CN1817378A - Non-compressed air mixing system of intelligent respirator - Google Patents
Non-compressed air mixing system of intelligent respirator Download PDFInfo
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- CN1817378A CN1817378A CN 200610038751 CN200610038751A CN1817378A CN 1817378 A CN1817378 A CN 1817378A CN 200610038751 CN200610038751 CN 200610038751 CN 200610038751 A CN200610038751 A CN 200610038751A CN 1817378 A CN1817378 A CN 1817378A
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Abstract
An air-oxygen mixing system for the intelligent respiratory machine without compressed air features that the one-way valve, flow sensor and turbine pressurizer are sequentially installed at the air inlet of Venturi device, the electric proportional valve is connected to the high-pressure inlet of Venturi device for controlling the flow of high-pressure oxygen, and another oxygen channel with electric proportional valve and flow sensor is mixed with the mixed gas from Venturi device in the air mixer for supplying the air-oxygen mixture to patient.
Description
Affiliated technical field
The present invention relates to a kind of medical breathing machine, particularly a kind of air suction inlet at the respirator Venturi increases turbo charging installation, realizes the empty oxygen hybrid system of accurate control breathing machine output oxygen flow and oxygen concentration.
Background technology
Traditional empty oxygen mixer has three kinds: wherein a kind of is to output to patient by the two-way gases at high pressure that Central oxygen-supply and medical air compressor provide after empty oxygen mixing and Flow-rate adjustment, owing to adopt compressor, defective such as have that noise is big, power consumption is big, need dewater, cost height, volume are big causes the respirator system volume bigger.
Second kind is external no friction piston (or turbine) technology that adopts, and is transported to patient after the oxygen mix, and this matching requirements piston valve (or turbine) provides more high-power, otherwise does not reach ventilation requirement.
The third is traditional venturi technology, the method of carrying air during with the hyperbaric oxygen gas jet, because its volume is little, low in energy consumption and be used widely, but because oxygen concentration can only be about 40% when minimum, and oxygen concentration increases with airway resistance, Gao Shike crosses about 60%, the oxygen concentration instability, error is big, and is uncontrollable.
Summary of the invention
The present invention seeks to overcome shortcomings such as power consumption is big in the prior art, volume is big, noise is big, oxygen concentration is uncontrollable, a kind of proportion control technology of utilizing venturi and small-power turbine to combine is provided, in conjunction with accurate flow transducer and proportional control apparatus, by the pressure of intelligent control system control oxygen, venturi driving gas (oxygen) and air suction inlet turbine, realize the empty oxygen hybrid system of accurate control breathing machine output gas flow of gas and oxygen concentration.
In order to reach above-mentioned technical purpose, the technical solution adopted in the present invention is:
Existing Venturi is transformed, at its air suction inlet check valve, flow transducer and turbo charging installation are installed successively, improve venturi suction inlet air pressure, its delivery outlet also is equipped with flow transducer; One road high pressure oxygen links to each other with the venturi high pressure feed by electronically controlled proportional valve;
Another road pure oxygen passage is provided with continuous electronically controlled proportional valve and flow transducer, and this road pure oxygen flows to patient with above-mentioned mist by Venturi output after empty oxygen mixer mixes;
The flow transducer detecting air flow of venturi air suction inlet, flow transducer on the pure oxygen passage is surveyed the pure oxygen flow, the delivery outlet flow transducer is surveyed mixed gas flow, by the output flow of microcomputer control system metering, computing and feedback control electronically controlled proportional valve and the output pressure of turbo charging installation, thus the accurate control of realization output flow and oxygen concentration.
Compared with prior art, the invention has the beneficial effects as follows: the kinetic energy that has made full use of venturi principle has reduced the power consumption of product, by increasing the defective that the small-power turbo charging installation has remedied venturi, develop to intelligent, multi-functional, high accuracy, aspect such as applied widely.Utilize the control foundation of the signal of flow transducer detection as proportional control valve, control accuracy is taken at the precision of pick off and the resolution of proportional control valve.Owing to adopted Microcomputer Controling Technique, made that the technical program is easy to realize.This sky oxygen hybrid system is low in energy consumption, intelligent control, and the precision height, gas componant is stable, has improved the clinical result of use of respirator.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Among Fig. 1, electronically controlled proportional valve 1,2, flow transducer 3,5,9, turbo charging installation 4, check valve 6, venturi 7, empty oxygen mixer 8, microcomputer control system 10.
The specific embodiment
Empty oxygen hybrid system as shown in Figure 1 is that the air suction inlet at venturi 7 connects check valve 6 and flow transducer 5, is connected with automatically controlled turbo charging installation 4 then, connects flow transducer 9 at venturi 7 delivery outlets; High pressure oxygen also links to each other with venturi 7 high pressure feeds by electronically controlled proportional valve 2.Flow transducer 5 is surveyed intake air flow, flow transducer 9 is surveyed mixed gas flow, calculate the oxygen concentration of the flow transducer 9 of flowing through by microcomputer control system 10, control the flow of electronically controlled proportional valve 2 and the pressure of turbo charging installation 4 then respectively, make the output oxygen concentration be lower than 30%.Another road pure oxygen mixes in empty oxygen mixer 8 by the mist of electronically controlled proportional valve 1 through exporting with venturi 7 behind the flow transducer 3.Flow transducer 3 is surveyed the pure oxygen flow, and flow transducer 9 is surveyed the flow of 30% oxygen concentration, calculates and control respectively the flow of electronically controlled proportional valve 1 and electronically controlled proportional valve 2 by micro computer, thereby realizes the adjusting of output total flow and oxygen concentration.
Claims (2)
1, a kind of non-compressed air mixing system of intelligent respirator is characterized in that:
The air suction inlet of Venturi (7) is equipped with check valve (6), flow transducer (5) and turbo charging installation (4) successively, and its delivery outlet is equipped with flow transducer (9); One road high pressure oxygen links to each other with Venturi (7) high pressure feed by electronically controlled proportional valve (2);
Another road pure oxygen passage is provided with electronically controlled proportional valve (1) and flow transducer (3), and this road pure oxygen flows to patient with above-mentioned mist by Venturi output after empty oxygen mixer (8) mixes;
Flow transducer (5) detecting air flow, quantity sensor (3) is surveyed the pure oxygen flow, flow transducer (9) is surveyed mixed gas flow, stream is by the output flow of microcomputer control system (10) metering, computing and feedback control electronically controlled proportional valve (1), (2) and the output pressure of turbo charging installation (4), thus the accurate control of realization output flow and oxygen concentration.
2, non-compressed air mixing system of intelligent respirator according to claim 1 is characterized in that: empty oxygen mixing device output oxygen concentration adjustable extent is at least 30%-100%, and precision is ± 8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100387518A CN100522278C (en) | 2006-03-10 | 2006-03-10 | Non-compressed air mixing system of intelligent respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100387518A CN100522278C (en) | 2006-03-10 | 2006-03-10 | Non-compressed air mixing system of intelligent respirator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1817378A true CN1817378A (en) | 2006-08-16 |
| CN100522278C CN100522278C (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100387518A Expired - Fee Related CN100522278C (en) | 2006-03-10 | 2006-03-10 | Non-compressed air mixing system of intelligent respirator |
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| CN (1) | CN100522278C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101721767A (en) * | 2008-10-23 | 2010-06-09 | 北京谊安医疗系统股份有限公司 | Turbotype electrical respirator |
| CN101507854B (en) * | 2009-03-23 | 2011-04-20 | 王中 | Respirator air-oxygen mixing device with compressed air |
| CN102506954A (en) * | 2011-12-01 | 2012-06-20 | 于邦仲 | Water removal system of flow sensor |
| CN102500020A (en) * | 2011-09-28 | 2012-06-20 | 于邦仲 | Pilot-operated type control air channel system of breathing machine |
| CN103055397A (en) * | 2011-10-18 | 2013-04-24 | 北京谊安医疗系统股份有限公司 | Control method and control device for breathing machine oxygen concentration |
| CN104857607A (en) * | 2015-05-26 | 2015-08-26 | 深圳市安保科技有限公司 | Oxygen concentration calibration device |
| CN104941043A (en) * | 2015-07-16 | 2015-09-30 | 深圳市普博科技有限公司 | Calibration method and system for Venturi device |
| CN107096104A (en) * | 2017-06-08 | 2017-08-29 | 湖南明康中锦医疗科技发展有限公司 | A kind of Oxygen therapy apparatus and its nasal tube road |
| CN107812293A (en) * | 2012-04-05 | 2018-03-20 | 费雪派克医疗保健有限公司 | Respiratory auxiliary system |
| CN108348714A (en) * | 2015-09-29 | 2018-07-31 | 皇家飞利浦有限公司 | The method of pressure and gas mixing control for invasive ventilation |
| US11433210B2 (en) | 2014-05-27 | 2022-09-06 | Fisher & Paykel Healthcare Limited | Gases mixing and measuring for a medical device |
| US11666720B2 (en) | 2015-12-02 | 2023-06-06 | Fisher & Paykel Healthcare Limited | Flow path sensing for flow therapy apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10583263B2 (en) | 2012-08-23 | 2020-03-10 | Fisher & Paykel Healthcare Limited | Respiratory assistance apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2831856B2 (en) * | 1978-07-20 | 1981-07-02 | Drägerwerk AG, 2400 Lübeck | Arrangement for electrically controlled dosing and mixing of gases |
-
2006
- 2006-03-10 CN CNB2006100387518A patent/CN100522278C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101721767A (en) * | 2008-10-23 | 2010-06-09 | 北京谊安医疗系统股份有限公司 | Turbotype electrical respirator |
| CN101507854B (en) * | 2009-03-23 | 2011-04-20 | 王中 | Respirator air-oxygen mixing device with compressed air |
| CN102500020A (en) * | 2011-09-28 | 2012-06-20 | 于邦仲 | Pilot-operated type control air channel system of breathing machine |
| CN103055397A (en) * | 2011-10-18 | 2013-04-24 | 北京谊安医疗系统股份有限公司 | Control method and control device for breathing machine oxygen concentration |
| CN102506954A (en) * | 2011-12-01 | 2012-06-20 | 于邦仲 | Water removal system of flow sensor |
| US10980967B2 (en) | 2012-04-05 | 2021-04-20 | Fisher & Paykel Healthcare Limited | Respiratory assistance apparatus |
| CN107812293A (en) * | 2012-04-05 | 2018-03-20 | 费雪派克医疗保健有限公司 | Respiratory auxiliary system |
| US11918748B2 (en) | 2012-04-05 | 2024-03-05 | Fisher & Paykel Healthcare Limited | Respiratory assistance apparatus |
| US11433210B2 (en) | 2014-05-27 | 2022-09-06 | Fisher & Paykel Healthcare Limited | Gases mixing and measuring for a medical device |
| CN104857607B (en) * | 2015-05-26 | 2017-09-05 | 深圳市安保科技有限公司 | A kind of oxygen concentration calibrating installation |
| CN104857607A (en) * | 2015-05-26 | 2015-08-26 | 深圳市安保科技有限公司 | Oxygen concentration calibration device |
| CN104941043A (en) * | 2015-07-16 | 2015-09-30 | 深圳市普博科技有限公司 | Calibration method and system for Venturi device |
| CN104941043B (en) * | 2015-07-16 | 2017-08-04 | 深圳市普博科技有限公司 | The calibration method and system of a kind of Venturi |
| CN108348714A (en) * | 2015-09-29 | 2018-07-31 | 皇家飞利浦有限公司 | The method of pressure and gas mixing control for invasive ventilation |
| US11666720B2 (en) | 2015-12-02 | 2023-06-06 | Fisher & Paykel Healthcare Limited | Flow path sensing for flow therapy apparatus |
| CN107096104A (en) * | 2017-06-08 | 2017-08-29 | 湖南明康中锦医疗科技发展有限公司 | A kind of Oxygen therapy apparatus and its nasal tube road |
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| Publication number | Publication date |
|---|---|
| CN100522278C (en) | 2009-08-05 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU LANDWIND KAITAI MEDICAL EQUIPMENT CO., LTD Free format text: FORMER NAME: JIANGSU KAITAI MEDICAL EQUIPMENT CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Jiang Hua Zhen new town centre street 225444 No. 165 Jiangsu city of Taixing Province Patentee after: Jiangsu Landwind & KaiTai Medical Equipment Co., Ltd. Address before: Jiang Hua Zhen new town centre street 225452 No. 165 Jiangsu city of Taixing Province Patentee before: Jiangsu Kaitai Medical Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20170310 |