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1. 发明申请

WO2003093812A2 MONITORING MEDICAL GAS XENON CONCENTRATION USING ULTRASONIC GAS ANALYSER 审中-公开
标题翻译：使用超声波气体分析仪监测医用气体氙浓度
公开(公告)号：WO2003093812A2
公开(公告)日：2003-11-13
申请号：PCT/GB2003/001877
申请日：2003-05-01
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander , KERR, Stuart, Alexander
发明人： DOWNIE, Neil, Alexander , KERR, Stuart, Alexander
IPC分类号： G01N29/00
CPC分类号： G01N29/222 , G01N29/024 , G01N2291/0212 , G01N2291/0215 , G01N2291/02809 , G01N2291/101
摘要： The concentration of xenon, in a medical gas mixture of xenon as an active component with a known composition of oxygen and, optionally, nitrogen and/or helium recirculating through a medical device (103) in which carbon dioxide is introduced into the mixture, is monitored by removal (135, 133) of carbon dioxide downstream of the medical device (103) and subsequently passing the carbon dioxide-free gas through an ultrasonic gas analyser (143) upstream of the medical device. The gas analyzer determines the xenon concentration by measuring the time delay between transmission of an ultrahigh frequency ultrasonic pulse of at least 100 kHz axially through the sample chamber from a location at one end thereof and reflection of said pulse axially from the other end of the sample chamber back to said location. An analyser of novel construction is disclosed.
摘要翻译：氙作为具有已知组成的氧的活性成分的药物气体混合物中的氙浓度，以及可选地通过其中二氧化碳被引入混合物的医疗装置（103）再循环的氮和/或氦的浓度为通过在医疗装置（103）的下游去除（135,133）二氧化碳并随后使无二氧化碳气体通过医疗装置上游的超声波气体分析器（143）来监测。气体分析仪通过测量从其一端的位置轴向通过样品室的至少100kHz的超高频超声波脉冲的透射与样品的另一端的轴向反射之间的时间延迟来确定氙浓度房间回到所述位置。公开了一种新颖的结构分析仪。

2. 发明申请

WO2013174960A1 METHOD OF, AND APPARATUS FOR, PROVIDING A GAS MIXTURE 审中-公开
标题翻译：提供气体混合物的方法和装置
公开(公告)号：WO2013174960A1
公开(公告)日：2013-11-28
申请号：PCT/EP2013/060692
申请日：2013-05-23
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander , LEE, Thomas, David, Matthew
发明人： DOWNIE, Neil, Alexander , LEE, Thomas, David, Matthew
IPC分类号： G05D11/13 , B01F3/02
CPC分类号： G05D11/02 , B01F3/028 , B01F15/0216 , B01F15/026 , B01F15/0425 , B01F15/0429 , G05B15/00 , G05D11/137 , G05D11/139
摘要： There is provided a gas mixer arrangement comprising a first gas source for supplying a first gas; a second gas source for supplying a second gas different from said first gas; first and second flow regulation devices for regulating the respective flow of the first gas and second gases from the first and second gas sources; a mixer;and an outlet. The mixer is located downstream of the first and second flow regulation devices and arranged, in use, to mix the first and second gases to provide a mixed gas to the outlet. The gas mixer arrangement further comprises a meter comprising a first sensor assembly operable to determine the average molecular weight of the mixed gas and including a high-frequency planar piezoelectric crystal oscillator in contact with the mixed gas, a second sensor assembly operable to determine the pressure of the gas downstream of one of the first or second flow regulation devices, and a controller operable, in response to the average molecular weight of the mixed gas and said gas pressure, to control automatically said first and second flow regulation devices to control the relative proportion of the first and second gases in said mixed gas and the pressure or mass flow rate of the mixed gas from the outlet.
摘要翻译：提供了一种气体混合器装置，包括用于供应第一气体的第一气体源; 用于供应与所述第一气体不同的第二气体的第二气体源; 第一和第二流量调节装置，用于调节来自第一和第二气体源的第一气体和第二气体的相应流量; 混合器和出口。混合器位于第一和第二流量调节装置的下游，并且在使用中布置以混合第一和第二气体以向出口提供混合气体。气体混合器装置还包括仪表，其包括第一传感器组件，其可操作以确定混合气体的平均分子量，并且包括与混合气体接触的高频平面压电晶体振荡器，可操作以确定压力的第二传感器组件的第一或第二流量调节装置中的一个的下游的气体，以及响应于混合气体和所述气体压力的平均分子量而可操作地控制所述第一和第二流量调节装置来控制相对所述混合气体中的第一和第二气体的比例以及来自出口的混合气体的压力或质量流量。

3. 发明申请

WO2003092776A2 MEDICAL GAS RECIRCULATION SYSTEM 审中-公开
标题翻译：医疗气体回收系统
公开(公告)号：WO2003092776A2
公开(公告)日：2003-11-13
申请号：PCT/GB2003/001875
申请日：2003-05-01
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander , KERR, Stuart, Alexander
发明人： DOWNIE, Neil, Alexander , KERR, Stuart, Alexander
IPC分类号： A61M16/00
CPC分类号： A61M16/0045 , A61M1/1698 , A61M1/3666 , A61M16/1055 , A61M16/1065 , A61M16/107 , A61M16/12 , A61M16/22 , A61M2016/102 , A61M2016/1025 , A61M2202/0291
摘要： A medical device (103) is supplied (105) with a gas mixture from a higher pressure section of a main circuit (102) in which medical gas recirculates through the higher pressure section and a lower pressure section. Decontaminated spent gas is returned to the lower pressure section of the main circuit. Pressure in the higher pressure section is maintained by a pressure maintaining valve (141) and gas flow in the main circuit is maintained by a volume regulator (145) in the lower pressure section. The composition of the recirculating gas mixture is maintained by addition of respective feed gases in response to concentration and/or volume variation measurement. The method has particular application to the feed of a binary oxygen/xenon mixture to a cardiopulmonary bypass oxygenator or an artificial ventilator.
摘要翻译：向医疗装置（105）提供来自主回路（102）的高压部分的气体混合物，医疗气体通过高压部分和低压部分再循环。净化废气返回到主回路的低压段。高压部分的压力由保压阀（141）保持，并且主回路中的气体流由下部压力部分中的体积调节器（145）保持。循环气体混合物的组成通过响应于浓度和/或体积变化测量而添加相应的进料气体来维持。该方法特别适用于将二氧化氙混合物进料至心肺旁路氧合器或人造呼吸机。

4. 发明申请

WO2013174954A1 METHOD OF, AND APPARATUS FOR, PROVIDING A GAS MIXTURE 审中-公开
标题翻译：提供气体混合物的方法和装置
公开(公告)号：WO2013174954A1
公开(公告)日：2013-11-28
申请号：PCT/EP2013/060686
申请日：2013-05-23
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander
发明人： DOWNIE, Neil, Alexander
IPC分类号： G05D11/13 , B01F3/02
CPC分类号： G05D11/137 , B01F3/028 , B01F15/00207 , B01F15/00233 , G05D11/135 , Y10T137/0329 , Y10T137/0352 , Y10T137/2499 , Y10T137/2504
摘要： There is provided a gas mixer arrangement comprising a first gas source for supplying a first gas; a second gas source for supplying a second gas different from said first gas; a first valve for regulating the flow of the first gas; a second valve for regulating the flow of the second gas; a mixer located downstream of the first and second valves and arranged, in use, to mix the first and second gases to provide a mixed gas; a meter arranged to measure the average molecular weight of the mixed gas, comprising a high-frequency planar piezoelectric crystal oscillator in contact with the mixed gas and a sensor operable to determine atmospheric pressure; and a controller operable, in response to the measured average molecular weight of said mixed gas, to control at least one of said first and second valves in order to control the relative proportion of the first and second gases in said mixed gas.
摘要翻译：提供了一种气体混合器装置，包括用于供应第一气体的第一气体源; 用于供应与所述第一气体不同的第二气体的第二气体源; 用于调节第一气体的流动的第一阀; 用于调节第二气体的流动的第二阀; 位于第一和第二阀下游的混合器，并在使用中布置以混合第一和第二气体以提供混合气体; 布置成测量混合气体的平均分子量的仪表，包括与混合气体接触的高频平面压电晶体振荡器和可操作以确定大气压力的传感器; 以及响应于测量的所述混合气体的平均分子量而控制所述第一和第二阀中的至少一个的控制器，以便控制所述混合气体中的第一和第二气体的相对比例。

5. 发明申请

WO2004046840A1 VOLUME FLOW CONTROLLER 审中-公开
标题翻译：体积流量控制器
公开(公告)号：WO2004046840A1
公开(公告)日：2004-06-03
申请号：PCT/GB2003/005064
申请日：2003-11-20
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander
发明人： DOWNIE, Neil, Alexander
IPC分类号： G05D7/06
CPC分类号： G05D7/0635
摘要： A volume flow controller (1) for controlling the flow of a gas mixture of variable proportions through a conduit (3) has a valve means (5) for regulating the flow of gas through the conduit, a drive means (9) for driving the valve means, a volumetric flow meter (7), such as a Pelton wheel, for measuring the flow of gas through the conduit, which provides a feedback signal (29) for comparison with a setpoint signal (17) in an amplifier (15) which generates an adjustment signal (11) which is fed to the drive means. The setpoint signal is generated by a setpoint signal generating means (19), which comprises a potentiometer (21) for inputting a value corresponding to a desired flow rate and a slowdown circuit (23) consisting of a resistor (25) and a capacitor (27) for delaying the change in the setpoint from the previous setpoint to the desired setpoint for a period of time sufficient to compensate for the delay in response inherent in the volumetric flow meter, thus providing smooth and stable control of the gas flow. Preferably, the potentiometer is a digital potentiometer (403), which voltage is variable by independent manipulation of rotary encoders (417).
摘要翻译：用于通过导管（3）控制可变比例的气体混合物的流动的体积流量控制器（1）具有用于调节通过导管的气体流动的阀装置（5），用于驱动阀装置，诸如佩尔顿轮的体积流量计（7），用于测量通过管道的气体流量，其提供用于与放大器（15）中的设定点信号（17）进行比较的反馈信号（29）其产生馈送到驱动装置的调节信号（11）。设定点信号由设定点信号发生装置（19）产生，该装置包括用于输入对应于期望流量的值的电位计（21）和由电阻器（25）和电容器（25）组成的减速电路（23） 27），用于将设定值从先前设定点延迟到期望设定值足以补偿体积流量计中固有的响应延迟的时间段，从而提供对气流的平稳和稳定的控制。优选地，电位器是数字电位器（403），该电压通过旋转编码器的独立操作而变化（417）。

6. 发明申请

WO2013174955A1 METHOD OF, AND APPARATUS FOR, REGULATING THE MASS FLOW RATE OF A GAS 审中-公开
标题翻译：用于调节气体质量流量的方法和装置
公开(公告)号：WO2013174955A1
公开(公告)日：2013-11-28
申请号：PCT/EP2013/060687
申请日：2013-05-23
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander
发明人： DOWNIE, Neil, Alexander
IPC分类号： G01F1/78 , G01F15/00 , G05D7/06
CPC分类号： G01F1/78 , G01F15/00 , G01F15/005 , G05D7/06 , G05D7/0635 , Y10T137/0368 , Y10T137/7722
摘要： There is provided a method of automatically controlling the mass flow rate of a gas through an orifice through which, in use, choked flow is arranged to occur. The method uses an electronic valve located downstream of a gas source, a piezoelectric oscillator in contact with the gas upstream of the orifice and downstream of the electronic valve and a temperature sensor. The method comprises: a) driving the piezoelectric crystal oscillator at a resonant frequency b) measuring the resonant frequency of the piezoelectric oscillator c) measuring the temperature of the gas; and d) controlling the electronic valve in response to the resonant frequency of the piezoelectric oscillator and the temperature of the gas in order to regulate the mass flow rate of gas through said orifice. Figure
摘要翻译：提供了一种通过孔口自动控制气体的质量流量的方法，通过该孔口在使用中排列发生阻塞流动。该方法使用位于气源的下游的电子阀，与孔的上游和电子阀下游的气体接触的压电振子和温度传感器。该方法包括：a）以谐振频率驱动压电晶体振荡器; b）测量压电振荡器的谐振频率; c）测量气体的温度; 以及d）响应于压电振荡器的谐振频率和气体的温度来控制电子阀，以便调节通过所述孔口的气体的质量流量。数字

7. 发明申请

WO2012072597A1 METHOD OF, AND APPARATUS FOR, MEASURING THE MASS FLOW RATE OF A GAS 审中-公开
标题翻译：测量气体质量流量的方法和装置
公开(公告)号：WO2012072597A1
公开(公告)日：2012-06-07
申请号：PCT/EP2011/071213
申请日：2011-11-28
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander
发明人： DOWNIE, Neil, Alexander
IPC分类号： G01F15/06 , G01F1/78 , G01F15/04 , G01F15/12
CPC分类号： G01F1/86 , G01F1/76 , G01F1/78 , G01F15/043 , G01F15/063 , G01F15/125 , Y10T137/7759
摘要： There is provided a meter (200; 350) for measuring the mass flow rate of a gas. The meter comprises a conduit (206) through which the gas flows in use. The conduit has a flow restriction orifice (212) through which choked flow occurs in use. The flow restriction orifice divides the conduit into an upstream portion (214) upstream of said orifice and a downstream portion (216) downstream of said orifice. The meter further comprises a sensor assembly (204), the sensor assembly including a piezoelectric crystal oscillator (218) in said upstream portion such that said piezoelectric oscillator is in contact with said gas when the meter in use. The sensor assembly is arranged: to drive the piezoelectric crystal oscillator such that the piezoelectric crystal oscillator resonates at a resonant frequency; to measure said resonant frequency of said piezoelectric crystal oscillator; and to determine, from the resonant frequency, the mass flow rate through the orifice.
摘要翻译：提供了用于测量气体的质量流量的仪表（200; 350）。仪表包括导管（206），气体在使用中通过该管道流动。导管具有流动限制孔口（212），在使用中通过该流动限制孔口发生阻塞流动。流量限制孔口将导管分隔成所述孔口上游的上游部分（214）和在所述孔口下游的下游部分（216）。仪表还包括传感器组件（204），传感器组件包括在所述上游部分中的压电晶体振荡器（218），使得所述压电振荡器在使用中时与所述气体接触。传感器组件被布置为：驱动压电晶体振荡器，使得压电晶体振荡器以共振频率谐振; 以测量所述压电晶体振荡器的所述谐振频率; 并且从谐振频率确定通过孔口的质量流量。

8. 发明申请

WO2003093722A1 GAS DISPENSING AND RECOVERY APPARATUS 审中-公开
标题翻译：气体分配和恢复装置
公开(公告)号：WO2003093722A1
公开(公告)日：2003-11-13
申请号：PCT/GB2003/001883
申请日：2003-05-01
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander , KERR, Stuart, Alexander
发明人： DOWNIE, Neil, Alexander , KERR, Stuart, Alexander
IPC分类号： F17C7/00
CPC分类号： F17C1/00 , A61M1/3666 , A61M16/0078 , A61M16/0081 , A61M16/1055 , A61M16/1065 , A61M16/107 , A61M16/22 , A61M2202/0291 , F17C2201/0119 , F17C2201/018 , F17C2201/0185 , F17C2201/056 , F17C2201/058 , F17C2203/0619 , F17C2203/0636 , F17C2203/0685 , F17C2205/0323 , F17C2205/0332 , F17C2205/0335 , F17C2205/0394 , F17C2221/011 , F17C2221/013 , F17C2221/016 , F17C2221/03 , F17C2221/031 , F17C2223/0123 , F17C2223/033 , F17C2223/035 , F17C2227/0135 , F17C2227/0192 , F17C2250/0408 , F17C2250/043 , F17C2250/0443 , F17C2250/0452 , F17C2270/02 , F17C2270/025 , F17C2270/05
摘要： A container (1) having a first compartment (3) and a second compartment (5) separated by a movable gas impermeable partition (7) is used for storing and dispensing a gas for use in a process and receiving and storing a gas recovered from the process. Fresh gas is dispensed (9) from the first compartment (3) for use in a process and recovered gas is fed (11) to the second compartment (5), whereby a volume of the second gas displaces a volume of the first gas by movement of the partition (7) to enlarge the second compartment (5) relative to the first compartment (3).
摘要翻译：具有由可移动气体不可渗透隔板（7）分开的具有第一隔室（3）和第二隔室（5）的容器（1）用于储存和分配用于工艺中的气体并且接收和储存从的过程。从第一隔室（3）分配新鲜气体（9）以用于一个过程，并且将回收的气体（11）进料到第二隔室（5），由此一定体积的第二气体通过分隔件（7）的移动以相对于第一隔室（3）扩大第二隔室（5）。

9. 发明申请

WO2013174958A1 METHOD OF, AND APPARATUS FOR, MEASURING THE FLOW RATE OF A GAS 审中-公开
标题翻译：测量气体流量的方法和装置
公开(公告)号：WO2013174958A1
公开(公告)日：2013-11-28
申请号：PCT/EP2013/060690
申请日：2013-05-23
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander
发明人： DOWNIE, Neil, Alexander
IPC分类号： G01F1/78 , G01F15/00 , G05D7/06 , G01F1/28
CPC分类号： G01F1/3227 , G01F1/28 , G01F1/78 , G01F15/00 , G01F15/005 , G01N9/32 , G05D7/0635
摘要： There is provided a meter for measuring the flow rate of a gas along a conduit, the meter comprising a sensor assembly including a piezoelectric crystal oscillator comprising two planar tines in contact with, and extending into, said gas flow when the meter is in use, said sensor assembly being arranged: to measure the voltage generated by movement of the planar tines of said piezoelectric oscillator in the gas flow along the conduit; and to determine, from the generated voltage, the flow rate of gas along said conduit.
摘要翻译：提供了一种用于测量沿着导管的气体流速的仪表，该仪表包括传感器组件，该传感器组件包括压电晶体振荡器，该压电晶体振荡器包括与仪表在使用中接触并延伸到所述气流中的两个平面尖齿，所述传感器组件被布置为：测量沿着导管在气流中所述压电振荡器的平面尖齿的移动产生的电压; 并且从所产生的电压确定沿着所述导管的气体的流速。

10. 发明申请

WO2012072588A1 METHOD OF, AND APPARATUS FOR, MEASURING THE TRUE CONTENTS OF A CYLINDER OF GAS UNDER PRESSURE 审中-公开
标题翻译：用于测量压力气体气瓶的真实内容的方法和装置
公开(公告)号：WO2012072588A1
公开(公告)日：2012-06-07
申请号：PCT/EP2011/071198
申请日：2011-11-28
申请人： AIR PRODUCTS AND CHEMICALS, INC. , DOWNIE, Neil, Alexander , BEHRENS, Marcel , OBADUN, Lateef, Olusegun, Adigun
发明人： DOWNIE, Neil, Alexander , BEHRENS, Marcel , OBADUN, Lateef, Olusegun, Adigun
IPC分类号： G01F1/86 , G01G17/04 , G01G17/06 , F17C1/00 , F17C13/02 , G01N9/00 , F16K37/00 , G01F15/06
CPC分类号： G01N9/36 , F17C13/02 , F17C13/023 , F17C2250/0404 , F17C2250/0421 , F17C2250/0495 , G01F1/86 , G01F15/063 , G01G3/16 , G01G17/04 , G01N9/002 , Y10T137/8158
摘要： There is provided a method of, and apparatus for, measuring the mass of a gas under pressure using a piezoelectric oscillator. The gas is contained within a pressure vessel (100) having a fixed internal volume (V) and the piezoelectric oscillator (202) is immersed in the gas within the pressure vessel (100). The method comprises: a) utilising said piezoelectric oscillator (202) to measure the density of the gas within the high-pressure vessel (100); b) determining, from the density measurement and from the internal volume (V) of said pressure vessel, the mass of the gas within the pressure vessel (100). By providing such a method, the true contents (i.e. mass) of fluid in a pressure vessel such as a cylinder can be measured directly without the need to compensate for factors such as temperature or compressibility. This allows a determination of mass through direct derivation from the density of the gas in the cylinder, reducing the need for additional sensors or complex calculations to be performed.
摘要翻译：提供了一种使用压电振荡器测量加压气体质量的方法和装置。气体被包含在具有固定内部体积（V）的压力容器（100）中，并且压电振荡器（202）浸入压力容器（100）内的气体中。该方法包括：a）利用所述压电振荡器（202）测量高压容器（100）内气体的密度; b）从所述压力容器的密度测量值和内部体积（V）确定所述压力容器（100）内的气体质量。通过提供这种方法，可以直接测量诸如气缸的压力容器中的流体的真实含量（即质量），而不需要补偿诸如温度或压缩性的因素。这允许通过从气缸中的气体的密度的直接推导来确定质量，减少对附加传感器的需要或要执行的复杂计算。

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