Patents by Inventor Michael Brownell
Michael Brownell 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: 20230107167Abstract: A vision screening device, a vision screening system, a vision impairment screening device, vision impairment screening system, processes, method of assessments, and methods of use are presented. The present disclosure provides a vision screening system and device, including obtaining flash imagery in order to be used for analysis of visual function. More specifically, and without limitation, the present disclosure provides the state of the art with a system for attracting the gaze of a user and controlling accommodation for obtaining proper imagery as is needed for visual analysis. Furthermore, and without limitation, the present disclosure provides a vision system for capturing visual performance of a user.Type: ApplicationFiled: October 4, 2021Publication date: April 6, 2023Applicant: Axiom Innova, Inc.Inventors: Michael Brownell, Patrick DeGuzman, Darcy Wendel, David Huang
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Publication number: 20180098881Abstract: System and method of photoaltering a region of an eye using a high resolution digital image of the eye. The system includes a laser assembly for outputting a pulsed laser beam, an imaging system for capturing a real-time high resolution digital image of the eye and displaying the digital image of the eye, a user interface receiving at least one laser parameter input, and a controller coupled to the laser assembly, imaging system, and user interface. The controller directs the laser assembly to output the pulsed laser beam to the region of the eye based on the laser parameter input.Type: ApplicationFiled: December 11, 2017Publication date: April 12, 2018Inventors: Keith Watanabe, Jesse Buck, Guy V. Holland, Michael Brownell, Valentina Doushkina
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Patent number: 9844463Abstract: System and method of photoaltering a region of an eye using a high resolution digital image of the eye. The system includes a laser assembly for outputting a pulsed laser beam, an imaging system for capturing a real-time high resolution digital image of the eye and displaying the digital image of the eye, a user interface receiving at least one laser parameter input, and a controller coupled to the laser assembly, imaging system, and user interface. The controller directs the laser assembly to output the pulsed laser beam to the region of the eye based on the laser parameter input.Type: GrantFiled: April 1, 2009Date of Patent: December 19, 2017Assignee: AMO Development, LLCInventors: Keith Watanabe, Jesse Buck, Guy V. Holland, Michael Brownell, Valentina Doushkina
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Publication number: 20170290703Abstract: An optical interface device having an opening for an optical path that can be non-circular and having engagement members having gradually varying angles of engagement. An embodiment of the interface device can be a one size fits all device, providing a configuration that fits in all typical eye openings, including narrow palpebral fissures and small eyes, while providing optical path access to features and structures of the eye. An embodiment of the interface device engages the limbus, cornea and sclera.Type: ApplicationFiled: April 6, 2017Publication date: October 12, 2017Applicant: Lensar, Inc.Inventors: E. Valas Teuma, John McWhirter, Michael Brownell
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Patent number: 9462943Abstract: Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot.Type: GrantFiled: September 9, 2014Date of Patent: October 11, 2016Assignee: AMO Development, LLCInventor: Michael Brownell
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Publication number: 20150290032Abstract: Embodiments of the present invention encompass systems and techniques for developing a vision prescription for a patient based on an objective optical manifest refraction, such as that measured with a wavefront device, without altering the prescription in response to any subjective manifest refraction, such as that measured with a phoropter device.Type: ApplicationFiled: April 30, 2015Publication date: October 15, 2015Inventor: Michael Brownell
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Publication number: 20140375953Abstract: Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot.Type: ApplicationFiled: September 9, 2014Publication date: December 25, 2014Inventor: Michael Brownell
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Patent number: 8852175Abstract: Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot.Type: GrantFiled: November 21, 2008Date of Patent: October 7, 2014Assignee: AMO Development LLCInventor: Michael Brownell
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Patent number: 8632526Abstract: A system for interfacing a surgical laser with an eye includes a first sensing element to couple to an output surface of the laser, an interface lens having second sensing element coupled to a first surface of the interface lens, and a detector coupled to the first sensing element. A second surface of the interface lens contacts the eye. The detector determines when the first sensing element contacts the second sensing element. A method for aligning the laser with the eye includes coupling the laser to the patient interface, sensing an electrical change indicating a position of the output surface with the interface lens, comparing the electrical change with a predetermined value to produce a correction, and re-positioning the laser with the correction.Type: GrantFiled: November 7, 2007Date of Patent: January 21, 2014Assignee: AMO Development, LLCInventors: Michael Brownell, Ferenc Raksi
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Patent number: 8292877Abstract: Systems and methods of incising a portion of a material include creating a sub-surface separation in a region of the material, and incising a periphery of the region with a pulsed laser beam to produce an edge of the portion. The edge includes a periodically varying shape to secure the portion to the material when the portion is reintegrated. The system includes a laser producing the pulsed laser beam, a scanner operable in response to a control signal, and a controller coupled to the scanner. The controller produces the control signal. In response to the control signal, the scanner creates a sub-surface separation in the region with the pulsed laser beam and incises the periphery of the region with the pulsed laser beam to produce the edge with the periodically varying shape.Type: GrantFiled: February 20, 2012Date of Patent: October 23, 2012Assignee: AMO Development, LLC.Inventors: Ferenc Raksi, Michael Brownell
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Publication number: 20120150161Abstract: Systems and methods of incising a portion of a material include creating a sub-surface separation in a region of the material, and incising a periphery of the region with a pulsed laser beam to produce an edge of the portion. The edge includes a periodically varying shape to secure the portion to the material when the portion is reintegrated. The system includes a laser producing the pulsed laser beam, a scanner operable in response to a control signal, and a controller coupled to the scanner. The controller produces the control signal. In response to the control signal, the scanner creates a sub-surface separation in the region with the pulsed laser beam and incises the periphery of the region with the pulsed laser beam to produce the edge with the periodically varying shape.Type: ApplicationFiled: February 20, 2012Publication date: June 14, 2012Applicant: AMO Development, LLCInventors: Ferenc Raksi, Michael Brownell
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Publication number: 20120083776Abstract: Systems, methods, and computer program products are provided for the administration of annular and other ablation profiles during refractive surgery treatments. Basis data framework techniques enable the implementation of both circular and annular ablation profiles resulting in increased ablation efficiency when treating certain vision conditions. In some instances, systems or treatments involve the use of symmetric and asymmetric ablations shapes such as double spots, triple spots, quadruple spots, multiple spots, arc shapes, elliptical shapes, and the like.Type: ApplicationFiled: October 5, 2010Publication date: April 5, 2012Applicant: AMO Development, LLCInventors: Guang-ming Dai, Michael Brownell
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Patent number: 8142423Abstract: Systems and methods of incising a portion of a material include creating a sub-surface separation in a region of the material, and incising a periphery of the region with a pulsed laser beam to produce an edge of the portion. The edge includes a periodically varying shape to secure the portion to the material when the portion is reintegrated. The system includes a laser producing the pulsed laser beam, a scanner operable in response to a control signal, and a controller coupled to the scanner. The controller produces the control signal. In response to the control signal, the scanner creates a sub-surface separation in the region with the pulsed laser beam and incises the periphery of the region with the pulsed laser beam to produce the edge with the periodically varying shape.Type: GrantFiled: November 7, 2007Date of Patent: March 27, 2012Assignee: AMO Development, LLC.Inventors: Ferenc Raksi, Michael Brownell
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Publication number: 20120016349Abstract: Apparatus and methods are provided for interfacing a surgical laser with an eye using a patient interface device that minimizes aberrations through a combination of a contact lens surface positioning and a liquid medium between an anterior surface of the eye and the contact lens surface.Type: ApplicationFiled: September 12, 2011Publication date: January 19, 2012Applicant: AMO Development, LLC.Inventor: Michael Brownell
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Patent number: 8075552Abstract: A system and method for preparation of donor corneal tissue is disclosed. The system includes two surgical lasers. The first surgical laser is adapted to incise a recipient cornea to enable resection of recipient corneal tissue. The second surgical laser is adapted to incise a donor cornea to enable resection of donor corneal tissue. Both surgical lasers are adapted to make corneal incisions which are defined by incision parameters. Further, both surgical lasers are calibrated to make substantially precise corneal incisions when provided with identical incision parameters.Type: GrantFiled: November 20, 2006Date of Patent: December 13, 2011Assignee: AMO Development LLC.Inventors: Ronald M. Kurtz, Melvin A. Sarayba, Michael Brownell
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Publication number: 20100130966Abstract: Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot.Type: ApplicationFiled: November 21, 2008Publication date: May 27, 2010Applicant: Advanced Medical Optics, Inc.Inventor: Michael Brownell
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Publication number: 20090247997Abstract: System and method of photoaltering a region of an eye using a high resolution digital image of the eye. The system includes a laser assembly for outputting a pulsed laser beam, an imaging system for capturing a real-time high resolution digital image of the eye and displaying the digital image of the eye, a user interface receiving at least one laser parameter input, and a controller coupled to the laser assembly, imaging system, and user interface. The controller directs the laser assembly to output the pulsed laser beam to the region of the eye based on the laser parameter input.Type: ApplicationFiled: April 1, 2009Publication date: October 1, 2009Applicant: AMO DEVELOPMENT, LLCInventors: Keith Watanabe, Jesse Buck, Guy V. Holland, Michael Brownell, Valentina Doushkina
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Publication number: 20090118718Abstract: Systems and methods of incising a portion of a material include creating a sub-surface separation in a region of the material, and incising a periphery of the region with a pulsed laser beam to produce an edge of the portion. The edge includes a periodically varying shape to secure the portion to the material when the portion is reintegrated. The system includes a laser producing the pulsed laser beam, a scanner operable in response to a control signal, and a controller coupled to the scanner. The controller produces the control signal. In response to the control signal, the scanner creates a sub-surface separation in the region with the pulsed laser beam and incises the periphery of the region with the pulsed laser beam to produce the edge with the periodically varying shape.Type: ApplicationFiled: November 7, 2007Publication date: May 7, 2009Applicant: IntraLase, Inc.Inventors: Ferenc Raksi, Michael Brownell
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Publication number: 20090118716Abstract: System and method of photoaltering a region of a material using a pulsed laser beam. The method includes randomly scanning the pulsed laser beam in the region, and creating a separation between a first layer of the material and a second layer of the material at the region. The system includes a laser producing a pulsed laser beam, a controller transmitting a signal, and a scanner coupled to the controller. The scanner randomly scans the pulsed laser beam in the region in response to the signal.Type: ApplicationFiled: November 7, 2007Publication date: May 7, 2009Applicant: IntraLase, Inc.Inventor: Michael Brownell
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Publication number: 20090118717Abstract: A system for interfacing a surgical laser with an eye includes a first sensing element to couple to an output surface of the laser, an interface lens having second sensing element coupled to a first surface of the interface lens, and a detector coupled to the first sensing element. A second surface of the interface lens contacts the eye. The detector determines when the first sensing element contacts the second sensing element. A method for aligning the laser with the eye includes coupling the laser to the patient interface, sensing an electrical change indicating a position of the output surface with the interface lens, comparing the electrical change with a predetermined value to produce a correction, and re-positioning the laser with the correction.Type: ApplicationFiled: November 7, 2007Publication date: May 7, 2009Applicant: IntraLase, Inc.Inventors: Michael Brownell, Ferenc Raksi