CN106975135B - Method and device for air leakage compensation of respirator and noninvasive respirator - Google Patents
Method and device for air leakage compensation of respirator and noninvasive respirator Download PDFInfo
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- CN106975135B CN106975135B CN201710232700.7A CN201710232700A CN106975135B CN 106975135 B CN106975135 B CN 106975135B CN 201710232700 A CN201710232700 A CN 201710232700A CN 106975135 B CN106975135 B CN 106975135B
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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
- 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
Abstract
The embodiment of the invention discloses a method for compensating air leakage of a breathing machine, which is characterized in that the number of pressure difference values of a first pressure sensor and a second pressure sensor in a pressure difference threshold range at the same moment in a preset time period is counted, when a preset condition is met, the current breathing machine is judged to be in an air leakage state, then the output adjusting power of a fan is obtained according to the pressure difference values and the end point value of the pressure difference threshold range, and the output power of the fan is adjusted until the number of the pressure difference values in the pressure difference threshold range does not meet the preset condition in the preset time period. Can provide required tolerance for the user, satisfy user's breathing demand, improve the reliability and the stability of breathing machine, be favorable to improving respiratory disease patient's comfort level. In addition, the embodiment of the invention also provides a corresponding implementation device and a noninvasive ventilator, so that the method has higher practicability, and the device and the noninvasive ventilator have corresponding advantages.
Description
Technical field
The present embodiments relate to ventilator preparation technical fields, more particularly to a kind of side of ventilator leak compensation
Method, device and noninvasive ventilator.
Background technique
Ventilator increases pulmonary ventilation volume by a kind of normal physiologic respiration that can replace, control or change people, improves work of breathing
Can, mitigate respiratory power consumption, saves the device of heart reservation ability.Ventilator needs circuit sequentially progress to lung inflation, air-breathing
It is converted to exhaling, alveolar air is discharged and exhales and is converted to air-breathing, therefore the power of conveying gas can be provided by needing to have, instead of people
The work of body respiratory muscle；Certain respiratory rhythm, including respiratory rate and inspiratory/expiratory can be generated, to replace human body respiration maincenter mind
Through the function of dominating respiratory rhythm；Suitable tidal volume or minute ventilation can be provided, to meet the needs of respiratory metabolism；Supply
Gas by heating and humidifying, instead of human body nasal cavity function, and can supply higher than amount of oxygen contained in atmosphere, to improve suction
Enter oxygen concentration, improves oxygen and close.
Ventilator is connected by a hose and mask or nose cup with user, gas-pressurized is generated by blower, through pipe
Road is transported to Use of respirator person end, in Use of respirator person breathing, ventilator is moved according to the breathing for judge currently used person
Make, when being determined as aspiratory action, then provides a higher IPAP pressure, user is allowed to obtain enough tolerance；Work as judgement
When for expiration movement, then pressure is reduced to EPAP from IPAP, to allow the smooth exhaled gas of user.
Since ventilator provides gas-pressurized by blower, output pressure is carried out according to user's respiratory movement by solenoid valve
Exact value.Total evaluation usually is carried out to the use in one period, provided pressure can all meet in most of time
The demand of user, blower are in fixed rotating speed state, not will do it increase.But when maximum is not achieved in the pressure of gas outlet
Pressure value or gas outlet pressure can reach maximum pressure value, but solenoid valve has been switched on utmostly.The prior art
In, ventilator can not detect or detect gas leak phenomenon in time, thus can not make leak compensation response in time, to can not be
User provides required tolerance, and causing user to occur, tidal volume is relatively low, the situation of blood oxygen decline.
Therefore machine how is ensured respiration when gas leakage occurs, response is compensated in time, provides enough gas for user
Amount, is those skilled in the art's urgent problem to meet the respiratory demand of user.
Summary of the invention
The purpose of the embodiment of the present invention is that the method, apparatus and noninvasive ventilator of a kind of ventilator leak compensation are provided,
To solve the problems, such as that ventilator can not compensate response when gas leakage occurs in time, to provide enough gas for user
Amount, to meet the respiratory demand of user.
In order to solve the above technical problems, the embodiment of the present invention the following technical schemes are provided:
On the one hand the embodiment of the present invention provides a kind of method of ventilator leak compensation, comprising:
The first pressure sensor for being located at ventilator blower outlet side is obtained respectively, and is located in the ventilator outlet
The second pressure sensor at end, each pressure value within a preset period of time；
The first pressure sensor and the second pressure sensor are calculated in the pressure difference value of synchronization, and is united
Count number of each pressure difference value within the scope of threshold pressure difference；
When the number of the pressure difference value meets preset condition, according to each pressure within the scope of the threshold pressure difference
The endpoint value of difference and the threshold pressure difference range obtains the output adjustment power of the blower；
It is adjusted according to output power of the output adjustment power to the ventilator blower, until described default
In period, the number of the pressure difference value in the threshold pressure difference range is unsatisfactory for the preset condition.
Optionally, described that packet is adjusted according to output power of the output adjustment power to the ventilator blower
It includes:
When the output power of the ventilator blower according to the output adjustment power ascension, and presently described ventilator
When the output power of blower reaches peak power output threshold value, judge whether the output adjustment power is not more than adjustment power-threshold
Value；
When determining that the output adjustment power is not more than the adjustment power threshold, continue to adjust the ventilator blower
Output power until blower peak power output；When determining that the output adjustment power is greater than the adjustment power threshold,
The output power of the ventilator blower is then adjusted to blower minimum output power.
Optionally, when the output power of the ventilator blower according to the output adjustment power ascension, and current institute
When stating the output power of ventilator blower and reaching the blower peak power output, it is described according to the output adjustment power to institute
The output power for stating ventilator blower, which is adjusted, includes:
When the pressure value of the second pressure sensor is unable to satisfy user demand pressure value in preset time range, then
The output power of the ventilator blower is adjusted to blower minimum output power.
It is optionally, described and count number of each pressure difference value within the scope of threshold pressure difference are as follows:
The pressure difference value is counted less than 8cmH2The number of O, or
The pressure difference value is counted greater than 10cmH2The number of O.
Optionally, the number of the pressure difference value meets preset condition are as follows:
When the pressure difference value is less than 8cmH2The pressure value number got in the number of O, with the preset time period
Ratio be not less than 10%, then determine that the number of the pressure difference value meets preset condition；
When the pressure difference value is greater than 10cmH2The pressure value got in the number of O, with the preset time period
Several ratio is not less than 90%, then determines that the number of the pressure difference value meets preset condition.
Optionally, each pressure difference value and the threshold pressure difference model according within the scope of the threshold pressure difference
The endpoint value enclosed, the output adjustment power for obtaining the ventilator blower specifically include:
When the pressure difference value is less than 8cmH2When the number of O meets preset condition, calculates and be less than 8cmH2The pressure difference value of O
Average value, by the 8cmH2Output adjustment power of the difference of O and the average value as the blower；
When the pressure difference value is greater than 10cmH2When the number of O meets preset condition, calculates and be greater than 10cmH2The pressure difference of O
The average value of value, by the average value and the 10cmH2Output adjustment power of the difference of O as the blower.
Optionally, the peak power output threshold value is the 90% of the blower peak power output.
Optionally, the adjustment power threshold is 2cmH2O。
On the other hand the embodiment of the present invention provides a kind of device of ventilator leak compensation, comprising:
Pressure value module is obtained, for obtaining the first pressure sensor positioned at ventilator blower outlet side respectively, and
Positioned at the second pressure sensor in the ventilator outlet side, each pressure value within a preset period of time；
Pressure difference value module is calculated, for calculating the first pressure sensor and the second pressure sensor same
The pressure difference value at one moment, and count number of each pressure difference value within the scope of threshold pressure difference；
Adjustment power module is determined, for when the number of the pressure difference value meets preset condition, according to the pressure
The endpoint value of each pressure difference value and the threshold pressure difference range in poor threshold range, obtains the output tune of the blower
Whole power；
Adjust power of fan module, for according to the output adjustment power to the output power of the ventilator blower into
Row adjustment, until the number of the pressure difference value in the threshold pressure difference range is unsatisfactory for institute in the preset time period
State preset condition.
The embodiment of the invention also provides a kind of noninvasive ventilator, including pressure sensor, blower and as described above
The device of ventilator leak compensation.
The embodiment of the invention provides a kind of methods of ventilator leak compensation, same by counting in preset time period
When inscribe number of the pressure difference value in threshold pressure difference range of first pressure sensor and second pressure sensor, it is pre- when meeting
If when condition, then determining that current ventilator is in gas leakage state, then according to pressure difference value and the end of threshold pressure difference range
Point value obtains the output adjustment power of blower, is adjusted to the output power of blower, until within a preset period of time, being in
The number of the pressure difference value of threshold pressure difference range is unsatisfactory for preset condition.
The advantages of technical solution provided by the present application is, by obtain at fan outlet in real time pressure sensor with
The pressure difference value of the pressure sensor of ventilator complete machine gas outlet, timely judges whether current ventilator is in gas leakage state,
To make leak compensation response in time, required tolerance is provided for user, meets the respiratory demand of user, improves breathing
The reliability and stability of machine are conducive to the comfort level for improving respiratory disorder patient, are conducive to the treatment for improving respiratory disorder
Quality.
In addition, the embodiment of the present invention provides corresponding realization device and one also directed to the method for ventilator leak compensation
Kind noninvasive ventilator, further such that the method has more practicability, described device and noninvasive ventilator have corresponding excellent
Point.
Detailed description of the invention
It, below will be to embodiment or existing for the clearer technical solution for illustrating the embodiment of the present invention or the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is ventilator-structure schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram of ventilator leak compensation method provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of another ventilator leak compensation method provided in an embodiment of the present invention；
Fig. 4 is a kind of specific embodiment structure chart of ventilator leak compensation device provided in an embodiment of the present invention；
Fig. 5 is another specific embodiment structure chart of ventilator leak compensation device provided in an embodiment of the present invention；
Fig. 6 is a kind of specific embodiment structure chart of noninvasive ventilator provided in an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
The description and claims of this application and term " first ", " second ", " third " " in above-mentioned attached drawing
Four " etc. be for distinguishing different objects, rather than for describing specific sequence.Furthermore term " includes " and " having " and
Their any deformations, it is intended that cover and non-exclusive include.Such as contain a series of steps or units process, method,
System, product or equipment are not limited to listed step or unit, but may include the step of not listing or unit.
The structural schematic diagram of noninvasive ventilator is refering to Figure 1, blower 100 generates gas-pressurized, by a bit of pipe
Solenoid valve is reached behind road, on this section of pipeline, has a sensor 101 for detection pressure to be located at close to blower gas outlet
Position, acquisition be blower pressurization after gas pressure.After valve, there is an other Duan Guanlu, on this section of pipeline, distribution
Flow sensor 102 and another pressure sensor 103.Flow sensor 102 is located at the middle section of this section of pipeline, and acquisition is
Gas flow after solenoid valve, pressure sensor 103 are located at the gas outlet of complete machine, and acquisition is arrived after solenoid valve
Up to the pressure at gas outlet.
Present inventor has found after study, in the therapeutic process of ventilator, if there is pressure sensor 103
Collection value be consistent with expected treatment pressure value, but the difference between pressure sensor 101 and pressure sensor 103 is too low
The case where, then it may cause the state that solenoid valve is substantially at maximum opening, the gas in entire air flue is than sparse at this time
, therefore it will cause the lower situation of flow and occur, it is relatively low that specific reflection to patient then will appear tidal volume with it, under blood oxygen
The situation of drop.
In order to provide maximum tolerance to patient under same pressure, then needs to be promoted the revolving speed of blower, pressure is allowed to pass
Pressure at sensor 101 rises, so that the pressure difference between sensor 101 and sensor 103 increases, is accurately adjusted by solenoid valve
Pressure, so that gas outlet pressure is constant, but flow rises.
In consideration of it, the application by statistics preset time period (10s) in, under synchronization first pressure sensor 101 with
The pressure difference value of second pressure sensor 103 then determines current in the number of threshold pressure difference range when meeting preset condition
Ventilator is in gas leakage state, then according to pressure difference value and the endpoint value of threshold pressure difference range, obtains the defeated of blower 100
Power is adjusted out, the output power of blower 100 is adjusted, until within a preset period of time, being in threshold pressure difference range
The number of pressure difference value be unsatisfactory for preset condition.
It should be noted that above-mentioned application scenarios are merely for convenience of understanding the thought of the application and principle and showing, this
The embodiment of application is unrestricted in this regard.On the contrary, presently filed embodiment can be applied to it is applicable any
Scene.
After describing the technical solution of the embodiment of the present invention, the various non-limiting realities of detailed description below the application
Apply mode.
Referring first to Fig. 2, Fig. 2 is a kind of process signal of ventilator leak compensation method provided in an embodiment of the present invention
Figure, the embodiment of the present invention may include the following contents:
S201: the first pressure sensor for being located at ventilator blower outlet side is obtained respectively, and is located in the breathing
The second pressure sensor of machine outlet side, each pressure value within a preset period of time.
The collected pressure value of first pressure sensor is regarded as the corresponding pressure of output power of blower, and second presses
The collected pressure value of force snesor is regarded as the pressure that user currently experiences.
Preset time period can in 10s, can also for other any time, those skilled in the art can according to experience with
And specific actual conditions are chosen, the application is not limited in any way this.
It is carried out in the section of preset time, pressure sensor carries out acquisition pressure value, pressure by different sample frequencys
The sample frequency of sensor can be 500HZ, can also be any value in 100-1000HZ, this does not influence the realization of the application.
Preset time period and sample frequency determine the pressure data number obtained, for example, in 10s use process,
Data are acquired with 500HZ sample frequency, then can obtain 5000 data.
S202: the first pressure sensor and the second pressure sensor are calculated in the pressure difference of synchronization
Value, and count number of each pressure difference value within the scope of threshold pressure difference.
Since gas leakage will lead to the insufficient pressure of ventilator, therefore need to increase the output power (revolving speed) of blower, to guarantee
User has enough oxygen flows.But in use, when power of fan is boosted to get on, and user passes through
Adjustment is crossed so that gas leakage restores normal, blower just belongs to excessive output state at this time, so that the usage comfort of user is influenced,
Therefore it needs gradually to reduce the output power of blower.
Therefore, the two factor can be comprehensively considered for the leak compensation effect of blower, therefore in both judgements pressure difference value,
Need first to carry out judging which threshold range is difference be in.Threshold pressure difference range may be less than 8cmH2O, or be greater than
10cmH2O can also be certainly other any values, this does not influence the realization of the application.It, can therefore when carrying out statistics number
It is less than 8cmH for statistics pressure difference value2The number of O, or statistics pressure difference value are greater than 10cmH2The number of O.
S203: when the number of the pressure difference value meets preset condition, according to each within the scope of the threshold pressure difference
The endpoint value of a pressure difference value and the threshold pressure difference range obtains the output adjustment power of the ventilator blower.
Judge whether the number of pressure difference value meets preset condition, it can are as follows:
When the pressure difference value is less than 8cmH2The pressure value number got in the number of O, with the preset time period
Ratio be not less than 10%, then determine that the number of the pressure difference value meets preset condition；
When the pressure difference value is greater than 10cmH2The pressure value got in the number of O, with the preset time period
Several ratio is not less than 90%, then determines that the number of the pressure difference value meets preset condition.
For example, when the sample frequency of pressure sensor is that 500HZ can acquire 5000 in the time span of 10S
Data, as the pressure difference value ▽ P ﹤ 8cmH of the two2When O, an insufficient pressure is recorded, is occurred about when in 5000 data
When the record of 50 insufficient pressures, then determine to meet preset condition；When there is ▽ P ﹥ 10cmH2When O, a pressure is recorded
It is excessively high, when in 5000 data 90% statistics indicate that hypertonia, then determine to meet preset condition.
Certainly, the ratio of the number and the data amount check got in total that meet condition can not also be 10% and 90%,
Those skilled in the art can choose according to experience and specific actual conditions, and the application is not limited in any way this.
For being calculated according to the endpoint value of each pressure difference value within the scope of threshold pressure difference and threshold pressure difference range
The output adjustment power of blower can are as follows:
When the pressure difference value is less than 8cmH2When the number of O meets preset condition, calculates and be less than 8cmH2The pressure difference value of O
Average value, by the 8cmH2Output adjustment power of the difference of O and the average value as the blower；
When the pressure difference value is greater than 10cmH2When the number of O meets preset condition, calculates and be greater than 10cmH2The pressure difference of O
The average value of value, by the average value and the 10cmH2Output adjustment power of the difference of O as the blower.
For example, the pressure difference value of the two is ▽ P, and blower output adjustment power is OP.As ▽ P ﹤ 8cmH2O then needs
The output power for improving blower, the average value MP of ▽ P when can calculate whole insufficient pressures, circular can be MP=
(∑ ▽ P)/N, wherein N indicates the number for meeting preset condition, N > 50.It obtains MP and then calculates between MP and 8cmH2O
Gap, then OP=8-MP；As ▽ P > 10cmH2O then needs to reduce the output power of blower, can calculate whole hypertonia
When ▽ P average value MP, circular can be MP=(∑ ▽ P)/N, then OP=MP-10.
S204: being adjusted according to output power of the output adjustment power to the ventilator blower, until in institute
It states in preset time period, the number of the pressure difference value in the threshold pressure difference range is unsatisfactory for the preset condition.
The output adjustment power found out according to S203, is adjusted the output power of blower, before, needs first to be sentenced
It is disconnected, it is hoisting power or reduction power.
It should be noted that after once adjust to blower, after increasing or decreasing blower output power value, it is also necessary to
Continue the judgement of S203, secondary adjustment is then carried out again to the output power of blower, until meeting threshold pressure difference range
Until the number of interior pressure value is unsatisfactory for preset condition.
In technical solution provided by the present application, by obtaining pressure sensor and ventilator at fan outlet in real time
The pressure difference value of the pressure sensor of complete machine gas outlet, timely judges whether current ventilator is in gas leakage state, thus and
When make leak compensation response, required tolerance is provided for user, meets the respiratory demand of user, that improves ventilator can
By property and stability, be conducive to the comfort level for improving respiratory disorder patient, be conducive to the therapeutic quality for improving respiratory disorder.
Since the influence of environmental factor, such as gas outlet are opened wide completely, sensor blocking or failure etc., at this point, blower
Revolving speed needs to accelerate, and power needs to improve, and the number of the pressure difference value within the scope of the threshold pressure difference be unsatisfactory for always it is pre-
If condition, then it will lead to power of fan and infinitely rise, blower output pressure may finally be caused excessively high, blower overheat is even damaged
The problems such as occur, therefore also need to limit the maximum power of blower, while providing the defencive function to blower, in view of
This, based on the above embodiment, present invention also provides another embodiments, specifically can include:
S205: when the output power of presently described ventilator blower reaches peak power output threshold value, judge described defeated
Whether adjustment power is not more than adjustment power threshold out；
The peak power output of blower determines that peak power output threshold value can by the parameter and actual conditions of blower itself
It is the 90% of the blower peak power output.
Adjusting power threshold can be 2cmH2O can also be other values, this does not influence the realization of the application.
S206: when determining that the output adjustment power is not more than the adjustment power threshold, continue to adjust the breathing
The output power of machine blower is until blower peak power output；
S207: when determining that the output adjustment power is greater than the adjustment power threshold, then by the ventilator blower
Output power be adjusted to blower minimum output power.
The minimum output power of blower is determined by the parameter and actual conditions of blower itself.
In addition, when according to the output power of output adjustment power ascension ventilator blower, and current ventilator blower
When output power reaches the blower peak power output, for some reason, lead to the pressure within the scope of threshold pressure difference
The number of power difference is unsatisfactory for always preset condition, and in order to avoid blower output pressure is excessively high, blower overheat even damage etc. is asked
Topic occurs, and the application is based on one embodiment and additionally provides one embodiment.
S205: judge whether the pressure value of second pressure sensor meets user demand pressure in preset time range
Value；
Preset time range can be the time for being more than 50% during ventilator single use, can also be other times section.
For example, in the use process in 10s, if there is to be all unable to satisfy user required for 5s or more the pressure value exported, then
Illustrate that ventilator can not meet the respiratory demand of user by compensation output power.
S206: when the pressure value for determining the second pressure sensor is unable to satisfy user demand in preset time range
The output power of the ventilator blower is then adjusted to blower minimum output power by pressure value.
In this case, ventilator is there may be other problems, in order to guarantee treatment experience that user is got well, needs
It is reminded in time, to prompt relevant staff to take certain measure.
It can be by issuing the alarm of a hypotony for reminding user that treatment at this time has been unable to reach expection.
The embodiment of the present invention provides corresponding realization device also directed to ventilator leak compensation method, further such that institute
Method is stated with more practicability.Device provided in an embodiment of the present invention is introduced below, ventilator leakage described below
The device of gas compensation can correspond to each other reference with the method for above-described ventilator leak compensation.
Referring to fig. 4, Fig. 4 is ventilator leak compensation device provided in an embodiment of the present invention under a kind of specific embodiment
Structure chart, the device can include:
Pressure value module 401 is obtained, for obtaining the first pressure sensor positioned at ventilator blower outlet side respectively, with
And positioned at the second pressure sensor in the ventilator outlet side, each pressure value within a preset period of time.
Pressure difference value module 402 is calculated, for calculating the first pressure sensor and the second pressure sensor
In the pressure difference value of synchronization, and count number of each pressure difference value within the scope of threshold pressure difference.
Adjustment power module 403 is determined, for when the number of the pressure difference value meets preset condition, according to the pressure
The endpoint value of each pressure difference value and the threshold pressure difference range in power difference threshold range, obtains the ventilator blower
Output adjustment power.
Power of fan module 404 is adjusted, for the output work according to the output adjustment power to the ventilator blower
Rate is adjusted, until the number of the pressure difference value in the threshold pressure difference range is discontented in the preset time period
The foot preset condition.
Optionally, in some embodiments of the present embodiment, referring to Fig. 5, described device for example can also include:
First judgment module 405, for the output work when the ventilator blower according to the output adjustment power ascension
When rate, and when the output power of presently described ventilator blower reaches peak power output threshold value, the output adjustment function is judged
Whether rate is not more than adjustment power threshold；When determining that the output adjustment power is not more than the adjustment power threshold, continue
The output power of the ventilator blower is adjusted until blower peak power output；When the judgement output adjustment power is greater than institute
When stating adjustment power threshold, then the output power of the ventilator blower is adjusted to blower minimum output power.
In another specific embodiment, referring to Fig. 5, described device is for example further include:
Second judgment module 406 in preset time range can not for the pressure value when the second pressure sensor
Meet user demand pressure value, then the output power of the ventilator blower is adjusted to blower minimum output power.
The function of each functional module of ventilator leak compensation device described in the embodiment of the present invention can be according to above method reality
The method specific implementation in example is applied, specific implementation process is referred to the associated description of above method embodiment, herein no longer
It repeats.
From the foregoing, it will be observed that the embodiment of the present invention is located at pressure sensor and ventilator complete machine at fan outlet by obtaining in real time
The pressure difference value of the pressure sensor of gas outlet, timely judges whether current ventilator is in gas leakage state, to make in time
Leak compensation responds out, and required tolerance is provided for user, meets the respiratory demand of user, improves the reliability of ventilator
And stability, be conducive to the comfort level for improving respiratory disorder patient, be conducive to the therapeutic quality for improving respiratory disorder.
The embodiment of the invention also provides a kind of noninvasive ventilators, refer to Fig. 6, it may include pressure sensor 601, blower
602 and ventilator leak compensation as described above device 603.
Pressure sensor 601 for acquiring the pressure value of breathing machine pipeline, blower gas outlet and complete machine gas outlet in real time.
Blower 602 is used to provide pressure for ventilator.
The function of the device 603 of ventilator leak compensation and specific implementation please refer to above-described embodiment, just no longer superfluous herein
It states.
Certainly, the noninvasive ventilator further includes other elements, such as flow sensor, is not described in more detail here.
The function of each functional module of noninvasive ventilator described in the embodiment of the present invention can be according in above method embodiment
Method specific implementation, specific implementation process are referred to the associated description of above method embodiment, and details are not described herein again.
From the foregoing, it will be observed that the embodiment of the present invention is located at pressure sensor and ventilator complete machine at fan outlet by obtaining in real time
The pressure difference value of the pressure sensor of gas outlet, timely judges whether current ventilator is in gas leakage state, to make in time
Leak compensation responds out, and required tolerance is provided for user, meets the respiratory demand of user, improves the reliability of ventilator
And stability, be conducive to the comfort level for improving respiratory disorder patient, be conducive to the therapeutic quality for improving respiratory disorder.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part
Explanation.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The method, apparatus and noninvasive ventilator of a kind of ventilator leak compensation provided by the present invention are carried out above
It is discussed in detail.Used herein a specific example illustrates the principle and implementation of the invention, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the common skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for art personnel, these change
It is also fallen within the protection scope of the claims of the present invention into modification.
Claims (10)
1. a kind of method of ventilator leak compensation characterized by comprising
The first pressure sensor for being located at ventilator blower outlet side is obtained respectively, and positioned in the ventilator outlet side
Second pressure sensor, each pressure value within a preset period of time；
The first pressure sensor and the second pressure sensor are calculated in the pressure difference value of synchronization, and counts each
Number of a pressure difference value within the scope of threshold pressure difference；
When the number of the pressure difference value meets preset condition, according to each pressure difference value within the scope of the threshold pressure difference
And the endpoint value of the threshold pressure difference range, obtain the output adjustment power of the ventilator blower；
It is adjusted according to output power of the output adjustment power to the ventilator blower, until in the preset time
In section, the number of the pressure difference value in the threshold pressure difference range is unsatisfactory for the preset condition.
2. the method according to claim 1, wherein it is described according to the output adjustment power to the ventilator
The output power of blower, which is adjusted, includes:
When the output power of the ventilator blower according to the output adjustment power ascension, and presently described ventilator blower
Output power when reaching peak power output threshold value, judge whether the output adjustment power is not more than adjustment power threshold；
When determining that the output adjustment power is not more than the adjustment power threshold, continue to adjust the defeated of the ventilator blower
Power is until blower peak power output out；When determining that the output adjustment power is greater than the adjustment power threshold, then will
The output power of the ventilator blower is adjusted to blower minimum output power.
3. according to the method described in claim 2, it is characterized in that, when the ventilator according to the output adjustment power ascension
When the output power of blower, and when the output power of presently described ventilator blower reaches the blower peak power output, institute
It states to be adjusted according to output power of the output adjustment power to the ventilator blower and includes:
When the pressure value of the second pressure sensor is unable to satisfy user demand pressure value in preset time range, then by institute
The output power for stating ventilator blower is adjusted to blower minimum output power.
4. according to claim 1 to method described in 3 any one, which is characterized in that each pressure difference value of statistics
Number within the scope of threshold pressure difference are as follows:
The pressure difference value is counted less than 8cmH2The number of O, or
The pressure difference value is counted greater than 10cmH2The number of O.
5. according to the method described in claim 4, it is characterized in that, the number of the pressure difference value meets preset condition are as follows:
When the pressure difference value is less than 8cmH2The ratio of the pressure value number got in the number of O, with the preset time period
Value is not less than 10%, then determines that the number of the pressure difference value meets preset condition；
When the pressure difference value is greater than 10cmH2The ratio of the pressure value number got in the number of O, with the preset time period
Value is not less than 90%, then determines that the number of the pressure difference value meets preset condition.
6. according to the method described in claim 5, it is characterized in that, each pressure according within the scope of the threshold pressure difference
The endpoint value of power difference and the threshold pressure difference range, the output adjustment power for obtaining the ventilator blower specifically wrap
It includes:
When the pressure difference value is less than 8cmH2When the number of O meets preset condition, calculates and be less than 8cmH2The pressure difference value of O is put down
Mean value, by the 8cmH2Output adjustment power of the difference of O and the average value as the blower；
When the pressure difference value is greater than 10cmH2When the number of O meets preset condition, calculates and be greater than 10cmH2The pressure difference value of O
Average value, by the average value and the 10cmH2Output adjustment power of the difference of O as the blower.
7. according to the method described in claim 2, it is characterized in that, the peak power output threshold value is that the blower maximum is defeated
The 90% of power out.
8. the method according to the description of claim 7 is characterized in that the adjustment power threshold is 2cmH2O。
9. a kind of device of ventilator leak compensation characterized by comprising
Pressure value module is obtained, for obtaining the first pressure sensor positioned at ventilator blower outlet side respectively, and is located at
Second pressure sensor in the ventilator outlet side, each pressure value within a preset period of time；
Pressure difference value module is calculated, for calculating the first pressure sensor and the second pressure sensor in same a period of time
The pressure difference value at quarter, and count number of each pressure difference value within the scope of threshold pressure difference；
Adjustment power module is determined, for when the number of the pressure difference value meets preset condition, according to the pressure difference threshold
It is worth the endpoint value of each pressure difference value and the threshold pressure difference range in range, obtains the output of the ventilator blower
Adjust power；
Power of fan module is adjusted, for adjusting according to output power of the output adjustment power to the ventilator blower
It is whole, until the number of the pressure difference value in the threshold pressure difference range is unsatisfactory for described pre- in the preset time period
If condition.
10. a kind of noninvasive ventilator, including pressure sensor and blower, which is characterized in that further include as claimed in claim 9
Ventilator leak compensation device.
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| CN201710232700.7A CN106975135B (en) | 2017-04-11 | 2017-04-11 | Method and device for air leakage compensation of respirator and noninvasive respirator |
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| CN108287043B (en) * | 2017-12-29 | 2020-03-10 | 湖南明康中锦医疗科技发展有限公司 | Breathing machine air leakage detection method and device, storage medium and computer equipment |
| CN111529980B (en) * | 2020-04-28 | 2022-03-01 | 上海医盾医疗科技有限公司 | Control system of disposable air filtering respirator |
| CN112012906A (en) * | 2020-09-03 | 2020-12-01 | 中山大学附属第六医院 | Electric medical air pump with pressure monitoring system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448530A (en) * | 2009-06-03 | 2012-05-09 | 皇家飞利浦电子股份有限公司 | System and method for controlling leakage of a circuit delivering a pressurized flow of breathable gas to a subject |
| CN103071213A (en) * | 2011-10-25 | 2013-05-01 | 北京航天长峰股份有限公司 | Leakage compensation method for single-loop non-invasive ventilators |
| CN103977492A (en) * | 2014-05-29 | 2014-08-13 | 北京航空航天大学 | Method for estimating capacity control ventilation air leakage based on pressure waveform |
| CN104080503A (en) * | 2011-12-27 | 2014-10-01 | 皇家飞利浦有限公司 | Compensation of breath delivery |
| CN105963835A (en) * | 2016-04-21 | 2016-09-28 | 广州七喜医疗设备有限公司 | VCV (volume-controlled ventilation) gas leakage compensating method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10207069B2 (en) * | 2008-03-31 | 2019-02-19 | Covidien Lp | System and method for determining ventilator leakage during stable periods within a breath |
-
2017
- 2017-04-11 CN CN201710232700.7A patent/CN106975135B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448530A (en) * | 2009-06-03 | 2012-05-09 | 皇家飞利浦电子股份有限公司 | System and method for controlling leakage of a circuit delivering a pressurized flow of breathable gas to a subject |
| CN103071213A (en) * | 2011-10-25 | 2013-05-01 | 北京航天长峰股份有限公司 | Leakage compensation method for single-loop non-invasive ventilators |
| CN104080503A (en) * | 2011-12-27 | 2014-10-01 | 皇家飞利浦有限公司 | Compensation of breath delivery |
| CN103977492A (en) * | 2014-05-29 | 2014-08-13 | 北京航空航天大学 | Method for estimating capacity control ventilation air leakage based on pressure waveform |
| CN105963835A (en) * | 2016-04-21 | 2016-09-28 | 广州七喜医疗设备有限公司 | VCV (volume-controlled ventilation) gas leakage compensating method |
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Address after: 410205 Room 101, 1st floor, north of superstar entrepreneurship base, No. 8 Lujing Road, high tech Development Zone, Changsha, Hunan Patentee after: Hunan Mingkang Zhongjin Medical Technology Co.,Ltd. Address before: 410000 101, North 1st floor, giant star entrepreneurship base, No. 8 Lujing Road, high tech Development Zone, Changsha City, Hunan Province Patentee before: HUNAN MICOME ZHONGJIN MEDICAL SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |