Patents by Inventor James A. Watson

James A. Watson 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).

  • Pulse Rate Determination Using Gaussian Kernel Smoothing of Multiple Inter-Fiducial Pulse Periods
    Publication number: 20130137945
    Abstract: Systems and methods are provided for determining the pulse rate of a patient from multiple fiducial points using Gaussian kernel smoothing. Based on acquired pleth signals, each recorded fiducial pulse period is converted to a Gaussian kernel function. The Gaussian kernel functions for all recorded fiducial points are summed to generate a Gaussian kernel smoothed curve. The pulse rate of a patient may be determined from the Gaussian kernel smoothed curve. All acquired fiducial pulse periods contribute to generate the Gaussian kernel smoothing curve. The number of fiducial points utilized may change to improve pulse rate determination or provide additional functionality to the system.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Paul S. Addison, James Watson
  • THROUGH-PORT OXY-FUEL BURNER
    Publication number: 20130122442
    Abstract: A fluid-cooled through-port oxy-fuel burner for converting an air-fuel regenerator port from air-fuel combustion to oxy-fuel combustion and an associated furnace and method. The oxy-fuel burner is suitable for installing through a regenerator port neck. The burner has an elbow-like bend to accommodate the geometry of the regenerator port neck. The burner has a cooling fluid jacket, a fuel conduit, a first oxidant conduit, and optionally an oxidant staging conduit.
    Type: Application
    Filed: November 15, 2011
    Publication date: May 16, 2013
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Mark Daniel D'AGOSTINI, Michael Edward HABEL, Matthew James WATSON
  • SYSTEMS AND METHODS FOR DETERMINING RESPIRATION INFORMATION FROM A PHOTOPLETHYSMOGRAPH
    Publication number: 20130079606
    Abstract: A patient monitoring system may receive a photoplethysmograph (PPG) signal including samples of a pulse waveform. The PPG signal may demonstrate morphology changes based on respiration. The system may calculate morphology metrics from the PPG signal, the first derivative of the PPG signal, the second derivative of the PPG signal, or any combination thereof. The morphology metrics may demonstrate amplitude modulation, baseline modulation, and frequency modulation of the PPG signal that is related to respiration. Morphology metric signals generated from the morphology metrics may be used to determine respiration information such as respiration rate.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Scott McGonigle, Paul S. Addison, James Ochs, James Watson
  • SYSTEMS AND METHODS FOR ANALYZING A PHYSIOLOGICAL SENSOR SIGNAL
    Publication number: 20130079601
    Abstract: The present disclosure relates generally to patient monitoring systems and, more particularly, to signal analysis for patient monitoring systems. In one embodiment, a method of analyzing a detector signal of a physiological patient sensor includes obtaining the detector signal from the physiological patient sensor, wherein the detector signal crosses a horizontal boundary more than once. The method also includes determining the relative time and the slope of the detector signal at each boundary crossing. The method further includes estimating the amplitude of the detector signal based, at least in part, on the determined relative time and slope of the detector signal at each boundary crossing. The method also includes determining a physiological parameter of a patient based, at least in part, on the estimate of the amplitude of the detector signal.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Paul S. Addison, James Watson
  • SYSTEMS AND METHODS FOR DETERMINING RESPIRATION INFORMATION FROM A PHOTOPLETHYSMOGRAPH
    Publication number: 20130079656
    Abstract: A signal representing physiological information may include information related to respiration. A patient monitoring system may generate a plurality of autocorrelation sequences from the signal and combine the autocorrelation sequences to generate a combined autocorrelation sequence. The combined autocorrelation sequence may be analyzed to identify one or more peaks that may correspond to respiration information. Respiration information such as respiration rate may be determined based on the one or more peaks.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Jimmy Dripps, James Ochs, Paul S. Addison, James Watson
  • SYSTEMS AND METHODS FOR DETERMINING RESPIRATION INFORMATION FROM A PHOTOPLETHYSMOGRAPH
    Publication number: 20130079657
    Abstract: A signal representing physiological information may include information related to respiration. A patient monitoring system may utilize a wavelet transform to generate a scalogram from the signal. A threshold for the scalogram may be calculated, and scalogram values may be compared to the threshold. One of the scales meeting the threshold may be selected as representing respiration information such as respiration rate. The respiration information may be determined based on the selected scale.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: James Ochs, James Watson, Binwel Weng, Paul S. Addison, Scott McGonigle
  • SYSTEMS AND METHODS FOR DETERMINING RESPIRATION INFORMATION FROM A PHOTOPLETHYSMOGRAPH
    Publication number: 20130080489
    Abstract: A patient monitoring system may receive a photoplethysmograph (PPG) signal including samples of a pulse waveform. A plurality of morphology metric signals may be generated from the PPG signal. The system may generate an autocorrelation sequence for each of the morphology metric signals. An autocorrelation metric may be generated from each of the autocorrelation sequences and may represent the regularity or periodicity of the morphology metric signal. The autocorrelation sequences may be combined to generate a combined autocorrelation sequence, with the weighting of the autocorrelation sequences based on the autocorrelation metric. The combined autocorrelation sequence may be used to determine physiological information.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: James Ochs, Paul S. Addison, James Watson
  • VENOUS OXYGEN SATURATION SYSTEMS AND METHODS
    Publication number: 20130066173
    Abstract: Methods and systems are discussed for determining venous oxygen saturation by calculating a ratio of ratios from respiration-induced baseline modulations. A calculated venous ratio of ratios may be compared with a look-up table value to estimate venous oxygen saturation. A calculated venous ratio of ratios is compared with an arterial ratio of ratios to determine whether baseline modulations are the result of a subject's respiration or movement. Such a determination is also made by deriving a venous ratio of ratios using a transform technique, such as a continuous wavelet transform. Derived venous and arterial saturation values are used to non-invasively determine a cardiac output of the subject.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 14, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Paul Addison, James Watson, Paul Mannheimer
  • VENOUS OXYGEN SATURATION SYSTEMS AND METHODS
    Publication number: 20130066176
    Abstract: Methods and systems are discussed for determining venous oxygen saturation by calculating a ratio of ratios from respiration-induced baseline modulations. A calculated venous ratio of ratios may be compared with a look-up table value to estimate venous oxygen saturation. A calculated venous ratio of ratios is compared with an arterial ratio of ratios to determine whether baseline modulations are the result of a subject's respiration or movement. Such a determination is also made by deriving a venous ratio of ratios using a transform technique, such as a continuous wavelet transform. Derived venous and arterial saturation values are used to non-invasively determine a cardiac output of the subject.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 14, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Paul Addison, James Watson, James Ochs
  • VENOUS OXYGEN SATURATION SYSTEMS AND METHODS
    Publication number: 20130066175
    Abstract: Methods and systems are discussed for determining venous oxygen saturation by calculating a ratio of ratios from respiration-induced baseline modulations. A calculated venous ratio of ratios may be compared with a look-up table value to estimate venous oxygen saturation. A calculated venous ratio of ratios is compared with an arterial ratio of ratios to determine whether baseline modulations are the result of a subject's respiration or movement. Such a determination is also made by deriving a venous ratio of ratios using a transform technique, such as a continuous wavelet transform. Derived venous and arterial saturation values are used to non-invasively determine a cardiac output of the subject.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 14, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Paul Addison, James Watson
  • VENOUS OXYGEN SATURATION SYSTEMS AND METHODS
    Publication number: 20130066174
    Abstract: Methods and systems are discussed for determining venous oxygen saturation by calculating a ratio of ratios from respiration-induced baseline modulations. A calculated venous ratio of ratios may be compared with a look-up table value to estimate venous oxygen saturation. A calculated venous ratio of ratios is compared with an arterial ratio of ratios to determine whether baseline modulations are the result of a subject's respiration or movement. Such a determination is also made by deriving a venous ratio of ratios using a transform technique, such as a continuous wavelet transform. Derived venous and arterial saturation values are used to non-invasively determine a cardiac output of the subject.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 14, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Paul S. Addison, James Watson, James Ochs, Scott McGonigle
  • SYSTEMS AND METHODS FOR MAINTAINING SHEAVE GROOVES
    Publication number: 20130039706
    Abstract: A test kit for unevenly worn sheave grooves, a tool for regrooving sheave grooves that are found to be unevenly worn, and a method for testing for and maintaining the sheave grooves utilizing the test kit and tool. The test kit includes magnetic standards which adhere to a sheave beneath the portion of the sheave touched by the ropes, facilitating testing without having to unrope the sheave. Unevenly worn sheave grooves are visually ascertained by holding a straightedge adjacent to the magnetic standards. The regrooving tool includes a shank that can be received by a stand set up next to the sheave, a body attached to the shank, and an interchangeable cutting insert received by the body that is inserted in the sheave groove. When the sheave is rotated, the sheave groove is ground by the cutting insert, with each groove being ground sequentially until all grooves are again uniform.
    Type: Application
    Filed: October 17, 2012
    Publication date: February 14, 2013
    Applicant: VERTICAL MOTION INNOVATIONS, LLC
    Inventors: Robert D. Wilson, JR., Christian E. Thomsen, James Watson, Keegan Carriveau, Max Wilson
  • METHODS AND SYSTEMS FOR DETERMINING PHYSIOLOGICAL PARAMETERS USING TEMPLATE MATCHING
    Publication number: 20130024123
    Abstract: A patient monitoring system may be configured to use template matching in determining physiological parameters. A physiological signal may be monitored, and a wavelet transform may be performed. The wavelet transform, or parameters derived thereof such as energy distribution or relative phase difference, may be compared with one or more templates using template matching. Templates may be based on, for example, physiological data, mathematical models, or look-up tables, and may be pre-computed and stored. Physiological parameters may be determined based on the template matching results. Scale variability, confidence metrics, or both, may be used to aid in determining the physiological parameter.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 24, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: James Ochs, Paul Addison, James Watson
  • Systems and Methods for Ridge Selection in Scalograms of Signals
    Publication number: 20130011032
    Abstract: According to embodiments, systems, devices, and methods for ridge selection in scalograms are disclosed. Ridges or ridge components are features within a scalogram which may be computed from a signal such as a physiological (e.g., photoplethysmographic) signal. Ridges may be identified from one or more scalograms of the signal. Parameters characterizing these ridges may be determined Based at least in part on these parameters, a ridge density distribution function is determined A ridge is selected from analyzing this ridge density distribution function. In some embodiments, the selected ridge is used to determine a physiological parameter such as respiration rate.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 10, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: James Watson, Paul Stanley Addison, David Clifton
  • ORGANIC COMPOUNDS
    Publication number: 20130005735
    Abstract: The present invention relates to compounds of formula (I) wherein X, R1, R2, R3, R4 and R5 are as defined herein, which are useful for treating diseases which respond to CXCR2 receptor mediators. Pharmaceutical compositions that contain the compounds and processes for preparing the compounds are also described.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 3, 2013
    Inventors: Urs Baettig, Anne-Marie D'souza, Peter Hunt, Neil John Press, Simon James Watson
  • SYSTEMS AND METHODS FOR COMPUTING CONTINUOUS WAVELET TRANSFORM ON A DEDICATED INTEGRATED CIRCUIT
    Publication number: 20130007083
    Abstract: Methods and systems are disclosed for computing one or more continuous wavelet transforms on a dedicated integrated circuit. The systems comprise an integrated circuit having a receiver, memory, and processing circuitry. The receiver receives input data corresponding to an input signal. The memory stores information corresponding to one or more wavelet functions scaled over a set of scales. The processing circuitry is configured to compute, in-parallel, various portions of a single continuous wavelet transform of the input signal based on the received input data and the stored information corresponding to a single wavelet function computed over a set of scales.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Peter Galen, James Ochs, James Watson, Tom Wilmering, Paul Addison
  • Systems and methods for maintaining sheave grooves
    Patent number: 8336429
    Abstract: A test kit for unevenly worn sheave grooves, a tool for regrooving sheave grooves that are found to be unevenly worn, and a method for testing for and maintaining the sheave grooves utilizing the test kit and tool. The test kit includes magnetic standards which adhere to a sheave beneath the portion of the sheave touched by the ropes, facilitating testing without having to unrope the sheave. Unevenly worn sheave grooves are visually ascertained by holding a straightedge adjacent to the magnetic standards. The regrooving tool includes a shank that can be received by a stand set up next to the sheave, a body attached to the shank, and an interchangeable cutting insert received by the body that is inserted in the sheave groove. When the sheave is rotated, the sheave groove is ground by the cutting insert, with each groove being ground sequentially until all grooves are again uniform.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: December 25, 2012
    Assignee: Vertical Motion Innovations, LLC
    Inventors: Robert D. Wilson, Jr., Christian E. Thomsen, James Watson, Keegan Carriveau, Max Wilson
  • Squaramide derivatives as CXCR2 antagonist
    Patent number: 8329754
    Abstract: The present invention relates to compounds of formula (I) wherein X, R1, R2, R3, R4 and R5 are as defined herein, which are useful for treating diseases which respond to CXCR2 receptor mediators. Pharmaceutical compositions that contain the compounds and processes for preparing the compounds are also described.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: December 11, 2012
    Assignee: Novartis AG
    Inventors: Urs Baettig, Anne-Marie D'Souza, Peter Hunt, Neil John Press, Simon James Watson
  • Systems And Methods For Detecting And Monitoring Arrhythmias Using the PPG
    Publication number: 20120310100
    Abstract: Systems and methods for detecting and monitoring arrhythmias from a signal are provided. A signal processing system may transform a signal using a wavelet transformation and analyze changes in features of the transformed signal to detect pulse rhythm abnormalities. For example, the system may detect pulse rhythm abnormalities by analyzing energy parameters, morphology changes, and pattern changes in the scalogram of a PPG signal. Further, the system may detect pulse rhythm abnormalities by analyzing both the PPG signal and its corresponding scalogram. Physiological information, such as cardiac arrhythmia, may be derived based on the detected pulse rhythm abnormality.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 6, 2012
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Peter Galen, Paul Addison, James Watson, Scott McGonigle
  • Systems And Methods For Signal Rephasing Using The Wavelet Transform
    Publication number: 20120310051
    Abstract: Methods and systems are disclosed for defining a physiological parameter. A first physiological signal is transformed into in a complex transform space, the transformed signal having a magnitude and a phase. The transformed signal is rotated by altering its phase. The rotated signal is inverted, and the inverted signal is aligned in phase with a second physiological signal. The aligned inverted signal and the second physiological signal are combined to form a combined signal indicative of the physiological parameter.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 6, 2012
    Applicant: Nellcor Puritan Bennett Ireland
    Inventors: Paul Addison, Scott McGonigle, James Watson