Patents by Inventor Christopher William Widenhouse

Christopher William Widenhouse 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).

  • Distal Protection Filter with Improved Wall Apposition
    Publication number: 20090204143
    Abstract: In accordance with the present invention, a distal protection and embolic material retrieval device with improved apposition to both large and small vessel walls of varying geometries for enhancing the filtering of embolic material during intravascular procedures while allowing for the passage of blood is provided. The device includes a filter basket designed to maximize apposition of the filtering portion to that of the vessel wall and may include struts which provide circumferential support to the filtering membrane and thereby minimizing or eliminating in-folding of the filter basket. Thin film materials may also be utilized for the filtering membrane of the filter basket. In addition one can incorporate biological and/or pharmaceutical agents in combination with the present invention.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 13, 2009
    Inventors: Jin S. Park, Huisun Wang, Christopher William Widenhouse
  • Friction reducing lubricant for stent loading and stent delivery systems
    Patent number: 7309349
    Abstract: A system for loading self-expanding stents into a stent delivery system that comprises a lubricious coating on one or more components to substantially reduce the frictional forces associated with loading stents. The stents may be bare or coated stents. The lubricious coating comprises glycerol.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: December 18, 2007
    Assignee: Cordis Corporation
    Inventors: Karen Paulette Jackson, Christopher William Widenhouse
  • Self-expanding stent delivery system
    Patent number: 7169170
    Abstract: A self-expanding stent delivery apparatus having a sheath comprising a hard and lubricious coating for the safe, effective and accurate deployment of self-expanding stents. The sheath comprises an inner layer of pyrolytic carbon or other similar substance which prevents the stent from becoming embedded. The inner layer is also lubricious. This combination of properties allows for easier deployment and reduced profile.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: January 30, 2007
    Assignee: Cordis Corporation
    Inventor: Christopher William Widenhouse
  • Method system for loading a self-expanding stent
    Patent number: 6859986
    Abstract: A system for loading self-expanding stents into a stent delivery system that comprises a lubricious coating on one or more components to substantially reduce the frictional forces associated with loading stents. The stents may be bare or coated stents. The lubricious coating comprises a solution of Dow Corning® MDX4-4159 Fluid 50% Medical Grade Dispersion.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: March 1, 2005
    Assignee: Cordis Corporation
    Inventors: Karen Paulette Jackson, Jonathan George Parker, Christopher William Widenhouse
  • Friction reducing agent for loading a self-expanding stent
    Publication number: 20040167603
    Abstract: A system for loading self-expanding stents into a stent delivery system that comprises a lubricious coating on one or more components to substantially reduce the frictional forces associated with loading stents. The stents may be bare or coated stents. The lubricious coating comprises a solution of Dow Corning® MDX4-4159 Fluid 50% Medical Grade Dispersion.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 26, 2004
    Inventors: Karen Paulette Jackson, Jonathan George Parker, Christopher William Widenhouse
  • Friction reducing lubricant for stent loading and stent delivery systems
    Publication number: 20040148007
    Abstract: A system for loading self-expanding stents into a stent delivery system that comprises a lubricious coating on one or more components to substantially reduce the frictional forces associated with loading stents. The stents may be bare or coated stents. The lubricious coating comprises glycerol.
    Type: Application
    Filed: January 23, 2003
    Publication date: July 29, 2004
    Inventors: Karen Paulette Jackson, Christopher William Widenhouse
  • Self-expanding stent delivery system
    Publication number: 20030163193
    Abstract: A self-expanding stent delivery apparatus having a sheath comprising a hard and lubricious coating for the safe, effective and accurate deployment of self-expanding stents. The sheath comprises an inner layer of pyrolytic carbon or other similar substance which prevents the stent from becoming embedded. The inner layer is also lubricious. This combination of properties allows for easier deployment and reduced profile.
    Type: Application
    Filed: February 22, 2002
    Publication date: August 28, 2003
    Inventor: Christopher William Widenhouse