CN110090341B - Constant flow pulse oxygen supply method and device for portable oxygen machine - Google Patents
Constant flow pulse oxygen supply method and device for portable oxygen machine Download PDFInfo
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- CN110090341B CN110090341B CN201810089371.XA CN201810089371A CN110090341B CN 110090341 B CN110090341 B CN 110090341B CN 201810089371 A CN201810089371 A CN 201810089371A CN 110090341 B CN110090341 B CN 110090341B
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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
- 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
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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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
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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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
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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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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Abstract
The invention relates to a constant flow pulse oxygen supply method and a device of a portable oxygen machine, wherein the method comprises the following steps: the central processing unit acquires a breathing pressure value in the oxygen delivery pipeline through a micro-pressure type differential pressure sensor; when the acquired pressure value is greater than a preset threshold value, judging the acquired pressure value as an inspiration starting point of an inspiration event, calculating the time interval between the inspiration starting points of two adjacent inspiration events, and further calculating the real-time respiratory frequency; the central processing unit searches the corresponding oxygen supply pulse width value according to the real-time respiratory frequency and outputs the value to the oxygen supply control valve to control the opening time length of the oxygen supply control valve, thereby realizing the pulse oxygen supply with the fixed flow. The device comprises a central processing unit, and an oxygen supply control valve and a micro-pressure differential pressure sensor which are respectively connected with the central processing unit. The portable oxygen machine can ensure that the total flow per minute is fixed no matter how large the breathing frequency of the oxygen user is and the effective oxygen consumption value can be achieved no matter how the breathing frequency of the oxygen user is under each gear. Not only saves oxygen, but also ensures the effectiveness of oxygen absorption.
Description
Technical Field
The invention relates to the field of production and manufacturing of medical equipment, in particular to a constant-flow pulse oxygen supply method and device of a portable oxygen machine.
Background
At present, with the use of more and more oxygen machines in clinic, people have higher and higher requirements on the oxygen machines, and portable oxygen machines which can be carried with people are more and more favored by people. Because the portable oxygen machine has small volume and greatly limited oxygen production capacity, the portable oxygen machine cannot supply oxygen in a continuous oxygen supply mode like a floor-type oxygen machine. Under the circumstances, the small portable oxygen machine needs to adopt a pulse oxygen supply mode synchronous with breathing to supply oxygen, and then the problem is how to supply oxygen, the oxygen generation capacity of the small portable oxygen machine can be exerted to the maximum extent, no waste of oxygen is generated, the oxygen absorption effectiveness can be ensured, and the oxygen absorption effect is equal to that of a continuous flow floor type oxygen machine. The oxygen supply amount is an important index, and if oxygen is supplied according to a fixed pulse width, the oxygen supply amount is inevitably relatively small when the respiratory rate of an oxygen-inhaling person is low, so that the oxygen-inhaling effectiveness is insufficient. On the contrary, if the breathing rate of the oxygen-inhaling person is high, the oxygen-inhaling amount of the oxygen-inhaling person is sufficient, but the waste of oxygen is generated, and if the oxygen-generating capacity of the portable oxygen machine is strong enough, the increase of the oxygen flow rate does not cause the decrease of the concentration of the inhaled oxygen, and the effectiveness of the oxygen-inhaling person is also affected.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a constant-flow pulse oxygen supply method and a constant-flow pulse oxygen supply device for a portable oxygen machine. The flow (LPM) of the portable oxygen machine can be ensured no matter how high the respiratory frequency of the oxygen patient is, namely the oxygen absorption amount per minute of the oxygen patient is ensured, and the effectiveness of oxygen absorption is further ensured.
The technical scheme adopted by the invention for realizing the purpose is as follows: a constant flow pulse oxygen supply method of a portable oxygen machine comprises the following steps:
step 1: the central processing unit acquires a breathing pressure value in the oxygen delivery pipeline through a micro-pressure type differential pressure sensor;
step 2: when the acquired pressure value is greater than a preset threshold value, judging the acquired pressure value as an inspiration starting point of an inspiration event, calculating the time interval between the inspiration starting points of two adjacent inspiration events, and further calculating the real-time respiratory frequency;
and step 3: the central processing unit searches the corresponding oxygen supply pulse width value according to the real-time respiratory frequency and outputs the value to the oxygen supply control valve to control the opening time length of the oxygen supply control valve, thereby realizing the pulse oxygen supply with the constant flow.
The constant flow pulse oxygen supply comprises the following steps: the total oxygen supply flow per minute is the same when the respiratory rate is different, the oxygen supply pulse width value is smaller when the respiratory rate is faster, and the oxygen supply pulse width value is larger when the respiratory rate is slower.
The total oxygen supply flow per minute corresponds to a plurality of different gear values which are preset and are stored in the central processing unit.
The oxygen supply pulse width value corresponding to the respiratory frequency is stored in the central processing unit.
A constant flow pulse oxygen supply device of a portable oxygen machine comprises: a central processing unit, an oxygen supply control valve and a micro-pressure differential pressure sensor which are respectively connected with the central processing unit.
The oxygen supply control valve is arranged on an oxygen conveying pipeline between an oxygen storage tank and an oxygen outlet joint of the portable oxygen machine and is used for controlling the oxygen flow of the oxygen outlet joint;
the micro-pressure differential pressure sensor is arranged on the oxygen delivery pipeline between the oxygen supply control valve and the oxygen outlet joint and is used for measuring the breathing pressure value in the oxygen delivery pipeline;
the central processing unit controls the opening time length of the oxygen supply control valve according to the respiratory pressure value in the oxygen delivery pipeline measured by the micro-pressure type differential pressure sensor, thereby realizing pulse oxygen supply with constant flow.
The central processing unit adopts a microcontroller.
The invention has the following beneficial effects and advantages:
the portable oxygen machine can ensure that the total flow per minute is fixed regardless of the breathing frequency of an oxygen inhaler under each gear, and can exert the large capacity of a small machine. The oxygen inhalation quantity value can be effectively achieved no matter how the respiratory frequency of the oxygen inhalation person. Not only achieves the effect of saving oxygen, but also ensures the effectiveness of oxygen absorption.
Drawings
FIG. 1 is a flow chart of a constant flow pulse oxygen supply method for a portable oxygen machine according to the present invention;
fig. 2 is a block diagram of the constant flow pulse oxygen supply device of the portable oxygen machine of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, it is a flow chart of a constant flow pulse oxygen supply method of a portable oxygen machine, and the specific method is as follows: the central processing unit detects the respiratory pressure in the oxygen therapy pipeline through the high-precision micro-pressure differential pressure sensor, judges the respiratory pressure as an inspiration starting point when the sampled respiratory pressure value is larger than a preset threshold value, further detects the time interval between the current inspiration starting point and the last inspiration starting point, and further calculates the real-time respiratory frequency (times/minute), namely the respiratory frequency per minute. And inquiring the oxygen supply pulse width value corresponding to the corresponding frequency according to the obtained real-time respiratory frequency and the gear of the oxygen supply amount of the fixed flow pulse, and further controlling the opening time of the oxygen supply control valve to supply oxygen.
The oxygen supply pulse width value inquired according to the real-time respiratory frequency is preset in the central processing unit, the constant flow pulse oxygen supply amount of the portable oxygen machine is divided into 5 gears, each gear corresponds to a group of pulse width values corresponding to the respiratory frequency, and under the same gear, the lower the respiratory frequency is, the larger the pulse width value is, the higher the respiratory frequency is, and the smaller the pulse width value is. For example, in the gear 5, when the breathing frequency is 20 times/minute, the corresponding oxygen supply pulse width value is 100ms, and the output flow rate corresponding to 1 minute is 1044 ml; when the respiratory rate is 30 times/minute, the corresponding oxygen supply pulse width value is 64ms, the corresponding flow output for 1 minute is 1062ml, and the flow error is guaranteed to be +/-10%.
As shown in fig. 2, the present invention is a block diagram of a constant flow pulse oxygen supply device for a portable oxygen machine, the device comprises an oxygen tank for outputting oxygen, an oxygen supply control valve connected with the input end of the oxygen supply control valve through a pipeline, and an oxygen supply control valve connected with a differential pressure sensor through a pipeline and connected with an oxygen outlet joint. The oxygen supply control valve is used for controlling the oxygen flow of the oxygen outlet joint; the micro-pressure differential pressure sensor is used for measuring the breathing pressure value in the oxygen supply pipeline; the central processing unit controls the opening time length of the oxygen supply control valve according to the respiratory pressure value measured by the detected micro-pressure type differential pressure sensor, thereby realizing pulse oxygen supply with constant flow. The central processing unit is a core hardware circuit which is a 32-bit high-performance microcontroller with an inner core of an Italian semiconductor ARM Cortex M3, an RHF206H80O of Nimantek is adopted for the oxygen control valve, and a high-precision micro-pressure sensor of Honiville HSCDRN 001NDAA5 is adopted for the micro-pressure differential pressure sensor. The portable oxygen machine can ensure that the total flow per minute is fixed no matter how large the breathing frequency of the oxygen user is and the effective oxygen consumption value can be achieved no matter how the breathing frequency of the oxygen user is under each gear. Not only saves oxygen, but also ensures the effectiveness of oxygen absorption.
Claims (1)
1. A constant flow pulse oxygen supply device of a portable oxygen machine is characterized by comprising: the central processing unit, and an oxygen supply control valve and a micro-pressure differential pressure sensor which are respectively connected with the central processing unit;
the oxygen supply control valve is arranged on an oxygen conveying pipeline between an oxygen storage tank and an oxygen outlet joint of the portable oxygen machine and is used for controlling the oxygen flow of the oxygen outlet joint;
the micro-pressure differential pressure sensor is arranged on the oxygen delivery pipeline between the oxygen supply control valve and the oxygen outlet joint and is used for measuring the breathing pressure value in the oxygen delivery pipeline;
the central processing unit controls the opening time length of the oxygen supply control valve according to the respiratory pressure value in the oxygen delivery pipeline measured by the micro-pressure type differential pressure sensor, so that pulse oxygen supply with constant flow is realized; the central processing unit executes the following program steps:
step 1: the central processing unit acquires a breathing pressure value in the oxygen delivery pipeline through a micro-pressure type differential pressure sensor;
step 2: when the acquired pressure value is greater than a preset threshold value, judging the acquired pressure value as an inspiration starting point of an inspiration event, calculating the time interval between the inspiration starting points of two adjacent inspiration events, and further calculating the real-time respiratory frequency;
and step 3: the central processing unit searches a corresponding oxygen supply pulse width value according to the real-time respiratory frequency and outputs the oxygen supply pulse width value to the oxygen supply control valve to control the opening time length of the oxygen supply control valve, so that pulse oxygen supply with constant flow is realized;
the constant flow pulse oxygen supply comprises the following steps: the total oxygen supply flow per minute is the same when the respiratory rate is different, the faster the respiratory rate is, the smaller the oxygen supply pulse width value is, and the slower the respiratory rate is, the larger the oxygen supply pulse width value is;
the total oxygen supply flow per minute corresponds to a plurality of preset gear values and is stored in the central processing unit;
the oxygen supply pulse width value corresponding to the respiratory frequency is stored in a central processing unit; the central processing unit adopts a microcontroller.
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| CN201810089371.XA CN110090341B (en) | 2018-01-30 | 2018-01-30 | Constant flow pulse oxygen supply method and device for portable oxygen machine |
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| CN201810089371.XA CN110090341B (en) | 2018-01-30 | 2018-01-30 | Constant flow pulse oxygen supply method and device for portable oxygen machine |
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| CN110090341A CN110090341A (en) | 2019-08-06 |
| CN110090341B true CN110090341B (en) | 2022-02-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112546388B (en) * | 2020-12-04 | 2023-03-14 | 可孚医疗科技股份有限公司 | Self-adaptive pulse type oxygen generator and oxygen supply control method and device thereof |
| CN113350638A (en) * | 2021-04-19 | 2021-09-07 | 苏州氧巢科技有限公司 | Respiration induction oxygen saver and electromagnetic valve control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203861719U (en) * | 2014-05-14 | 2014-10-08 | 沈阳新松医疗科技股份有限公司 | Synchronous triggering and oxygen-saving technical device |
| CN205814814U (en) * | 2016-04-28 | 2016-12-21 | 康泰医学系统（秦皇岛）股份有限公司 | A kind of oxygen uptake control system |
| CN106730209A (en) * | 2017-01-18 | 2017-05-31 | 湖南明康中锦医疗科技发展有限公司 | The method and lung ventilator of ventilator alarm |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007037614A (en) * | 2005-08-01 | 2007-02-15 | Matsushita Electric Ind Co Ltd | Oxygen enricher |
| CN201088762Y (en) * | 2007-10-24 | 2008-07-23 | 诸宝荣 | Digital oxygen flow quantity pulse-controller |
| JP2009011844A (en) * | 2008-06-13 | 2009-01-22 | Ikiken:Kk | Oxygen concentrator |
| CN101757710A (en) * | 2008-12-11 | 2010-06-30 | 北京谊安医疗系统股份有限公司 | Gas flow velocity adjustment device and method for controlling gas flow velocity in life-support machine |
| CN101433743A (en) * | 2008-12-12 | 2009-05-20 | 叶学俊 | Mini-oxygen controller |
| KR101317927B1 (en) * | 2011-11-30 | 2013-10-16 | 주식회사 옥서스 | Device and method for supplying oxygen |
| US9833643B2 (en) * | 2014-04-03 | 2017-12-05 | Mark Squibb | Apparatus for providing controlled flow of inhalation-air |
| CN106345026A (en) * | 2016-11-23 | 2017-01-25 | 广州军区广州总医院 | Intelligent oxygen saving and transferring apparatus and oxygen transferring method thereof |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203861719U (en) * | 2014-05-14 | 2014-10-08 | 沈阳新松医疗科技股份有限公司 | Synchronous triggering and oxygen-saving technical device |
| CN205814814U (en) * | 2016-04-28 | 2016-12-21 | 康泰医学系统（秦皇岛）股份有限公司 | A kind of oxygen uptake control system |
| CN106730209A (en) * | 2017-01-18 | 2017-05-31 | 湖南明康中锦医疗科技发展有限公司 | The method and lung ventilator of ventilator alarm |
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