Patents by Inventor Steven Z-H Wu

Steven Z-H Wu 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).

  • Stent with anti-thrombogenic coating
    Patent number: 6602287
    Abstract: A glycocalyx-like material is applied to a stent in order to mimic the outer surface of the cells lining arteries and veins to prevent thrombogenesis. The glycocalyx material is applied over a base layer of a fluorocarbon that is applied directly to the stent surfaces.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: August 5, 2003
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Deborra Sanders Millare, Steven Z-H Wu
  • Coated stent
    Publication number: 20010037145
    Abstract: A pharmacological agent is applied to a stent in dry, micronized form over a sticky base coating. A membrane forming polymer, selected for its ability to allow the diffusion of the pharmacological agent therethrough, is applied over the entire stent.
    Type: Application
    Filed: June 21, 2001
    Publication date: November 1, 2001
    Inventors: Judy A. Guruwaiya, Deborra Sanders Millare, Steven Z-H Wu
  • Method of layering a three-coated stent using pharmacological and polymeric agents
    Patent number: 6251136
    Abstract: A pharmacological agent is applied to a stent in dry, micronized form over a sticky base coating. A membrane forming polymer, selected for its ability to allow the diffusion of the pharmacological agent therethrough, is applied over the entire stent. More specifically, a stent, typically a metal stent, has a layer of a sticky material applied to selected surfaces of the stent. A pharmacological agent is layered on the sticky material and a membrane forming a polymer coating is applied over the pharmacological agent. The membrane is formed from a polymer that permits diffusion of the pharmacological agent over a predetermined time period.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: June 26, 2001
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Judy A. Guruwaiya, Deborra Sanders Millare, Steven Z-H Wu