Color treated condition-indicating ultrasonic surgical device and method

摘要

Disclosed is a condition-indicating ultrasonic surgical device and method of making the same in which an ultrasonic surgical instrument ( 10 ) has at least a portion of which has an outer surface which includes a color layer formed by anodizing or chemical processing. The color layer has a predetermined thickness wherein the thickness, and thereby the color, of the layer is affected by damage to the instrument to provide an indication that would otherwise be imperceptible by visual inspection.