Patents Assigned to Powervision, Inc.
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Patent number: 8303656Abstract: A lens for correcting human vision, for example an IOL, contact lens or corneal inlay or onlay, that carries and interior phase or layer comprising a pattern of individual transparent adaptive displacement structures. In the exemplary embodiments, the displacement structures are actuated by shape change polymer that adjusts a shape or other parameter in response to applied energy that in turn displaces a fluid media within the lens that actuates a flexible lens surface. The adaptive optic means of the invention can be used to create highly localized surface corrections in the lens to correct higher order aberrations-which types of surfaces cannot be fabricated into and IOL and then implanted. The system of displacement structures also can provide spherical corrections in the lens.Type: GrantFiled: September 4, 2007Date of Patent: November 6, 2012Assignee: PowerVision, Inc.Inventor: John H. Shadduck
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Patent number: 8158712Abstract: Biocompatible polymers useful in ophthalmic devices such as accommodating intraocular lenses. The polymers have improved resistance to the diffusion of fluid, relatively high refractive indexes, and mechanical properties to allow for deformation upon the application of force.Type: GrantFiled: February 21, 2008Date of Patent: April 17, 2012Assignee: PowerVision, Inc.Inventor: Jingjong Your
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Publication number: 20120078361Abstract: Fluid-driven accommodating intraocular lenses comprising deformable optic portions.Type: ApplicationFiled: November 18, 2011Publication date: March 29, 2012Applicant: PowerVision, Inc.Inventor: John H. Shadduck
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Publication number: 20110282442Abstract: An accommodating intraocular lens includes an optic portion a haptic portion and a backstop. The optic portion of the lens includes an actuator that deflects a lens element to alter the optical power of the lens responsive to forces applied to the haptic portion of the lens by contraction of the ciliary muscles. Forces applied to the haptic portion may result in fluid displacements from or to the haptic portion from the actuator. The backstop provides support to the haptic so that bulk translation of the haptic is prevented in response to the forces applied by the capsular sac.Type: ApplicationFiled: July 28, 2011Publication date: November 17, 2011Applicant: PowerVision, Inc.Inventors: John A. Scholl, Terah Whiting Smiley, David J. Smith, Denise H. Burns, Barry Cheskin
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Patent number: 8048155Abstract: A deformable intracapsular implant device for shaping an enucleated lens capsule sac for use in cataract procedures and refractive lensectomy procedures. In one embodiment, the intraocular implant devices rely on thin film shape memory alloys and combine with the post-phaco capsular sac to provide a biomimetic complex that can mimic the energy-absorbing and energy-releasing characteristics of a young accommodative lens capsule. In another embodiment, the capsular shaping body is combined with an adaptive optic. The peripheral capsular shaping body carries at least one fluid-filled interior chamber that communicates with a space in a adaptive optic portion that has a deformable lens surface. The flexing of the peripheral shaping body in response to zonular tensioning and de-tensioning provides an inventive adaptive optics mechanism wherein fluid media flows between the respective chambers “adapts” the optic to increase and decrease the power thereof.Type: GrantFiled: February 3, 2003Date of Patent: November 1, 2011Assignee: PowerVision, Inc.Inventor: John H. Shadduck
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Publication number: 20100324671Abstract: An intraocular lens (IOL) that provides for optical power adjustment following its implantation, for example, for use in treating cataract patients. The lens body has first and second surface portions that bound at least one interior chamber or space that extends from the central optic portion to the lens periphery. The interior chamber or space has a microporous body that is intermediate inner and outer portions of the space. In one embodiment, the microporous body is capable of cooperating with an external Rf or light source to expose a charge to a charge-carrying fluid within the interior chamber. By this system, fluid flows are induced to alter the optical parameters of the lens.Type: ApplicationFiled: August 9, 2010Publication date: December 23, 2010Applicant: PowerVision, Inc.Inventor: John H. Shadduck
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Publication number: 20100324672Abstract: An accommodating intraocular lens is provided in which a deflectable lens element is anchored to a substrate along its optical axis to define a fluid filled space. Fluid-filled haptics disposed in fluid communication with the space vary the fluid volume in the space responsive to forces applied by the ciliary muscles, thereby causing the periphery of the lens element to deflect relative to the substrate and changing the optical power of the intraocular lens.Type: ApplicationFiled: August 10, 2010Publication date: December 23, 2010Applicant: PowerVision, Inc.Inventors: Victor Esch, John Scholl, Terry Smiley, Patrick Myall, Bill Evans, Barry Cheskin, Henry Wu
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Patent number: 7776088Abstract: An intraocular lens (IOL) that provides for optical power adjustment following its implantation, for example, for use in treating cataract patients. The lens body has first and second surface portions that bound at least one interior chamber or space that extends from the central optic portion to the lens periphery. The interior chamber or space has a microporous body that is intermediate inner and outer portions of the space. In one embodiment, the microporous body is capable of cooperating with an external Rf or light source to expose a charge to a charge-carrying fluid within the interior chamber. By this system, fluid flows are induced to alter the optical parameters of the lens.Type: GrantFiled: February 28, 2005Date of Patent: August 17, 2010Assignee: PowerVision, Inc.Inventor: John H. Shadduck
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Patent number: 7637947Abstract: An accommodating intraocular lens includes an optic portion, a haptic portion. The optic portion of the lens includes an actuator that deflects a lens element to alter the optical power of the lens responsive to forces applied to the haptic portion of the lens by contraction of the ciliary muscles and a secondary deflection mechanism. Movement of the lens element by the actuator causes the lens element to deform and the secondary deflection mechanism causes the lens to further deform.Type: GrantFiled: December 27, 2006Date of Patent: December 29, 2009Assignee: PowerVision, Inc.Inventors: David John Smith, Terah Whiting Smiley, John A. Scholl, Denise Horrilleno Burns, Victor Esch
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Patent number: 7485144Abstract: An accommodating intraocular lens is provided, in which optical parameters are altered in-situ using forces applied by the ciliary muscles, and in which a lens body carries an actuator separating two fluid-filled chambers having either the same index of diffraction or different indices of refraction. The actuator causes the relative volumes of fluid within an optic element of the lens to change, thereby altering the optical power of the lens.Type: GrantFiled: September 12, 2006Date of Patent: February 3, 2009Assignee: PowerVision, Inc.Inventor: Victor Esch
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Patent number: 7438723Abstract: An intraocular lens is provided that having optical parameters that may be adjusted in-situ, and is particularly useful in cataract patients that require an adjustment in the optical power of the lens post-implantation. The lens body carries an array of interior fluid-filled cells in which fluid is controllably moved by micropumps upon application of energy from an external source to move a fluid media into the cells to thereby alter the lens surface shape.Type: GrantFiled: December 12, 2003Date of Patent: October 21, 2008Assignee: PowerVision, Inc.Inventor: Victor Esch
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Patent number: 7278739Abstract: An lens for correcting human vision, for example an IOL, contact lens or corneal inlay or onlay, that carries and interior phase or layer comprising a pattern of individual transparent adaptive displacement structures. In one embodiment, the displacement structures are actuated by a shape memory polymer (SMP) material or other polymer that is adjustable in shape in response to applied energy. The SMP can be designed to be selectively adjustable in volumetric dimension, modulus of elasticity and/or permeability. The adaptive optic means of the invention can be used to create highly localized surface corrections in the lens to correct higher order aberrations—which types of surfaces cannot be fabricated into and IOL and then implanted. The system of displacement structures also can provide spherical corrections in the lens.Type: GrantFiled: November 21, 2005Date of Patent: October 9, 2007Assignee: PowerVision, Inc.Inventor: John H. Shadduck
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Patent number: 7264351Abstract: An lens for correcting human vision, for example an IOL, contact lens or corneal inlay or onlay, that carries and interior phase or layer comprising a pattern of individual transparent adaptive displacement structures. In the exemplary embodiments, the displacement structures are actuated by shape change polymer that adjusts a shape or other parameter in response to applied energy that in turn displaces a fluid media within the lens that actuates a flexible lens surface. The adaptive optic means of the invention can be used to create highly localized surface corrections in the lens to correct higher order aberrations-which types of surfaces cannot be fabricated into and IOL and then implanted. The system of displacement structures also can provide spherical corrections in the lens.Type: GrantFiled: August 29, 2005Date of Patent: September 4, 2007Assignee: PowerVision, Inc.Inventor: John H. Shadduck
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Publication number: 20070203578Abstract: An accommodating intraocular lens includes an optic portion a haptic portion and a backstop. The optic portion of the lens includes an actuator that deflects a lens element to alter the optical power of the lens responsive to forces applied to the haptic portion of the lens by contraction of the ciliary muscles. Forces applied to the haptic portion may result in fluid displacements from or to the haptic portion from the actuator. The backstop provides support to the haptic so that bulk translation of the haptic is prevented in response to the forces applied by the capsular sac.Type: ApplicationFiled: December 19, 2006Publication date: August 30, 2007Applicant: PowerVision, Inc.Inventors: John Scholl, Terah Smiley, David Smith, Denise Burns, Barry Cheskin
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Patent number: 7261737Abstract: An accommodating intraocular lens is provided having optical parameters that are altered in-situ, wherein an optic portion of the lens includes a lens piston that alters the shape of a lens element of the lens to alter the optical power of the lens, responsive to forces applied to a haptic portion to the lens by contraction of the ciliary muscles. Forces applied to the haptic portion are concentrated by the lens piston to provide a greater dynamic range, and may be further augmented by the use of haptic pistons disposed in the haptic portion of the lens.Type: GrantFiled: October 22, 2004Date of Patent: August 28, 2007Assignee: PowerVision, Inc.Inventors: Victor C. Esch, Donald Stenger, Barry Cheskin
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Patent number: 7247168Abstract: An accommodating intraocular lens is provided having optical parameters that are altered in-situ, wherein an optic portion of the lens includes an actuator that deflects a lens element to alter the optical power of the lens, responsive to forces applied to a haptic portion to the lens by contraction of the ciliary muscles. Forces applied to the haptic portion may result in fluid displacements from or to the haptic portion from the actuator. Displacement of fluid to the actuator may either increase or reduce the degree of deflection imposed on the lens element by the actuator.Type: GrantFiled: July 1, 2005Date of Patent: July 24, 2007Assignee: PowerVision, Inc.Inventors: Victor Esch, Barry Cheskin, John Scholl, Henry Wu, David Smith, Bill Evans, Patrick Myall, Terry Smiley
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Patent number: 7217288Abstract: An accommodating intraocular lens is provided in which a deflectable lens element is anchored to a substrate along its optical axis to define a fluid filled space. Fluid-filled haptics disposed in fluid communication with the space vary the fluid volume in the space responsive to forces applied by the ciliary muscles, thereby causing the periphery of the lens element to deflect relative to the substrate and changing the optical power of the intraocular lens.Type: GrantFiled: October 17, 2005Date of Patent: May 15, 2007Assignee: Powervision, Inc.Inventors: Victor Esch, John Scholl, Terry Smiley, Patrick Myall, Bill Evans, Barry Cheskin, Henry Wu
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Publication number: 20070106377Abstract: An accommodating intraocular lens includes an optic portion, a haptic portion. The optic portion of the lens includes an actuator that deflects a lens element to alter the optical power of the lens responsive to forces applied to the haptic portion of the lens by contraction of the ciliary muscles and a secondary deflection mechanism. Movement of the lens element by the actuator causes the lens element to deform and the secondary deflection mechanism causes the lens to further deform.Type: ApplicationFiled: December 27, 2006Publication date: May 10, 2007Applicant: PowerVision, Inc.Inventors: David Smith, Terah Smiley, John Scholl, Denise Burns, Victor Esch
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Publication number: 20070010880Abstract: An accommodating intraocular lens is provided, in which optical parameters are altered in-situ using forces applied by the ciliary muscles, and in which a lens body carries an actuator separating two fluid-filled chambers having either the same index of diffraction or different indices of refraction. The actuator causes the relative volumes of fluid within an optic element of the lens to change, thereby altering the optical power of the lens.Type: ApplicationFiled: September 12, 2006Publication date: January 11, 2007Applicant: PowerVision, Inc.Inventor: Victor Esch
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Patent number: 7122053Abstract: An accommodating intraocular lens is provided that having optical parameters that are altered in-situ using forces applied by the ciliary muscles, in which a lens body carries an actuator separating two fluid-filled chambers having either the same index of diffraction or different indices of refraction, actuation of the actuator changing the relative volumes of fluid within an optic element of the lens and altering the optical power of the lens.Type: GrantFiled: December 12, 2003Date of Patent: October 17, 2006Assignee: Powervision, Inc.Inventor: Victor Esch