CN101983738A - Pressure control valve for breathing machine - Google Patents
Pressure control valve for breathing machine Download PDFInfo
- Publication number
- CN101983738A CN101983738A CN2010105622794A CN201010562279A CN101983738A CN 101983738 A CN101983738 A CN 101983738A CN 2010105622794 A CN2010105622794 A CN 2010105622794A CN 201010562279 A CN201010562279 A CN 201010562279A CN 101983738 A CN101983738 A CN 101983738A
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- motor
- spool
- air distribution
- distribution sliding
- 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.)
- Granted
Links
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
The invention relates to a control valve for adjusting air channel pressure and flow of a breathing machine. The control valve comprises a valve body, a valve core, an air distribution sliding sleeve, a motor and a fan exhaust pipe. The control valve is characterized in that: the motor is provided with a motor shock-proof sleeve and a motor sleeve, a motor shaft is provided with a magnetic coil and a Hall sensor, the outer side of the valve core is provided with the air distribution sliding sleeve, a certain movable clearance is formed between the valve core and the air distribution sliding sleeve, a rack is fixedly connected on the air distribution sliding sleeve, a guide rail is arranged below the rack, and the rack is engaged with a motor gear; the air distribution sliding sleeve is provided with a positioning sensor, a sealing ring and a sealing cover; the middle of the hollow valve core is provided with a partition board, and the valve core on two sides of the partition board is provided with an exhaust hole and an air inlet respectively; the same circumference of the air distribution sliding sleeve is provided with at least two air distribution holes; and the air distribution holes can respond to the exhaust hole and the air inlet on the valve core respectively. The control valve has the advantages of simple structure, low cost, low noise during use, safety, reliability and capability of realizing stepless voltage adjustment.
Description
Technical field
The invention belongs to technical field of medical instruments, particularly relate to a kind of control valve that is used for respirator gas circuit pressure and Flow-rate adjustment.
Background technology
Sleep-apnea (Sleep Apnea Syndrome.SAS) is a kind of common and sleep disordered breathing disease of coming into one's own day by day.China SAS patient is more than 2,000 ten thousand. and its sickness rate in the adult is very high, and especially its sickness rate of old people is about 50%.Snoring, Fa Zuo hypopnea or asphyxia repeatedly when its 1 clinical manifestation is sleep.SAS has a strong impact on patient and other people sleep quality. and severe patient can cause the complication of important vital organs such as cardio-cerebral-pulmo and kidney.Treatment to SAS can be adopted methods such as continuous positive airway pressure, behavior therapy, operative treatment and Drug therapy, and wherein the continuous positive airway pressure treatment has become the generally acknowledged the most effective and safe method of SAS treatment.
The key that sleep apnea takes place is the stenosis or occlusion of air flue, the various noinvasive ventilators of therefore treating SAS are all based on a kind of like this ultimate principle: suitable Positive Airway Pressure is provided when the patient sleeps, it is unimpeded with the air-flow that ensures respiration to strut air flue, reaches the purpose of eliminating apnea.The characteristics of this kind machine are that the pressure of inspiratory phase and expiratory phase can be regulated respectively, and the sleep machine is sent higher default pressure of inspiration(Pi) when promptly air-breathing, help the patient with in the more gas suction body; During expiration, the sleep machine is converted to default lower expiratory pressure automatically, and the patient is easy to the gas in the lung is breathed out.
Breather valve mainly adopts turbofan that airborne gas is pressed into internal cavity at present, by breather valve air-flow is transported to the flexible pipe place again, be transported to patient's face shield part again by flexible pipe, to reach the effect that patient is applied gas pressure, when patient was in the expiration state, gas direction to breather valve from face shield flowed, and need switch this time to valve, the cavity of patient end is communicated with air vent, the gas of breathing out is arranged to atmosphere.Another kind of breather valve adopts the structure of air inlet driving device, air driving device in the prior art, by the direct switching of valve at several cavitys, can not realize stepless adjust blood pressure process, pressure in the breathing process can only be regulated by the speed of blower fan, pressure in the exhaust process is then regulated by the aperture of delivery outlet, has caused and has breathed the difficulty that phase pressure is regulated; Because what adopt is direct switching, the centre does not have transient process, causes air pressure directly to communicate with lower from height, produces very big noise, therefore need install silencing means additional, has not only improved noise, has increased cost yet.
Summary of the invention
That the object of the invention is to provide is simple in structure, with low cost, noise is little, safe, reliable, can realize the breather valve that is used for respirator gas circuit pressure and Flow-rate adjustment of stepless voltage regulation.
The objective of the invention is to adopt such technical solution to realize: it comprises valve body, spool, the distribution sliding sleeve, motor and blower fan exhaustor, described valve body is provided with blowing mouth, described spool is fixedly installed in the valve body intracavity, the two ends of spool are respectively equipped with blower fan exhaustor and back cavity, on the described motor gear is installed, it is characterized in that motor is provided with motor anti-vibration sleeve and motor cover, motor shaft is provided with magnetosphere and Hall element, the described spool outside is provided with the distribution sliding sleeve, between spool and the distribution sliding sleeve certain free gap is arranged, be connected with tooth bar on the distribution sliding sleeve, the tooth bar below is provided with guide rail, this tooth bar is meshed with motor gear, the distribution sliding sleeve is provided with alignment sensor and sealing ring and lid, is provided with dividing plate in the middle of the spool of described hollow, is respectively equipped with steam vent and air inlet on the spool of dividing plate both sides, at least be provided with two air distribution holes on the same circumference of distribution sliding sleeve, the air distribution hole on the described distribution sliding sleeve can be corresponding respectively with steam vent and air inlet on the spool.
The present invention compares with background technology, because dividing plate is set in spool, clearance fit has the distribution sliding sleeve on the spool, and the distribution sliding sleeve on demand can be respectively with the steam vent of spool with air inlet is corresponding, the structure of pick off is set on the distribution sliding sleeve, when valve is in maximum ventilation or maximum reflux state, this pick off provides framing signal, and control circuit makes motor reciprocating in the stroke range that presets.Motor shaft is provided with the reliability that magnetosphere and Hall element can be guaranteed machine operation, when motor blocks, promptly reports to the police after sensor arrives, and the guide rail that the tooth bar below is provided with can stop distribution to slide under the effect of gear radial force and rotate around spool.All these are for effectively controlling gas flow and regulating air pressure and created condition, and it is one of desirable control valve that is used at present respirator gas circuit pressure and Flow-rate adjustment, has characteristics such as noise is little, safe, reliable.
Description of drawings
Fig. 1 is a plan structure sketch map of the present invention
Fig. 2 is a side-looking structural representation of the present invention
Fig. 3 is the structural representation of facing of the present invention
Fig. 4 is a partial structurtes sketch map of the present invention
Label declaration: 1. cover, 2. Hall element, 3. sensor holder, 4. valve body, 5. gear reflux, 6. motor cover, 7. motor anti-vibration sleeve, 8. magnetosphere, 9. motor, 10. guide rail, 11. return port, 12. spools, 13. blower fan exhaustors, 14. steam vents, 15. distribution sliding sleeves, 16. air distribution hole, 17. sealing rings, 18. alignment sensors, 19. sender unit caps, 20. tooth bar, 21. screws, 22. sealing rings, 23. back cavities, 24. blowing mouth, 25. anti-vibration sleeves, 26. hold-down screws, 27. dividing plates.
The specific embodiment
With reference to accompanying drawing 1, the present invention includes valve body 4, spool 12, distribution sliding sleeve 15, motor 9 and blower fan exhaustor 13, described valve body is provided with blowing mouth 24, described spool 12 is fixedly installed in valve body 4 intracavity, the two ends of spool 12 are respectively equipped with blower fan exhaustor 13 and back cavity 23, on the described motor 9 gear 5 is installed, it is characterized in that motor 9 is provided with motor anti-vibration sleeve 7, motor cover 6, with screw 21 motor cover 6 is fixed on motor anti-vibration sleeve 7 outsides, 9 in motor is provided with magnetosphere 8 and Hall element 2, described spool 12 outsides are provided with distribution sliding sleeve 15, between spool 12 and the distribution sliding sleeve 15 certain free gap is arranged, be connected with tooth bar 20 on the distribution sliding sleeve 15, tooth bar 20 belows are provided with guide rail 10, this tooth bar 20 is meshed with motor gear 5, distribution sliding sleeve 15 is provided with alignment sensor 18 and sensor holder 3 and sealing ring and covers 22, be provided with dividing plate 27 in the middle of the spool 12 of described hollow, be respectively equipped with steam vent 14 and air inlet 11 on the spool 12 of dividing plate 27 both sides, at least be provided with two air distribution holes 16 on the same circumference of distribution sliding sleeve 15, the air distribution hole 16 on the described distribution sliding sleeve 15 can be corresponding respectively with steam vent 14 and air inlet 11 on the spool.
When the present invention uses, pressure-control valve of the present invention is fixed on the respirator with anti-vibration sleeve 25, hold-down screw 26.Motor 9 and induction apparatus 2,18 adopt known mode to be connected to controller.The compressed air that comes out from blower fan enters spool steam vent 11 1 side cavitys through blower fan exhaustor 13, and when the air distribution hole on the distribution sliding sleeve 15 was communicated with steam vent 11, Compressed Gas promptly was transported to patient end from air distribution hole 16 through delivery outlet 24.When patient exhales, blowing mouth 24 increased pressure, motor 9 driven gears 5, drag magnetic stripe 20 and whole distribution cover 15, when air distribution hole 16 on the distribution sliding sleeve 15 is communicated with steam vent 14, compressed air is blocked by dividing plate 27, and the breath of blowing mouth 24 is transported to back cavity 23 from air distribution hole 16 through outlet 14.Because air inlet 11 and steam vent 14 have adopted triangle or fan-shaped, can overlap in the sliding process in distribution, realize that air distribution hole 16 is connected with the electrodeless of steam vent 14 with air inlet 11, reach the purpose of adjusting pressure flow between each cavity.
Claims (1)
1. the pressure-control valve of used for respirators, comprise valve body, spool, the distribution sliding sleeve, motor and blower fan exhaustor, described valve body is provided with blowing mouth, described spool is fixedly installed in the valve body intracavity, the two ends of spool are respectively equipped with blower fan exhaustor and back cavity, on the described motor gear is installed, it is characterized in that motor is provided with motor anti-vibration sleeve and motor cover, motor shaft is provided with magnetosphere and Hall element, the described spool outside is provided with the distribution sliding sleeve, between spool and the distribution sliding sleeve certain free gap is arranged, be connected with tooth bar on the distribution sliding sleeve, the tooth bar below is provided with guide rail, and this tooth bar is meshed with motor gear, and the distribution sliding sleeve is provided with alignment sensor and sealing ring and lid, be provided with dividing plate in the middle of the spool of described hollow, be respectively equipped with steam vent and air inlet on the spool of dividing plate both sides, be provided with two air distribution holes on the same circumference of distribution sliding sleeve at least, the air distribution hole on the described distribution sliding sleeve can be corresponding respectively with steam vent and air inlet on the spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010562279 CN101983738B (en) | 2010-07-20 | 2010-11-21 | Pressure control valve for breathing machine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010231587 | 2010-07-20 | ||
| CN201010231587.9 | 2010-07-20 | ||
| CN 201010562279 CN101983738B (en) | 2010-07-20 | 2010-11-21 | Pressure control valve for breathing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101983738A true CN101983738A (en) | 2011-03-09 |
| CN101983738B CN101983738B (en) | 2013-05-08 |
Family
ID=43640904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010562279 Expired - Fee Related CN101983738B (en) | 2010-07-20 | 2010-11-21 | Pressure control valve for breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101983738B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104906677A (en) * | 2015-05-27 | 2015-09-16 | 阮雪红 | Flow control module capable of automatically correcting valve opening |
| CN106267497A (en) * | 2016-10-24 | 2017-01-04 | 湖南万脉医疗科技有限公司 | A kind of high-accuracy ventilation flow rate control system and medical breathing machine |
| CN106695247A (en) * | 2015-07-28 | 2017-05-24 | 北京谊安医疗***股份有限公司 | Plastic shaft sleeve and metal seat combined machining and surface treatment method |
| CN107847186A (en) * | 2015-07-16 | 2018-03-27 | 皇家飞利浦有限公司 | System and method and respiratory pressure for analyzing epithelium healing support system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4267832A (en) * | 1978-04-18 | 1981-05-19 | Haekkinen Taisto | Expiration valve apparatus for use with a respirator or like apparatus |
| CN101168077A (en) * | 2006-10-23 | 2008-04-30 | 杨福生 | Ventilation proportion valve for respirator |
| CN101584899A (en) * | 2008-05-23 | 2009-11-25 | 沈阳新松维尔康科技有限公司 | Proportional valve for noninvasive ventilator |
| CN201939849U (en) * | 2010-07-20 | 2011-08-24 | 浙江玉升医疗器械股份有限公司 | Pressure control valve for breather |
-
2010
- 2010-11-21 CN CN 201010562279 patent/CN101983738B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4267832A (en) * | 1978-04-18 | 1981-05-19 | Haekkinen Taisto | Expiration valve apparatus for use with a respirator or like apparatus |
| CN101168077A (en) * | 2006-10-23 | 2008-04-30 | 杨福生 | Ventilation proportion valve for respirator |
| CN101584899A (en) * | 2008-05-23 | 2009-11-25 | 沈阳新松维尔康科技有限公司 | Proportional valve for noninvasive ventilator |
| CN201939849U (en) * | 2010-07-20 | 2011-08-24 | 浙江玉升医疗器械股份有限公司 | Pressure control valve for breather |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104906677A (en) * | 2015-05-27 | 2015-09-16 | 阮雪红 | Flow control module capable of automatically correcting valve opening |
| CN104906677B (en) * | 2015-05-27 | 2017-12-19 | 西安汇智医疗集团有限公司 | A kind of flow measurement and control module that can correct valve opening automatically |
| CN107847186A (en) * | 2015-07-16 | 2018-03-27 | 皇家飞利浦有限公司 | System and method and respiratory pressure for analyzing epithelium healing support system |
| CN107847186B (en) * | 2015-07-16 | 2022-02-11 | 皇家飞利浦有限公司 | System and method for analyzing upper airway and respiratory pressure support system |
| CN106695247A (en) * | 2015-07-28 | 2017-05-24 | 北京谊安医疗***股份有限公司 | Plastic shaft sleeve and metal seat combined machining and surface treatment method |
| CN106267497A (en) * | 2016-10-24 | 2017-01-04 | 湖南万脉医疗科技有限公司 | A kind of high-accuracy ventilation flow rate control system and medical breathing machine |
| CN106267497B (en) * | 2016-10-24 | 2018-10-23 | 湖南万脉医疗科技有限公司 | A kind of high-accuracy ventilation flow rate control system and medical breathing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101983738B (en) | 2013-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2688555C (en) | Improvements to resuscitators | |
| US9327092B2 (en) | Ventilation mask with integrated piloted exhalation valve | |
| US8960193B2 (en) | Mobile medical ventilator | |
| AU2008288795B2 (en) | Breathing-gas delivery and sharing system and method | |
| CN201888981U (en) | Breathing valve for breathing machine | |
| CN202366282U (en) | Breathing device for emergency treatment | |
| CN106955401A (en) | Breathable gas air inlet control device for respiratory therapy apparatus | |
| US10166360B2 (en) | System and method for controlling flow during exhalation in a respiratory support system | |
| CN201823138U (en) | Noninvasive respirator device | |
| CN110464951B (en) | High-frequency respirator system and ventilation control method | |
| DE102016122187A1 (en) | High-frequency generator for ventilation and procedures | |
| CN201939849U (en) | Pressure control valve for breather | |
| CN101983738B (en) | Pressure control valve for breathing machine | |
| CN204637206U (en) | A kind of assisted breathing system with expectoration function | |
| CN110464947B (en) | System of high-frequency respirator and ventilation control method | |
| WO2014138125A1 (en) | Ventilation mask with integrated piloted exhalation valve | |
| EP1409054B1 (en) | Device for isolating bias flow | |
| EP3921008B1 (en) | A valve actuation assembly and a system for controlling a supply of gas for inhalation by a user | |
| CN209519200U (en) | Intelligent adjustable one-way exhausting device | |
| CN105963836A (en) | Novel medical breathing machine | |
| CN112704789B (en) | High-frequency oscillation respiratory airflow generation method and respiratory support equipment | |
| CN106267497B (en) | A kind of high-accuracy ventilation flow rate control system and medical breathing machine | |
| CN109621120A (en) | A kind of pipeline and Breathing Suppotion equipment with pulse oxygen inhalation and positive airway pressure function | |
| CN104815379A (en) | Gas pressure flow control valve of sliding-sheet type respirator, and working principle of gas pressure flow control valve | |
| CN210186769U (en) | Anesthetic gas purifies discharging equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20201121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |