Methods and apparatus for gripping a wire in a winding machine for winding dynamo-electric machine components are provided. The protective coating is typically heat treated to increase homogeneity of the coating and adherence with the substrate. In order to enable real-time monitoring of the state of the ANS, a second measurement signal indicative of a respiration rhythm of the patient is acquired and at least one indicator signal is generated by means of the first and second measurement signals. The heating temperature can be adjusted, if necessary. The oil passage may intersect the first circumferential end.