Patents by Inventor Dwayne Westenskow

Dwayne Westenskow 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: 20030156143
    Abstract: A method, system and apparatus for the monitoring, diagnosis and evaluation of the state of a dynamic drug display system is disclosed. This invention provides for the rapid cognitive grasp of the overall state of drug combination effects with respect to a dynamic system. The system provides for displayed objects, which change in real-time to show the changes of the functions of the system. In particular, this invention is directed to the processing and display of drug data for the use of doctors in the process of monitoring or administering drugs to patients.
    Type: Application
    Filed: October 11, 2002
    Publication date: August 21, 2003
    Applicant: University of Utah
    Inventors: Dwayne Westenskow, James Agutter, Noah Syroid, David Strayer, Robert Albert, Frank Drews
  • Patent number: 6306098
    Abstract: Apparatus and methods for non-invasively determining cardiac output using partial re-breathing techniques are disclosed in which the apparatus is constructed with an instantaneously adjustable deadspace for accommodating differences in breathing capacities of various patients. The apparatus is constructed of inexpensive elements, including a single two-way valve which renders the apparatus very simple to use and inexpensive so that the unit may be readily disposable. The method of the invention provides a novel means of estimating cardiac output based on alveolar CO2 values rather than end-tidal CO2 values as previously practiced. A program for calculating cardiac output is also disclosed.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: October 23, 2001
    Assignee: Novametrix Medical Systems Inc.
    Inventors: Joseph A. Orr, Scott A. Kofoed, Dwayne Westenskow, Michael B. Jaffe
  • Publication number: 20010031928
    Abstract: Apparatus and methods for non-invasively determining cardiac output using partial re-breathing techniques are disclosed in which the apparatus is constructed with an instantaneously adjustable deadspace for accommodating differences in breathing capacities of various patients. The apparatus is constructed of inexpensive elements, including a single two-way valve which renders the apparatus very simple to use and inexpensive so that the unit may be readily disposable. The method of the invention provides a novel means of estimating cardiac output based on alveolar CO2 values rather than end-tidal CO2 values as previously practiced. A program for calculating cardiac output is also disclosed.
    Type: Application
    Filed: January 23, 2001
    Publication date: October 18, 2001
    Inventors: Joseph A. Orr, Scott A. Kofoed, Dwayne Westenskow, Michael B. Jaffe
  • Publication number: 20010029339
    Abstract: Apparatus and methods for non-invasively determining the cardiac output or pulmonary capillary blood flow of a patient using partial re-breathing techniques. The apparatus includes a substantially instantaneously adjustable deadspace volume for accommodating differences in sizes or breathing capacities of various patients. The apparatus may be constructed of inexpensive elements, including one or more two-way valves, which render the apparatus very simple to use and inexpensive so that the unit may be employed as a disposable product. The method of the invention includes estimating the cardiac output or pulmonary capillary blood flow of a patient based on partial pressure of alveolar CO2, rather than on the partial pressure of end tidal CO2, as previously practiced. A computer program for calculating the cardiac output or pulmonary capillary blood flow of a patient is also disclosed.
    Type: Application
    Filed: February 6, 2001
    Publication date: October 11, 2001
    Inventors: Joseph A. Orr, Scott A. Kofoed, Dwayne Westenskow, Michael B. Jaffe
  • Patent number: 6227196
    Abstract: Apparatus and methods for non-invasively determining the cardiac output or pulmonary capillary blood flow of a patient using partial re-breathing techniques. The apparatus includes a substantially instantaneously adjustable deadspace volume for accommodating differences in sizes or breathing capacities of various patients. The apparatus may be constructed of inexpensive elements, including one or more two-way valves, which render the apparatus very simple to use and inexpensive so that the unit may be employed as a disposable product. The method of the invention includes estimating the cardiac output or pulmonary capillary blood flow of a patient based on partial pressure of alveolar CO2 rather than on the partial pressure of end tidal CO2, as previously practiced. A computer program for calculating the cardiac output or pulmonary capillary blood flow of a patient is also disclosed.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: May 8, 2001
    Assignee: NTC Technology Inc.
    Inventors: Michael B. Jaffe, Joseph A. Orr, Scott A. Kofoed, Dwayne Westenskow
  • Patent number: 5906593
    Abstract: An endotracheal tube splitter and a method for removing an endotracheal tube are disclosed. The endotracheal tube splitter includes a handle portion, a cutting edge for cutting the endotracheal tube as it is withdrawn from a patient, and a support member for preventing the cutting edge from turning to either side and for maintaining the cutting edge at least a minimum desired distance from the face of the patient. The endotracheal tube splitter allows the more rapid replacement of the endotracheal tube, and allows a bronchoscope to be used as the guide for placing the tube.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: May 25, 1999
    Assignee: University of Utah Research Foundation
    Inventors: Patrick Schafer, Dwayne Westenskow, Fidel Silva
  • Patent number: 5873858
    Abstract: An endotracheal tube splitter and a method for removing an endotracheal tube are disclosed. The endotracheal tube splitter includes a handle portion, a cutting edge for cutting the endotracheal tube as it is withdrawn from a patient, and a support member for preventing the cutting edge from turning to either side and for maintaining the cutting edge at least a minimum desired distance from the face of the patient. The endotracheal tube splitter allows the more rapid replacement of the endotracheal tube, and allows a bronchoscope to be used as the guide for placing the tube.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: February 23, 1999
    Assignee: University of Utah Research Foundation
    Inventors: Patrick Schafer, Dwayne Westenskow, Fidel Silva