Patents by Inventor Yusuf Khan

Yusuf Khan 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).

  • Biocompatible, biodegradable polymer-based, lighter than or light as water scaffolds for tissue engineering and methods for preparation and use thereof
    Patent number: 8137972
    Abstract: Scaffolds for tissue engineering prepared from biocompatible, biodegradable polymer-based, lighter than or light as water microcarriers and designed for cell culturing in vitro in a rotating bioreactor are provided. Methods for preparation and use of these scaffolds as tissue engineering devices are also provided.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: March 20, 2012
    Assignees: Drexel University, The Wistar Institute, The Trustees Of The University of Pennsylvania
    Inventors: Cato T. Laurencin, Solomon R. Pollack, Elliot Levine, Edward Botchwey, Helen H. Lu, Mohammed Yusuf Khan
  • Blood flow diverters for the treatment of intracranial aneurysms
    Publication number: 20070060994
    Abstract: A blood flow diverter device for treatment of intracranial aneurysms, including a porous tubular member having a central portion and two ends. The member is of sufficient flexibility and body compatibility to be placed in proximity within an intracranial aneurysm. The central portion of the tubular member has a sufficiently decreased porosity to block blood flow from entering through the aneurysm. This is done by one of three methods: (1) the central portion of the member can be compressed to decrease porosity and heat set to hold the compression; (2) the angle of the fibers can be altered if the tubular member is made from a braided fibers; or (3) a monomeric coating can be formed on the central portion in an amount sufficient to decrease the porosity of the central portion upon polymerization of the monomeric coating. In the third embodiment a polymerization initiator is provided for polymerizing the monomeric coating upon command to cause the decreased porosity to block the blood flow.
    Type: Application
    Filed: September 12, 2005
    Publication date: March 15, 2007
    Inventors: Riad Gobran, Ajay Wakhloo, Yusuf Khan
  • Blood flow diverters for the treatment of intracranial aneurysms
    Publication number: 20050283220
    Abstract: A blood flow diverter device for treatment of intracranial aneurysms, including a porous tubular member having a central portion and two ends. The member is of sufficient flexibility and body compatibility to be placed in proximity within an intracranial aneurysm. The central portion of the tubular member has a sufficiently decreased porosity to block blood flow from entering through the aneurysm. This is done by one of three methods: (1) the central portion of the member can be compressed to decrease porosity and heat set to hold the compression; (2) the angle of the fibers can be altered if the tubular member is made from a braided fibers; or (3) a monomeric coating can be formed on the central portion in an amount sufficient to decrease the porosity of the central portion upon polymerization of the monomeric coating. In the third embodiment a polymerization initiator is provided for polymerizing the monomeric coating upon command to cause the decreased porosity to block the blood flow.
    Type: Application
    Filed: June 22, 2004
    Publication date: December 22, 2005
    Inventors: Riad Gobran, Ajay Wakhloo, Yusuf Khan
  • Biocompatible, biodegradable polymer-based, lighter than or light as water scaffolds for tissue engineering and methods for preparation and use thereof
    Publication number: 20020155559
    Abstract: Scaffolds for tissue engineering prepared from biocompatible, biodegradable polymer-based, lighter than or light as water microcarriers and designed for cell culturing in vitro in a rotating bioreactor are provided. Methods for preparation and use of these scaffolds as tissue engineering devices are also provided.
    Type: Application
    Filed: January 17, 2002
    Publication date: October 24, 2002
    Inventors: Cato T. Laurencin, Solomon R. Pollack, Elliot Levine, Edward Botchwey, Helen H. Lu, Mohammed Yusuf Khan