Patents by Inventor Craig Squires

Craig Squires 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).

  • Multi-axial bone screw assembly
    Patent number: 6660004
    Abstract: A bottom-loading multi-axial bone anchor apparatus is disclosed. The apparatus includes a receiver member, a crown member, a bone anchor and a retaining member. The receiver member defines an upper opening and a lower opening, which may form part of the same opening, a channel, and a groove. The crown member and bone anchor are loaded into the lower opening of the receiver member, and the retaining member fits around the bone anchor and into the groove in the receiver member. The bone anchor is capable of multi-axial positioning with respect to the receiver member. An elongated member is placed in the channel of the receiver member, contacting the crown member, and a compression member is applied via the upper opening. The compression member presses down on the elongated member, which presses down on the crown member and locks the bone anchor between the crown member and the retaining member.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: December 9, 2003
    Assignee: SDGI Holdings, Inc.
    Inventors: B. Thomas Barker, John Stewart Young, Craig Squires, David Brumfield, Chris Johnson, Dennis J. Buchanan
  • Multi-axial bone screw assembly
    Publication number: 20020026193
    Abstract: A bottom-loading multi-axial bone anchor apparatus is disclosed. The apparatus includes a receiver member, a crown member, a bone anchor and a retaining member. The receiver member defines an upper opening and a lower opening, which may form part of the same opening, a channel, and a groove. The crown member and bone anchor are loaded into the lower opening of the receiver member, and the retaining member fits around the bone anchor and into the groove in the receiver member. The bone anchor is capable of multi-axial positioning with respect to the receiver member. An elongated member is placed in the channel of the receiver member, contacting the crown member, and a compression member is applied via the upper opening. The compression member presses down on the elongated member, which presses down on the crown member and locks the bone anchor between the crown member and the retaining member.
    Type: Application
    Filed: August 28, 2001
    Publication date: February 28, 2002
    Inventors: B. Thomas Barker, John Stewart Young, Craig Squires, David Brumfield, Chris Johnson, Dennis J. Buchanan
  • Reverse angle thread for preventing splaying in medical devices
    Patent number: 6296642
    Abstract: Apparatus is disclosed for use in closing a medical device and preventing splaying of wall portions or legs of the medical device while maintaining low profile and minimal bulk of the medical device. The disclosed device is a medical device including a receiver member and a closure member. The receiver member includes an internal reverse angle thread, and the closure member includes an outer reverse angle thread, matable with the inner reverse angle thread. When the closure member is threaded into the receiver member, forces tending to splaying the wall portions or legs of the receiver member cause an interference fit between thread surfaces of the closure member and the receiver member, preventing the splay from occurring.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: October 2, 2001
    Assignee: SDGI Holdings, Inc.
    Inventors: Matthew M. Morrison, Craig Squires, B. Thomas Barker
  • Multi-axial bone screw assembly
    Patent number: 6280442
    Abstract: A bottom-loading multi-axial bone anchor apparatus is disclosed. The apparatus includes a receiver member, a crown member, a bone anchor and a retaining member. The receiver member defines an upper opening and a lower opening, which may form part of the same opening, a channel, and a groove. The crown member and bone anchor are loaded into the lower opening of the receiver member, and the retaining member fits around the bone anchor and into the groove in the receiver member. The bone anchor is capable of multi-axial positioning with respect to the receiver member. An elongated member is placed in the channel of the receiver member, contacting the crown member, and a compression member is applied via the upper opening. The compression member presses down on the elongated member, which presses down on the crown member and locks the bone anchor between the crown member and the retaining member.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: August 28, 2001
    Assignee: SDGI Holdings, Inc.
    Inventors: B. Thomas Barker, John Stewart Young, Craig Squires, David Brumfield, Chris Johnson, Dennis J. Buchanan