CN108744190A - A kind of with target blood oxygen levels is the intelligent oxygen therapy system being precisely controlled a little - Google Patents
A kind of with target blood oxygen levels is the intelligent oxygen therapy system being precisely controlled a little Download PDFInfo
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- CN108744190A CN108744190A CN201810305140.8A CN201810305140A CN108744190A CN 108744190 A CN108744190 A CN 108744190A CN 201810305140 A CN201810305140 A CN 201810305140A CN 108744190 A CN108744190 A CN 108744190A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3327—Measuring
-
- 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
Abstract
It with target blood oxygen levels is the intelligent oxygen therapy system being precisely controlled a little that the present invention, which proposes a kind of, is mainly made of control system, oxygen saturation monitor module, flow control valve, flow measurement module, optical sensor, human-computer interaction interface, communication module.According to patient characteristic target blood oxygen levels are set in human-computer interaction interface, after doctor's advice flow value and oxygen uptake duration, control system is according to the control algolithm intelligent control oxygen therapy working condition being previously written, judge the identical state of dynamic blood oxygen levels and target blood oxygen levels, when dynamic blood oxygen levels deviate target blood oxygen control interval value and reach intervention control time, control system is in flow correction section, according to flow correction gradient adjust automatically output flow, to make patient's dynamic blood oxygen levels be precisely controlled in target blood oxygen control interval value, improve validity and the safety of oxygen therapy.
Description
Technical field
It is the intelligent oxygen therapy system being precisely controlled a little that the present invention relates to a kind of with target blood oxygen levels, belongs to clinical oxygen inhalation therapy
When the medical instrument that uses.
Background technology
Oxygen inhalation therapy（Referred to as " oxygen therapy "）It is one of the most commonly used rescue of hospital or treatment means, the purpose is to by giving
Patient's oxygen uptake improves the dynamic blood oxygen levels of patient and is stably held in reasonable interval, and oxygen closes not caused by correcting a variety of causes
Normal condition maintains body vital movement.Country's oxygen therapy is substantially at a kind of state without ready patterns to follow, or even most medical cares at present
Personnel are also considered as that oxygen therapy is useful and harmless, and more therapeutic effects that oxygen is given are better, in clinical practice in most cases oxygen therapy without tight
The doctor's advice of lattice.Entire process of oxygen therapy lacks strict monitoring and necessary flow regulating measures, is not provided having doctor's advice
Specific oxygen therapy target blood oxygen levels, this clinical status will necessarily influence the therapeutic effect of patient, can not also ensure the peace of oxygen therapy
Full property even causes serious adverse consequences（Such as various types oxygen poisoning or increase the death rate）.
Target blood oxygen levels refer to the ideal blood oxygen levels that the patient should reach in process of oxygen therapy, that is, to patient's oxygen therapy phase
Hope the therapeutic purpose realized.This concept of target blood oxygen levels is by association of division of chest disease of Britain (BTS）Acute disease oxygen therapy guide（2008 editions）In
It takes the lead in proposing, and suggests for the first time using blood oxygen levels as " the 5th vital signs " except heartbeat, breathing, blood pressure and pulse, it should
Guide proposes to need to define the target blood oxygen levels clearly treated when oxygen therapy, and suggests to monitor and stablizing keeping target blood oxygen
Value.Although existing multi-parameter monitor, pulse blood oxygen instrument etc. can effectively monitor dynamic blood oxygen levels, controlled since oxygen exports
Be with its independent system mutually, therefore can not effectively realize that the control of target blood oxygen levels is protected with stablizing in oxygen therapy clinical practice
It holds.
Invention content
It with target blood oxygen levels is the intelligent oxygen therapy system being precisely controlled a little that the present invention, which proposes a kind of, is by control mainly
System, oxygen saturation monitor module, flow control valve, flow measurement module, optical sensor, human-computer interaction interface, communication module composition,
It is characterized in that：Control algolithm is equipped in control system, control algolithm establishing element includes and is not limited to target blood oxygen levels, target
Blood oxygen allows deviation value, doctor's advice flow value, intervention control time, flow correction section, flow correction gradient, human-computer interaction interface
At least should include target blood oxygen levels set key, oxygen uptake duration set key, flow set key.
The control system is based on using programmable logic controller (PLC)（PLC）/ or single chip foundation on develop
Integrated circuit, control system and oxygen saturation monitor module, flow control valve, flow measurement module, optical sensor, communication module
Etc. unicom, cooperate.
The oxygen saturation monitor module mainly calculates module composition, the dynamic for monitoring patient by blood oxygen probe, blood oxygen
Blood oxygen levels, pulse frequency, perfusion index（PI）.Certainly, it can also be embedded in probe for detecting temperature etc. in oxygen saturation monitor module, realize patient's arteries and veins
It fights, the multi-parameters dynamic monitoring such as dynamic blood oxygen levels, body temperature.
The flow control valve is used for the adjusting of oxygen flow size, and flow control valve is divided into according to control mode difference
It adjusts manually and two kinds of automatic adjustment.Using electronic flow control valve in the present invention, the instruction provided according to control system
Realize the automatic adjustment of uninterrupted, the work such as valve opening, flow adjustment, valve closing that executive control system provides refer to
It enables.
The flow measurement module is used for the monitoring and metering of output flow in oxygen therapy, may be used including and is not limited to
The technologies such as flow sensor, float type or proportioning valve are measured.
The optical sensor is strong and weak for monitoring ambient enviroment light, realizes the automatic adjustment of screen intensity, makes oxygen
Display interface brightness automatically controls during treatment, and light influences by force very much patient's rest when avoiding night.
Operation and control of the human-computer interaction interface for the present invention, generally use liquid crystal display/function key combination are constituted.
Human-computer interaction interface at least should include target blood oxygen levels set key, oxygen uptake duration set key, flow set key；Target blood oxygen levels are set
It sets key, oxygen uptake duration set key, flow set key to be made of Lineside encoding unit, by rotating left and right the fast velocity modulation of coder mode
Section and setting relevant parameter.
Monitoring-information, information warning etc. of the communication module for monitoring data, analysis synthesis are sent remotely to cure
Learn monitoring terminal.Communication module includes but not limited to the technical approach such as wire transmission, bluetooth, WiFi or RF.
Control algolithm establishing element include and be not limited to target blood oxygen levels, target blood oxygen allow deviation value, doctor's advice flow value,
Oxygen uptake duration, intervention control time, flow correction section, flow correction gradient.
The expectation that the target blood oxygen levels define when referring to oxygen therapy reaches and stablizes the blood oxygen levels of holding, that is, this
The therapeutic treatment target reached for the expectation that patient individual difference provides when oxygen therapy, rather than fuzzy, broad sense a peace
Full interval value（Such as 88%-98%）, control system of the present invention is using the target blood oxygen levels of this personalization as core control point, in fact
Now it is precisely controlled oxygen therapy.Target blood oxygen levels must carry out personalized setting, different patients, phase according to each patient's states when oxygen therapy
The target blood oxygen levels defined in different treatment stages with patient are also not quite similar.Since the dynamic blood oxygen levels of human body exist centainly
Unstability, therefore, the target blood oxygen levels provided, which are equipped with, allows deviation value, and target blood oxygen allows deviation value to exist+1%~+Between 3%
Definition, Preferable scheme is that target blood oxygen permission deviation value is+1%.Target blood oxygen allows deviation value to be written in control algolithm, only
Target blood oxygen levels are set in human-computer interaction interface, control system, which just can be calculated voluntarily, provides target blood oxygen control interval value.It lifts
Example explanation, the target blood oxygen levels that this oxygen therapy is set are as 95%, the deviation value of permission+1%, then target blood oxygen control interval value
Between 94%~96%, when oxygen therapy, corrects oxygen output flow as control targe automatically, and dynamic blood oxygen levels is made not break through
The upper limit or lower limit of target blood oxygen control interval value.
When the doctor's advice flow value is oxygen therapy medical staff set flow value, that is, this oxygen therapy initial flow
Value.Doctor's advice flow value is set in human-computer interaction interface, generally with minute（L/min) it is unit.Clinically doctor's advice flow is usually set
Be set to three low discharge, middle flow, high flow capacity sections, usually by 0.5L/min~2L/min be defined as low discharge, 3L/min~
4L/min is middle flow, 5L/min~8L/min is high flow capacity, and 8L/min or more is ultra high flux.
The intervention control time be dynamic blood oxygen levels deviate target blood oxygen control interval value when, control system intervention adjust
The response time of whole oxygen output flow, generally with minute（min）For unit, intervention control time is set between 0~30min
It is fixed；Preferable scheme is that：It is according to calculating, when dynamic blood oxygen levels are more than that control time, which is intervened, with the stabilization time of dynamic blood oxygen levels
Target blood oxygen control interval value and when 1~5min of the in stable condition holding, control system reduces oxygen output flow, when dynamic
For blood oxygen levels less than target blood oxygen control interval value and the in stable condition holding and when keeping 0.5~3min, control system increases oxygen
Gas output flow.For example, the target blood oxygen levels that set of this oxygen therapy is 95%, target blood oxygen allows to deviate in control system
Value is+1%, intervention control time is 1min, then when dynamic blood oxygen levels are between 94%-96% in oxygen therapy, maintains doctor's advice flow
Value, when dynamic blood oxygen levels are more than the 96% and in stable condition holding 1min, control system reduces oxygen output flow automatically；When
For dynamic blood oxygen levels less than 94% and when stablizing holding 1min, control system is automatically increased oxygen output flow.
In clinical practice, the oxygen therapy flow rate zone value that different patients are applicable in is different.Therefore, in order to ensure oxygen therapy
Safety, control algolithm is according to the corresponding flow correction section of doctor's advice flow value Auto-matching of setting, control system intervention oxygen
When gas output flow automatically adjusts, the upper and lower bound of output flow is strict controlled in flow correction section, is automatically adjusted
Shi Buyu is broken through.Flow correction section is divided into low discharge area, middle flow area, the adjusting section of high traffic areas three, specially：Low stream
When measuring oxygen therapy（Between doctor's advice flow value 0.5L/min~2L/min）, flow correction section definition is 0.1L/min~2L/min,
When middle flow oxygen therapy（Doctor's advice flow value 3L/min~4L/min）, flow correction section definition is 0.1L/min~4L/min, high
When flow oxygen therapy（Doctor's advice flow value 5L/min~8L/min）, flow correction section definition is 0.1L/min~8L/min.Flow
It corrects in section write-in control algolithm, as long as setting doctor's advice flow value, control system Auto-matching pair in human-computer interaction interface
The flow correction section answered, the upper and lower bound of output flow is strict controlled in flow correction section.
The flow correction gradient is to adjust the flow value for increasing or reducing each time when intervening flow-rate adjustment, is being limited
Oxygen flow correct section in, flow correction gradient is defined as between 0.1L/min~1L/min, it is preferred that flow correction
Gradient is defined as 0.25L/min~0.5L/min.
The oxygen uptake duration is the time of the oxygen therapy start to finish of medical staff's setting, generally with hour（h）For list
Position.Oxygen therapy duration is set in human-computer interaction interface, and control system provides closing oxygen output order after reaching oxygen uptake duration,
Flow control valve is closed, this oxygen therapy terminates.
The present invention working method be：By in control algolithm element target blood oxygen allow deviation value, intervention control time,
Flow correction section, flow correction gradient design parameter be previously written in control system, target blood oxygen levels, doctor's advice flow value with
Oxygen uptake duration is set according to patient's states in human-computer interaction interface personalization；Target blood oxygen allows deviation value+1%~+It is fixed between 3%
Justice defines between intervention control time 0~3min；Flow correction section is in low discharge oxygen therapy（Doctor's advice flow value 0.5L/min~
2L/min）When be defined as 0.1L/min~2L/min, middle flow oxygen therapy（Doctor's advice flow value 3L/min~4L/min）When be defined as
0.1L/min~4L/min, high flow capacity oxygen therapy（Doctor's advice flow value 5L/min~8L/min）When be defined as 0.1L/min~8L/
min；It is defined between flow correction gradient 0.1L/min~1L/min.In application oxygen therapy of the present invention, as long as medical staff is in people
In machine interactive interface after setting target blood oxygen levels, control system defines the target blood oxygen control interval value of the patient automatically；Setting
After doctor's advice flow value, control system defines that flow correction section, flow correction section are divided into low discharge area, middle flow automatically
Area, the adjusting section of high traffic areas three；After setting oxygen time length, oxygen therapy terminates flow control valve and is automatically closed.And oxygen therapy
Oxygen saturation monitor module continuously monitors the dynamic blood oxygen levels of patient in the process, when patient's dynamic blood oxygen levels are stably held in target blood oxygen
Doctor's advice flow value is maintained to export oxygen when in control interval value；When dynamic blood oxygen levels be more than the target blood oxygen control interval value upper limit simultaneously
And reach intervention control time, output flow is reduced automatically in flow correction section, according to flow correction gradient；When dynamic blood
Oxygen value is less than target blood oxygen control interval value lower limit and reaches intervention control time, in flow correction section, according to flow
Modifying gradient is automatically increased output flow, to make patient's dynamic blood oxygen levels be stably held in target blood oxygen control interval value,
Achieve the purpose that be precisely controlled oxygen therapy；When by adjusting oxygen output to maximum value or minimum value, but the dynamic blood of patient
When oxygen value still deviates target blood oxygen control interval value, control system provides information warning, and medical staff is prompted manually to be done
In advance, information warning is prompted in human-computer interaction interface or remote transmission is to nursing terminal.During oxygen therapy, if oxygen saturation monitor module
When operation irregularity, including and blood oxygen probe is not limited to from monitoring position falls off, blood oxygen probe damages, blood oxygen levels can not be obtained normally
Output flow value is restored to initially set doctor's advice flow value automatically Deng, control system, stops automatic intervention and adjusts output stream
Amount avoids that security risk occurs.
The parameter setting range of each establishing element of control algolithm Preferable scheme is that：The mesh being previously written in the controls
Marking blood oxygen permission deviation value is+1%, intervention control time is fixed by 0.5min by 3min definition, increase flow when reducing flow
Justice；Flow correction section is in low discharge oxygen therapy（Between 0.5L/min~2L/min）When be defined as 0.5L/min~2L/min, in
Flow oxygen therapy（3L/min~4L/min）When be defined as 0.5L/min~4L/min, high flow capacity oxygen therapy（5L/min~8L/min）When
It is defined as 1L/min~8L/min；Flow correction gradient is 0.5L/min；Target blood oxygen levels, doctor's advice flow value, oxygen therapy duration root
It is set in human-computer interaction interface personalization according to patient individual difference and degree of oxygen deficiency.
Further, the control algolithm of medically common oxygen therapy scheme is written in control system control algolithm, medical care
As long as personnel interpersonal interactive interface set target blood oxygen levels, control system provide automatically oxygen uptake flow value, oxygen uptake duration etc. its
His element selects to apply for medical staff；Certainly according to patient individual difference, medical staff can be in human-computer interaction interface to control
The design parameters such as oxygen uptake flow value, oxygen uptake duration that system processed provides are modified, provide more optimize safety personalization control
Treatment scheme.
The beneficial effects of the invention are as follows：According to patient characteristic in human-computer interaction interface setting target blood oxygen levels, doctor's advice flow
For value with after oxygen uptake duration, control system judges dynamic blood according to the control algolithm intelligent control oxygen therapy working condition being previously written
The identical state of oxygen value and target blood oxygen levels, when dynamic blood oxygen levels deviate target blood oxygen control interval value and reach intervention control
When the time, control system in flow correction section, according to flow correction gradient adjust automatically output flow, to keep patient dynamic
State blood oxygen levels are precisely controlled in target blood oxygen control interval value, improve validity and the safety of oxygen therapy.
Description of the drawings
Fig. 1 is operation principle block diagram of the present invention
Specific implementation mode
The present invention is specifically described with reference to the accompanying drawings and examples.
Embodiment 1：It is illustrated further combined with table 1 " control algolithm " according to clinical practice.
1, according to clinical needs, target blood oxygen levels are set as following 6 kinds of available therapeutic schemes by control algolithm, wherein
Therapeutic scheme serial number（1）~（5）As long as selection target blood oxygen levels, setting doctor's advice flow value, oxygen uptake duration can start oxygen therapy.
（1）The target blood oxygen levels of anesthesia recovery patient's oxygen therapy are set as 96%, and permission deviation value is+1%；
（2）The target blood oxygen levels of conventional oxygen uptake patient are set as 95%, and permission deviation value is+1%；
（3）The target blood oxygen levels of newborn's oxygen therapy are set as 93%, and permission deviation value is+1%；
（4）The target blood oxygen levels of Patients with ARDS oxygen therapy are set as 92%, and permission deviation value is+1%；
（5）It is set as 90% with the target blood oxygen levels of hypercapnia risk person's oxygen therapy, permission deviation value is+1%。
2, doctor's advice flow value is set：Anesthesia recovery 5~6L/min of patient, the doctor's advice flow value of conventional patient generally 3~
It sets between 4L/min, is set between 0.5~1L/min of doctor's advice flow value of newborn's oxygen therapy, acute respiratory distress syndrome is suffered from
Person sets between 1~2L/min of doctor's advice flow value of hypercapnia risk person's oxygen therapy.
3, intervention control time definition：
（1）It reduces flow and intervenes control time：3min, when dynamic blood oxygen levels are more than target blood oxygen control interval value and stablize holding
When 3min, oxygen output flow is reduced.
（2）Increase flow and intervenes control time：1min, when dynamic blood oxygen levels are less than target blood oxygen control interval value and stabilization
When keeping 3min, increase oxygen output flow.
4, flow correction gradient defines：It is corrected in section in oxygen flow, reduces whole gradient when flow and be 0.5L/min, increase
It is 1L/min that gradient is adjusted when big flow, often reaches an intervention control time unit and adjusts a gradient, until oxygen flow
Correct the upper limit or lower limit in section.
5, oxygen flow corrects section：According to three section Auto-matchings of doctor's advice flow value point：0.1L when low discharge doctor's advice
~2；1~4 when middle flow doctor's advice；1~8 when high flow capacity doctor's advice.
Table 1：Each establishing element of control algolithm and design parameter list.
In conjunction with the 2nd row of table 1, target blood oxygen levels are set in 96% oxygen therapy scheme（1）It further illustrates.In human-computer interaction circle
Face is that 96%, doctor's advice flow value is set in high flow capacity oxygen uptake 5L/min, oxygen uptake duration 5h tri- to the target blood oxygen levels of the patient set
A parameter.Between target blood oxygen control interval value is defined on 95%~97% by control system automatically, oxygen flow correct section from
It is dynamic to be defined between 1~8L/min.Enter oxygen therapy pattern, oxygen saturation monitor module dynamic monitoring patient's dynamic blood oxygen after the completion of setting
Value maintains doctor's advice flow value when patient's dynamic blood oxygen levels are stably held between 95%~97%, when patient's dynamic blood oxygen levels are super
It crosses the target blood oxygen control interval value upper limit 97% and when duration reaches 3min, control system, which provides, reduces the instruction of oxygen output flow,
Flow control valve automatically turns down oxygen output, and it is 0.5L/min to turn down gradient every time, turns down a gradient within every 3 minutes, until
Oxygen flow corrects the minimum value in section；If patient's dynamic blood oxygen levels less than target blood oxygen control interval value lower limit 95% and when
Length reaches 1min, is provided in 0.5min controlling systems and increases the instruction of oxygen output flow, and flow control valve tunes up oxygen automatically
Output quantity, it is 1L/min that gradient is turned up every time, and a gradient is turned up per 0.5min, until oxygen flow corrects the maximum in section
Value.When by adjusting oxygen output to maximum value or minimum value, but the dynamic blood oxygen levels of patient still deviate target blood oxygen
When control interval value, control system provides information warning, and information warning prompts or long-range in information warning in human-computer interaction interface
It is transferred to nursing terminal, medical staff is prompted to carry out manual intervention.After the long 5h of oxygen time for reaching setting, flow control valve is certainly
Dynamic to close, control system prompts this oxygen therapy to terminate.
Above-mentioned accompanying drawings and embodiments are merely illustrative of the technical solution of the present invention and unrestricted.Although with reference to preferred embodiment
Describe the invention in detail, it will be understood by those of ordinary skill in the art that, can to technical scheme of the present invention into
Row modification or equivalent replacement should all cover the power in the present invention without departing from the objective and range of technical solution of the present invention
In sharp claimed range, protection scope of the present invention is not limited in any way.
Claims (9)
- With target blood oxygen levels be the intelligent oxygen therapy system being precisely controlled a little 1. a kind of, mainly by control system, oxygen saturation monitor module, Flow control valve, flow measurement module, optical sensor, human-computer interaction interface, communication module composition, it is characterised in that：Control Control algolithm is equipped in system, control algolithm establishing element includes and is not limited to target blood oxygen levels, target blood oxygen allows deviation value, Doctor's advice flow value, intervention control time, flow correction section, flow correction gradient；By the target blood oxygen in control algolithm element The design parameter of deviation value, intervention control time, flow correction section, flow correction gradient is allowed to be previously written control system In, target blood oxygen levels, doctor's advice flow value and oxygen uptake duration are set according to patient's states in human-computer interaction interface personalization；Man-machine friendship Mutual interface at least should include target blood oxygen levels set key, oxygen uptake duration set key, flow set key；One kind is with target blood oxygen levels It is precisely controlled intelligent oxygen therapy system a little, it is further characterized in that：Target blood oxygen allows deviation value to be written in control algolithm, as long as Human-computer interaction interface sets target blood oxygen levels, and control system, which just can be calculated voluntarily, provides target blood oxygen control interval value；Flow is repaiied Positive section is divided into low discharge area, middle flow area, the adjusting section of high traffic areas three, and flow correction section is written in control algolithm, As long as setting doctor's advice flow value in human-computer interaction interface, the corresponding flow correction section of control system Auto-matching will export The upper and lower bound of flow is strict controlled in flow correction section；Oxygen saturation monitor module continuously monitors patient's in process of oxygen therapy Dynamic blood oxygen levels maintain the output of doctor's advice flow value when patient's dynamic blood oxygen levels are stably held in target blood oxygen control interval value Oxygen；When dynamic blood oxygen levels are more than the target blood oxygen control interval value upper limit and to reach intervention control time, in flow correction area In, according to flow correction gradient reduce output flow automatically；When dynamic blood oxygen levels are less than target blood oxygen control interval value lower limit And reaches intervention control time, output flow is automatically increased in flow correction section, according to flow correction gradient, to make Patient's dynamic blood oxygen levels are stably held in target blood oxygen control interval value, achieve the purpose that be precisely controlled oxygen therapy；It is adjusted when passing through Whole oxygen output is to maximum value or minimum value, but the dynamic blood oxygen levels of patient still deviate target blood oxygen control interval value When, control system provides information warning, and medical staff is prompted to carry out manual intervention, information warning prompt in human-computer interaction interface or Remote transmission is to nursing terminal；During oxygen therapy, if when oxygen saturation monitor module operation irregularity, including and it is not limited to blood oxygen probe From monitoring position falls off, blood oxygen probe damages, blood oxygen levels can not be obtained normally, output flow value is restored to by control system automatically Initially set doctor's advice flow value stops automatic intervention and adjusts output flow, avoids that security risk occurs.
- 2. it is according to claim 1 it is a kind of with target blood oxygen levels be the intelligent oxygen therapy system being precisely controlled a little, feature is also It is：Target blood oxygen levels set key, oxygen uptake duration set key, flow set key use Lineside encoding unit.
- 3. it is according to claim 1 it is a kind of with target blood oxygen levels be the intelligent oxygen therapy system being precisely controlled a little, feature is also It is：For control system using the target blood oxygen levels of this personalization as core control point, the target blood oxygen levels provided are equipped with permission Deviation value, target blood oxygen allow deviation value to exist+1%~+It is defined between 3%.
- 4. it is according to claim 1 it is a kind of with target blood oxygen levels be the intelligent oxygen therapy system being precisely controlled a little, feature is also It is：Intervention control time is set between 0~30min；Preferable scheme is that intervention control time is with the steady of dynamic blood oxygen levels It fixes time and is calculated for foundation, when dynamic blood oxygen levels are more than target blood oxygen control interval value and 1~5min of the in stable condition holding When, control system reduces oxygen output flow, when dynamic blood oxygen levels are less than target blood oxygen control interval value and the in stable condition guarantor When holding and keeping 0.5~3min, control system increases oxygen output flow.
- 5. it is according to claim 1 it is a kind of with target blood oxygen levels be the intelligent oxygen therapy system being precisely controlled a little, feature is also It is：Control algolithm is according to the corresponding flow correction section of doctor's advice flow value Auto-matching of setting, control system intervention oxygen When output flow automatically adjusts, the upper and lower bound of output flow is strict controlled in flow correction section, when automatic adjustment Not break through.
- 6. it is according to claim 1 it is a kind of with target blood oxygen levels be the intelligent oxygen therapy system being precisely controlled a little, feature is also It is：Flow correction section is divided into low discharge area, middle flow area, the adjusting section of high traffic areas three, specially：Low discharge oxygen therapy When（Between doctor's advice flow value 0.5L/min~2L/min）, flow correction section definition is 0.1L/min~2L/min, middle flow When oxygen therapy（Doctor's advice flow value 3L/min~4L/min）, flow correction section definition is 0.1L/min~4L/min, high flow capacity oxygen When treatment（Doctor's advice flow value 5L/min~8L/min）, flow correction section definition is 0.1L/min~8L/min.
- 7. it is according to claim 1 it is a kind of with target blood oxygen levels be the intelligent oxygen therapy system being precisely controlled a little, feature is also It is：Flow correction gradient is to adjust the flow value for increasing or reducing each time when intervening flow-rate adjustment, in the oxygen stream of restriction Amount is corrected in section, and flow correction gradient is defined as between 0.1L/min~1L/min.
- 8. it is according to claim 1 it is a kind of with target blood oxygen levels be the intelligent oxygen therapy system being precisely controlled a little, feature is also It is：The parameter setting range of each establishing element of control algolithm Preferable scheme is that, the target being previously written in the controls Blood oxygen allow deviation value be+1%, intervention control time is defined by 3min definition, increase flow by 0.5min when reducing flow； Flow correction section is in low discharge oxygen therapy（Between 0.5L/min~2L/min）When be defined as 0.5L/min~2L/min, middle flow Oxygen therapy（3L/min~4L/min）When be defined as 0.5L/min~4L/min, high flow capacity oxygen therapy（5L/min~8L/min）Shi Dingyi For 1L/min~8L/min；Flow correction gradient is 0.5L/min；Target blood oxygen levels, doctor's advice flow value, oxygen therapy duration are according to trouble Person's individual difference is set with degree of oxygen deficiency in human-computer interaction interface personalization.
- 9. it is according to claim 1 it is a kind of with target blood oxygen levels be the intelligent oxygen therapy system being precisely controlled a little, feature is also It is：The control algolithm of medically common oxygen therapy scheme is written in control system control algolithm, as long as medical staff is in people Border interactive interface sets target blood oxygen levels, and control system provides the other elements such as oxygen uptake flow value, oxygen uptake duration automatically, for medical care Personnel selection application；Certainly according to patient individual difference, what medical staff can provide control system in human-computer interaction interface The design parameters such as oxygen uptake flow value, oxygen uptake duration are modified, and are provided and are more optimized safe personalized therapy program.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114464308A (en) * | 2022-03-24 | 2022-05-10 | 中山清匠电器科技有限公司 | Autonomous portable oxygenerator based on data of Internet of things |
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| CN111481779A (en) * | 2019-08-05 | 2020-08-04 | 西安汇智医疗集团有限公司 | Multifunctional oxygen output system based on cooperative control of respiratory frequency and target blood oxygen value |
| WO2022017156A1 (en) * | 2020-07-22 | 2022-01-27 | 深圳迈瑞生物医疗电子股份有限公司 | Method for adjusting fraction of inspired oxygen, and respiratory support device |
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| CN111991662A (en) * | 2020-09-14 | 2020-11-27 | 江西安联医疗器械有限公司 | Intelligent system for automatically providing oxygen treatment scheme |
| CN111991663A (en) * | 2020-09-14 | 2020-11-27 | 江西安联医疗器械有限公司 | 3-connection intelligent system for automatically providing oxygen treatment scheme |
| CN111991662B (en) * | 2020-09-14 | 2023-08-15 | 江西安联医疗器械有限公司 | Intelligent system for automatically providing oxygen treatment scheme |
| CN114190931A (en) * | 2020-12-29 | 2022-03-18 | 深圳迈瑞软件技术有限公司 | Method and device for monitoring blood oxygen saturation |
| CN114464308A (en) * | 2022-03-24 | 2022-05-10 | 中山清匠电器科技有限公司 | Autonomous portable oxygenerator based on data of Internet of things |
| CN114464308B (en) * | 2022-03-24 | 2022-08-23 | 中山清匠电器科技有限公司 | Independently portable oxygenerator based on thing networking data |
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