Patents by Inventor David A. Downer

David A. Downer 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).

  • Publication number: 20080097461
    Abstract: A method of delivering an intraocular lens into an eye is disclosed. The intraocular lens is heated. The intraocular lens is maintained within a desired temperature range. The intraocular lens is injected into the eye when the intraocular lens is within the desired temperature range.
    Type: Application
    Filed: October 23, 2006
    Publication date: April 24, 2008
    Inventors: Mikhail Boukhny, James Chon, David Downer, Steve Van Noy
  • Patent number: 7156854
    Abstract: A lens delivery system having a plunger, an injector body and a nozzle portion connected to the injector body, the nozzle portion having a hinged lid and a hollow body with a lens holding platform formed beneath the hinged lid. The cartridge has an elongated nozzle tube or tip with a bore, the bore communicating with the lens holding platform. The bottom of the bore is rounded, which causes the edges of the lens between the lens haptics to fold upwardly as the lens is pushed down the bore from the platform by the plunger. A removable pin fits into the lid and prevents the lens from moving down the bore of the tip during shipment and storage.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: January 2, 2007
    Assignee: Alcon, Inc.
    Inventors: Kyle Brown, David A. Downer, Thomas M. Heyman
  • Publication number: 20040243141
    Abstract: A lens delivery system having a plunger, an injector body and a nozzle portion connected to the injector body, the nozzle portion having a hinged lid and a hollow body with a lens holding platform formed beneath the hinged lid. The inside of the hinged lid contains ribs that help to hold a lens stationary on the platform when the lid is closed. The cartridge has an elongated nozzle tube or tip with a bore, the bore communicating with the lens holding platform. The bottom of the bore is rounded, which causes the edges of the lens between the lens haptics to fold upwardly as the lens is pushed down the bore from the platform by the plunger. The central portion of the optic of the lens is prevented from moving upward during folding by a projection in the lid between the ribs. A removable pin fits into the lid and prevents the lens from moving down the bore of the tip during shipment and storage.
    Type: Application
    Filed: May 28, 2003
    Publication date: December 2, 2004
    Inventors: Kyle Brown, David A. Downer, Thomas M. Heyman
  • Patent number: 6083231
    Abstract: A lens injector cartridge having an asymmetric bore. The asymmetric bore initiate; the folding of the lens on one side only, thereby reducing the amount of energy imparted to the lens and the potential for damage to the lens. The gentle folding of the lens also assists in positioning the travel of the haptics down the bore, thereby reducing the potential for damage to the haptics.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: July 4, 2000
    Assignee: Alcon Laboratories, Inc.
    Inventors: Stephen J. Van Noy, Kyle Brown, David A. Downer, David Eister, Lars D. Jensen
  • Patent number: 5947976
    Abstract: A lens injector cartridge having an asymmetric bore. The asymmetric bore initiates the folding of the lens on one side only, thereby reducing the amount of energy imparted to the lens and the potential for damage to the lens. The gentle folding of the lens also assists in positioning the travel of the haptics down the bore, thereby reducing the potential for damage to the haptics.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: September 7, 1999
    Assignee: Alcon Laboratories, Inc.
    Inventors: Stephen J. Van Noy, Kyle Brown, David A. Downer, David Eister, Lars D. Jensen