Patents by Inventor Srilakshmi Vishnubholta

Srilakshmi Vishnubholta 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).

  • Bone screw assembly for limited angulation
    Patent number: 8702761
    Abstract: A limited angulation bone screw assembly adapted to couple a spinal rod with a vertebra including a bone screw, a bushing and a housing. The pedicle screw having a shaft and an upper head portion, the upper head portion comprising a spherical surface with flats disposed on opposite sides of the upper head portion. The bushing comprising a lower rounded surface for mating with the spherical surface and flats of the upper head portion to restrict the angular movement of the bone screw. The coupled bone screw and bushing are inserted into the housing in a first orientation and then rotated to a second orientation to secure the coupled bone screw and bushing to complete the housing.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: April 22, 2014
    Assignee: Alphatec Spine, Inc.
    Inventors: Benjamin Walter Wang, Srilakshmi Vishnubholta