Patents by Inventor Jichao Sun

Jichao Sun 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: 20090030502
    Abstract: A stent graft adapted to telescopically receive a secondary stent graft characterized in that the stent graft comprises at least one socket communicating with at least one opening in the stent graft. The at least one socket comprises an elastic wall that forms a lumen with a stent at least partially encased within the wall. The socket can be adapted for use with stent grafts for implantantation in an aneurysm.
    Type: Application
    Filed: June 11, 2008
    Publication date: January 29, 2009
    Inventors: Jichao Sun, Alan R. Leewood
  • Publication number: 20080195193
    Abstract: A balloon expandable covered stent consists of a plurality of primary stent units, each having an undulating shape defined by a series of primary strut members converging to form peaks and valleys. The primary stent units are assembled into a single cylindrical structure of the stent by connecting corresponding peaks with secondary strut members. Generally, surfaces of the stent may then coated with a polymeric, hyper-elastic material, preferably Thoralon®, by pre-expanding the stent prior to coating.
    Type: Application
    Filed: January 30, 2008
    Publication date: August 14, 2008
    Applicant: Cook Incorporated
    Inventors: James D. Purdy, Richard A. Swift, Blayne A. Roeder, Alan R. Leewood, Jichao Sun
  • Publication number: 20080183268
    Abstract: A coated implantable medical device 10 includes a structure 12 adapted for introduction into the vascular system, esophagus, trachea, colon, biliary tract, or urinary tract; at least one coating layer 16 posited on one surface of the structure; and at least one layer 18 of a bioactive material posited on at least a portion of the coating layer 16, where the coating layer 16 provides for the controlled release of the bioactive material from the coating layer. In addition, at least one porous layer 20 may be posited over the bioactive material layer 18, where the porous layer includes a polymer and provides for the controlled release of the bioactive material therethrough. Preferably, the structure 12 is a coronary stent. The porous layer 20 includes a polymer applied preferably by vapor or plasma deposition and provides for a controlled release of the bioactive material.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 31, 2008
    Applicants: Cook Incorporated, MED Institute, Inc.
    Inventors: Brian L. Bates, Anthony O. Ragheb, Neal E. Fearnot, William D. Voorhees, Thomas G. Kozma, David D. Grewe, Darin G. Schaeffer, JiChao Sun
  • Publication number: 20080175980
    Abstract: Methods for coating medical devices for implantation within a body vessel are provided comprising providing a cylindrical container, placing a medical device inside the cylindrical container, and applying a polymer in liquid form inside the container.
    Type: Application
    Filed: October 23, 2007
    Publication date: July 24, 2008
    Inventor: Jichao Sun
  • Publication number: 20070237973
    Abstract: This invention is directed to graft materials for implanting, transplanting, replacing, or repairing a part of a patient and to methods of making the graft materials. The present invention is also directed to stent grafts and endoluminal prostheses formed of the graft materials. More specifically, the present invention is a graft material which includes porous polymeric sheet, extracellular matrix material (ECM) disposed on at least a portion of the porous polymeric sheet and at least one polymer layer disposed on at least a portion of the ECM. The ECM may be in a gel form. The polymeric sheet and the polymer layer may be made from foam material and may comprise a polyurethane urea and a surface modifying agent such as siloxane.
    Type: Application
    Filed: February 20, 2007
    Publication date: October 11, 2007
    Inventors: James Purdy, David Grewe, Kurt Dierking, Lal Ninan, Jichao Sun
  • Publication number: 20070010874
    Abstract: A stent graft (10) has a tubular body of a biocompatible material and a side arm (20) fastened to the tubular body. A tubular extension piece (24) is sealingly joined to the end of the side arm and extends from it. It can be joined with adhesive or stitching. The extension piece can be formed from an elastomeric biocompatible material such as Thoralon™. The extension piece can have a resilient reinforcement 44 embedded into it and extending longitudinally. The extension piece is tucked back into the side arm during deployment of the stent graft into a body lumen.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 11, 2007
    Applicant: MED Institute, Inc.
    Inventor: Jichao Sun
  • Publication number: 20060161243
    Abstract: A variable curvature stent limb is disclosed herein. A stent derived from a plurality of these variable curvature stent limbs may be highly compressible, such that it is compatible with a low-profile delivery device. This stent may be useful over a wider range of body vessel diameters and may possess a greater fatigue life, since this stent may provide a more controlled constant radial force.
    Type: Application
    Filed: December 8, 2005
    Publication date: July 20, 2006
    Applicant: Cook Group Patent Office
    Inventors: Neal Fearnot, Blayne Roeder, Alan Leewood, Jichao Sun
  • Publication number: 20050273155
    Abstract: An endoluminal device comprises a stent and a tubular graft supported by the stent. The graft has a proximal and a distal opening and comprises a synthetic material and a bioremodelable material. The bioremodelable material is disposed on an exterior surface in at least one band adjacent at least one of the proximal and distal openings.
    Type: Application
    Filed: March 30, 2005
    Publication date: December 8, 2005
    Inventors: Clinton Bahler, Michael DeBruyne, Neal Fearnot, Alan Leewood, Jason Mead, Thomas Osborne, Jichao Sun