Patents by Inventor Craig Glascott

Craig Glascott 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).

  • Polyaxial screw with improved locking
    Patent number: 7291153
    Abstract: A polyaxial pedicle screw assembly incorporates a concave portion on a receiver which mates with a convex surface on a head of the screw to form a ball joint. The radius of at least a portion of the concave surface is less than a radius of the mating convex portion whereby to create an interference fit.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: November 6, 2007
    Assignee: Debuy Acromed, Inc.
    Inventor: Craig Glascott
  • Polyaxial screw with improved locking
    Patent number: 6869433
    Abstract: A polyaxial pedicle screw assembly incorporates a concave portion on a receiver which mates with a convex surface on a head of the screw to form a ball joint. The radius of at least a portion of the concave surface is less than a radius of the mating convex portion whereby to create an interference fit.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: March 22, 2005
    Assignee: Depuy Acromed, Inc.
    Inventor: Craig Glascott
  • Polyaxial screw with improved locking
    Publication number: 20040249380
    Abstract: A polyaxial pedicle screw assembly incorporates a concave portion on a receiver which mates with a convex surface on a head of the screw to form a ball joint. The radius of at least a portion of the concave surface is less than a radius of the mating convex portion whereby to create an interference fit.
    Type: Application
    Filed: July 1, 2004
    Publication date: December 9, 2004
    Inventor: Craig Glascott
  • Polyaxial screw with improved locking
    Publication number: 20020151900
    Abstract: A polyaxial pedicle screw assembly incorporates a concave portion on a receiver which mates with a convex surface on a head of the screw to form a ball joint. The radius of at least a portion of the concave surface is less than a radius of the mating convex portion whereby to create an interference fit.
    Type: Application
    Filed: January 11, 2002
    Publication date: October 17, 2002
    Inventor: Craig Glascott
  • Spinal column retaining apparatus
    Patent number: 5741255
    Abstract: An apparatus for retaining vertebrae in a desired spatial relationship. The apparatus includes a fastener which cooperates with a connector assembly, a longitudinal member which is positionable along the spinal column at a location offset from the fastener, and a connector assembly which connects the fastener with the longitudinal member. The connector assembly includes a transverse member, a retainer block, and a set screw. The transverse member and retainer block have mating teeth. When the desired spatial relationship is achieved, the set screw is tightened thereby engaging the teeth and providing for a rigid locked assembly.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: April 21, 1998
    Assignee: AcroMed Corporation
    Inventors: Martin H. Krag, Craig Glascott