Patents by Inventor Alan R. Burkholder
Alan R. Burkholder 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: 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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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: 9572560Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical refractor 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 31, 2012Date of Patent: February 21, 2017Assignee: Zimmer Biomet Spine, Inc.Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Shifle, Adam Kanter
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Patent number: 8540724Abstract: An embodiment of a method includes selecting a countersink depth setting with a linear countersink adjustment mechanism of a distractor-inserter, positioning distal ends of blades of the distractor-inserter between the two vertebral bodies to be separated, driving a head block assembly of the distractor-inserter forward until the retraction members of the distractor-inserter engages respective outer faces of the vertebral bodies, and retracting the distal ends of the blades and the tip from between the vertebral bodies, wherein the vertebral bodies compress the disc implant and hold the disc implant between the vertebral bodies at the countersink depth. A distractor-inserter includes first and second retraction members disposed within channels of the blades, and a countersink adjustment mechanism configured to linearly adjust a distance between a tip and the retraction members to thereby linearly adjust a countersink depth of an implantable element inserted between two distracted elements.Type: GrantFiled: April 30, 2010Date of Patent: September 24, 2013Assignee: Lanx, Inc.Inventors: Randall G. Mast, Alan R. Burkholder, G. Andrew Grim
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Publication number: 20130190575Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical refractor 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 31, 2012Publication date: July 25, 2013Applicant: LANX, INC.Inventors: Randall G. Mast, Alan R. Burkholder, Andrew Shifle, Adam Kanter
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Publication number: 20110270261Abstract: An embodiment of a method includes selecting a countersink depth setting with a linear countersink adjustment mechanism of a distractor-inserter, positioning distal ends of blades of the distractor-inserter between the two vertebral bodies to be separated, driving a head block assembly of the distractor-inserter forward until the retraction members of the distractor-inserter engages respective outer faces of the vertebral bodies, and retracting the distal ends of the blades and the tip from between the vertebral bodies, wherein the vertebral bodies compress the disc implant and hold the disc implant between the vertebral bodies at the countersink depth. A distractor-inserter includes first and second retraction members disposed within channels of the blades, and a countersink adjustment mechanism configured to linearly adjust a distance between a tip and the retraction members to thereby linearly adjust a countersink depth of an implantable element inserted between two distracted elements.Type: ApplicationFiled: April 30, 2010Publication date: November 3, 2011Applicant: LANX, INC.Inventors: Randall G. Mast, Alan R. Burkholder, G. Andrew Grim