CN102500024A - Flow detection system of respirator - Google Patents
Flow detection system of respirator Download PDFInfo
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- CN102500024A CN102500024A CN2011103924262A CN201110392426A CN102500024A CN 102500024 A CN102500024 A CN 102500024A CN 2011103924262 A CN2011103924262 A CN 2011103924262A CN 201110392426 A CN201110392426 A CN 201110392426A CN 102500024 A CN102500024 A CN 102500024A
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Abstract
The invention relates to a flow detection system of a respirator. The flow detection system comprises first, second, third and fourth two-position three-way electromagnetic valves (SOV2, SOV3, SOV6, SOV7), first and second electromagnetic valves (SOV4, SOV5) and a control unit, wherein an air passage at a first air inlet end of each of the two-position three-way electromagnetic valves is respectively communicated with a detection branch air passage in the two-position three-way electromagnetic valve, a second air inlet end of each of the two-position three-way electromagnetic valves is communicated with outside atmosphere, and an air outlet end of each of the two-position three-way electromagnetic valves is communicated with a detection port corresponding to a respective flow sensor; lateral air passages at the air outlet ends of the magnetic valves are communicated with a pipeline between an external detection branch interface and a second flow sensor, and the air inlet ends of the electromagnetic valves are communicated with high-pressure gas; and the control unit is used for controlling the first, the second, the third and the fourth two-position three-way electromagnetic valves to communicate with the corresponding flow sensors and the outside atmosphere for performing program zero calibration, or controlling the first and the second electromagnetic valves to open for removing water, or controlling the first, the second, the third and the fourth two-position three-way electromagnetic valves to communicate with the corresponding flow sensors and a detection air passage and closing the first and the second electromagnetic valves for flow detection.
Description
Technical field
The present invention relates to armarium, be specifically related to a kind of respirator flow quantity detecting system.
Background technology
The tradition respirator, gas circuit structure is as shown in Figure 1, and its flow quantity detecting system comprises inner the detection and external detection, is made up of first flow pick off, second flow transducer and first flow sensor probe FQ1 and second flow transducer probe FQ2.Because this flow quantity detecting system and whole respirator gas circuit are together, be difficult to carry out customary on-line calibration.Though also can calibrate, certainly will influence the normal use or the flow detection precision of respirator.On the other hand; External detection is near user, because the cold and hot irregular inner water that coagulates of second flow transducer probe FQ2 that makes especially detects a gas circuit and coagulates water; It is inaccurate to cause second flow transducer to detect; Accuracy of detection is not enough, accurately control thereby influence respirator, and these technology in respirator, also do not occur or correlation technique also is not disclosed.
Summary of the invention
The technical issues that need to address of the present invention are, how a kind of respirator flow quantity detecting system is provided, and the automatic on-line routine calibration can convenient, promptly be provided.
The above-mentioned technical problem of the present invention solves like this: make up a kind of respirator flow quantity detecting system; Comprise that first flow pick off and gas circuit that gas circuit is communicated with first flow sensor probe on the inner main gas circuit are communicated with second flow transducer of the first outer detection branch interface and the second outer detection branch interface on the respirator shell; It is characterized in that this flow quantity detecting system also comprises:
First two-position three way magnetic valve, its first inlet end gas circuit is communicated with the first detection hole of first flow sensor probe, and second inlet end is communicated with outside atmosphere, and the outlet side is communicated with first of first flow pick off and detects mouth;
Second two-position three way magnetic valve, its first inlet end gas circuit are communicated with the second interior hole of detecting of first flow sensor probe, and second inlet end is communicated with outside atmosphere, and the outlet side is communicated with second of first flow pick off and detects mouth;
The 3rd two-position three way magnetic valve, its first inlet end gas circuit is communicated with the first outer detection branch interface, and second inlet end is communicated with outside atmosphere, and the outlet side is communicated with first of second flow transducer and detects mouth;
The 4th two-position three way magnetic valve, its first inlet end gas circuit is communicated with the second outer detection branch interface, and second inlet end is communicated with outside atmosphere, and the outlet side is communicated with second of second flow transducer and detects mouth;
Control unit; Be electrically connected the control end of first two-position three way magnetic valve, the control end of second two-position three way magnetic valve, the control end of the 3rd two-position three way magnetic valve and the control end of the 4th two-position three way magnetic valve; Be used to control first two-position three way magnetic valve and second two-position three way magnetic valve gas circuit connection first flow pick off and first flow sensor probe and carry out the inner stream flow detection; Perhaps control first two-position three way magnetic valve and the second two-position three way magnetic valve gas circuit be communicated with the first flow pick off with outside atmosphere, that to be datum mark with the outside atmosphere carry out the program school to the first flow pick off then is zero; Perhaps control the 3rd two-position three way magnetic valve and the 4th two-position three way magnetic valve gas circuit and be communicated with second flow transducer and said outer detection branch interface and carry out external flow and detect, perhaps control the 3rd two-position three way magnetic valve and the 4th two-position three way magnetic valve gas circuit be communicated with second flow transducer with outside atmosphere, that to be datum mark with the outside atmosphere carry out the program school to second flow transducer then is zero.
According to respirator flow quantity detecting system provided by the invention, this flow quantity detecting system also comprises:
First electromagnetic valve, the other gas circuit in outlet side is communicated with the pipeline that first of the first outer detection branch interface and second flow transducer detects between the mouth, and inlet end is communicated with gases at high pressure;
Second electromagnetic valve, the other gas circuit in outlet side is communicated with the pipeline that second of the second outer detection branch interface and second flow transducer detects between the mouth, and inlet end is communicated with gases at high pressure;
Said control unit also is electrically connected the control end of first electromagnetic valve and the control end of second electromagnetic valve, also is used to control first electromagnetic valve and second electromagnetic valve and opens and utilize said gases at high pressure to dewater and when said external flow detects, control first electromagnetic valve and second closed electromagnetic valve.
According to respirator flow quantity detecting system provided by the invention; Said gases at high pressure comprise dual gas supply; Be communicated with high pressure oxygen through first check valve and a corresponding gas circuit; Be communicated with pressure-air through second check valve and corresponding gas circuit, the outfan of the outfan of first check valve and second check valve is interconnected and exports through same pipeline gas circuit.
According to respirator flow quantity detecting system provided by the invention, said flow transducer is differential pick off.
According to respirator flow quantity detecting system provided by the invention, said control unit also is electrically connected the first flow pick off and second flow transducer.
According to respirator flow quantity detecting system provided by the invention, said control unit is the single-chip microcomputer of built-in control sequence.
Respirator flow quantity detecting system provided by the invention adopts Electronic Control, and after using certain hour, do not need in time of flow detection can flow sensor to calibrate automatically and dewater, prior art has following advantage relatively:
1, need not from machine, remove or stop operate as normal carrying out Equipment Alignment or dewaters;
2, ability autotest routine, accuracy of detection height and reliable;
3, prolong flow transducer and probe service time and life-span.
Description of drawings
Further the present invention is elaborated below in conjunction with accompanying drawing and specific embodiment.
Fig. 1 is traditional respirator gas circuit structure sketch map;
Fig. 2 is the respirator gas circuit structure sketch map that flow quantity detecting system of the present invention is set.
The specific embodiment
The respirator flow quantity detecting system of the specific embodiment of the invention; Gas circuit structure is as shown in Figure 2; On the basis of traditional respirator flow quantity detecting system, detecting with external detection in inside has all increased automatic calibrated section, and externally detects and also increased automatically except that water section.Wherein:
(1) automatic calibrated section
Comprise two-position three way magnetic valve SOV2, SOV3, SOV6 and SOV7 that four the present invention increase newly; They select to be communicated with first flow sensor probe FQ1 and second flow transducer probe FQ2 separately to the first flow pick off and second flow transducer respectively through corresponding gas circuit, perhaps are communicated with the outside atmosphere that the present invention increases connection.When the first flow pick off is communicated with second flow transducer probe FQ2 with first flow sensor probe FQ1 connected sum second flow transducer; Then carry out inside and outside flow detection respectively, the first flow pick off and second flow transducer then carry out program school zero separately when being communicated with outside atmosphere.Second flow transducer probe FQ2 is an external devices, selected also to connect second flow transducer through two outside bronchus when needed by the user, and input is communicated with the output of respirator master gas circuit through free breather valve PEEP, and the outfan gas circuit is communicated with user.
(2) remove water section automatically
Two two-position three way magnetic valve SOV4 that comprise that the present invention increases newly and SOV5, and the high-pressure air source that constitutes of two check valve CV4 that increase newly by the present invention and CV5.Wherein: two two-position three way magnetic valve SOV4 and SOV5 are communicated with the selection in the two of second flow transducer and flow transducer probe FQ2 and high-pressure air source.When two-position three way magnetic valve SOV4, SOV5, SOV6 and SOV7 select to be communicated with second flow transducer and second flow transducer probe FQ2, carry out external flow and detect, then dewater when being communicated with high-pressure air source.Two check valve CV4 and CV5 introduce high pressure oxygen or pressure-air, because during respirator work, have a kind of in high pressure oxygen and the pressure-air or two kinds all the time, so high-pressure air source are available always.
The respirator flow quantity detecting system of the specific embodiment of the invention also comprises the circuit control section, and its flow detection principle is: control two-position three way magnetic valve SOV2, SOV3, SOV4, SOV5, SOV6 and SOV7 are communicated with corresponding flow transducer and carry out inside or external flow detection with its detection gas circuit when operate as normal; Be communicated with corresponding flow transducer and outside atmosphere in the operate as normal gap or when stopping using and carry out program zero or be communicated with gases at high pressure and the external detection gas circuit dewatered with the detection gas circuit, thus the precision of the machine flow detection that ensures respiration.
The above is merely preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.
Claims (6)
1. respirator flow quantity detecting system; Comprise that first flow pick off and gas circuit that gas circuit is communicated with first flow sensor probe (FQ1) on the inner main gas circuit are communicated with second flow transducer of the first outer detection branch interface and the second outer detection branch interface on the respirator shell; It is characterized in that this flow quantity detecting system also comprises:
First two-position three way magnetic valve (SOV2), its first inlet end gas circuit is communicated with the first detection hole of first flow sensor probe (FQ1), and second inlet end is communicated with outside atmosphere, and the outlet side is communicated with first of first flow pick off and detects mouth;
Second two-position three way magnetic valve (SOV3), its first inlet end gas circuit is communicated with the second detection hole of first flow sensor probe (FQ1), and second inlet end is communicated with outside atmosphere, and the outlet side is communicated with second of first flow pick off and detects mouth;
The 3rd two-position three way magnetic valve (SOV6), its first inlet end gas circuit is communicated with the first outer detection branch interface, and second inlet end is communicated with outside atmosphere, and the outlet side is communicated with first of second flow transducer (FQ2) and detects mouth;
The 4th two-position three way magnetic valve (SOV7), its first inlet end gas circuit is communicated with the second outer detection branch interface, and second inlet end is communicated with outside atmosphere, and the outlet side is communicated with second of second flow transducer (FQ2) and detects mouth;
Control unit; Be electrically connected the control end of first two-position three way magnetic valve (SOV2), the control end of second two-position three way magnetic valve (SOV3), the control end of the 3rd two-position three way magnetic valve (SOV6) and the control end of the 4th two-position three way magnetic valve (SOV7); Be used to control first two-position three way magnetic valve and second two-position three way magnetic valve gas circuit connection first flow pick off and first flow sensor probe (FQ1) and carry out the inner stream flow detection; Perhaps control first two-position three way magnetic valve (SOV2) and second two-position three way magnetic valve (SOV3) gas circuit be communicated with the first flow pick off with outside atmosphere, that to be datum mark with the outside atmosphere carry out the program school to the first flow pick off then is zero; Perhaps control the 3rd two-position three way magnetic valve (SOV6) and the 4th two-position three way magnetic valve (SOV7) gas circuit and be communicated with second flow transducer and said outer detection branch interface and carry out external flow and detect, it is zero to control perhaps that the 3rd two-position three way magnetic valve (SOV6) and the 4th two-position three way magnetic valve (SOV7) gas circuit are communicated with second flow transducer and outside atmosphere, to be datum mark with the outside atmosphere carry out the program school to second flow transducer then.
2. according to the said respirator flow quantity detecting system of claim 1, it is characterized in that this flow quantity detecting system also comprises:
First electromagnetic valve (SOV4), the other gas circuit in outlet side is communicated with the pipeline that first of the first outer detection branch interface and second flow transducer detects between the mouth, and inlet end is communicated with gases at high pressure;
Second electromagnetic valve (SOV5), the other gas circuit in outlet side is communicated with the pipeline that second of the second outer detection branch interface and second flow transducer detects between the mouth, and inlet end is communicated with gases at high pressure;
Said control unit also is electrically connected the control end of first electromagnetic valve (SOV4) and the control end of second electromagnetic valve (SOV5); Also be used to control first electromagnetic valve (SOV4) and second electromagnetic valve (SOV5) and open and utilize said gases at high pressure to dewater, and when said external flow detects, control first electromagnetic valve and second closed electromagnetic valve.
3. according to the said respirator flow quantity detecting system of claim 2; It is characterized in that; Said gases at high pressure comprise dual gas supply; Be communicated with high pressure oxygen and pass through second check valve (CV5) and corresponding gas circuit connection pressure-air through first check valve (CV4) and the corresponding gas circuit of propping up, the outfan of the outfan of first check valve (CV4) and second check valve (CV5) is communicated with and exports through same pipeline gas circuit.
4. according to the said respirator flow quantity detecting system of claim 1, it is characterized in that said flow transducer is differential pick off.
5. according to the said respirator flow quantity detecting system of claim 1, it is characterized in that said control unit also is electrically connected the first flow pick off and second flow transducer.
6. according to claim 1 or 5 said respirator flow quantity detecting systems, it is characterized in that said control unit is the single-chip microcomputer of built-in control sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110392426.2A CN102500024B (en) | 2011-12-01 | 2011-12-01 | Flow detection system of respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110392426.2A CN102500024B (en) | 2011-12-01 | 2011-12-01 | Flow detection system of respirator |
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| Publication Number | Publication Date |
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| CN102500024A true CN102500024A (en) | 2012-06-20 |
| CN102500024B CN102500024B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110392426.2A Expired - Fee Related CN102500024B (en) | 2011-12-01 | 2011-12-01 | Flow detection system of respirator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258491A (en) * | 2014-09-03 | 2015-01-07 | 南京舒普思达医疗设备有限公司 | Breathing machine sampling pipe water removing method and device |
| CN104874085A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Self-test method of oxygen electromagnetic valve set for respirators and respirator |
| CN112045548A (en) * | 2020-08-24 | 2020-12-08 | 华海清科股份有限公司 | Wafer bearing device for chemical mechanical polishing and chemical mechanical polishing equipment |
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| US5918597A (en) * | 1998-01-15 | 1999-07-06 | Nellcor Puritan Bennett | Peep control in a piston ventilator |
| US6289890B1 (en) * | 1998-03-20 | 2001-09-18 | Valley Inspired Products, Llc | Portable rescue breathing device |
| US6892726B1 (en) * | 1998-12-08 | 2005-05-17 | Instrumentarium Corp. | Arrangement in connection with equipment used in patient care |
| CN1777454A (en) * | 2003-04-22 | 2006-05-24 | 医疗物理有限公司 | MRI/NMR-compatible,tidal volume control and measurement systems,methods,and devices for respiratory and hyperpolarized gas delivery |
| CN101310790A (en) * | 2007-06-28 | 2008-11-26 | 北京谊安医疗系统股份有限公司 | Multifunctional safety valve |
| CN101312761A (en) * | 2005-09-21 | 2008-11-26 | 因诺治疗有限责任公司 | System and method of administering a pharmaceutical gas to a patient |
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2011
- 2011-12-01 CN CN201110392426.2A patent/CN102500024B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5918597A (en) * | 1998-01-15 | 1999-07-06 | Nellcor Puritan Bennett | Peep control in a piston ventilator |
| US6289890B1 (en) * | 1998-03-20 | 2001-09-18 | Valley Inspired Products, Llc | Portable rescue breathing device |
| US6892726B1 (en) * | 1998-12-08 | 2005-05-17 | Instrumentarium Corp. | Arrangement in connection with equipment used in patient care |
| CN1777454A (en) * | 2003-04-22 | 2006-05-24 | 医疗物理有限公司 | MRI/NMR-compatible,tidal volume control and measurement systems,methods,and devices for respiratory and hyperpolarized gas delivery |
| CN101312761A (en) * | 2005-09-21 | 2008-11-26 | 因诺治疗有限责任公司 | System and method of administering a pharmaceutical gas to a patient |
| CN101310790A (en) * | 2007-06-28 | 2008-11-26 | 北京谊安医疗系统股份有限公司 | Multifunctional safety valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874085A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Self-test method of oxygen electromagnetic valve set for respirators and respirator |
| CN104874085B (en) * | 2014-02-28 | 2018-11-16 | 北京谊安医疗系统股份有限公司 | The self checking method and ventilator of oxygen solenoid valve for ventilator |
| CN104258491A (en) * | 2014-09-03 | 2015-01-07 | 南京舒普思达医疗设备有限公司 | Breathing machine sampling pipe water removing method and device |
| CN112045548A (en) * | 2020-08-24 | 2020-12-08 | 华海清科股份有限公司 | Wafer bearing device for chemical mechanical polishing and chemical mechanical polishing equipment |
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| CN102500024B (en) | 2014-06-25 |
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