Patents by Inventor Tin Nguyen
Tin Nguyen 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: 10716579Abstract: A method of creating a patient specific instrument (PSI) for use in knee replacement surgery is described which includes performing at least two two-dimensional X-ray scans of a bone, each of the X-ray scans being taken from different angular positions, generating a digital bone model of the bone based on the X-ray scans, planning the PSI based on the digital bone model, including determining locations for one or more anchor points on the PSI which are adapted to abut a surface of the bone, the determined locations of the anchor points being disposed on the PSI at locations corresponding to areas of expected high accuracy on the digital bone model generated by the X-ray scans. The areas of expected high accuracy include at least a peripheral bone contour in at least one of the angular position of the X-ray scans. A suite of such PSI instruments is also described.Type: GrantFiled: March 8, 2018Date of Patent: July 21, 2020Assignee: ZIMMER INC.Inventors: Pierre Couture, Trong Tin Nguyen, Anselm Jakob Neurohr, Jean-Sébastien Merette
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Publication number: 20190254681Abstract: Patient-specific instrumentation for use when performing articular joint repair is provided. A patient-specific jig is adapted to be positioned over a bone at an articular surface thereof for assisting in preparing the bone surface for reception of a prosthesis. The jig comprises a bone contacting portion adapted to matingly contact a portion of the articular surface of the bone and a cutting slot adapted to receive therein a saw blade for resecting the articular surface of the bone. The cutting slot may be press-fitted into the opening of a cut guide. A patient-specific plate and a patient-specific rotational guide are also provided for guiding a positioning of the prosthesis over the resected surface of the bone. A method for manufacturing the patient-specific jig is further provided.Type: ApplicationFiled: May 6, 2019Publication date: August 22, 2019Inventors: Pierre COUTURE, Trong Tin NGUYEN, Anselm Jakob NEUROHR, Jean-Sebastien MERETTE, Jean-Guillaume Abiven, Alain Richard
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Publication number: 20190209183Abstract: The patient specific instrument (PSI) assembly for guiding a surgical tool on a tibia during a knee replacement surgery includes an extra-medullary portion at a distal end, an elongated rod connected at a distal end to the extra-medullary portion and extending in a direction along a mechanical axis of the tibia, and an upper mounting portion at a proximal end. The extra-medullary portion has a pair of spaced apart malleoli clamping elements with a size and/or relative position that is patient-specific for engaging respective ones of the lateral and medial malleoli. The upper mounting portion including a base body connected to a proximal end of the elongated rod and a surgical guide having guide openings extending therethrough and anchor element(s) on the upper mounting portion in locations adapted to overlay a peripheral contour of the tibia. The peripheral contour of the tibia including an anterior surface of the proximal tibia.Type: ApplicationFiled: March 15, 2019Publication date: July 11, 2019Inventors: Pierre COUTURE, Trong Tin NGUYEN, Anselm Jakob NEUROHR, Jean-Sébastien MERETTE
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Patent number: 10327786Abstract: Patient-specific instrumentation for use when performing articular joint repair is provided. A patient-specific jig is adapted to be positioned over a bone at an articular surface thereof for assisting in preparing the bone surface for reception of a prosthesis. The jig comprises a bone contacting portion adapted to matingly contact a portion of the articular surface of the bone and a cutting slot adapted to receive therein a saw blade for resecting the articular surface of the bone. The cutting slot may be press-fitted into the opening of a cut guide. A patient-specific plate and a patient-specific rotational guide are also provided for guiding a positioning of the prosthesis over the resected surface of the bone. A method for manufacturing the patient-specific jig is further provided.Type: GrantFiled: May 24, 2013Date of Patent: June 25, 2019Assignee: ZIMMER, INC.Inventors: Pierre Couture, Trong Tin Nguyen, Anselm Jakob Neurohr, Jean-Sebastien Merette, Jean-Guillaume Abiven, Alain Richard
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Publication number: 20190175277Abstract: A system for creating at least one model of a bone and implanted implant comprises a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining at least one image of at least part of a bone and of an implanted implant on the bone, the at least one image being patient specific, obtaining a virtual model of the implanted implant using an identity of the implanted implant, overlaying the virtual model of the implanted implant on the at least one image to determine a relative orientation of the implanted implant relative to the bone in the at least one image, and generating and outputting a current bone and implant model using the at least one image, the virtual model of the implanted implant and the overlaying.Type: ApplicationFiled: December 12, 2018Publication date: June 13, 2019Inventors: Ramnada CHAV, Jean-Sebastien MERETTE, Tin NGUYEN, Karine DUVAL, Pierre COUTURE
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Publication number: 20190069907Abstract: A method tracks a tool with respect to a bone in computer-assisted surgery. A reference tracker with a MEMS unit is secured to the bone. The tracker outputs data relating to its orientation. A tool provided with a MEMS unit and secured to the bone is preset with an initial orientation. The tool outputs tracking data related to orientation of the tool once initialized. A trackable frame of reference relating the bone to the orientation of the tracker is created. The MEMS unit of the tool is initialized. A relation between the initial orientation of the tool and the orientation of the tracker at initialization of the MEMS unit of the tool is recorded. Orientational data of the tool relative to the frame of reference of the bone calculated using the relation is displayed. A computer-assisted surgery system for tracking a tool with respect to a bone after an initialization of a MEMS unit is also described.Type: ApplicationFiled: August 13, 2018Publication date: March 7, 2019Inventors: Louis-Philippe AMIOT, Pierre COUTURE, Catherine PROULX, Trong Tin NGUYEN, Myriam VALIN
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Patent number: 10149725Abstract: A computer-assisted surgery (CAS) navigation assembly comprises a micro-electromechanical sensor (MEMS) navigation unit having one or more MEMS to provide at least orientation data. A support receives the MEMS navigation unit therein, the support being adapted to be mounted on the instrument in a fixed orientation relative to established navigated features of the instrument. At least two mating ball-in-socket features are disposed between the MEMS navigation unit and the support at opposed ends thereof for releasably engaging the MEMS navigation unit in precise orientational alignment within the receptacle, the at least two mating ball-in-socket features comprising catches aligned along an axis extending between the opposed ends, at least one of the catches being a biased catch. A method of connecting a MEMS navigation unit with a mating support fixed to a CAS instrument navigated by the CAS system is also provided.Type: GrantFiled: September 22, 2017Date of Patent: December 11, 2018Assignee: ORTHOSOFT INC.Inventors: Tin Nguyen, Yvan Leone, Benoit Pelletier
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Patent number: 10123872Abstract: Devices and methods are provided for surgical repair of dilated aortic root to restore aortic valve competence while preserving native leaflets. In one aspect of the invention an expandable annuloplasty ring is provided for external placement at the base of a dilated aortic root. The expandable ring is capable of elastically expanding between a first diastolic diameter and a larger second systolic diameter to provide a physiologically representative surgical repair of the aortic root. In a further aspect of the invention, is provided a holder assembly for aortic annuloplasty ring and suitable for other cardiac valve prosthesis. The holder assembly consists of a holder body pivotingly coupled to a handle member through a ball-and-socket arrangement.Type: GrantFiled: August 2, 2017Date of Patent: November 13, 2018Assignee: Coroneo, Inc.Inventors: Neil Bulman-Fleming, Emmanuel Lansac, Trong Tin Nguyen, Anthony Paolitto, Jonathan Paquette, Adrian Ranga, Valerio Valentini
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Patent number: 10070869Abstract: A method tracks a tool with respect to a bone in computer-assisted surgery. A reference tracker with a MEMS unit is secured to the bone. The tracker outputs data relating to its orientation. A tool provided with a MEMS unit and secured to the bone is preset with an initial orientation. The tool outputs tracking data related to orientation of the tool once initialized. A trackable frame of reference relating the bone to the orientation of the tracker is created. The MEMS unit of the tool is initialized. A relation between the initial orientation of the tool and the orientation of the tracker at initialization of the MEMS unit of the tool is recorded. Orientational data of the tool relative to the frame of reference of the bone calculated using the relation is displayed. A computer-assisted surgery system for tracking a tool with respect to a bone after an initialization of a MEMS unit is also described.Type: GrantFiled: February 25, 2011Date of Patent: September 11, 2018Assignee: ORTHOSOFT INC.Inventors: Louis-Philippe Amiot, Pierre Couture, Catherine Proulx, Trong Tin Nguyen, Myriam Valin
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Publication number: 20180193035Abstract: A method of creating a patient specific instrument (PSI) for use in knee replacement surgery is described which includes performing at least two two-dimensional X-ray scans of a bone, each of the X-ray scans being taken from different angular positions, generating a digital bone model of the bone based on the X-ray scans, planning the PSI based on the digital bone model, including determining locations for one or more anchor points on the PSI which are adapted to abut a surface of the bone, the determined locations of the anchor points being disposed on the PSI at locations corresponding to areas of expected high accuracy on the digital bone model generated by the X-ray scans. The areas of expected high accuracy include at least a peripheral bone contour in at least one of the angular position of the X-ray scans. A suite of such PSI instruments is also described.Type: ApplicationFiled: March 8, 2018Publication date: July 12, 2018Inventors: Pierre COUTURE, Trong Tin NGUYEN, Anselm Jakob NEUROHR, Jean-Sébastien MERETTE
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Patent number: 9987021Abstract: A method for determining a mechanical axis of a tibia using a tibial digitizer is disclosed. The method includes: determining an upper reference point on a tibial plateau corresponding to an entry point of the mechanical axis; fastening an upper mounting end of the tibial digitizer to the tibial plateau at the upper reference point; and fastening a lower mounting end of the tibial digitizer to medial and lateral malleoli of the ankle, by inwardly displacing opposed caliper arms of a self-centering malleoli engaging mechanism toward each other in a common plane until the caliper arms abut the malleoli. A lower reference point located at a midpoint between the medial and lateral malleoli is then determined by identifying a corresponding midpoint between the caliper arms when they are clamped onto the medial and lateral malleoli.Type: GrantFiled: July 28, 2016Date of Patent: June 5, 2018Assignee: ORTHOSOFT INC.Inventors: Benoit Pelletier, Karine Duval, Trong Tin Nguyen, Pierre Couture, Louis-Philippe Amiot, Yannick Boutin, Alain Richard, Catherine Proulx
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Patent number: 9924950Abstract: A method of creating a patient specific instrument (PSI) for use in knee replacement surgery is described which includes performing at least two X-ray scans of a bone, each of the X-ray scans being taken from different angular positions, generating a digital bone model of the bone based solely on the X-ray scans, planning the PSI based on the digital bone model, including determining locations for one or more anchor points on the PSI which are adapted to abut a surface of the bone, the determined locations of the anchor points being disposed on the PSI at locations corresponding to areas of expected high accuracy on the digital bone model generated by the X-ray scans. The areas of expected high accuracy include at least a peripheral bone contour in at least one of the angular position of the X-ray scans. A suite of such PSI instruments is also described.Type: GrantFiled: September 25, 2014Date of Patent: March 27, 2018Assignee: ZIMMER, INC.Inventors: Pierre Couture, Trong Tin Nguyen, Anselm Jakob Neurohr, Jean-Sébastien Mérette
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Publication number: 20180008354Abstract: A computer-assisted surgery (CAS) navigation assembly comprises a micro-electromechanical sensor (MEMS) navigation unit having one or more MEMS to provide at least orientation data. A support receives the MEMS navigation unit therein, the support being adapted to be mounted on the instrument in a fixed orientation relative to established navigated features of the instrument. At least two mating ball-in-socket features are disposed between the MEMS navigation unit and the support at opposed ends thereof for releasably engaging the MEMS navigation unit in precise orientational alignment within the receptacle, the at least two mating ball-in-socket features comprising catches aligned along an axis extending between the opposed ends, at least one of the catches being a biased catch. A method of connecting a MEMS navigation unit with a mating support fixed to a CAS instrument navigated by the CAS system is also provided.Type: ApplicationFiled: September 22, 2017Publication date: January 11, 2018Inventors: Tin NGUYEN, Yvan LEONE, Benoit PELLETIER
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Patent number: 9839533Abstract: The disclosed device for verifying a hip-knee-ankle angle includes a mounting base having a planar abutting surface adapted for direct abutting against a resected surface on a distal femur, and a first inertial sensor in communication with a computer assisted surgery (CAS) system to determine an orientation of the mounting base and to digitize a mechanical axis of the femur. A visual alignment guide element is pivotably mounted to the mounting base such that the angular position of the visual alignment guide element is adjustable so as to be visually aligned with a mechanical axis of a tibia. A difference between orientations of the mounting base and the visual alignment guide is calculated by the computer assisted surgery system to determine the hip-knee-ankle angle.Type: GrantFiled: January 6, 2017Date of Patent: December 12, 2017Assignee: ORTHOSOFT INC.Inventors: Trong Tin Nguyen, Pierre Couture
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Publication number: 20170325957Abstract: Devices and methods are provided for surgical repair of dilated aortic root to restore aortic valve competence while preserving native leaflets. In one aspect of the invention an expandable annuloplasty ring is provided for external placement at the base of a dilated aortic root. The expandable ring is capable of elastically expanding between a first diastolic diameter and a larger second systolic diameter to provide a physiologically representative surgical repair of the aortic root. In a further aspect of the invention, is provided a holder assembly for aortic annuloplasty ring and suitable for other cardiac valve prosthesis. The holder assembly consists of a holder body pivotingly coupled to a handle member through a ball-and-socket arrangement.Type: ApplicationFiled: August 2, 2017Publication date: November 16, 2017Inventors: Neil Bulman-Fleming, Emmanuel Lansac, Trong Tin Nguyen, Anthony Paolitto, Jonathan Paquette, Adrian Ranga, Valerio Valentini
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Patent number: 9801685Abstract: A computer-assisted surgery (CAS) navigation assembly comprises a micro-electromechanical sensor (MEMS) navigation unit having one or more MEMS to provide at least orientation data. A support receives the MEMS navigation unit therein, the support being adapted to be mounted on the instrument in a fixed orientation relative to established navigated features of the instrument. At least two mating ball-in-socket features are disposed between the MEMS navigation unit and the support at opposed ends thereof for releasably engaging the MEMS navigation unit in precise orientational alignment within the receptacle, the at least two mating ball-in-socket features comprising catches aligned along an axis extending between the opposed ends, at least one of the catches being a biased catch. A method of connecting a MEMS navigation unit with a mating support fixed to a CAS instrument navigated by the CAS system is also provided.Type: GrantFiled: December 21, 2012Date of Patent: October 31, 2017Assignee: ORTHOSOFT INC.Inventors: Tin Nguyen, Yvan Léone, Benoit Pelletier
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Patent number: 9757231Abstract: Devices and methods are provided for surgical repair of dilated aortic root to restore aortic valve competence while preserving native leaflets. In one aspect of the invention an expandable annuloplasty ring is provided for external placement at the base of a dilated aortic root. The expandable ring is capable of elastically expanding between a first diastolic diameter and a larger second systolic diameter to provide a physiologically representative surgical repair of the aortic root. In a further aspect of the invention, is provided a holder assembly for aortic annuloplasty ring and suitable for other cardiac valve prosthesis. The holder assembly consists of a holder body pivotingly coupled to a handle member through a ball-and-socket arrangement.Type: GrantFiled: August 23, 2012Date of Patent: September 12, 2017Assignee: Coroneo, Inc.Inventors: Neil Bulman-Fleming, Emmanuel Lansac, Trong Tin Nguyen, Anthony Paolitto, Jonathan Paquette, Adrian Ranga, Valerio Valentini
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Publication number: 20170121065Abstract: A disposable filter cup has an open-bottom cup, a permeable lower cross-sectional barrier adhered to the interior wall of the cup, a permeable upper cross-sectional barrier adhered to the interior wall of the cup between the lower cross-sectional barrier and the top of the cup, a chamber defined by a volume between the upper cross-sectional barrier and the top of the cup, and a plurality of arms extending from an exterior wall of the cup. In an alternative embodiment, one or more inverted, generally U-shaped channels extend outwardly from a rim of the cup. The arms and/or the one or more U-shaped channels engage with a rim of a drinking receptacle to provide support for the filter cup within the drinking receptacle. A brewing medium is contained between the lower cross-sectional barrier and the upper cross-sectional barrier.Type: ApplicationFiled: July 17, 2015Publication date: May 4, 2017Inventors: Morgan Scott, Tommy Tin Nguyen
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Publication number: 20170112637Abstract: The disclosed device for verifying a hip-knee-ankle angle includes a mounting base having a planar abutting surface adapted for direct abutting against a resected surface on a distal femur, and a first inertial sensor in communication with a computer assisted surgery (CAS) system to determine an orientation of the mounting base and to digitize a mechanical axis of the femur. A visual alignment guide element is pivotably mounted to the mounting base such that the angular position of the visual alignment guide element is adjustable so as to be visually aligned with a mechanical axis of a tibia. A difference between orientations of the mounting base and the visual alignment guide is calculated by the computer assisted surgery system to determine the hip-knee-ankle angle.Type: ApplicationFiled: January 6, 2017Publication date: April 27, 2017Inventors: Trong Tin NGUYEN, Pierre COUTURE
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Patent number: 9597156Abstract: A system tracks an object in computer-assisted surgery. The system comprises a sensor unit secured to the femur. Gyroscopes on the sensor unit produce readings related to orientation data about three axes of rotation. A tracking unit receives the gyroscope readings. An axis calibrator on the tracking unit comprises a calculator for adding at least part of the gyroscope readings for specific movements of the object about a desired axis. An axis normalizer on the tracking unit determines an orientation of the desired axis with respect to the sensor unit from the added gyroscope readings. A tracking processor tracks the desired axis from the gyroscope readings. An interface displays orientation data for the object from a tracking of the desired axis. A method for tracking an object with a gyroscope sensor unit is also provided.Type: GrantFiled: July 30, 2010Date of Patent: March 21, 2017Assignee: ORTHOSOFT INC.Inventors: Louis-Philippe Amiot, Joel Zuhars, Catherine Proulx, Mynam Valin, Tin Nguyen, Benoit Pelletier, Karine Duval, Alain Richard, Rula Kiblawi, Yannick Boutin