Patents by Inventor Andy Wonyong Choi
Andy Wonyong 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: 11963699Abstract: An instrument for spinal rotation that aligns and holds direct vertebral rotation (DVR) lever arms relative to each other to achieve an initial axial alignment of a segment of vertebrae and allows the final DVR rotation by rotating the instrument and lever arms together. A method of direct vertebral rotation that allows rotating the vertebrae to be aligned relative to each other, and collectively rotating the vertebrae to be aligned relative to adjacent spinal segments by rotating the direct vertebral rotation instrument. A system for direct vertebral rotation having at least two pedicle screws. The system also includes at least two levers attachable to the pedicle screws and a clamping instrument configured to clamp the levers.Type: GrantFiled: November 10, 2021Date of Patent: April 23, 2024Assignee: Stryker European Operations Holdings LLCInventors: Andy Wonyong Choi, Michael L Schmitz, Se-il Suk
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Patent number: 11950770Abstract: A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.Type: GrantFiled: December 1, 2022Date of Patent: April 9, 2024Assignee: Amplify Surgical, Inc.Inventors: Andy Wonyong Choi, Dong-Hwa Heo
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Publication number: 20230329751Abstract: A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments, and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.Type: ApplicationFiled: May 8, 2023Publication date: October 19, 2023Inventors: Andy Wonyong Choi, Dong-Hwa Heo, Jeffrey Roh
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Patent number: 11707302Abstract: Systems, devices, and methods for treating the spine are disclosed herein. Medical devices can be positioned along a subject's spine to treat various conditions and diseases. The medical device can include an actuator assembly and a clamp assembly. The actuator assembly can be positioned at an interspinous space between a superior spinous process and an inferior spinous process. The actuator assembly can be used to reconfigure the clamp assembly such that the clamp assembly clamps onto the superior and inferior spinous processes.Type: GrantFiled: February 23, 2021Date of Patent: July 25, 2023Assignee: Howmedica Osteonics Corp.Inventors: Andy Wonyong Choi, Kim Thien Nguyen, Robert Leslie Richards
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Patent number: 11678906Abstract: A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments, and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.Type: GrantFiled: November 18, 2019Date of Patent: June 20, 2023Assignee: Amplify Surgical, Inc.Inventors: Andy Wonyong Choi, Dong-Hwa Heo, Jeffrey Roh
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Publication number: 20230104335Abstract: A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.Type: ApplicationFiled: September 2, 2022Publication date: April 6, 2023Inventors: Andy Wonyong Choi, Dong-Hwa Heo, Jeffrey Roh
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Publication number: 20230000532Abstract: A polyaxial screwdriver for inserting a bone screw in a vertebra. A polyaxial bone screw assembly includes a coupling element. When a screw engaging end of the polyaxial screwdriver is lowered on the head of the bone screw, the complimentary surfaces of the screw engaging end of the screwdriver and the head of the screw self-align. A ratchet mechanism formed in the screwdriver provides progressive and automatic locking of the polyaxial screwdriver to the coupling element and prevents the accidental unthreading from the coupling element. In another embodiment of the polyaxial screwdriver, a collet slides over the outside surface of the upper end of the coupling element and locks on to the coupling element. In yet another embodiment of a polyaxial screwdriver, the outer sleeve of the polyaxial screwdriver has a split end that securely engages the coupling element.Type: ApplicationFiled: July 13, 2022Publication date: January 5, 2023Inventors: Amir Ali Sharifi-Mehr, Ernie Corrao, Andy Wonyong Choi
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Patent number: 11464648Abstract: A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.Type: GrantFiled: September 9, 2019Date of Patent: October 11, 2022Assignee: Amplify Surgical, Inc.Inventors: Andy Wonyong Choi, Dong-Hwa Heo, Jeffrey Roh
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Patent number: 11389211Abstract: A polyaxial screwdriver for inserting a bone screw in a vertebra. A polyaxial bone screw assembly includes a coupling element. When a screw engaging end of the polyaxial screwdriver is lowered on the head of the bone screw, the complimentary surfaces of the screw engaging end of the screwdriver and the head of the screw self-align. A ratchet mechanism formed in the screwdriver provides progressive and automatic locking of the polyaxial screwdriver to the coupling element and prevents the accidental unthreading from the coupling element. In another embodiment of the polyaxial screwdriver, a collet slides over the outside surface of the upper end of the coupling element and locks on to the coupling element. In yet another embodiment of a polyaxial screwdriver, the outer sleeve of the polyaxial screwdriver has a split end that securely engages the coupling element.Type: GrantFiled: March 24, 2020Date of Patent: July 19, 2022Assignee: Stryker European Operations Holdings LLCInventors: Amir Ali Sharifi-Mehr, Ernie Corrao, Andy Wonyong Choi
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Publication number: 20220133365Abstract: An instrument for spinal rotation that aligns and holds direct vertebral rotation (DVR) lever arms relative to each other to achieve an initial axial alignment of a segment of vertebrae and allows the final DVR rotation by rotating the instrument and lever arms together. A method of direct vertebral rotation that allows rotating the vertebrae to be aligned relative to each other, and collectively rotating the vertebrae to be aligned relative to adjacent spinal segments by rotating the direct vertebral rotation instrument. A system for direct vertebral rotation having at least two pedicle screws. The system also includes at least two levers attachable to the pedicle screws and a clamping instrument configured to clamp the levers.Type: ApplicationFiled: November 10, 2021Publication date: May 5, 2022Inventors: Andy Wonyong Choi, Michael L. Schmitz, Se-il Suk
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Patent number: 11172965Abstract: An instrument for spinal rotation that aligns and holds direct vertebral rotation (DVR) lever arms relative to each other to achieve an initial axial alignment of a segment of vertebrae and allows the final DVR rotation by rotating the instrument and lever arms together. A method of direct vertebral rotation that allows rotating the vertebrae to be aligned relative to each other, and collectively rotating the vertebrae to be aligned relative to adjacent spinal segments by rotating the direct vertebral rotation instrument. A system for direct vertebral rotation having at least two pedicle screws. The system also includes at least two levers attachable to the pedicle screws and a clamping instrument configured to clamp the levers.Type: GrantFiled: April 27, 2018Date of Patent: November 16, 2021Assignee: Stryker European Operations Holdings LLCInventors: Andy Wonyong Choi, Michael L. Schmitz, Se-Il Suk
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Publication number: 20210204985Abstract: Systems, devices, and methods for treating the spine are disclosed herein. Medical devices can be positioned along a subject's spine to treat various conditions and diseases. The medical device can include an actuator assembly and a clamp assembly. The actuator assembly can be positioned at an interspinous space between a superior spinous process and an inferior spinous process. The actuator assembly can be used to reconfigure the clamp assembly such that the clamp assembly clamps onto the superior and inferior spinous processes.Type: ApplicationFiled: February 23, 2021Publication date: July 8, 2021Applicant: Howmedica Osteonics Corp.Inventors: Andy Wonyong Choi, Kim Thien Nguyen, Robert Leslie Richards
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Patent number: 10945769Abstract: Systems, devices, and methods for treating the spine are disclosed herein. Medical devices can be positioned along a subject's spine to treat various conditions and diseases. The medical device can include an actuator assembly and a clamp assembly. The actuator assembly can be positioned at an interspinous space between a superior spinous process and an inferior spinous process. The actuator assembly can be used to reconfigure the clamp assembly such that the clamp assembly clamps onto the superior and inferior spinous processes.Type: GrantFiled: April 25, 2018Date of Patent: March 16, 2021Assignee: Howmedica Osteonics Corp.Inventors: Andy Wonyong Choi, Kim Thien Nguyen, Robert Leslie Richards
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Publication number: 20210068975Abstract: A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.Type: ApplicationFiled: September 9, 2019Publication date: March 11, 2021Inventors: Andy Wonyong Choi, Dong-Hwa Heo, Jeffrey Roh
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Publication number: 20210068863Abstract: A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments, and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.Type: ApplicationFiled: November 18, 2019Publication date: March 11, 2021Inventors: Andy Wonyong Choi, Dong-Hwa Heo, Jeffrey Roh
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Publication number: 20200289168Abstract: A polyaxial screwdriver for inserting a bone screw in a vertebra. A polyaxial bone screw assembly includes a coupling element. When a screw engaging end of the polyaxial screwdriver is lowered on the head of the bone screw, the complimentary surfaces of the screw engaging end of the screwdriver and the head of the screw self-align. A ratchet mechanism formed in the screwdriver provides progressive and automatic locking of the polyaxial screwdriver to the coupling element and prevents the accidental unthreading from the coupling element. In another embodiment of the polyaxial screwdriver, a collet slides over the outside surface of the upper end of the coupling element and locks on to the coupling element. In yet another embodiment of a polyaxial screwdriver, the outer sleeve of the polyaxial screwdriver has a split end that securely engages the coupling element.Type: ApplicationFiled: March 24, 2020Publication date: September 17, 2020Inventors: Amir Ali Sharifi-Mehr, Ernie Corrao, Andy Wonyong Choi
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Patent number: 10639080Abstract: A polyaxial screwdriver for inserting a bone screw in a vertebra. A polyaxial bone screw assembly includes a coupling element. When a screw engaging end of the polyaxial screwdriver is lowered on the head of the bone screw, the complimentary surfaces of the screw engaging end of the screwdriver and the head of the screw self-align. A ratchet mechanism formed in the screwdriver provides progressive and automatic locking of the polyaxial screwdriver to the coupling element and prevents the accidental unthreading from the coupling element. In another embodiment of the polyaxial screwdriver, a collet slides over the outside surface of the upper end of the coupling element and locks on to the coupling element. In yet another embodiment of a polyaxial screwdriver, the outer sleeve of the polyaxial screwdriver has a split end that securely engages the coupling element.Type: GrantFiled: May 1, 2017Date of Patent: May 5, 2020Assignee: Stryker European Holdings I, LLCInventors: Amir Ali Sharifi-Mehr, Ernie Corrao, Andy Wonyong Choi
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Publication number: 20180310967Abstract: An instrument for spinal rotation that aligns and holds direct vertebral rotation (DVR) lever arms relative to each other to achieve an initial axial alignment of a segment of vertebrae and allows the final DVR rotation by rotating the instrument and lever arms together. A method of direct vertebral rotation that allows rotating the vertebrae to be aligned relative to each other, and collectively rotating the vertebrae to be aligned relative to adjacent spinal segments by rotating the direct vertebral rotation instrument. A system for direct vertebral rotation having at least two pedicle screws. The system also includes at least two levers attachable to the pedicle screws and a clamping instrument configured to clamp the levers.Type: ApplicationFiled: April 27, 2018Publication date: November 1, 2018Inventors: Andy Wonyong Choi, Michael L. Schmitz, Se-il Suk
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Publication number: 20180243014Abstract: Systems, devices, and methods for treating the spine are disclosed herein. Medical devices can be positioned along a subject's spine to treat various conditions and diseases. The medical device can include an actuator assembly and a clamp assembly. The actuator assembly can be positioned at an interspinous space between a superior spinous process and an inferior spinous process. The actuator assembly can be used to reconfigure the clamp assembly such that the clamp assembly clamps onto the superior and inferior spinous processes.Type: ApplicationFiled: April 25, 2018Publication date: August 30, 2018Inventors: Andy Wonyong Choi, Kim Thien Nguyen, Robert Leslie Richards
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Patent number: 9974578Abstract: An instrument for spinal rotation that aligns and holds direct vertebral rotation (DVR) lever arms relative to each other to achieve an initial axial alignment of a segment of vertebrae and allows the final DVR rotation by rotating the instrument and lever arms together. A method of direct vertebral rotation that allows rotating the vertebrae to be aligned relative to each other, and collectively rotating the vertebrae to be aligned relative to adjacent spinal segments by rotating the direct vertebral rotation instrument. A system for direct vertebral rotation having at least two pedicle screws. The system also includes at least two levers attachable to the pedicle screws and a clamping instrument configured to clamp the levers.Type: GrantFiled: December 19, 2016Date of Patent: May 22, 2018Assignee: Stryker European Holdings I, LLCInventors: Andy Wonyong Choi, Michael L. Schmitz, Se-il Suk