Patents by Inventor Shogo Nishi

Shogo Nishi 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).

  • Patent number: 8591782
    Abstract: A stent comprising a tubular stent matrix of which diameter is extendable and a flexible polymer layer covering the stent matrix. The polymer layer is closely attached to and covers the entire surface of the stent matrix. Since the flexible polymer layer closely covers the entire surface of the stent matrix not only the outer periphery of the stent matrix, the stent has no problem of causing allergic to metal, stimulus of tissues due to metal, and rust development. Since the inner periphery of the stent is a flat and smooth surface covered by the polymer layer without convexes and concaves, the formation of thrombus can be inhibited well. There is no problem of drift between the polymer layer and the stent matrix, thereby maintaining the positional relationship between the stent matrix and the polymer layer before and after the expansion of the stent.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: November 26, 2013
    Assignees: National Cerebral and Cardiovascular Center, Japan Stent Technology Co., Ltd.
    Inventors: Yasuhide Nakayama, Shogo Nishi, Yasushi Nemoto, Yoshihiro Okamoto
  • Publication number: 20060036311
    Abstract: A stent comprising a tubular stent matrix of which diameter is extendable and a flexible polymer layer covering the stent matrix. The polymer layer is closely attached to and covers the entire surface of the stent matrix. Since the flexible polymer layer closely covers the entire surface of the stent matrix not only the outer periphery of the stent matrix, the stent has no problem of causing allergic to metal, stimulus of tissues due to metal, and rust development. Since the inner periphery of the stent is a flat and smooth surface covered by the polymer layer without convexes and concaves, the formation of thrombus can be inhibited well. There is no problem of drift between the polymer layer and the stent matrix, thereby maintaining the positional relationship between the stent matrix and the polymer layer before and after the expansion of the stent.
    Type: Application
    Filed: August 20, 2003
    Publication date: February 16, 2006
    Inventors: Yasuhide Nakayama, Shogo Nishi, Yasushi Nemoto, Yoshihiro Okamoto