WO2013097700A1 - 流量控制比例阀 - Google Patents
流量控制比例阀 Download PDFInfo
- Publication number
- WO2013097700A1 WO2013097700A1 PCT/CN2012/087404 CN2012087404W WO2013097700A1 WO 2013097700 A1 WO2013097700 A1 WO 2013097700A1 CN 2012087404 W CN2012087404 W CN 2012087404W WO 2013097700 A1 WO2013097700 A1 WO 2013097700A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- magnetic
- magnetic core
- flow control
- diaphragm
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/202—Controlled valves electrically actuated
- A61M16/203—Proportional
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/206—Capsule valves, e.g. mushroom, membrane valves
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7758—Pilot or servo controlled
- Y10T137/7761—Electrically actuated valve
Definitions
- the present invention relates to a flow control proportional valve for controlling a large flow rate in a low pressure state, and more particularly to a flow control proportional valve for a ventilator using a low pressure driven air source.
- a ventilator is a device that can replace, control or change a person's normal physiological breathing, increase lung ventilation, improve respiratory function, reduce respiratory power consumption, and save heart reserve. It has become an important instrument for clinical rescue and treatment of various respiratory failures and provides anesthesia and postoperative respiratory support.
- the breathing machine can be divided into: pneumatic electric control ventilator, pneumatic air control ventilator and electric electronically controlled ventilator according to the control mode.
- the electric electronically controlled ventilator uses a low-pressure gas source provided by the turbine as a driving air source, but its trigger sensitivity is low, and the inspiratory response time is long, and often cannot be well synchronized with the patient's breathing. This is because when using a low-pressure drive air source, the flow-type proportional valve used has a small diameter, and can only use a method of directly controlling the rotational speed of the turbine to control the flow of the gas, but the response speed of the turbine cannot keep up, and the turbine Long-term frequent acceleration and deceleration will also affect its service life, so the application of electric electronically controlled ventilators is also limited.
- the object of the present invention is to provide a flow control proportional valve which is suitable for a ventilator for driving a gas source at a low pressure, so that when the pressure of the driving air source is low, the gas flow required for the normal operation of the ventilator can be ensured, and the structure is provided. Simple, fast response, long life and more.
- a flow control proportional valve includes a valve body and a valve core, a valve core is disposed under the valve body, a valve cover is disposed at an upper end of the valve core, and a bottom of the valve cover is connected to an upper end of the connecting rod, the connection
- a coil bobbin is fixedly mounted on a lower end of the rod, an enameled wire is wound on the coil bobbin, and a power supply device is connected to the enameled wire.
- a magnetic core and a magnetic ring are disposed under the coil bobbin, and the magnetic ring is arranged around the magnetic core. And a gap is left between the magnetic core and a magnetic field is formed, and the coil bobbin is sleeved on the magnetic core and placed in a gap between the magnetic core and the magnetic ring.
- a cavity is formed in the valve body, and an air inlet and an air outlet communicating with the cavity are opened on the valve body, and the air inlet is provided with a valve port inside the cavity, and the valve is The port corresponds to the valve cover.
- the magnetic core is an inverted T-shaped structure, and the magnetic ring is disposed around the central portion of the magnetic core and has a gap, and is fixedly mounted on the magnetic core base through the lower end.
- a hole is formed in the middle of the magnetic core, and a lower end of the connecting rod passes through the bobbin and is placed in the through hole, and the bobbin is sleeved on the middle of the magnetic core. Further, the connecting rod is inserted into the through hole in the middle of the magnetic core to be provided with a sleeve.
- the sleeve is made of a material having a low coefficient of friction.
- a gas sealing device is disposed between the valve body and the magnetic core and the magnetic ring, and the gas sealing device includes a diaphragm, a diaphragm holder and a diaphragm cover, and the diaphragm holder and the diaphragm cover
- the plates are stacked and have a central hole in the middle, the connecting rod passes through the central hole of the diaphragm support and the diaphragm cover, and the valve cover is connected at the upper end, and the coil holder is sleeved at the lower end, and the diaphragm is
- the annular structure has an outer edge fixed between the diaphragm support and the diaphragm cover, and the inner edge is fixedly mounted on the connecting rod.
- the upper end of the diaphragm cover is connected to the valve body, and a sealing device is disposed at the connection, the lower end of the diaphragm holder is fixedly connected with the upper end of the upper magnetic seat, and the lower end of the upper magnetic seat is sleeved on the magnetic core And the magnetic ring, and the lower end of the upper magnetic seat is fixed to the upper end of the magnetic ring, and is fixed to the inner side of the magnetic ring through the spacer at the socket.
- the sealing device is a sealing ring.
- a terminal is mounted on the upper end of the upper magnetic seat, and one end of the terminal is connected to the enamel wire, and the other end is connected to the power supply device.
- the utility model has the beneficial effects that the flow control proportional valve is arranged in the magnetic field generated by the magnetic core and the magnetic ring by using the coil bobbin, and the electromagnetic force generated in the magnetic field is used to drive the connection after being energized by the enameled wire on the coil bobbin.
- the rod and the valve cover are axially moved, thereby realizing the opening and closing of the control valve port, and the structure is simple and convenient to realize; by providing a stable input gas pressure and flow rate, using the input voltage of both ends of the enameled wire to realize the valve
- the opening size and flow control of the mouth so that when the low-pressure driving gas source is used, the control of the large flow rate can be realized, so that the ventilator can work normally
- ⁇ electromagnetic induction is used to realize the reciprocating motion of the valve cover, and the response thereof The speed is fast and the repeating precision is high;
- the coil bobbin is sleeved on the magnetic core, and the design of the through hole inserted in the middle of the magnetic core through the connecting rod is used to guide the valve cover in the axial reciprocating motion, thereby improving The accuracy of opening and closing the valve port, which makes the flow control more Accurately;
- a bushing is provided at the through hole of the connecting rod inserted in the middle of the core, and the bushing is made of
- FIG. 1 is a schematic structural view of a flow control proportional valve according to the present invention.
- FIG. 2 is a schematic structural view of the flow control proportional valve of the present invention when it is closed.
- valve body 1, valve body, 2, valve cover, 3, connecting rod, 4, coil frame, 5, enameled wire, 6, magnetic core, 7, magnetic ring, 8, cavity, 9, air inlet, 10, air outlet , 11, valve port, 12, through hole, 1 3, bushing, 14, diaphragm, 15, diaphragm bearing, 16, diaphragm cover, 17, center hole, 18, sealing ring, 19, magnetic Seat, 20, spacer, 21, terminal block.
- the flow control proportional valve includes a valve body 1 and a valve core, and the inside of the valve body 1 is a cavity 8 and is opened on the valve body 1
- the air inlet 9 and the air outlet 10 communicate with the cavity 8
- the air inlet 10 is provided with a valve port 1 1 inside the cavity 8
- a valve core is arranged below the valve body 1 .
- the upper end of the valve core is provided with a valve cover 2, and the valve cover 2 is placed corresponding to the valve port 11, the bottom of the valve cover 2 is connected with a connecting rod 3, and the lower end of the connecting rod 3 is fixedly mounted with the bobbin 4, and the bobbin 4 is An enameled wire 5 is wound thereon, and a magnetic core 6 and a magnetic ring 7 are disposed under the bobbin 4.
- the magnetic core 6 is an inverted T-shaped structure, and the magnetic ring 7 is arranged around the middle of the magnetic core 6 with a gap and is fixedly mounted through the lower end. On the base of the magnetic core 6, a magnetic field is formed between the magnetic ring 7 and the middle of the magnetic core 6.
- the central portion of the magnetic core 6 is provided with a through hole 12, and the lower end of the connecting rod 3 passes through the bobbin 4 and is placed in the through hole 12, and
- the connecting rod 3 is inserted into the through hole 12 in the middle of the magnetic core 6 and is provided with a sleeve 13 made of a material having a low friction coefficient, and the coil bobbin 4 is sleeved on the middle of the magnetic core 6 and placed around the enameled wire 5
- a gas supply device is connected to the intake port 9.
- a gas sealing device is disposed between the valve body 1 and the magnetic core 6 and the magnetic ring 7.
- the gas sealing device includes a diaphragm 14, a diaphragm holder 15 and a diaphragm cover 16, a diaphragm holder 15 and a diaphragm.
- the cover plate 16 is superposed and has a central hole 17 in the middle.
- the connecting rod 3 passes through the diaphragm holder 15 and the central hole 17 of the diaphragm cover 16, and the valve cover 2 is connected at the upper end, and the coil holder is connected at the lower end.
- the diaphragm 14 has a ring structure, and the outer edge is fixed between the diaphragm holder 15 and the diaphragm cover 16, the inner edge is fixedly mounted on the connecting rod 3, and the upper end of the diaphragm cover 16 is connected with the valve body 1.
- a sealing ring 18 is disposed at the joint, the lower end of the diaphragm holder 15 is fixedly connected with the upper end of the upper magnetic seat 19, and the lower end of the upper magnetic seat 19 is sleeved in the gap formed between the magnetic core 6 and the magnetic ring 7, and
- the lower end of the magnetic base 19 is fixed to the upper end of the magnetic ring 7, and is fixed to the inner side of the magnetic ring 7 through the spacer 20 at the socket.
- the upper end of the upper magnetic base 19 is provided with a terminal 21, and one end of the terminal is connected and wound around the bobbin 4.
- the enameled wire 5 is connected to the power supply at the other end.
- the power supply device is activated, a voltage is applied to the enamel wire 5 through the terminal 21, a current is generated in the enamel wire 5, and a force is applied in a magnetic field formed between the magnetic core 6 and the magnetic ring 7, and the generated electromagnetic force is generated.
- a voltage is applied to the enamel wire 5 through the terminal 21
- a current is generated in the enamel wire 5
- a force is applied in a magnetic field formed between the magnetic core 6 and the magnetic ring 7, and the generated electromagnetic force is generated.
- the connecting rod 3 is guided by the sleeve 13 at the same time.
- the bobbin 4 moves together with the connecting rod 3 and the valve cover 1 under the action of electromagnetic force.
- the electromagnetic force of the valve cover 2 is smaller than the flow pressure at the air inlet 9; at this time, the low-pressure driving air supply provided by the turbine air supply device enters through the air inlet 9 and the valve port 11 In the cavity 8, through the gap between the valve port 11 and the valve cover 2, the air outlet 10 flows out to realize the low-pressure air supply, and the diaphragm 14 serves as a sealing function, and the cavity 8 in the valve body 1 is The cavity formed by the magnetic core 6 and the magnetic ring 7 is isolated so that the gas cannot enter the cavity of the cavity formed by the magnetic core 6 and the magnetic ring 7, and the electromagnetic driving device is protected. At this time, the flow control proportional valve can change the output flow of the valve body correspondingly with the change of the input voltage.
- the flow control proportional valve is suitable for a ventilator for driving a gas source at a low pressure, so that when the pressure of the driving air source is low, the gas flow required for the normal operation of the ventilator can be ensured, and the structure is simple and the response speed is fast. Long life and other advantages.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Public Health (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Medicine (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112013024153A BR112013024153A2 (pt) | 2011-12-30 | 2012-12-25 | válvula proporcional de controle de fluxo |
MX2013010817A MX338636B (es) | 2011-12-30 | 2012-12-25 | Valvula proporcional de control de flujo. |
US14/002,659 US9133955B2 (en) | 2011-12-30 | 2012-12-25 | Flow control proportional valve |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011104581166A CN103185163A (zh) | 2011-12-30 | 2011-12-30 | 流量控制比例阀 |
CN201110458116.6 | 2011-12-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013097700A1 true WO2013097700A1 (zh) | 2013-07-04 |
Family
ID=48676510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2012/087404 WO2013097700A1 (zh) | 2011-12-30 | 2012-12-25 | 流量控制比例阀 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9133955B2 (zh) |
CN (1) | CN103185163A (zh) |
BR (1) | BR112013024153A2 (zh) |
MX (1) | MX338636B (zh) |
WO (1) | WO2013097700A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2875839A1 (en) | 2013-11-26 | 2015-05-27 | OES Medical Limited | Valve mechanism |
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---|---|---|---|---|
CN104214355A (zh) | 2013-05-31 | 2014-12-17 | 北京谊安医疗***股份有限公司 | 比例阀 |
US9795757B2 (en) | 2013-06-28 | 2017-10-24 | Vyaire Medical Capital Llc | Fluid inlet adapter |
US9746359B2 (en) | 2013-06-28 | 2017-08-29 | Vyaire Medical Capital Llc | Flow sensor |
US9962514B2 (en) | 2013-06-28 | 2018-05-08 | Vyaire Medical Capital Llc | Ventilator flow valve |
US9707369B2 (en) | 2013-06-28 | 2017-07-18 | Vyaire Medical Capital Llc | Modular flow cassette |
US9433743B2 (en) | 2013-06-28 | 2016-09-06 | Carefusion 303, Inc. | Ventilator exhalation flow valve |
US9541098B2 (en) | 2013-06-28 | 2017-01-10 | Vyaire Medical Capital Llc | Low-noise blower |
MX2016016197A (es) * | 2014-06-27 | 2017-07-05 | Kingston Respiratory Capital Llc | Valvula de flujo de respirador. |
CN106695247A (zh) * | 2015-07-28 | 2017-05-24 | 北京谊安医疗***股份有限公司 | 一种塑料轴套与金属座组合加工及表面处理方法 |
CN105498066B (zh) * | 2016-01-13 | 2017-09-12 | 深圳市诺然美泰科技股份有限公司 | 低压大流量比例控制快速响应装置及其快速响应控制阀 |
CN105805405A (zh) * | 2016-05-24 | 2016-07-27 | 北京工业大学 | 一种海水液压比例流量控制阀 |
US10675433B2 (en) * | 2017-05-25 | 2020-06-09 | MGC Diagnostics Corporation | Solenoid controlled respiratory gas demand valve |
CN109140022A (zh) * | 2018-09-11 | 2019-01-04 | 中国航空工业集团公司上海航空测控技术研究所 | 快速响应的大流量小型三通电磁阀 |
CN110064116B (zh) * | 2019-06-10 | 2020-02-21 | 常州市第一人民医院 | 一种高精密气流控制呼吸机用流量控制阀 |
US20230010390A1 (en) * | 2019-12-09 | 2023-01-12 | Zhejiang Sanhua Automotive Components Co., Ltd. | Electric valve |
CN113069654A (zh) * | 2020-01-03 | 2021-07-06 | 通用电气精准医疗有限责任公司 | 磁阻尼器及包括磁阻尼器的单向阀和麻醉呼吸机 |
CN113374917B (zh) * | 2021-06-30 | 2022-07-26 | 王颖颖 | 一种灵敏度高的比例阀 |
CN114263534B (zh) * | 2021-12-24 | 2023-08-29 | 南京理工大学 | 一种气体燃料发动机用连续流量阀及其控制方法 |
CN115400337B (zh) * | 2022-09-13 | 2024-01-30 | 郑州大学第一附属医院 | 一种皮肤涂药装置 |
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DD275509A1 (de) * | 1988-09-15 | 1990-01-24 | Schwermasch Rau Wildau | Bistabiles elektromagnetventil |
US5771884A (en) * | 1997-03-14 | 1998-06-30 | Nellcor Puritan Bennett Incorporated | Magnetic exhalation valve with compensation for temperature and patient airway pressure induced changes to the magnetic field |
JP2003019201A (ja) * | 2001-07-06 | 2003-01-21 | Kawasaki Safety Service Industries Ltd | 人工呼吸器用呼気弁装置 |
CN201133471Y (zh) * | 2007-11-26 | 2008-10-15 | 杭州强邦精密机械电器有限公司 | 燃气比例阀 |
CN201149125Y (zh) * | 2008-01-25 | 2008-11-12 | 潘佩聪 | 一种膜式截止阀 |
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DE60039527D1 (de) * | 2000-07-10 | 2008-08-28 | Yugen Kaisha Kouritu | Durchflussregelventil |
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CN201636417U (zh) * | 2009-12-14 | 2010-11-17 | 黄依华 | 燃气电磁比例阀 |
-
2011
- 2011-12-30 CN CN2011104581166A patent/CN103185163A/zh active Pending
-
2012
- 2012-12-25 MX MX2013010817A patent/MX338636B/es active IP Right Grant
- 2012-12-25 US US14/002,659 patent/US9133955B2/en active Active
- 2012-12-25 BR BR112013024153A patent/BR112013024153A2/pt not_active Application Discontinuation
- 2012-12-25 WO PCT/CN2012/087404 patent/WO2013097700A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DD275509A1 (de) * | 1988-09-15 | 1990-01-24 | Schwermasch Rau Wildau | Bistabiles elektromagnetventil |
US5771884A (en) * | 1997-03-14 | 1998-06-30 | Nellcor Puritan Bennett Incorporated | Magnetic exhalation valve with compensation for temperature and patient airway pressure induced changes to the magnetic field |
JP2003019201A (ja) * | 2001-07-06 | 2003-01-21 | Kawasaki Safety Service Industries Ltd | 人工呼吸器用呼気弁装置 |
CN201133471Y (zh) * | 2007-11-26 | 2008-10-15 | 杭州强邦精密机械电器有限公司 | 燃气比例阀 |
CN201149125Y (zh) * | 2008-01-25 | 2008-11-12 | 潘佩聪 | 一种膜式截止阀 |
CN201921250U (zh) * | 2010-09-26 | 2011-08-10 | 深圳市百格医疗技术有限公司 | 一种麻醉呼吸机主动式呼吸控制装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2875839A1 (en) | 2013-11-26 | 2015-05-27 | OES Medical Limited | Valve mechanism |
GB2521822A (en) * | 2013-11-26 | 2015-07-08 | Oes Medical Ltd | Valve Mechanism |
Also Published As
Publication number | Publication date |
---|---|
MX2013010817A (es) | 2013-11-01 |
US9133955B2 (en) | 2015-09-15 |
CN103185163A (zh) | 2013-07-03 |
BR112013024153A2 (pt) | 2016-12-06 |
MX338636B (es) | 2016-04-25 |
US20140054479A1 (en) | 2014-02-27 |
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