlet side or opened wide waits exception by a series of
Situation, and determine the use state of filter cotton.The use state of abnormal conditions and filter cotton further according to lung ventilator, it is right to perform
Measure is answered normally to use with the machine of ensuring respiration.So as to sensor need not be increased newly, just can be automatic merely with lung ventilator itself part
The use state of filter cotton and the various abnormal conditions of lung ventilator are accurately identified, user can not only be in time pointed out to filter cotton
Maintained, cleaned or changed.And can the currently used ratio of real-time reminding user filtering cotton in use, effectively rise
The effect of early warning is arrived.Both reduced causes the bulky grains such as dust, dust point because not checking filter cotton service condition in time
The risk of son suction air flue, ensures that user's uses safety, the service life of lung ventilator blower fan is improve again, moreover it is possible to avoid because of mistake
Early replacing waste caused by filter cotton, reduces use cost.
Example IV
On the basis of above-described embodiment, the present embodiment additionally provides a kind of lung ventilator control device, and the device can be answered
For lung ventilator.
With reference to Fig. 4, a kind of structured flowchart of lung ventilator control device provided in an embodiment of the present invention is given, specifically can be with
Including such as lower module：Data acquisition module 401 and condition judgment module 402.
Wherein, data acquisition module 401, for obtaining the air pressure of lung ventilator outlet side and for characterizing the lung ventilator
The status data of fan operation state；
Condition judgment module 402, for when the air pressure of the outlet side be goal pressure when, by the status data with it is right
The predetermined threshold value answered compares, and judges the use state of the lung ventilator filter cotton；Wherein, the predetermined threshold value is default including first
At least one in threshold value, the second predetermined threshold value and the 3rd predetermined threshold value.
With reference to Fig. 5, another kind of lung ventilator control device structure chart provided in an embodiment of the present invention is given.
In an alternative embodiment of the invention, condition judgment module 402 includes：Change prompting submodule 4021, using than
Example determination sub-module 4022, blocking determination sub-module 4023 and unlimited determination sub-module 4024.
Wherein, prompting submodule 4021 is changed, for being more than or equal to first predetermined threshold value when the status data
When, point out to change filter cotton.
Use ratio determination sub-module 4022, for according to the status data, determining the filter cotton of the lung ventilator
Use ratio.
Blocking determination sub-module 4023, for when the status data is less than the second predetermined threshold value, obtaining the breathing
The flow of machine, when the flow is equal to or less than first flow threshold value, determines the gas outlet blocking of the lung ventilator；Wherein,
First predetermined threshold value is more than second predetermined threshold value.
Unlimited determination sub-module 4024, for when the air pressure of the outlet side is less than goal pressure and the status data is big
When three predetermined threshold values, the flow of the lung ventilator is obtained, when the flow is more than the second flow threshold value, determine institute
The gas outlet for stating lung ventilator is opened wide；Wherein, the 3rd predetermined threshold value is more than first predetermined threshold value.
Specifically, the replacing prompting submodule 4021, be additionally operable to the air pressure when the outlet side less than goal pressure and
When the status data is more than or equal to maximum preset threshold value, the flow of the lung ventilator is obtained, when the flow is less than or waits
When second flow threshold value, point out to change filter cotton.
Optionally, the lung ventilator control device also includes：
Analog module 400, for will be matched with the different working condition of outlet side with the different filter cottons of latus rectum,
The various service conditions of simulated respiration machine；Under the various service conditions, the corresponding predetermined threshold value is obtained.
To sum up, the embodiment of the present invention obtains the air pressure of lung ventilator outlet side and for table by data acquisition module 401
The status data of lung ventilator fan operation state is levied, and by condition judgment module 402 when the air pressure of outlet side is goal pressure
When, status data is compared with corresponding predetermined threshold value, judge the use state of lung ventilator filter cotton.So as to without the need for newly-increased sensing
Device, just with the use state of automatic accurate identification filter cotton, and user can be in time pointed out to mistake merely with lung ventilator itself part
Filter pulp is maintained, cleaned or changed.Both reduced causes dust, dust etc. because not checking filter cotton service condition in time
Bulky grain molecule sucks the risk of air flue, ensures that user's uses safety, and the service life of lung ventilator blower fan is improve again, moreover it is possible to
Avoid, because changing waste caused by filter cotton too early, reducing use cost.
For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, it is related
Part is illustrated referring to the part of embodiment of the method.
Each embodiment in this specification is described by the way of progressive, what each embodiment was stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.
Those skilled in the art are it should be appreciated that the embodiment of the embodiment of the present invention can be provided as method, device or calculate
Machine program product.Therefore, the embodiment of the present invention can using complete hardware embodiment, complete software embodiment or with reference to software and
The form of the embodiment of hardware aspect.And, the embodiment of the present invention can using wherein include computer at one or more can
With in the computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of program code
The form of the computer program of enforcement.
The embodiment of the present invention is with reference to method according to embodiments of the present invention, terminal device (system) and computer program
The flow chart and/or block diagram of product is describing.It should be understood that can be by computer program instructions flowchart and/or block diagram
In each flow process and/or square frame and flow chart and/or the flow process in block diagram and/or square frame combination.These can be provided
Computer program instructions to all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing terminals set
Standby processor is producing a machine so that held by the processor of computer or other programmable data processing terminal equipments
Capable instruction is produced for realizing in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or multiple square frames
The device of the function of specifying.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing terminal equipments
In the computer-readable memory for working in a specific way so that the instruction being stored in the computer-readable memory produces bag
The manufacture of command device is included, the command device is realized in one side of one flow process of flow chart or multiple flow processs and/or block diagram
The function of specifying in frame or multiple square frames.
These computer program instructions also can be loaded into computer or other programmable data processing terminal equipments so that
On computer or other programmable terminal equipments perform series of operation steps to produce computer implemented process, so as to
The instruction performed on computer or other programmable terminal equipments is provided for realizing in one flow process of flow chart or multiple flow processs
And/or specify in one square frame of block diagram or multiple square frames function the step of.
Although having been described for the preferred embodiment of the embodiment of the present invention, those skilled in the art once know base
This creative concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to
Including preferred embodiment and fall into having altered and changing for range of embodiment of the invention.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that a series of process, method, article or terminal device including key elements is not only wrapped
Those key elements are included, but also including other key elements being not expressly set out, or also include for this process, method, article
Or the key element that terminal device is intrinsic.In the absence of more restrictions, by wanting that sentence "including a ..." is limited
Element, it is not excluded that also there is other identical element in the process including the key element, method, article or terminal device.
Above to a kind of lung ventilator control method provided by the present invention and device, it is described in detail, herein should
The principle and embodiment of the present invention are set forth with specific case, the explanation of above example is only intended to help and manages
The solution method of the present invention and its core concept；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention,
Will change in specific embodiment and range of application, in sum, this specification content should not be construed as to this
Bright restriction.
Claims (16)
1. a kind of lung ventilator control method, it is characterised in that include：
Obtain the air pressure and the status data for characterizing the lung ventilator fan operation state of lung ventilator outlet side；
When the air pressure of the outlet side is goal pressure, the status data is compared with corresponding predetermined threshold value, judge institute
State the use state of lung ventilator filter cotton；
Wherein, the predetermined threshold value is included at least one in the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value.
2. method according to claim 1, it is characterised in that described when the air pressure of the outlet side is goal pressure,
The status data is compared with corresponding predetermined threshold value, is included the step of the use state for judging the lung ventilator filter cotton：
When the status data is more than or equal to first predetermined threshold value, point out to change filter cotton.
3. method according to claim 1, it is characterised in that described when the air pressure of the outlet side is goal pressure,
The status data is compared with corresponding predetermined threshold value, is included the step of the use state for judging the lung ventilator filter cotton：
According to the status data, the use ratio of the filter cotton of the lung ventilator is determined.
4. method according to claim 1, it is characterised in that described when the air pressure of the outlet side is goal pressure,
The status data is compared with corresponding predetermined threshold value, is included the step of the use state for judging the lung ventilator filter cotton：
When the status data is less than the second predetermined threshold value, the flow of the lung ventilator is obtained, when the flow is equal to or little
When first flow threshold value, the gas outlet blocking of the lung ventilator is determined；
Wherein, first predetermined threshold value is more than second predetermined threshold value.
5. method according to claim 1, it is characterised in that methods described also includes：
When the air pressure of the outlet side is less than goal pressure and the status data is more than or equal to maximum preset threshold value, obtain
The flow of the lung ventilator, when the flow is less than or equal to second flow threshold value, points out to change filter cotton.
6. method according to claim 5, it is characterised in that methods described also includes：
When the air pressure of the outlet side is less than goal pressure and the status data is more than three predetermined threshold values, exhale described in acquisition
The flow of suction machine, when the flow is more than the second flow threshold value, the gas outlet for determining the lung ventilator is opened wide；
Wherein, the 3rd predetermined threshold value is more than first predetermined threshold value.
7. method according to claim 1, it is characterised in that the acquisition lung ventilator outlet side air pressure and be used for
Before characterizing the status data of the lung ventilator fan operation state, also include：
To be matched with the different working condition of outlet side with the different filter cottons of latus rectum, the various use feelings of simulated respiration machine
Condition；
Under the various service conditions, the corresponding predetermined threshold value is obtained.
8. the method according to any one of claim 1 to 7, it is characterised in that
The status data includes the rotating speed of blower fan and/or the electric current of blower fan.
9. a kind of lung ventilator control device, it is characterised in that include：
Data acquisition module, for obtaining the air pressure of lung ventilator outlet side and for characterizing the lung ventilator fan operation state
Status data；
Condition judgment module, it is for when the air pressure of the outlet side is goal pressure, the status data is pre- with corresponding
If threshold value compares, the use state of the lung ventilator filter cotton is judged；Wherein, the predetermined threshold value include the first predetermined threshold value,
At least one in second predetermined threshold value and the 3rd predetermined threshold value.
10. device according to claim 9, it is characterised in that the condition judgment module, including：
Prompting submodule is changed, for when the status data is more than or equal to first predetermined threshold value, pointing out to change
Filter pulp.
11. devices according to claim 9, it is characterised in that the condition judgment module, also include：
Use ratio determination sub-module, for according to the status data, determining the use ratio of the filter cotton of the lung ventilator.
12. devices according to claim 9, it is characterised in that the condition judgment module, also include：
Blocking determination sub-module, for when the status data is less than the second predetermined threshold value, obtaining the flow of the lung ventilator,
When the flow is equal to or less than first flow threshold value, the gas outlet blocking of the lung ventilator is determined；Wherein, described first is pre-
If threshold value is more than second predetermined threshold value.
13. devices according to claim 9, it is characterised in that
The replacing prompting submodule, is additionally operable to when the air pressure of the outlet side is less than goal pressure and the status data is more than
Or during equal to maximum preset threshold value, the flow of the lung ventilator is obtained, when the flow is less than or equal to second flow threshold value,
Filter cotton is changed in prompting.
14. devices according to claim 13, it is characterised in that the condition judgment module, also include：
Unlimited determination sub-module, for when the air pressure of the outlet side is less than goal pressure and the status data is pre- more than the 3rd
If during threshold value, obtaining the flow of the lung ventilator, when the flow is more than the second flow threshold value, the lung ventilator is determined
Gas outlet open wide；Wherein, the 3rd predetermined threshold value is more than first predetermined threshold value.
15. devices according to claim 9, it is characterised in that described device also includes：
Analog module, for will be matched with the different working condition of outlet side with the different filter cottons of latus rectum, simulation is exhaled
The various service conditions of suction machine；Under the various service conditions, the corresponding predetermined threshold value is obtained.
16. devices according to any one of claim 9 to 15, it is characterised in that
The status data includes the rotating speed of blower fan and/or the electric current of blower fan.
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| CN106620979B (en) | 2019-09-17 |
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