Patents by Inventor Nam T. Chao
Nam T. Chao 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: 11849978Abstract: A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.Type: GrantFiled: April 16, 2021Date of Patent: December 26, 2023Assignee: Medos International SarlInventors: Nam T. Chao, Simon Siu, Ronald Sacher, Jerold P. Gurley, Randal Betz, Peter O. Newton
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Publication number: 20230346391Abstract: Various patient-specific tibial guide housings, patient-specific tibial guide boxes, and methods of resecting the tibial plateau are disclosed herein.Type: ApplicationFiled: July 5, 2023Publication date: November 2, 2023Inventor: Nam T. Chao
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Patent number: 11446066Abstract: A method for manipulating a vertebra includes connecting a first bone anchor to a first vertebra, connecting a second bone anchor to a second bone anchor, positioning a spinal rod in a receiving member of the first bone anchor and in a receiving member of the second bone anchor, connecting a first instrument to the receiving member of the first bone anchor, and manipulating the first instrument to rotate first bone anchor and the first vertebra relative to the second vertebra.Type: GrantFiled: June 10, 2019Date of Patent: September 20, 2022Assignee: DePuy Synthes Products, Inc.Inventors: Nam T. Chao, Dennis Hubbard, Christopher Rybicki, Ronald Sacher, James R. Donahue, Simon Siu, Randal Betz, Peter O. Newton
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Publication number: 20220087827Abstract: Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures.Type: ApplicationFiled: June 22, 2020Publication date: March 24, 2022Inventors: Raymond A. Bojarski, Nam T. Chao, John Slamin, Thomas Minas, Philipp Lang, Wolfgang Fitz, Daniel Steines, Terrance Wong
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Publication number: 20210282818Abstract: A hone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative tr the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative, to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.Type: ApplicationFiled: April 16, 2021Publication date: September 16, 2021Inventors: Nam T. Chao, Simon Siu, Ronald Sacher, Jerold P. Gurley, Randal Betz, Peter O. Newton
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Publication number: 20210219989Abstract: Various patient-specific tibial guide housings, patient-specific tibial guide boxes, and methods of resecting the tibial plateau are disclosed herein.Type: ApplicationFiled: April 5, 2021Publication date: July 22, 2021Inventor: Nam T. Chao
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Patent number: 11000315Abstract: A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.Type: GrantFiled: December 12, 2018Date of Patent: May 11, 2021Assignee: Medos International SarlInventors: Nam T. Chao, Simon Siu, Ronald Sacher, Jerold P. Gurley, Randal Betz, Peter O. Newton
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Patent number: 10966732Abstract: Various patient-specific tibial guide housings, patient-specific tibial guide boxes, and methods of resecting the tibial plateau are disclosed herein.Type: GrantFiled: November 1, 2019Date of Patent: April 6, 2021Assignee: ConforMIS, Inc.Inventor: Nam T. Chao
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Publication number: 20200060692Abstract: Various patient-specific tibial guide housings, patient-specific tibial guide boxes, and methods of resecting the tibial plateau are disclosed herein.Type: ApplicationFiled: November 1, 2019Publication date: February 27, 2020Inventor: Nam T. Chao
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Patent number: 10456263Abstract: Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures.Type: GrantFiled: April 27, 2015Date of Patent: October 29, 2019Assignee: ConforMIS, Inc.Inventors: Raymond A. Bojarski, Nam T. Chao, John Slamin, Thomas Minas, Philipp Lang, Wolfgang Fitz, Daniel Steines, Terrance Wong
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Publication number: 20190307492Abstract: A method for manipulating a vertebra includes connecting a first bone anchor to a first vertebra, connecting a second bone anchor to a second bone anchor, positioning a spinal rod in a receiving member of the first bone anchor and in a receiving member of the second bone anchor, connecting a first instrument to the receiving member of the first bone anchor, and manipulating the first instrument to rotate first bone anchor and the first vertebra relative to the second vertebra.Type: ApplicationFiled: June 10, 2019Publication date: October 10, 2019Applicant: DePuy Synthes Products, Inc.Inventors: Nam T. Chao, Dennis Hubbard, Christopher Rybicki, Ronald Sacher, James R. Donahue, Simon Siu, Randal Betz, Peter O. Newton
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Publication number: 20190216509Abstract: A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.Type: ApplicationFiled: December 12, 2018Publication date: July 18, 2019Inventors: Nam T. Chao, Simon Siu, Ronald Sacher, Jerold P. Gurley, Randal Betz, Peter O. Newton
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Patent number: 10314624Abstract: A method for manipulating a vertebra includes connecting a first bone anchor to a first vertebra, connecting a second bone anchor to a second bone anchor, positioning a spinal rod in a receiving member of the first bone anchor and in a receiving member of the second bone anchor, connecting a first instrument to the receiving member of the first bone anchor, and manipulating the first instrument to rotate first bone anchor and the first vertebra relative to the second vertebra.Type: GrantFiled: February 16, 2017Date of Patent: June 11, 2019Assignee: DePuy Synthes Products, Inc.Inventors: Nam T. Chao, Dennis Hubbard, Christopher Rybicki, Ronald Sacher, James R. Donahue, Simon Siu, Randal Betz, Peter O. Newton
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Patent number: 10172648Abstract: A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.Type: GrantFiled: September 21, 2017Date of Patent: January 8, 2019Assignee: Medos International SarlInventors: Nam T. Chao, Simon Siu, Ronald Sacher, Jerold P. Gurley, Randal Betz, Peter O. Newton
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Patent number: 9956047Abstract: Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures.Type: GrantFiled: April 25, 2016Date of Patent: May 1, 2018Assignee: ConforMIS, Inc.Inventors: Raymond A. Bojarski, Nam T. Chao, John Slamin, Philipp Lang, Wolfgang Fitz, Daniel Steines
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Patent number: 9956048Abstract: Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures.Type: GrantFiled: May 2, 2016Date of Patent: May 1, 2018Assignee: ConforMIS, Inc.Inventors: Raymond A. Bojarski, Nam T. Chao, John Slamin, Philipp Lang, Wolfgang Fitz, Daniel Steines, Thomas Minas
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Patent number: 9877790Abstract: Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures.Type: GrantFiled: November 11, 2011Date of Patent: January 30, 2018Assignee: ConforMIS, Inc.Inventors: Raymond A. Bojarski, Nam T. Chao, John Slamin, Philipp Lang, Wolfgang Fitz, Daniel Steines
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Publication number: 20180008319Abstract: A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.Type: ApplicationFiled: September 21, 2017Publication date: January 11, 2018Inventors: Nam T. Chao, Simon Siu, Ronald Sacher, Jerold P. Gurley, Randal Betz, Peter O. Newton
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Patent number: 9795416Abstract: A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.Type: GrantFiled: June 29, 2015Date of Patent: October 24, 2017Assignee: Medos International SárlInventors: Nam T. Chao, Simon Siu, Ronald Sacher, Jerold P. Gurley, Randal Betz, Peter O. Newton
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Patent number: 9775680Abstract: Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures.Type: GrantFiled: November 11, 2011Date of Patent: October 3, 2017Assignee: ConforMIS, Inc.Inventors: Raymond A. Bojarski, Nam T. Chao, John Slamin, Philipp Lang, Wolfgang Fitz, Daniel Steines