A Wartenberg wheel, also called a Wartenberg pinwheel or Wartenberg neurowheel, is a medical device for neurological use. Robert Wartenberg (1887–1956) designed the wheel to test nerve reactions (sensitivity) as it rolled systematically across the skin. A Wartenberg wheel is generally made of stainless steel with a handle of approximately 7 inches (18 cm) in length. The wheel, which has evenly spaced radiating sharp pins, rotates as it is rolled across the flesh. A disposable plastic version is available. Because of hygienic concerns, these devices are rarely used any more.
Clothing pattern-making can use a version of the Wartenberg wheel, called a pounce wheel, to transfer markings from fabric to paper. Pounce wheels resemble standard Wartenberg wheels in shape but have wooden handles.
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