Patents by Inventor Narendren Renganathan

Narendren Renganathan 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).

  • Expandable Ring Intervertebral Fusion Device
    Publication number: 20170172754
    Abstract: An expandable tube having a substantially semicircular unexpanded shape is inserted into the disc space after the disc material has been removed therefrom. A plurality of expandable lockable rings are passed over this tube in their unexpanded states and positioned along the anterior edge of the endplates. The tube is then expanded, thereby forcing the rings to expand. The rings hold their final expanded configuration via a one-way locking mechanism. Once sufficient distraction is achieved and the rings locked, the tube is collapsed and removed, thereby leaving the expanded, locked rings behind to support the disc space.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 22, 2017
    Applicant: DePuy Synthes Products, Inc.
    Inventors: William Frasier, Narendren Renganathan, Glen Presbrey, Michael A. Fisher, John Riley Hawkins
  • Expandable ring intervertebral fusion device
    Patent number: 9615933
    Abstract: An expandable tube having a substantially semicircular unexpanded shape is inserted into the disc space after the disc material has been removed therefrom. A plurality of expandable lockable rings are passed over this tube in their unexpanded states and positioned along the anterior edge of the endplates. The tube is then expanded, thereby forcing the rings to expand. The rings hold their final expanded configuration via a one-way locking mechanism. Once sufficient distraction is achieved and the rings locked, the tube is collapsed and removed, thereby leaving the expanded, locked rings behind to support the disc space.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: April 11, 2017
    Assignee: DePuy Synthes Products, Inc.
    Inventors: William Frasier, Narendren Renganathan, Glen Presbrey, Michael A Fisher, John Riley Hawkins
  • Expandable Ring Intervertebral Fusion Device
    Publication number: 20110066192
    Abstract: An expandable tube having a substantially semicircular unexpanded shape is inserted into the disc space after the disc material has been removed therefrom. A plurality of expandable lockable rings are passed over this tube in their unexpanded states and positioned along the anterior edge of the endplates. The tube is then expanded, thereby forcing the rings to expand. The rings hold their final expanded configuration via a one-way locking mechanism. Once sufficient distraction is achieved and the rings locked, the tube is collapsed and removed, thereby leaving the expanded, locked rings behind to support the disc space.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 17, 2011
    Inventors: William Frasier, Narendren Renganathan, Glen Presbrey, Michael A. Fisher, John Riley Hawkins