Patents by Inventor Esmaiel Kiani-Azarbayjany

Esmaiel Kiani-Azarbayjany has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080004514
    Abstract: The present disclosure describes a method and an apparatus for analyzing measured signals using various processing techniques. In certain embodiments, the measured signals are physiological signals. In certain embodiments, the measurements relate to blood constituent measurements including blood oxygen saturation.
    Type: Application
    Filed: June 21, 2007
    Publication date: January 3, 2008
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, Ibrahim Elfadel, Rex McCarthy, Walter Weber, Robert Smith
  • Publication number: 20070291832
    Abstract: The present disclosure describes a method and an apparatus for analyzing measured signals using various processing techniques. In certain embodiments, the measured signals are physiological signals. In certain embodiments, the measurements relate to blood constituent measurements including blood oxygen saturation.
    Type: Application
    Filed: June 21, 2007
    Publication date: December 20, 2007
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, Ibrahim Elfadel, Rex McCarthy, Walter Weber, Robert Smith
  • Publication number: 20070249918
    Abstract: The present disclosure describes a method and an apparatus for analyzing measured signals using various processing techniques. In certain embodiments, the measured signals are physiological signals. In certain embodiments, the measurements relate to blood constituent measurements including blood oxygen saturation.
    Type: Application
    Filed: June 21, 2007
    Publication date: October 25, 2007
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, Ibrahim Elfadel, Rex McCarthy, Walter Weber, Robert Smith
  • Publication number: 20070225581
    Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Application
    Filed: May 25, 2007
    Publication date: September 27, 2007
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, Ibrahim Elfadel, Rex McCarthy, Walter Weber, Robert Smith
  • Patent number: 7254433
    Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: August 7, 2007
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Esmaiel Kiani-Azarbayjany, Ibrahim M. Elfadel, Rex J. McCarthy, Walter M. Weber, Robert A. Smith
  • Patent number: 7239905
    Abstract: A blood constituent monitoring method for inducing an active pulse in the blood volume of a patient. The induction of an active pulse results in a cyclic, and periodic change in the flow of blood through a fleshy medium under test. By actively inducing a change of the blood volume, modulation of the volume of blood can be obtained to provide a greater signal to noise ratio. This allows for the detection of constituents in blood at concentration levels below those previously detectable in a non-invasive system. Radiation which passes through the fleshy medium is detected by a detector which generates a signal indicative of the intensity of the detected radiation. Signal processing is performed on the electrical signal to isolate those optical characteristics of the electrical signal due to the optical characteristics of the blood.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: July 3, 2007
    Assignee: Masimo Laboratories, Inc.
    Inventors: Esmaiel Kiani-Azarbayjany, Mohamed Kheir Diab, James M. Lepper, Jr.
  • Patent number: 7215986
    Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: May 8, 2007
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Esmaiel Kiani-Azarbayjany, Ibrahim M. Elfadel, Rex J. McCarthy, Walter M. Weber, Robert A. Smith
  • Patent number: 7215984
    Abstract: The present invention involves method and apparatus for analyzing measured signals that are modeled as containing primary and secondary portions. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, the present invention involves utilizing a transformation which evaluates a plurality of possible signal coefficients in order to find appropriate coefficients. Alternatively, the present invention involves using statistical functions or Fourier transform and windowing techniques to determine the coefficients relating to two measured signals. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: May 8, 2007
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Esmaiel Kiani-Azarbayjany, Ibrahim M. Elfadel, Rex J. McCarthy, Walter M. Weber, Robert A. Smith
  • Publication number: 20060217609
    Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Application
    Filed: May 11, 2006
    Publication date: September 28, 2006
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, Ibrahim Elfadel, Rex McCarthy, Walter Weber, Robert Smith
  • Publication number: 20060089549
    Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Application
    Filed: December 3, 2004
    Publication date: April 27, 2006
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, Ibrahim Elfadel, Rex McCarthy, Walter Weber, Robert Smith
  • Publication number: 20050272987
    Abstract: A blood constituent monitoring method for inducing an active pulse in the blood volume of a patient. The induction of an active pulse results in a cyclic, and periodic change in the flow of blood through a fleshy medium under test. By actively inducing a change of the blood volume, modulation of the volume of blood can be obtained to provide a greater signal to noise ratio. This allows for the detection of constituents in blood at concentration levels below those previously detectable in a non-invasive system. Radiation which passes through the fleshy medium is detected by a detector which generates a signal indicative of the intensity of the detected radiation. Signal processing is performed on the electrical signal to isolate those optical characteristics of the electrical signal due to the optical characteristics of the blood.
    Type: Application
    Filed: August 16, 2005
    Publication date: December 8, 2005
    Inventors: Esmaiel Kiani-Azarbayjany, Mohamed Diab, James Lepper
  • Publication number: 20050256385
    Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Application
    Filed: June 15, 2005
    Publication date: November 17, 2005
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, Ibrahim Elfadel, Rex McCarthy, Walter Weber, Robert Smith
  • Publication number: 20050209517
    Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Application
    Filed: March 2, 2005
    Publication date: September 22, 2005
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, Ibrahim Elfadel, Rex McCarthy, Walter Weber, Robert Smith
  • Patent number: 6931268
    Abstract: A blood glucose monitoring system is disclosed which provides for inducing an active pulse in the blood volume of a patient. The induction of an active pulse results in a cyclic, and periodic change in the flow of blood through a fleshy medium under test. By actively inducing a change of the blood volume, modulation of the volume of blood can be obtained to provide a greater signal to noise ratio. This allows for the detection of constituents in blood at concentration levels below those previously detectable in a non-invasive system. Radiation which passes through the fleshy medium is detected by a detector which generates a signal indicative of the intensity of the detected radiation. Signal processing is performed on the electrical signal to isolate those optical characteristics of the electrical signal due to the optical characteristics of the blood.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: August 16, 2005
    Assignee: Masimo Laboratories, Inc.
    Inventors: Esmaiel Kiani-Azarbayjany, Mohamed Kheir Diab, James M. Lepper Jr.
  • Publication number: 20050043600
    Abstract: An optical probe, which is particularly suited to reduce noise in measurements taken on an easily compressible material, such as a finger, a toe, a forehead, an earlobe, or a lip, measures characteristics of the material. A neonatal and adult disposable embodiment of the probe include adhesive coated surfaces to securely affix the probe onto the patient. In addition, the surface of the probe is specially constructed to reduce the effect of ambient noise.
    Type: Application
    Filed: October 4, 2004
    Publication date: February 24, 2005
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, David Tobler, Thomas Gerhardt, Eugene Mason, Mike Mills
  • Patent number: 6826419
    Abstract: A signal processor which acquires a first signal, including a first desired signal portion and a first undesired signal portion, and a second signal, including a second desired signal portion and a second undesired signal portion, wherein the first and second desired signal portions are correlated. The signals may be acquired by propagating energy through a medium and measuring an attenuated signal after transmission or reflection. Alternatively, the signals may be acquired by measuring energy generated by the medium. A processor of the present invention generates a noise reference signal that is a combination of the undesired signal portions and is correlated to both the first and second undesired signal portions. The noise reference signal is then used to remove the undesired portion of each of the first and second measured signals.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: November 30, 2004
    Assignee: Masimo Corporation
    Inventors: Mohamed Kheir Diab, Esmaiel Kiani-Azarbayjany
  • Publication number: 20040236196
    Abstract: A signal processor which acquires a first signal, including a first primary signal portion and a first secondary signal portion, and a second signal, including a second primary signal portion and a second secondary signal portion, wherein the first and second primary signal portions are correlated. The signals may be acquired by propagating energy through a medium and measuring an attenuated signal after transmission or reflection. Alternatively, the signals may be acquired by measuring energy generated by the medium. A processor of the present invention generates a primary or secondary reference signal which is a combination, respectively, of only the primary or secondary signal portions. The secondary reference signal is then used to remove the secondary portion of each of the first and second measured signals via a correlation canceler, such as an adaptive noise canceler, preferably of the joint process estimator type.
    Type: Application
    Filed: February 13, 2004
    Publication date: November 25, 2004
    Inventors: Mohamed K. Diab, Esmaiel Kiani-Azarbayjany, Walter M. Weber
  • Patent number: 6813511
    Abstract: An optical probe, which is particularly suited to reduce noise in measurements taken on an easily compressible material, such as a finger, a toe, a forehead, an earlobe, or a lip, measures characteristics of the material. A neonatal and adult disposable embodiment of the probe include adhesive coated surfaces to securely affix the probe onto the patient. In addition, the surface of the probe is specially constructed to reduce the effect of ambient noise.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: November 2, 2004
    Assignee: Masimo Corporation
    Inventors: Mohamed Diab, Esmaiel Kiani-Azarbayjany, David R. Tobler, Thomas J. Gerhardt, Eugene E. Mason, Mike A. Mills
  • Publication number: 20040210146
    Abstract: The present invention involves method and apparatus for analyzing measured signals that are modeled as containing primary and secondary portions. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, the present invention involves utilizing a transformation which evaluates a plurality of possible signal coefficients in order to find appropriate coefficients. Alternatively, the present invention involves using statistical functions or Fourier transform and windowing techniques to determine the coefficients relating to two measured signals. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Application
    Filed: May 4, 2004
    Publication date: October 21, 2004
    Inventors: Mohamed K. Diab, Esmaiel Kiani-Azarbayjany, Ibrahim M. Elfadel, Rex J. McCarthy, Walter M. Weber, Robert A. Smith
  • Publication number: 20040204636
    Abstract: The present invention involves method and apparatus for analyzing measured signals that are modeled as containing primary and secondary portions. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, the present invention involves utilizing a transformation which evaluates a plurality of possible signal coefficients in order to find appropriate coefficients. Alternatively, the present invention involves using statistical functions or Fourier transform and windowing techniques to determine the coefficients relating to two measured signals. Use of this invention is described in particular detail with respect to blood oximetry measurements.
    Type: Application
    Filed: May 4, 2004
    Publication date: October 14, 2004
    Inventors: Mohamed K. Diab, Esmaiel Kiani-Azarbayjany, Ibrahim M. Elfadel, Rex J. McCarthy, Walter M. Weber, Robert A. Smith