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).
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Publication number: 20240358338Abstract: 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: ApplicationFiled: July 5, 2024Publication date: October 31, 2024Inventors: Aaron So, Ting-Yim Lee
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Patent number: 12059283Abstract: 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: GrantFiled: May 16, 2019Date of Patent: August 13, 2024Assignee: LONDON HEALTH SCIENCES CENTRE RESEARCH INC.Inventors: Aaron So, Ting-Yim Lee
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Patent number: 11955237Abstract: 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: GrantFiled: February 3, 2021Date of Patent: April 9, 2024Assignee: Circle Cardiovascular Imaging Inc.Inventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
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Publication number: 20230346330Abstract: 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: ApplicationFiled: August 26, 2021Publication date: November 2, 2023Inventors: Aaron SO, Ting-Yim LEE
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Publication number: 20210228171Abstract: 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: ApplicationFiled: May 16, 2019Publication date: July 29, 2021Inventors: Aaron So, Ting-Yim Lee
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Publication number: 20210158963Abstract: 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: ApplicationFiled: February 3, 2021Publication date: May 27, 2021Applicant: Circle Neurovascular Imaging Inc.Inventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
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Patent number: 10916346Abstract: 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: GrantFiled: June 19, 2019Date of Patent: February 9, 2021Assignee: Circle Neurovascular Imaging Inc.Inventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
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Publication number: 20190304606Abstract: 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: ApplicationFiled: June 19, 2019Publication date: October 3, 2019Inventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
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Patent number: 10373718Abstract: 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: GrantFiled: December 1, 2015Date of Patent: August 6, 2019Assignees: Bijoy Menon Professional Corporation, M and S Goyal Professional Corporation, Supriya M Goyal Professional Corporation, Michael D. Hill Professional Corporation, Andrew Demchuk Professional CorporationInventors: Bijoy K. Menon, Mayank Goyal, Ting Yim Lee, Seonghwan Ahn, Andrew Michael Demchuk, Michael Douglas Hill
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Patent number: 9987162Abstract: 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: GrantFiled: March 20, 2015Date of Patent: June 5, 2018Assignee: THE UNIVERSITY OF WESTERN ONTARIOInventors: Ting-Yim Lee, Mohammad Fazel Bakhsheshi, Lynn Keenliside
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Publication number: 20170143538Abstract: 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: ApplicationFiled: March 20, 2015Publication date: May 25, 2017Inventors: Ting-Yim LEE, Mohammad FAZEL BAKHSHESHI, Lynn KEENLISIDE
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Publication number: 20170109886Abstract: 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: ApplicationFiled: October 28, 2016Publication date: April 20, 2017Inventor: Ting Yim Lee
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Publication number: 20160180042Abstract: 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: ApplicationFiled: December 1, 2015Publication date: June 23, 2016Inventors: Bijoy K. MENON, Mayank GOYAL, Ting Yim LEE, Seonghwan AHN, Andrew Michael DEMCHUK, Michael Douglas HILL
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Publication number: 20150230771Abstract: 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: ApplicationFiled: February 23, 2015Publication date: August 20, 2015Inventor: Ting Yim Lee
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Publication number: 20150066436Abstract: 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: ApplicationFiled: March 4, 2013Publication date: March 5, 2015Inventors: Jonathan Thomas Elliott, Keith St. Lawrence, Mamadou Diop, Ting-Yim Lee, Kenneth M. Tichauer
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Patent number: 8965086Abstract: 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: GrantFiled: September 27, 2013Date of Patent: February 24, 2015Assignee: The University of Western OntarioInventor: Ting Yim Lee
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Publication number: 20140044334Abstract: 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: ApplicationFiled: September 27, 2013Publication date: February 13, 2014Applicant: The University of Western OntarioInventor: Ting Yim Lee
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Publication number: 20110262022Abstract: 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: ApplicationFiled: October 2, 2009Publication date: October 27, 2011Inventor: Ting Yim Lee
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Publication number: 20090051683Abstract: 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: ApplicationFiled: July 15, 2008Publication date: February 26, 2009Inventors: Ravindra Stephen Goonetilleke, Ying Kwong Tang, Yim Lee Au
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Publication number: 20070094064Abstract: 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: ApplicationFiled: December 15, 2006Publication date: April 26, 2007Applicant: MOVARIS CORPORATIONInventors: STEVE YANKOVICH, NATHAN HOOVER, RAJESH BHATIA, ARTHUR ARDIZZONE, DAVE SPRAGUE, HAN-SHEN YUAN, YIM LEE