What you see here are Japanese Nelaton catheters. These catheters are from the portion of the collection that contains many items from World War II, including flags, field kits, and medicines. “Nelaton” refers to the famous French physician and surgeon who developed a technique for locating bullets called “Nelaton’s probe.”
Catheters in general can be used for a variety of “draining” procedures including blood, kidney fluid, drainage from an abscess, and the most common use; in draining the bladder.
These catheters are constructed from red rubber and are kept in the original Japanese case, black with red text.-- Max Johnson, HC&A Student Assistant