Patents by Inventor Nader Nazarifar

Nader Nazarifar 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).

  • Surgical cassette and consumables for combined ophthalmic surgical procedure
    Publication number: 20030163138
    Abstract: A surgical cassette for use in a combined anterior segment and posterior segment ophthalmic surgical procedure is disclosed. The surgical cassette includes an irrigation inlet for receiving irrigation fluid from a source, a first irrigation outlet for providing irrigation fluid to a first ophthalmic microsurgical instrument, a first manifold fluidly coupling the irrigation inlet with the first irrigation outlet, a second irrigation outlet for providing irrigation fluid to a second ophthalmic microsurgical instrument, and a second manifold fluidly coupling the irrigation inlet with the second irrigation outlet. The surgical cassette greatly simplifies the combined procedure by eliminating the need for separate anterior segment and posterior segment cassettes for the combined procedure.
    Type: Application
    Filed: March 17, 2003
    Publication date: August 28, 2003
    Inventors: Nader Nazarifar, Dennis L. Steppe
  • Surgical cassette and consumables for combined ophthalmic surgical procedure
    Patent number: 6561999
    Abstract: A surgical cassette for use in a combined anterior segment and posterior segment ophthalmic surgical procedure is disclosed. The surgical cassette includes an irrigation inlet for receiving irrigation fluid from a source, a first irrigation outlet for providing irrigation fluid to a first ophthalmic microsurgical instrument, a first manifold fluidly coupling the irrigation inlet with the first irrigation outlet, a second irrigation outlet for providing irrigation fluid to a second ophthalmic microsurgical instrument, and a second manifold fluidly coupling the irrigation inlet with the second irrigation outlet. The surgical cassette greatly simplifies the combined procedure by eliminating the need for separate anterior segment and posterior segment cassettes for the combined procedure.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 13, 2003
    Assignee: Alcon Universal Ltd.
    Inventors: Nader Nazarifar, Dennis L. Steppe
  • Identification system for a surgical cassette
    Patent number: 6059544
    Abstract: A cassette having, in a first embodiment, a series of break-off, prismatic tabs integrally formed in the cassette that can be optically sensed by the surgical instrument.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: May 9, 2000
    Assignee: Alcon Laboratories, Inc.
    Inventors: Christopher C. Jung, Nader Nazarifar
  • Indentification system for a surgical cassette
    Patent number: 5899674
    Abstract: A cassette having, in a first embodiment, a series of break-off, prismatic tabs integrally formed in the cassette that can be optically sensed by the surgical instrument.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: May 4, 1999
    Assignee: Alcon Laboratories, Inc.
    Inventors: Christopher C. Jung, Nader Nazarifar
  • Apparatus and method for sensing fluid level
    Patent number: 5747824
    Abstract: An array of four infrared LEDs and an array of four phototransistor receivers with each LED and phototransistor mounted inside a light baffle. The LEDs are positioned in a substantially vertical array just outside one side wall of the cassette. The vertical line on which the LEDs are arranged is substantially parallel to the direction in which the fluid/air interface moves within the cassette. The LEDs are aimed upwardly at an angle of approximately 20.degree. from horizontal. A corresponding substantially vertical array of four phototransistor receivers is mounted outside the cassette opposite the LEDs such that each of the receivers is aimed at its corresponding LED.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: May 5, 1998
    Assignee: Alcon Laboratories, Inc.
    Inventors: Christopher C. Jung, Nader Nazarifar
  • Surgical cassette latching mechanism
    Patent number: 5676530
    Abstract: A cassette latching mechanism generally including an articulating clamp mounted on the end of a pneumatic cylinder. The clamp interacts with a slot, tab or tang on the cassette housing to hold the cassette firmly within a surgical console.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: October 14, 1997
    Assignee: Alcon Laboratories, Inc.
    Inventor: Nader Nazarifar
  • Shielded female connector
    Patent number: D435652
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: December 26, 2000
    Assignee: Alcon Laboratories, Inc.
    Inventors: Nader Nazarifar, Richard A. Rossback, Gary P. Sorensen