CN106267494B - Ventilator parameter method of adjustment and ventilator based on inspiratory effort degree - Google Patents
Ventilator parameter method of adjustment and ventilator based on inspiratory effort degree Download PDFInfo
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- CN106267494B CN106267494B CN201610784910.2A CN201610784910A CN106267494B CN 106267494 B CN106267494 B CN 106267494B CN 201610784910 A CN201610784910 A CN 201610784910A CN 106267494 B CN106267494 B CN 106267494B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3327—Measuring
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2230/00—Measuring parameters of the user
- A61M2230/005—Parameter used as control input for the apparatus
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Abstract
The present invention relates to a kind of ventilator parameter method of adjustment and ventilator based on inspiratory effort degree, the ventilator parameter method of adjustment based on inspiratory effort degree includes: the inspiratory flow change rate for calculating user and starting the air-breathing moment to ventilator triggering moment；Calculate the pressure of inspiration(Pi) change rate that user starts the air-breathing moment to ventilator triggering moment；The change rate summation for obtaining the inspiratory flow change rate and the pressure of inspiration(Pi) change rate, according to inspiratory effort grade locating for change rate summation described in preset flow rate pressure change rate and the division Relation acquisition of inspiratory effort grade；The parameter of the ventilator is adjusted according to inspiratory effort grade locating for the change rate summation.The present invention can be compared with accurately obtaining the current inspiratory effort degree of user, and can realize and accurately be adjusted to the parameter of ventilator, improves the user experience.
Description
Technical field
The present invention relates to technical field of medical equipment more particularly to a kind of ventilator parameter tune based on inspiratory effort degree
Adjusting method and ventilator.
Background technique
The use of noninvasive ventilator is to help patient and restores normal lung function, and patient is when using ventilator, such as
Fruit itself no breathing, breathing muscle are not taken exercise effectively, and recovery time will be elongated, and recovery effects are bad；If from
Body breathing is excessively exerted oneself, and is easy to cause breathing muscular fatigue, and then cause other risks.Currently, clinician is mostly to utilize warp
The impression of patient is tested or inquired to judge whether patient currently breathes normally, and then adjusts ventilator, it is difficult to be obtained from objective angle
Know the truth of patient, therefore the adjustment of the parameters of ventilator is inaccurate.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of ventilator parameter adjustment sides based on inspiratory effort degree
Method and ventilator.
The technical scheme to solve the above technical problems is that a kind of ventilator parameter based on inspiratory effort degree
Method of adjustment, the ventilator parameter method of adjustment based on inspiratory effort degree include:
S1 calculates the inspiratory flow change rate that user starts the air-breathing moment to ventilator triggering moment；
S2 calculates the pressure of inspiration(Pi) change rate that user starts the air-breathing moment to ventilator triggering moment；
S3 obtains the change rate summation of the inspiratory flow change rate and the pressure of inspiration(Pi) change rate, according to preset
Inspiratory effort grade locating for change rate summation described in flow rate pressure change rate and the division Relation acquisition of inspiratory effort grade；
S4 is adjusted the parameter of the ventilator according to inspiratory effort grade locating for the change rate summation.
Preferably, the step S1 includes:
S11 starts the air-breathing moment in user, obtains the first current inspiration flow value of user；
S12 obtains the second current inspiration flow value of user in the ventilator triggering moment；
S13 starts time interval, first inspiratory flow between air-breathing moment and ventilator triggering moment according to user
Magnitude and second inspiration flow value calculate the inspiratory flow change rate.
It is preferably, described to calculate the inspiratory flow change rate Δ F are as follows:
Wherein, the t0 moment is that user starts the air-breathing moment, and F0 is first inspiration flow value, and the t1 moment is the breathing
Machine triggering moment, F1 are second inspiration flow value, and F is the inspiration flow value of t0 to any time t between the t1 moment.
Preferably, the step S2 includes:
S21 starts the air-breathing moment in user, obtains the first current pressure of inspiration(Pi) force value of the ventilator；
S22 obtains the second current pressure of inspiration(Pi) force value of the ventilator in the ventilator triggering moment；
S23 starts time interval between air-breathing moment and ventilator triggering moment, first pressure of inspiration(Pi) according to user
Force value and the second pressure of inspiration(Pi) force value calculate the pressure of inspiration(Pi) change rate.
It is preferably, described to calculate the pressure of inspiration(Pi) change rate Δ P are as follows:
Wherein, the t0 moment is that user starts the air-breathing moment, and P0 is the first pressure of inspiration(Pi) force value, and the t1 moment is the breathing
Machine triggering moment, P1 are the second pressure of inspiration(Pi) force value, and P is the inspiration flow value of t0 to any time t between the t1 moment.
The technical solution that the present invention solves above-mentioned technical problem is also as follows: a kind of ventilator, the ventilator include:
First computing module starts the inspiratory flow variation at air-breathing moment to ventilator triggering moment for calculating user
Rate；
Second computing module starts the pressure of inspiration(Pi) variation at air-breathing moment to ventilator triggering moment for calculating user
Rate；
Module is obtained, for obtaining the change rate summation of the inspiratory flow change rate and the pressure of inspiration(Pi) change rate,
According to air-breathing locating for change rate summation described in preset flow rate pressure change rate and the division Relation acquisition of inspiratory effort grade
Make great efforts grade；
Adjust module, for the inspiratory effort grade according to locating for the change rate summation to the parameter of the ventilator into
Row adjustment.
Preferably, first computing module includes:
First acquisition unit obtains the first current inspiration flow value of user for starting the air-breathing moment in user；
Second acquisition unit, for obtaining the second current inspiration flow value of user in the ventilator triggering moment；
First computing unit, for started according to user the time interval between air-breathing moment and ventilator triggering moment,
First inspiration flow value and second inspiration flow value calculate the inspiratory flow change rate.
Preferably, first computing unit calculates the inspiratory flow change rate Δ F are as follows:
Wherein, the t0 moment is that user starts the air-breathing moment, and F0 is first inspiration flow value, and the t1 moment is the breathing
Machine triggering moment, F1 are second inspiration flow value, and F is the inspiration flow value of t0 to any time t between the t1 moment.
Preferably, second computing module includes:
Third acquiring unit obtains the first current pressure of inspiration(Pi) of the ventilator for starting the air-breathing moment in user
Value；
4th acquiring unit, for obtaining the second current pressure of inspiration(Pi) of the ventilator in the ventilator triggering moment
Force value；
Second computing unit, for started according to user the time interval between air-breathing moment and ventilator triggering moment,
The first pressure of inspiration(Pi) force value and the second pressure of inspiration(Pi) force value calculate the pressure of inspiration(Pi) change rate.
Preferably, second computing unit calculates the pressure of inspiration(Pi) change rate Δ P are as follows:
Wherein, the t0 moment is that user starts the air-breathing moment, and P0 is the first pressure of inspiration(Pi) force value, and the t1 moment is the breathing
Machine triggering moment, P1 are the second pressure of inspiration(Pi) force value, and P is the inspiration flow value of t0 to any time t between the t1 moment.
The beneficial effects of the present invention are: the present invention starts the air-breathing moment to ventilator triggering moment in user, obtain first
Then the inspiratory flow change rate of user obtains pressure of inspiration(Pi) change rate, based on inspiratory flow change rate, in conjunction with pressure of inspiration(Pi)
The inspiratory effort degree of power change rate comprehensive descision user can be prevented compared with the current inspiratory effort degree of user is accurately obtained
Some actual inspiratory level of effort that can not determine user in special circumstances may be implemented according to the inspiratory effort degree of user
Accurately the parameter of ventilator is adjusted, is improved the user experience.
Detailed description of the invention
Fig. 1 is that the present invention is based on the flow diagrams of one embodiment of ventilator parameter method of adjustment of inspiratory effort degree；
Fig. 2 is the flow diagram of step S1 shown in Fig. 1；
Fig. 3 is inspiratory flow-time curve figure shown in Fig. 2；
Fig. 4 is the flow diagram of step S2 shown in Fig. 1；
Fig. 5 is pressure of inspiration(Pi)-time plot shown in Fig. 4；
Fig. 6 is the structural schematic diagram of one embodiment of ventilator of the present invention；
Fig. 7 is the structural schematic diagram of the first computing module shown in Fig. 6；
Fig. 8 is the structural schematic diagram of the second computing module shown in Fig. 6.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in FIG. 1, FIG. 1 is the present invention is based on the streams of one embodiment of ventilator parameter method of adjustment of inspiratory effort degree
Journey schematic diagram, should ventilator parameter method of adjustment based on inspiratory effort degree the following steps are included:
Step S1 calculates the inspiratory flow change rate that user starts the air-breathing moment to ventilator triggering moment；
In the present embodiment, user is when using ventilator, such as can pass through the size and variation of ventilator inspiratory flow
Situation determines whether user carries out air-breathing, or monitors user by other means, such as supervises to the sign variation of user
Survey would know that whether user carries out air-breathing.When user starts air-breathing, inspiration flow value is smaller, and inspiration flow value is substantially
It remains unchanged, records user at this time and start the air-breathing moment, and start the inspiratory flow of air-breathing moment corresponding ventilator in user
Magnitude.
As user carries out air-breathing, the inspiration flow value of ventilator is become larger, after ventilator is determined as triggering, record
Ventilator triggering moment, and the inspiration flow value in the corresponding ventilator of ventilator triggering moment.It is determined as in ventilator
After triggering, ventilator can provide higher pressure of inspiration(Pi) (IPAP), so that inspiratory flow quickly becomes larger.
In the present embodiment, user starts the time interval very little at air-breathing moment to ventilator triggering moment, in order to calculate
The quantization degree of inspiratory flow, it may be considered that crawl user start the air-breathing moment to ventilator triggering moment (i.e. ventilator is not
In time before triggering), the inspiratory flow change rate caused by user's air-breathing.
The present embodiment can calculate inspiratory flow change rate there are many mode, for example, when can calculate user and starting air-breathing
It carves to the difference of the inspiration flow value of both ventilator triggering moments, using the difference as inspiratory flow change rate；Alternatively, can be with
The change rate that user starts the air-breathing moment to ventilator triggering moment inspiration flow value within the unit time is calculated, when with the unit
The change rate of interior inspiration flow value is as inspiratory flow change rate, etc..
Step S2 calculates the pressure of inspiration(Pi) change rate that user starts the air-breathing moment to ventilator triggering moment；
In the present embodiment, when using ventilator, if user does not breathe, the pressure of ventilator is kept substantially user
Certain pressure value is constant, at this point, record user starts the air-breathing moment, and starts air-breathing moment corresponding ventilator in user
Pressure of inspiration(Pi) force value.If user starts air-breathing, due to the presence of inspiratory airflow, so that the pressure value of ventilator gradually becomes smaller,
Until ventilator can provide higher pressure of inspiration(Pi) (IPAP), so that the pressure value of ventilator becomes larger, and make after ventilator triggering
It obtains inspiratory flow quickly to become larger, thus user can suck enough oxygen, after ventilator triggering, when recording respiration machine triggers
It carves, and in the pressure of inspiration(Pi) force value of the corresponding ventilator of ventilator triggering moment.
In the present embodiment, in order to calculate the quantization degree of pressure of inspiration(Pi), it may be considered that crawl is when user starts air-breathing
Carve to ventilator triggering moment (i.e. ventilator do not trigger before time in), the pressure of inspiration(Pi) change rate caused by user's air-breathing.
Wherein, the present embodiment can calculate pressure of inspiration(Pi) change rate there are many mode, start to inhale for example, user can be calculated
The gas moment to both ventilator triggering moments pressure of inspiration(Pi) force value difference, using the difference as pressure of inspiration(Pi) change rate；Alternatively,
The change rate that user starts the air-breathing moment to ventilator triggering moment pressure of inspiration(Pi) value within the unit time can be calculated, with the list
The change rate of pressure of inspiration(Pi) value is as pressure of inspiration(Pi) change rate, etc. in the time of position.
Step S3 obtains the change rate summation of the inspiratory flow change rate and the pressure of inspiration(Pi) change rate, according to pre-
If flow rate pressure change rate and inspiratory effort grade division Relation acquisition described in inspiratory effort locating for change rate summation etc.
Grade；
In the present embodiment, user's air-breathing when using ventilator can generally be embodied according to the inspiratory flow change rate of user
Independently firmly situation, but in some special cases, the inspiratory flow change rate of user can not accurately embody air-breathing
Autonomous firmly situation, such as when user turns over or when the connection of the pipeline of ventilator is not close, inspiratory flow can become larger suddenly,
But actually there is no forced suctions by user.
The present embodiment is based on inspiratory flow change rate, and according to inspiratory flow change rate and pressure of inspiration(Pi) change rate
Change rate come comprehensive descision user's air-breathing firmly situation, i.e., with the variation of inspiratory flow change rate and pressure of inspiration(Pi) change rate
Rate summation carrys out the firmly situation of comprehensive descision user's air-breathing.
Wherein, the division relationship of preset flow rate pressure change rate Δ W and inspiratory effort grade, as 0 < Δ W < 0.3,
Corresponding inspiratory effort grade is 1 grade, and as 0.3≤Δ W < 0.6, corresponding inspiratory effort grade is 2 grades, as 0.6≤Δ W
When≤1, corresponding inspiratory effort grade is 3 grades, and inspiratory effort grade is 1 grade it is considered that the slight forced suction of user, air-breathing
Making great efforts grade is 2 grades it is considered that user's forced suction degree is more satisfactory；Inspiratory effort grade is 3 grades it is considered that user exerts oneself
Air-breathing is excessive.It is of course also possible to be divided in other ways, such as the quantization that inspiratory effort grade is refined again
Classification etc..
After the change rate summation of inspiratory flow change rate and pressure of inspiration(Pi) change rate is calculated, according to preset stream
Amount-pressure change rate Δ W is available to corresponding inspiratory effort grade with the division relationship of inspiratory effort grade, in ventilator
On can show the inspiratory effort grade in digital form.
Step S4 adjusts the parameter of the ventilator according to inspiratory effort grade locating for the change rate summation
It is whole.
In the present embodiment, after obtaining user's current inspiratory effort grade, referred to for doctor, it can be by doctor according to this
Inspiratory effort grade is adjusted the parameter of ventilator, by ventilator receive corresponding setting instruction can complete it is corresponding
The adjustment of parameter；Or ventilator can be voluntarily adjusted automatically according to inspiratory effort grade, so that ventilator is current
Parameters can be most suitable for the current service condition of user.Wherein, the parameter of adjustable ventilator is for example including breathing frequency
Rate, tidal volume, inspiratory flow rate, oxygen concentration and inspiratory apnea time etc..
Compared with prior art, the present embodiment starts the air-breathing moment to ventilator triggering moment in user, obtains use first
Then the inspiratory flow change rate at family obtains pressure of inspiration(Pi) change rate, based on inspiratory flow change rate, in conjunction with pressure of inspiration(Pi)
The inspiratory effort degree of change rate comprehensive descision user can prevent one compared with the current inspiratory effort degree of user is accurately obtained
It can not determine that standard may be implemented according to the inspiratory effort degree of user in the actual inspiratory level of effort of user in special circumstances a bit
Really the parameter of ventilator is adjusted, is improved the user experience.
In a preferred embodiment, as shown in Fig. 2, on the basis of the embodiment of above-mentioned Fig. 1, above-mentioned steps S1 packet
It includes:
S11 starts the air-breathing moment in user, obtains the first current inspiration flow value of user；
S12 obtains the second current inspiration flow value of user in the ventilator triggering moment；
S13 starts time interval, first inspiratory flow between air-breathing moment and ventilator triggering moment according to user
Magnitude and second inspiration flow value calculate the inspiratory flow change rate.
In conjunction with refering to Fig. 3, Fig. 3 is inspiratory flow-time curve figure, and at the t0 moment, user starts air-breathing, corresponding first
Inspiration flow value is F0, and at the t1 moment, ventilator triggering, corresponding second inspiration flow value is F1, and t0 is to any between the t1 moment
The inspiration flow value of moment t is F, and F0≤F≤F1, it can be seen that bent if the slight air-breathing of user in t0 to t1 moment
Line is more gentle, and the speed of rising is slow, if user is compared with forced suction, curve is more precipitous, and the rate of climb is fast.
The preferred embodiment of the present embodiment calculating inspiratory flow change rate Δ F are as follows:
As seen from Figure 3, since recessed shape is presented in inspiratory flow-time curve, if the slight air-breathing of user,
Recessed shape is more presented in inspiratory flow-time curve, if user, compared with forced suction, inspiratory flow-time curve more connects
Nearly rectilinear form, therefore, the maximum value of inspiratory flow change rate Δ F are not more than 0.5.
In a preferred embodiment, as shown in figure 4, on the basis of the embodiment of above-mentioned Fig. 1, above-mentioned steps S2 packet
It includes:
S21 starts the air-breathing moment in user, obtains the first current pressure of inspiration(Pi) force value of the ventilator；
S22 obtains the second current pressure of inspiration(Pi) force value of the ventilator in the ventilator triggering moment；
S23 starts time interval between air-breathing moment and ventilator triggering moment, first pressure of inspiration(Pi) according to user
Force value and the second pressure of inspiration(Pi) force value calculate the pressure of inspiration(Pi) change rate.
In conjunction with refering to Fig. 5, Fig. 5 is pressure of inspiration(Pi)-time plot, and at the t0 moment, user starts air-breathing, corresponding first
Pressure of inspiration(Pi) force value is P0, and at the t1 moment, ventilator triggering, corresponding second pressure of inspiration(Pi) force value is P1, and t0 is to any between the t1 moment
The inspiration flow value of moment t is P, and P1≤P≤P0, it can be seen that in t0 to t1 moment, with above-mentioned inspiratory flow-time
Curve is similar.
The preferred embodiment of the present embodiment calculating pressure of inspiration(Pi) change rate Δ P are as follows:
As seen from Figure 5, since recessed shape will not be presented in pressure of inspiration(Pi) force-time curve, pressure of inspiration(Pi) becomes
The maximum value of rate Δ P is not more than 0.5, finally makes the change rate summation of inspiratory flow change rate and pressure of inspiration(Pi) change rate not
It can be more than 1.
As shown in fig. 6, Fig. 6 is the structural schematic diagram of one embodiment of ventilator of the present invention, which includes:
First computing module 101 starts the inspiratory flow quantitative change at air-breathing moment to ventilator triggering moment for calculating user
Rate；
In the present embodiment, user is when using ventilator, such as can pass through the size and variation of ventilator inspiratory flow
Situation determines whether user carries out air-breathing, or monitors user by other means, such as supervises to the sign variation of user
Survey would know that whether user carries out air-breathing.When user starts air-breathing, inspiration flow value is smaller, and inspiration flow value is substantially
It remains unchanged, records user at this time and start the air-breathing moment, and start the inspiratory flow of air-breathing moment corresponding ventilator in user
Magnitude.
As user carries out air-breathing, the inspiration flow value of ventilator is become larger, after ventilator is determined as triggering, record
Ventilator triggering moment, and the inspiration flow value in the corresponding ventilator of ventilator triggering moment.It is determined as in ventilator
After triggering, ventilator can provide higher pressure of inspiration(Pi) (IPAP), so that inspiratory flow quickly becomes larger.
In the present embodiment, user starts the time interval very little at air-breathing moment to ventilator triggering moment, in order to calculate
The quantization degree of inspiratory flow, it may be considered that crawl user start the air-breathing moment to ventilator triggering moment (i.e. ventilator is not
In time before triggering), the inspiratory flow change rate caused by user's air-breathing.
The present embodiment can calculate inspiratory flow change rate there are many mode, for example, when can calculate user and starting air-breathing
It carves to the difference of the inspiration flow value of both ventilator triggering moments, using the difference as inspiratory flow change rate；Alternatively, can be with
The change rate that user starts the air-breathing moment to ventilator triggering moment inspiration flow value within the unit time is calculated, when with the unit
The change rate of interior inspiration flow value is as inspiratory flow change rate, etc..
Second computing module 102 starts the pressure of inspiration(Pi) change at air-breathing moment to ventilator triggering moment for calculating user
Rate；
In the present embodiment, when using ventilator, if user does not breathe, the pressure of ventilator is kept substantially user
Certain pressure value is constant, at this point, record user starts the air-breathing moment, and starts air-breathing moment corresponding ventilator in user
Pressure of inspiration(Pi) force value.If user starts air-breathing, due to the presence of inspiratory airflow, so that the pressure value of ventilator gradually becomes smaller,
Until ventilator can provide higher pressure of inspiration(Pi) (IPAP), so that the pressure value of ventilator becomes larger, and make after ventilator triggering
It obtains inspiratory flow quickly to become larger, thus user can suck enough oxygen, after ventilator triggering, when recording respiration machine triggers
It carves, and in the pressure of inspiration(Pi) force value of the corresponding ventilator of ventilator triggering moment.
In the present embodiment, in order to calculate the quantization degree of pressure of inspiration(Pi), it may be considered that crawl is when user starts air-breathing
Carve to ventilator triggering moment (i.e. ventilator do not trigger before time in), the pressure of inspiration(Pi) change rate caused by user's air-breathing.
Wherein, the present embodiment can calculate pressure of inspiration(Pi) change rate there are many mode, start to inhale for example, user can be calculated
The gas moment to both ventilator triggering moments pressure of inspiration(Pi) force value difference, using the difference as pressure of inspiration(Pi) change rate；Alternatively,
The change rate that user starts the air-breathing moment to ventilator triggering moment pressure of inspiration(Pi) value within the unit time can be calculated, with the list
The change rate of pressure of inspiration(Pi) value is as pressure of inspiration(Pi) change rate, etc. in the time of position.
Module 103 is obtained, the change rate for obtaining the inspiratory flow change rate and the pressure of inspiration(Pi) change rate is total
With according to locating for change rate summation described in the division Relation acquisition of preset flow rate pressure change rate and inspiratory effort grade
Inspiratory effort grade；
In the present embodiment, user's air-breathing when using ventilator can generally be embodied according to the inspiratory flow change rate of user
Independently firmly situation, but in some special cases, the inspiratory flow change rate of user can not accurately embody air-breathing
Autonomous firmly situation, such as when user turns over or when the connection of the pipeline of ventilator is not close, inspiratory flow can become larger suddenly,
But actually there is no forced suctions by user.
The present embodiment is based on inspiratory flow change rate, and according to inspiratory flow change rate and pressure of inspiration(Pi) change rate
Change rate come comprehensive descision user's air-breathing firmly situation, i.e., with the variation of inspiratory flow change rate and pressure of inspiration(Pi) change rate
Rate summation carrys out the firmly situation of comprehensive descision user's air-breathing.
Wherein, the division relationship of preset flow rate pressure change rate Δ W and inspiratory effort grade, as 0 < Δ W < 0.3,
Corresponding inspiratory effort grade is 1 grade, and as 0.3≤Δ W < 0.6, corresponding inspiratory effort grade is 2 grades, as 0.6≤Δ W
When≤1, corresponding inspiratory effort grade is 3 grades, and inspiratory effort grade is 1 grade it is considered that the slight forced suction of user, air-breathing
Making great efforts grade is 2 grades it is considered that user's forced suction degree is more satisfactory；Inspiratory effort grade is 3 grades it is considered that user exerts oneself
Air-breathing is excessive.It is of course also possible to be divided in other ways, such as the quantization that inspiratory effort grade is refined again
Classification etc..
After the change rate summation of inspiratory flow change rate and pressure of inspiration(Pi) change rate is calculated, according to preset stream
Amount-pressure change rate Δ W is available to corresponding inspiratory effort grade with the division relationship of inspiratory effort grade, in ventilator
On can show the inspiratory effort grade in digital form.
Module 104 is adjusted, for the inspiratory effort grade according to locating for the change rate summation to the ginseng of the ventilator
Number is adjusted.
In the present embodiment, after obtaining user's current inspiratory effort grade, referred to for doctor, it can be by doctor according to this
Inspiratory effort grade is adjusted the parameter of ventilator, by ventilator receive corresponding setting instruction can complete it is corresponding
The adjustment of parameter；Or ventilator can be voluntarily adjusted automatically according to inspiratory effort grade, so that ventilator is current
Parameters can be most suitable for the current service condition of user.Wherein, the parameter of adjustable ventilator is for example including breathing frequency
Rate, tidal volume, inspiratory flow rate, oxygen concentration and inspiratory apnea time etc..
In a preferred embodiment, as shown in fig. 7, on the basis of the embodiment of above-mentioned Fig. 6, above-mentioned first calculates mould
Block 101 includes:
First acquisition unit obtains the first current inspiration flow value of user for starting the air-breathing moment in user；
Second acquisition unit, for obtaining the second current inspiration flow value of user in the ventilator triggering moment；
First computing unit, for started according to user the time interval between air-breathing moment and ventilator triggering moment,
First inspiration flow value and second inspiration flow value calculate the inspiratory flow change rate.
In conjunction with refering to Fig. 3, Fig. 3 is inspiratory flow-time curve figure, and at the t0 moment, user starts air-breathing, corresponding first
Inspiration flow value is F0, and at the t1 moment, ventilator triggering, corresponding second inspiration flow value is F1, and t0 is to any between the t1 moment
The inspiration flow value of moment t is F, and F0≤F≤F1, it can be seen that bent if the slight air-breathing of user in t0 to t1 moment
Line is more gentle, and the speed of rising is slow, if user is compared with forced suction, curve is more precipitous, and the rate of climb is fast.
The first computing unit of the present embodiment calculates the inspiratory flow change rate Δ F are as follows:
As seen from Figure 3, since recessed shape is presented in inspiratory flow-time curve, if the slight air-breathing of user,
Recessed shape is more presented in inspiratory flow-time curve, if user, compared with forced suction, inspiratory flow-time curve more connects
Nearly rectilinear form, therefore, the maximum value of inspiratory flow change rate Δ F are not more than 0.5.
In a preferred embodiment, as shown in fig. 7, on the basis of the embodiment of above-mentioned Fig. 6, above-mentioned second calculates mould
Block 102 includes:
Third acquiring unit obtains the first current pressure of inspiration(Pi) of the ventilator for starting the air-breathing moment in user
Value；
4th acquiring unit, for obtaining the second current pressure of inspiration(Pi) of the ventilator in the ventilator triggering moment
Force value；
Second computing unit, for started according to user the time interval between air-breathing moment and ventilator triggering moment,
The first pressure of inspiration(Pi) force value and the second pressure of inspiration(Pi) force value calculate the pressure of inspiration(Pi) change rate.
In conjunction with refering to Fig. 5, Fig. 5 is pressure of inspiration(Pi)-time plot, and at the t0 moment, user starts air-breathing, corresponding first
Pressure of inspiration(Pi) force value is P0, and at the t1 moment, ventilator triggering, corresponding second pressure of inspiration(Pi) force value is P1, and t0 is to any between the t1 moment
The inspiration flow value of moment t is P, and P1≤P≤P0, it can be seen that in t0 to t1 moment, with above-mentioned inspiratory flow-time
Curve is similar.
The second computing unit of the present embodiment calculates the pressure of inspiration(Pi) change rate Δ P are as follows:
As seen from Figure 5, since recessed shape will not be presented in pressure of inspiration(Pi) force-time curve, pressure of inspiration(Pi) becomes
The maximum value of rate Δ P is not more than 0.5, finally makes the change rate summation of inspiratory flow change rate and pressure of inspiration(Pi) change rate not
It can be more than 1.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of ventilator parameter method of adjustment based on inspiratory effort degree, which is characterized in that described to be based on inspiratory effort journey
The ventilator parameter method of adjustment of degree includes:
S1 calculates the inspiratory flow change rate that user starts the air-breathing moment to ventilator triggering moment；
S2 calculates the pressure of inspiration(Pi) change rate that user starts the air-breathing moment to ventilator triggering moment；
S3 obtains the change rate summation of the inspiratory flow change rate and the pressure of inspiration(Pi) change rate, according to preset flow-
Inspiratory effort grade locating for change rate summation described in pressure change rate and the division Relation acquisition of inspiratory effort grade；
S4 is adjusted the parameter of the ventilator according to inspiratory effort grade locating for the change rate summation.
2. according to claim 1 based on the ventilator parameter method of adjustment of inspiratory effort degree, which is characterized in that the step
Suddenly S1 includes:
S11 starts the air-breathing moment in user, obtains the first current inspiration flow value of user；
S12 obtains the second current inspiration flow value of user in the ventilator triggering moment；
S13 starts time interval between air-breathing moment and ventilator triggering moment, first inspiration flow value according to user
And second inspiration flow value calculates the inspiratory flow change rate.
3. according to claim 2 based on the ventilator parameter method of adjustment of inspiratory effort degree, which is characterized in that the meter
Calculate the inspiratory flow change rate Δ F are as follows:
Wherein, the t0 moment is that user starts the air-breathing moment, and F0 is first inspiration flow value, and the t1 moment is ventilator touching
The moment is sent out, F1 is second inspiration flow value, and F is the inspiration flow value of t0 to any time t between the t1 moment.
4. according to claim 1 based on the ventilator parameter method of adjustment of inspiratory effort degree, which is characterized in that the step
Suddenly S2 includes:
S21 starts the air-breathing moment in user, obtains the first current pressure of inspiration(Pi) force value of the ventilator；
S22 obtains the second current pressure of inspiration(Pi) force value of the ventilator in the ventilator triggering moment；
S23 starts time interval, the first pressure of inspiration(Pi) force value between air-breathing moment and ventilator triggering moment according to user
And the second pressure of inspiration(Pi) force value calculates the pressure of inspiration(Pi) change rate.
5. according to claim 4 based on the ventilator parameter method of adjustment of inspiratory effort degree, which is characterized in that the meter
Calculate the pressure of inspiration(Pi) change rate Δ P are as follows:
Wherein, the t0 moment is that user starts the air-breathing moment, and P0 is the first pressure of inspiration(Pi) force value, and the t1 moment is ventilator touching
The moment is sent out, P1 is the second pressure of inspiration(Pi) force value, and P is the inspiration flow value of t0 to any time t between the t1 moment.
6. a kind of ventilator, which is characterized in that the ventilator includes:
First computing module starts the inspiratory flow change rate at air-breathing moment to ventilator triggering moment for calculating user；
Second computing module starts the pressure of inspiration(Pi) change rate at air-breathing moment to ventilator triggering moment for calculating user；
Module is obtained, for obtaining the change rate summation of the inspiratory flow change rate and the pressure of inspiration(Pi) change rate, according to
Inspiratory effort locating for change rate summation described in preset flow rate pressure change rate and the division Relation acquisition of inspiratory effort grade
Grade；
Module is adjusted, the parameter of the ventilator is adjusted for the inspiratory effort grade according to locating for the change rate summation
It is whole.
7. ventilator according to claim 6, which is characterized in that first computing module includes:
First acquisition unit obtains the first current inspiration flow value of user for starting the air-breathing moment in user；
Second acquisition unit, for obtaining the second current inspiration flow value of user in the ventilator triggering moment；
First computing unit, for starting the time interval between air-breathing moment and ventilator triggering moment, described according to user
First inspiration flow value and second inspiration flow value calculate the inspiratory flow change rate.
8. ventilator according to claim 7, which is characterized in that first computing unit calculates the inspiratory flow variation
Rate Δ F are as follows:
Wherein, the t0 moment is that user starts the air-breathing moment, and F0 is first inspiration flow value, and the t1 moment is ventilator touching
The moment is sent out, F1 is second inspiration flow value, and F is the inspiration flow value of t0 to any time t between the t1 moment.
9. ventilator according to claim 6, which is characterized in that second computing module includes:
Third acquiring unit obtains the first current pressure of inspiration(Pi) force value of the ventilator for starting the air-breathing moment in user；
4th acquiring unit, for obtaining the second current pressure of inspiration(Pi) force value of the ventilator in the ventilator triggering moment；
Second computing unit, for starting the time interval between air-breathing moment and ventilator triggering moment, described according to user
First pressure of inspiration(Pi) force value and the second pressure of inspiration(Pi) force value calculate the pressure of inspiration(Pi) change rate.
10. ventilator according to claim 9, which is characterized in that second computing unit calculates the pressure of inspiration(Pi) and becomes
Rate Δ P are as follows:
Wherein, the t0 moment is that user starts the air-breathing moment, and P0 is the first pressure of inspiration(Pi) force value, and the t1 moment is ventilator touching
The moment is sent out, P1 is the second pressure of inspiration(Pi) force value, and P is the inspiration flow value of t0 to any time t between the t1 moment.
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| CN106730209B (en) * | 2017-01-18 | 2019-11-22 | 湖南明康中锦医疗科技发展有限公司 | The method and ventilator of ventilator alarm |
| CN109222978A (en) * | 2018-09-22 | 2019-01-18 | 广州和普乐健康科技有限公司 | A kind of respiratory effort detection method |
| CN111265746B (en) * | 2020-01-20 | 2022-02-22 | 深圳市科曼医疗设备有限公司 | Hybrid chamber pressure control method, ventilator apparatus, and computer-readable storage medium |
| CN111899862B (en) * | 2020-09-08 | 2024-03-19 | 平安科技（深圳）有限公司 | Breathing machine parameter acquisition method, device, equipment and storage medium |
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