Patents by Inventor David O. Okonkwo
David O. Okonkwo 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: 11857173Abstract: Retractors for surgical procedures such as spinal surgical procedures includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction. Methods of use for the retractors during surgical procedures are also disclosed.Type: GrantFiled: January 4, 2021Date of Patent: January 2, 2024Assignee: Zimmer Biomet Spine, Inc.Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Publication number: 20210153859Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: ApplicationFiled: January 4, 2021Publication date: May 27, 2021Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Patent number: 10905408Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: GrantFiled: March 18, 2019Date of Patent: February 2, 2021Assignee: Zimmer Biomet Spine, Inc.Inventors: Randall G. Mast, Alan Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Publication number: 20190209155Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: ApplicationFiled: March 18, 2019Publication date: July 11, 2019Inventors: Randall G. Mast, Alan Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Patent number: 10299777Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: GrantFiled: March 14, 2018Date of Patent: May 28, 2019Assignee: Zimmer Biomet Spine, Inc.Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Patent number: 10076320Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: GrantFiled: August 18, 2017Date of Patent: September 18, 2018Assignee: Zimmer Biomet Spine, Inc.Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Patent number: 10070852Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable at nature in a linear direction.Type: GrantFiled: November 2, 2017Date of Patent: September 11, 2018Assignee: Zimmer Biomet Spine, Inc.Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Publication number: 20180199927Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: ApplicationFiled: March 14, 2018Publication date: July 19, 2018Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Patent number: 9943301Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: GrantFiled: June 15, 2016Date of Patent: April 17, 2018Assignee: Zimmer Biomet Spine, Inc.Inventors: Randall G. Mast, Alan Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Publication number: 20180055504Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable at nature in a linear direction.Type: ApplicationFiled: November 2, 2017Publication date: March 1, 2018Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Publication number: 20170340318Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: ApplicationFiled: August 18, 2017Publication date: November 30, 2017Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Patent number: 9826966Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: GrantFiled: December 8, 2016Date of Patent: November 28, 2017Assignee: Zimmer Biomet Spine, Inc.Inventors: Randall G. Mast, Alan Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Publication number: 20170086812Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: ApplicationFiled: December 8, 2016Publication date: March 30, 2017Inventors: Randall G. Mast, Alan Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Publication number: 20160296220Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: ApplicationFiled: June 15, 2016Publication date: October 13, 2016Inventors: Randall G. Mast, Alan Burkholder, Andrew Shifle, Adam Kanter, David O. Okonkwo