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[A new apparatus for finger occlusion plethysmography. Disucssion of the method and diagnostic possibilities].

Based on the principles of an apparatus for the venous-occlusion plethysmography of the finger, which was developed by Goetz in 1934 and which was adapted for clinical usage by the authors of this article in 1971, a largely improved apparatus, which is also suitable for the usage in hospitals, is now presented. The various clinical methods of examination for the diagnosis of acrale bloodflow disturbances are discussed. Angioneuropathies (as for instance the Raynaud-syndrome) of diseases, which are connected with injuries of vessel-walls and stenosis resp. occlusion (M. Raynaud), can be differentiated with great certainty by means of the temperatures (15 degrees C and 32 degrees C), the quotient and the partial analysis of the volume-pulse form.