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1. 发明专利

GB2417083A An electrochemical sensor for detecting carbon dioxide 未知
公开(公告)号：GB2417083A
公开(公告)日：2006-02-15
申请号：GB0418078
申请日：2004-08-13
申请人： VARNEY MARK SINCLAIR , ASTHMA ALERT LTD
发明人： VARNEY MARK SINCLAIR
IPC分类号： G01N27/416 , G01N27/407 , G01N33/00 , G01N33/497
摘要： An electrochemical sensor for detecting carbon dioxide (for example in a persons breath) comprises at least a working electrode and a reference electrode 3, 4 on a substrate 5. A material that forms an electrolyte is deposited in a solidified, imobilised form on the electrodes 3, 4. The material contains a ligand that is capable of forming a complex with a metal ion. In use the sensor is placed in a flow passage; a portion of the electrolyte forming material dissolves in moisture contained within for example the breath; the carbon dioxide interacts with the ligand facilitating the detection of the carbon dioxide. The concentration of carbon dioxide is related to the concentration of metal ions (a non linear relationship). The electrodes may be for example points, lines, rings or flat planer surfaces, and may be interdigitated. The electrode material may be gold, platinum or any group VIII elements that do not react with the electrolyte. The substrate may be for example ceramic, plastic, glass, or sintered non conducting materials. The ligand may be dicarboxylic acids. The metal ion may be a group VIII transition metal (for example copper, lead, cadmium). A disclosed example of the electrolyte is diaminopropane, copper and Potassium Chloride (KCl). The operating potential may be a linear sweep potential, a stepped potential or a discrete pulse. The electrolyte material may be evaporated onto the electrodes.

2. 发明专利

GB2417083B An electrochemical carbon dioxide gas sensor 未知
公开(公告)号：GB2417083B
公开(公告)日：2006-08-16
申请号：GB0418078
申请日：2004-08-13
申请人： VARNEY MARK SINCLAIR , ASTHMA ALERT LTD
发明人： VARNEY MARK SINCLAIR
IPC分类号： G01N33/497 , G01N27/407 , G01N27/416 , G01N33/00
摘要： A sensor and method for detecting a target substance, particularly CO2, in a gas stream comprises a sensing element disposed to be exposed to the gas stream, the sensing element comprising a working electrode; a counter electrode; and a solid electrolyte precursor extending between and in contact with the working and counter electrodes; whereby the gas stream may be caused to impinge upon the solid electrolyte precursor such that water vapour in the gas stream at least partially hydrates the precursor to form an electrolyte in electrical contact with the working electrode and the counter electrode. The method measures the current flowing between the working counter electrodes as a result of the applied potential; and determines, from the measured current flow, an indication of the concentration of the target substance. The sensor and method are particularly suitable for analyzing tidal carbon dioxide concentrations in the exhaled breath of a person.

3. 发明专利

GB2448323A Respiratory Rate Measuring Apparatus 未知
公开(公告)号：GB2448323A
公开(公告)日：2008-10-15
申请号：GB0706881
申请日：2007-04-10
申请人： VARNEY MARK SINCLAIR
发明人： VARNEY MARK SINCLAIR
IPC分类号： A61B5/08
摘要： An apparatus is provided for measuring the respiratory rate of a subject (adult, child, animal or other living / breathing subject), including; a sensor that determines the exhaled water vapour concentration; a calculating device for iteratively calculating properties of individual breath; a method for outputting the respiratory rate based on evaluation of the values produced by the device. The device may optionally transmit an alarm to a remote receiver when respiratory irregularities are detected. Claims are also included for a sensor for detecting water vapour in a gas stream which comprises a first electrode; a second electrode; an active substrate extending between the first and second electrodes, the active substrate being selective to water vapour, such that the presence of water vapour varies the electrical conductivity of the path between the first and second electrodes. The sensor is suitable for analyzing the water vapour content of breath exhaled by a subject in the assessment of respiratory rate and / or respiratory function. The sensor is enclosed within a housing such that the exhalation is unaffected, causing no back-pressure to the breath or increase in exhalation effort, thereby allowing normal tidal breathing.

4. 发明申请

WO2007031769A2 GAS SENSOR 审中-公开
标题翻译：气体传感器
公开(公告)号：WO2007031769A2
公开(公告)日：2007-03-22
申请号：PCT/GB2006/003432
申请日：2006-09-15
申请人： ANAXSYS TECHNOLOGY LIMITED , VARNEY, Mark, Sinclair , GARRETT, Michael , LINDSELL, Alexandra
发明人： VARNEY, Mark, Sinclair , GARRETT, Michael , LINDSELL, Alexandra
IPC分类号： G01N27/12 , G01N33/497 , A61B5/097
CPC分类号： A61B5/083 , A61B5/097 , G01N27/12
摘要： A sensor for detecting a target component in a gas stream comprises a first electrode; a second electrode; an active substrate extending between the first and second electrodes, the active substrate being selective to the target component, such that the presence of the target component varies the electrical conductivity of the path between the first and second electrodes. The active substrate preferably comprises a zeolite, in particular zeolite 4A or 13X. A method of detecting a target component in a gas stream comprises contacting the gas stream with an active substrate extending between first and second electrodes; determining the variation in the electrical conductivity of the path between the first and second electrodes; and providing an indication of the presence of the target component in the gas stream. The method is particularly suitable for analyzing the carbon dioxide content of breath exhaled by a subject in the assessment of respiratory function.
摘要翻译：用于检测气流中的目标成分的传感器包括第一电极; 第二电极; 有源衬底，其在第一和第二电极之间延伸，活性衬底对靶组分是选择性的，使得靶组分的存在改变了第一和第二电极之间的路径的导电性。活性底物优选包含沸石，特别是沸石4A或13X。检测气流中的目标组分的方法包括使气体流与在第一和第二电极之间延伸的有源衬底接触; 确定第一和第二电极之间的路径的电导率的变化; 并提供目标组分在气流中的存在的指示。该方法特别适用于分析受试者在呼吸功能评估中呼出的呼吸的二氧化碳含量。

5. 发明申请

WO2007031769A3 GAS SENSOR 审中-公开
标题翻译：气体传感器
公开(公告)号：WO2007031769A3
公开(公告)日：2007-06-28
申请号：PCT/GB2006003432
申请日：2006-09-15
申请人： ANAXSYS TECHNOLOGY LTD , VARNEY MARK SINCLAIR , GARRETT MICHAEL , LINDSELL ALEXANDRA
发明人： VARNEY MARK SINCLAIR , GARRETT MICHAEL , LINDSELL ALEXANDRA
IPC分类号： G01N27/12 , A61B5/083 , A61B5/097 , G01N33/497
CPC分类号： A61B5/083 , A61B5/097 , G01N27/12
摘要： A sensor (140) for detecting a target component in a gas stream comprises a first electrode (144) ; a second electrode (146) ; an active substrate (148) extending between the first and second electrodes, the active substrate being selective to the target component, such that the presence of the target component varies the electrical conductivity of the path between the first and second electrodes. The active substrate preferably comprises a zeolite, in particular zeolite 4A or 13X. A method of detecting a target component in a gas stream comprises contacting the gas stream with an active substrate extending between first and second electrodes; determining the variation in the electrical conductivity of the path between the first and second electrodes; and providing an indication of the presence of the target component in the gas stream. The method is particularly suitable for analyzing the carbon dioxide content of breath exhaled by a subject in the assessment of respiratory function.
摘要翻译：用于检测气流中的目标组分的传感器（140）包括第一电极（144）; 第二电极（146）; 在所述第一和第二电极之间延伸的有源衬底（148），所述有源衬底对所述目标部件是选择性的，使得所述目标部件的存在改变所述第一和第二电极之间的路径的导电性。活性底物优选包含沸石，特别是沸石4A或13X。检测气流中的目标成分的方法包括使气体流与在第一和第二电极之间延伸的有源衬底接触; 确定第一和第二电极之间的路径的电导率的变化; 并提供目标组分在气流中的存在的指示。该方法特别适用于分析受试者在呼吸功能评估中呼出的呼吸的二氧化碳含量。

6. 发明申请

WO2009125225A1 GAS SENSOR 审中-公开
标题翻译：气体传感器
公开(公告)号：WO2009125225A1
公开(公告)日：2009-10-15
申请号：PCT/GB2009/050352
申请日：2009-04-09
申请人： ANAXSYS TECHNOLOGY LTD , VARNEY, Mark Sinclair , GARRETT, Michael , WILLIAMS, Deryk John Peter
发明人： VARNEY, Mark Sinclair , GARRETT, Michael , WILLIAMS, Deryk John Peter
IPC分类号： A61B5/083 , G01N33/497
CPC分类号： A61B5/0836 , G01N27/121 , G01N33/497
摘要： A method of determining the respiratory function of a subject is disclosed, the method comprising measuring the concentration of water vapour in the gas stream exhaled by the subject, and from the measured water vapour concentration determining the respiratoryfunction of the subject. Mathematical techniques for analyzing the data obtained from the measurement of concentrations of gaseous components in an exhaled gas stream are also disclosed and their use in determining the lung function of a subject.
摘要翻译：公开了一种确定受试者呼吸功能的方法，所述方法包括测量受试者呼出的气流中的水蒸气浓度，以及测定测定的受试者呼吸功能的水蒸气浓度。还公开了用于分析从呼出气流中的气体组分的浓度测量获得的数据的数学技术，并且它们用于确定受试者的肺功能。

7. 发明申请

WO2006016188A1 GAS SENSOR 审中-公开
标题翻译：气体传感器
公开(公告)号：WO2006016188A1
公开(公告)日：2006-02-16
申请号：PCT/GB2005/003196
申请日：2005-08-12
申请人： ASTHMA ALERT LIMITED , VARNEY, Mark, Sinclair , GARRETT, Michael, Ernest
发明人： VARNEY, Mark, Sinclair , GARRETT, Michael, Ernest
IPC分类号： G01N27/407
CPC分类号： G01N27/4074 , G01N33/004 , G01N33/497
摘要： A sensor for detecting a target substance, in particular carbon dioxide, in a gas stream comprises a sensing element (8) disposed to be exposed to the gas stream, the sensing element comprising a working electrode (12); a counter electrode (14); and a solid electrolyte precursor (16) extending between and in contact with the working electrode and the counter electrode; whereby the gas stream may be caused to impinge upon the solid electrolyte precursor such that water vapour in the gas stream at least partially hydrates the precursor to form an electrolyte in electrical contact with the working electrode and the counter electrode. A method of sensing a target substance in a gas stream comprises causing the gas stream comprising water vapour to impinge upon a solid electrolyte precursor; allowing the solid electrolyte precursor to at least partially hydrate, so as to form an electrolyte bridge beA sensor for detecting a target substance, in particular carbon dioxide, in a gas stream comprises a sensing element disposed to be exposed to the gas stream, the sensing element comprising a working electrode; a counter electrode; and a solid electrolyte precursor extending between and in contact with the working electrode and the counter electrode; whereby the gas stream may be caused to impinge upon the solid electrolyte precursor such that water vapour in the gas stream at least partially hydrates the precursor to form an electrolyte in electrical contact with the working electrode and the counter electrode. A method of sensing a target substance in a gas stream comprises causing the gas stream comprising water vapour to impinge upon a solid electrolyte precursor; allowing the solid electrolyte precursor to at least partially hydrate, so as to form an electrolyte bridge between a working electrode and a counter electrode; applying a electric potential across the working electrode and counter electrode; measuring the current flowing between the working electrode and counter electrode as a result of the applied potential; and determining from the measured current flow an indication of the concentration of the target substance. The sensor and method are particularly suitable for analyzing tidal carbon dioxide concentrations in the exhaled breath of a person.
摘要翻译：用于检测气流中的目标物质，特别是二氧化碳的传感器包括设置为暴露于气流的感测元件（8），所述感测元件包括工作电极（12）; 对电极（14）; 以及在工作电极和对电极之间延伸并与其接触的固体电解质前体（16）; 由此气流可能被撞击到固体电解质前体上，使得气流中的水蒸汽至少部分地水合前体以形成与工作电极和对电极电接触的电解质。感测气流中的目标物质的方法包括使包含水蒸汽的气流撞击固体电解质前体; 允许固体电解质前体至少部分水合，以便形成用于在气流中检测目标物质，特别是二氧化碳的电解质桥beA传感器，包括设置为暴露于气流的感测元件，感测元件包括工作电极; 对电极以及在工作电极和对电极之间延伸并与其接触的固体电解质前体; 由此气流可能被撞击到固体电解质前体上，使得气流中的水蒸汽至少部分地水合前体以形成与工作电极和对电极电接触的电解质。感测气流中的目标物质的方法包括使包含水蒸汽的气流撞击固体电解质前体; 使固体电解质前体至少部分水合，从而在工作电极和对电极之间形成电解质桥; 在工作电极和对电极上施加电位; 测量作为施加电位的结果在工作电极和对电极之间流动的电流; 并从所测量的电流确定目标物质的浓度的指示。传感器和方法特别适用于分析人呼出气中的二氧化碳浓度。

8. 发明申请

WO2004001407A1 ELECTROCHEMICAL GAS DETECTION APPARATUS AND METHOD COMPRISING A PERMEABLE MEMBRANE AND AN AQUEOUS ELECTROLYTE 审中-公开
标题翻译：电化学气体检测装置和包含透明膜和电解质电解质的方法
公开(公告)号：WO2004001407A1
公开(公告)日：2003-12-31
申请号：PCT/GB2003/002643
申请日：2003-06-20
申请人： ASTHMA ALERT LIMITED , VARNEY, Mark, Sinclair
发明人： VARNEY, Mark, Sinclair
IPC分类号： G01N33/00
CPC分类号： G01N27/4162 , G01N33/004
摘要： A method for the electrochemical detection of carbon dioxide, which comprises causing at least a portion of the carbon dioxide to pass through a permeable membrane and dissolve in an aqueous electrolyte containing a metal ion and an organic ligand to form in situ in the electrolyte an equilibrium between the dissolved carbon dioxide species, the metal ion and the ligand concentrations and measuring the varying metal ion concentration and hence calculating the corresponding carbon dioxide concentration by means of measuring a current passing between electrodes present in the electrolyte. Also a gas detection apparatus comprising a housing, a gas permeable membrane, an aqueous electrolyte inside the housing with electrodes. The concentration of the gas is determined amperometrically.
摘要翻译：一种用于电化学检测二氧化碳的方法，其包括使至少一部分二氧化碳通过可渗透膜并溶解在含有金属离子和有机配体的含水电解质中以在电解质中原位形成平衡在溶解的二氧化碳物质，金属离子和配体浓度之间，并测量不同的金属离子浓度，从而通过测量存在于电解质中的电极之间的电流来计算相应的二氧化碳浓度。还有一种气体检测装置，其包括壳体，透气膜，壳体内的含有电极的水性电解质。气体的浓度由电流计确定。

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