| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073230300 | Breath analysis | 53 |
| 20100050736 | FLUID ANALYZER SYSTEMS - The radiation emitted by the various components in a sample of a fluid wherein the radiation emitted by activated molecules within the sample of the fluid is used to determine the nature of and quantities of materials present in the fluid and a fluid analyser system comprising a receptacle(s) and an analysis apparatus containing a consistent light condition compartment containing temperature detection device(s) into which the receptacle containing the fluid sample may be placed and means are provided for activating the molecules within the sample so that the radiation emitted by the sample may be detected and amplified. | 03-04-2010 |
| 20110192213 | METHOD AND SYSTEM FOR MONITORING AND REDUCING RUMINANT METHANE PRODUCTION - A method and system for reducing methane emissions by ruminants. The method includes providing a feed dispenser for feeding ruminants nutrient supplements, and the feed dispenser includes a gas analyzer where a ruminant places its head. The method includes determining a particular ruminant has accessed the feed dispenser such as by reading an identifier from an RFID ear tag and operating the feed dispenser to provide a ration of methane-controlling nutrient supplement. The method includes using the gas analyzer to determine levels of carbon dioxide and methane and operating a data analyzing station to determine a ratio of methane to carbon dioxide and modify the type or amount of nutrient supplement for the ruminant for a next feeding to control methane production or achieve an animal production goal, such as by operating a hopper with supplement compartments. The unit can be monitored remotely and controlled through an Internet connection. | 08-11-2011 |
| 20130074577 | PORTABLE BREATH ANALYSER APPARATUS - A portable breath analyzing device to measure the rate of partial gas that is exhaled in the breath fluid. The device includes a rechargeable power supply unit, a device to emit pulsated infrared radiation, an infrared receiver, and a measuring vessel. The emission device includes a heating element; the measuring vessel includes a metallic tube whose interior surface is polished and coated with a deposit that reflects at least the infrared radiation of wavelengths that are between (9 μm, 10 μm) and at each end of the tube, a nozzle comprising a cone-shaped section meant to be placed in the tube axis. The infrared emission device is placed on the longitudinal axis of the tube, at the level of one of the nozzles, and the receiver is placed on the longitudinal axis, at the level of the other nozzle. | 03-28-2013 |
| 20120174651 | Mouth Alcohol Tester - This application discloses a system for detecting mouth alcohol which is integrated with a breath-measuring instrument. In an embodiment, the breath-measuring instrument comprises a single fuel cell system, wherein the single fuel cell measures an individual's alveolar breath as well as detection of any mouth alcohol. In a further embodiment, the breath-measuring instrument comprises a first fuel cell and a second fuel cell, wherein the first fuel cell measures alveolar breath and the second fuel cell detects mouth alcohol. | 07-12-2012 |
| 20100043524 | ALCOHOL DETECTION SYSTEM AND METHOD FOR VEHICLE - An alcohol detection system for a vehicle has an alcohol sensor, for which alcohol measurement preparation processing such as heating the alcohol sensor to a predetermined temperature is performed, so that the alcohol sensor operates under the stable operation state. The alcohol measurement preparation processing is started, before a driver actually gets in the vehicle. For example, the preparation processing is started, when a predetermined manipulation of a driver on the vehicle before entering the vehicle is detected. The manipulation may be unlocking or opening of a vehicle door. | 02-25-2010 |
| 20100043523 | METHOD AND DEVICE FOR TESTING THE MEASURING ACCURACY OF A MEASURING DEVICE - A method for testing the measuring accuracy of a measuring device ( | 02-25-2010 |
| 20090044597 | Breath sampling device - A hollow container defining a sample chamber is formed of at least two parts which fit together and have apertures therein. One of the parts is displaceable relative to the other part between a first relative disposition of the parts in which the apertures are open so as to provide a clear path for air to pass through the container and a second relative disposition of the parts in which the apertures are closed so that there is no path for air to pass through and a volume of air is trapped in the chamber. In one embodiment part is axially moveable relative to the other part. In another embodiment where the parts are tubular, one of the parts is rotatable relative to the other. | 02-19-2009 |
| 20130086976 | APPARATUS FOR MEASURING CONCENTRATION OF CO2 FOR VEHICLE - An apparatus for measuring a concentration of CO | 04-11-2013 |
| 20100269566 | SYSTEM AND METHOD FOR DETECTING AND MEASURING ETHYL ALCOHOL IN THE BLOOD OF A MOTORIZED VEHICLE DRIVER TRANSDERMALLY AND NON-INVASIVELY IN THE PRESENCE OF INTERFERENTS - This invention relates to a system and method that can quickly and accurately detect and measure ethyl alcohol in the blood of a motorized vehicle driver transdermally and non-invasively within minutes of ethanol consumption and in the presence of interferents. The system includes an array of sensors embedded into the steering mechanism of a motorized vehicle, a data base of patterns produced through empirical testing of various analytes in various combinations and concentrations, neural net based pattern recognition algorithms to ascertain the driver's transdermal alcohol concentration and a database derived from human testing, correlating the driver's transdermal alcohol concentration with the driver's blood alcohol concentration. The detection system is integrated with a motor vehicle decision module which can prevent the operation of a motorized vehicle by a driver whose BAC exceeds a preset limit. | 10-28-2010 |
| 20130091924 | SENSOR INTERROGATION - A method of testing a system, which has at least one electrochemical sensor for detecting an analyte gas within a housing of the system, and the housing has an inlet, includes exhaling in the vicinity of the inlet of the housing of the system and measuring a response to exhaled breath to test one or more transport paths of the system. Measuring the response to exhaled breath may, for example, include measuring the response of a sensor within the housing of the system that is responsive to the presence of exhaled breath. The sensor responsive to the presence of exhaled breath may, for example, include an electrochemically active electrode responsive to a gas within exhaled breath. The electrochemically active electrode may, for example, be responsive to carbon dioxide or to oxygen. | 04-18-2013 |
| 20130061656 | METHOD AND DEVICE FOR DETERMINING GREENHOUSE GAS, IN PARTICULAR METHANE, EMITTED BY A RUMINANT, IN PARTICULAR A DAIRY ANIMAL - A method and a device for determining the emission of greenhouse gas, in particular methane, by ruminants, in particular dairy animals includes counting eructations (“belches”) of the animal. This is done by measuring a signal linked to the eructations, for example sound with a microphone. Given that the methane content of an eructation of this type is more or less constant, the total methane emission can be derived therefrom by counting. | 03-14-2013 |
| 20090007634 | Mouth Alcohol Tester - This application discloses a system for detecting mouth alcohol which is integrated with a breath-measuring instrument. In an embodiment, the breath-measuring instrument comprises a single fuel cell system, wherein the single fuel cell measures an individual's alveolar breath as well as detection of any mouth alcohol. In a further embodiment, the breath-measuring instrument comprises a first fuel cell and a second fuel cell, wherein the first fuel cell measures alveolar breath and the second fuel cell detects mouth alcohol. | 01-08-2009 |
| 20130118228 | STRESS-BASED SENSOR, METHOD, AND APPLICATIONS - A composite, analyte sensor includes a substrate; a micro- or nano-electro-mechanical (MEMS; NEMS) resonator that is coupled to the substrate at least two edge locations (i.e., it is at least doubly-clamped) of the resonator, wherein the resonator is in a statically-buckled state near a buckling transition point of the resonator; and a chemically-responsive substance covering at least a portion of the surface of the resonator that will undergo a conformational change upon exposure to a given analyte. The resonator may be a double-clamped, statically-buckled beam (or bridge), a multiply-clamped, statically-buckled dome (or crater), or other resonator geometry. The sensor may include two or more at least double-clamped, statically-buckled, composite MEMS or NEMS resonators each operating near a buckling transition point of the respective resonator, and each characterized by a different resonant frequency. A method for sensing an analyte in ambient air. | 05-16-2013 |
| 20110277537 | ALCOHOL DRINKING STATE CHECK DEVICE - A to-be-called side device includes an alcohol drinking state check means for performing an alcohol drinking state check of a user, a peripheral state obtaining means for obtaining peripheral states by sound and image to keep an illegal communication as to the check performed between a person who monitors the check and the user as evidence, a temporary record continuation means for continuing the temporary record of the peripheral states obtained by the peripheral state obtaining means, and a pre-check/post-check record means for recording the peripheral state for 10 minutes before the check and the peripheral state for 10 minutes after the check in the respective checks, wherein the pre-check/post-check record means obtains the record of the peripheral state at least before the check from the record by the temporarily record continuation means in the record of the peripheral states for 20 minutes before and after the check. | 11-17-2011 |
| 20110277538 | Volatile Organic Compounds as Diagnostic Markers in the Breath for Lung Cancer - A set of volatile organic compounds is provided, comprising at least butylated hydroxy toluene or 4,6-di(1,1-dimethylethyl)-2-methyl-phenol for breath analysis. Methods of use thereof in diagnosing, monitoring or prognosing lung cancer are also disclosed. | 11-17-2011 |
| 20110283770 | BREATH ANALYSIS - A method and apparatus for breath analysis from a test person who may be incapable of delivering controlled forced expiration. Breath sampling may be essentially contactless and is provided by active air intake to measuring cell ( | 11-24-2011 |
| 20100170323 | COMBINED DEVICE FOR ANALYTICAL MEASUREMENTS - A method for measuring the concentration of a component gas in a gas stream in the presence of water vapor comprises introducing a gas stream into a gas analyzer, measuring in the gas analyzer the concentration of the component gas and storing a value representing the measured concentration, measuring the water vapor pressure in the gas analyzer and storing a value representing the measured water vapor pressure; and measuring the total pressure of the gas stream and storing a value representing the measured total pressure of the gas stream. | 07-08-2010 |
| 20090282896 | CONNECTING COMPONENT FOR A BREATHING TUBE WITH A SENSOR FOR MEASURING THE GAS FLOW - A breathing tube for a sensor ( | 11-19-2009 |
| 20090049890 | MULTI-MODULED NANOPARTICLE-STRUCTURED SENSING ARRAY AND PATTERN RECOGNITION DEVICE FOR DETECTION OF ACETONE IN BREATH - The present invention is directed toward a multi-moduled nanoparticle-structured sensing array and pattern recognition device for detection of acetone in breath. | 02-26-2009 |
| 20100089121 | METHOD AND DEVICE FOR TESTING THE MEASURING FUNCTION OF A MEASURING DEVICE - The present invention relates to the field of gas measurements, and more specifically to the field of testing the measuring function of a measuring device ( | 04-15-2010 |
| 20090272174 | Chemical vapor sensor system and method thereof - A chemical vapor sensor system and method are provided, wherein the system includes an air input device, a light source, a detector, a sample chamber, and a processor. The air input device includes at least a sample input port, a reference input port, and an output port. The light source emits light, and the detector receives at least a portion of the emitted light. The sample chamber is in fluid communication with the output port, wherein the air alternatively enters the air input device from the sample input port and the reference input port and enters the sample chamber. The processor receives an output signal from the detector based upon a detection of at least carbon dioxide and ethanol in the air in the sample chamber, wherein the processor determines a blood alcohol content of a person whose breath was received in the sample input port. | 11-05-2009 |
| 20090007633 | Measuring Device for Measuring the Oxygen Fraction in Respiratory Air - A measuring device for measuring the oxygen fraction in respiratory air, especially in aircraft, has an oxygen sensor to which an electrical, analog, sinusoidal input signal with a fixed base frequency is fed and which emits an electrical, analog output signal containing a useful signal component with a double-base frequency and at least one interference signal component with a base frequency, in addition to an evaluation circuit for determining a measured value as a measure of the oxygen fraction, the output signal being fed to the circuit. To improve measuring accuracy, while simultaneously reducing fluctuations in the measured values, the output signal and a sinusoidal reference signal with a base frequency are fed to an adder located between the oxygen sensor and evaluation circuit, the reference signal phase and amplitude being set such that the interference signal component is largely compensated for in the output signal of the adder. | 01-08-2009 |
| 20090260418 | DISPOSABLE SENSOR FOR USE IN MEASURING AN ANALYTE IN A GASEOUS SAMPLE - The present invention is a disposable sensor for use with a device that quantifies analytes in a gaseous sample. It comprises (i) a sensing element, (ii) a means for interfacing the disposable sensor with a gas analysis device, and (iii) a housing. When used with a device that can quantify the concentration of an analyte in a gas sample, the present invention facilitates the use of exhaled breath analysis as a clinical tool. | 10-22-2009 |
| 20090205407 | MACHINE FOR TESTING THE BREATH ALCOHOL (ETHANOL) CONTENT OF PERSONS HAVING DRUNK ALCOHOLIC BEVERAGES - A method for testing the breath alcohol (ethanol) content with an embedded PC computer with a touch screen display uses software graphics with icons and graphs displaying an instant representation of the flow rate and breath alcohol concentration of the breath being delivered by the person taking the test. A software graphics using icons and graphs provides control panels by which a test administrator or technician is able to control fundamental operations and adjustments of the instrument. A geared, stepped, multiple optical component placement system having dual plates retains these components, and is capable of precision placement of all components using one electro-mechanical device. An infrared optical filter system operates between 3 and 10 microns. The results are stored in memory and are capable of comparisons to empirical tables for chemical identification. | 08-20-2009 |
| 20100251804 | DEVICE AND PROCESS FOR RECOGNIZING A CORRECT USE OF AN ALCOHOL MEASURING DEVICE - A device and a process are provided for recognizing a correct use of an alcohol measuring device by a test subject. At least one alcohol measuring device is provided with a signal transmitter, an analysis and control unit and a camera unit. An image field of the camera unit is divided into an inner image field area and an outer image field area. The inner image field area detects at least the face area of the test subject. The camera unit records changes at a boundary between the inner image field area and the outer image field area. A signal sent by the signal transmitter in the inner image field area can be detected by the camera unit. | 10-07-2010 |
| 20120192618 | CO2 MEASUREMENT IN HIGH RELATIVE HUMIDITY ENVIRONMENTS - A CO2 measuring device for use in a high humidity environment typically found in re-breathing apparatus, especially underwater re-breathing apparatus, that allows commonly available CO2 gas detectors to function properly and further provides for remote, continuous and/or quantitative sensing of CO2. Under normal conditions found inside re-breathers, a 100% relative humidity condensing environment exists that prevents the use of commercially available CO2 detectors which typically require relative humidity to be less than about 90 to 95% for proper operation. A venturi mixing device is disclosed that is driven by pressurized makeup gases routinely added into the re-breathing loop, acting to draw and mix with a portion of the moisture laden gas from the re-breather environment, creating a combined gas mixture with relative humidity well within the operating range of commercially available CO2 detectors. CO2 measurements can advantageously be corrected by the venturi mixing proportions to gain a quantitative analysis of CO2 levels present in the pre-sampled 100% relative humidity condensing environment. The excess drive energy provided by the pressurized makeup gas allows for longer sampling lines that can be advantageously placed adjacent to the mouth of the re-breathing individual allowing CO2 measurement from a remote location and when drive gas is constantly applied, further allowing for continuous measurement of CO2. | 08-02-2012 |
| 20080314115 | Compliance Apparatus - The invention relates to methods and apparatus for checking compliance with disulfiram prescription regime. The apparatus includes a device for monitoring, on a regular basis the levels of volatiles in the users breath and a comparator for comparing the test results with anticipated results and producing a non-compliance output when a non-compliance event is detected. The apparatus includes an indicator for providing an indication that carbon disulphide is present in the measured volatiles. The detector of the apparatus detects, at least acetone and carbon disulphide. | 12-25-2008 |
| 20120031166 | BEVERAGE DISGUISE FOR HAND HELD BREATHALYZER INTERFACE OF IGNITION INTERLOCK DEVICE - A breath alcohol ignition interlock device includes a mock beverage housing including at least one of breath alcohol electronics and a hand held breath alcohol analyzer therein, a mouthpiece in fluid communication with an alcohol sensor associated with the at least one of breath alcohol electronics and a hand held breath alcohol analyzer and a vent exhausting breath from the mock beverage housing. The mock beverage container housing can be disguised as a coffee cup, a fountain drink cup, a soda can and a soft drink bottle. The mouthpiece can be disguised as a coffee cup lid, a fountain drink cup straw, a soda can opening and a soft drink bottle top. A wireless communication module can support data synchronization and communications between the device and a base station installed within a motor vehicle. | 02-09-2012 |
| 20110239735 | ELECTRONIC SENSOR FOR NITRIC OXIDE - Disclosed is a semiconductor device ( | 10-06-2011 |
| 20110072883 | MULTIFUNCTIONAL CONTROL VALVE FOR GAS MEASUREMENT INSTRUMENTS - A multifunctional control valve for gas measurement instruments, e.g., for respiratory gas analysis, is disclosed. In at least one embodiment, the multifunctional control valve includes a first inlet opening, an outlet opening, a main line, and a bypass line, wherein a measurement chamber is in the main line, wherein the measurement chamber is arranged downstream of a first multiway valve which can selectively connect the main line or the bypass line with the inlet opening, and wherein the measurement chamber is arranged upstream of a second multiway valve which can selectively connect the main line or the bypass line with the outlet opening. | 03-31-2011 |
| 20110072884 | Personal breathalyzer having digital circuitry - The present invention relates to a portable, personal breath tester device for testing the blood alcohol content of the user of the device. The breath tester comprises a circuit board, wherein a sensor, a liquid crystal display, and a processing unit are installed on and electrically connected to the circuit board. The processing unit receives a voltage signal from the sensor representing the blood alcohol content of the user and converts the voltage signal to a precise value that is displayed on the liquid crystal display. | 03-31-2011 |
| 20110067480 | METHOD AND ARRANGEMENT FOR DETERMINING SAMPLE FLOW VOLUME - A method for determining a sample flow volume is disclosed herein. The method includes withdrawing the sample flow at a first and second flow rate from a gas flow, measuring a concentration of at least one gas component and measuring at least one of an airway pressure and flow. The method also includes generating first measurement results based on the concentration, generating second measurement results based on the at least one of the airway pressure and flow and setting a suitable point of comparison. The method further includes determining a first and second time delay between the point of comparison of the first and second measurement results of the first and second flow rate, providing information about the first and second sample flow rate and determining the sample volume based on differences between the first and second time delay. A corresponding arrangement is also provided. | 03-24-2011 |
| 20080314116 | BREATH-BASED SENSORS FOR NON-INVASIVE MOLECULAR DETECTION - A method of diagnosing the health of an individual by collecting a breath sample from the individual and measuring the amount of each of a plurality of analytes in the sample. The amount of each analytes is measured by fitting a time response curve of a sample-evaluation fuel cell in which the fuel cell sample electrode is contacted with the sample with the analysis based on a function of standard time response curves for an equivalent fuel cell configuration obtained separately for each of the analytes on a fuel cell with equivalent construction as sample-evaluation fuel cell. Each of the plurality of analytes is generally indicative of an aspect of the individual's health. Suitable analytes include, for example, inorganic compounds as well as compositions that exhibit negative reduction reactions at least for a portion of the time response curve. In particular, acetone exhibits a negative potential/current peak when it is an analyte in a fuel cell in an sample electrode with a counter electrode exposed to oxygen, which may or may not be introduced in the form of air. Various forms of analysis to estimate acetone concentrations in the breath can be used. | 12-25-2008 |
| 20080295573 | BREATH-BASED SENSORS FOR NON-INVASIVE MOLECULAR DETECTION - A method of diagnosing the health of an individual by collecting a breath sample from the individual and measuring the amount of each of a plurality of analytes in the sample. The amount of each analytes is measured by fitting a time response curve of a sample-evaluation fuel cell in which the fuel cell sample electrode is contacted with the sample with the analysis based on a function of standard time response curves for an equivalent fuel cell configuration obtained separately for each of the analytes on a fuel cell with equivalent construction as sample-evaluation fuel cell. Each of the plurality of analytes is generally indicative of an aspect of the individual's health. Suitable analytes include, for example, inorganic compounds as well as compositions that exhibit negative reduction reactions at least for a portion of the time response curve. In particular, acetone exhibits a negative potential/current peak when it is an analyte in a fuel cell in an sample electrode with a counter electrode exposed to oxygen, which may or may not be introduced in the form of air. Various forms of analysis to estimate acetone concentrations in the breath can be used. | 12-04-2008 |
| 20120198910 | Breath Alcohol Analyser And A Method Of Determining Whether A Driver Is In A Condition To Drive - A breath alcohol analyser capable of taking a breath sample from a driver, qualitatively and quantitatively analysing the alcohol level in the driver's breath, comparing the alcohol to an established acceptable level for driving. If the alcohol level in the breath of the driver exceeds the acceptable level for driving, the breath alcohol analyser is capable of indicating to the driver how long need the driver wait in order for the alcohol in his body to breakdown to an acceptable level. | 08-09-2012 |
| 20100192669 | PHOTO ACOUSTIC SAMPLE DETECTOR WITH LIGHT GUIDE - A photo acoustic sample detector ( | 08-05-2010 |
| 20090293589 | Chemical Impairment Detection System and Method of Use to Reduce Circumvention - A chemical impairment detection system and method of use comprising a video surveillance system adapted to record a facial image of a tester, the video surveillance system having a camera with a lens having a field of view from which the camera views images and distinguishes whether those images have appropriate construction or contrast of light intensity. The invention further comprises a control and relay module having a proper view and position determiner adapted to determine whether the facial image of the tester is properly positioned within the field of view during a chemical impairment detection test, and a test prompter to alert the tester when to begin the chemical impairment detection test. The present invention further comprises a chemical impairment detection sampling device in operable communication with and responsive to the video surveillance system, the sampling device adapted to receive a chemical impairment detection test sample from the tester. | 12-03-2009 |
| 20100031730 | DEVICE FOR MEASURING THE AMMONIA CONTENT IN A GAS MIXTURE - The invention relates to a device for measuring the ammonia content in a gas mixture. The device comprises at least one inlet and one outlet for the gas mixture, between which is situated an ammonia measuring system connected thereto. The device also comprises first regulating means for regulating the gas mixture flow through the inlet, and second means which are adapted such that they allow a measurement of the ammonia content which is substantially independent of the gas mixture flow rate. The device is preferably applied for measuring the ammonia content in exhaled air. | 02-11-2010 |
| 20110302992 | APPARATUS FOR MEASUREMENT OF GAS CONCENTRATIONS IN BREATH - A device for measuring oxygen uptake and carbon dioxide production by a respiring subject based on the use of absorption spectroscopy. An absorption spectrometer using cavity enhanced absorption spectroscopy at 763 nm to measure oxygen concentration and direct absorption or wavelength modulation spectroscopy at 2.0035 μm for carbon dioxide concentration is incorporated into a breathing tube in proximity to the respiring subject. This provides measurements of oxygen and carbon dioxide concentration with a good temporal resolution which can be combined with measurements of flow rate as a function of time to obtain oxygen uptake and carbon dioxide production on a breath-by-breath basis. The device can also measure the concentration of water vapour and of anaesthetic gases in exhaled breath. | 12-15-2011 |
| 20110079073 | Sobriety Monitoring System - A system and method of monitoring sobriety using a hand-held breath testing device that, on receipt of a user's breath, generates a breath test signal comprising substance content data and user identification data, and wirelessly transmits the breath test signal to a breath test signal receiving station. The breath test signal includes substance content data and user identification data. The substance content data includes a blood alcohol level and the user identification data includes compressed image data. The signal receiving station is monitored by a supervisor who is able to intervene should the blood alcohol level be greater than a predetermined threshold, or should the user identification data no match with a reference user identification data. | 04-07-2011 |
| 20120031165 | BREATH SAMPLING METHODOLOGY HAVING IMPROVED RELIABILITY - An improved method of breath sampling, particularly adapted for use in connection with motor vehicle alcohol breath monitoring devices, comprises the sending of a drive signal to a piston pump to draw a breath sample into a sensing chamber, the pump being connected to the sensing chamber. The operational status of the pump is monitored by monitoring the condition of a switch associated with the pump which is adapted to change state when the pump piston is withdrawn into its pump housing as a proper reaction of the pump to its drive signal and return to its original state when the pump piston is no longer withdrawn. The state condition of the of the switch is used to confirm proper pump operation in drawing the breath sample into the chamber; if proper pump operation is confirmed, the breath sample can be accepted for further processing and analysis. | 02-09-2012 |
| 20110314897 | GAS SENSING USING ULTRASOUND - A sensor chip ( | 12-29-2011 |
| 20110314896 | METHOD FOR TESTING THE FUNCTION OF A DEVICE - The function of a measuring device can be tested using a healthy person as an external control, provided that this person fulfils certain criteria and that particular method steps are adhered to. | 12-29-2011 |
| 20120151990 | HOLDER FOR A LIQUID SEPARATOR AND GAS ANALYZER FOR ANALYZING RESPIRATORY GAS SAMPLES - A holder for a liquid separator is disclosed herein. The liquid separator includes a separator body for dividing a sample flow into two separate flows, one of said flows substantially free of liquid being for the gas measurement and another of said flows including at least one of liquid and gas bypassing the measurement, and which liquid separator also includes a detachable liquid container for receiving the another flow. The holder includes a space receiving the liquid separator and also includes a frame surrounding at least partly the space and which frame including a first contact point being in contact with the separator body. The frame also includes a second contact point being in contact with the liquid container and which first contact point together with the second contact point are adapted to hold the liquid separator. | 06-21-2012 |
| 20100050735 | Gas Sensor - A sensor for sensing a target substance in a gas stream is provided, the sensor comprising: a sensing element disposed to be exposed to the gas stream, the sensing element comprising: a working electrode; a counter electrode; and a layer of ion exchange material extending between the working electrode and the counter electrode; whereby contact of the ion exchange layer with the gas stream forms an electrical contact between the working and counter electrodes. | 03-04-2010 |
| 20090320558 | Method of Making a Structure Comprising Cavities and Volumes, a Structure Comprising Cavities and Volumes, and a Gas Analyser Comprising a Structure Comprising Cavities and Volumes - Method of making a structure, a structure and a gas analyzer comprising cavities and volumes in which a multilayer structure is made by laminating single layers on top of each other to form the multilayer structure and combining them all together, in which method before the laminating step at least one layer is processed by cutting pneumatically constrictive openings therein to form pneumatic filters comprising constrictive cavities and volumes with the surfaces of the adjoining layers. | 12-31-2009 |
| 20120186328 | LIQUID SEPARATOR AND APPARATUS FOR MEASURING A RESPIRATORY GAS - A liquid separator includes: a housing including: a first part including a first chamber; a second part including a second chamber; an inflow port into which a respiratory gas flows; a process chamber configured to perform a trapping process to trap liquid from the respiratory gas; and an outflow port from which the processed respiratory gas is discharged; a filter which is disposed in the process chamber interposed between the inflow port and the outflow port, and which partitions the process chamber into the first chamber on a side of the inflow port and the second chamber on a side of the outflow port; and a heating unit configured to heat at least one of the second part, the filter, and a vicinity of the filter. | 07-26-2012 |
| 20080302170 | BREATH-BASED SENSORS FOR NON-INVASIVE MOLECULAR DETECTION - A method of diagnosing the health of an individual by collecting a breath sample from the individual and measuring the amount of each of a plurality of analytes in the sample. The amount of each analytes is measured by fitting a time response curve of a sample-evaluation fuel cell in which the fuel cell sample electrode is contacted with the sample with the analysis based on a function of standard time response curves for an equivalent fuel cell configuration obtained separately for each of the analytes on a fuel cell with equivalent construction as sample-evaluation fuel cell. Each of the plurality of analytes is generally indicative of an aspect of the individual's health. Suitable analytes include, for example, inorganic compounds as well as compositions that exhibit negative reduction reactions at least for a portion of the time response curve. In particular, acetone exhibits a negative potential/current peak when it is an analyte in a fuel cell in an sample electrode with a counter electrode exposed to oxygen, which may or may not be introduced in the form of air. Various forms of analysis to estimate acetone concentrations in the breath can be used. | 12-11-2008 |
| 20120234076 | Diagnostic Method and Breath Testing Device - The present invention relates to a diagnostic method and breath-testing device for the diagnosis of Celiac Disease or other gastrointestinal malabsorption in adults and children, and uses a hydrogen selective sensor in the form of a ZnO nanowire-based sensor fabricated using a focused ion beam (FIB/SEM) instrument or a thin film. | 09-20-2012 |
| 20120297859 | Film Bulk Acoustic Wave Resonator-Based Ethanol and Acetone Sensors and Methods Using the Same - The present invention relates generally to the detection of alcohol. The present invention relates more particularly to the film bulk acoustic wave resonator-based devices, and their use in the sensing of ethanol and/or acetone. One aspect of the invention is a method for detecting ethanol, acetone or both in a gaseous sample including: providing a film bulk acoustic wave resonator having a zinc oxide piezoelectric layer; exposing the film bulk acoustic wave resonator to the gaseous sample; determining the resonant frequency of the film bulk acoustic wave resonator; and determining the concentration of ethanol, the concentration of acetone, or both in the gaseous sample using the resonant frequency of the film bulk acoustic wave resonator. | 11-29-2012 |
| 20120266653 | ANALYSIS OF GASES - Systems and techniques for the analysis of gases for medical purposes are described. In one aspect, a system includes a sample collector to collect a physical sample associated with an individual and present a gas sample for analysis, a gas analysis device to analyze the gas sample presented by the sample collector to determine a concentration of one or more non-aqueous gases in the gas sample, a data storage device that includes information reflecting a correlation between concentration of the one or more non-aqueous gases in the gas sample and a disease state, and a data analysis device to determine a medical condition of the individual based on the concentration of one or more non-aqueous gases in the gas sample and the information. | 10-25-2012 |
| 20120272713 | Breath actuation of electronic and non-electronic devices for preventing unauthorized access - An apparatus is presented including an input unit for receiving initial breath samples; a breath analysis module for analyzing the initial breath samples; a comparison module for comparing the initial breath samples to subsequent breath inputs; and a breath authorization module for locking and/or unlocking the apparatus in response to results received from the comparison module. The apparatus may also include a storage unit for storing the initial breath samples and the subsequent breath inputs. The breath analysis module is a chemical breath component analyzer configured to: (i) count each of a plurality of select volatile organic compounds from the initial breath samples and the subsequent breath inputs received from the input unit and (ii) determine a concentration of each of the plurality of the select volatile organic compounds. | 11-01-2012 |
| 20110308297 | BREATH ALCOHOL MEASURING APPARATUS - When a pressure of a breath is kept to fall within a valid range, a CPU of a breath alcohol measuring apparatus updates a breath amount accumulation value that is an accumulation value of the amount of the breath blown into a mouth piece; when the breath pressure reaches the range outside the valid range, the CPU resets the breath amount accumulation value; and when the breath amount accumulation value reaches a valid breath amount, the CPU measures the alcohol concentration by an alcohol sensor. A breath pressure display portion is arranged at the position that can visually be recognized by a to-be-measured person who is blowing into the mouth piece. | 12-22-2011 |
