CN108245750A - A kind of control method, the device and system of Oxygen therapy apparatus output tolerance - Google Patents
A kind of control method, the device and system of Oxygen therapy apparatus output tolerance Download PDFInfo
- Publication number
- CN108245750A CN108245750A CN201711499032.0A CN201711499032A CN108245750A CN 108245750 A CN108245750 A CN 108245750A CN 201711499032 A CN201711499032 A CN 201711499032A CN 108245750 A CN108245750 A CN 108245750A
- Authority
- CN
- China
- Prior art keywords
- data
- oxygen therapy
- flow
- pressure data
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002640 oxygen therapy Methods 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 46
- 230000008569 process Effects 0.000 claims abstract description 13
- 230000000241 respiratory effect Effects 0.000 claims description 13
- 230000009467 reduction Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000013139 quantization Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- 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
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The present invention provides control method, the device and system of a kind of Oxygen therapy apparatus output tolerance, are related to the technical field of Oxygen therapy apparatus control, and this method includes：Data when obtaining Oxygen therapy apparatus work in air flue；First data waveform is built based on the data on flows in the pressure data and air flue in air flue；First data waveform is handled, obtain first pressure data group and obtains first flow data group；Based on first pressure data group and first flow data group, the output tolerance of the Oxygen therapy apparatus is adjusted.The present invention is solved since the wind turbine output gas flow of traditional Oxygen therapy apparatus is constant, therefore in user's exhalation process, it can be because of the technical issues of user's expiration that the direction of the airflow direction exhaled and wind turbine output gas flow instead results in has some setbacks, the expiration action for judging user is reached, and the output tolerance for adjusting wind turbine is acted according to the expiration of user, enable user's expiration smoothly technique effect.
Description
Technical Field
The invention relates to the technical field of oxygen therapy instrument control, in particular to a method, a device and a system for controlling the output gas of an oxygen therapy instrument.
Background
In the prior art, the output air quantity of the oxygen therapy instrument is constant, and the output air quantity of the fan is always constant no matter a user inhales or exhales, but man-machine confrontation can occur when the user exhales. When the user exhales actively, because the direction of the airflow during exhalation is opposite to the direction of the airflow output by the fan, two air flows can resist each other, so that the air pressure in the air passage rises rapidly, and the user feels that the exhalation is not smooth.
No effective solution has been proposed to the above problems.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method, an apparatus and a system for controlling an output air quantity of an oxygen therapy apparatus, so as to solve the technical problem that in the process of a user exhaling, the direction of the exhaled air flow is opposite to the direction of the output air flow of a fan, which causes the user to exhale unsmoothly, because the fan of the conventional oxygen therapy apparatus outputs the constant air flow.
In a first aspect, an embodiment of the present invention provides a method for controlling an output gas of an oxygen therapy apparatus, where the method includes: acquiring data in an air passage when the oxygen therapy instrument works, wherein the data in the air passage are pressure data in the air passage and flow data in the air passage, which are acquired by acquisition equipment at a first preset frequency; constructing a first data waveform based on the pressure data in the airway and the flow data in the airway, wherein the first data waveform comprises a pressure data waveform and a flow data waveform; processing the first data waveform to obtain a first pressure data set and a first flow data set; adjusting an output gas volume of the oxygen therapy instrument based on the first pressure data set and the first flow data set.
Further, processing the first data waveform to obtain a first pressure data set, and obtaining a first flow data set comprises: denoising and filtering the first data waveform to obtain a second data waveform; sampling the second data waveform at a first preset time and a first preset frequency to obtain a plurality of intermediate pressure data groups and a plurality of intermediate flow data groups; calculating the plurality of intermediate pressure data sets and the plurality of intermediate flow data sets to obtain the first pressure data set and the first flow data set.
Further, calculating the plurality of intermediate pressure data sets and the plurality of intermediate flow data sets to obtain the first pressure data set and the first flow data set comprises: calculating a first set of averages of the pressure data in the plurality of sets of intermediate pressure data and determining a first set of differences based on the first averages; calculating a second set of averages of the flow data in the second plurality of flow data sets and determining a second set of differences based on the second averages; determining the first pressure data set and the first flow data set based on the first set of differences and the second set of differences.
Further, adjusting an output gas volume of the oxygen therapy instrument based on the first pressure data set and the first flow data set comprises: determining a respiratory state of a user using the oxygen therapy apparatus based on the first pressure data set and the first flow data set; and adjusting the output gas quantity of the oxygen therapy instrument by combining the respiration state, the first pressure data set and the first flow data set.
Further, determining a respiratory state of a user using the oxygen therapy apparatus based on the first pressure data set and the first flow data set comprises: and judging the respiratory state of the user using the oxygen therapy instrument based on the magnitude relation between any two adjacent pressure data in the first pressure data group.
Further, in conjunction with the respiratory state, the first pressure data set, and the first flow data set, adjusting an output volume of an oxygen therapy instrument comprises: calculating the gas outlet reduction amount of the oxygen therapy instrument in the respiratory state of the user based on the data in the first pressure data group and the first flow data group, and adjusting the output gas amount of the oxygen therapy instrument based on the gas outlet reduction amount.
In a second aspect, an embodiment of the present invention provides a device for controlling an output gas of an oxygen therapy apparatus, including: the acquiring unit is used for acquiring data in an air passage when the oxygen therapy instrument works, wherein the data in the air passage are pressure data in the air passage and flow data in the air passage, which are acquired by acquiring equipment at a first preset frequency; the device comprises a construction unit, a data processing unit and a data processing unit, wherein the construction unit is used for constructing a first data waveform based on pressure data in the airway and flow data in the airway, and the first data waveform comprises a pressure data waveform and a flow data waveform; a processing unit, configured to process the first data waveform to obtain a first pressure data set and obtain a first flow data set; an adjusting unit for adjusting the output gas of the oxygen therapy apparatus based on the first pressure data set and the first flow data set.
In a third aspect, an embodiment of the present invention provides a system for controlling an output gas of an oxygen therapy apparatus, where the system includes: the sensor is connected with the processor, the processor is connected with the controller, and the controller is connected with a fan of the oxygen therapy instrument; the sensor is used for acquiring pressure data and flow data in the airway of the oxygen therapy apparatus and sending the pressure data and the flow data to the processor; the processor is used for processing based on the pressure data and the flow data in the air passage of the oxygen therapy instrument acquired by the sensor to form a first pressure data set and a first flow data set for controlling the output flow of the oxygen therapy instrument; the controller is used for sending control information to the oxygen therapy instrument according to the pressure data and the flow data which are obtained after the processor is used for controlling the output gas of the oxygen therapy instrument, and adjusting the output gas of the oxygen therapy instrument.
Further, the sensor includes: the oxygen therapy apparatus comprises a pressure sensor and a flow sensor, wherein the pressure sensor is used for acquiring pressure data in an airway of the oxygen therapy apparatus and sending the pressure data to the processor; the flow sensor is used for acquiring flow data in the airway of the oxygen therapy apparatus and sending the flow data to the processor.
Further, the processor includes: the device comprises an image processor and a data processor, wherein the image processor is used for converting pressure data and flow data acquired by the sensor into a first data waveform, performing drying quantization processing on the first data waveform to obtain a second data waveform, and performing data acquisition on the second data waveform to obtain a plurality of intermediate pressure data groups and a plurality of intermediate flow data groups; the data processor is used for processing the plurality of intermediate pressure data sets and the plurality of intermediate flow data sets to form a first pressure data set and a first flow data set which control the output flow of the oxygen therapy instrument.
In the embodiment of the invention, firstly, data in an air passage is obtained when the oxygen therapy instrument works; then, constructing a first data waveform based on the pressure data in the air passage and the flow data in the air passage; then, processing the first data waveform to obtain a first pressure data set and a first flow data set; finally, the output gas of the oxygen therapy instrument is adjusted based on the first pressure data set and the first flow data set. The embodiment of the invention solves the technical problem that the user cannot exhale smoothly because the direction of the exhaled air flow is opposite to the direction of the air flow output by the fan in the process of exhaling the user because the air flow output by the fan of the traditional oxygen therapy apparatus is constant, and achieves the technical effects of judging the exhalation action of the user, adjusting the output air quantity of the fan according to the exhalation action of the user and ensuring that the user exhales smoothly.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flow chart of a method for controlling the output gas of an oxygen therapy apparatus according to an embodiment of the present invention;
fig. 2 is a flow chart of another method for controlling the output gas of the oxygen therapy apparatus according to the embodiment of the invention;
fig. 3 is a flow chart of a method for controlling the output gas of an oxygen therapy apparatus according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a control device for the output gas of an oxygen therapy apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a control system for the output gas of an oxygen therapy apparatus according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
in accordance with an embodiment of the present invention, there is provided an embodiment of a method for controlling output of an oxygen therapy apparatus, where the steps illustrated in the flowchart of the drawings may be implemented in a computer system, such as a set of computer executable instructions, and where a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that illustrated herein.
Fig. 1 is a schematic view of a method for outputting gas by an oxygen therapy apparatus according to an embodiment of the present invention, as shown in fig. 1, the method comprising the steps of:
step S102, acquiring data in an air passage when the oxygen therapy apparatus works, wherein the data in the air passage are pressure data in the air passage and flow data in the air passage, which are acquired by acquisition equipment at a first preset frequency;
step S104, constructing a first data waveform based on the pressure data in the air passage and the flow data in the air passage, wherein the first data waveform comprises a pressure data waveform and a flow data waveform;
step S106, processing the first data waveform to obtain a first pressure data set and a first flow data set;
and step S108, adjusting the output gas of the oxygen therapy instrument based on the first pressure data set and the first flow data set.
The embodiment of the invention provides a method for controlling the output gas of an oxygen therapy instrument, which comprises the following steps: acquiring data in an air passage when the oxygen therapy instrument works; constructing a first data waveform based on pressure data within the airway and flow data within the airway; processing the first data waveform to obtain a first pressure data set and a first flow data set; adjusting an output gas volume of the oxygen therapy instrument based on the first pressure data set and the first flow data set. The technical problem that in the prior art, the air flow output by the fan of the oxygen therapy apparatus is constant, and the direction of the air flow output by the fan is opposite to the direction of the air flow output by the fan in the process of the exhalation of the user, so that the exhalation of the user is not smooth is solved, the technical effects of judging the exhalation action of the user, adjusting the air output of the fan according to the exhalation action of the user and enabling the exhalation of the user to be smooth are achieved.
In the embodiment of the present invention, in step S102, data in the airway when the oxygen therapy apparatus works is obtained, where the data in the airway is pressure data in the airway and flow data in the airway, which are acquired by an acquisition device at a first preset frequency.
In the embodiment of the invention, when the oxygen therapy instrument starts to work, pressure data in the air passage and flow data in the air passage are acquired, wherein the first preset acquisition frequency of the pressure data in the air passage and the first preset acquisition frequency of the flow data in the air passage are both 500Hz, the pressure data is p (N), N is 0,1,2 …, N is flow data f (N), N is 0,1,2 …, and N is N
In this embodiment of the present invention, in step S104, a first data waveform is constructed based on the pressure data in the airway and the flow data in the airway, where the first data waveform includes a pressure data waveform and a flow data waveform.
In the embodiment of the invention, after the pressure data in the air passage and the flow data in the air passage are acquired, a pressure data waveform taking time as a horizontal axis and pressure data as an axis and a pressure data waveform taking time as a horizontal axis and flow data as a vertical axis are respectively constructed.
Next, the control method of the output gas of the oxygen therapy apparatus will be described in detail with reference to fig. 2 and 3.
In this embodiment of the present invention, as shown in fig. 2, the step S106 of processing the first data waveform to obtain a first pressure data set, and obtaining a first flow data set includes:
step S1061, performing denoising and filtering processing on the first data waveform to obtain a second data waveform;
step S1062, sampling the second data waveform by a first preset time and a first preset frequency to obtain a plurality of intermediate pressure data sets and a plurality of intermediate flow data sets;
step S1063, calculating the plurality of intermediate pressure data sets and the plurality of intermediate flow rate data sets to obtain the first pressure data set and the first flow rate data set.
In the embodiment of the present invention, a pressure data waveform and a flow data waveform in the first data waveform are subjected to denoising and filtering processing by using a processing method of amplitude limiting and smoothing filtering, so as to obtain a relatively smooth pressure data waveform and a relatively smooth flow data waveform (i.e., a second data waveform).
Constructing a sliding window with a length of a first preset time T (T ═ 600ms) for sampling a pressure data waveform and a flow data waveform respectively in the second data waveform contained in the sliding window at a first preset frequency Z (Z ═ 500Hz), the sliding window is not sampled for 1 time, and then the positive direction of the horizontal axis of the pressure data waveform and the flow data waveform in the second data waveform is moved for 2ms, so as to obtain a plurality of intermediate pressure data groups and a plurality of intermediate flow data groups, wherein each of the plurality of intermediate pressure data sets (N number of the plurality of intermediate pressure sets) contains N pressure data (N-T-Z-300), each of the plurality of intermediate flow rate data sets (N number of the plurality of intermediate flow rate sets) includes N pressure data sets (N ═ T ═ Z ═ 300).
In this embodiment of the present invention, as shown in fig. 3, the step S1063 is to calculate the plurality of intermediate pressure data sets and the plurality of intermediate flow rate data sets to obtain the first pressure data set and the first flow rate data set, and further includes:
step S31, calculating a first set of mean values of the pressure data in the plurality of sets of intermediate pressure data, and determining a first set of difference values based on the first mean values;
step S32, calculating a second group average value of the flow data in the plurality of second flow data groups, and determining a second group difference value based on the second average value;
step S33, determining the first pressure data set and the first flow data set based on the first set of differences and the second set of differences.
In the embodiment of the invention, the average value of each of the plurality of pressure data sets is calculated respectivelyAnd an average value of each of the plurality of intermediate traffic data setsThe calculation formula is as follows:
wherein n is 1,2, … n.
Then, sequentially calculateObtaining data in a plurality of first difference values, comparing the data in the plurality of first difference values with a first threshold value Mf (Mf is 5LPM), ifGreater than the first threshold Mf, thenInto the first pressure data set mf (n); if it is notLess than the first threshold willStoring the first pressure data set mf (N) to obtain the first pressure data set, wherein N is 0,1,2 ….
Then, the calculation is performedObtaining data in a plurality of second difference values, comparing the data in the plurality of second difference values with a second threshold value Mp (Mp is 0.2cmH2O) respectively, ifGreater than the first threshold Mf, thenInto the first pressure data set mf (n); if it is notLess than the first threshold willAnd storing the data into the first flow rate data group mp (N), thereby obtaining the first flow rate data group, wherein in the first flow rate data group mp (N), N is 0,1,2 ….
In an embodiment of the present invention, as shown in fig. 2, the step S108 of adjusting the output volume of the oxygen therapy apparatus based on the first pressure data set and the first flow data set further includes:
step S1081, determining a respiratory state of a user using the oxygen therapy apparatus based on the first pressure data set and the first flow data set;
and step S1082, adjusting the output gas quantity of the oxygen therapy instrument by combining the respiration state, the first pressure data set and the first flow data set.
In the embodiment of the invention, in the first flow data group mP (N), the size relationship between mP (N) and mP (N-1) is detected, and the initial value P of the pressure drop is recordeddsWherein if PdsConstantly observing the change in mP (N-1), if there is always mP (N). ltoreq.mP (N-1), meaning that the pressure is decreasing all the time and the user is inhaling; continuing to monitor, when at a certain point mP (N) appears>mP (N-1), recording a minimum value P found at that timeminmP (N-1) if Pds-Pmin>0.5cmH2O, indicating that a minimum has occurred, indicates that the user is about to enter the expiratory preparation phase. If P isds-PminLess than or equal to 0.5cmH2O, the vibration may be a small amplitude, not caused by the inspiration of the user, the zero clearing P of the oxygen therapy apparatusdsAnd PminThe process of detecting the minimum value continues.
When the minimum value P is obtainedminAnd lowering its substantial initial value PdsThen, the oxygen therapy instrument continuously detects whether the pressure rises or not, if so, the oxygen therapy instrument detects that the pressure risesminmP (N) occurs within 500ms (according to empirical values, the switching between inspiration and expiration of a typical person is completed within 500ms, which may be any other value from 100ms to 3S)>PdsAnd has mF (N)<And mF (N-1), the user is considered to be in an expiratory state.
In an embodiment of the present invention, as shown in fig. 3, in step S1082, the adjusting output volume of the oxygen therapy apparatus according to the respiration status, the first pressure data set and the first flow data set further includes:
and step 21, calculating the air outlet reduction amount of the oxygen therapy instrument in the respiratory state of the user based on the data in the first pressure data group and the first flow data group, and adjusting the output air quantity of the oxygen therapy instrument based on the air outlet reduction amount.
In the embodiment of the invention, when the user is judged to be in the exhalation state, the exhalation doing work W of the user is calculatedexpThe calculation formula is as follows:
wherein,is obtained to PdsTime of (T)expEndIs the moment of expiration ending, which is essentially equal to the next respiratory cycleV represents the volume, wherein the volume V is calculatedThe formula is as follows:
in acquiring W of each breathexpThen, the oxygen therapy instrument also acquires the output air volume V reduced by the oxygen therapy instrument during each respirationd. When the oxygen therapy instrument starts to work, the initial output gas volume V of the oxygen therapy instrumentdIs 5 LPM. Then varied according to the following formula:
wherein K is 6 (any other value between 2 and 20 may be used).
Wherein Sf is the preset output gas of the oxygen therapy instrument.
V calculated from the above formuladThe result of the oxygen therapy instrument cannot exceed 70 percent of the preset output air quantity Sf of the oxygen therapy instrument at most, namely Vd>At 70% Sf, Vd＝70％Sf。
In summary, the control process of the oxygen therapy apparatus when the user exhales is as follows: assuming that the output air quantity of the oxygen therapy instrument is Sf during inspiration, the output air quantity of the oxygen therapy instrument is Sf-V after the expiration is determined to be starteddThen, after maintaining for 300ms (which may be any other value between 10ms and 1 s), the output air amount is restored to the set value Sf.
Example two:
fig. 4 is a schematic diagram of a control system for output gas of an oxygen therapy apparatus according to an embodiment of the present invention, as shown in fig. 4, the system comprising: an acquisition unit 41, a construction unit 42 and a processing unit 43, wherein:
the acquiring unit 41 is used for acquiring data in an air passage when the oxygen therapy apparatus works, wherein the data in the air passage is pressure data in the air passage and flow data in the air passage, which are acquired by acquiring equipment at a first preset frequency;
a constructing unit 42, configured to construct a first data waveform based on the pressure data in the airway and the flow data in the airway, where the first data waveform includes a pressure data waveform and a flow data waveform;
a processing unit 43, configured to process the first data waveform to obtain a first pressure data set and obtain a first flow data set; an adjusting unit for adjusting the output gas of the oxygen therapy apparatus based on the first pressure data set and the first flow data set.
In the embodiment of the invention, firstly, data in an air passage is obtained when the oxygen therapy instrument works; then, constructing a first data waveform based on the pressure data in the air passage and the flow data in the air passage; then, processing the first data waveform to obtain a first pressure data set and a first flow data set; finally, the output gas of the oxygen therapy instrument is adjusted based on the first pressure data set and the first flow data set. The embodiment of the invention solves the technical problem that the user cannot exhale smoothly because the direction of the exhaled air flow is opposite to the direction of the air flow output by the fan in the process of exhaling the user because the air flow output by the fan of the traditional oxygen therapy apparatus is constant, and achieves the technical effects of judging the exhalation action of the user, adjusting the output air quantity of the fan according to the exhalation action of the user and ensuring that the user exhales smoothly.
Example three:
fig. 5 is a schematic diagram of a control system for output gas of an oxygen therapy apparatus according to an embodiment of the present invention, as shown in fig. 5, the system comprising: the oxygen therapy instrument comprises a sensor 10, a processor 20 and a controller 30, wherein the sensor 10 is connected with the processor 20, the processor 20 is connected with the controller 30, and the controller 30 is connected with a fan of the oxygen therapy instrument;
the sensor 10 is used for acquiring pressure data and flow data in the airway of the oxygen therapy apparatus and sending the pressure data and the flow data to the processor 20;
the processor 20 is used for processing based on the pressure data and the flow data in the air passage of the oxygen therapy instrument acquired by the sensor 10 to form a first pressure data set and a first flow data set for controlling the output flow of the oxygen therapy instrument;
the controller 30 is configured to send control information to the oxygen therapy apparatus according to the pressure data and the flow data for controlling the output gas of the oxygen therapy apparatus, which are obtained after the processing by the processor 20, and adjust the output gas of the oxygen therapy apparatus.
In the embodiment of the invention, firstly, data in an air passage is obtained when the oxygen therapy instrument works; then, constructing a first data waveform based on the pressure data in the air passage and the flow data in the air passage; then, processing the first data waveform to obtain a first pressure data set and a first flow data set; finally, the output gas of the oxygen therapy instrument is adjusted based on the first pressure data set and the first flow data set. The embodiment of the invention solves the technical problem that the user cannot exhale smoothly because the direction of the exhaled air flow is opposite to the direction of the air flow output by the fan in the process of exhaling the user because the air flow output by the fan of the traditional oxygen therapy apparatus is constant, and achieves the technical effects of judging the exhalation action of the user, adjusting the output air quantity of the fan according to the exhalation action of the user and ensuring that the user exhales smoothly.
Optionally, the sensor 10 comprises: the oxygen therapy apparatus comprises a pressure sensor and a flow sensor, wherein the pressure sensor is used for acquiring pressure data in an airway of the oxygen therapy apparatus and sending the pressure data to the processor; the flow sensor is used for acquiring flow data in the airway of the oxygen therapy apparatus and sending the flow data to the processor.
Optionally, the processor 20 comprises: the device comprises an image processor and a data processor, wherein the image processor is used for converting pressure data and flow data acquired by the sensor into a first data waveform, performing drying quantization processing on the first data waveform to obtain a second data waveform, and performing data acquisition on the second data waveform to obtain a plurality of intermediate pressure data groups and a plurality of intermediate flow data groups; the data processor is used for processing the plurality of intermediate pressure data sets and the plurality of intermediate flow data sets to form a first pressure data set and a first flow data set which control the output flow of the oxygen therapy instrument.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A control method for the output gas of an oxygen therapy apparatus is characterized by comprising the following steps:
acquiring data in an air passage when the oxygen therapy instrument works, wherein the data in the air passage are pressure data in the air passage and flow data in the air passage, which are acquired by acquisition equipment at a first preset frequency;
constructing a first data waveform based on the pressure data in the airway and the flow data in the airway, wherein the first data waveform comprises a pressure data waveform and a flow data waveform;
processing the first data waveform to obtain a first pressure data set and a first flow data set;
adjusting an output gas volume of the oxygen therapy instrument based on the first pressure data set and the first flow data set.
2. The method of claim 1, wherein processing the first data waveform to obtain a first pressure data set, and obtaining a first flow data set comprises:
denoising and filtering the first data waveform to obtain a second data waveform;
sampling the second data waveform at a first preset time and a first preset frequency to obtain a plurality of intermediate pressure data groups and a plurality of intermediate flow data groups;
calculating the plurality of intermediate pressure data sets and the plurality of intermediate flow data sets to obtain the first pressure data set and the first flow data set.
3. The method of claim 2, wherein calculating the plurality of intermediate pressure data sets and the plurality of intermediate flow data sets to obtain the first pressure data set and the first flow data set comprises:
calculating a first set of averages of the pressure data in the plurality of sets of intermediate pressure data and determining a first set of differences based on the first set of averages;
calculating a second set of averages of the flow data in the plurality of intermediate flow data sets and determining a second set of differences based on the second set of averages;
determining the first pressure data set and the first flow data set based on the first set of differences and the second set of differences.
4. The method of claim 2, wherein adjusting the output gas volume of the oxygen therapy instrument based on the first pressure data set and the first flow data set comprises:
determining a respiratory state of a user using the oxygen therapy apparatus based on the first pressure data set and the first flow data set;
and adjusting the output gas quantity of the oxygen therapy instrument by combining the respiration state, the first pressure data set and the first flow data set.
5. The method of claim 4, wherein determining a respiratory state of a user using the oxygen therapy instrument based on the first pressure data set and the first flow data set comprises:
and judging the respiratory state of the user using the oxygen therapy instrument based on the magnitude relation between any two adjacent pressure data in the first pressure data group.
6. The method of claim 4, wherein adjusting an output volume of an oxygen therapy instrument in conjunction with the respiratory state, the first pressure data set, and the first flow data set comprises:
and calculating the air outlet reduction amount of the oxygen therapy instrument in the respiratory state of the user based on the data in the first pressure data group and the first flow data group, and adjusting the output air quantity of the oxygen therapy instrument based on the air outlet reduction amount.
7. The utility model provides a controlling means of oxygen therapy apparatus output gas volume which characterized in that includes:
the acquiring unit is used for acquiring data in an air passage when the oxygen therapy instrument works, wherein the data in the air passage are pressure data in the air passage and flow data in the air passage, which are acquired by acquiring equipment at a first preset frequency;
the device comprises a construction unit, a data processing unit and a data processing unit, wherein the construction unit is used for constructing a first data waveform based on pressure data in the airway and flow data in the airway, and the first data waveform comprises a pressure data waveform and a flow data waveform;
a processing unit, configured to process the first data waveform to obtain a first pressure data set and obtain a first flow data set;
an adjusting unit for adjusting the output gas of the oxygen therapy apparatus based on the first pressure data set and the first flow data set.
8. A control system for output gas of an oxygen therapy apparatus, the system comprising: the sensor is connected with the processor, the processor is connected with the controller, and the controller is connected with a fan of the oxygen therapy instrument;
the sensor is used for acquiring pressure data and flow data in the airway of the oxygen therapy apparatus and sending the pressure data and the flow data to the processor;
the processor is used for processing based on the pressure data and the flow data in the air passage of the oxygen therapy instrument acquired by the sensor to form a first pressure data set and a first flow data set for controlling the output flow of the oxygen therapy instrument;
the controller is used for sending control information to the oxygen therapy instrument according to the pressure data and the flow data which are obtained after the processor is used for controlling the output gas of the oxygen therapy instrument, and adjusting the output gas of the oxygen therapy instrument.
9. The system of claim 8, wherein the sensor comprises: a pressure sensor and a flow sensor, wherein,
the pressure sensor is used for acquiring pressure data in the airway of the oxygen therapy apparatus and sending the pressure data to the processor;
the flow sensor is used for acquiring flow data in the airway of the oxygen therapy apparatus and sending the flow data to the processor.
10. The system of claim 8, wherein the processor comprises: an image processor and a data processor, wherein,
the image processor is used for converting the pressure data and the flow data acquired by the sensor into a first data waveform, performing drying quantization processing on the first data waveform to obtain a second data waveform, and performing data acquisition on the second data waveform to obtain a plurality of intermediate pressure data groups and a plurality of intermediate flow data groups;
the data processor is used for processing the plurality of intermediate pressure data sets and the plurality of intermediate flow data sets to form a first pressure data set and a first flow data set which control the output flow of the oxygen therapy instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499032.0A CN108245750A (en) | 2017-12-29 | 2017-12-29 | A kind of control method, the device and system of Oxygen therapy apparatus output tolerance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499032.0A CN108245750A (en) | 2017-12-29 | 2017-12-29 | A kind of control method, the device and system of Oxygen therapy apparatus output tolerance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108245750A true CN108245750A (en) | 2018-07-06 |
Family
ID=62725393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711499032.0A Pending CN108245750A (en) | 2017-12-29 | 2017-12-29 | A kind of control method, the device and system of Oxygen therapy apparatus output tolerance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108245750A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284753A (en) * | 2020-12-28 | 2021-01-29 | 中国航发上海商用航空发动机制造有限责任公司 | Method and device for measuring and analyzing flow of gas compressor test and gas compressor test system |
| CN114681736A (en) * | 2022-03-30 | 2022-07-01 | 广东省医疗器械质量监督检验所 | Respirator abnormality detection method and respirator |
| CN115554553A (en) * | 2022-09-27 | 2023-01-03 | 江苏鱼跃医疗设备股份有限公司 | Pulse type oxygen generation control method, device, controller and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1270036A2 (en) * | 1994-12-02 | 2003-01-02 | Respironics Inc. | Breathing gas delivery method and apparatus |
| CN102481127A (en) * | 2009-08-13 | 2012-05-30 | 帝人制药株式会社 | Device for calculating respiratory waveform information and medical device using respiratory waveform information |
| CN103340630A (en) * | 2013-06-18 | 2013-10-09 | 东南大学 | Identification device and identification method for breathe state of bi-level breathing machine |
| CN106362257A (en) * | 2016-11-03 | 2017-02-01 | 湖南明康中锦医疗科技发展有限公司 | Breathing switching based breathing machine pressure control method and breathing machine |
-
2017
- 2017-12-29 CN CN201711499032.0A patent/CN108245750A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1270036A2 (en) * | 1994-12-02 | 2003-01-02 | Respironics Inc. | Breathing gas delivery method and apparatus |
| CN102481127A (en) * | 2009-08-13 | 2012-05-30 | 帝人制药株式会社 | Device for calculating respiratory waveform information and medical device using respiratory waveform information |
| CN103340630A (en) * | 2013-06-18 | 2013-10-09 | 东南大学 | Identification device and identification method for breathe state of bi-level breathing machine |
| CN106362257A (en) * | 2016-11-03 | 2017-02-01 | 湖南明康中锦医疗科技发展有限公司 | Breathing switching based breathing machine pressure control method and breathing machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284753A (en) * | 2020-12-28 | 2021-01-29 | 中国航发上海商用航空发动机制造有限责任公司 | Method and device for measuring and analyzing flow of gas compressor test and gas compressor test system |
| CN112284753B (en) * | 2020-12-28 | 2021-03-12 | 中国航发上海商用航空发动机制造有限责任公司 | Method and device for measuring and analyzing flow of gas compressor test and gas compressor test system |
| CN114681736A (en) * | 2022-03-30 | 2022-07-01 | 广东省医疗器械质量监督检验所 | Respirator abnormality detection method and respirator |
| CN115554553A (en) * | 2022-09-27 | 2023-01-03 | 江苏鱼跃医疗设备股份有限公司 | Pulse type oxygen generation control method, device, controller and storage medium |
| CN115554553B (en) * | 2022-09-27 | 2024-08-13 | 江苏鱼跃医疗设备股份有限公司 | Pulse type oxygen generation control method, device, controller and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10842443B2 (en) | Detection of expiratory airflow limitation in ventilated patient | |
| EP2259821B1 (en) | Leak-compensated flow triggering and cycling in medical ventilators | |
| US8746248B2 (en) | Determination of patient circuit disconnect in leak-compensated ventilatory support | |
| US10207069B2 (en) | System and method for determining ventilator leakage during stable periods within a breath | |
| US7819815B2 (en) | Synchrony between end of ventilator cycles and end of patient efforts during assisted ventilation | |
| CN102770070B (en) | For the system and method for real-time assessment mechanics of lung | |
| RU2594808C2 (en) | System and method for treatment of hypoventilation in obesity | |
| US20220409836A1 (en) | Systems and methods for respiratory effort detection utilizing signal distortion | |
| WO2013016608A1 (en) | Methods and systems for model-based transformed proportional assist ventilation | |
| CN108245750A (en) | A kind of control method, the device and system of Oxygen therapy apparatus output tolerance | |
| CN108135536A (en) | Estimate while effort via parameter optimization to pneumodynamics and patient | |
| EP2571423A1 (en) | System and method for estimating upper airway resistance and lung compliance employing induced central apneas | |
| WO2020093331A1 (en) | Method and device for breathing recognition, ventilation apparatus, and storage medium | |
| CN107029326A (en) | A kind of breath signal decision algorithm for positive airway pressure machine | |
| CN106975134B (en) | Method and device for adjusting replacement point of respirator and noninvasive respirator | |
| JP2018519123A (en) | Method and system for patient airway flow and leakage flow estimation for non-invasive ventilation | |
| CN112999478A (en) | Adaptive tidal volume calculation method and device and breathing machine | |
| CN106975135B (en) | Method and device for air leakage compensation of respirator and noninvasive respirator | |
| CN112999479A (en) | Breathing machine inspiration triggering method and application | |
| Svantesson et al. | The static pressure–volume relationship of the respiratory systemdetermined with a computer‐controlled ventilator | |
| CN111298255B (en) | Breathing machine based on ventilation capacity automatic triggering switching output respiratory air pressure | |
| WO2023050108A1 (en) | Medical ventilation device and ventilation control method | |
| CA2519041C (en) | Improved synchrony between end of ventilator cycles and end of patient efforts during assisted ventilation | |
| US20210322691A1 (en) | Systems and methods for detecting respiratory mechanics | |
| CN114618060A (en) | Respirator control method based on event detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180706 |
|
| RJ01 | Rejection of invention patent application after publication |