Head-supported Patents (Class 607/139)
  • Patent number: 8204602
    Abstract: Techniques are disclosed for recharging an Implantable Medical Device (IMD). In one embodiment, a first external coil is positioned on one side of a patient's body, such as on a front side of the torso in proximity to the IMD. A second external coil is positioned on an opposite side of the patient's body, such as on the back of the torso. A recharging device generates a current in each of the coils, inductively coupling the first and the second coils to the secondary recharge coil of the IMD. According to another aspect, each of the two external coils may wrap around a portion of the patient's body, such as the torso or head, and are positioned such that the IMD lies between the coils. According to this aspect, current generated in the coils inductively couples to a second recharge coil that is angled within the patient's body.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: June 19, 2012
    Assignee: Medtronic, Inc.
    Inventor: Todd A. Kallmyer
  • Patent number: 8170637
    Abstract: An electrode set is disclosed that has two separable parts including an assembled base with printed circuit board basement, biasing member and top cover and an electrode. The basement and top cover may be made by metal or conductive material.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: May 1, 2012
    Assignee: NeuroSky, Inc.
    Inventors: KooHyoung Lee, ByeongHyeop Choi
  • Patent number: 8155746
    Abstract: A cochlear implant sound processor is powered by a rechargeable battery that is permanently integrated into the sound processor. The sound processor contains an inductive coil that may be tuned to an external charging coil for battery recharging. The electronic circuits and coil of the sound processor are housed in a material transparent to RF signals. The sound processor may be placed in a recharging base station in which the sound processor is positioned in a space surrounded by the inductive charging coil embedded in a material transparent to RF signals. The inductive charging coil sends power to the coil inside the processor and thereby recharges the battery. An alternative embodiment utilizes contacts in the sound processor case and aligned terminals in the recharging base station that allow direct charging of the battery.
    Type: Grant
    Filed: March 1, 2008
    Date of Patent: April 10, 2012
    Assignee: Advanced Bionics, LLC
    Inventors: Albert A. Maltan, David Miller, W. Vanbrooks Harrison
  • Patent number: 8155747
    Abstract: Methods and systems for modifying the parameters of at least one hearing device for a patient with residual hearing provide needed orchestration of acoustic and electric stimulation of patients wearing such devices.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: April 10, 2012
    Assignee: Advanced Bionics, LLC
    Inventors: Michael A. Faltys, Philip A. Segel, Edward H. Overstreet, William Vanbrooks Harrison
  • Patent number: 8155748
    Abstract: Apparatus and methods for converting one type of speech processor unit into another type of speech processor unit.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: April 10, 2012
    Assignee: Advanced Bionics, LLC
    Inventors: Thomas Patrick Walsh, Carla Mann Woods, Richard C. Ross, Rankiri Tissa Karunasiri, Anthony K. Arnold
  • Patent number: 8150537
    Abstract: A transcranial electrical stimulation device 1 having a wearing equipment 2 detachably worn onto a patient's head and at least a pair of electrodes 4 attached to the wearing equipment 2, the device for electrically stimulating a motor area of a patient's cerebral cortex by outputting current from the electrode 4 connected to a current generator. An engagement part 6 capable of engaging the wearing equipment 2 to a scalp with a thread-like body 8 is provided to the wearing equipment 2, and the electrode 4 is attached to the wearing equipment 2 protrudably to the head side of the electrode 4, and tip of the electrode 4 is capable of subcutaneously piercing through the head. It is unnecessary to bore a patient's skull outer layer with a drill, and a mounting of the electrode can be performed in a short time. The electrodes can be accurately positioned at predetermined positions of a patient's head, and the motor area of a cerebral cortex can be effectively stimulated.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: April 3, 2012
    Assignee: Hiroshima University
    Inventors: Nobuhiro Tanaka, Kazuyoshi Nakanishi
  • Patent number: 8150527
    Abstract: Methods and systems for modifying the parameters of at least one hearing device for a patient with residual hearing provide needed orchestration of acoustic and electric stimulation of patients wearing such devices.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: April 3, 2012
    Assignee: Advanced Bionics, LLC
    Inventors: Michael A. Faltys, Philip A. Segel, Edward H. Overstreet, William Vanbrooks Harrison
  • Patent number: 8135472
    Abstract: Systems and methods for treating autism spectrum disorders (ASD) and related dysfunctions are disclosed. A method in accordance with a particular embodiment includes determining that a patient suffers from an autistic disorder and, based at least in part on the determination, selecting a cortical signal delivery site. The method can further include implanting an electrode within the patient's skull and external to a cortical surface of the patient's brain, and treating the autistic disorder by applying electrical signals to the implanted electrode in conjunction administering an adjunctive therapy to the patient.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: March 13, 2012
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Brad C. Fowler, Dominic W. Massaro
  • Patent number: 8116875
    Abstract: New and useful neurostimulation systems are provided that include an implantable pulse generator dimensioned and configured for implantation in the skull of a patient. The implantable pulse generator has an electrode operatively associated with a distal end portion thereof and can be provided with adjustment means, such as an adjustable biasing member or spring arranged between the electrode to the distal end portion of the pulse generator. Also provided are systems involving networked neurostimulators that are configured and adapted to work jointly in accordance with prescribed treatment protocol to effect a desired recovery from brain injury. Such networked neurostimulation systems are particularly advantageous for effecting relatively large and/or relatively distant regions of the brain. Additionally, systems and methods for motor-evoked potential (MEP)-based neuromodulation are provided. Further, AC and/or DC stimulation can be utilized, depending on the precise implementation.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: February 14, 2012
    Assignee: Neuropoint Medical, Inc.
    Inventors: Thomas P. Osypka, Hyoung-Ihl Kim, Yong-Il Shin
  • Publication number: 20110319975
    Abstract: An electrode assembly for neuro-cranial stimulation includes an electrode, a conductive gel, and an adapter including an interior compartment for positioning the electrode relative to the adapter and for receiving and retaining the conductive gel. The conductive gel contacts the electrode along an electrode-gel interface. An orifice at one end of the interior compartment and adjacent to a positioning surface of the adapter for positioning the electrode assembly against a skin surface of a user enables the conductive gel is able to contact the skin surface of the user to define a gel-skin interface, such that a minimum distance between the electrode-gel interface and the gel-skin interface is maintained between 0.25 cm and 1.3 cm. An electrode assembly mounting apparatus is provided for adjustably positioning a plurality of electrode assemblies against target positions on the cranium.
    Type: Application
    Filed: December 30, 2009
    Publication date: December 29, 2011
    Applicant: Research Foundation of the City University of New York
    Inventors: Johnson Ho, Preet Minhas, Marom Bikson, Abhishek Datta, Varun Bansal, Jinal Patel, Dan Steingart, Jorge Vega, Lucas Parra
  • Patent number: 8065011
    Abstract: An adaptive method and apparatus for forecasting and controlling neurological abnormalities in humans such as seizures or other brain disturbances. The system is based on a multi-level control strategy. Using as inputs one or more types of physiological measures such as brain electrical, chemical or magnetic activity, heart rate, pupil dilation, eye movement, temperature, chemical concentration of certain substances, a feature set is selected off-line from a pre-programed feature library contained in a high level controller within a supervisory control architecture. This high level controller stores the feature library within a notebook or external PC. The supervisory control also contains a knowledge base that is continuously updated at discrete steps with the feedback information coming from an implantable device where the selected feature set (feature vector) is implemented.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: November 22, 2011
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Javier Ramón Echauz, Brian Litt, Rosana Esteller, George John Vachtsevanos
  • Patent number: 8050772
    Abstract: In one embodiment, a kit, for securing a lead or cannula within a burr hole, comprises: a base structure to be positioned immediately adjacent to or partially within the burr hole; a lead securing member for securing the lead within the burr hole, the lead securing member comprising a first arm structure and a second arm structure, at least one spring loaded structure adapted to exert a force to bring the first arm structure and the second arm structure together; and a positioning tool having a distal end adapted to be inserted within the lead securing member; wherein when the distal end of the positioning tool is positioned within the lead securing member, the distal end holds the first and second arm structures a sufficient distance apart to receive a lead or a cannula between the first and second arm structures.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: November 1, 2011
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Terry D. Daglow, Timothy S. Jones
  • Patent number: 8032231
    Abstract: Methods, systems, and devices to reduce power demands substantially for current deep brain stimulation DBS using smart technology type applications. The invention uses miniaturized components that allow integration with the implanted probe(s) themselves, and includes a skull-sited housing having all the controls and battery power supply needed. This avoids implanting obtrusive card-deck size batteries in the chest area and the use of vulnerable wire leads under the skin from the chest area to connect with the implanted electrode(s) on the skull, improving comfort. The Generating of non-continuous pulses on demand of conditions such as the occurrence of a tremor occurs, without having to continuously run pulses at all times, substantially increasing life spans over current techniques. Shaped electrodes and their methods further reduce power demands and efficacy by directing electric fields to focus towards specific areas and regions of the brain rather than inefficient 360-degree emission.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: October 4, 2011
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Richard D Gilson, Nizam Razack
  • Patent number: 8024049
    Abstract: Methods, systems, and devices to reduce power demands substantially for current deep brain stimulation DBS using smart technology type applications. The invention uses miniaturized components that allow integration with the implanted probe(s) themselves, and includes a skull-sited housing having all the controls and battery power supply needed. This avoids implanting obtrusive card-deck size batteries in the chest area and the use of vulnerable wire leads under the skin from the chest area to connect with the implanted electrode(s) on the skull, improving comfort. The Generating of non-continuous pulses on demand of conditions such as the occurrence of a tremor occurs, without having to continuously run pulses at all times, substantially increasing life spans over current techniques. Shaped electrodes and their methods further reduce power demands and efficacy by directing electric fields to focus towards specific areas and regions of the brain rather than inefficient 360-degree emission.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: September 20, 2011
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Richard D. Gilson, Nizam Razack
  • Patent number: 8010201
    Abstract: A system for removing charged particles from the brain in which a cannula with a distal anode, a proximal cathode and a vacuum are used. The cannula also comprises a fluid delivery port that is functionally connected to a vacuum, and holes with the distal end of the cannula. The charged species in the brain tissue are drawn to the anode that is on the distal end of the probe, when a cathode is placed on the skull of the patient and an appropriate electric field is applied between the anode and cathode. The use of a vacuum within the device to remove the destructive charged particles.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: August 30, 2011
    Assignee: Codman & Shurtleff, Inc.
    Inventor: Thomas M. DiMauro
  • Patent number: 7892182
    Abstract: A system including an implantable neurostimulator device capable of modulating cerebral blood flow to treat epilepsy and other neurological disorders. In one embodiment, the system is capable of modulating cerebral blood flow (also referred to as cerebral perfusion) in response to measurements and other observed conditions. Perfusion may be increased or decreased by systems and methods according to the invention as clinically required.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: February 22, 2011
    Assignee: NeuroPace, Inc.
    Inventors: Benjamin D. Pless, Brett Wingeier
  • Publication number: 20100217369
    Abstract: Apparatus and methods are described for stimulating hair growth of a subject. A housing is placed on the subject's scalp, the housing having a plurality of at least 24 electrodes coupled thereto. A control unit drives the plurality of electrodes to stimulate hair growth by driving the plurality of electrodes to apply a current to the subject's scalp. Other embodiments are also described.
    Type: Application
    Filed: January 7, 2010
    Publication date: August 26, 2010
    Applicant: RAIBOW MEDICAL LTD.
    Inventor: Yossi GROSS
  • Patent number: 7742820
    Abstract: Methods and systems for treating movement disorders are disclosed. A method in accordance with one embodiment can include determining that the movement disorder affects the patient's gait, oral functioning, and/or other functioning, and applying electrical stimulation proximate to the interhemispheric fissure, the Sylvian fissure, or between the two fissures, respectively. In another embodiment, the method can include selecting at least one neural process from among a plurality of processes sequentially carried out by a patient to cause a muscle movement in the patient (e.g., a planning process, an initiation process, and an execution process), and applying electrical stimulation to a location of the patient's brain associated with the at least one neural process.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: June 22, 2010
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Allen Wyler, Brad Fowler
  • Publication number: 20100152810
    Abstract: The invention relates to facial stimulation apparatus configured to be worn in a generally horizontal orientation on a user's head, and which uses the ear (14) as an anatomical reference to ensure correct and repeatable placement of skin electrodes (16a,16b) overlying the human facial nerves (1-5) to facilitate Electrical Muscle Stimulation (EMS). The apparatus is provided with a headband (22) having a bend or inclination (24) proximate a distal portion (20) thereof on which the electrodes (16a,16b) are attached. The apparatus is provided with an unambiguous location feature such that a vector component between said location feature and the electrode pair (16a, 16b) is fixed and non-adjustable thus ensuring repeatable and accurate positioning of each electrode (16a, 16b). The apparatus overcomes problems inherent in known devices and, in particular, requires no anatomical knowledge on the part of the end user for its safe and most effective placement.
    Type: Application
    Filed: November 20, 2009
    Publication date: June 17, 2010
    Inventors: Conor Minogue, Shane Ledwidth
  • Patent number: 7610095
    Abstract: A method and a Cranial Electrical Stimulator CES for operation in a diagnosis, treatment, research, and test mode related to brain disorders, namely to mental disorders, and to neurological disorders, such as migraine and epilepsy, are disclosed. Diagnosis is based on a detected condition of passage of an electric signal via a pathway in the brain defined as passing from a first to a second electrode of a pair of electrodes from an array attached to the skull of a patient. Treatment is achieved by injecting a treatment signal in the pathway detected as having a condition. A practitioner operates a workstation of the CES that controls a signal and routing box SRB generating input signals and receiving output signal from the brain, via the skull and electrodes. The PC of the workstation controls signal input, output reception, measurement, display and storage in memory.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: October 27, 2009
    Assignee: Biophysical Mind Technologies, Ltd.
    Inventor: Yakov Naisberg
  • Patent number: 7565202
    Abstract: The present invention is a system for mapping a high resolution image to a lower resolution electrode array and, by applying varying stimulus to neighboring electrodes, creating a perceived image greater in resolution than the electrode array. The invention is applicable to a wide range of neural stimulation devices including artificial vision and artificial hearing. By applying a sub-threshold stimulus to two neighboring electrodes where the sum of the stimuli is above the threshold of perception, a perception is created in neural tissue between the two electrodes. By adjusting the stimulus on neighboring electrodes, the location of stimulation can be altered. Further, noise can be applied to the stimulating electrode or its neighboring electrodes to reduce the threshold of stimulation.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: July 21, 2009
    Assignee: Second Sight Medical Products, Inc.
    Inventors: Robert J. Greenberg, Richard Williamson
  • Patent number: 7536215
    Abstract: A cortical sensing device is provided that includes a sensing element and at least one pad attached adjacent to a support member. The pad is substantially thin and made from flexibly-conformable material to accurately and safely place the sensing device upon the brain surface. Contact between the lower surface of the pad and the brain surface anchors the sensing element at a desired position against unintentional movement. The sensing device preferably has three circular pads equidistant from one another.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: May 19, 2009
    Assignee: Ad-Tech Medical Instrument Corp.
    Inventors: David A. Putz, Alfons Schnellberger
  • Patent number: 7467011
    Abstract: An article of clothing is pro-vided for selectively destroying dividing cells in living tissue formed of dividing cells and non-dividing cells. The dividing cells contain polarizable intracellular members and during late anaphase or telophase, the dividing cells are connected to one another by a cleavage furrow. The article of clothing includes insulated electrodes to be coupled to a generator for subjecting the living tissue to electric field conditions sufficient to cause movement of the polarizable intracellular members toward the cleavage furrow in response to a non-homogeneous electric field being induced in the dividing cells. The non-homogeneous electric field produces an increased density electric field in the region of the cleavage furrow. The movement of the polarizable intracellular intracellular members towards the cleavage furrow causes the breakdown thereof which adversely impacts the multiplication of the dividing cells.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: December 16, 2008
    Assignee: Standen Ltd
    Inventor: Yoram Palti
  • Patent number: 7454251
    Abstract: A device and method for retaining an excess portion of a lead implanted within or on a surface of a brain of a patient is disclosed. The device comprises a burr hole ring configured to be secured to a skull of the patient and a lead retainer extending from the burr hole ring. The lead retainer is configured to store at least a section of the excess portion of the lead.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: November 18, 2008
    Assignee: The Cleveland Clinic Foundation
    Inventors: Ali R. Rezai, Kenneth B. Baker, John D. Hall, Frank G. Shellock
  • Patent number: 7346391
    Abstract: A cerebral and/or interface system has a housing mechanism configured to be at least partially spaced in a cavity formed in the subject's skull; an attaching mechanism for attaching the housing mechanism to the subject's skull; a sealing mechanism for providing a fluid-tight seal between the housing mechanism and the subject's skull; a control mechanism spaced within the housing mechanism; a communication mechanism with one or more sensors embedded in the subject's brain connecting the control mechanism to the subject's brain; and a power source spaced within the housing mechanism.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: March 18, 2008
    Assignee: Flint Hills Scientific LLC
    Inventors: Ivan Osorio, Mark G. Frei
  • Patent number: 7277742
    Abstract: A cortical electrode support assembly is provided having at least one cortical sensing device, preferably an electrode device, a connector and a support apparatus. The cortical sensing device includes at least one sensing element, preferably a contact, and a lead with a connection member that is preferably a socket extending from the contact. The connector has a connecting element that is preferably a connecting pin adapted to receive the connection member and a electrical conduit extending from it. The support apparatus is provided with an adjustable clamp and a mount that has the connector secured to it. The electrical conduit preferably has an input jack for connecting it to an external device such as an external monitoring device. Preferably, the support apparatus also includes a post on which the mount is slidably secured at one end and the clamp is adjustably attached to the other end. A method of monitoring brain activity during brain surgery is also disclosed.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: October 2, 2007
    Assignee: Ad-Tech Medical Instrument Corporation
    Inventor: David A. Putz
  • Patent number: 7248928
    Abstract: An artificial eye system may include an extracorporeal unit mounted outside a user's body and an intracorporeal unit 3 mounted inside a user's eye. The extracorporeal unit 2 may include a visor and a power supply unit. The visor may include a primary coil, an image receiving element that receives a picture image, a light emitting element that transmits an electric stimulus signal produced based on an image signal from the image receiving element, and an eye-gaze point recognizing unit. The intracorporeal unit may include a secondary coil that is electro-magnetically induced by the primary coil, a light receiving element that receives the electric stimulus signal from the light emitting element, a signal processing circuit that processes the electric stimulus signal received by the light receiving element, and a plurality of electrodes that transmits the electric stimulus signal processed by the signal processing circuit to the retina.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: July 24, 2007
    Assignee: Nidek Co., Ltd.
    Inventor: Toru Yagi
  • Patent number: 7194316
    Abstract: A handheld head treatment device and method for reducing hair loss and stimulating hair growth by supplying current and laser light to a user's head. The device includes a current generator disposed within a housing configured to output a current for passage into the user's head and a laser source and guide means disposed within the housing configured to output and direct respective portions of the laser beam outward from the hair treatment device toward the user's head when the hair treatment device is in use. The method comprises the step of directing a series of different current and laser treatments to a portion of the scalp wherein the programmed current treatments are sequentially administered and include a continuous and pulsed direct current treatment.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: March 20, 2007
    Assignee: Elysee Beauty Products, Ltd.
    Inventors: Patrick Bousfield, Mark Chandler, Sanny Chiu
  • Patent number: 7177678
    Abstract: A cerebral interface system including a housing mechanism spaced at least partially in a cavity formed in the subject's skull; an attaching mechanism; a fluid-tight sealing mechanism; a control mechanism; a communication mechanism with one or more sensors embedded in the subject's brain connecting the control mechanism to the subject's brain; a power source; an inner wall substantially aligned with an inner surface of the subject's skull; an outer wall which may include an auxiliary portion extending tangentially outwardly from the cavity formed in the subject's skull; a communication link connecting the control mechanism to external apparatus for transmitting or receiving information related to detecting, predicting, controlling, or aborting abnormal brain activity of the subject; and an output mechanism which is activatable by the control mechanism.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: February 13, 2007
    Inventors: Ivan Osorio, Mark Frei
  • Patent number: 7158833
    Abstract: A ferrule for removably retaining a self-contained implantable device within a cranial opening of a patient is set forth. The ferrule includes a shelf portion, a wall portion, and at least one supporting tab connected to the wall portion. The shelf portion has an inner surface and an outer surface. The inner surface of the shelf portion substantially conforms to an implantable device. The wall portion has an inner surface and an outer surface and encompasses the shelf portion. The inner surface of the wall portion substantially conforms to the implantable device and the outer surface of the wall portion substantially conforms to the cranial opening.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: January 2, 2007
    Assignee: NeuroPace, Inc.
    Inventors: Benjamin D. Pless, Dennis Potts
  • 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: 6625481
    Abstract: An electrode assembly adapted to be attached to the skin over selected facial muscle groups picks up signals to be analyzed by an anesthesia adequacy monitor that measures the level of awareness of a living animal, typically a human being. The electrode assembly also includes a stimulator that stimulates a facial nerve to determine the level of paralysis, or neuro muscular block, of the facial muscles. Also disclosed is a method of manufacturing the electrode assembly by printing a pattern of electrically conductive material through a silk-screen or an ink type process onto a flexible layer, and then coating the result with a non-conducting adhesive except at points corresponding to sensing points for the desired muscle groups. Finally, a method for using such sensing and stimulating devices is shown in determining and maintaining an appropriate level of patient awareness, muscle paralysis, and analgesia under anesthesia.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: September 23, 2003
    Inventors: Henry L. Bennett, Jeffrey R. Cram, Bruce Jay Simon
  • Patent number: 6567702
    Abstract: A method of eliciting analgesia in a human subject by Transcranial Electrical Stimulation (TCES) is provided. Electrodes are secured to the skin of the subject's head and used to apply an electrical current to the electrodes. The current includes a direct current combined with rectangular current pulses (alternating current) delivered at a frequency of between 30 and 65 Hz. The frequency at which the pulses are delivered is periodically changed to a different value within the 30-65 Hz range. The total current supplied, a sum of the DC component and a Mean Absolute Deviation (MAD) of the current pulses, preferably has a value between 0.2 and 20 mA. The method is used during surgery and the post-operative procedure, and may also be used to treat a wide variety of neurological and other conditions.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: May 20, 2003
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Vladimir Nekhendzy, Mervyn Maze
  • Patent number: 6549808
    Abstract: A device for electrically exciting tissue in the uveal and periuveal areas of the eye includes a frame similar to an eyeglass frame in shape and construction. Two flat, disk-shaped electrodes are attached to the frame. When the frame is placed on the head of the patient, the electrodes are positioned adjacent the orbits of the patient's eyes. A voltage source and electronic circuitry is provided to establish a voltage differential between the electrodes thereby allowing electrical currents to flow from one electrode to the other, stimulating the tissue and other cells in the uveal and periuveal areas of the eyes. Alternatively, the patient's body can be isolated from ground and the voltage source used to place a negative charge on each electrode to thereby create beneficial negative ions in the uveal and periuveal areas of each eye.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: April 15, 2003
    Inventors: Heinz R. Gisel, Ryuichi Hayama, Tatsuo Tsunoda
  • Publication number: 20030045922
    Abstract: A method of treating the face includes positioning electrode pairs so as to stimulate predetermined nerves on a first side and a second side of the face and alternately stimulating a first pair and a second pair of the electrode pairs. The first pair is located on the first side of the face and the second pair comprises a reciprocal electrode pair of the first pair and is located on the second side of the face. The first pair and the second pair are stimulated alternately for a first predetermined period of time.
    Type: Application
    Filed: August 29, 2001
    Publication date: March 6, 2003
    Inventor: Nancy Northrop
  • 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
  • Patent number: 6482182
    Abstract: A brain lead anchoring system is described which allows for installation of a brain stimulation lead or a drug delivery catheter without the lead or catheter ever being unsupported during installation so that the lead or catheter does not move during the anchoring procedure. An anchor assembly contains an anchoring mechanism that is biased in the closed or anchoring position and is only open to allow installation of a lead when it is mated to an introducer instrument, which has prongs that open the anchoring mechanism. Once the lead is appropriately positioned within the brain and while the lead is still supported by the installation guiding device, the introducer instrument is withdrawn from the anchoring mechanism, which thus allows the anchoring mechanism to return to its closed position. A locking cap covers the aperture through the anchor assembly into the skull and mechanically ensures that the anchoring mechanism remains in the closed position.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: November 19, 2002
    Assignee: Surgical Navigation Technologies, Inc.
    Inventors: Catalina J. Carroll, Jaimie Henderson, John B. Clayton, Phillip T. Ulberg
  • Patent number: 6456884
    Abstract: A therapeutic system comprising an orthotic device adapted to extend the range of angular movement between adjacent first and second skeletal body parts which have been drawn to and involuntarily held in a limited angular range of motion position relative to one another by contraction of muscle fibers and connective tissue due to immobility of one or both of said skeletal body parts and an electrode component positioned to be effective to conduct an electrical current to at least one of said body parts.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: September 24, 2002
    Assignee: Trestles Healthcare, Inc.
    Inventor: John P. Kenney
  • Patent number: 6381481
    Abstract: The EEG electrode locator headgear allows the user to locate and apply disposable EEG electrodes accurately according to the International 10/20 System without technical assistance, to allow the acquisition of high quality EEG signals. The headgear includes a front forehead pad, a base strap assembly connected to the front forehead pad, a plurality of EEG electrode locators for receiving EEG electrodes, and a plurality of locator straps connected to the front pad of material, the base strap assembly, and to the plurality of EEG electrode locators for accurately positioning the plurality of EEG electrode locators positioned relative to the scalp of a user. A visor can be attached to the front pad of material, and the base strap assembly may include an occipital locator device. A plunger assembly with spreadable fingers for optionally parting the hair of the user's scalp is also provided that is inserted in the electrode locators to optionally prepare the user's scalp and to seat the electrodes.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: April 30, 2002
    Assignee: Advanced Brain Monitoring, Inc.
    Inventors: Daniel J. Levendowski, Christine Berka, Zoran R. Konstantinovic
  • Patent number: 6332097
    Abstract: A plurality of electrodes are mounted within a hood positionable over a subject's hed to form an array of concentric electrically conductive electrode rings. The rings can be applied to an outer surface of an electrically insulating liner insertable within the hood. The array preferably comprises five rings mounted within the hood to subtend a 90° arc on both sides of a central perpendicular axis of the hood. The four upper electrodes each subtend an arc of about 15° and the fifth (lower) electrode subtends an arc of about 6°, with 6° arc gaps between each pair of electrodes on either side of the central perpendicular axis. A voltage pulse signal generator's output signal is connected across the two upper electrode pairs, with alternate electrodes being connected to one of the two output terminals of the voltage pulse generator. A voltage divider applies a reduced voltage signal to the lower electrode.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: December 18, 2001
    Assignee: 314613 B.C. Ltd.
    Inventor: Douglas S. Beder
  • Patent number: 6324433
    Abstract: An assembly for securing an electrode lead within a burr hole formed in a patient's skull and couples it to a coupling lead which extends to a remote signal generator. The securing assembly has three separate components. The first is a bone port which seats within a preformed burr hole in the skull. The bone port is a cylindrical shaped short tube with central axial hole having electrical contacts formed on the inner surface. These electrical contacts are connected to corresponding contacts in a circumferential groove formed in the upper surface of the port for receiving the proximal end of the stimulation electrode. The second component is a docking element which seats in the port. The docking element has corresponding electrical contacts on the exterior surface thereof, which connect to terminal pads in an axial bore formed therein. The coupling lead is inserted into the bore and is thereby connected to the stimulation electrode by virtue of the contacts made between the port and the docking element.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: November 27, 2001
    Assignee: ElectroCare Technologies, LLC
    Inventor: Joseph P. Errico
  • Publication number: 20010031916
    Abstract: An electrode assembly adapted to be attached to the skin over selected facial muscle groups picks up signals to be analyzed by an anesthesia adequacy monitor that measures the level of awareness of a living animal, typically a human being. The electrode assembly also includes a stimulator that stimulates a facial nerve to determine the level of paralysis, or neuro muscular block, of the facial muscles. Also disclosed is a method of manufacturing the electrode assembly by printing a pattern of electrically conductive material through a silk-screen or an ink type process onto a flexible layer, and then coating the result with a non-conducting adhesive except at points corresponding to sensing points for the desired muscle groups. Finally, a method for using such sensing and stimulating devices is shown in determining and maintaining an appropriate level of patient awareness, muscle paralysis, and analgesia under anesthesia.
    Type: Application
    Filed: March 20, 2001
    Publication date: October 18, 2001
    Inventors: Henry L. Bennett, Jeffrey R. Cram, Bruce Jay Simon
  • Patent number: 6233472
    Abstract: An electrode assembly adapted to be attached to the skin over selected facial muscle groups picks up signals to be analyzed by an anesthesia adequacy monitor that measures the level of awareness of a living animal, typically a human being. The electrode assembly also includes a stimulator that stimulates a facial nerve to determine the level of paralysis, or neuro muscular block, of the facial muscles. Also disclosed is a method of manufacturing the electrode assembly by printing a pattern of electrically conductive material through a silk-screen or an ink type process onto a flexible layer, and then coating the result with a non-conducting adhesive except at points corresponding to sensing points for the desired muscle groups. Finally, a method for using such sensing and stimulating devices is shown in determining and maintaining an appropriate level of patient awareness, muscle paralysis, and analgesia under anesthesia.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: May 15, 2001
    Assignee: Patient Comfort, L.L.C.
    Inventors: Henry L. Bennett, Jeffrey R. Cram, Bruce Jay Simon
  • Patent number: 6161030
    Abstract: The EEG electrode locator headgear allows the user to locate and apply disposable EEG electrodes accurately according to the International 10/20 System without technical assistance, to allow the acquisition of high quality EEG signals. The headgear includes a front forehead pad, a base strap assembly connected to the front forehead pad, a plurality of EEG electrode locators for receiving EEG electrodes, and a plurality of locator straps connected to the front pad of material, the base strap assembly, and to the plurality of EEG electrode locators for accurately positioning the plurality of EEG electrode locators positioned relative to the scalp of a user. A visor can be attached to the front pad of material, and the base strap assembly may include an occipital locator device. A plunger assembly with spreadable fingers for parting the hair of the scalp of the user is also provided that is inserted in the electrode locators to prepare the scalp of the user and to seat the electrodes.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: December 12, 2000
    Assignee: Advanced Brain Monitoring, Inc.
    Inventors: Daniel J. Levendowski, Christine Berka, Zoran R. Konstantinovic
  • Patent number: 6154669
    Abstract: A headset and system for taking EEG measurements on the head of a test subject. The headset has a plurality of electrode sensors in predetermined anatomical positions on the head of a subject to take EEG measurements, for example of the subject's response to certain stimuli. The electrode sensors are formed of dry conductive foam rubber pads attached to conductor elements. An individual shielded cable is attached to each sensor to carry the detected signal to a signal processor. The sensors may be formed of a carbon impregnated foam rubber pad that offers high conductivity. The sensors do not require wetting agent, and thus can be used in a very time efficient manner, and can be easily replaced for sanitary considerations.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: November 28, 2000
    Assignee: Capita Systems, Inc.
    Inventors: David B. Hunter, Kenneth B. McCarraher, Kenneth P. Fratto, Richard M. Brueggman, Tomas J. Stenstrom, Harlan I. Gustafson, Jr.
  • Patent number: 6077237
    Abstract: A headset to accompany virtual reality units which provides a user the sensation of motion by vestibular stimulation. A fixed or adjustable device positions conductors on the forehead and mastoid regions of the user's head capable of receiving computer generated electrical currents that may be synchronized to audio or video displays to enhance the effect of virtual environments by causing dysequilibrium and a resulting sensation of motion therein.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: June 20, 2000
    Assignee: Adaboy, Inc.
    Inventors: Craig Campbell, William Heckel
  • Patent number: 6041262
    Abstract: A plurality of electrodes are mounted within a hood positionable over a subject's head to form an array of concentric electrically conductive electrode rings. The rings can be applied to an outer surface of an electrically insulating liner insertable within the hood. The array preferably comprises five rings mounted within the hood to subtend a 90.degree. arc on both sides of a central perpendicular axis of the hood. The four upper electrodes each subtend an arc of about 15.degree. and the fifth (lower) electrode subtends an arc of about 6.degree., with 6.degree. arc gaps between each pair of electrodes on either side of the central perpendicular axis. A voltage pulse signal generator's output signal is connected across the two upper electrode pairs, with alternate electrodes being connected to one of the two output terminals of the voltage pulse generator. A voltage divider applies a reduced voltage signal to the lower electrode.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: March 21, 2000
    Assignee: 314613 B.C. Ltd.
    Inventor: Douglas S. Beder
  • Patent number: 5800351
    Abstract: The invention is a headset for holding electrodes on the head of a person for measuring the electrical activity of the person's brain. In detail, the invention includes a pair of fittings for attachment about the ears of a person. A first flexible front strap is adapted to fit about the forehead of the person is connected to each fitting. A second flexible strap adapted to fit about the rear of the head of the person is also connected to each fitting. A plurality of sets of flexible members is connected to each fitting and which are adapted to fit over the top portion of the head of the person between the first and second straps. A plurality of electrode mounts are movably mounted to each of the plurality of sets of guide members. The head set's ear fittings also provides a means for holding the lead wires of electrodes placed on a person's face for monitoring such parameters as eye movement and facial muscle activity during routine sleep testing.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: September 1, 1998
    Assignee: Rest Technologies, Inc.
    Inventor: Christopher Allen Mann
  • Patent number: 5479934
    Abstract: Headpiece for making EEG measurements on the head of a patient in the form of a human being utilizing electrode positioning system requiring the use of a plurality of electrodes in predetermined anatomical positions on the head comprising a plurality of longitudinally extending and transversely extending strips of an elastic material to form a pattern having openings therein. A plurality of electrode assemblies are mounted on the strips in spaced-apart positions. Straps are secured to the strips for securing said strips and the electrode assemblies mounted thereon to the head of the patient by stretching of the strips so that the electrode assemblies are positioned in the desired anatomical positions on the head regardless of the size of the head of the human being.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: January 2, 1996
    Assignee: Physiometrix, Inc.
    Inventor: Mir A. Imran
  • Patent number: 5464446
    Abstract: A system for anchoring a lead within a cranial burr hole. The system provides for a lead to be anchored in either of two sizes of burr holes. In further provides for the lead to remain secured to the stereotactic instrument during the installation of the lead anchoring system. The lead anchoring system consists of three parts: A plug having a central lead passage; a cap configured to fit over the plug while the lead is retained by the stereotactic instrument and thereby seal the burr hole and anchor the lead; and a socket designed to permit the plug to be fitted within a larger sized burr hole. In the preferred embodiment each of the parts, i.e. plug, socket and cap are constructed from silicone. The anchoring system of the present invention may be employed with a stimulation lead, a sensing lead, a combination thereof or any other elongated member requiring passage and fixation through the cranium.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: November 7, 1995
    Assignee: Medtronic, Inc.
    Inventors: Chrit Dreessen, Paul A. Gubbels, Paul Adams