Patents by Inventor Rex Patterson

Rex Patterson 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: 7815574
    Abstract: Systems and methods for noninvasive assessment of cardiac tissue properties and cardiac parameters using ultrasound techniques are disclosed. Determinations of myocardial tissue stiffness, tension, strain, strain rate, and the like, may be used to assess myocardial contractility, myocardial ischemia and infarction, ventricular filling and atrial pressures, and diastolic functions. Non-invasive systems in which acoustic techniques, such as ultrasound, are employed to acquire data relating to intrinsic tissue displacements are disclosed. Non-invasive systems in which ultrasound techniques are used to acoustically stimulate or palpate target cardiac tissue, or induce a response at a cardiac tissue site that relates to cardiac tissue properties and/or cardiac parameters are also disclosed.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: October 19, 2010
    Assignees: PhysioSonics, Inc., University of Washington
    Inventors: Pierre D. Mourad, Michel Kliot, Rex Patterson, Alec Rooke
  • Publication number: 20070016031
    Abstract: Systems and methods for noninvasive assessment of cardiac tissue properties and cardiac parameters using ultrasound techniques are disclosed. Determinations of myocardial tissue stiffness, tension, strain, strain rate, and the like, may be used to assess myocardial contractility, myocardial ischemia and infarction, ventricular filling and atrial pressures, and diastolic functions. Non-invasive systems in which acoustic techniques, such as ultrasound, are employed to acquire data relating to intrinsic tissue displacements are disclosed. Non-invasive systems in which ultrasound techniques are used to acoustically stimulate or palpate target cardiac tissue, or induce a response at a cardiac tissue site that relates to cardiac tissue properties and/or cardiac parameters are also disclosed.
    Type: Application
    Filed: March 31, 2006
    Publication date: January 18, 2007
    Applicants: ALLEZ PHYSIONIX LIMITED, UNIVERSITY OF WASHINGTON
    Inventors: Pierre Mourad, Michel Kliot, Rex Patterson, Alec Rooke
  • Patent number: 7022077
    Abstract: Systems and methods for noninvasive assessment of cardiac tissue properties and cardiac parameters using ultrasound techniques are disclosed. Determinations of myocardial tissue stiffness, tension, strain, strain rate, and the like, may be used to assess myocardial contractility, myocardial ischemia and infarction, ventricular filling and atrial pressures, and diastolic functions. Non-invasive systems in which acoustic techniques, such as ultrasound, are employed to acquire data relating to intrinsic tissue displacements are disclosed. Non-invasive systems in which ultrasound techniques are used to acoustically stimulate or palpate target cardiac tissue, or induce a response at a cardiac tissue site that relates to cardiac tissue properties and/or cardiac parameters are also disclosed.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: April 4, 2006
    Assignees: Allez Physionix Ltd., University of Washington
    Inventors: Pierre D. Mourad, Michel Kliot, Rex Patterson, Alec Rooke
  • Patent number: 6875176
    Abstract: Systems and methods for assessment of tissue properties, noninvasively, by acquiring data relating to at least one aspect of intrinsic and/or induced tissue displacement, or associated biological responses, are provided. Data relating to tissue displacement and associated biological changes may be acquired by detecting acoustic properties of tissue using ultrasound interrogation pulses, preferably in a scatter or Doppler detection mode. Based on this data, tissue properties are assessed, characterized and monitored. Specific applications for systems and methods of the present invention include non-invasive assessment and monitoring of intracranial pressure (ICP), arterial blood pressure (ABP), CNS autoregulation status, vasospasm, stroke, local edema, infection and vasculitus, as well as diagnosis and monitoring of diseases and conditions that are characterized by physical changes in tissue properties.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: April 5, 2005
    Assignees: Aller Physionix Limited, University of Washington
    Inventors: Pierre D. Mourad, Michel Kliot, Ali Mesiwala, Rex Patterson, Jeffrey G. Jarvik
  • Publication number: 20040059220
    Abstract: Systems and methods for noninvasive assessment of cardiac tissue properties and cardiac parameters using ultrasound techniques are disclosed. Determinations of myocardial tissue stiffness, tension, strain, strain rate, and the like, may be used to assess myocardial contractility, myocardial ischemia and infarction, ventricular filling and atrial pressures, and diastolic functions. Non-invasive systems in which acoustic techniques, such as ultrasound, are employed to acquire data relating to intrinsic tissue displacements are disclosed. Non-invasive systems in which ultrasound techniques are used to acoustically stimulate or palpate target cardiac tissue, or induce a response at a cardiac tissue site that relates to cardiac tissue properties and/or cardiac parameters are also disclosed.
    Type: Application
    Filed: July 1, 2003
    Publication date: March 25, 2004
    Applicants: ALLEZ PHYSIONIX LIMITED, UNIVERSITY OF WASHINGTON
    Inventors: Pierre D. Mourad, Michel Kliot, Rex Patterson, George Alec Rooke
  • Publication number: 20020095087
    Abstract: Systems and methods for assessment of tissue properties, noninvasively, by acquiring data relating to at least one aspect of intrinsic and/or induced tissue displacement, or associated biological responses, are provided. Data relating to tissue displacement and associated biological changes may be acquired by detecting acoustic properties of tissue using ultrasound interrogation pulses, preferably in a scatter or Doppler detection mode. Based on this data, tissue properties are assessed, characterized and monitored. Specific applications for systems and methods of the present invention include non-invasive assessment and monitoring of intracranial pressure (ICP), arterial blood pressure (ABP), CNS autoregulation status, vasospasm, stroke, local edema, infection and vasculitus, as well as diagnosis and monitoring of diseases and conditions that are characterized by physical changes in tissue properties.
    Type: Application
    Filed: November 28, 2001
    Publication date: July 18, 2002
    Inventors: Pierre D. Mourad, Michel Kliot, Ali Mesiwala, Rex Patterson, Jeffrey G. Jarvik