Abstract: Disclosed is a headset for monitoring periocular humidity, the headset including a housing configured to be positioned on a user's face and defining a periocular air space. The headset includes a humidity sensor configured to measure a humidity of air within the periocular air space, and an ophthalmic testing unit configured to measure a physiological parameter of an eye of the user. The headset further includes a processor coupled to the humidity sensor and the ophthalmic testing unit. The processor is configured to receive the measured humidity and the measured physiological parameter, and determine an ophthalmic condition based on the measured humidity and the measured physiological parameter.

Abstract: Described herein are apparatuses and methods for measuring a hydration condition with a wearable device. The wearable device may include a housing, a flume integrated into the housing, and a sensor array. The housing may include a perimeter wall disposed around a perimeter of the housing between a top wall and a bottom wall, where the top wall, bottom wall, and perimeter wall form an inner cavity. The flume may be disposed in the inner cavity, where a first end of the flume is disposed at the bottom wall and a second end of the flume is disposed at the top wall. The sensor array may include a first vapor pressure sensor located within the flume at a first location and a second vapor pressure sensor located within the flume at a second location.

Abstract: A negative pressure device includes a drape, a wicking element, a sealing element, a reactor, a chamber and an air permeable liquid impervious element. The drape includes an opening and is made from a flexible material that inhibits passage of liquid and air through the drape other than through the opening. The wicking element is covered by the drape. The sealing element surrounds the wicking element and cooperates with the drape to define an enclosed volume covered by the drape and surrounded by the sealing element. The reactor is configured to react with a gas found in air to consume the gas. The chamber is in fluid communication with the reactor and the enclosed volume via the opening. The chamber is configured to maintain a predefined chamber volume while the gas is being consumed from the enclosed volume.

Abstract: A system to measure sweat vapor may include a skin contact sensor, a sweat vapor sensor, and a processor. The skin contact sensor may be configured to measure one or more aspects indicative of whether the measuring device is in contact with skin of a user of the measuring device. The sweat vapor sensor may be configured to measure one or more properties of sweat vapor of the user; and the processor may be communicatively coupled to the skin contact sensor and the sweat vapor sensor. The processor may be configured to confirm operation of the measuring device based on the one or more aspects measured by the skin contact sensor, and the sweat vapor sensor receiving the sweat vapor.

Abstract: A method for performing an electrophysiological analysis implemented in a system includes: a series of electrodes to be placed on different regions of the human body; a DC voltage source controlled so as to produce DC voltage pulses; a switching circuit for selectively connecting the active electrodes to the voltage source, the active electrodes forming an anode and a cathode, and for connecting at least one other high-impedance passive electrode used to measure the potential reached by the body; and a measuring circuit for reading data representative of the current in the active electrodes, and data representative of the potentials generated on at least certain high-impedance electrodes in response to the application of the pulses, the data allowing a value to be determined for the electrochemical conductance of the skin. The method also regenerates a high-impedance electrode connected to the voltage source as a cathode.

Abstract: Systems, methods, and kits are disclosed for collection, labeling and analyzing biological samples containing nucleic acid in conjunction with collecting at least one ridge and valley signature of an individual. Such devices and methods are used in forensic, human identification, access control and screening technologies to rapidly process an individual's identity or determine the identity of an individual.

Abstract: The invention relates to a liquid mixture used to test and validate test devices for inspecting objects or persons, said mixture containing glycerol and comprising a mixture of glycerol, ethanol and water.

Abstract: A sweat measuring device (1) comprising a sweat impermeable panel (40) and an adhesive skirt on one side thereof extending about its periphery to enable the panel to be secured to a user's skin is provided. The device covers a known area of a user's skin and traps sweat (42) produced by the skin under the panel. The panel (40) defines a reservoir in which sweat can accumulate and calibrations which may be associated with the reservoir to express the total sweat produced by the user as a function of the volume of sweat in the reservoir. The panel may be relatively stiff; formed by a plastics member and the skirt may extend integrally from the panel or be provided by an adhesive patch which covers the panel.

Abstract: A sweat sensing device includes a plurality of sweat collection pads communicating with a sensor. Each of the pads is activated by a timing circuit which allows one or more of the pads to be activated at a selected time and subsequent deactivated after a defined period of time. This allows for selective collection of sweat from a plurality of pads over a prolonged period of time. An impedance measuring circuit can be employed to determine if one or more of the pads becomes disconnected, in order to avoid irritation. Further, the devices can use a common microfluidic device which both transports sweat activating substance, such as pilocarpine, to the surface of the skin and directs sweat away from the skin to a sensing device.

Abstract: Devices that sense sweat and are capable of providing chronological assurance are described. The device uses at least one sensor to measure sweat or its components and to determine a sweat sampling rate. The chronological assurance is determined, at least in part, using the sweat sampling rate. The sweat sampling rate may be determined, at least in part, using a sweat volume and/or a sweat generation rate, both of which may be measured or predetermined.

Abstract: A contact sensor and system for incorporation within clothing and other wearable items to monitor activity at a body surface. The sensor includes a contact membrane having a body surface contacting area and one or more base layers of knitted fabric. The base layer(s) is thicker over an area congruent with the body surface contacting area of the contact membrane. As a result, the contact membrane is urged into the forming of a raised outer surface for projection against a body surface.

Abstract: Monitoring apparatus and methods are provided for assessing a physiological condition of a subject. At least two types of physiological information are detected from a subject via a portable monitoring device associated with the subject, and an assessment of a physiological condition of the subject is made using the at least two types of physiological information, wherein each type of physiological information is individually insufficient to make the physiological condition assessment. Environmental information from a vicinity of a subject also may be detected, and an assessment of a physiological condition of the subject may be made using the environmental information in combination with the physiological information. Exemplary physiological information may include subject heart rate, subject activity level, subject tympanic membrane temperature, and subject breathing rate. Exemplary environmental information may include humidity level information in the vicinity of the subject.

Abstract: A method for assessing sudomotor function of a patient for evaluating diabetic and autonomous neuropathy is disclosed. The method is performed in a system comprising electrodes intended to be placed on different regions of the patient body, and an adjustable DC source. The method includes applying on the electrodes DC voltage pulses of varying voltage values in order to stress sweat glands, the voltage pulses lasting given durations allowing the stabilization of electrochemical phenomena in the body, near the electrodes; collecting data representative of the current between the electrodes, and of the potential generated on the electrodes for the different DC voltages; from the data, computing results representative of the electrochemical skin conductance of the patient; reconciling the latter data with reference data obtained in the same conditions on patients identified as suffering or not from sudomotor, and identifying the patient as suffering or not from sudomotor dysfunction.

Abstract: Optical sensor devices, image processing devices, methods and computer readable code computer-readable storage media for detecting biophysical parameters, chemical concentrations, chemical saturations, vital signs and physiological information such as a malignant condition are provided. In some embodiments, the optical sensor includes an array of photodetectors, where each photodetector is configured to detect a spectrum of light. In some embodiments, the image processing device receives a live still or video electronic image, or alternatively, the electronic image is provided from an electronic storage media. Exemplary physiological parameters include but are not limited to a pulse rate, a biophysical or physiological property of skin, a cardiovascular property, a property related to an organ such as the liver or the kidneys, and a temperature fluctuation.

Abstract: A method for performing an electrophysiological analysis implemented in a system includes: a series of electrodes to be placed on different regions of the human body; a DC voltage source controlled so as to produce DC voltage pulses; a switching circuit for selectively connecting the active electrodes to the voltage source, the active electrodes forming an anode and a cathode, and for connecting at least one other high-impedance passive electrode used to measure the potential reached by the body; and a measuring circuit for reading data representative of the current in the active electrodes, and data representative of the potentials generated on at least certain high-impedance electrodes in response to the application of the pulses, the data allowing a value to be determined for the electrochemical conductance of the skin. The method also regenerates a high-impedance electrode connected to the voltage source as a cathode.

Abstract: A method is provided of systematically evaluating and treating dynamic autonomic dysregulation in a subject. The method includes having the subject sequentially assume a plurality of distinct postures that may include, for example, walking, standing, sitting or supine. In each posture of the subject, the subject is subjected to sensory stimulation while measuring at least one autonomic physiological response of the subject. The autonomic physiological response may include, for example, oxygen saturation, heart rate, pupillary response, blood pressure, sweat production, pseudomotor activity or respiration. The physiological responses in each of the distinct postures are evaluated to identify a posture wherein the subject exhibits a least amount of dysfunction.

Abstract: We report a method of a method for detecting an epileptic seizure, comprising providing a first body signal reference value; determining a current body signal value from a time series of body signals; comparing the current body signal value and the first reference value; determining a work level of the patient; determining whether the current body signal value comprises an ictal component, based on the work level and the comparing; issuing a detection of an epileptic seizure in response to the determination that the current body signal value comprises the ictal component; and taking at least one further action (e.g. warning, delivering a therapy, etc.), based on the detection. We also report a medical device system configured to implement the method. We also report a non-transitory computer readable program storage unit encoded with instructions that, when executed by a computer, perform the method.

Abstract: Various method embodiments for performing a sweat test include triggering sweating in a test area of a test subject, drying the test area, and applying a test device on the test area. The test device is used to monitor sweat production of individual SGs within the test area to provide test results for each functional SG in the test area. The test results for each functional SG in the test area are recorded.

Abstract: A wearable device is disclosed configured to provide and transmit user information. Health-related information that is associated with a user information is received and output to a user. The wearable device can include a display configured to provide a user interface and a sensor senses information associated with biological features, physiological features and/or physical activity of the user, while the device is being worn. A communications subsystem is provided that is configured to communicate with the remote computing device. The wearable device includes a processing subsystem is provided and configured to process the sensed information to provide processed user information. The processed user information is transmitted via the communication subsystem, to the remote computing device, and health-related information associated with the processed user information is received from the remote computing device. The health-related information is provided, via the user interface, on the display.

Abstract: A method is provided of systematically evaluating and treating dynamic autonomic dysregulation in a subject. The method includes having the subject sequentially assume a plurality of distinct postures that may include, for example, walking, standing, sitting or supine. In each posture of the subject, the subject is subjected to sensory stimulation while measuring at least one autonomic physiological response of the subject. The autonomic physiological response may include, for example, oxygen saturation, heart rate, pupillary response, blood pressure, sweat production, pseudomotor activity or respiration. The physiological responses in each of the distinct postures are evaluated to identify a posture wherein the subject exhibits a least amount of dysfunction.

Abstract: In one aspect, there is disclosed a system and method for rapidly and passively identifying changes in the number of open pores in the skin of an individual in response to a stimulus without contacting the individual. This is accomplished by using a thermal camera that is sensitive in the mid-wave or long-wave infrared (3-5 or 8-14 ?meters) to observe and/or count the number of skin pores opening in response to questions being asked of the individual.

Abstract: Apparatus are provided for monitoring a condition of a tissue based on a measurement of an electrical property of the tissue. In an example, the electrical property of the tissue is performed using an apparatus disposed above the tissue, where the apparatus includes at least two conductive structures, each having a non-linear configuration, where the at least two conductive structures are disposed substantially parallel to each other. In another example, the electrical property of the tissue is performed using an apparatus disposed above the tissue, where the apparatus includes at least one inductor structure.

Abstract: Apparatus for automatically monitoring sleep, including a video recorder for recording live images of a subject sleeping, including a transmitter for transmitting the recorded images in real-time to a mobile device, and a computing device communicating with said transmitter, including a receiver for receiving the transmitted images in real-time, a processor for analyzing in real-time the received images and for automatically inferring in real-time information about the state of the subject, and a monitor for displaying in real-time the information inferred by said processor about the state of the subject. A method and a computer-readable storage medium are also described and claimed.

Abstract: The present invention includes a flexible sensor suitable for contact with skin comprising: a nanocomposite; and a top layer; where the sensor provides in-situ detection in sweat or other aqueous body fluids at the skin surface of at least one physiological parameter selected from the group consisting of a physiological salt component, temperature, moisture, humidity, or combinations thereof. The present invention further includes a method of fabricating a flexible sensor suitable for contact with skin comprising: electrospinning at least one polyamide-producing monomer to form a non-conductive polyamide substrate; attaching at least one plurality of conductive nanoscale attachments, wherein the nanoscale attachments are selected from nanotubes, nanoparticles, or combinations thereof, to form an intermediate layer; and functionalizing the intermediate layer to form a top layer.

Abstract: A system and method for effectively communicating information using at least one mode of communication is described, in which information recipients proximate to a communications device within a pre-determined space and during a pre-determined time period are identified, from whom physiological state information is obtained that, when coupled with other characteristics information, is used to select from a plurality of information elements at least one information element to better target the information elements. The information element is then provided to the communications device so that it may be provided to the information recipients in the pre-determined space in a manner that is sensed by the information recipients.

Abstract: An apparatus to measure skin moisture content, the apparatus including: an electrode unit comprising a reference (R) electrode, a current (C) electrode, and a measuring (M) electrode; an operational amplifier having an inverting input terminal connect with the R electrode, and having an output terminal connect with the C electrode; a first switch connecting the R electrode and the C electrode, and releasing a connection between the R electrode and the C electrode when the electrode unit contacts with the skin of a user; and a microcontroller controlling the connection between the R electrode and the C electrode via the first switch is provided.

Abstract: A process and a device are provided for monitoring the status of the body fluids of a person. The device includes a piece of clothing with ventilating ducts, a first temperature sensor (6) and a first moisture sensor (11) for measuring the inlet flow (7) into the piece of clothing and a second temperature sensor (17) and a second moisture sensor (12) for measuring the outlet flow (10) from the piece of clothing. A pressure sensor (13) is provided sensing pressure in the inlet flow. A fan (5) or a compressed-air source is provided for transporting the cooling air into the piece of clothing. A measuring and analyzing unit (14) is connected to the sensors and the fan (5) or the compressed-air source.

Abstract: A sensor device for detecting a change fluid level within body tissue comprising a housing with bridge segments connecting at intersections arranged to circumscribe an opening. Further, antenna elements are partially seated within the housing at intersections of bridge segments, comprise a generally planar antenna mounted to a substrate material at a base of the planar antenna, and an electrical shield surrounding the substrate. Also, an outer surface of the planar antenna faces away from the substrate. The antenna elements comprise at least first and second antenna element pairs having transmitting and receiving antenna elements and a bridging segment. A high sensitivity zone is formed between the transmitting antenna and receiving antenna. The antenna element pairs are spaced to create an area of reduced sensitivity between the high sensitivity zones, and the space is set so that the sensor is insensitive to fluid changes of a predetermined volume.

Abstract: An apparatus for measuring skin moisture content in a user's skin is provided. The apparatus may include a signal supplier to generate an out-of-phase signal from a voltage signal obtained from the user's skin and an in-phase signal from the voltage signal, a susceptance measurement unit to measure the susceptance of the voltage signal by synchronizing the voltage signal and the out-of-phase signal received from the signal supplier, a conductance measurement unit to measure the conductance of the voltage signal by synchronizing the voltage signal and the in-phase signal, and an output unit to output sweat gland activity information of the user based on the measured conductance and skin moisture content information of the user based on the measured susceptance.

Abstract: An electronic device includes an upper layer made of a non-conductive material; a lower layer made of a non-conductive material, wherein at least one of the upper layer and the lower layer is made of a resilient material having a sufficient elasticity such that it will return to an original shape after being deformed, wherein the upper layer comprises an upper conductor and the lower layer comprises a lower conductor and a space is provided between the upper conductor and the lower conductor such that the upper conductor and the lower conductor are not in contact until a force is applied to deform at least one of the upper layer and the lower layer. A sensor device for human body testing connected with the lower conductor, or the lower conductor is configured to function as part of a sensor device for human body testing.

Abstract: A physiological signal detection system and device capable of showing emotions and an emotional display method are provided. The system includes: a display unit; a storage unit, for storing a plurality of conditions of emotional index; a physiological signal detection unit, for acquiring at least one physiological signal; a physiological signal recognition unit, for recognizing and filtering the at least one physiological signal; an emotional index operation unit, for generating a value of emotional index according to the at least one physiological signal; and a processing unit, for comparing the conditions of emotional index according to the value of emotional index to generate a comparison result and displaying a display signal corresponding to the value of emotional index on the display unit according to the comparison result.

Abstract: The methods of this invention relate to means for measuring skin hydration. The methods of this invention utilize at least two wavelengths filtered by at least two polarizers to create digital images of skin treated with personal care products. The methods are useful for demonstrating the efficacy of skin care products intended to increase skin hydration and/or protect the skin from dehydration, even when such dehydration is not apparent to the naked eye.

Abstract: A hydration and composition measurement device and technique that in one embodiment includes a microcontroller; a phase lock loop frequency synthesizer controlled by the microcontroller to generate radio frequencies; a cavity for use in resonating at a set of frequencies; a radio frequency power detector for measuring perturbed cavity resonance; and an analyzer. The hydration and composition measurement device may further include a circulator, which receives frequencies from the phase lock loop frequency synthesizer, and an antenna connected to the circulator and cavity. The cavity may be defined by a metallic material or members, and the cavity includes a hole configured to provide access of tissue to be tested to the cavity.

Abstract: Among others, the present invention provides an absorbent textile composite material which comprises a flexible carrier layer and an active layer connected with the carrier layer, wherein the active layer comprises a nanofiber nonwoven optionally filled with a superabsorbent.

Abstract: Disclosed is a method for portably measuring calories, the method including determining if an electric field is formed through an Inter-Digital Capacitor (IDC) sensor in contact with skin; extracting an amount of sweat generated from the skin using the formed electric field; and measuring the calories using the extracted resultant value.

Abstract: Apparatus for timed dispensing of animal care substances to animals includes an electronic dispensing controller, and a dispenser operated by the electronic dispensing controller for dispensing an animal care substance to an animal at times determined by the electronic dispensing controller.

Abstract: An information processing apparatus includes: reproduction means for reproducing 3D content; and detection means for detecting a biological signal associated with a viewer who is viewing the 3D content, wherein the reproduction means attenuates the 3D effect of the 3D content when the viewer's biological signal produced when the 3D content is being reproduced exceeds a threshold value.

Abstract: Among other things, at least two different independent providers of body composition management services are enabled to have online access through respective graphical user interfaces to body composition information and plans that are associated with respective clients of the providers and that are stored on the server. The graphical user interfaces are different for different independent providers. At least some of the information and plans associated with the clients of the different independent providers are stored in a common format in a common database maintained by the server.

Abstract: An apparatus for measuring skin moisture content, the apparatus including: an electrode unit comprising a reference (R) electrode, a current (C) electrode, and a measuring (M) electrode; an operational amplifier including an inverting input terminal that is supplied to a first voltage and connects with the R electrode, and an output terminal that connects with the C electrode; a switch controlling a connection between the output terminal and the C electrode; and a comparison control unit comparing the first voltage with a voltage at the output terminal, and controlling the switch to connect the output terminal and the C electrode when the voltage at the output terminal is less than or equal to a value that is acquired by multiplying the first voltage and a predetermined constant.

Abstract: A device for increasing, monitoring, and measuring perspiration water and solid loss at reduced ambient pressure, comprising a sealed chamber capable of maintaining less than atmospheric pressure for an extended period of time and a gasket-sealed door accessing the chamber. The chamber provides a controlled hypobaric environment for treatment of various medical conditions. Internal controls of ambient pressure inside, temperature, humidity, oxygen, CO2 and other environmental conditions within the chamber are included, as well as a mechanism for recovering perspiration water loss from an occupant of the chamber. Methods for determining the perspiration volume of water and solid loss experienced by an occupant in the chamber are also disclosed including a computer program for determining quantity of sweat produced by the occupant of the chamber on a continuous basis. An algorithm allowing for continuous calculations of sweat loss and fluid replacement requirements of the occupant of the chamber is disclosed.

Abstract: The present invention relates to medicine, in particular, to the methods of measuring a thermal effect and a local metabolism rate of a live tissue, a water content in the intercellular substance as well as a concentration of biochemical blood components, in particular, blood glucose and pressure in the cardiovascular system.

Abstract: A device for increasing, monitoring, and measuring perspiration water and solid loss at reduced ambient pressure, comprising a sealed chamber capable of maintaining less than atmospheric pressure for an extended period of time and a gasket-sealed door accessing the chamber. The chamber provides a controlled hypobaric environment for treatment of various medical conditions. Internal controls of ambient pressure inside, temperature, humidity, oxygen, CO2 and other environmental conditions within the chamber are included, as well as a mechanism for recovering perspiration water loss from an occupant of the chamber. Methods for determining the perspiration volume of water and solid loss experienced by an occupant in the chamber are also disclosed including a computer program for determining quantity of sweat produced by the occupant of the chamber on a continuous basis. An algorithm allowing for continuous calculations of sweat loss and fluid replacement requirements of the occupant of the chamber is disclosed.

Abstract: The invention relates to a device and method that provide an individualized guideline for fluid replacement during normal activity or inactivity. Preferred embodiments calculate the user's fluid loss using the equation: {[(% humidity2?1600)*time]/J}+[(temp° F.*total caloric expenditure)/K], wherein when time units are in percent of an hour, J is a value selected from 1250-1290 and K is a value selected from 1610-1650. Preferred embodiments of the claimed device measure loss of fluid through the use of a pedometer and include a housing having a keyboard and a display screen, an ambient temperature sensor, an ambient humidity sensor, a step counting apparatus, a timing apparatus and a microprocessor. A fluid replacement value is communicated via a numerical display, graphic display, or both, on the display screen.

Abstract: The invention relates to a device and method that provide an individualized guideline for fluid replacement during normal activity or inactivity. Preferred embodiments calculate the user's fluid loss using the equation: {[(% humidity2?1600)*time]/J}+[(temp ° F.*total caloric expenditure)/K], wherein when time units are in percent of an hour, J is a value selected from 1250-1290 and K is a value selected from 1610-1650. Preferred embodiments of the claimed device measure loss of fluid through the use of a pedometer and include a housing having a keyboard and a display screen, an ambient temperature sensor, an ambient humidity sensor, a step counting apparatus, a timing apparatus and a microprocessor. A fluid replacement value is communicated via a numerical display, graphic display, or both, on the display screen.

Abstract: Described are devices and systems for monitoring a content of perspiration. The device comprises a memory storing an index of values corresponding to amounts of a content in perspiration, a detection arrangement detecting the content in the perspiration, a processing unit determining an amount of the content in the perspiration, and a feedback arrangement providing feedback data indicative of a value corresponding to the determined amount.

Abstract: A process and a device are provided for monitoring the status of the body fluids of a person. The device includes a piece of clothing with ventilating ducts, a first temperature sensor (6) and a first moisture sensor (11) for measuring the inlet flow (7) into the piece of clothing and a second temperature sensor (17) and a second moisture sensor (12) for measuring the outlet flow (10) from the piece of clothing. A pressure sensor (13) is provided sensing pressure in the inlet flow. A fan (5) or a compressed-air source is provided for transporting the cooling air into the piece of clothing. A measuring and analyzing unit (13) is connected to the sensors and the fan (5) or the compressed-air source.

Abstract: An apparatus enabling a person to evaluate the hydration of a region of the skin or the mucous membranes. The apparatus includes a sensor including an array of non-optical detection cells and processor apparatus arranged to deliver at least one piece of information relating to the hydration of the region on the basis of signals coming from the sensor. A method for evaluation of hydration is also provided. The apparatus and method can also be used for evaluating, e.g., aging or the effectiveness of a treatment regimen.

Abstract: A fibre or fabric comprising silicon for use as a medical fibre or fabric. The silicon present can be biocompatible, bioactive or resorbable material and may also be able to act as an electrical conductor. In addition, porous silicon may be used as a slow release means for example for drugs or fragrances, or as a collector for example for sweat. Novel fibres, fabrics and methods of preparation of these are also described and claimed.

Abstract: A method for measuring the rate of transepidermal water loss TEWL using a device for measuring TEWL which comprises: (a) a measurement chamber with a single opening at one end, which opening is adapted to be placed against a test surface of skin; (b) means to measure the density of water vapour within the measurement chamber; and (c) an air agitating means positioned within the measurement chamber; which method comprises: (i) purging the measurement chamber of the device; (ii) placing the open end of the measurement chamber against a test surface of skin; (iii) measuring the rate of change of the density of water vapour within the measurement chamber; and (iv) operating the agitating means whilst measuring changes of the density of water vapour within the measurement chamber to near uniformly mix water vapour from the test surface and air trapped in the measurement chamber.

Abstract: Body function measuring apparatus which provides: (1) an indication of the body function being measured, and (2) a loose probe condition by determining that the difference between the rate of change of a first body function signal, developed by a first sensor in the probe, and the rate of change of a second body function signal, developed by a second sensor in the probe, exceeds a predetermined threshold.