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Article
June 1938

A NEW INSTRUMENT FOR THE INTRALARYNGEAL APPLICATION OF RADON

Arch Otolaryngol. 1938;27(6):773-774. doi:10.1001/archotol.1938.00650030791008

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Abstract

A modification of the Jackson bronchoscope has been designed for the radon treatment of intrinsic carcinoma and other suitable lesions, such as angioma of the larynx. The radon is applied directly to the surface of the intralaryngeal tumor. The instrument can also be used for subglottic lesions. Radon gas is used instead of radium because of the possibility of concentrating a large quantity of radon in a small tube.

In the illustration A shows the steel radon carrier. A gold tube holding the radon is attached by a nickel screw thread to one end (left) of the radon carrier. The gold radon tube, which acts as a screen, or filter, has the following dimensions: length, 4.5 cm.; outside diameter, 0.5 cm.; thickness of the wall, 0.1 cm.

It contains two standard enamel silver screens, placed end to end. Each of these contains a glass radon tube. The quantity of radon

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