Patents Assigned to Dolphin Medical, Inc.
  • Separating motion from cardiac signals using second order derivative of the photo-plethysmogram and fast fourier transforms
    Patent number: 8073516
    Abstract: The present invention is directed toward a pulse oximetry system for the determination of a physiological parameter capable of removing motion artifacts from physiological signals comprises a hardware subsystem and a software subsystem. The software subsystem is used in conjunction with the hardware subsystem to perform a method for removing a plurality of motion artifacts from the photo-plethysmographic data and for obtaining a measure of at least one physiological parameter from the data.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: December 6, 2011
    Assignee: Dolphin Medical, Inc.
    Inventors: John E. Scharf, Bhavin B. Shah
  • Separating motion from cardiac signals using second order derivative of the photo-plethysmogram and fast fourier transforms
    Patent number: 7020507
    Abstract: The present invention is directed toward a pulse oximetry system for the determination of a physiological parameter capable of removing motion artifacts from physiological signals comprises a hardware subsystem and a software subsystem. The software subsystem is used in conjunction with the hardware subsystem to perform a method for removing a plurality of motion artifacts from the photo-plethysmographic data and for obtaining a measure of at least one physiological parameter from the data.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: March 28, 2006
    Assignee: Dolphin Medical, Inc.
    Inventors: John E. Scharf, Bhavin Shah
  • Auditory alarms for physiological data monitoring
    Patent number: 6947780
    Abstract: The present invention provides methods and devices for monitoring physiological data such that a health care provider is able to effectively monitor a patient's health status, including, for example, blood flow characteristics, without having to maintain constant visual contact. In one embodiment of the present invention, a physiological data monitoring system measures at least one physiological characteristic wherein the physiological data monitoring system comprises a sensor unit and a monitoring unit in data communication with the sensor unit. The monitoring unit has a sonification module that comprises one programmable sound generator module to produce a plurality of signals indicative of a physiological parameter and a memory module for storing a plurality of control parameters for managing the programmable sound generator module, wherein the plurality of signals produced have a plurality of frequencies modified in accordance with at least one physiological data value.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: September 20, 2005
    Assignee: Dolphin Medical, Inc.
    Inventor: Tom D. Scharf
  • Separating motion from cardiac signals using second order derivative of the photo-plethysmogram and fast fourier transforms
    Publication number: 20030225337
    Abstract: The present invention is directed toward a pulse oximetry system for the determination of a physiological parameter capable of removing motion artifacts from physiological signals comprises a hardware subsystem and a software subsystem. The software subsystem is used in conjunction with the hardware subsystem to perform a method for removing a plurality of motion artifacts from the photo-plethysmographic data and for obtaining a measure of at least one physiological parameter from the data.
    Type: Application
    Filed: January 30, 2003
    Publication date: December 4, 2003
    Applicant: Dolphin Medical, Inc.
    Inventors: John E. Scharf, Bhavin B. Shah