Patents Assigned to Alexandria Research Technologies, LLC
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Publication number: 20110270258Abstract: Methods and devices for sculpting bones, particularly in preparation for implanting prosthetic devices to replace articulating bone joint surfaces. Improved bone removal devices including burr mills driven by gears and loop drives are provided. Reciprocating cutters and belt cutters are also provided. Some devices have either integral or removable expandable portions to vary the force and bone resection depth. Devices can have irrigation ports and plenums to remove bone fragments. Some cutters are dual cutters, adapted to remove bone in two or more regions, such as the knee joint, simultaneously.Type: ApplicationFiled: July 15, 2011Publication date: November 3, 2011Applicant: Alexandria Research Technologies, LLCInventors: Wesley D. Johnson, Gerard A. Engh, Robert E. Kohler, Aaron J. Bisek, Michael N. Travanty, Daryl R. Pilarski
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Patent number: 7985225Abstract: Methods and devices for sculpting bones, particularly in preparation for implanting prosthetic devices to replace articulating bone joint surfaces. Improved bone removal devices including burr mills driven by gears and loop drives are provided. Reciprocating cutters and belt cutters are also provided. Some devices have either integral or removable expandable portions to vary the force and bone resection depth. Devices can have irrigation ports and plenums to remove bone fragments. Some cutters are dual cutters, adapted to remove bone in two or more regions, such as the knee joint, simultaneously.Type: GrantFiled: May 1, 2007Date of Patent: July 26, 2011Assignee: Alexandria Research Technologies, LLCInventors: Wesley D. Johnson, Gerard A. Engh, Robert E. Kohler, Aaron J. Bisek, Michael N. Travanty, Daryl R. Pilarski
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Patent number: 7896922Abstract: The present invention provides a method and device for restoring individual patient joint kinematic 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 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: GrantFiled: April 20, 2009Date of Patent: March 1, 2011Assignee: Alexandria Research Technologies, LLCInventors: Gerard A. Engh, Wesley D. Johnson
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Publication number: 20110015749Abstract: 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 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: ApplicationFiled: June 18, 2010Publication date: January 20, 2011Applicant: Alexandria Research Technologies, LLCInventors: Gerard A. Engh, Wesley D. Johnson
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Publication number: 20100280624Abstract: 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. 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: ApplicationFiled: June 18, 2010Publication date: November 4, 2010Applicant: Alexandria Research Technologies, LLCInventors: GERARD A. ENGH, Wesley D. Johnson
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Patent number: 7758652Abstract: 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: GrantFiled: July 20, 2005Date of Patent: July 20, 2010Assignee: Alexandria Research Technologies, LLCInventors: Gerard A. Engh, Wesley D. Johnson
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Publication number: 20100145343Abstract: Methods and devices for sculpting bones, particularly in preparation for implanting prosthetic devices to replace articulating bone joint surfaces. Improved bone removal devices including burr mills driven by gears and loop drives are provided. Reciprocating cutters and belt cutters are also provided. Some devices have either integral or removable expandable portions to vary the force and bone resection depth. Devices can have irrigation ports and plenums to remove bone fragments. Some cutters are dual cutters, adapted to remove bone in two or more regions, such as the knee joint, simultaneously.Type: ApplicationFiled: April 4, 2008Publication date: June 10, 2010Applicant: Alexandria Research Technologies, LLCInventors: Wesley D. Johnson, Gerard A. Engh, Aaron J. Bisek, Micheal N. Travanty, Robert E. Kohler, Daryl R. Pilarski, Anthony G. Kremer, Kevin D. Swanson, Kevin T. Staples
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Patent number: 7604637Abstract: 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: GrantFiled: May 5, 2003Date of Patent: October 20, 2009Assignee: Alexandria Research Technologies, LLCInventors: Wesley D. Johnson, Gerard Engh
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Patent number: 7559928Abstract: A method and apparatus for minimally invasive total joint replacement is disclosed. The method involves sculpting the articular surface of a second bone that normally articulates with a first bone by attaching or supporting a bone sculpting tool directly or indirectly to the first bone with the tool in sculpting engagement with the articular surface of the second bone, and then sculpting the articular surface of the second bone with the joint reduced. The reamer system includes a reamer drive, a grater, a handle and a femoral broach.Type: GrantFiled: September 27, 2006Date of Patent: July 14, 2009Assignee: Alexandria Research Technologies, LLCInventors: Wesley D. Johnson, Gerard A. Engh, Mike Travanty
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Publication number: 20080234688Abstract: A system and method for placing an implant into or onto supporting bone, or between adjacent bones, without impaction is disclosed. The system includes an implant, a distracter, and a sleeve. Optionally, the invention includes an alignment guide, a surgical navigational tracker, and a bone displacer. The sleeve is structured to interpose the implant and supporting bone and provide a differential engagement force between the sleeve-implant interface and the sleeve-bone interface to preferentially move the implant into, onto or between supporting bone structures.Type: ApplicationFiled: July 27, 2006Publication date: September 25, 2008Applicant: ALEXANDRIA RESEARCH TECHNOLOGIES, LLCInventors: Wesley D. Johnson, Daryl R. Pilarski
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Publication number: 20070276394Abstract: A method and apparatus for minimally invasive total joint replacement is disclosed. The method involves sculpting the articular surface of a second bone that normally articulates with a first bone by attaching or supporting a bone sculpting tool directly or indirectly to the first bone with the tool in sculpting engagement with the articular surface of the second bone, and then sculpting the articular surface of the second bone with the joint reduced. The reamer system includes a reamer drive, a grater, a handle and a femoral broach.Type: ApplicationFiled: September 27, 2006Publication date: November 29, 2007Applicant: ALEXANDRIA RESEARCH TECHNOLOGIES, LLCInventors: Wesley Johnson, Gerard Engh, Mike Travanty
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Publication number: 20070270973Abstract: 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.Type: ApplicationFiled: April 10, 2007Publication date: November 22, 2007Applicant: ALEXANDRIA RESEARCH TECHNOLOGIES, LLCInventors: Wesley Johnson, Daryl Pilarski, Aaron Bisek, Robert Kohler
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Publication number: 20070260253Abstract: Methods and devices for sculpting bones, particularly in preparation for implanting prosthetic devices to replace articulating bone joint surfaces. Improved bone removal devices including burr mills driven by gears and loop drives are provided. Reciprocating cutters and belt cutters are also provided. Some devices have either integral or removable expandable portions to vary the force and bone resection depth. Devices can have irrigation ports and plenums to remove bone fragments. Some cutters are dual cutters, adapted to remove bone in two or more regions, such as the knee joint, simultaneously.Type: ApplicationFiled: May 1, 2007Publication date: November 8, 2007Applicant: ALEXANDRIA RESEARCH TECHNOLOGIES, LLCInventors: Wesley Johnson, Gerard Engh, Robert Kohler, Aaron Bisek, Michael Travanty, Daryl Pilarski
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Publication number: 20070173858Abstract: 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: ApplicationFiled: July 20, 2006Publication date: July 26, 2007Applicant: ALEXANDRIA RESEARCH TECHNOLOGIES, LLCInventors: Gerard Engh, Wesley Johnson
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Publication number: 20070078517Abstract: 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: ApplicationFiled: August 31, 2006Publication date: April 5, 2007Applicant: ALEXANDRIA RESEARCH TECHNOLOGIES, LLCInventors: Gerard Engh, Wesley Johnson
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Patent number: 7115131Abstract: 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: GrantFiled: May 29, 2002Date of Patent: October 3, 2006Assignee: Alexandria Research Technologies, LLCInventors: Gerard A. Engh, Wesley D. Johnson
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Publication number: 20060004460Abstract: 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: ApplicationFiled: July 20, 2005Publication date: January 5, 2006Applicant: Alexandria Research Technologies, LLCInventors: Gerard Engh, Wesley Johnson
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Patent number: 6723102Abstract: 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: GrantFiled: February 12, 2002Date of Patent: April 20, 2004Assignee: Alexandria Research Technologies, LLCInventors: Wesley D. Johnson, Gerard Engh