Patents by Inventor David A. Shumaker

David A. Shumaker 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: 20200022807
    Abstract: A method of forming an electrospun prosthetic valve includes utilizing a rotatable and angularly adjustable prosthetic valve mold. The prosthetic valve mold is set to a first angle. The prosthetic valve mold is rotated at a first rotational velocity and a first layer of electrospun fibers is deposited on the prosthetic valve mold. The prosthetic valve mold is stopped and a frame is positioned over the first layer. The prosthetic valve mold is set to a second angle. The prosthetic valve mold is rotated at a second velocity and a second layer of electrospun fibers is deposited on an outer surface of the first layer and an outer surface of the frame.
    Type: Application
    Filed: July 23, 2019
    Publication date: January 23, 2020
    Applicant: Medtronic, Inc.
    Inventors: Evaldas Karciauskas, Salvador Avelar, Todd Grodrian, Mike Krivoruchko, Mingfei Chen, Christopher Storment, David A. Shumaker, Mark M. Wegner, Joseph A. Traina
  • Patent number: 8709465
    Abstract: The present disclosure in a broad aspect provides for diazeniumdiolated phosphorylcholine polymers and associated methods for achieving nitric oxide release. The present polymers have superior biocompatibility and are useful for coating or fabricating medical devices such as a vascular stent.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: April 29, 2014
    Assignee: Medtronic Vascular, Inc.
    Inventors: Mingfei Chen, David Shumaker, Peiwen Cheng, Kishore Udipi
  • Patent number: 8182830
    Abstract: Described herein are hydrogen sulfide (H2S) generating polymers and polymer systems suitable for coating or forming medical devices and methods for making and using the same. More specifically, described are H2S generating polymers comprising at least one thioamide group. The H2S generating polymers can provide controlled site-specific release of H2S once implanted at or within the target surgical site by hydrolysis of the thioamide group in physiological media. The H2S generating polymers can be coated onto a medical device, formed into a medical device or combined with one or more other polymers to form a polymer system. Also described are methods of treating restenosis and inflammation and promoting vasodilation utilizing such medical devices.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: May 22, 2012
    Assignee: Medtronic Vascular, Inc.
    Inventors: Mingfei Chen, Christopher Storment, David Shumaker
  • Publication number: 20110165216
    Abstract: Described herein are hydrogen sulfide (H2S) generating polymers and polymer systems suitable for coating or forming medical devices and methods for making and using the same. More specifically, described are H2S generating polymers comprising at least one thioamide group. The H2S generating polymers can provide controlled site-specific release of H2S once implanted at or within the target surgical site by hydrolysis of the thioamide group in physiological media. The H2S generating polymers can be coated onto a medical device, formed into a medical device or combined with one or more other polymers to form a polymer system. Also described are methods of treating restenosis and inflammation and promoting vasodilation utilizing such medical devices.
    Type: Application
    Filed: January 5, 2010
    Publication date: July 7, 2011
    Applicant: Medtronic Vascular, Inc.
    Inventors: Mingfei Chen, Christopher Storment, David Shumaker
  • Publication number: 20100262238
    Abstract: The present disclosure in a broad aspect provides for diazeniumdiolated phosphorylcholine polymers and associated methods for achieving nitric oxide release. The present polymers have superior biocompatibility and are useful for coating or fabricating medical devices such as a vascular stent.
    Type: Application
    Filed: April 13, 2009
    Publication date: October 14, 2010
    Applicant: Medtronic Vascular, Inc.
    Inventors: Mingfei Chen, David Shumaker, Peiwen Cheng, Kishore Udipi
  • Patent number: 7466441
    Abstract: Apparatus and methods for distributing print jobs. A print job is generated at an application node of a network, and has associated therewith print parameters. The print job is routed to a distribution node on the network. The parameters are then parsed from the generated print job and the print job parameterized with predetermined metrics that are a function of at least one of the parsed parameters. The parameterized print job is then routed to a destination device on a destination node on the network.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: December 16, 2008
    Assignee: Electronics for Imaging, Inc.
    Inventors: Michael Barry, Jeffrey Pitts Dockman, Kevin John O'Neill, Jr., Robert Gregory Pennington, Michael David Raines, Matthew David Shumaker, Elliot Neal Tompkins
  • Patent number: 7233409
    Abstract: Apparatus and methods for distributing print jobs. A print job is generated at an application node of a network, and has associated therewith print parameters. The print job is routed to a distribution node on the network. The parameters are then parsed from the generated print job and the print job parameterized with predetermined metrics that are a function of at least one of the parsed parameters. The parameterized print job is then routed to a destination device on a destination node on the network.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: June 19, 2007
    Assignee: Electronics For Imaging, Inc.
    Inventors: Michael Barry, Jeffrey Pitts Dockman, Kevin John O'Neill, Jr., Robert Gregory Pennington, Michael David Raines, Matthew David Shumaker, Elliot Neal Tompkins
  • Patent number: 7099027
    Abstract: Method and apparatus for distributing print jobs. A print job is generated at an application node of a network, and has associated therewith print parameters. The print job is routed to a distribution node on the network. The parameters are then parsed from the generated print job and the print job parameterized with predetermined metrics that are a function of at least one of the parsed parameters. The parameterized print job is then routed to a destination device on a destination node the network.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: August 29, 2006
    Assignee: Electronics for Imaging, Inc.
    Inventors: Michael Barry, Jeffrey Pitts Dockman, Kevin John O'Neill, Jr., Robert Gregory Pennington, Michael David Raines, Matthew David Shumaker, Elliot Neal Tompkins