Patents Assigned to Visiogen, Inc.
  • Patent number: 6884261
    Abstract: There is disclosed a method of preparing an accommodating intraocular lens having an optical axis for subsequent implantation. The method comprises providing an intraocular lens having first and second viewing elements interconnected by plural members. At least a portion of the members are disposed from the optical axis by a distance greater than a periphery of at least one of the viewing elements. The distance is measured orthogonal to the optical axis. The method further comprises drawing the members inwardly toward the optical axis by relatively rotating the first and second viewing elements. The method further comprises increasing the separation between the viewing elements along the optical axis while drawing the members inwardly.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: April 26, 2005
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen
  • Patent number: 6858040
    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: February 22, 2005
    Assignee: Visiogen, Inc.
    Inventors: Tuan Anh Nguyen, Valdemar Portney, Gholam-Reza Zadno-Azizi, Albert C. Ting
  • Patent number: 6846326
    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: January 25, 2005
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Valdemar Portney, Tuan Anh Nguyen
  • Patent number: 6818158
    Abstract: There is disclosed a method of making an intraocular lens having first and second viewing elements. The viewing elements are interconnected by a plurality of translation members extending from a periphery of the first viewing element. At least one of the translation members comprises a plurality of arms, and at least one of the viewing elements includes an optic having refractive power. The method comprises providing a first outer mold and a second outer mold, and an inner mold therebetween. The first outer mold and the inner mold define a first mold space, and the second outer mold and the inner mold define a second mold space. The method further comprises molding the viewing elements, the plurality of arms and the optic as a single piece by filling the first and second mold spaces with a material, such that the first viewing element and the plurality of arms are formed in the first mold space and the second viewing element is formed in the second mold space.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: November 16, 2004
    Assignee: Visiogen, Inc.
    Inventors: Hai-Minh Pham, Tuan Anh Nguyen
  • Patent number: 6786934
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens has an anterior portion which in turn includes an anterior viewing element and an anterior biasing element. The lens also has a posterior portion which in turn includes 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: September 7, 2004
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen, Albert C. Ting, Valdemar Portney
  • Patent number: 6764511
    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: July 20, 2004
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Valdemar Portney, Erica J. Rogers, Tuan Anh Nguyen, Albert C. Ting
  • Patent number: 6761737
    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: July 13, 2004
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen, Valdemar Portney, Albert C. Ting