CN105457135B - Ventilator pressure method of adjustment, device and ventilator - Google Patents
Ventilator pressure method of adjustment, device and ventilator Download PDFInfo
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- CN105457135B CN105457135B CN201511003378.8A CN201511003378A CN105457135B CN 105457135 B CN105457135 B CN 105457135B CN 201511003378 A CN201511003378 A CN 201511003378A CN 105457135 B CN105457135 B CN 105457135B
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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
- A61M16/0057—Pumps therefor
- A61M16/0066—Blowers or centrifugal pumps
- A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
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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
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1025—Respiratory system
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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
- A61M2230/00—Measuring parameters of the user
- A61M2230/005—Parameter used as control input for the apparatus
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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
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
Abstract
The invention discloses a kind of ventilator pressure methods of adjustment, this method comprises: acquiring the minute ventilation of preset times in user's breathing, construct once linear equation according to the minute ventilation；Judge the size of the Monomial coefficient of the once linear equation, and/or the slope and the relationship of default slope range of the comparison once linear equation；According to the comparing result of the slope of the judging result of the size of the Monomial coefficient and/or the once linear equation and the relationship of default slope range, inspiration positive air is adjusted.The invention also discloses a kind of ventilator pressure regulation device and ventilators.The present invention can be realized ventilator automatic adjusument pressure of inspiration(Pi), and the accuracy for the practical ventilatory capacity that ventilator is exported can be improved, to reduce the error between practical ventilatory capacity and the target ventilating volumn of setting.Ventilator of the invention is capable of providing ventilatory capacity needed for meeting treatment, can satisfy disease human needs, to reach optimal curative effect.
Description
Technical field
The present invention relates to field of medical technology more particularly to a kind of ventilator pressure methods of adjustment, device and ventilator.
Background technique
Currently, using noninvasive ventilation treatment COPD (chronic obstructive pulmonary disease, slowly
Property obstructive disease of lung) illness when, rely primarily on noninvasive ventilator and sufficient pressure support ventilation be provided, to guarantee that patient obtains foot
One emphasis of enough ventilatory capacities, invasive ventilation intervention COPD treatment is to ensure that patient obtains enough ventilatory capacities, and ventilatory capacity
Demand size be to vary with each individual, and during the entire course for the treatment of, due to the influence of the physical condition and local environment of patient, need
The pressure support ventilation wanted is not necessarily unalterable, but needs to carry out a degree of adjustment at any time.Traditional ventilator
When being treated, the exhaled positive pressure EPAP and inspiration positive air IPAP of setting are only provided, if the insufficient pressure of setting, patient is just
It is unable to get enough ventilatory capacities, doctor may require that by titrating the pressure value that can just obtain being most suitable for patient for several times, and
In therapeutic process, if the state of patient is changed, the demand to pressure support ventilation can also change, and ventilator is still pressed at this time
According to the pressure operation of setting, the practical ventilatory capacity of ventilator output can not carry out automatic adjusument, and accuracy is poor, cause practical logical
Error between tolerance and the target ventilating volumn of setting is larger, therefore existing ventilator is unable to satisfy disease human needs, thus nothing
Method reaches optimal curative effect.
Summary of the invention
The main purpose of the present invention is to provide a kind of ventilator pressure method of adjustment, device and ventilators, can be adaptive
Pressure of inspiration(Pi) should be adjusted, to improve the accuracy for the practical ventilatory capacity that ventilator is exported, to reduce practical ventilatory capacity and set
Error between fixed target ventilating volumn.
To achieve the above object, the present invention provides a kind of ventilator pressure method of adjustment, ventilator pressure adjustment side
Method includes the following steps:
The minute ventilation that preset times are acquired in user's breathing, constructs once linear side according to the minute ventilation
Journey；
Judge the positive and negative of the Monomial coefficient of the once linear equation, and/or compares the oblique of the once linear equation
The relationship of rate and default slope range；
According to the slope of the positive and negative judging result of the Monomial coefficient and/or the once linear equation and preset
The comparing result of the relationship of slope range adjusts inspiration positive air, so that the practical ventilatory capacity of user and the target ventilating volumn of setting
Gap in preset error range.
Preferably, the minute ventilation that preset times are acquired in user's breathing, according to the minute ventilation structure
The step of building once linear equation include:
The tidal volume that user's breathing is calculated in user's breathing, according to the time that the tidal volume and user breathe, estimation
The respiratory rate of user；
The minute ventilation of user is calculated according to the respiratory rate of the tidal volume of user's breathing and user；
The minute ventilation for acquiring preset times constructs once linear equation according to the minute ventilation, described primary
Linear equation is used to adjust inspiration positive air according to the real-time ventilatory capacity of user.
Preferably, the positive and negative judging result according to the Monomial coefficient and/or the once linear equation
The comparing result of the relationship of slope and default slope range, the step of adjusting inspiration positive air include:
If the Monomial coefficient of the once linear equation is positive, and the slope of the once linear equation is oblique greater than default
The upper limit value of rate range then reduces inspiration positive air when the real-time ventilatory capacity of user is more than the target ventilating volumn of setting；
If the Monomial coefficient of the once linear equation is negative, and the slope of the once linear equation is oblique less than default
The lower limit value of rate range then increases inspiration positive air when the real-time ventilatory capacity of user is less than the target ventilating volumn of setting；
If the slope of the once linear equation is in default slope range, according to the real-time ventilatory capacity of user and setting
Target ventilating volumn size relation, reduce or/increase inspiration positive air.
Preferably, when reducing inspiration positive air, stop declining the suction when inspiration positive air reaches preset exhaled positive pressure
Gas positive pressure；When increasing inspiration positive air, stop increasing the air-breathing when inspiration positive air reaches preset inspiration positive air upper limit value
Positive pressure.
Preferably, the minute ventilation that preset times are acquired in user's breathing, according to the minute ventilation structure
It builds before once linear equation, the ventilator pressure method of adjustment further comprises the steps of:
The target ventilating volumn of user's breathing is set.
To achieve the above object, the present invention also provides a kind of ventilator pressure regulation device, the ventilator pressure adjustment
Device includes:
Module is constructed, for acquiring the minute ventilation of preset times when user breathes, according to the minute ventilation
Construct once linear equation；
Judgement or contrast module, for judge the once linear equation Monomial coefficient it is positive and negative, and/or comparison institute
State the slope of once linear equation and the relationship of default slope range；
Adjust module, for according to the Monomial coefficient positive and negative judging result and/or the once linear equation
Slope and default slope range relationship comparing result, adjust inspiration positive air so that the practical ventilatory capacity of user and setting
Target ventilating volumn gap in preset error range.
Preferably, the building module is specifically used for:
The tidal volume that user's breathing is calculated in user's breathing, according to the time that the tidal volume and user breathe, estimation
The respiratory rate of user；
The minute ventilation of user is calculated according to the respiratory rate of the tidal volume of user's breathing and user；
The minute ventilation for acquiring preset times constructs once linear equation according to the minute ventilation, described primary
Linear equation is used to adjust inspiration positive air according to the real-time ventilatory capacity of user.
Preferably, the adjustment module is specifically used for:
If the Monomial coefficient of the once linear equation is positive, and the slope of the once linear equation is oblique greater than default
The upper limit value of rate range then reduces inspiration positive air when the real-time ventilatory capacity of user is more than the target ventilating volumn of setting；
If the Monomial coefficient of the once linear equation is negative, and the slope of the once linear equation is oblique less than default
The lower limit value of rate range then increases inspiration positive air when the real-time ventilatory capacity of user is less than the target ventilating volumn of setting；
If the slope of the once linear equation is in default slope range, according to the real-time ventilatory capacity of user and setting
Target ventilating volumn size relation, reduce or/increase inspiration positive air.
Preferably, the ventilator pressure regulation device further include:
Setup module, for the target ventilating volumn of user's breathing to be arranged.
In addition, the ventilator includes above-mentioned ventilator pressure regulation device the present invention also provides a kind of ventilator.
The present invention is constructed by the minute ventilation of the acquisition preset times when user breathes according to the minute ventilation
Once linear equation；Judge the positive and negative of the Monomial coefficient of the once linear equation, and/or the comparison once linear equation
Slope and default slope range relationship；According to judging result and/or comparing result, inspiration positive air is adjusted, so that user
The gap of practical ventilatory capacity and the target ventilating volumn of setting realizes ventilator automatic adjusument air-breathing in preset error range
Pressure, can be improved the accuracy for the practical ventilatory capacity that ventilator is exported, so that the target for reducing practical ventilatory capacity and setting is logical
Error between tolerance.It is capable of the ventilator of automatic adjusument pressure of inspiration(Pi) using the present invention, is capable of providing needed for meeting treatment
Ventilatory capacity, can satisfy disease human needs, to reach optimal curative effect.
Detailed description of the invention
Fig. 1 is the flow diagram of ventilator pressure method of adjustment first embodiment of the present invention；
Fig. 2 is the refinement flow diagram of step S10 in Fig. 1；
Fig. 3 is the flow diagram of ventilator pressure method of adjustment second embodiment of the present invention；
Fig. 4 is the functional block diagram of ventilator pressure regulation device first embodiment of the present invention；
Fig. 5 is the functional block diagram of ventilator pressure regulation device second embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of ventilator pressure method of adjustment.
Referring to Fig.1, Fig. 1 is the flow diagram of ventilator pressure method of adjustment first embodiment of the present invention.
In one embodiment of the invention, ventilator pressure method of adjustment includes:
Step S10 acquires the minute ventilation of preset times in user's breathing, according to minute ventilation building one
Sublinear equation；
Step S20 judges the positive and negative of the Monomial coefficient of the once linear equation, and/or the comparison once linear
The relationship of the slope of equation and default slope range；
Step S30, according to the oblique of the positive and negative judging result of the Monomial coefficient and/or the once linear equation
The comparing result of the relationship of rate and default slope range, adjusts inspiration positive air, so that the practical ventilatory capacity of user and the mesh of setting
The gap of ventilatory capacity is marked in preset error range.
In the present embodiment method, in user's breathing, first, in accordance with preset times of collection, point of the preset times is acquired
Clock ventilatory capacity, such as default times of collection are 10 times, then 10 minute ventilations are acquired after user's breathing, then basis is adopted
The minute ventilation of the preset times collected constructs once linear equation.
According to constructed once linear equation, the positive and negative of the Monomial coefficient of the once linear equation, this implementation are judged
Example is by taking the expression formula of above-mentioned once linear equation as an example, that is to say, that the value for judging Monomial coefficient is positive number or negative；Together
When compare the slope of the once linear equation and the relationship of default slope range, the present embodiment is provided with this according to the actual situation
The upper limit value and lower limit value of default slope range, compare the slope of the once linear equation and the relationship one of default slope range
The slope of sublinear equation judges the slope of the once linear equation and the upper limit value of default slope range and lower limit value
Size relation, so that it is determined that the range where the slope of once linear equation.
When it is positive number or negative that the Monomial coefficient, which has been determined, and/or judge the oblique of the once linear equation
It, can be according to judging result, and practical ventilatory capacity after the size relation of the upper limit value and lower limit value of rate and default slope range
Inspiration positive air is adjusted with the size relation of the target ventilating volumn of setting, so that the practical ventilatory capacity of user and the target ventilation of setting
The gap of amount is in preset error range；The target ventilating volumn set is the actual conditions according to patient preset one
The error range of the target ventilating volumn of a reasonable value, the permitted practical ventilatory capacity of the present embodiment and setting is | practical ventilation
Amount-target ventilating volumn | < 0.5LPM, that is to say, that the purpose for adjusting inspiration positive air is ensuring that the mesh of practical ventilatory capacity and setting
Mark the gap of ventilatory capacity in the range.
The present embodiment by when user breathes acquire preset times minute ventilation, according to the minute ventilation structure
Build once linear equation；Judge the positive and negative of the Monomial coefficient of the once linear equation, and/or the comparison once linear side
The relationship of the slope of journey and default slope range；According to judging result and/or comparing result, inspiration positive air is adjusted, so that user
Practical ventilatory capacity and setting target ventilating volumn gap in preset error range, realize ventilator automatic adjusument inhale
Atmospheric pressure, can be improved the accuracy for the practical ventilatory capacity that ventilator is exported, to reduce the target of practical ventilatory capacity and setting
Error between ventilatory capacity.
It is the refinement flow diagram of step S10 in Fig. 1 referring to Fig. 2, Fig. 2.
In the above-described embodiments, step S10 is specifically included:
Step S11 calculates the tidal volume of user's breathing in user's breathing, according to the tidal volume and user breathe when
Between, estimate the respiratory rate of user；
Step S12 calculates the minute ventilation of user according to the respiratory rate of the tidal volume of user's breathing and user；
Step S13 acquires the minute ventilation of preset times, constructs once linear equation according to the minute ventilation,
The once linear equation is used to adjust inspiration positive air according to the real-time ventilatory capacity of user.
In user's breathing, the tidal volume of user's breathing is calculated by algorithm, and according to used in this breathing of user
Time and calculated tidal volume, estimate the respiratory rate of user；Then, according to the tidal volume of user's breathing and user
Respiratory rate calculates the minute ventilation of user, and it is logical to calculate the minute of user that formula MV=VT*BPM can be used in the present embodiment
Tolerance, wherein MV is minute ventilation, and VT is the tidal volume of user's breathing, and BPM is the respiratory rate of user.It is logical to calculate minute
After tolerance, according to preset preset times, such as 10 times, the minute ventilation of the preset times is acquired, according to described point
Clock ventilatory capacity constructs once linear equation, which is used to adjust inspiration positive air according to the real-time ventilatory capacity of user,
To guarantee the gap of the practical ventilatory capacity of user and the target ventilating volumn of setting in preset error range；Preferably, this one
Sublinear equation can be expressed as y=ax+b, wherein
X represents the time, and y represents current minute ventilation, and N represents total amount of data；Certainly, the once linear equation of building
It can be other forms, coefficient can also be other values.
In the above-described embodiments, step S30 is specifically included:
If the Monomial coefficient of the once linear equation is positive, and the slope of the once linear equation is oblique greater than default
The upper limit value of rate range then reduces inspiration positive air when the real-time ventilatory capacity of user is more than the target ventilating volumn of setting；
The Monomial coefficient of once linear equation is positive as described in judging, i.e. a is positive number, and once linear equation is oblique
Rate is greater than the upper limit value of default slope range, and the slope range is [tan (- p1/6), tan (p1/6)] in the present embodiment, also
It is to say, when a is positive number, and the slope of the once linear equation is greater than tan (p1/6), illustrates the logical real-time ventilatory capacity of user
The rising stage is handled, at this point, further judging whether the real-time ventilatory capacity reaches target ventilating volumn, does not reach such as, then continues to
Current inspiration positive air, and when the real-time ventilatory capacity of user is more than target ventilating volumn, then inspiration positive air is reduced after each breathing,
Preferably, the amplitude for reducing inspiration positive air every time can be between 0.1cmH20~1cmH20, and the present embodiment preferably reduces every time
The amplitude of inspiration positive air is 0.1cmH20.
If the Monomial coefficient of the once linear equation is negative, and the slope of the once linear equation is oblique less than default
The lower limit value of rate range then increases inspiration positive air when the real-time ventilatory capacity of user is less than the target ventilating volumn of setting；
The Monomial coefficient of once linear equation is negative as described in judging, i.e. a is negative, and once linear equation is oblique
Rate is less than the lower limit value of default slope range, that is to say, that when a is negative, and the slope of the once linear equation is less than tan
When (- p1/6), illustrate the logical real-time ventilatory capacity processing decline phase of user, at this point, further judging whether the real-time ventilatory capacity is low
It in target ventilating volumn, is such as not below, then continues to current inspiration positive air, and when the real-time ventilatory capacity of user is lower than target ventilation
When amount, then increase inspiration positive air after each breathing, it is preferable that increase every time inspiration positive air amplitude can 0.1cmH20~
Between 1cmH20, the amplitude that the present embodiment preferably increases inspiration positive air every time is 0.1cmH20.
If the slope of the once linear equation is in default slope range, according to the real-time ventilatory capacity of user and setting
Target ventilating volumn size relation, reduce or/increase inspiration positive air.
The slope of once linear equation is such as judged in preset slope range, and the once linear equation is primary
Term coefficient be it is positive or negative, the present embodiment preferably Monomial coefficient is positive, i.e. a be positive number, that is to say, that when the once linear
When the slope of equation is in [tan (- p1/6), tan (p1/6)] range, illustrate that the ventilatory capacity of user is stablized, at this point, further sentencing
Break the size relation of the real-time ventilatory capacity and target ventilating volumn, i.e., when real-time ventilatory capacity is in the range of target ventilating volumn, dimension
Hold current inspiration positive air；When real-time ventilatory capacity is lower than target ventilating volumn, then increase inspiration positive air after each breathing；When real-time
When ventilatory capacity is more than target ventilating volumn, then inspiration positive air is reduced after each breathing, it is preferable that each increase or decline air-breathing are just
The amplitude of pressure can be between 0.1cmH20~1cmH20, and the amplitude that the present embodiment preferably increases or decline every time inspiration positive air is
0.1cmH20。
The present embodiment be should be noted that when reducing inspiration positive air, when inspiration positive air reaches preset exhaled positive pressure
Stop declining the inspiration positive air；When increasing inspiration positive air, stop when inspiration positive air reaches preset inspiration positive air upper limit value
Only increase the inspiration positive air.
It is the flow diagram of ventilator pressure method of adjustment second embodiment of the present invention referring to Fig. 3, Fig. 3.
Based on ventilator pressure method of adjustment first embodiment of the present invention, propose that second embodiment, the second embodiment exist
Before execution above-mentioned steps S10, further includes:
Step S40, the target ventilating volumn that setting user breathes.
By before the corresponding illness of respirator treatment, by operator or doctor according to the parameter of ventilator, and it is each
A target ventilating volumn is arranged in the practical conditions and physical condition of different user, which is a range, can be made
For the reference standard value of ventilatory capacity practical in treatment, that is to say, that practical ventilatory capacity is kept in the range in treatment, when
When practical ventilatory capacity is lower than or is more than the target ventilating volumn, adjustment inspiration positive air is required.It is arranged for different user corresponding
Target ventilating volumn, with reference pair over the course for the treatment of photograph, thus for ventilator can automatic adjusument treat pressure, meet patient
Needs, reach optimal curative effect and provide the foundation.
It is the functional block diagram of ventilator pressure regulation device first embodiment of the present invention referring to Fig. 4, Fig. 4.
In one embodiment, ventilator pressure regulation device of the present invention includes:
Module 10 is constructed, for acquiring the minute ventilation of preset times when user breathes, is ventilated according to the minute
Amount building once linear equation；
Judgement or contrast module 20, for judge the once linear equation Monomial coefficient it is positive and negative, and/or comparison
The slope of the once linear equation and the relationship of default slope range；
Adjust module 30, for according to the Monomial coefficient positive and negative judging result and/or the once linear side
The comparing result of the relationship of the slope of journey and default slope range adjusts inspiration positive air so that the practical ventilatory capacity of user with set
The gap of fixed target ventilating volumn is in preset error range.
In the ventilator pressure regulation device of the present embodiment, building module 10 is when user breathes, first, in accordance with preset
Times of collection acquires the minute ventilation of the preset times, such as default times of collection is 10 times, then acquires after user's breathing
Then 10 minute ventilations construct once linear equation according to the minute ventilation of collected preset times.
Judgement or contrast module 20 judge a term system of the once linear equation according to constructed once linear equation
Several is positive and negative, and the present embodiment is by taking the expression formula of above-mentioned once linear equation as an example, that is to say, that judging the value of Monomial coefficient is
Positive number or negative；Compare the slope of the once linear equation and the relationship of default slope range simultaneously, the present embodiment according to
Actual conditions are provided with the upper limit value and lower limit value of the default slope range, compare the slope of the once linear equation and preset
The slope of the relationship once linear equation of slope range, that is, judge the once linear equation slope and default slope range
The size relation of upper limit value and lower limit value, so that it is determined that the range where the slope of once linear equation.
When it is positive number or negative that the Monomial coefficient, which has been determined, and/or judge the oblique of the once linear equation
After the upper limit value of rate and default slope range and the size relation of lower limit value, adjustment module 30 can according to judging result, and
The size relation of practical ventilatory capacity and the target ventilating volumn of setting adjusts inspiration positive air, so that the practical ventilatory capacity of user and setting
Target ventilating volumn gap in preset error range；The target ventilating volumn set is pre- according to the actual conditions of patient
The error range of the target ventilating volumn of the reasonable value of one first set, the permitted practical ventilatory capacity of the present embodiment and setting is
| practical ventilatory capacity-target ventilating volumn | < 0.5LPM, that is to say, that the purpose for adjusting inspiration positive air is ensuring that practical ventilatory capacity
In the range with the gap of the target ventilating volumn of setting.
The ventilator pressure regulation device of the present embodiment, the minute by acquiring preset times when user breathes ventilate
Amount constructs once linear equation according to the minute ventilation；Judge the positive and negative of the Monomial coefficient of the once linear equation,
And/or the slope and the relationship of default slope range of the comparison once linear equation；According to judging result and/or comparison knot
Fruit adjusts inspiration positive air, so that the gap of the target ventilating volumn of the practical ventilatory capacity and setting of user is in preset error range
It is interior, ventilator automatic adjusument pressure of inspiration(Pi) may be implemented, the accuracy for the practical ventilatory capacity that ventilator is exported can be improved, from
And reduce the error between practical ventilatory capacity and the target ventilating volumn of setting.
In the above-described embodiments, building module 10 is specifically used for:
The tidal volume that user's breathing is calculated in user's breathing, according to the time that the tidal volume and user breathe, estimation
The respiratory rate of user；
The minute ventilation of user is calculated according to the respiratory rate of the tidal volume of user's breathing and user；
The minute ventilation for acquiring preset times constructs once linear equation according to the minute ventilation, described primary
Linear equation is used to adjust inspiration positive air according to the real-time ventilatory capacity of user.
In user's breathing, the tidal volume of user's breathing is calculated by algorithm, and according to used in this breathing of user
Time and calculated tidal volume, estimate the respiratory rate of user；Then, according to the tidal volume of user's breathing and user
Respiratory rate calculates the minute ventilation of user, and it is logical to calculate the minute of user that formula MV=VT*BPM can be used in the present embodiment
Tolerance, wherein MV is minute ventilation, and VT is the tidal volume of user's breathing, and BPM is the respiratory rate of user.It is logical to calculate minute
After tolerance, according to preset preset times, such as 10 times, the minute ventilation of the preset times is acquired, according to described point
Clock ventilatory capacity constructs once linear equation, which is used to adjust inspiration positive air according to the real-time ventilatory capacity of user,
To guarantee the gap of the practical ventilatory capacity of user and the target ventilating volumn of setting in preset error range；Preferably, this one
Sublinear equation can be expressed as y=ax+b, wherein
X represents the time, and y represents current minute ventilation, and N represents total amount of data；Certainly, the once linear equation of building
It can be other forms, coefficient can also be other values.
In the above-described embodiments, adjustment module 30 is specifically used for:
If the Monomial coefficient of the once linear equation is positive, and the slope of the once linear equation is oblique greater than default
The upper limit value of rate range then reduces inspiration positive air when the real-time ventilatory capacity of user is more than the target ventilating volumn of setting；
The Monomial coefficient of once linear equation is positive as described in judging, i.e. a is positive number, and once linear equation is oblique
Rate is greater than the upper limit value of default slope range, and the slope range is [tan (- p1/6), tan (p1/6)] in the present embodiment, also
It is to say, when a is positive number, and the slope of the once linear equation is greater than tan (p1/6), illustrates the logical real-time ventilatory capacity of user
The rising stage is handled, at this point, further judging whether the real-time ventilatory capacity reaches target ventilating volumn, does not reach such as, then continues to
Current inspiration positive air, and when the real-time ventilatory capacity of user is more than target ventilating volumn, then it adjusts module 30 and is dropped after each breathing
Low inspiration positive air, it is preferable that the amplitude for reducing inspiration positive air every time can be between 0.1cmH20~1cmH20, and the present embodiment is excellent
The amplitude that choosing reduces inspiration positive air every time is 0.1cmH20.
If the Monomial coefficient of the once linear equation is negative, and the slope of the once linear equation is oblique less than default
The lower limit value of rate range then increases inspiration positive air when the real-time ventilatory capacity of user is less than the target ventilating volumn of setting；
The Monomial coefficient of once linear equation is negative as described in judging, i.e. a is negative, and once linear equation is oblique
Rate is less than the lower limit value of default slope range, that is to say, that when a is negative, and the slope of the once linear equation is less than tan
When (- p1/6), illustrate the logical real-time ventilatory capacity processing decline phase of user, at this point, further judging whether the real-time ventilatory capacity is low
It in target ventilating volumn, is such as not below, then continues to current inspiration positive air, and when the real-time ventilatory capacity of user is lower than target ventilation
It when amount, then adjusts module 30 and increases inspiration positive air after each breathing, it is preferable that the amplitude for increasing inspiration positive air every time can be
Between 0.1cmH20~1cmH20, the amplitude that the present embodiment preferably increases inspiration positive air every time is 0.1cmH20.
If the slope of the once linear equation is in default slope range, according to the real-time ventilatory capacity of user and setting
Target ventilating volumn size relation, reduce or/increase inspiration positive air.
The slope of once linear equation is such as judged in preset slope range, and the once linear equation is primary
Term coefficient be it is positive or negative, the present embodiment preferably Monomial coefficient is positive, i.e. a be positive number, that is to say, that when the once linear
When the slope of equation is in [tan (- p1/6), tan (p1/6)] range, illustrate that the ventilatory capacity of user is stablized, at this point, further sentencing
Break the size relation of the real-time ventilatory capacity and target ventilating volumn, i.e., when real-time ventilatory capacity is in the range of target ventilating volumn, dimension
Hold current inspiration positive air；When real-time ventilatory capacity is lower than target ventilating volumn, then adjusts module 30 and increase air-breathing after each breathing
Positive pressure；When real-time ventilatory capacity is more than target ventilating volumn, then adjusting module 30 reduces inspiration positive air after each breathing, preferably
Ground, increases every time or the amplitude of decline inspiration positive air can be between 0.1cmH20~1cmH20, and the present embodiment preferably increases every time
The amplitude for adding or declining inspiration positive air is 0.1cmH20.
The present embodiment be should be noted that when reducing inspiration positive air, when inspiration positive air reaches preset exhaled positive pressure
Stop declining the inspiration positive air；When increasing inspiration positive air, stop when inspiration positive air reaches preset inspiration positive air upper limit value
Only increase the inspiration positive air.
It is the functional block diagram of ventilator pressure regulation device second embodiment of the present invention referring to Fig. 5, Fig. 5.
Based on aforementioned present invention ventilator pressure regulation device first embodiment, second embodiment is proposed, second implementation
Example is not both with first embodiment, on the basis of first embodiment, ventilator pressure regulation device further include:
Setup module 40, for the target ventilating volumn of user's breathing to be arranged.
By before the corresponding illness of respirator treatment, by operator or doctor according to the parameter of ventilator, and it is each
A target ventilating volumn, the target ventilating volumn is arranged by setup module 40 in the practical conditions and physical condition of different user
It is a range, can be used as the reference standard value of the practical ventilatory capacity in treatment, that is to say, that keeps practical ventilation in treatment
Amount in the range, when practical ventilatory capacity is lower than or is more than the target ventilating volumn, requires adjustment inspiration positive air.For difference
The corresponding target ventilating volumn of user setting, with reference pair over the course for the treatment of photograph, thus for ventilator can automatic adjusument control
Pressure is treated, meets sick human needs, reaches optimal curative effect and provide the foundation.
In addition, the ventilator includes above-mentioned ventilator pressure regulation device, this is exhaled the present invention also provides a kind of ventilator
Suction machine pressure regulation device please refers to the whole technical solutions and technical effect of above-mentioned Fig. 4, Fig. 5 whole embodiments, herein not
It repeats.
Using this ventilator for capableing of automatic adjusument pressure of inspiration(Pi) of the present invention, it is capable of providing logical needed for meeting treatment
Tolerance can satisfy disease human needs, to reach optimal curative effect, can be used for treating COPD illness, such as acquires identical ginseng
Number, it can also be used to which other treatment device is to treat other illnesss.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of ventilator pressure regulation device, which is characterized in that the ventilator pressure regulation device includes:
Module is constructed, for acquiring the minute ventilation of preset times when user breathes, is constructed according to the minute ventilation
Once linear equation；
Judgement or contrast module, for judge the once linear equation Monomial coefficient it is positive and negative, and/or comparison described one
The relationship of the slope of sublinear equation and default slope range；
Module is adjusted, for according to the oblique of the positive and negative judging result of the Monomial coefficient and/or the once linear equation
The comparing result of the relationship of rate and default slope range, adjusts inspiration positive air, so that the practical ventilatory capacity of user and the mesh of setting
The gap of ventilatory capacity is marked in preset error range；
The adjustment module is specifically used for:
If the Monomial coefficient of the once linear equation is positive, and the slope of the once linear equation is greater than default slope model
The upper limit value enclosed then reduces inspiration positive air when the real-time ventilatory capacity of user is more than the target ventilating volumn of setting；
If the Monomial coefficient of the once linear equation is negative, and the slope of the once linear equation is less than default slope model
The lower limit value enclosed then increases inspiration positive air when the real-time ventilatory capacity of user is less than the target ventilating volumn of setting；
If the slope of the once linear equation is in default slope range, according to the real-time ventilatory capacity of user and the mesh of setting
The size relation of ventilatory capacity is marked, inspiration positive air is reduced or increase.
2. ventilator pressure regulation device according to claim 1, which is characterized in that the building module is specifically used for:
The tidal volume that user's breathing is calculated in user's breathing estimates user according to the time that the tidal volume and user breathe
Respiratory rate；
The minute ventilation of user is calculated according to the respiratory rate of the tidal volume of user's breathing and user；
The minute ventilation for acquiring preset times constructs once linear equation, the once linear according to the minute ventilation
Equation is used to adjust inspiration positive air according to the real-time ventilatory capacity of user.
3. ventilator pressure regulation device according to claim 1, which is characterized in that the adjustment module reduces suction every time
The amplitude of gas positive pressure is between 0.1cmH2O~1cmH2O.
4. ventilator pressure regulation device according to claim 1, which is characterized in that the adjustment module increases suction every time
The amplitude of gas positive pressure is between 0.1cmH20~1cmH20.
5. ventilator pressure regulation device according to claim 1, which is characterized in that institute constructed by the building module
It states once linear equation and is expressed as y=ax+b, wherein
X represents the time, and y represents current minute ventilation, and N represents total amount of data.
6. ventilator pressure regulation device according to claim 1, which is characterized in that the ventilator pressure regulation device
Further include:
Setup module, for the target ventilating volumn of user's breathing to be arranged.
7. a kind of ventilator, which is characterized in that the ventilator includes such as ventilator pressure as claimed in any one of claims 1 to 6
Force adjusting device.
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| CN201511003378.8A CN105457135B (en) | 2015-12-28 | 2015-12-28 | Ventilator pressure method of adjustment, device and ventilator |
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| CN106975134B (en) * | 2017-04-11 | 2019-10-01 | 湖南明康中锦医疗科技发展有限公司 | Method and device for adjusting replacement point of respirator and noninvasive respirator |
| CN108283750B (en) * | 2017-12-15 | 2020-08-28 | 湖南明康中锦医疗科技发展有限公司 | Rapid pressure increasing and decreasing method and system for breathing machine |
| CN114440413A (en) * | 2020-10-30 | 2022-05-06 | 青岛海信电子产业控股股份有限公司 | Indoor air conditioning method and equipment |
| CN113952566B (en) * | 2021-10-22 | 2024-04-09 | 广西开蒙医疗科技有限公司 | Breathing machine pressure control method, system, terminal and storage medium |
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