Patents Assigned to Visiogen, Inc.
  • Patent number: 8062361
    Abstract: An accommodating intraocular lens implantable in an eye. The lens comprises an anterior portion having an anterior biasing element and an anterior optic having refractive power. The lens further comprises a posterior portion having a posterior biasing element and a posterior optic having refractive power. The anterior optic and the posterior optic are relatively moveable in response to action of the ciliary muscle to change the separation between the optics and the refractive power of the lens. The lens has an aberration-inducing force characteristic of about 70 mg to about 115 mg to allow aberration-inducing relative movement of the optics when the lens is in the eye, thereby adding optical aberration to the lens which increases depth of focus of the lens. In one variation, the lens has an aberration-inducing force characteristic of 70 mg to 115 mg. Related methods are also disclosed.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: November 22, 2011
    Assignee: Visiogen, Inc.
    Inventors: Tuan Anh Nguyen, Gholam-Reza Zadno-Azizi, Scott Evans, Valdemar Portney
  • Patent number: 8025823
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: September 27, 2011
    Assignee: Visiogen, Inc.
    Inventors: Hai-Minh Pham, Tuan Anh Nguyen, Dennis Figueroa
  • Publication number: 20100324673
    Abstract: An accommodating intraocular lens has an anterior portion including an anterior viewing element and an anterior biasing element connected to the anterior viewing element. A posterior portion has a posterior viewing element and a posterior biasing element connected to the posterior viewing element. The anterior and posterior biasing elements are connected at first and second apices. First and second distending members are connected to the posterior portion. The first and second distending members extend to locations significantly anterior of an anterior side of the posterior viewing element.
    Type: Application
    Filed: August 23, 2010
    Publication date: December 23, 2010
    Applicant: Visiogen, Inc.
    Inventors: Tuan Anh Nguyen, Gholam-Reza Zadno-Azizi, Scott Evans
  • Patent number: 7780729
    Abstract: An accommodating intraocular lens has an anterior portion including an anterior viewing element and an anterior biasing element connected to the anterior viewing element. A posterior portion has a posterior viewing element and a posterior biasing element connected to the posterior viewing element. The anterior and posterior biasing elements are connected at first and second apices. First and second distending members are connected to the posterior portion. The first and second distending members extend to locations significantly anterior of an anterior side of the posterior viewing element.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: August 24, 2010
    Assignee: Visiogen, Inc.
    Inventors: Tuan Anh Nguyen, Gholam-Reza Zadno-Azizi, Scott Evans
  • Publication number: 20100211170
    Abstract: Some embodiments provide a copolymer comprising: an acrylate recurring unit and an optionally substituted vinylaryl recurring unit, wherein a portion of at least one of the recurring units comprises a vinyldialkylsiloxy pendant group. The copolymers may be useful as soft acrylic haptics for intraocular lenses. Some embodiments further relate to intraocular lenses having a hydrophobic soft acrylic optic and a silicone haptic, such as a dual optic accommodative lens a having hydrophobic soft acrylic anterior and posterior optic bodies and a silicone haptic. Related copolymeric composite materials as well as additional embodiments of intraocular lenses, are also described herein.
    Type: Application
    Filed: October 6, 2009
    Publication date: August 19, 2010
    Applicant: VISIOGEN, INC.
    Inventor: Xiugao Liao
  • Patent number: 7744646
    Abstract: A tool configured to prepare a dual-optic accommodating intraocular lens for implantation can comprise a first portion and a second portion. The first portion can comprise a base and at least one elongate guide associated with the base. The first portion can be in contact with and not movable relative to a first optic of the lens during at least a portion of the preparation of the lens. The a second portion can comprise an actuator having an engagement surface in contact with a second optic of the lens and at least one protrusion extending away from the engagement surface. The protrusion can be configured to extend into engagement with the elongate guide. The first and second portions can be movable relative to each other as permitted by the guide(s) and protrusion(s) to move the optics so that the lens takes on a more compact condition for implantation.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: June 29, 2010
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen
  • Patent number: 7744603
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: June 29, 2010
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen
  • Publication number: 20100076449
    Abstract: Disclosed is an injector which comprises an injector housing having a longitudinal axis and an injection probe disposed along the longitudinal axis. The injector further comprises an intraocular lens disposed in the housing. The intraocular lens comprises first and second interconnected viewing elements, and the optical axes of the first and second viewing elements are substantially aligned. The optical axes are substantially orthogonal to the longitudinal axis of the housing. The injector further comprises a lens carrier which engages one of the viewing elements. The viewing elements are moveable in response to longitudinal movement of the lens carrier relative to the injector housing. The longitudinal movement causes both (i) the optical axes to be displaced relative to each other and (ii) the viewing elements to be disposed substantially on the longitudinal axis of the injector housing.
    Type: Application
    Filed: December 1, 2009
    Publication date: March 25, 2010
    Applicant: VISIOGEN, INC.
    Inventor: George Tsai
  • Patent number: 7645300
    Abstract: Disclosed is an injector which comprises an injector housing having a longitudinal axis and an injection probe disposed along the longitudinal axis. The injector further comprises an intraocular lens disposed in the housing. The intraocular lens comprises first and second interconnected viewing elements, and the optical axes of the first and second viewing elements are substantially aligned. The optical axes are substantially orthogonal to the longitudinal axis of the housing. The injector further comprises a lens carrier which engages one of the viewing elements. The viewing elements are moveable in response to longitudinal movement of the lens carrier relative to the injector housing. The longitudinal movement causes both (i) the optical axes to be displaced relative to each other and (ii) the viewing elements to be disposed substantially on the longitudinal axis of the injector housing.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: January 12, 2010
    Assignee: Visiogen, Inc.
    Inventor: George Tsai
  • Patent number: 7615056
    Abstract: Disclosed is an apparatus for compacting an intraocular lens. The apparatus comprises a lens compactor having a first configuration for retaining the intraocular lens in an unstressed condition and a second configuration in which the compactor stresses the lens into an at least partially compacted condition without advancing the lens along an injection axis of the compactor. The compactor accomplishes this by applying a compacting force in a direction generally orthogonal to the optical axis of the lens. The compactor is responsive to a compactor actuator that is movable by a user to change the compactor from the first configuration to the second configuration. Additional apparatus and methods are disclosed as well.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: November 10, 2009
    Assignee: Visiogen, Inc.
    Inventors: Ian Ayton, Scott Evans, Tuan Nguyen
  • Publication number: 20090228101
    Abstract: Disclosed are accommodating intraocular lenses for implantation in an eye having an optical axis. In certain embodiments, an intraocular lens includes an anterior optic, a posterior optic, and a support structure configured to move the optics relative to each other along an optical axis between an accommodated state and an unaccommodated state. In certain embodiments, at least a portion of the support structure can be modified in situ to alter reaction forces between the support structure and at least one structure of the eye. In certain embodiments, a refractive property of one of the anterior or posterior optics can be modified in situ while leaving the refractive properties of the remaining one of the anterior or posterior optics substantially unaffected. Additional embodiments and methods are also disclosed.
    Type: Application
    Filed: July 7, 2008
    Publication date: September 10, 2009
    Applicant: Visiogen, Inc.
    Inventor: Gholam-Reza Zadno-Azizi
  • Patent number: 7452378
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: November 18, 2008
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Valdemar Portney, Erica J. Rogers, Tuan Anh Nguyen, Albert C. Ting
  • Patent number: 7452362
    Abstract: There are disclosed methods for preparing an intraocular lens for implantation in an eye. The methods can comprise (1) providing an intraocular lens having first and second viewing elements that overlap when viewed along an optical axis; and (2) preparing the lens for implantation by relatively moving the viewing elements such that the first viewing element moves at least substantially completely across said second viewing element to significantly reduce or eliminate the overlap. Additional methods and intraocular lens embodiments are also disclosed.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: November 18, 2008
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen
  • Patent number: 7238201
    Abstract: An intraocular lens system adapted to be implanted within an eye includes an anterior optic movable in a forward direction within the eye. The intraocular lens system further includes at least two anterior haptic arms, each anterior haptic arm having a first end coupled to the anterior optic and a second end adapted to be coupled to the eye. The intraocular lens system further includes a posterior optic movable in the forward direction within the eye and coupled to the anterior haptic arms. The intraocular lens system further includes at least one posterior haptic member adapted to be coupled to the eye and coupled to the posterior optic. The anterior haptic arms are responsive to a first forward movement of the posterior optic by actuating a second forward movement of the anterior optic substantially larger than the first forward movement.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: July 3, 2007
    Assignee: Visiogen, Inc.
    Inventors: Valdemar Portney, Nathaniel Gerald Portney
  • Patent number: 7226478
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: June 5, 2007
    Assignee: Visiogen, Inc.
    Inventors: Albert C. Ting, Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen, Valdemar Portney
  • Patent number: 7198640
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: April 3, 2007
    Assignee: Visiogen, Inc.
    Inventor: Tuan Anh Nguyen
  • Patent number: 7118596
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: October 10, 2006
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Albert C. Ting, Tuan Anh Nguyen
  • Patent number: 7087080
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: August 8, 2006
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Erica J. Rogers, Tuan Anh Nguyen, Albert C. Ting
  • Patent number: 7041134
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: May 9, 2006
    Assignee: Visiogen, Inc.
    Inventors: Tuan Anh Nguyen, Valdemar Portney, Gholam-Reza Zadno-Azizi, Albert C. Ting
  • Patent number: 6899732
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: May 31, 2005
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen