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After having used a number of the standard duodenal tubes, such as those of Jutte, Rehfuss, Lyon and Einhorn, with the aid of my brother and associate, Dr. Thomas J. Vischer, I designed a duodenal tip as shown in the accompanying illustration.
The tip is ¾ inch (2 cm.) in length, ¼ inch (0.6 cm.) in diameter, 11/64 inch at the threaded end and the caliber, 3/32 inch. There are five drain holes placed as shown in the illustration, each 0.067 inch in diameter and countersunk. The tip may be used on any standard tube. We have used the tip on both the Jutte and Rehfuss tubes. It weighs exactly 2.75 Gm.; it is made of German silver and is double gold plated.
After having constantly used the tip over a period of time, I have noted the following advantages:
The tube is more easily introduced; it is never necessary
Vischer CV. A NEW DUODENAL TIP. JAMA. 1926;86(21):1615. doi:10.1001/jama.1926.26720470004006d
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