Patents by Inventor Liam C. Cosgrove

Liam C. Cosgrove 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 sagittal saw blade with a biasing assembly that urges the blade assembly used with the saw away from the saw head
    Patent number: 8696673
    Abstract: A surgical sagittal saw for use with a complementary blade assembly that includes a static bar. The saw includes a head over which the blade assembly bar is seated. A biasing member mounted to the saw head normally places a force of the blade assembly bar that urges the bar away from the blade head. A coupling assembly releasably holds the blade assembly bar in the static state to the saw head. When the coupling assembly is in the run state, holding the blade assembly to the saw head, the coupling assembly does so in opposition to the force the biasing assembly exerts against the blade assembly bar. During the process of removing the blade assembly from the saw, the force of the biasing assembly assists in the removal of the blade assembly bar from the saw head.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: April 15, 2014
    Assignee: Stryker Corporation
    Inventors: James G. Walen, Robert Brindley, Liam C. Cosgrove, Trevor M. Land
  • Surgical sagittal saw blade with a static bar and a pivoting blade head, the bar shaped to facilitate holding the blade to a complementary saw
    Patent number: 8444647
    Abstract: A surgical sagittal saw blade with a static blade bar and to which a blade head is mounted. Distal from the proximal end of the blade bar, the sides of the bar taper outwardly. These outer taper sides facilitate the coupling of the blade bar to the complementary saw used to actuate the blade.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: May 21, 2013
    Assignee: Stryker Corporation
    Inventors: James G. Walen, Robert Brindley, Liam C. Cosgrove, Trevor Land
  • Sagittal saw blade with a static bar and a moving drive rod and blade crown, the bar having secondary openings
    Patent number: 8348951
    Abstract: A surgical sagittal saw blade with a static blade bar shaped to be coupled to a sagittal saw. At least one drive rod extends through the bar. The drive rod is moveable within the blade bar. A blade crown, located outside the distal end opening of the blade bar is connected to the drive rod. The actuation of the drive rod by the saw results in the oscillation of the blade crown. Proximal to the distal end of the blade bar, the bar is formed with secondary openings. When the drive rod and blade crown are actuated, tissue entrained in the blade bar is discharged from the secondary openings.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: January 8, 2013
    Assignee: Stryker Corporation
    Inventors: James G. Walen, Robert Brindley, Liam C. Cosgrove, Trevor Land
  • SAGITTAL SAW BLADE WITH A STATIC BAR AND A MOVING DRIVE ROD AND BLADE CROWN, THE BAR HAVING SECONDARY OPENINGS
    Publication number: 20100228256
    Abstract: A surgical sagittal saw blade with a static blade bar shaped to be coupled to a sagittal saw. At least one drive rod extends through the bar. The drive rod is moveable within the blade bar. A blade crown, located outside the distal end opening of the blade bar is connected to the drive rod. The actuation of the drive rod by the saw results in the oscillation of the blade crown. Proximal to the distal end of the blade bar, the bar is formed with secondary openings. When the drive rod and blade crown are actuated, tissue entrained in the blade bar is discharged from the secondary openings.
    Type: Application
    Filed: May 7, 2010
    Publication date: September 9, 2010
    Applicant: Stryker Corporation
    Inventors: James G. Walen, Robert Brindley, Liam C. Cosgrove, Trevor M. Land
  • SURGICAL SAGITTAL SAW BLADE WITH A STATIC BAR AND A PIVOTING BLADE HEAD, THE BAR SHAPED TO FACILITATE HOLDIGN THE BLADE TO A COMPLEMENTARY SAW
    Publication number: 20100064525
    Abstract: A surgical sagittal saw blade with a static blade bar and to which a blade head is mounted. Distal from the proximal end of the blade bar, the sides of the bar taper outwardly. These outer taper sides facilitate the coupling of the blade bar to the complementary saw used to actuate the blade.
    Type: Application
    Filed: November 20, 2009
    Publication date: March 18, 2010
    Inventors: James G. Walen, Robert Brindley, Liam C. Cosgrove, Trevor M. Land