Electrolyte Containing Patents (Class 600/397)
  • Patent number: 10307074
    Abstract: A probe for use in performing impedance measurements on a subject. The probe includes a housing for being held by an operator in use, a contact surface for contacting the subject and a connector for connecting the contact surface to a measuring device.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: June 4, 2019
    Assignee: IMPEDIMED LIMITED
    Inventor: Leigh Cordwin Ward
  • Patent number: 10022468
    Abstract: Improved skin-adhesive compositions for bonding a substrate, such as an absorbent article, to skin are disclosed. More particularly, the skin-adhesive composition has an improved, yet gentle, adhesion to the skin of a user, while maintaining strong, effective bonding to various inanimate, non-skin substrates. In one embodiment, the skin-adhesive composition can provide one or more skin benefit agents to the user. The skin-adhesive composition may be applied to an absorbent article, such as a panty-liner, sanitary napkin, or an incontinence article, for directly adhering the article to the skin of a user.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: July 17, 2018
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ali Yahiaoui, Candace Dyan Krautkramer, Margaret Gwyn Latimer, Jack Nelson Lindon, Russell F. Ross, Melissa Jean Dennis, Garry Roland Woltman
  • Patent number: 9820670
    Abstract: An electrode carrier system includes one or more electrode assemblies having an electrode body. One or more tubular members extend from the electrode body and define a lumen terminating in a distal opening. The electrode assemblies carry a reservoir containing a conductive fluid or gel. The reservoir is in fluid communication with the lumens in the tubular members, and the electrode assemblies are typically supported on a backing which may optionally be configured as a headband. Systems are for tracking patient movement may be used in combination with the electrode carrier system.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 21, 2017
    Assignee: Ceribell, Inc.
    Inventors: Josef Parvizi, Xingjuan Chao, Bradley G. Bachelder, Raymond Woo, Mathew A. Herron, Vahid Saadat, Alexander M. Grant, Jianchum Yi
  • Patent number: 9433459
    Abstract: Systems and methods of electrical stimulation for intra and extra vascular treatment of a subject are provided. The device includes a first electrode, a second electrode, and a controller. The controller is configured to apply an electrical current between the first and second electrodes. The electrical current follows a path between the first and second electrodes and through a portion of the subject that includes a blockage.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: September 6, 2016
    Assignee: ZOLL Medical Corporation
    Inventors: Mark Totman, Sheldon S. White, Michael R. Dupelle, Christopher Desmarais, Paul F. Prew
  • Patent number: 9354326
    Abstract: A radiographic imaging detector has photoimaging pixels disposed in an array, control electronics for controlling operation of the array to capture radiographic images, and a voltage source for powering the array of photoimaging pixels and the control electronics. A housing with multiple parts encloses at least the array and the control electronics and provides a seating for the voltage source. A first part has a first mating surface, a second part has a second mating surface. The first and second mating surfaces are disposed adjacent to each other and define a gap therebetween with a hydrophobic material deposited along at least one of the first and second mating surfaces.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: May 31, 2016
    Assignee: Carestream Health, Inc.
    Inventors: Scott T. MacLaughlin, Robert J. Langley
  • Publication number: 20150065838
    Abstract: A system for electrically stimulating and/or detecting bioelectrical signals of a user comprising: an array of permeable bodies configured to absorb a solution that facilitates electrical coupling with a body region of the user; a housing defining an array of protrusions conforming to the body region and comprising: an array of channels distributed across the array of protrusions, each channel at least partially surrounding a permeable body, configured to deliver the solution to the permeable body, and comprising a barrier that prevents passage of the permeable body past the barrier, and a manifold configured to distribute the solution to the array of channels; and a coupling subsystem comprising a first electrical coupling region in electrical communication with an interior of the manifold, wherein the first electrical coupling region is configured to couple to a second electrical coupling region that couples the first electrical coupling region to the electronics subsystem.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Inventors: Brett Wingeier, Daniel S. Chao, Andrew Chang, Lee Von Kraus, Amol Sarva
  • Patent number: 8831702
    Abstract: Provided is a bio-signal detection electrode including: an electrode section made of a gel including an electrolytic solution; and a support section configured to support the electrode section with respect to an accessory, the electrode section adhering to the support section.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: September 9, 2014
    Assignee: Sony Corporation
    Inventor: Seiji Wada
  • Patent number: 8825128
    Abstract: A sensor for measuring biosignals is provided. The sensor comprises at least one electrode comprising: a substrate comprising a flexible non-conductive material; a conductive layer configured to transfer electrical signals; a gel layer configured to transfer electrical signals; and a barrier layer configured to protect the conductive layer and transfer electrical signals, wherein the barrier layer deposited on the substrate, the gel layer is deposited on the barrier layer so that the gel layer covers only a part of the barrier layer, and the conductive layer is deposited over an area of the barrier layer which is outside of an area of the barrier layer on which the gel layer is deposited.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: September 2, 2014
    Assignee: General Electric Company
    Inventors: Antti Kustaa Antipas Ylostalo, Magnus Johannes Kall, Outi Kristiina Savinen
  • Patent number: 8805469
    Abstract: The present invention relates to a physiological recording electrode, and, more particularly, to an EEG (electroencephalography) recording electrode that can be used without the need for numerous steps in preparing the subject's skin and the electrode itself. The invention further relates to a surface feature or penetrator with a size and shape which that will not bend or break, which limits the depth of application, and/or anchors the electrode or other device during normal application; and a packaging system comprising a well and electrolytic fluid for maintaining a coating of said electrolytic fluid on the surface feature or penetrator.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: August 12, 2014
    Assignee: NeuroWave Systems Inc
    Inventors: Stéphane Bibian, Tatjana Zikov
  • Patent number: 8805470
    Abstract: Apparatus and techniques are provided for interfacing a device with a surface. The apparatus and techniques provide gel encapsulation and isolation mechanisms to extend the shelf-life of the preparation devices, allow for the use of more effective materials, and improve the quality of the contact between a device and an application surface. Particular embodiments of these apparatus and techniques suitable for use in medical contexts are also provided.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: August 12, 2014
    Assignee: Covidien LP
    Inventors: Elizabeth A. Afanasewicz, Robert P. Harhen, Adam J. Young, Rafael M. Cordero
  • Patent number: 8798710
    Abstract: A biopotential electrode for transferring electrical signals with a subject that includes an electrical conductor, a membrane selectively permeable to ionic conduction for presenting a dry surface to the subject, and a conductive medium positioned in communication with a portion of the electrical conductor and a portion of the membrane. The electrical potentials are coupled from the subject across the membrane into the conductive medium and then transferred from the subject to the electrical conductor. In other embodiments, the electrical potentials may be transferred from the external conductor to the subject through the conductive medium across the membrane into the subject. Other embodiments include systems and methods for using the biopotential electrodes.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: August 5, 2014
    Assignee: Cognionics, Inc.
    Inventor: Yu Mike Chi
  • Patent number: 8774895
    Abstract: An electroencephalographic headset includes: a supporter that includes expanding and contracting wires each having expansion and contraction properties and is to be attached to a head of a user by expansion and contraction of each of the expanding and contracting wires; and a plurality of electrodes that are provided to the supporter in defined placement.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 8, 2014
    Assignee: Sony Corporation
    Inventors: Seiji Wada, Takeshi Yamazaki, Natsuki Kimura, Yoshihiro Wakita, Koji Kashima, Tomiji Tanaka, Mitsuhiro Nakamura, Tatsumi Sakaguchi, Haruhiko Soma, Takuro Yamamoto
  • Publication number: 20140187901
    Abstract: An electrode system include a flowable and cohesive surface contact element comprising a hydrophilic polymer swollen with an electrolyte fluid, the contact element having a Q? ratio of at least 5 as defined by the equation Q ? = W W W G wherein WG is the dry weight of the hydrophilic polymer and WW is weight of water in the sample after absorption of the electrolyte fluid comprising water and an electrolyte salt. The surface contact element can consist essentially of the hydrophilic polymer swollen by the electrolyte fluid. Another electrode system includes a contact element including a crosslinked hydrophilic polymer matrix. The contact element has a Q? ratio of at least 5 as defined by the equation Q ? = W W W G . The contact elements can also have a Q? ratio of at least 6, at least 7, at least 10 or even at least 11.
    Type: Application
    Filed: March 4, 2014
    Publication date: July 3, 2014
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: XINYAN CUI, NICOLAS ALEXANDER ALBA, MINGUI SUN
  • Patent number: 8706183
    Abstract: An electrode system include a flowable and cohesive surface contact element comprising a hydrophilic polymer swollen with an electrolyte fluid, the contact element having a Q? ratio of at least 5 as defined by the equation Q ? = W W W G wherein WG is the dry weight of the hydrophilic polymer and WW is weight of water in the sample after absorption of the electrolyte fluid comprising water and an electrolyte salt. The surface contact element can consist essentially of the hydrophilic polymer swollen by the electrolyte fluid. Another electrode system includes a contact element including a crosslinked hydrophilic polymer matrix. The contact element has a Q? ratio of at least 5 as defined by the equation Q ? = W W W G . The contact elements can also have a Q? ratio of at least 6, at least 7, at least 10 or even at least 11.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: April 22, 2014
    Assignee: University of Pittsburgh-Of the Commonwealth System of Higher Education
    Inventors: Xinyan Cui, Nicolas Alexander Alba, Mingui Sun
  • Patent number: 8620401
    Abstract: A biological signal detection electrode includes an electrode element and a plurality of drought-resistant electrolytic solution soaking parts. The electrode element is made of a conductive material and has a surface. The plurality of drought-resistant electrolytic solution soaking parts are placed at predetermined intervals on the surface of the electrode element, are formed to have a thickness that allows contact with a scalp without hair being sandwiched between the electrode element and the scalp, and are soaked in a drought-resistant electrolytic solution including a drought-resistant liquid and a conductive liquid.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: December 31, 2013
    Assignee: Sony Corporation
    Inventor: Shiko Yamashita
  • Patent number: 8548557
    Abstract: The present disclosure provides electrodes that possess hydrogels for contacting skin. In embodiments, an electrode of the present disclosure may include a substrate and a conductive composition on at least a portion of a surface of the substrate, the conductive composition including at least one hydrogel and at least one component capable of providing either a cooling or warming sensation upon contact with tissue of a patient. Methods for forming these hydrogels and electrodes are also provided.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: October 1, 2013
    Assignee: Covidien LP
    Inventors: Erick Garstka, Kathleen Tremblay
  • Patent number: 8419982
    Abstract: Conductive compositions for use with medical electrodes are provided. The conductive compositions utilize a surfactant capable of both reducing the surface tension of the conductive composition as well as increasing the viscosity of the conductive composition. Methods of preparing these conductive compositions are also provided.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: April 16, 2013
    Assignee: Covidien LP
    Inventors: Warren W. Copp-Howland, David Selvitelli
  • Publication number: 20120245451
    Abstract: Provided is a bio-signal detection electrode including: an electrode section made of a gel including an electrolytic solution; and a support section configured to support the electrode section with respect to an accessory, the electrode section adhering to the support section.
    Type: Application
    Filed: February 22, 2012
    Publication date: September 27, 2012
    Applicant: SONY CORPORATION
    Inventor: Seiji Wada
  • Publication number: 20120209102
    Abstract: A disposable self-powered biomedical sensor comprises a printed wet electrode on a substrate sheet. The wet electrode is provided with an electrolyte element to enhance the electrical contact with a surface to be measured. Moreover, a printed battery encapsulated in a hermetically sealed compartment is provided on the substrate sheet. The disposable self-powered sensor can be stored within an enclosure or a package which provides a proper atmosphere to prevent the drying of the electrolyte and prolong the shelf life of the sensors.
    Type: Application
    Filed: December 16, 2011
    Publication date: August 16, 2012
    Inventors: Antti Kustaa Antipas YLOTALO, Juha Petri VIRTANEN
  • Patent number: 8126530
    Abstract: An electrode including a non-conductive substrate having a top surface and at least one channel extending therethrough, an electrically conductive trace material positioned adjacent a portion of the top surface of the non-conductive substrate and extending through the channel, and adapted for electrically coupling to a power source, and second and third electrically conductive materials that are inert or more corrosion resistant than the trace material. The second material is positioned adjacent to and entirely covering a top surface of the trace material, and the third material is positioned adjacent to and entirely covering a top surface of the second electrically conductive material, and covers a portion of a top surface of the non-conductive substrate surrounding the second electrically conductive material. The electrode further includes a conductive hydrogel positioned adjacent to a portion of a top surface of the third electrically conductive material, but laterally offset from the trace material.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: February 28, 2012
    Assignee: Ethicon, Inc.
    Inventors: Rex O. Bare, Bradley Sargent
  • Patent number: 8017042
    Abstract: Conductive compositions whose electrical properties do not change significantly due when stored open to the atmosphere, methods for preparing the compositions, and medical electrodes that comprise the compositions are disclosed. The compositions are hydrogels that comprise about 33 wt % to about 68 wt % of a humectant or a mixture of humectants; about 1 wt % to about 8 wt % of an electrolyte or mixture of electrolytes; about 6 wt % to about 20 wt % of water; about 18 wt % to about 45 wt % of a copolymer. The copolymer comprises, in polymerized form, about 80 mol % to about 95 mol % of a first monomer, which is a mixture of acrylic acid and a salt thereof, about 5 mol % to 20 mol % of a second monomer, preferably a salt of 2-acrylamido-2-methylpropane sulfonic acid, and, optionally a crosslinking agent. The conductive composition has a pH of about 7.0 or less.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: September 13, 2011
    Assignee: Tyco Healthcare Group LP
    Inventor: Warren W. Copp-Howland
  • Patent number: 7930013
    Abstract: A sensor assembly for the measurement of electrophysiological signals and including a conductive bridge is provided. In one embodiment, the conductive bridge is provided by an expandable member with an absorbent material attached to one end. An aperture extends through the expandable member, forming a cavity well. Addition of a conductive medium to the cavity well allows the conductive bridge to provide a conductive pathway between an electrode and a patient's skin.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: April 19, 2011
    Assignee: Compumedics Limited
    Inventor: Curtis W. Ponton
  • Publication number: 20090270710
    Abstract: The present disclosure provides electrodes that possess components capable of indicating to an end-user when the electrode is in need of replacement.
    Type: Application
    Filed: October 30, 2008
    Publication date: October 29, 2009
    Applicant: Tyco Healthcare Group LP
    Inventors: Warren Copp, Erick Garstka, Christopher Hyatt, Kathleen Tremblay, Peter Meyer, Scott Coggins, Lee Burnes, David Selvitelli
  • Patent number: 7532921
    Abstract: This invention relates to a measuring electrode arrangement (1), in particular for electroimpedance tomography, having at least one measurement object (5) for electric motor contacting of a measurement object (2). It is proposed that a storage space (7) which contains a contact medium (6) for reducing the electric contact resistance between the measuring electrode (5) and the measurement object (2) is located on the side of the measuring electrode (5) facing away from the measurement object (2), said storage space containing a contact medium (6) for reducing the electric contact resistance between the measuring electrode (5) being at least partially permeable for the contact medium (6).
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: May 12, 2009
    Inventor: Ruediger Eichler
  • Patent number: 7424319
    Abstract: An electrode assembly arranged to carry out a bioelectrical interaction with an individual, said electrode assembly comprising a conductive material having a contact surface arranged to be brought into contact with a receiving area of the individual's skin, said conductive material being electrically connectable to a suitable electronic device to enable said interaction, the electrode assembly having an impedance control means arranged to measure and control the impedance of the receiving area of the individual's skin prior to an event of the bioelectrical interaction.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: September 9, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jens Muehlsteff, Harald Reiter, Andras Montvay, Josef Lauter, Olaf Such, Ralf Schmidt, Michael Perkuhn, Fabian Kohler
  • Patent number: 7403807
    Abstract: A medical electrode for conducting an electrical current to or from the skin of a patient. The electrode comprises a thin, flexible metallic conductor, a layer of electrolyte in electrical contact with the conductor and positioned to be in electrical contact with the skin when the electrode is applied to a patient, and an insulating layer overlying the conductor, wherein a peripheral edge of the metallic conductor is sealed with an insulating material so that the peripheral edge of the conductor is substantially out of electrical contact with the electrolyte. This tends to increase the shelf life of the electrode because the more highly worked (e.g., from being die cut during manufacture), and thus higher energy state, peripheral edge is electrically isolated.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: July 22, 2008
    Assignee: ZOLL Medical Corporation
    Inventors: Michael R. Dupelle, Sheldon S. White
  • Publication number: 20070282188
    Abstract: Conductive compositions whose electrical properties do not change significantly due when stored open to the atmosphere, methods for preparing the compositions, and medical electrodes that comprise the compositions are disclosed. The compositions are hydrogels that comprise about 33 wt % to about 68 wt % of a humectant or a mixture of humectants; about 1 wt % to about 8 wt % of an electrolyte or mixture of electrolytes; about 6 wt % to about 20 wt % of water; about 18 wt % to about 45 wt% of a copolymer. The copolymer comprises, in polymerized form, about 80 mol % to about 95 mol % of a first monomer, which is a mixture of acrylic acid and a salt thereof, about 5 mol % to 20 mol % of a second monomer. preferably a salt of 2-acrylamido-2-methylpropane sulfonic acid, and, optionally a crosslinking agent. The conductive composition has a pH of about 7.0 or less.
    Type: Application
    Filed: May 30, 2006
    Publication date: December 6, 2007
    Inventor: Warren W. Copp-Howland
  • Patent number: 7299083
    Abstract: A chadd disposed on a patient's skin generates heat at a substantially constant temperature for an extended period of time (e.g., hours and days) when exposed to air. The chadd becomes porous when heated and produces a porosity in the patient's skin as a result of the heat generation to pass ions through the pores in patient's skin to a layer disposed on the chadd. The layer (e.g., silver or silver chloride) has properties of converting the ions to electrons. The electrons pass to an electrical lead disposed on the layer. The electrical lead passes an electrical signal (produced from the electrons) to a terminal. An amplifier connected to the terminal amplifies the signal without changing the characteristics of the signal and without producing noise.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: November 20, 2007
    Assignee: Signalife, Inc.
    Inventor: Budimir Drakulic
  • Patent number: 7269462
    Abstract: Medical electrodes are provided for use in applications that require long shelf life and/or shelf life at high temperatures. Some electrodes include high temperature adhesives and/or foams and an encapsulated electrolyte.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: September 11, 2007
    Assignee: ZOLL Medical Corporation
    Inventors: Sheldon S. White, Michael R. Dupelle
  • Patent number: 7250056
    Abstract: A mounter (3) integrally provided with a lancing element (47B) and analyzer includes a lancing member (47) provided with the lancing element (47B), a first member (4) including an accommodation portion (40) for holding the lancing member (47), and a second member (5) formed separately from the first member (4) for holding the analyzer (6). The accommodation portion (40) includes an accommodation space (43) communicable with the outside through a first opening (43a) and a second opening (43b). The lancing member (47) is held and hermetically sealed in the accommodation space (43) by closing the first opening (43a) and the second opening (43b) with a first seal member (44a) and a second seal member (44b).
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: July 31, 2007
    Assignee: Arkray, Inc.
    Inventor: Katsumi Hamamoto
  • Patent number: 7099713
    Abstract: Surfactants useful for enhancing the electrical conduction of electrodes attached to the surface of a patient. The surfactants are also useful in transport of materials in and out of the body of a patient (animal or human) and in the measurement of disease states. Typical surfactants particularly useful in the invention are broadly represented by protein/fatty acid based compounds. The protein/fatty acid compounds may be lipopolypeptides. In some embodiments the lipopolypeptides may be acyl peptides. Typical acyl peptides are Lamepon S™, MayTein C™ and MayTein CT™.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: August 29, 2006
    Assignee: Battelle Memorial Institute
    Inventors: James D. Browning, Vincent McGinniss, Steven M. Risser, Dale L. Robinson, Robert E. Russell, III, Robert R. Boyd, Matthew S. Fleming
  • Patent number: 7076282
    Abstract: Bioadhesive Compositions which comprise a hydrophobic polymer wherein the concentration of the polymer at the surface of the adhesive is greater than its concentration in the bulk of the adhesive are described; and biomedical electrodes, fixation products and wound dressings containing them.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: July 11, 2006
    Assignee: First Water Limited
    Inventors: Hugh Semple Munro, Mohammed Yasin
  • Patent number: 6842636
    Abstract: An electrode providing electrical contact with a patient's skin includes a conductive member adapted for connection to an external electrical apparatus and a non-liquid water containing film for electrically interfacing to said patient's skin, the non-liquid film being electrically and mechanically connected to said conductive member. The non-liquid water containing film includes an electrically conductive organic polymer plasticized with a polyhydric alcohol with said organic polymer being derived from a monomeric mixture comprising from about 2 to 30 pph acrylic acid, 2 to 30 pph of a glycolvinylether and 0.01 to 1.5 pph of a crosslinking agent. Preferably the polyhydric alcohol is glycerol.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: January 11, 2005
    Assignee: Axelgaard Manufacturing Co., Ltd.
    Inventors: James J. Perrault, Solomon E. Shentuke, Steve Heard
  • Patent number: 6792301
    Abstract: Bioadhesive Compositions which comprise a hydrophobic polymer wherein the concentration of the polymer at the surface of the adhesive is greater than its concentration in the bulk of the adhesive are described; and biomedical electrodes, fixation products and wound dressings containing them.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: September 14, 2004
    Assignee: First Water Limited
    Inventors: Hugh Semple Munro, Mohammed Yasin
  • Patent number: 6757556
    Abstract: The present invention involves an electrode sensor attachable to a substrate for sensing electrical activity of a patient. The electrode sensor comprises an elongated conductive body having first and second ends, wherein the first end is adapted to contact the patient for sensing electrical activity of the patient. The second end is configured to conductively attach to the substrate. The elongated conductive body is greater than about 2 millimeters in length and is configured to extend from the substrate.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: June 29, 2004
    Assignee: Ineedmd. com
    Inventors: Govindan Gopinathan, Arthur R. Tilford
  • Patent number: 6687524
    Abstract: An ECT, EEG, EMG, ENG or impedance pneumography hospital electrode is designed for use on neonates in high humidity environments, such as in a high humidity incubator. The electrode includes a silver-silver/chloride sensor; a signal transmitting lead connected to the sensor; and an electrically conductive, self-adhesive gel which electrically connects the sensor to the patient's skin. The conductive, self-adhesive gel is formed from a hydrogel which is hydrophilic in nature. In order to stabilize the adhesiveness of the gel in the high humidity environment, the gel is provided with an adjunct non-hydrophilic adhesive member which provides improved adhesion to the skin while maintaining contact between the conductive gel and the patient's skin. The use of the adjunct adhesive member enables the electrode assembly to be used in the high humidity environment for extended periods of time without becoming detached from the patient's skin.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: February 3, 2004
    Assignee: CAS Medical Systems, INC
    Inventor: Christian A. Svejk
  • Patent number: 6654626
    Abstract: An array of electrodes is constructed to allow the user to easily adjust to the correct size of the patient's head. The array is self-adhesive, pre-gelled and disposable. The array fits easily over the temple and forehead areas where EEG signals can be acquired by specially designed monitors for purposes of monitoring a number of bodily phenomena, including but not limited to, depth of anesthesia, and/or ischemia, and burst suppression. The array is connected to the monitor via a tab connector that is integral to the disposable device. The tab connector is insertible into a reusable connector that is part of a monitoring system.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: November 25, 2003
    Assignee: Aspect Medical Systems, Inc.
    Inventors: Philip H. Devlin, Rafael M. Cordero, Nassib G. Chamoun, John R. Shambroom, Charles Fendrock, Terrie L. McDaniel
  • Patent number: 6643532
    Abstract: A medical electrode includes a first conductive polymerizable gel layer for electrically coupling the electrode to a body and a flexible porous electrical conductor disposed on the first gel layer. A second conductive polymerizable gel layer disposed on the flexible porous electrical conductor and polymerized with the first layer through the porous conductor. An electrical connector disposed in connect with the second gel layer enables the electrical connection to an outside power source, or monitoring device, and an insulative backing is adhered to the second gel layer to prevent inadvertent contact therewith.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: November 4, 2003
    Assignee: Axelgaard Manufacturing Co. Ltd.
    Inventor: Jens Axelgaard
  • Patent number: 6640122
    Abstract: The EEG electrode and EEG electrode locator assembly may be used in combination with an EEG electrode locator headgear including a plurality of locator straps connectable to one or more of the EEG electrode locators that form an electrode locator assembly with the EEG electrode, for accurately positioning one or more of the EEG electrodes relative to the user's scalp, and for biasing the plurality of electrodes toward the user's scalp. The EEG electrode is adapted to be received in and cooperate with an EEG electrode locator ring, to form the electrode locator assembly. The EEG electrode includes a dispenser assembly adapted to dispense an electrically conductive gel onto the user's scalp to prepare the user's scalp.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: October 28, 2003
    Assignee: Advanced Brain Monitoring, Inc.
    Inventors: Samir Manoli, Daniel J. Levendowski, Eugene F. Davis, Christine Berka
  • Patent number: 6640118
    Abstract: There is provided a skin engageable, electrode assembly for making selectable contact with the skin. The electrode facilitates the selective collection of electrical data and/or provides selective electrical stimulation. The electrode includes a conductive element, preferably of fabric construction, a semi-fluid conductive layer surrounding the conductive element, a cover preferably made of a perforated fabric or other porous material cell, and one or more temperature sensitive wires embedded in the cover that constrict when heated to cause the semi-liquid conductive layer to permeate the cover via the pores to engage the skin for electrical communication. When the wires cool, they loosen causing the semi-fluid conductive layer to be reabsorbed within the cover to prevent electrical communication with the skin.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: October 28, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Clive R. Van Heerden, George Marmaropoulos
  • Publication number: 20030163035
    Abstract: There is provided a skin engageable, electrode assembly for making selectable contact with the skin. The electrode facilitates the selective collection of electrical data and/or provides selective electrical stimulation. The electrode includes a conductive element, preferably of fabric construction, a semi-fluid conductive layer surrounding the conductive element, a cover preferably made of a perforated fabric or other porous material cell, and one or more temperature sensitive wires embedded in the cover that constrict when heated to cause the semi-liquid conductive layer to permeate the cover via the pores to engage the skin for electrical communication. When the wires cool, they loosen causing the semi-fluid conductive layer to be reabsorbed within the cover to prevent electrical communication with the skin.
    Type: Application
    Filed: February 25, 2002
    Publication date: August 28, 2003
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Clive R. Van Heerden, George Marmaropoulos
  • Publication number: 20030153822
    Abstract: A method is disclosed which provides for a reduced corrosion of an electrically conductive metallic layer during storage of an electrode comprising said electrically conductive metallic layer in intimate contact with an electrically conductive gel, said electrode being adapted for establishing electrical contact with the skin, wherein the access to oxygen is reduced or eliminated.
    Type: Application
    Filed: February 13, 2003
    Publication date: August 14, 2003
    Inventors: Brian Nielsen, Steen Thomsen
  • Patent number: 6564079
    Abstract: A system for detecting and marking the positions of peripheral nerves is disclosed. A reusable electrode array comprising a plurality of electrodes is combined with a disposable skin attachment system comprising hydrogel islands. In use, the electrode array is connected to a peripheral nerve detection instrument. The disposable skin attachment system is then attached to an electrode sensor region. The skin attachment system is then adhered to an area of skin, detection is carried out, and then the electrode array is peeled back from the skin, leaving a skin marking guide in place. The skin marking guide is then used to mark areas of interest to a therapist.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: May 13, 2003
    Assignee: CKM Diagnostics, Inc.
    Inventors: Philip C. Cory, Joan M. Cory
  • Patent number: 6510333
    Abstract: A sensor for biopotential measurements is designed to detect low voltage electrical signals on a subject's skin surface. A plurality of soft elastomeric bristles are arranged about the surface of the skin. Various bristles contain a wick, made of polyolefin, polyester or nylon, extending along its center axis with one end protruding from the bristle and another end in contact with a fluid reservoir. The wick is saturated with an electrically conductive liquid, such as a salt solution. The solution may contain a surfactant. The rheological properties of the electrically conductive liquid are optimized for predictable flow through the wick onto the skin surface. An electrode is positioned in the vicinity of the wick and the reservoir. Alternatively, a sensor comprises a plurality of hollow, soft elastomeric bristles filled with a hydrogel. An electrically conductive cap provides the electrical contact between the hydrogel and the electrical circuit.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: January 21, 2003
    Inventors: Mark J. Licata, James Mitchell
  • Publication number: 20020177767
    Abstract: A sensor for biopotential measurements is designed to detect low voltage electrical signals on a subject's skin surface. A plurality of soft elastomeric bristles are arranged about the surface of the skin. Various bristles contain a wick, made of polyolefin, polyester or nylon, extending along its center axis with one end protruding from the bristle and another end in contact with a fluid reservoir. The wick is saturated with an electrically conductive liquid, such as a salt solution. The solution may contain a surfactant. The rheological properties of the electrically conductive liquid are optimized for predictable flow through the wick onto the skin surface. An electrode is positioned in the vicinity of the wick and the reservoir. Alternatively, a sensor comprises a plurality of hollow, soft elastomeric bristles filled with a hydrogel. An electrically conductive cap provides the electrical contact between the hydrogel and the electrical circuit.
    Type: Application
    Filed: April 12, 2002
    Publication date: November 28, 2002
    Inventors: Steve Burton, Mark J. Licata, James Mitchell
  • Publication number: 20020173710
    Abstract: A sensor for biopotential measurements is designed to detect low voltage electrical signals on a subject's skin surface. A plurality of soft elastomeric bristles are arranged about the surface of the skin. Various bristles contain a wick, made of polyolefin, polyester or nylon, extending along its center axis with one end protruding from the bristle and another end in contact with a fluid reservoir. The wick is saturated with an electrically conductive liquid, such as a salt solution. The solution may contain a surfactant. The surface properties of the electrically conductive liquid and wick are optimized for predictable flow through the wick onto the skin surface. An electrode is positioned in the vicinity of the wick and the reservoir.
    Type: Application
    Filed: May 18, 2001
    Publication date: November 21, 2002
    Inventor: Mark J. Licata
  • Publication number: 20020156357
    Abstract: A medical electrode includes a first conductive polymerizable gel layer for electrically coupling the electrode to a body and a flexible porous electrical conductor disposed on the first gel layer. A second conductive polymerizable gel layer disposed on the flexible porous electrical conductor and polymerized with the first layer through the porous conductor. An electrical connector disposed in connect with the second gel layer enables the electrical connection to an outside power source, or monitoring device, and an insulative backing is adhered to the second gel layer to prevent inadvertent contact therewith.
    Type: Application
    Filed: June 14, 2002
    Publication date: October 24, 2002
    Inventor: Jens Axelgaard
  • Patent number: 6453205
    Abstract: A medical electrode assembly includes a conductive electrode, an electrically insulative backing layer on one side of the electrode, an electrically conductive coupling agent in contact with another side of the electrode, an attachment mechanism rigidly connected to a center portion of the electrode, and an electrical conductor connected to the attachment mechanism. The combination of the electrode with the attachment mechanism is constructed with substantial circumferential uniformity such that electrical current provided to the center portion of the electrode through the low-profile attachment mechanism is distributed radially through the electrode in a substantially circumferentially uniform distribution. The electrode is constructed to perform defibrillation or cardioversion. The attachment mechanism is substantially flat and has a low profile. The electrical conductor has a substantially flat, strap-like configuration.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: September 17, 2002
    Inventors: Michael R. Dupelle, Sheldon S. White
  • Publication number: 20020117408
    Abstract: A package for increasing shelf life of electrodes packaged therein. A first package within which one or more gel-containing electrode pads are sealed. In addition, at least one moisture source is sealed within the package.
    Type: Application
    Filed: February 27, 2001
    Publication date: August 29, 2002
    Inventors: Thomas A. Solosko, Anthony G. Picardo, Steven Thomas Mydynski, Kim J. Hansen, Seiya Ohta
  • Patent number: 6418333
    Abstract: A medical electrode includes a first conductive polymerizable gel layer for electrically coupling the electrode to a body and a flexible porous electrical conductor disposed on the first gel layer. A second conductive polymerizable gel layer disposed on the flexible porous electrical conductor and polymerized with the first layer through the porous conductor. An electrical connector disposed in connect with the second gel layer enables the electrical connection to an outside power source, or monitoring device, and an insulative backing is adhered to the second gel layer to prevent inadvertent contact therewith.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: July 9, 2002
    Assignee: Axelgaard Manufacturing Co., Ltd.
    Inventor: Jens Axelgaard