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7377901 |
Apparatus for collection of airway gases
The invention relates to an apparatus for collection of airway gases from a subject comprising a first means for producing closure of the velum of the subject, and a second means for collection of...
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7377352 |
Vehicle ignition interlock systems with mouth alcohol contamination sensor
A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The breath analyzer detects the...
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7347825 |
Device and method for assessing asthma and other diseases
Device and method for non-invasively monitoring asthma and other respiratory diseases, as well as non-respiratory diseases. The method includes collecting condensate from a subject's breath,...
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7341563 |
Sidestream gas sampling system with detachable sample cell
A sidestream sampling system includes a sidestream gas measurement assembly and a sample cell configured to be assembled therewith. The sidestream gas measurement assembly includes a receptacle for...
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7338454 |
Breath test
A method of assessing the state of the lining of the small intestine in a mammal or human injesting a suitable labelled test substrate which requires conversion by a brush border enzyme for...
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7335164 |
Multiple function airway adapter
An integrated airway adapter capable of monitoring any combination of respiratory flow, O 2 concentration, and concentrations of one or more of CO 2 , N 2 O, and an anesthetic agent in real time,...
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7329390 |
Device and process for measuring breath alcohol
A breath alcohol measuring device includes a flow chamber, for receiving exhaled breathing gas of a person, with a flow diaphragm. A differential pressure sensor has a first measuring connection...
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7301125 |
Heater for optical gas sensor
A heater for a window of an optical gas sensor is provided. The heater may be positioned over a portion of the window or may form at least a portion of the window. Alternatively, the heater may be...
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7300408 |
Spectroscopic breath analysis
Methods and apparatus for the analysis of exhaled breath by spectroscopy are disclosed. An optical cavity containing the exhaled breath, typically comprising a pair of opposing high reflectivity...
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7297120 |
Respiratory monitoring, diagnostic and therapeutic system
Disclosed is a system and method for monitoring, diagnosing, and treating certain medical conditions, such as asthma, gastroesophageal reflux or laryngopharyngeal reflux. The system includes a mask...
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7294839 |
Low volume sample cell and gas monitoring system using same
A sample cell, which is a component of a gas monitoring system, includes a sample cell body and a sample cell core installed therewith. The sample cell is coupled to a sampling tube that...
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7285246 |
Hand-held fluid analyzer
A hand-held device detects the presence of a preselected substance in the breath. A deformable housing forms a test chamber for interacting an indicator reagent with the breath. An ampoule...
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7279132 |
Chemical vapor sensor having an active and a passive measurement mode
A chemical vapor sensor is provided that measures a chemical species of interest with high sensitivity and chemical specificity. In an aspect, an ethanol vapor sensor is provided, sized for being...
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7235054 |
Measuring head for a gas analyser
A measuring head for the analysis of respiratory gases to and from a patient connected to a respirator, includes an aperture ( 7 ) which is intended to be placed over an adapter ( 2 ) through which...
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7218236 |
Vehicle ignition interlock systems that detect the presence of alcohol within vehicles
A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The breath analyzer detects the...
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7207947 |
System and method for detecting circadian states using an implantable medical device
Techniques are provided for detecting the circadian state of a patient using an implantable medical device based on selected blood carbon dioxide (CO 2 ) parameters. In one example, the implantable...
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7204335 |
Vehicle sobriety interlock device
An interlock device for measuring the sobriety of a potential vehicle operator is coupled to the starting mechanism of the vehicle. The interlock device includes a microprocessor controlled handset...
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7171842 |
Breath alcohol measuring device
A breath alcohol measuring device is provided with a pressure sensor ( 2 ) for detecting a signal representative of the breathing air flow and with an electrochemical sensor ( 1 ) for detecting a...
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7156813 |
Flow-independent parameter estimation based on tidal breathing exhalation profiles
Parametric characterization of nitric oxide (NO) gas exchange using a two-compartment model of the lungs is a non-invasive technique to characterize inflammatory lung diseases. The technique...
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7104964 |
Non-invasive device and method for the diagnosis of pulmonary vascular occlusions
This invention involves a device and method for ascertaining the functioning of the respiratory system and determining whether a pulmonary embolism is present. The device comprises an apparatus...
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7101341 |
Respiratory monitoring, diagnostic and therapeutic system
Disclosed is a system and method for monitoring, diagnosing, and treating certain respiratory conditions, such as asthma. The system includes a mask apparatus fitted with a pH sensor and...
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7101340 |
Spectroscopic breath profile analysis device and uses thereof for facilitating diagnosis of medical conditions
A medical diagnostic device for analyzing gases in expired breath. The device includes a spectroscopic analyzer component for obtaining a patient's breath concentration profile; a computer operably...
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7096714 |
Volatile signature detector and associated methods
A detector (D) for detecting the volatile signature of one or more substances, e. g. alcohol and/or cannabis, on the breath (MG) of a consumer (P), using several sensors (CT 1 , CT 2 , CT 3 ). The...
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7074196 |
Algorithms, systems, and methods for estimating carbon dioxide stores, transforming respiratory gas measurements, and obtaining accurate noninvasive pulmonary capillary blood flow and cardiac output measurements
Methods for estimating the volume of the carbon dioxide stores of an individual's respiratory tract include determining a carbon dioxide store volume at which a correlation between corresponding...
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7070570 |
Method and means of physiological monitoring using sonification
The invention resides in a respiratory sonification monitoring method and system for monitoring respiration in a subject including the use of capnometric means for measuring carbon dioxide...
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7063667 |
Isotopic gas analyzer
An NDIR spectrometer based on the use of wavelength specific lamp sources, whose emission spectrum consists of discrete, narrow lines characteristic of the isotope present in the lamp, and which it...
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7052468 |
Method and apparatus for detecting environmental smoke exposure
The present invention includes a method and apparatus for detecting exposure to environmental tobacco smoke by analyzing a sample of breath using electronic sensor technology, including surface...
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7040183 |
Arrangement for passive gas sampling
An arrangement for passive gas sampling of a breathing gas in a breathing system allows sampling during both inspiration and expiration. The arrangement has a tube-piece having a first connector...
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7032431 |
Non-invasive, miniature, breath monitoring apparatus
A means of miniaturizing the rugged, spectroscopic gas analyzer for rapid, non-invasive, multicomponent analysis of breath described in application Ser. No. 09/891,106, Filed on Jun. 25, 2001. A...
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7025731 |
Methods for accurately, substantially noninvasively determining pulmonary capillary blood flow, cardiac output, and mixed venous carbon dioxide content
A method for noninvasively determining the pulmonary capillary blood flow or cardiac output of a patient includes measurement of respiratory flow and carbon dioxide pressure of the patient's...
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7018340 |
Apparatus and method for non-invasively measuring cardiac output
Apparatus and methods for non-invasively determining the cardiac output or pulmonary capillary blood flow of a patient using partial re-breathing techniques. The apparatus includes a substantially...
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7014612 |
Method for diagnosis of helicobacter pylori infection
A rapid, non-invasive breath-test method and device for diagnosing the presence or absence of H. pylori in a subject without administration of isotopic tracers is described. The device consists...
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7004909 |
Diagnostic method for high sensitivity detection of component concentrations in human gas emissions
A method for detecting component concentrations in human gas emissions such as breath and gas emitted from skin. A gas sample containing a specified component is collected into a gas cell using a...
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6991607 |
Process and device for measuring exhaled air to determine metabolic function of a living being
A process and a device are provided for determining the proportion of a component of the air exhaled by a breathing living being that is characteristic of the metabolic function of such living...
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6940411 |
Personal carbon monoxide alarm device
A personal alarm device for warning an individual of the presence of an unhealthy amount of carbon monoxide in the blood of the individual, comprising a mouthpiece, a carbon monoxide detector, and...
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6908438 |
Apparatus and method for non-invasively measuring cardiac output
Apparatus and methods for non-invasively determining cardiac output using partial re-breathing techniques are disclosed in which the apparatus is constructed with an instantaneously adjustable...
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6896713 |
Liquid separator with holder unit
A liquid separator for separating liquid from gases, comprises a water trap ( 1 ) that includes a container ( 3 ), a connector ( 5 ) for incoming gas flow, a separation chamber ( 4 ) that includes...
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6890305 |
Reagent and method for measuring lung function
The present invention relates to an assay for evaluating alveolar exchange of oxygen. A 13 C-labeled substrate, such as 13 C-sodium bicarbonate is administered to a subject by oral or iv intake,...
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6888101 |
Heater for optical gas sensors, gas sensors including the heater, and methods
A heater for a window of an optical gas sensor is provided. The heater may be positioned over a portion of the window or may form at least a portion of the window. Alternatively, the heater may be...
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6884223 |
Method for detecting α-oxoaldehydes in the whole blood, blood plasma and/or serum of a patient
A method for detecting α-oxoaldehydes in the whole blood, blood plasma and/or serum of a patient. A respiratory air sample is analyzed for the presence of at least one α-oxoaldehyde, and the...
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6866637 |
Apparatus and method for the estimation of flow -independent parameters which characterize the relevant features of nitric oxide production and exchange in the human lungs
The invention provides an estimation of key flow-independent parameters characteristic of NO exchange in the lungs, namely: 1) the steady state alveolar concentration, C alv,ss ; 2) the maximum...
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6841391 |
Medical applications of artificial olfactometry
The present invention provides methods for detecting the presence of an analyte indicative of various medical conditions, including halitosis, periodontal disease and other diseases are also...
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6837095 |
Apparatus, systems and methods for detecting and transmitting sensory data over a computer network
A vapor sensing device that is sufficiently small and lightweight to be handheld, and also modular so as to allow the device to be conveniently adapted for use in sensing the presence and...
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6792793 |
Breath measurement instrument and breath alcohol interlock device incorporating same
A breath measurement instrument using a combination of breath pressure, temperature, and humidity measurements to determine whether or not breath samples are human and properly delivered. Valid...
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6783573 |
Gas sampling system
The present invention is directed to a gas sampling system for conducting respiratory gases from a patient respiratory gas output mechanism to a respiratory gas monitoring device. A gas sampling...
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6759010 |
Use of an array of polymeric sensors of varying thickness for detecting analytes in fluids
Chemical sensors for detecting the activity of a molecule or analyte of interest is provided. The chemical sensors comprise and array or plurality of sensors that are capable of interacting with a...
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6748792 |
Impairment detection and interlock system with tester identification
A system, device, and method for determining whether an individual has consumed, is intoxicated, or is otherwise impaired by alcohol is disclosed. Further, a device capable of positively...
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6726637 |
Breath collection apparatus
An arrangement for the collection, concentration, and optional analysis of volatile organic components in alveolar breath includes a condensation unit which removes water vapor from the alveolar...
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6726636 |
Breathalyzer with voice recognition
A Voice recognition Breathalyzer comprises of a microphone for transducing spoken expression into electronic signals and a breathalyzer sensor for transducing given breath content into electronic...
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6709403 |
Manometer CO2 detector combination
A top and bottom housing joined together have a patient port and ventilation port in axial alignment. The top housing contains dry indicator paper for changing color in response to the presence of...
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