Patents by Inventor Douglas Kirven

Douglas Kirven 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: 7887495
    Abstract: A removable protective covering is provided that can be secured about an external fixation device on the upper or lower extremity of a patient. The covering includes a fabric form that is sized and configured to accommodate varying sizes of external fixation devices and uses readily engageable/releasable closure elements or fasteners to securely engage the covering about the fixator and the extremity. A drawstring closure may be provided at the open ends of the covering to tighten the end about the patient's limb. Ventilation features may be provided including vents with and without additional devices to generate air flow through the covering. The covering for a lower extremity fixation device may be configured for removably attachment to a foot plate and the foot plate itself may be configured to support or attach to the fixation device.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: February 15, 2011
    Inventors: Lawrence M. Boyd, Douglas Kirven, Samuel B. Adams
  • Publication number: 20090105621
    Abstract: A removable protective covering is provided that can be secured about an external fixation device on the upper or lower extremity of a patient. The covering includes a fabric form that is sized and configured to accommodate varying sizes of external fixation devices and uses readily engageable/releasable closure elements or fasteners to securely engage the covering about the fixator and the extremity. A drawstring closure may be provided at the open ends of the covering to tighten the end about the patient's limb. Ventilation features may be provided including vents with and without additional devices to generate air flow through the covering. The covering for a lower extremity fixation device may be configured for removably attachment to a foot plate and the foot plate itself may be configured to support or attach to the fixation device.
    Type: Application
    Filed: October 17, 2008
    Publication date: April 23, 2009
    Inventors: Lawrence M. Boyd, Douglas Kirven, Samuel B. Adams, JR.
  • Patent number: 6843145
    Abstract: A cardiac phantom is provided for simulating a dynamic cardiac ventricle. The phantom comprises two concentrically-disposed, fluid-tight, flexible membranes defining a closed space between the walls of the membranes. A pump is operatively connected to the inner membrane for reciprocally delivering a volume of fluid to the inner membrane to inflate and deflate both membranes in simulating systole and diastole of a heart. A medium is disposed within the closed space defined between the walls of the membranes for maintaining a uniform distance between the walls of the membranes during inflation and deflation. The phantom is provided for evaluation of medical imaging systems. A method, computer system and a computer-readable medium are also provided for controlling the phantom.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: January 18, 2005
    Assignee: Data Spectrum Corporation
    Inventors: Ronald J. Jaszczak, Paul Douglas Kirven, Timothy Warren Perry
  • Publication number: 20030220718
    Abstract: A cardiac phantom is provided for simulating a dynamic cardiac ventricle. The phantom comprises two concentrically-disposed, fluid-tight, flexible membranes defining a closed space between the walls of the membranes. A pump is operatively connected to the inner membrane for reciprocally delivering a volume of fluid to the inner membrane to inflate and deflate both membranes in simulating systole and diastole of a heart. A medium is disposed within the closed space defined between the walls of the membranes for maintaining a uniform distance between the walls of the membranes during inflation and deflation. The phantom is provided for evaluation of medical imaging systems. A method, computer system and a computer-readable medium are also provided for controlling the phantom.
    Type: Application
    Filed: March 14, 2003
    Publication date: November 27, 2003
    Inventors: Ronald J. Jaszczak, Paul Douglas Kirven, Timothy Warren Perry
  • Publication number: 20030213317
    Abstract: A cardiac phantom is provided for simulating a dynamic cardiac ventricle. The phantom comprises two concentrically-disposed, fluid-tight, flexible membranes defining a closed space between the walls of the membranes. A pump is operatively connected to the inner membrane for reciprocally delivering a volume of fluid to the inner membrane to inflate and deflate both membranes in simulating systole and diastole of a heart. A medium is disposed within the closed space defined between the walls of the membranes for maintaining a uniform distance between the walls of the membranes during inflation and deflation. The phantom is provided for evaluation of medical imaging systems. A method, computer system and a computer-readable medium are also provided for controlling the phantom.
    Type: Application
    Filed: March 14, 2003
    Publication date: November 20, 2003
    Inventors: Ronald J. Jaszczak, Paul Douglas Kirven, Timothy Warren Perry
  • Patent number: 6629469
    Abstract: A cardiac phantom is provided for simulating a dynamic cardiac ventricle. The phantom comprises two concentrically-disposed, fluid-tight, flexible membranes defining a closed space between the walls of the membranes. A pump is operatively connected to the inner membrane for reciprocally delivering a volume of fluid to the inner membrane to inflate and deflate both membranes in simulating systole and diastole of a heart. A medium is disposed within the closed space defined between the walls of the membranes for maintaining a uniform distance between the walls of the membranes during inflation and deflation. The phantom is provided for evaluation of medical imaging systems. A method, computer system and a computer-readable medium are also provided for controlling the phantom.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: October 7, 2003
    Assignee: Data Spectrum Corporation
    Inventors: Ronald J. Jaszczak, Paul Douglas Kirven, Timothy Warren Perry
  • Publication number: 20020178845
    Abstract: A cardiac phantom is provided for simulating a dynamic cardiac ventricle. The phantom comprises two concentrically-disposed, fluid-tight, flexible membranes defining a closed space between the walls of the membranes. A pump is operatively connected to the inner membrane for reciprocally delivering a volume of fluid to the inner membrane to inflate and deflate both membranes in simulating systole and diastole of a heart. A medium is disposed within the closed space defined between the walls of the membranes for maintaining a uniform distance between the walls of the membranes during inflation and deflation. The phantom is provided for evaluation of medical imaging systems. A method, computer system and a computer-readable medium are also provided for controlling the phantom.
    Type: Application
    Filed: June 5, 2001
    Publication date: December 5, 2002
    Inventors: Ronald J. Jaszczak, Paul Douglas Kirven, Timothy Warren Perry