Determining Rate Of Fluid Loss From Body Surface Patents (Class 600/307)
  • Patent number: 9211080
    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.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: December 15, 2015
    Assignee: IMPETO MEDICAL
    Inventor: Philippe Brunswick
  • Patent number: 9058646
    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.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: June 16, 2015
    Assignee: LIFE TECHNOLOGIES CORPORATION
    Inventors: Michael Harrold, Lori Hennessy, Jason Yingjie Liu, Chang Zhong
  • Patent number: 9052398
    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.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: June 9, 2015
    Assignee: SMITHS HEIMANN GmbH
    Inventor: Uwe Siedenburg
  • Publication number: 20150141775
    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.
    Type: Application
    Filed: May 29, 2013
    Publication date: May 21, 2015
    Inventors: Filippo Macaluso, Kathy Helen Myburgh
  • Publication number: 20150112164
    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.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Inventors: Jason C. Heikenfeld, Zachary Cole Sonner
  • Publication number: 20150112165
    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.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Inventor: Jason C. Heikenfeld
  • Publication number: 20150087925
    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.
    Type: Application
    Filed: May 20, 2014
    Publication date: March 26, 2015
    Inventors: Christopher Mark Pedley, Ben McCarthy, Adrian Ward, Andrew R. Baker
  • Patent number: 8961415
    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.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: February 24, 2015
    Assignee: Valencell, Inc.
    Inventors: Steven Francis LeBoeuf, Jesse Berkley Tucker, Michael Edward Aumer
  • Publication number: 20150051454
    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.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 19, 2015
    Applicant: IMPETO MEDICAL
    Inventors: Philippe Brunswick, Kamel Khalfallah, Jean Henry Calvet
  • Publication number: 20140336478
    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.
    Type: Application
    Filed: July 28, 2014
    Publication date: November 13, 2014
    Inventor: Yosef SEGMAN
  • Publication number: 20140330096
    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.
    Type: Application
    Filed: November 12, 2012
    Publication date: November 6, 2014
    Applicant: IMPETO MEDICAL
    Inventor: Philippe Brunswick
  • Publication number: 20140330093
    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.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 6, 2014
    Inventor: Victor M. Pedro
  • Publication number: 20140275862
    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.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: William R. Kennedy
  • Publication number: 20140275838
    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.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: Flint Hills Scientific, L.L.C.
    Inventor: Ivan Osorio
  • Publication number: 20140135592
    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.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 15, 2014
    Applicant: dacadoo ag
    Inventors: Peter Ohnemus, Jesper Ohnemus, Andre Naef, David Leason
  • Publication number: 20140135590
    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.
    Type: Application
    Filed: September 20, 2013
    Publication date: May 15, 2014
    Inventor: Victor M. Pedro
  • Patent number: 8663108
    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.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: March 4, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Barbara L. O'Kane
  • Publication number: 20130245388
    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.
    Type: Application
    Filed: September 4, 2012
    Publication date: September 19, 2013
    Inventors: Conor Rafferty, Jeffrey D. Carbeck, Alexander Dickson, Kevin Dowling, Yung-Yu Hsu, Isaiah Kacyvenski, Benjamin Schlatka, Henry Wei
  • Patent number: 8532737
    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.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: September 10, 2013
    Inventor: Miguel Angel Cervantes
  • Publication number: 20130197319
    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.
    Type: Application
    Filed: January 28, 2013
    Publication date: August 1, 2013
    Applicant: THE UNIVERSITY OF AKRON
    Inventor: THE UNIVERSITY OF AKRON
  • Patent number: 8487772
    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.
    Type: Grant
    Filed: December 12, 2009
    Date of Patent: July 16, 2013
    Inventor: Brian William Higgins
  • Patent number: 8480578
    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.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: July 9, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo Young Jang, Kun Soo Shin, Hong Sig Kim
  • Patent number: 8306599
    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.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 6, 2012
    Assignee: Dräger Safety AG & Co. KGaA
    Inventor: Marcus Eger
  • Patent number: 8295920
    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.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: October 23, 2012
    Assignee: Medrad, Inc.
    Inventors: Chad E. Bouton, Felicia R. Ruggeri, R. Reade Harpham, Jeffrey R. Held
  • Patent number: 8273021
    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.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: September 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo Young Jang, Hong Sig Kim, Jeong Je Park, Sang Ryong Kim, Kun Soo Shin
  • Publication number: 20120238845
    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.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 20, 2012
    Inventor: Chang-Ming Yang
  • Publication number: 20120143022
    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.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 7, 2012
    Inventors: Kuan-Rong LEE, Yau-Hwang Kuo, Ying-Hsu Chen
  • Patent number: 8182425
    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.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: May 22, 2012
    Assignee: Johnson & Johnson Consumer Companies, Inc.
    Inventors: Georgios N. Stamatas, Michael Cobb, Christiane Bertin
  • Patent number: 8128561
    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.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: March 6, 2012
    Assignee: Intelligent Automation, Inc.
    Inventors: Arvind Bhat, Shan Chiang, Eric van Doorn, Pencheng Lv
  • Publication number: 20110172507
    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.
    Type: Application
    Filed: February 22, 2011
    Publication date: July 14, 2011
    Applicant: SNS Nano Fiber Technology, LLC
    Inventors: Jurgen Lademann, Laura M. Frazier, Woraphon Kataphinan
  • Publication number: 20110172506
    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.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 14, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: SANG-HUN LEE
  • Publication number: 20110139088
    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.
    Type: Application
    Filed: February 21, 2011
    Publication date: June 16, 2011
    Inventor: Tal Gordon
  • Publication number: 20110028805
    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.
    Type: Application
    Filed: July 16, 2010
    Publication date: February 3, 2011
    Applicant: Sony Corporation
    Inventor: Takahiro YAMAZAKI
  • Patent number: 7788042
    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.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: August 31, 2010
    Inventors: John Thomas Barnett, Michael R. D'Angelo
  • Patent number: 7753846
    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.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: July 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong Je Park, Hong Sig Kim, Woo Young Jang, Jae Chan Park
  • Publication number: 20100018525
    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.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 28, 2010
    Inventor: Sherwin Uda Miller
  • Publication number: 20090209828
    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.
    Type: Application
    Filed: March 9, 2005
    Publication date: August 20, 2009
    Inventor: Ramil Faritovich Musin
  • Patent number: 7575549
    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.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: August 18, 2009
    Inventor: Sherwin Uda Miller
  • Publication number: 20090063090
    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.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 5, 2009
    Inventor: Blake J. Surina
  • Patent number: 7493232
    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.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: February 17, 2009
    Inventor: Blake J. Surina
  • Publication number: 20080306362
    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.
    Type: Application
    Filed: June 5, 2007
    Publication date: December 11, 2008
    Inventor: Owen Davis
  • Publication number: 20080269587
    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.
    Type: Application
    Filed: February 25, 2008
    Publication date: October 30, 2008
    Applicant: Drager Safety AG & Co. KGaA
    Inventor: Marcus EGER
  • Patent number: 7402135
    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.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: July 22, 2008
    Assignee: L'Oreal
    Inventors: Jean-Luc Leveque, Bernard Querleux, Franck Giron
  • Publication number: 20080138602
    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.
    Type: Application
    Filed: October 11, 2007
    Publication date: June 12, 2008
    Applicant: PSIMEDICA LIMITED
    Inventors: Leigh Canham, Roger Aston
  • Publication number: 20080125631
    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.
    Type: Application
    Filed: January 24, 2008
    Publication date: May 29, 2008
    Inventor: Robert Erich Imhof
  • Publication number: 20080045816
    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.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 21, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Woo Young Jang, Hong Sig Kim, Jeong Je Park, Sang Ryong Kim, Kun Soo Shin
  • Patent number: 7134998
    Abstract: A tear secretion quantity examination system for evaluating simply and non-invasively the tear secretion quantity has: a moisture evaporation quantity detection unit for detecting the moisture evaporation quantity from a subject's eye with a humidity sensor; and an operation unit for computing evaluation parameters of the tear secretion quantity based on a detection signal of the moisture evaporation quantity detection unit. The operation means approximates an attenuation portion of saw-tooth responses appearing for each blink in a tear evaporation profile in which the detection value obtained with the humidity sensor is plotted against the time.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: November 14, 2006
    Assignee: Kao Corporation
    Inventors: Koji Endo, Kazuo Tsubota, Eiki Goto
  • Patent number: 7087019
    Abstract: An apparatus for testing skin moisture including a casing, a fixed base at the front end of the casing, at least one through hole on the fixed base, a hollow cylindrical metal electrode with a closed end passing through the through hole, and an electrically conductive elastic member in the electrode. The elastic member pressing between the electrode on a first end and is fixed to the casing at a second end. The casing has a correction resistor coupled in parallel with the elastic member. The correction resistor is coupled to a micro alternate current generator, and an alternate current resistance measuring circuit is coupled to a CPU single-chip microprocessor. A measured value of resistance is compared with a predetermined value stored in a memory by a CPU single-chip microprocessor, the result of the comparison is displayed by a display device.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: August 8, 2006
    Inventor: Han-Chin Kao
  • Patent number: 6966877
    Abstract: A method for measuring the degree of evaporation of water through the skin includes placing a measurement chamber on the surface of the skin. The measurement chamber is a chamber which is open only at one side, and when placed on the skin it will become a totally closed chamber. During the measurement the vapor pressure is determined only in one point of the chamber. The degree of evaporation is determined by vapor pressure gradient in relation to time. An apparatus includes the measurement chamber open only at one side, and when placed on the skin it will become a totally closed chamber. Furthermore, there is a humidity sensor in the measurement chamber for measuring the vapor pressure in one point of the measurement chamber.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: November 22, 2005
    Assignee: Delfin Technologies Ltd.
    Inventor: Aulis Tapani Lahtinen
  • Patent number: RE40470
    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.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: August 26, 2008
    Assignee: Draeger Medical Systems, Inc.
    Inventors: Joseph F. Fitzpatrick, Anthony C. Romano, John H. Richards, Ronald S. Kolarovic