Abstract: Devices and methods for sleep detection involve the use of an adjustable threshold for detecting sleep onset and termination. A method for detecting sleep includes adjusting a sleep threshold associated with a first sleep-related signal using a second sleep-related signal. The first sleep-related signal is compared to the adjusted threshold and sleep is detected based on the comparison. The sleep-related signals may be derived from implantable or external sensors. Additional sleep-related signals may be used to confirm the sleep condition. A sleep detector device implementing a sleep detection method may be a component of an implantable pulse generator such as a pacemaker or defibrillator.

Abstract: The invention provides a breath testing device which includes a visual indicating agent which changes color in the presence of an odor associated with bad breath, such as sulfur and ammonia odors. An example of the visual indicating agent is 4,4?-bis(dimethylamino)-benzhydrol (Michler's hydrol or BDMB) and related dyes having a similar chemical structure. The indicating agent is applied to a substrate which is then inserted into a tube or straw, or which covers one end of a straw. When a user with bad breath blows into the tube or straw, the indicating agent will change color. The breath testing devices provide a quick and affordable means for a user to test their breath, and they may be packaged in discreet, pocket-sized dispensers which can be carried in a pocket or purse.

Abstract: Methods and devices to determine rate of particle production and the size range for the particles produced for an individual are described herein. The device (10) contains a mouthpiece (12), a filter (14), a low resistance one-way valve (16), a particle counter (20) and a computer (30). Optionally, the device also contains a gas flow meter (22). The data obtained using the device can be used to determine if a formulation for reducing particle exhalation should be administered to an individual.

Abstract: A mobile electronic device comprising an odor sensor and methods of operation are disclosed. An odor is detected using an odor sensor coupled to the mobile electronic device, and a predetermined process is performed if the odor is a predefined odor.

Abstract: The invention provides a breath testing device which includes a visual indicating agent which changes color in the presence of an odor associated with bad breath, such as sulfur and ammonia odors. An example of the visual indicating agent is 4,4?-bis(dimethylamino)-benzhydrol (Michler's hydrol or BDMB) and related dyes having a similar chemical structure. The indicating agent is applied to a substrate which is then inserted into a tube or straw, or which covers one end of a straw. When a user with bad breath blows into the tube or straw, the indicating agent will change color. The breath testing devices provide a quick and affordable means for a user to test their breath, and they may be packaged in discreet, pocket-sized dispensers which can be carried in a pocket or purse.

Abstract: A bad breath detection system comprising: a bad breath detection device; and a indicating agent on the bad breath detection device wherein when a user places the bad breath detection device in their mouth the indicating agent provides a visual cue depending on a concentration of malodorous compounds in a saliva sample of the user to indicate to the user a level of breath freshness. The bad breath detection device may be embodied in various forms including a tube where the user blows into the tube for detection, a strip where an end of the strip is placed in the user's mouth or a disc where the user places the disc into their mouth for detection.

Abstract: A caloric consumption measuring device measures a caloric consumption of a user during an activity. The caloric consumption measuring device includes a first personal data creating component, a second personal data creating component, a heart rate input component, and a caloric consumption calculating component. The first personal data creating component sets at least one personal physical condition of the user and creates first personal data based on the set personal physical condition. The second personal data creating component sets at least one environmental condition of the user and creates second personal data based on the environmental condition. The heart rate input component receives data indicative of a detected heart rate. The caloric consumption calculating component calculates the caloric consumption based on the detected heart rate that was received and the first and second personal data created by the first and second personal data creating components.

Abstract: A mouthpiece with an eject mechanism is disclosed. The mouthpiece includes an eject mechanism adapted to conform to a testing device, such as a breath analysis device. The eject mechanism allows for hygienic removal of a used mouthpiece from the testing device. A guiding surface allows for alignment of the mouthpiece with the testing device.

Abstract: The invention provides a breath testing device which includes a visual indicating agent which changes color in the presence of an odor associated with bad breath, such as sulfur and ammonia odors. An example of the visual indicating agent is 4,4?-bis(dimethylamino)-benzhydrol (Michler's hydrol or BDMB) and related dyes having a similar chemical structure. The indicating agent is applied to a substrate which is then inserted into a tube or straw, or which covers one end of a straw. When a user with bad breath blows into the tube or straw, the indicating agent will change color. The breath testing devices provide a quick and affordable means for a user to test their breath, and they may be packaged in discreet, pocket-sized dispensers which can be carried in a pocket or purse.

Abstract: Methods, systems and devices are provided for monitoring respiratory disorders based on monitored factors of a photoplethysmography (PPG) signal that is representative of peripheral blood volume. The monitored factors can be respiratory effort as well as respiratory rate and/or blood oxygen saturation level. The systems and devices may or may not be implanted in a patient.

Abstract: The present invention is directed to a dental cleaning device having, in combination, a toothbrush and a gas detecting system. The tooth brush has a brush portion and a handle portion. The brush portion of the toothbrush has dental cleaning devices allowing the user to clean teeth. The odor detection system is integrated into the toothbrush and generally comprises a gas sensor indicator for indicating presence of predetermined gas. The system allows the user to brush their teeth and either simultaneously or at differing times, detect any odors associated with bad breath. The device further allows the user a mechanism to know when bad breath causing odors are eliminated.

Abstract: The invention provides a breath testing device which includes a visual indicating agent which changes color in the presence of an odor associated with bad breath, such as sulfur and ammonia odors. An example of the visual indicating agent is 4,4?-bis(dimethylamino)-benzhydrol (Michler's hydrol or BDMB) and related dyes having a similar chemical structure. The indicating agent is applied to a substrate which is then inserted into a tube or straw, or which covers one end of a straw. When a user with bad breath blows into the tube or straw, the indicating agent will change color. The breath testing devices provide a quick and affordable means for a user to test their breath, and they may be packaged in discreet, pocket-sized dispensers which can be carried in a pocket or purse.

Abstract: The microwave hemorrhagic stroke detector includes a low power pulsed microwave transmitter with a broad-band antenna for producing a directional beam of microwaves, an index of refraction matching cap placed over the patients head, and an array of broad-band microwave receivers with collection antennae. The system of microwave transmitter and receivers are scanned around, and can also be positioned up and down the axis of the patients head. The microwave hemorrhagic stroke detector is a completely non-invasive device designed to detect and localize blood pooling and clots or to measure blood flow within the head or body. The device is based on low power pulsed microwave technology combined with specialized antennas and tomographic methods. The system can be used for rapid, non-invasive detection of blood pooling such as occurs with hemorrhagic stoke in human or animal patients as well as for the detection of hemorrhage within a patient's body.

Abstract: Techniques are provided for detecting the circadian state of a patient using an implantable medical device based on selected blood carbon dioxide (CO2) parameters. In one example, the implantable device tracks changes in end tidal CO2 (etCO2) levels and changes in maximum variations of pCO2 levels per breathing cycle (?cycleCO2) over the course of the day and determines the circadian state based thereon. It has been found that average etCO2 levels are generally highest and average ?cycleCO2 levels are generally lowest while a patient is asleep and opposite while a patient is awake. Hence, by tracking changes in average etCO2 and ?cycleCO2 levels over the course of the day, circadian states can be detected. Minute ventilation and activity levels are used to assist in the determination of the circadian state. Additional techniques are directed to detecting the stage of sleep.

Abstract: The invention provides a method for the rapid assessment of the degree of halitosis comprising the steps of a) obtaining a sample of fluid and/or tissue from the oral cavity of a subject, b) assessing the amount of &bgr;-galactosidase in said sample, c) determining the degree of halitosis in said subject, by comparing the result obtained in step b) with appropriate reference values.

Abstract: A nebulizer includes a peak flow meter measuring the respiratory function of a patient and a nebulizer as a inhaler of a liquid medicine. The patient blows in the breath from a peak flow meter blow-in section of the nebulizer into the peak flow meter to measure the respiratory function. Further, the patient inhales the liquid medicine in a liquid medicine bottle inserted into a liquid medicine bottle insert opening from a nebulizer inhale opening. Simultaneously, outer air measurement is performed with a temperature sensor and a humidity sensor of the nebulizer. Such measurement data and inhale recording data are transmitted to a server from an external connection. Thus, a health site of the patient based on the data is opened on a network. The patient can obtain appropriate advice from a doctor, and a liquid medicine supply from a service provider at appropriate timing.

Abstract: The present invention provides a device for detecting the presence of an analyte, such as for example, a lightweight device, including: a sample chamber having a fluid inlet port for the influx of the analyte; a fluid concentrator in flow communication with the sample chamber wherein the fluid concentrator has an absorbent material capable of absorbing the analyte and capable of desorbing a concentrated analyte; and an array of sensors in fluid communication with the concentrated analyte to be released from the fluid concentrator.

Abstract: The invention refers to a colorimetric sensor of halitosis, sensitive to volatile sulphur compounds. Said sensor comprises a solid support and a redox calorimetric reagent sensitive to volatile sulphur compounds.

Abstract: In a lung therapy method, hyperpolarized gas is administered for one breath to a subject, and a magnetic resonance scan of at least one lung of the subject is conducted. The data obtained from the scan are evaluated, specifically to determine the extent and distribution of infusion of hyperpolarized gas in the lung, as an indication of the alveolae in the lung which are open. Based on the evaluation of the data obtained in the magnetic resonance scan, a determination is made as to whether administration of a surfactant is necessary in order to improve opening of the lung. If a surfactant is administered, the procedure can be repeated to obtain an updated dataset, which can be evaluated to determine whether the administered surfactant has been effective.

Abstract: A method and apparatus for diagnosing the presence and extent of halitosis activity are disclosed. A method includes assaying for the presence of sulfides on the surface of a subject's tongue in order to determine the concentrations of sulfides in the fluids.