CN106620979B - A kind of ventilator control method and device - Google Patents

A kind of ventilator control method and device Download PDF

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Publication number
CN106620979B
CN106620979B CN201611248740.2A CN201611248740A CN106620979B CN 106620979 B CN106620979 B CN 106620979B CN 201611248740 A CN201611248740 A CN 201611248740A CN 106620979 B CN106620979 B CN 106620979B
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China
Prior art keywords
ventilator
filter cotton
status data
outlet side
preset threshold
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CN201611248740.2A
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Chinese (zh)
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CN106620979A (en
Inventor
牛世腾
刘国胜
庄志
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天津怡和嘉业医疗科技有限公司
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0087Environmental safety or protection means, e.g. preventing explosion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • A61M2205/3334Measuring or controlling the flow rate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/75General characteristics of the apparatus with filters

Abstract

The embodiment of the invention provides a kind of ventilator control method and devices.Wherein, ventilator control method includes: the air pressure for obtaining ventilator outlet side and the status data for characterizing ventilator fan operation state, and when the air pressure of outlet side is goal pressure, by status data compared with corresponding preset threshold, the use state of ventilator filter cotton is judged.Due to without newly-increased sensor, merely with ventilator itself component can automatic accurate identification filter cotton use state, and prompt user maintains filter cotton, cleans or replaces in time.Therefore, both the risk for leading to that the bulky grains molecule such as dust, dust is sucked to air flue because checking filter cotton service condition not in time had been reduced, ensure user using safe, the service life of ventilator blower is improved again, it is also avoided that because of waste caused by replacing filter cotton too early, reduces use cost.

Description

A kind of ventilator control method and device

Technical field

The present invention relates to field of medical technology, more particularly to a kind of ventilator control method and device.

Background technique

Critical medical devices of the ventilator as respiratory tract therapeutic field, it is necessary to guarantee that the gas for being conveyed to user is completely clear It is clean.Wherein, filter cotton plays the role of cleaning gas and filter as the important component in ventilator.The cleaning shape of filter cotton Condition directly affects the health of user.

In the prior art, it in order to which the clean-up performance of filter cotton in the machine of ensuring respiration meets using standard, needs by user Professional judgement is carried out to identify the use state of filter cotton.In order to which user can accurately judge, goods producer is not Big length in the description is only needed to introduce the maintenance and maintenance of filter cotton, supplier also needs when user buys ventilator Relevant training is done in maintenance and maintenance to filter cotton.To ensure that user has professional judgement ability, filter cotton is accurately identified Use state.

But user is during actually using ventilator, often forgets, ignores use state progress to filter cotton Judgement, causes filter cotton that can not be maintained, cleaned or replaced in time, and then filter cotton clean-up performance is caused to be unable to reach often Use standard.The blocking of filter cotton directly results in the growth of bacterium, and sucking respiratory tract bulky grain molecule (dust, dust etc.) Risk greatly improve, shorten the service life of ventilator blower indirectly, and jeopardize the health of people.Pass through setting timing Device, since ventilator particular condition in use otherness is larger, is unable to judge accurately filtering although can play the role of prompting The use state of cotton.By the sensor special of newly-increased identification filter cotton use state, although judgement can be made more accurate, Higher cost.

Summary of the invention

The embodiment of the present invention is not increasing cost the technical problem to be solved is that a kind of ventilator control method is provided In the case of, accurately identify the use state of filter cotton.

Correspondingly, the embodiment of the invention also provides a kind of ventilator control devices, to guarantee the realization of the above method And application.

To solve the above-mentioned problems, the invention discloses a kind of ventilator control methods, comprising:

Obtain the air pressure of ventilator outlet side and the status data for characterizing the ventilator fan operation state;

When the air pressure of the outlet side is goal pressure, by the status data compared with corresponding preset threshold, sentence Break the use state of the ventilator filter cotton;

Wherein, the preset threshold includes at least one in the first preset threshold, the second preset threshold and third predetermined threshold value It is a.

Preferably, when the air pressure of the outlet side is goal pressure, by the status data and corresponding preset threshold The step of comparing, judging the use state of the ventilator filter cotton include:

When the status data is greater than or equal to first preset threshold, replacement filter cotton is prompted.

Preferably, when the air pressure of the outlet side is goal pressure, by the status data and corresponding preset threshold The step of comparing, judging the use state of the ventilator filter cotton further include:

According to the status data, the use ratio of the filter cotton of the ventilator is determined.

Preferably, when the air pressure of the outlet side is goal pressure, by the status data and corresponding preset threshold The step of comparing, judging the use state of the ventilator filter cotton further include:

When the status data is less than the second preset threshold, the flow of the ventilator is obtained, when the flow is equal to Or when being less than first flow threshold value, the gas outlet blocking of the ventilator is determined;Wherein, first preset threshold is greater than described Second preset threshold.

Preferably, the method also includes:

When the air pressure of the outlet side is less than goal pressure and the status data is greater than or equal to maximum preset threshold value, The flow for obtaining the ventilator prompts replacement filter cotton when the flow is less than or equal to second flow threshold value.

Preferably, the method also includes:

When the air pressure of the outlet side is less than goal pressure and the status data is greater than third predetermined threshold value, institute is obtained The flow for stating ventilator determines that the gas outlet of the ventilator is opened wide when the flow is greater than the second flow threshold value;

Wherein, the third predetermined threshold value is greater than first preset threshold.

Preferably, in the air pressure for obtaining ventilator outlet side and for characterizing the ventilator fan operation state Status data before, further includes:

Filter cotton with different latus rectums is matched with the different working condition of outlet side, simulated respiration machine is various to be made Use situation;

Under the various service conditions, the corresponding preset threshold is obtained.

Preferably, the status data includes the revolving speed of blower and/or the electric current of blower.

On the other hand, to solve the above-mentioned problems, the invention also discloses a kind of ventilator control devices, comprising:

Data acquisition module, for obtaining the air pressure of ventilator outlet side and for characterizing the 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 Preset threshold compare, judge the use state of the ventilator filter cotton;Wherein, the preset threshold includes the first default threshold At least one in value, the second preset threshold and third predetermined threshold value.

Preferably, condition judgment module, comprising: replacement prompting submodule, use ratio determine that submodule, blocking determine son Module and unlimited determining submodule.

Wherein, prompting submodule is replaced, for mentioning when the status data is greater than or equal to first preset threshold Show replacement filter cotton.

Use ratio determines submodule, for determining the use of the filter cotton of the ventilator according to the status data Ratio.

It blocks and determines submodule, for obtaining the ventilator when the status data is less than the second preset threshold Flow determines the gas outlet blocking of the ventilator when the flow is equal to or less than first flow threshold value;Wherein, described First preset threshold is greater than second preset threshold.

It opens wide and determines submodule, be less than goal pressure and the status data for the air pressure when the outlet side and be greater than the When three preset thresholds, the flow of the ventilator is obtained, when the flow is greater than the second flow threshold value, is exhaled described in determination The gas outlet of suction machine is opened wide;Wherein, the third predetermined threshold value is greater than first preset threshold.

Preferably, the replacement prompting submodule is also used to be less than goal pressure and described when the air pressure of the outlet side When status data is greater than or equal to maximum preset threshold value, the flow of the ventilator is obtained, when the flow is less than or equal to the When two flow thresholds, replacement filter cotton is prompted.

Preferably, described device further include:

Analog module, for will have the filter cotton of different latus rectums to match with the different working condition of outlet side, mould The quasi- various service conditions of ventilator;Under the various service conditions, the corresponding preset threshold is obtained.

Preferably, the status data includes the revolving speed of blower and/or the electric current of blower.

To sum up, the embodiment of the present invention is by obtaining the air pressure of ventilator outlet side and for characterizing ventilator fan operation The status data of state, and when the air pressure of outlet side is goal pressure, by status data compared with corresponding preset threshold, sentence The use state of disconnected ventilator filter cotton.It, can be automatic quasi- merely with ventilator itself component without increasing sensor newly The really use state of identification filter cotton, and prompt user maintains filter cotton, cleans or replaces in time.Both it had reduced because not Filter cotton service condition is checked in time and leads to the risk that the bulky grains molecule such as dust, dust is sucked to air flue, ensures user's Use service life that is safe, and improving ventilator blower, moreover it is possible to avoid reducing because of waste caused by replacing filter cotton too early Use cost.

Detailed description of the invention

Fig. 1 is a kind of ventilator control method flow chart provided in an embodiment of the present invention;

Fig. 2 is another ventilator control method flow chart provided in an embodiment of the present invention;

Fig. 3 is another ventilator control method flow chart provided in an embodiment of the present invention;

Fig. 4 is a kind of ventilator control device structural block diagram provided in an embodiment of the present invention;

Fig. 5 is another ventilator control device structural block diagram provided in an embodiment of the present invention.

Specific embodiment

In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.

One of the core concepts of the embodiments of the present invention is, the use state of filter cotton and blower turns in identification of breathing machine The corresponding relationship of the status datas such as speed or electric current, and using the corresponding relationship and the revolving speed obtained or current data are monitored, The use state of filter cotton is determined, to prompt user that filter cotton is replaced or maintained at the time of appropriate.

Embodiment one

Referring to Fig.1, a kind of step flow chart of ventilator control method provided in an embodiment of the present invention is given, specifically may be used To include the following steps:

Step 101, the air pressure of ventilator outlet side and the status number for characterizing ventilator fan operation state are obtained According to.

Ventilator usually by blower drive system, filter cotton, control system, man-machine interactive system and pressure sensor and The devices such as flow sensor are constituted.Wherein, blower drive system includes blower and gas circuit, and gas circuit includes air inlet end and outlet side, Air inlet end is the gas circuit that ambient atmos enter ventilator, and outlet side is gas circuit of the ventilator to user's supply gas.Filter cotton position In the air inlet end of ventilator, for filtering ambient atmos, with the cleanliness of lift gas.

Pressure sensor is used to measure the air pressure of outlet side gas circuit.Flow sensor is for measuring the outlet side unit time Gas flow.Control system is by sending the status data control for characterizing ventilator fan operation state to blower drive system Blower processed exports different rotating speeds, wherein status data includes the revolving speed of blower and/or the electric current of blower.Control system passes through inspection The measurement result of measuring pressure sensor and flow sensor, control blower drive system adjusts revolving speed, so that the air pressure of outlet side Reach goal pressure, guarantees the therapeutic effect to user.Wherein, goal pressure can be a value, or a value Range.

Filter cotton is located at air inlet end, and when gas flows through filter cotton, filter cotton air hole is equivalent to equivalent latus rectum.With ash Trifle in the world object is constantly accumulated on filter cotton, and filter cotton vapour lock increases with it, and air inlet end vapour lock constantly increases, and the equivalent of filter cotton is led to Diameter becomes smaller.Since a large amount of dusts are accumulated in the long-time service of filter cotton, the equivalent latus rectum of air intake can become smaller.It can be breathed by obtaining The air pressure of machine outlet side and status data for characterizing ventilator fan operation state, determine the use state of filter cotton, And then specific aim measure is taken to be adjusted.

Step 102, when the air pressure of outlet side is goal pressure, by status data compared with corresponding preset threshold, sentence The use state of disconnected ventilator filter cotton.

When air pressure when outlet side has reached goal pressure, show that ventilator blower is stable, due in advance Obtain blower status data and filter cotton use state corresponding relationship, therefore can by fan condition data with it is corresponding pre- If threshold value comparison, the use state of ventilator filter cotton is judged.Wherein, the use state of filter cotton include at least exceed the time limit using, Exceed the time limit using filter cotton is referred to after use after a period of time, as dust debris are constantly accumulated on filter cotton, filtering The equivalent latus rectum of cotton is decreased to preset threshold, will affect user's using effect if continuing to use, at this time the use state of filter cotton As exceed the time limit using.

Specifically, the use state when filter cotton is to exceed the time limit in use, the dust debris blocked in filter cotton, will directly lead The growth of bacterium is caused, and greatly improves the risk of bulky grain molecule (dust, dust etc.) sucking respiratory tract, seriously affects user It uses, therefore in the timing node can prompt that filter cotton is replaced or maintained.

To sum up, the embodiment of the present invention is by obtaining the air pressure of ventilator outlet side and for characterizing ventilator fan operation The status data of state, and when the air pressure of outlet side is goal pressure, by status data compared with corresponding preset threshold, sentence The use state of disconnected ventilator filter cotton.It, can be automatic quasi- merely with ventilator itself component without increasing sensor newly The really use state of identification filter cotton, and prompt user maintains filter cotton, cleans or replaces in time.Both it had reduced because not Filter cotton service condition is checked in time and leads to the risk that the bulky grains molecule such as dust, dust is sucked to air flue, ensures user's Use service life that is safe, and improving ventilator blower, moreover it is possible to avoid reducing because of waste caused by replacing filter cotton too early Use cost.

Embodiment two

Referring to Fig. 2, on the basis of the above embodiments, the present embodiment is discussed further ventilator control method.Specific step It is rapid as follows:

Step 201, the various service conditions of simulated respiration machine obtain corresponding preset threshold.

Since after ventilator product is made, the characteristic parameter of ventilator Each part can be determined.Therefore, it is exhaling Suction machine is under different service conditions, and the status datas such as revolving speed, electric current of ventilator blower and filter cotton use state exist really Fixed corresponding relationship.In order to determine the corresponding relationship, can the first various service conditions of simulated respiration machine, then measure in various situations The revolving speed and/or electric current of blower can obtain the status data of blower and the corresponding relationship of filter cotton use state and right The preset threshold answered.Wherein, the revolving speed of blower can be obtained by the revolution number of unit of account time fan leaf, blower Electric current can be obtained by the voltage at fixed resistance both ends in measuring circuit.For example, in order to determine the electric current of ventilator blower with The corresponding relationship of filter cotton use state can measure corresponding blower electricity in the various service conditions of simulated respiration machine respectively Flow valuve, since every kind of service condition respectively corresponds the different use states of filter cotton, thus, it is possible to obtain filter cotton is in difference When use state, corresponding blower current value, and then can determine the electric current of ventilator blower and pair of filter cotton use state It should be related to.

Specifically, first the filter cotton with different latus rectums can be matched with the different working condition of outlet side, mould The quasi- various service conditions of ventilator.Wherein, different latus rectums include at least the first latus rectum and the second latus rectum, the mistake with the first latus rectum For simulating filter cotton unused state, the filter cotton with the second latus rectum exceeds the time limit use state filter pulp for simulating filter cotton. Outlet side different working condition includes wearing breathable gas mask, opening wide and block.

It can be assumed for instance that the first latus rectum is 20mm when air inlet end filter cotton is in unused state, filter cotton is in super When 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 Diameter 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 measurement air pressure reaches goal pressure respectively The status data of ventilator blower and the gas flow of outlet side.

Specifically, there is the second latus rectum when air inlet end uses if characterizing ventilator fan operation state with the revolving speed of blower Filter cotton, when breathable gas mask is worn in outlet side, measure the revolving speed of ventilator blower, and the revolving speed measured is pre- labeled as first If threshold value;

When air inlet end uses the filter cotton with the first latus rectum, and breathable gas mask is worn in outlet side, ventilator blower is measured Revolving speed, and by the revolving speed measured be labeled as the second preset threshold.

If characterizing ventilator fan operation state with the electric current of blower, when air inlet end uses the filtering with the second latus rectum Cotton when breathable gas mask is worn in outlet side, measures the electric current of ventilator blower, and the electric current measured is labeled as the first default threshold Value;

When air inlet end uses the filter cotton with the first latus rectum, and breathable gas mask is worn in outlet side, ventilator blower is measured Electric current, and by the electric current measured be labeled as the second preset threshold.

In addition, when outlet side blocks, measuring the gas stream of outlet side when air inlet end uses the filter cotton with the first latus rectum Amount, and the gas flow measured is labeled as first flow threshold value;

When air inlet end use with the second latus rectum filter cotton, when outlet side is opened wide, measure the gas flow of outlet side, and The gas flow that will be measured is labeled as second flow threshold value.

In order to guarantee that fan safe operates, ventilator can also preset third predetermined threshold value after being made, if status data By taking revolving speed as an example, which is the default maximum speed limit of ventilator blower, i.e. ventilator in normal work, can The maximum (top) speed reached.

Furthermore it is possible to the data group obtained by one group of experiment test, in model ventilator, every equipment goes out for correction The relationship of the air pressure of gas end and revolving speed.

For example, successively judging whether each latus rectum filter cotton of air inlet end and the various service conditions in outlet side have corrected.If not Correction, then simulate the service condition, the next item down corrected if having corrected.For example, if the filter cotton of the first latus rectum does not correct, it will The filter cotton that filter cotton is changed to the first latus rectum is corrected, if the filter cotton of the first latus rectum has corrected, continues judgement second Whether the filter cotton of latus rectum has corrected.All after the completion of correction, record within the scope of preset pressure, state corresponding to each atmospheric pressure value Data and flow.

Step 202, the status data of the air pressure of monitoring ventilator outlet side, flow and ventilator blower.

Specifically, for the currently used situation of accurate judgement ventilator and the use state of filter cotton, it can be to breathing The status data of the air pressure of machine outlet side, flow and ventilator blower is monitored, and obtains the current data of each parameter in real time, And the corresponding relationship of the fan condition data and filter cotton use state that obtain in advance is combined, ventilator is adjusted, so that The work of ventilator continuous and effective.

Step 203, the air pressure of outlet side is analyzed.

According to the relativity of the air pressure of outlet side and goal pressure, corresponding determination strategy is executed.Wherein, goal pressure It can be atmospheric pressure value, or air pressure range.

When the air pressure of outlet side be more than goal pressure when, can by reduce ventilator blower revolving speed or electric current so that Goal pressure is down in the air pressure of outlet side.

Specifically, since filter cotton is in air inlet end, if filter cotton blocking will lead to the gas of air inlet end unit time entrance Body flow is reduced, to influence the gas flow of the unit time of outlet side, and then outlet side air pressure is caused to decline.That is filter cotton The air pressure that the variation of use state not will lead to outlet side rises, therefore the air pressure of outlet side is more than goal pressure and ventilator wind The status data of machine has direct relation, can be by the revolving speed or electric current of reduction ventilator blower, so that the air pressure of outlet side It is down to goal pressure.

When air pressure when outlet side is 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 ventilator blower Whether blower needs to improve revolving speed, so that the air pressure of outlet side rises to goal pressure.Specifically, air pressure miss the mark pressure can It can be that ventilator is just switched on, be in air pressure ascent stage, it is also possible to there is exception for ventilator, lead to the air pressure of outlet side Goal pressure can not be risen to.Fan condition data are improved if without exception to continue to run.

On the other hand, it when the air pressure of outlet side is goal pressure, can be determined according to the status data of ventilator blower The use state of filter cotton.Specifically, the air pressure of outlet side reaches goal pressure, show that ventilator has entered stable operation rank Section, can judge whether the air pressure of outlet side reaches goal pressure according to the status data of blower and the gas flow of outlet side It is extremely caused for ventilator.It, can be according to fan condition data, in conjunction with the fan condition data obtained in advance if without exception The use state of filter cotton is determined with the corresponding relationship of filter cotton use state, 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 blower.

Step 204, the status data of ventilator blower is analyzed.

Specifically, according to comparison result, corresponding judgement can be executed by status data compared with corresponding preset threshold Strategy or concrete measure.Status data is by taking revolving speed as an example:

It, can be true according to the air pressure of outlet side and flow when the revolving speed of ventilator blower is not up to the second preset threshold It is fixed whether to need to improve revolving 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 is had reached, then judges whether the flow of outlet side is equal to or less than first flow threshold value.Wherein, third predetermined threshold value Greater than the first preset threshold, the first preset threshold is greater than the second preset threshold.

When the revolving speed of ventilator blower is between the first preset threshold and the second preset threshold, if the air pressure of outlet side is not Reach goal pressure, then improves rotation speed of fan.If the air pressure of outlet side has reached goal pressure, blower, and root are continued to run The use ratio of filter cotton is determined according to current rotating speed.Specifically, gradually due to the dust accumulated in filter cotton in use Reduce the latus rectum of filter cotton, to reach goal pressure, rotation speed of fan is increased accordingly, when filter cotton is in unused state, wind The revolving speed of machine is the second preset threshold, and when filter cotton is in the critical point for use state of exceeding the time limit, the revolving speed of blower is first pre- If threshold value, therefore can be determined according to value position of the current rotating speed between the second preset threshold and the first preset threshold The ratio that filter pulp uses.The relationship of rotation speed of fan and filter cotton use ratio can be linear, or nonlinear.With For linear relationship, it is assumed that the second preset threshold is 10000 revs/min, and the first preset threshold is 15000 revs/min, and current rotating speed is 12000 revs/min, then the use ratio that current filter cotton can be calculated is 40%.

When the revolving speed of ventilator blower is more than the first preset threshold, but not up to third predetermined threshold value when, if outlet side Air pressure miss the mark pressure then still improves rotation speed of fan.If the air pressure of outlet side has reached goal pressure, it is determined that filtering Cotton has been in use state of exceeding the time limit.It needs that user is notified to replace or maintain.

When the revolving speed of ventilator blower has reached third predetermined threshold value, judge whether outlet side gas flow is greater than second Flow threshold.

Step 205, outlet side gas flow is analyzed.

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 ventilator blower has reached third predetermined threshold value, and outlet side gas flow is greater than second flow When, it determines that outlet side is opened wide, i.e., does not wear breathable gas mask.

Step 206 threshold value, according to different analyses as a result, executing countermeasure.

It when ventilator outlet side is opened wide, is alarmed by means such as acousto-optics, prompts user's breathable gas mask to fall off, need to wear Gas mask.

It when the blocking of ventilator outlet side, is alarmed by means such as acousto-optics, prompts user outlet side there are shelter, need to move Open shelter.

When filter cotton is in unused state, prompt user's filter cotton be new filter cotton or prompting and filtering cotton more It changes.

When filter cotton is in use state, user's filter cotton use ratio is prompted, to play the work of early warning With.

It when filter cotton, which is in, exceeds the time limit use state, prompts user's filter cotton that can not continue to use, needs replacing new Filter cotton, or filter cotton is maintained.

To sum up, the embodiment of the present invention obtains corresponding preset threshold, and monitor by the various service conditions of simulated respiration machine The status data of the air pressure of ventilator outlet side, flow and ventilator blower passes through air pressure, the ventilator wind of analysis outlet side The status data and outlet side gas flow of machine determine that ventilator blower blocks or open wide equal exception feelings with the presence or absence of outlet side Condition, and determine the use state of filter cotton.The use state of abnormal conditions and filter cotton further according to ventilator, executes correspondence Measure is with the machine normal use that ensures respiration.It, can be automatic quasi- merely with ventilator itself component without increasing sensor newly Really identification filter cotton use state and ventilator various abnormal conditions, can not only prompt in time user to filter cotton into Row maintenance, cleaning or replacement.And the currently used ratio of user filtering cotton can be reminded in real time in use, it effectively plays The effect of early warning.Both having reduced causes because checking filter cotton service condition not in time by the bulky grains molecule such as dust, dust The risk for sucking air flue, ensure user using service life that is safe, and improving ventilator blower, moreover it is possible to avoid because too early Waste caused by filter cotton is replaced, use cost is reduced.

Embodiment three

It present embodiments provides in actual treatment, another ventilator control method specifically includes following operating procedure:

Referring to Fig. 3, the ventilator control method flow chart of the offer of the embodiment of the present invention three is given.

Step 301, goal pressure is obtained.

Goal pressure set by the user is obtained, which can be an atmospheric pressure value, or air pressure value Range.

Step 302, the corresponding relationship under different situations between outlet side air pressure, flow and fan condition data is obtained.

The obtained outlet side air pressure of the various situations of simulation, flow and fan condition number are first passed through in advance specifically, obtaining Corresponding relationship between.

Step 303, blower is run.

By running ventilator blower, the gas of flowing is provided to ventilator gas circuit.Gas is sucked from air inlet end, and will Gas is transmitted to outlet side, supply to user along gas circuit.

Step 304, the status data of the air pressure of current ventilator outlet side, flow and ventilator blower is obtained.

Ventilator can be without additional increase sensor, and using the sensor of ventilator itself, acquisition is worked as The status data of the air pressure of preceding ventilator outlet side, flow and ventilator blower.

Step 305, judge whether air pressure is goal pressure.

In order to realize the therapeutic effect of ventilator, need to judge whether the air pressure of outlet side is goal pressure.

If so, the air pressure of i.e. outlet side executes step 315 steadily to goal pressure;

If it is not, the air pressure of i.e. outlet side executes step 306 not yet steadily to goal pressure.

Step 306, judge whether air pressure is more than goal pressure.

Air pressure steadily can not be divided into two kinds of situations to goal pressure, be more than goal pressure one is air pressure, another It is air pressure miss the mark pressure.

If air pressure has been more than goal pressure, show that current gas pressure is excessively high, executes step 307;

If air pressure miss the mark pressure shows that current gas pressure is unable to satisfy user's Treatment need, needs to fan condition Data and outlet side flow make further judgement, execute step 308.

Step 307, rotation speed of fan is reduced.

Specifically, when air pressure is more than goal pressure blower can be run by reducing revolving speed, realizing reduces air pressure.From And air pressure is made to be down to goal pressure.

Step 308, judge status data whether more than the second preset threshold.

Wherein, the second preset threshold is used to characterize air inlet end and uses the filter cotton with the first latus rectum, and outlet side is worn saturating The status data of blower when gas mask.I.e. under ventilator normal operation, the filter cotton of air inlet end is in unused state, out The status data of blower when breathable gas mask is worn at gas end.

If status data is less than the second preset threshold, blower may just bring into operation, and status data is in raised bench Section, therefore temporarily miss the mark pressure, execute step 309.

If status data more than the second preset threshold, executes step 310.

Step 309, rotation speed of fan is improved.

Specifically, can run blower when air pressure miss the mark pressure by improving revolving speed, realize boost air pressure. To make air pressure rise to goal pressure.

Step 310, judge status data whether more than the first preset threshold.

Wherein, the first preset threshold is used to characterize air inlet end and uses the filter cotton with the second latus rectum, and outlet side is worn saturating The status data of blower when gas mask.I.e. under ventilator normal operation, the filter cotton of air inlet end is in use state of exceeding the time limit, The status data of blower when breathable gas mask is worn in outlet side.

If status data is less than the first preset threshold, the air inlet end unit time may be led to since filter cotton latus rectum becomes smaller Enter tolerance deficiency, 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 executes step 309.

If status data more than the first preset threshold, executes step 311.

Step 311, judge whether status data reaches third predetermined threshold value.

Wherein, third predetermined threshold value is used to characterize the default maximum speed limit of ventilator blower.

If status data is not up to third predetermined threshold value, since blower is still in safe work state, to avoid the external world from disturbing Although dynamic cause the status data of ventilator blower more than the first preset threshold, air pressure still miss the mark pressure, or Though filter cotton has been in use state of exceeding the time limit, but still is continuing to use.It can continue to improve status number by executing step 309 According to.

If status data has reached third predetermined threshold value, step 312 is executed.

Step 312, judge whether flow is more than second flow threshold value.

Wherein, second flow threshold value is used to characterize air inlet end and uses the filter cotton with the second latus rectum, when outlet side is opened wide The status data of blower.Although i.e. ventilator filter cotton be in can not state, the air inlet end unit time enter tolerance compared with It is low, but since outlet side is opened wide, the flow of outlet side is higher.

If flow has been more than second flow threshold value, shows that outlet side is opened wide, execute step 313.

If flow is less than second flow threshold value, show due to air inlet end filter cotton Severe blockage, so that the unit time Enter tolerance wretched insufficiency, even if having reached the maximum status data so as to cause status data, but still outlet side gas can not be made Pressure reaches goal pressure, executes step 314.

Step 313, prompt outlet side is opened wide.

Specifically, user's ventilator outlet side can be prompted to open wide by means such as acousto-optics.It needs to wear breathable gas mask.

Step 314, prompting and filtering cotton is in use state of exceeding the time limit.

Specifically, can prompt user's filter cotton that can not continue to use, new filter cotton is needed replacing, or to filter cotton It is maintained.

Step 315, judge status data whether more than the second preset threshold.

In the case where air pressure is goal pressure, judge that status data whether more than the second preset threshold, can be used for sentencing The case where disconnected blocking with the presence or absence of outlet side, if outlet side blocks, when status data is lower, outlet side air pressure can reach To goal pressure.It can be used for judging the use state of filter cotton.

Specifically, if status data thens follow the steps 316 more than the second preset threshold;

If status data is less than the second preset threshold, 319 are thened follow the steps.

Step 316, judge status data whether more than the first preset threshold.

Specifically, that is, fan condition data are in the first preset threshold and if status data is less than the first preset threshold Between two preset thresholds.According to the corresponding relationship of status data and filter cotton use state, it can determine that filter cotton is at this time State in use executes step 317.

If status data is more than the first preset threshold, according to the corresponding relationship of status data and filter cotton use state, It can determine that filter cotton is in use state of exceeding the time limit, execute step 318.

Step 317, it calculates filter cotton use ratio and prompts user.

Specifically, can be according to value position of the current status data between the first preset threshold and the second preset threshold It sets, determines the ratio that filter cotton uses.The relationship of fan condition data and filter cotton use ratio can be it is linear, can also be with It is nonlinear.By taking linear relationship as an example, it is assumed that the second preset threshold be 10000 revs/min, the first preset threshold be 15000 turns/ Point, current status data is 12000 revs/min, then the use ratio that current filter cotton can be calculated is 40%.

Step 318, prompting and filtering cotton is in use state of exceeding the time limit.

Specifically, can prompt user's filter cotton that can not continue to use, new filter cotton is needed replacing, or to filter cotton It is maintained.

Step 319, judge status data whether less than the second preset threshold.

It includes two kinds of situations that status data, which is less than the second preset threshold, and one is status datas less than the second default threshold Value, another kind are that status data is equal to the second preset threshold.

If status data is less than the second preset threshold, and outlet side air pressure at this time has reached goal pressure, it can be determined that Outlet side may block at this time, to further determine that outlet side state, execute step 320.

If status data is equal to the second preset threshold, ventilator filter cotton is likely to be at from unused state in using The stage of state switching.Continue to run blower.

Step 320, judge whether flow is equal to or less than first flow threshold value.

Wherein, first flow threshold value is used to characterize air inlet end and uses the filter cotton with the first latus rectum, when outlet side blocks The status data of blower.Although i.e. ventilator filter cotton is in unused state, the air inlet end unit time to enter tolerance more sufficient, But since outlet side blocks, the flow of outlet side is lower, close to zero.

If flow is equal to or less than first flow threshold value, shows that outlet side blocks, execute step 321.

If flow is greater than first flow threshold value, although the not up to second default threshold may be caused since extraneous factor disturbs Value, but still outlet side air pressure can be made to reach goal pressure.Continue to run blower.

Step 321, prompt outlet side blocking.

Specifically, user's ventilator outlet side can be prompted to open wide by means such as acousto-optics.It needs 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 relationship between air pressure, flow and fan condition data according to the air pressure of current ventilator outlet side, flow and is exhaled The status data of suction machine blower determines that ventilator blower blocks or open wide equal exception with the presence or absence of outlet side by a series of judgements Situation, and determine the use state of filter cotton.The use state of abnormal conditions and filter cotton further according to ventilator, execution pair Measure is answered with the machine normal use that ensures respiration.It, can be automatic merely with ventilator itself component without increasing sensor newly The use state of filter cotton and the various abnormal conditions of ventilator are accurately identified, user can not only be prompted to filter cotton in time It maintained, cleaned or is replaced.And the currently used ratio of user filtering cotton can be reminded in real time in use, effectively rise The effect of early warning is arrived.Both having reduced causes because checking filter cotton service condition not in time by the bulky grains such as dust, dust point Son sucking air flue risk, ensure user using service life that is safe, and improving ventilator blower, moreover it is possible to avoid because of mistake Waste caused by early replacement filter cotton, reduces use cost.

Example IV

On the basis of the above embodiments, the present embodiment additionally provides a kind of ventilator control device, which can answer For ventilator.

Referring to Fig. 4, a kind of structural block diagram of ventilator control device provided in an embodiment of the present invention is given, it specifically can be with Including following module: data acquisition module 401 and condition judgment module 402.

Wherein, data acquisition module 401, for obtaining the air pressure of ventilator outlet side and for characterizing the 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 preset threshold answered compares, and judges the use state of the ventilator filter cotton;Wherein, the preset threshold includes first default At least one in threshold value, the second preset threshold and third predetermined threshold value.

Referring to Fig. 5, another 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 include: replacement prompting submodule 4021, using than Example determines that submodule 4022, blocking determine submodule 4023 and open wide and determines submodule 4024.

Wherein, prompting submodule 4021 is replaced, for being greater than or equal to first preset threshold when the status data When, prompt replacement filter cotton.

Use ratio determines submodule 4022, for determining the filter cotton of the ventilator according to the status data Use ratio.

It blocks and determines submodule 4023, for obtaining the breathing when the status data is less than the second preset threshold The flow of machine determines the gas outlet blocking of the ventilator when the flow is equal to or less than first flow threshold value;Wherein, First preset threshold is greater than second preset threshold.

It opens wide and determines submodule 4024, be less than goal pressure for the air pressure when the outlet side and the status data is big When third predetermined threshold value, the flow of the ventilator is obtained, when the flow is greater than the second flow threshold value, determines institute The gas outlet for stating ventilator is opened wide;Wherein, the third predetermined threshold value is greater than first preset threshold.

Specifically, the replacement prompting submodule 4021, be also used to when the air pressure of the outlet side be less than goal pressure and When the status data is greater than or equal to maximum preset threshold value, the flow of the ventilator is obtained, when the flow is less than or waits When second flow threshold value, replacement filter cotton is prompted.

Optionally, the ventilator control device further include:

Analog module 400, for will have the filter cotton of different latus rectums to match with the different working condition of outlet side, The various service conditions of simulated respiration machine;Under the various service conditions, the corresponding preset threshold is obtained.

To sum up, the embodiment of the present invention obtains the air pressure of ventilator outlet side by data acquisition module 401 and is used for table The status data of ventilator fan operation state is levied, and by condition judgment module 402 when the air pressure of outlet side is goal pressure When, by status data compared with corresponding preset threshold, judge the use state of ventilator filter cotton.Without newly-increased sensing Device, merely with ventilator itself component can it is automatic accurate identification filter cotton use state, and in time prompt user to mistake Filter pulp is maintained, cleaned or is replaced.Both having reduced causes because checking filter cotton service condition not in time by dust, dust etc. Bulky grain molecule suck air flue risk, ensure user using service life that is safe, and improving ventilator blower, moreover it is possible to It avoids reducing use cost because of waste caused by replacing filter cotton too early.

For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple Place illustrates referring to the part of embodiment of the method.

All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.

It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code The form of the computer program product of implementation.

The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram The device of specified function.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram The function of being specified in frame or multiple boxes.

These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart And/or in one or more blocks of the block diagram specify function the step of.

Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.

Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.

Above to a kind of ventilator control method provided by the present invention and device, it is described in detail, answers herein With a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help to manage Solve method and its core concept of the invention;At the same time, for those skilled in the art, according to the thought of the present invention, There will be changes in specific embodiment and application range, in conclusion the content of the present specification should not be construed as to this hair Bright limitation.

Claims (12)

1. a kind of ventilator control method characterized by comprising
Filter cotton with different latus rectums is matched with the different working condition of ventilator outlet side, simulated respiration machine is various Service condition;Under the various service conditions, corresponding preset threshold is obtained;
Obtain the air pressure of the ventilator outlet side and the status data for characterizing the ventilator fan operation state;
When the air pressure of the outlet side is goal pressure, by the status data compared with the corresponding preset threshold, sentence Break the use state of the ventilator filter cotton;
Wherein, the preset threshold includes at least one in the first preset threshold, the second preset threshold and third predetermined threshold value;
Wherein, described when the air pressure of the outlet side is goal pressure, by the status data and the corresponding default threshold The step of value compares, and judges the use state of the ventilator filter cotton include:
When the status data is less than the second preset threshold, the flow of the ventilator is obtained, when the flow is equal to or small When first flow threshold value, the gas outlet blocking of the ventilator is determined;
Wherein, first preset threshold is greater than second preset threshold.
2. the method according to claim 1, wherein it is described when the air pressure of the outlet side be goal pressure when, By the status data compared with the corresponding preset threshold, the step of judging the use state of the ventilator filter cotton packet It includes:
When the status data is greater than or equal to first preset threshold, replacement filter cotton is prompted.
3. the method according to claim 1, wherein it is described when the air pressure of the outlet side be goal pressure when, By the status data compared with the corresponding preset threshold, the step of judging the use state of the ventilator filter cotton packet It includes:
According to the status data, the use ratio of the filter cotton of the ventilator is determined.
4. the method according to claim 1, wherein the method also includes:
When the air pressure of the outlet side is less than goal pressure and the status data is greater than or equal to third predetermined threshold value, obtain The flow of the ventilator prompts replacement filter cotton when the flow is less than or equal to second flow threshold value.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
When the air pressure of the outlet side is less than goal pressure and the status data is greater than third predetermined threshold value, exhaled described in acquisition The flow of suction machine determines that the gas outlet of the ventilator is opened wide when the flow is greater than the second flow threshold value;
Wherein, the third predetermined threshold value is greater than first preset threshold.
6. method according to any one of claims 1 to 5, which is characterized in that
The status data includes the revolving speed of blower and/or the electric current of blower.
7. a kind of ventilator control device characterized by comprising
Analog module, for will have the filter cotton of different latus rectums and the different working condition of ventilator outlet side to match, The various service conditions of simulated respiration machine;Under the various service conditions, corresponding preset threshold is obtained;
Data acquisition module, for obtaining the air pressure of the ventilator outlet side and for characterizing the 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 and corresponding institute It states preset threshold to compare, judges the use state of the ventilator filter cotton;Wherein, the preset threshold includes the first default threshold At least one in value, the second preset threshold and third predetermined threshold value;
Wherein, the condition judgment module further includes blocking determining submodule, for presetting when the status data less than second When threshold value, the flow of the ventilator is obtained, when the flow is equal to or less than first flow threshold value, determines the ventilator Gas outlet blocking;Wherein, first preset threshold is greater than second preset threshold.
8. device according to claim 7, which is characterized in that the condition judgment module, comprising:
Prompting submodule is replaced, for prompting to replace when the status data is greater than or equal to first preset threshold Filter pulp.
9. device according to claim 7, which is characterized in that the condition judgment module, further includes:
Use ratio determines submodule, for determining the use ratio of the filter cotton of the ventilator according to the status data.
10. device according to claim 8, which is characterized in that
The replacement prompting submodule is also used to be less than goal pressure when the air pressure of the outlet side and the status data is greater than Or when being equal to third predetermined threshold value, the flow of the ventilator is obtained, when the flow is less than or equal to second flow threshold value, Prompt replacement filter cotton.
11. device according to claim 7, which is characterized in that the condition judgment module, further includes:
It opens wide and determines submodule, be less than goal pressure for the air pressure when the outlet side and the status data is pre- greater than third If when threshold value, obtaining the flow of the ventilator, when the flow is greater than second flow threshold value, going out for the ventilator is determined Port opens wide;Wherein, the third predetermined threshold value is greater than first preset threshold.
12. according to the described in any item devices of claim 7 to 11, which is characterized in that
The status data includes the revolving speed of blower and/or the electric current of blower.
CN201611248740.2A 2016-12-29 2016-12-29 A kind of ventilator control method and device CN106620979B (en)

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US6035851A (en) * 1996-10-03 2000-03-14 Siemens-Elema Ab Method and device for monitoring the condition of a filter in a ventilator
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