Abstract: A measurement system is disclosed that includes features for detecting the presence of nitric oxide from a gas sample, such as exhaled breath. The measurement system includes an assembly that introduces one or more reducing gases into a reactor-sensor assembly to help stabilize the sensor signal response and improve the performance of the assembly over time. Suitable reducing gases include hydrogen gas (H2), carbon dioxide (CO), benzaldehyde, bisphenol A, and other similar compounds. The reducing gas may be introduced directly from one or more surrounding gases or through tubing or inline piping. The reducing gas may be generated from the liquid or solid forms.

Abstract: An asthma management system and method are disclosed for collecting environmental and individual health data to predict the onset of asthma symptoms to allow for preventative therapy tailored on an individual basis. In one embodiment a computer system is in electrical communication with an individual user interface and one or more environmental factor collection points via a communications network. The user interface is adapted to send and receive asthma-related data including asthma profile and real-time asthma status data to the computer system via the communication network, and the environmental factor collection points are adapted to send and receive data to the computer system via the communications network.

Abstract: A respiratory monitor is disclosed that includes features for conducting multiple pulmonary function tests in a single device and for detecting the presence of nitric oxide in exhaled breath. Also described is a mouthpiece that allows for separate inhalation and exhalation pathways and for filtering inhaled and exhaled breath for predetermined species prior to exhalation into the respiratory monitor. The monitor further allows for wired, wireless and network connectivity and for cloud-based systems for communicating and correlating pulmonary data as well as relevant environmental data and displaying the data for use by patients and health care professionals.

Abstract: A breath collection and storage apparatus is disclosed for collecting and storing samples of exhaled breath for later analysis of nitric oxide contained in collected breath samples. The described apparatus provides for inhaling air into the lungs via a one-way air inflow portal through an airflow chamber via an inhalation/exhalation portal. Air inhaled into the lungs is then expelled back into the airflow chamber via the inhalation/exhalation portal and flowed into a breath storage vessel. A flow meter monitor, such as a flow meter or pressure gauge can be employed to monitor and control the rate of flow of the exhaled breath. A three-way valve can be incorporated into the air outflow portal to selectively permit discharge of exhaled breath to the outside or into the breath storage vessel.

Abstract: A gas detection apparatus for detecting the concentration of a first gas component contained in a gas under measurement includes a gas conversion section for convening the first gas component to a second gas component, a gas detection section whose electrical characteristics change with a change in the concentration of the second gas component when the gas detection section is in an activated state, and a detection state setting section. During a detection period, the detection state setting section sets the state of gas detection by the gas detection section to a detection executed state in which the gas detection section can detect the second gas component. During periods which are not the detection period, the detection state setting section sets the state of gas detection by the gas detection section to a detection suspended state in which the gas detection section does not detect the second gas component.

Abstract: A monitoring system is disclosed that includes features for detecting the presence of biomarkers from a gas sample, such as exhaled breath. An assembly includes a plurality of sensors to detect biomarkers present in exhaled breath that are associated with hyperglycemia. The biomarkers include, without limitation, acetone, ethanol, and methyl nitrate.

Abstract: A breath sensor (1) includes a heat exchange portion (41) that allows heat exchange between breath discharged from a second chamber C2 and breath introduced into a first chamber C1. Therefore, breath introduced into the first chamber C1 can be heated by breath discharged from the second chamber C2, to increase the temperature of the introduced breath. Since the temperature of the breath is increased, an effect of reducing power consumption of a heater (29c) in heating a conversion portion (21) and a detection portion (29a) is realized. The heater (29c) heats both the conversion portion (21) and the detection portion (29a) to a temperature in an operation or activation temperature range. Further, power consumption for heating to an operation temperature can be reduced by preheating the introduced breath as described above.

Abstract: A gas sensor including an adjustment unit having a conversion element for converting a gas component contained in exhaled breath introduced into a first chamber to a particular component, a sensor unit having a second chamber and including a detection element, a ceramic wiring board electrically connected to the detection element, and a single heater for heating the conversion element and the detection element. The ceramic wiring board has an opening, and a ceramic thin plate is stacked on the ceramic wiring board to cover the opening. The ceramic thin plate partially constitutes the adjustment unit and the sensor unit and separates the first chamber and the second chamber from each other. The adjustment unit, the sensor unit, and the heater are integrated in such a manner that the adjustment unit and the sensor unit are thermally coupled through the ceramic thin plate.

Abstract: A monitoring system is disclosed that includes features for detecting the presence of biomarkers from a gas sample, such as exhaled breath. An assembly may also includes a plurality of sensors to detect biomarkers present in exhaled breath that are associated with respiratory illness. The biomarkers include carbon dioxide, carbon monoxide, and nitric oxide.

Abstract: A gas sensor including a conversion section for converting NO contained in a gas under measurement to NO2, and a detection section for detecting NO2 concentration in the gas under measurement after having passed through the conversion section. The conversion section includes a substrate portion which defines a flow passage for the gas under measurement, and a porous catalyst layer disposed on a surface of the substrate portion which converts NO to NO2. The flow passage has a hollow space in which the catalyst layer is not present and through which the gas under measurement flows. The catalyst layer has a thickness of 4 to 300 ?m as measured between the substrate portion and an outermost surface of the catalyst layer, the outermost surface being exposed to the hollow space.

Abstract: A breath sensor including a main body into which breath can be introduced, a conversion section for converting a gas component contained in the breath to a specific component, and a sensing section for detecting the specific component. The sensing section constitutes a first unit including an integrated detection element and a first heater. The conversion section constitutes a second unit including an integrated catalyst and a second heater. The first unit and the second unit are disposed inside the main body so as to be separated from each other with a gap therebetween, or are in contact with each other via a heat insulating member. The first unit and second unit are in communication with each other through a pipe that allows the breath to pass therethrough, and the pipe is partially bent.

Abstract: A mixed-potential-type sensor for measuring the concentration of nitrogen oxide contained in a gas under measurement including a solid electrolyte layer having oxygen-ion conductivity, and a pair of porous electrodes formed thereon. One electrode is covered with a first layer containing tungsten oxide as a main component. The other electrode is covered with a gas impermeable second layer. The second layer is in contact with the other electrode without intervention of the tungsten oxide component. The solid electrolyte layer is porous and allows the gas under measurement to permeate from an externally exposed surface of the solid electrolyte layer to the other electrode. The concentration of the nitrogen oxide is detected from a potential difference developed between the electrodes.

Abstract: A measurement system is disclosed that includes features for detecting the presence of nitric oxide from a gas sample, such as exhaled breath. The measurement system includes an assembly that introduces one or more reducing gases into a reactor-sensor assembly to help stabilize the sensor signal response and improve the performance of the assembly over time. Suitable reducing gases include hydrogen gas (H2), carbon dioxide (CO), benzaldehyde, bisphenol A, and other similar compounds. The reducing gas may be introduced directly from one or more surrounding gases or through tubing or inline piping. The reducing gas may be generated from the liquid or solid forms.

Abstract: A gas sensor including a plate-shaped base substrate and three or more mixed-potential-type sensor elements disposed at predetermined intervals on a main face of the base substrate and electrically connected in series. A single heat generation resistor for heating the mixed-potential-type sensor elements and a temperature sensor for measuring the temperature of the base substrate are embedded in the base substrate or disposed on a face of the base substrate opposite the main face. The heat generation resistor has a pattern which overlaps the mixed-potential-type sensor elements, and the maximum value of temperature differences among the mixed-potential-type sensor elements, produced as a result of energization and control of the mixed-potential-type sensor elements to a target temperature using the temperature sensor, falls within 5% of the target temperature.

Abstract: A respiratory monitor is disclosed that includes features for conducting multiple pulmonary function tests in a single device and for detecting the presence of nitric oxide in exhaled breath. The respiratory monitor includes one or more reactor and sensor assemblies. Also described is a mouthpiece that allows for separate inhalation and exhalation pathways and for filtering inhaled and exhaled breath for predetermined species prior to exhalation into the respiratory monitor. The monitor further allows for wired, wireless and network connectivity and for cloud-based systems for communicating and correlating pulmonary data as well as relevant environmental data and displaying the data for use by patients and health care professionals.

Abstract: Systems and methods for discriminating among volatile compounds is provided using a semiconductor junction structure or sensor device. Sensor devices of the present disclosure employ a combination of hole carriers (p-type) and electron carriers (n-type) metal oxides deposited, for example, on a gold microspring array designed so that it has several leads that are at different distances from each other.

Abstract: A respiratory monitor is disclosed that includes features for conducting multiple pulmonary function tests in a single device and for detecting the presence of nitric oxide in exhaled breath. Also described is a mouthpiece that allows for separate inhalation and exhalation pathways and for filtering inhaled and exhaled breath for predetermined species prior to exhalation into the respiratory monitor. The monitor further allows for wired, wireless and network connectivity and for cloud-based systems for communicating and correlating pulmonary data as well as relevant environmental data and displaying the data for use by patients and health care professionals.

Abstract: Systems and methods for discriminating among volatile compounds is provided using a semiconductor junction structure or sensor device. Sensor devices of the present disclosure employ a combination of hole carriers (p-type) and electron carriers (n-type) metal oxides deposited, for example, on a gold microspring array designed so that it has several leads that are at different distances from each other.