Patents by Inventor Andrew J. Leither
Andrew J. Leither 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).
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Patent number: 11903623Abstract: The present invention relates to a device and system for fixation of intra-articular and extra-articular fractures and non-unions of small bones and other small bone fragments, and more particularly to a threaded nail with a robust length and a trailing end with a cutting tip and longitudinal cutting flutes and a stepped diameter with cutting flutes at the transition point, and an optional cannulation along the central longitudinal axis of the nail.Type: GrantFiled: November 8, 2021Date of Patent: February 20, 2024Assignee: ExsoMed CorporationInventors: Lloyd P. Champagne, Jozef Zoldos, Richard Thomas Briganti, Andrew J. Leither
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Publication number: 20230200876Abstract: A four corner fusion system can include a curved plate that is more aligned with the natural anatomy of the wrist joint, and/or fewer number of screws (for example, about three or four screws). The system can have a lower profile, resulting in less soft tissue impingement. A surgical tool with a pair of offsetting clamping arms can be used to aid in bone reduction during a wrist fusion procedure.Type: ApplicationFiled: April 30, 2021Publication date: June 29, 2023Inventors: Martin Boyer, Kathleen McKeon, Kavi Sachar, Andrew J. Leither, Michael Zwolinski
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Publication number: 20220054175Abstract: The present invention relates to a device and system for fixation of intra-articular and extra-articular fractures and non-unions of small bones and other small bone fragments, and more particularly to a threaded nail with a robust length and a trailing end with a cutting tip and longitudinal cutting flutes and a stepped diameter with cutting flutes at the transition point, and an optional cannulation along the central longitudinal axis of the nail.Type: ApplicationFiled: November 8, 2021Publication date: February 24, 2022Inventors: Lloyd P. Champagne, Jozef Zoldos, Richard Thomas Briganti, Andrew J. Leither
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Patent number: 11191576Abstract: The present invention relates to a device and system for fixation of intra-articular and extra-articular fractures and non-unions of small bones and other small bone fragments, and more particularly to a threaded nail with a robust length and a trailing end with a cutting tip and longitudinal cutting flutes and a stepped diameter with cutting flutes at the transition point, and an optional cannulation along the central longitudinal axis of the nail.Type: GrantFiled: February 28, 2020Date of Patent: December 7, 2021Assignee: ExsoMed CorporationInventors: Lloyd P. Champagne, Jozef Zoldos, Richard T. Briganti, Andrew J. Leither
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Publication number: 20210236183Abstract: The present invention relates to a series of orthopedic plates for use in repair of a bone. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and either one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.Type: ApplicationFiled: April 20, 2021Publication date: August 5, 2021Applicant: WRIGHT MEDICAL TECHNOLOGY, INC.Inventors: Dustin DUCHARME, Robert H. BELL, Bryan D. Den Hartog, Rebecca F. KOCHER, Anil K. DUTTA, Thomas Bradley EDWARDS, David B. KAY, Andrew J. LEITHER, Derek S. LEWIS, Lee A. STRNAD, G. Martin WYNKOOP
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Patent number: 11006988Abstract: The present invention relates to a series of orthopedic plates for use in repair of a bone. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and either one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.Type: GrantFiled: January 30, 2019Date of Patent: May 18, 2021Assignee: WRIGHT MEDICAL TECHNOLOGY, INC.Inventors: Dustin Ducharme, Robert H. Bell, Bryan D. Den Hartog, Rebecca F. Kocher, Anil K. Dutta, Thomas Bradley Edwards, David B. Kay, Andrew J. Leither, Derek S. Lewis, Lee A. Strnad, G. Martin Wynkoop
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Patent number: 10786288Abstract: An orthopedic plate and fastener system is provided for fixation of bones which has an implant that can selectably be used to achieve fixed angle and variable locking of the fasteners, as well as non-locking of the fasteners. The system includes a variable locking assembly that includes a locking insert, having threads which mates with internal threads of a through opening in the implant. The system also provides for locking fixed angle fixation, and non-locking variable angle fixation, all of which can be used with the threaded holes of the plates. The locking insert is provided on a ring driver, which is similar to or acts as the drill guide used with the locking fasteners of the present. Thus, the invention also relates to a method of enabling surgery where the surgeon can select the mode of fixation of fasteners between variable axis locking, variable axis non-locking, and fixed angle locking fixation, all utilizing the same fastener opening within the implant.Type: GrantFiled: October 25, 2018Date of Patent: September 29, 2020Assignee: Orthohelix Surgical Designs, Inc.Inventors: Derek S. Lewis, Andrew J. Leither, Rebecca F. DiLiberto
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Publication number: 20200237415Abstract: The present invention relates to a device and system for fixation of intra-articular and extra-articular fractures and non-unions of small bones and other small bone fragments, and more particularly to a threaded nail with a robust length and a trailing end with a cutting tip and longitudinal cutting flutes and a stepped diameter with cutting flutes at the transition point, and an optional cannulation along the central longitudinal axis of the nail.Type: ApplicationFiled: February 28, 2020Publication date: July 30, 2020Inventors: Lloyd P. Champagne, Jozef Zoldos, Richard T. Briganti, Andrew J. Leither
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Publication number: 20200205867Abstract: The present invention relates to a series of orthopedic plates for use in repair of a bone. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and either one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.Type: ApplicationFiled: February 10, 2020Publication date: July 2, 2020Applicant: Orthohelix Surgical Designs, Inc.Inventors: Dustin DUCHARME, Robert H. BELL, Bryan D. DenHartog, Rebecca F. KOCHER, Anil K. DUTTA, Thomas Bradley EDWARDS, David B. KAY, Andrew J. LEITHER, Derek S. LEWIS, Lee A. STRNAD, G. Martin WYNKOOP
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Publication number: 20200170693Abstract: The present invention relates to a series of orthopedic plates for use in repair of a bone. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and either one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.Type: ApplicationFiled: February 7, 2020Publication date: June 4, 2020Applicant: Orthohelix Surgical Designs, Inc.Inventors: Dustin DUCHARME, Robert H. BELL, Bryan D. DenHartog, Rebecca F. KOCHER, Anil K. DUTTA, Thomas Bradley EDWARDS, David B. KAY, Andrew J. LEITHER, Derek S. LEWIS, Lee A. STRNAD, G. Martin WYNKOOP
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Publication number: 20190167322Abstract: The present invention relates to a series of orthopedic plates for use in repair of a bone. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and either one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.Type: ApplicationFiled: January 30, 2019Publication date: June 6, 2019Applicant: ORTHOHELIX SURGICAL DESIGNS, INC.Inventors: Dustin DUCHARME, Robert H. BELL, Bryan D. Den Hartog, Rebecca F. KOCHER, Anil K. DUTTA, Thomas Bradley EDWARDS, David B. KAY, Andrew J. LEITHER, Derek S. LEWIS, Lee A. STRNAD, G. Martin WYNKOOP
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Publication number: 20190059962Abstract: An orthopedic plate and fastener system is provided for fixation of bones which has an implant that can selectably be used to achieve fixed angle and variable locking of the fasteners, as well as non-locking of the fasteners. The system includes a variable locking assembly that includes a locking insert, having threads which mates with internal threads of a through opening in the implant. The system also provides for locking fixed angle fixation, and non-locking variable angle fixation, all of which can be used with the threaded holes of the plates. The locking insert is provided on a ring driver, which is similar to or acts as the drill guide used with the locking fasteners of the present. Thus, the invention also relates to a method of enabling surgery where the surgeon can select the mode of fixation of fasteners between variable axis locking, variable axis non-locking, and fixed angle locking fixation, all utilizing the same fastener opening within the implant.Type: ApplicationFiled: October 25, 2018Publication date: February 28, 2019Inventors: Derek S. Lewis, Andrew J. Leither, Rebecca F. DiLiberto
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Patent number: 10130403Abstract: An orthopedic plate and fastener system is provided for fixation of bones which has an implant that can selectably be used to achieve fixed angle and variable locking of the fasteners, as well as non-locking of the fasteners. The system includes a variable locking assembly that includes a locking insert, having threads which mates with internal threads of a through opening in the implant. The system also provides for locking fixed angle fixation, and non-locking variable angle fixation, all of which can be used with the threaded holes of the plates. The locking insert is provided on a ring driver, which is similar to or acts as the drill guide used with the locking fasteners of the present. Thus, the invention also relates to a method of enabling surgery where the surgeon can select the mode of fixation of fasteners between variable axis locking, variable axis non-locking, and fixed angle locking fixation, all utilizing the same fastener opening within the implant.Type: GrantFiled: August 17, 2015Date of Patent: November 20, 2018Assignee: Orthohelix Surgical Designs, Inc.Inventors: Derek S. Lewis, Andrew J. Leither, Rebecca F. DiLiberto
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Publication number: 20180036051Abstract: The present invention relates to a series of orthopedic plates for use in repair of a bone. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and either one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.Type: ApplicationFiled: October 19, 2017Publication date: February 8, 2018Applicant: ORTHOHELIX SURGICAL DESIGNS, INC.Inventors: Dustin DUCHARME, Robert H. BELL, Bryan D. DenHartog, Rebecca F. KOCHER, Anil K. DUTTA, Thomas Bradley EDWARDS, David B. KAY, Andrew J. LEITHER, Derek S. LEWIS, Lee A. STRNAD, G. Martin WYNKOOP
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Patent number: 9814504Abstract: The present invention relates to a series of orthopedic plates for use in repair of a bone. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and either one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.Type: GrantFiled: June 24, 2014Date of Patent: November 14, 2017Assignee: Orthohelix Surgical Design, Inc.Inventors: Dustin Ducharme, Robert H. Bell, Bryan D. DenHartog, Rebecca F. Kocher, Anil K. Dutta, Thomas Bradley Edwards, David B. Kay, Andrew J. Leither, Derek S. Lewis, Lee A. Strnad, G. Martin Wynkoop
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SURGICAL DRILL GUIDE HAVING KEYWAY FOR AXIAL ALIGNMENT OF A FASTENER FOR USE FOR AN ORTHOPEDIC PLATE
Publication number: 20170245870Abstract: A surgical drill guide for positioning, aligning, and of holes to be drilled in bone tissue has retaining means that holds the position and alignment of the drill guide body in a releasable manner with respect to a fastener hole in an orthopedic implant. The retaining means is a key guide that mates with a key way or key ways in or around a threaded locking hole of an orthopedic plate for alignment of a pilot hole and method of using the guide. The key guide has 2 to 8 projections that extend in the direction of the axis of the hole, such as hemi cylindrical projections, and the plate has a corresponding female key way that receives the retaining means. The invention also relates to a method of aligning a locking fastener in a plate at a desired angle relative to a bone by using a surgical guide having a key interface with the plate to position and align a pilot hole.Type: ApplicationFiled: May 12, 2017Publication date: August 31, 2017Applicant: OrthoHelix Surgical Designs, Inc.Inventors: Lee A. STRNAD, Dustin DUCHARME, Andrew J. LEITHER, Derek S. LEWIS, Amanda MARTIN -
Patent number: 9730742Abstract: A locking mechanism assembly to allow locking of a fastener in an orthopedic implant having its axis at a variable angle relative to the axis of threaded through opening in the implant. The assembly includes a locking insert, having threads which mates with the threads of the through opening and which includes a smooth opening that forms a torque driving recess and an annular flange. A fixator has a head portion with external threads of a harder material than that which forms the through opening so that the threads of the fixator will deform the insert to lock the fixator in a desired position relative to the plate.Type: GrantFiled: January 5, 2016Date of Patent: August 15, 2017Assignee: Orthohelix Surgical Designs, Inc.Inventors: Derek S. Lewis, Andrew J. Leither, Rebecca F. DiLiberto
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Publication number: 20170181779Abstract: The invention comprises an orthopedic construct comprising an active compression orthopedic plate that can in the alternative, include either compression screws or an elastic or superelastic staple which is capable of inducing compression into the associated bone, and in alternative embodiments, the plate is a compound plate or has a translating portion which receives a leg of the bone staple.Type: ApplicationFiled: June 15, 2016Publication date: June 29, 2017Inventors: Andrew J. Leither, Priya Prasad
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Surgical drill guide having keyway for axial alignment of a fastener for use for an orthopedic plate
Patent number: 9668759Abstract: A surgical drill guide for positioning, aligning, and of holes to be drilled in bone tissue has retaining means that holds the position and alignment of the drill guide body in a releasable manner with respect to a fastener hole in an orthopedic implant. The retaining means is a key guide that mates with a key way or key ways in or around a threaded locking hole of an orthopedic plate for alignment of a pilot hole and method of using the guide. The key guide has 2 to 8 projections that extend in the direction of the axis of the hole, such as hemi cylindrical projections, and the plate has a corresponding female key way that receives the retaining means. The invention also relates to a method of aligning a locking fastener in a plate at a desired angle relative to a bone by using a surgical guide having a key interface with the plate to position and align a pilot hole.Type: GrantFiled: July 8, 2008Date of Patent: June 6, 2017Assignee: Orthohelix Surgical Designs, Inc.Inventors: Lee A. Strnad, Dustin Ducharme, Andrew J. Leither, Derek S. Lewis, Amanda Martin -
Publication number: 20170095282Abstract: The present invention relates to a series of orthopedic plates for use in repair of a bone. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and either one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.Type: ApplicationFiled: December 15, 2016Publication date: April 6, 2017Inventors: Dustin DUCHARME, Robert H. BELL, Bryan D. DenHartog, Rebecca F. KOCHER, Anil K. DUTTA, Thomas Bradley EDWARDS, David B. KAY, Andrew J. LEITHER, Derek S. LEWIS, Lee A. STRNAD, G. Martin WYNKOOP