Patents by Inventor Anna G. U. Brantley

Anna G. U. Brantley 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).

  • Method and apparatus for delivering material to a desired location
    Patent number: 6214012
    Abstract: A method and apparatus for the effective delivery of a material, such as cement, to a desired location in a human. In one embodiment of the invention, a bone screw, including a head portion, a cannulated slotted shaft portion and a tip portion, includes an injection site for removably attaching an injection device, such as a syringe. Since the shaft portion is slotted, injected material flows from the cannulated shaft and is able to exit into surrounding tissue through the slot in the shaft.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: April 10, 2001
    Assignee: Harrington Arthritis Research Center
    Inventors: Robert R. Karpman, Thomas M. Hansen, Anna G. U. Brantley