Patents by Inventor Stephen L. Tatar

Stephen L. Tatar 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).

  • Patent number: 8128670
    Abstract: A biocompatible surgical fastener, comprising a sleeve and a screw or a pin, which expands when it is implanted in a patient. The sleeve is first implanted in a pre-drilled hole in the operating area of a patient, usually in a bone, cartilage or a bone and cartilage. When a screw or a pin is installed in the sleeve, the sleeve is caused to expand thereby stabilizing the fastener in the operating area. In many embodiments the screw or pin can be removed and reinserted without disturbing the tissue in the operating area. The surgical fastener can be used to repair tissue or to secure other implant devices in a patient.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: March 6, 2012
    Assignee: BioDynamics LLC
    Inventors: James D. Ralph, Stephen L. Tatar, Thomas N. Troxell
  • Publication number: 20100324559
    Abstract: The invention pertains to adjustable bone plates which comprise one or more sets of first members and second members. The first members and second members are releaseably secured to each other by attachment means and locking means, and two or more set of first members and second members are connected by bridging means. The longitudinal and lateral dimensions of the bone plates may be adjustable.
    Type: Application
    Filed: December 10, 2009
    Publication date: December 23, 2010
    Inventors: James D. Ralph, Stephen L. Tatar, Thomas N. Troxell
  • Patent number: 7824699
    Abstract: Bioabsorbable drug delivery devices including modular drug delivery devices having shapes and sizes adapted to be inserted within a recess on the surface of an implantable prosthesis are disclosed. The devices may be attached to one another to create custom drug delivery devices having controllable drug release characteristics that depend on the composition of individual modules comprising the device. The modules may be cylinders, disks, tiles or tubes comprised of a bioabsorbable polymer and a therapeutic agent. The therapeutic agent(s) may be homogeneously distributed throughout the polymeric body of the device or contained within a cavity within a module comprising the device, or both. The device(s) may be threaded or attached to a prosthesis by a biodegradable adhesive. The modular devices may also be formed into tapered plugs for insertion into a mating receptacle.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: November 2, 2010
    Assignee: BioDynamics LLC
    Inventors: James D. Ralph, Stephen L. Tatar
  • Publication number: 20100152737
    Abstract: The invention pertains to adjustable bone plates which comprise one or more sets of first members and second members. The first members and second members are releasably secured to each other by attachment means and locking means, and two or more set of first members and second members are connected by bridging means. The longitudinal and lateral dimensions of the bone plates may be adjustable.
    Type: Application
    Filed: February 23, 2010
    Publication date: June 17, 2010
    Inventors: James D. Ralph, Stephen L. Tatar, Thomas N. Troxell
  • Patent number: 7695473
    Abstract: The invention pertains to adjustable bone plates which comprise one or more sets of first members and second members. The first members and second members are releaseably secured to each other by attachment means and locking means, and two or more set of first members and second members are connected by bridging means. The longitudinal and lateral dimensions of the bone plates may be adjustable.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: April 13, 2010
    Assignee: BioDynamics LLC
    Inventors: James D. Ralph, Stephen L. Tatar, Thomas N. Troxell
  • Patent number: 7621914
    Abstract: A longitudinally curved adjustable bone plate comprising a first plate having an end defined by at least two spaced prongs, and an end having means to fasten the plate to a body structure, e.g., the bone; and a second plate having an end defined by at least two straight bores for receiving the prongs, and an end having means to fasten the plate to a body structure, e.g., a bone; and a locking assembly for locking the prongs in the bores and fixing the overall length of the plate.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: November 24, 2009
    Assignee: BioDynamics, LLC
    Inventors: James D. Ralph, Thomas N. Troxell, Stephen L. Tatar