Patents by Inventor Theo Choi
Theo Choi 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: 11911077Abstract: A transverse connector includes a cross member assembly, a first connector assembly, and a second connector assembly. The cross member assembly includes a cross member, a first ring, and a second ring. The cross member has a first end portion and a second end portion. The first ring is receivable on the first end portion of the cross member and the second ring is receivable on the second end portion of the cross member. The first and second connector assemblies are coupled to the first and second rings of the cross member assembly, respectively, to support the cross member between the first and second connector assemblies. The first and second connector assemblies are configured to selectively and releasably secure to bone anchors.Type: GrantFiled: April 5, 2021Date of Patent: February 27, 2024Assignee: K2M, Inc.Inventors: Michael Finn, Christopher Harrod, Sergey Neckrysh, Peter Newton, Harry Shufflebarger, Timmon Ark, Theo Choi
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Patent number: 11642157Abstract: An instrument for bending a surgical rod includes first and second arm assemblies. The first arm assembly includes first and second arms having respective first and second receiving portions configured to receive the surgical rod therein. The second arm assembly includes third and fourth arms having respective third and fourth receiving portions configured to receive the surgical rod therein. The instrument is reconfigurable from an initial configuration in which the first and third receiving portions of the respective first and third arms engage the surgical rod such that spreading of the first and third receiving portions in a first direction bends the surgical rod in a first orientation and spreading of the first and third receiving portions in a second direction bends the surgical rod in a second orientation opposite to the first orientation.Type: GrantFiled: July 8, 2021Date of Patent: May 9, 2023Assignee: K2M, Inc.Inventors: Frank Schwab, Theo Choi, Timmon Ark
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Publication number: 20220133364Abstract: A polyaxial bone device includes a screw, a screw housing, and a spring. The screw includes a screw head and a shaft that extends from the screw head. The screw housing defines a longitudinal axis and a bore that extends along the longitudinal axis. The screw housing includes a basewall and opposed sidewalls that extend from the basewall. The basewall defines a notch that receives the shaft to increase pivotal movement between the screw and the screw housing relative to the longitudinal axis of the screw housing. The opposed sidewalls define a rod-receiving channel. The screw housing defines a transverse hole in communication with the bore. The spring is supported in the transverse hole and extends therethrough. The spring extends into the bore to frictionally engage the screw head while the screw head is seated in the bore.Type: ApplicationFiled: January 13, 2022Publication date: May 5, 2022Inventors: Timmon Ark, Theo Choi, Keenan O'Brien
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Patent number: 11229459Abstract: A polyaxial bone device includes a screw, a screw housing, and a spring. The screw includes a screw head and a shaft that extends from the screw head. The screw housing defines a longitudinal axis and a bore that extends along the longitudinal axis. The screw housing includes a basewall and opposed sidewalls that extend from the basewall. The basewall defines a notch that receives the shaft to increase pivotal movement between the screw and the screw housing relative to the longitudinal axis of the screw housing. The opposed sidewalls define a rod-receiving channel. The screw housing defines a transverse hole in communication with the bore. The spring is supported in the transverse hole and extends therethrough. The spring extends into the bore to frictionally engage the screw head while the screw head is seated in the bore.Type: GrantFiled: October 23, 2019Date of Patent: January 25, 2022Assignee: K2M, Inc.Inventors: Timmon Ark, Theo Choi, Keenan O'Brien
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Publication number: 20220015807Abstract: A surgical implant includes a first portion and a second portion. The first portion includes a body and connector assemblies. The body includes a posterior surface and defines a first bore defining an acute angle with respect to a first axis that is orthogonal to the posterior surface. The connector assemblies are disposed on opposing lateral sides of the body. Each connector assembly is selectively rotatable relative to the body. The second portion includes a base extending in a cephalad direction from the first portion, and an extension extending in the cephalad direction from the base. The base defines second bores configured to receive respective bone screws. The extension defines a third bore. The first bore of the body and the third bore of the extension define a second axis. The second bores are defined along a third axis orthogonal to the second axis.Type: ApplicationFiled: September 10, 2021Publication date: January 20, 2022Inventors: Michael Finn, Khaled Kebaish, Peter Newton, Harry Shufflebarger, Joel Torretti, Theo Choi, Stacy Hollins, Keenan O'Brien
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Publication number: 20210330366Abstract: An instrument for bending a surgical rod includes first and second arm assemblies. The first arm assembly includes first and second arms having respective first and second receiving portions configured to receive the surgical rod therein. The second arm assembly includes third and fourth arms having respective third and fourth receiving portions configured to receive the surgical rod therein. The instrument is reconfigurable from an initial configuration in which the first and third receiving portions of the respective first and third arms engage the surgical rod such that spreading of the first and third receiving portions in a first direction bends the surgical rod in a first orientation and spreading of the first and third receiving portions in a second direction bends the surgical rod in a second orientation opposite to the first orientation.Type: ApplicationFiled: July 8, 2021Publication date: October 28, 2021Inventors: Frank Schwab, Theo Choi, Timmon Ark
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Patent number: 11147595Abstract: A surgical implant includes a first portion and a second portion. The first portion includes a body and connector assemblies. The body includes a posterior surface and defines a first bore defining an acute angle with respect to a first axis that is orthogonal to the posterior surface. The connector assemblies are disposed on opposing lateral sides of the body. Each connector assembly is selectively rotatable relative to the body. The second portion includes a base extending in a cephalad direction from the first portion, and an extension extending in the cephalad direction from the base. The base defines second bores configured to receive respective bone screws. The extension defines a third bore. The first bore of the body and the third bore of the extension define a second axis. The second bores are defined along a third axis orthogonal to the second axis.Type: GrantFiled: October 18, 2019Date of Patent: October 19, 2021Assignee: K2M, Inc.Inventors: Michael Finn, Khaled Kebaish, Peter Newton, Harry Shufflebarger, Joel Toretti, Theo Choi, Stacy Hollins, Keenan O'Brien
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Patent number: 11090096Abstract: An instrument for bending a surgical rod includes first and second arm assemblies. The first arm assembly includes first and second arms having respective first and second receiving portions configured to receive the surgical rod therein. The second arm assembly includes third and fourth arms having respective third and fourth receiving portions configured to receive the surgical rod therein. The instrument is reconfigurable from an initial configuration in which the first and third receiving portions of the respective first and third arms engage the surgical rod such that transitioning the first and third arms towards each other bends the surgical rod in a first orientation and transitioning the first and third arms away from each other bends the surgical rod in a second orientation opposite to the first orientation.Type: GrantFiled: April 12, 2017Date of Patent: August 17, 2021Assignee: K2M, Inc.Inventors: Frank Schwab, Theo Choi, Timmon Ark
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Publication number: 20210220021Abstract: A transverse connector includes a cross member assembly, a first connector assembly, and a second connector assembly. The cross member assembly includes a cross member, a first ring, and a second ring. The cross member has a first end portion and a second end portion. The first ring is receivable on the first end portion of the cross member and the second ring is receivable on the second end portion of the cross member. The first and second connector assemblies are coupled to the first and second rings of the cross member assembly, respectively, to support the cross member between the first and second connector assemblies. The first and second connector assemblies are configured to selectively and releasably secure to bone anchors.Type: ApplicationFiled: April 5, 2021Publication date: July 22, 2021Inventors: Michael Finn, Christopher Harrod, Sergey Neckrysh, Peter Newton, Harry Shufflebarger, Timmon Ark, Theo Choi
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Patent number: 10993746Abstract: A transverse connector includes a cross member assembly, a first connector assembly, and a second connector assembly. The cross member assembly includes a cross member, a first ring, and a second ring. The cross member has a first end portion and a second end portion. The first ring is receivable on the first end portion of the cross member and the second ring is receivable on the second end portion of the cross member. The first and second connector assemblies are coupled to the first and second rings of the cross member assembly, respectively, to support the cross member between the first and second connector assemblies. The first and second connector assemblies are configured to selectively and releasably secure to bone anchors.Type: GrantFiled: May 2, 2019Date of Patent: May 4, 2021Assignee: K2M, Inc.Inventors: Michael Finn, Christopher Harrod, Sergey Neckrysh, Peter Newton, Harry Shufflebarger, Timmon Ark, Theo Choi
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Publication number: 20200121370Abstract: A surgical implant includes a first portion and a second portion. The first portion includes a body and connector assemblies. The body includes a posterior surface and defines a first bore defining an acute angle with respect to a first axis that is orthogonal to the posterior surface. The connector assemblies are disposed on opposing lateral sides of the body. Each connector assembly is selectively rotatable relative to the body. The second portion includes a base extending in a cephalad direction from the first portion, and an extension extending in the cephalad direction from the base. The base defines second bores configured to receive respective bone screws. The extension defines a third bore. The first bore of the body and the third bore of the extension define a second axis. The second bores are defined along a third axis orthogonal to the second axis.Type: ApplicationFiled: October 18, 2019Publication date: April 23, 2020Inventors: Michael Finn, Khaled Kebaish, Peter Newton, Harry Shufflebarger, Joel Toretti, Theo Choi, Stacy Hollins, Keenan O'Brien
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Patent number: 10610265Abstract: A polyaxial bone device includes a screw, a screw housing, and a spring. The screw includes a screw head and a shaft that extends from the screw head. The screw housing defines a longitudinal axis and a bore that extends along the longitudinal axis. The screw housing includes a basewall and opposed sidewalls that extend from the basewall. The basewall defines a notch that receives the shaft to increase pivotal movement between the screw and the screw housing relative to the longitudinal axis of the screw housing. The opposed sidewalk define a rod-receiving channel. The screw housing defines a transverse hole in communication with the bore. The spring is supported in the transverse hole and extends therethrough. The spring extends into the bore to frictionally engage the screw head while the screw head is seated in the bore.Type: GrantFiled: July 31, 2017Date of Patent: April 7, 2020Assignee: K2M, Inc.Inventors: Timmon Ark, Theo Choi, Keenan O'Brien
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Publication number: 20200054366Abstract: A polyaxial bone device includes a screw, a screw housing, and a spring. The screw includes a screw head and a shaft that extends from the screw head. The screw housing defines a longitudinal axis and a bore that extends along the longitudinal axis. The screw housing includes a basewall and opposed sidewalls that extend from the basewall. The basewall defines a notch that receives the shaft to increase pivotal movement between the screw and the screw housing relative to the longitudinal axis of the screw housing. The opposed sidewalls define a rod-receiving channel. The screw housing defines a transverse hole in communication with the bore. The spring is supported in the transverse hole and extends therethrough. The spring extends into the bore to frictionally engage the screw head while the screw head is seated in the bore.Type: ApplicationFiled: October 23, 2019Publication date: February 20, 2020Inventors: Timmon Ark, Theo Choi, Keenan O'Brien
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Publication number: 20190336178Abstract: A transverse connector includes a cross member assembly, a first connector assembly, and a second connector assembly. The cross member assembly includes a cross member, a first ring, and a second ring. The cross member has a first end portion and a second end portion. The first ring is receivable on the first end portion of the cross member and the second ring is receivable on the second end portion of the cross member. The first and second connector assemblies are coupled to the first and second rings of the cross member assembly, respectively, to support the cross member between the first and second connector assemblies. The first and second connector assemblies are configured to selectively and releasably secure to bone anchors.Type: ApplicationFiled: May 2, 2019Publication date: November 7, 2019Inventors: Michael Finn, Christopher Harrod, Sergey Neckrysh, Peter Newton, Harry Schufflebarger, Timmon Ark, Theo Choi
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Publication number: 20170290615Abstract: An instrument for bending a surgical rod includes first and second arm assemblies. The first arm assembly includes first and second arms having respective first and second receiving portions configured to receive the surgical rod therein. The second arm assembly includes third and fourth arms having respective third and fourth receiving portions configured to receive the surgical rod therein. The instrument is reconfigurable from an initial configuration in which the first and third receiving portions of the respective first and third arms engage the surgical rod such that transitioning the first and third arms towards each other bends the surgical rod in a first orientation and transitioning the first and third arms away from each other bends the surgical rod in a second orientation opposite to the first orientation.Type: ApplicationFiled: April 12, 2017Publication date: October 12, 2017Inventors: Frank Schwab, Theo Choi, Timmon Ark
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Patent number: 9526553Abstract: An instrument for selectively coupling with a pedicle screw is disclosed. The instrument includes an inner shaft, wherein the distal tip is configured to engage a pedicle screw and the proximal end configured to be selectively engaged with a knob, and a knob assembly configured to advance over the inner shaft, wherein the distal end is configured to engage the tulip of the pedicle screw and the proximal end is configured to selectively engage the inner shaft. A method for selectively coupling the instrument to a pedicle screw is also disclosed.Type: GrantFiled: April 4, 2014Date of Patent: December 27, 2016Assignee: K2M, Inc.Inventors: Robert Shay Bess, Theo Choi
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Patent number: 9517099Abstract: A pedicle screw locking system includes a reduction tube and a locking driver. The reduction tube includes an inner shaft, a pair of grips, a reduction sleeve, and a rotatable tube. The inner shaft has a threaded end and reduction arms distally extending from the threaded end. Each grip of the pair of grips has a finger configured to engage the receiver of a pedicle screw. The reduction sleeve and the rotatable tube are disposed over and coaxially aligned with the inner shaft. The rotatable tube is coupled to the reduction sleeve. The rotatable tube moves the reduction sleeve relative to the reduction arms. The locking driver includes a threaded portion and a blunt tip. The threaded portion is configured to thread into threads in the receiver of the pedicle screw until the blunt tip locks the receiver of the pedicle screw.Type: GrantFiled: November 14, 2014Date of Patent: December 13, 2016Assignee: K2M, Inc.Inventors: Robert Shay Bess, Frank Schwab, David Dreusicke, Theo Choi, Thomas Errico
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Patent number: 9504497Abstract: Provided is an iliosacral polyaxial screw system. A multiple part insert member is provided to secure the screw to the housing of the assembly to accommodate screws in which the shank diameter of the screw is greater than the bottom opening of the screw housing or greater than the opening of a ring member designed to capture the head of the screw in the housing.Type: GrantFiled: May 6, 2014Date of Patent: November 29, 2016Assignee: K2M, Inc.Inventors: Timmon Ark, Daniel Genovese, Theo Choi
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Publication number: 20150282855Abstract: An instrument for selectively coupling with a pedicle screw is disclosed. The instrument includes an inner shaft, wherein the distal tip is configured to engage a pedicle screw and the proximal end configured to be selectively engaged with a knob, and a knob assembly configured to advance over the inner shaft, wherein the distal end is configured to engage the tulip of the pedicle screw and the proximal end is configured to selectively engage the inner shaft. A method for selectively coupling the instrument to a pedicle screw is also disclosed.Type: ApplicationFiled: April 4, 2014Publication date: October 8, 2015Inventors: Robert Shay Bess, Theo Choi
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Publication number: 20150142067Abstract: A pedicle screw locking system includes a reduction tube and a locking driver. The reduction tube includes an inner shaft, a pair of grips, a reduction sleeve, and a rotatable tube. The inner shaft has a threaded end and reduction arms distally extending from the threaded end. Each grip of the pair of grips has a finger configured to engage the receiver of a pedicle screw. The reduction sleeve and the rotatable tube are disposed over and coaxially aligned with the inner shaft. The rotatable tube is coupled to the reduction sleeve. The rotatable tube moves the reduction sleeve relative to the reduction arms. The locking driver includes a threaded portion and a blunt tip. The threaded portion is configured to thread into threads in the receiver of the pedicle screw until the blunt tip locks the receiver of the pedicle screw.Type: ApplicationFiled: November 14, 2014Publication date: May 21, 2015Inventors: Robert Shay Bess, Frank Schwab, David Dreusicke, Theo Choi