Patents by Inventor Dao-Yi Yu
Dao-Yi Yu 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: 20240164653Abstract: A method, system, and computer product for determining intracranial pressure (ICP) of a subject non-invasively. The method including: applying at least one selected controlled force to an eye of the subject; imaging retinal vascular pulsation of the eye of the subject over at least one cardiac cycle at the at least one selected controlled force; processing the retinal vascular pulsation images to produce retinal vascular pulsation amplitude data as a time-varying signal; decomposing the time-varying signal into at least two frequency components representing the time-varying signal; determining intracranial pressure from a data basis which includes at least information associated with the frequency components, and wherein the retinal vascular pulsation data includes at least retinal arterial pulsation data.Type: ApplicationFiled: March 17, 2022Publication date: May 23, 2024Applicant: LIONS EYE INSTITUTE LIMITEDInventors: Dao-Yi YU, William Huxley MORGAN, Anmar ABDUL-RAHMAN
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Patent number: 10368759Abstract: A method and apparatus for determining intracranial pressure includes a contact lens; a camera for making a plurality of images of at least one eye of a subject; one or more force transducers for controllably applying a force to the eye via the contact lens; a support system for supporting the camera, the contact lens and the one or more force transducers against the eye; and a computing device for controlling the force applied to the eye by the force transducers and stabilizing the force by negative feedback.Type: GrantFiled: March 6, 2015Date of Patent: August 6, 2019Assignee: LIONS EYE INSTITUTE LIMITEDInventors: Dao-Yi Yu, William Morgan
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Patent number: 9636254Abstract: Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus.Type: GrantFiled: November 17, 2009Date of Patent: May 2, 2017Assignee: AqueSys, Inc.Inventors: Dao-Yi Yu, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan
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Publication number: 20170065193Abstract: A method and apparatus for determining intracranial pressure, includes a contact lens; a camera for making a plurality of images of at least one eye of a subject; one or more force transducers for controllably applying a force to the eye via the contact lens; a support system for supporting the camera, the contact lens and the one or more force transducers against the eye; and a computing device for controlling the force applied to the eye by the force transducers and stabilizing the force by negative feedback.Type: ApplicationFiled: March 6, 2015Publication date: March 9, 2017Applicant: Lions Eye Institute LimitedInventors: Dao-Yi Yu, William Morgan
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Publication number: 20150190280Abstract: An apparatus for irradiating a specimen: that includes an optical transmitter for transmitting light from a laser source; an optical probe configured to receive the light from the optical transmitter and to apply the light upon emission from an optical exit to the specimen; a position detector adapted to detect a position of the optical probe in a longitudinal direction and to output a signal indicative of the position or of a change in the position relative to a surface forward of the optical probe; a drive coupled to the optical probe and adapted to controllably adjust a position of the optical probe in the longitudinal direction; and a feedback controller adapted to receive the signal from the position detector and to control the drive to control the position to keep the optical probe at substantially a constant position relative to the surface forward of the optical probe.Type: ApplicationFiled: July 11, 2013Publication date: July 9, 2015Applicant: Lions Eye Institute LimitedInventors: Dao-Yi Yu, Stephen John Cringle
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Publication number: 20120197175Abstract: The invention generally relates to shunts in which at least a portion of the body includes a drug.Type: ApplicationFiled: December 8, 2011Publication date: August 2, 2012Applicant: AQUESYS, INC.Inventors: Christopher Horvath, Ronald D. Bache, Laszlo O. Romoda, Dao-Yi Yu, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan, Richard L. Lindstrom
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Publication number: 20110118745Abstract: Methods, systems and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable, channel into the selected area of the organ using a delivery apparatus.Type: ApplicationFiled: December 9, 2010Publication date: May 19, 2011Applicant: AQUESYS, INC.Inventors: DAO-YI YU, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan
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Publication number: 20100121248Abstract: Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus.Type: ApplicationFiled: November 17, 2009Publication date: May 13, 2010Applicant: AqueSys, Inc.Inventors: Dao-Yi Yu, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan
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Publication number: 20100121249Abstract: Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus.Type: ApplicationFiled: November 17, 2009Publication date: May 13, 2010Applicant: AqueSys, Inc.Inventors: Dao-Yi Yu, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan
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Publication number: 20100119696Abstract: Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus.Type: ApplicationFiled: November 17, 2009Publication date: May 13, 2010Applicant: AqueSys, Inc.Inventors: Dao-Yi Yu, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan
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Publication number: 20100100104Abstract: Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus.Type: ApplicationFiled: November 17, 2009Publication date: April 22, 2010Applicant: AqueSys, Inc.Inventors: Dao-Yi Yu, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan
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Publication number: 20080108933Abstract: Methods, systems and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable, channel into the selected area of the organ using a delivery apparatus.Type: ApplicationFiled: June 29, 2007Publication date: May 8, 2008Inventors: Dao-Yi Yu, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan
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Patent number: 6544249Abstract: The present invention provides a microfistula tube including a soluble duct, defining a drainage canal having an inner surface, the duct being biocompatible, wherein the microfistula tube is coated with and/or incorporates biological for forming a basement membrane, or an intracellular matrix and a basement membrane. The biological cells may coat the inner surface of the drainage canal, and the microfistula tube may be made of a mouldable material or an absorbable material. The invention also provides an implantation system for the microfistula tube including a microfistula tube and a surgical instrument including an outer tube for penetrating body tissue, an inner tube, and an innermost rod, wherein the outer tube, the inner tube and the innermost rod are coaxial, the outer tube is adapted to receive said microfistula tube, whereby the inner tube may be used to push the microfistula tube into position and the innermost rod provides mechanical support during implantation of the microfistula tube.Type: GrantFiled: July 15, 1999Date of Patent: April 8, 2003Assignee: The Lions Eye Institute of Western Australia IncorporatedInventors: Dao-Yi Yu, William Huxley Morgan
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Patent number: 6264665Abstract: A system (10) for ocular ultramicrosurgery a ring (12) for immobilising eye (14) of a patient. The incision point (P) on the eye (14) for surgical tools is marked by a marker (16) that is generated by intersecting tire beams of lasers (104 and 106). The intersection point of the laser beams is fixed in space. In order to move the patient's eye (14) so that point (P) coincides with that fixed point in space, the patient's head (52) is fixed to a head positioner (24). The head positioner is operated by a surgeon (26) through joystick (34) and computer (32) to ensure registration of point (P) and the point designated by the intersecting laser beams. All surgical tools used in the system (10) are supported, positioned and operated or worked by a tool support and positioning system (18). The system (18) comprises a stereotactic manipulator (20) and a tool translation table (22) which is supported on the manipulator (20).Type: GrantFiled: October 16, 1998Date of Patent: July 24, 2001Assignee: The Lions Eye Institute of Western Australia IncorporatedInventors: Dao-Yi Yu, Ian Jeffrey Constable, Stephen John Cringle