Patents by Inventor Yim Lee

Yim Lee 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).

  • Publication number: 20240358338
    Abstract: Described herein is a computer implemented method for dynamic angiographic imaging comprising: obtaining image data comprising a plurality of corresponding images capturing at least a portion of both an increase phase and a decline phase of a contrast agent in a blood vessel of interest; generating at least one time-enhancement curve of the contrast agent based on the image data; determining a blood flow characteristic in the blood vessel of interest based on the time-enhancement curve. Systems for implementing the method and computer readable media incorporating the method are also described.
    Type: Application
    Filed: July 5, 2024
    Publication date: October 31, 2024
    Inventors: Aaron So, Ting-Yim Lee
  • Patent number: 12059283
    Abstract: A computer implemented method for dynamic angiographic imaging including: obtaining image data comprising a plurality of corresponding images capturing at least a portion of both an increase phase and a decline phase of a contrast agent in a blood vessel of interest; generating at least one time-enhancement curve of the contrast agent based on the image data; determining a blood flow characteristic in the blood vessel of interest based on the time-enhancement curve. Systems for implementing the method and computer readable media incorporating the method are also described.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: August 13, 2024
    Assignee: LONDON HEALTH SCIENCES CENTRE RESEARCH INC.
    Inventors: Aaron So, Ting-Yim Lee
  • Patent number: 11955237
    Abstract: An automated system and method for assisting in decision making for the treatment of stroke patients is provided, and specifically for assisting a physician whether the patient should be administered a drug or transferred to another hospital to undergo an endovascular thrombectomy procedure. A variety of factors are input into the system with limited human intervention and a tool automatically determines the probability of whether the patient will have a better outcome if transferred or not. The factors include clinical factors, imaging factors and time to transfer factors. The tool includes processes for automatically determining several imaging factors, including the determination of clot length, collateral blood flow, the presence of forward blood flow within and around the clot, and the clot permeability. The tool has capability to continuously update the treatment protocol and other output results using current clinical, health system or other relevant information or feedback.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: April 9, 2024
    Assignee: Circle Cardiovascular Imaging Inc.
    Inventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
  • Publication number: 20230346330
    Abstract: A computer implemented method for blood flow imaging including: obtaining image data including a plurality of corresponding images capturing at least a portion of both an increase phase and a decline phase of a contrast agent in a cardiovasculature of interest; selecting a target voxel in the image data; generating a time-enhancement curve of the contrast agent based on the image data; selecting first and second time points from the time-enhancement curve; determining a rate of change of enhancement by subtraction of image data at the selected first and second time points; determining a blood flow characteristic of the target voxel based on the rate of change of enhancement. Systems and non-transitory computer-readable media for executing the method are also provided.
    Type: Application
    Filed: August 26, 2021
    Publication date: November 2, 2023
    Inventors: Aaron SO, Ting-Yim LEE
  • Publication number: 20210228171
    Abstract: A computer implemented method for dynamic angiographic imaging including: obtaining image data comprising a plurality of corresponding images capturing at least a portion of both an increase phase and a decline phase of a contrast agent in a blood vessel of interest; generating at least one time-enhancement curve of the contrast agent based on the image data; determining a blood flow characteristic in the blood vessel of interest based on the time-enhancement curve. Systems for implementing the method and computer readable media incorporating the method are also described.
    Type: Application
    Filed: May 16, 2019
    Publication date: July 29, 2021
    Inventors: Aaron So, Ting-Yim Lee
  • Publication number: 20210158963
    Abstract: An automated system and method for assisting in decision making for the treatment of stroke patients is provided, and specifically for assisting a physician whether the patient should be administered a drug or transferred to another hospital to undergo an endovascular thrombectomy procedure. A variety of factors are input into the system with limited human intervention and a tool automatically determines the probability of whether the patient will have a better outcome if transferred or not. The factors include clinical factors, imaging factors and time to transfer factors. The tool includes processes for automatically determining several imaging factors, including the determination of clot length, collateral blood flow, the presence of forward blood flow within and around the clot, and the clot permeability. The tool has capability to continuously update the treatment protocol and other output results using current clinical, health system or other relevant information or feedback.
    Type: Application
    Filed: February 3, 2021
    Publication date: May 27, 2021
    Applicant: Circle Neurovascular Imaging Inc.
    Inventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
  • Patent number: 10916346
    Abstract: An automated system and method for assisting in decision making for the treatment of stroke patients is provided, and specifically for assisting a physician whether the patient should be administered a drug or transferred to another hospital to undergo an endovascular thrombectomy procedure. A variety of factors are input into the system with limited human intervention and a tool automatically determines the probability of whether the patient will have a better outcome if transferred or not. The factors include clinical factors, imaging factors and time to transfer factors. The tool includes processes for automatically determining several imaging factors, including the determination of clot length, collateral blood flow, the presence of forward blood flow within and around the clot, and the clot permeability. The tool has capability to continuously update the treatment protocol and other output results using current clinical, health system or other relevant information or feedback.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: February 9, 2021
    Assignee: Circle Neurovascular Imaging Inc.
    Inventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
  • Publication number: 20190304606
    Abstract: An automated system and method for assisting in decision making for the treatment of stroke patients is provided, and specifically for assisting a physician whether the patient should be administered a drug or transferred to another hospital to undergo an endovascular thrombectomy procedure. A variety of factors are input into the system with limited human intervention and a tool automatically determines the probability of whether the patient will have a better outcome if transferred or not. The factors include clinical factors, imaging factors and time to transfer factors. The tool includes processes for automatically determining several imaging factors, including the determination of clot length, collateral blood flow, the presence of forward blood flow within and around the clot, and the clot permeability. The tool has capability to continuously update the treatment protocol and other output results using current clinical, health system or other relevant information or feedback.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 3, 2019
    Inventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
  • Patent number: 10373718
    Abstract: An automated system and method for assisting in decision making for the treatment of stroke patients is provided, and specifically for assisting a physician whether the patient should be administered a drug or transferred to another hospital to undergo an endovascular thrombectomy procedure. A variety of factors are input into the system with limited human intervention and a tool automatically determines the probability of whether the patient will have a better outcome if transferred or not. The factors include clinical factors, imaging factors and time to transfer factors. The tool includes processes for automatically determining several imaging factors, including the determination of clot length, collateral blood flow, the presence of forward blood flow within and around the clot, and the clot permeability. The tool has capability to continuously update the treatment protocol and other output results using current clinical, health system or other relevant information or feedback.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 6, 2019
    Assignees: Bijoy Menon Professional Corporation, M and S Goyal Professional Corporation, Supriya M Goyal Professional Corporation, Michael D. Hill Professional Corporation, Andrew Demchuk Professional Corporation
    Inventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
  • Patent number: 9987162
    Abstract: Described herein is a head cooling system comprising: a source of compressed breathable gas; a vortex tube comprising an inlet, a hot gas outlet and a cold gas outlet, the inlet operably connected to the source of compressed breathable gas; and an interface for delivering cooled gas to a nasopharyngeal cavity in fluid communication with the cold gas outlet. The head cooling system may be used in a method to reduce neurodegeneration in a subject, for example neurodegeneration from ischemia, anoxia, cardiac arrest, trauma or neurodegenerative disease. The head cooling system may also be used in a method to prophylactically protect a subject at risk of neurodegeneration, for example neurodegeneration from ischemia, anoxia, cardiac arrest, trauma or neurodegenerative disease.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: June 5, 2018
    Assignee: THE UNIVERSITY OF WESTERN ONTARIO
    Inventors: Ting-Yim Lee, Mohammad Fazel Bakhsheshi, Lynn Keenliside
  • Publication number: 20170143538
    Abstract: Described herein is a head cooling system comprising: a source of compressed breathable gas; a vortex tube comprising an inlet, a hot gas outlet and a cold gas outlet, the inlet operably connected to the source of compressed breathable gas; and an interface for delivering cooled gas to a nasopharyngeal cavity in fluid communication with the cold gas outlet. The head cooling system may be used in a method to reduce neurodegeneration in a subject, for example neurodegeneration from ischemia, anoxia, cardiac arrest, trauma or neurodegenerative disease. The head cooling system may also be used in a method to prophylactically protect a subject at risk of neurodegeneration, for example neurodegeneration from ischemia, anoxia, cardiac arrest, trauma or neurodegenerative disease.
    Type: Application
    Filed: March 20, 2015
    Publication date: May 25, 2017
    Inventors: Ting-Yim LEE, Mohammad FAZEL BAKHSHESHI, Lynn KEENLISIDE
  • Publication number: 20170109886
    Abstract: A method of processing a plurality of time separated images comprises selecting a plurality of imaging units in each image; measuring a temporal difference in each imaging unit; and selecting temporal differences above a threshold limit.
    Type: Application
    Filed: October 28, 2016
    Publication date: April 20, 2017
    Inventor: Ting Yim Lee
  • Publication number: 20160180042
    Abstract: An automated system and method for assisting in decision making for the treatment of stroke patients is provided, and specifically for assisting a physician whether the patient should be administered a drug or transferred to another hospital to undergo an endovascular thrombectomy procedure. A variety of factors are input into the system with limited human intervention and a tool automatically determines the probability of whether the patient will have a better outcome if transferred or not. The factors include clinical factors, imaging factors and time to transfer factors. The tool includes processes for automatically determining several imaging factors, including the determination of clot length, collateral blood flow, the presence of forward blood flow within and around the clot, and the clot permeability. The tool has capability to continuously update the treatment protocol and other output results using current clinical, health system or other relevant information or feedback.
    Type: Application
    Filed: December 1, 2015
    Publication date: June 23, 2016
    Inventors: Bijoy K. MENON, Mayank GOYAL, Ting Yim LEE, Seonghwan AHN, Andrew Michael DEMCHUK, Michael Douglas HILL
  • Publication number: 20150230771
    Abstract: A method of processing a plurality of time separated images comprises selecting a plurality of imaging units in each image; measuring a temporal difference in each imaging unit; and selecting temporal differences above a threshold limit.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 20, 2015
    Inventor: Ting Yim Lee
  • Publication number: 20150066436
    Abstract: A method of determining dynamic parameters for a plurality of sub-regions within an interrogation region comprises processing optical image data and measurements of a concentration of contrast agent entering each of the sub-regions to determine a flow-scaled impulse residue function for each of the sub-regions, and calculating dynamic parameters for each sub-region from a respective flow-scaled impulse residue function.
    Type: Application
    Filed: March 4, 2013
    Publication date: March 5, 2015
    Inventors: Jonathan Thomas Elliott, Keith St. Lawrence, Mamadou Diop, Ting-Yim Lee, Kenneth M. Tichauer
  • Patent number: 8965086
    Abstract: A method of processing a plurality of time separated images comprises selecting a plurality of imaging units in each image; measuring a temporal difference in each imaging unit; and selecting temporal differences above a threshold limit.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: February 24, 2015
    Assignee: The University of Western Ontario
    Inventor: Ting Yim Lee
  • Publication number: 20140044334
    Abstract: A method of processing a plurality of time separated images comprises selecting; a plurality of imaging units in each image; measuring a temporal difference in each imaging unit; and selecting temporal differences above a threshold limit.
    Type: Application
    Filed: September 27, 2013
    Publication date: February 13, 2014
    Applicant: The University of Western Ontario
    Inventor: Ting Yim Lee
  • Publication number: 20110262022
    Abstract: A method of processing a plurality of time separated images comprises selecting a plurality of imaging units in each image; measuring a temporal difference in each imaging unit; and selecting temporal differences above a threshold limit.
    Type: Application
    Filed: October 2, 2009
    Publication date: October 27, 2011
    Inventor: Ting Yim Lee
  • Publication number: 20090051683
    Abstract: A foot shape generation system that is based on digital photography and a database to provide three-dimensional point cloud information for footwear designers and manufacturers to realize footwear customization. The subject 102 stands on a self-contained platform equipped with cameras 601, 602, 603, 604 and a computer 104. A set of digital cameras 601, 602, 603, 604 are positioned to capture the images from different views. A special calibration jig 1401 is preferably used for the software to convert image pixel data into real world dimensions. The software also extracts the foot profiles 1509 from the images 1504 and thereafter searches for similar foot shapes from a foot shape database 1513. A real-time mean foot shape 1515 is then generated from the similar shapes, which is thereafter modified 15116 using the person's dimensions and the foot profiles obtained. The three-dimensional coordinates 1517 of the modified foot shape can then be used for shoe last-making or fitting the foot to footwear.
    Type: Application
    Filed: July 15, 2008
    Publication date: February 26, 2009
    Inventors: Ravindra Stephen Goonetilleke, Ying Kwong Tang, Yim Lee Au
  • Publication number: 20070094064
    Abstract: A method for financial system process automation comprising a first process for scheduling financial account tasks which are in-scope and a second process for evaluating rules for placing financial account tasks “in-scope”. A method for efficiently and systematically selecting tasks for scheduling from a list of conditionally needed tasks that would be wasteful to consider on a daily basis.
    Type: Application
    Filed: December 15, 2006
    Publication date: April 26, 2007
    Applicant: MOVARIS CORPORATION
    Inventors: STEVE YANKOVICH, NATHAN HOOVER, RAJESH BHATIA, ARTHUR ARDIZZONE, DAVE SPRAGUE, HAN-SHEN YUAN, YIM LEE