Patents by Inventor Denis F. O'Sullivan

Denis F. O'Sullivan 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).

  • Surgical bur with anti-chatter flute geometry
    Patent number: 8852222
    Abstract: A surgical bur including a shaft with a bur head. A number of flutes are formed on the bur head. Each flute has a cutting edge. Chamfer surfaces form the front, distally directed faces of some of the burs. The flutes without chamfer surfaces having cutting edges emerge from the bur head at locations relatively close to the distal end tip of the head. The flutes over which the chamfer surfaces extend have cutting edges that start, extend proximally rearward, from locations that are, spaced proximal from the distal end tip.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: October 7, 2014
    Assignee: Stryker Corporation
    Inventor: Denis F. O'Sullivan
  • SURGICAL BUR WITH ANTI-CHATTER FLUTE GEOMETRY
    Publication number: 20120158028
    Abstract: A surgical bur including a shaft with a bur head. A number of flutes are formed on the bur head. Each flute has a cutting edge. Chamfer surfaces form the front, distally directed faces of some of the burs. The flutes without chamfer surfaces having cutting edges emerge from the bur head at locations relatively close to the distal end tip of the head. The flutes over which the chamfer surfaces extend have cutting edges that start, extend proximally rearward, from locations that are, spaced proximal from the distal end tip.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 21, 2012
    Inventors: Denis F. O'Sullivan, Denis O'Donoghue
  • SURGICAL BUR WITH ANTI-CHATTER FLUTE GEOMETRY
    Publication number: 20100121365
    Abstract: A surgical bur including a shaft with a bur head. A number of flutes are formed on the bur head. Each flute has a cutting edge. Chamfer surfaces form the front, distally directed faces of some of the burs. The flutes without chamfer surfaces having cutting edges emerge from the bur head at locations relatively close to the distal end tip of the head. The flutes over which the chamfer surfaces extend have cutting edges that start, extend proximally rearward, from locations that are, spaced proximal from the distal end tip.
    Type: Application
    Filed: January 22, 2010
    Publication date: May 13, 2010
    Inventors: Denis F. O'Sullivan, Denis O'Donoghue
  • SURGICAL BUR WITH ANTI-CHATTER FLUTE GEOMETRY
    Publication number: 20080132929
    Abstract: A surgical bur (20) including a shaft with a bur head. A number of flutes are formed on the bur head. Each flute has a cutting edge (54). The flutes are formed so that some of the flutes having cutting edges emerge from the bur head at locations relatively close to the distal end tip of the head. Still other flutes are formed so as to have cutting edges that start, extend proximally rearward, from locations that are, spaced proximal from the distal end tip.
    Type: Application
    Filed: November 20, 2007
    Publication date: June 5, 2008
    Inventors: Denis F. O'Sullivan, Denis O'Donoghue