CN110496282A - A kind of intelligent start/stop method, apparatus and ventilator - Google Patents
A kind of intelligent start/stop method, apparatus and ventilator Download PDFInfo
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- CN110496282A CN110496282A CN201910908324.8A CN201910908324A CN110496282A CN 110496282 A CN110496282 A CN 110496282A CN 201910908324 A CN201910908324 A CN 201910908324A CN 110496282 A CN110496282 A CN 110496282A
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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
-
- 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
-
- 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
-
- 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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- 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)
- Ventilation (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a kind of intelligent start/stop method, apparatus and ventilators, which comprises step 1: acquiring the pressure signal and flow signal of user terminal；Step 2: user terminal air velocity V, pressure difference P and air leakage V are obtained according to flow signal and pressure signal respectivelyleak；Step 3: if being currently at halted state, and flow velocity V is greater than first threshold δ1Or it is less than second threshold δ2Then start intelligent starting.A kind of intelligent start/stop method, apparatus of the invention and ventilator, pass through the respiratory air flow of identification user, realize intelligent start/stop, simplify user operation process, and lifting means service efficiency extends service life of structure, energy conservation and environmental protection.
Description
Technical field
The present invention relates to field of intelligent control technology, and in particular to a kind of intelligent start/stop method, apparatus and ventilator.
Background technique
Ventilator is a kind of normal physiologic respiration that can replace, control or change people, increases pulmonary ventilation volume, improves work of breathing
Can, mitigate respiratory function consumption, saves the device of heart reservation ability.Sleep-respiratory machine (or being noninvasive ventilator) is by giving
Fixed pressure constantly for patient provides oxygen, improves oxygen deficit problem when patient sleeps with this.Sleep-respiratory owner wants
For treating sleep apnea syndrome, that is, severe snoring and with symptom of feeling suffocated, and it can also treat and sleep
The complication of dormancy apnea syndrome improves blood oxygen concentration when user's nighttime sleep, treatment hypoxemia etc..
In the prior art, in use, usually breathing machine host (or humidification machine) passes through connecting line to ventilator
Mask is connected, mask is covered in user's face, provides barotropic gas for user.User needs when starting or stoping ventilator
The main interface of ventilator is manually operated, to control ventilator.Therefore it is more numerous to start or stop operation for existing ventilator
It is trivial, and be easy to cause discomfort during wearing mask and starting ventilator, on the other hand, user is forgetting to shut down or sleep
It falls off when dormancy since turn etc. may cause mask, so as to cause the long-term high loaded process of ventilator, not only wastes electric power, but also
Damage ventilator reduces its service life.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of intelligent start/stop method, apparatus and ventilator, the intelligence open
Stop method, apparatus and breathing function and effectively simplify the operation of sleep-respiratory machine, the normal operation for the machine that ensures respiration, energy conservation and environmental protection is simultaneously prolonged
The service life of long ventilator.
To achieve the goals above, it includes: step 1 that the present invention, which discloses a kind of intelligent start/stop method: acquiring the pressure of user terminal
Force signal and flow signal；Step 2: user terminal air velocity V, pressure difference P are obtained according to flow signal and pressure signal respectively
With air leakage Vleak；Step 3: if being currently at halted state, and flow velocity V is greater than first threshold δ1Or it is less than second threshold δ2
Then start intelligent starting.
Preferably, in above-mentioned steps three, if current device is in starting state, and pressure difference P and air leakage Vleak's
Difference is greater than δ3Then intelligence stops.
Preferably, in above-mentioned steps three, first threshold δ1It is greater than first threshold δ for 15cm/s, current flow V1And continue
Then start intelligent starting within time 2 seconds or more.
Preferably, in above-mentioned steps three, second threshold δ2It is less than second threshold δ for 0cm/s, current flow V2And continue
Then start intelligent starting within time 1 second or more.
Preferably, in above-mentioned steps three, third threshold value δ3It is 20, air leakage VleakIt is greater than the with the difference of current differential pressure P
Three threshold value δ3And then start intelligent stopping more than for 10 seconds.
According to the second aspect of the invention, the present invention also provides a kind of intelligent start/stop device, described device includes acquisition mould
Block, for acquiring the pressure signal and airflow signal of user terminal；Processing module, for being distinguished according to flow signal and pressure signal
Obtain user terminal air velocity V, pressure difference P and air leakage Vleak, intelligent starting module, if for judging to be currently at stopping shape
State, and flow velocity V is greater than first threshold δ1Or it is less than second threshold δ2Then start intelligent starting.
Preferably, the intelligent start/stop device further includes intelligent stopping modular, if for judging to be currently at starting state,
And air leakage VleakIt is greater than δ with the difference of current differential pressure P3Then intelligence stops.
Preferably, the first threshold δ of the intelligent starting module1For 15cm/s, second threshold δ2For 0cm/s, current flow
V is greater than first threshold δ1Or it is less than second threshold δ2And the duration 2 seconds or more then start intelligent starting.
Preferably, the third threshold value δ of the intelligent stopping modular3It is 20, air leakage VleakWith the difference of current differential pressure P
Greater than third threshold value δ3And then start intelligent stopping more than for 10 seconds.
Preferably, described device further includes memory and processor, and the memory for storing instruction, use by described instruction
It is operated in controlling the processor to execute the intelligent start/stop method described according to a first aspect of the present invention.
According to the third aspect of the invention we, the present invention also provides a kind of ventilators, which is characterized in that including the present invention second
Intelligent start/stop device described in aspect.
The beneficial effects of the present invention are embodied in: a kind of intelligent start/stop method, apparatus of the invention and ventilator pass through identification
The respiratory air flow of user realizes intelligent start/stop, simplifies user operation process, and lifting means service efficiency extends equipment and works the longevity
Life, energy conservation and environmental protection.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.
Fig. 1 is a kind of flow diagram of intelligent start/stop method of the present invention.
Fig. 2 is a kind of structural schematic diagram of intelligent start/stop device of the present invention.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
As shown in Figure 1, a kind of intelligent start/stop method disclosed by the invention includes: step 1: acquiring the pressure letter of user terminal
Number and flow signal；Step 2: user terminal air velocity V, pressure difference P and leakage are obtained according to flow signal and pressure signal respectively
Tolerance Vleak；Step 3: if being currently at halted state, and flow velocity V is greater than first threshold δ1Or it is less than second threshold δ2Then open
Beginning intelligent starting.Specifically, the air velocity V for acquiring user terminal is actually the air velocity at mask end, under normal circumstances, such as
Fruit user does not wear mask, and air velocity at this time is zero or very little, only after user takes mask, due to exhaling for user
Inspiratory flow causes the air velocity of user terminal to change.For example, air velocity becomes larger when user exhales, work as user
When air-breathing, air velocity becomes smaller (air velocity is on the contrary, less than 0).
Further, in above-mentioned steps three, if current device is in starting state, and pressure difference P and air leakage Vleak
Difference be greater than δ3Then intelligence stops.Specifically, after actuation due to equipment (ventilator), due to the high speed rotation of blower, from
User terminal (mask end) output is all barotropic gas, so sleep-respiratory machine has pressure difference always in use, that is, is used
Family end pressure is higher than air pressure, and when user removes mask or mask surprisingly falls off, air leakage greatly increases at this time, holds
Intelligible to be, current pressure difference is bigger, and air leakage is also bigger, if mask normally wears use, the difference of air leakage and pressure difference
Value is smaller, and when mask falls off, the difference of air leakage and pressure difference is larger.
Further, in above-mentioned steps three, first threshold δ1It is greater than first threshold δ for 15cm/s, current flow V1And it holds
Continuous 2 seconds time or more then starts intelligent starting.In an embodiment of the present invention, flowing to host side (from outside inward) from mask end is
Forward direction, by first threshold δ1It is set as 15cm/s, can prevent from leading to system erroneous judgement for other air agitations such as natural winds, separately
On the one hand, first threshold is not too big, leads to not identify normal exhalation, so that intelligent starting breathes machine equipment.
In an embodiment of the present invention, in step 3, current flow V is greater than first threshold δ1Duration 2 seconds or more
It is the practical breathing situation in order to meet human body, further excludes other interference, identify human body respiration air-flow.Certainly at it
In his embodiment, the duration can be other numerical value for meeting and really exhaling, such as 1 seconds also belong to the present invention with first-class
Protection scope.
Further, in the step 3, second threshold δ2It is less than second threshold δ for 0cm/s, current flow V2And it holds
Continuous 2 seconds time or more then starts intelligent starting.In an embodiment of the present invention, flowing to mask end (from inside outwards) from host side is
Reversely, by second threshold δ2It is set as 0cm/s, because breathing machine equipment is in halted state, no air is transferred to face through host
Cover, due to getter action, causes the reduction of mask end pressure, air is from host side through connecting tube only after user wears mask
To mask end, it is negative value that air velocity at this time is contrary when exhaling with user, the aspiratory action of user is recognized, thus intelligence
It can starting breathing machine equipment.
In an embodiment of the present invention, in step 3, current flow V is less than second threshold δ2Duration 2 seconds or more
It is the practical breathing situation in order to meet human body, further excludes other interference, identify human body respiration air-flow.Certainly at it
In his embodiment, the duration can be other numerical value for meeting actual inspiratory, such as 1 seconds also belong to the present invention with first-class
Protection scope.
Further, in above-mentioned steps three, third threshold value δ3It is 20, current differential pressure P and air leakage VleakDifference be greater than
Third threshold value δ3And then start intelligent stopping more than for 10 seconds.In an embodiment of the present invention, since mask is equipped with mark
Quasi- gas outlet, it is readily appreciated that, pressure difference is bigger, and air leakage is bigger, by the corresponding normal air leakage of experimental record difference pressure difference,
The result that air leakage subtracts current differential pressure is more stable, and only when mask falls off, cause air leakage to greatly increase, so as to cause
Difference becomes larger.When the difference of air leakage and current differential pressure is greater than third threshold value, then it is likely due to caused by mask falls off, from
And intelligence stops ventilator equipment.
As shown in Fig. 2, according to the second aspect of the invention, the present invention also provides a kind of intelligent start/stop device, described devices
Including acquisition module, for acquiring the pressure signal and airflow signal of user terminal；Processing module, for according to flow signal and pressure
Force signal obtains user terminal air velocity V, pressure difference P and air leakage V respectivelyleak, intelligent starting module, if current for judging
In halted state, and flow velocity V is greater than first threshold δ1Or it is less than second threshold δ2Then start intelligent starting.
In an embodiment of the present invention, acquisition module includes differential pressure pickup and flow sensor, and acquisition is passed through respectively
Gas differential pressure and flow, and the sensor-based data of processing module are further processed, such as air velocity V can pass through flow
The methods of derivation obtains, ventilator air leakage VleakEstimation mode is by total flow and the pressure of adding up in a period of time (5-10S)
The root mean square of force value calculates the ratio between them, then obtains gas leakage multiplied by the ratio with the root mean square of real-time pressure again
Estimator.
Further, the intelligent start/stop device further includes intelligent stopping modular, if for judging to be currently at starting shape
State, and air leakage VleakIt is greater than δ with the difference of pressure difference P3Then intelligence stops.
Further, the first threshold δ of the intelligent starting module1For 15cm/s, second threshold δ2It is current to flow for 0cm/s
Fast V is greater than first threshold δ1Or it is less than second threshold δ2And the duration 2 seconds or more then start intelligent starting.
Further, the third threshold value δ of the intelligent stopping modular3It is 20, current differential pressure P and air leakage VleakDifference
Value is greater than third threshold value δ3And then start intelligent stopping more than for 10 seconds.
Further, described device further includes memory and processor, the memory for storing instruction, described instruction
It is operated for controlling the processor to execute the intelligent start/stop method described according to a first aspect of the present invention.
The present invention can be device, method and/or computer program product.Computer program product may include computer
Readable storage medium storing program for executing, containing for making processor realize the computer-readable program instructions of various aspects of the invention.
Computer readable storage medium, which can be, can keep and store the tangible of the instruction used by instruction execution equipment
Equipment.Computer readable storage medium for example can be-- but it is not limited to-- storage device electric, magnetic storage apparatus, optical storage
Equipment, electric magnetic storage apparatus, semiconductor memory apparatus or above-mentioned any appropriate combination.Computer readable storage medium
More specific example (non exhaustive list) includes: portable computer diskette, hard disk, random access memory (RAM), read-only deposits
It is reservoir (ROM), erasable programmable read only memory (EPROM or flash memory), static random access memory (SRAM), portable
Compact disk read-only memory (CD-ROM), digital versatile disc (DVD), memory stick, floppy disk, mechanical coding equipment, for example thereon
It is stored with punch card or groove internal projection structure and the above-mentioned any appropriate combination of instruction.Calculating used herein above
Machine readable storage medium storing program for executing is not interpreted that instantaneous signal itself, the electromagnetic wave of such as radio wave or other Free propagations lead to
It crosses the electromagnetic wave (for example, the light pulse for passing through fiber optic cables) of waveguide or the propagation of other transmission mediums or is transmitted by electric wire
Electric signal.
Computer-readable program instructions as described herein can be downloaded to from computer readable storage medium it is each calculate/
Processing equipment, or outer computer or outer is downloaded to by network, such as internet, local area network, wide area network and/or wireless network
Portion stores equipment.Network may include copper transmission cable, optical fiber transmission, wireless transmission, router, firewall, interchanger, gateway
Computer and/or Edge Server.Adapter or network interface in each calculating/processing equipment are received from network to be counted
Calculation machine readable program instructions, and the computer-readable program instructions are forwarded, for the meter being stored in each calculating/processing equipment
In calculation machine readable storage medium storing program for executing.
Computer program instructions for executing operation of the present invention can be assembly instruction, instruction set architecture (ISA) instructs,
Machine instruction, machine-dependent instructions, microcode, firmware instructions, condition setup data or with one or more programming languages
The source code or object code that any combination is write, the programming language include the programming language-of object-oriented such as
Smalltalk, C++ etc., and conventional procedural programming languages-such as " C " language or similar programming language.Computer
Readable program instructions can be executed fully on the user computer, partly execute on the user computer, be only as one
Vertical software package executes, part executes on the remote computer or completely in remote computer on the user computer for part
Or it is executed on server.In situations involving remote computers, remote computer can pass through network-packet of any kind
It includes local area network (LAN) or wide area network (WAN)-is connected to subscriber computer, or, it may be connected to outer computer (such as benefit
It is connected with ISP by internet).In some embodiments, by utilizing computer-readable program instructions
Status information carry out personalized customization electronic circuit, such as programmable logic circuit, field programmable gate array (FPGA) or can
Programmed logic array (PLA) (PLA), the electronic circuit can execute computer-readable program instructions, to realize each side of the invention
Face.
Referring herein to according to the method for the embodiment of the present invention, the flowchart and or block diagram of device and computer program product
Describe various aspects of the invention.It should be appreciated that each box and flowchart and or block diagram of flowchart and or block diagram
In each box combination, can be realized by computer-readable program instructions.
These computer-readable program instructions can be supplied to general purpose computer, special purpose computer or other programmable datas
The processor of processing unit, so that a kind of machine is produced, so that these instructions are passing through computer or other programmable datas
When the processor of processing unit executes, function specified in one or more boxes in implementation flow chart and/or block diagram is produced
The device of energy/movement.These computer-readable program instructions can also be stored in a computer-readable storage medium, these refer to
It enables so that computer, programmable data processing unit and/or other equipment work in a specific way, thus, it is stored with instruction
Computer-readable medium then includes a manufacture comprising in one or more boxes in implementation flow chart and/or block diagram
The instruction of the various aspects of defined function action.
Computer-readable program instructions can also be loaded into computer, other programmable data processing units or other
In equipment, so that series of operation steps are executed in computer, other programmable data processing units or other equipment, to produce
Raw computer implemented process, so that executed in computer, other programmable data processing units or other equipment
Instruct function action specified in one or more boxes in implementation flow chart and/or block diagram.
According to the third aspect of the invention we, the present invention also provides a kind of ventilators, including institute according to a second aspect of the present invention
The intelligent start/stop device stated.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of intelligent start/stop method, which is characterized in that the described method includes: step 1: acquire user terminal pressure signal and
Flow signal；Step 2: user terminal air velocity V, pressure difference P and air leakage are obtained according to flow signal and pressure signal respectively
Vleak；Step 3: if being currently at halted state, and flow velocity V is greater than first threshold δ1Or it is less than second threshold δ2Then start intelligence
It can starting.
2. intelligent start/stop method as described in claim 1, which is characterized in that in the step 3, if being currently at starting shape
State, and pressure difference P and air leakage VleakDifference be greater than δ3Then intelligence stops.
3. intelligent start/stop method as claimed in claim 2, which is characterized in that in the step 3, first threshold δ1For 15cm/
S, current flow V are greater than first threshold δ1And the duration 2 seconds or more then start intelligent starting.
4. intelligent start/stop method as claimed in claim 3, which is characterized in that in the step 3, second threshold δ2For 0cm/s,
Current flow V is less than second threshold δ2And the duration 2 seconds or more then start intelligent starting.
5. intelligent start/stop method as claimed in claim 4, which is characterized in that in the step 3, third threshold value δ3It is 20, leakage
Tolerance VleakIt is greater than third threshold value δ with the difference of current differential pressure P3And then start intelligent stopping more than for 10 seconds.
6. a kind of intelligent start/stop device, which is characterized in that described device includes acquisition module, and the pressure for acquiring user terminal is believed
Number and airflow signal；Processing module, for obtaining user terminal air velocity V, pressure difference respectively according to flow signal and pressure signal
P and air leakage Vleak；Intelligent starting module, if for judging to be currently at halted state, and flow velocity V is greater than first threshold
δ1Or it is less than second threshold δ2Then start intelligent starting.
7. intelligent start/stop device as claimed in claim 6, which is characterized in that the intelligent start/stop device further includes that intelligence stops mould
Block, if for judging to be currently at starting state, and air leakage VleakIt is greater than δ with the difference of current differential pressure P3Then Intelligent stop
Only.
8. intelligent start/stop device as claimed in claim 7, which is characterized in that the first threshold δ of the intelligent starting module1For
15cm/s, second threshold δ2It is greater than first threshold δ for 0cm/s, current flow V1Or it is less than second threshold δ2And the duration 2
Second or more then start intelligent starting.
9. intelligent start/stop device as claimed in claim 8, which is characterized in that the third threshold value δ of the intelligence stopping modular3For
20, air leakage VleakIt is greater than third threshold value δ with the difference of current differential pressure P3And then start intelligent stopping more than for 10 seconds.
10. a kind of ventilator, which is characterized in that including intelligent start/stop device described in any one of claim 6-9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910522719 | 2019-06-17 | ||
| CN2019105227194 | 2019-06-17 |
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| CN110496282B CN110496282B (en) | 2023-09-15 |
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| CN112546388A (en) * | 2020-12-04 | 2021-03-26 | 可孚医疗科技股份有限公司 | Self-adaptive pulse type oxygen generator and oxygen supply control method and device thereof |
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| CN110496282B (en) | 2023-09-15 |
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