Patents by Inventor Mohamed K. Diab

Mohamed K. Diab 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).

  • Patent number: 10772542
    Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal into separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, calibration data from multiple calibration data sets is used to configure the demodulation of the composite signal into separate output signals.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: September 15, 2020
    Assignee: Masimo Corporation
    Inventors: Walter M. Weber, Ammar Al-Ali, Mohamed K. Diab, Marcelo M. Lamego
  • Patent number: 10674948
    Abstract: Embodiments of the present disclosure provide a hypersaturation index for measuring a patient's absorption of oxygen in the blood stream after a patient has reached 100% oxygen saturation. This hypersaturation index provides an indication of the partial pressure of oxygen of a patient. In an embodiment of the present invention, a hypersaturation index is calculated based on the absorption ratio of two different wavelengths of energy at a measuring site. In an embodiment of the invention, a maximum hypersaturation index threshold is determined such that an alarm is triggered when the hypersaturation index reaches or exceeds the threshold. In another embodiment, an alarm is triggered when the hypersaturation index reaches or falls below its starting point when it was first calculated.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: June 9, 2020
    Assignee: Mastmo Corporation
    Inventors: Mohamed K. Diab, Prashanth Iyengar, Anand Sampath, Ammar Al-Ali
  • Publication number: 20200163597
    Abstract: Systems, methods, and apparatuses for enabling a plurality of non-invasive, physiological sensors to obtain physiological measurements from the same tissue site. Each of a plurality of sensors can be integrated with or attached to a multi-sensor apparatus. The multi-sensor apparatus can orient the plurality of non-invasive, physiological sensors such that each of the plurality of non-invasive, physiological sensors obtains physiological data from the same or a similar location.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 28, 2020
    Inventors: Cristiano Dalvi, Hung The Vo, Jeroen Poeze, Ferdyan Lesmana, Jesse Chen, Kevin Hughes Pauley, Ruiqi Long, Stephen Leonard Monfre, Sean Merritt, Mohamed K. Diab, Massi Joe E. Kiani
  • Publication number: 20200060591
    Abstract: Embodiments of the present disclosure provide a hypersaturation index for measuring a patient's absorption of oxygen in the blood stream after a patient has reached 100% oxygen saturation. This hypersaturation index provides an indication of the partial pressure of oxygen of a patient. In an embodiment of the present invention, a hypersaturation index is calculated based on the absorption ratio of two different wavelengths of energy at a measuring site. In an embodiment of the invention, a maximum hypersaturation index threshold is determined such that an alarm is triggered when the hypersaturation index reaches or exceeds the threshold. In another embodiment, an alarm is triggered when the hypersaturation index reaches or falls below its starting point when it was first calculated.
    Type: Application
    Filed: November 5, 2019
    Publication date: February 27, 2020
    Inventors: Mohamed K. Diab, Prashanth Iyengar, Anand Sampath, Ammar Al-Ali
  • Patent number: 10531819
    Abstract: Embodiments of the present disclosure provide a hypersaturation index for measuring a patient's absorption of oxygen in the blood stream after a patient has reached 100% oxygen saturation. This hypersaturation index provides an indication of the partial pressure of oxygen of a patient. In an embodiment of the present invention, a hypersaturation index is calculated based on the absorption ratio of two different wavelengths of energy at a measuring site. In an embodiment of the invention, a maximum hypersaturation index threshold is determined such that an alarm is triggered when the hypersaturation index reaches or exceeds the threshold. In another embodiment, an alarm is triggered when the hypersaturation index reaches or falls below its starting point when it was first calculated.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: January 14, 2020
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Prashanth Iyengar, Anand Sampath, Ammar Al-Ali
  • Publication number: 20190350498
    Abstract: A physiological sensor has light emitting sources, each activated by addressing at least one row and at least one column of an electrical grid. The light emitting sources are capable of transmitting light of multiple wavelengths and a detector is responsive to the transmitted light after attenuation by body tissue.
    Type: Application
    Filed: June 11, 2019
    Publication date: November 21, 2019
    Inventors: Robert A. Smith, David Dalke, Ammar Al-Ali, Mohamed K. Diab, Marcelo M. Lamego
  • Patent number: 10335072
    Abstract: A patient monitor has multiple sensors adapted to attach to tissue sites of a living subject. The sensors generate sensor signals that are responsive to at least two wavelengths of optical radiation after attenuation by pulsatile blood within the tissue sites.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 2, 2019
    Assignee: MASIMO CORPORATION
    Inventors: Ammar Al-Ali, Mohamed K. Diab, Massi E. Kiani, Robert James Kopotic, David Tobler
  • Patent number: 10231676
    Abstract: A portable patient monitor has an integrated mode in which it operates as a plug-in module for a multiparameter patient monitoring system (MPMS). The patient monitor also has a portable mode in which it operates separately from the MPMS as a battery-powered handheld or standalone instrument. The patient monitor has a sensor port that receives a signal indicative of physiological parameters as input to an internal processor. The patient monitor processes this sensor signal to derive patient measurements. In the portable mode, this information is provided on its display. In the integrated mode, the patient monitor provides patient measurements to the MPMS to be displayed on a MPMS monitor.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: March 19, 2019
    Assignee: Masimo Corporation
    Inventors: Ammar Al-Ali, Don Carothers, David Dalke, Mohamed K. Diab, Julian Goldman, Massi E. Kiani, Michael Lee, Jerome Novak, Robert Smith, Val E. Vaden
  • Publication number: 20180153448
    Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal into separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, calibration data from multiple calibration data sets is used to configure the demodulation of the composite signal into separate output signals.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 7, 2018
    Inventors: Walter M. Weber, Ammar Al-Ali, Mohamed K. Diab, Marcelo M. Lamego
  • Publication number: 20180055430
    Abstract: Embodiments of the present disclosure provide a hypersaturation index for measuring a patient's absorption of oxygen in the blood stream after a patient has reached 100% oxygen saturation. This hypersaturation index provides an indication of the partial pressure of oxygen of a patient. In an embodiment of the present invention, a hypersaturation index is calculated based on the absorption ratio of two different wavelengths of energy at a measuring site. In an embodiment of the invention, a maximum hypersaturation index threshold is determined such that an alarm is triggered when the hypersaturation index reaches or exceeds the threshold. In another embodiment, an alarm is triggered when the hypersaturation index reaches or falls below its starting point when it was first calculated.
    Type: Application
    Filed: September 15, 2017
    Publication date: March 1, 2018
    Inventors: Mohamed K. Diab, Prashanth Iyengar, Anand Sampath, Ammar Al-Ali
  • Patent number: 9861305
    Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal into separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, calibration data from multiple calibration data sets is used to configure the demodulation of the composite signal into separate output signals.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 9, 2018
    Assignee: Masimo Corporation
    Inventors: Walter M. Weber, Ammar Al-Ali, Mohamed K. Diab, Marcelo M. Lamego
  • Patent number: 9788768
    Abstract: A physiological parameter tracking system has a reference parameter calculator configured to provide a reference parameter responsive to a physiological signal input. A physiological measurement output is a physiological parameter derived from the physiological signal input during a favorable condition and an estimate of the physiological parameter according to the reference parameter during an unfavorable condition.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: October 17, 2017
    Assignee: MASIMO CORPORATION
    Inventors: Ammar Al-Ali, Mohamed K. Diab, Walter M. Weber
  • Patent number: 9775546
    Abstract: Embodiments of the present disclosure provide a hypersaturation index for measuring a patient's absorption of oxygen in the blood stream after a patient has reached 100% oxygen saturation. This hypersaturation index provides an indication of the partial pressure of oxygen of a patient. In an embodiment of the present invention, a hypersaturation index is calculated based on the absorption ratio of two different wavelengths of energy at a measuring site. In an embodiment of the invention, a maximum hypersaturation index threshold is determined such that an alarm is triggered when the hypersaturation index reaches or exceeds the threshold. In another embodiment, an alarm is triggered when the hypersaturation index reaches or falls below its starting point when it was first calculated.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: October 3, 2017
    Assignee: MASIMO CORPORATION
    Inventors: Mohamed K. Diab, Prashanth Iyengar, Anand Sampath, Ammar Al-Ali
  • Patent number: 9730640
    Abstract: A processor provides signal quality based limits to a signal strength operating region of a pulse oximeter. These limits are superimposed on the typical gain dependent signal strength limits. If a sensor signal appears physiologically generated, the pulse oximeter is allowed to operate with minimal signal strength, maximizing low perfusion performance. If a sensor signal is potentially due to a signal induced by a dislodged sensor, signal strength requirements are raised. Thus, signal quality limitations enhance probe off detection without significantly impacting low perfusion performance. One signal quality measure used is pulse rate density, which defines the percentage of time physiologically acceptable pulses are occurring. If the detected signal contains a significant percentage of unacceptable pulses, the minimum required signal strength is raised proportionately.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: August 15, 2017
    Assignee: MASIMO CORPORATION
    Inventors: Mohamed K. Diab, Ammar Al-Ali
  • Publication number: 20170188919
    Abstract: A patient monitor has multiple sensors adapted to attach to tissue sites of a living subject. The sensors generate sensor signals that are responsive to at least two wavelengths of optical radiation after attenuation by pulsatile blood within the tissue sites.
    Type: Application
    Filed: November 14, 2016
    Publication date: July 6, 2017
    Inventors: Ammar Al-Ali, Mohamed K. Diab, Massi E. Kiani, Robert James Kopotic, David Tobler
  • Patent number: 9675286
    Abstract: A time domain rule-based processor provides recognition of pulses in a pulse oximeter-derived waveform.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: June 13, 2017
    Assignee: Masimo Corporation
    Inventor: Mohamed K. Diab
  • Patent number: 9622693
    Abstract: The disclosure includes pulse oximetry systems and methods for determining point-by-point saturation values by encoding photoplethysmographs in the complex domain and processing the complex signals. The systems filter motion artifacts and other noise using a variety of techniques, including statistical analysis such as correlation, or phase filtering.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: April 18, 2017
    Assignee: MASIMO CORPORATION
    Inventor: Mohamed K. Diab
  • Patent number: 9566019
    Abstract: A patient interface in accordance with one embodiment of the present disclosure is configured to be at least partially carried by a patient and to receive gas exhaled by the patient. The patient interface includes first and second cannula tubes each having a first end and a second end, the first ends are configured to be inserted into the nostrils of a patient, the first and second cannula tubes are configured to direct exhaled gas from the patient from the first ends to said second ends. The patient interface also includes first and second sensors positioned near the second ends, and the first and second sensors are configured to provide first and second signals based upon the gas, wherein the first and second signals are indicative of a physiological parameter of the patient. The patient interface also includes a communications link configured to provide the signal to a physiological monitor.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: February 14, 2017
    Assignee: MASIMO CORPORATION
    Inventors: Ammar Al-Ali, Mohamed K. Diab
  • Patent number: 9549696
    Abstract: Confidence in a physiological parameter is measured from physiological data responsive to the intensity of multiple wavelengths of optical radiation after tissue attenuation. The physiological parameter is estimated based upon the physiological data. Reference data clusters are stored according to known values of the physiological parameter. At least one of the data clusters is selected according to the estimated physiological parameter. The confidence measure is determined from a comparison of the selected data clusters and the physiological data.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: January 24, 2017
    Assignee: CERCACOR LABORATORIES, INC.
    Inventors: Marcelo Lamego, Mohamed K. Diab, Ammar Al-Ali
  • Publication number: 20170014083
    Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain.
    Type: Application
    Filed: March 21, 2016
    Publication date: January 19, 2017
    Inventors: Mohamed K. Diab, Rex J. McCarthy