Patents by Inventor Stephen L. Javna

Stephen L. Javna 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).

  • Patent number: 4692153
    Abstract: This invention provides a surgical wound drain device which is adapted for postoperative multiphasic suction withdrawal of physiological fluids and coagulated solids and tissue debris from a wound cavity in a closed drainage system.The drain device consists of an inner catheter member, and an outer tubular member which has one or more thin pliable strips extending form the distal end periphery. The catheter withdraws accumulated body fluids in a postoperative first stage. The catheter is removed, and the remaining outer tubular member with its extended pliable strips is adapted to withdraw body fluids and coagulated solids and tissue debris in a second stage over an extended period.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: September 8, 1987
    Inventors: Richard B. Berlin, Richard B. Berlin, Jr., Stephen L. Javna
  • Patent number: 4484911
    Abstract: This invention provides a cannula-clamp device which is adapted for operative cystic cholangiography. In a preferred embodiment, the jaw members and extended shafts of the device are constructed of radiolucent material such as plastic.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: November 27, 1984
    Inventors: Richard B. Berlin, Stephen L. Javna, Richard B. Berlin, Jr.