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The following is a description of a very simple but exceedingly useful little device to protect the hand in the none too pleasant examination and massage of the prostate gland.
A piece of ordinary dentist's rubber dam is cut in a circle which will have a diameter of 5 inches. Through the center of this, a hole three-eighths inch in diameter is made.
After an ordinary finger cot is slipped on, the finger is pushed through the center hole, which, of course, fits snugly, leaving a margin of at least three-sixteenths inch overhang. This makes a joint which is waterproof, holds the cot firmly, preventing wrinkles, and absolutely protects the knuckles from any dirt on the external parts.
The shield is easily and quickly made, easily cleaned, and costs practically nothing.
Ehrich WS. SHIELD FOR PROSTATIC EXAMINATIONS. JAMA. 1915;LXIV(23):1909. doi:10.1001/jama.1915.25710490002013a