Patents by Inventor Kartik Trehan

Kartik Trehan 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).

  • Orthopedic screw system
    Patent number: 8343200
    Abstract: An orthopedic screw system. The screw system comprises an outer member and an inner screw. The outer member has a longitudinal inner channel that defines an interior sidewall and is provided with screw threads on its exterior and interior sidewalls. An inner screw has threads constructed and arranged to engage with those on the interior sidewall, such that the inner screw may be secured within the inner channel. When secured within the inner channel, at least a portion of the length of the inner screw extends beyond the outer member. Methods of installing the orthopedic screw system into osteoporotic or otherwise weakened bone are also disclosed.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: January 1, 2013
    Assignee: The Johns Hopkins University
    Inventors: A. Jay Khanna, Isador H. Lieberman, Karthikeyan Ponnusamy, Gaurav Gupta, Sravisht Iyer, Alexander Hui, Christopher Yu, Kartik Trehan
  • Orthopedic Screw System
    Publication number: 20070213732
    Abstract: An orthopedic screw system. The screw system comprises an outer member and an inner screw. The outer member has a longitudinal inner channel that defines an interior sidewall and is provided with screw threads on its exterior and interior sidewalls. An inner screw has threads constructed and arranged to engage with those on the interior sidewall, such that the inner screw may be secured within the inner channel. When secured within the inner channel, at least a portion of the length of the inner screw extends beyond the outer member. Methods of installing the orthopedic screw system into osteoporotic or otherwise weakened bone are also disclosed.
    Type: Application
    Filed: March 12, 2007
    Publication date: September 13, 2007
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: A. Jay Khanna, Isador H. Lieberman, Karthikeyan Ponnusamy, Gaurav Gupta, Sravisht Iyer, Alexander Hui, Christopher Yu, Kartik Trehan