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: 9554745Abstract: 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. The visual alignment guide may include a second inertial sensor and/or a laser emitting element.Type: GrantFiled: June 2, 2014Date of Patent: January 31, 2017Assignee: ORTHOSOFT INC.Inventors: Trong Tin Nguyen, Pierre Couture
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Publication number: 20170007269Abstract: 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: ApplicationFiled: July 28, 2016Publication date: January 12, 2017Inventors: Benoit PELLETIER, Karine DUVAL, Trong Tin NGUYEN, Pierre COUTURE, Louis-Philippe AMIOT, Yannick BOUTIN, Alain RICHARD, Catherine PROULX
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Patent number: 9433473Abstract: A tool for digitizing a mechanical axis of a tibia using a computer-assisted surgery system is described. The tool includes upper and lower mounting ends interconnected by an alignment rod extending therebetween. The upper mounting end is releasably fastenable to an upper reference point on a tibial plateau and the lower mounting end includes a self-centering malleoli engaging mechanism having opposed caliper arms displaceable in a common plane relative to each other for clamping engagement with the medial and lateral malleoli of the ankle. At least one trackable member is mounted to the alignment rod of the tool and is in communication with the computer assisted surgery system for providing at least orientation information of the alignment rod. The mechanical axis of the tibia is parallel to the alignment rod and extends between the upper and lower reference points when the tool is mounted on the tibia.Type: GrantFiled: September 3, 2013Date of Patent: September 6, 2016Assignee: 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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Publication number: 20160089153Abstract: 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: ApplicationFiled: September 25, 2014Publication date: March 31, 2016Inventors: Pierre COUTURE, Trong Tin NGUYEN, Anselm Jakob NEUROHR, Jean-Sébastien MÉRETTE
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Publication number: 20150342516Abstract: 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. The visual alignment guide may include a second inertial sensor and/or a laser emitting element.Type: ApplicationFiled: June 2, 2014Publication date: December 3, 2015Applicant: ORTHOSOFT INC.Inventors: Trong Tin NGUYEN, Pierre COUTURE
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Patent number: 8812075Abstract: A contoured bioelectrical signal electrode and a sensor headset are disclosed. A contoured bioelectrical signal electrode that also includes a conductive fabric is also disclosed. In some embodiments, a contoured bioelectrical signal sensor is provided that includes an electrode set and is connected to a holder that is connected to a headset.Type: GrantFiled: September 14, 2012Date of Patent: August 19, 2014Assignee: NeuroSky, Inc.Inventors: Tin Nguyen, Cheng-I Chuang, KooHyoung Lee, Jong-Jin Lim
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Publication number: 20140005673Abstract: A tool for digitizing a mechanical axis of a tibia using a computer-assisted surgery system is described. The tool includes upper and lower mounting ends interconnected by an alignment rod extending therebetween. The upper mounting end is releasably fastenable to an upper reference point on a tibial plateau and the lower mounting end includes a self-centering malleoli engaging mechanism having opposed caliper arms displaceable in a common plane relative to each other for clamping engagement with the medial and lateral malleoli of the ankle. At least one trackable member is mounted to the alignment rod of the tool and is in communication with the computer assisted surgery system for providing at least orientation information of the alignment rod. The mechanical axis of the tibia is parallel to the alignment rod and extends between the upper and lower reference points when the tool is mounted on the tibia.Type: ApplicationFiled: September 3, 2013Publication date: January 2, 2014Applicant: 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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Publication number: 20130317510Abstract: 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 24, 2013Publication date: November 28, 2013Applicant: Zimmer, Inc.Inventors: Pierre Couture, Trong Tin Nguyen, Anselm Jakob Neurohr, Jean-Sebastien Merette, Jean-Guillaume Abiven, Alain Richard
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Patent number: 8551108Abstract: A tool for digitizing a mechanical axis of a tibia using a computer-assisted surgery system is described. The tool includes upper and lower mounting ends interconnected by an alignment rod extending therebetween. The upper mounting end is releasably fastenable to an upper reference point on a tibial plateau and the lower mounting end includes a self-centering malleoli engaging mechanism having opposed caliper arms displaceable in a common plane relative to each other for clamping engagement with the medial and lateral malleoli of the ankle. At least one trackable member is mounted to the alignment rod of the tool and is in communication with the computer assisted surgery system for providing at least orientation information of the alignment rod. The mechanical axis of the tibia is parallel to the alignment rod and extends between the upper and lower reference points when the tool is mounted on the tibia.Type: GrantFiled: August 31, 2010Date of Patent: October 8, 2013Assignee: 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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Publication number: 20130073033Abstract: 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 23, 2012Publication date: March 21, 2013Applicant: 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: 20130066184Abstract: A contoured bioelectrical signal electrode and a sensor headset are disclosed. A contoured bioelectrical signal electrode that also includes a conductive fabric is also disclosed. In some embodiments, a contoured bioelectrical signal sensor is provided that includes an electrode set and is connected to a holder that is connected to a headset.Type: ApplicationFiled: September 14, 2012Publication date: March 14, 2013Applicant: NEUROSKY, INC.Inventors: Tin Nguyen, Cheng-I Chuang, Koo Hyoung Lee, Jong-Jin Lim
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Patent number: 8301218Abstract: A contoured bioelectrical signal electrode and a sensor headset are disclosed. In some embodiments, an apparatus for a bioelectrical signal sensor includes a contoured bioelectrical signal sensor connected to a holder comprising an electrode set, the electrode set including a contoured electrode, in which the contoured electrode is a dry electrode, in which the contoured electrode includes a cap portion with a protruding shape for maintaining contact with a user's head and a post portion protruding out of a side of the cap portion opposite the protruding shape, the post portion having a retaining ridge, in which the cap portion with the protruding shape and the post are electrically connected. In some embodiments, the contoured electrode is wrapped in a conductive fabric.Type: GrantFiled: September 12, 2008Date of Patent: October 30, 2012Assignee: NeuroSky, Inc.Inventors: Tin Nguyen, Cheng-I Chuang, Koo Hyoung Lee, Jong Jin Lim
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Patent number: 8289429Abstract: An image sensor array includes image sensors having photo TFTs to generate photocurrent in response to received images. The photo TFTs each have their respective gate electrodes and source electrodes independently biased to reduce the effects of dark current. Storage capacitors are coupled to each photo TFT and discharged upon generation of a photocurrent. Each storage capacitor is coupled to a readout TFT that passes a current from the storage capacitor to a data line. The photo TFT may be disposed above the storage capacitor to increase the exposed surface area of the photo TFT.Type: GrantFiled: August 9, 2010Date of Patent: October 16, 2012Assignee: Apple Inc.Inventors: Willem den Boer, Tin Nguyen, Patrick J. Green
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Patent number: 8267993Abstract: 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: June 9, 2006Date of Patent: September 18, 2012Assignee: Coroneo, Inc.Inventors: Trong Tin Nguyen, Neil Bulman-Fleming, Anthony Paolitto, Adrian Ranga, Valerio Valentini
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Publication number: 20120220859Abstract: 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: February 25, 2011Publication date: August 30, 2012Inventors: Louis-Philippe Amiot, Pierre Couture, Catherine Proulx, Trong Tin Nguyen, Myriam Valin
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Publication number: 20120053594Abstract: A tool for digitizing a mechanical axis of a tibia using a computer-assisted surgery system is described. The tool includes upper and lower mounting ends interconnected by an alignment rod extending therebetween. The upper mounting end is releasably fastenable to an upper reference point on a tibial plateau and the lower mounting end includes a self-centering malleoli engaging mechanism having opposed caliper arms displaceable in a common plane relative to each other for clamping engagement with the medial and lateral malleoli of the ankle. At least one trackable member is mounted to the alignment rod of the tool and is in communication with the computer assisted surgery system for providing at least orientation information of the alignment rod. The mechanical axis of the tibia is parallel to the alignment rod and extends between the upper and lower reference points when the tool is mounted on the tibia.Type: ApplicationFiled: August 31, 2010Publication date: March 1, 2012Inventors: Benoit PELLETIER, Karine Duval, Trong Tin Nguyen, Pierre Couture, Louis-Philippe Amiot, Yannick Boutin, Alain Richard, Catherine Proulx
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Publication number: 20120029389Abstract: 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: ApplicationFiled: July 30, 2010Publication date: February 2, 2012Inventors: Louis-Philippe Amiot, Joel Zuhars, Catherine Proulx, Mynam Valin, Tin Nguyen, Benoit Pelletier, Karine Duval Duval, Alain Richard, Rula Kiblawi, Yannick Boutin
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Publication number: 20100302419Abstract: An image sensor array includes image sensors having photo TFTs to generate photocurrent in response to received images. The photo TFTs each have their respective gate electrodes and source electrodes independently biased to reduce the effects of dark current. Storage capacitors are coupled to each photo TFT and discharged upon generation of a photocurrent. Each storage capacitor is coupled to a readout TFT that passes a current from the storage capacitor to a data line. The photo TFT may be disposed above the storage capacitor to increase the exposed surface area of the photo TFT.Type: ApplicationFiled: August 9, 2010Publication date: December 2, 2010Applicant: Apple Inc.Inventors: Willem den Boer, Tin Nguyen, Patrick J. Green
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Patent number: 7773139Abstract: An image sensor array includes image sensors having photo TFTs to generate photocurrent in response to received images. The photo TFTs each have their respective gate electrodes and source electrodes independently biased to reduce the effects of dark current. Storage capacitors are coupled to each photo TFT and discharged upon generation of a photocurrent. Each storage capacitor is coupled to a readout TFT that passes a current from the storage capacitor to a data line. The photo TFT may be disposed above the storage capacitor to increase the exposed surface area of the photo TFT.Type: GrantFiled: April 16, 2004Date of Patent: August 10, 2010Assignee: Apple Inc.Inventors: Willem den Boer, Tin Nguyen, Patrick J. Green
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Publication number: 20090112077Abstract: A contoured bioelectrical signal electrode and a sensor headset are disclosed. A contoured bioelectrical signal electrode that also includes a conductive fabric is also disclosed.Type: ApplicationFiled: September 12, 2008Publication date: April 30, 2009Inventors: Tin Nguyen, Cheng-l Chuang, Koo Hyoung Lee, Jong Jin Lim