Patents by Inventor Yong Jun LAI
Yong Jun LAI 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: 12245817Abstract: The invention provides devices and methods for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject. Embodiments include a lens that is adapted to fit on the subject's eye, a microstructure disposed in or on the lens, the microstructure having at least one feature that exhibits a change in shape and/or geometry and/or position on the lens in response to a change in curvature of the lens. When the curvature of the lens changes in response to a change in IOP, a corresponding change in shape and/or geometry and/or position of the feature may be used to determine the change in IOP. The change in the feature is detectable in digital images of the lens taken with a mobile electronic device such as a smartphone.Type: GrantFiled: June 23, 2023Date of Patent: March 11, 2025Assignees: Queen's University at Kingston, Kingston Health Sciences CentreInventors: Yong Jun Lai, Kong Ying Xie, Robert James Campbell
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Patent number: 12245816Abstract: A device for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject includes a flexible lens that fits on the eye and changes curvature in response to a change in curvature of the eye. A microchannel disposed in or on the lens has one or more ends that are open to the atmosphere and an indicator solution is disposed in a portion of the 5 microchannel. The microchannel exhibits a change in volume in response to a change in curvature of the lens, which results in a change in position of the indicator solution in the microchannel. The change in position of the indicator solution in the microchannel is indicative of a change in IOP. The change in position of the indicator solution may be detected in digital images of the lens taken with a camera of a mobile electronic device such 0 as a smartphone or a camera worn by the subject.Type: GrantFiled: May 29, 2020Date of Patent: March 11, 2025Assignees: Queen's University at Kingston, Kingston Health Sciences CentreInventors: Angelica Campigotto, Yong Jun Lai, Robert J. Campbell, Stephane Leahy
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Publication number: 20240341598Abstract: Apparatus and method for measuring and monitoring intraocular pressure (IOP) of a subject includes a contact lens disposed on the subject's eye, the contact lens having a polymer matrix and a nanowire network embedded in the polymer matrix. An electrically conductive coil is disposed in close proximity to the contact lens such that it electromagnetically couples with the nanowire network of the contact lens. A resonant frequency of the electrically conductive coil is measured and correlated with the IOP of the subject. Changes in IOP result in deformation of the nanowire network of the contact lens and a resulting change in the resonant frequency, which is measured and correlated with the change in IOP. The electrically conductive coil is adapted to be worn by the subject and may be mounted on a pair of glasses.Type: ApplicationFiled: April 12, 2024Publication date: October 17, 2024Inventor: Yong Jun Lai
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Publication number: 20240164638Abstract: The invention provides devices and methods for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject. Embodiments include a lens that is adapted to fit on the subject's eye, a microstructure disposed in or on the lens, the microstructure having at least one feature that exhibits a change in shape and/or geometry and/or position on the lens in response to a change in curvature of the lens. When the curvature of the lens changes in response to a change in IOP, a corresponding change in shape and/or geometry and/or position of the feature may be used to determine the change in IOP. The change in the feature is detectable in digital images of the lens taken with a mobile electronic device such as a smartphone.Type: ApplicationFiled: June 23, 2023Publication date: May 23, 2024Inventors: Yong Jun Lai, Kong Ying Xie, Robert James Campbell
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Patent number: 11684258Abstract: The invention provides devices and methods for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject. Embodiments include a lens that is adapted to fit on the subject's eye, a microstructure disposed in or on the lens, the microstructure having at least one feature that exhibits a change in shape and/or geometry and/or position on the lens in response to a change in curvature of the lens. When the curvature of the lens changes in response to a change in IOP, a corresponding change in shape and/or geometry and/or position of the feature may be used to determine the change in IOP. The change in the feature is detectable in digital images of the lens taken with a mobile electronic device such as a smartphone.Type: GrantFiled: September 14, 2020Date of Patent: June 27, 2023Assignees: Queen's University at Kingston, Kingston Health Sciences CentreInventors: Yong Jun Lai, Kong Ying Xie, Robert James Campbell
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Publication number: 20220218202Abstract: A device for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject includes a flexible lens that fits on the eye and changes curvature in response to a change in curvature of the eye. A microchannel disposed in or on the lens has one or more ends that are open to the atmosphere and an indicator solution is disposed in a portion of the 5 microchannel. The microchannel exhibits a change in volume in response to a change in curvature of the lens, which results in a change in position of the indicator solution in the microchannel. The change in position of the indicator solution in the microchannel is indicative of a change in IOP. The change in position of the indicator solution may be detected in digital images of the lens taken with a camera of a mobile electronic device such 0 as a smartphone or a camera worn by the subject.Type: ApplicationFiled: May 29, 2020Publication date: July 14, 2022Inventors: Angelica Campigotto, Yong Jun Lai, Robert J. Campbell, Stephane Leahy
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Publication number: 20210093196Abstract: The invention provides devices and methods for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject. Embodiments include a lens that is adapted to fit on the subject's eye, a microstructure disposed in or on the lens, the microstructure having at least one feature that exhibits a change in shape and/or geometry and/or position on the lens in response to a change in curvature of the lens. When the curvature of the lens changes in response to a change in IOP, a corresponding change in shape and/or geometry and/or position of the feature may be used to determine the change in IOP. The change in the feature is detectable in digital images of the lens taken with a mobile electronic device such as a smartphone.Type: ApplicationFiled: September 14, 2020Publication date: April 1, 2021Inventors: Yong Jun Lai, Kong Ying Xie, Robert James Campbell
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Patent number: 10772502Abstract: The invention provides devices and methods for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject. Embodiments include a lens that is adapted to fit on the subject's eye, a microstructure disposed in or on the lens, the microstructure having at least one feature that exhibits a change in shape and/or geometry and/or position on the lens in response to a change in curvature of the lens. When the curvature of the lens changes in response to a change in IOP, a corresponding change in shape and/or geometry and/or position of the feature may be used to determine the change in IOP. The change in the feature is detectable in digital images of the lens taken with a mobile electronic device such as a smartphone.Type: GrantFiled: March 17, 2017Date of Patent: September 15, 2020Assignees: Queen's University at Kingston, Kingston Health Sciences CentreInventors: Yong Jun Lai, Kong Ying Xie, Robert James Campbell
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Publication number: 20170280997Abstract: The invention provides devices and methods for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject. Embodiments include a lens that is adapted to fit on the subject's eye, a microstructure disposed in or on the lens, the microstructure having at least one feature that exhibits a change in shape and/or geometry and/or position on the lens in response to a change in curvature of the lens. When the curvature of the lens changes in response to a change in IOP, a corresponding change in shape and/or geometry and/or position of the feature may be used to determine the change in IOP. The change in the feature is detectable in digital images of the lens taken with a mobile electronic device such as a smartphone.Type: ApplicationFiled: March 17, 2017Publication date: October 5, 2017Inventors: Yong Jun Lai, Kong Ying Xie, Robert James Campbell
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Publication number: 20140166483Abstract: An electrokinetics-assisted sensor for sensing a target material. The sensor may include a microstructure deflectable in response to added mass on its body. The sensor may also include one or more features on or near the microstructure designed to generate an electric field giving rise to one or more electrokinetic effects to drive material towards the microstructure, when an electrical signal is applied to the feature(s). Presence of the target material on the body of the microstructure may cause a response in the microstructure, including a detectable change in deflection of the microstructure.Type: ApplicationFiled: December 19, 2013Publication date: June 19, 2014Applicant: Queen's University at KingstonInventors: Jacky CHOW, Matthew R. TOMKINS, Yong Jun LAI, Aristides DOCOSLIS