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Johns Hopkins University

John K Frost

James L Mulshine

Melvyn S Tockman

Norman J Pressman

Prabodh K Gupta

The present invention relates to a method for early detection of lung cancer. The method comprises obtaining samples from the body, especially respiratory tract material including sputum or bronchial fluid or any other pulmonary tissue or thoracic cells or regional lymph nodes, and assaying the samples with monoclonal antibodies for the presence of antigens whose enhanced presence correlates with the development of lung cancer. The method of the present invention permits identification of lung cancer up to two years prior to the development of clinical lung cancer, and thus enables early treatment of the lung cancer.

Method for early detection of lung cancer

A controlled access automated-switching conferencing system includes a special microprocessor-controlled control console disposed at each of a plurality of stations. Each station includes video and audio inputs and outputs. Central automatic video and audio switching devices switch the video and audio inputs so that they may be connected to any one or more of the video and audio outputs, and switch the audio outputs so that they may be connected to one or more audio inputs. A central novel system controller controls the automatic switchers in response to selections of function and station selection members associated with any of the control consoles. An interface is associated with each station for operatively interconnecting the station control console, inputs, and outputs with the system controller, and a central line driver interfaces the system controller with the interface structure. The control console function select members have hold, call, cancel, and alternate video functions and a test function for the microprocessor.

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Lutherville, MD, United States of America

John K Frost