Patents by Inventor Gerard A. Engh

Gerard A. Engh 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).

  • Publication number: 20070173858
    Abstract: The present invention provides a method and device for restoring individual patient joint kinematics using minimally invasive surgical procedures. The instrumentation of the invention sculpts the articular surface of a first bone that normally articulates in a predetermined manner with a second bone. The instrumentation includes a bone sculpting tool and a mount for attaching the tool to the second bone. The implant system is comprised of implants that provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.
    Type: Application
    Filed: July 20, 2006
    Publication date: July 26, 2007
    Applicant: ALEXANDRIA RESEARCH TECHNOLOGIES, LLC
    Inventors: Gerard Engh, Wesley Johnson
  • Publication number: 20070078517
    Abstract: The present invention provides a method and device for restoring individual patient joint kinematics using minimally invasive surgical procedures. The instrumentation of the invention sculpts the articular surface of a first bone that normally articulates in a predetermined manner with a second bone. The instrumentation includes a bone sculpting tool and a mount for attaching the tool to the second bone. The implant system is comprised of implants that provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.
    Type: Application
    Filed: August 31, 2006
    Publication date: April 5, 2007
    Applicant: ALEXANDRIA RESEARCH TECHNOLOGIES, LLC
    Inventors: Gerard Engh, Wesley Johnson
  • Patent number: 7115131
    Abstract: The present invention provides a method and device for restoring individual patient joint kinematics using minimally invasive surgical procedures. The instrumentation of the invention sculpts the articular surface of a first bone that normally articulates in a predetermined manner with a second bone. The instrumentation includes a bone sculpting tool and a mount for attaching the tool to the second bone. The implant system is comprised of implants that provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: October 3, 2006
    Assignee: Alexandria Research Technologies, LLC
    Inventors: Gerard A. Engh, Wesley D. Johnson
  • Publication number: 20060004460
    Abstract: The present invention provides a modular device for restoring individual joint kinematics using minimally invasive surgical procedures. The modular implants include distinct components that include interconnection means and tethering means. The modular implants provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 5, 2006
    Applicant: Alexandria Research Technologies, LLC
    Inventors: Gerard Engh, Wesley Johnson
  • Patent number: 6723102
    Abstract: A method and apparatus for minimally invasive total joint replacement. The method involves sculpting the articular surface of a second bone that normally articulates with a first bone by attaching a bone sculpting tool directly or indirectly to the first bone with the tool in bone sculpting engagement with the articular surface of the second bone, and then sculpting the articular surface of the second bone with the joint reduced and moving one bone with respect to the other. An implant is placed to replace the articular surface of the second bone using an impaction device directly or indirectly attached to the first bone, wherein the force to place the implant is reacted by the second bone and the first bone.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: April 20, 2004
    Assignee: Alexandria Research Technologies, LLC
    Inventors: Wesley D. Johnson, Gerard Engh
  • Publication number: 20030236523
    Abstract: A method and apparatus for minimally invasive total joint replacement. The method involves sculpting the articular surface of a second bone that normally articulates with a first bone by attaching a bone sculpting tool directly or indirectly to the first bone with the tool in bone sculpting engagement with the articular surface of the second bone, and then sculpting the articular surface of the second bone with the joint reduced and moving one bone with respect to the other. An implant is placed to replace the articular surface of the second bone using an impaction device directly or indirectly attached to the first bone, wherein the force to place the implant is reacted by the second bone and the first bone.
    Type: Application
    Filed: May 5, 2003
    Publication date: December 25, 2003
    Inventors: Wesley D. Johnson, Gerard Engh
  • Publication number: 20020198528
    Abstract: The present invention provides a method and device for restoring individual patient joint kinematics using minimally invasive surgical procedures. The instrumentation of the invention sculpts the articular surface of a first bone that normally articulates in a predetermined manner with a second bone. The instrumentation includes a bone sculpting tool and a mount for attaching the tool to the second bone. The implant system is comprised of implants that provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.
    Type: Application
    Filed: May 29, 2002
    Publication date: December 26, 2002
    Inventors: Gerard A. Engh, Wesley D. Johnson
  • Publication number: 20020193797
    Abstract: A method and apparatus for minimally invasive total joint replacement. The method involves sculpting the articular surface of a second bone that normally articulates with a first bone by attaching a bone sculpting tool directly or indirectly to the first bone with the tool in bone sculpting engagement with the articular surface of the second bone, and then sculpting the articular surface of the second bone with the joint reduced and moving one bone with respect to the other. An implant is placed to replace the articular surface of the second bone using an impaction device directly or indirectly attached to the first bone, wherein the force to place the implant is reacted by the second bone and the first bone.
    Type: Application
    Filed: February 12, 2002
    Publication date: December 19, 2002
    Inventors: Wesley D. Johnson, Gerard Engh
  • Patent number: 6482209
    Abstract: The present invention provides a method and device for restoring individual patient joint kinematics using minimally invasive surgical procedures. The instrumentation of the invention sculpts the articular surface of a first bone that normally articulates in a predetermined manner with a second bone. The instrumentation includes a bone sculpting tool and a mount for attaching the tool to the second bone. The implant system is comprised of implants that provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: November 19, 2002
    Inventors: Gerard A. Engh, Wesley D. Johnson
  • Patent number: 6139581
    Abstract: An apparatus is provided for replacing at least a portion of a proximal tibia. The tibial tray apparatus includes a posterior compensation element configured for extension across a resected surface of the tibia and formed to include a proximal surface, a distal surface, and a side wall and a stem extending from and being unitary with the distal surface. The side wall of the posterior compensation element includes an anterior region with an anterior height and a posterior region with a posterior height, the posterior height being greater than the anterior height.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: October 31, 2000
    Assignee: Depuy Orthopaedics, Inc.
    Inventors: Gerard A Engh, Deborah S German, Jeff R Webb