Patents Assigned to Natus Medical, Inc.
  • Publication number: 20070156063
    Abstract: A method and device for automatically assessing loss of hearing sensitivity and compression (recruitment) with user defined frequency resolution by means of extrapolated DPOAE I/O functions and ABRs as well as for automatically fitting hearing aids without any cooperation of the subject tested using a device having a display screen attached to a handheld device generating and collecting otoacoustic emission signals and brain stem response signals into a programmed with a clinical audiogram with fitting parameters for hearing aids calculated on the basis of assessed hearing threshold and compression and identifying the type of hearing required for the individual.
    Type: Application
    Filed: January 8, 2007
    Publication date: July 5, 2007
    Applicant: Natus Medical, Inc.
    Inventors: Peter Zoth, Thomas Hanssen
  • Patent number: 7223245
    Abstract: A method and device for automatically assessing loss of hearing sensitivity and compression (recruitment) with user defined frequency resolution by means of extrapolated DPOAE I/O functions and ABRs as well as for automatically fitting hearing aids without any cooperation of the subject tested using a device having a display screen attached to a handheld device generating and collecting otoacoustic emission signals and brain stem response signals into a programmed with a clinical audiogram with fitting parameters for hearing aids calculated on the basis of assessed hearing threshold and compression and identifying the type of hearing required for the individual.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: May 29, 2007
    Assignee: NATUS Medical, Inc.
    Inventors: Peter Zoth, Thomas Janssen
  • Patent number: 7131990
    Abstract: A phototherapy system and device is disclosed, including an array of light sources arranged so as to achieve substantially uniform distribution of light on a subject. The light sources can be arranged in a number of configurations, including but not limited to distributions in which the density of lights sources is greater in the periphery than in the center. The present invention also includes a light diffusing panel to increase exposure uniformity, and a targeting mechanism to ensure that the device is properly aligned over the subject.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: November 7, 2006
    Assignee: Natus Medical Inc.
    Inventors: Vineet Bansal, Bryan Flaherty, Chris Chung
  • Patent number: 7133715
    Abstract: An apparatus and method for evaluation of hearing loss is disclosed. The apparatus and method use evoked Auditory Brainstem Responses (ABR) to determine if the subject is able to hear click stimuli that are repeatedly administered. In order to facilitate efficient differentiation of the ABR from the accompanying noise, normative data is used to detect test conditions where physiological, non-physiological, and ambient acoustic noise would interfere with the progression of test.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: November 7, 2006
    Assignee: Natus Medical Inc.
    Inventors: Matthijs P. Smits, Bryan P. Flaherty
  • Patent number: 6832663
    Abstract: A one-piece, transparent flexible ear coupler for use with hearing evaluation is disclosed. It includes an annular side wall and a bottom wall forming an acoustic chamber. A flexible adhesive-backed flange is disposed on the periphery of the ear coupler. The flange attaches to the subject's head, firmly holding the ear coupler in place over the ear. The annular side wall has a port for the placement of a transducer assembly, and also has ribs to help lock the transducer assembly in place. The transducer assembly can be placed in an up or down position, and can be switched between positions while the coupler is attached to the subject's head. The ear coupler advantageously conforms to the subject's head, thereby minimizing the likelihood that the ear coupler will become detached during testing. The coupler can be inexpensively manufactured, since its one-piece design allows the use of relatively low-cost processes such as injection molding and thermoforming.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: December 21, 2004
    Assignee: Natus Medical Inc.
    Inventors: Jessica Ash Warring, Alfred Christian Walton
  • Publication number: 20040216947
    Abstract: A one-piece, transparent flexible ear coupler for use with hearing evaluation is disclosed. It includes an annular side wall and a bottom wall forming an acoustic chamber. A flexible adhesive-backed flange is disposed on the periphery of the ear coupler. The flange attaches to the subject's head, firmly holding the ear coupler in place over the ear. The annular side wall has a port for the placement of a transducer assembly, and also has ribs to help lock the transducer assembly in place. The transducer assembly can be placed in an up or down position, and can be switched between positions while the coupler is attached to the subject's head. The ear coupler advantageously conforms to the subject's head, thereby minimizing the likelihood that the ear coupler will become detached during testing. The coupler can be inexpensively manufactured, since its one-piece design allows the use of relatively low-cost processes such as injection molding and thermoforming.
    Type: Application
    Filed: June 3, 2004
    Publication date: November 4, 2004
    Applicant: Natus Medical Inc.
    Inventors: Jessica Ash Warring, Alfred Christian Walton
  • Patent number: 6620100
    Abstract: An apparatus and method for evaluation of hearing loss is disclosed. The apparatus and method use evoked Auditory Brainstem Responses (ABR) to determine if the subject is able to hear repeatedly administered click stimuli. In order to optimize evaluation, the present invention uses normative data to accurately weight the auditory responses, so that evaluation will be possible in different or changing noise conditions.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: September 16, 2003
    Assignee: Natus Medical Inc.
    Inventors: Matthijs P. Smits, Aaron R. Thornton
  • Patent number: 6544190
    Abstract: A noninvasive apparatus and method for measuring a subject's end tidal carbon monoxide concentration is disclosed, featuring the ability to (i) determine carbon monoxide concentration on a breath-by-breath basis, (ii) determine mean carbon monoxide concentration by averaging local carbon monoxide values, (iii) avoid the premature determination that an end tidal phase is over, and (iv) determine when breath variability or system variability will likely preclude accurate testing. The disclosed device and method allow for more robust determination of end tidal carbon monoxide concentration in subjects with turbulent or irregular breath patterns.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: April 8, 2003
    Assignee: Natus Medical Inc.
    Inventors: Matthijs P. Smits, Bryan P. Flaherty
  • Patent number: 6503207
    Abstract: The disclosure describes a multi-mode audiometric device comprising a stimulus generator adapted to transmit at least one true random stimulus sequence to a subject's inner ear, a first detector for detecting at least one AEP signal having at least a first waveform, a second detector for detecting at least one OAE signal having at least a second waveform; a signal analyzer for analyzing the AEP and OAE signals, the signal analyzer including a first averager for reconstructing the first waveform and a second averager for reconstructing the second waveform; and a synchronizer for synchronizing the stimulus generator and signal analyzer.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: January 7, 2003
    Assignee: Natus Medical, Inc.
    Inventor: Robert T. Stone
  • Patent number: 6475163
    Abstract: An apparatus and method for evaluation of hearing loss is disclosed. The apparatus and method use evoked Auditory Brainstem Responses (ABR) to determine if the subject is able to hear iteratively administered click stimuli. The present invention evaluates the sufficiency of the patient connections, namely earphones and electrodes, to the evaluation device. More particularly, the present invention determines if the earphones are detached or deformed, if the electrodes have been reversed, or if the electrodes have become detached.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: November 5, 2002
    Assignee: Natus Medical, Inc
    Inventors: Matthijs P. Smits, Vineet Bansal, Abraham J. Totah, Bryan P. Flaherty, Alfred Christian Walton
  • Patent number: 6416479
    Abstract: A non-invasive method for the early detection and assessment of the severity of various pathological conditions in pregnancy including pregnancy-induced hypertension, preeclampsia, premature uterine contractions and intrauterine growth retardation. The carbon monoxide or end-tidal carbon monoxide concentration is measured in a pregnant woman's breath and compared to thresholds for determining the likelihood of onset or actual onset of these pathological conditions. The measurements can be made in a clinic, hospital, physician's office, or any other location easily accessible to pregnant women using any of a number of devices for measuring breath carbon monoxide. One solution is to measure end-tidal breath carbon monoxide using the Natus® CO-Stat® End Tidal Breath Analyzer, manufactured and sold by Natus Medical Inc. of San Carlos, Calif.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: July 9, 2002
    Assignee: Natus Medical, Inc.
    Inventor: Daniel Seidman
  • Patent number: 6386314
    Abstract: An earphone assembly is disclosed that includes an annular baffle having an outer surface and an inner surface as well as an interior wall and an exterior wall. The interior wall defines a central chamber. A transparent, flexible lid is attached to the baffle along the outer surface, completely covering the central chamber and forming an acoustic seal with the baffle. The lid has an inner face and an outer face. The flexibility of the earphone is improved by creating hinges in the lid and by providing cuts, or other discontinuities, in the baffle. For example, a radial cut may be disposed in the annular baffle. Further, a circumferential cut may also (or alternatively) be disposed in the baffle, extending from the inner surface and disposed between the exterior wall and the interior wall. At least one hinge may be disposed on the flexible lid. To improve the attachment of the earphone to the patient's head, tabs are mounted to the exterior wall.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: May 14, 2002
    Assignee: Natus Medical, Inc.
    Inventors: Neil J. Sheehan, Christian Walton, David Sheraton, Toshibumi Wakayama, William New, Jr.
  • Patent number: 6343230
    Abstract: An apparatus and method for evaluation of hearing loss is disclosed. The apparatus and method use evoked Auditory Brainstem Responses (ABR) to determine if the subject is able to hear repeatedly administered click stimuli. In order to expedite evaluation, the present invention uses normative data to accurately predict when a subject is likely to fail the test, so that evaluation will not needlessly continue for a subject who is very unlikely to pass.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: January 29, 2002
    Assignee: Natus Medical, Inc.
    Inventors: Matthijs P. Smits, Christophe M. Coppin
  • Patent number: 5913309
    Abstract: A disposable element for ear phone assembly is provided for use with a hearing screening instrument to test infants for hearing impairments. The ear phone assembly includes a generally D-shaped reusable cover including a back wall having a perimeter, a side wall extending from the perimeter to define a cavity for receiving an infant's ear, a port in the cover to receive and support a transducer, and a generally D-shaped disposable element that is adhesive coated on two sides to be secured to the cover and to the patient's head. The cover may have a notch located along the perimeter of the re-usable body for removing the disposable element. A liner is used to cover the disposable element adhesive sides to protect them from contamination during packaging and prior to use. The disposable element may have a die cut so that a portion of it can be removed to make the ear phone adjustable for infants with large ears.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: June 22, 1999
    Assignee: Natus Medical Inc.
    Inventors: Neil J. Sheehan, Robert T. Stone
  • Patent number: 5826582
    Abstract: An ear phone assembly is provided for use with a hearing screening instrument to test infants for hearing impairments. The ear phone includes a generally D-shaped reusable cover including a back wall having a perimeter, a side wall extending from the perimeter to define a cavity for receiving an infant's ear, a port in the cover to receive and support a transducer, and a generally D-shaped disposable element that is adhesive coated on two sides to be secured to the cover and to the patient's head. The cover may have a notch located along the perimeter of the re-usable body for removing the disposable element. A liner is used to cover the disposable element adhesive sides to protect them from contamination during packaging and prior to use. The disposable element may have a die cut so that a portion of it can be removed to make the ear phone adjustable for infants with large ears. The ear phone is low in cost and capable of being used with any conventional hearing screening equipment.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: October 27, 1998
    Assignee: Natus Medical Inc.
    Inventors: Neil J. Sheehan, Robert T. Stone
  • Patent number: 5243709
    Abstract: A cup member defines a cavity for covering an infant's ear, and an annular member extends from an end portion of the cup member. The cup member and the annular member each comprise a first sound attenuating layer of foam material which attenuates high frequency sound and a second sound attenuating layer of a material which attenuates low frequency sound. The annular member has a surface for placing the earmuff against the infant's head. A hydrogel adhesive is disposed on the surface for bonding the earmuff to the infant's head. The hydrogel layer preferably extends along the plane defined by the surface of the annular member and into the cavity defined by the cup member for bonding the earmuff to a substantially hairless portion of the infant's head located behind the pinna.
    Type: Grant
    Filed: September 4, 1991
    Date of Patent: September 14, 1993
    Assignee: Natus Medical, Inc.
    Inventors: Neil J. Sheehan, William M. Moore, William New, Jr.
  • Patent number: D469873
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: February 4, 2003
    Assignee: Natus Medical Inc.
    Inventors: Jessica Ash Warring, Alfred Christian Walton