Patents by Inventor John R. Hetling
John R. Hetling 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: 20230389874Abstract: The present disclosure provides electroretinography devices configured to detect biopotential signals from an eye of a subject. In some embodiments, the device is configured to prevent the subject's eyelids from closing over the device when placed in contact with the anterior surface of the subject's eye. In some embodiments, the device has a Young's modulus of no more than about 50 MPa. In some embodiments, the device includes a diffusing or refracting element configured to scatter, focus or diverge incident light. In other embodiments, the device includes a void through which incident light can enter the subject's eye without passing through any portion of the device.Type: ApplicationFiled: August 17, 2023Publication date: December 7, 2023Inventors: John R. Hetling, Safa Rahmani, Tamas Ban
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Patent number: 11766208Abstract: The present disclosure provides electroretinography devices configured to detect biopotential signals from an eye of a subject. In some embodiments, the device is configured to prevent the subject's eyelids from closing over the device when placed in contact with the anterior surface of the subject's eye. In some embodiments, the device has a Young's modulus of no more than about 50 MPa. In some embodiments, the device includes a diffusing or refracting element configured to scatter, focus or diverge incident light. In other embodiments, the device includes a void through which incident light can enter the subject's eye without passing through any portion of the device.Type: GrantFiled: March 1, 2021Date of Patent: September 26, 2023Assignee: RETMAP, INC.Inventors: John R. Hetling, Safa Rahmani, Tamas Ban
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Patent number: 11160447Abstract: A pixel light source apparatus, system and method are disclosed for a stimulus source for visual pathway testing. A representative system includes a plurality of pixel light sources and a control and driver circuit. The pixel light sources are coupled to each other to form a partially-spherical dome, with each pixel light source arranged to emit light directed to a convergent location of the partially-spherical dome. The control and driver circuit implements a selected stimulus protocol to selectively energize each pixel light source to generate light stimulation to any arbitrary or selected portion of the retina of an eye of a human subject. A representative pixel light source comprises at least one elongated and optically opaque side wall; a rear wall; an illumination source; a first optical element defining a first light chamber; and a second optical element defining a second light chamber.Type: GrantFiled: August 23, 2016Date of Patent: November 2, 2021Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOISInventors: John R. Hetling, Shresta Patangay, Meagan Ouy
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Publication number: 20210219905Abstract: The present disclosure provides electroretinography devices configured to detect biopotential signals from an eye of a subject. In some embodiments, the device is configured to prevent the subject's eyelids from closing over the device when placed in contact with the anterior surface of the subject's eye. In some embodiments, the device has a Young's modulus of no more than about 50 MPa. In some embodiments, the device includes a diffusing or refracting element configured to scatter, focus or diverge incident light. In other embodiments, the device includes a void through which incident light can enter the subject's eye without passing through any portion of the device.Type: ApplicationFiled: March 1, 2021Publication date: July 22, 2021Inventors: John R. Hetling, Safa Rahmani, Tamas Ban
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Patent number: 10952630Abstract: The present disclosure provides electroretinography devices configured to detect biopotential signals from an eye of a subject. In some embodiments, the device is configured to prevent the subject's eyelids from closing over the device when placed in contact with the anterior surface of the subject's eye. In some embodiments, the device has a Young's modulus of no more than about 50 MPa. In some embodiments, the device includes a diffusing or refracting element configured to scatter, focus or diverge incident light. In other embodiments, the device includes a void through which incident light can enter the subject's eye without passing through any portion of the device.Type: GrantFiled: September 14, 2018Date of Patent: March 23, 2021Assignee: Retmap, Inc.Inventors: John R. Hetling, Safa Rahmani, Tamas Ban
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Publication number: 20190029554Abstract: The present disclosure provides electroretinography devices configured to detect biopotential signals from an eye of a subject. In some embodiments, the device is configured to prevent the subject's eyelids from closing over the device when placed in contact with the anterior surface of the subject's eye. In some embodiments, the device has a Young's modulus of no more than about 50 MPa. In some embodiments, the device includes a diffusing or refracting element configured to scatter, focus or diverge incident light. In other embodiments, the device includes a void through which incident light can enter the subject's eye without passing through any portion of the device.Type: ApplicationFiled: September 14, 2018Publication date: January 31, 2019Inventors: John R. Hetling, Safa Rahmani, Tamas Ban
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Publication number: 20180242834Abstract: A pixel light source apparatus, system and method are disclosed for a stimulus source for visual pathway testing. A representative system includes a plurality of pixel light sources and a control and driver circuit. The pixel light sources are coupled to each other to form a partially-spherical dome, with each pixel light source arranged to emit light directed to a convergent location of the partially-spherical dome. The control and driver circuit implements a selected stimulus protocol to selectively energize each pixel light source to generate light stimulation to any arbitrary or selected portion of the retina of an eye of a human subject. A representative pixel light source comprises at least one elongated and optically opaque side wall; a rear wall; an illumination source; a first optical element defining a first light chamber; and a second optical element defining a second light chamber.Type: ApplicationFiled: August 23, 2016Publication date: August 30, 2018Inventors: John R. HETLING, Shresta PATANGAY, Meagan OUY
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Publication number: 20170340234Abstract: The present disclosure provides electroretinography devices configured to detect biopotential signals from an eye of a subject. In some embodiments, the device is configured to prevent the subject's eyelids from closing over the device when placed in contact with the anterior surface of the subject's eye. In some embodiments, the device has a Young's modulus of no more than about 50 MPa. In some embodiments, the device includes a diffusing or refracting element configured to scatter, focus or diverge incident light. In other embodiments, the device includes a void through which incident light can enter the subject's eye without passing through any portion of the device.Type: ApplicationFiled: January 17, 2017Publication date: November 30, 2017Inventors: John R. Hetling, Safa Rahmani, Tamas Ban
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Publication number: 20150029463Abstract: The present disclosure provides electroretinography devices configured to detect biopotential signals from an eye of a subject. In some embodiments, the device is configured to prevent the subject's eyelids from closing over the device when placed in contact with the anterior surface of the subject's eye. In some embodiments, the device has a Young's modulus of no more than about 50 MPa. In some embodiments, the device includes a diffusing or refracting element configured to scatter, focus or diverge incident light. In other embodiments, the device includes a void through which incident light can enter the subject's eye without passing through any portion of the device.Type: ApplicationFiled: July 23, 2014Publication date: January 29, 2015Inventors: John R. Hetling, Safa Rahmani, Tamas Ban
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Patent number: 8118752Abstract: The present invention provides an electrode array device for simultaneously detecting electrical potentials at five or more locations on the anterior surface of an eye. The device comprises a dielectric lens substrate having a concave inner surface conforming to the anterior surface of the eye, and at least five recording electrodes positioned in relation to the inner surface of the lens substrate so as to make electrical connection with the anterior surface of the eye when the lens substrate is placed on the anterior surface of eye. Each recording electrode is in electrically conductive communication with a corresponding conductive contact, there being one conductive contact for each recording electrode. Each conductive contact is adapted for operable connection to signal processor, and each conductive contact is electrically insulated from the anterior surface of the eye.Type: GrantFiled: June 9, 2008Date of Patent: February 21, 2012Assignee: The Board of Trustees of the University of IllinoisInventors: John R. Hetling, Tamas Ban, Safa Rahmani
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Publication number: 20080294066Abstract: The present invention provides an electrode array device for simultaneously detecting electrical potentials at five or more locations on the anterior surface of an eye. The device comprises a dielectric lens substrate having a concave inner surface conforming to the anterior surface of the eye, and at least five recording electrodes positioned in relation to the inner surface of the lens substrate so as to make electrical connection with the anterior surface of the eye when the lens substrate is placed on the anterior surface of eye. Each recording electrode is in electrically conductive communication with a corresponding conductive contact, there being one conductive contact for each recording electrode. Each conductive contact is adapted for operable connection to signal processor, and each conductive contact is electrically insulated from the anterior surface of the eye.Type: ApplicationFiled: June 9, 2008Publication date: November 27, 2008Inventors: John R. Hetling, Tamas Ban, Safa Rahmani
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Patent number: 7384145Abstract: A system and method for obtaining information about the spatial distribution of photoreceptor activity and neural activity in the retina using simultaneously recorded multiple biopotential signals. The information thus gathered is used to assess retinal dysfunction due to trauma or disease. The biopotential signals are recorded from the surface of the eye and head using a plurality of electrodes, including those integral to a contact lens. The biopotential signals are recorded before, during and after the presentation of an optical stimulus to the subject eye. The recorded biopotential signals are then analyzed and interpreted to reveal the distribution of photoreceptor activity and neural activity across the retina. The analysis and interpretation of the biopotential signals is quantitative, and makes use of an electromagnetic model of the subject eye. The subject may be animal or human.Type: GrantFiled: February 15, 2007Date of Patent: June 10, 2008Assignee: The Board of Trustees of the University of IllinoisInventors: John R. Hetling, Tamas Ban, Safa Rahmani