Patents by Inventor Raj J. Shah

Raj J. Shah 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 geometry
    Patent number: 8603185
    Abstract: A non-expandable stent and a method for implanting the stent are provided. The stent includes a generally tubular body having a lumen defined therethrough. The body includes a proximal portion having a curved portion configured for placement proximal to a sphincter. The body further includes a distal portion having retaining member extending outward from a proximal end of the distal portion. The retaining member is configured for placement distal to the sphincter and for engagement of the sphincter.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 10, 2013
    Assignees: Cook Medical Technologies LLC, The Regents of the University of Colorado
    Inventors: Raj J. Shah, Richard W. Ducharme
  • Stent Geometry
    Publication number: 20110224775
    Abstract: A non-expandable stent and a method for implanting the stent are provided. The stent includes a generally tubular body having a lumen defined therethrough. The body includes a proximal portion having a curved portion configured for placement proximal to a sphincter. The body further includes a distal portion having retaining member extending outward from a proximal end of the distal portion. The retaining member is configured for placement distal to the sphincter and for engagement of the sphincter.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 15, 2011
    Applicants: Wilson-Cook Medical Inc., The Regents of the University of Colorado, a body corporate
    Inventors: Raj J. Shah, Richard W. Ducharme