Patents by Inventor William Sweat

William Sweat 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: 20080041772
    Abstract: A density centrifuge blood processing system comprising a separation chamber rotating about a central rotation axis, the separation chamber having an outflow passage, a light source in optical communication with the density centrifuge blood processing system, the light source providing an incident light beam for illuminating an observation region and a viewing region on the outflow passage, a first detector for the separation chamber to detect light from the observation region, a second detector for the outflow passage, a computational apparatus distinguishing one or more phase boundaries in the observation region and distinguishing fluid composition in the viewing region as a function of light intensity received from the viewing region, and a controller regulating speed of at least one pump or of said separation chamber in response to signals from the computational apparatus.
    Type: Application
    Filed: July 6, 2007
    Publication date: February 21, 2008
    Applicant: GAMBRO BCT, INC.
    Inventors: William Sweat, Jeremy Kolenbrander, John R. Lindner
  • Publication number: 20080045394
    Abstract: A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of “spoiling” the image, “diffusing” the image, “edge detection”, “edge linking”, “region-based confirmation”, and “interface calculation”. “Spoiling” reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. “Diffusing” smoothes out small oscillations in the interface boundary, making the location of the interface more distinct. “Edge detection” computes the rate of change in pixel intensity, or. “Edge linking” connects adjacent maxima. “Region-based confirmation” creates a pseudo image of the regions that qualify as distinct. “Final edge calculation” uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.
    Type: Application
    Filed: July 2, 2007
    Publication date: February 21, 2008
    Applicant: GAMBRO BCT, INC.
    Inventors: Jeremy KOLENBRANDER, Aditya DALVI, Christopher FLETCHER, William SWEAT, John R. LINDNER
  • Patent number: 7072769
    Abstract: A blood component collection system with manipulation and optimization capabilities. In one embodiment, process parameters are derived from an input/configured predetermined blood component yield and which is based upon the maximization of at least one process parameter. Thereafter, the blood component collection procedure is performed with these derived process control parameters. In another embodiment, process parameters are derived from an input total procedure time from a maximized value for at least one of the other process control parameters so as to maximize blood component yield in this fixed time. Thereafter, the blood component collection procedure is performed with these derived parameters.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: July 4, 2006
    Assignee: Gambro, Inc.
    Inventors: Peter Fletcher-Haynes, William Sweat, Richard Judy, Scott Butzke, Kim Pemberton, Frank Corbin, III, Robert W. Langley, Steven Gage Urdahl, Christopher Fletcher
  • Publication number: 20060052949
    Abstract: A blood component collection system with manipulation and optimization capabilities. Process parameters are derived from an input/configured predetermined blood component yield and which is based upon the maximization of at least one process parameter. Thereafter, the blood component collection procedure is performed with these derived process control parameters. Also, process parameters are derived from an input total procedure time from a maximized value for at least one of the other process control parameters so as to maximize blood component yield in this fixed time. Thereafter, the blood component collection procedure is performed with these derived parameters.
    Type: Application
    Filed: November 15, 2005
    Publication date: March 9, 2006
    Applicant: GAMBRO INC
    Inventors: Peter FLETCHER-HAYNES, William SWEAT, Richard JUDY, Scott BUTZKE, Kim PEMBERTON, Frank CORBIN, Robert LANGLEY, Steven Urdahl, Christopher Fletcher
  • Publication number: 20030154108
    Abstract: A blood component collection system with data manipulation and/or optimization capabilities. In one embodiment, process parameters are derived from an input and/or configured predetermined blood component yield and which is based upon the maximization of at least one process parameter. Thereafter, the blood component separation and collection procedure is performed with these derived process control parameters. In another embodiment, process parameters are derived from an input total procedure time from a maximized value for at least one of the other process control parameters so as to maximize blood component yield in this fixed time. Thereafter, the blood component separation and collection procedure is performed with these derived parameters.
    Type: Application
    Filed: August 23, 2002
    Publication date: August 14, 2003
    Applicant: Gambro, Inc.
    Inventors: Peter Fletcher-Haynes, William Sweat, Frank Corbin, Robert Langley, Steven G. Urdahl, Richard Judy, Scott Butzke, Kim Pemberton, Christopher Fletcher
  • Publication number: 20010034614
    Abstract: A blood component collection system with manipulation and optimization capabilities. In one embodiment, process parameters are derived from an input/configured predetermined blood component yield and which is based upon the maximization of at least one process parameter. Thereafter, the blood component collection procedure is performed with these derived process control parameters. In another embodiment, process parameters are derived from an input total procedure time from a maximized value for at least one of the other process control parameters so as to maximize blood component yield in this fixed time. Thereafter, the blood component collection procedure is performed with these derived parameters.
    Type: Application
    Filed: March 1, 2001
    Publication date: October 25, 2001
    Inventors: Peter Fletcher-Haynes, William Sweat, Richard Judy, Scott Butzke, Kim Pemberton, Frank Corbin, Robert W. Langley, Steven Gage Urdahl, Christopher Fletcher