Patents by Inventor George Du

George Du 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).

  • Single continuous piece prosthetic tubular aortic conduit and method for manufacturing the same
    Patent number: 8388679
    Abstract: A prosthetic aortic conduit for replacing a root portion of an aorta is provided. The conduit comprises a continuous tubular conduit along a substantially common axis. A portion of the tubular conduit does not substantially deform in a longitudinal direction and has resilient means which allow said another portion of the conduit to be expandable in a lateral direction. The portion that is able to deform laterally mimics the function of the sinuses of Valsalva. The method of manufacturing such a conduit comprises the steps of having a continuous weave of rows of yarn or the equivalent with a change in tightness of the rows so that in some portion of the conduit it is expandable in the lateral direction and in some portion of the conduit it is expandable in the longitudinal direction.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: March 5, 2013
    Assignee: Maquet Cardiovascular LLC
    Inventor: George Du
  • Woven Prosthesis and Method for Manufacturing the Same
    Publication number: 20120165918
    Abstract: A woven prosthesis, such as a woven vascular graft, woven from warp and weft yarns. Velour warp yarns forming the prosthesis are selectively incorporated into a base layer of the prosthesis so as to provide a bulbous section without compromising the porosity of the prosthesis.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 28, 2012
    Applicant: MAQUET CARDIOVASCULAR LLC
    Inventor: George DU
  • Single continuous piece prosthetic tubular aortic conduit and method for manufacturing the same
    Publication number: 20110112620
    Abstract: A prosthetic aortic conduit for replacing a root portion of an aorta is provided. The conduit comprises a continuous tubular conduit along a substantially common axis. A portion of the tubular conduit does not substantially deform in a longitudinal direction and has resilient means which allow said another portion of the conduit to be expandable in a lateral direction. The portion that is able to deform laterally mimics the function of the sinuses of Valsalva. The method of manufacturing such a conduit comprises the steps of having a continuous weave of rows of yarn or the equivalent with a change in tightness of the rows so that in some portion of the conduit it is expandable in the lateral direction and in some portion of the conduit it is expandable in the longitudinal direction.
    Type: Application
    Filed: June 8, 2010
    Publication date: May 12, 2011
    Inventor: George Du
  • Single continuous piece prosthetic tubular aortic conduit and method for manufacturing the same
    Publication number: 20080177379
    Abstract: A prosthetic aortic conduit for replacing a root portion of an aorta is provided. The conduit comprises a continuous tubular conduit along a substantially common axis. A portion of the tubular conduit does not substantially deform in a longitudinal direction and has resilient means which allow said another portion of the conduit to be expandable in a lateral direction. The portion that is able to deform laterally mimics the function of the sinuses of Valsalva. The method of manufacturing such a conduit comprises the steps of having a continuous weave of rows of yarn or the equivalent with a change in tightness of the rows so that in some portion of the conduit it is expandable in the lateral direction and in some portion of the conduit it is expandable in the longitudinal direction.
    Type: Application
    Filed: January 19, 2007
    Publication date: July 24, 2008
    Inventor: George Du