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WILLIAM SNYDER, M.D.

AMA Arch Derm Syphilol. 1954;69(3):374.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

I wish to describe an extremely simple method for accurately spacing and centering the tube head of the Profexray skin therapy machine. Although the apparatus which I have devised is not available commercially, it is easily constructed at a cost of less than $1. The device is used with the detachable narrow treatment cone of 15 cm. focus-skin distance, supplied with the machine, and enables one to treat an open field at any chosen longer distance. For illustration, I shall choose a focus-skin distance of 20 cm.

The device consists of a cylindrical block of wood measuring 5 cm. longer than the cone and of such diameter that it just fits inside the cone. A circular piece of tin is nailed to its upper end, serving as a flange to prevent the cylinder from dropping through the cone (Figure 1).

1, cylindrical block of wood with circular piece of tin . . . [Full Text PDF of this Article]

Author Affiliations
PATERSON, N. J.

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