Patents by Inventor Charles Theofilis

Charles Theofilis 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 cage
    Patent number: 9539107
    Abstract: An apparatus supports the spine between vertebrae and promotes spinal fusion. The apparatus generally includes a first supporting member, a second support member, and an expansion member. The first support member has a first longitudinal passage extending therethrough, a first supporting end configured to engage tissue, and a rack configured to engage a tool. The second supporting member contains a second longitudinal passage extending therethrough and a second supporting end configured to engage tissue. The second longitudinal passage is dimensioned to receive at least a portion of the first supporting member. The first and second supporting members are configured to move with respect to each other. The expansion member is removably positioned between the first and second supporting members and is adapted to maintain the first and second supporting members in a fixed relative position.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: January 10, 2017
    Assignee: K2M, Inc.
    Inventors: Charles Theofilis, Todd M. Wallenstein, Adam Wassinger, Larry McClintock, Kevin R. Strauss
  • EXPANDABLE CAGE
    Publication number: 20140207238
    Abstract: An apparatus supports the spine between vertebrae and promotes spinal fusion. The apparatus generally includes a first supporting member, a second support member, and an expansion member. The first support member has a first longitudinal passage extending therethrough, a first supporting end configured to engage tissue, and a rack configured to engage a tool. The second supporting member contains a second longitudinal passage extending therethrough and a second supporting end configured to engage tissue. The second longitudinal passage is dimensioned to receive at least a portion of the first supporting member. The first and second supporting members are configured to move with respect to each other. The expansion member is removably positioned between the first and second supporting members and is adapted to maintain the first and second supporting members in a fixed relative position.
    Type: Application
    Filed: February 27, 2014
    Publication date: July 24, 2014
    Inventors: Charles Theofilis, Todd M. Wallenstein, Adam Wassinger, Larry McClintock, Kevin R. Strauss