Patents by Inventor Robert S. Dotson

Robert S. Dotson 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).

  • Fluid operated ophthalmic irrigation and aspiration device
    Patent number: 4274411
    Abstract: A fluid operated and controlled irrigation and aspiration device for ophthalmic use. A source of fluid under pressure is connected through foot pedal operated valves to clamps for controlling irrigation through a conventional handpiece, and to a vacuum generating device. Selecting valves are provided for isolating the vacuum generating means, and for directing pressure to a pulsing circuit. The pulsing circuit can be used to control the vacuum to yield a pulsing aspiration; and, in a modification of the device, the pulsing circuit can be used to control a pressure circuit to operate a cutting device.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: June 23, 1981
    Inventor: Robert S. Dotson, Jr.