Patents by Inventor ROBERT (aka ANDREW) A. FIELDS

ROBERT (aka ANDREW) A. FIELDS 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).

  • Proximal interphalangeal joint prothesis
    Patent number: 10098749
    Abstract: An interphalangeal prosthesis (10) includes a mobile element (12), a proximal fixation element (22), and a distal fixation element (24). The mobile element (12) includes a proximal portion (42, 62, 94) and a distal portion (43, 64, 92), and the proximal portion includes three proximal mobile coupling contiguous surfaces (46, 48, 50) and a proximal mobile coupling protrusion (52), and the distal portion includes a distal coupling mobile surface (54) and a distal mobile coupling protrusion (56), and the proximal portion and the distal portion move relative to each other primarily in an axis of rotation perpendicular to a plane that extends through the proximal mobile coupling protrusion, the three proximal mobile coupling contiguous surfaces, the distal coupling mobile surface, and the distal mobile coupling protrusion in an implanted configuration.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: October 16, 2018
    Inventors: Ryan A. Jefferis, Michelle A. Chin, Robert (aka Andrew) A. Fields
  • PROXIMAL INTERPHALANGEAL JOINT PROTHESIS
    Publication number: 20170027710
    Abstract: An interphalangeal prosthesis (10) includes a mobile element (12), a proximal fixation element (22), and a distal fixation element (24). The mobile element (12) includes a proximal portion (42, 62, 94) and a distal portion (43, 64, 92), and the proximal portion includes three proximal mobile coupling contiguous surfaces (46, 48, 50) and a proximal mobile coupling protrusion (52), and the distal portion includes a distal coupling mobile surface (54) and a distal mobile coupling protrusion (56), and the proximal portion and the distal portion move relative to each other primarily in an axis of rotation perpendicular to a plane that extends through the proximal mobile coupling protrusion, the three proximal mobile coupling contiguous surfaces, the distal coupling mobile surface, and the distal mobile coupling protrusion in an implanted configuration.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Inventors: RYAN A. JEFFERIS, MICHELLE A. CHIN, ROBERT (aka ANDREW) A. FIELDS