Patents by Inventor Keerthighaan Kanagasegar
Keerthighaan Kanagasegar 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: 12133772Abstract: A surgical robot positions an end effector that guides movement of a surgical tool during a surgical procedure on a patient anatomical structure. A tracking system determines a pose of the anatomical structure and a pose of the end effector and/or the surgical tool. A navigation controller determines a target pose for the surgical tool based on a surgical plan and based on the pose of the anatomical structure, and generates steering information based on the target pose for the surgical tool, the pose of the anatomical structure, and the pose of the surgical tool and/or the end effector. The steering information indicates where the surgical tool and/or the end effector need to be moved. An AR headset controller receives the steering information from the navigation controller and displays a graphical representation of the steering information and/or the target pose for the surgical tool on a see-through display screen.Type: GrantFiled: December 10, 2019Date of Patent: November 5, 2024Assignee: Globus Medical, Inc.Inventors: Thomas Calloway, Weston Healy, Isaac Dulin, Dale Earle, Keiichi Matsuda, Norbert Johnson, Bessam Al Jewad, Christine Russ, Michael Robinson, Keerthighaan Kanagasegar
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Publication number: 20240129451Abstract: A head-mounted extended reality (XR) display device includes a rigid mounting element coupled to a frame. The XR display device further includes right-side and left-side visible light cameras coupled to the rigid mounting element, right-side and left-side near-infrared (NIR) cameras coupled to the rigid mounting element, and an NIR light-emitting diode (LED) configured to illuminate a region within a field of view of the NIR cameras. The visible light cameras are configured to capture stereoscopic visible light images within a field of view of the user when the user is wearing the frame, and the NIR cameras are configured to capture stereoscopic NIR images within the field of view of the user when the user is wearing the frame.Type: ApplicationFiled: October 9, 2023Publication date: April 18, 2024Inventors: Weston Healy, Thomas Calloway, Norbert Johnson, Keerthighaan Kanagasegar
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Patent number: 11838493Abstract: A head-mounted extended reality (XR) display device includes a rigid mounting element coupled to a frame. The XR display device further includes right-side and left-side visible light cameras coupled to the rigid mounting element, right-side and left-side near-infrared (NIR) cameras coupled to the rigid mounting element, and an NIR light-emitting diode (LED) configured to illuminate a region within a field of view of the NIR cameras. The visible light cameras are configured to capture stereoscopic visible light images within a field of view of the user when the user is wearing the frame, and the NIR cameras are configured to capture stereoscopic NIR images within the field of view of the user when the user is wearing the frame.Type: GrantFiled: September 17, 2021Date of Patent: December 5, 2023Assignee: Globus Medical Inc.Inventors: Weston Healy, Thomas Calloway, Norbert Johnson, Keerthighaan Kanagasegar
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Publication number: 20230263390Abstract: Objective refraction error measuring apparatuses are known. Once the measurement is done, there is no known method for confirming if the measurements are correct. Disclosed is an apparatus (200) wherein once the error is measured, the determined values of the error are used to set the characteristics of a tunable lens (230) so as to correct the error in the vision of the subject. The objective error is measured again while the subject viewing through the tunable lens so set. Objective refraction error is again measured. If the error measured is now within predefined limits, the first measurement is deemed correct and the values are out put so that glasses with those values may be prescribed to the subject.Type: ApplicationFiled: July 8, 2021Publication date: August 24, 2023Inventors: Venkatakrishnan SRINIVASAN, Revathy Manthri RANGARAJ, Subhajit Banerjee PURNAPATRA, Keerthighaan KANAGASEGAR
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Publication number: 20230255473Abstract: This disclosure discloses an apparatus and method thereof for a comprehensive visual function testing apparatus. A plurality of visual test stimuli may be spatiotemporally sequenced and presented to the subject undergoing visual function tests including, but not limited to, visual acuity test, stereoscopic vision test, field of vision test and contrast sensitivity test. Furthermore, by combining all the elements under the same computational device, it streamlines the conventional visual function testing process, provides automated visual function testing of subjects, and refraction correction when required, such as for perimetry testing. Such an apparatus opens up unprecedented possibilities for refining the visual function testing process. High degree of integration resulting from adoption of the features disclosed, a variety of compact, portable, wearable embodiments may be achieved.Type: ApplicationFiled: September 7, 2021Publication date: August 17, 2023Inventors: Venkatakrishnan SRINIVASAN, Revathy Manthri RANGARAJ, Subhajit Banerjee PURNAPATRA, Ranjith Kumar, Keerthighaan KANAGASEGAR
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Patent number: 11426178Abstract: Systems and methods for resecting a knee joint using a navigated pin guide driver system. The navigated pin guide driver system communicates with a navigation system to aid a user in placing cut block pins into the knee joint. The navigated pin guide driver system may include a handle, a reference element that electronically communicates with the navigation system, one or more pin guide tubes that may correspond to one or more cut blocks, and a distal tip that is configured to attach to the bone.Type: GrantFiled: April 7, 2020Date of Patent: August 30, 2022Assignee: Globus Medical Inc.Inventors: Olivier Chappuis, Szymon Kostrzewski, Timothy Blackwell, Hayden Cameron, Stephen Cicchini, Peter Eckert, Keerthighaan Kanagasegar, Jason Zappacosta, Khiem Pham
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Publication number: 20220257263Abstract: Systems and methods for resecting a knee joint using a navigated pin guide driver system. The navigated pin guide driver system communicates with a navigation system to aid a user in placing cut block pins into the knee joint. The navigated pin guide driver system may include a handle, a reference element that electronically communicates with the navigation system, one or more pin guide tubes that may correspond to one or more cut blocks, and a distal tip that is configured to attach to the bone.Type: ApplicationFiled: March 31, 2022Publication date: August 18, 2022Inventors: Olivier Chappuis, Szymon Kostrzewski, Timothy Blackwell, Hayden Cameron, Stephen Cicchini, Peter Eckert, Keerthighaan Kanagasegar, Jason Zappacosta, Khiem Pham
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Publication number: 20220007006Abstract: A head-mounted extended reality (XR) display device includes a rigid mounting element coupled to a frame. The XR display device further includes right-side and left-side visible light cameras coupled to the rigid mounting element, right-side and left-side near-infrared (NIR) cameras coupled to the rigid mounting element, and an NIR light-emitting diode (LED) configured to illuminate a region within a field of view of the NIR cameras. The visible light cameras are configured to capture stereoscopic visible light images within a field of view of the user when the user is wearing the frame, and the NIR cameras are configured to capture stereoscopic NIR images within the field of view of the user when the user is wearing the frame.Type: ApplicationFiled: September 17, 2021Publication date: January 6, 2022Inventors: Weston Healy, Thomas Calloway, Norbert Johnson, Keerthighaan Kanagasegar
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Publication number: 20210391058Abstract: A surgical guidance system is disclosed for computer assisted navigation during surgery. The surgical guidance system is configured to obtain post-operative feedback data provided by distributed networked computers regarding surgical outcomes for a plurality of patients, and train a machine learning model based on the post-operative feedback data. The surgical guidance system is further configured to obtain pre-operative data from one of the distributed network computers characterizing a defined patient, and generate a surgical plan for the defined patient based on processing the pre-operative data through the machine learning model. The surgical plan is provided to a display device for review by a user.Type: ApplicationFiled: June 16, 2020Publication date: December 16, 2021Inventors: Szymon Kostrzewski, Daniel Gehriger, Norbert Johnson, Keerthighaan Kanagasegar
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Publication number: 20210352267Abstract: A head-mounted extended reality (XR) display device includes a rigid mounting element coupled to a frame. The XR display device further includes right-side and left-side visible light cameras coupled to the rigid mounting element, right-side and left-side near-infrared (NIR) cameras coupled to the rigid mounting element, and an NIR light-emitting diode (LED) configured to illuminate a region within a field of view of the NIR cameras. The visible light cameras are configured to capture stereoscopic visible light images within a field of view of the user when the user is wearing the frame, and the NIR cameras are configured to capture stereoscopic NIR images within the field of view of the user when the user is wearing the frame.Type: ApplicationFiled: May 8, 2020Publication date: November 11, 2021Inventors: Weston Healy, Thomas Calloway, Norbert Johnson, Keerthighaan Kanagasegar
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Patent number: 11153555Abstract: A head-mounted extended reality (XR) display device includes a rigid mounting element coupled to a frame. The XR display device further includes right-side and left-side visible light cameras coupled to the rigid mounting element, right-side and left-side near-infrared (NIR) cameras coupled to the rigid mounting element, and an NIR light-emitting diode (LED) configured to illuminate a region within a field of view of the NIR cameras. The visible light cameras are configured to capture stereoscopic visible light images within a field of view of the user when the user is wearing the frame, and the NIR cameras are configured to capture stereoscopic NIR images within the field of view of the user when the user is wearing the frame.Type: GrantFiled: May 8, 2020Date of Patent: October 19, 2021Assignee: Globus Medical Inc.Inventors: Weston Healy, Thomas Calloway, Norbert Johnson, Keerthighaan Kanagasegar
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Publication number: 20210315590Abstract: Systems and methods for resecting a knee joint using a navigated pin guide driver system. The navigated pin guide driver system communicates with a navigation system to aid a user in placing cut block pins into the knee joint. The navigated pin guide driver system may include a handle, a reference element that electronically communicates with the navigation system, one or more pin guide tubes that may correspond to one or more cut blocks, and a distal tip that is configured to attach to the bone.Type: ApplicationFiled: April 7, 2020Publication date: October 14, 2021Inventors: Olivier Chappuis, Szymon Kostrzewski, Timothy Blackwell, Hayden Cameron, Stephen Cicchini, Peter Eckert, Keerthighaan Kanagasegar, Jason Zappacosta, Khiem Pham
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Publication number: 20210169581Abstract: A surgical system including a XR headset, a tracking system, and an XR headset controller. The XR headset can be worn by a user during a surgical procedure and includes a see-through display screen configured to display a world-registered XR image and to allow at least a portion of a real-world scene to pass therethrough for viewing by the user. The tracking system can determine a real-world pose of the XR headset and a real-world pose of a real-world element. The real-world pose of the XR headset and the real-world pose of the real-world element being determined relative to a real-world coordinate system. The XR headset controller can generate the world-registered XR image based on the real-world pose of the XR headset and the real-world pose of the real-world element. The world-registered XR image includes a virtual element that is generated based on a characteristic of the real-world element.Type: ApplicationFiled: February 4, 2020Publication date: June 10, 2021Inventors: Thomas Calloway, Isaac Dulin, Keiichi Matsuda, Christine Russ, Keerthighaan Kanagasegar, Amelia Raphaelson
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Publication number: 20210169605Abstract: A surgical robot positions an end effector that guides movement of a surgical tool during a surgical procedure on a patient anatomical structure. A tracking system determines a pose of the anatomical structure and a pose of the end effector and/or the surgical tool. A navigation controller determines a target pose for the surgical tool based on a surgical plan and based on the pose of the anatomical structure, and generates steering information based on the target pose for the surgical tool, the pose of the anatomical structure, and the pose of the surgical tool and/or the end effector. The steering information indicates where the surgical tool and/or the end effector need to be moved. An AR headset controller receives the steering information from the navigation controller and displays a graphical representation of the steering information and/or the target pose for the surgical tool on a see-through display screen.Type: ApplicationFiled: December 10, 2019Publication date: June 10, 2021Inventors: Thomas Calloway, Weston Healy, Isaac Dulin, Dale Earle, Keiichi Matsuda, Norbert Johnson, Bessam Al Jewad, Christine Russ, Michael Robinson, Keerthighaan Kanagasegar