CN109621119A - The method and ventilator of the ventilator adjust automatically rate of rise - Google Patents
The method and ventilator of the ventilator adjust automatically rate of rise Download PDFInfo
- Publication number
- CN109621119A CN109621119A CN201811619584.5A CN201811619584A CN109621119A CN 109621119 A CN109621119 A CN 109621119A CN 201811619584 A CN201811619584 A CN 201811619584A CN 109621119 A CN109621119 A CN 109621119A
- Authority
- CN
- China
- Prior art keywords
- flow
- rise
- rate
- air
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/02—Gases
- A61M2202/0208—Oxygen
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The present invention relates to a kind of methods of ventilator adjust automatically rate of rise, judge whether the phenomenon that air-flow overshoot occur according to inspiratory waveform parameter, the step of adjust automatically rate of rise, ventilator adjust automatically rate of rise method includes: unlatching ventilator, sets initial boost speed V0；Obtain initial respiratory waveform parameter；According to waveform parameter, judge whether breathing air-flow overshoot occurs；There is air-flow overshoot, carries out reducing rate of rise adjustment, tune up boosting gear；Do not occur air-flow overshoot, carries out promoting rate of rise adjustment, turn boosting gear down；Do not occur air-flow overshoot after boosting gear is transferred to maximum or minimum or adjustment, terminates adjustment.The present invention makes the rate of rise meet the breathing habit and feature of user within the time of 2~3 respiratory cycles, is conducive to the recovery of patient.
Description
Technical field
The present invention relates to technical field of medical equipment, and in particular to a kind of method of the ventilator adjust automatically rate of rise and
Ventilator.
Background technique
At work, when user's air-breathing, needs to provide high pressure IPAP to ventilator, needs to provide low pressure when exhaling
EPAP, the speed for rising to IPAP from EPAP are exactly the rate of rise, and corresponding, speed is faster, is raised to IPAP from EPAP and is taken
Between it is shorter.The rate of rise of the prior art (a kind of ventilator of CN108310563) be by manually set different gears come
It is adjusted, usually has 1~6 gear adjustable, but 6 fixed gears are generally unattainable the degree being most preferably adapted to, and need
Adjustment, which is repeated, can just find proper boosting gear.
User is when using ventilator, and due to the difference of individual, some users need rapid pressure, and some users are not
It is resistant to rapid pressure, and existing ventilator is unable to adjust the rate of rise, patient respiratory can be made to get up so uncomfortable, is unfavorable for
The rehabilitation of patient, therefore carrying out the adjustment of the rate of rise according to the personal feature of user is a urgent problem to be solved.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides the method and breathing of a kind of ventilator adjust automatically rate of rise
Machine, this programme use automatic identification user expiratory phase waveform parameter, judge the rate of rise be it is too fast or excessively slow, it is too fast,
The rate of rise is then reduced, excessively slowly, then the rate of rise is promoted, finally the rate of rise is allowed most to accord within the time of 2~3 respiratory cycles
The breathing habit and feature for sharing family, reach the degree of the most comfortable.
In order to solve the above technical problems, the invention provides the following technical scheme: a kind of ventilator adjust automatically rate of rise
Method, it is characterised in that: obtain the inspiratory waveform parameter of user, and judge whether air-flow overshoot occur according to waveform parameter
Phenomenon, the adjust automatically rate of rise, finally make within 2~3 respiratory cycles the rate of rise meet user breathing habit and
Feature.
The step of ventilator adjust automatically rate of rise method includes:
Step S1: opening ventilator, sets initial boost speed V0；
Step S2: the initial respiratory waveform parameter of user is obtained；
Step S3: according to waveform parameter, judge whether user's breathing air-flow overshoot occurs；
: there is air-flow overshoot in step S4, carries out reducing rate of rise adjustment, tunes up boosting gear；Do not occur air-flow overshoot,
It carries out promoting rate of rise adjustment, turns boosting gear down；
Step S5: boosting gear does not occur air-flow overshoot after being transferred to maximum or minimum or adjustment, terminates adjustment.
Further, the peak flow Fmax for obtaining user's initial respiratory waveform parameter when including: user's air-breathing and
The time T for reaching peak flow further includes the slope K 1 in the linear fit of the section T-200ms to T flow, in T+200ms to T
The slope K 2 of the linear fit of section flow.
Further, described to judge user includes: the step of whether breathing air-flow overshoot occurs
Step S31: according to formula θ=tan-1K1-tan-1K2 calculates the angle theta between K1 and K2；
Step S32: judging the relationship of angle theta and 60 degree, works as θ > 60 degree, current gear meets user's use, without adjustment；
When θ < 60 degree, the absolute drop of peak flow is further judged；
Step S33: in the section from T-200ms to T+200ms, the flow minimum Fmin that user exhales is obtained, is calculated
The value of Fmax-Fmin out；
Step S34: judging the relationship of Fmax-Fmin and 5LPM, work as Fmax-Fmin > 5LPM, judges that user's breathing occurs
Air-flow overshoot；As Fmax-Fmin < 5LPM, judge that air-flow overshoot does not occur in user's breathing.
Further, the reduction rate of rise adjust the step of include:
Step Sa41: it is based on current boost notch speed degree VA is currentWith upward one grade of boosting notch speed degree VA current+1, according to formula VA'=
(VA is current+VA current+1)/2 calculate the target rate of rise V for needing to adjustA'；
Step Sa42: V is obtainedA' boost under gear, the waveform parameter of user's breathing obtains the peak flow of user's breathing
FA' max, required time TA’、TA' -200ms to TA' section flow linear fit slope KA1 ' and TA'+200ms to TA' area
Between flow linear fit slope KA2'；
Step Sa43: according to current waveform parameter, judge whether user's breathing air-flow overshoot occurs；
According to formula θ 'A=tan-1KA 1'-tan-1KA 2' angle theta between two slopes is calculatedA', and judge θA' and
60 degree of relationship, works as θA' > 60 degree, current gear meets user's use, without adjustment；Work as θA' < 60 degree, further judge flow
The absolute drop of peak value；
From TA' -200ms to TA'+200ms section in, obtain user exhale flow minimum FA' min, it calculates
FA’max-FA' min value；
Judge FA’max-FA' min and 5LPM relationship, work as FA’max-FA' min < 5LPM, judge user's breathing without going out
Existing air-flow overshoot, current gear meet user's use, stop adjustment；Work as FA’max-FA' min > 5LPM, judge that user breathes appearance
Air-flow overshoot, at this point, ventilator continues to reduce rate of rise adjustment.
Step Sa44: the rate of rise V based on first time adjustmentA' and upward one grade of boosting notch speed degree VA current+1, according to public affairs
Formula VA"=(VA’+VA current+1)/2 calculate the target rate of rise V for needing to adjustA"；Obtain VA" boost under gear, user's breathing
Waveform parameter, obtain user breathing peak flow FA" max, required time TA”、TA" -200ms to TA" section flow line
Property fitting slope KA1 " and TA"+200ms to TA" section flow linear fit slope KA2"；
Step Sa45: according to current waveform parameter, judge whether user's breathing air-flow overshoot occurs；
According to formula θ "A=tan-1KA 1"-tan-1KA 2" angle theta between two slopes is calculatedA", and judge θA" and
60 degree of relationship, works as θA" > 60 degree, current gear meets user's use, without adjustment；Work as θA" < 60 degree, further judge flow
The absolute drop of peak value；
From TA" -200ms to TA"+200ms section in, obtain user exhale flow minimum FA" min, it calculates
FA”max-FA" min value；
Judge FA”max-FA" min and 5LPM relationship, work as FA”max-FA" min < 5LPM, judge user's breathing without going out
Existing air-flow overshoot, current gear meet user's use, stop adjustment；Work as FA”max-FA" min > 5LPM, judge that user breathes appearance
Air-flow overshoot, at this point, boosting shelves are directly adjusted up one grade.
Step step Sa41 and step Sa45 is repeated, shelves are adjusted to maximum until boosting, or air-flow overshoot do not occur
Until.
Further, the promotion rate of rise adjust the step of include:
Step Sb41: it is based on current boost notch speed degree VB is currentWith to next grade of boosting notch speed degree VB current -1, according to formula VB'=
(VB is current+VB current -1)/2 calculate the target rate of rise V for needing to adjustB'；
Step Sb42: V is obtainedB' boost under gear, the waveform parameter of user's breathing obtains the peak flow of user's breathing
FB' max, required time TB’、TB' -200ms to TB' section flow linear fit slope KB1 ' and TB'+200ms to TB' area
Between flow linear fit slope KB2'；
Step Sb43: according to current waveform parameter, judge whether user's breathing air-flow overshoot occurs；
According to formula θ 'B=tan-1KB 1'-tan-1KB 2' angle theta between two slopes is calculatedB', and judge θB' and
60 degree of relationship, works as θB' > 60 degree, current gear meets user's use, without adjustment；Work as θB' < 60 degree, further judge flow
The absolute drop of peak value；
From TB' -200ms to TB'+200ms section in, obtain user exhale flow minimum FB' min, it calculates
FB’max-FB' min value；
Judge FB’max-FB' min and 5LPM relationship, work as FB’max-FB' min < 5LPM, judge user's breathing without going out
Existing air-flow overshoot, current gear meet user's use, stop adjustment；Work as FB’max-FB' min > 5LPM, judge that user breathes appearance
Air-flow overshoot, at this point, ventilator continues to promote rate of rise adjustment.
Step Sb44: the rate of rise V based on first time adjustmentB' and to next grade of boosting notch speed degree VB current -1, according to public affairs
Formula VB"=(VB’+VB current -1)/2 calculate the target rate of rise V for needing to adjustB"；Obtain VB" boost under gear, user's breathing
Waveform parameter, obtain user breathing peak flow FB" max, required time TB”、TB" -200ms to TB" section flow line
Property fitting slope KB1 " and TB"+200ms to TB" section flow linear fit slope KB2"；
Step Sb45: according to current waveform parameter, judge whether user's breathing air-flow overshoot occurs；
According to formula θ "B=tan-1KB 1"-tan-1KB 2" angle theta between two slopes is calculatedB", and judge θB" and
60 degree of relationship, works as θB" > 60 degree, current gear meets user's use, without adjustment；Work as θB" < 60 degree, further judge flow
The absolute drop of peak value；
From TB" -200ms to TB"+200ms section in, obtain user exhale flow minimum FB" min, it calculates
FB”max-FB" min value；
Judge FB”max-FB" min and 5LPM relationship, work as FB”max-FB" min < 5LPM, judge user's breathing without going out
Existing air-flow overshoot, current gear meet user's use, stop adjustment；Work as FB”max-FB" min > 5LPM, judge that user breathes appearance
Air-flow overshoot, at this point, boosting shelves are directly adjusted downwards one grade.
Step step Sb41 and step Sb45 is repeated, shelves are adjusted to minimum until boosting, or air-flow overshoot do not occur
Until.
To achieve the above object, the present invention also provides a kind of ventilator, the ventilator includes: host,
The host includes processor and memory, and the processor is used for the acquisition and calculating of waveform parameter, described to deposit
Reservoir calculates resulting waveform parameter for storing, and further includes pressure sensor and flow sensor, the pressure sensor with
And flow sensor is used to detect the pressure value and flow value in host air duct, further includes timer, the timer is for obtaining
The time that peak flow values must be reached further includes rate of rise adjustment knob, and the rate of rise adjustment knob is for setting just
The adjustment of the beginning rate of rise and manual voltage boosting speed.
Beneficial effects of the present invention: the present invention uses the waveform of the expiratory phase of automatic identification user, and ventilator is independently sentenced
The disconnected rate of rise be it is too fast or excessively slow, it is too fast, then slow down the rate of rise automatically, excessively slowly, speed tuned up automatically, finally 2~3
Automatically it allows the rate of rise to be best suitable for the breathing habit and feature of user in the time of secondary respiratory cycle, repeats adjustment rotation without artificial
Button improves the good usage experience of user, is conducive to the recovery of conditions of patients, while the labour for reducing medical staff is strong
Degree.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Gentle flow through of the eupnea waveform of Fig. 1 the preferred embodiment of the present invention rushes comparison of wave shape figure.
The flow diagram that the rate of rise of Fig. 2 the preferred embodiment of the present invention adaptively adjusts.
The flow diagram of the reduction rate of rise adjustment of Fig. 3 the preferred embodiment of the present invention.
The flow diagram of the promotion rate of rise adjustment of Fig. 4 the preferred embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
A kind of method of the ventilator adjust automatically rate of rise, it is characterised in that: the inspiratory waveform parameter of user is obtained, and
Judge whether the phenomenon that air-flow overshoot occur according to waveform parameter, the adjust automatically rate of rise, finally in 2~3 respiratory cycles
The rate of rise is inside made to meet the breathing habit and feature of user.With reference to Fig. 1, in terms of inspiratory waveform, the rate of rise is too fast to be caused
When air-flow overshoots, air-breathing initial stage has apparent spike, and waveform comparison is round and smooth when eupnea.
With reference to Fig. 2, a kind of the step of ventilator adjust automatically rate of rise method, includes:
Step S1: opening ventilator, sets initial boost speed V0；
Step S2: the initial respiratory waveform parameter of user is obtained；
Further, the peak flow Fmax for obtaining user's initial respiratory waveform parameter when including: user's air-breathing and
The time T for reaching peak flow further includes the slope K 1 in the linear fit of the section T-200ms to T flow, in T+200ms to T
The slope K 2 of the linear fit of section flow.
The flow sensor collects the peak flow Fmax when air-breathing of user；When flow is in the rising stage, always
Using peak flow values as peak flow, i.e., if F > Fmax, Fmax=F, wherein F indicates that real-time traffic, Fmax indicate stream
Measure peak value.When there is Fmax > F, ventilator stops the update of peak flow, and records T of corresponding time at this time.
Step S3: according to waveform parameter, judge whether user's breathing air-flow overshoot occurs；
Further, described to judge user includes: the step of whether breathing air-flow overshoot occurs
Step S31: according to formula θ=tan-1K1-tan-1K2 calculates the angle theta between K1 and K2；
Step S32: judging the relationship of angle theta and 60 degree, works as θ > 60 degree, current gear meets user's use, without adjustment；
When θ < 60 degree, the absolute drop of peak flow is further judged；
Step S33: in the section from T-200ms to T+200ms, the flow minimum Fmin that user exhales is obtained, is calculated
The value of Fmax-Fmin out；
Step S34: judging the relationship of Fmax-Fmin and 5LPM, work as Fmax-Fmin > 5LPM, judges that user's breathing occurs
Air-flow overshoot；As Fmax-Fmin < 5LPM, judge that air-flow overshoot does not occur in user's breathing.
: there is air-flow overshoot in step S4, carries out reducing rate of rise adjustment, tunes up boosting gear；Do not occur air-flow overshoot,
It carries out promoting rate of rise adjustment, turns boosting gear down；
The step S4 includes reducing rate of rise adjustment and promoting rate of rise adjustment, when the boosting of initial gear selection
When excessive velocities, need to reach the comfortable breathing pattern of user by reducing rate of rise adjustment, when the liter of initial gear selection
When pressing speed excessively slow, need to reach the comfortable breathing pattern of user by promoting rate of rise adjustment.
With reference to Fig. 3, when the rate of rise of initial gear selection is too fast,
The reduction rate of rise adjust the step of include:
Step Sa41: it is based on current boost notch speed degree VA is currentWith upward one grade of boosting notch speed degree VA current+1, according to formula VA'=
(VA is current+VA current+1)/2 calculate the target rate of rise V for needing to adjustA'；
Step Sa42: V is obtainedA' boost under gear, the waveform parameter of user's breathing obtains the peak flow of user's breathing
FA' max, required time TA’、TA' -200ms to TA' section flow linear fit slope KA1 ' and TA'+200ms to TA' area
Between flow linear fit slope KA2'；
Step Sa43: according to current waveform parameter, judge whether user's breathing air-flow overshoot occurs；
According to formula θ 'A=tan-1KA 1'-tan-1KA 2' angle theta between two slopes is calculatedA', and judge θA' and
60 degree of relationship, works as θA' > 60 degree, current gear meets user's use, without adjustment；Work as θA' < 60 degree, further judge flow
The absolute drop of peak value；
From TA' -200ms to TA'+200ms section in, obtain user exhale flow minimum FA' min, it calculates
FA’max-FA' min value；
Judge FA’max-FA' min and 5LPM relationship, work as FA’max-FA' min < 5LPM, judge user's breathing without going out
Existing air-flow overshoot, current gear meet user's use, stop adjustment；Work as FA’max-FA' min > 5LPM, judge that user breathes appearance
Air-flow overshoot, at this point, ventilator continues to reduce rate of rise adjustment.
Step Sa44: the rate of rise V based on first time adjustmentA' and upward one grade of boosting notch speed degree VA current+1, according to public affairs
Formula VA"=(VA’+VA current+1)/2 calculate the target rate of rise V for needing to adjustA"；Obtain VA" boost under gear, user's breathing
Waveform parameter, obtain user breathing peak flow FA" max, required time TA”、TA" -200ms to TA" section flow line
Property fitting slope KA1 " and TA"+200ms to TA" section flow linear fit slope KA2"；
Step Sa45: according to current waveform parameter, judge whether user's breathing air-flow overshoot occurs；
According to formula θ "A=tan-1KA1"-tan-1KA2 " angle theta between two slopes is calculatedA", and judge θA”
With 60 degree of relationship, work as θA" > 60 degree, current gear meets user's use, without adjustment；Work as θA" < 60 degree, further judgement is flowed
Measure the absolute drop of peak value；
From TA" -200ms to TA"+200ms section in, obtain user exhale flow minimum FA" min, it calculates
FA”max-FA" min value；
Judge FA”max-FA" min and 5LPM relationship, work as FA”max-FA" min < 5LPM, judge user's breathing without going out
Existing air-flow overshoot, current gear meet user's use, stop adjustment；Work as FA”max-FA" min > 5LPM, judge that user breathes appearance
Air-flow overshoot, at this point, boosting shelves are directly adjusted up one grade.
Repeat step step Sa41 and step Sa45.
With reference to Fig. 4, when the rate of rise of initial gear selection is excessively slow,
The promotion rate of rise adjust the step of include:
Step Sb41: it is based on current boost notch speed degree VB is currentWith to next grade of boosting notch speed degree VB current -1, according to formula VB'=
(VB is current+VB current -1)/2 calculate the target rate of rise V for needing to adjustB'；
Step Sb42: V is obtainedB' boost under gear, the waveform parameter of user's breathing obtains the peak flow of user's breathing
FB' max, required time TB’、TB' -200ms to TB' section flow linear fit slope KB1 ' and TB'+200ms to TB' area
Between flow linear fit slope KB2'；
Step Sb43: according to current waveform parameter, judge whether user's breathing air-flow overshoot occurs；
According to formula θ 'B=tan-1KB 1'-tan-1KB 2' angle theta between two slopes is calculatedB', and judge θB' and
60 degree of relationship, works as θB' > 60 degree, current gear meets user's use, without adjustment；Work as θB' < 60 degree, further judge flow
The absolute drop of peak value；
From TB' -200ms to TB'+200ms section in, obtain user exhale flow minimum FB' min, it calculates
FB’max-FB' min value；
Judge FB’max-FB' min and 5LPM relationship, work as FB’max-FB' min < 5LPM, judge user's breathing without going out
Existing air-flow overshoot, current gear meet user's use, stop adjustment；Work as FB’max-FB' min > 5LPM, judge that user breathes appearance
Air-flow overshoot, at this point, ventilator continues to promote rate of rise adjustment.
Step Sb44: the rate of rise V based on first time adjustmentB' and to next grade of boosting notch speed degree VB current -1, according to public affairs
Formula VB"=(VB’+VB current -1)/2 calculate the target rate of rise V for needing to adjustB"；Obtain VB" boost under gear, user's breathing
Waveform parameter, obtain user breathing peak flow FB" max, required time TB”、TB" -200ms to TB" section flow line
Property fitting slope KB1 " and TB"+200ms to TB" section flow linear fit slope KB2"；
Step Sb45: according to current waveform parameter, judge whether user's breathing air-flow overshoot occurs；
According to formula θ "B=tan-1KB 1"-tan-1KB 2" angle theta between two slopes is calculatedB", and judge θB" and
60 degree of relationship, works as θB" > 60 degree, current gear meets user's use, without adjustment；Work as θB" < 60 degree, further judge flow
The absolute drop of peak value；
From TB" -200ms to TB"+200ms section in, obtain user exhale flow minimum FB" min, it calculates
FB”max-FB" min value；
Judge FB”max-FB" min and 5LPM relationship, work as FB”max-FB" min < 5LPM, judge user's breathing without going out
Existing air-flow overshoot, current gear meet user's use, stop adjustment；Work as FB”max-FB" min > 5LPM, judge that user breathes appearance
Air-flow overshoot, at this point, boosting shelves are directly adjusted downwards one grade.
Repeat step step Sb41 and step Sb45.
Step S5: reducing the case where rate of rise adjusts, and does not occur air-flow after boosting gear is transferred to maximum or adjustment
Overshoot terminates adjustment；The case where promoting rate of rise adjustment does not occur gas after boosting gear is transferred to minimum or adjustment and flows through
Punching terminates adjustment.
To achieve the above object, the present invention also provides a kind of ventilator, the ventilator includes: host, the host packet
Processor and memory are included, the processor is used for the acquisition and calculating of waveform parameter, and the memory calculates institute for storing
The waveform parameter obtained further includes pressure sensor and flow sensor, and the pressure sensor and flow sensor are for examining
The pressure value and flow value in host air duct are surveyed, further includes timer, the timer reaches peak flow values for obtaining
Time, further includes rate of rise adjustment knob, and rate of rise adjustment knob is for setting initial boost speed and manually
The adjustment of the rate of rise.
Preferably, the ventilator further includes the switching push button of the automatic or manual adjustment rate of rise, is used for ventilator liter
Pressure speed adjustment manually adjusts the switching of mode and self-regulation mode.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of method of the ventilator adjust automatically rate of rise, it is characterised in that: judge whether according to inspiratory waveform parameter
The phenomenon that existing air-flow overshoot, the adjust automatically rate of rise,
The step of adjust automatically rate of rise method includes:
Step S1: opening ventilator, sets initial boost speed V0；
Step S2: initial respiratory waveform parameter is obtained；
Step S3: according to waveform parameter, judge whether breathing air-flow overshoot occurs；
: there is air-flow overshoot in step S4, carries out reducing rate of rise adjustment, tunes up boosting gear；Do not occur air-flow overshoot, carries out
Rate of rise adjustment is promoted, turns boosting gear down；
Step S5: boosting gear does not occur air-flow overshoot after being transferred to maximum or minimum or adjustment, terminates adjustment.
2. a kind of method of ventilator adjust automatically rate of rise according to claim 1, which is characterized in that the acquisition
The peak flow Fmax and time T for reaching peak flow when initial respiratory waveform parameter includes: user's air-breathing, further includes in T-
The slope K 1 of the linear fit of the section 200ms to T flow, the slope K 2 of the linear fit of flow in the section T+200ms to T.
3. a kind of method of ventilator adjust automatically rate of rise according to claim 1, which is characterized in that the judgement
Breathe that the step of air-flow overshoot whether occur includes:
Step S31: according to formula θ=tan-1K1-tan-1K2 calculates the angle theta between K1 and K2；
Step S32: judging the relationship of angle theta and 60 degree, works as θ > 60 degree, and current gear, which meets, to be used, without adjustment；When θ < 60
Degree further judges the absolute drop of peak flow；
Step S33: in the section from T-200ms to T+200ms, the flow minimum Fmin of expiration is obtained, Fmax- is calculated
The value of Fmin；
Step S34: judging the relationship of Fmax-Fmin and 5LPM, work as Fmax-Fmin > 5LPM, judges that breathing gas occurs and flows through
Punching；As Fmax-Fmin < 5LPM, judge that air-flow overshoot does not occur in breathing.
4. a kind of method of ventilator adjust automatically rate of rise according to claim 1, which is characterized in that the reduction
The rate of rise adjust the step of include:
Step Sa41: it is based on current boost speed VA is currentWith upward gear rate of rise VA current+1Calculate the target for needing to adjust
Rate of rise VA', VA'=(VA is current+)/2；
Step Sa42: V is obtainedA' boost under gear, peak flow FA' max, required time TA’、TA' -200ms to TA' section stream
The slope K of the linear fit of amountA1 ' and TA'+200ms to TA' section flow linear fit slope KA2'；
Step Sa43: according to current waveform parameter, judge whether breathing air-flow overshoot occurs；
There is not air-flow overshoot in judgement breathing, and current gear, which meets, to be used, and stops adjustment；Judgement breathing, which is appointed, so there is air-flow
Overshoot, at this point, ventilator continues to reduce rate of rise adjustment:
Step Sa44: the rate of rise V based on last time adjustmentA' and it is upward one gear rate of rise VA current+1It calculates and needs to adjust
Target rate of rise VA", VA"=(VA’+VA current+1)/2；Obtain VA" boost under gear, peak flow FA" max, required time
TA”、TA" -200ms to TA" section flow linear fit slope KA1 " and TA"+200ms to TA" section flow Linear Quasi
The slope K of conjunctionA2"；
Step Sa45: according to current waveform parameter, judge whether breathing air-flow overshoot occurs；
There is not air-flow overshoot in judgement breathing, and current gear, which meets, to be used, and stops adjustment；Judgement breathing, which is appointed, so there is air-flow
Overshoot, at this point, boosting shelves are directly adjusted up one grade,
Repeat step step Sa41 and step Sa45, until boosting shelves adjust to maximum, or do not occur air-flow overshoot until.
5. a kind of method of ventilator adjust automatically rate of rise according to claim 1, which is characterized in that the promotion
The rate of rise adjust the step of include:
Step Sb41: it is based on current boost speed VB is currentWith to next gear rate of rise VB current -1) calculate the mesh for needing to adjust
Mark rate of rise VB', VB'=(VB is current+VB current -1)/2；
Step Sb42: V is obtainedB' boost under gear, peak flow FB' max, required time TB’、TB' -200ms to TB' section stream
The slope K of the linear fit of amountB1 ' and TB'+200ms to TB' section flow linear fit slope KB2'；
Step Sb43: according to current waveform parameter, judge whether breathing air-flow overshoot occurs；
There is not air-flow overshoot in judgement breathing, and current gear, which meets, to be used, and stops adjustment；There is gas and flows through in judgement breathing
Punching, at this point, ventilator continues to promote rate of rise adjustment:
Step Sb44: the rate of rise V based on last time adjustmentB' and rate of rise V to next gearB current -1It calculates and needs to adjust
Target rate of rise VB", VB"=(VB’+VB current -1)/2；Obtain VB" boost under gear, peak flow FB" max, required time
TB”、TB" -200ms to TB" section flow linear fit slope KB1 " and TB"+200ms to TB" section flow Linear Quasi
The slope K of conjunctionB2"；
Step Sb45: according to current waveform parameter, judge whether user's breathing air-flow overshoot occurs；
There is not air-flow overshoot in judgement breathing, and current gear, which meets, to be used, and stops adjustment；It is flowed through when gas occurs in judgement breathing
Punching, at this point, boosting shelves are directly adjusted downwards one grade,
Repeat step step Sb41 and step Sb45, until boosting shelves adjust to minimum, or do not occur air-flow overshoot until.
6. a kind of ventilator using claim 1-5 any one adjust automatically rate of rise method, which is characterized in that packet
Include: host, flow sensor and rate of rise adjustment knob, the host include processor and memory, and the processor is used
Acquisition, calculating in waveform parameter, the memory calculate resulting waveform parameter for storing, and the flow sensor is used for
The flow value in host air duct is detected, the rate of rise adjustment knob is for setting initial boost speed and manual mode liter
Press the adjustment of speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619584.5A CN109621119A (en) | 2018-12-28 | 2018-12-28 | The method and ventilator of the ventilator adjust automatically rate of rise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619584.5A CN109621119A (en) | 2018-12-28 | 2018-12-28 | The method and ventilator of the ventilator adjust automatically rate of rise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109621119A true CN109621119A (en) | 2019-04-16 |
Family
ID=66078748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811619584.5A Pending CN109621119A (en) | 2018-12-28 | 2018-12-28 | The method and ventilator of the ventilator adjust automatically rate of rise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109621119A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169103A (en) * | 2020-09-27 | 2021-01-05 | 湖南明康中锦医疗科技发展有限公司 | Method for adaptively adjusting voltage increasing and decreasing speed, application of method and respiration support equipment |
-
2018
- 2018-12-28 CN CN201811619584.5A patent/CN109621119A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169103A (en) * | 2020-09-27 | 2021-01-05 | 湖南明康中锦医疗科技发展有限公司 | Method for adaptively adjusting voltage increasing and decreasing speed, application of method and respiration support equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104302338B (en) | Apparatus and method for ventilation therapy | |
| EP4364655A2 (en) | Respiratory therapy apparatus and method | |
| WO2017132726A1 (en) | Methods and apparatus for treating respiratory disorders | |
| CN105126212B (en) | A kind of adjustable atomization circuit and control method | |
| EP3104775A1 (en) | Real-time detection of periodic breathing | |
| WO2006039587A1 (en) | Method and apparatus for treating cheyne-stokes respiration | |
| US20230080441A1 (en) | Systems and methods for active power management in a medical device | |
| CN105771047A (en) | Method for adjusting positive pressure of breathing machine airway | |
| US11103661B2 (en) | Apparatus and method for adaptive ramped control of positive airway pressure (PAP) | |
| CN105999490A (en) | Method for adjusting pressure of draught fan of respirator | |
| WO2015188227A1 (en) | Methods and apparatus for treatment of respiratory disorders | |
| WO2018204985A1 (en) | Methods and apparatus for treatment of respiratory disorders | |
| CN109621119A (en) | The method and ventilator of the ventilator adjust automatically rate of rise | |
| CN110461395B (en) | Method and apparatus for ventilation treatment of respiratory disorders | |
| CN102266618B (en) | Ventilation mode switching method and device | |
| CN106902428B (en) | Device for pressure-assisted or pressure-controlled artificial respiration of a patient | |
| WO2018006121A1 (en) | Diagnosis and monitoring of cardio-respiratory disorders | |
| CN106975134A (en) | Method and device for adjusting replacement point of respirator and noninvasive respirator | |
| US20230053852A1 (en) | Characterising systems for respiratory therapy | |
| CN106029142B (en) | For inverse double positive airway pressure challenges of respiratory disorder diagnosis | |
| CN111672002A (en) | Pressure adjusting method and device of breathing machine | |
| DE102016008239A1 (en) | A method of altering the respiratory gas pressure as a function of a measure of cardiac output and respiratory impairment and apparatus for performing the method | |
| CN106166318A (en) | A kind of respirator airway pressure control method | |
| AU2020256738A1 (en) | Methods and apparatus for monitoring respiratory therapy | |
| CN118284360A (en) | Characterization of a System for respiratory therapy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190416 |
|
| WD01 | Invention patent application deemed withdrawn after publication |